CN113737519A - Antibacterial and antiviral fabric and preparation method and application thereof - Google Patents
Antibacterial and antiviral fabric and preparation method and application thereof Download PDFInfo
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- CN113737519A CN113737519A CN202111021112.1A CN202111021112A CN113737519A CN 113737519 A CN113737519 A CN 113737519A CN 202111021112 A CN202111021112 A CN 202111021112A CN 113737519 A CN113737519 A CN 113737519A
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- Prior art keywords
- antibacterial
- antiviral
- fabric
- slurry
- polypeptide
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 263
- 230000000840 anti-viral effect Effects 0.000 title claims abstract description 197
- 239000004744 fabric Substances 0.000 title claims abstract description 163
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 76
- 239000002184 metal Substances 0.000 claims abstract description 76
- 239000002002 slurry Substances 0.000 claims abstract description 70
- 239000002070 nanowire Substances 0.000 claims abstract description 69
- 229920001184 polypeptide Polymers 0.000 claims abstract description 55
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- 238000000034 method Methods 0.000 claims abstract description 45
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- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 claims description 4
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Images
Classifications
-
- 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
- D06M11/83—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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- 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
- 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
-
- 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
- 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
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/38—Polyurethanes
Abstract
The application belongs to the technical field of materials, and particularly relates to an antibacterial and antiviral fabric, a preparation method thereof and an antibacterial and antiviral garment. The preparation method of the antibacterial and antiviral fabric comprises the following steps: preparing an antibacterial and antiviral slurry, wherein the antibacterial and antiviral slurry comprises metal nanowires and antibacterial polypeptide; and adding the antibacterial and antiviral slurry in the process of forming the fabric, and drying to obtain the antibacterial and antiviral fabric. The preparation method of the antibacterial and antiviral fabric is simple and efficient to operate, and has the advantages of good antibacterial and antiviral stability, long aging period, small toxic and side effects, good antibacterial and sterilization effects, over 99% of antibacterial rate on escherichia coli, staphylococcus aureus, white streptococcus and the like, and over 96% of antiviral activity on new coronavirus, influenza A virus and the like.
Description
Technical Field
The application belongs to the technical field of materials, and particularly relates to an antibacterial and antiviral fabric, a preparation method thereof and an antibacterial and antiviral garment.
Background
The daily life has the antibacterial and antiviral requirements, and especially the antibacterial and antiviral infection in the centralized areas of patients such as hospitals and the like is important. New coronary pneumonia caused by coronavirus has attracted global attention, and the pathogen was identified as SARS-CoV-2. Since the outbreak of new corona pneumonia in 2019, the method has serious threat to global public health, has radical and profound influence on global life, economy and the like, and has a great importance in controlling/preventing the spread of new corona viruses. At present, the disinfection is mostly carried out in the mode of regular disinfection and sterilization in the susceptible places such as hospitals, and medical personnel can protect themselves from being infected by virus by wearing the mask, protective clothing, gloves, face masks and the like.
However, the medical staff cannot wear the protective device all the time in daily life, and the virus transmission still has the risk of 'transmission of things to people' and then 'transmission of people'. Therefore, there is a need to develop an antibacterial and antiviral fabric, which can be directly used for manufacturing clothes of hospital staff, especially applied to areas with high requirements for antibacterial and antiviral, such as hospitals, etc., to reduce the risk of 'transmission of a substance' of a coronavirus and save the time cost and economic cost of virus management and control.
Disclosure of Invention
The application aims to provide an antibacterial and antiviral fabric, a preparation method thereof and an antibacterial and antiviral garment, and aims to solve the problem that the existing medical staff garment has no antibacterial and antiviral effect and the risk of ' transmission of material and then ' transmission of people ' exists in the transmission of viruses to a certain extent.
In order to achieve the purpose of the application, the technical scheme adopted by the application is as follows:
in a first aspect, the present application provides a method for preparing an antibacterial and antiviral fabric, comprising the steps of:
preparing an antibacterial and antiviral slurry, wherein the antibacterial and antiviral slurry comprises metal nanowires and antibacterial polypeptide;
and adding the antibacterial and antiviral slurry in the process of forming the fabric, and drying to obtain the antibacterial and antiviral fabric.
Further, the step of preparing the antibacterial and antiviral slurry comprises: and mixing the metal nanowire, the antibacterial polypeptide, a dispersing agent, a surfactant, a thickening agent, a coupling agent and a solvent to obtain the antibacterial and antiviral slurry.
Further, the molding process comprises: woven or knitted.
Further, the step of adding the antibacterial and antiviral slurry in the process of forming the fabric comprises the following steps: and soaking the yarns in the antibacterial and antiviral slurry, drying the yarns, and then adopting the tatting weaving or knitting weaving mode to prepare the antibacterial and antiviral fabric.
Further, after the yarns are made into fabrics by adopting the weaving mode or the knitting weaving mode, the fabrics are soaked in the antibacterial and antiviral slurry and dried to obtain the antibacterial and antiviral fabrics.
Further, the diameter of the metal nanowire is 10-100 nm, and the length of the metal nanowire is 1-50 μm.
Further, the metal nanowire includes: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide.
Further, the antimicrobial polypeptide includes PMAP-23.
Further, the material of the yarn comprises: at least one of cotton, wool, silk, terylene and spandex.
Further, the dispersant comprises: one or more of anionic waterborne polyurethane, cationic waterborne polyurethane and non-ionic waterborne polyurethane.
Further, the surfactant includes: one or more of tween 80, sodium dodecyl sulfate, polyethylene glycol, alkyl glycoside, coconut diethanolamide, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, sorbitan monolaurate and polyoxyethylene stearate.
Further, the thickener includes: one or more of ethyl cellulose, methyl cellulose and hydroxyethyl cellulose.
Further, the coupling agent comprises: one or more of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy silane.
Further, the solvent includes: one or more of water, ethanol, methanol, acetone, isopropanol, and dimethyl sulfoxide.
Further, by taking the total mass of the antibacterial and antiviral slurry as 100%, 0.1-1 wt% of antibacterial polypeptide, 0.05-1 wt% of metal nanowire, 0.01-0.5 wt% of polyurethane dispersant, 0.1-1.5 wt% of surfactant, 1-2 wt% of thickener, 0.1-0.5 wt% of coupling agent and the balance of solvent.
In a second aspect, the present application provides an antibacterial and antiviral fabric comprising: a fabric body and an antibacterial and antiviral substance incorporated in the fabric body; the antibacterial and antiviral substance comprises: antibacterial polypeptide and metal nanowire.
Further, the mass ratio of the antibacterial polypeptide to the metal nanowire is (0.1-1): (0.05-1).
Further, the diameter of the metal nanowire is 10-100 nm, and the length of the metal nanowire is 1-50 μm.
Further, the metal nanowire includes: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide.
Further, the antimicrobial polypeptide includes PMAP-23.
Further, the fabric body is selected from: at least one of pure woven fabric, blended fabric and interwoven fabric.
In a third aspect, the application provides an antibacterial and antiviral garment, which is sewn by adopting the antibacterial and antiviral fabric prepared by the method or the antibacterial and antiviral fabric.
The preparation method of the antibacterial and antiviral fabric provided by the first aspect of the application is simple and efficient to operate, the antibacterial and antiviral substances are uniformly distributed in the fabric, the combination is stable, the risk that the antibacterial and antiviral substances fall off in the use process of the fabric is reduced, and the antibacterial stability and the durability of the fabric are improved. And the antibacterial and antiviral activity is more than 96 percent for new coronavirus, influenza A virus and the like, and the antibacterial and antiviral activity is more than 99 percent.
The antibacterial and antiviral fabric provided by the second aspect of the application has the characteristics of good antibacterial and antiviral stability, long time effect, small toxic and side effects, environmental friendliness, good antibacterial and sterilization effects and the like, has a bacteriostatic rate of more than 99% on escherichia coli, staphylococcus aureus, white streptococcus and the like, and has antiviral activity of more than 96% on new coronavirus, influenza a virus and the like.
According to the antibacterial and antiviral clothing provided by the third aspect of the application, as the antibacterial and antiviral fabric is adopted for manufacturing, antibacterial and antiviral substances such as the metal nanowires and the antibacterial polypeptide are uniformly and stably combined in the fabric, the antibacterial and antiviral effects are good and stable, and the aging is long; therefore, the sewed clothes also have high killing and inhibiting effects on bacterial viruses, long time effect, stable effect and small toxic and side effect, the bacteriostasis rate on escherichia coli, staphylococcus aureus, white streptococcus and the like is more than 99%, and the antiviral activity on new corona viruses, influenza A viruses and the like is more than 96%.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a bacteriostasis test chart of the antibacterial and antiviral slurry provided in example 1 of the present application against staphylococcus aureus.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In this application, the term "and/or" describes an association relationship of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (one) of a, b, or c," or "at least one (one) of a, b, and c," may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, and c may be single or plural, respectively.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present application may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present application as long as it is scaled up or down according to the description of the embodiments of the present application. Specifically, the mass in the description of the embodiments of the present application may be in units of mass known in the chemical industry, such as μ g, mg, g, and kg.
The terms "first" and "second" are used for descriptive purposes only and are used for distinguishing purposes such as substances from one another, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In a first aspect, embodiments of the present application provide a method for preparing an antibacterial and antiviral fabric, including the following steps:
s10, preparing antibacterial and antiviral slurry, wherein the antibacterial and antiviral slurry comprises metal nanowires and antibacterial polypeptide;
s20, adding the antibacterial and antiviral slurry in the fabric forming process, and drying to obtain the antibacterial and antiviral fabric.
In the method for preparing an antibacterial and antiviral fabric provided in the first aspect of the embodiment of the present application, after preparing an antibacterial and antiviral slurry containing metal nanowires and antibacterial polypeptides, the antibacterial and antiviral slurry is added in a fabric forming process, so that antibacterial and antiviral substances such as the metal nanowires and the antibacterial polypeptides in the slurry are in-situ combined in the formed fabric, and the antibacterial and antiviral fabric is obtained. The preparation method of the embodiment of the application is simple and efficient to operate, the antibacterial and antiviral substances are uniformly distributed in the fabric, the combination is stable, the risk that the antibacterial and antiviral substances fall off in the use process of the fabric is reduced, and the antibacterial stability and the durability of the fabric are improved. In addition, the antibacterial and antiviral slurry contains metal nanowires and antibacterial polypeptide, wherein the antibacterial polypeptide has dipeptide and tripeptide with small molecular weight and antibacterial activity, has amphipathy, can be perforated on a bacterial cell plasma membrane to form an ion pore channel, causes the damage of a bacterial cell membrane structure to cause a large amount of intracellular water-soluble substances to seep out to cause cell death; meanwhile, the antibacterial polypeptide can kill cells by acting on proteins and nucleic acids in the cells, but has extremely low toxicity to host cells. The metal nanowire not only has larger specific surface area, but also can dissociate metal ions, plays a role in inhibiting escherichia coli, staphylococcus aureus, bacillus subtilis and the like, and has excellent antibacterial performance; and the metal nano-wire has low biological toxicity, and the use safety of the antibacterial and antiviral slurry is improved. In addition, the antibacterial polypeptide can be combined with the metal nanowire, so that the stability of the antibacterial and antiviral slurry is improved. The preparation method of the antibacterial and antiviral fabric provided by the embodiment of the application is simple and efficient to operate, good in antibacterial and antiviral stability, long in aging, small in toxic and side effects, good in antibacterial and sterilization effects, and has an antibacterial rate of more than 99% on escherichia coli, staphylococcus aureus, white streptococcus and the like, and an antiviral activity of more than 996% on new coronavirus, influenza a virus and the like.
In some embodiments, in the step S10, the step of preparing the antibacterial and antiviral slurry includes: and mixing the metal nanowire, the antibacterial polypeptide, a dispersing agent, a surfactant, a thickening agent, a coupling agent and a solvent to obtain the antibacterial and antiviral slurry. According to the embodiment of the application, the metal nanowires, the antibacterial polypeptide, the dispersing agent, the surfactant, the thickening agent, the coupling agent and the solvent are mixed, and the stably dispersed antibacterial and antiviral slurry can be obtained through the combined action of the dispersing agent, the surfactant, the coupling agent, the thickening agent and other auxiliaries.
In some embodiments, the antimicrobial polypeptide comprises PMAP-23, which has the amino acid sequence of seq id no: RIIDLL WRVRRPQKPKFVTVWVR, Arg-Ile-Ile-Asp-Leu-Leu-Trp-Arg-Val-Arg-Arg-Pro-Gln-Lys-Pro-Lys-Phe-Val-Thr-Val-Trp-Val-Arg. The mature peptide PMAP-23 consists of 23 amino acid residues, is in hairpin structure and has G + and G resistance-(gram-negative bacteria). The amphipathic structure and positive charge of the antibacterial polypeptide molecule can make the antibacterial polypeptide molecule perforate on the plasma membrane of a bacterial cell to form an ion channel, so that the structure of the plasma membrane of the bacterial cell is damaged, intracellular water-soluble substances are greatly exuded, and finally the bacterial cell is killed. The unique antibacterial mechanism can not cause the pathogenic microorganism strains to be mutated to generate drug resistance, and has no drug resistance to organismsToxic and side effects.
In some embodiments, the metal nanowires have a diameter of 10 to 100nm and a length of 1 to 50 μm. In the antibacterial and antiviral slurry provided by the embodiment of the application, the contained metal nanowires have large length-diameter ratio, so that the metal nanowires have large active specific surface area, the dissociation of metal ions is facilitated, free metal ions have killing and inhibiting effects on bacteria and viruses, and the antibacterial and antiviral efficiency of the slurry is improved. In addition, the metal nanowire also has excellent light transmission and flexibility resistance, and the application flexibility of the antibacterial and antiviral sizing agent on different fabric substrates is improved. In some embodiments, the metal nanowires may have a diameter of 10-20 nm, 20-50 nm, 50-80 nm, 80-100 nm, etc., and a length of 1-10 μm, 10-20 μm, 20-30 μm, 30-50 μm, etc.
In some embodiments, the metal nanowires include: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide. The metal nanowire in the embodiment of the application can contain simple metal substances such as silver, copper, zinc, titanium and the like, and can also contain metal oxides such as silver oxide, zinc oxide, copper oxide, titanium oxide and the like, and the metal nanowire formed by the materials has excellent light transmittance, flexibility resistance, antibacterial and antiviral properties and the like. The dissociated metal ions in the metal nano-wires have high activity, particularly the silver ions can be combined with tissue protein to bring structural changes to bacterial cell walls and nuclear membranes, so that cells are twisted and killed, and the effects of sterilization and antibiosis are achieved.
In some embodiments, the dispersant comprises: one or more of anionic waterborne polyurethane, cationic waterborne polyurethane and non-ionic waterborne polyurethane. The dispersing agents adopted in the embodiment of the application belong to water-soluble polyurethane dispersing agents, are pollution-free, safe and reliable, have excellent mechanical properties and good compatibility, and can effectively improve the dispersion stability of slurry such as metal nanowires in a solvent.
In some embodiments, the surfactant comprises: one or more of tween 80, sodium dodecyl sulfate, polyethylene glycol, alkyl glycoside, coconut diethanolamide, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, sorbitan monolaurate and polyoxyethylene stearate; the surfactants can obviously reduce the surface tension of inorganic sizing agents such as metal nanowires and the like, and improve the dispersion stability of each component in the antibacterial and antiviral sizing agent, thereby improving the adhesive property of the sizing agent on the surfaces of different yarns and fabrics.
In some embodiments, the thickening agent comprises: one or more of ethyl cellulose, methyl cellulose and hydroxyethyl cellulose; the thickening agents can improve the viscosity of the system of the antibacterial and antiviral slurry, so that the system is kept in a uniform and stable suspension state or an emulsion state, the slurry is favorably adhered to the surfaces of yarns and fabrics made of different materials, and the combination stability of the antibacterial and antiviral slurry and the fabrics is improved.
In some embodiments, the coupling agent comprises: one or more of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy silane; the coupling agents can further improve the dispersion stability of each component in the antibacterial and antiviral sizing agent and improve the combination stability of the sizing agent and the fabric.
In some embodiments, the solvent comprises: the solvents have good dissolving or dispersing performance on antibacterial polypeptide, metal nanowires, a dispersing agent, a surfactant, a thickening agent, a coupling agent and other components, so that the antibacterial and antiviral slurry is stably dispersed, and the construction application performance of the antibacterial and antiviral slurry is improved.
In some embodiments, the antibacterial polypeptide is 0.1-1 wt%, the metal nanowire is 0.01-0.5 wt%, the polyurethane dispersant is 0.01-0.1 wt%, the surfactant is 0.1-1.2 wt%, the thickener is 1-2 wt%, the coupling agent is 0.1-0.5 wt%, and the balance is solvent, wherein the total mass of the antibacterial and antiviral slurry is 100%. In the antibacterial and antiviral slurry provided by the embodiment of the application, the antibacterial and antiviral effects of the slurry are effectively ensured, and the dispersion stability of the slurry and the combination effect of fabrics made of different materials are also ensured. If the content of the antibacterial polypeptide is too low or the content of the metal nanowires is too low, the antibacterial and antiviral effects of the slurry are poor; if the content of the antibacterial polypeptide is too high or the content of the metal nanowire is too high, the combination stability of antibacterial and antiviral components such as the antibacterial polypeptide and the metal nanowire and the fabric is reduced, so that the antibacterial effect of the fabric is reduced, and the cost is high. If the content of the polyurethane dispersant, the surfactant, the thickener, the coupling agent and other auxiliaries is too low, the dispersion stability of the antibacterial and antiviral slurry is reduced; if the content of the auxiliary agent is too high, the proportion of antibacterial components such as antibacterial polypeptide and metal nanowires in the formed slurry is reduced, and antibacterial and antiviral substances combined in the fabric are reduced, so that the antibacterial and antiviral effects of the fabric are reduced.
In some embodiments, in the step S20, the molding process includes: woven or knitted. The weaving by tatting means that yarns cross and penetrate from the longitudinal direction and the transverse direction, the weaving industry is called warp and weft interweaving, and the weaving by tatting is a production process of interweaving by various different weave forms. Specifically, the warp is usually fixed (fixed on the disk head) and continuously operated to release the warp, the weft is placed in the shuttle, the weft is continuously beaten by the beating-up device and passes through different openings of the warp separated by the heald frame to form cloth patterns with different textures, at the moment, the weft is frequently changed in yarn and color, and the warp is fixed and can be woven into plain, twill and satin. In addition, the knitting and weaving refers to a weaving method in which numerous loops are interlaced vertically and horizontally, and each loop is completed by a looping process of a knitting needle, and this production process is called knitting and weaving. That is, a process of forming a fabric by bending yarns into loops and interlooping them with each other using a knitting needle. The knitting and weaving are divided into two main categories according to different knitting principles: warp knitting and weft knitting.
In some embodiments, the step of adding the antibacterial and antiviral size during the fabric forming process comprises: soaking the yarns in the antibacterial and antiviral sizing agent to ensure that antibacterial and antiviral substances such as metal nanowires, antibacterial polypeptide and the like in the antibacterial and antiviral sizing agent are fully attached to the yarns, drying the yarns, and weaving the yarns combined with the antibacterial and antiviral substances into an antibacterial and antiviral fabric in a weaving or knitting mode; so that the metal nano-wires, the antibacterial and antiviral components such as the antibacterial polypeptide and the like are uniformly and stably distributed and combined in the fabric.
In other embodiments, the step of adding the antibacterial and antiviral size during the fabric forming process comprises: the method comprises the steps of preparing the yarn into a fabric by adopting a weaving or knitting weaving mode, soaking the fabric in the antibacterial and antiviral slurry, fully soaking the fabric in the antibacterial and antiviral slurry to enable antibacterial and antiviral components such as metal nanowires and antibacterial polypeptide in the slurry to be fully soaked and combined in the fabric, and drying to obtain the antibacterial and antiviral fabric.
A second aspect of the embodiments of the present application provides an antibacterial and antiviral fabric, comprising: a fabric body and an antibacterial and antiviral substance incorporated in the fabric body; the antibacterial and antiviral substances include: antibacterial polypeptide and metal nanowire.
The antibacterial and antiviral fabric provided by the second aspect of the embodiment of the application comprises a fabric body and antibacterial and antiviral substances such as antibacterial polypeptide and metal nanowires combined in the fabric body, so that the antibacterial and antiviral fabric has the characteristics of good antibacterial and antiviral stability, long time effect, small toxic and side effects, environmental friendliness, good antibacterial and sterilization effects and the like, the bacteriostatic rate of escherichia coli, staphylococcus aureus, white streptococcus and the like is more than 99%, and the antiviral activity of new coronavirus, influenza a virus and the like is more than 96%.
In some embodiments, the antibacterial polypeptide and the metal nanowire are in a mass ratio of (0.1-1): (0.01 to 0.5); the ratio ensures that the antibacterial polypeptide and the metal nanowire have better synergistic antibacterial and antiviral effects, is favorable for combining the antibacterial polypeptide and the metal nanowire and is combined into yarns and fabrics together, and fully ensures the antibacterial and antiviral effects of the fabrics.
In some embodiments, the metal nanowires have a diameter of 10 to 100nm and a length of 1 to 50 μm.
In some embodiments, the metal nanowires include: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide.
In some embodiments, the antimicrobial polypeptide comprises PMAP-23.
The effects of the above embodiments of the present application are discussed in detail in the foregoing, and are not described herein again.
In some embodiments, the fabric body is selected from: at least one of pure woven fabric, blended fabric and interwoven fabric. The fabric body of the embodiment of the application can adopt different fabrics such as pure woven fabric, blended fabric and interwoven fabric. The antibacterial and antiviral slurry is combined into the fabric in the textile process by the method of the embodiment of the application, so that antibacterial and antiviral substances such as metal nanowires and antibacterial polypeptides have good combination stability in different fabrics, and the antibacterial and antiviral effects of the fabric are good and stable.
The third aspect of the embodiment of the application provides an antibacterial and antiviral garment, wherein the antibacterial and antiviral garment is sewn by adopting the antibacterial and antiviral fabric prepared by the method or the antibacterial and antiviral fabric.
The antibacterial and antiviral clothing provided by the third aspect of the embodiment of the application is made of the antibacterial and antiviral fabric, and antibacterial and antiviral substances such as metal nanowires, antibacterial polypeptide and the like are uniformly and stably combined in the fabric, so that the antibacterial and antiviral effect is good and stable, and the aging is long; therefore, the sewed clothes also have high killing and inhibiting effects on bacterial viruses, long time effect, stable effect and small toxic and side effect, the bacteriostasis rate on escherichia coli, staphylococcus aureus, white streptococcus and the like is more than 99%, and the antiviral activity on new corona viruses, influenza A viruses and the like is more than 96%.
In some embodiments, the antibacterial and antiviral clothing includes, but is not limited to, clothing of hospital staff, such as white gowns, surgical gowns, and the like, clothing of transportation staff, clothing of public service staff, such as public catering staff, clothing worn by people in daily life, and the like.
In order to make the above-mentioned implementation details and operations of the present application clearly understood by those skilled in the art and to make the progress of the antibacterial and antiviral fabric and the manufacturing method thereof obvious, the above-mentioned technical solutions are illustrated by the following examples.
Example 1
An antibacterial and antiviral textile fabric is prepared by the following steps:
firstly, preparing antibacterial and antiviral slurry:
weighing 0.1g of silver nanowires, adding the silver nanowires into 50mL of water, uniformly dispersing, continuously adding 0.1g of antibacterial polypeptide PMAP-23, 0.05g of waterborne polyurethane, 0.5g of polyethylene glycol surfactant, 1.5g of ethyl cellulose thickener and 0.15g of epoxy silane coupling agent, finally adding water to the total weight of 100g, and uniformly mixing to obtain the nano metal wire suspension slurry.
Step two, preparing textile cloth:
selecting cotton and terylene as composite raw materials, and mixing the raw materials according to the weight ratio of 7: 3 to prepare the blended fabric.
Step three, preparing the antibacterial and antiviral textile fabric:
the textile cloth is prepared by adopting a dipping mode, a dipping process is added after the printing and dyeing process, so that the textile cloth is dipped in the antibacterial and antiviral slurry for more than 10s, and the antibacterial and antiviral textile cloth is obtained after drying.
Example 2
An antibacterial and antiviral textile fabric is prepared by the following steps:
firstly, preparing antibacterial and antiviral slurry:
weighing 0.5g of copper nanowires, adding the copper nanowires into 50mL of water, uniformly dispersing, continuously adding 0.5g of antibacterial polypeptide PMAP-23, 0.1g of anionic waterborne polyurethane, 1g of sodium dodecyl benzene sulfonate surfactant, 1.5g of ethyl cellulose thickener and 0.3g of vinyl silane coupling agent, finally adding water to the total weight of 100g, and uniformly mixing to obtain the nano metal wire suspension slurry.
Step two, preparing textile cloth:
selecting pure cotton as a fabric raw material.
Step three, preparing the antibacterial and antiviral textile fabric:
the textile cloth is prepared by adopting a dipping mode, a dipping process is added after the printing and dyeing process, so that the textile cloth is dipped in the antibacterial and antiviral slurry for more than 10s, and the antibacterial and antiviral textile cloth is obtained after drying.
Example 3
An antibacterial and antiviral textile fabric is prepared by the following steps:
firstly, preparing antibacterial and antiviral slurry:
weighing 0.5g of copper nanowires and silver nanowires (the mass ratio is 1:1), adding the copper nanowires and the silver nanowires into 50mL of water, uniformly dispersing, continuously adding 0.5g of antibacterial polypeptide PMAP-23, 0.09g of anionic waterborne polyurethane, 0.8g of coconut diethanolamide surfactant, 1.2g of hydroxyethyl cellulose thickener and 0.3g of vinyl silane coupling agent, finally adding water to the total weight of 100g, and uniformly mixing to obtain the nano metal wire suspension slurry.
Step two, preparing textile cloth:
selecting spandex and cotton as composite raw materials, and mixing the raw materials according to the proportion of 1: 9 into cloth.
Step three, preparing the antibacterial and antiviral textile fabric:
the textile cloth is prepared by adopting a dipping mode, a dipping process is added after the printing and dyeing process, so that the textile cloth is dipped in the antibacterial and antiviral slurry for more than 10s, and the antibacterial and antiviral textile cloth is obtained after drying.
Example 4
An antibacterial and antiviral textile fabric is prepared by the following steps:
firstly, preparing antibacterial and antiviral slurry:
weighing 0.3g of silver nanowires, adding the silver nanowires into 50mL of water, uniformly dispersing, continuously adding 1g of antibacterial polypeptide PMAP-23, 0.05g of cationic waterborne polyurethane, 0.5g of sorbitan monolaurate surfactant, 1.2g of methyl cellulose thickener and 0.5g of epoxy silane coupling agent, finally adding water to the total weight of 100g, and uniformly mixing to obtain the nano metal wire suspension slurry.
Step two, preparing textile cloth:
selecting cotton and wool as raw materials, and mixing the raw materials according to the proportion of 7: 3, blending.
Step three, preparing the antibacterial and antiviral textile fabric:
the textile cloth is prepared by adopting a dipping mode, a dipping process is added after the printing and dyeing process, so that the textile cloth is dipped in the antibacterial and antiviral slurry for more than 10s, and the antibacterial and antiviral textile cloth is obtained after drying.
Example 5
An antibacterial and antiviral textile fabric, which is different from example 1 in that: in the second step, after the cotton and the terylene are soaked in the antibacterial and antiviral sizing agent and dried, the weight ratio of the cotton to the terylene is 7: 3, spinning to obtain the antibacterial and antiviral textile fabric.
Example 6
An antibacterial and antiviral textile fabric, which is different from example 1 in that: the amount of silver nanowires added in the first step was 0.6 g.
Example 7
An antibacterial and antiviral textile fabric, which is different from example 1 in that: the addition amount of the antimicrobial polypeptide in the first step is 1.1 g.
Comparative example 1
An antibacterial and antiviral textile fabric, which is different from example 1 in that: in the first step, no antimicrobial polypeptide is added.
Comparative example 2
An antibacterial and antiviral textile fabric, which is different from example 1 in that: silver nanowires were not added in the first step.
Comparative example 3
An antibacterial and antiviral textile fabric, which is different from example 1 in that: in the first step, silver nanowires are replaced by silver nanopowder.
Comparative example 4
An antibacterial and antiviral textile fabric, which is different from example 1 in that: and in the third step, the antibacterial and antiviral slurry is coated on the surface of the textile fabric to obtain the antibacterial and antiviral textile fabric.
Further, in order to verify the advancement of the examples of the present application, the following performance tests were performed for each of the examples and comparative examples:
1. and (3) an antibacterial test, which adopts GB/T20944.2-2007 evaluation part 2 of antibacterial performance of textiles: absorption method (Abort method); the results of the antibacterial test are shown in table 1 below:
in addition, the bacteriostasis experiment of the antibacterial and antiviral slurry in example 1 on staphylococcus aureus is shown in the attached drawing 1, wherein, a figure 1a is a blank culture medium, and a figure 1b is a culture dish coated with the antibacterial and antiviral slurry in example 1. As can be seen from FIG. 1, the antibacterial and antiviral slurry in example 1 of the present application shows an excellent inhibitory effect against Staphylococcus aureus.
TABLE 1
The test results in table 1 show that the antibacterial and antiviral fabric prepared in embodiments 1 to 7 of the present application has excellent antibacterial effects against bacteria such as escherichia coli and staphylococcus aureus. The bacteriostatic rate of the fabric in the embodiments 1-5 is more than 99%, and when the content of the metal nanowires in the embodiment 6 is too high or the addition amount of the antibacterial polypeptide in the embodiment 7 is too high, the antibacterial effect of the fabric is reduced. And when the comparative example 1 does not contain the antibacterial polypeptide and the comparative example 2 does not contain the metal nanowire, the antibacterial effect of the fabric is obviously reduced, which shows that the fabric simultaneously contains two antibacterial components of the antibacterial polypeptide and the metal nanowire, and the antibacterial effect of the fabric can be obviously improved through the synergistic effect of the antibacterial polypeptide and the metal nanowire. In addition, the antibacterial performance of comparative example 3 was also reduced by using the metal nano-powder. And the antibacterial and antiviral size of comparative example 4 forms a coating on the surface of the fabric by coating, and the antibacterial effect and stability are also reduced.
2. Antiviral testing, using ISO 21702: 2019; the antiviral test results are shown in table 2 below:
TABLE 2
The test results in table 2 show that the antibacterial and antiviral fabrics prepared in examples 1 to 7 of the present application have excellent antiviral effects against influenza a virus, new coronavirus and other viruses. The antiviral activity rates of the fabrics in the embodiments 1-5 are all over 96%, and in the embodiments 6 and 7, when the content of the metal nanowires is too high or the addition amount of the antibacterial polypeptide is too high, the antiviral effect of the fabrics is reduced. And when the comparative example 1 does not contain the antibacterial polypeptide and the comparative example 2 does not contain the metal nanowire, the antiviral effect of the fabric is obviously reduced, which shows that the fabric simultaneously contains two antibacterial components of the antibacterial polypeptide and the metal nanowire, and the antiviral effect of the fabric can be obviously improved through the synergistic effect of the antibacterial polypeptide and the metal nanowire. In addition, the antiviral performance of comparative example 3 was also reduced by using the metal nano-powder. In contrast, in comparative example 4, the antibacterial and antiviral slurry forms a coating on the surface of the fabric by coating, and the antiviral effect and stability are also reduced.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The preparation method of the antibacterial and antiviral fabric is characterized by comprising the following steps of:
preparing an antibacterial and antiviral slurry, wherein the antibacterial and antiviral slurry comprises metal nanowires and antibacterial polypeptide;
and adding the antibacterial and antiviral slurry in the process of forming the fabric, and drying to obtain the antibacterial and antiviral fabric.
2. The method for preparing an antibacterial and antiviral fabric according to claim 1, wherein the step of preparing the antibacterial and antiviral slurry comprises: mixing the metal nanowire, the antibacterial polypeptide, a dispersing agent, a surfactant, a thickening agent, a coupling agent and a solvent to obtain the antibacterial and antiviral slurry;
and/or, the molding process comprises: woven or knitted.
3. The method for preparing the antibacterial and antiviral fabric according to claim 2, wherein the step of adding the antibacterial and antiviral slurry during the fabric forming process comprises: soaking the yarns in the antibacterial and antiviral slurry, drying the yarns, and then preparing the antibacterial and antiviral fabric by adopting the tatting weaving or knitting weaving mode;
or, after the yarns are made into fabrics by adopting the tatting weaving mode or the knitting weaving mode, soaking the fabrics in the antibacterial and antiviral slurry, and drying to obtain the antibacterial and antiviral fabric.
4. The method for preparing the antibacterial and antiviral fabric according to claim 3, wherein the metal nanowires have a diameter of 10 to 100nm and a length of 1 to 50 μm;
and/or, the metal nanowire comprises: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide;
and/or, the antimicrobial polypeptide comprises PMAP-23;
and/or, the material of the yarn comprises: at least one of cotton, wool, silk, terylene and spandex.
5. The method for preparing an antibacterial and antiviral fabric according to any one of claims 2 to 4, wherein the dispersant comprises: one or more of anionic waterborne polyurethane, cationic waterborne polyurethane and nonionic waterborne polyurethane;
and/or, the surfactant comprises: one or more of tween 80, sodium dodecyl sulfate, polyethylene glycol, alkyl glycoside, coconut diethanolamide, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, sorbitan monolaurate and polyoxyethylene stearate;
and/or, the thickener comprises: one or more of ethyl cellulose, methyl cellulose and hydroxyethyl cellulose;
and/or, the coupling agent comprises: one or more of vinyl silane, amino silane, epoxy silane, mercapto silane and methacryloxy silane;
and/or, the solvent comprises: one or more of water, ethanol, methanol, acetone and isopropanol.
6. The method for preparing the antibacterial and antiviral fabric according to any one of claims 2 to 4, wherein the antibacterial polypeptide is 0.1 to 1 wt%, the metal nanowire is 0.05 to 1 wt%, the polyurethane dispersant is 0.01 to 0.5 wt%, the surfactant is 0.1 to 1.5 wt%, the thickener is 1 to 2 wt%, the coupling agent is 0.1 to 0.5 wt%, and the balance is solvent, based on 100% of the total mass of the antibacterial and antiviral slurry.
7. An antibacterial and antiviral fabric, characterized in that it comprises: a fabric body and an antibacterial and antiviral substance incorporated in the fabric body; the antibacterial and antiviral substance comprises: antibacterial polypeptide and metal nanowire.
8. The antibacterial and antiviral fabric according to claim 7, wherein the mass ratio of the antibacterial polypeptide to the metal nanowires is (0.1-1): (0.05-1);
and/or the diameter of the metal nanowire is 10-100 nm, and the length of the metal nanowire is 1-50 mu m;
and/or, the metal nanowire comprises: at least one of silver, silver oxide, copper oxide, zinc oxide, titanium, and titanium oxide;
and/or, the antimicrobial polypeptide comprises PMAP-23.
9. The antibacterial and antiviral fabric according to claim 7 or 8, wherein said fabric body is selected from the group consisting of: at least one of pure woven fabric, blended fabric and interwoven fabric.
10. An antibacterial and antiviral garment, characterized in that the antibacterial and antiviral garment is sewn by adopting the antibacterial and antiviral fabric prepared by the method as claimed in any one of claims 1 to 6 or the antibacterial and antiviral fabric as claimed in any one of claims 7 to 9.
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| CN111455493A (en) * | 2020-04-23 | 2020-07-28 | 红玫软装饰(杭州)有限公司 | Antibacterial and antiviral fabric and preparation method and application thereof |
| CN212246345U (en) * | 2019-11-29 | 2020-12-29 | 安徽宸智物联科技有限公司 | Silver nanowire nylon net |
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2021
- 2021-09-01 CN CN202111021112.1A patent/CN113737519A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080193496A1 (en) * | 2005-03-21 | 2008-08-14 | The Cupron Corporation | Antimicrobial And Antiviral Polymeric Master Batch, Processes For Producing Polymeric Material Therefrom And Products Produced Therefrom |
| CN212246345U (en) * | 2019-11-29 | 2020-12-29 | 安徽宸智物联科技有限公司 | Silver nanowire nylon net |
| CN111455493A (en) * | 2020-04-23 | 2020-07-28 | 红玫软装饰(杭州)有限公司 | Antibacterial and antiviral fabric and preparation method and application thereof |
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