Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1994-07-06
1995-05-09
Schwartz, Pamela R.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
428195, 428327, 428500, 428521, 428913, 428914, B41M 500
Patent
active
054138540
ABSTRACT:
An OHP sheet for a thermal transfer printer in which the ink receiving layer is a transparent, porous layer, having cushioning characteristics when the sheet is printed, and in which the layer becomes transparent by heat treatment after printing, the OHP sheet having an excellent capacity of the representation of dots in detailed portion and tone gradation.
The OHP of the present invention is made of a transparent plastic sheet having an ink receiving layer on at least one side thereof, the ink receiving layer being a porous layer which contains polymer particles in which the glass transition temperature is 30.degree.-150.degree. C. and the particle size is 0.05-2 .mu.m, further the ink receiving layer being opaque under normal temperatures and becoming transparent when the layer is heated at 30.degree.-150.degree. C.
REFERENCES:
patent: 5169468 (1992-12-01), Royce et al.
Nisshinbo Industries Inc.
Schwartz Pamela R.
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