CN110670342A - Silver ion composite photocatalyst textile and preparation method thereof - Google Patents
Silver ion composite photocatalyst textile and preparation method thereof Download PDFInfo
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- CN110670342A CN110670342A CN201910916135.5A CN201910916135A CN110670342A CN 110670342 A CN110670342 A CN 110670342A CN 201910916135 A CN201910916135 A CN 201910916135A CN 110670342 A CN110670342 A CN 110670342A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic System; Titanates; Zirconates; Stannates; Plumbates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/18—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics combined with squeezing, e.g. in padding machines
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
- D06M11/42—Oxides or hydroxides of copper, silver or gold
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Catalysts (AREA)
Abstract
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.
Description
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.
Example 1
A textile fabric of silver ion composite photocatalyst is treated by composite photocatalyst solution in the processing process, and has double sterilization effects of silver ion and titanium dioxide photocatalyst; the composite photocatalyst solution comprises the following raw materials in parts by weight: 22 parts of anatase titanium dioxide powder, 25 parts of nano silver oxide powder, 1.5 parts of penetrant JFC and 40 parts of deionized water; the molar concentration of silver ions was 0.4 mol/L.
Example 2
A textile fabric of silver ion composite photocatalyst is treated by composite photocatalyst solution in the processing process, and has double sterilization effects of silver ion and titanium dioxide photocatalyst; the composite photocatalyst solution comprises the following raw materials in parts by weight: 15 parts of anatase titanium dioxide powder, 20 parts of nano silver oxide powder, 50 parts of penetrant JFC1 and 50 parts of deionized water; the molar concentration of silver ions was 0.3 mol/L.
Example 3
A textile fabric of silver ion composite photocatalyst is treated by composite photocatalyst solution in the processing process, and has double sterilization effects of silver ion and titanium dioxide photocatalyst; the composite photocatalyst solution comprises the following raw materials in parts by weight: 30 parts of anatase titanium dioxide powder, 30 parts of nano silver oxide powder, 60 parts of penetrant JFC2 and 60 parts of deionized water; the molar concentration of silver ions was 0.5 mol/L.
The preparation method of the silver ion composite photocatalyst textile fabric in the embodiment 1 to 3 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 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, wherein the drying temperature is 80-90 ℃;
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; the weight ratio of the anatase titanium dioxide powder to the textile fabric is (1-2): 100, the running speed of the textile fabric is 10-20m/min, the running distance is not less than 50m, the temperature of the composite photocatalyst solution is kept at 30-45 ℃, and the silver ion concentration of the composite photocatalyst solution is higher than that of the composite photocatalyst solution used in S2;
s5, rolling, namely rolling the soaked textile fabric to ensure that the composite photocatalyst solution is fully soaked in the textile fabric, wherein the rolling speed of a rolling device is 10-20 m/min;
s6, drying again, soaking the textile fabric, rolling, and drying after three times of continuous drying at the drying temperature of 80-90 ℃;
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.
Example 4
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 textile raw material fibers or silk threads by using spraying equipment, uniformly spraying, standing for 22min in a non-sunlight environment, spraying again, and immediately drying by using a drying device after spraying for three times, wherein the drying temperature is 86 ℃;
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; the weight ratio of the anatase titanium dioxide powder to the textile is 2:100, the traveling speed of the textile is 15m/min, the traveling distance is 50m, the temperature of the nano composite photocatalyst solution is kept at 38 ℃, and the silver ion concentration of the composite photocatalyst solution is higher than that of the composite photocatalyst solution used in S2;
s5, rolling, namely rolling the soaked textile to ensure that the composite photocatalyst solution is fully soaked in the textile, wherein the rolling speed of a rolling device is 15m/min, and the rolling distance is 25 m;
s6, drying again, soaking the textile fabric, rolling, and drying after three times of continuous drying at the drying temperature of 85 ℃;
s7, air-drying, and naturally air-drying for 45min 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.
Example 5 verification of the Sterilization Effect
The textiles of the silver ion composite photocatalyst prepared in examples 1 to 3 were tested, and the commercially available photocatalyst textiles and silver ion bactericidal textiles were selected as comparative examples, and the test method was: cutting five textiles with the size of 0.4m by 0.8m, respectively spraying culture solutions of escherichia coli, staphylococcus aureus, penicillium spores, fungi, chlamydia and mycoplasma with certain concentrations on the textiles, and detecting the sterilization rate after 2 hours, wherein the results are shown in the following table 1; the test examples 1 to 3 were washed 10 times and then subjected to the antibacterial test again, and the results are shown in the following table 2:
TABLE 1
TABLE 2
Tests show that the textile of the silver ion composite photocatalyst prepared by the invention has stronger sterilization capability than single type photocatalyst textiles and silver ion sterilization textiles, and the sterilization effect is not obviously reduced after multiple times of washing.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that the above-mentioned preferred embodiments of the present invention are provided merely to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
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.
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| CN111877025A (en) * | 2020-07-29 | 2020-11-03 | 雅弗生物实验室有限公司(加拿大) | Silver ion and infrared combined film material base cloth and preparation process thereof |
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Application publication date: 20200110 |