GB/T 17934.9-2026 Graphic technology—Process control for the production of halftone colour separations,proof and production prints—Part 9:Metal decoration printing processes using offset lithography

Scope

This document specifies the requirements for metal offset printing production systems, used to ensure color reproduction on pre-coated white-coated metal substrates.
This document applies to single-sheet metal printing, and does not include preformed or pre-molded metals, such as pre-molded metal cans. This document recommends testing methods for related requirements.
Unlike the methods used in ISO 12647-2 for offset printing on paper or cardboard, this document defines the color values applied to pre-coated white-coated metal substrates using offset printing methods, unaffected by the backing color.

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