WO1993016864A1 - Biaxially oriented, laminated polyester film - Google Patents
Biaxially oriented, laminated polyester film Download PDFInfo
- Publication number
- WO1993016864A1 WO1993016864A1 PCT/JP1993/000228 JP9300228W WO9316864A1 WO 1993016864 A1 WO1993016864 A1 WO 1993016864A1 JP 9300228 W JP9300228 W JP 9300228W WO 9316864 A1 WO9316864 A1 WO 9316864A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- polyester
- biaxially stretched
- laminated
- stretched laminated
- Prior art date
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- 229920006267 polyester film Polymers 0.000 title claims abstract description 43
- 229920000728 polyester Polymers 0.000 claims abstract description 122
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- 239000010408 film Substances 0.000 claims description 117
- 239000010410 layer Substances 0.000 claims description 43
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 19
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
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- 238000012546 transfer Methods 0.000 claims description 5
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- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 claims description 4
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- SENMPMXZMGNQAG-UHFFFAOYSA-N 3,4-dihydro-2,5-benzodioxocine-1,6-dione Chemical group O=C1OCCOC(=O)C2=CC=CC=C12 SENMPMXZMGNQAG-UHFFFAOYSA-N 0.000 claims 1
- 239000002313 adhesive film Substances 0.000 claims 1
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 43
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- 238000012360 testing method Methods 0.000 description 23
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- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
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- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- IUJAMGNYPWYUPM-UHFFFAOYSA-N hentriacontane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC IUJAMGNYPWYUPM-UHFFFAOYSA-N 0.000 description 1
- RNDKQAUABLKWAV-UHFFFAOYSA-N hexan-1-ol;2-methylpropan-2-ol Chemical compound CC(C)(C)O.CCCCCCO RNDKQAUABLKWAV-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- MYWUZJCMWCOHBA-VIFPVBQESA-N methamphetamine Chemical compound CN[C@@H](C)CC1=CC=CC=C1 MYWUZJCMWCOHBA-VIFPVBQESA-N 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 239000012184 mineral wax Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- BAPROVDXKNPHAM-UHFFFAOYSA-N n-(2-aminoethyl)-3-(3,5-ditert-butyl-4-hydroxyphenyl)propanamide Chemical compound CC(C)(C)C1=CC(CCC(=O)NCCN)=CC(C(C)(C)C)=C1O BAPROVDXKNPHAM-UHFFFAOYSA-N 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 239000012169 petroleum derived wax Substances 0.000 description 1
- 235000019381 petroleum wax Nutrition 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 235000015277 pork Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001612 separation test Methods 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 235000019871 vegetable fat Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/04—Treatment by energy or chemical effects using liquids, gas or steam
- B32B2310/0445—Treatment by energy or chemical effects using liquids, gas or steam using gas or flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/14—Corona, ionisation, electrical discharge, plasma treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/91—Product with molecular orientation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
Definitions
- the present invention relates to a biaxially stretched laminated polyester film having flexibility, and more particularly to properties such as impact resistance, pinhole resistance, and workability.
- Highly flexible poly terrier film is highly flexible.
- PET Polyethylene film
- Biaxially stretched film has excellent mechanical strength, thermal properties, humidity properties, and other properties. Due to its many excellent characteristics, it is used in a wide range of fields such as industrial materials, magnetic recording materials, and packaging materials.
- nylon biaxially stretched films are often used, and PET film is a hard film that is the reverse of its toughness. Therefore, they are rarely used as main components.
- packaging materials especially liquid packaging materials (such as lettuce packaging), impact resistance expressed by dropping strength, rubbing resistance, and their low-temperature properties Is required, and many nipple biaxially stretched films are used.
- Liquid packaging is performed by laminating a biaxially stretched film with a sealant layer such as polyethylene or polypropylene, and filling it with liquid.
- a sealant layer such as polyethylene or polypropylene
- the bag may burst or the pinhole may open to prevent liquid leakage. Whether pinholes do not occur when the bag is rubbed by the strength and the external force of repetition ⁇
- the emphasis is placed on the rub resistance, and the nylon biaxially stretched film has these characteristics. O excellent
- nylon films also have characteristic problems.
- the essential properties of nylon films which have a high moisture absorption coefficient and a high humidity expansion coefficient, are
- the flatness deteriorates when stored in a roll form, the vapor deposition processing is difficult, and the adhesive strength of the printing / laminate layer decreases when absorbing moisture.
- the PET film has a very low moisture absorption coefficient and low humidity expansion coefficient, and there is no problem with humidity characteristics.
- Hon-kiki is made by adding flexibility to the film, and at the same time, combining the humidity characteristics and processability of the PET film.
- a single-layer film having flexibility as disclosed in Japanese Patent Application Laid-Open Nos. 4122162/1990 and 321930/1990 is cited.
- the introduction of the aliphatic dicarboxylic acid component deteriorates stretchability, lowers flatness, and lowers surface energy. There was a problem that would arise.
- the present invention provides a polyester film having impact resistance, pinhole resistance, such as biaxially stretched nylon film, and addition property, such as PET film. Eyes Target.
- the biaxially stretched laminated polyester film of the present invention which meets this purpose, has a polyester film having a glass transition temperature of 50 ° C. or less, and is formed on both sides of a layer composed of the polyester A. It consists of a biaxially stretched laminated polyester finolem with a Young's modulus of l OZSO kg Z mm 2 , in which layers made of tellurium B are not laminated.
- Polyester in the present invention is an acid component which includes terephthalic acid, isoftanolic acid, and phthalanolic acid.
- Acid ' naphthalene dizolebonic acid, diphenylene diolenoic acid, diphenylsolephonic dicanolebonic acid, diphenyl ether phenolic diolenoic acid, benzene Aromatic dicarboxylic acid components such as zofenondicarboxylic acid and their ester-forming derivatives, oxalic acid, malonic acid, kononic acid, gnore Tallic acid, adipic acid, pimelic acid, suberic acid, azelic acid, cenosuccinic acid, dexadionic acid, dodecadionic acid, brush Phosphoric acid, tetradecadioic acid, pentadecadioic acid, hexadecadioic acid, heptad Cardioic acid, o
- the glycol component is not particularly limited, but may be at least one selected from aliphatic, alicyclic, and aromatic diols having 10 or less carbon atoms. Ingredients can be used favorably.
- polyether glycols, polyethers such as polymethylene glycols, polyamides, polyamides, etc. May be copolymerized.
- the polyester A of the present invention has a glass transition temperature of 50 ° C. or lower, preferably 45 ° C. or lower, and more preferably, in terms of flexibility and pinhole resistance. Or 40 and below.
- Polyester A is exemplified by the above-mentioned polyesters. Ethylene terephthalate is mainly used in terms of stretchability, heat resistance, chemical resistance, and low cost. Polyester is preferred.
- the acid component and the glycol component are at least 50 mol% each, more preferably at least 70 monol%, and the terephthalic acid component and the ethylene glycol component are at least 70 mol%.
- at least 80 mol%, preferably at least 90 mol% of the glycol component is ethylene in view of the raw material recovery during polymerization and heat resistance. Desirably, it is a alcohol component.
- the aliphatic dicarboxylic acid component used in the polyester A mainly composed of ethylene terephthalate is 1 to 50 moles of the acid component. %, Preferably 5 to 30 mol%, of adipic acid, sebacic acid, dodecadioic acid and their ester-forming properties Derivatives, dimer acids obtained by dimerizing unsaturated fatty acids having 10 to 25 carbon atoms, and hydrogenated products thereof, and ester-forming derivatives thereof (hereinafter referred to as dimer monoacid components). Can be used favorably. In particular, it is desirable to contain a long-chain aliphatic dicarboxylic acid component having an alkylene group having 10 or more carbon atoms in an amount of 1 to 40 mol% from the viewpoint of pinhole resistance and heat resistance.
- a long-i-aliphatic dicarboxylic acid component having a branched structure is preferred.
- Dyma-acid component is preferred.
- Dimer acid usually has an unsaturated bond remaining, but has a bromine number measured by ASTM-D-115-9 of 0.05 to 10 (gZl0g), preferably 0.1 to 5 (g / 100 g) is preferred because of its excellent heat resistance and flexibility.
- the copolymerization amount of the dimer acid is 1 to 40 mol%, preferably 5 to 20 mol%, based on the acid component.
- the flexible polyester of the present invention which is mainly composed of an ester film
- a mixed polyester the melting point, glass transition point, and crystallinity are reduced, and in the biaxially stretched film manufacturing process, sticking to the cooling drum during extrusion casting and stretching rolls Sticking to the clip in the center or the clip in the tenter may occur easily, which may reduce the productivity. Further, when the copolymerization increases, the biaxial stretching property of polyester A alone becomes poor.
- polyester B examples include the above-mentioned polyesters, and are not particularly limited. However, in terms of film forming property and processability, glass transition mainly composed of ethylene terephthalate is used. It is desirable that the temperature be at least 45 ° C, preferably at least 50_ ° C, to be a polyester.
- Polyester B is preferably 60% by mole or more of each of the acid component and the glycol component, and more preferably 8.0% by mole or more of terephthalic acid and ethyl acetate. Desirably, it is a long-cohol component, and in particular, at least 85 mol%, and preferably at least 90 mol%, of the glycol component in terms of stretchability and recoverability. It is desirable that it be a chicken alcohol component.
- the amount of the polymerization component is 1 to 40 mol%, preferably 5 to 20 mol%.
- the polyester film of the present invention has a Young's modulus of 10 to 250 kg / mm 2, but balances the winding flexibility of the finale and the winding. In terms of appearance, it is preferably from 40 to ZSO kg Z mm 2 , more preferably from 50 to 200 kg / mm 2 .
- the material is biaxially oriented in view of the change with time of the Young's modulus, the operating temperature range, productivity, and workability.
- a value of at least 0.05, preferably at least 0.01, and particularly preferably from 0.2 to 0.14 is preferred because of good workability.
- the polyester is laminated on both sides of the flexible polyester and the thickness ratio is not particularly limited, but preferably the thickness of the layer composed of the polyester A is preferable. 1: 1 to 50: 1, preferably 2: 1 to 25: 1, in the ratio of the sum of the total thickness and the thickness of the layer made of polyester B (total A layer: total B layer) If the proportion of the layer B is too small, the effect of improving the biaxial stretchability is reduced, which is not preferable. If the proportion of the layer B is large, the film becomes flexible. , Impact resistance, etc. are impaired Not good for.
- the composition and the like of the polyester B laminated on both sides of the flexible polyester A may be slightly different from each other.
- two kinds of polymers A 1, A 2, and polyester B are used as the flexible polyester A.
- a 1 ZA 2 ZA 1 ZB five layers may be laminated, or two kinds of polymers Al and A 2 may be mixed together, such as BZ (A 1 + A 2) / B. You may do it.
- the piercing strength defined below is not less than 1 O kg Zmm, preferably not less than 15 kg Zmm, and more preferably not less than 2 O kg Zmm. It is desirable because the durability of the bag is improved when it is made into a sealed bag.
- the puncture strength refers to a sapphire needle with a tip angle of 60 degrees and a tip radius of 0.1 mm by stretching the film so that it does not come loose on a ring with a diameter of 40.mm.
- the needle was pierced at the speed of 50 mmZ using the center of the circle, and the force when the needle penetrated was converted to a film thickness of 1 mm.
- the piercing strength when the size of the tip R is 0.5 mm is 5 Ok kg Zmm or more, since the solid material is excellent in durability against other contact materials after bagging.
- the bag From the viewpoint of durability, it is preferable that the gelbotest value is 20 or less, and more preferably 10 or less.
- the gelbottest value refers to the number of pinholes when the gelbo is performed 100 times in the gelbo flex test described below.If this value is small, It is preferable not only to show that it is difficult to open the pinhole by repeated rubbing, but also to improve the dropping strength.
- the addition of inert particles to the layer B composed of the polyester B is effective in improving the slipperiness.
- inert particles inorganic compounds such as silicon oxide, aluminum oxide, zirconium oxide, canoleum carbonate, magnesium carbonate, or cross-linked particles are used. Examples include insoluble organic compounds such as styrene, cross-linked divinylbenzene, benzoguanamine, and silicone.
- colloidal silica, ground silica, cross-linked polystyrene, and silicone are preferred in terms of transparency.
- the particle size and amount of the particles are not particularly limited, but the average particle size is from 0.01 to 10 m, preferably from 0.1 to 5 zm, in terms of lubricity and transparency.
- the addition amount is 0.0001 to 50% by weight, preferably 0.05 to 1% by weight.
- the average particle size is more than the thickness of Polyester B layer in order to further improve the slipperiness. It is desirable to use particles with a large diameter.
- the average particle diameter is equivalent to 50% by volume of the particle equivalent sphere diameter by observing the particles in the film using an electron microscope. The diameter obtained was defined as the average particle diameter.
- the thickness of the film of the present invention is not particularly limited, it is effectively used at 1 to 1000 m, preferably 5 to 500 m.
- Polyester A and Polyester B are melt extruded by separate extruders, and two types of polymers are sheeted using a feed block or a manifold composite die. Multi-extrusion to form BZAZB and quench cast.
- the cast sheet obtained is manufactured by the usual sequential biaxial stretching film forming process in which longitudinal stretching, transverse stretching, and heat treatment are performed.In addition, simultaneous biaxial stretching is performed. Processes, tuber processes, etc. can also be employed.
- the stretching ratio and the heat treatment temperature are important.
- the piercing strength was affected by the draw ratio and the heat treatment temperature, and the draw ratio (longitudinal draw ratio ⁇ transverse draw ratio) was 5 to 25 times, and ⁇ or 6 to 20 times.
- the heat treatment temperature is preferably from 120 to 240 ° C, and more preferably from 130 to 230.
- the heat treatment temperature refers to a meta-crystal associated with thermal crystallization remaining as a heat history during heat treatment of the polyester, which is observed using a differential scanning calorimeter. It means the temperature of the melting peak of tall, and does not necessarily correspond to the heat treatment roll in the film formation or the ambient temperature in the orb.
- the flexible polyester film of the present invention contains additives such as an antistatic agent, a heat stabilizer, an antioxidant, a crystal nucleating agent, a weathering agent, an ultraviolet absorber, a pigment and a dye for the purpose of the present invention. It can be used to the extent that it is not damaged. In addition, surface asperity processing such as embossing and sand-matting, or surface treatment such as corona discharge treatment, plasma treatment, and alkali treatment are performed as necessary. Is also good. In addition, the flexible polyester film of the present invention has an easy-adhesion treatment agent, an antistatic agent, a steam / gas barrier agent (such as polyvinylidene chloride), a release agent, an adhesive, and an adhesive.
- additives such as an antistatic agent, a heat stabilizer, an antioxidant, a crystal nucleating agent, a weathering agent, an ultraviolet absorber, a pigment and a dye for the purpose of the present invention. It can be used to the extent that it is not damaged.
- Coatings such as chemicals, flame retardants, UV absorbers, matting agents, pigments, dyes, etc. may be used, aluminum, aluminum oxide, Metals such as silicon oxide and palladium and their compounds may be vacuum-deposited for purposes such as shading, water vapor, gas barrier, surface conductivity, and infrared reflection. The purpose and method are described above. It is not limited to.
- a metal or metal compound thin film on at least one side of at least one of the above-mentioned laminated polyester films.
- This thin film is preferably an aluminum thin film, or a transparent thin film made of aluminum or silicon oxide.
- These thin films can be formed by vapor deposition on at least one surface of at least one side of the flexible biaxially oriented polyester film. Since the vapor deposition is performed on a PET-based polyester phenol, much superior vapor deposition properties can be obtained as compared with the vapor deposition on a nylon film, and desired vapor deposition can be easily performed. By this thin film lamination, it is possible to have excellent gas barrier properties while securing the flexibility equivalent to that of a biaxially oriented niche film of a flexible polyester film. '
- the biaxially oriented polyester film 100 is preferred. It is preferable to set the heat shrinkage in C at 5% or less, since it is possible to effectively prevent wrinkles on the cooling can.
- PET copolymers with aliphatic dicarboxylic acids having an alkylene group having 4 to 8 carbon atoms are preferred.
- the polyethylene late can be treated with corona discharge or copolymerized with an aliphatic dicarboxylic acid having an alkylene group having 4 to 8 carbon atoms.
- PET and isophthalic acid copolymer PET are desirable.
- the heat treatment temperature is preferably 200 ° C. or more, and it is desirable to cool rapidly after heat fixing.
- the melting point of the polyester A be 10 or lower, and the polyester B can be obtained by using the polyesters B i and B 2 having different compositions and melting points. It may be laminated as in ⁇ ⁇ . Further, the melting point of the heat-sealable polyester is preferably 200 or less.
- the hydrophilic polyester include, for example, polybutylene terephthalate obtained by copolymerizing an isophthalic acid component with polybutylene terephthalate or polyethylene terephthalate.
- Such copolymers as those obtained by copolymerizing an isophthalic acid component with a latex latet may be mentioned, but the heat adhesive property of the heat-sealable polyesters is not high. There is no particular limitation as long as it is a good resin.
- the laminated resin layer is formed, for example, by laminating polyester and heat-sealable polyester by coextrusion to form a biaxial shaft. It is formed by heat treatment after postponement. By setting the heat treatment temperature to be higher than the melting point of the heat-sealable polyester and lower than the melting point of the polyester A, the heat-sealable polyester having the characteristics described above is obtained. A layer is formed.
- the thickness of the heat seal resin layer is 0.01 to 20 m, preferably 0.1 to 10 ⁇ m.
- the sealer is improved.- The lack of sealing force due to cleavage of the ordinary PET film is eliminated. .
- Et al is, Oite to the heating preparative sealable port Li Este Luffy Lum, the Young in g modulus at 1 0 0 ° C of the biaxially oriented port Li ester sulfide Lum 2 0 kg Z mm 2 or more, thermal contraction It is preferable to set the umbrella to 5% or less because it is possible to effectively prevent wrinkles from occurring on the cooling can.
- an ultraviolet absorber or a weathering agent When used in agricultural applications that require weather resistance, it is desirable to contain 5% by weight or less of an ultraviolet absorber or a weathering agent in order to combine transparency, weather resistance and flexibility.
- the UV absorber or weathering agent is not particularly limited, but in terms of heat resistance and transparency, UV absorbers such as benzophenone-based and triazole-based materials, titanium oxide, and zinc oxide. Which inorganic particles can be preferably used. Further, in terms of transparency, weather resistance, and cost, it is preferable to add more to the polyester B layer. The addition ratio is, for example, 10% by weight in the polyester B layer and triple in the polyester A. Volume%.
- an ultraviolet absorber By including 5% by weight or less of an ultraviolet absorber in the flexible polyester film as described above, it is possible to obtain the transparency and weather resistance required for an agricultural film. In addition, it is possible to provide the flexibility described above.With this flexibility, the workability can be improved, and the durability and the wind, which are not broken by the sea, can be improved. It absorbs the sloppy touch and can be given as much flexibility as possible.
- the heat shrinkage at 100 ° C. in at least one direction is at least 25%.
- the stretching ratio and the heat treatment temperature are important.
- the longitudinal stretching ratio is 3.5 times or more, preferably 4.0.
- the heat treatment temperature is preferably 150 ° C or lower, more preferably 100 ° C or lower, and further preferably 80 ° C or lower.
- the maximum value of the heat shrinkage stress is rather to preferred is 1 lkg Z mm 2 or less, rather then favored by al 1. O kg / mm 2 or less, rather than particularly preferred 0.8 kg Z mm 2 or less.
- the above polystyrene film has not only the flexibility of polyethylene but also a suitable heat shrinkage and low heat shrinkage stress. To prevent deformation of containers in shrink packaging used as it can.
- At least one side of the polyester film of the present invention should be provided with a resin coating, and on some layers a resin laminate layer. And are preferred.
- the resin coating layer for example, a polyvinylidene chloride layer is preferable, and as the resin laminate layer, an ethylene-vinyl alcohol copolymer layer is preferable. Further, an anchor layer may be provided between the gas layer and the film of the present invention.
- At least one side has a wetting tension of at least 40 dyne Z cm, preferably at least 45 dyne Z cm, and more preferably. It is desirable that the thickness be 50 dyne Z cm or more, since the adhesiveness is improved.
- a corona discharge treatment for example, a corona discharge treatment, a corona discharge treatment in a nitrogen atmosphere or a Z carbon dioxide gas atmosphere, a plasma treatment, a flame treatment, various solvent treatments and the like can be applied.
- Such surface treatment for imparting easy adhesion makes it possible to improve adhesion to printing inks, deposited layers of metals and metal compounds, and other resins while utilizing flexibility and mechanical properties. Wear.
- the photo resist cover By making the wetting tension of at least 36 dyne Z cm or less on at least one side, the photo resist cover, especially for photosensitive plate making, can be used as a canopy finolem. It can be suitably used for rum.
- Such a polyester phenolic nolem with such a lanyard Polyester having a specific gravity of 0.5 to 1.2 and having a cavity inside is also preferable in terms of low Young's modulus, high haze, and rough surface.
- a film having such a cavity for example, Japanese Patent Publication No. Sho 43-120913, Japanese Patent Publication No. Sho 60-309930, Japanese Patent Laid-open Publication No. Hei 2-294438, Japanese Patent Application Laid-Open No. HEI 3-120000: 27, a resin incompatible with a polyester such as the one disclosed in Japanese Unexamined Patent Publication No. 2-26739, for example, a polypropylene resin.
- Inactive particles such as pyrene, polystyrene, polymethylpentene, polyphenylene oxide, etc.
- inactive particles such as calcium carbonate Inorganic particles such as um, sulphate, titanium dioxide, etc., alone or in combination, are added to the polyester in an amount of 1 to 50% by weight, and then stretched for internal processing. It is possible to obtain a low-density polyester finolem with many voids.
- at least one side of the low specific gravity film may be thinly laminated with a polyester layer containing no or some internal voids. If the specific gravity of this film is less than 0.5, the wall will be easily opened at the time of separation, which is not preferable.If the specific gravity exceeds 1.2, the surface becomes rough. This is not desirable because properties such as haze and concealment cannot be imparted.
- the main component means that the weight ratio in the laminated composition is 50% or more, and preferably 60% or more.
- Wax compositions are various types of commercially available waxes such as petroleum waxes, vegetable waxes, mineral waxes, animal waxes, and low molecular weight. Polyolefins can be used, and are not particularly limited.
- Petroleum-based waxes and plant-based waxes can be used easily. Preferred in point. Petroleum-based waxes include Norafin wax, microcrystalline wax, and oxidized wax. The use of an oxide is particularly preferred from the viewpoint of protrusion formation. Vegetable waxes include candelilla wax, canolenow wax, wood roe, oligo wax, sugar cane roe and roe. Gin-modified waxes and the like are mentioned, but in the present invention, a composition comprising the following compounds is particularly preferred. That is, [rosin or disproportionated rosin or hydrogenated rosin ⁇ ⁇ / 8-substituted ethylene. ( ⁇ -substituent: carboxyl, ⁇ -substituent: hydrogen or methyl or carboxyl) Object ⁇ alkyl or alkenyl (each carbon number 1 ⁇
- Ester adduct of alcohol is preferred in terms of slipperiness and releasability. It is more preferable to use it in a mixed system. That is, by applying unidirectional stretching after the application of the above composition, fine elongated projections can be formed. Boxes dissolved, emulsified, or suspended in water are particularly preferred from the standpoint of stopping.
- the specific gravity of the petroleum-based / vegetable-based mixture is 1/0, preferably ⁇ 20, more preferably 30 / 70 to 70/30 is desirable.
- the use of a vegetable wax in an amount of 10% by weight or more is intended to provide lubricity at high temperatures, impart releasability, and uniform dispersibility when emulsified or suspended in water. This is because it is suitable for obtaining a good and uniform coating film.
- the reason why the oil-based wax is set to 10% by weight or more is that the lubricity due to the formation of projections on the coating film is good and the operability at the time of high-speed lamination is good. Yes.
- the oil-like substance is a liquid or paste-like oil at normal temperature, and examples thereof include vegetable oils, fats and oils, mineral oils, and synthetic lubricating oils.
- Flax oil is used as vegetable oil; coconut oil, safflower oil, soybean oil, cinnamon oil, sesame oil, corn oil, rapeseed oil, bran oil, cottonseed oil, and olive oil. Examples include Southern power oil, camellia oil, castor oil, peanut oil, palm oil and coconut oil.
- Fats and oils include beef tallow, pork oil, sheep oil, cocoa oil, and the like, and mineral oils include machine oil, insulating oil, evening oil, motor oil, and gear oil. Examples include oil, cutting oil, and liquid paraffin.
- Chemical as a synthetic lubricant Any material that satisfies the requirements described in the large dictionary (Kyoritsu Shuppansha) can be used arbitrarily. For example, olefin polymerized oil, gester oil, polyalkylene glycol, etc. Oil, silicone oil, etc. can be mentioned. Among these, mineral oils and synthetic lubricating oils having good running properties in the high pulse width region are preferable. These may be a mixed system.
- the oily substance in an amount of 1 to 100 parts by weight, preferably 3 to 50 parts by weight, based on 100 parts by weight of the wax-based composition.
- the amount of the oil-like substance is less than 1 part by weight, the separability in a high-temperature and high-humidity region tends to decrease.
- the amount exceeds 100 parts by weight the separability in a low-temperature and low-humidity region conversely decreases. Tend to. In the case of the above range, sticking does not occur under a wide range of temperature and humidity, and the separability is good, which is particularly preferable.
- additives can be used in the above composition in a range not to impair the effects of the present invention.
- antistatic agents heat-resistant agents, antioxidants, organic and inorganic particles, pigments, and the like can be used.
- additives such as dispersing aids, surfactants, preservatives, antifoaming agents, etc. are added to the paint for the purpose of improving dispersibility in water and improving coatability. Is also good.
- the thickness of the laminated film of the layer (laminated film) containing the wax-based composition as a main component is preferably not less than 0.05 m, and more preferably not less than 0.01 Hin. If the thickness of the laminated film is less than 0.05 m, sticking tends to occur.
- the present inventors formed the special projections described below on the surface of the layer to be laminated, thereby achieving extremely high sticking resistance, release property, mold release property, and removal property which could not be obtained conventionally. It was found that the layer was excellent in handleability and excellent in laminating property and adhesion to the photo resist surface. That is, in the present invention, the surface of the laminated film made of the above composition has 20 elongated projections having a ratio of 3 or more in the length direction and the width direction of not less than 20 Z 100 / I m 2 or more. Good, good.
- the main component is a wax-based composition or oil-like substance, which is different from the projections made of inorganic particles because it is a formed projection and becomes a molten state at high temperatures such as heating. As a result, extremely excellent releasability and releasability can be obtained.
- the surface wetting tension of the film of the present invention is preferably 36 dyne / cm or less, more preferably 32 dyne Zcm or less. This is to improve the separation from the photo resist.If the surface tension is other than this, the film may be deformed at the time of separation, or the photo resist surface may be damaged. This is because defects are likely to occur.
- the surface wetting tension can be controlled by surface coating.
- the haze of the film of the present invention is 10% or more, preferably in the range of 20 to 60%. This is because when the haze is less than 10%, the photo resist is photosensitized and deteriorated by ultraviolet rays, and the color of the canopy film is also colored. This is also to improve handling.
- the surface of the film should be 1 m or more, preferably 2 m or more. ⁇ 5 111 roughness density? . ⁇ 1 must be 10 pieces Zmm or more. l ⁇ m or more Roughness density PC-1 is 10 pieces or more Zmm, so that it can be separated smoothly from the photo-resist force without any unevenness. It does not damage the photo resist. If the surface density of PC-11 is less than 10 mm, the adhesive strength to the photo-resist is increased, and the separation property is deteriorated, resulting in deterioration of the photo-resist. It is not preferable because it makes a rippled wound.
- the photo resist in the core part is in an oxygen-deficient state. That is, it is not preferable, that is, a DFR in which a photoresist is applied to a biaxially stretched polyester film of a base material, and a cover film of the present invention is adhered to form a long roll in a roll shape.
- a DFR in which a photoresist is applied to a biaxially stretched polyester film of a base material, and a cover film of the present invention is adhered to form a long roll in a roll shape.
- an air layer that has entered a minute space formed between the photoresist, the cover film, and the biaxially stretched polyester film of the substrate and the cover film of the present invention. This prevents the photo-resist of the core from being in an oxygen-deficient state, thereby preventing self-crosslinking.
- the flexible polyester film of the present invention is suitably used for applications in which a general PET biaxially stretched film is used, and is not particularly limited, but is used for packaging materials, release materials, and transfer foils. , Electrical insulating materials, plate making sheets, adhesive sheets, agricultural house materials and other industrial materials, as well as films, sheets, metal foils, paper, woven fabrics, non-woven fabrics, foam materials, etc.
- nylon biaxially stretched film is used, which is suitable for use in fields where impact resistance and rubbing resistance are required, and low-temperature properties are required. More preferred. It is also possible to deal with aluminum vapor deposition and the use of water-based ink, which had problems with conventional nylon biaxially stretched films. Conventionally, PET films and nylon films were often used in a laminated form, but the film of the present invention has the characteristics of both films. For this reason, this can be replaced with a single finale.
- the measurement was performed using a differential scanning calorimeter DSC 2 (manufactured by Parkin Elma). 10 mg of the sample was melted and held at 280 ° C for 5 minutes under a nitrogen stream, and then quenched with liquid nitrogen. In the process of raising the temperature of the obtained sample at a rate of 10 minutes, the specific heat change based on the transition from the glass state to the rubber state is read, and this temperature is referred to as the glass transition temperature (T g). To melt the crystal The base endothermic peak temperature was taken as the melting point (Tm).
- the particles in the film are observed using an electron microscope, and the diameter equivalent to 50% by volume of the equivalent spherical diameter of the particle is taken as the average particle diameter.
- the dynamic friction coefficient d was measured according to ASTM-D-1894B-63.
- H r o o (%) H x i 0 0 / d
- H is the actual value of the haze (%)
- d is the film thickness (zm) of the haze measuring section.
- a film sample was set so that the ambient temperature was 5 ° C in the gelbo tester and the gelbo was repeated 100 times (280 mm x 180 mm) The number of pinholes was compared for each sample (the number of ink transmission points on filter paper was counted).
- a bag containing rice was prepared, and the durability of the bag was judged as follows based on the appearance of the bag after transporting 10 bags by car.
- the bag is free from defects such as holes and tears. : Slightly stretched A-class bags, but no problem in use. : B-class bag has defects such as holes or tears. : Class C (10) Dropping bag test-
- the film was stretched over a frame of 1 m square and the appearance of the film after the soil was dropped from above was observed, and the durability of the film was determined as follows.
- the surface roughness of the film was measured with a surface roughness meter.
- the measurement conditions are as follows, and the average value of 20 measurements is
- the measuring instrument used was SE-3E manufactured by Kosaka Laboratory.
- ⁇ No sound separation, but a defect occurs on the photo resist surface. Since the adhesive strength is 10 to 50 g Z cm.
- X The photo-resisting force of the surface or core of the DFR—partial cross-linking.
- Polyester A is supplied to a 90 mm ⁇ extruder
- Polyester B is supplied to a 40 mm ⁇ extruder.
- Polyester A is melt-extruded at 270 ° C
- Polyester B is melt-extruded at 280 ° C.
- Polyester BZ Polyester AZ Polyester B (Layer thickness ratio 1: 20: 1 )
- the sheet was expanded in the width direction in the mouthpiece, and was discharged in a sheet form with a slit force of 1.0 mm.
- the sheet was tightly cooled and solidified while applying an electrostatic charge on a casting drum kept at 25, and then 3.3 times at 70 ° C. with a stretching roll.
- Example 3 A mixture of 95 parts of Polyester A and 5 parts of Polyester B of Example 1 was used as the central layer, and Polyester B was used in the same manner as Example 1 except that it was the same as Example 1. Film formation was performed. The obtained film had good transparency as shown in Table 1, and had the same performance as that of Example 1.
- Example 5 Except that the polyester A of Example 1 was changed to 20 mol% sebacic acid copolymerized PET (Tm2 18, Tg 34 ° C) and the heat treatment temperature was set to 120. In the same manner as in Example 1, a film having a thickness of 15 m was obtained. As shown in Table 1, the characteristics of the obtained finolem were slightly worse in the stimulus strength and gelbo test, and were slightly inferior to both the bag test and the dropping test.
- the average particle diameter of the silicon oxide particles of Example 1 was 3.5 nm.
- the laminated thickness of the laminated sheet was 1: 10: 1, and the sheet was formed in the same manner as in Example 1. While applying static charge on the casting drum kept at ° C, it is cooled and solidified by close contact, and then it is stretched 3.4 times at 70 ° C with a stretching roll. The film was heat-treated at 80 ° C for 3.5 times at 222 ° C and heat-treated at 225 ° C for 5 seconds, and then stretched biaxially to a thickness of 15 m. An ester film was obtained.
- One surface of the obtained film was subjected to a corona discharge treatment, the surface tension was set to 54 dyne Z cm, and aluminum was vacuum-deposited. Since the film had a low moisture absorption, the degree of vacuum was sufficiently high and deposition was easy. Aluminum thin film thickness The thickness was about 150 nm, and even when a peeling test was performed using an adhesive tape, the adhesive did not separate and the adhesion was good. In addition, the water vapor transmission rate was 2.1 (g / m 2 -day • sheet), and the oxygen transmission rate was 1.8 (cc / m 2 -day * sheet), indicating good gas barrier properties.
- Example 1 the polyester B was prepared by copolymerizing PET with isophthalic acid (isophthalic acid component 25% by mole, Tg: 72 ° C, Tm: 1). 95 ° C), the thickness of the laminate was 1: 2: 1, and the melting temperature of Polyester B was 230 ° C. A film of 20 m was obtained. The seal strength of the obtained film (as shown in Table 2 was not high at 2.1 kkg / cm).
- terephthalic acid as a dicanolevonic acid component
- 20 mol% of hydrogenated dimer monoacid having 36 carbon atoms 20 mol% of hydrogenated dimer monoacid having 36 carbon atoms
- ethylene glycol as a diol component 1 Copolymer Polyester A (Tm 210 ° C, Tg 1 ° C) having an intrinsic viscosity of 0.75 was obtained by a known method using 0,000 mol%.
- 90% by weight of terephthalic acid and 10% by mole of sebacic acid are used as the dicarboxylic acid component, and 100% by mole of ethylene glycol are used as the diol component.
- Silicon oxide having an average particle size of 4.2 / m was added so as to be 0.1% by weight, and a copolymer polyester 8 having an intrinsic viscosity of 0 • 70 was obtained by a known method. 3 ° 0: Tg 55 ° C).
- Polyester B is a benzophenone-based UV absorber. (Trade name "Mark LA”) was added and mixed at 3% by weight with respect to the polymer.
- Polyester A is fed to a 90 mm ⁇ extruder
- Polyester B is fed to a 40 mm ⁇ extruder.
- Polyester A is melt-extruded at 260 ° C
- Polyester B is melt extruded at 270 ° C.
- the film (heat treatment temperature: 185 ° C) was obtained.
- Table 3 shows the properties of the obtained film.
- a weather resistance test using a sunshine weather meter showed that the retention of elongation at break with respect to the initial value after 500 hours was 75%, indicating excellent weather resistance, and the puncture strength was low. The results were good, and the durability was also good.
- Example 1 the polyester A was hydrogenated dimer acid 15 mol% copolymerized PET (Tm22.C, Tg17 ° C), and the lamination ratio was 1: 1 0: 1.
- Example 1 except that the longitudinal stretching ratio was 4.2 times, the transverse stretching ratio was 3 times, and the heat treatment temperature was 40 ° C. Film formation was carried out in the same manner as in the above. As shown in Table 4, the thermal shrinkage of the obtained film at 100 ° C was 30% Z41% (length and width), and the maximum value of the shrinkage stress was 0.8 kg. / mm was good and low.
- Example 1 The film obtained in Example 1 was subjected to a corona discharge treatment to a surface tension of 54 dyne / cm, and a polyvinylidene chloride (PVDC) solution was applied to the film using a barco overnight. It was applied. After the application, it was dried in a hot air oven at 100 ° C for 1 minute and heat-treated at 150 ° C for 1 minute.
- the coating layer thickness is 8 im, and the oxygen permeability is 1.0 (c. Czm 2 ⁇ day ⁇ sheet), indicating a high barrier property.
- a synthetic rubber adhesive (BPS-430, manufactured by Toyo Ink Co., Ltd.) was applied to a 25 m film having a surface force of 54 dyne / cm obtained in the same manner as in Example 5.
- BPS-430 manufactured by Toyo Ink Co., Ltd.
- Example 1 The film obtained in Example 1 was subjected to a coating process (coating of a release layer, a protective layer, and an adhesive layer) to obtain a transfer foil.
- a coating process coating of a release layer, a protective layer, and an adhesive layer
- the appearance of the foil after transferring the obtained film to a metal mold was extremely clean.
- Polyester A is fed to a 250 mm ⁇ extruder
- Polyester B is fed to a 60 in m ⁇ extruder.
- Polyester A melts at 260 ° C and Polyester B melts at 285 ° C, and becomes Polyester BZ Polyester AZ Polyester B (lamination thickness ratio 1: 30 : 1).
- After laminating into three layers It expanded in the width direction in the mouth and was discharged in a sheet form with a slit force of 1.0 mm. While applying an electrostatic charge to the sheet, the sheet was cooled and solidified on a casting drum kept at 25 ° C, and then stretched at 60 ° C at 60 ° C.
- a nonionic surfactant an ester of phosphoric acid (butoxyshethylated), an ammonium oleate, 2 — Amino 2 — Add 1 part by weight of methyl propanol, stir vigorously in water, and make an aqueous dispersion with a total solid content ratio of 1.0% by weight using an ultrasonic disperser. did.
- the release agent coating surface of the film thus obtained was evaluated as a photo resist plate for DFR photosensitive plate making.
- the film quality characteristics and the evaluation as a photolithographic photolithography cover finolem were evaluated. As shown in Table 5, the film was rough. On the surface, there were few foreign matter protrusions such as gels and fish eyes, and it was excellent in separation from the photo resist. In addition, the air circulation of the DFR was good, and there was no self-crosslinking due to lack of oxygen in the photoresist in the core.
- the single-layer film of PET is stretched at a temperature of 100, a longitudinal stretching ratio of 3.5 times, a transverse stretching temperature of 110, a transverse stretching ratio of 3.4 times, and a heat treatment temperature of 220 ° C.
- the film was formed as described above. As shown in Table 1, the obtained film has a high Young's modulus, low piercing strength, and low gelbo characteristics, so that good results were obtained for both the bag test and the drop test. There was no.
- Polyester A is assumed to be a 10 mol% phenolic copolymer of polyethylene terephthalate (Tm233 ° (: Tg 55 ° C)). Except that the lamination ratio was 2: 1: 2, when the film was formed in the same manner as in Example 1, as shown in Table 1, the piercing strength was reduced and the gelbo characteristics were also low. Good results were not obtained for both bag tests.
- Polyester A was used as PET (Tm-218 ° C, Tg34 ° C) with 20 mol% of phosphoric acid, and the stretching temperature was 50 ° C-220. A heat treatment was performed at 7 ° C for 7 seconds to obtain a single-layer film. As shown in Table 1, the obtained film had poor piercing strength and rubo characteristics, and was a force that did not give good results in both the bag test and the dropping test.
- Example 7 Same as Example 6 except that PET was used in place of Polyester A in Example 6, the melting temperature was 280 ° C, the longitudinal stretching temperature was 90, and the horizontal stretching temperature was 100. I got a film. Table 2 shows the seal strength of the obtained film. As shown, the value was as small as 1.0 (kg / cm). Comparative Example 7
- Comparative Example 1 a benzofenone-based ultraviolet absorber (trade name “Mark LA”) was added to PET by 15% ⁇ by weight with respect to the polymer to obtain 75 m of finolem.
- the obtained film had low durability as shown in Table 3.
- Comparative Example 1 the longitudinal stretch ratio was set to 4.1 times, the transverse stretch ratio was set to 3 times, and the heat treatment temperature was set to 50.When the film was obtained, the heat as shown in Table 4 was obtained.
- the shrinkage ratio was 28% X 31 "% (length and width), and the maximum value of the shrinkage stress was as high as 1.2 kg Z mm 2. When packaging the container, deformation occurred.
- An adhesive tape was obtained in the same manner as in Example 11 using the PET film of Comparative Example 1.
- the obtained film was spirally wound around a conductor having a diameter of 2 ⁇ m, and when the film was repeatedly bent, the tape was separated and the wound shape deteriorated.
- Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Polyester AP (B 3S / B i5 ) / (T iS / D 15 ) PET / S 10 PET / S 20 Melting point O 1 7 5 2 3 3 2 1 8 Glass transition temperature (° C)-7 5 5 3 4 Polyester BPETP ET
- Thickness (m) 1 5 2 5 1 5 1 5 Thickness composition ratio (B / A / B) 2 / 1/2
- PET polyethylene terephthalate rate
- PETS Sebacic acid copolymer polyethylene terephthalate
- Example 7 Comparative Example 7 fe-5 ( ⁇ m) 7 5 7 5 Young's modulus (kg / mm 2 ) 87/80 3 8 0/39 1 Breaking strength (kg / mm 2 ) 1 1/1 0 2 6 / 2 5 Elongation at break (kg / band 2 ) 1 5 1/1 5 0 1 1 0/1 0 9 Thrust (kg / mm) 1 9 (7 1) 8.5 (4 1) Elongation retention (%) 75 7 3 Haze (%) • 3.2.5.4 Endurance AC Table 4 t te
- the biaxially stretched laminated polyester film of the present invention can be used for liquid packaging, rice bag packaging, and other solid materials in which a niche-ni-biaxially stretched film has been used. Or, it can only be suitably used in applications where flexibility and pinhole resistance are required in applications where polyester films such as PET films have been used. Instead, it can be used for the various applications described above.
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- Engineering & Computer Science (AREA)
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19930904345 EP0581970B1 (en) | 1992-02-25 | 1993-02-24 | Biaxially oriented, laminated polyester film |
DE69320565T DE69320565T2 (de) | 1992-02-25 | 1993-02-24 | Bioxial orientierte und laminierte polyester film |
KR1019930703222A KR100261755B1 (ko) | 1992-02-25 | 1993-02-24 | 이축연신 적층 폴리에스테르필름 |
HK98111431A HK1010704A1 (en) | 1992-02-25 | 1998-10-21 | Biaxially oriented laminated polyester film |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7322892 | 1992-02-25 | ||
JP4/73228 | 1992-02-25 | ||
JP4/311452 | 1992-10-26 | ||
JP31145292 | 1992-10-26 | ||
JP4/311451 | 1992-10-26 | ||
JP31145192 | 1992-10-26 | ||
JP4/328678 | 1992-11-13 | ||
JP32867892 | 1992-11-13 |
Publications (1)
Publication Number | Publication Date |
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WO1993016864A1 true WO1993016864A1 (en) | 1993-09-02 |
Family
ID=27465561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1993/000228 WO1993016864A1 (en) | 1992-02-25 | 1993-02-24 | Biaxially oriented, laminated polyester film |
Country Status (6)
Country | Link |
---|---|
US (1) | US5747174A (ja) |
EP (1) | EP0581970B1 (ja) |
KR (1) | KR100261755B1 (ja) |
DE (1) | DE69320565T2 (ja) |
HK (1) | HK1010704A1 (ja) |
WO (1) | WO1993016864A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100363869B1 (ko) * | 1998-09-24 | 2003-02-19 | 에스케이씨 주식회사 | 적층 폴리에스테르 필름의 제조방법 |
CN116499398A (zh) * | 2023-06-29 | 2023-07-28 | 天津大学 | 粗糙度传感器及粗糙度等级评估与三维评价装置与方法 |
Families Citing this family (82)
Publication number | Priority date | Publication date | Assignee | Title |
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US6623821B1 (en) | 1995-03-31 | 2003-09-23 | E. I. Du Pont De Nemours And Company | Heat-shrinkable, heat-sealable polyester film for packaging |
US6203874B1 (en) * | 1995-06-07 | 2001-03-20 | Kisokaseisangyou Co., Ltd | Copying sheet |
GB9617185D0 (en) * | 1996-08-15 | 1996-09-25 | Ici Plc | Polymeric film |
DE69722010T2 (de) | 1996-08-28 | 2004-04-01 | Unichema Chemie B.V. | Polyetherpolyol und verfahren zur herstellung von formbaren polyester daraus |
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- 1993-02-24 EP EP19930904345 patent/EP0581970B1/en not_active Expired - Lifetime
- 1993-02-24 KR KR1019930703222A patent/KR100261755B1/ko not_active Expired - Fee Related
- 1993-02-24 DE DE69320565T patent/DE69320565T2/de not_active Expired - Fee Related
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1997
- 1997-01-15 US US08/783,791 patent/US5747174A/en not_active Expired - Fee Related
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KR100363869B1 (ko) * | 1998-09-24 | 2003-02-19 | 에스케이씨 주식회사 | 적층 폴리에스테르 필름의 제조방법 |
CN116499398A (zh) * | 2023-06-29 | 2023-07-28 | 天津大学 | 粗糙度传感器及粗糙度等级评估与三维评价装置与方法 |
CN116499398B (zh) * | 2023-06-29 | 2023-09-05 | 天津大学 | 粗糙度传感器及粗糙度等级评估与三维评价装置与方法 |
Also Published As
Publication number | Publication date |
---|---|
DE69320565T2 (de) | 1999-04-08 |
KR100261755B1 (ko) | 2000-07-15 |
EP0581970B1 (en) | 1998-08-26 |
HK1010704A1 (en) | 1999-06-25 |
US5747174A (en) | 1998-05-05 |
EP0581970A1 (en) | 1994-02-09 |
DE69320565D1 (de) | 1998-10-01 |
EP0581970A4 (ja) | 1994-04-06 |
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