Paper white of many paper manufacturers and online printers measured

We spectrally measured the paper white tone and the proportion of optical brighteners of over 1,000 papers of the most important paper manufacturers such as Berberich and Papier Union as well as online printing companies such as Flyeralarm and wir-machen-druck.de.

Example: Spectral data comparison of Antalis Coqueror CX 22 white for the measurement standards M0 and M1. Below you can also see the color deviation in Delta-E00 of 1.97 and the two paper white values in LAB and LCH.

Only a few paper manufacturers currently publish data on paper whiteness and the proportion of optical brighteners in their papers, but only technical indicators such as whiteness according to ISO 2470-2 or CIE ISO 11475. However, designers can hardly record paper whiteness with these values. In addition, it is not possible to read from these data whether and what proportion of optical brighteners the paper has.

Example above: Spectral data comparison of Antalis Coqueror CX 22 white for the measurement standards M0 and M1. Below you can also see the color deviation in Delta-E00 of 1.97 and the two paper white values in LAB and LCH.

Left: CGATS.17 Data for measurement conditions M1 and M0 for paper Antalis Conqueror CX 22 white

We have therefore measured the most important papers and dyes of all central paper producers and paper distributors as well as online printers in the three measurement standards M0, M1 and M2. From the difference in the paper whiteness of the two measurements M2 (UV cut without UV portion) and M1 (ISO 3664:2009 with noticeable UV portion), we determined the color distance on the yellow-blue axis of LAB in Delta-b and derived from this the proportion of optical brighteners according to Delta-B according to ISO 15397 and evaluated it.

Delta-B conversion: OBA share in the paper

Delta-B < 1 = faint OBA
Delta-B < 4 = little OBA
Delta-B < 8 = low OBA
Delta-B < 14 = moderate OBA
Delta-B > 14 = high OBA

Spectral data of all measured papers for download

Parallel to the images of the spectra, we have also provided spectral data in CGATS format for the measurement modes M0, M1 and M2, which can be downloaded for any paper. These values can be used, for example, in proofing software to calculate a paper white simulation for a specific production paper.

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PANTONE and HKS color deviations in proofing updated


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PANTONE and HKS color deviations in proofing. All PANTONE color systems and HKS and HKS 3000+ for proofing standards without optical brighteners and standards with optical brighteners have been updated in the past months.
PANTONE and HKS color deviations in proofing. All PANTONE color systems and HKS and HKS 3000+ for proofing standards without optical brighteners and standards with optical brighteners have been updated in the past months. https://shop.proof.de/info/spot-color-tables.html

Current proofing systems can reproduce spot colors such as HKS or Pantone very well. With the Fiery XF 6.5.2 proofing software and the Epson SureColor-P9000V Spectro proof printer, we have evaluated the color deviation in Delta-E00 with which the various PANTONE and HKS colors can be proofed. On shop.proof.de, the tables are now available for all important PANTONE and HKS color systems, sorted by color fans.

A distinction is made between the proofing substrates that we use, since the surface texture and the paper white also have an influence on the representability of the colours. The color deviations were calculated by the proofing software on the basis of the measured color space of the proof.de proofing system. Deviations are therefore possible in practice. However, it turns out that almost all spot colors can be simulated quite well in the large color space of our proofing devices. The smaller the ∆E00 value, the smaller the color distance from the spot color reference to the proofed color. Higher ∆E00 values show which colors can be reproduced more poorly in the digital proof.
As a rough guide: From ∆E00 > 1 a color difference is visible to the human eye, below it it can only be measured, but not seen.

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