Global Patent Index - EP 0024340 A1

EP 0024340 A1 19810304 - Washing process.

Title (en)

Washing process.

Title (de)

Waschverfahren.

Title (fr)

Procédé de lavage.

Publication

EP 0024340 A1 19810304 (DE)

Application

EP 80104728 A 19800811

Priority

DE 2933579 A 19790818

Abstract (en)

[origin: US4288225A] A fluid, two-component washing agent consisting of two components A and B, of which component A is an aqueous dispersion of fatty acids and component B is an alkaline solution, wherein component A is a cold-stable aqueous dispersion consisting essentially of: (a) from 15% to 35% by weight of substantially unsaturated fatty acids, mainly oleic acid, (b) from 2% to 6% by weight of potassium hydroxide and from 2% to 6% by weight of triethanolamine, where the total amount is so selected that at least 50% by weight of the fatty acids are present as potassium and triethanolamine soaps, (c) from 4% to 10% by weight of an ethoxylated primary alcohol having 5 to 12 oxyethylene units, (d) from 4% to 10% by weight of sodium C10-14-alkylbenzenesulfonate, (e) from 0.05% to 1% by weight of at least one optical brightener, (f) from 5% to 15% by weight of at least one C1-3-alcohol, and (g) from 35% to 50% by weight of water, and wherein component B is an alkaline solution containing alkaline potassium compounds. The two components are combined in a ratio of A to B of 2:1 to 1:4 in the wash solution using water with a hardness degree of less than 10 DEG dH (German hardness), where the total content of wash-active components is from 2 to 8 gm/liter and the goods:liquor ratio is 1:4 to 1:8 and the washing process is carried out in a known manner.

Abstract (de)

Textilmaterial wird in einer Waschflotte unter Verwendung von weichem Wasser bei einem Flottenverhältnis von 1 : 4 bis 1 : 8 und einer Waschmittelkonzentration von 2 bis 8 g/l gewaschen, wobei dieses Waschmittel durch Vereinigen zweier flüssiger Konzentrate A und B im Gewichtsverhältnis 2 : 1 bis 1 : 4 erhalten wird. Konzentrat A besteht aus einer Dispersion seifenbildender Fettsäuren, die zu mindestens 50% als Kalium- und Triethanolaminseifen vorliegen und enthält ausserdem ethoxylierte Alkohole mit 8 bis 14 C-Atomen und 5 bis 12 Ethylenglykolethergruppen, Na-Alkylbenzolsulfonate, optische Aufheller und niedermolekulare Alkohole sowie Wasser. Das Konzentrat B enthält in wässriger Lösung Waschalkalien und Sequestrierungsmittel in Form der Tripolyphosphate, Hydroxyethandiphosphonate, Hydroxide, Silikate und gegebenenfalls Polyaminocarboxylate und Polyaminopolyphosphonate jeweils als Kalium- und Natriumverbindungen.

IPC 1-7

D06L 1/12; D06L 1/16

IPC 8 full level

C11D 3/20 (2006.01); C11D 11/00 (2006.01); D06L 1/12 (2006.01); D06L 1/16 (2006.01)

CPC (source: EP US)

C11D 3/2079 (2013.01 - EP US); D06L 1/12 (2013.01 - EP US); D06L 1/16 (2013.01 - EP US); C11D 2111/44 (2024.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE FR GB IT NL SE

DOCDB simple family (publication)

EP 0024340 A1 19810304; EP 0024340 B1 19830720; AT E4229 T1 19830815; DE 2933579 A1 19810326; DE 3064272 D1 19830825; DK 154842 B 19881227; DK 154842 C 19890516; DK 321680 A 19810219; US 4288225 A 19810908

DOCDB simple family (application)

EP 80104728 A 19800811; AT 80104728 T 19800811; DE 2933579 A 19790818; DE 3064272 T 19800811; DK 321680 A 19800725; US 17456080 A 19800804