Supercharge Your Innovation With Domain-Expert AI Agents!

Process for producing polyester spunbonded pre-oriented yarn from waste polyester bottle chips

A pre-oriented yarn and production process technology, applied in the field of polyester filament manufacturing, can solve the problems of large waste of oil resources and high spinning costs, and achieve the effects of eliminating bridging, saving materials, and improving quality

Inactive Publication Date: 2011-08-10
绍兴柯桥南红纱业有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials used in these two kinds of spinning are intermediate products of petroleum resources, which cause a large waste of petroleum resources and high spinning costs.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for producing polyester spunbonded pre-oriented yarn from waste polyester bottle chips
  • Process for producing polyester spunbonded pre-oriented yarn from waste polyester bottle chips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The production process of polyester pre-oriented yarn spun from waste polyester bottle flakes, combined with figure 1 shown. Using waste PET bottles as raw materials, PET bottle flakes are obtained by sorting, crushing and cleaning, and the bottle flakes are crystallized and dried. The crystallization temperature is 165°C, and the fan frequency is 40-50Hz. In the drying step, the drying temperature is controlled at 150°C, and the drying air pressure is 1.5Kg / Cm 2 , the drying time is 300min, the moisture content of the bottle can be ≤30ppm. Due to the characteristics of low melting point and high viscosity of waste bottle chips, continuous crystallization and drying under high temperature conditions are prone to the phenomenon of bottle chips accumulation, sticking, and uneven feeding speed, resulting in the inability of continuous crystallization and drying of bottle chips. In view of these unfavorable characteristics of waste bottle flakes, by increasing the area of...

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

The invention relates to a process for producing polyester spunbonded pre-oriented yarn from waste polyester bottle chips, belongs to the polyester filament manufacturing technology field. The invention adopts waste PET bottle as material, comprises the following steps: crystallizing the processed bottle chips, drying to the water content no more than 30ppm; mounting miniature shock pneumatic hammer on the pipeline outer wall to realize slight shock form for conveying the dried bottle chips to a screw extruder; controlling the temperatures of the areas of the screw extruder at 288-308 degreescentigrade; removing the impurities in he melt by a double stage filter and a booster pump; metering and distributing the melt by a metering pump, extruding to spinning jet board assembly; cooling, stretching, oiling, winding into cylinder and cartonning. The invention reduces resource waste and environmental pollution, achieves characteristics of continuous production and high production efficiency; can obtain product with high strength, uniform color, stable quality and low cost; improve the class of the waste polyester bottle chips produced textile product; and improves market competition ability of the product.

Description

technical field [0001] The invention relates to a production process for spinning polyester pre-oriented yarn from waste polyester bottle flakes, and belongs to the technical field of polyester filament manufacturing. Background technique [0002] As an important fiber raw material, chemical fiber has accounted for more than 60% of the total fiber processing in my country, and it occupies and will continue to occupy an important position in human life. As we all know, most of the chemical fiber raw materials come from petroleum and petroleum derivatives, and petroleum is a non-renewable resource. As a country whose per capita resources are far lower than the world average, China is entering a country with rapid industrialization. Faced with the increasingly scarce high-priced oil resources, how to reduce the dependence on oil resources has become a very prominent practical problem. At the same time, the polyester industry has always been the focus of the development of my c...

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): D01D5/08D01D1/09D01D1/10D01D1/00D01D1/04
Inventor 李友祥
Owner 绍兴柯桥南红纱业有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com