Thermal transfer image-receiving sheet

Details Thermal transfer image-receiving sheet Thermal transfer image-receiving sheet

1992-11-06

1994-08-30

Hess, B. Hamilton

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

428195, 428412, 428480, 428913, 428914, B41M 5035, B41M 538

Patent

active

053428196

ABSTRACT:
The present invention provides a thermal transfer image-receiving sheet which can form an image excellent in the coloring density, sharpness and various types of fastness, particularly durability such as light fastness, fingerprint resistance and plasticizer resistance according to a thermal transfer printing process wherein use is made of a sublimable dye, and can be easily produced by conventional coating equipment through the use of a non-halogenated hydrocarbon solvent, such as a ketone solvent, a toluene solvent or a mixture thereof.
A first embodiment of the invention is directed to a thermal transfer image-receiving sheet including a substrate sheet and a dye-receiving layer formed on at least one surface of the substrate sheet, wherein the dye-receiving layer includes a random copolycarbonate resin having structural units represented by the following general formulae (1) and (2), the molar ratio of the structural unit represented by the general formula (1) to the structural unit represented by the general formula (2) being 30:70 to 70:30 ##STR1## wherein R.sup.1 to R.sup.8 stand for hydrogen, a halogen or an alkyl group having 1 to 4 carbon atoms, A stands for a straight-chain, branched or cyclic alkylidene group having 1 to 10 carbon atoms, an aryl-substituted alkylidene group, an aryl group or a sulfonyl group and B stands for an oxygen atom or a sulfur atom.
The second invention is directed to a thermal transfer image-receiving sheet comprising a substrate sheet and a dye-receiving layer formed on at least one surface of the substrate sheet, wherein said dye-receiving layer comprises at least a polycarbonate resin and an aromatic polyester resin.

REFERENCES:
patent: 4748151 (1988-05-01), Murata et al.
patent: 4897377 (1990-01-01), Marbrou
patent: 4908345 (1990-03-01), Egashira et al.

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