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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:

1. Picked up samples of different plants.
2. Then plants will be boiled until obtaining their dyeing which will be filtered. Let it cool down till lukewarm.
3. Cotton fabric pieces will be introduced in the obtained liquid for 12 to 24 hours. Depending of the type of the plant can be boiling for 30 minutes.

4. In this aforementioned liquid and in another container, wet fabric pieces will be introduced previonly gnawed
5. Now we compare, the dyeing capacity of both fabric pieces previously treated with  gnawing to the untreated ones.
6. Dyeing ability of boiled fabric is compared to the capacity of unboiled pieces of the same material.

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.  

Gnawed fabric:

•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.  

PLANTS DYEING CAPACITY

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?