US PATENT SUBCLASS 8 / 424
.~.~.~ Phenols (natural oxidation dye)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

404  DF  DYEING INVOLVING ANIMAL-DERIVED NATURAL FIBER MATERIAL (OTHER THAN SOLELY WOOL OR SILK), E.G., LEATHER, FUR, HAIR, FEATHERS, ETC., COMPOSITION, PROCESS, OR PRODUCT {2}
405  DF  .~ Hair dyeing {7}
406  DF  .~.~ Oxidation dye {7}
424.~.~.~ Phenols (natural oxidation dye)

DEFINITION

Classification: 8/424

Phenols (natural oxidation dye):

(under subclass 406) Subject matter wherein a phenolic dye is used.

(1) Note. Natural oxidation dyes such as hematin (phenodin), pyrogallol (1, 2, 3 - trihydroxybenzene), etc., are included.