| abstract |
An ink jet recording head sealing tape that has sufficient adhesive strength, suppresses an increase in adhesive strength due to changes over time, suppresses deterioration of an adhesive due to an attack of an ink component, and reduces components eluted from the adhesive. I will provide a. In a sealing tape for an ink jet recording head that is releasably bonded to a chip surface on which a discharge port is formed, The sealing tape has a base material layer, and an adhesive layer on the base material layer, The adhesive layer is (1) (A)-(B)-(A) type block copolymer having no unsaturated carbon bond, comprising (a) a vinyl aromatic compound unit and (b) an olefinic hydrocarbon unit: 70-100% by mass, ((A): (a) as a unit, (B): (b) as a unit) (2) Polyolefin: 0 to 30% by mass, A seal tape for an ink jet recording head, wherein the content of the unit (a) in (1) is 10 to 30% by mass. [Selection] Figure 3 |