Electronic-grade glass fiber cloth 1007 as well as preparation method and application thereof
By using specific yarns and preparation methods, the electronic grade fiberglass fabric 1007 is solved, and the existing materials are difficult to meet the needs of electronic equipment in complex environments is achieved, and a thinner and stable material preparation is achieved.
Patent Information
- Application Number
- CN202411940721.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-04-11
AI Technical Summary
Existing electronic grade fiberglass cloths are difficult to meet the stringent demands of rapidly developing electronic equipment for material characteristics, especially in complex environments.
The original yarn BC4500 is used as the warp and weft yarn, and the electronic grade fiberglass cloth 1007 is prepared by sizing treatment, slurrying, air jet weaving, desizing and surface treatment.
The electronic grade fiberglass fabric 1007 produced not only maintains the performance of other fabrics, but is also thinner, has stable physical and chemical properties, can meet the use requirements in complex environments, and is suitable for small and lightweight electronic devices.
Smart Images
Figure BDA0005212521170000061
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic-grade glass fiber cloth production, and in particular to an electronic-grade glass fiber cloth 1007 and a preparation method and application thereof. Background Art
[0002] Electronic cloth is a general term for electronic-grade glass fiber cloth used in the electronics industry. It is an indispensable material for the production of copper-clad laminates and a special basic material for the production of printed circuit boards. In today's highly developed electronic information industry, electronic cloth plays a vital role as an indispensable key material in the electronics industry.
[0003] The downstream applications of electronic cloth cover a wide range, among which communication electronics, computers, consumer electronics, and automotive electronics are the four largest application areas. According to statistics, the demand in the above areas accounts for 33.0%, 28.6%, 14.8%, and 11.2%, respectively, totaling 87.6%. Electronic cloth is an indispensable material for the production of copper-clad laminates, and is also a dedicated basic material for the production of printed circuit boards and a basic material for electronic equipment. With the rapid development of electronic equipment technology, such as the continuous reduction of chip manufacturing processes, the increasingly complex and diverse functions of electronic products, and the continuous improvement of requirements for operating speed and stability, if electronic cloth does not have more superior characteristics, it will be difficult to meet the stringent requirements of these electronic devices. Therefore, as a basic material for electronic equipment, the characteristics of electronic cloth itself need to be more superior, otherwise it will not be able to meet the relevant needs of rapidly developing electronic equipment.
[0004] Based on this, the present invention proposes a new electronic glass fiber cloth type 1007. Summary of the invention
[0005] The first purpose of the present invention is to provide an electronic-grade glass fiber cloth 1007. As a new type of cloth, the electronic-grade glass fiber cloth 1007 can improve the characteristics of the electronic glass fiber cloth itself and meet the needs of the increasingly developed electronic equipment.
[0006] The second purpose of the present invention is to provide a method for preparing electronic grade glass fiber cloth 1007, which is simple and reasonable.
[0007] The electronic-grade glass fiber cloth 1007 provided by the present invention is woven from original yarn BC4500 as warp yarn and original yarn BC4500 as weft yarn.
[0008] The present invention also provides a method for preparing electronic grade glass fiber cloth 1007, comprising the following steps:
[0009] S1. The original yarn BC4500 is sized, and then the yarn is arranged and wound on the warp beam with uniform tension, and the sized warp beam is warped to obtain the weaving beam;
[0010] S2. After the weaving shaft is threaded in sequence, the original yarn BC4500 is fed into the air jet loom as the warp and weft yarns for weaving, and different warp and weft densities are interwoven to form a glass fiber fabric;
[0011] S3. Desizing and surface treating the glass fiber cloth to obtain electronic grade glass fiber cloth 1007.
[0012] Preferably, in step S1, the specific steps of sizing treatment are: placing the original yarn BC450 on the warping frame in sequence, pulling out the yarn head through the tensioner and placing it on the reed in order, passing the arranged yarn through the yarn guide disk and the sizing groove, and then passing it through the drying wheel to complete the sizing process.
[0013] Preferably, in the step S1, the slurry concentration used in the slurrying process is (12±0.5)%.
[0014] Preferably, in step S2, the warp yarn density is (97±2) yarns / inch, and the weft yarn density is (96±2) yarns / inch.
[0015] Preferably, the basis weight of the glass fiber grey cloth in step S2 is (8.4±1.5) g / m 2 .
[0016] Preferably, the desizing in step S3 includes primary desizing and secondary desizing performed sequentially.
[0017] Preferably, the primary desizing adopts water washing desizing of the grey cloth. The present invention adopts water washing desizing for primary desizing, which is sufficient to remove most of the water-soluble sizing agent and some impurities. At the same time, compared with the traditional high-temperature desizing method of primary desizing furnace, it avoids the problem of over-burning of thin cloth desizing performance and abnormal cloth breaking in subsequent surface treatment.
[0018] Preferably, the secondary desizing is smoldering desizing at a furnace temperature of 400-420°C.
[0019] The present invention also provides application of electronic-grade glass fiber cloth 1007 in the field of copper-clad laminates and printed circuit boards.
[0020] Beneficial effects:
[0021] The electronic glass fiber cloth 1007 produced by the present invention adopts new yarn and preparation method, which not only has the performance of other cloth types, but also can meet the needs of the continuous development of copper clad laminates, has better performance, high added value of electronic cloth, is more energy-saving and more environmentally friendly.
[0022] The electronic glass fiber cloth 1007 provided by the present invention is lighter and thinner than the existing glass fiber cloth, and still has stable physical and chemical properties on the basis of being lighter and thinner, and can meet the use requirements of electronic equipment in complex environments, and is suitable for electronic equipment that has requirements on weight and space. DETAILED DESCRIPTION
[0023] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form also includes the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this description, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] Example 1
[0027] A method for preparing electronic grade glass fiber cloth 1007 comprises the following steps:
[0028] S1. Sizing the raw yarn BC4500, placing 4788 raw yarns BC450 on the warping creel in sequence, pulling out the yarn ends and passing them through the tensioner and placing them on the reed in order, passing the arranged yarn through the yarn guide disk and the sizing groove, and then passing through the drying wheel to complete the sizing process; arranging the sizing yarns, sticking and fixing them with tape, winding them on the warp beams with uniform tension, and sizing them. The sizing concentration used in the sizing process is 12%, and the sized warp beams are warped by 6 warp beams and warping machines to obtain weaving beams; multi-warp beam warping can make the tension of the yarn more uniform, avoid weaving defects caused by inconsistent tension of single warp beams, and improve the quality and consistency of the weaving beams;
[0029] S2. After the weaving beams are threaded in sequence, the raw yarn BC4500 processed in step S1 is fed into the air jet loom as the warp and weft yarns for weaving. The warp density is 95 yarns / inch and the weft density is 97 yarns / inch. The glass fiber fabric is interwoven to obtain a basis weight of 8.4 g / m 2 ;
[0030] S3. The glass fiber grey cloth is desized once by washing and desizing to reduce abnormal loss of thin cloth due to over-burning at high temperature, and then desizing is carried out at high temperature furnace temperature. The secondary desizing is completed by smoldering desizing at a furnace temperature of 410°C. In the secondary desizing, the slurry and ash on the surface of the cloth sample are easily decomposed and gasified, ensuring the complete removal of the slurry, improving the surface properties of the glass fiber cloth, and making it smoother and flatter. After desizing, surface treatment is carried out to obtain electronic grade glass fiber cloth 1007.
[0031] Example 2
[0032] A method for preparing electronic grade glass fiber cloth 1007 comprises the following steps:
[0033] S1. Sizing the raw yarn BC4500, placing 4788 raw yarns BC450 on the warping creel in sequence, pulling out the yarn ends, passing through the tensioner and placing them on the reed in order, passing the arranged yarn through the yarn guide disk, passing through the sizing groove, and then passing through the drying wheel to complete the sizing process; arranging the sizing yarn, sticking and fixing it with tape, winding it on the warp beam with uniform tension, and sizing it. The sizing concentration used in the sizing process is 11.5%, and the sized warp beams are warped by 6 warp beams and warping machines to obtain weaving beams; multi-warp beam warping can make the tension of the yarn more uniform, avoid weaving defects caused by inconsistent tension of single warp beams, and improve the quality and consistency of the weaving beams;
[0034] S2. After the weaving beams are threaded in sequence, the raw yarn BC4500 processed in step S1 is fed into the air jet loom as the warp and weft yarns for weaving. The warp density is 97 yarns / inch and the weft density is 94 yarns / inch. The glass fiber fabric is interwoven to obtain a basis weight of 7.6 g / m 2 ;
[0035] S3. The glass fiber grey cloth is desized once by washing and desizing the grey cloth to reduce the abnormal loss of thin cloth due to over-burning at high temperature, and then desizing is carried out at high temperature furnace temperature. The secondary desizing is completed by smoldering desizing at a furnace temperature of 400°C. In the secondary desizing, the slurry and ash on the surface of the cloth sample are easily decomposed and gasified, ensuring the complete removal of the slurry, improving the surface properties of the glass fiber cloth, and making it smoother and flatter. After desizing, surface treatment is carried out to obtain electronic grade glass fiber cloth 1007.
[0036] Example 3
[0037] A method for preparing electronic grade glass fiber cloth 1007 comprises the following steps:
[0038] S1. Sizing the raw yarn BC4500, placing 4788 raw yarns BC450 on the warping creel in sequence, pulling out the yarn ends and passing them through the tensioner and placing them on the reed in order, passing the arranged yarn through the yarn guide disk and the sizing groove, and then passing through the drying wheel to complete the sizing process; arranging the sized yarns, fixing them with tape, winding them on the warp beams with uniform tension, and sizing them. The sizing concentration used in the sizing process is 12.5%, and the sized warp beams are warped by 6 warp beams and warping machines to obtain weaving beams; multi-warp beam warping can make the tension of the yarn more uniform, avoid weaving defects caused by inconsistent tension of single warp beams, and improve the quality and consistency of the weaving beams;
[0039] S2. After the weaving shafts are threaded in sequence, the raw yarn BC4500 processed in step S1 is fed into the air jet loom as the warp and weft yarns for weaving. The warp density is 99 yarns / inch and the weft density is 98 yarns / inch. The glass fiber fabric is interwoven to obtain a basis weight of 9.1 g / m 2 ;
[0040] S3. The glass fiber grey cloth is desized once by washing and desizing the grey cloth to reduce abnormal loss of thin cloth due to over-burning at high temperature, and then desizing is carried out at high temperature furnace temperature. The secondary desizing is completed by smoldering desizing at a furnace temperature of 420°C. In the secondary desizing, the slurry and ash on the surface of the cloth sample are easily decomposed and gasified, ensuring the complete removal of the slurry, improving the surface properties of the glass fiber cloth, and making it smoother and flatter. After desizing, surface treatment is carried out to obtain electronic grade glass fiber cloth 1007.
[0041] The electronic grade glass fiber cloth prepared in Examples 1-3 was tested for performance. The test results are shown in Table 1.
[0042] Table 1
[0043]
[0044] It can be seen from the above test results that the electronic-grade glass fiber cloth 1007 provided by the present invention has a light basis weight and a thin thickness, and is suitable for the needs of small and lightweight electronic devices. In addition, the electronic-grade glass fiber cloth 1007 still has good mechanical properties and can withstand large external tensile forces, which is sufficient to meet the strength requirements of its application scenarios. In printed circuit boards, it can better resist the mechanical stress during the processing process and the external forces that may be applied during use, ensure the structural integrity and stability of the circuit board, and facilitate the reliable operation of electronic equipment.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. An electronic grade glass fiber cloth 1007, characterized in that: It is woven with original yarn BC4500 as warp yarn and original yarn BC4500 as weft yarn.
2. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 1, characterized in that: The steps include: S1. The original yarn BC4500 is sized, and then the yarn is arranged and wound on the warp beam with uniform tension, and the sized warp beam is warped to obtain the weaving beam; S2. After the weaving shaft is threaded in sequence, the original yarn BC4500 is fed into the air jet loom as the warp and weft yarns for weaving, and different warp and weft densities are interwoven to form a glass fiber fabric; S3. Desizing and surface treating the glass fiber cloth to obtain electronic grade glass fiber cloth 1007.
3. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 2, characterized in that: In step S1, the specific steps of sizing treatment are: placing the original yarn BC450 on the warping frame in sequence, pulling out the yarn head through the tensioner and placing it on the reed in sequence, passing the arranged yarn through the yarn guide disk and the sizing groove, and then passing through the drying wheel to complete the sizing process.
4. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 2, characterized in that: In the step S1, the slurry concentration used in the slurrying process is (12±0.5)%.
5. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 2, characterized in that: In step S2, the warp yarn density is (97±2) yarns / inch, and the weft yarn density is (96±2) yarns / inch.
6. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 2, characterized in that: The basis weight of the glass fiber grey cloth in step S2 is (8.4±1.5) g / m 2 .
7. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 2, characterized in that: The desizing in step S3 includes primary desizing and secondary desizing performed sequentially.
8. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 7, characterized in that: The primary desizing is performed by washing and desizing the grey cloth.
9. The method for preparing the electronic grade glass fiber cloth 1007 according to claim 8, characterized in that: The secondary desizing is performed by smoldering desizing at a furnace temperature of 400-420°C.
10. Application of the electronic-grade glass fiber cloth 1007 according to claim 1 in the field of copper-clad laminates and printed circuit boards.