Deformable pads for rotary pad printing, apparatus and method

Details Deformable pads for rotary pad printing, apparatus and method Deformable pads for rotary pad printing, apparatus and method

2011-01-11

2011-01-11

Yan, Ren (Department: 2854)

Printing

Special article machines

Bed and platen

C101S042000, C101S044000, C101S033000, C101S035000

Reexamination Certificate

active

07866260

ABSTRACT:
A rotary pad for pad printing comprises a cylinder (100′) or a belt (1105). The pad can be either flat or crowned in its relaxed condition. An ink applicator (405, etc.) applies an ink image (701) to the pad for subsequent transfer to a receiving object (425, etc.). If not initially flat, the pad can be flattened during application of the ink image, then forced to bulge for transfer to a receiving object. The pad can be flattened or caused to bulge by rollers (400, etc.) or by vacuum or pneumatic pressure. In one embodiment, an ink image is temporarily applied to the outer surface (510) of a flat cylindrical pad, then as the pad rotates, the sides of the pad are squeezed by rollers (520, 525), forcing the pad to bulge during transfer of the ink image to a receiving object (600). In another embodiment, a crowned pad (100′) is flattened while accepting an ink image, then allowed to resume its original crowned shape for transfer to a receiving object (425).

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Author Unknown, “New PadJet™ Digital Pad Printing System”, Graphics Pro Magazine, Sep.-Oct. 2004.

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