Laundry treatment compositions

  • US 8,268,016 B2
  • Filed: 09/09/2005
  • Issued: 09/18/2012
  • Est. Priority Date: 09/23/2004
  • Status: Active Grant
First Claim
Patent Images

1. A laundry method of simultaneously washing and whitening a polyester-containing textile garment, the method comprising:

  • (a) treating under normal domestic wash conditions the textile garment with an aqueous solution comprising;

    (i) from 1 ppb to 5 ppm of a hydrophobic dye, which is an azo dye, wherein the hydrophobic dye, when deposited onto the textile garment, provides a blue or violet shade to the garment that imparts a shading whiteness benefit thereto, and(ii) from 0.2 g/L to 3 g/L of a detersive surfactant, which is a mixture of at least one anionic surfactant and at least one nonionic surfactant, wherein the nonionic surfactant is present in an amount greater than 10 wt % of the total surfactant; and

    (b) rinsing and drying the textile garment,wherein (a) provides a simultaneous washing and shading whiteness benefit to the polyester-containing textile garment.

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