Flexographic printer

Details Flexographic printer Flexographic printer

1996-04-26

1997-09-30

Yan, Ren

Printing

Cleaning attachments

101349, B41F 3500

Patent

active

056716761

ABSTRACT:
A flexographic printer in which ink supplied into a nip portion of inking rolls. The inking rolls include a rubber roll and an anilox roll. An inking roll cover is provided around the inking rolls. Clean air is directed into the inking roll cover through a filter, such as by a fan which blows air through an air vent into the inking roll cover so as to form a slightly higher static pressure within the inking roll cover than in the peripheral area. As a result, air is ejected to the outside of the inking roll cover from a gap between the inking roll cover and the printing cylinder. A dynamic pressure caused by the air prevents paper dust, paper scraps or other scattering dust, etc., from coming within the inking roll cover, thereby preventing such from sticking on the outer circumferential face of the rubber roll or the anilox roll, or from mixing with the ink supplied into the nip portion of the rubber roll and the anilox roll.

REFERENCES:
patent: 5259553 (1993-11-01), Shyu
patent: 5299495 (1994-04-01), Schoeps

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