CA2043016C - Disposable garments of pants type - Google Patents
Disposable garments of pants type Download PDFInfo
- Publication number
- CA2043016C CA2043016C CA 2043016 CA2043016A CA2043016C CA 2043016 C CA2043016 C CA 2043016C CA 2043016 CA2043016 CA 2043016 CA 2043016 A CA2043016 A CA 2043016A CA 2043016 C CA2043016 C CA 2043016C
- Authority
- CA
- Canada
- Prior art keywords
- hole surrounding
- flap
- leg
- waist
- elastic band
- 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 - Lifetime
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
- A61F13/496—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
-
- 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
- A61F13/49014—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels
-
- 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
- A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
-
- 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
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
- A61F5/4401—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices with absorbent pads
-
- 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
- A61F13/491—Absorbent articles specially adapted to be worn around the waist, e.g. diapers specially adapted for gender distinct urine discharge pattern
-
- 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
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
- A61F2013/49031—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in longitudinal direction
-
- 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
- A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
- A61F2013/49095—Being formed by lateral sleets
-
- 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
- A61F2013/49096—Absorbent articles specially adapted to be worn around the waist, e.g. diapers with braces
Abstract
A disposable garment of paints type, such as a disposable diaper of pants type, is constructed by attaching respective leg-hole surrounding flaps and waist-hole surrounding flaps to respective opposite side edges extending longitudinally of a basic assembly for the garment which comprises at least a topsheet and a backsheet. The leg-hole surrounding flaps and the waist-hole surrounding flaps respectively cooperate to form a pair of leg-holes. A pair of shoulder straps can be easily prepared by making a slit which extends longitudinally of the garment on each waist-hole surrounding flap. A
disposable garment of the present invention is featured in its simple construction and easy production.
disposable garment of the present invention is featured in its simple construction and easy production.
Description
DISPOSABLE GARMEDITS OF PAWL'S TYPE
BACKGROUND OF THE INVENTION
The present invention relates i~o disposable garments and more particularly to such garments of pants type having a simplified const.ruation.
While most of commonly used disposable garments such as diaper, training pants and incontinence briefs have been of so-called open type, such disposable garments of pants type have been also proposed, for example, by U.S. Patent No.
4,771,483.
The present invention is directed to disposable garments of pants type having a simplified construction.
The above-identified U.S. Patent No. 4,771,483 also proposes such disposable pants type garments of a simplified construction. According to this prior art, a rectangular sheet material is provided along each of opposite side edges with a single slit extending substantially in paxallel to the associated ane of said opposite side edges and a narraw section defined between said slit and said a~saciated one of 'the opposite side edges is incorporated with a suitable elastic member under its stretched condition so as to farm a pair of waist-hole surrounding elastic bands. However, this prior art .has substantially no regard for prevention of body fluid leakage possibly occurring around the leg-holes, which ~~~~o~~
is critical for the disposable garments in general and, therefore, may raise a problem in practical use. In view of such situation, it is an object of the invention to provide novel disposable garments of pants type allowing said body fluid leakage to be effectively prevented with a simplified construction.
SUMMARY OF THE INVENTION
The object set forth above is achieved, in accordance with the invention, by disposable garments of pants type comprising a basic assembly including at least a liquid-permeable topsheet and a liquid-impermeable backsheet, and elastic bands mounted on said basic assembly for partially surrounding a waist-hole, said basic assembly having outlines traversing respective longitudinally extending opposite side edges and transversely extending opposite end edges, characterized in that each of said opposite side edges is provided with a flap and said elastic band, said flap surrounding a leg-hole cooperatively with said elastic band, an outer side edge of said leg-hole surrounding flap being attached to said basic assembly along the associated one of said opposite side edges thereof, and respective end edges of said leg-hole surrounding flap and said waist-hole surrounding elastic band being attached to said, basic assembly by means of respective attaching lines provided along the outline of said garments. These and the other features of the invention will be more apparent from the following description.
According to the present invention, there are provided a pair of leg--hole surrounding flaps extending longitudinally of the garments along the opposite side edges thereof, respectively. Each of said leg-hole surrounding flaps has its outer side edge fluid-tightly attached to the associated one of said opposite side edges of the garments and its inner side edge cooperating with said topsheet of the garments to form a pocket opened towards a center line extending longitudinally of said garments. Said pocket is effective to prevent leakage of body exudate which otherwise might occur around the legs of a wearer. There are further provided a pair of waist-hole surrounding elastic bands extending along said apposite side edges, resepctively.
These elastic bands are attached to the basin assembly of the garments only at their end edges along the respective outlines of said basic assembly. Ac~cordi.ngly, said garments are excellent in function and very :pimple in construction, allowing themselves to be easily asp>embled and to be offered to users at a reasonably low cost.
BRIEF DESCRIPTTON OF THE DRAY~IINCS
Fig. 1 is a perspective view illustrating disposable diaper of pants type as one emboi3iment of the present invention;
Fig. 2 is a plan view of the carne;
Figs. 2A through 2C are fragmentary plan views illustrating by way of example how the end edge is attached along the outline of the garments;
Figs. 3A through 3C are sectional views taken along a line x-Y in Fig. 2 and illustrate by way of example manners of said edge attaching;
Fig. 4 is a perspective view illustrating, partially in a section, an example of overlap attaching of the end edge;
Figs. 5 ar~d 6 are a perspective view and a perspective view partially in section taken along a line Z-Z in Fig. 5, respectively, illustrating another embodiment of the invention; and Figs. 7 and F3 are a perspective view and a fragmentary plan view illustrating still another embodiment of the invention.
PREFERRED EMBODIMENTS OF THE INVENTION
The invention will be described more in detail with reference to the accompanying drawings. It should be understood that each disposable dial>er of the embodiment is laterally symmetric with respect to a center line extending longitudinally thereof.
BACKGROUND OF THE INVENTION
The present invention relates i~o disposable garments and more particularly to such garments of pants type having a simplified const.ruation.
While most of commonly used disposable garments such as diaper, training pants and incontinence briefs have been of so-called open type, such disposable garments of pants type have been also proposed, for example, by U.S. Patent No.
4,771,483.
The present invention is directed to disposable garments of pants type having a simplified construction.
The above-identified U.S. Patent No. 4,771,483 also proposes such disposable pants type garments of a simplified construction. According to this prior art, a rectangular sheet material is provided along each of opposite side edges with a single slit extending substantially in paxallel to the associated ane of said opposite side edges and a narraw section defined between said slit and said a~saciated one of 'the opposite side edges is incorporated with a suitable elastic member under its stretched condition so as to farm a pair of waist-hole surrounding elastic bands. However, this prior art .has substantially no regard for prevention of body fluid leakage possibly occurring around the leg-holes, which ~~~~o~~
is critical for the disposable garments in general and, therefore, may raise a problem in practical use. In view of such situation, it is an object of the invention to provide novel disposable garments of pants type allowing said body fluid leakage to be effectively prevented with a simplified construction.
SUMMARY OF THE INVENTION
The object set forth above is achieved, in accordance with the invention, by disposable garments of pants type comprising a basic assembly including at least a liquid-permeable topsheet and a liquid-impermeable backsheet, and elastic bands mounted on said basic assembly for partially surrounding a waist-hole, said basic assembly having outlines traversing respective longitudinally extending opposite side edges and transversely extending opposite end edges, characterized in that each of said opposite side edges is provided with a flap and said elastic band, said flap surrounding a leg-hole cooperatively with said elastic band, an outer side edge of said leg-hole surrounding flap being attached to said basic assembly along the associated one of said opposite side edges thereof, and respective end edges of said leg-hole surrounding flap and said waist-hole surrounding elastic band being attached to said, basic assembly by means of respective attaching lines provided along the outline of said garments. These and the other features of the invention will be more apparent from the following description.
According to the present invention, there are provided a pair of leg--hole surrounding flaps extending longitudinally of the garments along the opposite side edges thereof, respectively. Each of said leg-hole surrounding flaps has its outer side edge fluid-tightly attached to the associated one of said opposite side edges of the garments and its inner side edge cooperating with said topsheet of the garments to form a pocket opened towards a center line extending longitudinally of said garments. Said pocket is effective to prevent leakage of body exudate which otherwise might occur around the legs of a wearer. There are further provided a pair of waist-hole surrounding elastic bands extending along said apposite side edges, resepctively.
These elastic bands are attached to the basin assembly of the garments only at their end edges along the respective outlines of said basic assembly. Ac~cordi.ngly, said garments are excellent in function and very :pimple in construction, allowing themselves to be easily asp>embled and to be offered to users at a reasonably low cost.
BRIEF DESCRIPTTON OF THE DRAY~IINCS
Fig. 1 is a perspective view illustrating disposable diaper of pants type as one emboi3iment of the present invention;
Fig. 2 is a plan view of the carne;
Figs. 2A through 2C are fragmentary plan views illustrating by way of example how the end edge is attached along the outline of the garments;
Figs. 3A through 3C are sectional views taken along a line x-Y in Fig. 2 and illustrate by way of example manners of said edge attaching;
Fig. 4 is a perspective view illustrating, partially in a section, an example of overlap attaching of the end edge;
Figs. 5 ar~d 6 are a perspective view and a perspective view partially in section taken along a line Z-Z in Fig. 5, respectively, illustrating another embodiment of the invention; and Figs. 7 and F3 are a perspective view and a fragmentary plan view illustrating still another embodiment of the invention.
PREFERRED EMBODIMENTS OF THE INVENTION
The invention will be described more in detail with reference to the accompanying drawings. It should be understood that each disposable dial>er of the embodiment is laterally symmetric with respect to a center line extending longitudinally thereof.
f [Embodiment 1]
Fig. 1 is a perspective view o:E so-called pants type disposable diaper 1 constructed as a specific embodiment of the invention and Fig. 2 is a plan view of the same diaper 1 as being longitudinally stretched and developed to a flat position with its inner side facing upwards. Since the diaper 1 is laterally symmetric with respect to the center line extending longitudinally, as has previously been mentioned, only the left half of the diaper as viewed in Fig. 2 will be described in detail.
deferring to Fig. 1, the diaper 1 comprises a basic assembly constructed of a water-permeable topsheet 2, a water-impermeable back~heet 3 and an absorbent core 4 sandwiched therebetween, a pair of waist-hole surrounding elastic bands 7 connecting a front body 5 to a rear body 6 in said basic assembly, and a pair of leg-hole surrounding flaps 8. Each of the waist-hole surrounding elastic bands has a plurality of rubber strips 20 and each of the leg-hole surrounding flaps 8 also has a plurality of rubber strips 21, both being made in the form of elastic gathers. Both the waist-hole surrounding elastic band 7 and the leg-hole surrounding flap 8 comprise water-impermeable materials and, more preferably, air-permeable but water-impermeable materials such as nonwoven fabric formed from suitable hydrophobic fibres.
~~~p~U~.U
Now referring to Fig. 2, the leg-hole surrounding ' narrow flaps 8 extend along opposite side edges of the diaper 1, respectively, each of said flaps 8 having its outer side edge attached to the topsheet 2 or the backsheet 3 of the basic assembly along a bonding line 11C and its inner side edge opposed to the outer side edge of the associated waist-hole surrounding elastic band 7. The flap 8 has its longitudinally opposite ends 8A, 8B attached to the topsheet 2 or the backsheet 3 along respective attaching lines 11A, 11B and, similarly, the elastic band 7 has its longitudinally opposite ends 7A, 7B attached thereto along respective attaching lines lOA, 108, said attaching lines 11A, 10A and 118, 10B extending slang respective outlines 14A, 14B of the basic assembly, as will be described later more in detail. The attaching line; 10A, 10B, 11A, 11B and 11C are formed by well known means ~;uch as adhesion and hot melt welding, of which at least the lines 11A through 11C
are respectively required to be continuous to prevent leakage of body exudate possib7.y occurring around the user's legs. Thus, a pocket 30 opened towe~rds the center line X-X
is cooperatively defined. Additionally, it i~ preferred that the respectively adjacent lines 10A, 11A and 108, 11B
are continuous into respective single lines in order to achieve a neat appearance of area accompanied by, these lines.
The lines 10A, 11A are provided. along a straight sine 14A corresponding to an outline traversing a longitudinal end edge 12A and a side edge 13A of the basic assembly while the lines 10B, 11B are provided along a straight line 14B
corresponding to an outline section traversing the other end edge 12B and said side edge 13A. In this manner, the waist' hole surrounding elastic band 7 is adapted to have a natural fitness around the associated side of the wearer's waist (not shown), as will be apparent from Fig. 1.
Referring to Fig. 2A, there is illustrated another embodiment of the above-mentioned a~ttachi,ng, in which said straight line 14A corresponds to an outline connecting an intersecting point of the end edge 12A and the longitudinally extending center line X-X to the side edge 13A. In this embodiment, the opposite end edges of the basic assembly are substantially defined by the points 12A, 12B, respectively, and such configuration also is covered by the scope of the present invention.
Fig. 2B illustrates still another embodiment of the above-mentioned attaching, in which said straight line 14A
corresponding to said outline is replaced by a curved line.
Such configuration also is covered by the scope of the present invention.
Fig. 2C illustrates further another cash in which said straight line 14A corresponding to said outline is formed by folding a corner zone defined between the end edge 12A and the side edge 18A back inwards. In this case the topsheet 2 can be fixed in face-to-face relationship by means of adhesion in order to avoid any undesirable displacement thereof. The waist-hole surrounding elastic band 7 and the leg-hole surrounding flap 8 are respectively attached to the backsheet 3 at said folded corner zone by the attaching lines 1nA, 11A extending along the straight 1?ne 14A.
Figs. 3A through 3C and Figs. 4A and 4B illustrate further various variations of the above-mentioned attaching.
Figs. 3A, 3B and 3C schematically illustrate how the flap 8 is attached along the side edge thereof to the basic assembly of the diaper 1 in a sectional view as taken between arrows Y-Y in Fig. 2 and viewed in the direction of these arrows. Specifically, Fig. 3A illustrates a case in which the flap 8 is attached to the topsheet 2 by means of hot melt adhesive 12, Fig. 3B illustrates a case in which the flap 8 is attached to the backsheet 8 extending out~ards from~the outer side edge of the topsheet 2, and Fig. 3C
illustrates a case in which the said backsheet 3 extending outwards from the side edge of the topsheet 2 in Fig. 3B is folded back inwards and the flap 8 is attached aver this folded edge. The manners of attaching as illustrated by Figs. 3B and 3C are advantageous in that a body exudate having permeated through the water-permeable topsheet 2 is having permeated through the water-permeable topsheet 2 is dammed up within the pocket 80 and effectively prevented from exuding through the side edges of the diaper 1.
Attaching may be effected along the opposite side edges and the respective outlines of the basic assembly in the manners as have been described above to form the diaper 1 illustrated by Fig. 2. The rubber strips 20 associated with the waist-hole surrounding elastic band 7 and the rubber strips 21 associated with the leg-hole surrounding flap 8 have previously been bonded under their stretched conditions to said elastic band 7 and said flap 8, respectively so that, when the diaper 1 is free from any external force exerted thereon, respective said .rubber strips contract to form gathers in the elastic band 7 and the flap 8 while the inner side edge of said flap 8 mare or less tends to rise and to form the pocket 30 in cooperation with the topsheet 2.
While this specific embodiment has been illustrated as including the absorbent core ~, the absorbent core 9 is not essential to the present invention.
[Embodiment 2]
Fig. 4 illustrates another embodiment of the invention partially in a transverse section. This embodiment is similar to Embodiment 1 except that the waist-hole surrounding elastic band 7 overlaps the associated leg-hole surrounding flap 8 so that the elastic band 7 is partially interposed between the flap 8 and,the topsheet 2. In this embodiment, the attaching Line 10A for the elastic band 7 and the attaching line 11A for the flap 8 both extending along the straight line 14A corresponding to an outline of the Ioasic assembly substantially define together a single continuous bonding line. With such arrangement, the elastic band 7 underlying the flap 8 li-fts the flap 8 off from the topsheet 2 around the lines 10A, 11A as _a.. user widely separates the elastic band 7 and the associated flap 8 to wear the diaper 1, and thereby the pocket 30 is widely opened.
As will be readily understood from Fig. ~, the rubber strips 20, 21 are covered with respective backing sheets 18 so that a wearer's skin is protected against direct contact with these rubber strips 20, 21.
[Embodiment 3]
Fig. 5 illustrates a specific embodiment in which the waist-hole surrounding elastic band 7 and the associated leg-hole surrounding flap 8 are integral with each other. A
water-impermeable, preferably air-permeable but water-impermeable sheet member 15 is attached to the topsheet 2 along each of the opposite side edges thereof by an attaching line 16 made of hot melt adhesive 12 and.. said attaching line 16 extends to the opposite end edges of, the diaper 1 so as to attach opposite end edges 15A, 15B of said sheet member 15 also to the topsheet 2. The sheet member 15 is formed with a slit 17 extending longitudinally thereof so that said slit 17 divides the sheet member 15 into the waist-hole surrounding elastic band 7 on the side of said center line X-X extending longitudinally of the diaper 1 and the leg-hole surrounding flap 8 on the side of the side edge 13A, said elastic band 7 and flap 8 being integral with each other at apposite ends of said slit 17.
Fig. 6 illustrates a section taken along a line 2-~ in Fig. 5. As illustrated, the elastic band 7 is incorporated with the rubber strips 20 and the flap 8 is incorporated with the rubber strips 21. It is not critical for the present invention whether 'the rubber strips 20, 21 are same or not in their material, configuration, number ar amount, elongation percentage and the other factors.
[Embodiment 4]
Fig. 7 illustrates a case in which each of the waist-hole elastic bands 7 provides a shoulder strap 35.
Fig. 8 i2lustrates the diaper 1 as stretched and developed to its flat position. As seen in Fig. 8, the waist-hole elastic band 7 is provided with a longitudinal slit 23 so that a narrow portion of the elastic band 7 defined between the inner side edge 'thereof and the slit 23 can be used as a shoulder strap 35. The shoulder strap 35 may be incorporated with appropriate number of rubber strips 22 as indicated by broken lines, if desired, and these rubber strips 22 may be bonded to the shoulder strap 35 simultaneously when the rubber strips 20 are bonded to the elastic band 7. It is not critical for the invention whether the rubber strips 20, 22 are similar or not.
Fig. 1 is a perspective view o:E so-called pants type disposable diaper 1 constructed as a specific embodiment of the invention and Fig. 2 is a plan view of the same diaper 1 as being longitudinally stretched and developed to a flat position with its inner side facing upwards. Since the diaper 1 is laterally symmetric with respect to the center line extending longitudinally, as has previously been mentioned, only the left half of the diaper as viewed in Fig. 2 will be described in detail.
deferring to Fig. 1, the diaper 1 comprises a basic assembly constructed of a water-permeable topsheet 2, a water-impermeable back~heet 3 and an absorbent core 4 sandwiched therebetween, a pair of waist-hole surrounding elastic bands 7 connecting a front body 5 to a rear body 6 in said basic assembly, and a pair of leg-hole surrounding flaps 8. Each of the waist-hole surrounding elastic bands has a plurality of rubber strips 20 and each of the leg-hole surrounding flaps 8 also has a plurality of rubber strips 21, both being made in the form of elastic gathers. Both the waist-hole surrounding elastic band 7 and the leg-hole surrounding flap 8 comprise water-impermeable materials and, more preferably, air-permeable but water-impermeable materials such as nonwoven fabric formed from suitable hydrophobic fibres.
~~~p~U~.U
Now referring to Fig. 2, the leg-hole surrounding ' narrow flaps 8 extend along opposite side edges of the diaper 1, respectively, each of said flaps 8 having its outer side edge attached to the topsheet 2 or the backsheet 3 of the basic assembly along a bonding line 11C and its inner side edge opposed to the outer side edge of the associated waist-hole surrounding elastic band 7. The flap 8 has its longitudinally opposite ends 8A, 8B attached to the topsheet 2 or the backsheet 3 along respective attaching lines 11A, 11B and, similarly, the elastic band 7 has its longitudinally opposite ends 7A, 7B attached thereto along respective attaching lines lOA, 108, said attaching lines 11A, 10A and 118, 10B extending slang respective outlines 14A, 14B of the basic assembly, as will be described later more in detail. The attaching line; 10A, 10B, 11A, 11B and 11C are formed by well known means ~;uch as adhesion and hot melt welding, of which at least the lines 11A through 11C
are respectively required to be continuous to prevent leakage of body exudate possib7.y occurring around the user's legs. Thus, a pocket 30 opened towe~rds the center line X-X
is cooperatively defined. Additionally, it i~ preferred that the respectively adjacent lines 10A, 11A and 108, 11B
are continuous into respective single lines in order to achieve a neat appearance of area accompanied by, these lines.
The lines 10A, 11A are provided. along a straight sine 14A corresponding to an outline traversing a longitudinal end edge 12A and a side edge 13A of the basic assembly while the lines 10B, 11B are provided along a straight line 14B
corresponding to an outline section traversing the other end edge 12B and said side edge 13A. In this manner, the waist' hole surrounding elastic band 7 is adapted to have a natural fitness around the associated side of the wearer's waist (not shown), as will be apparent from Fig. 1.
Referring to Fig. 2A, there is illustrated another embodiment of the above-mentioned a~ttachi,ng, in which said straight line 14A corresponds to an outline connecting an intersecting point of the end edge 12A and the longitudinally extending center line X-X to the side edge 13A. In this embodiment, the opposite end edges of the basic assembly are substantially defined by the points 12A, 12B, respectively, and such configuration also is covered by the scope of the present invention.
Fig. 2B illustrates still another embodiment of the above-mentioned attaching, in which said straight line 14A
corresponding to said outline is replaced by a curved line.
Such configuration also is covered by the scope of the present invention.
Fig. 2C illustrates further another cash in which said straight line 14A corresponding to said outline is formed by folding a corner zone defined between the end edge 12A and the side edge 18A back inwards. In this case the topsheet 2 can be fixed in face-to-face relationship by means of adhesion in order to avoid any undesirable displacement thereof. The waist-hole surrounding elastic band 7 and the leg-hole surrounding flap 8 are respectively attached to the backsheet 3 at said folded corner zone by the attaching lines 1nA, 11A extending along the straight 1?ne 14A.
Figs. 3A through 3C and Figs. 4A and 4B illustrate further various variations of the above-mentioned attaching.
Figs. 3A, 3B and 3C schematically illustrate how the flap 8 is attached along the side edge thereof to the basic assembly of the diaper 1 in a sectional view as taken between arrows Y-Y in Fig. 2 and viewed in the direction of these arrows. Specifically, Fig. 3A illustrates a case in which the flap 8 is attached to the topsheet 2 by means of hot melt adhesive 12, Fig. 3B illustrates a case in which the flap 8 is attached to the backsheet 8 extending out~ards from~the outer side edge of the topsheet 2, and Fig. 3C
illustrates a case in which the said backsheet 3 extending outwards from the side edge of the topsheet 2 in Fig. 3B is folded back inwards and the flap 8 is attached aver this folded edge. The manners of attaching as illustrated by Figs. 3B and 3C are advantageous in that a body exudate having permeated through the water-permeable topsheet 2 is having permeated through the water-permeable topsheet 2 is dammed up within the pocket 80 and effectively prevented from exuding through the side edges of the diaper 1.
Attaching may be effected along the opposite side edges and the respective outlines of the basic assembly in the manners as have been described above to form the diaper 1 illustrated by Fig. 2. The rubber strips 20 associated with the waist-hole surrounding elastic band 7 and the rubber strips 21 associated with the leg-hole surrounding flap 8 have previously been bonded under their stretched conditions to said elastic band 7 and said flap 8, respectively so that, when the diaper 1 is free from any external force exerted thereon, respective said .rubber strips contract to form gathers in the elastic band 7 and the flap 8 while the inner side edge of said flap 8 mare or less tends to rise and to form the pocket 30 in cooperation with the topsheet 2.
While this specific embodiment has been illustrated as including the absorbent core ~, the absorbent core 9 is not essential to the present invention.
[Embodiment 2]
Fig. 4 illustrates another embodiment of the invention partially in a transverse section. This embodiment is similar to Embodiment 1 except that the waist-hole surrounding elastic band 7 overlaps the associated leg-hole surrounding flap 8 so that the elastic band 7 is partially interposed between the flap 8 and,the topsheet 2. In this embodiment, the attaching Line 10A for the elastic band 7 and the attaching line 11A for the flap 8 both extending along the straight line 14A corresponding to an outline of the Ioasic assembly substantially define together a single continuous bonding line. With such arrangement, the elastic band 7 underlying the flap 8 li-fts the flap 8 off from the topsheet 2 around the lines 10A, 11A as _a.. user widely separates the elastic band 7 and the associated flap 8 to wear the diaper 1, and thereby the pocket 30 is widely opened.
As will be readily understood from Fig. ~, the rubber strips 20, 21 are covered with respective backing sheets 18 so that a wearer's skin is protected against direct contact with these rubber strips 20, 21.
[Embodiment 3]
Fig. 5 illustrates a specific embodiment in which the waist-hole surrounding elastic band 7 and the associated leg-hole surrounding flap 8 are integral with each other. A
water-impermeable, preferably air-permeable but water-impermeable sheet member 15 is attached to the topsheet 2 along each of the opposite side edges thereof by an attaching line 16 made of hot melt adhesive 12 and.. said attaching line 16 extends to the opposite end edges of, the diaper 1 so as to attach opposite end edges 15A, 15B of said sheet member 15 also to the topsheet 2. The sheet member 15 is formed with a slit 17 extending longitudinally thereof so that said slit 17 divides the sheet member 15 into the waist-hole surrounding elastic band 7 on the side of said center line X-X extending longitudinally of the diaper 1 and the leg-hole surrounding flap 8 on the side of the side edge 13A, said elastic band 7 and flap 8 being integral with each other at apposite ends of said slit 17.
Fig. 6 illustrates a section taken along a line 2-~ in Fig. 5. As illustrated, the elastic band 7 is incorporated with the rubber strips 20 and the flap 8 is incorporated with the rubber strips 21. It is not critical for the present invention whether 'the rubber strips 20, 21 are same or not in their material, configuration, number ar amount, elongation percentage and the other factors.
[Embodiment 4]
Fig. 7 illustrates a case in which each of the waist-hole elastic bands 7 provides a shoulder strap 35.
Fig. 8 i2lustrates the diaper 1 as stretched and developed to its flat position. As seen in Fig. 8, the waist-hole elastic band 7 is provided with a longitudinal slit 23 so that a narrow portion of the elastic band 7 defined between the inner side edge 'thereof and the slit 23 can be used as a shoulder strap 35. The shoulder strap 35 may be incorporated with appropriate number of rubber strips 22 as indicated by broken lines, if desired, and these rubber strips 22 may be bonded to the shoulder strap 35 simultaneously when the rubber strips 20 are bonded to the elastic band 7. It is not critical for the invention whether the rubber strips 20, 22 are similar or not.
Claims (6)
1. Disposable garments of pants type, comprising a basic assembly including a liquid-permeable topsheet, a liquid-impermeable backsheet and a liquid-absorbent core disposed therebetween, and elastic bands mounted on said basic assembly for partially surrounding a waist-hole, said basic assembly having outlines traversing respective longitudinally extending opposite side edges and transversely extending opposite end edges, characterised in that each of said opposite side edges is provided with a flap and said elastic band, said flap surrounding a leg-hole cooperatively with said elastic band, an outer side edge of said leg-hole surrounding flap being attached to said basic assembly along the associated one of said opposite side edge thereof, and respective end edges of said leg-hole surrounding flap and said waist-hole surrounding elastic band being attached to said basic assembly by means of respective attaching lines provided along the outlines of said garments.
2. Disposable garments of pants type as claimed in claim 1, wherein said attaching lines for the respective end edges of said leg-hole surrounding flap and associated said waist-hole surrounding elastic bad define a substantially continuous single line.
3. Disposable garments of pants type as claimed in claim 1, wherein an inner side edge of said leg-hole surrounding flap and an outer side edge of said waist-hole surrounding elastic band are contiguous to each other on said bonding lines and adjacent thereto.
4. Disposable garments of pants type as claimed in claim 1, wherein said leg-hole surrounding flap and said waist-hole surrounding elastic band overlap each other at least on said bonding lines and adjacent thereto with said elastic band being interposed between said leg-hole surrounding flap and said topsheet.
5. Disposable garments of pants type as claimed in claim 1, wherein a pair of said leg-hole surrounding flap and said waist-hole surrounding elastic band is formed by providing a single member with a slit.
6. Disposable garments of pants type as claimed in claim 1, wherein said waist-hole surrounding elastic band is provided with a longitudinal slit therein so as to form a shoulder strap.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2134439A JP3033833B2 (en) | 1990-05-24 | 1990-05-24 | Pants-type disposable wearing article |
JP2-134439 | 1990-05-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2043016A1 CA2043016A1 (en) | 1991-11-25 |
CA2043016C true CA2043016C (en) | 2002-02-26 |
Family
ID=15128388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2043016 Expired - Lifetime CA2043016C (en) | 1990-05-24 | 1991-05-22 | Disposable garments of pants type |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0460467B1 (en) |
JP (1) | JP3033833B2 (en) |
KR (1) | KR0111423Y1 (en) |
AU (1) | AU644874B2 (en) |
CA (1) | CA2043016C (en) |
DE (1) | DE59106287D1 (en) |
GB (1) | GB2244909B (en) |
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US4578892A (en) * | 1985-04-01 | 1986-04-01 | Oscar Obst, Jr. | Rodent trap |
JP2824138B2 (en) * | 1990-08-31 | 1998-11-11 | 花王株式会社 | Disposable absorbent articles |
AU648112B2 (en) * | 1990-10-25 | 1994-04-14 | Uni-Charm Corporation | Disposable wearing article of pants type |
ZA92308B (en) | 1991-09-11 | 1992-10-28 | Kimberly Clark Co | Thin absorbent article having rapid uptake of liquid |
US5246433A (en) * | 1991-11-21 | 1993-09-21 | The Procter & Gamble Company | Elasticized disposable training pant and method of making the same |
SE508409C2 (en) | 1992-03-04 | 1998-10-05 | Sca Hygiene Prod Ab | Absorbent diaper pants |
JP3350094B2 (en) * | 1992-05-22 | 2002-11-25 | ザ、プロクター、エンド、ギャンブル、カンパニー | Disposable training pants with improved elastic side panels |
JP2606492Y2 (en) * | 1992-07-21 | 2000-11-06 | ユニ・チャーム株式会社 | Disposable pants |
KR100240245B1 (en) * | 1992-10-27 | 2000-01-15 | 린다 디. 로러 | Disposable diaper with fully elasticized waist opening |
CA2147470C (en) * | 1992-10-27 | 1999-01-05 | Keith Wesley Rollag | Disposable diaper with fully elasticised waist opening |
FR2701207B1 (en) * | 1993-02-09 | 1995-05-05 | Peaudouce | Disposable absorbent diaper with improved waterproofing. |
GB2282054B (en) | 1993-08-31 | 1997-05-07 | Kimberly Clark Co | Disposable panty |
US6168585B1 (en) | 1993-12-15 | 2001-01-02 | Kimberely-Clark Worldwide, Inc. | Disposable training pant with elastically suspended absorbent assembly |
US6149637A (en) * | 1994-01-03 | 2000-11-21 | The Procter & Gamble Company | Elastomeric disposable absorbent article and method of making same |
US5575782A (en) * | 1994-01-03 | 1996-11-19 | The Procter & Gamble Company | Garment-like disposable absorbent article having a bloused outer cover |
BR9508770A (en) * | 1994-08-24 | 1998-06-02 | Paragon Trade Brands Inc | Absorbent article and method of making an absorbent article |
US5569234A (en) * | 1995-04-03 | 1996-10-29 | The Procter & Gamble Company | Disposable pull-on pant |
AU5564396A (en) * | 1995-05-12 | 1996-11-29 | Procter & Gamble Company, The | Disposable pull-on absorbent article with multi-directional extensible side panels |
US5743994A (en) * | 1995-11-06 | 1998-04-28 | Kimberly-Clark Worldwide, Inc. | Apparatus for making an absorbent article with asymmetric leg elastics |
US5685874A (en) * | 1996-02-22 | 1997-11-11 | The Procter & Gamble Company | Disposable pull-on pant |
JP2945336B2 (en) * | 1996-02-26 | 1999-09-06 | 白十字株式会社 | Disposable diapers |
JP3820043B2 (en) * | 1998-12-28 | 2006-09-13 | ユニ・チャーム株式会社 | Disposable diapers |
IT1308186B1 (en) * | 1999-02-12 | 2001-12-07 | Davide Viola | DISPOSABLE PAN OF THE PANT TYPE AND EQUIPMENT EMETHODY FOR ITS MANUFACTURE. |
JP4024507B2 (en) * | 2001-10-01 | 2007-12-19 | ユニ・チャーム株式会社 | Disposable diapers |
US7604624B2 (en) | 2003-05-30 | 2009-10-20 | Kimberly-Clark Worldwide, Inc. | Disposable absorbent article with overlapping absorbent assembly secured to front and back panels |
US7264686B2 (en) | 2003-12-12 | 2007-09-04 | Kimberly-Clark Worldwide, Inc. | Method of forming a waist band on an absorbent article |
JP2006149588A (en) * | 2004-11-29 | 2006-06-15 | Daio Paper Corp | Disposable paper diaper |
US20070066952A1 (en) * | 2005-09-21 | 2007-03-22 | Lavon Gary D | Disposable absorbent article having deployable belt strips |
US20070066953A1 (en) * | 2005-09-21 | 2007-03-22 | Lavon Gary D | Disposable absorbent article having deployable belt strips |
US20070066951A1 (en) * | 2005-09-21 | 2007-03-22 | Lavon Gary D | Disposable absorbent article having deployable belt strips |
US7320684B2 (en) * | 2005-09-21 | 2008-01-22 | The Procter & Gamble Company | Disposable absorbent article having deployable belt strips |
JP5185737B2 (en) * | 2008-08-28 | 2013-04-17 | ユニ・チャーム株式会社 | Wearing article |
JP2009082737A (en) * | 2009-01-14 | 2009-04-23 | Japan Absorbent Technology Institute | Absorber product |
JP6438845B2 (en) * | 2015-05-29 | 2018-12-19 | ユニ・チャーム株式会社 | Absorbent article manufacturing method and absorbent article manufacturing apparatus |
JP6019174B1 (en) * | 2015-06-03 | 2016-11-02 | ユニ・チャーム株式会社 | Absorbent article manufacturing method, absorbent article manufacturing apparatus, and absorbent article |
JP6019175B1 (en) * | 2015-06-03 | 2016-11-02 | ユニ・チャーム株式会社 | Absorbent article manufacturing method and manufacturing apparatus |
JP6560915B2 (en) * | 2015-06-29 | 2019-08-14 | ユニ・チャーム株式会社 | Absorbent articles |
JP6558979B2 (en) * | 2015-06-29 | 2019-08-14 | ユニ・チャーム株式会社 | Absorbent articles |
JP6419114B2 (en) * | 2016-06-27 | 2018-11-07 | ユニ・チャーム株式会社 | Pants-type absorbent article |
IT201800004890A1 (en) * | 2018-04-27 | 2019-10-27 | ABSORBENT STRUCTURE AND RELATED ARTICLE INCLUDING SAID ABSORBENT STRUCTURE | |
IT202000013339A1 (en) * | 2020-06-05 | 2021-12-05 | Fameccanica Data Spa | PROCEDURE AND EQUIPMENT FOR THE PRODUCTION OF ABSORBENT SANITARY ITEMS AND RELATED ABSORBENT SANITARY ITEMS |
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CH282061A (en) * | 1950-05-09 | 1952-04-15 | Ida Marti S Erben Fa | Waterproof panties for baby diapers. |
US2977957A (en) * | 1957-08-28 | 1961-04-04 | Napette Sanitary Napkin Holder | Sanitary napkin holders and holder units |
CH421025A (en) * | 1965-05-20 | 1966-09-30 | Parravicini Flora | Underpants |
US4315508A (en) * | 1980-03-31 | 1982-02-16 | Kimberly-Clark Corporation | Self-centering multiple use garment suspension system |
FR2546745B1 (en) * | 1983-06-01 | 1990-07-13 | Kimberly Clark Co | SINGLE-USE INCONTINENCE GARMENT |
US4771483A (en) * | 1984-05-16 | 1988-09-20 | Boussac Saint Freres B.S.F. | Pants having an elastic belt, and process for the manufacture thereof |
PH26871A (en) * | 1986-03-31 | 1992-11-16 | Uni Charm Corp | Disposable diaper |
US4904249A (en) * | 1988-06-06 | 1990-02-27 | Kimberly-Clark Corporation | Absorbent undergarment with fluid transfer layer and elasticized crotch design |
JP3107919U (en) * | 2004-09-27 | 2005-04-07 | 孝平 塚越 | Wood chip pile gauge |
-
1990
- 1990-05-24 JP JP2134439A patent/JP3033833B2/en not_active Expired - Lifetime
-
1991
- 1991-05-21 AU AU77221/91A patent/AU644874B2/en not_active Expired
- 1991-05-22 CA CA 2043016 patent/CA2043016C/en not_active Expired - Lifetime
- 1991-05-23 GB GB9111200A patent/GB2244909B/en not_active Expired - Lifetime
- 1991-05-24 KR KR91007406U patent/KR0111423Y1/en not_active IP Right Cessation
- 1991-05-24 DE DE59106287T patent/DE59106287D1/en not_active Expired - Fee Related
- 1991-05-24 EP EP19910108437 patent/EP0460467B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0460467B1 (en) | 1995-08-23 |
GB2244909A (en) | 1991-12-18 |
KR0111423Y1 (en) | 1997-12-16 |
AU7722191A (en) | 1991-11-28 |
DE59106287D1 (en) | 1995-09-28 |
JP3033833B2 (en) | 2000-04-17 |
AU644874B2 (en) | 1993-12-23 |
CA2043016A1 (en) | 1991-11-25 |
EP0460467A1 (en) | 1991-12-11 |
JPH0428365A (en) | 1992-01-30 |
GB9111200D0 (en) | 1991-07-17 |
GB2244909B (en) | 1994-05-04 |
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