Processing Machinery
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PP Fiber Nonwoven Application
Fenómeno del problema
【Problem Phenomenon】Nonwoven fibers require raw materials with fine denier, high strength and low cost
Análisis de la causa
PP fiber (polypropylene fiber) is lightweight and chemical-resistant, and is widely used in nonwovens (masks, hygiene materials, geotextiles), ropes, and carpets; spunbond and meltblown are the mainstream processes; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solución
Select spinning-grade PP for nonwovens; use high-MFI material for meltblown; select the grade according to fineness and strength; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusión clave
PP polypropylene fiber is the king of nonwovens and the main force of masks and hygiene materials; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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