In the printing factory, printing ink is the main raw material, it is different from the substrate material: it is the quality and quantity of the remaining amount (already open) and the number of the use of the site management has a great relationship. Printing material quality is not good can be returned at any time, but a lot of ink when the quality is not bad, but the left amount too much, these residual ink throwing a pity, then but not with. It doesn't take that much, cause capital backlog and waste. How to effectively manage the ink, control the amount of residual ink is a lot of printing factories have to face the problem, the effectiveness of management in this problem is obvious. 

Printing factory generally choose 2 to 3 ink suppliers is enough. Too much more difficult to manage. Primary red generally has two kind of partial red, purplish; partial sky blue, purplish blue primary; and color yellow points greenish, reddish, two. Select ink factory, tell them clearly, own factory, most of the color is partial what, general they can meet the requirements, so as far as possible to assurance the colors of ink, can ensure that the hue is consistent with the printing quality. 

Version printed for the first time as far as possible the use of colors of ink, this color will be red diluted 20%, the color yellow red light 30%, and blue primary and add a little blue, get almost the whole is a spot color, make each printed a product almost every kind of ink will have to change. Customers according to the printing ink printing a sample, after the way in this way to transfer ink, to the printing factory added a lot of trouble. So, check the first sample is very important, should try to use color ink. In fact, the color of the wrong view, each one according to his lights, is the key to good communication with customers. 

Also, be sure to explain to customers print quality is to see whether the knife line, the transition hierarchy is a natural, dot transfer is successful, and so on, and not the color is of poor quality, the color is of good quality. Especially the new varieties, there is no need to adjust colors to adjust to. This is done, you can greatly reduce the residual ink, ink inventory. 

Ink add must add multiple, and every time you add the amount of less, in order to maintain the proportion of new and old ink ink, especially less ink, if you add too much, a class was not finished, then the performance of the ink has changed: dark leveling variation, easy wire cutter, scraping clean, produce bubble, has a great influence on the quality of printing. Used ink should always filter. 

These work well, the rest of the basic colors of ink will not be too much. For various reasons and the remaining ink how to digest? Under the premise of quality assurance, the colors of ink, mainly in the printing of a larger volume, on the ink volume, color and printing requirements and is not too high, appropriate from time to time to add some old ink, so go down for a long time can still consume a lot. 

Due to various reasons is no longer in use (can't) spot color ink, you can adjust to a different spot colors and spent, is generally dark ink into a light coloured ink. 

Note: to control, and try to digest the remaining ink, must have to operator printing matching system of rewards and penalties. Otherwise, it is difficult to have a great effect. Because in any case, there is no ink left new ink, there is no certain system supervision, the operation of the union is very free to adjust the ink, resulting in unnecessary waste.