Polyester fiber production line

Production of polyester fiber - is quite complex multi-level process. The main raw material for fiber production is the primary and secondary granules of PET flex, obtained by recycling of PET bottles. PET melt at 280-320 ° C in the extruder, the performance of which reaches 1-15 kg / min. Fusion from one extruder is distributed according to the fineness of the threads  for 20-100 of extrusion dies (number of holes in the extrusion dies for spinning 100-2000, technical yarn-140-280, textile 8- 80, the hole diameter of extrusion dies 0.2-0.6 mm). Trickle of melt leaving the extrusion die, intensely cooled by air in a special shaft spinning machine and harden. Number of extrusion dies in a unit ranges from 1 to 16. In order to remove electrostatic charges, improve the sliding properties of the fiber it is treated with lubricant. Then it goes to the receiving device, the design and the speed of which depends on the type of product produced.

To put this production there are many specific requirements for premises, communications, location of raw materials and so on an individual project is created for each customer, given the demands, wishes and technical capabilities. The line capacity of 3-50 tonnes per year. It is equipped with machines and units, including a progressive and innovative technology. The line has a high level of automation, quality controlled by the computer systems of leading European countries.

PET products type:

1.  As per physical properties:  normal type, high tenacity fiber
2.  As per after treatment/process line?cotton type, wool fiber, fine denier.
3. As per application? garment use, filling material, decoration and industrial use.
4. As per function: cation dyed, moisture absorption, antiflaming, cloured, anti-pilling and anti-static fiber
5. As per fiber section : solid, hollow and abnormal shape fibe

Process Diagram

Raw material (Chips, bottle flakes or pop material etc. drying →extruder filtering→melt pipe spinning beam→ spinnerette queching   finishing take up and stretching feeding fiber can

Main specifications:

    2.1 End products titer 0.89 dtex ~16.67dtex
    2.2 spinning pitch 550mm~650mm
    2.3 diameter of spinnerete:Φ328mm
    2.4 spinning speed:
         mechanical speed    400~1500m/min
         process speed    500~1300m/min
    2.5 quenching type: inside –to-outside, outside – to- inside

Capacity

3.1 To use outside –to- inside quenching
  Say: 1.56dtex hole no. of spinnerette 3064
   speed: 1150m/min Annual working time: 8000h
   draft multiple:3.5, running efficiency of the line: 0.96

Inside – to – outside quenching

     Say: 1.56dtex, spinnerette holes no. 4984,
     spin speed: 1150m/min, working time: 8000h/a,
     draft multiple: 3.5,  running efficiency of the line: 0.96

The annual capacity of PSF line can be from 5000 t ~ 25000 t normal fiber and high tenacity. The annealer can be heated by steam or hot oil.


Technology process:

For hollow fiber

Creel upper godet frame lower godet frame godet machine oil-impregnated vat 1st draw stand bath drawing  box 2nd draw stand steam drawing box 3rd draw stand stacker tension frame steam preheating box crimper tow spreader godet frame finishing device draw-off & tension frame tow cutter piddler tensionless heat-setting dryer chain plate lifting system baler


For solid fiber
          
Creel upper godet frame lower godet frame godet machine oil-impregnated vat 1st draw stand bath drawing  box 2nd draw stand steam drawing box 3rd draw stand stacker tension frame steam preheating box crimper tow spreader tensionless heat-setting dryer draw-off & tension frame tow cutter chain plate lifting system baler

For high tenacity solid fiber
       
Creel upper godet frame lower godet frame godet machine oil-impregnated vat 1st draw stand bath drawing  box 2nd draw stand steam drawing box Annealer tow cooling device 3rd draw stand stacker tension frame→ steam preheating box crimper tow spreader tensionless heat-setting dryer draw-off & tension frame tow cutter chain plate lifting system baler