Multilayered thermal transfer medium with opaque sub-coat

Details Multilayered thermal transfer medium with opaque sub-coat Multilayered thermal transfer medium with opaque sub-coat

1996-06-27

1998-10-20

Schwartz, Pamela R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428195, 428219, 428341, 428484, 4284881, 4284884, 428913, 428914, B41M 526

Patent

active

058243992

ABSTRACT:
A thermal transfer medium is provided which is sufficiently opaque to be sensed by optical sensing means, yet forms images which can be transparent or semi-transparent (or opaque). The thermal transfer medium comprises a transparent substrate and multi-layer structure of a thin first coat and a thick second coating. The coatings are formulated such that only the second coating transfers to a receiving substrate upon exposure to a print head of a thermal printer leaving the first coat positioned on the transparent substrate. Separation of the two coatings allows the transparency/opacity of the image to be independent of the transparency/opacity of the first coats and the thermal transfer medium.

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