Alkanna rødder 200 g - Alkanet
Alkanna rødder skal opløses i sprit.(eller billig vodka) Alkanna (Alkanna tinctoria) Giver farven rød, violet, lilla.
dæk alkanetten med spiritus i lufttæt beholder. (sprit lugter faktisk fælt så jeg bruger billig vodka) lad det trække en uge, filtrer gennem en si.
tør den brugte alkanet, eller hæld spiritus over den igen og lad stå, gerne i flere uger, der er masser af farve tilbage.
Alkanet is a natural dyestuff extracted from the root of a European plant, Alkanna tinctoria, which grows in Southern Europe such as Hungary, Turkey and France. The coloring agent is alkanine. Small amounts of alkanane are also contained, as well as two acids belonging to group of naphthochinones: anchus acid, also called anchus red, and alkana acid (alkana red). Alkanine is not soluble in water, however it is very good soluble in alcohol, ether, oils, chloroform und glacial acetic acid giving a red color. It is also soluble in alkalis giving a blue color. A further extract can be made with isopropanol or with petroleum ether. Wool, cotton or silk can be colored with this extract on aluminium mordants giving nice violet hues, and with iron mordants green hues are achieved. Unfortunately the resistance to light or to alkalis of these colorants is not very good. The lightfastness is 3 to 4
70105
Specifikke referencer
Alkanna rødder skal opløses i sprit.(eller billig vodka) Alkanna (Alkanna tinctoria) Giver farven rød, violet, lilla.
dæk alkanetten med spiritus i lufttæt beholder. (sprit lugter faktisk fælt så jeg bruger billig vodka) lad det trække en uge, filtrer gennem en si.
tør den brugte alkanet, eller hæld spiritus over den igen og lad stå, gerne i flere uger, der er masser af farve tilbage.