Why does colored paper not fade when it meets water?

It may be because the color is plated on colored paper through the principle of hot melting or its infiltration, and the material is insoluble in water, so it will not fade.

Generally speaking, cardboard refers to a kind of strong and heavy paper, which is the general name of a kind of thick paper between paper and cardboard. And colored paper means colored paper.

Paperboard needs high whiteness. A whiteness is not less than 92%, B whiteness is not less than 87%, and C whiteness is not less than 82%. Paperboard is waterproof and moderately soft. However, colored paper is easy to store for a long time, with low ash and less paper powder. Cardboard weighs more than 120g per square meter, and is generally used for postcards, card lanes, album liners, etc. Colored paper is generally used for handmade products, such as flowers, gift boxes and so on.