The main raw materials for producing BOPP thermal sensitive synthetic paper include the following:
1、 Polypropylene (PP) resin
Type: Mainly using isotactic polypropylene, its content needs to reach a high standard, such as 95%~97%, to ensure the tensile strength and physical properties of the film.
Function: Polypropylene resin is the main component of BOPP thermosensitive synthetic paper, which provides the basic physical and chemical properties of the film, such as strength, toughness, chemical resistance, etc.
2、 Functional fillers
Types: including pigments, dyes, etc.
Function: These fillers can be added to polypropylene resin as needed to give paper specific colors and functional properties. For example, pigments and dyes can provide a wide range of color choices, making BOPP thermal synthetic paper have better visual effects.
3、 Additives
Types: including antioxidants, lubricants, fluorescent whitening agents, titanium dioxide, etc.
Function: The addition of additives can improve the processing performance of paper and the performance of the final product. For example, antioxidants can extend the service life of products and prevent oxidative degradation; Lubricants can improve the fluidity of materials and reduce processing difficulty; Fluorescent whitening agents can improve the whiteness and brightness of products; Titanium dioxide can provide excellent coverage and color stability.
In summary, the main raw materials for producing BOPP thermosensitive synthetic paper include polypropylene resin, functional fillers, and additives. The precise ratio and fine processing of these raw materials together determine the quality and performance of the final product.