First, what is the background of the wide color gamut printing?

1. The needs of the development of the times

At present, the use of digital cameras for the popularization of manuscript input, the widespread use of ink jet printers, and the construction of RGB digital workflow systems have led to the widespread use of wide color gamut printing in order to adapt to such a printing environment.

2. The need to develop overseas business

Since the printing business currently engaged in printing may come from different countries and regions, it is most appropriate to use the ink of the customer's country or region in principle. However, if you really want to do this, the variety of inks will be very confusing and difficult to implement smoothly!

Second, briefly introduce the following three color gamut

L*a*b*: Full color gamut, device-independent widest color gamut

Adobe RGB:Ink Jet printer, the gamut that EIZO ColorEdge can represent

s RGB: The color gamut that ordinary displays can represent

Third, there are three main printing standards:

ISO (fogra) printing standard in Europe

SWOP US Printing Standard

Japan Color Japan Printing Standard

Fourth, what is the wide color printing?

Wide color gamut printing is by far the closest printing method to the Adobe RGB color gamut in terms of color gamut.

At present, there are two main printing methods:

1.6 color printing C+M+Y+K+O+G

Pantone: Hexachrome uses fluorescent colors

DIC: Six color system Packaging Industry

2.7 Color Printing C+M+Y+K+R+G+B

Heiderberg: HiFi Color

Wide color inks include common inks

Five, four-color wide color printing inks are:

Toyo Ink: Kaleido

DIC: Gushing Wakimizu

Donghua Ink: Broad

Yachang Development: CHROMA centric, CHROMA centric ink that is close to AdobeRGB color gamut

The effects of four-color wide color gamut printing are: For ordinary printing, for example, the orange color of the leather bag, the appearance of the blue color of the background is better than the current traditional printing.

Six, four-color wide color gamut characteristics

1. Four colors can be used for amplitude modulation and frequency modulation screen printing. In order to prevent moire (moiré) from printing on six or seven colors, it must be printed on the FM network. AM outlets can also be specified abroad.

2. Corresponding Yachang current printing press

The current Yachang press is mainly based on 4, 5 color machines

3. Monitors that can be used for screen soft proofing, EIZO Color Edge displays

4. Ink-Jet proofing

With the successful development of Vivid Magenta, inkjet proofers can reproduce a wide color gamut.

5. Application of four-color wide color gamut

1Overseas printing materials do not need to specially prepare European and American ink specifications, saving the cost of inks in ordering, transportation, storage, etc.

2 high quality printing

Asked to present AdobeRGB prints, such as photography magazines, high-grade books, FM/AM high-resolution printing oil paintings, catalogues, such as the performance of flowers