| 摘要 |
A method to manufacture an adhesive sheet having an ultraviolet-curable acryl adhesive agent layer having a high polymerization ratio per light amount, good productivity, and good balance of adhesive performance such as retention force at high temperatures, is provided. The method to manufacture an adhesive sheet includes: a coating process of an ultraviolet-curable acryl adhesive composition including at least a monomer component containing (meth)acrylic acid alkyl ester and a photo polymerizable initiator, and a forming process of an adhesive layer by radiating ultraviolet to cure the ultraviolet-curable acryl adhesive composition. An ultraviolet lamp to radiate ultraviolet in the forming process of the adhesive layer is an LED lamp, and the ultraviolet is radiated intermittently. The light period of radiating the ultraviolet is from 1x10 ^-3-1 seconds, and the dark period of not radiating the ultraviolet is 0.1-20 times that of the light period. |
