| 摘要 |
<p>A removable self-adhesive device consisting of a baseplate, optionally with fixing devices on the sides and/or face, with a strip of self-adhesive film stuck on the back with one end projecting to form a tab, so that the adhesive joint can be broken by pulling the strip. The plate (1) shows a low level of static and sliding friction against the adhesive strip (5), at least in the area (3A, 3B) near the projecting tab (6). Preferably the stripping force required at a pull-off angle of 60 degrees , preferably 90 degrees , is not more than 3 times, preferably twice, the force at an angle of 0 degrees . Preferably, this also applies to the part (3A, 3B) of the plate near the tab (6). Part (3A, 3B) has a low-energy plastic surface consisting of fluoropolymer, organosilicon polymer, or polyolefin based on polymers containing fluorine-containing segments, organosilicon polymer segments or polyolefin segments, or mixtures of such polymers, optionally with other polymers. Preferably, part (3A, 3B) has a surface tension of up to 37 mN/m, and is formed together with plate (1) as an integrated plastic injection moulding. The adhesive film is elastically or plastically flexible, with or without secondary carriers. The adhesion of the film is lower than its cohesion, its adhesive power largely disappears when it is stretched, and the ratio of pull-off force to ultimate tensile strength = at least 1:2.0.</p> |
