In knit fabric finishing process; de-watering machine is used after passing the hydro-extractor machine. After hydro-extracting of the fabric, remaining water is removed by the de-watering process. During de-watering process additional chemical is used for soften the fabric. Different types of operational parameter are controlled during de-watering process.
Objectives of De-Watering Machine: Various types of objectives are achieved by the de-watering process. Followings are the main objectives of the de-watering machine.
- Excess or remaining water is removed or reduce by the de-watering machine.
- In most of the cases, softener is applying during de-watering process.
- Apply overfeed to give some compactor.
- Fabric is open from the rope form.
- Width-wise stretch of the fabric is done.
- Fabric is turn into plait form by this process.
- GSM of the fabric is controlled during de-watering.
- To control the crease mark of the fabric.
Operational Parameter of De-Watering Machine: Following parameter is controlled during de-watering.
- Speed: As much as possible (40-60 m/min). Higher the GSM lower the speed.
- Over feed: As required. Higher the GSM higher the over feed.
- Padder pressure: 3-7 bar as required. Higher the GSM lower the padder pressure.
- Width: Fabric width is adjusted as per required width.
- Stretch: 8 to 12% minimum than the requirement of customer.
De-Watering Machine: Here, I have present two de-watering machine brand with its profile.
Brand name : Weiss
Origin : Western Germany
Pressure : 50 psi
Speed : (60-70) m/min
Another,
Brand name : Bianco
Origin : Italy
Pressure : 50 psi
Speed : (60-70) m/min
Another, famous brand is CALATOR BORAS, origin country is Sweden.
So, de-watering machine has a great impact in knit fabric finishing process.
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