CN115262215B - Antibacterial silk fabric and preparation method thereof - Google Patents
Antibacterial silk fabric and preparation method thereof Download PDFInfo
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- CN115262215B CN115262215B CN202210434131.5A CN202210434131A CN115262215B CN 115262215 B CN115262215 B CN 115262215B CN 202210434131 A CN202210434131 A CN 202210434131A CN 115262215 B CN115262215 B CN 115262215B
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 113
- 239000004744 fabric Substances 0.000 title claims abstract description 94
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title description 5
- 239000007788 liquid Substances 0.000 claims abstract description 35
- NPFYZDNDJHZQKY-UHFFFAOYSA-N 4-Hydroxybenzophenone Chemical compound C1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 NPFYZDNDJHZQKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 33
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- 238000000034 method Methods 0.000 claims abstract description 16
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 39
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 13
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- 241000588724 Escherichia coli Species 0.000 abstract description 11
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 16
- 239000000835 fiber Substances 0.000 description 11
- 239000004753 textile Substances 0.000 description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
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- 229910052709 silver Inorganic materials 0.000 description 3
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- 238000004458 analytical method Methods 0.000 description 2
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- 244000005700 microbiome Species 0.000 description 2
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- 210000003491 skin Anatomy 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 241000255789 Bombyx mori Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000006683 Mannich reaction Methods 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
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- 230000001580 bacterial effect Effects 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- YXVFYQXJAXKLAK-UHFFFAOYSA-N biphenyl-4-ol Chemical group C1=CC(O)=CC=C1C1=CC=CC=C1 YXVFYQXJAXKLAK-UHFFFAOYSA-N 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000003833 cell viability Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 238000000578 dry spinning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000003628 erosive effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- MGJURKDLIJVDEO-UHFFFAOYSA-N formaldehyde;hydrate Chemical compound O.O=C MGJURKDLIJVDEO-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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- 235000015097 nutrients Nutrition 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 210000002374 sebum Anatomy 0.000 description 1
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- 210000004243 sweat Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 238000002166 wet spinning Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—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
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/152—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen having a hydroxy group bound to a carbon atom of a six-membered aromatic ring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to an antibacterial silk fabric and a preparation method thereof. The fabric can be prepared by the following method: the silk fabric is pretreated in hydrogen peroxide, and the pretreated silk fabric is subjected to antibacterial finishing in finishing liquid containing 4-hydroxybenzophenone and formaldehyde aqueous solution, so that the antibacterial silk fabric is prepared. The antibacterial silk fabric prepared by the method has an initial antibacterial rate of more than 97.0% on escherichia coli, and still has strong antibacterial performance on the escherichia coli after being washed for 10 times, and the antibacterial rate is more than 91.5%; the initial antibacterial rate of the antibacterial silk fabric to staphylococcus aureus reaches more than 97.0%, and after 10 times of washing, the antibacterial silk fabric still has strong antibacterial performance to staphylococcus aureus, and the antibacterial rate reaches more than 92.0%.
Description
Technical Field
The invention belongs to the technical field of fabric preparation, and particularly relates to an antibacterial silk fabric and a preparation method thereof.
Background
At present, clothes worn by people belong to porous textiles, sweat, sebum, skin epidermis scraps and the like generated by metabolism of human bodies are easily adsorbed on the porous textiles, and the metabolites form nutrient bases of microorganisms, and the textiles form survival sites of bacteria. Therefore, the development of antibacterial textiles is one of the trends of the health development of the society.
Antibacterial refers to the physical or chemical means of impeding the growth and propagation process of bacteria, ultimately killing the bacteria. The antibacterial textile not only can avoid the erosion of microorganisms to the textile, but also can block the transmission path of pathogenic bacteria.
Silk is a continuous long fiber formed by solidifying silk liquid secreted by mature silkworms during cocoon formation, is also called natural silk, is a natural fiber, and is one of the earliest animal fibers used by human beings. The silk fabric is particularly soft and close-fitting, is rich in 18 amino acids and natural porous protein fiber components necessary for a human body, can excellently regulate blood circulation and metabolism of the human body and can enhance cell viability of skin, thereby achieving the effects of delaying skin aging and nourishing skin. However, silk fabrics are particularly prone to bacterial growth in wet environments, and therefore, there is a need to optimize their antimicrobial properties.
The literature research shows that the antibacterial performance of silk fabric is widely concerned. Such as: the Chinese patent application No. 201710177609.X discloses an antibacterial natural silk fiber product and a preparation method thereof: introducing silver ions dissolved in formic acid into silk and realizing uniform dispersion in the silk; then, the silver ions are directly reduced into nano metallic silver in situ in the silk by utilizing the strong reducing aldehyde group contained in the carboxylic acid formic acid, so that the uniform load of the nano silver in the silk is realized; the Chinese patent application No. 201710344004.5 discloses a preparation method of an antibacterial silk fabric: taking polyurethane spinning solution as a matrix, and preparing polyurethane graphene composite fibers by adding graphene dispersion liquid through dry spinning or wet spinning; and twisting polyurethane graphene composite fibers as warp yarns, and weaving with silk twisting as weft yarns to obtain the antibacterial silk fabric. The antibacterial silk fiber fabric prepared by the methods has a plurality of defects, such as: the first method adopts conventional formic acid to soak and swell, the pores on the surface of silk fiber are smaller, the nano silver loading capacity of silk fiber is limited, and thus the antibacterial performance of silk fiber products is poor; the graphene dispersion liquid adopted by the second method is expensive and cannot be produced in large scale. Therefore, the silk fabric antibacterial technology in the prior art is improved, and the obtained silk fabric with high antibacterial performance and low cost has important practical significance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an antibacterial silk fabric and a preparation method thereof.
The invention aims to provide an antibacterial silk fabric which has the characteristics of environmental protection, human friendliness and the like; the fabric can be prepared by the following method: the silk fabric is pretreated in hydrogen peroxide, and the pretreated silk fabric is subjected to antibacterial finishing in finishing liquid containing 4-hydroxybenzophenone and formaldehyde aqueous solution, so that the antibacterial silk fabric is prepared.
The invention aims at realizing the following technical scheme:
the preparation method of the antibacterial silk fabric comprises the following steps:
s1, preparing an antibacterial finishing liquid: dissolving 4-hydroxy diphenyl ketone and formaldehyde water solution in ethanol, and uniformly stirring to obtain the antibacterial finishing liquid.
Preferably, the dosage ratio of the 4-hydroxybenzophenone, the formaldehyde aqueous solution and the ethanol is 1g to (10-20) mL to (100-200) mL.
Preferably, the mass fraction of the formaldehyde aqueous solution is 1-2%.
The molecular structure of the 4-hydroxybenzophenone is as follows:
s2, pretreatment of silk fabric: and immersing the silk fabric into an NaOH aqueous solution for pretreatment.
Preferably, the mass fraction of the NaOH aqueous solution is 3-5%.
Preferably, the pretreatment time is 5 to 15 minutes.
Preferably, the pretreatment temperature is 40 to 50 ℃.
Preferably, the dosage ratio of the silk fabric to the NaOH aqueous solution is 1g to (10-20) mL.
S3, antibacterial finishing: immersing the silk fabric treated in the step S2 into the finishing liquid prepared in the step S1, regulating and controlling the temperature of the finishing liquid, performing reaction finishing, and washing after the reaction is finished; finally, drying, rolling and collecting to obtain the antibacterial silk fabric.
Preferably, the temperature of the finishing liquid is 30-40 ℃.
Preferably, the reaction finishing time is 30 to 40 minutes.
Preferably, the dosage ratio of the silk fabric to the finishing liquid is 1g to (20-40) mL.
The main reaction mechanism analysis of the invention: the 4-hydroxybenzophenone has poor solubility in aqueous solvent, is unstable and has poor reactivity. The inventors of the present application have unexpectedly found that grafting of 4-hydroxybenzophenone onto the silk fabric surface is achieved by subjecting 4-hydroxybenzophenone, formaldehyde and silk fabric to a mannich reaction in an ethanol solvent. The benzophenone structure generates free radicals under the irradiation of light, and forms active oxygen groups such as bactericidal hydroxyl free radicals, singlet oxygen molecules, peroxides and the like by the action of oxygen molecules in the air. The active oxygen groups have strong sterilization performance under the illumination condition, so that the modified silk fabric has good sterilization performance in sunlight.
The invention has the following remarkable characteristics:
(1) The inventors of the present application have unexpectedly found that reacting the treated silk fabric with 4-hydroxybenzophenone to graft it onto the silk fabric; the two are combined through chemical bonds, the combination is very firm, and the antibacterial performance of the solar water heater under sunlight is still unchanged after the solar water heater is washed for a plurality of times; further, it was found that the antibacterial effect of the silk fabric without pretreatment with NaOH aqueous solution was slightly inferior.
(2) The antibacterial finishing process is simple, the sources of raw materials are wide, and the antibacterial finishing process has a prospect of mass production.
(3) The antibacterial silk fabric prepared by the method has an initial antibacterial rate of more than 97.0% on escherichia coli, and still has strong antibacterial performance on the escherichia coli after being washed for 10 times, and the antibacterial rate is more than 91.5%; the initial antibacterial rate of the antibacterial silk fabric to staphylococcus aureus reaches more than 97.0%, and after 10 times of washing, the antibacterial silk fabric still has strong antibacterial performance to staphylococcus aureus, and the antibacterial rate reaches more than 92.0%.
Drawings
FIG. 1 shows a schematic diagram of the surface structure of the grafted wool.
Detailed Description
The examples and comparative examples described below illustrate the invention in detail.
Example 1
In this embodiment, a preparation method of an antibacterial silk fabric includes the following steps:
s1, preparing an antibacterial finishing liquid: 1g of 4-hydroxybenzophenone and 15mL of formaldehyde aqueous solution with mass fraction of 1.5% are dissolved in 150mL of ethanol, and the mixture is uniformly stirred to prepare the antibacterial finishing liquid.
S2, pretreatment of silk fabric: 1000g of silk fabric is immersed in 15L of NaOH aqueous solution with the mass fraction of 4% for pretreatment, the treatment time is 10 minutes, and the treatment temperature is 45 ℃.
S3, antibacterial finishing: immersing 1000g of silk fabric treated in the step S2 into 30L of finishing liquid prepared in the step S1, regulating the temperature of the finishing liquid to 35 ℃, performing reaction finishing for 35 minutes, and washing after the reaction is finished; finally, drying, rolling and collecting to obtain the antibacterial silk fabric.
Example 2
In this embodiment, a preparation method of an antibacterial silk fabric includes the following steps:
s1, preparing an antibacterial finishing liquid: 1g of 4-hydroxybenzophenone and 10mL of formaldehyde aqueous solution with mass fraction of 1.0% are dissolved in 100mL of ethanol, and the mixture is uniformly stirred to prepare the antibacterial finishing liquid.
S2, pretreatment of silk fabric: 1000g of silk fabric is immersed in 10L of NaOH aqueous solution with mass fraction of 3% for pretreatment, the treatment time is 5 minutes, and the treatment temperature is 40 ℃.
S3, antibacterial finishing: immersing 1000g of silk fabric treated in the step S2 into 20L of finishing liquid prepared in the step S1, regulating the temperature of the finishing liquid to be 30 ℃, carrying out reaction finishing for 30 minutes, and washing after the reaction is finished; finally, drying, rolling and collecting to obtain the antibacterial silk fabric.
Example 3
In this embodiment, a preparation method of an antibacterial silk fabric includes the following steps:
s1, preparing an antibacterial finishing liquid: 1g of 4-hydroxybenzophenone and 20mL of formaldehyde aqueous solution with mass fraction of 2.0% are dissolved in 200mL of ethanol, and the mixture is uniformly stirred to prepare the antibacterial finishing liquid.
S2, pretreatment of silk fabric: 1000g of silk fabric is immersed in 20L of NaOH aqueous solution with mass fraction of 5% for pretreatment, the treatment time is 15 minutes, and the treatment temperature is 50 ℃.
S3, antibacterial finishing: immersing 1000g of silk fabric treated in the step S2 into 40L of finishing liquid prepared in the step S1, regulating the temperature of the finishing liquid to 40 ℃, performing reaction finishing for 40 minutes, and washing after the reaction is finished; finally, drying, rolling and collecting to obtain the antibacterial silk fabric.
Comparative example A
In this comparative example, by way of comparison with example 1, in step S1, "1g of 4-hydroxybenzophenone" was adjusted to "0.1g of 4-hydroxybenzophenone", and the other preparation methods were carried out in accordance with the preparation method of example 1.
Comparative example B
In this comparative example, the pretreatment of the silk fabric of step S2 was omitted and other preparation methods were carried out according to the preparation method of example 1, taking example 1 as a comparison.
Comparative example C
In this comparative example, with example 1 as a comparison, the "15% by mass aqueous NaOH solution" in step S2 was adjusted to "15% by mass H 2 O 2 Aqueous solution ", other preparation methods were carried out according to the preparation method of example 1.
Comparative example D
In this comparative example, with reference to example 1, the "temperature of the conditioning liquid was adjusted to 35 ℃ and the" temperature of the conditioning liquid was adjusted to 70 ℃ in step S3, and the other production methods were carried out in accordance with the production method of example 1.
Comparative example E
In this comparative example, by taking example 1 as a comparison, in step S3, "1000 g of silk fabric treated in step S2 was immersed in the finishing liquid prepared in step S1 of 30L" was adjusted to "1000 g of silk fabric treated in step S2 was immersed in the finishing liquid prepared in step S1 of 3.0L", and other preparation methods were carried out according to the preparation method of example 1.
Antibacterial performance test:
the antibacterial silk fabrics prepared in examples 1-3 and comparative examples A-E were subjected to antibacterial experiments respectively, and the specific antibacterial experiment method comprises the following steps: evaluation of antibacterial Properties of textiles according to GB/T20944.1-2007 part 1: the agar plate diffusion method is used for qualitatively detecting the fabrics, and the method is used for evaluating the antibacterial property of textiles according to GB/T20944.3-2008, section 3: the vibration method is used for measuring the quantitative antibacterial performance of the fabric, and the strains are staphylococcus aureus and escherichia coli. The qualitative detection result of the sample is represented by a bacteriostasis circle, the quantitative antibacterial activity is represented by a bacteriostasis rate, and the quantitative antibacterial activity is calculated according to the formula: antibacterial rate= (1-B/a) ×100%, wherein a is the number of viable bacteria on untreated fabric; b is the number of viable bacteria on the treated fabric. The fabrics to be tested were subjected to standard washing by referring to the washing method of GB/T20944.1-2007 washing fastness tester, and the antibacterial properties of the initial sample and the sample after washing 10 times were tested, and the test results are shown in tables 1 and 2.
TABLE 1 antibacterial factors of antibacterial silk fabrics prepared in examples 1-3 and comparative examples A-E against E.coli
As can be seen from Table 1, the antibacterial silk fabrics prepared in examples 1-3 have strong antibacterial properties against Escherichia coli. The antibacterial rate of the non-washed antibacterial silk fabric on the escherichia coli reaches more than 97.0%, and after 10 times of washing, the antibacterial silk fabric still has strong antibacterial performance on the escherichia coli, and the antibacterial rate reaches more than 91.5%. The antibacterial silk fabrics prepared in comparative examples A-E have obviously poorer antibacterial rate on escherichia coli, which shows that: the dosage of 4-hydroxybenzophenone, pretreatment of silk fabric, selection of NaOH aqueous solution, temperature and dosage of finishing liquid all have important influence on the antibacterial performance of wool fabric.
Table 2 antibacterial ratio of antibacterial silk fabrics prepared in examples 1 to 3 and comparative examples a to E against staphylococcus aureus
As can be seen from Table 2, the antibacterial silk fabrics prepared in examples 1-3 have very strong antibacterial properties against Staphylococcus aureus. The antibacterial rate of the non-washed antibacterial silk fabric on staphylococcus aureus reaches more than 97.0%, and after washing for 10 times, the antibacterial silk fabric still has strong antibacterial performance on staphylococcus aureus, and the antibacterial rate reaches more than 92.0%. The antibacterial silk fabrics prepared in comparative examples A-E have obviously poorer antibacterial rate on staphylococcus aureus, which shows that: the dosage of 4-hydroxybenzophenone, pretreatment of silk fabric, selection of NaOH aqueous solution, temperature and dosage of finishing liquid all have important influence on the antibacterial performance of wool fabric.
The antibacterial silk fabric prepared by the invention can be considered to have strong antibacterial performance through researching antibacterial rate analysis of the antibacterial silk fabric on staphylococcus aureus and escherichia coli.
Claims (5)
1. The preparation method of the antibacterial silk fabric is characterized by comprising the following steps of:
s1, preparing an antibacterial finishing liquid: dissolving 4-hydroxybenzophenone and formaldehyde aqueous solution in ethanol, and uniformly stirring to obtain antibacterial finishing liquid;
s2, pretreatment of silk fabric: immersing silk fabric into NaOH aqueous solution for pretreatment;
s3, antibacterial finishing: immersing the silk fabric treated in the step S2 into the finishing liquid prepared in the step S1, regulating and controlling the temperature of the finishing liquid, performing reaction finishing, and washing after the reaction is finished; finally, drying, rolling and collecting to obtain the antibacterial silk fabric;
the mass fraction of the NaOH aqueous solution in the step S2 is 3-5%;
the dosage ratio of the silk fabric to the NaOH aqueous solution in the step S2 is 1g to (10-20) mL;
the pretreatment time in the step S2 is 5-15 minutes; the pretreatment temperature is 40-50 ℃;
the temperature of the finishing liquid in the step S3 is 30-40 ℃;
the reaction finishing time in the step S3 is 30-40 minutes.
2. The method for preparing the antibacterial silk fabric according to claim 1, wherein the dosage ratio of the 4-hydroxybenzophenone, the formaldehyde aqueous solution and the ethanol in the step S1 is 1g to (10-20) mL to (100-200) mL.
3. The method for preparing the antibacterial silk fabric according to claim 1, wherein the mass fraction of the formaldehyde aqueous solution in the step S1 is 1-2%.
4. The method for preparing the antibacterial silk fabric according to claim 1, wherein the dosage ratio of the silk fabric to the finishing liquid in the step S3 is 1g to (20-40) mL.
5. An antibacterial silk fabric, characterized in that the antibacterial silk fabric is prepared by the method of any one of claims 1-4.
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| CN202210434131.5A CN115262215B (en) | 2022-04-24 | 2022-04-24 | Antibacterial silk fabric and preparation method thereof |
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| CN202210434131.5A CN115262215B (en) | 2022-04-24 | 2022-04-24 | Antibacterial silk fabric and preparation method thereof |
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| US3993779A (en) * | 1969-07-17 | 1976-11-23 | Ciba-Geigy Ag | Method for combating harmful microorganisms using 2-hydroxy-benzophenone derivatives |
| CN105040428A (en) * | 2015-08-29 | 2015-11-11 | 浙江理工大学 | Reactive light stabilizer suitable for protein fibers and preparing method thereof |
| CN110592977A (en) * | 2019-08-20 | 2019-12-20 | 浙江理工大学上虞工业技术研究院有限公司 | Rapid reactive dyeing method suitable for silk |
| CN110644235A (en) * | 2019-09-29 | 2020-01-03 | 浙江嘉欣丝绸股份有限公司 | Preparation method and application of anti-ultraviolet and antibacterial silk fabric |
| CN112442894A (en) * | 2020-11-02 | 2021-03-05 | 苏州大学 | Preparation method of durable flame-retardant silk product |
| CN112647282A (en) * | 2020-12-29 | 2021-04-13 | 湖南寐家居科技有限公司 | Antibacterial finishing method of silk fabric |
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Patent Citations (6)
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| US3993779A (en) * | 1969-07-17 | 1976-11-23 | Ciba-Geigy Ag | Method for combating harmful microorganisms using 2-hydroxy-benzophenone derivatives |
| CN105040428A (en) * | 2015-08-29 | 2015-11-11 | 浙江理工大学 | Reactive light stabilizer suitable for protein fibers and preparing method thereof |
| CN110592977A (en) * | 2019-08-20 | 2019-12-20 | 浙江理工大学上虞工业技术研究院有限公司 | Rapid reactive dyeing method suitable for silk |
| CN110644235A (en) * | 2019-09-29 | 2020-01-03 | 浙江嘉欣丝绸股份有限公司 | Preparation method and application of anti-ultraviolet and antibacterial silk fabric |
| CN112442894A (en) * | 2020-11-02 | 2021-03-05 | 苏州大学 | Preparation method of durable flame-retardant silk product |
| CN112647282A (en) * | 2020-12-29 | 2021-04-13 | 湖南寐家居科技有限公司 | Antibacterial finishing method of silk fabric |
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