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Hair & Fiber
Question | Answer |
---|---|
What fibers are mineral? | Glass, asbestos. |
What fibers are from animals? | silk, wool, fur. |
What fibers are Veggie? | cotton, linen, hemp. |
What fibers are synthetic? | rayon, nylon, acetate. |
Cortex | the largest portion of the shaft giving you the hair color that you have. |
Cuticle | The layer of cells that cover the surface of the shaft. |
Medulla | cells that fun down the center of the cortex like a canal. Central core of hair. |
Tricholody | The study of hairs. |
Coronal | crownlike |
Spinous | Petal like. |
Imbricate | Flattened |
Medullary Index | Width of hair relative to width of medulla |
Human Medullary index | around 0.3 |
Animal medullary index | greater than 0.5 |
burn tests? | residues, beading, smoke, characteristic odors. |
Solvent/ Solubility test? | HCl, NaOH, bleach, acetone, dry cleaning solvent. |
Stain test? | will blood stain the cloth? Will blood bead off? Is this lipstick. |
Microscopic Tests? | Weave, braids, folds, twists, translucency, fraying. |
Two most common collection methods? | Tape and Vacumming methods. |