Dairy products, as a common consumer good, play a significant role in daily life. With the improvement of living standards, consumers have become more demanding and discerning. To meet these evolving needs, dairy manufacturers continuously introduce new products and packaging solutions. Today, various types of dairy packaging are available, including aseptic, fresh, retort-resistant, square boxes, roof-shaped, soft plastic, and bottled formats. Flexible packaging for dairy products offers unique advantages, and its market share is steadily increasing. As a result, quality control in flexible packaging has become increasingly important. This article provides an overview of the key quality inspection and analysis techniques used for dairy flexible packaging.
I. Detection and Analysis of Composite Strength of Dairy Soft Packaging Materials
Most dairy soft packaging materials on the market, such as sterile pouches, are made from composite plastics or paper. The higher the composite strength, the better, as it ensures resistance to tearing and delamination. High-viscosity adhesives help maintain strong bonding between layers, preventing them from separating during use. However, excessive adhesive usage can increase production costs. Therefore, accurate detection and analysis of composite strength are essential to optimize the process and reduce costs. While general-purpose tensile testing machines are widely used, they often lack precision. The PC-type intelligent electronic tensile testing machine from Jinan Languang is specifically designed for flexible packaging testing. It complies with GB 8808-88 standards and features a unique hoe-tailing function, real-time force display, and curve analysis, making it an ideal tool for evaluating composite performance.
II. Detection and Analysis of Friction Coefficient of Dairy Soft Packaging Materials
Measuring the friction coefficient of packaging materials helps control the opening quality of bags and the efficiency of packaging machines. Chinese equipment now meets international standards, offering features like oscillating coefficient settings and intelligent data processing. Labthink Languang’s MXD-02 machine addresses challenges caused by differing standards such as GB10006, ASTM D1894, and ISO8295, providing accurate and reliable results.
III. Detection and Analysis of Permeability and Moisture Permeability of Dairy Packaging Materials
Breathability and moisture permeability are critical factors affecting the shelf life of dairy products. Instruments like Labthink Languang’s PERME OX2/230 oxygen transmission rate test system use advanced technology to measure gas permeability accurately. This system supports multiple samples at once, significantly improving testing efficiency.
IV. Detection and Analysis of Heat Seal Strength of Dairy Product Flexible Packaging
Heat seal strength is vital for ensuring the integrity of dairy packaging. The PC-type intelligent electronic tensile testing machine from Jinan Languang can automatically measure and analyze seal strength, helping manufacturers optimize sealing processes.
V. Sealing Test Analysis of Dairy Product Packaging
Sealing quality directly impacts product safety. Common methods include vacuum testing, while quantitative methods like positive pressure testing provide more accurate results. Labthink’s LSSD-01 leakage tester is an effective tool for this purpose.
VI. Other Quality Inspection and Analysis of Dairy Packaging
Beyond structural and functional tests, visual aspects like print quality are also crucial. Tools such as spectrodensitometers and friction testers help ensure consistent and high-quality printing, enhancing product appeal and market competitiveness.
In conclusion, these quality inspection techniques are essential in the dairy packaging industry to ensure product safety, enhance performance, and meet consumer expectations. Continuous testing and process optimization guide the production of safe, high-quality dairy products.
Jinan Languang Electromechanical Technology Co., Ltd.
Jinan Languang Market Department
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