Method and apparatus for splicing at least two single or multiple layer materials comprising air permeable soft paper webs

摘要

PCT No. PCT/SE91/00265 Sec. 371 Date Oct. 6, 1992 Sec. 102(e) Date Oct. 6, 1992 PCT Filed Apr. 11, 1991 PCT Pub. No. WO91/16256 PCT Pub. Date Oct. 31, 1991.A method and apparatus for splicing at least two single or multiple layer materials of air permeable soft paper webs while retaining web tension during operation. The apparatus includes a first suction chamber for retaining an end portion of a new web in trailing engagement against a first web, which is to be spliced, a second suction chamber over which moves the first web, which is to be spliced, as well as the forward end portion of the new web for splicing, a regulatable vacuum system for the suction chambers, an embossing nip placed downstream of the second suction chamber for bonding together the webs kept together with the aid of controlled air passage through them, and a cutting means for cutting off the moving web. Splicing takes place by vacuum in both suction chambers arranged at the webs for entraining the end portion of the new web to the first web which is to be spliced in the embossing nip, where bonding of both material webs takes place such as to form a reliable splice, subsequent to which the moving web is cut off for completing the splicing operation.