Warm-keeping fabric
By interlacing warp and weft yarns to form a cavity and a groove structure that decreases from top to bottom, the problem of thick thermal fabrics being heavy and having poor breathability is solved, achieving a balance between warmth and breathability and improving the comfort of the fabric.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SCI TECH UNIV SHAOXING KEQIAO RES INST CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing thick thermal fabrics are heavy and have poor breathability, making it impossible to find a balance between maintaining warmth and breathability.
The first outer layer, the second outer layer, and the inner layer are formed by interlacing warp and weft yarns. A cavity is formed between the first outer layer and the inner layer, and a cavity is formed between the second outer layer and the inner layer. Grooves that gradually decrease in size from top to bottom are designed on the second outer layer to increase airflow and accelerate sweat evaporation.
This design achieves the goal of maintaining warmth while increasing the breathability of the fabric. By allowing airflow to accelerate sweat evaporation, it reduces moisture buildup and enhances the overall comfort of the fabric.
Smart Images
Figure CN224172968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabrics, and more specifically, to a thermal insulation fabric. Background Technology
[0002] Currently, the use of thickened thermal insulation fabrics has achieved the desired warmth, but the increased thickness makes the fabric heavy and less breathable. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a thermal fabric. It consists of a first outer layer, a second outer layer, and an inner layer formed by the interlacing of warp and weft yarns. A cavity is formed between the first outer layer and the inner layer, and the second outer layer forms four grooves. A cavity is also formed between the second outer layer and the inner layer. When the human body is stationary, still air is formed within the two cavities, effectively preventing heat loss. Because the opening width of the grooves gradually decreases from top to bottom, when the human body moves, sweat diffuses along the outer wall of the grooves, accelerating sweat evaporation through airflow. This creates air circulation within the cavities, thereby increasing the fabric's breathability.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a thermal insulation fabric, comprising an outer layer and an inner layer, wherein the outer layer and the inner layer are connected by a joint, the outer layer comprises an alternately distributed first outer layer and a second outer layer, a first cavity is formed between the first outer layer and the inner layer, the second outer layer comprises a plurality of grooves, and the opening of the grooves gradually decreases from top to bottom, and a second cavity is formed between the second outer layer and the inner layer.
[0005] The present invention is further configured such that the second surface layer includes four grooves, and the four grooves are arranged in a grid pattern.
[0006] The present invention is further configured such that the first surface layer and the second surface layer are of the same size.
[0007] The present invention is further configured such that the groove is in the shape of an inverted trapezoid, and the periphery of the groove is inclined at an angle of 30 to 60 degrees toward the center.
[0008] The present invention is further configured such that the upper opening of the groove is 1.2cm, the lower opening of the groove is 2mm, and the depth of the groove is 2mm-5mm.
[0009] The present invention is further configured such that the height of the first cavity is 2mm-5mm and the height of the second cavity is 2mm-5mm.
[0010] The present invention is further configured such that the fabric has a weave cycle of 64 warp yarns and 64 weft yarns. In one weave cycle, the odd number of warp yarns from the first to the sixth 64th warp yarns interweaves with the odd number of weft yarns from the first to the sixth 64th weft yarns to form the outer layer, and the double number of warp yarns from the first to the sixth 64th warp yarns interweaves with the even number of weft yarns from the first to the sixth 64th weft yarns to form the inner layer.
[0011] The present invention is further configured such that the odd number of warp yarns in the first to third warp yarns interweaves with the odd number of weft yarns in the first to third warp yarns to form the second surface layer, the odd number of warp yarns in the first to third warp yarns interweaves with the odd number of weft yarns in the third to sixth warp yarns to form the first surface layer, the odd number of warp yarns in the third to sixth warp yarns interweaves with the odd number of weft yarns in the first to third warp yarns to form the first surface layer, and the odd number of warp yarns in the third to sixth warp yarns interweaves with the odd number of weft yarns in the third to sixth warp yarns to form the second surface layer.
[0012] The present invention is further configured such that the odd number of warp yarns in the 1st to 32nd warp yarns interweaves with the odd number of weft yarns in the 1st to 32nd weft yarns to form the second surface layer, and the odd number of warp yarns in the 33rd to 64th warp yarns interweaves with the odd number of weft yarns in the 33rd to 64th weft yarns to form the inner part of the second surface layer, wherein each groove is formed by interweaving 8 warp yarns and 8 weft yarns.
[0013] In summary, this utility model has the following beneficial effects:
[0014] The fabric is formed by interlacing warp and weft yarns to create a first outer layer, a second outer layer, and an inner layer. A cavity is formed between the first outer layer and the inner layer, and a cavity is formed between the second outer layer and the inner layer. When the human body is at rest, still air forms in the cavity, thus preventing heat loss. The outer layer of the second unit forms four grooves, and the openings of the four grooves gradually decrease from top to bottom. When the human body moves, the airflow is increased through the upper opening, thereby accelerating the evaporation of sweat and creating air circulation in the cavity, thus increasing the breathability of the fabric. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a thermal insulation fabric in this embodiment;
[0016] Figure 2 for Figure 1 A sectional view along the A-A direction;
[0017] Figure 3 This is a weave diagram of a thermal insulation fabric in this embodiment.
[0018] Reference numerals: surface layer 100, first surface layer 101, second surface layer 102, groove 1021, inner layer 200, first cavity 300, second cavity 400. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figure 1 — Figure 3 As shown, this embodiment discloses a thermal insulation fabric. The fabric has a weave of 64 warp yarns and 64 weft yarns. In one weave cycle, the odd-numbered warp yarns of the 1st to 64th warp yarns interweave with the odd-numbered weft yarns of the 1st to 64th weft yarns to form the outer layer 100, and the even-numbered warp yarns of the 1st to 64th warp yarns interweave with the even-numbered weft yarns of the 1st to 64th weft yarns to form the inner layer 200. Therefore, the fabric includes the outer layer 100 and the inner layer 200. The 1st, 31st, and 63rd warp yarns interweave with the 32nd and 64th weft yarns to form a junction point. Since the 1st, 31st, and 63rd warp yarns are the warp yarns of the outer layer 100, and the 32nd and 64th weft yarns are the weft yarns of the inner layer 200, the outer layer 100 and the inner layer 200 are connected by the junction point, thereby reducing the thickness of the fabric and making the fabric lightweight.
[0021] In one weaving cycle, the odd-numbered warp yarns from warp yarns 1-64 interweave with the odd-numbered weft yarns from weft yarns 1-64 to form surface layer 100; the odd-numbered warp yarns from warp yarns 1-32 interweave with the odd-numbered weft yarns from weft yarns 1-32 to form second surface layer 102; the odd-numbered warp yarns from warp yarns 1-32 interweave with the odd-numbered weft yarns from weft yarns 33-64 to form first surface layer 101; and the odd-numbered warp yarns from warp yarns 33-64 interweave with the odd-numbered weft yarns from weft yarns 1-32... The odd-numbered weft yarns in the warp interweave to form the first surface layer 101, and the odd-numbered warp yarns in the 33rd-64th warp yarns interweave with the odd-numbered weft yarns in the 33rd-64th weft yarns to form the second surface layer 102. Therefore, the surface layer 100 includes an alternating first surface layer 101 and a second surface layer 102, and the first surface layer 101 and the second surface layer 102 are of equal size. This arrangement of equal-area alternating first surface layer 101 and second surface layer 102 avoids local stress concentration and improves performance. The fabric's durability is enhanced because the double warp yarns of the 1st to 64th warp yarns interweave with the even-numbered weft yarns of the 1st to 64th weft yarns to form the inner layer 200. The joints are located around the first outer layer 101 and the second outer layer 102. Since the first outer layer 101 has a plain weave structure, it has more weave points than the second outer layer 102. Therefore, at the same density, the first outer layer 101 is denser than the second outer layer 102 due to its greater number of weave points. Consequently, the weave points of the first outer layer 101 bulge due to compression. Thus, the first outer layer 101 and the inner layer 200 form a first cavity 300. The height of the first cavity 300 is 2mm-5mm, preferably 3mm. Therefore, still air is formed inside the first cavity 300, and the air storage capacity inside the first cavity 300 is relatively large, thereby effectively blocking heat.
[0022] Within the interlacing range of odd-numbered warp yarns in the 1st to 32nd warp yarns and odd-numbered weft yarns in the 1st to 32nd weft yarns, and odd-numbered warp yarns in the 33rd to 64th warp yarns and odd-numbered weft yarns in the 33rd to 64th weft yarns, the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, and 15th warp yarns interlaced with the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, and 15th weft yarns form a groove 1021. Therefore, the second surface layer 102 includes multiple grooves 1021, and each groove 1021 is formed by the interlacing of 8 warp yarns and 8 weft yarns. Therefore, within the interlacing range of odd-numbered warp yarns in the 1st to 32nd warp yarns and odd-numbered weft yarns in the 1st to 32nd weft yarns, the second surface layer 102 includes four grooves 1021, and the four grooves 1021... Arranged in a grid pattern, taking the groove 1021 formed by the interlacing of warp yarns 1, 3, 5, 7, 9, 11, 13, and 15 with weft yarns 1, 3, 5, 7, 9, 11, 13, and 15 as an example, within the area formed by the interlacing of groove 1021, there are 6 warp weaving points on the 1st warp yarn, 5 warp weaving points on the 3rd warp yarn, 3 warp weaving points on the 5th warp yarn, 2 warp weaving points on the 7th warp yarn, 1 warp weaving point on the 9th warp yarn, 2 warp weaving points on the 11th warp yarn, 3 warp weaving points on the 13th warp yarn, and 5 warp weaving points on the 15th warp yarn. Conversely, there are 7 weft weaving points on the 1st weft yarn, 6 weft weaving points on the 3rd weft yarn, and 5 weft weaving points on the 5th weft yarn. The weft stitch points are as follows: 3 on the 7th weft yarn, 2 on the 9th weft yarn, 3 on the 11th weft yarn, 5 on the 13th weft yarn, and 6 on the 15th weft yarn. Therefore, the number of stitch points gradually decreases from the periphery to the center of the groove 1021. Since the center warp and weft yarns have the fewest stitch points, the density of the warp and weft yarns gradually increases from the periphery to the center, even with the same fiber density. This creates a recessed groove 1021. The opening of the groove 1021 gradually decreases from top to bottom, with the upper opening being 1.2 cm and the lower opening being 2 mm. The depth of groove 1021 is 2mm-5mm, preferably 2.5mm. Therefore, groove 1021 is trapezoidal in shape. When the human body produces sweat, the four grooves 1021 of the second surface layer 102 allow the sweat to gradually diffuse along the outer wall of the grooves 1021, thereby accelerating the evaporation of sweat through air flow and increasing the breathability of the fabric. If the second surface layer 102 uses more than four grooves 1021, there will be too many grooves 1021, resulting in too many floating threads in the fabric, which can easily lead to fabric snagging and breakage, affecting the overall durability of the fabric. If the second surface layer 102 uses fewer than four grooves 1021, the sweat cannot be sufficiently discharged, causing the fabric to become more moist and affecting the fabric's warmth retention.
[0023] Because the four grooves 1021 of the second outer layer 102 are trapezoidal, and the openings of the grooves 1021 near the lower end of the inner layer 200 are small, a second cavity 400 is formed between the lower openings of the four grooves 1021 of the second outer layer 102 and the inner layer 200. Since the four sides of the grooves 1021 are inclined at an angle of 30-60 degrees, preferably 45 degrees, the second cavity 400 is smaller than the first cavity 300. The height of the second cavity 400 is 2mm-5mm, preferably 3mm. Therefore, when the human body is stationary, the first cavity 300 of the first outer layer 101 forms a static air layer, enhancing the fabric's warmth retention, while the second cavity... The second cavity 400 forms an auxiliary static air layer, increasing the overall warmth of the fabric. When the human body moves, the second cavity 400 has grooves 1021 around its perimeter, and the fiber tightness of the grooves 1021 gradually tightens from the upper opening to the lower opening. Therefore, the airflow at the upper opening of the grooves 1021 is greater than that at the lower opening, causing sweat to diffuse along the outer wall of the grooves 1021. The airflow formed inside the grooves 1021 accelerates the evaporation of sweat. The second cavity 400 is surrounded by grooves 1021, thus creating air circulation inside the second cavity 400. This, in turn, creates air circulation inside the first cavity 300 through the pores between the fibers, thereby increasing the breathability of the fabric.
[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A thermal insulation fabric, characterized in that, The system includes a surface layer (100) and an inner layer (200), which are connected by a connection point. The surface layer (100) includes an alternately distributed first surface layer (101) and a second surface layer (102). A first cavity (300) is formed between the first surface layer (101) and the inner layer (200). The second surface layer (102) includes a plurality of grooves (1021), and the opening of the grooves (1021) gradually decreases from top to bottom. A second cavity (400) is formed between the second surface layer (102) and the inner layer (200).
2. The thermal insulation fabric according to claim 1, characterized in that, The second surface layer (102) includes four grooves (1021), and the four grooves (1021) are arranged in a grid pattern.
3. The thermal insulation fabric according to claim 1, characterized in that, The first surface layer (101) is the same size as the second surface layer (102).
4. The thermal insulation fabric according to claim 1, characterized in that, The groove (1021) is in the shape of an inverted trapezoid, and the four sides of the groove (1021) are inclined at an angle of 30 degrees to 60 degrees toward the center.
5. The thermal insulation fabric according to claim 1, characterized in that, The upper opening of the groove (1021) is 1.2cm, the lower opening of the groove (1021) is 2mm, and the depth of the groove (1021) is 2mm-5mm.
6. The thermal insulation fabric according to claim 1, characterized in that, The height of the first cavity (300) is 2mm-5mm, and the height of the second cavity (400) is 2mm-5mm.
7. The thermal insulation fabric according to claim 1, characterized in that, The fabric has a weave of 64 warp yarns and 64 weft yarns. In one weave cycle, the odd number of warp yarns from the first to the sixth 64th warp yarns interweaves with the odd number of weft yarns from the first to the sixth 64th warp yarns to form the outer layer (100), and the even number of warp yarns from the first to the sixth 64th warp yarns interweaves with the even number of weft yarns from the first to the sixth 64th weft yarns to form the inner layer (200).
8. The thermal insulation fabric according to claim 7, characterized in that, The odd number of warp yarns in warp yarns 1-32 interweaves with the odd number of weft yarns in weft yarns 1-32 to form the second outer layer (102), the odd number of warp yarns in warp yarns 1-32 interweaves with the odd number of weft yarns in weft yarns 33-64 to form the first outer layer (101), the odd number of warp yarns in warp yarns 33-64 interweaves with the odd number of weft yarns in weft yarns 1-32 to form the first outer layer (101), and the odd number of warp yarns in warp yarns 33-64 interweaves with the odd number of weft yarns in weft yarns 33-64 to form the second outer layer (102).
9. A thermal insulation fabric according to claim 7, characterized in that, The second outer layer (102) is formed by interlacing the odd number of warp yarns in the 1st to 32nd warp yarns and the odd number of weft yarns in the 1st to 32nd weft yarns, and the second outer layer (102) is formed by interlacing the odd number of warp yarns in the 33rd to 64th warp yarns and the odd number of weft yarns in the 33rd to 64th weft yarns. The grooves (1021) are all formed by interlacing 8 warp yarns and 8 weft yarns.