Printing paper and newsprint paper with improved water absorptiv

Details Printing paper and newsprint paper with improved water absorptiv Printing paper and newsprint paper with improved water absorptiv

1995-12-28

1998-05-12

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Weight per unit area specified

4284788, 4284793, 4284796, 428510, 1621683, 1621647, B32B 2308

Patent

active

057502536

ABSTRACT:
Printing paper such as newspaper printing paper, the water absorbency of which is controlled by coating material for controlling water absorbency on the surface of base paper, wherein the coating material contains component A which is at least one water-soluble polyacrylamide selected from nonionic polyacrylamides, cationic polyacrylamides, and water-soluble polyacrylamides, and component B which is water-soluble anionic polymers of monomers having hydrophobic substitute(s) and monomers having at least carboxyl group(s) or sulfone group(s).

REFERENCES:
patent: 4135969 (1979-01-01), Cosper
patent: 5470918 (1995-11-01), Tsutumi et al.
"Recent Advances of Paper Strengthening Agent: The new mechanism of dry-strength development; The concept of anionic and cationic polyacrylamide mixing system", Pulp and Paper Technology Associate of Japan, vol. 45, No.2, (1991) pp. 29-33.

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