Technical Problems and Handling in Rubber Books (3)

Third, pre-press spelling and glue binding

1. The bookbinding bookbinding mouthpiece is 1mm larger than the booked mouthpiece, and it is 2mm in order to be used for rubber binding, milling, backing and grooving to ensure that the milling cutter has enough milling back dimensions and groove depth.
2. In the glue-binding process, in order to prevent the quality problems of the wrong posts and the less posts, the second check of wrong posts and less posts was made. There is a simple and feasible method: on the basis of the original ridge-stepped placard block (awareness), another step-like placard block (awareness) is also added to the celestial part of the signature so that the back of the book can be milled on the back. After slicing and covering the cover, solve the second pass through the head to check if there are any quality problems with the wrong posts and less posts.
3, processing books with Le mouth of the book block, in the glue before making pull (open) processing. That is, on the basis of the original size of the original wide widened 1.5mm?? 3mm, so that it completely guarantees that the product of the book block in the milling back slotted book meets the standard size of the finished product. When the book block is milled with a 1郾郾5mm puller in the milling back slot, the incision is increased by 1.5mm. In short, when pulling the mouth, it is necessary to grasp the principle of determining the pull in accordance with the principle of different paper and folding number. The number of incisions increased in the version to ensure the book's standard cut size.
4. At the same time, when spelling out the large version of the cover, the white edge of the cover should be designed to increase about 5mm. The white edge can be used as a "reception station" for glue, which helps to prevent the glue from leaking out of the cover during the glue binding process. First, it can prevent the remaining glue from leaking into the shaping clamp. Second, it can prevent the book from being I have a dirty gummer.