	US 11,680,225 B2
	Method for producing a washing agent with improved optical and rheological properties
Frank Meier, Duesseldorf (DE); Peter Schmiedel, Duesseldorf (DE); Daniel Thomas Piorkowski, Fairfield, CT (US); Thorsten Ott, Moenchengladbach (DE); Piotr Tkacz, Duesseldorf (DE); Stefan Hammelstein, Duesseldorf (DE); and Volker Blank, Leverkusen (DE)
Assigned to Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed by Henkel AG & Co. KGaA, Duesseldorf (DE)
Filed on Jul. 23, 2020, as Appl. No. 16/937,103.
Prior Publication US 2022/0025293 A1, Jan. 27, 2022
Int. Cl. C11D 11/00 (2006.01); C11D 17/04 (2006.01); C11D 1/83 (2006.01); C11D 1/04 (2006.01); C11D 3/04 (2006.01); C11D 1/22 (2006.01); C11D 1/29 (2006.01); C11D 3/20 (2006.01)

CPC C11D 1/22 (2013.01) [C11D 1/29 (2013.01); C11D 1/8305 (2013.01); C11D 3/046 (2013.01); C11D 3/2013 (2013.01); C11D 3/2079 (2013.01); C11D 11/0017 (2013.01); C11D 17/043 (2013.01)]

20 Claims

1. A method for producing an opacified liquid, surfactant-containing washing agent containing

i) 20 to 80 wt. % surfactant comprising anionic surfactant and non-ionic surfactant in a weight ratio from 1.4:1 to 1:1;

ii) 6 to 10 wt. % fatty acid;

iii) 0.3 to 8 wt. % of salt of a divalent cation;

iv) 8 to 35 wt. % solvent;

said method comprising the steps of:

a) providing a first flowable washing agent preparation containing a surfactant, fatty acid and solvent and having a turbidity below 60 NTU;

b) introducing the salt of a divalent cation into the washing agent preparation containing a surfactant, fatty acid and solvent so as to form a cloudy salt-containing composition having a turbidity above 60 NTU, wherein step b) does not include introducing an enzyme; and

c) mixing the salt-containing composition.