This is an instrument to test the tackiness of pressure
sensitive adhesive coated on the film, tape or P.S. Label stock.
A steel ball is allowed to be rolled down from a specific
starting point on the grooved path inclined at a specific angle to the base of
the test platform. The pressure sensitive tape is affixed (tacky side up) just
beneath the end of the inclined grooved path of the platform. The rolling ball
attains maximum velocity at touch down, and rolls above the tacky surface which
retards its motion by virtue of resistance offered by the adhesive till it
stops the ball. The shorter the distance travelled the higher is the tackiness
of the adhesive coating.
Let see the testing procedure:
Thanks for sharing this informative post. It's very helpful. Keep it up!
ReplyDeleteRolling Ball Tack Tester | Laboratory Testing Equipment & Instruments