about Modified PBT sweater Dty high stretch yarn.
u can use this yarn directly with viscose or acrylic when making sweater.
it's elasticity is better than nylon. it can replace nylon.
it's slightly intermingled.
about 40D/2ply .
it's 40D/24f S twist + 40D/24f Z twist= 75-80d
70D/48F S twist + 70D/48f Z twist=140D
it is cone, pls check the pic.
and we produce dope dyed, dont need dyeing.
now we have black 40D/2ply sample
it's deep black, and our client use this yarn now.