In the embossing process of the beer box, the liner must first be sent to a flexo web printer before it is processed. Then, the liner is bonded to the corrugated core and the other liner to form a corrugated packaging material. Corrugated paper uses a relief made of a resin material for both rotary printing and sheet printing. Flexographic printing using water-based ink is an extremely effective printing method, regardless of the smoothness of the liner used in the production of the corrugated medium, and can be printed accurately and at a high speed. In addition, the flexo printing ink has good opacity, and can be printed on the original leather paper used in the production of the crepe paper.
In the past, the use of resin relief plate process, the use of organic solvent cleaning process is indispensable, and later from the plate-making process began to use some environmentally friendly media, such as the only use of water can be used to wash the plate; through the heat Plates that can be used for development; plates that use UV-curing liquids (for the recovery and reuse of unsensitized liquids) using liquid sensitizers are environmentally friendly printing methods. However, in Japan, flexo's high-mesh line process has not made much progress, and most of the flexo products seen by the store are 80 network cable products. In Europe and the United States, especially in Europe, the printing method of corrugated paper materials is mainly flexographic, and the flexo printing products with 100 to 140 network cables can be seen. The reason for flexo printing high-line numbering can be said to be vigorously adopting the environment-coordination process in Europe, and Japan has high requirements for the reproduction accuracy of printing. Fine printing is achieved by offset printing and gravure printing, which is a so-called grainless photo. Reproduction of (175 Lpi) consciousness works strongly as a result.
Although the same gravure gravure printing method, but gravure gravure printing machine and gravure gravure printing machine is different, the need to achieve the transfer of ink by applying a large printing pressure, so the plate cylinder and the impression cylinder is large Again, it is a kind of printing method for large quantities of products. Since gravure printing is a different printing method than flexo printing, the printed paper must have good smoothness. The gravure printing with a large amount of ink coating is thick, and compared with offset printing and flexo printing, it is a printing method with high evaluation on deep printing. In order to respond to the environmental countermeasures that limit VOC emissions, it may be necessary to consider corresponding to water-based gravure in the future.
The so-called offset printing is offset printing. When it comes to corrugated offset printing, the past process was generally to first perform offset printing on cardboard, etc., and then attach it to single-sided corrugated paper. In 2000, due to the wide adoption of G-type corrugated, very thin G-type corrugated paper could be directly printed on the offset press. This direct offset printing process can reduce the number of processes compared to the process of printing on cardboard and then laminating with single-faced corrugations. Therefore, it is theoretically advantageous in terms of delivery and cost, but the greater advantage lies in the G-type corrugated file. Offset can be carried out directly, which can greatly reduce paper usage. The reduction in energy consumption during production becomes a reduction in cost and a reduction in CO2 emissions; the reduction in transportation energy consumption is associated with a reduction in transportation costs and a reduction in CO2 emissions. For example, digital cameras and other products use air transportation. Assuming that they are shipped to New York and packaging is reduced by 10g, CO2 emissions will be reduced by 152.9g during the air transport phase. G-type and other very thin miniature corrugated packaging, high strength, thin thickness, small size, and beautifully printed. As a packaging that corresponds to environmental coordination, it will become even more compelling in the future.