The Benefits of Using a Sequestrant in Preparation and Dyeing Fiber Reactive Dyes
Calcium, magnesium and heavy metal ions can be found in hard water, peroxide stabilizers, electrolytes as well as the cotton yarn, fabrics and polyester/cotton blends.
The use of a non-foaming sequestrant in preparation and dyeing will improve water absorbency and softness of the fabric. Also, improves winding properties of cotton yarn as well as eliminate precipitation problems found in dyeing.
Reactive Dye Systems prevents issues with:
- Solubility
- Dye deposition
- Unlevelness
- Fixation efficiency in certain red dyes
- Shade reproducibility and shade change cause by trace amounts metal ions
- Fastness
- Enhances brightness of dyeing
- Prevents build-up of scale in machinery
The sequestrant used must not have a de-metalizing effect with metal containing reactive dyes such as Reactive Blue 21.
First Source Worldwide, LLC recommends Sora Quest CM-MI.
Application Process
Preparation: Exhaust Dyeing
Pre-scouring or bleaching: 1.0 g/l
Dyeing:
- In the dye make up tank: 1.0 g/l
- Filling the machine: 1.0 g/l
- Final Rinse: 0.5 g/l
- Continuous processes: 5-10 g/l
If you have further questions, either need a sample, Technical Data Sheet, SDS or Technical Assistance, please click the picture below.
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About the Author: Ed Tessener
