| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaluation method of the processabilities of a pressure-sensitive adhesive sheet capable of judging the processabilities of the pressure-sensitive adhesive sheet even if the processing test of the pressure-sensitive adhesive is not actually carried out on a pressure-sensitive adhesive label manufacturing line. SOLUTION: In the evaluation method of the processabilities of the pressure-sensitive adhesive sheet obtained by laminating a base material, a pressure-sensitive adhesive and a peelable sheet in this order, a slit is formed in a laminate which comprises the base material laminated on the peelable sheet and the pressure-sensitive adhesive at an arbitrary position from the direction vertical to the surface of the base material to partially cut the laminate on the peelable sheet or to bisect the same. Thereafter, partially cut or bisected one laminate is peeled from the peelable sheet and, on the basis of the size of the stringing area of the pressure-sensitive adhesive in the cross-sectional peeled part of the peeled laminate, the processabilities are evaluated. COPYRIGHT: (C)2007,JPO&INPIT
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