Thermal dye transfer dye-donor element with transferable protection overcoat
AssigneeEastman Kodak Company
InventorsMary Catherine S. Oldfield, William H. Simpson, Kin K. Lum
Life of this patent
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Abstract
A dye-donor element for thermal dye transfer comprising a support having thereon a coextensive subbing layer and at least one dye layer area comprising an image dye in a binder and another area comprising a transferable protection layer, the transferable protection layer area being approximately equal in size to the dye layer area, the transferable protection layer having associated therewith a release material comprising a multi-hydroxyl compound, the alkali or alkaline earth metal salt of an alkyl diphenyloxide disulfonate, or an organic phosphate ester.
Claims20
A dye-donor element for thermal dye transfer comprising a support having thereon a coextensive subbing layer and at least one dye layer area comprising an image dye in a binder and another area comprising a transferable protection layer, said transferable protection layer area being approximately equal in size to said dye layer area, said transferable protection layer having associated therewith a release material comprising a multi-hydroxyl compound, the alkali or alkaline earth metal salt of an alkyl diphenyloxide disulfonate, or an organic phosphate ester.
A process of forming a protection layer on top of a thermal dye transfer image comprising:
- (I) imagewise-heating a dye-donor element comprising a support having thereon a coextensive subbing layer and a dye layer comprising an image dye in a binder, said dye-donor being in contact with a dye-receiving element, thereby transferring a dye image to said dye-receiving element to form said dye transfer image;
- and
- (II) thermally transferring a protection layer on top of said transferred dye image, said transferable protection layer being applied from an element which contains a release material comprising a multi-hydroxyl compound, the alkali or alkaline earth metal salt of an alkyl diphenyloxide disulfonate, or an organic phosphate ester.
A thermal dye transfer assemblage comprising
- (A) a dye-donor element for thermal dye transfer comprising a support having thereon a coextensive subbing layer and at least one dye layer area comprising an image dye in a binder and another area comprising a transferable protection layer, said transferable protection layer area being approximately equal in size to said dye layer area, and
- (B) a dye receiving element comprising a support having thereon a dye image-receiving layer,
- said dye-receiving element being in a superposed relationship with said dye-donor element so that said dye layer is in contact with said dye image-receiving layer;
- said transferable protection layer containing a multi-hydroxyl compound, the alkali or alkaline earth metal salt of an alkyl diphenyloxide disulfonate, or an organic phosphate ester.
Dependencies are inferred from the claim text.