How to check whether the anti-static fabric is made of conductive fabric
In the absence of standardized testing standards, the following methods can help us roughly measure the pros and cons of anti-static ultra-clean fabrics.
1. Measuring the warp and weft density: use a commercially available warp and weft density mirror to measure the warp and weft density of the fabric and compare them.
2. Measuring resistance: Use a commercially available surface resistance tester to measure the warp and weft resistance of the fabric, and compare them. The principles of comparison are:
a. Select the one with relatively small resistance;
b. If the resistance is the same, choose the one with stable resistance value;
c. Pay attention to distinguish whether antistatic agents are added to the fabric during finishing (applicable to conductive silk with only conductive fibers added in the warp direction, commonly known as striped cloth). The method is to measure the resistance in the warp direction and weft direction with a surface resistance tester, such as Similarly, it means that antistatic agent is added, so the measured resistance does not represent the real level.
3. Look at the microstructure: Use a commercially available high-power magnifying glass to look at the quality of the cloth surface, compare the size of the gaps between the fibers (related to the dust filtration rate), see whether there are attachments on the surface of the fibers (related to the amount of dust generated), and see whether the fiber arrangement is Neat and consistent in tightness (if the tightness is inconsistent, the loose part of the fiber is easy to sand during wearing and washing, and it will become dusty when wearing it later). the
4. Check conductive fibers: Conductive fibers are the key raw materials in anti-static ultra-clean fabrics. To check conductive fibers is to see whether conductive fibers are added according to the specifications and what kind of conductive fibers are added. The way to check is: carefully cut the fabric along the edge of the black conductive fiber with scissors, and separate the black conductive fiber, use a magnifying glass to observe whether there is one or several thicker fibers, and use the surface resistance test Measure the electrical resistance of the separated conductive fibers. By removing several strands in a row, it can be basically judged whether each strand of black strand in the fabric contains conductive fibers. (The conductive silk is made of carbon organic conductive fiber, which is black or gray, generally around 20D, between 1F and 6F. In order to meet the strength requirements when weaving, it is necessary to combine an ordinary black or white polyester fiber).
5. Compare fabric process parameters: Suppliers are required to provide basic parameters of fabrics, such as yarn denier (how much D, how much F), warp and weft density, fabric weave, finished product width, dyeing shrinkage and what kind of conductive fiber to use. Through the analysis of the characteristics of anti-static ultra-clean fabrics, we can firmly grasp its main characteristics. According to the cleanliness requirements of the actual application environment, with the help of simple tools, we can choose suitable anti-static ultra-clean fabrics from many fabrics. fabric. It can not only guarantee the quality of products, but also control the cost of ultra-clean clothing, and create good economic benefits for enterprises.