Textile auxiliary agent for producing weather-resistant polyester staple fibers

Abstract

The invention belongs to the field of textile auxiliaries, and particularly discloses a textile auxiliary for producing weather-resistant polyester staple fibers, which is composed of cetyl alcohol polyoxyethylene ether, potassium (1-octadecyl) phosphate, polyoxyethylene polyoxypropylene laurate, a nano additive, an ultraviolet light absorber, a cross-linking agent, a thickening agent and an antioxidant. The weather resistance is excellent. The preparation method comprises the steps of pretreatment, preliminary mixing, nano additive adding, functional adding, antioxidant adding, homogenizing, filtering and the like. During production of polyester staple fibers, the auxiliary agent is added into a spinning solution according to the proportion of 1%-3%, the auxiliary agent is uniformly dispersed and effectively plays a role by controlling the spinning temperature, and the weather resistance of the polyester staple fibers is improved.

Description

Technical Field

[0001] The invention belongs to the field of textile auxiliaries, and specifically discloses a textile auxiliaries for producing weather-resistant polyester staple fibers. Background Art

[0002] In the textile industry, polyester staple fibers are favored for their excellent physical properties and wide range of applications. However, as the use environment of textiles becomes increasingly complex, the weather resistance requirements for polyester staple fibers are becoming increasingly higher. Traditional polyester staple fibers often lack effective measures to improve weather resistance during the production process, which leads to aging, fading, brittleness and other problems in outdoor or harsh environments, which seriously limits their application range and service life.

[0003] In order to overcome this technical difficulty, researchers are constantly exploring various methods to improve the weather resistance of polyester staple fibers. Among them, adding textile auxiliaries is considered to be an effective solution. Textile auxiliaries can improve the surface properties of polyester staple fibers, enhance their adaptability to the environment, and improve their overall weather resistance. However, there are many types of textile auxiliaries on the market with different performances, and most of them have complex ingredients, cumbersome preparation processes, and high costs, which make it difficult to meet the needs of large-scale industrial production.

[0004] Therefore, it is particularly important to develop a textile auxiliary with simple ingredients, simple preparation process, low cost and the ability to effectively improve the weather resistance of polyester staple fibers. Summary of the invention

[0005] Based on the deficiencies in the prior art, the invention discloses a textile auxiliary for producing weather-resistant polyester staple fibers.

[0006] The present invention includes the following technical solutions:

[0007] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0008]

[0009]

[0010] Cetyl alcohol polyoxyethylene ether has good foam stability and detergency; potassium phosphate (1-octadecyl) ester (similar to potassium cetyl phosphate) can provide additional emulsification, foaming and thickening effects, and due to its mildness, it has little irritation to the skin.

[0011] Polyoxyethylene polyoxypropylene laurate can help improve the stability and dispersibility of the product, while providing a certain emollient effect, making the textiles softer and more comfortable during processing and use.

[0012] Further, in the above-mentioned textile auxiliary agent for the production of weather-resistant polyester staple fibers, the mass ratio of cetyl alcohol polyoxyethylene ether to potassium phosphate (1-octadecyl) ester is 2: 1. In some embodiments, we found that when the mass ratio of cetyl alcohol polyoxyethylene ether to potassium phosphate (1-octadecyl) ester is 2: 1, the performance of the auxiliary agent is the best.

[0013] Furthermore, in the textile auxiliary agent for producing weather-resistant polyester staple fibers, the nano additive is selected from nano silicon dioxide or nano zinc oxide. The nano additive can enhance the mechanical properties of the fiber, improve dyeing uniformity, and improve antistatic properties and weather resistance.

[0014] Furthermore, in the above-mentioned textile auxiliary agent for the production of weather-resistant polyester staple fibers, the ultraviolet absorber is preferably Chimassorb 81.

[0015] Furthermore, in the textile auxiliary agent for the production of weather-resistant polyester staple fibers, the crosslinking agent is preferably trimethylolpropane triacrylate. The crosslinking agent can form bridge bonds between fiber molecular chains, connecting linear molecules to each other to form a network structure, thereby improving the strength, heat resistance, wear resistance and solvent resistance of the fiber.

[0016] Furthermore, in the above-mentioned textile auxiliary agent for the production of weather-resistant polyester staple fibers, the thickener is preferably RHEOBYK-HV 80. The thickener is mainly used to increase the viscosity and consistency of the textile auxiliary agent, making it more stable and uniform during use. It can help improve the fluidity, dispersibility and coating properties of the product, thereby ensuring that the auxiliary agent can be evenly distributed on the fiber surface to achieve the best processing effect.

[0017] Furthermore, in the above textile auxiliary agent for the production of weather-resistant polyester staple fibers, the antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate: potassium iodide: rare earth stearate is 3:3:2. In some embodiments, we found that by adding a specific ultraviolet absorber Chimassorb 81 and an antioxidant, the textile auxiliary agent significantly enhances the resistance of polyester staple fibers to ultraviolet rays and oxidation.

[0018] Furthermore, the present invention discloses a method for preparing the above-mentioned textile auxiliary agent for producing weather-resistant polyester staple fibers, comprising the following steps:

[0019] S1 pretreatment: Disperse 1 part of the nano additive in 5-10 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0020] S2 Preliminary Mixing:

[0021] In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0022] S3 nano additives added:

[0023] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0024] S4 added functionality:

[0025] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0026] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0027] S5 Antioxidant Addition and Homogenization:

[0028] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0029] S6 Filtering:

[0030] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0031] The present invention also discloses the application of the above-mentioned textile auxiliary agent in the production of polyester staple fibers, comprising the following steps: in the spinning process of the polyester staple fibers, the auxiliary agent is added into the spinning solution at a weight ratio of 1% to 3%; the spinning solution is spun through a spinning machine to form polyester staple fibers containing the auxiliary agent.

[0032] Furthermore, in the above application, the spinning temperature is controlled between 260° C. and 280° C. during the spinning process so that the additive is evenly dispersed and effectively functions.

[0033] Compared with the prior art, the present invention has the following outstanding beneficial effects:

[0034] The weather-resistant polyester staple fiber production textile auxiliary agent of the present invention significantly improves the weather resistance of polyester staple fiber through a carefully designed formula and preparation process. Specifically, the auxiliary agent effectively improves the surface properties of the fiber by introducing a specific ratio mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, as well as surfactants such as lauric acid polyoxyethylene polyoxypropylene ester, and enhances the water resistance, oil resistance and chemical resistance of the fiber. At the same time, the uniform dispersion of nano additives such as nano silicon dioxide or nano zinc oxide not only improves the mechanical strength of the fiber, but also gives the fiber excellent ultraviolet shielding ability. The addition of ultraviolet absorbers such as Chimassorb 81 further enhances the fiber's resistance to ultraviolet rays and prevents the fiber from aging due to ultraviolet radiation. In addition, trimethylolpropane triacrylate, as a cross-linking agent, promotes the firm combination of the auxiliary agent component and the fiber matrix, and improves the durability and stability of the auxiliary agent. The use of RHEOBYK-HV 80 thickener optimizes the rheological properties of the auxiliary agent and ensures the uniform distribution of the auxiliary agent during the spinning process. The careful proportion of antioxidants effectively extends the service life of the fiber and prevents oxidative degradation. The preparation method of this additive is simple and efficient. Ultrasonic treatment and fine stirring ensure the uniform mixing of the ingredients and the effective dispersion of the nanoparticles. The application in the production of polyester staple fibers shows that this additive can significantly improve the weather resistance and comprehensive performance of the fiber, providing an excellent material choice for high-demand fields such as outdoor textiles. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Comparison of the surface friction coefficient (dynamic friction coefficient μk) of the fabrics of Examples 1-3 and Comparative Examples 1-3;

[0036] Figure 2 Comparison of the wear resistance (cycle) of the fabrics of Examples 1-3 and Comparative Examples 1-3;

[0037] Figure 3 Comparison of the tensile strength (Mpa) of the fabrics of Examples 1-3 and Comparative Examples 1-3. DETAILED DESCRIPTION

[0038] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0039]

[0040] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:1-3:1;

[0041] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0042] The ultraviolet absorber is preferably Chimassorb 81;

[0043] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0044] The thickener is preferably RHEOBYK-HV 80;

[0045] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0046] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0047] S1 pretreatment: Disperse 1 part of the nano additive in 5-10 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0048] S2 Preliminary Mixing:

[0049] In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0050] S3 nano additives added:

[0051] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0052] S4 added functionality:

[0053] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0054] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0055] S5 Antioxidant Addition and Homogenization:

[0056] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0057] S6 Filtering:

[0058] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0059] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Example 1

[0061] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0062]

[0063] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:1;

[0064] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0065] The ultraviolet absorber is preferably Chimassorb 81;

[0066] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0067] The thickener is preferably RHEOBYK-HV 80;

[0068] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate: potassium iodide: rare earth stearate is 3:3:2;

[0069] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0070] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0071] S2 Preliminary Mixing:

[0072] In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0073] S3 nano additives added:

[0074] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0075] S4 added functionality:

[0076] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0077] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0078] S5 Antioxidant Addition and Homogenization:

[0079] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0080] S6 Filtering:

[0081] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0082] Example 2

[0083] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0084]

[0085] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:2;

[0086] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0087] The ultraviolet absorber is preferably Chimassorb 81;

[0088] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0089] The thickener is preferably RHEOBYK-HV 80;

[0090] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0091] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0092] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0093] S2 Preliminary Mixing:

[0094] In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0095] S3 nano additives added:

[0096] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0097] S4 added functionality:

[0098] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0099] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0100] S5 Antioxidant Addition and Homogenization:

[0101] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0102] S6 Filtering:

[0103] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0104] Example 3

[0105] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0106]

[0107]

[0108] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:3;

[0109] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0110] The ultraviolet absorber is preferably Chimassorb 81;

[0111] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0112] The thickener is preferably RHEOBYK-HV 80;

[0113] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0114] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0115] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0116] S2 Preliminary Mixing:

[0117] In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0118] S3 nano additives added:

[0119] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0120] S4 added functionality:

[0121] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0122] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0123] S5 Antioxidant Addition and Homogenization:

[0124] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0125] S6 Filtering:

[0126] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0127] Comparative Example 1

[0128] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0129]

[0130] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0131] The ultraviolet absorber is preferably Chimassorb 81;

[0132] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0133] The thickener is preferably RHEOBYK-HV 80;

[0134] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0135] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0136] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0137] S2 Preliminary Mixing:

[0138] In a reaction kettle equipped with a stirrer, first add potassium 1-octadecyl phosphate and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0139] S3 nano additives added:

[0140] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0141] S4 added functionality:

[0142] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0143] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0144] S5 Antioxidant Addition and Homogenization:

[0145] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0146] S6 Filtering:

[0147] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0148] This comparative example does not contain cetyl alcohol polyoxyethylene ether, and the rest is the same as Example 2.

[0149] Comparative Example 2

[0150] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0151]

[0152] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:2;

[0153] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0154] The ultraviolet absorber is preferably Chimassorb 81;

[0155] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0156] The thickener is preferably RHEOBYK-HV 80;

[0157] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0158] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0159] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0160] S2 Preliminary Mixing:

[0161] In a reaction kettle with a stirrer, first add cetyl alcohol polyoxyethylene ether and lauric acid polyoxyethylene polyoxypropylene ester, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0162] S3 nano additives added:

[0163] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0164] S4 added functionality:

[0165] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0166] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0167] S5 Antioxidant Addition and Homogenization:

[0168] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0169] S6 Filtering:

[0170] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0171] This comparative example does not contain potassium phosphate (1-octadecyl) ester, and the rest is the same as Example 2.

[0172] Comparative Example 3

[0173] A textile auxiliary for producing weather-resistant polyester staple fibers, the auxiliary comprising the following components by weight:

[0174]

[0175]

[0176] The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 1:2;

[0177] The nano additive is selected from nano silicon dioxide or nano zinc oxide;

[0178] The ultraviolet absorber is preferably Chimassorb 81;

[0179] The crosslinking agent is preferably trimethylolpropane triacrylate;

[0180] The thickener is preferably RHEOBYK-HV 80;

[0181] The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:2.

[0182] The preparation method of the textile auxiliary agent for producing weather-resistant polyester staple fibers comprises the following steps:

[0183] S1 pretreatment: Disperse 1 part of nano additive in 8 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps;

[0184] S2 Preliminary Mixing:

[0185] In a reaction kettle equipped with a stirrer, add polyoxyethylene polyoxypropylene laurate and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform;

[0186] S3 nano additives added:

[0187] Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration;

[0188] S4 added functionality:

[0189] Slowly add the pre-mixed mixture of ultraviolet absorber and thickener into the reaction kettle and continue stirring at 300-400 rpm until a uniform transparent liquid is formed;

[0190] Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours;

[0191] S5 Antioxidant Addition and Homogenization:

[0192] Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system;

[0193] S6 Filtering:

[0194] The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

[0195] This comparative example does not contain the mixture of cetyl alcohol polyoxyethylene ether and 1-octadecyl phosphate potassium salt.

[0196] Test Case

[0197] The textile auxiliaries prepared in Examples 1-3 and Comparative Examples 1-3 are used in the following method: in the spinning process of polyester staple fibers (1.5D*38MM), the auxiliaries are added to the spinning solution at a weight ratio of 2%; the spinning solution is spun through a spinning machine, and the spinning temperature is controlled between 260°C and 280°C during the spinning process to form polyester staple fibers containing the auxiliaries, which are then woven into pure polyester fabrics.

[0198] The surface friction coefficient and wear resistance are tested. The wear resistance is tested using the GB / T15-92 test method and the friction cycle required under the same wear is used for evaluation.

[0199] At the same time, the flame retardancy and tensile strength of the test were tested by vertical combustion. The test results are shown in Table 1 and Figure 1-3 shown.

[0200] Table 1 Performance test

[0201]

[0202] From Table 1 and Figure 1-3 It can be seen from the content that the textile auxiliary agent disclosed in the present invention can give polyester staple fiber fabrics excellent friction coefficient, wear resistance, good tensile strength and flame retardancy. From the data of Example 2 and Comparative Examples 1-3, it can be seen that by mixing cetyl alcohol polyoxyethylene ether and potassium (1-octadecyl) phosphate, the performance of the textile auxiliary agent can be comprehensively improved. In contrast, similar performance cannot be obtained by using cetyl alcohol polyoxyethylene ether or potassium (1-octadecyl) phosphate alone. Therefore, it can be concluded that the mixing of cetyl alcohol polyoxyethylene ether and potassium (1-octadecyl) phosphate has synergistic effect.

[0203] In summary, the application in polyester staple fiber production shows that this additive can significantly improve the weather resistance and comprehensive performance of the fiber, providing an excellent material option for high-demand fields such as outdoor textiles.

[0204] The above are only a few preferred embodiments of the present invention, which are described in a more specific and detailed manner, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A textile auxiliary for the production of weather-resistant polyester staple fibers, characterized in that: Calculated by weight, the additive includes the following components: 25-35 parts of a mixture of cetyl alcohol polyoxyethylene ether and potassium phosphate (1-octadecyl) ester 15-25 parts of polyoxyethylene polyoxypropylene laurate Nano additives 5-10 parts 3-6 parts of UV absorber Crosslinking agent 10-20 parts Thickener 5-10 parts 1-2 servings of antioxidants.

2. A textile auxiliary agent for the production of weather-resistant polyester staple fibers according to claim 1, characterized in that: The mass ratio of the cetyl alcohol polyoxyethylene ether to the potassium salt of (1-octadecyl) phosphate is 2:

1.

3. The textile auxiliary agent for producing weather-resistant polyester staple fibers according to claim 1, characterized in that: The nano additive is selected from nano silicon dioxide or nano zinc oxide.

4. The textile auxiliary agent for producing weather-resistant polyester staple fibers according to claim 1, characterized in that: The ultraviolet absorber is preferably Chimassorb 81.

5. The textile auxiliary agent for producing weather-resistant polyester staple fibers according to claim 1, characterized in that: The crosslinking agent is preferably trimethylolpropane triacrylate.

6. The textile auxiliary agent for producing weather-resistant polyester staple fibers according to claim 1, characterized in that: The thickener is preferably RHEOBYK-HV 80.

7. The textile auxiliary agent for producing weather-resistant polyester staple fibers according to claim 1, characterized in that: The antioxidant is a mixture of copper acetate, potassium iodide and rare earth stearate; the mass ratio of copper acetate:potassium iodide:rare earth stearate is 3:3:

2.

8. The method for preparing a textile auxiliary agent for producing weather-resistant polyester staple fibers according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1 pretreatment: Disperse 1 part of the nano additive in 5-10 parts of propylene glycol by mass, and stir by ultrasonic treatment to form a uniform and stable nano dispersion; premix the ultraviolet absorber with the thickener to ensure uniform distribution in subsequent steps; S2 Preliminary Mixing: In a reaction kettle with a stirrer, first add a mixture of cetyl alcohol polyoxyethylene ether and potassium salt of (1-octadecyl) phosphate, and polyoxyethylene polyoxypropylene laurate, and stir at 100-200 rpm until the mixture is preliminarily mixed and uniform; S3 nano additives added: Under continuous stirring, slowly add the pre-treated nano-additive dispersion dropwise, and increase the stirring speed to 300-400rpm to ensure that the nanoparticles are evenly dispersed in the system to avoid agglomeration; S4 added functionality: Slowly add the pre-mixed UV absorber and thickener mixture into the reactor and continue stirring at 300-400 rpm until a uniform transparent liquid is formed; Subsequently, a cross-linking agent was added, the temperature was controlled at 50-60°C to promote the cross-linking reaction, and the mixture was stirred at 100-200 rpm for 1-2 hours; S5 Antioxidant Addition and Homogenization: Keep the temperature constant, add antioxidants, and stir at 500-1000rpm to ensure that all components are fully integrated to form a uniform and stable additive system; S6 Filtering: The prepared additive is filtered with a pore size of 10-20 μm to remove possible impurities or incompletely dispersed particles.

9. The use of the textile auxiliary agent according to any one of claims 1 to 7 in the production of polyester staple fibers, characterized in that: The following steps are involved: In the spinning process of polyester staple fibers, the auxiliary agent is added into the spinning solution at a weight ratio of 1% to 3%; the spinning solution is spun through a spinning machine to form polyester staple fibers containing the auxiliary agent.

10. The use according to claim 9, characterized in that: During the spinning process, the spinning temperature is controlled between 260°C and 280°C so that the additives are evenly dispersed and can function effectively.

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