£4.50 inc. VAT
Lac (Gum Lac – Coccus lacca) [10g]
Made from the Lac beetle, this has been turned into a powder, ready for dyeing. The Lac beetle has been extracted from the Shellac which is found on trees in India. The shellac is then cleaned and used for varnish.
Use at 75% to dry weight of fibre.
An Alum mordant is required for protein fibres.
A tannin and Alum or Aluminium Acetate / Aluminium Lactate can be used for all cellulose fibres.
For cellulose fibres use either
Aluminium Acetate at 5% in a heated mordant bath.
Aluminium Lactate at 5% in either a cold or heated mordant bath.
Not food safe, so please do not make a drink with this dye.
The picture shows wool which has been mordanted with alum, then dyed with lac.
The left-hand skein shows how all the skeins originally came out of the dye pot. The other four were each dipped into a different modifier bath for approximately 10 minutes. From left-to-right these modifier baths were Citric Acid, Ammonia, Copper and Iron.
The dyed samples are as follows
Alum – no modifier = pink
Alum + Citric Acid = pale pink
Alum + Ammonia = deep pink
Alum + Copper = brown pink
Alum + Iron = brown
19 in stock
International Customers: Please make sure your country will accept plant material through the post, we will not be responsible for any item refused or destroyed by border control.