Etude des caracteristiques papetieres de l’alfa du Maroc orientat

Abstract EN

To meet their needs in wood, pulp and paper supplies, most countries in the world arc dependant on importation.

These countries make a great effort to find out other substitution lignocellulosic material.

For the case of Morocco, esparto grass (Alfa), a graminae specie which occupies an area of about 3,2 million hectares, could constitute a renewable and abundant resource of cellulosic fibers.

This study is to assess the pulping characteristics of the esthem Moroccan esparto grass with regard to its provenances and age of its leaves.

The results reported here indicate that the pulp yield mean is satisfactory, about 45,4 %.

This pulp yield was found to be significantly influenced by the locations and age.

The fibers length, which has a mean value of 1,66 mm, vanes between 0.9 and 3.65mm.

An important proportion of long fibers was noticed, varying between 2,00 mm and 3,65 mm.

This implies that paper mechanical resistance will be enhanced.

Concerning the whiteness index (I KMn04) is very low, less than 10, indicating that the esparto grass is very easy to delignify and the obtained pulp is very easy to bleach.

The luminance, which characterizes the clearness, is very high (80%) and hightly correlated to whiteness index.