How to Improve The Filtering Effect of Melt Blown Cloth?

Melt blown cloth does not simply block the virus, but uses electrostatic adsorption to adsorb the virus on the melt blown cloth. The filtering performance of the meltblown cloth itself is about 35%, and the filtering performance can be increased to 95% after the electret treatment has an electrostatic effect. At this time, the main body of the Melt-blown Machine plays a key role!

Melt-blown Machine

Melt blown cloth mould

The spinneret used in the melt-blown method is different from other spinning methods in that the spinneret holes must be arranged in a straight line, and the upper and lower sides have high-speed air jet slots. The hole diameter of the melt blown spinneret is 0.15-0.4mm, and the pitch of the spinneret is 0.7mm. Let the delicacy fill all the products.

Filter device

The filter screen of the special screen changer for Melt-blown Fabric is a textile wire mesh disk or a stainless steel mesh disk. Usually several layers of different meshes form a group. The outer coarse mesh is firmer and prevents larger particles from entering the inner fine mesh prematurely. The finer inner mesh can filter the smaller solid particles in the melt stream. If the pressure reaches the set value, the extrusion volume is significantly reduced, or the power consumption of the screw extruder increases, the filter should be replaced in time.

Metering pumps

The function is to accurately measure, continuously convey the meltblown PP material melt to the meltblown die, and generate a predetermined pressure to ensure that the melt can overcome the resistance of the components and the spinneret to be ejected from the spinneret to form a trickle of melt .

Paying attention to the above three elements can improve the filtering effect of the mask. If you want to know more, please contact the Melt Blown Machine Suppliers.