(19)
(11) EP 0 410 724 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.08.1991 Bulletin 1991/34

(43) Date of publication A2:
30.01.1991 Bulletin 1991/05

(21) Application number: 90308150.3

(22) Date of filing: 25.07.1990
(51) International Patent Classification (IPC)5: B41M 5/40
(84) Designated Contracting States:
DE FR GB

(30) Priority: 26.07.1989 JP 194846/89

(71) Applicant: KONICA CORPORATION
Tokyo 160 (JP)

(72) Inventors:
  • Koshizuka, Kunihiro
    Hino-shi, Tokyo (JP)
  • Tezuka, Toshiaki
    Saitama-ken,336 (JP)
  • Mano, Shigeru
    Hino-shi, Tokyo (JP)
  • Takeyama, Toshihisa
    Hino-shi, Tokyo (JP)
  • Abe, Takao
    Hino-shi, Tokyo (JP)

(74) Representative: Ellis-Jones, Patrick George Armine et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)


(56) References cited: : 
   
       


    (54) Heat-transfer image recording medium


    (57) A heat-transfer recording medium is disclosure, which produces no lowering in transfer-density even when the medium is used under such higher-temperature conditions as in a facsimile equipoment and is capable of providing an easily readable transferred image having a low surface gloss, as well as having an excellent keep-secrecy and producing few voids. The recording medium comprises a support; a heat-transfer layer, provided on the support, comprising a thermo-fusible substance and a colorant; and a non-transfer layer which is interposed between the support and the transfer layer and comprises a colorant, a thermoplastic polymer selected from the following Group A and a thermoplastic polymer selected from the following Group B:
    Group A
    an α -olefin polymer, an α -olefin-maleic anhydride copolymer, an α -olefin-alkyl (metha)acrylate copolymer, an α -olefin-vinyl acetate copolymer, an α -olefin-(metha)acrylic acid copolymer, a vinyl acetate polymer, an alkyl (metha)acrylate polymer, a (metha)acrylic acid polymer and a styrene-containing polymer;
    Group B
    A polyester resin, a polyurethane resin, a polyvinyl chloride resin and an epoxy resin.







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