Natural dye

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-Natural dyes are dyes or colorants derived from plants, invertebrates, or minerals. The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, wood, fungi, and lichens.

Archaeologists have found evidence of textile dyeing dating back to the Neolithic period. In China, dyeing with plants, barks, and insects has been traced back more than 5,000 years.The discovery of man-made synthetic dyes in the mid-19th century triggered a long decline in the large-scale market for natural dyes.

Many natural dyes do not adhere very well to the fibers and need the help of a mordant.

MORDANT: The mordant is a substance add at the dye bath to enhance the fastening process of the dye into an organic fiber.
– Aluminium acetate (which is a very fine powder)
– Alum & tannin using the three-step alum-tannin process.
-Alum, can be used with all kind of the fibers
-Alkaline
-Copper
-Iron liquor
The same modifier as a Acidic- Alkaine – Cooper or Iron in combination with different mordants will produce different colors as well.

(http://www.allnaturaldyeing.com/mordants-fixatives/)

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TEST_
steps:

1_PREPARE FIBERS

  •  Use a selection of different fabrics/ Yarns to test different property.
    Using a small swatch for each sample might be more practical.
  • Measure the weight of the fabric ( It will be important to know the correct amount of mordant to use)
  • Wash the fabric or yarns if you want colors that are fast and bright, your fiber must be very clean before you mordant it, otherwise neither the mordant nor the dye will penetrate properly.


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2.PREPARE DYE

For the Mineral dye, The color comes in a  powder form. Diluted the powder with water, to have a creamy consistency and us it as much as required in a bigger pot of water.

For the Vegetable or Plants:

  • Chop the vegetables adding a bit of water to help the extraction
  • Remove excess of water
  • Place the vegetable chopped in a heatable pot with 3/4 of water, let it boil for 1h

MINERAL OR DRY PLANT

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BEETROOT
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3. CHOOSE THE MORDANT

  • Add Mordent, 10% of fabric weight, in the colored water.
  • Add Iron, 4% of fabric weigh to change the color.

4.COLOR BATH

  • Add the pre-Soak the fabric in the colored water, stirring actively.
  • After a 3h take out the fabric and wash it.
  • Use a PH neutral soap to wash the fiber.

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Note: The mordant is a very fine powder, weigh it carefully and use a mask when weighing this and other fine powders.

NOT JUST FIBER ALSO BIOPLASTIC 

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