METHOD AND APPARATUS FOR SPLICING AT LEAST TWO SINMETHOD AND APPARATUS FOR SPLICING AT LEAST TWO SINGLE OR MULTIPLE LAYER MATERIALS COMPRISING AIR PERGLE OR MULTIPLE LAYER MATERIALS COMPRISING AIR PERMEABLE SOFT PAPER WEBS MEABLE SOFT PAPER WEBS

摘要

2079603 9116256 PCTABS00007 The invention relates to a method and apparatus for splicing at least two single or multiple layer materials comprising air permeable soft paper webs while retaining web tension during operation. The apparatus includes a first suction chamber (5) for retaining an end portion (3) of a new web (2) in trailing engagement against the first web (1) which is to be spliced, a second suction chamber (4) over which moves the web (1), which is to be spliced, as well as the forward end portion (3) of the new web (2) for splicing, a regulatable vacuum system for the suction chambers (4, 5), en embossing nip (6) placed downstream of the second suction chamber (4) for bonding together the webs (1, 2) kept together with the aid of controlled air passage through them, and a cutting means (7) for cutting off the moving web (1). Splicing takes place by vacuum changes in both suction chambers (4, 5) arranged at the webs (1, 2) for entraining the end portion (3) of the new web (2) to the web (1) which is to be spliced in the embossing nip (6), where bonding of both material webs takes place such as to form a reliable splice, subsequent to which the moving web (1) is cut off for completing the splicing operation.