Sticker printed books are mainly bound by hot melt adhesive, using self-adhesive sequence to tell hot melt adhesive, hot sol generally controls the temperature of hot melt adhesive at 160 degrees, and only at the appropriate operating temperature, hot melt adhesive produces the strongest adhesion, only at the optimum temperature will glue in the book, book cover firmly adheres to, so accurate temperature control. Adhesive pot is the key to realize the best bonding of hot melt adhesives. At present, there is a kind of cold glue, which can be used directly or properly with water according to the situation. Cold glue is characterized by strong adhesion, easy to use, but slow drying speed. Taking hot melt adhesives as an example, the paper quality problems easily caused by hot melt adhesives in use were analyzed.
In order to prevent the appearance pages of offset books and open the glue phenomenon, but also need to change the traditional pre-press assembly method, the traditional four to three times, in addition to paying attention to the impact of climate and environmental factors can not be ignored. Similarly, in the process of page matching, if the posts after the page are not directly completed into the next process, then it is easy to fall out of the quality of the page, so the posts into the next process must be completed. The so-called finishing is to tie up, compact and bind the semi-finished products of the book. After the compaction, the back of the book is coated with a layer of adhesive, so that the back of the book is firm and firm. After the adhesive on the back of the book is dried, the back of the book is arranged separately to enter the next process. The sorting of books after binding with pages is a very important step in the whole process of non-adhesive binding. There are many reasons for the problem of page dropping, so combining with the actual operation situation, we can eliminate the phenomenon of page dropping and make the product excellent.
There are two kinds of glue, yellow glue and white glue. Some customers prefer white glue. They feel more beautiful in transparency. In fact, as long as the effect of quality control is the same.
The quality of post-press binding process is related to the overall effect of a book. Binding is generally the last process. If there are problems in the last process, it will cause waste, and will cause serious losses and reputation of the company.