Self-adhesive is a special kind of self-adhesive paper material, which can be directly pasted without glue. Self-adhesive material is usually composed of three parts: surface material, adhesive and base paper. The surface material is usually paper, plastic film or metal foil, etc., adhesive is a strong viscous chemical substance, the bottom paper is usually a smooth, easy to tear paper or plastic film.

Detection performance
The performance testing of self-adhesive usually includes the following aspects:

Adhesion: refers to the adhesion force generated when it is attached to different surfaces, which can be measured by the adhesion tester.

Peeling force: refers to the strength of the adhesive peeling from the adhesive surface under certain conditions, which can be measured by using a peeling force tester.

Adhesive property: refers to the ability of the adhesive to maintain on different surfaces under certain conditions, which can be measured by the adhesive tester.

Self-adhesive performance testing and testing method

Fit performance: refers to its appearance and texture after being fitted on different surfaces, which can be evaluated by visual inspection and tactile inspection.

Temperature resistance: the stability of the adhesive at different temperatures can be measured using a thermal stability tester.

Water resistance: the stability of the adhesive under different humidity conditions can be measured by using a water stability tester.

Oil resistance: the stability of the adhesive under different oil conditions can be measured by the oil stability tester.

Environmental protection: whether the self-adhesive has an impact on the environment in the process of production and use, you can use environmental testing instruments to measure the content of volatile organic compounds, heavy metals, chloride ions and other harmful substances.

Specifically, different self-adhesive materials may need to use different detection methods and instruments to ensure the accuracy and reliability of the detection results. For example, for the self-adhesive of plastic film surface material, pressure sensitive adhesive adhesion tester, heat resistance tester, oil resistance tester, environmental testing instrument can be used to test its performance; For the paper surface material of the adhesive, you can use the adhesion tester, peeling force tester, fit performance tester to test its performance.

Self-adhesive performance testing and testing method

In the specific detection process, it is necessary to select the appropriate detection instrument and method according to different detection items, and at the same time, it is also necessary to carry out the corresponding detection according to different application fields and requirements. For example, if the self-adhesive material is used for food packaging, it is necessary to test its food contact safety, including the detection of its volatile organic compounds, heavy metals, harmful substances and other content. At the same time, the service life and environmental protection performance of self-adhesive materials also need to be tested.

Test method and instrument
The performance testing of self-adhesive requires the use of different testing instruments and methods to detect different performance indicators. Here are some common detection methods:

Adhesion test: Use the adhesion tester to stick the non-dry adhesive on the surface of the sample and measure its adhesion under specific conditions. This test method is generally suitable for measuring the adhesion of self-adhesive and paper, plastic, metal and other surfaces.

Peeling force test: Using a peeling force tester, the sticker is peeled from the surface under specific conditions and the force required for peeling is measured. This test method is generally suitable for measuring the strength and tensile properties of stickers during the peeling process.

Adhesive test: The adhesive tester is used to measure the adhesive property between the adhesive and the sample surface under specific conditions. The method of cyclic peeling and re-adhesion is usually adopted to detect the long-term adhesive property of the adhesive.

Self-adhesive performance testing and testing method

Thermal stability test: Use a thermal stability tester to test the stability of the adhesive at high temperature to detect its high temperature resistance.

Humidity stability test: Use the humidity stability tester to test the stability of the adhesive in a high humidity environment to detect its moisture resistance.

Packaging performance test: Use the packaging performance tester to test the packaging performance of the self-adhesive material, including the degree of breakage, compressive performance, tensile performance, tearing performance and other indicators.

Environmental protection performance test: use environmental protection performance test instruments to test the content of volatile organic compounds, heavy metals, chloride ions and other harmful substances in the self-adhesive material to detect its environmental protection performance.

The above methods are not all self-adhesive performance test methods, different types of self-adhesive need to choose different test methods. In addition, it should be noted that the appropriate detection conditions should be selected during the detection to ensure the accuracy and reliability of the detection results.