For Teacher: Preparation Have song playing as students walk in and work on dyeing/weaving (song...

For Teacher: PreparationHave song playing as students walk in and work on dyeing/weaving

http://www.youtube.com/watch?v=jIhRderZTPU (song about the Shammanew- the people who weave fabric in Ethiopia)

Websites on dyeing:http://www.knitty.com/ISSUEfall02/FEATdyedwool.html

http://www.articlegems.co.uk/scinet/chemistry/cd/dyes.php

Weaving videoshttp://www.youtube.com/watch?v=atynCzCTkdQ http://www.youtube.com/watch?v=Q28J8POlRaQ

Created by: Meghan Chidsey, Teaching the Human Experience Ethiopia 2009

Catalyst11/12/09

Describe what the following is photo depicting:

HOMEWORK:Draw a design for weaving placemat

N7

14.01Created by: Meghan Chidsey, Teaching the

Human Experience Ethiopia 2009

Weaving Traditions of Ethiopia


History of Weaving

• Passed on for many generations

• Weaving communities within cities and towns

• Sheromena, Addis AbabaCreated by: Meghan Chidsey, Teaching the


The Process of Weaving• Cotton is obtained from cotton plants or

purchased from growers


The Process of Weaving• Cotton is spun into thread by women using a

wooden spooling tool called a ___________


The Process of Weaving• Spun cotton is then washed, dyed, and hung

out to dry


History of Dyeing

Natural Dyes throughout the world:

- Extracts from flowers, animals, barks, roots, dry woods, fruit, leaves, etc- Red: madder root, cochineal beetles - Yellow: goldenrod, onion skin- Blue: indigo, red cabbage- Brown: black walnutsCreated by: Meghan Chidsey, Teaching the


History of Dyeing


Chemistry of Dyeing- Some dyes just stain thread, so it

continues to wash out- Other dyes chemically attach to molecules

of the fabric and can never be washed out


Chemistry of Dyeing- Cotton- long strands of cellulose

molecules, twisted together


Chemistry of Dyeing- So how do we get the dye molecules and

the cotton cellulose molecules to stick together?

MordantMetal ionsUrineAlum (potassium aluminum sulfate)Salts- sodium, chromium, copper, iron, tin, iodineTannic acid


Chemistry of Dyeing

MordantingA process where a mordant firmly attaches to cotton fibers and then binds the dye molecules

Effects the color: Iron (II) - brownAluminum- redTin (II) – pink


Chemistry of Dyeing

Mordanting

Dye molecule attaches to a mordant which then binds to the wool fiber (opposite charges)


Chemistry of DyeingVisible color


Chemistry of Dyeing

Ethiopian natural dyeing- Extracts from locally grown vegetables


Hand-made Natural Dyes!

• Today, you and your group members will be working to create your own natural dyes.

• Each group will be dyeing wool yarn

• Groups of 3-4Created by: Meghan Chidsey, Teaching the


Materials• Wool yarn• Hot plate• H2O

• Beaker• NaCl• Vegetable/fruit- red cabbage leaves, yellow onion

skin, blackberries, raspberries• Plastic knife• Tongs• Drying rack Created by: Meghan Chidsey, Teaching the


Safety

• Be careful with Hot plate- use tongs & gloves• Be careful with Plant dye- stains


Catalyst11/12/09

What is necessary to make dyes bind permanently with clothe fibers?

HOMEWORK:Finish weaving placemat

N7

14.01

Mordents- metal salts


Post Dyeing


The Process of Weaving• Once dried, the thread is spun onto large spools

manually by the men


The Process of Weaving


The Process of Weaving• Yarn is then turned on a machine into smaller

spools to be used during actual weaving


The Process of Weaving• Using a loom, sometimes dug into the ground,

men can weave scarves, blankets, dresses, etc

http://www.youtube.com/watch?v=atynCzCTkdQ http://www.youtube.com/watch?v=Q28J8POlRaQ


Ethiopian clothing


Ethiopian Weaving

• Using our dyed yarn from yesterday and a 12” cardboard loom we will create our very own Ethiopian-inspired placemats


Ethiopian Weaving Materials

- Cardboard loom- Warp thread- Pre-dyed Yarn- Plastic needle


Making the Loom- Warp- Tie note 6” down from end of string- Hook through first cut and thread string up and

down, keeping it only on one side of the board- At the end, tie string with the beginning on the

back of the board

- SEE FOR EXAMPLE!



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For Teacher: Preparation Have song playing as students walk in and work on dyeing/weaving (song...

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