====Class 4 : BIO DYES & BIOFABRICS ====
==== Alum Cristalization  ====


<panel type="default" title="Technics">

  * Alum Cristalization
  * Crystal Molding
 

</panel> 
<panel type="default" title="Material">

  * water
  * alum powder
  * silicone

</panel>

<panel type="default" title="Tools">

  * measuring glass
  * wooden batonet 
  * string (I took one with a lot of fiber)
  * a laser thermometer
  * an electric plate or kettle

</panel>

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=== Assignment Project Description ===
**//The students can work in group, identifying tasks and splitting them, as long as they all proof they are able to carry out each task. They can choose to: Produce at least one natural dye, modifying it’s colour and mordanting it in different ways to dye at least 2 different categories of fibers. Explore dyeing with bacteria of different fibers and bacteria.//**

Testing crystallization with alum and crystal molding in silicone

=== Inspirations & References ===
{{:fabricademy2017:students:julie.taris:inspiration-cristal_1_.jpg?100|Crystal dress - Iris Van Herpen}}
{{:fabricademy2017:students:julie.taris:inspiration-cristal_2_.jpg?100| Colar decorations }}

== 1/ boil the water at 35 degrees.==
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== 2/ mix alum with water until the water is as clear as possible ==

(the more alum you put in, the faster the crystallization is fast)

== 3/Place the stick on top of the glass as you go.==

==4/Immerse the strings in the mixture.==
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==5/72 hours after....==
{{:fabricademy2017:students:julie.taris:julie-taris-criztalisation_12a_.jpg?200|}}

==6/crystals formed around the strings==
{{:fabricademy2017:students:julie.taris:julie-taris-criztalisation_12b_.jpg?200|}}
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==7/and the bottom of the glass is filled with small crystals==
{{:fabricademy2017:students:julie.taris:julie-taris-criztalisation_13_.jpg?200|}}

==8/the crystals are filled with water and melt in the heat==
{{:fabricademy2017:students:julie.taris:julie-taris-criztalisation_17_.jpg?200|}}


===Mould test ===

After several days, the crystals are stronger.

==1/ small crystals are dipped in silicone==

==2/After 4 hours of drying==

==3/ crystals and silicone are distinguished by transparency==
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{{:fabricademy2017:students:julie.taris:julie-taris-criztalisation_18_.jpg?200|}}

==4/ the shape of the crystals is well impregnated in the silicone==
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=== Improvements and Challenges ===
To continue the test with moulded crystals in silicone, the next test will be carried out on a 1mm sheet of silicone with mini crystals.
the sheet is then cut out as a pattern for clothing or accessories.