Regenerative polyester fibers with color fastness

A technology of recycled polyester and color fastness, applied in the field of recycled polyester fiber, can solve problems such as low color fastness, waste liquid generation, waste, and complicated polyester fiber dyeing process, and achieve the effect of excellent comprehensive performance and good color fastness

Inactive Publication Date: 2016-03-30
CHANGSHU XIANGYING SPECIAL FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dyeing process of polyester fiber is complicated, the color fastness after dyeing is low, and pollutants such as waste liquid and waste are usually produced

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A regenerated polyester fiber with strong color, comprising the following components in parts by weight: 20 parts of esterified product, 5 parts of color masterbatch, 2 parts of brightening agent, and 60 parts of waste polyester material; the esterified product is the reaction of ethanol and carboxylic acid The waste polyester material includes waste polyester bottle flakes, waste polyester cloth corner foam material and polyester waste silk foam material mixed in any proportion.

[0018] The preparation method of above-mentioned regenerated polyester fiber, comprises the steps:

[0019] (1) Ethanol and carboxylic acid are mixed and reacted to obtain an esterified product; the reaction temperature is 220-235°C.

[0020] (2) Mixing and granulating the esterified product prepared in step (1) with the color masterbatch and brightening agent according to the formula to obtain the esterified product masterbatch;

[0021] (3) Mixing and spinning the esterified masterbatch pr...

Embodiment 2

[0023] The difference from Example 1 is that the color-fast regenerated polyester fiber includes the following components in parts by weight: 30 parts of esterified product, 10 parts of color masterbatch, 4 parts of brightening agent, and 80 parts of waste polyester material.

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PUM

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Abstract

The invention discloses regenerative polyester fibers with color fastness. The regenerative polyester fibers are prepared from the following components in parts by weight: 20-30 parts of ester, 5-10 parts of color masterbatch, 2-4 parts of a brightening agent and 60-80 parts of waste polyester materials, wherein the ester is a reactant of ethanol and carboxylic acid. According to the regenerative polyester fibers, the waste polyester product serving as a raw material is adjusted by means of a reasonable formula design and preparation process to prepare the colored polyester fibers. The regenerative polyester fibers have good color fastness performance and excellent comprehensive performance; and furthermore, the regenerative polyester fibers have the advantages of energy conservation and environmental friendliness since dyeing is not required and environmental pollutant is not generated.

Description

technical field [0001] The invention relates to the field of regenerated polyester fibers, in particular to a regenerated polyester fiber with fast color. Background technique [0002] Polyester fibers are hydrophobic fibers made from polyethylene terephthalate. Due to the tight molecular chain structure of polyester and the lack of hydrophilic groups such as carboxyl and sulfonic acid groups, it cannot be dyed with direct dyes, acid dyes, and basic dyes. Most of the existing dyeing methods adopt high temperature and high pressure, hot melt or dyeing with disperse dyes in the presence of carriers. However, the dyeing process of polyester fiber is complicated, the color fastness after dyeing is low, and pollutants such as waste liquid and waste are usually produced. [0003] recycled polyester fiber [0004] Regenerated polyester fiber is similar to polyester fiber and is also a hydrophobic material. If it can be given different colors from the preparation process, it can ...

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): D01F6/92D01F1/10
CPCD01F6/92D01F1/10
Inventor 陶文祥
Owner CHANGSHU XIANGYING SPECIAL FIBER
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