Dyeing method for improving color fastness to light of osier

Abstract

The invention belongs to the technical field of osier dyeing, in particular to a dyeing method for improving color fastness to light of osier. The method specifically comprises the following steps of (1) osier pretreatment and (2) osier dyeing. The permeation of a coloring agent is effectively improved, the degree of aggregation of dye molecules is higher, crosslinking binding between the dye molecules and the ingredients of osier is prompted, the binding force is high, leachability resistance is good, the electronic cloud density of azo group hydrogen atoms is reduced, the shielding effect on azo groups is achieved, the photooxidation resistance stability of the azo groups in the structure of the dye molecules is improved, and finally, the color fastness to light of a dye is improved; and furthermore, osier is evenly dyed and has good color fastness to water, the difference between the color of the interior and the color of the exterior of osier is small, osier is evenly dyed without stains, and is bright and glossy, and the quality of the wickerwork made of osier is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of bark willow dyeing, in particular to a dyeing method for enhancing the color fastness of bark willow to light. Background technique [0002] Willow is an important raw material for willow weaving. It grows rapidly, has strong adaptability, good flexibility, and smooth hand feeling. It is often used to weave baskets, but the color of willow is monotonous, which can no longer meet the needs of people who have high requirements for quality of life. Although there is Qi Liu dyeing technology at present, its color fixation effect is poor, and it is very easy to fade after dyeing, and the light fastness is poor, which reduces its visual sense and use quality; Greatly improve the use value and economic benefits of willow products. Contents of the invention [0003] In view of the problems referred to above, the present invention aims to provide a dyeing method that enhances the color fastness of bark willow t...

AI Technical Summary

Problems solved by technology

[0002] Willow is an important raw material for willow weaving. It grows rapidly, has strong adaptability, good flexibility, and smooth handle. It is often used to weave baskets, but the color of willow is monotonous, which can no longer meet the needs of people who have high requirements for quality of life. Although there is Qi Liu dyeing technology at present, its color fixation effect is poor, it is very easy to fade after dyeing, and the light resistance is poor, which reduces its visual sense and use quality; Greatly improve the use value and economic benefits of willow products