Handle-o-Meter

The Handle-o-Meter is a testing machine developed by Johnson & Johnson and now manufactured by Thwing-Albert that measures the "handle" of sheeted materials: a combination of its surface friction and flexibility. Originally, it was used to test the durability and flexibility of toilet paper and paper towels.^[1] It is also used to measure the stiffness of packaging film.^[2]

The test sample is placed over an adjustable slot. The resistance encountered by the penetrator blade as it is moved into the slot by a pivoting arm is measured by the machine.^[3]

Details

The data collected when such nonwovens, tissues, toweling, film and textiles are tested has been shown to correlate well with the actual performance of these specific material's performance as a finished product.^[4]

Materials are placed over a slot that extends across the instrument platform, and then the tester hits test. A beam then protrudes through the slot and a strain gauge measures the force that the material exerts on the beam. Stiff materials offer greater resistance to the movement of the beam.^[3] Machine direction and transverse stiffness are measured separately.^[5]

There are three different test modes which can be applied to the material: single, double, and quadruple. The average is automatically calculated for double or quadruple tests.^{[citation needed]}

Restrictions on measuring the friction between the platform and the material limit the instrument's accuracy.^[6]

Features

Adjustable slot openings
Interchangeable beams
Auto-ranging
2 x 40 LCD display
Statistical Analysis
RS-232 Output and Serial Port
Industry Standards:
ASTM D2923, D6828-02
TAPPI T498
INDA IST 90.3

References

^ Technical Association of the Pulp and Paper Industry. Vol. 48. Technical Association of the Pulp and Paper Industry. 1965. pp. 58–61.
^ Hansen Jr., Orin C.; Marker, Leon; Ninnemann, Karl W.; Sweeting, Orville J. (1963). "Relationship between dynamic modulus of thin films and stiffness, as determined by the Handle-O-Meter". Journal of Applied Polymer Science. 7 (3): 817–832. doi:10.1002/app.1963.070070303.
^ ^a ^b Gordon L. Robertson (2016). Food Packaging: Principles and Practice, Third Edition. CRC Press. p. 96. ISBN 9781439862421.
^ "Handle-O-Meter softness testing machine". Thwing Albert. Archived from the original on 24 September 2012. Retrieved 2 March 2013.
^ The Complete Technology Book On Plastic Films, Hdpe And Thermoset Plastics. NIIR Project Consultancy Services. 2006. pp. 148–150. ISBN 9788178330112.
^ D H Morton; A Marks (1965). "The measurement of flexural rigidity of thin polymeric films". Journal of Scientific Instruments. 42 (8): 591. Bibcode:1965JScI...42..591M. doi:10.1088/0950-7671/42/8/327.

External links

Manufacturer's datasheet

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[1] Technical Association of the Pulp and Paper Industry. Vol. 48. Technical Association of the Pulp and Paper Industry. 1965. pp. 58–61.

[2] Hansen Jr., Orin C.; Marker, Leon; Ninnemann, Karl W.; Sweeting, Orville J. (1963). "Relationship between dynamic modulus of thin films and stiffness, as determined by the Handle-O-Meter". Journal of Applied Polymer Science. 7 (3): 817–832. doi:10.1002/app.1963.070070303.

[Robertson2016-3] Gordon L. Robertson (2016). Food Packaging: Principles and Practice, Third Edition. CRC Press. p. 96. ISBN 9781439862421.

[handle-o-meter-4] "Handle-O-Meter softness testing machine". Thwing Albert. Archived from the original on 24 September 2012. Retrieved 2 March 2013.

[5] The Complete Technology Book On Plastic Films, Hdpe And Thermoset Plastics. NIIR Project Consultancy Services. 2006. pp. 148–150. ISBN 9788178330112.

[6] D H Morton; A Marks (1965). "The measurement of flexural rigidity of thin polymeric films". Journal of Scientific Instruments. 42 (8): 591. Bibcode:1965JScI...42..591M. doi:10.1088/0950-7671/42/8/327.

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