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A method for anti-aging modification of polyester fabric based on electron irradiation

A polyester fabric, electron irradiation technology, applied in textiles, papermaking, fiber processing and other directions, can solve problems such as poor durability, and achieve the effects of good anti-aging effect, high graft uniformity and high uniformity

Active Publication Date: 2017-09-15
信诚染织(福建)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this modification method, due to the fact that the UV absorber and the fiber are not bonded by chemical bonds and the molecular weight is small, the durability is poor.

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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  • A method for anti-aging modification of polyester fabric based on electron irradiation
  • A method for anti-aging modification of polyester fabric based on electron irradiation
  • A method for anti-aging modification of polyester fabric based on electron irradiation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: Modified polyester fabric by radiation grafting process

[0037] Accurately weigh a certain amount of polyester fabric, soak it in a solution containing 10wt% HAB for 15 minutes, dip it twice and roll it twice, and the excess rate is 100%. After sealing, it is irradiated by electron beams, and the irradiated fabric is baked at 60°C for 30 minutes , washed to remove surface homopolymer, dried at 60°C, weighed, and calculated weight gain.

[0038] The influence of different electron radiation doses on the weight gain rate was compared, and the results were as follows: figure 1 shown. With the increase of radiation dose, the weight gain rate of the fabric is constantly increasing, but when the radiation dose reaches 260kGy, the weight gain rate reaches the maximum, which is about (7.5±0.2)%. When the amount of radiation is too large, the weight gain rate will drop rapidly to (4±0.1)%. The possible reason is that the increase in the amount of radiation makes...

Embodiment 2

[0040] Embodiment 2: the comparison of the modified polyester fabric obtained by different grafting techniques

[0041] The present invention also compares the structure and properties of the modified fabric prepared by the traditional process (grafting reaction under the action of the initiator), the radiation process of the present invention, and the original polyester fabric before modification.

[0042] The specific method of the traditional process is: accurately weigh a certain amount of polyester fabric, soak it in the benzoyl peroxide solution containing 10wt% HAB and 0.2wt% for 15min, dip two times and roll it twice, and the excess rate is 100% %, the bath ratio is 1:30, pre-baked at 50°C for 5 minutes, then baked at 120°C for 5 minutes, washed with acetone to remove surface homopolymer, and dried at 60°C.

[0043] (1) Weight gain rate, UPF value and breaking strength performance comparison

[0044]The method for modifying fabrics by traditional techniques in Table 1...

Embodiment 3

[0058] Embodiment 3: Modified polyester fabric by radiation grafting process

[0059] Accurately weigh a certain amount of polyester fabric, soak it in a solution containing 10wt% HAB for 15min, and the bath ratio is 1:30. Two dipping and two rolling, the excess rate is 100%, after sealing, it is irradiated by electron beam, the radiation dose is 260kGy, the irradiated fabric is baked at 60°C for 30min, washed with acetone to remove the surface homopolymer, and then dried at 60°C to obtain the finished fabric Polyester fabric modified by electron beam irradiation.

[0060] The weight gain rate of the obtained polyester fabric is (7.5±0.2)% UPF value is 235±15, the breaking strength in warp direction and weft direction is 935±26 and 610±22 respectively, and the strong retention rate after 300h of ultraviolet irradiation It can reach (68.3±2.5)%, which is 8% higher than the strength retention rate of the grafted fabric under the action of the initiator, and 20% higher than the ...

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 an anti-aging modification method of polyester fabric based on electron irradiation, and belongs to the technical field of textile finishing. According to the method, an ultraviolet absorbent is grafted to polyester fabric in a mode of electron beam irradiation grafting, so that the anti-aging polyester fabric is obtained, with the weight gain rate of HAB reaching (7.5 plus or minus 0.2) percent, the UPF value reaching 135 plus or minus 15, and can still keep high breaking strength; meanwhile, the grafting uniformity is high, the anti-aging effect is good, and the break strength retention can reach (68.3 plus or minus 2.5) percent after ultraviolet radiation for 300 h. The method is convenient, does not need an initiator, is easy to control, and can achieve continuous production.

Description

technical field [0001] The invention relates to an anti-aging modification method of polyester fabric based on electron irradiation, which belongs to the technical field of textile finishing. Background technique [0002] With the advancement of society and technology, environmental problems are becoming more and more serious, and the ozone layer in the air is severely damaged, which causes ultraviolet rays to pass through the ozone to reach the ground. It is well known that ultraviolet light and some visible light can destroy the chemical bonds in organic macromolecules, resulting in the degradation of organic matter and shortening the service life. Polyester fiber is widely used in civil and industrial fiber products such as clothing and car seats due to its good mechanical and chemical properties. These materials are exposed to sunlight for a long time, resulting in a greatly shortened service life. Therefore, the anti-aging research of polyester is very necessary, and ...

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): D06M14/32
CPCD06M14/32
Inventor 黄丹杨義刘欢骆华妮
Owner 信诚染织(福建)有限公司