Blog 6- Research initiatives
The Supima Story
- Supima is a special and rare long staple cotton that is grown on family farms in California.
- It is known as the world’s finest cotton.
- It is strong a soft. The Cotton and its color last for a long time
- It is the cotton of choice for the world’s leading designers and retailers.
- On average it is 35% longer than regular cotton.
- Its length creates smother and cleaner yarns. The result of this is that the fabric is softer to the touch and more resistant to pilling.
- Supima is 45% stronger than regular cotton.
- This allows Designers to use fabrics that are lighter and drape beautifully.
- Its fibers are finer than regular cotton. This means that dies soak through the fibers more which makes their color last longer.
- Supima represents less than 1% of cotton worldwide.
- Supima cotton was developed over 100 years ago in Arizona.
- The name comes from Superior Puma recognizing the cotton's special qualities.
https://www.youtube.com/watch?v=Uds7rJRQ-wA
Making Rayon Fiber
- In This video they do an experiment where they make Rayon fibers
- To do this they need a basic Copper Carbonate.
- The substance forms by combining copper sulfate and backing soda.
- Steps:
o
Take a beaker and pour about 4g of basic copper carbonate.
o
Next, they had a concentrated solution of
ammonia. They use about 14ml 25% ammonia solution
o
Then you pour the ammonia solution into the
copper carbonate. This forms a complex compound of copper which has a bright
blue color.
o
Then pour the liquid into another beaker for
the solution to become clear.
o
Now they have a copper compound complex, this solution
can dissolve cotton and wool.
o
Then you slowly add wool to the copper complex solution.
The wool is slightly soluble and forms a viscose.
o
This is a raw material needed for the production of artificial
silk and it has become thicker.
o
Then you prepare 1 mol of sulphuric acid.
o
Then you put the copper compound in a syringe and
slowly squeeze it into the Sulphuric acid and that creates the fiber. And let
it sit and they will become colorless.
o
Then you can pull them out a feel them.
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