US PATENT SUBCLASS 8 / 913
AMPHOTERIC EMULSIFIERS FOR DYEING

Current as of: June, 1999
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8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

913AMPHOTERIC EMULSIFIERS FOR DYEING {2}
914  DF  .~> Amino carboxylic acids
915  DF  .~> Amino sulfonic acids

DEFINITION

Classification: 8/913

AMPHOTERIC EMULSIFIERS FOR DYEING:

Amphoteric emulsifiers for dyeing, i.e., emulsifiers having both acid and basic properties.