Production process of glass fiber cloth for strong adhesive tape

Abstract

The invention relates to the technical field of glass fiber cloth production, in particular to a production process of glass fiber cloth for a strong adhesive tape, which comprises the following steps: S1, mixing and feeding warp yarns and weft yarns by adopting any one of EC8-47.5 yarns or EC9-50Tex yarns, and performing warping, slashing and weaving to form gray fabric; during use, the warp yarn and the weft yarn adopt any one of the EC8-47.5 yarn, the EC9-50Tex yarn and the mixed yarn of the EC8-47.5 yarn and the EC9-50Tex yarn, double-specification yarn is supported, the anti-risk capacity of a supply chain is conveniently improved, the mixed yarn is lubricated through silicone oil emulsion, and therefore the anti-risk capacity of the supply chain is improved. The preparation method has the advantages that the friction coefficient is reduced, hairiness is avoided, the weaving end breakage rate is reduced, the production efficiency is improved, impurities are effectively removed, the structural stability is improved, Na precipitation and microcrack generation are inhibited, the high insulation performance is guaranteed, and the preparation method is suitable for high-performance strong adhesive tapes and is high in strength, strong in interface bonding force and good in insulation performance.

Description

Technical Field

[0001] This invention relates to the field of glass fiber cloth production technology, and specifically to a production process for glass fiber cloth used in high-strength adhesive tape. Background Technology

[0002] Fiberglass cloth is a composite material woven from fiberglass yarn. It has properties such as high strength, high temperature resistance, good electrical insulation and chemical stability. Fiberglass cloth is used in strong adhesive tapes to manufacture industrial tapes with high strength and durability. It is used in applications that require high tensile strength and tear resistance, such as packaging, bundling and repair.

[0003] Patent publication number CN103741319A describes in its specification "a production process for insulating fiberglass cloth, including: both warp and weft yarns are EC8-47.5 fiberglass yarn; a warping process, in which the EC8-47.5 fiberglass yarn is placed sequentially on a warping frame; a sizing process; and a weaving process, using an air-jet loom, in which the sized warp beams are sequentially threaded through heddles, inserted into reeds, mounted on the beam, and woven in a plain weave, with a warp and weft density of 17.3 × 14.2". The yarn length is 2000 meters per roll, with a minimum length of 1000 cm. Post-processing steps include drying at 200℃, edge trimming, winding, inspection, and packaging. This process solves the production technology problem of high-grade insulating fiberglass cloth using EC8-47.5 fiberglass yarn. The yarn has a warp and weft density of 17.3×14.2 threads / cm, a thickness of 0.140mm, a unit area mass of 150g / m², a single fiber yarn diameter of 8µm, and a warp and weft yarn count of 47.5Tex. This process offers more efficient and refined manufacturing. The technology, characterized by its convenience, ease of production management, and ease of weaving, lays the foundation for producing high-grade insulating fiberglass cloth using ordinary equipment. While this technology reduces the variety of raw materials and management complexity by standardizing warp and weft yarns to EC8-47.5, allowing for the production of high-grade insulating cloth with ordinary equipment without the need for special looms, thus reducing enterprise upgrade costs, the uniform use of EC8-47.5 yarns leads to a single yarn specification. Production interruptions can occur when suppliers stop production or raw material prices fluctuate. Furthermore, the 8μm diameter of the fine yarns easily generates fuzz during warping and sizing due to friction, increasing the weaving breakage rate and affecting fabric smoothness. High-temperature treatment at 395±5℃ for 24 hours increases the amount of alkali leached from the glass fiber, reducing insulation performance. Excessive heat treatment can also cause microcracks, weakening mechanical strength. At a high-speed coating speed of 60m / min, the A-1128 coupling agent is prone to uneven atomization, resulting in poor local wetting of the fabric surface and affecting the subsequent bonding strength of the copper clad laminate.

[0004] In conclusion, developing a production process for high-strength adhesive tape made of fiberglass cloth remains a critical issue that urgently needs to be addressed in the field of fiberglass cloth production technology. Summary of the Invention

[0005] The purpose of this invention is to address the problems in existing technologies where the use of EC8-47.5 yarn for both warp and weft leads to a uniform yarn specification, resulting in production interruptions when suppliers stop production or raw material fluctuations occur. Furthermore, the 8μm diameter of the fine yarn easily generates fuzz during warping and sizing due to friction, increasing the breakage rate and affecting fabric smoothness. High-temperature treatment at 395±5℃ for 24 hours increases the alkali exudation from the glass fiber, reducing insulation performance. Excessive heat treatment can also cause microcracks, weakening mechanical strength. At a high-speed coating speed of 60m / min, the A-1128 coupling agent is prone to uneven atomization, leading to poor local wetting of the fabric surface and affecting the bonding strength of subsequent copper clad laminate lamination.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a production process for fiberglass cloth for strong adhesive tape, including the following steps: S1, the warp and weft yarns are made of any one of three raw materials: EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of the two, and then the fabric is formed by warping, sizing, and weaving. S2. Before warping, a selected yarn is lubricated using silicone oil emulsion, and the warping speed is set to 120m / min with a single yarn tension of 35-45CN. S3. The fabric is treated by a stepped firing process, with a heating curve of 300℃→350℃→380℃ and a total duration of 18h. S4. An ultrasonic atomization spraying system is used to coat the fabric surface after simmering with A-1128 coupling agent. The atomization particle size is set to ≤20μm, the coating speed is 35~45m / min, the nozzle pressure is 0.3MPa, and the nozzle spacing is 12±2cm.

[0007] Further, in step S1, the method for using any one of three raw materials—EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of both—for warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: The EC8-47.5 yarn has a single fiber diameter of 8μm and an alkali metal oxide content of ≤0.5%. The EC9-50Tex yarn has a single fiber diameter of 9μm. The warping process involves winding the selected yarns into a warp beam on a warping machine according to the designed warp arrangement. The sizing process uses a polyvinyl alcohol resin and polyacrylate compound sizing solution with a polyvinyl alcohol resin to polyacrylate ratio of 95:5 and a compound sizing solution concentration of 4.6%. The compound sizing solution is evenly coated onto the warp surface using a sizing machine, and the machine speed is set to 60m / min.

[0008] Further, in step S1, the method for using any one of three raw materials—EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of both—for warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: After sizing, the warp yarns are dried by an infrared device, so that the sizing film is fixed on the surface of the yarns. The dried warp yarns are then rolled back into a warp beam. The weaving is carried out using either an air-jet loom or a rapier loom. The weft yarns are matched with the warp yarns, and the weave structure is designed according to the fabric specifications. The fabric is woven to form a grey fabric, and the grey fabric is inspected and put into storage at the same time.

[0009] Further, in step S2, the method for lubricating the selected yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min, and the single yarn tension to 35-45CN, is as follows: The lubrication process uses a silicone oil emulsion with a friction coefficient of ≤0.15. The lubrication device employs a spraying system to coat the yarn. When the yarn is guided by the nozzle, the nozzle evenly sprays the silicone oil emulsion onto the yarn surface.

[0010] Further, in step S2, the method for lubricating the selected yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min, and the single yarn tension to 35-45CN, is as follows: The warping speed is 120m / min, and the single yarn tension is 35-45CN. It is applied to the tension adaptive control system to ensure that the tension of each yarn path is consistent. After the warping is completed, a uniform warp beam is formed. The lubricated yarn is randomly sampled for friction coefficient testing, and the smoothness, flexibility and winding uniformity of the yarn surface are observed to confirm that there is no adhesion, knots or breakage.

[0011] Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: The fabric is pretreated to remove dust and impurities from its surface. The fabric is then cut into rolls or sheets that match the internal dimensions of the oven and marked with batch numbers. A high-temperature oven with precise temperature control and program segment setting capabilities is selected. A ventilation system is installed, and the oven body sealing and temperature sensor calibration are checked.

[0012] Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: When the temperature rises slowly to 300℃, it is held for 2 hours; when the temperature rises to 350℃, it is held for 3 hours; when the temperature rises to 380℃, it is held for 13 hours. After the curing is completed, the furnace door is kept closed, and the furnace is slowly cooled to room temperature by natural cooling. The cooling cycle can be set to 4 to 6 hours. Process tracking data such as furnace exit time, processing batch, and temperature rise log are recorded. From the fabric surface after the stepped curing, fabric samples are randomly selected and examined by scanning electron microscopy. The results show that the Na⁺ precipitation content of the fabric surface is ≤0.08%, and the microcrack density is ≤2 cracks / mm².

[0013] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the cloth is heated, it is inspected. If dust or contamination is found, it is cleaned with a lint-free cloth and compressed air. The A-1128 coupling agent is diluted and prepared according to the product instructions and filtered once to remove particulate impurities.

[0014] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. The coating equipment adopts an ultrasonic atomization spraying system, which is equipped with constant pressure liquid supply, ultrasonic atomizer, and linear moving nozzle platform. The atomization particle size of the ultrasonic atomization spraying system is set to ≤20μm, coating speed to 45m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. The smoldering fabric is conveyed by an automatic tensioning conveyor platform.

[0015] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the fabric is coated with the coupling agent, it is dried with the help of a hot air system. Then, a contact angle tester is used to measure the static contact angle of the fabric with water droplets after the coupling agent is coated. The contact angle of the fabric after coating is required to be ≤30°. The treated fabric is laminated with copper foil to form a plate, and a 180° peel test is performed according to the standard. The peel strength is required to be ≥1.2N / mm.

[0016] Beneficial effects Compared with known public technologies, the technical solution provided by this invention has the following beneficial effects: In use, this invention allows for the use of any one of three raw materials for both warp and weft yarns: EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of both. It supports dual-specification yarns, which helps improve the resilience of the supply chain. The mixed yarn is lubricated with silicone oil emulsion to reduce the coefficient of friction, prevent fuzzing, reduce weaving breakage, and improve production efficiency. The stepped sintering process effectively removes impurities, improves structural stability, inhibits Na⁺ precipitation and microcrack formation, and ensures high insulation performance. It is suitable for high-performance, high-strength tapes, with high strength, strong interfacial bonding, and good insulation performance. Attached Figure Description

[0017] Figure 1 This is a flowchart of a production process for a glass fiber cloth used in high-strength adhesive tape according to the present invention. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but includes other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1: like Figure 1 As shown, the present invention provides a production process for glass fiber cloth for strong adhesive tape, including the following steps: S1, the warp and weft yarns are made of EC8-47.5 yarn, and then the fabric is formed by warping, sizing and weaving; Further, in step S1, the method for using EC8-47.5 yarn for both warp and weft yarns, and then forming the greige fabric through warping, sizing, and weaving, is as follows: The EC8-47.5 yarn has a single fiber diameter of 8μm and an alkali metal oxide content of ≤0.5%. The warping process involves winding the selected EC8-47.5 yarn into a warp beam on a warping machine according to the designed warp yarn arrangement. The sizing process uses a polyvinyl alcohol resin and polyacrylate compound sizing solution with a polyvinyl alcohol resin to polyacrylate ratio of 95:5 and a compound sizing solution concentration of 4.6%. The compound sizing solution is evenly coated onto the warp yarn surface using a sizing machine, and the machine speed is set to 60m / min.

[0021] Furthermore, in step S1, the method for using EC8-47.5 yarn for both warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: After sizing, the warp yarns are dried by an infrared device, so that the sizing film is fixed on the surface of the yarns. The dried warp yarns are then rolled back into a warp beam. The weaving is carried out using either an air-jet loom or a rapier loom. The weft yarns are matched with the warp yarns, and the weave structure is designed according to the fabric specifications. The fabric is woven to form a grey fabric, and the grey fabric is inspected and put into storage at the same time.

[0022] S2. Before warping, the EC8-47.5 yarn is lubricated using silicone oil emulsion, and the warping speed is set to 120m / min with a single yarn tension of 35CN. Further, in step S2, the method for lubricating the EC8-47.5 yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min and the single yarn tension to 35CN, is as follows: The lubrication process uses a silicone oil emulsion with a friction coefficient of ≤0.15. The lubrication device employs a spraying system to coat the yarn. When the yarn is guided by the nozzle, the nozzle evenly sprays the silicone oil emulsion onto the yarn surface.

[0023] Further, in step S2, the method for lubricating the EC8-47.5 yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min and the single yarn tension to 35CN, is as follows: The warping speed is 120m / min, and the single yarn tension is 35CN. It is applied to the tension adaptive control system to ensure that the tension of each yarn path is consistent. After the warping is completed, a uniform warp beam is formed. The lubricated yarn is randomly sampled for friction coefficient testing, and the smoothness, flexibility and winding uniformity of the yarn surface are observed to confirm that there is no adhesion, knots or breakage.

[0024] S3. The fabric is treated by a stepped firing process, with a heating curve of 300℃→350℃→380℃ and a total duration of 18h. Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: The fabric is pretreated to remove dust and impurities from its surface. The fabric is then cut into rolls or sheets that match the internal dimensions of the oven and marked with batch numbers. A high-temperature oven with precise temperature control and program segment setting capabilities is selected. A ventilation system is installed, and the oven body sealing and temperature sensor calibration are checked.

[0025] Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: When the temperature rises slowly to 300℃, it is held for 2 hours; when the temperature rises to 350℃, it is held for 3 hours; when the temperature rises to 380℃, it is held for 13 hours. After the curing is completed, the furnace door is kept closed, and the furnace is slowly cooled to room temperature by natural cooling. The cooling cycle can be set to 4 to 6 hours. Process tracking data such as furnace exit time, processing batch, and temperature rise log are recorded. From the fabric surface after the stepped curing, fabric samples are randomly selected and examined by scanning electron microscopy. The results show that the Na⁺ precipitation content of the fabric surface is ≤0.08%, and the microcrack density is ≤2 cracks / mm².

[0026] S4. An ultrasonic atomization spraying system was used to coat the fabric surface after simmering with A-1128 coupling agent. The atomization particle size was set to ≤20μm, the coating speed to 45m / min, the nozzle pressure to 0.3MPa, and the nozzle spacing to 12±2cm. Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤ 20 μm, coating speed 35 m / min, nozzle pressure 0.3 MPa, and nozzle spacing 12 ± 2 cm. After the cloth is heated, it is inspected. If dust or contamination is found, it is cleaned with a lint-free cloth and compressed air. The A-1128 coupling agent is diluted and prepared according to the product instructions and filtered once to remove particulate impurities.

[0027] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤ 20 μm, coating speed 35 m / min, nozzle pressure 0.3 MPa, and nozzle spacing 12 ± 2 cm. The coating equipment adopts an ultrasonic atomization spraying system, which is equipped with constant pressure liquid supply, ultrasonic atomizer, and linear moving nozzle platform. The atomization particle size of the ultrasonic atomization spraying system is set to ≤20μm, coating speed to 35m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. The smoldering fabric is conveyed by an automatic tensioning conveyor platform.

[0028] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤ 20 μm, coating speed 35 m / min, nozzle pressure 0.3 MPa, and nozzle spacing 12 ± 2 cm. After the fabric is coated with the coupling agent, it is dried with the help of a hot air system. Then, a contact angle tester is used to measure the static contact angle of the fabric with water droplets after the coupling agent is coated. The contact angle of the fabric after coating is required to be ≤30°. The treated fabric is laminated with copper foil to form a plate, and a 180° peel test is performed according to the standard. The peel strength is required to be ≥1.2N / mm.

[0029] In this embodiment, EC8-47.5 glass fiber yarn is used, with a single yarn tension of 35CN during warping. A tension adaptive control system is applied to ensure warping consistency. The ultrasonic atomization spraying system is set with an atomization particle size ≤20μm and a coating speed of 35m / min. A-1128 coupling agent is used for coating, which significantly improves the interfacial bonding performance between the glass fiber cloth and the copper foil. The final peel strength is ≥1.2N / mm, which is convenient for meeting the requirements of strong adhesive tape. The atomization particle size ≤20μm achieves high uniformity and high stability of coating formation, improving product consistency.

[0030] Example 2: like Figure 1 As shown, the present invention provides a production process for glass fiber cloth for strong adhesive tape, including the following steps: S1, the warp and weft yarns are made of EC9-50Tex yarn, and then the fabric is formed by warping, sizing and weaving. Further, in step S1, the method for using EC9-50Tex yarn for both warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: The EC9-50Tex yarn has a single fiber diameter of 9μm and an alkali metal oxide content of ≤0.4%. The warping process involves winding the selected EC9-50Tex yarn into a warp beam on a warping machine according to the designed warp yarn arrangement. The sizing process uses a polyvinyl alcohol resin and polyacrylate compound sizing solution with a polyvinyl alcohol resin to polyacrylate ratio of 95:5 and a compound sizing solution concentration of 4.6%. The compound sizing solution is evenly coated onto the warp yarn surface using a sizing machine, and the machine speed is set to 60m / min.

[0031] Furthermore, in step S1, the method for using EC9-50Tex yarn for both warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: After sizing, the warp yarns are dried by an infrared device, so that the sizing film is fixed on the surface of the yarns. The dried warp yarns are then rolled back into a warp beam. The weaving is carried out using either an air-jet loom or a rapier loom. The weft yarns are matched with the warp yarns, and the weave structure is designed according to the fabric specifications. The fabric is woven to form a grey fabric, and the grey fabric is inspected and put into storage at the same time.

[0032] S2. Before warping, the EC9-50Tex yarn is lubricated using silicone oil emulsion, and the warping speed is set to 120m / min with a single yarn tension of 40CN. Further, in step S2, the method for lubricating the EC9-50Tex yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min and the single yarn tension to 40CN, is as follows: The lubrication treatment uses silicone oil emulsion with a friction coefficient of ≤0.13. The lubrication device uses a spraying system to coat the yarn. When the yarn is guided by the nozzle, the nozzle evenly sprays the silicone oil emulsion onto the yarn surface.

[0033] Further, in step S2, the method for lubricating the EC9-50Tex yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min and the single yarn tension to 40CN, is as follows: The warping speed is 120m / min, and the single yarn tension is 40CN. It is applied to the tension adaptive control system to ensure that the tension of each yarn path is consistent. After the warping is completed, a uniform warp beam is formed. The friction coefficient of the lubricated yarn is tested by random sampling, and the smoothness, flexibility and winding uniformity of the yarn surface are observed to confirm that there is no adhesion, knots or breakage.

[0034] S3. The fabric is treated by a stepped firing process, with a heating curve of 300℃→350℃→380℃ and a total duration of 18h. Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: The fabric is pretreated to remove dust and impurities from its surface. The fabric is then cut into rolls or sheets that match the internal dimensions of the oven and marked with batch numbers. A high-temperature oven with precise temperature control and program segment setting capabilities is selected. A ventilation system is installed, and the oven body sealing and temperature sensor calibration are checked.

[0035] Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: When the temperature rises slowly to 300℃, it is held for 2 hours; when the temperature rises to 350℃, it is held for 3 hours; when the temperature rises to 380℃, it is held for 13 hours. After the curing is completed, the furnace door is kept closed, and the furnace is slowly cooled to room temperature by natural cooling. The cooling cycle can be set to 4 to 6 hours. Process tracking data such as furnace exit time, processing batch, and temperature rise log are recorded. From the fabric surface after the stepped curing, fabric samples are randomly selected and examined by scanning electron microscopy. The results show that the Na⁺ precipitation content of the fabric surface is ≤0.08%, and the microcrack density is ≤2 cracks / mm².

[0036] S4. An ultrasonic atomization spraying system was used to coat the fabric surface after simmering with A-1128 coupling agent, with the atomization particle size set to ≤18μm, coating speed to 40m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤18μm, coating speed 40m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the cloth is heated, it is inspected. If dust or contamination is found, it is cleaned with a lint-free cloth and compressed air. The A-1128 coupling agent is diluted and prepared according to the product instructions and filtered once to remove particulate impurities.

[0037] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤18μm, coating speed 40m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. The coating equipment adopts an ultrasonic atomization spraying system, which is equipped with constant pressure liquid supply, ultrasonic atomizer, and linear moving nozzle platform. The atomization particle size of the ultrasonic atomization spraying system is set to ≤18μm, coating speed to 40m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. The smoldering fabric is conveyed by an automatic tensioning conveyor platform.

[0038] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤18μm, coating speed 40m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the fabric is coated with the coupling agent, it is dried with the help of a hot air system. Then, a contact angle tester is used to measure the static contact angle of the fabric with water droplets after the coupling agent is coated. The contact angle of the fabric after coating is required to be ≤30°. The treated fabric is laminated with copper foil to form a plate, and a 180° peel test is performed according to the standard. The peel strength is required to be ≥1.2N / mm.

[0039] In this embodiment, EC9-50Tex yarn is used, with a warping parameter of 40CN per yarn tension. Combined with a tension adaptive system, the ultrasonic atomization spraying system is set with an atomization particle size of ≤18μm and a coating speed of 40m / min to improve the yarn's weavability and fabric quality. The heat treatment process is precisely controlled through multi-stage heat preservation to avoid the generation of microcracks. Each step of the process includes equipment settings, performance testing, and batch recording, which facilitates quality tracking and stable production.

[0040] Example 3: like Figure 1 As shown, the present invention provides a production process for glass fiber cloth for strong adhesive tape, including the following steps: S1, the warp and weft yarns are made of a mixture of EC8-47.5 yarn and EC9-50Tex yarn, and then the yarn is warped, sized and woven to form a greige fabric; Further, in step S1, the method for using a mixture of EC8-47.5 yarn and EC9-50Tex yarn for both warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: The EC8-47.5 yarn has a single fiber diameter of 8μm, and the EC9-50Tex yarn has a single fiber diameter of 9μm. The alkali metal oxide content is ≤0.5%. The warping process involves winding the selected EC8-47.5 yarn into a warp beam on a warping machine according to the designed warp yarn arrangement. The sizing process uses a polyvinyl alcohol resin and polyacrylate compound sizing solution with a polyvinyl alcohol resin to polyacrylate ratio of 95:5 and a compound sizing solution concentration of 4.6%. The compound sizing solution is evenly coated onto the warp yarn surface using a sizing machine, and the machine speed is set to 60m / min.

[0041] Further, in step S1, the method for using a mixture of EC8-47.5 and EC9-50Tex yarns for both warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: After sizing, the warp yarns are dried by an infrared device, so that the sizing film is fixed on the surface of the yarns. The dried warp yarns are then rolled back into a warp beam. The weaving is carried out using either an air-jet loom or a rapier loom. The weft yarns are matched with the warp yarns, and the weave structure is designed according to the fabric specifications. The fabric is woven to form a grey fabric, and the grey fabric is inspected and put into storage at the same time.

[0042] S2. Before warping, the mixed yarn of EC8-47.5 yarn and EC9-50Tex yarn is lubricated using silicone oil emulsion, and the warping speed is set to 120m / min with a single yarn tension of 45CN. Further, in step S2, the method for lubricating the mixed yarn of EC8-47.5 yarn and EC9-50Tex yarn before warping, using silicone oil emulsion, and setting the warping speed to 120m / min and the single yarn tension to 45CN, is as follows: The lubrication process uses a silicone oil emulsion with a friction coefficient of ≤0.15. The lubrication device employs a spraying system to coat the yarn. When the yarn is guided by the nozzle, the nozzle evenly sprays the silicone oil emulsion onto the yarn surface.

[0043] Further, in step S2, the method for lubricating the mixed yarn of EC8-47.5 yarn and EC9-50Tex yarn before warping, using silicone oil emulsion, and setting the warping speed to 120m / min and the single yarn tension to 45CN, is as follows: The warping speed is 120m / min, and the single yarn tension is 45CN. It is applied to the tension adaptive control system to ensure that the tension of each yarn path is consistent. After the warping is completed, a uniform warp beam is formed. The friction coefficient of the lubricated yarn is tested by random sampling, and the smoothness, flexibility and winding uniformity of the yarn surface are observed to confirm that there is no adhesion, knots or breakage.

[0044] S3. The fabric is treated by a stepped firing process, with a heating curve of 300℃→350℃→380℃ and a total duration of 18h. Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: The fabric is pretreated to remove dust and impurities from its surface. The fabric is then cut into rolls or sheets that match the internal dimensions of the oven and marked with batch numbers. A high-temperature oven with precise temperature control and program segment setting capabilities is selected. A ventilation system is installed, and the oven body sealing and temperature sensor calibration are checked.

[0045] Further, in step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours, as follows: When the temperature rises slowly to 300℃, it is held for 2 hours; when the temperature rises to 350℃, it is held for 3 hours; when the temperature rises to 380℃, it is held for 13 hours. After the curing is completed, the furnace door is kept closed, and the furnace is slowly cooled to room temperature by natural cooling. The cooling cycle can be set to 4 to 6 hours. Process tracking data such as furnace exit time, processing batch, and temperature rise log are recorded. From the fabric surface after the stepped curing, fabric samples are randomly selected and examined by scanning electron microscopy. The results show that the Na⁺ precipitation content of the fabric surface is ≤0.08%, and the microcrack density is ≤2 cracks / mm².

[0046] S4. An ultrasonic atomization spraying system was used to coat the fabric surface after simmering with A-1128 coupling agent. The atomization particle size was set to ≤16μm, the coating speed to 45m / min, the nozzle pressure to 0.3MPa, and the nozzle spacing to 12±2cm. Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤16μm, coating speed 45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the cloth is heated, it is inspected. If dust or contamination is found, it is cleaned with a lint-free cloth and compressed air. The A-1128 coupling agent is diluted and prepared according to the product instructions and filtered once to remove particulate impurities.

[0047] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤16μm, coating speed 45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. The coating equipment adopts an ultrasonic atomization spraying system, which is equipped with constant pressure liquid supply, ultrasonic atomizer, and linear moving nozzle platform. The atomization particle size of the ultrasonic atomization spraying system is set to ≤16μm, coating speed to 45m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. The smoldering fabric is conveyed by an automatic tensioning conveyor platform.

[0048] Further, in step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤16μm, coating speed 45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the fabric is coated with the coupling agent, it is dried with the help of a hot air system. Then, a contact angle tester is used to measure the static contact angle of the fabric with water droplets after the coupling agent is coated. The contact angle of the fabric after coating is required to be ≤30°. The treated fabric is laminated with copper foil to form a plate, and a 180° peel test is performed according to the standard. The peel strength is required to be ≥1.2N / mm.

[0049] In this embodiment, a blend of EC8-47.5 and EC9-50Tex yarns is used, incorporating fibers of different diameters to improve the fabric's mechanical properties and flexibility. The blended yarns are lubricated with silicone oil emulsion to reduce the coefficient of friction, prevent fuzzing, decrease weaving breakage, and improve production efficiency. A stepped sintering process effectively removes impurities, enhances structural stability, inhibits Na⁺ precipitation and microcrack formation, and ensures high insulation performance. This method is suitable for high-performance, high-strength adhesive tapes, exhibiting high strength, strong interfacial adhesion, and excellent insulation properties.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A manufacturing process for fiberglass cloth used in high-strength adhesive tape, characterized in that, Includes the following steps: S1. The warp and weft yarns are made of any one of the following three raw materials: EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of the two. The yarn is then warped, sized, and woven to form the greige fabric. S2. Before warping, a selected yarn is lubricated using silicone oil emulsion, and the warping speed is set to 120m / min with a single yarn tension of 35-45CN. S3. The fabric is treated by a stepped firing process, with a heating curve of 300℃→350℃→380℃ and a total duration of 18h. S4. An ultrasonic atomization spraying system is used to coat the fabric surface after simmering with A-1128 coupling agent. The atomization particle size is set to ≤20μm, the coating speed is 35~45m / min, the nozzle pressure is 0.3MPa, and the nozzle spacing is 12±2cm.

2. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 1, characterized in that, In step S1, the method for using any one of three raw materials—EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of both—for warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: The EC8-47.5 yarn has a single fiber diameter of 8μm and an alkali metal oxide content of ≤0.5%. The EC9-50Tex yarn has a single fiber diameter of 9μm. The warping process involves winding the selected yarns into a warp beam on a warping machine according to the designed warp arrangement. The sizing process uses a polyvinyl alcohol resin and polyacrylate compound sizing solution with a polyvinyl alcohol resin to polyacrylate ratio of 95:5 and a compound sizing solution concentration of 4.6%. The compound sizing solution is evenly coated onto the warp surface using a sizing machine, and the machine speed is set to 60m / min.

3. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 2, characterized in that, In step S1, the method for using any one of three raw materials—EC8-47.5 yarn, EC9-50Tex yarn, and a mixture of both—for warp and weft yarns, followed by warping, sizing, and weaving to form the grey fabric, is as follows: After sizing, the warp yarns are dried by an infrared device, so that the sizing film is fixed on the surface of the yarns. The dried warp yarns are then rolled back into a warp beam. The weaving is carried out using either an air-jet loom or a rapier loom. The weft yarns are matched with the warp yarns, and the weave structure is designed according to the fabric specifications. The fabric is woven to form a grey fabric, and the grey fabric is inspected and put into storage at the same time.

4. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 3, characterized in that, In step S2, the method for lubricating the selected yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min, and the single yarn tension to 35-45CN, is as follows: The lubrication process uses a silicone oil emulsion with a friction coefficient of ≤0.

15. The lubrication device employs a spraying system to coat the yarn. When the yarn is guided by the nozzle, the nozzle evenly sprays the silicone oil emulsion onto the yarn surface.

5. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 4, characterized in that, In step S2, the method for lubricating the selected yarn before warping using silicone oil emulsion, setting the warping speed to 120m / min, and the single yarn tension to 35-45CN, is as follows: The warping speed is 120m / min, and the single yarn tension is 35-45CN. It is applied to the tension adaptive control system to ensure that the tension of each yarn path is consistent. After the warping is completed, a uniform warp beam is formed. The lubricated yarn is randomly sampled for friction coefficient testing, and the smoothness, flexibility and winding uniformity of the yarn surface are observed to confirm that there is no adhesion, knots or breakage.

6. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 5, characterized in that, In step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours. The fabric is pretreated to remove dust and impurities from its surface. The fabric is then cut into rolls or sheets that match the internal dimensions of the oven and marked with batch numbers. A high-temperature oven with precise temperature control and program segment setting capabilities is selected. A ventilation system is installed, and the oven body sealing and temperature sensor calibration are checked.

7. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 6, characterized in that, In step S3, the fabric undergoes a stepped firing process, with the heating curve set as 300℃→350℃→380℃, for a total duration of 18 hours. When the temperature rises slowly to 300℃, it is held for 2 hours; when the temperature rises to 350℃, it is held for 3 hours; when the temperature rises to 380℃, it is held for 13 hours. After the curing is completed, the furnace door is kept closed, and the furnace is slowly cooled to room temperature by natural cooling. The cooling cycle can be set to 4 to 6 hours. Process tracking data such as furnace exit time, processing batch, and temperature rise log are recorded. From the fabric surface after the stepped curing, fabric samples are randomly selected and examined by scanning electron microscopy. The results show that the Na⁺ precipitation content of the fabric surface is ≤0.08%, and the microcrack density is ≤2 cracks / mm².

8. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 7, characterized in that, In step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the cloth is heated, it is inspected. If dust or contamination is found, it is cleaned with a lint-free cloth and compressed air. The A-1128 coupling agent is diluted and prepared according to the product instructions and filtered once to remove particulate impurities.

9. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 8, characterized in that, In step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. The coating equipment adopts an ultrasonic atomization spraying system, which is equipped with constant pressure liquid supply, ultrasonic atomizer, and linear moving nozzle platform. The atomization particle size of the ultrasonic atomization spraying system is set to ≤20μm, coating speed to 45m / min, nozzle pressure to 0.3MPa, and nozzle spacing to 12±2cm. The smoldering fabric is conveyed by an automatic tensioning conveyor platform.

10. The manufacturing process of fiberglass cloth for high-strength adhesive tape according to claim 8, characterized in that, In step S4, an ultrasonic atomization spraying system is used to coat the fabric surface after smoldering with A-1128 coupling agent. The method is as follows: atomization particle size ≤20μm, coating speed 35~45m / min, nozzle pressure 0.3MPa, and nozzle spacing 12±2cm. After the fabric is coated with the coupling agent, it is dried with the help of a hot air system. Then, a contact angle tester is used to measure the static contact angle of the fabric with water droplets after the coupling agent is coated. The contact angle of the fabric after coating is required to be ≤30°. The treated fabric is laminated with copper foil to form a plate, and a 180° peel test is performed according to the standard. The peel strength is required to be ≥1.2N / mm.

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