| 摘要 |
PROBLEM TO BE SOLVED: To provide a spontaneously winding adhesive tape which spontaneously winds, whose wound body obtained by spontaneous winding after the tape is adhered to an adherend can be recovered easily from the adherend surface without requiring separate preparation of tools or equipment.SOLUTION: Provided is an adhesive tape which winds spontaneously by irradiation with an energy ray and heating. The adhesive tape comprises a substrate layer and an adhesive layer. When a release paper is pasted on a glue surface of the adhesive layer, an energy ray is irradiated from the release paper side, and thereafter the release paper is peeled, an arithmetic mean surface roughness Ra of the glue surface of the adhesive layer after energy ray curing is 31.5 nm or more and, when length in a winding direction is denoted by L mm, and a diameter of a wound body formed after the spontaneous winding by r mm, r/L is 0.0001 to 0.999. |
