	US 11,773,350 B2
	Method of washing textile articles
Russell Shawn Berman, Lithia, FL (US); Max Donald Harper, Knoxville, TN (US); Joel Monroe Madenwald, Columbus, OH (US); and Carl Henry Mattson, Florence, NJ (US)
Assigned to ECOLAB USA INC., St. Paul, MN (US)
Filed by Ecolab USA Inc., St. Paul, MN (US)
Filed on Apr. 1, 2021, as Appl. No. 17/220,193.
Application 17/220,193 is a continuation of application No. 16/280,249, filed on Feb. 20, 2019, granted, now 10,995,305.
Application 16/280,249 is a continuation of application No. 13/589,633, filed on Aug. 20, 2012, granted, now 10,253,281, issued on Apr. 8, 2019.
Prior Publication US 2021/0292683 A1, Sep. 23, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. C11D 3/395 (2006.01); C11D 3/39 (2006.01); C11D 11/00 (2006.01)

CPC C11D 3/3951 (2013.01) [C11D 3/3945 (2013.01); C11D 3/3953 (2013.01); C11D 3/3955 (2013.01); C11D 11/0064 (2013.01)]

22 Claims

1. A method of cleaning textile articles, comprising:

placing a plurality of textile articles into a washer having a plurality of sectors including at least a washing sector and a peroxycarboxylic acid sector, wherein the plurality of textile articles move through the washer in a first direction;

washing the plurality of textile articles in the washing sector with an alkaline detergent and a first composition comprising a bleaching agent and free of peroxycarboxylic acid;

treating the plurality of textile articles in the washing sector with the first composition at a temperature of 130° F. to 160° F., wherein the washing sector has a pH of 9.5 to 11.5;

adding to the peroxycarboxylic acid sector a second composition comprising less than 100 ppm of peroxycarboxylic acid; and

treating the plurality of textile articles in the peroxycarboxylic acid sector with the second composition at an acidic pH.