JPH01243251A - Optical disk and its manufacture - Google Patents

Optical disk and its manufacture

Info

Publication number
JPH01243251A
JPH01243251A JP63069075A JP6907588A JPH01243251A JP H01243251 A JPH01243251 A JP H01243251A JP 63069075 A JP63069075 A JP 63069075A JP 6907588 A JP6907588 A JP 6907588A JP H01243251 A JPH01243251 A JP H01243251A
Authority
JP
Japan
Prior art keywords
optical disc
protection
white
printing
protective layer
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.)
Pending
Application number
JP63069075A
Other languages
Japanese (ja)
Inventor
Ikuo Ozaki
郁夫 尾崎
Yoshio Nagashima
長嶋 良夫
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.)
Toppan Inc
Original Assignee
Toppan Printing Co Ltd
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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP63069075A priority Critical patent/JPH01243251A/en
Publication of JPH01243251A publication Critical patent/JPH01243251A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:To simplify the manufacturing process of an optical disk having the function of multiple color print by attaching the function of set-solid as a base to express gradation for the multiple color print on a protection layer by using a white mixed protective agent as protection liquid to form the protection film to protect the reflection film of the optical disk. CONSTITUTION:The bit shape 4 of an irregular part on which information is recorded is formed on a transparent disk substrate 1, and a signal part 4 with prescribed thickness made of aluminum is provided on the surface of the shape by using a sputtering or vapor-depositing machine. A protection ink layer 3 is coated on the signal part 4 by a spin coater. The protection ink layer 3 is constituted of the protective agent in which a white light filler is mixed, and the protection ink layer 3 is provided with the function of the set- solid as the base to express the gradation for the multiple color print, and level print 5 can be performed by the multiple color print.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は光学式ディスクに関し、特にその保護層に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an optical disc, and particularly to a protective layer thereof.

〈従来技術とその課題〉 一般にコンパクトディスク−ディジタルオーディオ(C
D−DA)、CI)−ROM、CD−1などをはしめと
するコンパクトディスクや光ディスク例えばDRAW、
E−DRAW、レーザーディスクなどの光学式読取ディ
スクでは、その内容を識別するために、信号の読取に支
障のない部分に内容を示すためのレーベルを貼付したり
、印刷したりしている。CDを例に説明をすると、保護
コート層上に内容物を表示するのをはしめ、製造者名、
歌手名、演奏者芯、演奏時間などを一色または、多色印
刷にて施している。
<Prior art and its problems> In general, compact disc-digital audio (C
Compact disks and optical disks such as D-DA), CI)-ROM, and CD-1, such as DRAW,
In order to identify the contents of optically readable disks such as E-DRAW and laser disks, labels are pasted or printed to indicate the contents in areas that do not interfere with signal reading. Taking a CD as an example, the content is displayed on the protective coating layer, and the manufacturer's name,
The singer's name, performer's name, performance time, etc. are printed in one color or in multiple colors.

この印刷は、一般には信号層を損傷しないように、少な
い印圧で印刷が施せるように、パッド印刷法またはスク
リーン印刷法に依ることが多く、主に一色か二色の線画
のものとなっている。
This printing generally relies on pad printing or screen printing to avoid damaging the signal layer and to print with low printing pressure, and is mainly one- or two-color line drawings. There is.

従来のレーベル印刷は、前述のように1色かせいぜい2
色の無階調のものであったが、差別化の要求から階調を
もったカラー印刷が要求されている。この場合色数は、
最低「黄」 「赤」 「藍Jの3色が必要であるが、好
ましくはもう1色「墨」を加え4色とするのが調子再現
上良好な結果が得られる。
Conventional label printing uses one color or at most two colors, as mentioned above.
Although it used to have no color gradation, color printing with gradation is now required due to the need for differentiation. In this case, the number of colors is
At least three colors are required: "yellow,""red," and "indigo J," but preferably one more color, "ink," is added to make the total four colors, as good results in terms of tone reproduction can be obtained.

ところが、印刷面の下地は、信号読取のための反射層(
AI薄膜)に保護コート層(10μm以下)が被覆され
ている構造で、この保護コート層は、無色透明であるた
めに、印刷面の下地は紙に印刷する場合と異なり、白色
ではなく鏡面になっている。
However, the base of the printed surface is a reflective layer (
It has a structure in which a protective coating layer (10 μm or less) is coated on an AI thin film.Since this protective coating layer is colorless and transparent, the base of the printing surface is not white, unlike when printing on paper, but has a mirror finish. It has become.

一般にカラー原稿の色分解は、白色地に印刷されること
を前提になされるために、白地以外に印刷するとカラー
バランスが崩れてしまうため、白地以外に印刷を行なう
時には、まず、素材上に白色のベタを印刷してその上に
3ないし4色を刷り重ねていくのが一般的であり、手間
のかかるめんどうな工程となっていた。
Generally, color separation of color originals is done on the assumption that it will be printed on a white background, so if you print on anything other than a white background, the color balance will be disrupted. It was common practice to print a solid color and then print three or four colors on top of it, which was a time-consuming and troublesome process.

〈課題を解決するための手段〉 本発明は以上の如くの現況に鑑みてなされたものであり
、反射膜を保護するための保護層を形成する保護液に白
色の充填剤を混合した保護液で(コーティング、または
印刷の1色目として作成する)ることにより、多色印刷
のための階調を表現するための下地としての白ベタの機
能を該保護層が有し、製造工程が簡単に多色印刷が設け
らる光学式ディスクを提供するものである。
<Means for Solving the Problems> The present invention has been made in view of the current situation as described above, and provides a protective liquid in which a white filler is mixed with a protective liquid that forms a protective layer for protecting a reflective film. (by coating or creating it as the first color in printing), the protective layer has the function of a solid white base to express gradation for multicolor printing, and the manufacturing process is simplified. An optical disc provided with multicolor printing is provided.

〈実施例〉 以下、本発明について図面を参照しながら詳細に説明す
る。
<Example> Hereinafter, the present invention will be described in detail with reference to the drawings.

光学式ディスクの一例としてのコンパクトディスクは、
第1図に示すごとく透明なディスク基板1に情報が記憶
された凹凸部のピント形状4を有し、その表面にスパッ
タリングまたは蒸着機を使用してアルミラムの反射層2
を1000人の厚さを設けている。この反射層2の表面
に通常は、アルミラムの酸化および情報信号を壊さない
ようにアクリル系樹脂を用いてスピンコータで保護膜3
をコーティングしている。また必要に応じてレーベル印
刷5が設けられである。
A compact disc is an example of an optical disc.
As shown in FIG. 1, a transparent disk substrate 1 has a concave and convex focusing shape 4 in which information is stored, and a reflective layer 2 of aluminum laminate is applied to the surface using a sputtering or vapor deposition machine.
We have established a thickness of 1000 people. A protective film 3 is usually applied to the surface of this reflective layer 2 using a spin coater using acrylic resin to prevent oxidation of the aluminum laminate and damage the information signal.
is coated. Further, label printing 5 is provided as required.

本発明は、この保護膜3をアクリル系樹脂にホワイトチ
タンを混合したインキを用いてスピンコータでコーティ
ングした。その厚みは、アルミニュームの酸化および情
報信号の破壊防止の効果を有することを考慮し、10μ
m程度にした。
In the present invention, this protective film 3 was coated using a spin coater using an ink containing a mixture of acrylic resin and white titanium. The thickness is 10 μm, considering that it has the effect of preventing oxidation of aluminum and destruction of information signals.
I made it about m.

この保護膜に用いるインキは、紫外線硬化型のアクリル
系樹脂とホワイトチタンを適切な割合で混合したインキ
である。
The ink used for this protective film is an ink that is a mixture of UV-curable acrylic resin and white titanium in an appropriate ratio.

なお、このインキは紫外線硬化型のものなら良くまた白
ベタに用いるものは、アクリル系樹脂と混合し、その適
性が良いものなら良い。
The ink may be of an ultraviolet curing type, and the ink used for white solids may be mixed with an acrylic resin, as long as it has good suitability.

このように本発明の保護層は、反射層2の酸化・を防止
し、情報信号のピットの破壊を防ぎ、しかも階調を表現
するための下地としての白ベタの役目をする。
As described above, the protective layer of the present invention prevents the reflective layer 2 from being oxidized, prevents the pits of the information signal from being destroyed, and also serves as a solid white base for expressing gradations.

また、該保護層をレーベル印刷の際のスクリーン印刷の
1色目白ベタとして構成することで、保護層形成の工程
がいらなくなる。
Further, by configuring the protective layer as a solid white screen as the first color of screen printing during label printing, the step of forming the protective layer is not necessary.

〈効果〉 本発明は、以上のごとくディスクのアルミニウム反射層
の酸化および情報信号のピットの破壊を防止し、しかも
レーベル印刷の多色刷りの下地としての白ベタの役目を
する光学式ディスクでありディスクの品質を保持し、し
かも高級的装飾性を有する効果を合せ持つ優れた光学式
ディスクとなるものである。
<Effects> As described above, the present invention is an optical disc that prevents oxidation of the aluminum reflective layer of the disc and destruction of information signal pits, and also serves as a solid white base for multicolor label printing. The present invention provides an excellent optical disc that maintains the same quality as above, and also has the effect of providing high-class decorative properties.

また、印刷の一色目として該保護層を形成することで保
護層を形成するための工程を一つ軽減できるので、経済
的にも良好であり、紫外線硬化の工程が一つ減るので硬
化収縮による反りの低減にもなる優れた光学式ディスク
となるものである。
In addition, by forming the protective layer as the first color in printing, it is possible to reduce the number of steps required to form the protective layer by one, which is economically advantageous. This results in an excellent optical disc that also reduces warping.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明による光学式ディスクを示す断面の説
明図である。 ■・・・・・・ディスク基板 2・・・・・・反射層 3・・・・・・保護インキ層(保護膜)4・・・・・・
信号部Cピット形状) 5・・・・・・レーベル印刷 特  許  出  願  人 凸版印刷株式会社 代表者 鈴木和夫 第1図
FIG. 1 is an explanatory cross-sectional view showing an optical disc according to the present invention. ■... Disc substrate 2... Reflective layer 3... Protective ink layer (protective film) 4...
Signal part C pit shape) 5...Label printing patent application Person Toppan Printing Co., Ltd. Representative Kazuo Suzuki Figure 1

Claims (1)

【特許請求の範囲】 1)透明樹脂層の一方の表面にピットが形成され、該ピ
ットに金属反射膜が設けられ、さらに保護層、レーベル
印刷が順に施された光学式ディスクにおいて、 該保護層は、白色の充填剤が混合された保護剤により構
成されてあり、該保護層は多色印刷のための階調を表現
するための下地としての白ベタの機能を有するようにな
っており、該レーベル印刷が多色印刷されてあることを
特徴とする光学式ディスク。 2)白色の充填剤が混合された保護剤により構成された
第1項記載の保護層はスピンコートされてなることを特
徴とする光学式ディスクの製造方法。 3)保護剤は紫外線硬化型のアクリル系樹脂とホワイト
チタンを適当な割合で混合されてなることを特徴とする
第1項記載の光学式ディスク。 4)白色の充填剤が混合された保護剤により構成された
第1項記載における保護層はレーベル印刷の1色目の白
ベタとして印刷により形成されることを特徴とする光学
式ディスクの製造方法。
[Claims] 1) An optical disc in which pits are formed on one surface of a transparent resin layer, a metal reflective film is provided on the pits, and a protective layer and label printing are sequentially applied, the protective layer comprising: is composed of a protective agent mixed with a white filler, and the protective layer has a solid white function as a base for expressing gradation for multicolor printing, An optical disc characterized in that the label is printed in multiple colors. 2) A method for manufacturing an optical disc, characterized in that the protective layer according to item 1, which is composed of a protective agent mixed with a white filler, is spin-coated. 3) The optical disc according to item 1, wherein the protective agent is a mixture of an ultraviolet curable acrylic resin and white titanium in an appropriate ratio. 4) A method for manufacturing an optical disc, characterized in that the protective layer according to item 1, which is composed of a protective agent mixed with a white filler, is formed by printing as a solid white color as the first color of label printing.
JP63069075A 1988-03-23 1988-03-23 Optical disk and its manufacture Pending JPH01243251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63069075A JPH01243251A (en) 1988-03-23 1988-03-23 Optical disk and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63069075A JPH01243251A (en) 1988-03-23 1988-03-23 Optical disk and its manufacture

Publications (1)

Publication Number Publication Date
JPH01243251A true JPH01243251A (en) 1989-09-27

Family

ID=13392097

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63069075A Pending JPH01243251A (en) 1988-03-23 1988-03-23 Optical disk and its manufacture

Country Status (1)

Country Link
JP (1) JPH01243251A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650162A1 (en) * 1993-10-26 1995-04-26 ODME International B.V. A method and a device for treating disc-shaped registration carriers
US7207645B2 (en) 2003-10-31 2007-04-24 Busch Brian D Printer color correction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650162A1 (en) * 1993-10-26 1995-04-26 ODME International B.V. A method and a device for treating disc-shaped registration carriers
NL9301846A (en) * 1993-10-26 1995-05-16 Od & Me Bv Method and device for printing disc-shaped record carriers.
US7207645B2 (en) 2003-10-31 2007-04-24 Busch Brian D Printer color correction

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