JPS62227469A - Preparation of release sheet - Google Patents
Preparation of release sheetInfo
- Publication number
- JPS62227469A JPS62227469A JP7225086A JP7225086A JPS62227469A JP S62227469 A JPS62227469 A JP S62227469A JP 7225086 A JP7225086 A JP 7225086A JP 7225086 A JP7225086 A JP 7225086A JP S62227469 A JPS62227469 A JP S62227469A
- Authority
- JP
- Japan
- Prior art keywords
- primer layer
- release agent
- ionizing radiation
- mold release
- release sheet
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 239000006082 mold release agent Substances 0.000 claims description 38
- 230000005865 ionizing radiation Effects 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 abstract description 31
- 238000000576 coating method Methods 0.000 abstract description 31
- 239000000178 monomer Substances 0.000 abstract description 24
- 229920001296 polysiloxane Polymers 0.000 abstract description 16
- 229920002050 silicone resin Polymers 0.000 abstract description 8
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000004094 surface-active agent Substances 0.000 abstract description 4
- 239000002216 antistatic agent Substances 0.000 abstract description 3
- 239000002649 leather substitute Substances 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract 3
- 230000002285 radioactive effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 32
- 239000002585 base Substances 0.000 description 25
- 239000007788 liquid Substances 0.000 description 17
- -1 polyethylene Polymers 0.000 description 16
- 239000000123 paper Substances 0.000 description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 238000010894 electron beam technology Methods 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 239000002985 plastic film Substances 0.000 description 8
- 229920006255 plastic film Polymers 0.000 description 8
- 239000011888 foil Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229920000193 polymethacrylate Polymers 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000839 emulsion Substances 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229920003169 water-soluble polymer Polymers 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 238000003847 radiation curing Methods 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 150000005690 diesters Chemical class 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- WVAFEFUPWRPQSY-UHFFFAOYSA-N 1,2,3-tris(ethenyl)benzene Chemical compound C=CC1=CC=CC(C=C)=C1C=C WVAFEFUPWRPQSY-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- IYMZEPRSPLASMS-UHFFFAOYSA-N 3-phenylpyrrole-2,5-dione Chemical group O=C1NC(=O)C(C=2C=CC=CC=2)=C1 IYMZEPRSPLASMS-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical group OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- IVRMZWNICZWHMI-UHFFFAOYSA-N azide group Chemical group [N-]=[N+]=[N-] IVRMZWNICZWHMI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- APEJMQOBVMLION-UHFFFAOYSA-N cinnamamide Chemical group NC(=O)C=CC1=CC=CC=C1 APEJMQOBVMLION-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 229940052303 ethers for general anesthesia Drugs 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- KUQWZSZYIQGTHT-UHFFFAOYSA-N hexa-1,5-diene-3,4-diol Chemical compound C=CC(O)C(O)C=C KUQWZSZYIQGTHT-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical group CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 229920002601 oligoester Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- HVAMZGADVCBITI-UHFFFAOYSA-M pent-4-enoate Chemical compound [O-]C(=O)CCC=C HVAMZGADVCBITI-UHFFFAOYSA-M 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical compound C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000007342 radical addition reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229960000834 vinyl ether Drugs 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、離型シートの製造方法に関し、特に剥離性が
改善された離型シートの製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for manufacturing a release sheet, and particularly to a method for manufacturing a release sheet with improved releasability.
「従来の技術」
離型シートは、一般に紙、プラスチックフィルム、金属
箔、不織布などの基材上に離型剤を塗布・乾燥して製造
され、粘着テープ及びラベル等の粘着加工製品用の剥離
シート、合成皮革や成型品等の製造工程における離型シ
ート等として幅広い分野で使用されている。これらの離
型シートには、剥離性能が良好であることが要求される
のみならず、その用途に応じて耐水性、耐熱性、耐熱収
縮性などに優れていることも要求される。``Prior art'' Release sheets are generally manufactured by coating and drying a release agent on a base material such as paper, plastic film, metal foil, or nonwoven fabric, and are used as release sheets for adhesive processed products such as adhesive tapes and labels. It is used in a wide range of fields as a release sheet in the manufacturing process of sheets, synthetic leather, molded products, etc. These release sheets are required not only to have good release performance, but also to have excellent water resistance, heat resistance, heat shrinkage resistance, etc., depending on the application.
一方、かかる離型シートの製造において、例えば紙を基
材として用いる場合には、基材にバリヤー性を付与する
、剥離性能を改善するなどの目的で、ポリビニルアルコ
ール等の水溶性高分子や顔料塗液の塗布またはポリエチ
レンの押出し塗工によるプライマー層を基材と離型剤と
の間に設ける方法などが提案されている。しかしながら
、従来のプライマー層を設ける方法にあっては、バリヤ
ー性の付与は達成されるものの、剥離性能の改善、とり
わけ軽剥離力比の要望に対しては不十分であり、また、
離型剤の種類によってはプライマー層と離型剤層の密着
性が必ずしも充分ではなく、さらに耐熱性等を改善する
こともできない。On the other hand, in the production of such release sheets, when paper is used as a base material, for example, water-soluble polymers such as polyvinyl alcohol or pigments are added for the purpose of imparting barrier properties to the base material or improving release performance. A method of providing a primer layer between a base material and a mold release agent by applying a coating liquid or extrusion coating of polyethylene has been proposed. However, although the conventional method of providing a primer layer achieves the provision of barrier properties, it is insufficient to improve the peeling performance, especially to meet the demand for a light peeling force ratio.
Depending on the type of mold release agent, the adhesion between the primer layer and the mold release agent layer is not necessarily sufficient, and furthermore, heat resistance and the like cannot be improved.
また、プラスチックフィルムや金属箔を基材として使用
する場合には、基材と離型剤との密着性を高める目的で
、基材にコロナ放電処理を施す方法が提案されているが
、必ずしも充分な効果が得られず、粘着テープの剥離シ
ートとして使用すると剥離剤の一部が粘着剤層に転移し
、粘着テープの接着力を低下させてしまう。さらに、こ
熟らの基材上に従来のプライマー層を設けても、基材と
プライマー層との密着性が不十分なため、粘着テープに
使用した場合には、やはり接着力の低下を招いてしまう
。そのうえ、これらの方法によっては軽剥離力の離型シ
ートは得られない。Furthermore, when using plastic film or metal foil as a base material, a method has been proposed in which the base material is subjected to corona discharge treatment in order to improve the adhesion between the base material and the mold release agent, but this method is not always sufficient. When used as a release sheet for an adhesive tape, part of the release agent is transferred to the adhesive layer, reducing the adhesive strength of the adhesive tape. Furthermore, even if a conventional primer layer is provided on a base material, the adhesion between the base material and the primer layer is insufficient, resulting in a decrease in adhesive strength when used in an adhesive tape. I'll be there. Moreover, these methods do not provide release sheets with low peel strength.
「発明が解決しようとする問題点」
本発明の目的は、軽剥離力比の要請に対応でき、しかも
離型剤の密着性、さらには耐熱性、耐熱収縮性、耐水性
などに優れた離型シートの製造方法を提供することにあ
る。"Problems to be Solved by the Invention" The purpose of the present invention is to provide a release agent that can meet the requirements for a light release force ratio, and that also has excellent adhesion of the mold release agent, as well as heat resistance, heat shrinkage resistance, and water resistance. An object of the present invention is to provide a method for manufacturing a molded sheet.
「問題点を解決するための手段」
本発明は、基材上の少なくとも片面にプライマー層と離
型剤層を有する離型シートの製造方法において、該プラ
イマー層に電離性放射線硬化型樹脂を含有せしめ、電離
性放射線を照射することを特徴とする離型シートの製造
方法である。"Means for Solving the Problems" The present invention provides a method for producing a release sheet having a primer layer and a release agent layer on at least one side of a base material, wherein the primer layer contains an ionizing radiation-curable resin. This is a method for producing a release sheet, characterized by irradiating it with ionizing radiation.
「作用」
本発明のプライマー層中に含有せしめられる電離性放射
線硬化型樹脂としては、エチレン性不飽和二重結合を有
するプレポリマーおよびモノマーが挙げられる。かかる
プレポリマーとしては、（ａ） 脂肪族、脂環族、芳
香脂肪族２〜６価の多価アルコール及びポリアルキレン
グリコールのポリ （メタ）アクリレート；
山） 脂肪族、脂環族、芳香脂肪族、芳香族２〜６価の
多価アルコールにアルキレンオキサイドを付加させた形
の多価アルコールのポリ （メタ）アクリレート；
（Ｃ） ポリ （メタ）アクリロイルオキシアルキル
リン酸エステル；
（ｄ） ポリエステルポリ （メタ）アクリレート；
（ｅ） エポキシポリ （メタ）アクリレート；（ｒ
） ポリウレタンポリ （メタ）アクリレート；（ｇ
） ポリアミドポリ （メタ）アクリレート；（ｈ）
ポリシロキサンポリ （メタ）アクリレート；（ｉ
） 側鎖及び／又は末端に（メタ）アクリロイルオキ
シ基を有するビニル系又はジエン系低重量体；
Ｕ） 前記（ａ）〜（１）記載のオリゴエステル（メ
タ）アクリレート変性物；
等が例示され、モノマーとしては、
■ 単官能不飽和単量体
１、 エチレン性不飽和モノまたはポリカルボン酸など
で代表されるカルボキシル基含有単量体およびそれらの
アルカリ金属塩、アンモニウム塩、アミン塩などのカル
ボン酸塩基含有単量体。"Function" Examples of the ionizing radiation-curable resin contained in the primer layer of the present invention include prepolymers and monomers having ethylenically unsaturated double bonds. Such prepolymers include (a) poly(meth)acrylates of aliphatic, alicyclic, and araliphatic di- to hexavalent polyhydric alcohols and polyalkylene glycols; , poly(meth)acrylate of polyhydric alcohol with alkylene oxide added to aromatic di- to hexavalent polyhydric alcohol; (C) poly(meth)acryloyloxyalkyl phosphate; (d) polyester poly( meth)acrylate;
(e) Epoxy poly (meth)acrylate; (r
) Polyurethane poly(meth)acrylate; (g
) Polyamide poly (meth)acrylate; (h)
Polysiloxane poly(meth)acrylate; (i
) A vinyl or diene-based low weight substance having a (meth)acryloyloxy group in the side chain and/or the terminal; U) Oligoester (meth)acrylate modified products described in (a) to (1) above; etc. are exemplified. , Monomers include: ■ Monofunctional unsaturated monomer 1, carboxyl group-containing monomers represented by ethylenically unsaturated mono- or polycarboxylic acids, and carboxyl group-containing monomers such as their alkali metal salts, ammonium salts, and amine salts. Acid-base containing monomer.
２、エチレン性不飽和（メタ）アクリルアミドまたはア
ルキル置換（メタ）アクリルアミド。2. Ethylenically unsaturated (meth)acrylamide or alkyl-substituted (meth)acrylamide.
Ｎ−ビニルピロリドンのようなビニルラクタム類で代表
されるアミド基含有単量体。An amide group-containing monomer represented by vinyl lactams such as N-vinylpyrrolidone.
３、脂肪族または芳香族ビニルスルホン酸類で代表され
るスルホン酸基含有単量体、およびそれらのアルカリ金
属塩、アンモニウム塩。3. Sulfonic acid group-containing monomers represented by aliphatic or aromatic vinyl sulfonic acids, and their alkali metal salts and ammonium salts.
アミン塩などのスルホン酸塩基含有単量体。Sulfonic acid group-containing monomers such as amine salts.
４、 エチレン性不飽和エーテルなどで代表される水酸
基含有単量体。4. Hydroxyl group-containing monomers such as ethylenically unsaturated ethers.
５、 ジメチルアミノエチル（メタ）アクリレート２−
ビニルピリジンなどのアミノ基含有単量体、 。5. Dimethylaminoethyl (meth)acrylate 2-
Amino group-containing monomers such as vinylpyridine.
６．４級アンモニウム塩基含有単量体。6. Quaternary ammonium base-containing monomer.
７、 エチレン性不飽和カルボン酸のアルキルエステル
。7. Alkyl ester of ethylenically unsaturated carboxylic acid.
８、（メタ）アクリロニトリルのようなニトリル基含有
単量体。8. Nitrile group-containing monomers such as (meth)acrylonitrile.
９、スチレン。9. Styrene.
ｌＯ０酢酸ビニル、酢酸（メタ）アリルなどのエチレン
性不飽和アルコールのエステル。lO0Esters of ethylenically unsaturated alcohols such as vinyl acetate and (meth)allyl acetate.
１）、 活性水素を含有する化合物のアルキレンオキ
シド付加重合体のモノ （メタ）アクリレート類。1) Mono(meth)acrylates of alkylene oxide addition polymers of compounds containing active hydrogen.
■ ２官能不飽和単量体
１、多塩基酸と不飽和アルコールとのジエステルで代表
されるエステル基含有２官能単量体。■ Difunctional unsaturated monomer 1, a difunctional monomer containing an ester group, represented by a diester of a polybasic acid and an unsaturated alcohol.
２、活性水素を有する化合物のアルキレンオキシド付加
重量体と（メタ）アクリル酸とのジエステルよりなる２
官能単量体。2. Consisting of a diester of an alkylene oxide adduct of a compound having active hydrogen and (meth)acrylic acid.
Functional monomer.
３、Ｎ、Ｎ−メチレンビスアクリルアミドのようなビス
アクリルアミ、ド。3. Bisacrylamides, such as N,N-methylenebisacrylamide.
４、 ジビニルベンゼン、ジビニルエチレングリコール
、ジビニルスルホン、ジビニルエーテル、ジビニルケト
ンなどの２官能化合物。4. Difunctional compounds such as divinylbenzene, divinylethylene glycol, divinyl sulfone, divinyl ether, and divinyl ketone.
■ 多官能不飽和単量体
１、ポリカルボン酸と不飽和アルコールとのポリエステ
ルで代表されるエステル基含有多官能単量体。■ Polyfunctional unsaturated monomer 1, an ester group-containing polyfunctional monomer typified by polyester of polycarboxylic acid and unsaturated alcohol.
２、活性水素を有する化合物のアルキレンオキシド付加
重量体と（メタ）アクリル酸とのポリエステルよりなる
多官能単量体。2. A polyfunctional monomer consisting of a polyester of an alkylene oxide adduct of a compound having active hydrogen and (meth)acrylic acid.
３、トリビニルベンゼンのような多官能不飽和単量体。3. Polyfunctional unsaturated monomers such as trivinylbenzene.
等が挙げられる。etc.
本発明で使用される電離性放射線硬化型樹脂としては、
上記の如きエチレン性不飽和二重結合を有するプレポリ
マーおよびモノマーの他に、かかるプレポリマーまたは
モノマーに界面活性剤の存在下で攪拌しながら水を加え
ることによって調製される水中油滴型エマルジョン、さ
らには側鎖に少なくとも
ＯＨＯＨ
（式中Ｒは水素原子またはアルキル基を示す。）を有す
る水溶性高分子、アセトアセチル基、カルボキシル基、
（メタ）アクリロイル基、ハロアルキル（メタ）アクリ
ロイル基、Ｎ−メチロールアクリルアミド基から選ばれ
る少なくとも１種の官能基を有するポリビニルアルコー
ル等の水溶性高分子を使用することもできる。なお、上
記エチレン性不飽和二重結合を有するプレポリマーおよ
びモノマーのうち水溶性の化合物は、水溶液として用い
ることもできる。The ionizing radiation-curable resin used in the present invention includes:
In addition to prepolymers and monomers having ethylenically unsaturated double bonds as described above, oil-in-water emulsions prepared by adding water to such prepolymers or monomers with stirring in the presence of a surfactant; Furthermore, water-soluble polymers having at least OHOH (in the formula, R represents a hydrogen atom or an alkyl group) in the side chain, an acetoacetyl group, a carboxyl group,
A water-soluble polymer such as polyvinyl alcohol having at least one functional group selected from a (meth)acryloyl group, a haloalkyl (meth)acryloyl group, and an N-methylolacrylamide group can also be used. Note that water-soluble compounds among the prepolymers and monomers having ethylenically unsaturated double bonds can also be used as an aqueous solution.
これらの電離性放射線硬化型樹脂には、必要に応じて帯
電防止剤、消泡剤、滑剤、界面活性剤、染料、填料、可
塑剤等が本発明の効果を阻害しない範囲で添加され、ブ
ライマー履用の塗液として調製される。Antistatic agents, antifoaming agents, lubricants, surfactants, dyes, fillers, plasticizers, etc. are added to these ionizing radiation-curable resins as necessary to the extent that they do not impede the effects of the present invention. It is prepared as a lubricant for wearing.
かくして調製されたプライマー層用塗液は、グラビアコ
ーター、バーコーター、ロールコータ−、エアーナイフ
コーター等の公知の塗布装置によって基材上に塗布され
るが、かかる塗液の塗布量は電離性放射線硬化型樹脂が
固形分としてｏ、ｏｉ〜２０ ｇ／ｃｄ、好ましくは０
．１〜１０ｇ／ｆｆｒの範囲となるように調節するのが
望ましい。因に、電離性放射線硬化型樹脂成分の塗布量
が０．０１ｇ／ｒｒｒ未満では、本発明の所望する効果
が殆ど得られず、また２ ０ ｇ／ｒｄを越えると効果
は飽和状態となり、経済的な面からもメリットが乏しい
ものである。The primer layer coating liquid thus prepared is applied onto the substrate using a known coating device such as a gravure coater, bar coater, roll coater, or air knife coater, but the coating amount of the coating liquid is limited to ionizing radiation. The curable resin has a solid content of o, oi to 20 g/cd, preferably 0
．． It is desirable to adjust it so that it is in the range of 1 to 10 g/ffr. Incidentally, if the coating amount of the ionizing radiation curable resin component is less than 0.01 g/rrr, the desired effect of the present invention will hardly be obtained, and if it exceeds 20 g/rd, the effect will reach a saturated state, resulting in economical problems. It also has little merit from a physical standpoint.
本発明において、プライマー層が形成される基材として
は、ポリエチレン、ポリプロピレンのようなポリオレフ
ィンフィルム、ポリカーボネートフィルム、ポリエチレ
ンテレフタレートフィルム、ポリ塩化ビニルフィルム、
ポリ塩化ビニリデンフィルム、弗ＳＷ脂フィルム、ナイ
ロンフィルム、ポリスチレンフィルム、ポリビニルアル
コールフィルム等のプラスチックフィルム、セロファン
、グラシン紙、上質紙、印刷用塗被祇原祇、特殊紙用原
紙、包装用クラフト紙等の紙、また上記プラスチックフ
ィルムをこれらの紙とラミネートしたプラスチックフィ
ルムラミネート紙、銅箔、アルミニウム箔、錫箔等の金
属箔、不織布等が用いられる。なお、プライマー層の形
成は、これらの基材に予めコロナ放電処理、電子線照射
処理等を施した後に行うこともできる。In the present invention, the base material on which the primer layer is formed includes polyolefin films such as polyethylene and polypropylene, polycarbonate films, polyethylene terephthalate films, polyvinyl chloride films,
Plastic films such as polyvinylidene chloride film, fluorocarbon film, nylon film, polystyrene film, polyvinyl alcohol film, cellophane, glassine paper, high-quality paper, coated paper for printing, base paper for special paper, kraft paper for packaging, etc. Paper, plastic film laminated paper obtained by laminating the above-mentioned plastic films with these papers, metal foils such as copper foil, aluminum foil, and tin foil, nonwoven fabrics, etc. are used. Note that the formation of the primer layer can also be performed after previously subjecting these base materials to corona discharge treatment, electron beam irradiation treatment, or the like.
本発明は、上述の如きプライマー層用塗液を基材上に塗
布した後、電離性放射線を照射してプライマー層を硬化
せしめるものであるが、用いる電離性放射線硬化型樹脂
が水溶液または水中油滴型エマルジョンとして使用され
る場合、あるいは水溶性高分子である場合には、電離性
放射線の照射は該塗液の乾燥前又は乾燥後のいずれの段
階であってもよいが、効果の点からすれば塗液の乾燥前
に照射を行い、次いで加熱乾燥するのが望ましい。In the present invention, after coating a primer layer coating liquid as described above on a base material, ionizing radiation is irradiated to cure the primer layer. When used as a drop-type emulsion or when a water-soluble polymer is used, ionizing radiation may be irradiated at any stage before or after drying the coating liquid, but from the viewpoint of effectiveness. If so, it is desirable to perform irradiation before drying the coating liquid, and then heat and dry it.
本発明でいう電離性放射線というのは、α線、β線、Ｔ
線、Ｘ線、電子線等を意味するものである。これらは効
果の面からは特に差異はないが、工業的な利用が普及し
ている電子線の利用が好ましい。また、電離性放射線の
照射方式としては、スキャンニング方式、カーテンビー
ム方式、ブロードビーム方式等のいずれでもよく、また
電離性放射線を照射する際の加速電圧は１００〜３００
ＫＶ程度が適当である。In the present invention, ionizing radiation refers to α rays, β rays, T
It means rays, X-rays, electron beams, etc. Although there is no particular difference between these methods in terms of effectiveness, it is preferable to use electron beams, which are widely used industrially. The ionizing radiation irradiation method may be a scanning method, curtain beam method, broad beam method, etc., and the acceleration voltage when irradiating the ionizing radiation is 100 to 300.
Approximately KV is appropriate.
照射する電離性放射線の量は、０． Ｉ Ｍｒａｄ未満
では電離性放射線の照射効果が乏しく、また１５Ｍｒａ
ｄを越えると紙、プラスチックフィルム等の劣化を生じ
るため、０．１〜１５Ｍｒａｄの範囲となるように調節
するのが望ましい。The amount of ionizing radiation to be irradiated is 0. Below I Mrad, the irradiation effect of ionizing radiation is poor;
If it exceeds d, paper, plastic films, etc. will deteriorate, so it is desirable to adjust it to a range of 0.1 to 15 Mrad.
本発明の離型シートは、かくして形成されたブライマ一
層の上に離型剤層が形成されるものであるが、かかる離
型剤としては、シリコーン系樹脂、長鎖アルキルアクリ
レート重合体樹脂のような非シリコーン系樹脂、さらに
は電離性放射線硬化型離型剤等を例示することができる
。そして、電離性放射線硬化型離型剤としては、電離性
放射線照射によって開始されるラジカル付加重合反応ま
たは二世化反応を利用した
１）メルカプト基含有オルガノポリシロキサンとビニル
基含有オルガノポリシロキサンとの混合組成物。In the mold release sheet of the present invention, a mold release agent layer is formed on the single layer of brimer thus formed, and the mold release agent may include a silicone resin, a long chain alkyl acrylate polymer resin, etc. Examples include non-silicone resins, ionizing radiation-curable mold release agents, and the like. As an ionizing radiation curing mold release agent, 1) a combination of a mercapto group-containing organopolysiloxane and a vinyl group-containing organopolysiloxane using a radical addition polymerization reaction or a secondary reaction initiated by ionizing radiation irradiation is used. Mixed composition.
２）アクリル基、メタクリル基、もしくはシンナモイル
基含有オルガノポリシロキサン組成物。2) Organopolysiloxane composition containing an acrylic group, a methacrylic group, or a cinnamoyl group.
３）マレイミド基もしくはフェニルマレイミド基含有オ
ルガノポリシロキサン組成物。3) Organopolysiloxane composition containing maleimide group or phenylmaleimide group.
４）アジド基含有オルガノポリシロキサンとビニル基含
有オルガノポリシロキサンとの混合組成物。4) A mixed composition of an azide group-containing organopolysiloxane and a vinyl group-containing organopolysiloxane.
５）チオアクリル基、チオメタクリル基もしくはチオシ
ンナモイル基含有オルガノポリシロキサン組成物。5) Organopolysiloxane composition containing a thioacrylic group, a thiomethacrylic group, or a thiocinnamoyl group.
６）アクリルアミド基、メタクリルアミド基、もしくは
シンナモイルアミド基含有オルガノポリシロキサン組成
物。6) Organopolysiloxane composition containing an acrylamide group, a methacrylamide group, or a cinnamoylamide group.
等が挙げられる。etc.
上記の如き離型剤のうち、シリコーン系樹脂および非シ
リコーン系樹脂は、一般に、トルエン、酢酸エチル、ヘ
キサンなどの有機溶剤に溶解した溶液あるいはエマルジ
ョンとして離型剤塗液が調製される。また電離性放射線
硬化型離型剤は、原則として樹脂成分のみで離型剤塗液
が調製されてブライマ一層上に塗布されるが、トルエン
、酢酸エチル、ヘキサンなどの溶剤を用いた溶液、又は
エマルジョンとして使用することもできる。なお、これ
らの離型剤塗液中には、必要に応じて帯電防止剤、消泡
剤、滑剤、界面活性剤、染料、填料、可塑剤、さらには
前述の如き電離性放射線硬化型樹脂を添加することもで
きる。Among the above mold release agents, silicone resins and non-silicone resins are generally dissolved in an organic solvent such as toluene, ethyl acetate, hexane, etc. to prepare a mold release agent coating solution as a solution or emulsion. In addition, for ionizing radiation-curable mold release agents, in principle, a mold release agent coating solution is prepared with only resin components and applied on a layer of brimer, but solutions using solvents such as toluene, ethyl acetate, hexane, etc. It can also be used as an emulsion. In addition, in these mold release agent coating liquids, antistatic agents, antifoaming agents, lubricants, surfactants, dyes, fillers, plasticizers, and even the above-mentioned ionizing radiation-curable resins may be added. It can also be added.
かかる離型剤塗液の塗布量は、離型剤樹脂の固形分が０
．１〜１０ｇ／ｆｆｆ、好ましくは０．２〜５ ｇ／ｄ
の範囲となるように調節するのが望ましい。The coating amount of the mold release agent coating liquid is such that the solid content of the mold release agent resin is 0.
．． 1-10 g/fff, preferably 0.2-5 g/d
It is desirable to adjust it so that it falls within the range of .
なお、塗布量が０．１ｇ／ｎｆ未満では良好な離型性が
得られず、また１０ｇ／ｒｒｆを越えると経済的な面か
らメリットが乏しいものである。It should be noted that if the coating amount is less than 0.1 g/nf, good mold releasability cannot be obtained, and if it exceeds 10 g/rrf, there is little merit from an economical point of view.
また、離型剤塗液の塗布方法としては、グラビアコータ
ー、バーコーター、ロールコータ−、エアーナイフコー
ター等の各種公知の塗布手段が採用される。Further, as a method for applying the release agent coating liquid, various known coating means such as a gravure coater, a bar coater, a roll coater, an air knife coater, etc. are employed.
かくしてブライマ一層上に塗布された離型剤塗液は、離
型剤塗液がシリコーン系樹脂および非シリコーン系樹脂
の場合は、通常の乾燥方法によって、また離型剤塗液が
電離性放射線硬化型離型剤である場合には、電離性放射
線が照射されてそれぞれ離型剤層が硬化せしめられる。In this way, the release agent coating liquid applied on one layer of brimmer is cured by a normal drying method or by ionizing radiation when the release agent coating liquid is a silicone resin or a non-silicone resin. In the case of a mold release agent, each mold release agent layer is cured by irradiation with ionizing radiation.
なお、電離性放射線硬化型離型剤が溶液またはエマルジ
ョンとして使用される場合には、電離性放射線の照射は
、塗液の乾燥前又は乾燥後のいずれの段階であってもよ
いが、効果の点から塗液の乾燥前に照射を行い、次いで
加熱乾燥するのが望ましい。In addition, when the ionizing radiation-curable mold release agent is used in the form of a solution or emulsion, ionizing radiation may be irradiated at any stage before or after drying the coating liquid, but this may reduce the effectiveness. It is desirable to perform irradiation from a point before drying the coating liquid and then heat dry it.
また、前述のブライマ一層を形成する電離性放射線硬化
型樹脂が水などの媒体を含まないバルクの状態で使用さ
れる場合には、電離性放射線硬化型樹脂および電離性放
射線硬化型離型剤を積層として塗布した後に、電離性放
射線照射を行い両者を同時に硬化させてもよい。In addition, when the ionizing radiation-curable resin that forms the single layer of the brimer is used in a bulk state that does not contain a medium such as water, the ionizing radiation-curable resin and the ionizing radiation-curable mold release agent are used. After coating as a laminate, ionizing radiation may be applied to cure both at the same time.
なお、電離性放射線硬化型離型剤の硬化に使用する電離
性放射線の種類、照射方式および照射線量などについて
は、電離性放射線硬化型樹脂の硬化の場合と同様に行う
ことができる。Note that the type of ionizing radiation, irradiation method, irradiation dose, etc. used for curing the ionizing radiation-curable mold release agent can be carried out in the same manner as in the case of curing the ionizing radiation-curable resin.
本発明の方法で得られる離型シートは、電離性放射線硬
化型樹脂を主体とするプライマー層を有するところに重
大な特徴があり、かかるプライマー層を設けることによ
って、橿めて軽剥離力の離型シートが得られるばかりで
なく、従来技術では必ずしも満足し得る品質が得られな
かった電離性放射線硬化型離型剤を用いた剥離シートを
も製造し得るものである。即ち、電離性放射線硬化型離
型剤の使用は、従来の溶剤型離型剤やエマルジョン型離
型剤を使用する場合に比べ、生産性、経済性の利点とと
もに熱負荷がないという大きな利点を持っている。しか
し、電離性放射線硬化型離型剤は、一般にプラスチック
フィルム、紙、金属箔、不織布等の基材や、従来のプラ
イマー層との密着性が劣るため、従来技術では必ずしも
満足しうる品質が得られなかった。本発明は、かかる電
離性放射線硬化型離型剤の存する難点を解消し、耐熱性
に劣るプラスチックフィルムを基材とする離型シートの
製造をも容易にするものである。The release sheet obtained by the method of the present invention has an important feature in that it has a primer layer mainly composed of an ionizing radiation-curable resin. Not only can a molded sheet be obtained, but also a release sheet using an ionizing radiation-curable mold release agent, which has not always been of satisfactory quality using conventional techniques, can also be produced. In other words, the use of ionizing radiation-curable mold release agents has the great advantage of not only productivity and economy, but also no heat load, compared to the use of conventional solvent-type mold release agents or emulsion-type mold release agents. have. However, ionizing radiation-curable mold release agents generally have poor adhesion to base materials such as plastic films, paper, metal foils, and nonwoven fabrics, as well as to conventional primer layers, so conventional techniques do not necessarily provide satisfactory quality. I couldn't. The present invention eliminates the drawbacks of such ionizing radiation-curable mold release agents and facilitates the production of mold release sheets based on plastic films having poor heat resistance.
なお、本発明においては、必要に応じて基材の両面にプ
ライマー層と剥離剤層をそれぞれ設けたり、基材の片面
にはプライマー層と剥離剤層を設け、裏面にはプライマ
ー層のみを設けることも可能である。In addition, in the present invention, if necessary, a primer layer and a release agent layer may be provided on both sides of the base material, or a primer layer and a release agent layer may be provided on one side of the base material, and only a primer layer may be provided on the back side. It is also possible.
「実施例」
以下に実施例を示し、本発明をより具体的に説明するが
、勿論これらに限定されるものではない。"Example" The present invention will be described in more detail with reference to Examples below, but the present invention is of course not limited to these.
また特に断らない限り例中の部および％はそれぞれ重量
部および重量％を示す。Further, unless otherwise specified, parts and percentages in the examples indicate parts by weight and percentages by weight, respectively.
実施例１〜３
基材として上質紙（坪ｆｆ１７０ｇ／耐、厚さ９０μ）
を使用し、その片面に下記のブライマー開用塗液を、固
形分が４ ｇｌｒｄとなるように塗布し、次いで電子線
照射試験機（エレクトロカーテンＣＢ−１５０ＳＥＳＩ
社製）を用いて３ Ｍｒａｄの電子線を照射し、３種類
のプライマー層を有するシートを得た。なお、実施例２
および３においては、電子線照射処理後、直ちに乾燥処
理を施した。Examples 1 to 3 High-quality paper as a base material (Tsubo ff170g/resistant, thickness 90μ)
Using an electron beam irradiation tester (ElectroCurtain CB-150SESI), apply the following Braimer opening coating liquid to one side so that the solid content is 4 glrd.
The sheet was irradiated with an electron beam of 3 Mrad using a 3 Mrad electron beam (manufactured by Co., Ltd.) to obtain a sheet having three types of primer layers. In addition, Example 2
In cases 3 and 3, a drying process was performed immediately after the electron beam irradiation process.
・実施例１：ポリエステルアクリレート（アロエックス
Ｍ−８０６０、東亜合成社製）７０部と特殊アクリレー
ト（アロエックスＭ−１）７、東亜合成社製）３０部の
混合物。- Example 1: A mixture of 70 parts of polyester acrylate (Aloex M-8060, manufactured by Toagosei Co., Ltd.) and 30 parts of special acrylate (7 parts of Aroex M-1, manufactured by Toagosei Co., Ltd.).
・実施例２：ポリエステルアクリレート（アロエックス
Ｍ−８０６０）６０部にポリオキシエチレンノニルフェ
ニルエーテル型非イオン界面活性剤（エマルゲン９３５
、花王アトラス社製）４部を溶解させ、ラボミキサーで
攪拌しながら徐々に蒸溜水４６部を添加して調製した水
中油滴型エマルジョン。・Example 2: Polyoxyethylene nonylphenyl ether type nonionic surfactant (Emulgen 935) was added to 60 parts of polyester acrylate (Aroex M-8060).
An oil-in-water emulsion was prepared by dissolving 4 parts of 4 parts (manufactured by Kao Atlas Co., Ltd.) and gradually adding 46 parts of distilled water while stirring with a lab mixer.
・実施例３：側鎖に
を有するポリビニルアルコール（ＡＴ−１９７、大日本
インキ社製）の２０％水溶液。- Example 3: 20% aqueous solution of polyvinyl alcohol (AT-197, manufactured by Dainippon Ink Co., Ltd.) having in the side chain.
上記で得た３種類のプライマー層を有するシートのプラ
イマー層上に、次に掲げた２種類の方法で離型剤塗液を
それぞれ塗布・硬化せしめ、６種類の離型シートを得た
。On the primer layer of the sheet having the three types of primer layers obtained above, a release agent coating liquid was applied and cured by the following two methods, respectively, to obtain six types of release sheets.
■熱硬化型シリコーン系離型剤
シリコーン系樹脂の３０％トルエン溶液（ＫＳ−７７０
、信越化学社製＞１００部と触媒（Ｐ Ｌ −３、信越
化学社製）０．５部の混合物をトルエンで希釈した離型
剖検’ａ、＜固形分濃度５％）を、乾燥固形分が１ ｇ
ｌｒｄとなるように塗布し、１４０℃で２０秒間乾燥・
硬化させた。■Thermosetting silicone mold release agent 30% toluene solution of silicone resin (KS-770
, manufactured by Shin-Etsu Chemical Co., Ltd. > 100 parts and catalyst (PL-3, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.5 parts diluted with toluene. is 1 g
Apply it so that it becomes lrd, and dry it for 20 seconds at 140℃.
hardened.
■電離性放射線硬化型離型剤
シリコーンアクリレート（Ｘ−６２−７１４４、信越化
学社製）を１ ｇ／ｎｌ塗布後塗布子線照射試験機を用
いて３ Ｍｒａｄの電子線を照射し、硬化させた。■After applying 1 g/nl of ionizing radiation-curable mold release agent silicone acrylate (X-62-7144, manufactured by Shin-Etsu Chemical Co., Ltd.), the coating was irradiated with an electron beam of 3 Mrad using an electron beam irradiation tester and cured. Ta.
かくして得られた６種類の離型シートについて、離型剤
の密着性、および剥離力を評価し、その結果を第１表に
示した。The six types of release sheets thus obtained were evaluated for the adhesion of the release agent and the peeling force, and the results are shown in Table 1.
里杢剋坐皇肴比
離型シートの離型剤塗布面を、指で５回強くこすり、離
型剤の脱落状態を評価した。The release agent coated surface of the release sheet was rubbed strongly with fingers five times to evaluate the state of release of the release agent.
○・・・脱落なし。○...No falling off.
△・・・脱落が若干認められる。△: Some falling off is observed.
×・・・脱落が多い。×: There is a lot of falling off.
鳳離力
剥離剤密着性評価前の離型シートにポリエステル粘着テ
ープ（３１Ｂテープ、日東電工社製）を貼り合わせ、２
０ｇ／ａｄの荷重をかけた状態で７０℃下、１６時間処
理した後、１８０°ピール剥離力（ｇ１５ａａ）を測定
した。A polyester adhesive tape (31B tape, manufactured by Nitto Denko Corporation) was attached to the release sheet before evaluation of release agent adhesion.
After processing at 70° C. for 16 hours under a load of 0 g/ad, the 180° peel force (g15aa) was measured.
比較例１〜４
基材として上質紙（坪量１０ｇ／ｒｄ、厚さ９０μ）を
使用し、その片面に下記のプライマー層用塗液を、固形
分が４ ｇ／ｒｄとなるように塗布・乾燥し、プライマ
ー層を有するシートを得た。Comparative Examples 1 to 4 A high-quality paper (basis weight 10 g/rd, thickness 90 μ) was used as a base material, and the following primer layer coating liquid was applied to one side of the paper so that the solid content was 4 g/rd. After drying, a sheet having a primer layer was obtained.
・比較例１：顔料塗工液（カオリン／ＳＢＲラテックス
固形比＝９０／１０、濃度５５％）。Comparative Example 1: Pigment coating liquid (kaolin/SBR latex solid ratio = 90/10, concentration 55%).
・比較例２：ポリビニルアルコール（ＰＶＡＩＯ５、ク
ラレ社製）の１０％水溶液。Comparative Example 2: 10% aqueous solution of polyvinyl alcohol (PVAIO5, manufactured by Kuraray Co., Ltd.).
・比較例３：熔融ポリエチレン。- Comparative Example 3: Molten polyethylene.
・比較例４ニブライマ一層を設けない。- Comparative Example 4 No nib primer layer was provided.
得られたシートを用いた以外は実施例１〜３と同様にし
て８種類の離型シートを調製した。これらの離型シート
を用い、実施例１〜３と同様にして、離型剤の密着性、
および剥離力を評価し、その結果を第１表に示した。Eight types of release sheets were prepared in the same manner as in Examples 1 to 3, except that the obtained sheets were used. Using these release sheets, the adhesion of the release agent,
and peel strength were evaluated, and the results are shown in Table 1.
第１表
Ａ１）：熱硬化型シリコーン系離型剤
ｆ３ｔ＞：電離性放射線硬化型離型剤
実施例４．５
基材としてポリプロピレンフィルム（厚さ５０μ）を使
用した以外は、実施例１及び３と同様に行って４種類の
離型シートを調製し、評価した。Table 1 A1): Thermosetting silicone mold release agent f3t>: Ionizing radiation curable mold release agent Example 4.5 Example 1 and Four types of release sheets were prepared and evaluated in the same manner as in Example 3.
その結果を第２表に示した。The results are shown in Table 2.
比較例５〜８
基材としてポリプロピレンフィルム（厚さ５０μ）を使
用した以外は、比較例１〜４と同様に行って８種類の離
型シートを調製し、評価した。その結果を第２表に示し
た。Comparative Examples 5 to 8 Eight types of release sheets were prepared and evaluated in the same manner as Comparative Examples 1 to 4, except that a polypropylene film (thickness: 50 μm) was used as the base material. The results are shown in Table 2.
第２表
Ａ” ：熱硬化型シリコーン系離型剤
実施例６．７
基材としてアルミ箔（厚さ５０μ）を用いた以外は実施
例１及び２と同様にして４種類の離型シートを調製し、
評価した。結果を第３表に示した。Table 2 A'': Thermosetting silicone mold release agent Example 6.7 Four types of release sheets were prepared in the same manner as in Examples 1 and 2, except that aluminum foil (thickness 50μ) was used as the base material. Prepare,
evaluated. The results are shown in Table 3.
比較例９〜１２
基材としてアルミ箔（厚さ５０μ）を用いた以外は比較
例１〜４と同様にして８種類の離型シートを調製し、評
価した。結果を第３表に示した。Comparative Examples 9 to 12 Eight types of release sheets were prepared and evaluated in the same manner as Comparative Examples 1 to 4, except that aluminum foil (thickness: 50 μm) was used as the base material. The results are shown in Table 3.
第３表
Ａｌｌ、熱硬化型シリコーン系離型剤
Ｂ２）：電離性放射線硬化型離型剤
実施例８．９
基材としてレーヨンをベースにした不織布（坪量３５
ｇ／ｃｄ、厚さ１００μ）を使用した以外は実施例１お
よび３と同様にして４種類の離型シートを調製し、評価
した。結果を第４表に示した。Table 3 All, Thermosetting silicone mold release agent B2): Ionizing radiation curing mold release agent Example 8.9 Nonwoven fabric based on rayon as base material (basis weight 35
Four types of release sheets were prepared and evaluated in the same manner as in Examples 1 and 3, except that 4 types of release sheets were used. The results are shown in Table 4.
比較例１３〜１６
基材としてレーヨンをベースにした不織布（坪量３５ｇ
／ｍ、厚さ１００μ）を使用した以外は比較例１〜４と
同様に行って８種類の離型シートを調製し、評価した。Comparative Examples 13 to 16 Rayon-based nonwoven fabric (basis weight 35 g
Eight types of release sheets were prepared and evaluated in the same manner as in Comparative Examples 1 to 4, except that the mold release sheet was 100 μm thick and 100 μm thick).
その結果を第４表に示した。The results are shown in Table 4.
第４表
Ａｌｌ、熱硬化型シリコーン系離型剤
Ｂ２）：電離性放射線硬化型離型剤
「効果」
第１〜４表から明らかなように、本発明の方法によって
得られる離型シートは、離型剤の密着性が改良されてい
るばかりでなく、極めて剥離性に優れた離型シートであ
った。Table 4 All, Thermosetting silicone mold release agent B2): Ionizing radiation curing mold release agent "Effect" As is clear from Tables 1 to 4, the mold release sheet obtained by the method of the present invention has the following properties: The release sheet not only had improved adhesion to the release agent, but also had extremely excellent releasability.
Claims (2)
層を有する離型シートの製造方法において、該プライマ
ー層に電離性放射線硬化型樹脂を含有せしめ、電離性放
射線を照射することを特徴とする離型シートの製造方法
。(1) A method for manufacturing a release sheet having a primer layer and a release agent layer on at least one side of a base material, characterized in that the primer layer contains an ionizing radiation-curable resin and is irradiated with ionizing radiation. A method for manufacturing a release sheet.
層である請求の範囲第（１）項記載の製造方法。(2) The manufacturing method according to claim (1), wherein the mold release agent layer is a layer containing an ionizing radiation-curable mold release agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7225086A JPS62227469A (en) | 1986-03-28 | 1986-03-28 | Preparation of release sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7225086A JPS62227469A (en) | 1986-03-28 | 1986-03-28 | Preparation of release sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62227469A true JPS62227469A (en) | 1987-10-06 |
Family
ID=13483861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7225086A Pending JPS62227469A (en) | 1986-03-28 | 1986-03-28 | Preparation of release sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62227469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2699166A1 (en) * | 1992-12-16 | 1994-06-17 | Grace W R & Co | Method of forming a vermiculite film. |
| KR20010044272A (en) * | 2001-01-31 | 2001-06-05 | 이정훈 | Film releasing carrier for produce lamination film of leather or artificial leather |
-
1986
- 1986-03-28 JP JP7225086A patent/JPS62227469A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2699166A1 (en) * | 1992-12-16 | 1994-06-17 | Grace W R & Co | Method of forming a vermiculite film. |
| KR20010044272A (en) * | 2001-01-31 | 2001-06-05 | 이정훈 | Film releasing carrier for produce lamination film of leather or artificial leather |
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