公开(公告)号：US20050120491A1

公开(公告)日：2005-06-09

申请号：US10502504

申请日：2002-12-04

Applicant: Geert Woerlee ,  Maaike Roosmalen ,  Alex Breijer ,  Jan Van Ganswijk ,  Maarten Wichhart

Inventor： Geert Woerlee ,  Maaike Roosmalen ,  Alex Breijer ,  Jan Van Ganswijk ,  Maarten Wichhart

IPC: C11D11/00 ,  D06L1/00 ,  D06F1/00

CPC classification number: D06L1/00

Abstract: 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.

Abstract translation: 公开了一种使用致密二氧化碳从制品，特别是织物中除去污渍的方法。 本发明涉及一种干式清洁制品的方法，包括以下连续步骤：（a）在-20至60℃之间的温度下将物品与含有致密二氧化碳的流体干洗组合物接触，并且压力介于1和 100MPa，以使污渍溶解和/或分散到流体干洗组合物中，和（b）分离物品和流体干洗组合物; 其中所述流体干洗组合物包含浓度为所述二氧化碳重量的0.01至15％的离子表面活性剂，并且其中在步骤a）期间所述离子表面活性剂的至少10％，优选至少30％存在于未溶解的 固体形式。