Commodities use color box packaging in daily life, especially in logistics and transportation, color boxes play a role in protecting products in the process of transportation, from damage. owadays, with the continuous improvement of consumers' requirements for packaging, in addition to the role of the color box protection products, the requirements for the appearance of the color box are also constantly improving.In order to meet the needs of consumers, the multi-color printing design is used in the color box printing design to achieve the effect of improving the appearance of packaging.So in the printing process of multi-color overprinting, what are the reasons for bad overprinting?
1. Difference between printing and ink ratio: In order to save the cost and better understand the price of the purchased raw materials, most color box manufacturers often have multiple suppliers supplying at the same time.Due to the different deployment methods of printing ink by each supplier, the solubility of printing ink by different manufacturers is different, resulting in the phenomenon of bad overprinting when using the printing ink provided by different manufacturers in the overprinting process.
2. Adjustment of overprinting pressure: the pressure when overprinting should not be too large, and the greater the pressure will often increase the occurrence of bad overprinting, so it is very important for us to control the printing pressure in the process of overprinting.
3. The correct use of printing ink: It is worth mentioning that, in fact, printing ink also has a shelf life.The ed ink will slowly deteriorate after a long time of storage.Therefore, if in the process of overprinting, the printing ink used in the previous color is nearly deteriorated old ink, then it is easy to produce bad color box printing phenomenon when overprinting.