Method for preparing negative-working wash-off relief images and

Details Method for preparing negative-working wash-off relief images and Method for preparing negative-working wash-off relief images and

1994-06-29

1995-11-14

Lusignan, Michael

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

427145, 427264, 427273, 427353, B41M 520, B41M 524

Patent

active

054666538

ABSTRACT:
A method for preparing high resolution, negative-working, wash-off relief images, preferably using ink jet printing, comprising the sequential steps of: (a) providing a non-photosensitive layer comprising an acid-containing polymer; (b) applying an ink imagewise to the non-photosensitive layer to produce image areas and unimaged areas, said ink comprising an esterification agent which is capable of reacting with the acid groups in the polymer to form water-insoluble ester groups; (c) drying the non-photosensitive layer to induce or accelerate the esterification reaction between the acid groups and the esterification agent in the imaged areas; and (d) washing the non-photosensitive layer with an aqueous developer solution to remove the unimaged areas of the non-photosensitive layer is described.

REFERENCES:
patent: 5209814 (1993-05-01), Felten et al.
patent: 5270078 (1993-12-01), Walker et al.

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