The manufacture of melt-blown cloth production equipment
is not complicated, and the main thing that needs to be overcome in the process problem. Because it involves the parameter ratio of temperature, air pressure, mold, rotation speed, etc., it is necessary to continuously run in and debug to achieve the best effect of the product. The following is the process debugging method of the melt-blown non-woven production line.
Improve product strength
(1)Increase the hot airflow (the fiber is thin, there are many entangled nodes, the fiber is uniformly stressed, and the strength increases, but it will decrease after increasing to a certain extent).
(2)Increase the temperature of the hot air (same as above).
(3)Appropriately increase the weight of the product (within the scope of internal control).
(4)Increase the temperature of the die head (die tip) and other areas.
(5)Appropriately reduce output.
(6)Decrease DCD appropriately (not too small, on the contrary, the brittle strength of the cloth will decrease, combined with other parameters)
(7)Increase the air suction at the bottom of the net (large weight is more obvious).
(8)Use raw materials with a lower melting index.
(1)Reduce the hot airflow or temperature (the fiber becomes thicker, the porosity is large, the resistance is small, and the efficiency becomes poor).
(2)Increase the DCD (increase the bulkiness of the fiber, increase the porosity, and decrease the efficiency).
(3)Reduce the temperature of the spinning environment (the fiber is cooled sufficiently, the structure is fluffy, and the porosity is increased. With hot air, it can achieve the purpose of reducing resistance and improving efficiency).
(4)Reduce the air suction at the bottom of the net (the fiber changes from dense to fluffy, the porosity becomes larger, and the large weight is more obvious).
(5)Lower the working temperature of the heating zone such as the die head (die tip) (the fiber becomes thicker and the porosity becomes larger).
(6)Increase the metering pump (the extrusion volume becomes larger, the fiber becomes thicker, and the porosity increases. It is generally used when quickly transferring orders).
(7)Appropriately reduce the weight (within the scope of internal control).
Improve filtration efficiency
(1)Increase the hot airflow or temperature (increase the fineness of the fiber, reduce the porosity, improve the catching ability, but the resistance increases).
(2)Increase the electrostatic voltage (current) (polarize the fiber, increase the electrostatic field energy of the fiber, and improve its adsorption capacity).
(3)Add powder or other electrets to the raw materials (improve the power receiving capacity and storage time of the fiber, allowing the fiber to carry more charge and charging time).
(4)Increase the air suction at the bottom of the net (increase the density of the fiber and improve the ability to capture the fiber. The large weight is obvious, not commonly used).
(5)Appropriately reduce the output (under the same process, the extrusion volume becomes smaller, the fiber becomes thinner, and the resistance increases).
(6)Increase the working temperature of the die head (die tip) and other areas (the melt fluidity becomes better and the fiber becomes thinner).
(7)Increase the spinning environment temperature (fiber becomes thinner, generally when the room temperature rises, the resistance increases more obviously, and other physical indicators decrease).
(8) Appropriately increase the amount of powder added.
Reduce product CV value
(1)Correspondingly change the working temperature of each zone of the die (the gram weight is small and the temperature is increased, and vice versa)
(2)When the local efficiency, resistance, and the CV value conflict with each other, a baffle can be added to its position (increasing the local spinning environment temperature).
(3)The CV value of the longitudinal grammage is mainly related to the stability of the net-forming system speed.
In summary, the methods mentioned above need to be used according to the actual situation.. If you want to know more about the melt-blown nonwoven production line after reviewing the above content, you can contact us for more detailed information and solutions.
As a professional spunbond non-woven production line
manufacturer, we have accumulated rich experience in production and manufacturing in this field. We have leading production technology and a strict quality management team, which can provide you with safe and high-quality products. We can also provide thoughtful service and develop effective solutions according to your needs. If you want to buy our high-quality meltblown non-woven fabric machine, please contact us immediately!