Pull-on disposable diaper

A disposable diaper, comprising:

• a cover comprising opposite inner and outer surfaces, said cover further comprising longitudinally opposite front and rear waist regions and a crotch region extending between said front and rear waist regions;
• and
• a body fluid absorbing component extending from said crotch region into said front and rear waist regions, said body fluid absorbing component comprising a liquid absorbent core and a liquid-pervious cover sheet;
• wherein
• said body fluid absorbing component, in said crotch region, has transversely opposite portions being tucked inwardly of said diaper;
• said cover sheet comprises a first section covering an inner surface of said core, a second section covering an opposite, outer surface of said core, and a third section disposed between said second section and the inner surface of said cover, said third section being joined to the inner surface of said cover, said cover sheet further comprising a first folded section connecting said first and second sections and a second folded section connecting said third and second sections;
• said second folded section is present not only in the inwardly tucked portions of the body fluid absorbing component, but also outside said inwardly tucked portions;
• said body fluid absorbing component, in said crotch region, is folded along a pair of first fold guiding lines extending from a transversely middle zone of said crotch region toward said front waist region and describing a V shape;
• said body fluid absorbing component, in said crotch region, is further folded along a pair of second fold guiding lines extending from said transversely middle zone of said crotch region toward said rear waist region and also describing a V shape;
• and
• each of the inwardly tucked portions of said body fluid absorbing component is defined between one of said first fold guiding lines and one of said second fold guiding lines.