GCM 360 Lecture Notes - Lecture 11: Offset Printing, Flexography, Coated Paper
31 Dec 2020
School
Department
Course
Professor
Document Summary
Week 11: spot colours and expanded colour gamut (ecg) If you are interested in packaging, you need to know about spot colours: packaging requires bright and bold colours. Spot colours: non-process colour used in jobs to improve colour reproduction. In xerox digital presses we cannot add spot colour toners to our printing device, so all spot colours are converted to a cmyk simulation of that colour, so in digital printing we have only option b. Spot colours are used in: technical applications, for logos are brand colours. First step: making a pantone ink from a recipe: to make the pantone 1797 ink the supplier will refer to the pantone formula guide that indicates the recipe to make a colour based on using 14 base colours. But there is another way to print the same job. Printing with this 5th channel is expensive: designer chooses from a swatch, uses that colour in her design and gets that on press.
