A method of producing a packaging material
作者： Nils Toft , Rolf Lasson
DOI:
关键词: Seal (mechanical) 、 Structural engineering 、 Mechanical engineering 、 Layer (electronics) 、 Engineering
摘要: A method of producing a packaging laminate (10) in which web is provided with through-going holes (2) are covered on one side first outer layer (3) the and second (4) other such manner that layers (3 4) permanently sealed to another within regions opening contour holes. In order ensure permanent seal between two 4), subjected, after application but prior layer, so-called flame-treating whereby accessible parts activated or polarised by means more gas flames directed at web.
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