Saddle stitching book printing china notes

The binding way of saddle stitching is mostly used in magazines, books, and catalog etc. The paper of this kind of book printing china chooses 60-80gsm offset paper commonly, high-grade magazine use 105-157gsm art paper. If you carefully observe the semi-finished products folded and stacked together, you will find that there is an accumulated width between the posts. For every 1mm increase in book thickness, the transverse stacking width of the spine will increase by 0.5mm, and increase with the number of posts. Under 2 prints, the spine of the book at the mouth of the accumulated width of about 2mm, riding after the spine of the stack of pages will be tighter by the wire nail.

When cutting into finished products, the most inside the pages will be cut off about 2mm, this effect on the page quality is not too obvious, but when the number of tie increased to 4, the book spine of the accumulated width will generally increase to 3-5mm, the most inside the invisible extruded, cut the mouth formed trapezoidal edge.

Due to the set of 4 posts can not be close, sometimes the width of the spine stack will be greater than 5mm, and the width difference can not be resolved, cutting, the inside of the page was extruded edge of the finished product was cut 5mm, open the finished product book, page finished part of the finished product was cut, some frame edge of the picture is not in the center. Most seriously, some of the page Numbers were cut off, and some were moved significantly to the edge of the cut. The page Numbers were badly misaligned throughout the book, directly undermining the overall page design.

How can we solve this problem?

Above all, it must understand the product characteristic, the paper type that chooses and tie number. For only 1 to 2 posts of general magazine, choose 60gsm offset paper, according to the normal collage method, version center can be placed.

If it is 4 pieces of books, no matter what type of paper to choose, collage of the third piece of all pages of the heart should be moved to the custom mouth 3mm or so, the fourth piece on this basis should be increased to 5mm or so, do not worry about the heart of the movement will appear unexpected quality problems.


If it is a high-grade picture magazine, you can use the computer collage system, 1 to 4 posts of the heart, page number 1 32, 33 64 to the mouth to do the gradient of the movement, from the inside page of 32p and 33p, move 5mm or so, and gradually to 1p and 64p center position to stop.

In addition, you can also use the required paper to fold a complete sample book before collage, and measure the width of its spine after stacking, in order to obtain accurate data, before production, so as to reduce unnecessary waste.

More information for book printing china, pay attention to https://www.bookprintingchina.com/.

NOTE: This article is posted originally on https://chinabooprinting.photo.blog/2020/02/17/saddle-stitching-book-printing-china-notes/.