TIGHT SYSTEM Russian patent published in 2016 - IPC A61F13/49 

FIELD: personal hygiene items.

SUBSTANCE: method of providing a sealed system includes provision of permanently closed tight underpants and provide separate absorbent insert. Tight briefs comprise an elastically extensible body and a liner located in main body, which comprises a liquid impervious bag. Bag has a maximum width of first end segment of at least 145 mm, maximum width of central segment of at least 115 mm and maximum width of end of second segment of at least 145 mm. Tight briefs do not substantially comprise a built-in absorbent core. Absorbent insert comprises an absorbent core with a maximum width of first end segment of at least 120 mm, maximum width of central segment is less than 100 mm and a maximum width of end of second segment of at least 120 mm.

EFFECT: absorbent insert does not contain a liquid-impermeable layer.

20 cl, 45 dwg, 9 tbl