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Title:
INK JET HEAD AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP3485514
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent defective assembling due to incorrect dimensions by performing acid/peroxide treatment before an ink chamber is made of a plastic material and then performing alkaline treatment when the surface of the plastic material is treated.
SOLUTION: The ink jet head 10 comprises a substrate 1 composed of a plastic material, e.g. acryl resin, epoxy resin, polyethylene, polypropylene or polyester, a cover 5, and the housing of a head. When the plastic material among the members constituting the ink chamber 9 of a ink jet head 10 is subjected to surface treatment in order to introduce a polar group, surface of that material is subjected to acid/peroxide treatment before the ink chamber 9 is made of the plastic material and then subjected to alkaline treatment with a 1-20 wt.% of sodium hydroxide solution. According to the method, defective assembling due to incorrect dimensions can be prevented when the head 10 is assembled.


Inventors:
Kozo Miyoshi
Ayako Kazama
Keisuke Kikawa
Application Number:
JP2000024335A
Publication Date:
January 13, 2004
Filing Date:
September 20, 1996
Export Citation:
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Assignee:
Citizen Watch Co., Ltd.
International Classes:
B41J2/16; B41J2/045; B41J2/055; (IPC1-7): B41J2/16; B41J2/045; B41J2/055
Domestic Patent References:
JP61141565A
JP5169667A
JP7178917A
JP7137260A
JP7206600A
JP585894A
JP263840A
JP7266553A
JP1016241A
JP1044443A
JP939252A
JP8318628A
Other References:
【文献】国際公開97/037853(WO,A1)
Attorney, Agent or Firm:
Takashi Ishida (2 outside)