Bookbinding Standard Revision (Chinese)

IV. Confirmation of the task and time limits for repairs The Standards Committee, after extensively soliciting opinions and harmonizing the principles and guidelines for the revision of the standards, has been held in December 1997 at the Beijing Standard Commission under the guidance of the Department of Printing Industry Administration of the Press and Publications Administration. The committee and related personnel revised the “Book Printing Standards” meeting, discussed and determined the tasks and time limit for repairing the standard, revised the program, and repaired the organization. It was decided that Prof. Lian Jie from China Printing Corporation was the head of the repair team and the implementation of the drafting of the standards. People, standards drafting requirements and styles. In May 1998, the drafting committee and the drafting staff of the standard held special meetings to exchange drafting information, unifying understanding, determining the standard structure to be repaired, and further clarifying the progress of repairs. In June and August 1998, the Standardization Commission twice sent the drafted standards to members of the National Standardization Committee, printing administrations of various provinces, municipalities, and autonomous regions, printing quality inspection stations, large printing companies, and related departments. Ask for opinions. In November 1998, the Standards Committee held a meeting of the representatives of the repairs and repairs, the drafters reported on the revision of the tenders, and they listened to the opinions of the deputies face to face. According to the opinions put forward by the delegates, the drafters amended each one by one. At the beginning of 1999, the manuscript was sent for review and sent to the members of the National Commission of Standards for examination. More than three-quarters of the committee members agreed to the letter, and some also proposed amendments. On this basis, the drafters have made serious amendments to the standards and then submitted reports and submitted drafts.
The revision of the standard took more than one year from the time the decision was made and the completion was completed. The fourth revision was made. The Press and Publication Administration approved on May 7, 1995 and published it in a new technical character [1999] 516 article:
CY/T27-1999 binding quality requirements and test methods - hardcover CY/T28-1999 binding quality requirements and test methods - paperback CY/T29-1999 binding quality requirements and test methods - saddle stitching currently revised standard positive It will be printed by the Secretariat of the National Printing Standardization Technical Committee and will be implemented nationwide on September 1, 1999.
V. Some explanations 1. This time only the binding standards implemented in 1991 have been revised, but the revised content involves two batches of standards implemented around 1995. Considering the integrity, unity and ease of use of the standard, the relevant contents of the last two batches of standards were absorbed by the time. In the process of future publicity, implementation and implementation, the new standard was used as a saw, and the next two batches of standards were revised. At that time, delete the repetitive content or remove the entire standard. The current two batches of standards are temporarily used together.
2. Postpress terminology The term “surface finish” is interpreted as the general term “glazing, masking, rubbing, foiling, embossing, or other decorative processing on book covers or other printed matter.” According to these explanations, The content of CY/T7.7 and CY/T7.8 should be attributed to the scope of surface finishing, and an independent surface finishing standard should be established, but the content of surface finishing not only applies to book binding, but also applies to product packaging and decoration. However, the content experts currently applying to product packaging and decoration have not yet obtained a unified opinion. In order to speed up the progress of the repair and maintain the integrity of the standard, we first absorb the contents of CY/T7.7 and CY/T7.8. If the product has these contents, it shall be carried out according to the requirements in the standard, and if the product does not have such content, it shall be carried out according to the rules, and when the conditions are more mature, an independent surface finishing standard shall be formulated.
3. Members of the Printing Standards Committee and relevant experts have undergone repeated argumentation during the process of revising the standards and have complied with the requirements of the competent authorities - they must adhere to technological progress, make the standards scientific and advanced, and must also be compatible with our country's The combination of specific conditions makes the standard instructive and practical. To this end, the standard was revised on the basis of the conditions of medium and large enterprises. As a quality product standard, no matter how good the company is, as long as it engages in bookbinding, it must meet the requirements of the standard. Due to the differences in geographical location, production scale, product structure, equipment performance, material supply, process routes, personnel quality, and management level of each company, there may be two situations: Some small enterprises temporarily fail to meet the requirements of the standards, and these enterprises must Create conditions. Training talents, strive to meet the requirements of the standard; the other part of the company's software and hardware is better, such companies can develop business standards better than the unemployed standards, so that companies are more competitive.
4. Due to the upgrading and replacement of equipment, the replacement of materials and the improvement of performance, the optimization and improvement of process technology and the standardization and improvement of management standards, including the implementation of standards and standardization work, the quality of printed products in China has been greatly improved. , But there are also unsatisfactory, from the convulsions of bookstores and companies, there are certain problems with product quality, reflected in the quality of the binding more. In view of the existing problems, the printing committee secretariat and related units are prepared to increase the awareness of new standards, improve the quality awareness and knowledge of related personnel, and operational skills, and improve the overall level of books and printed products. This is also the basis for the revision of standards. purpose.

From the perspective of structural characteristics, we look at the application and development of domestic binding equipment. With the rapid development of science and technology, especially the integrated application of computer technology, polymer technology, and optoelectronic technology, modern printing technologies and equipment include prepress processing, printing, and postpress Processing technology and equipment have all developed by leaps and bounds. The same is true of binding technology and equipment used for postpress processing, but in comparison, it is still relatively weak, especially the development of domestically-made binding equipment needs to catch up.
First, the folding machine entered the 1990s, domestic folding machine has changed greatly, from the knife-type folding machine to the main to a fence type, hybrid folding machine based, forming the ZYS440, 660, 780, 940 fence folding machine series and ZYH440, 660, 780, 940 hybrid folding machine series. Taking the ZYS780 fence type folding machine as an example, the four folding units of the ZYS780 are a modular structure that can be separated and combined step by step. The first to fourth folding units can be parallel folded and the four units can be used together. , can be vertical folding, is the beginning of the 90's international level of mechanical and electrical integration products, with automatic tracking, pneumatic program control separation of paper systems, the use of stepless frequency control, quick folding gap adjustment into the steel-rubber combination Straight-line folding rollers and other new technologies and new structures improve folding precision and save adjustment time. Another example is the ZYH660C electronic knife hybrid folding machine. The first folding adopts fence folding, and the second, third and fourth folding uses electronically controlled knife folding. This folding machine combines the advantages of multiple folding styles, a fast folding speed, and a high folding accuracy of a knife folding machine. At present, the hybrid folding machine has become the most important model of the national folding machine.
Second, the automatic sewing machine locks the way there are flat and cross stitching, and flat set is divided into ordinary flat and staggered flat set, which ordinary flat set when the mechanical adjustment is convenient, the lock line speed, is currently the most used lock Line mode. The bookbinding and bookbinding of the sewing machine is good, and the binding quality is high. Therefore, the binding of the sewing thread is a binding method for the hardcover book and the thick paperback book. In recent years, the domestic sewing machine has made new development on the original basis, and there emerged a new generation of sewing machine SXZ440A and SXZ440B automatic sewing machine controlled by a microcomputer. (To be continued)