SOME PRELIMINARY DATA ON THE USE OF ASCLEPIAS-SYIRIACA SEED HAIRS IN PULP-AND-PAPER-MANUFACTURE

Removal of lignin, an aromatic polymer associated with cell-plant poly saccharides from raw fibrous material is a fundamental process in pulp and paper industry. The classical processes of delignification produc e toxic waste, products polluting the environment. Implementation of a ny biological treatment sequence into the classical bleaching sequence s has produced very encouraging results, promising a significant reduc tion and potential elimination of molecular chlorine. The seed hairs f rom Asclepias syriaca are considered a waste material with a compositi on permitting obtainment of pulp with papermaking properties. After bo iling with distilled water, an enzymatic treatment was apllied, using CARTHAZYME HS, which contributes to cleavage of the hemicellulose-lign in linkages, thus improving accessibility and efficiency of the chemic als used in the bleaching processes.