Method and apparatus for erasing the ink-carrying layer from the

Details Method and apparatus for erasing the ink-carrying layer from the Method and apparatus for erasing the ink-carrying layer from the

1995-08-30

1999-12-28

Yan, Ren

Printing

Cleaning attachments

B41F 3500

Patent

active

060066660

ABSTRACT:
A method and an apparatus for repeatedly erasing the ink-carrying layer of a printing form which is covered by an image and is suitable for offset printing. An erasing device directs a jet of pressurized medium at an angle of less than 90.degree. against the surface of the printing form on which the image is applied. A relative movement is carried out between the printing form and the erasing device, so that the image elements of the ink-carrying layer are removed over the entire surface of the printing form. The pressurized medium is preferably water.

REFERENCES:
patent: 2356771 (1944-08-01), McKinley
patent: 3355324 (1967-11-01), Catzen
patent: 3800702 (1974-04-01), Roberts
patent: 3801369 (1974-04-01), Gregory et al.
patent: 4686902 (1987-08-01), Allain et al.
patent: 5107764 (1992-04-01), Gasparrini
IBM Technical Disc. Bulletin vol. 25, No. 8 Jan. 1983 "High pressure cleaning system for disks" K. Chew et al.

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