Analysis of the morphology and density of PP FDY yarn!

1. PP FDY yarn hygroscopicity and dyeability: polypropylene fiber has very little hygroscopicity, almost no moisture absorption, and the moisture regain under ordinary atmospheric conditions is close to zero. But it has a wicking effect, can transfer water vapor through the capillary in the fabric, and does not have any absorption effect by itself.

2. PP FDY yarn is acid and alkali resistant: Polypropylene fiber has good chemical resistance. In addition to concentrated nitric acid and concentrated caustic soda, polypropylene fiber has good resistance to acids and alkalis.

3. PP FDY yarn light resistance: Polypropylene fiber has poor light resistance, poor thermal stability, easy aging, and is not resistant to ironing. However, the anti-aging performance can be improved by adding anti-aging agent during spinning. In addition, polypropylene fiber has good electrical insulation, but it is easy to generate static electricity during processing.

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