Sca Hygiene Products Ab

Gunnar Edwardson

Urban Widlund

Roy Hansson

Ted Guidotti

Eje &Ouml;sterdahl

Claes G&ouml;ransson

Peter Blomstr&ouml;m

An absorbent article such as a diaper or an incontinence protector, comprising at least one liquid storage region ( ) with high absorption capacity and at least one wicking layer ( ) which overlaps at least a substantial part of the liquid storage region and which has greater liquid dispersion ability than the storage region. The wicking layer ( ) is intended to disperse liquid collected locally in the article over the liquid storage region ( ). The aim of the invention is to improve liquid dispersion in absorbent articles. The invention is characterized in that liquid-impermeable portions ( ) are arranged at separate places in the article along sections of overlapping parts of the wicking layer ( ) and the liquid storage region ( ) in order to prevent the transfer of liquid over said parts from the wicking layer to the storage region. The liquid impermeable portions ( ) are placed in such a way that liquid from at least one initial accumulation place in connection with wetting of the article is first dispersed in the wicking layer ( ) along said portions separated from the liquid storage region ( ) and thereafter is dispersed further in the liquid storage region at a distance from said accumulation place.

Absorbent article with improved liquid dispersion

Method of forming a fiber web ( ) intended for use in absorbent products, such as sanitary towels, by air-laying fibers. Separate air flows containing fibers are fed to a number n of different mat-forming wheels ( ), where n is a whole number which is at least 2. Separate web layers ( ) are formed on each mat-forming wheel. The fiber web ( ) is formed by virtue of said web layers being combined downstream of the mat-forming wheels to form a common fiber web which is imparted very great manufacturing accuracy by virtue of the manufacturing method. The manufacturing speed and thus the web speed can be very high, and the desired manufacturing accuracy at the web speed concerned is achieved by selecting a sufficiently great number n of mat-forming wheels. The invention also relates to a fiber web manufactured according to the method.

Method of forming a fiber web for use in absorbent products, and fiber web produced according to the method

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Bohus Björkö, Sweden

Gunnar Edwardson