3. MALAYSIAN NEWSPRINT
INDUSTRIES
Former
• Forms the paper web and starts the
water removal process.
• Headbox:
– Creates a Jet of stock
• 8 mm thick X 9000 mm
wide.
• Jet velocity is precisely
controlled.
• Very uniform.
• Control of basis weight
5. MALAYSIAN NEWSPRINT
INDUSTRIES
Press Section
• Increase web dryness by pressing out
the water out
– The Web enters the press at 17 % solids
and leaves at 43% solids
– The sheet is press 4 times with increasing
pressure
• 1st Nip 70 kN/m
• 2nd Nip 90 kN/m
• 3rd Nip 130 kN/m
• 4th Nip 150 kN/m.
8. MALAYSIAN NEWSPRINT
INDUSTRIES
•The top roll is covered with hard
rubber
Calander Section
•The sheet from the dryers
is too rough and needs
smoothing in a process
called Soft Nip Calandering
•The paper is compressed between
two rolls under high pressure.
•The bottom roll is Steel
•CD caliper control by heating
different zones
9. MALAYSIAN NEWSPRINT
INDUSTRIES
Winder Section
• The Winder converts a parent reel to
individual customer sized rolls.
• Parent Reel is
unwound from
Backstand.
• The sheet is slit in
customer width by
slitter blades
• The individual
customer rolls are
wound on paper
cores on alternative
sides of the center
drum
10. MALAYSIAN NEWSPRINT
INDUSTRIES
Efficiency Aids
• Break Camera System
– Automatically records last 20 seconds before a
break.
– Used to determine where and why the break
occurred.
• Online Vibration Monitoring
– Continuously monitors the conditions of bearing,
clothing etc.
– Allows maintenance to be planned before failure.
• Hole Scanner
– Scans every square inch for defects like holes
light spots etc.
11. MALAYSIAN NEWSPRINT
INDUSTRIES
Quality Testing
• Paper Testing
– Valmet
PaperLab.
– Test Every
Parent Reel.
– Wide range of
tests including:
• Tear
• Tensile .
• Fibre
Orientation
• Brightness
12. MALAYSIAN NEWSPRINT
INDUSTRIES
PM Summary
• Reached nameplate capacity of 250,00
tpa:
• Target is to increase to 280,000 tpa
– Increase Speed
– Increase Efficiency
• Sheet Quality is world class
– Dilution Head box
– Winder.
