Title:
DOCTOR BLADE
Document Type and Number:
WIPO Patent Application WO/2007/018144
Kind Code:
A1
Abstract:
This invention provides a doctor blade for use in combination with a gravure printing roll,
which, even when applied to gravure printing using a water-based ink for printing
at the same speed as gravure printing using an oil-based ink, is less likely to
cause fogging of a plate, can bring gravure printing using a water-based ink to
a practical level, and can prolong the service life. The doctor blade comprises a
doctor blade body in which the front end part is a knife edge part. In such a state that
the knife edge part abuts against the gravure printing roll, the printing roll
is moved relatively to the doctor blade to fill gravure cells with an ink and to
scrape off excess ink. The doctor blade is characterized in that the doctor blade
body at least in its knife edge part is covered with a silicon dioxide film, and
the silicon dioxide film is formed using a perhydropolysilazane solution.
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Inventors:
SATO TSUTOMU (JP)
SHIGETA TATSUO (JP)
SHIGETA TATSUO (JP)
Application Number:
PCT/JP2006/315487
Publication Date:
February 15, 2007
Filing Date:
August 04, 2006
Export Citation:
Assignee:
THINK LABS KK (JP)
SATO TSUTOMU (JP)
SHIGETA TATSUO (JP)
SATO TSUTOMU (JP)
SHIGETA TATSUO (JP)
International Classes:
B41F9/10; B41M1/10; C23C18/12
Foreign References:
| JPS63246249A | 1988-10-13 | |||
| JP2000079775A | 2000-03-21 | |||
| JP2001089126A | 2001-04-03 |
Attorney, Agent or Firm:
ISHIHARA, Shoji (No. 302 Wakai Bldg., 7-8, Higashi-Ikebukuro 3-chom, Toshima-ku Tokyo, JP)
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