Powder detergent composition and method of making

专利名称：Powder detergent composition and method

of making

发明人：STEVEN J BROUWER,MICHAEL J. WINT申请号：AU2077097申请日：19970310公开号：AU716957B2公开日：20000309

摘要：A powdered laundry detergent is provided with (a) a powder laundry detergentbase that includes an inorganic carrier and a surfactant and (b) post-added acidulant anddiscrete whitening agent particles to provide a detergent having improved cool watersolubility with bulk color deterioration caused by whitening agents being minimized. Thedetergent includes from about 5% to about 80% of an inorganic carrier, from about 1%to about 90% of a detergent surfactant, from about 0.1% up to about 15% of an

acidulant and from about 0.1% up to about 30% of the discrete whitening agent particles.The acidulant is selected from the group of acids that in an acid form are soluble in waterin an amount not greater than about 8%, preferably not greater than about 0.7% byweight at 25 DEG C. and in a salt form are soluble in water at least in an amount of about15% by weight at 25 DEG C. The whitening agent particles include a whitening agent and asurfactant. The whitening agent surfactant can consist of those anionics, nonionics,zwitterionics, ampholytics, cationics, and mixtures thereof that are solids in a temperaturerange of from about 32 DEG F. (0 DEG C.) to about 180 DEG F. (82 DEG C.). In a morepreferred form, the whitening agent particles consist of a whitening agent, a surfactant,preferably an anionic surfactant, and water.

申请人：AMWAY CORPORATION

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