Disclosed is a film or panel having excellent near-infrared absorbability or, that is, excellent near-infrared shieldability, and having a high degree of visible ray transmittance and good color tone.
To produce the near-infrared-absorbing film or panel having good color tone while the near-infrared-absorbing dye to be therein is kept stable, the dye and the binder resin for the dye are specifically selected, and the production method is also specifically selected. In addition, for the purpose of producing the film or panel while the dye to be therein is kept stable and for the purpose of making the film or panel have additional functions such as electromagnetic radiation absorbability, the film or panel is made to have a multi-layered structure.
本发明公开了一种薄膜或面板,它具有极佳的近红外吸收性,即极佳的近红外屏蔽性,并具有较高的可见光透射率和良好的色调。
为了生产色调良好的近红外吸收薄膜或面板,同时保持其中的近红外吸收
染料稳定,需要特别选择
染料和
染料的粘合剂
树脂,并特别选择生产方法。此外,为了在生产薄膜或面板的同时使其中的
染料保持稳定,并使薄膜或面板具有电磁辐射吸收性等附加功能,薄膜或面板被制成多层结构。