Drycleaning method using dipropylene glycol n-propyl ether

Details Drycleaning method using dipropylene glycol n-propyl ether Drycleaning method using dipropylene glycol n-propyl ether

D - Textiles, Paper

06

L

D06L 1/02 (2006.01)

Patent

CA 2534789

A drycleaning method is disclosed. In the method, a composition that comprises dipropylene glycol n-propyl ether (DPnP) and is essentially free of siloxanes or polysulfonic acids is used. The composition contains at least. About 80 wt.% DPnP and up to about 15 wt.% of water. The method enables superior stain removal while avoiding excessive fabric shrinkage or soil redeposition.

La présente invention concerne un procédé de nettoyage à sec selon lequel on utilise une composition qui comprend du dipropylène glycol n-propyl éther (DPnP), et qui est sensiblement dépourvue de siloxanes ou d'acides polysulfoniques. La composition de l'invention comprend au moins 80 % en poids environ de DPnP et jusqu'à 15 % en poids environ d'eau. Le procédé permet d'enlever les taches avec une meilleure efficacité, tout en évitant un rétrécissement excessif des tissus ou que les salissures ne se redéposent sur le tissu.

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