Graphic technology — Colour and transparency of printing ink sets for four-colour printing — Part 1: Sheet-fed and heat-set web offset lithographic printing

This document establishes the essential requirements regarding the color and transparency of ink sets designed specifically for four-color process printing. The technical specifications outlined within this text apply primarily to offset printing operations conducted on sheet-fed presses and heat-set web-fed presses. It provides a framework for evaluating the visual properties of inks to ensure consistency and quality in the final printed output. The standard defines methods for measuring key optical characteristics, facilitating comparisons between different ink products and manufacturers. By adhering to these guidelines, printers can achieve better color reproduction and transparency across various substrates. The content focuses on technical parameters such as colorimetric values and light transmission properties without delving into procedural implementation details. It serves as a reference for quality control procedures in commercial printing environments. The scope covers the fundamental attributes necessary for successful multi-color separation and registration. All parties involved in the supply chain can utilize these metrics to maintain high standards of print quality. This document aims to harmonize testing methods for ink performance in specific printing scenarios.