发明名称 Improved photographic material for tanning development and method for obtaining a relief image.
摘要 <p>A photographic material for tanning development which comprises a photographic support base, at least one tannable binder material, at least one silver halide emulsion and at least one pigment, said material including a 3-pyrazolidone compound and at least two different 1,4-dihydroxybenzene compounds, the first of which is chosen within the group of those having a standard tanning development time (STDT) of one fourth to twice the hydroquinone STDT (STDTHy) and the second of which is chosen within the group of those having a STDT of one fourth to fifteen times the STDTHy.</p><p>Most preferably, the above photographic material includes hydroquinone in addition to the 3-pyrazolidone compound and the two 1,4-dihydroxybenzene compounds, wherein the first 1,4-dihydroxybenzene compound, other than hydroquinone, is chosen within the group of those having a STDT of one fourth to twice the STDTHy and the second 1,4-dihydroxybenzene compound is chosen within the group of those having a STDT of two to fifteen times the STDTHy.</p><p>A method to obtain relief images by using the above said photographic material.</p>
申请公布号 EP0203468(A2) 申请公布日期 1986.12.03
申请号 EP19860106600 申请日期 1986.05.15
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 BERUTO, MARCO;LUZZI, ANTONIO;RAMELLO, PIERO
分类号 G03C1/42;G03C5/30;G03C5/315;(IPC1-7):G03C5/36 主分类号 G03C1/42
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