Title:
INKJET HEAD AND IMAGE FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/215851
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: an inkjet head which is provided with a nozzle plate that exhibits excellent liquid repellency and static electricity elimination performance during ink ejection, while preventing adhesion of ink droplets to the nozzle surface and achieving excellent ejection stability and excellent adhesion between the constituent layers; and an image forming method which uses this inkjet head and enables the achievement of a high-quality inkjet recorded image. An inkjet head according to the present invention is provided with a nozzle plate which comprises: a substrate having a nozzle hole; and a liquid repellent layer that is arranged on the outermost surface on the ink ejection surface side of the substrate. This inkjet head is characterized in that: the nozzle plate preferably comprises a conductive layer between the substrate and the liquid repellent layer; and the sheet resistivity of the conductive layer is 2/3 or less the sheet resistivity of the liquid repellent layer, or alternatively, the composite sheet resistivity of all constituent layers that are formed on the ink ejection surface side of the substrate, said layers including the conductive layer and the liquid repellent layer, is 5.0 × 1014 Ω/sq. or less.
Inventors:
SUZUKI AYAKO (JP)
SHIMOMURA AKIHISA (JP)
YAMADA AKIHISA (JP)
SHIMOMURA AKIHISA (JP)
YAMADA AKIHISA (JP)
Application Number:
PCT/JP2018/017977
Publication Date:
November 14, 2019
Filing Date:
May 09, 2018
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
B41J2/14
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Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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