Verfahren zur Verbesserung der Strömungsführung von Flüssigkeiten in Vliesen, und absorbierende Wegwerfartikel enthaltend die Vliesen

摘要

The present invention relates to a method to treat non-woven sheet or web materials in order to achieve a fluid transfer capacity in one direction of the material different from the fluid transfer capacity in a crossing direction. The method involves a flexographic printing procedure for coating the material zone-wise with wetting or hydrophobizing agents. The printed nonwoven materials contain elongated, continuous hydrophilic stripes with elongated, continuous hydrophobic stripes between the hydrophilic stripes. The hydrophilic stripes transport fluid in the elongated direction, while the hydrophobic stripes prevent fluid transport to the cross direction. The nonwoven materials according to the invention can be used eg. as sublayers or transport layers in disposable, hygienic absorbent articles.