Nonfabric engraving blanket

Details Nonfabric engraving blanket Nonfabric engraving blanket

1973-07-30

1976-11-16

Coughenour, Clyde I.

Printing

Printing members

Plates

1014011, 156248, 156289, B41N 112, B32B 3120, C09J 502

Patent

active

039916731

ABSTRACT:
An engraving blanket which comprises an engraveable layer of live resilient rubber material vulcanized at one face to a face of a base layer of nonhard, nonresilient rubber material. Talcum powder is evenly dispersed between the vulcanized faces of the two layers to control the degree of adhesion between the two. This permits selected portions of the engraveable layer to be cut out and stripped from the base layer to produce a printing design and yet provides sufficient adhesion to keep the layers together during use of the blanket.

REFERENCES:
patent: 1233298 (1917-07-01), Baekeland
patent: 1367180 (1921-02-01), Darrow
patent: 1589665 (1926-06-01), Schmutz
patent: 1597432 (1926-08-01), Conant
patent: 1849598 (1932-03-01), Simms et al.
patent: 1941148 (1933-12-01), Keltie
patent: 1942683 (1934-01-01), Chambers
patent: 3276947 (1966-10-01), Waterman

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