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Method for evaluating use tolerance of nanoparticles contained in fibers of sportswear

A nanoparticle and evaluation method technology, which is applied in the direction of particle and sedimentation analysis, particle size analysis, preparation of test samples, etc., can solve the problems of lack of accuracy in qualitative and quantitative research, difficulty in separation and identification of nano-components, lack of technical specifications, etc. , to achieve the effect of promoting sustainable development

Inactive Publication Date: 2019-05-31
CHINESE ACAD OF INSPECTION & QUARANTINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that due to the extremely complex composition of textiles, it has brought great technical difficulties to the separation and identification of nano-components, which is also a worldwide problem in this field.
Most of the apparel products on the market are organic substrates, and their nano-components are inorganic substances. The simulation of the use process and related real-time observation lack corresponding technical specifications, resulting in the lack of accuracy of subsequent qualitative and quantitative research, and the corresponding risk assessment. unable to proceed
This research status makes the identification technology and certification method of such components lacking, and it is impossible to establish corresponding supporting testing specifications and systems.

Method used

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  • Method for evaluating use tolerance of nanoparticles contained in fibers of sportswear
  • Method for evaluating use tolerance of nanoparticles contained in fibers of sportswear
  • Method for evaluating use tolerance of nanoparticles contained in fibers of sportswear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Detection of Nanoparticles Contained in the Fabric Fiber of a Sports Top of a Certain Brand

[0038]Take fabric slices with a side length of about 2 cm from different parts of the product, and further cut and mix them three times. The specific steps include the following steps: the fabric samples collected by sampling, that is, fabric slices, are immersed in liquid nitrogen for rapid freezing, and then transferred to an agate mortar. Press it to make it break into irregular pieces, then use a medicine spoon to fully mix and mix evenly, roughly divide the mixed fabric pieces into three equal parts, take one part, and repeat the above freezing, crushing, mixing, roughing The process is divided into 2 times to obtain mixed fibers.

[0039] Select a mixed fiber with a side length of about 0.5 cm, fix it on the SEM sample stage, and plate a platinum film in an ion sputtering device with a sputtering current of 30 mA, a sputtering time of 20 s, and a coating thickn...

Embodiment 2

[0040] Example 2 The detection of nanoparticles contained in a certain brand of sports pants fabric fibers

[0041] Take fabric slices with a side length of about 2 cm from different parts of the product, and further cut and mix them three times. The specific steps include the following steps: the fabric samples collected by sampling, that is, fabric slices, are immersed in liquid nitrogen for rapid freezing, and then transferred to an agate mortar. Press it to make it break into irregular pieces, then use a medicine spoon to fully mix and mix evenly, roughly divide the mixed fabric pieces into three equal parts, take one part, and repeat the above freezing, crushing, mixing, roughing The process is divided into 2 times to obtain mixed fibers.

[0042] Select a mixed fiber with a side length of about 0.5 cm, fix it on the SEM sample stage, and plate a platinum film in an ion sputtering device with a sputtering current of 10 mA, a sputtering time of 200 s, and a coating thickne...

Embodiment 3

[0043] Example 3 The detection of nanoparticles contained in a certain brand of sports socks fabric fibers

[0044] Take fabric slices with a side length of about 1 cm from different parts of the product, and further cut and mix them three times. The specific steps include the following steps: immerse the collected fabric samples, that is, fabric slices, into liquid nitrogen for quick freezing, and then transfer them to an agate mortar. Press it to make it break into irregular pieces, then use a medicine spoon to fully mix and mix evenly, roughly divide the mixed fabric pieces into three equal parts, take one part, and repeat the above freezing, crushing, mixing, roughing The process is divided into 2 times to obtain mixed fibers.

[0045] Select a mixed fiber with a side length of about 0.5 cm, fix it on the SEM sample stage, and plate a cadmium film in an ion sputtering device with a sputtering current of 15 mA, a sputtering time of 150 s, and a coating thickness of about 3 ...

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Abstract

The invention discloses a method for evaluating the use tolerance of nanoparticles contained in fibers of sportswear, and the method comprises the following steps: (1) slicing the sportswear, performing sampling according to different parts, preparing mixed fibers, and randomly selecting a sample from the mixed fibers; (2) carrying out SEM (scanning electron microscope) observation of the sample,and determining the type, distribution and content of the nanoparticles of the sample; (3) repeatedly soaking the mixed fibers by using one or more of acidic artificial sweat, alkaline artificial sweat and detergent solution, and simulating the use scene of the mixed fibers in the movement process; (4) randomly selecting a sample from the soaked mixed fibers, performing drying, and then carrying out SEM observation, so as to determine the peeling degree of the nanoparticles. The method provided by the invention can achieve the accurate capturing of the process of peeling the nanoparticles fromthe surface of the fibers in the use process, achieves the inspection of the use tolerance of a product, and provides a necessary detection means for true and false identification, functional evaluation and safety evaluation of a high-tech product.

Description

technical field [0001] The invention relates to the field of high-tech textile detection, in particular to a rapid method for detecting nanoparticles contained in sportswear fibers by using an electronic imaging device, and simulates and evaluates its peeling during use. Background technique [0002] Nanotechnology products have flourished in recent years and have had a huge impact on many fields such as biomedical research, electronics industry and chemical industry. With the continuous development of social economy, people pay more and more attention to clothing products, and the application of nanotechnology in the textile field has attracted more and more attention. Nano ultrafine powder is extremely small in size and variable in shape. It can be used as an active substance with functions such as sterilization, self-cleaning, sun protection, and heat generation. And clothing research and development provides a new way. [0003] At the same time, scholars and politician...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00G01N15/02G01N1/42G01N1/28
Inventor 李亚辉李俊芳李梦晨杨海峰席广成
Owner CHINESE ACAD OF INSPECTION & QUARANTINE