Internal Bond Testers

Product Description Property/Function Catalog #

Internal Bond Sample Prep Station

A consistent method of sample preparation is necessary to insure repeatable test data. The TMI Ibond prep station automatically presses and cuts test specimens to exact requirements providing significant improvements in testing precision. The 80-30 Sample Prep Station provides a consistent adhesive transfer when pressing the test specimen between the double-sided tape and aluminum platens.

Internal Bond Testers


ZDT Tester

There are several methods developed to measure internal bond strength or delamination strength of paper and paperboard. The most common are the Scott type internal bond strength which is a dynamic impact test based on the energy stored when a pendulum is released. A second method is the z-direction tensile tester. ZDT measures the tensile strength of a specimen which is sandwiched and compressed between two adhesive tapes. After compression, the specimen is separated to determine the maximum force at rupture of fibers or ply bonds.

Internal Bond Testers


Internal Bond Tester and Prep Station

The Internal Bond™ Tester is designed to determine the internal bond strength of a variety of Paper and Board materials according to TAPPI T 569 and ISO 16260. The instrument design is based on a falling pendulum which creates a high speed impact on a paper specimen. The paper specimen is sandwiched between two double-coated tape substrates. The pendulum impact measures the total energy required to delaminate the internal fibers of a specimen in a “Z” type direction into two piles.

An automatic sample preparation station
(Model 80-30)
is available which allows five specimens to be accurately prepared simultaneously. (The prep station includes a safety enclosure over the cutting blades, eliminating the use of box cutting knives to separate the specimens).

Internal Bond Testers


Lab Master® Z-Directional Tensile Tester

The measurement of Z-Directional tensile strength was developed to determine the structure of a sheet of paper or board when subjected to tensile stresses in the out-of-plane direction or Z-Direction. Z-Directional Tensile Strength is a measure of the internal fiber bonding strength of a substrate.

Internal Bond Testers


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