Technique for ramie degumming

Abstract

The invention discloses a technological method of ramie degelatinizing, which comprises the following steps: soaking ramie in hot water with 50-90 DEG C for 30-60min after the handling bundles and mounting frame of the ramie, boiling off by adopting a skillet which comprises ramie degumming agent which is composed of diammonium phosphate and ammonia by 1-4% and comprises hydrogen peroxide which isproportioned with water under normal atmosphere for 30-120min, then washing and hammering, and carrying out a second boiling off in the skillet which comprises 0.1-1% ramie degumming agent for 20-60min, washing with clear water, then soaking in water solution with temperature of 40-70DEG C for 10-30min, taking out and washing, dehydrating, oil feeding, drying, namely obtaining the finished product of refined dry hemp. The technological method of the invention has simple technology, solves the problems of the conventional method that easy to cause larger damages to the ramie fiber which leadsa low output ratio of the ramie and reduces the strong force of the fiber by adopting high concentration strong alkali and strong acid to soak and high pressure to boil off, and the method has obviousbeneficial effects that the cost is low, the finished product rate is improved and the strong force of fiber is protected and no waste water is discharged.

Description

technical field

[0001] The invention relates to a ramie degumming process, in particular to a ramie degumming process for processing ramie into dry hemp as a primary product for textile fibers. Background technique

[0002] Ramie fiber has good strength, and the fabrics made of it absorb moisture quickly and dissipate heat quickly. Its unique natural and high-quality products have been favored by the international market. The ramie plant is mainly composed of cellulose, pectin, lignin and other main components. The primary product of ramie fiber is dry hemp During the processing, it is necessary to decompose and remove the pectin and lignin and other components, and retain the cellulose. The conventional chemical degumming method is to use strong acid soaking and strong alkali high-temperature and high-pressure cooking to decompose the pectin and lignin, and then rinse and beat. After soaking, scouring, washing and beating in strong acid and strong alkali, the retained cellu...