Ink powdering often occurs in album printing. How can we avoid this phenomenon? Now let Jinan Printing Factory and everyone to learn about it.

　　想要避免画册印刷油墨粉化，就要进行原因分析：

　　In order to avoid the powdering of printing ink in picture albums, the reasons should be analyzed first.

　　(1)画册印刷时，由于油墨的粘着力太小，再加上纸张表面比较光滑，导致墨层和纸张表面不能很好的贴合，进一步导致墨层从纸面上擦落。

　　(1) In album printing, because the adhesion of ink is too small and the surface of paper is relatively smooth, the ink layer and the surface of paper can not fit well, further leading to the ink layer from the paper surface scratch.

　　(2)由于油墨太稀薄，连结料很容易被纸张吸收，大量的连结料渗透到纸内，促使油墨中连结料与颜料成分离状态，造成颜料颗粒浮于纸面上，颜料失去连结料的粘附，其连结程度降低，从而不能良好地附着在纸面，引起脱落。

　　(2) Because the ink is too thin, the binder is easily absorbed by the paper, and a large number of binders penetrate into the paper, which makes the binder and pigment components separate from each other, resulting in the floatation of the pigment particles on the paper surface, the loss of the binder adhesion of the pigments, and the reduction of the degree of the binder, which can not be well adhered to the paper surface, resulting in shedding.

　　(3)使用的油墨乳化严重，不但降低粘度，干燥速度，增大渗透量，更重要的是乳化了的油墨结膜后不能与纸面很好的结合，附着力较差，而且膜层坚固程度极差，轻微的擦动就会使膜层破裂而脱落。

　　(3) The use of ink emulsification is serious, not only reduce the viscosity, drying speed, increase permeability, more importantly, the emulsified ink conjunctiva can not be well combined with the paper surface, adhesion is poor, and the film is very weak, slight rubbing will make the film break and fall off.

　　(4)铜版纸是在原纸上涂布涂料而成，涂料和原纸都有较强的吸收性，而且纸质较厚，能吸收大量的连结料，加之涂层表面光滑，孔隙极细，不可能将颜料一起吸入，起到了过滤层的作用，导致颜料颗粒浮于纸面，因缺少连结料的包裹而脱落。

　　(4) Copper plate paper is coated with paint on the base paper. The coatings and the base paper have strong absorbability, and the paper is thicker, which can absorb a large number of binders. In addition, the coating surface is smooth and the pore is very fine. It is impossible to inhale the pigments together. It plays a role of filter layer, which causes the pigments particles to float on the paper surface and fall off due to the lack of linking materials.

　　以上是造成画册印刷油墨粉化的可能原因，现在我们找到原因了，下一步就好分析办法了。

　　These are the possible reasons for the powdering of printing ink in picture albums. Now that we have found the reasons, the next step is to analyze the method.