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Ink application device, control device for ink application device, and ink application method

A technology of coating device and control device, applied in printing device, printing and other directions, can solve the problems of unable to exert sufficient modification effect, unable to form ink film, etc.

Active Publication Date: 2021-09-03
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Even if the surface of the substrate is modified, sometimes the ink film with the desired shape cannot be formed due to insufficient modification effect when the substrate is coated with ink Case

Method used

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  • Ink application device, control device for ink application device, and ink application method
  • Ink application device, control device for ink application device, and ink application method
  • Ink application device, control device for ink application device, and ink application method

Examples

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Embodiment Construction

[0027] refer to Figure 1 ~ Figure 4 , an ink application device based on an embodiment will be described.

[0028] figure 1 It is a schematic diagram of the ink application apparatus based on this Example. The substrate 60 is placed on the rollers of the first conveying device 51 composed of a plurality of rollers, and conveyed from the storage position to the intermediate position. The surface modifying device 10 is disposed above the first conveying device 51 . The surface modifying device 10 includes, for example, an ultraviolet lamp that irradiates ultraviolet rays to the surface of the substrate 60 conveyed by the first conveying device 51 . The ultraviolet rays have a long elongated cross-section in the direction perpendicular to the conveying direction of the first conveying device 51 , and can irradiate the entire surface of the substrate 60 being conveyed with ultraviolet rays.

[0029] The second transport device 52 transports the substrate 60 transported to the...

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Abstract

The invention provides an ink coating device which can inhibit poor ink coating caused by the fact that a sufficient modification effect of a surface cannot be exerted. The surface modification device changes the lyophilicity of the surface of the substrate. The inkjet head converts ink into droplets and discharges the ink toward the substrate. The control device controls the surface modification device and the ink jet head. And a control device monitors each substrate whose surface is modified by the surface modification device for the elapsed time and stops ejection of ink from the inkjet head for the substrate whose elapsed time after surface modification exceeds an allowable upper limit value.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2020-035024 filed on March 2, 2020. The entire content of this Japanese application is incorporated in this specification by reference. technical field [0002] The invention relates to an ink coating device, a control device of the ink coating device and an ink coating method. Background technique [0003] As a method of forming various films on a substrate, an inkjet method is known (for example, Patent Document 1). In the method disclosed in Patent Document 1, an alignment material for a liquid crystal display device is applied on a substrate using an inkjet head. As an alignment material, organic polymer materials such as polyimide resin are used, for example. In the method disclosed in Patent Document 1, before applying an alignment material to the substrate, the substrate is irradiated with ultraviolet light to modify the surface of the substrate. By this ultraviolet irradiation, the su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01
CPCB41J2/01B41J11/0015B41J29/393B41J2/04
Inventor 镒广诚
Owner SUMITOMO HEAVY IND LTD
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