Method for modifying flaw on surface of electronic-grade glass fiber cloth

A technology of glass fiber cloth and electronic grade, which is applied in the field of surface defect modification of electronic grade glass fiber cloth, which can solve the problems of unable to meet the needs of downstream customers and abnormal surface defects, so as to reduce the abnormal flow direction of cloth surface defects and improve the flatness , the effect of avoiding damage

Inactive Publication Date: 2021-05-28
LINZHOU GUANGYUAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some abnormalities can be avoided during the weaving process of electronic cloth, but there will still be some abnormalities on the cloth surface that cannot be avoided, which requires direct surface modification on the cloth surface.
In the prior art, the method of modifying the abnormal surface defects of electronic grade glass fiber cloth generally has the problem that it cannot meet the needs of downstream customers.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for modifying flaw on surface of electronic-grade glass fiber cloth
  • Method for modifying flaw on surface of electronic-grade glass fiber cloth
  • Method for modifying flaw on surface of electronic-grade glass fiber cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] For 2116 fabric types (basis weight 104g) with abnormal weft breakage in electronic grade fiberglass fabrics, the staff will record the meter length of the defect detected by the CCD before inspection, and repair the defect according to the meter length detected by the CCD during the cloth inspection process. Find it, use a correction needle with a diameter of 0.5mm to pick off the left and right ends of the protruding weft yarn on the surface, and use the correction needle to pick out the protruding yarn, (Note: When using the correction needle, other yarns cannot be picked off , when the broken yarn is picked out, there should be no remaining yarn), after picking out the protruding yarn in the middle, use the correction needle to evenly dial the weft yarns adjacent to the weft yarn, and finally use the electronic grade glass fiber cloth 1 larger than the electronic grade fiberglass cloth to be modified 7628 cloth kinds of modified wiping cloth (basis weight 210g) with ...

Embodiment 2

[0035] For the abnormal item of electronic grade glass fiber cloth loose loop weft, the staff first records the meter length of the defect detected by CCD before inspection, and finds the wavy weft yarn on the surface of the electronic grade glass fiber cloth to be modified according to the defect meter length detected by CCD , and then use the combined force of the thumb and forefinger to pull out the wavy weft yarn. The occurrence rate of loose loop weft defects on the finished fabric surface to downstream customers is 2%.

Embodiment 3

[0037]For 1080 types of cloth (basis weight 48g) electronic grade glass fiber cloth with loose loops and weft abnormal items, the staff first records the meter length of the defect detected by the CCD before inspection, and finds the electronic grade glass to be modified according to the defect meter length detected by the CCD For the loose weft on the surface of the fiber cloth, use the correction scissors to cut off the protruding loose weft on the surface, and finally use a modified wiping cloth 2116 cloth type (basis weight 104g) Wipe the cloth surface of the modified electronic-grade glass fiber cloth to make it smooth, and the occurrence rate of loose loop weft defects on the cloth surface of the finished cloth to downstream customers is 1%.

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Abstract

The invention relates to the technical field of electronic-grade glass fiber cloth production, in particular to a method for modifying a flaw on the surface of electronic-grade glass fiber cloth. The method comprises the following steps of finding the flaw on the to-be-modified surface of the electronic-grade glass fiber cloth according to the length of the flaw detected by a CCD, modifying the flaw by using a correction needle and / or a correction shear, and finally wiping the modified surface of the electronic-grade glass fiber cloth to be flat by using modification wiping cloth, wherein the diameter of the correction needle ranges from 0.5 mm to 1.5 mm. According to the method for modifying the flaw on the surface of the electronic-grade glass fiber cloth, the diameter of the correction needle is small, the needle point is sharp, the flaw abnormities on the surface of the glass fiber cloth can be effectively modified, and the damage to the surface of the glass fiber cloth in the modifying process can be effectively avoided, so that the flaw modification method can effectively modify the flaw abnormities such as broken wefts, broken warps, warp dirt, loose loop wefts and the like on the surface of the glass fiber cloth, and greatly reduces the probability that the flaw abnormities on the surface of the finished electronic-grade glass fiber cloth flow to downstream customers.

Description

technical field [0001] The invention relates to the technical field of production of electronic-grade glass fiber cloth, in particular to a method for modifying surface defects of electronic-grade glass fiber cloth. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds. The advantages are good insulation, strong heat resistance, good corrosion resistance and high mechanical strength, but the disadvantages are brittleness and poor wear resistance. The glass fiber is often used as reinforcing material of composite material, electrical insulation and heat insulation materials, substrate and other national economy fields. [0003] Glass fiber cloth is a non-twisted roving plain weave fabric, which is an important base material for hand lay-up FRP. The strength of glass fiber cloth is mainly in the warp and weft directions of the fabric. For occasions that require high warp or weft strength, it can also b...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03J1/00
CPCD03J1/00
Inventor 元庆锋陶应龙代义飞
Owner LINZHOU GUANGYUAN NEW MATERIAL TECH
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