| 摘要 |
PURPOSE:To provide the title paper which does not stain a drum for photosensing during copying and is free from top or released paper curling and which comprises a pressure sensitive adhesive paper for copy composed of a top paper and a released paper bonded together through an adhesive layer and, provided on an end face thereof, a particular radiation-curable layer. CONSTITUTION:A radiation-curable compsn. is prepd. by mixing a dye (A), pref. a fluorescent dye being colorless and transparent under visible rays [e.g., 2,5-bis(5-tert-butylbenzoxazolyl (2) thiophen] without a solvent, radiation-curable mixture (B) comprising a radiation-curable prepolymer (a) (e.g., urethane acrylate-type oligomer), a radiation-curable monomer (b) having an intramolecular, radiation-curable carbon-carbon double bond (e.g., trimethylolpropane acrylate) and optionally an acrylate compd., a polymn. initiator, etc. (c). The compsn. is applied to an end face of a pressure sensitive adhesive paper for copy composed of a top paper 2 and a released paper 3 bonded together through an adhesive layer 4. Then, radiation is applied to cure the compsn. thereby forming a radiation-cured layer 5 having a glass transition temp. of 50-200 deg.C. Thus, the title pressure sensitive adhesive paper 1 is prepd.
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