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

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

1988-02-11

1988-10-04

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 427146, 427256, 428195, 428212, 428412, 4284231, 428913, 428914, B41M 5035, B41M 526

Patent

active

047756578

ABSTRACT:
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 T.sub.g of at least 40.degree. C. less than the T.sub.g 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.

REFERENCES:
patent: 4626256 (1986-12-01), Kawasaki et al.
patent: 4695286 (1987-09-01), Vanier et al.

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