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CONDUCTIVE PASTE FOR FINE PATTERN
APPLICATION OF TOUCH SCREEN PANEL
Product De
DTS-705-1 is a one part, conductive paste designed primarily for the purpose of fine pattern in screen printing. It can be used with semi-automatic, and manual printers, and offers excellent residence time on the screen. The cured film has excellent electrical and mechanical properties with good adhesion to a variety surfaces(ITO coated film).
Processing Procedures
Application
Before use, take paste out of the refrigerator, leave it in a room in the sealed state for approximately one hour, then use after mixing well.
The material may be applied by screen printing, a 400 or 500mesh screen with a 8-12um organic emulsion backing is recommended. Use a hard silicone squeegee. Screens can be cleaned with organic solvents such as 1st Ethyl carbitol, 2nd Ethanol or Isopropyl Alcohol.
Dilute solution
Ethyl Carbitol Acetate.(CAS : 112-15-2)
Curing
Minimum cure is 130℃ for 30 minutes. Cure time is only a guide. Optimum conditions will vary depending upon application and will need to be determined experimentally.
Storage
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Items |
Value |
Remarks |
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Silver content |
74±2% |
TGA |
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Particle size |
D50 |
1.5~1.7 |
PSA |
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Viscosity(cps) |
10rpm |
180,000~220,000 |
Brookfield HBT-DVII , SP#14 @ 25 ± 0.5℃ |
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TI(5/50) |
4.0±1.0 |
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Volume resistance1 |
≤ 1.5×10-4Ωcm |
- |
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Adhesion |
Cross cut2 |
≥ 4B |
ASTM D3359 |
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Pencil hardness3 |
2H |
- |
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Printability4 |
Continuous |
≥ 150 times |
400mesh,18Emulsion:10 |
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Line width |
68~72 |
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Thickness |
9~11 |
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Printed image |
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Curve |
Straight |
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Test Condition
1. Printed samples cured at 130℃ for 30 minutes on glass.
2, 3. Printed samples cured at 130℃ for 30 minutes on ITO coated PET film.
4. The original designed value of the printing mask : Line width 70, Line pitch 70.