Sca Hygiene Products Ab

Molnlycke Ab

Ing-Britt Magnusson

Ann Samuelsson

Ted Guidotti

Lennart Nilsson

Christina Steger

Gunilla Hedlund

Madeleine Pehrson

Peter Hedenberg

Johanna P&aring;lsson

The invention relates to an absorbent article, such as a diaper, an incontinence guard, a sanitary napkin or the like, including a liquid-permeable upper surface and an absorbent structure exhibiting a planar extension. The absorbent structure includes an acquisition layer and at least one storage layer. The acquisition layer has a plurality of fragments of a liquid-absorbing, open-celled, polyacrylate-based foam material, and each fragment exhibits a planar extension having a transversal direction, a longitudinal direction, and a thickness direction extending perpendicularly to the planar extension. The width in the transversal direction of each fragment in a dry condition does not exceed 10 millimeters, and the total area of the fragments in the planar extension is lower than the area of the absorbent structure in the planar extension.

Absorbent article comprising an absorbent structure

The invention relates to an absorbent product having a longitudinal direction and a transverse direction and comprising a front and a rear end portion (), an intermediate crotch portion (), edges extending in the longitudinal direction and in the transverse direction, an upper, liquid-permeable surface layer (), a lower, liquid-impermeable surface layer (), an absorbent body () arranged between the surface layers () and comprising edges in the longitudinal direction and in the transverse direction, liquid barriers () extending in the longitudinal direction arranged essentially parallel to those edges of the product running in the longitudinal direction, the liquid barriers () each having a free edge (), side flaps () extending in the longitudinal direction outside the liquid barriers () and comprising parts of at least one of the surface layers (), and elastic elements () extending in the longitudinal direction and fastened to the liquid barriers () or to the side flaps (), the liquid-permeable surface layer () extending in the longitudinal direction of the product at least between the liquid barriers (). The liquid barriers () are, at least in the crotch portion () of the product, in the region between their attachment () to the absorbent product and their free edge (), fixed to the adjacent side flap () outside the edges of the absorbent body (), as a result of which the product has double raised leakage barriers arranged along the edges extending in the longitudinal direction.

Absorbent product with double barriers and single elastic system

A fluid liquid acquisition/transfer layer in an absorbent article, such as a diaper, pant diaper, incontinence guard, sanitary napkin, panty liner or the like. The fluid acquisition/transfer layer includes a mixture of heat-shrunk, spiralized, thermoplastic multicomponent, preferably bicomponent, functional fibers of 3.4 dtex or more. The components of the functional fibers each have different shrinkage properties and are located in a side-by-side relationship for creating the spiralized shape of the functional fibers. The fluid acquisition/transfer layer also includes bonding fibers that bond to each other through heat treatment while the functional fibers do not bond to each other during heat treatment.

Fluid acquisition/transfer layer in an absorbent article

An absorbent product which possesses two longitudinal side edges ( ), two transverse end edges ( ), a longitudinal centre line and a transverse centre line, and which comprises a liquid-permeable outer layer ( ), a liquid-impermeable backing layer ( ) and an absorption core ( ) which is located between the outer layer ( ) and the backing layer ( ), with the absorption core ( ) comprising a first and a second absorption layer ( ), with the first absorption layer ( ) being arranged behind the liquid-permeable outer layer ( ) and the second absorption layer ( ) being arranged between the first absorption layer ( ) and the liquid-impermeable backing layer ( ), with the first absorption layer ( ) having two longitudinal channels ( ), with each of the channels having an outer edge ( ) closest to the corresponding longitudinal side edge ( ) of the product and an inner edge ( ) closest to the longitudinal centre line of the product. The two longitudinal channels ( ) extend through the whole of the thickness of the first absorption layer ( ), and a compressed area ( ) is arranged between the longitudinal sides ( ) of the absorbent product, wherein the distance between the side edges ( ) of the compressed area ( ) is smaller than or equal to the distance between the outer side edges ( ) of the longitudinal channels ( ).

Absorbent product with improved instantaneous liquid adsorption, and improved fit

An absorbent product comprising a liquid-permeable casing layer ( ), a liquid-barrier layer ( ) and an absorption element ( ) which is enclosed between the liquid-permeable casing layer ( ) and the liquid-barrier layer ( ), and a liquid-transfer layer ( ) which is disposed between the liquid-permeable casing layer ( ) and the absorption element ( ). The envelope layer ( ) is bonded in a pattern of distinct thermally produced bonds ( ) to the liquid-transfer layer ( ). The liquid-transfer layer ( ) comprises 40-65% by weight network-creating function fibres which are substantially intact following the bonding-together of the envelope layer ( ) and the liquid-transfer layer ( ) and which have a fibre coarseness ranging from 6 denier to 12 denier and 35-60% by weight fibres comprising a weldable, thermoplastic component and having a fibre coarseness of at least 3 denier.

Absorbent product comprising at least one thermoplastic component to bond layers

Absorbent structure (1) consisting of an absorbent material layer (2) of cellulose fibers (4) and a high-loft material layer (3) of synthetic fibers (5), and a method for producing an absorbent structure (1) which is intended for use in an absorbent article. The two layers are held together by being integrated in each other by the fibers (4) of the absorption material (2) extending into cavities in the high-loft material (3). In this method, the absorbent material (2) is mat-formed directly on a high-loft material (3), which is placed on a wire (26). Arranged under the wire (26) there is a suction box (22) which sucks air downwards, the fibers (4) being sucked downwards and penetrating down into the high-loft material (3).

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Mölnlycke, Sweden

Ing-Britt Magnusson