The present invention is a separation device that separates a liquid-absorbent fiber from a material having contaminants and the liquid-absorbent fiber, which pertains to an absorbent article. The present invention has: a case a partition member that compartmentalizes the interior space of the case into a first space and a second space an introduction opening through which the material is introduced into the first space while riding on a flow of air a rotating member that is housed in the first space and that agitates and opens the material and a discharge opening that, of the material opened by the rotating member, causes the discharge from the interior of the first space of the liquid-absorbent fiber while riding on a flow of air. The partition member has a plurality of through holes that interconnect the first space and the second space. The second space is provided with an air intake opening that aspirates air within the second space, and the air intake opening aspirates the liquid-absorbent fiber that has passed through the through holes of the partition member and is floating within the second space.La présente invention concerne un dispositif de séparation qui sépare une fibre absorbant le liquide dun matériau comprenant des contaminants et la fibre absorbant le liquide, qui est associée à un article absorbant. La présente invention comprend : un boîtier un élément de séparation qui compartimente lespace intérieur du boîtier en un premier espace et un second espace une ouverture dintroduction à travers laquelle le matériau est introduit dans le premier espace tout en passant sur un flux dair un élément rotatif abrité dans le premier espace et qui agite et ouvre le matériau et une ouverture dévacuation qui, à partir du matériau ouvert par lélément rotatif, provoque lévacuation, depuis lintérieur du premier espace, de la fibre absorbant le liquide tout en passant sur un flux dair. Lélément de séparation comprend une pluralité dorifices passants qui coupent
