Gallnut Mordant

Ethical Making

Sustainable

Traditional

I use a Gallnut extract to mordant fabric in preparation for Iron ink printing and plant based dyeing. Oak Gallnuts are rich in tannins and are used to bind colour to fabric and increase colour fastness.

Material

Pigments and glazes
Wood

Craft

Printing
Textiles

General Technique

Combining
Structural modifying
Surface modifying

Specific Technique

Mordanting Fabric

Properties & Qualities

Application

Accessories Furnishing Product

Qualities

2D Colourful

Colour

Brown Earth-colour

Sample Information

Date of Creation

April 27th, 2023

Weight

10g per 100g of fabric

Culture & Context

Oak Gallnuts are rich in tannin and have been used throughout history to preserve and bind dye to fabric and leather. Oak Gallnuts can be identified through their hard shell which has a little hole at the top, they can be found under the canopy of a Oak tree when they fall to the ground. Oak Galls are made by the tree when wasps lay their eggs as a form of defence, however the gallnut provides the eggs with protection and when the wasps hatch they make the small hole to get out.

Process & Production

Dilute Gallnut powder with a little hot water to make a paste then mix it into a pot of hot water and simmer for an hour. Submerge dampened fabric and leave for 24hrs stirring occasionally to ensure even distribution.

Recipe Details

Use 10% of Gallnut powder to the weight of your fabric.

Credits

Craft Maker

Sarah Diver Lang

Library Contributor

Sarah Diver Lang

Photographer

Sarah Diver Lang

Other Materials

View random material