spiral yo book printing wholesale often appears ink powder situation, then how should we avoid this phenomenon? Let's learn together!

First, the cause of ink powder

1, printing due to the adhesive force of the ink is too small, coupled with the paper surface is relatively smooth, resulting in the ink layer and the paper surface can not be a good fit, further leading to the ink layer from the paper rub off.

2, because the ink is too thin, the binder is easily absorbed by the paper, a large number of binder penetrates into the paper, prompting the ink binder and the pigment into a separate state, causing the pigment particles to float on the paper, the pigment loses the adhesion of the binder, the degree of connection is reduced, so that it can not be well attached to the paper, causing fall off.

3, coated paper is coated with paint on the base paper, paint and base paper have strong absorption, and the paper is thick, can absorb a lot of bonding material, and the coating surface is smooth, the pores are very fine, it is impossible to inhale the pigment together, play the role of the filter layer, resulting in pigment particles floating on the paper, due to the lack of bonding material package and fall off.

Second, the way to prevent ink powder:

1, do not have strong absorption of coated paper printing products, otherwise must use strong adhesion resin ink to print.

2, add the right amount of 0 ink oil or adhesive to enhance the adhesion of the ink to the paper.

3, control the emulsification of ink, layout water consumption should be small. Often determine the PH value of the water tank solution, and adjust to the required value, dry oil should be added with the use, reduce the ink emulsification in order to master the drying time.

4. Fine products that have been pulverized can be solved by glazing or coating.

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