Colors outside of four colors (on)

Pantone Hexachrome six-color printing requires a good RGB wide color gamut original, Pantone Hexachrome color separation software, Pantone Hexachrome ink, etc. It is best to add a digital proofing machine to simulate the results of six colors. In the two major fields such as labels and packaging printing, many six-color printing products have appeared quietly.

Foreword

Most of the packaging and printing will be associated with the production of many special colors. However, in many countries, many stickers, photographers and packaging printing have used six-color printing to print high-fidelity prints in order to save cost and time.

High-fidelity printing

Four-color printing has its own color gamut, and the method of expanding color gamut may use four-color or more printing methods. For example, Pantone six-color printing, Hexachrome, can expand certain color gamuts to attract more customers. Care.

Pantone Hexachrome is CMYK four-color plus orange orange and green green ink.

In addition, it has also been proposed to use the seven-color printing method to increase the color gamut, that is, in addition to the CMYK four colors plus a more pure overprint ink RGB.

Of course, using the traditional four-color plus special color method can also show the color gamut of the traditional color gamut and visual effects.

As for which method is better? As long as the image quality is consistent, the prepress operation is smooth, digital proofing, smooth printing, and cost saving can be done.

Pantone Hexachrome's Gamut Gain Comparison (Orange Curve)
The blue line represents the gamut of the sRGB color in the light blue part that can be represented by the traditional four-color ink.

Used in packaging printing

At the design stage, a color display is adopted to allow the user to quickly preview the desired color. Unfortunately, because the color is expressed by ink during printing, it is not necessarily clear whether the designer can see the colors that are printed on the screen. So Pantone Hexachrome developed the software and its orange and green inks, expecting the designer's screen to predict future colors. Pantone Hexachrome's approach is to add orange and green to four-color printing inks to form six-color printing. In the prepress department, Pantone Hexachrome software can be used to convert RGB images into six color versions.

The two high-saturation butterflies can see the effect on the screen, but the traditional four-color ink may not be able to be expressed. If six colors of ink are used, the color of the butterfly can be improved.