Process for manufacturing regenerative thermal-bonded spunbond nonwoven

A spunbond non-woven fabric and production process technology, applied in non-woven fabrics, textiles and papermaking, filament forming processing and other directions, can solve the problems of unfavorable energy saving, high manufacturing cost, achieve low shrinkage rate, reduce production The effect of enhancing breaking strength

Inactive Publication Date: 2009-07-08
HUIZHOU JIAHE NEW MATERIAL TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Since terephthalic acid needs to be refined and processed from petroleum, and petroleum is a non-renewable precious resource, the us...

Method used

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  • Process for manufacturing regenerative thermal-bonded spunbond nonwoven

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Embodiment Construction

[0022] In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below in conjunction with specific embodiments.

[0023] The non-woven fabric manufacturing process of the present invention utilizes recycled waste PET bottles as raw materials for processing and manufacturing. Therefore, the recycled PET bottles should be processed first. The treatment includes cleaning and sorting, crushing, high-temperature cooking, rinsing, drying and packaging.

[0024] The main purpose of cleaning and sorting is to remove impurities on the surface of the bottles, such as sediment, oil stains, etc., and to remove the labels of the labeled bottles; the sorting is mainly to remove the bottles made of PVC materials, and currently it is still mainly classified manually. In China, the sorting work has been basically completed at the waste recycling station, and more than 90% of the bottles that go to the cleaning plant are gen...

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Abstract

The invention discloses a producing cloth technique by using recycled PET bottle being spunbonded hot rolled which includes steps as follows: (1) processing pre-treament to recycled PET bottle; (2) processing surface pre-crystal, removing dust by using cyclone separator and high temperature drying to the treated PET bottle; (3) feeding the dried PET bottle to a screw extruder for heating melting;(4) adjusting fused mass viscosity and melting point; (5) PET material with melt state passing through a fused mass filter and a spinning metering pump then feeding to a spinning box; (6) spinning; (7) cooling and drafting; (8) forming net hot rolling; (9) rolling cloth. The technique by using recycled waste PET rebirth for producing cloth can save in raw material cost and energy consumption in technique process, reduce productive cost of enterprise greatly, enhance rupture strength of polyester PET rebirth spunbonded hot rolled nonweaven cloth by technique control effectively; and recycle utilization of PET has important meaning for saving rare resource petroleum, and has good social effect.

Description

technical field [0001] The invention discloses a process for making regenerated PET hot-rolled spun-bonded non-woven fabrics, in particular to a process for fabricating recycled waste PET bottles. Background technique [0002] Polyester (PET) is a stable polymer produced by the polymerization of terephthalic acid and ethylene glycol. Its molecular structure is highly symmetrical and has a certain crystal orientation ability, so it has high film-forming properties and good properties. Non-degradable, widely used in packaging, textiles, electronic and electrical casings, etc. Since terephthalic acid needs to be refined and processed from petroleum, and petroleum is a non-renewable precious resource, the use of new PET materials for the above-mentioned finished products has high manufacturing costs and is not conducive to energy conservation. [0003] PET-based polyester materials are non-degradable, which also achieves the advantage of recycling, without the need to reuse ter...

Claims

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Application Information

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IPC IPC(8): D04H3/14D01D1/00D01D1/04D01D1/09D01D1/10C08G63/88C08G63/90D04H3/011D04H3/16
Inventor 陈超
Owner HUIZHOU JIAHE NEW MATERIAL TECH
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