A method for preparing functional submicron cotton textiles

Abstract

The present invention relates to a method for preparing functional submicron cotton textiles, which comprises pre-treating the submicron cotton textiles, finishing with functional additives, washing, drying and dropping the textiles. After the submicron textiles of the present invention have functional, antibacterial and comfortable properties compared with traditional textiles after the functional finishing unit, and the production process is short, efficient and low in consumption, and the processing process is green and environmentally friendly, giving the submicron textiles special functions.

Description

Technical Field

[0001] The invention belongs to the field of functional fabrics, and particularly relates to a method for preparing functional submicron cotton textiles. Background Art

[0002] After the epidemic, people's attention to functional textile products continues to rise. Generally, fabrics are given functions such as no-ironing, anti-wrinkle, and sterilization through post-finishing, which can improve the added value of traditional textiles and are of great concern to consumers. In the prior art, fabrics are generally given functionality and comfort through post-finishing, coating, mercerizing, liquid ammonia finishing, etc., which have the following problems: (1) The function is single; (2) The process is complicated and requires a lot of labor; (3) If multiple functions are given to the fabric at the same time, it is necessary to go through a series of processes after one process to carry out the next functional finishing. Such repeated finishing increases the number of washing and drying times, causing fabric damage and energy waste, and the accuracy is poor. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for preparing functional submicron cotton textiles.

[0004] A method for preparing a functional submicron cotton textile of the present invention comprises:

[0005] Submicron cotton textiles are pre-treated, then finished with functional additives, washed, dried and laid.

[0006] The mass percentage content of submicron acrylic fiber in the submicron cotton textile is 0.5% to 5%, the fiber diameter is 100 to 500nm, and the mass percentage content of cotton is 95% to 99.5%.

[0007] The preparation of the submicron cotton textile comprises: using electrostatic spinning technology to load submicron fibers onto a cotton net during a cotton carding process, and then spinning and weaving to obtain the submicron cotton textile; wherein the spinning solution used in the electrostatic spinning comprises a polyacrylonitrile solution having a mass percentage concentration of 95% to 99.5%, and the solvent is N,N-dimethylformamide;

[0008] The electrostatic spinning process parameters are: the electrostatic spinning applied voltage is 30-60KV, the receiving distance is 5-50cm, the spinning temperature is 20-35°C, and the relative humidity is 10-60%.

[0009] The spinning solution also contains an antibacterial agent, and the amount of the antibacterial agent is 0.1%-1% of the mass of the submicron cotton textile.

[0010] The pretreatment includes uncoiling, pre-baking, air cooling, liquid ammonia impregnation, felting and steaming; wherein the uncoiling padding pressure is 0.5-5 bar, the pre-baking is 60-100° C., the air volume of air cooling is 50-100%, the liquid ammonia impregnation time is 0.1-1 s, the felt padding pressure is 0.5-5 bar, and the steaming is 100-150° C.

[0011] The functional additive is one or more of an antibacterial finishing agent, an anti-ultraviolet finishing agent, and a collagen finishing agent.

[0012] The antibacterial finishing agent comprises: plant components, silver ion / zinc ion composite metal salt, organic quaternary ammonium salt compound; the dosage of the antibacterial finishing agent is; 2.5-10g / L. The dosage of the plant components, organic quaternary ammonium salt compound, and silver ion / zinc ion composite metal salt respectively accounts for 45%-55%, 5%-15%, and 30%-45% of the antibacterial finishing agent. The plant components comprise basil extract and clove essential oil, and the dosage of basil extract and clove essential oil is 30-50% and 50-70% of the plant components respectively. The dosage of the silver ion metal salt and the zinc ion metal salt respectively accounts for 33-50% and 50-67% of the dosage of the composite metal salt; the silver ion metal salt is at least one of silver phosphate and silver nitrate; the zinc ion metal salt is at least one of zinc phosphate and zinc nitrate. The organic quaternary ammonium salt compound is any one of hexadecyltrimethylammonium bromide (CTAB) and hexadecyltrimethylphenylammonium chloride (CPC).

[0013] The anti-ultraviolet finishing agent comprises nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid; wherein the amount of the anti-ultraviolet finishing agent is 2-5 g / L. The amount of nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid accounts for 17-40%, 14-32%, 6-23%, 2-5%, and 23-40% of the amount of the anti-ultraviolet finishing agent, respectively. The crosslinking agent is an organic polycarboxylic acid, i.e., any one of citric acid, tartaric acid, and lactic acid; and the penetrant is any one of fatty alcohol polyoxyethylene ether JFC and peregal O.

[0014] The collagen finishing agent is compounded with chitosan and collagen, and the dosage of the collagen finishing agent is 2-5 g / L, wherein the dosage of chitosan and collagen accounts for 40-60% and 40-60% of the collagen finishing agent respectively.

[0015] The functional additive finishing is padding finishing, the dipping roller pressure is 1.5-2.5N, the roller pressure speed parameter running speed is 45-65 m / min; the washing temperature is 35-55°C; the drying temperature is 60-100°C.

[0016] The device used in the preparation method of the present invention comprises an unwinding unit, a pre-drying unit, an air cooling unit, a liquid ammonia impregnation unit, a felt blanket unit, a steaming unit, a functional finishing unit, a water washing unit, a drying unit, and a cloth dropping unit in sequence; wherein the functional finishing unit is provided with three leather rollers and an impregnation tank.

[0017] The surfaces of the three rollers are covered with rubber, which has adsorption properties and acid and alkali resistance.

[0018] A functional finishing agent may be added into the dipping tank.

[0019] The positions of the three rollers are movable and the speeds are adjustable, so as to meet the required immersion and pressure amounts for different functional finishing.

[0020] There is at least one functional arrangement unit.

[0021] The present invention discloses a functional submicron cotton textile prepared by the method.

[0022] By using functional submicron cotton textiles and micro-nano fibers as functional carriers, antibacterial and other functions can be added.

[0023] 1. Fabric finishing goes through: unwinding unit → pre-drying unit → air cooling unit → liquid ammonia impregnation unit → felt unit → steaming unit → [functional finishing unit] → washing unit → drying unit → cloth dropping unit. In the functional finishing unit, functional additives can be applied, and then washing, drying and dropping the cloth complete the entire functional finishing process.

[0024] 2. The functional finishing unit is constructed as follows: three leather rollers and an impregnation tank, wherein the pressure of the three leather rollers is controlled by a computer and adjusted relatively according to the tension of the output fabric surface. Specifically, the pressure of the leather rollers and the height of the leather rollers can be adjusted. The specific process is that there is a functional finishing agent in the impregnation tank (applicable to odor freshening adsorption finishing agent, skin care aloe finishing, skin care soft finishing, anti-mosquito finishing, etc.); 3. During the functional finishing process, the computer controls the impregnation time and the height of the impregnation tank, thereby controlling the impregnation amount of the functional liquid; after washing, drying, and cloth dropping units, the whole functional sub-micron cotton textile is finished for long-lasting comfort.

[0025] Beneficial Effects

[0026] In the present invention, through this finishing method, liquid ammonia finishing significantly improves the performance of cotton fabrics, making them softer, smoother, more lustrous, and less prone to wrinkles, thereby increasing the added value of textiles; quantitative and qualitative functional finishing control can also be carried out in a targeted manner. The advantages are precise control, environmental protection, energy saving, and waste reduction.

[0027] The method provided by the present invention can realize the long-lasting functionality of textiles. Nano yarns with antibacterial functionality are prepared based on electrospinning technology, and green and efficient anti-ultraviolet finishing agents, collagen finishing agents and functional finishing units are combined to prepare cotton fabrics with antibacterial and anti-ultraviolet functions through padding, drying and high-temperature baking. The prepared fabric has high efficiency and long-lasting anti-ultraviolet performance, and the antibacterial rate reaches more than 99.5%. After washing 20 times, the antibacterial property is still above 70%.

[0028] The present invention is environmentally friendly, energy-saving and reduces waste. Since the functional finishing unit can achieve quantitative and precise finishing of different fabric thicknesses, densities and fabric structures by controlling the speed, padding strength and the amount of functional finishing agent used while processing the fabric; at the same time, in the integrated finishing process, the fabric conveying, washing and drying processes can be completed together without repeated processing, thus saving energy and protecting the environment and reducing waste.

[0029] The functional finishing unit of the present invention realizes quantitative and refined control process, which is specifically embodied as follows: the feeding roller probe detects the thickness, density, tightness, etc. of the fabric, converts the signal into an electrical signal and transmits it to the controller, and the controller automatically adjusts the speed and rolling force according to the high-speed and low-speed processes, thereby realizing accurate and effective finishing.

[0030] The green and efficient antibacterial finishing agent of the present invention is prepared by compounding natural plant components of clove essential oil and basil extract, silver ion / zinc ion composite metal salt and organic quaternary ammonium salt compound. The basil extract in the plant component contains volatile oil and flavonoids and has antibacterial and antioxidant effects. The clove essential oil can inhibit the growth of bacteria and fungi and has antiviral and anti-inflammatory effects. The silver ion metal salt can inhibit the growth of bacteria. The zinc ion metal salt and the organic quaternary ammonium salt compound can interfere with the bacterial metabolic process. The multiple antibacterial components can produce a synergistic effect, so that the antibacterial effect is better, and the pollution of the antibacterial agent to the environment is reduced, and the biodegradability of the antibacterial textile is improved.

[0031] The green and efficient anti-ultraviolet finishing agent of the invention is prepared by compounding nano zinc oxide with chitosan, a crosslinking agent and a penetrant in a certain proportion. The anti-ultraviolet finishing agent is green and efficient, and solves the problems of poor washing fastness, poor durability and poor moisture permeability of traditional anti-ultraviolet textiles.

[0032] The green and efficient collagen finishing agent of the present invention is prepared by compounding a multifunctional fiber processing agent with a moisturizing component. The finishing agent is green and efficient, and the finished textile has a lasting luster like silk and a comfortable touch like wool.

[0033] After the submicron textile of the present invention has passed through the functional finishing unit, it has functionality, antibacterial properties and comfort compared with traditional textiles, and the production process is short, efficient and low-consumption, and the processing process is eco-friendly and environmentally friendly. It gives the submicron textile fabric special functions and achieves precise saving control, ultimately making the functional submicron textile have a silk-like lasting luster, wool-like comfortable touch and long-lasting UV resistance as well as special functional care effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a method for providing durable comfort to functional submicron cotton textiles;

[0035] Figure 2 Schematic diagram of the control unit. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0037] The method for finishing textiles for long-lasting comfort in the embodiment is specifically as follows: unwinding unit → pre-drying unit → air cooling unit → impregnation and pressing of liquid ammonia unit → felt blanket unit → steaming unit → [functional finishing unit] → washing unit → drying unit → cloth dropping unit. The functional finishing unit includes three leather rollers and an impregnation tank, and the finishing speed, height and pressure of the leather rollers are adjustable.

[0038] Main reagent raw materials: polyacrylonitrile (PAN) (Shanghai Sinopharm Chemical Reagent Co., Ltd.), N,N-dimethylformamide (DMF) (Shanghai Sinopharm Chemical Reagent Co., Ltd.), hexadecyltrimethylammonium bromide (CTAB), hexadecyltrimethylphenylammonium chloride (CPC), silver nitrate, zinc nitrate, silver phosphate, zinc phosphate, (Shanghai Sinopharm Chemical Reagent Co., Ltd.), nano zinc oxide, chitosan (Shanghai McLean Biochemical Technology Co., Ltd.), collagen (Shanghai Yuanye Biotechnology Co., Ltd.)

[0039] Penetrant (fatty alcohol polyoxyethylene ether JFC, peregrin O), acetic acid (Jinan Zhenxing Chemical Reagent Co., Ltd.), cross-linking agent (citric acid, tartaric acid, lactic acid) (Wuxi Aoruid Chemical Products Co., Ltd.), basil extract, clove essential oil extract (Jining Jiahe Biotechnology Co., Ltd.);

[0040] Example 1

[0041] This embodiment provides a method for finishing functional submicron cotton textiles to provide lasting comfort, adding a collagen finishing agent, and comprising the following steps:

[0042] (1) Preparation process of submicron cotton textiles: During the carding process, submicron fibers are loaded onto a cotton net using electrospinning technology, and then subsequent spinning, weaving and other processes are performed to obtain submicron cotton textiles. The electrospinning solution contains 8wt% polyacrylonitrile, the solvent is N,N-dimethylformamide, and no antibacterial agent is added to the spinning solution. The electrospinning process parameters are: the electrospinning applied voltage is 50KV, the receiving distance is 18cm, the spinning temperature is 28°C, and the relative humidity is 50%.

[0043] (2) Submicron cotton textiles pass through the following sequence: unwinding unit → pre-drying unit → air cooling unit → liquid ammonia impregnation unit →

[0044] Carpet unit → steaming unit → [functional finishing unit] → washing unit → drying unit → cloth dropping unit. After packaging, inspection and storage, comfortable and finished functional submicron textiles are obtained. The process parameters of each unit are shown in Table 1.

[0045] The finishing agent used for functional finishing is collagen finishing agent, which is compounded by chitosan and collagen. The dosage of collagen finishing agent is 4-5g / L, wherein chitosan and collagen account for 55% and 45% of the collagen finishing agent respectively.

[0046] The finishing of textiles not only gives them good hand feel such as wrinkle resistance, but also moisturizing properties. It is precisely processed, pollution-free and waste-free, and does not affect the finished yarn.

[0047] The process parameters of each unit are:

[0048] Table 1 Process parameters of each unit

[0049]

[0050] The antibacterial effect of the tested fabrics after finishing is shown in the following table:

[0051] Table 2 Antibacterial test results (32-count plain fabric performance test results)

[0052]

[0053]

[0054] Example 2

[0055] The method for finishing functional submicron cotton textiles for long-lasting comfort in Example 2 is the same as that in Example 1, except that an antibacterial finishing agent is used in Example 2, and the amount of the antibacterial finishing agent is 5 g / L in test ①, 7.5 g / L in test ②, and 10 g / L% in test ③.

[0056] The dosage of plant components, organic quaternary ammonium salt compounds, and silver ion / zinc ion composite metal salts account for 45%, 10%, and 45% of the antibacterial finishing agent, respectively. The dosage of basil extract and clove essential oil in the plant components accounts for 35% and 65% of the plant components, respectively. The dosage of the silver ion metal salt and the zinc ion metal salt accounts for 40% and 60% of the composite metal salt, respectively; the silver ion metal salt is silver phosphate; the zinc ion metal salt is zinc phosphate. The organic quaternary ammonium salt compound is hexadecyltrimethylammonium bromide (CTAB).

[0057] The various properties of the fabrics obtained after the above three tests were tested, and the test results are shown in the following table.

[0058] Table 3 Performance test results

[0059]

[0060] From the test results in Table 3, it can be seen that the dosage of functional antimicrobial agents will affect the antimicrobial effect. When the dosage is low (5g / L), the antimicrobial effect just meets the requirements, and the high dosage (10g / L) improves the antimicrobial property, but the antimicrobial effect is redundant for normal use. Therefore, the dosage of fabric antimicrobial finishing agent per unit time is preferably 7.5g / L.

[0061] Example 3

[0062] The method for finishing the functional submicron cotton textiles for long-lasting comfort in Example 3 is the same as that in Example 1, except that an anti-ultraviolet finishing agent is used in Example 3, and the anti-ultraviolet finishing agent includes nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid; wherein the amount of the anti-ultraviolet finishing agent is 4.5 g / L. The amounts of nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid account for 20%, 28%, 21%, 3%, and 28% of the amount of the anti-ultraviolet finishing agent, respectively. The crosslinking agent is citric acid; and the penetrant is fatty alcohol polyoxyethylene ether JFC. The performance test results of ① ordinary textiles finished with an anti-ultraviolet finishing agent, ② submicron textiles not finished with an anti-ultraviolet finishing agent, and ③ submicron textiles finished with an anti-ultraviolet finishing agent are compared. Among them, ordinary textiles do not use electrostatic spinning submicron fiber loading treatment during the sliver combing process, and antibacterial agents are added to the spinning solution during the preparation of submicron textiles, and the amount of antibacterial agents is 0.3% of the mass of submicron cotton textiles. The amount of plant components, organic quaternary ammonium salt compounds, and silver ion / zinc ion composite metal salts in the antibacterial finishing agent accounts for 45%, 10%, and 45% of the antibacterial finishing agent, respectively. The amount of basil extract and clove essential oil in the plant components accounts for 35% and 65% of the plant components, respectively. The amount of the silver ion metal salt and the zinc ion metal salt accounts for 40% and 60% of the amount of the composite metal salt, respectively; the silver ion metal salt is silver phosphate; the zinc ion metal salt is zinc phosphate. The organic quaternary ammonium salt compound is hexadecyltrimethylammonium bromide (CTAB).

[0063] Table 4 Performance test results

[0064]

[0065] From the test results in Table 4, it can be seen that the submicron cotton textiles have the best antibacterial rate, anti-ultraviolet property and durability after anti-ultraviolet finishing by the functional finishing unit. Ordinary textiles are given certain anti-ultraviolet properties after anti-ultraviolet finishing by this functional finishing unit, but the durability is extremely poor; submicron textiles have certain antibacterial properties but poor anti-ultraviolet properties without being treated by the functional finishing unit. Therefore, the antibacterial rate and durability of submicron textiles have been greatly improved after functional anti-ultraviolet finishing, meeting the antibacterial requirements.

[0066] Example 4

[0067] The preparation method is the same as that of Example 1, except that the functional finishing unit is an anti-ultraviolet finishing, wherein the anti-ultraviolet finishing agent includes nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid; wherein the amount of the anti-ultraviolet finishing agent is 5 g / L. The amounts of nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid account for 20%, 28%, 21%, 3%, and 28% of the amount of the anti-ultraviolet finishing agent, respectively. The crosslinking agent is citric acid; and the penetrant is fatty alcohol polyoxyethylene ether JFC.

[0068] Example 5

[0069] The preparation method is the same as that in Example 1, the only difference is that in this embodiment, an anti-ultraviolet functional finishing is performed again after the collagen finishing in Example 1. That is, the submicron textile preparation method in this embodiment includes two functional finishing units. In the first collagen finishing unit, the collagen finishing agent is compounded by chitosan and collagen, and the amount of collagen finishing agent is 2g / L, wherein chitosan and collagen account for 55% and 45% of the collagen finishing agent respectively. In the second anti-ultraviolet finishing unit, the anti-ultraviolet finishing agent includes nano zinc oxide, chitosan, a cross-linking agent, a penetrant, and acetic acid; wherein the amount of the anti-ultraviolet finishing agent is 2g / L. The amounts of nano zinc oxide, chitosan, a cross-linking agent, a penetrant, and acetic acid account for 20%, 28%, 21%, 3% and 28% of the amount of the anti-ultraviolet finishing agent, respectively. The cross-linking agent is citric acid; and the penetrant is fatty alcohol polyoxyethylene ether JFC. Table 5 shows the test results of various properties of submicron cotton textiles obtained in Examples 1, 4, and 5, wherein the amount of collagen finishing agent used in the collagen finishing of Example 1 is 5 g / L. The amount of anti-ultraviolet finishing agent used in the anti-ultraviolet finishing of Example 4 is 5 g / L.

[0070] Table 5 Performance test results of 32-count plain fabrics prepared in Examples 1-3

[0071]

[0072] From the test results in Table 5, it can be seen that the submicron cotton textiles have the best antibacterial rate, anti-ultraviolet resistance and durability after being finished with collagen and anti-ultraviolet synergistic functional finishing units. Single collagen finishing gives it good antibacterial properties but slightly poor anti-ultraviolet resistance; single anti-ultraviolet finishing has good anti-ultraviolet durability but slightly weaker antibacterial rate and durability. Therefore, the antibacterial rate, anti-ultraviolet resistance and durability of submicron textiles have been greatly improved after dual-functional synergistic finishing.

[0073] Example 6

[0074] Example 6 is a comparative example of functional finishing of fabrics with different thicknesses, densities, as shown in Table 6 and Table 7:

[0075] Table 6 Process parameters of each unit

[0076]

[0077]

[0078] Table 7 Running speed and pressure under different fabric thickness and tightness

[0079]

[0080] From the results in Tables 6 and 7, it can be seen that in order to better achieve green and environmentally friendly quantitative and refined control, submicron cotton textiles automatically run at different speeds and pressures during the finishing process of the functional finishing unit according to the different thickness, density and organizational structure of the fabric, so that the use of raw materials in the finishing process is more economical and refined.

[0081] Example 7

[0082] Table 8 Antibacterial finishing effect of submicron acrylic fibers with different contents

[0083]

[0084] The dosage of plant components, organic quaternary ammonium salt compounds, and silver ion / zinc ion composite metal salts in the antibacterial agent account for 45%, 10%, and 45% of the antibacterial finishing agent, respectively. The dosage of basil extract and clove essential oil in the plant components is 35% and 65% of the plant components, respectively. The dosage of the silver ion metal salt and the zinc ion metal salt account for 40% and 60% of the dosage of the composite metal salt, respectively; the silver ion metal salt is silver phosphate; the zinc ion metal salt is zinc phosphate. The organic quaternary ammonium salt compound is hexadecyltrimethylammonium bromide (CTAB). The antibacterial rate ≥ 60% is a qualified antibacterial product. It can be seen from the results in Table 8 that when the mass ratio of the antibacterial agent to the submicron textile is 1%, 1.5%, and 2%, respectively, the antibacterial rate exceeds 96%, and the antibacterial effect is excellent. In order to reduce the preparation cost of functional textiles, the mass ratio of the antibacterial agent to the submicron textile can be controlled to 0.1%-1%.

Claims

1. A method for preparing a functional submicron cotton textile, comprising: Submicron cotton textiles are pre-treated, then finished with functional additives, washed, dried, and dropped; The functional additive is one or more of an antibacterial finishing agent, an anti-ultraviolet finishing agent, and a collagen finishing agent; the antibacterial finishing agent components include: plant components, silver ion / zinc ion composite metal salts, and organic quaternary ammonium salt compounds; the plant components include basil extract and clove essential oil; The submicron acrylic fiber mass percentage content in the submicron cotton textile is 0.5% to 5%, the fiber diameter is 100 to 500 nm, and the cotton mass percentage content is 95% to 99.5%; the preparation of the submicron cotton textile comprises: using electrostatic spinning technology to load the submicron fiber onto a cotton net during the carding process, and then spinning and weaving to obtain the submicron cotton textile; wherein the spinning solution used in the electrostatic spinning comprises a polyacrylonitrile solution; the spinning solution also contains an antibacterial agent, and the amount of the antibacterial agent used is 0.1% to 1% of the mass of the submicron cotton textile; The pretreatment includes unwinding, pre-drying, air cooling, liquid ammonia impregnation, felting, and steaming; wherein the unwinding padding pressure is 0.5-5 bar, the pre-drying is 60-100° C., the air volume of air cooling is 50-100%, the liquid ammonia impregnation time is 0.1-1 s, the felt padding pressure is 0.5-5 bar, and the steaming is 100-150° C.; The functional additive finishing is padding finishing, the dipping roller pressure is 1.5-2.5N, the roller pressure speed parameter running speed is 45-65 m / min; the washing temperature is 35-55°C; the drying temperature is 60-100°C.

2. The preparation method according to claim 1, characterized in that: The dosage of the antibacterial finishing agent is 2.5-10g / L; the dosage of the plant component, the organic quaternary ammonium salt compound, and the silver ion / zinc ion composite metal salt respectively accounts for 45%-55%, 5%-15%, and 30%-45% of the antibacterial finishing agent; the plant component comprises basil extract and clove essential oil, and the dosage of basil extract and clove essential oil is 30-50% and 50-70% of the plant component respectively; the dosage of the silver ion metal salt and the zinc ion metal salt respectively accounts for 33-50% and 50-67% of the dosage of the composite metal salt; the silver ion metal salt is at least one of silver phosphate and silver nitrate; the zinc ion metal salt is at least one of zinc phosphate and zinc nitrate; the organic quaternary ammonium salt compound is any one of cetyltrimethylammonium bromide (CTAB) and cetyltrimethylphenylammonium chloride (CPC).

3. The preparation method according to claim 1, characterized in that: The anti-ultraviolet finishing agent comprises nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid; wherein the amount of the anti-ultraviolet finishing agent is 2-5 g / L; wherein the amount of nano zinc oxide, chitosan, a crosslinking agent, a penetrant, and acetic acid accounts for 17-40%, 14-32%, 6-23%, 2-5%, and 23-40% of the amount of the anti-ultraviolet finishing agent, respectively; wherein the crosslinking agent is an organic polycarboxylic acid, i.e., any one of citric acid, tartaric acid, and lactic acid; and the penetrant is any one of fatty alcohol polyoxyethylene ether JFC and peregal O; The collagen finishing agent is compounded by chitosan and collagen, and the dosage of the collagen finishing agent is 2-5 g / L; wherein the dosage of chitosan and collagen accounts for 40-60% and 40-60% of the collagen finishing agent respectively.

4. A device used in the preparation method according to claim 1, characterized in that: The device comprises an unwinding unit, a pre-drying unit, an air cooling unit, a liquid ammonia impregnation unit, a felt unit, a steaming unit, a functional finishing unit, a washing unit, a drying unit and a cloth dropping unit in sequence; wherein the functional finishing unit is provided with three leather rollers and an impregnation tank.

5. A functional submicron cotton textile prepared by the method of claim 1.

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