Electronic cloth preparation method and 7628 electronic cloth

Abstract

Disclosed in the present application are an electronic cloth preparation method and 7628 electronic cloth. The method comprises: sequentially carrying out a yarn arrangement operation, a sizing operation, a winding operation, a warping operation and a beaming operation on a highly-split electronic yarn to obtain a warp beam, the linear density range of the highly-split electronic yarn being 72-95 tex; using a loom to weave from the warp beam in a plain weave structure so as to obtain intermediate cloth; and sequentially carrying out pre-desizing treatment, thermal desizing treatment, surface chemical treatment and splitting treatment on the intermediate cloth to obtain 7628 electronic cloth, the warp density value range of the 7628 electronic cloth being 30.5-43.0 ends / inch, and the weft density value range of the 7628 electronic cloth being 25.4-31.0 ends / inch.

Description

Electronic cloth preparation method and 7628 electronic cloth

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 20, 2023, with application number "202311221477.8" and application name "Method for preparing electronic cloth and 7628 electronic cloth", all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of textiles, and in particular to a method for preparing electronic cloth and 7628 electronic cloth. Background Art

[0003] Existing 7628 electronic cloth is typically woven using G75 or G37 electronic yarn. However, 7628 electronic cloth woven with G75 electronic yarn has high production costs and low weaving efficiency. Furthermore, 7628 electronic cloth woven with G37 electronic yarn has too low a warp and weft density, resulting in easy deformation and poor dimensional stability. Furthermore, 7628 electronic cloth woven with G37 electronic yarn also suffers from a sparse yarn arrangement in the warp and weft directions, with large gaps between adjacent yarns, resulting in excessive air permeability and other physical properties of the electronic cloth.

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far.

[0005] Summary of the Invention

[0006] The present application provides a method for preparing an electronic cloth and a 7628 electronic cloth, so as to at least solve the technical problem that the weaving efficiency of the 7628 electronic cloth is low and the performance of the produced 7628 electronic cloth is poor due to the inability in the prior art to reduce the production cost while ensuring that the quality of the 7628 electronic cloth meets the requirements.

[0007] According to one aspect of the present application, a method for preparing an electronic cloth is provided, comprising: sequentially performing a yarn arrangement operation, a sizing operation, a winding operation, a warp operation, and a take-up operation on a high-spread electronic yarn to obtain a weaving shaft, wherein the linear density of the high-spread electronic yarn is in the range of 72-95 tex; weaving the weaving shaft with a plain weave structure using a loom to obtain an intermediate cloth; sequentially performing a pre-desizing treatment, a thermal desizing treatment, a surface chemical treatment, and a fiber-opening treatment on the intermediate cloth to obtain a 7628 electronic cloth, wherein the warp density of the 7628 electronic cloth is in the range of 30.5-43.0 ends / inch, the weft density of the 7628 electronic cloth is in the range of 25.4-31.0 ends / inch, and the basis weight of the electronic cloth is in the range of 207-213 g / m2.

[0008] Optionally, before the step of sequentially performing yarn arrangement operation, sizing operation, winding operation, and winding operation on the high-fiber-open electronic yarn to obtain a weaving shaft, the method for preparing electronic cloth further includes: twisting the high-fiber-open electronic raw yarn to obtain the high-fiber-open electronic yarn, wherein the twist value range of the high-fiber-open electronic yarn obtained after the twisting treatment is 15-30 twists, and the linear density range of the high-fiber-open electronic yarn raw yarn is 72-95tex.

[0009] Optionally, the step of twisting the high-fiber-opening electronic yarn to obtain the high-fiber-opening electronic yarn includes: twisting the high-fiber-opening electronic yarn in a first preset temperature range and a preset humidity range, wherein the first preset temperature range is 25-35°C and the preset humidity range is 40-50%.

[0010] Optionally, after the sizing operation is performed on the high-fiber-opening electronic yarn, the winding tension of the high-fiber-opening electronic yarn is in the range of 850-950N; after the winding operation is performed on the high-fiber-opening electronic yarn, the winding tension of the high-fiber-opening electronic yarn is in the range of 4000-5000N.

[0011] Optionally, the step of pre-desizing the intermediate fabric includes: allowing the intermediate fabric to pass through a first high-temperature furnace zone and a second high-temperature furnace zone at a preset linear speed, thereby completing the pre-desizing of the intermediate fabric, wherein the preset linear speed has a value range of 95-105 m / min, the temperature of the first high-temperature furnace zone has a value range of 420-440° C., and the temperature of the second high-temperature furnace zone has a value range of 440-460° C.

[0012] Optionally, the step of performing thermal desizing treatment on the intermediate fabric includes: performing a first insulation treatment on the intermediate fabric that has undergone the pre-desizing treatment in a first insulation temperature range, wherein the first insulation temperature range is 150-200° C., and the insulation time of the first insulation treatment ranges from 2 to 3 hours; performing a second insulation treatment on the intermediate fabric that has undergone the first insulation treatment in a second insulation temperature range, wherein the second insulation temperature range is 220-260° C., and the insulation time of the second insulation treatment ranges from 5 to 6 hours; and performing a third insulation treatment on the intermediate fabric that has undergone the second insulation treatment in a third insulation temperature range, wherein the third insulation temperature range is 390-410° C., and the insulation time of the third insulation treatment ranges from 50 to 53 hours.

[0013] Optionally, the step of performing a surface chemical treatment on the intermediate fabric includes: immersing the intermediate fabric that has completed the thermal desizing treatment in a prefabricated silane coupling agent, thereby completing the surface chemical treatment of the intermediate fabric, wherein the solid content of the prefabricated silane coupling agent is in the range of 0.10%-0.45%, and during the process of performing the surface chemical treatment on the intermediate fabric, the pH value of the prefabricated silane coupling agent is in the range of 2.0-5.0.

[0014] Optionally, the step of performing fiber opening treatment on the intermediate fabric includes: passing the intermediate fabric that has completed surface chemical treatment through a high-pressure water jet, thereby completing the fiber opening treatment of the intermediate fabric to obtain 7628 electronic cloth, wherein the pressure range of the high-pressure water jet is 0.5-4.0MPa, the nozzle aperture range of the high-pressure water jet is 0.1-0.2mm, and the water conductivity of the high-pressure water jet does not exceed 10μs / cm.

[0015] According to another aspect of the present application, a 7628 electronic cloth is also provided, which is obtained by interweaving multiple groups of high-fiber-open electronic yarns arranged in the warp direction and multiple groups of high-fiber-open electronic yarns arranged in the weft direction, wherein the warp density of the electronic cloth is in the range of 30.5-43.0 ends / inch, the weft density of the electronic cloth is in the range of 25.4-31.0 ends / inch, the basis weight of the electronic cloth is in the range of 207-213 g / ㎡, and the thickness of the electronic cloth is in the range of 165-180 μm.

[0016] Optionally, the 7628 electronic cloth is obtained by interlacing and weaving multiple groups of high-fiber-opening electronic yarns arranged in the warp direction and multiple groups of high-fiber-opening electronic yarns arranged in the weft direction according to a plain weave structure.

[0017] Optionally, the linear density of the high-fiber-opening electronic yarn is in the range of 72-95 tex, and the twist of the high-fiber-opening electronic yarn is in the range of 15-30 twists.

[0018] In the present application, a high-fiber-opening electronic yarn is subjected to a yarn arrangement operation, a sizing operation, a winding operation, a warp operation, and a take-up operation in sequence to obtain a weaving shaft, wherein the linear density of the high-fiber-opening electronic yarn is in the range of 72-95 tex; a loom is used to weave the weaving shaft with a plain weave structure to obtain an intermediate fabric; the intermediate fabric is subjected to a pre-desizing treatment, a thermal desizing treatment, a surface chemical treatment, and a fiber-opening treatment in sequence to obtain a 7628 electronic cloth, wherein the warp density of the 7628 electronic cloth is in the range of 30.5-43.0 ends / inch, and the weft density of the 7628 electronic cloth is in the range of 25.4-31.0 ends / inch. The basis weight of the electronic cloth is in the range of 207-213 g / m2. By adopting high-fiber-opening electronic yarn to prepare 7628 electronic cloth, the purpose of reducing the production cost of the 7628 electronic cloth while ensuring that the quality of the 7628 electronic cloth meets the requirements is achieved, thereby achieving the technical effect of improving the production efficiency and performance of the 7628 electronic cloth. The warp and weft width of the prepared electronic cloth is significantly improved, and the air permeability and impregnation properties are better, thereby solving the technical problem of low weaving efficiency of the 7628 electronic cloth and poor performance of the produced 7628 electronic cloth caused by the inability to reduce the production cost while ensuring that the quality of the 7628 electronic cloth meets the requirements in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] FIG1 is a schematic flow chart of a method for preparing an electronic cloth according to an embodiment of the present application;

[0021] FIG2 is a schematic structural diagram of a 7628 electronic cloth provided according to an embodiment of the present application;

[0022] FIG3 is a schematic structural diagram of a 7628 electronic cloth woven with G75 electronic yarn according to the prior art;

[0023] FIG4 is a schematic structural diagram of a 7628 electronic cloth woven with G37 electronic yarn according to the prior art. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In addition, in the embodiments provided in the present application, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions and positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as limiting the specific scope of protection of the present invention.

[0027] Electronic cloth is a general term for electronic-grade glass fiber cloth used in the electronics industry. Its primary application is in the manufacture of copper-clad laminates within the electronics industry. Among existing electronic cloths, 7628 electronic cloth is the most widely used.

[0028] Currently, existing 7628 electronic fabrics are mostly woven using G75 or G37 electronic yarn. The warp and weft density of 7628 electronic fabric woven with G75 electronic yarn is 44 x 33 ends / inch, with a basis weight of 210g / ㎡. The product quality meets practical needs. However, using G75 electronic yarn to weave 7628 electronic fabric is high in production cost, resulting in low weaving efficiency and low profits. On the other hand, 7628 electronic fabric woven with G37 electronic yarn has a warp and weft density of 22 x 17.1 ends / inch. While this improves production efficiency to a certain extent, 7628 electronic fabric woven with G37 electronic yarn is prone to deformation and has poor dimensional stability. Furthermore, due to the sparse yarn arrangement in the warp and weft directions, the gaps between adjacent yarns are large, resulting in excessive air permeability and other physical properties of the electronic fabric, making it difficult to meet application requirements.

[0029] In order to solve the above problems, relevant solutions are provided in the embodiments of the present application, which are described in detail below.

[0030] According to an embodiment of the present application, a method embodiment of an electronic cloth preparation method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0031] Under the above operating environment, an embodiment of the present application provides a method for preparing an electronic cloth, as shown in FIG1 , the method comprising the following steps:

[0032] Step S102, performing a yarn arrangement operation, a sizing operation, a winding operation, and a take-up operation on the high-fiber-opening electronic yarn in sequence to obtain a weaving beam, wherein the linear density of the high-fiber-opening electronic yarn ranges from 72 to 95 tex;

[0033] In the technical solution provided in step S102, the high-fiber-open electronic yarn is subjected to yarn arrangement operation, sizing operation, winding operation, and winding operation in sequence, and before the step of obtaining the weaving shaft, the electronic cloth preparation method also includes: twisting the high-fiber-open electronic raw yarn to obtain the high-fiber-open electronic yarn, wherein the twist value range of the high-fiber-open electronic yarn obtained after the twisting treatment is 15-30 twists, and the linear density range of the high-fiber-open electronic yarn raw yarn is 72-95tex.

[0034] Specifically, the twist of the high-spread electronic yarn obtained by twisting the high-spread electronic yarn in this embodiment can be any value within the above twist value range, such as 15 twists, 30 twists, or 20 twists. Similarly, the linear density of the high-spread electronic yarn and the high-spread electronic yarn raw yarn can be any value within the above linear density range, such as 72 tex, 95 tex, or 80 tex.

[0035] In some embodiments of the present application, the step of twisting the high-fiber-opening electronic yarn to obtain the high-fiber-opening electronic yarn includes: twisting the high-fiber-opening electronic yarn in a first preset temperature range and a preset humidity range, wherein the first preset temperature range is 25-35°C and the preset humidity range is 40-50%.

[0036] Specifically, during the twisting process, the ambient temperature during the twisting process may be any value within the first preset temperature range, such as 25° C., 35° C., or 30° C. The ambient humidity may be any value within the preset humidity range, such as 40%, 50%, or 45%.

[0037] As an optional embodiment, after the high-spreading electronic yarn is sizing, the winding tension of the high-spreading electronic yarn is in the range of 850-950 N, for example, 850 N, 950 N, or 900 N, as long as it is any value within the range of 850-950 N. After the high-spreading electronic yarn is sizing, the winding tension of the high-spreading electronic yarn is in the range of 4000-5000 N, for example, 4000 N, 5000 N, or 4500 N, as long as it is any value within the range of 4000-5000 N.

[0038] Step S104, using a loom to weave the weaving beam in a plain weave structure to obtain an intermediate fabric;

[0039] In the technical solution provided in step S104, the loom used may be an air jet loom. The step of weaving the weaving beam with a plain weave structure using the loom in step S104 is the step of beating the weaving beam with high-fiber electronic yarn.

[0040] Step S106: The intermediate fabric is sequentially subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment, and fiber opening treatment to obtain 7628 electronic cloth; wherein the warp density of the 7628 electronic cloth is in the range of 30.5-43.0 ends / inch, the weft density of the 7628 electronic cloth is in the range of 25.4-31.0 ends / inch, and the basis weight of the 7628 electronic cloth is in the range of 207-213 g / ㎡.

[0041] In the technical solution provided in step S106, the step of pre-desizing the intermediate fabric includes: passing the intermediate fabric through a first high-temperature furnace zone and a second high-temperature furnace zone at a preset linear velocity, thereby completing the pre-desizing of the intermediate fabric. The preset linear velocity ranges from 95 to 105 m / min, the temperature ranges from 420 to 440° C. in the first high-temperature furnace zone, and the temperature ranges from 440 to 460° C. in the second high-temperature furnace zone.

[0042] Specifically, during the pre-desizing process, the linear speed of the intermediate fabric can be any value within the aforementioned preset linear speed range, such as 85 m / min, 105 m / min, or 95 m / min. The temperatures of the first and second high-temperature furnace zones can also be any values ​​within the aforementioned corresponding temperature ranges, such as 420°C, 440°C, or 430°C for the first zone, and 440°C, 460°C, or 450°C for the second zone.

[0043] As an optional embodiment, the step of performing a thermal desizing treatment on the intermediate fabric includes: performing a first insulation treatment on the intermediate fabric that has undergone the pre-desizing treatment in a first insulation temperature range, wherein the first insulation temperature range is 150-200°C, and the insulation time of the first insulation treatment ranges from 2 to 3 hours. For example, the first insulation temperature can be 150°C, 200°C or 180°C, as long as it is any value within the range of 150-200°C, and the insulation time can be 2 hours, 3 hours or 2.5 hours, as long as it is any value within the range of 2-3 hours; performing a second insulation treatment on the intermediate fabric that has undergone the first insulation treatment in a second insulation temperature range, wherein the second insulation temperature range is 220-260°C, and the insulation time of the second insulation treatment ranges from 5 to 60 minutes. 6 hours, for example, the second insulation temperature can be 220° C., 260° C. or 250° C., as long as it is any value within the range of 220-260° C., and the second insulation time can be 5 hours, 6 hours or 5.5 hours, as long as it is any value within the range of 5-6 hours. In the third insulation temperature range, the intermediate fabric that has undergone the second insulation treatment is subjected to a third insulation treatment, wherein the third insulation temperature range is 390-410° C., and the insulation time of the third insulation treatment is in the range of 50-53 hours. For example, the third insulation temperature can be 390° C., 410° C. or 400° C., as long as it is any value within the range of 390-410° C., and the insulation time of the third insulation treatment can be 50 hours, 53 hours or 52 hours, as long as it is any value within the range of 50-53 hours.

[0044] In some embodiments of the present application, the step of performing a surface chemical treatment on the intermediate fabric includes: immersing the intermediate fabric that has undergone thermal desizing in a preformed silane coupling agent, thereby completing the surface chemical treatment of the intermediate fabric, wherein the solid content of the preformed silane coupling agent is in a range of 0.10% to 0.45%, and the pH value of the preformed silane coupling agent during the surface chemical treatment of the intermediate fabric is in a range of 2.0 to 5.0.

[0045] Specifically, during the surface chemical treatment of the intermediate fabric, the solid content of the preformed silane coupling agent can be 0.10%, 0.27%, 0.3%, 0.35%, 0.40%, or 0.45%, any value within the range of 0.10%-0.45%. Furthermore, during the surface chemical treatment, the pH of the preformed silane coupling agent can be controlled within the range of 2.0-5.0 by adding an acidic agent such as glacial acetic acid. For example, the pH value can be 2.0, 2.5, 3.0, 4.0, 4.5, or 5, any value within the range of 2.0-5.0.

[0046] As an optional implementation method, the step of performing fiber opening treatment on the intermediate fabric includes: passing the intermediate fabric that has completed surface chemical treatment through a high-pressure water jet, thereby completing the fiber opening treatment of the intermediate fabric to obtain 7628 electronic cloth, wherein the pressure range of the high-pressure water jet is 0.5-4.0MPa, the nozzle aperture range of the high-pressure water jet is 0.1-0.2mm, and the water conductivity of the high-pressure water jet does not exceed 10μs / cm.

[0047] Specifically, during the fiber opening process, the pressure of the high-pressure water jet can be any value within the aforementioned pressure range, such as 0.5 MPa, 4.0 MPa, or 3 MPa. The nozzle aperture of the high-pressure water jet can be any value within the aforementioned aperture range, such as 0.1 mm, 0.2 mm, or 0.15 mm.

[0048] Through the above steps, it is possible to use high-fiber electronic yarn as raw material to weave 7628 electronic cloth. This ensures that the basis weight of the 7628 electronic cloth meets the requirements while effectively reducing the warp and weft density during weaving, improving the weaving efficiency, and better meeting market and usage needs.

[0049] In addition, compared with the 7628 electronic cloth woven with conventional G75, the 7628 electronic cloth woven with high-fiber electronic yarn has a lower warp and weft density, so the yarn width can be further increased, which can fill the gap between adjacent yarns, reduce the thickness of the electronic cloth, and improve the physical properties of the electronic cloth.

[0050] Moreover, in the preparation method of the electronic cloth provided in the embodiment of the present application, by controlling the temperature, humidity and twist of the high-spreading raw yarn when twisting it into the high-spreading electronic yarn within a preset range, the twisted high-spreading electronic yarn can have good bundling properties, reduce the generation of yarn surface hairiness, and make the woven electronic cloth have a smooth and bright surface. By controlling the winding tension after sizing and the winding tension after warping within a preset range, the weaving shaft has good hardness while ensuring good flatness of the cloth surface and improving the uniformity of the cloth surface tension. By adopting a specific method of pre-desizing treatment and thermal desizing treatment, the sizing residue of the electronic cloth can be burned to a great extent, improving the permeability and compatibility between the surface treatment agent and the electronic cloth. Moreover, by adopting the surface treatment and fiber opening treatment of the present invention, the high-spreading electronic yarn in the electronic cloth is fully opened after fiber opening and fully contacted with the surface treatment agent, the thickness of the cloth surface is reduced, and the excess surface treatment agent will be removed by the high-pressure water flow, improving the uniformity of the subsequent bonding of the electronic cloth with the resin.

[0051] According to an embodiment of the present application, a 7628 electronic cloth is also provided. The 7628 electronic cloth is obtained by interweaving multiple groups of high-fiber electronic yarns arranged in the warp direction and multiple groups of high-fiber electronic yarns arranged in the weft direction. The warp density of the 7628 electronic cloth is in the range of 30.5-43.0 ends / inch, for example, 30.5 ends / inch, 43.0 ends / inch or 40 ends / inch, as long as it is any value within the range of 30.5-43.0 ends / inch; the weft density of the 7628 electronic cloth is in the range of 25.4-31.0 ends / inch, for example, 25.4 ends / inch. / inch, 31.0ends / inch or 28ends / inch, any value within the range of 25.4-31.0ends / inch is acceptable; the basis weight range of 7628 electronic cloth is 207-213g / ㎡, for example, it can be 207g / ㎡, 213g / ㎡ or 210g / ㎡, any value within the range of 207-213g / ㎡ is acceptable; and the thickness range of the electronic cloth is 165-180μm, for example, it can be 165μm, 180μm or 170μm, any value within the range of 165-180μm is acceptable.

[0052] As an optional embodiment, as shown in Figure 2, the 7628 electronic cloth is made by interweaving multiple sets of high-fiber electronic yarns arranged in the warp direction and multiple sets of high-fiber electronic yarns arranged in the weft direction according to a plain weave structure. In Figure 2, 1 represents the 7628 electronic cloth, 2 represents the warp yarn, and 3 represents the weft yarn.

[0053] In some embodiments of the present application, the linear density of the high-open-fiber electronic yarn is in the range of 72-95tex, for example, it can be 72tex, 95tex or 90tex, as long as it is any value within the range of 72-95tex; the twist of the high-open-fiber electronic yarn is 15-30 twists, for example, it can be 15 twists, 30 twists or 20 twists, as long as it is any value within the range of 15-30 twists.

[0054] In some embodiments of the present application, the provided 7628 electronic cloth can be provided in different sizes to meet the different needs of users. For example, the 7628 electronic cloth provided in the embodiments of the present application, which has a plain weave structure formed by interlacing multiple groups of warp and weft yarns, can be provided in the following different sizes:

[0055] Example 1: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 92 tex and a twist of 28. The warp density of the electronic cloth is 31.5 ends / inch, the weft density is 26.4 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 179 μm.

[0056] As an optional implementation method, the preparation process of the 7628 electronic cloth in the above embodiment 1 is as follows:

[0057] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 35° C. and the humidity to be 40%;

[0058] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 950N, and the taking-up tension of the intermediate product after warping is controlled to be 4500N;

[0059] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0060] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the first type 7628 electronic cloth mentioned above.

[0061] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 95 m / min. The high-temperature furnace zones consist of a first zone at 440°C and a second zone at 460°C. The thermal desizing treatment involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 200°C for 3 hours, the second stage at 260°C for 6 hours, and the third stage at 410°C for 53 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the silane coupling agent to adjust the pH to 2.0-5.0. The fiber opening process includes using a 4.0MPa high-pressure water jet to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2mm and the water flow conductivity is less than 10μs / cm.

[0062] Example 2: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 85 tex and a twist of 26. The warp density of the electronic cloth is 35.6 ends / inch, the weft density is 27.2 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 177 μm.

[0063] As an optional implementation method, the preparation process of the 7628 electronic cloth of the above embodiment 2 is as follows:

[0064] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 32° C. and the humidity to be 43%;

[0065] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 920N, and the taking-up tension of the intermediate product after warping is controlled to be 4350N;

[0066] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0067] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the above-mentioned second type 7628 electronic cloth.

[0068] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 95 m / min. The high-temperature furnace zones consist of a first zone at 440°C and a second zone at 460°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 185°C for 3 hours, the second stage at 245°C for 6 hours, and the third stage at 410°C for 53 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a 3.5MPa high-pressure water jet to open the intermediate fabric after surface chemical treatment, where the nozzle aperture is 0.2mm and the water flow conductivity is less than 10μs / cm.

[0069] Example 3: 7628 electronic cloth, the linear density of the high-opening electronic yarn is 85 tex, the twist is 26 twists, the warp density of the electronic cloth is 36.3 ends / inch, the weft density is 26.4 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 177 μm.

[0070] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 3 is as follows:

[0071] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 32° C. and the humidity to be 43%;

[0072] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 920N, and the taking-up tension of the intermediate product after warping is controlled to be 4350N;

[0073] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0074] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the third type 7628 electronic fabric mentioned above.

[0075] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 95 m / min. The high-temperature furnace zones consist of a first zone at 440°C and a second zone at 460°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 185°C for 3 hours, the second stage at 245°C for 6 hours, and the third stage at 410°C for 53 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a 3.5MPa high-pressure water jet to open the intermediate fabric after surface chemical treatment, where the nozzle aperture is 0.2mm and the water flow conductivity is less than 10μs / cm.

[0076] Example 4: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 78 tex and a twist of 25. The warp density of the electronic cloth is 39.4 ends / inch, the weft density is 29.0 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 175 μm.

[0077] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 4 is as follows:

[0078] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 28° C. and the humidity to be 46%;

[0079] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 890N, and the taking-up tension of the intermediate product after warping is controlled to be 4150N;

[0080] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0081] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the fourth type of 7628 electronic cloth mentioned above.

[0082] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 100 m / min. The high-temperature furnace zones consist of a first zone at 430°C and a second zone at 450°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 175°C for 2.5 hours, the second stage at 235°C for 5.5 hours, and the third stage at 400°C for 52 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a high-pressure water jet of 1.7 MPa to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2 mm and the water flow conductivity is less than 10 μs / cm.

[0083] Example 5: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 78 tex and a twist of 25. The warp density of the electronic cloth is 40.4 ends / inch, the weft density is 27.9 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 175 μm.

[0084] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 5 is as follows:

[0085] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 28° C. and the humidity to be 46%;

[0086] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 890N, and the taking-up tension of the intermediate product after warping is controlled to be 4150N;

[0087] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0088] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the fifth type 7628 electronic fabric.

[0089] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 100 m / min. The high-temperature furnace zones consist of a first zone at 430°C and a second zone at 450°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 175°C for 2.5 hours, the second stage at 235°C for 5.5 hours, and the third stage at 400°C for 52 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a high-pressure water jet of 1.7 MPa to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2 mm and the water flow conductivity is less than 10 μs / cm.

[0090] Example 6: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 75 tex and a twist of 22. The warp density of the electronic cloth is 41.1 ends / inch, the weft density is 30.0 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 173 μm.

[0091] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 6 is as follows:

[0092] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 26° C. and the humidity to be 48%;

[0093] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 870N, and the taking-up tension of the intermediate product after warping is controlled to be 4050N;

[0094] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0095] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the sixth type 7628 electronic fabric.

[0096] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 105 m / min. The high-temperature furnace zones consist of a first zone at 420°C and a second zone at 440°C. The thermal desizing treatment involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 155°C for 2 hours, the second stage at 225°C for 5 hours, and the third stage at 390°C for 50 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the silane coupling agent to adjust the pH to 2.0-5.0. The fiber opening process includes using a high-pressure water jet of 1.0 MPa to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2 mm and the water flow conductivity is less than 10 μs / cm.

[0097] Example 7: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 75 tex and a twist of 22. The warp density of the electronic cloth is 41.9 ends / inch, the weft density is 29.2 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 173 μm.

[0098] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 7 is as follows:

[0099] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 26° C. and the humidity to be 48%;

[0100] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 870N, and the taking-up tension of the intermediate product after warping is controlled to be 4050N;

[0101] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0102] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the seventh type 7628 electronic cloth mentioned above.

[0103] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 105 m / min. The high-temperature furnace zones consist of a first zone at 420°C and a second zone at 440°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 155°C for 3 hours, the second stage at 225°C for 6 hours, and the third stage at 390°C for 50 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a high-pressure water jet of 1.0 MPa to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2 mm and the water flow conductivity is less than 10 μs / cm.

[0104] Example 8: 7628 electronic cloth, the high-opening electronic yarn has a linear density of 73 tex and a twist of 18. The warp density of the electronic cloth is 42.4 ends / inch, the weft density is 30.5 ends / inch, the basis weight of the electronic cloth is 210 g / ㎡, and the thickness is 169 μm.

[0105] As an optional implementation method, the preparation process of the 7628 electronic cloth of Example 8 is as follows:

[0106] The first step is to select a high-fiber-opening electronic yarn and twist the high-fiber-opening electronic yarn on a twisting machine to obtain the high-fiber-opening electronic yarn; the temperature of the high-fiber-opening electronic yarn during twisting is controlled to be 25° C. and the humidity to be 50%;

[0107] In the second step, the high-fiber electronic yarn is arranged, sizing, winding, warping and taking-up to obtain a weaving beam, wherein the winding tension of the intermediate product after sizing is controlled to be 850N, and the taking-up tension of the intermediate product after warping is controlled to be 4000N;

[0108] In the third step, the weaving beam is fed into an air jet loom for weaving in a plain weave structure to produce the intermediate fabric;

[0109] In the fourth step, the intermediate fabric is subjected to pre-desizing treatment, thermal desizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain the eighth type 7628 electronic cloth mentioned above.

[0110] Specifically, the pre-desizing process involves passing the intermediate fabric through multiple high-temperature furnace zones at a constant line speed of 105 m / min. The high-temperature furnace zones consist of a first zone at 420°C and a second zone at 440°C. The thermal desizing process involves subjecting the pre-desizing intermediate fabric to a three-stage heat preservation process: the first stage at 150°C for 2 hours, the second stage at 220°C for 5 hours, and the third stage at 390°C for 50 hours. The surface chemical treatment process involves impregnating the desizing intermediate fabric with a silane coupling agent containing 0.10% to 0.45% solids. Glacial acetic acid is added to the agent to adjust the pH to 2.0 to 5.0. The fiber opening process includes using a 0.5MPa high-pressure water jet to open the intermediate fabric after surface chemical treatment, wherein the nozzle aperture is 0.2mm and the water flow conductivity is less than 10μs / cm.

[0111] Compared with the prior art, the 7628 electronic cloth and preparation method provided in the embodiment of the present application can effectively improve its production efficiency and reduce production costs while ensuring that the performance of the 7628 electronic cloth meets the requirements. Specifically, the 7628 electronic cloth woven with G37 electronic raw yarn in the prior art is shown in Figure 3, and its warp and weft density is 22×17.1ends / inch, and the basis weight is 210g / ㎡. It can be seen that the warp and weft density of the 7628 electronic cloth woven with G37 electronic raw yarn is low. Although the weaving efficiency is high, the dimensional stability of the produced 7628 electronic cloth is poor. At the same time, the yarn arrangement in the warp and weft directions is too sparse, resulting in the electronic cloth's physical properties such as air permeability exceeding the standard.

[0112] Compared to 7628 electronic cloth made with G75 yarn, the 7628 electronic cloth woven with G75 yarn, as shown in Figure 4, has a warp and weft density of 44×33 ends / inch and a basis weight of 210g g / ㎡. Although the quality of the 7628 electronic cloth made with G75 yarn meets the requirements, its production efficiency is too low. In this application, the 7628 electronic cloth weaved with high-fiber-opening electronic yarn can effectively improve production efficiency while ensuring that the quality of the woven 7628 electronic cloth meets the requirements.

[0113] In summary, the basic parameters of various electronic cloths provided in the embodiments of the present application and electronic cloths in the prior art are shown in the following table:

[0114] As can be seen from the table above, the linear density of the high-open-fiber electronic yarn provided in the embodiment of the present application is greater than that of the G75 electronic yarn. The yarn is thicker, easy to shape, low in cost, and more convenient to weave and use. In addition, in the embodiment of the present application, the original G75 electronic yarn is replaced with a high-open-fiber electronic yarn to weave the 7628 electronic cloth, which reduces the warp and weft density of the weaving, effectively improves the weaving efficiency, improves the dimensional stability of the cloth surface, and reduces the weaving cost, thereby meeting the market demand for the increasing number of electronic cloths. Moreover, it can be seen from the table above that when the preparation method of the 7628 electronic cloth provided in the embodiment of the present application is used to weave the 7628 electronic cloth, since the high-open-fiber electronic yarn can be fully opened, the warp width and weft width of the electronic yarn are further increased compared to the G75 electronic yarn, and the warp and weft width can reach 600-750 μm, which can compensate for the increased yarn gap due to the reduced warp and weft density of the electronic yarn to a certain extent, and help to reduce the overall thickness of the 7628 electronic cloth, thereby improving the physical properties of the 7628 electronic cloth.

[0115] In addition, compared with the 7628 electronic cloth in the prior art, the linear density center value of the general G75 electronic yarn on the market is 69 tex, the linear density center value of the G37 electronic yarn is 137 tex, and the linear density of the high-spread electronic yarn is 72-95 tex. The linear density of the G37 electronic yarn is nearly twice that of the G75 electronic yarn. Although using G37 to weave 7628 electronic cloth can double the weaving efficiency, the warp and weft density used in its weaving is too low, and the woven electronic cloth has poor dimensional stability and is easy to deform, making it difficult to ensure the weaving quality of the electronic cloth. The method of using high-spread electronic yarn to weave 7628 electronic cloth provided in the embodiments of the present application can keep the warp and weft density of the 7628 electronic cloth within an appropriate range, which can not only improve weaving efficiency but also ensure the dimensional stability and weaving quality of the electronic cloth.

[0116] From the above comparison results, it can be seen that the 7628 electronic cloth woven with the high-fiber-opening electronic yarn provided in the embodiment of the present application has better performance in terms of yarn warp and weft width, warp and weft density, and warp and weft strength than the 7628 electronic cloth woven with G75 electronic yarn and the 7628 electronic cloth made with G37 electronic yarn in the prior art. While improving the production and weaving efficiency of the 7628 electronic cloth, it also improves the physical properties of the 7628 electronic cloth, so that the 7628 electronic cloth woven with high-fiber-opening electronic yarn has better performance in terms of air permeability, impregnation, etc.

[0117] Specifically, the weaving process of using G37 electronic yarn to weave 7628 electronic cloth in the related art is as follows:

[0118] The first step is to make G37 electronic raw yarn into warp yarn and weft yarn;

[0119] In the second step, through holes are opened on the outer surfaces of the warp and weft yarns, and then the warp and weft yarns are fed into the air-jet loom for weaving;

[0120] In the third step, the fabric woven in step S2 is sequentially fed into a KH unit and a BH furnace for continuous heat treatment and batch heat treatment. When the KH unit is used to continuously heat treat the fabric in step S1, the furnace temperature is 300-400° C., the heating time is 20-30 minutes, and the residual organic matter content in the fabric after treatment is 0.2-0.4%. When the BH furnace is used to treat the fabric, the temperature is 380-410° C., the treatment time is 30-50 hours, and the residual organic matter content in the fabric after treatment is 0.02-0.04%.

[0121] The fourth step is to send the heat-treated cloth into a silane coupling agent for surface chemical treatment to obtain electronic cloth. Before using the silane coupling agent for surface chemical treatment of the cloth, a fluorocarbon surfactant needs to be added to the silane coupling agent. The mass fraction of the fluorocarbon surfactant is 0.5% of the silane coupling agent.

[0122] The physical property parameters of the 7628 electronic cloth prepared by using the high-fiber electronic yarn provided in the embodiment of the present application, the 7628 electronic cloth prepared by using the G37 electronic yarn obtained by the above preparation process, and the 7628 electronic cloth prepared by using the G75 electronic yarn are compared as follows:

[0123] It can be seen that the 7628 electronic cloth woven with high-opening electronic yarn provided in the embodiment of the present application has a significantly lower air permeability than the 7628 electronic cloth in the prior art, while the basis weight of the electronic cloth remains unchanged. This indicates that the electronic cloth prepared using the 7628 electronic cloth preparation method provided in the embodiment of the present application has a smoother surface, better uniformity, and lower thickness. In addition, the electronic cloth prepared using the 7628 electronic cloth preparation method provided in the embodiment of the present application has a low impregnation content, indicating that the 7628 electronic cloth provided in the embodiment of the present application not only has good permeability and compatibility with the surface treatment agent, but also has better bonding with the resin.

[0124] In summary, the preparation method of 7628 electronic cloth woven with high-open-fiber electronic yarn provided in the embodiment of the present application, by reasonably controlling the temperature, humidity and twist when the high-open-fiber raw yarn is twisted into high-open-fiber electronic yarn, can make the twisted high-open-fiber electronic yarn have good bundling properties, reduce the generation of yarn surface hairiness, and the woven electronic cloth has a smooth and bright surface. By reasonably controlling the winding tension after sizing and the winding tension after warping, the weaving shaft has good hardness while ensuring good flatness of the cloth surface and improving the uniformity of the cloth surface tension. By adopting the electronic cloth to pass through multiple high-temperature furnace zones at a certain linear speed for pre-desizing treatment and three-stage temperature insulation for thermal desizing treatment, two high-temperature desizing treatments can greatly burn off the slurry residue of the electronic cloth, improve the permeability and compatibility between the surface treatment agent and the electronic cloth, and the three-stage insulation form can effectively protect the smoothness of the cloth surface, improve the quality of the cloth surface, and be more conducive to the removal of the electronic cloth slurry.

[0125] Furthermore, by employing the surface treatment and fiber opening methods provided in the embodiments of this application, the 7628 electronic cloth is impregnated with a silane coupling agent, which enhances the bond between the electronic cloth and the resin during subsequent processing. Furthermore, when using the silane coupling agent, the acidity is adjusted with glacial acetic acid to facilitate hydrolysis. The highly open-fibered electronic yarn in the electronic cloth is then fully opened and exposed to the surface treatment agent, reducing the thickness of the cloth surface. Excess surface treatment agent is removed by the high-pressure water flow, effectively improving the uniformity of the subsequent bond between the electronic cloth and the resin.

[0126] During the fiber-opening process, the present embodiment controls the pressure of the high-pressure water jet to ensure that the highly open electronic yarn is fully opened and flattened while preventing excessive pressure from causing fluff or even breakage. In this embodiment, the water flow conductivity is controlled to less than 10 μs / cm, which reduces impurities on the fabric and improves the bonding properties of the electronic fabric.

[0127] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0128] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways.

[0129] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application. Industrial Applicability

[0130] The solution provided in the embodiment of the present application can be applied to the textile field. In the embodiment of the present application, a high-fiber-open electronic yarn is subjected to a yarn arrangement operation, a sizing operation, a winding operation, a warp operation and a take-up operation in sequence to obtain a weaving shaft, wherein the linear density range of the high-fiber-open electronic yarn is 72-95tex; a loom is used to weave the weaving shaft with a plain weave structure to obtain an intermediate fabric; the intermediate fabric is subjected to a pre-desizing treatment, a heat desizing treatment, a surface chemical treatment and a fiber-opening treatment in sequence to obtain a 7628 electronic cloth, wherein the warp density of the 7628 electronic cloth is in the range of 30.5-43.0ends / inch, the weft density of the 7628 electronic cloth is in the range of 25.4-31.0ends / inch, and the basis weight of the electronic cloth is in the range of 207-213g / ㎡, thereby achieving the technical effect of improving the production efficiency and performance of the 7628 electronic cloth.

Claims

1. A method for preparing an electronic cloth, comprising: The high-fiber-opening electronic yarn is subjected to a yarn arrangement operation, a sizing operation, a winding operation, and a winding operation in sequence to obtain a weaving shaft, wherein the linear density of the high-fiber-opening electronic yarn is in the range of 72-95 tex; Using a loom to weave the weaving beam in a plain weave structure to obtain an intermediate fabric; The intermediate fabric is subjected to pre-de-sizing treatment, thermal de-sizing treatment, surface chemical treatment and fiber opening treatment in sequence to obtain 7628 electronic fabric, wherein the warp density of the 7628 electronic fabric is in the range of 30.5-43.0 ends / inch, the weft density of the 7628 electronic fabric is in the range of 25.4-31.0 ends / inch, and the basis weight of the 7628 electronic fabric is in the range of 207-213 g / m 2 .

2. The method for preparing electronic cloth according to claim 1, wherein: Before the step of sequentially performing yarn arrangement, sizing, winding, and winding operations on the high-fiber-opening electronic yarn to obtain a weaving shaft, the method for preparing electronic cloth further includes: The high-fiber-opening electronic yarn is twisted to obtain the high-fiber-opening electronic yarn, wherein the twist value range of the high-fiber-opening electronic yarn obtained after the twisting treatment is 15-30 twists.

3. The method for preparing electronic cloth according to claim 2, wherein: The step of twisting the high-fiber-opening electronic yarn to obtain the high-fiber-opening electronic yarn comprises: The high-opening electronic yarn is twisted in a first preset temperature range and a preset humidity range, wherein the first preset temperature range is 25-35° C., and the preset humidity range is 40-50%.

4. The method for preparing electronic cloth according to claim 1, wherein: After the high-fiber-opening electronic yarn is sizing, the winding tension of the high-fiber-opening electronic yarn is in the range of 850-950N; After the high-fiber-opening electronic yarn is operated, the winding tension of the high-fiber-opening electronic yarn ranges from 4000 to 5000N.

5. The method for preparing electronic cloth according to claim 1, wherein: The step of pre-de-sizing the intermediate fabric comprises: The intermediate fabric is passed through the first high temperature furnace zone and the second high temperature furnace zone at a preset line speed, thereby completing the pre-desizing treatment of the intermediate fabric, wherein the preset line speed has a value range of 95-105 m / min, the temperature of the first high temperature furnace zone has a value range of 420-440° C., and the temperature of the second high temperature furnace zone has a value range of 440-460° C.

6. The method for preparing electronic cloth according to claim 1, wherein: The step of thermally desizing the intermediate fabric comprises: In a first insulation temperature range, the intermediate fabric that has undergone the pre-de-sizing treatment is subjected to a first insulation treatment, wherein the first insulation temperature range is 150-200° C., and the insulation time of the first insulation treatment is in the range of 2-3 hours; In a second heat preservation temperature range, performing a second heat preservation treatment on the intermediate fabric that has undergone the first heat preservation treatment, wherein the second heat preservation temperature range is 220-260° C., and the heat preservation time of the second heat preservation treatment ranges from 5 to 6 hours; In a third insulation temperature range, the intermediate fabric that has undergone the second insulation treatment is subjected to a third insulation treatment, wherein the third insulation temperature range is 390-410° C., and the insulation time range of the third insulation treatment is 50-53 hours.

7. The method for preparing electronic cloth according to claim 1, wherein: The step of performing a surface chemical treatment on the intermediate fabric comprises: The intermediate fabric that has completed the thermal desizing treatment is immersed in a prefabricated silane coupling agent to complete the surface chemical treatment of the intermediate fabric, wherein the solid content of the prefabricated silane coupling agent is in the range of 0.10-0.45%, and the pH value of the prefabricated silane coupling agent is in the range of 2.0-5.0 during the surface chemical treatment of the intermediate fabric.

8. The method for preparing electronic cloth according to claim 1, wherein: The step of performing fiber opening treatment on the intermediate fabric comprises: The intermediate fabric that has completed the surface chemical treatment is passed through a high-pressure water jet to complete the fiber opening treatment of the intermediate fabric to obtain the 7628 electronic fabric, wherein the pressure range of the high-pressure water jet is 0.5-4.0MPa, the nozzle aperture range of the high-pressure water jet is 0.1-0.2mm, and the water flow conductivity of the high-pressure water jet does not exceed 10μs / cm.

9. A 7628 electronic cloth, wherein: The 7628 electronic cloth is obtained by interlacing a plurality of groups of high-fiber electronic yarns arranged in the warp direction and a plurality of groups of high-fiber electronic yarns arranged in the weft direction, wherein the warp density of the 7628 electronic cloth is in the range of 30.5-43.0 ends / inch, the weft density of the 7628 electronic cloth is in the range of 25.4-31.0 ends / inch, and the basis weight of the 7628 electronic cloth is in the range of 207-213 g / m 2 , and the thickness of the electronic cloth ranges from 165 to 180 μm.

10. The 7628 electronic cloth according to claim 9, wherein: The 7628 electronic cloth is obtained by interlacing and weaving multiple groups of the high-fiber electronic yarns arranged in the warp direction and multiple groups of the high-fiber electronic yarns arranged in the weft direction according to a plain weave structure.

11. The 7628 electronic cloth according to claim 9, wherein: The linear density of the high-fiber-opening electronic yarn ranges from 72 to 95 tex, and the twist of the high-fiber-opening electronic yarn ranges from 15 to 30 twists.

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