2. ΔL Δa Δ
Rate replication from the mold surface (%)
Rev.: A
GLOSS RESULTS (ISO 2813 Standard)
T=90°C - Conventional - WITHOUT 103,1 GU 104,3 GUT=140°C - Roctool - WITH
TRADE NAME
0,24
21/08/2017 TRIAL # HDP-17-013 MOLD HD PLAQUE
MATERIAL
FAMILY PC
FORM
FOR-TEC-111
Page 1 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
LEXAN™ GRADE HF 1110R
DATE
DELTACOLOR SCALE
L* ( Lightness)
MEASUREMENTS
PROCESS TECHNOLOGY
0,03
T=140°C - Roctool - WITH
SUPPLIER SABIC
0,29
ΔE
COLOR
DIFFERENCE
LAB - COLOR DEPHT RESULTS (DIN 5033 Standard)
-0,16
T=90°C - Conventional - WITHOUT
81,19 -1,53 1,51
81,43
a*
-1,5
b*
1,35
20300
43% 81%
88%
Volume cavity (µm3
)
Note: L* = 0 yields black and L* = 100 indicates diffuse white. a*: negative values indicate green while positive values indicate red. b*: negative values indicate blue and positive values
indicate yellow.
Roughness profile - Conventional VS Roctool Technology
T=140°C - Roctool - WITHT=90°C - Conventional - WITHOUT
PICTURES OF INJECTED SAMPLES
3D TEXTURATION RESULTS
T=90°C - Conventional - WITHOUT T=140°C - Roctool - WITH
Conventional (µm3
) Roctool technology (µm3) Improvement (%)Roughness parameters
10800
C
C
3. CIM H&C CIM H&C CIM H&C
0,79 0,86 1,25 1,36 2,56 2,78
0,43 0,66 0,64 0,76 1,37 1,44
0,67 0,87 0,82 0,97 1,53 2,01
COMMENTS
Sa (µm)
VDI 18 (Ra=±0.80 µm)
%
Quality surface characterization:
1) Visible improvements using Roctool technology are observed: weld line and sink marks are removed.
2) No significant improvement on the gloss value. However, we measured an impact of the mold temperature on the color perception and Roctool
technology allows a brighter color with a perfect surface finish compared to conventional process.
3) The different textured areas hightlight the positive impact on the replication using Roctool technology.
Also, the different roughness are well felt when touched. The roughness measurements carrie out using optical rugosimeter confirms above with a
repliction rate up to 81% : improvement of 88% with Roctool compared to conventional technology (CIM).
Note: CIM: Conventional Injection Molding. H&C: Heat and cool (Roctool)
FORM
FOR-TEC-111 Rev.: A
Page 2 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
%
VDI 27 (Ra=±2.20 µm)
9%9%
VDI 22 (Ra=±1.26 µm)
%
9%
Sa (µm)
Sa (µm)
LASER
5%
31%
53%
30% 18%
19%EDM
CHEMICAL
TEXTURE RESULTS - Ra (Amplitude roughnes parameter)
4. MEASUREMENT AREAS
1) The high gloss area framed in blue is the measurement area for the gloss,
color and specific roughness Rz* .
2) The red rectangle define the nano-replication area.
3) The green frame correspond to the multi-textured (VDI) area were the
roughness is measured.
*Rz: Maximal amplitude roughness mesured for filled materials
ROUGHNESS MEASUREMENT PRINCIPLE
Optical rugosimeter is a measuring instrument used to measure a surface's
profile, in order to quantify its roughness.
In the context of HD Plastics™, two information are carried out using
Alicona equipment according to the standard ISO 4287:
- Replication rate : volume of the specific texture defined versus the one
textured on the mold surface quavity
- The surface roughness parameters : Arithmetical mean deviation (Ra)
which evaluate the roughness amplitude on a profile and Mean roughness
depth (Rz) which measure the maximal amplitude roughness average of the
profile.
GLOSS PRINCIPLE
FORM
FOR-TEC-111 Rev.: A
Page 3 of 3
QUALITY SURFACE CHARACTERIZATION REPORT
ANNEXES
LAB COLOR PRINCIPLE
The Lab color space describes all perceivable colors in the three dimensions
L for lightness and a and for the olor opponents green–red and
lue– ello .
In the context of HD Plastics™, a spectrophotometer is used to carried out
the LAB alue : spe tro-guide / gloss BYK . HD Plasti s™ is follo ing the
DIN 5033 Standard.
The graph shows the LAB color scale. The lightness, L*, represents the
darkest black at L* = 0, and the brightest white at L* = 100. The a* and b*
value represent the color channels. a*: negative values indicate green while
positive values indicate red. b*: negative values indicate blue and positive
values indicate yellow
Gloss is an optical property which indicates how well a surface reflects light
in a specular direction. It is one of important parameters that are used to
describe the visual appearance of an object. The factors that affect gloss are
the refractive index of the material, the angle of incident light and the
surface topography.
In the onte t of HD Plasti s™, a glossmeter is used to carried out the gloss
value with a incident angle of 60° : spectro-guide 45/0 gloss (BYK). HD
Plasti s™ is follo ing the ISO 8 Standard.
The graph shows the gloss scale using glossmeter following 60° angle in the
gloss unit. Low Gloss corresponds to a textured surface, Semi Gloss and High
Gloss to high polished surface.
White
L* = 100
Black
L* = 0
5. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
316 34 655,83 177,83 1000,5 376 478,5 271 905,67 540,33 1279 777,3
FORM
FOR-TEC-101 Rev.: A
Page 1 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
TRADE NAME GRADE HF1110R
PICTURES OF INJECTED SAMPLES
TRIAL # HDP-17-013 MOLD Spiral 1 mm
MATERIAL
FAMILY
03/08/2017DATE
180°C 95,0% 99,8% 92,1% 180°C - 68,0% - 80,0% _
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE IMM PRESSURE DROP AT ISO FLOW LENGTH
SUPPLIER
15
SABIC
32,1% 140°C
500 1000 1500 Flow Length (cm) 5 10
Flow length improvement IMM Pressure improvement
T=80°C - Conventional - WITHOUT (1000 Bar)
PC
Pressure (Bar)
T=180°C - RocTool - WITH (1000 Bar)
160°C
140°C 14,8% 32,1% -40,0% -40,0% _
49,0% 64,4% 68,0% 160°C -50,0% -60,0% _
Mold Pressure Avg
Pressure Drop (%)
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
CONVENTIONAL TECHNOLOGY (80°C) ROCTOOL TECHNOLOGY (180°C)
Pressure (Bar) 500 1000 1500 500 1000 1500
89,24% 72,88% 62,42% 43,36% 40,34% 39,22%
Sensors
Sensor 1
Sensor 2
Sensor 1
Sensor 2
6. Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2 Sensor 1 Sensor 2
411,17 192,5 823 481,33 1208,3 767,5 491,67 338,83 938,83 654,5 1333,5 947,33
500 1000
53,18% 41,51% 36,48% 31,08%
FLOW LENGTH MEASUREMENT AT DIFFERENT IMM PRESSURE
FORM
T=180°C - RocTool - WITH (1000 Bar)
MATERIAL
FAMILY PC SABIC
TRADE NAME GRADE HF1110R
FOR-TEC-101 Rev.: A
Page 2 of 3
FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 03/08/2017
140°C -44,3% -44,2%
Pressure (Bar)
PICTURES OF INJECTED SAMPLES
32,6% 160°C
140°C
HDP-17-013 MOLD Spiral 1.5 mm
SUPPLIER
TRIAL #
PRESSURE DROP BETWEEN THE TWO PRESSURE SENSORS
-60,0%
20
-50,8% -49,0%
- 61,0%180°C 62,4% 54,9% 47,5% 180°C
39,9%44,2%160°C
- 65,7% - 61,5%
28,96%Pressure Drop (%)
Mold Pressure Avg
30,29%
Sensors
Pressure (Bar) 500 1000 1500
10
T=80°C - Conventional - WITHOUT (1000 Bar)
1500
ROCTOOL TECHNOLOGY (180°C)CONVENTIONAL TECHNOLOGY (80°C)
IMM PRESSURE DROP AT ISO FLOW LENGTH
29,8% 31,6%
1500
ROCTOOL TECHNOLOGY IMPROVEMENT VERSUS CONVENTIONAL TECHNOLOGY
Flow length improvement IMM Pressure improvement
25
-6,8%
500 1000 Flow Length (cm)
30,9%
Sensor 1
Sensor 2
Sensor 1
Sensor
7. FLOW AND PRESSURE STUDY REPORT- SPIRAL MOLD
DATE 03/08/2017 TRIAL # HDP-17-013 MOLD Spiral
FORM
FOR-TEC-101
Flow Length improvement vs Injection Pressure in function of Mold Temperature/Mold Thickness
MATERIAL
FAMILY PC SUPPLIER SABIC
TRADE NAME GRADE HF1110R
Rev.: A
Page 3 of 3
Note : All the injection trials and the pressure measurements were carried out according to the protocol defined by RocTool (injection process, 2 heating sides,
cold sprue, mold design).
All pressure data are measured using eDart system (RJG).
Pressure Drop between the 2 Sensors vs Mold Thickness at Injection
Pressure = 1000 Bars
Results Evaluations
The graph above shows a flow length for the two thicknesses
at two temperature (80°C and 180°C). By comparing these
curves, a significant reduction in thickness an be observed.
Also, the following diagram shows the pressure drop
measured between the two sensors for the two thicknesses at
1000 bars of injection pressure. The reduction of pressure
drop in the cavity is important up to 45%.
GLOBAL COMMENTS & RECOMMENDATIONS
temperature is 180°C regarding to the trials performed with this material. We obtain the longest flow with an important
reduction of the pressure drop compared to the conventional mold temperature.
