Imaging medium with bubble-suppressant layer

Details Imaging medium with bubble-suppressant layer Imaging medium with bubble-suppressant layer

B - Operations, Transporting

41

M

B41M 5/30 (2006.01) B41M 5/40 (2006.01) B41M 5/44 (2006.01)

Patent

CA 2084988

2084988 9219454 PCTABS00017 An imaging medium (10) capable of being imaged to form a transparency comprises a substantially transparent support (12) having a thickness of at least 20 µm, a color-forming layer (16, 22, 26) superposed on the support and comprising a color-forming composition adapted to undergo a change of color upon increase in the temperature of the color-forming layer (16, 22, 26) above a color-forming temperature for a color-forming time; and a bubble-suppressant layer (32) superposed on the color-forming layer (16, 22, 26) and having a thickness of at least 10 µm. Upon imagewise increase in the temperature of the color-forming layer (16, 22, 26) above the color-forming temperature for the color-forming time, in heated regions the color-forming layer (16, 22, 26) undergoes its change of color but remains essentially free from bubbles, thereby providing an image in which the colored regions are not blackened when viewed in transmission.

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