It combines the good performance characteristics of the fibres and reduces the effect of the less desirable ones.
The cost of the fibre could be less than using just one fibre.
To make them easier to be made into a fabric.
To help them stick together better.
Weft knitting machine
Circular knitting machine
Fray at cut edges
Are firm and do not stretch much.
Are made from loops and one interlocking yarn.
Are strong along the grain of the fabric.
Make different weaves such as plain, twill or satin.
Are made on a loom.
Have a loop structure which traps air making it a good insulator (warm).
Often curl at the edges making them difficult to work with.
Made from interlocking yarn which can ladder and unravel if a thread breaks.
Made from yarn.
Not as strong as woven or knitted fabrics. Easy to tear.
Do not stretch or give.
Are economical (cheap) to make and use.
Can be felts or bonded webs.
Beret (french type hat)