CN114717836B - Silver yarn fabric and preparation method thereof - Google Patents

Silver yarn fabric and preparation method thereof Download PDF

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Publication number
CN114717836B
CN114717836B CN202210458005.3A CN202210458005A CN114717836B CN 114717836 B CN114717836 B CN 114717836B CN 202210458005 A CN202210458005 A CN 202210458005A CN 114717836 B CN114717836 B CN 114717836B
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fiber
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silver
fabric
antibacterial
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CN114717836A (en
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汪汉君
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Hangzhou Xiaoshan Dongda Textile Co ltd
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Hangzhou Xiaoshan Dongda Textile Co ltd
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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
    • D06M11/73—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 carbon or compounds thereof
    • D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
    • D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
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    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/47—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads multicomponent, e.g. blended yarns or threads
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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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
    • D06M11/07—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/11—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 halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
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    • 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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Abstract

The application relates to the technical field of clothing fabrics, and in particular discloses a silver silk fabric and a preparation method thereof, wherein the silver silk fabric comprises the following raw materials in parts by weight: 40-60 parts of polyacrylonitrile fiber, 20-30 parts of modified bamboo fiber, 10-20 parts of chitosan fiber, 8-12 parts of silver fiber, 3-6 parts of polyurethane emulsion, 5-8 parts of cross-linking agent and 2-3 parts of auxiliary agent. The silver yarn fabric prepared by the method has good mechanical strength, chemical resistance and antibacterial property, and further ensures the strength, elasticity, softness and skin-friendly feel of the fabric.

Description

Silver yarn fabric and preparation method thereof
Technical Field
The application relates to the technical field of clothing fabrics, in particular to a silver yarn fabric and a preparation method thereof.
Background
Along with the improvement of the living standard of people, the requirements of people on clothes are not only limited to the aspects of comfort in wearing, soft hand feeling and the like, but also the functional requirements on the fabric are higher and higher, such as the functional requirements on quick drying, moisture removal, antibacterial and the like of the fabric.
People in summer or after exercise easily sweat, and bacteria are easy to grow on the fabric of the clothes due to the sweat, so that the physical health of people is affected.
Therefore, there is still a need for a silver wire fabric capable of inhibiting bacterial growth and a method of making the same.
Disclosure of Invention
In order to solve the problem that bacteria are easy to grow on the garment fabric, the application provides a silver yarn fabric and a preparation method thereof.
In a first aspect, the silver yarn fabric provided by the application adopts the following technical scheme:
The silver silk fabric comprises the following raw materials in parts by weight: 40-60 parts of polyacrylonitrile fiber, 20-30 parts of modified bamboo fiber, 10-20 parts of chitosan fiber, 8-12 parts of silver fiber, 3-6 parts of polyurethane emulsion, 5-8 parts of cross-linking agent and 2-3 parts of auxiliary agent.
By adopting the technical scheme, the modified bamboo fiber has good natural antibacterial property, mite resistance and deodorization characteristics, so that the prepared fabric not only can resist bacteria and protect skin health of a human body, but also has good sterilizing, antibacterial and deodorizing effects, and the prepared fabric has good sterilizing, deodorizing, ventilation and washing resistance effects, but has poor wear resistance and acid and alkali resistance, and the modified bamboo fiber has strong wear resistance and can improve the strength of the fabric; but the strength of the modified bamboo fiber is poor, the chitosan fiber has better mechanical strength, the strength of the fabric is further improved, and meanwhile, the chitosan fiber has better antibacterial property and moisture absorption property, and the antibacterial property of the fabric is further improved.
The polyacrylonitrile fiber is used as a matrix of the fabric, has better oxidation resistance, light resistance and acid resistance, but has poorer alkali resistance, the chitosan fiber has better mechanical strength, biocompatibility and alkali resistance, the chitosan fiber can compensate for the poor alkali resistance of the polyacrylonitrile fiber, the chemical resistance of the fabric prepared subsequently is improved, the polyacrylonitrile fiber and the chitosan fiber are matched for use, the poor acid and alkali resistance of the silver fiber can be compensated, the chemical resistance of the fabric is further improved, and the strength, elasticity, softness and skin-friendly feel of the fabric are further ensured.
Preferably, the preparation method of the modified bamboo fiber comprises the following steps:
S1, dispersing graphene oxide in deionized water, performing ultrasonic dispersion for 1-3 hours at room temperature to obtain graphene oxide dispersion liquid, adding the graphene oxide dispersion liquid into 10-15% polyvinyl alcohol solution, and stirring for 4-8 hours at the temperature of 90-100 ℃ to obtain a mixed liquid I;
S2, soaking the bamboo fibers in a sodium hydroxide solution, taking out, washing with water to be neutral, sequentially adding sodium chloride, polyethylene glycol 400 and maleic anhydride, stirring for 2-3 hours at the temperature of 80-90 ℃, washing with water to be neutral, and drying to obtain pretreated bamboo fibers;
S3, adding the pretreated bamboo fibers into the first mixed solution, adding the rosin quaternary ammonium salt, uniformly mixing, stirring for 1-2 hours at the temperature of 30-50 ℃, taking out, washing and drying to obtain the modified bamboo fibers.
By adopting the technical scheme, the graphene oxide is a hydrophilic substance, has good dispersibility in water, and the polyvinyl alcohol solution can be well mixed with the graphene oxide at the temperature of 90-100 ℃, and a large number of carboxyl groups and other functional groups existing on the surface of the graphene oxide can form condensation reaction with hydroxyl groups in the polyvinyl alcohol, so that the graphene oxide solution becomes a stable dispersion solution.
The surface of the bamboo fiber is roughened after alkali treatment, and the fiber bundles are split into smaller fibers, so that the bonding capability between the subsequent bamboo fiber and other components is improved, and meanwhile, the bamboo fiber after alkali treatment still has a strong supporting effect. The sodium chloride firstly activates the bamboo fiber, enhances the activity of the bamboo fiber, is favorable for increasing the grafting rate of the subsequent bamboo fiber, and the polyethylene glycol 400 can be grafted on the surface of the bamboo fiber, so that the surface of the bamboo fiber is hydroxylated, the further grafting treatment is carried out by using the maleic anhydride, the maleic anhydride can be subjected to esterification reaction with the hydroxyl on the surface of the bamboo fiber, the coupling effect is achieved, and the antibacterial property and the activity of the surface of the bamboo fiber are further enhanced.
The pretreated bamboo fiber is mixed with the first mixed solution, so that the bamboo fiber is easy to graft with the first mixed solution, then rosin quaternary ammonium salt is added, graphene oxide is grafted with the rosin quaternary ammonium salt, and the antibacterial property of the bamboo fiber is further enhanced; and the use of polyethylene glycol 400, maleic anhydride and rosin quaternary ammonium salt further enhances the surface stability of the bamboo fiber, so that the bamboo fiber still maintains the surface activity after washing, and further the antibacterial durability of the bamboo fiber is enhanced, and the bamboo fiber has antibacterial durability.
Preferably, the mass ratio of the sodium chloride to the polyethylene glycol 400 to the maleic anhydride is 1:2-5:0.5-1.5.
By adopting the technical scheme, the sodium chloride is a good activating reagent, the sodium chloride activates the bamboo fibers, the structure of the surfaces of the bamboo fibers is improved, the subsequent grafting treatment and compatibility of the bamboo fibers and other reagents are facilitated, the polyethylene glycol 400 is grafted on the surfaces of the bamboo fibers, maleic anhydride can be subjected to esterification reaction with hydroxyl groups on the surfaces of the bamboo fibers, a coupling effect is achieved, and the strength and antibacterial property of the bamboo fibers are further enhanced.
Preferably, the volume ratio of the rosin quaternary ammonium salt to the first mixed solution is 1:1.5-3.
By adopting the technical scheme, the rosin quaternary ammonium salt is a surfactant with strong sterilization performance, the rosin quaternary ammonium salt can be grafted with graphene oxide, so that the antibacterial performance of the bamboo fiber is enhanced, and the surface of the bamboo fiber is coated with the rosin quaternary ammonium salt, so that the rosin quaternary ammonium salt is not easy to lose during washing, the cohesiveness of the bamboo fiber with the graphene oxide, polyethylene glycol 400 and maleic anhydride is enhanced, and the antibacterial performance of the bamboo fiber is durable.
Preferably, the pretreatment process of the silver silk fiber comprises the following steps: adding silver silk fiber into sodium hydroxide solution, stirring for 2-3h at 30-40 ℃, then sequentially adding PVP, ethanol and nano silver particles, continuously stirring for 1-3h, and finally washing and drying to obtain pretreated silver silk fiber.
By adopting the technical scheme, the surface of the silver silk fiber is etched by using the sodium hydroxide solution, so that a three-dimensional porous structure is formed on the surface of the silver silk fiber, PVP, ethanol and nano silver particles are added, the PVP can form a steric hindrance effect, the aggregation probability of the nano silver particles is reduced, the nano silver particles can be uniformly distributed in the ethanol, meanwhile, the nano silver particles can be filled into the three-dimensional porous structure on the surface of the metal fiber, the nano silver particles, PVP and ethanol can quickly kill bacteria through a synergistic effect while ensuring safety, a long-acting antibacterial and bacteriostatic effect can be maintained, the good mobility of the nano silver particles is ensured at the temperature of 30-40 ℃, finally washing and drying are performed, the bonding strength of the nano silver particles and the silver silk fiber is further enhanced, and the durability of antibacterial property is further ensured.
Preferably, the mass ratio of PVP to ethanol to nano silver particles is 1:20-30:0.06-0.15.
By adopting the technical scheme, the nano silver particles are dispersed in the ethanol, meanwhile, PVP is a surfactant, and the PVP, the ethanol and the nano silver particles are mixed, so that the nano silver particles have good dispersibility, the subsequent nano silver particles can enter the pore structure of the surface of the silver silk fiber, and the antibacterial property of the silver silk fiber is further enhanced.
Preferably, the cross-linking agent is hydroxypropyl methacrylate and/or benzoyl peroxide.
Preferably, the auxiliary agent is one or more of a leveling agent, a defoaming agent or a wetting agent.
In a second aspect, the application provides a preparation method of a silver yarn fabric, which adopts the following technical scheme:
The preparation method of the silver silk fabric comprises the following steps:
s1: spinning polyacrylonitrile fiber and chitosan fiber into combed yarn, wherein the yarn count is 80S/1-70S/1, the twist coefficient is 130-180, spinning modified bamboo fiber and silver fiber into antibacterial yarn, the yarn count is 60S/1-50S/1, and the twist coefficient is 90-130;
S2: mixing combed yarn, antibacterial yarn, polyurethane emulsion, crosslinking agent and auxiliary agent, stirring at 80-100deg.C for 2-3 hr, taking out, oven drying, and spinning to obtain the final product.
According to the technical scheme, the polyacrylonitrile fiber and the chitosan fiber are woven into the combed yarn, the defect of poor alkali resistance of the polyacrylonitrile fiber is overcome by matching the polyacrylonitrile fiber and the chitosan fiber, the antibacterial yarn is woven by matching the modified bamboo fiber and the silver fiber, the defect of poor wear resistance and poor acid and alkali resistance of the silver fiber is overcome by matching the modified bamboo fiber and the silver fiber, and finally the combed yarn, the antibacterial yarn, the polyurethane emulsion, the cross-linking agent and the auxiliary agent are mixed for weaving, so that the obtained fabric has good chemical resistance, strength, antibacterial property and antibacterial durability.
In summary, the application has the following beneficial effects:
1. The modified bamboo fiber has good natural antibacterial property, mite resistance and deodorization characteristics, so that the prepared fabric not only can resist bacteria and protect skin health of a human body, but also has good effects of sterilization, antibiosis and deodorization, but has poor wear resistance and acid and alkali resistance, and the modified bamboo fiber has strong wear resistance and can improve the strength of the fabric; but the strength of the modified bamboo fiber is poor, the chitosan fiber has better mechanical strength, the strength of the fabric is further improved, and meanwhile, the chitosan fiber has better antibacterial property and moisture absorption property, and the antibacterial property of the fabric is further improved. .
2. The polyacrylonitrile fiber is used as a matrix of the fabric, has good oxidation resistance, light resistance and acid resistance, but has poor alkali resistance, the chitosan fiber has good mechanical strength, biocompatibility and alkali resistance, the chitosan fiber can make up for the poor alkali resistance of the polyacrylonitrile fiber, the chemical resistance of the fabric prepared subsequently is improved, the polyacrylonitrile fiber and the chitosan fiber are matched for use, the poor acid and alkali resistance of the silver fiber can be made up, the chemical resistance of the fabric is further improved, and the strength, elasticity, softness and skin-friendly feel of the fabric are further ensured.
3. The pretreated bamboo fiber is mixed with the first mixed solution, so that the bamboo fiber is easy to graft with the first mixed solution, and then graphene oxide is grafted with rosin quaternary ammonium salt, so that the antibacterial property of the bamboo fiber is further enhanced; and the use of polyethylene glycol 400, maleic anhydride and rosin quaternary ammonium salt further enhances the surface stability of the bamboo fiber, so that the bamboo fiber still maintains the surface activity after washing, and further the antibacterial durability of the bamboo fiber is enhanced, and the bamboo fiber has antibacterial durability.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example of modified bamboo fiber
Preparation example 1
S1, dispersing 30g of graphene oxide in 12L of deionized water, performing ultrasonic dispersion for 1h at room temperature to obtain graphene oxide dispersion liquid, adding the graphene oxide dispersion liquid into 120L of 10% polyvinyl alcohol solution, and stirring for 8h at 90 ℃ to obtain a mixed liquid I;
S2, soaking 5kg of bamboo fibers in 30L of sodium hydroxide solution, taking out, washing to neutrality, sequentially adding 50kg of sodium chloride, polyethylene glycol 400 and maleic anhydride, stirring at 90 ℃ for 2 hours, washing to neutrality, and drying to obtain pretreated bamboo fibers; wherein the mass ratio of the sodium chloride to the polyethylene glycol 400 to the maleic anhydride is 1:5:1.5;
S3, adding 1kg of pretreated bamboo fibers into the first mixed solution, adding rosin quaternary ammonium salt, uniformly mixing, stirring for 1h at 50 ℃, taking out, washing and drying to obtain modified bamboo fibers; wherein the volume ratio of the rosin quaternary ammonium salt to the first mixed solution is 1:1.5.
Preparation example 2
S1, dispersing 40g of graphene oxide in 15L of deionized water, performing ultrasonic dispersion for 3 hours at room temperature to obtain graphene oxide dispersion liquid, adding the graphene oxide dispersion liquid into 130L of polyvinyl alcohol solution with mass concentration of 10%, and stirring for 4 hours at 100 ℃ to obtain a mixed liquid I;
S2, soaking 6kg of bamboo fibers in 40L of sodium hydroxide solution, taking out, washing to be neutral, sequentially adding 60kg of sodium chloride, polyethylene glycol 400 and maleic anhydride, stirring at 80 ℃ for 3 hours, washing to be neutral, and drying to obtain pretreated bamboo fibers; wherein the mass ratio of the sodium chloride to the polyethylene glycol 400 to the maleic anhydride is 1:2:0.5;
S3, adding 1kg of pretreated bamboo fibers into the first mixed solution, adding rosin quaternary ammonium salt, uniformly mixing, stirring for 2 hours at the temperature of 30 ℃, taking out, washing and drying to obtain modified bamboo fibers; wherein the volume ratio of the rosin quaternary ammonium salt to the first mixed solution is 1:3.
Preparation example 3
The difference from preparation example 1 is that polyethylene glycol 400 is replaced with an equal amount of sodium chloride.
Preparation example 4
The difference from preparation 1 is that the maleic anhydride is replaced by an equivalent amount of sodium chloride.
Preparation example 5
The difference from preparation 1 is that the sodium chloride is replaced by an equivalent amount of polyethylene glycol 400.
Preparation example 6
The difference from example 1 is that the rosin quaternary ammonium salt was replaced with an equal amount of the mixed solution one.
Preparation example of pretreatment of silver fiber
Preparation example 7
Adding 1kg of silver silk fiber with the diameter of 0.015-0.025mm into 20L of sodium hydroxide solution, stirring for 3 hours at the temperature of 30 ℃, then sequentially adding 0.5kg of PVP, ethanol and nano silver particles, continuously stirring for 3 hours, and finally washing and drying to obtain pretreated silver silk fiber; wherein the mass ratio of PVP, ethanol and nano silver particles is 1:20:0.06.
Preparation example 8
Adding 1kg of silver silk fiber with the diameter of 0.015-0.025mm into 20L of sodium hydroxide solution, stirring for 2 hours at the temperature of 40 ℃, then sequentially adding 0.5kg of PVP, ethanol and nano silver particles, continuously stirring for 1 hour, and finally washing and drying to obtain pretreated silver silk fiber; the mass ratio of PVP, ethanol and nano silver particles is 1:30:0.15.
Preparation example 9
The difference from preparation 1 is that PVP is replaced with an equal amount of ethanol.
Preparation example 10
The difference from preparation example 1 is that the silver wire fiber is not pretreated.
Examples
Example 1
The modified bamboo fiber is selected from preparation example 1 of modified bamboo fiber; the silver silk fiber is selected from preparation example 7 of pretreatment of silver silk fiber;
The silver silk fabric comprises the following raw materials in parts by weight: 40-60 parts of polyacrylonitrile fiber, 20-30 parts of modified bamboo fiber, 10-20 parts of chitosan fiber, 8-12 parts of silver fiber, 3-6 parts of polyurethane emulsion, 5-8 parts of hydroxypropyl methacrylate and 2-3 parts of flatting agent.
The preparation method of the silver silk fabric comprises the following steps:
s1: spinning polyacrylonitrile fiber and chitosan fiber into combed yarn, wherein the yarn count is 80S/1, the twist coefficient is 180, spinning modified bamboo fiber and silver fiber into antibacterial yarn, the yarn count is 50S/1, and the twist coefficient is 90;
S2: mixing combed yarn, antibacterial yarn, polyurethane emulsion, hydroxypropyl methacrylate and flatting agent, stirring for 3 hours at 80 ℃, then fishing out, drying and spinning to obtain fabric; wherein the mass ratio of combed yarn to antibacterial yarn is 3:1.
Example 2
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 1 of modified bamboo fiber; the silver silk fiber was selected from preparation example 8 of pretreatment of silver silk fiber.
Example 3
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 1 of modified bamboo fiber; the silver silk fiber was selected from preparation example 9 of pretreatment of silver silk fiber.
Example 4
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 1 of modified bamboo fiber; the silver silk fiber was selected from preparation example 10 of pretreatment of silver silk fiber.
Example 5
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 2 of modified bamboo fiber; the silver silk fiber was selected from preparation example 7 of pretreatment of silver silk fiber.
Example 6
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 3 of modified bamboo fiber; the silver silk fiber was selected from preparation example 7 of pretreatment of silver silk fiber.
Example 7
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 4 of modified bamboo fiber; the silver silk fiber was selected from preparation example 7 of pretreatment of silver silk fiber.
Example 8
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 5 of modified bamboo fiber; the silver silk fiber was selected from preparation example 7 of pretreatment of silver silk fiber.
Example 9
A silver silk fabric differing from example 1 in that the modified bamboo fiber is selected from preparation example 6 of modified bamboo fiber; the silver silk fiber was selected from preparation example 7 of pretreatment of silver silk fiber.
Example 10
The silver silk fabric is different from the example 1 in that the silver silk fabric comprises the following raw materials in parts by weight: 40 parts of polyacrylonitrile fiber, 20 parts of modified bamboo fiber, 20 parts of chitosan fiber, 8 parts of silver silk fiber, 3 parts of polyurethane emulsion, 5 parts of hydroxypropyl methacrylate and 2 parts of flatting agent.
Example 11
The silver silk fabric is different from the example 1 in that the silver silk fabric comprises the following raw materials in parts by weight: 60 parts of polyacrylonitrile fiber, 30 parts of modified bamboo fiber, 10 parts of chitosan fiber, 12 parts of silver silk fiber, 6 parts of polyurethane emulsion, 8 parts of hydroxypropyl methacrylate and 3 parts of flatting agent.
Comparative example
Comparative example 1
The silver silk fabric is different from the example 1 in that the silver silk fabric comprises the following raw materials in parts by weight: 35 parts of polyacrylonitrile fiber, 35 parts of modified bamboo fiber, 8 parts of chitosan fiber, 15 parts of silver silk fiber, 8 parts of polyurethane emulsion, 10 parts of hydroxypropyl methacrylate and 5 parts of flatting agent.
Comparative example 2
The silver silk fabric is different from the example 1 in that the silver silk fabric comprises the following raw materials in parts by weight: 65 parts of polyacrylonitrile fiber, 15 parts of modified bamboo fiber, 22 parts of chitosan fiber, 5 parts of silver silk fiber, 2 parts of polyurethane emulsion, 3 parts of hydroxypropyl methacrylate and 1 part of flatting agent.
Comparative example 3
A silver silk fabric differs from example 1 in that the modified bamboo fibers are replaced with equal amounts of bamboo fibers.
Performance test
The silver silk fabrics prepared in examples 1-11 and comparative examples 1-3 were respectively prepared into small samples, each of which had a size of 10cm×10cm, according to GB/T20944.3-2008, evaluation of antibacterial Properties of textiles section 3: detecting by an oscillation method; the antibacterial test is carried out by selecting staphylococcus aureus and candida albicans, measuring the concentration of viable bacteria of the bacterial liquid before and after oscillation, and calculating the antibacterial rate.
The silver silk fabric is washed for 10 times, 30 times and 50 times according to the method in GB/T8629-2017 household washing and drying program for textile test, washing is carried out for 1min each time, the silver silk fabric prepared in the examples 1-11 and the comparative examples 1-3 is placed in an environment with the temperature of 20-25 ℃ and the relative humidity of 65-80%, and after a period of time, the antibacterial rate of the washed silver silk fabric is detected.
TABLE 1 antibacterial Property test of silver wire fabrics of examples 1-11 and comparative examples 1-3 and antibacterial test results after washing 10, 30, 50 times
As can be seen from the data in Table 1, the antibacterial rates of the silver wire fabric prepared according to the methods in examples 1-11 on candida albicans and staphylococcus aureus reach more than 94%, the silver wire fabric has a better antibacterial effect, and the antibacterial rates of the silver wire fabric in washing for 10 times, 30 times and 50 times reach more than 91%, wherein the example 1 is the best example, and the antibacterial rates of the silver wire fabric in washing for candida albicans and staphylococcus aureus reach more than 99.5%; and after washing the silver silk fabric for 10 times, 30 times and 50 times, the antibacterial rates of the silver silk fabric prepared in the examples 1-11 on candida albicans and staphylococcus aureus are all kept above 91%, which shows that the silver silk fabric prepared by the invention has good antibacterial performance and antibacterial durability.
In the embodiment 6, polyethylene glycol 400 is not added in the preparation of the modified bamboo fiber, the antibacterial rates of the prepared silver wire fabric for candida albicans and staphylococcus aureus before washing are respectively 99.0% and 99.1%, and after 50 times of washing, the antibacterial rates are respectively 97.3% and 97.2%, and therefore, the addition of the polyethylene glycol 400 influences the surface structure of the bamboo fiber, and further influences the antibacterial property and antibacterial durability of the subsequent fabric; in the embodiment 7, maleic anhydride is not added in the preparation of the modified bamboo fiber, the antibacterial rates of the prepared silver silk fabric for candida albicans and staphylococcus aureus before washing are respectively 99.1% and 99.3%, and after 50 times of washing, the antibacterial rates are respectively 97.6% and 97.5%, so that the maleic anhydride is beneficial to the surface grafting of the bamboo fiber, and the antibacterial property and the antibacterial durability of the surface of the bamboo fiber are further affected; in the embodiment 8, sodium chloride is not added in the preparation of the modified bamboo fiber, the antibacterial rates of the prepared silver silk fabric for candida albicans and staphylococcus aureus before washing are respectively 99.4% and 99.5%, and after 50 times of washing, the antibacterial rates are respectively 97.7% and 98.3%, so that the influence of the sodium chloride on the antibacterial property and the antibacterial durability of the bamboo fiber is small, and the sodium chloride activates the bamboo fiber, thereby being beneficial to increasing the grafting rate of the subsequent bamboo fiber.
Example 9 in the preparation of the modified bamboo fiber, rosin-based quaternary ammonium salt is not added, the antibacterial rates of the prepared silver silk fabric on candida albicans and staphylococcus aureus before washing are respectively 98.6% and 98.8%, and after 50 times of washing, the antibacterial rates are respectively 97.2% and 98.1%, so that the rosin-based quaternary ammonium salt influences the antibacterial property and antibacterial durability of the modified bamboo fiber, and the rosin-based quaternary ammonium salt can be grafted with graphene oxide, so that the surface property of the modified bamboo fiber is further improved.
In the embodiment 3, PVP is not added in the pretreatment process of the silver wire fiber, the antibacterial rates of the prepared silver wire fabric on candida albicans and staphylococcus aureus before washing are respectively 99.1% and 99.2%, and after washing for 50 times, the antibacterial rates are respectively 96.3% and 96.5%, so that the addition of PVP influences the modification of the silver wire fiber, further influences the antibacterial property and antibacterial durability of the silver wire fabric, the PVP can form a steric hindrance effect, the aggregation probability of nano silver particles is reduced, the probability of filling the nano silver particles into a three-dimensional porous structure on the surface of the metal fiber is further improved, the bonding strength of the nano silver particles and the silver wire fiber is further enhanced, and further the durability of the antibacterial property is ensured.
In example 4, before the silver silk fiber is subjected to pretreatment, the antibacterial rates of the prepared silver silk fabric on candida albicans and staphylococcus aureus are 94.8% and 95.2% respectively, and after 50 times of washing, the antibacterial rates are 91.9% and 92.2% respectively, so that the pretreatment of the silver silk fiber is beneficial to improving the antibacterial property of the silver silk fiber, so that the antibacterial property and the antibacterial durability of the silver silk fabric are influenced, and the durability of the antibacterial property is further ensured.
Comparative examples 1-2 the contents of the components were varied, and it is seen from table 1 that the antibacterial rates of the prepared silver wire fabric for candida albicans and staphylococcus aureus before washing were 96.2% and 96.5% respectively, and after 50 times of washing, the antibacterial rates were 92.7% and 93.1% respectively, and it was found that the contents of the components had a synergistic interaction, and the content variation of the components affected the antibacterial property and antibacterial durability of the silver wire fabric.
In comparative example 3, the same amount of bamboo fibers are used for replacing modified bamboo fibers, the antibacterial rates of the prepared silver silk fabric for candida albicans and staphylococcus aureus before washing are 92.8% and 94.2% respectively, and after 50 times of washing, the antibacterial rates are 90.3% and 90.8% respectively, so that the fabric prepared from the modified bamboo fibers has good antibacterial property and antibacterial durability.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims (1)

1. The silver silk fabric is characterized by comprising the following raw materials in parts by weight: 40 parts of polyacrylonitrile fiber, 20 parts of modified bamboo fiber, 20 parts of chitosan fiber, 8 parts of silver fiber, 3 parts of polyurethane emulsion, 5 parts of hydroxypropyl methacrylate and 2 parts of flatting agent;
The preparation method of the modified bamboo fiber comprises the following steps:
s1, dispersing 30g of graphene oxide in 12L of deionized water, performing ultrasonic dispersion for 1h at room temperature to obtain graphene oxide dispersion liquid, adding the graphene oxide dispersion liquid into 120L of 10% polyvinyl alcohol solution, and stirring for 8h at 90 ℃ to obtain a mixed liquid I;
S2, soaking 5kg of bamboo fibers in 30L of sodium hydroxide solution, taking out, washing to neutrality, sequentially adding 50kg of sodium chloride, polyethylene glycol 400 and maleic anhydride, stirring at 90 ℃ for 2 hours, washing to neutrality, and drying to obtain pretreated bamboo fibers; wherein the mass ratio of the sodium chloride to the polyethylene glycol 400 to the maleic anhydride is 1:5:1.5;
S3, adding 1kg of pretreated bamboo fibers into the first mixed solution, adding rosin quaternary ammonium salt, uniformly mixing, stirring for 1h at 50 ℃, taking out, washing and drying to obtain modified bamboo fibers; wherein, the volume ratio of the rosin quaternary ammonium salt to the first mixed solution is 1:1.5;
The preparation method of the silver silk fabric comprises the following steps:
s1: spinning polyacrylonitrile fiber and chitosan fiber into combed yarn, wherein the yarn count is 80S/1, the twist coefficient is 180, spinning modified bamboo fiber and silver fiber into antibacterial yarn, the yarn count is 50S/1, and the twist coefficient is 90;
S2: mixing combed yarn, antibacterial yarn, polyurethane emulsion, hydroxypropyl methacrylate and flatting agent, stirring for 3 hours at 80 ℃, then fishing out, drying and spinning to obtain fabric; wherein, the mass ratio of combed yarn to antibacterial yarn is 3:1;
The pretreatment process of the silver wire fiber comprises the following steps: adding 1kg of silver silk fiber with the diameter of 0.015-0.025mm into 20L of sodium hydroxide solution, stirring for 3 hours at the temperature of 30 ℃, then sequentially adding 0.5kg of PVP, ethanol and nano silver particles, continuously stirring for 3 hours, and finally washing and drying to obtain pretreated silver silk fiber; wherein the mass ratio of PVP, ethanol and nano silver particles is 1:20:0.06.
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