发明名称 |
Method of dry cleaning articles using densified carbon dioxide |
摘要 |
Disclosed is a method for the removal of stains from articles, especially fabric, using densified carbon dioxide. The invention is concerned with a method of dry cleaning an article comprising the successive steps of (a) contacting the article with a fluid dry cleaning composition containing densified carbon dioxide at a temperature between -20 and 60° C. and a pressure between 1 and 100 MPa, so as to allow stains to dissolve and/or to disperse into the fluid dry cleaning composition and (b) separating the article and the fluid dry cleaning composition; wherein the fluid dry cleaning composition comprises an ionic surfactant in a concentration between 0.01 and 15% by weight of the carbon dioxide and wherein during step a) at least 10%, preferably at least 30%, of said ionic surfactant is present in an undissolved solid form.
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申请公布号 |
US2005120491(A1) |
申请公布日期 |
2005.06.09 |
申请号 |
US20050502504 |
申请日期 |
2005.02.01 |
申请人 |
WOERLEE GEERT F.;ROOSMALEN MAAIKE V.;BREIJER ALEX;VAN GANSWIJK JAN W.;WICHHART MAARTEN |
发明人 |
WOERLEE GEERT F.;ROOSMALEN MAAIKE V.;BREIJER ALEX;VAN GANSWIJK JAN W.;WICHHART MAARTEN |
分类号 |
C11D11/00;D06L1/00;(IPC1-7):D06F1/00 |
主分类号 |
C11D11/00 |
代理机构 |
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地址 |
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