In recent years, with the acceleration of publishing speed, more and more books have been printed using flat-packed wireless adhesives. According to incomplete statistics, the number of printed books and periodicals installed in China in the past two years is roughly 8 billion, of which there are more than 40. Billion books are processed into booklets using wireless glue binding. Adhesive books used thermal adhesive material EVA hot-melt adhesives, use nearly 10,000 tons per year; the use of such adhesive materials for book binding of more than 700,000 units; wireless adhesive binding equipment only on the linkage production line there One hundred, more than 2,000 units stand alone. The use of glue-binding technology to process a large number of books, the use of large adhesive materials, involving a wide range of processing units, is unprecedented in the book binding history. However, it cannot be seen that the quality of book binding has been found to be more serious in recent years. According to the relevant sections, the bound unqualified products accounted for about 65% of the total print quality problems, including wireless adhesives. More than 80% of the non-conforming products caused by order processing accounted for more than 80%. The unqualified products mainly reflected from the surface. After the books and periodicals were processed, there were page-failures, book-backs, broken book blocks, bubbles, perforations, and spilled glue. Where does the reason come from? Now we analyze from the following points, so that the relevant units can find out the reasons in real management work, be solved, and improve the quality of wireless glue processing.
Inadequate understanding of the importance of changes in the finishing process
The finishing process is the final finishing process of the printing process, and it is also the final finishing process of book processing. It relates to the use value, preservation value, and reading value of printed products, and affects the above two processes (prepress and printing). The processing effect and the guarantee of the cycle; if there is no correct and firm connection, the beautiful packaging will not reflect the value of the printed product. Post-press is a very important procedure for the final packaging of printed products.
For a long period of time, people have always had a prejudice against this process. They think that anyone can do the binding, neglecting its importance. At the same time, the quality of the people who have engaged in this work for many years is lower than that before printing and printing. As for Beijing Printing Academy, one of Asia's largest printing institutes, it has not bound such a specialized discipline that accounts for one-third of the total printing industry in the past few years. It is only in recent years that there are some printed and bound books (in the packaging and decoration department). . In large-scale printing information conferences, printing and scientific research meetings are generally speaking before printing, how to print, such as only prepress, printing printing products to complete the mission, books can be read without loading a book. Should this kind of situation continue, will the quality of bookbinding not increase? The quality of book decoration will affect the overall image of China's book publishing, so it must be really noticed.
Post-press binding is a processing process involving complicated equipment, complicated processes, and various types of materials and changes; there are dozens of kinds of equipment, with more than 100 models and forms, and nearly 10 types of linkage production lines. Each line has a different model and form, and there is almost no commonality between stand-alone devices. Post-press has gradually evolved from a manual operation to a modern process of mechanization, linkage, and automation.
The binding process after printing is more complicated and changes, and there are more than 10 kinds of methods only. Some installation methods only have more than 30 processes, and when the processing technology changes, the publisher needs to be asked how to process it. Whether the binding can meet the requirements is rarely considered.
There are hundreds of kinds of binding materials and styles. There are many kinds of materials involved in each kind of materials. For example, there are more than 10 kinds of cover materials and their textures are different. These different materials also involve the use of bonding materials, and the bonding materials The difference is also related to the firmness of the bonded object and the bond. The correct use of materials directly affects the firmness of books and their preservation life. At present, the quality problems that arise in wireless glue binding are directly related to the use of EVA hot melt adhesives.
In short, the finishing process is not only a complicated processing process, but also an art processing process. Today's books are not only reading items, but also a kind of gifts, artworks, and valuable preservation products; it not only adds knowledge to humans, It also brings people artistic enjoyment. Therefore, the effect and value of printed products must be demonstrated by the advantages and disadvantages of the printed binding. For all of us who are engaged in book publishing, production and other aspects, we must clearly understand the complexity and importance of this process and the overall concept of making a book, and re-understand and understand this procedure for publishing high-quality books. .
The equipment has changed and the quality of personnel has not changed
The modern printing and binding equipment has entered a period of mechanization, automation, and linkage production. Especially after the middle and early 1990s, China has entered the third period of transformation of the binding equipment. Its characteristic is that all are close to international standards. At present, China has about 100 large-scale linkage production lines, and the most advanced linkage line has a price of nearly 20 million RMB: computer control, image display, etc., and the level of equipment is getting higher and higher. These equipment management and operation require a certain level of technology. Management and operations personnel are competent. However, it is understood that currently there are very few talents in this field in China, and the existing skilled workers are far from the expected requirements; generally speaking, the equipment comes again, and some units only let the personnel train for a few days and let the machine operate. Most of the equipment is dry when it comes to equipment, and the machine can turn up. As a result, equipment life is shortened, efficiency cannot be improved, quality of finished products does not meet standard requirements, problems arise, and equipment resentment is not enough. The reason for finding people is that for most of the quality of the team that is currently printing and binding, most of them are not professional school graduates, and they have not even done any training. How can they adapt to today's modern production? The equipment has become more advanced, and the quality of people has not changed. How can we keep up with the trend of the times?
Process and materials have changed, and environmental conditions have not changed
As far as the wireless glue binding process is concerned, almost every book processing factory has to deal with it. Most of the bonding materials used in this process are thermoplastic EVA hot melt adhesives, and the thermoplastic bonding materials are very strict in terms of environment and conditions when they are used. At the "Sino-German binding technology training class" organized by Nanjing Aide Printing Co., Ltd., Mr. Schild, a German teacher, introduced the importance of environment and conditions when he explained the use of EVA hot melt adhesives, and introduced EVA hot melt adhesives in France. The temperature and humidity in the processing room of the bookshop are controlled by certain data, among which the temperature is controlled between 19°C and 25°C, and the humidity is controlled at about 50% RH; while the temperature in the wireless glue production workshop is generally required to reach 17°C in China. Between ~30°C; this requirement is twice as good as abroad. However, with such requirements, except for a few units and regions that can be reached, most of them cannot be implemented in accordance with this requirement. For example, in southern China, there are many unit-binding workshops that do not have constant temperature or air conditioning, and the highest temperatures use EVA hot melt adhesives. The temperature of the workshop was as high as about 38°C, which resulted in the extension of the curing time after the application of the glue, the non-hardening setting, and the linkage production line could not be cut. In the northern winter, when the temperature is low, the indoor temperature is the lowest (no constant temperature, air-conditioning equipment) to around 10°C, which causes the hot melt adhesive to cure in advance and fail to bond. As for temperature, due to regional differences, the lack of standardization of enterprises (general binding workshops without hygrometer devices) requires that the expected humidity standards are even greater; for example, in southern China where there is much rain and humidity, the humidity in the workshop is the highest. About 80% RH, while the northern part of the rain is less dry, the lowest humidity can reach about 30% RH. Humidity and excessive humidity have a direct impact on the effect of paper and book bonding and setting, which can cause various quality problems in wireless glue binding books.
In order to improve the binding quality of books, in the binding workshops, especially those where hot melt adhesive materials such as EVA are used, it is necessary to create a good environment and conditions for standardized production. (to be continued)
Inadequate understanding of the importance of changes in the finishing process
The finishing process is the final finishing process of the printing process, and it is also the final finishing process of book processing. It relates to the use value, preservation value, and reading value of printed products, and affects the above two processes (prepress and printing). The processing effect and the guarantee of the cycle; if there is no correct and firm connection, the beautiful packaging will not reflect the value of the printed product. Post-press is a very important procedure for the final packaging of printed products.
For a long period of time, people have always had a prejudice against this process. They think that anyone can do the binding, neglecting its importance. At the same time, the quality of the people who have engaged in this work for many years is lower than that before printing and printing. As for Beijing Printing Academy, one of Asia's largest printing institutes, it has not bound such a specialized discipline that accounts for one-third of the total printing industry in the past few years. It is only in recent years that there are some printed and bound books (in the packaging and decoration department). . In large-scale printing information conferences, printing and scientific research meetings are generally speaking before printing, how to print, such as only prepress, printing printing products to complete the mission, books can be read without loading a book. Should this kind of situation continue, will the quality of bookbinding not increase? The quality of book decoration will affect the overall image of China's book publishing, so it must be really noticed.
Post-press binding is a processing process involving complicated equipment, complicated processes, and various types of materials and changes; there are dozens of kinds of equipment, with more than 100 models and forms, and nearly 10 types of linkage production lines. Each line has a different model and form, and there is almost no commonality between stand-alone devices. Post-press has gradually evolved from a manual operation to a modern process of mechanization, linkage, and automation.
The binding process after printing is more complicated and changes, and there are more than 10 kinds of methods only. Some installation methods only have more than 30 processes, and when the processing technology changes, the publisher needs to be asked how to process it. Whether the binding can meet the requirements is rarely considered.
There are hundreds of kinds of binding materials and styles. There are many kinds of materials involved in each kind of materials. For example, there are more than 10 kinds of cover materials and their textures are different. These different materials also involve the use of bonding materials, and the bonding materials The difference is also related to the firmness of the bonded object and the bond. The correct use of materials directly affects the firmness of books and their preservation life. At present, the quality problems that arise in wireless glue binding are directly related to the use of EVA hot melt adhesives.
In short, the finishing process is not only a complicated processing process, but also an art processing process. Today's books are not only reading items, but also a kind of gifts, artworks, and valuable preservation products; it not only adds knowledge to humans, It also brings people artistic enjoyment. Therefore, the effect and value of printed products must be demonstrated by the advantages and disadvantages of the printed binding. For all of us who are engaged in book publishing, production and other aspects, we must clearly understand the complexity and importance of this process and the overall concept of making a book, and re-understand and understand this procedure for publishing high-quality books. .
The equipment has changed and the quality of personnel has not changed
The modern printing and binding equipment has entered a period of mechanization, automation, and linkage production. Especially after the middle and early 1990s, China has entered the third period of transformation of the binding equipment. Its characteristic is that all are close to international standards. At present, China has about 100 large-scale linkage production lines, and the most advanced linkage line has a price of nearly 20 million RMB: computer control, image display, etc., and the level of equipment is getting higher and higher. These equipment management and operation require a certain level of technology. Management and operations personnel are competent. However, it is understood that currently there are very few talents in this field in China, and the existing skilled workers are far from the expected requirements; generally speaking, the equipment comes again, and some units only let the personnel train for a few days and let the machine operate. Most of the equipment is dry when it comes to equipment, and the machine can turn up. As a result, equipment life is shortened, efficiency cannot be improved, quality of finished products does not meet standard requirements, problems arise, and equipment resentment is not enough. The reason for finding people is that for most of the quality of the team that is currently printing and binding, most of them are not professional school graduates, and they have not even done any training. How can they adapt to today's modern production? The equipment has become more advanced, and the quality of people has not changed. How can we keep up with the trend of the times?
Process and materials have changed, and environmental conditions have not changed
As far as the wireless glue binding process is concerned, almost every book processing factory has to deal with it. Most of the bonding materials used in this process are thermoplastic EVA hot melt adhesives, and the thermoplastic bonding materials are very strict in terms of environment and conditions when they are used. At the "Sino-German binding technology training class" organized by Nanjing Aide Printing Co., Ltd., Mr. Schild, a German teacher, introduced the importance of environment and conditions when he explained the use of EVA hot melt adhesives, and introduced EVA hot melt adhesives in France. The temperature and humidity in the processing room of the bookshop are controlled by certain data, among which the temperature is controlled between 19°C and 25°C, and the humidity is controlled at about 50% RH; while the temperature in the wireless glue production workshop is generally required to reach 17°C in China. Between ~30°C; this requirement is twice as good as abroad. However, with such requirements, except for a few units and regions that can be reached, most of them cannot be implemented in accordance with this requirement. For example, in southern China, there are many unit-binding workshops that do not have constant temperature or air conditioning, and the highest temperatures use EVA hot melt adhesives. The temperature of the workshop was as high as about 38°C, which resulted in the extension of the curing time after the application of the glue, the non-hardening setting, and the linkage production line could not be cut. In the northern winter, when the temperature is low, the indoor temperature is the lowest (no constant temperature, air-conditioning equipment) to around 10°C, which causes the hot melt adhesive to cure in advance and fail to bond. As for temperature, due to regional differences, the lack of standardization of enterprises (general binding workshops without hygrometer devices) requires that the expected humidity standards are even greater; for example, in southern China where there is much rain and humidity, the humidity in the workshop is the highest. About 80% RH, while the northern part of the rain is less dry, the lowest humidity can reach about 30% RH. Humidity and excessive humidity have a direct impact on the effect of paper and book bonding and setting, which can cause various quality problems in wireless glue binding books.
In order to improve the binding quality of books, in the binding workshops, especially those where hot melt adhesive materials such as EVA are used, it is necessary to create a good environment and conditions for standardized production. (to be continued)
Storage and elegant, Masyounger Mobile Shelving creates an exciting look for any high density storage space, keeping your documents or books in perfect working order for easy access. With the great quality wheels, a walk-in space gap will be designed for Mass Shelf. Masyounger mass shelf is customized depending on the space area. Mobile mass shelf are popularly used in government facility and school office.
Mass Shelf
Mass Shelf,Document Storage Shelves,Mobile Shelving,Manual Mass Shelf
Masyounger Office Furniture , http://www.hi-masyounger.com