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AssigneeAndritz Kusters GmbH
InventorsDennis Latendorf, Andreas Pesch, Florian Diederich
Estimating the term…
Method for producing wet-laid non-woven fabrics, with which an aqueous suspension comprising fibres is laid down on a screen and is dewatered using suction boxes under the screen to form a sheet of non-woven web which is removed from the screen and guided to at least one subsequent treatment unit before the non-woven web can be wound, and transferring of the non-woven web from the screen to the at least one subsequent treatment unit and/or transferring of the non-woven web to interfaces between treatment units on the start of production and/or after an interruption in production, using a web feed, wherein web is fed via a temporarily closed draw of a free draw between the screen and the at least one subsequent treatment unit and/or of a free draw at an interface between treatment units, and the respective temporarily closed draw is produced via air flows, which lift off an end feeding strip as part of the running non-woven web by blowing, adhere same to a transport path device by generating negative pressure and lift up same at the following treatment unit by suction.
A method for making wet laid non wovens, in which method an aqueous suspension comprising fibers is deposited onto a wire and in order for a sheet of a non woven web to be formed is dewatered by suction boxes below the wire, said non woven web, prior to being capable of being wound-up, being removed from the wire and being guided to at least one subsequent treatment units, and transferring the non woven web from the wire to the at least one subsequent treatment unit, and/or transferring the non woven web at junction points between treatment units in the case of a production start-up and/or upon a production interruption with the aid of a web feeding, characterized in that web feeding is performed by way of a transfer that in each case is temporarily closed and is part of a free transfer between the wire and the at least one subsequent treatment unit and/or of a free transfer at a junction between treatment units, and that the transfer that in each case is temporarily closed is generated by air flows which by blowing lifts an end feeding strip as part of the running non woven web, by generating negative pressure attach said end feeding strip to a transportation path installation, and by suctioning pick up said end feeding strip at the respective subsequent treatment unit.
Dependencies are inferred from the claim text.