IP Library › Granted Patent US 12,723,221
Granted Patent B2
US 12,723,221 · App. 17/645,525 · Granted Sep 1, 2026

Soil removal on cotton via treatment in the rinse step for enhanced cleaning in the subsequent wash

Inventors: Peter J. McGrane (Saint Paul, MN); Kaustav Ghosh (Saint Paul, MN); Sukhwan Soontravanich (Saint Paul, MN); Paige Mary Owens-Polta (Saint Paul, MN); Ashish Dhawan (Saint Paul, MN); Yiqing Chen (Saint Paul, MN); Carter M. Silvernail (Saint Paul, MN); Lee Monsrud (Saint Paul, MN)
Assignee: ECOLAB USA INC.
C11D3/30C11D1/835C11D3/0036C11D3/373C11D1/62C11D1/721C11D1/75C11D2111/12
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Quick Facts
Patent No.
US 12,723,221
App. No.
17/645,525
Granted
Sep 1, 2026
Kind
B2
Abstract

The disclosure relates to compositions particularly suited for removing soils from textiles, in particular the removal of oily food soils, oily cosmetic soils, and industrial soils from textiles containing cotton, particularly those comprising one or more of surfactants, and cationic amines, or silicone compounds. Methods of making and using such compounds are also provided.

Claims (25)

1 . A method of removing soil from a textile comprising:

washing a textile during a wash cycle, wherein the wash cycle comprises a pre-soak phase, a wash phase, a rinsing phase, a finishing phase, and an extraction phase;

applying a finishing composition to a surface of the textile during the finishing phase; the finishing composition comprising:

a branched cationic amine surfactant comprising N, N-bis(3-aminopropyl) dodecylamine; N1,N1,N3-tris (3-aminopropyl)-N3-dodecylpropane-1,3-diamine; N1,N1-bis(3-aminopropyl)-N3-dodecylpropane-1,3-diamine; N1-(3-aminopropyl)-N3-dodecylpropane-1,3-diamine; N-dodecylpropane-1,3-diamine; isotridecyloxypropyl-1,3-diaminopropane; N1-(3-(tridecyl-(branched)-alkyloxy) propyl) propane-1,3-diamine; N1,N1,N3-tris (3-aminopropyl)-N3-octadecyl-1,3-propanediamine; N1,N1,N3-tris (3-aminopropyl)-N3-dodecylpropane-1,3-diamine; N-(3-aminopropyl)-N-octadecyl-N-octadecyl propane-1,3-diamine; or a combination thereof;

one or more additional surfactants, wherein the one or more additional surfactants comprises a nonionic surfactant, semi-polar nonionic surfactant, a cationic surfactant, or a combination thereof; and

a deposition aid comprising a quaternary ammonium compound, a silicone compound, an amine epoxide adduct, or a combination thereof; and

wherein the finishing composition is applied in a concentration to deposit 10-200 ppm of the branched cationic amine surfactant to the surface of the textile, the deposited branched cationic amine surfactant remains on the surface of the textile after drying, and the deposited branched cationic amine provides improved removal of soil in a subsequent wash; and

wherein the soil is removed from the textile.

2 . The method of claim 1 , wherein the method removes cosmetic and oily soils from the textile.

3 . The method of claim 1 , wherein the textile is a textile from the restaurant industry or hospitality industry.

4 . The method of claim 3 , wherein the textile is a tablecloth, napkin, uniform, apron, washcloth, dishcloth, mop, bedsheet, pillowcase, bedspread, towel, or robe.

5 . The method of claim 1 , wherein the nonionic surfactant comprises a fatty alcohol polyglycol ether, an alcohol ethoxylate, an alcohol alkoxylate, an EO/PO block copolymer, or a combination thereof.

6 . The method of claim 1 , wherein the finishing composition further comprises an alkalinity source.

7 . The method of claim 6 , wherein the alkalinity source is an alkali metal carbonate, an alkali metal hydroxide, a metal silicate, a metal borate, or a combination thereof.

8 . The method of claim 1 , wherein the quaternary ammonium compound comprises N,N-diethoxylated-N-coco-N-methylammonium chloride, di(hydrogenated) tallow dimethyl ammonium methyl sulfate ester quaternary ammonium, C12-C16 alkyl dimethyl benzyl ammonium chloride, decyl dimethyl octyl ammonium chloride, didecyl dimethyl ammonium chloride, dimethyl dioctyl ammonium chloride, N,N′-di(alkylcarboxyethyl)-N-hydroxyethyl-N-methylammonium methyl sulfate, or a combination thereof.

9 . The method of claim 1 , wherein the finishing composition comprises between about 30 wt. % to about 55 wt. % of the branched cationic amine surfactant, the one or more additional surfactants are present in an amount of between about 10 wt. % to about 70 wt. % of the one or more additional surfactants, between about 1 wt. % to about 75 wt. % of the deposition aid.

10 . The method of claim 1 , wherein the finishing composition is diluted to form a use solution, and wherein the branched cationic amine surfactant is present in the use solution in an amount of between about 50 ppm to about 200 ppm.

11 . The method of claim 1 , wherein the nonionic surfactant comprises a fatty alcohol polyglycol ether, an alcohol ethoxylate, an alcohol alkoxylate, an EO/PO block copolymer, or a combination thereof; and wherein the silicone compound is a compound according to the formula:

wherein R 1 and R 2 are each a C 1 -C 10 alkyl, alkenyl radical, phenyl, substituted alkyl, or substituted phenyl group; and wherein x is a number from 50 to 300,000; wherein the substituted alkyl or substituted phenyl are substituted with a halogen, amino group, hydroxyl group, quaternary ammonium group, polyalkoxy group, carboxyl group, or nitro group.

12 . The method of claim 1 , wherein the textile is treated with between about 50 ppm to about 1000 ppm of the finishing composition.

13 . The method of claim 1 , wherein the finishing composition is a solid.

14 . The method of claim 13 , wherein the solid is in the form of a powder, a flake, a granule, a pellet, a tablet, a lozenge, a puck, a briquette, a brick, a solid block, or a unit dose.

15 . The method of claim 1 , wherein the finishing composition further comprises an enzyme.

16 . The method of claim 1 , wherein the silicone compound is a compound according to the formula:

wherein R 1 and R 2 are each a C1-C10 alkyl, alkenyl radical, phenyl, substituted alkyl, or substituted phenyl group; and wherein x is a number from 50 to 300,000; and wherein the substituted alkyl or substituted phenyl are substituted with a halogen, amino group, hydroxyl group, quaternary ammonium group, polyalkoxy group, carboxyl group, or nitro group.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2022
From: MCGRANE, PETER J.; GHOSH, KAUSTAV; SOONTRAVANICH, SUKHWAN; OWENS, PAIGE MARY; DHAWAN, ASHISH; CHEN, YIQING; SILVERNAIL, CARTER M.; MONSRUD, LEE
To: ECOLAB USA INC.
Reel/Frame 058550/0659 →
Continuity (2)
Provisional Application 63199395 · Dec 23, 2020
Related Publication 20220195341A1 · Jun 23, 2022
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