Staple or spun yarn is made from fibers that are short in length. Staple fibers must be spun or twisted together to make a long continuous strand of yarn. Staple yarns can contain a single type of fiber or can be blended with various types of fibers- most commonly synthetic
STAPLE SPINNING
| RING SPINNING | OPEN END FRICTION SPINNING | OPEN END ROTOR SPINNING | AIR JET SPINNING |
|---|---|---|---|
| Oldest spinning method. | 1970s and early 1980s | 1970s and early 1980s | Early 1980s |
| Silvers are drafted into roving and twisted into yarns before being wound onto the bobbing. | *Spun from silvers using spinning rotor with withdrawal system to create false twisted yarns. | ←* | ←* |
| Results in strong yarn. | *Results in weak yarn | ←* | ←* |
| Finest yarn. | *Less well alight yarn | ←* | ←* |
| Large range of yarn count. | *Small range of yarn count | ←* | ←* |
| Suitable for all staple fibers. | *Not suitable for manmade fibers, except rayon | ←* | Commonly used for producing polyester |
| Slowest production rate. | *Faster production rate than ring spinning | ←* | Fastest production rate (20 times faster than ring spinning) |
| More steps required. | *Fewer steps needed | ←* | ←* |
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