To provide a pressure-sensitive adhesive sheet having excellent surface strength and slightly reducing adhesive strength by transferring a silicone oil sticking to a heat roll to the surface of the pressure-sensitive adhesive sheet when printing variable information, etc., with a laser printer, reducing a malodor by heating and further without causing toner blocking, turning bar staining and impression cylinder barrel staining.
The pressure-sensitive adhesive sheet has a pseudo-adhesive layer on at least one surface of a substrate sheet and makes the pseudo-adhesive layers releasably adhere by opposing mutual pseudo-adhesive layers and carrying out a pressurizing treatment. The pressure-sensitive adhesive sheet is characterized as comprising an adhesive component and a synthetic silicate in the pseudo-adhesive layer. Furthermore, the synthetic silicate has preferably 70-1,000 m
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Yasutake Fujiki
Haruo Konishi
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Masatake Shiga
Tadashi Takahashi
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai