发明名称 |
Photographic printing process, and composition and device for use therein |
摘要 |
The invention provides a photographic printing process which consists of impregnating a support with a photosensitive composition comprising a leuco ester of a vat dyestuff, an acid-generating substance and a catalyst, squeezing out the said support, and exposing the latter to light. The invention also provides equipment for carrying out the process continuously comprising an impregnation tank, a cylindrical irradiation drum equipped with a light source of elongated shape, a neutralization tank, a buffering tank and a rinsing tank. The said drum is equipped to receive, on its outer surface, a photographic plate and a strip of impregnated woven fabric. This process makes it possible to produce monochrome or polychrome patterns with permanent colors.
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申请公布号 |
US4202662(A) |
申请公布日期 |
1980.05.13 |
申请号 |
US19780872547 |
申请日期 |
1978.01.26 |
申请人 |
BOUCHER, ROBERT;FOULQUIER-GAZAGNES, ANDRE |
发明人 |
BOUCHER, ROBERT;FOULQUIER-GAZAGNES, ANDRE |
分类号 |
D06P1/28;D06P5/20;G03C1/73;G03C1/76;(IPC1-7):D06P5/20 |
主分类号 |
D06P1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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