Commonly known as \"Kraft\" is how to do it?-Iota

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Service > Commonly known as \"Kraft\" is how to do it?

Commonly known as \"Kraft\" is how to do it?

Look like when printed check printing operation print quality for the most common method. Whether monochrome printing or color printing, the operator must often use their own eyes the printing and proofs repeated comparisons to identify the difference between prints and proofs, timely correction to ensure the quality of the printed product. When printing look like the following issues deserve our attention: a: a direct impact on the intensity of light on color printing proofs to determine the strength of the light and dark influence not only on color, but also change the color appearance. Usually we observe a light-cylinder, Ying Ming tone light side, a dark side backlight adjustment. The combination of light and dark in the middle part of the tune. The same object in the standard light source is Stern, if the light gradually become strong, its tone also will change to a bright hue, brightness enhancement to a certain extent, any color can be changed to white. Black is white porcelain its reflection point, because the light is concentrated at the point of reflection, and a strong reflection. Similarly, the light gradually decreases, to a variety of low brightness color hue shift, light weakened to some extent, any color will become black, because the object does not reflect any light is black. Table 1 shows that the impact strength of light of color. Pressroom look like station must comply with the requirements, generally require illumination reach 100LX, in order to identify the correct color. Two: Look under the shade under the sun look like kind and there is a difference in the actual production, most of the work under the irradiation power, and each with a certain color of light are. This gives the right to judge the document or product color bring some difficulties, under the shade concept of color, the color change is generally the same lighter color, fill color darker, for example: red under the concept of color, lighter red, yellow to orange, green change dark blue dark, white red. Under the concept of color green, green, shallow, shallow green, yellow green yellow, red black, white and green. Yellow under the concept of color, lighter yellow, magenta, red, blue green, blue, black, white yellow. Under the concept of color blue, lighter blue, lighter blue, green, dark, yellow black, white blue. In the pressroom, generally choose a higher color temperature (3500 ~ 4100K), the color factor as fluorescent look better kind of light, but a bit more attention to the blue-violet lamp. Three: Look at the proofs and prints look look look at the printing proofs, the results in two slightly different feel when watching a different color. This phenomenon is called the case of the reaction has color contrast, changes in Table 2. Why has the color contrast react? This is because, look at the color so that the color of the color of nerve fibers excited and immediately look at other colors, other colors nervous excitement quickly cause color sense, and look at the color of the color in the inhibition of neural excitability after re excited slow, causing a negative reaction hue. This reaction is coupled with a new look at the color hue, to form a new color, so after watching the color change. And there are still laws to change the hue, is to change the terms of the complementary color to look at the color. Understand the issues and understand the three aspects of their variation, when we actually look like it should be noted that in this way can iodine Ju Ji Yan angle for carrying winter fur pillbox ensure print quality and enhance the stability. Then watch the color vision first and then watch the colors change tends red yellow violet red, green and white clay taste yellow-green blue yellow purple micro emerald green fresh taste of red sallow Ziwei blue, purple, green red orange gray green purple violet red and golden yellow-orange product is pale gray-blue purple orange yellow green purple orange lemon yellow, purple, green blue and gray

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