Functional fabric suitable for outdoor sports and preparation method thereof

Abstract

The invention discloses a functional fabric suitable for outdoor sports and a preparation method thereof, and the method comprises the following steps: step 1, preparing a base cloth which is a textile fabric made of a porous flexible sheet material; step 2, preparing color paste, wherein the color paste is prepared from the following raw materials in parts by weight: 10-40 parts of acrylic resin, 10-30 parts of nano titanium dioxide, 0-20 parts and more than 0 part of aliphatic hydrocarbon, 0-50 parts and more than 0 part of a water repellent agent, 0-3 parts and more than 0 part of a cross-linking agent, 0-2 parts and more than 0 part of a thickening agent, 0-5 parts and more than 0 part of pigment dyeing pigment and the balance of water; step 3, treating the base cloth in a single-sided finishing manner, so that the color paste covers the surface of the base cloth, and a part of the color paste permeates into the base cloth and is distributed on the fiber surface in the base cloth; and 4, baking to solidify the color paste, thereby completing the preparation. The nano titanium dioxide particles are distributed on the surfaces of the fibers and the fabric to form unified and wide diffuse reflection so as to offset or weaken the refractive index difference of dry cloth and wet cloth caused by water, so that sweat marks are eliminated or weakened.

Description

Technical Field

[0001] The invention relates to a functional fabric, in particular to a functional fabric suitable for outdoor sports and a preparation method thereof. Background Art

[0002] Outdoor sports are a type of life scene that changes frequently. People are usually exposed to the sun during outdoor sports, sweating and unable to change clothes or take a shower in time. Therefore, consumers particularly need a functional fabric that can not only effectively resist ultraviolet rays, but also reduce sweat marks and sweat odor after sweating.

[0003] The "sweat-free" function of fabrics, also known as the "sweat-free" function, means that the fabric can effectively prevent the generation and penetration of sweat during use, keeping the fabric clean and dry. This is an important functional property and is very practical in daily life. The sweat-free function is an important selling point for many sportswear, work clothes, underwear and other products, and is widely favored by consumers. With the continuous advancement of material technology and processing technology, this functional fabric will surely be more widely used in the future. From the perspective of patent applications, sweat-free fabrics have indeed shown a relatively active development trend in recent years.

[0004] Chinese patent application, CN202310528760.9, sweat-free breathable cotton and its processing method discloses sweat-free breathable cotton and its processing method, the sweat-free breathable cotton includes a hydrophilic layer, a buffer layer and a waterproof layer, the hydrophilic layer includes super matte recycled polyester and moisture wicking softener, and the waterproof layer includes pure cotton yarn and bio-based waterproofing agent. The method includes: a. Processing to obtain grey cloth fabric; b. Baking and cross-linking the grey cloth fabric; c. Singeing the front side of the predetermined grey cloth fabric; d. Degreasing and washing the singed fabric; e. Dehydrating, opening and drying the fabric in turn; f. Fabric shaping treatment. The present invention can realize two diametrically opposite composite functions on the same piece of fabric, namely, the outer layer is water-repellent, and the inner layer is moisture-absorbent and breathable, and does not affect the appearance, feel and breathability of the fabric, meeting the wide range of use needs of users.

[0005] Chinese patent application, CN202221091137.9, a moisture-absorbing and sweat-resistant fabric discloses a moisture-absorbing and sweat-resistant fabric having a front waterproof and breathable layer and a bottom moisture-absorbing layer from the outside to the inside, wherein the bottom moisture-absorbing layer is provided with a moisture-absorbing and anti-sticking coating facing away from the front waterproof and breathable layer, and the moisture-absorbing and anti-sticking coating is covered with a plurality of holes. The moisture-absorbing and sweat-resistant fabric in the embodiment of the utility model has the effects of good moisture absorption, quick drying, non-stickiness to the skin, and no sweat marks on the surface of the fabric when sweating.

[0006] Chinese patent CN201921782872.2, a seamless underwear that is molded to keep dry and manage odor, discloses a sweat-free waistband design, namely, "the waistband area includes a skin-contacting surface, an outer surface and an intermediate inner layer, the intermediate inner layer is located between the skin-contacting surface and the outer surface, wherein the skin-contacting surface and the outer surface are both hydrophobic surfaces, and the intermediate inner layer is a hydrophilic layer."

[0007] Therefore, in summary: the principle of sweat-free fabric is mainly based on its special moisture absorption and sweat resistance. This kind of fabric is usually divided into multiple layers from the outside to the inside. The outermost layer is a waterproof and breathable layer, which can prevent the absorption of water droplets and sweat and prevent the formation of water stains and sweat stains. The bottom surface is provided with a hygroscopic and anti-stick coating, which is covered with multiple holes. When the user sweats, the sweat can flow into the bottom surface through these holes and be absorbed by the hygroscopic layer on the bottom surface. The hygroscopic layer can quickly evaporate the sweat, thereby achieving the effect of moisture absorption and quick drying. At the same time, the surface of the hygroscopic and anti-stick coating is often not easy to adhere to the skin, so that it is not easy to form obvious sweat marks between the cloth and the skin (i.e., the clothing surface).

[0008] As mentioned above, the existing technologies all use waterproofing agents on the clothing surface of the fabric, but some extreme applications use waterproof membranes in the fabric. This can effectively reduce the transfer of sweat from the skin-contacting surface of the fabric to the clothing surface, and can reduce the generation of sweat marks, but due to the thickness of the fabric, a small amount of waterproofing agent often cannot effectively prevent sweat from reaching the clothing surface, and a large amount will greatly reduce the water absorption capacity of the fabric, making the wearer feel stuffy, wet, and sticky during use, which is very uncomfortable.

[0009] The structure of the sweat-free functional printed fabric is set to be two layers. The clothing surface is the outermost layer of the clothing exposed to the air when worn. Since the human body inevitably generates a lot of heat during exercise, a large amount of sweat will seep out of the skin surface, especially during strenuous exercise. If the sweat cannot be discharged quickly and immediately, it will give people a stuffy feeling and the clothes will stick to the skin due to sweat. At the same time, since sweat contains a large amount of inorganic salts and other chloride ions, lactic acid, urea and other ingredients, it causes unbearable odor and produces obvious sweat stains on the clothing surface after gradually drying, which is an indecent appearance. Summary of the invention

[0010] In order to solve the above technical problems, the present invention provides a functional fabric suitable for outdoor sports and a preparation method thereof.

[0011] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0012] A method for preparing a functional fabric suitable for outdoor sports comprises the following steps:

[0013] Step 1: prepare a base fabric, which is a textile fabric of a porous flexible sheet material;

[0014] Step 2, preparing a color paste, which is composed of the following raw materials in parts by weight: 10-40 parts of acrylic resin, 10-30 parts of nano titanium dioxide, 0-20 parts and greater than 0 of aliphatic hydrocarbon, 0-50 parts and greater than 0 of hydrophobic agent, 0-3 parts and greater than 0 of cross-linking agent, 0-2 parts and greater than 0 of thickener, 0-5 parts and greater than 0 of paint dyeing pigment, and the balance is water;

[0015] Step 3, treating the base fabric in a single-side finishing manner, so that the color paste covers the surface of the base fabric, and a portion of the color paste penetrates into the base fabric and is distributed on the fiber surface of the base fabric;

[0016] Step 4, baking to solidify the color paste to complete the preparation.

[0017] As a further improvement, the following conditions are met for the selection of the base fabric: according to the standard GB / T42698-2023 method A, the anti-see-through index of the white sample is greater than 0.80; according to the standard AATCC 201, the evaporation rate is greater than 1.0 ml / hr; according to the standard GB21655.1, the moisture absorption rate is less than 2S.

[0018] As a further improvement, the model of the acrylic resin is 9003-01-4; the model of the nano titanium dioxide is 13463-67-7; the model of the aliphatic hydrocarbon is 64742-49-0; the hydrophobic agent is α-[3,5-dimethyl-1-(2-methylpropyl)hexyl]-ω-hydroxypoly(oxy-1,2-ethyl) 60828-78-6; the crosslinking agent is aziridine; and the thickener is anionic polyacrylate.

[0019] As a further improvement, in step 3, when finishing on one side, flat screen printing, rotary screen printing or coating process is adopted.

[0020] As a further improvement, in step 4, baking is carried out at a temperature of 150-180° C. for 5-10 minutes.

[0021] As a further improvement, the average particle size of the nano titanium dioxide is less than 260 nm and greater than 0, and the pH value is 5-7.5.

[0022] As a further improvement, the base fabric is a knitted fabric or a woven fabric, and the unit weight of the fabric is >100 GSM.

[0023] As a further improvement, when the base fabric is combined with the color paste, the base fabric is first pre-dried at a temperature of 80-120°C.

[0024] A functional fabric suitable for outdoor sports comprises a base fabric, wherein the base fabric is woven from fibers, and the surface of the base fabric and the surfaces of the fibers in the base fabric are both molded and covered with nano titanium dioxide.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] Features: breathable, quick-drying, anti-ultraviolet sun protection, deodorizing, and sweat-free;

[0027] It uses a sufficient amount of nano titanium dioxide particles distributed on the surface of fibers and fabrics to form a uniform and extensive diffuse reflection to offset or weaken the refractive index difference caused by water between the dry part and the wet part, thereby eliminating or weakening sweat marks;

[0028] Improve the comfort experience of athletes during exercise. During exercise, sweat marks can be discharged in time without accumulating on the skin surface and the unsightly appearance of sweat stains on the clothing surface. It also adds antibacterial and deodorizing functions. It can be worn and enjoyed comfortably for more than 24 hours in sports fields, libraries, factories, office buildings, cafes, shopping malls, different means of transportation and other public scenes, avoiding the trouble of frequent changes of clothes in different scenes.

[0029] The moisture on the skin-contacting surface is transferred to the clothing surface. When the moisture seeps into the clothing, due to the printing process, the problem of local sweat marks can be avoided when the weather is hot or when sweating a lot during strenuous exercise. By adding a sufficient amount of nano-titanium dioxide, the visual interference effect of sweat marks can be eliminated and the appearance of marks can be improved. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0031] Example 1

[0032] A method for preparing a functional fabric suitable for outdoor sports comprises the following steps:

[0033] Step 1, base fabric selection: the base fabric is a textile fabric of porous flexible sheet material, and this fabric is 245 grams in weight. The preferred material is a fabric with polyester as the main material, which is suitable for elastic or non-elastic fabrics and meets the requirements according to the standard GB / T42698-2023 method A, and the anti-perspective index of the white sample is 0.85; according to the standard AATCC 201, its evaporation rate is 1.1ml / hr; according to the standard GB21655.1, its moisture absorption rate is 2 to 1.8S. Through the selection of the above indexes, it is ensured that the original fabric has a certain quick-drying ability and also has a certain perspective shielding. In theory, the fabric with a low anti-perspective index can achieve the effect of reducing sweat marks by increasing the amount of nano titanium dioxide used, but it will affect the feel and comfort of wearing. Therefore, in the present invention, the performance of the base fabric is limited, and the anti-perspective index is required to be greater than 0.80.

[0034] Step 2, color paste preparation:

[0035] The color paste is composed of the following raw materials in parts by weight:

[0036]

[0037]

[0038] The hydrophobic agent is α-[3,5-dimethyl-1-(2-methylpropyl)hexyl]-ω-hydroxypoly(oxy-1,2-ethyl) 60828-78-6; the cross-linking agent is aziridine; and the thickener is anionic polyacrylate.

[0039] The processing and baking of the base fabric may affect the original color of the fabric, so dye pigments are added to this formula to play a role in color correction and ensure that the prepared fabric meets the required color.

[0040] Step 3, fabric finishing, using the color paste prepared in step 1 as an additive, treating the material selected in step 1 by a single-sided finishing method, specifically using a flat screen printing method to print the base fabric.

[0041] Step 4: The finished fabric needs to be baked at an oven temperature of 150°C for 10 minutes, and then cooled to complete the preparation. The obtained fabric has multiple functions suitable for urban outdoor life, such as water-resistant, UV-resistant, breathable and quick-drying, sweat-reducing, and comfortable to wear.

[0042] Nano titanium dioxide Nano TiO2 has stable chemical properties, is non-toxic and odorless, has UV resistance, antibacterial properties, photocatalytic activity and strong covering power. Therefore, by adding a specific proportion to the fabric, the fabric also has corresponding functions. For nano titanium dioxide, the limited dosage is 10-30 parts. If it is less than 10 parts, it is difficult to reduce sweat marks and antibacterial properties; if it is more than 30 parts, it will affect the feel of the fabric and the comfort of wearing.

[0043] Example 2

[0044] A functional fabric suitable for urban outdoor sports, comprising:

[0045] Step 1, base fabric selection: The base fabric is a textile fabric of porous flexible sheet material, which has a weight specification of 230 grams and meets the requirements of the standard GB / T42698-2023 method A, the anti-see-through index of the white sample is 0.90; according to the standard AATCC 201, its evaporation rate is 2.0ml / hr; according to the standard GB21655.1, its moisture absorption rate is 1S.

[0046] Step 2, color paste preparation: The color paste is composed of the following raw materials in parts by weight:

[0047]

[0048] Step 3: Fabric finishing: the material selected in step 1 is processed by a single-side finishing method, specifically, a rotary screen printing method is used for printing.

[0049] Step 4: The finished fabric needs to be baked at an oven temperature of 180° C. for 7 minutes.

[0050] Example 3

[0051] A functional fabric suitable for urban outdoor sports, comprising:

[0052] Step 1, base fabric selection: The base fabric is a textile fabric of porous flexible sheet material, which has a weight specification of 230 grams and meets the requirements of the standard GB / T42698-2023 method A, the anti-see-through index of the white sample is 0.90; according to the standard AATCC 201, its evaporation rate is 2.0ml / hr; according to the standard GB21655.1, its moisture absorption rate is 1S.

[0053] Step 2, color paste preparation: The color paste is composed of the following raw materials in parts by weight:

[0054]

[0055]

[0056] Step 3: Fabric finishing, treating the material selected in step 1 by a single-side finishing method, specifically using a coating method for printing.

[0057] Step 4: The finished fabric needs to be baked at an oven temperature of 170° C. for 6 minutes.

[0058] The prepared fabrics were tested below.

[0059] The fabric prepared in Example 1 was subjected to a no-sweat test, and the results are shown in Table 1 below:

[0060] Table 1

[0061] Watermark free Visibility-sweat stain on synthetic sweat-free test

[0062]

[0063] From the above tests, it can be seen that after multiple washings, it still has good performance and can maintain the function of reducing sweat marks for a long time.

[0064] The fabric prepared in Example 2 was subjected to a no-sweat test, and the results are shown in Table 2 below:

[0065] Table 2

[0066] Anti-Perspiration:

[0067]

[0068] Note: If the sweat has not been completely absorbed after dripping for more than 60 seconds, press with a glass rod until the sweat is completely absorbed to determine if the non-skin-adhering surface has changed color.

[0069] The above AD categories refer to the classification of the results of the anti-perspiration test, with category D being the best anti-stain effect and category A being the worst anti-stain effect.

[0070] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a functional fabric suitable for outdoor sports, characterized in that: The following steps are involved: Step 1: prepare a base fabric, which is a textile fabric of a porous flexible sheet material; Step 2, preparing a color paste, which is composed of the following raw materials in parts by weight: 10-40 parts of acrylic resin, 10-30 parts of nano titanium dioxide, 0-20 parts and greater than 0 of aliphatic hydrocarbon, 0-50 parts and greater than 0 of hydrophobic agent, 0-3 parts and greater than 0 of cross-linking agent, 0-2 parts and greater than 0 of thickener, 0-5 parts and greater than 0 of paint dyeing pigment, and the balance is water; Step 3, treating the base fabric in a single-side finishing manner, so that the color paste covers the surface of the base fabric, and a portion of the color paste penetrates into the base fabric and is distributed on the fiber surface of the base fabric; Step 4, baking to solidify the color paste to complete the preparation; For the selection of base fabric, the following conditions are met: according to standard GB / T42698-2023 method A, the anti-see-through index of the white sample is greater than 0.80; according to standard AATCC 201, the evaporation rate is greater than 1.0 ml / hr; according to standard GB21655.1, the moisture absorption rate is less than 2S.

2. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: The model of the acrylic resin is 9003-01-4; the model of the nano titanium dioxide is 13463-67-7; the model of the aliphatic hydrocarbon is 64742-49-0; the hydrophobic agent is α-[3,5-dimethyl-1-(2-methylpropyl)hexyl]-ω-hydroxypoly(oxy-1,2-ethyl) 60828-78-6; the crosslinking agent is aziridine; and the thickener is anionic polyacrylate.

3. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: In step 3, when finishing on one side, flat screen printing, rotary screen printing or coating process is adopted.

4. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: In the step 4, baking is performed at a temperature of 150-180° C. for 5-10 minutes.

5. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: The average particle size of the nano titanium dioxide is less than 260nm and greater than 0, and the pH value is 5-7.

5.

6. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: The base fabric is a knitted fabric or a woven fabric, and the unit weight of the fabric is >100 GSM.

7. The method for preparing a functional fabric suitable for outdoor sports according to claim 1, characterized in that: When the base fabric is combined with the color paste, the base fabric is first pre-dried at a temperature of 80-120°C.

8. A functional fabric suitable for outdoor sports, characterized in that: The method according to any one of claims 1 to 7 comprises a base cloth, the base cloth is woven from fibers, and the surface of the base cloth and the surfaces of the fibers in the base cloth are both molded and covered with nano titanium dioxide.

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