WO2018042874A1 - パンツ型吸収性物品 - Google Patents
パンツ型吸収性物品 Download PDFInfo
- Publication number
- WO2018042874A1 WO2018042874A1 PCT/JP2017/024694 JP2017024694W WO2018042874A1 WO 2018042874 A1 WO2018042874 A1 WO 2018042874A1 JP 2017024694 W JP2017024694 W JP 2017024694W WO 2018042874 A1 WO2018042874 A1 WO 2018042874A1
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- WO
- WIPO (PCT)
- Prior art keywords
- leg
- lateral
- region
- absorbent article
- waistline
- Prior art date
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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
- A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—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
- 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
- A61F13/4963—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs characterized by the seam
-
- 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
- A61F13/494—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
- A61F13/49466—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 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
- A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
-
- 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
- A61F2013/4948—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 elastic
Definitions
- the present invention relates to a pants-type absorbent article.
- the absorbent article there is a pants-type disposable diaper in which both sides of the front body and the back body are joined in advance.
- an outer sheet constituting a front body and a rear body is folded at a waist portion, a waist elastic material is disposed between the outer sheet and the folded portion, and between the waist elastic material and the folded portion.
- a disposable diaper in which a cushion-forming sheet is disposed is disclosed. Further, in this diaper, the folded portion of the outer sheet and the cushion forming sheet are intermittently joined in a direction along the waist. Therefore, a space is formed in the non-joined portion between the cushion forming sheet and the folded portion, and the stimulation given to the wearer's skin can be reduced.
- this diaper is provided with an integrated three-dimensional gather that rises along both side edges of the absorbent body in order to prevent side leakage of excrement.
- This three-dimensional gather extends from the crotch part to the front body and the back body, and intersects the waist elastic material.
- a pair of extended members provided with elastic members that extend in the lateral direction of the absorbent body to form leg openings and extend in the vertical direction.
- a protrusion part what is called a leg circumference gather
- the extension part By allowing the extension part to be in close contact with the wearer's leg, side leakage of excrement can be further prevented.
- this extension part extends from the crotch part to the front body and the back body like the above three-dimensional gather and is joined to them, the extension part is easily affected by the waist elastic material and contracts in the lateral direction. Or turn over.
- This invention is made
- a main invention for achieving the above object includes an absorbent body having a longitudinal direction and a lateral direction, including an absorbent body, the longitudinal direction of which is along the longitudinal direction, and one end of the absorbent body in the longitudinal direction.
- a pants-type absorbent article each of which is located on the side and the other end side, and has a pair of waistline portions provided with elastic members that expand and contract in the lateral direction, wherein the absorbent main body is in the lateral direction of the absorbent body And a pair of extending portions provided with elastic members extending and contracting in the longitudinal direction.
- the extending portions form leg-hole openings and the pair of waistline portions.
- FIG. 1 is a schematic perspective view of a pants-type disposable diaper 1.
- FIG. It is the schematic plan view which looked at the diaper 1 of the expansion
- 4A and 4B are views for explaining a method of forming the absorbent main body 10. It is explanatory drawing of the adhesion
- FIG. It is an enlarged view of the horizontal welding area
- FIG. It is a figure which shows the state which the leg periphery extension part 60 closely_contact
- FIG. 9A to FIG. 9C are diagrams for explaining modifications of the lateral welding region 62.
- a longitudinal direction and a transverse direction comprising an absorbent body, the longitudinal direction of the absorbent body being along the longitudinal direction, and being located at one end side and the other end side of the absorbent body in the longitudinal direction,
- a pants-type absorbent article having a pair of waistline portions each having an elastic member that expands and contracts in the lateral direction, wherein the absorbent main body extends to both lateral sides of the absorbent body, and the longitudinal A pair of extending portions provided with elastic members extending and contracting in the direction, and the extending portions form leg opening portions and overlap with at least one of the pair of waist portions in the vertical direction
- a welding region having a predetermined length in the lateral direction at the overlapping portion of the extending portion, wherein the extending portion and the waistline portion are joined to each other in at least a part of the overlapping portion.
- Pants characterized by It is an absorbent article.
- the lateral rigidity of the overlapping portion is increased by the welded region, so that the shrinkage of the overlapping portion in the lateral direction can be suppressed. Therefore, it is easy to maintain the state in which the extending part has a width in the lateral direction, the extending part can be in close contact with the wearer's leg, and leakage from the leg is suppressed.
- the plurality of elastic members that expand and contract in the lateral direction are arranged at intervals in the longitudinal direction, and in the overlapping portion in the extension portion, The plurality of welding regions are arranged at intervals in the vertical direction, and the vertical direction of the plurality of elastic members arranged on the waistline portion is larger than the vertical interval between the plurality of welding regions.
- the overlapping portion has a non-joined region where the extension portion and the waistline portion are not joined at a position corresponding to the lower end portion of the waistline portion in the longitudinal direction.
- the pants-type absorbent article is characterized in that the welded region is disposed in the non-bonded region.
- the non-joining region that is the boundary between the overlapping portion and the other extension portion is less likely to shrink in the lateral direction. Therefore, the portion of the extension other than the overlapping portion, that is, the portion forming the leg opening is easily maintained in a state having a width in the lateral direction, and can be closely adhered to the wearer's leg on the surface. Leakage is more reliably suppressed.
- Such a pant-type absorbent article wherein the welded region and the elastic member disposed in the waistline portion do not overlap in a plan view in the thickness direction of the extension portion. It is an absorbent article.
- the welding region includes a first welding region and a second welding region located on the non-skin side of the first welding region in the thickness direction of the extending portion. It is a pants type absorbent article characterized by having.
- the rigidity of the overlapping portion in the lateral direction is further increased, and the shrinkage of the overlapping portion in the lateral direction is further suppressed. Therefore, the state in which the extending portion has a width in the lateral direction is easily maintained, and leakage from the leg periphery is more reliably suppressed.
- Such a pant-type absorbent article wherein the first weld region and the second weld region do not overlap in plan view in the thickness direction. It is an article.
- the welding region exists in a wider plane range of the overlapping portion, the rigidity of the wider planar range of the overlapping portion is increased, and the overlapping portion contracts in the lateral direction. Is suppressed. Therefore, the state in which the extending portion has a width in the lateral direction is easily maintained, and leakage from the leg periphery is more reliably suppressed.
- Such a pant-type absorbent article wherein the elastic member disposed in the waistline portion has a discontinuous portion at a portion overlapping the absorber in the thickness direction of the waistline portion.
- This is a mold absorbent article.
- the absorber is not easily affected by the contraction of the elastic member disposed in the waistline portion, and the absorber is prevented from being warped. Therefore, since an absorber can closely_contact
- the pants-type disposable diaper of this embodiment can be used for both infants and adults.
- the pants-type absorbent article according to the present invention can be used as, for example, a sanitary shorts napkin other than disposable diapers.
- FIG. 1 is a schematic perspective view of a pants-type disposable diaper 1 (hereinafter referred to as “diaper”).
- FIG. 2 is a schematic plan view of the developed and extended diaper 1 as viewed from the side of the skin.
- FIG. 3 is a schematic sectional view of the diaper 1.
- 4A and 4B are views for explaining a method of forming the absorbent main body 10.
- FIG. 5 is an explanatory diagram of the bonding region 40 between the absorbent main body 10 and the pair of waist portions 20 and 30.
- drawings other than FIG. 1 show a state in which the elastic member included in the diaper 1 is extended to the extent that the heel of the diaper 1 cannot be visually recognized. Specifically, a state is shown in which each member (for example, an exterior sheet 14 described later) constituting the diaper 1 is stretched until the dimension of the member coincides with or close to the dimension of the member itself.
- the diaper 1 which is a pants type has a vertical direction, a horizontal direction, and a front-rear direction, and the diaper 1 is formed with a waist opening BH and a pair of leg openings LH.
- the waist opening BH side is the upper side
- the side that is the crotch of the wearer is the lower side.
- the side that becomes the wearer's stomach side is the front side
- the side that becomes the wearer's back side is the rear side.
- the diaper 1 has a thickness direction as shown in FIG. 3, and the side which contacts a wearer in thickness direction is made into the skin side, and the other side is made into the non-skin side.
- the diaper 1 is a so-called three-piece type, and has an absorbent main body 10 and a pair of waistline portions 20 and 30.
- the absorptive main body 10 has a substantially rectangular shape in plan view, and its longitudinal direction is along the vertical direction.
- the waist portions 20 and 30 have a substantially rectangular shape in plan view, and the longitudinal direction thereof is along the horizontal direction.
- the pair of waistline portions 20, 30, the one that covers the wearer's stomach side portion is also referred to as the front waistline portion 20, and the one that covers the wearer's back side portion is also referred to as the back waistline portion 30.
- the laterally central portion of the front waistline portion 20 is located on one end side in the longitudinal direction of the absorbent main body 10, and on the other end side in the longitudinal direction of the absorbent main body 10.
- the central portion in the lateral direction of the rear waistline portion 30 is located.
- the non-skin side surface of the absorptive main body 10 and the skin side surface of a pair of waist part 20,30 are joined by the adhesive agent etc. in the adhesion
- the absorbent main body 10 is folded in half at a substantially central portion in the longitudinal direction so that the front waistline portion 20 and the rear waistline portion 30 overlap with each other, and both side portions 20a in the lateral direction of the front waistline portion 20
- the diaper 1 becomes a pants type by joining the lateral side portions 30a of the rear waistline portion 30 in the lateral direction.
- Each of the front waistline portion 20 and the rear waistline portion 30 includes two flexible sheets (21 and 21, 31 and 31) such as non-woven fabric and a plurality of elastic members 22 and 32 such as thread rubber that expands and contracts in the lateral direction.
- the elastic members 22 and 32 are also referred to as the waistline elastic members 22 and 32.
- the plurality of waistline elastic members 22 and 32 are arranged side by side at intervals in the vertical direction, and are fixed between two sheets (21 and 21, 31 and 31) in a state of extending in the horizontal direction. Yes. Therefore, the front waistline part 20 and the back waistline part 30 can be expanded and contracted in the lateral direction, and fit around the wearer's waistline.
- the absorbent main body 10 includes a top sheet 11, an absorbent body 12, a back sheet 13, and an exterior sheet 14 in order from the skin side in the thickness direction.
- the top sheet 11 may be a liquid-permeable sheet, and examples thereof include a hydrophilic air-through nonwoven fabric and a spunbond nonwoven fabric.
- the back sheet 13 may be a liquid impermeable sheet, and examples thereof include a polyethylene film and a polypropylene film.
- the top sheet 11 and the back sheet 13 are sized to cover the entire absorbent body 12. Moreover, in this embodiment, the both sides of the horizontal direction of the top sheet 11 are folded in the non-skin side surface side of the absorber 12.
- the exterior sheet 14 may be a liquid permeable sheet or a liquid impermeable sheet. However, in this embodiment, since the leak-proof wall part 50 is formed by the exterior sheet 14, a hydrophobic SMS nonwoven fabric etc. can be illustrated as the exterior sheet 14. FIG.
- the absorbent body 12 has a rectangular shape in plan view, and includes an absorbent core 121 that absorbs liquid and a core wrap sheet 122 that covers the outer peripheral surface of the absorbent core 121.
- the absorbent core 121 is formed by molding a liquid absorbent material into a predetermined shape.
- the absorbent core 121 has a substantially hourglass shape with a narrowed central portion in the longitudinal direction.
- SAP superabsorbent polymer
- the core wrap sheet 122 include liquid permeable sheets such as tissue paper and nonwoven fabric. The core wrap sheet 122 may not be provided.
- the absorptive main body 10 includes a pair of leak-proof wall portions 50 and a pair of leg-hole extending portions 60 (a pair of extending portions).
- the laterally opposite side portions of the single exterior sheet 14 are folded to form a pair of leak-proof wall portions 50 and a pair of legs.
- the extension part 60 is integrally formed.
- the pair of leak-proof wall portions 50 are provided on both lateral sides of the absorbent body 12 along the longitudinal direction of the absorbent main body 10. In detail, it is provided over the position extended from the position which overlaps with the absorber 12 in a horizontal direction.
- Each leak-proof wall portion 50 includes an elastic member 51 that expands and contracts in the longitudinal direction (vertical direction of the diaper 1), and a pair of outer sheets 14 that form the leak-proof wall portion 50 are joined to the top sheet 11 and the back sheet 13.
- An end joint portion 52 and a side joint portion 53 are provided.
- the pair of end joints 52 are disposed at both ends in the longitudinal direction of the absorbent main body 10, the side joints 53 extend from one end to the other end in the longitudinal direction of the absorbent main body 10, and are more than the end joints 52.
- the leak-proof wall part 50 It is arranged outside in the horizontal direction. Therefore, in the leak-proof wall part 50, the site
- the pair of leg extension portions 60 are portions extending to both outer sides of the absorbent body 12 in the lateral direction. Specifically, a portion from the lateral outer end of the absorbent body 12 to the lateral outer end of the absorbent main body 10 is defined as a leg extension 60. Further, as shown in FIG. 5, each leg-hole extending portion 60 has a “leg-hole opening forming portion 60 a” that forms a leg-hole opening LH, and each of the front waistline portion 20 and the rear waistline portion 30 in the vertical direction. And a pair of “overlap portions 60b” that overlap each of the front waistline portion 20 and the rear waistline portion 30 in the thickness direction.
- each leg extension 60 extends and contracts in the longitudinal direction (vertical direction of the diaper 1), and is provided with four elastic members 61 (hereinafter referred to as leg elastic members 61) spaced apart in the lateral direction. Also called). Accordingly, the leg opening forming portion 60a in the leg extension portion 60 fits around the wearer's leg.
- each leg extension 60 is provided with a plurality of “lateral welding regions 62 (welding regions in the present invention)” that extend in the lateral direction and are inclined with respect to the lateral direction.
- the plurality of lateral welding regions 62 includes a plurality of first lateral welding regions 63 positioned on the skin side in the thickness direction and a plurality of second welding regions positioned on the non-skin side in the thickness direction.
- a horizontal welding region 64 As shown in FIG. 5, the plurality of first lateral welding regions 63 and the plurality of second lateral welding regions 64 are both spaced in the longitudinal direction over the entire longitudinal direction of the leg extension 60. They are arranged side by side.
- each leg extension 60 is provided with a “longitudinal weld region 66” extending along the longitudinal direction (longitudinal direction) on the inner side in the lateral direction than the lateral weld region 62.
- the vertical welding region 66 is also disposed over the entire region in the longitudinal direction of the leg extension portion 66, and is positioned on the non-skin side in the thickness direction and the first vertical welding region 67 located on the skin side in the thickness direction.
- a second vertical welding region 68 is also disposed over the entire region in the longitudinal direction of the leg extension portion 66, and is positioned on the non-skin side in the thickness direction and the first vertical welding region 67 located on the skin side in the thickness direction.
- a second vertical welding region 68 is also disposed over the entire region in the longitudinal direction of the leg extension portion 66, and is positioned on the non-skin side in the thickness direction and the first vertical welding region 67 located on the skin side in the thickness direction.
- Examples of elastic members (22, 32, 51, 61) included in the front waistline portion 20, the rear waistline portion 30, the leak-proof wall portion 50, and the leg-hole extension portion 60 include thread-like elastic members such as rubber thread. However, it is not limited to this. Instead of the thread rubber, for example, one or more sheet-like elastic members such as a stretchable film or a stretchable nonwoven fabric may be arranged. Further, the drawing shows only a portion (so-called effective length portion) that exhibits elasticity in the elastic member. Therefore, a portion of the elastic member that does not exhibit stretchability may exist outside the illustrated elastic member in the longitudinal direction. Further, the arrangement and the number of elastic members are not limited to the illustrated configuration.
- the laterally welded region 62 and the vertical welded region 66 are formed by partially welding the portion of the outer sheet 14 that is folded back into two layers. Is done. Specifically, a plurality of first lateral welding regions 63 are formed side by side in the longitudinal direction on the outer side in the lateral direction among the parts of the exterior sheet 14 having two layers. A plurality of second lateral welding regions 64 are formed side by side at intervals in the longitudinal direction. Further, a first vertical welding region 67 is formed on the outer side in the horizontal direction from the first horizontal welding region 63, and a second vertical welding region 68 is formed on the inner side in the horizontal direction from the second horizontal welding region 64. Is done.
- the welding regions 62 and 66 may be formed by a well-known welding method, for example, thermal welding, ultrasonic welding, welding by laser irradiation, or the like.
- the end joint portion 52 and the side joint portion 53 of the leak-proof wall portion 50 are disposed on the skin side surface of the two-layer exterior sheet 14 and outside the lateral welding region 62 in the lateral direction.
- An adhesive for forming is applied.
- the four leg-hole elastic members 61 are fixed to the skin side surface of the exterior sheet 14 and on the inner side in the lateral direction from the side joint portion 53 in a state of extending in the longitudinal direction.
- the back sheet 13 and the absorbent body 12 around which the top sheet 11 is wound are overlapped and bonded to the lateral center of the exterior sheet 14.
- both lateral sides of the exterior sheet 14 are folded back to the skin side in the thickness direction with respect to the top sheet 11.
- the absorbent main body 10 shown in FIG. 3 is formed. That is, both lateral sides of the exterior sheet 14 are folded into four layers.
- the first horizontal welding region 63 and the second horizontal welding region 64 are overlapped in the thickness direction, and the first vertical welding region 67 and the second vertical welding region 68 are stacked in the thickness direction. become.
- the four layers of the exterior sheet 14 are also referred to as a first sheet portion 14a, a second sheet portion 14b, a third sheet portion 14c, and a fourth sheet portion 14d in order from the skin side in the thickness direction.
- the leak-proof wall portion 50 is formed by the first sheet portion 14a and the second sheet portion 14b, and the leg extension portion 60 is formed by the first sheet portion 14a to the fourth sheet portion 14d.
- FIG. 6 is a diagram for explaining the features of the leg-hole extending portion 60.
- FIG. 7 is an enlarged view of the horizontal welding region 62 and the vertical welding region 66.
- FIG. 8 is a diagram showing a state in which the leg extension portion 60 is in close contact with the wearer. In FIG. 8, the leak-proof wall portion 50 and the like are omitted in order to eliminate the complexity of the drawing.
- the lateral width of the leg extension 60 is set to be relatively wide.
- the lateral width of the leg extension part 60 is set to about 40 mm. Therefore, the leg periphery extension part 60 can be closely_contact
- the leg width extending portion 60 has a wide lateral width, a plurality (four in this case) of leg leg elastic members 61 can be arranged side by side with a gap in the lateral direction.
- the expansion and contraction force of the leg extension part 60 necessary for preventing side leakage can be shared by the plurality of leg periphery elastic members 61. That is, since the elastic force of the leg elastic member 61 per one can be reduced, it is possible to prevent a burden on the skin due to local adhesion of the leg elastic member 61.
- the leg periphery extending portion 60 of the present embodiment is formed by the exterior sheet 14 of the absorbent main body 10 and has an overlapping portion 60b with the waistline portions 20 and 30.
- a part of the overlapping portion 60 b is joined to the waistline portions 20 and 30 by the bonding region 40. Therefore, the overlapping portion 60b is easily affected by the lateral contraction of the waistline portions 20 and 30.
- the overlapping portion 60b becomes large, so that it is easily affected by the waist portions 20 and 30.
- leg periphery opening formation part 60a in the leg periphery extension part 60 may shrink
- the leg hole opening forming part 60 a is turned and folded and individually wrapped, the leg hole opening forming part 60 a has a fold mark, and the leg hole opening forming part 60 a is broken. Will be worn in the state.
- the leg extension part 60 was set wide, there exists a possibility that the leg extension part 60 cannot be closely contact
- a plurality of lateral welding regions 62 having a predetermined length (L1 in FIG. 6) in the lateral direction are formed in the overlapping portion 60b of the leg-hole extending portion 60 with the waistline portions 20 and 30. It is arranged.
- the rigidity of the overlapping portion 60b in the lateral direction is increased by the lateral welding region 62. That is, the lateral welding region 62 resists the shrinkage of the waist portions 20 and 30 in the lateral direction, and the overlapping portion 60b is difficult to shrink in the lateral direction. As a result, the shrinkage and turning of the leg opening portion 60a in the lateral direction are also suppressed, and the leg opening portion 60a is easily maintained in a state having a width in the lateral direction (wide state).
- the leg hole opening forming portion 60a can be in close contact with the wearer's leg with a wide surface, and excrement leakage from the leg ring is suppressed.
- the wearer since the leg opening 60a extends substantially horizontally in the lateral direction, the wearer simply passes his / her leg through the leg opening LH of the diaper 1.
- the opening forming part 60a adheres to the wearer's leg around the surface. Therefore, for example, an operation such as taking out the leg opening 60a turned inside with a finger is unnecessary, and the diaper 1 is easily and appropriately attached.
- a wearer's buttocks can be coat
- the rigidity of the overlapping portion 60b is increased by arranging the horizontal welding region 62 in the overlapping portion 60b. Therefore, for example, compared with the case where the rigidity of the duplication part 60b is improved by arrange
- the horizontal welding region 62 of the present embodiment has a dot-shaped welding portion 69 (for example, a welding portion formed by one projection in a projection pattern provided on the outer peripheral surface of the embossing roller. ) Are formed in the horizontal direction. Specifically, two rows of dots that are inclined with respect to the horizontal direction and in which three welds 69 are arranged are shifted in the horizontal direction and arranged in the vertical direction. Similarly, the vertical welding region 66 is also formed by two rows of dots in which a large number of dot-shaped welding portions 69 are arranged in the vertical direction, shifted in the vertical direction and arranged in the horizontal direction.
- the weld regions 62 and 66 may be partially welded, and in this case as well, the rigidity of the overlapping portion 60b in the lateral direction is increased.
- the present invention is not limited to this.
- the planar shape of one protrusion provided on the outer peripheral surface of the embossing roller may be the same as the welding regions 62 and 66 so that the entire region of the welding regions 62 and 66 is welded. Good.
- the pressure applied during welding is likely to be constant, and the welding is stabilized.
- the predetermined length in the horizontal direction of the horizontal welding region 62 may be larger than 0 mm, but preferably has a certain length.
- the lateral length of the lateral weld region 62 is preferably in the range of 7.5 mm to 27.5 mm, more preferably about 17.5 mm. It is good to be.
- the predetermined length in the horizontal direction (for example, L1 in FIG. 6) of the horizontal welding region 62 is the horizontal length from one end of the horizontal welding region 62 to the other end. Therefore, the shape of the horizontal welding region 62 may be a shape (not shown) extending in parallel with the horizontal direction, or may be a shape inclined with respect to the horizontal direction as in the present embodiment. However, for example, when the lateral direction of the lateral welding region 62 corresponds to the axial direction of the embossing roller, the lateral welding region 62 is instantaneously formed if the lateral welding region 62 is parallel to the lateral direction. On the other hand, when the horizontal welding region 62 is inclined with respect to the horizontal direction, the horizontal welding region 62 is formed while pressure is sequentially applied with the rotation of the embossing roller, so that the welding is stabilized.
- the shape of the horizontal welding region 62 is not limited to the line shape in which the dot-like welded portions 69 are arranged in the horizontal direction as in the present embodiment, but may be, for example, a rectangle, trapezoid, ellipse, bowl shape, etc. that are long in the horizontal direction. May be.
- the horizontal weld region 62 may be formed by arranging not only the dot-shaped weld portion 69 but also other shape weld portions 69 such as a square or a triangle.
- region 62 may be distribute
- regions 62 of the duplication part 60b should just be one or more.
- the leg extension part 60 overlaps both the front waistline part 20 and the rear waistline part 30 and includes two overlapping parts 60b. It only needs to overlap with at least one of the front waistline portion 20 and the rear waistline portion 30.
- region 62 is distribute
- a configuration in which the lateral welding region 62 is arranged only at 60b may be employed.
- the wider state of the leg hole opening forming portion 60a is more easily maintained when the horizontal welding region 62 is disposed in both the overlapping portions 60b.
- a plurality of lateral welding regions 62 are also arranged in the leg hole opening forming part 60 a in the leg hole extending part 60. Therefore, the leg-hole opening forming portion 60a itself has high rigidity in the lateral direction, and the leg-hole opening forming portion 60a is not easily affected by the shrinkage of the waist portions 20, 30 in the horizontal direction. Accordingly, the wide state of the leg hole opening forming part 60a is more easily maintained, and the leg hole opening forming part 60a is in close contact with the wearer's leg around the surface, so that leakage from the leg periphery is more reliably suppressed. .
- the plurality of lateral weld regions 62 are arranged at regular intervals in the longitudinal direction over the entire region in the longitudinal direction of the leg extension 60 a, so that the lateral weld regions 62 are arranged. It becomes easy to adjust the formation interval. Therefore, manufacture of the diaper 1 becomes easy.
- the lateral welding region 62 does not have to be disposed in the leg hole opening forming portion 60a. Even in such a case, the wide state of the leg opening forming portion 60a is maintained by the lateral welding region 62 of the overlapping portion 60b. Moreover, in that case, since the number of the comparatively hard horizontal welding area
- a plurality of waistline elastic members 22 and 32 are arranged at intervals in the vertical direction in the waistline portions 20 and 30, and a plurality of lateral weld regions 62 are vertically arranged in the overlapping portion 60b. They are arranged at intervals. Then, the vertical intervals L3 of the plurality of waistline elastic members 22 and 32 are narrower than the vertical intervals L2 of the plurality of horizontal welding regions 62 arranged in the overlapping portion 60b (L2> L3).
- the number of the waistline elastic members 22 and 32 is not too small, and the fit of the waistline parts 20 and 30 to the wearer can be secured. That is, it is possible to ensure fitability of the waistline portions 20 and 30 to the wearer while suppressing the lateral contraction of the overlapping portion 60b by the lateral welding region 62 and suppressing leakage from the legs. Further, the number of the lateral welding regions 62 arranged in the overlapping portion 60b is not too large, and it is possible to prevent the burden on the skin from increasing due to the relatively hard lateral welding regions 62. Moreover, it can prevent that the horizontal welding area
- the present invention is not limited to the above, and the vertical interval L2 of the lateral welding region 62 disposed in the overlapping portion 60b may be set to be equal to or smaller than the vertical interval L3 of the waistline elastic members 22 and 32. In that case, since the number of the horizontal welding area
- the above comparison may be compared with the interval between the waistline elastic members 22 and 32 whose vertical position is the same as that of the overlapping portion 60b, or the interval between the waistline elastic members 22 and 32 above the overlapped portion 60b. May be compared.
- the interval between the lateral welding regions 62 and the interval between the waistline elastic members 22, 32 are not constant, at least one of the intervals between the waistline elastic members 22, 32 is smaller than at least one of the intervals between the lateral welding regions 62. Good.
- the lateral welding region 62 and the waistline elastic members 22 and 32 arranged in the overlapping portion 60b do not overlap in a plan view (FIG. 6) in the thickness direction of the leg-hole extending portion 60. That is, it is preferable that the lateral welding region 62 and the waistline elastic members 22 and 32 are shifted in the vertical direction. By doing so, it can prevent that the shrinkage
- the waistline elastic members 22 and 32 can be used effectively, and the fit of the waistline portions 20 and 30 to the wearer can be secured.
- the present invention is not limited to this, and some or all of the longitudinal positions of the plurality of lateral welding regions 62 may coincide with the longitudinal positions of the waistline elastic members 22 and 32.
- the waistline elastic members 22 a and 32 a located above the absorbent body 12 in the vertical direction are from one side portion of the waistline portions 20 and 30 in the lateral direction to the other side portion. It extends continuously.
- the waistline elastic members 22b and 32b whose vertical positions are the same as those of the absorbent body 12 extend from the lateral side of the waistline parts 20 and 30 to the lateral side of the absorbent body 12. And a part from the side part on the other side in the horizontal direction of the absorbent body 12 to a side part on the other side in the horizontal direction of the waistline parts 20 and 30. That is, the waistline elastic members 22b and 32b have discontinuous portions (for example, points a to b in FIG. 6) at portions overlapping the absorber 12 in the thickness direction of the waistline portions 20 and 30.
- the absorbent body 12 is not easily affected by the shrinkage of the waistline elastic members 22 and 32 in the lateral direction, and the shaking of the absorbent body 12 can be suppressed. Therefore, the absorbent body 12 can be brought into close contact with the wearer, and the excrement is firmly absorbed by the absorbent body 12, so that leakage from around the legs is suppressed. Moreover, the leg periphery opening formation part 60a can be extended substantially horizontally in the horizontal direction by suppressing the twist of the absorber 12. FIG. Therefore, the leg hole opening forming portion 60a can be brought into close contact with the wearer's leg around the surface, and leakage from the leg hole is suppressed.
- the horizontal welding region 62 arranged in the overlapping portion 60b and the horizontal welding region 62 arranged in the leg hole opening forming portion 60a are both extended with the first horizontal welding region 63. It has the 2nd horizontal welding area
- the rigidity with respect to the horizontal direction of the duplication part 60b and the leg periphery opening formation part 60a also increases by increasing the number of lamination
- the lateral welding region 62 can be made relatively soft, and the wearing comfort of the diaper 1 is improved. Further, as a result of attempting to increase the welding strength in order to increase the rigidity of the lateral welding region 62, it is possible to prevent the lateral welding region 62 from becoming too thin or having a hole.
- the present invention is not limited to the above, and in the overlapping portion 60b and the leg hole opening forming portion 60a, the plurality of lateral welding regions 62 may not be stacked in the thickness direction.
- the exterior sheet 14 may be folded into two layers, and the two layers may be welded to form the lateral welding region 62.
- three or more lateral welding regions 62 may be stacked in the thickness direction.
- the overlapping portion 60b is located at a position corresponding to the lower end portion of the waistline portions 20 and 30 in the vertical direction, and a non-joined region 41 where the overlapped portion 60b and the waistline portions 20 and 30 are not joined (enclosed by a thick line in FIG. 5).
- a lateral weld region 62 a is disposed in the non-joined region 41.
- the non-joining region 41 contracts in the lateral direction in the non-joining region 41 as compared to the joining region 40 (the hatched region in FIG. 5) with the waist portions 20 and 30. It is hard to be influenced by. Therefore, by providing the non-joining region 41 at the boundary between the overlapping portion 60b and the leg hole opening forming portion 60a, it becomes easy to maintain the wide state of the boundary. Further, the laterally welded region 62a is arranged in the boundary portion (non-bonded region 41), so that the wide state of the boundary portion is more easily maintained. As a result, the leg-hole opening forming portion 60a is also easily maintained in a wide state.
- the contraction force in the lateral direction of the waist portions 20 and 30 is blocked by the lateral welding region 62 of the non-joining region 41 and is not easily transmitted to the leg opening formation portion 60a.
- the wide state of the leg hole opening forming portion 60a is easily maintained. Therefore, the leg periphery opening formation part 60a can closely_contact
- the diaper 1 is provided with bonding regions 42, 43, and 44 shown in FIG. 3 in addition to the bonding region 40, and an adhesive is applied thereto.
- the first sheet portion 14 a and the second sheet portion 14 b of the exterior sheet 14 that form the leak-proof wall portion 50 are joined at the joining region 42.
- the non-skin side surface of the absorbent body 12 around which the top sheet 11 is wound and the back sheet 13 are joined at the joining region 43.
- the back sheet 13 and the exterior sheet 14 are joined at the joining region 44.
- the first of the exterior sheet 14 Between the sheet
- the third sheet portion 14c and the fourth sheet portion 14d of the exterior sheet 14 are not joined with an adhesive over the entire region in the longitudinal direction. That is, in the first sheet portion 14a and the second sheet portion 14b of the exterior sheet 14, the portion (for example, the portion 65 in FIG. 5) between the first lateral welding regions 63 arranged in the longitudinal direction is not joined, Since there is space, cushioning is high.
- the portion between the second lateral weld regions 64 aligned in the longitudinal direction is not joined and a space is generated, so that the cushion High nature.
- the comfort of wearing the diaper 1 is improved by improving the cushioning properties of the leg extension portion 60.
- the diaper 1 of this embodiment since the 1st horizontal welding area
- the leg extension portion 60 of the present embodiment is provided with a first vertical welding region 67 and a second vertical welding region 68. Therefore, even if the first horizontal weld region 63 is not joined in the first sheet portion 14a and the second sheet portion 14b, the first sheet weld portion 14a and the second sheet portion 14b are formed by the first vertical weld region 67. Are firmly joined. Similarly, the third sheet portion 14c and the fourth sheet portion 14d are also firmly joined by the second vertical welding region 68. Therefore, for example, even when the wearer's leg is caught, the first sheet portion 14a and the second sheet portion 14b are difficult to separate, and the third sheet portion 14c and the fourth sheet portion 14d are difficult to separate. The wide state of the rotation opening forming portion 60a is maintained. However, the first vertical welding region 67 and the second vertical welding region 68 may be omitted.
- the lateral welding region 62 of the present embodiment is inclined with respect to the lateral direction. Therefore, for example, compared to the case where the lateral welding region 62 is parallel to the lateral direction, the length in the longitudinal direction of the non-joined portions of the first sheet portion 14a and the second sheet portion 14b is short, and the third sheet portion 14c and the fourth sheet portion 4b.
- the longitudinal length of the non-joined portion of the sheet portion 14d is short. Therefore, the first sheet portion 14a and the second sheet portion 14b are difficult to separate, and the third sheet portion 14c and the fourth sheet portion 14d are difficult to separate. Therefore, the wide state of the leg hole opening forming portion 60a is maintained.
- the second sheet portion 14b of the exterior sheet 14 and the back sheet 13 or the third portion of the back sheet 13 and the exterior sheet 14 are provided. It is assumed that the sheet portion 14c may not be joined with an adhesive.
- both ends of the leg elastic member 61 that is not fixed in the extended state can be contracted, and both ends in the longitudinal direction of the leg extension 60 can be contracted. It is possible to prevent the leg-hole elastic member 61 from being exposed from the portion.
- the third sheet portion 14c and the fourth sheet portion 14d of the exterior sheet 14 are joined to the waist portions 20 and 30 in the adhesion region 40 and the lateral welding region 62, but the first sheet portion 14a and the fourth sheet portion 14d of the exterior sheet 14 Since the second sheet portion 14 b is separated from the waistline portions 20, 30, the second sheet portion 14 b is hardly affected by the shrinkage in the lateral direction of the waistline portions 20, 30. Therefore, the wide state of the leg hole opening forming portion 60a is easily maintained. Moreover, since the horizontal welding area
- leg hole opening forming part 60a in the laterally outer portion 60c of the leg extension part 60 between the second sheet part 14b of the exterior sheet 14 and the back sheet 13, and between the back sheet 13 and the exterior sheet. It is good to join between the 14th 3rd sheet
- the lateral welding region 62 is disposed on the inner side of the lateral outer end 60 d of the leg-hole extending portion 60.
- the laterally welded region 62 does not exist at the laterally outer end of the leg hole opening forming portion 60a and is flexible, so that the skin contact with the wearer's leg is good and the comfort of the diaper 1 is improved. .
- the force of pinching the wearer's leg is absorbed. Therefore, the wide state of the leg hole opening forming part 60a is easily maintained, the leg hole opening forming part 60a can be in close contact with the wearer's leg surface, and leakage from the leg periphery is suppressed.
- the back sheet 13 is provided between the absorber 12 and the exterior sheet 14 around which the top sheet 11 is wound, and between the folded exterior sheets 14, the back sheet 13 is provided. Is arranged. As shown in FIG. 2, the laterally outer end 13 a of the backsheet 13 is also arranged on the inner side of the laterally extending outer end 60 d of the leg extension part 60. Therefore, the back sheet 13 does not exist at the laterally outer end portion of the leg hole opening forming portion 60a and is flexible, so that the skin contact with the wearer's leg is good and the comfort of the diaper 1 is improved. . Moreover, since the force of pinching the wearer's legs is absorbed, the wide state of the leg opening formation portion 60a is maintained.
- leg-hole elastic members 61a to 61d are arranged in the lateral direction in the leg-hole opening forming portion 60a.
- the two leg-hole elastic members 61b and 61c in the middle of them intersect with the lateral welding region 62 arranged in the leg-hole opening forming portion 60a.
- the leg opening forming portion 60a in which the lateral welding region 62 is disposed has high rigidity, and the planar shape is easily maintained. Therefore, due to the contraction of the leg-hole elastic members 61b and 61c, the leg-hole opening forming portion 60a in which the lateral welding region 62 is disposed is lifted together as a wearer. Therefore, as shown in FIG. 7, the part of the leg hole opening forming portion 60 a in which the lateral welding region 62 is arranged can be in close contact with the surface of the wearer's leg, and leakage from the leg part is suppressed.
- the leg-hole elastic member 61a located at the innermost side in the horizontal direction is arranged at a position between the absorber 12 and the horizontal welding region 62 in the horizontal direction. Therefore, as shown in FIG. 7, due to the contraction of the leg-hole elastic member 61a, the laterally outer portion of the leg-hole elastic member 61a is lifted to the wearer side, and the standing height is secured. Therefore, the leg periphery opening formation part 60a can be closely_contact
- the leg elastic member 61d located on the outermost side in the horizontal direction is disposed at the position of the outer end 60d in the horizontal direction of the leg hole opening forming portion 60a. Therefore, the leg-hole opening forming portion 60a can be firmly attached to the wearer up to the position of the lateral outer end 60d by the contraction of the leg-hole elastic member 61d. In particular, even when the lateral welding region 62 does not reach the lateral outer end 60d of the leg opening portion 60a, the leg opening portion 60a can be in close contact with the wearer up to the position of the lateral outer end 60d.
- the leg periphery extension part 60 (leg circumference) is extended by the exterior sheet
- An opening forming portion 60a) is formed.
- the position on the non-skin side surface side of the absorbent body 12 is a non-skin side in the thickness direction with respect to the absorbent body 12 and is a position overlapping the absorbent body 12 in the lateral direction.
- the exterior sheet 14 has a width approximately equal to that of the absorbent body 12, extends outward from the exterior sheet 14 in the lateral direction, and is formed with a leg opening by a side sheet that is a separate member from the exterior sheet 14.
- 60a is formed.
- the joint between the exterior sheet 14 and the side sheet is exposed on the non-skin side surface around the leg hole opening forming portion 60a.
- the leg-hole opening forming portion 60a is formed by bonding a side sheet which is a member different from the exterior sheet 14 to the skin side surface of the exterior sheet 14 without folding both sides in the lateral direction of the exterior sheet 14. Is formed.
- the joint between the exterior sheet 14 and the side sheet is exposed at the lateral outer end of the leg hole opening forming portion 60a. If it does so, excretion will ooze out from the joint of a sheet.
- the seam of the sheet is exposed on the non-skin side surface around the leg hole opening forming portion 60a. Can be prevented.
- region 62 is distribute
- the leak-proof wall part 50 is also formed of the exterior sheet 14.
- the exterior sheet 14 extends from the position on the non-skin side surface side of the absorbent body 12 to both lateral sides. That is, the pair of leg-hole extending portions 60 and the pair of leak-proof wall portions 50 are formed by the common exterior sheet 14. Therefore, since the joint of the exterior sheet 14 is not exposed on the non-skin side surface of the absorbent main body 10, leakage from the joint of the sheet is suppressed. In addition, when the diaper 1 is worn, the pair of leg extension portions 60 are pulled up together. Therefore, the pair of leg extension portions 60 can be in close contact with the wearer's legs in a well-balanced manner, and leakage from the legs is suppressed.
- leg extension part 60 and the leak-proof wall part 50 are formed by the exterior sheet 14, or the pair of leg extension parts 60 and the pair of leak-proof wall parts 50 are the common exterior sheet 14.
- the number of materials can be reduced. Therefore, cost reduction can be achieved.
- the present invention is not limited thereto, and the leg extension 60 may be formed of a sheet different from the exterior sheet 14 (for example, a side sheet added to the exterior sheet 14).
- FIG. 9A to FIG. 9C are diagrams for explaining modifications of the lateral welding region 62.
- 9A to 9C are diagrams showing a state in which the first lateral welding region 63 and the second lateral welding region 64 are formed on the exterior sheet 14 during the manufacturing of the diaper 1, and the diagram on the right side is It is the figure which showed the positional relationship of the 1st horizontal welding area
- the first lateral welding region 63 and the second lateral welding region 64 are formed symmetrically with respect to the folding position f2 of the exterior sheet 14, that is, the direction of the inclination is Symmetrical and vertical position matches. Therefore, in each of the overlapping portion 60b and the leg hole opening forming portion 60a, the first lateral welding region 63 and the second lateral welding region 64 are arranged so as to overlap in the thickness direction.
- the present invention is not limited to this, and part or all of the first lateral welding region 63 and the second lateral welding region 64 may not overlap in a plan view in the thickness direction.
- the position on the plane (the position in the horizontal direction and the vertical direction) of the first lateral welding region 63 and the position on the plane of the second lateral welding region 64 may be off.
- the first lateral welding region 63 and the second lateral welding region 64 are formed by making the tilt direction symmetrical with respect to the folding position f2 and shifting the vertical position. Also good.
- the first lateral weld regions 63 and the second lateral weld regions 64 inclined in the same direction are alternately arranged in the longitudinal direction. Arranged at.
- the first lateral weld region 63 and the second lateral weld region 64 are formed with the same inclination direction with respect to the folding position f2 and with the vertical position shifted. May be.
- the first lateral weld region 63 and the second lateral weld region 64 that are inclined in the opposite direction are alternately arranged in the longitudinal direction in a plan view of the leg extension 60. Arranged at.
- the first lateral weld region 63 and the second lateral weld region 64 have the same inclination direction with respect to the folding position f2 and the same vertical position. It may be formed.
- the first lateral weld region 63 and the second lateral weld region 64 that are inclined in the opposite directions are arranged so as to intersect each other in plan view of the leg extension portion 60. .
- the first lateral welding region 63 and the second lateral welding region 64 may be completely displaced, and as shown in FIG. 9C, the first lateral welding region 63. And a part of the second lateral welding region 64 may overlap and the remaining part may be displaced.
- the first lateral weld region 63 and the second lateral weld region 64 are displaced, so that the overlapping portion 60b and the leg hole opening forming portion 60a have a wider planar range.
- region 62 will exist and the rigidity with respect to the horizontal direction of the duplication part 60b and the leg periphery opening formation part 60a will increase. Therefore, the overlapping portion 60b is not easily affected by the shrinkage of the waistline portions 20 and 30 in the lateral direction, the wide state of the leg opening forming portion 60a is easily maintained, and leakage from the leg periphery is suppressed.
- the pressure is sequentially increased with the rotation of the embossing roller, for example, at the time of welding. Since the horizontal welding region 62 is formed while being applied, the welding is stabilized. Although not shown, a part of the plurality of first lateral welding regions 63 overlaps with the second lateral welding region 64, and the remaining first lateral welding region 63 is connected to the second lateral welding region 64. The form which does not overlap may be sufficient.
- region 64 may differ, and the plane of 1st horizontal welding area
- the shape and size may be different.
- region 64 may differ in the duplication part 60b and the leg periphery opening formation part 60a.
- the number of the first lateral welding regions 63 and the number of the second lateral welding regions 64 may be different.
- the lateral rigidity of the leg extension portion 60 is increased. You can improve the skin feel while increasing.
- a diaper in which the exterior sheet 14 is integrated by connecting the front waistline portion 20 and the rear waistline 30 may be used.
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Abstract
Description
本発明は、上記のような問題に鑑みてなされたものであって、脚回りからの漏れが抑制されたパンツ型吸収性物品を提供することを目的とする。
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。
本発明に係るパンツ型吸収性物品として「パンツ型使い捨ておむつ」を例に挙げて以下の実施形態を説明する。本実施形態のパンツ型使い捨ておむつは乳幼児用としても大人用としても利用可能である。また、本発明に係るパンツ型吸収性物品は使い捨ておむつ以外にも、例えば生理用のショーツ型ナプキンとしても利用可能である。
図1はパンツ型使い捨ておむつ1(以下「おむつ」という)の概略斜視図である。図2は展開且つ伸長状態のおむつ1を肌側面側から見た概略平面図である。図3はおむつ1の概略断面図である。図4A及び図4Bは吸収性本体10の形成方法を説明する図である。図5は吸収性本体10と一対の胴回り部20,30の接着領域40の説明図である。なお、図1以外の図は、おむつ1の皺が視認できなくなる程度まで、おむつ1が備える弾性部材を伸長させ状態を示す。具体的には、おむつ1を構成する各部材(例えば後述する外装シート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寸法になるまで伸長させた状態を示す。
次に、一枚の外装シート14によって一対の防漏壁部50及び一対の脚回り延出部60が形成される方法について図4を参照しながら簡単に説明する。
まず、図4A及び図4Bの左側に示すように、外装シート14の横方向の両側部に防漏壁部50用の弾性部材51が長手方向に伸長した状態で固定される。その後、防漏壁部50用の弾性部材51が固定された横方向の位置を折り位置f1として、外装シート14の横方向の両側部が厚さ方向の肌側(横方向の内側)に折り返される。
図6は脚回り延出部60の特徴を説明する図である。図7は横溶着領域62及び縦溶着領域66の拡大図である。図8は脚回り延出部60が着用者に密着する状態を示す図である。なお、図8では図の煩雑さを解消するために防漏壁部50等を省略している。
図9Aから図9Cは横溶着領域62の変形例を説明する図である。図9Aから図9Cの左側の図は、おむつ1の製造途中において第1の横溶着領域63と第2の横溶着領域64を外装シート14に形成した状態の図であり、右側の図は、脚回り延出部60における第1の横溶着領域63と第2の横溶着領域64の位置関係を示した図である。
10 吸収性本体、11 トップシート、
12 吸収体、121 吸収性コア、122 コアラップシート、
13 バックシート、14 外装シート、
20 前胴回り部(胴回り部)、21 シート、21 シート、
22 胴回り弾性部材(横方向に伸縮する弾性部材)、
30 後胴回り部(胴回り部)、31 シート、31 シート、
32 胴回り弾性部材(横方向に伸縮する弾性部材)、
40 接着領域、41 非接合領域、42~44 接合領域、
50 防漏壁部、51 弾性部材、
52 エンド接合部、53 サイド接合部、
60 脚回り延出部(延出部)、
60a 脚回り開口形成部、60b 重複部、
61 脚回り弾性部材(縦方向に伸縮する弾性部材)、
62 横溶着領域(溶着領域)、
63 第1の横溶着領域(第1の溶着領域)、
64 第2の横溶着領域(第2の溶着領域)、
66 縦溶着領域、67 第1の縦溶着領域、
68 第2の縦溶着領域、69 溶着部、
LH 脚回り開口部、BH 胴回り開口部
Claims (7)
- 縦方向と横方向とを有し、
吸収体を備え、長手方向が前記縦方向に沿った吸収性本体と、
前記吸収性本体の前記長手方向の一端側及び他端側にそれぞれ位置し、前記横方向に伸縮する弾性部材を備える一対の胴回り部と、を有するパンツ型吸収性物品であって、
前記吸収性本体は、前記吸収体の前記横方向の両外側に延出し、且つ、前記縦方向に伸縮する弾性部材が配された一対の延出部を備え、
前記延出部は、脚回り開口部を形成するとともに、前記一対の胴回り部の少なくとも一方と前記縦方向において重複する重複部を有し、
前記重複部の少なくとも一部において、前記延出部と前記胴回り部とが接合されており、
前記延出部における前記重複部に、前記横方向に所定の長さを有する溶着領域が配されていることを特徴とするパンツ型吸収性物品。 - 請求項1に記載のパンツ型吸収性物品であって、
前記胴回り部において、前記横方向に伸縮する複数の前記弾性部材が前記縦方向に間隔を空けて配されており、
前記延出部における前記重複部において、複数の前記溶着領域が前記縦方向に間隔を空けて配されており、
複数の前記溶着領域の前記縦方向の間隔よりも、前記胴回り部に配された複数の前記弾性部材の前記縦方向の間隔の方が狭いことを特徴とするパンツ型吸収性物品。 - 請求項1又は請求項2に記載のパンツ型吸収性物品であって、
前記重複部は、前記縦方向において前記胴回り部の下端部に対応する位置に、前記延出部と前記胴回り部とが接合されていない非接合領域を有し、
前記非接合領域に前記溶着領域が配されていることを特徴とするパンツ型吸収性物品。 - 請求項1から請求項3の何れか1項に記載のパンツ型吸収性物品であって、
前記延出部の厚さ方向における平面視において、前記溶着領域と前記胴回り部に配された前記弾性部材とが重複していないことを特徴とするパンツ型吸収性物品。 - 請求項1から請求項4の何れか1項に記載のパンツ型吸収性物品であって、
前記溶着領域は、第1の溶着領域と、前記延出部の厚さ方向において前記第1の溶着領域よりも非肌側に位置する第2の溶着領域とを有することを特徴とするパンツ型吸収性物品。 - 請求項5に記載のパンツ型吸収性物品であって、
前記厚さ方向における平面視において、前記第1の溶着領域と前記第2の溶着領域の少なくとも一部が重複していないことを特徴とするパンツ型吸収性物品。 - 請求項1から請求項6の何れか1項に記載のパンツ型吸収性物品であって、
前記胴回り部に配された前記弾性部材は、前記胴回り部の厚さ方向において前記吸収体と重なる部位に不連続である部分を有することを特徴とするパンツ型吸収性物品。
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BR212019002325-4U BR212019002325Y1 (pt) | 2016-08-29 | 2017-07-05 | Artigo absorvente do tipo de puxar |
CN201790001190.6U CN210330913U (zh) | 2016-08-29 | 2017-07-05 | 短裤型吸收性物品 |
EP17845884.0A EP3482729B1 (en) | 2016-08-29 | 2017-07-05 | Pull-up type absorbent article |
EA201990600A EA037538B1 (ru) | 2016-08-29 | 2017-07-05 | Натягиваемое впитывающее изделие |
US16/326,710 US11337868B2 (en) | 2016-08-29 | 2017-07-05 | Pull-on absorbent article including leg-circumference extension sections with welded regions |
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JP2016167105A JP6751625B2 (ja) | 2016-08-29 | 2016-08-29 | パンツ型吸収性物品 |
JP2016-167105 | 2016-08-29 |
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EP (1) | EP3482729B1 (ja) |
JP (1) | JP6751625B2 (ja) |
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EP3482730B1 (en) * | 2016-08-29 | 2021-08-25 | Unicharm Corporation | Absorbent article and method for manufacturing pull-up absorbent article |
JP6397947B2 (ja) * | 2017-02-28 | 2018-09-26 | ユニ・チャーム株式会社 | パンツ型吸収性物品 |
JP2023142381A (ja) * | 2022-03-25 | 2023-10-05 | 株式会社リブドゥコーポレーション | 使い捨て吸収性物品 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005080859A (ja) * | 2003-09-08 | 2005-03-31 | Kao Corp | 複合伸縮部材及びその製造方法 |
JP2008168012A (ja) * | 2007-01-12 | 2008-07-24 | Uni Charm Corp | 使い捨てのパンツ型おむつの製造方法 |
JP2009160128A (ja) * | 2007-12-28 | 2009-07-23 | Daio Paper Corp | パンツ型使い捨ておむつ |
JP2010194228A (ja) * | 2009-02-27 | 2010-09-09 | Livedo Corporation | 使い捨て吸収性物品 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6123694A (en) * | 1997-05-09 | 2000-09-26 | Paragon Trade Brands | Disposable absorbent article with unitary leg gathers |
US6248097B1 (en) | 1998-08-06 | 2001-06-19 | Kimberly-Clark Worldwide, Inc. | Absorbent article with more conformable elastics |
US8043275B2 (en) * | 2001-12-19 | 2011-10-25 | Kimberly Clark Worldwide, Inc. | Absorbent garment with dual containment flaps |
US6682516B2 (en) * | 2002-01-16 | 2004-01-27 | Paragon Trade Brands, Inc. | Leg gasketing index for absorbent undergarments |
US20050234411A1 (en) | 2004-04-14 | 2005-10-20 | The Procter & Gamble Company | Dual cuff for a unitary disposable absorbent article made of a continuous cuff material |
JP2010070743A (ja) | 2008-08-19 | 2010-04-02 | Toyo Ink Mfg Co Ltd | 活性エネルギー線硬化型平版印刷インキおよびその印刷物 |
JP5270292B2 (ja) * | 2008-10-17 | 2013-08-21 | 株式会社リブドゥコーポレーション | 吸収性物品 |
JP5391020B2 (ja) * | 2009-10-01 | 2014-01-15 | ユニ・チャーム株式会社 | 使い捨ておむつ |
US8764722B2 (en) * | 2011-04-28 | 2014-07-01 | Kimberly-Clark Worldwide, Inc. | Absorbent article with cushioned waistband |
JP5999878B2 (ja) * | 2011-07-04 | 2016-09-28 | ユニ・チャーム株式会社 | 使い捨て着用物品 |
US20130255865A1 (en) * | 2012-03-30 | 2013-10-03 | Tina Brown | Methods and Apparatuses for Making Leg Cuffs for Absorbent Articles |
JP6089806B2 (ja) * | 2013-03-08 | 2017-03-08 | 王子ホールディングス株式会社 | 吸収性物品 |
JP6211777B2 (ja) * | 2013-03-18 | 2017-10-11 | 株式会社リブドゥコーポレーション | 吸収性物品 |
JP6495765B2 (ja) * | 2015-06-30 | 2019-04-03 | ユニ・チャーム株式会社 | 使い捨ておむつ |
RU2661845C1 (ru) * | 2015-09-29 | 2018-07-19 | Кимберли-Кларк Ворлдвайд, Инк. | Впитывающее изделие с выборочно расположенным герметизирующим элементом для талии, имеющим улучшенное уплотнение для талии |
JP6232471B1 (ja) * | 2016-06-06 | 2017-11-15 | ユニ・チャーム株式会社 | 吸収性物品 |
AU2016421117B2 (en) * | 2016-08-26 | 2019-04-11 | Ontex Bvba | Diaper with transverse barriers |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005080859A (ja) * | 2003-09-08 | 2005-03-31 | Kao Corp | 複合伸縮部材及びその製造方法 |
JP2008168012A (ja) * | 2007-01-12 | 2008-07-24 | Uni Charm Corp | 使い捨てのパンツ型おむつの製造方法 |
JP2009160128A (ja) * | 2007-12-28 | 2009-07-23 | Daio Paper Corp | パンツ型使い捨ておむつ |
JP2010194228A (ja) * | 2009-02-27 | 2010-09-09 | Livedo Corporation | 使い捨て吸収性物品 |
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EA201990600A1 (ru) | 2019-07-31 |
EP3482729A1 (en) | 2019-05-15 |
EA037538B1 (ru) | 2021-04-09 |
CN210330913U (zh) | 2020-04-17 |
EP3482729A4 (en) | 2019-08-14 |
BR212019002325Y1 (pt) | 2023-05-16 |
JP6751625B2 (ja) | 2020-09-09 |
BR212019002325U2 (pt) | 2019-04-16 |
EP3482729B1 (en) | 2020-09-09 |
US11337868B2 (en) | 2022-05-24 |
JP2018033528A (ja) | 2018-03-08 |
US20190192357A1 (en) | 2019-06-27 |
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