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Uvioresistant hydrophilic polyester and fiber prepared from uvioresistant hydrophilic polyester

An anti-ultraviolet and hydropolyester technology, applied in the direction of fiber chemical characteristics, single-component polyester rayon filament, rayon manufacturing, etc., can solve the problems of poor heat resistance, limited industrial production, side effects, etc. Good, excellent anti-ultraviolet performance, good hue effect

Active Publication Date: 2015-07-22
CHINESE TEXTILE ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN101864067A is to further improve the anti-ultraviolet performance of polyester, adding organic anti-ultraviolet agent while adding inorganic anti-ultraviolet agent, the anti-ultraviolet performance of the polyester fiber of production reaches excellent, but organic anti-ultraviolet agent is usually poor in heat resistance, easily Produce side effects on the human body, thus limiting its industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Ethylene glycol and terephthalic acid are esterified. After esterification, antioxidants 1010, 622, zinc dioxide, polyethylene glycol ether with a molecular weight of 1000, and diethylene glycol were added to the system for pre-condensation and final polycondensation to obtain a composite copolyester resin. The viscosity is 0.7, wherein zinc dioxide accounts for 1% of the weight of the polymer, polyether accounts for 3% of the weight of the polymer, diethylene glycol accounts for 0.5% of the weight of the polymer, the amount of 1010 added is 0.2%, and the ultraviolet absorber chisorb234 The added amount is 0.1%. Composite copolyester was melt-spun to prepare 75D / 72F DTY. The drip absorption time of the knitted fabric is 2s, the drying rate is 0.2g / h, the UPF value is 60, the B value of the slice is 6, and the light fastness of the fiber is 4.

Embodiment 2

[0040] Ethylene glycol and terephthalic acid are esterified. After the esterification, antioxidant, silicon dioxide, polyethylene glycol ether with a molecular weight of 2000 and diethylene glycol were added to the system for pre-condensation and final polycondensation to obtain a composite copolyester resin with an intrinsic viscosity of 0.7 , wherein silicon dioxide accounts for 2% of the weight of the polymer, polyether accounts for 6% of the weight of the polymer, diethylene glycol accounts for 1% of the weight of the polymer, the addition of antioxidant 1010 is 0.2%, and the ultraviolet absorber The addition of chisorb234 was 0.1%. Composite copolyester was melt-spun to prepare 75D / 72F DTY. The drip absorption time of the knitted fabric is 1s, the drying rate is 0.2g / h, the UPF value is 120, the slice B value is 5, and the light fastness of the fiber is 5.

Embodiment 3

[0042]Ethylene glycol and terephthalic acid are esterified. After the esterification, antioxidant, titanium dioxide, polyethylene glycol ether with a molecular weight of 1000 and diethylene glycol were added to the system for pre-condensation and final polycondensation to obtain a composite copolyester resin with an intrinsic viscosity of 0.7 , wherein titanium dioxide accounts for 2% of the weight of the polymer, polyether accounts for 5% of the weight of the polymer, diethylene glycol accounts for 1% of the weight of the polymer, the addition of antioxidant 1010 is 0.2%, and the ultraviolet absorber The addition of chisorb234 was 0.1%. Composite copolyester was melt-spun to prepare 75D / 72F DTY. The drip absorption time of the knitted fabric is 1s, the drying rate is 0.2g / h, the UPF value is 80, the slice B value is 5, and the light fastness of the fiber is 5.

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Abstract

The invention discloses uvioresistant hydrophilic polyester and fiber prepared from the uvioresistant hydrophilic polyester. The polyester provided by the invention is prepared from the following components of dihydric alcohol, binary acid, a moisture absorption reaction unit and an uvioresistant additive. The organically-modified uvioresistant additive is copolymerized with a third reaction monomer and a low polymer to obtain compounded copolyester. The compounded copolyester resin has excellent flowing property and spinnability, can be used for high-speed spinning, and is also used to produce fibers of various specifications with the filament number being 0.5-10 D to meet different application requirements. The fiber produced from the polyester has long-acting uvioresistant and hydrophilic performance.

Description

technical field [0001] Generally speaking, the present invention relates to synthetic fibers and fabrics thereof, more specifically, the present invention relates to a method for preparing polyesters and fibers thereof with long-lasting hydrophilic and anti-ultraviolet properties. Background technique [0002] With the change of the atmospheric environment and the pollution of the environment, the earth's ozone layer is being rapidly destroyed. Another researcher recently discovered that the sunspot activity has been frequent and intensified in recent years. Therefore, human beings are facing increasing ultraviolet radiation, and human health is increasingly threatened. Excessive ultraviolet radiation is an environmental factor that causes skin diseases, erythema carcinoma, skin cancer, keratitis, cataract and other diseases that threaten human health. Scientists predict that by 2050, the amount of stratospheric ozone will decrease by about 20%, and ultraviolet rays will br...

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 Patents(China)
IPC IPC(8): C08G63/672C08K3/22C08K3/36D01F6/92D01F1/10
Inventor 杨喆钟淑芳陈伟李志勇
Owner CHINESE TEXTILE ACAD