corrugated fiber board and boxes manufacture process

corrugated fiber board and boxes manufacture process

MANUFACTURE OF CORRUGATED BOARD:
Corrugated board is made of a corrugated paper sheet of paper glued to the facings of flat-paper, usually kraft.A corrugating machine is employed for the corrugation of flat sheet and preparation of corrugated flexible 2 ply board. The machine is called as single-face corrugating machine. One layer of paper becomes corrugated after passing through the heated fluted rolls and the other is brought in contact with the former having been glued at the tips. These two sheets get pasted together and are wound in rolls. The resulting roll is known as single face or 2 ply corrugated board.

By cutting this roll with board cutter machine; gluing the corrugated side on pasting machine and then placing 3rd ply of paper over it, double face or 3ply corrugated board is produced. Similarly board to board can be pasted to form thicker boards i.e. 5-ply and 9-ply boards.

MANIUFACTURING OF BOXES:-
The corrugated board produced as above is dried (for drying of glue) and may now be processed further to produce-corrugated boxes. The size of a box is always given in terms of the inside dimensions, with the longer dimension (length) of the opening given first followed by width and depth. The most economical box for a given cubic contents has the proportions of 2:1:2 (L:W:D). However, other proportions may also be used. For manufacturing boxed of any particular dimensions, it is first decided as to how the blanks for the boxes should be cut to minimize the wastage.

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