How is board stiffness and crease resistance measured?
The method for stiffness measurement is outlined in several international standards. These standards describe cutting a sample of pre-determined size either from a sheet of virgin material or from a pre-formed carton blank.
The sample is gripped in jaws and rotated through a set angle, and the force transmitted through the sample is measured. This force is quoted in grams for comparative measurements or g/cm2 -an absolute value for the tested substrate. Some instruments may also quote the value in mN or mN/m2.
Related products
AFNOR Viscosity Flow Cup
- 2mm - 8mm orifice diameter
- 15 – 3000 cSt viscosity range
- 25 -150 sec flow times
- Supplied with a certificate of conformity
- Sheen 419/2.5, 419/4, 419/6 & 419/8 equivalent
ASTM D1200 Viscosity Flow Cup
- 2.1mm - 5.8mm orifice diameter
- 10 – 1200 cSt viscosity range
- 30-100 sec flow times
- Supplied with a certificate of conformity
- Sheen 406/1, 406/2, 406/3, 406/4 & 406/5 equivalent
Bespoke cutter die – 1 or 2 of the same shape
Bespoke cutter die - 1 or 2 of the same shape
