Title:
METHOD AND DEVICE FOR SUPPLYING INK TO GRAVURE ROLL
Document Type and Number:
Japanese Patent JP2954753
Kind Code:
B2
Abstract:
PURPOSE: To sufficiently supply ink to constantly conduct a proper printing by a method wherein when ink is supplied to ink cells formed on the peripheral surface of a gravure roll, ink in an ink pan is supplied while a negative pressure is generated on the peripheral surface of the gravure roll.
CONSTITUTION: In an ink supply device 2 used in contact with a gravure roll 1, an ink pan 5 having a bottom wall 3, a side wall 4, and an opening at its top end in contact with the gravure roll 1 is provided. A pressure reducing chamber 6 is provided rearward of the ink pan 5 in the rotating direction of the gravure roll 1 across the aforesaid bottom wall 3 as a partition wall. Furthermore, the ink pan 5 is connected to an ink path 8 and the like, and the pressure reducing chamber 6 is connected to a pressure reducing path 9 and the like. With the rotation of the gravure roll 1, a negative pressure is made to act to an opening 7 at the top end of the pressure reducing chamber 6, whereby ink in the ink pan 5 is satisfactorily supplied to ink cells formed on the peripheral surface of the gravure roll 1. In this manner, a proper printing is constantly conducted. In addition, excess ink is removed by a scraping plate 10.
Inventors:
FUTASE KATSUNORI
Application Number:
JP19835891A
Publication Date:
September 27, 1999
Filing Date:
July 15, 1991
Export Citation:
Assignee:
TAISEI RAMITSUKU KK
International Classes:
B41F31/08; B41F9/10; (IPC1-7): B41F31/08; B41F9/10
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)
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