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Novel honeycomb microporous structure functional polyester modified short fiber and its preparing method

A microporous structure and polyester modification technology, applied in the field of spinning, can solve the problems of poor dyeability, low added value, no moisture absorption and quick drying, etc., and achieve good softness, high added value, and good versatility. Effect

Inactive Publication Date: 2006-11-08
谢建强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional polyester staple fiber products have the following defects: such as poor hand feeling, pilling, poor dyeability under high temperature and high pressure dyeing (difficult dyeing and finishing after blending with animal and plant fibers, complex applicability, not widespread, and large environmental pollution) , and the dyeing color fastness is not high, there is no moisture absorption and quick-drying effect, stuffy feeling when wearing, poor air permeability, low added value and poor wearability, etc.
At present, the moisture-absorbing and sweat-wicking polyester staple fibers produced internationally and domestically use ordinary PET chips, which only change the cross-sectional shape (+ font) of the fiber by physical means to increase the specific surface area to improve certain wearability, and its function is single. , did not fundamentally solve its functional strength, environmental protection and the nature of ordinary polyester staple fibers
It cannot maintain the effective effect of its function after being blended with various other short fibers, and cannot overcome the defects of its initial and later adsorption capacity and short function retention time

Method used

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  • Novel honeycomb microporous structure functional polyester modified short fiber and its preparing method
  • Novel honeycomb microporous structure functional polyester modified short fiber and its preparing method
  • Novel honeycomb microporous structure functional polyester modified short fiber and its preparing method

Examples

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Effect test

Embodiment 1

[0057] Embodiment 1: This novel honeycomb microporous structure functional polyester modified staple fiber has a honeycomb microporous structure. Because the fiber has a honeycomb microporous structure, it has efficient moisture absorption and quick drying according to the principle of capillary wicking.

[0058] refer to figure 1 : the production method of this polyester modified chip, comprises the following steps:

[0059] 1) First, mix terephthalic acid, ethylene glycol, dimethyl isophthalate-5-sodium sulfonate, polyethylene glycol ether, ethylene glycol antimony and triphenyl phosphate in a slurry kettle in proportion Adequate mixing and pulping;

[0060] 2) Next, the slurry is introduced into an esterification kettle for esterification, the temperature is controlled at 200°C to 280°C, and the following esterification reaction occurs, and the reaction equation is as follows:

[0061]

[0062] 3) Again, in the polycondensation kettle, polyethylene glycol ether and dime...

Embodiment 2

[0116] Embodiment 2: The difference from Example 1 is that this novel honeycomb microporous structure functional polyester modified short fiber contains bamboo charcoal particles of 1.0 μm to 1.2 μm, and the bamboo charcoal particles account for 1.5% to 1.5% of the fiber weight. 2.3%. During preparation, polyester modified slices with microporous structure tendency are used, and bamboo charcoal masterbatch made of subnano-scale bamboo charcoal particles are added in the spinning process (bamboo charcoal masterbatch and modified polyester with preliminary microporous structure tendency Slices enter the screw extruder together for melt spinning), and finally make honeycomb microporous bamboo charcoal fibers. The surface and cross section of the fiber are of honeycomb microporous structure, and the bamboo charcoal particles are evenly distributed on the surface, surface layer and inner layer of the fiber, which can give full play to the function of bamboo charcoal. Normal temper...

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Abstract

The present invention relates to a new kind of modified functional polyester short fiber in honeycomb microporous structure and its preparation process. The modified functional polyester short fiber has surface and cross section honeycomb microporous structures. The modified functional polyester short fiber has high flexibility, less pilling tendency, high hygroscopicity, normal temperature and normal pressure cation dyeing power and other excellent performance, and is suitable for being blended with other short fibers to maintain the excellent performance.

Description

technical field [0001] The invention relates to the field of spinning, in particular to a novel honeycomb microporous structure functional polyester modified staple fiber and a preparation method thereof. Background technique [0002] At present, the traditional polyester staple fiber products have the following defects: such as poor hand feeling, pilling, poor dyeability under high temperature and high pressure dyeing (difficult dyeing and finishing after blending with animal and plant fibers, complex applicability, not widespread, and large environmental pollution) , and the dyeing color fastness is not high, there is no moisture absorption and quick-drying effect, stuffy feeling when wearing, poor air permeability, low added value and poor wearability. At present, the moisture-absorbing and sweat-wicking polyester staple fibers produced internationally and domestically use ordinary PET chips, which only change the cross-sectional shape (+ font) of the fiber by physical me...

Claims

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Application Information

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IPC IPC(8): D01F6/62D01D5/247D01D5/26D01F1/10
Inventor 谢建强曹双存
Owner 谢建强
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