Method and apparatus for registering a pre-printed web on a prin

Details Method and apparatus for registering a pre-printed web on a prin Method and apparatus for registering a pre-printed web on a prin

1999-01-13

2000-04-25

Asher, Kimberly

Printing

Processes

Plural impressions on single article

101485, 101220, 101225, 226 2, 226 27, B65H 2304, B65H 2314, B41F 512

Patent

active

06053107&

ABSTRACT:
A preprinted web having a plurality of first repeating images is reprinted with a plurality of second repeating images which are in register with the first images. A register mark is printed on the web for each of the first images. When the web is reprinted, the positions of the register marks are sensed and compared with the positions of the second images, and the unwind tension of the web is adjusted to maintain the relative positions substantially constant.

REFERENCES:
patent: 3949949 (1976-04-01), Thompson
patent: 4129238 (1978-12-01), Herd
patent: 4452140 (1984-06-01), Isherwood et al.
patent: 4485982 (1984-12-01), St. John et al.
patent: 5224640 (1993-07-01), Fokos et al.
patent: 5361960 (1994-11-01), Fokos et al.
patent: 5485386 (1996-01-01), Andreasson
patent: 5526107 (1996-06-01), Bronstein
patent: 5709331 (1998-01-01), Lam
patent: 5813587 (1998-09-01), Nordgren
1994, Paper Converting Machine Company, Product Printing Services Manual-1 page, QRFX411, Dancer Roll System.

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