Floating textile moisture loss rate testing device and method

Abstract

The invention provides a floating textile moisture loss rate testing device and method. The device comprises a moisture loss sealing box used for controlling and ensuring a constant testing environment. A water tank is arranged in the moisture loss sealing box. The bottom of the water tank is provided with a weighing sensor. A floating plate floats on a water surface in the water tank, a hot plateis arranged on the floating plate, and wicking water supply cloth is laid on the hot plate. The two sides of the wicking water supply cloth are stretched below the water surface of the water tank. Atextile to be tested is laid on the wicking water supply cloth. The single side of the top of the moisture loss sealing box is provided with a fan used for providing airflow. By using the floating textile moisture loss rate testing device, a moisture loss area is stipulated, and at the same time, a tested fabric is stipulated to absorb moisture through a wicking; and through changing the height ofthe floating plate, the wicking height of the fabric is changed and then the water-absorbing capacity of the fabric is controlled, and the fabric is ensured to be a constant and controllable moistureloss state during testing. The device can automatically record a testing result and has the advantages of high efficiency and slight errors.

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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