Beyond the pollution and dust particles that are visible to us in the sky, haze is an important optical property to be considered. Haze is measured as the percentage of incident light scattered by more than 2.5° through the transparent materials.
Haze meter is an instrument used to measure the haze value, light-transmitting and light scattering characteristics of transparent materials.
The lower the haze value, the higher the clarity.
There are many factors that cause light scattering such as:
Haze meters are most commonly used in packaging Industry such as plastics and packaging films. It can also be used in other industries such as glass, beverages, pharmaceuticals (liquid), photovoltaic modules and cosmetics.
Generally, the haze meter is used in quality assurance (QA) applications, according to ASTM D1003, CIE C – which is the most significant standard used.
The appropriate haze levels are dependent on the use case and material of your product. Here are some haze percentage values that you may consider.
| Polymer Name | Min Value (%) | Max Value (%) |
|---|---|---|
|
Amorphous TPI, Moderate Heat, Transparent |
2.00 |
2.00 |
|
Amorphous TPI, Moderate Heat, Transparent (Food Contact Approved) |
2.00 |
2.00 |
|
Amorphous TPI, Moderate Heat, Transparent (Powder form) |
2.00 |
2.00 |
|
Celllulose Diacetate-Gloss Film |
0.70 |
0.70 |
|
Celllulose Diacetate-Integuard Films |
0.00 |
4.00 |
|
Celllulose Diacetate-Matt Film |
72.00 |
72.00 |
|
Cellulose Diacetate-Window Patch Film (Food Grade) |
1.10 |
1.10 |
|
Cellulose Diacetate-Colored Films |
2.10 |
2.10 |
|
Cellulose Diacetate-High Slip Film |
0.70 |
0.70 |
|
Cellulose Diacetate-Semitone Films |
63.00 |
63.00 |
|
ECTFE – Ethylene Chlorotrifluoroethylene |
4.00 |
4.00 |
|
5.10 |
5.10 |
|
|
0.50 |
1.90 |
|
|
6.00 |
6.00 |
|
|
4.00 |
27.00 |
|
|
1.30 |
27.50 |
|
|
0.80 |
28.00 |
|
|
1.00 |
1.00 |
|
|
0.30 |
0.60 |
|
|
4.00 |
4.00 |
|
|
PLA, Heat Seal Layer |
2.00 |
2.00 |
|
PLA, High Heat Films |
2.00 |
2.20 |
|
1.00 |
96.00 |
|
|
PMMA (Acrylic) High Heat |
2.00 |
2.00 |
|
1.50 |
7.20 |
|
|
2.00 |
2.00 |
|
|
11.00 |
11.00 |
|
|
PS (Polystyrene) Crystal |
2.00 |
2.00 |
|
PS, High Heat |
1.00 |
1.00 |
|
3.00 |
5.00 |
|
|
0.45 |
0.80 |
|
|
0.27 |
0.30 |
Source: Omnexus Special Chem
The best way to ensure the appropriate haze level and corresponding haze meter for use is to consult our team of professionals. Write into sales@maha.asia or contact us at (65) 6863 1808 today!
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