Adhesive tape, adhesive tape for fixing electronic device component , and transparent adhesive tape for optical use

The present invention aims to provide an adhesive tape excellent in resistance against sebum to be able to maintain its adhesive force even when applied to a part frequently touched with human hands, and an adhesive tape for fixing electronic device component and a transparent adhesive tape for optical use each provided with the adhesive tape. The present invention relates to an adhesive tape including an adhesive layer containing an acrylic adhesive, the adhesive layer having a swelling ratio of 100% or more and 130% or less after immersion in oleic acid under the conditions of a temperature of 60 DEG C. and a humidity of 90% for 24 hours. 本发明的目的在于，提供一种对于皮脂的耐性优异、即使用于人手频繁触碰的部分也能够维持粘合力的粘合带；以及由该粘合带构成的电子设备部件固定用粘合带、光学用透明粘合带。本发明是一种具有由丙烯酸类粘合剂形成的粘合剂层的粘合带，上述粘合剂层在60℃、湿度90％的条件下在油酸中浸渍24小时后的溶胀率为100％以上且130％以下。