FELT-BASED FOUR-SIDE-PROCESSED MATERIAL AND METHOD FOR PRODUCING SAID PROCESSED MATERIAL

    公开(公告)号:US20240271011A1

    公开(公告)日:2024-08-15

    申请号:US18570523

    申请日:2022-06-23

    IPC分类号: C09J7/29

    摘要: There is provided a technique by which when using a felt-based four-sides-processing material having a release paper-attached pressure-sensitive adhesive layer, not only a worker can release the release paper from a pressure-sensitive adhesive layer quickly and favorably but also breakage of a base material made of rock wool can be suppressed. There is provided a felt-based four-sides-processing material having a pressure-sensitive adhesive layer having a continuous pressure-sensitive adhesive region provided on any of flat surfaces of a base material in a longitudinal direction of the flat surface and release paper pasted to the pressure-sensitive adhesive layer, wherein the base material is a laminate obtained by laminating felt-like rock wool in a thickness direction, the laminate having a thickness of 3 to 50 mm and a width of 5 mm to 10 cm and having a long, rectangular column shape, the pressure-sensitive adhesive layer has a configuration such that the continuous pressure-sensitive adhesive region is provided on the flat surface of the base material where the pressure-sensitive adhesive layer is provided in a width narrower than a width of a short side of the base material, and a non-pressure-sensitive adhesive region where a pressure-sensitive adhesive is not present is provided along the whole of at least one edge in the longitudinal direction, and the release paper has the same size as the flat surface of the base material. There is also provided a method for producing the felt-based four-sides-processing material.