CN104233567A - Production process for electronic glass fiber cloth - Google Patents
Production process for electronic glass fiber cloth Download PDFInfo
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- CN104233567A CN104233567A CN201410295744.0A CN201410295744A CN104233567A CN 104233567 A CN104233567 A CN 104233567A CN 201410295744 A CN201410295744 A CN 201410295744A CN 104233567 A CN104233567 A CN 104233567A
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Abstract
The invention discloses a production process for electronic glass fiber cloth. The production process includes the following steps: drawing, namely preparing proper impregnating agent, performing uniform film forming on precursor fiber, and performing aftertreatment, wherein aftertreatment process includes continuous thermal treatment, batch-wise thermal treatment, chemical treatment of surface, drying and rolling for forming of a cloth roll, and obtaining of the glass fiber cloth through inspecting and packaging. By the production process, performance and surface quality of the electronic glass fiber cloth are guaranteed.
Description
Technical field
The present invention relates to field fabric manufacturing area, particularly a kind of production technology of electron glass fiber cloth.
Background technology
Glass fibre is a kind of engineering material, has a series of excellent specific properties such as high temperature resistant, anticorrosive, intensity is high, density is little, moisture absorption is low, it is little to extend and insulation is good.Glass fibre has become the material in modern nonmetallic materials family with unique function, and they belong to micron order glassy state fiber.At present, glass fibre material product is at machinery, electrically, optics, given play to unique performance and effect in corrosion-resistant, adiabatic and sound absorption etc., and Application Areas is also very fast throughout arriving the national economy industry-by-industries such as electronics, electrical equipment, traffic, building, Aeronautics and Astronautics, environmental protection and defence and military.They are again the enhancing base material of composite, electrically insulating material, heat-barrier material, sound-absorbing material, one of optical transport material and functional fibre material.
Electron glass fiber cloth refers to the general name of the glass fabric for electronics industry, belongs to electrical glass fibre cloth category, is referred to as E glass fabric abroad, is a up-and-coming youngster in E glass fibre series of products.Traditional textile technology has been used for reference in the production of electronic-grade glass fiber cloth, and creates unique aft-loaded airfoil system.Its production technology difficulty is large, and product quality requires high, and being regarded as the new high-tech product in glass fibre series of products, is also the expensive goods in electrical glass fibre, is widely used in the copper coated foil plate in making electronics industry and printed circuit board.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of production technology of electron glass fiber cloth, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the invention provides following technical scheme: a kind of production technology of electron glass fiber cloth, is characterized in that: comprise the steps:
A, wire drawing: first configure suitable sizing agent, homogeneous film formation on precursor;
B, weft yarn, weft yarn operation comprises: twist thread (first twist), batch warping (or whole slurry associating) axle starching, pass, jetly to weave cotton cloth.
C, post processing, postprocessing working procedures comprises: continuous heat, batch heat, chemical surface treatment;
D, oven dry are rolled into yardage roll, through checking and being packaged to be glass fabric.
Preferably, in described steps A, wire drawing sizing agent majority is modified starch type, and precursor number is 6817 Tekes (tex).
Preferably, in described step B, modified starch type slurry in the operation of batch warping, is adopted to carry out sizing process.
Preferably, in described step C, adopt high temperature destarch stove to carry out continuous heat and batch heat, continuous heat Control for Kiln Temperature is at 420--465 DEG C, and the temperature of batch heat controls at 400--430 DEG C.
Preferably, described glass fabric chemical surface treatment adopts silane finish process.
Adopt the beneficial effect of above technical scheme to be: the electron glass fiber cloth of structure of the present invention configures suitable sizing agent, homogeneous film formation on precursor, to reduce precursor filoplume, improve and weave production efficiency.The object of wire drawing process mainly makes the line density of precursor keep all even stable, both the surface density of electronic-grade glass fiber cloth and the uniform and stable of fabric thickness had been ensure that, cloth cover can not be made again to produce serious filoplume, cause fabric face occur micelle phenomenon and have a strong impact on the performance of fabric.
The effect of postprocessing working procedures is heated under certain working condition, uniform temperature by glass fabric, the sizing agent decomposition of components making it coating, charing, burning and removing.They to the textiles be made into the precursor of textile size process, these sizing agents must be removed, because can hinder the bonding of glass fabric and resin, rubber and other materials.Postprocessing working procedures comprises: continuous heat, batch heat, chemical surface treatment.For continuous heat, key is correct setting and furnace temperature and the speed of service controlling high temperature destarch stove, technology key is the temperature and time grasping process, its objective is the most of organic matter on removing cloth cover, makes organic substance residues amount be reduced to less than 0.5%.Generally speaking, the treatment temperature of electronic-grade glass fiber cloth is not to be advisable higher than 450 DEG C, and the object of furnace temperature and speed of service setting and adjustment is exactly the organic substance residues figureofmerit that will reach technological requirement, and reduces loss of strength as far as possible.Electronic-grade glass fiber cloth after heat treatment also needs by chemical surface treatment, to improve the combination interface of glass fibre and resin, improves mechanical property and the electrical property of composite board.The basic skills of electronic-grade glass fiber cloth chemical surface treatment adopts silane finish (also known as coupling agent) process, finally dried and be rolled into yardage roll, through checking and being packaged to be electronic-grade glass fiber cloth finished product.
Detailed description of the invention
The following detailed description of the preferred embodiment of a kind of electron glass fiber cloth of the present invention.
The detailed description of the invention of a kind of electron glass fiber of the present invention cloth: a kind of production technology of electron glass fiber cloth, is characterized in that: comprise the steps:
A, wire drawing: first configure suitable sizing agent, homogeneous film formation on precursor;
B, weft yarn, weft yarn operation comprises: twist thread (first twist), batch warping (or whole slurry associating) axle starching, pass, jetly to weave cotton cloth.
C, post processing, postprocessing working procedures comprises: continuous heat, batch heat, chemical surface treatment;
D, oven dry are rolled into yardage roll, through checking and being packaged to be glass fabric.
In described steps A, wire drawing sizing agent majority is modified starch type, and precursor number is 6817 Tekes (tex).
In described step B, modified starch type slurry in the operation of batch warping, is adopted to carry out sizing process.
In described step C, adopt high temperature destarch stove to carry out continuous heat and batch heat, continuous heat Control for Kiln Temperature is at 420--465 DEG C, and the temperature of batch heat controls at 400--430 DEG C.
Described glass fabric chemical surface treatment adopts silane finish process.。
The electron glass fiber cloth of structure of the present invention configures suitable sizing agent, homogeneous film formation on precursor, to reduce precursor filoplume, improves and weaves production efficiency.The object of wire drawing process mainly makes the line density of precursor keep all even stable, both the surface density of electronic-grade glass fiber cloth and the uniform and stable of fabric thickness had been ensure that, cloth cover can not be made again to produce serious filoplume, cause fabric face occur micelle phenomenon and have a strong impact on the performance of fabric.
The effect of postprocessing working procedures is heated under certain working condition, uniform temperature by glass fabric, the sizing agent decomposition of components making it coating, charing, burning and removing.They to the textiles be made into the precursor of textile size process, these sizing agents must be removed, because can hinder the bonding of glass fabric and resin, rubber and other materials.Postprocessing working procedures comprises: continuous heat, batch heat, chemical surface treatment.For continuous heat, key is correct setting and furnace temperature and the speed of service controlling high temperature destarch stove, technology key is the temperature and time grasping process, its objective is the most of organic matter on removing cloth cover, makes organic substance residues amount be reduced to less than 0.5%.Generally speaking, the treatment temperature of electronic-grade glass fiber cloth is not to be advisable higher than 450 DEG C, and the object of furnace temperature and speed of service setting and adjustment is exactly the organic substance residues figureofmerit that will reach technological requirement, and reduces loss of strength as far as possible.Electronic-grade glass fiber cloth after heat treatment also needs by chemical surface treatment, to improve the combination interface of glass fibre and resin, improves mechanical property and the electrical property of composite board.The basic skills of electronic-grade glass fiber cloth chemical surface treatment adopts silane finish process, finally dried and be rolled into yardage roll, through checking and being packaged to be electronic-grade glass fiber cloth finished product.
The index of cloth cover organic substance residues amount when the key of electronic-grade glass fiber cloth postprocessing working procedures is heat treatment, as index is too high, may there is yellow black line phenomenon in cloth cover, this phenomenon not only affects fabric appearance, also can have a strong impact on the conductance of fabric.In surface treatment procedure, if coupling agent solution instability will have a strong impact on the bonding of electronic-grade glass fiber cloth and resin.In electronic-grade glass fiber cloth production process, also have a major issue, namely upper weft thread is crooked, and this mainly weaves and in last handling process, each deflector roll of cloth cover process is not parallel causes, and finally can cause electronic-grade glass fiber cloth warpage.The presentation quality of electronic-grade glass fiber cloth, the generation as weave faults is substantially identical with COTTON FABRIC.According to the characteristic of glass fibre, electronic-grade glass fiber cloth mainly should note following three problems in process of manufacture:
(1) the least possible processing number of times is adopted;
(2) process route reduces as far as possible bending and the friction of glass fibre;
(3) need in process to keep uniform tension force, this is particularly important to glass fabric.
Copper-clad plate electronic-grade glass fiber cloth, its single fiber diameter is all 9Lm, and on the bushing of tank furnace 800 hole, two points are drawn, or on 1200 hole bushings three points draw, adopt inserted sheet to add misting cooling, monofilament oiling and making.The wire drawing sizing agent majority adopted is modified starch type, and precursor number is 6817 Tekes (tex).
The difference of wire drawing sizing agent type looked by precursor, can adopt air dry, the strict epidemic disaster controlling workshop, not joint, not Split Down.The package amount of one-ply yarn often reaches 4 ~ 8 kilograms only, and its twist is 28 ~ 40 twists/m.
The single warps of these low twists, in warping process, is made the large coiled hair that nearly 5 myriametres are long, then is adopted modified starch type slurry to carry out sizing process.Warp yam surface through impregnating slurry is smooth, forms the very thin diaphragm of one deck, can ensure that warp thread is in weaving process, not the mechanical movement of reason loom and the fluffing that rubs.Therefore, the glass fibre cloth cover weaving out is smooth well-pressed, can guarantee that copper-clad plate manufacturer is when cloth cover gluing, can not produce the outward appearances such as micelle and shelter a little, thus make the printed circuit board of production not produce warpage.
Weave cotton cloth and adopt air-jet loom (i.e. shuttle less loom).The thread count of cloth is 42*32 root/25mm, and package amount is every 1000 ~ 2000m.For making weft yarn in course of injection, there is the stiffness required for weaving process, to reach certain flying away property, precursor is in pulling process, sizing agent adhesion amount must be suitably, precursor all will strictly control in the heated-air drying temperature of moving back in solution preocess and the epidemic disaster of weaving cotton cloth in process, just can be greater than 715 main external appearance and shelter a little.
After weaving, because cloth cover has the very thin organic ink of one deck, be unfavorable for the gluing making sheet of copper-clad plate manufacturer, also can affect the electrical insulation capability of the final products of printed circuit board producer, therefore last procedure must be the heat of cloth cover) chemical treatment.First in pre-destarch unit, carry out the pre-destarch of continuous low-temperature, then carry out the destarch of batch (-type) high-temperature hot in hot destarch unit, can by cloth cover the slurry that applies be removed to bottom line.Finally flood one deck silane coupling agent at cloth cover, namely become copper-clad plate electronic-grade glass fiber cloth.Its cloth cover combustible content is 01075 ~ 0.25%, and tensile break strength radial direction is not less than 294N/25mm, and broadwise is not less than 250N/25mm.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a production technology for electron glass fiber cloth, is characterized in that: comprise the steps:
Wire drawing: first configure suitable sizing agent, homogeneous film formation on precursor;
Weft yarn, weft yarn operation comprises: twist thread (first twist), batch warping (or whole slurry associating) axle starching, pass, jetly to weave cotton cloth.
2. post processing, postprocessing working procedures comprises: continuous heat, batch heat, chemical surface treatment;
Oven dry is rolled into yardage roll, through checking and being packaged to be glass fabric.
3. the production technology of electron glass fiber cloth according to claim 1, is characterized in that: in described steps A, and wire drawing sizing agent majority is modified starch type, and precursor number is 6817 Tekes (tex).
4. the production technology of electron glass fiber cloth according to claim 1, is characterized in that: in described step B, adopts modified starch type slurry to carry out sizing process in the operation of batch warping.
5. the production technology of electron glass fiber cloth according to claim 1, it is characterized in that: in described step C, adopt high temperature destarch stove to carry out continuous heat and batch heat, continuous heat Control for Kiln Temperature is at 420--465 DEG C, and the temperature of batch heat controls at 400--430 DEG C.
6. the production technology of electron glass fiber cloth according to claim 1, is characterized in that: described glass fabric chemical surface treatment adopts silane finish process.
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| CN201410295744.0A CN104233567A (en) | 2014-06-27 | 2014-06-27 | Production process for electronic glass fiber cloth |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695088A (en) * | 2015-02-10 | 2015-06-10 | 安徽丹凤集团桐城玻璃纤维有限公司 | Production method for glass fiber electronic fabric |
| CN104878503A (en) * | 2015-05-28 | 2015-09-02 | 安徽丹凤集团桐城玻璃纤维有限公司 | Production process of electronic grade glass fiber cloth |
| CN104947427A (en) * | 2015-05-28 | 2015-09-30 | 安徽丹凤集团桐城玻璃纤维有限公司 | High-quality glass fiber cloth |
| CN104947358A (en) * | 2015-03-27 | 2015-09-30 | 安徽丹凤电子材料股份有限公司 | Electronic fabric surface treatment technology |
| CN105648622A (en) * | 2015-12-25 | 2016-06-08 | 广东生益科技股份有限公司 | Making method of IC carrier band base material |
| CN105734995A (en) * | 2016-04-05 | 2016-07-06 | 常熟江南玻璃纤维有限公司 | Preparation method of high-performance fire blanket |
| CN107201652A (en) * | 2017-07-03 | 2017-09-26 | 珠海珠玻电子材料有限公司 | A kind of glass fabric treatment agent formula |
| CN109264987A (en) * | 2018-10-09 | 2019-01-25 | 合肥聚能电物理高技术开发有限公司 | A kind of modification process improving glass fiber high-temperature insulation performance |
| CN109355776A (en) * | 2018-11-02 | 2019-02-19 | 山东谦津电子科技有限公司 | The overweight weaving process method for thickening electronic-grade glass fiber cloth |
| CN110258120A (en) * | 2019-07-25 | 2019-09-20 | 清远凯荣德玻璃纤维有限公司 | A kind of production method of electronic-grade glass fiber cloth |
| CN111379061A (en) * | 2020-04-17 | 2020-07-07 | 安徽丹凤电子材料股份有限公司 | Electronic cloth and processing method thereof |
| CN112813684A (en) * | 2021-01-05 | 2021-05-18 | 河南光远新材料股份有限公司 | Low-dielectric electronic-grade glass fiber cloth and production method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695088A (en) * | 2015-02-10 | 2015-06-10 | 安徽丹凤集团桐城玻璃纤维有限公司 | Production method for glass fiber electronic fabric |
| CN104947358A (en) * | 2015-03-27 | 2015-09-30 | 安徽丹凤电子材料股份有限公司 | Electronic fabric surface treatment technology |
| CN104878503A (en) * | 2015-05-28 | 2015-09-02 | 安徽丹凤集团桐城玻璃纤维有限公司 | Production process of electronic grade glass fiber cloth |
| CN104947427A (en) * | 2015-05-28 | 2015-09-30 | 安徽丹凤集团桐城玻璃纤维有限公司 | High-quality glass fiber cloth |
| CN105648622A (en) * | 2015-12-25 | 2016-06-08 | 广东生益科技股份有限公司 | Making method of IC carrier band base material |
| CN105734995A (en) * | 2016-04-05 | 2016-07-06 | 常熟江南玻璃纤维有限公司 | Preparation method of high-performance fire blanket |
| CN107201652A (en) * | 2017-07-03 | 2017-09-26 | 珠海珠玻电子材料有限公司 | A kind of glass fabric treatment agent formula |
| CN109264987A (en) * | 2018-10-09 | 2019-01-25 | 合肥聚能电物理高技术开发有限公司 | A kind of modification process improving glass fiber high-temperature insulation performance |
| CN109264987B (en) * | 2018-10-09 | 2022-08-23 | 合肥聚能电物理高技术开发有限公司 | Modification treatment process for improving high-temperature insulating property of glass fiber |
| CN109355776A (en) * | 2018-11-02 | 2019-02-19 | 山东谦津电子科技有限公司 | The overweight weaving process method for thickening electronic-grade glass fiber cloth |
| CN110258120A (en) * | 2019-07-25 | 2019-09-20 | 清远凯荣德玻璃纤维有限公司 | A kind of production method of electronic-grade glass fiber cloth |
| CN110258120B (en) * | 2019-07-25 | 2020-05-22 | 清远凯荣德玻璃纤维有限公司 | Production method of electronic-grade glass fiber cloth |
| CN111379061A (en) * | 2020-04-17 | 2020-07-07 | 安徽丹凤电子材料股份有限公司 | Electronic cloth and processing method thereof |
| CN112813684A (en) * | 2021-01-05 | 2021-05-18 | 河南光远新材料股份有限公司 | Low-dielectric electronic-grade glass fiber cloth and production method thereof |
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Application publication date: 20141224 |