Response of bagasse and wheat straw recycled pulps to refining

被引：0

作者：

Garg, M ^{[1
]}

Singh, SP ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Paper Technol, Roorkee, Uttar Pradesh, India

来源：

TAPPI JOURNAL | 2004年 / 3卷 / 10期

关键词：

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The effect of refining on the recycled chemical bleached pulps of bagasse and wheat straw has been evaluated. Refining in a PFI mill is capable of recovering the tensile strength of recycled pulps to a large extent but with a sharp decrease in freeness. Reduction in freeness due to refining is more severe for wheat straw pulp than for bagasse pulp. High content of very fine particles in the wheat straw pulp contributes a great deal to its slowness. An alkali treatment of pulps prior to refining reduces decrease in freeness. A 50:50 mixture of refined coarse fraction and unrefined fines fraction of the recycled pulps can be prepared to have much higher freeness than the refined whole pulp for equivalent strength values.

引用

页码：11 / 17

页数：7