CN109355911A - A kind of composite yarn and its production method - Google Patents
A kind of composite yarn and its production method Download PDFInfo
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- CN109355911A CN109355911A CN201811111411.2A CN201811111411A CN109355911A CN 109355911 A CN109355911 A CN 109355911A CN 201811111411 A CN201811111411 A CN 201811111411A CN 109355911 A CN109355911 A CN 109355911A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
-
- 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
- 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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
-
- 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
- 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
- D06M2101/38—Polyurethanes
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention provides a kind of production methods and application thereof of composite yarn in yarn manufacturing field, including production core wire and production covering thread, covering thread is the composite fibre line filled with cut resistant auxiliary agent, choose 1 core wire and after 2 covering threads are fabricated to composite yarn by double-twisting technology, composite yarn is immersed in the wear-resisting dipping solution of production, finally dries to obtain anti-cutting performance and the excellent composite yarn of wear-resisting property.
Description
Technical field
The present invention relates to composite yarn technical field more particularly to a kind of composite yarns and its producer with rubber shoe latex layer
Method.
Background technique
In recent years, the type of protective textiles is more and more, and the development of armored fabric is gradually to new high-tech industry side
To drawing close, and become an important symbol of present textile technology progress.
Currently, domestic go deep into systematic research to anti-cutting gloves fabric shortage, point especially in terms of anti-cutting mechanism
Analysis is perfect not enough, and existing cut resistant gloves, which mostly use greatly that steel wire is added inside gloves or is arranged, thickens module to enhance hand
The anti-cutting performance of set, but steel wire complex process, higher cost are added in gloves, in addition, what is obtained by way of thickening is anti-
Cutting gloves, it is inconvenient to dress, and is easy to fall off phenomenon because of grip deficiency when grasping object, leads to extruding, object
The injury accidents such as strike.
Therefore, how to be directed to disadvantage present in the above-mentioned prior art and carry out research and development improvement, actually exerted needed for relevant industry
Power research and development target, the application designer in view of this, be think and creation idea, designed then with the experience of many years, pass through
In many ways sampling test is inquired into and is studied, and repeatedly amendment improvement, be releasing the application.
For example, application No. is the Chinese invention patents of CN201510863720.5 to disclose a kind of anti-cutting safety gloves,
Including glove bodies, described glove bodies one end, which is equipped with, shrinks set, in the glove bodies and is located at the corresponding outside of the palm of the hand
Several anti-slip protrusions on surface, it is characterised in that: the glove bodies side wall is equipped with several phosphor strips, the gloves master
Several anti-cutting rack gears, each finger in the glove bodies are respectively equipped on body on the circumferencial direction of each finger-stall
It covers end and is equipped with anti-skidding arc strip, be respectively equipped with anti-cutting from outside to inside on each finger-stall inner sidewall in the glove bodies
Layer and refractory layer.The invention patent can improve the anti-cutting performance of gloves to a certain extent, but only by glove bulk
Measures, the not only mechanizations relatively difficult to achieve in technique such as the upper anti-cutting rack gear of setting improve production cost, and due to increasing hand
The thickness of ontology is covered, personnel wear inconvenient, uncomfortable.
Such as application No. is the Chinese invention patents of CN201110452276.X to disclose a kind of PVC cut resistant protecting hand
Set, includes liner layer, liner layer outer application has PVC coating, which is characterized in that the liner layer is by nonwoven layer and knitting
Layer of cloth composition, knitting layer of cloth are located on the outside of nonwoven layer, and non-woven fabrics fiber crosses knitting layer of cloth by needle-penetration, make nonwoven layer with
Layer of cloth is knitted to be close to, the PVC coating immerses knitting layer of cloth, by be knitted layer of cloth and its in non-woven fabrics fiber consolidate, PVC coating
There is non-woven fabrics fiber and PVC coating to consolidate the raised points to be formed on surface.The invention patent is mainly mentioned using the effect of PVC coating
The belt cutting-resisting property of high glove surface, technique is more mature, easily operated, but anti-cutting grade is lower, and protective value is poor.
Such as application No. is the Chinese utility model patents of CN98238314.2 to disclose a kind of anti-cutting of full protection steel wire
Gloves, by palm cover, thumbstall, steel wire and liner composition, on the inside of the centre of the palm of palm cover, feature exists for steel wire and liner
In: the intracardiac side installing steel wire of the finger of thumbstall 3 and liner.This patent mainly makees liner gloves for protection part hand using steel wire
The steel wire anti-cutting gloves that palm set and female fingerstall are stitched together, all there is glove weight weights, and gloves flexibility is poor, and gloves are only
Protection part cannot protect effective area, and production efficiency is low.
Summary of the invention
In view of above-mentioned technical problem, the present invention provides the production method and purposes of a kind of composite yarn, using core wire and two
A covering thread is fabricated to composite yarn, and wherein covering thread uses the composite fibre line added with cut resistant auxiliary agent nanoparticle, together
When the composite yarn of production is immersed in the dipping solution added with antiwear assistant, finally dry anti-cutting grade is high, wear-resisting
The covering yarn of function admirable.
The present invention provides a kind of production method of composite yarn, comprising:
Step S1 makes core wire: making core wire with spandex thread；
Step S2 makes covering thread: filler is added in liquid crystal polyester and is sufficiently mixed, and covering thread is made,
Wherein, the liquid crystal polyester is 85-95 parts by weight, the filler 5-15 parts by weight；
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and packet is made
Heart yarn line；
Step S4 makes dipping solution: aqueous polyurethane emulsion and wearproof emulsion being mixed and stirred for uniformly, impregnation to be made
Liquid, wherein the aqueous polyurethane emulsion is 90-95 parts by weight, and the wearproof emulsion is 5-10 parts by weight；
Step S5, immersion liquid: composite yarn described in step S3 is immersed in dipping solution described in step S4, impregnates 5-
10min；
Drying: step S6 the composite yarn handled through step S5 is dried.
Preferably, the fineness of spandex thread is 120-140D in the step S1, and the drafting multiple of the spandex thread is 3-4
Times.
Preferably, the liquid crystal polyester in the step S2 be polyacrylate, polypropylene aromatic ester, polymethacrylates,
One of polymethyl aromatic ester, ekonol.
Preferably, the filler in the step S2 is tungsten nano-particles or nano alumina particles.
Preferably, it is 310-330 twirl that double-twisting technology, which is the twist of first covering thread of control, in the step S3, is twisted
To for Z twirl, the twist for controlling second covering thread is 200-220 and twists that orientation is S twirl.
Preferably, in the composite yarn, each component parts by weight are as follows: spandex thread 15-20%, first covering thread 30-
45%, second covering thread 30-45%.
Preferably, the solid parts by weight of aqueous polyurethane are 45-60% in the step S4.
Preferably, wearproof emulsion is ptfe emulsion in the step S4.
Correspondingly, the invention also discloses a kind of composite yarn, the composite yarn includes core wire, covering thread and impregnation
Layer, the covering thread are the made composite fibre line of the liquid crystal polyester filled with nanometer tungsten or aluminium oxide particles, 2 claddings
By the obtained composite yarn of double-twisting technology, the rubber shoe latex layer is wrapped in the outer layer of the envelope curve yarn for line and 1 core wire.
Compared with prior art, the present invention have it is following the utility model has the advantages that
(1) composite yarn of the present invention, wherein covering thread is used added with hard nanometer tungsten particle or nano alumina particles
Afterwards, coating cotton thread modulus and intensity are improved, the anti-cutting performance of obtained composite yarn is largely increased, and can reach
Anti- cutting performance 4-5 grades in the anti-mechanical risk standard of EN388.
(2) one layer of rubber shoe latex layer is wrapped up outside composite yarn of the present invention, and rubber shoe latex layer is the aqueous polyurethane added with anti-wear agent,
Its wear-resisting property for not only increasing composite yarn, and the overall structural strength of composite yarn is improved, improve covering yarn
The anti-cutting performance of line.
(3) in the double-twisting technology of composite yarn of the present invention, when fiber filament is constituted in composite yarn with the line way of contact, packet
Structure is close compared with point contact in heart yarn strands, and when use can reduce opposite sliding between fiber filament in composite yarn, fiber in stock
Silk the lay pitch it is equal, the spiral angle of internal layer is smaller, elongation compare point contact wirerope be it is small；In addition, the covering yarn of line contact
The bulkfactor of line is higher, and when other conditions are identical, the loss of strength after twisting is smaller than point contact composite yarn, same to diameter, same
When intensity, higher load can be born than point contact composite yarn.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the flow chart of the production method of composite yarn of the present invention.
Specific embodiment
Following embodiment will be helpful to those skilled in the art and further understand the present invention, but not limit in any form
The present invention.It should be pointed out that those skilled in the art, without departing from the inventive concept of the premise, also
Several modifications and improvements can be made, these are all within the scope of protection of the present invention.
Embodiment 1
The present invention provides a kind of production methods of composite yarn, comprising:
Step S1 makes core wire: selecting the spandex thread that fineness is 120D to make core wire, the drafting multiple of spandex thread is 3
Times；
Step S2, make covering thread: covering thread is the nanometer tungsten of 85 parts of liquid crystal polyacrylate and 15 parts in parts by weight
The composite fibre line that particle is combined；
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and is fabricated to composite yarn.
Double-twisting technology when cladding is that the twist of first covering thread of control is 310 twirls, and orientation is Z twirl, controls second cladding
The twist of line is 220 twirls, and orientation is S twirl, and composite yarn is made.Each filametntary twirl in the stock that the composite yarn is twisted
Different away from identical spiral angle, ectonexine composite fibre silk contacts with each other on a helix, is in line contact condition.Cladding obtained
In yarn, according to parts by weight, spandex thread 15%, first covering thread 40%, second covering thread 45%；
Step S4, make dipping solution: dipping solution be in parts by weight be 90 parts of aqueous polyurethane emulsions and 10 parts of polytetrafluoros
Vac emulsion wearproof emulsion stir evenly mixing it is made, wherein the solid parts by weight of aqueous polyurethane be 45%.
Step S5: immersion liquid: the composite yarn made in step S3 is immersed in the dipping solution of step S4 production
5min；
Step S6: drying: the composite yarn handled through step S5 is dried, drying time 10-15min.
Embodiment 2
The present invention provides a kind of production methods of composite yarn, comprising:
Step S1 makes core wire: selecting the spandex thread that fineness is 130D to make core wire, the drafting multiple of spandex thread is
3.5 again；
Step S2, make covering thread: covering thread is the nanometer tungsten of 90 parts of liquid crystal polypropylene aromatic ester and 10 parts in parts by weight
The composite fibre line that particle is combined；
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and is fabricated to composite yarn.
Double-twisting technology when cladding is that the twist of first covering thread of control is 320 twirls, and orientation is Z twirl, controls second cladding
The twist of line is 210 twirls, and orientation is S twirl, and composite yarn is made.Each filametntary twirl in the stock that the composite yarn is twisted
Different away from identical spiral angle, ectonexine composite fibre silk contacts with each other on a helix, is in line contact condition.Cladding obtained
In yarn, according to parts by weight, spandex thread 20%, first covering thread 40%, second covering thread 40%；
Step S4, make dipping solution: dipping solution be in parts by weight be 95 parts of aqueous polyurethane emulsions and 5 parts of polytetrafluoroethyl-nes
Alkene lotion wearproof emulsion stir evenly mixing it is made, wherein the solid parts by weight of aqueous polyurethane be 50%.
Step S5: immersion liquid: the composite yarn made in step S3 is immersed in the dipping solution of step S4 production
10min；
Step S6: drying: the composite yarn handled through step S5 is dried, drying time 10-15min.
Embodiment 3
The present invention provides a kind of production methods of composite yarn, comprising:
Step S1 makes core wire: selecting the spandex thread that fineness is 140D to make core wire, the drafting multiple of spandex thread is 4
Times；
Step S2, make covering thread: covering thread is 95 parts of liquid crystal polymethacrylates and 5 parts of nanometer in parts by weight
The composite fibre line that tungsten particle is combined；
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and is fabricated to composite yarn.
Double-twisting technology when cladding is that the twist of first covering thread of control is 330 twirls, and orientation is Z twirl, controls second cladding
The twist of line is 200 twirls, and orientation is S twirl, and composite yarn is made.Each filametntary twirl in the stock that the composite yarn is twisted
Different away from identical spiral angle, ectonexine composite fibre silk contacts with each other on a helix, is in line contact condition.Cladding obtained
In yarn, according to parts by weight, spandex thread 20%, first covering thread 35%, second covering thread 45%；
Step S4, make dipping solution: dipping solution be in parts by weight be 95 parts of aqueous polyurethane emulsions and 5 parts of polytetrafluoroethyl-nes
Alkene lotion wearproof emulsion stir evenly mixing it is made, wherein the solid parts by weight of aqueous polyurethane be 60%.
Step S5: immersion liquid: the composite yarn made in step S3 is immersed in the dipping solution of step S4 production
10min；Step S6: drying: the composite yarn handled through step S5 is dried, drying time 10-15min.
Embodiment 4
The present invention provides a kind of production methods of composite yarn, and implementation step is substantially the same manner as Example 1, main region
It is not:
Step S2, make covering thread: covering thread is receiving for 85 parts of liquid crystal polymethyl aromatic ester and 15 parts in parts by weight
The composite fibre line that rice aluminium oxide particles are combined.
Embodiment 5
The present invention provides a kind of production methods of composite yarn, and implementation step is substantially the same manner as Example 2, main region
It is not:
Step S2, make covering thread: covering thread is that 90 parts of liquid crystal ekonols and 10 parts are received in parts by weight
The composite fibre line that rice aluminium oxide particles are combined.
Embodiment 6
The present invention provides a kind of production methods of composite yarn, and implementation step is substantially the same manner as Example 3, main region
It is not:
Step S2, make covering thread: covering thread is 95 parts of liquid crystal polyacrylate and 5 parts of nano aluminium oxides in parts by weight
The composite fibre line that particle is combined.
Comparative example 1
This comparative example provides a kind of production method of composite yarn, and implementation step is substantially the same manner as Example 1, mainly
Difference is:
Step S1 makes core wire: selecting the spandex thread that fineness is 100D to make core wire, the drafting multiple of spandex thread is
2.5 again.Step S2 makes covering thread: the fiber line that covering thread is made by 100 parts of liquid crystal polyacrylate.
Comparative example 2
This comparative example provides a kind of production method of composite yarn, and implementation step and comparative example 1 are essentially identical, mainly
Difference is:
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and is fabricated to composite yarn.
When cladding, the twist for controlling first covering thread is 195 twirls, and for Z twirl, the twist for controlling second covering thread is orientation
175 twirls, orientation are S twirl, and composite yarn is made.In coating cotton thread obtained, according to parts by weight, spandex thread 20%, first
Root covering thread 40%, second covering thread 40%.Step S4, make dipping solution: dipping solution is aqueous polyurethane emulsion.
According to above embodiments 1-6 and comparative example 1-2, the main distinction is expressed as follows:
The working condition main difference of 1 embodiment of table and comparative example
According to the anti-mechanical risk standard of EN388 to the related mechanical properties of the coating cotton thread of embodiment 1-6 and comparative example 1-2
It is tested.
Resistance to blade cutting detection: number of rounds required for sample is cut off with a continuous speed.
Wear-resisting detection: the number ground away needed for sample back and forth under continuous speed.
According to the above examination criteria, test result such as table 2.
Table 2 is test result table
| Project | Anti- cutting grade | Wear-resisting grade |
| Embodiment 1 | 4 | 3 |
| Embodiment 2 | 5 | 4 |
| Embodiment 3 | 4 | 3 |
| Embodiment 4 | 4 | 3 |
| Embodiment 5 | 5 | 4 |
| Embodiment 6 | 4 | 3 |
| Comparative example 1 | 2 | 2 |
| Comparative example 2 | 2 | 1 |
According to table 1 and table 2, to embodiment 1-6, performance outstanding is illustrated such as in terms of anti-cutting, wear resistance and tear-proof
Under:
(1) in terms of anti-cutting performance
Showing that the anti-cutting grade of comparative example 1-2 declines 2-3 grade compared with embodiment 1-6 in table 2, reduction degree is larger,
And learnt by table 1, comparative example 1-2 and the dramatically different point of embodiment 1-6 are that covering thread is not added with anti-cutting auxiliary agent nanometer tungsten
Particle or nano alumina particles, from above-mentioned difference:
In embodiment 1-6, after adding hard nanometer tungsten particle or nano alumina particles in the fiber line of covering thread,
The belt cutting-resisting property of its obtained coating cotton thread is largely increased, and dominant mechanism is described below:
The cut resistant mechanism of fiber is actually the response process that fabric impacts blade.When the blade of movement with knit
When object contacts, due to the supporting role of rear portion fabric and backing, fabric is compressed to minimum thickness by moment, and blade acts at this time
On fabric, failure by shear is produced, this destructive process is a kind of bilateral shear history, this stage makes blade have beginning thicker
Rough trend, while with the stretcher strain of rear layer fiber, with the reduction of blade speed, fiber start to be stretched effect and
The kinetic energy of deformation, blade is converted to the elastic potential energy of fiber, and after the elastic potential energy of fiber is more than its work to break, fiber is stretched
It destroys, this stage blade continues roughening.Since blade is roughening and decelerating effect, after the stretcher strain of fiber is by fabric
The limitation of portion's fiber prevents the advance of blade, initially forms " back is convex " on the fabric, the kinetic energy of blade is further by fiber
Stretcher strain is consumed.In general, blade after completing to the penetrating of fabric, can observe the layer and knit on later layer fabric
The back side of object can find apparent spherical crown or the similar deformation of hemisphere, and the deformation of fabric can be increasing later, form " back is convex ".
This stage finally absorbs whole energy of blade by the stretcher strain of fiber.
From the foregoing, it will be observed that fabric absorbs impact energy by deformation in the region absorbed impact, impact energy is absorbed
How much the superiority and inferiority of its belt cutting-resisting property is determined.Practice have shown that the intensity of fiber used in fabric is higher, modulus is bigger, elastic prolongs
It is smaller to stretch rate, then it is formed by that forced area is bigger in shock zone, and the impact energy of absorption is more, and resistant to shearing etc. is anti-
It is also better to protect performance.
It can be seen that improve the intensity and modulus of fiber, preparing high-strength high-modulus fibre is to improve fiber and its fabric is resistance to cuts
The important prerequisite of cutting property.
1. forming filler after filling tungsten or aluminium oxide hard filler in liquid crystal polyester and filling system, so that liquid crystal is poly-
Ester fiber mechanical property is improved.So its highly dispersed can be made to be distributed in matrix using fine particle, matrix can be hindered
Plastic deformation is generated, and causes molecular chain movement, plays a part of to strengthen matrix.Meanwhile nano particle is mixed in fibre-forming polymer,
Since nanoparticle surface there are a large amount of defects, so not only having accumulation of energy effect, but also there is stronger model between macromolecular chain
The effect of moral China power, furthermore nano-particles filled enters inside the defect of polymer, and the stress collected state of system can be made to change
Become, thus generate toughening reinforcing effect, Basic Mechanism is as follows:
1) presence of inorganic nano-particle generates stress concentration effect, and easily the generation of initiation surrounding resin is crack splits, and absorbs one
Fixed work of deformation；
2) presence of inorganic nano-particle makes matrix resin crack propagation be obstructed and be passivated, and finally terminates crackle, Bu Zhifa
Exhibition is destructive cracking；
3) as the reduction of nano particle diameter, the specific surface area of particle increase, filler and substrate contact area increase, material
Material generates more micro-cracks when being hit, and absorbs more impact energys.
2. the fiber number of core filaments and wherein monofilament radical will be selected according to textile applications and spinning count.Same fiber number
Core filaments, monofilament is thinner, and radical is more, and the fabric the soft smooth, conversely, the thicker radical of monofilament is fewer, fabric is rigidly good,
It is well-pressed.For this purpose, as a bit partially thick core filaments of core wire spandex thread selection fineness 120D-140, ensuring that soft fabric, wearing relax
In the case where suitable, its rigidity can be improved to the greatest extent, to improve its anti-cutting performance.
3. being not only that line connects between same layer composite fibre silk when fiber filament is constituted in composite yarn with the line way of contact
Touching, and be also line contact between each adjacent layer composite fibre silk, in composite yarn each layer composite fibre silk have identical orientation and
The lay pitch, thus have the special feature that and be:
(1) structure is close compared with point contact in stock, and when use can reduce opposite sliding between fiber filament in composite yarn, in stock
The fiber filament lay pitch is equal, and the spiral angle of internal layer is smaller, elongation compare point contact wirerope be it is small；
(2) bulkfactor is higher, and when other conditions are identical, the loss of strength after twisting is smaller than point contact composite yarn,
Same diameter, with intensity when, higher load can be born than point contact composite yarn；
(2) in terms of wear-resisting property
1. the wearability of comparative example 1 declines 1-2 grade as can be seen from Table 2, with the main distinction of embodiment 1-6 from table 1
Find out and be that covering thread is not added with anti-cutting auxiliary agent nanoparticle tungsten or aluminium oxide, according to material mechanical performance it is found that wear resistance
There are non-linear proportional relations with hardness, i.e., under square one, hardness is higher, and wear-resisting property is relatively better, otherwise also
So.
2. the wear resistance of comparative example 2 from table 2 can output decline 2-3 grade, with the main distinction of embodiment 1-6 from table 1
Find out and is to be not added with antiwear assistant tetrafluoroethene lotion in dipping solution, main reason is that:
Compared with water-based polyurethane coating film, the addition of silicone emulsion can greatly improve the wearability of film.This be by
It is smaller in the surface tension of silicone, it can reduce the coefficient of friction of film coated surface, thus anti-wear and wear-resistant performance improves.But silicone and
The compatibility of polyurethane resin is bad, and the silicone of low surface tension can be migrated to film coated surface, when its mass fraction further increases
When big, the silicone of film coated surface causes abrasion loss in friction process to increase, thus when the silicone emulsion in dipping solution in embodiment
Wear resistance when parts by weight are 5% is higher than one grade of wear resistance that its parts by weight is 10%.
So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art
There should be clear understanding to the application.
It should be noted that can provide the demonstration of the parameter comprising particular value herein, but these parameters are without being definitely equal to
Corresponding value, but analog value can be similar in acceptable error margin or design constraint.The direction mentioned in embodiment
Term, such as "upper", "lower", "front", "rear", "left", "right" etc. are only the directions with reference to attached drawing, are not used to limit this Shen
Protection scope please.In addition, unless specifically described or the step of must sequentially occur, the sequences of above-mentioned steps there is no restriction in
It is upper listed, and can change or rearrange according to required design.And above-described embodiment can be examined based on design and reliability
Consider, the collocation that is mixed with each other is used using or with other embodiments mix and match, i.e., the technical characteristic in different embodiments can be certainly
More embodiments are formed by combination.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (9)
1. a kind of production method of composite yarn characterized by comprising
Step S1 makes core wire: making core wire with spandex thread；
Step S2 makes covering thread: filler is added in liquid crystal polyester and is sufficiently mixed, and covering thread is made, wherein
The liquid crystal polyester is 85-95 parts by weight, the filler 5-15 parts by weight；
Step S3 makes composite yarn: choosing 1 core wire and 2 covering threads by double-twisting technology and composite yarn is made；
Step S4 makes dipping solution: aqueous polyurethane emulsion and wearproof emulsion is mixed and stirred for uniformly, dipping solution to be made,
In, the aqueous polyurethane emulsion is 90-95 parts by weight, and the wearproof emulsion is 5-10 parts by weight；
Step S5, immersion liquid: composite yarn described in step S3 is immersed in dipping solution described in step S4, impregnates 5-10min；
Drying: step S6 the composite yarn handled through step S5 is dried.
2. the production method of composite yarn according to claim 1, which is characterized in that spandex thread is thin in the step S1
Degree is 120-140D, and the drafting multiple of the spandex thread is 3-4 times.
3. the production method of composite yarn according to claim 1, which is characterized in that the liquid crystal polyester in the step S2
For one in polyacrylate, polypropylene aromatic ester, polymethacrylates, polymethyl aromatic ester, ekonol
Kind.
4. the production method of composite yarn according to claim 3, which is characterized in that the filler in the step S2 is
Tungsten nano-particles or nano alumina particles.
5. the production method of composite yarn according to claim 1, which is characterized in that double-twisting technology is in the step S3
The twist for controlling first covering thread is 310-330 twirl, and orientation is Z twirl, and the twist for controlling second covering thread is 200-
220 twirls, orientation are S twirl.
6. the production method of composite yarn according to claim 5, which is characterized in that in the composite yarn, each component
Parts by weight are as follows: spandex thread 15-20%, first covering thread 30-45%, second covering thread 30-45%.
7. the production method of composite yarn according to claim 1, which is characterized in that aqueous polyurethane in the step S4
Solid parts by weight be 45-60%.
8. the production method of composite yarn according to claim 7, which is characterized in that wearproof emulsion is in the step S4
Ptfe emulsion.
9. a kind of composite yarn, which is characterized in that any one of -8 the methods are made the composite yarn according to claim 1,
Including core wire, covering thread and rubber shoe latex layer, the covering thread is that the liquid crystal polyester filled with nanometer tungsten or aluminium oxide particles is made
Composite yarn, the rubber shoe latex layer packet is made by double-twisting technology in composite fibre line, 2 covering threads and 1 core wire
It is wrapped in the outer layer of the composite yarn.
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| CN113737530A (en) * | 2021-08-23 | 2021-12-03 | 合肥科天水性科技有限责任公司 | Waterborne polyurethane bundling braided wire and preparation method thereof |
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