How to check whether the anti-static fabric is made of conductive wire
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. Measure the warp and weft density: use a commercially available warp and weft density mirror (a piece of 10 yuan) to measure the warp and weft density of the fabric and compare them.
2. Resistance measurement: use a commercially available surface resistance tester (ranging from 1,000 yuan/unit to 4,000 yuan/unit) to measure the warp and weft resistance of the fabrics and compare them. The principle of comparison is:
a. Choose a relatively small resistance;
b. If the resistance is the same, choose a stable resistance;
c. Pay attention to distinguish whether antistatic agent is added to the fabric after 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 and weft directions with a surface resistance tester, such as The same, indicating that an antistatic agent is added, then the measured resistance does not represent the true level.
3. Look at the microstructure: use a commercially available high-power magnifying glass (portable, 40-80 times magnification, 150-200 yuan/piece) to see the quality of the cloth surface, compare the size of the gap between the fibers (related to the dust filter rate), and see the fiber Whether there are attachments on the surface (related to the amount of dust generated), check whether the fiber arrangement is neat and tight (if the tightness is inconsistent, the loose part of the fiber is easy to grind during wearing and washing, and dust will be generated when wearing it later).
4. Check conductive fiber: Conductive fiber is the key raw material in anti-static ultra-clean fabric. Checking conductive fiber is to see whether conductive fiber is added according to the specification and what kind of conductive fiber is added. The method of inspection is: use scissors to carefully cut the fabric along the edge of the black conductive fibers, and separate the black conductive fibers, use a magnifying glass to observe whether there are one or more thick fibers, and use the surface resistance test Test the electrical resistance of the separated conductive fiber. By removing a few in a row, it can be basically judged whether each black thread 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 achieve the strength requirements when weaving, a common black or white polyester is required. fiber).
5. Comparison of fabric process parameters: The supplier is required to provide the basic parameters of the fabric, such as yarn size (how much D, how much F), warp and weft density, fabric weave, finished product width, dyeing shrinkage and what kind of conductive fiber is used. Through the analysis of the characteristics of anti-static ultra-clean fabrics, we can firmly grasp its main features. According to the cleanliness requirements of the actual application environment, with the help of simple tools, you can choose the applicable anti-static ultra-clean fabric from many fabrics. Fabric. It can not only guarantee the quality of products, but also control the cost of ultra-clean clothing, creating good economic benefits for the enterprise.