摘要 |
<p>A temperature-controllable roll 1 serves as a heat-sealing tool on the circumferential surface of which a number of plastics film webs 14, 15, 16 are heat-sealed to one another with the application of pressure and heat. The plastics film webs travel at equal or different distances from one another onto the circumferential surface of the roll 1 and are guided via pressure rolls 2, 3, ... 7. The said pressure rolls bear under pressure on the circumferential surface of the roll 1. The plastics film webs pass through the nips between the pressure rolls and the roll 1. The plastics film webs have alternately have no heat-sealing layer or have on one or both sides heat-sealing layers which are fused by the effect of heat, so that heat-sealing of the laminated plastics film webs occurs on the circumferential surface of the roll 1. …<IMAGE>… </p> |
申请人 |
HOECHST AG, 6230 FRANKFURT, DE |
发明人 |
COUTANDIN, JOCHEN, DR., 6536 LANGENLONSHEIM, DE;KASTL, ERNA, 6272 NIEDERNHAUSEN, DE;ROHLEDER, SABINE, 6108 WEITERSTADT, DE |