High saturability color printing process for natural kraft
A technology for color printing and kraft paper, applied in printing, printing devices, etc., can solve the problems of inability to present high-saturation colors, dark color images, difficulties, etc., to improve the reproduction effect, the process is simple, and the color saturation is improved. degree of effect
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Embodiment 1
[0041] For warm-colored and darker-colored printed images without a white background, when using the high-saturation color printing process of natural color kraft paper of the present invention, the following steps are specifically included:
[0042] S01. Use a spectrophotometer to measure the chromaticity of the natural color kraft paper to be printed and record the chromaticity value;
[0043] S02. Perform color adjustment on the image to be printed in the image processing software, and appropriately increase the color saturation of the image to be printed;
[0044] S03, extracting the highlight part of the image obtained after increasing the color saturation in step S02, as a separate white spot color version;
[0045] S04. On the basis of the adjusted color value of the image to be printed in step S02, subtract the chromaticity value of the natural color kraft paper measured in step S01 to obtain the image to be printed after color reduction;
[0046] S05, performing colo...
Embodiment 2
[0058] For the cool tone printing image with white background, when adopting the natural color kraft paper high-saturation color printing process of the present invention, specifically comprise the following steps:
[0059] S01. Use a spectrophotometer to measure the chromaticity of the natural color kraft paper to be printed and record the chromaticity value;
[0060] S02. Perform color adjustment on the image to be printed in the image processing software, and appropriately increase the color saturation of the image to be printed;
[0061] S03, extracting the highlight part of the image obtained after increasing the color saturation in step S02, as a separate white spot color version;
[0062] S04, performing spot color separation on the image to be printed obtained in step S02, extracting one or more spot colors from the image to be printed according to the main color of the image, and deploying corresponding spot color inks according to the obtained spot color values, and ...
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