| 摘要 |
A thermosensitive-recording-type label sheet comprising a support material; a thermosensitive coloring layer formed on the front side of the support material, the thermosensitive coloring layer comprising a leuco dye and an acidic material capable of coloring the leuco dye when heat is applied thereto; and a barrier layer formed on the back side of said support material, opposite to the thermosensitive coloring layer, the barrier layer comprising a water-soluble polymeric material and a water-repellent wax or wax-like material and capable of preventing intrusion into the thermosensitive coloring layer of materials which may discolor the thermosensitive coloring layer; and an adhesive layer formed on said barrier layer. In this label sheet, the wax or wax-like material contained in the barrier layer plays an important role of protecting the thermosensitive coloring layer during the production of the label sheet as well as while in use. |
