What Is Textile Fiber Burning Test?
The burning test is a good preliminary test for categorizing
The Method of Fiber Burning Test
The sample to be tested should be in fibre form. A single yarn from a woven or knitted fabric should be untwisted to produce a tuft of fibres for testing. Use the following instructions, and observe the reactions of the burning fibre very carefully.
1. Hold the tuft of fibres with a pair of tweezers.
2. Move the tuft close to the side of the flame; do not place the
3. Slowly move the
(a) When introduced to the flame, does the
(b) Does the material begin to melt?
(C) Does the material produce a sputtering flame, a steady flame, or no flame at all?
(d) When the
4. If the material is still burning when it is removed from the flame, blow out the flame. Note the odor and colour of the smoke, or note that no smoke was produced when the fibre was removed from the flame.
5. Observe the residue remaining after burning. Does a residue drop from the tweezers? Does that residue continue to burn? How much residue is left? Does the residue remain red, indicating that it is still very hot? What colour is the ash that remains? Is the ash the shape of the fibre, light and fluffy, or is it bead-shaped?
6. After it cools off, touch the residue or ash. Is it soft or brittle? Can it be crushed easily between the fingers, or is it hard to crush?
Fiber Burn Test Results
There are some points that are must to keep in mind to analyze the results of fiber burning procedures and the outcome –
1. It is difficult to detect the presence of blends with a burning test, One
2. Dyes and finishes affect test results. Flame retardant finishes are especially misleading.
Lets have a look on the image below. The results are inside of that –