Dyesheets

Details Dyesheets Dyesheets

1988-06-06

1990-04-24

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428913, 428914, B41M 5035, B41M 526

Patent

active

049200925

ABSTRACT:
A thermal transfer dyesheet, comprising a supportive base material coated with a composition of a thermally transferable dye dispersed uniformly throughout a polymeric binder matrix, also contains in its coating composition a crystallization inhibitor having a molecular structure consisting essentially of a polymer backbone to which are chemically bonded a multiplicity of groups having substantially the same shape, charge distribution and hydrogen bonding pattern as the dye or substantial portion thereof.
Provision of such crystallization inhibitors serves to reduce the problems of roughness on the dyesheet surface, and the dirty surfaces which both have tended to occur in previous dyesheets as the dye molecules migrate to the surface and combine to form crystals there.

REFERENCES:
patent: 4720480 (1988-01-01), Ito et al.

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