| 摘要 |
PROBLEM TO BE SOLVED: To prepare the subject tape securing punching of an excellent green sheet and cutting processability, and preventing dimensional variation of the green sheet by using a low specific gravity polyethylene terephthalate film as a base material film. SOLUTION: This self-adhesive tape has a re-peelable pressure-sensitive adhesive layer on a polyester film base material surface having a low specific gravity polyester layer. Preferably, the base material has biaxially oriented polyester layers on both surfaces of the low specific gravity polyester layer. The re-peelable self-adhesive tape is obtained by, e.g. using a market-sold polyethylene terephthalate film as a base material film and coating an acrylic pressure-sensitive adhesive (obtained by adding 1 pt.wt. of an isocyanate hardener to 100 pts.wt. of a copolymer composed of 1wt.% of acrylic acid with 99wt.% of butyl acrylate) on one surface of the film in a thickness of 2μm.
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