Thickness Testing of Cosmetic Packaging Material is very important to cosmetic quality. Whether the thickness of cosmetic packaging materials is identical is the premise for testing other indexes. Uneven film will not only influence the permeation and elongation strength but the following processing of film materials. There are several means for thickness measurement, namely contact and non-contact. Non-contact type includes ray, eddy current and ultrasonic wave. Contact type, also called mechanical thickness testing is further classified into point contact and surface contact. Now, the film thickness testing of cosmetics adopts mechanical surface testing method, which is also called the arbitration method for thickness. Take Labthink CHY-C2 Thickness Tester as an example. Place a piece of even material on testing platform, set testing interval and statistical time and start the tester with automatic performance. The resolution of this tester is 0.1um.

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