I came accross two different color bars on two distinct cardboard packaging and was trying to figure out what these were exactly about and found some helpful illustration:1
So in the first example(random pasta box), there are 5 solid color patches C, M, Y, M+Y, C+M, with their corresponding 25, 50, 75% tints (standard process control elements for gauging dot gain for instance, such as these), and gray balance bars; formatted in a somewhat expected manner.
In the second example(Voltaren Gel) you only have brand color circle patches, including one(silver) with some "reflective" property. The name of the specific product is used to qualify the color and is printed in that very color.
- Is the purpose of the color control "bars" the same in both examples?
- What type of color control is the second example about - is it even about process control at all; what does such a control element reveal about the printing process here - if anything?
1. The illustration (the bottom part of the image) is from The Colorshop Color Primer, by Fred Bunting, (c 1998 Light Source Computer Images, Inc. An X-Rite Company).