Far infrared thermal cotton and thermal clothing
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YISHION GRP CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-26
AI Technical Summary
Existing thermal clothing is bulky in cold environments, affecting wearing comfort, and the down filling is prone to clumping and uneven distribution, making it impossible to achieve a balance between lightweight and long-lasting warmth.
It adopts a three-layer composite structure design, including an upper dense layer, a heat storage layer and a lower dense layer, which are made of volcanic rock fiber and ordinary polyester fiber. Combined with a heat-melting setting process, it forms a far-infrared heat-insulating layer. Combined with a lightweight high-density woven fabric and a soft and breathable bottom fabric, it achieves a lightweight design.
It significantly improves warmth retention and durability, solves the problems of clumping and uneven distribution of traditional insulation materials after washing, and achieves lightweight, washable and long-lasting warmth retention to meet the needs of frequent daily wear.
Smart Images

Figure CN224408652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile and clothing technology, specifically to a far-infrared thermal insulation cotton and thermal clothing. Background Technology
[0002] In low-temperature environments, thermal clothing is essential for keeping warm in daily life. Current thermal clothing generally uses materials such as cotton or down filling the inside, or adds fleece to the lining to enhance warmth.
[0003] Existing thermal insulation materials and clothing still have the following shortcomings:
[0004] 1. In cold environments, keeping the human body warm is especially important, but in modern society, people often pursue aesthetics as well. They improve warmth by adding thicker, fleece-lined clothing. However, this structure results in bulky, heavy clothing that not only restricts movement but also severely impacts comfort.
[0005] 2. Currently, down-filled garments are prone to clumping and uneven distribution of down after washing, which seriously affects their warmth retention.
[0006] 3. In everyday wear scenarios that require frequent washing, it is impossible to achieve a balance between lightweight, washability, and long-lasting warmth.
[0007] Therefore, there is an urgent need for far-infrared insulating cotton and warm clothing. Utility Model Content
[0008] The purpose of this invention is to address the shortcomings and defects of existing technologies by providing a far-infrared thermal insulation cotton and thermal clothing. This far-infrared thermal insulation cotton, through a three-layer composite structure design and a blending process of volcanic rock fiber and ordinary polyester fiber, significantly improves its thermal insulation performance and durability. Volcanic rock fiber can promote blood circulation in the human body to achieve active warmth, while the heat storage layer can fix air to form a heat insulation barrier. At the same time, the heat-melting shaping process gives the material excellent structural stability, solving the pain points of clumping and uneven distribution after washing of traditional thermal insulation materials. It remains fluffy even after multiple machine washes. The thermal clothing adopts a lightweight design and a soft and breathable bottom layer, ensuring efficient warmth while completely eliminating the bulky feeling. It achieves a three-in-one combination of lightweight, washable and long-lasting warmth, meeting the needs of frequent daily wear.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: a far-infrared thermal insulation cotton and thermal clothing, comprising a far-infrared thermal insulation layer. The far-infrared thermal insulation layer is a three-layer composite structure formed by mixing volcanic rock fiber and ordinary polyester fiber and heat-melting and shaping. The three-layer composite structure consists of an upper dense layer, a heat storage layer, and a lower dense layer. The upper and lower dense layers are dense layers formed by melting and bonding volcanic rock fiber and ordinary polyester fiber. The heat storage layer maintains a fluffy structure, emits far-infrared rays, fixes a large amount of air, and effectively blocks heat loss. The three-layer composite structure formed by the upper dense layer, the heat storage layer, and the lower dense layer can prevent clumping and accumulation problems during subsequent use and after multiple washes.
[0010] Furthermore, the volcanic rock fiber is prepared by fusing volcanic rock nanoparticles, polymers, and bio-extracted components.
[0011] Furthermore, the volcanic rock fiber used has a length of 30mm to 60mm and a fineness of 2dtex to 4dtex, while the ordinary polyester fiber has a length of 40mm to 80mm and a fineness of 3dtex to 5dtex.
[0012] Furthermore, the weight ratio of the volcanic rock fiber to ordinary polyester fiber is 30:70 to 50:50.
[0013] A thermal garment comprising any far-infrared insulating cotton, further comprising an outer fabric and an inner fabric, wherein the far-infrared insulating layer is disposed between the outer fabric and the inner fabric.
[0014] Furthermore, the surface fabric is made of lightweight, high-density woven fabric, including high-density nylon fabric and high-density polyester fabric, with a density of 190T~400T and a weight of 50~120g / m². 2 .
[0015] Furthermore, the bottom layer fabric is made of a soft, comfortable, and breathable lightweight woven fabric, including ultra-soft nylon fabric and plain polyester fabric, with a weight of 30~100g / m². 2 .
[0016] The beneficial effects of this utility model after adopting the above technical solution are as follows: This far-infrared thermal insulation cotton, through a three-layer composite structure design, combined with the blending process of volcanic rock fiber and ordinary polyester fiber, significantly improves the thermal insulation performance and durability. Volcanic rock fiber can promote human blood circulation to achieve active warmth, while the heat storage layer can fix air to form a heat insulation barrier. At the same time, the heat-melting shaping process gives the material excellent structural stability, solving the pain points of clumping and uneven distribution after washing of traditional thermal insulation materials. It remains fluffy even after multiple machine washes. The thermal clothing adopts a lightweight design and a soft and breathable bottom layer, which completely eliminates the bulky feeling while ensuring efficient warmth. It achieves a three-in-one of lightweight, washable and long-lasting warmth, meeting the needs of frequent daily wear. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Explanation of reference numerals in the attached diagram: 1. Top layer fabric; 2. Far-infrared insulation layer; 3. Bottom layer fabric; 21. Upper dense layer; 22. Heat storage layer; 23. Lower dense layer. Detailed Implementation
[0020] See Figure 1 As shown, the technical solution adopted in this specific embodiment is as follows: it includes a far-infrared heat-insulating layer 2, which is a three-layer composite structure made of volcanic rock fiber and ordinary polyester fiber and formed by heat melting and shaping. The three-layer composite structure consists of an upper dense layer 21, a heat-storing layer 22, and a lower dense layer 23. The three-layer composite structure formed by the upper dense layer 21, the heat-storing layer 22, and the lower dense layer 23 can prevent clumping and accumulation problems during subsequent use and after multiple washes.
[0021] Upper compact layer 21 and lower compact layer 23: compact layers formed by fusion bonding of volcanic rock fibers and ordinary polyester fibers;
[0022] Heat storage layer 22: Maintains a fluffy structure, emits far-infrared rays, fixes a large amount of air, and effectively blocks heat loss.
[0023] More specifically, the volcanic rock fiber is prepared by fusing volcanic rock nanopowder, polymer, and bio-extracted components. Its rich mineral content can absorb heat from the human body and the environment and emit far-infrared rays, promoting microcirculation in subcutaneous tissue and producing a comfortable warm feeling. At the same time, its nanoporous structure can not only form an effective heat-insulating layer, but also increase the specific surface area of the fiber, creating natural air-permeable channels and providing the possibility of breathability.
[0024] More specifically, the volcanic rock fiber used has a length of 30mm~60mm and a fineness of 2dtex~4dtex, while the ordinary polyester fiber has a length of 40mm~80mm and a fineness of 3dtex~5dtex.
[0025] More specifically, the weight ratio of the volcanic rock fiber to the ordinary polyester fiber is 30:70 to 50:50.
[0026] The preparation steps of this utility model are as follows: volcanic rock fiber and ordinary polyester fiber are mixed, opened, and combed in a certain proportion to form a fiber web with a basis weight of 90~150g / m². 2 The fiber web is then heat-set using a hot air penetration oven. The fibers on the upper and lower surfaces of the web come into contact with higher temperatures, causing them to melt and intertwine to form an upper dense layer 21 and a lower dense layer 23. The middle layer, exposed to lower temperatures, maintains a fluffy structure and serves as a heat storage layer 22. The volcanic rock fibers in the heat storage layer 22 absorb heat from the human body and the environment and emit far-infrared rays, promoting microcirculation in subcutaneous tissue, generating a comfortable warm sensation, promoting blood circulation, and feeding back absorbed heat energy in the form of radiation. Simultaneously, the fluffy structure of the heat storage layer 22 can retain a large amount of air, effectively preventing heat loss. The three-layer composite structure formed by the upper dense layer 21, the heat storage layer 22, and the lower dense layer 23 prevents clumping and accumulation during subsequent use and multiple washes, while also exhibiting excellent washability.
[0027] See Figure 1 As shown, a thermal garment is characterized in that it includes any kind of far-infrared thermal cotton, and it also includes an outer fabric 1 and an inner fabric 3, wherein the far-infrared thermal layer 2 is disposed between the outer fabric 1 and the inner fabric 3.
[0028] More specifically, the outer fabric 1 is made of a lightweight, high-density woven fabric, including high-density nylon fabric and high-density polyester fabric, with a density of 190T~400T and a weight of 50~120g / m². 2 The outer fabric 1 effectively blocks cold air from penetrating while locking in the internal heating.
[0029] More specifically, the bottom layer fabric 3 is made of a soft, comfortable, and breathable lightweight woven fabric, including ultra-soft nylon fabric and plain-weave polyester fabric, with a weight of 30~100g / m². 2 The bottom layer fabric 3 makes the thermal garment comfortable to wear, and gives it lightweight, washable, and long-lasting warmth.
[0030] The following are the relevant experiments and data of this utility model.
[0031] The far-infrared insulating layer is made of a blend of volcanic rock fiber and ordinary polyester fiber. It uses 3D volcanic rock fiber (51mm length) and 4D polyester fiber (64mm length), with a ratio of 40:60. The volcanic rock fiber and ordinary polyester fiber are mixed, opened, and carded to form a fiber web with a basis weight of 120g / m². 2 The fiber web is heat-set by using a hot air penetration oven. The upper and lower fiber webs are set with hot air at 150℃ and a wind speed of 2.5m / s, which melts and bonds the fibers on the upper and lower surfaces to form a tight upper and tight lower layer. The middle fiber web is set at 110℃ to maintain its fluffy structure, thus forming a heat storage layer.
[0032] The thermal clothing comprises an outer fabric, a far-infrared insulating layer, and a bottom fabric, with the far-infrared insulating layer positioned between the outer and bottom fabrics. The outer fabric is made of high-density nylon with a density of 230T and a fabric weight of 74g / m². 2 It effectively blocks cold air from penetrating while locking in internal heating, and is also water-resistant. The bottom layer is made of soft twill polyester fabric with a weight of 58g / m². 2 It is breathable and soft to the touch. The garment is lightweight, warm, comfortable to wear, easy to care for, machine washable, and remains fluffy and warm after washing.
[0033] The far-infrared performance of the thermal insulation cotton was tested according to GB / T30127-2013 "Test and Evaluation of Far-Infrared Properties of Textiles", and the heat retention rate of the thermal insulation cotton was tested according to GB / T35762-2017 "Test Method for Heat Transfer Properties of Textiles - Plate Method".
[0034] Far-infrared emissivity % Far-infrared radiation temperature rise ℃ Thermal insulation rate % thermal cotton 0.84 3.6 76.9
[0035] Test results show that the thermal insulation cotton has good warmth retention performance, and when combined with the outer fabric, it can achieve good warmth retention even when the clothing is thin.
[0036] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A far-infrared heat-insulating cotton, characterized in that: It includes a far-infrared heat-insulating layer (2), which is a three-layer composite structure made of volcanic rock fiber and ordinary polyester fiber and formed by heat melting and shaping. The three-layer composite structure consists of an upper tight layer (21), a heat-storing layer (22), and a lower tight layer (23). The three-layer composite structure formed by the upper tight layer (21), the heat-storing layer (22), and the lower tight layer (23) can prevent clumping and accumulation problems during subsequent use and after multiple washes. Upper compact layer (21) and lower compact layer (23): compact layers formed by fusion bonding of volcanic rock fibers and ordinary polyester fibers; Heat storage layer (22): Maintains a fluffy structure, emits far-infrared rays, fixes a large amount of air, and effectively blocks heat loss.
2. The far-infrared thermal insulation cotton according to claim 1, characterized in that: The volcanic rock fiber used has a length of 30mm to 60mm and a fineness of 2dtex to 4dtex, while the ordinary polyester fiber has a length of 40mm to 80mm and a fineness of 3dtex to 5dtex.
3. A thermal garment, characterized in that: It includes a far-infrared thermal insulation cotton as described in any one of claims 1-2, and further includes an outer fabric (1) and an inner fabric (3), wherein the far-infrared thermal insulation layer (2) is disposed between the outer fabric (1) and the inner fabric (3).
4. The thermal clothing according to claim 3, characterized in that: The outer fabric (1) is made of lightweight, high-density woven fabric, including high-density nylon fabric and high-density polyester fabric, with a density of 190T~400T and a weight of 50~120g / m². 2 .
5. A thermal garment according to claim 3, characterized in that: The bottom layer fabric (3) is made of a soft, comfortable, and breathable lightweight woven fabric, including super-soft nylon fabric and plain polyester fabric, with a weight of 30~100g / m². 2 .