rich products meeting #1 february 26, 2014
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04/10/2023
February, 2014
How Does IQF film begin?
IQF film begins as LDPE/LLDPE plastic resin pellets
Film Fabrication Extruder
Extruder
The function of an extruder is to melt the polymer, mix the polymer and other additives, and deliver a homogeneous melt at uniform pressure and output to the die by the application of heat and shear.
VII-6b
Screw
Hopper
Safety Shroud
Feed ThroatCast Heaters
Stockscrew
Cylinder
Pressure Gauge
Cylinder Support
Cooling WaterInlet Manifold
Powder SealMachine Base
Rotary Joint Gearcase
Thrust Bearing Assembly
VII-7b
Film Fabrication Blown Film Process
1
2
3
4
VII-4b
Polymer orientation during film fabrication
61”
1”
2.6”
8.5”
0.055”
0.0025”
Front View Side View
Polymer exits the die and is in a relaxed state
Before the polymer cools, the polymer chains are stretched 2.6 times in the cross direction and 8.5 times in the machine direction. The thickness is reduced 22 times. This orientation or stress is frozen into the film.
BUR=bubble diameter / die diameter
Determination of BUR and Layflat
Draw Down Ratio (DDR) = Die Gap Gauge
W & H Technology Will Be A Catalyst To Our Success
Heat Seal of m-VLDPEFigure 17: Coextruded Blown Films - Hot Tack Performance
0
2
4
6
8
10
12
80 90 100 110 120 130
Temperature (C)
Pea
k H
ot T
ack
Str
engt
h (
N/1
5mm
)
mVLDPE
mLLDPE
EVA-1
EVA-2
Figure 18: Coextruded Blown Films - Heat Seal Performance
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
85 90 95 100 105 110 115 120 125 130 135
Temperature (C)
Hea
t S
eal
Str
engt
h (
lbs/
in)
mVLDPE
mLLDPE
EVA-1
EVA-2
EVA D-1630
200
400
600
800
1000
1200
Drop Dart Impact of EVA vs. m-VLDPE
F-50 Grams
F-50 Drop Dart Impact - Mono vs. IQF-2 ( Normalized @ 3.0 mil )
SFE UP- 834
GMS
0
100
200
300
400
500
600
700
800
900
IQF-2
879
387
04/10/2023
Rich Foods Film Properties Comparison
February, 2014
MD Tensile Strength - psi
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
Rich ControlIQF-2
TD Tensile Strength-psi
3,100
3,200
3,300
3,400
3,500
3,600
3,700
3,800
3,900
4,000
IQF-2 Rich Control
Elongation At Break-%
0
100
200
300
400
500
600
700
800
900
Rich Con-trol
IQF-2
Secant Modulus or Stiffness-psi
29,000
30,000
31,000
32,000
33,000
34,000
35,000
IQF-2 Rich Control
Puncture Strength- lbs
0
1
2
3
Rich ControlIQF-2
Optical Clarity-%
0
10
20
30
40
50
60
70
80
IQF-2 Rich Control
04/10/2023
Rich ProductsLaminations Properties Comparison
February, 2014
H2O/Water Transmission Rate -gms/100sq.in./24 hr
0.305
0.31
0.315
0.32
0.325
0.33
Rich ControlCM
O2/Air Transmission Rate- cc/100sq.in./24 hr
7.4
7.6
7.8
8
8.2
8.4
8.6
8.8
9
CM Rich Con-trol
MD Tensile Strength-psi
0
5
10
15
20
25
30
35
CMRich Control
TD Tensile Strength-psi
34.5
35
35.5
36
36.5
37
37.5
38
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