Invention Grant
US5296337A Process for retouching photographic images containing a dye having a
cleavable ballast
失效
用于修饰含有具有可切割镇流器的染料的照相图像的方法
- Patent Title: Process for retouching photographic images containing a dye having a cleavable ballast
- Patent Title (中): 用于修饰含有具有可切割镇流器的染料的照相图像的方法
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Application No.: US872473Application Date: 1992-04-23
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Publication No.: US5296337APublication Date: 1994-03-22
- Inventor: J. Ramon Vargas , John W. Harder , Phillip D. Knight , Paul A. Burns , Lynda D. Weber
- Applicant: J. Ramon Vargas , John W. Harder , Phillip D. Knight , Paul A. Burns , Lynda D. Weber
- Applicant Address: NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: NY Rochester
- Main IPC: G03C7/18
- IPC: G03C7/18 ; G03C7/30 ; G03C7/32 ; G03C7/38 ; G03C11/00 ; G03C11/04 ; G03C11/18 ; G03G8/00 ; G03G5/92 ; G03G5/94 ; G03G7/00
Abstract:
There are described a method for retouching photographic images, compositions adapted for such retouching, and photographic elements containing dye-forming couplers that yield dye images that particularly lend themselves to retouching by this method. The method comprises contacting a photographic element containing a dye image with a defined retouching composition to solubilize and remove selected areas or amounts of dye. The composition comprises an aqueous basic solution of a dinucleophile and a water-soluble organic co-solvent. The preferred photographic element for application of this retouching method comprises a dye image formed from a pyrazoloazole magenta dye forming coupler having a cleavable ballast group joined to the remainder of the molecule by one or two electrophilic cleavage groups. The retouching composition cleaves the ballast from the dye and solubilizes the dye, allowing it to be washed from the element.
Public/Granted literature
- USD302945S Cassette package Public/Granted day:1989-08-22
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