TESTEX Textile Test Instrument

  In the environmental elements, the greater impact on human comfort is temperature and humidity, and the human body needs to wear different clothes in different environments. Therefore, the study of the human body, clothing, temperature, and humidity of their respective characteristics and interrelationships, is the fundamental basis for our understanding of the heat and moisture comfort of fabrics , which I will discuss in the following six areas. Why do we study temperature and humidity together? Temperature, a physical quantity that indicates the degree of heat or cold of an object, in microscopic terms, is the intensity of the thermal motion of an object’s molecules. Humidity, also known as “relative humidity”, is the amount of water vapor in the atmosphere, expressed as a percentage of the maximum amount of water vapor that air can contain. This percentage content varies with temperature, with warm air containing more water vapor and cold air containing less. Completely dry ...

Temperature and humidity have an obvious influence on the characteristics and properties of textile fibers. Under different temperature and humidity conditions, textile test items, such as breaking strength, uniformity of strips, thread density, pilling, static electricity, etc. will show different test results. In order to ensure the validity of the test data, facilitate data statistics and analysis, and promote the smooth conduct of both sides of the textile trade, ISO has developed ISO 139 “Standard Atmosphere for Conditioning and Testing of Textiles” This article takes cotton fibres as an example and briefly analyses the influence of temperature and humidity on textile property testing. Reference standard: ISO 139, Textiles – Standard atmospheres for conditioning and testing Keywords: temperature and relative humidity, standard atmosphere, specific standard atmosphere, tropical standard atmosphere, conformity assessment The relationship between the characteristics of cotton fibre a...