US 12,031,254 B2
Process of reducing malodors on fabrics
Mark Robert Sivik, Mason, OH (US); Sol Melissa Escobar, Mason, OH (US); Sarah Ann Delaney, Hebron, KY (US); Frank William Denome, Cincinnati, OH (US); and Mark William Hamersky, Hamilton, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Mar. 19, 2020, as Appl. No. 16/823,656.
Claims priority of provisional application 62/820,492, filed on Mar. 19, 2019.
Prior Publication US 2020/0299888 A1, Sep. 24, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 3/20 (2006.01); C11D 3/00 (2006.01); C11D 3/04 (2006.01); C11D 3/22 (2006.01); C11D 3/24 (2006.01); C11D 17/04 (2006.01); C11D 17/08 (2006.01); D06B 1/00 (2006.01); D06L 1/00 (2017.01)
CPC D06B 1/00 (2013.01) [C11D 3/0068 (2013.01); C11D 3/042 (2013.01); C11D 3/2086 (2013.01); C11D 3/222 (2013.01); C11D 17/043 (2013.01); C11D 17/08 (2013.01); D06L 1/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process of reducing malodors on fabrics, comprising the steps of:
a. combining fabrics with a wash liquor, wherein the fabrics comprise at least one source of malodor and wherein the wash liquor comprises a detergent composition and a concentrated acid delivery source in the form of a fibrous water-soluble unit dose, wherein the water soluble unit dose comprises from about 60% to about 80% by weight of the water soluble unit dose of citric acid coated with a citrate;
b. washing the fabrics in the wash liquor using an automatic wash operation, a manual wash operation, or a mixture thereof; and
c. separating the fabrics and the wash liquor from one another,
wherein the detergent composition and the concentrated acid delivery source are separate compositions.