Detailed explanation of reactive dyeing
Cloth dyeing method there are two main kinds of paint is the traditional printing and dyeing, the other is the dyeing of reactive dyeing and coating. Reactive dye is in printing and dyeing process does not add formaldehyde and azo, does not contain substances harmful to the human body, and does not fade does not shrink when washing. Reactive dye and pigment dyeing differs from reactive dyeing feel slippery soft, normal version is reactive dyeing of Mercerized cotton fabric looks like, from the perspective of both positive and negative effect of dye were good and coating printing and dyeing fabric feels stiff, looks a bit like ink-picture effect.
Reactive dye is in the process of dyeing and printing, dye activated genes combined with the fiber molecules, making dyes and fibers to form a whole. Fabric dust excellent performance, high purity, high color fastness. Of course costs are also much higher than the pigment dyeing and printing. Is printing with dye for activity dye, General selection high stick degrees seaweed acid sodium do paste flow (it degeneration small, infiltration pulp volume small, can better to keep spent type of as), most used double activity base m type reactive dyes (the dye has better of solid color rate and upgrade force, while can reduce SOAP wash Shi dip color prescription/9 l a ' reactive dyes x urea 112 x anti-dye salt s 10 material amount water amount alkali agent 15,130). Reactive printing than the pigment printing has many advantages, such as permeability, excellent color fastness, soft to the touch, but there are some printing processes cumbersome, process a long and difficult process, and so on.
Reactive dyeing can ensure environmental protection is harmless to people, color and texture of the fabric was also good, will not have a hard and a soft feel.