Reactive leveling agent and its preparation method and application

Abstract

The invention discloses a reactive dye leveler which comprises, in weight percent, 20.0%-40.0% of multi-active dye levelers, 20.0%-40.0% of water, 5.0%-10.0% of dihydric phosphate, 5.0%-10.0% of perlate salt and 0%-50.0% of inorganic salt. The total content of the components is 100%. The invention further discloses a preparation method and an application of the reactive dye leveler. The reactive dye leveler is mainly used for cellulose fibers and protein fibers, dyeing uniformity is obviously improved by competitive dyeing of the reactive dye leveler and dyes, occupation of specific sites for dyeing through fiber reaction and the buffer function for dye bath pH (potential of hydrogen) values, good uniform dyeing effects can be achieved particularly for light color and sensitive color dyeing, the reactive dye leveler is applied to dyeing of loose fibers and cone yarns, the color difference between an inner layer and an outer layer can be obviously improved, and overall uniform dyeing effects are improved.

Description

technical field [0001] The invention belongs to the technical field of fiber or textile dyeing and finishing, and specifically relates to a reactive leveling agent, and also relates to a preparation method and application of the reactive leveling agent. Background technique [0002] In the dyeing process of textiles, there are strict requirements for uniform dyeing. In the dyeing process, due to the nature of the textile material itself, the performance of the dye, and the unscientific dyeing process, etc., the dyeing is uneven and there are defects. Generally, color correction, color change or even stripping and re-dyeing are used to make up for this phenomenon. , but this will lead to low production efficiency and a decline in product quality. [0003] In the dyeing process of textiles, it is often necessary to apply a leveling agent to improve the leveling performance, so as to obtain a good uniform dyeing effect. At present, the leveling agents involved in textile dyei...

AI Technical Summary

Problems solved by technology

Using surfactants and their compounding as textile leveling agents, the affinity between fiber-friendly leveling agents and fibers is often small, and the leveling agents on the dyed fibers in the initial stage of dyeing will be replaced by dyes as the dyeing progresses. These types of leveling agents cannot satisfy the leveling and dyeing of package yarns, and it is also difficult to meet the leveling and dyeing of sensitive colors such as emerald blue and light coffee in actual production and processing.

However, if the affinity between the dye-friendly leveling agent and the dye is too low, the leveling effect will be poor. Although the affinity between the leveling agent and the dye is high, the leveling effect will be better, but the utilization rate of the dye will be significantly reduced.

In practice, only leveling agents with moderate affinity to dyes can be used, so the effects of dye-friendly leveling agents and fiber-friendly leveling agents are similar, and ideal application results cannot be obtained.

Images