The compatibility of packaging materials broadly refers to the interaction between the cosmetic hose and the contents, including chemical compatibility, physical compatibility, and biocompatibility. Next, Suzhou Meichangsheng Plastic Co., Ltd., a manufacturer of cosmetic hoses, introduces the compatibility test methods and results of cosmetic hoses as follows:
Compatibility Test Method for Cosmetic Tubes
The general situation is to put the corresponding content into the hose and place it in a constant temperature and humidity box at 40°C and 75%RH for 4 weeks. The product must not change color (including printing content), ink/hot stamping layer/electroplating layer/spraying layer fall off , melting and other abnormalities. In other special circumstances, special tests are arranged.
Cosmetic hose compatibility test results
1. Chemical incompatibility
Simply put, chemical incompatibility means that the chemical components in the packaging material react chemically with certain components in the content, which manifests as changes in the appearance and smell of the packaging material or content.
2. Physical incompatibility
Physical incompatibility refers to the physical changes that occur between the cosmetic hose and the contents due to the interaction, such as cracking, dissolution, adsorption, penetration, etc.
3. Biological incompatibility
Biological incompatibility refers to the migration of certain substances in the cosmetic hose into the cosmetics. For this judgment, the dissolution amount of harmful substances is directly used as the basis for judgment. And this is strictly regulated in the cosmetics hygiene standard.
