Commercial form printing equipment and production process (below)
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
Managing equipment should focus on two aspects:
On the one hand, the equipment should be carefully maintained. This is the key to ensuring the good condition of the equipment. Since our factory introduced such equipment from abroad for the first time, its price is also relatively expensive, which has raised the awareness of equipment management and maintenance of the company's leaders and employees, and formed a comprehensive management of equipment, production and technology under the leadership of the factory manager. The management method has changed from the traditional way in the past to the "lifetime" management of equipment; the management function has also changed from purely guaranteed production to product quality as the center to strengthen equipment maintenance. Operators are required to abide by the equipment operating procedures, adhere to the "individual insurance, fixed insurance and full insurance" for the equipment, so that the equipment meets the "four requirements", and the equipment operation and maintenance is included in the piece weight assessment content. In the production process, the operating workers must strictly abide by the operating procedures, and the management organization implements the working methods of the equipment "daily evaluation, weekly inspection, monthly review". It is stipulated that the equipment "daily small insurance, weekend security, monthly comprehensive insurance", led by the workshop director, the assessment team composed of the heads of the foremen will be assessed every class. Take 50% of the wages of the piece as the equipment use and maintenance assessment. According to the five levels of A, B, C, D, E, it is found that the use of unqualified maintenance is deducted according to its severity. Serious violations of equipment maintenance regulations even cancel the same day production. As equipment maintenance and production are linked, equipment maintenance is implemented and production and quality are guaranteed.
On the other hand, we must improve the quality of personnel to achieve the correct use of equipment. To do a good job in on-site management of equipment, the personnel factor is the first. The technical level of production workers and maintenance personnel is not high, and frequent changes in management personnel are unfavorable to the work. Therefore, while pre-employment training for production workers and maintenance personnel, they should also be taught the production process, equipment performance, structure, maintenance, management and other knowledge. For managers, it is necessary to enhance the modern management knowledge through on-the-job training to meet the evolving management needs of the business form machine. After the post training, it is necessary to establish a post responsibility system and implement the management method of "two parts, one insurance and three links". Namely: the production workers participate in maintenance, and the maintenance personnel participate in the production of "two parameters"; to ensure the production of "one insurance"; equipment maintenance and improve product quality, increase production, reduce costs linked to the "triple." Therefore, in the on-site management, a one-stop equipment management of on-site command, post responsibility, economic assessment, and management control is formed, so that production and maintenance can be interconnected and improved, and the high speed, high quality and high of the commercial form machine can be realized. The goal of profitable production.
Second, the business form printing process management
Commercial forms are printed in a wide variety and demanding. In addition to judging products from the perspective of product aesthetics, it is also necessary to check whether the product size is qualified from the processing point of view. Therefore, users should formulate different process requirements according to different printings, strictly control quality, and strictly organize production.
(1) Production methods
According to the size of the production batch, it can be divided into two ways. First, the variety of products, the number of printing varies, the general production process is: web → offset → punch, ridge line → folding → matching page → number → packaging. The second is a large-volume commercial form, the production method is: web → offset printing → punching, ridge line → rewinding → matching page → numbering → tearing a single sheet or making continuous paper.
(2) Production process management
1. Production process: notice → plate making (including: typesetting, imposition, photography, printing) → production material preparation → printing → matching page coding (or tearing a single sheet) → finished product processing factory.
2. Setting of process notice: The process notice is the order of product processing, which includes the number of prints, the type of paper, the quantity, the plate making requirements, and the price. The commercial form printing process notice has its particularity compared to the production notice of a general printed product. In addition to the necessary columns for regular print production notices, necessary process descriptions, such as the number of joints, the method of horizontal and vertical ridges, and the location and arrangement of numbers. The notice should be accompanied by a printed sample, which should be accompanied by a printed copy on the proof sheet to avoid misunderstanding between the orderer and the actual operator.
3. Plate making: Commercial forms are generally used in commercial, banking, transportation, post and telecommunications, enterprises and institutions. Most of these forms have tens of thousands, thousands, hundred, yuan, angles, and points. Therefore, the specifications and specifications for plate making are absolutely accurate. To avoid misregistration or aperture misalignment. When the imposition is made, you can use the "+" word line to mark the position of the ridge line and the hole position, which is convenient for overprinting during printing.
4. Commercial form printing requirements for paper and the environment
(1) Paper requirements: The water content of paper for commercial forms should generally be controlled at 4%-5%, and the paper pulling force should be 3-7kg. Generally, carbonless copy paper is used. In order to ensure the quality of the products, the selection of materials in the production process plays a decisive role in the process of printing products. Because the technical parameters of different manufacturers' papers are different, especially multi-printing, it is difficult to speculate if the negative effects of product quality are used after using different brands of paper. On the one hand, if the paper of multi-vendor is used, the development effect of the carbonless paper is difficult to identify after the problem; on the other hand, the printing products are scrapped because the paper expansion ratio of each manufacturer is not necessarily the same. Therefore, we must pay special attention to the selection of printing materials. It is best to choose one or two manufacturers with relatively reliable quality as long-term partners, which will help the two parties adapt to the paper.
(2) Environmental control: Commercial form printing requires high humidity and temperature requirements, especially for humidity. Usually the temperature should be controlled between 20 ° C and 25 ° C, and the humidity should be controlled between 60% and 80%. When producing in a workshop without constant temperature and humidity, the printed product should be covered with a plastic bag and immediately placed on the page. It should not be placed for a long time to prevent the paper from stretching and affecting the quality of the product due to temperature and humidity changes.
5. Printing
In addition to controlling the ink balance and printing pressure, the commercial computer form printing should clean the PS plate and the blanket in time to ensure that the ink color is basically the same, and more importantly, measure the quality of the product from the processing angle. Because the accuracy of processing directly affects the use of computer form paper.
The processing size of the business form is an important part of quality control. It mainly manifests in the following two aspects: on the one hand, it refers to whether the length between the joint and the joint is the same, which is mainly controlled by the paper tension control device, and is measured by the hole position detecting ruler. Generally, a measuring ruler with a hole or a hole length of 2 m is randomly placed for paper tension measurement, and the tension is corrected in time to maintain the tension stable. On the other hand, is the length of the side hole size standard? Usually the standard computer printing paper has a ridge line (pictured) to the edge of the paper of 0.5 inch, the diameter of the hole is 4mm, and the edge of the hole to the edge of the paper is also 4mm, these dimensions should be kept accurate. Too large or too small size can affect the use of computer paper. If it is too small, the paper edge may be broken, and the paper may be difficult to feed or may not enter. The edge hole size is mainly controlled by the paper edge locator. Other aspects such as the depth of the horizontal ridge, whether the punched paper dust penetrates, etc. will affect the use of computer printing paper, and must be strictly controlled in the production process.
6. Coding with page
When producing multiple business forms, coding and matching is the last step in the production of computer form paper. The coding and matching pages are completed on the collating machine, and the multi-layer continuous form paper is completed by the collating machine. Generally can be equipped with up to 8 links. It works by rotating the sprocket wheel to drive the table hole. To prevent misalignment of the multiple tables, the multiple tables are pressed together by embossing teeth. Other auxiliary equipment, such as cutting sheets, secret envelopes, etc., are added according to market demand.