Polyester Staple Fiber Production Line History
Process flow of polyester spinning line from bottle flakes or chips
Polyester bottle flakes or chips – Heated and dried-hopper-Screw extruder –Melt filter – Spinning beam –Metering pump-Spinning packs –Quenching system-Spinning tunnel- Take-up machine – Capstan – Traverse machine (fiber cans)
Process Flow of Polyester After-treatment Line (Toyobo process route)
Creel – Prefeed Module (5 rollers + 1 immersion roller) – Immersion Bath – Immersion Roller – Draw Stand 1 ( 5 rollers + 1 immersion roller) – Draw Bath – Draw Stand 2 (5 rollers + 1 immersion roller) – Steam Heating Box – Draw Stand 3 (12 rollers) – Annealer (5 rollers) – Oiling Stacker – (Trio – Tension Roller) – Pre-crimper Heating Box – Crimper – Cooling Conveyor (or Tow Plaiter – Dryer) – Oil Sprayer – Tension Stand – Cutter – Baler
Process Flow of Polyester After-treatment Line (Fleissner process route)
Creel – Prefeed Module (7 rollers) – Immersion Bath – Draw Stand 1 ( 7 rollers ) – Draw Bath – Draw Stand 2 (7 rollers) – Steam Heating Box – Annealer (18 jacket rollers) – Cooling Sprayer – Draw Stand 3 (7 rollers) – Tow Stacker — Trio – Tension Roller – Pre-crimper Heating Box – Crimper — Tow Plaiter – Dryer – Tension Stand – Cutter – Baler
Fiber Index (For Reference)
| No. | Items | Solid Fiber | Mid Fiber | Wool Type | |||||||||||||
| High-Tenacity | Normal | ||||||||||||||||
| Best | Grade A | Qualified | Best | Grade A | Qualified | Best | Grade A | Qualified | Best | Grade A | Qualified | ||||||
| 8 | Number of crimp /(pc/25mm) | M2±2.5 | M2±3.5 | M2±2.5 | M2±3.5 | M2±2.5 | M2±3.5 | M2±2.5 | M2±3.5 | ||||||||
| 9 | Crimp ratio/% | M3±2.5 | M3±3.5 | M3±2.5 | M3±3.5 | M3±2.5 | M3±3.5 | M3±2.5 | M3±3.5 | ||||||||
| 10 | Shrinkage at 180℃ | M4±2.0 | M4±3.0 | M4±2.0 | M4±3.0 | M4±2.0 | M4±3.0 | M4±2.0 | M4±3.0 | ||||||||
| 11 | Specific resistance /Ω*cm ≤ | M5×108 | M5×109 | M5×108 | M5×109 | M5×108 | M5×109 | M5×108 | M5×109 | ||||||||
| 12 | 10% enlongation / (CN/dtex) ≥ | 2.8 | 2.4 | 2 | —— | —— | —— | —— | —— | —— | —— | —— | —— | ||||
| 13 | Variation of break strength /≤ | 10 | 15 | 10 | —— | —— | 13 | —— | —— | —— | —— | —— | |||||