The effects of bleaching sequences on recyclability of bamboo and bagasse pulps

被引：0

作者：

Zhan, Huaiyu ^{[1
]}

Zhuo, Yu ^{[1
]}

Li, Bingyun ^{[1
]}

Basta, Jiri ^{[2
]}

Greschik, Thomas ^{[2
]}

机构：

[1] State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China

[2] Eka Chemicals AB, Bohus, Sweden

来源：

Progress in Paper Recycling | 2008年 / 17卷 / 04期

关键词：

Pulp materials - Cleaning - Recycling - Bagasse - Bamboo - Light scattering;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This paper discusses the recyclability of bamboo and bagasse pulps bleached by CEH and two different ECF sequences to an ISO brightness of about 85%. After beating to 42-45 SR, the pulps were subjected to a laboratory procedure, similar to the papermaking process. The various bleached and recycled pulps were tested for WRV, breaking length, zero-span tensile index, fiber-length and light-scattering coefficient. It was shown that pulps bleached with the ECF-type bleaching sequences can withstand the recycling process much better than the CEH bleached pulps. Even after recycling 5 times, the breaking length and zero-span tensile index values of the ECF bleached pulps are better than those of the virgin CEH bleached pulps. The recycling benefits of pulps bleached with ECF bleaching sequences were observed from both of the raw materials tested, i.e. bamboo and bagasse.

引用

页码：11 / 14