ON SHREDDING TEST OF AKITA RAYON PULP

Abstract

Studies have been made on the possible factors affecting bulk No. The bulk Nos. of alkali cellulose obtained from different rayon pulps under the same conditions were compared. Some of the conclusions reached in this study are as follows.
1) No positive effect is observed by hemicellulose during alkali steeping.
2) No distinct effect on the pressed ratio and shredding curve.
3) The higher the steeping temperature, the shorter the shredding time, although this tendency is not very notable.
4) The longer the steeping time, the better the shredding action
5) Shredding works better at 40°C than at 20°C but when the temperature gets to 60°C, it is no longer good because shredding swiftly completes and powderized and the bulk No. suddenly advances.