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Slit type coating method for manufacturing patterned coating layer

A coating method and slit-type technology are applied in the field of slit-type coating to achieve the effects of simple use, controllable pattern and low cost

Inactive Publication Date: 2019-08-16
TRULY OPTO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, there is no method for fabricating patterned coating layers using slot die coating

Method used

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  • Slit type coating method for manufacturing patterned coating layer
  • Slit type coating method for manufacturing patterned coating layer

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with examples, which are only preferred implementations of the present invention, and are not limitations of the present invention.

[0021] A kind of slit type coating method of manufacturing patterned coating layer, comprises the steps:

[0022] S1. Provide substrate;

[0023] In the present invention, the type of substrate is not specifically limited, and may be various substrates that need to be coated.

[0024] S2. Provide a slit coating head, the slit coating head includes an upper mold, a lower mold, and a gasket sandwiched between the upper mold and the lower mold, the gasket has a pattern forming portion, It is formed with several slit channels through which the coating liquid passes;

[0025] The present invention does not specifically limit the number of slit channels, it is set according to the shape of the required pattern, preferably, the number of the slit channels is 2-10, more pref...

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Abstract

The invention discloses a slit type coating method for manufacturing a patterned coating layer. The method comprises the following steps: S1, supplying a base material; S2, supplying a silt coating head, wherein the silt coating head comprises an upper die, a lower die, and a spacer which is clamped between the upper die and the lower die; the spacer is provided with a pattern forming part, and aplurality of slit channels through which coating liquid passes are formed in the pattern forming part; and S3, extruding the coating liquid from the slit channels; and controlling the slit coating head and the base material to oppositely move so as to form the patterned coating layer on the surface of the base material. According to the method, the structure of a traditional spacer is changed; thespacer is provided with the pattern forming part, and the plurality of slit channels through which the coating liquid passes are formed in the pattern forming part, so that the coating liquid can pass through the plurality slit channels to form the patterned coating layer on the base material during coating.

Description

technical field [0001] The invention relates to the technical field of slit coating, in particular to a slit coating method for manufacturing a patterned coating layer. Background technique [0002] Slot coating is a high-precision coating method, which is not only used in traditional industries: such as tapes, film negatives, functional diaphragms, packaging films, wall wallpapers, but also in high value-added electronic industries: such as printed circuits plate, capacitive film, optical film, hard surface coating, display substrate photoresist coating and other processes. Recently, it has been used in the rapidly developing renewable energy industry: such as in the preparation process of copper indium gallium selenium thin film solar cells, polymer solar cells, lithium batteries, etc. [0003] The working principle of slot coating is: under the action of pressure, the coating liquid is extruded from the gap of the coating head and transferred to the substrate. At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/32B05D5/00
CPCB05D1/32B05D5/00
Inventor 李思拥张杰曾一鑫
Owner TRULY OPTO ELECTRONICS
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