Jacquard Acid Dye for Wool, Silk and Other Protein Fibers, 1/2 Ounce Jar, Concentrated Powder, Emerald 629

I don't have experience in dyeing, but I followed the instructions as exactly as I could in dyeing a 40-year-old cream-colored aran with a few small stains. I had a large canning pot (an even larger one would've been better but I'm not sure they're made any larger), and I was careful about gradual heating and cooling. It was in adding the vinegar that the true color popped out -- a rich brown, just what I wanted. However, I think that this sweater had "background" discoloration that I didn't see, or perhaps something else going on, as the dye took unevenly, and there are darker brown and redder sections in places. The sweater was large, so maybe the pot was too small (sweater weighed 1.15 lbs dry) and didn't allow for enough stirring, but I sure made an attempt at it (even while being careful not to over-agitate). As I washed it afterward in Synthrapol to remove extra dye, I read on the label that one could add it to the dyepot to encourage even uptake -- wish I'd read that first. I see that another reviewer has mentioned soda ash or urea, and one of those might also have helped. So I don't know whether the issue was not enough stirring or background discoloration in the wool that led to uneven take-up, but the end product isn't great. I can and will wear it at home but probably not to the office. These issues aren't the fault of the product but rather of my inexperience and/or the item I was dyeing. The product was fine, the color a really nice true-brown. So: do as much prep as you can. This activity took several hours (not at all once), so allow for that as well. I'm uploading a picture but it doesn't do the brown justice -- a brown like a dried oak leaf, or tobacco and there are also shadows across it.

Amazing product. Wonderful rich color! I dyed a cashmere sweater according to directions and it worked beautifully.

This worked wonderfully on my father-in-law's old wool slacks. The color was rich. I'm very happy with this product.

Worked like a charm! Dyed a blah sweater teal- gorgeous!

This product did a great job on a merino sweater that I had spilled hot tea on and couldn’t get the stain out of. The online video directions were perfect. I had never dyed anything before this and it came out great.

Works like it should, when I eventually got the right product

I could have spared myself 2 hours of effort and just used a lighter to burn up $34 in cash. This product DOESN’T work. I bought the 8 oz. package; the label (which isn’t fully picture on the listing) says the contents should be enough to dye 2 lbs of fabric. For reference, the wool poncho sweater I tried to dye weighed only 1.5 lbs. I followed the directions exactly and was excited to see the sweater immediately take on the rich blue color. After standing and stirring it for 40 minutes - and then leaving it in the dye an extra 4 hours just to make sure it would take - I went to rinse it and ALL the color washed right off. (Bear in mind this was a cream sweater. After the rinse, it is still currently cream. Zero color difference.) Where the dye *did* stain was my hands and fingernails once I removed the sweater from the pot. I used some heavy nail polish remover and my hands are still blue. I hated this product; from the reviews it looks like sometimes it works? For me, I rinsed $34 down the drain.

If you want an electric pink on steroids--this is it! I love it. It's the color of a pink highlighter. I don't know if it actually fluoresces, but it's bright. It's exactly the shade I wanted to dye wool with. However. I dyed some raw farm wool last night with this. The pH was 4 and the dye pot was held at just under a simmer for over an hour and the dye did not exhaust. I let it cool completely in the pot overnight. And today, when rinsing, there was a lot of bleeding. Now, the wool is not oversaturated because I used this dye very dilute. I wasn't going for a deep dark pink--I was going for a very light color. So I'm worried about fading for two reasons: 1) it's fluorescent which means it's fugitive (fades quickly with time, exposure to sunlight etc) and 2) The dye bath did not exhaust and the dye is running during rinsing which means it may run every time I wash this wool. So. This is quite the dilemna. I'm contemplating overdying it with a different brand in a ho-hum magenta just so I can be sure that it will actually stay pink. I'm not sure I want to mess with this anymore because dying wool is such a big production. BUT. Despite manufacturers stating that acid dyes need a pH of 4.5 to effectively strike, some dyes seem to need a much lower pH to fully take up. pH is on a logarithmic scale--so 4 should have done the trick, but I'll try going a bit lower to see what happens with this. One more chance Jacquard. I'll report back later if I come to any distinct conclusions about this. Every dye is different. I wish the manufacturers would give us all the info on each individual dyes quirks so we can make informed decisions instead of having to find out on our own after paying for the dye. Harumph.

Sieht nach Kürbis aus. Ein klein bisschen matter als erwartet. Das Material ist naturfarbener Kaschmir. Verwendet habe ich fast die ganze Packung.

I bought this to dye nylon cord as it said it's for nylon. Didn't work. Might be better on cloths.

Great depth of colour. Mine came out more of an Antique gold ,than the colour shown on the picture of the review above. Mixed with some chestnut acid dye ,it looked stunning.I'm very happy and would therefore recommend this colourway.Delivery was quick. 😊

Dyed a wool jacket very well.

this product has to be used when washing fabric at 90°C! how can you use it on wool/cotton/silk...clothes? their size will decrease. I have bought another brand that can be used ato 40°C