COMPRESSIBLE PRINTING BLANKET AND METHOD OF MAKING SAME

WIPO Patent Application WO/1993/009941

A1

A multi-ply laminated compressible printing blanket (10) for use in offset printing comprising in order, a first compressible fabric ply (12), a compressible elastomeric layer (24), at least two additional fabric plys (32, 34) situated above the compressible elastomeric layer, an elastomeric surface (44) and an elastomeric printing face (46) deposited by a solventless process and having a surface profile adapted for reducing dot gain while enhancing the releasability of the printed matter. At least the lowermost fabric ply (12) incorporates a protective coating to prevent wicking of inks, water and/or solvents through the blanket which might otherwise lead to swelling and delamination of the various plys. In addition, both the fabric plys and the compressible layer are at least partially coated with a matrix material (20) having dispersed therein a plurality of closed cells (26) formed, e.g., with the use of blowing agents or by adding thereto a plurality of expanded or expandable microspheres. Articles which may also be formed from the composite structure include gaskets, packing materials, flexible diaphragms or printing blankets.

BYERS JOSEPH L (US)
FLINT W TORIRAN (US)
KERR RICHARD C (US)

PCT/US1992/009791

May 27, 1993

November 13, 1992

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REEVES BROS INC (US)

B32B5/00; B41F13/08; B32B5/22; B32B5/26; B32B25/10; B41D7/04; B41N10/02; B41N10/04; (IPC1-7): B32B5/00

US3795568A	1974-03-05
US4015046A	1977-03-29
US4081318A	1978-03-28
GB2033395A	1980-05-21
US4044176A	1977-08-23
US5069958A	1991-12-03
US4770928A	1988-09-13
US4042743A	1977-08-16
US4303721A	1981-12-01
US5006400A	1991-04-09
JPH03158295A	1991-07-08
US4981750A	1991-01-01

See also references of EP 0612281A4

Stanton III, Lawrence T. (1155 Avenue of the Americas, New York, NY, US)

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