(19)
(11) EP 0 331 125 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.09.1990 Bulletin 1990/36

(43) Date of publication A2:
06.09.1989 Bulletin 1989/36

(21) Application number: 89103526.3

(22) Date of filing: 28.02.1989
(51) International Patent Classification (IPC)4: B41M 1/36
(84) Designated Contracting States:
AT BE CH DE ES FR GB IT LI NL SE

(30) Priority: 04.03.1988 JP 49676/88
09.05.1988 JP 110605/88
25.01.1989 JP 14042/89
27.01.1989 JP 18004/89

(71) Applicant: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Sakaki, Mamoru
    Sagamihara-shi Kanagawa-ken (JP)
  • Shimomura, Masako
    Yokohama-shi Kanagawa-ken (JP)
  • Munakata, Megumi
    Kawasaki-shi Kanagawa-ken (JP)
  • Nakatsugawa, Tomomi
    Kawasaki-shi Kanagawa-ken (JP)
  • Sato, Horoshi
    Yokohama-shi Kanagawa-ken (JP)

(74) Representative: Weser, Wolfgang 
Dres. Weser & Martin, Patentanwälte, Radeckestrasse 43
81245 München
81245 München (DE)


(56) References cited: : 
   
       


    (54) Recording medium and ink jet recording method by use thereof


    (57) A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity, and having a Stöckigt sizing degree according to JIS-P-8122 of 0 to 15 sec. An ink jet recording method performs recording by imparting small droplets of an aqueous ink to a recording medium, wherein said aqueous ink contains an acidic dye and/or a direct dye, and said recording medium comprises a surface layer composed mainly of aluminum oxide particles and a lower layer having ink absorptivity. A recording medium comprising a surface layer composed mainly of aluminum oxide particles containing polyaluminum hydroxide and/or polyaluminum chloride and a lower layer having ink absorptivity. A recording medium comprises a surface layer composed mainly of aluminum oxide particles having particle sizes of 5 µm or less provided on a liquid absorptive base paper.





    Search report