coating and converting 2009... · 2019. 3. 27. · human hair clothing fibre packaging fibre's...
TRANSCRIPT
Teknek“Just in Time” Cleaning
Improves yields in Converting
Human Hair
Clothing Fibre
Packaging Fibre's
Slitting Dust
Machinery debris, Bearings, Paint
Chips
Ink from printed stock.
Debris from metallizing
The Problem
Contaminants
Chemical Residue or outgassing
Viable Contamination ( Alive )
Non Viable Contamination
Type Of Contamination
The Risk factors
Number and size of particles
The rate of incidence of particles
The time a part is exposed after cleaning
None Viable Contamination
10
100
1,000
10,000
100,000
Part
icle
s/C
ub
ic f
t. e
qu
al
to o
r
gre
ate
r th
an
th
e s
tate
d s
ize
Particle Distribution curves Fig 1.
0.3 0.5 1.0 5 10 100
Particle size ( Microns )
Cleanroom
Maximum Number of Particles Maximum Number of Particles
0.5 micron and larger 5.0 micron and larger
per cu. ft per litre per cu. ft per litre
100 3.5 0 0
10000 350 6.5 2.3
100000 3500 700 25
Table 1
Table 2
Diameter of Particles Velocity of Settling
microns feet per minute
1 0.007
5 0.2
10 0.59
60 21.3
Settling Rates (Airborne Particles)
Cleanroom Classification
Particle Size
Wiping with Tack Rags
Wiping
STATIC BRUSH
Space due
to wearing
ROTARY BRUSH
Space due to wearing
Brush System
Vacuum System
Surrounding dirty air pulled in
Blowing System
Air System
Direction
of Web
Compressed Air and Vacuum System
Vacuum
Ultra Sonic Generators
Idle roller
Surrounding dirty air pulled in
Ultrasonic System
100 micron
Boundary Layer
Bernoulli effect
Daniel Bernoulli-18th century scientist who discovered :-
“as the velocity (speed)of a fluid increases its pressure
decreases”
Area of low pressureArea of low pressure
The Boundary Layer
Boundary Layer
Blue roller penetrates
Boundary Layer
d
No slip area
Solid Boundary
Air flow50/150mm
Free Air Stream
Air speed
Velocity
d
0
Idle Roller
Transfer Roller
Contact Cleaning
Blue roller penetrates
Boundary Layer
Blue roller penetrates
Boundary Layer
Idle Roller
Adhesive roll
Clean Surface presented
to the incoming Material
No repeater’s
Transfer of Contamination
Idle Roller
When full , one revolution
of the adhesive is removed
Adhesive removal
Direction of Web
Teknek Transfer Technology
Double Sided Cleaning
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
++++++++++++++++++++++++++++++++++
Static
elimination
Adhesive
roll
Cleaning
roller
Cleaning
method
Feature
Penetrate
Boundary Layer
Removal down to
1 micron
Analysis of
Contamination
Adapts to
Web Movement
Noisy
Large
Footprint
Ducting,
Filters
Simple
Installation
High
Maintenance Cost
Brush Ultra Sonic Contact RollerVacuumAir Blower
NO NO NONO YES
YES
YES
YES
YES
YESYESYESYES
YES
YESYESYESYES
YESYESYESYES
YESYESYES
NO NO NONO
NO NO NONO
NO NO NONO
NO
NO
NO
NO NO NONO
NO
v
Summary of Cleaning Techniques
100 75 50 30 25 10 5 1 0.5 0.2
Air Knife
Brush & Vac
High Velocity Vacuum
Ultrasonic
Contact Clean Machine
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Particle Size, Microns
Efficiency of Cleaning Methods
$
Cleaning efficiency's
Blown Extrusion with Slitting
Direction
of Film
Treatment &
Slitting Unit
Winding
Stations
Tower
Extruder
Reverse Roll Coating
Cleaning the Rubber
impression roller
Just in Time Cleaning Applications
Direct Slot Die system
Coating
Chill Rollers
Sequential Line for
Biaxially Oriented Films
( Plan View )
Direction of Web
XCH
Edge
Cleaning
XCH
Chill
Rollers Rewinder
Converting - Applications
Wide Web Converting - Product Range
XCH - Cleaning Head WWW - World’s Widest Web
Casting Film / Paper
( for reuse )
Coating Head
Applying Adhesive
Oven
Vinyl Coated
Casting Film
XCH Double Sided
XWCM
Transfer
Lamination
of Release
Liner
Finished Product
Direction
of web
XCH Double Sided
XWCM
XCH Double Sided
XWCM
XCH
XCH
Lamination Point
XCH
Direction
of web
Casting Film: Step 2
SLITTING
Coating & Lamination
Just in Time Cleaning Application’s
LAMINATING
Rewind
Slitting
Slitting
KnifesDirection of web
Converting - Applications
Wide Web Converting
XCH - Cleaning Head
XCH fitted to an unwind station
Slitting
Knifes
Rewinder Rewinder
Direction of web
Slitting
Web Treatment Centre
Unwind
Splice table
Edge trim and Centre slit
Contact Cleaning
Corona Treating
Rewind
Blister Packaging
Direction of Web
Laminating
Point
Filling
Improved Yields
Faster Production
Higher Quality
Less Rework
Analysis and cure of root problem
Insurance
No Filth
Conclusion
Why Clean Webs