Objetives:
1.Observing our plants tinctorial ability.
2.Producing natural dye from plants.
3.Apperciating this natural resourre against corrent synthetic products.
Contents:
To prove, by means of this experience, plant pigments tinctorial ability.
To be able to find plants in our environment which have a high tinctorial ability and have traditionally been used. The used plants parts can be root, stems and leaves, flowers, fruits or bark.
Materials:
–Tinctorial ability plants samples.
–Cotton fabric pieces.
–Alcohol
–Water
– Gnawing: sulfate aluminium
– Electric plate, beaker, glass rod, strainer, filter paper.
Methodology:
Advice:
When using a certain part of a given plant, this one must not be boiled with other different parts. That is, petals must not be boiled with stems or roots.
If the material is hard as a root, it is recommended to macerate suck material in alcohol for several days and boil it later in water.
•Pour 5 gnawing teaspoous into 2 liters of water.
•Stir it up immerse cotton fabric which will be kept in the boiling point for an hour.
•Take both fabric pieces out of the water and, after being drained, it will be ready to be dyed.
1.What is aluminium sulfate used for?
2.What is the purpose of boiling plants?
3.Are there any differences between a dyed frabic with gnawing and one without it?
4.Where are vegetable cell pigments concetrated?
5.Which plant has a higher grying capacity?