Method of color photographic processing for color photographic papers
US6838233B2 · kind B2 · utility
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12References
14Claims
0Family size
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Key dates
| Filing date | Mar 3, 2004 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Mar 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C2200/52
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containing compounds that include a —N═C(SH)— group. The bleach-fixing composition can be prepared from a two-part bleach-fixing kit having two solutions that can be added directly to a processing chamber or premixed to form a replenisher solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.