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Color changing liquid cleaning composition comprising red dyes

  • US 6,331,515 B1
  • Filed: 08/06/2001
  • Issued: 12/18/2001
  • Est. Priority Date: 08/06/2001
  • Status: Expired due to Fees
First Claim
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1. A liquid cleaning composition comprising approximately by weight:

  • (a) 2% to 40% of at least one surfactant selected from the group consisting of anionic surfactants, ethoxylated nonionic surfactants, amine oxide surfactants, alkyl poly glucoside surfactants and zwitterionic surfactants and mixtures thereof;

    (b) 0.0001% to 0.001% of and D&

    C Acid Dye No. 33;

    FD&

    C Red No. 40 dye (c) 0.04% to 0.12% of sodium bisulfite (d) 1% to 15% by weight of a solubilizing agent selected from the group consisting of a C1-C4 alkanol and/or a water soluble salt of C1-C3 substituted benzene sulfonate hydrotropes and mixtures thereof (e) the balance being water, wherein the composition does not contain a preservative selected from the group consisting of Dowicil 75 which has the structure of;

    and DMDM hydantoin having the structure of;

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