Hoping someone can help... Or tell me what we're trying to do is impossible!
We airbrush veg tan leather using Fiebings Spirit (Alcohol) based dye. The colours are built up in different gradients and blends. We then finish with a UV top coat.
One thing we struggle with is that because the dyes are translucent in nature - when the leather begins to patina and darken, the beautiful pastel shades are lost. For bright and dark colours this isn't so much of a problem - but it does spoil the pastel shades.
Is there a better dye we could he using to maintain those pastel shades for longer? Should we swap to an oil based? Or should we just move away from offering pastel colours?
Example below of a pastel piece.