Windex

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Windex's flagship product
Windex's flagship product

Windex is a trademark for a glass and light-duty hard surface cleaner made since 1992 by S. C. Johnson & Son and popular in the United States and Canada since the mid-20th century.

The popularity of Windex in the US has led to the generic use of the trademark for any similar product, including those marketed under different brands, or simply labelled, e.g., Window Cleaner.

Windex-like products typically contain detergents, ammonia, fragrance to moderate the odor of ammonia, and some form of dye. The original modern Windex was colored a light, transparent shade of blue, but varieties are marketed today in a variety of colors and fragrances, touting additives such as vinegar or lemon juice.

[edit] Product history

When Windex was first invented in 1933 by Harry R. Drackett, it was essentially 100% solvent, and as a flammable product, it had to be sold in metal cans. When modern surfactants were introduced after World War II, the product was reformulated.

The Sam Wise patent #3,463,735 lists several example formulae, one of which is 4.0% isopropyl alcohol (a highly volatile solvent) 1% ethylene glycol monobutyl ether (a less volatile solvent), 0.1% sodium laurel sulfate (a surfactant), 0.01 tetrasodium pyrophosphate (a water softener), 0.05% of 28% ammonia (added more for smell than for cleaning ability), 1% of a dye solution, and 0.01% perfume. This formula was not only significantly less expensive to manufacture, but allowed the product to be packaged in glass bottles and dispensed with a plastic sprayer.

The product was recently reformulated [1] to more environmentally-desirable solvents. Reducing solvent levels paradoxically results in cleaner glass because the glass cleaner does not evaporate as quickly, and the consumer must polish the glass longer.

[edit] Trivia

  • The blue color has inspired bartenders to name similarly tinted mixed drinks after it. Blue Curaçao is a common ingredient; for instance, a "Windex shot" typically contains vodka, triple sec, and blue Curaçao for color. When the soda Pepsi Blue debuted, it was also compared to Windex.

[edit] External link

Sources: "Philip W. Drackett: Earned profits, plaudits" By Barry M. Horstman, Cincinnati Post, May 21, 1999.