Refined extraction and separation method of China hemp fibers

• Main Authors: XU CHUNCAI, ZHANG MINGUI, ZHANG YANG, NIE BOYANG, NIE YUFENG, WANG XING
• Format: Patent
• Language: Chinese; English
• Published: 29.10.2021
• Subjects: CARBONISING RAGS TO RECOVER ANIMAL FIBRES; CHEMICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIALTO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARYMATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses a refined extraction and separation method of China-hemp fibers. The method comprises the following steps that China-hemp is socked, the China-hemp discharged from a roller press is neatly placed in a net, the China-hemp is socked in a soaking tank together, an alkaline solution with the pH value controlled to be 7-11 is contained in the soaking tank, and soaking time is 6 minutes to 12 minutes; firstly, the soaked China-hemp is transferred into another tank filled with normal-temperature clear water, the China-hemp is subjected to rinsing for 1 minute-3 minutes, then the China-hemp is taken out, spraying is conducted again to remove residual liquid, the washed China-hemp is transferred to double rollers for dehydration, then the China-hemp is conveyed to a wet opener to be opened or a kneading machine to be subjected to a kneading operation, the kneading operation is that the washed China-hemp is directly put into the wet opener or the kneading machine to be kneaded, and then the Chin