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Friday, December 21, 2007

Liquid Dishwash Detergent Update

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Ingredients
% Wt
15.00
Cocodiethanolamine
1.00
N-dodecyl pyrollidone (Surfadone LP-300)
1.00
Sodium Chloride
2.50
Sodium hydroxymethyl glycinate, aqueous (Integra 44)
0.15
Dye
q.s.
Fragrance
q.s.
To pH 7
Water.
To 100

Formula Instructions
  1. Charge the water into the vessel.
  2. Add the SLES, stir with mechanical stirrer until dissolved.
  3. Add coconut diethanolamine and Surfadone LP-300, stir until all dissolved.
  4. Add Integra 44, dye fragrance, stir all until homogenous.
  5. Add sodium Chloride
  6. Adjust pH to 6.8 ~ 7.0 with citric acid (or caustic soda).

    Sodium lauryl ether sulphonate
    Emulsifier, surfactant (shampoo), textile auxiliary
    Coconut diethanolamine
    Foam booster, foaming agent, wetting agent
    Sodium Chloride
    Filler, thickener
    Sodium hydroxymethyl glycinate (Integra 44)
    Broad spectrum biocide
    N-dodecyl pyrrolidone
    (Surfadone LP-300)
    improves the wetting performance of the aqueous solution, aids the penetration and solubilization of greasy soils and in conjunction with the other surfactants increases the viscosity of the product, removing the need fo7.0r electrolyte or thickeners

    In the late 1980’s, I used only three major ingredients in making dishwashing liquid - SLES, cocodiethanolamine, and sodium chloride. But the quality is not as good as the other commercial ones. Others add nonyl phenol as wetting agent or soda ash (this is slimy) as co-cleaners to improve the formulation. The above formulation uses surfactant Surfadone LP-300 to improve the cleaning ability of the product and Integra 44 as preservative.
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