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Functional hollow polyester fiber with hydrophilicity

A polyester fiber and functional technology, which is applied in the field of preparation of negative ion far-infrared hollow polyester fibers, can solve the problems of loss of negative ion effect, decrease of negative ion far-infrared and anti-ultraviolet effects, etc., and achieves the effect of high negative ion release rate

Inactive Publication Date: 2012-04-11
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But fabrics with negative ion far-infrared functions are far from meeting people's needs. In order to make polyester fabrics have better wearing comfort and achieve dryness, moisture permeability, warmth retention, and health care, the patent application No. 02135325 " "Preparation method of functional hollow microporous polyester fiber" adopts conventional polyester, modified easy-to-hydrolyze polyester, and functionally modified polyester masterbatch, mixes them at an optimal weight ratio of 90:45:5, and passes through hollow spraying Melt spinning of silk sheets, the spun fibers are subjected to alkali weight reduction treatment after weaving, and a hollow microporous polyester fabric with negative ions, far-infrared and anti-ultraviolet functions is prepared
However, when the polyester fiber produced by this method is subjected to alkali reduction treatment, functional particles such as expensive tourmaline, ceramic powder and anti-ultraviolet agent will partially fall off along with the dissolution of the modified easily hydrolyzed polyester. Its loss rate is as high as 30%, resulting in greatly reduced effects of negative ions, far-infrared and anti-ultraviolet
In addition, although the microporous structure of the fiber improves the moisture absorption and moisture permeability of the fabric to a certain extent, it does not change the hydrophobic characteristics of the fiber. Water film, causing tourmaline to be covered by this layer of hydrophilic film, thus losing the effect of negative ions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] After the raw materials of polyester A, hydrophilic modified polyester masterbatch B, tourmaline powder polyester masterbatch C and ceramic powder polyester masterbatch D are sliced ​​and dried, they are input into the screw for blending according to the mass percentage of 53:20:20:7 Melting, in which the weight of tourmaline powder and ceramic powder accounts for 6% and 2% of the total weight of raw materials respectively, and is fed into the spinning box after being metered by a metering pump (spinning temperature is 290°C). After extrusion, it is cooled by air blowing, and is drawn (drawing temperature 90°C, draw ratio 2.5 times), shaping (temperature 115°C), winding (speed 3000m / min), and a functional hollow film with hydrophilicity is obtained. Polyester FDY filament.

Embodiment 2

[0017] After the raw materials of polyester A, hydrophilic modified polyester masterbatch B, tourmaline powder polyester masterbatch C and ceramic powder polyester masterbatch D are sliced ​​and dried, they are input into the screw for blending according to the mass percentage of 53:20:7:20 Melting, in which the weight of tourmaline powder and ceramic powder accounts for 2% and 6% of the total weight of the raw materials respectively, after being metered by a metering pump, it is input into the spinning box (spinning temperature 290°C), and the special-shaped spinneret of "C" type After extruding, it is cooled by air blowing and coiled (speed 2500m / min). The wound POY yarn is stretched and stretched (drawing temperature 160°C, draw ratio 1.5 times), and a functional hollow polyester DTY filament with hydrophilicity is obtained.

Embodiment 3

[0019] After the raw materials of polyester A, hydrophilic modified polyester masterbatch B, tourmaline powder polyester masterbatch C and ceramic powder polyester masterbatch D are sliced ​​and dried, they are input into the screw for blending according to the mass percentage of 65:5:15:15 Melting, in which the weight of tourmaline powder and ceramic powder accounts for 4% and 4% of the total weight of the raw materials respectively, after being metered by a metering pump, it is input into the spinning box (spinning temperature 290 ° C), extruded by an arc-shaped special-shaped spinneret After blowing out, it is cooled by blowing, winding (speed 900m / min), bundled in the barrel, and then passed through two stages of drafting: primary drafting (drawing temperature 80°C, drafting ratio 3.0 times), secondary drafting (drafting Stretching temperature 120°C, drafting ratio 1.0 times), the fiber is crimped, subjected to 110°C relaxation heat setting treatment for 45 minutes, then sl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a functional hollow polyester fiber with hydrophilicity. A preparation process for the functional hollow polyester fiber comprises the following steps of: blending four components such as polyester, hydrophilic modified polyester master batches, tourmaline powder master batches and ceramic powder master batches according to a certain proportion, melting and spinning the mixture, extruding the mixture by using a 'C'-shaped or circular spinneret plate, and performing post-treatment to obtain the functional hollow polyester filament yarns or staple fibers with the hydrophilicity. The functional hollow fiber with the hydrophilicity has an extremely high anion release rate and far infrared reflectivity, endows obtained textile fabrics with the good effects of moisture absorption, warm keeping and healthcare, and can be widely applied to the field of clothing.

Description

technical field [0001] The invention relates to a functional hollow fiber, in particular to a method for preparing a hydrophilic anion far-infrared hollow polyester fiber. Background technique [0002] With the progress of society and the continuous improvement of people's quality of life, it has become a trend to pursue functions such as dryness, comfort, warmth, and health care of fabrics. Negative ion far-infrared fabric is a new functional textile in recent years, which has the functions of keeping warm and health care. It can absorb the heat released by the human body or in the environment, release negative ions and emit far-infrared rays, and act on the human body. It can not only activate cells, inhibit the oxidation or aging of the body, improve blood circulation, promote metabolism, improve the air environment, and promote human health. Healthy, and has antibacterial, deodorant and other functions, deeply favored by people. As a health care material, tourmaline po...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/92D01F1/08D01F1/10D01D5/24
Inventor 赵茂成张娜曾彬雅庄荣利
Owner SHANGHAI VITA SCI & TECH
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