Pet whitening agent

Polyester material is a common plastic material, which is used in transparent cosmetic bottles and medical polyester bottles. It is the general name of thermoplastic saturated polyester represented by PET. In the field of packaging, the development of polyester packaging containers is the most attractive. Now more than 20% of pet has been used in packaging materials, and it is increasing year by year. Packaging industry has become the second largest user of pet, second only to synthetic fiber.

 

PET plastic

 

Because PET plastic is widely used, and most of pet products are disposable consumer goods, a lot of waste PET materials are produced. Some visionary owners recycle pet plastics at a low price and reproduce them through certain processes, which not only solves the problem of environmental pollution, but also creates huge economic value.

 

However, compared with pure PET raw materials, the recycled materials not only show obvious yellow, but also affect the transparency of the materials. In order to make the recycled plastic products look like new, pet whitening agent (OB) is usually added in the process of PET plastic processing to enhance the whiteness and brightness of the products.

 

Whitening Agent OB

 

The Whitening Agent OB has a wide range of applications, not only in paint and ink, but also in plastics. This whitening agent can not only improve the whiteness and brightness of PET materials, but also increase the transparency of PET materials, especially suitable for transparent PET plastics. Fluorescent whitening agent ob can absorb ultraviolet light in natural light, and then emit blue violet fluorescence, because yellow and blue are complementary colors, so when the blue light and the yellow light of the article, the article will look whiter and brighter. The whitening agent ob can not only protect the product from UV damage, but also extend the service life of the product.