JP2009082358A5 - - Google Patents

Claims (12)

An absorbent body, a liquid-permeable surface sheet that covers at least the surface side of the absorbent body, and a liquid-impervious leak-proof sheet that covers at least the back surface side of the absorbent body. In disposable paper diapers formed with
On both sides in the longitudinal direction of the absorbent body, a liquid-impermeable coating sheet extends from the back surface side of the absorbent body to the front surface side and is fixed by entraining the absorbent body side edge portion,
Wherein the plurality of apertures are provided on the surface side extending portion of the cover sheet Rutotomoni, said apertures, with respect to widthwise direction line of the absorbent body, the longitudinal angle formed is formed in less than 90 ° Disposable disposable diapers characterized by containing long holes . The covering sheet is constituted by the leak-proof sheet,
On both sides in the longitudinal direction of the absorbent body, the leak-proof sheet is wound around the absorbent-side edge portion and extended to the surface side of the absorbent body, and a plurality of apertures are formed in the surface-side extended portion of the leak-proof sheet. The disposable paper diaper according to claim 1, wherein the disposable diaper is provided.   On both sides in the longitudinal direction of the absorbent body, the covering sheet or leak-proof sheet extends around the absorber side edge and is fixed to the surface side of the absorbent body, and the top sheet is the covering sheet or leak-proofing Absorber side edge in which the gathered nonwoven fabric for forming the three-dimensional gather is wound by the top sheet, and the absorbent side edge part wound by the sheet is further rolled up from the upper side and extended to the back side of the absorber. A part is further wound up from the upper side, it is extended and fixed to the back surface side of an absorber, and several opening is provided in the surface side extension part of the said covering sheet or a leak-proof sheet | seat Disposable disposable diapers as described in 1.   The disposable paper diaper in any one of Claims 1-3 by which the hole is provided in the said surface sheet corresponding to the surface side extension part of the said coating sheet or a leak-proof sheet.   The opening provided in the surface side extension part of the said covering sheet or a leak-proof sheet is made to differ in a hole area ratio by the site | part corresponded to a crotch part at the time of mounting | wearing, and other front-and-back end parts. 4. The disposable paper diaper according to any one of 4 above.   The opening provided in the surface side extending portion of the covering sheet or leak-proof sheet is different in the shape and / or size of the opening between the portion corresponding to the crotch portion and the other front and rear end portions when mounted. The disposable paper diaper according to any one of claims 1 to 4.   The opening provided in the surface side extending portion of the covering sheet or leak-proof sheet is gradually reduced from the crotch portion toward the front and rear end portion at the front and rear end portions other than the portion corresponding to the crotch portion when mounted. The disposable paper diaper according to any one of claims 1 to 4.   The opening provided in the surface side extension part of the said covering sheet or a leak-proof sheet is not formed in the range of the maximum L / 6 from the longitudinal direction both ends of the absorber with respect to the longitudinal direction length L of the said absorber. The disposable paper diaper according to any one of claims 1 to 4.   The opening provided in the surface side extending portion of the covering sheet or leak-proof sheet is an opening group provided in a portion corresponding to the crotch portion when mounted, and an opening group provided in other front and rear end portions. The disposable diaper according to any one of claims 1 to 4, wherein a separation portion is formed between the disposable diapers.   The arrangement direction of all or a part of the aperture groups provided in the surface side extending portion of the covering sheet or leak-proof sheet is arranged to be inclined with respect to the longitudinal direction of the absorber. Disposable paper diapers. The opening provided in the surface side extending portion of the covering sheet or leak-proof sheet is a long hole, and the longitudinal direction of the long hole is arranged to be inclined with respect to the short direction line of the absorber. The disposable paper diaper according to any one of claims 1 to 10.   The opening provided in the surface side extension part of the said covering sheet or a leak-proof sheet is formed so that the surface side may be wide and a back surface side may become narrow with respect to the thickness direction of the said covering sheet or a leak-proof sheet. 11. The disposable paper diaper according to any one of 11 above.