In recent years, due to the widespread adoption of water-based printing slotting machines for carton printing by carton manufacturers, the market for water-based printing slot machines has been rapidly developed. The demand for equipment by large, medium and small carton manufacturers is determined by the products, the size of the company, and the economic strength of the company. Therefore, companies that produce packaging and printing machinery must treat them separately, striving to satisfy the requirements of large-scale enterprises to produce high-grade carton products, and to meet the requirements of medium and low-grade cartons produced by small and medium-sized enterprises, and to achieve the full development of high-, medium-, and low-grade products.
Market Positioning of Printing Slotting Machines
First, middle and low-end products meet the small and medium carton enterprises. Most small and medium-sized enterprises are third-class factories. They mainly purchase paperboard production cartons. They have a single product, small batch size and little color. Most of them choose to purchase monochromatic or two-color water-based printing slotting machines or printing machines without slotting, and generally choose A lower-priced manual chain or electric chain machine can meet the demand. Even if some companies purchase three-color water-based printing slot machines, they still choose manual or electric motors. Although the speed of school editions and vehicles is relatively slow, they have a wide market because of the actual production conditions of the third-class plants. Second, high-end products meet large enterprises. Large-scale carton manufacturers have annual sales of more than 100 million yuan, large-scale enterprises, complex product structures, large product varieties and specifications, large quantities, and high quality requirements. Most of the customers are well-known domestic production enterprises, and their needs are welcomed by consumers. High-grade carton. Therefore, high-speed, high-precision, fully automatic water-based printing slotting machines or water-based printing die-cutting machines are generally used to meet the requirements of accurate color registration, vivid colors, strong sense of reality, and beautiful cable appearance, so that the packaging box matches the product.
Development trend of water-based printing slotting machine
At present, advanced countries such as the United States, Japan, France, Italy, Germany and other carton production achieved two dragon production processes, while China currently only achieved a one-stop production process. For example, the corrugated paperboard production line only merges several previously lagging processes into a corrugated paperboard production line process, basically achieving continuous production after the merger, and the quality of the paperboard has been improved. The production of the previous process of the corrugated board production line basically achieved mechanization, but the subsequent process is still divided into several processes such as printing, slotting, slitting, nailing, and packaging. Although the water-based printing slotting machine solves printing, slotting, slitting, die-cutting, and nail box, the package still needs to be separated. At present, after the process of one-stop production technology in China has not yet developed successfully, the equipment basically relies on imports. Therefore, the process after the water-based printing slotting machine is the focus of future development. The development trend is to research and develop printing, die-cutting, sticking boxes, and bundling one-stop production processes to achieve automation and continuous production.
Corrugated box ink printing process
Common problems and solutions
First, printing ghosts and leaks. This is two problems that often occur in the production process. Ghosting around the printed pattern or text is caused by excessive pressure on the anilox roll and the printing plate; ghosting occurs on the front edge of the printing because of excessive pressure between the printing cylinder and the embossing roll; Area printing through the bottom, missing white is due to the pressure of the printing roller and the imprinting roller is not enough. To solve the problem of printing ghosts, the gap and pressure between the anilox roller and the plate roller should be adjusted (commonly called upper pressure). The ghosting is due to the excessive pressure, the anilox roller squeezes the printing plate (referring to the flexographic plate) deformation, so to increase the gap between the two rollers, reduce the pressure accordingly; to solve the problem of printing leakage should adjust the plate roller and the imprinting roller The gap and pressure (commonly known as downforce). Since the gap between the plate roller and the embossing roller is too large, the printing in a large area may be untrue, which requires an increase in downforce. In addition, the unevenness of the printing plate, the quality of the plate lining, the hardness of the plate, etc. will all affect the above-mentioned problems, and local adjustments should be made.
Second, multicolor printing overprinting is not allowed. This is also a common problem in the printing industry. It is due to a variety of factors, including the position and accuracy of the multi-color printing slotting machine itself, the adjustment of the feeding roller and the pulling roller, the use of the traction belt, the accuracy of the printing plate arrangement, and the warpage of the cardboard. Has a direct effect on overprinting effects. To solve the problem of inaccurate overprinting of multi-color printing, first, the roller portion of each color should be slightly larger than the previous one so as to equalize the pressure exerted on all the colors; second, pay attention to adjust the front of each printing machine. Both the feed roller and the traction roller have clearances and positions, especially when the width of the paperboard is too narrow. In case of local color registration, two traction belts should be added at the edge of each printing plate to ensure that the cardboard transitions smoothly during the printing process; furthermore, due to the different degree of warping of corrugated cardboard, if necessary, the cardboard should be replaced again. smooth.
Market Positioning of Printing Slotting Machines
First, middle and low-end products meet the small and medium carton enterprises. Most small and medium-sized enterprises are third-class factories. They mainly purchase paperboard production cartons. They have a single product, small batch size and little color. Most of them choose to purchase monochromatic or two-color water-based printing slotting machines or printing machines without slotting, and generally choose A lower-priced manual chain or electric chain machine can meet the demand. Even if some companies purchase three-color water-based printing slot machines, they still choose manual or electric motors. Although the speed of school editions and vehicles is relatively slow, they have a wide market because of the actual production conditions of the third-class plants. Second, high-end products meet large enterprises. Large-scale carton manufacturers have annual sales of more than 100 million yuan, large-scale enterprises, complex product structures, large product varieties and specifications, large quantities, and high quality requirements. Most of the customers are well-known domestic production enterprises, and their needs are welcomed by consumers. High-grade carton. Therefore, high-speed, high-precision, fully automatic water-based printing slotting machines or water-based printing die-cutting machines are generally used to meet the requirements of accurate color registration, vivid colors, strong sense of reality, and beautiful cable appearance, so that the packaging box matches the product.
Development trend of water-based printing slotting machine
At present, advanced countries such as the United States, Japan, France, Italy, Germany and other carton production achieved two dragon production processes, while China currently only achieved a one-stop production process. For example, the corrugated paperboard production line only merges several previously lagging processes into a corrugated paperboard production line process, basically achieving continuous production after the merger, and the quality of the paperboard has been improved. The production of the previous process of the corrugated board production line basically achieved mechanization, but the subsequent process is still divided into several processes such as printing, slotting, slitting, nailing, and packaging. Although the water-based printing slotting machine solves printing, slotting, slitting, die-cutting, and nail box, the package still needs to be separated. At present, after the process of one-stop production technology in China has not yet developed successfully, the equipment basically relies on imports. Therefore, the process after the water-based printing slotting machine is the focus of future development. The development trend is to research and develop printing, die-cutting, sticking boxes, and bundling one-stop production processes to achieve automation and continuous production.
Corrugated box ink printing process
Common problems and solutions
First, printing ghosts and leaks. This is two problems that often occur in the production process. Ghosting around the printed pattern or text is caused by excessive pressure on the anilox roll and the printing plate; ghosting occurs on the front edge of the printing because of excessive pressure between the printing cylinder and the embossing roll; Area printing through the bottom, missing white is due to the pressure of the printing roller and the imprinting roller is not enough. To solve the problem of printing ghosts, the gap and pressure between the anilox roller and the plate roller should be adjusted (commonly called upper pressure). The ghosting is due to the excessive pressure, the anilox roller squeezes the printing plate (referring to the flexographic plate) deformation, so to increase the gap between the two rollers, reduce the pressure accordingly; to solve the problem of printing leakage should adjust the plate roller and the imprinting roller The gap and pressure (commonly known as downforce). Since the gap between the plate roller and the embossing roller is too large, the printing in a large area may be untrue, which requires an increase in downforce. In addition, the unevenness of the printing plate, the quality of the plate lining, the hardness of the plate, etc. will all affect the above-mentioned problems, and local adjustments should be made.
Second, multicolor printing overprinting is not allowed. This is also a common problem in the printing industry. It is due to a variety of factors, including the position and accuracy of the multi-color printing slotting machine itself, the adjustment of the feeding roller and the pulling roller, the use of the traction belt, the accuracy of the printing plate arrangement, and the warpage of the cardboard. Has a direct effect on overprinting effects. To solve the problem of inaccurate overprinting of multi-color printing, first, the roller portion of each color should be slightly larger than the previous one so as to equalize the pressure exerted on all the colors; second, pay attention to adjust the front of each printing machine. Both the feed roller and the traction roller have clearances and positions, especially when the width of the paperboard is too narrow. In case of local color registration, two traction belts should be added at the edge of each printing plate to ensure that the cardboard transitions smoothly during the printing process; furthermore, due to the different degree of warping of corrugated cardboard, if necessary, the cardboard should be replaced again. smooth.
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