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# (12) United States Patent 

# Haye et al. 

# (54) METHODS OF PROVIDING COLOR PHOTOGRAPHIC IMAGE USING ACIDIC STOP AND RINSE SOLUTIONS 

(75) Inventors: Shirleyanne E. Haye, Rochester, NY (US); Janet M. Huston, Webster, NY (US) 

(73) Assignee: Eastman Kodak Company, Rochester, NY (US) 

( *) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 46 days. 

(21) Appl. No.: 10/696,819 

Oct. 30, 2003 (22) Filed: 

## (65) Prior Publication Data 

US 2005/0094996 Al May 5, 2005 

(51) Int. Cl.7 ................................................ G03C 7/42 

(52) U.S. Cl. ....................... 430/427; 430/393; 430/430 

(58) Field of Search ................................ 430/427, 393, 430/430 

## (56) References Cited 

## U.S. PATENT DOCUMENTS 

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<img src='content_image/931637.jpg'>

# (10) Patent No.: US 6,958,208 B2 

# (45) Date of Patent: Oct. 25, 2005 

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U.S. Appl. No. 10/376,717, (D-85230) filed Feb. 28, 2003, titled "Photographic Peracid Bleaching Composition, Pro› cessing Kit, and Method of Use" by Shirleyanne Haye et al. Now USP 6,703,192. 

* cited by examiner 

Primary Examiner-Hoa Van Le 

(74) Attorney, Agent, or Firm-1. Lanny Tucker 

## (57) ABSTRACT 

Photographic processing of color photographic materials can be carried out using polyphosphonic acids or salts thereof in acidic "stop" solutions or wash solutions after color development. When used in acidic stop solutions, the polyphosphonic acid is preferably carried over into the bleaching solution to provide added stability of the bleach› ing agent. The acidic stop solutions can also include organic thiols that are used as bleaching accelerators when carried over into the bleaching solutions. 

US006958208B2 

## FOREIGN PATENT DOCUMENTS 

## OTHER PUBLICATIONS 

## 16 Claims, No Drawings 

