At Ceres we often use Potassium Aluminium Sulphate (alum), as the mordant to increase colourfastness and lightfastness of natural dyes. A synthesised version of crystal chemically prised from rock and shale and prized by emperors, kings and popes. Ancient trades of empires long fallen, and secrets stolen in tall-ship heists. Pollution and corruption in the textiles industry already apparent a Millenia ago.
The Symplocos cochinchinensis tree accumulates aluminium from the soil, and fallen leaves become a rich source of alum. Use of this plant derived mordant helps protect the endangered forests of Indonesia and offers an alternative to chemical mordants.
We did some tests to understand how well the symplocos alum performed alongside synthetic alum.
Printed pastes from top to bottom:
Madder and symplocos
Madder and alum and calcium carbonate
Madder and alum
Modifier stripes from left to right on each sample are citric acid, sodium carbonate, ferrous sulphate.
Symplocos is as wash-fast as alum, but it’s yellower base colour makes it better with the warmer colours.
Designing a Learning for sustainability workshop for Ceres and UAL students (module for MA in Academic Practice)
Strolling edge-boundaries of research into printed textiles sustainability. Discovering and acknowledging existing paths that intersect between problem and process.
Investigation of cultural identity, miles travelled by colour, appropriation of heritage patterns, or preservation of the craft. The field narrows, earth-horizon reached, honing to natural dye-print colours. A workshop that uses dyes as a vehicle to explore, discuss, and confront the complexity of sustainability in education. A workshop that assumes natural dyes are chosen over synthetic dyes because of design potential, availability, aesthetic beauty, or historical accuracy. The dichotomy of synthetic versus natural dye, a choice referenced but not focused on.
Observant of place-learning, the workshop invites students to explore their location; to forage, investigate dye gardens, or gather bio-waste To bring dye-plants to the workshop, and link learning to habitats. Colour palettes balanced by the suggestion of imported dyes alongside the indigenous and home produced. Personal concepts and perceptions of sustainability discussed and recorded onto hand-printed maps and digitally shared on Padlet.
Using the provenance of dye-plants to research colours within the context of sustainability. Knowledge of the origins of the dye enables students to study specific economic, social and environmental concerns. The collaborative making of colour-pastes in the workshop, printing of designs, visual documentation onto maps, and ensuing discussion embeds sustainability into practice.
A plethora of dye-stuffs were introduced during the workshops:
Red onion skins from the Cambridgeshire, via the Twickenham farmers market.
Saffron from Spain.
Bio-waste colours; cleverly feeding the population, then releasing colour before composing.
Imported dyes; some companies were transparent about their origins, some less knowledgeable. I had hoped for a country, a region, a farm, or a single field. Instead I’m told Europe. Insufficient information to allow accurate judgement of human rights, water management, or land husbandry.
Ancient colonial colours; exploited skeletons of trafficked slaves.
A workshop of collecting, fabricating, discussing, and reflection. Making informed influential sustainable textile decisions. Printed maps, fabric samples, and digital interpretations are process snapshots, not scientific rationale. Work in flux. Setting sustainability horizons, but not boundaries. Participatory sharing of knowledge, creating a symbolic collaborative-cooperative-Commons product, that maps student’s sustainability thinking. Reach expanding.
Books and articles that particularly influenced this workshop were:
4 Plants of Bondage, Limbo Plants, and Liberation Flora: Diasporic Reflections for STS in Africa and Africa in STS by Geri Augusto.
Ceres studio 1 is a contemporary natural dye print studio in London. It was established by Lara Mantell and Florence Hawkins as a collaborative venture to share knowledge and experimental work with natural dyes. The duo have individual yet complementary areas of expertise; Lara’s in textile design and natural dye printing onto fabrics, and Flo’s in printing with natural dyes on fabric and paper. This expertise and enthusiasm has led to their Brixton studio becoming a hub of colourful natural dye research and design projects.