(1) Sheet material

A printing sheet mold injection molding currently used mainly PET, PC and PMMA. materials, which is the most commonly used PET material, PET material types on the market range, both formal large production, and other sources. If the original printed materials without the necessary test, will result in no adhesion between film material and ink, resulting in a series of process. After the injection molding injection molding in the use of customers to do different batches of materials after the first material to do some testing:

For example: the use of ink adhesion test to test whether the ink on this material attachment. Material temperature resistance test, testing later injection, the material can withstand the temperature of the injection mold.

In fact, in the ink adhesion test,the best way is to test the direct use of UV ink. UV ink industry at present are generally only after attached to the processing material printing will have adhesion, if there is this material on the adhesion of UV ink, solvent ink in printing materials will definitely not be a problem.

(2) Printing ink

At present, the market for injection ink to Japan and Germany mostly, domestic manufacturers in production, but in practical applications are relatively rare, but also less successful cases.

In the process of using ink, we should pay attention to the following problems:
a. Ink has no adhesion on film material

Confirm the conditions of use of ink with ink manufacturers,whether need to add the curing agent, and whether need special thinner;Confirm the types of thin film with the film manufacturer, and whether through some easy adherent processing;

b. Printing ink will be solidified in the process, no net

After general ink add curing agent, the use of time will be limited, some ink after adding two kinds of curing agents, the use of time will become shorter, so before printing manufacturers need to confirm clearly; if one component is ink just add thinner.

C.When ink is in the injection, it will arise to "flower" phenomenon

Reason analysis: the ink is not resistant to high temperature, or the ink is directly exposed to the high temperature injection molding resin.