Japanese wet-laid non-woven fabrics are also called wet-laid non-woven fabrics. Wet-laid non-woven products are increasingly showing their importance nowadays.
This process requires breaking the raw materials into fibers, immersing them in water, and then forming them on the inclined mesh section.
The specific process is to dissolve the fiber-forming polymer in an appropriate solvent to obtain a solution with a certain composition, a certain viscosity and excellent spinnability, which is called spinning solution.
The spinning solution can also be obtained directly from homogeneous solution polymerization.
The polymer swells before dissolving, that is, the solvent first enters the polymer, causing the distance between the macromolecules to continuously increase, and then dissolves to form a uniform solution.
The whole process takes a long time, and the speed of the swelling process has an important impact on the dissolution speed.
Before spinning, the polymer solution must go through pre-spinning preparation processes such as mixing, filtration and degassing to make the properties of the spinning stock solution uniform and remove the gel blocks and impurities contained therein. Remove air bubbles from the liquid.
In the production of viscose fiber, pre-spinning preparation also includes a maturation process to make the viscose have the necessary spinnability.
Japanese wet-laid non-woven fabrics not only require a wide variety of bulky dope preparation and pre-spinning preparation equipment, but also coagulation baths, circulation and recovery equipment. The process flow is complex, and the investment in plant construction and equipment is high. The spinning speed is low and therefore the cost is higher.
Suzhou ptfe filter membrane manufacturer supplies Japanese wet-laid non-woven fabrics. We have a complete service system, caring before sales, attentiveness during sales, and rest assured after sales! The company can provide samples and arrange sales personnel for door-to-door service if there are other requirements.
You are welcome to come to the company for inspection or enter the store to consult us at any time.
</p
