It is produced from borosilicate glass, which is heated to around 1,400 C before being stretched into fibres.

The leaves have entire margins but disintegrate into fibres at the apex.

The textiles are shredded into "shoddy" fibres and blended with other selected fibres, depending on the intended end use of the recycled yarn.

Drafted slivers were opened into individual fibres by a rotating carding drum covered with saw tooth type wire clothing.

The jet of melt discharged from the pot is accelerated in a blowing or spinning process and pulled into fibres with different length/diameter ratios.

More intense retting separates the fibre bundles into elementary fibres, that can be several centimetres long.

The waste was cut into fibres 25-50mm long and then these were spun like worsted or cotton using a throstle.

The particles of slag present in the iron after preparation by puddling were drawn into long fibres during the forging or rolling process.

Step 3: The spinning solution is pumped into a cylindrical spinning cell where it is cured and converted into fibres.

Glass can also be drawn into fibres, as the Romans knew, and today production of glass-fibre is a large industry.