JPS6311661B2 - - Google Patents

Info

Publication number
JPS6311661B2
JPS6311661B2 JP1586584A JP1586584A JPS6311661B2 JP S6311661 B2 JPS6311661 B2 JP S6311661B2 JP 1586584 A JP1586584 A JP 1586584A JP 1586584 A JP1586584 A JP 1586584A JP S6311661 B2 JPS6311661 B2 JP S6311661B2
Authority
JP
Japan
Prior art keywords
vinyl acetate
light
vinyl chloride
film
shielding
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
Application number
JP1586584A
Other languages
Japanese (ja)
Other versions
JPS60159853A (en
Inventor
Shoji Sugiura
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.)
ROKUO SHOJI KK
Original Assignee
ROKUO SHOJI KK
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 ROKUO SHOJI KK filed Critical ROKUO SHOJI KK
Priority to JP59015865A priority Critical patent/JPS60159853A/en
Publication of JPS60159853A publication Critical patent/JPS60159853A/en
Publication of JPS6311661B2 publication Critical patent/JPS6311661B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/68Preparation processes not covered by groups G03F1/20 - G03F1/50

Description

【発明の詳細な説明】[Detailed description of the invention]

〔産業上の利用分野〕 本発明は遮光性マスキングフイルム、特に遮光
性、皮膜性、耐老化性および易剥離性の改良され
た剥離層をプラスチツクス支持体上に設けてなる
遮光性マスキングフイルムに関する。 〔従来技術〕 従来、マスキングフイルムの剥離層の材質とし
ては、塩化ビニル樹脂、塩化ビニル系共重合体、
ニトロセルローズ、アセチルセルローズ等の樹脂
の他に可塑剤等が使用されているが、剥離層の表
面のべとつきが大きく、且つ剥離強度が小さく、
作業性に難点があつた。 そして、このような欠点を改良するために、ポ
リウレタン樹脂と酢酸繊維素樹脂の混合樹脂を使
用することも特公昭51−25478号公報で提案され
ているが、未だ十分ではなかつた。 〔発明の目的〕 本発明は上記欠点を解消するためになされたも
ので、必要部分を剥離することにより直ちに写真
製版用に用いる種々の原図を作製するために、従
来のフイルムに較べ、柔軟性があつて、剥離性に
優れ、かつ表面のべとつきがなく、又、必要部分
のカツテイングの際、簡単に切断ができ、かつ切
れ味が良く、精密な写実体を得るのに優れた遮光
性マスキングフイルムを提供することを目的とす
る。 〔発明の構成〕 本発明の遮光性マスキングフイルムは、上記目
的を達成するために、エチレン・酢酸ビニル・一
酸化炭素の三元共重合体と、塩化ビニル系樹脂又
は塩化ビニル・酢酸ビニル共重合体から選ばれる
樹脂と、遮光性の染顔料との3成分を溶液状態で
混合し、該混合物をプラスチツク支持体上に設け
て剥離層を形成したものである。 以下本発明を更に詳しく説明する。 まず、本発明で使用されるプラスチツクス支持
体としては、例えばポリエチレンテレフタレー
ト、ポリブチレンテレフタレート、ポリオキシベ
ンゾエートなどのポリエステルフイルムあるいは
ポリカーボネートフイルム等であつて、延伸又は
無延伸フイルムが挙げられる。 エチレン・酢酸ビニル・一酸化炭素の三元共重
合体はプラスチツクス支持体に良好な接着性を有
する物質である。 また、塩化ビニル系樹脂及び塩化ビニル・酢酸
ビニル共重合体は前記エチレン・酢酸ビニル・一
酸化炭素の三元共重合体と相溶性があり、かつ混
合した場合に室温でべとつきがない。 そして、これらの樹脂のうち最も好ましいのは
塩化ビニル・酢酸ビニル共重合体であり、塩化ビ
ニルモノマーと酢酸ビニルモノマーの共重合比は
重量比で91〜83:9〜17の範囲が好ましい。又、
塩化ビニル・酢酸ビニルの共重合体に、ポリビニ
ルアルコールやマレイン酸の入つた三元共重合体
であつてもよい。 エチレン・酢酸ビニル・一酸化炭素の三元共重
合体と塩化ビニル・酢酸ビニル共重合体との混合
比は固形分重量で10:90〜60:40の範囲で、好ま
しくは20:80〜50:50である。混合比で10:90よ
りもエチレン・酢酸ビニル・一酸化炭素の三元共
重合体が少なくなるとプラスチツクス支持体との
接着が悪く、剥離層が簡単に剥れてしまう。逆に
60:40よりも大きくなると、剥離層の伸度が大き
くなり、作業が困難になる。 本発明の製造方法の一例を述べると、エチレ
ン・酢酸ビニル・一酸化炭素の三元共重合体とこ
れを相溶し、かつ室温でべとつきのない塩化ビニ
ル系樹脂又は塩化ビニル・酢酸ビニル共重合体か
ら選ばれる樹脂を有機溶剤に溶解し、着色剤を添
加混合した後、公知の方法でプラスチツクス支持
体上に塗布乾燥すれば良い。 着色剤としては、染料又は顔料および染料と顔
料との混合物を使用することができ、染料として
はオイル可溶型染料であつて、エチレン・酢酸ビ
ニル・一酸化炭素の三元共重合体と塩化ビニル系
樹脂又は塩化ビニル・酢酸ビニル共重合体との混
合樹脂に対して良好な相溶性と熱及び紫外線に対
し色調の変化の少ないものであり、遮光性フイル
ムとしての遮光性を満たすものであれば、染料の
色調や構造について限定するものでない。 溶剤としては、メチルエチルケトン、メチルイ
ソブチルケトン、テトラヒドロフラン、シクロヘ
キサノン酢酸エチル、塩化メチレン等が使用でき
る。 希釈剤としては、トルエン、キシレン等が使用
できる。又、本発明の遮光性マスキングフイルム
は遮夫層の光の反射を防止する目的でつや消し加
工を適宜施すことができる。つや消し加工の方法
としては、剥離層の材質にシリカ等の無機粉末を
混合する方法、あるいは、剥離層上に剥離層の材
質と無機粉末との混合物を上塗りする方法等があ
るが、上塗りする方が無機粉末の使用量が少なく
てすみ効果的である。又、上塗りする場合、着色
剤は使用してもしなくても良い。 上記のつや消し加工のためのシリカ等の無機粉
末の添加量は、上記のいずれの方法を用いるにし
ても樹脂固形分100重量部に対し10〜50重量部で
あることが好ましい。 〔実施例〕 次に本発明を実施例1〜6および比較例1、2
により具体的に説明する。 二軸延伸したポリエチレンテレフタレートフイ
ルムに、良好に接着するエチレン・酢酸ビニル・
一酸化炭素の三元共重合体である米国デユポン社
製のエルバロイ741又は742と、これと相溶し、室
温でべとつきのない物質として塩化ビニル/酢酸
ビニル(Vc/VAc)=87/13(重量比)の共重合
体である積水化学工業株式会社製のエスレツクC
との混合物をメチルエチルケトン/テトラヒドロ
フラン(MEK/THF)=2/1(重量比)に溶解
し、遮光性染料である保土谷化学工業株式会社製
のスピロンレツド及びオレンジを混合した溶液を
調製し塗布液とした。 上記各成分の配合比は表に示す通りである。該
塗布液を100μの厚味を有する二軸延伸ポリエチ
レンテレフタレートフイルム上にロールコーター
により塗布し、オーブン中で1分間乾燥し、全体
が125μでルビー色の透明フイルムを得た。該フ
イルムは分光光度計により光線透過度の測定の結
果、220〜560ナノメーターの光線を透過せず、い
ずれも良好な遮光性を有していた。又、実施例1
〜5のフイルム表面はべとつきがなく、実施例2
〜5のフイルムベースと塗布膜とは適当な剥離強
度を有していた。さらに、ガラスの上に乾燥後24
時間経過後のフイルムを載せ、その表面にポリエ
ステルフイルムをかぶせて上から70g/cm2で加圧
した場合に、実施例1〜5のフイルム表面には転
写マークはつかなかつた。 なお、比較例1では剥離強度が劣り、比較例2
では時間の経過と共に表面のべとつきが生じた。 以上、実施例1〜6で見られる如く、剥離強度
は樹脂の配合比を変えることにより調節可能であ
ることが判る。 実施例1〜6、比較例1、2の結果を表にまと
めて示す。
[Industrial Application Field] The present invention relates to a light-shielding masking film, particularly a light-shielding masking film comprising a release layer with improved light-shielding properties, film properties, aging resistance, and easy peelability provided on a plastic support. . [Prior art] Conventionally, materials for the release layer of masking films include vinyl chloride resin, vinyl chloride copolymer,
In addition to resins such as nitrocellulose and acetylcellulose, plasticizers are used, but the surface of the release layer is highly sticky and the peel strength is low.
There was a problem with workability. In order to improve these drawbacks, the use of a mixed resin of polyurethane resin and cellulose acetate resin was also proposed in Japanese Patent Publication No. 51-25478, but this was not yet sufficient. [Object of the Invention] The present invention has been made to solve the above-mentioned drawbacks, and is more flexible than conventional films in order to immediately prepare various original images for use in photolithography by peeling off the necessary parts. A light-shielding masking film that has excellent removability, has a non-sticky surface, can be easily cut when cutting the required part, has good sharpness, and is excellent for obtaining precise photographic objects. The purpose is to provide [Structure of the Invention] In order to achieve the above object, the light-shielding masking film of the present invention comprises a ternary copolymer of ethylene, vinyl acetate, and carbon monoxide, and a vinyl chloride-based resin or a vinyl chloride/vinyl acetate copolymer. Three components, a resin selected from the combination and a light-shielding dye and pigment, are mixed in a solution state, and the mixture is placed on a plastic support to form a release layer. The present invention will be explained in more detail below. First, the plastic support used in the present invention includes, for example, polyester films such as polyethylene terephthalate, polybutylene terephthalate, and polyoxybenzoate, or polycarbonate films, which may be stretched or non-stretched. A terpolymer of ethylene, vinyl acetate, and carbon monoxide is a material that has good adhesion to plastic supports. Further, the vinyl chloride resin and the vinyl chloride/vinyl acetate copolymer are compatible with the ethylene/vinyl acetate/carbon monoxide ternary copolymer, and do not become sticky at room temperature when mixed. Of these resins, vinyl chloride/vinyl acetate copolymer is most preferred, and the copolymerization ratio of vinyl chloride monomer and vinyl acetate monomer is preferably in the range of 91 to 83:9 to 17 by weight. or,
A terpolymer containing polyvinyl alcohol or maleic acid in a vinyl chloride/vinyl acetate copolymer may also be used. The mixing ratio of the terpolymer of ethylene/vinyl acetate/carbon monoxide and the vinyl chloride/vinyl acetate copolymer is in the range of 10:90 to 60:40 by solid weight, preferably 20:80 to 50. :50. If the mixing ratio of the terpolymer of ethylene, vinyl acetate, and carbon monoxide is less than 10:90, the adhesion to the plastic support will be poor and the release layer will peel off easily. vice versa
When the ratio is greater than 60:40, the elongation of the release layer increases, making the work difficult. An example of the production method of the present invention is to make a ternary copolymer of ethylene, vinyl acetate, and carbon monoxide and a vinyl chloride-based resin or a vinyl chloride-vinyl acetate copolymer that is compatible with the terpolymer and non-sticky at room temperature. The resin selected from the group may be dissolved in an organic solvent, a coloring agent may be added and mixed, and then the resin may be coated on a plastic support and dried by a known method. As the coloring agent, dyes, pigments, and mixtures of dyes and pigments can be used.The dyes include oil-soluble dyes, such as terpolymer of ethylene, vinyl acetate, and carbon monoxide, and chloride. It has good compatibility with vinyl resins or mixed resins with vinyl chloride/vinyl acetate copolymers, has little change in color tone against heat and ultraviolet rays, and satisfies the light-shielding properties of a light-shielding film. For example, there are no limitations on the color tone or structure of the dye. As the solvent, methyl ethyl ketone, methyl isobutyl ketone, tetrahydrofuran, cyclohexanone ethyl acetate, methylene chloride, etc. can be used. As the diluent, toluene, xylene, etc. can be used. Further, the light-shielding masking film of the present invention can be suitably subjected to a matte finish for the purpose of preventing light reflection from the shielding layer. The matte finish can be achieved by mixing inorganic powder such as silica with the material of the release layer, or by overcoating the release layer with a mixture of the release layer material and inorganic powder. However, it is effective because the amount of inorganic powder used is small. Further, when applying a top coat, a coloring agent may or may not be used. The amount of inorganic powder such as silica added for the matting process is preferably 10 to 50 parts by weight based on 100 parts by weight of the resin solid content, regardless of which method is used. [Example] Next, the present invention was described in Examples 1 to 6 and Comparative Examples 1 and 2.
This will be explained more specifically. Ethylene/vinyl acetate that adheres well to biaxially stretched polyethylene terephthalate film.
Vinyl chloride/vinyl acetate (Vc/VAc) = 87/13 (vinyl chloride/vinyl acetate (Vc/VAc) Eslec C manufactured by Sekisui Chemical Co., Ltd., which is a copolymer of
A mixture of methyl ethyl ketone/tetrahydrofuran (MEK/THF) = 2/1 (weight ratio) was prepared, and a solution was prepared by mixing the light-shielding dye Spiron Red manufactured by Hodogaya Chemical Co., Ltd. and orange. did. The blending ratio of each of the above components is as shown in the table. The coating liquid was applied using a roll coater onto a biaxially oriented polyethylene terephthalate film having a thickness of 100 μm, and dried in an oven for 1 minute to obtain a ruby-colored transparent film having a thickness of 125 μm as a whole. As a result of measuring the light transmittance of the film using a spectrophotometer, it did not transmit light of 220 to 560 nanometers, and had good light blocking properties. Also, Example 1
The surface of the film of ~5 was non-sticky, and the film surface of Example 2
The film base and coating film of Samples No. 5 to 5 had appropriate peel strength. Further, after drying on the glass 24
When the film after the lapse of time was placed, a polyester film was placed over the surface, and a pressure of 70 g/cm 2 was applied from above, no transfer mark was left on the film surface of Examples 1 to 5. Note that Comparative Example 1 had poor peel strength, and Comparative Example 2
The surface became sticky over time. As seen in Examples 1 to 6, it is clear that the peel strength can be adjusted by changing the blending ratio of the resins. The results of Examples 1 to 6 and Comparative Examples 1 and 2 are summarized in a table.

〔発明の効果〕〔Effect of the invention〕

本発明は如上のような3成分混合物よりなる剥
離層をプラスチツクス支持体上に設けて遮光性マ
スキングフイルムを形成したから、柔軟性があつ
て、剥離性に優れ、かつ表面のべとつきがないと
共に、写真製版用に用いる種々の原図を作製する
ため必要部分のカツテイングの際、簡単に切断が
でき、かつ切れ味が良く、精密な写実体を得るこ
とができる。
In the present invention, a light-shielding masking film is formed by providing a release layer made of a three-component mixture as described above on a plastic support, so that it has flexibility, excellent releasability, and has no sticky surface. When cutting the necessary parts to produce various original drawings used for photoengraving, it is possible to easily cut, cut well, and obtain precise photorealistic objects.

Claims (1)

【特許請求の範囲】[Claims] 1 溶液状態で混合されたエチレン・酢酸ビニ
ル・一酸化炭素の三元共重合体と、塩化ビニル系
樹脂又は塩化ビニル・酢酸ビニル共重合体から選
ばれる樹脂と、遮光性の染顔料との3成分混合物
よりなる剥離層をプラスチツクス支持体上に設け
たことを特徴とする遮光性マスキングフイルム。
1 A ternary copolymer of ethylene, vinyl acetate, and carbon monoxide mixed in a solution state, a resin selected from a vinyl chloride resin or a vinyl chloride-vinyl acetate copolymer, and a light-shielding dye and pigment. A light-shielding masking film characterized in that a release layer made of a mixture of components is provided on a plastic support.
JP59015865A 1984-01-31 1984-01-31 Light shielding masking film Granted JPS60159853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59015865A JPS60159853A (en) 1984-01-31 1984-01-31 Light shielding masking film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59015865A JPS60159853A (en) 1984-01-31 1984-01-31 Light shielding masking film

Publications (2)

Publication Number Publication Date
JPS60159853A JPS60159853A (en) 1985-08-21
JPS6311661B2 true JPS6311661B2 (en) 1988-03-15

Family

ID=11900690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59015865A Granted JPS60159853A (en) 1984-01-31 1984-01-31 Light shielding masking film

Country Status (1)

Country Link
JP (1) JPS60159853A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2866386B2 (en) * 1989-01-18 1999-03-08 株式会社きもと Shading masking film
WO1996005056A1 (en) * 1994-08-10 1996-02-22 E.I. Du Pont De Nemours And Company Packaging seal layer

Also Published As

Publication number Publication date
JPS60159853A (en) 1985-08-21

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