#5- Research initiatives-Bethany Huizenga

  Blog 5- Cotton and Bamboo Videos 

Fiber Identification by burning:
ii. https://www.youtube.com/watch?v=e2RyE7i0sCk
- cotton- burns, doesn’t melt, smells like burning paper or wood, residue: fine gray ash
- Falx- burns, doesn’t melt, smells like burning paper or wood, residue: fine gray ash
- Wool- burns, doesn’t melt, strongly smells of burning hair or feathers, stops burning when removed from the fire, residue: black hollow bead that can be crushed to black powder. 
- Silk- burns, doesn’t melt, strongly smells of burning hair or feathers, the odor is not as strong as wool, stops burning when removed from the fire, residue: black hollow bead that can be crushed to black powder. 
- Rayon- burns, doesn’t melt, smells like burning paper or wood, residue: fine gray ash
- Polyester- shrinks from heat, melts, burns, can drip, smells chemical, sweet, residue: hard cream or black cored bead that cannot be crushed.
- Nylon- shrinks from the heat, melts, can burn, smells a bit like celery, residue: hard cream or black cored bead that cannot be crushed.
- Acrylic- shrinks from heat, melts, and burns, sputters when burning, acrid smell, residue: hard black bead that can be partially crushed.
- Acetate- shrinks from heat, melts, and burns smells like burning cellulosic fibers (of burned wood, paper) with a bit of vinegar, residue: hard black bead that can be partially crushed.


Bamboo:
 https://www.youtube.com/watch?v=cElGZ4WF5Fs
They harvest the Bamboo. The cuts need to be as clean as possible to allow new shoots to grow and naturally replenish. Then the stocks are cut into smaller baboo chips and soaked in water. Bamboo pulps is made after the bamboo chips have been soaked. They dos this by grinding up the chips and putting them in more water. Then the Pulp is dried into sheets. Once dried, the sheets of pulp are ground and spun into bamboo fiber.


Technical Cotton:
https://www.youtube.com/watch?v=g7SZ3gRrktc
Cotton
- Seed Fiber
- Pods on bushes
- Cellulosic Fiber
- Varieties as per staple length 
- Good moisture absorption 
- Types: Egyptian, Sea-Island, American, Indian, Etc..
- Vegetable Fiber 
- Density: 1.52 gm/cm^3
- Classified as per length 
    o     Short staple length: 3/18 to 15/16”
    o     Medium staple length: 1” to 1-1/8”
    o     Long staple length: 1-3/16” to 2-1/2”
- Diameter: 11 to 22
- Fiber length to breadth ratio: 6000:1 about 350:1
- Cross section: Kidney shaped fiber 
Morphological Structure of Cotton 
- Cuticle 
    o     Outermost wax coated layer 
    o     Smooth, water-resistant coating, which protects the fiber form chemical and other degrading agents
- Primary Wall
    o     Thin cell wall below cuticle 
    o     Consists of fibrils of cellulose spiral at 70*
- Secondary Wall
    o     Concentric layers of cellulose below primary wall
    o     Fibrils spiral at about 20* to 30* to the fiber axis 
- Lumen 
    o     Central hollow region running along the fiber length 
    o     Filled with cell sap during growth period



Comments

  1. KatieSeptember 28, 2024 at 7:23 PM

    The information that you covered is very fascinating and you did a great job of summarizing the main points of the videos.

    ReplyDelete
  2. Eliana JohnsonSeptember 29, 2024 at 9:19 PM

    I love how well you summarized the videos and gave a lot of detail in how you explained it

    ReplyDelete

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