Method for detecting moisture regain of novel textile fabric

A technology for textile materials and moisture regain, which is applied in the direction of analysis and sampling devices using nuclear magnetic resonance, which can solve the problems of test interruption, scorching, improper heating, etc., to improve measurement accuracy, reduce production costs, and consume less samples. Effect

Inactive Publication Date: 2006-08-09
上海宝鼎电子有限公司 +2
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Problems solved by technology

However, since the above-mentioned methods cannot distinguish the free water absorbed by the textile material from the crystal water in the textile material, incorrect moisture regain test results are often produced during the detection process due to improper heating; If the temperature is too high for a long time, the sample to be tested will be scorched or even caught on fire, which will interrupt the test.

Method used

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  • Method for detecting moisture regain of novel textile fabric

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Embodiment Construction

[0017] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0018] see figure 1 , Sampling 1: According to the test requirements of nuclear magnetic resonance technology, sample the textile materials that need to be tested in each process. If necessary, use a high-precision electronic balance to weigh the weight of each sample to be tested, the number of samples to be tested and the sampling method Determined according to the requirements of statistics. Loading sample tube 2: place the tested sample in the sample tube; the diameter of the sample tube for placing the tested sample is 5-40 mm, so that the tested samples of various textile materials can be placed in the sample tube. Detection 3: Measure the area of ​​the absorption peak corresponding to the transverse relaxation time T2 of the free water in the tested sample by using a nuclear magnetic resonance spectrometer, and calculate the weight of the free wa...

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Abstract

Present invention provides textile materials moisture regaining rate detective method. Said method can accurately distinguish textile materials adsorbent free water and textile materials crystal water without damaging textile materials structure, duo to free water easy movement, its transverse direction relaxation time T2 rather short, but crystal water molecular motion slightly slower, its transverse direction time T2 rather long. In nuclear magnetic resonance spectrum chart free water absorption peak area (integration height) is directly proportional to 1Hproton number in free water molecule, thereof accurately measure free water and textile materials moisture regaining rate. Said invention is novel, accuracy, fast, high efficiency, and energy-saving detection method.

Description

Technical field: [0001] The invention relates to nuclear magnetic resonance technology, and also relates to textile material detection technology. It is a method for testing moisture regain of novel textile materials. Background technique: [0002] For textile enterprises, in order to ensure the optimization of the processing technology and the smooth progress of the entire processing process, the product moisture regain of each process must be tested. Moreover, in yarn trading, the moisture regain must be tested from fiber raw materials, yarns to final fabrics, so as to facilitate weight conversion during transactions, so as to improve transaction efficiency and reduce costs. The moisture regain is obtained according to the provisions of the general textile test standard GB T9995-1997 "Oven drying method for the determination of the moisture content and moisture regain of textile materials". The usual method is to put a group of fixed-length yarn samples into an electric o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N24/08G01N1/04
Inventor 孔祥雯裘诚程隆棣薛文良
Owner 上海宝鼎电子有限公司
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