JPH07209848A - Light-shielding masking film - Google Patents
Light-shielding masking filmInfo
- Publication number
- JPH07209848A JPH07209848A JP6004438A JP443894A JPH07209848A JP H07209848 A JPH07209848 A JP H07209848A JP 6004438 A JP6004438 A JP 6004438A JP 443894 A JP443894 A JP 443894A JP H07209848 A JPH07209848 A JP H07209848A
- Authority
- JP
- Japan
- Prior art keywords
- light
- layer
- fluorescent substance
- shielding
- resin
- 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.)
- Withdrawn
Links
- 230000000873 masking effect Effects 0.000 title claims abstract description 29
- 239000010410 layer Substances 0.000 claims abstract description 130
- 239000000126 substance Substances 0.000 claims abstract description 80
- 229920005989 resin Polymers 0.000 claims abstract description 77
- 239000011347 resin Substances 0.000 claims abstract description 77
- 239000002985 plastic film Substances 0.000 claims abstract description 11
- 229920006255 plastic film Polymers 0.000 claims abstract description 11
- 239000012790 adhesive layer Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 description 24
- 238000000576 coating method Methods 0.000 description 24
- 239000000975 dye Substances 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 17
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 238000009472 formulation Methods 0.000 description 8
- 239000004793 Polystyrene Substances 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 229920000459 Nitrile rubber Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000020 Nitrocellulose Substances 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 3
- 239000007850 fluorescent dye Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001220 nitrocellulos Polymers 0.000 description 3
- 229920005596 polymer binder Polymers 0.000 description 3
- 239000002491 polymer binding agent Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 2
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 2
- -1 fluororesin Polymers 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920006122 polyamide resin Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 1
- GOLORTLGFDVFDW-UHFFFAOYSA-N 3-(1h-benzimidazol-2-yl)-7-(diethylamino)chromen-2-one Chemical compound C1=CC=C2NC(C3=CC4=CC=C(C=C4OC3=O)N(CC)CC)=NC2=C1 GOLORTLGFDVFDW-UHFFFAOYSA-N 0.000 description 1
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 101150010570 Higd1a gene Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- AUNGANRZJHBGPY-SCRDCRAPSA-N Riboflavin Chemical compound OC[C@@H](O)[C@@H](O)[C@@H](O)CN1C=2C=C(C)C(C)=CC=2N=C2C1=NC(=O)NC2=O AUNGANRZJHBGPY-SCRDCRAPSA-N 0.000 description 1
- PJANXHGTPQOBST-VAWYXSNFSA-N Stilbene Natural products C=1C=CC=CC=1/C=C/C1=CC=CC=C1 PJANXHGTPQOBST-VAWYXSNFSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- JPIYZTWMUGTEHX-UHFFFAOYSA-N auramine O free base Chemical compound C1=CC(N(C)C)=CC=C1C(=N)C1=CC=C(N(C)C)C=C1 JPIYZTWMUGTEHX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- YQGOJNYOYNNSMM-UHFFFAOYSA-N eosin Chemical compound [Na+].OC(=O)C1=CC=CC=C1C1=C2C=C(Br)C(=O)C(Br)=C2OC2=C(Br)C(O)=C(Br)C=C21 YQGOJNYOYNNSMM-UHFFFAOYSA-N 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 description 1
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- HRRDCWDFRIJIQZ-UHFFFAOYSA-N naphthalene-1,8-dicarboxylic acid Chemical compound C1=CC(C(O)=O)=C2C(C(=O)O)=CC=CC2=C1 HRRDCWDFRIJIQZ-UHFFFAOYSA-N 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
(57)【要約】
【目的】ライトテーブル上で原稿を容易に視認できるシ
ースルー性を有し、鮮明にカットラインを確認できる遮
光性マスキングフィルムを提供する。
【構成】プラスチックフィルム支持体１上に必要に応じ
て粘着剤層を設け、遮光性剥離層３を設けた遮光性マス
キングフィルムの、遮光性剥離層３に透明樹脂層４及び
蛍光性物質含有層５を順次設ける。透明樹脂層４を構成
する樹脂は、その屈折率が蛍光性物質含有層５の樹脂の
屈折率よりも低く、これにより蛍光物質により発生した
蛍光は蛍光性物質含有層５内で全反射を繰り返して、カ
ットライン部へ誘導され濃密化された状態で放出され
る。
(57) [Abstract] [Purpose] To provide a light-shielding masking film which has a see-through property that allows an original to be easily viewed on a light table and which can clearly confirm a cut line. [Structure] A transparent resin layer 4 and a fluorescent substance-containing layer in the light-shielding release layer 3 of a light-shielding masking film in which an adhesive layer is provided on a plastic film support 1 if necessary, and a light-shielding release layer 3 is provided. 5 are sequentially provided. The resin constituting the transparent resin layer 4 has a refractive index lower than that of the resin of the fluorescent substance-containing layer 5, whereby the fluorescence generated by the fluorescent substance repeats total reflection in the fluorescent substance-containing layer 5. Then, it is guided to the cut line portion and released in a dense state.
Description
【産業上の利用分野】本発明は、写真製版の集版工程時
のフィルム露光時において不要部分を遮光するのに用い
られる遮光性マスキングフィルムに関し、更に詳しくは
任意のパターンにカッティングした遮光性剥離層部分の
カットラインの視認性を向上した遮光性マスキングフィ
ルムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding masking film used for light-shielding unnecessary portions during film exposure during a photolithographic plate-making process, and more specifically, a light-shielding release film cut into an arbitrary pattern. The present invention relates to a light-shielding masking film having improved visibility of cut lines in layers.
【従来技術】従来、写真製版分野における集版工程にお
いて写真の合成等を行う際、露光時に露光不要部分等を
遮光するため剥離性を有する遮光性マスキングフィルム
が使用される。遮光性マスキングフィルムは遮光性剥離
層部分を任意のパターンにカッターや自動作図機等でカ
ッティングし、不要部分についてはカットラインを確認
しながら剥離するものである。しかしながら、そのカッ
トラインは鋭利刃によって形成された極めて細い線であ
るため、特に複雑なパターンや多色製版等に使用する場
合、非常に見づらいといった難点があり、そのため剥離
作業に多大の困難を生じていた。これらの問題を解決す
るものとして、プラスチックフィルム支持体上に順次遮
光性剥離層と蛍光性物質を含有するオーバーコート層を
設けたもの（特開昭６３―２９８２４７号公報）があ
る。2. Description of the Related Art Conventionally, a light-shielding masking film having a peeling property is used to shield a portion which is not exposed at the time of exposure when synthesizing a photograph in a plate collecting process in the field of photoengraving. The light-shielding masking film is formed by cutting the light-shielding release layer portion into an arbitrary pattern with a cutter, an automatic drawing machine or the like, and removing unnecessary portions while checking the cut line. However, since the cut line is an extremely thin line formed by a sharp blade, there is a difficulty that it is very difficult to see, especially when used for a complicated pattern or multicolor platemaking, and therefore a great difficulty occurs in the peeling work. Was there. As a solution to these problems, there is one in which a light-shielding release layer and an overcoat layer containing a fluorescent substance are sequentially provided on a plastic film support (Japanese Patent Laid-Open No. 63-298247).
【発明が解決しようとする課題】上記の遮光性マスキン
グフィルムは、着色剤含有の遮光性剥離層上に直接、蛍
光性物質を含有するオーバーコート層を設けた構成であ
るため、形成したカットラインの視認性を向上させるオ
ーバーコート層の蛍光が遮光性剥離層に吸収されて蛍光
不十分となり、コントラストが低く、カットラインの視
認性が不十分である。一方、コントラストを高くするに
は、着色層上に白色不透明の下地層を形成した後、蛍光
性物質を含有する層を設けることにより、反射による蛍
光を増大させることが考えられるが、このような構成で
はシースルー性がないため、ライトテーブル上で下の原
稿を視認することができない。本発明は、上記従来の問
題点を解消し、ライトテーブル上で原稿を容易に視認で
きるシースルー性を持ち、且つカットラインの視認性を
高め、作業性、コントラストを向上させた遮光性マスキ
ングフィルムを提供することを目的とする。Since the above-mentioned light-shielding masking film has a constitution in which an overcoat layer containing a fluorescent substance is directly provided on a light-shielding release layer containing a colorant, a cut line formed The fluorescence of the overcoat layer for improving the visibility is absorbed by the light-shielding release layer, resulting in insufficient fluorescence, low contrast, and the visibility of the cut line is insufficient. On the other hand, in order to increase the contrast, it is conceivable to increase the fluorescence due to reflection by forming a white opaque underlayer on the colored layer and then providing a layer containing a fluorescent substance. Since there is no see-through property in the configuration, the document below cannot be visually recognized on the light table. The present invention solves the above-mentioned conventional problems and provides a light-shielding masking film which has a see-through property for easily visually recognizing a document on a light table, enhances the visibility of a cut line, and improves workability and contrast. The purpose is to provide.
【課題を解決するための手段】本発明者らは、このよう
な目的を達成するために鋭意研究を重ねた結果、透明な
着色された遮光性剥離層上に、後述する蛍光性物質含有
層の樹脂の屈折率より屈折率の低い樹脂からなる透明樹
脂層を介して蛍光性物質含有層を設けたものが、シース
ルー性を損なうことなく且つ目視識別するのに十分な蛍
光を生じることを見い出し本発明を完成するに至った。
即ち、本発明によれば、プラスチックフィルム支持体上
に粘着剤層を介して或いは直接遮光性剥離層を設けた遮
光性マスキングフィルムにおいて、遮光性剥離層上に、
透明樹脂層と蛍光性物質含有層を順次積層してなり、且
つ蛍光性物質含有層の樹脂の屈折率が透明樹脂層の樹脂
の屈折率より大きい遮光性マスキングフィルムが提供さ
れる。以下、本発明について具体的に説明する。プラス
チックフィルム支持体としては、ポリエステル、ポリカ
ーボネート、トリアセチルセルロース、ポリ塩化ビニ
ル、アクリル、ポリスチレン、ポリアミド、ポリイミド
等の透明フィルムが使用される。本発明において、プラ
スチックフィルム支持体上に形成する遮光性剥離層は、
マスキングフィルムとともに使用される感光性フィルム
等の感光する波長領域を効率よく遮光するために遮光性
物質を含むものである。遮光性物質としては、通常、染
料、顔料等の着色剤が用いられるが、活性光線の透過を
遮断し得るものであれば任意のものを用いることができ
る。また遮光性剥離層には、遮光性物質の他、合成ゴム
や合成樹脂等の高分子物質をバインダー成分として含む
ものであるが、遮光性剥離層の具体的な構成は従来良く
知られており、従来公知の技術に従って構成することが
できる。この遮光性剥離層を構成する組成物としては、
例えばニトリルゴムと塩化ビニル―塩化ビニリデン共重
合体と遮光性物質と必要に応じて任意の添加剤からなる
もの、或いはニトリルゴムと塩化ビニル―酢酸ビニル共
重合体と遮光性物質と必要に応じて任意の添加剤とから
なるもの等を挙げることができる。また、本発明は、い
わゆる再剥離タイプと呼ばれている遮光性マスキングフ
ィルムにも適用できる。これはプラスチックフィルム支
持体上に、粘着剤層を介して、遮光性剥離層が積層され
ているものである。この場合、プラスチックフィルム支
持体上に設けられる粘着剤層は、合成樹脂系及びゴム系
の粘着剤が使用可能である。合成樹脂系としてはアクリ
ル酸エステル共重合体、飽和ポリエステル共重合体、ポ
リウレタン等、ゴム系としては、天然ゴム、クロロプレ
ンゴム、ネオプレンゴム、ニトリルゴム、スチレン−イ
ソプレンゴム等が使用可能である。再剥離タイプの遮光
性剥離層も、従来公知であり、例えば、エチレン−酢酸
ビニル共重合体、ニトロセルロース、遮光性物質、可塑
剤等からなるもの、ニトリルゴム、ニトロセルロース、
粘着改質剤、遮光性物質等からなるものを挙げることが
できる。透明樹脂層と蛍光性物質含有層は、本発明の遮
光性マスキングフィルムにおいて、カットラインにコン
トラストの高い蛍光を生じさせ、剥離作業性を向上させ
るために形成される。透明樹脂層に用いられる樹脂とし
ては、蛍光性物質の吸収光、放射光を阻害しないような
光学的性質を持ち、蛍光性物質含有層に使用される樹脂
の屈折率より低い屈折率を持つ樹脂が用いられる。例え
ば酢酸ビニル樹脂、フッ素樹脂、アクリル樹脂、ポリエ
チレン樹脂、ポリエステル樹脂、ポリビニルアルコー
ル、ポリビニルブチラール、メラミン樹脂、ウレタン樹
脂、セルロース樹脂、ポリアミド樹脂、塩化ビニル樹
脂、エポキシ樹脂、ＡＢＳ樹脂、ポリアセタール、これ
らの共重合体樹脂及び変性樹脂などの合成樹脂が使用さ
れる。蛍光性物質含有層は、高分子バインダーと蛍光性
物質とからなり、高分子バインダーとしては、蛍光性物
質の吸収光、放射光を阻害しないような光学的性質を持
ち、透明樹脂層に使用される樹脂の屈折率より大きな屈
折率のものが用いられる。例えば、ポリスチレン樹脂、
塩化ビニル樹脂、塩化ビニリデン樹脂、ポリカーボネー
ト樹脂、メラミン樹脂、アクリル樹脂、ユリア樹脂、ポ
リアミド樹脂、ポリエチレン樹脂、ポリプロピレン樹
脂、これらの変性樹脂、共重合体等の合成樹脂が使用で
きる。蛍光性物質としては、通常、可視光ないし紫外光
を吸収し、可視光波長の蛍光を発生するもの、好ましく
は可視光中の紫、青、緑等の光線を受けてそれよりも長
い波長の蛍光を発生するものが用いられる。このような
蛍光性物質は従来良く知られており、一般には蛍光染
料、集光染料、蛍光顔料、蛍光増白剤、発光性色素等が
用いられる。例えば、ピレン系、アントラセン系、ペリ
ノン系、アントラキノン系、フルオレセイン系、ウラニ
ン系、エオシン系、ローダミン系、スチルベン系、フラ
ビン系、クマリン系、オーラミン系、アクリジン系、ナ
フタル酸系、ナフタレン系、フェナントリジューム系、
インドール系、イミダゾール系、ボロン錯塩系、チオイ
ンジコ等の有機系のものが用いられるが、場合によって
は無機系のものも用いることができる。中でも発光効率
の良い集光染料を使用することが好ましい。集光染料
は、蛍光染料の一種であるが、吸収波長域と発光波長域
の重なる程度が少なく、染料の自己吸収は殆ど起こらな
いために蛍光の程度が強くなっている。また、非常に耐
候性の良い染料として位置付けられている。この性能の
ために染料は非常に精製度が高い状態になっている。集
光染料としては、例えば、Ｌｕｍｏｇｅｎ Ｆ（ＢＡＳ
Ｆ社製）、発光性色素ＥＢ−５０１、ＥＧ−３０２、Ｅ
Ｒ−１０７（共に三井東圧染料社製）等が挙げられる。
このような集光染料を使用することにより、カットライ
ンの視認性をさらに高めることができる。これらの膜厚
は厚い方が視認性は良好となるが、カッティング適性、
皮膜物性、色目等の面からは薄い方が好ましく、両者の
妥協点を見つけることとなる。透明樹脂層で０．１〜１
０μｍ、蛍光性物質含有層では２〜１５μｍの範囲が好
ましい。これより各層の膜厚が薄いと、蛍光性物質の含
有量を高くしても、カットラインは蛍光を殆ど生じず、
鮮明に見ることが困難である。またこれより各層の膜厚
が厚いと前記のような欠点が生じてくる。また蛍光性物
質の濃度は樹脂に対して０．００１〜１０重量％の範囲
が好ましい。このような範囲とすることにより、十分な
蛍光が発生し、光輝性の色を得ることができる。また、
集光染料を使用する場合には、その発光効率が良好であ
るために、その添加量を少なくできる利点がある。この
ことによって、透明樹脂層及び蛍光性物質含有層の膜厚
を薄くすることができ、カッティング適性、皮膜物性、
色目等の性能を低下させずに視認性を維持することがで
きるようになる。更に、集光染料を使用する場合には、
その性質上、蛍光性物質含有層には他の添加物質はでき
るかぎり混合しない方が発光効率が良好となる。本発明
においては、蛍光性物質含有層の樹脂の屈折率ｎ1は透
明樹脂層の樹脂の屈折率ｎ2より大きい構成とする。通
常、蛍光性物質含有層の蛍光性物質は、周囲の光線を吸
収して蛍光を発生している。この蛍光性物質含有層にカ
ットラインを施した時、十分な視認性をもたせるために
は、発生した蛍光が蛍光性物質含有層内で全反射を繰り
返して切り口部へ誘導され、そこから濃密化された状態
で放出されることが必要である。即ち、蛍光性物質含有
層内で光が全反射するには臨界角を生じなければならな
いが、臨界角（θc） は高い屈折率を持つ媒質から屈折
率の低い媒質へ光が進むときだけ生じるもので、次式で
表される。 θc＝ｓｉｎ-1（ｎ2／ｎ1） ｎ2＜ｎ1 ここで、ｎ1は蛍光性物質含有層の樹脂の屈折率、ｎ2は
透明樹脂層の樹脂の屈折率である。従って蛍光性物質含
有層の樹脂の屈折率を高くし、蛍光性物質含有層に隣接
する樹脂（媒質）の屈折率を低くすれば、蛍光性物質含
有層には臨界角が生じ、層内で光は全反射する。即ち、
透明樹脂層の樹脂の屈折率ｎ2を蛍光性物質含有層の樹
脂の屈折率ｎ1よりも低くしなければならない。また、
上記の式からもわかるように、効率良く、光を全反射さ
せるには臨界角が小さい方がよく、蛍光性物質含有層の
樹脂の屈折率と透明樹脂層の樹脂の屈折率の差が大きい
ほど、効率よく蛍光性物質含有層内で光の全反射が起こ
り、より切り口の光輝性が高くなるので鮮明になる。こ
のため両層の屈折率の差は、少なくとも０．００５以
上、好ましくは０．０１以上とする。本発明の遮光性マ
スキングフィルムを製造するには、プラスチックフィル
ム支持体上に直接或いは粘着剤層を介して常法により遮
光性剥離層を設け、その上に透明樹脂を含む塗布液を塗
布乾燥して透明樹脂層を形成する。更に透明樹脂層上に
蛍光性物質と高分子バインダーを含む塗布液を塗布乾燥
することによって容易に本発明の遮光性マスキングフィ
ルムを得ることができる。Means for Solving the Problems The inventors of the present invention have conducted extensive studies in order to achieve such an object, and as a result, a fluorescent substance-containing layer to be described later is formed on a transparent and colored light-shielding release layer. It was found that a fluorescent substance-containing layer provided through a transparent resin layer made of a resin having a refractive index lower than that of the resin produces sufficient fluorescence for visual identification without impairing the see-through property. The present invention has been completed.
That is, according to the present invention, in a light-shielding masking film in which a light-shielding release layer is provided on a plastic film support via an adhesive layer or directly, on the light-shielding release layer,
Provided is a light-shielding masking film which is obtained by sequentially laminating a transparent resin layer and a fluorescent substance-containing layer, and in which the refractive index of the resin of the fluorescent substance-containing layer is larger than the refractive index of the resin of the transparent resin layer. Hereinafter, the present invention will be specifically described. As the plastic film support, a transparent film of polyester, polycarbonate, triacetyl cellulose, polyvinyl chloride, acrylic, polystyrene, polyamide, polyimide or the like is used. In the present invention, the light-shielding release layer formed on the plastic film support is
It contains a light-shielding substance in order to efficiently shield light in the wavelength region exposed to light, such as a photosensitive film used together with a masking film. As the light-shielding substance, colorants such as dyes and pigments are usually used, but any substance can be used as long as it can block the transmission of actinic rays. Further, the light-shielding release layer contains a polymer substance such as synthetic rubber or synthetic resin as a binder component in addition to the light-shielding substance. It can be configured according to known techniques. The composition constituting this light-shielding release layer,
For example, nitrile rubber, vinyl chloride-vinylidene chloride copolymer, a light-shielding substance and optional additives, or nitrile rubber, vinyl chloride-vinyl acetate copolymer and a light-shielding substance, if necessary. There may be mentioned those comprising optional additives. The present invention can also be applied to a light-shielding masking film which is a so-called re-peeling type. This is one in which a light-shielding release layer is laminated on a plastic film support via an adhesive layer. In this case, for the pressure-sensitive adhesive layer provided on the plastic film support, synthetic resin-based and rubber-based pressure-sensitive adhesives can be used. Acrylic ester copolymers, saturated polyester copolymers, polyurethanes, etc. can be used as the synthetic resin system, and natural rubber, chloroprene rubber, neoprene rubber, nitrile rubber, styrene-isoprene rubber, etc. can be used as the rubber system. Removable type light-shielding release layer is also conventionally known, for example, ethylene-vinyl acetate copolymer, nitrocellulose, a light-shielding substance, a plasticizer, nitrile rubber, nitrocellulose,
Examples thereof include adhesive modifiers and light-shielding substances. The transparent resin layer and the fluorescent substance-containing layer are formed in the light-shielding masking film of the present invention so as to generate fluorescence with high contrast in the cut line and improve the peeling workability. As the resin used for the transparent resin layer, a resin having an optical property that does not inhibit the absorbed light and emitted light of the fluorescent substance, and has a refractive index lower than that of the resin used for the fluorescent substance-containing layer. Is used. For example, vinyl acetate resin, fluororesin, acrylic resin, polyethylene resin, polyester resin, polyvinyl alcohol, polyvinyl butyral, melamine resin, urethane resin, cellulose resin, polyamide resin, vinyl chloride resin, epoxy resin, ABS resin, polyacetal, and these Synthetic resins such as polymer resins and modified resins are used. The fluorescent substance-containing layer is composed of a polymer binder and a fluorescent substance.The polymer binder has optical properties that do not block the absorbed light and emitted light of the fluorescent substance, and is used for transparent resin layers. A resin having a refractive index larger than that of the resin is used. For example, polystyrene resin,
Synthetic resins such as vinyl chloride resin, vinylidene chloride resin, polycarbonate resin, melamine resin, acrylic resin, urea resin, polyamide resin, polyethylene resin, polypropylene resin, modified resins thereof, and copolymers can be used. As the fluorescent substance, usually, those that absorb visible light or ultraviolet light and generate fluorescence of visible light wavelength, preferably purple, blue, green light in visible light and the like having a longer wavelength than that. A fluorescent substance is used. Such fluorescent substances are well known in the art, and generally, a fluorescent dye, a light-collecting dye, a fluorescent pigment, a fluorescent brightening agent, a luminescent dye, etc. are used. For example, pyrene, anthracene, perinone, anthraquinone, fluorescein, uranine, eosin, rhodamine, stilbene, flavin, coumarin, auramine, acridine, naphthalic acid, naphthalene, phenanthate Resume type,
Organic type such as indole type, imidazole type, boron complex salt type and thioindico are used, but inorganic type can also be used depending on the case. Above all, it is preferable to use a light-collecting dye having good luminous efficiency. The light-collecting dye is a kind of fluorescent dye, but the degree of fluorescence is strong because the absorption wavelength region and the emission wavelength region do not overlap each other so that the dye hardly self-absorbs. In addition, it is positioned as a dye with very good weather resistance. This performance leaves the dye in a highly purified state. Examples of light-harvesting dyes include Lumogen F (BAS
F company), luminescent dyes EB-501, EG-302, E
R-107 (both manufactured by Mitsui Toatsu Dye Co., Ltd.) and the like can be mentioned.
By using such a light-collecting dye, the visibility of the cut line can be further enhanced. The thicker the film thickness, the better the visibility, but the cutting suitability,
From the viewpoints of film physical properties and color, it is preferable that the film is thin, and a compromise between the two will be found. 0.1 to 1 with transparent resin layer
The range of 0 μm, and the range of 2 to 15 μm for the fluorescent substance-containing layer is preferable. If the thickness of each layer is thinner than this, even if the content of the fluorescent substance is increased, the cut line hardly produces fluorescence,
It is difficult to see clearly. Further, if the thickness of each layer is thicker than this, the above-mentioned drawbacks occur. The concentration of the fluorescent substance is preferably 0.001 to 10% by weight with respect to the resin. With such a range, sufficient fluorescence is generated and a bright color can be obtained. Also,
When a light-collecting dye is used, its luminous efficiency is good, and therefore, there is an advantage that the added amount can be reduced. As a result, the film thickness of the transparent resin layer and the fluorescent substance-containing layer can be reduced, and the cutting suitability, film physical properties,
It becomes possible to maintain the visibility without deteriorating the performance such as the color. Furthermore, when using a light-collecting dye,
Due to its nature, it is better not to mix other additive substances in the fluorescent substance-containing layer as far as possible, so that the luminous efficiency is better. In the present invention, the refractive index n 1 of the resin of the fluorescent substance-containing layer is larger than the refractive index n 2 of the resin of the transparent resin layer. Usually, the fluorescent substance in the fluorescent substance-containing layer absorbs ambient light rays to generate fluorescence. When a cut line is applied to this fluorescent substance-containing layer, in order to provide sufficient visibility, the generated fluorescence is repeatedly reflected in the fluorescent substance-containing layer by total reflection and is guided to the cut portion, where it becomes dense. It needs to be released in a charged state. That is, the critical angle (θc) is generated only when the light travels from a medium having a high refractive index to a medium having a low refractive index in order to totally reflect the light in the fluorescent substance-containing layer. It is expressed by the following equation. θc = sin −1 (n 2 / n 1 ) n 2 <n 1 Here, n 1 is the refractive index of the resin of the fluorescent substance-containing layer, and n 2 is the refractive index of the resin of the transparent resin layer. Therefore, if the refractive index of the resin of the fluorescent substance-containing layer is increased and the refractive index of the resin (medium) adjacent to the fluorescent substance-containing layer is lowered, a critical angle is generated in the fluorescent substance-containing layer and The light is totally reflected. That is,
The refractive index n 2 of the resin of the transparent resin layer must be lower than the refractive index n 1 of the resin of the fluorescent substance-containing layer. Also,
As can be seen from the above formula, in order to efficiently and totally reflect light, the smaller the critical angle is, the better the difference between the refractive index of the fluorescent substance-containing layer resin and the transparent resin layer resin. The more efficiently, the total reflection of light occurs in the fluorescent substance-containing layer, and the brilliance of the cut edge becomes higher, so that it becomes clear. Therefore, the difference in refractive index between both layers is at least 0.005 or more, preferably 0.01 or more. To produce the light-shielding masking film of the present invention, a light-shielding release layer is provided on a plastic film support directly or via an adhesive layer by a conventional method, and a coating liquid containing a transparent resin is applied and dried on the release layer. To form a transparent resin layer. Further, the light-shielding masking film of the present invention can be easily obtained by applying a coating solution containing a fluorescent substance and a polymer binder on the transparent resin layer and drying it.
【作用】本発明によれば、遮光性剥離層と蛍光性物質含
有層との間に、透明性を備えた蛍光性物質含有層の樹脂
の屈折率より低い屈折率の層を設けることにより、蛍光
性物質含有層において蛍光性物質から発生する蛍光を効
率よく、カットライン部へ集めることができ、結果とし
て容易にカットラインを目視識別することができ、剥離
作業性が向上する。According to the present invention, by providing a layer having a refractive index lower than that of the resin of the fluorescent substance-containing layer having transparency between the light-shielding peeling layer and the fluorescent substance-containing layer, Fluorescence generated from the fluorescent substance in the fluorescent substance-containing layer can be efficiently collected in the cut line portion, and as a result, the cut line can be easily visually identified and the peeling workability is improved.
【実施例】以下に本発明の実施例を示す。 実施例１ 透明ポリエステルフィルム（図１、１）上に、下記処方
の遮光性剥離層用塗布液をバーコーティングにより塗布
し、乾燥膜厚２５μｍの遮光性剥離層（３）を形成し
た。 塩化ビニル−酢酸ビニル共重合体 １５重量部 （ヒ゛ニライト VYHH：ユニオンカーバイド社製） アクリロニトリルゴム ５重量部 （Ｎｉｐｏｌ１４３２Ｊ：日本ゼオン社製） 染料 ０．４重量部 （ネオザポンオレンジ２５１：ＢＡＳＦ社製） トルオール ６０重量部 メチルエチルケトン ６０重量部 この遮光性剥離層（３）上に、下記処方の透明樹脂層用
塗布液をバーコーティングにて塗布し、乾燥膜厚７．５
μｍの透明樹脂層（４）を形成した。 ポリビニルアルコール １０重量部 （ゴーセノールＫＨ１７：日本合成化学工業社製） 蒸留水 ９０重量部 更にその上に、下記処方の蛍光性物質含有層用塗布液を
バーコーティングにて塗布し、乾燥膜厚９μｍの蛍光性
物質含有層（５）を形成して、図１に示すような遮光性
マスキングフィルムを得た。 ポリスチレン ２０重量部 （スタイロン６６６：旭化成工業社製） 集光染料 ０．０６重量部 （Lumogen F Red 300：ＢＡＳＦ社製） トルオール ８０重量部 上記のようにして作製した試料にカッターナイフ刃によ
りカッティングし、その切り口を観察した。結果を表１
に示す。また透明樹脂層及び蛍光性物質含有層の各樹脂
の屈折率を併せて表１に示す。 実施例２ 実施例１と同様にして、透明ポリエステルフィルム上
に、乾燥膜厚２５μｍの遮光性剥離層を形成した後、 酢酸ビニル樹脂のエマルジョン水溶液 ５０重量部 （ポリゾールＰＳ：昭和高分子社製） 蒸留水 ５０重量部 からなる塗布液をバーコーティングにて塗布し、乾燥膜
厚２．０μｍの透明樹脂層を形成した。更にその上に、 ポリスチレン ２０重量部 （スタイロン６６６：旭化成工業社製） 集光染料 ０．１重量部 （Lumogen F Orange 240：ＢＡＳＦ社製） トルオール ８０重量部 からなる塗布液をバーコーティングにて塗布し、乾燥膜
厚４．５μｍの蛍光性物質含有層を形成して、図１に示
すような遮光性マスキングフィルムを得た。上記のよう
にして作製した試料にカッターナイフ刃によりカッティ
ングし、その切り口を観察した。結果を表１に示す。ま
た透明樹脂層及び蛍光性物質含有層の各樹脂の屈折率を
併せて表１に示す。 実施例３ 透明ポリエステルフィルム（図２、１）上に、下記処方
の再剥離性粘着剤層用塗布液をバーコーティングにより
塗布し、乾燥膜厚２μｍの再剥離性粘着剤層（２）を形
成した。 天然ゴム ４重量部 劣化防止剤 ０．１重量部 （ノンフレックスＷＳ：精工化学社製） トルオール ９５．９重量部 この再剥離性粘着剤層（２）上に、下記処方の遮光性剥
離層用塗布液をバーコーティングにて塗布し、乾燥膜厚
４０μｍの遮光性剥離層（３）を形成した。 ニトロセルロース １４．３重量部 （Ｈｉｇ１：旭化成工業社製） 可塑剤（ヒマシ油：伊藤製油社製） １０．０重量部 染料 １重量部 （ハ゛リファストレット゛3306：オリエント化学工業社製） シリカ ０．３重量部 （アエロジルＯＫ−４１２：日本アエロジル社製） 消泡剤 ２重量部 （ペインタッドＳ：ダウコーニング社製） トルオール ３２重量部 メチルエチルケトン ３２重量部 酢酸ブチル ８．４重量部 更にこの上に、実施例１と同じ透明樹脂層（４）を形成
した後、下記処方の蛍光性物質含有層用塗布液をバーコ
ーティングにて塗布し、乾燥膜厚９μｍの蛍光性物質含
有層（５）を形成して、図２に示すような遮光性マスキ
ングフィルムを得た。 ポリスチレン ２０重量部 （スタイロン６６６：旭化成工業社製） 蛍光染料 ０．１重量部 （ミツイＰＳオレンジＨＧ：三井東圧染料社製） トルオール ４０重量部 メチルエチルケトン ４０重量部 上記のようにして作製した試料にカッターナイフ刃によ
りカッティングし、その切り口を観察した。結果を表１
に示す。また透明樹脂層及び蛍光性物質含有層の各樹脂
の屈折率を併せて表１に示す。 比較例１ 実施例１と同様にして、透明ポリエステルフィルム上
に、乾燥膜厚２５μｍの遮光性剥離層を形成した後、透
明樹脂層を形成せずに、直接実施例１と同じ蛍光性物質
含有層を形成して、遮光性マスキングフィルムを得た。 比較例２ 実施例１と同様にして、透明ポリエステルフィルム上
に、乾燥膜厚２５μｍの遮光性剥離層を形成した後、下
記処方の透明樹脂層用塗布液をバーコーティングにて塗
布し、乾燥膜厚１５μｍの透明樹脂層を形成した。 ポリスチレン ２０重量部 （スタイロン６６６：旭化成工業社製） トルオール ８０重量部 更にその上に、下記処方の蛍光性物質含有層用塗布液を
バーコーティングにて塗布し、乾燥膜厚１２μｍの蛍光
性物質含有層を形成して、遮光性マスキングフィルムを
得た。 ポリビニルアルコール １０重量部 （ゴーセノールＫＨ１７：日本合成化学工業社製） 集光染料 ０．０３重量部 （Lumogen F Red 300：ＢＡＳＦ社製） 蒸留水 ３５重量部 メタ変性アルコール ８０重量部 比較例３ 実施例１と同様にして、透明ポリエステルフィルム上
に、乾燥膜厚２５μｍの遮光性剥離層を形成した後、実
施例１と同じ透明樹脂層を形成し、更にその上に、下記
処方の蛍光性物質含有層用塗布液をバーコーティングに
て塗布し、乾燥膜厚１１μｍの蛍光性物質含有層を形成
して、遮光性マスキングフィルムを得た。 酢酸ビニル樹脂 １５重量部 （ゴーセニールＰＶ５００：日本合成化学工業社製） 集光染料 ０．０５重量部 （Lumogen F Red 300：ＢＡＳＦ社製） トルオール ８５重量部 これら比較例の試料についてもカッターナイフ刃により
カッティングした際の切り口の観察結果及び透明樹脂層
及び蛍光性物質含有層の各樹脂の屈折率を表１に示し
た。尚、表１中において、切り口の状態がよく目視でき
る場合を「○」、目視が困難である場合を「×」とし
た。また、透明樹脂層及び蛍光性物質含有層の各樹脂の
屈折率の測定は、アッベ屈折計１Ｔ型（アタゴ社製）に
より、ナトリウム光源を用いて行った。EXAMPLES Examples of the present invention will be shown below. Example 1 A transparent polyester film (FIGS. 1 and 1) was coated with a coating solution for a light-shielding release layer having the following formulation by bar coating to form a light-shielding release layer (3) having a dry film thickness of 25 μm. Vinyl chloride-vinyl acetate copolymer 15 parts by weight (Vinylite VYHH: manufactured by Union Carbide) Acrylonitrile rubber 5 parts by weight (Nipol1432J: manufactured by Zeon Corporation) Dye 0.4 parts by weight (Neozapon Orange 251: manufactured by BASF) Toluol 60 parts by weight Methyl ethyl ketone 60 parts by weight Onto this light-shielding release layer (3), a transparent resin layer coating solution having the following formulation was applied by bar coating to give a dry film thickness of 7.5.
A μm transparent resin layer (4) was formed. Polyvinyl alcohol 10 parts by weight (Gohsenol KH17: manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) Distilled water 90 parts by weight Further, a fluorescent substance-containing layer coating solution having the following formulation was applied by bar coating to give a dry film thickness of 9 μm. A fluorescent substance-containing layer (5) was formed to obtain a light-shielding masking film as shown in FIG. Polystyrene 20 parts by weight (Stylon 666: Asahi Kasei Corp.) Light-collecting dye 0.06 parts by weight (Lumogen F Red 300: BASF Corp.) Toluol 80 parts by weight The sample prepared as described above is cut with a cutter knife blade. , Observed the cut. The results are shown in Table 1.
Shown in. Table 1 also shows the refractive indexes of the resins of the transparent resin layer and the fluorescent substance-containing layer. Example 2 After forming a light-shielding release layer having a dry film thickness of 25 μm on a transparent polyester film in the same manner as in Example 1, 50 parts by weight of an aqueous vinyl acetate resin emulsion solution (Polysol PS: manufactured by Showa Polymer Co., Ltd.) A coating solution consisting of 50 parts by weight of distilled water was applied by bar coating to form a transparent resin layer having a dry film thickness of 2.0 μm. Further, a coating solution comprising 20 parts by weight of polystyrene (Stylon 666: manufactured by Asahi Kasei Kogyo Co., Ltd.), 0.1 part by weight of light-collecting dye (Lumogen F Orange 240: manufactured by BASF) and 80 parts by weight of toluene was applied by bar coating. Then, a fluorescent substance-containing layer having a dry film thickness of 4.5 μm was formed to obtain a light-shielding masking film as shown in FIG. The sample produced as described above was cut with a cutter knife blade, and the cut end was observed. The results are shown in Table 1. Table 1 also shows the refractive indexes of the resins of the transparent resin layer and the fluorescent substance-containing layer. Example 3 A transparent polyester film (FIGS. 2 and 1) was coated with a coating liquid for a removable pressure-sensitive adhesive layer having the following formulation by bar coating to form a removable pressure-sensitive adhesive layer (2) having a dry film thickness of 2 μm. did. Natural rubber 4 parts by weight Deterioration preventive agent 0.1 parts by weight (Nonflex WS: manufactured by Seiko Chemical Co., Ltd.) Toluol 95.9 parts by weight For the light-shielding release layer having the following prescription on the removable pressure-sensitive adhesive layer (2). The coating solution was applied by bar coating to form a light-shielding release layer (3) having a dry film thickness of 40 μm. Nitrocellulose 14.3 parts by weight (Hig1: manufactured by Asahi Kasei Co., Ltd.) Plasticizer (castor oil: manufactured by Ito Oil Co., Ltd.) 10.0 parts by weight Dye 1 part by weight (Barifastlet 3306: manufactured by Orient Chemical Industry Co., Ltd.) Silica 0. 3 parts by weight (Aerosil OK-412: Nippon Aerosil Co., Ltd.) Antifoaming agent 2 parts by weight (Paintad S: Dow Corning Co., Ltd.) Toluol 32 parts by weight Methyl ethyl ketone 32 parts by weight Butyl acetate 8.4 parts by weight Further implementation After forming the same transparent resin layer (4) as in Example 1, a fluorescent substance-containing layer coating solution having the following formulation was applied by bar coating to form a fluorescent substance-containing layer (5) having a dry film thickness of 9 μm. Thus, a light-shielding masking film as shown in FIG. 2 was obtained. Polystyrene 20 parts by weight (Stylon 666: manufactured by Asahi Kasei Co., Ltd.) Fluorescent dye 0.1 parts by weight (Mitsui PS Orange HG: manufactured by Mitsui Toatsu Dyes Co., Ltd.) Toluol 40 parts by weight Methyl ethyl ketone 40 parts by weight For the sample prepared as above. It cut with the cutter knife blade and observed the cut end. The results are shown in Table 1.
Shown in. Table 1 also shows the refractive indexes of the resins of the transparent resin layer and the fluorescent substance-containing layer. Comparative Example 1 In the same manner as in Example 1, after forming a light-shielding release layer having a dry film thickness of 25 μm on a transparent polyester film, the same fluorescent substance-containing material as in Example 1 was directly contained without forming a transparent resin layer. The layers were formed to obtain a light-shielding masking film. Comparative Example 2 After forming a light-shielding release layer having a dry film thickness of 25 μm on a transparent polyester film in the same manner as in Example 1, a transparent resin layer coating solution having the following formulation was applied by bar coating to give a dry film. A transparent resin layer having a thickness of 15 μm was formed. Polystyrene 20 parts by weight (Styron 666: manufactured by Asahi Kasei Corporation) Toluol 80 parts by weight Further, a fluorescent substance-containing layer coating solution having the following formulation was applied by bar coating, and a dry film thickness of 12 μm was contained. The layers were formed to obtain a light-shielding masking film. Polyvinyl alcohol 10 parts by weight (Gohsenol KH17: manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) Light-harvesting dye 0.03 parts by weight (Lumogen F Red 300: manufactured by BASF) Distilled water 35 parts by weight Meta-modified alcohol 80 parts by weight Comparative Example 3 Example In the same manner as in 1, after forming a light-shielding release layer having a dry film thickness of 25 μm on a transparent polyester film, the same transparent resin layer as in Example 1 was formed, and a fluorescent substance containing the following formulation was further formed thereon. The layer coating liquid was applied by bar coating to form a fluorescent substance-containing layer having a dry film thickness of 11 μm to obtain a light-shielding masking film. Vinyl acetate resin 15 parts by weight (Gosenyl PV500: manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) Condensation dye 0.05 parts by weight (Lumogen F Red 300: manufactured by BASF) Toluol 85 parts by weight The samples of these comparative examples were also cut by a cutter knife blade. Table 1 shows the results of observation of the cut edges when cut and the refractive indexes of the respective resins of the transparent resin layer and the fluorescent substance-containing layer. In Table 1, "O" indicates that the state of the cut was clearly visible, and "X" indicates that the state of the cut was difficult. The refractive index of each resin of the transparent resin layer and the fluorescent substance-containing layer was measured by Abbe refractometer 1T type (manufactured by Atago Co., Ltd.) using a sodium light source.
【表１】 表の結果からも明らかなように、本発明の遮光性マスキ
ングフィルムはいずれもカットラインの視認性が極めて
良好で、またシースルー性も良好であった。[Table 1] As is clear from the results in the table, all of the light-shielding masking films of the present invention had very good cut line visibility and good see-through properties.
【発明の効果】本発明の遮光性マスキングフィルムによ
れば、透明性を有し蛍光性物質含有層との関係で特定の
屈折率を有する樹脂の層を設けることにより、蛍光性物
質から発生する蛍光を効率よく、カットライン部へ集め
ることができる。その結果、ライトテーブル上で原稿を
容易に視認できるシースルー性を持ち合わせると共に鮮
明にカットラインを目視識別することができ、剥離作業
性を飛躍的に向上させることができる。EFFECT OF THE INVENTION According to the light-shielding masking film of the present invention, it is generated from a fluorescent substance by providing a resin layer having transparency and a specific refractive index in relation to the fluorescent substance-containing layer. The fluorescence can be efficiently collected in the cut line portion. As a result, it is possible to easily see the document on the light table and to have a see-through property, and the cut line can be clearly discriminated visually, and the peeling workability can be dramatically improved.
【図１】本発明の一実施例を表す断面図。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】本発明の他の実施例を表す断面図。FIG. 2 is a sectional view showing another embodiment of the present invention.
１……プラスチックフィルム支持体 ２……粘着剤層 ３……遮光性剥離層 ４……透明樹脂層 ５……蛍光性物質含有層 1 ... Plastic film support 2 ... Adhesive layer 3 ... Light-shielding release layer 4 ... Transparent resin layer 5 ... Fluorescent substance-containing layer
Claims (3)
離層を設けた遮光性マスキングフィルムにおいて、前記
遮光性剥離層上に、透明樹脂層と蛍光性物質含有層を順
次積層してなり、且つ前記蛍光性物質含有層の樹脂の屈
折率が前記透明樹脂層の樹脂の屈折率より大きいことを
特徴とする遮光性マスキングフィルム。1. A light-shielding masking film having a light-shielding release layer provided on a plastic film support, wherein a transparent resin layer and a fluorescent substance-containing layer are sequentially laminated on the light-shielding release layer, and A light-shielding masking film, wherein the resin of the fluorescent substance-containing layer has a higher refractive index than the resin of the transparent resin layer.
と遮光性剥離層を順次設けた遮光性マスキングフィルム
において、前記遮光性剥離層上に、透明樹脂層と蛍光性
物質含有層を順次積層してなり、且つ前記蛍光性物質含
有層の樹脂の屈折率が前記透明樹脂層の樹脂の屈折率よ
り大きいことを特徴とする遮光性マスキングフィルム。2. A light-shielding masking film in which an adhesive layer and a light-shielding release layer are sequentially provided on a plastic film support, wherein a transparent resin layer and a fluorescent substance-containing layer are sequentially laminated on the light-shielding release layer. The light-shielding masking film is characterized in that the refractive index of the resin of the fluorescent substance-containing layer is higher than the refractive index of the resin of the transparent resin layer.
て集光染料を含有することを特徴とする請求項１又は２
記載の遮光性マスキングフィルム。3. The fluorescent substance-containing layer contains a light-collecting dye as a fluorescent substance.
The light-shielding masking film described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6004438A JPH07209848A (en) | 1994-01-20 | 1994-01-20 | Light-shielding masking film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6004438A JPH07209848A (en) | 1994-01-20 | 1994-01-20 | Light-shielding masking film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07209848A true JPH07209848A (en) | 1995-08-11 |
Family
ID=11584236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6004438A Withdrawn JPH07209848A (en) | 1994-01-20 | 1994-01-20 | Light-shielding masking film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07209848A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008015085A (en) * | 2006-07-04 | 2008-01-24 | Asahi Kasei Chemicals Corp | Cylindrical mask construction |
| JP2013546007A (en) * | 2010-09-29 | 2013-12-26 | ビーエーエスエフ ソシエタス・ヨーロピア | Security element |
| JP2015513684A (en) * | 2011-12-22 | 2015-05-14 | サン−ゴバン グラス フランス | Device for viewing images on laminated substrates |
-
1994
- 1994-01-20 JP JP6004438A patent/JPH07209848A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008015085A (en) * | 2006-07-04 | 2008-01-24 | Asahi Kasei Chemicals Corp | Cylindrical mask construction |
| JP2013546007A (en) * | 2010-09-29 | 2013-12-26 | ビーエーエスエフ ソシエタス・ヨーロピア | Security element |
| US9310766B2 (en) | 2010-09-29 | 2016-04-12 | Basf Se | Security element |
| JP2015513684A (en) * | 2011-12-22 | 2015-05-14 | サン−ゴバン グラス フランス | Device for viewing images on laminated substrates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20010403 |