New process and equipment for manufacturing book block of hardcover book

Abstract

The invention provides a new process for manufacturing the book block of a hardcover book, and the new process comprises the following steps: printing paper, folding, collating, milling the back of the book block, coating a PUR (Poly Urethane Resin) primer, coating an EVA (Ethylene Vinyl Acetate) side adhesive, placing gauze, playing and molding the book block, transporting the book block, solidifying an adhesive layer, cutting the book block and the like; and the step of wire locking which has the disadvantages of time consumption and long labor hours in the traditional process is omitted. In order to enable the book block to reach the service standards, the PUR primer is adopted; compared with the traditional EVA hot-melting primer, the PUR primer has a series of advantages of greater tension, better temperature adaptability, stronger strength and the like; the tension resistance of the book is ensured under the condition that the wire locking is not carried out on the book block; and simultaneously, the book is beautiful and is easy to store. Furthermore, the new equipment suitable for the new process for manufacturing the book block of the hardcover book provide by the invention comprises an adhesive binding machine and a collating machine, can carry out the revision and collation on the book block without the operation of wire locking and has the advantages of labor hour saving and cost reduction.

Description

technical field [0001] The invention relates to the field of book binding, in particular to a hardcover book binding technology. Background technique [0002] According to the traditional process of making hardcover book blocks, there are several processes of paper printing, page folding, page matching and sewing, among which page matching and sewing are the two processes with the slowest efficiency and the most labor hours in the hardcover book block production process. The process accounts for about 30% of the man-hours required for hardcover book block production. [0003] In addition, in addition to the above-mentioned several processes, there is also a process of gluing. The glue used in the traditional hardcover book block production process is usually EVA hot-melt adhesive. EVA hot-melt adhesive is a polymer that does not require solvents, does not contain moisture, and is 100% solid meltable. It is a solid, heated and melted to a certain extent to become a fluid an...

AI Technical Summary

Problems solved by technology

[0009] However, this EVA hot melt adhesive also has a lot of problems in the application of hardcover book blocks, such as the pulling force is not large enough, if it is not locked, it cannot reach the standard of hardcover book blocks; If the amount of hot melt adhesive is large, the thickness will increase, which will affect the flattening performance; the cold and heat resistance performance is not ideal, and when the temperature is lower than -18°C or greater than 50°C, the page will appear; poor adaptability, for plastics The bonding effect of materials such as film and varnish does not meet the requirements of use, etc.

Images