CN105177995A - Preparation method for anti-bacteria pure cotton fabric - Google Patents
Preparation method for anti-bacteria pure cotton fabric Download PDFInfo
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- CN105177995A CN105177995A CN201510626292.4A CN201510626292A CN105177995A CN 105177995 A CN105177995 A CN 105177995A CN 201510626292 A CN201510626292 A CN 201510626292A CN 105177995 A CN105177995 A CN 105177995A
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- 239000004744 fabric Substances 0.000 title claims abstract description 98
- 229920000742 Cotton Polymers 0.000 title claims abstract description 85
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 229920000642 polymer Polymers 0.000 claims abstract description 32
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 30
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 25
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 23
- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 22
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 22
- 239000006260 foam Substances 0.000 claims abstract description 20
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 13
- 229910052709 silver Inorganic materials 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims abstract description 12
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010021 flat screen printing Methods 0.000 claims abstract description 7
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 52
- 239000002131 composite material Substances 0.000 claims description 32
- 150000003254 radicals Chemical class 0.000 claims description 32
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- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 7
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- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical group CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000006277 sulfonation reaction Methods 0.000 claims description 5
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 4
- 230000008961 swelling Effects 0.000 claims description 4
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 3
- RBWNDBNSJFCLBZ-UHFFFAOYSA-N 7-methyl-5,6,7,8-tetrahydro-3h-[1]benzothiolo[2,3-d]pyrimidine-4-thione Chemical compound N1=CNC(=S)C2=C1SC1=C2CCC(C)C1 RBWNDBNSJFCLBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 2
- KKKDGYXNGYJJRX-UHFFFAOYSA-M silver nitrite Chemical compound [Ag+].[O-]N=O KKKDGYXNGYJJRX-UHFFFAOYSA-M 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims 1
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract description 2
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
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- 238000012360 testing method Methods 0.000 description 5
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- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
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- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a preparation method for an anti-bacteria pure cotton fabric. The preparation method comprises the following steps that 4-17 g of sulfonated poly ether ether ketone, 7-19 g of hydrogen atom donor polymers, 1.8-11.3 wt% of cross-linking agents, an appropriate amount of acetic acid for regulating the pH value of finishing liquor to 2-5 and the balance deionized water are mixed into 1 kg of solutions; a pure cotton fabric is coated with the finishing liquor on a flat screen printing machine; the fabric is pre-dried in a drying oven with the temperature of 100 DEG C for 10-25 min; the fabric is baked in a baking machine with the temperature of 160 DEG C for 35-80 s; the fabric is coated with foam finishing liquor containing silver salt through a foam finishing method, and then vacuum drying is performed on the fabric; the fabric is placed in an photochemical reactor and radiated with 350-nm ultraviolet light to reduce silver ions to generate silver nanoparticles, and the anti-bacteria pure cotton fabric is prepared. The anti-bacteria pure cotton fabric is soft in handfeel and excellent in anti-bacteria property, overcomes the defect that the anti-bacteria property gradually becomes worse due to problems such as silver ion dispersion and migration of a traditional nano-silver anti-bacteria fabric and can be applied to the field of anti-bacteria protection suits.
Description
Technical field
The present invention relates to a kind of preparation method of antibacterial pure-cotton fabric, is function textile field.
Background technology
In daily life, people inevitably touch various microorganism, these microorganisms under adapt circumstance can promptly growth and breeding, spread disease, contaminated environment, affect the physical and mental health of people, therefore antibacterial material is widely used in the daily textiless such as nonwoven fabric, underwear, footgear, towel, bedding and bunting.Along with the development of society, people more and more favor antibacterial function clothes, also more and more higher to its requirement, and the antiseptic of employing not only wants efficient, safety, but also environmentally friendly, and efficient, durable and safe antiseptic exploitation comes into one's own day by day.Therefore, the antibiotic finish research of textiles is carried out just highly significant.
Desirable antibiotic finish and technique thereof should meet the following conditions: nontoxic, do not cause allergic or uncomfortable; Do not affect properties of textile or outward appearance; Can be compatible and resistance toly repeatedly to wash with traditional machining processes, finishing technique must be environmentally friendly, and still keep the built-in function of finishing agent after arrangement, the product arranged has durability and the function retained required for fabric and wearability.Namely, while imparting antibacterial textile function, the feature of environmental protection of security to human body and technical process be considered.
Antiseptic refers to and can within a certain period of time, make the growth of certain micro-organisms (bacterium, fungi, saccharomycete, algae and virus etc.) or breeding remain on chemical substance necessary below horizontal.
Antiseptic is mainly divided into the large class of organic, mineral-type and natural class 3.
Organic system antiseptic technology maturation, price is also relatively cheap, but its poor chemical stability, thermo-labile; Heat, light or water etc. are volatilization easily, is difficult to realize long-acting; Easy decomposition failure under the high temperature of many high polymers, high pressure, high shear processing conditions, even produces poisonous catabolite.
Natural antibacterial agent mainly contains plant natural antibacterial agent and the large class of animal class natural antibacterial agent two, and its research is still in the starting stage.
Apply be mostly inorganic and organic antiseptic in current production, due to the advantage of mineral-type antiseptic uniqueness, become now the focus of antiseptic research, it represent the developing direction of antiseptic, have huge Application and Development potentiality and good development prospect.Silver-series antibacterial agent, as the representative of inorganic antibacterial system, is used by extensive industrialization, and after especially nanometer technology reaches its maturity, the silver-series antibacterial agent of nm regime becomes the focus of research.Nano Silver series antibacterial agent comprises: nano-silver powder antiseptic, loaded nano silver powder antiseptic, nano silver composite antibacterial agent.These nano-powders itself are nontoxic, tasteless, heat-resistant stability is good, have unique anti-microbial property.But this few class antiseptic exists Nano silver grain easily to be assembled, moves and disperse the deficiencies such as uneven.
If generate stable silver atoms particulate layer as required on the top layer of textiles, then can overcome above-mentioned deficiency and defect, the antibiotic property of textiles can greatly be improved.
Summary of the invention
The object of the invention is to: the preparation method that a kind of antibacterial pure-cotton fabric is provided, to overcome the deficiency of existing nano silver antimicrobials performance.
For achieving the above object, the present invention is achieved through the following technical solutions:
A preparation method for antibacterial pure-cotton fabric, comprises the following steps:
(1) photic free radical macromolecule composite finishing liquid is prepared:
Every 1 kilogram of photic free radical macromolecule composite finishing liquid consists of the following composition: sulfonated polyether-ether-ketone 4 ~ 17g; Hydrogen donors polymer 7 ~ 19g; Crosslinking agent 1.8 ~ 11.3wt% (crosslinking agent weight accounts for the percentage of sulfonated polyether-ether-ketone and hydrogen donors total polymer weight); Proper amount of acetic acid regulates dressing liquid pH value to 2 ~ 5; Surplus is deionized water;
Preparation steps: described sulfonated polyether-ether-ketone, portions of de-ionized water are dropped in 3 liters of stirred vessels, is under agitation heated to 50 DEG C, dissolves, form solution A; In 3 liters of stirred vessels, add the hydrogen donors polymer of ormal weight and remaining deionized water, stir after making polymer fully swelling, be heated to 85 DEG C, dissolve, form solution B; Solution B is added solution A, is fully uniformly mixed, add appropriate acetic acid, after 5min, add the crosslinking agent of ormal weight;
(2) pure-cotton fabric applies composite finishing liquid, preliminary drying, bakes:
Coating composite finishing liquid: arbitrary surface of pure-cotton fabric on flat screen printing machine with the photic free radical macromolecule composite finishing liquid that scraper coating step (1) is prepared;
Preliminary drying: pure-cotton fabric preliminary drying 10 ~ 25min in the baking oven of 100 DEG C of coating dressing liquid;
Bake: pre-baked pure-cotton fabric bakes 35 ~ 80s in 160 DEG C of bakers;
(3) pure-cotton fabric coating silver salt:
Adopt the photic free radical macromolecule resin surface coating of the pure-cotton fabric fabric of foam finishing method after baking containing silver salt foam finishing liquid, and vacuumize;
Consist of containing silver salt foam dope: containing 8 grams of lauryl sodium sulfate, 5 grams of neopelexes, 10 grams of polyvinyl alcohol, silver salt 12 grams in 1 kilogram of stoste, surplus is deionized water, and polyvinyl alcohol plays a part stable foam.
(4) generation of silver nano-grain:
Pure-cotton fabric after vacuumize in step (3) is placed in photochemical reactor, adopts 350nm ultraviolet light to irradiate, silver ion reduction is generated silver nano-grain, be prepared into a kind of antibacterial pure-cotton fabric.
Described sulfonated polyether-ether-ketone sulfonation degree is 70 ~ 90%.
Described hydrogen donors polymer is polymine or polyvinyl alcohol.
Described crosslinking agent is epoxychloropropane or glutaraldehyde; When hydrogen donors polymer is polyvinyl alcohol, crosslinking agent is glutaraldehyde; When hydrogen donors polymer is polymine, crosslinking agent is epoxychloropropane.Polyvinyl alcohol (PVA) is hydrogen donors, glutaraldehyde (GA) for crosslinking agent time, 1 glutaraldehyde molecules there are 2 aldehyde radicals, acetal and hemiacetal can be formed with the hydroxyl on the large molecule of PVA or the hydroxyl on cotton fiber, PVA can be cross-linked on cotton fiber and film forming (comprising being cross-linked of crosslinked and PVA between PVA and cotton fiber); When polymine (PEI) is hydrogen donors, epoxychloropropane is crosslinking agent, epoxide group and cotton fiber are cross-linked film forming (comprising being cross-linked of crosslinked and PEI between PEI and cotton fiber).
Described silver salt is a kind of in silver nitrate, silver nitrite, silver perchlorate.
In described step (3), vacuum drying pressure is-70 ~-90KPa, the time is 3 ~ 4h.
In described step (4), the UV-irradiation time is 3 ~ 6h.
The applied amount of photic free radical macromolecule composite finishing liquid on pure-cotton fabric surface be 50 ~ 95%, be 30 ~ 54% containing the applied amount of silver salt foam finishing liquid.
Applied amount is the percentage being applied to dressing liquid weight on pure-cotton fabric and the weight of pure-cotton fabric own.Before applying dressing liquid, pure-cotton fabric weighs A; Apply pure-cotton fabric heavy B, applied amount=(B-A)/A*100% after after dressing liquid.
According to the pattern that will be formed, time implementation step (4), light screening material can be covered not needing the surface location generating metallic particles, after illumination, not covering light screening material place generation silver nano-grain.
Foam finishing process technology is the energy-saving technique of typical low feeding, ensure under liquid measure condition, chemical agent to be distributed minimum uniformly, meet green developing direction of producing completely, be mainly used in cotton, chemical fibre and BLENDED FABRIC and be used as all kinds of foam finishings such as starching, softness, upper resin.
Flat screen printing machine applies photic free radical macromolecule composite finishing liquid with scraper, the applied amount of dressing liquid can be controlled, and pure-cotton fabric surface can be made to apply dressing liquid that is even, equivalent, avoid the bad phenomenon that band liquid is irregular, feel is uneven that dip finishing liquid method produces; Silver salt is applied to photic free radical macromolecule resin surface with foam finishing method, can control foam applied amount saving medicament stock can make again silver salt uniformly distribute, can ensure that the metallic after silver ion reduction is evenly distributed, that avoids infusion process to produce is irregular.
The primary synthetic methods of metal nanoparticle comprises Physical, traditional chemical reduction method, electrochemical process, photochemical method and biological synthesis process etc.Photochemical method also claims photoreduction met hod or light inducible, its general principle utilizes the light of different wave length (ultraviolet, white light, blue light, green glow, orange light etc.) to irradiate, make in solution or on polymeric matrix, to produce the very strong aqueous electron of reducibility or reductive free radical, torpescence or more active reducing metal ions are become metallic atom.
Light inducible prepares the typical one-step synthesis of polymer base inorganic nano metallic composite at present, one-step synthesis at normal temperatures and pressures, simply effectively, and process and controlled shape, and nano-phase particulate can be made to be uniformly distributed; Meanwhile, by controlled light position, effectively can control the arrangement pattern of metallic particles, prepare the flexible antibiotic facing material of Polymers.Namely the present invention adopts this method.
Sulfonated polyether-ether-ketone (SPEEK) is containing benzophenone (BP) group, it can form n under light-initiated, π * excited triplet state, higher activity is had to the hydrogen atom in other compound, as it and polyvinyl alcohol (PVA) coexists time, PVA is as hydrogen donors, and can form two kinds of polymeric alcohol free radicals under light-initiated, course of reaction is shown below:
In formula (2), the Alpha-hydroxy free radical of PVA also can form new SPEEK free radical with second polyphenyl ketone radical reaction.Therefore, according to this principle, we also can utilize the SPEEK radical pair metal ion of photic formation to reduce, and at the SPEEK/PVA polymeric film surface of fabric face, monovalence silver ion reduction are become silver atoms, prepare evenly distributed nano metal nano-Ag particles.
SPEEK·+Ag
+→Ag+SPEEK+H
+(3)
In the present invention, after silver salt being applied to SPEEK polymer surfaces, Ag
+ion with containing sulfonate radical (-SO
3h) H in SPEEK polymer
+complete ion-exchange, Ag
+ionic adsorption is to SPEEK polymer surfaces, and by the irradiation of ultraviolet light, the SPEEK free radical of generation is by Ag
+ion reduction becomes silver atoms.
The present invention, at the transparent polymer film of the surface-crosslinked formation of pure-cotton fabric containing BP group photosensitizer, by light-initiated formation high molecular free radical reducing metal ion, thus generates metal nanoparticle at fibrous material surface; The hydrogen ion of silver ion in fibrous material surface and film is uniformly distributed by ion-exchange, is conducive to generating homodisperse silver nano-grain after photoinduction; Silver nano-grain is uniform and stable in the growth on cotton fibre material surface, nano particle diameter, arrange controlled; Flat screen printing machine applies photic free radical macromolecule composite finishing liquid, foam finishing applying silver salt with scraper, ensure that nano silver particles in pure-cotton fabric surface distributed evenly, firmly, avoid the phenomenons such as Nano silver grain is easily assembled, migration and occur.
Antibacterial pure-cotton fabric prepared by the inventive method is soft, anti-microbial property is excellent, overcome conventional nano silver antibiotic facing material the defect such as to be deteriorated gradually because of anti-microbial property that the problem such as dispersion, migration of nano silver particles causes, antibacterial, protective clothing field can be widely used in.
Accompanying drawing explanation
Fig. 1 is preparation process and the principle of antibacterial cotton fabric of the present invention;
Fig. 2 is the anti-microbial property of untrimmed pure-cotton fabric;
Fig. 3 is the anti-microbial property of the pure-cotton fabric that preparation method of the present invention obtains.
specific implementation method:
Following embodiment, only illustrates, is not only, so all within the scope of the present invention or doing the change similar to the present invention is all contained within the present invention.
A preparation method for antibacterial pure-cotton fabric, comprises the following steps:
(1) photic free radical macromolecule composite finishing liquid is prepared:
Sulfonated polyether-ether-ketone, hydrogen donors polymer, crosslinking agent, proper amount of acetic acid regulate dressing liquid pH value to 2 ~ 5; Surplus is deionized water wiring solution-forming;
(2) pure-cotton fabric applies composite finishing liquid, preliminary drying, bakes:
After pure-cotton fabric applies photic free radical macromolecule composite finishing liquid, preliminary drying, to bake;
(3) pure-cotton fabric coating silver salt:
The photic free radical macromolecule resin surface coating of pure-cotton fabric fabric is containing silver salt foam finishing liquid, and vacuumize;
(4) generation of silver nano-grain:
Adopt 350nm ultraviolet light to irradiate, silver ion reduction is generated silver nano-grain, is prepared into a kind of antibacterial pure-cotton fabric.
The preparation process of antibacterial cotton fabric of the present invention and principle are as shown in Figure 1.
Polyether-ether-ketone (PEEK, VictrexPEEK-450G), technical grade, ICI company of Britain.
Sulfonated polyether-ether-ketone is existing product, buy by market, also can make by oneself, its preparation method is: by PEEK pellet at 100 DEG C, dry 10h under vacuum, then taking 4g is dissolved in the 200mL concentrated sulfuric acid (98%) at 50 DEG C, vigorous stirring, after continuing for some time (control sulfonation degree), reaction solution is poured in the frozen water of at least 5 times of volumes, Keep agitation 1h, leave standstill 24h, sediment through repeatedly wash, centrifugal, filter after, add appropriate NaOH solution adjust ph to 7.Product S PEEK is finally in 50 DEG C of vacuumize 24h.Take a certain amount of SPEEK, it is dissolved in completely in deuterated dimethyl alum, be mixed with the polymer solution that mass fraction is 2%-5%, AVANCEAV400MHzDigitalFT-NMR nuclear magnetic resonance chemical analyser is adopted to carry out nmr analysis to it, sulfonation degree computational methods document: Dong Yunfeng, Tan Xiaolin, Guo Qiang, Deng. the mensuration of sulfonated polyether-ether-ketone sulfonation degree and the impact [J] on PEM performance thereof. Physico-chemical tests-physics fascicle, 2011 (47): 535-538.
Wash durability is tested:
The antibacterial pure-cotton fabric prepared by the inventive method is placed in the soap lye of soap flakes 5g/L, bath raio 1: 50, soap 30min at 40 DEG C, then cold wash 10min, dries, and surveys the anti-microbial property of fabric.
The pliability test of fabric:
The circular specimen of clip diameter 10cm, takes its quality, and records thickness, and adopt NucybertekPhabromet Fabric Style instrument, carry out the test of pliability, 3 samples surveyed by often kind of sample, and the test result mean value of 3 samples is the test result of this sample.
Fabric anti-microbial property is tested:
With reference to FZ/T01021-92 " antibacterial fabric performance and test method " test.
Embodiment 1
A preparation method for antibacterial pure-cotton fabric, comprises the following steps:
(1) photic free radical macromolecule composite finishing liquid is prepared:
Every 1 kilogram of photic free radical macromolecule composite finishing liquid consists of the following composition: degree of etherification falling is the sulfonated polyether-ether-ketone 4g of 78%; Hydrogen donors polymer 7g; Crosslinking agent 1.8wt% (crosslinking agent weight accounts for the percentage of sulfonated polyether-ether-ketone and hydrogen donors total polymer weight); Proper amount of acetic acid regulates dressing liquid pH value to 5; Surplus is deionized water; Hydrogen donors polymer is polyvinyl alcohol, crosslinking agent is glutaraldehyde;
Preparation steps: sulfonated polyether-ether-ketone, 400mL deionized water are dropped in 3 liters of stirred vessels, is under agitation heated to 50 DEG C, dissolves, form solution A; In 3 liters of stirred vessels, add the hydrogen donors polymer of ormal weight and remaining deionized water, stir after making polymer fully swelling, be heated to 85 DEG C, dissolve, form solution B; Solution B is added in solution A, be fully uniformly mixed, add appropriate acetic acid, after 5min, add the crosslinking agent of ormal weight;
(2) pure-cotton fabric applies composite finishing liquid, preliminary drying, bakes:
Coating composite finishing liquid: arbitrary surface of pure-cotton fabric on flat screen printing machine with the photic free radical macromolecule composite finishing liquid that scraper coating step (1) is prepared; Dressing liquid applied amount is 50%;
Preliminary drying: pure-cotton fabric preliminary drying 10min in the baking oven of 100 DEG C of coating dressing liquid;
Bake: pre-baked pure-cotton fabric bakes 80s in 160 DEG C of bakers;
Bake: pre-baked pure-cotton fabric bakes 80s in 160 DEG C of bakers;
(3) pure-cotton fabric coating silver salt:
Adopt the photic free radical macromolecule resin surface coating of the pure-cotton fabric fabric of foam finishing method after baking containing silver salt foam finishing liquid, and vacuumize, vacuum drying pressure is-70KPa, the time is 4h; Silver salt applied amount is 30%;
Consist of containing silver salt foam dope: containing 8 grams of lauryl sodium sulfate, 5 grams of neopelexes, 10 grams of polyvinyl alcohol, silver salt 12 grams in 1 kilogram of stoste, surplus is deionized water.
(4) generation of silver nano-grain:
Pure-cotton fabric after vacuumize in step (3) is placed in photochemical reactor, adopts 350nm UV-irradiation 6h, silver ion reduction is generated silver nano-grain, is prepared into a kind of antibacterial pure-cotton fabric.
Comparative example:
A preparation method for photic free radical macromolecule composite finishing pure-cotton fabric, comprises the following steps:
(1) photic free radical macromolecule composite finishing liquid is prepared:
Every 1 kilogram of photic free radical macromolecule composite finishing liquid consists of the following composition: degree of etherification falling is the sulfonated polyether-ether-ketone 9g of 85%; Hydrogen donors polymer 12g; Crosslinking agent 7wt% (crosslinking agent weight accounts for the percentage of sulfonated polyether-ether-ketone and hydrogen donors total polymer weight); Proper amount of acetic acid regulates dressing liquid pH to 4; Surplus is deionized water; Hydrogen donors polymer is polyvinyl alcohol, crosslinking agent is glutaraldehyde;
Preparation steps: described sulfonated polyether-ether-ketone, portions of de-ionized water are dropped in 3 liters of stirred vessels, is under agitation heated to 50 DEG C, dissolves, form solution A; In 3 liters of stirred vessels, add the hydrogen donors polymer of ormal weight and remaining deionized water, stir after making polymer fully swelling, be heated to 85 DEG C, dissolve, form solution B; Solution B is added in solution A, be fully uniformly mixed, add appropriate acetic acid, after 5min, add the crosslinking agent of ormal weight;
(2) pure-cotton fabric applies composite finishing liquid, preliminary drying, bakes:
Coating composite finishing liquid: arbitrary surface of pure-cotton fabric on flat screen printing machine with the photic free radical macromolecule composite finishing liquid that scraper coating step (1) is prepared; Dressing liquid applied amount is 75%;
Preliminary drying: pure-cotton fabric preliminary drying 10min in the baking oven of 100 DEG C of coating dressing liquid;
Bake: pre-baked pure-cotton fabric bakes 80s in 160 DEG C of bakers, obtained photic free radical macromolecule composite finishing pure-cotton fabric.
Composition of raw materials and the process conditions of embodiment 2-6 are as shown in table 1, and all the other process are with embodiment 1.
The composition of raw materials of table 1 embodiment 2-6 and technique
Pure-cotton fabric former state, embodiment and comparative example the performance test results are as shown in table 2:
Table 2 each embodiment fabric performance test result
As known from Table 2, pure-cotton fabric through photic free radical macromolecule composite finishing has certain anti-microbial property, the antibacterial pure-cotton fabric antibiotic rate that preparation method of the present invention obtains reaches more than 99%, and the anti-microbial property display that the pure-cotton fabric that the untrimmed pure-cotton fabric of Fig. 2, Fig. 3 and preparation method of the present invention obtain records by FZ/T01021-92 " antibacterial fabric performance and test method ", the antibacterial effect of the antibacterial pure-cotton fabric of the present invention is obvious, even if after 15 washings, anti-microbial property is still excellent.
Claims (10)
1. a preparation method for antibacterial pure-cotton fabric, comprises the following steps:
(1) photic free radical macromolecule composite finishing liquid is prepared:
Every 1 kilogram of photic free radical macromolecule composite finishing liquid consists of the following composition: sulfonated polyether-ether-ketone 4 ~ 17g; Hydrogen donors polymer 7 ~ 19g; Crosslinking agent 1.8 ~ 11.3wt%; Proper amount of acetic acid regulates dressing liquid pH to 2 ~ 5; Surplus is deionization;
Preparation steps: described sulfonated polyether-ether-ketone, portions of de-ionized water are dropped in 3 liters of stirred vessels, is under agitation heated to 50 DEG C, dissolves, form solution A; In 3 liters of stirred vessels, add the hydrogen donors polymer of ormal weight and remaining deionized water, stir after making polymer fully swelling, be heated to 85 DEG C, dissolve, form solution B; Solution B is added solution A, is fully uniformly mixed, add appropriate acetic acid, after 5min, add the crosslinking agent of ormal weight;
(2) pure-cotton fabric applies composite finishing liquid, preliminary drying, bakes:
Coating composite finishing liquid: arbitrary surface of pure-cotton fabric on flat screen printing machine with the photic free radical macromolecule composite finishing liquid that scraper coating step (1) is prepared;
Preliminary drying: pure-cotton fabric preliminary drying 10 ~ 25min in the baking oven of 100 DEG C of coating dressing liquid;
Bake: pre-baked pure-cotton fabric bakes 35 ~ 80s in 160 DEG C of bakers;
(3) pure-cotton fabric coating silver salt:
Adopt the photic free radical macromolecule resin surface coating of the pure-cotton fabric fabric of foam finishing method after baking containing silver salt foam finishing liquid, and vacuumize;
Consist of containing silver salt foam dope: containing 8 grams of lauryl sodium sulfate, 5 grams of neopelexes, 10 grams of polyvinyl alcohol, silver salt 12 grams in 1 kilogram of stoste, surplus is deionized water.
(4) generation of silver nano-grain:
Pure-cotton fabric after vacuumize in step (3) is placed in photochemical reactor, adopts 350nm ultraviolet light to irradiate, silver ion reduction is generated silver nano-grain, be prepared into a kind of antibacterial pure-cotton fabric.
2. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: described sulfonated polyether-ether-ketone sulfonation degree is 70 ~ 90%.
3. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: described hydrogen donors polymer is polymine or polyvinyl alcohol.
4. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: described crosslinking agent is epoxychloropropane or glutaraldehyde.
5. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, it is characterized in that: described hydrogen donors polymer is polyvinyl alcohol, described crosslinking agent is glutaraldehyde.
6. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, it is characterized in that: described hydrogen donors polymer is polymine, described crosslinking agent is epoxychloropropane.
7. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: described silver salt is a kind of in silver nitrate, silver nitrite, silver perchlorate.
8. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: in described step (3), vacuum drying pressure is-70 ~ 90KPa, the time is 3 ~ 4h.
9. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: in described step (4), the UV-irradiation time is 3 ~ 6h.
10. the preparation method of a kind of antibacterial pure-cotton fabric according to claim 1, is characterized in that: the applied amount of photic free radical macromolecule composite finishing liquid on pure-cotton fabric surface be 50 ~ 95%, be 30 ~ 54% containing the applied amount of silver salt foam finishing liquid.
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| CN113718528A (en) * | 2021-08-24 | 2021-11-30 | 中国科学院山西煤炭化学研究所 | Sulfonated polyaryletherketone water sizing agent and preparation method and application thereof |
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| CN115058887A (en) * | 2022-07-22 | 2022-09-16 | 武汉纺织大学 | Super-hydrophobic antibacterial textile and preparation method thereof |
| CN115226726A (en) * | 2022-08-17 | 2022-10-25 | 北京爱奇尔白依科技有限公司 | Antibacterial and antiviral preparation and isolation suit prepared by using same |
| CN115226726B (en) * | 2022-08-17 | 2023-11-24 | 北京爱奇尔白依科技有限公司 | Antibacterial and antiviral preparation and isolation suit prepared by using antibacterial and antiviral preparation |
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