Water supply controlled textile moisture evaporation rate testing device

Abstract

The invention relates to a water supply controlled textile moisture evaporation rate testing device, which is characterized by comprising a sample holder used for bearing a sample and a buffer bench,wherein a large part of the sample is located on the sample holder, the area, which is contacted with the sample, of the upper surface of the sample holder is a moisture evaporation area, a small partof the sample is located on the buffer bench, the area, which is contacted with the sample, of the upper surface of the buffer bench is a water absorption area, and the upper surface of the sample holder is flush with the upper surface of the buffer bench. Disclosed by the invention is a water supply controlled textile moisture evaporation rate testing device. The device can supply water continuously at a constant speed and effectively control the moisture evaporation area of the textile, so that the textile is ensured to be in a constant and controllable moisture evaporation state in the test, and the evaporation rate is not affected due to the reduction of moisture in the textile. In addition, the device can automatically record the test result, and has the advantages of high efficiencyand small error.

Description

technical field [0001] The invention relates to a universal moisture dissipation rate measuring device for textiles, which belongs to the technical field of textile performance testing. Background technique [0002] In traditional methods, researchers commonly use the WER method to measure the water evaporation rate of fabrics. The experimental procedure is, in a windless environment with a temperature of 20±1°C and a relative humidity of 65±5%, take 30% of the mass of the test sample and add it dropwise to the center of a plastic plate, and then cover the back of the test cloth sample On the water drop, then place the whole plastic plate and the cloth sample on the electronic balance, record the change of its mass as the water evaporates, and finally calculate the water evaporation rate of the fabric at 30 minutes and 60 minutes, the calculation formula is WER (%) = Evaporated moisture mass / Total mass of dripped moisture. [0003] The method in GB / T 21655.1-2008 "Assessme...

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Problems solved by technology

In addition, since the amount of water supplied is fixed, it is impossible to guarantee the constant moisture dissipation area of ​​the fabric during the test, because different fabrics have different absorption and conduction effects on moisture, so the diffusion area of ​​the same volume of water on the surface of different fabrics is different, and the moisture content is different. The diffusion area is equivalent to the moisture dissipation area of ​​the fabric during the test

Since the indicators measured by the existing test methods do not meet the definition of fabric moisture dissipation rate, they cannot be used to characterize the fabric moisture dissipation rate

[0006] In addition, there are too many manual interventions in the existing test methods, and the fabric will be affected by unstable human factors during the frequent weighing process. Stained on the container, etc., these factors will cause errors in the test and affect the validity and accuracy of the test

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