EP 0726978 A1 19960821 - METHOD OF DOSING DETERGENT PRODUCT
Title (en)
METHOD OF DOSING DETERGENT PRODUCT
Title (de)
VERFAHREN ZUM DOSIEREN EINES WASCHMITTELPRODUKTES
Title (fr)
PROCEDE DE DOSAGE D'UN PRODUIT DETERSIF
Publication
Application
Priority
- EP 94931546 A 19941024
- EP 9403493 W 19941024
- EP 93203065 A 19931102
Abstract (en)
[origin: WO9512704A1] A method is provided of dosing detergent product into a washing solution present in an industrial washing machine, comprising measuring, from a washing solution containing water and detergent material, a property which is proportional to the detergent concentration of said washing solution, and adding detergent product to the washing solution if the value of the measured property corresponds to a detergent concentration below a preset threshold value, whereby the measured property is the electroconductivity of the washing solution, said property being measured using a measuring cell including one or more electrodes (3, 4) characterised by the steps of: (a) dosing, during filling of the washing machine with clean water, a sufficient amount of detergent product so as to attain present threshold value, followed by mixing of said dosed tetergent product with the water; (b) measuring the conductivity of the thus obtained wash liquor, after a mixing time of less than 2 minutes; and (c) storing said measured conductivity and the detergent concentration value corresponding thereto, as the preset threshold values, in the memory (3) of a controller (1), which is attached to the measuring cell and controls the dosing of detergent product as a function of the conductivity measured.
IPC 1-7
IPC 8 full level
D06F 34/22 (2020.01)
CPC (source: EP US)
D06F 34/22 (2020.02 - EP US); D06F 2103/22 (2020.02 - EP US); D06F 2105/42 (2020.02 - EP US); D06F 2105/58 (2020.02 - EP US); D06F 2105/60 (2020.02 - EP US)
Citation (search report)
See references of WO 9512704A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9512704 A1 19950511; AU 679281 B2 19970626; AU 8059994 A 19950523; BR 9407967 A 19961203; CA 2172723 A1 19950511; CA 2172723 C 19971125; DE 69413246 D1 19981015; DE 69413246 T2 19990218; EP 0726978 A1 19960821; EP 0726978 B1 19980909; ES 2123161 T3 19990101; FI 108866 B 20020415; FI 961837 A0 19960430; FI 961837 A 19960430; ZA 948468 B 19960429
DOCDB simple family (application)
EP 9403493 W 19941024; AU 8059994 A 19941024; BR 9407967 A 19941024; CA 2172723 A 19941024; DE 69413246 T 19941024; EP 94931546 A 19941024; ES 94931546 T 19941024; FI 961837 A 19960430; ZA 948468 A 19941027