Bidirectional temperature adjusting fabric
By combining a hydrophilic outer layer with a porous hydrophobic inner layer, and utilizing the porous silica layer to adsorb moisture and transfer it through capillary effect, the fabric achieves both warmth and cooling functions, solving the problem that existing fabrics cannot achieve these two effects simultaneously and improving wearing comfort.
Patent Information
- Application Number
- CN202422541997.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-21
AI Technical Summary
Existing temperature-regulating fabrics cannot simultaneously achieve both warmth and cooling effects, and are inconvenient to wear.
It adopts a hydrophilic outer layer and a porous hydrophobic inner layer structure. The porous silica layer adsorbs moisture and uses capillary effect to transfer it to the hydrophilic outer layer, forming a one-way moisture-wicking and temperature-regulating structure. In the dry state, it uses infrared reflection to keep warm, and in the wet state, it uses infrared emission to dissipate heat and cool.
It achieves a two-way temperature regulation effect on the fabric, keeping it warm when dry and cooling it when sweating, maintaining comfort and ease of use.
Smart Images
Figure CN223631156U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of functional fabric structure, and particularly relates to a bidirectional temperature regulating fabric. BACKGROUND
[0002] Textile materials have been used as clothing and decoration almost throughout the history of human civilization. With the development of textile technology and the improvement of people's living standards, fabrics that were once mainly used for body covering have gradually developed towards multifunctional and intelligent directions to meet people's demand for life quality. Temperature regulating fabrics have been gradually applied to garment manufacturing, which has a significant effect on improving thermal comfort and wearability. However, most of the existing temperature regulating fabrics achieve the function of fabric temperature regulation through electric heating or fan cooling. Such fabrics have the disadvantages of consuming energy, being inconvenient to wear and affecting comfort.
[0003] At present, intelligent temperature regulating fabrics mainly achieve intelligent temperature regulation through thermal radiation regulation, thermal convection regulation and thermal conduction regulation. Some researchers have proposed a light structure thermal material, a warm bag and a manufacturing method thereof, which include an outer layer, a middle layer and an inner layer. The outer layer is an infrared low-emissivity layer, the middle layer is a thermal conduction and heat insulation layer, and the inner layer is an infrared barrier layer. This method constructs a structure of thermal material with the mode of infrared low-emissivity-thermal conduction blocking-infrared absorption blocking, simultaneously blocks the heat conduction and heat radiation cooling modes, and improves the thermal insulation and warmth retention performance of the material. However, this method realizes the heat insulation and refrigeration function by emitting sunlight and emitting mid-infrared, and cannot realize the effects of warmth retention and refrigeration at the same time.
[0004] Some researchers have proposed a temperature regulating fabric based on carbon nanotubes and a manufacturing method thereof, which includes an inner structure layer including a carbon nanotube layer and a metal layer overlaid on the carbon nanotube layer, the infrared light emissivity of the metal layer is lower than that of the carbon nanotube layer, and an outer structure layer covering at least a first surface and a second surface of the inner structure layer, the first surface and the second surface are arranged opposite to each other in the thickness direction of the inner structure layer, the outer structure layer has a hole structure and can allow infrared rays to pass through. This method utilizes the difference in infrared emissivity of the inner structure layer in the front and back directions, and can automatically regulate the temperature according to the change of the environment cold and warm, and simultaneously realize the effects of warmth retention or refrigeration. Although this method can realize the effects of warmth retention and refrigeration, it needs to replace the use surface to realize different effects, which is inconvenient for wearable fabrics. SUMMARY
[0005] In view of the technical problems in the background art, the present application provides a bidirectional temperature regulating fabric, which aims to solve the technical problems that the existing temperature regulating fabric cannot simultaneously realize the effects of warmth retention and refrigeration, and cannot guarantee the wear comfort of the fabric.
[0006] The embodiment of the present application provides a bidirectional temperature-regulating fabric, which comprises a hydrophilic outer layer and a porous hydrophobic inner layer, the porous hydrophobic inner layer is a porous metal film layer, the porous metal film layer is internally provided with a porous silica gel layer, and the hydrophilic outer layer comprises a hydrophilic fabric layer and a temperature-regulating fabric layer, and the hydrophilic fabric layer is arranged in contact with the porous hydrophobic inner layer.
[0007] In the technical scheme of the embodiment of the present application, the fabric forms a one-way moisture-guiding temperature-regulating structure from inside to outside through the hydrophilic outer layer and the porous hydrophobic inner layer, the porous silica gel layer can quickly absorb a large amount of water, keeps the porous hydrophobic inner layer dry, and when the porous silica gel layer reaches the saturation adsorption degree, the water is transmitted to the hydrophilic outer layer through the capillary effect, so that the one-way moisture-guiding effect of the fabric is realized. When the bidirectional temperature-regulating fabric is in a dry state, the infrared high-reflection effect of the porous hydrophobic inner layer, i.e. the porous metal film layer, prevents heat from being dissipated in the form of infrared radiation, so that the warm-keeping effect is realized. When the human body temperature rises and sweat is generated, the one-way moisture-guiding temperature-regulating structure formed by the porous hydrophobic inner layer and the hydrophilic outer layer enables the sweat to be quickly guided from the pores of the porous metal film layer of the inner layer to the hydrophilic outer layer, so that the sweat is quickly evaporated and dissipated from inside to outside, which can not only take away heat but also keep the fabric dry and comfortable.
[0008] In some embodiments, the temperature-regulating fabric layer is a fabric with variable infrared emissivity in dry and wet states. The infrared emissivity of the temperature-regulating fabric layer in the dry state is lower than 30%, and the infrared emissivity in the wet state is higher than 80%.
[0009] In the embodiment, the fabric with variable infrared emissivity in dry and wet states is selected as the temperature-regulating fabric layer, so that when the sweat is guided from the pores of the porous metal film layer of the inner layer to the hydrophilic outer layer in the wet state, the pores of the hydrophilic fabric layer and the temperature-regulating fabric layer are both infiltrated, at this time, the whole fabric changes into the infrared high-emission characteristic, so that the refrigeration effect is realized through infrared emission and heat dissipation, so as to prevent over-warming and overheating of the human body.
[0010] In some embodiments, the temperature-regulating fabric layer is one of a polyamide fiber fabric, a hydrophilic polyethylene fiber fabric and a special cross-section polyethylene fiber fabric; the special cross-section polyethylene fiber fabric is one of a peanut-shaped cross-section and a cross-shaped cross-section.
[0011] In the embodiment, the polyethylene fiber fabric with the special cross-section has good hydrophilicity, which can further improve the hydrophilicity of the hydrophilic outer layer.
[0012] In some embodiments, the thickness of the porous metal film layer is 200-400 μm, the pore size is 0.1-2 mm, and the pore spacing is 3-20 mm.
[0013] In some embodiments, the hydrophilic fabric layer is provided with hydrophilic short fibers on the side that contacts the porous hydrophobic inner layer, and the hydrophilic short fibers extend into the pores of the porous hydrophobic inner layer.
[0014] In this embodiment, the provision of the hydrophilic short fibers facilitates the transmission of sweat throughout the fabric, i.e., after the sweat is adsorbed by the porous silica gel layer in the pores of the porous metal film layer, the moisture is transmitted to the hydrophilic outer layer by capillary effect, and the presence of the hydrophilic short fibers in the pores enhances the capillary effect and improves the transmission efficiency of the sweat.
[0015] In some embodiments, the hydrophilic fabric layer is one of a polyamide fiber fabric, a hydrophilic polyethylene fiber fabric, and a polypropylene fiber fabric.
[0016] In some embodiments, the bidirectional temperature regulating fabric is further provided with a flexible skin-adhesive layer on the inner side of the porous hydrophobic inner layer to improve the wearing comfort of the fabric.
[0017] In some embodiments, the thickness of the hydrophilic fabric layer is 30-80 μm, the thickness of the temperature regulating fabric layer is 300-500 μm, and the composite mode between the hydrophilic fabric layer and the temperature regulating fabric layer is weaving or bonding.
[0018] In some embodiments, the porous metal film layer is one of a gold metal film, a silver metal film, and an aluminum metal film, and the porous metal film layer is adhered to the inner side surface of the hydrophilic fabric layer in a plating and pressing mode.
[0019] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings used in the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.
[0021] Figure 1 Fig. 1 is a structural schematic diagram of a bidirectional temperature regulating fabric in an embodiment of the present application;
[0022] Fig. 1 is a structural schematic diagram of a bidirectional temperature regulating fabric in an embodiment of the present application; DETAILED DESCRIPTION
[0023] The embodiments of the present application will be described in detail below with reference to the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot be used to limit the protection scope of the present application.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising," "comprises" and "including" as used herein are synonymous with and meant to have the same meaning as the term "including"; the term "coupled" as used herein means the joining of two members together with one or more intervening members coupled between the two members.
[0025] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.
[0026] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0027] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.
[0028] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).
[0029] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0030] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0031] In the prior art, the intelligent temperature regulating fabric mainly realizes intelligent temperature adjustment through heat radiation regulation method, heat convection regulation method and heat conduction regulation method. However, the intelligent temperature regulating fabric in the above method is difficult to realize both warm-keeping and refrigeration effects. The fabric capable of realizing both warm-keeping and refrigeration effects generally needs to change the use surface to realize different effects, which is inconvenient for wearable fabric, and the structure is complex, reducing the wearing comfort of the fabric.
[0032] To solve the technical problem that the existing temperature regulating fabric cannot simultaneously achieve the effects of keeping warm and cooling, and cannot guarantee the wearing comfort of the fabric, the application provides a bidirectional temperature regulating fabric, which comprises a hydrophilic outer layer and a porous hydrophobic inner layer, the porous hydrophobic inner layer is a porous metal film layer, the porous metal film layer is internally provided with a porous silica gel layer, the hydrophilic outer layer comprises a hydrophilic fabric layer and a temperature regulating fabric layer, and the hydrophilic fabric layer is arranged in contact with the porous hydrophobic inner layer. The fabric forms a one-way moisture guiding and temperature regulating structure from inside to outside through the hydrophilic outer layer and the porous hydrophobic inner layer, wherein the porous silica gel layer can quickly absorb a large amount of water, keep the porous hydrophobic inner layer dry, and after the porous silica gel layer reaches the saturation adsorption degree, the water is transmitted to the hydrophilic outer layer through the capillary effect, so that the one-way moisture guiding effect of the fabric is realized. When the bidirectional temperature regulating fabric is in a dry state, the infrared high reflection effect of the porous hydrophobic inner layer, i.e. the porous metal film layer, prevents heat from being dissipated in the form of infrared radiation, so that the effect of keeping warm is realized. When the human body temperature rises and sweat is generated, the one-way moisture guiding and temperature regulating structure formed by the porous hydrophobic inner layer and the hydrophilic outer layer enables the sweat to be quickly guided from the pores of the porous metal film layer of the inner layer to the hydrophilic outer layer, so that the sweat is quickly evaporated and dissipated from the inside to the outside, which can remove heat on one hand and keep the fabric dry and comfortable on the other hand.
[0033] The bidirectional temperature regulating fabric provided by the application can be used for preparing close-fitting warm-keeping and cooling clothes, when the fabric is in a dry state, the infrared blocking effect of the porous hydrophobic inner layer endows the clothes with the effect of keeping warm, when the human body sweat infiltrates the fabric, the fabric has the one-way moisture guiding performance and the infrared high emission property, so that the functions of quickly evaporating sweat and infrared radiation cooling are realized, and the bidirectional temperature regulating effect is realized, the structure is novel, convenient to use, and has significant economic value.
[0034] The following embodiments are described by taking a bidirectional temperature regulating fabric 100 provided by the application as an example for the convenience of description.
[0035] Please refer to Figure 1 The bidirectional temperature regulating fabric 100 provided by the application comprises a hydrophilic outer layer 110 and a porous hydrophobic inner layer 120, the porous hydrophobic inner layer 120 is a porous metal film layer, the porous metal film layer is internally provided with a porous silica gel layer 121, the hydrophilic outer layer 110 comprises a hydrophilic fabric layer 111 and a temperature regulating fabric layer 112, and the hydrophilic fabric layer 111 is arranged in contact with the porous hydrophobic inner layer 120. The porous silica gel layer 121 is attached to the inner wall of the pores of the porous hydrophobic inner layer 120 in the shape of a continuous hemisphere.
[0036] In the technical scheme of the embodiment of the present application, the fabric forms a one-way moisture guiding and temperature adjusting structure from inside to outside through the hydrophilic outer layer 110 and the porous hydrophobic inner layer 120, wherein the porous silica gel layer 121 can quickly absorb a large amount of water, keep the porous hydrophobic inner layer 120 dry, and when the porous silica gel layer 121 reaches the saturation adsorption degree, the water is transmitted to the hydrophilic outer layer 110 through the capillary effect, thereby realizing the one-way moisture guiding function of the fabric. When the bidirectional temperature adjusting fabric 110 is in a dry state, the infrared high reflection of the porous hydrophobic inner layer 120, i.e., the porous metal film layer, prevents heat from being dissipated in the form of infrared radiation, thereby realizing the warm-keeping effect. When the human body temperature rises and sweat is generated, the one-way moisture guiding and temperature adjusting structure formed by the porous hydrophobic inner layer 120 and the hydrophilic outer layer 110 enables the sweat to be quickly guided from the pores of the porous metal film layer of the inner layer to the hydrophilic outer layer 110, thereby realizing the quick evaporation and dissipation of the sweat from inside to outside, which can not only remove heat but also keep the fabric dry and comfortable.
[0037] Further, in some embodiments, the temperature adjusting fabric layer 112 is a fabric with variable infrared emissivity in dry and wet states. The infrared emissivity of the temperature adjusting fabric layer 112 in the dry state is lower than 30%, and the infrared emissivity in the wet state is higher than 80%. By selecting the fabric with variable infrared emissivity in dry and wet states as the temperature adjusting fabric layer 112, when the sweat is guided from the pores of the porous metal film layer of the inner layer to the hydrophilic outer layer 110 in the wet state, the pores of the hydrophilic fabric layer 111 and the temperature adjusting fabric layer 112 are both infiltrated, at this time, the whole fabric changes into the infrared high emission characteristic, thereby realizing the refrigeration effect through the infrared emission and heat dissipation, so as to prevent the over-warming and overheating of the human body.
[0038] The temperature adjusting fabric layer 112 is one of a polyamide fiber fabric, a hydrophilic polyethylene fiber fabric, and a special cross-section polyethylene fiber fabric. The special cross-section polyethylene fiber fabric is one of a peanut-shaped cross-section and a cross-shaped cross-section. The polyethylene fiber fabric with the special cross-section has good hydrophilicity, which can further improve the hydrophilicity of the hydrophilic outer layer 110. The hydrophilic fabric layer 111 is one of a polyamide fiber fabric, a hydrophilic polyethylene fiber fabric, and a polypropylene fiber fabric.
[0039] The side of the hydrophilic fabric layer 111 in contact with the porous hydrophobic inner layer 120 is provided with hydrophilic short fibers 113, and the hydrophilic short fibers 113 extend into the pores of the porous hydrophobic inner layer 120. The provision of the hydrophilic short fibers 113 is beneficial to the transmission of sweat in the whole fabric, i.e., after the sweat is absorbed by the porous silica gel layer 121 in the pores of the porous metal film layer, the water is transmitted to the hydrophilic outer layer 110 through the capillary effect, and the presence of the hydrophilic short fibers 113 in the pores enhances the capillary effect and improves the transmission efficiency of the sweat. It should be noted that the hydrophilic short fibers 113 can be formed by sanding the hydrophilic fabric layer 111.
[0040] The bidirectional temperature regulating fabric 100 is further provided with a flexible skin layer 130 on the inner side of the porous hydrophobic inner layer 120 to improve the wearing comfort of the fabric. The flexible skin layer 130 is also a hydrophobic fabric, and has a thickness of 30-50 μm to avoid affecting the one-way moisture guiding effect of the bidirectional temperature regulating fabric 100.
[0041] The hydrophilic fabric layer 111 has a thickness of 30-80 μm, and the temperature regulating fabric layer 112 has a thickness of 300-500 μm. The composite mode between the hydrophilic fabric layer 111 and the temperature regulating fabric layer 112 is weaving or bonding. The porous metal film layer has a thickness of 200-400 μm, a pore size of 0.1-2 mm, and a pore spacing of 3-20 mm. The porous metal film layer is one of a gold metal film, a silver metal film, and an aluminum metal film, and is adhered to the inner side surface of the hydrophilic fabric layer 111 in a plating and pressing mode.
[0042] The following specific examples are listed, it should be noted that the examples described below are exemplary, only for the explanation of the application, and can not be understood as a limitation of the application. The specific technology or condition is not noted in the examples, according to the technology or condition described in the literature or according to the product manual. The reagents or instruments are not noted by the manufacturer, which are conventional products that can be obtained by market.
[0043] Example 1
[0044] The bidirectional temperature regulating fabric 100 provided in the embodiment includes a hydrophilic outer layer 110 and a porous hydrophobic inner layer 120. The inner side of the porous hydrophobic inner layer 120 is further provided with a flexible skin layer 130. The porous hydrophobic inner layer 120 is a porous aluminum film inner layer. The porous metal film layer has a porous silica gel layer 121 inside the pores. The hydrophilic outer layer 110 includes a hydrophilic fabric layer 111 and a temperature regulating fabric layer 112. The hydrophilic fabric layer 111 is in contact with the porous hydrophobic inner layer 120. The thickness of the hydrophilic fabric layer 111 is 80 μm, and the thickness of the temperature regulating fabric layer 112 is 300 μm. The hydrophilic fabric layer 111 and the temperature regulating fabric layer 112 are both polyamide fiber fabrics. The flexible skin layer 130 is a flexible hydrophobic cotton fabric with a thickness of 30 μm. The thickness of the porous aluminum film is about 300 μm, the pore size is about 0.8 mm, the pore spacing is 10 mm, and the pores are filled with hydrophilic short polyamide fibers. In this embodiment, in the warm mode, the reflectivity of the entire fabric is low, and the heat dissipation is enhanced. In the cooling mode, the reflectivity of the entire fabric is high, and the heat dissipation is low, which has a good warm-keeping effect.
[0045] Note that the present application is not limited to the above-described embodiments. The above-described embodiments are merely examples, and embodiments having substantially the same configuration, function, and effect as the technical idea of the present application are included in the technical scope of the present application. Furthermore, other modes constructed by applying various modifications to the embodiments, or by combining part of the configurations of the embodiments, which can be conceived by those skilled in the art, without departing from the spirit of the present application, are also included in the scope of the present application.
Claims
1. A bidirectional temperature-regulating fabric, characterized in that, The fabric comprises a hydrophilic outer layer and a porous hydrophobic inner layer. The porous hydrophobic inner layer is a porous metal film layer, and a porous silicone layer is disposed inside the pores of the porous metal film layer. The hydrophilic outer layer includes a hydrophilic fabric layer and a temperature-regulating fabric layer. The hydrophilic fabric layer is in contact with the porous hydrophobic inner layer. Hydrophilic short fibers are disposed on the side of the hydrophilic fabric layer that contacts the porous hydrophobic inner layer, and the hydrophilic short fibers extend into the pores of the porous hydrophobic inner layer. The bidirectional temperature-regulating fabric also has a flexible skin-adhesive layer on the inner side of the porous hydrophobic inner layer to improve the wearing comfort of the fabric.
2. The bidirectional temperature-regulating fabric according to claim 1, characterized in that, The temperature-regulating fabric layer is a fabric with variable infrared emissivity in both dry and wet states.
3. The bidirectional temperature-regulating fabric according to claim 2, characterized in that, The temperature-regulating fabric layer has an infrared emissivity of less than 30% in a dry state and a higher than 80% in a wet state.
4. The bidirectional temperature-regulating fabric according to claim 3, characterized in that, The temperature-regulating fabric layer is one of polyamide fiber fabric, hydrophilic polyethylene fiber fabric, or irregularly shaped cross-section polyethylene fiber fabric; the irregularly shaped cross-section polyethylene fiber fabric is either peanut-shaped or cross-shaped.
5. The bidirectional temperature-regulating fabric according to claim 1, characterized in that, The porous metal film has a thickness of 200~400 μm, a pore size of 0.1~2 mm, and a pore spacing of 3~20 mm.
6. The bidirectional temperature-regulating fabric according to claim 1, characterized in that, The hydrophilic fabric layer is one of polyamide fiber fabric, hydrophilic polyethylene fiber fabric, or polypropylene fiber fabric.
7. The bidirectional temperature-regulating fabric according to claim 1, characterized in that, The thickness of the hydrophilic fabric layer is 30~80μm, and the thickness of the temperature-regulating fabric layer is 300~500μm; the composite method between the hydrophilic fabric layer and the temperature-regulating fabric layer is weaving or bonding.
8. The bidirectional temperature-regulating fabric according to claim 5, characterized in that, The porous metal film layer is one of gold, silver, or aluminum, and is adhered to the inner surface of the hydrophilic fabric layer by means of coating and pressing.