Canning and Fish Packaging Technology

Unit 13 - Paper and Board

13.1.5.2.1.Wall boards

Corrugated board is made from a corrugated sheet faced on each side of the fluted sheet is called single wall board.

Double wall board has 3 facings and two fluted sheets with the following sequence. Liner, fluted sheet, centre liner, fluted sheet, liner.

Triple wall board has seven layers of paper three fluted and four liners alternatively.