GB/T 21875-2016 "Dyes—Determination of Build-up" is applicable to the determination of dye build-up. The method involves preparing dye solutions of different concentrations for fabric dyeing, measuring the color depth value of the dyed fabrics using a spectrophotometer, and plotting the color depth-concentration curve to evaluate build-up. It specifies dyeing process parameters, fabric selection, and color depth calculation methods. Parallel test results must be consistent, providing data support for optimizing dyeing concentrations.
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 | 2016-06-14 00:00:00 | Implementation Date | 2017-01-01 00:00:00 |
