CN110774680A - Antibacterial fabric with high skin affinity and preparation method thereof - Google Patents
Antibacterial fabric with high skin affinity and preparation method thereof Download PDFInfo
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- CN110774680A CN110774680A CN201911076820.8A CN201911076820A CN110774680A CN 110774680 A CN110774680 A CN 110774680A CN 201911076820 A CN201911076820 A CN 201911076820A CN 110774680 A CN110774680 A CN 110774680A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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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
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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
- D06M11/77—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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- 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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- 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
- D06M13/10—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 oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/123—Polyaldehydes; Polyketones
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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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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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
- D06M15/15—Proteins 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/08—Animal fibres, e.g. hair, wool, silk
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
- B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2437/00—Clothing
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- 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
- D06M2101/06—Vegetal fibres cellulosic
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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
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
Abstract
The invention discloses a bacteriostatic fabric with high skin affinity and a preparation method thereof, wherein the bacteriostatic fabric comprises a modified base fabric and a waterproof layer laid on the modified base fabric, the modified base fabric is obtained by taking modified antibacterial fibers as raw materials and carrying out textile molding, and the waterproof layer is processed and prepared by uniform mixture of the modified waterproof fibers and hot-melt fibers; the modified base fabric has good skin-friendly performance and antibacterial performance, and the waterproof layer is laid on the modified base fabric after being formed by the air-laid technology, so that the modified base fabric is formed by taking the skin-friendly fabric as a raw material and modifying the surface water.
Description
Technical Field
The invention belongs to the technical field of textiles, and particularly relates to a bacteriostatic fabric with high skin affinity and a preparation method thereof.
Background
Along with the rapid development of the society, people pay more and more attention to the improvement of the quality of life, wherein the clothes are used as products directly contacting with the human body, in order to ensure the comfort of the clothes, the fabric should have good skin-friendly performance, in the prior art, the fabric with good skin-friendly performance mainly comprises animal fibers such as silk fibers and wool fibers or plant fibers such as cotton fibers and hemp fibers, and the fibers all have good skin-friendly performance, but in the using process, especially the animal fibers contain a large amount of protein components, and after the fibers absorb moisture, if the fibers are not dried in time, the fibers are rotten due to bacteria breeding, so that the strength of the fabric is reduced, the skin-friendly performance is poor, and peculiar smell can be generated, so that the normal use of the fabric is influenced.
In the prior art, in order to avoid that the skin-friendly fabric absorbs water for a long time and is in a wet state, the prior art often adopts a mode of processing after mixing cotton fibers and other hydrophobic chemical fibers to reduce the water absorption performance of the fabric and improve the strength of the fabric, but on one hand, the skin-friendly effect of the fabric is reduced, and on the other hand, the problem that the fabric is easy to breed bacteria cannot be fundamentally solved, so that a scheme for improving the antibacterial and bacteriostatic effects of the fabric on the premise of not influencing the skin-friendly performance of the fabric is needed, and in order to solve the problem, the invention provides the following technical scheme.
Disclosure of Invention
The invention aims to provide a bacteriostatic fabric with high skin affinity and a preparation method thereof.
The technical problems to be solved by the invention are as follows:
in prior art, in order to promote the comfort level of clothing, many next to shin clothing all adopt close skin fibre to make, but because close skin fibre has good water absorption effect, when using for a long time, can absorb water body surface and outside moisture, lead to close skin fibre to be in long-time moist state, consequently breed the bacterium easily, thereby cause the injury to fibre itself and press close to fibrous human skin, and adopt close skin fibre and chemical fibre blending's mode although can reduce the speed that the surface fabric bred the bacterium to a certain extent, but also obviously reduced the close skin nature and the gas permeability of surface fabric, therefore not a good solution.
The purpose of the invention can be realized by the following technical scheme:
a bacteriostatic fabric with high skin affinity comprises a modified base fabric and a waterproof layer laid on the modified base fabric, wherein the modified base fabric is obtained by taking modified antibacterial fibers as raw materials through textile molding, the waterproof layer is processed by a uniform mixture of the modified waterproof fibers and hot-melt fibers, the weight ratio of the modified waterproof fibers to the hot-melt fibers is 1-4.2:1, the fiber length of the modified waterproof fibers is 3-15mm, and the fiber length of the hot-melt fibers is 8-45 mm;
the modified antibacterial fiber is obtained by modifying one or a mixture of at least two of cotton fiber, hemp fiber and wool fiber;
the modified waterproof fiber is obtained by modifying one or a mixture of at least two of cotton fiber, hemp fiber and wool fiber;
a preparation method of a bacteriostatic fabric with high skin affinity comprises the following steps:
step one, taking modified antibacterial fibers as raw materials, obtaining a modified base fabric through a textile process, cutting off fluff on at least one surface of the modified base fabric, and avoiding the influence of long fluff on subsequent processes, wherein the fluff refers to fibers or fiber bundles which are not completely woven into spinning or partially separated from spinning in subsequent processing
Step two, uniformly mixing the modified waterproof fibers and the hot-melt fibers according to a weight ratio, and condensing the mixed fibers on a net forming curtain through an air-laid technology to form a fine wool layer, wherein the fine wool layer is a layer of structure which is formed by uniformly laying the mixed fibers and has uniform thickness, and the fine wool layer formed on the net forming curtain is laid on one surface of the modified base fabric;
and step three, rolling through a rolling structure, compacting the fine velvet layer to prevent fibers from being blown away in the hot air flow heating process, then heating the fine velvet layer through hot air flow to soften the hot-melt fibers to achieve the bonding effect, and rolling through the rolling structure again after cooling to obtain the finished antibacterial fabric with high skin-friendly property.
The preparation method of the modified antibacterial fiber comprises the following steps:
s11, adding the raw material fiber into deionized water, heating at 60-75 ℃ for 30-60min, then washing with deionized water, draining water, drying for later use, and removing impurities on the surface of the fiber;
s12, preparing a sericin solution with the mass concentration of 0.5-3%, adding an epoxy silane coupling agent, stirring and dispersing uniformly, adding the raw material fiber obtained by the previous step, carrying out ultrasonic treatment for 5-10min, standing for 1-3min, taking out, draining, carrying out heating treatment on the raw material for 30-120min by using hot steam with the temperature of 100-110 ℃, washing with deionized water after the heating reaction, and drying for later use;
in this step, epoxy in the epoxy silane coupling agent can react with hydroxyl, carboxyl and amino, consequently plays the cross-linking effect, fixes sericin on fibrous surface, and the fibre surface covers simultaneously has silane coupling agent and sericin, has reduced the roughness on fibre surface to avoid fibrous entanglement each other, promoted the dispersion effect of the fibrous of entrying.
S13, preparing a glutaraldehyde solution with the volume concentration of 0.5% -2%, heating to 25-35 ℃, adding the raw material fiber obtained by the previous step into the glutaraldehyde solution, carrying out ultrasonic treatment for 5-10min, standing for reaction for 2-24h, taking out, drying, and obtaining the antibacterial modified fiber.
In the step, sericin is fixed by glutaraldehyde, so that the water solubility of sericin is reduced, and meanwhile, omega-amino groups on side chains of amino acid residues in sericin act with glutaraldehyde, so that the sterilization and bacteriostasis effects of sericin can be improved.
As a further aspect of the present invention, the preparation method of the sericin solution comprises:
SS1, soaking sericin in water to absorb water, performing vacuum freeze drying to obtain sericin powder, adding water to rehydrate the sericin powder, and performing freeze drying again to obtain sericin powder with a porous structure;
SS2, adding the sericin powder obtained in the previous step into a silver nitrate solution with the concentration of 4-20g/L, soaking for 6-10min at normal temperature, processing in a stirring or ultrasonic mode during the soaking process, irradiating by ultraviolet light after the soaking is finished, filtering and washing sericin with deionized water after the silver nitrate solution turns black, and removing unfixed nano silver on the surface of the sericin and the silver nitrate solution;
and SS3, adding sericin into deionized water, and uniformly stirring or ultrasonically dispersing to obtain a sericin solution.
In the step, firstly, sericin is subjected to cyclic freeze drying to form a porous structure under the condition of not damaging the properties of sericin, then the sericin is added into a silver nitrate solution for soaking, and the formed nano silver is uniformly attached to pore channels and the surface of the sericin through ultraviolet irradiation reduction, so that the sterilization and bacteriostasis capabilities of the sericin are improved.
The preparation method of the modified waterproof fiber comprises the following steps:
s21, uniformly mixing ethanol and water according to the volume ratio of 1:1-3, adding graphene oxide, stirring or ultrasonically treating to uniformly disperse the graphene oxide to obtain a graphene oxide dispersion liquid for later use, wherein the mass concentration of the graphene oxide in the graphene oxide dispersion liquid is 1-6.5 g/L;
s22, adding a reducing agent into the graphene oxide dispersion liquid, heating the mixture in a water bath to 65-95 ℃, and reacting for 0.5-1h to obtain the reduced graphene oxide dispersion liquid;
s23, adding a silane coupling agent into the reduced graphene oxide dispersion liquid obtained by the previous step, heating the mixture in a water bath to 60-80 ℃, reacting for 24-48h, filtering, washing graphene with absolute ethyl alcohol, adding the obtained graphene material into the absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a modified graphene dispersion liquid, wherein the weight percentage of the modified graphene in the modified graphene dispersion liquid is 15% -30%;
s24, mixing ethanol and water according to the volume ratio of 7-10: 1, after uniform mixing, adding tetraethyl orthosilicate, adjusting the rotating speed to 2400-;
preferably, the silane coupling agent used in step S22 is aminopropyltrimethoxysilane;
s25, uniformly mixing the modified graphene dispersion liquid obtained in the step S23 and the silicon dioxide sol obtained in the step S24 according to the volume ratio of 1:7-20 to obtain a treatment liquid for later use;
s26, adding the raw material fiber into the treatment liquid obtained in the previous step, after the raw material fiber is soaked, raising the temperature to 30-60 ℃, carrying out heating treatment for 10-60min, taking out the raw material fiber, carrying out heating treatment on the raw material through hot steam at the temperature of 100-110 ℃, removing ethanol components in the raw material fiber, continuously providing conditions for the reaction, and then drying the raw material fiber to obtain the modified waterproof fiber.
In this step, modified graphene and silica particles can be combined with fibers through a silane coupling agent, and graphene can be used as a substrate between the modified graphene and the silica particles, and a composite material with silica particles is attached to the modified graphene and the silica particles, so that the combination effect of the silica particles and the fiber surface can be improved, and meanwhile, the silica particles and the modified graphene are combined on the fiber surface, so that an interface structure with good hydrophobicity can be formed, thereby achieving a good hydrophobic effect.
The invention has the beneficial effects that:
1. the bacteriostatic fabric with high skin-affinity comprises a modified base fabric and a waterproof layer laid on the modified base fabric, wherein the modified base fabric is obtained by taking modified antibacterial fibers as raw materials through textile forming and has good skin-affinity and antibacterial properties, and the waterproof layer is laid on the modified base fabric after being formed through an air-laid technology, so that the modified base fabric is formed by taking the skin-affinity fabric as a raw material and modifying through surface water.
2. In the preparation process of the modified antibacterial fiber, fibers with good skin-friendly effect, such as cotton fibers, hemp fibers, wool fibers and the like, are used as raw materials, sericin is subjected to cyclic freeze drying to form a porous structure under the condition of not damaging the properties of the sericin, then the sericin is added into a silver nitrate solution for soaking, and is reduced by ultraviolet irradiation to ensure that formed nano silver is uniformly attached to pore channels and surfaces of the sericin, so that the sterilization and bacteriostasis capability of the sericin is improved, then the sericin solution is prepared by the sericin, a raw material fiber is added into the solution for heating reaction after an epoxy silane coupling agent is added into the solution, an epoxy group in the epoxy silane coupling agent can react with a hydroxyl group, a carboxyl group and an amino group in the reaction process, so that the crosslinking effect is achieved, and the sericin is fixed on the surface of the fibers, meanwhile, the surface of the fiber is covered with the silane coupling agent and the sericin, so that the roughness of the surface of the fiber is reduced, the mutual entanglement of the fiber is avoided, the dispersion effect of the fiber entering water is improved, the sericin is fixed through glutaraldehyde, the water solubility of the sericin is reduced, meanwhile, the omega-amino group on the side chain of the amino acid residue in the sericin acts with glutaraldehyde, the sterilization and bacteriostasis effects of the sericin can be improved, the sericin which is subjected to modification treatment and has a good sterilization and bacteriostasis effect is fixed on the surface of the fiber, the skin affinity of the fabric is not influenced, and the antibacterial performance of the fabric is also improved.
3. Modified waterproof fiber is in the preparation in-process, treat raw and other materials fibre with the mixed solution of graphite alkene and silica sol as the steeping liquor, it is specific, modified graphite alkene and silica particle all can be through silane coupling agent and fibre combination, can form between modified graphite alkene and the silica particle simultaneously and use graphite alkene as the base, the combined material who has silica particle adheres to, can promote silica particle and fibrous surface's bonding effect, silica particle and modified graphite alkene combine on fibrous surface simultaneously, can form the interface structure who has good hydrophobicity, thereby play good hydrophobic effect.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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
The bacteriostatic fabric with high skin affinity comprises a modified base fabric and a waterproof layer laid on the modified base fabric, wherein the modified base fabric is obtained by taking modified antibacterial fibers as raw materials through textile molding, the waterproof layer is processed by a uniform mixture of the modified waterproof fibers and hot-melt fibers, the weight ratio of the modified waterproof fibers to the hot-melt fibers is 4:1, the fiber length of the modified waterproof fibers is 3-5mm, and the fiber length of the hot-melt fibers is 8-13 mm;
the modified antibacterial fiber is obtained by modifying wool fiber serving as a raw material;
the modified waterproof fiber is obtained by modifying wool fiber serving as a raw material;
a preparation method of a bacteriostatic fabric with high skin affinity comprises the following steps:
step one, taking modified antibacterial fibers as raw materials, obtaining a modified base fabric through a textile process, and cutting off fluff on one surface of the modified base fabric, wherein the fluff refers to fibers or fiber bundles which are not completely woven into spinning or partially separated from the spinning in subsequent processing;
step two, uniformly mixing the modified waterproof fibers and the hot-melt fibers according to a weight ratio, and condensing the mixed fibers on a net forming curtain through an air-laid technology to form a fine wool layer, wherein the fine wool layer is a layer of structure which is formed by uniformly laying the mixed fibers and has uniform thickness, and the fine wool layer formed on the net forming curtain is laid on one surface of the modified base fabric;
and step three, rolling through a rolling structure, compacting the fine velvet layer to prevent fibers from being blown away in the hot air flow heating process, then heating the fine velvet layer through hot air flow to soften the hot-melt fibers to achieve the bonding effect, and rolling through the rolling structure again after cooling to obtain the finished antibacterial fabric with high skin-friendly property.
The preparation method of the modified antibacterial fiber comprises the following steps:
s11, adding the raw material fiber into deionized water, heating at 65 ℃ for 30min, then washing with deionized water, draining water, drying for later use, and removing impurities on the surface of the fiber;
s12, preparing a sericin solution with the mass concentration of 2%, adding an epoxy silane coupling agent, stirring and dispersing uniformly, adding the raw material fiber obtained by the previous step, carrying out ultrasonic treatment for 5min, standing for 2min, taking out, draining, carrying out heating treatment on the raw material for 60min by using hot steam with the temperature of 105-110 ℃, washing with deionized water after the heating reaction, and drying for later use;
s13, preparing a glutaraldehyde solution with the volume concentration of 1.5%, heating the glutaraldehyde solution to 25-35 ℃, adding the raw material fiber obtained in the previous step into the glutaraldehyde solution, carrying out ultrasonic treatment for 5min, then standing for reaction for 8h, taking out, drying and drying to obtain the antibacterial modified fiber.
As a further aspect of the present invention, the preparation method of the sericin solution comprises:
SS1, soaking sericin in water to absorb water, performing vacuum freeze drying to obtain sericin powder, adding water to rehydrate the sericin powder, and performing freeze drying again to obtain sericin powder with a porous structure;
SS2, adding the sericin powder obtained in the previous step into a silver nitrate solution with the concentration of 6g/L, soaking for 10min at normal temperature, processing in a stirring or ultrasonic mode in the soaking process, irradiating by ultraviolet light after soaking is finished, filtering and washing sericin with deionized water after the silver nitrate solution is changed into black, and removing unfixed nano silver on the surface of the sericin and the silver nitrate solution;
and SS3, adding sericin into deionized water, and uniformly stirring or ultrasonically dispersing to obtain a sericin solution.
The preparation method of the modified waterproof fiber comprises the following steps:
s21, uniformly mixing ethanol and water according to a volume ratio of 1:3, adding graphene oxide into the mixture, and performing ultrasonic treatment for 15min to uniformly disperse the graphene oxide to obtain a graphene oxide dispersion liquid for later use, wherein the mass concentration of the graphene oxide in the graphene oxide dispersion liquid is 3 g/L;
s22, adding hydrazine hydrate into the graphene oxide dispersion liquid, heating the mixture in a water bath to 75 ℃, and reacting for 1 hour to obtain the dispersion liquid of the reduced graphene oxide;
s23, adding aminopropyl trimethoxy silane into the reduced graphene oxide dispersion liquid obtained by the previous step, heating in a water bath to 70 ℃, reacting for 36 hours, filtering, washing graphene with absolute ethyl alcohol, adding the obtained graphene material into the absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a modified graphene dispersion liquid, wherein the weight percentage of the modified graphene in the modified graphene dispersion liquid is 25%;
s24, mixing ethanol and water according to the volume ratio of 7: 1, uniformly mixing, adding tetraethyl orthosilicate, adjusting the rotating speed to 3000r/min, stirring and dispersing for 30min, adding a silane coupling agent, adjusting the rotating speed to 3000r/min, and stirring and reacting for 40min to obtain silicon dioxide sol, wherein the mass ratio of the alcohol-water mixed solution to the tetraethoxysilane is 100: 4;
s25, uniformly mixing the modified graphene dispersion liquid obtained in the step S23 and the silicon dioxide sol obtained in the step S24 according to the volume ratio of 1:14 to obtain a treatment liquid for later use;
s26, adding the raw material fiber into the treatment liquid obtained in the previous step, after the raw material fiber is soaked, raising the temperature to 60 ℃, carrying out heating treatment for 30min, taking out the raw material fiber, carrying out heating treatment on the raw material through hot steam at the temperature of 105-110 ℃, removing ethanol components in the raw material fiber, continuously providing conditions for reaction, and then drying and drying the raw material fiber to obtain the modified waterproof fiber.
Example 2
The bacteriostatic fabric with high skin affinity comprises a modified base fabric and a waterproof layer laid on the modified base fabric, wherein the modified base fabric is obtained by taking modified antibacterial fibers as raw materials through textile molding, the waterproof layer is processed by a uniform mixture of the modified waterproof fibers and hot-melt fibers, the weight ratio of the modified waterproof fibers to the hot-melt fibers is 2.5:1, the fiber length of the modified waterproof fibers is 5-12mm, and the fiber length of the hot-melt fibers is 15-20 mm;
the modified antibacterial fiber is obtained by modifying cotton fiber serving as a raw material;
the modified waterproof fiber is obtained by modifying wool fiber serving as a raw material;
a preparation method of a bacteriostatic fabric with high skin affinity comprises the following steps:
step one, taking modified antibacterial fibers as raw materials, obtaining a modified base fabric through a textile process, and cutting off fluff on one surface of the modified base fabric, wherein the fluff refers to fibers or fiber bundles which are not completely woven into spinning or partially separated from the spinning in subsequent processing;
step two, uniformly mixing the modified waterproof fibers and the hot-melt fibers according to a weight ratio, and condensing the mixed fibers on a net forming curtain through an air-laid technology to form a fine wool layer, wherein the fine wool layer is a layer of structure which is formed by uniformly laying the mixed fibers and has uniform thickness, and the fine wool layer formed on the net forming curtain is laid on one surface of the modified base fabric;
and step three, rolling through a rolling structure, compacting the fine velvet layer to prevent fibers from being blown away in the hot air flow heating process, then heating the fine velvet layer through hot air flow to soften the hot-melt fibers to achieve the bonding effect, and rolling through the rolling structure again after cooling to obtain the finished antibacterial fabric with high skin-friendly property.
The preparation method of the modified antibacterial fiber comprises the following steps:
s11, adding the raw material fiber into deionized water, heating at 65 ℃ for 30min, then washing with deionized water, draining water, drying for later use, and removing impurities on the surface of the fiber;
s12, preparing a sericin solution with the mass concentration of 2.5%, adding an epoxy silane coupling agent, stirring and dispersing uniformly, adding the raw material fiber obtained by the previous step, carrying out ultrasonic treatment for 5min, standing for 3min, taking out, draining, carrying out heating treatment on the raw material for 60min by using hot steam with the temperature of 105-110 ℃, washing with deionized water after the heating reaction, and drying for later use;
s13, preparing a glutaraldehyde solution with the volume concentration of 2%, heating the glutaraldehyde solution to 35 ℃, adding the raw material fiber obtained in the previous step into the glutaraldehyde solution, carrying out ultrasonic treatment for 10min, standing for reaction for 6h, taking out, drying and drying to obtain the antibacterial modified fiber.
As a further aspect of the present invention, the preparation method of the sericin solution comprises:
SS1, soaking sericin in water to absorb water, performing vacuum freeze drying to obtain sericin powder, adding water to rehydrate the sericin powder, and performing freeze drying again to obtain sericin powder with a porous structure;
SS2, adding the sericin powder obtained in the previous step into a silver nitrate solution with the concentration of 16g/L, soaking for 10min at normal temperature, processing in a stirring or ultrasonic mode in the soaking process, irradiating by ultraviolet light after soaking is finished, filtering and washing sericin with deionized water after the silver nitrate solution is changed into black, and removing unfixed nano silver on the surface of the sericin and the silver nitrate solution;
and SS3, adding sericin into deionized water, and uniformly stirring or ultrasonically dispersing to obtain a sericin solution.
The preparation method of the modified waterproof fiber comprises the following steps:
s21, uniformly mixing ethanol and water according to the volume ratio of 1:1, adding graphene oxide into the mixture, stirring or ultrasonically treating the mixture to uniformly disperse the graphene oxide to obtain graphene oxide dispersion liquid for later use, wherein the mass concentration of the graphene oxide in the graphene oxide dispersion liquid is 5 g/L;
s22, adding a reducing agent into the graphene oxide dispersion liquid, heating the mixture in a water bath to 75 ℃, and reacting for 1 hour to obtain the reduced graphene oxide dispersion liquid;
s23, adding aminopropyl trimethoxy silane into the reduced graphene oxide dispersion liquid obtained by the previous step, heating in a water bath to 80 ℃, reacting for 24 hours, filtering, washing graphene with absolute ethyl alcohol, adding the obtained graphene material into the absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a modified graphene dispersion liquid, wherein the weight percentage of modified graphene in the modified graphene dispersion liquid is 25%;
s24, mixing ethanol and water according to the volume ratio of 8: 1, uniformly mixing, adding tetraethyl orthosilicate, adjusting the rotating speed to 3000r/min, stirring and dispersing for 30min, adding a silane coupling agent, adjusting the rotating speed to 3000r/min, and stirring and reacting for 40min to obtain silicon dioxide sol, wherein the mass ratio of the alcohol-water mixed solution to the tetraethoxysilane is 100: 5;
s25, uniformly mixing the modified graphene dispersion liquid obtained in the step S23 and the silicon dioxide sol obtained in the step S24 according to the volume ratio of 1:10 to obtain a treatment liquid for later use;
s26, adding the raw material fiber into the treatment liquid obtained in the previous step, after the raw material fiber is soaked, raising the temperature to 60 ℃, carrying out heating treatment for 20min, taking out the raw material fiber, carrying out heating treatment on the raw material through hot steam at the temperature of 105-110 ℃, removing ethanol components in the raw material fiber, continuously providing conditions for reaction, and then drying the raw material fiber to obtain the modified waterproof fiber.
Comparative example 1
Comparative example 1 and comparative example 1 are different in that a modified base fabric was prepared using wool fibers as a raw material without modification.
Comparative example 2
Comparative example 1 and comparative example 2 are different in that the modified water-repellent fiber of example 1 is replaced with a wool fiber which is not modified under the same conditions.
Comparative example 3
Comparative example 1 and comparative example 3 are different in that the modified antibacterial fiber of example 1 is replaced with a mixed fiber of wool fiber and polyester fiber at a weight ratio of 2:1, and other conditions are the same.
Experiment and result analysis
In examples 1 to 3, the moisture permeability (GB9994-2008), the touch and the antibacterial performance (GB/T20944.3-2008) of the fabric are tested, and the specific results are shown in Table 1:
TABLE 1
The results in table 1 show that the high-skin-friendly antibacterial fabric has a good antibacterial effect on escherichia coli and candida albicans, the fabric has good touch and is close to the skin, and meanwhile, the fabric also has good moisture permeability, so that the situation that the fabric is close to the skin and is not hot is avoided, and the comfort level of the fabric is improved.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (6)
1. The antibacterial fabric with high skin affinity is characterized by comprising a modified base fabric and a waterproof layer laid on the modified base fabric, wherein the modified base fabric is obtained by taking modified antibacterial fibers as raw materials through textile forming, the waterproof layer is processed by a uniform mixture of the modified waterproof fibers and hot-melt fibers, the weight ratio of the modified waterproof fibers to the hot-melt fibers in the waterproof layer is 1-4.2:1, the fiber length of the modified waterproof fibers is 3-15mm, and the fiber length of the hot-melt fibers is 8-45 mm;
the preparation method of the modified antibacterial fiber comprises the following steps:
s11, adding the raw material fiber into deionized water, heating at 60-75 ℃ for 30-60min, washing with deionized water, and drying for later use;
s12, preparing a sericin solution with the mass concentration of 0.5-3%, adding an epoxy silane coupling agent, stirring and dispersing uniformly, adding the raw material fiber obtained by the previous step, carrying out ultrasonic treatment for 5-10min, standing for 1-3min, taking out, draining, carrying out heating treatment on the raw material for 30-120min by using hot steam with the temperature of 100-110 ℃, washing with deionized water after the heating reaction, and drying for later use;
s13, preparing a glutaraldehyde solution with the volume concentration of 0.5% -2%, heating to 25-35 ℃, adding the raw material fiber obtained by the previous step into the glutaraldehyde solution, carrying out ultrasonic treatment for 5-10min, standing for reaction for 2-24h, taking out, drying, and obtaining the antibacterial modified fiber.
2. A preparation method of a bacteriostatic fabric with high skin affinity is characterized by comprising the following steps:
step one, taking modified antibacterial fibers as raw materials, obtaining a modified base fabric through a textile process, and cutting off fluff on at least one surface of the modified base fabric, wherein the fluff refers to fibers or fiber bundles which are not completely woven into spinning or partially separated from the spinning in subsequent processing;
step two, uniformly mixing the modified waterproof fibers and the hot-melt fibers according to a weight ratio, and condensing the mixed fibers on a net forming curtain through an air-laid technology to form a fine wool layer, wherein the fine wool layer is a layer of structure which is formed by uniformly laying the mixed fibers and has uniform thickness, and the fine wool layer formed on the net forming curtain is laid on one surface of the modified base fabric;
and step three, rolling through a rolling structure, compacting the fine velvet layer to prevent fibers from being blown away in the hot air flow heating process, then heating the fine velvet layer through hot air flow to soften the hot-melt fibers to achieve the bonding effect, and rolling through the rolling structure again after cooling to obtain the finished antibacterial fabric with high skin-friendly property.
3. The bacteriostatic fabric with high skin-friendly property according to claim 1, wherein the modified antibacterial fiber is obtained by modifying one or a mixture of at least two of cotton fiber, hemp fiber and wool fiber.
4. The bacteriostatic fabric with high skin-friendly property according to claim 1, wherein the modified waterproof fibers are obtained by modifying one or a mixture of at least two of cotton fibers, hemp fibers and wool fibers.
5. The bacteriostatic fabric with high skin-friendly property according to claim 1, wherein the preparation method of the sericin solution comprises the following steps:
SS1, soaking sericin in water to absorb water, performing vacuum freeze drying to obtain sericin powder, adding water to rehydrate the sericin powder, and performing freeze drying again to obtain sericin powder with a porous structure;
SS2, adding the sericin powder obtained in the previous step into a silver nitrate solution with the concentration of 4-20g/L, soaking for 6-10min at normal temperature, processing in a stirring or ultrasonic mode during the soaking process, irradiating by ultraviolet light after the soaking is finished, filtering and washing sericin with deionized water after the silver nitrate solution turns black, and removing unfixed nano silver on the surface of the sericin and the silver nitrate solution;
and SS3, adding sericin into deionized water, and uniformly stirring or ultrasonically dispersing to obtain a sericin solution.
6. The bacteriostatic fabric with high skin-friendly property according to claim 1, wherein the preparation method of the modified waterproof fiber comprises the following steps:
s21, uniformly mixing ethanol and water according to the volume ratio of 1:1-3, adding graphene oxide into the mixture, stirring or ultrasonically treating the mixture to uniformly disperse the graphene oxide to obtain graphene oxide dispersion liquid for later use, wherein the mass concentration of the graphene oxide in the graphene oxide dispersion liquid is 1-6.5 g/L;
s22, adding a reducing agent into the graphene oxide dispersion liquid, heating the mixture in a water bath to 65-95 ℃, and reacting for 0.5-1h to obtain the reduced graphene oxide dispersion liquid;
s23, adding a silane coupling agent into the reduced graphene oxide dispersion liquid obtained by the previous step, heating the mixture in a water bath to 60-80 ℃, reacting for 24-48h, filtering, washing graphene with absolute ethyl alcohol, adding the obtained graphene material into the absolute ethyl alcohol, and performing ultrasonic dispersion to obtain a modified graphene dispersion liquid, wherein the weight percentage of the modified graphene in the modified graphene dispersion liquid is 15% -30%;
s24, mixing ethanol and water according to the volume ratio of 7-10: 1, after uniform mixing, adding tetraethyl orthosilicate, adjusting the rotating speed to 2400-;
preferably, the silane coupling agent used in step S22 is aminopropyltrimethoxysilane;
s25, uniformly mixing the modified graphene dispersion liquid obtained in the step S23 and the silicon dioxide sol obtained in the step S24 according to the volume ratio of 1:7-20 to obtain a treatment liquid for later use;
s26, adding the raw material fiber into the treatment liquid obtained in the previous step, after the raw material fiber is soaked, raising the temperature to 30-60 ℃, carrying out heating treatment for 10-60min, taking out the raw material fiber, carrying out heating treatment on the raw material through hot steam at the temperature of 100-110 ℃, and then drying the raw material fiber to obtain the modified waterproof fiber.
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