Method of stabilizing dye solutions and stabilized dye...

Details Method of stabilizing dye solutions and stabilized dye... Method of stabilizing dye solutions and stabilized dye...

C - Chemistry, Metallurgy

09

B

C09B 67/00 (2006.01) C09B 67/26 (2006.01) C09B 67/44 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2563189

Stabilized metachromatic dyes, especially at application concentrations, comprising metachromatic dyes dissolved in one or more non-aqueous solvents, as well as metachromatic dyes dissolved in pH stabilized aqueous solutions. Also, various combinations of treatments are disclosed for stabilizing metachromatic dyes.

L'invention concerne des colorants métachromatiques stabilisés, surtout à des concentrations d'applications, comprenant des colorants métachromatiques dissous dans un ou plusieurs solvants non aqueux, ainsi que des colorants métachromatiques dissous dans des solutions aqueuses au pH stabilisé. On présente également diverses combinaisons de traitements pour stabiliser des colorants métachromatiques.

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