Delignification of L. leucocephala and C. equisetifolia through kraft pulping and Mitigation of Vessel Picking

Poonam Maan, Ashish Kadam, Dharm Dutt


Leucaena leucocephala and Casuarina equisetifolia are two fast-growing deciduous tropical hardwoods that were characterized for their morpho-logical and chemical characteristics to assess their suitability for pulp production. The effects of kraft pulping sulfidity, cooking time, and cooking temperature on screened pulp yield and Kappa num¬ber were studied. Handsheets made from these pulps showed a vessel picking problem during printing that was reduced by treating the pulp with 0.1% cellulase and beating the pulp at high consistency.


Leucaena leucocephala; Casuarina equisetifolia; Chemical composition; Kraft pulp; Cellulase; Vessel picking

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