Cylindrical covering fabric for a damping form roller of an...

B - Operations – Transporting – 41 – F

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B41F 7/24 (2006.01) B41N 7/04 (2006.01) D03D 15/00 (2006.01) D04B 1/00 (2006.01)

Patent

CA 1188923

CYLINDRICAL COVERING FABRIC FOR A DAMPING FORM ROLLER OF AN OFFSET PRINTING MACHINE ABSTRACT OF THE DISCLOSURE: A cylindrical covering fabric for a damping form roller of an offset printing machine is manufactured by weaving, as ground yarn, yarns composed of polyurethane fibers drafted to at least twice of free length, water-soluble fibers and water-insoluble fibers coiling around the above-mentioned polyurethane fiber and water-soluble fiber and, as pile yarn, hydrophilic fibers. The covering fabric is firmly mounted on a damping form roller by immersing the roller covered by the fabric in water to remove the water-soluble fibers from the ground yarns, followed by shrinking of the polyurethane fibers. - 1 -

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