A book comes out, which is appreciated by readers, recognized by society, passed down from generation to generation, and looks like a treasure collection. This is not only the author ’s meticulous creation, crafted flowers, but also the superb talent of the publisher ’s aesthetics and times The performance and printers give full play to the crystallization of skills and hard work. People are very happy to have created a common spiritual wealth and knowledge treasure house.

In my actual work, the author observed that the quality of some books and periodicals was unsatisfactory, and sometimes felt very uneasy and sorry. Some problems are difficult for the printer to improve. From the perspective of binding and processing, I have to ask a few questions here to discuss with the binding designer. These problems include both the method of framing and the problem of materials used for framing.

1. The issue of the framing method. For the binding of Lekou books, it is advisable to use thread-lock binding and not to use wireless binding. The wireless adhesive back is flat and straight, but from the perspective of the binding process, Lekou's books are bound by wireless perfect binding. When binding, the cut part must be cut first, and then the wireless perfect binding machine milling back Roughing, gluing and coating. The cut part has been formed, and the pressure of the book binder of the wireless perfect binding machine will inevitably cause the cut part to be deformed and affect the quality of the product. To make it not deformed, the wireless perfect binding machine has to be processed twice. In the first processing, the back of the book must be wrapped with waste paper, and then the paper is torn off, and then the second processing is performed. This kind of time-consuming and time-consuming (adding one time to apply hot-melt glue) binding method for wireless binding of Lekou, its cost is higher than the method of binding for wire binding. Obviously, this way of framing is undesirable. Therefore, the author believes that it is better to adopt the binding method of the thread-locking glue for all books with Lekou.

2. For paperback books, the cover of the coated paper is not plastic, and the background color of the cover is not dark. Coated paper is afraid of moisture. When wet, it will not only bow and wrinkle, but also stick. The adhesive used in the cover of the paperback pack has a certain amount of moisture (except for hot melt adhesives). If the background color of the cover is dark, the cover is affected by moisture when wrapping, and the color at the binding feet of the first and fourth seals will stick, causing a little white eye-marking and affecting the appearance. If the background color of the cover is darker, this phenomenon is more obvious, otherwise, it is slightly better.

In addition, the hardcover art paper ring liner printing dark colors has similar problems as described above. When the case is hardcovered, the two sides of the book case need to be coated with adhesive. After the book case and the book block are sleeved, the pressure tank is heated, and the coated paper will cause adhesion when heated. In this way, the background color of the ring lining will turn white, detracting from the beauty of the ring lining pattern.

3. In the use of binding materials for hardcover books, we believe that there are currently two problems that seriously affect the firmness of hardcover:

First, the paper hardcover cover uses coated paper instead of plastic, which directly affects the firmness of the book cover. The fiber and bending resistance of the coated paper itself are very poor. The firmness of the hardcover book is mainly determined by the firmness of the connection between the book case and the book block. The fabric of the bookcase has poor flexing and bending properties, and is easy to break. The bookcase and book block are easily separated, which directly affects the quality of the product.

In the past, some hardcover books used cloth waist paper, and some books or books also used this method, the purpose of which was to enhance the fastness of the book cover. We feel that this is much stronger and better than the simple paper case. If you must use paper hardcover, the quality of paper cloth waist will be better.

Second, the hardcover book backing cloth does not use gauze and non-woven fabrics, which also has a certain influence on the firmness of the hardcover. Non-woven fabric is made of cellulose material pressed with viscose, and its flexibility is far less than gauze.

The firmness of hardcover books, as mentioned above, is determined by the degree of adhesion between the book case and the book block. The binding material used on the back of the book will have a direct impact on the firmness. Years of production practice, we know that some may consider the cost or benefit, therefore, the consideration of the finishing material is sometimes less good. For example, there are some hardcover books of world literature, the cover design is very delicate, the printing quality is also very beautiful, and it is very collectible. However, from the view of the binding materials used, the cover art paper is not covered with plastic, and the ring liner is art paper The back of the book is a non-woven fabric. All three binding materials lack flexibility, toughness, and are easily broken. The hardcover books made of this binding material must be of extremely poor firmness. They cannot withstand flipping, and the book case and the bond will not be used for a long time after the book case is broken, the ring liner is broken, and the book back cloth is also broken. The perfect hardcover was completely unshelled, and ultimately the doom of "Jin Chan's unshelling" could not be escaped, which made the reader laugh. Hardcover books and periodicals, which only talk about the appearance of the surface and not the internal firmness, are more common. At present, to strengthen the firmness of hardcover books and periodicals, this also needs to be improved from the materials used for binding.

Pet Training

Ningbo XISXI E-commerce Co., Ltd , https://www.petspetsproducts.com