Cashmere fabric with temperature adjusting function

Abstract

A cashmere fabric with a temperature adjusting function belongs to the technical field of cashmere textile production, a bottom layer is a cashmere fiber layer, the cashmere fiber layer is coated with a PCM layer, the PCM layer is covered with a waterproof breathable layer, and the thickness of the PCM layer is smaller than or equal to 0.2 mm. The cashmere fabric adapts to rapid scientific and technological progress in the prior art, solves the problem that a traditional cashmere fiber fabric is single in function, and has the temperature adjusting function.

Description

Technical Field

[0001] This application belongs to the field of cashmere textile production technology, and specifically relates to a cashmere fabric with temperature regulation function. Background Technology

[0002] Currently, cashmere companies typically have a limited product range, generally offering only basic cashmere sweaters with variations in thickness or style. This makes it difficult for them to gain a significant market share in the apparel industry, severely limiting their market reach. The applicant has undertaken a creative design to enhance the warmth and other functions of cashmere fabric.

[0003] However, CN209315030U discloses a composite cashmere fabric with high warmth retention. This composite cashmere fabric includes, from top to bottom, a cashmere fabric layer, a filling layer, and a fabric layer. The cashmere fabric layer is woven from yarn, and the filling layer includes several filling bags, the filling material of which can be feathers, silk, or polyester fiber. The entire structure achieves stronger warmth retention. However, with the rapid development of technology and the continuous iteration of new materials, mere warmth retention is no longer sufficient to meet market demands. In the medical field, there is a need for differential temperature regulation between the torso and limb areas, with the torso area maintained at 28°C and the limb areas at 26°C; and the fields of sportswear and aerospace also require the use of temperature-regulating clothing materials. Utility Model Content

[0004] The purpose of this invention is to adapt to the rapid technological advancements of the present stage and solve the problem of the single function of traditional cashmere fiber fabrics, by providing a cashmere fabric with temperature regulation function.

[0005] To achieve the above technical objectives, the following technical solution is provided: a cashmere fabric with temperature regulation function, wherein the bottom layer is a cashmere fiber layer, a PCM layer is coated on the cashmere fiber layer, and a waterproof and breathable layer is covered on the PCM layer, and the thickness of the PCM layer is ≤0.2mm.

[0006] The working principle of the PCM layer is as follows: when the ambient temperature rises, the PCM absorbs heat and melts, changing from a solid to a liquid state to store excess heat, thus slowing down the temperature rise of the body surface; when the ambient temperature drops, the PCM releases heat and crystallizes, changing from a liquid to a solid state to release the stored heat, thus maintaining the body surface warmth.

[0007] In this technical solution, the PCM layer is formed by storing the core material, alkane C22-C28 or bio-based palmitate, in a polyurethane or melamine resin nanocomposite film through a microcapsule preparation process to form particles of 10μm-20μm. Then, the PCM microcapsules are sprayed onto the cashmere fiber layer using nanoscale spraying technology.

[0008] In one feasible implementation, the PCM layer is embedded with a graphene fiber woven mesh, wherein the mesh spacing within the graphene fiber woven mesh is 0.8mm-2.5mm.

[0009] In one feasible approach, microgrooves are formed within the PCM layer, penetrating the graphene fiber woven mesh; a flexible temperature sensor is embedded within the microgrooves and electrically connected to the graphene fiber woven mesh.

[0010] The flexible temperature sensor is connected to a graphene fiber mesh via silver-plated nylon wire, combining flexibility and conductivity. The silver foil electrode is bonded to the graphene mesh using low-temperature hot pressing (below 120℃). The sensor's signal is transmitted wirelessly via Bluetooth, and a 3.7V, 50mAh flexible lithium battery within the microgroove enables the sensor and other modules to operate.

[0011] In feasible implementations, the thickness of the cashmere fiber layer is 0.5mm-1.2mm.

[0012] In one feasible implementation, the waterproof and breathable layer is a polyurethane membrane, which is bonded to the PCM layer with a water-based polyurethane adhesive layer. The polyurethane membrane is environmentally friendly and breathable, and is well-suited to cashmere fibers. The water-based polyurethane adhesive layer is cured at a low temperature, controlled below 80℃, to prevent the cashmere fibers from scorching.

[0013] Compared with existing technologies, this invention offers the following advantages: it enhances the warmth and antistatic properties of cashmere fabric while maintaining breathability. Furthermore, it surpasses the 2025 Smart Textile Standard in terms of heat storage density, breathability, and durability. In actual testing, the internal temperature rise was delayed by up to 45 minutes in a 35°C environment. Attached Figure Description

[0014] 1. Cashmere fiber layer, 2. PCM layer, 3. Waterproof and breathable layer.

[0015] Figure 1 This is a side sectional view of this embodiment;

[0016] Figure 2 This is a partial cross-sectional view of the outer layer of this embodiment; Detailed Implementation

[0017] like Figure 1 and Figure 2 As shown;

[0018] Example 1: A cashmere fabric with temperature regulation function, wherein the bottom layer is a cashmere fiber layer 1, the cashmere fiber layer 1 is coated with a PCM layer 2, the PCM layer 2 is covered with a waterproof and breathable layer 3, and the thickness of the PCM layer 2 is 0.1mm.

[0019] In this embodiment, the PCM layer is formed by storing the core material alkane C22-C28 in a polyurethane nanocomposite film through a microcapsule preparation process to form 10μm particles, and then spraying the PCM microcapsules onto the cashmere fiber layer using nanoscale spraying technology.

[0020] In this embodiment, a graphene fiber woven mesh is embedded in the PCM layer 2, wherein the mesh spacing within the graphene fiber woven mesh is 0.8 mm.

[0021] In this embodiment, microgrooves are formed in the PCM layer 2, and the microgrooves penetrate the graphene fiber woven mesh; a flexible temperature sensor is embedded in the microgrooves and electrically connected to the graphene fiber woven mesh.

[0022] The flexible temperature sensor is connected to a graphene fiber mesh via silver-plated nylon wire, combining flexibility and conductivity. The silver foil electrode is bonded to the graphene mesh using low-temperature hot pressing (below 120℃). The sensor's signal is transmitted wirelessly via Bluetooth, and a 3.7V, 50mAh flexible lithium battery within the microgroove enables the sensor and other modules to operate.

[0023] In this embodiment, the thickness of the cashmere fiber layer 1 is 0.5 mm.

[0024] In this embodiment, the waterproof and breathable layer 3 is a polyurethane membrane, and a water-based polyurethane adhesive layer is applied to bond the polyurethane membrane to the PCM layer 2. The polyurethane membrane is environmentally friendly and breathable, and is well-suited to cashmere fibers. The water-based polyurethane adhesive layer is cured at a low temperature, with the curing temperature controlled below 80°C to prevent the cashmere fibers from charring.

[0025] Example 2: A cashmere fabric with temperature regulation function, wherein the bottom layer is a cashmere fiber layer 1, the cashmere fiber layer 1 is coated with a PCM layer 2, the PCM layer 2 is covered with a waterproof and breathable layer 3, and the thickness of the PCM layer 2 is 0.2mm.

[0026] In this embodiment, the PCM layer is formed by storing the core material bio-based palmitate in a melamine resin nanocomposite film through a microcapsule preparation process to form 20μm particles, and then spraying the PCM microcapsules onto the cashmere fiber layer using nanoscale spraying technology.

[0027] In this embodiment, a graphene fiber woven mesh is embedded in the PCM layer 2, wherein the mesh spacing within the graphene fiber woven mesh is 2.5 mm.

[0028] In this embodiment, microgrooves are formed in the PCM layer 2, and the microgrooves penetrate the graphene fiber woven mesh; a flexible temperature sensor is embedded in the microgrooves and electrically connected to the graphene fiber woven mesh.

[0029] The flexible temperature sensor is connected to a graphene fiber mesh via silver-plated nylon wire, combining flexibility and conductivity. The silver foil electrode is bonded to the graphene mesh using low-temperature hot pressing (below 120℃). The sensor's signal is transmitted wirelessly via Bluetooth, and a 3.7V, 50mAh flexible lithium battery within the microgroove enables the sensor and other modules to operate.

[0030] In this embodiment, the thickness of the cashmere fiber layer 1 is 1.2 mm.

[0031] In this embodiment, the waterproof and breathable layer 3 is a polyurethane membrane, and a water-based polyurethane adhesive layer is applied to bond the polyurethane membrane to the PCM layer 2. The polyurethane membrane is environmentally friendly and breathable, and is well-suited to cashmere fibers. The water-based polyurethane adhesive layer is cured at a low temperature, with the curing temperature controlled below 80°C to prevent the cashmere fibers from charring.

[0032] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0033] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0036] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cashmere fabric with temperature regulating function, characterized in that, The bottom layer is a cashmere fiber layer (1), the cashmere fiber layer (1) is coated with a PCM layer (2), the PCM layer (2) is covered with a waterproof and breathable layer (3), and the thickness of the PCM layer (2) is ≤0.2mm.

2. The cashmere fabric with temperature regulating function according to claim 1, characterized in that, The PCM layer (2) is embedded with a graphene fiber woven mesh, wherein the mesh spacing of the graphene fiber woven mesh is 0.8mm-2.5mm.

3. The cashmere fabric with temperature regulating function according to claim 2, characterized in that, Microgrooves are formed in the PCM layer (2), and the microgrooves penetrate the graphene fiber woven mesh; a flexible temperature sensor is embedded in the microgrooves and electrically connected to the graphene fiber woven mesh.

4. The cashmere fabric with temperature regulating function according to claim 1, characterized in that, The thickness of the cashmere fiber layer (1) is 0.5mm-1.2mm.

5. The cashmere fabric with temperature regulating function according to claim 1, characterized in that, The waterproof and breathable layer (3) is a polyurethane membrane, and the polyurethane membrane is bonded to the PCM layer (2) with a layer of water-based polyurethane adhesive.

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