Preparation method for improving shearing resistance of fabric

Abstract

The invention belongs to the technical field of textile manufacturing, and particularly relates to a preparation method for improving the shearing resistance of a fabric, which comprises the following steps: selecting a multi-layer quasi-three-dimensional woven fabric as an advanced textile technology, selecting high-strength synthetic fibers, such as aramid fibers or polyester fibers, as a main component of the fabric, and selecting three-dimensional metal as a reinforcing layer to prepare the multi-layer quasi-three-dimensional woven fabric. Metal wires are embedded into the multi-layer three-dimensional woven fabric, and a three-dimensional structure is introduced into the fabric; through the structural cooperation, the multi-layer three-dimensional woven fabric uses the three-dimensional metal wires as the reinforcing layer, the anti-shearing performance of the fabric when the fabric is subjected to explosion impact is guaranteed, the multi-layer quasi-three-dimensional woven fabric is an advanced textile technology, a three-dimensional structure is introduced into the fabric, the overall performance and stability of the material are improved, and the anti-explosion performance of the fabric is improved. The fabric is generally composed of multiple layers of fibers, and a stable three-dimensional structure is formed among the layers of fibers through a specific weaving technology, so that the mechanical properties such as shearing resistance, impact resistance and stretching resistance of the fabric are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of textile manufacturing, in particular to a preparation method for increasing the shear resistance of fabric. Background Art

[0002] Fabrics are materials made of fibers interwoven, woven or connected in a certain way. They are widely used in clothing, home furnishings, industry and other fields. The types, structures and properties of fabrics vary. At present, it is not uncommon to give fabrics single functions such as waterproof, moisture permeability, flame retardant, oil repellent and weather resistance, and the corresponding finishing technology is becoming more and more mature. Although the above products have some special functions, they have become single-function and cannot adapt to the current rapid changes in the textile market. Especially for tourism, transportation, industrial fabrics, aerospace and military industries, textiles with single functions are far from meeting the requirements.

[0003] With the development of human science and technology and the improvement of people's living standards, people pay attention to the beauty and comfort of fabrics, while the requirements for the comfort of wearing fabrics are also constantly increasing. Comfort is the physiological feeling of the human body to fabrics. Space suits are key equipment to ensure the life activities and work ability of astronauts in the space environment. Their structural design, material selection and ergonomic performance are directly related to the life safety and mission execution of astronauts in space. The material selection and design of space suits need to comprehensively consider multiple factors to ensure the all-round protection of astronauts in the space environment. For example, the pressure protection function of the space suit is realized through the pressure suit, which can establish a pressure environment for the human body to survive and prevent the human body from being harmed by pressure changes in the high vacuum and low pressure space environment.

[0004] However, from the perspective of existing fabric technology, space suits are key equipment to ensure the life activities and work capabilities of astronauts in the space environment. Their structural design, material selection, and ergonomic performance are directly related to the life safety and mission execution of astronauts in space. The material selection and design of space suits need to comprehensively consider multiple factors to ensure the all-round protection of astronauts in the space environment. In fabric preparation, plain fabrics, twill fabrics, and satin fabrics are mostly used, which lack shear resistance. When the fabric lacks shear resistance, it is easy to deform, resulting in the shape and structure of the fabric being unstable. Under the action of shear force, the fibers of the fabric may slip or break, resulting in increased wear and shortening its service life. Fabrics that lack shear resistance are more likely to tear when subjected to external forces, especially in high stress areas, and have poor shear resistance. When worn, the fabric has poor air permeability and thermal insulation, which will cause stuffiness to personnel. Due to the structural and material limitations of the space suit, the astronauts' range of activities is affected, further exacerbating the discomfort. After sweating, moisture cannot be effectively discharged, which may cause the humidity inside the space suit to increase, further aggravating the stuffiness.

[0005] To this end, the present invention provides a preparation method for increasing the shear resistance of fabric. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a preparation method for increasing the shear resistance of a fabric according to the present invention comprises the following steps:

[0008] S1: The multi-layer quasi-three-dimensional woven fabric is an advanced textile technology, wherein high-strength synthetic fibers, such as aramid or polyester fibers, are selected as the main component of the fabric;

[0009] S2: The three-dimensional metal is used as a reinforcement layer, and metal wires are embedded in the multi-layer three-dimensional woven fabric;

[0010] S3: The three-dimensional structure is introduced into the fabric, the fabric is usually composed of multiple layers of fibers, and the three-dimensional structure is formed by three-dimensional weaving technology, so that a stable three-dimensional structure is formed between each layer of fibers;

[0011] S4: applying a coating on the surface of the fabric, then heat treating the fabric, and then rapidly cooling the fabric after the heat treatment;

[0012] S5: Adding reinforcing agent to fabric preparation, followed by cross-linking agent treatment, and then physically modifying the fabric.

[0013] A further improvement of the technical solution of the present invention is that the main function of the three-dimensional metal wire is to enhance the shear resistance of the fabric, and when subjected to an explosion impact, the impact force can be effectively absorbed and dispersed. The metal wire is arranged in a staggered manner, and the angle of the staggered arrangement is 45 degrees.

[0014] A further improvement of the technical solution of the present invention lies in: the selected fibers are treated, chemical agents (such as cross-linking agents) are used to enhance the strength and toughness of the fibers, the fabric is treated with a cross-linking agent to form a three-dimensional network structure, and the cross-linking agent can enhance the bonding force between the fibers through chemical reactions.

[0015] A further improvement of the technical solution of the present invention is that the physical modification method can adopt ultrasonic treatment or plasma treatment to change the physical properties of the fabric surface.

[0016] A further improvement of the technical solution of the present invention is that: the waterproof and wear-resistant coating is applied to the surface of the fabric, and the coating material can be polyurethane or other high-performance polymers.

[0017] A further improvement of the technical solution of the present invention is that the heat setting treatment heats the fabric to between 150°C and 200°C and keeps it at high temperature for 2 minutes to ensure that the molecular chains of the fibers are fully relaxed and rearranged, and the fabric is quickly cooled to fix its new shape and size.

[0018] A further improvement of the technical solution of the present invention is that the dispersion of shear force is taken into consideration in the fabric design, and the fabric edge is reinforced by using reinforcing ribs.

[0019] A further improvement of the technical solution of the present invention is that: a fireproof layer is added to the surface of the fabric, a heat insulation layer and a radiation protection layer are fixed on the surface of the fireproof layer, and fine air holes are provided on the surface of the heat insulation layer.

[0020] A further improvement of the technical solution of the present invention is that the reinforcing agent in the preparation of the fabric can be selected from nanomaterials, and the nanomaterials can be selected from nanoclay, graphene, etc.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The preparation method for increasing the shear resistance of fabrics described in the present invention uses multi-layer three-dimensional woven fabrics and three-dimensional metal wires as reinforcement layers to ensure the shear resistance of the fabrics when subjected to explosion impact. Multi-layer quasi-three-dimensional woven fabrics are an advanced textile technology that improves the overall performance and stability of the material by introducing a three-dimensional structure into the fabric. This fabric is usually composed of multiple layers of fibers, and a stable three-dimensional structure is formed between each layer of fibers through a specific weaving technology, thereby enhancing the mechanical properties of the fabric such as shear resistance, impact resistance and tensile resistance. In space suits, the main function of the three-dimensional metal wires is to enhance the shear resistance of the fabric, especially in extreme cases such as explosion impact, and can effectively absorb and disperse the impact force to protect the safety of astronauts.

[0023] 2. The preparation method for increasing the shear resistance of fabrics described in the present invention, through the provision of thermal insulation layer and fireproof layer, the material selection and design of the space suit need to comprehensively consider multiple factors to ensure the all-round protection of astronauts in the space environment. The thermal insulation layer can effectively prevent heat from being conducted from the high-temperature area to the low-temperature area, and keep the temperature of the internal environment stable. The fireproof layer can achieve the effect of thermal isolation, and protect the internal structure of the fabric by reducing the conduction of heat, and extend its service life. It is coated on the surface of the fabric to form a protective film, which can expand at high temperature to form a thermal insulation layer.

[0024] 3. A preparation method for increasing the shear resistance of a fabric described in the present invention. During fabric preparation, three-dimensional metal wires are embedded into specific positions of the fabric to form a reinforcement layer to increase the flexibility and shear resistance of the fabric. The metal wires are arranged in a staggered manner, and the externally applied shear force and tensile force can be dispersed in multiple directions to reduce local stress concentration. This arrangement allows the fabric to maintain good tensile and shear resistance in different directions. In addition, the staggered structure can improve the stability of the fabric, prevent deformation or rupture under high-strength conditions, and facilitate improving the quality and shear resistance of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 A flowchart of the method for increasing the shear resistance of fabric;

[0027] Figure 2 A flow chart of a preparation method for increasing the shear resistance of a fabric; DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1: Figure 1 to Figure 2 As shown, a preparation method for increasing the shear resistance of a fabric according to an embodiment of the present invention comprises the following steps:

[0030] S1: Multi-layer quasi-3D woven fabric is an advanced textile technology that selects high-strength synthetic fibers, such as aramid or polyester fibers, as the main components of the fabric;

[0031] S2: Three-dimensional metal as a reinforcement layer, with metal wires embedded in multiple layers of three-dimensional woven fabrics;

[0032] S3: Introducing a three-dimensional structure into the fabric. The fabric is usually composed of multiple layers of fibers. The three-dimensional structure is formed by three-dimensional weaving technology, so that a stable three-dimensional structure is formed between each layer of fibers;

[0033] S4: applying a coating on the surface of the fabric, then heat treating the fabric, and then rapidly cooling the fabric after the heat treatment;

[0034] S5: Adding reinforcing agent to fabric preparation, followed by cross-linking agent treatment, and then physically modifying the fabric.

[0035] like Figure 1 to Figure 2As shown, the main function of the three-dimensional metal wire is to enhance the shear resistance of the fabric. When subjected to an explosion impact, it can effectively absorb and disperse the impact force. The metal wire is staggered at an angle of 45 degrees. In the design of space suits, a staggered arrangement of 0° and 90° may be used to ensure stability under multi-directional forces. At the same time, a staggered arrangement of 45° is used in certain key parts to enhance the shear resistance.

[0036] like Figure 1 to Figure 2 As shown, the selected fibers are treated, and chemical agents (such as cross-linking agents) are used to enhance the strength and toughness of the fibers. The fabric is treated with a cross-linking agent to form a three-dimensional network structure. The cross-linking agent can enhance the bonding force between the fibers through chemical reactions. The cross-linking agent increases the tensile strength and tear strength of the fibers by increasing the interaction force between the fiber molecules. The cross-linking structure enables the fibers to better disperse stress when subjected to external forces, reduces the possibility of breakage, and thus improves toughness.

[0037] like Figure 1 to Figure 2 As shown, the physical modification method can use ultrasonic treatment or plasma treatment to change the physical properties of the fabric surface, improve the air permeability and comfort through ultrasonic treatment, or enhance the stain resistance and wear resistance through plasma treatment.

[0038] like Figure 1 to Figure 2 As shown, a waterproof and wear-resistant coating is applied to the surface of the fabric. The coating material can be polyurethane or other high-performance polymers. Polyurethane performs well in humid environments and can maintain its waterproof properties. It is suitable for various climatic conditions. The polyurethane coating has excellent wear resistance, toughness and elasticity, so it performs well when stretched and torn, can resist friction and wear, and extend the service life of the fabric.

[0039] like Figure 1 to Figure 2 As shown, during heat setting, the fabric is heated to between 150°C and 200°C and kept at high temperature for 2 minutes to ensure that the molecular chains of the fibers are fully relaxed and rearranged, and the fabric is quickly cooled to fix its new shape and size. Heat setting can effectively fix the shape of the material and reduce deformation caused by temperature changes or external forces during subsequent use or processing. Heat setting can also improve the internal structure of the material and enhance its tensile strength and shear strength.

[0040] like Figure 1 to Figure 2 As shown, the dispersion of shear force is taken into consideration in fabric design. Strengthening the edges of the fabric, using reinforcing ribs, etc., and reinforcing materials in the fabric (such as mesh structures or reinforcing ribs) can effectively disperse the shear force and enhance the stability of the fabric.

[0041] like Figure 1 to Figure 2As shown, a fireproof layer is added to the surface of the fabric, and a thermal insulation layer and an anti-radiation layer are fixed on the surface of the fireproof layer. Fine air holes are opened on the surface of the thermal insulation layer. The material selection and design of the space suit need to comprehensively consider various factors to ensure the all-round protection of astronauts in the space environment. The thermal insulation layer can effectively prevent heat from being conducted from the high-temperature area to the low-temperature area, and keep the temperature of the internal environment stable. The fireproof layer can achieve the effect of thermal isolation, protect the internal structure of the fabric by reducing the conduction of heat, and extend its service life. It is coated on the surface of the fabric to form a protective film, which can expand at high temperature to form a thermal insulation layer. The anti-radiation layer can effectively block or reduce the spread of electromagnetic radiation and protect the safety of the human body and equipment.

[0042] like Figure 1 to Figure 2 As shown, the reinforcing agent in fabric preparation can be selected from nanomaterials, and the nanomaterials can be selected from nanoclay, graphene, etc. Adding nanomaterials in the process of fabric preparation can improve the mechanical properties of the fabric at the microscopic level.

[0043] Working principle: Select fiber materials with high strength and high modulus, such as aramid fiber, carbon fiber or high-performance polyester fiber. These materials themselves have excellent shear resistance, and can increase the shear resistance on this basis. Then, different types of fibers are compounded, and high-strength fibers are combined with flexible fibers to form composite fabrics. Composite materials can improve shear resistance while maintaining flexibility. Then, a three-dimensional weaving process is used to increase the structural stability and shear resistance of the fabric. Then, an anti-shear coating is applied to the surface of the fabric, and a polyurethane coating is applied. The polyurethane coating can enhance the shear resistance of the fabric while providing additional waterproof and wear-resistant properties. Then, the fabric is heat-treated to improve the arrangement and strength of its molecular chains. Heat treatment can improve the physical properties of fabrics. Before heat setting, the fabric needs to be washed and kept dry to remove impurities and moisture. The fabric is heated to a temperature between 150°C and 200°C and kept at high temperature for 2 minutes to ensure that the molecular chains of the fibers are fully relaxed and rearranged. The fabric is quickly cooled to fix its new shape and size. Subsequently, nanomaterials are added during the fabric preparation process to improve the mechanical properties of the fabric at the microscopic level. Subsequently, the fabric is treated with a cross-linking agent to form a three-dimensional network structure. The cross-linking agent can enhance the bonding force between fibers through chemical reactions. Subsequently, physical modification methods such as ultrasonic treatment or plasma treatment are used to change the physical properties of the fabric surface and improve its shear resistance.

[0044] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for increasing the shear resistance of a fabric, characterized in that: The following steps are involved: S1: The multi-layer quasi-three-dimensional woven fabric is an advanced textile technology, wherein high-strength synthetic fibers, such as aramid or polyester fibers, are selected as the main component of the fabric; S2: The three-dimensional metal is used as a reinforcement layer, and metal wires are embedded in the multi-layer three-dimensional woven fabric; S3: The three-dimensional structure is introduced into the fabric, the fabric is usually composed of multiple layers of fibers, and the three-dimensional structure is formed by three-dimensional weaving technology, so that a stable three-dimensional structure is formed between each layer of fibers; S4: applying a coating on the surface of the fabric, then heat treating the fabric, and then rapidly cooling the fabric after the heat treatment; S5: Adding reinforcing agent to fabric preparation, followed by cross-linking agent treatment, and then physically modifying the fabric.

2. A method for increasing the shear resistance of fabric according to claim 1, characterized in that: The main function of the three-dimensional metal wire is to enhance the shear resistance of the fabric. When subjected to an explosion impact, the fabric can effectively absorb and disperse the impact force. The metal wire is arranged in a staggered manner, and the angle of the staggered arrangement is 45 degrees.

3. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The selected fibers are treated, and chemical agents (such as cross-linking agents) are used to enhance the strength and toughness of the fibers. The fabric is treated with the cross-linking agent to form a three-dimensional network structure. The cross-linking agent can enhance the bonding force between the fibers through chemical reactions.

4. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The physical modification method may adopt ultrasonic treatment or plasma treatment to change the physical properties of the fabric surface.

5. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The waterproof and wear-resistant coating is applied on the surface of the fabric, and the coating material can be selected from polyurethane or other high-performance polymers.

6. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The heat setting treatment heats the fabric to between 150°C and 200°C, keeps it at high temperature for 2 minutes to ensure that the molecular chains of the fibers are fully relaxed and rearranged, and quickly cools the fabric to fix its new shape and size.

7. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The dispersion of shear force is taken into consideration in the fabric design, and the fabric edges are reinforced and reinforced ribs are used.

8. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: A fireproof layer is added on the surface of the fabric, a heat insulation layer and a radiation protection layer are fixed on the surface of the fireproof layer, and fine air permeable holes are provided on the surface of the heat insulation layer.

9. The method for increasing the shear resistance of fabric according to claim 1, characterized in that: The reinforcing agent in the preparation of the fabric may be a nanomaterial, and the nanomaterial may be nanoclay, graphene, etc.

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