Improvements introduced in the manufacture of sacks and containers intended for transport in special conditions (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent no. 249.254 that falls on improvements introduced in the manufacture of packaging bags for transport under special conditions, characterized because the combination of operations: subject a band of curled paper of suitable width, to an impregnation operation with a plastic material on one of its faces, subjecting this same band of curled paper provided with a coating of plastic material on its other side; subjecting, by the action of heat, this band of plasticized material on both sides to a stabilization or polymerization operation of the applied plastic material. (Machine-translation by Google Translate, not legally binding)