CN112647293A - Efficient and lasting antibacterial fabric and preparation method thereof - Google Patents

Efficient and lasting antibacterial fabric and preparation method thereof Download PDF

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CN112647293A
CN112647293A CN202011552978.0A CN202011552978A CN112647293A CN 112647293 A CN112647293 A CN 112647293A CN 202011552978 A CN202011552978 A CN 202011552978A CN 112647293 A CN112647293 A CN 112647293A
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antibacterial
chitosan
preparation
cotton fabric
efficient
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张秀勤
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Linquan Beirami Home Textile Co Ltd
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Linquan Beirami Home Textile Co Ltd
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01Treating 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
    • D06M15/03Polysaccharides or derivatives thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating 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
    • D06M11/07Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
    • D06M11/30Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/192Polycarboxylic acids; Anhydrides, halides or salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/356Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
    • D06M15/3562Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing nitrogen
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02Natural fibres, other than mineral fibres
    • D06M2101/04Vegetal fibres
    • D06M2101/06Vegetal fibres cellulosic

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microbiology (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention provides an efficient and durable antibacterial fabric and a preparation method thereof, wherein the preparation method comprises the following steps: padding the cotton fabric with chitosan finishing liquid to obtain the cotton fabric with chitosan coated on the surface; padding the cotton fabric coated with chitosan on the surface with halamine antibacterial finishing liquid, and chlorinating to obtain the efficient and lasting antibacterial fabric; here, the halamine antibacterial finishing liquid includes a halamine precursor, which is a copolymer of azlactone and allyl dimethylhydantoin. The efficient and durable antibacterial fabric and the preparation method thereof have the advantages of simple process operation and low energy consumption, and the prepared antibacterial fabric has efficient and durable antibacterial performance and wearability.

Description

Efficient and lasting antibacterial fabric and preparation method thereof
Technical Field
The invention relates to the technical field of textile processing, in particular to an efficient and durable antibacterial fabric and a preparation method thereof.
Background
Natural fibers (cotton, hemp, silk, wool, etc.) are among the most used textile materials. The cotton textile industry plays an important role in the national economic development process, and the production capacity of cotton yarn reaches 50 percent of the world in recent years. The cotton textile has the characteristics of softness, air permeability, moisture absorption, good wearing comfort and the like, and is popular with people. However, some pathogenic bacteria are easy to breed rapidly on the surface of cotton textiles to form bacterial plaques or microbial films, so that diseases or disease infection is caused in a certain range, and the usability and the aesthetic degree of the cotton fabrics are greatly influenced. Therefore, the modification around the antibacterial function becomes the key for improving the wide usability of natural fibers such as cotton textiles and the like.
The halamine compound is a novel antibacterial agent, and has the characteristics of lasting antibacterial effect, reproducible antibacterial function, safety to human bodies and low toxicity. Haloamines are substances containing amine, amide or imide groups which, after hypochlorite action, kill microorganisms such as bacteria. These compounds all contain N-X (X is a halogen) bond, X is generally Cl, and N-Cl is stable and slow to release, thus prolonging the antibacterial time. And when N-Cl is converted into N-H, the N-Cl can be converted into an N-Cl structure through the secondary action of sodium hypochlorite, and the antibacterial performance is obtained again.
Considering the antibacterial property of the antibacterial agent and its binding ability with the fiber is a key factor in determining whether it can be widely used. The traditional finishing method of the halamine antibacterial product is roll baking, the fabric needs to be baked at high temperature, and a cross-linking agent or an initiator is added to be grafted to the cotton fabric in a chemical bond mode, so that the cost of raw materials is increased. In view of this, the research of the low-energy-consumption finishing process and the antibacterial functional textile with excellent and durable sterilization performance has very important significance.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the efficient and durable antibacterial fabric and the preparation method thereof, the process operation is simple, the energy consumption is low, and the prepared antibacterial fabric has efficient and durable antibacterial performance and wearability.
The invention provides a preparation method of an efficient and durable antibacterial fabric, which comprises the following steps:
s1, padding the cotton fabric with the chitosan finishing liquid to obtain the cotton fabric with the chitosan coated on the surface;
s2, padding the cotton fabric coated with chitosan on the surface with halamine antibacterial finishing liquid, and chlorinating to obtain the efficient and lasting antibacterial fabric;
here, the halamine antibacterial finishing liquid includes a halamine precursor which is a copolymer of vinyl azlactone and allyl dimethylhydantoin.
Preferably, the chitosan finishing liquid comprises the following components in percentage by weight: 2-5 wt% of chitosan, 1-5 wt% of BTCA, 1-5 wt% of sodium hypophosphite and the balance of water.
Preferably, the process conditions for padding the chitosan finishing liquid comprise: the bath ratio is 1:20-40, the temperature is 60-70 ℃, the dipping time is 30-50min, one dipping and one rolling are carried out, and the rolling residual rate is 80-90%.
Preferably, after padding the cotton fabric with the chitosan finishing liquid, washing and drying the cotton fabric;
preferably, the drying temperature is 90-100 ℃ and the drying time is 5-10 min.
Preferably, the halamine precursor is obtained by copolymerization of vinyl azlactone and allyl dimethyl hydantoin at a mass ratio of 1:3-4 under the initiation of azobisisobutyronitrile;
preferably, the temperature of the copolymerization reaction is 70-80 ℃ and the time is 8-10 h.
Preferably, the halamine antibacterial finishing liquid is a DMF (dimethyl formamide) solution containing a halamine precursor, and the content of the halamine precursor is 1-5 wt%.
Preferably, the process conditions of padding the halamine antibacterial finishing liquid comprise: the bath ratio is 1:20-40, the temperature is 80-90 ℃, the dipping time is 40-60min, the two dipping and the two rolling are carried out, and the rolling residual rate is 80-90%.
Preferably, after padding the cotton fabric coated with chitosan on the surface with the halamine antibacterial finishing liquid, pre-drying the cotton fabric;
preferably, the pre-drying temperature is 80-90 ℃ and the time is 20-40 min.
Preferably, the chlorination is carried out by using 0.1-10 wt% sodium hypochlorite solution for 1-2 h.
According to the invention, the affinity of chitosan to cotton fabric is utilized, the chitosan is firstly coated on the surface of the cotton fabric, then the lactone ring structure of azlactone and nucleophilic groups such as amino, hydroxyl and the like on the chitosan are utilized to carry out ring-opening reaction, so that the copolymer of azlactone and allyl dimethyl hydantoin can be grafted to the surface of the cotton fabric coated with chitosan, and after chlorination, the purpose of grafting halamine compound on the surface of the cotton fabric can be realized, and the obtained fabric can obtain efficient and lasting antibacterial property.
Furthermore, in order to enhance the grafting firmness of the chitosan on the surface of the cotton fabric, the BTCA is used as a cross-linking agent, and the chitosan is firmly linked on the surface of the cotton fabric under the catalysis of sodium hypophosphite, so that the antibacterial durability of the antibacterial fabric is enhanced.
Compared with the traditional method, the antibacterial fabric disclosed by the invention is very simple in preparation process, low in baking temperature and short in time, and can effectively reduce energy consumption.
Drawings
Fig. 1 is a schematic diagram of a synthetic route of the antibacterial fabric before chlorination.
Detailed Description
Hereinafter, the technical solution of the present invention will be described in detail by specific examples, but these examples should be explicitly proposed for illustration, but should not be construed as limiting the scope of the present invention.
Example 1
A preparation method of an efficient and durable antibacterial fabric comprises the following steps:
s1, adding chitosan (the degree of deacylation is more than or equal to 95%), BTCA and sodium hypophosphite into water, and uniformly stirring to obtain a chitosan finishing liquid with the chitosan concentration of 3 wt%, the BTCA concentration of 3 wt% and the sodium hypophosphite concentration of 3 wt%;
soaking a cotton fabric in the chitosan finishing liquid according to a bath ratio of 1:30, soaking for 40min at 60 ℃, soaking for one time and rolling for 80% of rolling residue, taking out, pre-drying for 10min at 60 ℃, washing with clear water, and drying for 5min at 100 ℃ to obtain the cotton fabric with the chitosan coated on the surface;
s2, adding 2-vinyl-4, 4-dimethyl azlactone and 3-allyl-5, 5-dimethyl hydantoin with the mass ratio of 1:4 into toluene, stirring and mixing uniformly, adding azobisisobutyronitrile AIBN with the mass of 3 wt% of azlactone, heating to 80 ℃ under the protection of inert gas, preserving heat, stirring and reacting for 8 hours, adding toluene for dilution after the reaction is finished, adding n-hexane for settling out solids, filtering and drying to obtain a copolymer of azlactone and allyl dimethyl hydantoin;
adding the copolymer into DMF to obtain 3 wt% of halamine antibacterial finishing liquid; soaking the chitosan-coated cotton fabric in the halamine antibacterial finishing liquid according to a bath ratio of 1:30 for 50min at 80 ℃, soaking for two times and rolling for two times, wherein the rolling residue rate is 90%, taking out the cotton fabric, pre-drying the cotton fabric for 30min at 80 ℃, washing the cotton fabric with a DMF (dimethyl formamide) solvent, washing the cotton fabric with ethanol, drying the cotton fabric at 90 ℃, soaking the cotton fabric in a 1 wt% sodium hypochlorite solution (the pH value is adjusted to 7 by concentrated sulfuric acid), standing the cotton fabric for 90min at normal temperature, taking out the cotton fabric, washing the cotton fabric with water, and drying the cotton fabric for 60min at 45 ℃ to obtain the efficient durable antibacterial.
Example 2
A preparation method of an efficient and durable antibacterial fabric comprises the following steps:
s1, adding chitosan (the degree of deacylation is more than or equal to 95%), BTCA and sodium hypophosphite into water, and uniformly stirring to obtain a chitosan finishing liquid with the chitosan concentration of 2 wt%, the BTCA concentration of 5 wt% and the sodium hypophosphite concentration of 1 wt%;
soaking a cotton fabric in the chitosan finishing liquid according to a bath ratio of 1:40 for 30min at 70 ℃, soaking and rolling for one time, wherein the rolling residue rate is 90%, taking out the cotton fabric, pre-drying the cotton fabric for 10min at 60 ℃, washing the cotton fabric with clear water, and drying the cotton fabric for 10min at 90 ℃ to obtain the cotton fabric with the chitosan coated on the surface;
s2, adding 2-vinyl-4, 4-dimethyl azlactone and 3-allyl-5, 5-dimethyl hydantoin with the mass ratio of 1:3 into toluene, stirring and mixing uniformly, adding azobisisobutyronitrile AIBN with the mass of 3 wt% of azlactone, heating to 70 ℃ under the protection of inert gas, preserving heat, stirring and reacting for 10 hours, adding toluene for dilution after the reaction is finished, adding n-hexane for settling out solids, filtering and drying to obtain a copolymer of azlactone and allyl dimethyl hydantoin;
adding the copolymer into DMF to obtain 1 wt% of halamine antibacterial finishing liquid; soaking the chitosan-coated cotton fabric in the halamine antibacterial finishing liquid according to a bath ratio of 1:40 for 40min at 90 ℃, soaking for two times and rolling for two times, wherein the rolling residue rate is 80%, taking out the cotton fabric, pre-drying the cotton fabric for 20min at 90 ℃, washing the cotton fabric with a DMF (dimethyl formamide) solvent, washing the cotton fabric with ethanol, drying the cotton fabric at 90 ℃, soaking the cotton fabric in a 1 wt% sodium hypochlorite solution (the pH value is adjusted to 7 by concentrated sulfuric acid), standing the cotton fabric for 90min at normal temperature, taking out the cotton fabric, washing the cotton fabric with water, and drying the cotton fabric for 60min at 45 ℃ to obtain the efficient durable antibacterial.
Example 3
A preparation method of an efficient and durable antibacterial fabric comprises the following steps:
s1, adding chitosan (the degree of deacylation is more than or equal to 95%), BTCA and sodium hypophosphite into water, and uniformly stirring to obtain a chitosan finishing liquid with the chitosan concentration of 5 wt%, the BTCA concentration of 1 wt% and the sodium hypophosphite concentration of 5 wt%;
soaking a cotton fabric in the chitosan finishing liquid according to a bath ratio of 1:20, soaking for 50min at 60 ℃, soaking and rolling for one time, wherein the rolling residue rate is 80%, taking out, pre-drying for 10min at 60 ℃, washing with clear water, and drying for 5min at 100 ℃ to obtain the cotton fabric with the chitosan coated on the surface;
s2, adding 2-vinyl-4, 4-dimethyl azlactone and 3-allyl-5, 5-dimethyl hydantoin with the mass ratio of 1:4 into toluene, stirring and mixing uniformly, adding azobisisobutyronitrile AIBN with the mass of 3 wt% of azlactone, heating to 80 ℃ under the protection of inert gas, preserving heat, stirring and reacting for 8 hours, adding toluene for dilution after the reaction is finished, adding n-hexane for settling out solids, filtering and drying to obtain a copolymer of azlactone and allyl dimethyl hydantoin;
adding the copolymer into DMF to obtain 5 wt% of halamine antibacterial finishing liquid; soaking the chitosan-coated cotton fabric in the halamine antibacterial finishing liquid according to a bath ratio of 1:20 for 60min at 80 ℃, soaking for two times and rolling for two times, wherein the rolling residue rate is 90%, taking out the cotton fabric, pre-drying the cotton fabric for 40min at 80 ℃, washing the cotton fabric with a DMF (dimethyl formamide) solvent, washing the cotton fabric with ethanol, drying the cotton fabric at 90 ℃, soaking the cotton fabric in a 1 wt% sodium hypochlorite solution (the pH value is adjusted to 7 by concentrated sulfuric acid), standing the cotton fabric for 90min at normal temperature, taking out the cotton fabric, washing the cotton fabric with water, and drying the cotton fabric for 60min at 45 ℃ to obtain the efficient durable antibacterial fabric.
Comparative example 1
A preparation method of an antibacterial fabric comprises the following steps:
s1, adding chitosan (the degree of deacylation is more than or equal to 95%), BTCA and sodium hypophosphite into water, and uniformly stirring to obtain a chitosan finishing liquid with the chitosan concentration of 3 wt%, the BTCA concentration of 3 wt% and the sodium hypophosphite concentration of 3 wt%;
soaking a cotton fabric in the chitosan finishing liquid according to a bath ratio of 1:30, soaking for 40min at 60 ℃, soaking for one time and rolling for 80% of rolling residue, taking out, pre-drying for 10min at 60 ℃, washing with clear water, and drying for 5min at 100 ℃ to obtain the cotton fabric with the chitosan coated on the surface;
s2, adding 3-allyl-5, 5-dimethylhydantoin into toluene, uniformly stirring, adding azobisisobutyronitrile AIBN with the mass of 0.6 wt% of that of the 3-allyl-5, 5-dimethylhydantoin, heating to 80 ℃ under the protection of inert gas, preserving heat, stirring, reacting for 8 hours, adding toluene for dilution after the reaction is finished, adding n-hexane for settling out a solid, filtering, and drying to obtain a polymer of the allyl dimethylhydantoin;
adding the polymer into DMF to obtain 3 wt% of halamine antibacterial finishing liquid; soaking the chitosan-coated cotton fabric in the halamine antibacterial finishing liquid according to a bath ratio of 1:30 for 50min at 80 ℃, soaking for two times and rolling for two times, wherein the rolling residue rate is 90%, taking out the cotton fabric, pre-drying the cotton fabric for 30min at 80 ℃, washing the cotton fabric with a DMF (dimethyl formamide) solvent, washing the cotton fabric with ethanol, drying the cotton fabric at 90 ℃, soaking the cotton fabric in a 1 wt% sodium hypochlorite solution (the pH value is adjusted to 7 by concentrated sulfuric acid), standing the cotton fabric for 90min at normal temperature, taking out the cotton fabric, washing the cotton fabric with water, and drying the cotton fabric for 60min at 45 ℃ to obtain the antibacterial.
Comparative example 2
A preparation method of an antibacterial fabric comprises the following steps:
s1, adding 2-vinyl-4, 4-dimethyl azlactone and 3-allyl-5, 5-dimethyl hydantoin with the mass ratio of 1:4 into toluene, stirring and mixing uniformly, adding azobisisobutyronitrile AIBN with the mass of 3 wt% of azlactone, heating to 80 ℃ under the protection of inert gas, preserving heat, stirring and reacting for 8 hours, adding toluene for dilution after the reaction is finished, adding n-hexane for settling out solids, filtering and drying to obtain a copolymer of azlactone and allyl dimethyl hydantoin;
s2, adding the copolymer into DMF to obtain 3 wt% of halamine antibacterial finishing liquid; soaking cotton fabrics in the halamine antibacterial finishing liquid according to a bath ratio of 1:30 for 50min at 80 ℃, soaking for two times and rolling for two times, with a rolling retention rate of 90%, taking out, pre-drying for 30min at 80 ℃, washing with a DMF (dimethyl formamide) solvent, washing with ethanol, drying at 90 ℃, soaking in a 1 wt% sodium hypochlorite solution (with the pH value adjusted to 7 by concentrated sulfuric acid), standing for 90min at normal temperature, taking out, washing with water, and drying for 60min at 45 ℃ to obtain the antibacterial fabric.
The antibacterial effect of the antibacterial fabrics of the examples and the comparative examples is tested by referring to an oscillation method specified in FZ/T73023-2006 antibacterial knitwear test standard, and the test results are shown in Table 1:
TABLE 1
Figure BDA0002857553180000071
Figure BDA0002857553180000081
As can be seen from the table above, the antibacterial fabric obtained by the method has efficient and lasting antibacterial property.
The tensile breaking strength of the antibacterial fabric described in the examples and the comparative examples is determined by referring to GB/T3923-2013 fabric tensile property, and the test results are shown in the following table 2:
TABLE 2
Loss of breaking strength (warp direction) Loss of breaking tenacity (weft)
Cotton fabric as such - -
Example 1 13.8% 15.2%
Comparative example 1 21.3% 23.6%
Comparative example 2 28.6% 27.9%
As shown in the table, the antibacterial fabric obtained by the method has good wearability.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A preparation method of an efficient and durable antibacterial fabric is characterized by comprising the following steps:
s1, padding the cotton fabric with the chitosan finishing liquid to obtain the cotton fabric with the chitosan coated on the surface;
s2, padding the cotton fabric coated with chitosan on the surface with halamine antibacterial finishing liquid, and chlorinating to obtain the efficient and lasting antibacterial fabric;
here, the halamine antibacterial finishing liquid includes a halamine precursor which is a copolymer of vinyl azlactone and allyl dimethylhydantoin.
2. The preparation method of the efficient and durable antibacterial fabric according to claim 1, wherein the chitosan finishing liquid comprises the following components in percentage by weight: 2-5 wt% of chitosan, 1-5 wt% of BTCA, 1-5 wt% of sodium hypophosphite and the balance of water.
3. The preparation method of the efficient and durable antibacterial fabric according to claim 1 or 2, wherein the process conditions of padding the chitosan finishing liquid comprise: the bath ratio is 1:20-40, the temperature is 60-70 ℃, the dipping time is 30-50min, one dipping and one rolling are carried out, and the rolling residual rate is 80-90%.
4. The preparation method of the efficient and durable antibacterial fabric according to any one of claims 1 to 3, characterized by further comprising the steps of washing and drying the cotton fabric after the cotton fabric is padded with the chitosan finishing liquid;
preferably, the drying temperature is 90-100 ℃ and the drying time is 5-10 min.
5. The preparation method of the efficient and durable antibacterial fabric according to any one of claims 1 to 4, wherein the halamine precursor is obtained by copolymerization of vinyl azlactone and allyl dimethylhydantoin at a mass ratio of 1:3-4 under the initiation of azobisisobutyronitrile;
preferably, the temperature of the copolymerization reaction is 70-80 ℃ and the time is 8-10 h.
6. The preparation method of the high-efficiency durable antibacterial fabric according to any one of claims 1 to 5, wherein the halamine antibacterial finishing liquid is a DMF solution containing a halamine precursor, and the content of the halamine precursor is 1-5 wt%.
7. The preparation method of the high-efficiency durable antibacterial fabric according to any one of claims 1 to 6, wherein the process conditions of padding the halamine antibacterial finishing liquid comprise: the bath ratio is 1:20-40, the temperature is 80-90 ℃, the dipping time is 40-60min, the two dipping and the two rolling are carried out, and the rolling residual rate is 80-90%.
8. The preparation method of the efficient and durable antibacterial fabric according to any one of claims 1 to 7, characterized by padding the chitosan-coated cotton fabric with the halamine antibacterial finishing liquid, and then pre-drying the cotton fabric;
preferably, the pre-drying temperature is 80-90 ℃ and the time is 20-40 min.
9. The preparation method of the high-efficiency durable antibacterial fabric according to any one of claims 1 to 8, wherein the chlorination is performed by using a 0.1-10 wt% sodium hypochlorite solution for 1-2 h.
10. An efficient and durable antibacterial fabric, which is prepared by the preparation method of any one of claims 1 to 9.
CN202011552978.0A 2020-12-24 2020-12-24 Efficient and lasting antibacterial fabric and preparation method thereof Withdrawn CN112647293A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113564915A (en) * 2021-07-29 2021-10-29 安徽唯诗杨信息科技有限公司 Ionic antibacterial anti-mite heat storage fabric and processing technology thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113564915A (en) * 2021-07-29 2021-10-29 安徽唯诗杨信息科技有限公司 Ionic antibacterial anti-mite heat storage fabric and processing technology thereof

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