Corona Treater For Extrusion Coating Plant, Mumbai, India

CORONA TREATMENT FOR EXTRUSION COATING PLANT

Corona treater on blown film or cast film extrusion lines is essential in order to obtain a perfect surface tension prior to the following converting process. Without pretreatment the extruded substrates will not allow further converting processes due to low surface tension.

Corona treatment is required on Extrusion coating/Lamination plant For better adhesion of a thin layer of polyolefin's (Mainly LDPE / PP) on substrates like Paper, Cotton Cloth, Woven fabrics, Jute fabric, Aluminum foil, BOPP film, Polyester film, etc. Paper, Cotton Cloth, Woven fabrics, Jute fabric, Aluminum foil, BOPP film, Polyester film, etc has to be corona treated before coating to achieve better bonding.

Corona treatment system is a very effective way to increase the surface tension of virtually any material. The surface treatment is required for woven fabrics whose normal surface tension is not sufficiently high to permit good wetting, corona treatment increases bonding. Corona treaters increase the surface energy of films, foils, and paper to improve wettability and adhesion of inks, coatings, and adhesives. Film extruders use corona treaters to increase a film's surface energy at the time of extrusion. This pretreatment process enables the film to be later converted by printers, coaters & laminators.

Corona Treatment For Extrusion Coating Plant

Corona Treater for Extrusion Coating Plant

Corona Treater Panel

HV Transformer

Corona Treater Panel

TECHNICAL SPECIFICATION

Input supply	415 V AC , ± 5 % , 3 Phase,4 -Wire
Treatment Size	600-1000 mm
Line Speed	60-120 mtr/minute
Material	PP/HDPE/LAMINATED FABRIC
Treating Sides	Both Side
Input Frequency	50 Hz
Output Frequency	20-50 KHZ
Approx Output Power ( Kw )	3 KW
Maximum Temperature	0 ~ 50 Degree celsius
Blower	3 H.P
Treatment Electrode	Multisegmented
Dynes Level	38-42 Dynes/cm
Length Of Hv Cable	2.5 Mtr
Inverter
Corona Output	Constant at same speed No influence of supply voltage Accurate output power Ultra high frequency using latest IGBT technology
Certifications	CE , RoHs , ISO

FEATURES
- • Advanced IGBT Technology.
- • Aluminium Split box type station assembly for light weight and low corrosion.
- • Pnuematic operated treatment station.
- • Ozone extraction system efficiently removes ozone and to cool the electrodes. This reduces warping of electrode and provides more consistent treatment.
- • In order to protect the treater rolls, a zero speed cut-off system automatically shuts down the power supply when the web achieves low line speeds.
- • Easy to install.
- • Cost efficient treatment process.
- • Easy to maintain.
- • Easy to Operate Push Buttons for Start/Stop
- • Customized Design.
- • Air gap adjustment: two external adjustment screws at both ends of the electrodes.
ELECTRONIC PROTECTION FEATURES
- • Overload Trip
- • Thermal trip for heatsink
- • MCB protection
- • Under voltage / Over voltage
- • Ozone extraction overload trip
- • Single Phasing
- • Door open
- • Audio / visual alarm
BENEFITS
- • Ultra high frequency using latest IGBT technology
- • Compact simple contruction
- • Soft start
- • Maximum Operator safety
- • Forced cooled convertor for longer life
VIDEO
APPLICATIONS
- • Blown film extrusion single and multilayer for plastic film plants
- • Woven sack roll on- line Flexo printing machine.
- • Extrusion and lamination coating plant for paper industry
- • Sheet line plant
- • Plastic moulded articles
- • Woven sack roll on line flexo printing machine
- • Gum coating on PTFE coat fibre glass cloth
- • PVDC coating on PVC film for pharmaceutical applications