Photocopying – Contact printing – Frames
Patent
1987-04-27
1988-08-16
Wintercorn, Richard A.
Photocopying
Contact printing
Frames
101 12, 355132, G03B 2728
Patent
active
047647957
ABSTRACT:
The invention sets forth an exceedingly accurate, however simple system or process for preparation of an Offset Printing-plate for consistant aligned matrices, while eliminating costly time consuming procedures and expensive apparatus of alignment; whereby: (a) the 2-dimensional graphic-art article is affixed to a standard Photo-table adjacent to a simple reference-line, as a preliminary registration-reference means; (b) the resulting repro-film is then provided with a special `anti-stretch`/backing-strip at one end (if it is of the inexpensive paper type place), and then placed upon a special zero-registration platen equipped with a special `floating Sight-wire` is to be visually aligned in superimposition over the said Ref.-line which was photographed with the said graphic-artwork, and a plurality of standard press/indexer-holes are simultaneously punched into the said backing-striped end area, thereby at once establishing the critical prepress-registration; (c) which is then transferred directly to the standard plurality of Offset-press Indexer-pins, for subsequent printing procedures. Hence, a cost-effective system, enabling paper-resin type plates to substantially equal the more costly metal-plates in reproductive quality for at least 10,000-runs, plus the virtural eliminaton of `plate-skew & creep` enables printers to attain exceptionally tight-registration demands of 2 & 3-color runs without inordinate attention to alignment, since hairline accuracy is locked-in by this process; plus, handy expedient format layout/work-sheet are provided, which further enhance the ability of a relative novice-printer operator to achieve reproduction results appearing entirely professional.
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von Heck Robert
Wintercorn Richard A.
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