| 摘要 |
<p>The present invention relates to a manufacturing process of thermal-acoustic insulating panels or mats with sandwich structure made of two external smooth sheets (4a, 4b) and at least one internal layer (4c) with alveolar structure that creates a closed series of air bubbles (5) when sealed to the two layers (4a, 4b), process being characterised in that sealing lines (L1) are obtained on each panel to seal the layers (4a, 4b, 4c) in order to prevent the lateral emission of the air contained in the grid of channels (6) that surround the air bubbles (5) of the panel (1).</p> |
