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Method for preparing functional ultraviolet-resistant polyester staple fiber from waste renewable polyester bottle chips

A polyester staple fiber, anti-ultraviolet technology, applied in fiber processing, stretch spinning, filament forming processing, etc., to achieve good economic and social benefits, solve environmental protection problems, and low prices.

Inactive Publication Date: 2012-06-20
东莞市粤盛纤维制品有限公司
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  • Abstract
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Problems solved by technology

[0005] In order to solve the above problems, the purpose of this invention is to provide a method for preparing functional anti-ultraviolet polyester staple fibers from waste recycled polyester bottle flakes, which solves the problem of recycling Waste recycled polyester bottle flakes are difficult to produce high-end chemical fiber products due to many impurities, and the fiber has excellent radiation protection effect

Method used

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  • Method for preparing functional ultraviolet-resistant polyester staple fiber from waste renewable polyester bottle chips
  • Method for preparing functional ultraviolet-resistant polyester staple fiber from waste renewable polyester bottle chips

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Embodiment Construction

[0022] A method for preparing functional anti-ultraviolet polyester staple fibers from waste recycled polyester bottle flakes according to the present invention, see figure 1 , Firstly, pretreatment and drying are carried out on the recycled waste recycled polyester bottle flakes. Pretreatment includes a series of raw material preparations such as sorting, crushing, and cleaning waste recycled PET bottle flakes, and then put the cleaned bottle flakes into the drum vacuum dryer. After the materials are put in, the drum clamps Pass 3-5kg of steam or heat-conducting oil through the sleeve, and rotate the drum at a low speed at the same time, keep the temperature at 130-160°C, and start the vacuum pump to evacuate at the same time, the vacuum degree is kept at 0.06-0.10Mpa, and the drying time is 8-12 hours. The moisture content of the bottle flakes is controlled below 100PPm.

[0023] At the same time, the anti-ultraviolet polyester masterbatch is dried. The anti-ultraviolet po...

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Abstract

The invention discloses a method for preparing functional ultraviolet-resistant polyester staple fiber from waste renewable polyester bottle chips. The method comprises the following steps of: pre-treating and drying recovered waste renewable polyester bottle chips; drying ultraviolet-resistant polyester master batch; conveying the dried polyester bottle chips and ultraviolet-resistant polyester master batch into a special metering feeder to quantitatively feed and mix the polyester bottle chips and the ultraviolet-resistant polyester master batch to obtain a mixture; performing screw fusion extrusion on the mixed mixture with a certain concentration to obtain melt; filtering the melt, metering and spinning, cooling through circular blowing, winding and oiling, drawing and feeding, and holding filaments and falling into a barrel; bundling the filaments in the barrel; and performing oil water bath drawing and steam drawing, tense thermal forming, oiling, filament lamination, curling, loose thermal forming, cutting and packing to obtain an ultraviolet-resistant polyester staple fiber product. The method has the advantages of rational preparation process and high operability; and the product has lower cost than a new material and has good economic benefit and social benefit.

Description

technical field [0001] The invention belongs to the field of resource regeneration and utilization and the field of chemical fiber technology manufacturing, in particular to a method for preparing functional anti-ultraviolet polyester staple fiber from discarded recycled polyester bottle flakes. Background technique [0002] The rapid development of the world's economy today has also brought about serious problems such as environmental pollution, especially the increasingly serious damage to the ozone layer. The intensity of ultraviolet rays reaching the ground has increased significantly, and the damage of ultraviolet rays to the human body has also increased. Long-term exposure to ultraviolet rays will cause Reduce the lifespan of organic molecules and reduce the immune function of the human body, which not only damages the skin and causes dermatitis, freckles, erythema and other diseases, but also promotes eye diseases, cataracts, and even skin cancer and other disease...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14C08J11/06D01D1/00D01D1/04D01D1/10D01D5/092D01D5/14D01D10/02
CPCY02W30/62
Inventor 查安霞
Owner 东莞市粤盛纤维制品有限公司
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