Isabella Whitworth

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


2 Comments

Year Ending

How long have I been dyeing? Not as long as I have been rubbish at maths. A recent experience, when I messed up percentage calculations of mordant, has reminded me how useful it is to keep records. (If you aren’t a dyer, these percentages refer to the mordant weight required against the fibre/fabric weight to be dyed).

My end-of-year project has been to test my Rubia cordifolia, or Indian Madder. I ordered it in the summer from KMA Exports of Tamil Nadu, but haven’t yet had time to use it. A week or so ago I mordanted two Merino wool scarves, calculating the mordant at  8% alum + 5% cream of tartar. Only it wasn’t: my notebook later confirmed I had mordanted at about 1% each. Results on the first set of dyeings were disappointing (it was a surprisingly good red, considering inadequate mordant, but certainly not eye-popping) so I checked out my notes and revealed the serious mistake.

At this dark end of the year I was hoping to dye the cheery Meltdown Orange achieved with Indian Madder on the Carmarthen Association Summer School Workshop, run by Deb Bamford, in 2013. In trying to convey Meltdown Orange on this blog, I hit a regular problem. Colour inaccuracies accrue between camera, screens and editing programmes. Obviously, colour portrayed via a screen isn’t going to look the same as the actual item, but my phone and camera come up with strange slants on reality which I often have to rectify when trying to pin down a ‘true’ colour. It can be vital if I’m working with a researcher or conservator, or a client who needs to know the exact colour of a scarf they propose to buy.

There are three images below. In the image of wool dyed with Rubia cordifolia from Carmarthen (image 1), the colour on my screen is as near as possible to the original yarn I hold up against it. That’s because I fiddled with the settings. I have no idea what you will see.

I had a nerdy idea. With the MyPANTONE app on my phone, I used a photo of the dyed yarn to see how MyPANTONE could analyse the colour range. Image 2 is a screenshot from MyPANTONE. By the time the image has cybered from the yarn to the phone to MyPANTONE to email to an editing programme to WordPress and the screen I see here, it seems that the image had shifted to something stronger and sharper. On the app itself, I had selected what I thought were three typical ‘hues’.  This is done in the same way as an ‘eyedropper’ is used to select colour on an editing programme. The colours I chose were Warm Red C, Pantone 179 C, and Pantone 171 C. They are shown at the bottom of the screenshot (image 2) and seemed a reasonable representation of Meltdown Orange seen through my own, and MyPANTONE’s, eyes.

From a former life in the graphics industry I retain a printed Pantone set of colours. I checked the MyPANTONE colours against my printed set and compared the yarn to each printed colour. Warm Red was ‘too red’, Pantone 179 was brownish and Pantone 171 too weak. But Pantone 172, one shift away from 171, was an accurate representation. This is shown in image 3.

I am not sure what any of that proves, except that colour is a tricky old business.

Silks and wool dyed with various strengths of Indian Madder (and correct mordant)

Silks and wool dyed with various strengths of Indian Madder (and correct mordant)

Reverting to the dyepot story, I repeated the dyeing with correct percentages of mordant and was rewarded by much sharper and more intense orange-reds, on silk and wool. As well as recording the mordant I kept notes on the percentage of dyestuff needed to achieve deep shades on the scarves and found it to be higher than expected – at about 20%. That’s one fifth of a weight, I shall remind myself. I’ll try to do the calculations better next time.

Links: My blog about buying Rubia cordifolia here.

KMA Exports

Deb Bamford (The Mulberry Dyer)

MyPANTONE (for iPhone)

MyPANTONE (for Android)

Pantone UK

Advertisements


5 Comments

A Scottish Post

I’m just home after a fortnight in Scotland, which started at the annual DHA (Dyes in History and Archaeology) conference at the University of Glasgow. I tend to know people by their research – and that’s how they know me. Someone at DHA greeted me as Mrs Orchil: she could also have hailed a Dr Indigo, a Ms Madder and Professor Purple. It’s a friendly conference attended by many world experts in the fields of dyes and pigments, but it welcomes independent scholars like me as well as dyers and textile makers.

I wasn’t giving a paper this year so it was an entirely stress-free conference and I sat back and enjoyed it, or at least, all the bits I understood. There are always some technical papers at DHA concerning dye analysis; the ones packed with acronyms, graphs and molecular structures streak comet-like above my head. But factual gems can lurk amongst figures and statistics, so it’s worth not totally tuning out.

I took a small ‘suitcase’ exhibition with me about orchil and my research studies; most delegates came to look at it and talk to me, and as a result I learned new things about orchil from new perspectives.

The conference tour, after two packed days of papers, took us to Glengoyne Distillery for a fortifying wee dram preceding a tour of the plant, and thence to Stirling Castle where we visited the Tapestry Studios to see the final piece in the Unicorn Series nearing completion.

Sherry and tannins

The Glengoyne tour outlined the lengthy procedure for ageing whisky in casks. Casks are made from different types of oak, but have once held sherry (and some, if I remember correctly, Bourbon). The ageing whisky gradually absorbs colour and flavour from the sherry, and the tannins in the oak cask. The two images above illustrate ageing over thirty years in two different types of cask, with coloration intensifying every year. Evaporation is also evident, with around half the liquid being lost over the period. This lost alcohol is called ‘The Angels’ Share’.

Textile Tweets

About the pictures

Above is a small selection of textile-related images from Scotland, most of which I tweeted during our trip. My obsession with dye lichens was rewarded by finding Ochrolechia tartarea alongside Loch Ewe, and Lobaria pulmonaria  at Oban; Parmelia saxatilis and P. omphalodes were growing at many locations.  Note: I was looking, not collecting. A Gaelic-English Dictionary in a hotel room confirmed that in Gaelic crotal refers to boiling water method lichens, but corcur to orchil lichens. If you want to know what orchil is, or read more about my research and views on dyeing with lichens, please visit this page.

Turkey Red

I spent a week with Deb Bamford (aka The Mulberry Dyer) learning how to dye Turkey Red at a Summer School in 2013. Read about it from this blog post forwards. In Scotland I found remnants of the Turkey Red industry buildings at Alexandria, on Levenside. There is a great website about the Turkey Red industry here. And read this wonderful book:

Colouring the Nation: The Turkey Red Printed Cotton Industry in Scotland c1840-1940 by Stana Nenadic and Sally Tuckett. Published by National Museums Scotland. From Amazon here.

Unicorn Series: Stirling Castle and West Dean Tapestries

For more on the Unicorn Series, go here for the Stirling Castle story, and here for West Dean’s version.

 Glengoyne Distillery, Dumgoyne Glengoyne Distillery


4 Comments

Oddments

photo

Packs of indigo and Rubia cordifolia, (Indian madder) shown with Phytosanitary Certificate

My latest excitement is today’s arrival of a parcel from India, containing indigo and Indian madder (Rubia cordifolia) from the excellent KMA Exports. I am sharing the consignment with a friend because the freight is expensive and costs more than the dyestuff, but it took just one day to arrive from Tamil Nadu. Sometimes a parcel takes longer from Okehampton. It would have been here earlier but import regulations into the UK now require fumigation which takes a bit longer; the Phytosanitary Certificate confirms that my consignment is free of Khapra beetle (Trogoderna granarium) and other quarantine pests.

Having tried Rubia cordifolia with Deb Bamford at Summer School last year I can’t wait to have another go. It produced the most astonishing colour on wool.

A highspot of recent weeks was a short trip to Finistère in Brittany, in the glorious weather also enjoyed in the UK that week. I enjoyed seeing fine examples of Breton embroidery, something about which I knew nothing, in the Musée Bigouden, Pont l’Abbé. There is an informative page about traditional Breton costume here from which I’ve learned a lot. You can see a photo of the embroiderers of Pont l’Abbé at the top of the page. Until I studied the caption I thought it was a very old photo, but it is dated to 1976, when I was about the age of some women in the picture. Perhaps that does make it a very old photo, come to think of it.

Several walks along the coast west of Douarnenez offered stunning views over the sea and as always, I was on the lookout for lichen. I don’t collect it, but I like to find it; my views on actually using lichen for dyeing are here. A knowledgeable colleague has told me that one of my images probably shows an orchil lichen, one of the Roccellae, which cheers me up now I’m back and the weather has changed.

The historic cork floats and netting tools, which I found rather beautiful, were in the window of shop selling fish in Audièrne. Without a given explanation, I must assume the carved names once indicated owners of nets. When I lived on the west coast of Scotland I remember several vitriolic exchanges over ownership of creels, buoys and nets. This appears to be a simple way of marking equipment.

 

I’m teaching three courses at Ardington School of Crafts from Wednesday. Natural dyes on Wednesday 9th and Thursday 10th, and shibori with synthetic dyes on Friday 11th. If you’re coming, I look forward to seeing you there.


3 Comments

Installations, pasties and Turkey red

I’ve found a link between art installations and our family’s Pasty Evaluation Test. We live in the South West, the traditional home of the pasty. Most local bakers produce pasties and whole businesses are devoted to their making, including one of our favourites, The Original Pasty House in Tavistock. What is the Pasty Evaluation Test? Taste and healthy ingredients are part of it, but the initial stage is to check how many bites it takes before you achieve something other than pastry-coated air.

It’s the same with installations. I’ve seen many that beckon appealingly but prove increasingly unrewarding and wearisome post-first-bite. I don’t want to pre-read screeds of explanation telling me what to think, so if an installation doesn’t communicate after a decent period of interaction, then for me it’s a non-starter. 

I remember some good ones such as Jaume Plensa’s gongs at The Baltic in 2002. (Note: YouTube link shows them at the Yorkshire Sculpture Park where they seem arranged in a different way). They glowed in changing light and there was a timeless, temple-like quality to the space where silence and sound defined each other. People sounded the gongs with great intensity and contemplated powerful reverberations. Others seemed embarrassed to hit the gongs, as if they needed permission. A further cohort transformed into delighted children, shattering reverence with indiscriminate boing-ing and restaging the experience as wicked fun. It ended up as much about watching people as listening to gongs.

Not quite on the same scale, but I did enjoy two installations at the Devon Guild of Craftsmen this week. The first was Tina Hill’s Excavating Babel, a striking, tall spiral of over 2000 once-discarded books set in dust on a dark plinth. The books had been stripped of their covers, and thus identity, revealing a structure of sections and linen stitches, showing that books are, or can be, sewn together.  Created with books set uniformly with spines outwards, the inner spiral could be entered. It enclosed, isolated and insulated the visitor with a dense paper barrier. One was aware of millions of pages of muffling, unknown stuff.  What was this no-longer-needed information? There were interesting supporting notes to read, which afterwards I did. But Excavating Babel worked on several  levels without explanation, and thus passed the equivalent of the Pasty Evaluation Test.  You can see more about it on Tina’s own site here. Excavating Babel is part of the Devon Guild of Craftsmen exhibition Narrative Remains and you can see it until 23 March.

In the Riverside Gallery, also at the Devon Guild, is another exhibition called Love, Loss and Laundry.  This can be seen until March 16th. Through stitch and fabric Jacqui Parkinson commemorates the lives of destitute women and girls who worked in Devon House, Bovey Tracey. Devon House was run by Anglican nuns of the Clew Sisterhood – the notes record that they were largely a kindly organisation.  The refuge they offered allowed some girls, at least, to obtain respectable jobs in service and even to marry and have families of their own.

Women and girls were mostly occupied with laundry and sewing. Dirty sheets were washed, torn clothing darned, linen patched. But many inmates of Devon House lived or were buried unnamed. If it were not for the 1911 census records, their lives might have left no trace.  Anne Liebermann’s embroidered linen squares record some of these lives in the delicate red cross-stitching of their names from the census. Jacqui has sewn these onto squares of an old bedspread where layers of old fabrics can be seen. The squares resemble the padded fabric the girls would have used to hold an iron and the names are haunting and moving.

I have just enjoyed reading ‘Colouring the Nation’, a book about the Turkey red industry which set up along the Clyde and Vale of Leven in the nineteenth and twentieth centuries. One of the fabrics in the installation (the one on the right, above, with the fan) looked very like a Turkey red or Turkey red derived pattern, and the dates fit.

Thanks to the Devon Guild of Craftsmen and the artists involved in the two exhibitions for permitting photography of their work.

book

Colouring the Nation: The Turkey Red Printed Cotton Industry in Scotland c1840-1940

by Stana Nenadic and Sally Tuckett. Published by National Museums Scotland

From Amazon here

There is an associated website which is well worth a visit for its text and searchable images. There are 501 available to see from the full 40,000 contained in the pattern books now held by National Museums Scotland.

http://www.nms.ac.uk/turkey_red/colouring_the_nation.aspx