Method for degumming ambary by low-temperature plasma and biological enzyme

Abstract

The invention discloses a method for degumming ambary by low-temperature plasma and a biological enzyme. The method comprises the following steps: firstly, pretreating crude ambary by the low-temperature plasma, i.e., breaking the glucoside bonds in an ambary fiber material by virtue of a large quantity of active particles in the plasma to generate macromolecule free radicals, unsaturated chains and cross-linking layers, thereby enabling the structure of a colloid complex to become loose and parts of colloid molecules to be decomposed into small molecules to reduce the adhesive performance of fiber surface colloid, thus providing good conditions for biological enzyme degumming; secondly, degumming the ambary by high-efficiency biological enzyme, wherein the colloid such as pectin and hemicelluloses can be completely decomposed by means of treating the crude ambary by virtue of the synergistic effect of different-component enzyme systems, so that the aim that the cellulose is not damaged even if the colloid is degraded can be achieved. The method has the characteristics of high degumming efficiency, good degummed ambary product quality and no chemicals, and is energy-saving and environmental friendly.

Description

technical field [0001] The invention relates to the technical field of hemp degumming, in particular to a method for degumming kenaf by combining low-temperature plasma and biological enzymes. Background technique [0002] Raw kenaf is a kind of bast fiber, which contains a variety of different chemical components, 60% of which are cellulose, which can be used as textile raw materials, and 40% are non-cellulose components, which are collectively called colloids. Most of them are pectin and hemicellulose, most of these colloids are surrounded on the surface of the fiber, and the hemicellulose is accompanied by the cellulose, forming a network structure. Before yarn, it must be degummed to remove gum. [0003] The characteristics of kenaf fiber are quite different from those of ramie and flax, mainly because the kenaf fiber is too short, only a few millimeters, which cannot meet the spinning requirements, and can only rely on colloid to form a bundle of fibers of a certain le...

AI Technical Summary

Problems solved by technology

However, these methods have their own deficiencies: the natural water retting method is greatly affected by the environment, takes a long time, has low efficiency and pollutes waters; the degumming of kenaf in the textile industry generally uses high-temperature and high-pressure alkali boiling as the center, supplemented by strong acid and strong bleaching. Chemical degumming process, this process has a strong effect, breaking some macromolecular chains of kenaf fiber, increasing the crystallinity, making the original cross-twisted microfibers become straight, with high rigidity, poor cohesion, obvious itching, and fibers can be The spinnability is reduced, and the pollution to the environment is serious

Although biological degumming has a simple process, low energy consumption and less pollution to the environment, it has the disadvantages of incomplete degumming and poor quality stability of dry hemp. In the end, chemical degumming is needed to meet the requirements of spinning quality.

The existing various degumming processes take a long time, consume a lot, and are easy to cause pollution to the environment