Method for degumming ramie

Abstract

The invention relates to a method for degumming ramie. The method adopts the solution formed by mixing a high-proportion alcohol organic solvent with a small amount of water and degumming reagent to carry out the degumming treatment on the ramie, thus effectively improving the solubility of impurities such as hemicellulose, pectin, cerolipoid and ash, and reducing the degumming difficulty of the ramie; and furthermore, the loss of the strength of ramie fiber is greatly reduced, so that the quality of the ramie fiber is improved, and the ramie fiber is high in quality and efficiency. The degumming technology is simple and convenient, good in degumming effect and high in efficiency, greatly reduces the water consumption in the degumming process of the ramie, and effectively reduces the dosage of a chemical reagent; and the alcohol organic solvent not only is safe and non-toxic, but also can be recycled, so that the method is low in pollution, low in cost, clean, energy-saving, safe and environment-friendly.

Description

technical field [0001] The invention relates to a method for degumming hemp. Specifically, the hemp is degummed by using a solution mixed with a high proportion of alcohol organic solvent, a small amount of water and a degumming reagent. Background technique [0002] my country is a big country in the world of hemp textiles, including ramie, flax, kenaf, jute, hemp and other hemp crops. The hemp fiber textile raw material has won people's favor as a clothing fabric because of its unique excellent performance. However, there have always been many problems in the textile processing technology of hemp, among which the degumming process has always restricted the processing quality of hemp products, and even affected the performance of hemp textiles. Therefore, degumming is a key link in the production of hemp textiles. [0003] The hemp bark directly peeled off from the hemp stalk is called raw hemp. In addition to the cellulose component, the raw hemp also contains a certain a...

AI Technical Summary

Problems solved by technology

However, its disadvantage is that the equipment used for ultrasonic degumming is relatively expensive, and the investment is large, and there is a certain amount of noise in the ultrasonic wave.

However, its disadvantage is that the process conditions of this method are complex and difficult to control.

However, its disadvantage is that this method requires special mechanical equipment, and the process is complicated.

However, its disadvantage is that the method needs to cultivate strains first, and the process is relatively complicated.

Although it adopts the method of microwave irradiating hemp degumming to prepare fibers, it does shorten the degumming process and improve the degumming efficiency, but its disadvantage is that this method will use a large amount of water in the degumming process, and there is no fundamental Solve the problem of large water consumption for degumming, and the waste water after degumming is difficult to recycle

Although the method of degumming ramie with a mixture of acid pectinase, acid cellulase and acid protease did improve degumming efficiency, reduce cost and energy consumption, but its disadvantage is that it may have enzyme Solve the problem of low efficiency

Although it uses organic solvents to degumming hemp, it does have a good degumming effect and an alkali-free and acid-free degumming process, but its disadvantages are that most of the organic solvents used in this method are toxic substances, and the organic solvents are only used for extracting wood. The raw material of element, and still adopt in this degumming method

Although the biological enzyme degumming method it adopts does play a role in simplifying the process steps, reducing costs and improving efficiency, its disadvantage is that this method does not fundamentally solve the problem of large water consumption, and biological enzyme degumming has certain limitations sex