CN113652861B - Fabric with antibacterial and antistatic functions - Google Patents
Fabric with antibacterial and antistatic functions Download PDFInfo
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- CN113652861B CN113652861B CN202111009238.7A CN202111009238A CN113652861B CN 113652861 B CN113652861 B CN 113652861B CN 202111009238 A CN202111009238 A CN 202111009238A CN 113652861 B CN113652861 B CN 113652861B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- 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
- D06M11/83—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 metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- 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
- D06M11/77—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 silicon or compounds thereof
- D06M11/79—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 silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
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- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention discloses a fabric with antibacterial and antistatic functions, which is prepared by the following method: soaking the fabric in the pretreatment liquid, then padding and drying to obtain a pre-finished fabric; immersing the pre-finished fabric into a functional finishing liquid, taking out, rolling the liquid, and drying to obtain the fabric with antibacterial and antistatic functions; the functional finishing liquid is prepared from the following raw materials: antibacterial agent, coupling agent, sodium orthosilicate, composite flame retardant and water. The fabric disclosed by the invention has good antibacterial property, antistatic property and flame retardant property, and is washable.
Description
Technical Field
The invention belongs to the technical field of fabrics, and particularly relates to a fabric with antibacterial and antistatic functions.
Background
The fabric has a loose and porous structure, so that the fabric is easy to adsorb moisture, tiny dust, microorganisms and the like in the environment, and becomes a place for breeding and breeding a large amount of microorganisms, thereby causing the loss of color, strength and structure of the fabric and affecting the performance of the fabric. The common antibacterial treatment of the fabric comprises after-finishing of the fabric, direct fiberization, a fiber composite layer and the like. The fabric after-finishing is performed on the fabric by padding, dipping and other methods, so that the operation is simple and the applicability is wide. Chinese patent CN103882601a discloses a preparation method of antibacterial and antistatic yarn-dyed fabric, comprising the following steps: selecting raw materials; dyeing chitin fiber, white cotton fiber and chemical fiber short fiber with color master batch; preparing blended yarns; mercerizing; warping and weaving; weaving a fabric; immersing the fabric into a quaternary ammonium salt solution for antibacterial finishing; and (5) after-finishing. The fabric has good antibacterial effect, moisture retention and dryness prevention functions and is not easy to generate static electricity, but the fabric has poor washing resistance and long-lasting antibacterial and antistatic effects.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a fabric with antibacterial and antistatic functions.
In order to solve the technical problems, the invention adopts the following technical scheme:
the fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g: (25-35) mL is immersed in pretreatment liquid at 40-60 ℃ for 40-60min, then is padded at 90-105 ℃ under 5-8MPa for 3-8min, is dried at 45-60 ℃ for 8-15min, and then is subjected to a bath ratio of 1g: immersing (25-35) mL into 65-80 ℃ water, preserving heat for 25-40min, taking out, rolling liquid, wherein the rolling surplus rate is 60-70%, and drying for 6-10h at 75-90 ℃ to obtain the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g: (8-15) mL, the soaking temperature is 40-60 ℃, the soaking time is 60-90min, the fabric is taken out, the rolling liquid and the rolling surplus rate are 60-70%, and the fabric with the antibacterial and antistatic functions is obtained after drying for 4-8h at 100-130 ℃.
The pretreatment liquid is a pretreatment agent aqueous solution with pH=7.5-9 and concentration of 3-6 g/L.
The pre-finishing agent is any one of stearyl phosphate betaine, 3-chloro-2-hydroxypropyl trimethyl ammonium chloride and lignin sulfonate; preferably, the pre-finishing agent is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride.
The fabric is reacted with alkali in the pretreatment liquid to form an intermediate product, namely alkali cellulose, and then strong interaction is formed between the intermediate product and a cationic agent during cationization treatment, which is probably due to the fact that after abundant hydroxyl groups in the crystal structure of the cotton fiber are grafted and substituted by the cationic agent, the fabric has the capacity of reducing the hydrogen band density to partially destroy the crystal cotton fiber structure, so that the reactivity of the fabric is improved, and a foundation is laid for providing effective and durable antibacterial finishing for the fabric.
The functional finishing liquid is prepared from the following raw materials: 10-20wt% of antibacterial agent, 2-5wt% of coupling agent, 1-4wt% of sodium orthosilicate and the balance of water.
Preferably, the functional finishing liquid is prepared from the following raw materials: 10-20wt% of antibacterial agent, 2-5wt% of coupling agent, 1-4wt% of sodium orthosilicate, 5-8wt% of composite flame retardant and the balance of water.
The preparation method of the composite flame retardant comprises the following steps:
adding 10-20 parts by weight of silicon dioxide and 2-3 parts by weight of silicon carbide into 50-80 parts by weight of 20-50wt% isopropanol water solution, performing ultrasonic dispersion for 5-10min, adding 1-2 parts by weight of tris (trimethylsiloxy) ethoxysilane, 0.5-1 part by weight of sodium lignin sulfonate and 0.5-1 part by weight of hydroxymethyl cellulose, stirring at 80-90 ℃ for 3-6h at a rotating speed of 100-200rpm, centrifuging and drying to obtain modified silicon dioxide; mixing 6-8 parts by weight of hexamethylenediamine tetramethylene phosphonic acid, 20-30 parts by weight of (aminomethylene) diphosphonic acid, 10-20 parts by weight of urea and 5-10 parts by weight of water, and stirring at a speed of 50-100rpm for 1-2 hours at 105-120 ℃; and adding 5-15 parts by weight of the modified silicon dioxide, continuously stirring for 0.5-1h, heating to 180-195 ℃ for reacting for 2-5h, and drying to obtain the composite flame retardant.
The coupling agent is one of 3-glycidol ether oxygen propyl trimethoxy silane, gamma-piperazinyl propyl methyl dimethoxy silane and N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane.
The antibacterial agent is one of silver nano particles and silver nano particle composites.
The preparation method of the silver nano-particles comprises the following steps: adding 4-8 parts by weight of silver nitrate and 3-6 parts by weight of reducing agent into 95-110 parts by weight of water, stirring at room temperature for 15-30min at a rotation speed of 800-1200rpm, centrifuging, washing and drying to obtain silver nano particles. The reducing agent is one or more of radix et caulis Opuntiae Dillenii extract, rhizoma Zingiberis recens extract, aloe extract, and grape seed extract.
Silver nano particles have ultrahigh specific surface area and stable surface physical and chemical properties, and can effectively inhibit bacterial growth in a multi-target action mode by combining and destroying cell walls, cell inner membranes and nuclear membranes, poisoning respiratory enzymes and denaturing bacterial genetic materials. The synthesis method of silver nanoparticles in the prior art is simple and general, but shows adverse effects on organisms due to the use of toxic chemicals in the synthesis process. Silver nano particles have broad-spectrum antibacterial property, have good control effect on the growth of most pathogenic bacterial strains, but have no inhibition effect on fungi, and human skin covers the whole body, so that most of injuries can be generated when the silver nano particles are contacted with the environment, and the silver nano particles are extremely easy to suffer from fungal infection.
Ketoconazole is a water-insoluble antifungal drug with imidazole structure, commonly used to treat superficial fungal infections. Beta-cyclodextrin has a hydrophobic cavity and a hydrophilic surface, which allows controlled release of the compound, commonly used for drug release, and is mainly achieved by encapsulation of water insoluble or partially water soluble materials. Thus, ketoconazole is encapsulated in the hydrophobic cavity of the beta-cyclodextrin to increase the solubility of ketoconazole, thereby improving antifungal properties.
Therefore, in order to produce the fabric with the characteristics of antifungal and antibacterial properties, low cytotoxicity, low drug release rate, good washing fastness and the like, the invention captures the antifungal drug into the hydrophobic cavity of the beta-cyclodextrin to obtain the modified beta-cyclodextrin.
Preferably, the antimicrobial agent is a silver nanoparticle complex; the preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 48-55 parts by weight of ketoconazole and 100-115 parts by weight of beta-cyclodextrin into 95-110 parts by weight of water, stirring at room temperature for 60-80 hours at a rotating speed of 1000-1500rpm, filtering, and collecting filtrate to obtain a modified beta-cyclodextrin solution;
s2, adding 4-8 parts by weight of silver nitrate and 3-6 parts by weight of reducing agent into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at the room temperature at the speed of 800-1200rpm for 15-30min, then adding 0.05-0.2mol/L sodium hydroxide aqueous solution to adjust the pH value to 9-11, stirring at the speed of 800-1200rpm at the temperature of 85-100 ℃ for 2-5h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite.
The reducing agent is one or more of radix et caulis Opuntiae Dillenii extract, rhizoma Zingiberis recens extract, aloe extract, and grape seed extract.
Preferably, the reducing agent is a mixture of cactus extract and aloe extract, wherein the mass ratio of the cactus extract to the aloe extract is (1-3): (2-5).
The plant extract is used as a reducing agent, and is rich in bioactive compounds such as flavonoids, terpenoids, tannins, phenols and alcohols, phenolic hydroxyl groups in the biological compounds have weak reducibility, and silver ions can be reduced to zero-valent silver, so that silver nano particles are formed, and meanwhile, the generated silver nano particles have higher dispersion stability due to the existence of electrochemical potential difference between the silver ions and biological compound components.
In the step S2, partial silver ions are reduced into silver nano particles by using plant extracts, and then the pH value of the solution is adjusted to be alkaline, on one hand, the unreacted plant extracts in the solution are subjected to ionization oxidation state improvement, and the unreacted plant extracts can be effectively wrapped around the silver nano particles, so that the dispersion stability of the silver nano particles is further improved; on the other hand, in alkaline environment, beta-cyclodextrin can be used as a reducing agent, and beta-cyclodextrin-O-Na is used as the reducing agent + In the presence of silver, the electronegativity of silver is higher than that of sodium in aqueous solution, so that the excessive Ag in solution + Will replace Na + The beta-cyclodextrin-O-Ag is generated, and meanwhile, the cavity of the beta-cyclodextrin is blocked by the generation of silver nano particles, so that the release path of ketoconazole is reduced, the release time of ketoconazole is further prolonged, and the antifungal and antibacterial properties are improved.
The invention has the beneficial effects that: the fabric prepared by the invention has good antibacterial property, antistatic property and flame retardant property, and is washable. According to the antibacterial agent disclosed by the invention, the silver nanoparticle compound is adopted, and the medicine for treating fungal infection, namely ketoconazole, is wrapped in the beta-cyclodextrin cavity and is compounded with silver nanoparticles, so that the solubility of ketoconazole is improved, and meanwhile, the generated silver nanoparticles block the release of ketoconazole, so that the action time of ketoconazole is prolonged, and the antifungal and antibacterial performances of the antibacterial agent are improved.
Detailed Description
The above summary of the present invention is described in further detail below in conjunction with the detailed description, but it should not be understood that the scope of the above-described subject matter of the present invention is limited to the following examples.
Introduction of some of the raw materials in this application:
the fabric in the embodiment is 100% cotton fabric, and the gram weight is as follows: 220g/m 2 Cargo number: CJ170-60603, available from Shanghai Changjie textile Co.
3-chloro-2-hydroxypropyl trimethylammonium chloride, CAS number: 3327-22-8, content: 99% of the plant was purchased from Mijiujiu Feng Longhua Co.
N-cyclohexyl- γ -aminopropyl methyldimethoxysilane, CAS number: 120218-28-2, content: 99%, density: 0.92g/cm 3 Purchased from wuronobio biotechnology limited.
Sodium orthosilicate, CAS number: 13472-30-5, content: 99%, purchased from Jinan Chuang chemical Co., ltd.
Ketoconazole, CAS number: 65277-42-1 available from Wohano Biotechnology Co.
Cactus extract, which is derived from root and stem of Cactus belonging to Cactaceae, and comprises the following components: 60%, available from Waters biotechnology Co., ltd.
Aloe extract derived from leaf of Aloe of Liliaceae of Liliales, the content: 99%, available from western An Purui s bioengineering limited.
Beta-cyclodextrin, CAS number: 7585-39-9, cat No.: s11010, available from Shanghai Seiyaka Biotechnology Co., ltd.
Example 1
The fabric with the antibacterial and antistatic functions is prepared by the following method: immersing the fabric into the functional finishing liquid, wherein the bath ratio of the fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is silver nano particles.
The preparation method of the silver nano-particles comprises the following steps: 5 parts by weight of silver nitrate and 7.5 parts by weight of sodium citrate are added into 100 parts by weight of water, stirred at 1500rpm for 20min at 100 ℃, centrifuged, washed and dried to obtain silver nanoparticles.
Example 2
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is silver nano particles.
The preparation method of the silver nano-particles comprises the following steps: 5 parts by weight of silver nitrate and 7.5 parts by weight of sodium citrate are added into 100 parts by weight of water, stirred at 1500rpm for 20min at 100 ℃, centrifuged, washed and dried to obtain silver nanoparticles.
Example 3
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is silver nano particles.
The preparation method of the silver nano-particles comprises the following steps: adding 5 parts by weight of silver nitrate and 5 parts by weight of cactus extract into 100 parts by weight of water, stirring at 1000rpm for 20min at room temperature, centrifuging, washing and drying to obtain silver nanoparticles.
Example 4
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is a silver nanoparticle compound.
The preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 50 parts by weight of ketoconazole and 110 parts by weight of beta-cyclodextrin into 100 parts by weight of water, stirring at room temperature for 72 hours at a rotation speed of 1200rpm, filtering, and collecting filtrate, namely a modified beta-cyclodextrin solution;
s2, adding 5 parts by weight of silver nitrate and 5 parts by weight of cactus extract into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at a speed of 1000rpm for 20min at room temperature, then adding 0.1mol/L sodium hydroxide aqueous solution to adjust the pH value to 10, stirring at a speed of 1000rpm at 90 ℃ for reaction for 3h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite.
Example 5
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is a silver nanoparticle compound.
The preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 50 parts by weight of ketoconazole and 110 parts by weight of beta-cyclodextrin into 100 parts by weight of water, stirring at room temperature for 72 hours at a rotation speed of 1200rpm, filtering, and collecting filtrate, namely a modified beta-cyclodextrin solution;
s2, adding 5 parts by weight of silver nitrate and 5 parts by weight of aloe extract into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at a speed of 1000rpm at room temperature for 20min, then adding 0.1mol/L sodium hydroxide aqueous solution to adjust the pH value to 10, stirring at a speed of 1000rpm at 90 ℃ for reaction for 3h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite.
Example 6
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate and the balance of water.
The antibacterial agent is a silver nanoparticle compound.
The preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 50 parts by weight of ketoconazole and 110 parts by weight of beta-cyclodextrin into 100 parts by weight of water, stirring at room temperature for 72 hours at a rotation speed of 1200rpm, filtering, and collecting filtrate, namely a modified beta-cyclodextrin solution;
s2, adding 5 parts by weight of silver nitrate and 5 parts by weight of reducing agent into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at the room temperature for 20min at the rotating speed of 1000rpm, then adding 0.1mol/L sodium hydroxide aqueous solution to adjust the pH value to 10, stirring at the rotating speed of 1000rpm at the temperature of 90 ℃ for reaction for 3h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite.
The reducing agent is a mixture of cactus extract and aloe extract, wherein the mass ratio of the cactus extract to the aloe extract is 2:3.
example 7
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate, 6.5wt% of a composite flame retardant and the balance of water.
The preparation method of the composite flame retardant comprises the following steps:
mixing 7.5 parts by weight of hexamethylenediamine tetramethylene phosphonic acid, 25 parts by weight of (aminomethylene) diphosphonic acid, 15 parts by weight of urea and 5 parts by weight of water, and stirring at 110 ℃ for 1h at a rotation speed of 100 rpm; and adding 10 parts by weight of silicon dioxide, continuously stirring for 0.5h, heating to 185 ℃ for reaction for 3h, and drying to obtain the composite flame retardant.
The antibacterial agent is a silver nanoparticle compound; the preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 50 parts by weight of ketoconazole and 110 parts by weight of beta-cyclodextrin into 100 parts by weight of water, stirring at room temperature for 72 hours at a rotation speed of 1200rpm, filtering, and collecting filtrate, namely a modified beta-cyclodextrin solution;
s2, adding 5 parts by weight of silver nitrate and 5 parts by weight of reducing agent into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at the room temperature for 20min at the rotating speed of 1000rpm, then adding 0.1mol/L sodium hydroxide aqueous solution to adjust the pH value to 10, stirring at the rotating speed of 1000rpm at the temperature of 90 ℃ for reaction for 3h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite. The reducing agent is a mixture of cactus extract and aloe extract, wherein the mass ratio of the cactus extract to the aloe extract is 2:3. the flame retardant properties (conditions: ambient temperature 27 ℃, relative humidity 25%, sample size 200mm x 80mm, longitudinal direction of the sample perpendicular, and longitudinal direction toward the test flame) of the fabric with antibacterial and antistatic functions of example 7, the ignition time 17s of the fabric of example 7 were measured according to GB/T8746-2009.
Example 8
The fabric with the antibacterial and antistatic functions is prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g:30mL was immersed in a pretreatment liquid at 50℃for 50 minutes, then subjected to padding treatment at 100℃and a pressure of 6MPa for 5 minutes, then dried at 50℃for 10 minutes, and then subjected to a bath ratio of 1g: soaking 30mL into water with the temperature of 70 ℃ for heat preservation for 30min, taking out, rolling liquid, and drying at the temperature of 80 ℃ for 8h, thereby obtaining the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g:10mL, the soaking temperature is 45 ℃, the soaking time is 80min, the fabric with the antibacterial and antistatic functions is obtained after taking out, rolling the fabric, the rolling surplus rate is 65%, and drying the fabric for 6h at 120 ℃.
The pretreatment liquid is 3-chloro-2-hydroxypropyl trimethyl ammonium chloride water solution with pH=8 and concentration of 5 g/L.
The functional finishing liquid is prepared from the following raw materials: 15wt% of an antibacterial agent, 3wt% of N-cyclohexyl-gamma-aminopropyl methyl dimethoxy silane, 2wt% of sodium orthosilicate, 6.5wt% of a composite flame retardant and the balance of water.
The preparation method of the composite flame retardant comprises the following steps:
adding 15 parts by weight of silicon dioxide and 2.5 parts by weight of silicon carbide into 60 parts by weight of 30wt% isopropanol water solution, performing ultrasonic dispersion for 8min, adding 2 parts by weight of tris (trimethylsiloxy) ethoxysilane, 0.5 part by weight of sodium lignin sulfonate and 1 part by weight of hydroxymethyl cellulose, stirring at 90 ℃ for 6h at a rotating speed of 200rpm, centrifuging, and drying to obtain modified silicon dioxide; mixing 7.5 parts by weight of hexamethylenediamine tetramethylene phosphonic acid, 25 parts by weight of (aminomethylene) diphosphonic acid, 15 parts by weight of urea and 5 parts by weight of water, and stirring at 110 ℃ for 1h at a rotation speed of 100 rpm; and adding 10 parts by weight of the modified silicon dioxide, continuously stirring for 0.5h, heating to 185 ℃ for reaction for 3h, and drying to obtain the composite flame retardant.
The antibacterial agent is a silver nanoparticle compound; the preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 50 parts by weight of ketoconazole and 110 parts by weight of beta-cyclodextrin into 100 parts by weight of water, stirring at room temperature for 72 hours at a rotation speed of 1200rpm, filtering, and collecting filtrate, namely a modified beta-cyclodextrin solution;
s2, adding 5 parts by weight of silver nitrate and 5 parts by weight of reducing agent into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at the room temperature for 20min at the rotating speed of 1000rpm, then adding 0.1mol/L sodium hydroxide aqueous solution to adjust the pH value to 10, stirring at the rotating speed of 1000rpm at the temperature of 90 ℃ for reaction for 3h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain the silver nanoparticle composite.
The reducing agent is a mixture of cactus extract and aloe extract, wherein the mass ratio of the cactus extract to the aloe extract is 2:3. the flame retardant properties (conditions: ambient temperature 27 ℃, relative humidity 25%, sample size 200mm x 80mm, longitudinal direction of the sample perpendicular, and longitudinal direction toward the test flame) of the fabric with antibacterial and antistatic functions of example 8 were measured according to GB/T8746-2009, and the fabric 20s of example 8 was not ignited.
Test example 1
And (3) evaluating antibacterial performance: according to the national standard GB/T20944.3-2008, evaluation of antibacterial Properties of textiles, section 3: and (3) carrying out antibacterial performance test on the fabric with the antibacterial and antistatic functions obtained in the embodiment by using an oscillation method. The test bacteria are respectively as follows: gram-negative bacteria-E.coli (AATCC 29522), gram-positive bacteria-Staphylococcus aureus (AATCC 6538) and the fungus-Candida albicans (ATCC 10231).
Table 1 results of antibacterial property test
From the above, the antibacterial rate of example 2 is obviously superior to that of example 1, which is probably because after the fabric is pretreated, the abundant hydroxyl groups in the crystal structure of the cotton fiber are grafted and substituted by the cationic agent, and the ability of reducing the hydrogen band density to partially destroy the crystal cotton fiber structure is achieved, so that the reactivity of the fabric is improved, and the antibacterial rate of the fabric is improved by grafting through a strong coordination bond formed between the subsequent antibacterial agent and the pre-finishing agent. The antibacterial rate of example 2 is lower than that of example 3, probably because citric acid in example 2 is only used as a reducing agent for preparing silver nanoparticles, while example 3 uses a plant extract as a reducing agent for preparing silver nanoparticles, and bioactive substances in the plant extract are coated on the surfaces of the silver nanoparticles, so that the generated silver nanoparticles have better dispersibility and uniform size, and the bioactive substances can enhance the effect with the pretreated fabric, so that the antibacterial activity is improved. Compared with examples 2-3, the antibacterial performance of the fabric with antibacterial and antistatic functions prepared in examples 4-5 is obviously improved, and particularly the inhibition effect on fungi is more obvious, which is mainly probably because the silver nanoparticles are compounded with the beta-cyclodextrin encapsulated with the antifungal drug ketoconazole, so that the antifungal performance of the ketoconazole is combined with the antibacterial performance of the silver nanoparticles, and meanwhile, the silver nanoparticles reduce the release path of the ketoconazole in the beta-cyclodextrin cavity, thereby prolonging the action time of the ketoconazole and promoting the improvement of the antifungal and antibacterial performances of the fabric.
Test example 2
Washing resistance test: the fabric with antibacterial and antistatic functions prepared in the example is prepared according to a bath ratio of 1g:40mL was placed in a standard aqueous detergent solution at 40℃at 5g/L, washed on a domestic washing machine for 10min as one time, and dried in an 80℃oven for a total of 50 washes. Antibacterial performance test was performed on the fabric with antibacterial and antistatic functions after 50 times of washing according to the method of test example 1.
Table 2 washing resistance test results
The result shows that after the fabric is pretreated, the combination effect between the fabric and the silver nanoparticle compound prepared by the specific method is enhanced, and the high antibacterial rate can be still maintained after the fabric is washed for a plurality of times.
Test example 3
Antistatic property evaluation: evaluation of textile Electrostatic Properties according to national Standard GB/T12703.1-2008, section 1: static voltage and half life are tested on the fabric with antibacterial and antistatic functions prepared in the embodiment, and the test conditions are as follows: the temperature is 20 ℃ and the relative humidity is 35%. The half-life(s) of the electrostatic voltage was evaluated. Three samples were tested for each set of examples and averaged.
TABLE 3 antistatic Performance test results
| Half-life, s | |
| Example 1 | 3.54 |
| Example 2 | 3.07 |
| Example 3 | 2.71 |
| Example 4 | 2.46 |
Compared with the embodiment 1, the half-life period of the embodiment 2 is obviously shortened, probably because the antibacterial agent-silver nano particles have better conductivity, a charge dissipation path can be formed on the surface of the fabric, and meanwhile, the silver nano particles have larger surface area and higher surface activity, so that the adsorption of moisture on the surface of the fabric is facilitated, and the static charge can be quickly dissipated on the surface of the fabric.
Test example 4
Evaluation of ultraviolet resistance: the ultraviolet-proof effect of the fabric with the antibacterial and antistatic functions prepared in the example is tested according to GB/T18830-2009 evaluation of ultraviolet-proof Performance of textiles by using an ultraviolet-1000F textile ultraviolet resistance factor tester produced by Labsphere company of America. The evaluation was performed by Ultraviolet Protection Factor (UPF). Three samples were tested for each set of examples and averaged.
TABLE 4 ultraviolet resistance test results
| UPF value | |
| Example 1 | 30.67 |
| Example 2 | 38.21 |
| Example 3 | 43.45 |
| Example 4 | 47.30 |
The result shows that the fabric with the antibacterial and antistatic functions prepared by the technical scheme of the invention can improve the ultraviolet protection function of the fabric to a certain extent, and has better market prospect.
Claims (3)
1. The fabric with the antibacterial and antistatic functions is characterized by being prepared by the following method:
(1) The fabric and the pretreatment liquid are mixed according to a bath ratio of 1g: (25-35) mL is immersed in pretreatment liquid at 40-60 ℃ for 40-60min, then is padded at 90-105 ℃ under 5-8MPa for 3-8min, is dried at 45-60 ℃ for 8-15min, and then is subjected to a bath ratio of 1g: immersing (25-35) mL into 65-80 ℃ water, preserving heat for 25-40min, taking out, rolling liquid, wherein the rolling surplus rate is 60-70%, and drying for 6-10h at 75-90 ℃ to obtain the pre-finished fabric;
(2) Immersing the pre-finished fabric into a functional finishing liquid, wherein the bath ratio of the pre-finished fabric to the functional finishing liquid is 1g: (8-15) mL, wherein the soaking temperature is 40-60 ℃, the soaking time is 60-90min, the fabric is taken out, the rolling liquid and the rolling surplus rate are 60-70%, and the fabric with the antibacterial and antistatic functions is obtained by drying for 4-8h at 100-130 ℃; the functional finishing liquid is prepared from the following raw materials: 10-20wt% of antibacterial agent, 2-5wt% of coupling agent, 1-4wt% of sodium orthosilicate, 5-8wt% of composite flame retardant and the balance of water;
the antibacterial agent is a silver nanoparticle compound; the preparation method of the silver nanoparticle composite comprises the following steps:
s1, adding 48-55 parts by weight of ketoconazole and 100-115 parts by weight of beta-cyclodextrin into 95-110 parts by weight of water, stirring at room temperature for 60-80 hours at a rotating speed of 1000-1500rpm, filtering, and collecting filtrate to obtain a modified beta-cyclodextrin solution;
s2, adding 4-8 parts by weight of silver nitrate and 3-6 parts by weight of reducing agent into the whole modified beta-cyclodextrin solution obtained in the step S1, stirring at the room temperature at the speed of 800-1200rpm for 15-30min, then adding 0.05-0.2mol/L sodium hydroxide aqueous solution to adjust the pH value to 9-11, stirring at the temperature of 85-100 ℃ at the speed of 800-1200rpm for reacting for 2-5h, cooling to the room temperature after the reaction is finished, centrifuging, washing and drying to obtain a silver nanoparticle compound; the reducing agent is a mixture of cactus extract and aloe extract;
the preparation method of the composite flame retardant comprises the following steps:
adding 10-20 parts by weight of silicon dioxide and 2-3 parts by weight of silicon carbide into 50-80 parts by weight of 20-50wt% isopropanol water solution, performing ultrasonic dispersion for 5-10min, adding 1-2 parts by weight of tris (trimethylsiloxy) ethoxysilane, 0.5-1 part by weight of sodium lignin sulfonate and 0.5-1 part by weight of hydroxymethyl cellulose, stirring at 80-90 ℃ for 3-6h at a rotating speed of 100-200rpm, centrifuging and drying to obtain modified silicon dioxide; mixing 6-8 parts by weight of hexamethylenediamine tetramethylene phosphonic acid, 20-30 parts by weight of (aminomethylene) diphosphonic acid, 10-20 parts by weight of urea and 5-10 parts by weight of water, and stirring at a speed of 50-100rpm for 1-2 hours at 105-120 ℃; and adding 5-15 parts by weight of the modified silicon dioxide, continuously stirring for 0.5-1h, heating to 180-195 ℃ for reacting for 2-5h, and drying to obtain the composite flame retardant.
2. The fabric with antibacterial and antistatic functions according to claim 1, wherein the pretreatment liquid is an aqueous pretreatment solution with ph=7.5-9 and concentration of 3-6 g/L.
3. The fabric with antibacterial and antistatic functions according to claim 2, wherein the pre-finishing agent is any one of stearyl phosphate betaine, 3-chloro-2-hydroxypropyl trimethyl ammonium chloride and lignin sulfonate.
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