Thermal transfer donor element comprising a substrate having a m

Details Thermal transfer donor element comprising a substrate having a m Thermal transfer donor element comprising a substrate having a m

1993-10-28

1994-07-05

Schwartz, Pamela R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

428156, 428195, 428202, 428209, 428336, 428337, 428341, 428913, 428914, 430200, 430201, 430253, 430271, 430275, 430276, 430964, B41M 526

Patent

active

053266196

ABSTRACT:
Laser-addressable thermal transfer donor elements for producing color proofs, printing plates, films, printed circuit boards, and other media are disclosed. The thermal transfer donor elements include a substrate having a microstructured surface. The microstructured surface contain a plurality of randomly positioned discrete protuberances of varying heights and shapes. The donor elements further include a black metal layer on the microstructured surface and a gas-producing polymer layer over the black metal layer. The gas-producing polymer in the gas-producing polymer layer has a thermally available nitrogen content of greater than about 10 weight percent. A thermal mass transfer material (e.g., a colorant such as a dye or pigment) is included in or over the gas-producing polymer layer.

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