Sca Hygiene Products Ab

Other

Gdm S.p.a.

Essity Hygiene and Health Aktiebolag

Marcus Lehto

Hans Een

Ulrika Carlson

Jean-Francois Cartier

Christian Dumas

Matteo Piantoni

Alberto Perego

Robert Perneborn

Anders Norder

Luca Aiolfi

Lars Melin

Hans Nyqvist

Erik Yngvesson

A method for creating apertures with melted edges in a web shaped material including feeding a web-shaped material through a nip between a rotational ultrasonic horn and a rotational anvil roller, so as to create melted regions in the web-shaped material, while the web is residing on the anvil roller having a rotational speed. The method further includes controlling the rotational speed of the ultrasonic horn to a speed other than that of the anvil roller, such that a speed difference is created between the horn and the anvil roller. The speed difference is selected such that a stress created in the web acts to rupture the centers of the melted regions in the web-shaped material, whereby the apertures with melted edges are created.

Method and system for creating an apertured web-shaped material

An absorbent article such as a diaper, an incontinence pad, a sanitary towel or the like includes at least one elasticated area. The elasticated area includes a patterned area having a visible pattern.

Absorbent article comprising one or several patterns

A seam joining together at least two web materials in an overlapped manner by ultrasonic welding, heat bonding or the like, in a bonding pattern, which includes comprising a first bonding pattern and at least one second bonding pattern extending in a longitudinal direction along and adjacent at least one side edge of the overlapped portion. The bonded area of the second bonding pattern occupies more than 30% of the combined bonded area of the first and second bonding patterns. The bonding elements of the first bonding pattern have a mean area that is at least 2 times the mean area of the bonding elements of the second bonding pattern. The contact area of the bonding pattern, as seen in transverse direction of the seam, is between 10 and 30% of the width of the bonding pattern at any given point along the length of the bonding pattern.

Seam joining together at least two web materials

A pant-type absorbent article including a chassis structure including a front panel having a front end edge and first and second side edges, a back panel having a back end edge and first and second side edges and a crotch panel arranged between the front and back panels at least one of said front and back panels including an elastic nonwoven/film laminate, and a core being integrated with the chassis structure, the first and second side edges of the front panel being joined by side seams to the corresponding first and second side edges of the back panel. Each side seam is formed at least in part in a weldable connecting member, the connecting member including a first part being secured to a side edge on the front panel and a second part being secured to a corresponding side edge on the back panel, said first and second parts of said connecting member being joined by thermowelding to form said side seam.

Pant-type absorbent article and a method for producing pant-type absorbent articles

A method for producing diaper component parts () from strip material (), wherein the strip material () is fed continuously, by means of conveying means (), along a straight path (P) extending through a number of work stations () synchronized with one another; and wherein, along the path (P), the strip material () is secured to the conveying means () so that all points of the strip material () travel at the same speed.

Method for producing diaper component parts from strip material

Disposable hygiene pants with a front portion (), a rear portion () and a crotch portion () provided with two leg openings (), the longitudinal edge portions () of the front portion being connected by longitudinal weld seams () to the longitudinal edge portions () of the rear portion () in order to form a waist opening () and two leg openings () in the crotch portion, which leg openings are outwardly delimited in the transverse direction by the inner end portions of the weld seams as seen in the longitudinal direction of the hygiene pants. The hygiene pants have an outer cover () and comprise an absorption unit (). The cover is preferably made of an elastic laminate. The weld seams () are each reinforced by at least one reinforcing strip () containing thermoplastic fibers and have a tensile strength, in a direction transverse to the weld seam, in excess of 5 N/25.4 mm at least in the portions reinforced with said nonwoven strip ().

Hygiene pants for single use

An arrangement () for the treatment of a material () having at least two layers of material by an ultrasonic device () having an ultrasonic horn () arranged in conjunction with an abutment (), in conjunction with which the material () is positioned in a gap () that is defined between the ultrasonic horn () and the abutment (), and the ultrasonic horn () and/or the abutment () is/are so arranged as to be capable of displacement to permit adjustment of the size of the gap (), for which purpose the arrangement () also includes a control unit () for the regulation of the size of the gap () dependent on the energy supplied to the material in the course of the treatment. The arrangement further includes a detection device () for the determination of at least one predetermined dimension (b; d; b) of the material (), in conjunction with which the control unit () is arranged for the regulation of the size of the gap () dependent on at least the dimension (b; d; b).

Growing community of inventors

Fotö, Sweden

Marcus Lehto