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    • 2. 发明公开
    • RELEASE SHEET
    • 发表
    • KR20070098583A
    • 2007-10-05
    • KR20070029948
    • 2007-03-27
    • LINTEC CORP
    • NISHIDA TAKUOMIYATA SOUSUGISAKI TOSHIO
    • B32B7/02B32B25/04
    • C09J7/403C09J7/401C09J2409/005C09J2461/005C09J2475/005Y10T428/24355
    • A release sheet is provided to secure good releasability from an adhesive layer and release stability by controlling surface roughness of a substrate or an underlayer as a surface contacted with the adhesive layer. A release sheet is formed by directly laminating a rubber release layer on a substrate or through an underlayer. The average roughness of a center line of the surface of the substrate or the underlayer coming into contact with the rubber release layer is below 0.06 micron meters and the thickness of the rubber release layer is 0.01~5 micron meters. The rubber release layer is cured by irradiating active energy rays such as UV(Ultraviolet) rays and made of polybutadiene or polyisoprene. The underlayer is made of alkyd resin or urethane resin and the thickness is over 0.05 micron meters.
    • 提供了一种剥离片,以通过控制作为与粘合剂层接触的表面的基底或底层的表面粗糙度来确保从粘合剂层获得良好的剥离性和释放稳定性。 剥离片通过在基材上或通过底层直接层压橡胶剥离层而形成。 与橡胶剥离层接触的基材或底层的表面的中心线的平均粗糙度低于0.06微米,橡胶剥离层的厚度为0.01〜5微米。 通过照射紫外线等活性能量射线,由聚丁二烯或聚异戊二烯制成橡胶剥离层。 底层由醇酸树脂或聚氨酯树脂制成,厚度超过0.05微米。