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Interface coating modification device and method for functional yarn

A yarn and coating technology, which is applied in the field of functional fiber preparation, can solve the problems of limiting the use range of polyelectrolytes, the concentration is not easy to be too high, and the fabric has poor air permeability.

Active Publication Date: 2021-07-06
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fabric prepared by this method has poor air permeability
Moreover, the polyelectrolyte must be an aqueous solution system, and the concentration is not easy to be too high, which greatly limits the scope of use of the polyelectrolyte

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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  • Interface coating modification device and method for functional yarn
  • Interface coating modification device and method for functional yarn
  • Interface coating modification device and method for functional yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A method for coating and modifying functional yarns is produced and prepared by using an interface coating and modifying device for functional yarns. see figure 1 As shown, the device includes a yarn feeding module 10 , a yarn rotating module 30 , a modifying fluid coating module 20 , a drying module 40 and a winding module 50 . The feeding module 10 is realized by a feeding roller, and the yarn rotating module 30 can be realized by a twisting device. The modified liquid coating module 20 includes two symmetrically arranged carrying containers 22, 23 (the height difference of the two carrying containers is 20mm) for holding the cationic polyelectrolyte solution and the anionic polyelectrolyte solution respectively, and The anionic polyelectrolyte extruding device 21-1 and the cationic polyelectrolyte extruding device 21-2 respectively matched with the carrying containers 22, 23 are used for continuously supplying the cationic polyelectrolyte solution and the anionic po...

Embodiment 2

[0061] A method for coating and modifying functional yarns. Compared with Example 1, the difference is that in step S1, the concentration of polyethyleneimine solution is 2 mg / mL, and the concentration of polyacrylic acid solution is 2 mg / mL In step S2, the modified liquid coating module 20 includes two electrostatic spraying devices, which are used to spray polyethyleneimine solution and polystyrene sulfonic acid solution from the polyester yarn respectively during the rotation and movement of the polyester yarn. Both sides of the polyester yarn are sprayed onto the surface, so that the polyethyleneimine solution and the polystyrene sulfonic acid solution are evenly adhered to the surface of the polyester yarn to form a water-insoluble polyelectrolyte composite film. Others are substantially the same as in Embodiment 1, and will not be repeated here.

[0062] The functional polyester yarn prepared in this example has a dyeing rate of methylene blue of 27% and a moisture absor...

Embodiment 3

[0064] A method for coating and modifying functional yarns. Compared with Example 1, the difference is that in step S1, silver ions are added to polyethyleneimine solution and polyacrylic acid solution. Others are substantially the same as in Embodiment 1, and will not be repeated here.

[0065] The functional polyester yarn prepared in this example can inhibit the growth of Staphylococcus aureus, and the bacteriostatic rate can reach 85.7% in 24 hours.

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Abstract

The invention provides an interface coating modification device and method for functional yarn. The coating modification device comprises a yarn feeding module, a yarn rotating module, a modification liquid coating module, a drying module and a winding module. Fibers or the yarn are sequentially fed into the modification liquid coating module, the yarn rotating module and the drying module, so that the fibers or the yarn are in rotating contact with a cationic polyelectrolyte solution and an anionic polyelectrolyte solution in the modification liquid coating module, and then the cationic polyelectrolyte solution and the anionic polyelectrolyte solution are further uniformly adhered to the surfaces of the fibers or the yarn to form a non-water-soluble polyelectrolyte composite membrane; then feeding the membrane to the drying module for drying; and finally, carrying out winding and collecting by the winding module. According to the device and method, the application range of polyelectrolyte is expanded, the problem of flocculation or precipitation caused by contact of the polyelectrolyte due to attraction of positive and negative charges is avoided, and rapid and large-scale production of the high-performance yarn can be realized.

Description

technical field [0001] The invention relates to the technical field of functional fiber preparation, in particular to an interface coating modification device and coating modification method for functional yarns. Background technique [0002] In addition to a large number of applications of various functional fibers in the textile field, functional fibers or yarns have been widely used in other fields such as biology, medical treatment, environment, flexible electronics, energy, etc. Aiming at different application objects and fields, various technologies for preparing functional fibers have been successively developed. To sum up, the methods used to prepare functional fibers can be divided into two categories: one is the surface modification of fibers. Functional yarns are formed mainly by chemically grafting functional polymers onto the surface of fibers, or loading functional inorganic nanoparticles onto the surface of fibers. The other is to blend functional materials ...

Claims

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B3/04D06B15/00D06B23/02D02G3/44
CPCD06B3/04D06B15/00D06B23/02D02G3/441D02G3/449D10B2401/16D10B2401/13Y02P70/62
Inventor 肖仕丽杨玉慧曹仁广张如全徐卫林
Owner WUHAN TEXTILE UNIV
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