Heaven 42 is a high-white (CIE = 157), coated fine paper of Scheufelen in Lenningen in Baden-Württemberg, Germany. Heaven 42 is especially suitable for technical motifs (shades of gray, silver tones from 4c, strong chiaroscuro contrasts). These perform on Heaven 42 particularly brilliant and neutral. For warm tones (z. B. skintones) color adjustments are recommended.
Color Adjustments for Heaven 42
The absolutely white paper shade of heaven 42 has effects in printung – as well as prepress. With an unchanged separation (eg with ICC profile “ISOcoated_v2”), the printed image with the same color and dot gain affects considerably colder.
This property is good for the implementation of technical designs. For pictures of people and skin tones, however, the high degree of whiteness results in a noticeable blue tint. Therefore, an adjustment of the colors to the desired color appearance is required.
The Proof GmbH is able to deliver proofs of Scheufelen Color Profiles for Heaven 42. The proofs are printed on paper with optical brightning agents (OBA) and measured in M1 mode taking into account the optical brighteners.
More information can be found on www.heaven42.com
HKS is a German color system, which was developed by the companies Horstmann-Steinberg, Kast + Ehinger and H. Schmincke and Co., hence the name: HKS. It is quite common in Germany, but plays nor role internationally and is increasingly driven by Pantone color as a global system to the brink.
HKS is available in four different color guides:
HKS K for coated paper
HKS N for uncoated paper
HKS Z for newsprint
HKS E for rotogravure
The original 88 colors were a few years ago expanded with the new HKS 3000+ color fan to 3520 colors that do not really have different colors as opposed to Pantone, but have more shades through overprinting the actual colors with black. By doing so, 39 shades per color are generated.
HLC is an easy to understand representation of the CIELAB colour space. The CIELAB colour model was defined in 1976 by the Commission Internationale de l’Eclairage. It is a mathematical colour model in which the spectral properties of an object and the perceptual properties of our visual system are offset against each other.
CIELAB ( or: Lab-colours) has become generally accepted until today, wherever exact colour calculation is required, be it in colour measurement, formulation or in the common operating systems: Colour management usually works via CIELAB.
Instead of the rectangular coordinates for L, a and b the CIELAB polar coordinates HLC can be used.
Here, the vertical L-axis is identical.
The horizontal position of a colour location is determined here by the angle H to the positive a-axis (counter-clockwise and in the unit degree) and the radius C, the distance to the L-axis.
HLC, also LCh or LCH(ab), stands for
• Hue (colour tone [angle])
• Lightness (brightness)
• Chroma (saturation)
and is much easier to comprehend than the abstract a and b coordinates, for which hardly anyone can imagine the corresponding colour.
Means water-attracting, moisture-loving (ancient Greek: hýdor “water”, phílos “loving”). Hydrophilic surfaces absorb water and can thus be wetted with water.