We can see it in the combination of the existing paper bag machine and the printing press. In this case. The paper bags that can be produced are very beautiful. At the same time can also meet our market demand.

For the use of the market, we can add a third primary color on the basis of two pure colors of primary color printing. After such use, we will find that the chroma of printing color will be reduced, and naturally, the brightness of the product will be reduced accordingly, and we will keep the tone of printing color basically unchanged. At the same time, it will make the color of the paper bag machine close to the color printed by adding a certain amount of color to black. At the same time, in color printing, we will often use this feature to reduce the amount of color ink, called background color removal (UCR) and gray component replacement (GCR). To be able to see the product in the four-color printing technology, we will focus on the color of the picture is the most need to pay attention to a problem, to be able to know that there is a line of blue words on the yellow bottom plate, so it will make the yellow version of the film, see the position of the blue words must be empty. And the paper bag in the paper bag machine color changed to black the position of the word should not be hollowed out. So, relatively speaking, black can hold down any color, and it's easy to see if black content is hollowed out. So only let the product combine. Can be very good to occupy the market.