MST® Quality Reactive red 3BS
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MST® Quality Reactive red 3BS is a kind of reactive dyes and reactive dyes. It has bright color, good level dyeing, simple dyeing method, high dyeing fastness, complete chromatogram and low cost; MST® Quality Reactive red 3BS is mainly used in cotton, linen, viscose Dyeing and printing of glue, silk, wool and other fibers and their blended fabrics.
Basic information of MST® Quality Reactive red 3BS
Other names: Quality Reactive red 3BS, Reactive Red M-3BE, Reactive Red M-3BF, Reactive Red SP-3B, Reactive Brilliant Red ME-3BS
C.I.: Reactive Red 195
Molecular formula: C31H19ClN7Na5O19S6
Molecular weight: 1136.32
Molecular structural formula:
Quality Reactive red 3BS basic application performance
1. Solubility of Quality Reactive red 3BS:
There are 4 -SO3Na water-soluble groups on the Quality Reactive red 3BS dye matrix, so the solubility of Quality Reactive red 3BS is very good, the solubility is more than 100g/L at 50°C, and color spots rarely appear during application.
2. Quality Reactive red 3BS reactivity:
Quality Reactive red 3BS has two active groups: monochloros-triazine and vinylsulfone. Because the reactivity of vinylsulfone active groups is far greater than that of monochloros-triazine, under normal dyeing conditions, CI Reactive Red 195 and cellulose Among the reactive groups of fiber reaction, 80% is vinyl sulfone, and 20% is monochloro-s-triazine. The combination of dye and cotton fiber has stable acid resistance and relatively poor alkali resistance. But for C.I. Reactive Red 241, because vinyl sulfone is in the para-position, the reactivity is weak, the difference between vinyl sulfone and monochloro-s-triazine is small, and the combination of dye and cotton fiber has similar acid and alkali resistance. In general, the cost of dyes for para-esters is lower than that for meta-esters.
3. Quality Reactive red 3BS printing performance:
Quality Reactive red 3BS is used for printing. The best steaming time is 6 minutes. Because it is a double active base, the color is stable within 5-10 minutes and the change is not obvious. Because there are more water-soluble groups in the structure of Quality Reactive red 3BS, the floating color is easy to wash off, and the staining performance of the white background is also better.