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Showing posts with label cleaning a fleece. Show all posts
Showing posts with label cleaning a fleece. Show all posts

Thursday, 17 April 2014

How to prepare wool for felting.

I usually buy merino already washed and dyed to make my felt pictures but occasionally want to add texture with different fibres. I was able to source a Wensleydale fleece directly from the farmer and decided to dye some of it to use. Wensleydale sheep have naturally curly fleece which can be great for hedges and foliage in a landscape.
It is quite time consuming and it occurred to me that some felt makers may not know how to do it so I am giving the instructions here.
All sheep have a grease called lanolin on their fleece. It is often used as an ingredient in moisturisers and shampoos. Lanolin protects the sheep from wet weather as water will run of off a greasy fleece and not be absorbed in to the fibres. This is great for the sheep but not for us felters! The Lanolin must be removed before dying as it stops the dye from being absorbed. This is how the raw fleece looks.
The lanolin causes the yellow discolouration that you can see and a distinct sheepy smell. Some fleeces will also contain bits of straw and other debris. They will all be dirty as the sheep has been wearing them for a year!
Your first job is to pick out any straw, grass, brambles and any other obvious 'bits'. Next you will need to remove the lanolin. You will need a saucepan or metal bucket that will not be used in food preparation. Put enough cold water in it to cover the fleece and add a cleaning agent. Washing up liquid will do at a pinch.
Put the fleece in the pan and begin to heat on a low setting. If it is heated too quickly it may begin to felt. The water will quickly turn a disgusting dirty yellow colour.
Bring to the boil and simmer gently for a few minutes. Then drain away the dirty water and repeat. You will probably have to repeat 3 or 4 times before the water runs clear.
When all of the grease is removed the fleece should smell a lot better and feel and look white and shiny. Now you can dye it. Use an acid dye and follow the manufactures instructions as different brands use slightly different methods.
Here is mine hanging out to dry.
And here is the completed felt.
The hedge next to the cottage is made from Wensleydale as are some of the flowers in the foreground. Here is a close up view.
Happy felting!