Dewatering and compacting machine

1. Welcome to my
Presentation
Topic Name :Dewatering and
compacting machine

2. Submitted By:-
Md.Ibrahim Khalil
Intake:19
Department of Textile Engineering
Bangladesh University Of Business & Technology

3. Dewatering Machine:
In knit fabric finishing process; de-watering machine is used in
case of tube or open form fabric after dyeing. In case of piece
goods fabric hydro-extractor machine is used for water
removing. During de-watering process additional chemical is
used for soften the fabric. Different types of operational
parameter are controlled during de-watering process.

4. Dewatering machine Figure

5. Objectives of Dewatering Machine:
1.Fabric is open from the rope form.
2.Width-wise stretch of the fabric is done.
3.Fabric is turn into plait form by this process.
4.GSM of the fabric is controlled during de-watering.
5.To control the crease mark of the fabric.
6.Excess or remaining water is removed or reduce by the de-watering machine.
7.In most of the cases, softener is applying during de-watering process.
8.Apply overfeed to give some compactor.

6. Working Principle of Dewatering
Machine:
• After completing the dyeing process from the dyeing m/c then the
fabrics are ready for de-watering. In de-watering m/c tubular fabrics
are mainly processed. There is a magnetic sensor which scene the
twist of the fabric and its direction and turn the fabric in opposite
direction to remove twist automatically. Here dewatering is
performed De-watering is the process to remove the water from the
fabric completely by squeezing and it is done by the padder. A
suitable expander is used before the fabric is passed through the
nip of the padders, which expands the fabric flat wise and adjust the
width.

7. Figure:Passage diagram of Dewareting
machine

8. Compactor Machine
• Compactor is a textile finishing machine which is designed
specially for compacting 100% cotton knitted fabric like jersey,
pique, interlock, plush, rib and sinker etc. as well as cotton
blended fabric in rope form, changing the loft and dimensional
stability of the fabric and presenting it to plaited form. Fitted
with two felt compacting units which makes it to obtain top
quality fabric, with minimized shrinking nature and a soft fluffy
hand.

9. Compactor Machine Figure

10. Function of Compactor Machine:
• 1. GSM control of the knitted fabric. For high GSM, overfeed is
increased and fabric width is decreased. For low GSM,
overfeed is decreased and fabric width is increased.
2. Control shrinkage
3. Twisting control
4. Increase smoothness of fabric
5. Heat setting is done of fabric etc.

11. Checking parameters of compactor
machine:
1.Shade Check: Shade of the compacting fabric is checked in
the delivery side of the machine. The operator collects the
fabric and compare the shade of the fabric with the buyer’s
approved swatch.
2.Width Check: Operator measures the width of the fabric with
the measuring tape and compares it with the buyer’s
requirement.
3.Weight Check: Weight of the fabric is determined by GSM
check. Operator checks the GSM of the fabric by GSM cutter
and electric balance.

12. Checking parameters of compactor
machine:
• Edge Line Checking: Two edges of the fabric is check in
delivery side. If any fix line is identified, which normally
occurs from the expander it should be connected.
• Design and Slanting: Operator checks design and slanting
of the fabric in the delivery side of the machine.
• Fabric Faults: Various types of fabric quality are measured
in the delivery side of the fabric.

13. Types of Compactor Machine:
Two types of compactor machine, they
are
1.Tubular compactor
2.Open compactor

14. Tubular Compactor:
• Tubular compactor is used after hydro-
extractor, de-watering and dryer. By the
compactor machine, compacting is done
for control the shrinkage of the fabric.
Here, different types of off line quality of
the fabric are measured.

15. Functions of Tubular Compactor:
1.Shrinkage of the fabric is controlled by the compactor.
2.Fabric width is controlled by the compactor.
3.GSM of the fabric is adjusted by the compacting.
4.Fabric smoothness is achieved by the compactor.
5.Heat setting of fabric for Lycra is done by tubular
compactor.

16. Working Procedure of Tubular
Compactor:
• The treatment of knit fabrics in tubular form on the Tubular
compactor meets the exacting standards set by customers so
that garment stitched from the fabric finished on this machine
will yield the lowest residual shrinkage values.
1. Width control through a stepless adjustable special tubular
fabric spreader driven by variable speed motor for distortion-
free fabric guidance.

17. Working Procedure of Tubular Compactor
• 2. Steamping with a condensate-free steam box which is easily
operated and completely made from stainless stell.
3. Compacting through two Nomex felt belts.
4. Calendaring while passing between the felt belt and the
heated shrinking rollers.

18. Working Procedure of Tubular Compactor
• 5Precision plaiting with automatic platform level adjustment
controlled by folded fabric height. Alternatively, a fabric rolling
system can be provided.
The fabric is fed through the guiding system and stretcher
which then takes the fabric through the steam box onto the felt
of the twin compacting units..

19. Working Procedure of Tubular
Compactor:
• Eliminate over- and under-weight fabric.
• Reduce or eliminate punch-weight measurements.
• Provide consistent results from all operators.
• Result in uniform fabric, seam-to-seam.
• Yield predictable residual shrinkage.

20. Specification of Tubular Compactor
Machine
Brand name Ferraro
Model no. Comptex/Fv200
Manufacturing country Italy
Speed range 13-22 m/min
Temperature 110-140C
Used utilities Electricity,Compress air,Steam
Production capacity 4 ton/day
Maximum width 86”
Minimum width 36”
Applied for Open width

21. Open Width Compactor:
• Open compactor is used for compacting the open form fabric.
Here, slitting machine is used for open the fabric from the
tubular form

22. Feature of Open Width Compactor:
1.Ideally suitable for in-line with stenter machines.
2.Effective shrinkage control
3.A.C. Inverter drives, PLC with touch screen used.
4.Equipped with modem connectivity and online troubleshooting
system.
5.Metal detector.

23. Specification of Open Width Compactor
Machine:
Brand name Ferraro
Model no. Comptex/Fv200
Manufacturing country Italy
Speed range 13-22 m/min
Temperature 110-140C
Used utilities Electricity, Compress air, Steam
Production capacity 4 ton/day
Maximum width 86”
Minimum width 36”
Applied for Open width

24. Thank you