Invention Grant
US5773202A Method for processing color photographic films using a peroxide
bleaching composition
失效
使用过氧化物漂白组合物处理彩色照相胶片的方法
- Patent Title: Method for processing color photographic films using a peroxide bleaching composition
- Patent Title (中): 使用过氧化物漂白组合物处理彩色照相胶片的方法
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Application No.: US625055Application Date: 1996-03-29
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Publication No.: US5773202APublication Date: 1998-06-30
- Inventor: Shirleyanne Elizabeth Haye , Terrence Robert O'Toole , David Leroy Cole , John Michael Buchanan
- Applicant: Shirleyanne Elizabeth Haye , Terrence Robert O'Toole , David Leroy Cole , John Michael Buchanan
- Assignee: Haye; Shirleyanne Elizabeth,O'toole; Terrence Robert,Cole; David Leroy,Buchanan; John Michael
- Current Assignee: Haye; Shirleyanne Elizabeth,O'toole; Terrence Robert,Cole; David Leroy,Buchanan; John Michael
- Main IPC: G03C1/035
- IPC: G03C1/035 ; G03C7/30 ; G03C7/42 ; G03C5/44 ; G03C5/12
Abstract:
A simple and effective bleaching method includes the use of a bleaching solution including a peroxide bleaching agent and chloride ion in an amount of at least 0.35 mol/l. An organic phosphonic acid or tertiary aminocarboxylic acid can also be present for stability. The method is useful for bleaching color photographic films containing at least 20 mol % silver bromide and from 0 to about 0.5 mol % silver iodide in at least one silver halide emulsion.
Public/Granted literature
- US5191438A Facsimile device with skew correction and text line direction detection Public/Granted day:1993-03-02
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