Method for preparing a hot melt ink transparency

Details Method for preparing a hot melt ink transparency Method for preparing a hot melt ink transparency

1987-05-14

1989-01-31

Lawrence, Evan

Coating processes

Optical element produced

Transparent base

427259, 427265, B05D 506

Patent

active

048014737

ABSTRACT:
A transparency includes a transparent substrate such as a polyester material, an ink pattern disposed on one surface of the transparent sheet in the form of three-dimensional ink spots having curved surfaces and a transparent layer covering the ink spots which has an index of refraction approximately the same as that of the ink spots. The transparent layer is applied to the substrate and the ink spots in the form of a liquid coating which wets the surfaces of the substrate and ink spots and spreads over them to produce a transparent layer having a maximum deviation of about 20 degrees from a plane parallel to the substrate.

REFERENCES:
patent: 3809568 (1974-05-01), Askew
patent: 4324815 (1982-04-01), Mitani et al.
patent: 4499162 (1985-02-01), Banks et al.
patent: 4528242 (1985-07-01), Burwasser
patent: 4547405 (1985-10-01), Bedell et al.
patent: 4555437 (1985-11-01), Tanck
patent: 4575465 (1986-03-01), Viola
patent: 4578285 (1986-03-01), Viola
patent: 4592954 (1986-06-01), Malhotra

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