阅读说明：本技术 一种电子级玻璃纤维布布面瑕疵修饰的方法 (Method for modifying cloth cover flaws of electronic-grade glass fiber cloth ) 是由 元庆锋 陶应龙 代义飞 于 2020-12-31 设计创作，主要内容包括：本发明涉及电子级玻璃纤维布生产技术领域,尤其是涉及一种电子级玻璃纤维布布面瑕疵修饰的方法,根据CCD检测到的瑕疵米长找到待修饰电子级玻璃纤维布布面的瑕疵修,使用修正针和/或修正剪对所述瑕疵修进行修饰,最后使用修饰擦布把修饰后的电子级玻璃纤维布布面擦拭平整；其中,所述修正针的直径为0.5-1.5mm。本发明的电子级玻璃纤维布布面瑕疵修饰的方法,修正针直径小、针尖锋利,不仅可以对玻纤布表面的瑕疵异常进行有效修饰,而且可有效避免修饰过程中对玻纤布表面的损伤,因此,本发明的瑕疵修饰方法可对玻纤布表面的纬破、经破、经污和松圈纬等瑕疵异常进行有效修饰,大大减少了电子级玻璃纤维布成品布的布面瑕疵异常流向下游客户的发生比例。(The invention relates to the technical field of electronic-grade glass fiber cloth production, in particular to a method for modifying cloth cover flaws of electronic-grade glass fiber cloth, which comprises the steps of finding out flaws to be modified on the cloth cover of the electronic-grade glass fiber cloth according to the length of the flaws detected by a CCD (charge coupled device), modifying the flaws by using a modifying needle and/or a modifying shear, and finally wiping the cloth cover of the modified electronic-grade glass fiber cloth smoothly by using a modifying wiper; wherein the diameter of the correction needle is 0.5-1.5 mm. The method for modifying the cloth cover flaws of the electronic-grade glass fiber cloth has the advantages that the diameter of the correcting needle is small, the needle point is sharp, the flaws 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.)

1. A method for modifying electronic-grade glass fiber cloth cover flaws is characterized by comprising the following steps:

finding a flaw repair of the cloth cover of the electronic-grade glass fiber cloth to be modified according to the length of the flaw detected by the CCD, modifying the flaw repair by using a modifying needle and/or a modifying shear, and finally wiping the cloth cover of the modified electronic-grade glass fiber cloth smoothly by using a modifying wiper;

wherein the diameter of the correction needle is 0.5-1.5 mm.

2. The method of claim 1 wherein the modifying wipe is 1 to 3 basis weights larger than the electronic grade fiberglass cloth to be modified.

3. The method of claim 2 wherein the defect is repaired to any one or more of a weft break anomaly, a loose weft anomaly or a following yarn anomaly.

4. The method according to claim 3, wherein when the defect is repaired to be a weft breakage anomaly, the weft breakage anomaly of the electronic-grade glass fiber cloth cover to be modified is found according to the length of the defect detected by a CCD (charge coupled device), the left end and the right end of weft yarn protruding from the surface are broken by using the correcting needle, the weft yarn is picked out, then the adjacent weft yarns of the weft yarn are uniformly pulled by using the correcting needle, and finally, the modified electronic-grade glass fiber cloth cover is wiped to be flat by using a modifying wiper.

5. The method as claimed in claim 3, wherein when the defect is repaired to be an abnormal loose-loop weft, the wavy weft of the electronic-grade glass fiber cloth cover to be modified is found according to the length of the defect detected by the CCD, and the wavy weft is pulled out by the resultant force of thumb and forefinger.

6. The method according to claim 3, wherein when the defect is repaired to be an abnormal loose stitch, the loose stitch of the surface of the electronic-grade glass fiber cloth to be modified is found according to the length of the defect detected by the CCD, the loose stitch protruding from the surface is cut off by using the repairing scissors, and finally the surface of the modified electronic-grade glass fiber cloth is wiped to be smooth by using the modifying wiper.

7. The method as claimed in claim 3, wherein when the defect is repaired to be abnormal, the defect length detected by CCD is used for finding out the polluted follow yarn on the cloth surface of the electronic grade glass fiber cloth to be modified, the two ends of the polluted follow yarn are picked up and picked out by the repairing needle, and finally the modified cloth surface of the electronic grade glass fiber cloth is wiped to be smooth by the modifying wiping cloth.

8. The method as claimed in claim 3, wherein when the defect repair is that the subsequent yarn is abnormal, the length of the defect detected by the CCD is used for finding the subsequent yarn containing the yarn end on the cloth surface of the electronic-grade glass fiber cloth to be modified, one end of the subsequent yarn containing the yarn end is cut off and pulled out by using the repair scissors, and finally, the modified electronic-grade glass fiber cloth is wiped to be flat by using the repair wiper.

9. The method of any of claims 1-8 wherein the modifying wipe is 1 basis weight greater than the electronic grade fiberglass cloth to be modified.

10. The method of claim 9, wherein the correction needle has a diameter of 1 mm.

Technical Field

The invention relates to the technical field of production of electronic-grade glass fiber cloth, in particular to a method for modifying cloth cover flaws of the electronic-grade glass fiber cloth.

Background

The glass fiber is an inorganic non-metallic material with excellent performance, has various varieties, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittleness and poor wear resistance. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and other various fields of the national economy.

The glass fiber cloth is a plain weave fabric of twistless roving and is an important substrate for manually pasting the glass fiber reinforced plastic. The strength of the glass fiber cloth is mainly in the warp and weft directions of the fabric, and the glass fiber cloth can be woven into unidirectional cloth for occasions requiring high warp or weft strength, and the unidirectional cloth can be formed by arranging more untwisted roving, single warp cloth and single weft cloth in the warp or weft direction.

In recent years, due to the light, thin, short and small and high-density assembly of domestic and foreign electronic products, the products are continuously upgraded, the precision is improved, the performance is improved, and the printed circuit board is promoted to rapidly develop towards multilayer and ultra-multilayer directions, which cannot be separated from thin, ultra-thin and ultra-thin electronic cloth. However, in the weaving process of thin, ultra-thin and ultra-thin electronic fabrics, defects are generated on the fabric surface of the electronic glass fiber fabric due to the problems of raw yarns and machine stations, and common defects on the fabric surface are weft breakage, warp dirt, loose weft and the like. Some abnormalities can be avoided in the weaving process of the electronic cloth, but some cloth cover abnormalities which cannot be avoided exist, so that surface modification defect abnormality needs to be directly carried out on the cloth cover. The method for modifying the cloth cover defect abnormity of the electronic-grade glass fiber cloth in the prior art generally has the problem that the requirements of downstream customers cannot be met.

Therefore, developing a novel method for modifying the cloth cover flaws of the electronic grade glass fiber cloth to solve the above problems is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The invention aims to provide a method for modifying defects of an electronic-grade glass fiber cloth cover, which can effectively modify defects of weft breakage, warp dirt, ring loosening and the like on the surface of the glass fiber cloth.

The invention provides a method for modifying cloth cover flaws of electronic-grade glass fiber cloth, which comprises the following steps:

finding a flaw repair of the cloth cover of the electronic-grade glass fiber cloth to be modified according to the length of the flaw detected by the CCD, modifying the flaw repair by using a modifying needle and/or a modifying shear, and finally wiping the cloth cover of the modified electronic-grade glass fiber cloth smoothly by using a modifying wiper;

wherein the diameter of the correction needle is 0.5-1.5 mm.

Aiming at defects such as weft breakage, warp dirt, loose weft and the like generated on the surface of the glass fiber cloth, the invention respectively provides corresponding modification methods, wherein the diameter of a used modification needle is 0.5-1.5mm, the diameter of the used modification needle is small, the needle point is sharp, and the defects of broken yarn type abnormalities can be easily repaired, so that the defects 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 modification process can be effectively avoided. In addition, the invention uses the modifying wiping cloth which is 1 basis weight larger than the electronic grade glass fiber cloth to be modified to wipe the surface of the glass fiber cloth, thereby further improving the smoothness of the surface of the glass fiber cloth. Therefore, the method for modifying the defects of the cloth cover of the electronic-grade glass fiber cloth can effectively modify the defects of weft breakage, warp dirt, ring loosening and the like on the surface of the glass fiber cloth, and greatly reduces the occurrence proportion of the defects of the cloth cover of the finished product cloth of the electronic-grade glass fiber cloth flowing to downstream customers.

Further, the size of the modified wiping cloth is 1-3 basis weights larger than the electronic grade glass fiber cloth to be modified.

The specification of the modified wiping cloth is 1-3 basis weights larger than that of the electronic-grade glass fiber cloth to be modified, and the smoothness of the surface of the glass fiber cloth can be ensured, for example, the basis weight of 7628 cloth is 210g, the basis weight of 2116 cloth is 104g, the basis weight of 1080 cloth is 48g, the basis weight of 1067 cloth is 30g, and the basis weight of 1037 cloth is 23.5 g. 7628 when 2116 distribution needs to be modified; when 1080 kinds of seeds need to be modified, 2116 kinds of seeds are used; when 1067 cloth seeds need to be modified, 1080 cloth seeds are used; when 1037 kinds of seeds need to be modified, 1067 kinds of seeds are used.

Further, the flaw is corrected to be any one or more of weft breakage abnormity, loose weft abnormity or subsequent yarn abnormity.

Aiming at defects such as weft breakage, warp dirt, ring loosening and the like generated on the surface of the thin, ultra-thin and ultra-thin electronic grade glass fiber cloth due to the problems of raw yarns and machine tables in the manufacturing process, the defects targeted by the invention comprise any one or more of weft breakage abnormality, ring loosening and weft abnormality or yarn adhesion abnormality.

Further, when the flaw is repaired to be the weft breakage abnormity, the weft breakage abnormity of the cloth cover of the electronic-grade glass fiber cloth to be modified is found according to the length of the flaw detected by the CCD, the left end and the right end of the weft yarn protruding out of the surface are broken by the aid of the repairing needle, the weft yarn is picked out, then the adjacent weft yarns of the weft yarn are uniformly pulled by the aid of the repairing needle, and finally the modified cloth cover of the electronic-grade glass fiber cloth is wiped to be smooth by the aid of the modifying wiper.

Further, when the flaws are repaired to be abnormal loose-loop wefts, the wavy wefts of the electronic-grade glass fiber cloth cover to be modified are found according to the length of the flaws detected by the CCD, and the wavy wefts are pulled out by the aid of the resultant force of a thumb and an index finger.

Further, when the defect is repaired to be the loose stitch weft abnormality, the loose stitch weft of the electronic-grade glass fiber cloth surface to be modified is found according to the length of the defect detected by the CCD, the loose stitch weft protruding from the surface is cut off by using the repairing scissors, and finally, the modified electronic-grade glass fiber cloth surface is wiped smoothly by using the modifying wiper.

Further, when the defect repair is that the binding yarn is abnormal, finding the polluted binding yarn of the cloth surface of the electronic-grade glass fiber cloth to be modified according to the length of the defect detected by the CCD, breaking and picking out two ends of the polluted binding yarn by using the correction needle, and finally wiping the cloth surface of the modified electronic-grade glass fiber cloth smoothly by using the modifying wiping cloth.

Further, when the defect repair is that the binding yarn is abnormal, finding the binding yarn containing the yarn end of the cloth cover of the electronic-grade glass fiber cloth to be modified according to the length of the defect detected by the CCD, cutting one end of the binding yarn containing the yarn end by using the correction scissors and pulling out the binding yarn, and finally wiping the cloth cover of the modified electronic-grade glass fiber cloth smoothly by using the modifying wiper.

Further, the size of the modified wipe is 1 basis weight greater than the electronic grade fiberglass cloth to be modified.

Further, the diameter of the correction needle is 1 mm.

When the diameter of the correction needle is thick and the needle point is not sharp enough, the cloth roll is easily scratched in the process of modifying the cloth roll, and the risk of incomplete abnormal modification exists, so that the diameter of the correction needle is preferably 1 mm.

Compared with the prior art, the method for modifying the cloth cover flaws of the electronic-grade glass fiber cloth has the following advantages:

aiming at defects such as broken weft, broken warp, dirty warp and loose weft on the surface of the thin, extremely thin and ultrathin electronic grade glass fiber cloth caused by the problems of raw yarn and machine table in the manufacturing process, the invention respectively provides corresponding modification methods, wherein the diameter of a used modification needle is 0.5-1.5mm, the diameter of the modification needle is small, the needle point is sharp, and the defects of broken yarn type abnormality can be easily repaired, so that the defects 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 modification process can be effectively avoided. In addition, the invention uses the modifying wiping cloth which is 1 basis weight larger than the electronic grade glass fiber cloth to be modified to wipe the surface of the glass fiber cloth, thereby further improving the smoothness of the surface of the glass fiber cloth. Therefore, the method for modifying the defects of the cloth cover of the electronic-grade glass fiber cloth can effectively modify the defects of weft breakage, warp dirt, ring loosening and the like on the surface of the glass fiber cloth, and greatly reduces the occurrence proportion of the defects of the cloth cover of the finished product cloth of the electronic-grade glass fiber cloth flowing to downstream customers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 shows weft breakage anomaly of an electronic grade glass fiber cloth according to the present invention;

FIG. 2 shows the abnormal loose weft of the electronic grade glass fiber cloth according to the present invention;

FIG. 3 shows the yarn-receiving abnormality of the electronic grade glass fiber cloth of the present invention.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms also include the plural forms unless the context clearly dictates otherwise, and further, it is understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of the stated features, steps, operations, devices, components, and/or combinations thereof.

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

For 2116 cloth types (with the basis weight of 104g) of electronic grade glass fiber cloth weft broken abnormity, a worker records the length of a flaw detected by a CCD before checking, corrects the flaw according to the length of the meter detected by the CCD in the cloth checking process, breaks the left end and the right end of a weft yarn protruding from the surface by using a correction needle with the diameter of 0.5mm, picks out the protruding yarn by using the correction needle, (note: when the correction needle is used, other yarns cannot be broken, and when the broken yarn is picked out, residual yarn cannot be remained), after picking out the middle protruding yarn, uniformly picks out the adjacent weft yarns by using the correction needle, and finally, cleans the yarn heads passing through the two ends by using a modified wiping cloth 7628 cloth (with the basis weight of 210g) which is 1 base weight larger than that of the electronic grade glass fiber cloth to be modified, wherein the proportion of the weft broken flaw flowing to downstream customers is 1%.

Example 2

For the abnormal items of the electronic-grade glass fiber cloth loose loop wefts, before inspection, workers record the length of a flaw detected by a CCD (charge coupled device), find the wavy wefts of the electronic-grade glass fiber cloth cover to be modified according to the length of the flaw detected by the CCD, and pull out the wavy wefts through the resultant force of a thumb and a forefinger, wherein the occurrence proportion of the abnormal flow of the electronic-grade glass fiber cloth loose loop wefts to downstream customers is 2%.

Example 3

For an abnormal loose stitch of 1080 cloth (with a basis weight of 48g) electronic grade glass fiber cloth, a worker records the length of a flaw detected by a CCD before checking, finds out the loose stitch of the cloth surface of the electronic grade glass fiber cloth to be modified according to the length of the flaw detected by the CCD, uses the correcting scissors to cut the loose stitch with the convex surface, and finally uses a 2116 cloth (with a basis weight of 104g) modified wiping cloth which is 1 basis weight larger than the electronic grade glass fiber cloth to be modified to wipe the cloth surface of the modified electronic grade glass fiber cloth to be flat, wherein the occurrence proportion of the abnormal loose stitch of the cloth surface of the finished cloth to flow to downstream customers is 1%.

Example 4

For 1067 electronic grade fiberglass cloth (with the basis weight of 30g) subsequent yarn abnormal items, a worker records the length of a flaw meter detected by a CCD before checking, finds out a subsequent yarn with the polluted cloth surface of the electronic grade fiberglass cloth to be modified according to the length of the flaw meter detected by the CCD, then uses the correcting needle to cut off and pick out two ends of the polluted subsequent yarn, and finally uses 1080 cloth (with the basis weight of 48g) modifying wiping cloth with 1 basis weight larger than that of the electronic grade fiberglass cloth to be modified to wipe and level the cloth surface of the modified electronic grade fiberglass cloth, wherein the occurrence proportion of the subsequent yarn defect abnormal flow of the cloth surface of the finished cloth to downstream customers is 1%.

Example 5

For the 1037 cloth (with the basis weight of 23.5g) electronic grade glass fiber cloth subsequent yarn abnormal items, a worker records the length of a flaw meter detected by a CCD before checking, finds out the electronic grade glass fiber cloth surface yarn-containing subsequent yarn to be modified according to the length of the flaw meter detected by the CCD, uses the correcting scissors to cut and pull out one end of the yarn-containing subsequent yarn, and finally uses 1067 cloth (with the basis weight of 30g) modifying wiping cloth with the basis weight 1 larger than that of the electronic grade glass fiber cloth to be modified to wipe and smooth the surface of the modified electronic grade glass fiber cloth, wherein the occurrence proportion of the cloth surface subsequent yarn defect abnormal flow of the finished cloth to downstream customers is 1%.

Comparative example 1

Finally, the ends of the yarns picked at the two ends are wiped clean by using 2116 cloth (the basis weight is 104g) modified wiping cloth with 3 basis weights larger than the electronic grade glass fiber cloth to be modified, and otherwise, the occurrence rate of abnormal flow of cloth cover defects of the finished cloth to downstream customers is 4 percent as in example 5.

Comparative example 2

With the prior art correction needle with the diameter of 2mm, the occurrence rate of the cloth cover defect of the finished cloth which abnormally flows to downstream customers is 5% as in example 1.

It can be seen that the occurrence rates of abnormal flow of cloth surface defects to downstream customers are reduced from 4% and 5% to 1% respectively when the glass fiber cloth of the same cloth type is treated by the methods of comparative example 1, comparative example 2 and example 5. Therefore, the method for modifying the defects of the cloth cover of the electronic-grade glass fiber cloth can effectively modify the defects of weft breakage, warp dirt, ring loosening and the like on the surface of the glass fiber cloth, and greatly reduces the occurrence proportion of the defects of the cloth cover of the finished product cloth of the electronic-grade glass fiber cloth flowing to downstream customers.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.