公开(公告)号：US3840340A

公开(公告)日：1974-10-08

申请号：US24021172

申请日：1972-03-31

Applicant: MC KNIGHT E

Inventor： MC KNIGHT E

IPC: D06L1/08 ,  D06L1/04

CPC classification number: D06L1/08

Abstract: A method for enhancing the removal of water-soluble soil during dry cleaning, which contemplates the application of a preconditioning treatment to the goods to be cleaned before the dry cleaning thereof, but in the same equipment in which the dry cleaning treatment will be performed. Preconditioning consists of treating the goods with a mixture of water and detergent which has been substantially vaporized prior to introduction into the dry cleaning equipment. A predetermined water moisture level is established inside the dry cleaning equipment through introduction therein of the water and detergent mixture and maintained throughout the preconditioning treatment and the dry cleaning treatment following. Concentrated detergent in amounts based upon the weight of the goods to be cleaned is introduced into the dry cleaning equipment during the preconditioning treatment of the goods to insure the availability of sufficient detergent for the preconditioning treatment in those instances in which a pre-existing moisture level in the dry cleaning equipment would not require the addition of sufficient water and detergent mixture to provide the needed detergent by that means. Special treatment agents may be introduced into the dry cleaning equipment to achieve some desired effect and include the watersoluble type in which case they are introduced with the preconditioning treatment, or the solvent-soluble type, introduced with the solvent dry cleaning treatment.