Case study: Mecmesin's packaging tension test

  • Mecmesin

Specification

Graphic Packaging International is a leading designer and manufacturer of food and beverage packaging. The company needed to perform integrity checks on beverage basket carriers and cardboard box packaging to optimise production line efficiency and maintain consistent standards of packaging quality.

Constructed from multiple pieces of card, which are glued together, the packaging is initially manufactured flat and opened out to accommodate the end product whilst moving along the production line. A tensile test could ascertain whether processes were optimised to enable the glue to set in time for the next stage of production to begin. It could also ensure the correct application of glue on the tabs, to minimise the risk of packages sticking together, preventing them from opening out when required.

Solution

This application required a bespoke solution to be designed and manufactured. Together with Graphic Packaging International, Mecmesin created a vacuum fixture, which mimicked the actions of the end-users application. The vacuum fixture uses suction to hold onto the flat packed basket carrier, which is clamped into position on the specially manufactured base plate. Using a MultiTest-x (semi-automatic) test system, the top of the basket carrier is raised at a speed of 500mm/min, opening out the packaging to a maximum load of
11N in order to determine its integrity. Prior to purchasing a Mecmesin test system, Graphic Packaging had performed this test by hand assessment only.
Since the introduction of the system, the company has been able to reduce recall costs by 40%.

System

  • MultiTest-1 test stand
  • 100 N loadcell
  • Bespoke vacuum fixture

Supplied to: Graphic Packaging International

See also

Cosmetic packaging pull-off test

A bench-top testing system was required to repeatably test the pull-off force on a variety of cosmetic containers. The system needed to allow a relatively high volume of containers to be tested with the minimum level of training required for users. Mecmesin's solution avoided the risk of damaging the loadcell by excessive torque on tightening the collet grip, and the lipstick barrel was first inserted in the grip and then connected to the gauge by a flexible chain-link.

Food packaging made from thermoformed plastics and intended for freezing, requires testing to ensure optimum functionality when closing and sealing the container. The closing effort of the lid is measured by using a motorised force tester controlled by software together with a custom-designed fixture to hold standard-sized ice cream tubs. In addition the ‘top-load’ crush strength of the container itself can also be tested on the same machine to guarantee it is rigid enough to avoid buckling and spillage when the lid is applied.

Mecmesin develops Combi Cork-i Extraction Tester for leading Scottish whisky

To improve the quality and storage of a premium product, the R&D team at a leading Scottish whisky maker needed to optimise the design of their bottle stoppers. They decided that the strength and performance of their reusable stoppers could be ensured by systematic testing of the characteristics of both portions of the stoppers. Working closely with the R&D team, Mecmesin developed the Combi Cork-i Extraction Tester, an innovative multi-function cork extraction testing system that tests both phases of de-corking synchronously.

  • Jeff West
  • Product Info
  • English
  • Created 11 Oct 2016
  • Modified 08 Nov 2016
  • Hits 1439