Fibrilia biological dyeing technology based on laccase catalytic polymerization reaction

Abstract

The invention discloses a fibrilia biological dyeing technology based on laccase catalytic polymerization reaction. The fibrilia biological dyeing technology comprises the following steps: A, carryingout singeing treatment on fibrilia; B, immersing and treating singed fibrilia into an alkaline solution, and removing surface impurities and residual slurry; C, putting and repeatedly washing the fibrilia after alkaline treatment in clear water, and putting and drying the fibrilia in a low-temperature drying oven; D, immersing the fibrilia after the drying treatment in a buffer solution containing a phenols monomer and laccase, and carrying out biological dyeing; E, carrying out color fixing and steaming treatment on the fibrilia after the biological dyeing; F, finally carrying out soap boiling and water washing on the fibrilia. The fibrilia biological dyeing technology adopted by the invention is simple in operation and low in cost, is environment-friendly and pollution-free and is capable of improving dyeing and color fixing effects of the fibrilia.

Description

technical field [0001] The invention relates to the technical field of hemp fiber dyeing, in particular to a biological dyeing process of hemp fiber based on laccase-catalyzed polymerization reaction. Background technique [0002] In recent years, with the increasingly stringent environmental protection regulations at home and abroad, the clean dyeing and processing of various fibers has received high attention. Traditional dyeing methods and theories based on small molecule synthetic dyes face many challenges, mainly reflected in: complex preparation process of synthetic dyes, large environmental pollution; high requirements for dyeing conditions (often requiring harsh pH value and high temperature), complex dyeing process, and water consumption. High energy consumption and difficult treatment of dyeing wastewater. Commonly used dyes have low molecular weight, dyed products have poor rubbing fastness, low tinting strength, low dye utilization rate, light fastness and heat ...

AI Technical Summary

Problems solved by technology

Traditional dyeing methods and theories based on small molecule synthetic dyes face many challenges, mainly reflected in: complex preparation process of synthetic dyes, large environmental pollution; high requirements for dyeing conditions (often requiring harsh pH value and high temperature), complex dyeing process, and water consumption. High energy consumption and difficult treatment of dyeing wastewater

Commonly used dyes have low molecular weight, dyed products have poor rubbing fastness, low tinting strength, low dye utilization rate, light resistance and heat resistance are also problematic to varying degrees, and fiber applicability is poor, etc.

The natural dyes that have emerged in recent years have been greatly limited in practical application due to incomplete chromatograms, environmental pollution using heavy metal mordants, and poor color fastness.