What dew point is required for polyester melt spinning?
how the spinpack pressure is calculated?

how the spinnerate L/D selected according to denier and filament? like 34 filament,48 filament,72 and 108 filament.
deniers like 51/14,50/14,126/34,160/34,140/36,250/36,300/36,520/72,520/96

what should be spinpackpressure before and after pack?

how melt pump capacity selection is done according to denier?

how to reduce breakages in poy line?

what is step precesion winding,rfr winding and helix angle winding?

what is amplitude, overfeed and cycles/min in sw-4 winder?
difference between volumatric dossing and gravimatric dossing?

what should be contact force of winder? theory


kindly provide answers of above questions.

thanking you,

nayan desai.