发明名称 |
METHOD FOR REDUCTION OF LIGHT-INDUCED YELLOWING OF LIGNIN-CONTAINING MATERIAL |
摘要 |
The present invention provides a method for treating lignin-containing fibrous material to reduce its susceptibility to yellowing, comprising stabilizing the lignin of the material with an oxidizing agent capable of oxidizing phenolic or similar groups, which may undergo reactions conductive to the formation of colored sites on the fibers, and treating the material with a fluorescent whitening agent. The present invention also provides a lignin-containing material obtained by said method.
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申请公布号 |
CA2722055(A1) |
申请公布日期 |
2009.10.29 |
申请号 |
CA20092722055 |
申请日期 |
2009.04.17 |
申请人 |
KEMIRA OYJ |
发明人 |
VUORENPALO, VELI-MATTI;PERE, JAAKKO;AKSELA, REIJO;TAUBER, ANDREI |
分类号 |
D21H21/14;D21C9/00 |
主分类号 |
D21H21/14 |
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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