Why do blow molding products fade
Many people say that blow molding processing products are very good, but Xiaobian found that some people echo blow molding processing products will fade, so blow molding processing products have been questioned, today, Kunshan blow molding processing manufacturers to introduce why blow molding processing products fade? Answer the question on everyone's mind.
The fading of blow molding products is often caused by humans, mainly divided into the following reasons:
1, acid and alkaline resistance
The fading of blow molding products is often caused by the chemical resistance of the coloring agent, such as molybdenum chromium red resistant to dilute acid, but active to alkali, cadmium yellow is not acid resistant, which seriously affects the coloring effect of the coloring agent and induces fading.
2. Heat resistance
This is very well understood, heat resistance refers to the degree of pigment discoloration and fading at high temperatures, for the coloring agent pigments, organic pigments will change the molecular structure at high temperatures, causing fading consequences; Inorganic pigments, on the other hand, are relatively heat-resistant and more stable.
3, light resistance
Poor light resistance of coloring agent will directly lead to fading, many of the products of blow molding processing are outdoor products, so light resistance is the first requirement, general occupational rules, outdoor product light resistance should not be less than 6 levels, is the general selection of 4-5 levels of internal products.
4, antioxidant
Some inorganic pigments dissolve macromolecules or undergo other modifications after oxidation and gradually fade, which is a process of high temperature oxidation in production and processing, and oxidation in the event of strong oxidants. When the lake, formamide paste and iron oxide yellow are mixed, the redness will gradually decrease.
Why do blow molding products fade? The above small series lists several relevant elements, hoping to help you, in the selection of products to try to prevent, if you want to know more, you can consult us online, we will sincerely serve you!
