High-strength knitted gray fabric

By introducing vertical and horizontal interlacing segments of reinforcing yarn in the weft and reinforcing yarn interlacing, the problem of poor tensile strength of weft-knitted fabrics is solved, achieving a high-strength fabric structure with good breathability and comfort.

CN223535350UActive Publication Date: 2025-11-11ZHEJIANG RONGLAI TEXTILE CO LTD
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Patent Information

Application Number
CN202423040082.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-11
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

The yarns in existing weft-knitted fabrics are prone to breakage when subjected to localized tension, resulting in poor overall tensile strength and a lack of effective reinforcement measures.

Method used

By introducing reinforcing yarns into the interweaving of weft and reinforcing yarns, vertical and horizontal connecting sections and transition sections are formed, enhancing the interweaving structure of the yarns. The reinforcing yarns are used as the main force-bearing structure to share most of the tension, reducing the tension of the weft yarns.

Benefits of technology

It improves the overall tensile strength of the fabric, prevents the weft yarn from breaking under high tension, enhances the fabric's service life and breathability, and improves user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength knitted gray fabric, and belongs to the technical field of knitted gray fabrics, the high-strength knitted gray fabric comprises a gray fabric body, the gray fabric body is formed by interweaving weft yarns and reinforcing yarns, the gray fabric body is mainly formed by bending the weft yarns into loops through a knitting needle and intermeshing the loops, and the reinforcing yarns are arranged among every three adjacent weft yarns in a penetrating manner. Each reinforcing yarn comprises a series connection section and a connection transition section, the series connection section connects three adjacent weft yarns in series, and the adjacent reinforcing yarns are connected in the mode that the series connection section of the lower reinforcing yarn is connected with the connection transition section of the upper reinforcing yarn in series; the reinforcing yarns and the weft yarns can be tightly interwoven together, meanwhile, the reinforcing yarns are interwoven with one another, so that the reinforcing yarns with poor elasticity can serve as a main stress structure to share most tensile force, the tensile force borne by the weft yarns is reduced, the weft yarns can be protected, and the service life of the weft yarns is prolonged. The problem that the whole cloth is difficult to continuously use due to breakage of the cloth under large tensile force is prevented.
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Description

Technical Field

[0001] This application relates to the field of knitted fabric technology, and in particular to a high-strength knitted fabric. Background Technology

[0002] Greige fabric refers to undyed cotton fabric used for printing and dyeing. In industry, greige fabric generally refers to raw fabric, or laminated greige fabric, greige fabric, etc. It can be classified into woven (shuttle) fabrics and knitted fabrics according to the processing method. Woven (shuttle) fabrics are made by interlacing yarns arranged perpendicularly in two systems, namely the horizontal and vertical systems, on a loom according to a certain pattern. Knitted fabrics, on the other hand, are made by weaving yarns into loops, and are divided into weft knitting and warp knitting. Weft knitted fabrics are made by feeding the weft yarns into the working needles of a knitting machine in the weft direction, causing the yarns to bend sequentially into loops and interlock. Warp knitted fabrics are made by feeding one or more groups of parallel yarns into all the working needles of a knitting machine in the warp direction, simultaneously forming loops.

[0003] Existing weft-knitted fabrics distribute all the tensile force on the entire fabric by means of the tension between the yarns. This places high demands on the tensile strength of the yarns themselves. Because the yarns are relatively thin, they are prone to breakage when subjected to local tension. Weft knitting, on the other hand, can lead to the failure of yarn connections over a large area due to the breakage of local yarns, ultimately making it difficult for the fabric to continue to be used normally. Therefore, a high-strength knitted fabric is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a high-strength knitted fabric that overcomes these deficiencies. The aim is to solve the problem that the lack of reinforcement measures in knitted fabrics results in the overall tensile strength being entirely limited by the yarn itself, leading to poor overall tensile strength.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A high-strength knitted fabric includes a fabric body, which is made of interwoven weft yarns and reinforcing yarns. The fabric body is mainly formed by weft yarns being bent into loops by knitting needles and interlocked with each other. A reinforcing yarn is threaded between every three adjacent weft yarns. The reinforcing yarn includes vertically arranged connecting sections and horizontally arranged connecting transition sections. The connecting sections connect three adjacent weft yarns in series, and adjacent reinforcing yarns are connected by connecting the connecting transition sections of the lower reinforcing yarns to the connecting transition sections of the upper reinforcing yarns.

[0007] By adopting the above technical solution, the reinforcing yarn and the weft yarn can be tightly interwoven, and each reinforcing yarn can also interweave with each other. This allows the less elastic reinforcing yarn to act as the main stress-bearing structure to share most of the tension, reducing the tension on the weft yarn and protecting it from breaking under large tension, which would make the entire fabric unusable.

[0008] As a preferred technical solution of this application, the weft yarn is bent by knitting needles to form loop segments and hanging segments arranged in an array, and adjacent loop segments and hanging segments are interconnected.

[0009] By adopting the above technical solution, the weft yarns can be interwoven to form a porous, integral sheet structure with good air permeability.

[0010] As a preferred technical solution of this application, the reinforcing yarn is threaded between the interlocking connection of the loop section and the hanging section.

[0011] By adopting the above technical solution, the reinforcing yarn and the weft yarn can be tightly interwoven, thereby transferring the tension on the weft yarn to the reinforcing yarn, so that the reinforcing yarn can bear the main tension.

[0012] As a preferred technical solution of this application, the reinforcing yarn includes an inner reinforcing core and an outer wrapping fiber. The reinforcing core is composed of several tensile fibers, and the wrapping fiber and the tensile fibers are twisted and shaped together to form a yarn.

[0013] By adopting the above technical solution, the wrapping fiber can play a skin-friendly role, avoiding direct contact between the internal tensile fibers and the human body, which may cause skin discomfort. The tensile fibers, as the stress-bearing structure, ensure that the reinforcing yarn as a whole has strong tensile properties.

[0014] As a preferred technical solution of this application, the wrapping fiber is a filament structure of cotton or other skin-friendly material, and the tensile fiber is a filament structure of polypropylene.

[0015] By adopting the above technical solutions, the wrapping of fibers with cotton or other skin-friendly materials can improve the overall skin-friendliness of the reinforcing yarn and enhance the comfort of users, while the polypropylene material can ensure that the tensile fibers have strong tensile strength.

[0016] As a preferred technical solution of this application, the weft yarn is made by twisting and shaping several synthetic fibers together, and the synthetic fibers are polyester filaments.

[0017] By adopting the above technical solutions, the overall tensile strength of the weft yarn can be improved, thereby further enhancing the overall tensile strength of the fabric.

[0018] The beneficial effects of this application are: it enables the reinforcing yarn and weft yarn to be tightly interwoven together to form a whole, and to participate in the stress together. At the same time, each reinforcing yarn is also interwoven with each other, so that the less elastic reinforcing yarn can act as the main stress-bearing structure to share most of the tensile force, reduce the tensile force on the weft yarn, and protect the weft yarn to prevent it from breaking under large tensile force, which would make the whole piece of fabric unusable. Since the reinforcing yarn itself has strong tensile strength, the fabric as a whole can also have strong tensile strength. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the internal structure of this application;

[0021] Figure 3 This is a schematic diagram of the reinforcing yarn structure of this application;

[0022] Figure 4 This is a schematic diagram of the weft yarn structure of this application.

[0023] In the diagram: 1. Greige fabric body; 11. Weft yarn; 111. Loop section; 112. Looping section; 12. Reinforcing yarn; 121. Stringing section; 122. Connecting transition section; 101. Wrapping fiber; 102. Tensile fiber; 201. Synthetic fiber. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Reference Figure 1-2A high-strength knitted fabric includes a fabric body 1, which is formed by interlacing weft yarns 11 and reinforcing yarns 12. The fabric body 1 is mainly composed of weft yarns 11 bent into loops by knitting needles and interlocked. A reinforcing yarn 12 is threaded between every three adjacent weft yarns 11. The reinforcing yarn 12 includes a vertically arranged connecting section 121 and a horizontally arranged connecting transition section 122. The connecting section 121 connects three adjacent weft yarns 11 in series, and adjacent reinforcing yarns 12 are connected by a lower reinforcing yarn 12. The connection is achieved by connecting the upper reinforcing yarn 12 to the connecting transition section 122 of the connecting section 121. By adopting the above technical solution, the reinforcing yarn 12 and the weft yarn 11 can be tightly interwoven together. At the same time, each reinforcing yarn 12 is also interwoven with each other. This allows the less elastic reinforcing yarn 12 to act as the main force-bearing structure to share most of the tension, reduce the tension on the weft yarn 11, and protect the weft yarn 11 to prevent it from breaking under large tension, which would make the whole piece of fabric unusable.

[0026] Reference Figure 2 The weft yarn 11 is bent by knitting needles to form loop segments 111 and loop sections 112 arranged in an array. Adjacent loop segments 111 and loop sections 112 are interlocked. By adopting the above technical solution, the weft yarn 11 can be interwoven to form a porous integral sheet structure with good air permeability. In addition, the reinforcing yarn 12 is threaded between the interlocking connection points of the loop segments 111 and loop sections 112. This structure allows the reinforcing yarn 12 to be tightly interwoven with the weft yarn 11, thereby transferring the tension on the weft yarn 11 to the reinforcing yarn 12, so that the reinforcing yarn 12 can bear the main tension.

[0027] Reference Figure 3 The reinforcing yarn 12 includes an inner reinforcing core and an outer wrapping fiber 101. The reinforcing core is composed of several tensile fibers 102. The wrapping fiber 101 and the tensile fibers 102 are twisted and shaped together to form a yarn. By adopting the above technical solution, the wrapping fiber 101 can play a skin-friendly role, avoiding direct contact between the inner tensile fibers 102 and the human body, which may cause skin discomfort. The tensile fibers 102, as a load-bearing structure, ensure that the reinforcing yarn 12 as a whole has strong tensile strength. The wrapping fiber 101 is a fine filament structure of cotton or other skin-friendly materials, and the tensile fiber 102 is a fine filament structure of polypropylene. The cotton or other skin-friendly wrapping fiber 101 can improve the overall skin-friendliness of the reinforcing yarn 12 and improve the comfort of people when using it, while the polypropylene material can ensure that the tensile fiber 102 has strong tensile strength.

[0028] Reference Figure 4The weft yarn 11 is made by twisting and shaping several synthetic fibers 201 together. The synthetic fiber 201 is a fine filament structure of polyester. By adopting the above technical solution, the overall tensile strength of the weft yarn 11 can be improved, thereby further improving the overall tensile strength of the fabric.

[0029] Working principle: Since the weft yarn 11 and the reinforcing yarn 12 are interwoven, and the reinforcing yarn 12 is threaded between the loop section 111 and the loop section 112 of the weft yarn 11, the reinforcing yarn 12 and the weft yarn 11 are tightly interwoven. At the same time, each reinforcing yarn 12 is also interwoven with each other. Thus, the less elastic reinforcing yarn 12 can act as the main force-bearing structure to share most of the tensile force, reduce the tensile force on the weft yarn 11, and protect the weft yarn 11 to prevent it from breaking under large tensile force, making the whole piece of fabric unusable. Since the reinforcing yarn 12 is composed of an inner reinforcing core and an outer wrapping fiber 101, and the reinforcing core is composed of several tensile-resistant polypropylene fibers 102 with high tensile strength, it can ensure that the reinforcing yarn 12 has strong tensile strength as a whole, so that it can always bear most of the tensile force during the use of the fabric and maintain the high tensile performance of the fabric.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-strength knitted fabric, comprising a fabric body (1), characterized in that, The fabric body (1) is made of weft yarns (11) and reinforcing yarns (12) interwoven with each other. The fabric body (1) is mainly made of weft yarns (11) bent into loops by knitting needles and interlocked with each other. Reinforcing yarns (12) are threaded between every three adjacent weft yarns (11). The reinforcing yarns (12) include vertically arranged connecting sections (121) and horizontally arranged connecting transition sections (122). The connecting sections (121) connect three adjacent weft yarns (11) in series, and the adjacent reinforcing yarns (12) are connected by connecting the connecting section (121) of the lower reinforcing yarn (12) to the connecting transition section (122) of the upper reinforcing yarn (12).

2. The high-strength knitted fabric according to claim 1, characterized in that, The weft yarn (11) is bent by knitting needles to form looped segments (111) and hanging segments (112) arranged in an array, with adjacent looped segments (111) and hanging segments (112) being interconnected.

3. The high-strength knitted fabric according to claim 2, characterized in that, The reinforcing yarn (12) is threaded between the loop section (111) and the hanging section (112) that are interlocked.

4. The high-strength knitted fabric according to claim 1, characterized in that, The reinforcing yarn (12) includes an inner reinforcing core and an outer wrapping fiber (101). The reinforcing core is composed of several tensile fibers (102). The wrapping fiber (101) and the tensile fiber (102) are twisted together to form a yarn.

5. The high-strength knitted fabric according to claim 4, characterized in that, The wrapping fiber (101) is a filament structure of cotton or other skin-friendly material, and the tensile fiber (102) is a filament structure of polypropylene.

6. The high-strength knitted fabric according to claim 1, characterized in that, The weft yarn (11) is made by twisting and shaping several synthetic fibers (201) together, and the synthetic fibers (201) are polyester filaments.