For a long time all we knew for sure about the dyes in Dylon dyes was that they contain a fiber reactive dye "like" Procion MX dye, as the company described it. Other fiber reactive dyes such as Drimarene K and Cibacron F dyes are a whole lot "like" Procion MX dyes, so we were not sure which type of fiber reactive dye the Dylon Cold Dyes contained. Other Dylon Dyes contain mostly Drimarene K type dyes, so it seemed a good bet their Cold Water dyes did, too.
Now they have an informative page entitled The Chemical Structure & Properties of Dyeing Factsheet, which says that Dylon Cold Water dyes really do contain dichlorotriazine dyes, the type in Procion MX type dyes, unlike Dylon Machine and Dylon Hand dyes, which contain "pyrimidine or vinylsulphone" dyes, i.e., Drimarene K or Remazol type dyes. (Drimarene K dyes are chlorodifluoropyrimidines, as listed on my About Fiber Reactive Dyes page.)
However, MSDS information available online indicates that, for example, Dylon Cold Water Dye A52 Black contains reactive orange 64 and reactive orange 86, presumably in addition to other dyes; while reactive orange 86 is the same as Procion orange MX-3RA, reactive orange 64 is, I think, the same as Levafix Orange E-3GA. They're apparrently mixing dye types, which is interesting. I wonder if different temperatures will yield slightly different colors, for these mixtures.
Dylon Washing Machine Dyes contain mostly Drimarene K dyes, as Olli Niemitalo reported from reading the ingredients list on the back of some dye packages, in Finland. (We cannot buy Dylon Washing Machine dye here in the US, because it's formulated for front-loading washing machines; in spite of the growing popularity of front-loading washing machines, Dylon told me that they had no plans to introduce the dye here.)
Dylon Permanent dyes, which are sold in the US, do contain mostly Drimarene K dyes, plus at least one vinyl sulfone (Remazol) dye. I think they may be equivalent to Dylon Hand Dye in Europe. The ingredient lists show the following (there may perhaps also be unlisted dyes):
| Dylon name | generic name | also known as... |
|---|---|---|
| 29 deep pink | reactive red 358 | Drimarene Red R-7B See also safety info |
| 34 olive green | reactive blue 225 | Levafix Navy Blue EBNA Drimarene Navy RKBN |
| reactive yellow 125 | Levafix Gold Yellow ERA Drimarene Gold Yellow K2R |
|
| 51 burgundy | reactive black 5 | |
| orange 64 | Levafix Orange E3GA Drimarene BRILL Orange K3R |
|
| red MDO 358 | ||
| 48 poppy red | reactive red MDO358 | see above |
| reactive orange 64 | ||
| 09 dark green | reactive blue 225 | see above |
| reactive yellow 125 | see above | |
| 79 vivid turquoise | reactive blue 116 |
Drimarene Turquoise K-2B CDG Levafix Turquoise BLUE EBA |
| 26 royal blue | reactive blue MDO 358 | see above |
| 08 navy | reactive black 5 | Remazol Black B |
| reactive blue 225 | see above | |
| red MDO 358 | see above | |
| TSP | trisodium phosphate | |
| 30 deep violet | reactive red MDO 358 | (surely it must also contain a blue?) |
| 12 Black | Reactive Black 5 | |
| TSP | trisodium phosphate |
MSDS info indicates as follows:
| 2 Orange | Reactive Orange 64 | |
| 3 Scarlet | Reactive Red 123 | |
| 8 Black | Reactive Orange 64 | |
| Reactive Blue 225 | ||
There is a real surprise, in the description of Dylon Multi-Purpose Dye, which is like Rit® dye, an all-purpose mixture:
This is a mixture of three types of dye; Direct, Acid and Disperse. Direct dyes dye cellulosic fibres, Acid dyes dye wool, silk and nylon and Disperse dyes dye some synthetic polymers e.g. plastic buttons. None of these dyes reacts with the fibre, their substantivity relies on weak ionic or molecular attractions. They have, therefore, relatively poor washfastness.
Since Disperse Dyes require higher than boiling temperatures to transfer well to polyester, unless you also add a toxic carrier chemical, the Disperse dye in Dylon Multi-Purpose Dye is apparently not there to dye polyester. Instead, it is apparently there to dye plastic buttons and the like. I'm not even sure that it's true. Acid dyes will work well on nylon buttons, after all, and we've never heard before of an all-purpose dye containing disperse dye.


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