Precautions for printing

xiaoxiao2021-03-06  56

What should I do before the Filip?

1. Most of the file format The output center uses the Fangzheng Grid (PSPNT) network point color output system, and there are also some systems using Harry or Israel. But it has a same point, supports the PostScrit printer description file. That is, the venue of the suffix .ps. Currently popular design software: Photoshop, PageMaker, Coreldraw, Illustrator, etc. support PS printing. The S2, PS2, and PS files generated by some Fang Zheng Software, such as the square book, Wisi, Feitun, can only be output with PSPNT, and other output systems are not supported. Others have some word processing software like Word, WPS2000, in theory, can also generate PS files, and can output a Philippine, but actually pre-printed output must be processed, such as imposition, plus settlement line, cut line, etc. And Word, WPS2000 and other software can be said in this area, especially color draft, once it is done, then post-processing, will give printed output staff to bring great difficulties. Therefore, try to use PageMaker and other professional design and typesetting software.

2. About the format, accuracy of the picture. Modern offset prints are unoccupied (four-color print), which is divided into four colors: blue (c), products (m), yellow (Y), black (four-color network, refined, sunburn into PS version After the offset print machine, it is a color printing product. Therefore, the printing picture is different from the usual computer display picture, and the picture must be converted to the CMYK mode, and the RGB model or other model cannot be used. Because output When it is converted to the outlet, that is, the accuracy: DPI, the picture is theoretically accurate, the accuracy is minimum to reach 300Dpi / pixels / inch, so the pictures that usually use cannot be displayed, don't pass the ACDSEE or other software Seeing very beautiful, it is also very beautiful after zooming, it is considered to be used as printing. Be sure to open by Photoshop, with image size one to confirm its true accuracy. For example: a picture resolution is 600 * 600DPI / pixel / inch, Then, it can now zoom in to more than double use. If the resolution is 300 * 300dpi, then it can only shrink or the original, can no longer zoom in. If the picture resolution is 72 * 72dpi / pixels / inches, you must narrow the size (DPI accuracy), which is relatively larger) until the resolution becomes 300 * 300dpi, can be used. (Use this feature) Re-define the pixel "is different.)

3. About the color of the picture About the printing of prints, stacked, hollow, specialty, etc., you can consult some related print basic knowledge, I will explain it here. Just say some common sense must be paid. The first is to hollow problems. For example, there is a row of blue characters on a red bottom plate, then in the red version of the Philippine, you must be empty. Anti-blue version is also. The second is a stacked problem. For example, there is a black word on a red bottom plate, then in the red version of the Philippine, it should not be hollow. The second is the four-color word problem. This is also a more common problem. You must check the black word in the publication file, especially the small word, is there only blackboards, and should not appear on other tri-color versions. If it is, the quality of the finished product is placed, and the RGB graph is turned into a CMYK graphic, and the black text will become four-color black. It must be processed to output a Philippine.

4, about the hook accuracy at the time of output. Hanging network accuracy is generally called hanging mesh, the higher the accuracy of the hanging network, the more beautiful printing products, but with paper, ink, etc. If you print a high picture of the net mesh in the general news (newspaper), then the picture will not become more beautiful, but will become a fuss (terrible), so you must understand your print before output. What is the printing paper, and then determines the accuracy of the hanging network. Generally common paper and hanging mesh accuracy: imported copper paper or non-adhesive, etc.: 175-200 line imported cladding paper, etc .: 150-175 Line general adhesive paper, etc: 133-150 line news: 100-120 lines, Such push, the worse the quality of the paper, the lower the net, and vice versa. Summarize, the problem that must be paid to the previous output is:

I. Select the more common design and production software, such as PageMaker, etc., as much as Word, etc.

Second, the pattern of pictures in the text must be CMYK mode, with a minimum of 300 * 300dpi / pixels / inches.

Third, check whether the word in the publication is a four-color word, if yes, change it to monochromatic 100% black.

Fourth, if you use PageMaker, Wisi, Founder Book, Illustrator, you must link it to the image file and the original file one and copy.

5. Photoshop files are best for PSD (uncorporated layer) files to make it easy to modify.

6. The font is best to use common fonts, such as Fang Zheng, Wen Ding. Try not to use less fonts. If used, CorelDRAW and Illustrator first convert text into a curve (OUTLINE), avoid problems that cannot be output due to no such fonts without such fonts. If there is a pilot file, the tonic file must be copied.

7. Clearly the output of the output of the center prints, printing, printing paper, etc. to facilitate the imposition and hanging net.

Eight, if the contents of the two pages is the same, the black text is different (often encounters), then only the first page of CMYK is four colors, and the K color of the second page can be used, and saves money. If there is only two colors (such as red black) and the printing requirements are not high, simply output it in a color, do not need to be divided into two

Strong and concurrent processes in printing processes

A. What is the gloss? On the surface of the print surface (or spray, print), a colorless and transparent coating (glare), flowing, drying, and press, formation of a layer on the surface of the print Thin and uniform transparent bright layer. The superhream includes comprehensive light, topically, gloss, matte (extinction), and special coatings, etc. B. Why do you want to go to the light? To beautify the print, protect the printed product, strengthen the propaganda effect of printing products and improve the practical value of printing. The surface of the printing material after the upper light appears more smooth, so that the incident light produces a uniform reflection, and the ink layer is more light. The super light is used to surface coating of the printing of the print. Appropriate steps are taken before the print is performed after printing, protective treatment of paper or cardboard printing. The printed matter is subjected to a layer of bright membranes in the surface afterwards. Its application range is: 1 books, such as guardings, cover, inserts, calendar, cuisine, advertising, publicity samples, etc., can enhance the print, bright color. 2 Packaging paper products, such as paper bags, envelopes, trademarks, etc., play the role of beautifying and protecting goods. 3 cultural products, such as playing cards, postcards and printed patterns, can play anti-mechanical friction and chemical corrosion. 4 daily necessities, food, etc. Such as cigarettes, food, detergents, etc., can play moisture, anti-mildew effect. 5 The copper foil is placed on the hard cover, which can make the appearance, its brightness is very high, very like gold. If the copper is less than the base, good adhesion performance can be obtained after passing through the upper light. C. What is the technical requirements for the upper oil oil? The ideal superior oil has the following performance in addition to colorless, tasteless, high gloss, fast dryness, chemical resistant, etc., must also have the following performance. 1 The membrane layer is high, not discolored. The decorative printing should obtain excellent super-light effects depending on the surface of the sheet forming a layer of colorless and transparent film, and the graphic is not discolored after drying. And it is not possible to discolish, and yellow is discolored due to long expansion. 2 The membrane layer has a certain wear resistance. Some of the printed prints require a certain wear resistance and scratch resistance after the light. Because of the high-speed cartridge machine, cardboard box packaging machine, books, etc., the surface of the print is frozed, so we must have wear resistance. 3 has a certain flexible elasticity. Any of the bright films formed on the surface of the printing surface must maintain better elasticity, in order to be adapted to the flexibility of the paper or cardboard, it is not damaged or dry, and falls off. 4 The membrane layer is resistant to environmental performance. Some post-light prints are somewhat for all kinds of packaging cartons, which can be able to protect the product being better than the packaged product, and the environmental resistance is important. For example: packaging of food, cigarettes, cosmetics, clothing and other goods must have moisture-proof, anti-mildew performance. In addition, the chemical properties of the membrane after drying are stable. It cannot change performance in contact with chemical substances such as weak acid or weak base in the environment. 5 has a certain adhesion to the surface of the print. Due to the affected density value of the surface of the surface graphic ink layer, the print is greatly reduced, in order to prevent dry cleavage and disengage of the membrane layer in use, requiring the membrane layer to be strong, and for the ink and ink. The excipients have a certain adhesive force. 6 The level is good, the film is smooth. A wide variety of printing materials, plus the impact of printing graphics, surface absorbance, smoothness, wettability, etc. The level is good, and the film surface is smooth after film formation. 7 post-printing processing is wide. After the print is high, it is generally necessary to process after processing, such as mold processing, hot and iron-based aluminum processing. therefore. Requires the preference of the highlight film to be processed to be wider. For example, after the heat resistance is good, after the iron is filled with aluminum, it cannot produce a sticky phenomenon; high solvent resistance, membrane layer after drying, can not foam, wrink and hair due to the effect of binder in the post-processing Hicking. D. How to choose the glossy oil? The choice of glare oil must meet the basic principles of scientific, economic, and practical. The so-called science refers to the various physical and chemical properties in the upper and use of printing.

For example: the cover or protective seal of the book, the album is required, not only high of transparency, but also wear resistance, and variety of resistance; food packaging, highlight oil, require no toxicity and certain moisture, anti-corrosion performance; The oil oil in the package of the package is required to high chemical stability, and it cannot be discolored, flour, or the yellowing, or a compact, or due to stacking. The economy means that when choosing glossy oil, it must be said to the printing oil and the printing, avoiding high-grade glazing, low-grade printing. For example, high-grade printing is machined on the high-grade printing, a highly cost-to-quality, ultraviolet light curing, or solvent-based glossy oil with acrylic resin is the main agent; in contrast, if the print is a major product such as textbooks, In moderate use cost, the quality can meet the general solvent type glare oil required for processing requirements. Practical, refers to the choice of light oil to match the upper light device. For example, solvent-type upper oil oil is only suitable for conventional superiors; ultraviolet curable upper oil, must be used on a machine equipped with an ultraviolet drying device; alcohol-soluble or water-soluble upper light oil, super light must be met The drying requirements of light oil (generally required drying the long 6m or more, temperature 65 ° C or higher). In addition, it is necessary to consider whether it is necessary to save materials, but also suitable for mechanized mass production, try to reduce production costs, less investment, and output. The choice of gloss oil must pay attention to safety, health and environmental requirements. Considering safety, it should be good in storage performance, not easy to combustion; from hygienic and environmental protection considerations, you should use ignorant, non-toxic, and odorless glare. The production site and the machine ventilation conditions are good, and the selection range can be appropriately wide. Conversely, it should not be used to prevent the body's health and pollution to the environment. E. What is the requirements for the quality of the upper light oil coating? In order to achieve the ideal super-light effect, in the coating process, the upper oil coating should meet the following requirements: 1 shot coating layer, no sand, no bubble And no leakage. 2 Appropriate amount of coating, the coating can complete the dry clutch film at a certain temperature and coating the car. 3 Coatings are not affected by printing ink performance, printing graphic area and integral density value, and the level is good, and there is a certain adhesive force on the surface of the print. 4 The coating is in the side of the collateral, which can be adhered to the surface of the ribbon, and it can be easily peeled off after cooling. F. What are the factors affecting the quality of the superior? The factors affecting the quality of the superior are: paper performance, temperature, ink and printing product crystallization. 1 Influence of paper performance on superior quality. The influence of paper on the quality of supernight, mainly in the influence of paper smoothness on the quality of supernum. Paper of the high pulley, the effect is remarkable, while the smoothness is low, and the effect after the light is poor, because the glazed of the glossy is almost all absorbed by the paper or cardboard of the rough surface. In order to solve this problem, you can last on the previous queen, or two light. 2 Influence of temperature on the quality of super light. The temperature at 18 ° C ~ 20 ° C can achieve the most ideal effect. In winter, the glossy oil is very easy to solidify, and the surface of the upper light product is uneven. In order to solve this problem, the glare oil needs to be stored in the incubation. If the temperature of the upper light oil is too low - less than 10, although the glossy oil is transported to the room at room temperature to 20 ° C, it is still not used, and it is still not possible to properly add the upper oil stock solution to the solvent dilution. 3 Printing ink on superior quality. The printing ink used after printing after printing, must have solvent resistance and heat resistance, otherwise the print graphic will discharmatically or created by a wrinkler. The solution is to pay attention to the following points when selecting printing ink: a. The aluminum-resistant, ester solvent, acid and alkali-resistant ink must be used. B. It is necessary to select a long-lasting and lustrous ink. C. It is necessary to select a good adhesive ink with a paper. 4 The effect of printing products crystallization on the quality of super light.

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