Spectral photometer
Spectral photometers (or spectrophotometers) are high-quality colorimeters that can measure and accurately describe any colour.
Lexicon
Spectrophotometer
Spectrophotometers are high-quality colorimeters that can measure and accurately describe any colour.
Spot Colour
Spot colours are inks that do not belong to the CMYK colour space, but are printed as a real colour in an additional inking. The most important representatives are PANTONE, HKS and TOYO colours.
sRGB
sRGB is the most widely used RGB colour space, and was created for monitors by Hewlett-Packard and Microsoft in 1996. sRGB is the standard colour space of all inexpensive digital cameras and scanners.
Standard light Retrofit LED
An LED is a ‘light-emitting diode’ and in the graphics industry stands for the new ‘LED’ light, which has replaced older light sources such as neon tubes and tungsten lamps. Neon tubes are mainly known from the D50 or D65 standard light range. Today, LED light sources are predominantly used for standardised light in particular, as they can be spectrally adapted better and often emit a more harmonious light spectrum than neon light. In modern standardised lighting, it is possible not only to set up standardised light for one type …
Standardized light
Standardized lighting refers to defined lighting conditions under which viewers can uniformly view and evaluate prints or objects. The most important standardized lighting type is D50 for printmakers (colour temperature: 5,000 Kelvin).
Sun Chemical
Sun Chemical is a major manufacturer of printing inks and as such is closely associated with PANTONE. Sun Chemical has a long history dating back to the 19th century. The company was founded in 1879 and originally began as a manufacturer of printing inks. Today it is part of the DIC Corporation, a Japanese chemical group. Sun Chemical plays a central role in the printing ink market, as it is one of the largest suppliers of printing inks and materials in the world. The company offers a wide range of …
SWOP
Specification for Web Offset Publications. Name of an organization and a collection of North American printing standards that define, among other things, the colour values of the primary colours cyan, magenta, yellow and black. They refer to the ISO standard, but are not identical. There are also SWOP specifications for proofing.
TL 84
Light of the neon fluorescent type F11 or TL84 is the classic neon light, the typical “department store lighting”. TL84 represents a three-band fluorescent lamp with 4000 Kelvin. This light is installed in many standard light boxes, to compare the reproduction of materials or surfaces with D50 or D65 standard light.
Tonal Value Increase
Dot gain or Tonal Value Increase is the difference between the halftone values in the original and the halftone values in print. This difference is caused by printing technology.
Transparent
Transparent printing inks that are not opaque are used in four-colour printing.
Special colours such as PANTONE are also usually transparent.
Trimbox
The Trimbox is the final format of a PDF file without bleed. For an A4, the Trimbox of the PDF is therefore 210x297mm, while the Bleedbox would be 216x303mm with 3mm bleed all around.
TVI
TVI is the Tone Value Increase. Print dots increase when they are printed on paper. A 50 % magenta on a printing plate can show a tone value (TV) of 70 % when printed, so the TVI is 20 %. In the past, these measurements were referred to as ‘dot area’ and ‘dot gain’, which correspond to the tonal value (TV) and the dot gain (TVI). The paper was always 0, the solid tone always 100. This dot gain was used to adjust a printing press to a specific printing …
UCR
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.
UGRA
Ugra is the Swiss Centre of Competence for Media and Printing Technology. The UGRA is particularly active in the areas of control agents and certifications.
Uncoated paper
Refers to all papers that have not been finished with a coating application.
Validation print
A Validation Print is a color-accurate print according to ISO 12647-8. The Validation Print has higher color tolerances than the contract proof according to ISO 12647-7 and, unlike the contract proof, is NOT color- and legally binding.
VDP
Variable Data Printing (VDP) is a digital printing technique that makes it possible to customise individual elements within a print job. This can include text, images, graphics or even entire layouts. VDP is often used for personalised marketing materials, such as direct mail, where each printed item contains information specific to the recipient. VDP uses databases and software to control variations in the printing process, enabling a customised approach. Application and advantages of VDP VDP is used in many areas, including Marketing and advertising: Creation of personalised mailings that are …
Water-absorbent
The technical term for this is hydrophilic (ancient Greek: hýdor “water”, phílos “loving”). Hydrophilic surfaces absorb water and can thus be wetted with water.
Water-repellent
The technical term for this is hydrophobic (ancient Greek: hýdor “water”, phóbos “fear”). Water rolls off hydrophobic materials without moistening them.