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Reusable zeolite water softener for clothes washing

  • US 4,066,394 A
  • Filed: 12/30/1974
  • Issued: 01/03/1978
  • Est. Priority Date: 12/30/1974
  • Status: Expired due to Term
First Claim
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1. A method of washing soiled textiles comprising the step of agitating said soiled textiles in an aqueous washing solution at a temperature in the range of 80°

  • F. to 200°

    F. in a washing machine in the presence of (A) a detersive proportion of a water-soluble nonionic or anionic surfactant and (B) a product comprising 20 to 300 parts by weight of particles of a water-insoluble, inorganic aluminosilicate having at least about one atom of aluminum for every three atoms of silicon, a cation selected from the group consisting of sodium, potassium, ammonium, lithium and hydrogen, and a particle size of less than ten microns incorporated in 100 parts by weight of a water-insoluble hydrophilic poly(urea/urethane) substrate having an open porous structure, said product being effective to remove calcium and magnesium ions from said washing solution.

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