| 摘要 |
A fibrous absorption body having a continuous-density gradient in a direction perpendicular to its largest surfaces, to be used in disposable products such as diapers, sanitary napkins or wound dressings, manufactured by air-laying a blend of cellulose fluff pulp and a binder,the latter preferably in the form of fibres, preheating (9) the formed low-density web (8) to at least the binding temperature for the bonding fibres, compressing (10) the web (8), passing the web (8) through a cooling zone (11) and finally achieving the density gradient in the web (8) by compressing it between a pair of rollers (12) of which the upper one (14) is cold and only the lower one (13) is heated to reach the binding temperature of the bonding fibres anew, the web density thereby continuously increasing in the direction from the cold roller (14) towards the hot roller (13). <??>By using special embossing means disposed at the hot roller (13), the web (8) can be provided with an unbroken surface pattern for increasing the liquid distribution capacity. |
