Surfactant blends in unit dose packages for improved mildness
The present disclosure provides a unit dose product comprising a pouch formed from a water-soluble film material; and a detergent composition disposed within the pouch that comprises about 5 to about 20 wt % water, about 35 to about 65 wt % of at least two surfactants, and a non-aqueous solvent. The at least two surfactants comprise methyl ester ethoxylate (MEE) and a linear alkylbenzene sulfonate (LAS), and at least one of an alkyl ether sulfate (AES) and a non-ionic alcohol ethoxylate (AE). The composition can further comprise additional components, such as a base, a performance polymer, an anti-redeposition agent, an enzyme, a bleaching agent, a bleach activator, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, or a combination thereof. The detergent composition comprises surfactants with improved mildness and solvents with lower allergic components.
1 . A unit dose product comprising:
a pouch formed from a water-soluble film material;
a detergent composition comprising
(a) about 5 to about 20 weight percent (wt %) water,
(b) about 35 to about 65 wt % of a surfactant system comprising:
a non-ionic alcohol ethoxylate (AE), a methyl ester ethoxylate (MEE), and an alkyl ether sulfate (AES), and
(c) a non-aqueous solvent comprising polyethylene glycol, propylene glycol, glycerin, and ethanol;
wherein monoethanolamine is present in an amount of not more than 2% by weight of the composition
wherein the composition does not comprise a linear alkylbenzene sulfonate (LAS),
wherein a % swelling is not more than about 32% in a 24 hr test; and
wherein the detergent composition is disposed within the pouch.
2 . The unit dose product of claim 1 , wherein the MEE comprises the formula R 1 —C(═O)O-(EO) n —CH 3 , wherein R 1 is a C 8 -C 24 alkyl, EO is polyethoxylate, and n is an integer of moles from 5 to 30.
3 . The unit dose product of claim 2 , wherein R 1 is C 17 alkyl and n is 10.
4 . The unit dose product of claim 1 , wherein the AE comprises the formula R 1 -(EO) n —OH, wherein R 1 is a C 12 -C 18 alkyl group, EO is ethoxylate, and n is an integer of moles from 1 to 15.
5 . The unit dose product of claim 1 , wherein the detergent composition comprises at least 4 wt % of MEE.
6 . The unit dose product of claim 1 , wherein the detergent composition comprises 1.4 wt % monoethanolamine.
7 . The unit dose product of claim 1 , wherein the detergent composition has a pH of about 6.5 to about 12.
8 . The unit dose product of claim 1 , wherein the detergent composition has a pH of about 7 to about 8.
9 . The unit dose product of claim 1 , wherein the polyethylene glycol, propylene glycol, and glycerin are present in a weight ratio of about 1:0.5:1.
10 . The unit dose product of claim 1 , wherein the detergent composition further comprises at least one additive selected from an anti-redeposition agent, a performance polymer, a defoamer, an enzyme, a bleaching agent, a bleach activator, a chelating agent, a chlorine scavenger, an optical brightener, a bitterant, a corrosion inhibitor, and any combination thereof.
11 . The unit dose product of claim 1 , wherein the detergent composition comprises about 10 to about 15 wt % water;
about 40 to about 55 wt % of the surfactant system; and;
at least one additive selected from a defoamer, a chelating agent, an optical brightener, a bitterant, a corrosion inhibitor, and any combination thereof
wherein the surfactant system further comprises a coco fatty acid.
12 . The unit dose product of claim 1 , wherein the water-soluble film material comprises polyvinyl alcohol (PVOH) or polyvinyl acetate (PVA).