The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 12, 1994

Filed:

Oct. 26, 1992
Applicant:
Inventors:

Yutaka Tamura, Kanagawa, JP;

Yasuyuki Takagi, Kanagawa, JP;

Junichi Yamanouchi, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430537 ; 430627 ; 430628 ; 430523 ; 430539 ; 430496 ; 430621 ; 430963 ;
Abstract

A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the swelling ratio of the entire hydrophilic colloid layers on the acid polymer-containing layer side of the support of the silver halide photographic material having a hydrophilic colloid layer containing at least one acid polymer (having a carboxyl group-containing monomer unit content of at least 15 mol % or an acid value of at least 1.5 meq/g) on at least one silver halide emulsion layer-coated side thereof is at least 200% in distilled water, said acid polymer being dissolved in water and added to said hydrophilic colloid layer, and the swollen thickness of the above entire hydrophilic colloid layers at the time of the completion of the rinsing stage is not more than 8 .mu.m when said silver halide photographic material is processed (the swelling ratio in distilled water is a value obtained by incubating the photographic material at 40.degree. C. and 60% RH (percent relative humidity) for 16 hours, immersing it in distilled water at 21.degree. C. for 3 minutes and measuring the change of the thickness thereof).


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