Metallized breathable composite fabric

Abstract

To provide a metallized breathable composite fabric.SOLUTION: A fabric includes an inner layer, a metallized membrane disposed on the inner layer, and an outer layer disposed on the metallized membrane. The metallized membrane includes a base layer containing a polymer and a metal layer deposited on the first surface of the base layer. The inner layer is coupled to the metallized membrane via first point contacts, and the outer layer is coupled to the metallized membrane via second point contacts. This disclosure is generally related to fabrics for apparel, footwear, tents, and sleeping bags, and more specifically to metallized breathable composite fabrics for apparel, footwear, tents, and sleeping bags.SELECTED DRAWING: None

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a joint venture of U.S. Provisional Patent Application No. 119(e) filed on November 27, 2019. The benefit of patent application Ser. No. 62 / 941,555, the contents of which are incorporated herein in their entirety, is claimed. Can be enjoyed.

[0002] The present disclosure relates generally to fabrics for clothing, footwear, tents, and sleeping bags, and more particularly to breathable metallized composite fabrics for clothing, footwear, tents, and sleeping bags. [Background technology]

[0003] To improve the thermal insulation of buildings, metal cladding porcelain with water vapor permeability and air permeability is used. Polyethylene plexifilamentary film-fibril sheet as house wrap However, these sheets have a rough feel, poor wrinkle resistance, and are difficult to wash. Due to its poor resistance to cleaning it is not suitable for clothing. Summary of the Invention

[0004] As used herein, a method for manufacturing a material that is comfortable for human use, for use in clothing, footwear, tents, and sleeping bags, is provided. Thus, a breathable composite fabric that is durable to wash cycles is described.

[0005] In one embodiment, the laminated fabric comprises an inner layer, a metal coating film disposed on the inner layer, and a metal coating. The metallized membrane includes a base layer including a polymer and an outer layer disposed on the base layer. and a metal layer deposited on the surface of the inner layer. The inner layer is bonded to the metal coating through a first contact point. and the outer layer is bonded to the metallization membrane via a second contact point.

[0006] In some embodiments, the inner layer is bonded to the second surface of the base layer. The surface of the outer layer is opposite the first surface of the base layer. In some embodiments, the outer layer , bonded to the surface of the metal layer.

[0007] In some embodiments, each of the inner layer, the base layer, the metal layer, and the outer layer comprises at least At least 500g / m 2 It has a moisture vapor transmission rate (MVTR) of 24 hours. In an embodiment, the inner layer has a thermal conductivity of at most 0.6 W / m·K. , knitted, or nonwoven. The inner layer may be made of synthetic or natural materials. In some embodiments, the synthetic material may include polyester, nylon, Elastane, polyurethane, polyethylene, polypropylene, polylactic acid, or polytetrafluoroethylene (PTFE).

[0008] In some embodiments, the fabric comprises: In some embodiments, the first and second The two contact points are arranged in a dot matrix. The first contact point and the second contact point include an adhesive. The contact points include the molten base layer or the molten inner layer. In some embodiments, the second contact point includes the molten base layer or the molten outer layer. In the method, the first contact point or the second contact point is formed by stitching or quilting. It has been done.

[0009] In some embodiments, the metal layer is made of aluminum, titanium, silver, gold, copper, zinc, or the like. In some embodiments, the metal oxide includes one or more of lead, magnesium, germanium, etc. In the present invention, the metal layer has a thickness of about 10 nanometers to about 200 nanometers. In some embodiments, the metal layer is formed by deposition of a metal on the first surface of the base layer. In some embodiments, the metal layer is formed at a wavelength of 9.5 micrometers. The reflectivity is in the range of 0.76 to 0.97.

[0010] In some embodiments, the base layer is less than about 50 micrometers, or less than about 2 It has a thickness of less than 5 micrometers.

[0011] In some embodiments, the first surface of the base layer has at least 28 percent The second surface has a specular gloss. The second surface has a roughness at least twice that of the first surface. .

[0012] In some embodiments, the metal coating has a thickness of at least 800 g / m 2 / 24hr In some embodiments, the combined emissivity of the metal coating and the outer layer is is at most 0.85 at a wavelength of 9.5 micrometers.

[0013] In some embodiments, the device comprises a fabric. The device may be clothing, footwear, a tent, or may be one of the sleeping bags. [Brief description of the drawings]

[0014] Particular features of various embodiments of this technology are set forth in the appended claims. The following detailed description sets forth illustrative embodiments, in which the principles of the present disclosure are utilized. A better understanding of the features and advantages of this technology can be gained by referring to the accompanying drawings. .

[0015] [Figure 1] FIG. 1 is a schematic diagram illustrating a breathable composite fabric according to an illustrative embodiment.

[0016] [Diagram 2] FIG. 2 is a schematic diagram illustrating another breathable composite fabric according to an illustrative embodiment.

[0017] [Diagram 3] FIG. 1 illustrates thermal resistance retention and emissivity of fabric samples according to an illustrative embodiment.

[0018] [Figure 4A] FIG. 2 is a schematic diagram illustrating a stack according to an exemplary embodiment. [Figure 4B] FIG. 2 is a schematic diagram illustrating a stack according to an exemplary embodiment. [Figure 4C] FIG. 2 is a schematic diagram illustrating a stack according to an exemplary embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In the following description, certain specific examples are given to facilitate a thorough understanding of various embodiments of the present disclosure. Certain details are set forth. However, it is understood that the disclosure may be practiced without these details. It will be understood by those skilled in the art that various implementations of the present disclosure are described herein. Although embodiments are disclosed, it is within the scope of the present disclosure to those of ordinary skill in the art to appreciate that many modifications and variations are possible within the scope of the present disclosure. Variations and modifications may be made. Such modifications will accomplish the same result in substantially the same way. This invention includes the substitution of known equivalents for any aspect of the present disclosure in order to

[0020] Except where the context otherwise requires, throughout this specification and claims In this regard, the term "comprise" and "comprises "Comprising" and its variants, such as "comprising," are open and inclusive. This should be interpreted in the same sense, i.e. "including but not limited to." Throughout the specification, the recitation of numerical ranges of values ​​is intended to include all values ​​defining that range. is intended to serve as a shorthand for individually referencing each separate value within the range of and each separate value is expressly incorporated herein as if individually set forth herein. In addition, the singular forms "a," "an," and "the" are used interchangeably where the context requires. Unless explicitly stated otherwise, multiple referents are included.

[0021] References throughout this specification to "one embodiment" or "an embodiment" refer to that implementation. A particular feature, structure, or characteristic described in connection with an embodiment may be incorporated into at least one embodiment of the present disclosure. As such, the term "contains" is used in various places throughout this specification. The appearance of the phrases "in one embodiment" or "in an embodiment" does not necessarily Not all of the references refer to the same embodiment, but rather to the same embodiment in some instances. Furthermore, any particular feature, structure, or characteristic may be used in any embodiment. They may be combined in any suitable manner.

[0022] Various embodiments described herein provide breathable fabrics for use in clothing and footwear. This applies to composite fabrics with In one embodiment, the breathable composite fabric comprises an inner layer and a metal coated membrane disposed on the inner layer. and an outer layer disposed on the metallization film. The metallization film includes a base layer including a polymer; and a metal layer disposed on the first surface of the base layer. The inner layer is connected to the metal layer via a first contact point. The outer layer is bonded to the metal coating through a second contact point. The metal layer has a thickness of about 10 nanometers to about 200 nanometers.

[0023] The embodiments will now be described with reference to the accompanying drawings, in which: FIG. FIG. 1 is a schematic diagram illustrating a breathable composite fabric 100 according to one exemplary embodiment. The fabric 100 includes an inner layer 102, a metal coating 104 disposed on the inner layer 102, and a metal coating 104 disposed on the inner layer 102. and an outer layer 106 disposed on the membrane 104 . The metallization film 104 is deposited on the base layer 108 and on a first surface 108a of the base layer 108. For example, the metal layer 110 may be formed on the first surface 112 of the base layer 108. The inner layer 102 and the metal coating film 108a may be formed by vapor deposition of metal. 04 are joined together by a first contact point 112. The first contact point 112 is The first contact points 112 may be arranged in a matrix. The outer layer 106 and the metal coating film 104 are connected to a second surface 108b of the metal layer 108. They are connected to each other via second contact points 114. The second contact points 114 are The second contact points 114 may be arranged in a flex-like fashion to connect the outer layer 106 to the metal layer 110. In the configuration shown in FIG. 1, the base layer 108 is connected to the inner layer 102 and the metal It is sandwiched between layer 110.

[0024] FIG. 2 is a schematic diagram illustrating another breathable composite fabric 200, according to an exemplary embodiment. Fabric 200 is similar to fabric 100, except that metal layer 110 is disposed between inner layer 102 and base layer 103. 108. In the fabric 200, the first contact point 112 connects the inner layer 102 to the surface of the metal layer 110. A second contact 114 connects the inner layer 102 to the surface of the metal layer 110. The layer 106 is connected to the second surface 108b of the base layer 108. The structure of the fabric 200 is This protects the metal layer 110 from scratches or other accidental damage during subsequent handling and use. This provides better protection.

[0025] To make the garment and footwear more comfortable to wear, the inner layer 102 is made of a breathable material. The composite fabrics 100 and 200 are configured to provide high breathability. To resist repeated dynamic / mechanical movements such as cycling, the inner layer 102 may be formed of a suitable It is configured to have sufficient strength when combined with the outer layer 106 .

[0026] In some embodiments, the inner layer 102 has a thickness of at least 500 g / m 2 / 24hr In some embodiments, to provide additional breathability, , the inner layer 102 is at least 750 g / m 2 / 24hr, at least 1000g / m 2 / 24hr or at least 1500g / m 2 / 24hr water vapor transmission rate. The inclusion of an inner layer 102 in the composite fabrics 100 and 200 provides a fabric that is in direct contact with the skin. It also provides a soft feel, pleasant touch, and drape to the human body for applications where the material is to be used. In some embodiments, the inner layer 102 may be slightly thicker to withstand wear and tear during its useful life. The breathable composite fabric has a thickness of at least 60 micrometers. Depending on where the thickness of the inner layer 102 is applied, the thickness of the inner layer 102 may vary. The thickness of 02 is about 60 micrometers to about 2400 micrometers, about 60 micrometers meters to about 1500 micrometers, about 60 micrometers to about 1000 micrometers meters, about 60 micrometers to about 750 micrometers, or about 60 micrometers It may be between about 500 micrometers and about 500 micrometers.

[0027] In some embodiments, the inner layer 102 is one of a woven fabric, a knitted fabric, or a nonwoven fabric. In some embodiments, the inner layer 102 comprises a synthetic material and / or For example, synthetic materials for the inner layer 102 include polyester, polyamide, Polyurethane, polyolefin, polylactic acid, nylon, elastane, and PTFE Further, the natural material for the inner layer 102 may be selected from one or more of the following: cotton, wool, silk, The fibers may include rags, linen, and other natural fibers.

[0028] In some embodiments, the fabric 100 or 200 typically has a thermal conductivity of less than 0.1 W / m·K. It has a low thermal conductivity of not more than 0.6 W / m K, or at most 0.6 W / m K, to reduce conductive heat loss. May be kept to a minimum.

[0029] In some embodiments, the inner layer 102 is compliant with ASTM D503 Tensile strength of at least 45N / 2.54cm under 5 test conditions, ASTM 2261 test conditions and a tear strength of at least 35 under ASTM D774 test conditions It has a Mullen burst of 0 kPa.

[0030] The metal coating 104 serves as a breathable radiant barrier for thermal insulation purposes. For these purposes, the metal coating 104 is designed to have low emissivity and high air permeability. The metal coating 104 is optionally waterproofed. The coating 104 is a breathable IR-reflective layer to improve thermal insulation by reflecting radiation. The control unit 10 may be configured to:

[0031] In some embodiments, the metal coating 104 has a thickness of at least 500 g / m 2 / twenty four In some embodiments, the cellulose acylate 10 has a moisture vapor transmission rate of 100%. Therefore, the metal coating 104 has a thickness of at least 800 g / m 2 / 24hr, at least 1000 g / m 2 / 24hr, at least 1500g / m 2 / 24hr, at least 2000g / m 2 / 24hr, or at least 2500g / m 2 / 24hr water vapor transmission rate good.

[0032] In some embodiments, the base layer 108 of the metallization 104 comprises a polymer. The base layer 108 has a thickness of less than about 50 micrometers to be effective for that purpose. Less than 25 micrometers, or less than about 20 micrometers, or less than about 1 Some have a thickness of less than 5 micrometers, or less than about 10 micrometers. In this embodiment, the base layer 106 has a wavelength of at least about In some embodiments, the base layer 106 has an infrared transmittance of 40%. It has an infrared transmittance of approximately 40% to 60% at 7 to 14 micrometers.

[0033] The first surface 108a of the base layer 108 is configured to be flat, such that After the base layer 108 is metallized, a more effective reflective layer is obtained. In some embodiments, the base layer 108 has a lower melting point than many conventional fabric materials. The polyethylene contains a tensile point, which allows the calendering at a lower temperature to In some embodiments, the base layer may be formed of a sintered material. 108 is polyurethane, thermoplastic polyurethane, polyester, polyamide, ePTF It may include one or more other materials, such as E-membrane. In some embodiments, the base layer 108 is an IR-transparent substrate, such as a polyolefin. The IR-transmissive substrate may include a gold layer disposed on either side of the base layer 108. This is beneficial because it only minimally interferes with the reflectivity of the metal layer 110. The structure of the base layer 108 is such that minimal heat is wasted to warm the layer 108. It is configured to maximize the amount of heat radiation reflected back towards the body. In some embodiments, the base layer 108 may be porous.

[0034] A metal layer 110 may be formed on the base layer 108 by evaporation or other plating techniques. For example, physical vapor deposition (PVD), which includes sputtering and electron beam deposition, The method allows a metal to be deposited on the microporous base layer 108. The metal is Discontinuous layers 110 are formed to maintain air / porosity. In some embodiments, the metal layer 110 is made of aluminum, titanium, silver, gold, The metal may include one or more of copper, zinc, magnesium, germanium, etc. In some embodiments, the metal layer 110 is about 10 nanometers thick to provide pores for breathability. meters to about 200 nanometers, about 10 nanometers to about 100 nanometers, or The metal layer 110 may have a thickness of about 10 nanometers to about 50 nanometers. The length is 9.5 micrometers and the infrared radiation has an emissivity of not more than 0.5. metals and thicknesses are contemplated.

[0035] In some embodiments, the metal layer 110 may be irradiated with infrared light, for example by Fourier transform infrared spectroscopy ( At a wavelength of 9.5 micrometers, as determined by FTIR, the The reflective surfaces are constructed to have thicknesses and surface coverages that provide a range of seven reflectivities. In some embodiments, the metal layer 110 has a wavelength of 9.5 micrometers. It has a reflectivity of 0.8.

[0036] In one example, nanoporous polyethylene and polystyrene coated with 100 nm aluminum Each of the polypropylene base layers (approximately 40% porous, 16-25 μm thick) is Both are 2500g / m 2 It can achieve a water vapor transmission rate of 9.5 Hz / 24 hr. Their reflectivity in micrometers is at least 0.97 on the aluminum side and at least 0.8 on the poly On the olefin side it is at least 0.87.

[0037] The outer layer 106 is designed to withstand wet conditions such as machine washing, as well as rubbing, clocking, and mechanical Suitable for resisting repeated dynamic / mechanical movements, including dry conditions such as drying It is configured to provide increased strength when combined with the inner layer 102 .

[0038] In some embodiments, the outer layer 106 has a thickness of at least 500 g / m 2 / 24hr In some embodiments, to provide additional breathability, , the inner layer 102 is at least 750 g / m 2 / 24hr, at least 1000g / m 2 / 24hr or at least 1500g / m 2 / Has a water vapor transmission rate of 24hr.

[0039] In some embodiments, the outer layer 106 may be a woven fabric, knitted fabric, nonwoven fabric, film, or includes one of the membranes. In some embodiments, the outer layer 106 comprises synthetic and / or natural materials. For example, synthetic materials for the outer layer 106 may include polyester, polyamide, polyurethane, polyamide ... One or more of polyolefin, polylactic acid, nylon, elastane, and PTFE Further, the natural materials for the outer layer 106 are selected from cotton, wool, silk, linen, and other natural materials.

[0040] In some embodiments, the combined emissivity of the metal coating 104 and the outer layer 106 is approximately The thermal resistance of the metallized sheet 104 without the outer layer may be about 0.85. 45% is maintained. Various choices of the outer layer 106 can provide the appropriate emissivity. For example, the outer layer 106 may be made of a highly IR transparent material (e.g., polyolefin). If the outer layer 106 is thin (e.g., less than 400 μm), it will have a high cover factor. As used herein, the term "cover fiber" refers to a fiber that is made of a material that is substantially non-woven. The kuta is the ratio of solids, such as yarns or fibers, to form the outer layer 106 relative to the total surface area of ​​the fabric. It is defined as the ratio of the surface area covered by the component. IR-low-transmitting / IR-opaque materials ( For example, polyester, nylon, elastane, polyurethane, polylactic acid, PTFE, For fabrics such as cotton, wool, silk, and linen, the outer layer 106 has a lower cover factor ( For example, about 75% or less, thereby making it possible to improve the reflectivity of the metallized reflective sheet 10. For low IR / non-transparent materials, the surface coverage is 9 Above 0%, the total emissivity becomes too high (>0.85), and therefore the metallized sheet The thermal resistance achieved by 104 is significantly reduced.

[0041] Table 1 below gives the material choices for the outer layer in relation to the total emissivity (metallized sheet + outer layer). Samples A to D are the same metallized sheets, i.e., 9.5 μm wavelength. The reflectivity in meters is 0.97 on the aluminum side and 0.87 on the polyolefin side. Sample A was prepared using a 0.1 Lumi-coated nanoporous polyolefin film. It includes an outer layer made of non-woven polyolefin (IR transparent) with a thickness of 6 mm. The outer layer of sample A has a cover factor of 100%. Sample A has an acceptable total emissivity of Sample B has a coating / finish / printing on the surface of the outer layer. Printing (6g / m 2 Sample B is the same as sample A except that it contains less than 100% of the acceptable Sample C is made of polyester raw silk (FDY The outer layer of sample C is made of a 0.38 mm thick knitted fabric (low IR transmission). mm and has a cover factor of 67-71%. Sample C also has an acceptable total It has an emissivity of 0.63. Sample D includes an outer layer made of cotton (IR opaque). The outer layer of sample D has a thickness of 0.38 mm and a cover factor of 94%. Pull D failed due to the use of a high cover factor, IR opaque material. It has a total emissivity of 0.89. [Table 1]

[0042] FIG. 3 is a diagram showing the thermal resistance retention rate and emissivity of samples A to D shown in Table 1. As shown in Fig. 1, the thermal resistance retention rates of samples A to D are 69%, 62%, and 47%, respectively. %, and 29%.

[0043] As shown in Table 1, the outer layer is not limited to a single component material, but may be a thin coating. For example, sample B may have a 0.16 mm polyethylene imperfection. Lightweight printing on woven film (e.g. add-on weight <6g / m 2 ), which is a complex In some embodiments, the IR-transmitting material has a minor effect on the IR reflectivity of the composite. The addition of small amounts (<2%) of additives such as color pigments also has a negligible effect on the IR reflectivity of the composite. These fabrics are used in the manufacture of clothing, footwear, etc. This provides more flexibility and color / pattern options.

[0044] The inner layer 102 and the metallization film 104 are bonded to each other via a plurality of first contact points 112. In some embodiments, the metal coating 104 is made of a water-based adhesive, a solvent-based adhesive, or the like. It is bonded to the inner fabric with an adhesive such as a heat-activated adhesive or a pressure-activated adhesive. The adhesive may be applied to one or both of the inner layer 102 and the metal coating 104. The adhesive is disposed on the breathable composite fabric 100 or It is applied in a way that does not significantly reduce the breathability of the 200. For example, this is Instead of a solid film, the adhesive is applied in a dot matrix pattern as first contact points 112. This can be achieved by applying the coating.

[0045] In some embodiments, the inner layer 102 and the metal coating 104 are treated with ultrasonic or laser The base layer 108 and / or the inner layer 102 may be fused together by welding. Heating the contact points until they exceed the contact point bonds the metallization 104 to the underlying inner layer 102. For example, a portion of the base layer 108 may be configured to form the first contact point 112. Alternatively, a portion of the inner layer 102 may be melted and connected to the first 1. The base layer 108 (FIG. 1) or the metal layer 110 is melted to form contact points 112. In some embodiments, a portion of the inner layer 102 and the base may be connected to the base. 1 and a portion of the metal layer 108 are formed at a first contact point 1 between the inner layer 102 and the metal coating film 104. 12. In some embodiments, the first contact point 11 2 may be formed by stitching or quilting.

[0046] The first contact point 112 is preferably configured to minimize the effect on the breathability of the fabric 100 or 200. As shown in FIG. 1, the first contact point 1 is disposed between the inner layer 102 and the metal coating film 104. 12 has an area that covers less than 80% of the inner layer 102 (or the metal coating 104). In order to obtain good breathability, the first contact point 112 is connected to the inner layer 102 (or the metal coating film 104). ) less than 50%, or less than 40%, or less than 30% of the surface area of ​​the In order to obtain further improved breathability, the first contact point 112 is connected to the inner layer 102 (or The metal coating 104) covers less than 20% of the surface.

[0047] The first contact point 112 between the inner layer 102 and the metallization film 104 may be any type of The first contact points 112 may be arranged in a dot matrix. The thickness of the composite fabric 100 or 200 may be uniform throughout the composite fabric 100 or 200. In the first embodiment, the density of the first contact points 112 may vary depending on the region. The density of contact points 112 may be increased in areas where high wear is expected.

[0048] The outer layer 106 and the metal coating 104 are bonded to each other via a plurality of second contact points 114. In some embodiments, the metal coating 104 is made of a water-based adhesive, a solvent-based adhesive, or the like. The adhesive is adhered to the outer layer 106 by an adhesive, such as a heat-activated adhesive, or a pressure-activated adhesive. The adhesive may be applied to one or both of the outer layer 106 and the metal coating 104. The adhesive is placed on the breathable composite fabric 100 and adheres them to each other. or 200. For example, this is a joint Instead of a film with no holes, the adhesive is applied to the second contact points 114 in a dot matrix pattern. This can be achieved by applying the coating.

[0049] In some embodiments, the outer layer 106 and the metal coating 104 are treated with ultrasonic or laser The base layer 108 and / or the outer layer 106 may be fused together by welding. Heating the contact points above the bond point bonds the metal coating 104 to the outer layer 106. For example, a portion of the base layer 108 may be formed to form the second contact point 114. Alternatively, a portion of the outer layer 106 may be melted and connected to the second contact. 1 or the base layer 108 (FIG. 1). In some embodiments, a portion of the outer layer 106 and the base layer 2 may be connected to the outer layer 106. 108 form a second contact point 114 between the outer layer 106 and the metal coating 104. (FIG. 2). In some embodiments, the second contact point 114 may be formed by stitching or quilting.

[0050] The second contact point 114 is preferably configured to minimize the effect on the breathability of the fabric 100 or 200. As shown in FIG. 1, the second contact point 1 is disposed between the outer layer 106 and the metal coating film 104. 14 has an area that covers less than 80% of the outer layer 106 (or metal coating 104). In order to achieve good breathability, the second contact point 114 is connected to the outer layer 106 (or the metallized film 104 ). ) less than 50%, or less than 40%, or less than 30% of the surface area of ​​the For further improved breathability, the second contact point 114 is connected to the outer layer 106 (or The metal coating 104) covers less than 20% of the surface.

[0051] The second contact point 114 between the outer layer 106 and the metal coating 104 may be any form of The density of the second contact points 114 may be arranged in a dot matrix. It may be uniform throughout the composite fabric 100 or 200. In the embodiment, the density of the second contact points 114 may vary depending on the region. The density of dots 114 may be increased in areas where high wear is expected.

[0052] In some embodiments, the breathable composite fabric 100 or 200 comprises an inner layer 10 2. At least 70% of the metal coating 104 and its components, including the outer layer 106, are breathable. It has MVTR.

[0053] In some embodiments, the breathable composite fabric 100 or 200 is constructed from an outer The metal coating film 104 (reflective layer) is exposed so as not to block the reflectivity of the fabric on the layer side. There are.

[0054] In some embodiments, when the contact points 112, 114 are embodied with an adhesive, , 30 or 60 g / m depending on adhesive 2 Less than the weight is added.

[0055] In some embodiments, the breathable composite fabric 100 / 200 can be used in clothing, footwear, It may be used to make tents, sleeping bags, etc. In some embodiments, ventilation The flexible composite fabric 100 / 200 is used for making clothing, footwear, tents, sleeping bags, etc. Examples of configurations are shown in Figures 4A-4C. Figure 4A shows an example. FIG. 4 is a schematic diagram illustrating a laminate 400 according to an exemplary embodiment. The laminate 400 is a breathable The outer layer is made of a composite fabric 100 / 200, the middle fiber layer 402 and the single layer fabric 4 04. In some embodiments, the middle fibrous layer 402 is made of synthetic insulation, fluff, Insulation materials may include fibrous insulation materials such as:

[0056] FIG. 4B is a schematic diagram illustrating stack 410, according to an exemplary embodiment. 0 is made of an outer layer 404 made of a single layer of fabric, an intermediate fiber layer 402, and a breathable composite fabric. and an inner layer made from earth 100 / 200.

[0057] FIG. 4C is a schematic diagram illustrating a stack 420, according to an example embodiment. 0 is an outer layer made of a breathable composite fabric 100 / 200, an intermediate fiber layer 402, and an inner layer made of the breathable composite fabric 100 / 200. It will be understood that 420 and 421 are for illustrative purposes only. Other constructions using the composite fabric 100 / 200 are contemplated.

[0058] The disclosure also provides a breathable infrared reflective composite that provides enhanced thermal insulation through infrared reflection. In the three-ply composite, the middle layer is a breathable metal-coated fabric that is primarily responsible for infrared reflection. The outer layer is the cover layer, while the inner and outer layers are both resistant to mechanical wear such as repeated abrasion and washing. It provides strength and support to the metallized layer so that it can withstand motion. Not only does it protect the metal coating from oxidation and thus avoid a reduction in reflectivity, It is also chosen to block the outward emissivity of the fabric. It has an emissivity of at most 0.8. It has been demonstrated to provide effective heating performance (measured by thermal resistance) through IR reflection. The inner layer is also selected to provide a pleasant feel next to the skin.

[0059] In one aspect, the breathable composite fabric disclosed herein has high breathability. This breathability makes the garment more comfortable to wear than garments made from non-perforated reflective foil.

[0060] In another aspect, the breathable composite fabric disclosed herein uses a metal-coated membrane. The metallized membrane is made of polyethylene and contains a more effective reflective layer. the base layer having a lower melting point than many conventional textile materials; This allows for the production of curry at lower temperatures, for example, temperatures below 200°C or below about 135°C. By grinding, a smoother surface can be achieved.

[0061] In yet another embodiment, the breathable composite fabric disclosed herein has a thickness of about 200 microns. It includes a base layer of polyethylene having a thin thickness of chromium or less. The base layer is made of a material that is highly resistant to infrared radiation from the human body (wavelength: 7 to 14 micrometers). It becomes quite permeable (about 40-60%). Therefore, breathable composite fabrics are more effective at absorbing The heat that is lost to warming the layer is minimal, so it is reflected back towards the body. This maximizes the heat radiation returned.

[0062] In another aspect, the breathable composite fabric disclosed herein is made of meltspun or The composite fabric provides better structural integrity and antioxidant capacity than nonwoven materials and is breathable. , and is less likely to collapse after washing.

[0063] In another aspect, the breathable composite fabric disclosed herein has an inner layer and an outer layer made of metal. The adhesive includes contact points for adhering to metal coatings, resulting in the adhesive properties of clothing, footwear, tents, and sleeping bags. This provides high breathability, which is desirable for certain applications, or other applications requiring textile materials.

[0064] The foregoing description of the disclosure has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure to the precise form disclosed. The breadth and scope of the disclosure should not be limited by any of the exemplary embodiments described above. Many modifications and variations will be apparent to those skilled in the art. The modifications and variations include any relevant combination of the features of the disclosure. The embodiments have been chosen and described in order to best explain the principles of the disclosure and its practical application, thereby enabling others skilled in the art to understand the disclosure in various embodiments and various modifications adapted to the particular use contemplated. It is intended that the scope of the disclosure be defined by the appended claims and other equivalents. The present invention provides, for example, the following items. (Item 1) A fabric, The inner layer, a metal coating film disposed on the inner layer, the metal coating film including a base layer including a polymer and a metal layer deposited on a first surface of the base layer, the inner layer being coupled to the metal coating film via a first contact point; an outer layer disposed on the metallization film and coupled to the metallization film via a second contact point; A fabric that has: (Item 2) Item 10. The fabric of item 1, wherein the inner layer is bonded to a second surface of the base layer, the second surface being opposite the first surface. (Item 3) 3. The fabric according to claim 1 or 2, wherein the outer layer is bonded to a surface of the metal layer. (Item 4) Each of the inner layer, the base layer, the metal layer, and the outer layer has a strength of at least 500 g / m 2 4. The fabric according to any one of the preceding claims, having a water vapor transmission rate of 1 / 24hr. (Item 5) 5. The fabric according to any one of the preceding claims, wherein the fabric has a thermal conductivity of at most 0.6 W / m K. (Item 6) 6. The fabric of any one of the preceding claims, wherein the inner layer comprises one of a woven fabric, a knitted fabric, or a nonwoven fabric. (Item 7) 7. The fabric of claim 6, wherein the inner layer comprises a synthetic or natural material. (Item 8) 8. The fabric of claim 7, wherein the synthetic material is selected from one or more of polyester, nylon, elastane, polyurethane, polyolefin, polylactic acid, or polytetrafluoroethylene (PTFE). (Item 9) 9. The fabric according to any one of the preceding claims, wherein the fabric has a water vapor transmission rate of at least 70% for each of the inner layer, the metallized membrane, and the outer layer. (Item 10) 10. The fabric of any one of the preceding claims, wherein the first contact point and the second contact point comprise an adhesive. (Item 11) 11. The fabric of any one of the preceding claims, wherein the first contact point comprises a molten base layer. (Item 12) 12. The fabric of any one of the preceding claims, wherein the first contact point comprises a molten inner layer. (Item 13) 13. The fabric of any one of the preceding claims, wherein the second contact point comprises a molten base layer. (Item 14) 14. The fabric of any one of the preceding claims, wherein the second contact point comprises a molten outer layer. (Item 15) Item 15. The fabric of any one of items 1 to 14, wherein the first contact point or the second contact point is formed by stitching or quilting. (Item 16) 16. The fabric of any one of the previous items, wherein the metal layer comprises one or more of aluminum, titanium, silver, gold, copper, zinc, magnesium, or germanium. (Item 17) 17. The fabric of any one of the preceding claims, wherein the metal layer has a thickness of about 10 nanometers to about 200 nanometers. (Item 18) 18. The fabric according to any one of the preceding claims, wherein the metal layer has a reflectivity in the range of 0.76 to 0.97 at a wavelength of 9.5 micrometers. (Item 19) The metal coating has a thickness of at least 800 g / m 2 19. The fabric according to any one of the preceding claims, having a water vapor transmission rate of 1 / 24hr. (Item 20) 20. The fabric according to any one of the preceding claims, wherein the combined emissivity of the metal coating and the outer layer is at most 0.85 at a wavelength of 9.5 micrometers. (Item 21) 21. An apparatus comprising the fabric of any one of items 1 to 20, wherein the apparatus is one of clothing, footwear, a tent, or a sleeping bag.

Claims

1. A breathable metal-coated composite fabric for clothing, An innermost fabric layer comprising a woven fabric, knitted fabric, or nonwoven fabric, wherein the innermost fabric layer includes a first inner surface and a first outer surface, and the innermost fabric layer has a water vapor permeability of at least 500 g / m² / 24hr, the water vapor permeability being an indicator of the degree of breathability; A metal coating film, A second inner surface bonded to the first outer surface of the inner layer via a first contact point; and Second outer surface A metal coating film including; A metal coating film comprising a base layer containing a nanoporous polyolefin film, wherein the base layer has a second inner surface and a third outer surface, the base layer has a thickness of less than 50 microns, an infrared transmittance of at least 40% at a wavelength of about 9.5 microns, and a water vapor transmittance of at least 500 g / m² / 24hr, and the nanoporous polyolefin film has a reflectivity of at least 0.87 at a wavelength of about 9.5 microns; A metal coating film comprising a metal layer, wherein the metal layer comprises a second outer surface and a third inner surface, the third inner surface being bonded to the third outer surface of the base layer, and the metal layer having a reflectivity of at least 0.76 at a wavelength of approximately 9.5 microns and a water vapor transmittance of at least 500 g / m² / 24hr; An outermost fabric layer including a fourth outer surface and a fourth inner surface, wherein the fourth inner surface is bonded to the second outer surface of the metal layer of the metal coating film via a second contact point, and the outermost fabric layer has a water vapor permeability of at least 500 g / m² / 24hr. Fabric, including.

2. The fabric according to claim 1, wherein the fabric has a thermal conductivity of at most 0.6 W / m·K.

3. The fabric according to claim 1, wherein the inner layer comprises a synthetic material or a natural material.

4. The fabric according to claim 3, wherein the synthetic material is selected from one or more of polyester, nylon, elastane, polyurethane, polyolefin, polylactic acid, or polytetrafluoroethylene (PTFE).

5. The fabric according to claim 1, wherein the inner layer, the metal coating film, and the outer layer each have a water vapor permeability of at least 70%.

6. The fabric according to claim 1, wherein the first contact point and the second contact point contain an adhesive.

7. The fabric according to claim 1, wherein the first contact point and the second contact point include a melted base layer, a melted inner layer, or a melted outer layer.

8. The fabric according to claim 1, wherein the first contact point or the second contact point is formed by sewing or quilting.

9. The fabric according to claim 1, wherein the metal layer comprises one or more of aluminum, titanium, silver, gold, copper, zinc, magnesium, or germanium.

10. The fabric according to claim 1, wherein the metal layer has a thickness of 10 nanometers to 200 nanometers.

11. The fabric according to claim 1, wherein the nanoporous polyolefin has a thickness of 16 to 25 microns and has about 40% porosity, and the metal layer has a thickness of about 100 nm.

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