Under Color Removal or Under Color Reduction is used when separating LAB or RGB to CMYK. The goal of under color reduction is to reduce the CMY parts in black pixels in order to reduce the overall color coverage.
Colours from only one or two primary colours, e.g. pure cyan or pure red from magenta and yellow, are not affected by UCR. The UCR process is only used for colours consisting of all three chromatic colours.
The method is permanently implemented for separations via a CMYK ICC profile and cannot be changed. The limitation of the maximum ink application to 330 or 300% is a result of UCR, because higher ink applications would on the one hand prolong the drying times considerably, and very thick layers of ink can become cracked, e.g. when folding paper.
A second process is GCR – Gray Component Replacement.
More articles related to this topic:
We passed the first proof certification for the 7C proof under FOGRA55
A few days ago Proof GmbH was the first company to be certified for proofing for the new 7C exchange colour space FOGRA55. Fogra has developed characterisation data for extended multicolour printing with the printing colours CMYKOGV – i.e. cyan, magenta, yellow, black (contrast), orange, green and violet – FOGRA55 as part of a research project over the past few years. The characterisation data and the ICC profile Ref-ECG-CMYKOGV_FOGRA55_TAC300.icc have been published on the Fogra website in recent weeks. We have now carried out the certification via GMG ColorProof, as … read more
Cross-media colour management really works
Peter Jäger is an expert in colour management that reliably works across the boundaries of printers and monitors, web and print – essentially: cross-media.
Fogra60 proofs for metal decor printing available
From now on you can order proofs for metal decor printing on white sheet metal at proof.de: The ICC profile for Fogra60 is Metal-Printing_MPC1_FOGRA60.icc
“Digital First” often means “Colour Problems Second!”
Whether it’s a large global corporation or a small company, the following often applies to designs or redesigns today: we develop everything for digital first.
Proofs with Digimarc EAN codes and verification
Digimarc is a digital watermark that can be used to embed information in images, videos or other media. Digimarc watermarks are invisible to the human eye, but remain recognisable to special software or devices. Digimarc is becoming increasingly popular in the packaging sector in particular, as this technology allows the digits of the EAN barcode and more to be applied invisibly to all areas of the packaging. Digimarc and EAN barcode at the supermarket checkout When scanning at the checkout, the checkout staff do not have to search for the … read more
PANTONE Find a Color No Longer Available Without Registration
Shortly after Adobe’s announcement to remove PANTONE colours from their products, PANTONE removed the popular PANTONE Find a Color from their website
New PANTONE Formula Guides with incorrect ink formulations
Several errors have crept into the new PANTONE 2023 fan decks. In both the PANTONE Solid Coated and the Solid Uncoated color fans, there are colours for which the new ink formulations are incorrect. In the PANTONE Formula Guide Solid Coated fan 2023, PANTONE 107 C and PANTONE 108 C have absolutely identical ink recipes, as well as PANTONE 113 C and PANTONE 114 C. As the colors differ, this cannot be the correct. Several errors in the PANTONE Solid Uncoated fan 2023 In the PANTONE Solid Uncoated fan 2023 … read more
New certified proof papers at proof.de
In recent years, various problems have arisen with our previous proof paper supplier. On the one hand, we sometimes had to wait more than three months for paper deliveries; on the other hand, we sometimes had significant problems with batch-to-batch discrepancies, surface defects and much more. After lengthy deliberations, we decided in December to replace all the paper. We therefore received pallets of new paper at the turn of the year, which we are now gradually incorporating into our production. There will be no hard cut, but the new papers … read more
Proof.de: New video online
In this short image video we – the Proof GmbH – introduce us and our work. Find out who we are and what drives us. What do you think of our short film?
PANTONE surveys users online about product and service direction
Today I received an email in which PANTONE asked how it should orientate its products and services in the future. The users were asked which countries, industries and company sizes they come from, but also what PANTONE products should look like in the future and what customers would be prepared to pay for PANTONE services in the future. Question: How much can PANTONE services cost? PANTONE appears to be orientating itself on the PANTONE Connect prices: All price queries have the lowest price category < $ 7,- / month, i.e. … read more