New Knowledge: Cigarette Box Proofing Top 10 Dos And Don'ts Of Digital Print Design

New Knowledge: Cigarette Box Proofing Top 10 Dos and Don'ts of Digital Print Design

1. Design of Cigarette Box Proofing Digital Printing

The biggest advantage of digital printing is its handling of originals, which can maximize the use of originals. Color digital printing can achieve offset printing quality when copying originals. If digital printing cannot handle the original well, start with a high-quality original, scan it with appropriate pixels, and use a high-quality scanner, which can often be 300dpi. Satisfactory results can be obtained. Since it is not offset, you should also pay attention to its highlights and shadows.

Second, carefully select the printing material (paper)

Unlike offset printing, digital printing usually cannot use the same kind of paper. In-di go E - The press requires pre-processing of the paper. Xeikon-based presses use web, and not all papers are web-based. It's important to remember that the paper must be able to hold a negative charge, and a glossy, extremely valuable white paper is the best choice for digital printing. Since the polish does not stick or rub off consistently, damage to the recycled material is avoided, and humidity can also disrupt color reproduction. Also, remember to make sure there is enough paper in the plant for at least 24 hours before the job runs.

3. Positioning registration

We always know the design and positioning unit, pay attention to the automatic duplexing features of special machines, and test duplexing items to ensure acceptable results, Xeikon presses print both sides simultaneously for good front-to-back positioning. If bleeding is found, a larger size will need to be used.

Fourth, pay attention to remove stains (defects)

Digital printing cannot print halftone colors (except the indigo 6-color version). Using the PATONE TM Spot-to-CMYK chart to discover the CMYK equivalents, you can generate reasonable substitute components for many PANTONE TM colors. Very thick varnish (colorant) overlays often exhibit a glow that looks like metallic ink.

5. Observation of Field and Overprint

Large area solid printing is the most common problem on tone reproduction based equipment. They may be due to changes in the charge on the surface of the paper as well as the charge itself. To a certain extent, the electrostatic charge on the surface of the sheet also changed, resulting in streaks and uneven colors on solid patches, a problem that the updated system would not have. Noise is created on the ground by using Photoshop or other software. Newer presses rarely have this problem compared to older presses. Conversely, if you want to obtain a large area of black solid, use a thick black ink composed of yellow, magenta, cyan and blue inks in different proportions. It is recommended to work with your supplier to find and find the best ink quantity ratio. Try toning at 60C, 40M, 40Y, 100K or 40C, 20M, 20Y, 100K, using all four colors, not just C inks like offset printing.

Cigarette Box Proofing digital printing can operate at 400 to 600 dot/in, by creating a grid to mimic tonal dots. The grid is limited in size by the tone line chosen and the amount of dots available because it starts with fewer dots in the original. Smooth transitions throughout tones and blends are difficult if only a limited amount of shadow is available, adding noise (in Photoshop) allows for some less dramatic changes in digital printing equipment, Observe its overprint color from dark to light.

6. Observation display (monitor)

The image displayed on the monitor has a wider color gamut than digital printing, and proofing equipment, such as inkjet proofing, has very high resolution, and Epson inkjet proofing can proof at 720 dpi or 1440 dpi. It is best to proof on the machine, for reproduction production, and to make color blocks, for printing or proofing, to correct the color, of course, advanced, advanced color management system is also a good solution. Currently, there are several suppliers that offer an advanced color management system.

Seven, choose the right software

Software such as Quark Xpress, Adobe, Indesign, Photoshop, FreeHand and Illustrater, the colors vary slightly between each software, if the same color produces images in Illustrater, FreeHand and Photoshop, then import them into Pagemaker or Quark Xpress , convert all artwork to CMYK color space, the colors of these three units will not simply match, if necessary, adjust the color to color balance. Avoid text processing and RGB graphics like Microsoft Powerpoint, which tends to work only in the RGB color space. The RIP will convert the RGB color on the fly and may not give you the color you expect.

8. Collection of products

Be sure to include all fonts and attached graphics files (and do not cut and paste to embed graphics), save the file in the appropriate format, digital printing companies prefer to use page description type 1 fonts. You can provide documents to service providers in Adobe PDF format.

9. Post-processing immediately

Digital printing products can cause problems in the binding stage of making, that is, there may be problems such as paper curling or paper particle roughness. Polishes, unlike inks, are present on the surface of the paper and cannot be absorbed. When folded, the polish tends to break at the crease, so avoid the printed design of the crease, or use a high gloss in the crease area or at least detect paper graininess to reduce the breakage, if the print is a book, When printing on a single sheet of paper, registration is a problem, and the graphic part cannot exceed the signature code. Special care or careful consideration should be taken to avoid the graphic portion going over the signature, to avoid overtight registration, and to allow up to 1/8 inch variation. If it is thick paper, make sure the graphics and creases are within the paper signature rather than across the signature to reduce paper and polish cracking. A better performing press can handle these common potential failures. . If your product requirements are very fine, you must carefully select the digital printing machine and carefully inspect the product prints (samples) printed by the digital printing machine.

10. Learn more about product equipment

In most cases, you can't design a variable print job and send it to any service provider, you should be very careful to know what the equipment can and can't do. Then design the job according to its constraints.