CN103572448A - Method for preparing nano-fiber blending composite yarn - Google Patents
Method for preparing nano-fiber blending composite yarn Download PDFInfo
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- CN103572448A CN103572448A CN201310586642.XA CN201310586642A CN103572448A CN 103572448 A CN103572448 A CN 103572448A CN 201310586642 A CN201310586642 A CN 201310586642A CN 103572448 A CN103572448 A CN 103572448A
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Abstract
The invention relates to a method for preparing nano-fiber blending composite yarn. The method comprises the steps that (1) a functional high-molecular polymer is dissolved in a corresponding solvent to obtain an even electrostatic spinning solution; (2) traditional spinning, including cotton carding, is carried out on short fibers; (3) electrostatic spinning is carried out on the electrostatic spinning solution by means of a TAYLOR cone multi-spray-head electrostatic spinning machine, wherein spinning jet flows are directly sprayed upwards onto fleece which is about to become sliver and formed in the cotton carding process, then fleece containing nano-fibers is obtained, the fleece containing the nano-fibers enters the next yarn forming process directly after becoming the sliver, and finally the nano-fiber blending composite yarn is obtained. The preparing method is simple. The nano-fiber blending composite yarn prepared through the combination of the electrostatic spinning technique and the traditional spinning technique is functional to a certain degree, belongs to nano-textile in the true sense, and is capable of improving the additional value of a product.
Description
Technical field
The invention belongs to the preparation field of blending complex yarn, particularly a kind of preparation method of nanofiber blending complex yarn.
Background technology
In recent years, along with the raising of people's living standard, also more and more higher to the Functional Requirement of textile garment when paying close attention to textiles comfortableness, the yarn of nanometer concept is constantly proposed and is come into one's own.So-called nano-function textile just adopts nano-functional material fabric is carried out to rear arrangement and obtain mostly in the market.According to our retrieval, also do not contain in the market the yarn of nanofiber.
Static Spinning technology is at present uniquely can directly, continuously, efficiently prepare the method for polymer nanofiber, and, processing ease simple with its equipment, material source are extensively, technical process do not destroy the focus that the good characteristics such as material body become nanofiber research.Electrostatic spinning is suitable for most of Polymer Solutions, the nanofiber being made by method of electrostatic spinning has less diameter and very large specific area, make fiber there is the performance of multiple uniqueness, in fields such as biomedicine, air filtration, safety clothings, have huge application potential.
Traditional fibre diameter is thicker, and draw ratio is low, and specific area is little.For traditional fibre is given certain functional how acquisition by adding the approach such as certain functional materials in physics and chemistry modifications, the collocation of resultant yarn component and the technique adjustment of fiber surface, the variation of fabric structure and last handling process.These modes exist that fibre modification difficulty is high, resultant yarn and weaving process complex process, cost is high and functions expanding is limited shortcoming, in addition, to the functional materials adding in textiles also there is regular period dress, use after the function defect that cannot keep for a long time.
By add functional nano fiber in traditional fibre, can make up above-mentioned problem.For example, by add all kinds of antiseptics in Static Spinning polymer nanofiber, preparation has the new function polymer nano material of excellent anti-microbial property; In polymer solution, adding the nanofibers that a certain proportion of predetermined substance is spun into by Static Spinning can electromagnetic wave absorption.In like manner, add other material corresponding with the purpose of design of final products, and the final nanofiber blending complex yarn with certain function that forms in similar said process.By thering is functional nanofibers, in certain link of traditional fibre resultant yarn process, sneak into, and along with resultant yarn process continues until the final blending complex yarn that contains functional nano fiber that obtains.
Conventional electrostatic spining technology output is lower; cannot meet industrialized production and application; utilize < < TAYLOR cone multiple spray head static spinning machine > > (application number 200710172744.1; open day 2008.07.02; publication number 101210352) can solve the problem that traditional spining technology yields poorly, realize the large-scale production of electrostatic spinning nano fiber.In addition, common electrostatic spinning nano fiber, because the particularity of its preparation method mostly exists with random nonwoven fabric form, cannot directly be utilized by traditional textile process equipment.At present existing scholar's research goes out to utilize electrospinning device preparing nano yarn, but the simple general brute force of the nanometer yarn that utilizes Static Spinning equipment to prepare is lower, cannot meet its application on some specific area especially textile garment.And Static Spinning nanometer yarn is had relatively high expectations to polymer solution, and be not suitable for various high polymers.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of preparation method of nanofiber blending complex yarn, the method is by being combined electrostatic spinning technique with traditional spinning technique, the nanofiber blending complex yarn making is due to the functional nano fiber that contains certain content, yarn is had certain functional, belong to nano-fabric truly, can improve value-added content of product.
The preparation method of a kind of nanofiber complex yarn of the present invention, comprising:
(1) will have functional high molecular polymer is dissolved in and in coordinative solvent, makes uniform electrostatic spinning solution;
(2) short fiber is carried out to traditional spinning process, described traditional spinning process comprises carding step; The electrostatic spinning solution that step (1) is obtained adopts TAYLOR cone multiple spray head static spinning machine to carry out electrostatic spinning, and wherein spinning jet is directly upwards sprayed onto on the web that is about to slivering in described carding step, obtains the web that contains nanofiber;
(3) the above-mentioned web that contains nanofiber is directly entered after slivering after road resultant yarn operation, finally obtain the continuous blending complex yarn that contains functional nano fiber.
Short fiber described in step (2) is purifying fibre or textile short fiber or the fine blending short fiber of cottonizing.
Traditional spinning process described in step (2) comprises successively: distribute cotton, grab cotton, opening picking, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn.
Disclosed TAYLOR cone multiple spray head static spinning machine (application number 200710172744.1, open day 2008.07.02) in TAYLOR cone multiple spray head static spinning machine Chinese patent CN101210352A described in step (2).
In step (2) operating process, guarantee that short fiber carries out the continuous production of traditional spinning process simultaneously.
The TAYLOR cone multiple spray head static spinning machine that step (2) is described, comprising: TAYLOR bores many shower nozzles, HV generator, high polymeric solution and liquid feed device, catheter, connecting line, reception pole plate and earth connection; TAYLOR bore many shower nozzle one sides by catheter by liquid feed device feed flow, opposite side connects HV generator by connecting line.
In the described electrostatic spinning of step (2), to bore the top of many shower nozzles be 0.1cm～100cm with the distance adjustment scope that receives pole plate lower surface to TAYLOR, and output voltage range is 0～100kV.
The top that in electrostatic spinning described in step (2), TAYLOR bores many shower nozzles is lower than web, receive pole plate lower surface higher than web, topping roll and the bottom roll of carding machine inside are sent web with certain speed, be combined with continuous spun nanofiber, finally the web that contains nanofiber obtaining continued to enter into rear road spinning process.
The various operations of in the present invention, the short fiber of the first raw material being spinned through tradition, be followed successively by through distributing cotton, grab cotton, opening picking, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn, be that short fiber resultant yarn process is continuous and independent, can't be spun into certain link in resultant yarn process and affect, change the spinning suiting of traditional fibre and the continuity of spinning process because of adding with electrostatic spinning nano fiber of electrostatic spinning device.
In the present invention, spinning solution is extruded through liquid feed device on TAYLOR cone multiple spray head static spinning machine, open HV generator, under high voltage electrostatic field, form a large amount of spinning jets, spinning jet is directly upwards sprayed onto on the web that is about to slivering in carding step, spinning jet finally forms nanometer fiber net through solvent evaporates on web, road resultant yarn operation after the web that contains nanofiber directly enters after slivering, finally obtains the continuous blending complex yarn that contains functional nano fiber.
Nanofiber blending complex yarn of the present invention contains two kinds of raw materials, and a kind of is common short fiber, the another kind of functional nano fiber of making through electrostatic spinning technique for high polymeric solution; The former passes through traditional spinning process continuously, comprises resultant yarn after opening picking, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn.In carding step, utilize TAYLOR cone multiple injector electrostatic spinning device to carry out electrostatic spinning on the web of soon slivering, and then the web that contains functional nano fiber enters next procedure, guarantees the continuity of producing simultaneously.
Common short fiber in the present invention can, for purifying is fine or textile or both blending short fibers, can be made adjustment to raw material type according to product needed; High polymeric solution can require to select according to product functionality, and two kinds of raw materials are all not limited to certain particular types.
The invention provides and a kind of Static Spinning technology is prepared to nanofiber with the method that traditional spinning technique combines, the nanofiber complex yarn that exploitation obtains will also increase the unrivaled premium properties of nanofiber outside the performance retaining traditional yarn, can improve the added value of product of traditional yarn, solved the low problem of common yarn added value of product, improve traditional yarn product quality, and provide Application Areas widely for it.In addition, the introducing of nanofiber can't affect production procedure, output and the efficiency of traditional yarn, guaranteed the continuous of traditional fibre resultant yarn process and electrostatic spinning device spinning process, the useful combination of a kind of nanofiber and traditional fibre, for electrostatic spinning nano fiber to providing of traditional textile field brand-new thinking and trial.
Beneficial effect:
Preparation method of the present invention is simple, and by electrostatic spinning technique is combined with traditional spinning technique, the nanofiber blending complex yarn making has certain functional, belongs to nano-fabric truly, can improve value-added content of product.Exploitation by the thread functional textile of this yarn will have good market early stage and economic benefit.
Accompanying drawing explanation
Fig. 1 is nanofiber blending complex yarn process chart of the present invention;
Fig. 2 is that the present invention utilizes TAYLOR cone multiple injector electrostatic spinning device to carry out electrostatic spinning schematic diagram on the web of soon slivering;
Fig. 3 is the web that contains nanofiber that the present invention obtains;
Fig. 4 is the blending complex yarn that the contains nanofiber surface that the present invention obtains.
Attached number in the figure explanation:
1. topping roll; 2. lower compression roller; 3. receive pole plate; 4. web; 5. nanofibers; 6.TAYLOR bores multiple spray head static spinning machine; 7. HV generator; 8. liquid feed device; 9. earth connection; 10. catheter; 11. connecting lines; 12. earth connections.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
Adopt common cotton short fiber, polymer adopts polyacrylonitrile.
(1) will adopt polyacrylonitrile (molecular weight 75000) to be dissolved in dimethylacetylamide (DMAc) and make uniform electrostatic spinning solution;
(2) common short fiber is carried out to traditional spinning process, described traditional spinning process comprises carding step; As shown in Figure 1, the electrostatic spinning solution that step (1) is obtained moves in TAYLOR cone multiple spray head static spinning machine liquid feed device 8, carry out electrostatic spinning, with TAYLOR cone multiple spray head static spinning machine 6, to being not yet spun into polyacrylonitrile nanofiber 5 on the web 4 of slivering in comb and parallel cotton fibers prior to spinning link, obtain the web that contains nanofiber;
(3) the above-mentioned web that contains nanofiber is directly entered after slivering after road resultant yarn operation, finally obtain the continuous blending complex yarn that contains functional nano fiber.
Take common carding machines as example, thickness and the output speed of feeding cotton rolling quantity, top and bottom rolls (1 and 2) rotating speed co-controlling web 4.The parameters such as the distance of voltage, shower nozzle and the web of adjustment TAYLOR cone multiple spray head static spinning machine 6 and liquid supply speed, match with lap fabric width and gait of march, guarantee distribution, the content of electrostatic spinning nano fiber on web, avoid the entanglement between nanofiber, guarantee the abundant volatilization of solvent.
Embodiment 2
Adopt the method identical with embodiment 1, wherein short fiber adopts viscose short fiber, and polymer adopts polyurethane.
(1) employing polyurethane is dissolved in dimethyl formamide (DMF) and makes uniform electrostatic spinning solution;
(2) common viscose short fiber is carried out to traditional spinning process, described traditional spinning process comprises carding step; As shown in Figure 1, the electrostatic spinning solution that step (1) is obtained moves in TAYLOR cone multiple spray head static spinning machine liquid feed device 8, carry out electrostatic spinning, with TAYLOR cone multiple spray head static spinning machine 6, to being not yet spun into polyurethane nanofiber 5 on the viscose short fiber net 4 of slivering in comb and parallel cotton fibers prior to spinning link, obtain the viscose short fiber net that contains nanofiber;
(3) the above-mentioned viscose short fiber net that contains nanofiber is directly entered after slivering after road resultant yarn operation, finally obtain the continuous blending complex yarn that contains polyurethane nanofiber.
Adopt the method identical with embodiment 1, wherein short fiber adopts terylene short fiber, and polymer adopts polyacrylonitrile.
(1) employing polyacrylonitrile is dissolved in dimethylacetylamide (DMAc) and makes uniform electrostatic spinning solution;
(2) ordinary polyester short fiber is carried out to traditional spinning process, described traditional spinning process comprises carding step; As shown in Figure 1, the electrostatic spinning solution that step (1) is obtained moves in TAYLOR cone multiple spray head static spinning machine liquid feed device 8, carry out electrostatic spinning, with TAYLOR cone multiple spray head static spinning machine 6, to being not yet spun into polyacrylonitrile nanofiber 5 on the terylene short fiber net 4 of slivering in comb and parallel cotton fibers prior to spinning link, obtain the terylene short fiber net that contains nanofiber;
(3) the above-mentioned terylene short fiber net that contains nanofiber is directly entered after slivering after road resultant yarn operation, finally obtain the continuous blending complex yarn that contains polyacrylonitrile nanofiber.
Claims (6)
1. a preparation method for nanofiber complex yarn, comprising:
(1) will have functional high molecular polymer is dissolved in and in coordinative solvent, makes uniform electrostatic spinning solution;
(2) short fiber is carried out to traditional spinning process, described traditional spinning process comprises carding step; The electrostatic spinning solution that step (1) is obtained adopts TAYLOR cone multiple spray head static spinning machine to carry out electrostatic spinning, and wherein spinning jet is directly upwards sprayed onto on the web that is about to slivering in described carding step, obtains the web that contains nanofiber;
(3) the above-mentioned web that contains nanofiber is directly entered after slivering after road resultant yarn operation, finally obtain nanofiber complex yarn.
2. the preparation method of a kind of nanofiber complex yarn according to claim 1, is characterized in that: the short fiber described in step (2) is purifying fibre or textile short fiber or the fine blending short fiber of cottonizing.
3. the preparation method of a kind of nanofiber complex yarn according to claim 1, is characterized in that: the traditional spinning process described in step (2) comprises successively: distribute cotton, grab cotton, opening picking, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn.
4. the preparation method of a kind of nanofiber complex yarn according to claim 1 is characterized in that: in step (2) operating process, guarantee that short fiber carries out the continuous production of traditional spinning process simultaneously.
5. the preparation method of a kind of nanofiber complex yarn according to claim 1, it is characterized in that: in the described electrostatic spinning of step (2), to bore the top of many shower nozzles (6) be 0.1cm～100cm with the distance adjustment scope that receives pole plate (3) lower surface to TAYLOR, and output voltage range is 0～100kV.
6. the preparation method of a kind of nanofiber complex yarn according to claim 1, it is characterized in that: the top that in the electrostatic spinning described in step (2), TAYLOR bores many shower nozzles (6) is lower than web, receive pole plate lower surface higher than web, the topping roll of carding machine inside (1) and bottom roll (2) are sent web, be combined with continuous spun nanofiber, finally the web that contains nanofiber obtaining continued to enter into rear road spinning process.
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| CN105332131A (en) * | 2015-12-04 | 2016-02-17 | 江南大学 | Method for preparing acetic acid nano fiber/polyester filament composite yarn |
| CN105926088A (en) * | 2016-06-15 | 2016-09-07 | 湖北枫树线业有限公司 | Equipment and method of improving card silver quality through single-row-nozzle moving type electrostatic spinning method |
| CN105926054A (en) * | 2016-06-15 | 2016-09-07 | 武汉纺织大学 | Equipment of improving card silver quality through net supporting plate to guide electrostatic spinning and using method |
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