초록 ▼

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 there

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.

대표청구항 ▼

A thermosensitive-recording-type label sheet comprising: a support material; a thermosensitive coloring layer formed on the front side of said support material, said thermosensitive coloring layer comprising a leuco dye and an acidic material capable of coloring said leuco dye when heat is applied t

A thermosensitive-recording-type label sheet comprising: a support material; a thermosensitive coloring layer formed on the front side of said support material, said thermosensitive coloring layer comprising a leuco dye and an acidic material capable of coloring said leuco dye when heat is applied thereto; a barrier layer formed on the back side of said support material opposite to said thermosensitive coloring layer, said barrier layer having a thickness of from 0.3 to 20 mm, said barrier layer comprising a water-soluble polymeric material and from 0.05 to 5 wt. % of a water-repellent wax or wax-like material based on the total weight of said barrier layer, said barrier layer being capable of preventing intrusion into said thermosensitive coloring layer of materials which may discolor said thermosensitive coloring layer; and an adhesive layer formed on said barrier layer.