Warm yarns and fabrics

Abstract

This utility model discloses a thermal insulation yarn and fabric, relating to the textile field. The key technical features are: it includes an inner core and a surface layer. The inner core is divided into alternating air sections and solid sections. Each air section contains several air cavities, with the air cavities in adjacent air sections being independent of each other. The air sections of this utility model form a low-velocity air layer through the air cavities, thereby reducing heat exchange. The solid sections separate the air cavities in adjacent air sections, further reducing airflow. Thermal insulation is achieved through the air layer. The yarn has a low weight, resulting in a fabric that is both lightweight and warm. The first fiber is made of cotton fiber, which is inherently warm, further enhancing the thermal insulation effect.

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] Clothing can be formed by further processing of fabrics, and fabrics are woven from yarns. Therefore, the properties of yarns will affect the properties of fabrics, and the properties of fabrics will affect the properties of clothing.

[0003] Existing fabrics minimize heat exchange between the inside and outside by stacking thickness and increasing weaving density. However, this increases the weight of the fabric per unit area, resulting in overly bulky garments. Therefore, a lightweight textile product with good insulation is needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a thermal insulation yarn and fabric.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a thermal insulation yarn, comprising an inner core and a surface layer, wherein the inner core is divided into air sections and solid sections arranged alternately, and the air sections are provided with a plurality of air cavities, wherein the air cavities in adjacent air sections are independent of each other.

[0006] The present invention is further configured such that: the inner core is formed by twisting several strands of first fiber filaments, wherein the twist of the first fiber filaments in the air section is less than the twist of the first fiber filaments in the solid section.

[0007] The present invention is further configured such that: the surface layer is composed of several strands of second fiber filaments, the twist direction of the second fiber filaments being opposite to the twist direction of the first fiber filaments.

[0008] The present invention is further configured such that the surface of the second fiber filament has a ridge.

[0009] The present invention is further configured such that the twist of the second fiber filament is less than the twist of the first fiber filament in the air section.

[0010] A fabric comprising a base layer woven from the aforementioned insulating yarn, with a top layer sewn to one side of the base layer, the insulating yarn forming loops between the base layer and the top layer.

[0011] The present invention is further configured such that the base layer is weft-knitted into a single-sided terry loop structure.

[0012] In summary, this utility model has the following beneficial effects: the air section forms an air layer with a low flow velocity through the air cavity, thereby reducing heat exchange; the solid section separates the air cavities in adjacent air sections, further reducing air flow; warmth is achieved through the air layer; the yarn has a low weight, so the fabric woven from the yarn has both lightweight and warm effects; the first fiber is made of cotton fiber, which is inherently warm, further improving the warmth retention effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the inner core of the thermal insulation yarn in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the thermal insulation yarn in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the base layer in this utility model;

[0016] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0017] In the diagram: 1. Air section; 2. Solid section; 3. First fiber filament; 4. Second fiber filament; 5. Thermal insulation yarn; 6. Base layer; 7. Top layer. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1: A type of thermal insulation yarn, such as Figure 1 , Figure 2 As shown, it includes an inner core and a surface layer. The inner core is divided into air sections 1 and solid sections 2 that are arranged alternately. The air sections 1 are provided with several air cavities, and the air cavities in adjacent air sections 1 are independent of each other.

[0020] Specifically, the air section 1 forms an air layer with a low flow velocity through air cavities to reduce heat exchange, while the solid section 2 separates the air cavities in adjacent air sections 1, further reducing air flow. At the same time, the length of the air section 1 is greater than the length of the solid section 2, ensuring the total volume of the air cavities and thus ensuring the warmth of the yarn. Because the warmth is achieved through air layers, the weight of the yarn is relatively small, making the fabric woven from the yarn both lightweight and warm.

[0021] like Figure 1 , Figure 2As shown, the inner core is made of several strands of first fiber filament 3 twisted together. The twist of the first fiber filament 3 in the air section 1 is less than the twist of the first fiber filament 3 in the solid section 2. The surface layer is composed of several strands of second fiber filament 4. The twist direction of the second fiber filament 4 is opposite to that of the first fiber filament 3. The surface of the second fiber filament 4 is provided with edge. The twist of the second fiber filament 4 is less than the twist of the first fiber filament 3 in the air section 1.

[0022] Specifically, the first fiber filament 3 is made of cotton fiber, which is relatively warm. The first fiber filament 3 forms an air part 1 and a solid part 2 through changes in twist. The second fiber filament 4 covers the outside of the inner core, ensuring the structural stability of the inner core. The second fiber filament 4 is made of irregularly shaped polyester fiber with a triangular cross-section, which forms an edge on the surface of the second fiber filament 4. The opposite twist directions of the first fiber filament 3 and the second fiber filament 4, as well as the edge on the surface of the second fiber filament 4, increase the friction between the first fiber filament 3 and the second fiber filament 4, further ensuring the structural stability of the inner core.

[0023] Example 2: A fabric, such as Figure 3 , Figure 4 As shown, it includes a base layer 6 woven from the aforementioned thermal insulation yarn 5, with a surface layer 7 sewn to one side of the base layer 6. The thermal insulation yarn 5 forms loops between the base layer 6 and the surface layer 7, and the base layer 6 is weft-knitted into a single-sided loop structure.

[0024] Specifically, the base layer 6 is made of single-sided terry cloth weft knitted from the thermal yarn 5, and the outer layer 7 is made of double rib knitted from the cotton yarn. The terry cloth plays a supporting role between the outer layer 7 and the base layer 6, forming a cavity between the outer layer 7 and the base layer 6. The terry cloth slows down the air flow rate in the cavity, and together with the thermal insulation effect of the thermal yarn 5 itself, it ensures the warmth of the fabric.

[0025] 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 yarn characterized by: It includes an inner core and a surface layer. The inner core is divided into an air section (1) and a solid section (2) that are alternately spaced. The air section (1) is provided with a plurality of air cavities, and the air cavities in adjacent air sections (1) are independent of each other.

2. The thermal yarn of claim 1, wherein: The inner core is formed by twisting several strands of first fiber filaments (3), and the twist of the first fiber filaments (3) in the air part (1) is less than the twist of the first fiber filaments (3) in the solid part (2).

3. The thermal yarn of claim 2, wherein: The surface layer is composed of several strands of second fiber filaments (4), the twist direction of which is opposite to that of the first fiber filaments (3).

4. The thermal yarn of claim 3, wherein: The surface of the second fiber filament (4) is provided with edges.

5. The thermal yarn of claim 3, wherein: The twist of the second fiber filament (4) is less than the twist of the first fiber filament (3) in the air section (1).

6. A fabric, characterized by: It includes a base layer (6) woven from the insulating yarn (5) as described in any one of claims 1-5, with a top layer (7) sewn to one side of the base layer (6), and the insulating yarn (5) forming loops between the base layer (6) and the top layer (7).

7. The facing material of claim 6, wherein: The base layer (6) is weft-knitted into a single-sided terry cloth structure.

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