Detergent compositions

Patent metadata

Field	Value
Publication number	US-10266791-B2
Application number	US-201615345531-A
Country	US
Kind code	B2
Filing date	Nov 8, 2016
Priority date	Nov 13, 2015
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

Detergent compositions with improved sudsing profile, which are particularly suitable for hand-washing fabrics and dishware.

First claim

What is claimed is:

1. A detergent composition comprising one or more surfactants, wherein said detergent composition is characterized by a sudsing profile defined by:
a) an Initial Wash Suds Volume of from 45 cm to 47 cm, wherein said Initial Wash Suds Volume is the suds volume by height measured during a first stage of a wash cycle in a laundering process; and
b) a Suds Mileage of from 40 cm to 45 cm, wherein said Suds Mileage is the suds volume by height measured during a second, subsequent stage of the wash cycle in the laundering process; and
c) a Rinse Suds Reduction Rate of from 100%/min to 110%/min, wherein said Rinse Suds Reduction Rate is the rate of suds volume reduction from a first stage of a rinse cycle in the laundering process to a second, subsequent stage of the rinse cycle in the laundering process,
wherein the Initial Wash Suds Volume, the Suds Mileage, and the Rinse Suds Reduction Rate are measured according to the Suds Profile Test described herein,
wherein said detergent composition is further characterized by:
(1) a First Order Surface Tension, which is measured in a first aqueous solution of said detergent composition having a first total detergent concentration of 5000 ppm; and
(2) a Second Order Surface Tension, which is measured in a second aqueous solution of said detergent composition having a second total detergent concentration of 333 ppm,

wherein the difference between the First Order Surface Tension and the Second Order Surface Tension is no less than 15 mN/, wherein the First Order Surface Tension ranges from 20 mN/m to 28 mN/m, wherein the Second Order Surface Tension ranges from 42 mN/m to 72 mN/m, wherein the Rinse Suds Reduction Rate is 100%/min, wherein said detergent composition is free of linear or branched alkoxylated alkyl sulfate surfactants, wherein said detergent composition is a granular detergent composition that further comprises: (a) from 3% to 25%, of a water-soluble alkali metal carbonate, by total weight of said granular detergent composition; (b) from 30% to 80%, of a water-soluble alkali metal sulfate, by total weight of said granular detergent composition; and (c) from 30% to 80%, of a water-soluble alkali metal chloride, by total weight of said granular detergent composition, wherein said one or more surfactants consist of a branched, unalkoxylated C 6 -C 14 alkyl sulfate present in an amount ranging from 5% to 30%, by weight of the detergent composition and a linear or branched C 4 -C 11 alkyl or aryl alkoxylated alcohol having a weight average degree of alkoxylation ranging from 1 to 10, and present in an amount ranging from 0.5% to 5%, by weight of the detergent composition.

2. A method of treating a soiled material, comprising the steps of:
a) providing a detergent composition according to claim 1 ;
b) contacting the detergent composition with at least a portion of the soiled material; and
c) rinsing the soiled material.

3. The method of claim 2 , wherein steps (b) and (c) are both conducted by hand, and wherein the soiled material is soiled fabric.

Assignees

• Procter & Gamble

Inventors

• Tang Ming
• Chen Qing
• Liu Wenting
• Li Shuo

Classifications

• C11D1/22

  derived from aromatic compounds · CPC title

• C11D1/146 Primary

  Sulfuric acid esters · CPC title

• C11D11/0017

  Chemistry & Metallurgy · mapped topic

• C11D11/0023

  Chemistry & Metallurgy · mapped topic

• C11D10/04

  based on mixtures of surface-active non-soap compounds and soap · CPC title