×

Extraneous dye or colorant scavenging system in laundry

  • US 4,380,453 A
  • Filed: 11/12/1980
  • Issued: 04/19/1983
  • Est. Priority Date: 02/06/1980
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of controlling undesirable random dye or colorant in a liquid bath containing sources of undesirable random dye or colorant and textile material of color other than the color of said undesirable dye or colorant, comprising placing in said bath a dye scavenger member comprising a cellulosic substrate material bearing a dye scavenger material, said dye scavenger material comprising a compound from the group consisting of:

  • a N-trisubstituted ammonium-2-hydroxy-3-halopropyl compound having the general formula ##STR3## or a salt of epoxy propyl ammonium having the general formula ##STR4## wherein X is a halogen radical, Y is chloride, bromide, sulfate or sulfonate, and the R'"'"'s are methyl, ethyl, butyl or benzyl groups or an hydroxyl substituted derivative thereof and then using said liquid bath for its intended purpose, wherein said undesirable random dye or colorant becomes associated with said dye scavenger member.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×