US 2022/0025302 A1Published application

Delayed Onset Fluid Gels For Use In Unit Dose Laundry Detergents Containing Colloidal Particles

AssigneeHenkel AG & Co. KGaA

InventorsDaniel Thomas Piorkowski, Frank Meier, Peter Schmiedel

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Abstract

Disclosed is a unit dose laundry detergent product containing an in-vitro, delayed onset fluid gel detergent composition and a water soluble film pouch for enclosing the detergent composition. The composition includes a linear alkylbenzene sulfonate and/or an alcohol ethoxy sulfate having a C8-C20 backbone that is ethoxylated with from about 1 to about 10 moles of ethylene oxide, and a non-ionic surfactant comprising an alkoxylated alcohol, in an amount from 20 to 70 wt %, water in an amount from about 10 to about 30 wt %, free fatty acids in an amount from about 2 to 12 wt %, a magnesium cation in an amount of from 0.15 to 1 wt %, and colloidal particles such as an encapsulated fragrance. The composition is opacified and structured yet free of a structuring agent or an opacifying agent. Also disclosed is a method of making such product.

Claims20

Dependent claims

A method of preparing a unit dose detergent product comprising the steps of:

A. mixing a surfactant system, a fatty acid or a salt thereof, water, and at least one addictive ingredient to form a first mixture, wherein the first mixture does not include a magnesium salt;
wherein the surfactant system is present in an amount of about 20 to about 70 weight percent based on a total weight of said unit dose detergent product and comprises:
(1) at least one anionic surfactant comprising an alcohol ethoxy sulfate having a C8-C20 backbone that is ethoxylated with from about 1 to about 10 moles of ethylene oxide or linear alkylbenzene sulfonate;
(2) at least one non-ionic surfactant comprising an alkoxylated alcohol;
and
wherein water is present in a total amount of from about 10 to about 30 weight percent based on a total weight of said detergent product;
wherein the fatty acid or a salt thereof is present in an amount of from about 2 to about 12 weight percent based on a total weight of said detergent product;
B. mixing the first mixture with a magnesium salt to form a second mixture from 0.1 second to 5 hours prior to a step of depositing the second mixture to a pouch space formed by a water-soluble film;
wherein the magnesium salt comprising a magnesium cation component and a counterion component, wherein the magnesium cation component is present in an amount of from about 0.15 to about 1.0 weight percent based on a total weight of said detergent product;
wherein a weight ratio between the fatty acid and the magnesium salt is from 2:1 to 30:1;
C. depositing the second mixture into the pouch formed by a water-soluble film;
and
D. sealing the film to enclose the second mixture to form the unit dose detergent product.

10 more elements

A unit dose detergent product comprising:

A. a container formed from a water-soluble or water-dispersible film material;
B. a detergent composition enclosed in the container, said composition comprising:
a) a surfactant system present in an amount of about 20 to about 70 weight percent based on a total weight of said detergent composition and comprising;
(1) at least one anionic surfactant comprising an alcohol ethoxy sulfate having a C8-C20 backbone that is ethoxylated with from about 1 to about 10 moles of ethylene oxide or linear alkylbenzene sulfonate;
(2) at least one non-ionic surfactant comprising an alkoxylated alcohol;
and
b) water present in a total amount of from about 10 to about 30 weight percent based on a total weight of said detergent composition;
and
c) a fatty acid or a salt thereof present in an amount of from about 2 to about 12 weight percent based on a total weight of said detergent composition;
wherein the salt of the fatty acid is capable of being neutralized in the composition to release the fatty acid;
d) a magnesium salt comprising a magnesium cation component and a counterion component, wherein the magnesium cation component is present in an amount of from about 0.15 to about 1.0 weight percent based on a total weight of said detergent composition;
and
e) colloidal particles present in an amount of about 0.02 to 5.0 weight percent based on the total weight of said detergent composition;
wherein a weight ratio between the fatty acid and the magnesium salt is from 2:1 to 30:1;
and
wherein the colloidal particles are homogenously dispersed in said detergent composition and remaining its homogenous status over a shelf life of between 1 and 30 months at room temperature.

13 more elements

A fluid-gel detergent composition comprising:

a) a surfactant system present in an amount of about 20 to about 70 weight percent based on a total weight of said detergent composition and comprising;
(1) at least one anionic surfactant comprising an alcohol ethoxy sulfate having a C8-C20 backbone that is ethoxylated with from about 1 to about 10 moles of ethylene oxide or linear alkylbenzene sulfonate;
(2) at least one non-ionic surfactant comprising an alkoxylated alcohol;
and
b) water present in a total amount of from about 10 to about 30 weight percent based on a total weight of said detergent composition;
and
c) a fatty acid or a salt thereof present in an amount of from about 2 to about 12 weight percent based on a total weight of said detergent composition;
wherein the salt of the fatty acid is capable of being neutralized in the composition to release the fatty acid;
d) a magnesium salt comprising a magnesium cation component and a counterion component, wherein the magnesium cation component is present in an amount of from about 0.15 to about 1.0 weight percent based on a total weight of said detergent composition;
and
wherein a weight ratio between the fatty acid and the magnesium salt is from 2:1 to 30:1;
and
wherein said detergent composition has a yield point value greater than 0.5 Pa at 20° C., a turbidity value greater than 1000 NTU, and a viscosity at 20° C. greater than 70 Pa·s and said viscosity capable of being reduced by more than 75% under shear;
wherein said detergent composition is in the form of a gel and acts as a plastic before the yield point is reached and acts as a liquid after the yield point is reached.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/947,208Filed 23 Jul 2020
Published: 27 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

C11D 3/505
Protected perfumes: encapsulated or adsorbed on a carrier, e.g. zeolite or clay
C11D 17/043
Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions: liquid or…
C11D 1/29
Sulfonic acids or sulfuric acid esters; Salts thereof: sulfates of polyoxyalkylene ethers
C11D 1/83
Non-ionic compounds: mixtures of non-ionic with anionic compounds

Family

US 11,566,209 B2Related patent
US 2022/0025302 A1This patent

From the US filing history. Foreign family members aren’t listed.

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