A kind of preparation method of multi-different composite nylon 6 fiber

A nylon and fiber technology, which is applied in the field of preparation of polyiso-composite nylon 6 fibers, can solve the problems such as the inability to produce high-end functional nylon products, improve the style and performance, expand the application space and field, and improve the network degree. and the effect of network fastness

Active Publication Date: 2018-05-22
YIWU HUADING NYLON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing nylon fiber production line can only produce conventional nylon fibers, but cannot produce high-end functional nylon products

Method used

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  • A kind of preparation method of multi-different composite nylon 6 fiber
  • A kind of preparation method of multi-different composite nylon 6 fiber
  • A kind of preparation method of multi-different composite nylon 6 fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing polyisotropic composite nylon 6 fibers, including the preparation of FDY and POY.

[0033] The preparation steps of the FDY are as follows:

[0034] 1) Mixing: FDY spinning solution is transported to FDY feeding pipe through the total melt pipe, and the FDY feeding pipe is equipped with FDY modified mixing tank, FDY static mixer, FDY dynamic mixer and FDY metering in sequence Pump, wherein the FDY modified mixing tank is connected with the FDY modified masterbatch storage tank; black masterbatch is housed in the FDY modified masterbatch storage tank. The metering pump controls 6 silk cakes.

[0035] 2) Spinning: the FDY spinning solution is discharged from the FDY metering pump and enters the FDY spinning device for spinning to obtain FDY precursors; the FDY precursors have a circular cross section.

[0036] 3) Stretching: After the FDY raw yarn is heated by the No. 1 drawing hot roller and the No. 2 drawing hot roller in turn, it reaches the No...

Embodiment 2

[0043] A method for preparing polyisotropic composite nylon 6 fibers, including the preparation of FDY and POY.

[0044] The preparation steps of the FDY are as follows:

[0045] 1) Mixing: FDY spinning solution is transported to FDY feeding pipe through the total melt pipe, and the FDY feeding pipe is equipped with FDY modified mixing tank, FDY static mixer, FDY dynamic mixer and FDY metering in sequence pump, wherein the FDY modified mixing tank is connected with the FDY modified master batch storage tank; the antibacterial agent master batch is housed in the FDY modified master batch storage tank. The metering pump controls 4 silk cakes.

[0046] 2) Spinning: the FDY spinning solution is discharged from the FDY metering pump and enters the FDY spinning device for spinning to obtain FDY precursors; the FDY precursors have a cross-shaped cross-section.

[0047] 3) Stretching: After the FDY raw yarn is heated by the No. 1 drawing hot roller and the No. 2 drawing hot roller i...

Embodiment 3

[0054] A method for preparing polyisotropic composite nylon 6 fibers, including the preparation of FDY and POY.

[0055] The preparation steps of the FDY are as follows:

[0056] 1) Mixing: FDY spinning solution is transported to FDY feeding pipe through the total melt pipe, and the FDY feeding pipe is equipped with FDY modified mixing tank, FDY static mixer, FDY dynamic mixer and FDY metering in sequence pump, wherein the FDY modified mixing tank is connected with the FDY modified master batch storage tank; the negative ion modified master batch is housed in the FDY modified master batch storage tank. The metering pump controls 6 silk cakes.

[0057] 2) Spinning: the FDY spinning solution is discharged from the FDY metering pump and enters the FDY spinning device for spinning to obtain FDY precursors; the FDY precursors have a hollow cross section.

[0058] 3) Stretching: After the FDY raw yarn is heated by the No. 1 drawing hot roller and the No. 2 drawing hot roller in tu...

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Abstract

The invention relates to the field of spinning, and discloses a preparation method of multi-irregular composite nylon 6 fiber. The method comprises preparation of fully drawn yarn (FDY) and preparation of polyester pre-oriented yarn (POY). The preparation of the FDY comprises the following steps: (1) mixing; (2) spinning; (3) drawing. The preparation of the POY comprises the following steps: (1) mixing; (2) spinning; (3) guiding yarn. The multi-irregular composite nylon 6 fiber is prepared by merging the prepared FDY and the prepared POY on a guide roller No. 3, then compounding the mixed fiber on a subpackage type interlacer, and finally winding by using a winding device. By reforming and optimizing the existing production line for the nylon 6 fiber, the comprehensive compound modification such as multiple components, multiple functions, various colors and multiple irregular cross sections for the nylon fiber can be realized while not influencing the spinnability of fiber production, the types and styles of fiber and fabric can be greatly enriched, the application space and field of the fiber are expanded, and the application field of the product is improved. The preparation method is high in efficiency, low in cost and good in stability.

Description

technical field [0001] The invention relates to the field of spinning, in particular to a method for preparing polyisotropic composite nylon 6 fibers. Background technique [0002] Due to the large-scale expansion of production in the early stage, nylon fiber has entered into overcapacity, the competition in the industry is fierce, the profit of conventional products has dropped sharply, and it is in a state of serious losses, while the supply of functional and differentiated products is in short supply, and the degree of dependence on imports is high, especially for high-end functions. Sexual and differentiated products are in short supply, and due to environmental protection pressure and national industrial policies, it has become an important trend for the development of the industry to develop dyed yarn production and reduce the impact of printing and dyeing on the environment. [0003] The current nylon fiber production line such as figure 1 As shown, its production li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G3/02D01D1/09D01D5/08D01D5/16D01D5/253D01D10/04D01F1/10D01F6/90
CPCD01D1/09D01D5/08D01D5/16D01D5/253D01D10/0436D01F1/103D01F1/106D01F6/90D02G3/02
Inventor 张守运左传胜
Owner YIWU HUADING NYLON
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