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Inkjet head and inkjet printing device

A technology of inkjet head and nozzle, which is applied in printing and other directions, can solve the problems that are difficult to design considering the chemical resistance of inkjet printing devices, and achieve the effects of inhibiting corrosion, expanding the viscosity range, and improving responsiveness

Active Publication Date: 2020-10-16
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the characteristics of fine patterns formed in electronic equipment and optical equipment are strictly required. When the ink is liquefied, it may be difficult to design an ink composition that takes into account the chemical resistance of the inkjet printing device and the discharge characteristics of ink droplets.

Method used

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  • Inkjet head and inkjet printing device
  • Inkjet head and inkjet printing device
  • Inkjet head and inkjet printing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0035] figure 1 Embodiment 1 of this application is shown.

[0036]

[0037] figure 1 It is a cross-sectional view of the inkjet head 100 of the present invention (only the central portion and the end portion are shown). The inkjet head 100 of the present invention is at least composed of a plurality of nozzles 2 on the nozzle plate 1, a flow path forming substrate 4 that communicates with the nozzles 2 and is divided into a pressure chamber 3 by a partition wall, and a pressure chamber that is arranged on the flow path forming substrate 4 The driving part 6 of the piezoelectric element 5 in the area corresponding to 3, the column part 7 of the piezoelectric element 5 provided in the area corresponding to the partition wall of the flow path forming substrate 4, and the column part 7 of the piezoelectric element 5 provided in the area separating the pressure chamber 3 and the piezoelectric element 5 The diaphragm 8 at the position and the casing (not shown) which holds the ...

Embodiment approach 2

[0061] figure 2 It is a cross-sectional view (only a central part is shown) for explaining Embodiment 2 of the inkjet head 100 of the present invention. also, image 3 From figure 2 Below the paper only observe figure 2 Diagram of the diaphragm 8.

[0062] figure 2 as well as image 3 The separator 8 is composed of a resin layer 80 and a metal layer 81 . The resin layer 80 is bonded to the piezoelectric element 5 via the adhesive layer 9 . Furthermore, in the metal layer 81 , the driving shoe tooth portions 81 a arranged at positions corresponding to the driving portion 6 and the shoe tooth portions 81 b arranged at positions corresponding to the pillar portions 7 are alternately arranged. These points are different from Embodiment 1. In addition, the other constituent elements are the same as those of the first embodiment.

[0063] Since the drive shoe tooth portion 81a and the post shoe tooth portion 81b are respectively formed at positions corresponding to the ...

Embodiment approach 3

[0070] Figure 4A It is a cross-sectional view (only a central part is shown) for explaining Embodiment 3 of the inkjet head 100 of the present invention. Compared with Embodiment 2 of the inkjet head 100 of the present invention image 3 Compared with the driving shoe tooth portion 81a and the stud tooth portion 81b formed on the metal layer 81, one end portion of the driving shoe tooth portion 81a is different from the terminal portion 81c, and the other structural elements are different from those of the embodiment. 2 is the same.

[0071] Here, the terminal portion 81c refers to a closed portion. The terminal portion 81c is closed on the metal layer 81 .

[0072] By setting one end of the driving shoe tooth part 81a as a terminal part, the free end parts 82 located on both sides of the driving shoe tooth part 81a are connected, and the distance between the post shoe tooth parts 81b of this part becomes longer, so the The secondary moments of the sections are reduced. ...

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Abstract

The invention provides an ink jet head and an ink jet printing apparatus, which can form patterns of electronic equipment and optical equipment at low cost, and particularly can form patterns by usinga conductive ink. The ink jet head is formed by laminating a nozzle plate having a plurality of nozzles, a flow path forming substrate, a diaphragm, and a piezoelectric element, wherein the diaphragmis of a laminated structure; the outermost layer closest to the flow path forming substrate in the laminated structure is composed of a resin, and one of the layers other than the outermost layer iscomposed of a metal.

Description

technical field [0001] The present invention relates to an inkjet head and an inkjet printing device. Background technique [0002] In the manufacturing process of electronic devices and optical devices, a step of forming a fine pattern on a substrate is often used. As a method of forming a fine pattern, although it depends on a desired pattern size, for example, in the case of about 10 to several tens of microns, there is a method of using photolithography such as etching or lift-off. However, the method using photolithography has problems in that an expensive photomask is required, material efficiency, and chemical resistance of the base material. [0003] Therefore, as a method of forming a fine pattern at low cost, a printing method in which a material ink of a desired pattern is liquefied and printed on a substrate, particularly an inkjet method that does not require a printing plate, has attracted attention. [0004] Patent Document 1 can be cited as a conventional e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J2/01
Inventor 入江一伸吉田英博
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD