CN107938082A - A kind of mass preparation method of electrostatic spinning nano fiber/cotton antibacterial covering yarn - Google Patents
A kind of mass preparation method of electrostatic spinning nano fiber/cotton antibacterial covering yarn Download PDFInfo
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- CN107938082A CN107938082A CN201810011255.6A CN201810011255A CN107938082A CN 107938082 A CN107938082 A CN 107938082A CN 201810011255 A CN201810011255 A CN 201810011255A CN 107938082 A CN107938082 A CN 107938082A
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- Prior art keywords
- cotton
- nano fiber
- electrostatic spinning
- covering yarn
- spinning
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Classifications
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- 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
-
- 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
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- 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
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
-
- 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
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- 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
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- 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
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
- D10B2321/041—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polyvinyl chloride or polyvinylidene chloride
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/06—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
Abstract
The present invention relates to a kind of mass preparation method of electrostatic spinning nano fiber/cotton antibacterial covering yarn, including：The preparation of spinning solution, the preparation of nano fiber coated silk, the preparation of cotton spinning rove, the preparation of electrostatic spinning nano fiber/cotton antibacterial covering yarn.It is of the invention simple, can mass production, and long filament, nanofiber, the cotton staple multilayer cored composite construction built, be conducive to improve abrasion and destruction of the nanofiber during processing and use, the durability of yarn antibacterial is significantly improved, efficiently solves the technical barrier of antibacterial fabric durability difference.
Description
Technical field
The invention belongs to textile processing field, the batch of more particularly to a kind of electrostatic spinning nano fiber/cotton antibacterial covering yarn
Change preparation method.
Background technology
The functionalization of fabric is always to improve textile product class and added value, expand grinding for textile product application field
Study carefully one of hot spot.And antibacterial fabric can inhibit bacteria under the conditions of ensureing using the antiseptic for having no toxic side effect to human body
Growth, significantly reduce mankind's body risk because of caused by bacterium, thus enjoy the favor of consumer.
Current substantial amounts of antibacterial fabric existing on the market, and these antibacterial fabrics are post-processed using textile mostly
Method is made.Antimicrobial coating processing is carried out to ready-made clothes surface including (1), although this method industrial production efficiency is high, and
The anti-microbial property of antibiotic fabric is excellent, but since the combination between antiseptic and fiber or fabric is physical action,
Antiseptic is easy to fall off, and the washability of antibiotic fabric is poor；In addition the coating of antiseptic, which has severely impacted, includes fabric breathability
Every wearability inside；(2) in fiber or yam surface grafting antiseptic, although can to assign fabric preferable for this method
Antibiotic property, but low production efficiency, and preparation process is cumbersome, degree of controllability is poor.It can be seen from the above that truly meet consumer
The antibacterial fabric of demand and textile process double requirements still needs further to be researched and developed.
Static Spinning as it is a kind of can continuous batch prepare the emerging technology of micro nanometer fiber, it has also become prepare nanometer at present
The widest application process of fiber.By the nanofiber diameter of electrostatic spinning preparation usually between tens to hundreds of nanometers,
With significant nano effect, due to many advantages, such as its specific surface area is high, surface energy is high, draw ratio is big, it was widely used in
The research fields such as filter, bioengineered tissue, antibacterial, medicament slow release, sensing detection, the energy.
Electrostatic spinning technique is combined with traditional textile technology, not only contributes to realize the industrialization of electrostatic spinning technique
Using, and can also assign traditional textile new feature on the basis of textile wearability is not changed substantially, lifted
Textile added value and product specification, the direction become spinning and the research hotspot of electrostatic spinning crossing domain.It is existing at present
Some investigators have made this relevant research and report, and China Intellectual Property Office's invention disclosed on November 01st, 2012 is special
Sharp " nanofiber and the spinning apparatus and Yarn spinning method of filament composite yarn ", number of patent application ZL201210433332.X,
This application patent complicated legal case proposes a kind of by nanofiber and the compound spinning apparatus of long filament and method, passes through electrostatic spinning technique
Depositing nanofibers are distinguished on two root long silks, twisting then is gathered to two root long silks again, obtains having nano effect and intensity concurrently
Nanofiber bicomponent filament yarn yarn, solve the problems, such as the low strength of nanofiber in practical applications to a certain extent.But if
Weaving is directly applied into cloth, since most of nanofiber is exposed to yarn external surface, the nanofiber of filament surface
Easily it is scraped during processing and final use, loses original nano effect.Based on this, China Intellectual Property Office 2013
Invention disclosed patent on November 20, " a kind of preparation method of the blended complex yarn of nanofiber ", number of patent application is
ZL201310586642.X, a kind of preparation method of electrostatic spinning nano fiber/silk/cotton blended yarn of this application patent disclosure, this method
By undergoing technological transformation in cotton spinning combing segment, electrostatic spinning is carried out using TAYLOR cone multiple spray head static spinning machines, and allow
The nanofiber produced in spinning process is deposited directly in card web, compound with cotton net and be agglomerated into bar, then through multiple drafting,
The processes such as rove, spun yarn prepare nanofiber/cotton blending yarn, it can be achieved that the functionalization of yarn, has preferable production practices
Directive significance.But it is still to hinder its production that abundance of the nanofiber in mixed yarn is low in this method and even distribution is poor etc.
The huge difficult problem of industry metaplasia production.China Intellectual Property Office's invention disclosed patent on January 18th, 2017 " nano electrostatic spinning with it is short
The method of staple ring spun yarns integration resultant yarn ", number of patent application CN201610847286.6, this application patent complicated legal case pass through
Single needle electrostatic spinning apparatus spinning is set between the twizzle and front roller nip of ring spinner, makes nanometer fiber net and palpus
Bar convergence twisting, it is intended to which microfibre looping spun yarn is received in preparation.But looping external layer of yarn prepared by this method is nanofiber, equally
There is the fatal problem that nanofiber comes off during following process and use, and since crystallizing field is attached in preparation process
Metal parts is closely essentially, disturbs spinning process so that nanofibres deposit is extremely disorderly, when the spinning time is longer, fiber
Deposition film forming, it could even be possible to influencing normal short fine spinning process.China Intellectual Property Office is sent out disclosed in 18 days January in 2017
Bright patent " a kind of long filament ring ingot compound spinning method of nano-micro scale reinforcing fiber resultant yarn ", number of patent application is
CN201610837502.9, this application patent complicated legal case introduce filament feeding device on the basis of ring throstle, and by quiet
Electrical spinning method is coated with the long filament insertion front roller nip of nanofiber in filament surface depositing nanofibers, then surface, with
Short fibre twists resultant yarn together.This method can prepare nanofiber/long filament/short fine composite yarn in theory, but nanofibres deposit arrives
The process of filament surface is uncontrollable, and under the interference of other metal devices, spinning process is extremely unstable, seriously restricts most
Whole the yarn even performance of textile.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of mass of electrostatic spinning nano fiber/cotton antibacterial covering yarn
Preparation method, this method is simple, can mass production, and build long filament, nanofiber, cotton staple multilayer cored composite junction
Structure, is conducive to improve abrasion and destruction of the nanofiber during processing and use, significantly improves the durable of yarn antibacterial
Property, efficiently solves the technical barrier of antibacterial fabric durability difference.
A kind of mass preparation method of electrostatic spinning nano fiber/cotton antibacterial covering yarn of the present invention, comprises the following steps that：
(1) high polymer is dissolved in solvent, adds antiseptic, stirring, obtains spinning solution, by chemical-fibres filaments beam and spinning solution into
Row electrostatic spinning, obtains nano fiber coated silk, and the concentration of high polymer is 6-15wt% wherein in spinning solution, antibacterial in spinning solution
The concentration of agent is 1wt%-5wt%；
(2) cotton short fiber is spinned, obtains cotton spinning rove；
(3) nano fiber coated silk in step (1) is fed to the filament feeding device of ring spinner, by step (2)
Cotton spinning rove is fed into the drafter of ring spinner, is exported, is added together with nano fiber coated silk in front roller nip
Twist with the fingers, obtain electrostatic spinning nano fiber/cotton antibacterial covering yarn.
Solvent is DMF or deionized water in the step (1)；High polymer is polyacrylonitrile (PAN), PVAC polyvinylalcohol or poly-
Ethylene oxide PEO；Antiseptic is triclosan, chitosan or biguanides.
Chemical-fibres filaments beam is spandex filament beam, polyester filament beam or chinlon filament beam in the step (1)；Chemical-fibres filaments beam
Fineness be 20-150dtex.
Electrostatic spinning carries out in electro-spun nanofiber yarn machine in the step (1).
The electro-spun nanofiber yarn machine is that " one kind orientation is quiet disclosed in Chinese patent CN201310058070.8
Electro-spun nanofiber yarn machine in electro spinning nano fiber yarn continuous preparation device and method ", including metal circular target and
Lever jack, the metal circular pinwheel are connected with one end of insulating bar, and the insulating bar drives rotation by motor I, described
Lever jack is located at immediately below metal circular target and with metal circular target in symmetrical relative configuration, the metal circular target and lever jack
The distance between adjustable, adjustable extent 1cm-20cm, the lever jack be boring structure, and cylindrical rearward end is using insulation
Material is made, and the lever jack front portion metallic tip is directed at metal circular pinwheel, is tube and and yarn below the lever jack
Cylinder be mutually perpendicular to arrange, the tube drives rotation, the metal circular target, insulating bar, motor I, lever jack cloth by motor II
Put in same central line, symmetrical I He of spinning head is disposed with left and right sides of the metal circular target and lever jack
Spinning head II, spinning head I and spinning head II are on same straight line, and the straight line and straight line where metal circular target and lever jack
Perpendicular, the spinning head I is connected with high-pressure electrostatic positive terminal, spinning head II and high-pressure electrostatic the negative terminal phase
Even, it is anterior with lever jack to be overlapped on metal circular target for the jet stream II that the jet stream I formed by spinning head I and spinning head II are formed
Between metal tip.
The technological parameter of electrostatic spinning is in the step (1)：The solution feeding rate of single needle is 0.2-0.8ml/h,
The vertical range of needle tip to long filament is 10-15cm, and application voltage is 10-15kv, and the movement velocity of long filament is 1-10cm/s,
Spinning temperature is 20-25 DEG C, envionmental humidity 30%-65%.
The thickness of surface coated nanofiber can pass through the confession of spinning solution in nano fiber coated silk in the step (1)
Liquid speed rate, the movement velocity of long filament, apply the parameters such as voltage progress Reasonable Regulation And Control.
The process spinned in the step (2) is including distributing cotton, opening picking, cotton carding, combing, 1-2 roads drafting and rove etc..
Various process parameters can be carried out according to the demand of final products in the preparation process of cotton spinning rove in the step (2)
Flexibly set.
Electrostatic spinning nano fiber/cotton antibacterial covering yarn is to coat electrostatic spinning nano fiber by surface in the step (3)
Endless tow sandwich layer and outer layer cotton fiber composition.
The present invention is combined using electrostatic spinning technique with traditional spining technology, and mass prepares durability antibacterial cored
Yarn.The present invention installs heart yarn feeding unit additional on ring spinner, and rove is fed by rear roller jaw, is drawing to through drafter
Up to front roller nip；Nano fiber coated silk can be introduced to front roller nip by the heart yarn feeding unit, and with cotton staple palpus
Bar converges, and is embedded into yarn body, obtains nanofiber/long filament/cotton antibacterial covering yarn.
Beneficial effect
It is of the invention simple, can mass production, and long filament, nanofiber, the cotton staple multilayer cored composite junction built
Structure, is conducive to improve abrasion and destruction of the nanofiber during processing and use, significantly improves the durable of yarn antibacterial
Property, efficiently solves the technical barrier of antibacterial fabric durability difference.
Brief description of the drawings
Fig. 1 is the process flow chart of the present invention；
Fig. 2 is that the present invention prepares the schematic device of nano fiber coated silk, wherein 1 is high-pressure electrostatic positive terminal, 2
It is to promote pump, 3 be spinning head, and 4 be endless tow, and 5 be motor, and 6 be metal circular target, and 7 be jet stream, and 8 be insulating bar, and 9 be high pressure
Electrostatic negative terminal；
Fig. 3 is the schematic device that the present invention prepares electrostatic spinning nano fiber/cotton antibacterial covering yarn, wherein 1 is Nanowire
Cladding wire is tieed up, 2 be front leather roller, and 3 be front roller, and 4 be Yarn twisting coiler device, and 5 be cotton rove；
Fig. 4 is the electron microscope of nano fiber coated long filament in embodiment 1, and (a) is the surface shape of nano fiber coated long filament
Looks figure, (b) are the cross-sectional view of nano fiber coated long filament；
Fig. 5 is the 50 times of electron microscopes (a) and 500 times of electron microscopes of electrostatic spinning nano fiber in embodiment 1/cotton antibacterial covering yarn
(b)。
Embodiment
With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments are merely to illustrate the present invention
Rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Scope.
Embodiment 1
(1) 10g polyacrylonitrile (molecular weight 78000) is dissolved in 85gDMF, adds 5g triclosan antimicrobial agent, mixed
Close solution stirred evenly in magnetic stirring apparatus, obtain antimicrobial agent concentration be 5wt%, polyacrylonitrile concentration be the uniform of 10wt%
Spinning solution；Nano fiber coated silk is prepared using electro-spun nanofiber yarn machine, polyester filament beam is fed into Static Spinning nanometer
In fiber yarn machine, electrostatic spinning is carried out using above-mentioned spinning solution, the liquid supply speed of syringe is 0.5ml/h, the voltage of application
Intensity is 10kv, and environment temperature T is 25 DEG C, and relative humidity RH is 50%, and syringe needle is 15cm apart from long filament vertical range,
Polyester filament beam fineness is 80dtex, and winding filament speed is 5cm/s, obtains nano fiber coated silk.
(2) by raw cotton on cotton spinning equipment through distributing cotton, opening picking, cotton carding, combing, 1-2 roads drafting and rove, are prepared into
300tex cotton rove.
(3) nano fiber coated silk in step (1) is fed in the filament feeding device of ring spinner, by step (2)
Middle cotton rove is fed into the drafter of ring spinner, and rove is thin under the drawing-off effect of rear roller, middle roller, front roller
Yarn is melted into, and reaches front roller nip, is converged with nano fiber coated silk, is exported together from front roller nip, twisting, obtains
60 and the twist are 300 antibacterial covering yarn.
Fig. 4 shows：The antibacterial nano fiber layer of outer layer coats the long filament of internal layer well, and the antibacterial nano fiber of outer layer
Measure more, be conducive to good antibacterial.
Fig. 5 shows：In nanofiber manufactured in the present embodiment/cotton covering yarn, the long filament of nano fiber coated is well
Coated by outermost cotton fiber, so that abrasion and destruction during efficiently avoid long-time service, significantly improve yarn
The antibacterial durability of line.
Embodiment 2
(1) 10g polyacrylonitrile (molecular weight 78000) is dissolved in 85gDMF, adds 5g biguanides antiseptics, mixed
Solution stirs evenly in magnetic stirring apparatus, obtains the uniform spinning that antimicrobial agent concentration is 5wt%, polyacrylonitrile concentration is 10wt%
Silk liquid；Nano fiber coated silk is prepared using electro-spun nanofiber yarn machine, polyester filament beam is fed into Static Spinning Nanowire
Tie up in yarn machine, carry out electrostatic spinning using above-mentioned spinning solution, the liquid supply speed of syringe is 0.5ml/h, and the voltage of application is strong
It is 25 DEG C to spend for 10kv, environment temperature T, and relative humidity RH is 45%, and syringe needle is 12cm apart from long filament vertical range, is washed
Synthetic fibre endless tow fineness is 80dtex, and winding filament speed is 5cm/s, obtains nano fiber coated silk.
(2) by raw cotton on cotton spinning equipment through distributing cotton, opening picking, cotton carding, combing, 1-2 roads drafting and rove, are prepared into
300tex cotton rove.
(3) nano fiber coated silk in step (1) is fed in the filament feeding device of ring spinner, by step (2)
Middle cotton rove is fed into the drafter of ring spinner, and rove is thin under the drawing-off effect of rear roller, middle roller, front roller
Yarn is melted into, and reaches front roller nip, is converged with nano fiber coated silk, is exported together from front roller nip, twisting, obtains
60 and the twist are 350 antibacterial covering yarn.
Claims (6)
1. a kind of mass preparation method of electrostatic spinning nano fiber/cotton antibacterial covering yarn, comprises the following steps that：
(1) high polymer is dissolved in solvent, adds antiseptic, stirring, obtains spinning solution, and chemical-fibres filaments beam and spinning solution are carried out
Electrostatic spinning, obtains nano fiber coated silk, and the concentration of high polymer is 6-15wt% wherein in spinning solution, antiseptic in spinning solution
Concentration be 1wt%-5wt%；
(2) cotton short fiber is spinned, obtains cotton spinning rove；
(3) nano fiber coated silk in step (1) is fed in the filament feeding device of ring spinner, by cotton in step (2)
Spin rove to be fed into the drafter of ring spinner, exported in front roller nip together with nano fiber coated silk, twisted,
Obtain electrostatic spinning nano fiber/cotton antibacterial covering yarn.
2. a kind of mass preparation method of electrostatic spinning nano fiber described in accordance with the claim 1/cotton antibacterial covering yarn, it is special
Sign is that solvent is DMF or deionized water in the step (1)；High polymer is polyacrylonitrile (PAN), PVAC polyvinylalcohol or polyoxy
Change ethene PEO；Antiseptic is triclosan, chitosan or biguanides.
3. a kind of mass preparation method of electrostatic spinning nano fiber described in accordance with the claim 1/cotton antibacterial covering yarn, it is special
Sign is that chemical-fibres filaments beam is spandex filament beam, polyester filament beam or chinlon filament beam in the step (1)；Chemical-fibres filaments beam
Fineness be 20-150dtex.
4. a kind of mass preparation method of electrostatic spinning nano fiber described in accordance with the claim 1/cotton antibacterial covering yarn, it is special
Sign is that the technological parameter of electrostatic spinning is in the step (1)：The solution feeding rate of single needle is 0.2-0.8ml/h, pin
The vertical range of head tip to long filament is 10-15cm, and application voltage is 10-15kv, and the movement velocity of long filament is 1-10cm/s, is spun
Silk temperature is 20-25 DEG C, envionmental humidity 30%-65%.
5. a kind of mass preparation method of electrostatic spinning nano fiber described in accordance with the claim 1/cotton antibacterial covering yarn, it is special
Sign is that the process spinned in the step (2) is including distributing cotton, opening picking, cotton carding, combing, 1-2 roads drafting and rove.
6. a kind of mass preparation method of electrostatic spinning nano fiber described in accordance with the claim 1/cotton antibacterial covering yarn, it is special
Sign is that electrostatic spinning nano fiber/cotton antibacterial covering yarn is by the length of surface cladding electrostatic spinning nano fiber in the step (3)
Tow sandwich layer and outer layer cotton fiber composition.
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| CN201810011255.6A CN107938082B (en) | 2018-01-05 | 2018-01-05 | Batch preparation method of electrostatic spinning nanofiber/cotton antibacterial core-spun yarn |
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| CN201810011255.6A CN107938082B (en) | 2018-01-05 | 2018-01-05 | Batch preparation method of electrostatic spinning nanofiber/cotton antibacterial core-spun yarn |
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Cited By (12)
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| CN108588887A (en) * | 2018-05-04 | 2018-09-28 | 东华大学 | A kind of antibacterial visualization sub-micron fibers and its preparation and application |
| CN109137198A (en) * | 2018-10-11 | 2019-01-04 | 桐乡市巨豪纺织有限公司 | A kind of high abrasion yarn |
| CN109234882A (en) * | 2018-09-04 | 2019-01-18 | 苏州大学 | A kind of continuous preparation method and preparation facilities of covering yarn |
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