Strawboard

Strawboard is a kind of Millboard (q.v.), or thick cardboard, made of straw after it has been boiled with lime or soda to soften it. The cheap kinds of strawboards are used for making common boxes of various kinds, and for protecting articles sent by post or railway. Good qualities of board suitable for binding books and other purposes are made of straw mixed with flax and jute waste from spinning-mills.