Recycled color yarn produced from waste polyester fabric and manufacturing method of recycled color yarn

A textile and polyester technology, which is applied in the field of recycled polyester colored yarn and textiles, can solve the problems that the technology of recycled polyester colored yarn has not been reported, and achieve the effects of high added value, good color and luster firmness, and excellent comprehensive performance

Inactive Publication Date: 2019-09-24
FUQING BRANCH OF FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there have been reports on the preparation of regenerated fiber colored yarn based on domestically recycled PET bottle flakes, but the technology of preparing recycled polyester colored yarn based on the solid waste of characteristic light industry industries has not been reported and there is no such technology abroad

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

[0029] A regenerated colored yarn produced from waste polyester textiles is composed of 80 parts of recycled polyester textiles, 8 parts of esterified products, 5 parts of color masterbatch, 5 parts of brightening agent and 2 parts of chain extender.

[0030] The preparation method is carried out according to the following steps:

[0031] (1) Sorting, crushing, washing, and vacuum drying the collected waste polyester textiles (the main component is polyester, which is a conventional product) to form a foam material; the foam material is put into a melting furnace for smelting into a molten state, and the melt is filtered In addition to inorganic impurities, the bubbles and oligomers in the melt are extracted with negative pressure to obtain granulated semi-finished raw materials, which are put into the reactor for depolymerization-chain extension-transesterification and repolymerization to obtain granulation raw materials; depolymerization-chain extension -Re-polycondensation ...

Embodiment 2

[0036] A regenerated colored yarn produced from waste polyester textiles is composed of: 85 parts of recycled polyester textiles, 3 parts of esterified products, 5 parts of color masterbatch, 5 parts of brightening agent and 2 parts of chain extender.

[0037] The preparation method is carried out according to the following steps:

[0038] (1) Sorting, crushing, washing, and vacuum-drying the collected waste polyester textiles (the main component is polyester, which is a conventional product) to form a foam material; the foam material is put into a melting furnace for smelting into a molten state, and the melt is filtered In addition to inorganic impurities, the bubbles and oligomers in the melt are extracted with negative pressure to obtain granulated semi-finished raw materials, which are put into the reactor for depolymerization-chain extension-transesterification and repolymerization to obtain granulation raw materials; depolymerization-chain extension -The heavy polyconde...

Embodiment 3

[0043] A regenerated colored yarn produced from waste polyester textiles consists of: 90 parts of recycled polyester textiles, 2 parts of esterified products, 5 parts of color masterbatch, 2 parts of brightening agent, and 1 part of chain extender.

[0044] The preparation method is carried out according to the following steps:

[0045] (1) Sorting, crushing, washing, and vacuum drying the collected waste polyester textiles (the main component is polyester, which is a conventional product) to form a foam material; the foam material is put into a melting furnace for smelting into a molten state, and the melt is filtered In addition to inorganic impurities, the bubbles and oligomers in the melt are extracted with negative pressure to obtain granulated semi-finished raw materials, which are put into the reactor for depolymerization-chain extension-transesterification and repolymerization to obtain granulation raw materials; depolymerization-chain extension -The heavy polycondensa...

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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PUM

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Abstract

The invention discloses a recycled color yarn produced from waste polyester fabric and a manufacturing method of the recycled color yarn. The recycled color yarn comprises the waste polyester fabric, esterified products, color masterbatches, brightening agents and chain extenders. The manufacturing method includes (1) pretreating the waste polyester fabric to form a foam material; after the foam material is put into a melting furnace to be smelted into a molten state, filtering the melt to remove non-melted impurities, extracting bubbles and oligomers in the melt through negative pressure to obtain a granulated semi-finished product, and subjecting the granulated semi-finished product to depolymerization, chain extension and ester exchange re-polymerization in a reaction kettle to obtain a granulated raw material; (2) subjecting the esterified products, the color masterbatches and the brightening agents to melt blending for extrusion granulation to obtain an esterified masterbatch; (3) adding the products of the step (1) and the step (2) into a reaction-type vented screw extruder for extrusion granulation to obtain a raw material of the recycled color yarn; (4) subjecting the product of the step (3) to melt spinning. The recycled color yarn and the manufacturing method thereof have the advantages that the waste polyester fabric is recycled, the printing and dyeing process of the recycled color yarn is simplified, environmental pollutants such as printing and dyeing wastewater are avoided, and the recycled color yarn is energy saving and environment friendly.

Description

technical field [0001] The invention relates to the technical field of recycled polyester colored yarn and textile technology, in particular to high-quality recycling of waste polyester textiles to produce recycled polyester colored yarn. Background technique [0002] With the growth of economic level and population, the demand of modern humans for textiles is increasing, and polyester is used in processing [0003] The synthetic fiber variety with the highest output in textiles has greatly solved the needs of modern humans for various bright and bright textiles. At the same time, modern humans are also facing the problem of excessive utilization of non-renewable resources, fewer and fewer resources, and environmental pollution in the process of textile production and processing. Therefore, it is imminent to make rational use of all very valuable non-renewable materials. People need to make rational use of recycled waste textiles to regenerate textile colored yarns and cont...

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): D01F6/92D01F1/10D01F1/04C08G63/183
CPCC08G63/183D01F1/04D01F1/10D01F6/92Y02P20/10
Inventor 陈庆华成惠斌钱庆荣黄宝铨肖荔人罗永晋曾令兴庄凌峰
Owner FUQING BRANCH OF FUJIAN NORMAL UNIV
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