Radiation sensitive compositions

Details Radiation sensitive compositions Radiation sensitive compositions

G - Physics

03

C

96/161

G03C 1/52 (2006.01) G03F 7/105 (2006.01) G03F 7/40 (2006.01)

Patent

CA 1253728

-1- IMPROVEMENTS IN OR RELATING TO RADIATION SENSITIVE COMPOSITIONS ABSTRACT Radiation sensitive compositions are image-wise exposed and developed to form an image which is then heated to improve its strength as a lithographic printing image or etch resist. The heating is carried out in the presence of a heat sensitive dye which undergoes a colour change at a temperature of at least 180°C so as to obtain an indication of whether or not the heating has been adequate. The dye may be an integral component of the composition or it may be applied to the image, after development, in combination with a substance capable of forming a shield against contaminating residues produced during the heating step.

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