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Method of testing textile dynamic heat-moisture transmission performance

A test method and heat and moisture transfer technology, applied in textile testing, material inspection products, etc., can solve problems such as the inability to truly simulate the heat and moisture transfer of the human body

Inactive Publication Date: 2009-10-07
SHANGHAI UNIV OF ENG SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned dynamic heat and moisture transfer testing devices for fabrics are mainly focused on the sweating thermal flat panel. The flat panel only considers the one-dimensional heat and moisture transfer of the fabric, and cannot truly simulate the heat and moisture transfer when the human body is actually dressed.

Method used

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  • Method of testing textile dynamic heat-moisture transmission performance
  • Method of testing textile dynamic heat-moisture transmission performance
  • Method of testing textile dynamic heat-moisture transmission performance

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Experimental program
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Embodiment 1

[0065] 1. Experimental fabrics

[0066] Four kinds of experimental fabrics are taken, and the specific parameters of each fabric are shown in Table 1. Take 3 samples for each fabric, and the area of ​​each sample is 18×48cm 2 , the experimental results take the average of the test results of three samples.

[0067] Table 1 fabric parameters

[0068]

[0069] 2. Environmental conditions

[0070] The whole experiment is carried out in the artificial climate simulation cabin, setting the ambient temperature: 20°C, relative humidity: 20%, wind speed: 0.10m / s. The temperature and humidity conditions are selected mainly to make the temperature and humidity of the microclimate have a large range of changes, the temperature is from 20°C to 35°C, and the humidity is from 20% to 100%, so that the moisture permeability and heat performance of different fabrics can be clearly distinguished ; The natural wind speed of 0.10m / s is selected for the wind speed, the purpose is to reduce ...

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Abstract

The invention relates to a method of testing the textile dynamic heat-moisture transmission performance, which comprises the following steps: the environmental conditions are set, the whole test is carried out in an artificial climate simulation chamber, and the environmental temperature, the relative humidity and the wind speed required by the test are set; a sample is damped and balanced for 24 hours in advance under the condition of secondary standard and is then put into the artificial climate simulation chamber which is well set; the temperature of simulating skin is kept at 35 DEG C, and the perspiration volume is set into saturated perspiration volume, namely, the simulating skin is moistened completely; the distance between the testing textile and the simulating skin is 10mm, a group of temperature and humidity sensors are arranged in the center of the microclimate, and the distances between the sensors and the sample as well as between the sensors and the simulating skin are both 5mm; the testing is carried out; and testing result data is collected and analyzed. Compared with the prior art, a heat-moisture collecting system can accurately collect the continuous curve of the temperature and the moisture in the simulating microclimate at real time along with the change of time and is convenient for testing, analyzing and comparing the dynamic heat-moisture transmission performance of the textile.

Description

technical field [0001] The invention relates to a test method for the heat and moisture transfer performance of clothing materials, in particular to a test method for the dynamic heat and moisture transfer performance of fabrics. Background technique [0002] The test method and test device of fabric heat and moisture transfer are one of the important contents of the comfort research of clothing materials. Through decades of research by scholars, a variety of fabric heat and humidity comfort testing methods and evaluation indicators have been established. Among them, one is simply measuring heat or humidity, and the heat measuring methods mainly include cylinder method and plate method. , heat pulse method, etc. The evaluation indicators mainly include heat retention rate, thermal conductivity, thermal resistance, etc.; the humidity measurement methods mainly include moisture-permeable cup method, humidity gradient method, and sensitive device method, etc. The evaluation ind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/36
Inventor 柯宝珠
Owner SHANGHAI UNIV OF ENG SCI
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