Graphic arts and graphic media

Details Graphic arts and graphic media Graphic arts and graphic media

1975-06-12

1977-08-23

Lesmes, George F.

Coating processes

Nonuniform coating

260 25B, 427373, 427379, 427385R, 428159, 428161, 428206, 428307, 428327, 428407, B05D 500

Patent

active

040441768

ABSTRACT:
Graphic arts media are provided which offer raised, three-dimensional effects. A basic medium is formulated of a colorant, film-forming binder, a solvent vehicle and thermally expandable microspheres. The microspheres are treated to preclude or inhibit solvation in the solvent vehicle by coating with a compound which is a non-solvent for the microspheres but which preferentially wets the surface thereof. Alkyl alcohols having about 3 to 5 carbon atoms in the alkyl chain are employed.
The medium is selectively applied to a substrate, dried, and heated to expand the microspheres.

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patent: 3615972 (1971-10-01), Morehouse, Jr. et al.
patent: 3906123 (1975-09-01), Vincent et al.

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