SILVER CONDUCTOR DLS-70

CONDUCTIVE PASTE FOR LASER ETCHING OF TOUCH SCREEN PANEL

Product Description

DLS-70 is a one part, conductive paste designed primarily for the purpose of laser etching. 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 325 or 400mesh screen with a 6-10um 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

Butyl Carbitol Acetate.(CAS : 124-17-4)

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

DLS-70  should be stored frozen until ready for application. The shelf life is 4 months(0℃ ~ 5℃) from date of manufacture.

Specification Data

ItemsValueRemarks

Silver content70±2%TGA

Particle sizeD500.5~1.0?PSA

Viscosity

(cps)10rpm80,000~100,000Brookfield

HBT-DVII
SP#14

@ 25 ± 0.5℃

TI(5/50)4.0 ± 1.0

Volume resistance12.0 ≤ ×10-4Ωcm-

AdhesionCross cut2≥ 5B ASTM D3359

Pencil hardness3≥ 2H-

Printability4Continuous≥ 150 times325mesh,18?

400mesh,18?

Emulsion:6~10?

Thickness5~8?

Laser etching imagePrinting 3D image

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 2mm.