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How to control the quality of nonwovens

by:XINYU Non-woven     2022-03-30

Non-woven fabric is a non-woven fabric, which is processed by chemical methods. It is a new type of fiber product with the advantages of breathability and softness. Today, non-woven fabric manufacturers will introduce various factors that affect the quality of non-woven fabrics.

1. The temperature of the spinning box should be slightly higher. The purpose is to increase the flow performance of the melt and ensure the smoothness of the spinning. Conducive to the smooth progress of production.

2. The melt temperature is too low, and the viscosity is too high, which increases the shear stress of the melt in the spinneret hole, resulting in melt fracture, poor spinnability, and filaments on the fabric surface.

3. If the temperature of each zone of the extruder is too high, it is easy to cause the slices to be ringed at the feeding port and cannot be fed. If the temperature is too low, the pressure of the melting section will be increased, so that the slices cannot be fully melted, resulting in feeding resistance.

4. The melt pressure is low, the melt distribution is uneven, the thickness of the melt thin stream formed is uneven, and the surface is irregular; the melt pressure is too high, which is easy to cause melt fracture.

5. Introduced by Wenzhou Xinyu Non-woven Fabric Co., LTD., the spinning speed affects the stability of spinning, the spinning speed is low, and the number of melt trickles ejected from the spinneret holes on the spinneret Less, easy to cool, only a small amount of cooling air is needed to meet the process needs.

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