(19)
(11) EP 0 409 597 A3

(12) EUROPEAN PATENT APPLICATION

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

(43) Date of publication A2:
23.01.1991 Bulletin 1991/04

(21) Application number: 90307858.2

(22) Date of filing: 18.07.1990
(51) International Patent Classification (IPC)5B41M 5/00
(84) Designated Contracting States:
DE GB

(30) Priority: 18.07.1989 JP 183634/89
25.07.1989 JP 190634/89
10.08.1989 JP 205718/89
15.11.1989 JP 295090/89
16.11.1989 JP 296050/89
28.11.1989 JP 306410/89

(71) Applicant: NEW OJI PAPER CO., LTD.
Tokyo 104 (JP)

(72) Inventors:
  • Yasuda, Kenji
    Yachiyo-shi, Chiba (JP)
  • Minato, Toshihiro
    Tokyo (JP)
  • Kato, Masaru
    Tokyo (JP)
  • Nagura, Toshikazu
    Tokyo (JP)
  • Arakawa, Hiroshi
    Tokyo (JP)

(74) Representative: Arthur, Bryan Edward et al
Withers & Rogers 4 Dyer's Buildings Holborn
London EC1N 2JT
London EC1N 2JT (GB)


(56) References cited: : 
   
       


    (54) Thermal transfer dye image-receiving sheet


    (57) A thermal transfer dye image-receiving sheet capable of receiving clear, uniform colored images without a formation of curls and wrinkles therein, comprising (A) a substrate sheet composed of (a) core sheet having a thermal shrinkage Y₃ , (b) a front coated thermoplastic film layer having a thickness T₁ and a thermal shrinkage Y₁ , and (c) a back coated thermoplastic film layer having a thickness T₂ and a thermal shrinkage Y₂ , the T₁ , T₂ , Y₁ , Y₂ and Y₃ satisfying the following relationships (1) and (2):
    Y₂ ≧ Y₁ ≧ 2Y₃      (1)
    and
    T₂ ≧ T₁      (2)
    wherein Y₁ , Y₂ and Y₃ are determined in accordance with JIS K 6734 (1975) at 100 ±2°C for 10 minutes.





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