The demand of carton machinery market surged sharply, and the high-end trend was obvious

 Carton Machinery

The common base paper varieties of carton face paper are: carton board, hanging face paper, kraft cardboard, tea board, whiteboard and single-sided Coated Whiteboard. Due to the differences in the papermaking materials and papermaking technology of each base paper, there are great differences in the physical and chemical indexes, surface properties and printability of the above base papers. Next, the problems brought by the above paper products to the starting process of corrugated board ink printing are discussed respectively.

1、 Problems caused by low gram base paper when printing with low gram base paper, the corrugated board surface will be exposed and the dot will not be cleaned. It is easy to cause the low recess of ridge peak and ridge pit to not print the required graphic content. In view of the uneven surface of corrugated board caused by exposed corrugated, the flexible resin plate with good elasticity is selected as the printing plate to overcome the defects of unclear printing and bottom leakage.

2、 Problems caused by different surface roughness of base paper printing on paper with rough surface and loose structure has large ink permeability and fast drying of printing ink, while printing on paper with high surface smoothness, dense and tough fiber has slow drying speed. Therefore, on rough paper, the ink application amount should be increased, and on smooth paper, the ink application amount should be reduced. The drying of printing ink on non sizing paper is fast, while the drying of printing ink on sizing paper is slow, but the reproducibility of printing pattern is good. For example, the ink absorption of Coated Whiteboard is smaller than that of carton board and tea board, the ink drying is slow, and the smoothness is higher than that of carton board, hanging paper and tea board. Therefore, the resolution of printing small dots on it is also high, and the reproducibility of its pattern is better than that of hanging paper, carton board and tea board.

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