Sunscreen fabrics, their preparation methods, and apparel

Abstract

This invention discloses a sun-protective fabric, its preparation method, and related apparel. The sun-protective fabric is woven from circular cross-section yarns and irregularly shaped cross-section yarns. The circular cross-section yarns contain 1wt%~2.5wt% titanium dioxide, while the irregularly shaped cross-section yarns contain 3wt%~6wt% titanium dioxide. This sun-protective fabric is obtained by alternating weaves of two yarns with different cross-sections and different titanium dioxide contents. The circular cross-section yarns provide better cooling and a softer feel, while the irregularly shaped cross-section yarns, such as those in a straight line, enhance the fabric's coverage, UV protection, and heat-blocking properties. This sun-protective fabric effectively combines the characteristics of two different cross-section yarns, utilizing the differences in their properties to achieve an optimized balance between cooling, UV protection, and heat blocking, providing consumers with a better wearing experience.

Description

Technical Field

[0001] This application relates to the fields of textile and apparel technology, and in particular to a sun-protective fabric, its preparation method, and apparel. Background Technology

[0002] Currently, the main raw material used in knitted sun-protective clothing fabrics on the market is nylon. Nylon has either a circular or flat irregular cross-section and is solid-colored after dyeing. The primary function of knitted sun-protective clothing fabrics is to provide the user with a cooling sensation and UV protection. However, existing knitted sun-protective clothing fabrics cannot simultaneously possess both good softness and cooling effect and good UV protection. For example, the darker the surface color of the fabric, the better the sun protection effect, but the more heat the fabric absorbs. Especially when worn in summer, dark-colored fabrics need to absorb a lot of heat to achieve good UV protection, thus failing to provide a good cooling effect. Summary of the Invention

[0003] Therefore, it is necessary to provide a sun-protective fabric. The sun-protective fabric of the present invention can achieve an optimized balance between cooling sensation, UV protection, and heat shielding, improving the fabric's UV protection performance while enhancing its cooling sensation and softness, thus providing consumers with a better wearing experience.

[0004] One embodiment of this application provides a sun-protective fabric.

[0005] A sun-protective fabric is woven from circular cross-section yarn and irregular cross-section yarn. The titanium dioxide content in the circular cross-section yarn is 1wt%~2.5wt%, and the titanium dioxide content in the irregular cross-section yarn is 3wt%~6wt%.

[0006] In some embodiments, the shape of the irregular cross-section yarn includes at least one non-circular shape.

[0007] In some embodiments, the shape of the irregular cross-section yarn includes at least one of cloud shape, straight line shape, triangle shape, square shape, polygon shape, and peanut shape.

[0008] In some embodiments, the yarn specification of the circular cross-section yarn is 40D~100D.

[0009] In some embodiments, the yarn specification of the irregular cross-section yarn is 30D~70D.

[0010] In some embodiments, the circular cross-section yarn and the irregular cross-section yarn are dyed yarns, wherein the dyeing depth of the circular cross-section yarn is greater than the dyeing depth of the irregular cross-section yarn.

[0011] In some embodiments, the fibers of the circular cross-section yarn include nylon, polyester, or polyester.

[0012] In some embodiments, the fibers of the irregularly shaped cross-section yarn include nylon, polyester, or polyester.

[0013] In some embodiments, when the sun-protective fabric is woven, the circular cross-section yarn and the irregular cross-section yarn are interlaced, and the ratio of the number of the circular cross-section yarn to the number of the irregular cross-section yarn is 1:1 to 5:1.

[0014] In some embodiments, when the sun-protective fabric is woven, the circular cross-section yarn and the irregular cross-section yarn are woven in a double-layer method, and the ratio of the number of the circular cross-section yarn to the number of the irregular cross-section yarn in the bottom layer of the sun-protective fabric is 1:1 to 5:1.

[0015] One embodiment of this application also provides a method for preparing a sun-protective fabric.

[0016] A method for preparing a sun-protective fabric includes the following steps:

[0017] A sun-protective fabric is formed by weaving circular cross-section yarns and irregular cross-section yarns, wherein the titanium dioxide content in the circular cross-section yarns is 1wt%~2.5wt%, and the titanium dioxide content in the irregular cross-section yarns is 3wt%~6wt%.

[0018] During weaving, the circular cross-section yarn and the irregular cross-section yarn are interlaced, and the ratio of the number of the circular cross-section yarn to the number of the irregular cross-section yarn is 1:1 to 5:1; or, the circular cross-section yarn and the irregular cross-section yarn are woven in a double layer, and the ratio of the number of the circular cross-section yarn to the number of the irregular cross-section yarn in the bottom layer of the sun protection fabric is 1:1 to 5:1.

[0019] A garment, characterized in that at least a portion of the garment is made of the sun-protective fabric described above or the sun-protective fabric prepared by the above preparation method.

[0020] In some embodiments, the garment is made entirely of the aforementioned sun-protective fabric.

[0021] In some embodiments, the apparel includes clothing, shoes, hats, gloves, masks, sleeves, and face shields.

[0022] The sun-protective fabric of this application is woven using two yarns with different cross-sections and different titanium dioxide contents, woven alternately. The yarns with circular cross-sections provide a better cooling effect and a softer feel, while the yarns with irregular cross-sections, such as straight lines, enhance the fabric's coverage, UV protection, and heat-blocking properties. This sun-protective fabric effectively combines the characteristics of two yarns with different cross-sectional shapes, utilizing the differences in their respective properties to achieve an optimized balance between cooling, UV protection, and heat blocking, providing consumers with a better wearing experience.

[0023] In summary, the sun-protective fabric obtained by alternating weaving two yarns with different cross-sections and different titanium dioxide contents, as described in this invention, has the following beneficial effects:

[0024] (1) The titanium dioxide content of the yarn with a circular cross section is low, while the titanium dioxide content of the yarn with an irregular cross section is high. By taking advantage of the low dyeing rate of the yarn with a high titanium dioxide content in the irregular cross section during the dyeing process, the amount of dyeing is controlled, so that the yarn with a circular cross section is dyed dark and the yarn with an irregular cross section is dyed light, resulting in a striped double-sided color effect.

[0025] (2) By utilizing the characteristics of yarn with irregular cross-section that absorbs less heat and has a high titanium dioxide content that can improve the heat shielding effect, the sun protection fabric can achieve a better heat shielding and cooling effect.

[0026] (3) The yarn with a circular cross section is dark in color, which can better absorb ultraviolet rays to improve the UV resistance. At the same time, the yarn with a circular cross section is mainly skin-friendly, which can effectively improve the cooling effect of the sun protection fabric.

[0027] (4) The combination of circular cross-section yarn and irregular cross-section yarn, along with moisture absorption and drying treatment, achieves better moisture absorption and quick-drying effect. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0030] Figure 1 This is a schematic cross-sectional view of the sun protection fabric structure described in Embodiment 1 of the present invention.

[0031] Explanation of reference numerals in the attached figures

[0032] 10. Sunscreen fabric; 100. Circular cross-section yarn; 200. Irregular cross-section yarn. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] In the description of this invention, 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," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In this document, "optionally," "optionally," and "optional" mean that something is optional, that is, it is selected from either "with" or "without." If multiple "options" appear in a technical solution, unless otherwise specified and there are no contradictions or mutual constraints, each "option" is independent. In this application, descriptions such as "optionally contains" and "optionally includes" indicate "contains or does not contain."

[0038] In this invention, unless otherwise stated, the sum of the parts of each component in the composition may be 100 parts by weight. Unless otherwise specified, the percentages (including weight percentages) in this invention are based on the total weight of the composition, and "wt%" in this document refers to mass percentage.

[0039] In this application, when numerical intervals (i.e., numerical ranges) are mentioned, unless otherwise specified, the distribution of selectable numerical values ​​within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] This application provides a sun-protective fabric 10 to solve the problem that existing knitted sun-protective clothing fabrics cannot simultaneously possess both good cooling effect and good UV protection function. The sun-protective fabric 10 will be described below with reference to the accompanying drawings.

[0042] The sun-protective fabric 10 provided in this application embodiment is exemplary; please refer to [link to example]. Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the sun-protective fabric 10 provided in an embodiment of this application. The sun-protective fabric 10 of this application can be used to prepare clothing that has both good cooling effect and good UV protection function.

[0043] To more clearly illustrate the structure of the sun protection fabric 10, the following description of the sun protection fabric 10 will be provided in conjunction with the accompanying drawings.

[0044] For example, please refer to Figure 1 As shown, a sun-protective fabric 10 is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 1wt%~2.5wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 3wt%~6wt%.

[0045] The sun-protective fabric 10 of this application is woven using two yarns with different cross-sections and different titanium dioxide contents alternately. The yarns with circular cross-sections in the sun-protective fabric 10 provide a better cooling effect and a softer feel, while the yarns with irregular cross-sections, such as straight lines, enhance the fabric's coverage, UV protection, and heat-blocking properties. The sun-protective fabric 10 of this application effectively combines the characteristics of two yarns with different cross-sectional shapes, utilizing the differences in their respective properties to achieve an optimized balance between cooling, UV protection, and heat blocking, providing consumers with a better wearing experience.

[0046] In some embodiments, the titanium dioxide content in the circular cross-section yarn 100 includes, but is not limited to: 1 wt%, 1.3 wt%, 1.5 wt%, 1.8 wt%, 2 wt%, 2.5 wt%, or any range between the two.

[0047] In some embodiments, the titanium dioxide content in the irregular cross-section yarn 200 includes, but is not limited to: 3wt%, 3.5wt%, 4wt%, 4.5wt%, 5wt%, 5.5wt%, 6wt%, or any range between the two for the foregoing.

[0048] In some embodiments, the shape of the irregular cross-section yarn 200 includes at least one non-circular shape. It should be noted that the shape of the irregular cross-section yarn 200 mentioned above refers to the shape of its radial cross-section. Please refer to [link to relevant documentation]. Figure 1 As shown, Figure 1 The angles shown represent the shapes of the circular cross-section yarn 100 and the irregular cross-section yarn 200. Figure 1 In the middle, the circular cross-section yarn 100 is circular in shape, and the irregular cross-section yarn 200 is approximately in the shape of a straight line.

[0049] In some embodiments, the shape of the irregular cross-section yarn 200 includes at least one of cloud shape, straight line shape, triangle shape, square shape, polygon shape, and peanut shape.

[0050] Preferably, in a specific example, the shape of the irregular cross-section yarn 200 is approximately I-shaped.

[0051] In a specific example, please refer to Figure 1 As shown, the irregular cross-section yarn 200 has a flat structure, which is approximately a straight line.

[0052] It is easy to understand that in other examples, the shape of the irregular cross-section yarn 200 can also be other irregular shapes, as long as the irregular cross-section yarn 200 can improve the coverage.

[0053] In some embodiments, the yarn specification of the circular cross-section yarn 100 is 40D to 100D. In some embodiments, the yarn specification of the circular cross-section yarn 100 includes, but is not limited to, 40D, 50D, 60D, 70D, 80D, 90D, 100D, or any range between the foregoing.

[0054] In some embodiments, the yarn specification of the irregular cross-section yarn 200 is 30D to 70D. In some embodiments, the yarn specification of the irregular cross-section yarn 200 includes, but is not limited to, 30D, 40D, 50D, 60D, 70D, or any range between the foregoing.

[0055] In some embodiments, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with dye, wherein the dyeing depth of the circular cross-section yarn 100 is greater than the dyeing depth of the irregular cross-section yarn 200.

[0056] In some embodiments, the dye is acid blue dye. The acid blue dye used in this application is an industrial dye widely used in textile dyeing, especially suitable for dyeing protein fibers such as wool, silk, and nylon. Acid blue dye is characterized by the presence of one or more acidic groups, such as sulfonic acid groups (-SO3H), in its molecular structure, which allows it to dissolve in water and chemically bond with fibers in an acidic environment, thereby achieving dyeing. The characteristics of acid blue dye include at least: (1) Water solubility: Acid blue dye has good water solubility and is easy to prepare into dyeing solutions. (2) Bright color: The dyed fabric has bright color and a wide color spectrum. (3) Color fastness: Fabrics dyed with acid blue dye usually have good light, washing, and rubbing fastness. (4) Scope of application: Suitable for fibers such as wool, silk, nylon, and nylon. When using acid blue dye to dye wool and silk, because these natural protein fibers are positively charged, they can form stable chemical bonds with negatively charged acid dyes under acidic conditions, so acid blue dye is very suitable for dyeing such materials. When dyeing nylon and wool, although nylon and wool are not protein fibers, their dyeing properties are similar to those of wool, and they are also suitable for using acid blue dye.

[0057] In some embodiments, dyeing is preferably done with dyes that are sensitive to titanium dioxide, minimizing the dyeing of irregularly shaped cross-section yarns, increasing the color difference between irregularly shaped cross-section yarns and circular cross-section yarns 100, making the stripes of the sun-protective fabric 10 more obvious, reducing the absorption of light by irregularly shaped cross-section yarns, and improving the heat-blocking performance of the sun-protective fabric 10.

[0058] In some embodiments, the fibers of the circular cross-section yarn 100 include nylon, polyester, or nylon.

[0059] In some embodiments, the fibers of the irregular cross-section yarn 200 include nylon, polyester, or polyester.

[0060] In some embodiments, the circular cross-section yarn 100 and the irregular cross-section yarn 200 adopt different yarn combinations, such as the circular cross-section yarn 100 and the irregular cross-section yarn 200 adopting a combination of polyester and nylon, respectively, or the circular cross-section yarn 100 and the irregular cross-section yarn 200 adopting a combination of nylons with different properties, such as the circular cross-section yarn 100 and the irregular cross-section yarn 200 adopting nylon N66 and nylon N6, respectively.

[0061] In some embodiments, during the weaving of the sun-protective fabric 10, the circular cross-section yarns 100 and the irregular cross-section yarns 200 are interlaced, and the ratio of the number of circular cross-section yarns 100 to the number of irregular cross-section yarns 200 is 1:1 to 5:1. In some embodiments, the value of the ratio of the number of circular cross-section yarns 100 to the number of irregular cross-section yarns 200 during interlacing includes, but is not limited to: 1:1, 2:1, 3:1, 4:1, 5:1, or any range between the foregoing.

[0062] In some embodiments, the sun-protective fabric 10 is woven using a double-layer weave with circular cross-section yarns 100 and irregular cross-section yarns 200. The ratio of circular cross-section yarns 100 to irregular cross-section yarns 200 in the bottom layer of the sun-protective fabric 10 is 1:1 to 5:1. In some embodiments, the ratio of circular cross-section yarns 100 to irregular cross-section yarns 200 in the double-layer weave includes, but is not limited to, 1:1, 2:1, 3:1, 4:1, 5:1, or any range between the two aforementioned.

[0063] An embodiment of this application also provides a method for preparing a sun-protective fabric 10.

[0064] It should be noted that, in this application, unless otherwise stated, the reaction steps may be performed in the order described herein or not. For example, other steps may be included between reaction steps, and the order of reaction steps may be appropriately interchanged. This is something that those skilled in the art can determine based on conventional knowledge and experience. Preferably, the reaction methods described herein are performed sequentially.

[0065] A method for preparing a sun-protective fabric 10 includes the following steps:

[0066] A sun-protective fabric 10 is formed by weaving circular cross-section yarn 100 and irregular cross-section yarn 200, wherein the titanium dioxide content in the circular cross-section yarn 100 is 1wt%~2.5wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 3wt%~6wt%.

[0067] During weaving, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are interlaced, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 is 1:1 to 5:1; or, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are woven in a double layer, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 in the bottom layer of the sun protection fabric 10 is 1:1 to 5:1.

[0068] For example, in the method for preparing sun-protective fabric 10, during the weaving of sun-protective fabric 10, circular cross-section yarns 100 and irregular cross-section yarns 200 are interlaced, and the ratio of the number of circular cross-section yarns 100 to irregular cross-section yarns 200 is 1:1 to 5:1. In some embodiments, during the interlacing, the value of the ratio of the number of circular cross-section yarns 100 to irregular cross-section yarns 200 includes, but is not limited to, 1:1, 2:1, 3:1, 4:1, 5:1, or any range between the foregoing. During the weaving of sun-protective fabric 10, the circular cross-section yarns 100 and irregular cross-section yarns 200 are woven in a double-layer method, and the ratio of the number of circular cross-section yarns 100 to irregular cross-section yarns 200 in the bottom layer of sun-protective fabric 10 is 1:1 to 5:1. In some embodiments, when using a double-layer weaving method, the ratio of the number of circular cross-section yarns 100 to the number of irregular cross-section yarns 200 includes, but is not limited to, 1:1, 2:1, 3:1, 4:1, 5:1 or any range between the two aforementioned.

[0069] A garment, wherein at least a portion of the garment is made of the sun-protective fabric 10 described above or the sun-protective fabric 10 prepared by the above preparation method.

[0070] In some embodiments, the entire garment is made of the aforementioned sun-protective fabric 10.

[0071] In some embodiments, the clothing includes clothes, shoes, hats, gloves, masks, sleeves, and face shields.

[0072] Example 1

[0073] This embodiment provides a sun-protective fabric 10.

[0074] Please see Figure 1As shown, the sun protection fabric 10 of this embodiment is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 1 wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 4.2 wt%. The shape of the irregular cross-section yarn 200 includes a straight line.

[0075] The yarn specification for the circular cross-section yarn 100 is 50D nylon. The yarn specification for the irregular cross-section yarn 200 is 40D nylon.

[0076] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with acid blue dye. The dyeing depth of the circular cross-section yarn 100 is greater than that of the irregular cross-section yarn 200. After dyeing with acid blue dye, the two sets of yarns show a significant difference in color depth.

[0077] When the sun protection fabric 10 is woven, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are woven in a double layer. The ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 in the bottom layer of the sun protection fabric 10 is 2:1.

[0078] Among the 10 types of sun-protective fabric, the outer layer of yarn is lighter in color to better reflect sunlight and achieve a sun-shading and cooling effect; the inner layer of yarn is softer and cooler to the skin, while the darker color better prevents UV light from penetrating and protects the skin.

[0079] Example 2

[0080] This embodiment provides a sun-protective fabric 10.

[0081] Please see Figure 1 As shown, the sun protection fabric 10 of this embodiment is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 1 wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 3 wt%. The shape of the irregular cross-section yarn 200 includes a straight line.

[0082] The yarn specification for circular cross-section yarn 100 is 40D. The yarn specification for irregular cross-section yarn 200 is 30D.

[0083] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with acid blue dye. The dyeing depth of the circular cross-section yarn 100 is greater than that of the irregular cross-section yarn 200.

[0084] The circular cross-section yarn 100 contains polyester fibers. The irregular cross-section yarn 200 contains nylon fibers.

[0085] When the sun protection fabric 10 is woven, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are interlaced, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 is 1:5.

[0086] Example 3

[0087] This embodiment provides a sun-protective fabric 10.

[0088] The sun protection fabric 10 of this embodiment is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 2.5 wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 6 wt%. The irregular cross-section yarn 200 has a triangular shape.

[0089] The yarn specification for circular cross-section yarn 100 is 100D. The yarn specification for irregular cross-section yarn 200 is 70D.

[0090] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with acid blue dye. The dyeing depth of the circular cross-section yarn 100 is greater than that of the irregular cross-section yarn 200.

[0091] The circular cross-section yarn 100 contains polyester fibers. The irregular cross-section yarn 200 contains nylon fibers.

[0092] In some embodiments, when the sun protection fabric 10 is woven, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are woven in a double layer, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 in the bottom layer of the sun protection fabric 10 is 1:1.

[0093] Example 4

[0094] This embodiment provides a sun-protective fabric 10.

[0095] The sun protection fabric 10 of this embodiment is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 2wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 5wt%. The shape of the irregular cross-section yarn 200 includes triangles.

[0096] The yarn specification for circular cross-section yarn 100 is 60D. The yarn specification for irregular cross-section yarn 200 is 50D.

[0097] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with acid blue dye. The dyeing depth of the circular cross-section yarn 100 is greater than that of the irregular cross-section yarn 200.

[0098] The circular cross-section yarn 100 contains polyester fibers. The irregular cross-section yarn 200 contains nylon fibers.

[0099] In some embodiments, when the sun protection fabric 10 is woven, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are woven in a double layer, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 in the bottom layer of the sun protection fabric 10 is 1:5.

[0100] Example 5

[0101] This embodiment provides a sun-protective fabric 10.

[0102] Please see Figure 1 As shown, the sun protection fabric 10 of this embodiment is woven from circular cross-section yarn 100 and irregular cross-section yarn 200. The titanium dioxide content in the circular cross-section yarn 100 is 2wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is 4wt%. The shape of the irregular cross-section yarn 200 includes a straight line.

[0103] The yarn specification for circular cross-section yarn 100 is 60D. The yarn specification for irregular cross-section yarn 200 is 40D.

[0104] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are dyed yarns after being dyed with acid blue dye. The dyeing depth of the circular cross-section yarn 100 is greater than that of the irregular cross-section yarn 200.

[0105] The circular cross-section yarn 100 and the irregular cross-section yarn 200 are N66 nylon and N6 nylon, respectively.

[0106] When the sun protection fabric 10 is woven, the circular cross-section yarn 100 and the irregular cross-section yarn 200 are interlaced, and the ratio of the number of circular cross-section yarn 100 to the number of irregular cross-section yarn 200 is 3:1.

[0107] Comparative Example 1

[0108] This comparative example provides a sun-protective fabric.

[0109] The sun protection fabric of this comparative example is basically the same as that of Example 1, except that: in Comparative Example 1, there is no irregular cross-section yarn, and the original irregular cross-section yarn is replaced by round cross-section yarn.

[0110] Comparative Example 2

[0111] This comparative example provides a sun-protective fabric.

[0112] The sun protection fabric of this comparative example is basically the same as that of Example 2, except that: in Comparative Example 2, the titanium dioxide content in the circular cross-section yarn is 1wt%, and the titanium dioxide content in the irregular cross-section yarn is 1wt%.

[0113] Comparative Example 3

[0114] This comparative example provides a sun-protective fabric.

[0115] The sun protection fabric of this comparative example is basically the same as that of Example 2, except that: in Comparative Example 2, the titanium dioxide content in the circular cross-section yarn is 1wt%, and the titanium dioxide content in the irregular cross-section yarn is 8wt%.

[0116] Comparative Example 4

[0117] This comparative example provides a sun-protective fabric.

[0118] The sun protection fabric of this comparative example is basically the same as that of Example 3, except that in Comparative Example 3, the ratio of the number of circular cross-section yarns to irregular cross-section yarns in the bottom layer of the sun protection fabric is 6:1.

[0119] Comparative Example 5

[0120] This comparative example provides a sun-protective fabric.

[0121] The sun protection fabric of this comparative example is basically the same as that of Example 4, except that: in Comparative Example 4, the titanium dioxide content in the circular cross-section yarn is 3.5wt% and the titanium dioxide content in the irregular cross-section yarn is 3.5wt%.

[0122] Comparative Example 6

[0123] This comparative example provides a sun-protective fabric.

[0124] The sun protection fabric of this comparative example is basically the same as that of Example 4, except that: in Comparative Example 4, the titanium dioxide content in the circular cross-section yarn is 0.5wt% and the titanium dioxide content in the irregular cross-section yarn is 5wt%.

[0125] The performance of the sunscreen fabric 10 in Examples 1-5 and Comparative Examples 1-6 was tested, and the test results are shown in Table 1.

[0126] Table 1

[0127]

[0128] As shown in Table 1, Comparative Example 1, which did not contain irregularly shaped cross-section yarns, saw a significant decrease in UV resistance and heat shielding rate after replacing all the original irregularly shaped cross-section yarns with round cross-section yarns. In Comparative Example 2, when the titanium dioxide content in the irregularly shaped cross-section yarns was 1 wt%, the UV resistance and heat shielding rate of the sunscreen fabric were worse than those of Example 2. In Comparative Example 3, when the titanium dioxide content in the irregularly shaped cross-section yarns was excessively high at 8 wt%, although the UV resistance and heat shielding rate were improved, yarn breakage was easily caused during yarn preparation, leading to fabric breakage during actual production. Therefore, the titanium dioxide content in the irregularly shaped cross-section yarns should not be excessive. In Comparative Example 4, when the ratio of round cross-section yarns to irregularly shaped cross-section yarns in the bottom layer of the sunscreen fabric was 6:1, the amount of irregularly shaped cross-section yarns resulted in worse UV resistance and heat shielding rate compared to Example 3. In Comparative Example 5, the low titanium dioxide content in the round cross-section yarns resulted in worse UV resistance and heat shielding rate compared to Example 4. In Comparative Example 6, the titanium dioxide content in the circular cross-section yarn was relatively high. Although this improved UV resistance and heat shielding, it also made the yarn prone to breakage during preparation, leading to fabric breakage in actual production. Therefore, the titanium dioxide content in the irregular cross-section yarn should not be excessive. Thus, in this application, the titanium dioxide content in the circular cross-section yarn 100 is preferably 1wt%~2.5wt%, and the titanium dioxide content in the irregular cross-section yarn 200 is preferably 3wt%~6wt%.

[0129] In summary, the sun-protective fabric 10 obtained by alternating weaving two yarns with different cross-sections and different titanium dioxide contents, as described in this invention, has the following beneficial effects:

[0130] (1) The titanium dioxide content of the yarn with a circular cross section is low, while the titanium dioxide content of the yarn with an irregular cross section is high. By taking advantage of the low dyeing rate of the yarn with a high titanium dioxide content in the irregular cross section during the dyeing process, the amount of dyeing is controlled, so that the yarn with a circular cross section is dyed dark and the yarn with an irregular cross section is dyed light, resulting in a striped double-sided color effect.

[0131] (2) By utilizing the characteristics of yarn with irregular cross section that absorbs less heat and has a high titanium dioxide content that can improve the heat shielding effect, the sun protection fabric 10 achieves a better heat shielding and cooling effect.

[0132] (3) The yarn with a circular cross section is dark in color, which can better absorb ultraviolet rays to improve the UV resistance. At the same time, the yarn with a circular cross section is mainly skin-friendly, which can effectively improve the cooling effect of the sun protection fabric 10.

[0133] (4) The combination of circular cross-section yarn and irregular cross-section yarn, along with moisture absorption and drying treatment, achieves better moisture absorption and quick-drying effect.

[0134] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0135] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0136] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A sun-protective fabric, characterized in that, The sunscreen fabric is knitted by round cross-section yarns and shaped cross-section yarns, the titanium dioxide content of the round cross-section yarns is 1wt%-2.5wt%, the titanium dioxide content of the shaped cross-section yarns is 3wt%-6wt%, the round cross-section yarns and the shaped cross-section yarns are dyed yarns after dyeing, and the dyeing depth of the round cross-section yarns is greater than that of the shaped cross-section yarns.

2. The sun-protective fabric of claim 1, wherein, The shape of the shaped cross-section yarns comprises at least one of non-circular shapes.

3. The sun-protective fabric of claim 1, wherein, The sunscreen fabric further satisfies at least one of the following conditions: (1) the yarn specification of the round cross-section yarns is 40D-100D; (2) the yarn specification of the shaped cross-section yarns is 30D-70D.

4. The sun-protective fabric according to any one of claims 1 to 3, wherein The fiber of the round cross-section yarns comprises nylon, nylon or polyester.

5. The sun-protective fabric according to any one of claims 1 to 3, wherein The fiber of the shaped cross-section yarns comprises nylon, nylon or polyester.

6. The sun-protective fabric according to any one of claims 1 to 3, wherein When the sunscreen fabric is knitted, the round cross-section yarns and the shaped cross-section yarns are spaced interwoven, and the quantity ratio of the round cross-section yarns to the shaped cross-section yarns is 1:1-5:

1.

7. The sun-protective fabric according to any one of claims 1 to 3, wherein When the sunscreen fabric is knitted, the round cross-section yarns and the shaped cross-section yarns are double-layer woven, and the quantity ratio of the round cross-section yarns to the shaped cross-section yarns in the bottom layer of the sunscreen fabric is 1:1-5:

1.

8. A method of making a sun-protective fabric, characterized in that, The method comprises the following steps: The sunscreen fabric is knitted by round cross-section yarns and shaped cross-section yarns, the titanium dioxide content of the round cross-section yarns is 1wt%-2.5wt%, the titanium dioxide content of the shaped cross-section yarns is 3wt%-6wt%, the round cross-section yarns and the shaped cross-section yarns are dyed yarns after dyeing, and the dyeing depth of the round cross-section yarns is greater than that of the shaped cross-section yarns; When the sunscreen fabric is knitted, the round cross-section yarns and the shaped cross-section yarns are spaced interwoven, and the quantity ratio of the round cross-section yarns to the shaped cross-section yarns is 1:1-5:1; or, the round cross-section yarns and the shaped cross-section yarns are double-layer woven, and the quantity ratio of the round cross-section yarns to the shaped cross-section yarns in the bottom layer of the sunscreen fabric is 1:1-5:

1.

9. A garment, characterized in that At least part of the clothing is made of the sunscreen fabric of any one of claims 1-7 or the sunscreen fabric prepared by the preparation method of claim 8.

10. The garment of claim 9, wherein, The clothing further satisfies at least one of the following conditions: (1) the clothing is made of the sunscreen fabric of any one of claims 1-7; (2) the clothing comprises clothes, shoes, hats, gloves, masks, sleeves and face masks.

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