PRINT INK COMPOSITION FOR LAMINATE AND EASY-TO-TEAR LAMINATE

To provide a print ink composition for laminate that can exhibit excellent color development and easy tearability and can contribute to prevention of global warming and reduction of environmental load.SOLUTION: A print ink composition for laminate contains a pigment, a binder resin, a polyfunctional...

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Bibliographische Detailangaben
Hauptverfasser:	HARADA JUNICHI, SHINDO YUTO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING CORRECTING FLUIDS DYES FILLING PASTES HANDLING THIN OR FILAMENTARY MATERIAL INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PACKAGES PACKAGING ELEMENTS PACKING PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES STAMPS STORING TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	To provide a print ink composition for laminate that can exhibit excellent color development and easy tearability and can contribute to prevention of global warming and reduction of environmental load.SOLUTION: A print ink composition for laminate contains a pigment, a binder resin, a polyfunctional isocyanate compound as a curing agent, and an organic solvent. The polyfunctional isocyanate compound has a trifunctional isocyanate compound having an isocyanurate ring, and the binder resin is the following (1) or (2). (1) A polyurethane resin having a reactive group that can react with an isocyanate group of the isocyanate compound, and a. the solid content ratio between the polyurethane resin and the curing agent is, in a mass ratio, [polyurethane resin: curing agent=1: 0.1-0.5]. (2) A polyurethane resin and a polyvinyl chloride vinyl acetate copolymer and/or a polyvinyl chloride acrylic copolymer, in which at least one of the polyurethane resin, polyvinyl chloride vinyl acetate copolymer and polyvinyl chloride acrylic copolymer has a reactive group that can react with an isocyanate group of the isocyanate compound, and b. the solid content ratio between the total of the polyurethane resin, the polyvinyl chloride vinyl acetate copolymer and polyvinyl chloride acrylic copolymer and the curing agent is, in a mass ratio, [(polyurethane resin+polyvinyl chloride vinyl acetate copolymer+polyvinyl chloride acrylic copolymer): curing agent=1: 0.1-0.5].SELECTED DRAWING: None 【課題】良好な発色性及び易引き裂き性を発揮でき、地球温暖防止や環境負荷の低減に寄与できるラミネート用印刷インキ組成物を得ること。【解決手段】顔料、バインダー樹脂、硬化剤として多官能イソシアネート化合物、有機溶剤を含有するラミネート用印刷インキ組成物であって、該多官能イソシアネート化合物がイソシアヌレート環を有する３官能イソシアネート化合物を含有し、該バインダー樹脂が下記（１）又は（２）であるラミネート用印刷インキ組成物。（１）該イソシアネート化合物のイソシアネート基と反応しうる反応基を有するポリウレタン樹脂であり、且つａ．該ポリウレタン樹脂と硬化剤の固形分比率が、質量比でポリウレタン樹脂：硬化剤＝１：０．１〜０．５である。（２）ポリウレタン樹脂及び、塩化ビニル酢酸ビニル共重合体及び／又は塩化ビニル・アクリル系共重合体であって、ポリウレタン樹脂、塩化ビニル酢酸ビニル共重合体及び塩化ビニル・アクリル系共重合体の少なくとも一つが、該イソシアネート化合物のイソシアネート基と反応しうる反応基を有しており、ｂ．該ポリウレタン樹脂と該塩化ビニル酢酸ビニル共重合体と塩化ビニル・アクリル系共重合体の合計と硬化剤の固形分比率が、質量比で（ポリウレタン樹脂＋塩化ビニル酢酸ビニル共重合体＋塩化ビニル・アクリル系共重合体）：硬化剤＝１：０．１〜０．５である。【選択図】なし