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CN114525684A - Non-woven fabric containing antibacterial and antiviral substances and mask prepared from non-woven fabric - Google Patents

Non-woven fabric containing antibacterial and antiviral substances and mask prepared from non-woven fabric Download PDF

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Publication number
CN114525684A
CN114525684A CN202210436457.1A CN202210436457A CN114525684A CN 114525684 A CN114525684 A CN 114525684A CN 202210436457 A CN202210436457 A CN 202210436457A CN 114525684 A CN114525684 A CN 114525684A
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antiviral
woven fabric
antibacterial
mask
fabric containing
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Chinese (zh)
Inventor
杨艳艳
楼金善
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Zhongke Youpin Tianjin Technology Development Co ltd
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Zhongke Youpin Tianjin Technology Development Co ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/30—Antimicrobial, e.g. antibacterial
    • A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
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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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • D06M11/42—Oxides or hydroxides of copper, silver or gold
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/47—Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
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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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/48—Oxides or hydroxides of chromium, molybdenum or tungsten; Chromates; Dichromates; Molybdates; Tungstates
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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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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
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    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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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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    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/04—Processes in which the treating agent is applied in the form of a foam
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—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

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  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention belongs to the field of masks, and particularly relates to a non-woven fabric containing antibacterial and antiviral substances and a mask prepared from the non-woven fabric, which are prepared in the following way: s1: opening, opening and carding the fibers to form a net; s2: foam impregnation: using adhesive, sterilization antiviral dispersion liquid and foaming agent to perform foam impregnation and drying; s3: secondary dipping, wherein the secondary dipping is carried out by using an adhesive, and the secondary dipping is finished by drying and winding; according to the invention, through the special processes of foam impregnation and secondary impregnation, the antibacterial and antiviral substance solution and the PET polyester fiber are fully combined through the adhesive in the foam impregnation process, so that the antibacterial and antiviral substance can be fully distributed in a non-woven fabric grid structure, the dispersibility is good, the adhesion is good, and the antibacterial and antiviral effect is stable.

Description

Non-woven fabric containing antibacterial and antiviral substances and mask prepared from non-woven fabric
Technical Field
The invention belongs to the field of masks, and particularly relates to a non-woven fabric containing a sterilizing and antiviral substance and a mask prepared from the non-woven fabric.
Background
Starting from the outbreak of novel coronavirus pneumonia, the mask plays a vital role in aspects of sanitary protection, infection control and the like, and becomes an indispensable medical protective product for the daily life of the public. The demand for masks is increasing, but masks on the market are not uniform. The traditional mask can filter larger dust and droplets in the air inhaled by a human body through the physical isolation effect, but can not well block bacteria and viruses in the air; some masks can adhere viruses and bacteria to the surface by a physical method of electrostatic adsorption of fibers, but cannot kill the bacteria and the viruses. Meanwhile, the disposable mask on the market has high occupancy rate, high use degree, high replacement rate and high abandonment rate, and not only wastes resources but also wastes more wastes when being frequently replaced. Especially, bacteria and viruses infected on the mask worn by a patient with a new crown remain on the mask, and if the treatment is not proper, secondary pollution can be caused.
Therefore, the sterilizing and antiviral mask meets the requirements of the market and the environment of new coronary epidemic situation. An ultraviolet sterilization mask in the chinese patent document CN202010165297, a sterilization component and an ultraviolet sterilization mask in the chinese patent document CN202110228796, but when ultraviolet rays are generated, it will cause a certain harm to human body, for example, oxygen in the air will generate ozone, and cause a bad symptom of dizziness and nausea.
The sterilization mask and the preparation method thereof in the Chinese patent document CN202010870829 practical examination integrate the natural biological characteristics of the acceptor-rich ZnO micron tube and the graphene oxide, and the acceptor-rich ZnO micron tube can be integrated in the mask interlayer and cannot fall off to enter the human body, so that the adsorption capacity of the mask is improved, the mask has a good sterilization effect, and the protection capacity of the mask is improved. This only cuts off the germ transmission path, promotes the adsorption and adhesion of the mask, and does not really kill the bacteria and viruses adhered to the mask.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a non-woven fabric containing a bactericidal and antiviral substance and a mask prepared from the non-woven fabric.
In order to achieve the purpose, the invention adopts the technical scheme that:
a non-woven fabric containing a bactericidal and antiviral substance is prepared by adopting the following method:
s1: opening, opening and carding the fibers to form a net;
s2: foam impregnation: using 20-40% of adhesive, 20-50% of bactericidal and antiviral dispersion and foaming agent to make foam impregnation, drying;
s3: secondary dipping, wherein 60-80% of the total amount of the adhesive is used for dipping in the secondary dipping, and the secondary dipping is finished by drying and winding;
the dosage of each substance is as follows: the fiber 650-730kg/t, the adhesive 610-630kg/t, the bactericidal antiviral dispersion 210-500 kg/t and the foaming agent 15-25 kg/t. The solid content of the adhesive is more than or equal to 48 percent, and the Tg: 30 ℃ below zero to 15 ℃, and a viscosity of 100-.
The adhesive is one or a mixture of styrene-acrylate cross-linked emulsion, pure acrylate emulsion, aqueous polyurethane dispersion and modified corn starch emulsion.
The adhesive is a mixture of modified corn starch emulsion and pure acrylate emulsion or aqueous polyurethane dispersoid, and the mass ratio of the adhesive is as follows: 1:1-1:10.
The antibacterial and antiviral substance is micron-sized and/or nano-sized bismuth trioxide which is used alone or in combination with silver antibacterial agent, copper antibacterial agent, zinc antibacterial agent, titanium antibacterial agent, molybdenum antibacterial agent and tungsten antibacterial agent.
In step S2, the drying temperature is 120-150 ℃; the drying time is as follows: 0.5-10min/m2(ii) a In the step S3, the secondary drying temperature is 180-190 ℃, and the drying time is as follows: 0.5-10min/m2。
In step S2, ultrasonic heating is used in foam impregnation, the heating temperature is 25-70 ℃, the heating power is 4-30KW, the ultrasonic time is 0.5-3h, and the stirring speed is 30-150 r/min.
The fiber is one or mixture of type 1.5D 38MM or type 1.2D 38 MM.
The fiber is a mixture of the model 1.5D 38MM and the model 1.2D 38MM, and the proportion of the model 1.5D 38MM is more than or equal to 50%.
The invention also comprises a mask prepared from the non-woven fabric, wherein the mask comprises an inner layer and an outer layer which are prepared from the non-woven fabric, and melt-blown cloth arranged between the inner layer and the outer layer.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the special processes of foam impregnation and secondary impregnation, the antibacterial and antiviral substance solution and the PET polyester fiber are fully combined through the adhesive in the foam impregnation process, so that the antibacterial and antiviral substance can be fully distributed in a non-woven fabric grid structure, the dispersibility is good, the adhesion is good, and the antibacterial and antiviral effect is stable; and the stiffness of the fiber is improved through secondary dipping, so that the mask is more suitable for use, and meanwhile, the sterilizing and antiviral substances are locked on the surface of the fiber and are not easy to fall off.
Simultaneously, the adhesive has good initial adhesion effect, can release certain combined acting force, enables the sterilization and anti-virus substances to be released, reduces the contact time of the sterilization and anti-virus substances with bacteria and viruses, and can shorten the time for detecting the sterilization capacity of the mask.
Preferably, the adhesive is selected from biological starch adhesive, and has the advantages of high bonding strength, high drying speed, no alkali return, no moisture return and convenient use. The starch adhesive is mixed with other adhesives, so that the sterilizing substance is not only tightly embedded in the fiber, but also not easy to fall off, and the safety is guaranteed; meanwhile, microorganisms adhered to the non-woven fabric can be quickly killed through the characteristic of good rehydration performance under the condition of a certain strong external force.
The type 1.5D 38MM and the type 1.2D 38MM or a mixture are adopted as the fibers in the mask, and the non-woven fabric for the mask is light and thin, small in breathing resistance and light in weight, so that short fibers of the type 1.5D 38MM and the type 1.2D 38MM are selected, and the non-woven fabric has good antistatic property, cohesive property and opening property, and the fibers reach zero defects; the fiber has reasonable breaking strength and elongation under the process conditions and process parameters, and ensures that the cloth cover has good tearing strength and extensibility.
The invention can ensure that the sterilizing and antiviral substances are well, long-acting and stably distributed on the non-woven fabric, not only can cut off the transmission of bacteria and viruses, but also can kill the viruses and microorganisms adhered on the mask, and the mask has no odor and has the function of deodorization after being worn for a long time. It has the function of killing various bacteria and viruses, including gram-negative bacteria, gram-positive bacteria, fungi and viruses, such as staphylococcus aureus with bacteriostasis rate higher than 90%, colibacillus with bacteriostasis rate higher than 90%, influenza virus, HPV, coronavirus, human coronavirus, etc.
The invention provides a mask capable of continuously sterilizing for a long time, and the air permeability is 2300-6343 mm/s; longitudinal elongation > 50N/5 CM; the transverse elongation is more than 5N/5CM, and the thickness (0.16-0.36 MM) + -0.04. The mask can not only adhere and intercept endogenous or exogenous bacteria and viruses, but also effectively kill the bacteria and the viruses adhered to the mask through the inner and outer layers of the sterilization non-woven fabrics. The sterilizing and antiviral mask can effectively kill bacteria and viruses adhered to or intercepted by the mask. Meanwhile, the mask can be long-lasting, the loss of the mask is reduced, the waste of resources is reduced, and the transmission of viruses or bacteria generated when the mask is discarded can be avoided. Through the inside and outside two-layer non-woven fabrics that disinfect (outmost and close skin layer), can effectively kill external bacterium and virus, also can kill the bacterium and the virus of new crown patient's exhalation in gauze mask inside.
The air permeability of the non-woven fabrics at the innermost layer and the outermost layer of the sterilizing and antiviral mask is 2300-6343mm/s, the middle layer with strong resistance is added for melt-spraying, the air resistance is small, and the pressure difference P for gas exchange at the two sides of the mask is not more than 49 Pa.
Drawings
FIG. 1 shows a scanning electron micrograph of a nonwoven fabric (40 g) containing no bismuth trioxide;
FIG. 2 shows a scanning electron micrograph of a bismuth trioxide-containing nonwoven fabric (40 g);
FIG. 3 shows a scanning electron micrograph of a nonwoven fabric (20 g) containing no bismuth trioxide;
FIG. 4 shows a scanning electron micrograph of a nonwoven fabric (20 g) containing bismuth trioxide.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Example (b): a non-woven fabric containing a bactericidal and antiviral substance is prepared by adopting the following method:
s1: opening, opening and carding the fibers to form a net;
s2: foam impregnation: using 20-40% of adhesive, 20-50% of bactericidal and antiviral dispersion and foaming agent to make foam impregnation, drying; the solid content of the adhesive is more than or equal to 48 percent, and the Tg: 30 ℃ below zero to 15 ℃, and a viscosity of 100-. The drying temperature is 120-150 ℃; the drying time is as follows: 0.5-10min/m2；
S3: secondary dipping, wherein 60-80% of the total amount of the adhesive is used for dipping in the secondary dipping, and the secondary dipping is finished by drying and winding; the secondary drying temperature is 180-190 ℃, and the drying time is as follows: 0.5-10min/m2。
Wherein the dosage proportion of each substance is as follows: 750 kg/t of fiber 650-. The blowing agent used in this application was blowing agent F1 in an amount of 21 kg/t. The adhesive is one or a mixture of pure acrylate emulsion, aqueous polyurethane dispersion and modified corn starch emulsion.
The antibacterial and antiviral substance is micron-sized and/or nano-sized bismuth trioxide which is used alone or in combination with silver antibacterial agent, copper antibacterial agent, zinc antibacterial agent, titanium antibacterial agent, molybdenum antibacterial agent and tungsten antibacterial agent.
In step S2, ultrasonic heating is used in foam impregnation, the heating temperature is 25-70 ℃, the heating power is 4-30KW, the ultrasonic time is 0.5-3h, and the stirring speed is 30-150 r/min. The parameters used in this application are: the heating temperature is 45 ℃, the heating power is 24KW, the ultrasonic time is 120min, and the stirring speed is 120 r/min.
The fiber is one or mixture of 1.5D 38MM or 1.2D 38 MM.
Table 1 shows the processing parameters and characteristics of the nonwoven fabric for a durable and stable sterilization mask in different embodiments.
TABLE 1
Figure 673877DEST_PATH_IMAGE001
Figure 643101DEST_PATH_IMAGE002
Table 2 shows the grammage, air filter, thickness, longitudinal strength, transverse strength and the bactericidal effect of escherichia coli (ATCC 8739), staphylococcus aureus ATCC6538, candida albicans ATTCC10231, not according to different examples. And (4) calculating the bacteriostasis rate, and testing according to a WST650-2019 antibacterial and bacteriostasis effect evaluation method.
FIGS. 1-2 show SEM images of a nonwoven fabric (40 g) containing no bismuth trioxide and SEM images of the nonwoven fabric containing no bismuth trioxide in example 16; scanning electron micrographs of a non-woven fabric of bismuth trioxide (40 g); FIGS. 3 to 4 show the SEM images of the non-woven fabric (20 g) containing no bismuth trioxide and the SEM images of the non-woven fabric (20 g) containing bismuth trioxide in example 6, respectively.
TABLE 2
Figure 643418DEST_PATH_IMAGE003
The mask with the functions of lasting sterilization and virus resistance comprises the sterilization and virus resistance outer-layer non-woven fabric for the mask and the sterilization and virus resistance inner-layer non-woven fabric, and the sterilization and virus resistance outer-layer non-woven fabric for the mask has a very good sterilization and virus resistance effect.
The sterilized and antiviral mask nonwoven fabrics of examples 6 and 16 were used for further tests, and the sterilization effect of the mask nonwoven fabrics was evaluated by an official inspection agency. The sample and the control sample are treated for 15min at 121 ℃ by using a standard sterile cotton cloth prepared in a laboratory by adopting a detection method of GB/T20944.2, so that the microbial interference of the control face and the sample per se is reduced. The experiment adopts test strains and codes of escherichia coli 8099, staphylococcus aureus ATCC6538 and candida albicans ATTCC 10231; the concentrations of the corresponding test strains were 1.5X 105CFU/mL for E.coli, 1.1X 105CFU/mL for S.aureus, and 2.5X 105CFU/mL for Candida albicans.
1. Evaluation of official detection mechanism of sterilizing and antiviral non-woven fabric for sterilizing and antiviral mask
1.1 evaluation methods, shown in Table 3.
TABLE 3
Figure 422893DEST_PATH_IMAGE004
1.2 Bactericidal evaluation Effect of the bactericidal and antiviral nonwoven Fabric for bactericidal and antiviral mask (20 g-example 6) measured by the official gazette of 9SHF22010182-04, see Table 4.
TABLE 4
Figure 393123DEST_PATH_IMAGE005
The judgment basis is as follows: when the bacteriostasis value is larger than or equal to 1 or the bacteriostasis rate is larger than or equal to 90 percent, the sample has antibacterial effect, and when the bacteriostasis value is larger than or equal to 2 or the bacteriostasis rate is larger than or equal to 99 percent, the sample has good antibacterial effect.
Evaluation of antibacterial Effect:
the sample has an antibacterial effect (has a good antibacterial effect).
1.3 antibacterial and antiviral nonwoven Fabric for antibacterial and antiviral mask (40 g-example 16) official inspection institute found the result of sterilization evaluation 9SHF22010182-03, see Table 5.
TABLE 5
Figure 482433DEST_PATH_IMAGE006
The judgment basis is as follows: when the bacteriostasis value is larger than or equal to 1 or the bacteriostasis rate is larger than or equal to 90 percent, the sample has antibacterial effect, and when the bacteriostasis value is larger than or equal to 2 or the bacteriostasis rate is larger than or equal to 99 percent, the sample has good antibacterial effect.
Evaluation of antibacterial Effect:
the sample has an antibacterial effect (has a good antibacterial effect).
1.4 official detection mechanism of the bactericidal and antiviral non-woven fabric for the bactericidal and antiviral mask detects aviation virus evaluation results:
1.4.1 human coronavirus HcoV-229E 2021SP14510R01, see Table 6.
TABLE 6
Figure 388072DEST_PATH_IMAGE006
1.4.2 influenza A virus H1N 12021 SP14511R01, see Table 7.
TABLE 7
Figure 923352DEST_PATH_IMAGE007
3. Official detection mechanism evaluation of bactericidal and antiviral mask
The sterilized antiviral nonwoven fabric (40 g-example 16) was used as the outermost nonwoven fabric of the sterilized antiviral mask, the sterilized antiviral nonwoven fabric (20 g-example 6) was used as the inner skin-friendly nonwoven fabric of the sterilized antiviral mask, and the electrostatic adsorption meltblown fabric was selected as the intermediate layer to prepare a finished mask, and the sterilized antiviral test of the finished mask was performed.
2.1 official test organization evaluation of TTS-WT22007603 for sterilizing and antiviral mask
And (3) judging standard: evaluation of antibacterial property of GB/T20944.2-2007 textile
Section 2: absorption method, see table 8.
TABLE 8
Figure 572639DEST_PATH_IMAGE008
2.2 official detection agency evaluation of sterilization of sterilizing antiviral masks
2.2.1 human coronavirus HcoV-229E 2022SP00356R01, see Table 9.
TABLE 9
Figure 375510DEST_PATH_IMAGE008
2.2.2 influenza A virus H1N 12022 SP00355R01, see Table 10.
Watch 10
Figure 452050DEST_PATH_IMAGE009
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A non-woven fabric containing a bactericidal and antiviral substance is characterized by being prepared by the following method:
s1: opening, opening and carding the fibers to form a net;
s2: foam impregnation: using 20-40% of adhesive, 20-50% of bactericidal and antiviral dispersion and foaming agent to make foam impregnation, drying;
s3: secondary dipping, wherein 60-80% of the total amount of the adhesive is used for dipping in the secondary dipping, and the secondary dipping is finished by drying and winding;
wherein the dosage of each substance is as follows: the fiber 650-730kg/t, the adhesive 610-630kg/t, the bactericidal antiviral dispersion 210-500 kg/t and the foaming agent 15-25 kg/t.
2. The nonwoven fabric containing antibacterial and antiviral substances according to claim 1, wherein the binder solid content is not less than 48%, Tg: 30 ℃ below zero to 15 ℃, and a viscosity of 100-.
3. The non-woven fabric containing antibacterial and antiviral substances according to claim 1, wherein the binder is one of styrene-acrylate cross-linked emulsion, pure acrylate emulsion, aqueous polyurethane dispersion, modified corn starch emulsion, or a mixture thereof.
4. The non-woven fabric containing the bactericidal and antiviral substance as claimed in claim 1, wherein the binder is a mixture of a modified corn starch emulsion and a pure acrylate emulsion or an aqueous polyurethane dispersion, and the mass ratio of the modified corn starch emulsion to the pure acrylate emulsion is as follows: 1:1-1:10.
5. The nonwoven fabric containing antibacterial and antiviral substances according to claim 1, wherein said antibacterial and antiviral substances are micro-scale and/or nano-scale bismuth trioxide alone or in combination with silver, copper, zinc, titanium, molybdenum, and tungsten antibacterial agents.
6. The non-woven fabric containing the bactericidal and antiviral substance as set forth in claim 1, wherein the drying temperature is 120-150 ℃ in step S2; the drying time is as follows: 0.5-10min/m2(ii) a In the step S3, the secondary drying temperature is 180-190 ℃, and the drying time is as follows: 0.5-10min/m2。
7. The non-woven fabric containing the antibacterial and antiviral substance according to claim 1, wherein in the step S2, ultrasonic heating is used in foam impregnation, the heating temperature is 25-70 ℃, the heating power is 4-30KW, the ultrasonic time is 0.5-3h, and the stirring speed is 30-150 r/min.
8. The nonwoven fabric containing antibacterial and antiviral substances according to claim 1, wherein said fibers are one or a mixture of type 1.5D 38MM or type 1.2D 38 MM.
9. The method of claim 1, wherein the fiber is a mixture of type 1.5D 38MM and type 1.2D 38MM, and the ratio of type 1.5D 38MM is 50% or more.
10. A nonwoven fabric for use in the manufacture of a mask according to any of claims 1 to 9 wherein said mask comprises an inner and outer layer of said nonwoven fabric and a meltblown disposed between said inner and outer layers.
CN202210436457.1A 2022-04-25 2022-04-25 Non-woven fabric containing antibacterial and antiviral substances and mask prepared from non-woven fabric Pending CN114525684A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115928240A (en) * 2023-02-06 2023-04-07 上海交通大学 Fiber with sterilization and antivirus functions and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103710881A (en) * 2013-12-24 2014-04-09 福建南纺股份有限公司 Anion non-woven fabric and manufacturing method thereof and mask
CN106192429A (en) * 2016-07-14 2016-12-07 新时代健康产业（集团）有限公司 Mask material containing Folium Bambosae flavone and preparation method and application
CN207669907U (en) * 2017-11-07 2018-07-31 世兴达（福建）纺织科技有限公司 A kind of non-woven fabrics for haze
CN114097826A (en) * 2022-01-25 2022-03-01 中科优品(天津)科技发展有限公司 Application of bismuth trioxide as bactericide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103710881A (en) * 2013-12-24 2014-04-09 福建南纺股份有限公司 Anion non-woven fabric and manufacturing method thereof and mask
CN106192429A (en) * 2016-07-14 2016-12-07 新时代健康产业（集团）有限公司 Mask material containing Folium Bambosae flavone and preparation method and application
CN207669907U (en) * 2017-11-07 2018-07-31 世兴达（福建）纺织科技有限公司 A kind of non-woven fabrics for haze
CN114097826A (en) * 2022-01-25 2022-03-01 中科优品(天津)科技发展有限公司 Application of bismuth trioxide as bactericide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115928240A (en) * 2023-02-06 2023-04-07 上海交通大学 Fiber with sterilization and antivirus functions and preparation method and application thereof

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