Machine washing process: detergent paste and automatic dispenser
First Claim
1. A machine washing process with process-controlled dosing of water and detergent, comprising:
- a. a paste-form, phosphate-reduced or phosphate-free detergent composition which is substantially free from water, organic solvent selected from the group consisting of low molecular weight, low-boiling alcohols and ether alcohols and hydrotropic compound, comprising a phase which is liquid at a temperature below 10°
C. and containing a nonionic surfactant selected from the group consisting of alkoxylated alcohols and ethoxylated alkylphenols, and a solid phase dispersed therein wherein the particles have a mean particle size of about 5 to about 40 μ
m and less than about 5% of the particles have a particle size of greater than about 80 μ
m, the solid phase comprising a washing alkali, sequestering compound and other detergent constituents; and
,b. a process controlled system for dosing said detergent composition into the liquor container of a washing machine, said system removing said detergent composition from a storage container and delivering it to a mixer wherein it is diluted with water to at least such an extent that the formation of a gel phase is avoided, feeding the aqueous detergent mixture to said washing machine, and diluting the aqueous detergent mixture with more water to a concentration of 0.5 to 10 g/l.
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Accused Products
Abstract
A machine washing process with process-controlled dosing of water and detergent using a paste-form, phosphate-reduced or phosphate-free detergent which is substantially free from water, organic solvents and hydrotropic compounds. The paste comprises a phase liquid at a temperature below 10° C. and contains a nonionic surfactant selected from the group of polyglycolether compounds and of a solid phase dispersed therein in which the particles have a mean particle size of from 5 to 40 μm and less than 5% of the particles have a particle size larger than 80 μm, the solid phase comprising washing alkalis, sequestering compounds and other detergent constituents and, optionally, anionic surfactants. Under the control of a process-control computer, the paste is taken from a storage container, delivered to a mixer and diluted therein with water to at least such an extent that the formation of a gel phase is avoided. The aqueous mixture is fed to a washing machine and, unless this has already happened in the mixer, is diluted with more water to a concentration of 0.5 to 10 g/l, after which the washing process is started.
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Citations
21 Claims
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1. A machine washing process with process-controlled dosing of water and detergent, comprising:
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a. a paste-form, phosphate-reduced or phosphate-free detergent composition which is substantially free from water, organic solvent selected from the group consisting of low molecular weight, low-boiling alcohols and ether alcohols and hydrotropic compound, comprising a phase which is liquid at a temperature below 10°
C. and containing a nonionic surfactant selected from the group consisting of alkoxylated alcohols and ethoxylated alkylphenols, and a solid phase dispersed therein wherein the particles have a mean particle size of about 5 to about 40 μ
m and less than about 5% of the particles have a particle size of greater than about 80 μ
m, the solid phase comprising a washing alkali, sequestering compound and other detergent constituents; and
,b. a process controlled system for dosing said detergent composition into the liquor container of a washing machine, said system removing said detergent composition from a storage container and delivering it to a mixer wherein it is diluted with water to at least such an extent that the formation of a gel phase is avoided, feeding the aqueous detergent mixture to said washing machine, and diluting the aqueous detergent mixture with more water to a concentration of 0.5 to 10 g/l. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification