FREMGANGSMAATE FOR RENSNING AV SEKUNDAERE CELLULOSEFIBRE
摘要
<p>Washing methods of deinking secondary cellulose fiber (i.e., removing unwanted non-cellulose materials therefrom) involve deinking the fiber with surface-active agent comprising: an oxyethylene glycol chain, wherein one terminal hydroxyl of the chain has been replaced with an ether group selected from an aliphatic ether group and an alkylaromatic ether group, and the other terminal hydroxyl of the chain has been replaced with an ether group selected from a polyoxypropylene group and a benzyl ether group. The present washing method of deinking reduces or eliminates objectionable foam, potentially provides energy savings yet maintains or improves the quality of the deinked fiber.</p>
申请公布号
NO803412(A)
申请公布日期
1981.05.14
申请号
NO19800003412
申请日期
1980.11.12
申请人
ECONOMICS LABORATORY, INC.,
发明人
FREIS, RICHARD E.,;MALONEY, JAMES E.,;OAKES, THOMAS R.,