Elastic warm-keeping fabric and knitted sweater

By using a composite structure elastic thermal fabric, the problem of reduced elasticity caused by the compression of filling material in existing technologies has been solved, resulting in an elastic thermal fabric with high comfort and warmth retention, featuring a fleece layer, absorbent space, and hydrophobic properties.

CN224089826UActive Publication Date: 2026-04-07海宁市名路制衣有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing thermal insulation fabrics lose elasticity and comfort after prolonged use due to the compression of the filling.

Method used

The elastic thermal fabric with a composite structure includes a fleece layer, an elastic thermal layer, and a moisture-absorbing and heat-generating layer. It uses polyester elastic core-spun yarn, ultra-fine nylon filament, spandex filament, and three-dimensional hollow crimped fiber, combined with hydrophobic modified silica nanoparticles to form a fabric structure with a fleece layer and containment space.

Benefits of technology

It achieves good warmth retention and resilience, improves the comfort and antibacterial properties of the fabric, and has hydrophobic properties.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an elastic warm-keeping fabric and a knitted sweater. The elastic warm-keeping fabric comprises a raising fabric layer, an elastic warm-keeping layer and a moisture-absorbing and heating fabric layer which are compounded, the raising fabric layer comprises a bottom comb and a surface comb; the yarns used by the bottom comb are elastic polyester covering yarns, and the yarns used by the surface comb are superfine nylon 6 filaments; a fluff layer formed by raising is arranged on the surface of one side, far away from the elastic warm-keeping layer, of the raising fabric layer; the elastic warm-keeping layer comprises a first elastic knitted fabric layer and a second elastic knitted fabric layer which are connected through sewing threads, a containing space is formed between the two sewing threads and between the first elastic knitted fabric layer and the second elastic knitted fabric layer, and the containing space is filled with warm-keeping filler. And the warm-keeping filler is a three-dimensional hollow crimped fiber. And the used gigging fabric is provided with the fluff layer, so that the warm-keeping effect of the fabric can be improved. The three-dimensional hollow crimped fibers filled in the elastic warm-keeping fabric layer have a warm-keeping effect and also have good rebound resilience.
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Description

Technical Field

[0001] This utility model relates to an elastic thermal fabric and a knitted sweater, belonging to the field of thermal fabric technology. Background Technology

[0002] Thermal fabrics are an important component of the fabric industry. Current thermal fabrics typically achieve their insulation layer by filling the inner and outer layers with insulating materials such as cotton or down. However, over time, the cotton or other filling materials shrink and the insulation layer loses its elasticity and stiffens, making the fabric uncomfortable to wear. Therefore, developing an elastic thermal fabric and knitwear has become a problem to be solved. Utility Model Content

[0003] The purpose of this invention is to provide an elastic thermal fabric and knitwear with good warmth retention and resilience.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] The present invention relates to an elastic thermal insulation fabric, comprising a composite napped fabric layer, an elastic thermal insulation layer, and a moisture-absorbing and heat-generating fabric layer.

[0006] The napped fabric layer includes a bottom comb and a top comb; the yarn used in the bottom comb is polyester elastic core-spun yarn, and the yarn used in the top comb is ultra-fine nylon 6 filament; the surface of the napped fabric layer away from the elastic insulation layer has a pile layer formed by napping.

[0007] The elastic thermal insulation layer includes a first elastic knitted fabric layer and a second elastic knitted fabric layer connected by sewing threads. A receiving space is formed between the first elastic knitted fabric layer and the second elastic knitted fabric layer between the two sewing threads. The receiving space is filled with thermal insulation filler, which is a three-dimensional hollow crimped fiber.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the moisture-absorbing and heat-generating fabric layer is woven from elastic moisture-absorbing and heat-generating yarn, which includes spandex filaments and moisture-absorbing and heat-generating fibers covering the outside of the spandex filaments.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the polyester elastic core-spun yarn includes spandex filaments and antibacterial polyester filaments covering the outside of the spandex filaments.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: both the first elastic knitted fabric layer and the second elastic knitted fabric layer are laminated with a layer of spunbond nonwoven fabric on the side near the thermal insulation filling.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the surface of the fibers in the fiber layer is coated with surface-hydrophobic modified silica nanoparticles, and the particle size of the surface-hydrophobic modified silica nanoparticles is 200-300nm.

[0012] This utility model also relates to a knitted sweater that uses the aforementioned elastic and warm fabric.

[0013] The beneficial effects of this utility model are as follows: The elastic thermal fabric involved in this utility model has a pile layer, which can improve the warmth retention of the fabric. The three-dimensional hollow crimped fibers filled in the elastic thermal fabric layer not only have a warming effect but also good resilience. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the elastic thermal insulation fabric involved in Example 1;

[0015] Figure 2 This is a schematic diagram of the elastic thermal insulation layer involved in Example 1. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] Combination Figure 1 and Figure 2 This embodiment will be described in detail. The elastic thermal fabric involved in this embodiment includes a composite fleece fabric layer 1, an elastic thermal insulation layer 2, and a moisture-absorbing and heat-generating fabric layer 3. Specifically, it is composited using a heat-fused mesh film.

[0019] The napped fabric layer 1 includes a bottom comb and a top comb; the yarn used for the bottom comb is polyester elastic core-spun yarn, and the yarn used for the top comb is ultra-fine nylon 6 filament; the surface of the napped fabric layer 1 away from the elastic insulating layer 2 has a pile layer 4 formed by napping. The bottom comb is woven using a warp plain weave, and the top comb is woven using a warp-knitted napped weave. The ultra-fine nylon 6 filament used has a fineness of 72D / 144F. Nylon 6 filament not only has good abrasion resistance, but also improves the feel of the fabric due to the fineness of the single filament.

[0020] The elastic insulating layer 2 includes a first elastic knitted fabric layer 21 and a second elastic knitted fabric layer 22 connected by sewing threads 23. A receiving space 24 is formed between the two sewing threads 23 and the first elastic knitted fabric layer 21 and the second elastic knitted fabric layer 22. The receiving space 24 is filled with insulating filler 25, which is a three-dimensional hollow crimped fiber. In this embodiment, the elastic fabric is woven from cotton-ammonia core-spun yarn.

[0021] Furthermore, the moisture-absorbing and heat-generating fabric layer 3 is woven from elastic moisture-absorbing and heat-generating yarn, which includes spandex filaments and moisture-absorbing and heat-generating fibers covering the outside of the spandex filaments. The moisture-absorbing and heat-generating fibers are moisture-absorbing and heat-generating acrylic fibers, which can improve the warmth retention effect of the elastic thermal fabric involved in this embodiment.

[0022] Furthermore, the polyester elastic core-spun yarn includes spandex filaments and antibacterial polyester filaments covering the outside of the spandex filaments. The antibacterial polyester filaments can improve the antibacterial effect of the fabric.

[0023] Example 2

[0024] The elastic thermal insulation fabric involved in this embodiment differs from that in Embodiment 1 in that: both the first elastic knitted fabric layer 21 and the second elastic knitted fabric layer 22 have a layer of spunbond nonwoven fabric laminated on the side near the thermal insulation filling material 25. Specifically, it is a polypropylene spunbond nonwoven fabric, which can prevent the three-dimensional hollow crimped fibers from leaking down.

[0025] Furthermore, the surface of the pile in the pile layer 4 is coated with surface-modified hydrophobic silica nanoparticles, the particle size of which is 200-300 nm. This gives the elastic thermal fabric a hydrophobic effect.

[0026] Example 3

[0027] The knitted sweater involved in this embodiment is made of the elastic and warm fabric prepared in Embodiment 1 or Embodiment 2.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An elastic thermal insulation fabric, characterized in that, It includes a composite fleece fabric layer (1), an elastic thermal insulation layer (2), and a moisture-absorbing and heat-generating fabric layer (3); The napped fabric layer (1) includes a bottom comb and a top comb; the yarn used in the bottom comb is polyester elastic core-spun yarn, and the yarn used in the top comb is ultra-fine nylon 6 filament; the napped fabric layer (1) has a pile layer (4) formed by napping on the side away from the elastic thermal insulation layer (2). The elastic thermal insulation layer (2) includes a first elastic knitted fabric layer (21) and a second elastic knitted fabric layer (22) connected by sewing threads (23), and a receiving space (24) is formed between the first elastic knitted fabric layer (21) and the second elastic knitted fabric layer (22) between the two sewing threads (23). The receiving space (24) is filled with thermal insulation filling material (25), which is a three-dimensional hollow crimped fiber.

2. The elastic thermal insulation fabric according to claim 1, characterized in that, The moisture-absorbing and heat-generating fabric layer (3) is woven from elastic moisture-absorbing and heat-generating yarn, which includes spandex filaments and moisture-absorbing and heat-generating fibers covering the outside of the spandex filaments.

3. The elastic thermal insulation fabric according to claim 1, characterized in that, The polyester elastic core-spun yarn includes spandex filaments and antibacterial polyester filaments covering the outside of the spandex filaments.

4. The elastic thermal insulation fabric according to claim 1, characterized in that, Both the first elastic knitted fabric layer (21) and the second elastic knitted fabric layer (22) have a layer of spunbond nonwoven fabric laminated on the side near the thermal insulation filling material (25).

5. The elastic thermal insulation fabric according to claim 1, characterized in that, The surface of the fluff layer (4) is coated with surface-hydrophobic modified silica nanoparticles, the particle size of which is 200-300nm.

6. A knitted sweater, characterized in that, The elastic thermal fabric described in any one of claims 1 to 5 is used.