阅读说明：本技术 一种银离子复合光触媒的纺织物及其制备方法 (Silver ion composite photocatalyst textile and preparation method thereof ) 是由 杨晟尧 孔洋波 林路云 张捷 于 2019-09-26 设计创作，主要内容包括：本发明提供一种银离子复合光触媒的纺织物及其制备方法,制备复合光触媒溶液；原料处理,用喷洒设备将复合光触媒溶液喷洒到纺织物原料纤维或丝线上,进行烘干；纺织物加工成型,将处理过的原料进行纺织加工,制成纺织物；再次浸泡,将纺织物通过输送装置输送至浸轧槽中浸泡；轧压,对浸泡过的纺织物进行轧压；再次烘干,纺织物浸泡后轧压,连续三次后进行烘干；风干,烘干后自然风干30-60min；制成,卷布装置将风干后的纺织物进行收卷；银离子复合光触媒纺织物可以连续多次洗涤后,仍保持其光催化活性基本不变,耐洗性能十分优异；结合了银离子和光触媒的抗菌优点,克服了单一使用时抗菌性不足的弊端,双重抗菌,进一步提升纺织物的抗菌能力。(The invention provides a silver ion composite photocatalyst textile and a preparation method thereof, and a composite photocatalyst solution is prepared; treating raw materials, namely spraying the composite photocatalyst solution onto textile raw fibers or silk threads by using spraying equipment, and drying; processing and forming the textile, namely carrying out textile processing on the processed raw material to prepare the textile; soaking again, namely conveying the textile fabrics into a soaking and rolling tank through a conveying device for soaking; rolling, namely rolling the soaked textile; drying again, rolling and pressing the soaked textile fabrics, and drying after three times of continuous drying; air drying, and naturally air drying for 30-60 min; the preparation method comprises the following steps that (1) a cloth rolling device rolls the air-dried textile fabric; the silver ion composite photocatalyst textile can be continuously washed for many times, and still keeps the photocatalytic activity of the textile basically unchanged, and has excellent washing resistance; the antibacterial advantage of silver ion and photocatalyst has been combined, and the drawback that the bacterinertness is not enough when having overcome single use, dual antibiotic further promotes the antibacterial property of fabric.)

1. The textile fabric of the silver ion composite photocatalyst is characterized in that the textile fabric is treated by the composite photocatalyst solution in the processing process, and has double sterilization effects of the silver ion and the titanium dioxide photocatalyst.

2. The textile fabric of silver ion composite photocatalyst, according to claim 1, is characterized in that the composite photocatalyst solution comprises the following raw materials in parts by weight: 15-30 parts of anatase titanium dioxide powder, 20-30 parts of nano silver oxide powder, 20-2 parts of penetrant JFC1 and 40-60 parts of deionized water.

3. The textile fabric of silver ion composite photocatalyst according to claim 2, wherein the molar concentration of silver ions in the composite photocatalyst solution is 0.2-0.5 mol/L.

4. The method for preparing the textile fabric with the silver ion composite photocatalyst as claimed in any one of claims 1 to 3, which is characterized by comprising the following steps:

s1, preparing a composite photocatalyst solution, and preparing the composite photocatalyst solution with a proper concentration according to textile raw materials;

s2, treating the raw materials, namely spraying the composite photocatalyst solution onto the textile raw material fibers or silk threads by using spraying equipment, uniformly spraying, standing for 15-30min in a non-sunshine environment, spraying again, and immediately drying by using a drying device after spraying for three times;

s3, processing and forming a textile fabric, namely performing textile processing on the processed raw material to prepare the textile fabric;

s4, soaking again, pouring a composite photocatalyst solution into the padding tank, and conveying the textile fabrics into the padding tank through a conveying device for soaking;

s5, rolling, namely rolling the soaked textile fabric to ensure that the composite photocatalyst solution is fully soaked in the textile fabric;

s6, drying again, rolling after soaking the textile fabric, and drying after three times of continuous rolling;

s7, air-drying, and naturally air-drying for 30-60min after drying;

and S8, winding the air-dried textile fabric by using a cloth winding device to obtain the highly antibacterial silver ion composite photocatalyst textile fabric.

5. The method of claim 4, wherein the composite photocatalyst solution used in S4 has a higher silver ion concentration than the composite photocatalyst solution used in S2.

6. The method for preparing the silver ion composite photocatalyst textile as claimed in claim 4, wherein in S4, the weight ratio of anatase titanium dioxide powder to the textile is (1-2): 100.

7. The method for preparing the silver ion composite photocatalyst textile fabric according to claim 4, wherein the drying temperature in S2 and S6 is 80-90 ℃.

8. The method for preparing the textile fabric of the silver ion composite photocatalyst as claimed in claim 4, wherein in S4, the running speed of the textile fabric is 10-20m/min, the running distance is not less than 50m, and the temperature of the nano composite photocatalyst solution is kept at 30-45 ℃.

9. The method for preparing the silver ion composite photocatalyst textile fabric as claimed in claim 4, wherein in S5, the rolling speed of the rolling device is 10-20m/min, and the rolling distance is not less than 20 m.

Technical Field

The invention relates to a textile fabric, in particular to a textile fabric of a silver ion composite photocatalyst and a preparation method thereof.

Background

Along with the development of clothes, people have higher and higher requirements on the antibacterial property of the clothes, the traditional method is to add an antibacterial agent into the clothes, most of the antibacterial agents used in the clothes are organic antibacterial agents such as quaternary ammonium salts, guanidines, fatty acids, metal compounds and the like, most of the antibacterial agents are toxic and not environment-friendly, some antibacterial agents are high in cost, the processing technology is complex, some antibacterial effects are poor, and the durability and the washability are poor, so that the photocatalyst antibacterial textile fabric is provided.

The existing textile products are usually doped with anatase titanium dioxide photocatalyst to achieve the effects of resisting bacteria, deodorizing and decomposing indoor harmful gases such as formaldehyde, aromatic hydrocarbon, carbon monoxide, nitrogen oxide and the like. However, the energy gap for electron transition from valence band to conduction band of conventional nano titanium dioxide is 3.2eV, and if the electron transition is caused by absorbing the energy of light wave, ultraviolet light with a wavelength of less than 387.5nm is required for irradiation. The photocatalyst can only react under illumination, the pure photocatalyst can only absorb ultraviolet light, and the photocatalyst capable of absorbing visible light and even far infrared light necessarily chelates other active catalytic materials. This results in limited antibacterial activity of titanium dioxide photocatalyst textile and failure to meet higher demands of consumers.

And a metal ion antibacterial cloth, such as a silver ion antibacterial cloth, but the nano silver mainly kills unicellular organisms and is combined with oxygen metabolic enzyme to inactivate the enzyme so as to suffocate pathogenic bacteria. The multicellular body does not use protease for respiration, and therefore, the nano-silver sterilization also has certain limitation.

Both titanium dioxide photocatalyst textile fabrics and silver ion antibacterial textile fabrics have use limitation, and the higher requirements of consumers on the antibacterial property cannot be met by single use.

Disclosure of Invention

The invention aims to provide a silver ion composite photocatalyst textile and a preparation method thereof.

In order to achieve the above object, the present invention adopts the following technical solutions

The textile fabric is treated by the composite photocatalyst solution in the processing process, and has double sterilization effects of silver ions and titanium dioxide photocatalyst.

Preferably, the composite photocatalyst solution comprises the following raw materials in parts by weight: 15-30 parts of anatase titanium dioxide powder, 20-30 parts of nano silver oxide powder, 20-2 parts of penetrant JFC1 and 40-60 parts of deionized water.

Preferably, the molar concentration of the silver ions in the composite photocatalyst solution is 0.2-0.5 mol/L.

The anatase titanium dioxide has the diameter of less than 100 nanometers, and the product is white loose powder. Has the performances of thread resistance, antibiosis, self-cleaning and ageing resistance. The product can kill malignant HeLa cells with anatase type TiO2 concentration of 0.1mg/cm3, and with the increase of the addition of superoxide dismutase (SOD), the efficiency of TiO2 in killing cancer cells by photocatalysis is improved. The killing rate of bacillus subtilis black variant spores, pseudomonas aeruginosa, escherichia coli, staphylococcus aureus, salmonella, dental mycobacteria and aspergillus can reach more than 98 percent; titanium dioxide has strong adsorption and high catalytic oxidation activity on a plurality of organic pollutants, so that the titanium dioxide plays an extremely important role in the aspect of environmental pollution treatment and is widely used for photocatalytic treatment of a plurality of organic matters.

Nano silver ion: natural antibacterial agents, which are the latest generation of natural antibacterial agents, have the following characteristics: broad-spectrum antibacterial sterilization and no drug resistance; the sterilization is strong, and a plurality of germs harmful to human bodies can be killed within a few minutes; the permeability is strong, the skin can be quickly infiltrated into the skin from pores for sterilization, and the skin has good sterilization effect on the infection caused by common bacteria, stubborn bacteria, drug-resistant bacteria and fungi; and (3) healing promotion: improving the micro-tissue around the wound, effectively activating and promoting the growth of tissue cells, accelerating the healing of the wound and reducing the generation of scars; the nano silver particles are produced by a patent technology, and a layer of protective film is arranged outside the nano silver particles and can be gradually released in a human body, so that the antibacterial effect is durable.

A preparation method of a textile fabric of a silver ion composite photocatalyst comprises the following steps:

s1, preparing a composite photocatalyst solution, and preparing the composite photocatalyst solution with a proper concentration according to textile raw materials;

s2, treating the raw materials, namely spraying the composite photocatalyst solution onto the textile raw material fibers or silk threads by using spraying equipment, uniformly spraying, standing for 15-30min in a non-sunshine environment, spraying again, and immediately drying by using a drying device after spraying for three times;

s3, processing and forming a textile fabric, namely performing textile processing on the processed raw material to prepare the textile fabric;

s4, soaking again, pouring a composite photocatalyst solution into the padding tank, and conveying the textile fabrics into the padding tank through a conveying device for soaking;

s5, rolling, namely rolling the soaked textile fabric to ensure that the composite photocatalyst solution is fully soaked in the textile fabric;

s6, drying again, rolling after soaking the textile fabric, and drying after three times of continuous rolling;

s7, air-drying, and naturally air-drying for 30-60min after drying;

and S8, winding the air-dried textile fabric by using a cloth winding device to obtain the highly antibacterial silver ion composite photocatalyst textile fabric.

Preferably, the composite photocatalyst solution used in S4 has a higher silver ion concentration than the composite photocatalyst solution used in S2.

Preferably, in S4, the weight ratio of the anatase titanium dioxide powder to the textile fabric is (1-2): 100.

Preferably, the drying temperature in S2 and S6 is 80-90 ℃.

Preferably, in S4, the running speed of the textile is 10-20m/min, the running distance is not less than 50m, and the temperature of the nano composite photocatalyst solution is kept at 30-45 ℃.

Preferably, in S5, the rolling speed of the rolling device is 10-20m/min, and the rolling distance is not less than 20 m.

The invention has the beneficial effects that:

1. the composite photocatalyst prepared by doping silver ions and titanium dioxide photocatalyst materials into the textile enables the shielding rate of the textile to ultraviolet rays with the wavelength of 297nm to reach 93%, and the bacteriostasis rate of the textile (aiming at escherichia coli, staphylococcus aureus, penicillium spores, trichophyton rubrum and the like) under the normal temperature condition of a human body to reach 93.6% -98.3%.

2. The silver ion composite photocatalyst textile can be continuously washed for many times, and still keeps the photocatalytic activity of the textile basically unchanged, and has excellent washing resistance.

3. The antibacterial advantage of silver ion and photocatalyst has been combined, and the drawback that the bacterinertness is not enough when having overcome single use, dual antibiotic further promotes the antibacterial property of fabric.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.