If there is a plastic products fade, what could be the cause?

Wholesale dried fruit plastic bottle manufacturer, plastic light fastness of the colorant directly affect the products fade, the glare of outdoor products, the light of colorants used fast level requirement is an important index, light level is poor, products in use will soon fade. So that is why the anti-glare board, such as highway water horse, etc. , in a few years later after the sun exposure will become light in color but generally in blow molding, will join quantitative resistance to UV components, to ensure the durability of the product color retention time. Thermal stability of the pigment refers to the processing temperature pigment thermal weightlessness, the degree of discoloration, faded. Inorganic pigment ingredients for metal oxides and salts, good thermal stability, high heat resistance. While organic compound paint under a certain temperature will occur the change of the molecular structure and a small amount of decomposition. Actually we need in the production process, if it is need high temperature heating plastic products, you need to choose more heat resistant properties of pigment, to ensure that the color change color, fade, ensure the overall appearance of the product. Some organic pigments in the degradation of macromolecules in the aftermath of the oxidation or other changes, and gradually fade, the process is a process of high temperature oxidation, the second is in strong oxidizing agents such as chromium Huang Zhong chromic acid radical oxidation. Lake, after using azo pigment mixed with chrome yellow, red will gradually subside. Fade colored plastic products and chemical character of the colorant quotiety of acid and alkali, resistance to oxidation. Such as chromium molybdenum red resistance to dilute acid, but sensitive to alkali, cadmium yellow don't acid, these two pigments and phenolic resin for some colorants have strong reducing effect, the serious influence of colorant heat resistance, weather resistance and fade. MORE + recommended product bottle PET health products bottle PET health products bottle PET health products bottle PET care bottle PET health products bottle PET health products bottle PET health products square bottle PET health products plastic PET health products bottle PET health products bottle PET health products bottle PET health products' Bowling bottle 】 PET health products bottles [ New arrival] Pet health products bottles 【 Preview 】 Acrylic health food bottle PS supplement bottle PS health food bottles of special tear cover cover