Warm-keeping air layer fabric

Abstract

The utility model provides a warm-keeping air layer fabric which comprises a first base layer, an air layer and a second base layer which are connected in sequence, the air layer comprises a supporting piece with a wave-shaped section, and the supporting piece comprises a first protruding part protruding towards the direction of the first base layer and a second protruding part protruding towards the direction of the second base layer. The first convex part is glued with the first base layer, a first air cavity is formed between the back side of the first convex part and the second base layer, the second convex part is glued with the second base layer, and a second air cavity is formed between the back side of the second convex part and the first base layer; the supporting piece comprises a first structural layer and a second structural layer, and at least part of areas between the first structural layer and the second structural layer are not connected with each other to form an interlayer air cavity. The interlayer air cavity is formed between the first structural layer and the second structural layer of the supporting piece and separates the first air cavity from the second air cavity, so that the exchange rate of cold air and hot air in the first air cavity and the second air cavity is reduced, and the heat preservation effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile fabrics, in particular to a warm air layer fabric. Background Art

[0002] Air layer fabrics usually consist of a three-layer structure, including two surface layers and a relatively fluffy or air-cavity-forming air layer sandwiched between the two surface layers. The still air entrained in the air layer can reduce the heat transfer between the two surface layers, thereby achieving a warming effect. In the prior art, the air layer can be formed by a special textile process or by a multi-layer structure composite. The former has better fabric integrity, while the latter can obtain different types of air layers by adjusting the structure of the middle layer, and the product types are wider.

[0003] The patent document with the publication number CN214646368U discloses a highly warm air layer fabric, which includes a base layer, an air layer is arranged above the base layer, a hygroscopic layer is arranged above the air layer, a plurality of first convex points are arranged on the top of the base layer, the plurality of first convex points are distributed in a rectangular array, and the first convex points are bonded to the upper surface of the base layer by glue; a support member is arranged inside the air layer, the cross section of the support member is wavy, the wave crest of the support member is bonded to the hygroscopic layer by glue, and the wave trough of the support member is bonded to the base layer by glue. This technical solution forms a plurality of air cavities between the base layer and the hygroscopic layer by setting a support member with a wavy structure, thereby forming an air layer. However, when the fabric is squeezed, the air cavity is deformed, and gas exchange is easily generated between the outer air cavity near the base layer and the inner air cavity near the hygroscopic layer in the air layer, so that the heat transfer between the base layer and the hygroscopic layer is improved, affecting the warming effect. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a warm air layer fabric, which can reduce the exchange of cold and hot gases in the air layer, reduce heat transfer on both sides of the fabric, and improve the warming effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A thermal insulation air layer fabric comprises a first base layer, an air layer and a second base layer connected in sequence, the air layer comprises a support member with a wavy cross-section, the support member comprises a first convex portion protruding toward the first base layer and a second convex portion protruding toward the second base layer, the first convex portion is glued to the first base layer, a first air cavity is formed between the back side of the first convex portion and the second base layer, the second convex portion is glued to the second base layer, a second air cavity is formed between the back side of the second convex portion and the first base layer; the support member comprises a first structural layer and a second structural layer, at least a portion of the area between the first structural layer and the second structural layer is not connected to each other to form a sandwich air cavity.

[0007] The utility model forms an air layer including a first air cavity and a second air cavity through a wavy support member, and utilizes stagnant air in the first air cavity and the second air cavity to reduce the heat transfer rate between the first base layer and the second base layer, thereby improving the thermal insulation effect; at the same time, a sandwich air cavity is formed inside the support member, and the sandwich air cavity forms a secondary air layer between the first air cavity and the second air cavity, and the secondary air layer plays a buffering role, thereby further reducing the gas exchange rate in the first air cavity and the second air cavity; when the fabric is squeezed, resulting in the compression of the first air cavity and the second air cavity, the cold and hot air inside the two are not easy to circulate with each other, thereby improving the thermal insulation performance of the fabric when the fabric is squeezed.

[0008] Furthermore, the first structural layer and the second structural layer are connected via support blocks distributed in a point shape.

[0009] Furthermore, the distribution density of the support blocks is 4 to 8 per cm 2 .

[0010] Furthermore, the inner sides of the first structural layer and the second structural layer are both provided with a fluff layer, and the first structural layer and the second structural layer are connected by dispersedly distributed sutures.

[0011] Furthermore, a skin-friendly layer is connected to the outer side of the first base layer, and a wear-resistant layer is connected to the outer side of the second base layer.

[0012] Furthermore, the outer side of the wear-resistant layer is connected with a stain-resistant coating.

[0013] Furthermore, the weaving density of the first structural layer is greater than that of the first base layer, and the weaving density of the second structural layer is greater than that of the second base layer.

[0014] Furthermore, the skin-friendly layer is weft-knitted with skin-friendly yarns into rib structures and tuck structures at alternating intervals, and the wear-resistant layer is weft-knitted with wear-resistant yarns into rib structures and tuck structures at alternating intervals.

[0015] Furthermore, the skin-friendly yarn consists of elastic fibers and skin-friendly fibers wound around the elastic fibers.

[0016] Furthermore, the wear-resistant yarn consists of elastic fibers and wear-resistant fibers wound around the elastic fibers.

[0017] The application of the utility model can achieve the following beneficial effects:

[0018] 1. The utility model forms an air layer including an air cavity between the first base layer and the second base layer through the support member. The air layer can reduce the heat transfer rate between the first base layer and the second base layer and improve the thermal insulation effect.

[0019] 2. The support member of the utility model comprises a first structural layer and a second structural layer, and an interlayer air cavity is formed between the first structural layer and the second structural layer. The interlayer air cavity separates the first air cavity and the second air cavity, so that the exchange rate of cold and hot air in the first air cavity and the second air cavity is reduced, thereby further improving the thermal insulation effect.

[0020] 3. In some embodiments of the present invention, the textile density of the first / second structural layer is greater than that of the first / second base layer, which reduces the exchange rate of hot and cold air in the first air cavity and the second air cavity while ensuring the air permeability of the base layer, thereby improving the thermal insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a warm air layer fabric in one embodiment;

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of region A in the middle;

[0023] In the figure, 1-first base layer, 2-second base layer, 3-air layer, 31-support member, 311-first convex portion, 312-second convex portion, 313-first structural layer, 314-second structural layer, 315-sandwich air cavity, 316-support block, 32-first air cavity, 33-second air cavity, 4-skin-friendly layer, 5-wear-resistant layer. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0025] Reference Figure 1 and Figure 2The embodiment of the first aspect of the utility model provides a warm air layer fabric, which includes a first base layer 1 and a second base layer 2 in a planar structure and an air layer 3 sandwiched between the first base layer and the second base layer, a skin-friendly layer 4 close to the human skin when in use is glued to the outside of the first base layer, and a wear-resistant layer 5 away from the human skin when in use is glued to the outside of the second base layer;

[0026] The air layer 3 includes a support member 31, a first air cavity 32 and a second air cavity 33. The support member has a wavy structure and includes a first convex portion 311 protruding toward the first base layer 1 and a second convex portion 312 protruding toward the second base layer 2. The first convex portion 311 is glued to the first base layer 1, and the first air cavity 32 is formed between the back side of the first convex portion and the second base layer. The second convex portion 312 is glued to the second base layer 2, and the second air cavity 33 is formed between the back side of the second convex portion and the first base layer. The support member itself includes a first structural layer 313 close to the first base layer 1 and a second structural layer 314 close to the second base layer 2. The first structural layer 313 and the second structural layer 314 are connected by a support block 316. The support block is distributed in a dotted manner between the first structural layer and the second structural layer and separates the first structural layer from the second structural layer, thereby forming an interlayer air cavity 315 between the first structural layer and the second structural layer.

[0027] As a preferred embodiment, the first base layer 1 and the second base layer 2 are formed by blending polyester fiber and cotton fiber. The polyester fiber has high structural strength and is not easy to deform, so as to maintain the hollow structure of the air layer. The cotton fiber has good water absorption and air permeability, so as to improve the comfort during use.

[0028] As a preferred embodiment, the first base layer and the second base layer are formed by weaving polyester fibers with good resilience to ensure that the support member has sufficient supporting capacity to form the first air cavity and the second air cavity;

[0029] As a preferred embodiment, the skin-friendly layer is weft-knitted with skin-friendly yarn into an alternating rib structure and a tuck structure, and the skin-friendly yarn is composed of elastic fibers and skin-friendly fibers wrapped around the elastic fibers; the skin-friendly fibers are natural fibers such as wool fibers and cotton fibers, or synthetic fibers with good skin affinity such as Viscose fibers and Lyocell fibers;

[0030] As a preferred embodiment, the wear-resistant layer is weft-knitted with wear-resistant yarn into an alternating rib structure and a tuck structure, and the wear-resistant yarn is composed of elastic fiber and wear-resistant fiber wrapped around the elastic fiber;

[0031] The utility model forms a first air cavity and a second air cavity in the air layer by arranging a support member with a wavy structure. The first air cavity is close to one side of human skin when in use, and the second air cavity is close to the outside when in use. Since the air in the first / second air cavity is relatively stagnant, the heat transfer rate between the first base layer and the second base layer is relatively small. Moreover, when the fabric is squeezed and the volume of the first / second air cavity is reduced, due to the buffering effect of the interlayer air cavity in the support member, the gas exchange rate between the first air cavity and the second air cavity will be at a relatively small level, thereby reducing the interactive flow of cold and hot air in the first air cavity and the second air cavity, thereby ensuring the warmth retention performance of the fabric.

[0032] In some other embodiments, the first structural layer 313 and the second structural layer 314 may also be connected by dispersed stitches, and in this case, an interlayer air cavity is formed inside the area between two adjacent stitches; in order to further improve the cushioning performance of the sandwich air cavity, a fluff layer may be provided on the inner side of the first structural layer and the second structural layer, and the fluff layer may form a stagnant air layer by its own loose structure, thereby improving the cushioning capacity of the interlayer air cavity.

[0033] In some other embodiments, a stain-resistant coating may be provided on the outside of the wear-resistant layer. The stain-resistant coating is usually formed by a hydrophobic finishing liquid to prevent external moisture from penetrating into the interior of the fabric and reduce stain adhesion.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A warm air layer fabric, characterized in that: It includes a first base layer, an air layer and a second base layer connected in sequence, the air layer includes a support member with a wavy cross-section, the support member includes a first convex portion protruding toward the first base layer and a second convex portion protruding toward the second base layer, the first convex portion is glued to the first base layer, a first air cavity is formed between the back side of the first convex portion and the second base layer, the second convex portion is glued to the second base layer, a second air cavity is formed between the back side of the second convex portion and the first base layer; the support member includes a first structural layer and a second structural layer, at least a portion of the area between the first structural layer and the second structural layer is not connected to each other to form a sandwich air cavity.

2. The warm air layer fabric according to claim 1, characterized in that: The first structural layer and the second structural layer are connected via point-distributed support blocks.

3. The warm air layer fabric according to claim 2, characterized in that: The distribution density of the support blocks is 4 to 8 per cm 2 .

4. The warm air layer fabric according to claim 1, characterized in that: The inner sides of the first structural layer and the second structural layer are both provided with a fluff layer, and the first structural layer and the second structural layer are connected by dispersed suture lines.

5. The warm air layer fabric according to claim 1, characterized in that: The outer side of the first base layer is connected to a skin-friendly layer, and the outer side of the second base layer is connected to a wear-resistant layer.

6. The warm air layer fabric according to claim 5, characterized in that: The outer side of the wear-resistant layer is connected with a stain-resistant coating.

7. The warm air layer fabric according to claim 1, characterized in that: The weaving density of the first structural layer is greater than that of the first base layer, and the weaving density of the second structural layer is greater than that of the second base layer.

8. The warm air layer fabric according to claim 5, characterized in that: The skin-friendly layer is weft-knitted with skin-friendly yarns into rib structures and tuck structures at alternating intervals, and the wear-resistant layer is weft-knitted with wear-resistant yarns into rib structures and tuck structures at alternating intervals.

9. The warm air layer fabric according to claim 8, characterized in that: The skin-friendly yarn consists of elastic fibers and skin-friendly fibers wound around the elastic fibers.

10. The warm air layer fabric according to claim 8, characterized in that: The wear-resistant yarn consists of elastic fibers and wear-resistant fibers wound around the elastic fibers.

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