Ji 'nan album printing process is not to say that every time will smoothly complete the task, sometimes there will be problems affected by a variety of factors, such as the more common problem is white crack phenomenon, what is going on?
Local whitening. Is due to the poor mutual solubility of wax and surfactant in the ink system, or ink in the printing process scab no longer dissolved and transferred to the figure.
Dotted line with white dots. It is caused by the static electricity of the ink or substrate, or by the static electricity of the diluting solvent, and it usually occurs when the temperature is higher or the printing speed is faster. Secondly, when laminating, the front and back loose or before loose and tight, often due to the humidity of the weather and static electricity.
Fission whitening. Ink transfer performance is too poor, or plate pattern is too shallow, easy to make ink system solvent volatilization too fast. General rough printing will lead to poor film forming, especially when adding ink system or ink bucket thinner moisture absorption will appear white phenomenon, more often in the summer workshop humidity is too high in the environment.
Whiten the entire mark. When the continuous printing time is too long, when the operator found that the ink viscosity becomes sticky or thickened, repeatedly add a single solvent, so as to break the volatile balance of the original ink system mixed solvent, resulting in the printing ink to form a film.
The addition of too much mixed solvent in the process of operation, often relatively reduce the content of synthetic resin ink, will also lead to white crack plate.
In addition, a good printing enterprise will strictly check the use of excellent printing technical staff, advanced printing equipment, good workshop working environment to carry out the printing of all kinds of products, so when you choose Ji 'nan album printing manufacturers must be carefully considered during the printing.
In short, the phenomenon of white crack plate often occurs in ji 'nan album printing. This phenomenon will not only affect the quality of the product, but also cause unnecessary losses to the printing manufacturer. We explain the reasons above, and hope to help you. Website http://www.xinfengyinshua.cn for more content.济南印刷厂讲解的内容 更多的内容 请咨询公司官网http://www.xinfengyinshua.cn/