Soft heat-insulating and cooling fabric

Abstract

The utility model relates to a soft heat-insulating cooling fabric, which comprises a release paper process coating and black light-absorbing cloth, the release paper process coating comprises functional coatings including a waterproof layer, a light reflection opaque layer and a light-absorbing layer, the light-absorbing layer and the black light-absorbing cloth are used for absorbing ambient light and preventing reflection of ultraviolet rays, the light reflection opaque layer is used for reflecting light, and the light-absorbing layer is used for absorbing light. Black can be prevented from permeating to the surface of the fabric. The composite fabric disclosed by the utility model has the effects of heat insulation and cooling, the black light-absorbing cloth also plays a role in absorbing light and heat to prevent the human body from being hurt by the reflection of ultraviolet rays, the light-absorbing layer is protected, and an anti-wear layer is omitted, so that the weight of the composite fabric structure is light; by means of the structure that the release paper process coating is attached to the black light-absorbing cloth, the black light-absorbing cloth does not need to participate in the drying process of all functional coatings, the black light-absorbing cloth is dried once only when the fabric is attached and formed, damage to the cloth is reduced, and the composite fabric structure is soft in texture.

Description

Technical Field

[0001] The utility model relates to the field of textile fabrics, in particular to a soft heat-insulating and cooling fabric. Background Art

[0002] Currently, umbrella and tent fabrics on the market primarily use two types of sun-blocking and cooling materials. One is a single vinyl sun-blocking fabric, which uses black polyurethane or other black coating materials to absorb sunlight, absorbing and blocking ultraviolet rays, visible light, and infrared rays, achieving sun protection. However, after vinyl absorbs light, it quickly heats up, especially in the scorching summer. This absorbs a large amount of heat from high-intensity sunlight, causing it to reach very high temperatures. Users can feel the intense heat radiation when approaching, and may even suffer burns from touching the hot vinyl. Furthermore, vinyl fabric ages quickly, resulting in a short service life.

[0003] Another approach is to use a single silver-coated sunscreen fabric, which directly reflects sunlight to reduce the temperature and UV rays beneath the fabric. However, silver-coated fabric has the following drawbacks in practical applications: First, it is expensive and prone to aging; second, its glare is glaring, causing light pollution; and third, the bottom surface of the silver-coated fabric also has a reflective effect, reflecting ambient light from the ground, buildings, water, and other surroundings onto the user below. In particular, the concave structure on the underside of the umbrella fabric concentrates the reflection of ambient light, resulting in a still-high temperature under the fabric.

[0004] Therefore, some have proposed composite fabric structures. A light-reflecting layer is applied to the outer surface of a base fabric to reflect direct sunlight; a light-absorbing layer is applied to the inner surface to absorb stray light from the surrounding environment. Furthermore, protective layers such as waterproof and abrasion-resistant layers can be applied. While this composite fabric structure achieves surface reflection for cooling and bottom absorption to prevent ambient light from reflecting onto the human body, it is well known that the base fabric, serving as a substrate, requires drying both the base fabric and the coating after each layer of functional coating is applied. For example, if the fabric is coated with four layers of functional coating, a total of four drying cycles are required. This multiple drying process can cause the composite fabric to become stiff and deformed. Utility Model Content

[0005] In order to solve the problem of insufficient softness of existing heat-insulating and cooling fabrics with composite structures, the utility model provides a soft heat-insulating and cooling fabric.

[0006] The technical solution of this utility model is as follows:

[0007] A soft heat-insulating and cooling fabric, characterized in that it includes a release paper coating and a black light-absorbing fabric that are bonded together, and the release paper coating includes multiple functional coatings, the functional coatings including a waterproof layer, a light-reflecting opaque layer and a light-absorbing layer. The black light-absorbing layer and the black light-absorbing fabric are used to absorb ambient light to prevent reflection of ultraviolet rays. The light-reflecting opaque layer is used to reflect light and to block the color of the light-absorbing layer to prevent black from penetrating into the fabric surface.

[0008] The utility model according to the above solution is characterized in that the thickness of the waterproof layer is 10 to 30 microns.

[0009] The utility model according to the above solution is characterized in that the waterproof layer is a transparent epoxy resin film.

[0010] The utility model according to the above solution is characterized in that the thickness of the light reflecting color shielding layer is 60 to 180 microns.

[0011] The utility model according to the above solution is characterized in that the light-reflecting color-shielding layer is a resin layer with a light-reflecting effect.

[0012] Furthermore, the resin layer is filled with color powder and light reflecting powder.

[0013] Furthermore, the light reflecting powder is radiation cooling powder.

[0014] The utility model according to the above solution is characterized in that the material of the light absorbing layer is a black resin with a microporous structure.

[0015] The utility model according to the above solution is characterized in that the thickness of the light absorbing layer is 60 to 180 microns.

[0016] The utility model according to the above solution has the following beneficial effects:

[0017] The composite fabric structure of the present invention has a light-reflecting, color-blocking layer and a light-absorbing layer, which has the effect of heat insulation and cooling. The light-absorbing layer is a black glue layer with a microporous structure, which has a higher light-absorbing efficiency. The black light-absorbing fabric can play a certain role in absorbing light and heat, and can also provide protection for the light-absorbing layer on the bottom surface of the composite fabric structure, eliminating an anti-wear layer, making the composite fabric structure lighter.

[0018] Moreover, the utility model uses a structure in which the release paper process coating is bonded to the black light-absorbing fabric, so that the black light-absorbing fabric does not need to participate in the drying process of each functional coating on the release paper. The black light-absorbing fabric is dried only once during the bonding stage of the fabric forming, thereby reducing damage to the fabric. Therefore, the formed composite fabric structure has a soft texture. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model without removing the release paper;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model after the release paper is removed.

[0021] In the figure,

[0022] 1. Release paper; 2. Waterproof layer; 3. Light-reflecting and color-blocking layer; 4. Light-absorbing layer; 5. Black light-absorbing fabric. DETAILED DESCRIPTION

[0023] To better understand the purpose, technical solutions, and technical effects of the present invention, the present invention is further explained below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. It should also be noted that the embodiments described below are intended only to illustrate the present invention and are not intended to limit the present invention.

[0024] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element; when an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0025] The indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is typically placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship commonly placed when the product of the application is in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0026] It should be noted that since the visible light, infrared and ultraviolet rays in the environment are far smaller than direct sunlight, even if the light-absorbing layer absorbs infrared or ultraviolet rays in the ambient light, the temperature of the fabric will not rise much. Compared with the temperature rise effect of vinyl fabric under direct sunlight, it can be ignored.

[0027] like Figure 1 and Figure 2As shown, a lightweight, thermally insulating and cooling fabric, suitable for use as umbrella fabric, tent fabric, sunshade curtains, and more, has a multi-layered structure, including a release paper 1 and multiple functional coatings sequentially applied thereto: a waterproof layer 2, a light-reflecting and opaque layer 3, and a light-absorbing layer 4. The waterproof layer 2 provides a waterproof effect on the fabric's exterior surface, the light-reflecting and opaque layer 3 reflects light, and the light-absorbing layer 4 absorbs ambient light. Because the light-absorbing layer 4 is a microporous vinyl layer, its black color increases its light absorption, and its microporous structure increases its surface area, further enhancing its light absorption capacity.

[0028] In addition to its reflective effect, the light-reflecting shading layer 3 also serves as a color blocking layer. Specifically, the light-reflecting shading layer 3 covers the black light-absorbing layer 4. The color of the light-absorbing layer 4 is blocked by the light-reflecting shading layer 3 and cannot penetrate to the outer surface of the fabric. The color expression of the outer surface of the fabric (i.e., the upper surface in the figure) depends on the color of the light-reflecting shading layer 3.

[0029] The process of applying multiple functional coatings on release paper 1 is as follows:

[0030] First, a transparent waterproof and anti-aging resin is coated on the release paper 1 to a thickness of 10 to 30 microns, for example, 10 microns, 12 microns, 15 microns, 18 microns, 20 microns, 22 microns, 24 microns, 26 microns, 30 microns, etc. Drying is required immediately after coating to prepare the light-reflecting, opaque layer 3. The waterproof layer 2 of this invention not only provides waterproofing but also enhances the aging resistance of the fabric surface. The waterproof and anti-aging resin can be a common epoxy resin. Furthermore, the waterproof layer 2 is a colorless, transparent waterproof film, allowing the color of the light-reflecting, opaque layer 3 to be directly visible through the waterproof layer 2.

[0031] A prepared polyurethane (PU) resin coating is then applied to the dried waterproof coating, and after drying, a light-reflecting opaque layer 3 is formed. As can be seen, the light-reflecting opaque layer 3 is a resin layer with a light-reflecting effect. Light-reflecting powder is incorporated into the resin layer material during preparation to achieve this effect. The light-reflecting powder is physically incorporated, without generating new chemical substances. The process is well-established and will not be described in detail here. The light-reflecting powder can be purchased from existing radiant cooling powders. In addition to the light-reflecting powder, colorant can also be incorporated into the light-reflecting opaque layer 3 during preparation of the resin coating material to impart color to the light-reflecting opaque layer 3. The colorant is typically a light-colored hue, such as pink, light green, light blue, light yellow, or white.

[0032] The thickness of the light-reflecting opaque layer 3 is generally 60 to 180 micrometers, for example, 60 micrometers, 70 micrometers, 80 micrometers, 95 micrometers, 120 micrometers, 150 micrometers, 160 micrometers, 180 micrometers, etc.

[0033] Finally, a prepared black resin is coated onto the dried light-reflecting opaque layer 3, forming a black resin layer that serves as the fabric's light-absorbing layer 4. During the preparation process, microporous nano-black powder and a dispersant are added to the polyurethane (PU) resin to create a black resin with a microporous structure. This forms a light-absorbing layer 4 with a microporous structure on the light-reflecting opaque layer 3. The thickness of the light-absorbing layer 4 ranges from 60 to 180 microns, for example, 60, 65, 75, 90, 110, 130, 140, 150, or 180 microns.

[0034] Through the above three steps, the process coating of the release paper coated with three functional coatings can be completed. Finally, the light-absorbing layer 4 of the release paper 1 is laminated with the black light-absorbing fabric 5. After drying, the release paper 1 is removed and used to make an umbrella cloth or other sunshade products. At this time, the umbrella cloth has, from the outside to the inside: a waterproof layer 2, a light-reflecting color-blocking layer 3, a light-absorbing layer 4 and a black light-absorbing fabric 5 layer.

[0035] Among them, the black light-absorbing fabric 5 can be made of 20D / 420T polyester pongee black fabric. 20D / 420T is a common specification of fabric. 20D means that the diameter of the fiber is very fine and is usually used for light and thin fabrics; 420T means that the fabric is very dense and has high wear resistance and strength.

[0036] In summary, the composite fabric adopts a structure in which a release paper process coating is bonded to a black light-absorbing fabric 5, and the release paper 1 is removed after drying and fixing. During the composite fabric forming process, the black light-absorbing fabric 5 is only dried once and does not participate in the drying and fixing process of each functional coating, so the resulting fabric is softer. In addition, the black light-absorbing fabric 5, as the outermost layer of the bottom surface of the fabric, can protect the light-absorbing layer 4, and there is no need to apply an additional anti-wear layer, so the resulting fabric will be light. When the soft composite fabric structure of the present invention is used on sunshade and sunscreen products, the light-reflecting color-blocking layer 3 can reflect direct sunlight to reduce the surface temperature of the sunscreen fabric; the light-absorbing layer 4 and the black light-absorbing fabric 5 can also jointly absorb ultraviolet rays or infrared rays in the environment, effectively preventing the bottom layer of the fabric from reflecting light to the human body under the sunshade and sunscreen product, so that the soft composite fabric structure has a heat-insulating and cooling effect.

[0037] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A soft heat-insulating and cooling fabric, characterized in that: It includes a release paper coating and a black light-absorbing fabric that are bonded together, and the release paper coating contains multiple functional coatings, which include a waterproof layer, a light-reflecting opaque layer and a light-absorbing layer. The light-absorbing layer and the black light-absorbing fabric are used to absorb ambient light to prevent ultraviolet reflection. The light-reflecting opaque layer is used to reflect light and to block the color of the light-absorbing layer to prevent black from penetrating into the fabric surface.

2. A soft heat-insulating and cooling fabric according to claim 1, characterized in that: The thickness of the waterproof layer is 10 to 30 microns.

3. A soft heat-insulating and cooling fabric according to claim 1 or 2, characterized in that: The waterproof layer is a transparent epoxy resin film.

4. The soft heat-insulating and cooling fabric according to claim 1, characterized in that: The thickness of the light-reflecting color-shielding layer is 60 to 180 microns.

5. The soft heat-insulating and cooling fabric according to claim 1, characterized in that: The light-reflecting color-shielding layer is a resin layer with light-reflecting effect.

6. The soft heat-insulating and cooling fabric according to claim 5, characterized in that: The resin layer is filled with color powder and light reflecting powder.

7. The soft heat-insulating and cooling fabric according to claim 6, characterized in that: The light reflecting powder is radiation cooling powder.

8. The soft heat-insulating and cooling fabric according to claim 1, characterized in that: The material of the light absorbing layer is black resin with a microporous structure.

9. The soft heat-insulating and cooling fabric according to claim 1, characterized in that: The thickness of the light absorbing layer is 60 to 180 microns.

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