公开(公告)号：US3689211A

公开(公告)日：1972-09-05

申请号：US3689211D

申请日：1970-03-05

Applicant: DOW CHEMICAL CO

Inventor： GIAMPALMI JOHN J JR ,  TELEGDY ISTVAN K ,  WIRTH MANFRED

IPC: D06F43/00 ,  D06L1/04 ,  D06L1/08 ,  D06L1/22 ,  D06L1/00

CPC classification number: D06L1/04 ,  D06F43/007 ,  D06L1/08 ,  D06L1/22

Abstract: AN IMPROVED METHOD FOR DRY CLEANING FABRICS, E.G., COTTON, COTTON-SYNTHETIC BLENDS, RAYON, NYLON, WOOL, WORSTED, ETC, WHCIH COMPRISES A THREE-STEP PROCESS: (A) CONTACTING THE FABRIC WITH A DRY CLEANING SOLVENT CONTAINING FROM 0.005 TO 25 VOLUME PERCENT OF H2O AND 0.01 TO 5 VOLUME PERCENT OF A DETERGENT FOR FROM ONE TO 20 MINUTES; AND THEN, IN ANY ORDER, (B) CONTACTING THE FABRIC WITH A DRY CLEANING SOLVENT CONTAINING 0.01 TO 15 VOLUME PERCENT OF A DETERGENT FOR FROM ONE TO 20 MINUTES; AND (C) CONTACTING THE FABRIC WITH A DRY CLEANING SOLVENT CONTAINING 0.01 TO 5 VOLUME PERCENT OF A DETERGENT FOR FROM ONE TO 20 MINUTES.