标题: DIN ISO 2846中对四色版胶印油墨色相的定义 [打印本页] 作者: 清泥 时间: 2010-4-1 22:04 标题: DIN ISO 2846中对四色版胶印油墨色相的定义 DIN ISO 2846 Parts 1 and 2 define the process colours for the four-colour offset process. DIN
ISO 2846-1 specifies the colour values for sheet-fed offset and web-offset heatset inks and DIN
ISO 2846-2 specifies the colour values for web-offset newspaper inks, which must be obtained
under defined conditions using a printability tester and on specific test stock. These two standards
therefore form the basis upon which printing ink manufacturers work, but actually relate solely to
proofing in the laboratory.
Colorimetric values per DIN ISO 2846-1
(standard illuminant D50, standard observer 2°)
Ink （CIELAB value） L* a* b* ΔEab*
Yellow 91.00 –5.08 94.97 4.0
Magenta 49.98 76.02 –3.01 5.0
Cyan 56.99 –39.16 –45.99 3.0
Black 18.01 0.80 –0.56 –
no tolerance band for L*, rather an upper limit作者: hhx918 时间: 2011-5-17 08:23
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