Paperboard Internal Bond Strength Test TAPPI T569
Internal bond strength tester is mainly used in the determination of bonding strength between paper and paperboard. It is suitable for single and multi-layer paper and paperboard, including coated paper, paper or paperboard which coated with synthetic polymer film.
Note: It is not suitable for low basic weight, porous, soft or lower density paper and paperboard.
The instrument is the ability of the paperboard resist the separation between layers, and also the reflection of the internal fiber bonding strength of paper. It is so important that the internal fiber bonding strength can be fully controlled for processing multi-layer paper and cardboard. If the internal fiber bonding strength is lower or uneven distribution, it may cause some problems of paper and cardboard tiled in the offset press which use viscous ink. The test has been widely used in multi-layer board such as box paperboard, white paperboard, gray board paper, white cardboard in the printing and packaging industry.
The indication test unit are lbf/in² and J/m²
Standard accordance to TAPPI T-569, T-833
Paperboard Internal Ply Bond Test
Specification
| Model | EI-IBT |
| Measuring Range |
Range-A (20 ~ 500 J/m²) Range-B (500 ~ 1000 J/m²) |
| Accuracy |
A: ±1 J/M² B: ±2 J/M² |
| Sample clamping load | 0 ~ 400 N (adjustable) |
| Resolution | 0.001 lbf/in² |
| Impact Angle | 90° |
| Unit Measuring | J/M² , lbf/in² Switchable |
| Sample Dimension | 25.4 x 25.4 mm |
| Number of Samples | 5 pieces |
| Display | 3.2 Inch LCD |
| Printer | Build-in Thermal Printer |
| Power | 240 V, 50 Hz |
| Dimension | 500 (W) x 400 (D) x 650 (H) mm |
| Weight |
Approx. 70 kg |
PDF Data Sheet – Internal Ply Bond Strength Tester
Demo Video