WO2013121528A1 - 新規なレッグギャザーを備えた吸収体物品 - Google Patents
新規なレッグギャザーを備えた吸収体物品 Download PDFInfo
- Publication number
- WO2013121528A1 WO2013121528A1 PCT/JP2012/053402 JP2012053402W WO2013121528A1 WO 2013121528 A1 WO2013121528 A1 WO 2013121528A1 JP 2012053402 W JP2012053402 W JP 2012053402W WO 2013121528 A1 WO2013121528 A1 WO 2013121528A1
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- WIPO (PCT)
- Prior art keywords
- absorbent article
- hanging
- absorber
- flg
- head
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable 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
- 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
- A61F13/49058—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
- A61F2013/49063—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 decoupled components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
- A61F2013/49092—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening comprising leg cuffs
-
- 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
- A61F2013/49493—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 or forming three-dimensional barrier with raised lateral side-or end-wall
Definitions
- the present invention relates to an absorbent article.
- Leg gathers are provided as an essential component. Leg gathers are generally classified into two types. One is outer leg gathers (also called gusset gathers; hereinafter referred to as “OLG”) present on the left and right side edges of the main body of the absorbent article, and the other is a high-grade interior provided inside the absorbent article. It is an inner leg gather (hereinafter referred to as “ILG”) that rises three-dimensionally from both the left and right sides of an absorbent body composed of a water absorbent resin, pulp, and the like.
- OLG outer leg gathers
- IDG inner leg gather
- the ILG when body fluid is discharged from the wearer, the ILG blocks the body fluid flowing on the surface of the absorber at the side, and simultaneously brings the ILG tip (head) into contact with the wearer's skin.
- the ILG has two functions of preventing body fluid from leaking out through the skin.
- the ILG is conventionally configured as follows. (I) It has a leg part that blocks body fluid on its side surface, and a head part that is connected to the skin of the wearer to prevent leakage and prevent leakage. (Ii)
- the head is made of a stretchable material in order to provide close contact with the wearer's skin.
- the leg portion is constituted by using a hydrophobic nonwoven fabric having a leak-proof property as a material.
- the leg portion is joined to the surface of the absorbent body or the surface of the top sheet that covers the surface of the absorbent body, and is configured to stand up with that as a base end portion.
- the base end of the leg is joined to the vicinity of the left and right side edges of the absorber (or the top sheet corresponding to the position).
- Such a conventional absorbent article absorbs bodily fluid discharged on the absorbent body in the form of pressing and adhering the absorbent body present between the left and right ILGs to the wearer's skin when the absorbent article is worn.
- the absorbent body and ILG having rigidity coupled thereto are pushed into the narrow crotch part, so that irregularities such as wrinkles are caused by the absorbent body. Deformation tends to occur, and the absorption of body fluid concentrates on a part of the absorber, and leakage tends to occur.
- this causes discomfort and is replaced with a new absorbent article, or is used for children's diapers, so that when a predetermined amount of urine is discharged, the color changes, etc.
- the “pee sign” is replaced with a new absorbent article by changing the color before absorbing a predetermined amount of urine.
- the absorbent article having the conventional ILG is not used according to the absorption capacity of the absorber.
- the average value of the amount of body fluid absorbed in the absorbent article when it is replaced with an unused absorbent article is 50% or less of the absorbent capacity of the absorbent article.
- the absorbent body present between the left and right ILGs is pressed against the wearer's skin so that the urine and feces discharged on the absorbent body are worn for a long time. Will come into contact with the person's skin, causing skin problems such as diaper rash.
- the disposable diaper described in Patent Document 1 has a conventional ILG in that the absorbent body is pressed against the skin of the wearer when the absorbent article is worn. Since it is not different from the absorbent article having, the problem that urine and feces discharged on the absorbent body come into contact with the wearer's skin and cause skin troubles such as diaper rash is not solved.
- An object of the present invention is to provide an absorbent article that effectively suppresses urine and feces discharged on the absorbent body from contacting the wearer's skin when the absorbent article is worn.
- the present inventor is arranged on the upper part of the absorbent body from the front end part in the length direction of the absorbent article main body to the front end part, the crotch part and the rear end part through the rear end part.
- the head has a hanging part connected to the head, and the front end and the rear end of the hanging part are the front end of the absorbent article body.
- the hanging part of the FLG is fixed to the absorber in the front body and the back body In the crotch, the lower end of the crotch is fixed to the absorbent body.
- the head of the FLG is in contact with the wearer's skin and separated from the absorbent body.
- the present invention provides the following (1) to (15).
- a sheet-like leak preventer An absorber capable of absorbing bodily fluids disposed at least one layer above the leak preventer;
- An absorbent article comprising a pair of left and right floating leg gathers disposed on the upper part of the absorbent body from the front end in the length direction of the absorbent article main body to the front end, the crotch part, and the rear end through the back body.
- the floating leg gather has a head and a hanging part connected to the head, and a front end part and a rear end part of the hanging part are respectively coupled to the vicinity of the front end part and the rear end part of the absorbent article main body.
- the hanging portion is configured to hang from the head toward the absorber,
- the hanging part of the floating leg gather is not fixed to the absorber in the front body and the back body, and the lower end of the crotch part is fixed to the absorber,
- the absorbent article in which the head of the floating leg gather is in contact with the wearer's skin and is separated from the absorber when worn.
- (2) The pair of left and right floating leg gathers In either case, the head is directed outward, the drooping portion is directed inward, and
- the pair of left and right floating leg gathers are The absorbent article according to the above (1) or (2), wherein the spaced distance between the hanging parts is narrow at the crotch part and is arranged so as to increase from the crotch part toward the front end part and the rear end part.
- the pair of left and right floating leg gathers are The absorbent article according to (1) or (2), wherein the spaced distance between the hanging parts is narrow so as to extend from the crotch part to the rear end part and widen from the crotch part toward the front end part.
- the pair of left and right floating leg gathers are The absorbent article according to (1) or (2), wherein the spaced distance between the hanging parts is narrow so as to extend from the crotch part to the front end part and to widen from the crotch part toward the rear end part.
- the pair of left and right floating leg gathers are The absorbent article according to any one of the above (1) to (5), wherein a part of the hanging part is disposed so as to overlap each other in a crotch part.
- the crotch part has a coupling band that couples the hanging parts of the pair of left and right floating leg gathers, Any one of (1) to (5) above, wherein the coupling band is fixed to the absorber at the crotch portion, whereby the hanging portion of the floating leg gather is indirectly fixed to the absorber.
- the absorbent article according to 1. (9) The absorbent article according to any one of (1) to (8), wherein the hanging part of the floating leg gather is fixed to the absorbent body at a plurality of locations in a crotch part. (10) The absorbent article according to any one of (1) to (9), wherein the hanging part of the floating leg gather has a cut or a notch.
- the floating leg gather is obtained by combining the sheet-like member constituting the hanging part with the belt-like stretchable body constituting the head extended, and having wrinkles at the hanging part.
- the front end portion and the rear end portion of the hanging portion of the floating leg gather and the vicinity of the front end portion and the rear end portion of the absorbent article main body are respectively connected to the floating leg gather in the front-rear direction.
- the absorbent article of the present invention when the absorbent article is worn, the urine and feces discharged on the absorbent body are effectively suppressed from coming into contact with the wearer's skin.
- the front side of the absorbent article or the like is located on the left side of the figure, and in the other plan views, on the upper side of the figure. It is illustrated so that the front side of the absorbent article or the like is positioned, and in each longitudinal end view and each longitudinal sectional view in the attached drawings, the front side of the absorbent article or the like is illustrated on the left side of the figure. It is.
- FIG. 1 is a schematic diagram showing an example of an absorbent article according to the present invention.
- 1A is a plan view
- FIG. 1B is a vertical cross-sectional view taken along line IB-IB in FIG. 1A.
- the absorbent article 100 of the present invention shown in FIG. 1 is configured as a diaper for a child, and is basically a body fluid that is arranged in a sheet-like leak preventer 10 and at least one layer above the leak preventer 10. And a pair of left and right FLGs 14 disposed on the upper part of the absorbent body 12 from the front end portion in the length direction of the absorbent article body to the front end portion, the crotch portion and the rear end portion. It comprises.
- size of each member of an absorber article is described supposing the diaper for children.
- a material generally used as a back sheet can be used.
- a resin film such as PE, PP, PET, and EVA
- a body fluid impermeable sheet such as a foamed sheet of the resin
- a material having air permeability such as an air permeable film is also preferably used.
- the film of the said resin in order to improve a touch and an external appearance, it can also be used as a multilayer sheet
- a thermal bond nonwoven fabric for example, an air-through type
- a multilayer sheet of the resin film and a sheet-like absorber described later can be used.
- a highly water-resistant nonwoven fabric can also be used.
- the highly water-resistant non-woven fabric include SMS having water resistance of 100 mmH 2 O or higher, and SMS provided with water resistance by filling the microweb pores with microfibrillated cellulose (MFC) or wax.
- SMS microfibrillated cellulose
- wax can be mentioned. In this case, you may use independently and can also be used as a multilayer sheet
- Leak preventer 10 may be composed of a plurality of members.
- the leak preventer 10 has a sheet shape, and the shape thereof is not particularly limited as long as the absorber 12 and the like are accommodated in the upper portion and the FLG 14 can be disposed.
- the absorber 12 used in the present invention is not particularly limited as long as it can absorb body fluid, and an absorber used in a conventionally known absorbent article can be used.
- an absorber used in a conventionally known absorbent article can be used.
- a powdery absorber such as powdered wood pulp, unprocessed SAP, or a sheet-like absorber can be used.
- the sheet-like absorbent body is excellent in form stability, possibility of preventing SAP from falling off, and the like.
- a super absorbent sheet containing SAP of 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass or more is preferable.
- the SAP content in the superabsorbent sheet is preferably 95% by mass or less from the viewpoint of the stability of the superabsorbent sheet.
- the highly water-absorbent sheet is an ultrathin sheet-like absorbent body mainly composed of SAP.
- the superabsorbent sheet has a very small thickness because the SAP content is extremely high.
- the thickness of the superabsorbent sheet is preferably 1.5 mm or less, and more preferably 1 mm or less.
- the configuration and the production method are not particularly limited.
- a super absorbent sheet obtained by the Air Laid method can be mentioned.
- the Air Laid method is a method in which pulverized wood pulp and SAP are mixed, a binder is added, and the resultant is formed into a sheet shape to obtain a highly water-absorbent sheet.
- the SAP dispersion slurry is obtained by dispersing SAP and microfibrillated cellulose (MFC) in a mixed solvent of water and ethanol.
- MFC microfibrillated cellulose
- a superabsorbent sheet obtained by a method of forming a web, and a SAP sheet in which the top and bottom of the SAP layer are sandwiched between tissues for example, a superabsorbent sheet obtained by a method in which a large amount of SAP is supported on a raised nonwoven fabric and fixed with a hot melt binder, emulsion binder, aqueous fiber, etc., and fibrous SAP is mixed with PET (polyethylene terephthalate) fiber
- PET polyethylene terephthalate
- At least one layer of the absorber 12 is disposed on the top of the leak preventer 10. That is, the absorber 12 may be a single layer or two or more layers (multiple layers). Moreover, the absorber 12 can also be arrange
- a pair of left and right FLGs 14 are arranged on the upper portion of the absorbent body 12 from the front end portion in the length direction of the absorbent article 100 to the rear end portion through the front body F, the crotch portion C, and the rear body R.
- the “absorbent article main body” collectively refers to a leak preventer that is a member of the absorbent article, a top sheet that can be provided on the leak preventer, and other various members that can be provided on the absorbent article.
- the FLG may be provided by being coupled to the leak preventer, may be provided by being coupled to a top sheet or other member provided on the leak preventer, and may be provided by being coupled to a plurality of members. Also good.
- the FLG 14 has a head portion 16 and a hanging portion 18 connected to the head portion 16, and the front end portion and the rear end portion of the hanging portion 18 are respectively coupled to the vicinity of the front end portion and the vicinity of the rear end portion of the absorbent article 100 main body.
- the front end coupling portion 20 and the rear end coupling portion 22 are shown in FIG. 1
- the drooping portion 18 is configured to hang from the head portion 16 toward the absorber 12.
- the bonding method is not particularly limited, and examples thereof include a bonding method using an adhesive.
- the drooping portion 18 hangs down in a curtain shape, and rises by being fixedly supported and supported by an absorber (or a top sheet covering the absorber) like a conventional ILG. Instead, it is basically not fixed to the absorbent body but is lifted from the absorbent body 12. Since this new FLG 14 has such a floating structure, it is called a floating leg gather (s) (FLG) in this specification.
- FLG floating leg gather
- the length between the front end coupling portion 20 and the rear end coupling portion 22 in the FLG 14 is set to the length between the front end coupling portion 20 and the rear end coupling portion 22 in the leak preventer 10. It is realizable by making it shorter than the length between.
- the drooping portion 18 of the FLG 14 is not fixed to the absorber 12 in the front body F and the back body R, is spaced from the surface of the absorber 12, and its lower end is a drooping portion in the crotch portion C. It is fixed to the absorber 12 by the fixing part 24.
- the fixing method is not particularly limited, and examples thereof include a method of bonding with an adhesive.
- the pair of hanging portion fixing portions 24 are located near the center in the width direction at the crotch portion. Accordingly, the FLG 14 is partitioned by a curtain-like hanging part 18 that extends from the crotch part C to the front body F and the rear body R, with the lower end part of the hanging part 18 fixed to the surface of the absorber 12 at the crotch part C. Create a space.
- the head 16 of the FLG 14 is in contact with the wearer's skin and is kept away from the absorber 12 when worn.
- the space between the hanging parts on both the left and right sides acts as a body fluid receiving part in the crotch part.
- the body fluid discharged into the body moves directly on the surface of the absorber, or flows downward along the hanging part and moves onto the surface of the absorber.
- the body fluid collected near the center of the crotch width direction further moves forward and backward of the absorbent body, although it varies depending on the position of the wearer.
- bodily fluid transmitted through the skin of the wearer flows out from the gap between the skin and the ILG, or even if blocked by the ILG, gathers at the side edge of the absorber.
- the body fluid is reliably blocked at the head and the drooping part, and it is transmitted through the inner surface of the drooping part and reliably moved forward and backward, thereby greatly reducing the side leakage. Can be reduced.
- the body fluid discharged between the hanging parts on the left and right sides is collected in the crotch part and uniformly distributed in the front-rear direction and the width direction.
- the body fluid bypasses and moves to the front or side, and the phenomenon that leads to leakage does not occur.
- the absorption capacity of the absorber can be sufficiently exhibited.
- the separation distance between hanging parts is narrow in a crotch part, and it arrange
- the body fluid When the distance between the hanging parts differs depending on the position in the length direction, the body fluid also moves in the left-right direction. Therefore, the body fluid is diffused in a wide area in both the length direction and the width direction of the absorber 12. The absorption capacity of the absorber 12 is further exhibited. A preferable range of the minimum separation distance between the pair of hanging portions will be described later.
- the head of the FLG Since the part easily fits into the perineal part of the crotch, it is easy to wear.
- FIG. 2 is a partial schematic view of FLG 14 used in absorbent article 100 shown in FIG. 2A is a side view, and FIG. 2B is a cross-sectional view taken along the line IIB-IIB in FIG. 2A.
- the FLG 14 includes a head 16 and a hanging portion 18 that hangs down from the head 16 in a curtain shape.
- the belt-like stretchable body M1 extending in the length direction is wrapped with a sheet-like member so that the remaining portion hangs down, the belt-like stretchable body M1 is covered with the sheet-like member, and the head 16 is covered.
- a drooping portion 18 is formed by the portion of the sheet-like member that is formed and hangs down.
- the stretchable body M1 is not particularly limited.
- a polyurethane foam for example, manufactured by Inoac
- a sheet-like member is not specifically limited,
- PE / PP spunbonded nonwoven fabric for example, areal weight 15g / m ⁇ 2 >, JNC company make
- a SMS nonwoven fabric can be used.
- the head 16 of the FLG 14 uses the belt-like stretchable body M1, it has stretchability.
- the degree of adhesion to the wearer's skin increases.
- Detachable members 26 are provided on both the left and right sides near the rear end of the leak preventer 10.
- a detachable member (not shown) is provided on the lower surface near the front end of the leak preventer 10 so as to be detachable from the detachable member.
- These detachable members can be constituted by various surface fasteners, for example.
- FIG. 3 is a schematic view showing another example of the absorbent article according to the present invention.
- FIG. 3A is a developed plan view of a state in which the absorbent article is developed by applying stress to extend in the front-rear direction and the left-right direction
- FIG. 3B is a view taken along the line IIIB-IIIB in FIG. It is a horizontal end view along a line.
- the absorbent article 101 of the present invention shown in FIG. 3 is configured as a diaper for children and is basically the same as the absorbent article 100, but a pair of left and right outer leg gathers on the outer side of the FLG. It differs in that it has.
- the absorbent article 101 includes a sheet-shaped leak preventer 11, an absorber 13 that is disposed at least one layer above the leak preventer 11, and capable of absorbing bodily fluids.
- a top sheet 28 disposed so as to cover the surface of the absorbent body 13 from one edge portion to the other edge portion thereof, and disposed on the left and right sides of the absorbent body 13 on the leak preventer 11, It differs from the absorbent article 100 in that it comprises an outer leg gather provided with a thread-like rubber 30 fixed by being covered with 28.
- the thread-like rubber 30 for example, three polyurethane filaments can be used.
- the thread-like rubber 30 constitutes a pair of left and right OLGs outside the position where the pair of left and right FLGs exist in the width direction together with the leak preventer 11 and the top sheet 28 that are sandwiched and fixed from above and below.
- OLG is not limited to this structure,
- the structure of OLG used for a conventionally well-known absorber article can be used.
- the leak preventer 11, the absorber 13, the FLG 15, the head 17, the stretchable body M2, the hanging part 19, the front end coupling part 21, the rear end coupling part 23, the hanging part fixing part 25, and the detachable member 27 in the absorbent article 101 are:
- the absorbent article 101 shown in FIG. 3 shows a state in which the absorbent article is expanded by applying stress to expand in the front-rear direction and the left-right direction.
- the FLG 15 is pulled in the front-rear direction and lies on the top sheet 28.
- the lower end portion of the hanging portion 19 of the FLG 15 is a pair of hanging portion fixing portions 25 existing in the vicinity of the center in the width direction through the top sheet 28. 13 is fixed by being coupled to it, and a head 17 is located outside thereof.
- the lower ends of the hanging portions 19 of the pair of left and right FLGs 15 are positioned so as to face each other. This is only at the hanging part fixing part 25 in the crotch part.
- the aspect in which the hanging part of the FLG is fixed to the top sheet is also indirectly fixed to the absorber via the top sheet. Therefore, it is included in a mode in which the hanging part of the FLG is fixed to the absorber.
- FIG. 4 is a partial schematic view of FLG 15 used in absorbent article 101 shown in FIG. 4A is a side view, and FIG. 4B is a cross-sectional view taken along line IVB-IV in FIG. 4A.
- the FLG 15 includes a head portion 17 and a hanging portion 19 that hangs down from the head portion 17 in a curtain shape.
- the belt-like stretchable body M2 extending in the length direction is wrapped with a sheet-like member so that the surplus portion hangs down, the belt-like stretchable body M2 is covered with the sheet-like member, and the head 17 is A hanging portion 19 is formed by the portion of the sheet-like member that is formed and hangs down.
- the stretchable body M2 constituting the head 17 of the FLG 15 is composed of two thread rubbers or polyurethane filaments arranged in parallel in the length direction.
- the drooping portion 19 of the FLG 15 hangs from the inner side edge of the head portion 17 in the width direction, unlike the drooping portion 18 of the FLG 14 that hangs from the center of the width direction of the head portion 16 (shown in FIG. 4).
- the FLG 15 is the left FLG as viewed from the wearer.
- the stretchable body M2 of the head 17 contracts, so that the FLG 15 is lifted from the surface of the absorbent body 13 as in the absorbent article 100 shown in FIG. It becomes a state.
- the top sheet 28 is composed of a liquid-permeable nonwoven fabric (for example, an air-through nonwoven fabric made of PE / PET that has been subjected to a hydrophilic treatment (for example, a basis weight of 20 g / m 2 )).
- a top sheet is not specifically limited,
- the top sheet used for a conventionally well-known absorber article can be used.
- FIG. 5 is a schematic view showing still another example of the absorbent article of the present invention.
- FIG. 5 (A) is a plan view showing a state where the absorbent article, which is an aspect of a pant-type diaper, is developed by cutting the left and right side portions (Z in the drawing) of the waist gather
- FIG. 5 (B) is a lateral end view taken along line VB-VB in FIG.
- the absorbent article 100 shown in FIG. 1 and the absorbent article 101 shown in FIG. 3 are both examples of a tape-type diaper for children, but the absorbent article 100 ′ shown in FIG. It is an example of a pants-type diaper.
- the absorbent article 100 ′ shown in FIG. 5 is basically the same as the absorbent article 101 shown in FIG.
- the absorbent article 101 shown in FIG. 3 is a combination example of FLG and OLG, but the absorbent article 100 ′ shown in FIG. 5 is a combination example of FLG and ILG.
- the combination of FLG, OLG, and ILG is not particularly limited.
- FLG alone see the absorbent article 100 shown in FIG. 1
- a combination of FLG and its outer OLG see the absorbent article 101 shown in FIG. 3
- a combination of FLG and its outer ILG see FIG. 5
- a combination (not shown) of FLG, ILG outside thereof, and OLG outside thereof is not particularly limited.
- the ILG in the absorbent article 100 ′ is obtained by covering the thread-shaped rubber 30 ′ extending in the front-rear direction with the left and right outer edges of the top sheet 28 ′, and rising upward and inward from the vicinity of the left and right outer edges of the leak preventer 10 ′. ing.
- the ILG is not particularly limited, and can be, for example, a conventionally known ILG structure.
- the FLG 14 ′ has a stretchable head portion 16 ′ and a hanging portion 18 ′ made of a nonwoven fabric. The lower end of the hanging portion is connected to the surface of the top sheet 28 ′ and the hanging portion fixing portion 24 ′ at the crotch portion. Has been.
- the portion 24 ′ and the top sheet 28 ′ differ in fine points such as the shape, the leak preventer 11, the absorber 13, the FLG 15, the head 17, the stretchable body M2, the hanging portion 19, and the front end coupling in the absorbent article 101, respectively. It corresponds to the portion 21, the rear end coupling portion 23, the hanging portion fixing portion 25, and the top sheet 28.
- Absorbent article 100 ' is a pants-type diaper, so it does not have a detachable member, and adheres to the outer sheet 31 that covers leak-proof body 10' to form the pants and around the waist of the wearer when worn.
- an exterior sheet and a waist gather are not specifically limited, For example, a conventionally well-known thing can be used.
- the FLG used in the absorbent article of the present invention is not limited to a configuration such as FLG 14, 15 and 14 ′.
- the FLG may be configured integrally with the head and the hanging portion using a single material.
- the head and the hanging part may be made of the same stretchable material.
- you may comprise by integrating them, using different materials for a head and hanging parts like FLG14, 15 and 14 '.
- (1) head, (2) hanging part, (3) integration, and (4) size of FLG will be described in order.
- the shape of the head include a film shape, a tape shape, a belt shape, a tube shape, and a spiral coil shape.
- FIG. 6 is a schematic lateral end view showing an FLG having variously shaped heads. These are the left FLGs as viewed from the wearer, and the right FLG has a lateral end view symmetrical to this, but in the present invention, the shapes of the left and right FLGs can be interchanged.
- the FLG 14a shown in FIG. 6 (A) includes a head 16a and a hanging part 18a.
- the belt-like stretchable body used for the head portion 16a include a sheet-like stretchable film, a rubber thread assembly band (for example, pajamas rubber, manufactured by Fujihato Corporation, width 15 mm, elongation at break 210%), foam, and non-woven fabric. A foam surrounded by can be used.
- the head 16a has an advantage that it is easy to manufacture because the structure is relatively simple.
- an SMS nonwoven fabric for example, a basis weight of 13 g / m 2
- a PE / PP spunbond nonwoven fabric for example, a basis weight of 15 g / m 2
- the length can be used to be 35 mm.
- the integration of the head portion 16a and the hanging portion 18a is, for example, in a state where the belt-like stretchable body is stretched (for example, a state where the belt-shaped stretchable body is stretched twice) and thermally bonded to the sheet-like member. It can be done by a method.
- the FLG when the FLG is obtained by combining the sheet-like member constituting the hanging portion with the belt-like stretchable body constituting the head extended, the pleats are formed on the hanging portion as described in FIG. Curtain-like wrinkles can be formed.
- the FLG of this aspect as in the case of the pleated curtain, upper and lower irregularities are generated at the lower end of the hanging part, and the thickness increases in the width direction as the pleats are formed.
- the FLG 14′a shown in FIG. 6B is composed of a head portion 16′a and a hanging portion 18′a.
- the sheet-like stretchable body M3 is inverted U so that the inner surface is located on the lower side. It can be obtained by folding it in a letter shape and wrapping it with the SMS nonwoven fabric used for the hanging part 18'a.
- a stretchable film or a sheet-like foamed body for example, a polyurethane foam having a thickness of about 3 mm
- the head 16'a is bulky and has an excellent cushion, and thus has an advantage that it easily fits the wearer's skin.
- the FLG 14′b shown in FIG. 6C is composed of a head portion 16′b and a hanging portion 18′b.
- a belt-like stretchable body M4 made of elastic yarns having two thin finenesses is arranged in the center.
- band-like stretchable bodies M5 made of elastic yarns of two large fineness are arranged in the center.
- the FLG 14'c shown in FIG. 6 (D) is composed of a head 16'c and a hanging part 18'c.
- a head 16'c and a hanging part 18'c For example, contrary to the case of FLG 14'b, two thick fine elasticity is provided at the center.
- the head portion 16'c is stretched in the front-rear direction when worn, the inner tension works strongly and comes to have a shape like a downward umbrella, so it is relatively easy to fit the wearer's skin.
- the FLG 14′d shown in FIG. 6 (E) includes two types of heads 17 and 16′d, and two types of hanging parts 19 and hanging parts 18′d.
- the left head 17 and the hanging part 19 can be configured using the FLG 15 shown in FIG. Specifically, for example, it can be obtained by arranging two polyurethane filaments as the belt-like stretchable body M2 and surrounding them with a hydrophobic SMS nonwoven fabric.
- the right head portion 16'd and the hanging portion 18'd are made of, for example, a polyurethane foam having excellent cushioning properties as the belt-like stretchable body M6.
- the FLG 14'd suppresses leakage from the side by the head 17 and the hanging part 19 located outside the wearer (left side in the figure), and the head located inside the wearer (right side in the figure)
- the part 16′d and the hanging part 18′d function to collect body fluid such as urine and diffuse it on the surface of the absorber. Since the FLG 14′d is obtained by combining two types of FLGs as described above, the manufacturing process is complicated and the cost is high. In the present invention, for example, a part of the FLG, for example, Moreover, FLG having such a double structure can be used only at the crotch.
- the distance from the surface of the absorbent body of the FLG head is not particularly limited as long as the skin of the wearer and the absorbent body are not in contact with the wearer, but the distance of the hanging part in the hanging part fixing part existing in the crotch part is not limited. It is defined by the length, and is preferably 10 mm or more, more preferably 15 mm or more in the vicinity of the perineum.
- the material used for the head is flexible and has both stretchability and cushioning properties like urethane foam foam. It is important to have sex.
- the stretchable material used for the head include the following.
- (A) Stretchable material using filamentary elastic body Specifically, for example, a tape-like or tube-like so-called rubber band obtained by knitting elastic yarn such as rubber yarn or polyurethane filament; Elastic knitted fabrics and woven fabrics that can be obtained by knitting and woven with synthetic filaments such as nylon filaments and polyester filaments; elastic bandages and cylindrical bandages made of elastic and spun yarns A material that expands and contracts with deformation of the tissue, such as a stretch supporter. Any of these may be used in combination of two or more.
- elastic yarn Specifically, for example, a tape-like or tube-like so-called rubber band obtained by knitting elastic yarn such as rubber yarn or polyurethane filament; Elastic knitted fabrics and woven fabrics that can be obtained by knitting and woven with synthetic filaments such as nylon filaments and polyester filaments; elastic bandages and cylindrical bandages made of elastic and spun yarns A material that expands and contracts with deformation of the tissue, such as a stretch supporter. Any of these may be used in combination of two or more.
- EVA ethylene / vinyl acetate copolymer
- SEBS styrene / ethylene / butylene / styrene copolymer
- SBR styrene / butadiene rubber
- (C) A laminate of the stretchable material of (a) and (b) above and a nonwoven fabric. Specifically, for example, a plurality of elastic yarns are arranged in parallel and stretched, and the nonwoven fabric is joined up and down.
- FIG. 7 is a schematic partial side view showing an FLG having hanging parts of various shapes.
- the FLG 14a shown in FIG. 7A is the same as that shown in FIG. 6A, and includes a head portion 16a and a hanging portion 18a.
- the head 16a is also used in the FLGs 14b to 14f shown in FIGS. 7B to 7F.
- a hanging portion 18a in the FLG 14a shown in FIG. 7A is configured in a pleated curtain shape by a sheet-like member having no cut.
- This embodiment has a simple structure that is easy to manufacture and has good sealing properties for body fluids, but it is necessary to select a thin and supple material because it is relatively rigid and difficult to deform.
- the drooping portion 18b in the FLG 14b shown in FIG. 7B is configured in a so-called “goodwill shape” by a sheet-like member having a plurality of cuts at relatively wide intervals. If this aspect is divided into three parts such as a central part, a front part, and a rear part, for example, it can be easily deformed following the movement of the body.
- the drooping portion 18d in the FLG 14d shown in FIG. 7D is provided with a plurality of cuts at a relatively narrow interval in the vicinity of the front body and the back body, and so-called “tape-like” by a sheet-like member having no cuts in the crotch portion. And “a goodwill” combination.
- This aspect is a configuration that makes use of the advantages of the FLG 14c and can compensate for the disadvantages, is easy to manufacture, and has excellent body fluid sealing properties.
- the cuts provided in the sheet-like member are relatively deep enough to reach the head 16a. May be a shallow one that stays at the tip of the drooping portion, a portion close to the center of the drooping portion, or the like, and may be used by appropriately mixing them. Moreover, it is good also as a notch with some width instead of a cut
- the effect of blocking the body fluid flowing on the surface of the absorber from the side part on the side surface is slightly weakened. Therefore, the number, position, and depth of cuts, as well as how to mix cuts with different depths, take into account the position of the drooping part and the properties (rigidity, etc.) of the material of the sheet-like member used for the drooping part. It is important to choose appropriately.
- a drooping portion 18e in the FLG 14e shown in FIG. 7E is configured by a number of tufts made of a plurality of thin threads depending on the head 16a. Although this aspect is very easy to adapt following the movement of the wearer and has the effect of distributing the body fluid separated by the head and supplying it uniformly to the absorbent body, it is somewhat inferior in the sealing performance of the body fluid.
- a drooping portion 18f in the FLG 14f shown in FIG. 7F is configured in a so-called “lattice shape” by a sheet-like member provided with a plurality of fine holes. This aspect has a certain degree of deformability and excellent body fluid sealing properties, but it is necessary to select a special material.
- the arrangement of the FLG in the absorbent article is not particularly limited, and as shown in FIG. 4 (B), the hanging part may hang down from the inner side (center side) with respect to the head. 6 (A) to 6 (E), the drooping portion may hang down from the center of the head, or the drooping portion may hang outward (side edge side) with respect to the head. Good.
- the material used for the hanging portion examples include cloth foils, films, nets, and nonwoven fabrics. Among these, in consideration of cost, workability and the like, nonwoven fabrics manufactured by a wet, dry, spunlace, or spunmelt system are preferable, and spunmelt nonwovens such as SMS or SMMS are more preferable.
- the spunmelt nonwoven is a spunbond or spunbond / meltblown laminate having a polymer configuration such as PE, PP, PET, PE / PP, PE / PET, and the like.
- the spun melt nonwoven fabric preferably has a weight per unit area of 10 to 20 g / m 2 from the viewpoint of cost, workability, and the like.
- the coupling means used when integrating the head and the hanging part is not particularly limited, and examples thereof include sewing sewing, heat sealing, ultrasonic sealing, and hot melt bonding. These can be used in combination of two or more. In the case where a stretchable body is used as the material for the head, it is preferable to perform integration under extension.
- the head of the FLG can have various shapes, but generally the width (length in the left-right direction) is pressed against the wearer's skin when worn. However, it is preferably 2 mm or more, more preferably 5 mm or more from the viewpoint of avoiding pain and leaving no trace. Further, the width of the head is preferably 50 mm or less from the viewpoint that handling at the time of wearing is easy and the cost is not high. (Ii) Length in the vertical direction Most of the vertical length in the FLG is occupied by the drooping portion.
- the vertical length of the drooping part depends on the distance between the head and the surface of the absorber, but is 10 mm in that it is excellent in the effect of blocking the body fluid flowing on the surface of the absorber from the side part on the side. It is preferable that it is above, and it is more preferable that it is 20 mm or more. Also, The length of the hanging portion in the vertical direction is not particularly limited and may be in a state of being in contact with the surface of the absorber, but is preferably 50 mm or less from the viewpoint of not increasing the cost.
- the FLG Since the FLG is basically separated from the surface of the absorber and is in contact with the skin of the wearer, the FLG is present on the body fluid and the absorber absorbed by the wearer's skin and the absorber. It is possible to effectively prevent direct contact with body fluids and extremely effectively suppress skin troubles such as diaper rash.
- the following effects are mentioned as a secondary effect. Since the FLG is basically separated from the surface of the absorber and floats, the FLG is not affected by the rigidity of the absorber, and it is difficult for the absorber to be wrinkled or twisted. That is, since the FLG head that holds the structure by supporting the hanging part of the FLG is located at a position far away from the surface of the absorber, even if the hanging part is fixed to the absorber by the hanging part fixing part, the FLG And the movement of the absorber is hardly constrained by each other. Therefore, wrinkles and kinks of the absorbent body when the absorbent article is worn are unlikely to occur, and the absorbent capacity of the absorbent body can be fully exhibited.
- the wearer intends to wear the absorbent article, it is possible to select the optimum position of the FLG for the shape of the wearer's body without considering the positional relationship with the absorbent body. Thereby, the discomfort at the time of wear of a wearer is suppressed. Furthermore, since the FLG head can be kept in close contact with the wearer's skin at all times, it is possible to flexibly follow the movement of the wearer's body, which is likely to occur due to movement of the wearer's body. The transmission leakage from the part can be suppressed. Furthermore, since the FLG is basically separated from the surface of the absorber, it is not necessary to design it integrally with the absorber. That is, providing the FLG in the absorbent article increases the degree of freedom in designing the absorbent body.
- Table 1 shows the difference between FLG and the prior art ILG for each configuration.
- FIG. 8 is a schematic plan view of the absorbent article 100 of the present invention.
- details of each member are omitted, and only the outer peripheral edge of the absorbent article 100 is approximated to a rectangle having a recess at the center in the length direction (the detachable member 26 is omitted). is there.).
- terms for explaining the arrangement of FLG are defined in FIG. 9 and subsequent figures.
- the absorbent article is bilaterally symmetric on the plan view
- the absorbent article 100 is also bilaterally symmetric on the plan view of FIG. 8, so the axis of symmetry (line drawn in the center in the width direction) is the longitudinal center.
- Line CL-a In addition, a line is drawn at the center position of the front end edge and the rear end edge in the length direction of the absorbent article 100 to obtain a horizontal center line CL-b.
- An area before and after the lateral center line CL-b is a crotch part C
- an area before the crotch part C is a front body F
- a rear area is a back body R.
- the perineum of the wearer's crotch is located slightly in front of the lateral center line CL-b (if it is a diaper for children, it is located about 20 mm before).
- FIG. 9 is a schematic plan view of an absorbent article having various arrangement modes of FLG.
- FIG. 9 details of each member other than the FLG are omitted.
- the FLG head part is present partially instead of the full length of the FLG, but the FLG head part may be present over the full length of the FLG.
- a pair of left and right FLGs 15a sandwich the vertical center line CL-a, the head 17a faces outward, the hanging part 19a faces inward, and
- the lower end portions of the hanging portions 19a are disposed so as to face each other in the vicinity of the center in the width direction of the absorber (not shown). Thereby, it becomes the shape where adjustment of the width interval of right and left is easy.
- the lower end part of a pair of hanging part 19a is arrange
- This embodiment has a simple structure and a simple manufacturing process.
- the drooping portion 19a is fixed to the absorber (not shown) by the drooping portion fixing portion 25a.
- the absorbent article 103 shown in FIG. 9 (B) As with the absorbent article 102, a pair of left and right FLGs 15b sandwich the vertical center line CL-a, and the head part 17b is outside, and the hanging part 19b faces inward, and the lower end portion of the drooping portion 19b is disposed near the center in the width direction of the absorber (not shown) so as to face each other. Further, the distance between the pair of hanging parts 19b is narrow at the crotch part and is arranged so as to increase from the crotch part C toward the front end part F and the rear end part R, respectively. This aspect has a structure that fits the perineum and at the same time wraps the abdomen and back widely and is easy to wear. In the vicinity of the lateral center line CL-b of the crotch part C, the drooping part 19b is fixed to the absorber (not shown) by the drooping part fixing part 25b.
- the absorbent article 104 shown in FIG. 9C As with the absorbent article 102, a pair of left and right FLGs 15c sandwich the vertical center line CL-a, and the head 17c is outside and the hanging part 19c is directed inward, and the lower end portion of the drooping portion 19c is disposed in the vicinity of the center in the width direction of the absorber (not shown) so as to face each other. Further, the separation distance between the pair of hanging parts 19c is arranged to be narrow from the crotch part C to the rear end part R and to be widened from the crotch part C toward the front end part F. This aspect has a shape that hardly diffuses to the side when feces are discharged. In the vicinity of the lateral center line CL-b of the crotch portion C, the drooping portion 19c is fixed to the absorber (not shown) by the drooping portion fixing portion 25c.
- the absorbent article 105 shown in FIG. 9D As with the absorbent article 102, a pair of left and right FLGs 15d sandwich the vertical center line CL-a, and the head 17d is outside, and the hanging part 19d faces inward, and the lower end portion of the drooping portion 19d is disposed in the vicinity of the center in the width direction of the absorber (not shown) so as to face each other. Further, the separation distance between the pair of hanging parts 19d is arranged so as to be narrow from the crotch part C to the front end part F and to be widened from the crotch part C to the rear end part R. This aspect has a shape that can prevent bleeding from the front when urine is discharged. In the vicinity of the lateral center line CL-b of the crotch C, the drooping portion 19d is fixed to the absorber (not shown) by the drooping portion fixing portion 25d.
- the absorbent article 106 shown in FIG. 9 (E) like the absorbent article 102, a pair of left and right FLGs 15e sandwich the vertical center line CL-a, and the head 17e is outside, and the hanging part 19e faces inward, and the lower end portion of the drooping portion 19e is disposed in the vicinity of the center in the width direction of the absorber (not shown) so as to face each other. Further, like the absorbent article 105, the separation distance between the pair of hanging portions 19e is arranged so as to be narrow from the crotch C to the front end F and wide from the crotch C to the rear end R.
- a pair of FLGs 15e are provided so as to overlap.
- the overlapping portion forms a pocket at the front end portion of the absorbent article 106 when worn, and the pocket allows the body fluid to be absorbed by the absorbent body (not shown) when the wearer takes a prone posture. This serves to prevent leakage from the front end of the absorbent article 106 through the surface of the absorbent article 106.
- the drooping portion 19e is fixed to the absorber (not shown) by the drooping portion fixing portion 25e.
- This embodiment has an advantage that it is easy to concentrate and guide body fluid to the crotch part, and at the same time, only one drooping part coupling portion is required.
- the overlapping portion of the drooping portion 19f is fixed to an absorber (not shown) by one drooping portion fixing portion 25f.
- the absorbent article 108 shown in FIG. 9 (G) like the absorbent article 102, a pair of left and right FLGs 15g sandwich the vertical center line CL-a, and the head part 17g is outside, and the hanging part 19g faces inward, and the lower end of the hanging part 19g is arranged in the vicinity of the center in the width direction of the absorber (not shown) so as to face each other.
- the length of the crotch part C is long and only a part of the crotch part C overlaps with the crotch part C.
- this embodiment is different in shape from FLG 15f, it has a common advantage in that it is easy to concentrate and guide body fluids to the crotch, and at the same time only one drooping joint is required.
- the overlapping portion of the hanging portion 19g is fixed to an absorber (not shown) by one hanging portion fixing portion 25g.
- FIG. 10 is a schematic plan view of an absorbent article having various arrangement modes of FLG.
- FIG. 10 details of each member other than the FLG and the coupling band are omitted.
- a pair of left and right FLGs 15h sandwich the vertical center line CL-a, the head 17h faces outward, the hanging part 19h faces inward, and The lower ends of the drooping portions 19h are disposed so as to face each other relatively far apart.
- the pair of hanging portions 19h are coupled to each other by a coupling band 32 in the vicinity of the lateral center line CL-b of the crotch portion C.
- the binding band 32 is bonded to the surface of the absorber (not shown) by a binding band fixing portion 34 located at the center of the binding band 32.
- the drooping portion 19h of the FLG 15h is not fixed to the absorber (not shown) in the front body F and the back body R, but in the crotch portion, the absorber (not shown) is indirectly connected via the coupling band 32. Z)).
- the aspect in which the hanging part of the FLG is indirectly fixed to the absorber through the coupling band is such that even if the distance between the pair of hanging parts is relatively large, an excessive stress is applied to the FLG.
- the hanging portion can be combined with the absorber without being hung.
- the length of the hanging portion can be shortened and the amount of material used for the hanging portion can be reduced.
- the mode in which the bonding band bonded to the drooping portion of the FLG is fixed to the top sheet also includes the bonding band and the top sheet. Therefore, the hanging part of the FLG is included in the aspect of being fixed to the absorber.
- the binding band 32 has a tape shape with a length of 10 mm in the front-rear direction and a width of 50 mm in the left-right direction.
- the shape and size of the bonding band are not particularly limited, and are a strip shape or a tape shape (both rectangular shapes).
- the width is preferably 20 to 60 mm, and the length is preferably 10 to 100 mm.
- the material of the binding band is not particularly limited, and may be the same as or different from the material used for the hanging part.
- the lower surface of the coupling band 32 is coupled to the inner (upper) surface of the pair of hanging portions 19h by the coupling portion 36. This aspect has a great effect of pressing and fixing the left and right hanging parts over the entire width of the coupling band.
- the coupling portion 36 where the coupling band 32 is coupled to the hanging portion 19h is located near the lower end portion of the hanging portion 19h.
- a method for bonding the binding band to the absorber or the top sheet covering the absorber and a method for bonding the binding band to the hanging portion will be described later.
- the absorbent article 110 shown in FIG. 10 (B) is basically the same as the absorbent article 109, but the method of coupling the coupling band 32 and the hanging part 19h is different. That is, in the absorbent article 110, the upper surface of the coupling band 32 is coupled to the outer (lower) surface of the pair of hanging portions 19h by the coupling portion 36a. In this aspect, the fixing effect of the left and right hanging portions is relatively weak compared to the aspect shown in FIG. 10A only at the seal point, but the manufacturing process is simplified.
- the absorbent article 111 shown in FIG. 10C is basically the same as the absorbent article 109, but the shape of the binding band 33 is different. That is, the binding band 33 used for the absorbent article 111 has a strip shape with a length in the front-rear direction of 40 mm and a width in the left-right direction of 50 mm.
- the coupling band 33 and the absorber (not shown) are coupled by a spot-shaped coupling band fixing portion 34 a located at the center in the length direction of the coupling band 33 and the center in the width direction.
- the front part and the rear part are not connected to an absorber (not shown).
- the coupling band 33 and the hanging portion 19 h are coupled by coupling portions 36 b that extend in the length direction at the left and right side edges of the coupling band 33.
- the binding band 33 rises in front of and behind the binding band fixing portion 34a of the crotch C together with the FLG 15h and forms a pocket in front and back of the crotch C, so that it is discharged to the front of the crotch C. It is possible to effectively prevent urine and feces excreted behind the crotch C from being mixed, and to suppress the generation of odors and rashes. In addition, there is an effect of effectively collecting urine and feces.
- the absorbent article 112 shown in FIG. 10D is basically the same as the absorbent article 111, but the position of the binding band 33 is different.
- the coupling band 33 and the absorber (not shown) are coupled by a spot-shaped coupling band fixing portion 34b located at the rear in the length direction of the coupling band 33 and in the center in the width direction.
- the front part is not connected to an absorber (not shown).
- the coupling band 33 and the hanging portion 19 h are coupled by a coupling portion 36 c that extends in the length direction at both left and right edges of the coupling band 33.
- the binding band 33 when worn, the binding band 33 rises in front of the binding band fixing portion 34b of the crotch C together with the FLG 15h and forms a pocket in front of the crotch C. And feces discharged to the back of the crotch C can be effectively prevented from mixing, and the occurrence of odors and rashes can be suppressed. In addition, there is an effect of effectively collecting urine.
- the absorbent article 113 shown in FIG. 10E is basically the same as the absorbent article 111, but the position of the binding band 33 is different.
- the coupling band 33 and the absorber (not shown) are coupled to each other by a spot-shaped coupling band fixing portion 34c located at the front part in the length direction of the coupling band 33 and at the center in the width direction.
- the rear part of is not connected to an absorber (not shown).
- the coupling band 33 and the hanging portion 19 h are coupled to each other by coupling portions 36 d extending in the length direction at both left and right edges of the coupling band 33.
- the binding band 33 when worn, the binding band 33 rises with the FLG 15h behind the binding band fixing portion 34c of the crotch C and forms a pocket behind the crotch C. And feces discharged to the back of the crotch C can be effectively prevented from mixing, and the occurrence of odors and rashes can be suppressed. Moreover, the effect which collects a flight effectively is also show
- FIG. 11 is an explanatory diagram of a fixed state of the hanging part of the FLG and the absorber.
- 11 (A) to 11 (D) are all plan views, and only the FLG, the bonding band, and the top sheet are shown as members, but the lower side of the hanging portion fixing portion and the bonding band fixing portion (on the paper surface). On the back side, there is an absorber (or a top sheet that covers the absorber).
- the FLG 38 shown in FIG. 11 (A) is composed of a head 40 and a hanging part 42, as in various FLGs shown in FIGS. 1, 3 and 9 (A) to 9 (E).
- the lower ends of the drooping portions 42 are disposed in the vicinity of the center in the width direction of the absorber so as to be spaced apart from each other with the vertical center line CL-a therebetween.
- the minimum separation distance La between the pair of drooping portions is preferably 40 mm or less, more preferably 30 mm or less, although it depends on the length of the drooping portion. Within the above range, displacement in the width direction is suppressed, and it is easy to stably position the head 40 by the perineum at the crotch.
- the minimum separation distance of a pair of drooping parts can also be 0 mm, and one part may overlap.
- the minimum separation distance between the pair of heads is not particularly limited, but is preferably equal to or less than the width of the perineum in order to stably position the head in the perineum at the crotch.
- the minimum distance between the pair of heads is preferably set to 30 to 50 mm.
- the hanging part fixing part 44 that fixes the hanging part 42 and the absorber has a length direction at a position 5 to 10 mm outside from the lower end of the hanging part. Is provided in a linear shape with a length of 20 to 30 mm.
- a hanging part is fixed with a top sheet and couple
- the FLG 38a shown in FIG. 11 (B) is composed of a head 40a and a hanging part 42a. Like various FLGs shown in FIGS. 9 (F) and 9 (G), one FLG 38a is provided. The parts are arranged so as to overlap each other at the crotch part. The overlapping part of the pair of hanging parts is fixed to an absorber (not shown) by a hanging part fixing part 44a provided linearly on the vertical center line CL-a.
- the lateral width Lb of the overlapping portion of the hanging portion is preferably 40 mm or less, and is preferably 30 mm or less. Is more preferable.
- the pair of hanging parts 42a is also coupled by the coupling part 46 between the hanging parts.
- the fixation between the hanging part 42a and the absorber (not shown) in the hanging part fixing part 44a and the coupling between the pair of hanging parts 42a in the coupling part 46 between hanging parts May be performed simultaneously or separately.
- an absorber is coat
- a hanging part is fixed with a top sheet and couple
- the FLG 38b shown in FIG. 11C is composed of a head 40b and a hanging part 42b. Like the FLG 38a shown in FIG. 11B, a part of the hanging part 42b overlaps with each other in the crotch part. However, as compared with the case of FLG 38a, the overlapping portions of the pair of hanging portions are larger.
- the overlapping part of the pair of hanging parts is a hanging part fixing part 44b provided linearly in the vicinity of the lower ends of the pair of hanging parts, and is fixed to the top sheet 48, and an absorber (not shown) is interposed via the top sheet 48. ) And are fixed.
- the hanging portion fixing portion 44b is configured in a dot shape arranged in the length direction.
- the width Lc in the left-right direction of the overlapping part of the hanging part is fixed at one place like FLG38a. It is possible to make it wider.
- the width Lc in the left-right direction of the overlapping portion of the drooping portion is not particularly limited, but is preferably 80 mm or less, more preferably 60 mm or less in consideration of material loss and the like.
- the pair of hanging parts 42b is also coupled at the coupling part 46a between the hanging parts.
- the hanging portion coupling portion 46a is formed in a dot shape arranged in the length direction.
- the fixing between the hanging portion 42b and the top sheet 48 in the hanging portion fixing portion 44b and the coupling between the pair of hanging portions 42b in the coupling portion 46a between hanging portions are performed simultaneously. Or may be done separately.
- the hanging portion is directly bonded to the absorber.
- the FLG 38c shown in FIG. 11 (D) includes a head 40c and a hanging part 42c.
- the hanging part 42c includes: The pair of hanging portions 42 c are disposed so as to face each other relatively far apart, and the pair of hanging portions 42 c are coupled to each other by a coupling band 50.
- the binding band 50 is bonded to the surface of an absorber (not shown) and a binding band fixing portion 52 on the longitudinal center line CL-a located at the center of the binding band 50 in a spot shape.
- the hanging portion 42c and the coupling band 50 are coupled to each other by a coupling portion 54 extending in the length direction in the vicinity of the lower end portion of the hanging portion.
- fixation between the hanging part of the FLG and the absorber or the top sheet, the coupling between the pair of hanging parts, the fixing of the coupling band and the absorber or the top sheet, and the coupling between the coupling band and the hanging part As described below.
- fixing and bonding means include use of an adhesive such as heat sealing, ultrasonic sealing, and hot melt.
- the fixing and coupling patterns include a line shape, a dot shape, and a hatching shape.
- the size of fixing and coupling is not particularly limited. For example, in the case of a line shape, the width of the line is preferably 1 to 3 mm, and the length of the line is preferably 10 to 50 mm.
- the number of fixing and coupling may be one or more.
- FIG. 12 is an explanatory diagram of a fixed state when placed on the FLG and the absorbent article main body.
- 12 (A) to 12 (C) are all plan views, and in addition to the absorbent article main body, only the FLG is shown as the member from the front body to the crotch.
- the absorbent article main body there is generally no absorber at its front end, and the top sheet is exposed when the top sheet is provided, and the leak preventer is exposed when the top sheet is not provided. ing.
- an FLG 38d having a head 40d and a hanging part 42d is disposed.
- the FLG 38d is an example in which no member constituting the head 40d is present in the vicinity of the front end portion, and only the sheet-like member constituting the hanging portion 42d is formed.
- the sheet-like member forming the FLG 38d is coupled to the main body (leak preventer or top sheet) of the absorbent article 114 at the front end coupling portion 20a in substantially the entire width direction thereof.
- the length S 1 in the length direction of the front end coupling portion 20a is preferably in the range of 10 to 80 mm.
- the absorbent article 115 shown in FIG. 12B has the FLG 38d similarly to the absorbent article 114, but the state of coupling with the main body of the absorbent article 115 is different.
- the sheet-like member forming the FLG 38d is coupled to the main body (leak preventer or top sheet) of the absorbent article 115 at the front end coupling portion 20b at two locations inside and outside in the width direction.
- the length direction of the length S 2 of the two portions of the front end coupling portion 20b is preferably in the range of either 20 ⁇ 80 mm.
- the widths R 1 and R 2 of the two front end coupling portions 20b are preferably in the range of 2 to 15 mm.
- the sheet-like member forming the FLG 38d is formed at two locations on the inner side and the outer side in the width direction in the same manner as the absorbent article 115. (Leakage body or top sheet) and the front end coupling portion 20c, but the two front end coupling portions 20c are different in the length direction. That is, the length S 3 of the length direction of the outer front coupling portion 20c is longer than the length S 4 in the length direction of the inner front coupling portion 20c. In the present invention, on the contrary, the length of the outer front end coupling portion in the length direction may be shorter than the length of the inner front end coupling portion in the length direction.
- the fixing near the rear end of the absorbent article body can be performed in the same manner as the fixing near the front end of the absorbent article body described above.
- the connection between the front end and the rear end of the hanging part of the FLG and the vicinity of the front end and the rear end of the absorbent article main body is a state where the FLG is stretched in the front-rear direction. It is preferable to carry out. As a result, a structure in which the FLG is raised can be easily realized.
- the front end portion and the rear end portion of the main body of the absorbent article are further provided with a member other than FLG, for example, a pocket formed of a leak-proof material or an elastic for forming an elastic ring on the waist.
- a cloth can be provided.
- the absorbent article of the present invention may further include, for example, various constituent members of a conventionally known absorbent article in addition to the various members described above.
- the absorbent article of the present invention may be a waistband tape type or a pants type (tapeless).
- the absorber article of the present invention was explained based on each embodiment of illustration, the present invention is not limited to these, for example, the composition of each part is arbitrary which can exhibit the same function Can be replaced with configuration. Moreover, it can also be set as another embodiment by combining arbitrarily the structure of each part in each embodiment.
- the absorbent article of the present invention is suitably used for paper diapers (for children and adults), incontinence goods, training pants, diaper covers that can be used many times after washing.
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Abstract
Description
レッグギャザーは、一般的に2種類に分類される。一つは、吸収体物品の本体の左右両側縁に存在するアウターレッグギャザー(ガゼットギャザーとも呼ばれる。以下「OLG」という。)であり、もう一つは、吸収体物品の内部に設けられる、高吸水性樹脂、パルプ等で構成された吸収体の左右両側から立体的に立ち上がるインナーレッグギャザー(以下「ILG」という。)である。
ILGは、このような機能を奏するようにするため、従来、次のような構成とされる。
(i) 体液を側面でブロックする脚部と、着用者の肌に接触させて伝い漏れを防止する、脚部から連なる頭部とを有する。
(ii) 頭部は、着用者の肌との密着性を持たせるために、伸縮性の材料で構成する。
(iii) 脚部は、体液の透過を防止するため、材料として、防漏性を有する疎水性不織布を用いて構成する。
(iv) 脚部は、吸収体の表面又は吸収体の表面を被覆するトップシートの表面に接合され、そこを基端部として立ち上がるよう構成される。
(v) 脚部は、基端部は吸収体の左右側縁部付近(又はその位置に相当するトップシート)に接合される。
しかしながら、このような従来のILGを有する吸収体物品は、狭窄な股下部に、吸収体及びそれに結合した剛性を有するILGが押し込まれるようにされるため、吸収体によれ、しわ等の不規則な変形が生じやすく、吸収体の一部に体液の吸収が集中し、漏れが発生しやすい。更に、これにより不快感が生じて新しい吸収体物品に交換したり、子供用おむつに用いられている、尿が所定量排出された場合に色が変わるなどしておむつの替え時を知らせる、いわゆる「おしっこサイン」が、所定量の尿を吸収する前に色が変わるなどして新しい吸収体物品に交換したりすることが行われている。このように、従来のILGを有する吸収体物品は、吸収体の吸収容量に応じた使用がされていないという現状がある。実際、統計によると、現状の子供用おむつの場合、未使用の吸収体物品に交換される際の吸収体物品における体液の吸収量の平均値は、吸収体の吸収能力の50%以下である。
また、上述したように、吸収体物品の着用時に、左右のILGの間に存在する吸収体を着用者の肌に押し付けて密着させるので、吸収体上に排出された尿や便が長時間着用者の肌に接触することになり、おむつかぶれ等の皮膚トラブルを引き起こしてしまう。
(1)シート状の防漏体と、
前記防漏体の上部に少なくとも一層配置された、体液を吸収しうる吸収体と、
前記吸収体の上部に、吸収体物品本体の長さ方向の前端部から前身頃、股下部及び後身頃を経て後端部にわたって配置される左右一対のフローティングレッグギャザーと
を具備する吸収体物品であって、
前記フローティングレッグギャザーが、頭部と前記頭部に連なる垂下部とを有し、前記垂下部の前端部及び後端部が、吸収体物品本体の前端部近傍及び後端部近傍にそれぞれ結合されて、前記垂下部が前記頭部から前記吸収体に向かって垂れ下がるように構成され、
前記フローティングレッグギャザーの前記垂下部が、前身頃及び後身頃においては前記吸収体に固定されておらず、かつ、股下部においてはその下端部が前記吸収体と固定されており、
着用時において、前記フローティングレッグギャザーの前記頭部が、着用者の肌に接触し、かつ、前記吸収体とは離間した状態を保持する、吸収体物品。
(2)前記左右一対のフローティングレッグギャザーが、
いずれも前記頭部が外側に、前記垂下部が内側に向き、かつ、
前記垂下部の下端部が、前記吸収体の幅方向の中央近傍で、互いに対向するように配置される、上記(1)に記載の吸収体物品。
(3)前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部で狭く、股下部から前端部及び後端部に向かってそれぞれ広くなるように配置される、上記(1)又は(2)に記載の吸収体物品。
(4)前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部から後端部に掛けて狭く、股下部から前端部に向かって広くなるように配置される、上記(1)又は(2)に記載の吸収体物品。
(5)前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部から前端部に掛けて狭く、股下部から後端部に向かって広くなるように配置される、上記(1)又は(2)に記載の吸収体物品。
(6)前記左右一対のフローティングレッグギャザーの前記垂下部の下端部の最小離間距離が40mm以下である、上記(1)~(5)のいずれかに記載の吸収体物品。
(7)前記左右一対のフローティングレッグギャザーが、
前記垂下部の一部が股下部において互いに重なるように配置される、上記(1)~(5)のいずれかに記載の吸収体物品。
(8)更に、股下部において、前記左右一対のフローティングレッグギャザーの前記垂下部を互いに結合する結合バンドを有し、
前記結合バンドが股下部において前記吸収体と固定されることにより、前記フローティングレッグギャザーの前記垂下部が、間接的に前記吸収体と固定されている、上記(1)~(5)のいずれかに記載の吸収体物品。
(9)前記フローティングレッグギャザーの前記垂下部が、股下部において前記吸収体と複数箇所で固定されている、上記(1)~(8)のいずれかに記載の吸収体物品。
(10)前記フローティングレッグギャザーの前記垂下部が、切れ目又は切り欠きを有する、上記(1)~(9)のいずれかに記載の吸収体物品。
(11)前記フローティングレッグギャザーの前記頭部が、伸縮性を有する、上記(1)~(10)のいずれかに記載の吸収体物品。
(12)前記フローティングレッグギャザーが、前記頭部を構成する帯状の伸縮体を伸長させた状態で、前記垂下部を構成するシート状部材と結合させて得られ、前記垂下部にしわを有している、上記(11)に記載の吸収体物品。
(13)前記フローティングレッグギャザーの前記垂下部の前記前端部及び前記後端部と、吸収体物品本体の前記前端部及び前記後端部近傍との結合が、それぞれ、前記フローティングレッグギャザーを前後方向に伸張させた状態で行われたものである、上記(11)又は(12)に記載の吸収体物品。
(14)幅方向における前記左右一対のフローティングレッグギャザーが存在する位置よりも外側に、更に、左右一対のインナーレッグギャザーを具備する、上記(1)~(13)のいずれかに記載の吸収体物品。
(15)幅方向における前記左右一対のフローティングレッグギャザーが存在する位置よりも外側に、更に、左右一対のアウターレッグギャザーを具備する、上記(1)~(14)のいずれかに記載の吸収体物品。
また、前記樹脂のフィルムを用いる場合には、感触や外観を向上させるために、フィルムと不織布との複層シートとして用いることもできる。この場合、不織布としては、比較的低目付のSB、サーマルボンド不織布(例えば、エアスルータイプ)等が好適に用いられる。
また、前記樹脂のフィルムと後述するシート状吸収体との複層シートを用いることもできる。
また、高耐水性不織布を用いることもできる。高耐水性不織布としては、例えば、耐水度100mmH2O以上の耐水性を有するSMS、マイクロウェブの細孔をミクロフィブリル化セルロース(MFC)やワックスで充填することにより耐水性を付与されたSMSが挙げられる。この場合、単独で用いてもよく、フィルムと高耐水性不織布との複層シートとして用いることもできる。
シート状吸収体の中でも、SAPを50質量%以上、好ましくは60質量%以上、より好ましくは70質量%以上含有する高吸水性シートであるのが好ましい。また、高吸水性シートにおけるSAPの含有量は、高吸水性シートの安定性等の点で、95質量%以下であるのが好ましい。
高吸水性シートは、SAPを主成分とする極薄のシート状吸収体であれば、構成や製造方法を特に限定されない。
例えば、Air Laid法で得られる高吸水性シートが挙げられる。Air Laid法は、粉砕した木材パルプとSAPとを混合し、結合剤を添加してシート状に成形して高吸水性シートを得る方法である。この方法で得られる高吸水性シートとしては、例えば、米国レオニヤ(Rayonier)社製のNOVATHIN(米国登録商標)、王子キノクロス社製のB-SAPが知られている。
また、SAPの分散スラリーを不織布等の体液透過性シートの上にコーティングする方法で得られる高吸水性シートも挙げられる。ここで、SAPの分散スラリーは、SAPとミクロフィブリル化セルロース(MFC)とを、水とエタノールとの混合溶媒に分散させたものであるのが好ましい。この方法で得られる高吸水性シートとしては、例えば、(株)日本吸収体技術研究所製のMegaThin(登録商標)が知られている。
そのほかに、例えば、起毛状不織布にSAPを大量に担持させ、ホットメルトバインダー、エマルションバインダー、水性繊維等で固定する方法で得られる高吸水性シート、繊維状SAPをPET(ポリエチレンテレフタレート)繊維と混合してウェブ状に成形する方法で得られる高吸水性シート、SAP層の上下をティッシュで挟んだSAPシートが挙げられる。
また、吸収体12は、折りたたんだ状態で配置することもできる。
ここで、「吸収体物品本体」とは、吸収体物品の部材である防漏体、防漏体上に設けることができるトップシート、その他吸収体物品に設けることができる各種部材を総称していうものである。FLGは、防漏体に結合して設けられてもよく、防漏体上に設けられたトップシートやその他の部材に結合して設けられてもよく、複数の部材にわたって結合して設けられてもよい。
FLG14の垂下部18は、前身頃F及び後身頃Rにおいては吸収体12に固定されておらず、吸収体12の表面から離間しており、かつ、その下端部が股下部Cにおいては垂下部固定部24で吸収体12と固定されている。固定の方法は、特に限定されず、例えば、接着剤により結合する方法が挙げられる。
そして、図1(A)に示される一対のFLG14のように、垂下部間の離間距離が股下部で狭く、股下部から前端部及び後端部に向かってそれぞれ広くなるように配置されるなど、垂下部の離間距離が長さ方向の位置によって異なっている場合は、体液の左右方向への移動も生じるため、吸収体12の長さ方向及び幅方向いずれについても広い領域に体液を拡散させてから吸収させることができ、吸収体12の吸収能力が更に発揮される。
一対の垂下部の最小離間距離の好適範囲については、後述する。
図2に示されるように、FLG14は、頭部16と頭部16からカーテン状に垂れ下がる垂下部18とから構成されている。具体的には、長さ方向に延在する帯状の伸縮体M1を、シート状部材で包み込み、余った部分が垂れ下がるようにし、帯状の伸縮体M1がシート状部材で被覆されて頭部16が形成され、シート状部材の垂れ下がった部分により垂下部18が形成されている。
伸縮体M1は、特に限定されないが、例えば、ポリウレタンの発泡体(例えば、イノアック社製)を用いることができる。
シート状部材は、特に限定されないが、例えば、PE/PPスパンボンド不織布(例えば、目付量15g/m2、JNC社製)、SMS不織布を用いることができる。
糸状ゴム30としては、例えば、3本のポリウレタンフィラメントを用いることができる。この糸状ゴム30は、これを上下から挟んで固定する防漏体11及びトップシート28とともに、幅方向における左右一対のFLGが存在する位置よりも外側に、更に、左右一対のOLGを構成する。
本発明においては、OLGは、この構成に限定されず、例えば、従来公知の吸収体物品に用いられるOLGの構成を用いることができる。
この展開状態においては、FLG15は、前後方向に引っぱられて、トップシート28の上で寝た状態となっている。この状態では、図3(B)から明らかなように、FLG15の垂下部19の下端部が、幅方向の中央近傍に存在する一対の垂下部固定部25において、トップシート28を介して吸収体13と結合することにより固定され、その外側に頭部17が位置している。このように垂下部の下端部が内側、頭部が外側に位置するようにすると、垂下部間の必要な幅の調整もしやすく、製造プロセスも簡易になる。
また、図3(A)から明らかなように、展開状態においては、左右一対のFLG15の垂下部19の下端部が対向するように位置しているが、吸収体13と結合しているのは股下部における垂下部固定部25においてのみである。
なお、本発明においては、吸収体がその表面をトップシートで被覆されている場合、FLGの垂下部がトップシートと固定されている態様も、トップシートを介して吸収体と間接的に固定されているから、FLGの垂下部が吸収体と固定されている態様に含まれる。
図4に示されるように、FLG15は、頭部17と頭部17からカーテン状に垂れ下がる垂下部19とから構成されている。具体的には、長さ方向に延在する帯状の伸縮体M2を、シート状部材で包み込み、余った部分が垂れ下がるようにし、帯状の伸縮体M2がシート状部材で被覆されて頭部17が形成され、シート状部材の垂れ下がった部分により垂下部19が形成されている。
FLG15の頭部17を構成する伸縮体M2は、伸縮体M1とは異なり、長さ方向に並列した2本の糸状ゴム又はポリウレタンフィラメントにより構成されている。
FLG15の垂下部19は、FLG14の垂下部18が頭部16の幅方向のほぼ中央から垂れ下がっているのとは異なり、頭部17の幅方向の内側側縁から垂れ下がっている(図4に示されるFLG15は、着用者から見て左側のFLGである。)。
吸収体物品101においても、応力を除くと、頭部17の伸縮体M2が縮むことにより、図1(B)に示される吸収体物品100と同様に、FLG15が吸収体13の表面から浮き上がった状態となる。
本発明においては、トップシートは、特に限定されず、例えば、従来公知の吸収体物品に用いられるトップシートを用いることができる。
図1に示される吸収体物品100及び図3に示される吸収体物品101は、いずれも子供用のテープ型おむつの例であるが、図5に示される吸収体物品100’は、テープレスのパンツ型おむつの例である。
図5に示される吸収体物品100’は、基本的に、図3に示される吸収体物品101と同様であるが、パンツ型おむつである点の他、幅方向における左右一対のFLGが存在する位置よりも外側に、更に、左右一対のILGを有する点で異なる。すなわち、図3に示される吸収体物品101は、FLGとOLGとの併用例であったが、図5に示される吸収体物品100’は、FLGとILGとの併用例である。
FLG14’は、伸縮性の頭部16’と不織布により構成される垂下部18’とを有し、股下部位でこの垂下部の下端はトップシート28’の表面と垂下部固定部24’で結合されている。
本発明においては、外装シート及びウエストギャザーは、特に限定されず、例えば、従来公知のものを用いることができる。
以下、FLGの構成について、より詳細に説明する。
FLGは、一つの材料を用いて頭部と垂下部とを一体的に構成してもよい。例えば、頭部と垂下部とを同じ伸縮性材料で構成してもよい。
また、FLG14、15及び14’のように、頭部と垂下部とに異なる材料を用いて、それらを一体化することにより構成してもよい。
以下、FLGの(1)頭部、(2)垂下部、(3)一体化、及び、(4)大きさについて順に説明する。
(i)形状・配置
頭部の形状は、例えば、フィルム状、テープ状、帯状、チューブ状、スパイラルコイル状が挙げられる。中でも、着用者の着用部分の曲線形状にフィットするように、用いられる材料と相俟って、柔軟性やクッション性が発揮される形状であるのが好ましい。
図6は、種々の形状の頭部を有するFLGを示す模式的な横端面図である。これらは、いずれも着用者から見て左側のFLGであり、右側のFLGはこれと左右対称の横端面図を持つが、本発明においては、左右のFLGの形状を入れ替えることもできる。
垂下部18aに用いられるシート状部材としては、例えば、SMS不織布(例えば、目付量13g/m2)、PE/PPスパンボンド不織布(例えば、目付量15g/m2)を、例えば、上下方向の長さが35mmとなるようにして用いることができる。図6(B)~図6(E)にそれぞれ示される垂下部18a’~18’dにおいても、同様である(不織布は、垂下部18’dにおいては、親水化処理して用いられる。)。
頭部16aと垂下部18aとの一体化は、例えば、上記帯状の伸縮体を伸長させた状態(例えば、2倍に伸張させた状態)で、上記シート状部材と熱融着して結合させる方法により行うことができる。このように、頭部を構成する帯状の伸縮体を伸長させた状態で、垂下部を構成するシート状部材と結合させて、FLGを得ると、図2で説明したように、垂下部にプリーツカーテン状のしわを形成させることができる。この態様のFLGは、プリーツカーテンがそうであるように、垂下部の下端には上下の凹凸が生じ、幅方向にはプリーツ形成に伴って厚みを持つようになる。
シート状の伸縮体M3としては、例えば、伸縮性フィルム、シート状の発泡体(例えば、厚さ3mm程度のポリウレタンフォーム)を用いることができる。頭部16’aは、嵩高になり、クッションに優れるため、着用者の肌にフィットしやすいという利点がある。
FLG14’dは、着用者の外側(図中左側)に位置する頭部17及び垂下部19により、側部からの漏れを抑制し、また、着用者の内側(図中右側)に位置する頭部16’d及び垂下部18’dにより、尿等の体液を集め、吸収体の表面に拡散させるという機能を奏する。
FLG14’dは、上述したように、2種類のFLGを合体させて得るものであるため、製造プロセスが複雑であり、コストも高くなるので、本発明においては、例えば、FLGの一部、例えば、股下部のみにこのような2重構造を有するFLGを用いることもできる。
FLGの頭部は着用者の肌に直接接するので、頭部に用いられる材料としては、柔軟でウレタン発泡フォームのように伸縮性とクッション性を併有するのが好ましく、特に、伸縮性を有することが重要である。
頭部に用いられる伸縮性材料としては、例えば、以下のものが挙げられる。
具体的には、例えば、ゴム糸、ポリウレタンフィラメント等の弾性糸を編織して得られるテープ状・チューブ状のいわゆるゴムバンド;弾性糸とナイロンフィラメント、ポリエステルフィラメント等の合繊フィラメントと交編・交織してえられる伸縮性の編物・織物;弾性糸と紡績糸とを用いてネット状・筒状にした伸縮包帯、筒状包帯、伸縮サポーター等の組織の変形を伴って伸縮する材料が挙げられる。
これらは、適宜2種以上を組み合わせて用いることができる。
具体的には、例えば、ポリウレタンフィルム、EVA(エチレン/酢酸ビニル共重合体)フィルム、SEBS(スチレン/エチレン/ブチレン/スチレン共重合体)フィルム、SBR(スチレン/ブタジエンゴム)フィルム等の合成樹脂フィルム;ポリウレタン不織布等の合成樹脂不織布が挙げられる。これらの伸縮性フィルム類は、一方向のみに伸縮性を有するもの、多方向に伸縮性を有するもののいずれも用いることができる。
これらは、適宜2種以上を組み合わせて用いることができる。
具体的には、例えば、複数の弾性糸を並行に並べ、伸長させた状態で、上下に不織布を接合して得られる3層積層体;SEBSフィルムと1方向易伸展性不織布との積層体が挙げられる。
(i)形状・配置
垂下部の形状について、図面を用いて詳細に説明する。
図7は、種々の形状の垂下部を有するFLGを示す模式的な部分側面図である。
図7(A)に示されるFLG14aは、図6(A)において示したものであり、頭部16aと垂下部18aとにより構成される。頭部16aは、図7(B)~図7(F)に示されるFLG14b~14fにおいても用いられているものである。
図7(A)に示されるFLG14aにおける垂下部18aは、切れ目を有しないシート状部材によりプリーツカーテン状に構成されている。この態様は、体液のシール性がよく、製造しやすいシンプルな構造であるが、相対的に剛性が高くなり変形しにくいので、薄くてしなやかな材料を選択する必要がある。
図7(B)に示されるFLG14bにおける垂下部18bは、切れ目が比較的広い間隔で複数設けられたシート状部材により、いわば「のれん状」に構成されている。この態様は、例えば、中央部位、前部、後部というように3分割すると、体の動きに追随して変形することが容易にできるようになる。
図7(C)に示されるFLG14cにおける垂下部18cは、切れ目が比較的狭い間隔で複数設けられたシート状部材により、多数のテープが垂れ下がるような状態、いわば「テープ状」に構成されている。この態様は、より体の動きに追従して変形することが容易になるが、製造がやや難しくなり、また、体液のシール性にやや難点がある。
図7(D)に示されるFLG14dにおける垂下部18dは、前身頃及び後身頃付近では切れ目が比較的狭い間隔で複数設けられ、股下部では切れ目を有しないシート状部材により、いわば「テープ状」及び「のれん状」の組合せとして構成されている。この態様は、FLG14cの長所を生かし、かつ、短所を補うことができる構成であり、製造がしやすく、体液のシール性にも優れる。
また、切れ目ではなく、多少幅を持たせた切欠きとしてもよい。
シート状部材が切れ目を有する場合、垂下部の自由度が高くなり、吸収体のしわ、よれ等をより生じさせにくくなるという利点がある。他方、側部からの吸収体の表面を流れてくる体液を側面でブロックする効果は、やや弱くなる。
したがって、切れ目の数、位置、深さ、更には、異なる深さの切れ目の混合の仕方は、垂下部の位置、垂下部に用いられるシート状部材の材料の性状(剛性等)等を考慮して、適切に選択することが重要である。
図7(F)に示されるFLG14fにおける垂下部18fは、複数の細かい孔が設けられたシート状部材により、いわば「格子状」に構成されている。この態様は、ある程度変形性がよく体液のシール性にも優れるが、特別の材料を選択する必要がある。
垂下部に用いられる材料は、例えば、布箔類、フィルム類、ネット類、不織布類が挙げられる。中でも、コスト、加工性等を考慮すると湿式、乾式、スパンレース、スパンメルト等の方式で製造される不織布が好ましく、SMS、SMMS等のスパンメルト不織布がより好ましい。
スパンメルト不織布は、PE、PP、PET、PE/PP、PE/PET等のポリマー構成を持ったスパンボンド又はスパンボンド/メルトブローンの積層体である。スパンメルト不織布は、目付量が10~20g/m2であるのが、コスト、加工性等の点で好ましい。
頭部と垂下部とに異なる材料を用いる場合、それらを一体化してFLGを形成する。
一体化の態様としては、例えば、上述したFLG14及び15のように、伸縮体をシート状部材で包み、シート状部材の重なり部分を結合させる態様が挙げられる。この態様は、頭部と垂下部との一体化が強固になるという利点がある。
また、図6(A)に示されるFLG14aのように、単に伸縮体とシート状部材とを結合して一体化する態様も挙げられる。
頭部の材料として伸縮体を用いる場合には、伸張下で一体化を行うのが好ましい。
(i)幅
FLGの頭部は、種々の形状とすることができるが、概して、幅(左右方向の長さ)は、着用時に着用者の肌に接触して押圧されても、痛くないように、また、跡を残さないようにする点で、2mm以上であるのが好ましく、5mm以上であるのがより好ましい。また、頭部の幅は、着用時の取扱いが容易であり、また、高コストとならない点で、50mm以下であるのが好ましい。
(ii)上下方向の長さ
FLGは、上下方向の長さのほとんどが垂下部で占められる。
垂下部の上下方向の長さは、頭部と吸収体の表面との距離にもよるが、側部からの吸収体の表面を流れてくる体液を側面でブロックする効果に優れる点で、10mm以上であるのが好ましく、20mm以上であるのがより好ましい。また、
垂下部の上下方向の長さは、特に限定されず、吸収体の表面に接触した状態となってもよいが、高コストとならない点で、50mm以下であるのが好ましい。
FLGは、基本的に、吸収体の表面から離間し、浮き上がった状態で、着用者の肌に接触しているから、着用者の肌と吸収体に吸収された体液や吸収体上に存在する体液とが直接接触することを効果的に防止し、おむつかぶれ等の皮膚トラブルを極めて効果的に抑制することができる。
FLGは、基本的に、吸収体の表面から離間し、浮き上がっているため吸収体の剛性の影響を受けないし、吸収体に対しても、しわ、よれ等を生じさせにくい。すなわち、FLGの垂下部を支えて構造を保持するFLGの頭部が吸収体の表面から大きく離れた位置に存在するため、垂下部が垂下部固定部で吸収体と固定されていても、FLG及び吸収体の動きは、いずれも互いによってほとんど拘束されない。
したがって、吸収体物品の着用時における吸収体のしわ、よれ等が生じにくく、吸収体の吸収能力を十分に発揮することができる。
更に、FLGの頭部を着用者の肌と常時密着させた状態に保つことができるため、着用者の身体の動きにフレキシブルに追従させることが可能となり、着用者の身体の動きによって生じやすい側部からの伝い漏れを抑制することができる。
更に、FLGは、基本的に、吸収体の表面から離間しているから、吸収体と一体的に設計する必要がない。すなわち、吸収体物品においてFLGを設けることにより、吸収体の設計自由度が高くなる。
図8は、本発明の吸収体物品100の模式的な平面図である。図8においては、各部材の詳細は省略し、吸収体物品100の外周縁のみを、長さ方向の中央部に凹部をもつ長方形に近似させて図示してある(着脱部材26は省略してある。)。
図8を用いて、図9以下でFLGの配置を説明するための用語の定義を行う。
一般に、吸収体物品は平面図上で左右対称であるところ、吸収体物品100も平面図である図8上で左右対称であるから、対称軸(幅方向の中央に引かれる線)を縦センターラインCL-aとする。
また、吸収体物品100の長さ方向において前端縁と後端縁との中央の位置に線を引き、横センターラインCL-bとする。横センターラインCL-bの前後の領域を股下部Cとし、股下部Cより前の領域を前身頃F、後ろの領域を後身頃Rとする。なお、吸収体物品の着用時においては、着用者の股下部の会陰は、横センターラインCL-bよりもやや前に位置する(子供用おむつであれば約20mm前に位置する)。
また、一対の垂下部19aの下端部は、長さ方向の全長にわたり、ほぼ並行に配置されている。この態様は、構造がシンプルで、製造プロセスが簡易になる。
股下部Cの横センターラインCL-b近傍においては、垂下部固定部25aで、垂下部19aが吸収体(図示せず)と固定されている。
また、一対の垂下部19b間の離間距離は、股下部で狭く、股下部Cから前端部F及び後端部Rに向かってそれぞれ広くなるように配置されている。この態様は、会陰部にフィットすると同時に、腹部と背部を広く包む構造で、着用しやすい形状になっている。
股下部Cの横センターラインCL-b近傍においては、垂下部固定部25bで、垂下部19bが吸収体(図示せず)と固定されている。
また、一対の垂下部19c間の離間距離は、股下部Cから後端部Rに掛けて狭く、股下部Cから前端部Fに向かって広くなるように配置されている。この態様は、便が排出された場合にサイドに拡散しにくい形状となっている。
股下部Cの横センターラインCL-b近傍においては、垂下部固定部25cで、垂下部19cが吸収体(図示せず)と固定されている。
また、一対の垂下部19d間の離間距離は、股下部Cから前端部Fに掛けて狭く、股下部Cから後端部Rに向かって広くなるように配置されている。この態様は、尿が排出された場合に前部からのにじみ出しを防止できる形状となっている。
股下部Cの横センターラインCL-b近傍においては、垂下部固定部25dで、垂下部19dが吸収体(図示せず)と固定されている。
また、一対の垂下部19e間の離間距離は、吸収体物品105と同様に、股下部Cから前端部Fに掛けて狭く、股下部Cから後端部Rに向かって広くなるように配置されているが、吸収体物品106の前身頃Fの前端縁付近において、一対のFLG15eが重なるように設けられている。この態様においては、重なり部分が、着用時に、吸収体物品106の前端部にポケットを形成し、このポケットは、着用者がうつ伏せの姿勢を取ったときに、体液が吸収体(図示せず)の表面を流れて吸収体物品106の前端から漏れ出るのを防ぐ働きをする。
股下部Cの横センターラインCL-b近傍においては、垂下部固定部25eで、垂下部19eが吸収体(図示せず)と固定されている。
股下部Cの横センターラインCL-b近傍においては、垂下部19fの重なった部分が、1箇所の垂下部固定部25fで、吸収体(図示せず)と固定されている。
股下部Cの横センターラインCL-b近傍においては、垂下部19gの重なった部分が、1箇所の垂下部固定部25gで、吸収体(図示せず)と固定されている。
一対の垂下部19hは、股下部Cの横センターラインCL-b近傍において、結合バンド32により互いに結合している。結合バンド32は、吸収体(図示せず)の表面と、結合バンド32の中央に位置する結合バンド固定部34で、結合している。FLG15hの垂下部19hは、前身頃F及び後身頃Rにおいては、吸収体(図示せず)に固定されていないが、股下部においては、結合バンド32を介して間接的に吸収体(図示せず)と固定されている状態となる。
このように、FLGの垂下部が結合バンドを介して間接的に吸収体と固定されている態様は、一対の垂下部の離間距離が比較的広い場合であっても、FLGに無理な応力を掛けずに、垂下部を吸収体と結合させることができるという利点がある。また、垂下部の長さを短くでき、垂下部の材料の使用量を少なくできるという利点もある。
なお、本発明においては、吸収体がその表面をトップシートで被覆されている場合、FLGの垂下部と結合している結合バンドがトップシートと固定されている態様も、結合バンド及びトップシートを介して吸収体と間接的に固定されているから、FLGの垂下部が吸収体と固定されている態様に含まれる。
結合バンドの材料は、特に限定されず、垂下部に用いられる材料と同じてあってもよく、異なっていてもよい。
結合バンド32は、図10(A)に示されるように、その下側の面が、結合部36で、一対の垂下部19hの内側(上側)の面と結合されている。この態様は、結合バンドの幅全体で左右の垂下部を押さえ、固定する効果が大きい。
結合バンド32が垂下部19hと結合する結合部36は、垂下部19hの下端部付近に位置している。
結合バンドと吸収体又は吸収体を被覆するトップシートとの結合の方法、及び、結合バンドと垂下部との結合の方法については、後述する。
結合バンド33と吸収体(図示せず)は、結合バンド33の長さ方向のほぼ中央、かつ、幅方向の中央に位置するスポット状の結合バンド固定部34aで結合しており、結合バンド33の前方及び後方の部分は吸収体(図示せず)と結合していない。
また、結合バンド33と垂下部19hは、結合バンド33の左右両側縁において長さ方向に延在する結合部36bで結合している。
この態様においては、着用時に、結合バンド33がFLG15hと共に股下部Cの結合バンド固定部34aの前方及び後方で立ち上がり、股下部Cの前後にポケットを形成するため、股下部Cの前方に排出される尿と股下部C後方に排出される便とが混ざり合うことを効果的に防止し、臭いやかぶれの発生を抑制することができる。また、尿及び便を効果的に捕集する効果も奏する。
結合バンド33と吸収体(図示せず)は、結合バンド33の長さ方向の後部、かつ、幅方向の中央に位置するスポット状の結合バンド固定部34bで結合しており、結合バンド33の前方の部分は吸収体(図示せず)と結合していない。
また、結合バンド33と垂下部19hは、結合バンド33の左右両側縁において長さ方向に延在する結合部36cで結合している。
この態様においては、着用時に、結合バンド33がFLG15hと共に股下部Cの結合バンド固定部34bの前方で立ち上がり、股下部Cの前方にポケットを形成するため、股下部Cの前方に排出される尿と股下部C後方に排出される便とが混ざり合うことを効果的に防止し、臭いやかぶれの発生を抑制することができる。また、尿を効果的に捕集する効果も奏する。
結合バンド33と吸収体(図示せず)は、結合バンド33の長さ方向の前部、かつ、幅方向の中央に位置するスポット状の結合バンド固定部34cで結合しており、結合バンド33の後方の部分は吸収体(図示せず)と結合していない。
また、結合バンド33と垂下部19hは、結合バンド33の左右両側縁において長さ方向に延在する結合部36dで結合している。
この態様においては、着用時に、結合バンド33がFLG15hと共に股下部Cの結合バンド固定部34cの後方で立ち上がり、股下部Cの後方にポケットを形成するため、股下部Cの前方に排出される尿と股下部C後方に排出される便とが混ざり合うことを効果的に防止し、臭いやかぶれの発生を抑制することができる。また、便を効果的に捕集する効果も奏する。
図11は、FLGの垂下部と吸収体との固定状態の説明図である。図11(A)~図11(D)は、いずれも平面図であり、部材としてはFLG、結合バンド及びトップシートのみを示すが、垂下部固定部及び結合バンド固定部の下側(紙面の奥側)には吸収体(又は吸収体を被覆するトップシート)が存在している。
一対の垂下部の最小離間距離Laは、垂下部の長さにもよるが40mm以下であるのが好ましく、30mm以下であるのがより好ましい。上記範囲であると、幅方向の位置ずれが抑制され、股下部において頭部40を会陰により安定的に位置させておくことが容易となる。
なお、一対の垂下部の最小離間距離は、0mmとすることも可能であるし、一部は重なり合ってもよい。
また、一対の頭部の最小離間距離は、特に限定されないが、股下部において頭部を会陰により安定的に位置させておくためには、会陰の幅以下であるのが好ましい。具体的には、本発明の吸収体物品を子供用の吸収体物品とする場合、一対の頭部の最小離間距離を浮き上がった状態で30~50mmとするのが好ましい。
なお、吸収体がトップシートで被覆されている場合は、垂下部はトップシートと固定され、トップシートを介して間接的に吸収体に結合することになる。
一対の垂下部の重なり部分は、縦センターラインCL-a上に線状に設けられた垂下部固定部44aで、吸収体(図示せず)と固定されている。
このように一対の垂下部の重なり部分を縦センターラインCL-a上のみで固定する場合、垂下部の重なり部分の左右方向の幅Lbは、40mm以下であるのが好ましく、30mm以下であるのがより好ましい。上記範囲であると、垂下部の下端部に「遊び」の部分がなく、安定した状態となる。
FLG38aにおいては、一対の垂下部42a間の結合も、垂下部間結合部46で行われている。
本発明の吸収体物品の製造時において、垂下部固定部44aにおける垂下部42aと吸収体(図示せず)との固定と、垂下部間結合部46における一対の垂下部42a間の結合とは、同時に行ってもよく、別々に行ってもよい。
なお、吸収体がトップシートで被覆されている場合は、垂下部はトップシートと固定され、トップシートを介して間接的に吸収体に結合することになる。
一対の垂下部の重なり部分は、一対の垂下部の下端部付近に線状に設けられた垂下部固定部44bで、トップシート48と固定され、トップシート48を介して吸収体(図示せず)と固定されている。垂下部固定部44bは、長さ方向に並んだドット状に構成されている。
このように一対の垂下部の重なり部分をトップシートを介して吸収体と複数箇所で固定する場合、垂下部の重なり部分の左右方向の幅Lcは、FLG38aのように1箇所で固定する場合と比べて広くすることが可能である。垂下部の重なり部分の左右方向の幅Lcは、特に限定されないが、材料のロス等を考えると80mm以下であるのが好ましく、60mm以下であるのがより好ましい。また、垂下部固定部とトップシート又は吸収体との固定を強固にするためには、40mm以上であるのが好ましい。
FLG38bにおいては、一対の垂下部42b間の結合も、垂下部間結合部46aで行われている。垂下部間結合部46aは、長さ方向に並んだドット状に構成されている。
本発明の吸収体物品の製造時において、垂下部固定部44bにおける垂下部42bとトップシート48との固定と、垂下部間結合部46aにおける一対の垂下部42b間の結合とは、同時に行ってもよく、別々に行ってもよい。
なお、吸収体がトップシートで被覆されていない場合は、垂下部は吸収体に直接結合することになる。
固定及び結合の手段は、例えば、熱シール、超音波シール、ホットメルト等の接着剤の使用が挙げられる。
固定及び結合のパターンは、例えば、ライン状、ドット状、ハッチィング状が挙げられる。
固定及び結合の大きさは、特に限定されないが、例えば、ライン状の場合、ラインの幅が1~3mmであるのが好ましく、また、ラインの長さが10~50mmであるのが好ましい。
固定及び結合の数は、1箇所であってもよく、複数箇所であってもよい。
図12は、FLGと吸収体物品本体への配置の際の固定状態の説明図である。
図12(A)~図12(C)は、いずれも平面図であり、吸収体物品本体の他に、部材としてはFLGのみを、前身頃から股下部にかけてのみ示す。
吸収体物品本体においては、その前端部には、一般に吸収体は存在せず、トップシートを具備する場合にはトップシートが、トップシートを具備しない場合には防漏体が露出した構造になっている。
FLG38dを形成するシート状部材は、その幅方向のほぼ全域で、吸収体物品114の本体(防漏体又はトップシート)と、前端結合部20aにおいて結合している。前端結合部20aの長さ方向の長さS1は、10~80mmの範囲であるのが好ましい。
FLG38dを形成するシート状部材は、その幅方向の内側及び外側の2箇所で、吸収体物品115の本体(防漏体又はトップシート)と、前端結合部20bにおいて結合している。2箇所の前端結合部20bの長さ方向の長さS2は、いずれも20~80mmの範囲であるのが好ましい。2箇所の前端結合部20bの幅R1及びR2は、いずれも2~15mmの範囲であるのが好ましい。
また、各実施形態における各部の構成を任意に組み合わせて、別の実施形態とすることもできる。
12、12’、13 吸収体
14、14’、14a、14b、14c、14d、14e、14f、14’a、14’b、14’c、14’d、15、15a、15b、15c、15d、15e、15f、15g、15h、38、38a、38b、38c、38d フローティングレッグギャザー(FLG)
16、16’、16a、16’a、16’b、16’c、16’d、17、17a、17b、17c、17d、17e、17f、17g、17h、40、40a、40b、40c、40d 頭部
18、18’、18a、18b、18c、18d、18e、18f、18’a、18’b、18’c、18’d、19、19a、19b、19c、19d、19e、19f、19g、19h、42、42a、42b、42c、42d 垂下部
20、20’、20a、20b、20c、21 前端結合部
22、22’、23 後端結合部
24、24’、24a、25、25a、25b、25c、25d、25e、25f、25g、44、44a、44b 垂下部固定部
26、27 着脱部材
28、48 トップシート
30、30’ 糸状ゴム
31 外装シート
32、33、50 結合バンド
34、34a、34b、34c、52 結合バンド固定部
35 ウエストギャザー
36、36a、36b、36c、36d、54 結合部
46、46a 垂下部間結合部
100、101、102、103、104、105、106、107、108、109、110、111、112、113、114、115、116 吸収体物品
C 股下部
CL-a 縦センターライン
CL-b 横センターライン
F 前身頃
M1、M2、M3、M4、M5、M6 伸縮体
R 後身頃
Claims (15)
- シート状の防漏体と、
前記防漏体の上部に少なくとも一層配置された、体液を吸収しうる吸収体と、
前記吸収体の上部に、吸収体物品本体の長さ方向の前端部から前身頃、股下部及び後身頃を経て後端部にわたって配置される左右一対のフローティングレッグギャザーと
を具備する吸収体物品であって、
前記フローティングレッグギャザーが、頭部と前記頭部に連なる垂下部とを有し、前記垂下部の前端部及び後端部が、吸収体物品本体の前端部近傍及び後端部近傍にそれぞれ結合されて、前記垂下部が前記頭部から前記吸収体に向かって垂れ下がるように構成され、
前記フローティングレッグギャザーの前記垂下部が、前身頃及び後身頃においては前記吸収体に固定されておらず、かつ、股下部においてはその下端部が前記吸収体と固定されており、
着用時において、前記フローティングレッグギャザーの前記頭部が、着用者の肌に接触し、かつ、前記吸収体とは離間した状態を保持する、吸収体物品。 - 前記左右一対のフローティングレッグギャザーが、
いずれも前記頭部が外側に、前記垂下部が内側に向き、かつ、
前記垂下部の下端部が、前記吸収体の幅方向の中央近傍で、互いに対向するように配置される、請求項1に記載の吸収体物品。 - 前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部で狭く、股下部から前端部及び後端部に向かってそれぞれ広くなるように配置される、請求項1又は2に記載の吸収体物品。 - 前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部から後端部に掛けて狭く、股下部から前端部に向かって広くなるように配置される、請求項1又は2に記載の吸収体物品。 - 前記左右一対のフローティングレッグギャザーが、
前記垂下部間の離間距離が股下部から前端部に掛けて狭く、股下部から後端部に向かって広くなるように配置される、請求項1又は2に記載の吸収体物品。 - 前記左右一対のフローティングレッグギャザーの前記垂下部の下端部の最小離間距離が40mm以下である、請求項1~5のいずれかに記載の吸収体物品。
- 前記左右一対のフローティングレッグギャザーが、
前記垂下部の一部が股下部において互いに重なるように配置される、請求項1~5のいずれかに記載の吸収体物品。 - 更に、股下部において、前記左右一対のフローティングレッグギャザーの前記垂下部を互いに結合する結合バンドを有し、
前記結合バンドが股下部において前記吸収体と固定されることにより、前記フローティングレッグギャザーの前記垂下部が、間接的に前記吸収体と固定されている、請求項1~5のいずれかに記載の吸収体物品。 - 前記フローティングレッグギャザーの前記垂下部が、股下部において前記吸収体と複数箇所で固定されている、請求項1~8のいずれかに記載の吸収体物品。
- 前記フローティングレッグギャザーの前記垂下部が、切れ目又は切り欠きを有する、請求項1~9のいずれかに記載の吸収体物品。
- 前記フローティングレッグギャザーの前記頭部が、伸縮性を有する、請求項1~10のいずれかに記載の吸収体物品。
- 前記フローティングレッグギャザーが、前記頭部を構成する帯状の伸縮体を伸長させた状態で、前記垂下部を構成するシート状部材と結合させて得られ、前記垂下部にしわを有している、請求項11に記載の吸収体物品。
- 前記フローティングレッグギャザーの前記垂下部の前記前端部及び前記後端部と、吸収体物品本体の前記前端部及び前記後端部近傍との結合が、それぞれ、前記フローティングレッグギャザーを前後方向に伸張させた状態で行われたものである、請求項11又は12に記載の吸収体物品。
- 幅方向における前記左右一対のフローティングレッグギャザーが存在する位置よりも外側に、更に、左右一対のインナーレッグギャザーを具備する、請求項1~13のいずれかに記載の吸収体物品。
- 幅方向における前記左右一対のフローティングレッグギャザーが存在する位置よりも外側に、更に、左右一対のアウターレッグギャザーを具備する、請求項1~14のいずれかに記載の吸収体物品。
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- 2012-02-14 US US14/378,192 patent/US9539152B2/en active Active
- 2012-02-14 KR KR1020147023045A patent/KR101628044B1/ko active IP Right Grant
- 2012-02-14 JP JP2012513396A patent/JP5086492B1/ja not_active Expired - Fee Related
- 2012-02-14 WO PCT/JP2012/053402 patent/WO2013121528A1/ja active Application Filing
- 2012-02-14 CN CN201280069728.9A patent/CN104135979B/zh not_active Expired - Fee Related
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JP2015100615A (ja) * | 2013-11-27 | 2015-06-04 | 大王製紙株式会社 | 吸収体物品 |
JP2017047013A (ja) * | 2015-09-03 | 2017-03-09 | 王子ホールディングス株式会社 | 吸収性物品 |
Also Published As
Publication number | Publication date |
---|---|
US20150080828A1 (en) | 2015-03-19 |
KR20140114438A (ko) | 2014-09-26 |
EP2815732A4 (en) | 2015-10-14 |
JP5086492B1 (ja) | 2012-11-28 |
US9539152B2 (en) | 2017-01-10 |
CN104135979A (zh) | 2014-11-05 |
EP2815732A1 (en) | 2014-12-24 |
CN104135979B (zh) | 2015-12-09 |
EP2815732B1 (en) | 2016-09-14 |
JPWO2013121528A1 (ja) | 2015-05-11 |
KR101628044B1 (ko) | 2016-06-08 |
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