Stencil printing device having an ink mixing unit

Details Stencil printing device having an ink mixing unit Stencil printing device having an ink mixing unit

1994-08-22

1995-08-08

Burr, Edgar S.

Printing

Stenciling

Rotary machines

101119, 101120, 101123, 101114, B41F 1540, B41L 1304, B41L 1318

Patent

active

054389216

ABSTRACT:
The stencil printing device of the present invention comprises a mixing unit for receiving the first liquid from the first liquid storage container and the second liquid from the second liquid storage container, and producing printing ink by mixing the two liquids, a printing ink supply passage for conducting the printing ink produced by the mixing unit to an ink squeegee unit of a printing drum, ink amount sensor for detecting the amount of the printing ink in the ink squeegee unit, and ink supply control unit for controlling the amount of the printing ink that is supplied from the mixing unit to the ink squeegee unit according to the amount of printing ink detected by the ink amount sensor. Thus, a relatively large number of prints can be made with each bottle of printing ink so that the frequency of replacing the ink bottle may be reduced. Additionally, stable stencil printing can be carried out by receiving printing ink having prescribed consistency and other desirable properties irrespective of the age of the printing ink or the surrounding temperature without requiring any human intervention.

REFERENCES:
patent: 3779161 (1973-12-01), Tatebe
patent: 3780651 (1973-12-01), Black et al.
patent: 3785285 (1974-01-01), Chambon
patent: 4140056 (1979-02-01), Mabrouk
patent: 4385558 (1983-05-01), Takahashi et al.

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