Method of mounting a removable printing sleeve on a core utilizi

Details Method of mounting a removable printing sleeve on a core utilizi Method of mounting a removable printing sleeve on a core utilizi

1981-12-02

1984-07-24

Massil, Jerome W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

291484D, 29447, 101375, 156165, 156229, 156268, 156285, 156294, 156322, 156423, 156344, 156584, 204 9, B21H 114, B41F 1310

Patent

active

044616635

ABSTRACT:
A gravure printing cylinder is formed by fitting a printing sleeve over a core roll via a layer of a hotmelt adhesive. A gravure printing surface with ink-retaining cells is formed on the printing sleeve either before or, preferably, after the mounting of the sleeve on the core roll. For assemblage of the printing cylinder the hotmelt is applied in the molten state to at least part of at least either of the opposed surfaces of the printing sleeve and the core roll. Then the printing sleeve is placed over the core roll, preferably while both sleeve and roll are being heated. The printing cylinder can be readily disassemblaged by remelting the hotmelt layer. Also disclosed herein is an apparatus for the assemblage and disassemblage of the printing cylinder, including a roll holder for holding the core roll in an upstanding attitude while the core roll is being heated by a heating medium circulating therethrough. As a hotmelt applicator removably mounted on a carriage travels down the upstanding core roll to coat same with a hotmelt adhesive, a sleeve mounting pusher removably mounted on another carriage pushes the printing sleeve down onto the adhesive-coated core roll. A sleeve dismounting pusher is to be mounted on either of the carriages for pushing up the printing sleeve off the core roll.

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