PRINTING INK COMPOSITION FOR LAMINATES AND EASILY TEARABLE LAMINATE

An object of the present invention is to provide a printing ink composition for laminate that can demonstrate good color development property and tearing property, as well as an easily tearable laminate obtained by printing such printing ink composition for laminate on a base film and then applying...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NATSUKI Ken, HARADA Junichi, MAEOKA Yoshiaki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES TRANSPORTING USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An object of the present invention is to provide a printing ink composition for laminate that can demonstrate good color development property and tearing property, as well as an easily tearable laminate obtained by printing such printing ink composition for laminate on a base film and then applying an adhesive and layering a sealant film thereon. As a means for achieving the object, a printing ink composition for laminate containing a pigment, a binder resin, a polyfunctional isocyanate compound as curing agent, and an organic solvent, is provided, wherein such printing ink composition for laminate is characterized in that: the binder resin is a polyurethane resin and a vinyl chloride-vinyl acetate copolymer; at least one of the polyurethane resin and vinyl chloride-vinyl acetate copolymer has a reactive group that can react with the isocyanate group in the polyfunctional isocyanate compound; the ratio of the solid content of the polyurethane resin and that of the vinyl chloride-vinyl acetate copolymer is in a range of 9/1 to 1/9 (polyurethane resin / vinyl chloride-vinyl acetate copolymer); and the ratio of the sum of the solid contents of the polyurethane resin and vinyl chloride-vinyl acetate copolymer and the solid content of the curing agent is in a range of 1:0.2 to 0.9 ((polyurethane resin + vinyl chloride-vinyl acetate copolymer) : curing agent).