Printing color is difficult to be precise, the top five troubles you have no tricks
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1, the trouble of the brand
Brand owners have their own positioning and corresponding marketing strategies for their products. Therefore, brand manufacturers have requirements for the packaging design and printing of their products. In this process, printing is required to achieve accurate color reproduction.
However, in the process of copying, it will first be affected by the limitations of human eyes. Subjective color evaluation based on the human eye is subject to various restrictions, such as:
The background color will affect the color, and the human eye cannot remove the influence of the background color on the color;
The eyes will be tired, and the retina will produce a “post-image” under the influence of one color. It may take 15 minutes to break the effect;
Color blindness or color weakness will affect color judgment. According to statistics, one out of every 13 men will have color blindness or color weakness, and every 300 women will have color blindness or color weakness;
Age, work experience, etc. will also affect people's evaluation of color.
Secondly, the light source condition will affect the judgment of the human eye on color; the metachromatic phenomenon will affect the color, and the color file will change with time... Therefore, the subjective color evaluation method relying on visual observation is often not so "reliable". For the printing industry with high color requirements, tools need to be used to accurately evaluate the color.
2, the trouble of creative design links
Designers have a lot of good ideas and solutions, but when they get printed proofs, they often feel that they can't realize their own ideas, and their demands on the printing factory are often difficult to understand. It is difficult to communicate with each other in color; The right tool to capture the color you want, it takes a long time to define the color you want; because you don't understand the printing process, you always feel that you can't communicate with the printer.
3, the troubles of the pre-press link
As we all know, the pre-press link is one of the most important links in the printing process. Especially in the era of digitization, while the printing quality requirements are getting higher and higher, it also puts forward higher requirements for prepress producers. For customers with a wide variety of formats and sources, prepress personnel need accurate color separation, need to handle the color and image of each link, and need to output accurate and consistent plates to ensure that the printing effect is consistent with digital proofing... a series of The problem will affect the effect of the printed product. Especially in the packaging and printing, the spot color is generally applied, and the proofing and reproduction of the spot color is a major problem that plagues the prepress.
4, the ink color matching troubles
Ink has undoubtedly an important influence on the printing effect. Ink suppliers are struggling to achieve the color desired by the brand owner, providing consistent and correct ink color to the press.
But there are a lot of problems that make ink suppliers and printing companies' color schemes a headache:
Due to the limitations of the vision system, it is basically impossible to consistently match colors without using any tools;
Changes in the raw materials of the ink will result in unsatisfactory printing results;
Need to achieve color matching on substrates with different optical properties;
The color of the ink required will vary depending on the printing method.
5, the trouble of the printing link
As part of the implementation of the overall solution, the printing process plays a decisive role in achieving the color that the brand owner wants. The printer needs to accurately copy the color that the designer needs, and needs to be able to quickly and accurately obtain the desired color of the ink (especially the spot color ink), and to cope with the printing speed, temperature, humidity, and basis of the printing machine throughout the production process. Print color changes caused by changes in many factors such as materials.