Leucodye (such as leucoindigo) as dispersing aid
AssigneeSedo Engineering SA
InventorsDavid CRETTENAND, Grégoire CHAPPOT, Ludovic CHAPPOT, Herbert GÜBELI
Life of this patent
Estimating the term…
Abstract
An electrolytic dye reduction method comprises preparing a catholyte by dispersing a dye in a leucodye comprising electrolyte. In a preferred method the leucodye like leucoindigo is the sole dispersing aid.
Claims20
An electrolytic dye reduction method comprising preparing a catholyte by dispersing a dye in a leucodye comprising electrolyte, said preparing of said catholyte being performed in a main vessel and/or in a first vessel.
An electrolytic indigo reduction method comprising preparing a catholyte by dispersing indigo in a leucoindigo comprising electrolyte, said preparing of said catholyte being performed in a main vessel and/or in a first vessel.
Dependencies are inferred from the claim text.