Clothing fabric with high antibacterial property, sunlight resistance and difficulty in fading and preparation process

Abstract

The invention relates to the related technical field of costume fabrics, in particular to a high-antibacterial anti-sunshine costume fabric not prone to fading and a preparation technology, the high-antibacterial anti-sunshine costume fabric comprises a base fiber layer, and an antibacterial finishing layer, an anti-ultraviolet layer and a color fastness enhancing layer are arranged on the base fiber layer. According to the high-antibacterial anti-sunshine clothing fabric not prone to fading and the preparation process, a nano-silver and chitosan composite system is adopted, nano-silver releases silver ions to destroy the physiological structure of bacteria, chitosan inhibits the activity of the bacteria through the amino effect, the nano-silver and the chitosan cooperate with each other, the antibacterial effect of clothing is improved, nano-zinc oxide and titanium dioxide composite sol improve the antibacterial effect of the clothing, and the antibacterial effect of the clothing is improved. Through multiple mechanisms of reflecting, scattering and absorbing ultraviolet rays, broadband protection is formed, the ultraviolet rays can be effectively blocked, the high-grade sunscreen requirement is met, the skin is protected from being damaged by the ultraviolet rays, the sulfonic-group-containing organic dye fixing agent, dye molecules and fibers form chemical bond combination, a stable color fixing network is constructed, and the appearance color and luster are kept lasting.

Description

Technical Field

[0001] This invention relates to the technical field of clothing fabrics, and in particular to a clothing fabric with high antibacterial, sun-resistant, and colorfast properties, as well as its preparation process. Background Technology

[0002] In modern society, consumers' demands for clothing are no longer limited to aesthetics and comfort. They also place higher demands on the functionality of fabrics. Traditional clothing fabrics have many shortcomings in terms of antibacterial properties, UV resistance, and colorfastness.

[0003] In daily life, clothing is easily contaminated by various bacteria, fungi and other microorganisms, which can not only produce odors but also affect human health. This is especially true for people who sweat easily or wear clothes in hot and humid environments, where the problem of microbial growth is more serious. Ordinary fabrics lack effective antibacterial properties and are unable to inhibit the growth and reproduction of microorganisms.

[0004] Meanwhile, as people pay more attention to the damage of ultraviolet rays to human skin, they hope that the clothing they wear can have good anti-ultraviolet function to reduce the direct exposure of ultraviolet rays to the skin. However, the anti-ultraviolet ability of conventional fabrics is limited and cannot provide sufficient protection for the human body.

[0005] In addition, clothing faces the problem of fading during daily wear and washing. Frequent exposure to sunlight, washing, and friction can cause the fabric color to gradually fade and lose its original luster, affecting the appearance and lifespan of the garment. For some high-priced or special garments, poor colorfastness is a major headache for consumers. Therefore, it is necessary to develop a clothing fabric that is both highly antibacterial and resistant to fading under sunlight. Summary of the Invention

[0006] The purpose of this invention is to provide a highly antibacterial, sun-resistant, and colorfast clothing fabric and its preparation process, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a highly antibacterial, sun-resistant, and colorfast clothing fabric and its preparation process, comprising a base fiber layer, wherein an antibacterial finishing layer, an anti-ultraviolet layer, and a color fastness enhancement layer are disposed on the top of the base fiber layer; The antibacterial finishing layer is composed of a composite system of nano-silver and chitosan. The UV-resistant layer is composed of a composite sol of nano zinc oxide and titanium dioxide. The color fastness enhancement layer is composed of an organic dye fixative containing sulfonic acid groups.

[0008] Preferably, the base fiber layer is one or more blended fibers selected from cotton, polyester, and nylon.

[0009] Preferably, the nano-silver particles in the antibacterial finishing layer have a particle size of 5nm-20nm, and the nano-zinc oxide particles have a particle size of 10nm-30nm.

[0010] Preferably, based on the total mass of the garment fabric, the mass fraction of the nano-silver and chitosan composite system is 0.5% to 2%, the mass fraction of the nano-zinc oxide and titanium dioxide composite sol is 1% to 3%, and the mass fraction of the sulfonic acid-containing organic dye fixative is 0.3% to 1%.

[0011] A manufacturing process for a highly antibacterial, sun-resistant, and colorfast clothing fabric further includes the following steps: Step 1: Desizing, scouring, and bleaching the base fabric; Step 2: Treat the pretreated fabric with nano-silver-chitosan solution by padding, with a padding rate of 70% to 80%, and dry at 120°C. Step 3: Apply nano zinc oxide-titanium dioxide composite sol to the antibacterial finished fabric using the sol-gel method, followed by pre-baking and baking treatment; Step 4: After dyeing the fabric, immerse it in a color fastness enhancer solution and then dry it. Step 5: Perform heat setting treatment on the dyed fabric.

[0012] Preferably, in step two, the pH value of the nano-silver-chitosan solution is 5-6, and the drying time is 3 minutes.

[0013] Preferably, in step three, the pre-baking temperature is 80°C, the baking temperature is 160°C, and the baking time is 5 minutes.

[0014] Preferably, in step four, the dyeing bath ratio is 1:15, the dyeing temperature is 60°C, the holding time is 30 minutes, the color fastness enhancing agent solution contains 20 g / L of fixing agent and 5 g / L of penetrant, and the drying temperature is 100°C.

[0015] Preferably, in step five, the heat setting temperature is 120°C and the heat setting time is 2 minutes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This is a highly antibacterial, sun-resistant, and colorfast clothing fabric and its manufacturing process. Through the antibacterial finishing layer, a nano-silver and chitosan composite system is used during use. The nano-silver releases silver ions to destroy the physiological structure of bacteria, and the chitosan inhibits bacterial activity through amino action. The two work together to increase the antibacterial effect of the clothing. After multiple washes, the antibacterial components are still firmly attached, improving the antibacterial durability. 2. Through the anti-UV layer, when in use, the nano zinc oxide and titanium dioxide composite sol forms a wide-band protection through multiple mechanisms of reflecting, scattering and absorbing ultraviolet rays, which can effectively block ultraviolet rays, meet the high level of sun protection needs, and protect the skin from ultraviolet damage. 3. Through the color fastness enhancement layer, during use, the sulfonic acid-containing organic dye fixative forms chemical bonds with the dye molecules and fibers to build a stable color-fixing network, which is not easy to fade under long-term sunlight and maintains the appearance and color for a long time. 4. The base fiber is made of blended materials such as cotton, polyester, and nylon, which takes into account the properties of moisture absorption and breathability, wrinkle resistance and wear resistance, making it comfortable to wear. Heat setting and other treatments in the manufacturing process improve the dimensional stability of the fabric, prevent deformation, and ensure its practicality for long-term use. Attached Figure Description

[0017] Figure 1 This is a side view of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the microstructure of the present invention.

[0018] In the diagram: 1. Base fiber layer; 2. Antibacterial finishing layer; 3. UV protection layer; 4. Color fastness enhancement layer. Detailed Implementation

[0019] Unless the context clearly indicates otherwise, nouns without quantifiers and nouns modified by "the" include singular and plural indicators of persons / kinds.

[0020] As used in the specification and claims, the terms “comprising,” “including,” “having,” “may,” “containing,” and variations thereof are open transitional phrases, terms, or words that require the presence of a specified ingredient / step and allow the presence of other ingredients / steps. However, such a description should be interpreted as also describing the composition or method as consisting of the ingredients / steps listed “by” and “substantially by,” which allows only the specified ingredient / step and any unavoidable impurities that may arise therefrom to be present, and excludes other ingredients / steps.

[0021] The numerical values ​​in the specification and claims of this application should be understood to include the same numerical values ​​when reduced to the same number of significant figures and numerical values ​​that differ from the stated values ​​by less than the experimental error of conventional measurement techniques used to determine the stated values ​​of the type described in this application.

[0022] All ranges disclosed herein include the endpoints referred to and can be combined independently (e.g., the range “2 g to 10 g” includes the endpoints 2 g and 10 g, as well as all intermediate values).

[0023] The terms “about” and “approximately” can be used to include any numerical value that may vary without altering its fundamental function. When used with a range, “about” and “approximately” also disclose a range defined by the absolute values ​​of its two endpoints; for example, “about 2 to about 4” also discloses a range of “2 to 4”. Typically, the terms “about” and “approximately” can refer to ±10% of the indicated number. However, for temperature, the term “approximately” refers to ±1°C.

[0024] Unless otherwise expressly stated, the percentage of elements shall be considered as the weight percentage of the alloy.

[0025] This disclosure may relate to temperatures for certain method steps. It should be noted that these parameters generally refer to the temperature set by the heat source (such as a furnace), and not necessarily the temperature that the heated material must reach.

[0026] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention. Example

[0027] Please see Figure 1 - Figure 3 This invention provides a technical solution: a highly antibacterial, sun-resistant, and colorfast clothing fabric, comprising a base fiber layer 1, an antibacterial finishing layer 2, an anti-ultraviolet layer 3, and a colorfastness enhancing layer 4 disposed above the base fiber layer 1; the antibacterial finishing layer 2 is composed of a nano-silver and chitosan composite system; the anti-ultraviolet layer 3 is composed of a nano-zinc oxide and titanium dioxide composite sol; the colorfastness enhancing layer 4 is composed of an organic dye fixative containing sulfonic acid groups. Through the arrangement of the base fiber layer 1, antibacterial finishing layer 2, anti-ultraviolet layer 3, and colorfastness enhancing layer 4, in use, the base fiber layer 1 serves as the main body of the fabric, supporting other functional layers; the antibacterial finishing layer 2, anti-ultraviolet layer 3, and colorfastness enhancing layer 4, through their layered structure, respectively impart antibacterial, anti-ultraviolet, and colorfastness enhancing properties to the fabric. The fabric features antibacterial, UV-resistant, and lightfast colorfast properties. Each layer works synergistically to achieve comprehensive fabric performance. In the antibacterial finishing layer 2, nano-silver releases silver ions to disrupt bacterial cell membranes, inhibit enzyme activity, and DNA replication. Chitosan binds to bacterial cell membranes through amino groups, disrupting membrane structure and inhibiting enzyme activity. The combination of these two enhances the durability and broad spectrum of antibacterial properties. In the UV-resistant layer 3, nano-zinc oxide and titanium dioxide reflect, scatter, and absorb ultraviolet light. The nano-sized particles increase the specific surface area, broadening the UV-resistant band and improving protection efficiency. In the colorfastness enhancement layer 4, sulfonic acid groups form chemical bonds with dye molecules and react with the fiber to form a protective film on the fiber surface, reducing the probability of dye decomposition under light, enhancing the binding force between the dye and the fiber, and improving lightfastness.

[0028] Furthermore, the base fiber layer 1 is one or more blended fibers of cotton, polyester, and nylon. Through the above structure, when in use, the blend of cotton, polyester, and nylon provides a comfortable wearing experience by combining the properties of moisture absorption, breathability, wrinkle resistance, and abrasion resistance. At the same time, it provides a stable base for the attachment of functional layers and ensures the basic mechanical properties of the fabric.

[0029] Furthermore, in the antibacterial finishing layer 2, the particle size of the nano-silver is 5nm-20nm, and the particle size of the nano-zinc oxide is 10nm-30nm. Through the above structure, when in use, the nano-sized particles result in a large specific surface area and many active sites. The small particle size of the nano-silver facilitates uniform dispersion and continuous silver release. The nano-zinc oxide has high ultraviolet absorption and scattering efficiency within this particle size range, avoiding agglomeration and ensuring the uniformity of the functional layer.

[0030] Furthermore, based on the total mass of the apparel fabric, the mass fraction of the nano-silver and chitosan composite system is 0.5%–2%, the mass fraction of the nano-zinc oxide and titanium dioxide composite sol is 1%–3%, and the mass fraction of the organic dye fixative containing sulfonic acid groups is 0.3%–1%. Through the above structure, the optimized ratio ensures synergistic function during use, the antibacterial system has sufficient concentration without affecting the hand feel, the UV protection system takes into account both protection and breathability, and the color fastness enhancer fixes the dye in an appropriate amount, thus balancing function and the overall performance of the fabric.

[0031] Working Principle: The base fiber layer 1 serves as the main body of the fabric, supporting other functional layers. The antibacterial finishing layer 2, UV-resistant layer 3, and colorfastness enhancement layer 4, through their layered structure, respectively endow the fabric with antibacterial, UV-resistant, and lightfastness-resistant properties. These layers work synergistically to achieve the fabric's comprehensive performance. In the antibacterial finishing layer 2, nano-silver releases silver ions to disrupt bacterial cell membranes, inhibit enzyme activity, and DNA replication. Chitosan binds to bacterial cell membranes through amino groups, disrupting membrane structure and inhibiting enzyme activity. The combination of these two enhances the durability and broad spectrum of antibacterial activity. In the UV-resistant layer 3, nano-zinc oxide and titanium dioxide reflect, scatter, and absorb ultraviolet light. Their nano-sized particles increase the specific surface area, broadening the UV-resistant band and improving protection efficiency. In the colorfastness enhancement layer 4, sulfonic acid groups form... The chemical bonds react with the fibers to form a protective film on the fiber surface, reducing the probability of dye decomposition under light, enhancing the binding force between the dye and the fiber, and improving lightfastness. The blend of cotton, polyester, and nylon provides a comfortable wearing experience by combining moisture absorption, breathability, wrinkle resistance, and abrasion resistance. At the same time, it provides a stable base for the adhesion of functional layers, ensuring the basic mechanical properties of the fabric. The nano-sized particles result in a large specific surface area and many active sites. The small size of the nano-silver particles facilitates uniform dispersion and continuous silver release. The nano-zinc oxide has high UV absorption and scattering efficiency within this particle size range, avoiding agglomeration and ensuring the uniformity of the functional layer. Optimized ratios ensure synergistic function. The antibacterial system has a sufficient concentration without affecting the feel, and the UV protection system balances protection and breathability. The colorfastness enhancer fixes the dye in an appropriate amount, balancing functionality and overall fabric performance. Example

[0032] A manufacturing process for a highly antibacterial, sun-resistant, and colorfast clothing fabric includes the following steps: Step 1: Desizing, scouring, and bleaching the base fabric removes sizing agents, impurities, and pigments, improves fiber cleanliness and activity, increases specific surface area, facilitates the adsorption and binding of subsequent functional components, and ensures the adhesion effect of the functional layer. Step 2: The pretreated fabric is treated with a nano-silver-chitosan solution by padding, with a padding rate of 70% to 80%, and then dried at 120°C. The pH value of the nano-silver-chitosan solution is 5-6, and the drying time is 3 minutes. Padding ensures that the solution penetrates the fiber evenly. The appropriate padding rate ensures the adsorption of antibacterial agent. Drying at 120°C promotes the formation of a film in the antibacterial system, cross-links chitosan with the fiber, fixes the nano-silver, and improves the antibacterial durability. At pH 5-6, the chitosan amino groups are protonated, and the solution evenly disperses the nano-silver. Drying for 3 minutes ensures that the solvent evaporates, avoids the agglomeration of nano-silver or the decomposition of chitosan, and ensures the effect of the antibacterial layer. Step 3: The nano-zinc oxide-titanium dioxide composite sol is coated onto the antibacterial finished fabric using the sol-gel method. After pre-baking, a baking treatment is performed at 80℃ and 160℃ for 5 minutes. The sol-gel method ensures the composite sol is evenly spread. Pre-baking removes the solvent, and baking promotes cross-linking and solidification of the sol, forming a tight, UV-resistant film. Nanoparticles are embedded in the film, enhancing its abrasion resistance and washability. Pre-baking at 80℃ slowly removes the solvent to prevent film defects. Baking at 160℃ causes the sol to condense into a three-dimensional network structure, firmly embedding the nanoparticles. The 5-minute baking time ensures a complete reaction without damaging the fibers. Step 4: After dyeing the fabric, pad it with a color fastness enhancer solution and dry it. The dyeing liquor ratio is 1:15, the dyeing temperature is 60℃, and the holding time is 30 minutes. The color fastness enhancer solution contains 20g / L of fixing agent and 5g / L of penetrant. The drying temperature is 100℃. Dyeing allows the dye to adhere to the fiber. The sulfonic acid compounds in the color fastness enhancer react with the dye and fiber to form a color-fixing network structure. Drying solidifies the structure, reducing the decomposition and shedding of the dye under light. The 1:15 liquor ratio and 60℃ holding time for 30 minutes ensure uniform dyeing. The concentration of fixing agent ensures sufficient reaction. The penetrant promotes the penetration of the enhancer. Drying at 100℃ allows the fixing agent to cross-link and form a film, fixing the dye. Step 5: Perform heat setting treatment on the dyed fabric. The heat setting temperature is 120℃ and the heat setting time is 2 minutes. The 120℃ temperature enhances the plasticity of the fibers, and the 2 minutes allow the molecular chains to rearrange, eliminate stress, stabilize the fabric width and shape, and at the same time, do not damage the functional layer and extend the service life.

[0033] Specific steps: The base fabric undergoes desizing, scouring, and bleaching to remove sizing agents, impurities, and pigments, improving fiber cleanliness and activity, increasing specific surface area, facilitating the adsorption and binding of subsequent functional components, and ensuring the adhesion effect of the functional layer. The pre-treated fabric is then treated with a nano-silver-chitosan solution via padding, with a padding rate of 70%–80%, followed by drying at 120℃. The pH value of the nano-silver-chitosan solution is 5–6, and the drying time is 3 minutes. Padding ensures uniform penetration of the solution into the fibers, and the appropriate padding rate guarantees the adsorption capacity of the antibacterial agent. Drying at 120℃ promotes film formation in the antibacterial system, and cross-links chitosan with the fibers. To improve antibacterial durability, nano-silver is fixed. Chitosan is protonated at pH 5-6, ensuring uniform dispersion of nano-silver in the solution. Drying for 3 minutes ensures solvent evaporation, preventing nano-silver agglomeration or chitosan decomposition, thus guaranteeing the antibacterial layer effect. A sol-gel method is used to coat the antibacterial-treated fabric with a nano-zinc oxide-titanium dioxide composite sol. Pre-baking followed by baking (80℃, 160℃, 5 minutes) ensures uniform spreading of the composite sol. Pre-baking removes the solvent, and baking promotes cross-linking and solidification of the sol, forming a dense, UV-resistant film. The nanoparticles... Embedded in the membrane, it enhances abrasion resistance and washability. Pre-drying at 80℃ slowly removes the solvent, preventing membrane defects. Baking at 160℃ causes the sol to condense into a three-dimensional network structure, firmly embedding the nanoparticles. A 5-minute pre-dry ensures sufficient reaction without damaging the fibers. After dyeing the fabric, it is padded with a colorfastness enhancer solution and dried. The dyeing bath ratio is 1:15, the dyeing temperature is 60℃, and the holding time is 30 minutes. The colorfastness enhancer solution contains 20g / L of fixing agent and 5g / L of penetrant. The drying temperature is 100℃. Dyeing allows the dye to adhere to the fibers. The sulfonic acid compounds in the colorfastness enhancer... It reacts with dyes and fibers to form a color-fixing network structure. Drying and curing the structure reduces dye decomposition and shedding under light. A 1:15 liquor ratio and 60℃ for 30 minutes ensure uniform dyeing. The concentration of the color-fixing agent ensures a full reaction. The penetrant promotes the penetration of the reinforcing agent. Drying at 100℃ allows the color-fixing agent to cross-link and form a film, fixing the dye. The dyed fabric is then heat-set at 120℃ for 2 minutes. 120℃ enhances fiber plasticity, and 2 minutes allows the molecular chains to rearrange, eliminating stress and stabilizing the fabric width and shape without damaging the functional layer, thus extending its service life. Example

[0034] The bottom fiber layer is a blend of 50% cotton and 50% nylon fibers, with a weight of 200g / m²; the antibacterial finishing layer is nano-silver with a particle size of 10nm, in a composite system with chitosan, with a mass fraction of 1.2%; the UV-resistant layer is nano-zinc oxide with a particle size of 20nm, in a composite sol with titanium dioxide, with a mass fraction of 2%; and the color fastness enhancement layer is an organic dye fixative containing sulfonic acid groups, with a mass fraction of 0.6%.

[0035] Step 1: Desizing, scouring, and bleaching the cotton / nylon blended fabric to remove sizing agents, impurities, and pigments; Step 2: Impregnate the fabric with a nano-silver-chitosan solution with a pH of 5.5, with a roll-off rate of 75%, and dry at 120℃ for 3 minutes; Step 3: Coat the nano zinc oxide-titanium dioxide composite sol using the sol-gel method, pre-bake at 80℃ for 5 minutes, and bake at 160℃ for 5 minutes; Step 4: Dye with reactive blue dye at a liquor ratio of 1:15 and keep warm at 60℃ for 30 minutes; after dyeing, pad with a color fastness enhancer solution containing 20g / L fixing agent and 5g / L penetrant, and dry at 100℃. Step 5: Heat set at 120℃ for 2 minutes to stabilize the fabric dimensions.

[0036] Specific steps: The base fiber layer is a 50% cotton + 50% nylon blended fiber, with a weight of 200g / m²; the antibacterial finishing layer is nano-silver, with a particle size of 10nm, in a chitosan composite system, with a mass fraction of 1.2%; the UV-resistant layer is nano-zinc oxide, with a particle size of 20nm, in a titanium dioxide composite sol, with a mass fraction of 2%; the color fastness enhancing layer is an organic dye fixative containing sulfonic acid groups, with a mass fraction of 0.6%. The cotton / nylon blended fabric undergoes desizing, scouring, and bleaching treatments to remove sizing agents, impurities, and pigments. The fabric was treated with a nano-silver-chitosan solution with a pH of 5.5, with a pick-up rate of 75%, and dried at 120°C for 3 minutes. A nano-zinc oxide-titanium dioxide composite sol was then coated using the sol-gel method, pre-dried at 80°C for 5 minutes, and baked at 160°C for 5 minutes. The fabric was then dyed with reactive blue dye at a liquor ratio of 1:15 and held at 60°C for 30 minutes. After dyeing, the fabric was padded with a color fastness enhancer solution containing 20 g / L fixing agent and 5 g / L penetrant, dried at 100°C, and heat-set at 120°C for 2 minutes to stabilize the fabric dimensions. Example

[0037] The base fiber layer is 100% polyester fiber with a basis weight of 150 g / m²; the antibacterial finishing layer is nano-silver with a particle size of 15 nm, in a composite system with chitosan, with a mass fraction of 0.8%; the UV-resistant layer is nano-zinc oxide with a particle size of 25 nm, in a composite sol with titanium dioxide, with a mass fraction of 1.5%; and the color fastness enhancement layer is an organic dye fixative containing sulfonic acid groups, with a mass fraction of 0.4%.

[0038] Step 1: Desizing and degreasing the polyester fabric to enhance fiber surface activity; Step 2: Impregnate the fabric with a nano-silver-chitosan solution with a pH of 5.2, with a roll-off rate of 72%, and dry at 120℃ for 3 minutes; Step 3: Coat the nano zinc oxide-titanium dioxide composite sol using the sol-gel method, pre-bake at 80℃ for 4 minutes, and bake at 160℃ for 5 minutes; Step 4: Dye with disperse dye at a liquor ratio of 1:12 and keep warm at 130℃ for 40 minutes; after dyeing, pad with a color fastness enhancer solution containing 20g / L fixing agent and 5g / L penetrant, and dry at 100℃. Step 5: Heat set at 120℃ for 2 minutes to improve fabric smoothness and dimensional stability.

[0039] Specific steps: The base fiber layer is 100% polyester fiber, with a basis weight of 150g / m²; the antibacterial finishing layer is nano-silver, with a particle size of 15nm, in a composite system with chitosan, with a mass fraction of 0.8%; the UV-resistant layer is nano-zinc oxide, with a particle size of 25nm, in a composite sol with titanium dioxide, with a mass fraction of 1.5%; the color fastness enhancing layer is an organic dye fixative containing sulfonic acid groups, with a mass fraction of 0.4%. The polyester fabric undergoes desizing and degreasing treatments to improve fiber surface activity, using a nano-sol with a pH value of 5.2. The fabric was treated with a rice silver-chitosan solution padding with a 72% padding rate, dried at 120℃ for 3 minutes, coated with a nano zinc oxide-titanium dioxide composite sol by the sol-gel method, pre-dried at 80℃ for 4 minutes, baked at 160℃ for 5 minutes, dyed with disperse dyes at a liquor ratio of 1:12, and kept at 130℃ for 40 minutes; after dyeing, it was padded with a color fastness enhancer solution containing 20g / L fixing agent and 5g / L penetrant, dried at 100℃, and heat-set at 120℃ for 2 minutes to improve the fabric's smoothness and dimensional stability.

[0040] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention can be modified or altered in any way. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. These specific embodiments are merely explanations of this application and are not limitations thereof. Those skilled in the art can make modifications to these embodiments without contributing any inventive step after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of this application.

Claims

1. A clothing fabric with high antibacterial, sun-resistant, and colorfast properties, characterized in that: It includes a base fiber layer (1), and an antibacterial finishing layer (2), an anti-ultraviolet layer (3) and a color fastness enhancement layer (4) are disposed on the top of the base fiber layer (1). The antibacterial finishing layer (2) is composed of a composite system of nano-silver and chitosan; The UV-resistant layer (3) is composed of nano zinc oxide and titanium dioxide composite sol; The color fastness enhancement layer (4) is composed of an organic dye fixative containing sulfonic acid groups.

2. The clothing fabric with high antibacterial, sun-resistant, and colorfast properties according to claim 1, characterized in that: The base fiber layer (1) is one or more blended fibers of cotton, polyester, and nylon.

3. The clothing fabric with high antibacterial and sun-resistant properties that is not easily faded according to claim 1, characterized in that: The antibacterial finishing layer (2) has a nano-silver particle size of 5nm-20nm and a nano-zinc oxide particle size of 10nm-30nm.

4. The clothing fabric with high antibacterial, sun-resistant, and colorfast properties according to claim 1, characterized in that: Based on the total mass of the garment fabric, the mass fraction of the nano-silver and chitosan composite system is 0.5% to 2%, the mass fraction of the nano-zinc oxide and titanium dioxide composite sol is 1% to 3%, and the mass fraction of the sulfonic acid-containing organic dye fixative is 0.3% to 1%.

5. A preparation process for a highly antibacterial, sun-resistant, and colorfast clothing fabric, characterized in that: The clothing fabric using any one of claims 1-4, characterized by high antibacterial properties, resistance to sunlight, and colorfastness, further includes the following steps: Step 1: Desizing, scouring, and bleaching the base fabric; Step 2: Treat the pretreated fabric with nano-silver-chitosan solution by padding, with a padding rate of 70% to 80%, and dry at 120°C. Step 3: Apply nano zinc oxide-titanium dioxide composite sol to the antibacterial finished fabric using the sol-gel method, followed by pre-baking and baking treatment; Step 4: After dyeing the fabric, immerse it in a color fastness enhancer solution and then dry it. Step 5: Perform heat setting treatment on the dyed fabric.

6. The preparation process of a highly antibacterial, sun-resistant, and colorfast clothing fabric according to claim 5, characterized in that: In step two, the pH value of the nano-silver-chitosan solution is 5-6, and the drying time is 3 minutes.

7. The preparation process of a highly antibacterial, sun-resistant, and colorfast clothing fabric according to claim 5, characterized in that: In step three, the pre-baking temperature is 80℃, the baking temperature is 160℃, and the baking time is 5 minutes.

8. The preparation process of a highly antibacterial, sun-resistant, and colorfast clothing fabric according to claim 5, characterized in that: In step four, the dyeing bath ratio is 1:15, the dyeing temperature is 60℃, the holding time is 30 minutes, the color fastness enhancing agent solution contains 20g / L of fixing agent and 5g / L of penetrant, and the drying temperature is 100℃.

9. The preparation process of a highly antibacterial, sun-resistant, and colorfast clothing fabric according to claim 5, characterized in that: In step five, the heat setting temperature is 120°C and the heat setting time is 2 minutes.

Images