摘要:
An improved development process for relief structures based on radiation-crosslinked polymeric precursors of polymers which are resistant to high temperature in which the development fluid used is an aliphatic or cycloaliphatic ketone having 3 to 7 carbon atoms, is distinguished by rapid and complete removal of soluble polymeric material from the substrate with, at the same time, a minimum amount of attack on the radiation-crosslinked polymeric structures.
摘要:
In indicators comprising a carrier such as cellulose saturated with one or more azo dyes having reactive groups capable of forming a chemical bond with the carrier material, the improvement wherein the indicator is made non-bleeding by using such dyes which, in addition to the reactive group, contain at least one additional sulfonic acid and/or carboxylic acid group, an example of such a dye being 4-anilino-3'-(2-hydroxysulfonyloxyethylsulfonyl)-azobenzene-6'-carboxylic acid.
摘要:
In colorimetric indicators comprising a carrier such as cellulose saturated with one or more azo dyes having reactive groups capable of forming a chemical bond with the carrier material, the improvement wherein the indicator is made non-bleeding by using such dyes which, in addition to the reactive group, contain at least one additional sulfonic acid and/or carboxylic acid group, an example of such a dye being 4-anilino-3'-(2-hydroxysulfonyloxyethylsulfonyl)-azobenzene-6'-carboxylic acid.