Nitto-denko Corporation

Osamu Degawa

Hiroichi Ukei

Yoshio Nakagawa

Shinsuke Ikishima

Takeshi Igarashi

Toshitaka Suzuki

Masakazu Kato

Yasuhiko Kawaguchi

Masakazu Morimoto

Nao Wakayama

Takuro Kanezaki

A die coateras a coating member directly applies an adhesive resin G to a joining portion of a workpiece W by a predetermined width while a holding tableholding the workpiece W placed thereon moves. A reinforcing substrate T supplied from an original master roll is joined to the resin G applied to the workpiece W while being pressed by a joining roller, and the reinforcing substrate T is cut by a predetermined length. That is, an adhesive sheet is directly formed on the workpiece W.

Adhesive sheet joining method and adhesive sheet joining apparatus

A pasting roller has brush bristles planted in a surface thereof in straight lines or spirally to form a plurality of rows at predetermined intervals on the roller surface. An adhesive sheet S is pasted to work while moving the pasting roller and the work, which is the recipient, relative to and crossing each other. In this pasting process, a rotating speed of the pasting roller is adjusted according to a surface configuration of the work to render the pressure on the adhesive sheet constant.

Adhesive sheet pasting method and adhesive sheet pasting apparatus

While a transporting unit transports an adhesive sheet attached to a separator larger than the adhesive sheet, a chuck member on a tip of a swing arm of a separating unit holds a portion of the separator protruding from an end of the adhesive sheet. Under such a condition, the chuck member moves in a direction crossing a transportation direction of the adhesive sheet, and the transporting unit moves in the transportation direction in synchronization with the chuck member while folding back the separator at an end of a supporting plate contacting the separator as a starting point. Accordingly, the separator is separated from the adhesive sheet. The transporting unit transports while holding the adhesive sheet with the separator separated therefrom to join the adhesive sheet to a workpiece.

A release liner formed of a polypropylene resin sheet that can be highly recyclable and that can provide an excellent performance in a wide range of operating temperature is provided. A release-lined pressure-sensitive adhesive (PSA) sheet constituted with the release liner is also provided. A release-lined PSA sheetaccording to the present invention comprises a PSA sheethaving a supportand a PSA layer; and a release linerplaced on the PSA layer. The release linerhas a layered configuration formed of a layer Aformed of a polypropylene resin composition containing a nucleating agent; and a layer Bformed of a polypropylene resin composition containing no nucleating agent; wherein the two layers stacked to form the thickness of the liner.

Pressure-sensitive adhesive sheet with release liner

A release liner formed of a highly recyclable polypropylene-based resin sheet and capable of assuring excellent operability over a wide range of environmental temperature is provided. A pressure-sensitive adhesive (PSA) sheet with release liner is also provided. A PSA sheet with release liner according to the present invention comprises a PSA sheet including a support and a PSA layer; and a release liner formed of a polypropylene-based resin sheet which is obtained by molding into a sheet a polypropylene-based resin composition containing a nucleating agent. The PSA sheet with release liner provides excellent operability even in a high temperature environment of, for example, about 35&#xb0; C. The PSA sheet with release liner is preferably applicable in an attachment operation wherein the PSA sheet is attached to an adherend while the liner is released from the PSA sheet.

A main body to be moved and operated along a workpiece includes a joining roller which elastically presses the supplied adhesive tape against a tape joining face of the workpiece, guide members which determine the position of the main body and maintain the posture of the main body with respect to the workpiece being engaged with the outer face of the workpiece at the opposite side of the tape joining face, a separator guide which is arranged to be opposed to a tape supply roller, and a tape guide which is arranged in the vicinity of the side where the adhesive tape is reeled out toward the separator guide. On the separator guide, a separator guide face is formed, which guides a separator st separated from the adhesive tape into a direction different from an adhesive tape joining direction.

Growing community of inventors

Ibaraki, Japan

Osamu Degawa