US Patent Issued to Archroma (Switzerland) on Nov. 18 for "Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials" (French, German Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,432, issued on Nov. 18, was assigned to Archroma (Switzerland) GmbH (Pratteln, Switzerland).

"Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials" was invented by Hubert Christnacher (Dietwiller, France), Fanny Ehret (Reiningue, France), Michael Nicollet (Village-Neuf, France), Jean-Christophe Graciet (Village-Neuf, France) and Georg Roentgen (Freiburg im Breisgau, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the field of isomeric mixture of reactive dyes that are suitable for the dyeing or printing of nitrogen-containing or hydroxy-group-containing fibre ma...