发明名称 |
VERFAHREN ZUM ENTFÄRBEN VON ALTPAPIER |
摘要 |
<p>The present invention relates to a process for deinking waste paper comprising treating the waste paper with a peroxide compound in an aqueous alkaline medium in the presence of a first polymer (A) comprising a Ca-binding polymer in the form of a polycarboxylate polymer and a second polymer (B) comprising a poly-alfa-hydroxyacrylic acid or a salt thereof or the corresponding polylactone, said process additionally comprising treating the waste paper with at least one non-ionic surfactant or with at least one combination of a non-ionic surfactant and a fatty acid or a salt thereof to promote ink detachment and/or ink removal.</p> |
申请公布号 |
AT384821(T) |
申请公布日期 |
2008.02.15 |
申请号 |
AT20050756357T |
申请日期 |
2005.06.16 |
申请人 |
KEMIRA OYJ |
发明人 |
HORACEK, BOB;JAEKAERAE, JUKKA;SVEDMAN, MIKAEL |
分类号 |
D21C5/02;D21C |
主分类号 |
D21C5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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