Talk about your feelings about color printing and an introduction to printing color

"Printing on Imitation of Bad Colors and Big Slag Color" is a book published by Chemical Industry Press in August 2007, and the editors-in-chief of the book are Liu Zhen, Jiang Jiwang and Jin Yang.

The whiteness of the paper. When printing, the whiteness of the paper is 100% total reflection, especially the color discrimination, we must understand the importance of paper whiteness, especially as one of the main factors to distinguish the color of the paper, the whiteness of the white paper carrying the color imprint, plays a decisive role in the hue, brightness and saturation presented.

The influence of environmental colors. Ambient colors can also have a significant impact on the correct color discrimination, and in the same way, when observing and analyzing colors, it is important to avoid color illusions during the sample viewing process.

The relationship between the absorbency of the paper and the blotting ink layer. Due to the great difference in the absorption of various papers to ink, coated paper has small absorption, letterpress paper and offset paper have large absorption, and paper with large absorption often solidifies the imprinted ink layer, and there is a large loss in the drying process.

What factors affect color discrimination when comparing color samples. In offset printing, when comparing whether the ink color sample and the printing sample ink color size and hue are accurate and consistent, the environmental color has a greater impact, as well as the brightness and darkness of the light (daylight) and whether the color cast, as well as the physiological phenomenon of color blindness of each person have a certain impact.

This book mainly discusses the basic theories and methods of printing color and colorimetry, and expounds the color processing principles and color management techniques of color printing on this basis.

The book is divided into five chapters: the first chapter is an introduction, which describes the history and basic concepts of the development of printing color and colorimetry; Chapter 2 discusses the basic concepts of color, the formation of color vision, and various phenomena of color vision. The third chapter is the knowledge of colorimetry, which is the focus of the book, mainly including the measurement of color and the transformation of chromaticity coordinates, and introduces four types of systems for quantitatively describing color: the color mixing surface system, the display color surface system, the color homogeneous space developed on the basis of the first two categories, and the color appearance model that has attracted much attention in recent years; Chapter 4 is the theoretical method of colorimetry discussed in the previous two chapters, and explains the principle of color processing in color printing.

The last chapter introduces the color management technology and various color measurement methods and means that have developed rapidly in response to the needs of computer technology and network technology in recent years, and is also the main application technology of basic theories and methods of colorimetry in the field of printing.

This book can be used as a teaching course for undergraduates in printing engineering, packaging engineering and related majors, and can also be used as a reference book for technicians in related fields. The content marked with "*" in the book is more difficult, and can be used as reference content for undergraduate students and graduate students in related majors.