Topic Before supplying to the restoration device, the babbling phenomenon evaluation device which evaluates the heat seal condition babbling phenomenon of pin hole and the like such as the through hole not occurring beforehand is offered.SolutionsBeing movement possible in the direction which passes the position where the hot blast nozzle 10 which possesses the pore 11 where the heating wind is transmitted and the heating wind hits, the sample paper material which possesses resin formation on both sides of paper base as an evaluation target (the lamination material for the paper container) supporting 22, it has with the paper material holder 21 which, it locks it heats sample paper material 22, by applying the hot blast which is transmitted from the pore 11 of the hot blast nozzle partly it evaluates the generation of the babbling phenomenon in the heating field. Choice figure Drawing 1
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