Did you know that every black doesn't dye the same?

Did you know?

All About Black Dyes

We carry 4 shades of black Fiber Reactive dyes, each with different colors in their mixes that result in a different cast or shade. "Black" can run greenish, bluish, reddish, etc., depending on what it is made from. To complicate things further, when you use them for tie-dye, low immersion and ice dye techniques, blacks, like other mixes, tend to "split" or "bleed" into their component colors. Different dye colors have different size molecules; colors with the smallest tend to spread through the fabric faster than the colors with larger molecules. The proportions of the component colors and how quickly each one "strikes" when it comes into contact with the soda ash can affect what kind of bleed you get in these techniques. The 44 Better Black, 200 Raven & 300 New Black all work really well at room temperature (~ 70°F) with direct application methods like tie-dye, batik. They can also produce amazing results (splits!) when low immersion dyeing or when you're ice/snow dyeing and the temperatures are lower but the fabric is kept in contact with the dye for enough time to react to full potential (i.e. 'batching'). Our one 'hot water' Black (#275 Hot Black) performs best at ~150F (130°-180°F), and is better for immersion dyeing in a tub or vat where you can get the temperature up and maintain it. It can also be used for methods like tie-dye if you warm it up.

None of these gives a perfect black on silk but #275 comes the closest. To get a consistent rich neutral black on silk or wool, use an Acid Dye.

Now, which black should you use? Below, we try to explain some of the differences. But it is fun to try them all!

#44 Better Black

BetterBlack
One of our most popular "cold water" blacks. Tub dyes with a blue cast and edges are blue to blue green in tie-dye. Maroonish on protein fibers.
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#300 New Black

NewBlack
This one Tub dyes with a blue cast and edges are blue/pink in tie-dye and ice dye.
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#200 Raven Black

RavenBlack
Our newest and now most popular Black! - A cold water black that has a more balanced cast than 300 or 44, and gives the deepest black of all the "cold water" reactives in tub dyeing. In tie-dyeing the edges are blue to bluish purple, a deeper shade than 44, and slightly darker than 300. We think it is going to be a great new option for dyers doing all kinds of techniques. And while no cold water black can ever equal the depth of a hot water black in solid dyeing, this one is the next best, and much more economical than a hot water black. Not black on protein fibers.
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#275 Hot Black

HotBlack
Best for tub dyeing in hot (150° - 180°F) water. Gives a deep bluish black on cotton. With Soda Ash on silk it's a deep blackish brown; with vinegar on silk, came out black in our tests and a lighter shade of black on wool. It can be used for tie-dye but you need to mix with HOT tap water, use your urea, and then either batch it under black plastic in the sun in the summer, or under a heated blanket (protected by plastic, of course) in the colder temperatures. Our tie-dye results came out blue-black, when the dye was batched at a warm ambient room temp of 75°F or more! If you are looking for a different black, give it a try. The only Fiber Reactive black that works on silk! Also the BEST Fiber Reactive black for Discharging!
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#39 Black

We regret to say we are discontinuing this black, our original from many many many years ago, as it is our least popular black, our least black Black, and sales no longer support keeping it. We are happy to mix up 5 or more pounds for special orders, as always with discontinued colors.

Some tips and tricks to get the best out of your blacks:

  • You have to use a lot of dye:
    • In tub dyeing, use 7-8% weight of goods. Always paste up your dye, preferably with a Urea water mixture, to get it dissolved and to avoid "freckles" of undissolved dye, particularly red. (If you are still having freckles, filtering your dissolved dye through a very thin fabric like habotai silk can help.)
    • Use 8 teaspoons per cup of Urea water for tie-dye. It can help to mix this in a blender as it is hard to paste up that much dye in such a small amount of water. Here is where your Urea really pulls its weight, since it is a dissolving agent as well as a wetting agent. Shake your solution up before applying, as the heavier red often sinks to the bottom as it sits. In the blacks that have more red in them, the red is also the most likely color to sit on top of the folds and not migrate as much as the other colors.
  • For tub dyeing, use 1.5 to 2 times as much salt as you normally would - this forces more of the dye to the fabric.
  • Some folks love 50/50 combination of #44 and #300 for tie dye and batik. We got a mean black tie-dye with our NEW Raven Black that folks may like even better! 
  • Keep the blacks as dark as possible and reduce washout by taking the extra step of soaking the finished dyed garment in Dharma Dye Fixative or Retayne. (When the dyebath is done, drain it but don't rinse the garments/fabric. Fill tub back up with HOT water and add the fixative, 1 oz per lb of fabric, 8 oz for a full washing machine load. Soak, agitating occasionally, for 30 minutes, then rinse and wash in HOT water and our professional dyer's detergent as usual. Sometimes it is necessary to wash black items twice. But without Retayne or Dharma Dye fixative, you might have to rinse and wash more. The nature of the beast. This helps with any darker shade you want to dye, by the way.
  • For tub dyeing- STIR STIR STIR!!! - The more your item is agitated (a full hour after the last soda ash has been added for darker shades) the more dye will penetrate the fabric for a deeper and more even color.

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