High-function titanium fiber with skin-core structure, preparation method of high-function titanium fiber and fabric applying titanium fiber

Abstract

The invention relates to the technical field of fabrics, and particularly discloses a high-function titanium fiber with a skin-core structure, a preparation method of the high-function titanium fiber and a fabric applying the titanium fiber. The high-function titanium fiber with the skin-core structure comprises a skin layer structure and a core layer structure, the skin layer structure is prepared from the following raw material components in parts by weight: 98 to 99 parts of fiber and 1 to 2 parts of nano titanium dioxide; the core layer structure comprises the following raw materials in parts by weight: 78-86 parts of fibers, 18-20 parts of nano titanium dioxide and 2-3 parts of silver ion loaded zeolite. The composite fiber with a double-layer structure is adopted, a small amount of nano titanium dioxide is added into the skin layer structure, a large amount of nano titanium dioxide is added into the core layer structure, and the silver ion loaded zeolite is matched, so that the obtained high-function titanium fiber has multiple properties such as sun protection, antibiosis and heat insulation at the same time; therefore, the high-function titanium fiber can be used for preparing a multifunctional fabric.

Description

Technical Field

[0001] The present application relates to the technical field of fabrics, and in particular to a high-functional titanium fiber with a skin-core structure, a preparation method thereof, and a fabric using the titanium fiber. Background Art

[0002] Traditional functional fabrics often achieve single properties, such as sun protection or antibacterial properties, through post-finishing processes. This leads to problems such as poor functional integration, insufficient durability, and reduced comfort. For example, conventional sun-protective fabrics rely on coatings that are prone to shedding and have poor breathability; antibacterial fabrics often contain organic additives, resulting in poor washability. Furthermore, existing technologies struggle to simultaneously address the conflicting demands of heat protection and cooling. Therefore, there is an urgent need for fiber yarns with innovative structures to achieve the production of multifunctional, integrated fabrics. Summary of the Invention

[0003] In order to obtain a multifunctional fabric, the present application provides a high-functional titanium fiber with a skin-core structure, a preparation method thereof, and a fabric using the titanium fiber.

[0004] In the first aspect, the present application provides a high-function titanium fiber with a skin-core structure, which adopts the following technical solution: A high-function titanium fiber with a skin-core structure comprises a skin structure and a core structure; the raw materials of the skin structure include the following components in parts by weight: 98-99 parts of fiber and 1-2 parts of nano-titanium dioxide; the raw materials of the core structure include 78-86 parts of fiber, 18-20 parts of nano-titanium dioxide, and 2-3 parts of silver ion-loaded zeolite.

[0005] By adopting the above technical solution, a double-layer composite fiber is used, a small amount of nano-titanium dioxide is added to the skin structure, a larger amount of nano-titanium dioxide is added to the core structure, and silver ion-loaded zeolite is added, so that the obtained high-functional titanium fiber has multiple properties such as sun protection, antibacterial, and heat shielding. Therefore, this high-functional titanium fiber can be used to make multifunctional fabrics.

[0006] In a specific embodiment, the method for preparing the silver ion-loaded zeolite comprises the following steps: Pretreatment: Soak the nano zeolite in a hydrochloric acid solution, stir at 75-85°C for 1.5-2.5 hours, then wash and dry to obtain pretreated zeolite; Preparation of silver ion solution: Dissolve silver nitrate in deionized water, add sodium citrate, and stir to mix well to obtain a silver ion solution; Ion exchange: The pretreated zeolite is immersed in a silver ion solution, magnetically stirred under heating conditions, the pH is controlled at 5.5-6.5, and ultrasonic treatment is performed during stirring to obtain a mixed solution; Post-treatment: The mixed solution is centrifuged to obtain loaded particles, which are then washed and added to an ascorbic acid solution, stirred, filtered, and dried to obtain silver ion loaded zeolite.

[0007] By adopting the above technical scheme, the nano zeolite is firstly acid-washed and activated with hydrochloric acid to remove impurities of the nano zeolite and improve the ion exchange capacity; when preparing the silver ion solution, the stabilizer sodium citrate is added to prevent the silver from agglomerating, the pretreated zeolite is immersed in the silver ion solution for ion exchange, and after washing, it is added to the ascorbic acid solution to reduce part of the anions, thereby enhancing the antibacterial performance, and obtaining the silver ion-loaded zeolite.

[0008] In a specific embodiment, in the ion exchange step, the solid-liquid ratio is 1:15, the heating temperature is 50-60° C., and the stirring time is 4-6 hours.

[0009] By adopting the above technical solution, the solid-liquid ratio, temperature and time during ion exchange are further limited, thereby improving the ion exchange effect and thus improving the effect of obtaining silver ion-loaded zeolite.

[0010] In a specific embodiment, the raw materials of the skin structure further include 0.5 to 1 parts by weight of nano zinc oxide and 0.1 to 0.3 parts by weight of polyethylene glycol.

[0011] By adopting the above technical solution, nano-zinc oxide and nano-titanium dioxide synergistically enhance full-band UV shielding while improving antibacterial properties; polyethylene glycol is used as a dispersant to ensure that the nanoparticles are evenly dispersed.

[0012] In a specific embodiment, the raw materials of the core layer structure further include 5 to 8 parts by weight of phase change material microcapsules and 0.1 to 0.3 parts by weight of modified graphene.

[0013] By adopting the above technical solution, the phase change material microcapsules regulate temperature fluctuations and the modified graphene further improves the thermal insulation performance.

[0014] In a specific embodiment, the method for preparing the modified graphene comprises the following steps: γ-aminopropyltriethoxysilane, ethanol, and water are stirred and mixed to obtain a treatment solution; The nanographene is stirred, and a treatment liquid is sprayed during the stirring process. After the spraying is completed, the stirring is continued and the graphene is dried to obtain modified graphene.

[0015] By adopting the above technical solution, graphene is modified using γ-aminopropyltriethoxysilane, which improves the dispersion performance of graphene. γ-aminopropyltriethoxysilane can also enhance the interfacial bonding strength between the additive and the fiber substrate.

[0016] In a specific embodiment, the weight ratio of the treatment liquid to the nanographene is 1:(13-14).

[0017] In a second aspect, the present application provides a method for preparing a high-functional titanium fiber with a skin-core structure, which adopts the following technical solution: A method for preparing a high-function titanium fiber with a skin-core structure comprises the following steps: Granulation: Fiber, nano-titanium dioxide, silver ion loaded zeolite and other raw materials are blended and granulated to obtain core layer material; Melt preparation: Fiber, nano-titanium dioxide and other raw materials are melted and blended to obtain skin layer melt; Core layer material is melted to obtain core layer melt; Spinning: The skin layer melt and the core layer melt are added to the skin-core composite spinning machine for spinning and heat setting. The skin layer melt forms a skin structure and the core layer melt forms a core structure to obtain high-functional titanium fiber.

[0018] By adopting the above technical solution, the core layer raw material is first granulated, then the melt is prepared, and then the skin layer melt and the core layer melt are prepared. Finally, the skin layer melt and the core layer melt are added to the skin-core composite spinning machine for spinning to obtain high-functional titanium fiber with multiple properties such as sun protection, antibacterial, and heat shielding.

[0019] In a specific embodiment, the weight ratio of the skin structure to the core structure in the high-functional titanium fiber is (30-40): (60-70).

[0020] In a third aspect, the present application provides a fabric that adopts the following technical solution: A fabric is made from the high-functional titanium fiber with a skin-core structure. The fabric can be used for preparing sun-proof clothing, jackets, T-shirts, shirts, trousers, baby clothing, and home textiles.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. This application uses a double-layer composite fiber, adding a small amount of nano-titanium dioxide to the skin structure and a larger amount of nano-titanium dioxide to the core structure, and then combining it with silver ion-loaded zeolite. The resulting high-function titanium fiber has multiple properties such as sun protection, antibacterial, and heat shielding. Therefore, this high-function titanium fiber can be used to produce multifunctional fabrics. 2. In this application, the nano-zeolite is first acid-washed and activated with hydrochloric acid to remove impurities from the nano-zeolite and improve its ion exchange capacity. When preparing the silver ion solution, sodium citrate as a stabilizer is added to prevent silver from agglomerating. The pretreated zeolite is immersed in the silver ion solution for ion exchange. After washing, it is added to an ascorbic acid solution to reduce some anions and enhance antibacterial properties, thereby obtaining a silver ion-loaded zeolite. 3. The method in the present application is to first granulate the core layer raw material, then prepare the melt, then prepare the skin layer melt and the core layer melt, and finally add the skin layer melt and the core layer melt to the skin-core composite spinning machine for spinning to obtain high-functional titanium fiber with multiple properties such as sun protection, antibacterial, and heat shielding. DETAILED DESCRIPTION

[0022] The present application is further described in detail below with reference to the embodiments.

[0023] All raw materials in the examples are commercially available. Phase change material microcapsules are provided by Forsman Technology (Beijing) Co., Ltd., model number 9707113. Fibers include, but are not limited to, polyester fibers and polyamide fibers, and polyester fibers are preferred in this application.

[0024] Preparation Example Preparation Example 1 Preparation Example 1 provides a method for preparing silver ion-loaded zeolite, comprising the following steps: Pretreatment: The nano-zeolite was immersed in a hydrochloric acid solution with a molar concentration of 1 mol / L and a solid-liquid ratio of 1:10, stirred at 75°C for 2.5 hours, then washed until neutral, and vacuum dried at 105°C for 10 hours to obtain the pretreated zeolite; Preparation of silver ion solution: dissolving silver nitrate in deionized water, adding sodium citrate, stirring and mixing uniformly to obtain a silver ion solution; wherein the molar concentration of silver ions in the silver ion solution is 0.2 mol / L, and the mass fraction of sodium citrate is 0.5%; ion exchange: immersing pretreated zeolite in the silver ion solution with a solid-liquid ratio of 1:15, performing magnetic stirring for 6 hours under heating conditions of 50°C, controlling the pH to 5.5, and performing ultrasonic treatment for 10 minutes every 1 hour during the stirring process to obtain a mixed solution; post-treatment: centrifuging the mixed solution to obtain loaded particles, then washing the mixed solution and adding it to a 0.1% by mass ascorbic acid solution, stirring for 30 minutes, filtering, and vacuum drying at 80°C for 8 hours to obtain silver ion-loaded zeolite; wherein the ascorbic acid solution is a mixed solution consisting of ascorbic acid and water.

[0025] Preparation Example 2 Preparation Example 2 provides a method for preparing silver ion-loaded zeolite, comprising the following steps: Pretreatment: The nano-zeolite was immersed in a hydrochloric acid solution with a molar concentration of 1 mol / L and a solid-liquid ratio of 1:10, stirred at 80°C for 2 h, then washed until neutral, and vacuum dried at 105°C for 10 h to obtain the pretreated zeolite; Preparation of silver ion solution: dissolving silver nitrate in deionized water, adding sodium citrate, stirring and mixing uniformly to obtain a silver ion solution; wherein the molar concentration of silver ions in the silver ion solution is 0.2 mol / L, and the mass fraction of sodium citrate is 0.5%; ion exchange: immersing pretreated zeolite in the silver ion solution with a solid-liquid ratio of 1:15, performing magnetic stirring for 5 hours under heating conditions of 55°C, controlling the pH to 5.5, and performing ultrasonic treatment for 10 minutes every 1 hour during the stirring process to obtain a mixed solution; post-treatment: centrifuging the mixed solution to obtain loaded particles, then washing the mixed solution and adding it to a 0.1% by mass ascorbic acid solution, stirring for 30 minutes, filtering, and vacuum drying at 80°C for 8 hours to obtain silver ion-loaded zeolite; wherein the ascorbic acid solution is a mixed solution consisting of ascorbic acid and water.

[0026] Preparation Example 3 Preparation Example 3 provides a method for preparing silver ion-loaded zeolite, comprising the following steps: Pretreatment: The nano-zeolite was immersed in a hydrochloric acid solution with a molar concentration of 1 mol / L and a solid-liquid ratio of 1:10, stirred at 85°C for 1.5 h, then washed until neutral, and vacuum dried at 105°C for 10 h to obtain the pretreated zeolite; Preparation of silver ion solution: dissolving silver nitrate in deionized water, adding sodium citrate, stirring and mixing uniformly to obtain a silver ion solution; wherein the molar concentration of silver ions in the silver ion solution is 0.2 mol / L, and the mass fraction of sodium citrate is 0.5%; ion exchange: immersing pretreated zeolite in the silver ion solution with a solid-liquid ratio of 1:15, performing magnetic stirring for 4 hours under heating conditions of 60°C, controlling the pH to 5.5, and performing ultrasonic treatment for 10 minutes every 1 hour during the stirring process to obtain a mixed solution; post-treatment: centrifuging the mixed solution to obtain loaded particles, then washing the mixed solution and adding it to a 0.1% by mass ascorbic acid solution, stirring for 30 minutes, filtering, and vacuum drying at 80°C for 8 hours to obtain silver ion-loaded zeolite; wherein the ascorbic acid solution is a mixed solution consisting of ascorbic acid and water.

[0027] Preparation Example 4 Preparation Example 4 provides a method for preparing modified graphene, comprising the following steps: γ-aminopropyltriethoxysilane, ethanol, and water are stirred and mixed to obtain a treatment solution; wherein the weight ratio of γ-aminopropyltriethoxysilane, ethanol, and water is 5:18:2; The nanographene was added into a mixer, and the treatment liquid was slowly sprayed into the nanographene during the stirring process. After the spraying was completed, the stirring was continued for 0.5 hours, and then the mixture was dried at a temperature of 115°C for 2 hours to obtain modified graphene; wherein the weight ratio of the treatment liquid to the nanographene was 1:13.

[0028] Preparation Example 5 Preparation Example 5 provides a method for preparing modified graphene, comprising the following steps: γ-aminopropyltriethoxysilane, ethanol, and water are stirred and mixed to obtain a treatment solution; wherein the weight ratio of γ-aminopropyltriethoxysilane, ethanol, and water is 5:18:2; The nanographene was added into a mixer, and the treatment liquid was slowly sprayed into the nanographene during the stirring process. After the spraying was completed, the stirring was continued for 0.5 hours, and then the mixture was dried at a temperature of 115°C for 2 hours to obtain modified graphene; wherein the weight ratio of the treatment liquid to the nanographene was 1:13.5.

[0029] Preparation Example 6 Preparation Example 6 provides a method for preparing modified graphene, comprising the following steps: γ-aminopropyltriethoxysilane, ethanol, and water are stirred and mixed to obtain a treatment solution; wherein the weight ratio of γ-aminopropyltriethoxysilane, ethanol, and water is 5:18:2; The nanographene was added into a mixer, and the treatment liquid was slowly sprayed into the nanographene during the stirring process. After the spraying was completed, the stirring was continued for 0.5 hours, and then the mixture was dried at a temperature of 115°C for 2 hours to obtain modified graphene; wherein the weight ratio of the treatment liquid to the nanographene was 1:14. Example

[0030] Example 1 Example 1 provides a method for preparing a high-function titanium fiber with a skin-core structure, comprising the following steps: Granulation: 78 kg of polyester fiber, 18 kg of nano-titanium dioxide, and 2 kg of the silver ion-loaded zeolite prepared in Preparation Example 1 were blended and granulated at 250° C. to obtain a core layer material; Melt preparation: 98 kg of polyester fiber and 1 kg of nano-titanium dioxide were melt-blended at 265°C to obtain a skin layer melt; the core layer material was melted at 270°C to obtain a core layer melt; Spinning: The skin melt and the core layer melt are added to the skin-core composite spinning machine for spinning, and are hot stretched and shaped at 160°C. The skin layer melt forms a skin structure, and the core layer melt forms a core structure to obtain a high-functional titanium fiber; the weight ratio of the skin structure to the core layer structure is 30:70.

[0031] Example 2 Example 2 provides a method for preparing a high-function titanium fiber with a skin-core structure, comprising the following steps: Granulation: 82 kg of polyester fiber, 19 kg of nano-titanium dioxide, and 2.5 kg of the silver ion-loaded zeolite prepared in Preparation Example 1 were blended and granulated at 250° C. to obtain a core layer material; Melt preparation: 98.5 kg of polyester fiber and 1.5 kg of nano-titanium dioxide were melt-blended at 265°C to obtain a skin layer melt; the core layer material was melted at 270°C to obtain a core layer melt; Spinning: The skin melt and the core layer melt are added to the skin-core composite spinning machine for spinning, and are hot stretched and shaped at 160°C. The skin layer melt forms a skin structure, and the core layer melt forms a core structure to obtain a high-functional titanium fiber; the weight ratio of the skin structure to the core layer structure is 30:70.

[0032] Example 3 Example 3 provides a method for preparing a high-functional titanium fiber with a skin-core structure, comprising the following steps: Granulation: 86 kg of polyester fiber, 20 kg of nano-titanium dioxide, and 3 kg of the silver ion-loaded zeolite prepared in Preparation Example 1 were blended and granulated at 250° C. to obtain a core layer material; Melt preparation: 99 kg of polyester fiber and 2 kg of nano-titanium dioxide were melt-blended at 265°C to obtain a skin layer melt; the core layer material was melted at 270°C to obtain a core layer melt; Spinning: The skin melt and the core layer melt are added to the skin-core composite spinning machine for spinning, and are hot stretched and shaped at 160°C. The skin layer melt forms a skin structure, and the core layer melt forms a core structure to obtain a high-functional titanium fiber; the weight ratio of the skin structure to the core layer structure is 30:70.

[0033] Example 4 The difference between Example 4 and Example 2 is that the silver ion-loaded zeolite is the silver ion-loaded zeolite in Preparation Example 2, and the remaining steps are consistent with Example 2.

[0034] Example 5 The difference between Example 5 and Example 2 is that the silver ion-loaded zeolite is the silver ion-loaded zeolite in Preparation Example 3, and the remaining steps are consistent with Example 2.

[0035] Example 6 The difference between Example 6 and Example 4 is that, in melt preparation, 98.5 kg of polyester fiber, 1.5 kg of nano-titanium dioxide, 0.75 kg of nano-zinc oxide, and 0.2 kg of polyethylene glycol are melt-blended at 265°C to obtain a skin layer melt; the core layer material is melted at 270°C to obtain a core layer melt; the remaining steps are consistent with Example 4.

[0036] Example 7 The difference between Example 7 and Example 6 is that, in granulation, 82 kg of polyester fiber, 19 kg of nano-titanium dioxide, 2.5 kg of silver ion-loaded zeolite in Preparation Example 1, 6.5 kg of phase change material microcapsules, and 0.2 kg of modified graphene in Preparation Example 4 are blended and granulated at 250°C to obtain a core layer material; the remaining steps are consistent with Example 6.

[0037] Example 8 The difference between Example 8 and Example 6 is that, in granulation, 82 kg of polyester fiber, 19 kg of nano-titanium dioxide, 2.5 kg of silver ion-loaded zeolite in Preparation Example 1, 6.5 kg of phase change material microcapsules, and 0.2 kg of modified graphene in Preparation Example 5 are blended and granulated at 250°C to obtain a core layer material; the remaining steps are consistent with Example 6.

[0038] Example 9 The difference between Example 9 and Example 6 is that, in granulation, 82 kg of polyester fiber, 19 kg of nano-titanium dioxide, 2.5 kg of silver ion-loaded zeolite in Preparation Example 1, 6.5 kg of phase change material microcapsules, and 0.2 kg of modified graphene in Preparation Example 6 are blended and granulated at 250°C to obtain a core layer material; the remaining steps are consistent with Example 6.

[0039] Example 10 The difference between Example 10 and Example 8 is that in the spinning step, the weight ratio of the skin structure to the core structure is 35:65; The remaining steps are consistent with Example 8.

[0040] Example 11 The difference between Example 11 and Example 8 is that in the spinning step, the weight ratio of the skin structure to the core structure is 40:60; The remaining steps are consistent with Example 8.

[0041] Comparative Example Comparative Example 1 Comparative Example 1 provides a method for preparing titanium fiber, comprising the following steps: Granulation: 108 kg of polyester fiber, 57 kg of polyamide fiber, and 19 kg of nano-titanium dioxide were blended and granulated at 250° C. to obtain a primary material; Melt preparation: melt the initial material at 270°C to obtain a melt; Spinning: The melt is added to a spinning machine for spinning, and then heat-stretched and shaped at 160°C to obtain titanium fiber.

[0042] Application Examples Application Example 1 Application Example 1 provides a method for preparing sun-protective clothing fabric, comprising the following steps: The high-function titanium fiber in Example 1 was selected as the warp and weft threads for weaving to obtain a sun-protective clothing fabric with a warp and weft density of 30D / 24F*30D / 24F / 220*180 threads / inch.

[0043] Application Example 2-11 The difference between Application Example 2-11 and Application Example 1 is that the selection of high-function titanium fiber is different, see Table 1 for details.

[0044] Table 1 Selection of high-performance titanium fiber sample High-performance titanium fiber Application Example 2 Example 2 Application Example 3 Example 3 Application Example 4 Example 4 Application Example 5 Example 5 Application Example 6 Example 6 Application Example 7 Example 7 Application Example 8 Example 8 Application Example 9 Example 9 Application Example 10 Example 10 Application Example 11 Example 11 Comparative Application Examples Comparative Application Example 1 Comparative Application Example 1 provides a method for preparing sun-protective clothing fabric, comprising the following steps: The titanium fiber in Comparative Example 1 was used as the warp and weft threads for weaving to obtain a sun-protection clothing fabric with a warp and weft density of 30D / 24F*30D / 24F / 220*180 threads / inch.

[0045] Performance testing Anti-ultraviolet performance: According to GB / T18830-2009, the UPF value of the sun-protective clothing fabric in each application example and comparative application example is tested. The larger the UPF value, the better the anti-ultraviolet performance of the fabric.

[0046] Heat-shielding property: The infrared reflectivity of the sun-protective clothing fabrics in each application example and comparative application example was tested according to ISO 6942. The higher the infrared reflectivity, the better the heat-shielding property of the fabric.

[0047] Antibacterial property: According to AATCC 100, the sunscreen clothing fabrics in each application example and comparative application example were subjected to antibacterial testing after being washed 100 times to obtain the antibacterial rate of Staphylococcus aureus. The higher the antibacterial rate, the better the antibacterial property of the fabric.

[0048] Cool feeling: The Q-max value of the sun protection clothing fabric in each application example and comparative application example was tested according to JIS L 1917. The larger the Q-max value, the stronger the cool feeling of the fabric.

[0049] Table 2 Fabric performance test results Combining Application Examples 1-3 and Comparative Application Example 1, it can be seen that the high-functional titanium fiber in this application adopts a double-layer composite fiber, a small amount of nano-titanium dioxide is added to the skin structure, and a larger amount of nano-titanium dioxide is added to the core structure, and is combined with silver ion-loaded zeolite. The fabric made using the high-functional titanium fiber in this application has good UV protection, heat shielding, and antibacterial properties.

[0050] In combination with Application Example 2, Application Example 4 and Application Example 5, it can be seen that when preparing silver ion-loaded zeolite, the performance of the silver ion-loaded zeolite obtained by following the preparation conditions in Preparation Examples 1-3 is better.

[0051] Combining Application Example 4 and Application Example 6, the fabric in Application Example 6 has better UV protection and heat shielding properties. It can be seen that when preparing the skin melt, adding nano zinc oxide and polyethylene glycol to the raw materials can further improve the UV protection and heat shielding properties of the fabric.

[0052] Combining Application Example 6 and Application Example 7, the heat-shielding performance of the fabric in Application Example 7 is better. It can be seen that when preparing the core layer material, adding phase change material microcapsules and modified graphene to the raw materials can further improve the heat-shielding performance of the fabric.

[0053] Combined with Application Examples 7-9, it can be seen that when preparing modified graphene, according to the ratio of the treatment liquid and nanographene in Preparation Examples 4-6, the performance of the modified graphene obtained is better.

[0054] Combining Application Examples 8, 10, and 11, the performance of the fabric in Application Example 10 is the best. It can be seen that when preparing high-functional titanium fiber, the ratio of the skin structure and the core structure in Application Example 10 is the best, thus obtaining the best performance of the fabric.

[0055] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A high-function titanium fiber with a skin-core structure, characterized by: It includes a skin structure and a core structure; the raw materials of the skin structure include the following components in parts by weight: 98-99 parts of fiber and 1-2 parts of nano titanium dioxide; the raw materials of the core structure include 78-86 parts of fiber, 18-20 parts of nano titanium dioxide and 2-3 parts of silver ion loaded zeolite.

2. The high-function titanium fiber with a skin-core structure according to claim 1, characterized in that: The preparation method of the silver ion loaded zeolite comprises the following steps: Pretreatment: Soak the nano zeolite in a hydrochloric acid solution, stir at 75-85°C for 1.5-2.5 hours, then wash and dry to obtain pretreated zeolite; Preparation of silver ion solution: Dissolve silver nitrate in deionized water, add sodium citrate, and stir to mix well to obtain a silver ion solution; Ion exchange: The pretreated zeolite is immersed in a silver ion solution, magnetically stirred under heating conditions, the pH is controlled at 5.5-6.5, and ultrasonic treatment is performed during stirring to obtain a mixed solution; Post-treatment: The mixed solution is centrifuged to obtain loaded particles, which are then washed and added to an ascorbic acid solution, stirred, filtered, and dried to obtain silver ion loaded zeolite.

3. The high-function titanium fiber with a skin-core structure according to claim 2, characterized in that: In the ion exchange step, the solid-liquid ratio is 1:15, the heating temperature is 50-60° C., and the stirring time is 4-6 hours.

4. The high-function titanium fiber with a skin-core structure according to claim 1, characterized in that: The raw materials of the skin structure further include 0.5-1 parts by weight of nano zinc oxide and 0.1-0.3 parts by weight of polyethylene glycol.

5. The high-function titanium fiber with a skin-core structure according to claim 1, characterized in that: The raw materials of the core layer structure further include 5 to 8 parts by weight of phase change material microcapsules and 0.1 to 0.3 parts by weight of modified graphene.

6. The high-function titanium fiber with a skin-core structure according to claim 5, characterized in that: The preparation method of the modified graphene comprises the following steps: γ-aminopropyltriethoxysilane, ethanol, and water are stirred and mixed to obtain a treatment solution; The nanographene is stirred, and a treatment liquid is sprayed during the stirring process. After the spraying is completed, the stirring is continued and the graphene is dried to obtain modified graphene.

7. The high-function titanium fiber with a skin-core structure according to claim 6, characterized in that: The weight ratio of the treatment liquid to the nanographene is 1:(13-14).

8. A method for preparing a high-function titanium fiber with a skin-core structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: Granulation: Blending and granulating the fibers, nano-titanium dioxide, silver ion loaded zeolite and other raw materials to obtain the core layer material; Melt preparation: melt-blending the fiber, nano-titanium dioxide and other raw materials to obtain a skin melt; melting the core layer material to obtain a core layer melt; Spinning: The skin layer melt and the core layer melt are added to the skin-core composite spinning machine for spinning and heat setting. The skin layer melt forms a skin structure and the core layer melt forms a core structure to obtain high-functional titanium fiber.

9. The method for preparing a high-functional titanium fiber with a skin-core structure according to claim 8, characterized in that: The weight ratio of the skin structure and the core structure in the high-functional titanium fiber is (30-40): (60-70).

10. A fabric, characterized in that: The fabric is made of the high-functional titanium fiber with a skin-core structure according to any one of claims 1 to 7, and the fabric can be used for the preparation of sun-proof clothing, jackets, T-shirts, shirts, pants, baby clothing, and home textiles.

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