The electronic market is currently proceeding with a deep revolution since the smartphones and other high-end finish devices boom. The level of quality required is now far more beyond conventional article that flooded the consumer market in the past as these products have become day-to-day fashionable objects.
 Tablets |
 Smart phones |
 HD TV |
The industry is therefore highly impacted by the customer's very demanding requirements, referring to "shiny" aesthetic, durability, or shock and scratch resistance.
The coating & ink formulators have a game to play to support this industry by providing resistant inks to harsh environments, and suitable with most plastic materials used, allowing the device producers to make a fine tuned selection to elaborate his portfolio.
The latest developments of Takenate® specialty isocyanate from Mitsui ensure the screen printing ink producers to make his partners benefiting from one of the most high performance and versatile coatings.
They allow for scaling extra large images with no details loss and sharp small images designs, magnifying the final object and supporting the company's image of quality.
Key benefits of systems based on Takenate® isocyanates are:
-
Good chemical resistance
- High reactivity
- Good compatibility with other binder materials
- Good abrasion resistance
Takenate® also prove to be fully reliable with the adhesion performance on multiple substrates.
Below is a highlight of this performance with 2 distinct systems:
System 1 based on Takenate® D-110N (isocyanate) and polyol 1 (Acrylic - Polyester hybrid polyol designed for screen printing inks)
| |
PMMA |
Tempered PMMA |
Glass |
| Appearance Visual |
Clear |
Clear |
Clear |
| Pencil Hardness |
HB | HB |
HB |
Chemical Resistance
(EtOH) |
50 times
More than |
50 times
More than |
50 times
More than |
| Cross-cut test |
100/100
 |
100/100
 |
100/100
 |
| RCA Test(load:275g) |
50 times | 50 times |
50 times |
| |
PET |
ABS |
PC |
| Appearance Visual |
Clear |
Clear |
Clear |
| Pencil Hardness |
HB | B |
B |
Chemical Resistance
(EtOH) |
50 times
More than |
50 times
More than |
50 times
More than |
| Cross-cut test |
100/100
 |
100/100
 |
100/100
 |
| RCA Test(load:275g) |
50 times | 50 times |
50 times |
Figure 1: Analysis results made on Olester XQ7186Q/ Takenate® D-110N system (test 1)
System 2 based on Takenate® D-110N (isocyanate) and polyol 2 (Polyester polyol designed for screen printing inks)
| |
PMMA |
Tempered PMMA |
PC |
Glass |
| Appearance Visual |
Clear |
Clear |
Clear | Clear |
| Pencil Hardness |
B |
B |
2B | 2B |
Chemical Resistance
(EtOH) |
50 times
More than |
50 times
More than |
50 times
More than | 50 times
More than |
| Cross-cut test |
100/100
 |
100/100
 |
100/100
 | 100/100
 |
| RCA Test(load:275g) |
50 times | 50 times |
50 times | 50 times |
| |
PET |
ABS |
PC |
| Appearance Visual |
Clear |
Clear |
Clear |
| Pencil Hardness |
2B | 2B |
2B |
Chemical Resistance
(EtOH) |
50 times
More than |
50 times
More than |
50 times
More than |
| Cross-cut test |
100/100
 |
100/100
 |
100/100
 |
| RCA Test(load:275g) |
50 times | 50 times |
50 times |
Figure 2: Analysis results made on Olester XQ7199Q / Takenate® D-110N (test 2)
NB: formulations test
| Performance Test 1 |
Performance Test 2 |
| Olester XQ7186Q |
100.0 (parts by weight) |
Olester XQ7199Q |
100.0 (parts by weight) |
| PMAｃ |
98.3 (parts by weight) | PMAｃ |
126.7 (parts by weight) |
| To blend thoroughly |
To blend thoroughly |
| Takenate® D-110N |
23.4 (parts by weight) |
Takenate® D-110N |
23.4 (parts by weight) |
| Non-Volatile=35% |
Non-Volatile=35% |
To blend thoroughly
＜By use ratio of NCO／OH＝1.2／１＞ |
To blend thoroughly
＜By use ratio of NCO／OH＝1.2／１＞ |
