07.15.15
Shunsuke Takino, Kagawa, Japan. Assigned to Unicharm Corporation, Ehime, Japan.
Filed: 11/25/10
Issued: 2/3/15
A disposable wearing article comprising: a longitudinal direction; a transverse direction orthogonal to said longitudinal direction; a front waist region; a rear waist region; a crotch region extending between said front and rear waist regions; a waist-opening; a pair of leg-openings; annular elastic waist panels defining said front and rear waist regions; and a liquid-absorbent structure attached to the inner surface of said elastic waist panel to define at least a part of said crotch region; side edges of the front and rear waist regions being put flat together and joined to each other at seam spots extending in the longitudinal direction; said rear waist region comprising a rear waist main section joined to the front waist region through the seam spots and a buttocks-covering section lying adjacent to said crotch region below the seam spots; said rear waist main section being divided into an upper area lying adjacent to said waist-opening and a lower area lying adjacent to said crotch region; a tensile stress per unit width dimension in said buttocks-covering section being lower than a tensile stress per unit width dimension in said lower area of said rear waist main section.
The front waist region is divided into an upper area lying adjacent to said waist-opening and a lower area lying adjacent to said crotch region; and said lower area of said front waist region and said lower area of said rear waist main section being contiguous between said front and rear waist region; wherein a tensile stress per unit width of said lower area of said front waist region is equal to a sum of a tensile stress per unit width of said lower area of said rear waist main section and a tensile stress per unit width of said buttocks-covering section, said front waist region includes a plurality of elastic elements associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction; said rear waist section includes a plurality of elastic elements associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction.
The buttocks-covering section includes a plurality of elastic elements each in a form of a string or a strand associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction; and a spacing among said elastic elements associated with said buttocks-covering section is larger than a spacing among said elastic elements associated with said front waist region and said rear waist main section.
Filed: 11/25/10
Issued: 2/3/15
A disposable wearing article comprising: a longitudinal direction; a transverse direction orthogonal to said longitudinal direction; a front waist region; a rear waist region; a crotch region extending between said front and rear waist regions; a waist-opening; a pair of leg-openings; annular elastic waist panels defining said front and rear waist regions; and a liquid-absorbent structure attached to the inner surface of said elastic waist panel to define at least a part of said crotch region; side edges of the front and rear waist regions being put flat together and joined to each other at seam spots extending in the longitudinal direction; said rear waist region comprising a rear waist main section joined to the front waist region through the seam spots and a buttocks-covering section lying adjacent to said crotch region below the seam spots; said rear waist main section being divided into an upper area lying adjacent to said waist-opening and a lower area lying adjacent to said crotch region; a tensile stress per unit width dimension in said buttocks-covering section being lower than a tensile stress per unit width dimension in said lower area of said rear waist main section.
The front waist region is divided into an upper area lying adjacent to said waist-opening and a lower area lying adjacent to said crotch region; and said lower area of said front waist region and said lower area of said rear waist main section being contiguous between said front and rear waist region; wherein a tensile stress per unit width of said lower area of said front waist region is equal to a sum of a tensile stress per unit width of said lower area of said rear waist main section and a tensile stress per unit width of said buttocks-covering section, said front waist region includes a plurality of elastic elements associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction; said rear waist section includes a plurality of elastic elements associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction.
The buttocks-covering section includes a plurality of elastic elements each in a form of a string or a strand associated therewith arranged to extend in said transverse direction and spaced one from another in said longitudinal direction; and a spacing among said elastic elements associated with said buttocks-covering section is larger than a spacing among said elastic elements associated with said front waist region and said rear waist main section.