Absorbent structure for sanitary articles, an absorbent sanitary article and a plaster comprising this absorbent structure

An absorbent structure, comprising:

• an absorbent pad comprising cellulose fluff and having an upper surface, an opposed lower surface, an outer perimeter and at least one through-opening positioned within the outer perimeter extending through the upper and lower surfaces, the at least one through-opening having a first shape with a first size and a first outer perimeter;
• and
• at least one fluff-free absorbent insert comprising a non-woven layer in which superabsorbent material is incorporated, the at least one fluff-free absorbent insert having a second shape with a second size and a second outer perimeter, the second shape corresponding to the first shape, the second size being smaller than the first size;
• said at least one fluff-free absorbent insert is positioned within said at least one through-opening of said absorbent pad with the second outer perimeter being spaced apart from and inside of the first outer perimeter thereby forming a gap between the at least one fluff-free absorbent insert and the absorbent pad, the gap surrounding the at least one fluff-free absorbent insert so that said at least one fluff-free absorbent insert is spaced apart from and surrounded by the cellulose fluff of the absorbent pad.