초록 ▼

A system for removing extraneous, random free-flowing dyes from laundry washing applications which comprises a novel unitary dosing laundry article that can freely circulate among items being laundered. The laundry article further comprises a dye absorber and a dye transfer inhibitor which are intro

A system for removing extraneous, random free-flowing dyes from laundry washing applications which comprises a novel unitary dosing laundry article that can freely circulate among items being laundered. The laundry article further comprises a dye absorber and a dye transfer inhibitor which are introduced into a wash liquor via a support matrix. The dye absorber maintains a relational association with the support matrix in the wash liquor, whereas the dye transfer inhibitor is delivered up from the support matrix to the wash liquor and may be evenly distributed throughout the wash liquor. The laundry article of the present invention provides a method for preventing the redeposition of extraneous dyes onto other wash items, while simultaneously providing an indicator system for the manifestation of such scavenging process.

대표청구항 ▼

A wash additive article effective for inhibiting transfer of extraneous dyes to items in a wash liquor and for indicating said inhibition, the article comprising a support matrix for introduction into a wash liquor; a dye absorber, fixably associated with the support matrix and adapted for imparting

A wash additive article effective for inhibiting transfer of extraneous dyes to items in a wash liquor and for indicating said inhibition, the article comprising a support matrix for introduction into a wash liquor; a dye absorber, fixably associated with the support matrix and adapted for imparting a detectable color change to the matrix; and a dye transfer inhibitor releasably associated with the support matrix and adapted for preventing undesirable discoloration of items; wherein the support matrix is selected from the group consisting of those that have absorptive capacity, those that contain reactive groups, and mixtures thereof, further wherein the reactive groups comprise hydroxyl, acetyl and carboxyl moieties, derivatized species thereof and mixtures thereof; the dye absorber is selected from the group consisting of quaternary ammonium-hydroxy-haloalkyl compounds, salts of epoxyalkyl ammonium compounds, polyquaternary ammonium compounds, polyamphoterics, quaternized starches, proteins, chitin, chitosan, choline chlorides, polyvinyl amine, polyethylene imine, and mixtures thereof; the dye transfer inhibitor is selected from the group consisting of polyvinyl pyrrolidone, polyvinyl alcohol, polyvinyl imidazole, polyamine-N-oxides, cationic starches, magnesium aluminate, hydrotalcite, proteins, hydrolyzed proteins, polyethylene imines, polyvinyl oxazolidone, enzymes, oxidants, cationic surfactants, amphoteric surfactants, propylene oxide reaction products, polyamino acids, block co-polymers of alkylene oxides, polyamines, polyamides, methyl cellulose, carboxyalkyl, celluloses, guar gum, natural gums, alginic acid, polycarboxylic acids, cyclodextrins, and mixtures thereof; wherein the combination of support matrix and dye absorber results in at least a 10% increase in a DD75% reduction in a DD