Why do blow molding products fade?

Many people say that blow molding products are very good, but the editor found that some people responded that blow molding products would fade, so blow molding products were questioned. Today, Kunshan blow molding manufacturers will introduce blow molding products. Why does it fade? Solve everyone's doubts.

The fading of blow-molded products is often caused by humans, which are mainly divided into the following reasons:

1. Acid and alkali resistance

The fading of blow molding products is often caused by the chemical resistance of the toner, such as molybdenum-chromium red, which is resistant to dilute acid, but is sensitive to alkali, and cadmium yellow is not acid-resistant, which seriously affects the coloring effect of the toner. , which induces fading.

2. Heat resistance

This is very well understood. Heat resistance refers to the degree of discoloration and fading of pigments at high temperatures. For colorant pigments, organic pigments will change the molecular structure at high temperatures and induce fading consequences; while inorganic pigments Pigments have relatively high heat resistance and are more stable.

3. Lightfastness

The poor light resistance of the coloring agent will directly lead to fading. Many blow molding products are outdoor products, so light resistance is the first requirement. As a general professional rule, the light resistance of outdoor products must not be lower than level 6, which is an internal product. Generally choose 4-5 grades.

4. Antioxidant

Some inorganic pigments gradually fade due to the dissolution of macromolecules or other modifications after oxidation. This process is one of high temperature oxidation in production and processing, and the other is oxidation that occurs when encountering strong oxidants. After the lake, formamide paste and iron oxide yellow are mixed and applied, the redness will gradually decrease.

Why do blow molding products fade? The above editor lists several relevant elements, hoping to help you, try to avoid it when choosing products, if you want to know more, you can consult us online, we will sincerely serve you!