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Liquid resin filtering process and filter

A liquid resin and filtration device technology, applied in the direction of filtration separation, separation methods, chemical instruments and methods, etc., can solve the problems of difficulty in filtration

Inactive Publication Date: 2009-04-15
深圳清溢光电股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, the liquid resin material has a viscosity of 30,000 CPS (centibek, viscosity unit) at room temperature, making it very difficult to filter

Method used

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  • Liquid resin filtering process and filter
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Embodiment Construction

[0012] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0013] The liquid resin filtering method of the present invention is a method for filtering liquid photosensitive resin, which uses heating to reduce the viscosity of the liquid resin, and uses a filter device to filter the liquid resin under pressure. Take unsaturated polybutadiene resin as an example, please refer to figure 1 , is a line graph of the relationship between the viscosity of the liquid resin and the temperature. It can be seen from the figure that the viscosity of the liquid resin material can reach 30,000 CPS at room temperature, but when the temper...

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Abstract

The invention discloses a method and a device for filtering a liquid resin. The method for filtering the liquid resin is a method for filtering a liquid photosensitive resin, and the method comprises the steps of reducing viscosity of the liquid resin by a heating method, and filtering the liquid resin by a filtering device under the condition of pressure; and the device for filtering the liquid resin comprises a pressure container for receiving the liquid resin, a temperature adjusting system connected with the pressure container, and a filter connected with the pressure container. The method for filtering the liquid resin adopts the heating method and a pressurizing method so as to reduce the viscosity of the liquid remarkably and promote filtering; and the device for filtering the liquid resin has a simple structure, so as to filter the liquid resin effectively and reduce rejection rate of products greatly.

Description

technical field [0001] The invention relates to a method and a device for filtering liquid photosensitive resin. Background technique [0002] Liquid photosensitive resin letterpress (hereinafter referred to as liquid plate) is mainly used in the PI printing (PI Coating) process of LCD (Liquid Crystal Display) manufacturers' medium and high-end products STN (Super Twisted Nematic) and color-STN. The main component of the liquid resin raw material used is unsaturated polybutadiene resin (Unsaturated Polybutadiene Resin). The process method is to coat the resin on a special exposure equipment, and first cure and shape it after selective exposure, and then wash the plate. , drying, light treatment, post-exposure and other processes determine the final size and performance of the product. [0003] However, due to the limitation of production conditions, it is inevitable that fibers and impurities will be mixed in the liquid resin material, and the liquid plate has high requirem...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D37/00B29B13/10
Inventor 贾伟喜
Owner 深圳清溢光电股份有限公司