Temperature-regulating fibers and fabrics

Abstract

Fibers and fabrics with temperature regulating properties are provided. [Solution] The fiber 1 comprises a sheath layer 11 and a core layer 12. The sheath layer surrounds the core layer. The sheath layer may be a PA6 layer, a PET layer, a PP layer, a POE layer, a modified acrylic layer, or a polyethylene layer. It protects the core layer, imparts basic physical properties to the fiber, such as good strength, abrasion resistance, elasticity, and aging resistance, and enhances the fiber's stability during processing and use. The core layer is made of any one or combination of polyethylene core material, phase change core material, and far-infrared core material. The use of a phase change core material allows the fiber to automatically absorb or release heat in response to changes in the external environmental temperature, effectively regulating the surface temperature of the fabric and creating a comfortable thermal environment. Furthermore, by selecting different sheath and core layer combinations, the fiber can achieve a variety of integrated functions.

Description

[Technical Field]

[0001] The present invention relates to the field of textiles, and more particularly to fibers and textiles with temperature regulation properties. [Background technology]

[0002] Existing fibers are usually spun from a single fiber material, and textiles made from such traditional fibers have obvious shortcomings in adapting to changes in the external environment.

[0003] When the external environment fluctuates drastically, the surface temperature of the fabric is easily affected by the external environment due to the characteristics of the single fiber material. For example, in a high temperature environment, the surface temperature of the fabric rises rapidly, and in a low temperature environment, the surface temperature of the fabric drops rapidly. This large temperature fluctuation has a serious impact on the thermal comfort of the human body.

[0004] Furthermore, fibers made of a single component have a relatively single function, making it difficult to meet the needs for special functions such as temperature regulation.

[0005] Therefore, we propose this idea. Summary of the Invention [Means for solving the problem]

[0006] The purpose of the present invention is to provide a fiber and fabric with temperature regulation function to solve the technical problem that the common fibers in the prior art are usually spun from a single fiber material, have poor temperature adaptability, and have a single function, which cannot meet people's needs for special functions such as temperature regulation of fabrics. The details of the various technical effects that can be achieved by the preferred technical solutions among the various technical solutions provided by the present invention are as follows:

[0007] In order to achieve the above object, the present invention provides the following technical solutions: The present invention provides a fiber with temperature regulating function, which includes a sheath layer and a core layer, and the sheath layer is wrapped around the core layer, where the sheath layer includes a PA6 layer, a PET layer, a PP layer, a POE layer, a modified acrylic layer, or a polyethylene layer, and the core layer includes any one or any combination of a polyethylene core material, a phase change core material, or a far-infrared core material.

[0008] Preferably, the phase change core material comprises any one or any combination of a temperature regulating alkane material, a solid phase change material, or a phase change microcapsule.

[0009] Preferably, the weight percentage of the sheath layer in the fiber is 20% to 80%, and the weight percentage of the core layer in the fiber is 20% to 80%.

[0010] Preferably, the sheath layer accounts for 80% by weight of the fiber and the core layer accounts for 20% by weight of the fiber, wherein the core layer comprises a polyethylene core material and a phase change core material, the phase change core material comprises a temperature regulating alkane material, the polyethylene core material accounts for 10% by weight of the fiber, and the temperature regulating alkane material accounts for 10% by weight of the fiber.

[0011] Preferably, the sheath layer comprises a PA6 layer, the PA6 layer accounting for 60% by weight of the fiber, the core layer accounting for 40% by weight of the fiber, the core layer comprising a polyethylene core material and a phase change core material, the phase change core material comprising a temperature regulating alkane material, the polyethylene core material accounting for 20% by weight of the fiber, and the temperature regulating alkane material accounting for 20% by weight of the fiber.

[0012] Preferably, the sheath layer comprises a polyethylene layer, the polyethylene layer comprising 60% by weight of the fiber, and the core layer comprising 40% by weight of the fiber, wherein the core layer comprises a polyethylene core material and a phase change core material, the phase change core material comprising a temperature regulating alkane material, the polyethylene core material comprising 20% ​​by weight of the fiber, and the temperature regulating alkane material comprising 20% ​​by weight of the fiber.

[0013] Preferably, the sheath layer comprises a polyethylene layer, the polyethylene layer comprising 50% by weight of the fiber, and the core layer comprising 50% by weight of the fiber, wherein the core layer comprises a polyethylene core material and a phase change core material, the phase change core material comprises phase change microcapsules, the polyethylene material comprising 25% by weight of the fiber, and the phase change microcapsules comprising 25% by weight of the fiber.

[0014] Preferably, the sheath layer comprises a polyethylene layer, the polyethylene layer accounting for 80% by weight of the fiber, and the core layer accounting for 20% by weight of the fiber, wherein the core layer comprises a polyethylene core material and a far-infrared core material, the far-infrared core material comprises an AL2O3 material, the polyethylene material accounting for 10% by weight of the fiber, and the AL2O3 material accounting for 10% by weight of the fiber.

[0015] Preferably, the fabric is The fabric is made of the thermoregulating fiber. [Effects of the Invention]

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention effectively solves the technical problem that the common fibers in the prior art are usually spun from a single fiber material, which has poor temperature adaptability and a single function, and cannot meet people's needs for special functions such as temperature regulation of textiles.

[0017] The present invention provides a fiber with temperature regulating function, which includes a sheath layer and a core layer, and the sheath layer is wrapped around the core layer, where the sheath layer includes a PA6 layer, a PET layer, a PP layer, a POE layer, a modified acrylic layer, or a polyethylene layer, and the core layer includes any one or any combination of a polyethylene core material, a phase change core material, or a far-infrared core material.

[0018] The sheath layer of this invention serves as the outer layer of the fiber, protecting the core layer and providing the fiber with basic physical properties such as good strength, abrasion resistance, elasticity, and anti-aging properties, thereby enhancing the fiber's stability during processing and use. The core layer is used to achieve fiber temperature regulation, with the phase-change core material capable of undergoing phase change within a specific temperature range. When the external ambient temperature rises and reaches the phase-change temperature, the phase-change core material absorbs heat, transforms from a solid state to a liquid state, and stores the excess heat, thereby preventing the surface temperature of the fabric from rising too quickly and cooling the human body. When the external ambient temperature drops, the phase-change core material releases the stored heat, transforming from a liquid state to a solid state, providing heat to the fabric, preventing the surface temperature from becoming too low, and making the human body feel warm. This automatic absorption and release of heat effectively regulates the surface temperature of the fabric, allowing the fabric to better adapt to rapid fluctuations in the external environment, creating a comfortable thermal environment, and increasing the human body's thermal comfort.

[0019] In addition, by selecting different combinations of sheath and core layers, the fiber can achieve the integration of various functions, further expanding the application range of the fiber and meeting people's demand for diversified textiles. [Brief explanation of the drawings]

[0020] In order to more clearly describe the technical aspects of the embodiments of the present invention or the prior art, the following briefly describes the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without paying creative labor. [Figure 1] 1 is a structural schematic diagram of a fiber optic device with temperature control function provided by the present invention; [Figure 2] 1 is a schematic diagram of the structure of the fabric of the present invention. [Figure 3] FIG. 10 is a surface temperature step cooling curve test diagram for the fiber of Example 3. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in detail below. Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the examples in the present invention, all other embodiments that can be obtained by those skilled in the art without creative work belong to the scope protected by the present invention.

[0022] Example 1 As shown in FIG. 1, the present invention provides a fiber with temperature regulating function, which includes a sheath layer 11 and a core layer 12, where the sheath layer 11 is covered on the outside of the core layer 12, where the sheath layer 11 includes a PA6 layer, a PET layer, a PP layer, a POE layer, a modified acrylic layer or a polyethylene layer, and the core layer 12 includes any one or any combination of a polyethylene core material, a phase change core material or a far-infrared core material.

[0023] The sheath layer 11 is used as the outer layer of the fiber 1 to protect the core layer 12, and provides the fiber 1 with basic physical properties such as good strength, abrasion resistance, elasticity and aging resistance, and improves the stability of the fiber 1 during processing and use.

[0024] Different materials have different properties, for example, the PA 6 layer is made of polyamide 6 material, which has properties such as light weight, high strength, wear resistance, self-lubricating and solvent resistance.

[0025] The PET layer is made of polyethylene terephthalate material, which has stable performance, good mechanical properties and chemical stability, high tensile strength, good toughness and impact resistance, and is resistant to cracking, wrinkling, staining and deformation.

[0026] The PP layer is made of polypropylene material, which is lightweight and has good physical properties, including high strength, rigidity, abrasion resistance, elasticity and hydrophobicity.

[0027] The POE layer is made of an ethylene-octene copolymer material, which has good stretchability, shape retention, acid-base resistance, etc., and provides the fiber 1 with elasticity.

[0028] The modified acrylic layer is manufactured using polyacrylonitrile material after undergoing a modification process, and is soft, fluffy, easy to dye, light-resistant, antibacterial, and other characteristics, enhancing the anti-aging performance of the fiber.

[0029] The polyethylene layer is made of polyethylene material, which has characteristics such as high strength, low density, and good insulation properties.

[0030] The core layer 12 is used to realize the temperature regulation function of the fiber 1, and the phase-change core can change phase within a certain temperature range. When the external ambient temperature rises and reaches the phase-change temperature, the phase-change core absorbs heat, transforms from a solid state to a liquid state, and stores the excess heat, preventing the surface temperature of the fabric 2 from rising too quickly and making the human body feel cold. When the external ambient temperature drops, the phase-change core releases the stored heat, transforming from a liquid state to a solid state, providing heat to the fabric 2, preventing the surface temperature from becoming too low and making the human body feel warm. This automatic absorption and release of heat effectively regulates the surface temperature of the fabric 2, allowing the fabric 2 to better adapt to rapid fluctuations in the external environment, creating a comfortable thermal environment, and increasing the temperature comfort experienced by the human body.

[0031] The far-infrared core material emits far-infrared rays in a specific wavelength range, which can promote blood circulation and metabolism in the human body.

[0032] The polyethylene core material has good flexibility and certain strength, provides stable support for the phase change core material and the far-infrared core material, and enhances the stability of the core layer 12.

[0033] Different combinations of sheath layer 11 and core layer 12 can be selected according to usage needs, and fiber 1 can realize the integration of various functions such as temperature regulation and blood circulation promotion, further expanding the application range of fiber 1, thereby ensuring good temperature regulation properties, and making fabrics 2 woven using this fiber 1 diverse in type and wide in application range, meeting people's needs for diversification of fabrics 2.

[0034] In alternative embodiments, the phase change core material comprises any one or combination of a temperature regulating alkane material, a solid phase change material, or phase change microcapsules.

[0035] The temperature-regulating alkane material has good thermal storage and temperature-regulating energy storage performance.

[0036] Solid-state phase change materials exist in solid form at room temperature and have high mechanical strength and stability.

[0037] Phase change microcapsules are formed by encapsulating a phase change material in a tiny shell, which effectively isolates the phase change material from the external environment, improving the long-term stability and durability of the temperature regulation function of the phase change material.

[0038] In an alternative embodiment, the weight percentage of the sheath layer 11 in the fiber 1 is 20% to 80%, and the weight percentage of the core layer 12 in the fiber 1 is 20% to 80%, which can be flexibly adjusted according to usage needs.

[0039] The sheath layer 11 and the core layer 12 are formed through processes such as melting, metering, composite spinning, cooling, oiling, hot drawing, and winding. During spinning, the spinning temperature is set to about 20°C above the melting point temperature, and on the premise of ensuring spinnability, the draw ratio is increased as much as possible, and the content of the temperature-regulating alkane is increased to enhance the temperature-regulating effect.

[0040] To avoid volatilization of the phase change material at high temperatures, a low-temperature spinning process is used to maximize the retention of the absolute alkane content. If the content of the temperature-regulating alkane in the core layer 12 is too high, the core layer 12 of the fiber 1 will lack strength. In this case, by adjusting the ratio of the sheath layer 11 to the core layer 12, the sheath layer 11 can impart strong elongation and weavability to the fiber 1.

[0041] By expanding the range of materials that can be selected for the sheath layer 11 and the core layer 12 and by flexibly adjusting the component ratios of the sheath layer 11 and the core layer 12, the temperature control function of the fiber 1 is realized, and it also has other functions.

[0042] Example 2 Example 2 builds on Example 1.

[0043] The sheath layer 11 accounts for 80% by weight of the fiber 1, and the core layer accounts for 20% by weight of the fiber 1, where the core layer 12 includes a polyethylene core material and a phase change core material, the phase change core material includes a temperature regulating alkane material, the polyethylene core material accounts for 10% by weight of the fiber 1, and the temperature regulating alkane material accounts for 10% by weight of the fiber 1.

[0044] The fiber 1 of this embodiment does not damage knitting needles during weaving.

[0045] Example 3 Example 3 builds on Example 1.

[0046] The sheath layer 11 comprises a PA6 layer, which accounts for 60% by weight of the fiber 1; the core layer 12 comprises 40% by weight of the fiber 1; the core layer 12 comprises a polyethylene core material and a phase change core material; the phase change core material comprises a temperature regulating alkane material; the polyethylene core material accounts for 20% by weight of the fiber; and the temperature regulating alkane material accounts for 20% by weight of the fiber.

[0047] The fiber 1 of this embodiment has a high forming temperature for the woven fabric 2 to prevent surface adhesion at high temperatures.

[0048] As shown in FIG. 3, the surface temperature step cooling curve test diagram for the fiber 1 of this example shows that the fiber 1 has good temperature control performance.

[0049] Example 4 Example 4 builds on Example 1.

[0050] The sheath layer 11 comprises a polyethylene layer, the polyethylene layer 1 occupies 60% by weight of the fiber, and the core layer 12 occupies 40% by weight of the fiber, wherein the core layer 12 comprises a polyethylene core material and a phase change core material, the phase change core material comprises a temperature regulating alkane material, the polyethylene core material occupies 20% by weight of the fiber, and the temperature regulating alkane material occupies 20% by weight of the fiber.

[0051] The fiber 1 of this embodiment has a temperature control function and serves to adjust the solid-liquid transition temperature.

[0052] Example 5 Example 5 builds on Example 1.

[0053] The sheath layer comprises a polyethylene layer, the polyethylene layer comprising 50% by weight of the fiber, and the core layer comprising 50% by weight of the fiber, wherein the core layer comprises a polyethylene core material and a phase change core material, the phase change core material comprising phase change microcapsules, the polyethylene material comprising 25% by weight of the fiber, and the phase change microcapsules comprising 25% by weight of the fiber.

[0054] The core layer 12 contains phase change microcapsules and can serve to extend the durability of the fabric, making the fiber 1 of this embodiment more durable.

[0055] Example 6 Example 6 builds on Example 1.

[0056] The sheath layer 11 includes a polyethylene layer, and the polyethylene layer accounts for 80% by weight of the fiber 1, and the core layer 12 accounts for 20% by weight of the fiber 1, where the core layer 12 includes a polyethylene core material and a far-infrared core material, and the far-infrared core material includes an AL2O3 material, and the polyethylene material accounts for 10% by weight of the fiber 1, and the AL2O3 material accounts for 10% by weight of the fiber 1.

[0057] The fiber 1 of this embodiment has good heat retention properties and does not damage knitting needles during weaving.

[0058] Example 7 Example 7 builds on Example 1.

[0059] Example 7 builds on any of the above examples.

[0060] This embodiment provides a fabric, and as shown in FIG. 2, the fabric 2 is made of the fiber 1 having the temperature regulating function.

[0061] It can be understood that the same or similar parts in each of the above-mentioned embodiments can be referred to each other, and that content that is not described in detail in some embodiments can be referred to the same or similar content in other embodiments.

[0062] In describing this invention, unless otherwise specified, "plurality" means two or more, and designated orientations or positions, such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," are orientations or positions shown in the drawings and are intended solely to facilitate description of this invention and do not indicate or imply that a designated device or element must be configured and operated in a particular orientation, and therefore should not be construed as a limitation on this invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be understood to indicate or imply relative importance.

[0063] In describing the present invention, unless otherwise clearly specified and limited, the terms "attached," "connected," and "connection" should be understood in a broad sense, and may refer to, for example, fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, direct connection, or indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0064] In the description herein, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "one example" means that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example described herein. In this specification, general references to 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 any one or more embodiments or examples.

[0065] Although the above description is merely a specific embodiment of the present invention, the scope of protection of the present invention is not limited thereto, and should include any modifications or replacements that can be easily conceived by a person skilled in the art within the technical scope of the disclosed invention, which should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be in accordance with the scope of protection of the claims. [Explanation of symbols]

[0066] 1, fiber; 11, sheath layer; 12, core layer; 2, fabric.

Claims

1. A fiber with temperature regulating function, comprising a sheath layer and a core layer, the sheath layer being covered on the outside of the core layer, wherein the sheath layer comprises a PA6 layer, a PET layer, a PP layer, a POE layer, a modified acrylic layer or a polyethylene layer, and the core layer comprises any one or any combination of a polyethylene core material, a phase change core material or a far-infrared core material.

2. The fiber with temperature regulating function according to claim 1 , wherein the phase change core material comprises any one or any combination of a temperature regulating alkane material, a solid phase change material, or a phase change microcapsule.

3. A fiber with temperature regulating function as described in claim 2, characterized in that the weight percentage of the sheath layer in the fiber is 20% to 80%, and the weight percentage of the core layer in the fiber is 20% to 80%.

4. The fiber having temperature regulating function described in claim 3, characterized in that the sheath layer accounts for 80% by weight of the fiber and the core layer accounts for 20% by weight of the fiber, wherein the core layer includes a polyethylene core material and a phase change core material, the phase change core material includes a temperature regulating alkane material, the polyethylene core material accounts for 10% by weight of the fiber, and the temperature regulating alkane material accounts for 10% by weight of the fiber.

5. The fiber with temperature regulating function described in claim 3, characterized in that the sheath layer includes a PA6 layer, the PA6 layer accounts for 60% by weight of the fiber, the core layer accounts for 40% by weight of the fiber, the core layer includes a polyethylene core material and a phase change core material, the phase change core material includes a temperature regulating alkane material, the polyethylene core material accounts for 20% by weight of the fiber, and the temperature regulating alkane material accounts for 20% by weight of the fiber.

6. The fiber having temperature regulating function described in claim 3, characterized in that the sheath layer includes a polyethylene layer, the polyethylene layer accounts for 60% by weight of the fiber, and the core layer accounts for 40% by weight of the fiber, wherein the core layer includes a polyethylene core material and a phase change core material, the phase change core material includes a temperature regulating alkane material, the polyethylene core material accounts for 20% by weight of the fiber, and the temperature regulating alkane material accounts for 20% by weight of the fiber.

7. The fiber having temperature regulating function described in claim 3, characterized in that the sheath layer includes a polyethylene layer, the polyethylene layer accounts for 50% by weight of the fiber, and the core layer accounts for 50% by weight of the fiber, wherein the core layer includes a polyethylene core material and a phase change core material, the phase change core material includes phase change microcapsules, the polyethylene material accounts for 25% by weight of the fiber, and the phase change microcapsules accounts for 25% by weight of the fiber.

8. The sheath layer includes a polyethylene layer, and the polyethylene layer accounts for 80% by weight of the fiber. The core layer accounts for 20% by weight of the fiber. The core layer includes a polyethylene core material and a far-infrared core material. The far-infrared core material is Al. ２ O ３ The polyethylene material is 10% by weight of the fiber, and the AL ２ O ３ 4. The fiber having temperature regulating properties according to claim 3, wherein the material accounts for 10% by weight of the fiber.

9. A woven fabric, The woven fabric is made of the fiber having a temperature regulating function according to any one of claims 1 to 8.

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