With the rapid development of the packaging industry, flexible packaging materials (film, composite film, paper-plastic-aluminum, etc.) are gradually replacing the original glass, metal and other materials due to their advantages such as easy transportation and good sealing performance. They are gradually occupying the first place in food packaging materials, and their quality control issues are also receiving more and more attention from manufacturers.
1. Flexible packaging gas permeability, water vapor permeability, solvent residue, residual oxygen and other performance tests:
Food spoilage is mainly caused by microbial contamination and oxidative deterioration. Therefore, in addition to the quality of the food itself, the gas permeability, water vapor permeability, solvent residue, residual oxygen and other properties of the packaging material are the main factors affecting the shelf life of the food. To test the gas permeability, water vapor permeability, solvent residue, residual oxygen and other properties of flexible packaging, a gas permeability meter, a water vapor permeability meter, and a gas chromatograph are required.
SN-W01 Water Vapor Transmission Rate Tester
SN-N01 Gas Permeability Tester
SN-H103 Water Vapor Transmission Rate Tester
GC-05 gas chromatograph
2. Flexible packaging mechanical strength test:
The mechanical strength of flexible packaging includes material breaking force and elongation, heat seal strength, tear strength, peel strength, elastic modulus, constant tensile stress, etc. Electronic tensile testing machine is used to test the mechanical strength.
Electronic tensile testing machine
3. Flexible packaging sealing performance test:
Poor sealing is the main cause of packaging leakage and contamination. Sealing performance has a great impact on food safety and is an important indicator for packaging testing. In the industry, sealing testers are used to test the sealing performance of packaging.
SN-MF2 Leak Tester
4. Thickness detection of flexible packaging materials:
The core reason why flexible packaging films are replacing glass or metal packaging materials is that they can achieve high barrier properties that are almost as high as those of glass or metal packaging, while also offering advantages such as lightness that glass and metal packaging lack. To ensure the uniformity and stability of the film's barrier properties, strict quality control of its thickness is required. This is where a thickness gauge comes in.
SN-CH2 Electronic Thickness Gauge