Para-aramid staple fiber, aramid spun yarn and manufacturing method threof

A method for producing an aramid spun yarn, comprising applying a para-aramid staple fiber to a ring spinning process to produce an aramid spun yarn having a Ne16 to Ne30 single yarn and a twist multiplier (TM) in the range of 2.0 to 4.0,

• wherein the ring spinning process includes a carding process at a speed of 30 kg/hr or more,
• wherein the ring spinning process comprises applying the para-aramid staple fiber to carding, drawing, roving, and spinning processes,
• wherein the carding process is carried out under the conditions where the density of a card clothing of a fixed carding bar in a carding machine is applied at 200 to 700 PPSI for a doffer upper end and 10 to 400 PPSI for a licker-in upper end, and a cylinder speed is applied at 200 to 500 rpm, and
• wherein the para-aramid staple fiber has an elongation of 4.1% to 6% and a strength of 15 to 24 g/d.