DE10241163A1 - Irradiating adhesive for bonding DVD blanks includes computer control of radial distribution of radiation intensity impinging on rotating blank - Google Patents
Irradiating adhesive for bonding DVD blanks includes computer control of radial distribution of radiation intensity impinging on rotating blank Download PDFInfo
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- DE10241163A1 DE10241163A1 DE10241163A DE10241163A DE10241163A1 DE 10241163 A1 DE10241163 A1 DE 10241163A1 DE 10241163 A DE10241163 A DE 10241163A DE 10241163 A DE10241163 A DE 10241163A DE 10241163 A1 DE10241163 A1 DE 10241163A1
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- blanks
- radiation
- blank
- adhesive
- edge
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Classifications
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- 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
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- 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
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- 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
- B29C65/1445—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 heating both sides of the joint
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- 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
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- 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
- B29C65/1464—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 making use of several radiators
- B29C65/1467—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 making use of several radiators at the same time, i.e. simultaneous welding
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- 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
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- 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
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- 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
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- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/0015—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid warp or curl
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- 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
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- 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
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- 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
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- 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
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- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
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- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
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- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
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- 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
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- 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
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
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- 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
- B32B2429/00—Carriers for sound or information
- B32B2429/02—Records or discs
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- 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
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Herstellen von optischen Speichermedien, wie DVDs (Digital Versatile Discs) und DV-Rs (Blue-Ray-Discs) insbesondere durch Verkleben von aufeinander liegenden Rohlingen mittels UV-härtbaren Klebern.The invention relates to a device and a method of manufacturing optical storage media such as DVDs (digital versatile discs) and DV-Rs (blue ray discs), in particular by gluing of blanks lying on top of each other using UV-curable adhesives.
Es ist bereits bekannt, DVD-Rohlinge
mittels eines UV-härtenden
Klebers zu verbinden. Der Kleber wird auf die DVD-Rohlinge, die
durch Spritzgießen
hergestellt wurden, mittels eines Verfahrens, wie es zum Beispiel
in der
Aus der EP-A2-1 059 344 ist bereits ein Verfahren zum Aushärten einer Klebstoffschicht zwischen zwei aufeinander liegenden DVD-Rohlingen durch UV-Bestrahlung bekannt, wobei die DVD-Rohlinge durch Härten des Klebers miteinander verbunden werden. Dieses Verfahrens soll insbesondere dann eingesetzt werden, wenn DVD-Rohlinge für UV-Licht schlecht durchlässig sind, wobei eine UV-Lichtquelle im Randbereich der DVD-Hälften und eine UV-Lichtquelle im Zentralbereich der DVD-Hälften vorgesehen sind. Die UV-Lichtquelle im Randbereich strahlt UV-Licht in den Kleber von der Seite ein. Die UV-Lichtquelle im Zentralbereich ist ein Lichtleiter, der in das Mittelloch der DVD-Rohlinge eingeführt wird und vom Zentrum der DVD-Rohlinge aus seitlich die Kleberschicht zwischen den DVD-Hälften bestrahlt. Auf diese Weise breitet sich UV-Licht parallel zur Ebene der DVD-Rohlinge in der Kleberschicht aus und härtet diese aus.From EP-A2-1 059 344 is already a method of curing an adhesive layer between two DVD blanks lying on top of each other UV radiation known the blank DVD by hardening of the adhesive are connected to each other. This procedure is intended be used especially when blank DVDs for UV light poorly permeable are, with a UV light source in the edge region of the DVD halves and one UV light source in Central area of the DVD halves are provided. The UV light source in the edge area, UV light shines into the adhesive from the side. The UV light source in the central area is a light guide that is in the Center hole of the blank DVD is introduced and from the center of the blank DVD the adhesive layer on the side between the DVD halves irradiated. In this way, UV light spreads parallel to the plane the blank DVD in the adhesive layer and hardens it.
Bei der Verbindung von DVD-Rohlingen
oder anderen Rohlingen für
optische Datenträger
besteht jedoch das Problem, daß die
fertig verklebten Scheiben nicht völlig eben sind, sondern die
verklebten Scheiben zum Rand hin einen über einem Toleranzwert hinausgehenden
Winkel
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Herstellen von optischen Datenträgern durch Verkleben zweier aufeinander liegender Rohlingen zur Verfügung zu stellen, wobei Verbiegungen des fertigen Datenträgers ausreichend vermieden werden und Energie eingespart wird.The invention has for its object a Device and a method for the production of optical data carriers To provide bonding of two blanks lying one on top of the other, bending of the finished data carrier is sufficiently avoided and energy is saved.
Die Aufgabe wird mit den Merkmalen der Patentansprüche gelöst.The task comes with the characteristics of claims solved.
Bei der Lösung geht die Erfindung von folgenden Grundgedanken aus.The solution proceeds from the invention following basic ideas.
Es ist mindestens eine Strahlungsquelle vorgesehen, um gesteuert, d.h., mit gleichbleibender oder variabler Intensität Energie in mindestens eine Oberfläche eines Rohlings einzustrahlen. Die Energie der Strahlung kann in der Oberfläche oder in der Grenzfläche des Rohlings zum anderen Rohling lokalisiert absorbiert werden und somit durch unterschiedliche Erwärmung der Rohlinge in seiner Oberfläche und in seiner Grenzfläche zu dem anderen Rohling Verbiegungen der Rohlinge (z. B. bedingt durch den Herstellungsprozeß) beseitigen bzw. unerwünschte Verbiegungen des fertigen optischen Datenträgers verhindern. Die Strahlung kann den jeweiligen Rohling durchdringen und im Grenzbereich zwischen den beiden Rohlingen eine Verbindung (Bonden) der Rohlinge durch Direktverbindung oder Aushärten eines eingebrachten Klebers bewirken.It is at least one source of radiation intended to be controlled, i.e., with constant or variable intensity To radiate energy into at least one surface of a blank. The energy of the radiation can be in the surface or in the interface of the Blanks to the other blank are absorbed locally and thus due to different heating of the blanks in its surface and in its interface bending of the blanks to the other blank (e.g. caused by the manufacturing process) eliminate or unwanted Prevent bending of the finished optical data carrier. The radiation can penetrate the respective blank and in the border area between the two blanks by bonding (bonding) the blanks Direct connection or curing of an introduced adhesive.
In einer bevorzugten erfindungsgemäßen Ausführungsform werden zwei miteinander zu verbindende Rohlinge (z. B. DVD-Hälften) nach einem bekannten Verfahren übereinander, im Mittelloch zentriert angeordnet und z. B. durch einen Greifer im Mittelloch gehalten. Sie können auch auf einem Dorn, der das Mittelloch durchdringt, abgesetzt werden. Die beiden Rohlinge können von der Oberseite, von der Unterseite und radial außen (Rand) bestrahlt werden, wobei durch die Halterung der Rohlinge eine entsprechende Bestrahlungsfreiheit gewährleistet sein muss.In a preferred embodiment according to the invention two blanks to be joined together (e.g. DVD halves) a known method on top of each other, centered in the center hole and z. B. by a gripper held in the center hole. You can also be placed on a mandrel that penetrates the center hole. The two blanks can from the top, from the bottom and radially outside (edge) be irradiated, with a corresponding by holding the blanks Guaranteed freedom from radiation have to be.
Eine bevorzugte erfindungsgemäße Vorrichtung sieht mindestens eine Strahlungsquelle, die in einer besonders bevorzugten Ausführungsform am Außenrand der Rohlinge angeordnet ist, und mindestens einen Spiegel vor, der oberhalb der Oberfläche einer der Rohlinge angeordnet ist. Die Strahlungsquelle bestrahlt sowohl den Rand des optischen Datenträgers parallel zu deren Grenzflächen als auch den Spiegel, der die Strahlung auf die Oberfläche des Rohlings reflektiert. Der Spiegel kann eben oder gekrümmt sein und in axialer und/oder radialer Richtung relativ zu den Oberflächen der Rohlinge gesteuert, z.B. entsprechend einem Rechnerprogramm, bewegbar sein, z.B. durch Kippen und/oder Bewegen senkrecht und/oder parallel relativ zu den Rohlingsoberflächen. Auf diese Weise ist die auf die Rohlingsoberfläche eingestrahlte Strahlungsintensität abhängig von der radialen Position auf der Rohlingsoberfläche gesteuert veränderbar. Die Strahlung dringt durch den Rohling hindurch bzw. vom Rand her in den Grenzflächenbereich zwischen den DVD-Hälften ein und härtet den Kleber aus, der sich zwischen den beiden Rohlingen befindet bzw. am Rand austritt. Die Strahlungsquelle ist bei UV-härtenden Klebern bevorzugt eine UV-Quelle.A preferred device according to the invention provides at least one radiation source, which in a particularly preferred embodiment is arranged on the outer edge of the blanks, and at least one mirror which is arranged above the surface of one of the blanks. The radiation source irradiates both the edge of the optical data carrier parallel to its interfaces and the mirror, which reflects the radiation onto the surface of the blank. The mirror can be flat or curved and controlled in the axial and / or radial direction relative to the surfaces of the blanks. For example, be movable according to a computer program, for example by tilting and / or moving vertically and / or parallel to the blank surfaces. In this way, the radiation intensity radiated onto the blank surface can be changed in a controlled manner depending on the radial position on the blank surface. The radiation penetrates through the blank or from the edge into the interface area between the DVD halves and hardens the adhesive that is located between the two blanks or emerges at the edge. In the case of UV-curing adhesives, the radiation source is preferably a UV source.
Durch Drehen der Rohlinge um die gemeinsame Achse A erfolgt die Bestrahlung der Rohlinge azimutal gleichmäßig.By turning the blanks around the common axis A, the blanks are irradiated azimuthally evenly.
Durch die Erfindung kann eine sehr gleichmäßige Verbindung der Rohlinge erreicht werden, da die Energiezufuhr zur Oberfläche und zum Grenzflächenbereich zwischen den beiden Rohlingen und zum Scheibenrand lokal gesteuert werden kann und eventuelle Verbiegungen der Rohlinge vor oder bei dem Verbindungsprozess beseitigt bzw. verhindert werden. Durch die Verwendung von Spiegeln kann die Energie der Strahlungsquelle optimal ausgenutzt und damit Energie eingespart werden; ferner wird die Lebensdauer der Strahlungsquelle erhöht.The invention can be a very even connection of the blanks can be achieved because the energy supply to the surface and to the interface area controlled locally between the two blanks and to the edge of the disc can be and possible bending of the blanks before or at the Connection process can be eliminated or prevented. By using it The energy of the radiation source can be optimally used by mirrors and so that energy can be saved; furthermore the lifespan of the Radiation source increased.
Im folgenden wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:The invention is explained below the drawings closer explained. Show it:
Vorteilhafterweise strahlt die Strahlungsquelle
Die Beeinflussung der Durchbiegung
funktioniert wie folgt. Das Material der DVD-Halbseiten des optischen Datenträgers, das
z.B. aus Polycarbonat oder einem anderen Material besteht, absorbiert Strahlung
R und wandelt diese in Wärme
um. Die Wärme
führt zur
thermisch bedingten Ausdehnung der Rohlinge
Durch einen Regelkreis (Rechnerprogramm) kann die Aufteilung der Strahlleistung auf die Ober- und Unterseite der Rohlinge so eingestellt werden, daß die Durchbiegung des fertig abgekühlten optischen Datenträgers in einem gewünschten Toleranzbereich liegt.Through a control loop (computer program) can the distribution of the beam power on the top and bottom of the Blanks are adjusted so that the deflection of the finished cooled optical disk in a desired one Tolerance range.
Da die Strahlerröhre
Es besteht auch die Möglichkeit, eine oder mehrere weitere Strahlungsquelle(n) mit entsprechenden Spiegelanordnungen am Umfang des Substratrandes gleichmäßig verteilt anzuordnen. Im Falle von z.B. zwei oder drei Strahlungsquellen/Spiegelanordnungen sind diese im Abstand von 180° bzw. 120° am Substratumfang angeordnet. Auf diese Weise wird die Gleichmäßigkeit der Energieverteilung und die Aushärtungsgeschwindigkeit des Klebers erhöht.There is also the possibility one or more further radiation source (s) with corresponding ones Mirror arrangements evenly distributed on the circumference of the substrate edge to arrange. In the case of e.g. two or three radiation sources / mirror arrangements are these at a distance of 180 ° or 120 ° at Substrate circumference arranged. In this way, the uniformity the energy distribution and the curing speed of the adhesive elevated.
Die Einstrahlung von Energie in den optischen Datenträger kann durch ein Rechnerprogramm gesteuert werden. Parameter dieses Programms können die gewünschte Zeit der Bearbeitung, die Materialkonstanten der Rohlinge und des Klebers sowie die Verbiegung der Rohlinge vor und während der Energieeinstrahlung aber insbesondere auch nach der Energieeinstrahlung sein. Vorteilhaft ist, wenn durch eine entsprechende Meßeinrichtung die Verbiegung der Rohlinge nach der Energieeinstrahlung ständig oder intermittierend gemessen wird, so daß das Meßergebnis für die Behandlung der nachfolgenden Rohlinge berücksichtigt werden kann. Das Ziel der gesteuerten Energieeinstrahlung ist es, verklebte optische Datenträger zu erhalten, die innerhalb eines zulässigen Toleranzbereichs plan sind.The irradiation of energy in the optical disk can be controlled by a computer program. Parameters of this Program can the desired Time of processing, the material constants of the blanks and the adhesive as well as the bending of the blanks before and during the energy irradiation but especially after the energy radiation. It is advantageous if the bending by a corresponding measuring device the blanks are measured continuously or intermittently after exposure to energy, so that measurement result for the Treatment of the subsequent blanks can be considered. The The aim of controlled energy radiation is to glue optical disk to get that are plan within an allowable tolerance range.
Bei der Aushärtung eines Klebers mittels der erfindungsgemäßen Vorrichtung und durch das erfindungsgemäße Verfahren läßt sich gegenüber einer herkömmlichen Aushärtung eine Einsparung der elektrischen Leistung von 5 bis 10 kW erreichen.When curing an adhesive using the device according to the invention and by the method according to the invention let yourself across from a conventional one curing achieve electrical power savings of 5 to 10 kW.
Die Erfindung kann auch zum Einsatz
kommen, wenn eine Direktverbindung durch Aufschmelzen der Grenzflächen
Die Erfindung ist auch anwendbar,
wenn die Verbindung der beiden Rohlinge
Claims (29)
Priority Applications (1)
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DE10241163A DE10241163B4 (en) | 2002-09-05 | 2002-09-05 | Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives |
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DE10241163A DE10241163B4 (en) | 2002-09-05 | 2002-09-05 | Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives |
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DE10241163A1 true DE10241163A1 (en) | 2004-03-25 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10314866A1 (en) * | 2003-04-01 | 2004-11-11 | Arccure Technologies Gmbh | Deformation smoothing method for application to an optical storage medium, especially a DVD, whereby a temperature gradient is generated from the outside of the disk to its center by controlled application and removal of heat |
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US5716761A (en) * | 1995-09-19 | 1998-02-10 | Pioneer Electronic Corporation | Double-sided-multi-layered optical disc and a method for manufacturing the same |
US6136133A (en) * | 1997-12-17 | 2000-10-24 | Pioneer Electronic Corporation | Method of producing optical disc of bonded type |
Family Cites Families (5)
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JPS62164242A (en) * | 1986-01-14 | 1987-07-20 | Matsushita Electric Ind Co Ltd | Production of disk carrier for optical information recording and reproduction |
DE69611697T2 (en) * | 1995-03-15 | 2001-08-16 | Nlm Combineering Aps Naerum | METHOD FOR ACTIVATING PHOTOINITIATORS IN LIGHT-SENSITIVE SUBSTRATES AND DEVICE FOR CURING SUCH SUBSTRATES |
DE19651423C2 (en) * | 1996-12-11 | 1999-11-25 | Singulus Technologies Ag | Device and method for gluing two substrate parts to a substrate, in particular to an optical data carrier (CD) |
EP1164009A3 (en) * | 1997-11-12 | 2005-01-26 | First Light Technology, Inc. | System and method for curing a resin disposed between a top and bottom substrate with thermal management |
DE60019679T2 (en) * | 1999-06-11 | 2006-01-19 | Kitano Engineering Co., Ltd., Komatsushima | Apparatus for curing an optical disk |
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2002
- 2002-09-05 DE DE10241163A patent/DE10241163B4/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5716761A (en) * | 1995-09-19 | 1998-02-10 | Pioneer Electronic Corporation | Double-sided-multi-layered optical disc and a method for manufacturing the same |
US6136133A (en) * | 1997-12-17 | 2000-10-24 | Pioneer Electronic Corporation | Method of producing optical disc of bonded type |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10314866A1 (en) * | 2003-04-01 | 2004-11-11 | Arccure Technologies Gmbh | Deformation smoothing method for application to an optical storage medium, especially a DVD, whereby a temperature gradient is generated from the outside of the disk to its center by controlled application and removal of heat |
DE10314866B4 (en) * | 2003-04-01 | 2005-08-04 | Arccure Technologies Gmbh | Method and device for compensating deformations of an optical storage medium |
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