Method for preparing colorized fire-retardant delustering hollow polyester filament

A polyester filament and hollow technology, which is applied in the field of preparation of colored flame-retardant and matte hollow polyester filaments, can solve the problems of equipment friction affecting melt viscosity and inability to prepare polyester fibers, etc., and achieve the effect of poor drying effect

Active Publication Date: 2009-12-09
ZHEJIANG HUAXIN ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a preparation method of colored flame-retardant and matte hollow polyester filaments, which mainly solves the existing problem in the prior art that adding color masterbatches and matti...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: the preparation method of the colored flame-retardant extinction hollow polyester filament of this example, its steps are:

[0037] a. Add a copolymerized flame retardant during the preparation of polyester chips. The polyester chip is composed of polyethylene terephthalate, which is polymerized from purified terephthalic acid and ethylene glycol. The copolymerized flame retardant It is 2-carboxyethylphenylphosphinic acid, which accounts for 4.0% of the total mass, thereby forming flame-retardant chips;

[0038] b. Pass flame retardant slices, color masterbatches, and matting masterbatches into the pre-crystallization chamber for pre-crystallization respectively. The color masterbatch accounts for 1% of the total mass after mixing, and the matting masterbatch accounts for 4% of the total mass after mixing. The pre-crystallization temperature of the burning chip is 160°C, and the time is 30min; the pre-crystallization temperature of the color masterbatch an...

Embodiment 2

[0042] Embodiment 2: the preparation method of the colored flame-retardant extinction hollow polyester filament of this example, its steps are:

[0043] a. Add a copolymerized flame retardant during the preparation of polyester chips. The polyester chip is composed of polyethylene terephthalate, which is polymerized from purified terephthalic acid and ethylene glycol. The copolymerized flame retardant It is 2-carboxyethylphenylphosphinic acid, which accounts for 4.5% of the total mass, thereby forming flame-retardant chips;

[0044] b. Pass flame retardant slices, color masterbatches, and matt masterbatches into the pre-crystallization chamber for pre-crystallization respectively. The color masterbatches account for 2% of the total mass after mixing, and the matting masterbatches account for 5% of the total mass after mixing. The pre-crystallization temperature of the burnt chip is 155°C, and the time is 28min; the pre-crystallization temperature of the color masterbatch and m...

Embodiment 3

[0048] Embodiment 3: the preparation method of the colored flame-retardant extinction hollow polyester filament of this example, its steps are:

[0049] a. Add a copolymerized flame retardant during the preparation of polyester chips. The polyester chip is composed of polyethylene terephthalate, which is polymerized from purified terephthalic acid and ethylene glycol. The copolymerized flame retardant It is 2-carboxyethylphenylphosphinic acid, which accounts for 5% of the total mass, thereby forming flame-retardant chips;

[0050] b. Pass flame retardant slices, color masterbatches, and matting masterbatches into the pre-crystallization chamber for pre-crystallization respectively. The color masterbatches account for 2.5% of the total mass after mixing, and the matting masterbatches account for 5.5% of the total mass after mixing. The pre-crystallization temperature of the burning chip is 150°C, and the time is 25min; the pre-crystallization temperature of the color masterbatc...

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Abstract

The invention relates to a method for preparing a polyester filament, in particular to a method for preparing a colorized fire-retardant delustering hollow polyester filament. The method mainly solves the technical problem of the prior art that color master batches and a delustering agent added into a fire-retardant slice can influence the viscosity of a fused mass during the spinning and the friction to a device in the processing process so that colorized, fire-retardant and delustering finished polyester fiber and the like cannot be prepared. The preparation method comprises the following steps: adding a copolymerization fire retardant in the process of preparing a polyester slice to form the fire-retardant slice; performing pre-crystallization on and drying the fire-retardant slice, the color master batches and delustering master batches, and evaporating the water content; mixing the fire-retardant slice with the color master batches and the delustering master batches, passing the mixture into a double screw extruder to perform heating melting, performing filter mixing and measuring allocation on the fused mass, and spinning the fused mass into tows; and performing cooling molding on the tows through lateral blow, and obtaining a finished product after oil tanker oiling, drafting, networking and winding.

Description

technical field [0001] The invention relates to a preparation method of polyester filaments, in particular to a preparation method of colored flame-retardant extinction hollow polyester filaments. Background technique [0002] In recent years, my country's polyester industry has developed rapidly. The output of polyester fiber has grown from 5.165 million tons at the beginning of 2000 to 12.4 million tons at the end of 2005, with an average annual growth rate of more than 20%. The output has doubled compared with five years ago. many. Polyester has become the synthetic fiber variety with the largest output among chemical fibers, and is widely used in various aspects of national economy and people's livelihood such as clothing, decoration, home textiles, industrial textiles, national defense, and industrial engineering. In the next five years, it will continue to grow rapidly. However, as a textile material, polyester fiber also has obvious disadvantages. Therefore, choosin...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/08D01F1/07D01F1/04D01F1/10D01D1/00D01D5/08D01D5/092D01D5/096
Inventor 曹欣羊钱樟宝严忠伟王治国周全忠
Owner ZHEJIANG HUAXIN ADVANCED MATERIALS
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