How to reduce the static electricity problem of polyester hot melt in the production process?

How to reduce the static electricity problem of polyester hot melt in the production process?
Polyester hot melt is widely used in the textile industry due to its unique physical properties, but it is also accompanied by static electricity problems, which not only affects production efficiency, but may also affect the quality of the final product. The following are some effective ways to reduce the static electricity problem of polyester hot melt in the production process.

1. Use antistatic fiber
The development of antistatic fibers has received policy attention. They can have a volume resistivity of less than 10^10Ω•cm under standard conditions, or a static charge dissipation half-life of less than 60s. Such fibers can achieve antistatic effects by adding antistatic agents, carbon black, metal wires or nano-scale metal oxides.

2. Antistatic modification device
A method for making a nylon hot melt antistatic modification device mentions that the antistatic effect is achieved by soaking the nylon hot melt in an antistatic solution and then rapidly cooling it. This method can reduce the generation of static electricity, but attention should be paid to the coating effect of the solution and the material damage that may be caused during the cooling process.

3. Mixing in conductive staple fibers
Mixed in a small amount of conductive staple fibers during spinning can produce antistatic yarn, reducing or even eliminating the static electricity problem during spinning. This method accelerates the leakage of charge by increasing the conductivity of the yarn, thereby reducing the accumulation of static electricity.

4. Use of antistatic agents
The use of antistatic agents can be adsorbed into textile products through impregnation, baking, etc., to reduce the friction coefficient between products and increase the moisture absorption capacity of products, thereby inhibiting and reducing the generation of static electricity. However, this method has poor durability and is not resistant to washing.

5. Control the temperature and humidity of the production environment
The temperature and humidity in the production environment have a great influence on the generation of static electricity. Reasonable control of humidity and temperature in the production environment, humidity control at 52% to 60%, temperature control at 22 to 28 ℃, can effectively solve the impact of static electricity on the production process

6. Static grounding method
The static grounding method is an effective measure to eliminate static electricity. By increasing humidity and ensuring the static time, the static electricity on the charged body can be leaked to the ground, reducing explosion and fire accidents caused by static electricity

7. Use high-voltage static eliminator
The high-voltage static eliminator can use the principle of tip discharge and be applied in chemical fiber production to neutralize the static electricity on the surface of the insulator through high-voltage corona discharge

8. Process control method
Take measures from the aspects of process flow, equipment structure, material selection, operation management, etc. to limit the generation and accumulation of static electricity. For example, limit the speed of textile product delivery, reduce the friction coefficient and resistivity of polyester, make the polyester surface soft and smooth, and reduce static electricity

In summary, reducing the static electricity problem of polyester hot melt in the production process requires comprehensive consideration of material selection, process flow, environmental control and other aspects. Through the application of the above methods, static electricity problems can be effectively controlled and reduced, and production efficiency and product quality can be improved.