The biggest difference from the offset printing preprinting process is that after the web is preprinted, the upper corrugated paperboard roll is directly applied to the roll surface, and the lower board is slotted/die-cut/glued and molded on the cardboard box. All the equipments are equipped with three equipments, which means fewer processes, high efficiency, safety and environmental protection. The two satellite preprinting machines (W&H and Belloni) introduced in the country are operating normally and represent the cutting-edge process for high-end color box production.
However, the advantages of flexographic preprinting have turned into a commercial advantage. Since the satellite web flexographic printing press has not yet been domesticated, the high price is a bottleneck that hinders the carton maker from investing. The Belloni six-color machine used the World Bank loan, and the W&H eight-color machine took two years to finally install. It can be seen that capital investment is not easy for the carton factory. The new technology is hopeless and unstoppable. The domestic carton preprinted in 2003 seeks new changes.
Gravure preprinting and flexo printing According to statistics, after corrugated cartons flexo printing accounted for 60% of North American carton packaging, preprinting accounted for 35%, showing an upward trend. The share of conventional offset (A, C, B) cartons is minimal, but in recent years, with the introduction of direct offset printing technology for corrugated cardboard by Roland and KBA, mini-corrugated cartons have begun to dominate the carton market. The proportion of high-end color boxes in Europe and Japan is even higher. According to Chinese consumers' appreciation and consumption habits, it is easier to absorb buyers with good color and delicate packaging. This is the reason why offset printing has long occupied the corrugated box market, and it is also the entry point for packaging industry to switch to the pre-printing of gravure webs.
Foreign printer manufacturers such as Bobst, Cerruti and W&H have been focusing on the development of flexo-printing, pre-printing and narrow-thick-thick-paper printing machines. Blanket blanking machines used for carton printing are basically blank. The high cost of the gravure plate steel plate roller is one of the main reasons restricting the development of the gravure preprinting. The cost of the plate roller is 900 euros per color. The color of the packing box is rich and the edition is limited. The gravure is pre-printed in the European market of Sungyo Kobayashi. It's not economical. The popularity of the domestic laser platemaking industry paves the way for intaglio preprinting, and the fee for nearing the price of the soft plate makes the carton plant more flexible in the printing process. With the emergence of corporate groups and national brands, large quantities of long version Printing makes product packagers applaud for the concept of gravure preprinting.
Paper concave machine users have strong flexibility, can not only undertake carton pre-printing, but also print cartridges, Tetra Pak, cigarette packets and decorative paper and other packaging products.汕樟Light machine is an early attempt to develop a paper concave machine in China. In 2001, the first gravure preprinting machine was installed by Zhejiang Tongtianxing Group to solve the high-grade color carton packaging required for the export of Luzhou orange specialty products to Canada and local commercialization.
While the price of ponkan oranges has increased by 30%, the loss of transportation has been reduced by 25%. The Group has now drafted a second intaglio printing machine.汕樟 汕樟 light machine for Taiwan South Asia Group, a pearl film preprinting machine and carton preprinting principle is the same, this device will be shipped to South Asia in the United States carton factory, the production process is slightly different, it is in strength The color pattern is printed on the pearl film with excellent bursting resistance, and then the film is compounded on the cardboard paper, preferably by die-cutting.
The cost-effectiveness is better than offset gravure printing is direct imprinting, that is, the printing roller and the substrate are rolled under pressure, and the image transfer is rapidly generated. The gravure printing ink layer is thick, the dots are fine, and the exquisite degree is almost equal to the offset printing. The gravure preprinting does not have to worry about the quality of the printed product. However, the gravure preprinting process is absolutely superior to the offset printing in terms of carton strength. Experiments have shown that the strength of the pre-printed carton is higher by 10% than that of a similar weighted paper distribution structure. The offset sheet is printed on the corrugated board and the corrugated board is affixed. The gluing machine uses cold glue. When the pressure roller presses the board, it will press down the corrugation peak and reduce the compressive strength and stacking strength of the corrugated box. The loss of offset strength can reduce the weight of the corresponding paper and maintain the required strength when pre-printing the structure for gravure printing. The base paper generally accounts for 60% of the total cost of the carton. Lowering the grammage can reduce the cost by 10%. (To be continued)
However, the advantages of flexographic preprinting have turned into a commercial advantage. Since the satellite web flexographic printing press has not yet been domesticated, the high price is a bottleneck that hinders the carton maker from investing. The Belloni six-color machine used the World Bank loan, and the W&H eight-color machine took two years to finally install. It can be seen that capital investment is not easy for the carton factory. The new technology is hopeless and unstoppable. The domestic carton preprinted in 2003 seeks new changes.
Gravure preprinting and flexo printing According to statistics, after corrugated cartons flexo printing accounted for 60% of North American carton packaging, preprinting accounted for 35%, showing an upward trend. The share of conventional offset (A, C, B) cartons is minimal, but in recent years, with the introduction of direct offset printing technology for corrugated cardboard by Roland and KBA, mini-corrugated cartons have begun to dominate the carton market. The proportion of high-end color boxes in Europe and Japan is even higher. According to Chinese consumers' appreciation and consumption habits, it is easier to absorb buyers with good color and delicate packaging. This is the reason why offset printing has long occupied the corrugated box market, and it is also the entry point for packaging industry to switch to the pre-printing of gravure webs.
Foreign printer manufacturers such as Bobst, Cerruti and W&H have been focusing on the development of flexo-printing, pre-printing and narrow-thick-thick-paper printing machines. Blanket blanking machines used for carton printing are basically blank. The high cost of the gravure plate steel plate roller is one of the main reasons restricting the development of the gravure preprinting. The cost of the plate roller is 900 euros per color. The color of the packing box is rich and the edition is limited. The gravure is pre-printed in the European market of Sungyo Kobayashi. It's not economical. The popularity of the domestic laser platemaking industry paves the way for intaglio preprinting, and the fee for nearing the price of the soft plate makes the carton plant more flexible in the printing process. With the emergence of corporate groups and national brands, large quantities of long version Printing makes product packagers applaud for the concept of gravure preprinting.
Paper concave machine users have strong flexibility, can not only undertake carton pre-printing, but also print cartridges, Tetra Pak, cigarette packets and decorative paper and other packaging products.汕樟Light machine is an early attempt to develop a paper concave machine in China. In 2001, the first gravure preprinting machine was installed by Zhejiang Tongtianxing Group to solve the high-grade color carton packaging required for the export of Luzhou orange specialty products to Canada and local commercialization.
While the price of ponkan oranges has increased by 30%, the loss of transportation has been reduced by 25%. The Group has now drafted a second intaglio printing machine.汕樟 汕樟 light machine for Taiwan South Asia Group, a pearl film preprinting machine and carton preprinting principle is the same, this device will be shipped to South Asia in the United States carton factory, the production process is slightly different, it is in strength The color pattern is printed on the pearl film with excellent bursting resistance, and then the film is compounded on the cardboard paper, preferably by die-cutting.
The cost-effectiveness is better than offset gravure printing is direct imprinting, that is, the printing roller and the substrate are rolled under pressure, and the image transfer is rapidly generated. The gravure printing ink layer is thick, the dots are fine, and the exquisite degree is almost equal to the offset printing. The gravure preprinting does not have to worry about the quality of the printed product. However, the gravure preprinting process is absolutely superior to the offset printing in terms of carton strength. Experiments have shown that the strength of the pre-printed carton is higher by 10% than that of a similar weighted paper distribution structure. The offset sheet is printed on the corrugated board and the corrugated board is affixed. The gluing machine uses cold glue. When the pressure roller presses the board, it will press down the corrugation peak and reduce the compressive strength and stacking strength of the corrugated box. The loss of offset strength can reduce the weight of the corresponding paper and maintain the required strength when pre-printing the structure for gravure printing. The base paper generally accounts for 60% of the total cost of the carton. Lowering the grammage can reduce the cost by 10%. (To be continued)