Claims
- 1. A method of aqueous ink printing on an ink absorbing layer coated on a substrate, comprising printing an aqueous ink onto the ink absorbing layer, wherein said ink absorbing layer is a composition comprising polyvinyl alcohol, chitosan and an aldehyde compound, and said ink exhibits a blotting of no more than 2.1 magnification and an ink absorbing rate of no more than 45 seconds.
- 2. A method of aqueous ink printing on an ink absorbing layer coated on a substrate as claimed in claim 1 wherein said ink printing is ink jet printing.
- 3. A method of aqueous ink printing on an ink absorbing layer coated on a substrate as claimed in claim 1 wherein said ink printing is ink pen-type printing.
- 4. A method of aqueous ink printing on an ink absorbing layer coated on a substrate as claimed in claim 1 wherein a ratio of said polyvinyl alcohol, chitosan and an aldehyde compound to be formulated is 1 to 50 parts by weight of chitosan and 0.1 to 10 parts by weight of the aldehyde compound, based on 100 parts by weight of the polyvinyl alcohol.
Priority Claims (1)
Number |
Date |
Country |
Kind |
62-8818 |
Jan 1987 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07.397,373 filed on Aug. 24, 1989, now abandoned which is a continuation of Ser. No. 07/282,966, filed Dec. 6, 1988, abandoned, which is a continuation of Ser. No. 07/141,502, filed Jan. 7, 1988, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4474847 |
Schroder et al. |
Oct 1984 |
|
4708947 |
Maruyama et al. |
Nov 1987 |
|
Foreign Referenced Citations (5)
Number |
Date |
Country |
187673 |
Jul 1986 |
EPX |
162382 |
Jul 1986 |
JPX |
162383 |
Jul 1986 |
JPX |
211356 |
Sep 1986 |
JPX |
211357 |
Sep 1986 |
JPX |
Continuations (3)
|
Number |
Date |
Country |
Parent |
397373 |
Aug 1989 |
|
Parent |
282966 |
Dec 1988 |
|
Parent |
141502 |
Jan 1988 |
|