Photographic printing paper support

Details Photographic printing paper support Photographic printing paper support

1991-09-23

1993-02-09

Sluby, P. C.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428414, 428513, 428530, 430598, 1621682, B32B 2738, G03C 178

Patent

active

051852020

ABSTRACT:
A photographic printing paper support is described in which a raw paper material is prepared at a neutral pH range using a copolymer-type cationic polyacrylamide in the presence, when required, of an epoxidized higher fatty acid amide, both sides of the raw paper being coated with a polyolefin resin. Based on this production process, the permeation of developing solution into the support at the time of development processing can be sufficiently prevented. Also, wetting on the wire during the manufacture of the support can be improved. With the use of the epoxidized higher fatty acid amide as a sizing agent, the production cost can be reduced significantly.

REFERENCES:
patent: 3255072 (1966-06-01), Sheetz et al.
patent: 3692092 (1972-09-01), Longoria
patent: 4504576 (1985-03-01), Kemme
patent: 4675245 (1987-06-01), Von Meer
patent: 4731291 (1988-03-01), Kerhoff
patent: 4820582 (1989-04-01), Merz et al.
James P. Casy, ed., "Pulp and Paper Chemistry and Chemical Technology", third edition, vol. III, 1981, John Wiley and Sons, New York, pp. 1458-1461.
Patent Abstracts of Japan, vol. 11, No. 279 (P-614) (2726) Sep. 10, 1987.
Journal of Applied Photographic Engineering, vol. 7, No. 3, 1981, pp. 67-72; Klaus B. Kasper et al., "Chemical Formulations and Requirements of Photographic Paper", p. 69.

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