Unlock instant, AI-driven research and patent intelligence for your innovation.

Half dullspon slices of caprone and production method

A semi-extinction, nylon technology, applied in the direction of single-component polyamide rayon, etc., can solve the problems of polyamide chip molecular weight fluctuation, reducing the quality of nylon chips, and difficult to meet the requirements of high-speed filament spinning.

Inactive Publication Date: 2010-12-08
沈有清
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low content of acetic acid, it will lead to the fluctuation of molecular weight in nylon chips, which makes the product quality poor and difficult to meet the spinning requirements of high-speed spinning filaments
And because the matting agent in traditional nylon chips is mixed with titanium dioxide and water, filtered and used directly, the larger particles in it will affect the quality of nylon chips, so the use of this matting agent will also reduce the quality of nylon chips

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
View more

Examples

Experimental program
Comparison scheme
Effect test

no. 2 example

[0026] First select 98 parts of caprolactam, 0.25 parts of matting agent, 0.25 parts of adipic acid and 2.1 parts of initiator, and set aside. The parts of each raw material are parts by weight. Said initiator is deionized water. Said matting agent is titanium dioxide, deionized water, sodium hexametaphosphate and caprolactam in the ratio of titanium dioxide: deionized water: sodium hexametaphosphate: caprolactam = 1:5:0.0002:0.375, and then uniformly mixed, dissolved, It is produced by removing the precipitate after precipitation.

[0027] Then, caprolactam, matting agent, adipic acid and initiator were put into a melting pot with a temperature of 88°C, and while being filled with nitrogen, the mixture was uniformly stirred for 1 hour with a stirrer to prepare a mixed solution.

[0028] After that, the above-mentioned mixed solution was pumped into the polymerization device with a metering pump, and the polymerization reaction was carried out at a temperature of 270° C. for...

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
Login to View More

PUM

No PUM Login to View More

Abstract

This invention discloses a method for producing semi-dull polyamide fiber slices. The raw materials comprise: hexanolactam 95-100 parts, extinction agent 0.2-0.3 part, adipic acid 0.2-0.3 part, and initiator 1.8-2.4 parts. The method comprises: mixing the above raw materials, polymerizing, slicing in water, extracting and drying. The obtained semi-dull polyamide fiber slices have high quality, and can satisfy the requirement for high-speed spinning into long filaments.

Description

technical field [0001] The present invention relates to a spinning raw material. Specifically, it is a nylon 6 semi-dull chip for high-speed spinning of filaments and a production method thereof. Background technique [0002] At present, most of the nylon chips used for high-speed spinning of filaments in the chemical fiber spinning industry are composed of raw materials such as caprolactam, matting agent, acetic acid and initiator. The acetic acid volatilization temperature is relatively low, and it will volatilize at a temperature of 118 °C. The polymerization reaction temperature of nylon chips is about 270°C, and acetic acid is easily volatilized at such a temperature, so that the acetic acid content in the nylon chips is low. Due to the low acetic acid content, the molecular weight in the nylon chips will fluctuate, resulting in poor product quality and difficult to meet the spinning requirements of high-speed spinning filaments. And because the matting agent in the ...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/14C08G69/16D01F6/60
Inventor 沈有清王国新黄伟忠
Owner 沈有清