WO2016104027A1 - Couche jetable - Google Patents

Couche jetable Download PDF

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Publication number
WO2016104027A1
WO2016104027A1 PCT/JP2015/083109 JP2015083109W WO2016104027A1 WO 2016104027 A1 WO2016104027 A1 WO 2016104027A1 JP 2015083109 W JP2015083109 W JP 2015083109W WO 2016104027 A1 WO2016104027 A1 WO 2016104027A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide line
disposable diaper
bending guide
longitudinal axis
side edge
Prior art date
Application number
PCT/JP2015/083109
Other languages
English (en)
Japanese (ja)
Inventor
規弘 時田
裕樹 合田
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201580070559.4A priority Critical patent/CN107106367A/zh
Priority to KR1020177017404A priority patent/KR102546446B1/ko
Publication of WO2016104027A1 publication Critical patent/WO2016104027A1/fr

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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
    • 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
    • A61F13/49001—Absorbent articles specially adapted to be worn around the waist, e.g. diapers having preferential bending zones, e.g. fold lines or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad

Definitions

  • This disclosure relates to disposable diapers.
  • an absorbent core 34 including an hourglass-shaped central absorbent body 34A and a pair of side absorbent bodies 34B and 34B provided symmetrically on both sides of the central absorbent body 34A. Is described.
  • cut-out portions 34C and 34C each having a hollow shape are formed between the central absorbent body 34A and the pair of side absorbent bodies 34B and 34B.
  • the present disclosure includes a liquid-permeable layer, a liquid-impermeable layer, and an absorbent layer having one side edge, the other side edge, a longitudinal axis, a front end, and a rear end therebetween, A disposable diaper partitioned into a waist area, a back waist area, and a front crotch area and a back crotch area between the front waist area and the back waist area, wherein the disposable diaper is: A first bending guide line disposed in the front crotch region of the absorbent layer between the longitudinal axis and one side edge and extending in the direction of the longitudinal axis, and between the longitudinal axis and the other side edge And a second bending guide line extending in the direction of the longitudinal axis, and each of the first bending guide line and the second bending guide line is at least a compression part, a groove part, or a slit of the absorption layer. And the disposable diaper is between the first folding guide line and the second folding guide line.
  • the central region have found
  • the disposable diaper of the present disclosure follows the three-dimensional shape of the wearer's body in the wearing state.
  • FIG. 1 is a perspective view of a disposable diaper 1 according to one of the embodiments of the present disclosure.
  • FIG. 2 is a plan view of the disposable diaper 1 shown in FIG.
  • FIG. 3 is a plan view of the absorbent layer 4 of the disposable diaper 1 shown in FIG. 2, the core wrap 4 a covering the absorbent layer 4, and the first elastic member 21 and the second elastic member 22.
  • FIG. 4 is an end view taken along the IV-IV end face of FIG.
  • FIG. 5 is an end view taken along the line VV in FIG.
  • FIG. 6 is an end view corresponding to the VV end face of FIG. 3 of the absorbent layer 4 and the core wrap 4a before the bending guide wire embossed portions 30a and 30b are formed.
  • FIG. 1 is a perspective view of a disposable diaper 1 according to one of the embodiments of the present disclosure.
  • FIG. 2 is a plan view of the disposable diaper 1 shown in FIG.
  • FIG. 3 is a plan view of the absorbent layer 4 of the disposable diaper 1 shown
  • FIG. 7 is a diagram illustrating a wearing state of the disposable diaper 1 illustrated in FIG. 1.
  • FIG. 8 is a view for explaining a disposable diaper 1 according to another embodiment of the present disclosure.
  • FIG. 9 is a view for explaining a waist region and a crotch region of a tape-type disposable diaper.
  • front end and rear end regarding the absorbent layer refer to the wearer as a reference, and the end in the abdominal direction of the absorbent layer and the end in the back direction of the absorbent layer, respectively.
  • front body and rear body are a straight line extending in the width direction of the disposable diaper and the front part and the rear when the disposable diaper is divided into two in the longitudinal direction of the disposable diaper, respectively. It is a side part.
  • Pants-type disposable diaper In the pants-type disposable diaper, the waist area includes a front waist area that exists in the front body and a back waist area that exists in the back body.
  • the front waist area means an area sandwiched between a pair of joints joining the front body and the back body of the front body, and the back waist area is sandwiched between the pair of joints of the back body. Means the designated area.
  • the crotch region means a region between the front waistline region and the back waistline region, and the front crotch region existing in the front body and the back crotch existing in the back body. It consists of sub-regions.
  • the crotch region corresponds to a region sandwiched between a pair of leg opening portions (reference numeral 64 in FIG. 8).
  • tape fastener 27 is fixed in a predetermined fixing area 27b for the tape fastener so that the tips 27a of the pair of tape fasteners 27 face each other.
  • the waist region and the crotch region are partitioned.
  • the waistline region (FW + RW) is a state where the waistline forming member 61 of the front body F and the waistline forming member 62 of the back body R of the disposable diaper 1 are fixed in the state described above. A determination is made based on a pair of overlapping portions 63 that overlap.
  • the front waistline region FW means a region between the pair of overlapping portions 63 in the front body F of the disposable diaper 1.
  • the back waistline region RW means a region between the pair of overlapping portions 63 in the back body R of the disposable diaper 1.
  • the crotch region (FC + RC) means a region between the front waistline region FW and the back waistline region RW.
  • the front crotch region FC present in the front body F and the back crotch present in the back body R It consists of partial area RC.
  • FIG. 1 shows a disposable diaper 1 according to the first embodiment in a worn state with a first bending guide line, a second bending guide line, a third bending guide line, and a fourth bending guide line. It is a perspective view of the state bent to the wearer side (liquid permeable layer 2 side).
  • FIG. 2 is a plan view of the disposable diaper 1 shown in FIG.
  • FIG. 3 is a plan view of the absorbent layer 4 of the disposable diaper 1 shown in FIG. 2, the core wrap 4 a covering the absorbent layer 4, and the first elastic member 21 and the second elastic member 22.
  • 4 is an end view at the IV-IV end face of FIG. 2
  • FIG. 5 is an end view at the VV end face of FIG.
  • FIG. 7 is a figure which shows the wearing condition of the disposable diaper 1 shown by FIG.
  • the disposable diaper 1 includes a pair of three-dimensional gathers 25 including an elastic member 26a, an elastic member 26b, a tape fastener 27, and the like.
  • the disposable diaper 1 has a liquid permeable layer 2 as a top sheet, a liquid impermeable layer 3 as a back sheet, and absorption between the liquid permeable layer 2 and the liquid impermeable layer 3.
  • Layer 4. The disposable diaper 1 is divided into a front body F and a back body R, and the front body F is further partitioned into a front waist region FW and a front crotch region FC, and the back body R is a back waist region RW. And further divided into a rear crotch region RC.
  • the absorption layer 4 has one side edge 5a, the other side edge 5b, a longitudinal axis LA, a front end FE, and a rear end RE.
  • the disposable diaper 1 is disposed in the front crotch region FC of the absorbent layer 4 between the longitudinal axis LA and one side edge 5a and extends in the direction of the longitudinal axis LA. 6 and a second bending guide line 7 disposed between the longitudinal axis LA and the other side edge 5b and extending in the direction of the longitudinal axis LA.
  • the disposable diaper 1 has a compression portion, specifically, in the central region 15 between the first bending guide wire 6 and the second bending guide wire 7 in the front crotch region FC. It has the 1st embossed part 13 and the 2nd embossed part 14 which were formed by compressing the absorption layer 4.
  • Each of the first embossed portion 13 and the second embossed portion 14 is a linear embossed portion that extends in a direction that is not parallel to or orthogonal to the direction of the longitudinal axis LA line. Moreover, the 1st embossing part 13 and the 2nd embossing part 14 are not parallel. Since the disposable diaper of the present disclosure has the compression portion in the above-described central region, the rigidity of the absorbent layer in the central region is increased, and the disposable diaper is based on the first folding guide line and the second folding guide line. As described above, the disposable diaper is easily bent in the width direction and on the wearer side.
  • the disposable diaper of the present disclosure can have the compression portion in the central region without particular limitation as long as it is between the first bending guide line and the second bending guide line.
  • the disposable diaper of the present disclosure preferably has the compression portion in the central region in at least the front crotch region, and more preferably in the front crotch region and the front waistline region. This is because the disposable diaper is easily bent in the width direction and on the wearer side with the first bending guide line and the second bending guide line as a basic axis.
  • the disposable diaper of this indication has the said compression part in the center area
  • the rigidity of the absorbent layer in the above-described central region is preferably higher than the rigidity of the absorbent layer in regions other than the central region of the absorbent layer. This is because the disposable diaper is easily bent in the width direction of the disposable diaper and on the wearer side with the first and second bending guide lines as the basic axes.
  • the region other than the central region include a region between one side edge of the absorption layer and the first bending guide line, a region between the other side edge of the absorption layer and the second bending guide line, and the like.
  • the compression portion for example, the embossed portion, formed in the above-described central region includes, for example, an absorbent layer; an absorbent layer and a core wrap; an absorbent layer, a core wrap and a liquid permeable layer; It is formed by compressing, for example, embossing a sheet and a liquid permeable layer.
  • region is axisymmetric with respect to the longitudinal axis of an absorption layer.
  • the first bending guide line 6 has a first base point 16a on the front end FE side and a second base point 17a on the rear end RE side, and the second bending guide line 7 is on the front end. It has a first base point 16b on the FE side and a second base point 17b on the rear end RE side.
  • the first bending guide line 6 In the direction D from the front end FE to the rear end RE, the first bending guide line 6 approaches the longitudinal axis LA as it approaches the first base point 16a, and changes its distance from the longitudinal axis LA as it moves away from the first base point 16a. I won't let you. Further, in the direction D from the front end FE to the rear end RE, the second bending guide line 7 approaches the longitudinal axis LA as it approaches the first base point 16b, and the distance from the longitudinal axis LA as it moves away from the first base point 16b. Do not change.
  • the disposable diaper of this indication becomes easy to bend in the longitudinal direction of a disposable diaper and the wearer side in the 1st basic point of the 1st bending guide line, and the 1st basic point of the 2nd bending guide line ( It becomes easier to have a third bending guide line to be described later).
  • the first bending guide line 6 approaches the longitudinal axis LA as it approaches the second base point 17a, and moves away from the longitudinal axis LA as it moves away from the second base point 17a.
  • the second bending guide line 7 approaches the longitudinal axis LA as it approaches the second base point 17b, and moves away from the longitudinal axis LA as it moves away from the second base point 17b.
  • the disposable diaper of this indication becomes easy to bend in the longitudinal direction of a disposable diaper and a wearer side in the 2nd base point of the 1st bending guide line, and the 2nd base point of the 2nd bending guide line ( It becomes easy to have the 4th bending guide line mentioned below).
  • the distance D 2 between the second base point 17a and the longitudinal axis LA of the first folding guide line 6 the distance between the first base point 16a and the longitudinal axis LA of the first folding guide line 6 D less than one.
  • the distance D 2 between the second base point 17b and the longitudinal axis LA of the second folding guide line 7 than the distance D 1 of the between the first base point 16b and the longitudinal axis LA of the second folding guide line 7 also short.
  • Distance D 2 between the second base point 17a and the longitudinal axis LA of the first folding guide line 6 is shorter than the distance D 3 between the second base point 17a and one side edge 5a, i.e., the second base point 17a Is closer to the longitudinal axis than one side edge 5a.
  • the distance D 2 between the second base point 17b and the longitudinal axis LA of the second folding guide line 7 is shorter than the distance D 3 between the second base point 17b and the other side edge 5b, i.e., the The two base points 17b are closer to the longitudinal axis than the other side edge 5b.
  • the disposable diaper 1 is further equipped with the 3rd bending induction line 8 and the 4th bending induction line 9 which are extended in the width direction W of the disposable diaper 1, and the 3rd bending induction line 8 is 1st.
  • the first bending guide line 6 includes the first base point 16a of the first bending guide line 6 and the first base point 16b of the second bending guide line 7, and the fourth bending guide line 9 is the second base point 17a of the first bending guide line 6. And a second base point 17b of the second bending guide line 7.
  • the third folding guide line includes the first base point of the first bending guide line and the first base point of the second bending guide line, so that the disposable diaper of the present disclosure has the third folding point. It becomes easy to bend in the longitudinal direction of a disposable diaper and a wearer side on the basis of a bending guide line.
  • the disposable diaper of the present disclosure is bent with the first bending guide line and the second bending guide line as the basic axes, the ease of standing up at both ends in the longitudinal direction of the disposable diaper is the first bending guide line and the second bending guide line.
  • the third bending guide line includes the first base point of the first bending guide line and the first base point of the second bending guide line, although it varies depending on the extending direction of the bending guide line and the elastic member of the disposable diaper.
  • the fourth folding guide line includes the second base point of the first bending guide line and the second base point of the second bending guide line, so that the disposable diaper of the present disclosure has the fourth folding point. It becomes easy to bend in the longitudinal direction of a disposable diaper and a wearer side on the basis of a bending guide line. The operation is the same as that of the third bending guide line.
  • each of the third folding guide line and the fourth folding guide line is an absorbent layer (or disposable diaper). It is preferable to be orthogonal to the longitudinal axis.
  • the wearer's body is basically symmetrical, from the viewpoint of wearing feeling.
  • the third bending guide line 8 includes a pair of notches 23a and 23b extending from both the one side edge 5a and the other side edge 5b toward the longitudinal axis LA, and the fourth fold.
  • the bending guide line 9 includes a pair of notches 24a and 24b extending from both the one side edge 5a and the other side edge 5b toward the longitudinal axis LA.
  • the third bending guide line and / or the fourth bending guide line includes a pair of cutout portions, whereby the rigidity of the third bending guide line and / or the fourth bending guide line is increased.
  • the longitudinal direction of the disposable diaper is lower than the rigidity of the region other than the bending guide line, that is, the region having no notch, and the disposable diaper is based on the third and fourth bending guide lines. And it becomes easy to bend to the wearer side.
  • the disposable diaper of the present disclosure has the cutout portion, the third bending guide line is easily formed by the position including the first base point, and the fourth bending guide line includes the second base point. It becomes easy to form.
  • the disposable diaper 1 is partitioned by the first base point 16a and the second base point 17a of the first bending guide line 6 and the first base point 16b and the second base point 17b of the second bending guide line 7.
  • region 10 and the disposable diaper 1 was formed in the wearing state by the groin part contact area
  • the groin portion contact area 10 is surrounded by the first bending guide line 6, the second bending guide line 7, the third bending guide line 8, and the fourth bending guide line 9. It is also an area.
  • the front crotch region is mainly sandwiched between the wearer's legs, and the disposable diaper 1 is disposable with the first bending guide wire 6 and the second bending guide wire 7 as a base axis.
  • the diaper 1 is bent in the width direction and on the wearer side.
  • the disposable diaper 1 is changed to the disposable diaper 1 with the third bending guide line 8 and the fourth bending guide line 9 as a base axis. It bends in the longitudinal direction and on the wearer side.
  • the disposable diaper 1 is likely to include the substantially quadrangular frustum-shaped portion 12.
  • the second base point 17a and the second base point 17b (fourth bending guide line 9) of the second bending guide line 7 are arranged in the front crotch region FC, and the entire groin portion contact region 10 is
  • the front torso region FW and the rear crotch region RC are separated from each other and exist inside the front crotch region FC.
  • the disposable diaper of the present disclosure is likely to include a substantially quadrangular frustum-shaped portion with the groin portion contact region as an upper base in a worn state, and easily follows the three-dimensional shape of the wearer's body. Become.
  • the absorption layer 4 in the expansion
  • emphasis is placed on the ease of movement of the wearer, and the absorbent layer is formed into an hourglass shape in the deployed state.
  • the hourglass type absorbent layer has a small area for receiving liquid. Therefore, there is a risk of leakage.
  • the absorbent layer may have an hourglass shape in the deployed state.
  • the first bending guide line 6 has a curved shape that protrudes from one side edge 5a toward the longitudinal axis LA, and the second bending guide line 7 has the other side edge 5b. And has a curved shape protruding toward the longitudinal axis LA.
  • the disposable diaper of the present disclosure is a disposable diaper with the first folding guide line and the second folding guide line as a basic axis. It becomes easy to bend in the longitudinal direction and the wearer side in a state excellent in aesthetic appearance (a state in which there are few wrinkles or the like).
  • the first fold guide line and the second fold guide line have a curved shape, so that when the front crotch region is sandwiched between both legs of the wearer, the disposable diaper is guided to the first fold.
  • the wire and the second bending guide line are used as a base axis, and the disposable diaper is bent in the width direction and on the wearer side.
  • both ends in the longitudinal direction of the disposable diaper are raised, and the disposable diaper can easily follow the three-dimensional shape of the wearer's body.
  • the curved shape is not limited to an arc shape, and the curved shape may have a protruding portion, a hollow portion, or the like.
  • the start point 6 ′ on the front end FE side of one side edge 5 a of the first bending guide line 6 exists in the front waistline region FW, and the other end of the second bending guide line 7.
  • a starting point 7 'on the front end FE side of the side edge 5b exists in the front waistline region FW.
  • the disposable diaper of the present disclosure among the two intersections of the front end side of the two intersections of the first bending guide line and the one side edge and the two intersections of the second bending guide line and the other side edge
  • the disposable diaper is likely to have a three-dimensional shape along the wearer's groin portion (which is likely to have a groin portion contact region described later).
  • the start point on the front end side of the first folding guide line and the second folding guide line exists in the front crotch region.
  • an end point 6 '' on the rear end RE side of one side edge 5a of the first bending guide line 6 exists in the rear crotch region R, and the other side edge of the second bending guide line 7
  • the end point 7 ′′ on the rear end RE side 5b exists in the rear crotch region RC.
  • the disposable diaper of this indication becomes easy to have a solid shape along a wearer's groin part.
  • a force is applied to the rear waist region of the disposable diaper so as to be in close contact with the wearer's waist when worn, the end point on the rear end side of the first folding guide line and the second folding
  • the end point on the rear end side of the guide wire is present in the rear waist area, the three-dimensional shape along the wearer's inguinal portion is liable to be crushed and it is difficult to maintain the shape.
  • the end points on the rear end side of the first bending guide line and the second bending guide line exist in the rear waistline region.
  • the disposable diaper 1 is arranged in the vicinity of one side edge 5a of the absorbent layer 4 (specifically, inside the one side edge 5a) along the direction of the longitudinal axis LA of the absorbent layer 4. And is disposed in the vicinity of the other side edge 5b of the absorbent layer 4 (specifically, inside the other side edge 5b) along the longitudinal direction L of the absorbent layer 4.
  • a second elastic member 22 is provided.
  • the disposable diaper of this indication has the 1st elastic member and the 2nd elastic member, in the wearing state, the disposable diaper becomes easy to bend in the longitudinal direction of a disposable diaper and a wearer side.
  • the vicinity of the side edge includes coincidence with the side edge and the inside and outside of the side edge.
  • the end 21 ′ on the front end FE side of the first elastic member 21 is from the first base point 16 a of the first bending guide line 6 (and the first base point 16 b of the second bending guide line 7). Is also disposed on the front end FE side, and the end 22 'on the front end FE side of the second elastic member 22 is the first base point 16b of the second bending guide line 7 (and the first base point of the first bending guide line 6). 16a) is arranged on the front end FE side. Further, the end 21 ′′ on the rear end RE side of the first elastic member 21 is behind the second base point 17a of the first bending guide line 6 (and the second base point 17b of the second bending guide line 7).
  • the end 22 ′′ on the rear end RE side of the second elastic member 22 is disposed on the end RE side, and the second base point 17b of the second bending guide line 7 (and the second end of the first bending guide line 6). It is arranged closer to the rear end RE than the base point 17a).
  • the disposable diaper is the first base point of the first folding guide line and the first base point of the second bending guide line (for example, the third bending guide line), and the longitudinal direction of the disposable diaper and the wearer
  • the first fold guide line second base point and the second fold guide line second base point for example, the fourth fold guide line
  • the longitudinal direction of the disposable diaper and the wearer side It becomes easy to bend.
  • the elastic member including the first elastic member and the second elastic member those known in the art are used, and examples thereof include polyurethane elastic fibers of about 470 to 940 dtex.
  • the first bending guide wire 6 and the second bending guide wire 7 are compression portions formed by compressing the liquid permeable layer 2 and the absorption layer 4.
  • the first bending guide line 6 is formed by intermittently embossing the liquid permeable layer 2 and the absorbent layer 4 along the first bending guide line 6 as a compression part.
  • An embossed portion 30a is provided.
  • the second bending guide line 7 is formed by intermittently embossing the liquid permeable layer 2 and the absorption layer 4 along the second bending guide line 7, and an embossed part as a compression part. 30b.
  • the first bending guide wire 6 and the second bending guide wire 7 are also groove portions formed by intermittently embossing the liquid permeable layer 2 and the absorption layer 4.
  • the first bending guide line and the second bending guide line include the compression part and / or the groove part, so that the thickness of the first bending guide line and the second bending guide line is thin. Therefore, the disposable diaper is easily bent in the width direction of the disposable diaper and on the wearer side with the first and second bending guide lines as the basic axes.
  • first bending guide line 6 is a low basis weight region extending along the first bending guide line 6 and having a certain width on the absorbent layer 4, and is more than the average basis weight of the absorbent layer 4.
  • a low basis weight region 28a having a low basis weight is provided.
  • the second bending guide line 7 is a low basis weight region that extends along the second bending guide line 7 and has a certain width to the absorbent layer 4, and is based on the average basis weight of the absorbent layer 4.
  • the first fold guide line and / or the second fold guide line has a low basis weight region, so that the disposable diaper has the first fold guide line and / or the second fold guide. It becomes easy to bend
  • the low basis weight region is preferably 30-90% by weight and more preferably 40-80% by weight of the average basis weight of the absorbent layer.
  • the ratio is less than 30%, the absorbed liquid tends to be difficult to move beyond the first bending guide line and the second bending guide line, and when the ratio is more than 90%, disposable diapers
  • the average basis weight of the absorbent layer is preferably 300 to 700 g / m 2 .
  • the 1st bending induction line 6 is provided with the hollow part 29a formed in the surface of the liquid permeable layer 2 side of the absorption layer 4 in the low basic weight area
  • derivation is carried out.
  • the line 7 includes a depression 29b formed on the surface of the absorbent layer 4 on the liquid permeable layer 2 side in the low basis weight region 28b.
  • FIG. 6 is an end view corresponding to the VV end face of FIG. 3 of the absorbent layer 4 and the core wrap 4a before the bending guide wire embossed portions 30a and 30b are formed.
  • the absorbent layer 4 shown in FIG. 6 has a low basis weight region 28a that is a depression 29a, and the low basis weight region 28a includes a bottom portion 28aa on which the bending guide wire embossed portion 30a is formed, and both sides thereof. And an inclined portion 28ab.
  • the absorbent layer 4 shown in FIG. 5 has a low basis weight region 28b which is a recess 29b, and the low basis weight region 28b includes a bottom portion 28ba on which the bending guide wire embossed portion 30b is formed, and its bottom portion 28ba. And inclined portions 28bb on both sides.
  • the bottom portions 28aa and 28ba have the smallest basis weight, and in the inclined portions 28ab and 28bb, the basis weight gradually increases as the distance from the bottom portions 28aa and 28ba increases.
  • the basis weight of the place where the first embossed portion 13 and the second embossed portion 14 are formed is the same as the area around the first embossed portion 13 and the second embossed portion 14.
  • the disposable diaper is easily bent in the width direction of the disposable diaper and on the wearer side with the first and second bending guide lines as the basic axes.
  • the low basis weight region can be formed, for example, according to the method described in JP 2010-233839 of the same applicant.
  • the first bending guide line 6 and the second bending guide line 7 are respectively connected to the liquid permeable layer 2 along the first bending guide line 6 and the second bending guide line 7.
  • the core wrap 4a and the embossed portions 30a and 30b formed by intermittently embossing the low basis weight regions 28a and 28b of the absorbent layer 4 should be embossed in the disposable diaper of the present disclosure. It has an embossed part formed by embossing a layer continuously or intermittently. From the viewpoint of making it difficult for the wearer to feel hardness, the embossed portion is preferably formed by intermittently embossing the layer to be embossed.
  • the layer to be embossed is not particularly limited as long as the first bending guide line and the second bending guide line function as a bending guide line.
  • a part of the low basis weight region of the absorbent layer can be embossed and the whole may be embossed.
  • the absorbent layer is made of pulp fibers and a superabsorbent material.
  • the mass ratio of the superabsorbent material in the low basis weight region is preferably lower than the mass ratio of the superabsorbent material in the region other than the low basis weight region in the absorbent layer.
  • the disposable diaper of the present disclosure is not limited to the above-described embodiment, and in the disposable diaper according to another embodiment of the present disclosure, in principle, by reducing the fiber density of the absorbent layer, the height of the absorbent layer is kept constant, A basis weight region can be formed.
  • the first folding guide line and the second folding guide line extend to the absorption layer along the first folding guide line and the second folding guide line, respectively. And having a low basis weight region having a certain width, and in the low basis weight region, the absorbent layer has a fiber density lower than the average fiber density of the absorbent layer, and as a rule, the height of the absorbent layer is constant. However, it has a lower basis weight than the average basis weight of the absorbent layer.
  • the first bending guide line and the second bending guide line can also be the bending guide lines by reducing the fiber density of the absorbent layer.
  • FIG. 8 is a view for explaining a disposable diaper according to another embodiment of the present disclosure, which corresponds to an end view of the VV end face of FIG. 3 but before the bending guide wire embossing portion is formed.
  • FIG. 8 is a view for explaining a disposable diaper according to another embodiment of the present disclosure, which corresponds to an end view of the VV end face of FIG. 3 but before the bending guide wire embossing portion is formed.
  • the absorption layer 4 shown in FIG. 8 includes an absorption layer 4 ′ between the first bending guide line 6 and the second bending guide line 7, and an absorption layer 4 ′′ outside the first bending guide line 6.
  • the first folding guide line 6 and the second folding guide line 7 are respectively the first folding guide line 6 and the second bending guide line 7.
  • the slit portions 31 a and 31 b of the absorption layer 4 extending along the bending guide line 7 are provided.
  • the slit portion 31a is defined by the absorption layer 4 ′ and the absorption layer 4 ′′
  • the slit portion 31b is defined by the absorption layer 4 ′ and the absorption layer 4 ′ ′′.
  • the disposable diaper of the present disclosure includes an absorbent layer and a core wrap
  • the first folding guide line and / or the second folding guide line includes a slit part
  • one surface of the absorbent layer It is preferable that the core wrap and the core wrap on the other surface of the absorbent layer are joined (joining of the core wraps). Even when the wearer moves, the spacing between the absorbent layers adjacent to the slit portion is kept constant, and the first bending guide line and / or the second bending guide line can continue to function. It is.
  • hot melt adhesives such as synthetic rubber (SIS, SBS, SEPS, SEBS), EVA, polyolefin (PE, PP) hot melt adhesives, embossed core wraps are used. Examples include heat fusion.
  • the core wrap is held even when wet. This is because even when the disposable diaper absorbs liquid such as urine, the first bending guide line and / or the second bending guide line can continue to function.
  • Bonding between core wraps when wet can be evaluated as follows.
  • (1) Measurement of liquid absorption capacity (i) A sample (absorption layer and core wrap) is taken out from the disposable diaper to be evaluated, and its mass: M 0 (g) is measured. When removing the absorbent layer, the elastic member is removed as much as possible.
  • Mass of sample taken out from nylon bag M 1 (g) is measured.
  • the disposable diaper 1 includes a pair of three-dimensional gathers 25 on both sides in the longitudinal direction L of the disposable diaper 1.
  • Each of the pair of three-dimensional gathers 25 has a free end 25a close to the longitudinal axis of the disposable diaper 1 and a fixed end 25b farther from the longitudinal axis LA of the disposable diaper 1 than the free end 25a.
  • the fixed end 25 b is fixed to the liquid permeable layer 2.
  • the free end 25a has elasticity in the longitudinal direction L of the disposable diaper 1 by including the elastic member 26a, and the free end 25a is a top at both ends of the disposable diaper 1 in the longitudinal direction L via the fixing portions 32. It is fixed to the sheet 2.
  • region 10 does not overlap with a pair of solid gathers 25 and the thickness direction of the disposable diaper 1.
  • FIG. By doing so, in the disposable diaper of this indication, an inguinal part contact field becomes easy to keep the shape, and a disposable diaper becomes easy to follow a three-dimensional shape of a wearer's body in a wearing state.
  • the first bending guide line and the second bending guide line are axisymmetric with respect to the longitudinal axis of the absorbent layer.
  • the wearer's body is basically symmetrical, from the viewpoint of wearing feeling.
  • each of the first bending guide line and the second bending guide line does not intersect the longitudinal axis of the absorbent layer.
  • the first base point and the second base point of the first bending guide line, and the groin portion contact region formed by the first base point and the second base point of the second bending guide line is the third fold
  • the embodiment including the bent guide line and the fourth bent guide line, the inguinal portion formed by the first bent guide line, the second bent guide line, the third bent guide line, and the fourth bent guide line is because the contact region is formed on the longitudinal axis of the absorption layer.
  • one or both of the first bending guide line and the second bending guide line may further include an additional base point between the first base point and the second base point. Since the disposable diaper has a new bending guide line for bending the disposable diaper in the longitudinal direction and the wearer side between the third bending guide line and the fourth bending guide line, the disposable diaper However, in a wearing state, it is easier to have a shape along the three-dimensional shape of the wearer's body. As the additional base point, in the direction from the front end to the rear end, the distance from the longitudinal axis is not changed as the additional base point is approached, or the distance from the longitudinal axis is not changed, and as the distance from the additional base point is approached, the longitudinal axis is approached. Things.
  • the disposable diaper of the present disclosure in the wearing state, the first base point and the second base point of the first bending guide line, and the first base point and the second base point of the second bending guide line.
  • a substantially rectangular inguinal portion contact area defined by a base point (a substantially rectangular shape surrounded by a first bending guide line, a second bending guide line, a third bending guide line, and a fourth bending guide line) It is preferable to include a substantially quadrangular frustum-shaped portion with the groin portion contact region as an upper base, by the (groin portion contact region) and the groin portion surrounding region adjacent to the groin portion contact region.
  • the disposable diaper of the present disclosure can be manufactured by combining methods known in the art.
  • the absorption layer of the first embodiment can be manufactured according to the method described in JP 2010-233839 of the same applicant.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'objet de la présente invention est de fournir une couche jetable ayant, lorsqu'elle est portée, une forme s'adaptant à la forme tridimensionnelle du corps d'un utilisateur. Ladite couche selon la présente invention a la structure suivante. La couche jetable (1) comprend une couche (2) perméable aux liquides, une couche (3) imperméable aux liquides, et une couche absorbante prédéfinie (4), est divisée en une région de taille avant (FW), une région de taille arrière (RW), et une région d'entrejambe avant (FC) et une région d'entrejambe arrière (RC) entre celles-ci, et est caractérisée en ce que : dans la région d'entrejambe avant (FC) de la couche absorbante (4), la couche jetable (1) comprend une première ligne guide de pliage (6) formée entre une ligne d'axe longitudinal (LA) et un bord latéral (5a) dans la région d'entrejambe avant (FC) de la couche absorbante (4) et s'étendant dans la direction de la ligne d'axe longitudinal (LA), et une seconde ligne guide de pliage (7) formée entre la ligne d'axe longitudinal (LA) et l'autre bord latéral (5b) et s'étendant dans la direction de la ligne d'axe longitudinal (LA) ; la première ligne guide de pliage (6) et la seconde ligne guide de pliage (7) comprennent chacune des parties comprimées, des rainures ou des fentes sur au moins la couche absorbante (4) ; et la couche jetable (1) comprend des parties comprimées formées en comprimant la couche absorbante (4) dans une région centrale (15) entre la première ligne guide de pliage (6) et la seconde ligne guide de pliage (7).
PCT/JP2015/083109 2014-12-26 2015-11-25 Couche jetable WO2016104027A1 (fr)

Priority Applications (2)

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CN201580070559.4A CN107106367A (zh) 2014-12-26 2015-11-25 一次性尿布
KR1020177017404A KR102546446B1 (ko) 2014-12-26 2015-11-25 일회용 기저귀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-266650 2014-12-26
JP2014266650A JP6271413B2 (ja) 2014-12-26 2014-12-26 使い捨ておむつ

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WO2016104027A1 true WO2016104027A1 (fr) 2016-06-30

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JP (1) JP6271413B2 (fr)
KR (1) KR102546446B1 (fr)
CN (1) CN107106367A (fr)
TW (1) TWI671064B (fr)
WO (1) WO2016104027A1 (fr)

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JP6507193B2 (ja) * 2017-03-30 2019-04-24 大王製紙株式会社 吸収性物品

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JP2003144492A (ja) * 2001-11-15 2003-05-20 Kao Corp 使い捨ておむつ
JP2004049507A (ja) * 2002-07-19 2004-02-19 Crecia Corp 吸収コアおよびこれを備えた使い捨て吸収性物品
JP2005073921A (ja) * 2003-08-29 2005-03-24 Daio Paper Corp 吸収性物品
JP2012010951A (ja) * 2010-06-30 2012-01-19 Daio Paper Corp 吸収性物品

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Publication number Priority date Publication date Assignee Title
CN1232237C (zh) * 2001-09-21 2005-12-21 花王株式会社 一次性尿布
JP4298377B2 (ja) * 2003-05-22 2009-07-15 ユニ・チャーム株式会社 使い捨てのパンツ型着用物品
JP4986585B2 (ja) 2006-11-27 2012-07-25 花王株式会社 吸収性物品
KR101584392B1 (ko) * 2008-09-12 2016-01-11 유니챰 가부시키가이샤 흡수성 물품
JP4689715B2 (ja) * 2008-12-03 2011-05-25 大王製紙株式会社 吸収性物品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003144492A (ja) * 2001-11-15 2003-05-20 Kao Corp 使い捨ておむつ
JP2004049507A (ja) * 2002-07-19 2004-02-19 Crecia Corp 吸収コアおよびこれを備えた使い捨て吸収性物品
JP2005073921A (ja) * 2003-08-29 2005-03-24 Daio Paper Corp 吸収性物品
JP2012010951A (ja) * 2010-06-30 2012-01-19 Daio Paper Corp 吸収性物品

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KR102546446B1 (ko) 2023-06-21
CN107106367A (zh) 2017-08-29
KR20170102245A (ko) 2017-09-08
JP2016123628A (ja) 2016-07-11
TWI671064B (zh) 2019-09-11
JP6271413B2 (ja) 2018-01-31
TW201637632A (zh) 2016-11-01

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