Stearate-based dryer-added fabric modifier sheet
AssigneeCreative Products Resource Associates, Ltd.
InventorGeorge W. Kellett
Life of this patent
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Abstract
A fabric modifier sheet for in-dryer use is provided which comprises water, an organic solvent, and an amount of an alkali metal stearate effective to dimensionally stabilize the sheet, having uniformly distributed in said sheet an effective amount of one or more fabric modifying agents.
Claims21
A fabric modifier comprising a gelled sheet consisting essentially of about 15-30% water, about 40-60% of a water-miscible organic solvent selected from the group consisting of a glycol ether, a pyrrolidinone, an alkanol and mixtures thereof, and an effective gel-forming amount of an alkali-metal stearate, having uniformly distributed thereon an effective amount of a fabric softening agent selected from the group consisting of a cationic quaternary ammonium salt, an imidazolinium salt, a stearyl amine salt, a tertiary phosphine oxide, a tertiary amine oxide, a nonionic surfactant, an ethoxylated alcohol sulfate, a sodium alkyl sulfate, an alkyl sulfonate, a sodium alkyl benzene sulfonate, a sodium alkyl glyceryl ether sulfonate, a potassium alkyl glyceryl ether sulfonate, an amphoteric tertiary ammonium compound, a zwitterionic quaternary ammonium compound and mixtures thereof;
- so that an insignificant residue of said sheet remains in a rotary hot air dryer following the drying cycle.
A fabric modifier comprising a gelled sheet formed by a process comprising:
- (a) forming a uniform liquid dispersion consisting essentially of an effective amount of a fabric softening agent selected from the group consisting of a cationic quaternary ammonium salt, an imidazolinium salt, a stearyl amine salt, a tertiary phosphine oxide, a tertiary amine oxide, a nonionic surfactant, an ethoxylated alcohol sulfate, a sodium alkyl sulfate, an alkyl sulfonate, a sodium alkyl benzene sulfonate, a sodium alkyl glyceryl ether sulfonate, a potassium alkyl glycerol ether sulfonate, an amphoteric tertiary ammonium compound, a zwitterionic quaternary ammonium compound and mixtures thereof, and about 7-20% of an alkali metal stearate in about 40-60% of a water-miscible organic solvent selected from the group consisting of a glycol ether, a pyrrolidinone, an alkanol and mixtures thereof, and about 15-30% water;
- (b) forming said mixture into a dimensionally-stable gelled sheet;
- so that an insignificant residue of the sheet remains in a rotary hot air dryer following the drying cycle.
Dependencies are inferred from the claim text.