Slow made is the basic requisite for natural ecological colours of quality.
Often textiles need at least one premordanting bath for dyeing with natural dyes. This requires plenty of time : rapid processing results in colours that are less fast. Tinctoria uses aluminium potassium sulfate or aluminium acetate and gallnuts. These products are accepted by GOTS (Global organic textile standard) and by the dutch waterboards in the effluent.
For screenprinting or painting Tinctoria uses printing pastes, containing plantextracts and aluminium acetate.
Everything is produced in small editions. Max length of printing is 6 m.