Printing plant requirements for printing materials are relatively high, because each printing product its function and use is different, so it will have different requirements for its appearance and quality. There are two main aspects of the quality of Kraft paper for differential printing.
One is to check the quality of its appearance, including looking at the surface of Kraft paper whether there is dust, stains, holes, creases, cracks, light transmittance points, fiber groups, corner neatness and so on. These will directly affect the quality of Kraft paper properties and printing effect.
Second, for the internal quality of Kraft paper, to understand including the physical properties of Kraft paper, chemical properties, absorption performance, optical properties, surface properties, printing performance and other more professional knowledge.
In addition, the water content of Kraft paper is one of the important factors that will affect Kraft paper printing. If the water content of Kraft paper is too high, it will be easy to wrinkle when printing. For some Kraft paper with poor uniformity and rough surface. In printing due to the paper ink absorption is large, easy to penetrate, so it is best not to choose too deep color for printing Kraft papers.
