Many people need to conduct food grade tests on raw materials when making products related to food and toys, such as EN71 and FDA, to ensure the safety of the final product. The idea of this type of test is to simulate the digestive environment of the human body, immersing the tested substance in strong acid for more than 1.5-2 hours, and simulating the process of digestion by gastric acid in the stomach for 1.5-2 hours after swallowing, to confirm whether the tested substance will decompose into harmful substances, causing harm to the human body.

Glow in the dark mixture can pass EN71 detection

The characteristics of glow in the dark pigment itself determine that it can only contact neutral substances with pH 6-8, and cannot directly contact strong acids, as strong acids can corrode and destroy glow in the dark pigment, making it unable to emit light. Therefore, it is not feasible to directly use glow in the dark pigment for food grade testing.

So, how did the raw materials of the luminous pacifiers, luminous cups, and luminous toys seen on the market pass the food safety test?

After our suggestions, customers have used glow in the dark masterbatches, glow in the dark inks, etc., which have passed the tests of EN71-3&9 and FDA. This is because the glow in the dark pigment will not directly contact strong acids after being wrapped by the medium. As long as the medium does not precipitate harmful substances when exposed to strong acids, the luminous mixture can pass the test.

To sum up, glow in the dark pigment cannot be directly used for food safety testing, and the semi-finished product after wrapping glow in the dark pigment with media should be used for testing.