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Method used for preparing high color fastness differential polyester staple fiber via dying of stock solution

A technology of polyester staple fiber and high color fastness, which is applied in the direction of adding pigments and single-component polyester artificial filaments to the spinning solution, which can solve the problems of continuous production of multi-color series and multi-color Pigments are uniformly dispersed, polyester compatibility problems, single species and other problems, to achieve the effects of high production efficiency, increased strength and low cost

Inactive Publication Date: 2018-07-24
江苏垶恒复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing polymerization process coloring method is mainly used for the large-scale continuous production of conventional black silk, and its disadvantages are: the variety is single, and it is impossible to carry out large-scale continuous production of multi-color systems
However, the prior art cannot solve the problem of uniform dispersion of multi-color pigments and compatibility with polyester

Method used

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  • Method used for preparing high color fastness differential polyester staple fiber via dying of stock solution
  • Method used for preparing high color fastness differential polyester staple fiber via dying of stock solution

Examples

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Effect test

Embodiment 1

[0030] A method for preparing high color fastness differential polyester staple fiber by coloring with stock solution, the method may further comprise the steps:

[0031] (1) Preparation of masterbatch: (a) get cetyltrimethylammonium bromide and disperse it in 25% ethanol aqueous solution with a mass fraction of 1%, then add ammonia water therein to adjust the pH value 10, stirred at 25°C for 2 h under the condition of magnetic stirring; (b) Weighed tetraethyl orthosilicate and quinophthalone pigments with a mass ratio of 1:1 and added them to the reaction solution in step (a), the mass The fraction is 1%, reacted for 8h; (c) put the reaction solution of step (b) in a sand mill, then add 1% of the total mass of the solution silane coupling agent KH550 to grind for 3h, and then pass through a microporous membrane After filtering, washing, and drying in a blast drying oven at 85°C, the desired coloring masterbatch with a particle size of 50nm is obtained;

[0032] (2) Add 1% co...

Embodiment 2

[0040](1) Preparation of masterbatch: (a) get cetyltrimethylammonium bromide and disperse it in 30% ethanol aqueous solution with a mass fraction of 2%, then add ammonia water therein to adjust the pH value 11, stirred at 25°C for 1.5 h under the condition of magnetic stirring; (b) Weighed tetraethyl orthosilicate and fused ring ketone pigments with a mass ratio of 1:1 and added them to the reaction solution in step (a), The mass fraction is 2%, and the reaction is 5-8h; (c) the reaction solution of step (b) is placed in a sand mill, and then 3% of the total mass of the solution is added to the silane coupling agent KH550 to grind for 4h, and then through micro After filtering with a pore filter membrane, wash, and dry in an 88°C blast drying oven to obtain the required coloring masterbatch with a particle size of 300nm;

[0041] (2) Add 3% coloring masterbatch and 40% ethylene glycol into the reaction kettle, and stir for 1-2 hours at a temperature of 50-60°C;

[0042] (3) A...

Embodiment 3

[0049] (1) Preparation of color masterbatch: (a) get cetyltrimethylammonium bromide and disperse it in 35% ethanol aqueous solution with a mass fraction of 3%, then add ammonia water to it to adjust the pH value Stir at 25°C for 1 h under the condition of magnetic stirring; (b) Weigh tetraethyl orthosilicate and phthalocyanine pigments with a mass ratio of 1:1 and add them to the reaction solution in step (a), the mass fraction 3%, react for 5h; (c) put the reaction solution in step (b) in a sand mill, add 5% silane coupling agent KH550 of the total mass of the solution to grind for 3h, and then filter through a microporous membrane Finally, wash and dry in a blast drying oven at 90°C to obtain the desired coloring masterbatch with a particle size of 500nm;

[0050] (2) Add 6% coloring masterbatch and 45% ethylene glycol into the reaction kettle, and stir for 1 hour at a temperature of 60°C;

[0051] (3) Add 55% terephthalic acid and 0.5% antimony triacetate to the reaction k...

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Abstract

The invention belongs to the field of synthesis fiber production, and more specifically relates to a polyester fiber production method, and especially a method used for preparing high color fastness differential polyester staple fiber via dying of stock solution. The method comprises following steps: 1, a color master batch is prepared; 2, raw materials are mixed to be uniform and are subjected toesterification; 3, the temperature is increased, and polycondensation is carried out so as to obtain a polyester melt; 4, melt spinning is carried out so as to obtain nascent fiber; 5, the nascent fiber is subjected to drawing, tension heat setting, curling, and relaxation heat setting; and 6, filament bundle cutting and packaging are carried out. The method used for preparing high color fastnessdifferential polyester staple fiber via dying of stock solution possesses following advantages: the heat stability and the compatibility of the prepared color master batch are excellent, the bondingforce of pigment with polyester at high temperature is relatively high, and fiber color fastness is high; the method is high in operationality, technology is reasonable, cost is low, production efficiency is high, the method is friendly to the environment, no pollution is caused, and industrialized large scale production can be realized.

Description

technical field [0001] The invention belongs to the field of synthetic fiber production methods, and in particular relates to a production process of polyester fibers, in particular to a method for preparing differentiated polyester staple fibers with high color fastness by dope dyeing. Background technique [0002] In recent years, with the improvement of people's living standards, people's demand for high-quality colored fabrics has increased year by year. Although after years of development, my country has quickly become the world's largest producer of chemical fiber, but the main focus is on the expansion of conventional polyester production, the phenomenon of regularization and homogeneity is serious, there are serious deficiencies in product development and technological innovation, and product differences rate is much lower than that of developed countries. Therefore, it is of great significance to find a suitable method to continuously produce high-quality colored po...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/04D01F1/10C08G63/183C08G63/78
CPCD01F6/92C08G63/183C08G63/78D01F1/04D01F1/10
Inventor 乔卫星乔智
Owner 江苏垶恒复合材料有限公司
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