As one of the most important printing technologies in the 21st century, flexo printing technology, which represents the trend of the packaging and printing world, has been rapidly developed abroad. Especially in the printing of packaging materials, flexographic printing has a tendency to exceed lithographic and gravure printing in terms of market share in the printing field of the packaging industry. Compared with gravure printing, it not only reduces the cost of plate-making, shortens the plate-making cycle, but also has almost the same image quality. Compared with offset printing, it not only greatly increases the types of substrates, but also solves the problem of chromatic aberration of offset printing. Especially the non-toxic water-based ink used in flexo printing is beyond the reach of gravure and offset printing. Therefore, it is widely used in food and medicine packaging.
Flexographic printing focuses on the characteristics of the three printing processes of flat, concave and AE port in the aspects of pre-press negative film production, supply method and printing method. The flexibility of the printing plate is similar to printing blanket and printing. The contact of the printing material, the ink transfer performance and the flexographic version are letterpress, which has the characteristics of relief printing; no water, direct printing; the ink layer is separated only once. Printing speed and product quality are basically the same as gravure printing. Flexo printing gathers the strengths of the three, avoids the shortcomings of the three, and quickly rises to become a new printing process with a faster growth rate. High-precision color printing crystals with 150 lines, 6-8 colors or more are very suitable. The thickness of the ink layer of the printed matter makes the product rich in layers and bright in color, which is especially suitable for packaging and printing. In particular, unit-type flexographic direct printing (post-printing) is a low-cost, high-quality carton printing solution with the following characteristics:
Flexible printing, light plate material, light printing pressure;
The flexographic printing can take into account pictures, texts, pictures and texts together, pictures and texts are clear, ink color gloss;
The flexible version is soft, flexible and has good ink transfer performance. The printing material has a wide range of applications;
Low scrap rate and low cost;
No matter the size of the carton, the thickness is formed in one piece;
The flexible plate has high flatness, short plate-setting time and fast speed. Quick and low-cost order exchange;
Simple operation method of process flow;
The flexographic printing machine has a simple structure and adopts a short ink inking system, with low investment, large output and high return;
It is an environmentally friendly and energy-saving printing method, which provides technical support for the upgrading of carton packaging.
At present, the printing of electrical packaging corrugated boxes is mainly based on flexo printing. The printed boards are mainly divided into resin and rubber boards. The price of resin boards per square meter is generally between 2,200 yuan and 3,500 yuan. For two-color to four-color printing, the cost of a set of packaging carton plates is generally between 4000 yuan and 8000 yuan.
Ink and UV varnish ensure exquisite printing, and the fine corrugated packaging has a good pressure bearing. Therefore, it has a very strong color expression, coupled with the high stability of whiteboard paper on gray background, so it can ensure the printing adaptability well. . It adopts four-color and five-color printing, with exquisite patterns and bright colors, with strong visual effects, and the excellent printing results highlight the quality of the content. In order to ensure the quality of printing, the Swiss Sikbai, which has good wear resistance, is used. Dongfang Weishi water-based ink and coated with UV varnish to protect printing.
Unit type and satellite type are the two most important types. Compared with the unit type, the satellite-type flexo printing machine has higher overprint accuracy. Satellite flexo printing machines have been successfully used in the preprinting of corrugated boxes. At present, the main carton preprint manufacturers come from companies such as Biruni and Serrudi of Italy, PCMC and Feva of the United States, WOH and F & K of Germany. Compared with the traditional color carton production method, the advantages of pre-printed production methods are: high production efficiency, the maximum mechanical speed can reach 200m / min ~ 300m / min; ② the color difference of pre-printed color carton production is very small, pre-printed High quality, accurate overprinting, bright colors, rich levels; ③Can obtain large-format multi-color color printing; ④More suitable for batch long work; ⑤Corrugated cardboard boxes produced by preprinting have higher strength and good flatness . At present, there are only a few domestic manufacturers to carry out carton preprinting production, but carton preprinting abroad is already a very mature process.
Of course, any printing method must have its development reasons and unique advantages that others cannot replace. Manufacturers only need to choose which printing method is more appropriate according to their product characteristics and give full play to the advantages of flexo printing. A philosopher once said: There is no best choice in the world, the best method, only a more suitable choice and a more suitable method in comparison.
Flexographic printing focuses on the characteristics of the three printing processes of flat, concave and AE port in the aspects of pre-press negative film production, supply method and printing method. The flexibility of the printing plate is similar to printing blanket and printing. The contact of the printing material, the ink transfer performance and the flexographic version are letterpress, which has the characteristics of relief printing; no water, direct printing; the ink layer is separated only once. Printing speed and product quality are basically the same as gravure printing. Flexo printing gathers the strengths of the three, avoids the shortcomings of the three, and quickly rises to become a new printing process with a faster growth rate. High-precision color printing crystals with 150 lines, 6-8 colors or more are very suitable. The thickness of the ink layer of the printed matter makes the product rich in layers and bright in color, which is especially suitable for packaging and printing. In particular, unit-type flexographic direct printing (post-printing) is a low-cost, high-quality carton printing solution with the following characteristics:
Flexible printing, light plate material, light printing pressure;
The flexographic printing can take into account pictures, texts, pictures and texts together, pictures and texts are clear, ink color gloss;
The flexible version is soft, flexible and has good ink transfer performance. The printing material has a wide range of applications;
Low scrap rate and low cost;
No matter the size of the carton, the thickness is formed in one piece;
The flexible plate has high flatness, short plate-setting time and fast speed. Quick and low-cost order exchange;
Simple operation method of process flow;
The flexographic printing machine has a simple structure and adopts a short ink inking system, with low investment, large output and high return;
It is an environmentally friendly and energy-saving printing method, which provides technical support for the upgrading of carton packaging.
At present, the printing of electrical packaging corrugated boxes is mainly based on flexo printing. The printed boards are mainly divided into resin and rubber boards. The price of resin boards per square meter is generally between 2,200 yuan and 3,500 yuan. For two-color to four-color printing, the cost of a set of packaging carton plates is generally between 4000 yuan and 8000 yuan.
Ink and UV varnish ensure exquisite printing, and the fine corrugated packaging has a good pressure bearing. Therefore, it has a very strong color expression, coupled with the high stability of whiteboard paper on gray background, so it can ensure the printing adaptability well. . It adopts four-color and five-color printing, with exquisite patterns and bright colors, with strong visual effects, and the excellent printing results highlight the quality of the content. In order to ensure the quality of printing, the Swiss Sikbai, which has good wear resistance, is used. Dongfang Weishi water-based ink and coated with UV varnish to protect printing.
Unit type and satellite type are the two most important types. Compared with the unit type, the satellite-type flexo printing machine has higher overprint accuracy. Satellite flexo printing machines have been successfully used in the preprinting of corrugated boxes. At present, the main carton preprint manufacturers come from companies such as Biruni and Serrudi of Italy, PCMC and Feva of the United States, WOH and F & K of Germany. Compared with the traditional color carton production method, the advantages of pre-printed production methods are: high production efficiency, the maximum mechanical speed can reach 200m / min ~ 300m / min; ② the color difference of pre-printed color carton production is very small, pre-printed High quality, accurate overprinting, bright colors, rich levels; ③Can obtain large-format multi-color color printing; ④More suitable for batch long work; ⑤Corrugated cardboard boxes produced by preprinting have higher strength and good flatness . At present, there are only a few domestic manufacturers to carry out carton preprinting production, but carton preprinting abroad is already a very mature process.
Of course, any printing method must have its development reasons and unique advantages that others cannot replace. Manufacturers only need to choose which printing method is more appropriate according to their product characteristics and give full play to the advantages of flexo printing. A philosopher once said: There is no best choice in the world, the best method, only a more suitable choice and a more suitable method in comparison.
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