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Preparation method of anti-flaming recyle polyester staple fiber

A technology of recycled polyester and staple fibers, which is applied in the manufacture of fire-retardant and flame-retardant filaments, and single-component polyester rayon. The complex source of polyester and other problems can achieve the effect of good environment, high production efficiency and good spinnability

Inactive Publication Date: 2013-01-16
DONGHUA UNIV +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

This method solves the problems of complex sources of recycled polyester and high dispersion of intrinsic viscosity, and the problems of direct spinning to produce flame-retardant polyester staple fiber with high melt intrinsic viscosity and large degradation, poor fiber spinnability, and low fiber quality

Method used

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preparation example Construction

[0027] A preparation method of flame-retardant regenerated polyester staple fiber, the raw materials of the preparation method are composed of the following raw materials: 60 kg of phosphorus-based halogen-free flame-retardant masterbatch and polyester raw materials (cloth foam material processed by waste polyester textiles, PET bottle flakes etc.) 940kg.

[0028] 1) Preparation of phosphorus-based halogen-free flame-retardant masterbatch

[0029] Take 10% by weight phosphorus-based halogen-free flame retardant complex and blend with 90% by weight R-pet particles, extrude and pelletize with a screw extruder, and prepare flame-retardant masterbatches for later use. The blending temperature is 180°C, the screw speed is 115rpm; usually the phosphorus content of the flame retardant masterbatch is 70000-100000ppm, the flame retardant polyester staple fiber produced by using this kind of flame retardant masterbatch is not easy to ignite, and it is not When a flame occurs, it will e...

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Abstract

The invention relates to a preparation method of polyester staple fiber, and in particular relates to a preparation method of anti-flaming recyle polyester staple fiber. The method comprises the following steps of: preparing phosphorus series halogen-free anti-flaming master batches; weighing the phosphorus series halogen-free anti-flaming master batches and recyle polyester raw materials according to parts by weight, and respectively drying; transporting the dried recyle polyester raw material to a liquid phase quality and viscosity adjusting reaction kettle by a melt pump after the recyle polyester raw material is melted and filtered; transporting polyester melt after liquid phase tackifying to a second stage filter by the melt pump, mixing with the phosphorus system halogen-free anti-flaming master batch melt in the second stage filter, and enabling the mixed melt to enter a spinning manifold through a static mixer arranged on a transporting pipeline to spin; and carrying out post processing on the obtained as-spun fiber, and cutting off and packing the tows. The preparation method of the permanent and regenerative anti-flaming polyester fiber provided by the invention is high in operability, reasonable in technology, high in production efficiency, and capable of realizing large-scale production.

Description

technical field [0001] The invention relates to a preparation method of polyester staple fiber, in particular to a preparation method of flame-retardant regenerated polyester staple fiber. Background technique [0002] With the improvement of people's living standards, the application fields of textiles are becoming more and more extensive, and the society's requirements for textiles are also getting higher and higher. Fires caused by textiles in daily life, causing serious personal casualties and huge economic losses occur frequently, so improving the flame retardancy of textiles is of great significance to ensure the safety of property and life and reduce the occurrence of fire accidents. At present, the flame retardant fibers available on the market are mainly made of ordinary fibers for surface flame retardant processing, or polyester melt or polyester chips are used to add flame retardants to make fibers. Although the former can be temporarily flame retardant, but after...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/07
Inventor 钱军邢喜全王方河贾同伟杜芳
Owner DONGHUA UNIV
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