Intaglio engraving method and apparatus

Details Intaglio engraving method and apparatus Intaglio engraving method and apparatus

1995-01-23

1997-10-07

Le, N.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358489, 358296, 358298, H04N 121, H04N 104

Patent

active

056754205

ABSTRACT:
This invention relates to an engraving method and apparatus for engraving a cylinder for printing an intaglio pattern on a web of material. The engraver comprises a driver for rotatably driving the cylinder and a computer for controlling the operation of the engraver and for generating an intaglio engraving signal corresponding to the predetermined intaglio pattern. The engraver also comprises an engraving head comprising a stylus having a generally flat cutting edge or surface. The engraving head also is capable of engraving at response times of less than 200-300 microseconds, thereby enabling the engraving head to engrave the intaglio pattern on the cylinder during the rotation of the cylinder in response to the intaglio engraving signal. The apparatus and method also comprise a fine line boost routine for facilitating engraving fine areas or lines of the intaglio pattern. There is also provided apparatus and method for controlling ink flow in large engraved areas or intaglio trenches. The apparatus and method facilitate engraving intaglio grooves or trenches which may be generally rectangular in cross section, and which were engraved in response to a pulse-width modulated intaglio engraving signal generated by the computer.

REFERENCES:
patent: Re23914 (1954-12-01), Boyajean
patent: 2112010 (1938-03-01), Brimberg
patent: 2160951 (1939-06-01), Alice
patent: 2164209 (1939-06-01), Howey et al.
patent: 2441651 (1948-05-01), Thompson
patent: 2881246 (1959-04-01), Fairchild
patent: 2925464 (1960-02-01), Raible
patent: 3612753 (1971-10-01), Korman
patent: 3636251 (1972-01-01), Daly et al.
patent: 3652992 (1972-03-01), Koll
patent: 3694570 (1972-09-01), Kotov et al.
patent: 3769455 (1973-10-01), De Vos et al.
patent: 3770888 (1973-11-01), de Vos et al.
patent: 3784739 (1974-01-01), de Vos et al.
patent: 3876829 (1975-04-01), Schreiber
patent: 3904816 (1975-09-01), Taudt et al.
patent: 3956583 (1976-05-01), Pugsley
patent: 3964382 (1976-06-01), Baar et al.
patent: 4003311 (1977-01-01), Bardin
patent: 4052739 (1977-10-01), Wada et al.
patent: 4174527 (1979-11-01), Schaefer
patent: 4287537 (1981-09-01), Pfau et al.
patent: 4301583 (1981-11-01), Poole
patent: 4357633 (1982-11-01), Buechler
patent: 4394693 (1983-07-01), Shirley
patent: 4450486 (1984-05-01), Buechler
patent: 4451856 (1984-05-01), Buechler
patent: 4484232 (1984-11-01), Gast
patent: 4500929 (1985-02-01), Beuchler
patent: 4503468 (1985-03-01), Serinken
patent: 4612584 (1986-09-01), George et al.
patent: 4688101 (1987-08-01), Doelves et al.
patent: 4805312 (1989-02-01), Datwyler
patent: 4830552 (1989-05-01), Ryf
patent: 5229861 (1993-07-01), Nozaka et al.
patent: 5293426 (1994-03-01), Wauch et al.
patent: 5424845 (1995-06-01), Holowko et al.
patent: 5438422 (1995-08-01), Holowko et al.
patent: 5481366 (1996-01-01), Sakamoto
The Gravure Engraving Manual Technical Education Library of the Gravure Association of America, Inc. (1987).
Digital Image Processing, Pratt., 2nd edition, John Wiley and Sons, 1991, Section 14.5.

Affiliated with

Also associated with

Rating

Intaglio engraving method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Intaglio engraving method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intaglio engraving method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2361625