Warm-keeping structure with far-infrared fiber layer filled in bio-based temperature-adjusting fiber layer

Abstract

The invention provides a warm-keeping structure with a far infrared fiber layer filled in a bio-based temperature-adjusting fiber layer, which comprises an outer layer fabric and a core layer fabric, and the core layer fabric is arranged in the outer layer fabric; the core layer fabric comprises an upper temperature regulation layer, a temperature storage layer and a lower temperature regulation layer, the temperature storage layer is arranged in the middle of the core layer fabric, the upper temperature regulation layer and the lower temperature regulation layer respectively cover the upper surface and the lower surface of the temperature storage layer, and the upper temperature regulation layer, the temperature storage layer and the lower temperature regulation layer are overlapped to form a sandwich structure; the temperature storage layer is configured to efficiently absorb heat of surrounding air, and the upper temperature adjusting layer and the lower temperature adjusting layer are configured to adjust the temperature in real time based on room temperature and sensible temperature changes. A sandwich temperature control structure is adopted, the middle layer is filled with far infrared fibers, heat in surrounding air is efficiently absorbed, a heat storage pool is formed, and rapid temperature rise during sleeping is achieved. The upper layer and the lower layer are filled with bio-based temperature adjusting fibers, the temperature is adjusted to a comfortable sleep temperature in real time based on room temperature and sensible temperature changes, a user is prevented from being cold or hot during deep sleep, and the sleep comfort is improved.

Description

Technical Field

[0001] The invention relates to the technical field of textile engineering, and in particular to a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based temperature regulating fiber layer. Background Art

[0002] A quilt is a type of bedding. It is a rectangular piece of cloth that is large enough to cover the human body and filled with various types of flannel or cotton wool. It is generally used to keep warm during sleep. Quilts are indispensable in people's lives. One-third of a person's life is spent sleeping, so a good quilt can not only improve sleep quality, but also improve people's sub-health conditions.

[0003] At present, ordinary quilts are made of front fabric and back fabric, and the quilt core material is filled between the front fabric and the back fabric. The quilt core material generally adopts a flocculent structure of cotton, rayon and other materials. In cold seasons, ordinary quilts only play a role of heat preservation after covering the human body. The temperature of the quilt itself changes slowly. The user will feel that the quilt temperature is low for a long time after covering the quilt, which causes the body to feel cold. In addition, the temperature of the ordinary quilt itself cannot be adjusted in real time according to the changes in room temperature and body temperature, and the comfort level is poor. Summary of the invention

[0004] Based on this, the present invention provides a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based temperature-regulating fiber layer, so as to achieve rapid warming when falling asleep, and adjust the temperature to a comfortable sleeping temperature in real time based on changes in room temperature and body temperature, thereby improving the comfort during sleep.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based thermoregulating fiber layer, comprising an outer layer fabric and a core layer fabric, wherein the core layer fabric is arranged inside the outer layer fabric; the core layer fabric comprises an upper thermoregulating layer, a thermostorage layer and a lower thermoregulating layer, wherein the thermostorage layer is arranged in the middle of the core layer fabric, and the upper thermoregulating layer and the lower thermoregulating layer respectively cover the upper and lower surfaces of the thermostorage layer, and the upper thermoregulating layer, the thermostorage layer and the lower thermoregulating layer are stacked to form a sandwich structure; the thermostorage layer is configured to efficiently absorb heat from the surrounding air, and the upper thermoregulating layer and the lower thermoregulating layer are configured to adjust the temperature in real time based on changes in room temperature and body temperature.

[0006] Furthermore, the upper temperature regulating layer / lower temperature regulating layer includes a polyester fiber layer and a bio-based temperature regulating fiber layer, the polyester fiber layer is arranged close to the center of the core layer fabric, and the bio-based temperature regulating fiber layer is arranged close to the surface of the core layer fabric, and the bio-based temperature regulating fiber of the upper temperature regulating layer / lower temperature regulating layer is configured to automatically absorb heat, release heat when encountering cold, dynamically adjust the temperature and maintain it in the range of 28°C to 32°C.

[0007] Furthermore, the upper temperature regulating layer and the lower temperature regulating layer are medium-low density woven structures, and the outer fabric is woven with ultra-fine, antibacterial fibers at a high density to achieve the functional effects of rapid heating and heat preservation, softness and comfort.

[0008] Furthermore, the temperature storage layer includes far-infrared fibers, which are configured to emit far-infrared rays with a wavelength of 4-14 μm under normal human body temperature. The far-infrared rays of this wavelength match the far-infrared radiation wavelength of the human body, thereby improving the comfort of use.

[0009] Furthermore, a honeycomb grid woven with polyester fibers is provided in the center of the temperature storage layer and penetrates along the thickness direction, the far-infrared fibers are filled in the honeycomb grid, and the upper temperature regulating layer and the lower temperature regulating layer are bonded to the top and bottom of the honeycomb grid structure.

[0010] Furthermore, a hot melt adhesive layer is provided between the temperature storage layer and the upper temperature regulating layer / the lower temperature regulating layer. The first surface of the hot melt adhesive layer is bonded to the temperature storage layer, and the second surface is bonded to the upper temperature regulating layer / the lower temperature regulating layer. The bonding is performed by hot melting, which is convenient for industrialization, and the bonding is firm and durable.

[0011] Furthermore, the far-infrared fibers are fiber bundles extending along the thickness of the honeycomb grid, the fiber cross-section of the far-infrared fiber layer is obtained by physical cutting, and the hot-melt adhesive layers located on the upper and lower surfaces of the honeycomb grid are respectively bonded to the fiber cross-sections at both ends of the fiber bundle.

[0012] Furthermore, the upper temperature regulating layer / lower temperature regulating layer is provided with external ventilation holes in the part opposite to the honeycomb grid space, and / or the hot melt adhesive layer is provided with internal ventilation holes in the part opposite to the honeycomb grid space, so as to realize the functions of rapid temperature regulation, transparent and comfortable.

[0013] Furthermore, the edges of the outer fabric and the core fabric are connected by hot-melt bonding edges: the surfaces of the temperature storage layer are respectively provided with groove structures extending along the edges, and the surfaces of the upper temperature regulating layer / lower temperature regulating layer are respectively provided with protruding structures extending along the edges, the groove structures and the protruding structures are respectively arranged in an embedded manner, and the side walls of the groove structures and the protruding structures are connected by a hot-melt bonding layer.

[0014] Furthermore, the core layer fabric weighs 100 parts, including 70 parts by weight of polyester fiber and 30 parts by weight of regenerated cellulose fiber, the 70 parts by weight of polyester fiber include 40 parts by weight of far-infrared fiber, and is configured as follows: the upper temperature regulating layer includes 15 parts by weight of bio-based temperature regulating fiber and 5 parts by weight of polyester fiber; the temperature storage layer includes 40 parts by weight of far-infrared fiber and 20 parts by weight of polyester fiber; the lower temperature regulating layer includes 15 parts by weight of bio-based temperature regulating fiber and 5 parts by weight of polyester fiber.

[0015] Compared with the thermal insulation structure of common quilts in the prior art, the thermal insulation structure provided by the present invention, which is a bio-based thermoregulating fiber layer filled with a far-infrared fiber layer, has the following technical advantages at least:

[0016] 1. The thermal insulation structure is provided with an outer fabric and a core fabric. The upper temperature regulating layer and the lower temperature regulating layer of the core fabric are respectively covered on the upper and lower surfaces of the temperature storage layer and are stacked to form a sandwich structure. The temperature storage layer efficiently absorbs the surrounding heat to achieve rapid temperature rise, and efficiently absorbs the heat in the surrounding air to form a "warmth storage pool", which can achieve rapid temperature rise when falling asleep, avoiding the feeling of low temperature and coldness in the initial use. The upper temperature regulating layer and the lower temperature regulating layer adjust the temperature in real time based on the room temperature and the body temperature changes, so as to achieve flexible temperature adjustment during use and adapt to the temperature changes in the outside world, and adjust the temperature to a comfortable sleeping temperature in real time, avoiding being woken up by cold / heat during deep sleep, and improving the comfort of use;

[0017] 2. The polyester fiber in the thermal storage layer is arranged as a honeycomb grid that runs through the thickness direction, and the upper and lower surfaces are covered by the upper and lower thermal regulating layers respectively, forming a honeycomb space arranged in an array. The far-infrared fiber is arranged in the honeycomb grid in the form of fiber bundles extending along the thickness. Combined with the physical characteristics of heat absorption and temperature rise, it can achieve rapid absorption and temperature rise of the external temperature, improve the elasticity and air permeability of the entire core fabric, and achieve the touch and temperature rise and heat preservation effect during use;

[0018] 3. The outer fabric is woven with ultra-fine, antibacterial fibers at high density, and the upper and lower temperature regulating layers are woven with medium and low density. Combined with the structure of far-infrared fiber bundles in the honeycomb grid in the above-mentioned temperature storage layer, the entire thermal insulation structure has moderate hardness, smooth ventilation, and is hygienic and healthy.

[0019] 4. The core layer fabric comprises 70% by weight of polyester fiber and 30% by weight of regenerated cellulose fiber, wherein the polyester fiber portion is far-infrared fiber, which is convenient for material selection during the production process. The outer layer fabric and the core layer fabric are stacked, and the temperature storage layer, the upper temperature regulating layer and the lower temperature regulating layer of the core layer fabric are connected by a hot-melt adhesive layer to form a sandwich structure. The structure is simple and suitable for industrial mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1It is a three-dimensional schematic diagram of a thermal insulation structure in which a far-infrared fiber layer is filled in a provided bio-based temperature regulating fiber layer;

[0022] Figure 2 is a top view of a thermal insulation structure in which a far-infrared fiber layer is filled in a provided bio-based temperature regulating fiber layer;

[0023] Figure 3 It is a side view of a top view of a thermal insulation structure in which a far-infrared fiber layer is filled in a provided bio-based temperature regulating fiber layer;

[0024] Figure 4 It is a three-dimensional view of the decomposed state of the thermal insulation structure of the provided bio-based thermoregulating fiber layer filled with a far-infrared fiber layer;

[0025] Figure 5 A partial schematic diagram of a thermal insulation structure provided in which a far-infrared fiber layer is filled in a bio-based temperature regulating fiber layer;

[0026] Figure 6 is a side view of a decomposed state of a thermal insulation structure in which a far-infrared fiber layer is filled in a provided bio-based thermoregulating fiber layer;

[0027] Figure 7 It is a schematic diagram of the structure of the hot-melt bonding edge of the thermal insulation structure of the provided bio-based temperature regulating fiber layer filled with a far-infrared fiber layer;

[0028] Figure 8 It is a schematic diagram of the decomposed structure of the hot-melt bonding edge of the thermal insulation structure of the provided bio-based temperature regulating fiber layer filled with a far-infrared fiber layer.

[0029] Description of the accompanying drawings:

[0030] 1- Outer fabric;

[0031] 2-core fabric, 21-upper temperature regulating layer, 22-lower temperature regulating layer, 23-temperature storage layer, 231-honeycomb grid, 232-fiber bundle, 24-hot melt adhesive layer;

[0032] 3-hot-melt bonding edge, 31-groove structure, 32-convex structure.

[0033] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0034] At present, ordinary quilts are made of front fabric and back fabric, and the quilt core material is filled between the front fabric and the back fabric. The quilt core material generally adopts a flocculent structure of cotton, rayon and other materials. In cold seasons, ordinary quilts only play a role of heat preservation after covering the human body, and their own temperature changes slowly. After covering the quilt for a long time, the user will feel that the quilt temperature is low, which causes the body to feel cold. In addition, the temperature of ordinary quilts cannot be adjusted in real time according to the changes in room temperature and body temperature, and the comfort level is poor.

[0035] To this end, the present invention provides a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based thermoregulating fiber layer, comprising an outer fabric and a core fabric, wherein the core fabric comprises an upper thermoregulating layer, a thermostorage layer and a lower thermoregulating layer, wherein the thermostorage layer is arranged in the middle of the core fabric, and the upper thermoregulating layer and the lower thermoregulating layer respectively cover the upper and lower surfaces of the thermostorage layer, and the upper thermoregulating layer, the thermostorage layer and the lower thermoregulating layer are stacked to form a sandwich structure; the thermostorage layer is configured to efficiently absorb heat from the surrounding air, and the upper thermoregulating layer and the lower thermoregulating layer are configured to adjust the temperature in real time based on changes in room temperature and body temperature.

[0036] The "sandwich" temperature control structure is adopted, and the middle layer is filled with far-infrared fibers, which efficiently absorb the heat in the surrounding air to form a "warmth pool" to achieve rapid temperature rise when falling asleep. The upper and lower layers are filled with bio-based temperature-regulating fibers. Based on the changes in room temperature and body temperature, it is a "temperature-regulating remote control" hidden in the thermal structure, which adjusts the temperature to a comfortable sleeping temperature in real time to avoid being woken up by cold / heat during deep sleep. It can achieve rapid temperature rise when falling asleep, and adjust the temperature to a comfortable sleeping temperature in real time, improving the comfort during sleep.

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Embodiment 1:

[0039] like Figures 1 to 4As shown, the present invention provides a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based thermostatic fiber layer, comprising an outer fabric 1 and a core fabric 2, wherein the core fabric 2 is arranged inside the outer fabric 1; the core fabric 2 comprises an upper thermostatic layer 21, a thermostatic storage layer 23 and a lower thermostatic layer 22, wherein the thermostatic storage layer 23 is arranged in the middle of the core fabric 2, and the upper thermostatic layer 21 and the lower thermostatic layer 22 respectively cover the upper and lower surfaces of the thermostatic storage layer 23, and the upper thermostatic layer 21, the thermostatic storage layer 23 and the lower thermostatic layer 22 are superimposed to form a sandwich structure; the thermostatic storage layer 23 is configured to efficiently absorb heat from the surrounding air, and the upper thermostatic layer 21 and the lower thermostatic layer 22 are configured to adjust the temperature in real time based on changes in room temperature and body temperature.

[0040] Based on the thermal insulation structure provided by the present invention, the upper temperature regulating layer 21 and the lower temperature regulating layer 22 of the core fabric 2 are respectively covered on the upper and lower surfaces of the thermal storage layer 23 and stacked to form a sandwich structure. During use, the user covers the thermal insulation structure on the body to sleep, and the thermal storage layer 23 efficiently absorbs the surrounding heat to achieve rapid temperature rise to form a "warmth storage pool", which achieves rapid temperature rise when falling asleep, avoiding the feeling of low temperature and coldness at the beginning of falling asleep. During sleeping, the upper temperature regulating layer 21 and the lower temperature regulating layer 22 adjust the temperature in real time based on the room temperature and body temperature changes, which are "temperature regulating remote controls" hidden in the thermal insulation structure, forming a flexible temperature adjustment during use and adapting to external temperature changes, thereby improving the comfort of use.

[0041] Embodiment 2:

[0042] like Figure 4 , Figure 5 and Figure 6 As shown, on the basis of the first embodiment, the upper temperature regulating layer 21, the lower temperature regulating layer 22 and the temperature storage layer 23 are optimized to realize their respective functions.

[0043] Among them, the design of the upper temperature regulating layer 21 and the lower temperature regulating layer 22 is as follows: in order to achieve the "temperature regulating remote control" function of the upper temperature regulating layer 21 and the lower temperature regulating layer 22, the upper temperature regulating layer 21 and the lower temperature regulating layer 22 use fiber materials that are easy to sense the external temperature and adjust the temperature.

[0044] In some preferred embodiments, the upper temperature regulating layer 21 / lower temperature regulating layer 22 includes a polyester fiber layer and a bio-based temperature regulating fiber layer, the polyester fiber layer is arranged near the center of the core fabric 2, and the bio-based temperature regulating fiber layer is arranged near the surface of the core fabric 2, and the bio-based temperature regulating fiber of the upper temperature regulating layer 21 / lower temperature regulating layer 22 is configured to automatically absorb heat, release heat when encountering cold, dynamically adjust the temperature and maintain it in the range of 28°C to 32°C. The bio-based temperature regulating fiber constant temperature fiber used adopts the third-generation bio-based temperature control technology, which is a "temperature regulating remote control" hidden in the quilt, with a constant temperature of 28°C-32°C for comfortable sleeping, neither too hot nor too cold.

[0045] Regenerated cellulose fiber is made from natural cellulose such as cotton, linen, and bamboo. It does not change its chemical structure, but only changes the physical structure of natural cellulose, thereby producing regenerated cellulose fiber with better performance. Compared with traditional PCM phase change materials, the third-generation bio-based thermoregulatory fiber uses reproducible fabrics as raw materials, has obtained relevant bio-based certification, and is a naturally degradable, environmentally friendly, and skin-friendly high-quality textile raw material.

[0046] When the sleeping temperature rises, the thermostatic fiber will automatically absorb heat, and release heat when it gets cold, dynamically adjusting the temperature and maintaining it in the golden sleeping temperature range of 28°C to 32°C. The design of the thermal storage layer is as follows: Based on the first embodiment, in order to realize the "warm pool" function of the thermal storage layer, the thermal storage layer 23 uses fiber materials with good heat absorption and fast temperature rise, so as to be able to absorb heat and quickly heat up to a comfortable temperature.

[0047] The heat storage layer 23 includes far infrared fibers, which are configured to emit far infrared rays with a wavelength of 4-14 μm at normal human body temperature, and the far infrared rays of this wavelength match the far infrared radiation wavelength of the human body. During use, the far infrared fibers absorb external heat and release it in the form of potential (far infrared form), thereby achieving the functions of warmth preservation and health care, for example, causing the temperature to rise, stimulating the thermal receptors in the skin, making the blood vessels smooth and relax, dilating the blood vessels, accelerating blood circulation, especially microcirculation, increasing tissue nutrition, improving oxygen supply, strengthening cell regeneration ability, accelerating the excretion of harmful substances, and reducing chemical and mechanical stimulation of nerve endings.

[0048] The far-infrared fiber used adopts infrared energy temperature control technology, which absorbs heat instantly and heats up quickly to keep your feet warm; it stores sufficient energy to continuously lock in heat to keep the bed warm; the far-infrared fiber used is different from the traditional one that adds far-infrared ceramic powder in a chemical way to give the textile raw materials far-infrared function. The new technology uses physical methods to change the cross-section of the fiber, allowing the fabric to absorb heat and store warmth, without any chemical residue, and it still has a good warming effect after long washing.

[0049] The far infrared rays emitted by the far infrared fiber can also penetrate the surface of the skin, directly reach the muscles and blood vessels, and promote blood circulation. Its warming effect can also relieve muscle tension and cramps, reduce pain caused by muscle stiffness or strain, and relieve fatigue. The upper temperature regulating layer 21 and the lower temperature regulating layer 22 are medium-low density woven structures, and the outer fabric 1 is woven with ultrafine and antibacterial fibers at a high density. The outer fabric is woven with ultrafine and antibacterial fibers at a high density, and the upper and lower temperature regulating layers are woven with medium-low density. Combined with the structure of the far infrared fiber bundles contained in the honeycomb grid in the thermal storage layer, the entire thermal insulation structure is moderately soft and hard, ventilated and comfortable, and hygienic and healthy. During the implementation process, the outer fabric adopts 7A antibacterial technology to effectively inhibit the growth of dust mites and bacteria. After 150 times of washing and testing, it still has a good antibacterial effect.

[0050] Embodiment three:

[0051] like Figure 1 , Figure 4 and Figure 5 As shown, the center of the temperature storage layer 23 is provided with a honeycomb grid 231 woven with polyester fibers and penetrating along the thickness direction, the far infrared fibers are filled in the honeycomb grid 231, and the upper temperature regulating layer 21 and the lower temperature regulating layer 22 are bonded to the top and bottom of the honeycomb grid 231 structure. A hot melt adhesive layer 24 is provided between the temperature storage layer 23 and the upper temperature regulating layer 21 / the lower temperature regulating layer 22, and the first surface of the hot melt adhesive layer 24 is bonded to the temperature storage layer 23, and the second surface is bonded to the upper temperature regulating layer 21 / the lower temperature regulating layer 22.

[0052] Polyester fiber has excellent wrinkle resistance and shape retention. It is not easy to wrinkle during use and can maintain the original shape of the honeycomb grid structure. In addition, polyester fiber has high strength and elastic recovery ability, making the woven honeycomb grid strong and durable, and can quickly return to its original shape. Polyester fiber is also wear-resistant, which makes the honeycomb structure have good durability.

[0053] The far infrared fiber is a fiber bundle 232 extending along the thickness of the honeycomb grid 231. The fiber cross section of the far infrared fiber layer is obtained by physical cutting. The hot melt adhesive layer 24 located on the upper and lower surfaces of the honeycomb grid 231 is respectively bonded to the fiber cross sections at both ends of the fiber bundle 232. The far infrared fiber has the function of absorbing and emitting far infrared rays at room temperature and is an active and efficient thermal insulation material.

[0054] The upper temperature regulating layer 21 / lower temperature regulating layer 22 is provided with external ventilation holes at the parts opposite to each other in the space of the honeycomb grid 231, and / or the hot melt adhesive layer 24 is provided with internal ventilation holes at the parts opposite to each other in the space of the honeycomb grid 231. The provision of external ventilation holes and internal ventilation holes increases the permeability between the internal space of the honeycomb grid and the outside world, so that the far infrared fibers in the honeycomb grid can absorb heat quickly and efficiently, and can also release heat quickly and efficiently, thereby realizing the rapid heating of the thermal insulation structure.

[0055] The polyester fibers in the temperature storage layer 23 are arranged as a honeycomb grid 231 that penetrates along the thickness direction, and the upper and lower surfaces are respectively covered by the upper temperature regulating layer 21 and the lower temperature regulating layer 22 to form a honeycomb space arranged in an array. The far-infrared fibers are arranged in the honeycomb grid 231 in the form of fiber bundles extending along the thickness. Combined with the physical properties of heat absorption and temperature rise, it can achieve rapid absorption and temperature rise of the external temperature, thereby improving the elasticity and air permeability of the entire core layer fabric, achieving the tactile feel and heating and heat preservation effects during use.

[0056] like Figure 7 and Figure 8 As shown, in some preferred embodiments, the edges of the outer fabric 1 and the core fabric 2 are connected by a hot melt adhesive edge 3: the surface of the temperature storage layer 23 is respectively provided with a groove structure 31 extending along the edge, and the surface of the upper temperature regulating layer 21 / lower temperature regulating layer 22 is respectively provided with a convex structure 32 extending along the edge, and the groove structure 31 and the convex structure 32 are embedded in each other, and the side walls of the groove structure 31 and the convex structure 32 are connected by a hot melt adhesive layer 24. Through the above-mentioned hot melt adhesive edge 3, the upper temperature regulating layer 21, the lower temperature regulating layer 22 and the temperature storage layer 23 of the temperature storage layer are firmly connected and the shape is maintained. The above-mentioned hot melt adhesive edge 3 structure is easy to process and manufacture in the production process, and can be realized by extrusion molding and textile molding, and then the hot melt adhesive layer is heated to reach the bonding temperature, and then cooled and set.

[0057] The provided heat-insulating structure is produced by processing and producing the layers of the core fabric of the surface fabric separately during the production process, and then superimposed and bonded, and the edges are hot-pressed and bonded. The honeycomb grid structure is a common structure in fabrics and has a mature weaving process. During the implementation process, the hot-melt adhesive layer 24 contains hot-melt fibers. The hot-melt fibers are polymer fibers that can be softened and bonded together by heating at a certain temperature. The melting point of the hot-melt fibers varies depending on the type of polymer and the molecular structure, and is usually between 100°C and 200°C. For example, the melting point of polyamide hot-melt fibers is generally around 160°C, while the melting point of polyethylene hot-melt fibers is around 130°C. The bonding of the fibers can be completed by rapidly cooling down after heating, so that the hot-melt fibers have better adhesion during the bonding process.

[0058] In a preferred embodiment, the core layer fabric 2 weighs 100 parts, including 70 parts of polyester fibers and 30 parts of regenerated cellulose fibers, the 70 parts of polyester fibers include 40 parts of far-infrared fibers, and is configured as follows: the upper temperature regulating layer 21 includes 15 parts of bio-based temperature regulating fibers and 5 parts of polyester fibers; the temperature storage layer 23 includes 40 parts of far-infrared fibers and 20 parts of polyester fibers; the lower temperature regulating layer 22 includes 15 parts of bio-based temperature regulating fibers and 5 parts of polyester fibers.

[0059] In the specific implementation process, the fabric is made of 100% polyester fiber and ultra-fine (denier) fiber, which meets the 7A antibacterial standard, effectively inhibits the growth of dust mites and bacteria, and still has good antibacterial effect after 150 times of washing test; it does not contain harmful substances such as formaldehyde, can directly contact the delicate skin of infants and young children, comfortable and skin-friendly; ultra-fine (denier) fiber fabric is soft and breathable, and it is strongly recommended to cover it with a close-fitting cover, which has a better sleeping feeling and can be washed and machine washed, making daily washing easy and worry-free. The core fabric is made of 30% regenerated cellulose fiber (30% bio-based thermostatic fiber) and 70% polyester fiber (including 40% far-infrared fiber). Among them, the upper layer is 15% bio-based thermostatic fiber and 5% polyester fiber; the middle layer is 40% far-infrared fiber and 20% polyester fiber; the lower layer is 15% bio-based thermostatic fiber and 5% polyester fiber.

[0060] Based on the above embodiments, the present invention provides a thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based thermostatic fiber layer, which mainly includes an outer layer of fabric and an internally arranged bio-based thermostatic fiber layer and a far-infrared fiber layer. Among them, the bio-based thermostatic fiber layer can intelligently adjust the temperature according to the change of human body temperature to ensure that the internal environment is neither too hot nor too cold; and the far-infrared fiber layer emits far-infrared rays with a wavelength of 4-14 μm under normal human body temperature. The far-infrared rays of this wavelength match the far-infrared radiation wavelength of the human body and are easily absorbed by the human body, thereby promoting human blood vessel dilation, accelerating blood circulation, improving oxygen supply, strengthening the regeneration ability of cells, accelerating the excretion of harmful substances, and gradually playing a health care role for the human body. The two-layer structure is tightly fitted through a special process, which ensures effective heat management and comfort, while also enhancing the durability of the product and its recovery ability after washing. In addition, the materials selected by the present invention are all renewable or degradable materials to reduce the impact on the environment. The product is multi-purpose, such as body-sensing quilts, children's sleeping bags, and outdoor sleeping bags, with a wide range of application scenarios.

[0061] Moreover, the above-mentioned material combination facilitates material selection during the production process. The outer fabric 1 and the core fabric 2 are stacked, and the temperature storage layer 23, the upper temperature regulating layer 21 and the lower temperature regulating layer 22 of the core fabric are connected by a hot-melt adhesive layer 24 to form a sandwich structure. The structure is simple and suitable for industrial mass production.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal insulation structure in which a far-infrared fiber layer is filled in a bio-based temperature regulating fiber layer, characterized in that: It comprises an outer fabric (1) and a core fabric (2), wherein the core fabric (2) is arranged inside the outer fabric (1); The core fabric (2) comprises an upper temperature regulating layer (21), a temperature storage layer (23) and a lower temperature regulating layer (22); the temperature storage layer (23) is arranged in the middle of the core fabric (2); the upper temperature regulating layer (21) and the lower temperature regulating layer (22) respectively cover the upper and lower surfaces of the temperature storage layer (23); the upper temperature regulating layer (21), the temperature storage layer (23) and the lower temperature regulating layer (22) are stacked to form a sandwich structure; The temperature storage layer (23) is configured to efficiently absorb heat from the surrounding air, and the upper temperature adjustment layer (21) and the lower temperature adjustment layer (22) are configured to adjust the temperature in real time based on changes in room temperature and perceived temperature.

2. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1, characterized in that: The upper temperature regulating layer (21) / lower temperature regulating layer (22) comprises a polyester fiber layer and a bio-based temperature regulating fiber layer, wherein the polyester fiber layer is arranged near the center of the core layer fabric (2), and the bio-based temperature regulating fiber layer is arranged near the surface of the core layer fabric (2), and the bio-based temperature regulating fiber of the upper temperature regulating layer (21) / lower temperature regulating layer (22) is configured to automatically absorb heat, release heat when encountering cold, and dynamically regulate the temperature and maintain it in the range of 28°C to 32°C.

3. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1, characterized in that: The upper temperature regulating layer (21) and the lower temperature regulating layer (22) are of medium-low density woven structure, and the outer fabric (1) is woven with ultra-fine, antibacterial fibers at a high density.

4. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1, characterized in that: The temperature storage layer (23) comprises far infrared fibers, which are configured to emit far infrared rays with a wavelength of 4-14 μm under normal human body temperature, and the far infrared rays with this wavelength match the far infrared radiation wavelength of the human body.

5. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1 or 4, characterized in that: A honeycomb grid (231) made of polyester fibers and penetrating in the thickness direction is provided at the center of the temperature storage layer (23); the far-infrared fibers are filled in the honeycomb grid (231); and the upper temperature regulating layer (21) and the lower temperature regulating layer (22) are bonded to the top and bottom of the honeycomb grid (231) structure.

6. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 5, characterized in that: A hot melt adhesive layer (24) is provided between the temperature storage layer (23) and the upper temperature regulating layer (21) / the lower temperature regulating layer (22); a first surface of the hot melt adhesive layer (24) is bonded to the temperature storage layer (23), and a second surface is bonded to the upper temperature regulating layer (21) / the lower temperature regulating layer (22).

7. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 6, characterized in that: The far-infrared fibers are fiber bundles (232) extending along the thickness of the honeycomb grid (231); the fiber cross-sections of the far-infrared fiber layer are obtained by cutting using a physical method; and the hot-melt adhesive layers (24) located on the upper and lower surfaces of the honeycomb grid (231) are respectively bonded to the fiber cross-sections at both ends of the fiber bundle (232).

8. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1, characterized in that: The upper temperature regulating layer (21) / lower temperature regulating layer (22) is provided with external ventilation holes in the parts that are located in opposite spaces of the honeycomb grid (231), and / or the hot melt adhesive layer (24) is provided with internal ventilation holes in the parts that are located in opposite spaces of the honeycomb grid (231).

9. The thermal insulation structure of a bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to any one of claims 6 to 8, characterized in that: The edges of the outer fabric (1) and the core fabric (2) are connected by a hot-melt adhesive edge (3); the surface of the temperature storage layer (23) is respectively provided with a groove structure (31) extending along the edge; the surface of the upper temperature regulating layer (21) / lower temperature regulating layer (22) is respectively provided with a protrusion structure (32) extending along the edge; the groove structure (31) and the protrusion structure (32) are arranged in a chimeric arrangement; and the side walls of the groove structure (31) and the protrusion structure (32) are connected by a hot-melt adhesive layer (24).

10. The thermal insulation structure of the bio-based temperature regulating fiber layer filled with a far-infrared fiber layer according to claim 1, characterized in that: The core fabric (2) weighs 100 parts, including 70 parts of polyester fibers and 30 parts of regenerated cellulose fibers, wherein the 70 parts of polyester fibers include 40 parts of far-infrared fibers, and is configured as follows: the upper temperature regulating layer (21) includes 15 parts of bio-based temperature regulating fibers and 5 parts of polyester fibers; the temperature storage layer (23) includes 40 parts of far-infrared fibers and 20 parts of polyester fibers; and the lower temperature regulating layer (22) includes 15 parts of bio-based temperature regulating fibers and 5 parts of polyester fibers.

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