Editor's Note
Welcome to the third issue of QC magazine. When we talk about color and its production on printing, some people talk about its adjustment on computer and others check the file at the printing time. But the main point is created in three important parts to color formation and visibility. The first is the light source and the analysis of light emitted from an object, the second is the surface of the subject, which reflects the reflected light in some way and here is the printed material, third, the audience that is going to see that color after the previous two steps. We have three sciences for color analysis: physics, chemistry and biology and this is where the reasons for color correction and change is so much more than a simple incident. One of the goals of this issue is exact examination of why colors change and how to prevent these unwanted changes. For this reason, the key theme of this issue is about the reasons of color change in print and some parts of these reasons are examined on monitor, printing and eye.
Table Of Contents
1- Why colors change?
All of us are probing to find ways for better colors in printing. But we can do just a few settings to make a better quality while printing. The main color setting does in prepress level that contains different instructions like color manage, control, repair, and export of file’s colors. The monitor is the first important factor to show and reconstruction of colors to produce an excellent file. But the experiment is a more important point than having a good monitor. In this part, we are going to describe that it is possible to have color change even with a calibration monitor and we will give solutions about this.
2- Correct numbers in rich black
Dark black has always been an important issue in printing. But what characteristics should black have to be properly transferred to the surface of the printed material during production? Can any type of black with any color code be recognized as a standard black? Is it enough if black code is defined with K=100%? What is the effect of presence of other print colors (CMY) along with black on printing time? These are the questions that always arise in the minds of graphic designers, and in this section we want to fully analyze the subject of black color for you.
3- Print vs. Digital. Which is the most sustainable?
When it comes to preventing environmental pollution and saving natural resources, our minds turn to less water consumption and the use of public transportation. But you do not even think that you are harming the environment while you are reading these texts right now! The issue is not as complicated as you may think; in this part, we will talk about the carbon footprint, how to lessen the environmental impacts of reading books (yes, reading books may have environmental effects), and how to avoid consumerism and move toward sustainability. Don’t forget that small changes over time can really add up. A concept often used in meteorology known as the Butterfly Effect can show us how, and you can read more about that.
4- Strong emotions included - Part one
Printing has the ability to create strong connections by adding elements that turns a wannabe product to a memorable must have item. Studies have shown that when something feels as good as it looks, a larger portion of our brain is switched on and we become more likely to buy it, again and again. Holding a book whose cover smells of leather created with scented ink or having the touching of wood thanks to a coating, or even a postcard with embossed or happy glowing elements, the buyer is engaged with those pieces at a deeper neurological level. Creating a memorable experience is important for the success of a product and the commitment of the consumer to it.
5- 256 gray levels in eye structure
Probably Resolution is one of the most important points in Prepress. This concept is used both in graphic software and during screening in lithography. Proper adjustment can improve the quality of the final product, but often it can be adjusted incorrectly. But the question is, how the Resolution units are defined? The answer lies in the structure of the human eye. In this section, we want to make sure that the numerical value in Resolution is directly related to the power of color recognition by the eye. The structure of color management, bit depth, and the subject of color recognition by the brain depend on the number of levels that the eye can detect.
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