Fiber Properties
| Property | Evaluation |
|---|---|
| Shape | Fairly uniform in width, 12–20 micrometers; length varies from 1 cm to 6 cm (½ to 2½ inches); typical length is 2.2 cm to 3.3 cm (⅞ to 1¼ inches). |
| Luster | high |
| Tenacity (strength) Dry Wet |
3.0–5.0 g/d 3.3–6.0 g/d |
| Resiliency | low |
| Density | 1.54–1.56 g/cm³ |
| Moisture absorption raw: conditioned saturation mercerized: conditioned saturation |
8.5% 15–25% 8.5–10.3% 15–27%+ |
| Dimensional stability | good |
| Resistance to acids alkali organic solvents sunlight microorganisms insects |
damage, weaken fibers resistant; no harmful effects high resistance to most Prolonged exposure weakens fibers. Mildew and rot-producing bacteria damage fibers. Silverfish damage fibers. |
| Thermal reactions to heat to flame |
Decomposes after prolonged exposure to temperatures of 150˚C or over. Burns readily. |
The chemical composition of cotton is as follows:
- cellulose 91.00%
- water 7.85%
- protoplasm, pectins 0.55%
- waxes, fatty substances 0.40%
- mineral salts 0.20%
Read more about this topic: Cotton
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