# US 5,704,991 A · Washing method and composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,704,991 A - Document ID: US5704991A - Status: Granted - Kind: A - Application number: 08/513,890 - Filed: 1995-11-13 - Granted: 1998-01-06 - Earliest claimed: 1993-02-24 - Assignees: Ing. Thor Marcus Kjemiske AS - Inventors: Thor Marcus - Web page: https://patentgrep.com/patent/US5704991A ## CPC - C11D 3/225: {etherified, e.g. CMC} - C11D 2111/14: Hard surfaces - C11D 2111/16: Metals - C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL ## Abstract It is disclosed a process for cleaning vehicles, especially cars, with an alkaline washing composition, preferably comprising one or more surfactants, where the washing composition is sprayed onto the vehicle with one or more nozzles or foam generators and where the alkaline washing composition in connection with the spraying onto the vehicle is combined with an aqueous solution of a cellulose derivative forming a semi-stable composition with congeals and absorbs/adsorbs the dirt particles removing them from the surface when the composition is rinsed off. It is preferred to add fibers in the rinsing water when hosing the composition off or in the cleaning solutions, and it is also preferred to perform the process at a pressure, e.g. 1-150 bars. The two components forming the cleaning composition are preferably combined by using an ejector system operated with water for obtaining the relevant concentrations of each component. The fiber dispersion may also be used separately with conventional washing compositions. ## Claims ### Claim 1 A process for washing a surface of a vehicle comprising: providing an alkaline solution of a washing composition having a pH in the range from about 7 to about 14; providing an aqueous solution of a cellulose derivative; adding a fiber material to at least one of said alkaline solution of said washing composition or said aqueous solution of said cellulose derivative; combining said alkaline solution of said washing composition with said aqueous solution of said cellulose derivative, at least one of which contains the fiber material, to form a combined solution containing said fiber material; and spraying said combined solution containing said fiber material onto the surface of the vehicle. ### Claim 2 A process for washing a surface of a vehicle comprising: providing an alkaline solution of an alkaline washing composition having a pH in the range from about 7 to about 14; providing an aqueous solution of a cellulose derivative; combining said alkaline solution of said washing composition with said aqueous solution of said cellulose derivative to form a combined solution; adding a fiber material to said combined solution; and spraying said combined solution containing said fiber material onto the surface of the vehicle. ### Claim 3 A process for washing a surface of a vehicle comprising: disposing a fiber material onto the surface of the vehicle; providing an alkaline solution of a washing composition having a pH in the range from about 7 to about 14; providing an aqueous solution of a cellulose derivative; combining said alkaline solution of said washing composition with said aqueous solution of said cellulose derivative to form a combined solution; and spraying said combined solution onto the surface of the vehicle having the fiber material disposed thereon. ### Claim 4 (depends on 1, 2) The process according to one of claims 1, 2, or 3, wherein said step of combining the alkaline solution of the washing composition with the aqueous solution of the cellulose derivative includes the aqueous solution of the cellulose derivative being combined with the alkaline solution of the washing composition with a concentration of the aqueous solution of the cellulose derivative being up to 5% by weight. ### Claim 5 (depends on 1, 2) The process according to one of claims 1, 2, or 3, wherein said step of combining the alkaline solution of the washing composition with the aqueous solution of the cellulose derivative includes the aqueous solution of the cellulose derivative and the alkaline solution of the washing composition being combined in a ration of about 1:3. ### Claim 6 (depends on 1, 2) The process according to one of claims 1, 2, or 3, wherein said step of combining the alkaline solution of the washing composition with the aqueous solution of the cellulose derivative includes the alkaline solution of the washing composition being added to the aqueous solution of the cellulose derivative by using a water injector and the alkaline solution of the washing composition being present in a mixing ratio with water of from about 1:10 to about 1:100. ### Claim 7 (depends on 1, 2) The process according to one of claims 1, 2, or 3, wherein said step of combining the alkaline solution of the washing composition with the aqueous solution of the cellulose derivative including passing the combined solution through a foam producing generator. ### Claim 8 (depends on 1, 2) The process according to one of claims 1 or 2, wherein said step of adding the fiber material includes the fiber material having a fiber length of from about 0.5 mm to about 5.0 mm. ### Claim 9 (depends on 1, 2) The process according to one of claims 1 or 2, wherein said step of adding the fiber material includes adding the fiber material such that the fiber material is present within the combined solution in a final concentration of up to about 40 g/l. ### Claim 10 (depends on 3) The process according to claim 3, wherein said step of disposing the fiber material onto the surface of the vehicle includes the fiber material having a fiber length from about 0.5 mm to about 5.0 mm. ### Claim 11 (depends on 3) The process according to claim 3, wherein said step of disposing the fiber material onto the surface of the vehicle includes disposing the fiber material onto the surface of the vehicle in an aqueous solution having a dispersion of the fiber material in a concentration of up to about 40 g/l. ### Claim 12 A precess for washing a surface of a vehicle comprising: providing an alkaline solution of a washing composition having a pH in the range from about 7 to about 14; combining said alkaline solution of said washing composition with said aqueous solution of said cellulose derivative to form a combined solution; spraying said combined solution onto the surface of the vehicle; and rinsing the surface of the vehicle with a rinse solution containing a fiber material. ### Claim 13 (depends on 1, 2, 3) The process according to one of claims 1, 2, 3, or 12 wherein said step of spraying the combined solution includes spraying the combined solution at a pressure of about 1-150 bar. ### Claim 14 (depends on 1, 2, 3) The process according to one of claims 1, 2, 3, or 12, wherein said step of combining the alkaline solution of washing composition with the aqueous solution of the cellulose derivative includes obtaining a mixture ratio between the the aqueous solution of the cellulose derivative and the alkaline solution of the washing composition from about 1:1 to about 1:5. ### Claim 15 (depends on 12) The process according to claim 12, wherein said step of rinsing includes the rinse solution being an aqueous solution having a dispersion of the fiber material at a concentration of up to about 40 g/l. ### Claim 16 (depends on 15) The process to claim 15, wherein said step of rinsing includes the rinsing solution having at least one surfactant. ### Claim 17 (depends on 12) The process to claim 12, wherein said step of rinsing includes the fiber material of the rinse solution having a fiber length of from about 0.5 mm to about 5.0 mm.