A device and method for testing the dehumidification rate of floating textiles

Abstract

The invention provides a floating textile moisture dissipation rate test device and method, which includes a moisture dissipation sealed box for controlling and ensuring a constant test environment, the water tank is arranged in the moisture dissipation sealed box, and a weighing sensor is arranged at the bottom of the water tank , the floating plate floats on the water surface in the water tank, the hot plate is set on the floating plate, the wicking water supply cloth is spread on the hot plate, and the two sides of the wicking water supply cloth are deep below the water surface of the water tank, and the textile to be tested is laid flat On the wicking water supply cloth, a fan is provided on one side of the top of the moisture-dissipating sealed box to provide air flow. The floating textile moisture dissipation rate test device provided by the present invention specifies the moisture dissipation area, and at the same time stipulates that the test fabric absorbs water through wicking, and changes the wicking height of the fabric by changing the height of the floating plate, thereby controlling the water absorption of the fabric and ensuring During the test, the fabric is in a constant and controllable dehumidification state. The device can automatically record the test results, which has the advantages of high efficiency and small error.

Description

technical field [0001] The invention belongs to the technical field of quick-drying performance testing of textiles, and in particular relates to a universal moisture dissipation rate testing device and method for textiles. Background technique [0002] GB / T 21655.1—2008 "Assessment of Moisture Absorption and Quick-drying of Textiles Part 1: Single Combination Test Method" stipulates in the textile evaporation rate test that the sample is placed under standard atmospheric conditions (temperature 20±2°C; relative humidity 65± 3%) after lowering the humidity balance, place it flat on the test platform (with the fabric close to the skin facing up), use a burette to gently drop 0.2mL of water on the sample, and wait for the water to spread completely on the surface of the sample Weigh it immediately, and then hang it naturally and flat. Weigh the mass every 5 minutes, calculate the water evaporation of the sample in every 5 minutes, draw the time-evaporation curve, intercept a ...

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Problems solved by technology

Therefore, in the drip test method, although the quality of water is constant, the moisture dissipation area is not fixed, and the indicators measured by this method do not meet the definition of moisture dissipation rate.

However, the method in Chapter 8.25 of JIS L 1096:2010, although the moisture dissipation area of ​​the fabric is controlled, cannot control the moisture dissipation state of the fabric, because the evaporation rate of water in the fabric is not constant during the natural drying process. It gradually decreases from fast to slow, which does not meet the definition of fabric moisture dissipation rate

[0006] In addition, too much manual intervention in the existing test method may have an impact on the distribution of water in it. For example, waving the sample during operation will affect the wind speed of the environment and accelerate the evaporation of water, thereby affecting the accuracy and stability of the test results. The evaporation rate is higher than the real situation

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