EP 0990020 A1 20000405 - METHOD FOR WASHING CLOTHES, IN PARTICULAR WORKING CLOTHES
Title (en)
METHOD FOR WASHING CLOTHES, IN PARTICULAR WORKING CLOTHES
Title (de)
VERFAHREN ZUM WASCHEN VON WÄSCHE, INSBESONDERE VON BERUFSBEKLEIDUNG
Title (fr)
PROCEDE DE LAVAGE DU LINGE, EN PARTICULIER DE VETEMENTS DE TRAVAIL
Publication
Application
Priority
- DE 19726287 A 19970620
- EP 9803543 W 19980612
Abstract (en)
[origin: DE19726287A1] The invention relates to a method for washing clothes, in particular working clothes. The clothes are washed in a washing machine of the type commonly used in industrial laundries, using a combination of products comprising at least two components: (A) a washing alkali component containing (A1) an anionic surfactant and a water-soluble silicate, and/or (A2) an alkali hydroxide and (A3) complex-forming agents; and (B) a surfactant component preferably containing a nonionic surfactant. After washing, the wastewater is treated in a membrane filtering system. Unlike known agents, the inventive product combination comprising components A and B does not negatively affect wastewater treatment in the membrane filtration system. In particular, it does not block the membranes.
IPC 1-7
IPC 8 full level
C11D 1/83 (2006.01); C11D 3/02 (2006.01); C11D 3/08 (2006.01); C11D 3/12 (2006.01); C11D 3/36 (2006.01); C11D 11/00 (2006.01); C11D 1/06 (2006.01); C11D 1/12 (2006.01); C11D 1/14 (2006.01); C11D 1/29 (2006.01); C11D 1/72 (2006.01); C11D 1/722 (2006.01)
CPC (source: EP US)
C11D 1/83 (2013.01 - EP US); C11D 3/08 (2013.01 - EP US); C11D 3/364 (2013.01 - EP US); C11D 1/06 (2013.01 - EP US); C11D 1/12 (2013.01 - EP US); C11D 1/123 (2013.01 - EP US); C11D 1/126 (2013.01 - EP US); C11D 1/14 (2013.01 - EP US); C11D 1/29 (2013.01 - EP US); C11D 1/72 (2013.01 - EP US); C11D 1/722 (2013.01 - EP US); C11D 2111/12 (2024.01 - EP US); C11D 2111/48 (2024.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK FR GB IT LI NL SE
DOCDB simple family (publication)
US 6398820 B1 20020604; AT E222284 T1 20020815; BR 9810220 A 20000808; CA 2295015 A1 19981230; CA 2295015 C 20091201; DE 19726287 A1 19981224; DE 59805198 D1 20020919; DK 0990020 T3 20021104; EP 0990020 A1 20000405; EP 0990020 B1 20020814; NO 996307 D0 19991217; NO 996307 L 19991217; PL 187141 B1 20040531; PL 337508 A1 20000828; WO 9859025 A1 19981230
DOCDB simple family (application)
US 44625600 A 20000218; AT 98937476 T 19980612; BR 9810220 A 19980612; CA 2295015 A 19980612; DE 19726287 A 19970620; DE 59805198 T 19980612; DK 98937476 T 19980612; EP 9803543 W 19980612; EP 98937476 A 19980612; NO 996307 A 19991217; PL 33750898 A 19980612