EXCELLENTLY RELEASABLE, DOUBLE-FACED PRESSURE-SENSITIVE ADHESIVE TAPE

摘要

PROBLEM TO BE SOLVED: To prepare the subject tape with a core material of a nonwoven sheet which tape causes no cutting and gives no remaining of an adhesive when the tape is released from a recyclable parts of metals or plastics. SOLUTION: This double-faced, pressure-sensitive adhesive tape with a core material of a nonwoven sheet is such one that the nonwoven sheet having a Manila hemp content of 70% or more and containing a strength improver is impregnated into a paper layer inner part with a pressure-sensitive adhesive which has a storage modulus G' at 70 deg.C of from 104 (Pa) or more to 105 (Pa) or less and a loss tangent tanδat 130 deg.C of 1 or less. The double-faced adhesive tape has a strength at a yielding point on the measurement of the tensile strengths in the flow direction and the cross direction, of 1.5-4 kg/20 mm, and an elongation to the yielding point of within 10%.