GB/T 4469-2006
ActiveVat dyes - determination of the reduction speed - Steam process
还原染料 还原速率的测定 汽蒸法
Application Summary AI generated
This standard specifies a steam-based method for determining the reduction speed of vat dyes, which measures how quickly the dye converts to its soluble leuco form under reducing conditions. It is applied in the textile dyeing industry for quality control and process optimization of vat dyes used on cellulosic fibers like cotton. The test is critical for ensuring consistent dyeing performance in batch or continuous dyeing processes where reduction speed affects color yield and levelness.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.