How does wrong grain binding affect doublebinding?
The fibres that make up paper are always aligned either along the length of the page, or along the width of the page. Binders normally take great care to ensure that the paper grain matches the binding of the book, otherwise the layflat quality and binding strength of the book may be severely compromised. Perfect binding can simply not bind wrong grained paper strongly. On the other hand, doublebinding is extremely forgiving regarding wrong grain binding. So far, tests have found that it doesn’t really matter if paper is bound against the grain using doublebinding. The results are almost the same, and sometimes even superior. As a general rule, wrong grain binding yields a book that is still much stronger than perfect binding, and only slightly less layflat than a book that has been bound with correct grain. This is of great importance to digital publishers who print on full sheets of landscape bond paper, which are cut in half into an A5-sized book of portrait orientation. Doublebindi
