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Method for preparing nano-fiber blending composite yarn

A technology of nanofibers and yarns, which is applied in the field of preparation of blended composite yarns, can solve the problems of unusable, low output and high requirements of electrospinning technology, and achieve simple preparation methods, good early market and economic benefits, and increase additional value effect

Active Publication Date: 2014-02-12
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The output of traditional electrospinning technology is low, which cannot meet the requirements of industrial production and application. Using "TAYLOR cone multi-nozzle electrospinning machine" (application number 200710172744.1, publication date 2008.07.02, publication number 101210352) can solve the output of traditional spinning technology Low problem to achieve large-scale production of electrospun nanofibers
In addition, due to the particularity of the preparation method, the usual electrospun nanofibers mostly exist in the form of random non-woven fabrics, which cannot be directly utilized by traditional textile process equipment.
At present, some scholars have studied the use of electrospinning equipment to prepare nano-yarns, but the strength of nano-yarns prepared simply by using electrospinning equipment is generally low, which cannot meet its application in some specific fields, especially textiles and clothing.
Moreover, electrospun nano-yarns have high requirements for polymer solutions and are not suitable for various polymers.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for preparing nano-fiber blending composite yarn
  • Method for preparing nano-fiber blending composite yarn
  • Method for preparing nano-fiber blending composite yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Common cotton staple fiber is used, and polyacrylonitrile is used as the polymer.

[0035] (1) Dissolve polyacrylonitrile (molecular weight 75,000) in dimethylacetamide (DMAc) to prepare a uniform electrospinning solution;

[0036] (2) Carrying out ordinary staple fiber in the traditional spinning process, the traditional spinning process includes the carding process; for example figure 1 As shown, move the electrospinning solution obtained in step (1) to the liquid supply device 8 of the TAYLOR cone multi-nozzle electrospinning machine for electrospinning, and use the 6-direction carding link of the TAYLOR cone multi-nozzle electrospinning machine Spin polyacrylonitrile nanofibers 5 on the cotton web 4 that has not yet been slivered to obtain a cotton web containing nanofibers;

[0037] (3) The above-mentioned cotton web containing nanofibers is slivered and directly enters the subsequent yarn forming process, and finally a continuous blended composite yarn containing...

Embodiment 2

[0040] Adopt the method identical with embodiment 1, wherein staple fiber adopts viscose staple fiber, polymer adopts polyurethane.

[0041] (1) Dissolve polyurethane in dimethylformamide (DMF) to prepare a uniform electrospinning solution;

[0042] (2) Put ordinary viscose staple fiber into the traditional spinning process, and the traditional spinning process includes the carding process; figure 1 As shown, move the electrospinning solution obtained in step (1) to the liquid supply device 8 of the TAYLOR cone multi-nozzle electrospinning machine for electrospinning, and use the 6-direction carding link of the TAYLOR cone multi-nozzle electrospinning machine Polyurethane nanofibers 5 are spun into the viscose staple fiber web 4 that has not yet been slivered to obtain a viscose staple fiber web containing nanofibers;

[0043] (3) The above-mentioned viscose staple fiber web containing nanofibers is slivered and directly enters the subsequent yarn forming process, and finally...

Embodiment 3

[0045] Adopt the method identical with embodiment 1, wherein short fiber adopts polyester short fiber, polymer adopts polyacrylonitrile.

[0046] (1) Dissolve polyacrylonitrile in dimethylacetamide (DMAc) to prepare a uniform electrospinning solution;

[0047] (2) Put ordinary polyester staple fiber into the traditional spinning process, and the traditional spinning process includes the carding process; figure 1 As shown, move the electrospinning solution obtained in step (1) to the liquid supply device 8 of the TAYLOR cone multi-nozzle electrospinning machine for electrospinning, and use the 6-direction carding link of the TAYLOR cone multi-nozzle electrospinning machine Polyacrylonitrile nanofibers 5 are spun into polyester staple fiber webs 4 that have not yet been slivered to obtain polyester staple fiber webs containing nanofibers;

[0048] (3) The above-mentioned polyester staple fiber web containing nanofibers is slivered and directly enters the subsequent yarn forming...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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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 [0001] The invention belongs to the field of preparation of blended composite yarns, in particular to a preparation method of nanofiber blended composite yarns. Background technique [0002] In recent years, with the improvement of people's living standards, while paying attention to the comfort of textiles, the functional requirements of textile clothing are also getting higher and higher, and nano-concept yarns have been continuously proposed and paid attention to. Most of the so-called nano-functional textiles on the market are obtained by finishing fabrics with nano-functional materials. According to our search, there is currently no yarn containing nanofibers on the market. [0003] Electrospinning technology is currently the only method that can directly, continuously and efficiently prepare polymer nanofibers. It has become a hot spot in nanofiber research due to its excellent characteristics such as simple equipment, easy operation, wide range of mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02G3/04
Inventor 覃小红蒋国军
Owner DONGHUA UNIV
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