The function of the UV printer curve is to specially adjust the color proportion and make the image output by the UV printer according to the established requirements. After the operator has set the printing accuracy and pass channel, there is a small setting to reduce the value of the dark part behind the curve.
If the value of dark color is too high, it will reduce the bright effect of the final pattern. It is worth noting that for different materials, due to light transmittance, bright type, and other reasons, some colors will be normal, and some will lack dimness, which requires technicians to continuously accumulate corresponding experience.
The image output by the UV printer is not bright enough. The solution: increase the rising angle behind the curve in the color software to solve the problem. The specific rising angle value needs to be debugged by the technician according to the color status of the customer’s pattern until it meets the required standard.
In addition, sometimes the image output from the UV printer will suddenly fade. There are only three reasons for this problem. Based on years of practical experience, we now provide some methods to help you solve this problem in practice.
Reason 1: the ink amount in the print setting is too low
Generally, there are 40%, 60%, 80%, 100%, and other different ink output controls in the UV printer image control software. If the operator is inexperienced, he will print the original 100% ink volume with 80% ink volume, which will cause the output image to be light. The solution is to increase the ink quantity.
Reason 2: the printed pass is too low
The color and accuracy of patterns printed by different passes are different. Usually, a high pass is used for printing on some objects with small materials, which can make the patterns clear and rich in color; For large format printing, the lower pass can be selected for printing. This requires technicians to print pass settings for different materials according to actual experience.
Reason 3: influence of material
The transparency, gloss, smoothness, and other characteristics of the substrate itself will affect the final UV printing effect, resulting in some light and some deep output images. In addition to the visual error of the naked eye, some materials can absorb the ink, and some materials can dissolve the ink. For example, when printing a pattern on a conventional acrylic inkjet printer, the UV printer only needs 80% of the ink. A little more will cause a darker image.
All of these require that the technicians continuously accumulate experience in the actual printing, so as to better solve these problems.