Digital inkjet printing method

(1) Screen display method: The screen display method adjusts the color of an image by adjusting the color displayed on the screen. Usually, a color menu is used to select or adjust the color on the screen. This method is very useful when color matching or starting to color, is a coloring method that designers often use. However, due to the principle of colorization of fluorescent screens and the principle of coloration of dyes on fabrics (the fluorescent screen is produced by mixing RGB three electron beams, and the dye is expressed by absorbing light waves of certain colors), on the screen The colors that can be displayed cannot all be represented by the dye on the fabric, and the slight differences between the colors exhibited by the dye cannot be clearly displayed on the screen. Therefore, this is a general method of color correction and cannot be used for accurate color correction.

(2) Color-card coloring method: The color-charging method is color-matching by comparing colors in a color card. The basic process is: First, establish a color card model. One or more color modes can be selected to create a color card model, the color card model is a three-dimensional (Lab mode and RGB mode) or a group of three-dimensional (CMYK mode). Second, make a color card file. The 3D model can be decomposed into a 2D graph with one of the values ​​as a variable, and for the CMYK model there are 2 variables. Make a good color card file, print it out for use. This method of coloring is simple and easy to use. Just compare the target color with the color card and select the same color. However, if this method is used, different fabrics may cause chromatic aberration, so the color card fabric and the target fabric are preferably the same. In addition, the three-dimensional stereoscopic subdivision of the color card will also affect the color effect. If the scale is too thin, the number of color cards and the workload of the comparison will be greatly increased; if the scale is too large, the number of color cards is controlled, but the required colors may not be found when comparing.

(3) Tone color method: This color method performs color measurement on a target color patch by means of a colorimeter, and inputs the measured result to a computer, and then prints out the color. This method determines the color by the instrument, thus removing many artificial and environmental factors. When using this method, the sensitivity and accuracy of the colorimeter itself have a great influence on the measurement result, and the measurement result is inaccurate, which will directly affect the printing effect. On the other hand, the texture of the fabric will also affect the color measurement.