Weaving method of double-yarn multi-layer fabric

Abstract

The invention discloses a weaving method of a double-yarn multi-layer fabric. Relates to the technical field of weft knitting. The method comprises the following steps: S1, specification of yarns: taking yarns of 75-100de as rough yarns, and taking yarns of 30-60de as fine yarns; s2, weaving of a texture: weaving on a weft knitting double-faced loom by using two knitting needles A and B, adopting double-faced texture, and forming 12 paths of double yarns on a surface layer, 12 paths of double yarns on an inner layer and 12 paths of connecting lines; rough yarn and spun yarn are fed through the same yarn feeding nozzle at the same time, the rough yarn is located on the outer side, and the spun yarn is located on the inner side; the arrangement mode of knitting needles is ABAB, four needles form a cycle, 12 knitting paths form a cycle, and the 12 paths are all looping weave cycles to form a double-yarn weave; weaving of the inner-layer double-yarn weave: weaving of the surface-layer double-yarn weave; and connection: the connecting lines move back and forth between the surface-layer double-yarn weave and the inner-layer double-yarn weave, and the surface-layer double-yarn weave and the inner-layer double-yarn weave are in mirror symmetry and are connected through the connecting lines.

Description

Technical Field

[0001] The invention relates to the technical field of weft knitting, and in particular to a weaving method of a double-yarn multi-layer fabric. Background Art

[0002] Knitted fabrics have a larger pore structure than woven fabrics. When there is a need for thermal insulation, knitted fabrics are usually woven in multiple layers. However, multi-layer fabrics are generally easy to deform and prone to technical problems such as snagging and ribs.

[0003] Therefore, how to improve the weaving method of multi-layer fabrics and improve the structural stability of multi-layer fabrics has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] In response to the above technical problems, the present invention provides a weaving method for a double-yarn multi-layer fabric with a stable structure and resistance to deformation and snagging.

[0005] The technical solution of the present invention is: A weaving method for double-yarn multi-layer fabrics, S1: Yarn specifications: The yarn with 75-100 de is coarse yarn, and the yarn with 30-60 de is fine yarn. S2: Weaving of tissue: The weft knitting machine uses two types of needles, A and B, to knit the double-sided weave. The double yarns on the surface layer are 12-way, the double yarns on the inner layer are 12-way, and the connecting yarns are 12-way. Weaving of the surface double yarn structure: the coarse yarn and the spun yarn are fed simultaneously through the same yarn feeding nozzle, the coarse yarn is on the outside and the spun yarn is on the inside, the first coarse yarn covers the first spun yarn, the second coarse yarn covers the second spun yarn, and so on, until the 12th coarse yarn covers the 12th spun yarn; the arrangement of the knitting needles is ABAB, 4 needles per cycle, the number of knitting routes is 12 routes per cycle, and the 12 routes are all loop-forming loops, forming a double yarn structure; The weaving of the inner double yarn structure is the same as the weaving of the outer double yarn structure; Connection: The connecting line travels back and forth between the surface double yarn structure and the inner double yarn structure. The surface double yarn structure and the inner double yarn structure are mirror-symmetrical and are connected by the connecting line.

[0006] The round-trip frequency of the connecting line is one of full connection, every other line connection, and every other line connection.

[0007] The thread feeding length of the coarse yarn is 28-32 cm / 100 needles, the thread feeding length of the spun yarn is 26-28 cm / 100 needles, and the thread feeding length of the connecting thread is 26-34 cm / 100 needles.

[0008] The fineness of the connecting wire is 30 to 100 de.

[0009] The tension of the connecting line is set to 4-6g.

[0010] The present invention provides a weaving method for a double-yarn multi-layer fabric, which forms a double-yarn structure on both the surface and inner layers of the fabric, and then connects the two double-yarn structures through a connecting line, so that the fabric forms a five-layer structure with a certain thickness and improved thermal insulation performance; at the same time, since the double-yarn structure adopts a structural form in which thick and thin yarns are arranged inside and outside, the friction between the yarns is significantly improved, the yarn structure is highly stable, the yarn is not easily flipped during production, and the fabric surface is smooth; in the application of the fabric, the fabric is also not prone to problems such as deformation and snagging.

[0011] The present invention innovatively adopts a double-yarn weaving structure and a unique yarn arrangement design, which makes the fabric have excellent wrinkle-resistant and anti-snagging properties. It can be widely used in clothing fields such as hoodies and jackets that have certain thermal insulation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the double-yarn multi-layer fabric of the present invention.

[0013] In the figure: 1- coarse yarn; 2- fine yarn; 3- connecting thread. DETAILED DESCRIPTION

[0014] The following is combined with Figure 1 , further illustrating the present invention. The inner side referred to herein refers to the direction toward the inside of the fabric, and the outer side refers to the direction away from the fabric.

[0015] A weaving method for double-yarn multi-layer fabrics of the present invention, A weaving method for double-yarn multi-layer fabrics, S1: Yarn specifications: The yarn with a density of 75 to 100 de is used as the coarse yarn 1, and the yarn with a density of 30 to 60 de is used as the fine yarn 2. The yarn can be polyester yarn. Depending on the application scenario, the yarn can be glossy, semi-gloss, or matte, or a combination of different yarns. The yarn can be twisted or non-twisted.

[0016] S2: Weaving of tissue: The double-sided weaving machine is knitted with two kinds of needles, A and B, using a double-sided weave, with 12-way double yarn on the surface layer, 12-way double yarn on the inner layer, and 12-way connecting thread 3. Weaving of the surface double yarn structure: coarse yarn 1 and fine yarn 2 are fed simultaneously through the same yarn feeding nozzle, coarse yarn 1 is on the outside and fine yarn 2 is on the inside, the first coarse yarn 1 covers the first fine yarn 2, the second coarse yarn 1 covers the second fine yarn 2, and so on, until the 12th coarse yarn 1 covers the 12th fine yarn 2; the arrangement of knitting needles is ABAB, 4 needles per cycle, the number of knitting routes is 12 routes per cycle, and the 12 routes are all loop-forming loops to form a double yarn structure; the coil structure of coarse yarn 1 is set outside the coil structure of fine yarn 2 to form a two-layer structure.

[0017] The weaving of the inner double yarn structure is the same as the weaving of the outer double yarn structure; similarly, the coil structure of the inner coarse yarn 1 is set outside the coil structure of the inner fine yarn 2, also forming a two-layer structure.

[0018] Connection: Connecting thread 3 runs back and forth between the surface double yarn structure and the inner double yarn structure. The surface double yarn structure and the inner double yarn structure are mirror-symmetrical and connected by connecting thread 3. Connecting thread 3 connects and fixes the two layers of the surface structure with the two layers of the inner structure, improving the flatness and stability of the fabric and preventing deformation.

[0019] The frequency of the connecting line 3 is one of full connection, every other connection, and every other connection. Full connection means that the connecting line 3 goes back and forth between each corresponding number of the surface double yarn and the inner double yarn. Every other connection means that the connecting line 3 goes back and forth between the adjacent numbers of the surface double yarn and the inner double yarn. For example, the path of the connecting line 3 goes from the first path of the surface double yarn to the second path of the inner double yarn, then to the third path of the surface double yarn, then to the fourth path of the inner double yarn, and so on. Figure 1 Every other two routes connection means that the connecting line 3 goes back and forth between the adjacent second routes of the surface double yarn and the inner double yarn. For example, the path of the connecting line 3 is from the first route of the surface double yarn to the third route of the inner double yarn, then to the fifth route of the surface double yarn, then to the seventh route of the inner double yarn, and so on.

[0020] The feeding length of the coarse yarn 1 is 28 to 32 cm / 100 stitches, the feeding length of the spun yarn 2 is 26 to 28 cm / 100 stitches, and the feeding length of the connecting thread 3 is 26 to 34 cm / 100 stitches.

[0021] The fineness of the connecting wire 3 is 30 to 100 de.

[0022] The tension of the connecting wire 3 is set to 4 to 6 g.

[0023] In the application of double-yarn multi-layer fabrics, the woven fabric is washed, set, and then dyed, and then post-finished and finalized according to functional requirements. In the finalizing process, the fabric can be impregnated or sprayed with functional coatings to give it specific functions, such as waterproof, antibacterial, antistatic, etc.; in the finalizing process, a heat setting machine is used to control the width and density of the fabric to keep the fabric regular and uniform in weight, improve the flatness of the fabric, and the setting temperature is set at 160°C. The finished fabric weighs 150-300g / m 2 .

[0024] Regarding the contents disclosed in the present invention, the following points need to be explained: (1) The embodiments disclosed in the present invention are merely examples, and any technical solution implemented by other equivalent alternative technical means shall fall within the scope of protection of the present invention; (2) In the absence of conflict, the technical features disclosed in the present invention may be combined with each other to obtain new embodiments; The above are only specific implementation methods disclosed in the present invention, but the protection scope of the present invention is not limited thereto. Technical solutions obtained by those skilled in the art after modifying or transforming certain technical features based on the contents disclosed in the present invention should all fall within the protection scope of the present invention.

Claims

1. A method for weaving double-yarn multi-layer fabrics, characterized in that: S1: Yarn specifications: The yarn with 75-100 de is coarse yarn, and the yarn with 30-60 de is fine yarn. S2: Weaving of tissue: The weft knitting machine uses two types of needles, A and B, to knit the double-sided weave. The double yarns on the surface layer are 12-way, the double yarns on the inner layer are 12-way, and the connecting yarns are 12-way. Weaving of the surface double yarn structure: the coarse yarn and the spun yarn are fed simultaneously through the same yarn feeding nozzle, the coarse yarn is on the outside and the spun yarn is on the inside, the first coarse yarn covers the first spun yarn, the second coarse yarn covers the second spun yarn, and so on, until the 12th coarse yarn covers the 12th spun yarn; the arrangement of the knitting needles is ABAB, 4 needles per cycle, the number of knitting routes is 12 routes per cycle, and the 12 routes are all loop-forming loops, forming a double yarn structure; The weaving of the inner double yarn structure is the same as the weaving of the outer double yarn structure; Connection: The connecting line travels back and forth between the surface double yarn structure and the inner double yarn structure. The surface double yarn structure and the inner double yarn structure are mirror-symmetrical and are connected by the connecting line.

2. The weaving method of a double-yarn multi-layer fabric according to claim 1, characterized in that: The round-trip frequency of the connecting line is one of full connection, every other line connection, and every other line connection.

3. The weaving method of a double-yarn multi-layer fabric according to claim 1, characterized in that: The thread feeding length of the coarse yarn is 28-32 cm / 100 needles, the thread feeding length of the spun yarn is 26-28 cm / 100 needles, and the thread feeding length of the connecting thread is 26-34 cm / 100 needles.

4. The method for weaving a double-yarn multi-layer fabric according to claim 1, characterized in that: The fineness of the connecting wire is 30 to 100 de.

5. The weaving method of double-yarn multi-layer fabric according to claim 3, characterized in that: The tension of the connecting line is set to 4-6g.

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