HYDROENTANGLED FIBROUS STRUCTURES Russian patent published in 2018 - IPC A61F13/537 

FIELD: chemistry.

SUBSTANCE: absorbent article comprises: a topsheet; absorbent core and a secondary topsheet positioned between the topsheet and the absorbent core, wherein the secondary topsheet comprises the hydroentangled fibrous structure, characterized by a surface density of about 35 grams per square meter (g / m²) to about 65 g / m², bending stiffness in the machine direction (MD) of about 0.2 mN⋅cm to about 7 mN⋅cm and a re-wetting index of from about 0.2 g to about 7.0 g, hydroentangled fibrous structure comprises: cellulosic fibrous component, 30 to 60% by weight of the hydroentangled fibrous structure; non-cellulosic fibrous component, that is from 10% to 25% by weight of the hydroentangled fibrous structure; and a binder fiber component based on polyolefins, which ranges from 35% to 55% by weight of the hydroentangled fibrous structure, wherein the binder fiber component based on polyolefins is a bicomponent fiber, containing a component, softening under the influence of temperature increase.

EFFECT: hydroentangled fibrous structure can be incorporated in the absorbent article.

7 cl, 4 dwg, 6 tbl