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What are the testing methods for cosmetic packaging materials

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What are the testing methods for cosmetic packaging materials

2024-05-09

As a fashionable consumer product today, cosmetics not only require exquisite packaging, but also provide the best protection for products during transportation or shelf life. Testing cosmetic packaging typically involves multiple aspects to ensure compliance with safety, hygiene, and aesthetic standards.图片1m6i


1.Appearance inspection: The most basic inspection step is to check whether the appearance of cosmetic packaging is flat, smooth, without obvious deformation, damage, scratches, etc. At the same time, various light sources can be used to illuminate the packaging to observe its luster, transparency, etc.


2.Odor detection: After opening the packaging, check if the cosmetics have any unusual or irritating odors. If there is, it may be a problem with the packaging materials or the cosmetics themselves.


3. Sealing test: This is to ensure the sealing performance of cosmetic packaging and prevent problems such as product leakage and spoilage. Common methods include bubble testing, water immersion testing, and pressure testing. Bubble inspection can be done by applying soap and water on the surface of the packaging to observe whether there are any bubbles produced; Water immersion inspection is the process of placing sealed packaging into water and observing for the formation of bubbles. If there are bubbles, it indicates that the sealing is not tight; Pressure testing can be performed using specific pressure gauges.

4. Corrosion resistance test: This is to evaluate the resistance of packaging materials to possible chemical components in cosmetics. The commonly used methods include immersion method and corrosion test method. The soaking method involves soaking packaging materials in cosmetic products for a period of time to observe whether there is any discoloration, deformation, or other phenomena; The corrosion test method is to apply cosmetic products to the surface of packaging materials and observe whether corrosion occurs after a certain period of time.


5.Stability test: This is to evaluate whether the packaging is stable during transportation, storage, and use. Common methods include high temperature test, low temperature test, and humid heat test.


6.Impact resistance testing: This is to evaluate whether the packaging can remain intact when subjected to impact. Generally, a dart impact tester is used for testing, and the impact resistance of plastic films is determined through the free fall ball method.


The specific testing methods may vary depending on factors such as the type of cosmetics, packaging materials, and production process. Therefore, when conducting cosmetic packaging testing, it is recommended to consult professional testing institutions or manufacturers to ensure the accuracy and reliability of the testing.