JP2018083090A5 - - Google Patents

Claims (9)

An adhesive cleaner comprising an adhesive tape having an adhesive surface on the first surface of the substrate,
The adhesive tape constitutes an adhesive tape roll wound with the adhesive surface facing outward,
The pressure-sensitive adhesive tape comprises a first layer composed of an adhesive and a second layer composed of a viscoelastic material on the first surface of the base material,
Here, the second layer is partially provided on the first layer,
The first layer is a rubber-based pressure-sensitive adhesive layer,
The viscoelastic material constituting the second layer is an acrylic viscoelastic material containing an acrylic block copolymer as a base polymer ,
The adhesive surface includes a first region where the first layer is exposed and a second region where the second layer is exposed, and the second region protrudes outside the adhesive tape roll from the first region. And
The adhesive tape roll, unwinding force F ₀ at 0 ℃ is less than 10 times the unwinding force F ₃₀ at 30 ° C., and the unwinding force F ₀ is less than 7N / 150 mm, the adhesive cleaner. An adhesive cleaner comprising an adhesive tape having an adhesive surface on the first surface of the substrate,
The adhesive tape constitutes an adhesive tape roll wound with the adhesive surface facing outward,
The pressure-sensitive adhesive tape comprises a first layer composed of an adhesive and a second layer composed of a viscoelastic material on the first surface of the base material,
Here, the second layer is directly provided on the first surface of the base material,
The first layer is a rubber-based pressure-sensitive adhesive layer,
The viscoelastic material constituting the second layer is an acrylic viscoelastic material containing an acrylic block copolymer as a base polymer,
The adhesive surface includes a first region where the first layer is exposed and a second region where the second layer is exposed, and the second region protrudes outside the adhesive tape roll from the first region. And
The adhesive tape roll has unwinding force F at 0 ° C. ₀ Unwinding force F at 30 ° C ₃₀ 10 times or less and the rewinding force F ₀ Is an adhesive cleaner with 7N / 150mm or less. The adhesive cleaner according to claim 1 or 2 , wherein a plurality of the second regions are formed at intervals in the width direction of the adhesive tape. The pressure-sensitive adhesive cleaner according to any one of claims 1 to 3, wherein the second region is formed in a linear shape extending in a longitudinal direction of the pressure-sensitive adhesive tape. The product of the cross-sectional area A [mm ² ] of the second layer in the cross section along the width direction of the adhesive tape and the weight fraction R [%] of the elastomer component in the second layer is 2.5 or less. The pressure-sensitive adhesive cleaner according to any one of claims 1 to 4 . The pressure-sensitive adhesive cleaner according to any one of claims 1 to 5 , wherein a plurality of the second layers are arranged in a line extending in the longitudinal direction of the pressure-sensitive adhesive tape at intervals in the width direction of the pressure-sensitive adhesive tape. .   The adhesive cleaner according to any one of claims 1 to 6, wherein the second layer contains a filler. The said adhesive tape is an adhesive cleaner as described in any one of Claim 1 to 7 which has a cut | interruption extended in the direction which cross | intersects the longitudinal direction of this adhesive tape. Wherein the adhesive tape within its inner periphery 1/4 laps from the winding outer peripheral end, the rail pulling prevention portion tackiness of the pressure-sensitive adhesive tape is suppressed is provided, of claims 1 to 8 The adhesive cleaner as described in any one of Claims.