Isabella Whitworth

probably more than natural and synthetic dyes, wax, resists, and history

Category Archives: Shibori


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Three historic purples: Tyrian Purple, orchil, and Perkin’s mauveine

dyetrio

Top: blue-purple samples: mauveine-dyed using a shibori technique; lower pair of silks: orchil-dyed in redder shades; threads on orchil-dyed silks: dyed with Tyrian Purple

Here is an image showing an extraordinary trio of historic, and historical, purple dyes. Two are the natural dyes Tyrian Purple and orchil, whose histories are so ancient their origins are unknown. The other dye is a recreated mauveine, the first synthetic dye to be commercially developed, after synthesis in 1856.

All three dyes play a part in an archive I have been researching, which relates to a dye manufacturer based in Leeds. The company began when a young chemist called James Bedford started making orchil and cudbear, later forming a company named Wood & Bedford in around 1850. Through various changes of names and expansions, the company became a major international dye and chemical manufacturer, finally folding in 2004 under the name Yorkshire Chemicals. You can read more about the history by following links below.

Orchil was the natural, lichen sourced dyestuff on which the company’s fortunes were founded by James Bedford. But by the late nineteenth century, William Henry Perkin had discovered and patented his synthetic dye mauveine, signalling the gradual demise of natural dyes in commercial use and the beginning of chemical manufacturing. There was a family connection between the Bedford family and the Perkins’: WH Perkin’s son Arthur G. Perkin married a Bedford daughter. The Leeds company managed to weather the transition from natural to synthetic products and its archives are a fascinating record of how they achieved their success.

As to the Tyrian Purple, perhaps the most unexpected items from the archive are the genuine shellfish-dyed thread samples found in a small envelope. You can see one of the two samples in the image above. Again, please read their story by following links below.

Mauveine dyeings

I was contacted earlier this year by Dr John Plater, a Senior Lecturer in Chemistry at the University of Aberdeen. John has made a study of mauveine and has come to several interesting conclusions about Perkin’s dye. It seems that not all mauveines were / are the same. To read about John’s research, please follow the links below. John had read about my studies in orchil and was curious to know something of the versatility of mauveine in working practice. I sent him shibori-tied silks so that he could experiment with dyeing them, suggesting he try an immersion method on one set of samples, and separately apply dyes with an eyedropper. I find the eyedropper method very successful with synthetic dyes as it gives great control of the dye, and is very economical. You can judge which you think most effective from the page below. Immersion dyed are on the left.

mauveine

The archive’s new home

Later this week I will be presenting a paper at the DHA (Dyes in History and Archaeology) Conference at the Royal School of Needlework, Hampton Court. It will describe the entirety of the Leeds archive, part of which I have been studying. It is now available for public study through the West Yorkshire Joint Services (WYJS) facility at Morley, near Leeds. I will write a separate blog about this after the Conference.

Links

Story of the Leeds Archive on this blog 

Tyrian Treasure Part One

Tyrian Treasure Part Two

Dyes, history, and a chilly trip to Yorkshire

Some articles about the work of John Plater:

Detective work uncovers Perkin’s deep understanding of first synthetic dye

Meet the Researcher: free online article from Au Science magazine, (p 21)

Purple’s Reign

‘Accidental chemist’ who brought colour to Victorian society was ‘far ahead of his time’

 

 

 

 

 


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Fit – for some kind of purpose

There can’t be many households in agricultural areas which don’t have some baler twine in their house.  It’s used by farmers principally for the binding of hay or straw bales. Wikipedia states: Baling twine or baler twine is a small diameter sisal or synthetic twine used to bind a quantity of fibrous material (notably hay or straw) into a more compact and easily stacked form. Tensile strengths of single-ply baling twine range from 95 psi (0.66 MPa) to 325 psi (2.24 MPa).

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Synthetic baler twine: dropped by roadside ready-wound into a length to be used for an as yet unknown task

Down here you can find useful discarded lengths of it in the hedgerows, on the moors and in the fields. I’ve seen the multitude of uses to which it is put: holding a fence together; as a temporary gate-hinge; keeping a car-boot lid closed; as an improvised dog-lead; in birds’ nests and more crucially, holding up a farmer’s trousers. People collect it where it drops, saving it for a multitude of future unknown tasks. There is a kind of simple human optimism in this.

Here in Devon, local farmers have been completing the harvest, which includes baling and the generous distribution of baler twine to keep errant boot-lids down and trousers up. Recently they have been cutting moor grassland to use for animal bedding. The grass is cut and allowed to dry before being baled into cylinders for storage and I recently noticed a group of these, bound up in what looked like black and white stripes of baler twine. Only they weren’t, and it wasn’t.

I had a look up close to discover the ‘twine’ was actually a wide plastic mesh. It contracts widthwise when wound onto the bales under tension. I was intrigued by its structure and complexity, wondered who sat and designed it, where it is made, and whether its structure was solely suited to this one baling process. I started to research it online – and found it’s called bale netwrap and is sold by suppliers of agricultural bindings, such as good old baler twine. Not so useful in the trouser department, I suspect, and might be hazardous for birds that become caught up in it.

Close-up of binding
The cylindrical bale
Bales on the moor
The mesh itself

I have been moderately unfit for purpose myself recently, hence my lack of posts. Now I’m better and I have just completed teaching my final course of the year at West Dean, only to return with a heavy cold. Unfortunately I can think of no way in which baler twine will alleviate the symptoms.

My March 27th – 30th  2015  course Rhythm and Pattern is nearly full so if you want a place, contact West Dean as soon as possible. I will be teaching a further course from 17th – 19th July 2015.

 


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Harvesting Japanese indigo

photo

Blue stains which developed after rubbing Japanese indigo leaves onto paper

I planted out my Japanese indigo (Persicaria tinctoria) several weeks ago, having grown it all from seed. This week I picked some leaves and rubbed them on the page of my sketchbook to see if any blue appeared. It did (ignore the buff coloured stain to the left of the image, which is nothing to do with it). From this I knew that I could make a vat from the crop.

I began by picking half a bucketful and testing it as a small vat. I achieved a very good blue, which was used to overdue some cochineal-dyed scarves I had shibori-tied ready and waiting. You can see the result in the gallery below.

On the second vat I used a whole bucketful of leaves, rammed down hard. I just pick the tips, like tea: not the whole stalk. I sometimes weigh the leaves before processing but the material was wet after rain and there didn’t seem much point. I don’t always strip the leaves from stalks either, so a known dry weight is somewhat academic because the stalks don’t, as far as I know, produce any colouring matter.

On the day I dyed the second bucket I live-tweeted the various stages with images and received a good response. I think more and more people are trying to grow, and dye with, their own indigo.

With colleague Christina Chisholm I co-authored a piece on growing and using Japanese indigo for the Journal for Weavers, Spinners and Dyers in 2011. It was a free download and you can still access it here so I don’t have to write it all out again. We included some information on growing the plant in two distinct climates (Devon and north east Scotland). Christina has much more experience with dyeing wool, so fibre dyers might find her comments useful. If I were to be able to edit the article I’d make a couple of additions / amendments: 

1. I have since found that I don’t always see a blue froth when I whisk up the strained dye bath. Instead, the sherry-coloured liquid darkens and looks greener – but the froth is often colourless. Why? No idea. These days I have stopped using soda crystals and use washing soda instead. Maybe that’s the reason. 

2. I have found that leaves are often ready whether or not they have the red/blue tinge shown in the Journal download document. What I have heard since (but don’t know if it’s true) is that you need to use the leaves before the plant produces flowers.  

3. I try to encourage flowers for seeds each year and there is some urgency about this as in the UK the plants die with the first big frost. I mark a few vigorous stalks early on by tying a conspicuous ribbon round each one. Then I can’t pick them by mistake. I let these stalks develop flowers as early as possible.

Leaf tips after gathering
Bain-marie used to heat leaves in water
Leaves are crushed in the liquid
Leaves are sieved and squeezed out
Passing liquid from bucket to bucket to oxygenate
Liquid after addition of washing soda and oxygenation
Leaves for composting
Cochineal-dyed scarves and indigo dye-god


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Summer schools…

No posting recently because I’ve had a month of intensive teaching followed by intensive feet-putting-up. I ran three courses at Ardington in Oxfordshire and then four days in Nether Stowey at the studio of Janet Phillips.

Several vats on the go
Cochineal and indigo
Cochineal and indigo

At Ardington School of Crafts I taught my synthetic dyes shibori day, plus two one-day (repeated) courses on natural dyes. The natural dye course is a taster to a fascinating subject with some practical work at the dyepots, but also intended as an eye-opener to textiles seen at a stately home, museum etc. It’s even relevant to looking at paintings: I often wonder what dyestuffs were used on garments represented (with pigments) in a historic portrait. We had to move fast, with all fibre and fabric pre-mordanted, and an indigo vat ready to go. Most students dyed a scarf using simple immersion methods. We used madder, weld, cochineal and two indigo vats (one weak, one strong).

At Nether Stowey, I taught a three-day-dye course to several of Janet’s graduates from her Masterclass.  On day one they learned some shibori folds using steam-fixed dyes; day two gave them a taster of wax resist, and day three was a full day with indigo. At the same time as I taught dyes, Janet was teaching ‘shibori on the loom’ to students from the London Guild. In this technique, removable weft threads are incorporated into the weaving. They are later used to draw up the cloth tight. According to how the shibori threads are woven, patterns emerge after the piece is dyed, then opened up.

Students used coloured and plain warps, on different pieces. Some of this shibori work was put into my indigo vat on day four; others used Janet’s fibre-reactive dyes which were applied by placing woven pieces into a short length of gutter (brilliant idea) and painting by hand.  I am used to folding, tying and clamping for indigo work and although I have seen loom shibori before, I haven’t watched the whole process from start to finish. A combination of enthusiastic and knowledgeable students,  Janet’s teaching and the imaginative arrangements made by Janet and Nigel made for a very enjoyable week. Did I mention glorious weather?

 

Loom shibori gathered up for dyeing
Undyed loom shibori being opened
Indigo-dyed loom shibori
Fibre-reactive dyes applied to loom shibori
Indigo-dyed loom shibori

Many thanks to students at Ardington and Nether Stowey for permission to use images of their work.

Teaching in 2015

Dates of next years’ courses are accumulating. I will be tutoring two courses at the Association of Guilds of Weavers, Spinners and Dyers Summer School in August 2015 at Moreton Morrell. Details of the entire event can be seen here and there are details on this page.

I am teaching a new one-day introductory course in wax-resist at Ardington School of Crafts in 2015 as well as days on shibori scarves, indigo dyeing.  The Vibrant World of Natural Dyes proved very popular this year and I will be teaching it again in 2015: I have one course at West Dean scheduled for March. If you want to sign in, do so soon because my October course has been full since April.


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Shibori: Caterpillar to Butterfly

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Work laid out during dyeing with individual twists held in position

A recent picture posted on Twitter gained me  more re-tweets, follows and favourites than I’ve ever had. I’d been excited to share a caterpillar-shaped tying-and-dyeing which emerged like a butterfly into unpicked daylight. I was using a new set of folds, twists and ties and had a feeling it was going to be successful. While working the piece (and others like it, as left) my studio dyeing area looked like an operating theatre, with clips and ties keeping twists weighted down, or held out of the way so that nothing bled together. Dyeing took me a long time, adding colours one-by-one with an eye-dropper. I then had to wait until it was completely dry before unpicking, which was like eyeing up an interesting-looking present under the Christmas Tree.

Unpicking was a forensic job where a seam-picker and total concentration was essential so I didn’t make an accidental hole in the fabric. I unpicked before steam-fixing, so I also had to keep the work bone dry.

 

Tied and dyed
Detail of ties
Forensic surgery
Caterpillar to Butterfly

 

After the work was unpicked, I had, with regret, to iron out the beautiful bumps and wrinkles. Work must go into the steamer rolled flat. Although steaming will help set wrinkles, it isn’t really an option for me. Strong wrinkles last only as long as the work remains dry and I plan to sell these pieces as wearable and washable scarves.

The silk was a georgette 8 (I tried using a 10, but the increased density left me with less interesting dye ‘migrations’). I use dental floss or tape for tying and the metal clips were from shopfitting suppliers Morplan. I think they are used for displaying pairs of socks…. but I use them for endless studio jobs. Morplan don’t still stock the ones I show at the top, above, but there is s similar design online. They are especially suited to work with dyes as the grips can be wiped clean.

Detail of ‘rosettes’
Multiple ‘rosettes’
Another colour way


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All in the Background

I’ve been working on a set of scarves in which the first layer of dye is more than usually vital. In layered wax-resist one works by blocking out, or outlining, existing dyed areas. This effectively ‘leaves them out’. One then adds more dye for the next layer of the design. This sequence of dye – wax – dye – wax can go on more or less indefinitely until there is no room left on the fabric, or the silk is saturated with dye and will take no more.

In this way the first layer of dye, if applied in a lively and varied way, can still work its magic when the silk is covered with several more layers. If wax outlines are used in a design, these, or the areas they define, will appear as interesting as the layer of dye they cover or isolate. This new design, which I’m calling Fish and Fowl, relies on lines, outlines and areas of lighter and dark tone.

Two frames with first-layer dye plus finished scarf
First layer wax on first layer dye
Work in progress: second layer dye
Detail, finished work

I was teaching the principle last week at West Dean on my Brilliant with Pattern course: it’s hard to explain to students verbally and far easier by means of examples, demonstration and encouraging them to ‘have a go’ on experimental sample silk pieces.

Student’s work, showing colour shift of under-dye from pink to yellow.
Student’s work showing build up of dye and wax

My October course at West Dean is already full, but if you would like to learn the wax and dye technique along with some basic shibori, it’s worth adding your name to the waiting list. A further course is sometimes arranged if there are several people waiting.

Otherwise, I will be teaching Brilliant with Pattern at West Dean again at the end of March 2015.

If you want to book, look out for the Winter short courses programme which will be available from the West Dean website.

 


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Brilliant with Pattern

Brilliant with Pattern is the title of a course I teach at West Dean College, and I’m off again tomorrow. The course always runs under this title, but I never tutor it the same way. It’s partly because I’d get bored teaching an identical course and so I take different ideas along, but also because the creativity of individual students infuses the group, making each outcome entirely different.

Preparation for these intense weekends is extensive, in terms of assembling boxes and general ‘stuff’, but also in the thinking about how I will approach them. This week I completed two days’ teaching at Ardington School of Crafts (see some images on Facebook here) and finished up with a visit to a friend in Oxford. She took me to see the recently completed courtyard of the Mathematical Institute.

There I saw the work of someone truly ‘brilliant with pattern’. Professor Sir Roger Penrose, mathematician and physicist, works at the Mathematical Institute and his brilliance shines on fields beyond my understanding. But his work on non-periodic tiling  (yes, I had to look it up too: try here for some assistance) is exhibited in the form of a pavement outside the entrance to the Mathematical Institute. It’s pattern: constructed, mathematical, non repeating, and compellingly beautiful. The steel, mirrored sections work especially well, reflecting sky, birds, or passers by.

Penrose tiling, Mathematical Institute, Oxford
Entrance to Mathematical Institute, Oxford
View of the Natural History Museum, Oxford
Resist-dyed egg, Pitt Rivers Museum. Galicia (Poland /Ukraine)

 

On the same day I was able to spend a short time in the Pitt Rivers Museum, perhaps my favourite museum in the world. The newly-cleaned and restored glass roof of the Natural History Museum lit a path to the Pitt Rivers, which has no external public entrance. I know I will always discover something new in the Pitt Rivers: going there is like Christmas. This time it was a collection of resist-dyed eggs, the kind I wrote about in my previous post. The Pitt Rivers collection of these eggs was made at the turn of the 20th century in Galicia – not Spanish Galicia, but the one that is now part of  Poland and Ukraine.


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The Journal and a few bossy leaves

I’ve recently been up to London to the first Journal meeting of 2014. Whatever time of the year, this long day trip involves a very early start to drive to the station and travel up to London. We start at 11 am and the whole day, even lunch, forms a meeting to discuss Journal matters and plan forthcoming issues. On the chime of 4 pm the meeting ends and the room empties so swiftly you’d think we were all going to turn into pumpkins.  Members disappear to catch their trains – and occasionally, their planes. There is a great intensity to Journal meeting days, quite a few biscuits are eaten and sometimes it’s a bit frustrating. One has the day-long company of interesting textile-y people with whom one exchanges no more than a sentence or two of nothing-to-do-with-Journal conversation. But that’s the way it is. We are all volunteers giving time for a registered charity / organisation and we keep our expenses to a minimum: most of us are able to complete our round-trip to London within the day. If  you don’t know the Journal, have a look at the website.

Australian Journey: Leaves at Katherine

Australian Journey: Leaves at Katherine

Back at home I have been working on a new piece of wax-resist work which started off with one idea in mind but was intruded on, in a most impolite and insistent way, by the shapes of eucalyptus leaves. The direction of the work (and my hand) changed totally. It’s weird when this happens and is, I assume, a luxury not open to certain types of craft work such as weaving, which require more advance planning.

I’m not sure whether the bossy leaves idea will work, but I have dewaxed the silk and it will go into the steamer this week, along with several shibori scarves of a – thankfully – more compliant nature. Then I will creep up on the leaf-piece and see if it’s any good.

This new work is part of the series I call Australian Journey because the designs are based on colours, shapes and ideas from our trip to Western Australia in 2012. There is a bit more about it here and you can find other posts and images by clicking the Australian Journey link in the tag cloud.


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Some bits I like: shibori and wax

Extreme Ironing takes place at the start of making folded and clamped shibori and if I’m not in the mood, it can be tedious and exhausting. The next bit is great as it’s working with dyes, but the best is the Christmas Stocking moment of opening up each dyed scarf. That comes after the ironing, but before the steaming.

With wax it’s the other way round. You do the evil stuff after the creative work with wax and dyes is complete. There’s a lengthy sequence of de-waxing, steaming, cleaning and washing out residual wax, etc before the scarves are ready.

Flight of Birds: red
Shibori: clamped resist with steam-fixed dyes
Australian Journey: Pilbara
Shibori: clamped resist with steam-fixed dyes
Zig-Zag red
Zig-Zag multicolour
despatch

Labels, lists, tissue paper and scarves for despatch this morning

But however they are made, all scarves need a sewn-in label, a personal label / swing tag and a price tag with a stock number. My personal tags were designed for me by Chameleon Studio, a local Devon company. We chose recycled card and vegetable-based inks for the two types of label. I have one for natural-dyed and another for synthetic-dyed work; they look different but the design is related. On the left, you can see the two types of label. The buff label with plummy-coloured ink is the one I use for natural-dyed work. The full-colour image on an individual label is actually a sticker which I attach one by one. It was a brilliant idea of the designer’s to reduce costs on printing because sheets of sticky labels are much cheaper than full-colour printing on card. Once everything is labelled and listed for despatch to a shop or gallery there is always a list to fill out and a package to make up, followed by a trek down the hill to the local post office. Post-dog usually helps with this part of the process.

The latest batch of work has gone down to the Devon Guild of Craftsmen whose Christmas Show ‘Make 2013’ begins at the end of this week. It’s open daily from 10 am – 5.30 pm.


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BB2 Teaching dyes, Fusion and Sewing a Boat

Blog-Bite 2: Ardington update

The shibori course I ran at Ardington School of Crafts at the beginning of last month will be repeated on Thursday May 1st and Friday 11th July 2014. There will also be an introductory ‘taster’ day on natural dyes on 10th July 2014 plus a day on shibori using indigo on May 2nd. Look out for the courses in Ardington’s forthcoming programme.

Fusion at West Dean

On June 22nd and 23rd I took part in a new outdoor event at West Dean called Fusion. On the first day I was demonstrating and selling my work, and on the second I led three 90-minute workshops designed to introduce students to working with wax and dyes. The evening before Fusion, I arrived at West Dean to set up and the weather was fine and sunny. It was only a day off midsummer night and I took a walk up onto the hills above West Dean to look down on the tented site. The moon was up and great fields of oxeye daisies caught the evening light. It was like walking on paths through moonlight. Marvellous stuff, but no time to go all romantic because we live in England and it was the last fine weather we saw until Sunday afternoon.

Midsummer moonlight on daisies
Tents for Fusion in evening light
Workshop in progress
Painting the flower
Simple wax tools made from cork, wire and nails
Waxed and dyed silk square
Students’ work from flower workshop

Hot waxpots, dyes and fourteen students confined in a tent taking off for Chichester, anyone?  Not a mix I would normally recommend. But  with a few precautions all seemed to go ok. I was pleased with what students achieved. The sessions were carefully pre-planned and timed, with a basic traced design already on the silk so no-one had to panic because they were expected to draw anything. With the assistance of heavy-drinking Devon friends, I had made a set of simple tools using wine corks and wire which could be dipped into wax to make textures and lines. I offered students small, cheap, bristle brushes which wouldn’t drip wax onto the silk. For sessions two and three we pre-stretched the silk to save time, but students could choose colours and some tools and textures. Without friend and helper Fiona it wouldn’t have worked half so well, and here is a huge and grateful cheer for her.

HOORAY FOR FIONA!!

Sewing a Boat

In my last post I mentioned a family visit. My brother, who is well known for his epic perambulations in rather a small boat (see here)  has been visiting from Australia. In mid June we made a trip down to Falmouth, where several of his voyages have ended and begun and went to the National Maritime Museum. We saw the replica of the Bronze Age boat Morgawr which was built by a team of volunteers led by master boat-builder Brian Curnby. Paul Harry has made a brilliant time-lapse film of the building: see here.

Section of the boat showing sections sewn with yew withies

Section of the boat showing sections sewn with yew withies

One of the things that  fascinated me about the oak boat was that it was sewn together using yew withies. These appear to have been twisted into a kind of rope and pulled up very tight, probably assisted by shrinkage. From the Bronze Age onwards, English longbows were made using one stave of yew (Taxus baccata). The wood is very springy, and the sapwood and heartwood together combine to resist tension and compression. I don’t know all the techie stuff, but I ‘did’ Shakespeare’s Henry V for O Level.  I remember being not in the least interested in his tedious French wife, but far more intrigued by the English longbows used at Agincourt. There is more here about the history and the wood relating to bow making. Wikipedia has a page on yew trees with images of ancient examples from Northern Europe.

Possibly, the same qualities that made yew effective for longbows also worked well for sewing boats together, but I don’t know how the structure of the withies would differ from larger staves of yew used in bowmaking.  The most ancient trees in the British Isles are yew, with the oldest surviving wooden artifact from these shores being a spearhead an astonishing 400,000 years old – see link below.

White, T.S.; Boreham, S.; Bridgland, D. R.; Gdaniec, K.; White, M. J. (2008). “The Lower and Middle Palaeolithic of Cambridgeshire”. English Heritage Project.