Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing fibers by adding reclaimed materials of waste nonwoven fabric

A technology of non-woven fabrics and recycled materials, which is applied in fiber processing, textiles and papermaking, and complete sets of equipment for the production of artificial threads. Polymer molecular weight distribution and other issues, to achieve energy-saving and environmentally friendly production technology, reduce human and material resource consumption, and achieve good economic benefits

Active Publication Date: 2018-07-06
泉州市易斯特永隆新材料科技有限公司
View PDF11 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the aforementioned prior art, waste polyester or waste polypropylene is used for cleaning, recrystallization and regeneration, or a homogenization kettle is used to adjust the viscosity of waste polyester to form recycled materials, and to prepare polyester fiber or polypropylene fiber, but waste polyester or waste Polypropylene contains or adheres to a large number of pollutants that are difficult to clean and remove, such as stains and even impurities. On the one hand, these pollutants affect the molecular weight and distribution of the polymer, thereby affecting the viscosity and stability of the melt. , will cause the elongation at break, breaking strength, etc. of the fiber product after spinning, but the existing technology cannot solve the problem of effective filtration of impurities or pollutants in waste polyester and waste polypropylene materials, let alone how to filter them in new Technical problems of adding waste polyester or waste polypropylene regenerated materials into materials

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
  • Method for preparing fibers by adding reclaimed materials of waste nonwoven fabric
  • Method for preparing fibers by adding reclaimed materials of waste nonwoven fabric
  • Method for preparing fibers by adding reclaimed materials of waste nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] In this embodiment, recycled waste PP / PE nonwoven fabrics or scraps generated during the production process of PP / PE nonwoven fabrics are used as raw materials, and the recycled melt of waste materials is obtained through the steps of regeneration treatment.

[0072] as attached Figure 1 to Figure 4 , Figure 6 and Figure 7 As shown, the waste non-woven fabric is regenerated to obtain a waste regenerated melt, including the following steps:

[0073] 1) Crushing step: In this step, the waste nonwoven fabric crushing system 21 is a crusher, and the waste nonwoven fabric is broken into sheet-like fabrics with a size not larger than 30mm×30mm by using the crusher.

[0074] 2) The step of pretreatment: adopt the hot cyclone separator 22 to separate the dust, sundries and fine powder in the sheet cloth in step (1), then enter the cleaning process 23 of the sheet cloth, in the cleaning process 23 Washing with hot water at 60-80° C. to wash and remove impurities in the she...

Embodiment 2

[0084] Such as Figure 8 As shown, in this example, component A and component B are used as raw materials, and the regenerated waste nonwoven fabric obtained in Example 1 is added for spinning to obtain a bicomponent fiber, and then a bicomponent nonwoven fabric is obtained.

[0085] In this embodiment, a two-component spinning device is used for spinning, which consists of a first component device (ie component A) and a second component device (ie component B). in:

[0086] The first component device includes: drier 1119 (the first drier), feeding device 112, metering pump 113 (the first main metering system), screw extruder 115 (the first main screw melt extrusion system) . Filter 116 (first main filter system).

[0087] Likewise, the second component device includes: drier 121 ((second drier)), feeding device 122, metering pump 123 (second main metering system), screw extruder 125 (second main screw melt extrusion system), filter 126 (the second main filter system), the ...

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

PropertyMeasurementUnit
Apertureaaaaaaaaaa
Apertureaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing fibers by adding reclaimed materials of a waste non-woven fabric. The method comprises the steps that the waste non-woven fabric is subjected to regeneration treatment, wherein the waste non-woven fabric is crushed and pre-treated to form a sheet-like cloth pre-treatment material, the sheet-like cloth pre-treatment material is transported to a feeding hopper of a waste feeding system through a material sucking machine and metered and pressurized by a metering pump and then enters a small screw extruder for heating and melting treatment to obtaina waste melt, and a vacuuming device conducts vacuuming to suck out oil, water vapor and other volatile substances generated in the heating and melting process of the sheet-like cloth pre-treatment material; then, the waste melt is sent to a waste filtration system to obtain a waste reclaimed melt; the waste reclaimed melt enters an inner bin of a feeding bin, a driving motor drives a material conveying screw rod to rotate, under the action of an extrusion and shearing force of the material conveying screw rod, the waste reclaimed melt is conveyed to a discharge port and enters a screw extruding machine of a spinning device to be mixed and homogenized with main materials, and the fibers are made through a spinning pack.

Description

technical field [0001] The invention relates to the technical field of chemical fiber preparation, in particular to a method for preparing fiber by adding recycled materials of waste non-woven fabrics. Background technique [0002] As we all know, my country is a big country in the textile industry, and it is also a big country in textile consumption. Every year, my country's waste textiles are as high as tens of millions of tons. Among them, polyester, also known as polyester fiber (polyester, PET for short), polyester (PET) is a stable polymer produced by polymerization of terephthalic acid and ethylene glycol, its molecular structure is highly symmetrical, and it has a certain crystallographic orientation. Therefore, polyester fabrics occupy a considerable proportion in waste textiles, but The existing polyester waste materials are almost all buried and incinerated as garbage, causing damage to the environment, and the reuse rate is extremely low. Among them, PP plastic...

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
IPC IPC(8): D01D13/00D01D1/10
CPCD01D1/106D01D13/00
Inventor 曾飞虎张青海
Owner 泉州市易斯特永隆新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com