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WO2018181833A1 - Composition photodurcissable, ongle artificiel, procédé de génération de données de mise en forme, procédé de production d'ongle artificiel, et système de production d'ongle artificiel - Google Patents

Composition photodurcissable, ongle artificiel, procédé de génération de données de mise en forme, procédé de production d'ongle artificiel, et système de production d'ongle artificiel Download PDF

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Publication number
WO2018181833A1
WO2018181833A1 PCT/JP2018/013492 JP2018013492W WO2018181833A1 WO 2018181833 A1 WO2018181833 A1 WO 2018181833A1 JP 2018013492 W JP2018013492 W JP 2018013492W WO 2018181833 A1 WO2018181833 A1 WO 2018181833A1
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Prior art keywords
modeling
artificial nail
meth
data
curing
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PCT/JP2018/013492
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English (en)
Japanese (ja)
Inventor
俊一 酒巻
塩出　浩久
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三井化学株式会社
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Priority to SG11201908868U priority Critical patent/SG11201908868UA/en
Priority to CN201880020005.7A priority patent/CN110446729B/zh
Priority to KR1020197028326A priority patent/KR102271174B1/ko
Priority to JP2019510201A priority patent/JP6854339B2/ja
Publication of WO2018181833A1 publication Critical patent/WO2018181833A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/30—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
    • C08F220/301—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety and one oxygen in the alcohol moiety
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D31/00—Artificial nails
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations
    • A61Q3/02—Nail coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/46—Polymerisation initiated by wave energy or particle radiation
    • C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/30—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety
    • C08F220/303—Esters containing oxygen in addition to the carboxy oxygen containing aromatic rings in the alcohol moiety and one or more carboxylic moieties in the chain
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
    • C08F222/1025—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate of aromatic dialcohols
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation

Definitions

  • the present invention relates to a photocurable composition, an artificial nail, an artificial nail modeling data generation method, an artificial nail manufacturing method, and an artificial nail manufacturing system.
  • nail art for nail care, manicure, pedicure and other nail care, makeup and decoration is popular.
  • nail art such as nail tips, sculptures, and chip overlays using decorated artificial nails (ie, artificial nails) has been gaining popularity.
  • Nail art is makeup and decoration applied to the nails of the limbs.
  • Nail salon is a store that performs nail art, and its technician is a manicurist.
  • nail art products on the market, and many women are doing professional nail art.
  • lacquer paints for automobiles were invented in the United States, and the nail polish currently used was developed by applying this technology.
  • nail polish using a lacquer paint is still widely used, but it has a problem in that it has poor adhesion to natural nails and peels off and comes off in a short period of time after treatment. For this reason, artificial nail materials using dental cold polymerization resins have been developed.
  • JP 2010-37330 A discloses an artificial nail composition characterized by using a specific photopolymerization initiator for an artificial nail composition with improved curability.
  • the present invention has been made in view of the above-described facts, and includes a photocurable composition, an artificial nail, a method for generating modeling data capable of manufacturing an artificial nail with high accuracy, a method for manufacturing an artificial nail, and an artificial nail manufacturing system. For the purpose of provision.
  • 3D printers In recent years, three-dimensional printers (that is, 3D printers) have been developed and applied to various fields. When applying a 3D printer to the field of nail art, it is assumed that conventional curable resins for gel nails are used by applying them directly to the nail and curing them. It cannot be said that it is suitable for the purpose of chip production, and there are problems in the bending strength, bending elastic modulus, bending resistance, tensile strength, elongation rate, etc. of the cured product. When using a 3D printer to produce an optically shaped object, preferably an artificial nail, considering the practicality, it has excellent bending strength (that is, bending strength) and bending with respect to the photocurable composition after photocuring. Elastic modulus, bending resistance, tensile strength and elongation are required.
  • an object of an embodiment of the present invention is a photocurable composition that is used for optical modeling and has excellent bending strength and bending elastic modulus after photocuring, and further has excellent bending resistance, tensile strength, and elongation. Is to provide.
  • An object of one embodiment of the present invention is a cured product of the above-mentioned photocurable composition, which is an artificial nail having excellent bending strength and bending elastic modulus, and further excellent bending resistance, tensile strength and elongation. Is to provide.
  • a photocurable composition containing a combination of specific monomer types is excellent in bending strength and bending elastic modulus after photocuring, and further has bending resistance, tensile strength and elongation.
  • the present invention was also completed by finding out that it is excellent in the rate, and that it is particularly suitable for the production of artificial nails by stereolithography. That is, specific means for solving the above-described problems are as follows.
  • a photocurable composition used for stereolithography which is a di (meta) having two aromatic rings and two (meth) acryloyloxy groups without a hydroxyl group and a carboxy group in one molecule.
  • (Meth) acrylic monomer (X) which is at least one selected from acrylic monomers and has a weight average molecular weight of 400 or more and 800 or less, at least one ring structure in one molecule, and one (meth) acryloyl
  • Metal salt (D) which is at least one selected from (meth) acrylic monomers having an oxy group and has a weight average molecular weight of 130 or more and 350 or less
  • a photocurable composition containing a photopolymerization initiator object which is a di (meta) having two aromatic rings and two (meth) acryloyloxy groups without a hydroxyl group and a carboxy group in one molecule.
  • (Meth) acrylic monomer (X) which is at least one selected from acrylic monomers and has a weight average mo
  • At least one of the di (meth) acrylic monomers constituting the (meth) acrylic monomer (X) is a compound represented by the following general formula (x-1) [1] to [3 ]
  • R 1x , R 2x , R 11x , and R 12x each independently represent a hydrogen atom or a methyl group.
  • R 3x and R 4x each independently represents a linear or branched alkylene group having 2 to 4 carbon atoms.
  • mx and nx each independently represents 0 to 10. However, 1 ⁇ (mx + nx) ⁇ 10 is satisfied.
  • At least one of the (meth) acrylic monomers constituting the (meth) acrylic monomer (D) is a compound represented by the following general formula (d-1) [1] to [5 ]
  • R 1d represents a hydrogen atom or a methyl group.
  • R 2d represents a single bond or a linear or branched alkylene group having 1 to 5 carbon atoms.
  • R 3d represents a single bond, an ether bond (—O—), an ester bond (—O— (C ⁇ O) —), or —C 6 H 4 —O—.
  • a 1d represents an aromatic ring which may have a substituent.
  • nd represents 1 to 2.
  • At least one of the (meth) acrylic monomers constituting the (meth) acrylic monomer (D) is a compound represented by the following general formula (d-3) [1] to [5 ]
  • R 6d represents a hydrogen atom or a methyl group
  • R 7d represents a single bond or a methylene group.
  • a 3d represents a ring structure other than at least one aromatic ring.
  • the ring structure other than the aromatic ring is a ring structure having a dicyclopentenyl skeleton, a dicyclopentanyl skeleton, a cyclohexane skeleton, a tetrahydrofuran skeleton, a morpholine skeleton, an isobornyl skeleton, a norbornyl skeleton, a dioxolane skeleton, or a dioxane skeleton.
  • At least one of the (meth) acrylic monomers constituting the (meth) acrylic monomer (D) includes at least one ring structure, one hydroxyl group, and one ( The photocurable composition according to any one of [1] to [5], which is a (meth) acrylic monomer having a (meth) acryloyloxy group. [11] The photocurable composition according to any one of [1] to [6], wherein the (meth) acrylic monomer (D) is o-phenylphenol EO-modified acrylate. [12] The photocurable composition according to any one of [1] to [6], wherein the (meth) acrylic monomer (D) is 3-phenoxybenzyl acrylate.
  • the content of the acrylic monomer (X) is any one of [1] to [12], which is 200 parts by mass or more with respect to 1000 parts by mass of the total content of the (meth) acrylic monomer components.
  • Photocurable composition Any one of [1] to [13], wherein the content of the acrylic monomer (D) is 30 parts by mass to 800 parts by mass with respect to 1000 parts by mass of the total content of the (meth) acrylic monomer components The photocurable composition as described in one.
  • generation method of the modeling data which can manufacture an artificial nail with high precision, the manufacturing method of an artificial nail, and the manufacturing system of an artificial nail is as follows. ⁇ 1> a reception step of receiving shape information that can specify a three-dimensional outer shape of the artificial nail to be formed; After the optical modeling is performed by the three-dimensional modeling apparatus on the basis of the three-dimensional modeling data and the predetermined modeling information, the contraction state generated in the model that is photocured by the curing apparatus under the predetermined curing condition is set to predetermined prediction information.
  • the prediction information includes modeling information indicating modeling conditions including an optical modeling material used for optical modeling in the three-dimensional modeling apparatus, and curing information indicating the curing conditions. Generation method of modeling data.
  • the prediction information includes shape data of the artificial nail manufactured in advance, modeling data generated from the shape data, and after curing of a model that is optically modeled and photocured based on the modeling data ⁇ 1> or ⁇ 2> forming data generation method including three-dimensional post-curing data indicating the outer shape of the.
  • ⁇ 4> An acquisition step of acquiring three-dimensional post-curing data indicating an external shape after curing of a modeled object that is optically modeled and photocured based on the modeling data; Generated based on the post-curing data acquired in the acquiring step, shape data of the artificial nail to be formed with respect to the post-curing data, a prediction result predicted in the prediction step for the shape data, and the prediction result An update step of updating the prediction information based on the modeling data that has been made, A method for generating modeling data according to any one of ⁇ 1> to ⁇ 3>.
  • ⁇ 5> including a synthesis step of synthesizing the modeling data of the plurality of artificial nails to be formed so that the plurality of artificial nails to be formed are arranged on a substrate and are integrally formed by the three-dimensional modeling apparatus.
  • any modeling data generation method any modeling data generation method.
  • the synthesis step synthesizes the modeling data so that a plurality of the substrates each having the plurality of artificial nails to be formed are arrayed in parallel by the three-dimensional modeling apparatus ⁇ 5 > Or ⁇ 6> modeling data generation method.
  • a prediction step to predict based on, The three-dimensional shape data of the artificial nail to be formed obtained from the shape information is corrected based on the prediction result of the prediction step, and the three-dimensional modeling device is used to optically model the artificial nail to be formed.
  • a generation step for generating three-dimensional modeling data Based on the modeling data generated by the generating step, a modeling step of generating a modeled object by the three-dimensional modeling apparatus; A curing step for further photocuring the modeled object modeled by the modeling step; A method of manufacturing an artificial nail including
  • ⁇ 9> An acquisition step of acquiring three-dimensional post-curing data indicating the outer shape of the modeled object from the modeled model after photocuring by the curing step; By comparing the post-curing data and the shape data of the artificial nail to be formed, an evaluation step for evaluating the molded object after the curing,
  • the method for producing an artificial nail according to ⁇ 8> comprising: ⁇ 10>
  • the method for manufacturing an artificial nail according to ⁇ 9> including an update step of updating the prediction information based on an evaluation result of the evaluation step.
  • the method Prior to the curing step, includes ⁇ 8> to ⁇ 10>, including a cleaning step of removing excess optical modeling material used for optical modeling of the modeled object from the modeled object formed by the modeling step. Any artificial nail manufacturing method.
  • the prediction information includes the three-dimensional modeling apparatus, modeling information indicating modeling conditions including an optical modeling material used for modeling in the three-dimensional modeling apparatus, and curing information indicating the curing conditions ⁇ 12>.
  • Artificial nail manufacturing system ⁇ 14> In the prediction information stored in the modeling design apparatus, the shape data of the artificial nail manufactured in advance, the modeling data generated from the shape data, and the optical modeling is performed based on the modeling data.
  • artificial nail manufacturing system including three-dimensional post-curing data indicating an external shape of the cured model after curing.
  • the modeling design apparatus includes: An acquisition unit that acquires three-dimensional post-curing data indicating the outer shape of the modeled object that has been optically modeled and photocured based on the modeling data; Generated based on the post-curing data acquired in the acquisition unit, shape data of the artificial nail to be formed with respect to the post-curing data, a prediction result predicted by the prediction unit for the shape data, and the prediction result An update unit that updates the prediction information based on the modeling data that has been created; The artificial nail manufacturing system according to any one of ⁇ 12> to ⁇ 14>.
  • the modeling design apparatus includes: ⁇ 12> including a synthesizing unit that synthesizes the modeling data of the plurality of artificial nails to be formed so that the plurality of artificial nails to be formed are arranged on a substrate and are integrally formed by the three-dimensional modeling apparatus.
  • the synthetic part of the modeling design device includes providing identification information for identifying each of the plurality of artificial nails to be formed with data formed on the substrate.
  • the synthesis unit of the modeling design apparatus uses the modeling data so that the plurality of substrates each having the plurality of artificial nails to be formed are modeled in parallel by the three-dimensional modeling apparatus.
  • ⁇ 16> or ⁇ 17> artificial nail production system to be synthesized to be synthesized.
  • An acquisition unit that acquires three-dimensional post-curing data indicating the external shape of the modeled object from the modeled article that has been photocured by the curing device, and the data after the curing and the shape of the artificial nail to be formed
  • the artificial nail manufacturing system according to any one of ⁇ 12> to ⁇ 18>, including an evaluation device that includes an evaluation unit that evaluates the cured object after comparing with data.
  • the modeling design device includes an update unit that updates the prediction information based on an evaluation result of the evaluation unit of the evaluation device.
  • modeling data capable of manufacturing an artificial nail with high accuracy can be obtained.
  • an artificial nail can be manufactured with high precision.
  • a photocurable composition that is used for optical modeling and is excellent in bending strength and bending elastic modulus and further in bending resistance and elongation after photocuring.
  • an artificial nail which is a cured product of the above-mentioned photocurable composition, which is excellent in bending strength and bending elastic modulus, and further excellent in bending resistance and elongation.
  • a numerical range expressed using “to” means a range including numerical values described before and after “to” as a lower limit value and an upper limit value.
  • the “ether bond” refers to a bond connecting two hydrocarbon groups with an oxygen atom (that is, a bond represented by —O—) as normally defined. Therefore, “—O—” in an ester bond (ie, —C ( ⁇ O) —O—) does not correspond to an “ether bond”.
  • “(meth) acrylic monomer” is a concept including both an acrylic monomer and a methacrylic monomer.
  • (meth) acrylate” is a concept including both acrylate and methacrylate.
  • the “(meth) acryloyloxy group” is a concept including both an acryloyloxy group and a methacryloyloxy group.
  • the photocurable composition which concerns on one Embodiment of this invention is a photocurable composition used for optical modeling, Comprising: It does not have a hydroxyl group and a carboxy group in 1 molecule, but two aromatic rings and two pieces (Meth) acrylic monomer (X) which is at least one selected from di (meth) acrylic monomers having a (meth) acryloyloxy group and has a weight average molecular weight of 400 or more and 800 or less, and at least one in one molecule (Meth) acrylic monomer (D) which is at least one selected from (meth) acrylic monomers having a ring structure of (1) and one (meth) acryloyloxy group and has a weight average molecular weight of 130 to 350, and A photocurable composition containing a photopolymerization initiator.
  • X is at least one selected from di (meth) acrylic monomers having a (meth) acryloyloxy group and has a weight average molecular weight of 400 or more and 800 or less
  • the photocurable composition according to an embodiment of the present invention includes a combination of the acrylic monomer (X) and the (meth) acrylic monomer (D), so that the bending strength and the flexural modulus are increased after photocuring. It excels in bending resistance and elongation. Therefore, an optically shaped article produced by optical shaping using the photocurable composition of the present embodiment, preferably an artificial nail, is also excellent in bending strength and bending elastic modulus, and further excellent in bending resistance and elongation. . Furthermore, the photocurable composition of the present embodiment has a viscosity suitable for production of artificial nails and the like by optical modeling (that is, examples of preferred forms of optical modeling, the same applies hereinafter), and bends after photocuring. The strength, bending elastic modulus, bending resistance, tensile strength, and elongation rate are preferable ranges for the artificial nail. That is, the photocurable composition of the present embodiment can be a photocurable artificial nail composition.
  • the “(meth) acrylic monomer component” refers to the entire (meth) acrylic monomer contained in the photocurable composition.
  • the “(meth) acryl monomer component” includes at least the (meth) acryl monomer (X) and the (meth) acryl monomer (D).
  • the “(meth) acrylic monomer component” may contain other (meth) acrylic monomers.
  • the photocurable composition replaces with the (meth) acryl monomer (X) by containing the (meth) acryl monomer (X), and does not have a hydroxyl group and a carboxy group in 1 molecule, but 3 or more ( Compared with the case of using a (meth) acryl monomer having a (meth) acryloyloxy group, the bending resistance, tensile strength and elongation after photocuring are improved.
  • 800 which is the upper limit of the weight average molecular weight of the (meth) acrylic monomer (X) is an upper limit provided from the viewpoint of bending strength and bending elastic modulus after photocuring.
  • 400 which is the lower limit of the weight average molecular weight of the (meth) acrylic monomer (X) is a lower limit provided from the viewpoint of ease of production or availability of the monomer.
  • the bending resistance after photocuring improves by including a (meth) acryl monomer (D). Further, by including the meth) acrylic monomer (D), the bending strength, bending elastic modulus, bending resistance, tensile strength and elongation rate after photocuring are excellent in a well-balanced manner.
  • the (meth) acrylic monomer (D) has at least one ring structure, so that the ring structure of the (meth) acrylic monomer (X) and the ring structure of the (meth) acrylic monomer (D) It is considered that the bending resistance is improved by increasing the intermolecular force and the intermolecular force between the ring structures of the (meth) acrylic monomer (D).
  • 350 which is the upper limit of the weight average molecular weight of the (meth) acrylic monomer (D) is an upper limit provided from the viewpoint of bending strength and bending elastic modulus after photocuring.
  • 130 which is the lower limit of the weight average molecular weight of the (meth) acrylic monomer (D), is a lower limit provided from the viewpoint of ease of production or availability of the monomer.
  • this bending strength Is preferably 10 MPa or more, more preferably 40 MPa or more, and even more preferably 60 MPa or more.
  • the photocurable composition of this embodiment is shaped into a size of 80 mm ⁇ 10 mm ⁇ thickness 4 mm to form a modeled object, and the resulting modeled object is irradiated with ultraviolet rays under the condition of 5 J / cm 2.
  • the glass transition temperature (Tg) after photocuring of the photocurable composition of the present embodiment is not particularly limited, but from the viewpoint of a balance of bending strength, bending elastic modulus, bending resistance, tensile strength and elongation,
  • the glass transition temperature (Tg) after photocuring is preferably 20 to 100 ° C., more preferably 40 to 80 ° C.
  • Examples of the SLA method include a method of obtaining a three-dimensional structure by irradiating a photocurable composition with a spot-like ultraviolet laser beam.
  • a liquid photocurable composition is stored in a container, and a spot-like ultraviolet laser beam is used so that a desired pattern is obtained on the liquid surface of the liquid photocurable composition.
  • a spot-like ultraviolet laser beam is used so that a desired pattern is obtained on the liquid surface of the liquid photocurable composition.
  • a cured layer having a desired thickness is formed on the modeling table, and then the modeling table is moved (that is, raised or lowered) on the cured layer.
  • a liquid photocurable composition for one layer may be supplied and cured in the same manner to repeat a lamination operation for obtaining a continuous cured layer.
  • Examples of the DLP method include a method of obtaining a three-dimensionally shaped object by irradiating a photocurable composition with planar light.
  • the descriptions in Japanese Patent No. 511880 and Japanese Patent No. 5235556 can be appropriately referred to.
  • a lamp that emits light other than laser light such as a high pressure mercury lamp, an ultra high pressure mercury lamp, a low pressure mercury lamp, or the like as a light source.
  • a planar drawing mask having a plurality of digital micromirror shutters arranged in a plane is disposed between the light source and the modeling surface of the photocurable composition, and the photocurable composition is interposed through the planar drawing mask. What is necessary is just to sequentially laminate
  • the photocurable composition of the present embodiment has a viscosity at 25 ° C. and 50 rpm, measured using an E-type viscometer, from the viewpoint of suitability for production of artificial nails and the like by stereolithography, from 20 mPa ⁇ s to 3000 mPa ⁇ s. s is preferable, 20 mPa ⁇ s to 1500 mPa ⁇ s is more preferable, and 20 to 1200 mPa ⁇ s is particularly preferable.
  • the lower limit of the viscosity range is more preferably 30 mPa ⁇ s, and particularly preferably 40 mPa ⁇ s.
  • the viscosity in 25 degreeC and 50 rpm of a photocurable composition according to the system of optical modeling.
  • the viscosity is preferably 20 mPa ⁇ s to 3000 mPa ⁇ s, more preferably 20 mPa ⁇ s to 1500 mPa ⁇ s, and more preferably 30 mPa ⁇ s to 1200 mPa ⁇ s. Particularly preferred is s.
  • the viscosity is preferably 50 mPa ⁇ s to 500 mPa ⁇ s, and more preferably 50 mPa ⁇ s to 250 mPa ⁇ s.
  • the viscosity is preferably 20 mPa ⁇ s to 500 mPa ⁇ s, and preferably 20 mPa ⁇ s to 100 mPa ⁇ s.
  • the (meth) acrylic monomer component in the photocurable composition of this embodiment contains a (meth) acrylic monomer (X).
  • the (meth) acrylic monomer (X) is at least selected from di (meth) acrylic monomers that do not have a hydroxyl group and a carboxy group in one molecule and have two aromatic rings and two (meth) acryloyloxy groups. It is 1 type and a weight average molecular weight is 400-800.
  • the (meth) acrylic monomer (X) mainly contributes to an improvement in bending strength and bending elastic modulus after photocuring.
  • At least one of the di (meth) acrylic monomers has 1 to 10 ether bonds in one molecule.
  • the bending strength and bending elastic modulus after photocuring are further improved.
  • the number of ether bonds in one molecule is more preferably 2 or more and 6 or less, and more preferably 2 or more and 4 or less from the viewpoint of further improving the bending strength and flexural modulus after photocuring. Particularly preferred.
  • R 1x , R 2x , R 11x , and R 12x each independently represent a hydrogen atom or a methyl group.
  • R 3x and R 4x each independently represents a linear or branched alkylene group having 2 to 4 carbon atoms.
  • mx and nx each independently represents 0 to 10. However, 1 ⁇ (mx + nx) ⁇ 10 is satisfied.
  • R 1x and R 2x are preferably methyl groups.
  • R 3x and R 4x are each independently preferably an ethylene group, a trimethylene group, a tetramethylene group, a 1-methylethylene group, a 1-ethylethylene group, or a 2-methyltrimethylene group.
  • a 1-methylethylene group is more preferable.
  • R 3x and R 4x are preferably both ethylene, trimethylene, tetramethylene, 1-methylethylene or 2-methyltrimethylene, and both are ethylene or 1-methylethylene. Is more preferable.
  • mx + nx is 1 to 10, but is particularly preferably 2 to 6 from the viewpoint of further improving the bending strength and bending elastic modulus after photocuring.
  • At least one of the di (meth) acrylic monomers constituting the (meth) acrylic monomer (X) reduces the viscosity of the photocurable composition, and fracture toughness, flexural strength, and flexural elasticity after photocuring. From the viewpoint of further improving the rate, a compound represented by the following general formula (x-2) is more preferable.
  • R 5x is more present in the general formula (x-2), a plurality of R 5x may be be the same or different. The same applies to each of R 6x , R 7x , and R 8x .
  • structural formulas of ethoxylated bisphenol A di (meth) acrylate and ethoxylated bisphenol A dimethacrylate are shown below.
  • the content of the (meth) acrylic monomer (X) is not particularly limited as long as it is less than 1000 parts by mass with respect to 1000 parts by mass of the total content of the (meth) acrylic monomer components, but the fracture toughness after photocuring From this viewpoint, it is preferably 950 parts by mass or less, more preferably 900 parts by mass or less, and further preferably 850 parts by mass or less.
  • the (meth) acrylic monomer represented by the general formula (d-1) include, for example, phenoxyethylene glycol (meth) acrylate, 3-phenoxybenzyl (meth) acrylate, o-phenylphenol EO-modified (meth) Acrylate, o-phenylphenol (meth) acrylate, p-cumylphenol (meth) acrylate, p-nonylphenol (meth) acrylate, p-methylphenol (meth) acrylate, neopentyl glycol- (meth) acrylic acid-benzoic acid Ester, benzyl (meth) acrylate, phenyl (meth) acrylate, phenylglycidyl ether (meth) acrylic acid adduct, phenoxyethylene glycol (meth) acrylate, phenoxydiethylene glycol (meth) acrylate Neopentyl glycol (meth) acrylic acid benzoate, naphthoxy EO modified
  • R 1d , R 4d and R 5d each independently represent a hydrogen atom or a methyl group.
  • a 2d represents at least one aromatic ring which may have a substituent.
  • nd represents 1 to 2.
  • the aromatic ring in A 2d and preferable examples of the aromatic ring those exemplified for A 1d can be applied as they are.
  • R 4d there are a plurality, the plurality of R 4d may be be the same or different.
  • the weight average molecular weight of the (meth) acrylic monomer (D) is from 130 to 350, preferably from 150 to 300, and more preferably from 150 to 280.
  • R 6d represents a hydrogen atom or a methyl group
  • R 7d represents a single bond or a methylene group.
  • a 3d represents a ring structure other than at least one aromatic ring.
  • the ring structure other than the aromatic ring is not particularly limited, and may be a monocyclic structure or a polycyclic structure.
  • the number of ring members of the ring structure other than the aromatic ring is not limited, but a 5- to 12-membered ring is preferable.
  • the ring structure other than the aromatic ring is preferably an alicyclic structure or a heterocyclic structure. Examples of the hetero atom in the heterocyclic structure include O, S and / or N.
  • ring structures other than aromatic rings include, for example, dicyclopentenyl skeleton, dicyclopentanyl skeleton, cyclohexane skeleton, tetrahydrofuran skeleton, morpholine skeleton, isobornyl skeleton, norbornyl skeleton, dioxolane skeleton or dioxane skeleton, cyclopropane skeleton, cyclobutane skeleton, Cyclopentane skeleton, cycloheptane skeleton, cyclooctane skeleton, cyclopropene skeleton, cyclobutene skeleton, cyclopentene skeleton, cyclohexene skeleton, cycloheptene skeleton, cyclooctene skeleton, cyclohexadiene skeleton, cyclooctadiene skeleton, norbornene skeleton, norbornadiene skeleton
  • At least one of the (meth) acrylic monomers represented by the general formula (d-3) is preferably a compound not containing an imide structure from the viewpoint of suppressing water absorption. That is, the (meth) acrylic monomer represented by the general formula (d-3) is represented by the following general formula (d-4) from the viewpoint of further improving the bending strength and the flexural modulus after photocuring. More preferably, it is a compound.
  • R 6d represents a hydrogen atom or a methyl group.
  • R 7d represents a single bond or a methylene group.
  • a 4d represents a ring structure having a dicyclopentenyl skeleton, a dicyclopentanyl skeleton, a cyclohexane skeleton, a tetrahydrofuran skeleton, a morpholine skeleton, an isobornyl skeleton, a norbornyl skeleton, a dioxolane skeleton, or a dioxane skeleton.
  • the ring structure represented by A 4d may have a substituent such as an alkyl group (methyl group, ethyl group, propyl group, butyl group, etc.).
  • the weight average molecular weight of the (meth) acrylic monomer represented by the general formula (d-4) is 130 or more and 350 or less, preferably 150 or more and 240 or less, and more preferably 180 or more and 230 or less.
  • Examples of the (meth) acrylic monomer represented by the general formula (d-4) include isobornyl (meth) acrylate, norbornyl (meth) acrylate, dicyclopentenyl (meth) acrylate, dicyclopentanyl (meth) acrylate, Cyclohexyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, (meth) acryloylmorpholine, 4-tert-butylcyclohexanol (meth) acrylate, cyclohexanedimethanol di (meth) acrylate, (2-methyl-2-ethyl 1,3-dioxolan-4-yl) methyl acrylate, cyclic trimethylolpropane formal acrylate, and the like.
  • the content of the (meth) acrylic monomer (D) is 30 parts by mass to 800 parts by mass with respect to 1000 parts by mass of the total content of the (meth) acrylic monomer components. It is preferably 50 parts by mass to 700 parts by mass.
  • the (meth) acryl monomer component in the photocurable composition of the present embodiment is within the range where the effects of the invention are exerted, and other than the (meth) acryl monomer (X) and (meth) acryl monomer (D) described above.
  • the (meth) acryl monomer may be included.
  • the total content of the (meth) acrylic monomer (X) and the (meth) acrylic monomer (D) in the (meth) acrylic monomer component is 60% by mass or more based on the total amount of the (meth) acrylic monomer component. Preferably, it is 80% by mass or more, and more preferably 90% by mass or more.
  • the total content may be 100% by mass with respect to the total amount of the (meth) acrylic monomer component.
  • the photocurable composition of the present embodiment contains a photopolymerization initiator.
  • the photopolymerization initiator is not particularly limited as long as it generates radicals by irradiating light, but it is preferably one that generates radicals at the wavelength of light used for optical modeling.
  • the wavelength of light used for stereolithography is generally 365 nm to 500 nm, but is practically preferably 365 nm to 430 nm, more preferably 365 nm to 420 nm.
  • Compound, benzophenone compound, thioxanthone compound, ⁇ -acyloxime ester compound, phenylglyoxylate compound, benzyl compound, azo compound, diphenyl sulfide compound, organic dye compound, iron-phthalocyanine compound, benzoin Examples include ether compounds and anthraquinone compounds. Of these, alkylphenone compounds and acylphosphine oxide compounds are preferred from the viewpoint of reactivity and the like.
  • alkylphenone compounds examples include 1-hydroxy-cyclohexyl-phenyl-ketone (Irgacure 184: manufactured by BASF).
  • acylphosphine oxide compound examples include bis (2,4,6-trimethylbenzoyl) -phenylphosphine oxide (Irgacure 819: manufactured by BASF), 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide ( Irgacure TPO: manufactured by BASF).
  • the photocurable composition of this embodiment may contain only 1 type of photoinitiators, and may contain 2 or more types.
  • the content of the photopolymerization initiator in the photocurable composition of this embodiment (the total content in the case of two or more) is 1 with respect to 1000 parts by mass of the total content of the (meth) acryl monomer component. It is preferably from 50 parts by weight to 50 parts by weight, more preferably from 2 parts by weight to 30 parts by weight, even more preferably from 3 parts by weight to 25 parts by weight.
  • the photocurable composition of this embodiment may contain at least one other component other than the (meth) acrylic monomer component and the photopolymerization initiator, if necessary.
  • the total content of the (meth) acrylic monomer component and the photopolymerization initiator is preferably 60% by mass or more, more preferably 80% by mass or more, based on the total amount of the photocurable composition. More preferably, it is 90 mass% or more.
  • Examples of other components include coloring materials.
  • coloring materials when using the photocurable composition of this embodiment for production of an artificial nail, from a viewpoint of aesthetics, you may color by a desired color tone by making a photocurable composition contain a coloring material.
  • the color material include pigments, dyes, and pigments. More specifically, examples of the coloring material include synthetic tar dyes, aluminum lakes of synthetic tar dyes, inorganic pigments, and natural dyes.
  • curable resins other than the above (meth) acrylic monomer component for example, other curable monomers other than the above (meth) acrylic monomer component, etc. may also be mentioned.
  • thermal polymerization initiator is also mentioned as another component.
  • the photocurable composition of the present embodiment contains a thermal polymerization initiator, it is possible to use photocuring and thermosetting together.
  • the thermal polymerization initiator include a thermal radical generator and an amine compound.
  • coupling agents such as silane coupling agents (eg 3-acryloxypropyltrimethoxysilane), rubber agents, ion trapping agents, ion exchange agents, leveling agents, plasticizers, antifoaming agents, etc. These additives may be mentioned.
  • the method for preparing the photocurable composition of this embodiment is not particularly limited, and the acrylic monomer (X), the (meth) acrylic monomer (D), and the photopolymerization initiator (and other components as necessary) are mixed.
  • a method is mentioned.
  • Means for mixing each component is not particularly limited, and examples thereof include means such as dissolution by ultrasonic waves, a double-arm stirrer, a roll kneader, a twin screw extruder, a ball mill kneader, and a planetary stirrer.
  • the photocurable composition of the present embodiment may be prepared by mixing components and removing the impurities by filtering with a filter and further performing a vacuum defoaming treatment.
  • Photocured product In performing photocuring using the photocurable composition of this embodiment, it does not restrict
  • an artificial nail As a hardened
  • the artificial nail that is a cured product of the photocurable composition of the present embodiment is excellent in bending strength, bending elastic modulus, bending resistance, tensile strength, and elongation.
  • the size of the artificial nail of the present embodiment is not particularly limited, and an artificial nail having a desired size can be manufactured.
  • the artificial nail of this embodiment may be a set. Further, only a part of the artificial nail of the present embodiment may be manufactured using the photocurable composition of the present embodiment, and the entire artificial nail is manufactured using the photocurable composition of the present embodiment. Also good.
  • the “apparatus” (that is, the device) may be a device having a predetermined function, may exist as an independent device, or may be a part of a device having other functions. May be present.
  • a 3D modeling device, a curing device, a light curing device, a modeling design device, a 3D shape measuring device, and an evaluation device exist in any form as long as each has the function described in the location described. You may do it.
  • the photocuring apparatus may be a device having a light irradiation function incorporated in a 3D printer, or may be an apparatus independent of the 3D printer.
  • the manufacturing process of the artificial nail according to the present embodiment includes a shape acquisition process 80 as a reception part, a design process 82 as a design part, a modeling process 84 as a modeling part, a cleaning process 86, and a curing process 88 as a curing part.
  • the artificial nail is manufactured as a plain artificial nail that has not been decorated through a shape acquisition process 80, a design process 82, a modeling process 84, a cleaning process 86, and a curing process 88.
  • the cleaning process 86 may be included in the modeling process 84 as a post-process of the modeling process 84, and the cleaning process 86 is included in the curing process 88 as a pre-process of the curing process 88. May be.
  • a rapid prototype method is applied to create a three-dimensional image of an artificial nail (that is, a three-dimensional model, hereinafter also referred to as a modeled object) based on three-dimensional data (hereinafter also referred to as modeled data).
  • a three-dimensional model hereinafter also referred to as a modeled object
  • three-dimensional data hereinafter also referred to as modeled data.
  • modeling techniques binder injection method, directed energy volume method, material extraction method, material injection method, powder bed fusion method, sheet lamination method, liquid tank photopolymerization method, additive manufacturing method, stereolithography method, Any of a powder shaping method, a hot melt lamination method, an ink jet method, and the like may be applied.
  • a photo-curable composition is used as an optical modeling material, and a modeled object that is an artificial nail is manufactured by optical modeling.
  • the method of stereolithography and the viscosity of the photocurable composition are as described above.
  • a 3D printer to which any of the SLA method, the DLP method, and the inkjet method is applied is used, and the 3D printer operates with three-dimensional data (hereinafter, modeling data).
  • modeling data three-dimensional data
  • methods other than the SLA method, the DLP method, and the ink jet method may be applied to the 3D printer.
  • the washing process 86 the surplus photocurable composition is washed away and removed from the molded article manufactured by optical modeling using the photocurable composition in the modeling process 84. That is, the uncured photocurable composition adhering to the modeled object is removed.
  • the photocurable composition is further photocured to finish the artificial nail.
  • photocuring is performed on the modeled object based on preset photocuring conditions.
  • the curing conditions include designation of a photocuring apparatus and designation of operating conditions of the photocuring apparatus.
  • the artificial nail is manufactured by performing photocuring on the modeled object based on the operating condition set in the curing condition using the photocuring apparatus specified in the curing condition.
  • light for example, laser light
  • light having an arbitrary wavelength can be applied, but light having a wavelength capable of obtaining relatively high light energy is preferable.
  • the wavelength is more preferably 320 nm to 420 nm.
  • the shape acquisition step 80 receives shape information related to the shape and dimensions of the artificial nail to be formed.
  • the shape information on the shape and dimensions of the artificial nail to be formed includes the outer shape, length, width, thickness, degree of warpage (that is, curvature) in the length direction, and degree of warpage in the width direction. It is preferable that information that can specify the included three-dimensional shape is included.
  • Such artificial nail shape information includes at least three-dimensional data indicating the shape of the surface (hereinafter referred to as the back surface of the artificial nail) in contact with the surface of a human nail (hereinafter referred to as the nail), and the artificial nail to be formed. Information including the thickness at each position on the back surface of the nail is applied.
  • the shape information of the artificial nail includes three-dimensional data (hereinafter referred to as shape data) that can specify the three-dimensional shape (that is, the outer shape) of the artificial nail to be formed or data that can generate shape data.
  • shape data three-dimensional data
  • the back surface of the artificial nail includes a surface (for example, a surface protruding from the toe) deviated from the nail.
  • the shape acquisition step 80 not only accepts shape information about the shape and dimensions of the artificial nail to be formed, but also uses the three-dimensional shape measuring device (that is, a 3D scanner) to obtain shape information about the shape and size of the artificial nail to be formed. You may read and acquire. It is preferable that the shape information of the artificial nail acquired in the shape acquisition step 80 includes information for specifying the requester and the attachment target of the artificial nail to be formed. That is, the shape information of the artificial nail to be formed includes information (for example, customer information) that identifies the customer who is intended to be worn on the fingernail of the finger or the customer who requested the formation of the artificial nail. Is preferred.
  • the shape information includes at least information indicating whether the finger is to be worn on the left or right limb, the first finger (that is, the thumb, the thumb), the second finger (that is, the index finger, the index finger), the first Information (that is, target information) indicating which of the three fingers (that is, the middle finger), the fourth finger (that is, the ring finger), and the fifth finger (that is, the little finger) is attached is included. preferable.
  • the shape acquisition step 80 information specifying the requester and the target for attaching the artificial nail to be formed is input, and the input information is received as shape information of the artificial nail. Furthermore, in the shape information acquired in the shape acquisition process 80, the optical modeling material (for example, component contained in a photocurable composition or a photocurable composition) used for the optical modeling of an artificial nail, it uses for optical modeling.
  • the designation of a 3D printer and the designation of curing conditions may be included. In this case, in the shape acquisition step 80, the input designation is accepted as the shape information of the artificial nail by inputting the stereolithography material, the designation of the 3D printer, and the designation of the curing condition.
  • the design step 82 three-dimensional shape data of the artificial nail formed from the artificial nail shape information is generated.
  • modeling data used for the modeling process 84 is generated from the generated shape data.
  • the design process 82 sets the modeling conditions in the modeling process 84.
  • the modeling conditions include the setting (or designation) of a 3D printer as a three-dimensional modeling apparatus used for manufacturing a modeled object in the modeling process 84, and the wavelength of light when operating the 3D printer (for example, the center wavelength or wavelength band). ), Setting of light intensity, irradiation time and the like.
  • the modeling conditions include a photocurable composition used for optical modeling.
  • the design process 82 specifies the 3D printer and the modeling conditions based on the shape information of the artificial nail to be formed. .
  • the 3D printer specification and the modeling condition specification are not included in the shape information of the artificial nail to be formed, the 3D printer and the modeling condition are input and specified in the design process 82 or set in advance. The selected combination is selected and specified.
  • the design process 82 designates the curing conditions in the curing process 88.
  • the curing conditions include designation of a photocuring device as a curing device used for photocuring of a modeled object in the curing step 88, and a wavelength of light (for example, laser light) when operating the photocuring device (that is, center wavelength or Wavelength band), light intensity, light irradiation time, and the like.
  • the setting of the curing condition is performed based on the shape information of the artificial nail to be formed when the shape information of the artificial nail to be formed includes the designation of the photocuring device and the designation of the curing condition.
  • the design process 82 specifies the curing condition by the same method as the modeling condition.
  • the size and shape of the artificial nail as the modeled object after curing are predicted based on the modeling conditions, the curing conditions, and the prediction information set in advance.
  • the modeling data is generated so that the predicted size and shape of the artificial nail match the size and shape of the artificial nail to be formed (including a state that can be regarded as substantially matching).
  • a model is manufactured by optical modeling based on the modeling data and modeling conditions generated in the design process 82, and in the curing process 88, modeling is performed based on the curing conditions specified in the design process 82.
  • Photocuring the object An artificial nail excellent in bending strength and bending elastic modulus can be obtained by further photocuring the optically modeled object to produce an artificial nail.
  • an evaluation step 90 is provided in the manufacturing process of the artificial nail in the present embodiment.
  • the evaluation step 90 it is evaluated whether or not an artificial nail having the same size (dimension) and shape as the artificial nail to be formed has been manufactured.
  • the evaluation step 90 after obtaining the post-curing data as the three-dimensional data of the molded article after curing (for example, after photocuring in the curing step 88), the shape data of the artificial nail formed from the design step 82 and Get modeling data.
  • the manufactured artificial nail is evaluated by collating (or comparing) the post-curing data and the shape data.
  • the manufactured artificial nail is delivered to the customer as a product.
  • FIG. 2 an outline of the artificial nail is shown in a perspective view, an artificial nail 10 represented by shape data is shown by a two-dot chain line, and an artificial nail represented by data after modeling (that is, , The molded article after curing) 12 is indicated by a solid line.
  • FIG. 2 shows the X, Y, and Z axes with the base side of the artificial nails 10 and 12 (that is, the side opposite to the fingertips) set to the Z axis origin side.
  • the modeled object after curing is contracted with respect to the length, width, thickness, and volume of the modeled object after curing.
  • shrinkage occurs compared to before photocuring during the optical modeling and after the photocuring. That is, the modeled object is contracted when it is optically modeled in the modeling process 84 with respect to the modeled data, and at the same time, it is contracted not only when it is photocured in the curing process 88.
  • the shrinkage of a modeled object in optical modeling and photocuring is affected by the photocurable composition, modeling conditions, curing conditions, and the like used for optical modeling.
  • the environmental state for example, temperature and humidity
  • the environmental state for example, temperature and humidity
  • the environmental state for example, temperature and humidity
  • the modeled object when the modeled object is photocured and cured affects the shrinkage of the modeled object in the optical modeling and photocuring.
  • the artificial nail is formed with a thin wall, and has a warp in at least one of the length direction and the width direction so that a surface in contact with the surface of the bare nail (hereinafter also referred to as a back surface of the artificial nail) is concave. For this reason, a slight contraction occurs in the cured artificial nail 12 to change the warp, and the fit when the artificial nail 10 is actually attached to the nail changes.
  • the prediction information based on at least a photocurable composition (or a component of the photocurable composition) used for modeling, modeling conditions, and curing conditions, shrinkage after curing of the modeled object Predict the state.
  • the prediction information may include environmental information such as temperature and humidity in each of the modeling environment and the curing environment.
  • the predicted contraction state includes changes in warpage due to the thickness of the artificial nail in addition to the dimensions such as length, width, thickness and volume.
  • a contraction state for example, contraction amount or contraction rate, change in warpage
  • shape data is corrected based on the predicted contraction state to generate modeling data for the artificial nail.
  • the modeling data indicates that the artificial nail 12 after curing has the same length, width, thickness and volume as the artificial nail 10 to be formed, and the warp generated in the artificial nail 12 is similar to the warp of the artificial nail 10. Is generated as follows.
  • the prediction information is updated using the post-curing data of the artificial nail 10 acquired in the evaluation process 90, the modeling conditions for manufacturing the artificial nail 10, and the curing conditions. In addition, it is more preferable to include environmental information in the update of the prediction information.
  • the evaluation step 90 when it is evaluated that there is a difference in size, shape, or the like between the artificial nail indicated by the shape data and the artificial nail indicated by the post-curing data after hardening (for example, manufactured) When the artificial nail 12 cannot be regarded as the artificial nail 10), the prediction information is updated, and the modeling data is corrected by recorrecting the shape data of the corresponding artificial nail based on the updated prediction information.
  • the artificial nail 12 is regenerated (that is, remanufactured) based on the regenerated modeling data.
  • FIG. 3 is a block diagram illustrating a schematic configuration of the modeling design system 20 according to the present embodiment.
  • a CAD Computer aided design
  • the modeling design system 20 preferably includes at least a configuration that bears the processing function of the evaluation step 90, and may include a configuration that bears the processing function of the shape acquisition step 80.
  • the modeling design system 20 may include a configuration that handles each processing function of the modeling process 84 and the curing process 88.
  • the modeling design system 20 of this Embodiment includes the structure which bears the process mechanism in the shape acquisition process 80, the modeling process 84, the hardening process 88, and the evaluation process 90 as an example, and the modeling design system 20 is the artificial nail 10. It also functions as a manufacturing system.
  • the modeling design system 20 includes an arithmetic processing unit 22 provided with a CPU, a main storage unit 24, an input unit 26, an output unit 28, an auxiliary storage unit 30, and an interface unit 32.
  • the arithmetic processing unit 22, the main storage unit 24, the input unit 26, the output unit 28, the auxiliary storage unit 30, and the interface unit 32 are configured by a computer connected to each other via a bus 34.
  • the main storage unit 24 stores an operation program (OS) or the like of the arithmetic processing unit 22.
  • the arithmetic processing unit 22 reads out and executes the operation program from the main storage unit 24 so that the modeling design system 20 operates.
  • the input unit 26 includes input devices such as a keyboard, a mouse, and a tablet.
  • the output unit 28 includes output devices such as a display and a printer.
  • the interface unit 32 of the modeling design system 20 includes a three-dimensional measuring device (that is, a 3D scanner) 36 used as a reading unit when the modeling design system 20 functions as the shape acquisition process 80 and the evaluation process 90, and a modeling process 84.
  • a three-dimensional modeling apparatus (that is, a 3D printer) 38 to be used and a photocuring apparatus 40 as a curing apparatus used for the curing step 88 are connected.
  • the 3D printer 38 for example, a desktop 3D printer Form2 (manufactured by Formlabs) or the like is used.
  • the environmental sensor 42 that detects environmental information (for example, the installation environment of the 3D printer 38) such as temperature and humidity during modeling in the modeling process 84 is provided, and at the time of curing in the curing process 88.
  • An environmental sensor 44 that detects environmental information such as temperature and humidity (for example, the installation environment of the photocuring device 40) is provided.
  • Each of the environmental sensors 42 and 44 is connected to the modeling design system 20.
  • the interface unit 32 may be connected to a dedicated communication network such as a LAN (Local Area Network) or a public communication network such as the Internet, which is preferable.
  • a dedicated communication network such as a LAN (Local Area Network) or a public communication network such as the Internet
  • each of the 3D scanner 36, the 3D printer 38, the light curing device 40, and the environmental sensors 42 and 44 can transmit and receive data (or information) to each other via a dedicated communication network or a public communication network.
  • the modeling design system 20 can be connected to the modeling design system 20. Accordingly, even if each of the 3D scanner 36, the 3D printer 38, the light curing device 40, and the modeling design system 20 is provided in different places (for example, remote locations), the 3D scanner 36, 3D printer is controlled by the modeling design system 20.
  • the modeling design system 20 can be connected to each of one or a plurality of 3D scanners 36, 3D printers 38, and the photo-curing devices 40, and the artificial nail
  • the manufacturing system can be configured.
  • auxiliary storage unit 30 of the modeling design system 20 for example, a nonvolatile storage medium capable of rewriting information such as a hard disk device is used.
  • a modeling design program 50 such as commercially available CAD software (for example, 3D CAD software) is installed in the auxiliary storage unit 30.
  • the auxiliary storage unit 30 stores a shape acquisition program 52, a modeling program 54, a photocuring program 56, an evaluation program 58, and the like.
  • the auxiliary storage unit 30 is formed with a prediction information database 60 and also stores a prediction program 62 and a learning program 64.
  • the arithmetic processing unit 22 reads the modeling design program 50 and the shape acquisition program 52 from the auxiliary storage unit 30 and executes them, so that the modeling design system 20 receives the design unit responsible for the design process 82 and the shape acquisition process 80. It functions as a part.
  • the modeling design system 20 functions as a reception unit and a design unit, thereby receiving shape information of the artificial nail and generating shape data from the received shape information.
  • the modeling design system 20 generates modeling data from the shape data, and sets modeling conditions and curing conditions.
  • the modeling design system 20 can output modeling data, modeling information, and curing information by the interface unit 32 functioning as an output unit.
  • the modeling design system 20 functions as an output unit and functions as a modeling unit responsible for the modeling process 84, and controls the operation of the 3D printer 38. To make an artificial nail.
  • the arithmetic processing unit 22 reads and executes the photocuring program 56 and the evaluation program 58, the modeling design system 20 functions as a curing unit responsible for the curing step 88 and an evaluation unit responsible for the evaluation step 90.
  • the modeling design system 20 controls the operation of the photocuring device 40 to perform photocuring of the artificial nail to form the artificial nail 12.
  • the modeling design system 20 controls the operation of the 3D scanner 36, acquires post-curing data from the artificial nail 12, and evaluates the acquired post-curing data.
  • the modeling design system 20 When the arithmetic processing unit 22 reads and executes the learning program 64, the modeling design system 20 functions as a learning unit and constructs (or updates) the database 60. In addition, when the arithmetic processing unit 22 reads and executes the prediction program 62, the modeling design system 20 functions as a prediction unit that predicts shape data or post-curing data for the modeling data from the prediction information stored in the database 60. To do. Moreover, the modeling design system 20 functions as a prediction unit, so that the modeling design system 20 generates modeling data in which the shape data is corrected based on the prediction result.
  • modeling information and curing information are stored in association with the shape information of the artificial nail.
  • the shape information of the artificial nail stored in the database 60 includes at least shape data indicating the size and shape of the artificial nail to be formed.
  • the modeling information associated with the shape information of the artificial nail includes at least modeling data applied to the optical modeling, information specifying a 3D printer used for optical modeling based on the modeling data, and a photocurable composition used for optical modeling. Contains identifying information. That is, designation of modeling conditions can be used for modeling information.
  • the curing information associated with the shape information of the artificial nail includes at least information for identifying the photocuring device 40 used for photocuring, the wavelength of light used for photocuring, the irradiation time of light, and the curing environment (for example, temperature). And humidity). That is, designation of curing conditions can be used for the curing information. Further, the curing information is associated not only with the shape information of the artificial nail but also with the modeling information associated with the shape information of the artificial nail.
  • the database 60 includes evaluation information of the manufactured artificial nail 12, and the evaluation information is associated with the shape information, modeling information, and curing information of the artificial nail.
  • the evaluation information includes at least post-curing data and information indicating a contracted state as a difference between the modeling data of the modeling information associated with the shape data and the post-curing data.
  • the information indicating the contraction state includes a contraction amount (or contraction rate may be sufficient) generated in the artificial nail 12 and a shape change (for example, a change in warpage).
  • the shape information of the artificial nail may include customer information for requesting the manufacture of the artificial nail 10, and the database 60 can be identified by identifying the person wearing the artificial nail formed by the customer information. Artificial nails can be manufactured based on stored customer information.
  • the modeling information may include an environmental state (for example, temperature and humidity) when the artificial nail is modeled.
  • an environmental state for example, temperature and humidity
  • the curing rate or the like changes depending on the environmental state (for example, temperature and humidity).
  • the environmental conditions for example, temperature and humidity
  • the modeling design system 20 functions as a learning unit to acquire each of the shape information, modeling information, curing information, and evaluation information of the artificial nail, and the shape information, modeling information, curing information, and evaluation information of the artificial nail Each of them is stored in the database 60 in association with each other, and the database 60 is constructed and updated.
  • the modeling design system 20 functions as a prediction unit, the modeling information and the curing information are set, so that the contraction state is predicted, and the modeling data is set so that the data after curing is the same as the shape data.
  • an arbitrarily set initial value for example, default value
  • average shape information about the fingernail for example, model data
  • Average data or reference data the evaluation result when modeling with the modeling information and the curing information as a reference may be used.
  • a photocurable composition is used as an optical modeling material.
  • the photocurable composition applied to the present embodiment is not particularly limited as long as it can be used for stereolithography, but it does not have a hydroxyl group and a carboxy group in one molecule described above, and includes two pieces.
  • a (meth) acrylic monomer hereinafter referred to as (meth) which is at least one selected from di (meth) acrylic monomers having an aromatic ring and two (meth) acryloyloxy groups and has a weight average molecular weight of 400 to 800.
  • Acrylic monomer (X) at least one selected from (meth) acrylic monomers having at least one ring structure in one molecule and one (meth) acryloyloxy group, and having a weight average molecular weight.
  • the wavelength of light (for example, laser light) applied to the optical modeling in the 3D printer 38 and the wavelength of light (for example, laser light) applied to the photocuring in the photocuring device 40 are matched to the photopolymerization initiator. Preferably the wavelength is applied.
  • the shape information of the artificial nail 10 to be formed is acquired.
  • the shape information for example, when there is a sample of the artificial nail 10 to be formed (for example, a hand of a person having an actual nail), the sample is mounted on the 3D scanner 36 and the nail surface is obtained.
  • the shape is read three-dimensionally (ie, three-dimensionally).
  • a three-dimensional image of the sample is obtained, and the shape data 0 of the artificial nail 10 can be constructed from the three-dimensional image of the sample.
  • Such a three-dimensional image may be input to the modeling design system 20 via a dedicated communication line network or a public communication line network.
  • the shape information of the artificial nail 10 preferably includes customer information and information related to the finger to which the artificial nail 10 is applied. Also, assuming that one artificial nail 10 is set as one set on the assumption that it is attached to each finger of both left and right hands of one person, for example, for each of the ten artificial nails 10, Information for specifying the finger to be worn is also acquired. As an example, the modeling design system 20 will be described on the assumption that ten artificial nails 10 (that is, artificial nails to be attached to each nail of a human right and left finger) are manufactured as one set.
  • the photocurable composition used for manufacturing the artificial nail 10 is designated, in step 100, the photocurable composition to be designated (for example, the content of the photocurable composition, the ratio of the content, the photocurable composition).
  • the product name of the product may be accepted.
  • these designations are accepted in step 100.
  • shape data is generated based on the acquired shape information of the artificial nail 10.
  • shape data for example, a three-dimensional image of a sample.
  • a contraction state generated in the artificial nail 12 when the artificial nail 12 obtained by photo-curing and photo-curing is manufactured is predicted.
  • prediction information for example, a database
  • the contraction state is read from (or predicted).
  • the unspecified condition is set as the 3D printer 38 connected to the modeling design system 20 and the light. Set according to the curing device 40.
  • environment information for example, temperature and humidity
  • the environmental information is detected by the environmental sensors 42 and 44, and the contracted state is predicted including the detected environmental information.
  • modeling data is generated by correcting the shape data based on the predicted contracted state.
  • FIG. 5 an image of a modeled object that is optically modeled represented by modeling data is shown in a perspective view.
  • modeling data is generated so that the two units 70 ⁇ / b> L and 70 ⁇ / b> R are optically modeled separately for each of the left and right hands.
  • the units 70L and 70R artificial nails 72A, 72B, 72C, 72D and 72E from the artificial nail 72A on the thumb side to the artificial nail 72E on the little finger side are arranged.
  • a 3D printer 38 to which the SLA method is applied is used.
  • a substantially rectangular flat plate-like base 74 is provided on the platform side of the 3D printer 38, and five bases 76 are provided on the base 74.
  • the artificial nails 72A to 72E are set to be formed on the gantry 76. Further, the artificial nails 72A to 72E are arranged so that the side opposite to the fingertip side is in contact with the gantry 76.
  • the base 74 is provided with an ID 78 as an identification code for specifying the artificial claws 72A to 72E.
  • ID 78 any code that can identify the artificial claws 72A to 72E in each of the units 70L and 70R can be applied.
  • the ID 78 is different between the units 70L and 70R, and is set so that the units 70L and 70R can be clearly identified as a set (that is, one set).
  • an alphabetical array corresponding to the customer name is applied as an example of ID78.
  • ID78L including a sign indicating that it corresponds to the nail of the left hand is applied as ID78 to the unit 70L, and the unit 70R corresponds to the nail of the right hand as ID78.
  • symbol which shows is applied.
  • the unit 70L includes an ID 78L including an arrow indicating an arrangement direction from the artificial nail 72A of the thumb to the artificial nail 72E of the little finger together with a reference L0 indicating the artificial nail 72A of the left thumb and a reference L4 indicating the artificial nail 72E of the little finger. Is to be formed.
  • the unit 70R includes an arrow indicating the arrangement direction from the artificial nail 72A of the thumb to the artificial nail 72E of the little finger, together with the symbol R0 indicating the artificial nail 72A of the left thumb and the symbol R4 indicating the artificial nail 72E of the little finger.
  • Including ID78R is formed.
  • the three-dimensional data file (for example, STL file) of modeling data formed in this way includes shape data of each artificial nail as modeling data corrected based on the prediction information.
  • data is generated by the 3D printer 38 so as to be optically modeled from the base 74 side.
  • each set of units 70L and 70R is a composite data in which data is arranged so that optical modeling is performed side by side on one platform.
  • An STL file is generated.
  • the process proceeds to step 108 and the optical modeling process is performed.
  • a photocurable composition set under modeling conditions is used in the 3D printer 38. Thereby, the optical modeling thing by which the photocurable composition was laminated
  • stacked in layered form (for example, layered form of 100 micrometers in thickness) is obtained.
  • each set of artificial nails is formed on each frame 76 of the base 74, and one or a plurality of sets are stereolithographically formed.
  • the modeling design system 20 detects the environmental conditions (for example, environmental temperature and environmental humidity) of the installation environment of the 3D printer 38 at the time of modeling by the environmental sensor 42 and stores the detected environmental conditions in the database 60 for prediction. Include in information.
  • the time required for the optical modeling in the 3D printer 38 is the vertical movement time of the platform and the irradiation time of light (for example, laser light) at each movement position.
  • the platform of the 3D printer 38 is of a size capable of optical modeling of 16 sets, even if the time required for optical modeling of 2 sets of artificial nails is 60 minutes, 16 sets, which is 8 times the 2 sets The time required for the optical modeling of the minute artificial nail is about 120 minutes, which is twice as long.
  • Each set is assigned ID 78 to the units 70L and 70R. For this reason, even if a plurality of sets are optically modeled in parallel, each of the optically modeled artificial nails can be specified without making a mistake.
  • the manufacturing process of the artificial nail to which the modeling design system 20 applies includes a cleaning process 86.
  • An uncured liquid that is, a liquid photocurable composition
  • the cleaning step 86 uncured liquid remaining in each of the optically shaped objects (that is, the units 70L and 70R) without being scraped off at this time is removed.
  • the cleaning step 86 is performed on the artificial nail removed from the platform (that is, the artificial nail unit attached to the base 74 via the mount 76).
  • an ultrasonic cleaner using ethanol (EtOH), isopropyl alcohol (IPA) or the like as a cleaning liquid is used.
  • step 110 the photocuring process is performed using the photocuring device 40 on the artificial nail units 70 ⁇ / b> L and 70 ⁇ / b> R that have been cleaned.
  • the photocuring process is executed with light having a wavelength specified by the curing conditions (for example, laser light), light intensity, and light irradiation time.
  • claw 12 which optically modeled the artificial nail
  • the modeling design system 20 stores the installation environment of the photocuring device 40 acquired by the environment sensor 44 in the database 60 as prediction information associated with the shape information of the artificial nail 10.
  • each of the units 70L and 70R of the artificial nail 12 after being cured is mounted on the 3D scanner 36 and read, so that the three-dimensional data of each of the artificial nails 12 formed in the units 70L and 70R is read.
  • the artificial nail 12 with respect to the artificial nail 10 is evaluated by comparing the post-curing data and the shape data for each artificial nail 12.
  • the dimensions (for example, length, width, thickness, volume, etc.) and the outer shape (for example, warpage in the length direction and width direction) of the artificial nail 12 indicated by the post-curing data are the artificial nail. Is compared to 10, if each artificial nail 12 matches or can be considered to match the artificial nail 10 (that is, within an allowable error range), it is evaluated as good.
  • a positive determination is made at step 116.
  • step 116 If an affirmative determination is made in step 116, the process proceeds to step 118 and the post-curing data of the artificial nail 12 is stored in the database 60 in association with the shape information of the artificial nail 10. At this time, the data is stored in the database 60 together with the shrinkage information including the shrinkage state of the post-curing data with respect to the modeling data of the artificial nail 10.
  • any artificial nail 12 when at least one of the size and shape of the artificial nail 12 indicated by the post-curing data is different from the artificial nail 10 indicated by the shape data (for example, artificial nail 10, when one of the size and shape of the artificial nail 12 exceeds a preset error range), it is evaluated as defective and a negative determination is made in step 116. If a negative determination is made in step 116, the routine proceeds to step 120.
  • a difference for example, shrinkage amount or shrinkage rate, degree of warpage
  • shape data or shape information
  • modeling data or modeling information
  • step 104 the shape data of the artificial nail 10 is corrected (or recorrected) based on the updated prediction information to generate modeling data, and the artificial nail 10 is remade.
  • each unit 70L, 70R is provided with an ID 78 that can identify each other, so that the artificial nail can be remanufactured in units. .
  • the manufactured artificial nail 12 is evaluated as good, the manufactured artificial nail 12 is delivered (or commercialized) as the artificial nail 10.
  • the modeling design system 20 when generating modeling data from the shape data of the artificial nail 10, the shrinkage state after curing is predicted, and modeling data is generated based on the prediction result. For this reason, the artificial nail
  • the prediction information used for prediction includes a photocurable composition based on stereolithography, modeling information according to modeling conditions, and curing information according to curing conditions, not only a contracted state for each optical modeling.
  • the shrinkage state after photocuring can be predicted with high accuracy.
  • the prediction information includes customer information for specifying the artificial nail 10, so that when a similar artificial nail is requested (or requested), the requested artificial nail 10 is It can be manufactured easily and with high accuracy.
  • the modeling design system 20 acquires post-curing data, and updates (or learns) the prediction information by associating the shrinkage information including the acquired post-curing data with the shape information. As the number increases, the shrinkage state after photocuring can be predicted with higher accuracy, and the artificial nail 10 can be manufactured with higher accuracy. In addition, the modeling design system 20 manufactures a large number of artificial nails 12 because the artificial nail 10 for one person is set as one set and the artificial nail 10 and each artificial nail 10 in the set can be specified. It can be made easy and it can be clarified which of the artificial nails 10 each of the artificial nails 12 corresponds to.
  • the modeling design system 20 has the processing function with respect to the shape acquisition process 80, the modeling process 84, the hardening process 88, and the evaluation process 90, it is not restricted to this.
  • a computer for control may be provided in the shape acquisition process 80, the modeling process 84, the curing process 88, and the evaluation process 90.
  • the computer provided in each of the shape acquisition process 80, the modeling process 84, the curing process 88, and the evaluation process 90 is capable of transmitting and receiving data via a dedicated communication network, a public communication network, or the like. It is preferably connected to the design system 20. Thereby, from the reception of the artificial nail 10 to be formed to the manufacture of the artificial nail 12 as the artificial nail 10 can be easily performed. And the artificial nail
  • Viscosity of photocurable composition The viscosity of the photocurable composition was measured with an E-type viscometer at 25 ° C. and 50 rpm.
  • the obtained photocurable composition was shaped into a size of 80 mm ⁇ 10 mm ⁇ thickness 4 mm using a 3D printer (Form2 LabForm 2) to obtain a shaped product.
  • the resulting model was irradiated with ultraviolet light having a wavelength of 365 nm under the condition of 5 J / cm 2 to be fully cured, thereby obtaining an optical model.
  • the bending strength and bending elastic modulus of the test piece were measured according to ISO 178 (or JIS K7171), respectively.
  • the bending strength is preferably 10 MPa or more, and more preferably 40 MPa or more.
  • the flexural modulus is preferably 400 MPa or more, and more preferably 1500 MPa or more.
  • the obtained photocurable resin composition had an outer diameter of 8 mm, an inner diameter of 7.5 mm (thickness of 0.5 mm), a circumference of 90 °, and a length of 15 mm.
  • An optically shaped article was obtained by shaping into a size and irradiating with ultraviolet rays having a wavelength of 365 nm under the condition of 5 J / cm 2 for main curing.
  • artificial nail 1 Whether or not the resulting shaped object (hereinafter referred to as “artificial nail 1”) was placed under a metal cube having a height of 50 mm, a width of 50 mm, and a height of 50 mm, and after applying a load of 20 kg weight from above, it was cracked. It was confirmed visually. A total of 5 artificial nails 1 were evaluated. “A” indicates that the shape is maintained without breaking 5 pieces, “B” indicates that the shape is maintained without breaking 2 to 4 pieces, and 1 piece is broken from 0 pieces. The shape retaining the shape was designated as “C”.
  • the obtained photocurable resin composition was measured using a 3D printer (Form2 LabForm 2) with an outer diameter of 8 mm, an inner diameter of 7 mm (however, a thickness of 1.0 mm), a circumference of 90 °, and a length of 15 mm. Then, it was irradiated with ultraviolet rays having a wavelength of 365 nm under the condition of 5 J / cm 2 to be fully cured, thereby obtaining an optically shaped article.
  • artificial nail 2 Whether or not the resulting modeled object (hereinafter referred to as “artificial nail 2”) was cracked after being placed under a metal cube having a height of 50 mm, a width of 50 mm, and a height of 50 mm, and a load of 20 kg was applied from the top. It was confirmed visually. A total of 5 artificial nails 2 were evaluated. “A” indicates that the shape is maintained without breaking 5 pieces, “B” indicates that the shape is maintained without breaking 2 to 4 pieces, and 0 to 1 breaks. The shape retaining the shape was designated as “C”.
  • Tg glass transition temperature of stereolithography
  • DMS differential scanning calorimeter
  • each (meth) acrylic monomer (X) is as follows.
  • ABE-300, A-BPE-4, and A-BPE-10 are acrylic monomers manufactured by Shin-Nakamura Chemical Co., Ltd.
  • BP-4PA is an acrylic monomer manufactured by Kyoeisha Chemical Co., Ltd.
  • BP-2EM is a methacrylic monomer manufactured by Kyoeisha Chemical Co., Ltd.
  • each (meth) acrylic monomer (D) is as follows.
  • PO-A, POB-A, M-600A and 4EG-A are acrylic monomers manufactured by Kyoeisha Chemical Co., Ltd.
  • PO is a methacrylic monomer manufactured by Kyoeisha Chemical Co., Ltd.
  • A-LEN- 10 and APG-200 are made by Shin-Nakamura Chemical Co., Ltd.
  • THFA and AIB are made by Osaka Organic Chemical Co., Ltd.
  • FA511AS is made by Hitachi Chemical Co., Ltd.
  • CHDMMA is made by Nippon Kasei Co., Ltd. .
  • Irg819 is “Irgacure819” (acylphosphine oxide compound) manufactured by BASF
  • Irg184 is “Irgacure184” (alkylphenone compound) manufactured by BASF
  • TPO is manufactured by BASF.
  • Irgacure TPO acylphosphine oxide compound

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Abstract

L'invention concerne une composition photodurcissable destinée à être utilisée dans la mise en forme optique, contenant un monomère (méth)acrylique (X) qui a un poids moléculaire moyen en poids de 400 à 800 et est au moins un élément choisi parmi des monomères di(méth)acryliques ayant, par molécule, deux cycles aromatiques et deux groupes (méth)acryloyloxy mais n'ayant pas un groupe hydroxyle ou un groupe carboxyle, un monomère (méth)acrylique (D) qui a un poids moléculaire moyen en poids de 130 à 350 et est au moins un monomère choisi parmi des monomères (méth)acryliques ayant au moins un cycle aromatique et un groupe (méth)acryloyloxy par molécule, et un initiateur de photopolymérisation; un ongle artificiel; un procédé de génération de données de mise en forme d'un ongle artificiel; un procédé de production d'un ongle artificiel; un système de production d'un ongle artificiel; et un système de conception de mise en forme.
PCT/JP2018/013492 2017-03-29 2018-03-29 Composition photodurcissable, ongle artificiel, procédé de génération de données de mise en forme, procédé de production d'ongle artificiel, et système de production d'ongle artificiel WO2018181833A1 (fr)

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SG11201908868U SG11201908868UA (en) 2017-03-29 2018-03-29 Photocurable composition, artificial nail, method for generating shaping data, method for producing artificial nail, and system for producing artificial nail
CN201880020005.7A CN110446729B (zh) 2017-03-29 2018-03-29 光固化性组合物、人造指甲、造型数据的生成方法、人造指甲的制造方法及人造指甲的制造系统
KR1020197028326A KR102271174B1 (ko) 2017-03-29 2018-03-29 광경화성 조성물, 인공손톱, 조형 데이터의 생성 방법, 인공손톱의 제조 방법 및 인공손톱의 제조 시스템
JP2019510201A JP6854339B2 (ja) 2017-03-29 2018-03-29 光硬化性組成物、人工爪、造形データの生成方法、人工爪の製造方法及び人工爪の製造システム

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JP2022530116A (ja) * 2019-04-26 2022-06-27 キヤノン株式会社 光硬化性組成物
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WO2021162007A1 (fr) * 2020-02-10 2021-08-19 クラレノリタケデンタル株式会社 Composition de résine pour stéréolithographie
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JP7543755B2 (ja) 2020-07-23 2024-09-03 セイコーエプソン株式会社 機械学習装置
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