The working principle of ESD fabrics

Have you been electrocuted by your clothes this winter? Touch a door handle, accompanied by tingling, a burst of current passes through; Take off a sweater, with the crackling sound, the fire lingers around; We all know that this is "static electricity". What is static electricity? How can we prevent in winter?

The following is a list of contents:

• Causes of static electricity

• ESD fabric

Causes of static electricity

Static electricity is a relatively static charge, which is the excess or insufficient static charge on the surface of an object; It is a physical phenomenon that the positive and negative charges on the surface of an object are separated. After any two objects of different materials are contacted and separated, static electricity can be generated, and the common method of generating static electricity is friction to generate electricity. Of course, there are contact electrification, induction electrification and other electrification methods.

So why is there static electricity when you take off your sweater in winter, but not in summer? In fact, in dry and cold winter, the temperature is relatively low, the saturated vapor pressure of the air is relatively low, and the water vapor content of the air is low. The static electricity generated in this way is not easy to guide away through the water vapor in the air and is easy to accumulate. Therefore, static electricity is easy to occur.

ESD fabric

It is generally believed that wearing pure cotton overalls can prevent the accumulation of static electricity in human body, so it is safe. In fact, this view is one-sided, which is basically true only when the air relative humidity is higher than 50%; When the relative humidity is low, the charge of pure cotton products increases significantly. Natural cellulose fibers such as cotton and hemp are less prone to static electricity, but they are not anti-static fabrics. The following is a brief introduction to the three ways to achieve antistatic treatment of domestic fabrics:

Antistatic fiber

New antistatic fibers are used in clothing, such as Richcel fiber, nylon 11 fiber, etc. these fibers have poor adsorption capacity for charge, so as to give full play to the antistatic advantages of fibers and can be durable antistatic. However, the clothing price of this fiber is relatively expensive, and friends with strong demand can choose.

Add conductive wire

At present, most ESD fabrics Used in China are made of metal fiber or acrylic copper complex fiber and other fibers. The conductive mechanism is to generate corona discharge between conductive fibers. When the static voltage on the clothes reaches a certain value, a non sparking corona discharge will be generated, and the static electricity on the clothes will be eliminated naturally. This way can also be durable antistatic.

Antistatic finishing agent

The third is to treat the fabric with anti-static finishing agent, so that the static electricity generated by the clothing can be neutralized by the Yin and yang ions in the surfactant, or form a conductive layer of insoluble polymer on the surface of the clothing, so that it has a certain water absorption, so as to reduce the insulation capacity of the fabric and achieve the anti-static effect. Antistatic finishing agents are divided into non durability and durability. Please pay attention to the functional tag logo when purchasing. Non durable fabrics can only have antistatic performance for a short time, while fabrics with durable antistatic finishing agent can be washed for many times without attenuation of antistatic performance, such as fleece fabrics.

LEENOL is an enterprise specializing in the design, R & D, production, sales and installation of anti-static system engineering. The company's anti-static clothing is produced in strict accordance with a number of national standards with high quality. If you are interested in ESD clothes or ESD shoes, please contact: https://www.leenol.com/