STD series liquid colorants are a new type of colored macromolecular polymers formed by introducing chromophores into the main chain or side chain of macromolecules through certain chemical reactions. They have many characteristics such as high safety and will not be absorbed by the human body. They are environmentally friendly products that save energy, reduce emissions and reduce consumption.
Since their successful development, STD series liquid colorants have been used as a functional colored macromolecular compound. They not only have the light absorption properties of small molecule colorants, but also have the stability of polymers. This combination gives the product dual functions: the large molecular size, high strength, easy film formation, solvent resistance, migration resistance, heat resistance and processability of macromolecules and the strong light absorption and colorfulness of organic colorants. Caihua Technology has made rapid progress in the research of this series of products, and it has now become a new field of functional polymers and coloring chemistry.
In addition to the general functions of small molecule colorants, STD series liquid colorants also have many special advantages. For example, when the molecular weight reaches above 3000. it will not be absorbed by the human digestive system and will be excreted from the body through the intestines, causing no harm to the human body and is safer.
