What are the main raw materials for BOPP synthetic label paper?

The main raw material for BOPP synthetic label paper is polypropylene (PP) resin, especially 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. The following is a detailed analysis of the main raw materials for BOPP synthetic label paper:

1、 Characteristics of polypropylene resin

Polypropylene resin is a thermoplastic with excellent physical properties and chemical stability. It has high tensile strength, impact strength, and wear resistance, as well as good thermal stability and cold resistance. These characteristics make polypropylene resin an ideal raw material for making BOPP synthetic label paper.

2、 Raw material selection and proportioning

When making BOPP synthetic label paper, in addition to the main raw material polypropylene resin, it is also necessary to add some functional fillers and additives to improve the performance of the paper and meet specific application requirements. For example, functional fillers such as pigments and dyes can be added to give paper specific colors and functional properties; At the same time, antioxidants, lubricants, fluorescent whitening agents, titanium dioxide and other additives can be added to improve the processing performance of paper and the performance of the final product.

3、 The influence of raw materials on the properties of BOPP synthetic label paper

The content and quality of polypropylene resin have a significant impact on the performance of BOPP synthetic label paper. High content of isotactic polypropylene can ensure the tensile strength and physical properties of the film, making the label paper more durable and tough. Meanwhile, the addition of functional fillers and additives can further improve the printing performance, adhesion, and waterproof performance of label paper.

In summary, the main raw material for BOPP synthetic label paper is polypropylene resin. Through reasonable selection and proportioning of raw materials and advanced production processes, BOPP synthetic label paper with excellent performance and meeting various application needs can be produced.