QB/T 4973.3-2016 "Spinning & weaving Ink-jet Printing and Dyeing Part 3: Acid dyestuff Inks" standard specifies the terms and definitions, requirements, test methods, inspection rules, marking, Encasement, transportation and storage of acid dyestuff inks applicable to the printing and dyeing process of Spinning & weaving products. The standard aims to ensure the Stability and Reliability of acid dyestuff inks during the printing and dyeing process, and is suitable for the use of various types of printing and dyeing equipment. The cited normative documents include relevant standards on formaldehyde content, colour fastness, chemical composition testing, etc., emphasizing the use of the latest version of the standard to ensure the safety of printing and dyeing mass and environment.