Safety data sheet: a widely used system for cataloging information on chemicals, chemical compounds, and chemical mixtures. SDS information may include instructions for the safe use and potential hazards associated with a particular material or product. The SDS should be available for reference in the area where the chemicals are being stored or in use. There is also a duty to properly label substances on the basis of physico-chemical, health or environmental risk. Labels can include hazard symbols such as the European Union standard symbols. A SDS for a substance is not primarily intended for use by the general consumer, focusing instead on the hazards of working with the material in an occupational setting.
The order in which inks are deposited by a printing device. In CMYK inkjets the sequence is yellow, magenta, cyan and black.
Shelf life defines the usable period of the product, beyond which the performance cannot be guaranteed to be within specifications, or that damage will not occur to printing presses.
Ink in which the pigment is dispersed in an organic solvent.
A visual representation of a colour’s spectral data as the colour’s “fingerprint”. A spectral curve is plotted on a grid comprised of a vertical axis of the level of reflectance intensity, and a horizontal axis describing the visible spectrum of wavelengths. The percentage of reflected light at each interval is plotted as points on a curve.
The most precise description of the colour of an object. Since an object’s colour appearance results from light being changed by it and reflected to the viewer, spectral data describes how that reflected light was changed. The percentage of reflected light is measured at several intervals across its spectrum of wavelengths, which is then visually represented as a spectral curve.
Special fluid designed to have a very slow evaporation to keep ink delivery systems in a wet state. Printheads are often shipped with such fluids in them to preverve the status of the nozzles.
The forces of cohesion at the surface of a liquid which encourage the tendency of a liquid to reduce its exposed surface to the minimum area. Molecules within a liquid are attracted equally from all sides, but those near the surface experience unequal attractions and are thus drawn towards the centre of the liquid mass by this net force.