Pulping and papermaking properties of pati ( Typha)

• Published in: Industrial crops and products Vol. 26; no. 3; pp. 259 - 264
• Main Authors: Jahan, M. Sarwar, Islam, M. Khalidul, Chowdhury, D.A. Nasima, Moeiz, S.M. Iqbal, Arman, U.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2007
• Subjects: alkali treatment; ash content; cellulose; chemical composition; extractives; Freeness; geographical variation; Grass; kappa number; lignin; Low temperature pulping; paper pulp; plant fibers; plant morphology; pulping; strength (mechanics); Strength properties; temperature; Typha; Viscosity; yields; Bangladesh; Low temperature pulping; Viscosity; Strength properties; Grass; Freeness
• ISSN: 0926-6690; 1872-633X
• DOI: 10.1016/j.indcrop.2007.03.014

Pati grown in the northern and eastern region of Bangladesh was submitted to chemical and morphological analysis. The results of general chemical analysis have evidenced the different relative abundance of holocellulose, lignin, extractive and ash. The eastern region pati had higher holocellulose and lower lignin and extractives than the northern region pati. Morphological properties of both regions pati were similar. Pulping of northern and eastern region pati was done with varying active alkali and cooking time at boiling temperature. The viscosity of pati pulp was increased with decreasing kappa number. Eastern region pati had higher pulp yield and lower kappa number than northern region pati. Initial SR value and strength properties of pati were higher than other nonwood. Eastern region pati showed higher strength properties than northern region pati.