| 摘要 |
The present invention relates to a manufacturing method of an optical transparent hard coating film. The manufacturing method of an optical transparent hard coating film according to the present invention comprises: a step of coating an ultraviolet curable resin composition for hard coating on a substrate film; and forming a hard coating layer by curing the coated composition using ultraviolet rays after drying the coated composition, wherein the ultraviolet curable resin composition comprises: 100 parts by weight of 6 - 9 functional urethane acrylate oligomer; 40 - 80 by weight of monofunctional acrylate monomer; 60 - 100 parts by weight of multifunctional acrylate monomer; 5 - 20 parts by weight of a photopolymerized adhesion improvement component; 1 - 10 parts by weight of a photoinitiator; and 100 - 130 parts by weight of a solvent. According to the present invention, the curing contraction of the hard coating layer is reduced so that the generation of curls in the transparent hard coating film can be reduced; and an adhesive property between the substrate film and the hard coating layer is improved by the photopolymerized adhesion improvement component so that the hard coating layer cannot be easily separated from the substrate film, and, as a result, the transparent hard coating film can be used for a long time. |
