Basics

My customer wants to print on a tin can. Pantone? CMYK? Can this be simulated in the proof?

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Requests such as the proof of a printed tin can often reach us. Why can’t such a printed can be “proofed”? A proof is a standardized product. Take the classic ISOCoatedV2 proof, for example; the standard proof for coated printing paper. Here is the definition in brief: “Paper type 1 and 2, glossy and matt coated paper, dot gain curves A (CMY) and B (K) from ISO 12647-2:2004” (Source: farbproofs.de) Metal is printed with a varnish. Neither the colour of the metal of the tin can nor the colour of …

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A proof without profile. Is that possible?

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Proofing service providers are often asked the question: “I have to have a proof done, but I don’t know for which profile. Can I also have a proof made without a profile?” Proofs are standardized products that are created and tested according to a certain set of values. This is exactly the point that distinguishes them from any “colourful printouts”. Specifically: A proof for coated printing paper is produced according to the standard values of ISOCoated V2 (paper type 1 and 2, glossy and matt coated image printing, dot gain …

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Paper white simulation of PSOUncoated

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Since 2009 PSOUncoated has been the standard profile for uncoated paper. Nevertheless, proof service providers often have the problem that at first glance proofs on PSOUncoated often differ significantly from the print result. Immediately visible: the white point of the paper. The PSOUncoated paper white looks very grayish. If, for example, PSOUncoated is proofed on an EFI 9120 XF paper, which actually has a neutral white coloration as paper, then the paper must be recolored by the printer in terms of paper white. This paper-white simulation makes the proof look …

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Why monitor and paper don’t get along when it comes to colour.

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Colour is colour, you’d think. That’s right. But have you ever tried to explain the colour of your new car or your new red wallet to a friend on the phone? You will notice that human colour recognition and the reproduction of the same in another medium is very difficult. The same applies to computers – better: monitors, and printers – i.e.: laser printers, inkjet printers or newspaper printing or offset brochure printing. Why is the red on a monitor different from exactly the same red printed on paper? It’s …

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proof.de Packaging of a Proof/ Digital proof

What’s a proof for? The most important reasons for proofing!

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A proof is reassuring: The proof shows the colour result of the subsequent printing. The customer knows exactly the later result from the proof and is reassured. The printer knows that the customer knows the proof and is also reassured. A proof is fast: Ordered today, delivered tomorrow: Modern proofing service providers work quickly and produce hardly any loss of time in the design and printing process A proof is precise: All professional service providers nowadays work with proof printers that are recalibrated at short intervals. A media wedge with …

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Comparison between eciRGB_V2 (white) and AdobeRGB 1998

Which RGB working colour space is suitable for colour-consistent work?

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In the early days of color spaces Apple and e.g. Photoshop up to version 5.5 set the monitor color space as working color space by default. But it soon became clear that a design office would be working with 10 Macs in 10 different color spaces. A neutral concept was needed. There are many RGB Colour Spaces around. In the area of print media there are currently primarily three different variants: sRGB, AdobeRGB(1998) and eciRGB_V2. The sRGB color space is widely used in digital cameras and is the industry leader …

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Softproof – opportunity or risk?

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Softproof means: The correct color display of a printed product on a monitor. Both a standardized print, e.g. according to process standard offset printing, can be simulated – e.g. a later offset print according to ISOCoatedV2 can be simulated correctly in colour on the screen – and the output on digital terminals such as LFP systems in advertising technology. From a technical point of view, soft proofs are now well controllable. The monitor technology is advanced enough to provide excellent displays with a high color gamut and consistent illumination even …

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Embed profiles for proofing? Yes or No?

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The question often arises whether color profiles should be embedded in the PDF files for proofing. To answer the question, you have to get some answers: The proof should simulate the subsequent offset printing. For offset printing, with few exceptions, the imagesetters have been configured so that a 70% black in the file is displayed as 70% black on the printing plate, no matter what profile was specified in the file. It didn’t matter whether it was coated paper or uncoated paper: 70% in the file corresponded to 70% on …

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What is a Contract Proof? Softproof? Validation Print?

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Very simple: A proof is the simulation of a later print, either as soft proof on the monitor or as contract proof, validation print or as form proof on paper. Softproof: A softproof is the color-accurate representation of the print on a monitor. This can be done either at the agency or directly at the printing machine, for example, so that the printer can coordinate the production run with the soft proof. Contract Proof: The “highest” level of proofing: A contract proof is a very high-quality simulation of the subsequent …

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