Provided is a planar paper for an adhesive tape, and an adhesive tape utilizing such planar paper as a backing, which has an elongation sufficient to allow the adhesive tape to be favorably adhered to an adherend surface without being accompanied by any lift and separation, but with consistently conforming to the curved surfaces and/or the rough surfaces; which is capable of providing a clear painting line left in a portion of a painted layer required in automobiles; which is capable of being easily cut by hand without requiring any tool as a blade; and which is also excellent in handleability. The planar paper comprises a polyvinyl alcohol-series fiber having a fiber breaking temperature in water of 92 to 125°C, a tenacity of 0.5 to 3.5 cN/dtex at 10% elongation, and a breaking elongation of 17 to 60%.
本发明提供了一种用于粘胶带的平面纸,以及一种使用这种平面纸作为底纸的粘胶带,它具有足够的伸长率,使粘胶带能够很好地粘在被粘物表面上,而不会出现任何翘起和分离现象,并且能够始终贴合弯曲表面和/或粗糙表面;它能够在汽车所需的涂漆层的一部分留下清晰的涂漆线;它能够很容易地用手切割,而不需要任何刀片工具;它还具有很好的可操作性。这种平面纸由聚
乙烯醇系列纤维组成,其在
水中的纤维断裂温度为 92 至 125°C,在伸长率为 10%时的韧性为 0.5 至 3.5 cN/dtex,断裂伸长率为 17 至 60%。