CA2311469C - Disposable diaper - Google Patents
Disposable diaper Download PDFInfo
- Publication number
- CA2311469C CA2311469C CA002311469A CA2311469A CA2311469C CA 2311469 C CA2311469 C CA 2311469C CA 002311469 A CA002311469 A CA 002311469A CA 2311469 A CA2311469 A CA 2311469A CA 2311469 C CA2311469 C CA 2311469C
- Authority
- CA
- Canada
- Prior art keywords
- covering
- diaper
- circumferential direction
- zones
- length
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
Abstract
Front and rear waist regions 6, 7 of a diaper 1 having a waist-hole 16 of which a peripheral edge is elastically stretchable in a circumferential direction respectively include covering zones 21, 22 and elastic zones 18A, 18B adapted to be stretchable beyond lengths of the covering zones 21, 22 in the circumferential direction.
Description
DISPOSABLE DIAPER
This invention relates to a disposable diaper absorbing and containing body wastes.
Disposable diapers utilizing an inelastic or non-stretchable sheet as its topsheet and/or backsheet is well known. It is also well known in such diapers to secure elastic members under tension in circumferential directions along leg-holes and a waist-hole, respectively, to the inner surface of the topsheet and/or the backsheet and thereby to ensure a good fit of the leg-holes and the waist-hole to the wearer's skin.
In the case of such a well known diaper, a waist size of the diaper has sometimes been dimensioned to be substantially larger than an average waist size of the wearer particularly when the diaper is of pull-on type so that the diaper may be easily put on the wearer's body with the waist-hole being adequately opened. This is true for the leg-holes. However, such dimensioning has necessarily required an amount of material much more than a sufficient amount of material to cover the wearer's legs and waist.
It is an object of this invention to provide a disposable diaper improved to be easily put on the wearer' s body without excessive consumption of material.
According to this invention, there is provided a disposable diaper having front and rear waist regions and a crotch region extending therebetween, the diaper comprising at least one of the front and rear waist regions having an edge zone extending in a circumferential direction around a waist-hole being elastic over a full length of the edge, wherein:
the waist region comprises a covering zone formed integrally with the crotch region to position a waist region of the wearer and an elastic zone attached along an upper edge of the covering zone and adapted to be elastically stretchable in the circumferential direction and the elastic zone comprises a first member adapted to be elastically stretchable in the circumferential direction to a length beyond a length of the covering zone and a second member covering the first member, the second member being adapted to be inelastically stretchable to a length beyond the length of the covering zone and to be attached to the upper edge of the covering zone.
The disposable diaper according to this invention enables the elastic zones associated with the waist-hole to be stretched to a length substantially larger than a total length,of the edges of the covering zones and thereby to open the waist-hole sufficiently to ensure that the diaper can be easily put on the wearer's body, even when the covering zones of the front and rear waist regions have no stretchability in the circumferential direction. With the diaper, it is unnecessary to dimension a circumferential dimension of the covering zones to be substantially larger than a circumferential dimension of the wearer' s torso and therefore stock material required to make the diaper can be correspondingly reduced. Particularly when the rubber ribbon constituting the elastic zone is covered with the non-stretchable sheet previously formed with gathers, it is unnecessary to cover the rubber ribbon with the relatively expensive stretchable sheet.
Fig. 1 is a partially cutaway perspective view showing a diaper according to a principle of this invention; and Fig. 2 is a partially cutaway perspective view showing the diaper developed longitudinally thereof.
A disposable diaper according to this invention will be described in more details with reference to the accompanying drawings.
A disposable diaper 1 shown by Fig. 1 in a partially cutaway perspective view is of pull-on or shorts-type and has a front waist region 6 , a rear waist region 7 and a crotch region 8 extending between these two waist regions 6, 7. The front and rear waist regions 6, 7 are put flat together along their respective pairs of transversely opposite side edges 11, 12 and joined together at joining spots 13 arranged along the side edges 11, 12 intermittently in a vertical direction as viewed in Fig. 1 so as to form a waist-hole 16 and a pair of leg-holes 17. An elastic member 18 extends circumferentially around the waist-hole 16 and elastic members 19 extend circumferentially around respective the leg-holes 17. The diaper 1 comprises a liquid-pervious topsheet 2 defining the inner side of the diaper 1, a liquid-impervious backsheet 3 defining the outer side of the diaper 1 and a liquid-absorbent core 4 disposed between the topsheet 2 and the backsheet 3.
Fig. 2 is a partially cutaway perspective view the diaper of Fig. 1 cut open along the joining spots 13 and having its front and rear waist regions 6, 7 developed apart in a direction of double-headed arrow A. The front and rear waist regions 6, 7 respectively comprise front and rear covering zones 21, 22 adapted to cover front and rear waist regions of the wearer and front and rear elastic zones 18A, 18B identical in shape as well as in size provided along front and rear ends 23, 24 of the respective covering zones 21, 22 extending circumferentially along the waist-hole 16. The crotch region 8 comprises a crotch covering zone 26 adapted to cover a crotch region of the wearer and a pair of elastic zones 19 provided along curved edges 27 of the covering zone 26. The front and rear covering zones 21, 22 and the crotch covering zone 26 are formed by the topsheet 2, the backsheet 3 and the core 4 which are continuous longitudinally of the diaper 1. The core 4 is hourglass-shaped and portions of the topsheet 2 and the backsheets 3 extending outward beyond a peripheral edge of the core 4 are put flat and joined together by means of hot melt adhesive agent (not shown) .
The diaper 1 is assembled by putting the transversely opposite side edges 11, 12 of the front and rear waist regions 6, 7 flat together, then joining them together at the joining spots 13 and thereby an annular elastic zone 18 is formed by the front and rear elastic zones 18A, 18B. Of the front and rear elastic zones 18A, 18B, the rear elastic zone 18B is illustrated as before this elastic zone 18B is attached to the rear covering zone 22. The rear elastic zone 18B comprises a rubber ribbon 31 which can be elastically stretched by at least 1.3 times, preferably by 2.0 times, more preferably by at least 3.0 times of a length L of the rear waist region 7 and a covering sheet 32 adapted to cover the rubber ribbon 31, which is longer than the dimension L and stretchable at least at the stretchability of the rubber ribbon 31. The number of the rubber ribbon 31 and shape as well as dimension of its cross-section are not specified. Raw material for the rubber ribbon 31 also is not specified and may be selected from a group including natural rubber, synthetic rubber, synthetic resin elastomer, synthetic resin elastic threads and a woven fabric made of such elastic threads. However, it is important that the front and rear elastic zones 18A, 18B each comprising an assembly of the rubber ribbon 31 and the covering sheet 32 should have their circumferential stretch stress preferably when they are stretched by 3 - 20 ~ lower than a stretch stress exhibited by portions of the front and rear covering zones 21, 22 extending along the elastic zones 18A, 18B having the same widths as the elastic zones 18A, 18B. Generally, the covering sheet 32 is longer than the dimension L and inelastically or elastically stretched as the rubber ribbon 31 is elastically stretched. For example, a non-stretchable sheet longer than the dimension L
is formed with gathers 33 undulating in the circumferential direction along the waist-hole to make this sheet substantially stretchable and attached to the rear covering zone 22.
Alternatively, the covering sheet 32 comprise an inelastically stretchable sheet attached to the rear covering zone 22 so that the sheet may be stretched as the rubber ribbon 31 is stretched and forms gathers as the rubber ribbon 31 contracts . It is also possible to use the covering sheet 32 adapted to be elastically stretched together with the rubber ribbon 31.
The rubber ribbon 31 may be covered with a pair of covering sheets 32 in a sandwich fashion or covered with the covering sheet 32 cylindrically shaped adapted to receive the rubber ribbon 31 therein. In any case, the rubber ribbon 31 is secured to the sheet at least at longitudinally opposite ends of the rubber ribbon 31 or, if desired, a length of the rubber ribbon 31 defined between the opposite ends is intermittently or continuously bonded to the covering sheet 32. Specifically to describe in reference with Fig. 2, three to five pieces of synthetic rubber ribbon 31 each having a thickness of 0.3 mm, a width of 2.1 mm and a length of 171 mm are stretched to 400 mm and intermittently bonded to a pair of the non-stretchable covering sheets 32 made of a spun bond nonwoven fabric and having a length of 400 mm by means of a hot melt adhesive agent (not shown ) to cover the rubber ribbon 31 with the covering sheet 32 in sandwich fashion and thereby to obtain the rear elastic zone 18B. The rubber ribbon 31 is relaxed to contract and thereby causes the sheet 32 to form the gathers 33. The rear elastic zone 18B contracted to a length of 240 mm in this manner _g_ is attached to the rear covering zone 22 having the length L
of 240 mm as measured along the waist line by suitable means such as adhesion, heat-sealing or stitching.
With the diaper 1, the elastic zone 18 associated with the waist-hole 16 is stretched as indicated by the imaginary lines in Fig. 1 and said waist-hole 16 is adequately opened so that the diaper 1 can be easily put on the wearer's body even when the front and rear covering zones 21, 22 have no stretchability in the circumferential direction.
With this diaper 1, similarly to the elastic zone 18 associated with the waist-hole 16, each of the elastic zones 19 associated with the leg-holes 17 should be elastically stretchable to a dimension longer than, at least by 1.3 times, preferably at least by 2 times and more preferably at least by 3 times of an actual dimension as measured along the length surrounding edge 27 of the crotch covering zone 26. Such elastic zone 19 may comprise elastically stretchable rubber ribbon and a stretchable covering sheet.
As will be apparent from the foregoing description made in reference with the accompanying drawings, either both the longitudinal ends of the front and rear waist regions 6, 7 or any one of these ends may be provided with an elastic stretchability in accordance with this invention. It is possible without departing from the scope of this invention to adjust the stretch stresses of the elastic zones 18A, 18B
associated with the front and rear waist regions 6, 7 to be different from each other. The well known stock materials may be used to form the topsheet 2 and the backsheet. 3 and the core 4. Bonding of the respective members may be performed using suitable means such as adhesion, heat-sealing or stitching.
This invention relates to a disposable diaper absorbing and containing body wastes.
Disposable diapers utilizing an inelastic or non-stretchable sheet as its topsheet and/or backsheet is well known. It is also well known in such diapers to secure elastic members under tension in circumferential directions along leg-holes and a waist-hole, respectively, to the inner surface of the topsheet and/or the backsheet and thereby to ensure a good fit of the leg-holes and the waist-hole to the wearer's skin.
In the case of such a well known diaper, a waist size of the diaper has sometimes been dimensioned to be substantially larger than an average waist size of the wearer particularly when the diaper is of pull-on type so that the diaper may be easily put on the wearer's body with the waist-hole being adequately opened. This is true for the leg-holes. However, such dimensioning has necessarily required an amount of material much more than a sufficient amount of material to cover the wearer's legs and waist.
It is an object of this invention to provide a disposable diaper improved to be easily put on the wearer' s body without excessive consumption of material.
According to this invention, there is provided a disposable diaper having front and rear waist regions and a crotch region extending therebetween, the diaper comprising at least one of the front and rear waist regions having an edge zone extending in a circumferential direction around a waist-hole being elastic over a full length of the edge, wherein:
the waist region comprises a covering zone formed integrally with the crotch region to position a waist region of the wearer and an elastic zone attached along an upper edge of the covering zone and adapted to be elastically stretchable in the circumferential direction and the elastic zone comprises a first member adapted to be elastically stretchable in the circumferential direction to a length beyond a length of the covering zone and a second member covering the first member, the second member being adapted to be inelastically stretchable to a length beyond the length of the covering zone and to be attached to the upper edge of the covering zone.
The disposable diaper according to this invention enables the elastic zones associated with the waist-hole to be stretched to a length substantially larger than a total length,of the edges of the covering zones and thereby to open the waist-hole sufficiently to ensure that the diaper can be easily put on the wearer's body, even when the covering zones of the front and rear waist regions have no stretchability in the circumferential direction. With the diaper, it is unnecessary to dimension a circumferential dimension of the covering zones to be substantially larger than a circumferential dimension of the wearer' s torso and therefore stock material required to make the diaper can be correspondingly reduced. Particularly when the rubber ribbon constituting the elastic zone is covered with the non-stretchable sheet previously formed with gathers, it is unnecessary to cover the rubber ribbon with the relatively expensive stretchable sheet.
Fig. 1 is a partially cutaway perspective view showing a diaper according to a principle of this invention; and Fig. 2 is a partially cutaway perspective view showing the diaper developed longitudinally thereof.
A disposable diaper according to this invention will be described in more details with reference to the accompanying drawings.
A disposable diaper 1 shown by Fig. 1 in a partially cutaway perspective view is of pull-on or shorts-type and has a front waist region 6 , a rear waist region 7 and a crotch region 8 extending between these two waist regions 6, 7. The front and rear waist regions 6, 7 are put flat together along their respective pairs of transversely opposite side edges 11, 12 and joined together at joining spots 13 arranged along the side edges 11, 12 intermittently in a vertical direction as viewed in Fig. 1 so as to form a waist-hole 16 and a pair of leg-holes 17. An elastic member 18 extends circumferentially around the waist-hole 16 and elastic members 19 extend circumferentially around respective the leg-holes 17. The diaper 1 comprises a liquid-pervious topsheet 2 defining the inner side of the diaper 1, a liquid-impervious backsheet 3 defining the outer side of the diaper 1 and a liquid-absorbent core 4 disposed between the topsheet 2 and the backsheet 3.
Fig. 2 is a partially cutaway perspective view the diaper of Fig. 1 cut open along the joining spots 13 and having its front and rear waist regions 6, 7 developed apart in a direction of double-headed arrow A. The front and rear waist regions 6, 7 respectively comprise front and rear covering zones 21, 22 adapted to cover front and rear waist regions of the wearer and front and rear elastic zones 18A, 18B identical in shape as well as in size provided along front and rear ends 23, 24 of the respective covering zones 21, 22 extending circumferentially along the waist-hole 16. The crotch region 8 comprises a crotch covering zone 26 adapted to cover a crotch region of the wearer and a pair of elastic zones 19 provided along curved edges 27 of the covering zone 26. The front and rear covering zones 21, 22 and the crotch covering zone 26 are formed by the topsheet 2, the backsheet 3 and the core 4 which are continuous longitudinally of the diaper 1. The core 4 is hourglass-shaped and portions of the topsheet 2 and the backsheets 3 extending outward beyond a peripheral edge of the core 4 are put flat and joined together by means of hot melt adhesive agent (not shown) .
The diaper 1 is assembled by putting the transversely opposite side edges 11, 12 of the front and rear waist regions 6, 7 flat together, then joining them together at the joining spots 13 and thereby an annular elastic zone 18 is formed by the front and rear elastic zones 18A, 18B. Of the front and rear elastic zones 18A, 18B, the rear elastic zone 18B is illustrated as before this elastic zone 18B is attached to the rear covering zone 22. The rear elastic zone 18B comprises a rubber ribbon 31 which can be elastically stretched by at least 1.3 times, preferably by 2.0 times, more preferably by at least 3.0 times of a length L of the rear waist region 7 and a covering sheet 32 adapted to cover the rubber ribbon 31, which is longer than the dimension L and stretchable at least at the stretchability of the rubber ribbon 31. The number of the rubber ribbon 31 and shape as well as dimension of its cross-section are not specified. Raw material for the rubber ribbon 31 also is not specified and may be selected from a group including natural rubber, synthetic rubber, synthetic resin elastomer, synthetic resin elastic threads and a woven fabric made of such elastic threads. However, it is important that the front and rear elastic zones 18A, 18B each comprising an assembly of the rubber ribbon 31 and the covering sheet 32 should have their circumferential stretch stress preferably when they are stretched by 3 - 20 ~ lower than a stretch stress exhibited by portions of the front and rear covering zones 21, 22 extending along the elastic zones 18A, 18B having the same widths as the elastic zones 18A, 18B. Generally, the covering sheet 32 is longer than the dimension L and inelastically or elastically stretched as the rubber ribbon 31 is elastically stretched. For example, a non-stretchable sheet longer than the dimension L
is formed with gathers 33 undulating in the circumferential direction along the waist-hole to make this sheet substantially stretchable and attached to the rear covering zone 22.
Alternatively, the covering sheet 32 comprise an inelastically stretchable sheet attached to the rear covering zone 22 so that the sheet may be stretched as the rubber ribbon 31 is stretched and forms gathers as the rubber ribbon 31 contracts . It is also possible to use the covering sheet 32 adapted to be elastically stretched together with the rubber ribbon 31.
The rubber ribbon 31 may be covered with a pair of covering sheets 32 in a sandwich fashion or covered with the covering sheet 32 cylindrically shaped adapted to receive the rubber ribbon 31 therein. In any case, the rubber ribbon 31 is secured to the sheet at least at longitudinally opposite ends of the rubber ribbon 31 or, if desired, a length of the rubber ribbon 31 defined between the opposite ends is intermittently or continuously bonded to the covering sheet 32. Specifically to describe in reference with Fig. 2, three to five pieces of synthetic rubber ribbon 31 each having a thickness of 0.3 mm, a width of 2.1 mm and a length of 171 mm are stretched to 400 mm and intermittently bonded to a pair of the non-stretchable covering sheets 32 made of a spun bond nonwoven fabric and having a length of 400 mm by means of a hot melt adhesive agent (not shown ) to cover the rubber ribbon 31 with the covering sheet 32 in sandwich fashion and thereby to obtain the rear elastic zone 18B. The rubber ribbon 31 is relaxed to contract and thereby causes the sheet 32 to form the gathers 33. The rear elastic zone 18B contracted to a length of 240 mm in this manner _g_ is attached to the rear covering zone 22 having the length L
of 240 mm as measured along the waist line by suitable means such as adhesion, heat-sealing or stitching.
With the diaper 1, the elastic zone 18 associated with the waist-hole 16 is stretched as indicated by the imaginary lines in Fig. 1 and said waist-hole 16 is adequately opened so that the diaper 1 can be easily put on the wearer's body even when the front and rear covering zones 21, 22 have no stretchability in the circumferential direction.
With this diaper 1, similarly to the elastic zone 18 associated with the waist-hole 16, each of the elastic zones 19 associated with the leg-holes 17 should be elastically stretchable to a dimension longer than, at least by 1.3 times, preferably at least by 2 times and more preferably at least by 3 times of an actual dimension as measured along the length surrounding edge 27 of the crotch covering zone 26. Such elastic zone 19 may comprise elastically stretchable rubber ribbon and a stretchable covering sheet.
As will be apparent from the foregoing description made in reference with the accompanying drawings, either both the longitudinal ends of the front and rear waist regions 6, 7 or any one of these ends may be provided with an elastic stretchability in accordance with this invention. It is possible without departing from the scope of this invention to adjust the stretch stresses of the elastic zones 18A, 18B
associated with the front and rear waist regions 6, 7 to be different from each other. The well known stock materials may be used to form the topsheet 2 and the backsheet. 3 and the core 4. Bonding of the respective members may be performed using suitable means such as adhesion, heat-sealing or stitching.
Claims (7)
1. A disposable diaper comprising:
a front waist region extending between and to transversely opposite side edges of the disposable diaper;
a rear waist region extending between and to said transversely opposite side edges of the diaper;
a crotch region located longitudinally between the front waist region and the rear waist region;
a waist-hole;
a pair of leg-holes;
all said regions being formed of a topsheet, a back sheet and an absorbent core disposed therebetween;
said diaper further comprising:
said front and rear waist regions and said crotch region each including front, rear and crotch covering zones that are integrally formed with one another, said front and rear waist regions each further including front and rear elastic zones that extend continuously along a full length in a circumferentially direction of each of said front and rear waist regions to define at least part of said waist-hole; wherein:
said front and rear elastic zones each including a first members and second members, said first members being assemblies of rubber ribbon elastically stretchable in said circumferential direction of said front and rear waist regions to a length greater than a transverse length of each of said front and rear covering zones, said first members are extending between and to the transversely opposite side edges of the diaper, said second members each covering said first members, and extending between and to the transversely opposite side edges of the diaper; and first and second members each having a stretch stress when they are stretched by 3-20% lower than a stretch stress exhibited by portions of said front and rear covering zones extending along said front and rear elastic zones having the same widths as said front and rear elastic zones; and said second members each being inelastically stretchable to a length greater than the transverse length of each of said front and rear covering zones and attached to an upper edge of each of said front and rear covering zones so as to form gathers that extend along the full length of each of said front and rear regions in said circumferential direction between and to each of the opposite side edges of the diaper.
a front waist region extending between and to transversely opposite side edges of the disposable diaper;
a rear waist region extending between and to said transversely opposite side edges of the diaper;
a crotch region located longitudinally between the front waist region and the rear waist region;
a waist-hole;
a pair of leg-holes;
all said regions being formed of a topsheet, a back sheet and an absorbent core disposed therebetween;
said diaper further comprising:
said front and rear waist regions and said crotch region each including front, rear and crotch covering zones that are integrally formed with one another, said front and rear waist regions each further including front and rear elastic zones that extend continuously along a full length in a circumferentially direction of each of said front and rear waist regions to define at least part of said waist-hole; wherein:
said front and rear elastic zones each including a first members and second members, said first members being assemblies of rubber ribbon elastically stretchable in said circumferential direction of said front and rear waist regions to a length greater than a transverse length of each of said front and rear covering zones, said first members are extending between and to the transversely opposite side edges of the diaper, said second members each covering said first members, and extending between and to the transversely opposite side edges of the diaper; and first and second members each having a stretch stress when they are stretched by 3-20% lower than a stretch stress exhibited by portions of said front and rear covering zones extending along said front and rear elastic zones having the same widths as said front and rear elastic zones; and said second members each being inelastically stretchable to a length greater than the transverse length of each of said front and rear covering zones and attached to an upper edge of each of said front and rear covering zones so as to form gathers that extend along the full length of each of said front and rear regions in said circumferential direction between and to each of the opposite side edges of the diaper.
2. The diaper according to Claim 1, wherein said first member comprises at least one rubber ribbon.
3. The diaper according to Claim 1, wherein said second member comprises a sheet material having an initial length greater than the length of said covering zone in said circumferential direction of said at least one of said front and rear waist regions and formed in said circumferential direction with gathers in order to shorten said sheet material substantially to said length of said covering zone.
4. The diaper according to Claim 1, wherein said second member comprises a sheet material having a length substantially equal to the length of each of said front and rear covering zones in said circumferential direction of each of said front and rear waist regions and inelastically stretchable in said circumferential direction.
5. The diaper according to Claim 1, wherein said covering zone is non-stretchable in said circumferential direction of at least one of said front and rear waist regions.
6. The diaper according to Claim 1, wherein said covering zone is elastically stretchable in said circumferential direction and has a stretch stress higher than a stretch stress of said elastic zone when said elastic zone is stretched by 3-20% in a portion of said covering zone extending along said elastic zone and having a same width as said elastic zone.
7. The diaper according to Claim 1, wherein each of said leg-holes each comprises a continuous elastic zone extending along a full length in a circumferential direction of each of said leg-holes, said elastic zone including a third member that is elastically stretchable in said circumferential direction of each of said leg-holes and a fourth member securing and covering said third member, said fourth member being inelastically stretchable to a length greater than said length in said circumferential direction of each of said leg-holes and joined to an outer side edge of each of said leg-holes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11-168184 | 1999-06-15 | ||
| JP16818499A JP3492242B2 (en) | 1999-06-15 | 1999-06-15 | Disposable diapers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2311469A1 CA2311469A1 (en) | 2000-12-15 |
| CA2311469C true CA2311469C (en) | 2005-03-29 |
Family
ID=15863352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002311469A Expired - Fee Related CA2311469C (en) | 1999-06-15 | 2000-06-12 | Disposable diaper |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US8212102B2 (en) |
| EP (1) | EP1060721B1 (en) |
| JP (1) | JP3492242B2 (en) |
| KR (1) | KR100661885B1 (en) |
| CN (2) | CN1277012A (en) |
| AU (1) | AU774765B2 (en) |
| CA (1) | CA2311469C (en) |
| DE (1) | DE60018509T2 (en) |
| ID (1) | ID26389A (en) |
| MY (1) | MY123490A (en) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7569039B2 (en) * | 2003-11-19 | 2009-08-04 | The Procter & Gamble Company | Disposable pull-on garment |
| US20070208318A1 (en) * | 2006-03-03 | 2007-09-06 | Kimberly-Clark Worldwide, Inc. | Disposable pant-like absorbent undergarment closely resembling cloth underwear |
| CN101854897B (en) * | 2007-11-14 | 2013-04-24 | Sca卫生用品公司 | Method of producing an absorbent garment, and an absorbent garment produced according to the method |
| JP2014512235A (en) | 2011-04-29 | 2014-05-22 | ザ プロクター アンド ギャンブル カンパニー | Absorbent article with leg gasket cuff |
| EP2723288A1 (en) * | 2011-06-21 | 2014-04-30 | The Procter and Gamble Company | Absorbent article with waistband having consolidation |
| US20120330264A1 (en) * | 2011-06-21 | 2012-12-27 | Kathleen Marie Lawson | Absorbent Article With A Waistband And Leg Cuff Having Gathers |
| JP2014516756A (en) | 2011-06-21 | 2014-07-17 | ザ プロクター アンド ギャンブル カンパニー | Absorbent article with waistband having shrinkage |
| CN103987288B (en) * | 2011-12-09 | 2016-12-14 | Sca卫生用品公司 | Including matrix and the medicated clothing of belt |
| CN104284643A (en) | 2012-05-15 | 2015-01-14 | 宝洁公司 | Disposable absorbent pants with advantageous stretch and manufacturability features, and methods for manufacturing the same |
| RU2630892C2 (en) | 2012-05-15 | 2017-09-13 | Дзе Проктер Энд Гэмбл Компани | Absorbing products with textured areas, forming background structures and macrostructures |
| JP6193472B2 (en) | 2013-03-22 | 2017-09-06 | ザ プロクター アンド ギャンブル カンパニー | Disposable absorbent article |
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-
1999
- 1999-06-15 JP JP16818499A patent/JP3492242B2/en not_active Expired - Lifetime
-
2000
- 2000-06-12 CA CA002311469A patent/CA2311469C/en not_active Expired - Fee Related
- 2000-06-13 MY MYPI20002656 patent/MY123490A/en unknown
- 2000-06-13 ID IDP20000486D patent/ID26389A/en unknown
- 2000-06-14 EP EP00305039A patent/EP1060721B1/en not_active Revoked
- 2000-06-14 DE DE60018509T patent/DE60018509T2/en not_active Expired - Lifetime
- 2000-06-14 KR KR1020000032637A patent/KR100661885B1/en not_active IP Right Cessation
- 2000-06-14 AU AU40839/00A patent/AU774765B2/en not_active Ceased
- 2000-06-15 CN CN00118376A patent/CN1277012A/en active Pending
- 2000-06-15 CN CN2007101613012A patent/CN101172075B/en not_active Expired - Fee Related
-
2009
- 2009-03-16 US US12/381,732 patent/US8212102B2/en not_active Expired - Fee Related
-
2012
- 2012-06-01 US US13/486,124 patent/US20120238987A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| MY123490A (en) | 2006-05-31 |
| JP2000354606A (en) | 2000-12-26 |
| KR100661885B1 (en) | 2006-12-28 |
| AU4083900A (en) | 2000-12-21 |
| DE60018509T2 (en) | 2006-01-26 |
| US8212102B2 (en) | 2012-07-03 |
| EP1060721A3 (en) | 2001-06-20 |
| EP1060721B1 (en) | 2005-03-09 |
| JP3492242B2 (en) | 2004-02-03 |
| AU774765B2 (en) | 2004-07-08 |
| EP1060721A2 (en) | 2000-12-20 |
| KR20010007365A (en) | 2001-01-26 |
| CN101172075A (en) | 2008-05-07 |
| DE60018509D1 (en) | 2005-04-14 |
| CN1277012A (en) | 2000-12-20 |
| CA2311469A1 (en) | 2000-12-15 |
| US20090182298A1 (en) | 2009-07-16 |
| ID26389A (en) | 2000-12-21 |
| CN101172075B (en) | 2012-11-28 |
| US20120238987A1 (en) | 2012-09-20 |
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| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180612 |