Yuelong
printing analyzes how to reasonably arrange the printing process according to the characteristics of different base paper. Because what kind of base paper to use is often not decided unilaterally by the carton factory. The quality characteristics of the base paper are determined by the use characteristics of the carton (such as the high and low of the contents, the length of service time, etc.), the transportation conditions of the product, the customer's business concept and cost control methods.
some low-grade and low profit products only need to use low-grade base paper, so as to reduce the production cost and make the production have a certain profit space, which is easy to add a certain degree of difficulty to the production. However, as long as you receive the order, you have to find ways to solve some problems in the production process due to the quality of base paper. For example, the surface coating quality of some low-grade white paperboard is poor. When printing blue, green flat screen or full plate on the spot, it is easy to appear transparent spots, that is, the local paper surface coated with light will obviously detect the fiber structure of the base pulp and affect the uniformity of printing ink.
in this regard, the redundant color group can be used to arrange a diluent in the first group of the printing machine, and then print on the surface of the diluent. In this way, the diluent can cover the local exposure on the surface of the white paperboard, increase the gloss of the printing ink layer, and reduce the coating amount of the ink accordingly. Therefore, this process is still feasible. There are also white paperboard with poor surface strength, which is prone to the disadvantages of paper powder falling, blistering or delamination in the printing process, which not only affects the printing efficiency, but also affects the printing quality.
In this regard, the first solution is to properly adjust the viscosity of the ink and adjust the viscosity of the ink with punching adhesive; Second, adjust the appropriate printing pressure to print with as light printing pressure as possible to reduce the damage of pressure to the paper strength; Third, appropriately reduce the speed of the machine for printing and reduce the force of printing ink stripping force on the paper; Fourth, reasonably arrange the printing color sequence, which should be used as far as possible: print small layout first and then large layout; First print low viscosity ink, and then print high viscosity ink; Fifth, the printing sheet can be air embossed or "watered" by using the redundant color group; Sixth, the white paperboard with poor printing surface strength is adjusted for printing. For example, the liquid ink viscosity of flexographic printing is lower than that of offset printing and embossing printing. The flexographic printing process can be adjusted for printing, or for products with small printing area. Through such process arrangement, the paperboard can better prevent powder falling, blistering or delamination.
Guangzhou Yuelong Printing Co., Ltd. was established in August 2014. The company is located in building C, YinBai Industrial Park, No. 109, Yufeng Road, Datong village, Dongyong Town, Nansha District, Guangzhou. With a total investment of more than 20 million yuan and a plant area of more than 7000 square meters, the company specializes in printing and packaging. In recent years, the company has continuously increased the investment of funds and equipment. At present, the company has many Heidelberg ordinary printing machines, UV printing machines, silk screen printing machines, full-automatic laminating machines, full-automatic pit mounting machines, full-automatic paper mounting machines and full-automatic die-cutting machines, Automatic plastic film box saw blade machine, automatic bronzing machine, high-speed box gluing machine, etc
