Fluorescent whitening agent 351 Manufacturer

Different plastic products fit with different plastic fluorescent whitening agents. It is tenable to consult professional manufacturer to find the suitable optical whitening agent for the certain product because manufacturer has a reliable technology and quality.

Optical brighteners have been used in the field of textile fibers for nearly 70 years.

Optical Brightener OB-1 For PET And RPET Fiber,Polyethylene terephthalate,RPET as known as PET waste raw materials, also known as Coke bottle green material,is a kind of renewable and environment-friendly material. By using recycled plastic bottles, such as from plastic bottles to plastic bottles, 100% of the recycled materials can be recycled into RPET fibers, effectively reducing waste, protecting the Earth’s environment.in order to increase the added value of the RPET plastic waste material in the plastic recycling process, improve the whiteness and brightness of RPET fiber, it is necessary to add optical brightener OB-1 for plastic into the recycled raw materials in the plastic recycling enterprises.

Fluorescent whitening agent FP-127 is a special product for plastic foaming. FP-127 has higher whiteness value, less addition amount, and has obvious effect on whiteness and brightness of plastic products.The invention has obvious effect on improving the whiteness and brightness of the plastic products, and solves the problem that the traditional whitening agent is easy to precipitate yellowing.

Staple fiber can be divided into primary polyester staple fiber and regenerated polyester staple fiber. The regenerated polyester staple fiber is made from recycled PET bottles, RPET, etc. after drying, melting, spinning and cutting, commonly known as “small chemical fiber.”.The white polyester staple fiber can be produced by adding 0.02%-1% FBA fluorescent brightening agent OB-1 in the blending process, and the colored polyester staple fiber can be produced by adding right amount of color masterbatch to the colored polyester staple fiber.

The plastic raw material itself has a great influence on the whitening effect of recycled plastics. In addition, various plastic additives also play an important role.