To provide a pressure-sensitive adhesive sheet excellent in inkjet printing, especially having good ink absorption, color development after printing, and the like, satisfying both adhesiveness and releasability as paper for confidential post card and no transference of ink.
This pressure sensitive adhesive sheet has an adhesive layer at least on one surface of a base sheet. The adhesive layers are adhered by pressurizing in a state of facing the adhesive layers to each other, while the adhered layers are mutually releasable. The adhesive layer comprises amorphous silica produced by gel process and having ≤3.0 μm average particle size and at least one resin selected from natural rubber, modified natural rubber, synthetic rubber, ethylene-vinyl acetate copolymer resins, styrene-vinyl acetate copolymer resins, acrylic ester-based resins, ethylene-vinyl acetate/acrylic ester- based complex resins, vinyl chloride-based resins and vinylidene chloride-based resins.
| JPH10236030 | SEALED LETTER |
TACHIBANA HIROYASU
SUZUKI HIDEAKI
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