Printing companies form a standardized production model, which not only saves time, but also contributes to the improvement of printing quality.

With regard to standardization, some people will feel familiar and unfamiliar. Familiarity is because the current media always use “standardization” to advertise for enterprises. People are already familiar with this; strangeness is because some people have only heard of standardization and have not been in contact with it. Therefore, the name is still unfathomable. In fact, standardization has always been around everyone. The red light stops at the green light. This is the most familiar standard and it is also a standard that people must follow.

The purpose of printing standardization

The first is simplification. With the constant complexity of human life, modern standardization may first of all consider simplification. For the printing industry, all aspects of printing production are modeled to simplify the complex workflow.

The second is using standards as a means of communication. The first original task of the standard is to provide communication between the printing company and the customer. List the size and properties of the desired sample. Enhance customer trust. To enable them to believe in quality and reliability when receiving prints that meet the standards. In addition, current printing companies generally receive a uniform job format, which accelerates the communication between each other.

The third is to protect the interests of consumers. Protecting the interests of consumers is undoubtedly one of the most important goals of standardization. According to the standard production of printed matter, its quality can be guaranteed. To meet the needs of consumers.

The role of printing standardization

1. The main function of standards in the field of printing production and circulation. The main functions of the standard in the printing production and circulation (the main role played) can be roughly divided into two categories: First, as the technical basis in the print production process. Printing companies should organize production according to the standards of print products to regulate and restrict all their production activities. The second is as a technical basis for delivery and acceptance. The customer needs to check the received printed matter. When the acceptance result is inconsistent with the corresponding standard, the supplier and the buyer will negotiate and resolve it.

In general, the technical basis for print production mainly comes from the technical basis of delivery and acceptance: the technical basis for delivery and acceptance, which mainly comes from the customer's use requirements. If a printing company wants to be flexible enough to adapt to the increasingly fierce and rapidly changing market competition, they should use the public or international standard with good generality and coverage as the technical basis for delivery and acceptance, and the technical level. Corporate standards that are higher than open standards are used as the technical basis for organizing print production. In this way they can better adapt to the needs of market competition.

2. The main role of printing standards in the production process. The first is to facilitate the convergence and coordination of technology in all aspects of print production. Printing production requires a series of complicated processes such as design, prepress production processing, printing, and postpress processing. Only the design meets the printing standard, and prepress processing meets the requirements of various parameters. Only in this way can print production be carried out in an orderly manner and print products that meet the requirements of the standard can be printed. The second is to help print quality control. Standards are an important measure of print quality. Today's customers are increasingly demanding the quality of printed matter, especially packaging printing is very strict on the color requirements. The establishment of the standard makes the document's rapid processing and copying a basis. Avoid clutter. There are requirements for printing parameters during the printing process, and the printing quality is guaranteed. The third is conducive to improving the market competitiveness of enterprises. The formulation of the standard allows a common language between the printing company and the customer to enhance communication with each other. At the same time, it can also communicate well with overseas customers. It is conducive to expanding overseas markets and enhancing the market competitiveness of enterprises. The fourth is to help save raw materials and improve production efficiency. The formulation of standards will enable each process of printing production to have a set of parameters that meet the requirements and establish a model operation. This will reduce the error rate, shorten the debugging time of the printing machine, and save raw materials, so as to control the production cost and increase the product qualification rate. purpose. With guidelines for printing workflows, it is easy to identify the root causes of problems, increase efficiency, and increase production efficiency.

Printing standardization and improving quality

There is a definition that print quality is the combined effect of various appearance characteristics of prints. Such as print tone and color reproduction faithful to the original ink thick, uniform, good gloss, text does not spend, high-definition, overprint accuracy, no ghosting, through the print, all kinds of bars, the back of dirty and mechanical traces.

And it was pointed out. The above definition of print quality is not accurate enough. From the point of view of copying technology, the quality of printed matter should be defined as faithfulness to the copying of the original.” The author believes that this definition method should be used for the study of print copying process and the evaluation of various stages of print copying. The quality has a certain practical significance.

Today's printing companies hope to print a standardized production model. This will not only save time, but also contribute to the improvement of printing quality. The printing process from the receipt of the original to the final publication, which will undergo material collection, prepress graphic processing, film output, spell printing, printing, post-press processing and binding processes. The realization of printing standardization and dataization is an advantageous guarantee for printing quality.

1. Standardization of prepress data exchange formats.

This standard mainly stipulates the structure and technical requirements of different data formats used for cross-platform delivery of cross-platform information in the printing and publishing industry. Currently such standards include data exchange formats such as TIFF/IT, PDFIX, and JDF. The standardization of data exchange format makes the communication between printing companies, printing companies and customers unobstructed.

2. Film output standardization. Film is the basis of printing. If the film quality is not good, it is difficult to guarantee the quality of the final print. At present, the vast majority of printing plants have formed a standardized, data-based production model for film output. However, in actual work, due to factors such as the quality of personnel, equipment stability, and management systems, some aspects do not truly reflect standardization. The connotation of data. For example, some printing plants have a relatively large amount of output per day. When the developing liquid is fresh, the output film is relatively normal. As the output of the film increases, the concentration of the developer gradually decreases, and the developing quality of the film also decreases. Then fell. Due to the heavy workload, operators often do not handle the task in order to ensure that the task is completed on time. Or simply add a certain amount of developer directly to the developer tank. continue working. Some operators even take the method of increasing the development and fixing temperature to speed up the development. To complete production tasks on time.

The above-mentioned non-standardized punching links are the main reasons affecting the film output quality. therefore. The printing plant should be based on its actual situation. according to. Quality requirements determine the various parameters of the film. Generate a standardized set of data. In this way, the operator can guarantee the quality of the film based on the implementation of standard data in production.

3. Standardization of imposition and printing. The standardization and dataization of imposition are easier to implement. Simply draw the standard imposition coordinates. Composers can follow the sample construction. However, in the actual production, printing may affect the implementation of its standardization due to certain factors. For example, some printing plants have heavy print jobs. Workshop to ensure timeliness. Only at the expense of quality. On the one hand to extend the exposure time. To achieve the purpose of dirt: on the other hand increase the concentration of developer. Speed ​​up the development speed. To increase production speed. therefore. After the print version, the small outlets are lost. Affect graphic printing quality. the author thinks. Shaiban standardization, data realization as long as the print quality control bar measured standard exposure time and development time. Operators produce strictly according to requirements under any working conditions. There will definitely be no problem.

At present, many printing plants already use CTP systems. Omit film output and printing process. but. The principle of its standardization still exists. CTP plate making also requires the printing plant to determine the exposure intensity, rotation speed, and focal length of the CTP platemaking standard as well as the various development parameters of the plate processor according to the plate quality measurement and control bar, and then strictly follow the requirements. Guarantee plate quality.

4. The printing process is standardized. The control of the printing process is the most complicated factor involved in the entire printing process. The performance and quality of the raw materials used. Overprinting, printing pressure, and the printing environment will affect the standardization of the printing process.

(I) Raw materials. Raw materials are the basis for print production. during production. Use the same type of photosensitive material as the same manufacturer. PS version, paper, ink and other raw materials. To ensure the consistency of platemaking and printing parameters. Provides a data foundation for color reproduction. For example, the provisions of national standards. The field density values ​​of Y, M, C, and K in newspaper printing are 0.60 to 0.80, 0.90 to 1.10, respectively. 0 to 1.20, 1.0 to I. 30. This is a broad standard provision. This is because different printing densities result from the different raw materials used in the newspaper printing plants. But for the newspaper printing industry itself. It should be based on the use of the film factory, PS version, paper, ink, the nature of a set of more stringent standards to control the printing quality. Once the raw materials are replaced. The original standard data should be reformulated. To ensure that you get the same high quality prints.

(2) Balance of ink and wash. The principle of offset printing is ink and water balance. therefore. Controlling the ink balance is the basis of offset printing. Large amount of ink. Inevitably require more water. Otherwise it will paste version: a small amount of ink. Inevitably require less water. otherwise. The layout is gray. therefore. Mastering the right amount of ink and water is the key to offset printing.

(3) Overprint. When evaluating the quality of prints. One of our two most commonly used standards is color ones that are overprints. Whether or not the overlay is accurate is the most direct expression of the quality of the printed matter. The general requirement for accurate printing is not limited to the different colors on a print. In addition, the same standards should be used to ensure that the same printed matter is printed on both sides of the same printed matter.

From the point of view of the workflow, almost every link will become the source of overprinting, making printing process inevitably overprint error. Therefore must determine a standard. Exceeds the standard range as a defective product. Industry standard regulations. Offset tolerance of fine prints in offset printing ≤ 0.10mm: Overprint tolerance of normal prints ≤ 0.20mm. Newspaper printing due to speed. Its overprint error should be within 0.3 row.

(4) Printing pressure. The right printing pressure is the prerequisite for ensuring the smooth printing. Too much pressure. Network distortion: too little pressure. The outlets are empty. The standardization of the printing pressure is achieved by measuring the printing pressure in normal operation. Previously older printers used pressure "fuse" and "spacing gauges" to measure pressure. The current machine simply measures the paper thickness with a vernier caliper. And enter the data into the computer. The pressure can be automatically adjusted.

(5) Printing environment. Printing has higher requirements for ambient temperature and humidity. Temperature and humidity are too high or too low. Will have a certain influence on the printability of paper and ink. and. There are many advanced equipments that have very strict requirements on the ambient temperature and humidity. The temperature of the printing shop is generally controlled at 23±5°C. Relative humidity control is suitable from 50% to 75%.

Only strictly control printing production in the above aspects. The standardization of printing can be realized in actual production. Effectively improve the printing quality of printed products.

With the continuous development of international trade. The increasingly fierce market competition. Standardization has increasingly attracted widespread attention from all walks of life. The relationship between printing standardization and quality is tight