When walking in a department store supermarket, consumers often shelves dazzled the wide variety of goods, in particular the strong visual impact of the labels, especially in the first place robbed consumers of eyeball, pleasing labels not only improved the goods shelves effect, also enriches the consumer shopping experience.
Don't look at the size of the label is not big, its production process is not so easy, no matter which link the negligence is likely to lead to the final effect is not very desirable, lung of label printing color printing group will arrange some matters needing attention are discussed.
Determine the general principles of the label printing color sequence
1. According to the nature of the paper color series
The tension of different paper, smoothness, whiteness, fiber tightness and absorbency eligibility is different.Normally, the absorbency good paper, long printed group suggested that jump in the dark to bright color;For poor ink absorbency of paper, should be printed light and dark, the reason is that bright color such as yellow ink printing ink can cover paper defects such as wool, off powder.
2. According to ventnor, black map point printing color sequence
Give priority to with text, lines, and black field print generally USES cyan color series - magenta - yellow - black.
In general, four color printing machine color series of the first color sequence is usually black, but some label print, can have the most black edition is the text, and if the substrates is poor quality of coated paper stickers, the first color sequence of black ink will be partially transferred to the second color sequence of roller surface, thus susceptible to ghost.In order to avoid this situation, black will not be able to put the first printing color sequence, should be put on the third or final printing color series is more appropriate.
3. According to the size of the manuscripts network coverage in the area of printing color sequence is determined
When the plate on the graphic area is large, especially when the full version, usually want to put it on or after a final order of printing;On the other hand, the first printed large area and small area.Although large ink transfer effect is very good, but for small area, all ink dieyin in another color (large) ink film layer, can affect the effect, so the author suggest first printed graphic part of the network coverage area is small, and print graphic part of the network coverage area is large.
4. The flat screen and field part of printing color sequence arrangement
To transfer to achieve better label printing quality, avoid scratches in the printing process, make flat screen soft even, field level, inky bright, the author suggested flat screen printing graphic part first, after printing field.
5. Evaluation content and features of the design draft before printing color sequence is determined
When meets the warm color attune is given priority to the print, the author suggest put the magenta and yellow after unit;While cold tonal give priority to print, jump magenta, cyan after seal.This is due to the different printing color sequence will affect the final print is tonal, for example by the magenta, cyan - yellow color printing, color can slant green products;If cyan - magenta - yellow color series, will be more red.For dieyin the color deviation, we can be modified in the process.In addition, in order to emphasize the mass-tone attune of the label print the picture, we can also make full use of the different printing color sequence generated by the special effect to adjust the color deviation.
6. According to the nature of the ink printing color sequence
Printing process, when we first printed black text part after the magenta, yellow, or when the color graphic part, red or yellow text, the author recommended printing field background, first printed black text printing color sequence.Transparency low ink dieyin on colour, prone to color in order after printing, so you should jump in low transparency of ink, printing ink transparency high advisable.
7. According to the ink viscosity to printing color sequence
Four color printing ink viscosity, according to the decreasing order of arrangement is roughly as follows: black > green > magenta > yellow, commonly used in four-color printing press black - cyan, magenta, yellow, color series in order to increase the robustness dieyin, prevent "string color" images caused by the phenomenon such as fuzzy, dull, matt.Two-color machine is generally USES cyan - magenta - black - yellow printing color sequence.
8. According to the drying speed arrangement of printing ink printing color sequence
In general, long printed group suggest first to slow drying inks, printing ink drying speed is fast.Yellow ink than magenta ink drying speed about 1 ~ 2 times, magenta ink about 1 times faster than cyan ink drying speed, black ink drying speed of the slowest.
When the need on the label print gold or silver ink, because gold and silver ink printing ink adhesion is very small, as far as possible on the final color printing.But these two kinds of ink strong hiding power, they will cover all of my background, factors must be considered before printing plate making, if do not pay attention to such questions, leads to the text is not clear or missing.
In yellow in the four color printing ink on the superiority of the final: one is the transparent yellow ink, arranged in the final color printing easy enough white light into the upper and lower ink layer, resulting in vivid, lively colour, is advantageous to the print better color reproduction;Second, yellow ink has fast drying speed, will arrange at the last yellow ink color printing, can prevent yellow ink drying too fast caused by vitrification, and can make full use of the printing area is large, oxidation of conjunctival the characteristics of fast speed, its cover in other ink layer surface, make the print gloss.
In short, in specific printing process, flexible according to dieyin rule to choose the best printing color sequence, thus to foster strengths and circumvent weaknesses, to control the color deviation, can print out the ideal of the print.
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