| 摘要 |
Provided in the present invention are a white porous polyester film, which exhibits approximately 94-100% of a reflection rate and approximately 120-130% of the degree of white color. The purpose of the present invention is to solve a problem of the conventional technology, which is difficult to control the evenness of a pore, has the declined mechanical properties, and has a low reflection rate. The manufacturing method of white porous polyester film comprises the steps of: mixing a porous polystyrene bead, an inorganic particle, and other additives; manufacturing the mixture in a sheet form; and elongating and manufacturing the same. |
