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WO1997036738A1 - Method and apparatus for glueing disc elements together - Google Patents

Method and apparatus for glueing disc elements together Download PDF

Info

Publication number
WO1997036738A1
WO1997036738A1 PCT/SE1997/000559 SE9700559W WO9736738A1 WO 1997036738 A1 WO1997036738 A1 WO 1997036738A1 SE 9700559 W SE9700559 W SE 9700559W WO 9736738 A1 WO9736738 A1 WO 9736738A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc elements
disc
adhesive
pressure chamber
transparent
Prior art date
Application number
PCT/SE1997/000559
Other languages
French (fr)
Inventor
Ove ÖHMAN
Lars Bering
Original Assignee
Toolex Alpha Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toolex Alpha Ab filed Critical Toolex Alpha Ab
Priority to AU25258/97A priority Critical patent/AU2525897A/en
Publication of WO1997036738A1 publication Critical patent/WO1997036738A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
    • B29C65/1406—Ultraviolet [UV] 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1448—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
    • B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1496—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of masks
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/324—Avoiding burr formation
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B29C66/3452—Making complete joints by combining partial joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0888—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds
    • B29C35/0894—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using transparant moulds provided with masks or diaphragms
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention relates to a method for glueing together thin disc elements, especially substrates for digital audio, video or computer discs, such as compact discs or digital video discs.
  • two substrate sics of polycarbonate with a thickness of 0.6 mm are normally glued together, with the information layer(s) adjacent to the layer of adhesive joining the discs.
  • the adhesive is applied to one of the discs by means of a printing process, for example screen printing, whereafter the discs are brought together.
  • a printing process for example screen printing
  • This method does not waste the adhesive and the application can be carried out very rapidly.
  • One purpose of the present invention is to suggest a glueing method which prevents the occurrence of excess adhesive and air enclosures in the adhesive layer between the discs.
  • the process according to the invention is characterized by the following steps: a) applying an adhesive to one side of a first disc element, b) applying a second disc element centered and aligned with the adhesive coat element, c) that the disc elements are pressed together in a press unit, and d) that a thin adhesive layer formed by compression between the disc elements is cured.
  • the curing of the adhesive layer can be effected in the press unit and/or at a location outside it, for example by irradiating the adhesive layer with ultraviolet light.
  • a radially outer annular edge area of the disc elements are subjected to UV light during the com ⁇ pression phase of the disc element, whereby the adhseive is immediately cured at the outer and inner peripheral areas, thereby effectively preventing adhesive from leaking out from the gap between the disc elements.
  • the present invention also relates to a device for glueing together thin disc elements, especially substrates for digital audio, video or computer discs, such as compact discs or digital video discs.
  • the device is characterized by a pressure chamber housing comprising; firstly, a bottom plate supporting one side of the disc elements which are laid centered and coinciding on top of each other, secondly, a flexible pressure membrane, arranged to be able to lie in contact against the other side of the disc elements, thirdly, a cover which, together with the membrane defines a pressure chamber, and fourthly, means for pressurizing the pressure chamber with a pressure medium.
  • the cover or the bottom plate is made transparent to permit UV irradiation of the adhesive layer between the disc elements which have been pressed together.
  • This device provides an effectively coordinated glueing together and curing of the disc elements without any problem with excess adhesive and air enclosures.
  • Figure 1 shows schematically a cross-section through a pressing device for glueing together two disc elements according to a first embodiment of the invention, in a phase immediately prior to pressing together;
  • Figure 2 shows schematically a second embodiment of the device according to the invention.
  • FIG. 10 generally designates a pressing unit intended for glueing together two relatively thin (0.6 mm thick) disc substrates 12 of polycarbonate for digital so-called DVDs.
  • the press unit 10 comprises a bottom plate 14. a pressure chamber wall 16, a cover 18 and a flexible pressure membrane 20 fixed in the wall 16.
  • the cover 18 and the membrane 20 are made transparent for ultraviolet light.
  • a pressure chamber 22 designed to be pressurized with compressed air for example via an inlet 24.
  • the diaphragm or screen 26 for UV light is associated with the press unit 10. It can be integrated with the press unit 10 or with a UV light source (not shown). The diaphragm 26 can provide desired screening off of UV light directed towards the press unit 10 when curing an adhesive layer between the disc substrates 12.
  • the device in Figure 1 is intended to be used in the following manner.
  • This adhesive application phase can be carried out either in a separate step outside the press unit or in the same.
  • the cover 18 is thereafter put in place and an external compressed air source (not shown) is connected, whereupon compressed air is fed into the pressure chamber 22 via the inlet 24 to exert a suitably adapted pressure on the flexible membrane 20 for the desired compression of the disc substrates 12 so that the adhesive 20 is pressed out towards an outer peripheral edge 30 of the substrates 12 and in towards an inner edge 32 or to an annular groove (not shown) located somewhat radially outwards from said edge 32.
  • This annular groove is normal in CDs. Direcdy after the compression phase, when a uniform, homogeneous and air enclosure free adhesive layer is formed between the disc substrates 12, the adhesive layer is subjected to UV light via the transparent cover 18 in the membrane 20 as shown by the arrows A in Figure 1 for curing of the adhesive layer. It is, however, an advantage during the compression phase to allow a portion of the adhesive curing UV light to irradiate the outer and inner adhesive layer limiting edge areas 30, 32 of the disc substrates 12. so that the adhesive layer is thereby rapidly cured at these edge areas to prevent leakage of adhesive when the discs are pressed together.
  • This edge irradiation of the adhesive layer with UV light is indicated with the arrows B in Figure 1 and can be achieved by the diaphragm 26 blocking off further UV light A until the edge areas of the adhesive layer have been cured, whereafter the diaphragm 26 can be opened or removed to UV irradiate the rest of the adhesive layer.
  • the disc substrates 12 can then be removed from the press unit 10 and possibly be after cured in another location if so required.
  • the glueing process can then be repea ⁇ ted.
  • FIG. 2 shows an alternative embodiment of the press unit 10 according to the invention.
  • the difference in principle is only that the bottom plate 12 in this case is transparent and that the UV rays A, B come from below, and the flexible membrane 20 can be made in a material which is not penetrable by UV light, since it is on the side of the disc substrate 12 remote from the UV source.
  • the invention is not limited to the embodiments described above. Rather, it can be varied within the scope of the following claims.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The invention relates to a method and a device for glueing together disc elements (12). An adhesive (28) is applied between two disc elements (12) and they are pressed together by means of a flexible membrane (20) in a press unit (10). The adhesive layer formed between the disc elements (12) is cured, for example by means of UV light in a press unit via a transparent cover (18) or a transparent bottom plate (14).

Description

Method and apparatus for glueing disc elements together
The present invention relates to a method for glueing together thin disc elements, especially substrates for digital audio, video or computer discs, such as compact discs or digital video discs.
When producing certain types of data storage discs, for example so-called digital video discs, with one or more layers of information, two substrate sics of polycarbonate with a thickness of 0.6 mm are normally glued together, with the information layer(s) adjacent to the layer of adhesive joining the discs.
For this purpose there has previously been suggested that a method whereby a string of adhesive is applied at the centre of one of the disc substrates, whereafter the other disc substrate is placed concentrically over it and they are together subjected to a rapid rotation whereupon the adhesive is spread radially outwards over the facing surfaces of the disc substrates pulling these together. This process is rapid but requires a great excess of adhesive to function satisfactorily. This method can most closely be characterized as so-called "spincoating" of a protec¬ tive coating layer of a compact disc, and requires completely flat substrate discs or flat holders during the subsequent curing.
In another suggested method of glueing, the adhesive is applied to one of the discs by means of a printing process, for example screen printing, whereafter the discs are brought together. This method does not waste the adhesive and the application can be carried out very rapidly. However, there is a certain risk that air enclosures will form when the discs are brought together and there is a risk of a risk for breakdown of the printing system should the screen printing blanket rupture. One purpose of the present invention is to suggest a glueing method which prevents the occurrence of excess adhesive and air enclosures in the adhesive layer between the discs.
For this purpose, the process according to the invention is characterized by the following steps: a) applying an adhesive to one side of a first disc element, b) applying a second disc element centered and aligned with the adhesive coat element, c) that the disc elements are pressed together in a press unit, and d) that a thin adhesive layer formed by compression between the disc elements is cured.
By carefully dosing and applying an adhesive of suitable viscosity, it is possible to avoid the troublesome removal of excess adhesive, and this, in combination with a suitable compression pressure and curing, prevents the occurrence of air enclosures between the disc elements.
The curing of the adhesive layer can be effected in the press unit and/or at a location outside it, for example by irradiating the adhesive layer with ultraviolet light.
According to a particularly preferred embodiment of the method according to the invention, a radially outer annular edge area of the disc elements, and preferably also a radially inner area of the same, are subjected to UV light during the com¬ pression phase of the disc element, whereby the adhseive is immediately cured at the outer and inner peripheral areas, thereby effectively preventing adhesive from leaking out from the gap between the disc elements. The present invention also relates to a device for glueing together thin disc elements, especially substrates for digital audio, video or computer discs, such as compact discs or digital video discs. The device is characterized by a pressure chamber housing comprising; firstly, a bottom plate supporting one side of the disc elements which are laid centered and coinciding on top of each other, secondly, a flexible pressure membrane, arranged to be able to lie in contact against the other side of the disc elements, thirdly, a cover which, together with the membrane defines a pressure chamber, and fourthly, means for pressurizing the pressure chamber with a pressure medium.
In a suitable embodiment, the cover or the bottom plate is made transparent to permit UV irradiation of the adhesive layer between the disc elements which have been pressed together. This device provides an effectively coordinated glueing together and curing of the disc elements without any problem with excess adhesive and air enclosures.
Additional characteristics of the device according to the invention are disclosed in the dependent claims.
The invention will be described in more detail below with reference to the accompaying drawing in which:
Figure 1 shows schematically a cross-section through a pressing device for glueing together two disc elements according to a first embodiment of the invention, in a phase immediately prior to pressing together; and
Figure 2 shows schematically a second embodiment of the device according to the invention.
In Figure 1. 10 generally designates a pressing unit intended for glueing together two relatively thin (0.6 mm thick) disc substrates 12 of polycarbonate for digital so-called DVDs. The press unit 10 comprises a bottom plate 14. a pressure chamber wall 16, a cover 18 and a flexible pressure membrane 20 fixed in the wall 16. The cover 18 and the membrane 20 are made transparent for ultraviolet light. Between the cover 18 and the membrane 20 there is defined a pressure chamber 22 designed to be pressurized with compressed air for example via an inlet 24.
The diaphragm or screen 26 for UV light is associated with the press unit 10. It can be integrated with the press unit 10 or with a UV light source (not shown). The diaphragm 26 can provide desired screening off of UV light directed towards the press unit 10 when curing an adhesive layer between the disc substrates 12.
The device in Figure 1 is intended to be used in the following manner.
A well-defined amount of adhseive 28, for example an adhesive of epoxy type, is applied on top of the lower disc substrate 12 in a ring shape, whereafter the upper disc substrate 12 is applied centered over the lower substrate 12. This adhesive application phase can be carried out either in a separate step outside the press unit or in the same. The cover 18 is thereafter put in place and an external compressed air source (not shown) is connected, whereupon compressed air is fed into the pressure chamber 22 via the inlet 24 to exert a suitably adapted pressure on the flexible membrane 20 for the desired compression of the disc substrates 12 so that the adhesive 20 is pressed out towards an outer peripheral edge 30 of the substrates 12 and in towards an inner edge 32 or to an annular groove (not shown) located somewhat radially outwards from said edge 32. This annular groove is normal in CDs. Direcdy after the compression phase, when a uniform, homogeneous and air enclosure free adhesive layer is formed between the disc substrates 12, the adhesive layer is subjected to UV light via the transparent cover 18 in the membrane 20 as shown by the arrows A in Figure 1 for curing of the adhesive layer. It is, however, an advantage during the compression phase to allow a portion of the adhesive curing UV light to irradiate the outer and inner adhesive layer limiting edge areas 30, 32 of the disc substrates 12. so that the adhesive layer is thereby rapidly cured at these edge areas to prevent leakage of adhesive when the discs are pressed together. This edge irradiation of the adhesive layer with UV light is indicated with the arrows B in Figure 1 and can be achieved by the diaphragm 26 blocking off further UV light A until the edge areas of the adhesive layer have been cured, whereafter the diaphragm 26 can be opened or removed to UV irradiate the rest of the adhesive layer. The disc substrates 12 can then be removed from the press unit 10 and possibly be after cured in another location if so required. The glueing process can then be repea¬ ted.
Figure 2 shows an alternative embodiment of the press unit 10 according to the invention. The difference in principle is only that the bottom plate 12 in this case is transparent and that the UV rays A, B come from below, and the flexible membrane 20 can be made in a material which is not penetrable by UV light, since it is on the side of the disc substrate 12 remote from the UV source.
Otherwise the working principle can be identical to that described in connection with Figure 1.
The invention is not limited to the embodiments described above. Rather, it can be varied within the scope of the following claims. For example it is possible within the scope of the invention thanks to the thinness of the disc substrates 12 in combination with an easily flowable, low viscosity adhesive, to get it to flow out to a large extent itself and with the aid of the capillary force to fill out most of the space between the disc substrates, so that only a relatively small compres- sion pressure is required to be exerted by the press unit 10 on the disc substrates
12 and the adhesive.

Claims

Claims
1. Method for glueing together thin disc elements (12), especially substrates for digital audio, video or computer discs, such as compact disc or digital video discs, characterized by the following steps: a) applying an adhesive (28) to one side of a first disc element (12), b) applying a second disc element (12) centered and aligned with the adhesive coat element (12), c) pressing the disc elements (12) together in a press unit (10), and d) curing a thin adhesive layer formed by compression between the disc elements (12).
2. Method according to Claim 1 , characterized in that the adhesive layer is cured in the press unit (10) by irradiation of the layer by ultraviolet light.
3. Method according to Claim 1 or 2, characterized in that a radially outer, annular edge area (30) of the disc elements (12) is irradiated with ultraviolet light during the compression phase of the disc elements.
4. Method according to one of Claims 1-3, characterized in that a radially inner area (32) of the disc elements (12) is irradiated with ultraviolet light during the compression phase of the disc elements.
5. Device for glueing together thin disc elements (12), especially substrates for digital audio, video and computer discs, such as compact disc or digital video discs, characterized by a pressure chamber housing (10) comprising firstly a bottom plate (14) supporting one side of the disc elements (12) which are laid centered and coinciding on top of each other, secondly a flexible pressure membrane (20), arranged to be able to lie in contact against the other side of the disc elements (12), thirdly a cover (18) which, together with the membrane (26) defines a pressure chamber (22), and fourthly means (24) for pressurizing the pressure chamber (22) with a pressure medium.
6. Device according to Claim 5, characterized in that the cover (18), or alterna¬ tively the bottom plate (14) is made transparent to permit UV irradiation of the adhesive layer between the disc elements (12) pressed together.
7. Device according to Claim 6, in which the cover (18) is UV-transparent, characterized in that the membrane (20) is UV-transparent.
8. Device according to one of Claims 1-6, characterized in that the membrane (20) is anchored in a side wall (16) of the pressure chamber housing (10).
9. Device according to one of Claims 6-8, characterized in that that side of the pressure chamber housing (10) which has a transparent cover (18) or alternatively a transparent bottom plate (14) is coordinated with a diaphragm means (14) for bringing off ultraviolet light directed towards the disc elements.
PCT/SE1997/000559 1996-04-01 1997-04-01 Method and apparatus for glueing disc elements together WO1997036738A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25258/97A AU2525897A (en) 1996-04-01 1997-04-01 Method and apparatus for glueing disc elements together

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9601262A SE506347C2 (en) 1996-04-01 1996-04-01 Method and apparatus for bonding substrates to data discs
SE9601262-0 1996-04-01

Publications (1)

Publication Number Publication Date
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SE (1) SE506347C2 (en)
WO (1) WO1997036738A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998054227A3 (en) * 1997-05-27 1999-03-11 Koninkl Philips Electronics Nv Device for curing an adhesive between two layers of an information carrier
WO1999043481A1 (en) 1998-02-27 1999-09-02 Odme International B.V. Method and device for heat treatment of a disc
US6086795A (en) * 1997-10-29 2000-07-11 Ciba Specialty Chemicals Corp. Adhesive compositions
US6098272A (en) * 1998-05-19 2000-08-08 First Light Technology, Inc. System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk
US6103039A (en) * 1997-11-12 2000-08-15 First Light Technology, Inc. System and method for thermally manipulating a combination of a top and bottom substrate before a curing operation
US6106657A (en) * 1998-05-19 2000-08-22 First Light Technology, Inc. System and method for dispensing a resin between substrates of a bonded storage disk
US6214412B1 (en) 1998-05-19 2001-04-10 First Light Technologies, Inc. System and method for distributing a resin disposed between a top substrate and a bottom substrate
US6221454B1 (en) 1998-01-30 2001-04-24 3M Innovative Properties Company Bonded optical disks and a method and an apparatus for producing the same
US6254809B1 (en) 1998-05-19 2001-07-03 Steag Hamatech, Inc. System and method for curing a resin disposed between a top and bottom substrate with thermal management
US6352612B1 (en) 1998-05-19 2002-03-05 Steag Hamatech, Inc. System for forming bonded storage disks with low power light assembly
WO2002053357A1 (en) * 2001-01-08 2002-07-11 Steag Hamatech Ag Method and device for assembling substrates
DE10100427A1 (en) * 2001-01-08 2002-07-18 Steag Hamatech Ag Method and device for joining substrates
WO2003081583A1 (en) * 2002-03-25 2003-10-02 Steag Hamatech Ag Production of dvd cards and other discs of noncircular shape
WO2010069599A1 (en) * 2008-12-19 2010-06-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for laser beam joining

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ORBIT SEARCH SERVICE, File WPAT, Accession Number 89-342881/47, (MATSUSHITA ELEC IND KK.); & JP,A,01 253 846, 11-10-89 (8947). *
ORBIT SEARCH SERVICE, File WPAT, Accession Number 97-170864/16, (PIONEER ELECTRONIC CORP et al.); & JP,A,09 035 335, 07-02-97 (9716). *
ORBIT SEARCH SERVICE, File WPAT. Accession Number 86-262103/40, (RICOH KK.); JP,A,61 190 738, 25-08-86 (8640). *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998054227A3 (en) * 1997-05-27 1999-03-11 Koninkl Philips Electronics Nv Device for curing an adhesive between two layers of an information carrier
US6086795A (en) * 1997-10-29 2000-07-11 Ciba Specialty Chemicals Corp. Adhesive compositions
US6355129B1 (en) 1997-11-12 2002-03-12 Steag Hamatech, Inc. System and method for thermally manipulating a combination of a top and bottom substrate before a curing operation
US6103039A (en) * 1997-11-12 2000-08-15 First Light Technology, Inc. System and method for thermally manipulating a combination of a top and bottom substrate before a curing operation
US6221454B1 (en) 1998-01-30 2001-04-24 3M Innovative Properties Company Bonded optical disks and a method and an apparatus for producing the same
WO1999039337A3 (en) * 1998-01-30 2002-01-24 Minnesota Mining & Mfg Bonded optical disks and a method and an apparatus for producing the same
WO1999043481A1 (en) 1998-02-27 1999-09-02 Odme International B.V. Method and device for heat treatment of a disc
US6352612B1 (en) 1998-05-19 2002-03-05 Steag Hamatech, Inc. System for forming bonded storage disks with low power light assembly
US6254809B1 (en) 1998-05-19 2001-07-03 Steag Hamatech, Inc. System and method for curing a resin disposed between a top and bottom substrate with thermal management
US6214412B1 (en) 1998-05-19 2001-04-10 First Light Technologies, Inc. System and method for distributing a resin disposed between a top substrate and a bottom substrate
US6106657A (en) * 1998-05-19 2000-08-22 First Light Technology, Inc. System and method for dispensing a resin between substrates of a bonded storage disk
US6098272A (en) * 1998-05-19 2000-08-08 First Light Technology, Inc. System for maintaining concentricity of a combination of a top and bottom substrate during the assembly of a bonded storage disk
US6511616B1 (en) 1998-05-19 2003-01-28 Steag Hamatech, Inc. System and method for curing a resin disposed between a top and bottom substrate with thermal management
WO2002053357A1 (en) * 2001-01-08 2002-07-11 Steag Hamatech Ag Method and device for assembling substrates
DE10100427A1 (en) * 2001-01-08 2002-07-18 Steag Hamatech Ag Method and device for joining substrates
US6953514B2 (en) 2001-01-08 2005-10-11 Steag Hamatech Ag Method and device for assembling substrates
US7008502B2 (en) 2001-01-08 2006-03-07 Steag Hamatech Ag Method and apparatus for joining substrates
WO2003081583A1 (en) * 2002-03-25 2003-10-02 Steag Hamatech Ag Production of dvd cards and other discs of noncircular shape
WO2010069599A1 (en) * 2008-12-19 2010-06-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device and method for laser beam joining
DE102008063975A1 (en) * 2008-12-19 2010-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for laser beam joining

Also Published As

Publication number Publication date
AU2525897A (en) 1997-10-22
SE9601262D0 (en) 1996-04-01
SE506347C2 (en) 1997-12-08
SE9601262L (en) 1997-10-02

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