发明名称 |
Methods for carbon dioxide dry cleaning with integrated distribution |
摘要 |
The present invention provides a dry cleaning process that facilitates distribution of detergent and solvent and (optionally) facilitates recovery of cleaning by-products in conjunction with the cleaning of articles at a dry cleaning facility. The process comprises the steps of: (a) receiving from a source a dry cleaning solvent at the dry cleaning facility, the solvent consisting essentially of carbon dioxide; (b) receiving a concentrated detergent formulation (preferably a liquid formulation) at the cleaning facility; (c) accepting from customers soiled articles to be cleaned at the cleaning facility; (d) mixing the dry cleaning solvent and the concentrated detergent formulation to provide a dry cleaning formulation comprised of from 30 or 40 to 99 percent by weight of carbon dioxide solvent; (e) cleaning the articles in a cleaning apparatus to produce cleaned articles; (f) at least periodically distilling the dry cleaning formulation to produce a still residue comprising surfactant and soil; and then (g) returning the cleaned articles to the customers. Optionally but preferably, the process further comprises the step of: (h) returning the still residue to a waste collector or reprocessor for suitable disposal.
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申请公布号 |
US6332342(B2) |
申请公布日期 |
2001.12.25 |
申请号 |
US20010842603 |
申请日期 |
2001.04.26 |
申请人 |
MCCLAIN JAMES B.;ROMACK TIMOTHY J.;DEYOUNG JAMES P.;LIENHART R. BRADLEY;DESIMONE JOSEPH M.;HUGGINS KENNETH L. |
发明人 |
MCCLAIN JAMES B.;ROMACK TIMOTHY J.;DEYOUNG JAMES P.;LIENHART R. BRADLEY;DESIMONE JOSEPH M.;HUGGINS KENNETH L. |
分类号 |
D06L1/02;(IPC1-7):D06B9/06;D06F43/08 |
主分类号 |
D06L1/02 |
代理机构 |
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主权项 |
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