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Cover film sticking test method and press machine used

A testing method and covering film technology, applied in the direction of using mechanical devices, chemical instruments and methods, lamination, etc., can solve the problem of inability to test accurately and effectively, and achieve the effect of uniform and constant pressure

Active Publication Date: 2015-12-16
SONGYANG ELECTRONICS MATERIAL KUSN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method cannot use data to quantify the test results. The stickiness of the sticky board can only be judged by the experience of the tester, and it cannot be tested accurately and effectively.

Method used

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  • Cover film sticking test method and press machine used

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Embodiment: a kind of covering film sticking plate test method, carry out according to the following steps:

[0025] ①. Test the amount of glue overflow of the cover film, and formulate the pressing parameters according to the amount of glue overflow. 40-80%.

[0026] ②. Cut the covering film to a width of 5cm and a length of 25 to 40cm, then tear off the release paper and paste the covering film. It must be flat and free of air bubbles when pasting, and then use a pressing machine to cover the pasted The film is cold pressed and the pressure is controlled at 0.2kgf / cm 2 to 0.6kgf / cm 2 , The pressing time is 5 seconds. ;

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PUM

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Abstract

The invention discloses a method of a plate-sticking test of a coverlay and a lamination machine used therefor. The uniform and constant pressure on the covelay is realized by using flatness and stress uniformity of the lamination machine, so that traditional ways of laminating the coverlay by using hand feel are changed. A separating tension of the coverlay is tested by using a universal tensile machine, and strength of the coverlay adhesiveness is shown by accurate values, so that traditional ways of relying on experience and feelings of testers are changed. Therefore, the method, by utilizing general testing and laboratory instruments, can simply and accurately test technical indicators traditionally difficult to access, and effectively quantify technical indicators previously unavailable to digitization.

Description

technical field [0001] The invention relates to a testing method and an instrument used, in particular to a testing method for testing the adhesiveness of a covering film and a pressing machine used. Background technique [0002] In the production process of cover film (CVL, Coverlay), due to the different curing process, the epoxy colloid will produce a certain initial tack after low-temperature baking, resulting in problems such as sticking to the board and inability to align the cover film during actual use. , affecting the production efficiency and yield of the unit used. [0003] At present, there is no simple and effective method to quantitatively test the viscosity of the cover film adhesive in the production process. The traditional method is to tear off the release paper from the covering film and press it with your hands, and then feel the force of tearing off. This test method cannot use data to quantify the test results. The stickiness of the sticky board can o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04B32B37/10B32B41/00
Inventor 徐玮鸿陈晓强周文贤
Owner SONGYANG ELECTRONICS MATERIAL KUSN
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