Natural dyeing: Cochineal on cotton

I did some natural dyeing on cotton with cochineal. For those of you who don’t know cochineal is a dried insect from South America . It’s been used for getting purple colour around the world for centuries, I believe first by the Mayans and the Aztecs. It was very popular before synthetic dyes were invented. I like to use the whole ones (not the powder) because it’s easier to clean. I had premordanted the fabric with taro root powder and alum, you can read about it here.

I have done bundle dyeing before with cochineal on cotton, but never full cochineal dye. I have dyed wool yarn and I have written a blog post about it, you can read it here. Last time the colour was a lot more pink, I think I might have used cream of tartar which I have read might affect the colour. I did one mistake with trying to dye too much of fabric at the same time with a “small pot” (10 litres). The fabric should always have enough space to move around so the result will be even. That’s why I like using shibori techniques, where it doesn’t matter if the result is even or not. Wool yarn is much easier to dye evenly in my opinion. Leena at Riihivilla (where I buy my cochineal) has written an amazingly detailed post about cochineal both in Finnish and in English that I recommend for more information.

This shibori wrapped around a bottle turned out nice! I have used the same technique (arashi?) with onion skin dye here, where I talk a little bit more about it. This time it worked much better with much lighter fabric.

Natural dyeing: red onion skins on cotton

Dyeing with red onion skins blows my mind every time. How do these red skins turn in to yellow/green colours1? I have dyed wool yarn before with red onion skins and got an amazing strong colour. This time the colour was a bit lighter, but I think that really depends on the material. The lace I dyed turned out much stronger and this old sheet fabric that I have always gives lighter colours.

I mordanted my fabrics before hand with taro root powder and alum. You can read about it here. The dyeing process doesn’t differ from dyeing wool yarn or from dyeing with normal onion skins. I have written a good blog post about that here.

Natural Dyeing: Milk and Tea Dye

I came across this post about painting with milk and dyeing with tea by Rebecca Desnos. She has really good instructions on how to do that so I’m not going into that with this post. But this was fun and simple! As a future craft teacher I think this would be a nice technique to do with kids. And with the Covid 19 forcing kids to do home schooling (hopefully we are done with that in Finland), I think its an easy technique to do at home. You don’t need anything expensive just, cotton fabric, any milk (vegetable or animal), tea, and maybe a brush.

I used cows milk, but any milk will do. I found challenging that the milk would start spreading easily. Broad general patterns are easier to do.

I used some horrible old black tea I found in the cupboard. I tried green tea as well and it worked just as well, just a bit lighter colour.

I also dyed some of the fabric I had mordanted with taro root powder.

I really like this technique. It was fun and different and creative. It also got me interested in mordanting with milk. I have Rececca Desnos’s book Botanical Colour in your Fingertips coming on the post.

Natural Dyeing: Pine cones

I did some pine cone dyeing this week. There are over 100 different species of pines in the world. In Finland we have just one naturally growing one (Pinus sylvestris). This was my first time trying out dyeing with any kind of cones, but reading about it, I feel that most cones act the same. They give brownish/pinkish/reddish tones.

I found a lot of information about dyeing with spruce cones, but not so much about dyeing with pine cones. I figured they cant be that different. Most instructions say that the cones from last year that have been laying under the snow the whole winter give the best colour. Well thanks to global warming last winter was the first one in my lifetime that we did not have snow at all in Helsinki. But anyways I thought how on earth I will know in August which ones are old and which ones are new?

I let the cones soak in water for one day and then started cutting them to pieces. I think this was a good idea as they got a lot softer. I also noticed that some of them where a lot lighter and others a lot heavier and sank at the bottom. Others where mushy and brown and others hard and red in the middle.

I found an interesting PDF of an old Finnish dyeing book from 1919. In it Alina Hellen says about spruce cones that: “You will get grayish red from them. The cones are collected during spring and summer. Preferably they should be the ones that have fallen out of the trees last year and have been laying over winter in wet places and because of that they have stayed hard and smooth. They should be dark brown/reddish and juicy from the inside.” She was talking about the spruce cones but I used this as my guide line and only used the ones that had red in the middle. I think it makes sense that that’s where the dye is.

Alina Hellen, 1919, Kotivärjäyskirja; Neuvoja kotivärjäykseen kasviaineilla. Suomen käsityön ystävät. KVS:n Käsiteollisuuskirjasto N:o 13

Cutting the cones into pieces was a lot of hard work and I should have had proper tools for this (like garden scissors). My thumps hurt a lot the next two days. This was definitely one of the most labor intense dyeing things I have done.

I boiled the cones for almost four hours. Normally I only do two hours, but hard stuff like cones need a little more time. The smell is so good by the way! I wish someone would make a boiling wood perfume. Looking back I probably should have had a bit lower temperature. I lost quite a bit of dye. And I could have left the cones to soak in the dye bath until the dye was cold. But I wanted to start the dyeing process.

I invested and finally bought some muslin cloth. It really is a good idea to use it to do the sieving. All this small mush that goes through a normal sieve could make the dye result uneven. I also cleaned the pot at this point.

The dye itself was a dark brown with a reddish tint.

I dyed my cotton fabric for one hour and let it cool in the pot. The next day I used the same dye for a second time for another patch.

These are colors that I got. The top one was crumbled. The darkest bottom one was a different fabric.

The end results where beige light brown colours. The bottom fabric was a different fabrics. The rest where an old cotton sheet. I think the bottom one is mostly cotton, but I think its mixed with some kind of synthetic fiber. I was surprised how well it took the colour.

The interesting thing was that there was no difference between the mordanted and unmordanted fabrics. I’m guessing that the cones have natures own tannin and don’t really need mordanting.

All and all beautiful colours, but a lot of work. I do think there might be an easier way of getting lovely browns…. In 2014 I dyed with juniper bark and I think that was a lot easier. You can read about it here. I have also dyed with walnut hulls, although that was a long one month soaking. You can read about it here.

Natural dyeing: surprise webcaps (cortinarius semisanguineus)

I did some mushroom dyeing with surprise webcap caps this week. I was very surprised (no bun intended) by them. I was expecting darker more orange toned autumn colours. According to Leena at the Riihivilla younger mushrooms have more orange colours and older mushrooms have more red colours, but that the colours can differ a lot depending on where they have grown etc. Also a funny thing is that the caps have red colour and the stems yellow colour so you can have two different colours from them! This time I only used the caps.

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Six years ago I actually collected the mushrooms myself and got lovely orange colour with wool yarn. You can read that post here.  Keep in mind that these mushrooms are poisonous, not edible! This time I used some mushrooms I bought from Riihivilla online shop a year ago. Maybe the age has something to do with these pinks? Or the tara powder I used to mordant my cotton? I really don’t know.

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I alway, always have different pots and utensils for dyeing and cooking, but especially for these mushrooms! I added the mushrooms at the bottom of the pot and added a little pit of water, not full. I let the mushrooms simmer for an hour (about 80-90 degrees celsius). Then I sifted the mushrooms away and added more water to the dye. 

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I put the mushrooms inside old pantyhose, so I could put them in the dye bath with the fabric. I mordanted my cotton sheet with tara powder and alum. The post I wrote about it is here.  

I simmered the fabric in the dye bath for about two hours in 80-90 degrees celsius (I don’t measure temperatures so much these day). I let the fabric cool in the pot and then rinsed the fabric. I read afterwards that its good to add some vinegar to the rinsing water when dyeing with these mushrooms so the colour will last better.

I used some iron modifier to some of the fabrics and they turned violet! The beige one is from when I dyed a new fabric in the same dye bath, it came out light pink and when I added it in iron water it turned beige. Such different results!

I “made” the iron water by putting some rusty screws in a glass jar with water and vinegar. I have also done some rust dyeing experiments so I used the rinsing water from them.

I also did some shibori spiral experiments.

The swirl worked fine, but I really need to use a thinner fabric when making this kind of folded shibori. I might just keep adding some other dye experiment on it. All and all dyeing with surprise webcaps was very interesting and not at all what I expected. But that’s the nature of natural dyes. You never know what you get!

Natural Dyeing: Onion skins + shibori

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I have been saving up onion skins the whole spring and summer and finally I had enough to do an onion skin dye. Onion skins were one of the very first things I tried natural dyeing with. They are so easy and you get a very strong, lasting and vibrant colours. They don’t necessarily need an mordant and at least for me they work every time! And they are easy material to collect, very beginner friendly. I’m obsessed with mordanting so I mordanted my cotton with tara powder and alum, there is a post about it here. There is also an old post I wrote about dyeing wool yarn with onion skins here.

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The new thing I’m interested in is shibori dyeing. I really don’t know much about it so I’m still learning. I think for some of the things I did use a bit too thick fabric. I bought this old sheet from the flea market and that’s what I have been using for all of my dyeing experiments. I used a you tube tutorial from Blueprint to do these shibori folds. I had to improvise a bit though.

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Onion dyeing is very simple. You can pre soak the onion skins in cold water for anything from two hours to a day (or as long as you want). This time I skipped that step and just gently boiled the onion skins in my 10 litre pot for two hours and then filtered the skins away. I pre soaked the things I wanted to dye before adding them to the pot. Making sure they have enough room to move around in the pot.

I like to keep the temperature around 80-90 degrees celsius, it does not need to boil terribly. With wool yarns especially its good to keep an eye on the temperature as wool does not like to be boiled. Cotton of course is not so sensitive. After two hours I turn off the heath and let things cool down before I take them away from the dye. Then I rinse them with water until there is no more excess dye in the rinsing water.

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The first photo below is my second try with the bottle twisting shibori (I believe it’s called arashi-shibori?). I tried to do just one fold because with my first try (second photo) there were way too many folds and the dye just didn’t go through. I’m learning that with this kind of shibori thinner fabrics work better. The third one is the folded one where I used some chopsticks and the last one is the hand sewed one.

sipulishiborit

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The good thing about onion skin dye is that you can easily use the same dye bath multiple times. I usually always try to do at least two dyes with any natural dye. This time I did three and I probably could have done more.

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I had to fill me bottle with water so it would not float in the dye bath. This bottle was also the only thing small enough to fit in to my dye bath. I think I got the shibori bug now and I need to try some more.

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Natural Dyeing: Black Beans, Part 3

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Six years ago I did two post on how to dye wool yarn with black beans. As I have moved into dyeing cotton fabric I thought I would write a little updated post. You can read here the part 1 and part 2. I basically I used exactly the same technique, the biggest difference was that because I was dyeing a cellulose fiber I mordanted with both tara powder and alum. There is a post I wrote about mordanting with tara powder here and with alum here.

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I soaked a 450g bag of black beans in a 2 litre bucket of water for 12 hours. Then I strained the dye into a glass jar (I don’t think the glass jar is important though). I soaked the same beans in a new water for another 12 hours and strained the dye again to the glass jar.

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THE FIRST DYE BATH

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I did a basic triangle shibori fold and let it soak in the jar for 24 hours. Its good to put a plate or something underneath the jar if is not air thigh and its really full, mine did spill liquid out during the process.

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The results do look darker here. After this I gave them a good rinse with water to get rid of all the excess dye.  And then I let them dry. It’s good to remember that natural dyes do tend to fade a bit in the sunlight, and in my experience black bean dye is one of those. I  always dry my materials inside to protected them from the sun.

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I think the shibori worked out quite nicely!

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Same dye bath, second dye

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I’m sure this shibori has a name. Or maybe its tie dye? Leave a comment if you know. I did the same as last time. Let the bundle soak in the dye bath for 24 hours.

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All and all I did three dyes in the same dye bath. Each time the results got a bit lighter. I have some black bean dyes from six years ago and the years have faded the colours a bit. Some natural dyes are like that, in my experience mainly vegetable dyes . That’s why I prefer a darker colour, so that the results last longer. I also did a little test with unmordanted  fabric and it did work, not as well as mordanted fabric. My hypothesis is that the dye lasts time better when the fabric is  mordanted, but I don’t have the evidence to support that yet.

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There are many factors that play a role in what kind of colour you will get and I have not cracked all the secrets yet, but the main ones are:

BEANS: I have gotten very different results from different brands of beans grown in different parts of the world in different soils.

WATER: The pH-levels of your water  effect a lot your dye results. If you want you can measure it with pH-indicator strips. Number 7 is the neutral pH level, pH less than 7 are acidic and solutions with a pH greater than 7 are basic or alkaline. You can change the pH to more acidic with vinegar, I use alum as an mordant which I believe is acidic as well so it all ready effects my results. Or if you wanna go more alkaline you could try baking soda. Or try using rainwater or spring water to get different results. It really is about experimenting.

FABRIC: This is an obvious one. The base colour of you fabric or yarn means a lot as well. In the past I have gotten really lovely dark blues with a yarn that was grey to begin with. Also the quality of the material, thin or thick etc. effects.

And in the end with natural dyes you just never know what you get.

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Eco printing

I started experimenting with eco printing around three years ago. I don’t really do neat look-a-like prints of leaves. I think they are so pretty and I would like to do that at some point. At the moment I work with limited Finnish dyeing plants and a very short nordic summer so I make do what I have. More research is needed! I also kind of like the more abstract way my prints look, they feel more like me. This post is a kind of summary of some things I tried over the years. I write this mostly for myself as its handy to have a diary to come back to when I have forgotten how I have done something. But if somebody else finds this useful how nice would that be!

 

TECHNIQUE

  1. Mordant the fabric. (Here is my previous post on mordanting cotton and other cellulose fibers.)
  2. Lay fabric on an even surface.
  3. Fill a half of the fabric with plants etc.
  4. Fold the fabric in half
  5. Roll the fabric tightly around a wooden stick
  6. Twist strong yarn around the stick
  7. Steam the rolls in a pot with little bit of water on the bottom around two hours (or use double layer steam pot). I have used rocks on the bottom so the rolls don´t lie in the water. I also make a diy steamer with putting some foil on top of the lid.
  8. Open the rolls and remove the plants
  9. If needed wash the fabric, dry and iron.

MATERIALS

You can use for example these things for dyeing (links to my previous posts):

Rusty items (nails, screws, pottle caps): Black or violet colour (The rust has natures own tannin that helps the colour to stick to the fabric.)

Rusty screws, black bean (that did not work in this) andmadder powder.

Onion skins: Strong yellow or orange

Onion skins and birch leaves

Red onion skins: brown or green.

Plants from the nature like birch leaves and lupin: yellow colours (I have listed a lot of plants from the Finnish nature that are good for dyeing on this blog).

Avokado skins (it did nothing), dandelion, birch leave, onion skins.

Turmeric:   bright yellow.

Surprise webcap: Orange/red colours. This mushroom is poisonous! Generally always remember to have separate utensils and pots for dyeing and cooking!

Surprice webcap (cortanarius semisanguineus) and onion skins

Madder Powder: red/pink or orange.

Pansy: violet or blue colour (The colour doesn’t last very long).

Above you can see my first ever experiments with eco printing, where I experimented with pansies and the colour did fade away quite quickly. Underneath birch leaves. Yellows are onion skins. I realized that it was better use quite a lot of plants to get the maximum colour.

Cochineal: dark aniline red.

I got to teach eco printing at a children’s summer cap in 2017 and they where so creative with it!

They really got some strong colour from the chochineal and the rusty screws!

Then we used the fabrics to sew pillows.

(I buy all the things I don’t collect myself from the Finnish Riihivilla online shop. Her blog also has so much good knowledge about natural dyeing both Finnish and in English)

HOW LONG DO ECO PRINTS LAST?

Some natural dyes like berries and red cabbage are fugitive they fade over time, like the pansies I tried. Also natural dyes fade a bit in sunlight, that’s why you should never dry them in sunlight. Mordanting is important factor in fibres keeping the colours.

Of course time will have its effects as well. This is a bag I dyed back in 2017 when I was experimenting eco printing for this children’s summer cap and then there is the same bag 3 years later in 2020. You can see that the bag has faded a bit.

Eco printed bag made 2017.

Same bag 2020.

Natural dyeing and mordanting cotton fabric + avocado dye

It has been a while since I have written here! I have been using this blog a lot though as an notebook I go back to when I need to fresh my memory on some natural dyeing I have done. Just because I have not written here doesn’t mean I have not done any natural dyeing life just has been really busy. I have been active on my Instagram though @_theeasyblues_. Lately I have done more cellulose fabric dyeing and eco printing and I’m experimenting with some new things at the moment. I though it would be good to write them down here, so I can come back to them when I need to, and if someone else finds them useful even better.

I think mordanting fabrics and yarn before dyeing is important, so that the fiber will take the dye in better and that the colours will be brighter and last longer. Some colours are okay without mordanting but some really need that extra boost. I have done a post about how I mordant wool yarn with alum before, I will put a link here. I do the almost the same mordanting with alum to cotton, but because cotton is an cellulose fiber it will need some tannin to work better. There are many ways of mordanting cellulose fiber, what I use is tara powder which made from the seeds of a tara plant native to Peru and it has lots of tannin in it. I think some people use soymilk and iron also has natural tannin in it as well.

The following instructions to using tara powder are from Finnish Riihivilla online shop website where I buy my tara powder from.

200g of tara powder is enough to mordant 1kg of cellulose fiber fabric (cotton, hemp, linen) together with alum. I first mordant with tara powder and then with alum. Tara powder will give a small hint of beige to the fabric, but I have never found that to be a problem.

I dissolve the tara powder into 60°C water. I pre soak the fabric in water before adding them into the pot. Make sure there is enough water for the fabric to move around. I let the temperature rise to 90°C and then keep it there for an hour and let the fabric lie in the water until its cooled down, usually until the next day. I rinse the fabric carefully. After this I mordant with alum. Keep in mind that you need douple the amount of alum to cellulose fiber than wool (20g/100g of material). Its good to remember to weight the fabric dry before you soak it in water, I have done that mistake couple of times in the past. You can use the tara powder liquid for the second time and this time add only half of the amount of powder you used before.

And then on to dyeing! Dyeing cotton really doesn’t differ from dyeing wool much so all of the posts that I have done about dyeing wool yarn with different things will work fine. Lately I have been loving dyeing with avocado skins. I have used this very usefull post from Rebecca Desnos.  This post has really good tips on how to get really good pinks from avocado skins. She uses soy mordanting. I really need to read her book to learn more about that!


I have been very specific about cleaning the skins from the flesh really good to get bright colours. I also made the mistake of storing my avocado skins in a glass jar (they go moldy) so now I store them in a cardboard box. I also checked the ph levels in our tap water and made it more neutral with some baking soda. I have gotten nice pinks, but like always with natural dyeing you can never know exactly what you will get. Above I have two different pinks from two different times. I’m also writing about eco printing at the moment. Lets see if I can keep up this documenting thing!

Natural Dyeing: Colours from the Supermarket

This is the second part of my roundup of all the different natural dyes I have been experimenting on during the past year. The first part was about collecting yourself from the nature, but not everybody has the luxury of getting to collect from nature themself’s.  There are a lot of choices in the normal supermarkets as well. I love dyeing outside on the open fire when I´m at our summer cottage, but most of the time I live in small flat in the city. All you really need is a large pot that is used only for natural dyeing, strainer, some mordants like alum, kitchen weigh, maybe a thermometer and a visit to a supermarket.
from the kitchen

Onion skins are probably the best know source of colour and I think they are pretty amazing. There is so much pigment in the skins and the colours are really strong and varied. I tried both regular onion skins and red onion skins.  Black beans where an interesting experiment. There where some hits and misses but the blue colours where beautiful, you can read about part one and two here and here. Turmeric was a very spontaneous experiment and the colour came out strong. Beetroot and red gabbage where interesting but the colours are sadly fugitive. What should I try next?

bought from the shops

I also did some online shopping and bought walnut shellsmadder powder and cochineal. The colours are pretty, but for some reason the dyeing process is not a satisfying for me if I just order things online. It’s a lot more fun to make the dye yourself. I quess I love the hunt.