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Droplet jetting applicator and method for manufacturing coated body

A droplet spraying and coating device technology, applied in printing and other directions, can solve problems such as bad spraying, bubble inhalation, ink seepage, etc., and achieve the effect of suppressing bad spraying

Inactive Publication Date: 2008-10-01
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, ink seeps out from the nozzle surface or air bubbles are sucked into the droplet ejection head, resulting in ejection failures such as non-ejection.

Method used

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  • Droplet jetting applicator and method for manufacturing coated body
  • Droplet jetting applicator and method for manufacturing coated body
  • Droplet jetting applicator and method for manufacturing coated body

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0022] Below, refer to Figure 1 to Figure 3 The first embodiment of the present invention will be described.

[0023] Such as figure 1 As shown, the droplet ejection application device 1 according to the first embodiment of the present invention includes an ink application cartridge 2 and an ink supply cartridge 3 . The ink application cartridge 2 applies ink, which is a liquid, onto the substrate K of the object to be coated as droplets. The ink supply cartridge 3 supplies ink to the ink application cartridge 2 . The ink application cartridge 2 and the ink supply cartridge 3 are fixed adjacently on the upper surface of the stand 4 .

[0024] Inside the ink application cartridge 2, there are provided a substrate moving mechanism 5 that holds the substrate K and moves it in the X-axis direction and the Y-axis direction, and has a droplet ejection head that ejects droplets to the substrate K on the substrate moving mechanism 5. A droplet ejection head unit 6 of H, a unit mo...

no. 2 Embodiment approach

[0072] Below, refer to Figure 4 to Figure 6 , and the second embodiment of the present invention will be described.

[0073] The second embodiment of the present invention is a modified example of the first embodiment. Therefore, only the parts that are different from the first embodiment, that is, the parts related to the ink circulation and the ink circulation operation of the droplet ejection coating apparatus 1 will be described. In the second embodiment, descriptions of the same parts as those in the first embodiment are omitted.

[0074] In the droplet spray coating device 1 according to the second embodiment of the present invention, as Figure 4 As shown, in the liquid supply channel 31, a liquid supply part P1, a fourth valve V4, and a first buffer tank 19 (first buffer liquid storage part) are provided in this order from the liquid storage part 21 side. Therefore, the liquid supply flow path 31 includes the first buffer tank 19, includes a flow path 31c communica...

no. 3 Embodiment approach

[0100] Below, refer to Figure 7 A third embodiment of the present invention will be described.

[0101] The third embodiment of the present invention is a modified example of the first embodiment. Therefore, only the discharge mechanism 51 which is a part different from the first embodiment will be described. In this third embodiment, the description of the same parts as those in the first embodiment is omitted.

[0102] In the droplet spray coating device 1 according to the third embodiment of the present invention, as Figure 7 As shown, a discharge mechanism 5 is provided in the ink application cartridge 2 . The discharge mechanism 5 discharges the trial coating substrate (coating object for trial coating) Ka to the outside on which the liquid droplet jetting head H has trial coated (test jetted) the liquid droplets. The sample coating substrate Ka ejected by the ejection mechanism 51 is received by the sample extraction cassette 52 for extraction.

[0103]The dischar...

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Abstract

Provided is a droplet jetting applicator including: a droplet jetting head configured to jet liquid supplied from a liquid storage unit; a liquid supply unit configured to supply the liquid from the liquid storage unit to the droplet jetting head through a liquid supply channel; a first buffer liquid reservoir positioned closer to the droplet jetting head than the liquid supply unit in the liquid supply channel, and formed so that the inflow liquid drops thereinto; a liquid return unit configured to return the liquid from the droplet jetting head to one of the liquid storage unit and the first buffer liquid reservoir through a liquid return channel; and a second buffer liquid reservoir positioned closer to the droplet jetting head than the liquid return unit in the liquid return channel, and formed so that the inflow liquid drops thereinto.

Description

technical field [0001] The present invention relates to a droplet spray coating device for spraying and coating a plurality of liquid droplets onto an object to be coated, and to a method for manufacturing a coated object. Background technique [0002] In addition to printing image information, droplet spray coating devices are also used in various planar types such as liquid crystal display devices, organic EL (Electro Luminescence) display devices, electron emission display devices, plasma display devices, and electrophoretic display devices. The manufacturing process of the display device. [0003] This droplet spraying coating device is equipped with the liquid droplet ejection head (for example inkjet head) that the liquid such as ink is sprayed from several nozzles respectively to the coating object such as substrate as liquid droplet, uses this liquid ejection head to use A number of liquid droplets fall on the object to be coated to form a predetermined coating patt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175B41J2/18
Inventor 木名濑淳石原治彦大石恭史
Owner KK TOSHIBA
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