A flexible spandex knit fabric

By using specific weaving structures and material combinations in the top and bottom layers, the problems of curling edges and hand feel in knitted fabrics have been solved, achieving better breathability and sweat wicking efficiency, and improving the fabric's fit and feel.

CN224408669UActive Publication Date: 2026-06-26FUJIAN ZONGDE TEXTILE TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN ZONGDE TEXTILE TECHNOLOGY CO LTD
Filing Date
2025-05-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing knitted fabrics exhibit significant edge curling due to the loss of elasticity in the yarns caused by edge bending, resulting in poor fabric feel and noticeable skewed loops.

Method used

The surface and bottom layers are woven in a loop system with four and twelve loops per loop. The surface layer uses single pique and rib knit, while the bottom layer uses colored bamboo pulp fiber and modified viscose fiber. The layers are connected by loops and the surface and bottom layers are stitched together using ultrasonic technology.

Benefits of technology

It improves the breathability and fit of the fabric, reduces curling and skewed loops, and enhances the softness and sweat-wicking efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of flexible spandex knitted fabric, belong to the technical field of knitted fabric, including surface layer and bottom layer, the surface layer adopts every four-way one loop system circular knitting, adopts front and back needle bed double knitting, first road and third road adopt single-bead ground stitch knitting as upper layer, second road and fourth road adopt rib weave as lower layer, and the upper layer and lower layer are connected by tuck, the surface layer of the utility model adopts every four-way one loop system circular knitting, in one loop system, first road and third road adopt single-bead ground stitch knitting as upper layer, second road and fourth road adopt rib weave as lower layer, and the upper layer and lower layer are connected by tuck, surface layer has obvious concave-convex effect, make skin and clothing appear a transmission channel, make sweat quickly discharge from human body, make the fabric prepared by knitted fabric more close-fitting and breathable, the upper layer and lower layer of surface layer all adopt brocade ammonia fiber, have the strength of brocade and the elasticity of spandex, to have better close-fitting wearability.
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Description

Technical Field

[0001] This utility model discloses a knitted fabric technology, and in particular relates to a flexible spandex knitted fabric. Background Technology

[0002] Fabric is the material used to make clothing. As one of the three essential elements of clothing, fabric not only interprets the style and characteristics of clothing, but also directly influences the color and shape of the garment. Three-dimensional fabrics are a type of personalized fabric; some have a three-dimensional feel, some have a three-dimensional appearance, and some combine both.

[0003] Existing knitted fabrics exhibit noticeable edge curling due to the loss of elasticity in the yarns caused by edge bending. Even in a free state, the loops are noticeably skewed, resulting in a poor fabric feel. Utility Model Content

[0004] The purpose of this invention is to provide a flexible spandex knitted fabric to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flexible spandex knitted fabric, comprising a surface layer and a bottom layer, wherein the surface layer is woven in a loop system with four rows per loop, and is double-sided woven with front and back needle beds. In one loop system, the first and third rows are woven with a single pique knit as the upper layer, and the second and fourth rows are woven with a rib knit as the lower layer, and the upper and lower layers are connected by tucking the loops together.

[0006] Preferably, the bottom layer is woven in a loop system with 12 loops per loop. In a loop system, odd-numbered loops and even-numbered loops are knitted in plain stitch on two needle beds to form the front and back sides, respectively, and the front and back sides are connected by tucking loops.

[0007] Preferably, the odd-numbered paths and even-numbered paths in the bottom layer are made of colored bamboo pulp fiber and modified viscose fiber, respectively.

[0008] Preferably, both the upper and lower layers of the surface layer are made of nylon-spandex fibers, in a blend of 80% nylon and 20% spandex.

[0009] Preferably, the top layer and the bottom layer are stitched together using an ultrasonic sewing machine.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] Firstly, the surface layer of this practical garment is woven in a loop system with four loops per loop. In one loop system, the first and third loops use a single pique knit as the upper layer, while the second and fourth loops use a rib knit as the lower layer. The upper and lower layers are connected by loops, giving the surface layer a distinct textured effect. This creates a transmission channel between the skin and the garment, allowing sweat to be quickly expelled from the body and released into the air. This makes the knitted fabric more breathable and comfortable against the skin. Both the upper and lower layers of the surface layer are made of nylon and spandex fibers, blended at 80% nylon and 20% spandex, combining the strength of nylon with the elasticity of spandex for better fit.

[0012] Secondly, the bottom layer adopts a loop knitting system with 12 loops per cycle. The front and back of the bottom layer are formed by connecting the loops at intervals. The texture is neat and the front and back are sparser than conventional plain knit fabrics. When the bottom layer is in direct contact with the skin, it forms point contact, which accelerates the transmission of sweat from the skin to the outer layer of the garment. It also has a soft hand feel, less curling, and improved fabric loop bending. Attached Figure Description

[0013] Figure 1 Create a simplified diagram of the surface layer's structure;

[0014] Figure 2 Create a simplified diagram for the underlying organization. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the present utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0016] A flexible spandex knitted fabric, comprising a face layer and a back layer, such as Figure 1As shown, the surface layer uses a four-row loop knitting system, employing double-sided knitting on both the front and back needle beds. It is fed simultaneously by double shunts on a flat knitting machine. Within each loop system, the first and third rows use a single pique knit as the upper layer, while the second and fourth rows use a rib knit as the lower layer. The upper and lower layers are connected by loops, creating a textured mesh fabric. The upper layer exhibits a longitudinal stripe effect, while the lower layer displays an interlaced triangular mesh structure, forming a "V" shape with a clear pattern. The lower layer's mesh is less prominent but still has a distinct textured effect, creating a transmission channel between the skin and clothing. This allows sweat to be quickly expelled from the body and released into the air, making the knitted fabric more breathable and comfortable against the skin. Both the upper and lower layers of the surface layer are made of nylon-spandex fibers, blended at 80% nylon and 20% spandex, combining the strength of nylon with the elasticity of spandex for better fit.

[0017] like Figure 2 As shown, the bottom layer uses a loop knitting system with 12 loops per cycle. In one loop knitting system, odd-numbered loops and even-numbered loops are knitted in plain stitch on two needle beds to form the front and back sides respectively. The front and back sides are connected by tucking loops, and the front and back sides of the bottom layer are formed by tucking loops at intervals. The texture is neat and the front and back sides are sparser than those of conventional plain knit fabrics. When the bottom layer is in direct contact with the skin, it forms point contact, which accelerates the transfer of sweat from the skin to the outer layer of the garment. It also has a soft hand feel, less curling, and improved fabric loop bending.

[0018] The odd-numbered and even-numbered layers in the bottom layer are made of colored bamboo pulp fiber and modified viscose fiber, respectively. The colored bamboo pulp fiber is made by injection molding before spinning, in which micron-sized pigments are directly added to the bamboo pulp and thoroughly stirred through a dynamic and static dual mixing process. This ensures that the fibers are fully integrated during the fiber reaction process, avoiding direct contact between chemical pigments and the human body and improving the wearing comfort of the knitted fabric. The modified viscose fiber is made by modifying the fabric with 15wt% polyvinyl alcohol, which gives it a wool-like feel and bulkiness, thus improving the overall softness and skin-friendliness of the knitted fabric.

[0019] The top and bottom layers are sewn together using an ultrasonic sewing machine. Ultrasonic welding is used at the seam between the top and bottom layers, eliminating the need for needles and thread, saving the need for frequent needle and thread changes, eliminating the broken thread joints of traditional thread sewing, and also allowing for neat local cutting and sealing of textiles.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flexible spandex knitted fabric, characterized in that: It includes a top layer and a bottom layer. The top layer is woven in a loop system with four rows per loop. It is woven on both sides of the front and back needle beds. In a loop system, the first and third rows are woven with a single pique knit as the top layer, and the second and fourth rows are woven with a rib knit as the bottom layer. The top and bottom layers are connected by tucking.

2. The flexible spandex knitted fabric according to claim 1, characterized in that: The bottom layer is woven in a loop system with 12 loops per loop. In a loop system, odd-numbered loops and even-numbered loops are knitted in plain stitch on two needle beds to form the front and back sides, respectively. The front and back sides are connected by tucking loops.

3. The flexible spandex knitted fabric according to claim 2, characterized in that: The odd-numbered paths and even-numbered paths in the bottom layer are made of colored bamboo pulp fiber and modified viscose fiber, respectively.

4. The flexible spandex knitted fabric according to claim 1, characterized in that: Both the upper and lower layers of the surface layer are made of nylon-methylene fiber.

5. The flexible spandex knitted fabric according to claim 1, characterized in that: The top and bottom layers are stitched together using an ultrasonic sewing machine.