Thiophene azo dyes and laundry care compositions containing the same

摘要

This application relates to thiophene azo dyes for use as hueing agents, laundry care compositions comprising such thiophene azo dyes, processes for making such thiophene azo dyes, and laundry care compositions and methods of using the same. The thiophene azo dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. These thiophene azo dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. The thiophene azo dyes are also generally stable to bleaching agents used in laundry care compositions.

主权项

1. A thiophene azo dye containing a formally charged moiety of Formula (VIII):
A-N═N—X  Formula VIII wherein the A moiety is selected from the group consisting of A Moieties Nos. 1-118:No.A 1 2 3 4 5 6 7 8 9101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118  and wherein X is selected from the group consisting of X Moieties Nos. 1-31:No.Z = O-Tosylate or Halogen 1 2 3 4 5 6 7 8 910111213141516171819202122232425262728293031