Thermal transfer printing dyesheet and dye barrier composition t

Details Thermal transfer printing dyesheet and dye barrier composition t Thermal transfer printing dyesheet and dye barrier composition t

1988-10-26

1992-04-14

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

8471, 428195, 428413, 4284231, 428482, 428500, 428522, 428913, 428914, B41M 5035, B41M 526

Patent

active

051048477

ABSTRACT:
To enhance the optical density of colors produced by thermal transfer printing, a dyesheet is used having an intermediate dye-barrier layer between the substrate and the dyecoat. This layer consists essentially of a reaction product of polymerizing acrylic functional groups in a layer of a coating composition comprising: (a) an organic resin comprising at least one polyfunctional material having a plurality of pendant or terminal acrylic groups per molecule available for cross-linking, at least 50% by weight of the polyfunctional material having at least 4 such acrylic functional groups per molecule; and (b) at least one linear organic polymer soluble or partially soluble in the resin, and comprising 1-40% by weight of the resin/polymer mixture.

REFERENCES:
patent: 4027345 (1977-06-01), Fujisawa et al.
patent: 4695288 (1987-09-01), Ducharme
patent: 4700208 (1987-10-01), Vanier et al.

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