Heat-resistant, thermal-sensitive transfer sheet
AssigneeDai Nippon Insatsu Kabushiki Kaisha
InventorsAkira Mizobuchi, Yoshiaki Hida, Shigeki Umise, Kyoichi Yamamoto, Kyohei Takahashi
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Abstract
A heat-resistant thermal transfer sheet comprising a base film provided on one surface thereof with a hot melt ink layer and with a heat-resistant protective layer on the other surface thereof. The heat-resistant protective layer is produced from a composition comprising (a) a thermoplastic resin having an OH or COOH group, (b) a polyamine or polyisocyanate, and (c) a thermoplastic resin, or a composition based on a silicone-modified resin. The heat transfer sheet of the present invention prevents sticking and blocking problems and makes it possible to carry out printing smoothly.
Claims10
A heat-resistant thermal transfer sheet comprising a base film, a hot melt ink layer provided on one surface of the base film, and a heat-resistant protective layer provided on the other surface of said base film;
- said heat-resistant protective layer being produced from a composition comprising (a) a first thermoplastic resin having an OH or COOH group, (b) a polyamine or polyisocyanate, and (c) a second thermoplastic resin selected from the group consisting of acrylic resins, polyester resins, vinylidene fluoride resins, vinylidene fluoride-tetrafluoroethylene copolymer resins, polyvinyl fluoride resins, acrylonitrilestyrene copolymer resins, acryl-vinyl chloride copolymer resins, nitrile rubbers, nylons, polyvinyl carbazole resins, chlorinated rubbers, cyclized rubbers, polyvinyl acetate resins, polyvinyl chloride resins, and vinyl chloride-vinyl acetate copolymer resins, wherein said first thermoplastic resin and said second thermoplastic resin comprise different resins.
A heat-resistant thermal transfer sheet comprising a base film, a hot melt ink layer provided on one surface of the base film, and a heat-resistant protective layer provided on the other surface of said base film;
- said heat-resistant protective layer comprising a silicone-modified resin produced from a silicone resin and a resin selected from the group consisting of acrylic resins, epoxy resins, melamine-formaldehyde resins, urea-formaldehyde resins, dioctyl phthalate, ethyl cellulose, phenol resins, rosin-modified phenol resins, polyester resins, epoxy ester resins, alkyd resins, and styrenated alkyd resins.
Dependencies are inferred from the claim text.