Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...
Patent
1996-08-29
1997-09-23
Chu, John S.
Radiation imagery chemistry: process, composition, or product th
Diazo reproduction, process, composition, or product
Composition or product which contains radiation sensitive...
430157, 430165, 430193, 430302, 430331, B03F 732
Patent
active
056702949
ABSTRACT:
The present invention relates to an aqueous alkaline developing solution comprising an alkaline mixture of an alkali metal silicate and/or an alkali metal metasilicate, wherein the M.sub.2 O/SiO.sub.2 molar ratio of said alkaline mixture is in the range of from 0.5 to 1.2, the total content of said alkaline mixture being in the range of from 6 to 15% by weight of the total developing solution, and wherein said developing solution comprises a non-ionic surfactant and at least another surfactant selected from the group consisting of anionic surfactants and amphoteric surfactants. An alkali metal hydroxide can be optionally added to the alkaline mixture. Also claimed is the concentrated developing solution to be diluted to the desired strength.
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Chu John S.
Imation Corp
Litman Mark A.
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