With the rapid development of domestic mechanical technology, plastic film, composite film, etc. have all achieved automated packaging on production lines, greatly improving work efficiency and saving a lot of manpower for society. However, as efficiency improves, quality issues become increasingly prominent, such as film breakage and slippage, leading to incidents of packaging line interruption, causing incalculable economic losses to packaging production and printing enterprises. The main reason for this is the lack of reasonable control over the friction coefficient of plastic film.

Therefore, detecting and processing the friction coefficient of plastic film in advance can effectively avoid the problem of subsequent production line interruption. This article takes the XJMC-06 friction coefficient meter as an example to conduct special tests on the friction coefficients of two types of plastic films provided by a packaging manufacturer. By detailed recording of the experimental process, results, and other data, it provides a reference direction and method for enterprises in need.

Keywords: plastic film, friction coefficient meter, dynamic friction coefficient meter, static friction coefficient meter, film friction coefficient testing

1. Purpose of testing

coefficient of frictionIt refers to the ratio of the frictional force between two surfaces to the vertical force acting on one surface.In actual packaging, it is also known as drag or resistance.

During the operation of the packaging machine, it is generally required that the friction coefficient of the inner layer of the film be relatively small, but not too small, otherwise it may cause unstable stacking during bag making and result in misalignment; The friction coefficient between the outer layer of the film and the metal surface dragged by the packaging machine needs to be moderate. If it is too high, it may cause excessive resistance during the packaging process, resulting in material stretching deformation. If it is too low, it may cause the dragging mechanism to slip, causing inaccurate tracking and cutting positioning of the electric eye.

By testing the friction coefficient of two types of plastic films, it can effectively help manufacturers screen and pre process products suitable for production lines, avoid risks in advance, and minimize unnecessary losses for enterprises.

2. Execution standards

GB 10006 "Determination of Friction Coefficient of Plastic Film and Thin Film" is equivalent to ISO 82951986 "Determination of Friction Coefficient of Plastic Film and Thin Film" and ASTM D1894 "Test Method for Static and Dynamic Friction Coefficient of Plastic Film and Thin Film"

3. Test sample

Two plastic films made from slightly different materials (note: this sample is provided by the customer)

4. Testing equipment

The "XJMC-06 Friction Coefficient Instrument" independently developed by Xiangjie complies with national standards: GB 10006, ASTM D1894

5. Testing process

1) Cut two samples of the same size from two plastic films and conduct a control test.

2) Lay sample 1 flat on the test board and press it down with a slider covered with felt on the bottom.

3) Start the instrument and set various parameters. Number 1, measure both dynamic and static friction coefficients, slide mass 200g, speed 150mm/min, start the experiment.

4) After the experiment is completed, click "Experiment" again and the system will automatically print the data.

5) Remove sample 1 and place sample 2 on the test plate.

6) First 'reset', then 'reset', start the experiment.

7) At the end of the experiment, record and compare the results of the two experiments to facilitate user analysis.

6. Test results

7. Conclusion

The "XJMC-06 Friction Coefficient Instrument" independently developed by XiangjieAll accessories are made of imported components, making them more stable and reliable in performance. The test bench and slider have undergone "demagnetization treatment" and "remanence treatment", effectively reducing system testing errors, ensuring more accurate data, and greatly facilitating user operation and analysis of results. It is a professional high-precision and high-efficiency instrument that manufacturers are worthy of choosing and trusting.

Xiangjie InstrumentContinuously innovating products, constantly improving technological research and development capabilities, and creating services for users from solution design, product development to solution implementation.