Low-alkali degumming process for hemp plants at room temperature

Abstract

The invention relates to a low-alkali degumming process for hemp plants at room temperature, and belongs to the field of primary textile processing. The process is characterized by changing a ramie degumming process into a low-alkali soaking process at room temperature and comprising the following steps of performing pretreatment on raw ramie, soaking the raw ramie into alkali at room temperature, stamping the ramie, dehydrating, feeding oil, dehydrating, drying and degumming to obtain degummed ramie. The degumming process has the advantages of simpleness due to primary low-alkali soaking at room temperature, small and safe equipment investment, low energy consumption, low pollution due to low using amount of chemical agent, simple waste water treatment due to low chromaticity of degumming waste water and degumming uniformity and good whiteness of the obtained degummed ramie.

Description

technical field

[0001] The invention relates to a degumming production process for various hemp plants, and belongs to the field of primary textile processing. Background technique

[0002] Hemp plants generally refer to plants that can extract spinnable fibers, mainly including ramie, flax, hemp, jute, sisal, apocynum, pineapple, hibiscus, white hemp, etc., as well as plants that can extract fibers such as paper mulberry . The epidermis is composed of cellulose, hemicellulose, lignin and pectin, but the proportions are different. In addition to cellulose, other substances known as gums, these amorphous crusts bind the fibers together and make them stiff. To spin the cellulose in the raw hemp, the gum must be removed without damaging the fibers as much as possible, so that the bonded fibers can be separated and turned into fluffy spinnable fibers. This process is called degumming. .

[0003] The degumming of hemp plants basically follows the chemical degumming process of...

Images