GB/T 33050-2016 "Reactive Dyes—Determination of Reactivity" is applicable to the determination of reactivity for KN-type and M-type reactive dyes, using the 5-minute fixation rate as the evaluation indicator for reactivity. The dyeing reaction conditions are controlled using a laboratory dyeing machine, and the absorbance of the solution before and after the reaction is measured with a spectrophotometer. Reactivity is determined by calculating the correlation between the dye uptake rate and the residual solution after soaping. It specifies that the deviation in parallel tests must be controlled within ±2%, providing data support for the optimization of dyeing processes.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G55 | ICS | 71.100.01;87.060.10 |
| Release Date | 2016-10-13 00:00:00 | Implementation Date | 2017-05-01 00:00:00 |
