At present, flexographic printing has risen quietly in China. More and more printing companies have changed from conventional offset printing and gravure printing to flexographic printing. The printed products are also relatively extensive. However, at present, many customers do not have a concept for the type of media they choose to use in order to divide the flexographic plate into carton and plastic bags. In fact, depending on the printing substrate, the type, thickness, hardness, and specifications of the selected media are also different. If you choose proper, it will not only save costs, but also make the quality of the plate. In general, the products currently printed in China mainly include thin films, labels, flexible packaging, and corrugated paper. When printing, the user should select an appropriate plate according to the types of printed materials and printing materials.
1. Plastic film printing
There are many customers currently printing plastic films on the market, and there is an increasing trend. Some users are faced with various brands of plates when printing, and they do not know how to choose the type and thickness of plate they need. The following uses the DuPont plate as an example to briefly introduce this issue.
When the film is printed, as the customer's requirements for product quality are getting higher and higher, the corresponding requirements for printing auxiliary materials are also getting higher and higher, especially for the printing plate selected during printing, the requirements for the dots are clear and the lines are smooth. If you want to choose a high-quality printing plate, DuPont UXL, NOW media is the first choice.
The UXL version is an economical low hardness plate (hardness HS47-57) with excellent exposure latitude. The printing plate used for making high-resolution hierarchical dots and inverted white characters is suitable for most alcoholic inks and water-based inks; the NOW printing plate (hardness HS60-82) is another excellent product constantly improved by DuPont and has excellent resistance. Ozone function. Excellent print lines and text, and the use of the latest resin materials, suitable for high-volume printing. In addition, the thickness of the plate is 1.14mm, 1.70mm, 2.28mm, 1.84mm, etc., which can be selected according to your needs (you should choose 2.28mm thick plate when printing film). In order to meet the requirements of different customers, the suppliers of plate materials provide various sizes of plates to minimize the margin and save costs.
2. Label printing, flexible packaging printing
When printing fine lines, high-resolution hierarchical dots, and anti-white characters, a high-exposure plate should be selected to produce high-quality plates and improve printing quality. DuPont EXL is a high-quality product. One of the preferred plates for printing.
At present, most of the narrow flexographic printing machines in China and the wide flexo printing flexible packaging machines use the DuPont EXL printing plate. The thickness of the selected plate is 1.70mm, and the hardness after platemaking is HS50-60 (the hardness before the plate making is HS28-43). . DuPont EXL Edition is an extremely high-exposure plate. It has excellent results in producing and printing fine lines, hierarchical dots, and reversed white texts. It also eliminates the use of masks for platemaking, allowing you to easily complete platemaking. In addition, there are more specifications for flexo, which can be selected according to your needs. If you need a larger amount of media, you can also customize according to your requirements for a certain size of the media, allowing you to minimize the margin in the plate making, make full use of the limited space, reduce the plate making cost.
3. Corrugated carton printing
At present, in the carton packaging market, it has also been developed from traditional monochrome printing to multi-color printing and even horizontal printing. The requirements for printing have become higher and higher. In the highly competitive market, to improve the printing quality of corrugated boxes, how to choose the printing plate material has become one of the important factors affecting the quality of flexographic printing carton.
DuPont TDR, DRC version is specially used for carton printing, and has various specifications and thickness (2.84-7.0mm). This kind of plate graphic is of deep depth and moderate hardness (TDR version of hardness HS34-41; DRC version of HS37-42, the printing effect is clear and delicate, and the printed text has a superior effect. The 3.94mm thick plate is required for carton printing. Pads are used, 7.0mm thick plate can be directly used for printing, no padding.In addition, when printing high-grade carton using preprinting technology, 2.84mm thick plate is generally used (EXLP version of 2.84mm thick can also be used) material).
4. Printing gloss
When offset printing is used to print some high-grade wine boxes and cigarette packs, it is often necessary to polish them. The traditional method is to use a blanket as a polishing version, but when applying a partial coating, it is necessary to make a glossy version by cutting the blanket. The accuracy can be imagined. In addition, once there is a cut, it will cause the entire blanket to be scrapped, causing great losses. Now DuPont Co., Ltd. has launched a special offset printing version for the CL series to meet the needs of the market. This kind of plate has moderate hardness (hardness after platemaking is HS72-82), and can be installed on the offset printing press for on-line light; the printing plate has smooth lines and fine images, suitable for high-precision local coating, spot coating, and loading The version can be as convenient as a general PS plate or blanket. Its complete specifications, can be arbitrarily chosen according to your needs.
The above discussed several major applications of domestic flexo printing technology and the choice of media. In today’s highly competitive market, it’s only by improving quality that you can win. The correct choice of auxiliary materials is the basis for ensuring the quality of printing. As long as users can make the right choice, they will certainly win a bigger market.
1. Plastic film printing
There are many customers currently printing plastic films on the market, and there is an increasing trend. Some users are faced with various brands of plates when printing, and they do not know how to choose the type and thickness of plate they need. The following uses the DuPont plate as an example to briefly introduce this issue.
When the film is printed, as the customer's requirements for product quality are getting higher and higher, the corresponding requirements for printing auxiliary materials are also getting higher and higher, especially for the printing plate selected during printing, the requirements for the dots are clear and the lines are smooth. If you want to choose a high-quality printing plate, DuPont UXL, NOW media is the first choice.
The UXL version is an economical low hardness plate (hardness HS47-57) with excellent exposure latitude. The printing plate used for making high-resolution hierarchical dots and inverted white characters is suitable for most alcoholic inks and water-based inks; the NOW printing plate (hardness HS60-82) is another excellent product constantly improved by DuPont and has excellent resistance. Ozone function. Excellent print lines and text, and the use of the latest resin materials, suitable for high-volume printing. In addition, the thickness of the plate is 1.14mm, 1.70mm, 2.28mm, 1.84mm, etc., which can be selected according to your needs (you should choose 2.28mm thick plate when printing film). In order to meet the requirements of different customers, the suppliers of plate materials provide various sizes of plates to minimize the margin and save costs.
2. Label printing, flexible packaging printing
When printing fine lines, high-resolution hierarchical dots, and anti-white characters, a high-exposure plate should be selected to produce high-quality plates and improve printing quality. DuPont EXL is a high-quality product. One of the preferred plates for printing.
At present, most of the narrow flexographic printing machines in China and the wide flexo printing flexible packaging machines use the DuPont EXL printing plate. The thickness of the selected plate is 1.70mm, and the hardness after platemaking is HS50-60 (the hardness before the plate making is HS28-43). . DuPont EXL Edition is an extremely high-exposure plate. It has excellent results in producing and printing fine lines, hierarchical dots, and reversed white texts. It also eliminates the use of masks for platemaking, allowing you to easily complete platemaking. In addition, there are more specifications for flexo, which can be selected according to your needs. If you need a larger amount of media, you can also customize according to your requirements for a certain size of the media, allowing you to minimize the margin in the plate making, make full use of the limited space, reduce the plate making cost.
3. Corrugated carton printing
At present, in the carton packaging market, it has also been developed from traditional monochrome printing to multi-color printing and even horizontal printing. The requirements for printing have become higher and higher. In the highly competitive market, to improve the printing quality of corrugated boxes, how to choose the printing plate material has become one of the important factors affecting the quality of flexographic printing carton.
DuPont TDR, DRC version is specially used for carton printing, and has various specifications and thickness (2.84-7.0mm). This kind of plate graphic is of deep depth and moderate hardness (TDR version of hardness HS34-41; DRC version of HS37-42, the printing effect is clear and delicate, and the printed text has a superior effect. The 3.94mm thick plate is required for carton printing. Pads are used, 7.0mm thick plate can be directly used for printing, no padding.In addition, when printing high-grade carton using preprinting technology, 2.84mm thick plate is generally used (EXLP version of 2.84mm thick can also be used) material).
4. Printing gloss
When offset printing is used to print some high-grade wine boxes and cigarette packs, it is often necessary to polish them. The traditional method is to use a blanket as a polishing version, but when applying a partial coating, it is necessary to make a glossy version by cutting the blanket. The accuracy can be imagined. In addition, once there is a cut, it will cause the entire blanket to be scrapped, causing great losses. Now DuPont Co., Ltd. has launched a special offset printing version for the CL series to meet the needs of the market. This kind of plate has moderate hardness (hardness after platemaking is HS72-82), and can be installed on the offset printing press for on-line light; the printing plate has smooth lines and fine images, suitable for high-precision local coating, spot coating, and loading The version can be as convenient as a general PS plate or blanket. Its complete specifications, can be arbitrarily chosen according to your needs.
The above discussed several major applications of domestic flexo printing technology and the choice of media. In today’s highly competitive market, it’s only by improving quality that you can win. The correct choice of auxiliary materials is the basis for ensuring the quality of printing. As long as users can make the right choice, they will certainly win a bigger market.
Enamel Stock Pot Co., Ltd. , http://www.nskitchenwares.com