Thermal transfer printing method and printing paper therefor

Details Thermal transfer printing method and printing paper therefor Thermal transfer printing method and printing paper therefor

1982-07-21

1985-03-19

Hess, Bruce H.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

8470, 8471, 8532, 8919, 3461351, 428206, 428211, 428323, 428481, 428511, 428535, 428536, 4285375, 428913, 428914, G01D 1534

Patent

active

045059756

ABSTRACT:
In a thermal transfer-type printing method in which an image is formed on printing paper by the selective transfer thereto of disperse dye from a dye carrier of flexible sheet material in response to the selective application of thermal energy to the carrier while in contact with a surface of the printing paper, the latter is comprised of a base of cellulose fibers and resin into which the disperse dye diffuses for producing a clear definition of the image. The resin is desirably polyester or acetyl cellulose either in the form of fibers which are co-mingled with the cellulose fibers in the base of the printing paper, or in the form of a coating on a surface of the paper base. After the image has been formed by thermal transfer on a surface of the printing paper, a thin transparent film, preferably of polyester, is laminated over the printed surface by a polyester adhesive and the application of heat and pressure so that recrystallized disperse dye remaining on the surface of the printing paper is further diffused into the polyester adhesive.

REFERENCES:
patent: 1785260 (1930-12-01), Horii
patent: 2031854 (1936-02-01), Richter
patent: 3927237 (1975-12-01), Sund
patent: 4132833 (1979-01-01), Sandhu
patent: 4253838 (1981-03-01), Mizuno et al.
patent: 4269891 (1981-05-01), Minagawa
patent: 4397483 (1983-08-01), Hiraishi et al.

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