A coated fabric and a thermal fabric

Abstract

This application discloses a coated fabric, comprising a base layer and a reflective layer deposited on the base layer, wherein a color layer is further deposited on the reflective layer; the base layer is a flexible fabric layer; the reflective layer is a metallic layer; and the color layer comprises at least a metal oxide layer. A thermal insulation fabric is also disclosed, applicable to clothing accessories, home textiles, and outdoor equipment, wherein the thermal insulation fabric includes the coated fabric. This application, by setting a color layer on the reflective layer, endows the heat-reflective fabric with colors other than the natural metallic color, thus combining good thermal insulation and visual appeal.

Description

Technical Field

[0001] This application relates to the field of textile fabrics, and in particular to a coated fabric and a thermal insulation fabric. Background Technology

[0002] As living standards improve, more and more people are pursuing aesthetic appeal in clothing fabrics. Traditional heat-reflective fabrics achieve heat reflection and insulation by depositing a nano-metal layer onto the surface of the fabric layer. This nano-metal layer is typically a Cu, Ag, or Al layer, resulting in traditional heat-reflective fabrics only displaying the natural metallic color, which is monotonous and fails to meet the aesthetic demands of today's consumers. Utility Model Content

[0003] To address the problems existing in the prior art, this application provides a coated fabric that can provide colors other than the natural metallic color, and has both good warmth retention and visual appeal.

[0004] This application discloses a coated fabric, including a base layer and a reflective layer deposited on the base layer, wherein a color layer is also deposited on the reflective layer; the base layer is a flexible fabric layer; the reflective layer is a metal layer; and the color layer includes at least a metal oxide layer.

[0005] According to an embodiment of the present invention, the metal layer is taken from any one of the following: Ti layer, Ag layer, Al layer, Cu layer, Ni layer, Cr layer, Ta layer, or an alloy layer including at least one metal element selected from Ti, Ag, Al, Cu, Ni, Cr, and Ta.

[0006] According to an embodiment of this utility model, the thickness of the reflective layer is taken from 30-300nm.

[0007] According to an embodiment of this utility model, the thickness of the metal oxide layer is taken from 5-50 nm.

[0008] According to an embodiment of this utility model, the metal oxide layer is a mixture layer composed of oxides of the same metal element in different valence states.

[0009] According to the embodiments of this utility model, the metal oxide layer is taken from any one of yttrium zirconium oxide layer, titanium oxide layer, silicon aluminum oxide layer, aluminum zinc oxide layer, iron oxide layer, copper oxide layer, niobium oxide layer, and tantalum oxide layer.

[0010] According to an embodiment of the present invention, the coated fabric further includes a transition layer;

[0011] The transition layer is disposed between the base layer and the reflective layer; and / or, the transition layer is disposed between the reflective layer and the color layer.

[0012] Specifically, the transition layer is used to improve the bonding performance between film layers and reduce the risk of interlayer delamination.

[0013] Preferably, the transition layer is disposed between the base layer and the reflective layer.

[0014] According to an embodiment of the present invention, the thickness of the transition layer is taken from 2-20 nm.

[0015] Specifically, the transition layer is taken from any one of the Cr layer, Ni layer, NiCr layer, and Ti layer.

[0016] According to an embodiment of this utility model, the color layer further includes a decorative layer;

[0017] The decorative layer is disposed on the side of the metal oxide layer away from the reflective layer.

[0018] Specifically, the decorative layer is used to further enhance the aesthetic appeal.

[0019] This application also discloses a thermal insulation fabric, which is applied to clothing accessories, home textile products, and outdoor equipment, and the thermal insulation fabric includes the coated fabric as described in any of the above embodiments.

[0020] The beneficial effects of this application are as follows:

[0021] By setting a color layer on the reflective layer, the coated fabric is given colors other than the natural metallic color, which has both good warmth retention and visual effect. The color layer includes a metal oxide layer. By utilizing the chemical stability and high hardness of metal oxides, the fabric's abrasion resistance and service life are improved while ensuring color fastness and color stability. Attached Figure Description

[0022] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of the coated fabric disclosed in this application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the coated fabric disclosed in this application. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the actual color of the coated fabric disclosed in this application.

[0026] In the diagram: 1. Base layer; 2. Reflective layer; 3. Color layer; 3a. Metal oxide layer; 3b. Decorative layer; 4. Transition layer. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0031] This application discloses a coated fabric in a specific embodiment, including a base layer 1 and a reflective layer 2 and a color layer 3 disposed sequentially from the base layer 1.

[0032] The base layer 1 is selected as a flexible fabric, more preferably a flexible textile fabric, including but not limited to polyimide fiber cloth, aramid fiber cloth, silicone fabric, etc. The thickness of the base layer 1 will not affect the color of the colored heat-reflective fabric disclosed in this application, and those skilled in the art can select an appropriate thickness according to the type of fabric used; in this application, in order to accommodate flexible fabrics and flexible films, the thickness of the base layer 1 is preferably 1-200 μm.

[0033] The thickness of the reflective layer 2 is 30-300 nm. The material of the reflective layer 2 can be any infrared reflective material. The reflective layer 2 is a metal layer, preferably a single metal layer or an alloy layer. The single metal layer can be selected from at least one of Ti, Ag, Al, Cu, Ni, Cr, and Ta layers. The alloy layer can be an alloy layer composed of at least two of the above-mentioned metal materials, such as AlTi alloy, AgCu alloy, etc. It can also be a conductive alloy selected from at least one of the above-mentioned metal materials and other non-metallic materials, such as Al-Si3N4 alloy, etc. As a further preferred embodiment, the reflective layer 2 is a single metal layer or alloy layer with an infrared reflectivity ≥90%, such as Ag layer, Cu layer, Ag-Mg alloy layer, etc. In hot environments, the reflective layer 2 can reflect external solar heat, reducing the external heat received by the human body and ensuring a cool experience for the wearer. In cold environments, the reflective layer 2 can reflect mid-infrared heat emitted by the human body back to the human body, reducing body heat loss and keeping the wearer warm. Meanwhile, reflective layer 2 effectively reflects ultraviolet rays, reducing their penetration and thus providing additional UV protection. This property is crucial for outdoor activities, preventing UV damage to the skin and reducing the risk of sunburn. The fabric also possesses antistatic and antibacterial properties.

[0034] The color layer 3 comprises at least a metal oxide layer 3a. In one embodiment of this application, the color layer 3 is only a metal oxide layer 3a, and the color layer 3 utilizes the color of the metal oxide material to achieve color rendering. The thickness of the color layer 3 is 5-50 nm. Specifically, in this application, the metal oxide layer 3a is more preferably a variable valence metal oxide layer 3a. The variable valence metal oxide refers to a mixture layer of oxides of different valence states formed by the combination of metal and oxygen, and is further preferably a mixture layer composed of oxides of different valence states of the same metal element; wherein the metal can exhibit multiple different oxidation states. Selecting a variable valence metal oxide layer 3a composed of the same metal element enables target-free preparation in production, simplifies the production process, improves film quality, and reduces production costs. Specifically, the variable valence metal oxide layer 3a in this application is selected from at least one of yttrium oxide stabilized zirconium oxide layer, titanium oxide layer, aluminum oxide layer, copper oxide layer, iron oxide layer, nickel oxide layer, niobium oxide layer, and tantalum oxide layer.

[0035] Specifically, the color of base layer 1 is gray, such as... Figure 3 -a shows that when the variable valence metal oxide used in color layer 3 is tantalum oxide, and the variable valence tantalum oxide layer is a mixture of Ta2O5, TaO2, and Ta2O7, the coating material is golden yellow, as shown. Figure 3 -b shows that when the variable valence tantalum oxide layer is a mixture of Ta2O5 and TaO, the coating material is purplish-red, as shown in Figure 1. Figure 3 -c is shown.

[0036] In another embodiment of this application, the color layer 3 further includes a decorative layer 3b disposed on the metal oxide layer 3a. The decorative layer 3b is disposed on the side of the metal oxide layer 3a away from the reflective layer 2, facing the outermost side of the fabric, and is used to further decorate the coated fabric of this application and enhance its appearance. Specifically, the decorative layer 3b includes a texture layer, a glossy layer, a calendered layer, a printed layer, a hot stamping layer, and an embroidered layer.

[0037] Furthermore, a reflective layer 2 is prepared on the substrate 1 by vacuum deposition, and more preferably by magnetron sputtering. When the reflective layer 2 is a single metallic layer, the deposition atmosphere is pure argon, and the target material is selected from a single metallic target; when the reflective layer 2 is an alloy layer, the deposition atmosphere is pure argon, and the target material is selected from an alloy target, or a mixed target material of an alloy target and a metal compound ceramic target. A color layer 3 is deposited on the reflective layer 2 by magnetron sputtering, with a deposition atmosphere of a mixture of argon and oxygen, and the target material is selected from any one of a single metallic target, an alloy target, or a metal oxide ceramic target. As a further preferred embodiment, the target material for depositing the color layer 3 is selected as a single metallic target or an alloy target, and the deposition atmosphere is a mixture of argon and oxygen. By changing the gas flow ratio of oxygen to argon during the deposition process, color layers 3 with different variable valence state oxide compositions are deposited.

[0038] This application also discloses another specific embodiment of a coated fabric. The coated fabric further includes a transition layer 4, which can be disposed between the base layer 1 and the reflective layer 2, between the reflective layer 2 and the color layer 3, or simultaneously between the base layer 1, the reflective layer 2, and the color layer 3. Preferably, this embodiment includes only one transition layer 4, disposed between the base layer 1 and the reflective layer 2. The transition layer 4 serves as a connecting layer between adjacent film layers, with its thermal expansion coefficient falling between the adjacent layers to form a smooth transition. This disperses stress variations between the film layers on both sides of the transition layer 4, thereby improving the bonding strength between the film layers. The transition layer 4 is selected from at least one of a single metal layer or an alloy layer. When the transition layer 4 is a single metal layer, it can be selected from a Ni layer or a Cr layer. The thermal expansion coefficient of Ni is 13.4 × 10⁻⁶. -6 At ℃, the coefficient of thermal expansion of Cr is 11.2 × 10⁻⁶. -6 The temperature is close to that of commonly used metals and ceramics. Ni also exhibits excellent wettability, forming a smooth surface during film deposition, which is beneficial for the adhesion of subsequent layers. Cr can form chemical bonds with other metals in many cases, enhancing the bonding strength between film layers, especially maintaining strong adhesion at high temperatures. This contributes to improved interlayer bonding strength and wear resistance. When the transition layer 4 is an alloy layer, a NiCr alloy layer is preferred. Preferably, the thickness of the transition layer 4 is between 2-20 nm. When the thickness of the transition layer 4 is less than 2 nm, too small a thickness will affect the deposition quality of the transition layer 4, while too large a thickness will generate significant thermal stress, thereby reducing the adhesion between film layers, and decreasing interlayer bonding strength and wear resistance.

[0039] Further preferred, a transition layer 4 is deposited on the substrate layer 1 by magnetron sputtering in a pure argon atmosphere, and the target material is selected as a metal elemental target or an alloy target; a reflective layer 2 is deposited on the transition layer 4 by magnetron sputtering.

[0040] In another embodiment of this application, a thermal insulation fabric is also disclosed, which can be applied to clothing accessories, home textile products, or outdoor equipment, and the thermal insulation fabric includes the coated fabric disclosed in this application. For example, the thermal insulation fabric can have a skin-friendly layer provided below the base layer 1, or a waterproof layer, fleece layer, etc. provided on the color layer 3, based on the coated fabric, to further enhance the downstream application space of the coated fabric.

[0041] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A coated fabric, characterized by, It includes a base layer (1) and a reflective layer (2) deposited on the base layer (1), and a color layer (3) is also deposited on the reflective layer (2). The base layer (1) is a flexible fabric layer; The reflective layer (2) is a metal layer; the thickness of the reflective layer (2) is 30-300 nm. The color layer (3) is a metal oxide layer (3a), which is a mixture of oxides of the same metal element in different valence states; the thickness of the metal oxide layer (3a) is 5-50 nm. It also includes a transition layer (4); The transition layer (4) is disposed between the base layer (1) and the reflective layer (2); And / or, The transition layer (4) is disposed between the reflective layer (2) and the color layer (3).

2. The coated fabric of claim 1, wherein, The metal layer is taken from any one of the following: Ti layer, Ag layer, Al layer, Cu layer, Ni layer, Cr layer, Ta layer, or an alloy layer including at least one of the following metallic elements: Ti, Ag, Al, Cu, Ni, Cr, and Ta.

3. The coated fabric of claim 1, wherein, The metal oxide layer (3a) is taken from any one of yttrium zirconium oxide layer, titanium oxide layer, silicon aluminum oxide layer, aluminum zinc oxide layer, iron oxide layer, copper oxide layer, niobium oxide layer, and tantalum oxide layer.

4. The coated fabric of claim 1, wherein, The thickness of the transition layer (4) is 2-20 nm.

5. The coated fabric of claim 1, wherein, The color layer (3) also includes a decorative layer (3b); The decorative layer (3b) is disposed on the side of the metal oxide layer (3a) away from the reflective layer (2).

6. A thermal fabric for use in apparel accessories, home textile products, outdoor equipment, characterized in that, The thermal insulation fabric includes the coated fabric as described in any one of claims 1-5.

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