The textile printing and dyeing industry is one of the important areas for the application of defoamers. In the printing and dyeing process, dyes, auxiliaries and water are easily mixed to form a large amount of foam, which not only affects the dyeing uniformity, but also may cause surface defects of the fabric and increase the difficulty of subsequent treatment.
The application of defoamers in textile printing and dyeing needs to solve several key problems: first, compatibility with dyes and auxiliaries to avoid chemical reactions that affect color and fastness; second, high temperature resistance to ensure that it can still play a role under high temperature dyeing conditions; third, easy cleaning to avoid residues that affect the feel of the fabric.
With the increasingly stringent environmental regulations, the development of environmentally friendly defoamers has become an industry trend. Bio-based defoamers, such as natural surfactants produced by microbial fermentation, not only have good defoaming effects, but also reduce pollution to the environment. In addition, the application of microencapsulation technology, which encapsulates defoaming active ingredients to improve their release efficiency under specific conditions, is also a hot topic in current research.