3 ms·
Probably vertical for strength too. They need it to be pulled the rollers in the printing machine.
by emmelaich 7y ago
Probably vertical for strength too. They need it to be pulled the rollers in the printing machine.
- ggus 7y agoPaper in books is also aligned the same way, to resist better to humidity. Humidity enlarges the fibres, but doesn't get them longer. In a humid environment a book grows wider but not taller. If the paper is oriented the other way, the paper would grow taller and the spine of the book, which is stitched and glued, would force the paper to warp and became ondulated.