This invention relates to pressure-sensitive adhesive tape bearing a directly printable backsize coating.
Non-fibrous, film tape backings have often been found to be difficult to print directly. This invention provides a directly printable backsize coating composition for a pressure-sensitive adhesive tape comprising a layer of a low adhesion backsize compound, an ink anchoring resin, and a primer resin wherein the surface free energy of the ink anchoring resin and the primer are within about 10 percent of the surface free energy of the lower adhesion backsize compound. The backsize coating exhibits excellent properties for direct printing thereon, retention of the printed image, and satisfactory release characteristics. The tape of this invention functions in a dual capacity as a packaging tape as well as a printed identification or instructed message.
本发明涉及带有可直接印刷背胶涂层的压敏胶带。
人们经常发现,非纤维薄膜胶带背胶难以直接印刷。本发明提供了一种用于压敏胶带的可直接印刷背胶涂层组合物,该组合物包括一层低附着力背胶化合物、油墨锚固
树脂和底胶
树脂,其中油墨锚固
树脂和底胶的表面自由能在低附着力背胶化合物表面自由能的 10%以内。背胶涂层在直接印刷、保留印刷图像和令人满意的剥离特性方面表现出优异的性能。本发明的胶带具有双重功能,既可作为包装胶带,也可印刷标识或指示信息。