CA2039011C - Disposable absorbent garments - Google Patents
Disposable absorbent garmentsInfo
- Publication number
- CA2039011C CA2039011C CA002039011A CA2039011A CA2039011C CA 2039011 C CA2039011 C CA 2039011C CA 002039011 A CA002039011 A CA 002039011A CA 2039011 A CA2039011 A CA 2039011A CA 2039011 C CA2039011 C CA 2039011C
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- stretchable
- backsheet
- panel
- bonded
- 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
- A61F13/53—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 absorbing medium
- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—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
- A61F13/49007—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
- A61F13/491—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
- A61F13/51—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
-
- 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
- A61F2013/49033—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in transversal 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
- A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
- A61F2013/49076—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped
-
- 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
- A61F2013/51429—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being elastomeric or stretchable sheet
-
- 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51441—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a fibrous material
-
- 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
- A61F13/53—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 absorbing medium
- A61F2013/530131—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 absorbing medium being made in fibre but being not pulp
- A61F2013/530343—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 absorbing medium being made in fibre but being not pulp being natural fibres
- A61F2013/53035—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 absorbing medium being made in fibre but being not pulp being natural fibres of cotton
-
- 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
- A61F13/53—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 absorbing medium
- A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
-
- 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
- A61F13/53—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 absorbing medium
- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/53908—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive
Abstract
Disposable garments such as disposable diaper or training pants comprising an absorbent panel sandwiched between a fluid-permeable, stretchable topsheet and a fluid-impermeable, stretchable backsheet, wherein said panel is bonded to said topsheet at dot-like locations at given intervals but not bonded to said backsheet.
Description
~3~
DISPOSABLE ABSORBENT GARMENTS
BACKGROUND OF THE INVENTION
The present invention relates to disposable absorbent garments, such as disposable diaper or training pants, comprising an absorbent panel sandwiched between a fluid-permeable topsheet and a fluid--impermeable backsheet.
The absorbent panel, for example, in disposable diaper has usually been fixedly bonded to the respective inner surfaces of the top- and backsheets with a plurality of stripe-like adhesive lines applied on said respective inner surfaces.
. For example, in the disposable training pants having the waist-line previously connected t:ogether in the form of a closed loop, it is required for the top- and backsheets to maintain their original stretchabilit:y in view of handling easiness for wearing and taking off dS well as wearing fitness. However, the arrangement that the absorbent panel is bonded to both the top- and backsheets as in the case of the above-mentioned diaper has inconveniently obstructed the stretchability thereof over a wide range and thus has been unsatisfactory for said easiness for wearing and taking off .as well as said wearing fitness.
Accordingly, it is an object of the present invention to provide disposable absorbent garments using stretchable 2 ~
materials as the top- and backsheets and comprising the absorbent panel fastened in such a manner that said panel can not move at hazard and the stretchability of said top-and backsheets, particularly, of said backsheet can be adequately maintained.
SUMM~RY OF THE INVENTION
The object set forth above is achieved, in accordance with the present invention by absorbent garments comprising an absorbent panel sandwiched between a fluid-permeable, stretchable topsheet and a fluid-impermeable, stretchable backsheet, characterized by that said panel is bonded to said topsheet at dot-like locations at given intervals but not bonded to said backsheet.
In one preferred embodiment, said topsheet comprises fluid-permeable, stretchable non-woven fabric while said backsheet comprises fluid-permeable, stretchable non-woven and fluid-impermeable, stretchable barrier sheet such as plastic or rubber film, and said panel comprises a mixture of fluffy pulp, superabsorbent polymer powder and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thickness.
In another preferred embodiment, said non-woven fabric of said backsheet is bonded to said :barrier sheet at dot-~3~
like locations at given intervals.
One of the important features of the present inventionsuch that, as has been mentioned above, said panel is not bonded to said backsheet is advantageous in that said backsheet is free to be stretchable without any restriction by sai.d panel so as to press said panel against the wearer's body with a good fitness.
The other important feature of the present invention such that said panel is bonded to said topsheet at dot-like locations at given intervals not only provides a more comfortable touch for the wearer's skin than the conventional garments having much more bonded locations but also allows liquid excretions to be rapidly and effectively absorbed from said topsheet into said panel.
Furthermore, the manner of bonding cooperates with the intrinsic function of said backsheet to reliably prevent said panel from moving at hazard.
BRIEF ~ESCRIPTION OF TH~ DRAWINGS
Training pants constructed as an embodiment o~ the present i.nvention is illustrated by l:he accompanying drawing, in which:
Fig. 1 is a perspective view of the training pants;
Fig. 2 is an exploded perspective view of the same;
Fig. 3 is a plan view showing the inner surface of the 2~3~
topsheet; and Fi~. ~ is a sectional view showing the absorbent panel covered with the top- and backsheets.
PREFE~RED EMBODIMENTS OF THE INVENTION
The invention will be described by way of embodiments in reference wi~h the accompanying drawings.
Fig. 1 is a perspective view of training pants 1 having a pair of leg-holes 2 and a waist-hole 3 provided with elastic members 4, 5, respectively.
Fig. 2 is an exploded perspective view of the pants 1 comprising a fluid-permeable, stretchable topsheet 6, a fluid-impermeable, stretchable backsheet 7, an absorbent panel 8 and said elastic members ~, 5 for the legs and the waist, respectively.
The topsheet 6 comprises a fluid-permeable, stretchable non-woven fabric. The backshee-t 7 comprises a fluid-permeable, stretchable non-woven ~abrlc 7a and a fluid-impermeable, stretchable barriex sheet such as plastic or rubber ~ilm 7b. The panel 8 is in so-called hourglass shape and comprises a mixture 2 flu~fy pulp, superabsorbent polymer powcler and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thickness so as to have a semi-rigidity.
2~9~
Opposite side edges of a crotch zone 1~ defined between front and rear sections 10, 11 of the top- and backsheets 6, 7 are formed with no-tched edges 13 to form the respective leg-holes 2. These notched edges 13 and a waist edge 14 are provided with the elastic members 4, 5, respectively. The elastic member 4 for leg-holes consists of a first submernber 4A and a second submember AB. The first and second submembers 4A, 4B intersect each other at points l~ing adjacent their opposite ends, defini:ng intersections adjacent middle points on the respective notched edges 13.
~ Sections 4A1, 4B1 of these submembers 4A, 4B extending from the respecti~e intersections to the associated outer ends are bonded to the inner surface(s) of the top- and/or backsheets along the respective notched edges 13 with adhesive and intermediate sections 4A2, 4B2 Of said submembers 4A, 4B are bonded to none of the components but merely positioned on the central underside of the panel ~.
The elastic member 5 for the waist-hole is bonded to the inner surface (5) of the top-- and/or backsheet along the waist edge 14 with hot melt type adhesive (not shown).
Outer peripheral edges of the top- and backsheets 6, 7 may be bonded to each other by bonding means such as said adhesive or welding (including ultrasonic welding).
Fig. 3 is a plan view showing the inner surface of the topsheet 6. The panel 8 is position.ed at a zone 16 2 ~
surrounded by chain line 15 on the inner surface of the topsheet 6. As shown by Fig. 4, the zone 16 of the topsheet 6 is intermittently bonded to the top surface of said panel 8 by dot-like bonding means 17 disposed at relative1y large intervals so as to prevent said zone 16 from floating off from the top surface of the panel 8 and thereby from obstructing inward transmission of li~uid excretions -through said zone 16 and to prevent said panel from moving at hazard. The bonding means 17 also may be selected from said various bonding means.
Preferably, the non-woven fabric 7a of the backsheet 7 and the sheet 7b are intermittently bonded to each other by dot-like said bonding means. If desired, said non-woven fabric 7a may be intermittently bonded, in the panel absent zone, to both the topsheet 6 and the sheet 7b with which said non-woven fabric 7a is in direcl, contact, by said dot-like bonding means.
A laminate thus assembled as disposable training pants may be longitudinally folded in two along the middle line thereof and then the opposite side edges 9 may be bonded together by said bonding means to form the completed pants 1 as illustrated by Fig. 1. It should be understood that the present invention may be embodied also as disposable diaper of open type including adhesive tape used to loop the waist line.
DISPOSABLE ABSORBENT GARMENTS
BACKGROUND OF THE INVENTION
The present invention relates to disposable absorbent garments, such as disposable diaper or training pants, comprising an absorbent panel sandwiched between a fluid-permeable topsheet and a fluid--impermeable backsheet.
The absorbent panel, for example, in disposable diaper has usually been fixedly bonded to the respective inner surfaces of the top- and backsheets with a plurality of stripe-like adhesive lines applied on said respective inner surfaces.
. For example, in the disposable training pants having the waist-line previously connected t:ogether in the form of a closed loop, it is required for the top- and backsheets to maintain their original stretchabilit:y in view of handling easiness for wearing and taking off dS well as wearing fitness. However, the arrangement that the absorbent panel is bonded to both the top- and backsheets as in the case of the above-mentioned diaper has inconveniently obstructed the stretchability thereof over a wide range and thus has been unsatisfactory for said easiness for wearing and taking off .as well as said wearing fitness.
Accordingly, it is an object of the present invention to provide disposable absorbent garments using stretchable 2 ~
materials as the top- and backsheets and comprising the absorbent panel fastened in such a manner that said panel can not move at hazard and the stretchability of said top-and backsheets, particularly, of said backsheet can be adequately maintained.
SUMM~RY OF THE INVENTION
The object set forth above is achieved, in accordance with the present invention by absorbent garments comprising an absorbent panel sandwiched between a fluid-permeable, stretchable topsheet and a fluid-impermeable, stretchable backsheet, characterized by that said panel is bonded to said topsheet at dot-like locations at given intervals but not bonded to said backsheet.
In one preferred embodiment, said topsheet comprises fluid-permeable, stretchable non-woven fabric while said backsheet comprises fluid-permeable, stretchable non-woven and fluid-impermeable, stretchable barrier sheet such as plastic or rubber film, and said panel comprises a mixture of fluffy pulp, superabsorbent polymer powder and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thickness.
In another preferred embodiment, said non-woven fabric of said backsheet is bonded to said :barrier sheet at dot-~3~
like locations at given intervals.
One of the important features of the present inventionsuch that, as has been mentioned above, said panel is not bonded to said backsheet is advantageous in that said backsheet is free to be stretchable without any restriction by sai.d panel so as to press said panel against the wearer's body with a good fitness.
The other important feature of the present invention such that said panel is bonded to said topsheet at dot-like locations at given intervals not only provides a more comfortable touch for the wearer's skin than the conventional garments having much more bonded locations but also allows liquid excretions to be rapidly and effectively absorbed from said topsheet into said panel.
Furthermore, the manner of bonding cooperates with the intrinsic function of said backsheet to reliably prevent said panel from moving at hazard.
BRIEF ~ESCRIPTION OF TH~ DRAWINGS
Training pants constructed as an embodiment o~ the present i.nvention is illustrated by l:he accompanying drawing, in which:
Fig. 1 is a perspective view of the training pants;
Fig. 2 is an exploded perspective view of the same;
Fig. 3 is a plan view showing the inner surface of the 2~3~
topsheet; and Fi~. ~ is a sectional view showing the absorbent panel covered with the top- and backsheets.
PREFE~RED EMBODIMENTS OF THE INVENTION
The invention will be described by way of embodiments in reference wi~h the accompanying drawings.
Fig. 1 is a perspective view of training pants 1 having a pair of leg-holes 2 and a waist-hole 3 provided with elastic members 4, 5, respectively.
Fig. 2 is an exploded perspective view of the pants 1 comprising a fluid-permeable, stretchable topsheet 6, a fluid-impermeable, stretchable backsheet 7, an absorbent panel 8 and said elastic members ~, 5 for the legs and the waist, respectively.
The topsheet 6 comprises a fluid-permeable, stretchable non-woven fabric. The backshee-t 7 comprises a fluid-permeable, stretchable non-woven ~abrlc 7a and a fluid-impermeable, stretchable barriex sheet such as plastic or rubber ~ilm 7b. The panel 8 is in so-called hourglass shape and comprises a mixture 2 flu~fy pulp, superabsorbent polymer powcler and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thickness so as to have a semi-rigidity.
2~9~
Opposite side edges of a crotch zone 1~ defined between front and rear sections 10, 11 of the top- and backsheets 6, 7 are formed with no-tched edges 13 to form the respective leg-holes 2. These notched edges 13 and a waist edge 14 are provided with the elastic members 4, 5, respectively. The elastic member 4 for leg-holes consists of a first submernber 4A and a second submember AB. The first and second submembers 4A, 4B intersect each other at points l~ing adjacent their opposite ends, defini:ng intersections adjacent middle points on the respective notched edges 13.
~ Sections 4A1, 4B1 of these submembers 4A, 4B extending from the respecti~e intersections to the associated outer ends are bonded to the inner surface(s) of the top- and/or backsheets along the respective notched edges 13 with adhesive and intermediate sections 4A2, 4B2 Of said submembers 4A, 4B are bonded to none of the components but merely positioned on the central underside of the panel ~.
The elastic member 5 for the waist-hole is bonded to the inner surface (5) of the top-- and/or backsheet along the waist edge 14 with hot melt type adhesive (not shown).
Outer peripheral edges of the top- and backsheets 6, 7 may be bonded to each other by bonding means such as said adhesive or welding (including ultrasonic welding).
Fig. 3 is a plan view showing the inner surface of the topsheet 6. The panel 8 is position.ed at a zone 16 2 ~
surrounded by chain line 15 on the inner surface of the topsheet 6. As shown by Fig. 4, the zone 16 of the topsheet 6 is intermittently bonded to the top surface of said panel 8 by dot-like bonding means 17 disposed at relative1y large intervals so as to prevent said zone 16 from floating off from the top surface of the panel 8 and thereby from obstructing inward transmission of li~uid excretions -through said zone 16 and to prevent said panel from moving at hazard. The bonding means 17 also may be selected from said various bonding means.
Preferably, the non-woven fabric 7a of the backsheet 7 and the sheet 7b are intermittently bonded to each other by dot-like said bonding means. If desired, said non-woven fabric 7a may be intermittently bonded, in the panel absent zone, to both the topsheet 6 and the sheet 7b with which said non-woven fabric 7a is in direcl, contact, by said dot-like bonding means.
A laminate thus assembled as disposable training pants may be longitudinally folded in two along the middle line thereof and then the opposite side edges 9 may be bonded together by said bonding means to form the completed pants 1 as illustrated by Fig. 1. It should be understood that the present invention may be embodied also as disposable diaper of open type including adhesive tape used to loop the waist line.
Claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
(1) Absorbent garments comprising an absorbent panel sandwiched between a fluid-permeable, stretchable topsheet and a fluid-impermeable, stretchable backsheet, characterized by that said panel is bonded to said topsheet at dot-like locations at given intervals but not bonded to said backsheet.
(2) Absorbent garments as recited in Claim (1), wherein said topsheet comprises fluid-permeable, stretchable non-woven fabric while said backsheet comprises fluid-permeable, stretchable non-woven and fluid-impermeable, stretchable barrier sheet such as plastic or rubber film, and said fluid-absorptive panel comprises a mixture of fluffy pulp, superabsorbent polymer powder and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thichness.
(3) Absprbent garments as recited in Claim (2), wherein said non-woven fabric of said backsheet is bonded to said barrier sheet at dot-like locations at given intervals.
(1) Absorbent garments comprising an absorbent panel sandwiched between a fluid-permeable, stretchable topsheet and a fluid-impermeable, stretchable backsheet, characterized by that said panel is bonded to said topsheet at dot-like locations at given intervals but not bonded to said backsheet.
(2) Absorbent garments as recited in Claim (1), wherein said topsheet comprises fluid-permeable, stretchable non-woven fabric while said backsheet comprises fluid-permeable, stretchable non-woven and fluid-impermeable, stretchable barrier sheet such as plastic or rubber film, and said fluid-absorptive panel comprises a mixture of fluffy pulp, superabsorbent polymer powder and thermoplastic fibres in which said fibres are welded together and thereby the entire mixture is compression-molded in the direction of its thichness.
(3) Absprbent garments as recited in Claim (2), wherein said non-woven fabric of said backsheet is bonded to said barrier sheet at dot-like locations at given intervals.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990032326U JPH0742422Y2 (en) | 1990-03-28 | 1990-03-28 | Pants-type absorbent article |
JP2-32326 | 1990-03-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2039011A1 CA2039011A1 (en) | 1991-09-29 |
CA2039011C true CA2039011C (en) | 1998-02-03 |
Family
ID=12355821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002039011A Expired - Fee Related CA2039011C (en) | 1990-03-28 | 1991-03-25 | Disposable absorbent garments |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0449271B1 (en) |
JP (1) | JPH0742422Y2 (en) |
KR (1) | KR970000945Y1 (en) |
AU (1) | AU632409B2 (en) |
CA (1) | CA2039011C (en) |
DE (1) | DE59105639D1 (en) |
GB (1) | GB2242348B (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992007535A1 (en) * | 1990-10-29 | 1992-05-14 | The Procter & Gamble Company | Sanitary napkin having components capable of separation in use |
ZA92308B (en) | 1991-09-11 | 1992-10-28 | Kimberly Clark Co | Thin absorbent article having rapid uptake of liquid |
JP3481238B2 (en) * | 1992-04-02 | 2003-12-22 | ザ、プロクター、エンド、ギャンブル、カンパニー | Absorbent with nonwoven topsheet having liquid impermeable area |
DE69328957T3 (en) * | 1992-08-13 | 2004-07-29 | Japan Absorbent Technology Institute | Stretchable absorbent article |
MX9300424A (en) | 1992-11-06 | 1994-05-31 | Kimberly Clark Co | FIBROUS LAMINATED FABRIC AND METHOD AND APPARATUS FOR THE MANUFACTURE OF THE SAME. |
US5370764A (en) | 1992-11-06 | 1994-12-06 | Kimberly-Clark Corporation | Apparatus for making film laminated material |
JPH0727523U (en) * | 1993-06-22 | 1995-05-23 | ユニ・チャーム株式会社 | Disposable undergarment |
FR2709415B1 (en) | 1993-08-31 | 1996-03-29 | Kimberly Clark Co | Disposable period panties. |
US5817394A (en) | 1993-11-08 | 1998-10-06 | Kimberly-Clark Corporation | Fibrous laminated web and method and apparatus for making the same and absorbent articles incorporating the same |
US7220335B2 (en) | 2002-10-01 | 2007-05-22 | Kimberly-Clark Worldwide, Inc. | Three-piece disposable undergarment with stretchable crotch member and method for the manufacture thereof |
US7837665B2 (en) | 2002-10-01 | 2010-11-23 | Kimberly-Clark Worldwide, Inc. | Three-piece disposable undergarment with folded crotch member |
US8043273B2 (en) * | 2002-12-19 | 2011-10-25 | Kimberly-Clark Worldwide, Inc. | Disposable undergarment with a stretchable absorbent insert and method for the use thereof |
US6979380B2 (en) | 2002-10-01 | 2005-12-27 | Kimberly-Clark Worldwide, Inc. | Three-piece disposable undergarment and method for the manufacture thereof |
US7871401B2 (en) | 2005-04-29 | 2011-01-18 | Kimberly-Clark Worldwide, Inc. | Absorbent article with improved fit |
JP2007175093A (en) * | 2005-12-27 | 2007-07-12 | Kao Corp | Absorbent article |
US8945324B2 (en) | 2011-04-04 | 2015-02-03 | Kimberly-Clark Worldwide, Inc. | Process for making elastomeric absorbent garments to reduce absorbent bunching |
US9675723B2 (en) | 2013-03-22 | 2017-06-13 | Hydroemission Corporation, Pte Ltd | Device and method for delivering volatile substances |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3924626A (en) * | 1972-12-08 | 1975-12-09 | Int Paper Co | Rectangular disposable diaper having a contoured absorbent pad |
JPS5178455A (en) * | 1974-12-27 | 1976-07-08 | Int Paper Co | |
US4069822A (en) * | 1975-10-30 | 1978-01-24 | The Procter & Gamble Company | Porous fibrous web to a substrate and articles therefrom |
ZA792723B (en) * | 1978-06-09 | 1981-01-28 | Colgate Palmolive Co | Disposable product with fluid penetrating top sheet |
JPS6356026U (en) * | 1986-09-30 | 1988-04-14 | ||
DE8704470U1 (en) * | 1987-03-27 | 1987-05-27 | Koester Kg, 8525 Uttenreuth, De | |
US4758466A (en) * | 1987-05-05 | 1988-07-19 | Personal Products Company | Foam-fiber composite and process |
US4904249A (en) * | 1988-06-06 | 1990-02-27 | Kimberly-Clark Corporation | Absorbent undergarment with fluid transfer layer and elasticized crotch design |
JP2672866B2 (en) * | 1989-08-10 | 1997-11-05 | ユニ・チャーム株式会社 | Disposable wearing articles |
-
1990
- 1990-03-28 JP JP1990032326U patent/JPH0742422Y2/en not_active Expired - Lifetime
-
1991
- 1991-03-22 AU AU73766/91A patent/AU632409B2/en not_active Ceased
- 1991-03-25 CA CA002039011A patent/CA2039011C/en not_active Expired - Fee Related
- 1991-03-26 GB GB9106395A patent/GB2242348B/en not_active Expired - Lifetime
- 1991-03-27 EP EP91104914A patent/EP0449271B1/en not_active Expired - Lifetime
- 1991-03-27 KR KR2019910004027U patent/KR970000945Y1/en not_active IP Right Cessation
- 1991-03-27 DE DE59105639T patent/DE59105639D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB9106395D0 (en) | 1991-05-15 |
AU7376691A (en) | 1991-10-03 |
GB2242348B (en) | 1994-05-11 |
JPH03122824U (en) | 1991-12-13 |
GB2242348A (en) | 1991-10-02 |
EP0449271A1 (en) | 1991-10-02 |
KR970000945Y1 (en) | 1997-02-14 |
DE59105639D1 (en) | 1995-07-13 |
AU632409B2 (en) | 1992-12-24 |
EP0449271B1 (en) | 1995-06-07 |
CA2039011A1 (en) | 1991-09-29 |
JPH0742422Y2 (en) | 1995-10-04 |
KR910016406U (en) | 1991-10-26 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request | ||
MKLA | Lapsed |