Concentrated non-phosphate detergent paste compositions

Reference Number: N 04-07

Inventors: Kaufmann, Edward J.; van Buskirk, Gregory; Iliff, Robert J.; Yang, Chihae

Owner: NISTAC

USPTO Link: 4743394

Invention Summary

In one embodiment, the invention provides novel low-temperature-effective non-phosphate detergent paste compositions comprising: A concentrated non-phosphate, detergent paste composition which is rapidly soluble in cold water comprising, by weight: (a) about 10-50% of at least one nonionic surfactant; (b) about 5-70% of at least one water insoluble non-phosphate builder; (c) about 0-70% of at lest one water soluble non-phosphate builder; wherein the ratio of (b+c): a is greater than or equal to about 1.0; and wherein the ratio of b:a is less than about 2.0. The novel detergent paste compositions provide good removal of oily and particulate soils from both natural and synthetic fibers and yet surprisingly are rapidly soluble/dispersible in cold water. Furthermore, adjuncts such as nonionic, anionic, cationic, and amphoteric surfactants; phase stabilizers; fluorescent whitening agents; anti-redeposition agents; corrosion-inhibiting agents; dyes; pigments; bleaches, fabric softeners; enzymes; and fragrances may be added to the novel paste detergents of this invention. The invention also provides novel delivery means in the form of unit dosage size water soluble polyvinyl alcohol film packets to deliver the novel detergent paste compositions into wash water.