Hexachrome was a six color printing process designed by Pantone Inc. In addition to custom CMYK inks, Hexachrome added orange colour orange and green inks to expand the color gamut , for better color reproduction. It was therefore also known as a CMYKOG process. Hexachrome was discontinued by Pantone in 2008 when Adobe Systems stopped supporting their software. While the details of Hexachrome were not secret, use of Hexachrome was limited by trademark and patent to those obtaining a license from Pantone. Software In order to use the Hexachrome process in a digital printing process, Pantone produced a Plug in computing plugin for Adobe Photoshop that allowed the designer to work in an RGB color space more typical of computer work. Using a six channel ICC profile , this was then converted to the Hexachrome gamut as part of raster image processing . The plugin was discontinued by Pantone in 2008 because Adobe Systems no longer supported Pantone s Rosetta legacy clarification needed apple rosetta? date November 2011 plug in format. See also CcMmYK color model External links US patent 5734800 http www.pantone.com pages pantone pantone.aspx?pg 20151&ca 10 Pantone Hexachrome patent announcement news release, May 26 1998 http www.pantone.com pages Products Product.aspx?pid 278&ca 31 color space Category Printing terminology tech stub de Hexachrome fr Hexachromie it Esacromia pl Hexachrome tr Hegzakrom ... more details
In offset printing , a spot color is any color generated by an ink pure or mixed that is printed using a single run . The widely spread offset printing process is composed of four spot colors Cyan , Magenta , Yellow , and Keyline Key black commonly referred to as CMYK . More advanced processes involve the use of six spot colors Hexachrome hexachromatic process , which add Orange colour Orange and Green to the process termed CMYKOG . The two additional spot colors are added to compensate for the ineffective reproduction of faint tints and shades tints using CMYK colors only. However, offset technicians around the world use the term spot color to mean any color generated by a non standard offset ink such as metallic , fluorescent , spot varnish, or custom hand mixed inks. When making a multi color print with a spot color process, every spot color needs its own lithographic film. All the areas of the same spot color are printed using the same film, hence, using the same lithographic plate . The dot gain , hence the screen angle and line frequency , of a spot color vary according to its intended purpose. Spot lamination and UV coatings are sometimes referred to as spot colors , as they share the characteristics of requiring a separate lithographic film and print run. Computer methods There are various methods to incorporate rather sophisticated patterns of spot colors in the final prepress artwork. Software applications such as Adobe InDesign , Adobe Illustrator , CorelDRAW , QuarkXPress and Scribus may generate spot colors as additional channels. Adobe Photoshop can also be used to generate soft edges widely known as feathered edges of spot colors. The dissolve effect provided by Adobe Photoshop layer patterns can be generated for any spot color. Optimizing usage Generally the cost and potential for problems for a print job increase as one adds more spot colors, due to the increased cost and complexity of added process inks and films, and requiring more runs per finish ... more details
six color CMYKOG Hexachrome considerably expand the gamut. Light, saturated colors often cannot ... Hexachrome Spot color CcMmYK color model Grey component replacement Under color removal Under color ... more details
otheruses Watercolors disambiguation Image Dolceacqua43 Artista locale mentre dipinge un acquarello.jpg thumb 300px An artist working on a watercolor using a round brush Watercolor American English US or watercolour British English UK and English in the Commonwealth of Nations Commonwealth , also aquarelle from French, is a painting method. A watercolor is the Processing medium medium or the resulting Work of art artwork in which the paint s are made of pigments suspended in a water soluble vehicle. The traditional and most common support for watercolor paintings is paper other supports include papyrus , bark papers, plastics, vellum or leather , textile fabric , wood, and canvas . Watercolors are usually transparent, and appear luminous because the pigments are laid down in a relatively pure form with few fillers obscuring the pigment colors. Watercolor can also be made opaque by adding Chinese white. In East Asia, watercolor painting with inks is referred to as brush painting or scroll painting. In Chinese painting Chinese , Korean painting Korean , and Japanese painting it has been the dominant medium, often in monochrome black or browns. India, Ethiopia and other countries also have long traditions. Fingerpainting with watercolor paints originated in China. History Although watercolor painting is extremely old, dating perhaps to the cave paintings of paleolithic Europe, and has been used for illustrated manuscript manuscript illumination since at least Egyptian times but especially in the European Middle Ages, its continuous history as an art medium begins in the Renaissance. The German Northern Renaissance artist Albrecht D rer 1471 1528 who painted several fine botanical, wildlife and landscape watercolors, is generally considered among the earliest exponents of the medium. An important school of watercolor painting in Germany was led by Hans Bol 1534 1593 as part of the D rer Renaissance . Image A Young Hare, Albrect Durer.jpg thumb left Albrecht D rer , Youn ... more details
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