Overcoat for dye image-receiving layer used in thermal dye...

Details Overcoat for dye image-receiving layer used in thermal dye... Overcoat for dye image-receiving layer used in thermal dye...

B - Operations, Transporting

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B41M 5/26 (2006.01) B41M 5/44 (2006.01) B41M 7/00 (2006.01)

Patent

CA 1296525

OVERCOAT FOR DYE IMAGE-RECEIVING LAYER USED IN THERMAL DYE TRANSFER Abstract of the Disclosure A dye-receiving element for thermal dye transfer comprises a support having thereon a dye image-receiving layer, such as a polycarbonate, coated with an overcoat layer comprising a condensation polymer comprising recurring units of a linear chain having at least four carbon atoms, such as a polyester or a polyurethane, the overcoat layer having a Tg of at least 40°C less than the Tg of the dye image-receiving layer. Use of the overcoat layer of the invention helps to destratify the dye and improves stability of the transferred dyes to light.

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