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    Patents

    Method for Producing Pant-Type Articles Having a Chassis Structure and Pant-Type Articles Produced A

    U.S. Patent No. 10,201,458

    03.15.19
    Ulrika Carlson, Billdal, Sweden; Hans Een, Mölnlycke, Sweden; and Margareta Wennerbäck, Mölnlycke, Sweden.
    Assigned to Essity Hygiene and Health Aktiebolag, Göteborg, Sweden.

    Filed: 11/3/08
    Issued: 2/12/19

    A method for producing pant-type articles having a waist-encircling portion and leg-encircling portions, each article comprising a chassis structure having at least one elastic panel, said method comprising: a) providing a first web being an elastic laminate web comprising a plurality of layers including at least one layer of an elastic film material and at least one nonwoven layer; b) stretching the first web by at least 70% of the initial non-stretched length in at least one direction to form a first stretched elastic web; c) laminating the first stretched web to a first edge portion of continuous nonwoven web being a component of the chassis structure; d) providing a second web being an elastic web comprising at least one layer of an elastic material; e) stretching the second web by at least 70% of the initial non-stretched length in at least one direction to form a second stretched elastic web; f) laminating the second stretched elastic web to a second edge portion of the continuous nonwoven web to form a composite elastic web; g) relaxing the composite elastic web formed by laminating the first and second stretched elastic webs to the continuous nonwoven web by 4-50% of the stretched length of the stretched elastic webs; and h) assembling said chassis structure from chassis components comprising the composite elastic web having the same stretched length as the composite elastic web had immediately after step g).
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