CN110670194B - Preparation method of antibacterial yarn - Google Patents
Preparation method of antibacterial yarn Download PDFInfo
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- CN110670194B CN110670194B CN201910972027.XA CN201910972027A CN110670194B CN 110670194 B CN110670194 B CN 110670194B CN 201910972027 A CN201910972027 A CN 201910972027A CN 110670194 B CN110670194 B CN 110670194B
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- fiber
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- cotton
- treatment
- soybean protein
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 111
- 229920000742 Cotton Polymers 0.000 claims abstract description 50
- 108010073771 Soybean Proteins Proteins 0.000 claims abstract description 48
- 235000019710 soybean protein Nutrition 0.000 claims abstract description 48
- 238000002791 soaking Methods 0.000 claims abstract description 26
- 229910052709 silver Inorganic materials 0.000 claims abstract description 24
- 239000004332 silver Substances 0.000 claims abstract description 24
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000009960 carding Methods 0.000 claims abstract description 19
- XPFAJCSMHOQBQB-UHFFFAOYSA-N 2-aminoacetic acid;nitric acid Chemical compound O[N+]([O-])=O.NCC(O)=O XPFAJCSMHOQBQB-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 229920000297 Rayon Polymers 0.000 claims abstract description 15
- 229920000728 polyester Polymers 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 210000002268 wool Anatomy 0.000 claims abstract description 6
- 208000012886 Vertigo Diseases 0.000 claims abstract description 5
- 238000009987 spinning Methods 0.000 claims abstract description 5
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 230000003385 bacteriostatic effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 12
- 229910001923 silver oxide Inorganic materials 0.000 claims description 12
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 239000004471 Glycine Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 229960000583 acetic acid Drugs 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 4
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000012362 glacial acetic acid Substances 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 4
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005457 ice water Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 12
- 238000005406 washing Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 6
- 230000000845 anti-microbial effect Effects 0.000 description 5
- 238000000338 in vitro Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- -1 silver ions Chemical class 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 238000002166 wet spinning Methods 0.000 description 3
- 108010082495 Dietary Plant Proteins Proteins 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 235000018102 proteins Nutrition 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007407 health benefit Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
-
- 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
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- 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
- D06M13/123—Polyaldehydes; Polyketones
-
- 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
- D06M13/322—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 nitrogen
- D06M13/325—Amines
- D06M13/342—Amino-carboxylic acids; Betaines; Aminosulfonic acids; Sulfo-betaines
-
- 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
-
- 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
-
- 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
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/20—Protein-derived artificial fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
A preparation method of antibacterial yarn comprises the steps of using bleached soybean protein fiber as a raw material, carrying out medium-temperature soaking, then carrying out quick cooling, carrying out treatment by using glycine nitrate chelated silver soaking solution and nano titanium dioxide sol once after the quick cooling, and carrying out wool blending, cotton carding and pre-drawing treatment with polyester fiber filament and viscose fiber after the treatment to prepare antibacterial fiber pre-drawing; and the cotton fiber is used for preparing cotton fiber pre-drawing; and carrying out proportional cotton carding on the antibacterial fiber pre-drawing and the cotton fiber pre-drawing to obtain mixed cotton carding raw slivers, and then carrying out drawing, roving and spinning treatment in sequence, and carrying out automatic doffing treatment to obtain the finished antibacterial yarn. The invention can be applied to various antibacterial fiber application schemes in daily life of people, and can also be used for preparing antibacterial fabrics, and the fabrics can keep better and longer antibacterial performance.
Description
Technical Field
The invention relates to a yarn preparation technology in the technical field of textile materials, in particular to a preparation method of antibacterial yarns.
Background
With the improvement of living standard of people, the requirements of people on consumer goods are higher and higher, wherein, the requirements on fabric products are developed from the initially pursued warm keeping to the functional directions of comfort, beauty, health benefits and the like, and functional textiles are produced at the same time; various functional fabric products are continuously developed, wherein, for the antibacterial fabric, people need to have better antibacterial performance besides the moisture absorption and sweat releasing performance of common fabrics.
The most common and effective method for obtaining the antibacterial yarn in the prior art is to blend and make the antibacterial fiber into the yarn. The principle is that the antibacterial fiber and the common fiber are blended according to a certain proportion, and the corresponding antibacterial fiber is obtained mainly by a natural antibacterial fiber, a melt spinning method, a wet spinning method, a surface metallization finishing method and an antibacterial agent soaking method. The natural antibacterial fibers have a common antibacterial effect, and a good antibacterial effect can be obtained only by using the natural antibacterial fibers in a large proportion; the antibacterial fiber obtained by the melt spinning method and the wet spinning method has limited antibacterial substances on the surface of the fiber, and the antibacterial fiber has enough content when forming yarn, so that the performance of the whole yarn and fabric is greatly influenced by the antibacterial fiber, and meanwhile, the hand feeling and style of the fabric are damaged due to the use of chemical reagents, and even secondary damage is caused to the skin; the surface metallization finishing method can realize good antibacterial performance by using less metal, but the metallized surface is easy to oxidize, the antibacterial performance is in a rapid reduction state along with the increase of the service time, and the durable antibacterial performance cannot be maintained; the antimicrobial soaking method is generally not resistant to washing, most of the antimicrobial is lost during the washing process, so that the antimicrobial effect is rapidly reduced, and the requirement of continuous antimicrobial performance that the antimicrobial effect is still better under multiple washing effects is very far away.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a preparation method of antibacterial yarn, so as to solve the defects in the technical background.
The technical problem solved by the invention is realized by adopting the following technical scheme:
the preparation method of the antibacterial yarn specifically comprises the following operation steps:
s1, selecting bleached soybean protein fibers as raw materials, pretreating the bleached soybean protein fibers, adding the bleached soybean protein fibers into warm water at the temperature of 50-60 ℃ for soaking at a constant temperature for 1-2 h, taking out the fibers, performing quick cooling treatment, adding the bleached soybean protein fibers subjected to the quick cooling treatment into glycine nitrate chelated silver soaking solution for soaking for 6-8 h, then putting the fibers into nano titanium dioxide sol, performing ultrasonic dispersion treatment for 20-30 min at the equipment power of 300-400W, extruding redundant sol, flushing with running water for 10-20S, and drying with hot air to obtain the bleached soybean protein antibacterial fibers;
s2, selecting 50-60 wt% of bleached soybean protein antibacterial fiber, 17-23 wt% of polyester fiber filament and 20-30 wt% of viscose fiber as raw materials, wherein the total proportion of the bleached soybean protein fiber, the polyester fiber filament and the viscose fiber is 100 wt%, and then performing wool making, cotton carding and pre-drawing treatment in sequence to obtain antibacterial fiber pre-drawing strips;
s3, carrying out cotton grabbing, cotton opening, cotton mixing and coiling treatment on the cotton fibers in sequence to obtain cotton fiber pre-drawing strips;
s4, processing the antibacterial fiber pre-drawing and the cotton fiber pre-drawing on a carding machine according to the ratio of 1: 6-1: 8 to obtain mixed cotton carding sliver, and automatically doffing the mixed cotton carding sliver after drawing, roving and spinning treatment to obtain the finished antibacterial yarn.
In a further limitation, in the step S1, the rapid cooling treatment is performed by immersing in ice water for 120 to 150min or maintaining at a temperature of-18 to-25 ℃ for 30 to 50 min.
In step S1, the method for preparing the glycine nitrate chelated silver soaking solution includes:
weighing 10 parts by mass of glycine and 15 parts by mass of silver oxide as raw materials, completely dissolving the glycine by using 300-500 parts by mass of deionized water, adding dilute nitric acid to adjust the pH value of the solution to be below 4.2, slowly adding the silver oxide, performing ultrasonic dispersion under the equipment power of 300-400W, slowly adjusting the pH value to be neutral, and filtering insoluble substances to obtain a glycine nitrate chelated silver soaking solution.
In step S1, the method for preparing the titania sol includes:
adding 9 parts by mass of butyl titanate and 12 parts by mass of glacial acetic acid into 150-300 parts by mass of deionized water, uniformly stirring, adding dilute nitric acid, adjusting the pH value of the solution to be below 5, stirring and reacting for 30-40 min at the temperature of 40-50 ℃, naturally cooling, and aging to obtain the titanium dioxide sol.
As a further limitation, in step S2, the polyester fiber filaments and the viscose fibers may be pretreated with glutaraldehyde to improve the antibacterial effect of the antibacterial fiber pre-drawing.
In the invention, the bleached soybean protein fiber is prepared by using soybean protein as a raw material and carrying out wet spinning. The fabric has good physical and chemical properties, low single fiber fineness, higher strength than natural fibers such as wool, cotton, silk and the like, good spinnability and suitability for developing high-grade fabrics with high count and high density; the outer layer of the soybean protein fiber is basically protein and contains a plurality of amino acids necessary for human body, and the health care function of the soybean protein fiber is self-evident. Meanwhile, the bleached soybean protein fiber is used as a vegetable protein fiber, the bleached soybean protein fiber has the characteristics of soybean protein, the soybean protein fiber is soaked at constant temperature, the surface of the soybean protein fiber can expand, the internal structure of the vegetable protein can be damaged through rapid cooling at the moment, the internal tissue structure of the fiber is changed, oil bodies are induced to be fused with each other, partial protein bodies of the fiber are damaged, and the soybean protein fiber is gathered with the oil bodies, so that large gaps and channels appear in the internal system of the bleached soybean protein fiber, the chelated silver is retained and fixed through the gaps and the channels, the stability of the surface of the fiber is realized through titanium dioxide sol, the chelated silver is prevented from being separated out, and the antibacterial property of the chelated silver ions is further consolidated.
However, the tenacity of the bleached soybean protein fiber damaged by rapid cooling is reduced, the bleached soybean protein fiber is easy to become brittle and lose elasticity, and meanwhile, the surface hand feeling is also influenced, so that when the bleached soybean protein fiber is used for preparing the bleached soybean protein antibacterial fiber, a certain proportion of polyester fiber filaments are needed to be matched to maintain the stability and elasticity, and the viscose fiber is used for compensating the hand feeling defect, so that the bleached soybean protein fiber is closer to the cotton thread hand feeling.
Has the advantages that: the antibacterial yarn prepared by the preparation method of the antibacterial yarn is endowed with a better fiber antibacterial effect on the basis of basically keeping the fiber characteristics of moisture absorption, heat preservation, moisture preservation and soft and excellent hand feeling of a cotton fiber line, and the fiber is modified to improve the fixity of chelated silver, so that the chelated silver can be fully fixed and adsorbed in the antibacterial yarn, so that the inhibiting effect of chelated silver ions on various pathogenic microorganisms, bacteria and viruses is fully utilized, the washing resistance of the chelated silver ions is effectively improved, the durability of the antibacterial effect can be effectively improved after multiple times of washing, the sanitation on the surface of a textile woven by the yarn is constantly kept, and the diffusion and the propagation of germs are prevented.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining the specific drawings and the embodiments.
In the following examples, it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The first embodiment is as follows:
in this example, the bacteriostatic yarn was prepared according to the following steps:
firstly, preparing glycine nitrate chelated silver soak solution and nano titanium dioxide sol, wherein when the glycine nitrate chelated silver soak solution is prepared, 100g of glycine is weighed, 3kg of deionized water is used for completely dissolving the glycine nitrate chelated silver soak solution, then diluted nitric acid is added to adjust the pH value of the solution to 3.5, then 150g of silver oxide is weighed, the silver oxide is slowly added into the solution according to the amount of 1-3 g per second, the ultrasonic dispersion equipment is used for assisting in the whole process of adding the silver oxide, the power of the ultrasonic dispersion instrument is controlled to be 400W until the silver oxide is completely added, then the pH value of the solution is adjusted to be neutral by using weak base, and insoluble substances are filtered out, so that the glycine nitrate chelated silver soak solution is obtained.
And when preparing the titanium dioxide sol: adding 90g of butyl titanate and 120g of glacial acetic acid into 2kg of deionized water, uniformly stirring, adding dilute nitric acid, adjusting the pH value of the solution to 4.2, stirring and reacting for 32min at the constant temperature of 42 ℃, then cooling and aging to obtain the titanium dioxide sol.
And then adding bleached soybean protein fibers serving as a raw material into a container, soaking the materials in warm water at 60 ℃ for 60min, taking out the materials, soaking the materials in ice water for 150min, draining the water after soaking, then adding the bleached soybean protein fibers subjected to quick cooling treatment into glycine nitrate chelated silver soaking solution, soaking for 8h, putting the soaked bleached soybean protein fibers into nano titanium dioxide sol, performing ultrasonic dispersion treatment for 30min under the condition of 400W output power, extruding redundant sol by a filter press, washing for 15-18S with running water, and drying with hot air at the temperature of 60-65 ℃ to obtain the bleached soybean protein antibacterial fibers.
Taking the bleached soybean protein antibacterial fiber as a raw material, and selecting 55% of the bleached soybean protein antibacterial fiber, 20% of polyester fiber filament and 25% of viscose as raw materials to carry out wool blending, cotton carding and pre-drawing treatment in sequence to obtain antibacterial fiber pre-drawing; meanwhile, the cotton fiber is sequentially processed by cotton grabbing, cotton opening, cotton mixing and coiling to obtain the cotton fiber pre-drawing.
Processing the antibacterial fiber pre-drawing and the cotton fiber pre-drawing on a carding machine according to the ratio of 1:8 to obtain mixed cotton carding sliver, and performing drawing, roving and spinning treatment on the mixed cotton carding sliver in sequence, and then performing automatic doffing treatment to obtain the finished antibacterial yarn.
Example two:
firstly, preparing glycine nitrate chelated silver soak solution and nano titanium dioxide sol, wherein when the glycine nitrate chelated silver soak solution is prepared, 100g of glycine is weighed, 4kg of deionized water is used for completely dissolving the glycine nitrate chelated silver soak solution, then diluted nitric acid is added to adjust the pH value of the solution to 4.0, then 150g of silver oxide is weighed, the silver oxide is slowly added into the solution according to the amount of 3-4 g per second, ultrasonic dispersion equipment is used for assisting in the whole process of adding the silver oxide, the power of an ultrasonic dispersion instrument is controlled to be 350W until the silver oxide is completely added, then the pH value of the solution is adjusted to be neutral by using weak base, and insoluble substances are filtered out, so that the glycine nitrate chelated silver soak solution is obtained.
And when preparing the titanium dioxide sol: adding 90g of butyl titanate and 120g of glacial acetic acid into 2.5kg of deionized water, uniformly stirring, adding dilute nitric acid, adjusting the pH value of the solution to 4.5, stirring and reacting for 35min at the constant temperature of 46 ℃, then cooling and aging to obtain the titanium dioxide sol.
And then adding bleached soybean protein fibers serving as a raw material into a container, soaking the materials in warm water at 55 ℃ for 90min, taking out the materials, keeping the temperature for 40min at the temperature of between 18 ℃ below zero and 25 ℃ below zero, then adding the bleached soybean protein fibers subjected to quick cooling treatment into a glycine nitrate chelated silver soaking solution, soaking the soaked bleached soybean protein fibers for 7h, putting the soaked bleached soybean protein fibers into nano titanium dioxide sol, performing ultrasonic dispersion treatment for 26min under the condition of 350W output power, extruding redundant sol by using a filter press, washing the sol for 18 to 20S with running water, and drying the sol by hot air at the temperature of 56 to 58 ℃ to obtain the bleached soybean protein antibacterial fibers.
Taking the bleached soybean protein antibacterial fiber as a raw material, selecting 60% of bleached soybean protein antibacterial fiber, 20% of polyester fiber filament and 20% of viscose fiber, soaking the polyester fiber filament and the viscose fiber in glutaraldehyde for pretreatment, taking out after soaking for 30-40, drying, taking the soaked and dried polyester fiber and the bleached soybean protein antibacterial fiber as the raw materials, and sequentially performing wool mixing, cotton carding and pre-drawing treatment to obtain antibacterial fiber pre-drawing; meanwhile, the cotton fiber is sequentially processed by cotton grabbing, cotton opening, cotton mixing and coiling to obtain the cotton fiber pre-drawing.
Processing the antibacterial fiber pre-drawing and the cotton fiber pre-drawing on a carding machine according to the ratio of 1:6 to obtain mixed cotton carding sliver, and performing drawing, roving and spinning treatment on the mixed cotton carding sliver in sequence, and then performing automatic doffing treatment to obtain the finished antibacterial yarn.
The bacteriostatic yarns and cotton yarns in the first and second embodiments are spun and woven under the same process conditions, and are respectively used as an experimental group 1 and an experimental group 2, and the cloth woven by the cotton yarns is used as a control group to perform an in vitro bacteriostatic test of common bacterial strains by using a bacteriostatic loop method.
Meanwhile, in order to embody the long-acting bacteriostatic effect of the bacteriostatic yarns, the bacteriostatic yarn woven fabric in the first embodiment and the bacteriostatic yarn woven fabric in the second embodiment are respectively washed for 50 times (40 times of washing in a standard program mode of a washing machine, wherein 20 times of washing powder washing, 20 times of washing liquid washing and 10 times of artificial soap scrubbing) and 100 times (80 times of washing in a standard program mode of a washing machine, wherein 40 times of washing powder washing, 40 times of washing liquid washing and 20 times of artificial soap scrubbing) respectively, and then an in-vitro bacteriostatic test of common bacterial strains is also carried out by utilizing a bacteriostatic ring method.
The bacteriostatic diameter results are shown in the following table:
the tests show that the bacteriostatic yarns of the first embodiment and the second embodiment have obvious in-vitro bacteriostatic effect and obvious bacteriostatic effect on common bacteria in life, and meanwhile, the bacteriostatic effect is still obvious after multiple times of washing.
In addition, in the embodiment, because the bleached soybean protein fiber in the antibacterial yarn is subjected to denaturation treatment, the strength, toughness and hand feeling of the antibacterial yarn are poor, and the polyester fiber filament has the characteristics of high initial modulus, high strength, low possibility of wrinkling of fabric, good heat resistance and dimensional stability, good wear resistance and the like, and also has good gloss; the viscose fiber has better hand feeling and has the antibacterial property, so that the long and short fiber interwoven antibacterial fiber is prepared after the pretreatment is carried out by reasonably distributing the proportion of the viscose fiber to the viscose fiber, the viscose fiber has better antibacterial property, light weight, stiff and smooth texture and soft and glutinous hand feeling, the excellent property of the bleached soybean protein fiber can be highlighted, and the antibacterial yarn can be prepared by single filamentation; the antibacterial yarn with the handfeel of the cotton fiber can be prepared after drawing with the cotton fiber, the characteristics of the polyester cotton yarn and the bleached soybean protein fiber are kept, and the antibacterial yarn can withstand repeated washing and keep the antibacterial characteristic.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The preparation method of the antibacterial yarn is characterized by comprising the following operation steps:
s1, selecting bleached soybean protein fibers as raw materials, pretreating the bleached soybean protein fibers, adding the bleached soybean protein fibers into warm water at the temperature of 50-60 ℃ for soaking at a constant temperature for 1-2 hours, taking out the fibers for quick cooling, adding the bleached soybean protein fibers subjected to quick cooling into a glycine nitrate chelated silver soaking solution for soaking for 6-8 hours, putting the fibers into a nano titanium dioxide sol, performing ultrasonic dispersion treatment for 20-30 minutes under the equipment power of 300-400W, extruding redundant sol, flushing with running water for 10-20 seconds, and drying with hot air to obtain the bleached soybean protein antibacterial fibers, wherein the preparation method of the glycine nitrate chelated silver soaking solution comprises the following steps:
weighing 10 parts by mass of glycine and 15 parts by mass of silver oxide as raw materials, completely dissolving the glycine by using 300-500 parts by mass of deionized water, adding dilute nitric acid to adjust the pH value of the solution to be below 4.2, slowly adding the silver oxide, performing ultrasonic dispersion under the equipment power of 300-400W, slowly adjusting the pH value to be neutral, and filtering insoluble substances to obtain glycine nitrate chelated silver soaking liquid;
the preparation method of the titanium dioxide sol comprises the following steps:
adding 9 parts by mass of butyl titanate and 12 parts by mass of glacial acetic acid into 150-300 parts by mass of deionized water, uniformly stirring, adding dilute nitric acid, adjusting the pH value of the solution to be below 5, stirring and reacting for 30-40 min at the temperature of 40-50 ℃, naturally cooling, and aging to obtain titanium dioxide sol;
s2, selecting 50-60 wt% of bleached soybean protein antibacterial fiber, 17-23 wt% of polyester fiber filament and 20-30 wt% of viscose fiber as raw materials, wherein the total proportion of the bleached soybean protein fiber, the polyester fiber filament and the viscose fiber is 100 wt%, and then performing wool making, cotton carding and pre-drawing treatment in sequence to obtain antibacterial fiber pre-drawing strips;
s3, carrying out cotton grabbing, cotton opening, cotton mixing and coiling treatment on the cotton fibers in sequence to obtain cotton fiber pre-drawing strips;
s4, processing the antibacterial fiber pre-drawing and the cotton fiber pre-drawing on a carding machine according to the ratio of 1: 6-1: 8 to obtain mixed cotton carding sliver, and automatically doffing the mixed cotton carding sliver after drawing, roving and spinning treatment to obtain the finished antibacterial yarn.
2. The preparation method of the bacteriostatic yarn according to claim 1, wherein in step S1, the rapid cooling treatment is performed by soaking in ice water for 120-150 min or keeping at a temperature of-18 to-25 ℃ for 30-50 min.
3. The method for preparing bacteriostatic yarns according to claim 1, wherein in the step S2, the polyester fiber filaments and the viscose fibers are subjected to a pre-soaking treatment by glutaraldehyde.
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