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| Improvement of the Strength Properties of OCC Pulp by Alkali Soaking Pretreatment |
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| DOI：10.11980/j.issn.0254-508X.2011.11.003 |
| Key Words:soaking pretreatment caustic soaking OCC strength properties repulping efficiency |
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| Abstract:A new method of pretreating old corrugated container (OCC) with caustic solution soaking before repulping or adding sodium hydroxide during repulping has been developed to improve mechanical properties of recycled linerboard made of the OCC. The proposed pretreatment may improve swellability of recycled fibers, leading to significant increase in tensile, ring crush, and burst index of the recycled sheets. The pretreatment also reduces the times needed for OCC repulping, thus increases productivity of the repulper. |
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