| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily unstick sticking at overlapping faces of a plastic case that is made up by sticking the overlapping faces with hot-melt adhesive by a method wherein sticking at the overlapping faces is made with a plurality of independend sticking parts arranged in a line along the longitudinal direction of the overlapping faces. SOLUTION: A plastic case 100 is made up by bending a sheet formed in a specified shape and by sticking overlapping faces 2 with a plurality of sticking parts 4 each approximately in a circular shape. The sticking parts 4 are formed at specified intervals in a line along the longitudinal direction X of the overlapping faces 2, and joining is made quickly with hot-melt adhesive supplied to the overlapping faces 2. The area for the sticking parts at both ends is set larger than the area for other sticking parts. The strength at the sticking parts 4 is desirable to be set below the adhesive strength peelable by hand, namely the adhesive strength per one sticking part 4 is desirable to be T-type peel test value of 5-30 N/25 mm corresponding to JIS K6854 (tensile speed of 200 mm/min.), and especially desirable to be 10-25 N/25 mm.</p> |
