CN114790656A - Antibacterial lyocell fabric and preparation method thereof - Google Patents
Antibacterial lyocell fabric and preparation method thereof Download PDFInfo
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- CN114790656A CN114790656A CN202210434137.2A CN202210434137A CN114790656A CN 114790656 A CN114790656 A CN 114790656A CN 202210434137 A CN202210434137 A CN 202210434137A CN 114790656 A CN114790656 A CN 114790656A
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 138
- 239000004744 fabric Substances 0.000 title claims abstract description 126
- 229920000433 Lyocell Polymers 0.000 title claims abstract description 98
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000005406 washing Methods 0.000 claims abstract description 27
- 229920002413 Polyhexanide Polymers 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000007598 dipping method Methods 0.000 claims description 19
- 238000001035 drying Methods 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000008399 tap water Substances 0.000 claims description 11
- 235000020679 tap water Nutrition 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 10
- 230000035484 reaction time Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 241000588724 Escherichia coli Species 0.000 abstract description 11
- 241000191967 Staphylococcus aureus Species 0.000 abstract description 11
- 230000000052 comparative effect Effects 0.000 description 12
- 239000004753 textile Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 229920003043 Cellulose fiber Polymers 0.000 description 5
- 239000004627 regenerated cellulose Substances 0.000 description 5
- 239000003242 anti bacterial agent Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000006683 Mannich reaction Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- 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
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal 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)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a preparation method of an antibacterial lyocell fabric. The fabric can be prepared by the following method: and (3) performing antibacterial finishing on the lyocell fabric in finishing liquid containing polyhexamethylene biguanide hydrochloride and formaldehyde to obtain the antibacterial lyocell fabric. The initial bacteriostasis rate of the prepared antibacterial lyocell fabric to escherichia coli reaches more than 96%, the antibacterial lyocell fabric still has strong antibacterial performance to escherichia coli after being washed for 20 times, and the bacteriostasis rate reaches more than 94%; the initial bacteriostasis rate of the antibacterial lyocell fabric to staphylococcus aureus reaches more than 98%, and after 20 times of washing, the antibacterial lyocell fabric still has strong antibacterial performance to staphylococcus aureus, and the bacteriostasis rate reaches more than 94%.
Description
Technical Field
The invention belongs to the technical field of fabric preparation, and particularly relates to an antibacterial lyocell fabric and a preparation method thereof.
Background
With the vigorous development of synthetic fiber materials and textile products thereof, the synthetic fiber material quickly replaces the traditional materials, is widely applied to various departments of national economy such as industry, agriculture, military and the like, and is closely related to the daily life of people. However, because a large amount of sweat is produced by a human body, the traditional textile fabric clothes are easy to generate peculiar smell and breed bacteria in the using process. Therefore, how to improve the antibacterial property of the textile becomes an urgent problem to be solved, so that the fabric can eliminate the peculiar smell of the clothes and prevent the breeding of bacteria while showing comfort and health.
The lyocell fabric is woven by lyocell fibers, the lyocell fibers are called green fibers, the lyocell fabric is stable and excellent in performance, the raw materials are non-toxic and harmless and are easy to obtain, the lyocell fabric surpasses artificially synthesized fibers and natural fibers in performance, and pollution and toxic chemical reactions cannot be generated in the whole production process. Meanwhile, the composite material has high dry and wet strength, higher swelling ratio, unique fibrillation characteristic and good spinnability.
Lyocell fabrics have a wide range of applications, from apparel fabrics to textile articles in industrial, agricultural and military fields. However, lyocell fabric, like other synthetic fibers, belongs to a fabric which is easy to breed bacteria, which greatly limits the application field of lyocell fabric. Therefore, it is an important point of attention to impart excellent antibacterial performance to lyocell fabric.
Literature investigation and research show that the antibacterial performance of the lyocell fabric is widely concerned, such as: the Chinese patent application No. 201780071701.6 discloses an antibacterial regenerated cellulose fiber and a preparation method thereof: spinning a cellulose solution through a spinneret into a regeneration bath to obtain regenerated cellulose fibers; washing the regenerated cellulose fibers; and (3) treating the regenerated cellulose fibers with a quaternary ammonium compound solution with the concentration range of 0.1-1.5% w/w to obtain the antibacterial regenerated cellulose fibers, namely the antibacterial lyocell fibers. The lyocell fiber prepared by the method has strong antibacterial property, simple production process and low cost, but the antibacterial agent used by the lyocell fiber has single component and can not realize long-acting high-activity antibacterial effect. Therefore, the modification process of the antibacterial performance of the lyocell fabric needs to be further improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an antibacterial lyocell fabric and a preparation method thereof.
The invention aims to provide the antibacterial lyocell fabric which has the characteristics of environmental protection, human body friendliness and the like; the fabric can be prepared by the following method: and (3) performing antibacterial finishing on the lyocell fabric in finishing liquid containing polyhexamethylene biguanide hydrochloride and formaldehyde to obtain the antibacterial lyocell fabric.
The purpose of the invention is realized by the following technical scheme:
a preparation method of an antibacterial lyocell fabric comprises the following steps:
(1) preparing an antibacterial finishing liquid: and dissolving polyhexamethylene biguanide hydrochloride and formaldehyde aqueous solution in tap water, and uniformly stirring to prepare the antibacterial finishing liquid.
(2) Antibacterial finishing: pouring the finishing liquid prepared in the step (1) into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, enabling the lyocell fabric to enter the dipping tank (1) through a guide wheel (2), after the reaction is finished, washing the lyocell fabric with water through a washing tank (3), finally drying the lyocell fabric through a drying box (4), and collecting the lyocell fabric through a winding device (5) to obtain the antibacterial lyocell fabric.
A preparation method of an antibacterial lyocell fabric comprises the following steps:
(1) preparing an antibacterial finishing liquid: dissolving polyhexamethylene biguanide hydrochloride and formaldehyde aqueous solution in tap water, and uniformly stirring to prepare the antibacterial finishing liquid.
Preferably, the dosage ratio of the polyhexamethylene biguanide hydrochloride, the aqueous formaldehyde solution and the tap water is as follows: 1g to (6-10) mL to (100-200) mL.
Preferably, the mass fraction of the formaldehyde aqueous solution is: 5 to 9 percent.
(2) Antibacterial finishing: pouring the finishing liquid prepared in the step (1) into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, and the temperature of the finishing liquid is regulated and controlled to be 40-50 ℃; enabling the lyocell fabric to enter a dipping tank (1) through a guide wheel (2), wherein the reaction time is 1-2 minutes; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
Preferably, the usage ratio of the lyocell fabric to the finishing liquid is as follows: 1g to (10-20) mL.
Preferably, the preparation method of the antibacterial lyocell fabric comprises the following steps:
(1) preparing an antibacterial finishing liquid: 1g of polyhexamethylene biguanide hydrochloride and 8mL of formaldehyde aqueous solution with the mass fraction of 7% are dissolved in 150mL of tap water and are uniformly stirred to prepare the antibacterial finishing liquid.
(2) Antibacterial finishing: pouring the finishing liquid prepared in the step (1) into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, and the temperature of the finishing liquid is regulated and controlled to be 45 ℃; the lyocell fabric enters the dipping tank (1) through a guide wheel (2), and the usage ratio of the lyocell fabric to the finishing liquid is as follows: 1g to 15mL, and the reaction time is 1.5 minutes; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
The main reaction mechanism analysis of the invention is as follows: the polyhexamethylene biguanide hydrochloride has good antibacterial performance, and the preparation method leads the polyhexamethylene biguanide hydrochloride, formaldehyde and cellulose to have Mannich reaction, so as to graft the polyhexamethylene biguanide hydrochloride on the surface of the cellulose, thereby realizing that the lyocell fabric has stable antibacterial performance.
The invention has the following remarkable characteristics:
(1) according to the invention, polyhexamethylene biguanide hydrochloride reacts with the lyocell fabric to be grafted on the lyocell fabric; the two are combined through chemical bonds, the combination is very firm, and the antibacterial performance of the antibacterial agent is still unchanged after the antibacterial agent is washed for many times.
(2) The antibacterial finishing process is simple, the raw material source is wide, and the antibacterial finishing process has a large-scale production prospect.
(3) The initial bacteriostasis rate of the prepared antibacterial lyocell fabric to escherichia coli reaches more than 96%, the antibacterial lyocell fabric still has strong antibacterial performance to escherichia coli after being washed for 20 times, and the bacteriostasis rate reaches more than 94%; the initial bacteriostasis rate of the antibacterial lyocell fabric to staphylococcus aureus reaches more than 98%, and after 20 times of washing, the antibacterial lyocell fabric still has strong antibacterial performance to staphylococcus aureus, and the bacteriostasis rate reaches more than 94%.
Drawings
FIG. 1 is a schematic view of the antibacterial finishing apparatus of embodiments 1 to 3 (1-dipping tank; 2-guide wheel; 3-rinsing tank; 4-drying box; 5-winding apparatus).
Detailed Description
The examples and comparative examples described below illustrate the present invention in detail.
Example 1
In this embodiment, a preparation method of an antibacterial lyocell fabric includes the following steps:
(1) preparing an antibacterial finishing liquid: 1g of polyhexamethylene biguanide hydrochloride and 8mL of formaldehyde aqueous solution with the mass fraction of 7% are dissolved in 150mL of tap water and are uniformly stirred to prepare the antibacterial finishing liquid.
(2) Antibacterial finishing: pouring the finishing liquid into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, and the temperature of the finishing liquid is regulated and controlled to be 45 ℃; the lyocell fabric enters the dipping tank (1) through a guide wheel (2), and the usage ratio of the lyocell fabric to the finishing liquid is as follows: 1 g: 15mL, reaction time 1.5 minutes; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
Example 2
In this embodiment, a preparation method of an antibacterial lyocell fabric includes the following steps:
(1) preparing an antibacterial finishing liquid: 1g of polyhexamethylene biguanide hydrochloride and 6mL of formaldehyde aqueous solution with the mass fraction of 5% are dissolved in 100mL of tap water and are uniformly stirred to prepare the antibacterial finishing liquid.
(2) Antibacterial finishing: pouring the finishing liquid into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, and the temperature of the finishing liquid is regulated and controlled to be 40 ℃; the lyocell fabric enters a dipping tank (1) through a guide wheel (2), and the usage ratio of the lyocell fabric to finishing liquor is as follows: 1 g: 10mL, and the reaction time is 1 minute; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
Example 3
In this embodiment, a preparation method of an antibacterial lyocell fabric includes the following steps:
(1) preparing an antibacterial finishing liquid: 1g of polyhexamethylene biguanide hydrochloride and 10mL of formaldehyde aqueous solution with the mass fraction of 9 percent are dissolved in 200mL of tap water and are uniformly stirred to prepare the antibacterial finishing liquid.
(2) Antibacterial finishing: pouring the finishing liquid into a dipping tank (1) in an antibacterial finishing device, wherein the schematic diagram of the antibacterial finishing device is shown in figure 1, and the temperature of the finishing liquid is regulated and controlled to be 50 ℃; the lyocell fabric enters a dipping tank (1) through a guide wheel (2), and the usage ratio of the lyocell fabric to finishing liquor is as follows: the reaction time is 2 minutes in a ratio of 1g to 20 mL; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
Comparative example A
In this comparative example, "1 g of polyhexamethylene biguanide hydrochloride" was adjusted to "0.1 g of polyhexamethylene biguanide hydrochloride" in step (1) by way of comparison with example 1, and the other preparation process was carried out in accordance with the preparation process of example 1.
Comparative example B
Using example 1 as a comparison, in this comparative example, the "lyocell face fabric to finish usage ratio in step (2) was: 1 g: 15mL is adjusted to ensure that the dosage ratio of the lyocell fabric to the finishing liquid is as follows: 1 g: 150mL ", and the other preparation was carried out as in example 1.
Comparative example C
In this comparative example, the "temperature of conditioning dope was adjusted to 45 ℃ in step (2)" to the "temperature of conditioning dope was adjusted to 20 ℃ in comparison with example 1, and the other preparation method was carried out in the same manner as in example 1.
And (3) testing antibacterial performance:
the antibacterial lyocell fabrics prepared in examples 1-3 and comparative examples A-C are respectively subjected to antibacterial experiments, and the specific antibacterial experiment method comprises the following steps: according to GB/T20944.1-2007 evaluation part 1 of antibacterial performance of textiles: agar plate diffusion method, the qualitative detection is carried out on the fabric by the agar diffusion method, and the antibacterial performance of the textile is evaluated according to GB/T20944.3-2008, part 3 of the evaluation of the antibacterial performance of the textile: the quantitative antibacterial performance of the fabric is measured by a vibration method, and the strains are staphylococcus aureus and escherichia coli. The qualitative detection result of the sample is expressed by the inhibition zone, the quantitative antibacterial activity is expressed by the inhibition rate, and the quantitative antibacterial activity is calculated according to the formula: the bacteriostasis rate is (1-B/A) multiplied by 100 percent, wherein A is the number of viable bacteria on the untreated fabric; b is the number of live bacteria on the treated fabric. The fabric to be tested is subjected to standard washing by referring to a washing method of a GB/T20944.1-2007 color fastness to washing tester, the antibacterial performance of an initial sample and a sample after 20 times of washing is tested, and the test results are shown in tables 1 and 2.
TABLE 1 inhibition ratio of antibacterial lyocell fabrics prepared in examples 1-3 and comparative examples A-C against Escherichia coli
As can be seen from Table 1, the antibacterial lyocell fabrics prepared in examples 1 to 3 have a strong antibacterial property against Escherichia coli. The antibacterial rate of the unwashed antibacterial lyocell fabric to escherichia coli reaches more than 96%, and after 20 times of washing, the antibacterial lyocell fabric still has strong antibacterial performance to escherichia coli, and the antibacterial rate reaches more than 94%. The antibacterial ratio of the antibacterial lyocell fabric prepared in comparative examples A-C to Escherichia coli is obviously poor, which shows that: the usage amount of the polyhexamethylene biguanide hydrochloride, the usage amount ratio of the lyocell fabric to the finishing liquid and the temperature of the finishing liquid all have important influences on the antibacterial performance of the lyocell fabric.
TABLE 2 bacteriostasis rates of the antibacterial lyocell fabrics prepared in examples 1-3 and comparative examples A-C against Staphylococcus aureus
As can be seen from table 2, the antibacterial lyocell fabrics prepared in examples 1 to 3 have strong antibacterial properties against staphylococcus aureus. The antibacterial rate of the unwashed antibacterial lyocell fabric to staphylococcus aureus reaches more than 98%, after 20 times of washing, the antibacterial lyocell fabric still has strong antibacterial performance to staphylococcus aureus, and the antibacterial rate reaches more than 95%. The antibacterial ratio of the antibacterial lyocell fabric prepared in comparative examples A-C to Staphylococcus aureus is obviously poor, which shows that: the usage amount of the polyhexamethylene biguanide hydrochloride, the usage amount ratio of the lyocell fabric to the finishing liquid and the temperature of the finishing liquid all have important influence on the antibacterial performance of the lyocell fabric.
Through research on the antibacterial rate of the antibacterial lyocell fabric on staphylococcus aureus and escherichia coli, the antibacterial lyocell fabric prepared by the method has strong antibacterial performance.
Claims (7)
1. The preparation method of the antibacterial lyocell fabric is characterized by comprising the following steps of:
s1, preparation of an antibacterial finishing liquid: dissolving polyhexamethylene biguanide hydrochloride and formaldehyde aqueous solution in tap water, and uniformly stirring to prepare an antibacterial finishing liquid;
s2, antibacterial finishing: and (2) pouring the finishing liquid prepared in the step S1 into a dipping tank (1) in an antibacterial finishing device, enabling the lyocell fabric to enter the dipping tank (1) through a guide wheel (2), after the reaction is finished, washing the lyocell fabric with water through a washing tank (3), finally drying the lyocell fabric through a drying box (4), and collecting the lyocell fabric through a winding device (5) to obtain the antibacterial lyocell fabric.
2. The preparation method of the antibacterial lyocell fabric according to claim 1, characterized by comprising the following steps:
s1, preparation of an antibacterial finishing liquid: dissolving polyhexamethylene biguanide hydrochloride and formaldehyde aqueous solution in tap water, and uniformly stirring to prepare an antibacterial finishing liquid;
s2, antibacterial finishing: pouring the finishing liquid into a dipping tank (1) in an antibacterial finishing device, and regulating the temperature of the finishing liquid to be 40-50 ℃; the lyocell fabric enters a dipping tank (1) through a guide wheel (2), and the reaction time is 1-2 minutes; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
3. The preparation method of the antibacterial lyocell fabric according to claim 2, wherein the using amount ratio of the polyhexamethylene biguanide hydrochloride to the formaldehyde aqueous solution to tap water in the step S1 is 1g to (6-10) mL to (100-200) mL.
4. The preparation method of the antibacterial lyocell fabric according to claim 2, wherein the mass fraction of the formaldehyde aqueous solution in the step S1 is 5-9%.
5. The preparation method of the antibacterial lyocell fabric according to claim 2, wherein the usage ratio of the lyocell fabric to the finishing liquid in the step S2 is 1g to (10-20) mL.
6. The preparation method of the antibacterial lyocell fabric according to claim 1, characterized by comprising the following steps:
s1, preparation of an antibacterial finishing liquid: dissolving 1g of polyhexamethylene biguanide hydrochloride and 8mL of formaldehyde aqueous solution with the mass fraction of 7% in 150mL of tap water, and uniformly stirring to prepare an antibacterial finishing liquid;
s2, antibacterial finishing: pouring the finishing liquid into a dipping tank (1) in the antibacterial finishing device, and regulating the temperature of the finishing liquid to be 45 ℃; the lyocell fabric enters a dipping tank (1) through a guide wheel (2), the usage ratio of the lyocell fabric to finishing liquor is 1 g: 15mL, and the reaction time is 1.5 minutes; and after the reaction is finished, washing the fabric by a washing tank (3), finally drying the fabric by a drying box (4), and collecting the fabric by a winding device (5) to obtain the antibacterial lyocell fabric.
7. An antibacterial lyocell fabric, characterized by being prepared by the method of any one of claims 1 to 6.
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| CN109456472A (en) * | 2018-09-17 | 2019-03-12 | 佳化化学科技发展（上海）有限公司 | A kind of application of Mannich base in Flame retardant polyurethane material |
| 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 |
| CN111235883A (en) * | 2020-03-22 | 2020-06-05 | 向自嫒 | Anti-wrinkle modified cotton fiber and preparation method thereof |
| CN112442894A (en) * | 2020-11-02 | 2021-03-05 | 苏州大学 | Preparation method of durable flame-retardant silk product |
| CN113201948A (en) * | 2021-05-19 | 2021-08-03 | 青岛大学 | Method for improving cotton fabric dyeing and anti-bacterial and anti-wrinkling performances through chemical modification |
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