Method for improving dyeing performance of reactive dye on elm timbers

Abstract

The invention relates to a method for improving the dyeing performance of a reactive dye on elm timbers. Natural starch is taken as a raw material and is used for modifying the elm timbers, and prepared nanoscale zeolite powder microparticles with relatively small sizes and relatively large specific surface areas are added into a soaking solution with a super-strong permeation function, can be dispersed into the soaking solution by virtue of generated surface energy efficiency and can be adequately combined with elm timber matrixes, so that reaction activities of cellulose and hemicellulose inthe elm timbers as well as hydroxide radicals in the lignin with the reactive dye can be improved, and the stability of the dyed elm timbers is improved; by carrying out pressure cooking, the tenacity, heat stability and dimensional stability of elm materials are remarkably improved; and by carrying out dyeing, the problems of insufficient dyeing depth and color fastness caused when the elms aredyed by virtue of the reactive dye are solved.

Description

technical field [0001] The invention relates to the technical field of wood dyeing, in particular to a method for improving the dyeing performance of reactive dyes on elm wood. Background technique [0002] Elm is Ulmaceae, Ulmus genus, mainly produces temperate, deciduous trees, tall trees, all over the north, especially in the Yellow River Basin, can be seen everywhere. [0003] Elm is an excellent furniture material and interior decoration material. It is mainly used for furniture, cabinets, building interior decoration, joinery products, doors, floors and panelling. [0004] Reactive dyes have developed rapidly in recent years. They are low in price, complete in color spectrum, wide in source, good in permeability and chemical stability, and relatively simple in dyeing process. At present, they have achieved rapid development in the textile printing and dyeing industry. As their advantages are widely recognized, the use of reactive dyes for wood staining has gradually b...

AI Technical Summary

Problems solved by technology

However, it has high requirements for the selectivity of wood. Due to the high moisture content of elm wood, the stability of wood is poor. After drying, the stability is improved, but the performance in the dyeing process is still not guaranteed. The existing surface treatment The effect is average, and the problem of loose fiber structure and relatively poor dyeing property of elm wood cannot be changed

Especially during the dyeing process, it affects the dyeing of reactive dyes, and the color fixation rate is less than 55%. After dyeing, it is affected by sunlight, temperature, moisture, etc., the durability is poor, and obvious color difference changes are prone to occur, causing great adverse effects