| abstract |
The invention provides a dye scavenging substrate comprising an absorbent substrate, comprising: (A) a dye scavenging compound selected from the following compounds: (i) N-trisubstituted ammonium-2-hydroxy-3-halopropyl compound having the general formula (I), wherein R 3 , R 4 , R 5 are each independently methyl, ethyl, butyl or benzyl or an hydroxyl substituted derivative thereof, X is a halogen atom, and Y is chloride, bromide, sulfate or sulfonate; and (ii) a salt of epoxy propyl ammonium having the general formula (II), wherein R 6 , R 7 , R 8 and Y' have the same meaning as R 3 , R 4 , R 5 and Y, respectively, as defined above; or a combination thereof; and (B) a dye transfer inhibitor. The dye scavenging substrate optionally further comprises a colouring agent. |