Manufacturing process of composite elastic fabric

Abstract

The invention provides a composite elastic fabric manufacturing process, and relates to the technical field of elastic fabrics, and the composite elastic fabric manufacturing process comprises the following steps: S1, preparing materials; s2, pretreating elastic fibers; s3, quantitatively mixing a high-elasticity polymer layer; s4, preparing substrate nano woven cloth and reinforced fiber cloth; s5, preparing a functional middle isolation layer; and S6, carrying out surface activity treatment. According to the invention, by selecting a high-performance material and combining a plasma surface treatment technology and a precise nanoscale processing method, the adhesiveness and the edge precision of the material are remarkably improved, and by scientifically controlling the thickness of the polymer layer and the formula of the functional intermediate isolation layer, the performance of the material is improved. The fabric has excellent tensile strength, self-repairing capability and elastic recovery performance, under the clamping of high-precision hot press molding and surface active treatment, the prepared fabric is high in integrality and durability, the elastic recovery rate reaches 98%, the fabric still keeps stable under multiple times of stretching and high-humidity and high-temperature environments, and the fabric is not prone to falling off. And therefore, the practicability of the device in the actual use process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of elastic fabrics, and in particular to a manufacturing process of composite elastic fabrics. Background Art

[0002] With the continuous development of textile technology, composite elastic fabrics have received more and more attention due to their excellent performance and wide application prospects. Composite elastic fabrics are usually made of multiple materials combined with a specific process to achieve stronger elasticity, durability and comfort. This material has been widely used in many fields such as sportswear, home furnishings, medical devices and functional products. The existing composite elastic fabric production technology often faces problems such as poor material adhesion, insufficient edge precision and short service life, which seriously affects the overall performance and actual application effect of the fabric.

[0003] There are many shortcomings in the existing composite elastic fabric manufacturing technology. Traditional material selection and processing technology are often limited to general polymer materials, and fail to give full play to the performance advantages of the materials, resulting in poor performance of the fabric in terms of strength, elasticity and durability. The existing technology lacks effective surface treatment methods when bonding materials, making it difficult to achieve efficient bonding. Especially in high humidity and high temperature environments, the stability and durability of the fabric are worrying. Many current manufacturing methods are not precise enough in the configuration control of the functional intermediate isolation layer, which affects the self-repair ability and elastic recovery performance of the fabric. Therefore, we provide a composite elastic fabric manufacturing process to comprehensively improve the performance characteristics of the fabric and ensure its use quality and wearing comfort in complex environments. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: comprising the following steps: S1. Prepare materials; S2, pre-treated elastic fibers; S3, quantitatively mixing a highly elastic polymer layer; S4, preparing a base nanowoven fabric and a reinforcing fiber fabric; S5, preparing a functional intermediate isolation layer; S6, surface active treatment; S7, stacking multiple layers of materials; S8, hot pressing; S9, post-processing and quality inspection.

[0006] By adopting the above technical solution: in the step S1, non-existing technical materials including high-elastic nanofibers, double-layer ultra-high molecular weight polyethylene nano-woven fabric, polyimide nano-woven fabric, functional isolation layer material nano-vermiculite ore, intelligent curing agent, and nano-level adhesive are prepared.

[0007] By adopting the above technical solution: in the step S2 of pre-treating the elastic fiber, the high elastic nanofiber is surface activated by plasma treatment technology to enhance its adhesion with other layer materials and ensure that the elastic recovery rate of the fiber reaches more than 95%.

[0008] By adopting the above technical solution: in the step S3 of quantitatively mixing the high elastic polymer layer, according to the process requirements, the high elastic polymer material polyurethane nanoparticles and the elastomer matrix are mixed in a ratio of 70:30 to ensure that the thickness of the mixed layer is controlled at 2 mm±0.2 mm and has excellent tensile strength and recovery performance.

[0009] By adopting the above technical solution: in the step S4, in preparing the base nano-woven cloth and the reinforcing fiber cloth, the double-layer ultra-high molecular weight polyethylene nano-woven cloth is cut into appropriate sizes according to the specified surface density of 160 g / m², and then the polyimide nano-woven cloth is cut into corresponding sizes according to the specified surface density of 220 g / m², and the fineness and integrity of the cloth edge are ensured by nano-laser cutting technology.

[0010] By adopting the above technical solution: in the step S5 of preparing the functional intermediate isolation layer, a nano-scale functional isolation material is selected and prepared into a layered structure that meets the specified thickness range of 6 mm to 12 mm, and a smart curing agent and nano-vermiculite particles are evenly mixed in a ratio of 9:1 to ensure that the density of the isolation layer is 1.25 g / ml and has self-healing ability.

[0011] By adopting the above technical solution: in the surface activation treatment of step S6, the surface of each layer of material is treated by plasma or ultraviolet radiation to increase the surface energy, thereby improving the bonding strength between the layers and ensuring that the composite fabric can still maintain good integrity and elasticity after multiple stretching.

[0012] By adopting the above technical solution: in the step S7 of stacking multiple layers of materials, the high elastic polymer layer, the base nano-woven cloth, the reinforced fiber cloth, and the functional intermediate isolation layer are stacked in sequence according to a predetermined order, ensuring that the alignment accuracy between the layers of materials reaches the micron level to ensure the uniformity and consistency of the final fabric.

[0013] By adopting the above technical solution: in the hot pressing molding of step S8, high-precision hot pressing equipment is used to hot press the stacked materials under the conditions of controlling the temperature at 150°C and the pressure at 5 MPa to ensure that each layer of material is fully integrated to form a tightly combined composite structure, while avoiding thermal degradation and performance loss of the material.

[0014] By adopting the above technical solution: in the post-processing and quality inspection of step S9, the composite fabric after hot pressing is post-processed, including cooling, cutting and edge processing, and the structural integrity, mechanical properties and elastic recovery rate of the fabric are comprehensively inspected by a nano-microscope, a tensile tester and an elastic recovery tester to ensure that the product meets the design standards and usage requirements.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: The present invention significantly improves the adhesion and edge accuracy of the material by selecting high-performance materials, combining plasma surface treatment technology and precise nano-level processing methods. By scientifically controlling the thickness of the polymer layer and the formula of the functional intermediate isolation layer, the fabric has excellent tensile strength, self-repair ability and elastic recovery performance. With the support of high-precision hot pressing and surface active treatment, the prepared fabric has strong integrity, high durability, and an elastic recovery rate of 98%. It remains stable under multiple stretching and high humidity and high temperature environments, thereby improving its practicality in actual use. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0017] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0018] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0019] The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. The directions or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 therefore should not be understood as limiting the present invention.

[0020] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0022] The manufacturing process of a composite elastic fabric provided by the present invention is now described. Example 1

[0023] The present invention provides a technical solution: a composite elastic fabric manufacturing process, comprising the following steps: S1. Prepare materials; S2, pre-treated elastic fibers; S3, quantitatively mixing a highly elastic polymer layer; S4, preparing a base nanowoven fabric and a reinforcing fiber fabric; S5, preparing a functional intermediate isolation layer; S6, surface active treatment; S7, stacking multiple layers of materials; S8, hot pressing; S9, post-processing and quality inspection; In the step S1, in preparing materials, non-existing technology materials including high elastic nanofibers, double-layer ultra-high molecular weight polyethylene nano-woven fabrics, polyimide nano-woven fabrics, functional isolation layer materials nano-vermiculite ore, intelligent curing agents, and nano-level adhesives are prepared; In the step S2 of pre-treating the elastic fibers, the high elastic nanofibers are surface activated by plasma treatment technology to enhance their adhesion to other layer materials and ensure that the elastic recovery rate of the fibers reaches more than 95%; In the quantitatively mixed high elastic polymer layer in step S3, the high elastic polymer material polyurethane nanoparticles and the elastomer substrate are mixed in a ratio of 70:30 according to the process requirements, ensuring that the thickness of the mixed layer is controlled within 2 mm±0.2 mm and has excellent tensile strength and recovery performance; In the step S4, in preparing the base nano-woven cloth and the reinforcing fiber cloth, the double-layer ultra-high molecular weight polyethylene nano-woven cloth is cut into appropriate sizes according to the specified surface density of 160 g / m², and the polyimide nano-woven cloth is cut into corresponding sizes according to the specified surface density of 220 g / m², and the fineness and integrity of the cloth edges are ensured by nano-laser cutting technology; In the step S5 of preparing the functional intermediate isolation layer, a nano-scale functional isolation material is selected and prepared into a layered structure that meets the specified thickness range of 6 mm to 12 mm, and a smart curing agent and nano vermiculite particles are uniformly mixed in a ratio of 9:1 to ensure that the density of the isolation layer is 1.25 g / ml and has self-repairing ability; In the surface activation treatment of step S6, the surface of each layer of material is treated by plasma or ultraviolet radiation to increase the surface energy, thereby improving the bonding strength between the layers and ensuring that the composite fabric can still maintain good integrity and elasticity after multiple stretching; In the step S7 of stacking the multilayer materials, the high elastic polymer layer, the base nanowoven cloth, the reinforced fiber cloth, and the functional intermediate isolation layer are stacked in sequence according to a predetermined order, ensuring that the alignment accuracy between the layers of materials reaches the micron level to ensure the uniformity and consistency of the final fabric; In the step S8 of hot pressing, high-precision hot pressing equipment is used to hot press the stacked materials under the conditions of controlling the temperature at 150°C and the pressure at 5 MPa to ensure that each layer of material is fully integrated to form a tightly combined composite structure while avoiding thermal degradation and performance loss of the material; In the post-processing and quality inspection of step S9, the composite fabric after hot pressing is post-processed, including cooling, cutting and edge processing, and the structural integrity, mechanical properties and elastic recovery rate of the fabric are comprehensively inspected by a nanometer microscope, a tensile tester and an elastic recovery tester to ensure that the product meets the design standards and usage requirements.

[0024] Compared with the prior art, the composite elastic fabric prepared in this embodiment reduces the use of traditional materials, has more reliable strength, is less prone to breakage and wear, and maintains a high degree of adhesion during the preparation process to ensure the close bonding of the various layers of materials. The fabric is not prone to surface cracks when stretched and impacted, has a high elastic recovery rate, and extends its service life. The functional middle isolation layer gives the fabric self-repairing ability, further improving its durability and damage resistance, ensuring that it still maintains excellent integrity and elasticity after multiple uses. Comparative Example 1

[0025] The method of this embodiment is substantially the same as that of the embodiment 1 provided, with the main difference being that in the step S3 of quantitatively mixing the high elastic polymer layer, the ratio of the high elastic polymer material polyurethane nanoparticles to the elastomer substrate is 50:50.

[0026] The thickness control of the polymer mixed layer prepared in this comparative example is unstable, which in turn affects the tensile strength and elastic recovery performance of the fabric. The composite elastic fabric finally obtained is prone to breakage and insufficient elasticity, which reduces the service life and durability of the fabric. Comparative Example 2

[0027] The method of this embodiment is substantially the same as that of the provided embodiment 1, with the main difference being that in the step S5 of preparing the functional intermediate isolation layer, the thickness of the nano-scale functional isolation material is not between 6 mm and 12 mm.

[0028] The thickness of the isolation layer prepared in this comparative example deviates from the prescribed range, which may result in uneven density of the isolation layer, affecting its self-repair ability and the stability of the overall structure. The durability and damage resistance of the prepared composite elastic fabric are significantly reduced, and it is easy to be damaged after repeated use and cannot effectively self-repair, affecting the overall performance and reliability of the product. Comparative Example 3

[0029] The method of this embodiment is substantially the same as that of the provided embodiment 1, with the main difference being that in the hot pressing molding in step S8, high-precision hot pressing equipment is used under conditions of controlling the temperature at 150°C and the pressure at 5 MPa.

[0030] The fabric prepared in this comparative example is not fully fused, and the bonding degree of the composite structure is insufficient, which in turn affects the integrity and elastic recovery rate of the fabric. Improper temperature and pressure control may cause thermal degradation or performance loss of the material, resulting in the final composite elastic fabric being prone to surface cracks under stretching and impact, and the elastic recovery ability is reduced, thereby reducing the service life and performance stability of the fabric. Performance Testing

[0031] Test piece specifications: cube, length, width, height are 50cm, 20cm, 100cm respectively; Toughness test: Fix the fabric flat on the tensile testing machine, slowly apply tension along the fiber direction at a stretching speed of 50 cm per minute until the fabric breaks, record the maximum tensile force (Newton) and displacement (cm) at break, repeat the test 3 times, and take the average value as the toughness index of the fabric; Stability test: The fabric sample is fixed on the dimensional stability test equipment and kept in a constant state for 24 hours under the environmental conditions of temperature of 40℃ and relative humidity of 90%. The length and width of the fabric are measured before and after the test, and the dimensional change rate (ΔL / L0 × 100%, where ΔL represents the change in the size of the material during the test) is calculated.

[0032] , It is the size measured after the test. is the original size before the test) to evaluate the dimensional stability of the fabric in high temperature and high humidity environment; Recovery test: Stretch the fabric sample to 150% of its original length, keep it stretched for 5 minutes, then quickly release the stress to allow the fabric to recover naturally. Observe and record the time (seconds) required for the fabric to recover to its original length, as well as the dimensional recovery rate after recovery (the percentage of the recovered length to the original length). Repeat the test 3 times and take the average value as the fabric recovery index. The toughness test, stability test and recovery ability test results of the products made of the composite elastic fabrics provided in Example 1 and Comparative Examples 1-3 are as follows:

[0033] By analyzing the relevant data in the above tables, we can know that: The present invention prepares a variety of high-performance materials including high-elastic nanofibers, double-layer ultra-high molecular weight polyethylene nano-weft-free fabrics, polyimide nano-woven fabrics, etc. Subsequently, the elastic fibers are surface-activated using plasma treatment technology, which significantly enhances the adhesion between the fibers and other layer materials and ensures that the elastic recovery rate reaches more than 95%. In addition, by quantitatively mixing the high-elastic polymer material with the elastomer substrate, the thickness of the mixed layer is controlled at 2 mm ± 0.2 mm, ensuring that the fabric has excellent tensile strength and recovery performance.

[0034] During the material preparation and middle layer construction stages, nano-scale laser cutting technology is used to precisely cut the base nano-woven fabric and the reinforcing fiber fabric to ensure the fineness and integrity of the fabric edges. The functional middle isolation layer is prepared using nano-scale functional isolation materials, and through the uniform mixing of intelligent curing agents and nano-vermiculite particles, the isolation layer is given self-repairing ability, which improves the durability and damage resistance of the fabric. Surface active treatment increases the surface energy of each layer of material through plasma or ultraviolet radiation, further improving the interlayer bonding strength and ensuring that the composite fabric still maintains good integrity and elasticity after multiple stretching.

[0035] In the stacking and forming stage, multiple layers of materials are stacked in a predetermined order and hot-pressed under high-precision hot-pressing equipment to ensure that each layer of material is fully integrated to form a tightly bound composite structure to avoid thermal degradation and performance loss. Finally, through post-processing and quality inspection, the fabric is cooled, cut and edge-processed, and the structural integrity, mechanical properties and elastic recovery rate of the fabric are comprehensively tested using nano-microscopes, tensile testers and other equipment. Experimental data show that the composite elastic fabric prepared by the present invention is superior to the comparative sample in terms of toughness, stability and recovery ability, and embodies higher strength, better elastic recovery rate and longer service life, fully demonstrating the significant advantages and reliability of this process in practical applications.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A composite elastic fabric manufacturing process, characterized by: The following steps are involved: S1. Prepare materials; S2, pre-treated elastic fibers; S3, quantitatively mixing a highly elastic polymer layer; S4, preparing a base nanowoven fabric and a reinforcing fiber fabric; S5, preparing a functional intermediate isolation layer; S6, surface active treatment; S7, stacking multiple layers of materials; S8, hot pressing; S9, post-processing and quality inspection.

2. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S1, non-existing technology materials such as high-elastic nanofibers, double-layer ultra-high molecular weight polyethylene nano-woven fabrics, polyimide nano-woven fabrics, functional isolation layer materials such as nano-vermiculite ore, intelligent curing agents, and nano-level adhesives are prepared.

3. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S2 of pre-treating the elastic fibers, the high elastic nanofibers are surface activated by plasma treatment technology to enhance their adhesion to other layer materials and ensure that the elastic recovery rate of the fibers reaches more than 95%.

4. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the quantitatively mixed high elastic polymer layer in step S3, the high elastic polymer material polyurethane nanoparticles and the elastomer substrate are mixed in a ratio of 70:30 according to the process requirements to ensure that the thickness of the mixed layer is controlled within 2 mm±0.2 mm and has excellent tensile strength and recovery performance.

5. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S4, in preparing the base nano-woven cloth and the reinforcing fiber cloth, the double-layer ultra-high molecular weight polyethylene nano-woven cloth is cut into appropriate sizes according to the specified surface density of 160 g / m², and the polyimide nano-woven cloth is cut into corresponding sizes according to the specified surface density of 220 g / m², and the fineness and integrity of the cloth edges are ensured by nano-level laser cutting technology.

6. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S5 of preparing the functional intermediate isolation layer, a nano-scale functional isolation material is selected and prepared into a layered structure that meets the specified thickness range of 6 mm to 12 mm. An intelligent curing agent and nano-vermiculite particles are evenly mixed in a ratio of 9:1 to ensure that the density of the isolation layer is 1.25 g / ml and has self-repairing ability.

7. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the surface activation treatment of step S6, plasma or ultraviolet radiation is used to treat the surface of each layer of material to increase the surface energy, thereby improving the bonding strength between the layers and ensuring that the composite fabric can still maintain good integrity and elasticity after multiple stretching.

8. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S7 of stacking multiple layers of materials, the high elastic polymer layer, the base nano-woven cloth, the reinforced fiber cloth, and the functional intermediate isolation layer are stacked in sequence according to a predetermined order, ensuring that the alignment accuracy between the layers of materials reaches the micron level to ensure the uniformity and consistency of the final fabric.

9. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the step S8 hot pressing, high-precision hot pressing equipment is used to hot press the stacked materials under the conditions of controlling the temperature at 150°C and the pressure at 5 MPa to ensure that each layer of material is fully integrated to form a tightly combined composite structure while avoiding thermal degradation and performance loss of the material.

10. The process for producing a composite elastic fabric according to claim 1, characterized in that: In the post-processing and quality inspection of step S9, the composite fabric after hot pressing is post-processed, including cooling, cutting and edge processing, and the structural integrity, mechanical properties and elastic recovery rate of the fabric are comprehensively inspected by a nanometer microscope, a tensile tester and an elastic recovery tester to ensure that the product meets the design standards and usage requirements.

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