A five-layer structure of multi-warmth fabric

Abstract

The utility model relates to the technical field of face fabric, specifically disclose a multiple warm-keeping face fabric of five layer structure. Include: the intermediate layer is formed by the all knitting of first yarn, second yarn and third yarn, form a loop, the adjacent two surface layers are pushed out and have surface layer loop between loops, and the surface layer loop protrudes one side of the intermediate layer and forms surface loop layer, the part of surface layer loop is disconnected and combs long and forms surface wool layer, the adjacent two bottom layers are pushed out and have bottom layer loop between loops, and the bottom layer loop protrudes the other side of the intermediate layer and forms bottom loop layer, the part of bottom layer loop is disconnected and combs long and forms bottom wool layer, first yarn is light-absorbing heating yarn, second yarn is elastic yarn, and third yarn is infrared heat releasing yarn. The face fabric of the utility model improves significantly on thickness, bulkiness and multilayer warm-keeping channel, can realize the synergistic effect of "light-absorbing heating + elastic temperature locking + far infrared heat releasing", and satisfies the warm-keeping demand of multiple scenes such as extremely cold, outdoor and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of fabrics, and specifically discloses a five-layer multi-layer thermal insulation fabric. Background Technology

[0002] As people's demands for health, comfort, and versatile clothing continue to rise, thermal insulation fabrics are no longer limited to traditional cotton, down, or fleece materials. Currently available thermal insulation products can be broadly categorized into three types: first, heavy fabrics that achieve insulation simply by increasing thickness or weight; second, coated or laminated fabrics that utilize functional additives such as far-infrared ceramic powder, heat-storing phase change materials, or metal plating to provide a single insulation function; and third, lightweight thermal insulation materials that use hollow fibers, microfibers, and other physical structures to increase the stagnant air content.

[0003] For example, patent 202223469353.5 discloses a far-infrared thermal fabric, the outer layer of which is made of polyester low-elasticity yarn with a knitted plain weave; the middle layer, which serves as a connecting layer between the inner and outer layers, is made of high-F-number polyester low-elasticity yarn; and the inner layer is made of far-infrared hollow fiber. Although this fabric using functional fibers can have a certain degree of thermal insulation, the thermal insulation effect achieved by this fabric using a high-density knitted plain weave is limited, and it is also relatively thin and its loft is not ideal, making it difficult to meet the thermal insulation needs in extremely cold environments. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a five-layer multi-layer thermal insulation fabric.

[0005] This utility model discloses a five-layer multi-layer thermal insulation fabric, which adopts the following technical solution:

[0006] A five-layer multi-insulating fabric, woven from a first yarn, a second yarn, and a third yarn, comprises five layers:

[0007] Intermediate layer: The intermediate layer is formed by weaving the first yarn, the second yarn and the third yarn together into loops. The first yarn forms the outer loop, the second yarn forms the middle loop, and the third yarn forms the bottom loop.

[0008] Outer loop layer: There is an outer loop protruding between two adjacent outer loops, and the outer loop protrudes to one side of the middle layer to form an outer loop layer;

[0009] Surface pile layer: Part of the surface pile is broken and combed to form surface pile, and the surface pile on the surface pile layer forms the surface pile layer;

[0010] Bottom loop layer: A bottom loop protrudes between two adjacent bottom loops, and the bottom loop protrudes to the other side of the middle layer to form a bottom loop layer;

[0011] The base pile layer: the bottom loops are partially broken and combed to form base pile, and the base pile on the bottom loop layer forms the base pile layer;

[0012] The first yarn is a light-absorbing and heat-generating yarn, the second yarn is an elastic yarn, and the third yarn is an infrared heat-generating yarn.

[0013] Preferably, the first yarn is 150D / 144F light-absorbing and heat-generating polyester semi-dull lightweight mesh DTY yarn.

[0014] Preferably, the second yarn is 75D / 36F polyester semi-dull lightweight mesh DTY yarn + 30D transparent spandex yarn.

[0015] Preferably, the third yarn is a 150D / 144F 4C cross-section polyester semi-dull lightweight mesh high-elastic DTY yarn.

[0016] Preferably, along the thickness direction, the thickness ratio of the outer pile layer: outer loop layer: middle layer: bottom loop layer: bottom pile layer is (0.6~0.7):(1.00~1.05):(0.80~0.85):(1.10~1.15):(0.9~1.0).

[0017] Preferably, the coil density of the intermediate layer is WPI: 25 (±1) and CPI: 30 (±1).

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] This invention employs a five-layer fabric structure consisting of an outer loop layer, an outer terry loop layer, a middle layer, a bottom terry loop layer, and a bottom loop layer. The second yarn uses an elastic yarn to connect the first and third yarns, providing elasticity while preventing fabric deformation. The outer and bottom terry loop layers are further reinforced with outer and bottom loop layers, respectively. Light-absorbing and heat-generating yarns are used for the outer loop and top loop layers, while infrared-emitting yarns are used for the bottom and top loop layers and bottom loop layers. This significantly improves the fabric's thickness, loft, and multi-layered warmth retention, while achieving a synergistic effect of "light-absorbing heat generation + elastic heat retention + far-infrared heat release," meeting the warmth requirements of extreme cold and outdoor environments. Attached Figure Description

[0020] Figure 1 This is a cross-sectional schematic diagram of the five-layer multi-layer thermal insulation fabric in this embodiment;

[0021] Figure 2This is a triangular diagram of the five-layer structure of the multi-layer thermal insulation fabric in this embodiment.

[0022] Explanation of icon numbers:

[0023] 1. Outer pile layer; 11. Outer pile; 2. Outer loop layer; 21. Outer loop layer; 3. Middle layer; 4. Inner loop layer; 41. Inner loop layer; 5. Inner pile layer; 51. Inner pile;

[0024] a) 150D / 144F light-absorbing and heat-generating polyester semi-dull lightweight mesh DTY yarn; b) 75D / 36F polyester semi-dull lightweight mesh DTY yarn; c) 30D transparent spandex yarn; d) 150D / 144F 4C cross-section polyester semi-dull lightweight mesh high-elastic DTY yarn. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] This embodiment discloses a five-layer multi-layer thermal insulation fabric, referring to... Figure 1-2 It is woven from a first yarn, a second yarn, and a third yarn, and has a five-layer structure consisting of an outer pile layer 1, an outer loop layer 2, a middle layer 3, a bottom loop layer 4, and a bottom pile layer 5. Among them, the first yarn is a light-absorbing and heat-generating yarn, the second yarn is an elastic yarn, and the third yarn is an infrared heat-generating yarn. The middle layer 3 is formed by weaving the first yarn, the second yarn, and the third yarn together into loops. The first yarn loops form the surface loops, the second yarn loops form the middle loops, and the third yarn loops form the bottom loops. A surface loop 21 protrudes between two adjacent surface loops, and the surface loop 21 protrudes from one side of the middle layer 3 to form the surface loop layer 2. Part of the surface loop 21 is broken and combed to form surface pile 11, and the surface pile 11 on the surface loop layer 2 forms the surface pile layer 1. A bottom loop 41 protrudes between two adjacent bottom loops, and the bottom loop 41 protrudes from the other side of the middle layer 3 to form the bottom loop layer 4. Part of the bottom loop 41 is broken and combed to form bottom pile 51, and the bottom pile 51 on the bottom loop layer 4 forms the bottom pile layer 5.

[0027] By designing a five-layer fabric structure, the first yarn uses light-absorbing and heat-generating yarns to form the outer loop layer 2 and the outer pile layer 1. The outer pile layer 1 is fluffy and has a large surface area, directly capturing ambient visible light and infrared radiation, amplifying the heating effect of the light-absorbing and heat-generating yarns, and simultaneously forming the outermost static air barrier to reduce convective heat loss. The unbroken loops in the outer loop layer 2 serve as "pile anchors," maintaining the pile height and density and preventing it from collapsing after long-term use. Its hollow structure stores air, working in conjunction with the outer pile layer to increase the insulation thickness. The second yarn in the middle layer 3 uses elastic yarn in a plain weave, which not only firmly connects the light-absorbing and heat-generating yarns with the infrared heat-generating yarns but also provides 360° resilience, providing fabric elasticity while preventing loosening after stretching. Its pores form continuous air channels, evenly guiding the heat from the upper layer to the lower layer and reflecting it back to the body surface by the far-infrared layer. The third yarn uses infrared heat-dissipating yarn to form a base loop layer 4 and a base pile layer 5. The base loop layer 4 is symmetrical with the outer loop layer 2. The ring-shaped loops provide a foundation for the base pile, ensuring that it can be worn on both sides. The cavity stores air, creating a reflection-scattering space for the far-infrared yarn and enhancing the heat reflection efficiency from bottom to top. After the base pile layer 5 is gathered, the far-infrared base piles stand upright close to the skin, quickly absorbing the human body's radiated heat and reflecting it back to the body surface. At the same time, a large amount of still air between the base piles 51 reduces heat conduction and heat dissipation, realizing a "self-heating-heat locking" closed loop.

[0028] As a preferred option, the first yarn of the outer layer uses 150D / 144F light-absorbing and heat-generating semi-dull lightweight mesh polyester DTY yarn a. Its moderate fineness and high filament count allow it to quickly absorb visible and infrared light and convert it into heat energy. The semi-dull treatment reduces glare, and the lightweight mesh nodes enhance weaving stability, ensuring continuous heat release and a soft feel to the surface. Specifically, the outer layer yarn uses polyester as the base material, with carbon nanotubes incorporated into the masterbatch. This nanomaterial absorbs visible and infrared / ultraviolet light from the natural environment, then releases heat through refraction within the clothing, achieving a warming and insulating effect.

[0029] As a preferred option, the second yarn in the middle layer is a composite of 75D / 36F polyester semi-dull lightweight mesh DTY yarn b and 30D transparent spandex yarn c. It utilizes the strength of the polyester filament and the positioning of the lightweight mesh nodes, while taking advantage of the high resilience of spandex to provide good elasticity and recovery for the overall fabric, preventing deformation after washing or stretching, and improving the comfort and freedom of movement.

[0030] As a preferred option, the third yarn at the bottom layer uses 150D / 144F 4C cross-section polyester semi-dull lightweight mesh high-elastic DTY yarn. The 4C grooved irregular cross-section significantly increases the surface area, which has the effects of capillary moisture conduction, increased bulkiness, and increased far-infrared reflection area. Volcanic rock powder can be preferably introduced into the polyester yarn during the preparation of masterbatch to further enhance the far-infrared heat release and heating effect. The high-elastic DTY crimp structure brings additional bulkiness, which works in synergy with the infrared heat release function to achieve a continuous heating and heat-locking effect from the bottom up.

[0031] As a preferred design, the thicknesses of the five layers along the thickness direction are as follows: outer pile layer 1 is 0.60–0.70 mm, outer pile layer 2 is 1.00–1.05 mm, middle layer 3 is 0.80–0.85 mm, bottom pile layer 4 is 1.10–1.15 mm, and bottom pile layer 5 is 0.90–1.00 mm. The coordinated structure of each layer achieves a balance between lightweight, fluffy, and highly efficient warmth, while maintaining overall thickness and air retention. The relatively longer pile in the bottom pile layer and the bottom pile layer increases the "cavity" between the far-infrared yarn and the skin, allowing infrared radiation to escape only after multiple reflections between the pile fibers. This repeated heat transfer results in faster temperature rise and longer heat retention against the skin.

[0032] As a preferred embodiment, the coil density of the intermediate layer 3 is set to: WPI 25 (±1) and CPI 30 (±1) rows / inch, where WPI is the number of rows of coils per inch and CPI is the number of rows of coils per inch. This density is achieved by adjusting the equipment parameters and utilizing the elasticity of the second yarn containing spandex. The density of 25 rows / inch ensures that the intermediate layer has sufficient porosity to form continuous air insulation channels, while avoiding excessive density that would reduce air permeability; the density of 30 rows / inch ensures that the elastic yarn has good resilience in the longitudinal direction, allowing the fabric to return to its original shape after repeated stretching, thereby working in conjunction with the top and bottom fleece layers to achieve efficient heat retention and durable elasticity.

[0033] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A five-layer multi-insulating fabric, characterized in that, A five-layer structure woven from a first yarn, a second yarn, and a third yarn, wherein the five-layer structure includes: Intermediate layer: The intermediate layer is formed by weaving the first yarn, the second yarn and the third yarn together into loops. The first yarn forms the outer loop, the second yarn forms the middle loop, and the third yarn forms the bottom loop. Outer loop layer: There is an outer loop protruding between two adjacent outer loops, and the outer loop protrudes to one side of the middle layer to form an outer loop layer; Surface pile layer: Part of the surface pile is broken and combed to form surface pile, and the surface pile on the surface pile layer forms the surface pile layer; Bottom loop layer: A bottom loop protrudes between two adjacent bottom loops, and the bottom loop protrudes to the other side of the middle layer to form a bottom loop layer; The base pile layer: the bottom loops are partially broken and combed to form base pile, and the base pile on the bottom loop layer forms the base pile layer; The first yarn is a light-absorbing and heat-generating yarn, the second yarn is an elastic yarn, and the third yarn is an infrared heat-generating yarn.

2. The five-layer multi-insulating fabric according to claim 1, characterized in that, The first yarn is 150D / 144F light-absorbing and heat-generating semi-dull lightweight polyester DTY yarn.

3. The five-layer multi-insulating fabric according to claim 1, characterized in that, The second yarn is 75D / 36F polyester semi-dull lightweight mesh DTY yarn + 30D transparent spandex yarn.

4. The five-layer multi-insulating fabric according to claim 1, characterized in that, The third yarn is a 150D / 144F 4C cross-section polyester semi-dull lightweight mesh high-elastic DTY yarn.

5. The five-layer multi-insulating fabric according to claim 1, characterized in that, Along the thickness direction, the thickness ratio of the outer pile layer: outer loop layer: middle layer: bottom loop layer: bottom pile layer is (0.6~0.7): (1.00~1.05): (0.80~0.85): (1.10~1.15): (0.9~1.0).

6. The five-layer multi-insulating fabric according to claim 1, characterized in that, The coil density of the intermediate layer is WPI: 25 (±1) and CPI: 30 (±1).

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