US 12,630,784 B2 · Formula design for a solid laundry fabric softener

Abstract

Solid laundry fabric softening compositions for laundry applications of use are disclosed. In particular, solid laundry fabric softening compositions combining quaternary dialkyl actives with low iodine values and silicone provide softness without causing any significant yellowing or loss of water absorption or wicking to the treated linen. The solid laundry fabric softening compositions can be provided as a multi-use block having uniform dispensing rates and without block sloughing. Beneficially, the combination of processing aids for solidification comprising one or more of (A) polyethylene glycol and an acidulant, (B) a surfactant and an acidulant, or (C) polyethylene glycol, a surfactant and an acidulant, are combined with the quaternary ammonium compounds and silicone to provide the stable solid composition.

Claims19

Dependent claims

A multi-use solid laundry fabric softening composition comprising:

from about 5 wt-% to about 15 wt-% of an ester quaternary ammonium compound with an iodine value less than or equal to 15;
an organosilicone comprising a polyalkyl silicone, an aminosilicone, a siloxane, a polydimethyl siloxane, an ethoxylated organosilicone, a propoxylated organosilicone, an ethoxylated/propoxylated organosilicone, or mixtures thereof, wherein the ratio of the ester quaternary ammonium compound to the organosilicone is from less than 3:1 to about 1.8:1;
and
a processing aid for solidification comprising a combination of polyethylene glycol and an acidulent;
wherein the solid laundry fabric softening composition is a non-weeping solid at a temperature of up to 120° F. for 72 hours as measured by less than about 10 gram loss per 100 grams.

2 more elements

A multi-use solid laundry fabric softening composition comprising:

from about 5 wt-% to about 15 wt-% of an ester quaternary ammonium compound with an iodine value less than or equal to 15;
an organosilicone comprising a polyalkyl silicone, an aminosilicone, a siloxane, a polydimethyl siloxane, an ethoxylated organosilicone, a propoxylated organosilicone, an ethoxylated/propoxylated organosilicone, or mixtures thereof, wherein the ratio of the ester quaternary ammonium compound to the organosilicone is from less than 3:1 to about 1.8:1;
and
a processing aid for solidification comprising a nonionic alcohol ethoxylate surfactant having an HLB between about 10-15 and/or a cationic surfactant, a stabilizer comprising a long chain fatty acid or a derivative of a long chain fatty acid, and one or more of polyethylene glycol, an acidulant, and a non-hygroscopic water soluble salt,
wherein the composition is a non-weeping solid at a temperature of up to 120° F. for 72 hours as measured by less than about 10 gram loss per 100 grams.

2 more elements

Dependencies are inferred from the claim text.

Formula design for a solid laundry fabric softener

Life of this patent

Formula design for a solid laundry fabric softener

Life of this patent

Abstract

Claims19