Screen cleaning apparatus and screen cleaning method

Details Screen cleaning apparatus and screen cleaning method Screen cleaning apparatus and screen cleaning method

1996-05-20

1997-12-30

Burr, Edgar S.

Printing

Antismut device

Anti-offset material application

101425, B41F 3500

Patent

active

057018219

ABSTRACT:
An apparatus for cleaning a screen of a screen printing machine, including an ultrasonic vibrator which vibrates at an ultrasonic frequency, a cleaning-sheet supporting device which supports a portion or an entirety of a porous cleaning sheet between the screen and the vibrator, such that the portion or entirety of the cleaning sheet is contactable with the screen and the vibrator, and a washing-agent supplying device which supplies a washing agent to the cleaning sheet. An apparatus for cleaning a contact surface of a screen of a screen printing machine, the contact surface contacting a substrate when the screen is used to effect a screen printing on the substrate, the apparatus including a feeding device which supports a wiping sheet in a form of a web having a constant width, such that a portion of the web is contactable with the contact surface of the screen, and which feeds the web in a longitudinal direction thereof, a pressing device which presses the portion of the web against a portion of the contact surface of the screen, and a moving device which moves one or both of the screen and a unit including the pressing device, relative to each other, in a direction parallel to the contact surface of the screen.

REFERENCES:
patent: 4111546 (1978-09-01), Maret
patent: 4620256 (1986-10-01), Rubey
patent: 5390597 (1995-02-01), Hashimoto et al.
patent: 5485781 (1996-01-01), Rovarls

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