What does the color label on the toothpaste mean?

The color labels on toothpaste represent different ingredients of toothpaste. Common color labels are green, blue, red and black.

* The green label indicates that toothpaste contains natural ingredients.

* The blue label indicates that toothpaste contains some natural ingredients and some pharmaceutical ingredients.

* The red label indicates that toothpaste contains some natural ingredients and some chemical ingredients.

* The black label indicates that toothpaste contains all chemical ingredients.

Color code is mainly used to locate and identify the end of the product in the toothpaste production process, also known as electric eye positioning point. Although the color can be arbitrary in theory, in actual printing, black as the best sensing color is mostly used as the standard color.