Metal complex dyes are used in people’s life everywhere, it bring colors to us, while environmental metal complex dyes ensure our safety. Some index of the metal complex dyes must meet national stanardard as there is specific production standard for it to make sure non-toxic harmless, absolutely not enough to harm the human body. Let us check some index briefly.
First: Tpyes and content of metal complex dyes. Different kinds of metal complex dyes can affect its light fastness, The performance of the metal complex dyes light fastness and acidity of the different are not the same; we should pay more attention on the types and content when we chose it.
Second: Tinting strength of metal complex dyes. People can tell light fastness by tinting strength.
The concentration of metal complex dyes, color acceptance are rely on color tinting strength to show, good color color, need achromatized amount less, so the cost also is very low.
Third: Chromatic aberration of metal complex dyes. Chormatic aberration is also an important index for judge the quality of metal complex dyes. It reflect metal complex dyes’ stability.
Just control these three index on the metal complex solvent dyes would be good for a green hand.