How to control the color accuracy of textile digital printing?
Digital printing technology is a convenient and cost-effective printing service that saves the process and cost of traditional printing plate making. The key practical technologies for digital printing are color, pattern and color fastness. The representation of the pattern can be achieved by color separation and design software, and the color can be achieved by using several different coloring methods.
This article will introduce five common toning methods for reference.
screen display
Adjust the color of the image by adjusting the color displayed on the screen, usually by selecting or adjusting the color from the color menu on the screen. This method is very useful when color matching or starting to color, and it is a color matching method commonly used by designers. However, due to the color rendering principle of the display screen and the color rendering principle of the dye on the fabric (the screen is made by mixing three electron beams of RGB, and the dye is expressed by absorbing light of certain colors), the screen Not all of the color on the fabric can be seen on the fabric, and the small differences in the color presented by the dye cannot be clearly displayed on the screen. Therefore, this is a rough color matching method and cannot be used for precise color matching.
color card
Color matching by color card is a simple, intuitive and effective method. The international common color card includes RGB color card, CMYK color card, Lab color card and PANTONE color card. Pantone is the most common way. Compare the color of the sample with the Pantone, find the color code with the same or similar color in the Pantone, record the corresponding value or number, enter the color value in the drawing software, and adjust the color of the image.
Color measurement method
The hue method measures the color of the target patch with a colorimeter, and transmits the measurement result to a PC, and then prints the color. This method uses an instrument to determine color, which eliminates many artifacts and environmental factors.
Experience Color Adjustment
The speed and accuracy of the empirical color matching method in the operation process depends entirely on the needs of the operator's continuous analysis and accumulation in his usual work. In the process of accumulating experience, it is necessary to continuously accumulate data, and paste and mark the adjusted colors when needed for emergency use. The digital printing experience color method is similar to the traditional printing experience color method, but it is easier to master than the traditional printing color method.