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Fibers and Threads

QuestionAnswer
Mineral earth, glass, asbestos, etc.
Animal silk, wool, fur
Vegetable cotton, linen, hemp
Synthetic rayon, nylon, acetate
What are some tests that will help to identify a fiber? burn test, solvent/solubility test, stain test, and microscopic test
Burn test burning a fiber can give you hints on its origin; characteristic odors, residues, beading, and smoke/smolder
Solvent/Solubility test test to identify if the fiber dissolves in a certain solvent, usually use these solvents: HCL, NaOH, Bleach, Acetone, Dry-cleaning solvent
Stain test a test to see if blood stains the cloth, if the blood will bead off, and if it is another substance.
Microscopic test a test to see what you can see using the microscope; weave, braids, folds, twists, translucency, fraying, etc.
Tape method using tape to collect fiber evidence
Sweeping/vacuuming method uses a vacuum to collect fiber evidence, however it collects all the other debris as well.
Created by: TBrylewski
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