Thickness test principle and method of thick clear plastic sheeting rolls
May 08, 2019
Among the plastic film materials of many food packaging bags, the thick clear plastic sheeting rolls has the advantages of good softness, good tensile and anti-stretching mechanical properties and superior barrier properties, and is applied in food packaging bags and food composite packaging inner film. widely. Its impact resistance, tensile strength, and gas barrier properties are closely related to the thickness of thick clear plastic sheeting rolls. Therefore, in the food packaging thick clear plastic sheeting rolls material, it is a very important process to control the thickness uniformity and thickness of the film by using a professional film thickness measuring instrument.
The film thickness gauge is a mechanical contact film thickness measuring instrument. Its internal design uses high-precision displacement sensor and professional measurement and control software. We can choose automatic or manual measurement mode when testing; measure thick clear plastic sheeting rolls The thickness measurement and control system supports automatic sample injection; the measuring head automatically moves up and down to show the film thickness deviation at different positions. Finally, the system automatically records the maximum, minimum, and average values, as well as the deviations of the different thicknesses automatically calculated by the instrument sensor. It is used to judge the thickness uniformity of the thick clear plastic sheeting rolls and whether it meets the film thickness standard requirements.
The measurement procedure for the thickness of the thick clear plastic sheeting rolls is as follows: cutting three thick clear plastic sheeting rolls patterns of a certain size; opening the instrument, setting parameters, placing the gauge block, and clicking "confirm". Remove the slider, reset the parameters, and place a sample of the thick clear plastic sheeting rolls that has been cut beforehand. Take 3 different points for each sample, and position them as far as possible to avoid affecting the data due to too close distance. All samples were tested and the data was uniformly summarized.
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