Packaging and printing work can be said to be the soul of product packaging, and it is one of the quality of packaging that consumers can see at first sight. A beautiful packaging and printing design can stimulate consumers' desire to shop and promote product sales.
On composite flexible packaging, the problem of ink coloring is related to the printing quality of the composite film bag, which should be strictly observed.
When printing composite film production, how to choose ink is the foundation and the key. Special attention should be paid to observing the roughness of the substrate of the substrate to be printed and the degree of smooth reflection, so as to select the printing ink for the composite film production printing process.
It is worth noting that even if you want to get the bright, gorgeous and beautiful packaging printing effect on the market, you should avoid mixing too much ink when actually printing the composite film, use as close to the standard color as possible, and make it from a single pigment. Ink. The reason is that once the color is used too much, the farther away from the standard color, the worse the brightness will be. Therefore, in general, the composite film is printed with as little mixing ink as possible, and the two kinds of compounding can be used without any kind of compounding, so as not to affect the printing effect and quality of the composite film.
In addition, the tinting strength of the ink is also the focus of the composite film printing quality. If the selected ink concentration is not high enough, the standard color density cannot be achieved anyway, and the printing effect requirement required by the customer cannot be achieved.
In the use of ink, it is worth noting that white and black inks are different from ordinary inks. Special attention should be paid to the amount of white ink. The hiding power of white ink is very strong. Adding too much will dilute the color, prevent the substrate from being reflective, and affect the quality of composite film printing. The black ink has a strong tinting strength, and if it is added too much, it needs to be added with other color inks to cause a lot of waste.