Fibres

I thought i would create a post on fibres and other clothing materials. I will be describing how each fibre acts when it is put under a flame and set alight. I will also be explaining what the burnt fibre smells like and what the residue is like for each fibre.

Cotton – When put under a flame cotton will burn and not melt as it a natal fibre from animals. Cotton when burnt smells like burning paper or wood. And the residue is a fine grey ash which can be crushed into a small powder.

Wool – Is very similar to cotton when put under a flame as it burns and doesn’t melt. When burning it smells strongly of burning hair or feathers. However when removed from the flame is stops burning and the flame goes out quite quickly. The residue of burnt wool is a black hollow bead which can be crushed to black powder.

Silk – Silk when put under a flame burns and doesn’t melt. Smells of burning hair or feathers but doesn’t smell as strongly as wool as it doesn’t contain sulphur. It stops burning when removed from the flame. With the residue you are left with a black bead which can be crushed into a black powder.

Rayon – Rayon, when put under a flame burns and doesn’t melt. Smells like burning paper or wood, and after burning you are left with a residue of fine grey ash.

Polyester – As polyester is not a natural fibre, it can shrink from heat, melts, burns and can drip as a liquid. When alight the flame looks excited and starts flickering. When put under a flame it smells chemical like or sweet to an untrained nose. After being burnt, it is a hard cream or black bead that cannot be crushed.

Nylon – Shirks from heat, melts and can burn. Smells very similar to celery, and the residue can be left with a hard cream or black bead which cannot be crushed.

Acrylic – Shrinks from heat, melt and burns. Flame flickers when on fire. Acrid smell. Residue is hard black black bead that can be partially crushed.

There are many other natural and artificial fibres but i thought it would be for people to read about how each of these fibres act when under a flame. It shows that you can identify a fibre without knowing it at first glance, but under a flame you are able to quickly identify it.

Fibers are often used for forensic reason for the police to identify types of clothing or equipment used for a crime and knowing each fibre very well can make it much easier for an individual.

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