Water based metal complex dyes’ application field is very extensive, and also used in leathe extremeluy, let us see what kind of application in leather for the water based metal complex dyes?
Common dyes for leather:
There is usually two kinds of leather dyes, water based and no water based, while people use water based more, especially water based metal complex dyes. 70% use acid dyes.
Dyes for leather use only:
Many leather dyes are borrowed from the dyes in the textile industry, however, it is not the same as the leather fiber and textile fibers, its charge is relatively strong, especially for the affinity of dye has a great difference, and leather and very thick, when invaded staining is not the same. In the leather dyeing time brings great difficulty, will cause uneven dyeing and dyeing color difference. Then the quality of the product will be a serious shortage. So the special dye of leather also came into being.
Dyeing process:
Exclusive leather dyes are very different, various dyes, you can almost see its shadow, especially water color dye, especially in the majority. When dyeing the same ion type of several dyes by color and dye request to participate in the. Dyed chrome leather is a process of physics and chemistry.
The first is the appearance of tie dye printing dyeing dyeing, the dye requirements demand color fast, strong hiding power. The length of dyeing time, the amount of dye, the temperature of the concave and convex, need to go through a number of repeated experiments to get a good effect. It is sure to prevent the removal of the dye in the groove. In the vessel, turning to be punctual. Generally it only needs one hour to complete.