| 摘要 |
PURPOSE: A both-sided sticker is provided to save a manufacturing cost and disposal cost of release papers to be wasted, and to prevent a curl phenomenon occurrence in production of stickers. CONSTITUTION: The sticker has a release paper(10), and two sheet composites(20) each having a sheet base(21), a printed layer(23) over one surface of the sheet base(21) and an adhesive layer(22) over the other surface of the sheet base(21), in which the adhesive layers(22) of the two sheet composites(20) are releasably attached to the opposite sides of the release paper(10), respectively. The release paper(10) is coated with polyethylene and silicone. The sheet base(21) is one of art paper, vellum paper, board paper, etc. The adhesive layer(22) comprises pressure sensitive adhesives. Since the sticker has two sheet composites having the same physical properties on its both sides of the release paper with the same coating layers on both surfaces, the curl phenomenon is prevented, thereby increasing printing speed being proportioned to productivity.
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