JPH0324546A - Light-shielding masking film - Google Patents
Light-shielding masking filmInfo
- Publication number
- JPH0324546A JPH0324546A JP15912489A JP15912489A JPH0324546A JP H0324546 A JPH0324546 A JP H0324546A JP 15912489 A JP15912489 A JP 15912489A JP 15912489 A JP15912489 A JP 15912489A JP H0324546 A JPH0324546 A JP H0324546A
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding
- support
- vinyl chloride
- film
- 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.)
- Granted
Links
- 230000000873 masking effect Effects 0.000 title claims abstract description 20
- 229920001577 copolymer Polymers 0.000 claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000000806 elastomer Substances 0.000 claims abstract description 10
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 15
- 229920003002 synthetic resin Polymers 0.000 abstract description 8
- 239000000057 synthetic resin Substances 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229920000459 Nitrile rubber Polymers 0.000 abstract description 4
- 229920005989 resin Polymers 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000005060 rubber Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 239000008199 coating composition Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 5
- 239000000975 dye Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 229920005749 polyurethane resin Polymers 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229920000800 acrylic rubber Polymers 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、透明支持体上に遮光性剥離層を設けてなる遮
光性マスキングフィルムに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a light-shielding masking film comprising a light-shielding release layer provided on a transparent support.
遮光性マスキングフィルムは、透明なプラスチックスフ
ィルム支持体上に遮光性剥離層を設けてなるものである
から、当該剥離層を部分的に剥離することによって、剥
離された部分が透光性となるものであり、この特性を利
用して写真製版用などに用いられるものである。A light-shielding masking film is made by providing a light-shielding peeling layer on a transparent plastic film support, so by partially peeling off the peeling layer, the peeled part becomes translucent. This property is used for photoengraving and other purposes.
遮光性マスキングフィルムに要求される特性としては、
■剥離層の強度が高い、■プラスチックスフィルム支持
体の透光性が良好である、■剥離層の剥離性に優れてい
る、■カッターナイフにて剥離層部分に切れを入れても
非剥離部分に浮き上りが生じない、■カッターナイフに
よる剥離層の切り口がシャープである、■遮光性に優れ
ている、■柔軟性を有する、■表面べとつきがない、■
精密な写実体が得られる等があげられる。The characteristics required for a light-shielding masking film are:
■High strength of the release layer, ■Good translucency of the plastic film support, ■Excellent releasability of the release layer, ■No peeling even if the release layer is cut with a cutter knife. No lifting occurs in the part, ■The cut of the peeling layer with a cutter knife is sharp, ■Excellent light blocking properties, ■Flexibility, ■No surface stickiness,■
For example, a precise photographic entity can be obtained.
遮光性マスキングフィルムとして、たとえば特公昭５
１−２ ５ ４ ７ ８号には、ポリウレタン樹脂と酢
酸繊維素樹脂よりなる剥離層を有するものが開示されて
いるが、上記■〜■の全での特性を満足するものではな
い。For example, as a light-shielding masking film,
No. 1-2, 5, 4, 7, and 8 discloses a product having a release layer made of a polyurethane resin and acetic acid cellulose resin, but it does not satisfy all of the above characteristics (1) to (2).
特公昭５ ８ − ４ ６ ０ １ １号には、塩化ビ
ニルー酢酸ビニル共重合体とニトリルゴム（エラストマ
ー）を含有する剥離層を使用した遮光性マスキングフィ
ルムが、また特開昭６１−１２３３６号には、塩化ビニ
ルー酢酸ビニル共重合体とポリウレタン〈エラストマー
〉を含有する剥離層を使用した遮光性マスキングフィル
ムが開示されているが、塩化ビニルー酢酸ビニル共重合
体とエラストマーの混合比によってマスキングフィルム
の特性が大巾に変化し、たとえばエラストマーの割合が
多くなると剥離強度は大きくなるが、ブロッキング性（
ベトつき）を生じ易くなるという傾向があり、剥離時に
伸び易くなってしまうという欠点があった。さらに塩化
ビニルー酢酸ビニル共重合体の割合いが多くなると剥離
時に剥離層が破断し易くなるため剥離が困難となり、ま
た剥離層と支持体との接着力が低下するため、衝撃や歪
みにより剥離層が支持体から浮き上ったり、剥離脱落し
易くなるという欠点があり、塩化ビニル共重合体とエラ
ストマ一の混合比を調節してもマスキングフィルムに必
要とされる諸性質を十分に満足させることはできなかっ
た。Japanese Patent Publication No. 58-46011 discloses a light-shielding masking film using a release layer containing a vinyl chloride-vinyl acetate copolymer and nitrile rubber (elastomer); discloses a light-shielding masking film using a release layer containing vinyl chloride-vinyl acetate copolymer and polyurethane (elastomer), but the characteristics of the masking film depend on the mixing ratio of vinyl chloride-vinyl acetate copolymer and elastomer. For example, as the proportion of elastomer increases, the peel strength increases, but the blocking property (
It has the disadvantage that it tends to become sticky (stickiness) and tends to stretch when peeled off. Furthermore, when the proportion of vinyl chloride-vinyl acetate copolymer increases, the release layer becomes more likely to break during peeling, making it difficult to peel.Also, the adhesive strength between the release layer and the support decreases, so impact or distortion may cause the release layer to break. However, even if the mixing ratio of vinyl chloride copolymer and elastomer is adjusted, the properties required for a masking film cannot be sufficiently satisfied. I couldn't.
したがって本発明の目的は、剥離層のブロッキングおよ
びベトつきが無く、剥離が容易〈ビックアップ性が良く
、伸び過ぎや破断が起こらないこと〉であり、所要部分
を剥離した後のマスキングフィルムを種々取扱い作業中
に、マスキングフィルムに与えられる衝撃や歪みなどに
より非剥離部分の剥離層が支持体から浮き上ったり、剥
離脱落することがない遮光性マスキングフィルムを提供
することである。Therefore, the purpose of the present invention is to provide a release layer that is free from blocking and stickiness, and is easy to remove (good shock-up properties, and does not cause overstretching or breakage). To provide a light-shielding masking film in which a non-peelable part of a peeling layer does not lift up from a support or peel off due to impact or distortion applied to the masking film during handling work.
上記目的は、透明支持体上に、
（Ａ）塩化ビニル−マレイン酸共重合体と、（Ｂ）エラ
ストマーと、
（Ｃ）′着色剤
とを含有する遮光性剥離層を設けたことを特徴とする遮
光性マスキングフィルムにより達成される。The above object is characterized in that a light-shielding release layer containing (A) a vinyl chloride-maleic acid copolymer, (B) an elastomer, and (C) a colorant is provided on a transparent support. This is achieved by using a light-shielding masking film.
以下本発明を詳細に説明する。The present invention will be explained in detail below.
本発明の遮光性マスキングフィルムを構成する透明支持
体としては、ポリエチレンテレフタレート、ポリブチレ
ンテレフタレートなどのポリエステル、脂肪族又は芳香
族ポリアミド、ポリエチレン、ポリプロピレンなどのポ
リオレフィン、ポリスチレン、ポリカーボネート、ポリ
塩化ビニル、ポリ塩化ビニリデンなどからなる合戊樹脂
フィルム、セルロースアセテートなどの半合或樹脂フィ
ルム、合戊樹脂フィルム同志、合或樹脂フィルムと半合
成樹脂フィルム、さらには、合戊樹脂フィルムおよび／
または半合或樹脂フィルムと紙とのラミネートフィルム
等をあげることができる。The transparent support constituting the light-shielding masking film of the present invention includes polyesters such as polyethylene terephthalate and polybutylene terephthalate, aliphatic or aromatic polyamides, polyolefins such as polyethylene and polypropylene, polystyrene, polycarbonate, polyvinyl chloride, and polychloride. Synthetic resin films made of vinylidene, semi-synthetic resin films such as cellulose acetate, synthetic resin films, synthetic resin films and semi-synthetic resin films, and synthetic resin films and/or synthetic resin films.
Alternatively, a laminate film of a semi-laminated film or a resin film and paper may be used.
この支持体は、無色透明のものが好適である。This support is preferably colorless and transparent.
上記の内でもポリエチレンテレフタレートフィルムは、
引張り、引裂き強度が大きく、寸法安定性にすぐれてい
ることから、とくに好ましい。この支持体は、厚さが５
０−２ ５ ０μｍのものがよい。Among the above, polyethylene terephthalate film is
It is particularly preferred because it has high tensile and tear strength and excellent dimensional stability. This support has a thickness of 5
A thickness of 0-250 μm is preferable.
この支持体を構戊するフィルムは、その製法からみた場
合、延伸、無延伸のいずれでもよい。The film constituting this support may be either stretched or non-stretched from the viewpoint of its production method.
塩化ビニル−マレイン酸共重合体の共重合割合は、塩化
ビニル６０〜９５重量％、好ましくは７０〜９０重量％
、マレイン酸４０〜５重量％、好ましくは３０〜１０重
量％が適当である。The copolymerization ratio of the vinyl chloride-maleic acid copolymer is 60 to 95% by weight of vinyl chloride, preferably 70 to 90% by weight.
, 40-5% by weight, preferably 30-10% by weight of maleic acid.
エラストマーとしては、塩化ビニル−マレイン酸共重合
体と相溶性のよいゴム弾性体、たとえばニトリルゴム、
ポリウレタン樹脂、アクリルゴム、塩化ビニルーウレタ
ン共重合体などが使用される。As the elastomer, rubber elastic materials having good compatibility with the vinyl chloride-maleic acid copolymer, such as nitrile rubber,
Polyurethane resin, acrylic rubber, vinyl chloride-urethane copolymer, etc. are used.
ニトリルゴムとしては、ブタジエンとアクリロニトリル
を主成分とするものが用いられる。As the nitrile rubber, one whose main components are butadiene and acrylonitrile is used.
このようなものとしては、アクリロニトリルーブタジエ
ン共重合体、アクリ口ニトリルーブタジエンー共重合体
で他にカルボキシル基を含有する単量体を含む三元共重
合体樹脂等が挙げられる。Examples of such resins include acrylonitrile-butadiene copolymers, acrylonitrile-butadiene copolymers, and terpolymer resins containing monomers containing carboxyl groups.
本発明においては、アクリロニトリルの含有量が１８〜
５３重量％、好ましくは２５〜４３重量％の範囲にある
ものがよい。In the present invention, the content of acrylonitrile is 18 to
53% by weight, preferably in the range of 25-43% by weight.
ポリウレタン樹脂としては、ジインシアネート、トリイ
ソシアネート等とアジビン酸ポリエステル、ポリオキシ
ブロビレングリコール等より或るポリウレタン樹脂等が
挙げられる。Examples of the polyurethane resin include polyurethane resins made from diincyanate, triisocyanate, etc., adivic acid polyester, polyoxybrobylene glycol, etc.
アクリルゴムを構或するアクリル酸エステルとしては、
エチルエステル、ブチルエステルなどのアルキル《好ま
しくは、炭素数１〜４）エステルが好ましく、また他の
戊分としては、アクリ口ニトリルなどが配合される。ア
クリルゴムとしては、具体的にはアクリル酸プチルーア
クリロニトリル共重合体が例示され、その構或比は、ア
クリル酸ブチル８５〜９０重量％、アクリロニトリル１
５〜９．５重量％、２−ヒドロキシェチルメタクリレ−
｝ ０． ５〜２重量％であることが好ましい。Acrylic acid esters that make up acrylic rubber include:
Alkyl esters (preferably having 1 to 4 carbon atoms) such as ethyl ester and butyl ester are preferred, and other components include acrylonitrile and the like. A specific example of the acrylic rubber is butyl acrylate-acrylonitrile copolymer, with a composition ratio of 85 to 90% by weight of butyl acrylate, 1% by weight of acrylonitrile, and 1% by weight of butyl acrylate.
5-9.5% by weight, 2-hydroxyethyl methacrylate
} 0. It is preferably 5 to 2% by weight.
着色剤は、本発明の遮光性マスキングフィルムに遮光性
を付与するためのものであり、かかる着色剤としては、
染料および／または顔料を挙げることができる。The colorant is for imparting light-shielding properties to the light-shielding masking film of the present invention, and such colorants include:
Mention may be made of dyes and/or pigments.
染料としては、油溶性染料であって前記（Ａ）および（
Ｂ）戒分と相溶性が良好であり、かつ熱、光、その他の
要因で色調の変化や褪色の少ない、しかも必要な遮光性
を有するものであれば、その色調や染料４Ａ造について
特に限定されるものではない。The dyes include oil-soluble dyes such as (A) and (
B) If it has good compatibility with the precepts, does not change or fade in color due to heat, light, or other factors, and has the necessary light-shielding properties, there are no particular restrictions on the color or dye 4A composition. It is not something that will be done.
また、顔料としては、前記（Ａ）および（Ｂ）成分と相
溶性が良好であり、染料と同様の性能が満足されれば特
に限定されるものではない。Further, the pigment is not particularly limited as long as it has good compatibility with the components (A) and (B) and satisfies the same performance as the dye.
かかる着色剤の添加量は、着色剥離層の遮光性により適
宜決定されるが、通常、剥離層全体に対し２〜１００重
屋％、好ましくは５〜５０重量％程度である。The amount of the colorant added is appropriately determined depending on the light-shielding properties of the colored release layer, but is usually about 2 to 100% by weight, preferably about 5 to 50% by weight, based on the entire release layer.
塩化ヒニルーマレイン酸共重合体とエラストマーとの使
用割合（重量比〉は、５ ５／４ ５〜８５／１５、好
ましくは６ ０／４ ０〜７ ５／２ ５がよい。The ratio (weight ratio) of the chlorinated maleic acid copolymer to the elastomer is 55/45 to 85/15, preferably 60/40 to 75/25.
（Ａ）ｔ分の使用量が少なすぎると塗膜が柔らかくなり
、支持体への密着が強くなり、ピックアップ性が悪くな
る。また、重ねて置いた場合、ブロック状となり易い。(A) If the amount used for t is too small, the coating film will become soft, the adhesion to the support will be strong, and the pick-up property will be poor. Moreover, if they are placed one on top of the other, they tend to form a block shape.
さらに剥離しようとする塗膜が伸び易くなり剥離作業が
困難となる。Furthermore, the coating film to be removed tends to stretch, making the removal process difficult.
逆に（Ａ）戊分の使用量が、多過ぎると、支持体への密
着力が弱くなる上、剥離する塗膜が切れ易くなる。On the other hand, if the amount of (A) used is too large, the adhesion to the support becomes weak and the coating film that is peeled off becomes easy to break.
本発明のマスヰングフィルムは．，透明支持体の片面に
上記した成分組或からなる組戊物を任意の方法を採用し
て均一に塗布し、乾燥することにより得られる。遮光性
剥離層の厚さは、通常１０〜５０μｍ１好適には２０〜
３０μｍの範囲で十分である。この際、必要であれば、
適当な有機溶剤、例えば、アルコール系、ケトン系、エ
ステル系、炭化水素系、ハロゲン化炭化水素系、などの
有機溶剤が使用できる。The massing film of the present invention is. , by uniformly coating one side of a transparent support with a composition comprising the above-mentioned component composition by any method and drying. The thickness of the light-shielding release layer is usually 10 to 50 μm, preferably 20 to 50 μm.
A range of 30 μm is sufficient. At this time, if necessary,
Appropriate organic solvents, such as alcohol-based, ketone-based, ester-based, hydrocarbon-based, and halogenated hydrocarbon-based organic solvents, can be used.
さらに、前記組或物には、本発明の目的を阻害しない限
り、シリカのような艶消し剤、レベリング剤、プロッキ
ング防止剤、可塑剤、充填剤などを適宜配合することは
何ら差支えない。Furthermore, there is no problem in adding a matting agent such as silica, a leveling agent, an anti-locking agent, a plasticizer, a filler, etc. to the composition as long as it does not impede the object of the present invention.
本発明の遮光性マスキングフィルムは、剥離層のブロッ
キング及びベトつきが無く、剥離が容易であり、ピック
アップ性が良く、伸び過ぎや破断が起こらず、非剥離部
分の剥離層が支持体から｝早き上ったり、脱落すること
がない。The light-shielding masking film of the present invention has no blocking or stickiness in the release layer, is easy to peel, has good pick-up properties, does not overstretch or break, and can quickly remove the release layer from the support in non-release areas. It will not climb up or fall off.
厚さ１００μｍの２軸延伸ポリエチレンテレフタレート
フィルム支持体上に、下記表１に示す組或の剥離層形成
用組底物を塗布し、１１０℃で５分乾燥して、厚さ２５
μｍの遮光性剥離層を有する遮光性マスキングフィルム
を作製した。On a biaxially stretched polyethylene terephthalate film support with a thickness of 100 μm, a set of compositions for forming a release layer shown in Table 1 below was applied, and dried at 110° C. for 5 minutes to obtain a film with a thickness of 25 μm.
A light-shielding masking film having a μm-thick light-shielding release layer was produced.
これらのフィルムの性質を以下の試験方法により調べた
。結果を表ｌに示す。The properties of these films were investigated using the following test methods. The results are shown in Table 1.
試験方法
耐プロツヰング性
マスキングフィルムを、支持体であるポリエチレンテレ
フタレート面と遮光性剥離面が接するように重ね、温度
４０℃、相対湿度８０％雰囲気中に３０ｋｇ／ｍ’の荷
重をかけ、２４時間放置した。放置後のプロツキングの
状態を調べた。Test method: Layer the programming-resistant masking film so that the polyethylene terephthalate support surface and the light-shielding peeling surface are in contact with each other, apply a load of 30 kg/m' in an atmosphere at a temperature of 40°C and a relative humidity of 80%, and leave for 24 hours. did. The state of Plocking after being left unattended was investigated.
◎：ブロッキングが全く発生しない
○：ブロッキングが極く一部に発生
△：ブロッキングが２０〜５０％に発生×：ブロッキン
グが全体に発生
浮き上がり、剥離脱落性
３ｃｍ角の試料の遮光性剥離層を５ｍｍセクションにカ
ットして、試料の裏面を指ではじいて衝撃を与え、剥離
層の浮き上がり、剥離脱落状態を観察した。◎: Blocking does not occur at all ○: Blocking occurs in a very small portion △: Blocking occurs in 20 to 50% ×: Blocking occurs throughout the entire area Lifting and peeling properties Light-shielding peeling layer of a 3 cm square sample is removed by 5 mm After cutting into sections, the back side of the sample was flicked with a finger to give an impact, and the lifting of the release layer and the state of peeling and falling were observed.
○：浮き上がり、剥離脱落が発生しない△：浮き上がり
、剥離脱落が一部に発生するＸ：浮き上がり、剥離脱落
が全体に発生する剥離性
遮光性剥離層のカッターナイフによるビックアップ性の
よいもの、および剥離時に剥離層の伸び過ぎや破断が起
こらないものを総合的に判定する。○: No lifting, peeling or falling occurs △: Lifting, peeling or falling occurs in some parts Comprehensive judgment is made to ensure that the release layer does not overextend or break during peeling.
○：良好
△：可
×：不可
本発明の実施例１〜９では、耐ブロッキング性、浮き上
がり、剥離脱落性、剥離住いずれの点においてもすぐれ
た結果が得られている。シリカを添加した実施例２、４
及び６では、シリカを含まない実施例１、３及び５と比
較して耐ブロッキング性がさらに向上することがわかる
。塩化ビニル−マレイン酸共重合体の比率が低い比較例
１では耐ブロッキング性及び剥離性が不良であり、また
その比率が高い比較例２では耐プロツキング性は良好で
あるが、非剥離部の浮き上がりが発生する。○: Good △: Good ×: Not possible In Examples 1 to 9 of the present invention, excellent results were obtained in terms of blocking resistance, lifting, peeling/falling properties, and peeling properties. Examples 2 and 4 with silica added
It can be seen that in Examples 1, 3, and 5, which do not contain silica, the blocking resistance is further improved in Examples 1, 3, and 5, which do not contain silica. Comparative Example 1, which has a low ratio of vinyl chloride-maleic acid copolymer, has poor blocking resistance and peeling property, and Comparative Example 2, which has a high ratio of vinyl chloride-maleic acid copolymer, has good blocking resistance, but the non-peelable area is lifted. occurs.
さらに、塩化ビニル−マレイン酸共重合体の代りに塩化
ビニルー酢酸ビニル共重合体を使用した比較例３では耐
ブロッキング性が劣っており、非剥離部の浮き上がりが
・発生する。またこれにシリカを添加した比較例４では
、耐ブロッキング性は改良されるが、非剥離部の浮き上
がりは防止されない。Furthermore, in Comparative Example 3, in which a vinyl chloride-vinyl acetate copolymer was used instead of a vinyl chloride-maleic acid copolymer, the blocking resistance was poor, and lifting of the non-peelable area occurred. Furthermore, in Comparative Example 4 in which silica was added to this, the blocking resistance was improved, but lifting of the non-peelable portions was not prevented.
Claims (1)
５〜８５／１５である遮光性剥離層を設けたことを特徴
とする遮光性マスキングフィルム。[Claims] Containing (A) a vinyl chloride-maleic acid copolymer, (B) an elastomer, and (C) a colorant on a transparent support, the weight ratio of component (A) to component (B) is is 55/4
A light-shielding masking film characterized by providing a light-shielding release layer having a ratio of 5 to 85/15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159124A JPH0766177B2 (en) | 1989-06-21 | 1989-06-21 | Light-shielding masking film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1159124A JPH0766177B2 (en) | 1989-06-21 | 1989-06-21 | Light-shielding masking film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0324546A true JPH0324546A (en) | 1991-02-01 |
| JPH0766177B2 JPH0766177B2 (en) | 1995-07-19 |
Family
ID=15686760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1159124A Expired - Lifetime JPH0766177B2 (en) | 1989-06-21 | 1989-06-21 | Light-shielding masking film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0766177B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54104902A (en) * | 1978-02-01 | 1979-08-17 | Daicel Ltd | Lighttintercepting mask film |
| JPH01207753A (en) * | 1988-02-16 | 1989-08-21 | Somar Corp | Masking film |
-
1989
- 1989-06-21 JP JP1159124A patent/JPH0766177B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54104902A (en) * | 1978-02-01 | 1979-08-17 | Daicel Ltd | Lighttintercepting mask film |
| JPH01207753A (en) * | 1988-02-16 | 1989-08-21 | Somar Corp | Masking film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0766177B2 (en) | 1995-07-19 |
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