Direktfärben
Direktfärben, also known as direct dyeing, is a process used to color various materials, most commonly textiles and hair. In this method, the dye molecules possess a chemical affinity for the substrate, allowing them to bind directly to the fibers or strands without the need for a mordant. Mordants are substances that help fix dyes to fibers, but direct dyes are designed to adhere without this additional chemical intermediary.
The mechanism of direct dyeing involves the formation of physical bonds, such as van der Waals forces
In textile applications, direct dyes are widely used for cellulosic fibers like cotton, linen, and rayon due
For hair coloring, direct dyes are also employed. These dyes deposit color onto the outer layer of