CN113005779A - In-situ nano-silver-loaded antibacterial non-woven fabric, preparation method thereof and application thereof in disposable sanitary products - Google Patents
In-situ nano-silver-loaded antibacterial non-woven fabric, preparation method thereof and application thereof in disposable sanitary products Download PDFInfo
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
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- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/024—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530131—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium being made in fibre but being not pulp
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Abstract
The application relates to the field of manufacturing of non-woven disposable sanitary products (masks, paper diapers, sanitary towels and the like), in particular to an in-situ nano-silver-loaded antibacterial non-woven fabric, a preparation method thereof and application thereof in disposable sanitary products. An MHBP-OH hyperbranched polymer for grafting modification of non-woven fabrics is prepared from an amino-terminated hyperbranched polymer and polyethylene glycol methacrylate. The nano silver is generated by controlling the grafting modification of the MHBP-OH hyperbranched polymer on the non-woven fabric in situ, so that the non-woven fabric is endowed with excellent long-acting antibacterial property and washing resistance, the functionalization of cotton textiles is realized, and the added value can be greatly increased.
Description
Technical Field
The application relates to the field of manufacturing of non-woven disposable sanitary products (masks, paper diapers, sanitary towels and the like), in particular to an in-situ nano-silver-loaded antibacterial non-woven fabric, a preparation method thereof and application thereof in disposable sanitary products.
Background
The ES (PE/PP) hot-air non-woven fabric has the characteristics of PP and PE non-woven fabrics, has good hand feeling, softness, permeability and small back-seepage quantity, and is a good choice when being used for covering high-grade sanitary products. PE and PP are nonpolar polymers, no hydrophilic group exists in molecules, the crystallinity is high, and the ES hot air non-woven fabric prepared from the PE and PP has poor hydrophilicity and is not easy to permeate liquid, so that hydrophilic finishing is required to be carried out on the ES non-woven fabric.
The ES hot-air non-woven fabric is used for sanitary articles, and has an important index of its antibacterial property2) And polyethylene glycol methacrylate (PEGM) and silver nitrate are subjected to a complexing reaction to form a nano-silver aqueous solution with a core-shell structure, and the nano-silver aqueous solution can be efficiently grafted on the nonwoven fabric treated by clear water, so that the long-acting durable washable antibacterial nonwoven fabric is achieved.
For example, the Chinese invention patent (publication number: CN103214637A) is a hyperbranched polymer nano sustained-release material and a preparation method thereof, the hyperbranched polymer nano sustained-release material comprises the following raw materials: monomer A (white polyethylene glycol methacrylate, polyethylene glycol acrylate, acrylic acid or methacrylic acid), monomer B (butyl methacrylate), bifunctional crosslinking agent, chain transfer agent and initiator. Firstly, obtaining a hyperbranched polymer through reversible addition chain transfer radical polymerization (RAFT); subsequently adding methanol into the hyperbranched polymer, and preparing a methanol dispersion liquid of the polymer nanoparticles through heating and cooling processes; then obtaining the aqueous dispersion of the polymer nano particles through aqueous phase dialysis.
The hyperbranched polymer nanometer slow-release material can be obtained by the method, but the method has the defects of various chemical reagents and complex reaction. If the hyperbranched polymer can be synthesized by the amino-terminated hyperbranched polymer and the polyethylene glycol methacrylate according to a certain molar ratio to obtain the hyperbranched polymer, the hyperbranched polymer can be grafted and modified on the non-woven fabric, and is impregnated with a silver nitrate solution to generate a complex reaction to fix the antibacterial component on the fabric, so that the method has the advantages of simple operation and wide application range, and can also be widely suitable for the industrial production needs.
Disclosure of Invention
In order to solve the above technical problems, an object of the present application is to provide a method for preparing an MHBP-OH hyperbranched polymer, wherein the MHBP-OH hyperbranched polymer can be grafted and modified on a non-woven fabric, so that the non-woven fabric can be controlled to generate a nano silver solution in situ, and the method has the advantages of simple operation and wide application range.
In order to achieve the above object, the present application adopts the following technical solutions:
an MHBP-OH hyperbranched polymer for grafting modification of non-woven fabrics is prepared from an amino-terminated hyperbranched polymer and polyethylene glycol methacrylate.
The structural formula of the amino-terminated hyperbranched polymer is as follows:
the structural formula of the polyethylene glycol methacrylate is as follows:
the n is 1-20.
Preferably, the amino-terminated hyperbranched polymer and the polyethylene glycol methacrylate are prepared by mixing according to the molar ratio of 1: 1-6.
Preferably, the Mn of the MHBP-OH hyperbranched polymer is 1984-2680 g/mol.
Further, the application discloses a preparation method of the MHBP-OH hyperbranched polymer, the method comprises the steps of mixing and dissolving the amino-terminated hyperbranched polymer and polyethylene glycol methacrylate into a certain amount of methanol solution, magnetically stirring for 12-24 hours at room temperature, magnetically stirring for 12-24 hours at 50 ℃, and adding a certain amount of methanol solution into the mixed solution for dilution; and then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
Further, the application discloses application of the MHBP-OH hyperbranched polymer in-situ control of the generation of nano-silver in a non-woven fabric.
Furthermore, the application discloses an in-situ nano-silver-loaded antibacterial non-woven fabric, which adopts the MHBP-OH hyperbranched polymer to generate nano-silver on the surface of the non-woven fabric in an in-situ control manner.
Further, the present application discloses a method for preparing a nonwoven fabric, comprising the steps of:
1) immersing the non-woven fabric in 1-6g/L MHBP-OH solution, wherein the volume ratio of the bath is 1: 50-65, staying at 40-85 deg.C for 30-90min, and placing the fabric on a small padder at a speed of 1-4kg/cm2Rolling off the redundant solution under the pressure of the pressure, and carrying out heat treatment in an oven at the temperature of 30-60 ℃ for 30-90min to obtain the MHBP-OH grafted non-woven fabric;
2) AgNO with the preparation concentration of 0.0085-0.17 g/L3Solution, impregnating the grafted nonwoven with AgNO3Soaking the fabric for 1h at 15-40 ℃ in a bath volume ratio of 1:50-55, taking out the fabric, steaming and heating for 5-30 min at 100 ℃ and relative humidity of 100, rinsing with clear water for three times, and drying at 30-60 ℃.
Preferably, the method comprises a non-woven fabric surface pretreatment step and a finishing step, wherein in the non-woven fabric surface pretreatment step, the ES non-woven fabric is washed by an aqueous solution containing 10-22g/L of sodium carbonate at 90-100 ℃ for 50-100min at a bath ratio of 1:50-60, and dried at room temperature until the water content is 0.3% -1.2%; the finishing step is to immerse the ES non-woven fabric obtained by surface pretreatment into finishing treatment liquid at a bath ratio of 1:100-105, heat the ES non-woven fabric for 1-2h at 70-95 ℃, and then cure the ES non-woven fabric for 10-18min at 120-145 ℃.
Preferably, one or more of surfactants of sodium octaalkylsulfonate, sodium decaalkylsulfonate, sodium tetradecylsulfonate, sodium hexadecylsulfonate, sodium laurate, magnesium stearate, active quaternary ammonium salt, acrylamide, dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide and didecyl trimethyl ammonium bromide are dissolved in 500ml of distilled water to prepare hydrophilic finishing liquid, wherein the concentration of the surfactant in the finishing liquid is 5-15%; adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:20-25 to obtain the final finishing liquid.
Further, the application discloses an antibacterial disposable sanitary product, and the surface layer of the disposable sanitary product adopts the antibacterial non-woven fabric.
Further, the application discloses an antibacterial paper diaper, and the surface layer of the antibacterial paper diaper adopts the antibacterial non-woven fabric.
The application has the following advantages: 1. the ES non-woven fabric is subjected to hydrophilization treatment, so that the hydrophilicity and the liquid permeability of the ES non-woven fabric are effectively improved, and the subsequent finishing process is facilitated. 2. The invention grafts the MHBP-OH hyperbranched polymer on the non-woven fabric to form a firmly combined covalent bond. 3. The method utilizes the fabric grafted with MHBP-OH to generate nano silver in an in-situ control manner, so that the ES non-woven fabric has high-efficiency and long-lasting antibacterial effect. 4. The invention utilizes clear water treatment and nano-silver grafting modification to ensure that the non-woven fabric has excellent moisture absorption, air permeability and antibacterial property. 6. The nano silver is generated by controlling the non-woven fabric grafted with MHBP-OH in situ, so that the non-woven fabric has excellent long-acting antibacterial property and washing resistance, the functionalization of cotton textiles is realized, and the added value can be greatly increased.
Drawings
FIG. 1 is an SEM image of nanosilver produced from a nonwoven grafted with MHBP-OH.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Firstly, raw material sources are as follows:
II, a test method:
the first water penetration time test method refers to GB/T24218.13;
the test of the return moisture content refers to the GB/T24218.14 standard test;
the pretreatment of the non-woven fabric is carried out according to a sample washing method specified in the standard GB/T20944.3-2008;
the antibacterial performance test of the non-woven fabric refers to GB/T20944.3-2008 < evaluation of antibacterial performance of textiles part 3: shaking method, selecting Escherichia coli and Staphylococcus aureus as test strains;
the washing fastness test of the antibacterial non-woven fabric refers to a washing method of GB/T20944.3-2008 'evaluation of antibacterial performance of textiles part 3: oscillation method', the washing times are 0, 10 and 20 times, and the content of the nano silver on the washed fabric is measured.
Example 1:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 1%. Surfactant octaalkylsulfonate (8HS), decaalkyltrimethylammonium bromide, magnesium stearate and acrylamide are dissolved in distilled water of 500ml according to the ratio of 1:1:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. Adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:20 to obtain a treatment liquid. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:105, heated at 70 ℃ for 1h, and then cured at 120 ℃ for 10 min.
Hyperbranched amino-terminated polymer (HBP-NH)2) Mixing with polyethylene glycol methacrylate (PEGM) at a molar ratio of 1:1, dissolving in a certain amount of methanol solution, magnetically stirring at room temperature for 12h, magnetically stirring at 50 deg.C for 12h, and adding a certain amount of methanol solution into the mixed solution for dilution. And then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
Immersing the non-woven fabric after the first impregnation and solidification in 1g/L MHBP-OH solution at a bath ratio of 1: 65 atStaying at 40 deg.C for 30min, and placing the fabric on a small padder at a speed of 1kg/cm2The excess solution was rolled off and heat treated in an oven at 45 ℃ for 90min to obtain the MHBP-OH grafted nonwoven.
AgNO with concentration of 0.00853Solution of equal mass of grafted non-woven fabric impregnated with AgNO3Soaking the fabric at 15 deg.C for 1 hr in a bath ratio of 1:50, steaming at 100 deg.C and relative humidity of 100 deg.C for 10min, rinsing with clear water for three times, and oven drying at 30 deg.C.
Example 2:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 0.8%. Surfactant dodecyl trimethyl ammonium bromide, sodium laurate (12C), acrylamide and active quaternary ammonium salt are dissolved in 500ml of distilled water according to the proportion of 1:1:2:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. Adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:20 to obtain a treatment liquid. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:100, heated at 80 ℃ for 1.5h, and then cured at 130 ℃ for 15 min.
Hyperbranched amino-terminated polymer (HBP-NH)2) Mixing with polyethylene glycol methacrylate (PEGM) at a molar ratio of 1:1, dissolving in a certain amount of methanol solution, magnetically stirring at room temperature for 18h, magnetically stirring at 50 deg.C for 18h, and adding a certain amount of methanol solution into the mixed solution for dilution. And then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
Immersing the non-woven fabric after the first impregnation and solidification in 2g/L MHBP-OH solution at a bath ratio of 1: 60, staying at 40 ℃ for 60min, and then placing the fabric on a small padder at a speed of 2kg/cm2The excess solution was rolled off and heat treated in an oven at 55 ℃ for 90min to obtain the MHBP-OH grafted nonwoven.
AgNO with preparation concentration of 0.0103Solution of equal mass of grafted non-woven fabric impregnated with AgNO3Solutions ofSoaking at 30 deg.C for 1 hr at a bath ratio of 1:50, taking out, steaming at 100 deg.C and relative humidity of 100 deg.C for 20min, rinsing with clear water for three times, and oven drying at 45 deg.C.
Example 3:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 0.5%. Surfactant dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide, didecyl trimethyl ammonium bromide, sodium laurate (12C) and active quaternary ammonium salt are dissolved in distilled water of 500ml according to the proportion of 1:1:1:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. Adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:25 to obtain a treatment liquid. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:100, heated at 80 ℃ for 2 hours, and then cured at 140 ℃ for 10 min.
Hyperbranched amino-terminated polymer (HBP-NH)2) Mixing with polyethylene glycol methacrylate (PEGM) at a molar ratio of 1:1.5, dissolving in a certain amount of methanol solution, magnetically stirring at room temperature for 24h, magnetically stirring at 50 deg.C for 24h, and adding a certain amount of methanol solution into the mixed solution for dilution. And then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
Immersing the non-woven fabric after the first impregnation and solidification in 4g/L MHBP-OH solution at a bath ratio of 1: 60, staying at 60 ℃ for 90min, and then placing the fabric on a small padder at the speed of 3kg/cm2The excess solution was rolled off and heat treated in an oven at 55 ℃ for 90min to obtain the MHBP-OH grafted nonwoven.
AgNO with preparation concentration of 0.0153Solution of equal mass of grafted non-woven fabric impregnated with AgNO3Soaking the fabric at 30 deg.C for 1 hr in a solution at a bath ratio of 1:55, steaming at 100 deg.C and relative humidity of 100 deg.C for 230min, rinsing with clear water for three times, and oven drying at 45 deg.C.
Comparative example 1:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 1%. Surfactant octa-alkyl sodium sulfonate (8HS), magnesium stearate and acrylamide are dissolved in 500ml of distilled water according to the ratio of 1:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:105, heated at 70 ℃ for 1h, and then cured at 120 ℃ for 10 min.
Hyperbranched amino-terminated polymer (HBP-NH)2) Mixing with polyethylene glycol methacrylate (PEGM) at a molar ratio of 1:1, dissolving in a certain amount of methanol solution, magnetically stirring at room temperature for 18h, magnetically stirring at 50 deg.C for 18h, and adding a certain amount of methanol solution into the mixed solution for dilution. And then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
Immersing the non-woven fabric after the first impregnation and solidification in 2g/L MHBP-OH solution at a bath ratio of 1: 60, staying at 40 ℃ for 60min, and then placing the fabric on a small padder at a speed of 2kg/cm2The excess solution was rolled off and heat treated in an oven at 55 ℃ for 90min to obtain the MHBP-OH grafted nonwoven.
Comparative example 2:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 0.8%. Surfactant dodecyl trimethyl ammonium bromide, sodium laurate (12C), acrylamide and active quaternary ammonium salt are dissolved in 500ml of distilled water according to the ratio of 1:2:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. Adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:20 to obtain a treatment liquid. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:100, heated at 80 ℃ for 1.5h, and then cured at 130 ℃ for 15 min.
AgNO with preparation concentration of 0.0103Solution of equal mass of nonwoven fabric impregnated with AgNO3Soaking in solution at bath ratio of 1:50 at 30 deg.C for 1 hr, taking out, steaming at 100 deg.C and relative humidity of 100 deg.C for 20min, rinsing with clear waterAfter three times, drying at 45 ℃.
Comparative example 3:
the ES nonwoven fabric was washed with 10g/L aqueous sodium carbonate solution at 95 ℃ for 50min at a bath ratio of 1:50, and dried at room temperature to a water content of 0.5%. Surfactant dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide, didecyl trimethyl ammonium bromide, sodium laurate (12C) and active quaternary ammonium salt are dissolved in distilled water of 500ml according to the proportion of 1:1:1:1:1 to prepare hydrophilic finishing liquid, and the concentration of the surfactant in the finishing liquid is 5%. Adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:25 to obtain a treatment liquid. The resulting ES nonwoven fabric was immersed in the finishing liquid at a bath ratio of 1:100, heated at 80 ℃ for 2 hours, and then cured at 140 ℃ for 10 min.
Hyperbranched amino-terminated polymer (HBP-NH)2) Dissolving in a certain amount of methanol solution, magnetically stirring at room temperature for 18h, magnetically stirring at 50 deg.C for 18h, and adding a certain amount of methanol solution into the mixed solution for dilution. And then removing the methanol by rotary evaporation and pressurization to obtain the hyperbranched polymer.
Immersing the non-woven fabric after the first impregnation and solidification in HBP-NH of 2g/L2In the solution, the bath ratio is 1: 60, staying at 40 ℃ for 60min, and then placing the fabric on a small padder at a speed of 2kg/cm2Rolling off the excess solution, and performing heat treatment in an oven at 55 deg.C for 90min to obtain HBP-NH2A grafted nonwoven fabric.
AgNO with preparation concentration of 0.0103Solution of equal mass of grafted non-woven fabric impregnated with AgNO3Soaking the fabric at 30 deg.C for 1 hr in a solution at a bath ratio of 1:50, steaming at 100 deg.C and relative humidity of 100 deg.C for 20min, rinsing with clear water for three times, and oven drying at 45 deg.C.
Preparation method and performance index of antibacterial non-woven fabric
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including any reference to the above-mentioned embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The MHBP-OH hyperbranched polymer for grafting modification of the non-woven fabric is characterized in that the polymer is prepared from an amino-terminated hyperbranched polymer and polyethylene glycol methacrylate;
the structural formula of the amino-terminated hyperbranched polymer is as follows:
the structural formula of the polyethylene glycol methacrylate is as follows:
the n is 1-20.
2. The MHBP-OH hyperbranched polymer for graft modification of non-woven fabrics according to claim 1, which is characterized in that the MHBP-OH hyperbranched polymer is prepared by mixing an amino-terminated hyperbranched polymer and polyethylene glycol methacrylate according to a molar ratio of 1: 1-6; the Mn =1984-2680g/mol of the MHBP-OH hyperbranched polymer.
3. The method for preparing MHBP-OH hyperbranched polymer according to claim 1 or 2, wherein the method comprises the steps of mixing and dissolving the amino-terminated hyperbranched polymer and polyethylene glycol methacrylate in a certain amount of methanol solution, magnetically stirring at room temperature for 12-24h, magnetically stirring at 50 ℃ for 12-24h, and adding a certain amount of methanol solution into the mixed solution for dilution; and then removing the methanol by rotary evaporation and pressurization to obtain the MHBP-OH hyperbranched polymer.
4. Use of the MHBP-OH hyperbranched polymer of claim 1 or 2 for the in situ controlled production of nanosilver in a nonwoven fabric.
5. An in-situ nano-silver-loaded antibacterial non-woven fabric, which is characterized in that the MHBP-OH hyperbranched polymer of claim 1 or 2 is adopted to generate nano-silver on the surface of the non-woven fabric in an in-situ control manner.
6. A method of making the nonwoven fabric of claim 5, comprising the steps of:
1) immersing the non-woven fabric in 1-6g/L MHBP-OH solution, wherein the volume ratio of the bath is 1: 50-65, staying at 40-85 deg.C for 30-90min, and placing the fabric on a small padder at a speed of 1-4kg/cm2Rolling off the redundant solution under the pressure of the pressure, and carrying out heat treatment in an oven at the temperature of 30-60 ℃ for 30-90min to obtain the MHBP-OH grafted non-woven fabric;
2) AgNO with the preparation concentration of 0.0085-0.17 g/L3Solution, impregnating the grafted nonwoven with AgNO3Soaking the fabric for 1h at 15-40 ℃ with the bath volume ratio of 1:50-55, taking out the fabric, steaming and heating for 5-30 min at the temperature of 100 ℃ and the relative humidity of 100, rinsing with clear water for three times, and drying at 30-60 ℃.
7. The preparation method according to claim 6, characterized in that the method comprises a non-woven fabric surface pretreatment step and a finishing step, wherein the non-woven fabric surface pretreatment step comprises the steps of washing the ES non-woven fabric at a bath ratio of 1:50-60 for 50-100min at 90-100 ℃ with an aqueous solution containing 10-22g/L of sodium carbonate, and drying at room temperature until the water content is 0.3% -1.2%; the finishing step is to immerse the ES non-woven fabric obtained by surface pretreatment into finishing treatment liquid at a bath ratio of 1:100-105, heat the ES non-woven fabric for 1-2h at 70-95 ℃, and then cure the ES non-woven fabric for 10-18min at 120-145 ℃.
8. The method according to claim 7, wherein the hydrophilic finishing liquid is prepared by dissolving one or more of octaalkylsulfonate, decaalkylsulfonate, tetradecylsulfonate, hexadecylsulfonate, sodium laurate, magnesium stearate, quaternary ammonium salt, acrylamide, decaalkyltrimethylammonium bromide, dodecyltrimethylammonium bromide, hexadecyltrimethylammonium bromide and didecyltrimethylammonium bromide, which are surfactants, in 500ml of distilled water, wherein the surfactant concentration in the finishing liquid is 5-15%; adding a Feikoslite cross-linking agent into the obtained hydrophilic finishing liquid according to the solid-liquid ratio of 1:20-25 to obtain the final finishing liquid.
9. An antibacterial disposable sanitary article characterized in that the antibacterial nonwoven fabric according to claim 5 is used as a surface layer of the disposable sanitary article.
10. An antibacterial paper diaper, characterized in that the surface layer of the antibacterial paper diaper adopts the antibacterial non-woven fabric of claim 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010795110.7A CN113005779A (en) | 2020-08-10 | 2020-08-10 | In-situ nano-silver-loaded antibacterial non-woven fabric, preparation method thereof and application thereof in disposable sanitary products |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445314A (en) * | 2021-06-23 | 2021-09-28 | 武汉纺织大学 | Catechol/aminated cationic polyelectrolyte modified antibacterial non-woven fabric and preparation method thereof |
| CN114346252A (en) * | 2021-12-30 | 2022-04-15 | 南通大学 | Nano silver colloidal solution, preparation method thereof and washing-resistant antibacterial antiviral fabric |
-
2020
- 2020-08-10 CN CN202010795110.7A patent/CN113005779A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445314A (en) * | 2021-06-23 | 2021-09-28 | 武汉纺织大学 | Catechol/aminated cationic polyelectrolyte modified antibacterial non-woven fabric and preparation method thereof |
| CN113445314B (en) * | 2021-06-23 | 2022-08-05 | 武汉纺织大学 | Catechol/aminated cationic polyelectrolyte modified antibacterial non-woven fabric and preparation method thereof |
| CN114346252A (en) * | 2021-12-30 | 2022-04-15 | 南通大学 | Nano silver colloidal solution, preparation method thereof and washing-resistant antibacterial antiviral fabric |
| CN114346252B (en) * | 2021-12-30 | 2023-12-01 | 南通大学 | Nano silver colloid solution, preparation method thereof and washing-resistant antibacterial antiviral fabric |
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