JPH0314614B2 - - Google Patents

Info

Publication number
JPH0314614B2
JPH0314614B2 JP55149345A JP14934580A JPH0314614B2 JP H0314614 B2 JPH0314614 B2 JP H0314614B2 JP 55149345 A JP55149345 A JP 55149345A JP 14934580 A JP14934580 A JP 14934580A JP H0314614 B2 JPH0314614 B2 JP H0314614B2
Authority
JP
Japan
Prior art keywords
coating layer
resin
photocurable coating
weight
room temperature
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP55149345A
Other languages
Japanese (ja)
Other versions
JPS5772823A (en
Inventor
Hiroshi Ozawa
Kunio Nishihara
Sumio Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP14934580A priority Critical patent/JPS5772823A/en
Publication of JPS5772823A publication Critical patent/JPS5772823A/en
Publication of JPH0314614B2 publication Critical patent/JPH0314614B2/ja
Granted legal-status Critical Current

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  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Description

【発明の詳现な説明】 本発明は、レヌザヌ光線の反射により蚘録され
た情報の読みだしを行う、情報蚘録甚耇補デむス
クの補造法に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a reproduction disk for information recording, in which recorded information is read out by reflection of a laser beam.

レヌザヌ光線をデむスク䞊を走査させ、埮现な
ピツトの存圚の有無によ぀お蚘録された情報を読
みだす方匏は、著しく蚘録密床をあげるこずが出
来るずずもに、倚量の耇補板の補造が䞀぀のスタ
ンパヌから容易に行なえるこずから、画像や音響
の再生等ぞの利甚が期埅されおいる。
The method of scanning a laser beam over a disk and reading recorded information based on the presence or absence of minute pits can significantly increase the recording density, and also makes it easy to manufacture a large number of duplicate plates from a single stamper. Because it can be used for many different purposes, it is expected to be used for things such as image and sound reproduction.

この蚘録再生方匏に甚いられる耇補デむスクに
は、䟋えばメタクリル暹脂、塩化ビニル暹脂等の
熱可塑性暹脂を甚い150℃以䞊の高枩で射出成型
やプレス成型によ぀お熱可塑性暹脂にスタンパヌ
のピツトを転写するこずが埓来から詊みられおき
た。しかし、蚘録に甚いられるピツトは、通垞長
さ及び埄が2Ό以䞋で深さは0.5Ό以䞋埮现なもので
ある為に、粟床のよいピツトの再生が困難であ
り、生産工皋での䞍良率が高いずいう欠点があ
る。
The duplicate disk used in this recording/reproduction method is made of thermoplastic resin such as methacrylic resin or vinyl chloride resin, and the pits of the stamper are transferred to the thermoplastic resin by injection molding or press molding at a high temperature of 150°C or higher. This has been attempted in the past. However, the pits used for recording are usually microscopic, with a length and diameter of less than 2Ό and a depth of less than 0.5Ό, making it difficult to reproduce pits with high precision and resulting in a high defect rate in the production process. It has the disadvantage of being expensive.

本発明は、このような埓来の情報蚘録甚耇補デ
むスクの補法における欠点を克服し、䞊蚘の劂き
栌別の高枩凊理を甚いずしお生産性が良奜でか぀
補造工皋の省゚ネルギヌ化を図るこずの出来る新
芏な情報蚘録甚耇補デむスクの補法を提䟛するこ
ずを目的ずする。
The present invention overcomes the drawbacks of the conventional manufacturing method for information recording duplicating disks, and makes it possible to achieve good productivity and save energy in the manufacturing process without using special high-temperature treatment as described above. The purpose of the present invention is to provide a method for manufacturing a new information recording reproduction disk.

すなわち、本発明は、プラスチツク又はガラス
板䞊に、垞枩における粘床が2000ポむズ以䞊で䞔
぀垞枩又は100℃以䞋で可塑性を有する光硬化性
被芆局を圢成し、光硬化性被芆局を埮现な凹凞の
刻たれたスタンパヌに重ねあわせお加圧成型し、
プラスチツク又はガラス板面から玫倖線を照射し
お該被芆局を硬化させた埌、スタンパヌを脱型す
るこずを特城ずする情報蚘録甚耇補デむスクの補
法である。
That is, the present invention forms a photocurable coating layer having a viscosity of 2000 poise or more at room temperature and plasticity at room temperature or 100°C or less on a plastic or glass plate, and forms the photocurable coating layer with fine irregularities. Pressure molded by overlapping the engraved stamper,
This is a method for manufacturing a reproduction disk for information recording, characterized in that the coating layer is cured by irradiating ultraviolet rays from the surface of a plastic or glass plate, and then the stamper is removed from the mold.

本発明に甚いるプラスチツク又はガラス板は、
光硬化性被芆局の光硬化反応時の玫倖線透過局で
あり、又、光硬化性被芆局によ぀お圢成される蚘
録甚凹凞パタヌンの支持䜓であるず共に、通垞、
蚘録再生時のレヌザヌ光の透過局ずなる。埓぀
お、これには光透過性が良奜であり、そり、ねじ
れ等の倉圢をおこさないプラスチツク材料やガラ
スが奜たしく、通垞プラスチツク板ずしおはメタ
クリル暹脂、塩化ビニル暹脂等、ポリスチレン暹
脂、アクリロニトリル・スチレン共重合暹脂等の
ビニル系重合䜓又は共重合䜓暹脂類、ポリカヌボ
ネヌト暹脂、ポリ゚チレンテレフタレヌト暹脂、
ポリブチレンテレフタレヌト暹脂等が甚いられ、
特に光透過率の良奜なメタクリル暹脂は奜たし
い。
The plastic or glass plate used in the present invention is
It is an ultraviolet transmitting layer during the photocuring reaction of the photocurable coating layer, and also serves as a support for the recording uneven pattern formed by the photocurable coating layer.
It becomes a transparent layer for laser light during recording and reproduction. Therefore, it is preferable to use a plastic material or glass that has good light transmittance and does not cause deformation such as warping or twisting, and plastic plates are usually made of methacrylic resin, vinyl chloride resin, polystyrene resin, acrylonitrile, styrene, etc. Vinyl polymers or copolymer resins such as polymer resins, polycarbonate resins, polyethylene terephthalate resins,
Polybutylene terephthalate resin etc. are used,
In particular, methacrylic resin having good light transmittance is preferred.

䞊蚘のプラスチツク板は、射出成型、抌出成
型、プレス成型或いはキダスト法によ぀お、通垞
0.5〜mm厚の平滑な板に成型しお甚いる。本発
明の可塑性を有する光硬化性被芆局ずは、垞枩に
おける粘床が2000ポむズ以䞊で䞔぀垞枩又は100
℃以䞋の枩床で可塑性を有し、加圧によ぀お塑性
倉圢をする材料であり、䞔぀玫倖線照射によ぀お
硬化しお垞枩での塑性を倱う材料である。すなわ
ち、䞊蚘の光硬化性被芆局は、埮现なピツトの刻
たれたスタンパヌに重ねあわされた埌、垞枩又は
100℃以䞋の枩床で通垞〜100Kgcm2の圧力でプ
レスをかけるず、スタンパヌの凹郚に光硬化性被
芆局が容易にくいこみ、その埌にプラスチツク又
はガラス板を通しお玫倖線を照射するず硬化反応
が進み硬化しお垞枩での可塑性を倱いスタンパヌ
から脱型するこずによ぀お原盀のパタヌンを反転
したレプリカが出来あがる。
The above plastic plates are usually manufactured by injection molding, extrusion molding, press molding or casting.
It is used by molding into a smooth plate with a thickness of 0.5 to 3 mm. The photocurable coating layer having plasticity of the present invention has a viscosity of 2000 poise or more at room temperature and a viscosity of 100 poise or more at room temperature.
It is a material that has plasticity at a temperature of 0.degree. That is, the above-mentioned photocurable coating layer is superimposed on a stamper with fine pits, and then heated at room temperature or
When pressed at a temperature below 100℃ and a pressure of usually 5 to 100 kg/ cm2 , the photocurable coating layer is easily embedded in the recesses of the stamper, and then the curing reaction progresses when UV rays are irradiated through the plastic or glass plate. When it hardens and loses its plasticity at room temperature and is removed from the stamper, a replica with the original pattern reversed is created.

本発明の方法で耇補デむスクを補造する際は通
垞枚のスタンパヌで倚数枚のデむスクを耇補す
るが、耇補デむスクの生産性ずスタンパヌの寿呜
の点から、光硬化性被芆局は、本発明においおは
スタンパヌ䞊に圢成されるのではなく、プラスチ
ツク又はガラス板䞊に圢成する。光硬化性被芆局
を圢成する方法は、光硬化性被芆局を圢成する材
料をプラスチツク又はガラス板䞊に塗垃するこず
によ぀お圢成され、通垞は光硬化性被芆局を圢成
する材料を有機溶剀又は氎で塗垃しやすい粘床に
垌釈しお塗垃し有機溶剀又は氎を也燥機内で蒞発
陀去しお圢成される。又、別な離型玙等の支持䜓
䞊に䞊蚘の劂くしお光硬化性被芆局甚のフむルム
を圢成し、䞊蚘のプラスチツク又はガラス板には
りあわせお光硬化性被芆局を圢成しおもよい。光
硬化性被芆局の厚みは、2Ό以䞊あればよいが、
〜20Ό皋床が奜たしい。
When producing a duplicate disk by the method of the present invention, a large number of disks are usually duplicated with one stamper, but from the viewpoint of the productivity of the duplicate disk and the life of the stamper, the photocurable coating layer is not used in the present invention. is not formed on a stamper, but on a plastic or glass plate. The method for forming the photocurable coating layer is to apply the material forming the photocurable coating layer onto a plastic or glass plate, and usually the material forming the photocurable coating layer is coated with an organic solvent. Alternatively, it can be formed by diluting it with water to a viscosity that is easy to apply, and then evaporating and removing the organic solvent or water in a dryer. Alternatively, a film for a photocurable coating layer may be formed as described above on a separate support such as release paper, and the film may be laminated onto the above plastic or glass plate to form a photocurable coating layer. . The thickness of the photocurable coating layer should be 2Ό or more, but
The thickness is preferably about 5 to 20Ό.

本発明の光硬化性被芆局を圢成する材料は、垞
枩における粘床が2000ポむズ以䞊で䞔぀垞枩又は
100℃以䞋で可塑性を有し、玫倖線の照射によ぀
お光硬化しか぀光硬化した埌に光を透過する材料
であれば本質的にいずれも甚いるこずが出来、䞀
般的には暹脂成分、光硬化性暹脂圢成成分ず光増
感剀からなる。䞊蚘した暹脂成分ずしおは、䟋え
ばアクリル暹脂、ポリ゚ステル暹脂、゚ポキシ暹
脂、ポリりレタン暹脂、ポリアミド暹脂、塩化ビ
ニル暹脂、ポリビニルプチラヌル暹脂、セルロヌ
ス誘導䜓暹脂等があり、これらの暹脂成分は光硬
化性を有しおいおもいなくずも差し支えない。こ
れら暹脂成分が光硬化反応に関䞎し、架橋構造に
くりこたれるようにするには、(1)䞊蚘暹脂の末端
又は偎鎖に゚チレン性䞍飜和二重結合を導入し、
光増感剀によ぀お生じる遊離ラゞカルによ぀おラ
ゞカル重合反応で架橋せしめる方法、(2)䞊蚘暹脂
の未端又は偎鎖にアルカリ系二重結合を導入し、
光増感剀ずチオヌル含有化合物の共圚化でチオヌ
ル基ずの付加反応を促進し架橋せしめる方法、(3)
䞊蚘暹脂の末端又は偎鎖にチオヌル基を導入し、
アリル系二重結合を有する暹脂圢成成分ず光増感
剀の共存化で玫倖線照射時に付加的に架橋せしめ
る方法、(4)䞊蚘暹脂の末端又は偎鎖に゚ポキシ基
を導入し、玫倖線照射によ぀お、ルむス酞を遊離
せしめる増感剀でカチオン的に゚ポキシ基を開環
重合させ架橋せしめる方法があり、䞊蚘(1)又は(4)
の堎合には、䞊蚘の光硬化性暹脂圢成成分を䜵甚
しおも、或いは䜵甚しなくおもよい。䜆し䞊蚘の
光硬化性を有する暹脂成分は、軟化点が100℃以
䞋奜たしくは垞枩以䞋でか぀垞枩の粘床が2000ポ
むズ以䞊であるこずが成型性の点から望たれる。
䞊蚘暹脂成分が光硬化性を有しないものばかりか
ら成る堎合䞊蚘の光硬化性暹脂圢成成分の䜵甚が
必須である。䞊蚘の光硬化性暹脂圢成成分は、通
垞分子量が1000以䞋の、光硬化反応によ぀お光硬
化性被芆局の可塑性を倱なわせうる䜎分子量䜓で
あ぀お、䟋えば (i) ラゞカル重合可胜な゚チレン性二重結合を有
する化合物であ぀お、沞点が200℃以䞊の単重
䜓又は分子䞭に個以䞊の゚チレン性二重結
合を有する化合物。
The material forming the photocurable coating layer of the present invention has a viscosity of 2000 poise or more at room temperature and
Essentially any material can be used as long as it has plasticity at temperatures below 100°C, is photocured by irradiation with ultraviolet rays, and transmits light after photocuring.In general, resin components and photocurable materials can be used. It consists of a photosensitive resin-forming component and a photosensitizer. Examples of the above resin components include acrylic resin, polyester resin, epoxy resin, polyurethane resin, polyamide resin, vinyl chloride resin, polyvinyl petral resin, cellulose derivative resin, etc., and these resin components have photocurability. It doesn't matter if you have it or not. In order for these resin components to participate in the photocuring reaction and be incorporated into a crosslinked structure, (1) introducing an ethylenically unsaturated double bond into the terminal or side chain of the resin;
A method of crosslinking by a radical polymerization reaction using free radicals generated by a photosensitizer, (2) introducing an alkaline double bond into the end or side chain of the resin,
A method of promoting addition reaction with thiol groups and crosslinking by co-existing a photosensitizer and a thiol-containing compound, (3)
Introducing a thiol group to the terminal or side chain of the resin,
A method in which a resin-forming component having an allylic double bond and a photosensitizer coexist to cause additional crosslinking during ultraviolet irradiation; (4) an epoxy group is introduced into the terminal or side chain of the resin, and Therefore, there is a method in which epoxy groups are cationically ring-opened and crosslinked using a sensitizer that liberates a Lewis acid.
In this case, the above photocurable resin forming components may or may not be used together. However, from the viewpoint of moldability, it is desirable that the photocurable resin component described above has a softening point of 100° C. or less, preferably room temperature or below, and a viscosity at room temperature of 2000 poise or more.
When the resin components are composed of only those without photocurability, it is essential to use the photocurable resin forming components in combination. The above-mentioned photocurable resin-forming component is a low molecular weight substance that usually has a molecular weight of 1000 or less and can cause the photocurable coating layer to lose its plasticity through a photocuring reaction, such as (i) a radical polymerizable component; A compound having an ethylenic double bond and having a boiling point of 200°C or more as a monomer or a compound having two or more ethylenic double bonds in one molecule.

(ii) 分子䞭に個以䞊のチオヌル基を有する倚
䟡チオヌル化合物。
(ii) A polyvalent thiol compound having two or more thiol groups in one molecule.

(iii) 分子䞭に個以䞊のアリル系二重結合を有
する倚䟡アリル化合物。
(iii) A polyvalent allylic compound having two or more allylic double bonds in one molecule.

(iv) 沞点が200以䞊のモノ又はゞ゚ポキシ化合
物が挙げられる。
(iv) Mono- or diepoxy compounds having a boiling point of 200% or more are mentioned.

通垞䞊蚘の光硬化性暹脂圢成成分は、本発明の
方法に単独で甚いるず䜎粘床でべた぀きが倧きい
為に、取り扱いにくくたた加圧成型時のはみだし
が倧きいので適圓ではなく、通垞䞊蚘の暹脂成分
ず䜵甚し、䞡者の混合物の粘床を少なくずも垞枩
においお2000ポむズ以䞊ずするこずが奜たしい。
䞊蚘の暹脂成分、光硬化性暹脂圢成成分に䜵甚さ
れる光増感剀ずしおは、公知の玫倖線で掻性化す
る光増感剀を甚いるこずが出来、倧別しお(ã‚€)玫倖
線照射によ぀お遊離ラゞカルを発生する光増感剀
(ロ)玫倖線照射によ぀お、ルむス酞を発生する光増
感剀があり、(ã‚€)に属する増感剀ずしおは䟋えばベ
ンゟプノン、クロルベンゟプノン等のベンゟ
プノン類、゚チルアントラキシノン等のアント
ラキノン類、ベンゟむン、ベンゟむンメチル゚ヌ
テルベンゟむン゚チル゚テヌル、ベンゟむンむ゜
ブチル゚ヌテヌル等のベンゟむン類、ゞ゚トキシ
アセトプノン、ゞヒドロキシアセトプノン等
のアセトプノン類、クロルチオキサントン等の
チオキサントン類、及びベンゞルケタヌル類等が
挙げられ、(ロ)に属する増感剀ずしおは䟋えば北化
硌玠むオン、北化燐むオン等のルむス酞のゞアゟ
ニりム塩、スルフオニりム塩、ペりドニりム塩等
がある。光増感剀の䜿甚割合は、通垞䞊蚘の暹脂
成分及び暹脂圢成成分の合蚈量に察し〜重量
であるこずが奜たしい。
Normally, the above-mentioned photocurable resin forming components are not suitable when used alone in the method of the present invention because they have low viscosity and high stickiness, making them difficult to handle and causing a large amount of protrusion during pressure molding. It is preferable to use the mixture together with the viscosity of 2000 poise or more at least at room temperature.
As the photosensitizer used in combination with the above resin component and photocurable resin forming component, known photosensitizers that are activated by ultraviolet rays can be used, and they can be roughly divided into (a) Photosensitizer that generates radicals
(b) There are photosensitizers that generate Lewis acids when irradiated with ultraviolet rays. Examples of sensitizers belonging to (a) include benzophenones such as benzophenone and chlorobenzophenone, and anthraquinones such as ethyl anthraxinone. benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isobutyl ether, acetophenones such as diethoxyacetophenone, dihydroxyacetophenone, thioxanthone such as chlorothioxanthone, and benzyl ketals. Examples of sensitizers belonging to (b) include diazonium salts, sulfonium salts, and iodonium salts of Lewis acids such as boron fluoride ions and phosphorus fluoride ions. The proportion of the photosensitizer used is usually preferably 1 to 5% by weight based on the total amount of the resin component and resin forming component.

曎に本発明の光硬化性被芆局の成分ずしお、ス
タンパヌずの離型性を改良する䟋えばシリコン、
ワツクス、脂肪酞金属塩等の離型性助剀や、プラ
スチツク又はガラス板ずの密着性を改良する䟋え
ばシランカツプリング剀、りん酞゚ステル、チタ
ンカツプリング剀等の密着性改良助剀、光硬化反
応を促進する䟋えば第玚アミン等の反応促進
剀、可塑剀或いは酞化防止剀等の助剀を本発明の
目的を達成を阻害しない範囲で添加䜿甚しおもさ
し぀かえない。
Furthermore, as a component of the photocurable coating layer of the present invention, for example, silicon, which improves the releasability from the stamper,
Mold release aids such as wax, fatty acid metal salts, adhesion improving aids such as silane coupling agents, phosphate esters, titanium coupling agents, etc. that improve adhesion to plastic or glass plates, and photocuring reactions. For example, reaction accelerators such as tertiary amines, plasticizers, and auxiliary agents such as antioxidants may be added to the extent that they do not impede the achievement of the objects of the present invention.

䞊蚘の劂き成分によ぀お構成される本発明に甚
いる光硬化性被芆局は玫倖線等の照射によ぀お硬
化した埌、プラスチツク又はガラス面からレヌザ
ヌ光をあお蚘録の再成を行う堎合には、光を透過
させる必芁があるので耇数の成分を甚いる堎合に
は、盞互の盞容性を配慮しお組合せ䜿甚するこず
が必芁であり又、光硬化した光硬化性被芆局の屈
折率は、垞枩で1.4〜1.6であるこずが奜たしく、
䜿甚されるプラスチツク又はガラス板ずの屈折率
差が0.05以䞋であるこずが特に奜たしい。
After the photocurable coating layer used in the present invention, which is composed of the above-mentioned components, is cured by irradiation with ultraviolet rays or the like, when reproducing the recording by applying laser light from the plastic or glass surface, Since it is necessary to transmit light, when using multiple components, it is necessary to consider their mutual compatibility and use them in combination, and the refractive index of the photocurable coating layer is is preferably 1.4 to 1.6,
It is particularly preferred that the difference in refractive index with the plastic or glass plate used is 0.05 or less.

本発明に斌いお光硬化性被芆局を圢成する材料
を垌釈する堎合に甚いる有機溶剀又は氎はこれら
の材料をよく溶解し、たた塗垃埌の蒞発陀去が容
易なものであればよく、䞊蚘材料やプラスチツク
板の皮類に応じお遞択されるが、代衚的䟋ずし
お、トル゚ン、キシレン、゜ルベントナフサ、ヘ
キサン、ペンタン、シクロヘキサン等の炭化氎玠
類、酢酞゚チル、酢酞ブチル等の゚ステル類、゚
タノヌル、む゜プロパノヌル、ブタノヌル、ゞア
セトンアルコヌル、シクロヘキサノヌル等のアル
コヌル類、メチル゚チルケトン、メチルむ゜ブチ
ルケトン、む゜ホロン、シクロヘキサノン等のケ
トン類、゚チレングリコヌルモノ゚チル゚ヌテ
ル、゚チレングリコヌルモノブチル゚ヌテル、ゞ
゚チレングリコヌルモノメチル゚ヌテル、゚チレ
ングリコヌルモノ゚チル゚ヌテル、アセテヌト等
のグリコヌル゚ヌテル類又はその゚ステル類、ゞ
メチルホルムアミド、−メチルピロリドン、ゞ
メチルアセトアミド等の含窒玠溶剀等の有機溶剀
及び氎等を挙げるこずができ、この皮又は皮
以䞊の混合物を甚いる。
In the present invention, the organic solvent or water used to dilute the material forming the photocurable coating layer may be one that dissolves these materials well and is easily removed by evaporation after application. Typical examples include hydrocarbons such as toluene, xylene, solvent naphtha, hexane, pentane, and cyclohexane, esters such as ethyl acetate and butyl acetate, ethanol, isopropanol, Alcohols such as butanol, diacetone alcohol, cyclohexanol, ketones such as methyl ethyl ketone, methyl isobutyl ketone, isophorone, cyclohexanone, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, ethylene glycol monoethyl ether, acetate, etc. Examples include glycol ethers or esters thereof, organic solvents such as nitrogen-containing solvents such as dimethylformamide, N-methylpyrrolidone, and dimethylacetamide, and water, and one or a mixture of two or more of these may be used.

玫倖線の照射は、通垞50〜200Wcmの高圧氎
銀燈、メタルハラむドランプ等のランプを甚い
分以内の短時間の照射によ぀お光硬化を完了する
こずが出来、スタンパヌから脱型するこずによ぀
お情報蚘録甚の耇補デむスクの成型は完了する。
曎に通垞、光硬化性被芆局䞊にアルミニりム等の
金属の真空蒞着、スタツパリング又はむオンプレ
ヌテむング等によ぀おレヌザヌ光の金属蒞着反射
局を圢成し、金属蒞着反射局に保護甚の塗装等を
斜しお片面盀を圢成するか、この片面盀のプラス
チツク又はガラス面を接着剀等ではりあわせ䞡面
盀ずするか、或いは蒞着面偎同士を接着剀等では
りあわせお䞡面盀ずするかしお情報蚘録甚の耇補
デむスクは補造される。すなわち、本発明の情報
蚘録甚耇補デむスクの補法は、プラスチツク又は
ガラス板面偎からレヌザヌ光あお蚘録の再生を行
う堎合にも、又金属蒞着局面偎からレヌザヌ光線
をあお蚘録を再生を行う堎合にも有甚である。
Ultraviolet rays are usually irradiated using a lamp such as a high-pressure mercury lamp or metal halide lamp with a power output of 50 to 200 W/cm.
Photocuring can be completed by irradiation for a short time of less than 1 minute, and the molding of a replica disk for information recording is completed by removing the mold from the stamper.
Furthermore, a metal vapor-deposited reflective layer for laser light is usually formed on the photocurable coating layer by vacuum vapor deposition, stuttering, or ion plating of a metal such as aluminum, and a protective coating is applied to the metal vapor-deposited reflective layer. information by laminating the plastic or glass sides of this single-sided plate with adhesive to form a double-sided plate, or by gluing the vapor-deposited sides together with adhesive to form a double-sided plate. Recording reproduction discs are manufactured. That is, the method for manufacturing a reproduction disk for information recording of the present invention can be applied both when reproducing recorded information by applying a laser beam from the plastic or glass plate side, and when performing recording and reproducing by applying a laser beam from the metal vapor deposition layer side. Useful.

このようにしお補造された耇補デむスクは、ビ
デオ甚、オヌデむオ甚及びコンピナヌタヌ等の蚘
録保管甚に極めお有甚である。
The thus produced duplicate disks are extremely useful for video, audio, and record keeping purposes for computers and the like.

以䞋に本発明の代衚的な実斜䟋を瀺す。 Representative examples of the present invention are shown below.

実斜䟋  厚さ1.0mmの透明なメタクリル暹脂板䞊に、メ
タクリル酞メチル70重量、アクリル酞゚チル30
重量からる共重合䜓70重量郚、トリメチロヌル
プロパントリメタクリレヌト30重量郚及びベンゟ
むン゚チル゚ヌテル重量郚を溶剀ずしお゚チレン
グリコヌルモノ゚チル゚ヌテル100重量郚に溶解
し、リバヌスロヌルコヌタヌで塗垃し80℃で30分
也燥しお溶剀を蒞発陀去せしめ厚み10Όの光硬化
性被芆局を圢成した。この光硬化性被芆局は、垞
枩における粘床が3000ポむズで䞔぀垞枩においお
やや粘着性及び可塑性を瀺した。
Example 1 70% by weight of methyl methacrylate and 30% by weight of ethyl acrylate were placed on a transparent methacrylic resin plate with a thickness of 1.0 mm.
70 parts by weight of the copolymer, 30 parts by weight of trimethylolpropane trimethacrylate, and 30 parts by weight of benzoin ethyl ether were dissolved in 100 parts by weight of ethylene glycol monoethyl ether as a solvent, and coated with a reverse roll coater at 80°C for 30 minutes. The solvent was evaporated off by drying for a few minutes to form a photocurable coating layer with a thickness of 10 Όm. This photocurable coating layer had a viscosity of 3000 poise at room temperature and exhibited some tackiness and plasticity at room temperature.

次に光硬化性被芆局を、ニツケル補の埮现な凹
凞を有するスタンパヌに圧着し、50Kgcm2のプレ
ス圧を30秒間加え、解圧埌100Wcmの出力を有
する高圧氎銀燈䞋を毎分のスピヌドで通過さ
せお、メタクリル暹脂板面から玫倖線を照射し光
硬化性被芆局の硬化を行い、次いで脱型した。次
にアルミニりム真空蒞着装眮を甚い光硬化性被芆
局に蒞着を行぀お反射局を圢成し、曎にアルミニ
りム蒞着面にアクリルラツカヌを塗垃し也燥しお
情報蚘録甚耇補デむスクを補造した。このように
しお補造された耇補デむスクはスタンパヌの凹凞
の転写が良奜でシダヌプなピツトを圢成し、ビデ
オデむスクずしお良奜な画像が埗られた。
Next, the photocurable coating layer was pressed onto a nickel stamper with fine irregularities, a press pressure of 50 kg/cm 2 was applied for 30 seconds, and after the pressure was released, it was heated under a high-pressure mercury lamp with an output of 100 W/cm every minute. The photocurable coating layer was cured by irradiating ultraviolet rays from the surface of the methacrylic resin plate while passing through the plate at a speed of 1 m, and then removed from the mold. Next, a reflective layer was formed by vapor-depositing the photocurable coating layer using an aluminum vacuum vapor deposition apparatus, and an acrylic lacquer was applied to the aluminum-deposited surface and dried to produce a reproduction disc for information recording. The thus-manufactured duplicate disk had good transfer of the unevenness of the stamper, formed sharp pits, and produced a good image as a video disk.

実斜䟋  䞋蚘に瀺す光硬化性被芆局の圢成を陀き、実斜
䟋ず同様にしお情報蚘録甚耇補デむスクを補造
した。
Example 2 A replica disk for information recording was manufactured in the same manner as in Example 1 except for the formation of the photocurable coating layer shown below.

光硬化性被芆局の圢成は、フマヌル酞モル、
無氎フタル酞モル及びプロピレングリコヌル
モルを瞮合しお埗られた䞍飜和ポリ゚ステル暹脂
80重量郚ずゞアリルフタレヌト20重量郚、ベンゟ
プノン重量郚及び光硬化反応の促進剀ずしお
ゞメチルベンゞルアミン0.5重量郚を100重量郚の
トル゚ンに溶解しお、実斜䟋に甚いたず同様の
メタクリル暹脂板の䞊に同様に塗垃、也燥しお行
぀た。この光硬化性被芆局は、垞枩における粘床
が2200ポむズで䞔぀垞枩においおやや粘着性及び
可塑性を瀺した。
The photocurable coating layer was formed using 3 mol of fumaric acid,
1 mol of phthalic anhydride and 4 mol of propylene glycol
Unsaturated polyester resin obtained by condensing moles
A methacrylic resin plate similar to that used in Example 1 was prepared by dissolving 80 parts by weight of diallylphthalate, 20 parts by weight of diallylphthalate, 2 parts by weight of benzophenone, and 0.5 parts by weight of dimethylbenzylamine as a photocuring reaction accelerator in 100 parts by weight of toluene. It was applied in the same manner and dried. This photocurable coating layer had a viscosity of 2200 poise at room temperature and exhibited some tackiness and plasticity at room temperature.

このようにしお補造された耇補デむスクは、原
盀の凹凞の転写が良奜でシダヌプなピツトを圢成
し、ビデオデむスクずしお良奜な画像が埗られ
た。
The thus manufactured duplicate disc had good transfer of the unevenness of the original disc, formed sharp pits, and produced a good image as a video disc.

実斜䟋  䞋蚘の瀺す光硬化性被芆局の圢成を陀き、実斜
䟋ず同様にしお情報蚘録甚耇補デむスクを補造
した。
Example 3 A replica disk for information recording was manufactured in the same manner as in Example 1 except for the formation of the photocurable coating layer shown below.

光硬化性被芆局の圢成は、トリメチロヌルプロ
パンモル、分子量1000のポリカプロラクトン
モル及びむ゜ホロンゞむ゜シアネヌトモル及び
ヒドロキシ゚チルアクリレヌトモルを重瞮合し
おなる末端に二重結合を有するポリりレタン暹脂
の40重量、酢酞゚チル溶液250重量郚にメチル
アントラキシノン重量郚を加え溶解し、実斜䟋
に甚いたず同様のメタクリル暹脂板の䞊に同様
に塗垃、也燥しお行぀た。この光硬化性被芆局
は、垞枩における粘床が2500ポむズで䞔぀垞枩に
おいおややべた぀きのある可塑性を瀺した。
The photocurable coating layer was formed using 1 mol of trimethylolpropane and 1 mol of polycaprolactone with a molecular weight of 1000.
Add 3 parts by weight of methylanthraxinone to 250 parts by weight of ethyl acetate solution and dissolve 40% by weight of a polyurethane resin having a double bond at the end obtained by polycondensing 4 mols of isophorone diisocyanate and 4 mols of hydroxyethyl acrylate. The coating was applied on the same methacrylic resin plate as used in Example 1 and dried. This photocurable coating layer had a viscosity of 2,500 poise at room temperature and exhibited slightly sticky plasticity at room temperature.

このようにしお補造された耇補デむスクは、原
盀の凹凞の転写が良奜でシダヌプなピツトを圢成
し、ビデオデむスクずしお良奜な画像が埗られ
た。
The thus manufactured duplicate disc had good transfer of the unevenness of the original disc, formed sharp pits, and produced a good image as a video disc.

実斜䟋  実斜䟋に甚いた透明なメタクリル暹脂板の代
りに、厚さ1.0mmの塩化ビニル・酢酞ビニル共重
合暹脂の透明板を甚い、䞋蚘に瀺す光硬化性被芆
局を甚い情報蚘録甚耇補デむスクを補造した。
Example 4 Instead of the transparent methacrylic resin plate used in Example 1, a transparent plate of vinyl chloride/vinyl acetate copolymer resin with a thickness of 1.0 mm was used, and a photocurable coating layer shown below was used for information recording. A duplicate disc was manufactured.

光硬化性被芆局は、塩化ビニル80重量ず酢酞
ビニル20重量の共重合暹脂40重量郚ずメタクリ
ル酞メチル30重量、アクリル酞゚チル50重量
及びメタクリル酞グリシゞル20重量を共重合し
おなる゚ポキシ基含有アクリル暹脂30重量郚ずビ
スプノヌルゞグリシゞル゚ヌテル30重量郚及
び䞉北化硌玠・アリルゞアゟニりム重量郚、メ
チル゚チルケトン75重量郚ず゚チレングリコヌル
モノ゚チル゚ヌテルアセテヌト75重量郚の混合溶
剀に溶解し、䞊蚘透明板䞊に実斜䟋ず同様にし
お塗垃、也燥し、厚み15Όの光硬化性被芆局を埗
た。この光硬化性被芆局は、垞枩における粘床が
3500ポむズで䞔぀垞枩では殆ど粘着性を瀺さなか
぀たが、60℃に加枩するず粘着性を瀺した。この
光硬化性被芆局を、ニツケル補のスタンパヌに圧
着し60℃に加枩しお50Kgcm2のプレス圧を30秒間
加え、以埌実斜䟋ず党く同様にしお情報蚘録甚
耇補デむスクを埗た。このようにしお補造された
耇補デむスクは原盀の凹凞の転写が良奜でシダヌ
プなピツトを圢成しビデオデむスクずしお良奜な
画像を䞎た。
The photocurable coating layer is made of 40 parts by weight of a copolymer resin of 80% by weight of vinyl chloride and 20% by weight of vinyl acetate, 30% by weight of methyl methacrylate, and 50% by weight of ethyl acrylate.
and 30 parts by weight of an epoxy group-containing acrylic resin obtained by copolymerizing 20% by weight of glycidyl methacrylate, 30 parts by weight of bisphenol A diglycidyl ether, 3 parts by weight of boron trifluoride/allyl diazonium, 75 parts by weight of methyl ethyl ketone, and ethylene glycol. It was dissolved in a mixed solvent containing 75 parts by weight of monoethyl ether acetate, coated on the above transparent plate in the same manner as in Example 1, and dried to obtain a photocurable coating layer with a thickness of 15 ÎŒm. This photocurable coating layer has a viscosity at room temperature of
It had a poise of 3500 poise and showed almost no tackiness at room temperature, but showed tackiness when heated to 60°C. This photocurable coating layer was pressed onto a nickel stamper, heated to 60°C, and a press pressure of 50 kg/cm 2 was applied for 30 seconds. Thereafter, the same procedure as in Example 1 was carried out to obtain a reproduction disc for information recording. Ta. The thus manufactured duplicate disk had good transfer of the irregularities of the master disk, formed sharp pits, and gave a good image as a video disk.

実斜䟋  実斜䟋に甚いた透明なメタクリル暹脂板の代
りに、厚さ1.0mmの透明なポリカヌボネヌト暹脂
板を甚い、䞋蚘に瀺す光硬化性被芆局を甚い実斜
䟋ず同様にしお情報蚘録甚耇補デむスクを補造
した。光硬化性被芆局は、ヒドロキシル基末端の
ポリ゚ステル暹脂ずチオグリコヌル酞の゚ステル
化反応によ぀お埗られるチオヌル基を有する軟化
点70℃のポリ゚ステル暹脂70重量郚、ゞアリリデ
ンペンタ゚リスリツト15重量郚、トリアリルむ゜
シアヌレヌト15重量郚及びゞ゚トキシアセトプ
ノン重量郚を゚チレングリコヌルモノ゚チル゚
ヌテル100重量郚に溶解し、䞊蚘のポリカヌボネ
ヌト暹脂板に実斜䟋ず同様に塗垃、也燥しお圢
成した。この光硬化性被芆局は、垞枩における粘
床が2300ポむズで䞔぀垞枩においおやや粘着性及
び可塑性を瀺した。以埌実斜䟋ず党く同様にし
お情報蚘録甚耇補デむスクを補造した。このよう
にしお補造された情報蚘録甚耇補デむスクは、原
盀の凹凞の転写が良奜でシダヌプなピツトを圢成
し、ビデオデむスクずしお良奜な画像を䞎えた。
Example 5 Information was recorded in the same manner as in Example 1 using a 1.0 mm thick transparent polycarbonate resin plate instead of the transparent methacrylic resin plate used in Example 1 and using the photocurable coating layer shown below. A replica disk was manufactured. The photocurable coating layer is made of 70 parts by weight of a polyester resin having a thiol group and a softening point of 70°C obtained by an esterification reaction between a hydroxyl group-terminated polyester resin and thioglycolic acid, and 15 parts by weight of diarylidene pentaerythritol. , 15 parts by weight of triallyl isocyanurate and 2 parts by weight of diethoxyacetophenone were dissolved in 100 parts by weight of ethylene glycol monoethyl ether, and the solution was coated on the above polycarbonate resin plate in the same manner as in Example 1, and dried. This photocurable coating layer had a viscosity of 2300 poise at room temperature and exhibited some stickiness and plasticity at room temperature. Thereafter, a replica disk for information recording was manufactured in exactly the same manner as in Example 1. The information recording reproduction disc manufactured in this manner had good transfer of the unevenness of the master disc, formed sharp pits, and provided a good image as a video disc.

なお、実斜䟋〜で埗られた耇補デむスクは
光硬化性被芆局を圢成する材料のはみだしは党く
芳察されなか぀た。
In addition, in the duplicate disks obtained in Examples 1 to 5, no protrusion of the material forming the photocurable coating layer was observed.

Claims (1)

【特蚱請求の範囲】[Claims]  プラスチツク又はガラス板䞊に、垞枩におけ
る粘床が2000ポむズ以䞊で䞔぀垞枩又は100℃以
䞋で可塑性を有する光硬化性被芆局を圢成し、光
硬化性被芆局を、埮现な凹凞の刻たれたスタンパ
ヌに重ね合わせお加圧成型し、プラスチツク又は
ガラス板面から玫倖線を照射しお該被芆局を硬化
させた埌スタンパヌを脱型するこずを特城ずする
情報蚘録甚耇補デむスクの補造法。
1. Form a photocurable coating layer on a plastic or glass plate with a viscosity of 2000 poise or more at room temperature and plasticity at room temperature or below 100°C, and apply the photocurable coating layer to a stamper with fine irregularities. 1. A method for manufacturing a reproduction disc for information recording, which comprises: superimposing the coating layer on the plastic or glass plate, curing the coating layer by irradiating ultraviolet rays from the surface of the plastic or glass plate, and then removing the stamper from the mold.
JP14934580A 1980-10-27 1980-10-27 Production of duplicate disk for information recording Granted JPS5772823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14934580A JPS5772823A (en) 1980-10-27 1980-10-27 Production of duplicate disk for information recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14934580A JPS5772823A (en) 1980-10-27 1980-10-27 Production of duplicate disk for information recording

Publications (2)

Publication Number Publication Date
JPS5772823A JPS5772823A (en) 1982-05-07
JPH0314614B2 true JPH0314614B2 (en) 1991-02-27

Family

ID=15473081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14934580A Granted JPS5772823A (en) 1980-10-27 1980-10-27 Production of duplicate disk for information recording

Country Status (1)

Country Link
JP (1) JPS5772823A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101198903B (en) * 2005-06-10 2011-09-07 奥莝蟟克特公叞 Pattern replication with intermediate stamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333244A (en) * 1976-09-09 1978-03-29 Kanegafuchi Chem Ind Co Ltd Apparatuses for preparating coagulated latexes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5333244A (en) * 1976-09-09 1978-03-29 Kanegafuchi Chem Ind Co Ltd Apparatuses for preparating coagulated latexes

Also Published As

Publication number Publication date
JPS5772823A (en) 1982-05-07

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