Seal Strength and Peel Testing of Packaging
Paper coatings, plastic films and foils are examples of some of the many materials used as lidding mechanisms for packaging applications in a variety of industries. Barrier properties, seal strength, peel strength, and shelf life as well as many other characteristics are affected by the materials used as sealing lids. The amount of force required to open a lid (seal strength) is extremely important for end-use usability and for product security.
A manufacturer of food trays was interested in measuring the seal strength of their products for many of the reasons mentioned above, and asked us for a testing configuration recommendation. Using an Instron electromechanical test frame, a 180 degree peel test was conducted to measure the initial peel strength. We used an Instron model 3345 single column test frame configured with a 500N load cell and 1kN side acting pneumatic grips to perform testing on both full trays and on one inch wide cut strips to attain repeatable results. The initial peel strength was measured by peeling the lid back from the corner of the part by gripping onto the removal tabs. In order to be able to fit the specimen between the grips with minimum grip contact, the grip faces were attached vertically. The test was run at a crosshead speed of 200 mm/min until the lid was completely removed.
5900 만능재료시험기는 정밀도, 내구성, 변화되는 요구사항에 유연하게 대처합니다. 작업자의 시험 경험을 향상시키고 시험의 효율성을 높이기 위한 표준 및 옵션들을 갖추고 있습니다. 100N에서 600k N에 이르는 용량을 시험할 수 있는 다양한 범위의 모델이 있습니다.
- 2.2 MB
3300 시리즈 테스팅 장비는 표준화되고 반복적인 테스팅 작업의 요건을 수용하도록 개발되었습니다. 이 시리즈는 Instron 품질을 가장 저렴한 가격으로 제공해 줍니다.
- 13.8 MB
Screw side-action grips provide a very simple and efficient method for holding test specimens in a wide range of applications. The dual - acting design of 2710-100 series grips means that jaw faces can be adjusted to accommodate different specimen thicknesses. This ensures that the line of tensile force remains concentric with the grip body. They can be equipped with a selection of interchangeable grip jaw faces in various sizes and choice of surfaces including smooth ground, rubber-coated and serrated. Line contact and special coated faces are also available.The unique ‘snap-on’ jaw face attachment makes changing faces extremely quick and simple.
- 1.3 MB
Instron® 2712-04x Series Pneumatic grips, packed with features to enhance gripping performance, usability, and operator safety.
- 0.7 MB