WO2017212886A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2017212886A1 WO2017212886A1 PCT/JP2017/018629 JP2017018629W WO2017212886A1 WO 2017212886 A1 WO2017212886 A1 WO 2017212886A1 JP 2017018629 W JP2017018629 W JP 2017018629W WO 2017212886 A1 WO2017212886 A1 WO 2017212886A1
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- WIPO (PCT)
- Prior art keywords
- main body
- region
- ventral
- absorbent
- absorbent main
- Prior art date
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- 0 C**(*CN)=C*1CC1 Chemical compound C**(*CN)=C*1CC1 0.000 description 1
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Classifications
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- 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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being 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
-
- 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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
-
- 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
-
- 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
- A61F13/49017—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
- 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
- A61F13/49058—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
- A61F13/4906—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis
- A61F13/49061—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming 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
- 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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
-
- 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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
- A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
- A61F13/4942—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier the barrier not being integral with the top- or back-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
- A61F13/45—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
- A61F13/515—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 characterised by the interconnection of the topsheet and the backsheet
Definitions
- the present invention relates to an absorbent article.
- Patent Document 1 discloses a disposable diaper 1 in which a leak-proof cuff (a leak-proof wall) 40 ⁇ / b> A is formed on both sides in the width direction of a main body (absorbent main body) provided with an absorbent core 12. Leakage of excrement is prevented by raising the leak-proof cuff 40A of the disposable diaper 1 in an upright state.
- a leak-proof cuff a leak-proof wall 40 ⁇ / b> A is formed on both sides in the width direction of a main body (absorbent main body) provided with an absorbent core 12. Leakage of excrement is prevented by raising the leak-proof cuff 40A of the disposable diaper 1 in an upright state.
- the present invention has been made in view of the above problems, and maintains the state of the planar portion formed at the distal end portion by joining leak-proof walls that are brought into contact with the wearer's body. This is to make it easier to make a gap between the absorbent article and the wearer's body, and to reduce the risk of excrement leaking to the outside.
- the main invention for achieving the above-mentioned object is an absorbent main body having a longitudinal direction, a width direction, and a thickness direction intersecting each other, an abdominal member disposed at one end of the absorbent main body, An absorbent article having a vertical direction, the absorbent main body having a pair of leak-proof walls at both ends.
- Each of the pair of leak-proof walls has a skin side portion provided with a plurality of elastic members, and a non-skin side portion arranged on the non-skin side from the skin side portion, and the skin side portion And a non-skin side portion where at least a part of the opposing surfaces facing each other is bonded, and the non-skin side portion is provided above the bonding portion in the vertical direction, and the opposing surfaces are not bonded to each other.
- a joining portion, and the joining portion is inside the tip of the leak-proof wall in the width direction.
- a absorbent article which is characterized in that overlaps with the ventral side member or the back side member.
- the flat portion formed at the distal end portion by joining the leak-proof walls to be brought into contact with the wearer's body It is easy to maintain this state, it is difficult to make a gap between the absorbent article and the wearer's body, and the risk of excrement leaking to the outside can be reduced.
- FIG. 1 is an outline front view which looked at diaper 1 of a 1st embodiment from the ventral side.
- FIG. 2 is a plan view of the diaper 1 in a developed and extended state.
- 3 is a cross-sectional view taken along the line XX in FIG. 4A is a cross-sectional view taken along the line AA in FIG. 4B is a cross-sectional view taken along the line BB in FIG. 4C is a cross-sectional view taken along the line CC in FIG.
- FIG. 5 is a plan view of the absorbent main body 10 in which the leak-proof wall 50 is expanded and extended.
- FIG. 6 is a diagram for explaining the region D in FIG. 4C.
- Drawing 7A is a figure explaining the wearing state of diaper 1 before excretion is performed.
- FIG. 7B is a diagram illustrating a wearing state of the diaper 1 after excretion is performed.
- Drawing 8A is a figure explaining the wearing state of diaper 100 (comparative example) before excretion is performed.
- FIG. 8B is a diagram illustrating a wearing state of the diaper 100 (comparative example) after excretion is performed.
- FIG. 9A is a diagram illustrating a part of the ventral central cross section in the width direction of the diaper 1 in a worn state.
- Drawing 9B is a figure explaining a part of back side central section of the width direction of diaper 1 in a wearing state.
- FIG. 10 is a plan view of the developed and extended state of the diaper 2 of the second embodiment.
- An absorptive main body having a longitudinal direction, a width direction, and a thickness direction intersecting each other, a ventral member disposed at one end of the absorptive main body, and disposed at the other end of the absorptive main body
- An absorbent article having a vertical direction, wherein the absorbent main body has a pair of leak-proof walls at both end portions, and the pair of leak-proof walls are:
- Each has a skin side part provided with a plurality of elastic members, and a non-skin side part arranged on the non-skin side from the skin side part, and the skin side part and the non-skin side part face each other.
- the absorbent main body does not contain excrement. Even when absorbed and heavier, it makes it easier to maintain the state of the flat part formed at the tip by joining leak-proof walls that are brought into contact with the wearer's body and worn with absorbent articles It is difficult to create a gap with the person's body, and the risk of excretion leaking to the outside can be reduced.
- the back side member in the vertical direction, is longer than the length of the ventral member, and the length of the region where the joint portion and the ventral member overlap is greater than the length of the joint portion. It is desirable that the length of the region where the dorsal members overlap is longer.
- the absorbent main body has an abdominal-side adhesive region where the absorbent main body and the abdominal member are bonded to each other at the end of the absorbent main body.
- the other side end portion has a back side adhesive region where the absorbent main body and the back side member are bonded, and the lower end of the ventral side member is below the vent side adhesive region. It is desirable that the lower end of the dorsal member is positioned below the dorsal bonding region.
- the wearer since the lower end part of the abdominal member or the lower end part of the dorsal member is not bonded to the absorbent main body, the wearer wears the absorbent article and further wears the clothes.
- the lower end of the abdominal member or the lower end of the dorsal member may be folded upward in contact with clothes. Even if the weight of the absorbent main body that absorbs excreta increases by wearing absorbent articles and clothes, the risk of the absorbent articles falling downward due to the folded part of the abdominal member or dorsal member is reduced. Thus, it is possible to further maintain the state of the planar portion of the leak-proof wall that contacts the wearer's body.
- no ventral elastic member is disposed in the region from the lower end of the ventral adhesive region to the lower end of the ventral member, or in the vertical direction It is desirable that a back elastic member is not disposed in a region from the lower end of the back side adhesive region to the lower end of the back side member.
- the lower end of the folded ventral member or the lower end of the folded back dorsal member is less likely to be contracted by the ventral elastic member or the dorsal elastic member. And the fear that an absorbent article may fall downward can be further reduced by the folded part of the back side member.
- the absorbent main body is provided on the skin side from the abdominal member and the back member, and the absorbent main body is disposed at an end portion on the one side of the absorbent main body.
- the abdomen side adhesion region where the abdomen side member was adhered, and the back side where the absorptive body and the back side member were adhered to the other end of the absorptive body It has an adhesion region, and in the width direction, the ventral side adhesion region is located on the inner side from both side ends of the absorbent main body, or the back side adhesion region of the absorbent main body It is desirable to be located inside the both ends.
- At least a part of the non-joined portion on the one side is provided on the ventral member and is located at the lowest position among the plurality of ventral elastic members along the width direction.
- a plurality of dorsal elastic members that are positioned below the ventral elastic member, or at least a part of the non-joining portion on the other side are provided in the dorsal side member, and are along the width direction. It is desirable that it is located below the back elastic member located at the lowermost position.
- the absorbent main body has a high-rigidity region having higher rigidity than the lower part of the absorbent main body on at least one of the one side and the other side. In the up-down direction, it is desirable that the end portion on either side of the joint portion overlaps at least a part of the high-rigidity region.
- the expansion and contraction due to the elastic member of the abdominal member or the back member is reduced by overlapping the high rigidity region of the absorbent main body and the end of the joint in the vertical direction. It is possible to make it easier to maintain the state of the planar portion formed at the tip by joining the leak-proof walls that are brought into contact with the wearer's body.
- FIG. 1 is a plan view of the diaper 1 in a developed and extended state
- FIG. 3 is a cross-sectional view taken along the line XX in FIG.
- extension state in FIG.
- each member for example, a back sheet 14 described later
- the dimensions of each member for example, a back sheet 14 described later
- FIG. 3 the scale in the thickness direction is changed for convenience.
- This diaper 1 has an up-down direction, a width direction, and a front-rear direction as three directions orthogonal to each other in the pants-type state of FIG.
- the front side and the rear side in the front-rear direction in the pants-type state are also referred to as “abdominal side” and “back side”, respectively.
- the diaper 1 in the unfolded state of FIG. 2, has a longitudinal direction and a width direction as three directions orthogonal to each other.
- the “one side” and “the other side” in the longitudinal direction in this unfolded state are also referred to as “abdominal side” and “back side”, respectively.
- the width direction in the unfolded state is the same direction as the width direction in the pants-type state.
- the longitudinal direction of the unfolded state is a direction along the vertical direction of the pants-type state.
- the direction perpendicular to the vertical direction (longitudinal direction) and the width direction is referred to as the “thickness direction”, and the side in contact with the wearer's skin is the “skin side”. And the opposite side is the “non-skin side”.
- the diaper 1 has the abdominal member 3, the back member 4, and the absorptive main body 10 in the longitudinal direction.
- the abdominal member 3 is a member that covers the abdomen of the wearer
- the back member 4 is a member that covers the back of the wearer
- the absorbent main body 10 is disposed on the crotch of the wearer and collects excrement. It is a member to absorb.
- the abdominal member 3 and the dorsal member 4 are stretched between the abdominal member 3 and the dorsal member 4 in a state where they are parallel and spaced apart from each other. ing.
- the absorbent main body 10 is folded in half from the unfolded state of FIG. 2 with the predetermined position CL10 in the longitudinal direction (vertical direction) of the absorbent main body 10 as a folding position, and the stomachs facing each other in the folded state are shown in FIG.
- the side member 3 and the back side member 4 are joined by welding or the like at the side end 3es and the side end 4es, the abdominal side member 3 and the back side member 4 are connected in a ring shape, as shown in FIG.
- the pants-type diaper 1 is formed with a waist opening BH and a pair of leg openings LH and LH.
- the ventral side adhesion region 3B is a region where an adhesive such as hot melt is applied and fixed.
- the lower end 3eb of the ventral member 3 is located on the other side of the ventral side adhesive region 3B in the longitudinal direction, and the ventral side adhesive region 3B is the side end 10e of the absorbent main body 10 in the width direction. It is located more inside.
- the lower end 3ed is positioned below the lower end of the ventral side adhesion region 3B in the vertical direction, and the ventral side of the rectangular region surrounded by the points a, b, c, d
- the region 3F between the lower end of the bonding region 3B and the lower end 3eb of the ventral member 3 is a region where the adhesive is not applied and the abdominal member 3 and the absorbent main body 10 are not bonded.
- the adhesive agent is applied to the region 3G between the side end of the abdominal side adhesion region 3B and the side end 10e of the absorbent main body 10 among the rectangular regions surrounded by the points a, b, c, and d.
- the abdominal member 3 and the absorbent main body 10 are not bonded to each other.
- the dorsal member 4 extends from the non-skin side to the end portion on the other side (back side) of the absorbent main body 10, specifically, a rectangular region surrounded by points e, f, g, and h in FIG. They are overlapped and bonded and fixed in the back side bonding region 4B.
- the back-side adhesion region 4B is a region where an adhesive such as hot melt is applied.
- the lower end 4eb of the back side member is located on one side of the back side adhesive region 4B, and in the width direction, the back side adhesive region 4B is from the side end 10e of the absorbent main body 10. Located inside.
- the lower end 4ed is positioned below the lower end of the back side adhesive region 4B in the vertical direction, and the back side of the rectangular region surrounded by the points e, f, g, h
- the adhesive is not applied to the region 4F between the lower end of the bonding region 4B and the lower end 4eb of the back side member 4, and the back side member 4 and the absorbent main body 10 are not bonded.
- an adhesive is applied to the region 4G between the side end of the back side adhesive region 4B and the side end 10e of the absorbent main body 10 in the rectangular region surrounded by the points e, f, g, and h.
- the back member 4 and the absorbent main body 10 are not bonded to each other.
- the elastic member 35a is not disposed in the region 3F between the lower end of the abdominal side adhesion region 3B and the lower end 3eb of the abdominal side member 3.
- elastic members 45a and 45lg are arranged in a region 4F between the lower end of the back side adhesive region 4B and the lower end 4eb of the back side member 4.
- the elastic member 35a is disposed above (one side) the region 3F
- the elastic members 45a and 45lg are disposed above (the other side) the region 4F.
- the absorptive main body 10 has a function of absorbing excrement such as urine, has a substantially rectangular shape in plan view as shown in FIG. 2, and has a center in the width direction while keeping its longitudinal direction along the vertical direction of the diaper 1. Is arranged.
- the absorbent main body 10 includes a liquid absorbent absorbent core 11 and a core wrap sheet 12 that covers the outer peripheral surface of the absorbent core 11.
- leak-proof walls 50 are provided on both sides of the absorbent main body 10 in the width direction. Details of the leak-proof wall 50 will be described later.
- the absorbent core 11 is formed by molding liquid absorbent fibers such as pulp fibers into a predetermined shape, and a super absorbent polymer (so-called SAP) or the like is mixed therein.
- the absorbent core 11 has a substantially hourglass shape in plan view.
- the core wrap sheet 12 is a liquid-permeable sheet member that covers the outer peripheral surface of the absorbent core 11, and tissue paper, nonwoven fabric, or the like can be used.
- the top sheet 13 is a liquid-permeable sheet member that is disposed on the skin side surface in the thickness direction of the absorbent core 11 and contacts the wearer's skin when worn.
- the top sheet 13 is formed of, for example, an air-through nonwoven fabric or a spunbond nonwoven fabric.
- the back sheet 14 is a liquid-impermeable sheet member that is disposed on the non-skin side in the thickness direction of the absorbent core 11 and constitutes a part of the outer layer of the diaper 1.
- the back sheet 14 is formed of, for example, a resin film.
- top sheet 13 and the back sheet 14 are joined to each other by bonding, welding, or the like at portions protruding from the absorbent core 11 in the longitudinal direction and the width direction, thereby absorbing between the top sheet 13 and the back sheet 14.
- the sex core 11 is held.
- a skin side sheet 31 positioned on the wearer's skin side and a non-skin side sheet 32 positioned on the wearer's non-skin side are overlapped in the thickness direction.
- the skin side sheet 31 and the non-skin side sheet 32 have a substantially rectangular shape having substantially the same shape.
- each is a flexible sheet
- a plurality of abdominal elastic members 35a such as thread rubber are sandwiched between the skin side sheet 31 and the non-skin side sheet 32 in a state of being stretched in the width direction at a predetermined expansion ratio. Has been. By this ventral elastic member 35a, the stretchability in the width direction is imparted to the ventral member 3 of the diaper 1.
- the back-side member 4 has a skin-side sheet 41 positioned on the skin side of the wearer and a non-skin-side member 42 positioned on the non-skin side of the wearer overlapped in the thickness direction.
- the skin side sheet 41 and the non-skin side sheet 42 have substantially the same shape, and have a narrow portion 40c in which the central portion in the longitudinal direction (CL10 side) becomes narrower inward in the width direction.
- each is a flexible sheet
- a plurality of back-side elastic members 45a such as thread rubber are sandwiched between the skin-side sheet 41 and the non-skin-side sheet 42 in a state where the back-side member 4 is extended in the width direction at a predetermined extension magnification. Has been.
- the back-side elastic member 45a gives the back-side member 4 of the diaper 1 stretchability in the width direction.
- the back side member 4 is provided with a plurality of back side leg elastic members 45lg between the skin side sheet 41 and the non-skin side sheet 42 in the thickness direction, similarly to the back side elastic member 45a.
- the dorsal leg-hole elastic member 45lg is arranged so as to be curved along the narrow portion 4c from the inner region in the longitudinal direction of the dorsal member 4 (position closer to the center in the longitudinal direction of the absorbent core 11).
- the back-side leg-hole elastic member 45lg is curved upward and diagonally from both sides in the width direction of the straight portion 45lgs to the outer side in the width direction at the center portion in the width direction.
- the curved portion 45lgc (FIG. 2).
- the leak-proof walls 50 are disposed along the longitudinal direction of the absorbent main body 10 (the vertical direction of the diaper 1) on both sides in the width direction of the absorbent main body 10, and from the side end of the absorbent main body 10 when the diaper 1 is worn. It stands up and it suppresses that excrement leaks to the outside of diaper 1.
- 4A is a sectional view taken along line AA in FIG. 2
- FIG. 4B is a sectional view taken along line BB in FIG. 2
- FIG. 4C is a sectional view taken along line CC in FIG.
- FIG. 5 is a plan view of the absorbent main body 10 in which the leak-proof wall 50 is expanded and extended.
- FIG. 6 is a diagram for explaining the region D in FIG. 4C. 4A to 4C and FIG. 6, the scale in the thickness direction is changed for convenience.
- the leak-proof wall 50 is formed by folding the sheet member 50s in the width direction along the folding lines f1 to f3 along the longitudinal direction.
- a flexible sheet member such as a nonwoven fabric can be used.
- a plurality of leak-proof wall elastic members 55 such as stretchable rubber thread along the longitudinal direction are joined to the leak-proof wall 50 in a state of being stretched at a predetermined expansion ratio.
- the leak-proof wall elastic members 551 to 555 are arranged side by side from the outside in the width direction to the inside.
- the plurality of leak-proof wall elastic members 55 give the leak-proof wall 50 stretchability along the longitudinal direction, and the leak-proof wall 50 stands up when the diaper 1 is worn.
- the quantity and arrangement of the leak-proof wall elastic members 55 are not limited to those shown in FIG. 5, and can be appropriately changed according to the use of the diaper 1.
- the inner end portion 50ei in the width direction of the leak-proof wall 50 (sheet member 50s) is formed between the absorbent core 11 and the back sheet 14 covered with the core wrap sheet 12 in the thickness direction. Glued and fixed between.
- the outer end 50ehyroid wall 50 projects outward in the width direction of the absorbent main body 10.
- the outer end 50e réelle is folded inward in the width direction with the fold line f1 as a base point, and the sheet members 50s are overlapped in the thickness direction with the leakproof wall elastic members 551 to 555 sandwiched therebetween, Are joined together.
- the outermost leak-proof wall elastic member 551 in the width direction is arranged at the position in the width direction of the fold line f1.
- the sheet member 50s is bent toward the non-skin side in the thickness direction and inside in the width direction with the folding line f2 as a base point.
- the position in the width direction of the fold line f2 is substantially the same as the position in the width direction of the leak-proof wall elastic member 554.
- the sheet member 50s is bent toward the skin side in the thickness direction and the inner side in the width direction with the folding line f3 as a base point.
- a leak-proof wall 50 bent in a substantially S shape as shown in FIGS. 4A to 4C and 6 is formed.
- the position of the fold line f ⁇ b> 3 becomes the base 50 rp when the leak-proof wall 50 is erected.
- the leakage preventing wall 50 has a skin side portion 51 formed on the most skin side in the thickness direction by folding the sheet member 50s from one side in the width direction to the other side.
- leak-proof wall elastic members 551 to 554 are provided between the fold line f1 and the fold line f2.
- a non-skin side portion 52 is formed on the non-skin side of the skin side portion 51 in the thickness direction.
- leak-proof wall elastic members 554 and 555 are provided between the fold line f2 and the fold line f3.
- the leak-proof wall elastic member 554 is arrange
- knob joint part 61 is provided in leak-proof wall 50.
- the knob joint 61 and a region on the inner side in the width direction from the portion where the knob joint 61 is formed are also referred to as a folded portion 53.
- a knob joint portion 61 indicated by a diagonally downward slanting left portion in FIG. 6 is provided in a region on the inner side in the width direction of the skin side portion 51 (non-skin side portion 52), and a folding portion 53 is formed. Yes.
- the knob joint portion 61 is formed by using an adhesive means using an adhesive such as a hot melt adhesive or a crimping means such as embossing.
- the knob joint 61 is provided on the inner side (center side in the width direction) than the tip of the leak-proof wall 50 in the width direction, and the tip of the leak-proof wall 50 where the knob joint 61 is not provided (width direction).
- the skin side 51 and the non-skin side 52 are not joined.
- region where the skin side part 51 and the non-skin side part 52 are joined is called the skin side independent part 54 among the skin side parts 51.
- the knob joint 61 is not provided in a region outside the knob joint 61 in the longitudinal direction. That is, in the leakage prevention wall 50, the opposing surfaces in the thickness direction of the leakage prevention wall 50 (sheet member 50 s) are joined to the region on the one end side and the region on the other side of the knob joint portion 61 in the longitudinal direction.
- the non-joining part 62 is not provided. In this non-joining part 62, since the skin side part 51 and the non-skin side part 52 of the leak-proof wall 50 are not joined as FIG. 4B shows, the folding part 53 is not formed, but the skin side part 51 The entire region in the width direction is the skin-side single part 54.
- end joints 63 are provided at both ends in the longitudinal direction of the leak-proof wall 50.
- the skin side part 51 and the non-skin side part 52 of the leak-proof wall 50 are joined, and the non-skin side part 52 and the top sheet 13 are joined (FIG. 4A etc.).
- the skin side part 51 and the non-skin side part 52 are fixed to the top sheet 13 at the end in the longitudinal direction of the leak-proof wall 50.
- a part of the knob joint 61 overlaps the back member 4 in the vertical direction. That is, as shown in FIG. 2, the other end of the knob joint 61 is located on the other side (upper side) of the lower end 4 eb of the back member 4. At this time, the knob joint portion 61 intersects with the back leg elastic member 45lg (straight portion 45lgs) and overlaps with the back leg elastic member 45lg in the vertical direction.
- Drawing 7A is a figure explaining the wearing state of diaper 1 before excretion is performed.
- FIG. 7B is a diagram illustrating a wearing state of the diaper 1 after excretion is performed.
- the skin side portion 51 disposed on the skin side of the leak-proof wall 50 comes into contact with the wearer's body. That is, it arrange
- the knob joint portion 61 has a high rigidity by being joined in a state where the skin side portion 51 and the non-skin side portion 52 are laminated. Therefore, when the contraction force by the leak-proof wall elastic members 554 and 555 acts, the skin side portion 51 is firmly pressed against the wearer's body while maintaining the surface shape.
- the skin-side single portion 54 of the skin-side portion 51 has a lower rigidity than the folding portion 53, and thus is easily deformed freely. Therefore, when the contraction force by the leak-proof wall elastic members 551 to 553 disposed on the skin-side single part 54 acts, the skin-side single part 54 pushes the skin side of the wearer while forming a curved surface according to the unevenness of the body. Hit. Thereby, the whole skin side part 51 of the leak-proof wall 50 can be made to fit a wearer's body by the surface.
- FIG. 8A is a figure explaining the wearing state of diaper 100 (comparative example) before excretion is performed.
- FIG. 8B is a diagram illustrating a wearing state of the diaper 100 (comparative example) after excretion is performed.
- the basic structure of the diaper 100 of the comparative example is substantially the same as that of the diaper 1 of the present embodiment, but the pinch joint 161 of the leak-proof wall of the diaper 100 is in the vertical direction for both the ventral member 3 and the back member 4 ( In the (longitudinal direction), the difference is that they do not overlap.
- a pair of leak-proof walls 150 are provided at both ends in the width direction of the absorbent main body 110 (absorbent core 111), and a plurality of elastic members 155 such as rubber thread are provided on the leak-proof walls 150 (the elastic member 1551 in FIG. 8A). ⁇ 1555), and the leak-proof wall 150 rises upward due to the contraction force by the elastic member 155.
- the skin side portion 151 of the leak-proof wall 150 forms a surface shape by the elastic members 1551 to 1555, and the skin side single portion 154 is a curved surface corresponding to the wearer's body. It is pressed against the skin side of the wearer while forming.
- the diaper 1 of the present embodiment includes a knob joint 61 in which the facing surfaces of the skin side part 51 provided on the leak-proof wall 50 and the non-skin side part 52 on the inner side in the width direction are joined, and a knob.
- a non-joining part 62 is provided above the joining part 61, and a part of the knob joining part 61 overlaps with the back member 4 in the vertical direction. That is, as shown in FIG. 2, the other end of the knob joint 61 overlaps the back member 4. Therefore, in the portion where the knob joint portion 61 and the back side member 4 overlap, a force acts in a direction in which the back side member 4 presses the skin side portion 51 and the non-skin side portion 52 of the leak-proof wall 50 against the skin side.
- the planar shape of the skin side portion 51 is easily maintained. That is, the conventional (FIG. 8A, FIG. 8B) diaper 100 wears the skin side portion 151 of the leak-proof wall 150 because the knob joint portion 61 and the back side member 4 (or the abdominal side member 3) are not overlapped.
- the diaper 1 of the present embodiment not only the elastic member 55 but also the back side member 4 is used to maintain the flat state in contact with the person's skin.
- the planar state in which 51 is brought into contact with the skin is maintained (FIG. 7B).
- the absorbent main body 10 including the skin side portion 51 and the non-skin side portion 61 is pressed further toward the skin side.
- the non-skin side portion 52 where the dorsal member 4 overlaps from the non-skin side by the dorsal side member 4 having the elastic members 45a and 45lg works to press the skin side portion 51 against the skin side. It becomes easy to maintain the planar state which contact
- the diaper 1 decided that a part of the knob
- the knob joint 61 and the ventral member 3 may overlap. Even when the knob joint 61 and the abdominal member 3 are overlapped, like the back member 4, it is easy to maintain the planar portion of the leak-proof wall 50 (skin side portion 51), and the diaper 1 It is possible to make it difficult to create a gap with the wearer's body.
- the end portion on one side and the end portion on the other side of the knob joint portion 61 overlap with the ventral member 3 and the back member 4 respectively.
- the back side member 3 or the abdominal side member 4 overlapped with the knob joint portion 61 can press the skin side portion 51 and the non-skin side portion 52 of the leak-proof wall 50 to the skin side more, It becomes easier to maintain the planar portion of the leak wall 50 (skin side portion 51).
- the knob joint 61 and the ventral member 3 are in the vertical direction (longitudinal direction). It is more preferable that the length of the region where the knob joint 61 and the back member 4 overlap is longer than the length of the overlapping region.
- the back side member 4 that needs to cover the buttocks is longer in the vertical direction than the abdominal side member 3. Therefore, in the vertical direction, the length of the region where the knob joint 61 and the dorsal member 4 overlap is longer than the length of the region where the knob joint 61 and the ventral member 3 overlap, thereby preventing leakage.
- the flat part of the wall 50 skin side part 51
- the gap between the diaper 1 and the wearer's body can be made more difficult.
- the absorbent main body 10 is provided on the skin side with respect to the abdominal member 3 and the back member 4, and one end of the absorbent main body 10 (points a, b, c). , D) and the other end of the absorbent main body 10 (points e, f, g, h).
- the back side adhesion region 4B for adhering the absorbent main body 10 and the back side member 4 is provided in the region surrounded by And the lower end 3eb of the abdominal member 3 is located below the abdominal side adhesion region 3B, and the lower end 4eb of the back side member 4 is located below the back side adhesion region 4B. That is, as shown in FIGS.
- an adhesive is applied to a region 3F between the lower end 3eb of the ventral member 3 and the ventral adhesive region 3B.
- the back member No adhesive is applied to a region 4F between the lower end 4eb of 4 and the back-side adhesive region 4B, and the back-side member 4 and the absorbent main body 10 are not bonded to each other.
- FIG. 9A is a diagram for explaining a part of the ventral central cross section in the width direction of the diaper 1 in a worn state.
- Drawing 9B is a figure explaining a part of back side central section of the width direction of diaper 1 in a wearing state.
- FIG. 9A when the wearer wears the diaper 1 and further wears clothes, the portion of the region 3F of the abdominal member 3 in contact with the clothes may be folded upward.
- FIG. 9B the portion of the region 4F of the back member 4 that is in contact with the clothes may be folded upward.
- the region 3F (region 4F) that is not bonded to the absorbent main body 10 in the abdominal member 3 (back member 4) is folded upward, and between the wearer's abdomen (back) and clothing.
- the folded portion (regions 3F, 4F) is applied to the garment. Since it becomes easy to be caught, even when the absorbent main body 10 becomes heavy, the diaper 1 is more than when the region 3F (region 4F) is bonded to the absorbent main body 10 and the abdominal member 3 (back member 4). Can be made difficult to hang down, and the risk of a gap between the planar portion of the leak-proof wall 50 and the body can be further reduced.
- the lower end 3eb of the ventral member 3 is positioned below the ventral adhesive region 3B, and the lower end 4eb of the dorsal member 4 is below the back adhesive region 4B.
- the lower end 3eb of the abdominal member 3 is located below the abdominal side adhesion region 3B, and the lower end 4eb of the back side member 4 is located below the back side adhesion region 4B. It can suppress that 1 hangs down below.
- the elastic member 35a is not disposed in the region 3F from the lower end of the abdominal side adhesion region 3B to the lower end 3eb of the abdominal side member 3 in the vertical direction.
- Elastic members 45a and 45lg are not arranged in the region 4F from the lower end of the region 4B to the lower end 4eb of the back member 4.
- the abdomen-side adhesive region 3B is located on the inner side from both side ends 10e of the absorbent main body 10, and the back-side adhesive region 4B is It is located inside the side ends 10e.
- attached in the width direction can be made narrower, and the movable range of a wearer's leg in the leg periphery opening LH can be expanded more. can do.
- the leg opening LH is narrowed, and the wearer is likely to narrow the range in which the leg can be moved. Therefore, in the diaper 1, in the width direction, the abdominal side adhesion region 3B (back side adhesion region 4B) is provided inside the both side ends 10e of the absorbent main body 10, thereby absorbing the excrement and increasing the absorption. While supporting the sex main body 10, the leg-hole opening LH can be opened more widely, and the range of motion of the wearer's leg can be made wider.
- the abdominal side adhesive region 3B is positioned on the inner side of the both side ends 10e of the absorbent main body 10, and the back side adhesive region 4B is positioned on the both side ends 10e of the absorbent main body 10.
- the abdominal side adhesion region 3B may be located inside the both side ends 10e, and only the back side adhesion region 4B may be located inside the both side ends 10e.
- both the abdominal-side adhesive region 3B and the back-side adhesive region 4B are located on the inner side of the both side ends 10e of the absorbent main body 10, the range of motion around the wearer's legs can be further widened.
- FIG. 10 is a plan view of the developed and extended state of the diaper 2 of the second embodiment.
- the same reference numerals are given to those common to those described in the configuration of the diaper 1 according to the first embodiment, and the description thereof is omitted.
- the diaper 2 is a pants-type disposable diaper having an abdominal member 3, a dorsal member 4, and an absorbent main body 10 like the diaper 1.
- the abdominal side member 3 is overlapped from the non-skin side on the one end (abdominal side) end portion (rectangular region surrounded by points a, b, c, d) of the absorbent main body 10, and the abdominal side adhesion region
- the back side member 4 is overlapped from the non-skin side at the end (rectangular region surrounded by the points e, f, g, h) which is bonded and fixed at (not shown), It is bonded and fixed in a back side bonding region (not shown).
- the lower portion (longitudinal length) of the absorbent main body 10 is obtained.
- a high-rigidity region 3E having higher rigidity than the central portion in the direction is provided. The high-rigidity region 3E reduces the possibility that one end of the absorbent main body 10 is contracted inward in the width direction due to contraction of the elastic member 35a.
- the other end of the absorbent main body 10 (rectangular region surrounded by the points e, f, g, h) is squeezed in the thickness direction of the absorbent main body 10 to compress the absorbent main body 10.
- a high-rigidity region 4E having higher rigidity than the lower part (central part in the longitudinal direction) is provided. The high-rigidity region 4E reduces the possibility that the other end of the absorbent main body 10 is contracted inward in the width direction due to the contraction of the elastic member 45a.
- the diaper 2 folds the absorbent main body 10 in a folded state with a predetermined position CL10 in the longitudinal direction (vertical direction) of the absorbent main body 10 as a folding position, and the ventral member 3 and the back facing each other.
- a diaper in a pants-type state in which a waist opening BH (not shown) and a pair of leg opening LH, LH (not shown) are formed by welding and joining at the side end 3es and the side end 4es of the side member 4. 2.
- a substantially rectangular skin-side sheet 31 and a non-skin-side sheet 32 are stacked in the thickness direction, and an elastic member 35a such as rubber thread is sandwiched between the skin-side sheet 31 and the non-skin-side sheet. Are joined.
- the back-side member 4 includes a skin-side sheet 41 and a non-skin-side sheet having substantially the same shape having a narrow portion 4c in which the central portion (CL10 side) in the longitudinal direction becomes narrower inward in the width direction. 42 are stacked in the thickness direction.
- An elastic member 45a such as rubber thread is sandwiched and joined between the skin side sheet 41 and the non-skin side sheet. Similar to the elastic member 45 a, a plurality of back leg elastic members 45 lgc are arranged between the skin side sheet 41 and the non-skin side sheet 42 in the longitudinal inner region of the back side member 4 (the length of the absorbent core 11.
- the absorbent main body 10 includes an absorbent core 11, a core wrap sheet 12, a top sheet 13, and a back sheet 14, and a pair of leak-proof walls 50 are provided.
- the absorbent core 11 of the diaper 2 has a substantially rectangular shape in plan view, and is formed by molding liquid absorbent fibers such as pulp fibers mixed with SAP or the like.
- the leak-proof wall 50 is disposed along the longitudinal direction of the absorbent main body 10 in the same manner as the diaper 1, and when the diaper 2 is worn, the leakage prevention wall 50 stands up from the side end of the absorbent main body, and the excrement is placed outside the diaper 2. Suppresses leakage.
- the leak-proof wall 50 has a plurality of leak-proof wall elastic members 55 in the longitudinal direction, and raises the leak-proof wall when the diaper 2 is worn.
- the skin side part (not shown) and the non-skin side part (not shown) are provided by the folding
- the diaper 2 is provided with non-joining portions 62 on the upper side (abdomen side and back side) of the knob joint portion 61 in the vertical direction, and a part of the knob joint portion 61 overlaps the back member 4.
- a part of the non-joining portion 62 on the other side is below (longitudinal in the longitudinal direction) of the elastic member 45 a along the width direction of the back side member 4 and located below the lowermost elastic member 45 a. (Center side). That is, as shown in FIG. 10, since the knob joint 61 does not overlap the elastic member 45a and does not have the straight portion 45lgs of the back leg elastic member 45lg like the diaper 1, the width direction The elastic member along the knob and the knob joint 61 do not overlap. Therefore, the dorsal knob joint portion 61 can reduce the risk of being contracted in the width direction by the elastic member, and can more easily maintain the planar portion of the leak-proof wall 50 that contacts the wearer's body. it can.
- the end on the back side of the knob joint 61 and a part of the high-rigidity region 4 ⁇ / b> E overlap in the vertical direction. That is, a part of the knob joint 61 is provided on both sides of a part of the high rigidity region 4E. Since the high-rigidity region 4 ⁇ / b> E has high rigidity due to the squeezing, it is a region that is less likely to be deformed than a region where the squeezing is not performed (the central portion in the longitudinal direction of the absorbent main body 10).
- the portion of the knob joint 61 that overlaps with a part of the highly rigid high rigidity region 4E is not easily deformed by the high rigidity region 4E, so that the elastic members 45a and 45lg in the width direction. It can suppress that the planar part of the skin side part 51 of the leak-proof wall 50 deform
- the high rigidity regions 3E and 4E are provided in both the abdominal member 3 and the back member 4, but only the high rigidity region 3E or only the high rigidity region 4E may be used. At this time, in the vertical direction, the high-rigidity region 3E and the high-rigidity region 4E may partially overlap with the knob joint 61, or any one of the high-rigidity regions and the knob joint 61 may overlap. There may be.
- the planar part of the leak-proof wall 50 may deform
- these elastic members are not limited to a linear elastic member such as a so-called thread rubber.
- a planar (strip-shaped) elastic member having a predetermined width may be used.
- the sheet member constituting the leak-proof wall or the back sheet may be a stretchable sheet member (for example, a stretchable nonwoven fabric), so that an elastic member such as rubber thread need not be provided separately.
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Abstract
Description
本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。
互いに交差する長手方向と幅方向と厚さ方向を有する吸収性本体と、前記吸収性本体の一方側の端部に配置された腹側部材と、前記吸収性本体の他方側の端部に配置された背側部材と、を備え、上下方向を有する吸収性物品であって、前記吸収性本体は、両側端部に一対の防漏壁を有しており、前記一対の防漏壁は、それぞれ、複数の弾性部材を備えた肌側部と、前記肌側部より非肌側に配置された非肌側部とを有し、前記肌側部と前記非肌側部との互いに対向する対向面同士の少なくとも一部が接合された接合部と、前記上下方向において前記接合部よりも上方に設けられ、前記対向面同士が接合されていない非接合部とを備え、前記接合部は、前記幅方向において、前記防漏壁の先端よりも内側に設けられており、前記上下方向において、前記接合部の少なくとも一部が、前記腹側部材又は前記背側部材と重なっていることを特徴とする吸収性物品である。
<おむつ1の基本構成>
本実施形態で扱う吸収性物品の一例として、パンツ型使い捨ておむつ1(以下、「おむつ1」とも呼ぶ)の基本的な構成について説明する。図1は、第1実施形態のおむつ1を腹側から見た概略正面図である。図2は、おむつ1の展開且つ伸長状態の平面図であり、図3は、図2中のX-X断面図である。なお、図2における「伸長状態」とは、製品(おむつ1)を皺なく伸長させた状態、具体的には、おむつ1を構成する各部材(例えば、後述するバックシート14等)の寸法がその部材単体の寸法と一致又はそれに近い長さになるまで伸長した状態のことを言う。また、図3では便宜上厚さ方向における縮尺を変えている。
次に、防漏壁50について説明する。防漏壁50は、吸収性本体10の幅方向両側において、吸収性本体10の長手方向(おむつ1の上下方向)に沿って配置され、おむつ1の着用時には吸収性本体10の側端部から起立して、排泄物がおむつ1の外側に漏出するのを抑制する。図4Aは、図2中のA-A断面図であり、図4Bは、図2中のB-B断面図であり、図4Cは、図2中のC-C断面図である。図5は、防漏壁50を展開且つ伸長状態にした吸収性本体10の平面図である。図6は、図4Cの領域Dについて説明する図である。なお、図4A~図4C、図6では便宜上厚さ方向における縮尺を変えている。
まず、比較例として従来型の防漏壁150を有するパンツ型使い捨ておむつ100(以下、「おむつ100」とも呼ぶ)を着用する際に生じる問題について説明する。図8Aは、排泄が行われる前のおむつ100(比較例)の着用状態について説明する図である。図8Bは、排泄が行われた後のおむつ100(比較例)の着用状態について説明する図である。
<おむつ2の基本構成>
次に、本発明の第2実施形態に係るおむつ2の構成について、図10を参照して説明する。図10は、第2実施形態のおむつ2の展開且つ伸長状態の平面図である。図10において、第1実施形態にかかるおむつ1の構成において説明したものと共通するものについては、同一の符号を付してその説明を省略する。
以上、本発明の実施形態について説明したが、上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。また、本発明は、その趣旨を逸脱することなく、変更や改良され得るとともに、本発明にはその等価物が含まれるのは言うまでもない。例えば、以下に示すような変形が可能である。
Claims (8)
- 互いに交差する長手方向と幅方向と厚さ方向を有する吸収性本体と、
前記吸収性本体の一方側の端部に配置された腹側部材と、
前記吸収性本体の他方側の端部に配置された背側部材と、を備え、上下方向を有する吸収性物品であって、
前記吸収性本体は、両側端部に一対の防漏壁を有しており、
前記一対の防漏壁は、それぞれ、複数の弾性部材を備えた肌側部と、前記肌側部より非肌側に配置された非肌側部とを有し、
前記肌側部と前記非肌側部との互いに対向する対向面同士の少なくとも一部が接合された接合部と、
前記上下方向において前記接合部よりも上方に設けられ、前記対向面同士が接合されていない非接合部とを備え、
前記接合部は、前記幅方向において、前記防漏壁の先端よりも内側に設けられており、
前記上下方向において、前記接合部の少なくとも一部が、前記腹側部材又は前記背側部材と重なっていることを特徴とする吸収性物品。 - 請求項1に記載の吸収性物品であって、
前記上下方向において、前記接合部の少なくとも一部が、前記腹側部材及び背側部材とそれぞれ重なっていることを特徴とする吸収性物品。 - 請求項2に記載の吸収性物品であって、
前記上下方向において、
前記腹側部材の長さより前記背側部材の方が長く、
前記接合部と前記腹側部材が重なっている領域の長さより、
前記接合部と前記背側部材が重なっている領域の長さの方が、長いことを特徴とする吸収性物品。 - 請求項1から3のいずれか1項に記載の吸収性物品であって、
前記吸収性本体の前記一方側の端部には、前記吸収性本体と前記腹側部材とが接着された腹側接着領域を有しており、
前記吸収性本体の前記他方側の端部には、前記吸収性本体と前記背側部材とが接着された背側接着領域を有しており、
前記腹側部材の下端が前記腹側接着領域よりも下方に位置していること、又は、
前記背側部材の下端が前記背側接着領域よりも下方に位置していることを特徴とする吸収性物品。 - 請求項4に記載の吸収性物品であって、
前記上下方向において、前記腹側接着領域の下端から前記腹側部材の下端までの領域には、腹側弾性部材が配置されていないこと、又は、
前記上下方向において、前記背側接着領域の下端から前記背側部材の下端までの領域には、背側弾性部材が配置されていないことを特徴とする吸収性物品。 - 請求項1から5のいずれか1項に記載の吸収性物品であって、
前記吸収性本体は、前記腹側部材及び前記背側部材より肌側に設けられており、
前記吸収性本体の前記一方側の端部には、前記吸収性本体と前記腹側部材とが接着された腹側接着領域を有しており、
前記吸収性本体の前記他方側の端部には、前記吸収性本体と前記背側部材とが接着された背側接着領域を有しており、
前記幅方向において、
前記腹側接着領域が、前記吸収性本体の両側端より内側に位置していること、又は、
前記背側接着領域が、前記吸収性本体の両側端より内側に位置していることを特徴とする吸収性物品。 - 請求項1から6のいずれか1項に記載の吸収性物品であって、
前記一方側の前記非接合部の少なくとも一部が、前記腹側部材に設けられ、前記幅方向に沿った複数の腹側弾性部材のうちの最も下方に位置する前記腹側弾性部材より下方に位置していること、又は、
前記他方側の前記非接合部の少なくとも一部が、前記背側部材に設けられ、前記幅方向に沿った複数の背側弾性部材のうち最も下方に位置する前記背側弾性部材より下方に位置していることを特徴とする吸収性物品。 - 請求項1から7のいずれか1項に記載の吸収性物品であって、
前記吸収性本体は、前記一方側及び前記他方側のうちの少なくともいずれかの側に、前記吸収性本体の下部よりも剛性の高い高剛性領域を有しており、
前記上下方向において、
前記接合部の前記いずれかの側の端部と前記高剛性領域の少なくとも一部とが重なっていることを特徴とする吸収性物品。
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