发明授权
US4548887A Dye diffusion transfer process wherein proteolytic enzyme decomposes
light sensitive element
失效
染料扩散转移过程,其中蛋白水解酶分解光敏元素
- 专利标题: Dye diffusion transfer process wherein proteolytic enzyme decomposes light sensitive element
- 专利标题(中): 染料扩散转移过程,其中蛋白水解酶分解光敏元素
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申请号: US627557申请日: 1984-07-03
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公开(公告)号: US4548887A公开(公告)日: 1985-10-22
- 发明人: Gunter Helling , Wolfgang Himmelmann
- 申请人: Gunter Helling , Wolfgang Himmelmann
- 申请人地址: DEX Leverkusen-Bayerwerk
- 专利权人: AGFA-Gevaert A.G.
- 当前专利权人: AGFA-Gevaert A.G.
- 当前专利权人地址: DEX Leverkusen-Bayerwerk
- 优先权: DEX3325762 19830716
- 主分类号: G03C8/00
- IPC分类号: G03C8/00 ; G03C8/52 ; G03C5/54 ; G03C1/40 ; G03C7/26
摘要:
Colored dye diffusion images are produced using a recording material containing, on a layer support (layer element 1), a first dye absorbent layer (layer element 2), a light-sensitive element containing silver halide emulsion layers and color-providing compounds (layer element 3) and optionally a second dye absorbent layer (layer element 4), in that order. An imagewise distribution of diffusible dyes is produced in the light-sensitive element in the course of development and transferred to the first dye absorbent layer.The light-sensitive element is then decomposed by a treatment which decomposes its layers, e.g. by means of a proteolytic enzyme, but leaves the first dye absorbent layer intact. The second dye absorbent layer optionally present, which has a lower mordanting capacity than the first dye absorbent layer and serves to prevent contamination of the developer bath with diffusible dyes, is also decomposed.
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