When the size is finalized in a book printing design process, the designer has the problem of pages amount, costs and type of binding. Because these three factors are impacted by each other, the owner of this book printing job has the difficulty in clarifying from the interlaced relationships and affects.
In general, we would like to introduce some concepts before illustrating this topic, which will help you to understand well.
Signature - When printed sheets come from the cylinder, it should be folded firstly. For a definite paper size for press, the most pages amount filled in were settled down. So we call this printed sheet folded as signature, the smallest unit of binding operation.
Layout - It means to place the pages based on definite signature. For example, if the signature could be filled in 16pages at mostly, the manufacturing cost is optimized obviously. Of course, the design also can fill in 8pages, 4pages in an analagmatic format to save the printing cost. Sometimes, 12pages format also could be considered if the ordering quantity is not very large to save the paper cost. Each coin has two sides. We could not choose both of them, but only one aspect. The standard is final unit cost for entire book printing job.
Type of binding - Here is means that smythe sewn, perfect binding, saddle stitching or loose-leaf. But any way for all of them, the signatures should be treated firstly in binding.
Now let us summary above all we discussed. For a saddle stitch book printing job, total pages amount should be divided by four, if two pages were left, possibly you can add two blank pages to make it divided by four. For a perfect binding book printing job, even pages amount are workable, but if it could be divided by signature pages, it would be better, which happen to smythe sewn and loose-leaf binding jobs. But if it could be not possible, the design should make total pages amount divided by 1/2 of signature pages, even though 1/4 of ones. The cost could be optimized due to this arrangement.
In one word, loose-leave binding book printing jobs just require text body with even numbers, it is workable in technical, but maybe it is not economical option. Based on fixed imposition, there are certain pages numbers for each form such as 8pp, 12pp, 16pp, 24pp and 32pp.
photo book printing, comic book printing, cookbook printing, Hardbound Book Printing , Magazine Printing Services.All our printing is traditional offset printing, which produces the highest quality. We believe digital printing can never match the sharp, clean results of offset and that?¡¥s why we don?¡¥t use it.