CA2136064C - Disposable training pants - Google Patents
Disposable training pants Download PDFInfo
- Publication number
- CA2136064C CA2136064C CA002136064A CA2136064A CA2136064C CA 2136064 C CA2136064 C CA 2136064C CA 002136064 A CA002136064 A CA 002136064A CA 2136064 A CA2136064 A CA 2136064A CA 2136064 C CA2136064 C CA 2136064C
- Authority
- CA
- Canada
- Prior art keywords
- holding sheet
- training pants
- moisture holding
- topsheet
- wearer
- 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
Links
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
- 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
- A61F13/495—Absorbent articles specially adapted to be worn around the waist, e.g. diapers with faecal cavity
-
- 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
- A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
-
- 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
- A61F2013/4966—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs with intentionally damp topsheet
Abstract
Disposable training pants comprising a stretchable moisture holding sheet which is bonded at its longitudinally opposite ends to the top surface of a topsheet on front and rear bodies as the moisture holding sheet is stretched in longitudinally opposite directions with respect to a crotch zone across said front and rear bodies.
Description
213sos~.
DISPOSABLE TRAINING PANTS
BACKGROUND OF THE INVENTION
The present invention relates to disposable training pants used for training a baby so that any kind of diaper may become unnecessary for the baby as soon as possible.
Various disposable training pants are well known, for example, from Japanese Laid-Open patent application No.
1993-59601 and Japanese Laid-Open utility model application No. 1993-19305. Each of these techniques is based on disposable training pants comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core sandwiched between these two sheets, and a waist-opening and a pair of leg-openings both provided therearound with stretchable elastic members, respectively.
According to the technique disclosed in said patent application No. 1993-59601, a moisture holding sheet is bonded to the top surface of the topsheet so that the moisture holding sheet may be partially floated up and, according to the technique disclosed in said utility model application No. 1993-19305, a moisture holding sheet is adhesively laminated on the top surface of the topsheet.
DISPOSABLE TRAINING PANTS
BACKGROUND OF THE INVENTION
The present invention relates to disposable training pants used for training a baby so that any kind of diaper may become unnecessary for the baby as soon as possible.
Various disposable training pants are well known, for example, from Japanese Laid-Open patent application No.
1993-59601 and Japanese Laid-Open utility model application No. 1993-19305. Each of these techniques is based on disposable training pants comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core sandwiched between these two sheets, and a waist-opening and a pair of leg-openings both provided therearound with stretchable elastic members, respectively.
According to the technique disclosed in said patent application No. 1993-59601, a moisture holding sheet is bonded to the top surface of the topsheet so that the moisture holding sheet may be partially floated up and, according to the technique disclosed in said utility model application No. 1993-19305, a moisture holding sheet is adhesively laminated on the top surface of the topsheet.
Both these two techniques are characterized in that the moisture holding sheet is normally kept in contact with the wearer's crotch zone to make the wearer feel wet when the excretion of urine occurs and the moisture holding sheet is wetted therewith, and suitable spongy material is used to form the moisture holding sheet in order that the wearer can not be prevented from feeling wet so far as the training pants put on the wearer's body slip down only by a predetermined slight dimension during the movement of the wearer's body. Particularly according to said patent application No. 1993-59601, the moisture holding sheet is partially floated up and thereby said dimension by which the pants may slid down is substantially compensated.
However, both said techniques have been confronted with a problem that it will be no more possible to make the wearer feel wet if the pants slip down by a dimension larger than the thickness or the floating up of the moisture holding sheet. If it is attempted to solve such problem by increasing the thickness or the floating up of the moisture holding sheet, not only a comfortable wearing feel will be impaired even if the pants are normally put on the wearer's body but also the wastefully increased material should be used to assemble the pants. Thus, such ~~ 3so a,~
solution is meaningless.
It is a principal object of the invention to solve the above-mentioned problem of said well known techniques by stretching a stretchable moisture holding sheet in longitudinally opposite directions with respect to the crotch zone of the training pants across front and rear bodies and bonding the moisture holding sheet in this stretched condition at its longitudinally opposite ends to the top surface of the topsheet so as to serve as make-feel-wet means.
SUMMARY OF THE INVENTION
The invention provides disposable training pants comprising: a liquid-permeable topsheet, a liquid-impermeable backsheet and liquid-absorbent core disposed therebetween to define a front body, a rear body and a crotch zone interposed therebetween of said training pants; a stretchable moisture holding sheet having a moisture holding capacity higher than that of said topsheet and fixedly bonded at longitudinally opposite ends of said holding sheet with permanent bonding means to a top surface of said topsheet, whereby said moisture holding sheet, when said training pants are worn, is adapted to bridge over a portion of said crotch zone located therebelow so as to be positioned closer to the wearer's crotch than said crotch zone so that when there is a liquid excretion into the training pants, said moisture holding sheet will retain a part °
" -3a- ~ 1 3 V ~ g of the liquid excretion and by being in contact with the wearer's skin will make the wearer aware of its own excretion.
In an embodiment of the invention, said moisture holding sheet is bonded along its extent between said longitudinally opposite ends temporary bonding means to said top surface.
With the training pants constructed as has been described above, the stretchable moisture holding means permanently bonded at its longitudinally opposite ends to the front and rear bodies floats up above the crotch zone of the .f~ ',~4 _4_ pants on said opposite ends as the pants are put on the wearer's body. The floating up of the moisture holding sheet allows it to be maintained in contact with the crotch zone of the wearer even if the pants slid down by a considerable dimension. This moisture holding sheet can make the wearer feelwet when the sheet is wetted with liquid excretion.
The moisture holding sheet temporarily bonded along its extent between said longitudinally opposite ends is separated and floated up from the topsheet only when the excretion of urine occurs.
BRIEF DESCRIPTION OF THE DRAWINGS
l~
21360fi~
The invention will be described by way of example in reference with the accompanying drawing, in which:
Fig. 1 is a perspective view showing training pants according to the invention;
Fig. 2 is a developed perspective view of the training pants;
Fig. 3 is a sectional view taken along a line X-X
in Fig. 1;
Fig. 4 is a perspective view similar to Fig. 2 exemplarily showing an embodiment of the moisture holding sheet; and Fig. 5 is a sectional view similar to Fig. 3 showing the training pants employing another embodiment of the moisture holding sheet.
PREFERRED EMBODIMENTS OF THE INVENTION
Referring to Fig. 1, training pants 1 is perspectively shown as put on the wearer's body.
Referring to Fig. 2, the pants of Fig. 1 is perspectively shown as front and rear bodies have been separated from each other along transversely opposite bonding lines adjacent the waist line and then longitudinally developed.
2~3~06~- _.
Referring to Figs. 1 and 2, the pants 1 comprise a liquid-permeable topsheet 3, a liquid-impermeable backsheet 4, a liquid-absorbent core 5 sandwiched between these two sheets 3, 4, and a moisture holding sheet 6 bonded to the central zone on the top surface of the topsheet 3, wherein said top- and backsheets 3, 4 are substantially identical in their configurations and intermittently bonded to each other over their portions extending outwards from the peripheral edge of the core 5. The pants 1 have front and rear bodies 7, 8 and a crotch zone 9 interposed between these front and rear bodies 7, 8. From the developed state as seen in Fig. 2, a blank of the pants 1 may be folded in two with the topsheet 3 lying inside and then the front and rear bodies may bonded to each other along their mutually facing side edges so complete the pants 1 having a waist-opening 10 and a pair of leg-openings 11 as shown by Fig.
1. Elastic members 12, 13 are bonded in their stretched condition to peripheral edges of the respective openings.
Referring to Fig. 2, the moisture holding sheet 6 is a stretchable rectangular strip of spongy sheet such as foamed urethane which is formed smaller than the topsheet 3 and bonded at its longitudinally opposite ends by permanent bonding means 16 to the top surface of the 2136~~4 topsheet 3 on the front and rear bodies 7, 8, respectively, as said moisture holding sheet 6 is stretched in longitudinally opposite directions with respect to the crotch zone 9 across said front and rear bodies 7, 8. The sheet 6 is provided with perforations 17 facilitating liquid excretion to be transferred to the topsheet 3.
Fig. 3 is a sectional view taken along a line X-X
in Fig. 1. With the pants 1 put on the wearer's body, the moisture holding sheet 6 elastically contracts between the opposite ends at which the moisture holding sheet 6 has been bonded to the topsheet 3 and tends to float up at the crotch zone 9 from the topsheet 3. The dimension of such floating up adjustably depends on factors such as the positions at which the moisture holding sheet 6 is bonded to the topsheet 3 and the elongation percentage of the moisture holding sheet 6. Such moisture holding sheet 6 can be maintained in contact with the crotch zone of the wearer's body even if the pants 1 once put on the wearer's body slip down to some degree, and therefore can reliably make the wearer feel wet when the moisture holding sheet 6 is wetted with liquid excretion.
Fig. 4 is a view similar to Fig. 2, exemplarily showing another embodiment of the moisture holding sheet 6.
_8_ As shown, a plurality of rubber threads 18 are adhesively bonded in their stretched condition to the lower surface of the moisture holding sheet 6 comprising a rectangular strip made of a non-stretchable nonwoven fabric and this sheet 6 is bonded in its stretched condition to the top surface of the topsheet 3 at its longitudinally opposite ends. With the pants 1 being put on the wearer's body, said nonwoven fabric constituting the sheet 6 is finely wrinkled under the contraction of the rubber threads 18 and tends to float up from the topsheet 3 as in the case shown by Fig. 3.
Fig. 5 is a view similar to Fig. 3, showing further another embodiment of the moisture holding sheet 6. As shown, the moisture holding sheet 6 is bonded by temporary bonding means 21 over its extent defined between the longitudinally opposite ends bonded by the permanent bonding means 16 to the top surface of the topsheet intermittently on the top surface of the topsheet 3 so that liquid excretion may reduce an anchoring effect by said water-soluble adhesive 21 and, in consequence, the moisture holding sheet 6 may contract away from the topsheet 3 in the direction as indicated by an arrow into a position indicated by an imaginary line. In view of a fact that, while the moisture holding sheet 6 should be ~1~6~64 --_g_ maintained in contact with the wearer's skin and thereby reliably make the wearer feel wet, such contact with the wearer's skin prior to the occurrence of urination may obstruct a desired air-permeability around the crotch zone, it is preferred to maintain a good air-permeability at least before the excretion of urine occurs by employing the specific embodiment of the moisture holding sheet 6 shown by Fig. 5.
In the training pants l, the topsheet 3 may be formed by a nonwoven fabric or woven fabric made of synthetic fibers, natural fibers or a mixture thereof, or by a perforated film made of synthetic resin.
The moisture holding sheet 6 may be formed by a sheet having a moisture holding capacity per unit area higher than that of the topsheet 3. For example, a stretchable sheet such as a soft urethane spongy sheet or polyethylene spongy sheet having an expansion ratio of 20 to 70 and a thickness of 1 to 6mm o~ a nonwoven fabric sheet made of crimped fibers or the other stretchable fibers having a weight per unit area of 20 to 200g/mz may be bonded in its stretched consition to the topsheet 3.
Alternatively, the elastic member may be bonded in its stretched condition to a non-stretchable sheet such as a woven fabric, nonwoven fabric or tissue paper, as shown by Fig. 4. To compare the moisture holding capacity of the moisture holding sheet 6 with that of the topsheet 3, for example, after sheet samples of 5 X 5cm have been immersed in artificial urine for 30 seconds and hung down for 60 seconds to swish water off from these samples, an increase in weight may be comparatively determined. The moisture holding capacity of the moisture holding sheet 6 may be controlled by providing it with perforations each having diameter of 1 to lOmm at an area ratio of 5 to 60~, as shown by Fig. 2. If the moisture holding sheet 6 is made from hydrophobic fibers, it is preferred to use such moisture holding sheet 6 after making it hydrophilic. When a stretchable sheet is employed as at least one of the top-and backsheets 3, 4 to obtain the stretchable pants l, the moisture holding sheet 6 must have an elongation ratio higher than an elongation ratio of the pants proper 1 during the actual use of the pants 1 in order that the sheet 6 may reliably float off above the topsheet 3. For temporarily bonding the moisture holding sheet 6 over its extent defined between its longitudinally opposite ends to the topsheet 3, that is, for example, for the temporary bonding means 21, water-soluble adhesives such as ~13~Q6~
polyvinylalcohol or starch glue may be employed or the sheets 3, 6 laminated together may be subjected to the emboss treatment. For permanently bonding the moisture holding sheet 6 at its opposite ends to the topsheet 3, that is, for the permanent bonding means 16~ bonding technique using hot melt adhesives, the other water-insoluble adhesives or heat welding means for heat weldable material may be employed.
The backsheet 4 may be formed by a synthetic resin film such as a polyethylene film and the core 5 may be formed by a product molded from fluff pulps of a mixture of fluff pulps and super-absorbent polymer powders.
Preferably, the core 5 is intermittently bonded to at least " one of the top- and backsheets 3, 4.
However, both said techniques have been confronted with a problem that it will be no more possible to make the wearer feel wet if the pants slip down by a dimension larger than the thickness or the floating up of the moisture holding sheet. If it is attempted to solve such problem by increasing the thickness or the floating up of the moisture holding sheet, not only a comfortable wearing feel will be impaired even if the pants are normally put on the wearer's body but also the wastefully increased material should be used to assemble the pants. Thus, such ~~ 3so a,~
solution is meaningless.
It is a principal object of the invention to solve the above-mentioned problem of said well known techniques by stretching a stretchable moisture holding sheet in longitudinally opposite directions with respect to the crotch zone of the training pants across front and rear bodies and bonding the moisture holding sheet in this stretched condition at its longitudinally opposite ends to the top surface of the topsheet so as to serve as make-feel-wet means.
SUMMARY OF THE INVENTION
The invention provides disposable training pants comprising: a liquid-permeable topsheet, a liquid-impermeable backsheet and liquid-absorbent core disposed therebetween to define a front body, a rear body and a crotch zone interposed therebetween of said training pants; a stretchable moisture holding sheet having a moisture holding capacity higher than that of said topsheet and fixedly bonded at longitudinally opposite ends of said holding sheet with permanent bonding means to a top surface of said topsheet, whereby said moisture holding sheet, when said training pants are worn, is adapted to bridge over a portion of said crotch zone located therebelow so as to be positioned closer to the wearer's crotch than said crotch zone so that when there is a liquid excretion into the training pants, said moisture holding sheet will retain a part °
" -3a- ~ 1 3 V ~ g of the liquid excretion and by being in contact with the wearer's skin will make the wearer aware of its own excretion.
In an embodiment of the invention, said moisture holding sheet is bonded along its extent between said longitudinally opposite ends temporary bonding means to said top surface.
With the training pants constructed as has been described above, the stretchable moisture holding means permanently bonded at its longitudinally opposite ends to the front and rear bodies floats up above the crotch zone of the .f~ ',~4 _4_ pants on said opposite ends as the pants are put on the wearer's body. The floating up of the moisture holding sheet allows it to be maintained in contact with the crotch zone of the wearer even if the pants slid down by a considerable dimension. This moisture holding sheet can make the wearer feelwet when the sheet is wetted with liquid excretion.
The moisture holding sheet temporarily bonded along its extent between said longitudinally opposite ends is separated and floated up from the topsheet only when the excretion of urine occurs.
BRIEF DESCRIPTION OF THE DRAWINGS
l~
21360fi~
The invention will be described by way of example in reference with the accompanying drawing, in which:
Fig. 1 is a perspective view showing training pants according to the invention;
Fig. 2 is a developed perspective view of the training pants;
Fig. 3 is a sectional view taken along a line X-X
in Fig. 1;
Fig. 4 is a perspective view similar to Fig. 2 exemplarily showing an embodiment of the moisture holding sheet; and Fig. 5 is a sectional view similar to Fig. 3 showing the training pants employing another embodiment of the moisture holding sheet.
PREFERRED EMBODIMENTS OF THE INVENTION
Referring to Fig. 1, training pants 1 is perspectively shown as put on the wearer's body.
Referring to Fig. 2, the pants of Fig. 1 is perspectively shown as front and rear bodies have been separated from each other along transversely opposite bonding lines adjacent the waist line and then longitudinally developed.
2~3~06~- _.
Referring to Figs. 1 and 2, the pants 1 comprise a liquid-permeable topsheet 3, a liquid-impermeable backsheet 4, a liquid-absorbent core 5 sandwiched between these two sheets 3, 4, and a moisture holding sheet 6 bonded to the central zone on the top surface of the topsheet 3, wherein said top- and backsheets 3, 4 are substantially identical in their configurations and intermittently bonded to each other over their portions extending outwards from the peripheral edge of the core 5. The pants 1 have front and rear bodies 7, 8 and a crotch zone 9 interposed between these front and rear bodies 7, 8. From the developed state as seen in Fig. 2, a blank of the pants 1 may be folded in two with the topsheet 3 lying inside and then the front and rear bodies may bonded to each other along their mutually facing side edges so complete the pants 1 having a waist-opening 10 and a pair of leg-openings 11 as shown by Fig.
1. Elastic members 12, 13 are bonded in their stretched condition to peripheral edges of the respective openings.
Referring to Fig. 2, the moisture holding sheet 6 is a stretchable rectangular strip of spongy sheet such as foamed urethane which is formed smaller than the topsheet 3 and bonded at its longitudinally opposite ends by permanent bonding means 16 to the top surface of the 2136~~4 topsheet 3 on the front and rear bodies 7, 8, respectively, as said moisture holding sheet 6 is stretched in longitudinally opposite directions with respect to the crotch zone 9 across said front and rear bodies 7, 8. The sheet 6 is provided with perforations 17 facilitating liquid excretion to be transferred to the topsheet 3.
Fig. 3 is a sectional view taken along a line X-X
in Fig. 1. With the pants 1 put on the wearer's body, the moisture holding sheet 6 elastically contracts between the opposite ends at which the moisture holding sheet 6 has been bonded to the topsheet 3 and tends to float up at the crotch zone 9 from the topsheet 3. The dimension of such floating up adjustably depends on factors such as the positions at which the moisture holding sheet 6 is bonded to the topsheet 3 and the elongation percentage of the moisture holding sheet 6. Such moisture holding sheet 6 can be maintained in contact with the crotch zone of the wearer's body even if the pants 1 once put on the wearer's body slip down to some degree, and therefore can reliably make the wearer feel wet when the moisture holding sheet 6 is wetted with liquid excretion.
Fig. 4 is a view similar to Fig. 2, exemplarily showing another embodiment of the moisture holding sheet 6.
_8_ As shown, a plurality of rubber threads 18 are adhesively bonded in their stretched condition to the lower surface of the moisture holding sheet 6 comprising a rectangular strip made of a non-stretchable nonwoven fabric and this sheet 6 is bonded in its stretched condition to the top surface of the topsheet 3 at its longitudinally opposite ends. With the pants 1 being put on the wearer's body, said nonwoven fabric constituting the sheet 6 is finely wrinkled under the contraction of the rubber threads 18 and tends to float up from the topsheet 3 as in the case shown by Fig. 3.
Fig. 5 is a view similar to Fig. 3, showing further another embodiment of the moisture holding sheet 6. As shown, the moisture holding sheet 6 is bonded by temporary bonding means 21 over its extent defined between the longitudinally opposite ends bonded by the permanent bonding means 16 to the top surface of the topsheet intermittently on the top surface of the topsheet 3 so that liquid excretion may reduce an anchoring effect by said water-soluble adhesive 21 and, in consequence, the moisture holding sheet 6 may contract away from the topsheet 3 in the direction as indicated by an arrow into a position indicated by an imaginary line. In view of a fact that, while the moisture holding sheet 6 should be ~1~6~64 --_g_ maintained in contact with the wearer's skin and thereby reliably make the wearer feel wet, such contact with the wearer's skin prior to the occurrence of urination may obstruct a desired air-permeability around the crotch zone, it is preferred to maintain a good air-permeability at least before the excretion of urine occurs by employing the specific embodiment of the moisture holding sheet 6 shown by Fig. 5.
In the training pants l, the topsheet 3 may be formed by a nonwoven fabric or woven fabric made of synthetic fibers, natural fibers or a mixture thereof, or by a perforated film made of synthetic resin.
The moisture holding sheet 6 may be formed by a sheet having a moisture holding capacity per unit area higher than that of the topsheet 3. For example, a stretchable sheet such as a soft urethane spongy sheet or polyethylene spongy sheet having an expansion ratio of 20 to 70 and a thickness of 1 to 6mm o~ a nonwoven fabric sheet made of crimped fibers or the other stretchable fibers having a weight per unit area of 20 to 200g/mz may be bonded in its stretched consition to the topsheet 3.
Alternatively, the elastic member may be bonded in its stretched condition to a non-stretchable sheet such as a woven fabric, nonwoven fabric or tissue paper, as shown by Fig. 4. To compare the moisture holding capacity of the moisture holding sheet 6 with that of the topsheet 3, for example, after sheet samples of 5 X 5cm have been immersed in artificial urine for 30 seconds and hung down for 60 seconds to swish water off from these samples, an increase in weight may be comparatively determined. The moisture holding capacity of the moisture holding sheet 6 may be controlled by providing it with perforations each having diameter of 1 to lOmm at an area ratio of 5 to 60~, as shown by Fig. 2. If the moisture holding sheet 6 is made from hydrophobic fibers, it is preferred to use such moisture holding sheet 6 after making it hydrophilic. When a stretchable sheet is employed as at least one of the top-and backsheets 3, 4 to obtain the stretchable pants l, the moisture holding sheet 6 must have an elongation ratio higher than an elongation ratio of the pants proper 1 during the actual use of the pants 1 in order that the sheet 6 may reliably float off above the topsheet 3. For temporarily bonding the moisture holding sheet 6 over its extent defined between its longitudinally opposite ends to the topsheet 3, that is, for example, for the temporary bonding means 21, water-soluble adhesives such as ~13~Q6~
polyvinylalcohol or starch glue may be employed or the sheets 3, 6 laminated together may be subjected to the emboss treatment. For permanently bonding the moisture holding sheet 6 at its opposite ends to the topsheet 3, that is, for the permanent bonding means 16~ bonding technique using hot melt adhesives, the other water-insoluble adhesives or heat welding means for heat weldable material may be employed.
The backsheet 4 may be formed by a synthetic resin film such as a polyethylene film and the core 5 may be formed by a product molded from fluff pulps of a mixture of fluff pulps and super-absorbent polymer powders.
Preferably, the core 5 is intermittently bonded to at least " one of the top- and backsheets 3, 4.
Claims (5)
1. Disposable training pants comprising:
a liquid-permeable topsheet, a liquid-impermeable backsheet and liquid-absorbent core disposed therebetween to define a front body, a rear body and a crotch zone interposed therebetween of said training pants:
a stretchable moisture holding sheet having a moisture holding capacity higher than that of said topsheet and fixedly bonded at longitudinally opposite ends of said holding sheet with permanent bonding means to a top surface of said topsheet, whereby said moisture holding sheet, when said training pants are worn, is adapted to bridge over a portion of said crotch zone located therebelow so as to be positioned closer to the wearer's crotch than said crotch zone so that when there is a liquid excretion into the training pants, said moisture holding sheet will retain a part of the liquid excretion and by being in contact with the wearer's skin will make the wearer aware of its own excretion.
a liquid-permeable topsheet, a liquid-impermeable backsheet and liquid-absorbent core disposed therebetween to define a front body, a rear body and a crotch zone interposed therebetween of said training pants:
a stretchable moisture holding sheet having a moisture holding capacity higher than that of said topsheet and fixedly bonded at longitudinally opposite ends of said holding sheet with permanent bonding means to a top surface of said topsheet, whereby said moisture holding sheet, when said training pants are worn, is adapted to bridge over a portion of said crotch zone located therebelow so as to be positioned closer to the wearer's crotch than said crotch zone so that when there is a liquid excretion into the training pants, said moisture holding sheet will retain a part of the liquid excretion and by being in contact with the wearer's skin will make the wearer aware of its own excretion.
2. Disposable training pants according to claim l, wherein said moisture holding sheet is bonded over its extent defined between said longitudinally opposite ends by temporary bonding means to said top surface.
3. Disposable training pants according to claim 1, wherein said fixed bonding means are water-insoluble adhesives.
4. Disposable training pants according to claim 1, wherein said fixed bonding means are heat welding ones.
5. Disposable training pants according to claim 2, wherein said temporary bonding means are water-soluble adhesives.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5-63525 | 1993-02-27 | ||
| JP1993063525U JP2580205Y2 (en) | 1993-11-26 | 1993-11-26 | Disposable training pants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2136064A1 CA2136064A1 (en) | 1995-05-27 |
| CA2136064C true CA2136064C (en) | 2000-08-08 |
Family
ID=13231727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002136064A Expired - Fee Related CA2136064C (en) | 1993-11-26 | 1994-11-17 | Disposable training pants |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5891124A (en) |
| EP (1) | EP0661031B1 (en) |
| JP (1) | JP2580205Y2 (en) |
| CN (1) | CN2210547Y (en) |
| AU (1) | AU687442B2 (en) |
| CA (1) | CA2136064C (en) |
| DE (1) | DE69427020T2 (en) |
| ES (1) | ES2156891T3 (en) |
| MY (1) | MY111492A (en) |
| SG (1) | SG55085A1 (en) |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853403A (en) * | 1994-10-25 | 1998-12-29 | Kimberly-Clark Worldwide, Inc. | Absorbent article with body contacting liquid control member |
| US5649914A (en) * | 1994-12-22 | 1997-07-22 | Kimberly-Clark Corporation | Toilet training aid |
| US5681298A (en) * | 1994-12-22 | 1997-10-28 | Kimberly-Clark Worldwide, Inc. | Toilet training aid creating a temperature change |
| JP3343191B2 (en) * | 1996-07-02 | 2002-11-11 | ユニ・チャーム株式会社 | Disposable training pants |
| US6648869B1 (en) * | 1996-12-30 | 2003-11-18 | Kimberly-Clark Worldwide, Inc. | Vertically pleated diaper liner |
| JP3325486B2 (en) * | 1997-02-28 | 2002-09-17 | ユニ・チャーム株式会社 | Disposable training pants |
| JP3340061B2 (en) | 1997-09-29 | 2002-10-28 | ユニ・チャーム株式会社 | Disposable training pants |
| JP3492171B2 (en) | 1997-11-28 | 2004-02-03 | ユニ・チャーム株式会社 | Training pants |
| US6160200A (en) * | 1998-06-29 | 2000-12-12 | The Procter & Gamble Company | Directionally preferential waste passage member for use with disposable absorbent article |
| US20010018579A1 (en) | 1998-12-18 | 2001-08-30 | Walter Klemp | Disposable absorbent garment having stretchable side waist regions |
| MXPA02012805A (en) * | 2000-06-29 | 2005-02-25 | Japan Absorbent Tech Inst | Absorber product. |
| US6657099B1 (en) | 2000-10-25 | 2003-12-02 | Kimberly-Clark Worldwide, Inc. | Sheet for alerting a wearer to urination |
| US6657100B1 (en) * | 2000-10-25 | 2003-12-02 | Kimberly-Clark Worldwide, Inc. | Toilet training article containing an astringent agent |
| US6576810B1 (en) | 2000-10-25 | 2003-06-10 | Kimberly-Clark Worldwide, Inc. | Toilet training article containing an effervescent agent |
| JP3811001B2 (en) * | 2000-12-06 | 2006-08-16 | ユニ・チャーム株式会社 | Disposable wearing items |
| US7491864B2 (en) * | 2001-02-02 | 2009-02-17 | Daio Paper Corporation | Absorbent article for body fluids and production method thereof |
| US6642427B2 (en) * | 2001-05-14 | 2003-11-04 | The Procter & Gamble Company | Wearable article having a temperature change element |
| US20050222546A1 (en) * | 2004-04-01 | 2005-10-06 | The Procter & Gamble Company | Disposable absorbent article having refastenable side seams and a wetness sensation member |
| US6627786B2 (en) | 2001-11-26 | 2003-09-30 | The Procter & Gamble Company | Wearable article having a wetness sensation member |
| US8445743B2 (en) * | 2001-11-26 | 2013-05-21 | The Procter & Gamble Company | Wearable article enhancing awareness of urination |
| US20070191797A1 (en) * | 2006-02-10 | 2007-08-16 | Roe Donald C | Absorbent article with sensation member |
| DE10161495B4 (en) * | 2001-12-14 | 2005-06-02 | Stockhausen Gmbh | Absorbent hygiene articles with soaking indicator |
| US6958432B2 (en) * | 2001-12-14 | 2005-10-25 | Kimberly-Clark Worldwide, Inc. | Disposable absorbent article |
| US6949089B2 (en) | 2001-12-19 | 2005-09-27 | Kimberly-Clark Worldwide, Inc. | Method of providing a series of disposable absorbent articles to consumers |
| US6884238B2 (en) | 2001-12-19 | 2005-04-26 | Kimberly-Clark Worldwide, Inc. | Method of providing a series of disposable absorbent articles to consumers |
| US7438707B2 (en) | 2001-12-28 | 2008-10-21 | Kimberly-Clark Worldwide, Inc | Absorbent articles with absorbent pad gapping |
| US8715257B2 (en) | 2001-12-28 | 2014-05-06 | Kimberly-Clark Worldwide, Inc. | Ratio of absorbent area to outer peripheral area for disposable absorbent articles |
| US20030125696A1 (en) * | 2001-12-31 | 2003-07-03 | Kimberly-Clark Worldwide, Inc. | All direction stretchable multilayer diaper |
| US8388595B2 (en) | 2002-12-19 | 2013-03-05 | Kimberly-Clark Worldwide, Inc. | Disposable undergarment with a detachable crotch member and method for the use thereof |
| US7591810B2 (en) * | 2002-12-19 | 2009-09-22 | Kimberly-Clark Worldwide, Inc. | Absorbent garment having a body conforming absorbent composite |
| US7767876B2 (en) * | 2003-10-30 | 2010-08-03 | The Procter & Gamble Company | Disposable absorbent article having a visibly highlighted wetness sensation member |
| US7002055B2 (en) * | 2004-04-13 | 2006-02-21 | Kimberly-Clark Worldwide, Inc. | Toilet training article containing a foaming agent |
| EP1809222B1 (en) | 2004-11-08 | 2012-07-11 | SCA Hygiene Products AB | Absorbing article comprising an absorbing structure comprising a deformation layer |
| US7806880B2 (en) * | 2005-03-18 | 2010-10-05 | The Procter & Gamble Company | Pull-on wearable article with informational image |
| US20060264858A1 (en) * | 2005-05-20 | 2006-11-23 | Roe Donald C | Multi-functional training garment |
| US7432413B2 (en) | 2005-12-16 | 2008-10-07 | The Procter And Gamble Company | Disposable absorbent article having side panels with structurally, functionally and visually different regions |
| US20070142798A1 (en) * | 2005-12-16 | 2007-06-21 | The Procter & Gamble Company | Disposable absorbent article having serviceable indicia indicating improper fit |
| US8664467B2 (en) * | 2006-03-31 | 2014-03-04 | The Procter & Gamble Company | Absorbent articles with feedback signal upon urination |
| US20070233027A1 (en) * | 2006-03-31 | 2007-10-04 | The Procter & Gamble Company | Absorbent article with sensation member |
| US8491558B2 (en) * | 2006-03-31 | 2013-07-23 | The Procter & Gamble Company | Absorbent article with impregnated sensation material for toilet training |
| US8057450B2 (en) * | 2006-03-31 | 2011-11-15 | The Procter & Gamble Company | Absorbent article with sensation member |
| TW200806271A (en) * | 2006-04-05 | 2008-02-01 | Uni Charm Corp | Absorbent wearing article and flexible structure with multiple tubiform portions |
| US7896858B2 (en) | 2006-12-04 | 2011-03-01 | The Procter & Gamble Company | Absorbent articles comprising graphics |
| JP5138610B2 (en) * | 2006-12-28 | 2013-02-06 | 大王製紙株式会社 | Absorbent article |
| US20130281949A1 (en) * | 2007-10-12 | 2013-10-24 | Lori Lee Periman | Potty training liners |
| US20100152689A1 (en) * | 2008-12-15 | 2010-06-17 | Andrew Mark Long | Physical sensation absorbent article |
| WO2013170433A1 (en) | 2012-05-15 | 2013-11-21 | The Procter & Gamble Company | Absorbent article having characteristic waist end |
| JP6586917B2 (en) * | 2016-04-13 | 2019-10-09 | 王子ホールディングス株式会社 | Absorbent articles |
| JP2020049023A (en) * | 2018-09-27 | 2020-04-02 | 大王製紙株式会社 | Disposable diaper |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5687407U (en) * | 1979-12-06 | 1981-07-13 | ||
| US4891258A (en) * | 1987-12-22 | 1990-01-02 | Kimberly-Clark Corporation | Stretchable absorbent composite |
| JPH01246402A (en) * | 1988-03-28 | 1989-10-02 | Shuji Watanabe | Throwaway diapers |
| JPH0225228U (en) * | 1988-08-05 | 1990-02-20 | ||
| US4895568A (en) * | 1988-08-18 | 1990-01-23 | Kimberly-Clark Corporation | Diaper liner with selectively elasticized portions |
| US4892536A (en) * | 1988-09-02 | 1990-01-09 | The Procter & Gamble Company | Absorbent article having elastic strands |
| US4990147A (en) * | 1988-09-02 | 1991-02-05 | The Procter & Gamble Company | Absorbent article with elastic liner for waste material isolation |
| EP0382022B1 (en) * | 1989-02-08 | 1994-01-05 | Kao Corporation | Absorbent article |
| JP2866424B2 (en) * | 1990-02-07 | 1999-03-08 | 花王株式会社 | Disposable diapers |
| CA2040602C (en) * | 1990-04-24 | 2002-02-12 | Takamitsu Igaue | Disposable training pants |
| JPH0519305A (en) * | 1991-07-10 | 1993-01-29 | Seiko Epson Corp | Liquid crystal display element and projection type liquid crystal display device |
| JP2511445Y2 (en) * | 1991-08-28 | 1996-09-25 | ユニ・チャーム株式会社 | Disposable training pants |
| JP2849246B2 (en) * | 1991-08-28 | 1999-01-20 | ユニ・チャーム株式会社 | Disposable training pants |
| JP2793058B2 (en) * | 1991-08-29 | 1998-09-03 | ユニ・チャーム株式会社 | Disposable training pants |
| US5423726A (en) * | 1991-11-18 | 1995-06-13 | Aeromover Systems Corporation | Differential drive with N outputs. |
| US5527300A (en) * | 1994-08-31 | 1996-06-18 | Kimberly-Clark Corporation | Absorbent article with high capacity surge management component |
-
1993
- 1993-11-26 JP JP1993063525U patent/JP2580205Y2/en not_active Expired - Lifetime
-
1994
- 1994-11-09 AU AU77706/94A patent/AU687442B2/en not_active Ceased
- 1994-11-10 DE DE69427020T patent/DE69427020T2/en not_active Expired - Lifetime
- 1994-11-10 EP EP94870176A patent/EP0661031B1/en not_active Expired - Lifetime
- 1994-11-10 SG SG1996005367A patent/SG55085A1/en unknown
- 1994-11-10 ES ES94870176T patent/ES2156891T3/en not_active Expired - Lifetime
- 1994-11-17 CA CA002136064A patent/CA2136064C/en not_active Expired - Fee Related
- 1994-11-23 MY MYPI94003126A patent/MY111492A/en unknown
- 1994-11-25 CN CN94245614U patent/CN2210547Y/en not_active Expired - Lifetime
-
1996
- 1996-12-23 US US08/780,011 patent/US5891124A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0661031A3 (en) | 1997-10-15 |
| EP0661031B1 (en) | 2001-04-04 |
| SG55085A1 (en) | 1998-12-21 |
| DE69427020T2 (en) | 2001-10-25 |
| AU7770694A (en) | 1995-06-01 |
| JP2580205Y2 (en) | 1998-09-03 |
| MY111492A (en) | 2000-06-30 |
| CA2136064A1 (en) | 1995-05-27 |
| ES2156891T3 (en) | 2001-08-01 |
| DE69427020D1 (en) | 2001-05-10 |
| AU687442B2 (en) | 1998-02-26 |
| JPH0733916U (en) | 1995-06-23 |
| CN2210547Y (en) | 1995-10-25 |
| EP0661031A2 (en) | 1995-07-05 |
| US5891124A (en) | 1999-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2136064C (en) | Disposable training pants | |
| US5885264A (en) | Disposable training pants | |
| US5342343A (en) | Disposable training pants | |
| EP0960612B1 (en) | Disposable diaper | |
| US5817087A (en) | Shorts type disposable diaper | |
| KR940001370B1 (en) | Disposable garment with breathable leg cuffs | |
| US5735839A (en) | Shorts type disposable diaper | |
| US5425726A (en) | Absorbent article | |
| EP1059073B1 (en) | Disposable absorbent article | |
| GB2265834A (en) | Disposable diapers | |
| JP2002186642A (en) | Disposable underwear | |
| JPH0663074A (en) | Disposable diaper | |
| GB2253131A (en) | Diaper of the briefs type | |
| EP0861642A2 (en) | Disposable body fluids absorbent garment with disposal securing means | |
| KR19980064741A (en) | Disposable wear absorbent articles | |
| JP2617011B2 (en) | Disposable wearing articles | |
| JPH04242643A (en) | Absorbent article | |
| KR100706053B1 (en) | Disposable diaper | |
| WO2004112673A1 (en) | Pants-type disposable wearing article | |
| JPH0576565A (en) | Disposable diaper | |
| CZ173497A3 (en) | Absorption article with a system of improved fit | |
| JPH0984824A (en) | Panty type disposable diaper | |
| JPH0630963A (en) | Disposable diaper | |
| JP2616997B2 (en) | Sanitary disposable shorts | |
| JP2603257Y2 (en) | Disposable diapers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |