Proportion of raw material optimisation in handicraft paper making made of Pinang fibre (Areca catechu l.) and old corrugated cardboard (used cardboard)

Betel nut (Areca catechu L.) fibre is regarded as waste containing of 70.2% cellulose, 10.92% water, and 6.02% ash. In direct utilisation of areca nut, certain innovation is required, one of which ...