Warm-keeping yarn and fabric

Abstract

The utility model discloses a warm-keeping yarn and fabric, and relates to the field of spinning, and the key points of the technical scheme are that the warm-keeping yarn and the fabric comprise core yarn, a covering layer is arranged outside the core yarn, an outer covering yarn is wound outside the covering layer, the covering layer is made of elastic materials, the outer covering yarn is composed of high-twist parts and low-twist parts, and the high-twist parts and the low-twist parts are arranged alternately. And the diameter of the contact part of the coating layer and the low-twist part is greater than that of the contact part of the coating layer and the high-twist part. The high-twist part is tightened inwards and extrudes the outer covering layer, the outer covering layer is forced to deform, the anti-raveling performance of the yarn at the high-twist part is improved, a fluffy structure is formed by the outer covering layer at the low-twist part, the heat retention property of the yarn is guaranteed, the low-twist part and the high-twist part are mutually alternated, and the anti-raveling performance of the yarn is improved. The two sides of each section of fluffy outer covering layer are both extruded and tightened, the anti-raveling performance of the whole yarn is guaranteed, the first winding yarn and the second winding yarn are both formed by twisting hollow polyester fibers, and the hollow polyester fibers have a certain heat preservation effect and good deformation performance.

Description

Technical Field

[0001] This utility model relates to the textile field, and more specifically, to a thermal insulation yarn and fabric. Background Technology

[0002] Thermal fabrics typically use relatively loose yarns. The main purpose is to create a fluffy and complex structure on the surface or inside of the fabric, thereby forming an air layer with a certain insulating effect and reducing the loss of internal heat. However, during the use of the fabric after being woven, the fluffy structure of the yarn can easily cause the yarn or the fiber bundles that make up the yarn to come apart, affecting the lifespan of the fabric. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a thermal insulation yarn and fabric.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a warm yarn, comprising a core yarn, a covering layer provided outside the core yarn, an outer covering yarn wound around the covering layer, the covering layer being made of an elastic material, and the outer covering yarn being composed of alternating high-twist portions and low-twist portions, wherein the diameter of the portion of the covering layer in contact with the low-twist portion is larger than the diameter of the portion of the covering layer in contact with the high-twist portion.

[0005] The present invention is further configured such that: the covering layer is composed of a plurality of first winding yarns and a plurality of second winding yarns, the diameter of the first winding yarns is larger than the diameter of the second winding yarns, the first winding yarns and the second winding yarns are wound around the core yarn in the same direction, and the first winding yarns and the second winding yarns are arranged at intervals.

[0006] The present invention is further configured such that the twist direction of the outer covering yarn is opposite to that of the twist direction of the first winding yarn.

[0007] The present invention is further configured such that the length of the portion of the core yarn covered by the low-twist section is greater than the length of the portion of the core yarn covered by the high-twist section.

[0008] A fabric using the aforementioned thermal yarn includes a base layer, the base layer being woven from warp thermal yarn and weft abrasion-resistant yarn, wherein the diameter of the abrasion-resistant yarn is greater than the maximum diameter of the thermal yarn.

[0009] The present invention is further configured such that the base layer forms a satin weave.

[0010] In summary, this utility model has the following beneficial effects: the high-twist section tightens and compresses the outer covering layer inward, forcing the outer covering layer to deform, which improves the anti-unraveling performance of the yarn in the high-twist section. In the low-twist section, the outer covering layer forms a relatively loose structure, ensuring the warmth of the yarn. The alternation between the low-twist section and the high-twist section ensures that both sides of each loose outer covering layer are compressed and tightened, ensuring the overall anti-unraveling performance of the yarn. The first and second winding yarns are both made of hollow polyester fibers twisted together. Hollow polyester fibers have a certain warmth retention effect and good deformation performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the thermal insulation yarn in this utility model;

[0012] Figure 2 This is a diagram of the organizational structure of the grassroots level in this utility model.

[0013] In the diagram: 1. Core yarn; 2. High twist section; 3. Low twist section; 4. First winding yarn; 5. Second winding yarn. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] Example 1: A thermal insulation yarn and fabric, such as Figure 1 As shown, it includes a core yarn 1, a covering layer outside the core yarn 1, and an outer covering yarn wound around the covering layer. The covering layer is made of an elastic material. The outer covering yarn consists of alternating high-twist portions 2 and low-twist portions 3. The diameter of the portion of the covering layer in contact with the low-twist portion 3 is larger than the diameter of the portion of the covering layer in contact with the high-twist portion 2. The covering layer consists of several first winding yarns 4 and several second winding yarns 5. The diameter of the first winding yarns 4 is larger than the diameter of the second winding yarns 5. The first winding yarns 4 and the second winding yarns 5 are wound around the core yarn 1 in the same direction. The first winding yarns 4 and the second winding yarns 5 are arranged alternately. The twist direction of the outer covering yarn is opposite to the twist direction of the first winding yarns 4.

[0016] Specifically, the core yarn 1 is wrapped clockwise with a first winding yarn 4 and a second winding yarn 5. Both the first winding yarn 4 and the second winding yarn 5 are made of hollow polyester fibers twisted together. Hollow polyester fibers have a certain warmth retention effect and good deformation performance. The second winding fiber bundle separates the adjacent first winding fiber bundle, leaving space for the deformation of the first winding fiber bundle, which further improves the deformation ability of the covering layer. The high twist section 2 tightens inward and squeezes the outer covering layer, forcing the outer covering layer to deform, which improves the anti-unraveling performance of the yarn at the high twist section 2. At the low twist section 3, the outer covering layer forms a relatively loose structure, which ensures the warmth retention of the yarn. The low twist section 3 and the high twist section 2 alternate with each other, ensuring that both sides of each loose outer covering layer are squeezed and tightened, which ensures the overall anti-unraveling performance of the yarn. The twist direction of the outer covering yarn is opposite to the twist direction of the first winding yarn 4, which further improves the anti-unraveling performance of the yarn.

[0017] like Figure 1 As shown, the length of the core yarn 1 covered by the low-twist section 3 is greater than the length of the core yarn 1 covered by the high-twist section 2. Specifically, the length of the fluffy part of the outer covering layer is greater than the length of the tightened part of the outer covering layer, which further improves the warmth retention of the yarn.

[0018] Example 2: A fabric, such as Figure 2 As shown, the aforementioned thermal insulation yarn is used, including a base layer. The base layer is woven from warp thermal insulation yarn and weft abrasion-resistant yarn. The diameter of the abrasion-resistant yarn is larger than the maximum diameter of the thermal insulation yarn, and the base layer forms a satin weave.

[0019] Specifically, the base layer is woven from warm and abrasion-resistant yarns in a 5 / 3 weft satin weave. The abrasion-resistant yarn is made of twisted nylon fiber, which has good abrasion resistance. The abrasion-resistant yarn has a larger diameter, and the number of floating points of the abrasion-resistant yarn on the outer side of the base layer is greater than that of the warm yarn. Therefore, the abrasion-resistant yarn protects the warm yarn, improving the abrasion resistance and anti-fraying properties of the fabric.

[0020] 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 yarn, characterized in that: It includes a core yarn (1), the core yarn (1) is provided with a covering layer, the covering layer is wrapped with an outer covering yarn, the covering layer is made of an elastic material, the outer covering yarn is composed of alternating high twist portions (2) and low twist portions (3), the diameter of the part of the covering layer in contact with the low twist portion (3) is greater than the diameter of the part of the covering layer in contact with the high twist portion (2).

2. The thermal insulation yarn according to claim 1, characterized in that: The covering layer is composed of a plurality of first winding yarns (4) and a plurality of second winding yarns (5). The diameter of the first winding yarns (4) is larger than the diameter of the second winding yarns (5). The first winding yarns (4) and the second winding yarns (5) are wound in the same direction around the core yarn (1). The first winding yarns (4) and the second winding yarns (5) are spaced apart.

3. The thermal insulation yarn according to claim 2, characterized in that: The twist direction of the outer covering yarn is opposite to that of the first winding yarn (4).

4. The thermal insulation yarn according to claim 1, characterized in that: The length of the portion of the core yarn (1) covered by the low twist portion (3) is greater than the length of the core yarn (1) covered by the high twist portion (2).

5. A fabric using the thermal yarn as described in any one of claims 1-4, characterized in that: It includes a base layer, which is woven from warp-directed insulating yarn and weft-directed abrasion-resistant yarn, wherein the diameter of the abrasion-resistant yarn is larger than the maximum diameter of the insulating yarn.

6. The fabric according to claim 5, characterized in that: The base layer has a satin weave.

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