CN110144658A - A kind of production method with the complex yarn for spending grey effect - Google Patents
A kind of production method with the complex yarn for spending grey effect Download PDFInfo
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- CN110144658A CN110144658A CN201910501118.5A CN201910501118A CN110144658A CN 110144658 A CN110144658 A CN 110144658A CN 201910501118 A CN201910501118 A CN 201910501118A CN 110144658 A CN110144658 A CN 110144658A
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- cotton
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- yarn
- polyacrylonitrile
- production method
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- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- 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
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- 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
- D02G3/02—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
- 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
- D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
- D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
-
- 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
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention provides a kind of production methods with the complex yarn for spending grey effect, comprising: raw cotton staple fiber S1, is carried out opening and cleaning step, flock is made；Dyestuff, polyacrylonitrile are mixed with solvent, obtain spinning mixed solution；S2, the flock for obtaining step S1 carry out cotton carding, during cotton carding forms primary colors cotton net, the spinning mixed solution are carried out electrostatic spinning, keeps the coloured nanofiber to be formed and primary colors cotton net compound, compound sliver is made；S3, the compound sliver for obtaining step S2 successively pass through combing, drafting, rove and spun yarn, obtain with the complex yarn for spending grey effect.The color polypropylene nitrile nanofibre that electrostatic spinning is produced directly is mixed into primary colors cotton net by the present invention during cotton spinning cotton carding, finally using spinning process, can be produced a kind of with the special complex yarn for spending grey effect.Mixed process is simpler, efficient in present invention production, greatly shortens process flow, reduces costs.
Description
Technical field
The present invention relates to pattern gray yarn line technology field more particularly to a kind of producers with the complex yarn for spending grey effect
Method.
Background technique
Beyber yarn and dyed yarn are more traditional two major classes yarns, and dyed yarn is usually by beyber yarn with bobbin or reeled yarn
Mode dyes required color on overflow dyeing machine.And melange yarn is a kind of novel dyed yarn out newly developed, it is will to dye not
Same color, have natural fiber of different nature and chemical fibre it is blended made of yarn, by colour mixture can get beyber yarn and
The special color and service performance not having after true qualities dyeing yarn.Broadly, pattern gray yarn line is monochromatic melange yarn, and referring to will contaminate
At solid color fiber and essential color fiber it is blended made of yarn." pattern gray yarn " of narrow sense is by dying the fiber of black and this
Color fibre is blended to be formed, and is one of current most common melange yarn, because of the cigarette ashes after the similar burning of its appearance color, so
Intuitively it is known as pattern gray yarn, is also commonly called as " cigarette ash yarn ".
The color and property of pattern gray yarn are generally between beyber yarn and dyed yarn；From ingredient, pattern gray yarn have cotton or
The types such as Quality Pure Cotton Yarn Production, polyester.There is the fabric for spending grey effect made of being weaved with pattern gray yarn, be different from traditional solid color and knit
Object, colored woven fabric and PRINTED FABRIC, it has unique color and stylistic effects, is well received by consumers.
Currently, most widely used pure cotton pattern gray yarn and spending the production method of grey fabric to be: first cotton fiber is dyed,
This coloured staple in bulk and fibrinogen are subjected to a certain proportion of mixture, spinned using cotton carding, drafting, rove, spun yarn etc.
Process forms pure cotton pattern gray yarn, is made finally by weaving with the pure-cotton fabric for spending grey effect.Traditional pure cotton pattern gray yarn
In production process, need the processes such as to dye part staple in bulk, wash, dry, this allows for the production of entire pattern gray yarn
Period than conventional yarns to one times of the youthful and the elderly so that increased costs, are unfavorable for industrial scale application.
Summary of the invention
In view of this, the application's is designed to provide a kind of production method with the complex yarn for spending grey effect, this
Inventive method can produce to obtain it is a kind of with the complex yarn for spending grey effect, feel and characteristic are good, and with short production cycle,
Conducive to application.
The present invention provides a kind of production method with the complex yarn for spending grey effect, comprising the following steps:
S1, raw cotton staple fiber is subjected to opening and cleaning step, flock is made；
Dyestuff, polyacrylonitrile are mixed with solvent, obtain spinning mixed solution；
S2, the flock for obtaining step S1 carry out cotton carding, and during cotton carding forms primary colors cotton net, the mixing is spun
Silk solution carries out electrostatic spinning, keeps the coloured nanofiber to be formed and primary colors cotton net compound, compound sliver is made；
S3, the compound sliver for obtaining step S2 successively pass through combing, drafting, rove and spun yarn, obtain having and spend grey effect
The complex yarn of fruit.
Preferably, in the step S1, first polyacrylonitrile is dissolved in solvent, obtains polyacrylonitrile solution, backward institute
It states and dyestuff is added in polyacrylonitrile solution, obtain spinning mixed solution；In the polyacrylonitrile solution polyacrylonitrile concentration be 8~
12wt%；The mass percent of dyestuff is 0.2%~1% in the spinning mixed solution.
Preferably, in the step S1, the weight average molecular weight of the polyacrylonitrile is 80000~90000；The solvent is
N,N-dimethylformamide.
Preferably, in the step S1, the dyestuff being added in Xiang Suoshu polyacrylonitrile solution is commercial dyes, the dyestuff
Selected from reactive dye, disperse dyes, the dye of positive ion or acid dyes；Stirring and dissolving after addition dyestuff, it is molten to obtain blend spinning
Liquid.
Preferably, in the step S1, the temperature of the stirring and dissolving is 40 DEG C~60 DEG C, speed of agitator is 1000~
2000r/h, mixing time are 8~12h.
Preferably, in the step S2, the application voltage of the electrostatic spinning is 15~20kV；The spray of the electrostatic spinning
Distance of the head away from cotton net is 20~30cm；The speed of the cotton carding is 10~40m/min.
Preferably, in the step S2, the quality of the coloured nanofiber accounts for the 2%~5% of compound sliver quality.
Preferably, in the step S2, the environment temperature of the electrostatic spinning is 20~30 DEG C, humidity is 50%~
60%；The single nozzle raw silk percentage of cocoon of the electrostatic spinning is 60~100g/h.
It preferably, further include with cotton process in the step S1, before the opening and cleaning step；In the step S3, institute
Drafting is stated by 2~3.
Compared with prior art, cotton is made by opening and cleaning step first using raw cotton staple fiber as primary raw material in the present invention
Beam, and match the spinning mixed solution of system dye and polyacrylonitrile；Then, the present invention the flock carry out cotton carding while,
The spinning mixed solution is utilized into electrostatic spinning technique, the primary colors that coloured nanofiber is made and directly obtains with cotton carding
Cotton net is compound, and compound sliver is made；Finally, by compound sliver by combing, the road drafting Deng Hou spinning process, production is had
There is the complex yarn for spending grey effect.The present invention during cotton spinning cotton carding, directly electrostatic spinning is produced coloured poly- third
Alkene nitrile nanofibre is mixed into primary colors cotton net, finally using spinning process, can be produced one kind with special and be spent grey effect
Complex yarn.Mixed process is simpler, efficient in present invention production, greatly shortens process flow, reduces costs,
Suitable for industrial scale production application.The complex yarn that the present invention produces has the color effects and good hand for spending ash
Sense, and can be up to state standards in terms of yams and items.
In addition, not needing to carry out pre-treatment and washing etc. to fiber, no in the production process of the coloured nanofiber of the present invention
It only greatly shortens the production cycle and is more energy-saving and environmentally friendly compared to traditional loose stock dyeing method, this in industry has
There is very important meaning.
Detailed description of the invention
Fig. 1 is the production technological process of the complex yarn provided in an embodiment of the present invention for having and spending grey effect；
Fig. 2 is the scanning electron microscope (SEM) photograph of complex yarn prepared by the embodiment of the present invention 1；
Fig. 3 is the photo in kind of complex yarn prepared by the embodiment of the present invention 1.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of production methods with the complex yarn for spending grey effect, comprising the following steps:
S1, raw cotton staple fiber is subjected to opening and cleaning step, flock is made；
Dyestuff, polyacrylonitrile are mixed with solvent, obtain spinning mixed solution；
S2, the flock for obtaining step S1 carry out cotton carding, and during cotton carding forms primary colors cotton net, the mixing is spun
Silk solution carries out electrostatic spinning, keeps the coloured nanofiber to be formed and primary colors cotton net compound, compound sliver is made；
S3, the compound sliver for obtaining step S2 successively pass through combing, drafting, rove and spun yarn, obtain having and spend grey effect
The complex yarn of fruit.
Production method provided by the invention can be prepared a kind of with the complex yarn for spending grey effect, can partially solve to pass
The problems such as system pure cotton pattern gray yarn line production cycle is long, at high cost, pollutes environment, and the feel and characteristic of resulting complex yarn
Well, it can reach the effect comparable to purified cotton yarns.
Referring to Fig. 1, Fig. 1 is the technological process of production of the complex yarn provided in an embodiment of the present invention for having and spending grey effect
Figure.The embodiment of the present invention is mainly with raw cotton staple fiber (abbreviation cotton staple) for spinning material, using commercially available cotton staple.Root
According to spinning requirement, the characteristics of a variety of raw cotton staple fibers first can be distributed cotton, give full play to different raw cotton by the embodiment of the present invention, reach
To raising product quality, steady production, the effect for reducing cost.The present invention does not specially require the grade and length of cotton, excellent
Select length in the raw cotton of 30mm or more.
After distributing cotton, the embodiment of the present invention carries out opening and cleaning step, and cotton staple can be made to cotton roll or cotton clump.The opening picking
Process is usually the first procedure of spinning process, can be completed by combination plant that different types of picker forms shredding,
The tasks such as removal of impurities, mixing, coiled.Wherein, shredding is that the raw cotton fiber of compression is loosened into small flock, to clean and mixing creation
Condition is prepared to be separated into single fiber.Removal of impurities is to remove in raw cotton 40%~70% impurity while further loosening
(mainly cottonseed, sand etc.).Mixing is uniformly to be mixed raw cotton of various grades etc.；It can be made into uniform cotton roll or cotton
The flocks forms such as clump.The present invention is not particularly limited the opening and cleaning step, is using equipment and technique commonly used in the art
Can, made cotton roll is used for carding step.In some embodiments of the invention, raw cotton fiber selects L233A's
Cotton, the control of cotton roll percentage of impurity is 1% hereinafter, the uneven rate control of cotton roll is below 1% after opening picking.
It is to mix dyestuff, polyacrylonitrile and solvent also, the embodiment of the present invention includes the preparation section of dyestuff spinning solution
It closes, preparation obtains the spinning mixed solution of dyestuff and polyacrylonitrile.Specifically, polyacrylonitrile is first dissolved in molten by the embodiment of the present invention
In agent, polyacrylonitrile solution is obtained, then preferably during stirring, dyestuff is added in Xiang Suoshu polyacrylonitrile solution, obtains
To spinning mixed solution.
The present invention is to spray to obtain a kind of coloured acrylic fibers based nano-fiber by using the mode of electrostatic spinning, therein
Polymer raw material is polyacrylonitrile (PAN), is to be made by monomers acrylonitrile through Raolical polymerizable.In the embodiment of the present invention
In, the weight average molecular weight M of the polyacrylonitrilewIt is 80000~90000, preferably 85000；The solvent is preferably N, N- bis-
Methylformamide (DMF).The embodiment of the present invention can stir evenly at room temperature, obtain polyacrylonitrile solution；Obtained poly- third
Polyacrylonitrile concentration is preferably 8~12wt% in alkene nitrile solution, more preferably 8~10wt%.
After obtaining polyacrylonitrile solution, dyestuff is added in the embodiment of the present invention thereto, can stirring and dissolving at a certain temperature,
Obtain spinning mixed solution.Wherein, the mass percent of dyestuff is preferably 0.2~1% in the spinning mixed solution；Dyestuff
Mass percent is the mass ratio for accounting for entire spinning mixed solution.The embodiment of the present invention has selected common activity dye in business
Material, disperse dyes, the dye of positive ion or acid dyes, these commercial dyes dissolve in DMF equal solvent, and production electrostatic spinning has
Color acrylic fiber.The present invention is not particularly limited the color etc. of the dyestuff, can be using red reactive dyes or dispersion dye
Material.After dyestuff is added in the embodiment of the present invention, preferred stirring and dissolving；The temperature of the stirring and dissolving is preferably 40 DEG C~60 DEG C.Institute
The revolving speed for stating stirring can be 1000~2000r/h, and mixing time is 8h~12h, obtain spinning mixed solution.
The flock that the embodiment of the present invention obtains above-mentioned opening and cleaning step carries out cotton carding；Carding step is usually to utilize cover board
Formula or roller type carding machine, move by dial, are single fiber state the combing of small flock, further remove impurity and can not spin
Staple fiber, so that fibers parallel is straightened to cotton net, be eventually fabricated sliver disk and enter in bar cylinder, to meet the requirement of later process.
The embodiment of the present invention carries out the electrostatic spinning of spinning mixed solution while raw cotton cotton carding, and with primary colors cotton net
It is compound.Specifically, electrostatic spinning nozzle is placed under carding machine by the embodiment of the present invention, and the blank cotton net that cotton carding is formed is (namely
Primary colors cotton net, in other words white cotton net) during carding machine operation, electrostatic spinning nozzle is ejected from bottom to top with face
The nanofiber of color is mixed in above-mentioned white cotton net, so that compound sliver be made.
The present invention produces colored fibre using electrostatic spinning, can effectively be combined with cotton fiber during cotton spinning, serialization
Pattern gray yarn is produced, without additionally increasing extra process, does not also need to carry out washing etc. processing, mixed process letter to coloured fibre
It is single, efficient, easy-regulating, energy conservation and environmental protection.Simultaneously as the fiber that Static Spinning gushes out is nanoscale, there is high specific surface
Product can reach using the coloured nanofiber of minor proportion and significantly spend grey effect, and it is good to have complex yarn
Feel and characteristic.
Wherein, the electrospinning device includes power supply unit, injection spinneret unit, receiving unit etc..Of the invention
In embodiment, the application voltage of the electrostatic spinning can be 15~20kV.Distance of the spray head of the electrostatic spinning away from cotton net is excellent
It is selected as 20cm~30cm, is effectively combined conducive to electrostatic spinning nano fiber silk with cotton fiber net.Static Spinning described in the embodiment of the present invention
The environment temperature of silk is 20~30 DEG C, preferably 25 DEG C；Ambient humidity is 50%~60%.The single nozzle of the electrostatic spinning goes out
Silk amount can be 60~100g/h；The speed (i.e. the speed of service of carding machine) of the cotton carding is preferably 10~40m/min, relatively more suitable
Close bulk production production.In some embodiments of the invention, the quality of the coloured nanofiber account for compound sliver quality 2%~
5%, conducive to complex yarn of good performance is obtained.The coloured nanofiber specifically how much measure be according to the speed of carding machine,
Spray head number and single nozzle spinneret amount determine；Carding machine speed is lower, spray head number is more, single nozzle spinneret amount more
Greatly, nanofiber accounting is bigger.
After obtaining compound sliver, yarn is made in road spinning process after the embodiment of the present invention is carried out, i.e., successively by essence
Comb, drafting, rove and spun yarn are obtained with the complex yarn for spending grey effect.Wherein, combing is the cotton spinning process of exquisite combing,
It removes shorter fiber and impurity in cotton fiber and leaves longer and neat fiber, spin the more stable yarn of quality so as to subsequent
Line.
The drafting is by continuous strip semi-finished product (i.e. strip, the also known as carded sliver) made of preceding processes and to close, and is improved
Bar evenness and fiber condition；The main task of mixing in doubling step has and closes, drawing-off, mixing, at item.In the embodiment of the present invention
In, after combing, generally carry out 2~3 draftings.Sliver after drafting is carried out rove and spun yarn by the embodiment of the present invention, is answered
Yarns.The technology that the spinning process such as the rove, spun yarn are well known to those skilled in the art, the application have no special limit
System.
Complex yarn produced by the present invention spends grey effect with special, and feel and characteristic are good.The some realities of the present invention
The coloured nanofiber accounting very little of acrylic fibers base in example is applied, such as accounts for the 2%~5% of complex yarn quality, not only spends grey effect in this way
Fruit clearly, and can reach the feel and characteristic of purified cotton yarns, be conducive to application.The method of the present invention shortens the production cycle,
Production cost is reduced, influence of the pure cotton pattern gray yarn production process to environment is also reduced, has very important significance.
For a further understanding of the application, below with reference to embodiment to provided by the invention a kind of with spending grey effect to answer
The production method of yarns is specifically described.
In following embodiment, the grade of related raw cotton staple fiber is L233A, the i.e. long-staple cotton of 33mm, is purchased from Henan
Xinye Textile Co., Ltd..
Embodiment 1
A kind of produce described in the present embodiment spends the method for grey effect complex yarn as follows:
(1) raw cotton staple fiber is distributed cotton, carries out opening and cleaning step later, uniform cotton roll is made.Cotton roll contains after opening picking
Miscellaneous rate control is 1% hereinafter, the uneven rate control of cotton roll is below 1%.
By polyacrylonitrile (specification Mw=85000) it is dissolved in n,N-Dimethylformamide, stirs evenly at room temperature, gathered
Acrylonitrile solution；Wherein, polyacrylonitrile solution concentration is 10wt%；During stirring, add in Xiang Suoshu polyacrylonitrile solution
Enter reactive dye Nowe and clone red FN-2BL (Huntsman company), the mass percent of dyestuff is 0.8%, is stirred at 40 DEG C
Dissolution, speed of agitator 2000r/h, mixing time 10h obtain spinning mixed solution.
(2) flock for obtaining above-mentioned opening and cleaning step carries out cotton carding (using flat caiding machine), in the same of raw cotton cotton carding
When, carry out the electrostatic spinning of spinning mixed solution.Electrostatic spinning nozzle is placed under carding machine, blank cotton net is run in carding machine
During, electrostatic spinning nozzle from bottom to top will be compound with coloured nanofiber and white cotton net, and compound sliver is made；
Wherein, it is 20kV that electrostatic spinning, which applies voltage, and environment temperature is 25 DEG C, and humidity 60%, spray head is with a distance from cotton net
25cm, single nozzle raw silk percentage of cocoon are 80g/h, and the speed of service of carding machine is 30m/min；The quality of the coloured nanofiber accounts for multiple
Close the 3% of sliver quality.
(3) sliver obtained in step (2) is had using combing, 2~3 draftings, rove, spinning process
Spend the complex yarn of grey effect.
The stereoscan photograph of the complex yarn is referring to fig. 2, wherein and thinner fiber is Static Spinning colored fibre, compared with
Thick is cotton fiber.The complex yarn spends grey effect as shown in figure 3, Fig. 3 is its photo in kind.The line of the complex yarn
Density is 28tex, and performance is referring to table 1:
The performance of complex yarn in 1 embodiment 1 of table
As can be seen from the above results, Static Spinning compound flower ash yarn of the present invention compares the purified cotton yarns of close specification,
Breaking strength, initial modulus and the uneven rate of yarn evenness etc. difference are little.
Continue that the complex yarn of ash will be spent to pass through weaving-desizing-pickling-drying-postfinishing process processing, finished product face
(fabric grammes per square metre is about 180g/m to material2)。
Wherein, desizing formula and technique are as follows: with the bath raio of 1:8, using (the Guangdong degreaser DM-1133 containing 0.8g/L
Dolantin Fine Chemical Co., Ltd), 2g/L mass concentration be 50% NaOH and 1.5g/L specification be 27.5% H2O2Solution
Inorganic agent, carry out desizing under conditions for the treatment of temperature is 105 DEG C, the processing time is 30min.Pickling formula and technique: with
The bath raio of 1:8, using the inorganic agent containing 0.5g/L HAC, under conditions for the treatment of temperature is 50 DEG C, the processing time is 5min
It is neutralized.
Final finishing formula and technique: using containing 50g/L silicone oil softener ULtratex STS (Huntsman company),
The anti-needle hole agent Sapamine SEW of 20g/L (Huntsman company), 1g/L bleeding agent FKS (Dongguan Xian Qiao auxiliary agent Co., Ltd)
Inorganic agent carries out shaping under conditions of speed is 18m/min, treatment temperature is 160 DEG C.
Obtained finished fabric is subjected to color fastness test, as a result as follows:
The fastness properties of fabric made of 2 embodiment of table, 1 gained complex yarn
It can be seen that yarn that this spends grey effect from the above test result and fabric items color fastness reach national mark
It is quasi-.
Embodiment 2
A kind of produce described in the present embodiment spends the method for grey effect complex yarn as follows:
(1) raw cotton staple fiber is distributed cotton, carries out opening and cleaning step later, uniform cotton roll is made；Cotton roll contains after opening picking
Miscellaneous rate control is 1% hereinafter, the uneven rate control of cotton roll is below 1%.
By polyacrylonitrile (specification Mw=85000) it is dissolved in n,N-Dimethylformamide, stirs evenly at room temperature, gathered
Acrylonitrile solution；Wherein, polyacrylonitrile solution concentration is 8wt%；During stirring, it is added in Xiang Suoshu polyacrylonitrile solution
The red as fire WW-GS of disperse dyes TERASIL (huntsman company), the mass percent of dyestuff are 0.5%, are stirred at 60 DEG C molten
Solution, speed of agitator 2000r/h, mixing time 12h obtain spinning mixed solution.
(2) flock for obtaining above-mentioned opening and cleaning step carries out cotton carding (using flat caiding machine), in the same of raw cotton cotton carding
When, carry out the electrostatic spinning of spinning mixed solution.Electrostatic spinning nozzle is placed under carding machine, blank cotton net is run in carding machine
During, electrostatic spinning nozzle from bottom to top will be compound with coloured nanofiber and white cotton net, and compound sliver is made；
Wherein, it is 15kV that electrostatic spinning, which applies voltage, and environment temperature is 25 DEG C, and humidity 60%, spray head is with a distance from cotton net
20cm, single nozzle raw silk percentage of cocoon are 100g/h, and the speed of service of carding machine is 40m/min；The quality of the coloured nanofiber accounts for
The 2.5% of compound sliver quality.
(3) sliver obtained in step (2) is had using combing, 2~3 draftings, rove, spinning process
Spend the complex yarn of grey effect, yarn linear density 18.5tex.
As seen from the above embodiment, the present invention directly produces electrostatic spinning coloured during cotton spinning cotton carding
Polyacrylonitrile nanofiber is mixed into primary colors cotton net, finally using spinning process, can be produced one kind with special and be spent ash
The complex yarn of effect.Mixed process is simpler, efficient in present invention production, greatly shortens process flow, reduces
Cost is suitable for industrial scale production application.In addition, not needing in the production process of the coloured nanofiber of the present invention to fiber
Pre-treatment and washing etc. are carried out, the production cycle is not only greatly shortened but also compares traditional loose stock dyeing method more
Energy conservation and environmental protection.The complex yarn that the present invention produces has the color effects for spending ash and good feel, and advises in yarn
Lattice and every color fastness etc. can be up to state standards.
The description of above instructions and embodiment is used to explain the present invention protection scope, but does not constitute and protect to the present invention
Protect the restriction of range.Through the invention or the enlightenment of above-described embodiment, those of ordinary skill in the art combine common knowledge, ability
The ordinary technical knowledge and/or the prior art in domain, it is available right by logical analysis, reasoning or limited test
Modification, equivalent replacement or the other improvements of the embodiment of the present invention or in which a part of technical characteristic, should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of production method with the complex yarn for spending grey effect, comprising the following steps:
S1, raw cotton staple fiber is subjected to opening and cleaning step, flock is made；
Dyestuff, polyacrylonitrile are mixed with solvent, obtain spinning mixed solution；
S2, the flock for obtaining step S1 carry out cotton carding, during cotton carding forms primary colors cotton net, the blend spinning is molten
Liquid carries out electrostatic spinning, keeps the coloured nanofiber to be formed and primary colors cotton net compound, compound sliver is made；
S3, the compound sliver for obtaining step S2 successively pass through combing, drafting, rove and spun yarn, obtain having and spend grey effect
Complex yarn.
2. production method according to claim 1, which is characterized in that in the step S1, be first dissolved in polyacrylonitrile molten
In agent, obtain polyacrylonitrile solution, the backward polyacrylonitrile solution in dyestuff is added, obtain spinning mixed solution；It is described
Polyacrylonitrile concentration is 8~12wt% in polyacrylonitrile solution；The mass percent of dyestuff is in the spinning mixed solution
0.2%~1%.
3. production method according to claim 2, which is characterized in that in the step S1, the weight of the polyacrylonitrile is equal
Molecular weight is 80000~90000；The solvent is N,N-dimethylformamide.
4. production method according to claim 2, which is characterized in that in the step S1, Xiang Suoshu polyacrylonitrile solution
The dyestuff of middle addition is commercial dyes, and the dyestuff is selected from reactive dye, disperse dyes, the dye of positive ion or acid dyes；Add
Enter stirring and dissolving after dyestuff, obtains spinning mixed solution.
5. production method according to claim 4, which is characterized in that in the step S1, the temperature of the stirring and dissolving
It is 40 DEG C~60 DEG C, speed of agitator is 1000~2000r/h, and mixing time is 8~12h.
6. production method according to any one of claims 1 to 5, which is characterized in that in the step S2, the electrostatic
The application voltage of spinning is 15~20kV；Distance of the spray head of the electrostatic spinning away from cotton net is 20~30cm；The cotton carding
Speed is 10~40m/min.
7. production method according to claim 6, which is characterized in that in the step S2, the coloured nanofiber
Quality accounts for the 2%~5% of compound sliver quality.
8. production method according to claim 7, which is characterized in that in the step S2, the environment of the electrostatic spinning
Temperature is 20~30 DEG C, and humidity is 50%~60%；The single nozzle raw silk percentage of cocoon of the electrostatic spinning is 60~100g/h.
9. production method according to any one of claims 1 to 5, which is characterized in that in the step S1, the opening or cleaning
It further include with cotton process before cotton process；In the step S3, the drafting passes through 2~3.
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