polypropylene staple fiber is favored by the textile industry due to its superior moisture conductivity and quick-drying properties, good carding and spinning properties, and fast melting, good filling and sound insulation properties. So, does polypropylene staple fiber production need to be inspected before it leaves the factory? Now let Haian Qinfeng, who is specialized in producing polypropylene staple fiber, explain it to everyone.

After the polypropylene staple fiber product is finished, it is necessary to test the oil content of the spinning. At present, the extraction method is used, that is, the oil on the fiber is extracted with organic solvents (such as carbon tetrachloride, ether, etc.). The fiber content of the fiber was determined by changing the silk weight before and after extraction. The current measured results are always much higher.

It is learned from the relevant information that general organic solvents often have a dissolving effect on polypropylene resins. For example, polypropylene resins have a 5-10% reduction in ether at 20 ° C and a 1.5-5% reduction in acetone. For the oil method and oil tank concentration, the domestic resin wire contains more oil, while the imported resin wire contains less oil. The spinning oil content of imported materials is generally 0.6-0.7%, while the spinning oil content of domestic resins is usually about 0.9-1.0%, because domestic resins are added with various additives, and various additives are more easily extracted by organic solvents, increasing Up the oily weight.

Therefore, the current method is used. The results obtained by measuring the oil content of polypropylene are often much higher. Finished oil can only be used as a general relative reference.

It can be seen that after the polypropylene staple fiber finished product, it still needs to pass various inspections before it can leave the factory.

Hai'an Qinfeng's polypropylene staple fiber products will only pass into the customer's hands after strict inspection. Its quality is completely assured. If you need to purchase, please come to Haian Qinfeng to see it.

Products such as pp staple fiber, polypropylene staple fiber, polyester staple fiber, functional polypropylene staple fiber, and functional polyester staple fiber are high-quality products from Hai'an Qinfeng.

You also want to know more product information, please contact: Mr. Qian 13962787918, 13813743991 Website: http://www.glory-fiber.com/