| 摘要 |
PROBLEM TO BE SOLVED: To prevent the bleeding which occurs along with a change with lapse of time by adopting the constitution obtd. by having a release agent layer on the surfaces side of a thermal base material, providing the rear surface side with an acrylic hot melt type tacky adhesive layer and forming the tacky adhesive layer of a first layer to a film-like light-gaged layer and the second layer to the thickness of general tacky adhesive layers. SOLUTION: This thermal paper has the release agent layer 2 consisting of silicon, silica (silicon dioxide), etc., on the front surface side of the thermal base material 1 and is coated with the acrylic hot melt type tacky adhesive layers 3 of a UV curing type formed in two layers on its rear surface side. While the tacky adhesive layers 3 may be a single layer, these layers are preferably two layers and the first layer successively from the base material side is formed as the film-like tacky adhesive layer 3a of a light gage of about 2 to 4μso as to correspond to undercoating and the tacky adhesive layer 3a of the second layer is formed to a thickness of about 20p which is the thickness of the general tacky adhesive layers. The plascticity from the thermal base material 1 side to the glue surface may be shut off, the penetration of the tacky adhesive layer 3b of the second layer to the tacky adhesive layer may be prevented and the bleeding may be prevented according to such constitution.
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