CN107904732B - Device and method for preparing electrostatic spinning submicron fiber and cotton sliver composite blended yarn - Google Patents
Device and method for preparing electrostatic spinning submicron fiber and cotton sliver composite blended yarn Download PDFInfo
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- CN107904732B CN107904732B CN201711439289.7A CN201711439289A CN107904732B CN 107904732 B CN107904732 B CN 107904732B CN 201711439289 A CN201711439289 A CN 201711439289A CN 107904732 B CN107904732 B CN 107904732B
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- electrostatic spinning
- sliver
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- submicron
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
Abstract
The invention discloses a device and a method for preparing an electrostatic spinning submicron fiber/cotton sliver composite blended yarn. The preparation device comprises a drawing frame and an electrostatic spinning device, the electrostatic spinning device comprises needle-free electrostatic spinning nozzles and receiving polar plates, the needle-free electrostatic spinning nozzles are respectively positioned on two sides of the sliver, and the needle-free electrostatic spinning nozzles are connected with a high-voltage generator; the liquid storage bottle is communicated with the needleless electrostatic spinning nozzle. The preparation method comprises the following steps: opening the control valve and the liquid supply pump to enable the spinning liquid in the liquid storage bottle to flow into the needle-free electrostatic spinning nozzle; and opening the drawing frame, connecting the high-voltage generator with the needle-free electrostatic spinning nozzle, opening the high-voltage generator, spraying a plurality of jet flows from the needle-free electrostatic spinning nozzle, volatilizing the solvent in the process that the jet flows fly to the receiving polar plate, stretching and solidifying the high polymer to form submicron fibers, and depositing the submicron fibers on the sliver. The invention can realize the mixing of electrostatic spinning submicron fiber and traditional textile fiber, and applies the functional characteristics of the submicron fiber to the traditional textile.
Description
Technical Field
The invention relates to a combination of an electrostatic spinning process and a drawing process, in particular to a device and a method for preparing composite blended yarns of electrostatic spinning sub-micron fiber cotton slivers, which are used for modifying a drawing frame to enable electrostatic spinning equipment to be applied to the drawing frame, and belong to the technical field of electrostatic spinning.
Background
In recent years, with the continuous popularization of nanotechnology, the application of nanotechnology has penetrated into the aspects of our lives, with the maturity of submicron fiber manufacturing technology represented by electrostatic spinning, submicron fiber technology has been gradually applied to the fields of high-performance filtration, special-function fabrics, medical application and the like, and the application of electrostatic spinning technology to traditional textiles has little research on the real realization of the combination of submicron fibers and traditional textile fibers.
The surface effect and the size effect of the submicron fiber endow the related products with excellent performance, the electrostatic spinning solution is a simple and effective method for preparing the submicron fiber through electrostatic spinning equipment, the functional composite yarn can be obtained by combining the electrostatic spinning equipment and a drawing frame, the excellent performance of the submicron fiber is increased on the basis of keeping the performance of the conventional yarn, and the effect of improving the added value of industrial products is achieved.
The patent with application number 201610847425.5 published by the Chinese patent office 2016, 9, 21 and named as a nanometer electrostatic spinning and short fiber ring spinning yarn forming method is characterized in that a single-needle electrostatic spinning device is arranged between a yarn guide hook and a front jaw consisting of a front roller and a front rubber roller of a ring spinning frame, so that the submicron fiber and the traditional textile fiber are mixed, but in the actual use process, the method is found to have the following defects that a nozzle downwards sprays to cause spinning liquid to be dripped on the yarn or a machine so as to influence the normal yarn forming, the use yield on the spinning frame is low, and the submicron fiber is finely wrapped on the traditional yarn and falls off in the subsequent use process. The patent with the application number of 201310586642.X published by the Chinese patent office on 11/20/2013 is named as a preparation method of a submicron fiber blended composite yarn, which is characterized in that electrostatic spinning jet flow is sprayed on a cotton net to be slitted in a carding process to realize the compounding of submicron fibers and cotton fibers, but in the actual use process, the fact that the fiber net on a carding machine is overlapped among fibers is found to be applied to the carding machine, the fiber net is thin and easy to break, the carding machine needs to be modified with high cost, the mixing of traditional fibers and submicron fibers can be realized on the drawing machine, and the submicron fibers are thin and are wrapped by the traditional textile fibers in the composite yarn, so that the function of the composite yarn is maintained.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device capable of realizing electrostatic spinning on a drawing frame, which can realize the compounding of sub-micron fibers of the electrostatic spinning and traditional textile fibers on the drawing frame so as to obtain functional composite yarns.
In order to solve the problems, the invention provides a preparation device of an electrostatic spinning submicron fiber/cotton sliver composite blended yarn, which comprises a drawing frame, wherein the drawing frame comprises a feeding barrel, and slivers in the feeding barrel sequentially pass through a sliver guide roller, a sliver guide rod, a feeding roller and a drafting roller and then fall into the barrel through a sliver looping device; the liquid storage bottle is sequentially communicated with a liquid supply pump, a solution buffer, a control valve and a needle-free electrostatic spinning nozzle through a corrosion-resistant insulating liquid conveying pipe; the needle-free electrostatic spinning nozzle is fixed on the base.
Preferably, the liquid storage bottle is a glass wide-mouth bottle, and a corrosion-resistant insulating plug is arranged at the mouth of the bottle; the corrosion-resistant insulating infusion tube is a polytetrafluoroethylene hose; the solution buffer and the base are made of polytetrafluoroethylene.
Preferably, the control valve adopts a pulley type flow regulator.
Preferably, the filament outlet diameter of the needle-free electrostatic spinning nozzle is the width of the sliver.
Preferably, the receiving plate is vertically spaced from the sliver by 5-20 mm.
The invention also provides a preparation method of the electrostatic spinning submicron fiber/cotton sliver composite blended yarn, which is characterized in that the preparation device of the electrostatic spinning submicron fiber/cotton sliver composite blended yarn comprises the following steps:
step 1): opening the control valve and the liquid supply pump to enable the spinning liquid in the liquid storage bottle to flow into the needle-free electrostatic spinning nozzle through the corrosion-resistant insulating liquid conveying pipe;
step 2): after the spinning solution enters a needle-free electrostatic spinning nozzle, a drawing frame is opened, so that slivers fed into a sliver barrel enter a feeding roller through a sliver guide roller and a sliver guide rod, the slivers are fed into a drafting roller by the feeding roller, and the slivers passing through the drafting roller enter a sliver coiler and fall into the sliver barrel;
step 3): the positive pole of a high-voltage generator is connected with a needle-free electrostatic spinning nozzle through a high-voltage resistant wire, the high-voltage generator is opened, voltage is slowly increased, a plurality of jet flows are sprayed out of the needle-free electrostatic spinning nozzle immediately, in the process that the jet flows fly to a receiving polar plate, a solvent is volatilized, a high polymer is stretched and solidified, submicron fibers are formed and deposited on strips moving from the lower part of the receiving polar plate, and the submicron fibers and the strips are mixed under the action of a drawing roller.
Preferably, in the step 3), the distance from the needle-free electrostatic spinning nozzle to the receiving polar plate is adjusted, so that the filament outlet diameter of the needle-free electrostatic spinning nozzle is the width of the sliver.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention modifies the traditional drawing frame, which can realize the composition of submicron fiber and traditional textile fiber;
(2) the invention only adds a receiving polar plate at the feeding part of the drawing frame, and then installs the electrostatic spinning equipment below the receiving polar plate, the equipment is simple to transform and convenient to apply;
(3) the invention can realize the combination of the electrostatic spinning process and the traditional textile process, and is the continuous and batch industrial production of the combination of the functional submicron fiber and the traditional textile fiber;
(4) the sliver can use different types of traditional textile fibers, and has wide application range;
(5) the invention has low recognition degree to spinning equipment and spinning materials (solution and solvent), and has a plurality of available varieties.
Drawings
FIG. 1 is a schematic view of an apparatus for preparing an electrospun sub-micron fiber/sliver composite blended yarn provided by the present invention;
FIG. 2 is a schematic view of a pulley-type flow regulator;
fig. 3 is an optical microscope photograph of a tampon prepared according to the present invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, the device for preparing an electrospun submicron fiber/sliver composite blended yarn provided by the invention comprises a drawing frame, wherein the drawing frame comprises a feeding barrel 10, and a sliver 9 in the feeding barrel 10 sequentially passes through a sliver guide roller 8, a sliver guide rod 5, a feeding roller 4 and a drafting roller 3 and then falls into the barrel 1 through a sliver coiler 2, and is characterized in that an electrostatic spinning device is arranged between the sliver guide roller 8 and the sliver guide rod 5, the electrostatic spinning device comprises needle-free electrostatic spinning nozzles 14 and receiving polar plates 6 which are respectively arranged at two sides of the sliver 9, the receiving polar plates are arranged right above the sliver and are 5-20mm away from the sliver, so that the contact between the receiving polar plates and the sliver is avoided, and the normal operation of electrostatic spinning is guaranteed. The receiving polar plate 6 is connected with a grounding wire 7, a zero potential field is provided in electrostatic spinning, the potential difference between a nozzle device of the electrostatic spinning and the hollow cylindrical roller is ensured, and the normal operation of the electrostatic spinning is ensured.
The needle-free electrostatic spinning nozzle 14 adopts a needle-free coaxial electrostatic spinning device disclosed in Chinese patent CN103572388B, and can also adopt a spherical rotary brush type nozzle disclosed in Chinese patent CN 106811811A. The needle-free electrostatic spinning nozzle 14 is connected with the high-voltage generator 12 through a high-voltage resistant lead 11; the liquid storage bottle 20 is sequentially communicated with a liquid supply pump 19, a solution buffer 18, a control valve 17 and a needle-free electrostatic spinning nozzle 14 through a corrosion-resistant insulating liquid conveying pipe 16; the needle-free electrostatic spinning nozzle 14 is fixed on a base 15. The liquid storage bottle 20 is a glass wide-mouth bottle, and a corrosion-resistant insulating plug is arranged at the mouth of the bottle; the corrosion-resistant insulating infusion tube 16 is a polytetrafluoroethylene hose; the solution buffer 18 and the base 15 are made of polytetrafluoroethylene. The control valve 17 is a pulley type flow regulator as shown in fig. 2 (the arrow indicates the flow direction of the spinning solution).
In addition, the width of the receiving polar plate 6 is set according to the number of the strips 9 and the width of the arranged strips, and the length of the receiving polar plate along the moving direction of the strips 9 is generally set to be 20-30 cm, so that the electrostatic spinning device can be fully utilized, and all the strips 9 can receive the submicron fibers. The receiving polar plate 6 is arranged at the right middle position between the guide bar roller and the guide bar, so that the phenomenon that the sub-micron fibers of electrostatic spinning are hung on the guide bar roller and the guide bar is avoided. The voltage regulation range of the high voltage generator 12 is 0-100 kV. The corrosion-resistant insulating infusion tube 16 adopts a polytetrafluoroethylene tube, the diameter of the tube is 2-10mm, and the length of the tube is 500-1200 mm. The solution buffer 18 adopts a mode of single-port liquid inlet and multi-port liquid outlet.
A preparation method of an electrostatic spinning submicron fiber/cotton sliver composite blended yarn comprises the following steps:
step 1: opening a control valve 17 and a liquid supply pump 19 to make the spinning liquid in a liquid storage bottle 20 flow into the needle-free electrostatic spinning nozzle 14 through a corrosion-resistant insulating liquid conveying pipe 16;
step 2: after the spinning solution enters a needle-free electrostatic spinning nozzle 14, a drawing frame is opened, so that slivers 9 fed into a sliver barrel 10 enter a feeding roller 4 through a sliver guiding roller 8 and a sliver guiding rod 5, the slivers 9 are fed into a drafting roller 3 through the feeding roller 4, the slivers 9 passing through the drafting roller 3 enter a sliver coiler 2, and fall into a sliver barrel 1;
and step 3: the positive electrode of a high-voltage generator 12 is connected with a needle-free electrostatic spinning nozzle 14 through a high-voltage resistant lead 11, the high-voltage generator 12 is opened, voltage is slowly increased, a plurality of jet flows 13 are ejected from the needle-free electrostatic spinning nozzle 14, in the process that the jet flows 13 fly to a receiving polar plate 6, solvent is volatilized, high polymer is stretched and solidified to form submicron fibers to be deposited on a strip 9 moving from the lower part of the receiving polar plate (the distance from the needle-free electrostatic spinning nozzle 14 to the receiving polar plate 6 is adjusted, the filament outlet diameter of the needle-free electrostatic spinning nozzle 14 is the width of the strip 9), and the submicron fibers and traditional textile fibers are fully mixed in a drafting zone of a drawing frame and the subsequent two-pass drawing roving and spinning process to obtain the functional composite yarn (as shown in figure 3).
Claims (4)
1. A preparation device of an electrostatic spinning submicron fiber/cotton sliver composite blended yarn comprises a drawing frame, wherein the drawing frame comprises a feeding barrel (10), and slivers (9) in the feeding barrel (10) sequentially pass through a sliver guide roller (8), a sliver guide rod (5), a feeding roller (4) and a drawing roller (3) and then fall into the barrel (1) through a sliver looping device (2), and the preparation device is characterized in that an electrostatic spinning device is arranged between the sliver guide roller (8) and the sliver guide rod (5), and comprises needle-free electrostatic spinning nozzles (14) and receiving polar plates (6) which are respectively positioned on two sides of the slivers (9), wherein the receiving polar plates (6) are connected with a grounding wire (7), and the needle-free electrostatic spinning nozzles (14) are connected with a high-voltage generator (12) through high-voltage-resistant wires (11); the liquid storage bottle (20) is sequentially communicated with a liquid supply pump (19), a solution buffer (18), a control valve (17) and a needle-free electrostatic spinning nozzle (14) through a corrosion-resistant insulating liquid conveying pipe (16); the needle-free electrostatic spinning nozzle (14) is fixed on the base (15); the control valve (17) adopts a pulley type flow regulator; the filament outlet diameter of the needle-free electrostatic spinning nozzle (14) is the width of the sliver (9);
the preparation method of the electrostatic spinning submicron fiber/cotton sliver composite blended yarn comprises the following steps:
step 1): opening a control valve (17) and a liquid supply pump (19) to enable the spinning solution in the liquid storage bottle (20) to flow into a needle-free electrostatic spinning nozzle (14) through a corrosion-resistant insulating liquid conveying pipe (16);
step 2): after the spinning solution enters a needle-free electrostatic spinning nozzle (14), a drawing frame is opened, so that slivers (9) fed into a sliver barrel (10) enter a feeding roller (4) through a sliver guide roller (8) and a sliver guide rod (5), the slivers (9) are fed into a drafting roller (3) by the feeding roller (4), and the slivers (9) passing through the drafting roller (3) enter a sliver coiler (2) and fall into the sliver barrel (1);
step 3): the positive pole of a high-voltage generator (12) is connected with a needle-free electrostatic spinning nozzle (14) through a high-voltage resistant wire (11), the high-voltage generator (12) is opened, voltage is slowly increased, a plurality of jet flows (13) are sprayed out from the needle-free electrostatic spinning nozzle (14), in the process that the jet flows (13) fly to a receiving polar plate (6), a solvent is volatilized, a high polymer is stretched and solidified to form submicron fibers to be deposited on a strip (9) moving from the lower part of the receiving polar plate, and the submicron fibers and the strip (9) are mixed under the action of a drawing roller (3).
2. The apparatus for preparing an electrospun sub-micron fiber/sliver composite blended yarn according to claim 1, wherein the liquid storage bottle (20) is a glass jar, and the mouth of the glass jar is provided with a corrosion-resistant insulating plug; the corrosion-resistant insulating infusion tube (16) is a polytetrafluoroethylene hose; the solution buffer (18) and the base (15) are made of polytetrafluoroethylene.
3. The apparatus for producing an electrospun sub-micron fiber/sliver composite hybrid yarn according to claim 1 wherein the vertical distance between the receiving plate (6) and the sliver (9) is 5-20 mm.
4. The apparatus for preparing an electrospun sub-micron fiber/sliver composite blended yarn according to claim 1, wherein in step 3) the distance from the needle-free electrospinning jet head (14) to the receiving plate (6) is adjusted so that the filament diameter of the needle-free electrospinning jet head (14) is the width of the sliver (9).
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| CN201711439289.7A CN107904732B (en) | 2017-12-26 | 2017-12-26 | Device and method for preparing electrostatic spinning submicron fiber and cotton sliver composite blended yarn |
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| CN201711439289.7A CN107904732B (en) | 2017-12-26 | 2017-12-26 | Device and method for preparing electrostatic spinning submicron fiber and cotton sliver composite blended yarn |
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| CN112553735A (en) * | 2020-11-30 | 2021-03-26 | 闽江学院 | Method for improving moisture absorption performance and fragrance of blended yarn by using electrostatic spinning process |
| CN112553733A (en) * | 2020-11-30 | 2021-03-26 | 闽江学院 | Method for preparing energy-storage temperature-regulating blended multifunctional yarn by utilizing electrostatic spinning process |
| CN114277475A (en) * | 2021-12-01 | 2022-04-05 | 东华大学 | Gray yarn with temperature regulating function and preparation method thereof |
| CN114318604B (en) * | 2021-12-15 | 2022-11-18 | 苏州大学 | Photochromic blended cotton yarn and preparation method and application thereof |
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| US2187306A (en) * | 1937-07-28 | 1940-01-16 | Richard Schreiber Gastell | Artificial thread and method of producing same |
| CN103572448A (en) * | 2013-11-20 | 2014-02-12 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
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