High-elastic polyester gray fabric

Through the staggered structure of inner and outer layers and specific weaving structure, combined with high-elastic yarn and breathable yarn, the problem of decreased breathability of knitted fabrics when the elasticity is increased is solved, and the balance of high elasticity and breathability is achieved.

CN223355149UActive Publication Date: 2025-09-19WUJIANG YUEZE WARP KNITTING CO LTD
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Patent Information

Application Number
CN202422828116.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-09-19
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Existing knitted fabrics have a problem of decreased air permeability when increasing elasticity, making it difficult to improve resilience while maintaining good air permeability.

Method used

It adopts an inner and outer layer staggered structure. The inner layer is woven alternately by ridge knitting and rib structure, and the outer layer is woven alternately by transfer loop and rib structure. Combined with high-elastic yarn and breathable yarn, the inner layer has greater resilience than the outer layer, and the outer layer has good air permeability. The ductility and breathability are improved through the design of stretch holes, stretch spaces, breathable grooves and ventilation grooves.

Benefits of technology

The elasticity and ductility of the knitted fabric are improved while maintaining breathability, and the overall shape retention and breathability of the grey fabric are enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-elasticity terylene gray fabric, which relates to the technical field of textiles, and is characterized in that a plurality of stretching holes arranged in an array are formed in a ventilation part in a penetrating manner, and a plurality of rebound strips I and a plurality of rebound strips II are respectively arranged on two sides of a rebound part; a first stretching space is formed by gaps between the adjacent first springback strips and the springback portion and the ventilation portion, a second stretching space is formed by gaps between the first springback strips and the first fixing portion and the second fixing portion, and a plurality of ventilation grooves communicated with the first stretching space and the second stretching space are formed in the springback portion in a penetrating mode. The outer layer made of the polyester profiled fibers and the bamboo charcoal fibers has good air permeability, the extensibility and the air permeability of the outer layer are improved through the stretching holes, the rebound resilience of the inner layer is larger than that of the outer layer, and therefore when the inner layer and the outer layer are stretched together, the inner layer can generate large resilience force, and the elasticity of the inner layer is improved. Therefore, the outer layer is driven to quickly recover after being stretched, and the overall shape maintaining performance of the gray fabric is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of textiles, and more particularly to a high-elastic polyester grey cloth. Background Art

[0002] Greige fabric is a fabric woven from yarn and is the main material used to make clothing that people wear every day. Existing grey fabrics are divided into knitted fabrics and woven fabrics. Knitted fabrics usually have good breathability and are usually used to make coats, T-shirts, underwear, tights and other clothing.

[0003] However, the good air permeability of knitted fabrics comes from their loose weaving structure, so the resilience of knitted fabrics is relatively poor. As the number of times they are worn increases, they tend to lose elasticity and become loose and deformed. In order to improve the elasticity of knitted fabrics, the weaving density is usually increased or chemical fibers with good elasticity are selected for weaving. However, increasing the weaving density will reduce the size of the gaps formed by the weaving, and the air permeability of chemical fibers is relatively poor, so that while the elasticity of the knitted fabric is increased, the air permeability is reduced.

[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the utility model is to provide a high-elastic polyester fabric, which improves the elasticity and air permeability of the knitted fabric through a new structural setting.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: a high-elastic polyester grey cloth, comprising an inner layer and an outer layer fixedly connected to each other, the outer layer comprising a plurality of breathable portions and a plurality of fixed portions 1 staggered along its length direction, the breathable portion being penetrated by a plurality of stretching holes arranged in an array, the inner layer comprising a plurality of rebound portions and a plurality of fixed portions 2 staggered along its length direction, a plurality of rebound strips 1 and a plurality of rebound strips 2 being respectively provided on both sides of the rebound portion, the gaps between adjacent rebound strips 1 and the rebound portion and the breathable portion forming a stretching space 1, the gaps between the rebound strips 1 and the fixed portion 1 and the fixed portion 2 forming a stretching space 2, the rebound portion being penetrated by a plurality of breathable grooves interconnected with the stretching space 1 and the stretching space 2.

[0007] The utility model is further configured as follows: the width of the breathable portion is the same as the width of the rebound portion, the width of the fixed portion one is the same as the width of the fixed portion two, the breathable portion and the fixed portion one are respectively located directly above the rebound portion and the fixed portion two, and the stretching hole and the stretching space one are interconnected.

[0008] The utility model is further configured as follows: a side of a plurality of rebound strips away from the inner layer is abutted against a side of the breathable part close to the inner layer; the fixing part 1 and the fixing part 2 are fixed by sewing with high-elastic yarn; and the rebound elasticity of the rebound part is greater than the rebound elasticity of the breathable part.

[0009] The utility model is further configured as follows: a plurality of the ventilation grooves are arranged in an array along the length direction of the rebound portion, the length of the ventilation groove is greater than the width of the rebound portion, and both ends of the ventilation groove are respectively located on the adjacent second fixing portion.

[0010] The utility model is further configured as follows: a ventilation groove 1 is arranged between the adjacent second rebound strip and the rebound part, a ventilation groove 2 is arranged between the adjacent rebound part and the second fixing part, and the ventilation groove 1 and the ventilation groove 2 are both communicated with the breathable groove.

[0011] The utility model is further configured as follows: the inner layer is made by alternately weaving high-elastic yarn through a warp knitting structure and a rib structure; the high-elastic yarn is formed by twisting multiple first strands of yarn; the first strands are formed by twisting polyester shaped fibers with a cross-shaped cross-section; the weaving density of the inner layer is greater than the weaving density of the outer layer.

[0012] The utility model is further configured as follows: the outer layer is made by alternately weaving breathable yarn through a transfer structure and a rib structure; the breathable yarn is made by spirally winding a second strand around a first strand; and the second strand is made by twisting bamboo fiber.

[0013] In summary, the utility model has the following beneficial effects: the ductility of the outer layer is improved by a plurality of stretching holes, the ductility of the entire grey cloth is further improved by a plurality of stretching spaces 1 and 2, the internal voids and surface area are increased after the polyester fiber is shaped, thereby improving the air permeability of the polyester fiber, the bamboo charcoal fiber has good air permeability, so that the outer layer made of polyester shaped fiber and bamboo charcoal fiber has good air permeability, the plurality of stretching holes further enhances the air permeability of the outer layer, and the ribbed structure and the rib structure are relatively The inner layer woven alternately with high weaving density has strong resilience, so that when the inner layer and the outer layer are stretched together, the inner layer can generate a larger rebound force, thereby driving the outer layer to quickly return to its original shape after stretching, thereby improving the overall shape retention of the grey cloth. A plurality of ventilation grooves 1 and a plurality of ventilation grooves 2 improve the air circulation effect between the inner layer and the skin. Through a plurality of interconnected stretching holes, breathable grooves, stretching space 1, stretching space 2, ventilation groove 1 and ventilation groove 2, the air circulation effect on both sides of the grey cloth is improved, thereby further enhancing the overall breathability of the grey cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 It is an exploded view of the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 This is a cross-section diagram of high-elastic yarn;

[0019] Figure 6 This is a cross-section diagram of breathable yarn.

[0020] In the figure: 1. Inner layer; 2. Outer layer; 3. Breathable part; 4. Fixed part 1; 5. Stretch hole; 6. Rebound part; 7. Fixed part 2; 8. Rebound strip 1; 9. Rebound strip 2; 10. Stretch space 1; 11. Stretch space 2; 12. Breathable groove; 13. High-elastic yarn; 14. Breathable groove 1; 15. Breathable groove 2; 16. First strand; 17. Breathable yarn; 18. Second strand. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0022] Example: A high elastic polyester fabric, such as Figure 1 、 Figure 2 and Figure 6 As shown, it includes an inner layer 1 and an outer layer 2 fixedly connected to each other, the outer layer 2 includes a plurality of breathable parts 3 and a plurality of fixed parts 4 staggered along its length direction, the breathable part 3 is penetrated by a plurality of stretching holes 5 arranged in an array, and the outer layer 2 obtains a larger stretching distance through the plurality of stretching holes 5, thereby improving the ductility of the outer layer 2. At the same time, the plurality of stretching holes 5 improve the air circulation effect on both sides of the outer layer 2, thereby improving the breathability of the outer layer 2. The outer layer 2 is made by feeding the breathable yarn 17 into the knitting machine and alternately weaving the transfer loop tissue and the rib tissue. The plurality of breathable parts 3 and the plurality of stretching holes 5 opened thereon are all formed integrally on the outer layer 2 by weaving the transfer loop tissue, and the plurality of fixed parts 4 are all formed integrally on the outer layer 2 by weaving the rib tissue. The fixed part 4 woven by the rib tissue has certain elasticity and resilience.

[0023] like Figure 1 and Figure 6As shown, the breathable yarn 17 is made by spirally winding a second strand 18 on a first strand 16 through a ring spinning machine, the first strand 16 is twisted by a twisting machine to form a polyester shaped fiber with a cross-shaped cross-section, and the polyester shaped fiber with a cross-shaped cross-section is spun through a spinneret. The air permeability and moisture absorption are improved by shaping the polyester fiber. The polyester shaped fiber has good elasticity and resilience, so that the prepared breathable yarn 17 can quickly recover to its original shape after stretching. The second strand 18 is twisted by a twisting machine to form bamboo charcoal fiber. The bamboo charcoal fiber has good elasticity and good air permeability. Therefore, the outer layer 2 made of the breathable yarn 17 has good air permeability while maintaining a certain elasticity.

[0024] like Figure 1-Figure 5 As shown, the inner layer 1 includes a plurality of elastic parts 6 and a plurality of fixed parts 7 staggered along its length direction, a plurality of elastic strips 8 are provided on the side of the elastic part 6 close to the outer layer 2, and a plurality of elastic strips 9 are provided on the side of the elastic part 6 away from the outer layer 2, and the plurality of elastic strips 8 and the plurality of elastic strips 9 are staggered along the length direction of the inner layer 1. The inner layer 1 is made by feeding high elastic yarn 13 into a knitting machine and alternately weaving it through a furrow knitting structure and a rib structure. The plurality of elastic parts 6 and the plurality of elastic strips 8 and the plurality of elastic strips 9 on both sides are all formed integrally on the inner layer 1 through the weaving method of the furrow knitting structure, and the plurality of fixed parts 7 are all formed integrally on the inner layer 1 through the weaving method of the rib structure. The elastic strips 1 and 9 woven by the furrow knitting structure are The fixed part 2 7 woven by the part 6 and the rib structure has good elasticity and resilience. The high-elastic yarn 13 is twisted by a twisting machine to form three first strands of yarn 16. The weaving density of the inner layer 1 is greater than the weaving density of the outer layer 2. Therefore, the resilience of the inner layer 1 is greater than the resilience of the outer layer 2, so that when the inner layer 1 and the outer layer 2 are stretched together, the inner layer 1 can generate a larger rebound force, thereby driving the outer layer 2 to quickly return to its original shape after stretching, thereby improving the overall shape retention of the grey cloth. The width of the breathable part 3 is the same as the width of the rebound part 6, and the width of the fixed part 1 4 is the same as the width of the fixed part 2 7. The breathable part 3 and the fixed part 1 4 are respectively located directly above the rebound part 6 and the fixed part 2 7, so that the stretching hole 5 and the stretching space 10 are interconnected.

[0025] like Figures 1-4As shown, the side of the plurality of rebound strips 8 away from the inner layer 1 is offset against the side of the breathable part 3 close to the inner layer 1, and the plurality of rebound strips 8 can provide good support for the breathable part 3, and can support the breathable part 3 to return to its original shape when stretched and rebounded by the plurality of rebound strips 8. The fixed part 14 and the fixed part 27 are fixed by reciprocating stitching using a high-elastic yarn 13 on a sewing machine, so that the gap between the adjacent rebound strips 18 and the rebound part 6 and the breathable part 3 forms a stretching space 10, and the gap between the rebound strips 8 and the fixed part 14 and the fixed part 27 forms a stretching space 2 11. The stretching space 10 and the stretching space 2 11 improve the overall ductility of the grey cloth, and a laser cutting machine is used to penetrate the rebound part 6 to open a plurality of long breathable grooves 12. Due to the thermal effect of the laser, better flatness and edge sealing effect can be achieved at the cut edge, thereby preventing the rebound part 6 from falling apart after the plurality of breathable grooves 12 are opened, and the breathable effect of the inner layer 1 is improved by the plurality of breathable grooves 12.

[0026] like Figures 1-4 As shown, a ventilation groove 14 is set between the adjacent rebound strip 2 9 and the rebound part 6, and a ventilation groove 2 15 is set between the adjacent rebound part 6 and the fixed part 2 7. The air circulation effect between the inner layer 1 and the skin is improved by the plurality of ventilation grooves 14 and the plurality of ventilation grooves 2 15. The plurality of breathable grooves 12 are arranged in an array along the length direction of the rebound part 6. The length of the breathable groove 12 is greater than the width of the rebound part 6. The two ends of the breathable groove 12 are respectively located on the adjacent fixed part 2 7, so that the plurality of breathable grooves 12 are interconnected with the plurality of stretching spaces 10, the plurality of stretching spaces 2 11, the plurality of ventilation grooves 14 and the plurality of ventilation grooves 2 15. The air circulation effect on both sides of the grey cloth is improved by the plurality of interconnected stretching holes 5, the ventilation grooves 12, the stretching space 10, the stretching space 2 11, the ventilation grooves 14 and the ventilation grooves 2 15, thereby further enhancing the overall breathability of the grey cloth.

[0027] like Figures 1-6 As shown, when it is necessary to produce this kind of high-elastic polyester fabric, first use a laser cutting machine to penetrate the woven inner layer 1 at its several rebound parts 6 to open a number of breathable grooves 12, then lay the inner layer 1 with the several breathable grooves 12 cut out flat and make the side with the several rebound strips 8 face upward, cover the woven outer layer 2 on the inner layer 1, and move the outer layer 2 so that the breathable part 3 and the fixed part 1 4 are located directly above the rebound part 6 and the fixed part 2 7 respectively, and finally use a sewing machine to sew the fixed part 1 4 and the fixed part 2 7 back and forth to fix them, thereby completing the production of this kind of high-elastic polyester fabric.

[0028] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A highly elastic polyester fabric comprising an inner layer (1) and an outer layer (2) fixedly connected to each other, characterized in that: The outer layer (2) includes a plurality of breathable parts (3) and a plurality of fixed parts (4) staggered along its length direction, and the breathable part (3) is provided with a plurality of stretching holes (5) arranged in an array. The inner layer (1) includes a plurality of rebound parts (6) and a plurality of fixed parts (7) staggered along its length direction, and a plurality of rebound strips (8) and a plurality of rebound strips (9) are provided on both sides of the rebound part (6). The gaps between the adjacent rebound strips (8) and the rebound part (6) and the breathable part (3) form a stretching space (10), and the gaps between the rebound strips (8) and the fixed part (4) and the fixed part (7) form a stretching space (11). The rebound part (6) is provided with a plurality of breathable grooves (12) connected to the stretching space (10) and the stretching space (11).

2. The high-elastic polyester fabric according to claim 1, characterized in that: The width of the breathable portion (3) is the same as the width of the rebound portion (6), the width of the fixed portion 1 (4) is the same as the width of the fixed portion 2 (7), the breathable portion (3) and the fixed portion 1 (4) are respectively located directly above the rebound portion (6) and the fixed portion 2 (7), and the stretching hole (5) and the stretching space 1 (10) are interconnected.

3. The high-elastic polyester fabric according to claim 2, characterized in that: The side of the plurality of rebound strips (8) away from the inner layer (1) is in contact with the side of the breathable portion (3) close to the inner layer (1), the fixing portion (4) and the fixing portion (7) are fixed by sewing together with a high-elastic yarn (13), and the rebound elasticity of the rebound portion (6) is greater than the rebound elasticity of the breathable portion (3).

4. The high-elastic polyester fabric according to claim 3, characterized in that: A plurality of the vent grooves (12) are arranged in an array along the length direction of the rebound portion (6), the length of the vent grooves (12) is greater than the width of the rebound portion (6), and the two ends of the vent grooves (12) are respectively located on the adjacent second fixing portion (7).

5. The high-elastic polyester fabric according to claim 4, characterized in that: A ventilation groove (14) is provided between the adjacent second rebound strip (9) and the rebound portion (6), and a ventilation groove (15) is provided between the adjacent rebound portion (6) and the second fixing portion (7). Both the ventilation groove (14) and the ventilation groove (15) are communicated with the breathable groove (12).

6. The high-elastic polyester fabric according to claim 3, characterized in that: The inner layer (1) is made by alternately weaving high-elastic yarn (13) through a rib knitting structure and a rib structure, the high-elastic yarn (13) is twisted by a plurality of first strands (16), and the first strands (16) are twisted by polyester shaped fibers with a cross-shaped cross section, and the weaving density of the inner layer (1) is greater than the weaving density of the outer layer (2).

7. The high-elastic polyester fabric according to claim 6, characterized in that: The outer layer (2) is made by alternately weaving a breathable yarn (17) through a transfer weave and a rib weave, and the breathable yarn (17) is made by spirally winding a second strand (18) around a first strand (16), and the second strand (18) is twisted by bamboo fiber.