Method for producing organic insulating coating and ink-jet printhead produced according to the method

An inkjet print head, organic coating technology, applied in organic insulators, coatings, devices for coating liquid on surfaces, etc., can solve problems such as increasing production costs

Inactive Publication Date: 2004-03-17
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the method, vacuum equipment is required for the plasma treatment, thereby increasing the production cost

Method used

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  • Method for producing organic insulating coating and ink-jet printhead produced according to the method
  • Method for producing organic insulating coating and ink-jet printhead produced according to the method
  • Method for producing organic insulating coating and ink-jet printhead produced according to the method

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Embodiment Construction

[0042] FIG. 1 is a schematic view showing a configuration example of an organic insulating coating formed on a substrate according to a method for producing an organic insulating coating of the present invention. The organic insulating coating 200 formed on the surface of the substrate 203 is composed of a first organic coating 201 and a second organic coating 202, and both the first organic coating 201 and the second organic coating 202 are poly Para-xylylene-based organic coatings (hereinafter referred to as parylene coatings).

[0043] 2A-2C are schematic diagrams illustrating a method of preparing the organic insulating coating. When forming the organic insulating coating 200 on the substrate 203 , first, as shown in FIG. 2A , a 2 μm thick parylene coating 201 is formed on the substrate 203 .

[0044] Next, as shown in FIG. 2B , the substrate 203 with the first parylene coating layer 201 formed thereon is placed in a heating device 205, such as an oven, and heated at 100°...

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Abstract

An organic insulating coating formed on a substrate is composed of two layers of a first parylene coating and a second parylene coating. Heat treatment is performed to at least the first parylene coating after being formed, at a temperature below 125 DEG C. for two hours. Then the second parylene coating is formed on the first parylene coating. Occurrence of pinholes is thus prevented at least in one of the two layers of the organic coatings, with the result that insulating properties of the coatings are improved.

Description

technical field [0001] The present invention relates to a method for preparing an organic insulating coating (organic insulating coating), such as a protective coating for electrodes in an ink chamber of an ink-jet printhead, and to an ink-jet printhead prepared according to said method. ink print head. Background technique [0002] Non-impact printers suitable for color and multicolor printing, such as inkjet printers, have rapidly gained popularity instead of impact printers. In particular, drop-on-demand printers, which eject ink only when needed to print on the media, are popular because of their increased printing efficiency and lower production and running costs . Many instant drop printers today use either the Kyser method using piezoelectric elements or the thermal inkjet method. [0003] However, in the Kyser type printer, it is difficult to miniaturize the print head and increase its nozzle density. In the thermal inkjet printer, although a high nozzle density ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/02B05D5/12B41J2/045B41J2/055B41J2/16
CPCB41J2/1623B41J2/1632B41J2/1609B41J2/1606B41J2/164
Inventor 出口治彦垣胁成光的场宏次中村博一松下真规田中知省
Owner SHARP KK
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