Control elements of food packaging bag testing instruments:

Based on the summary of China and relevant standards, the testing items for flexible packaging materials mainly include the following points:

1. The tensile testing machine for soft packaging mechanics testing automatically completes the testing of materials' tensile strength and elongation, heat sealing strength, peel strength, elastic film amount, and tensile stress by controlling the interface of the LCD display menu through a computer, selecting the corresponding testing items. In addition, with corresponding fixtures, this tensile machine can also test the peeling force and puncture resistance of the packaging cover film of food packaging such as frozen cups and instant noodle packaging boxes, with powerful functions.

2. The sealing performance testing of flexible packaging, poor sealing is the main cause of packaging leakage and pollution. The sealing performance has a great impact on food safety and is an important indicator of packaging testing.

3. The core factor why flexible packaging film materials replace glass or metal packaging materials is that they can achieve high barrier performance almost similar to glass or metal packaging, while also possessing advantages such as lightness that glass or metal packaging does not have. To ensure the uniformity and stability of the barrier performance of the film material, strict quality control of its thickness is required.

4. Friction coefficient testing is an important indicator for evaluating the smoothness performance of packaging materials on both the inner and outer sides. By testing to ensure its good openness and smooth transportation and packaging on high-speed production lines, it meets the requirements for the development of high-speed product packaging.

5. Printing quality inspection - color control. In color printing, manual color discrimination is required, which often leads to different evaluations due to different lighting environments or printing quality problems caused by the phenomenon of same color but different spectra. Equipping standard light sources can effectively avoid such problems.

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