The spine and binding ways of softcover and hardcover book printing

Firstly, how to calculate the spine of books printing?
1.Spine and cover dimensions
Cover size = inside page + spine + bleeding line.
For example, inside page size, standard 32 open size, width x height =140mmx203mm, spine 4mm, bleeding line perimeter set to 3mm.
So the final size: width =140*2+4+3*2=290mm, height =203+3*2=209mm.

2.Spine calculation method
Spine thickness = (P ÷2)×0.001346 × grams of paper
P number refers to the total number of pages, a piece of paper =2P, there are 32 pieces of paper made by the main, so it is 64P, the beginning of the use of 80g of paper.
Finally, the spine thickness was calculated to be 3.44576mm. Of course, there was no rounding.

Secondly, how to choose the binding way?
1.Softcover books binding
There have saddle stitched, spiral binding, perfect binding and perfect binding with sewn. The perfect binding with sewn are the most common ways which use for those more than 64pages books printing. It’s more securely and cost is more competitive.

2.Hardcover books binding
It is known by several names: case bound, hardback, sewn hardcover binding and bound book. A hardcover book has many advantages, customers can choose the cover in different materials according to their preference, such as cloth cover, leather cover, cloth and paer combined cover etc.  

No matter what kind of binding way book printing method, you need to hand it over to a professional Chinese printing company. They will choose the best book printing method for you, and provide you with a reasonable offer with high quality printed books in China.
Chinaprintingexport.com is your reliable book printing company. We have many years of printing experience, excellent printing equipment and factories, and a professional sales team stand by.
Since 1999, with competitive prices and good printing quality, we have won the trust of many buyers around the world and become a professional export printing company in China.