The CIELAB colour model was defined in 1976 by the Commission Internationale de l’Eclairage and describes all colours that can be perceived. It is a mathematical colour model in which the spectral properties of an object and the perceptual properties of our visual system are set off against each other. CIELAB, or in short: LAB, has become generally accepted until today wherever exact colour calculation is required, whether in colour measurement, colour formulation or in the common operating systems: Colour management usually works via CIELAB.

Late binding

In a “Late Binding” workflow, RGB image data is inserted into the layout during separation, and also embedded into the print PDF during PDF export to the print file. The conversion into the print colour space takes place at the last possible moment, e.g. in the RIP of the printing company.

The advantage of this is that all colour spaces are embedded unchanged in the PDF, and the separation can take place as late as possible and thus as specifically as possible. The disadvantage is that the layout designer can never see and control the separated CMYK data and therefore has to give up control of the separation.

Further workflows are Early Binding and Intermediate Binding.

Linen tester

A small magnifying glass in reproduction and printing technology with 8 to 10x magnification. Linen testers are often used in pre-press to check screens or registration accuracy.

The linen tester was invented to check the quality of fabrics. In the textile industry it is used for measuring the number of weft and warp threads in a certain area of the fabric.

It’s also called “mesh counter”.

LWC paper

LWC paper (Light Weight Coated) is a light-weight, two-side coated web printing paper. Brochures and catalogues are often printed on this paper.

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