Breathable heat-preservation hollow fabric

Abstract

The invention discloses a breathable heat-preservation hollow fabric which comprises a first surface layer, a second surface layer and a porous layer, the first surface layer and the second surface layer are oppositely arranged, and the porous layer is clamped between the first surface layer and the second surface layer; the direction from the first surface layer to the second surface layer is a vertical direction, and the direction parallel to the first surface layer is a horizontal direction; the porous layer comprises a plurality of first fiber areas and a plurality of second fiber areas, the first fiber areas and the second fiber areas are arranged at intervals in the horizontal direction, the first fiber areas comprise a plurality of first fibers, the first fibers are arranged in the vertical direction, the second fiber areas comprise a plurality of second fibers, and the second fibers are arranged in the vertical direction. The second fibers are arranged in the horizontal direction, and the fiber density in the first fiber area is larger than that in the second fiber area; therefore, the effects of lightness, thinness, heat preservation and breathability of the fabric are achieved at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a breathable and heat-insulating hollow fabric. Background Art

[0002] In the development of modern fabric technology, breathability and thermal insulation have always been important considerations in fabric design and manufacturing. When pursuing thermal insulation performance, many traditional fabrics often achieve this by increasing the thickness and density of the fabric, which results in poor breathability of the fabric, and the wearer is prone to feeling stuffy and uncomfortable in winter. On the contrary, fabrics with good breathability, such as cotton fabrics, although they perform well in summer, have poor thermal insulation effects in winter and cannot meet the warmth needs in cold environments. There are many irreconcilable contradictions in the simultaneous realization of the breathability and thermal insulation of fabrics.

[0003] Therefore, it is particularly important to develop a fabric that can maintain breathability while improving thermal insulation performance. Summary of the invention

[0004] In view of this, the present invention provides a breathable and heat-insulating hollow fabric, which is used to solve the problem that the fabric in the prior art cannot meet the requirements of both breathability and heat insulation.

[0005] To achieve one or part or all of the above purposes or other purposes, the present invention provides a breathable and heat-insulating hollow fabric, comprising a first surface layer, a second surface layer and a porous layer, wherein the first surface layer and the second surface layer are arranged opposite to each other, and the porous layer is sandwiched between the first surface layer and the second surface layer; the direction from the first surface layer to the second surface layer is a vertical direction, and the direction parallel to the first surface layer is a horizontal direction;

[0006] The porous layer includes a plurality of first fiber regions and a plurality of second fiber regions. In the horizontal direction, the first fiber regions and the second fiber regions are arranged at intervals. The first fiber region includes a plurality of first fibers, and the first fibers are arranged along the vertical direction. The second fiber region includes a plurality of second fibers, and the second fibers are arranged along the horizontal direction. The fiber density in the first fiber region is greater than the fiber density in the second fiber region.

[0007] Furthermore, the fiber density in the first fiber area is greater than or equal to 100 fibers / cm 2 .

[0008] Furthermore, the fiber density in the second fiber zone is less than or equal to 50 fibers / cm 2 .

[0009] Furthermore, the thickness of the first surface layer is less than or equal to 1 mm, and the thickness of the second surface layer is less than or equal to 1 mm.

[0010] Furthermore, the width of the first fiber region ranges from 1 mm to 2 mm.

[0011] Furthermore, the width of the second fiber region ranges from 1 mm to 2 mm.

[0012] Furthermore, the projection of the first fiber area on the first surface layer is one of a straight line, a wavy line, and a broken line.

[0013] Furthermore, one end of the first fiber is connected to the first surface layer, and the other end of the first fiber is connected to the second surface layer.

[0014] Further, one end of the second fiber is connected to an outer first fiber of a first fiber region adjacent to the one end of the second fiber, and the other end of the second fiber is connected to an outer first fiber of the first fiber region adjacent to the other end of the second fiber.

[0015] Furthermore, the fabric count of the first fabric is greater than the fabric count of the second fabric.

[0016] Implementing the embodiments of the present invention will have the following beneficial effects:

[0017] The present invention provides a breathable and heat-insulating hollow fabric, comprising a first surface layer, a second surface layer and a porous layer, wherein the first surface layer and the second surface layer are arranged opposite to each other, and the porous layer is sandwiched between the first surface layer and the second surface layer; the direction from the first surface layer to the second surface layer is the vertical direction, and the direction parallel to the first surface layer is the horizontal direction; the porous layer comprises a plurality of first fiber regions and a plurality of second fiber regions, and in the horizontal direction, the first fiber region and the second fiber region are arranged at intervals, the first fiber region comprises a plurality of first fibers, and the first fibers are arranged along the vertical direction, the second fiber region comprises a plurality of second fibers, and the second fibers are arranged along the horizontal direction, and the fiber density in the first fiber region is greater than the fiber density in the second fiber region. Through the above structural design, the fabric is light, thin, heat-insulating and breathable at the same time, and has a good market prospect and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 work.

[0019] in:

[0020] Figure 1A schematic diagram of the cross-sectional structure of a breathable and heat-insulating hollow fabric in one embodiment;

[0021] Figure 2 A schematic plan view of a porous layer of a breathable and heat-insulating hollow fabric in one embodiment;

[0022] Figure 3 Schematic diagram of a plan view of a porous layer of a breathable and heat-insulating hollow fabric in one embodiment.

[0023] Description of the accompanying drawings:

[0024] 1: first surface layer; 2: second surface layer; 3: porous layer; 31: first fiber region; 311: first fibers; 32: second fiber region; 321: second fibers. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 3 , an embodiment of the present invention discloses a breathable and heat-insulating hollow fabric, comprising a first surface layer 1, a second surface layer 2 and a porous layer 3, wherein the first surface layer 1 and the second surface layer 2 are arranged opposite to each other, and the porous layer 3 is sandwiched between the first surface layer 1 and the second surface layer 2; the direction from the first surface layer 1 to the second surface layer 2 is a vertical direction, and the direction parallel to the first surface layer 1 is a horizontal direction;

[0029] The porous layer 3 includes a plurality of first fiber zones 31 and a plurality of second fiber zones 32. In the horizontal direction, the first fiber zones 31 and the second fiber zones 32 are arranged at intervals. The first fiber zone 31 includes a plurality of first fibers 311, and the first fibers 311 are arranged along the vertical direction. The second fiber zone 32 includes a plurality of second fibers 321, and the second fibers 321 are arranged along the horizontal direction. The fiber density in the first fiber zone 31 is greater than the fiber density in the second fiber zone 32.

[0030] The breathable and heat-insulating hollow fabric provided in this embodiment achieves both breathable and heat-insulating effects.

[0031] The first surface layer 1 is the outer layer of the fabric, which is closer to the external environment. Preferably, it is made of a fiber material with high strength, wear resistance and / or certain waterproof function, such as polyester fiber or nylon fiber. Its surface can be specially treated to enhance the tear strength and UV resistance of the fabric. The second surface layer 2 is the inner layer of the fabric, which is closer to the wearer's body. Preferably, it is made of a soft, skin-friendly and breathable fiber material, such as cotton fiber or bamboo fiber, to provide a comfortable wearing experience.

[0032] The porous layer 3 is composed of a plurality of first fiber regions 31 and a plurality of second fiber regions 32 , which are arranged at intervals in the horizontal direction.

[0033] The first fiber area 31 includes a plurality of first fibers 311 arranged in a vertical direction (i.e., in the direction of the thickness of the fabric), and these first fibers 311 are closely arranged to form a high-density area. The plurality of first fibers 311 in the first fiber area 31 are closely arranged to form a tiny capillary structure between the first fibers 311. When people are exercising, the wet sweat produced by the body can be discharged from the second surface layer 2 along the capillary structure between the first fibers 311 in the first fiber area 31 to the first surface layer 1, and then discharged from the fabric, achieving a breathable effect.

[0034] The second fiber area 32 comprises a plurality of second fibers 321 arranged in the horizontal direction. The second fibers 321 are arranged relatively loosely to form a low-density area, which is conducive to air circulation inside the fabric and enhances air permeability. The transversely arranged second fibers 321 in the second fiber area 32 connect the two rows of first fiber areas 31. The fiber density of the second fiber area 32 is significantly lower than the fiber density in the first fiber area 31, thereby forming a uniformly distributed hollow structure in the fabric. The human body temperature of 36-37°C can be retained in the hollow structure for a long time, and the cold and humid air is isolated from the fabric, thereby controlling the temperature / humidity on the surface of the human skin and achieving the effect of temperature balancing and heat preservation.

[0035] The fiber density in the first fiber region 31 is significantly higher than that in the second fiber region 32, which not only optimizes the thermal insulation and breathability of the fabric, but also the first fiber region 31 can serve as a supporting structure to improve the overall strength and durability of the fabric.

[0036] The embodiment of the present invention provides a porous layer 3, and distributes a first fiber area 31 and a second fiber area 32 in the porous layer 3, so that the fabric can achieve efficient air circulation while ensuring a good thermal insulation effect, solving the problem that the air permeability and thermal insulation of traditional fabrics cannot be achieved at the same time. In addition, the high-strength fiber material of the first surface layer 1 and the high-density structure of the first fiber area 31 jointly improve the wear resistance and tear resistance of the fabric, and extend the service life. The soft skin-friendly material of the second surface layer 2, combined with the breathable design of the porous layer 3, provides the wearer with a dry and comfortable wearing experience.

[0037] Specifically, when fabric is produced, an exemplary production method may be adopted as follows:

[0038] Raw material preparation: Select and prepare the fiber materials required for the first surface layer 1, the second surface layer 2, and the first fiber 311 and the second fiber 321 materials for the porous layer 3; in some specific embodiments, the first fiber 311 and the second fiber 321 materials can be the same; in other specific embodiments, the first fiber 311 and the second fiber 321 materials can be different.

[0039] Arrangement of the porous layer 3: Using warp and weft interlacing or knitting technology, the first fiber 311 material is first arranged and fixed at intervals, and the second fiber 321 material is arranged between two rows of the first fiber 311 material. The porous layer 3 is subjected to a raising process from both end surfaces by an electrostatic raising process to form a porous layer 3 with a certain thickness.

[0040] Lamination: The two end surfaces of the woven porous layer 3 are placed between the first surface layer 1 and the second surface layer 2, and the three-layer structure is firmly combined together through heat pressing or bonding technology to form a complete fabric.

[0041] The fabrics are subjected to necessary post-processing, such as shaping, waterproofing, dyeing, etc., to meet the performance requirements and aesthetic needs of the final product.

[0042] The above is an exemplary processing technology, and the fabric of the present invention can also be produced by other processing and production methods in the prior art.

[0043] In a specific embodiment, the fiber density in the first fiber area 31 is greater than or equal to 100 fibers / cm 2 .

[0044] In this embodiment, a small capillary structure in the vertical direction is formed between the multiple first fibers 311 in the first fiber area 31, forming a capillary effect, so that sweat can be quickly discharged from the fabric along these gaps, keeping the wearer dry and comfortable. The first fiber 311 can be made of common chemical fiber materials such as polyester fiber and nylon fiber. The capillary structure can be achieved by the aforementioned electrostatic raising process. During the production process, by controlling the arrangement density and angle of the fibers, gaps of different sizes and shapes can be formed, thereby optimizing the performance of the capillary structure. The diameter range of the first fiber 311 can be set between a few microns and tens of microns to ensure that the fabric has sufficient strength while maintaining good softness and air permeability.

[0045] In a specific embodiment, the fiber density in the second fiber area 32 is less than or equal to 50 fibers / cm 2 .

[0046] In this specific embodiment, the fiber density in the second fiber area 32 is set to be less than or equal to 50 fibers / cm2, so as to form a hollow structure of the fabric to achieve a heat preservation effect.

[0047] The fiber arrangement of the second fiber area 32 needs to be relatively loose, ensuring that no more than 50 fibers are arranged in the horizontal direction per square centimeter, preferably no more than 30 fibers per square centimeter; more preferably, no more than 20 fibers per square centimeter. The two adjacent first fiber areas 31 can be connected stably. By setting a low-density second fiber area 32 to form a hollow structure, the fabric of this embodiment can have a good thermal insulation effect. In addition, the low-density fiber structure can also make the fabric lighter and softer, improving the comfort and freedom of wearing.

[0048] In a specific embodiment, the thickness of the first surface layer 1 is less than or equal to 1 mm, and the thickness of the second surface layer 2 is less than or equal to 1 mm.

[0049] In this embodiment, the thickness of the first surface layer 1 and the second surface layer 2 are both set to be less than or equal to 1 mm, so as to achieve the lightness and thinness of the fabric, and ensure the comfort and lightness of the fabric. In the prior art, it is difficult to achieve both heat preservation and breathability for fabrics of the above thickness, while the fabric of the present invention achieves the performance of both heat preservation and breathability of the thin fabric by arranging the above special porous layer 3 between two layers of very thin fabrics. The materials of the above first surface layer 1 and the second surface layer 2 can be selected from the prior art, and the appropriate material, thickness, etc. can be selected according to the requirements of the fabric. The present invention does not make any special limitation on this.

[0050] The thickness of the porous layer 3 is in the range of 0.5 to 2 mm, so that the thickness of the entire fabric can be controlled to be below 4 mm. For summer fabrics, the thickness of the first surface layer 1, the second surface layer 2 and the porous layer 3 can be further reduced, thereby reducing the overall thickness of the fabric. The above-mentioned minimum thickness limit of the porous layer 3 also provides a certain longitudinal path for the discharge of sweat, which facilitates the lateral diffusion of sweat while discharging sweat longitudinally, thereby achieving rapid discharge of local sweat through a larger area.

[0051] In a specific embodiment, the width of the first fiber region 31 is in the range of 1 mm to 2 mm.

[0052] In this embodiment, the width of the first fiber area 31 is not only helpful to control the fiber arrangement density, but also improves the flexibility and tear resistance of the material while ensuring the overall strength of the material. It can also ensure that there is a suitable sweat discharge area to achieve a good ventilation effect.

[0053] In a specific embodiment, the width of the second fiber region 32 is in the range of 1 mm to 2 mm.

[0054] In this embodiment, the width range of the second fiber area 32 can ensure the stability of the overall structure of the fabric, and at the same time, there is a suitable hollow heat preservation area to maintain the temperature of the human body. In addition, the width of the second fiber area 32 of the fabric can be further adjusted according to the season in which the fabric is suitable. For example, for summer fabrics, the width of the second fiber area 32 is increased, for example, set to 1.5mm to 2mm, so that there are more hollow areas and the fabric feels thinner. For winter fabrics, the width of the second fiber area 32 is reduced, for example, set to 1mm to 1.5mm, so as to reduce the proportion of the hollow area and increase the density of the fabric.

[0055] Reference Figure 2 and Figure 3 In a specific embodiment, the projection of the first fiber area 31 on the first surface layer 1 is one of a straight line, a wavy line, and a broken line.

[0056] In this embodiment, in order to enhance the structural diversity and functionality of the fabric, the projection of the first fiber region 31 on the first surface layer 1 can be designed as a straight line, a wavy line or a folded line, and the mechanical properties of the material can be optimized by changing the arrangement direction of the fibers. For example, for the wavy first fiber region 31 structural design, the wavy first fiber region 31 can absorb and disperse stress, thereby improving the flexibility and durability of the fabric.

[0057] The projections of the first fibers 311 and the second fibers 321 on the first surface layer 1 form an interlaced grid, and independent hollow areas are formed between adjacent second fibers 321 in the second fiber area 32. By adjusting the fiber density of the second fiber area 32 and the width of the second fiber area 32, the proportion of the hollow area can be adjusted to adaptively take into account and balance the performance requirements of the fabric in terms of heat preservation, breathability, lightness, etc.

[0058] In a specific embodiment, one end of the first fiber 311 is connected to the first surface layer 1 , and the other end of the first fiber 311 is connected to the second surface layer 2 .

[0059] In this embodiment, one end of the first fiber 311 is firmly connected to the first surface layer 1, and the other end is connected to the second surface layer 2. This connection method ensures the overall strength and durability of the fabric on the one hand, and on the other hand, ensures that a fiber capillary structure is formed between the second surface layer 2 and the first surface layer 1 in the thickness direction, so as to facilitate the rapid discharge of sweat, thereby helping the human body to maintain a constant temperature.

[0060] In a specific embodiment, one end of the second fiber 321 is connected to the outer first fiber 311 of the first fiber region 31 adjacent to the one end of the second fiber 321 , and the other end of the second fiber 321 is connected to the outer first fiber 311 of the first fiber region 31 adjacent to the other end of the second fiber 321 .

[0061] In this embodiment, one end of the second fiber 321 is connected to the outer first fiber 311 of the first fiber zone 31 adjacent to the end, and the other end is connected to the outer first fiber 311 of another first fiber zone 31 adjacent to the other end, thereby forming an interwoven network structure, which enhances the interaction between the fibers and the stability of the overall structure.

[0062] In a specific embodiment, the fabric count of the first fabric is greater than the fabric count of the second fabric.

[0063] In this embodiment, the first fabric can be, for example, a fabric with a count of 60 or more, and the second fabric can be, for example, a fabric with a count of 30 to 50, and the difference between the counts of the first fabric and the second fabric is at least 20% of the count of the second fabric. In this way, sweat can be quickly discharged from the second fabric, and because the count of the first fabric is greater than that of the second fabric, that is, the sweat discharge efficiency of the second fabric is higher than that of the first fabric in the same time, therefore, in addition to climbing along the capillaries between the first fibers 311 in the thickness direction of the fabric, the sweat will also diffuse along the second fibers 321 in the transverse direction (i.e., horizontal direction) of the fabric to the adjacent first fiber area 31, thereby facilitating the conduction of the wearer's local sweat to the whole body, thereby quickly reducing the local sweat volume, and avoiding the discomfort of the wearer caused by the fabric becoming wet due to the accumulation of local sweat.

[0064] The breathable and heat-insulating hollow fabric provided in the embodiment of the present invention achieves the lightness, heat preservation and breathability of the fabric through the above structural design, and has good market prospects and economic value.

[0065] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A breathable and heat-insulating hollow fabric, characterized in that: It comprises a first surface layer, a second surface layer and a porous layer, wherein the first surface layer and the second surface layer are arranged opposite to each other, and the porous layer is sandwiched between the first surface layer and the second surface layer; the direction from the first surface layer to the second surface layer is a vertical direction, and the direction parallel to the first surface layer is a horizontal direction; The porous layer includes a plurality of first fiber regions and a plurality of second fiber regions. In the horizontal direction, the first fiber regions and the second fiber regions are arranged at intervals. The first fiber region includes a plurality of first fibers, and the first fibers are arranged along the vertical direction. The second fiber region includes a plurality of second fibers, and the second fibers are arranged along the horizontal direction. The fiber density in the first fiber region is greater than the fiber density in the second fiber region.

2. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The fiber density in the first fiber area is greater than or equal to 100 fibers / cm 2 .

3. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The fiber density in the second fiber area is less than or equal to 50 fibers / cm 2 .

4. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The thickness of the first surface layer is less than or equal to 1 mm, and the thickness of the second surface layer is less than or equal to 1 mm.

5. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The width of the first fiber region is in the range of 1 mm to 2 mm.

6. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The width of the second fiber region is in the range of 1 mm to 2 mm.

7. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The projection of the first fiber area on the first surface layer is one of a straight line, a wavy line and a broken line.

8. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: One end of the first fiber is connected to the first surface layer, and the other end of the first fiber is connected to the second surface layer.

9. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: One end of the second fiber is connected to an outer first fiber of a first fiber region adjacent to the one end of the second fiber, and the other end of the second fiber is connected to an outer first fiber of the first fiber region adjacent to the other end of the second fiber.

10. The breathable and heat-insulating hollow fabric according to claim 1, characterized in that: The fabric count of the first fabric is greater than the fabric count of the second fabric.

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