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WO2011125687A1 - Couche, et procédé pour fabriquer une couche - Google Patents

Couche, et procédé pour fabriquer une couche Download PDF

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Publication number
WO2011125687A1
WO2011125687A1 PCT/JP2011/057923 JP2011057923W WO2011125687A1 WO 2011125687 A1 WO2011125687 A1 WO 2011125687A1 JP 2011057923 W JP2011057923 W JP 2011057923W WO 2011125687 A1 WO2011125687 A1 WO 2011125687A1
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WO
WIPO (PCT)
Prior art keywords
sheet
diaper
manufacturing
cut
continuous
Prior art date
Application number
PCT/JP2011/057923
Other languages
English (en)
Japanese (ja)
Inventor
祥宜 三嶋
麻衣子 鈴木
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
Publication of WO2011125687A1 publication Critical patent/WO2011125687A1/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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15699—Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
    • A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15804—Plant, e.g. involving several steps
    • 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/49058—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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by the modular concept of constructing the diaper
    • A61F13/4906—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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis
    • A61F13/49061—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by the modular concept of constructing the diaper the diaper having an outer chassis forming the diaper and an independent absorbent structure attached to the chassis the diaper having one or two waist members forming the diaper waist region and an independent absorbent structure attached to the one or two waist members forming the crotch region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/49058—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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by the modular concept of constructing the diaper
    • A61F2013/49063—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 specially adapted to be worn around the waist, e.g. diapers, nappies characterised by the modular concept of constructing the diaper the diaper having decoupled components

Definitions

  • the present invention relates to a disposable diaper and a method for manufacturing a diaper.
  • One web is divided into two in the width direction, the two divided webs are separated in the width direction, and the two liquid separated panels are connected to each other with a hot-melt adhesive so that the liquid absorbent panel is connected at a constant interval.
  • the two separated webs were cut and separated so that the two separated webs and one liquid absorbent panel connecting the webs became one set.
  • a method of manufacturing a disposable diaper by stacking two webs and fixing the cut ends together is known as a conventional technique (see, for example, Patent Document 1).
  • the manufacturing method of the diaper of the present invention includes a sheet parallel process in which the first sheet and the second sheet are run adjacent to each other, and the first sheet and the second sheet extend.
  • the third sheet is a folded sheet, and it is preferable that the third sheet is stretched by stretching the folded third sheet in the sheet stretching step.
  • the folded third sheet may have a temporary fixing means for preventing the third sheet from expanding until the sheet extending step. Or you may make it a 3rd sheet
  • seat is included.
  • leg receding cut may be further performed on the third sheet.
  • first sheet and / or the second sheet may have an elastic member extending in the traveling direction of the sheet parallel process. Further, the first sheet and / or the second sheet may have a traverse elastic member.
  • a sheet cutting step of running the fourth sheet and cutting the fourth sheet in the running direction to form the first sheet and the second sheet may be included.
  • Another aspect of the present invention is a pant-type diaper manufactured by the above-described diaper manufacturing method, a tape-fixed type diaper, or a refastenable pant-type diaper.
  • the distance from the point where the two sheets start to be separated to the point where the liquid-absorbing panel is attached to the two separated sheets can be shortened, and the manufacturing space can be reduced.
  • FIG. 1 is a perspective view showing a diaper according to a first embodiment of the present invention in a worn state.
  • FIG. 2 is a plan view of the diaper of FIG. 1 developed in a plane, and is a view when viewed from the skin side of the wearer.
  • 3 is a cross-sectional view taken along the line A-A ′ of the diaper of FIG. 2.
  • FIG. 4 is a schematic diagram for explaining a method for manufacturing a diaper according to the first embodiment of the present invention.
  • FIG. 5A is a perspective view of the folded connection sheet
  • FIG. 5B is a cross-sectional view taken along the line BB ′ of the folded connection sheet of FIG. ) Is a development view of the folded connecting sheet of FIG.
  • FIG. 5A is a perspective view of the folded connection sheet
  • FIG. 5B is a cross-sectional view taken along the line BB ′ of the folded connection sheet of FIG. ) Is a development view of the folded connecting sheet of FIG.
  • FIG. 6 is a diagram for explaining a modification of the diaper of the first embodiment of the present invention.
  • FIG. 7 is a perspective view which shows the diaper of the 2nd Embodiment of this invention in a wearing condition.
  • FIG. 8 is a plan view of the diaper of FIG. 7 developed in a plane, and is a view when viewed from the skin side of the wearer.
  • FIG. 9 is a schematic view for explaining a method for manufacturing a diaper according to the second embodiment of the present invention.
  • FIG. 10 is a diagram for explaining a modification of the diaper of the second embodiment of the present invention.
  • FIG. 11 is a diagram for explaining a modification of the diaper of the second embodiment of the present invention.
  • FIG. 10 is a diagram for explaining a modification of the diaper of the second embodiment of the present invention.
  • FIG. 12 is the top view which expand
  • FIG. 13 is the schematic for demonstrating the manufacturing method of the diaper in the 3rd Embodiment of this invention.
  • FIG. 14 is a diagram for explaining a modification of the diaper in the third embodiment of the present invention.
  • FIG. 15 is a diagram for explaining a modification of the diaper in the third embodiment of the present invention.
  • FIG. 16 is the top view which expand
  • FIG. 16 is the top view which expand
  • FIG. 17 is a schematic view for explaining a diaper manufacturing method according to the fourth embodiment.
  • 18A is a perspective view of a connection sheet folded in a different folding manner from FIG. 5, and
  • FIG. 18B is a DD ′ cross section of the connection sheet folded in FIG. 18A.
  • FIG. 18 (c) is a development view of the folded connection sheet of FIG. 18 (a).
  • FIG. 19 is a schematic diagram for explaining a method for manufacturing a diaper according to an embodiment of the present invention when a connection sheet that is not folded is used.
  • FIG. 1 is a perspective view showing the diaper 1A of the first embodiment of the present invention in a worn state
  • FIG. 2 is a plan view of the diaper 1A of FIG. 1 developed on a plane, from the wearer's skin side. It is a figure when it sees.
  • the diaper 1A includes an annular chassis 2A that covers the lower abdomen and buttocks of the wearer, and an absorbent body 3A that covers the crotch of the wearer.
  • the chassis 2A includes a ventral sheet 4A that covers the lower abdomen of the wearer and a back sheet 5A that covers the buttocks, and includes a ventral edge 43A of the ventral sheet 4A and a ventral edge 53A of the dorsal sheet 5A. Are joined by heat fusion means at the joining portion 44A.
  • the length of the ventral side edge 43A of the ventral side sheet 4A is shorter than the length of the ventral side edge 53A of the back side sheet 5A, but the length of the ventral side edge 43A of the ventral side sheet 4A and the back side
  • the length of the ventral edge 53A of the sheet 5A may be the same. As shown in FIG.
  • the shape of the ventral sheet 4 ⁇ / b> A and the dorsal sheet 5 ⁇ / b> A is a rectangular shape. As shown in FIG. 1, an opening around the trunk of the diaper 1A is formed by the upper edge 45A of the ventral sheet 4A and the upper edge 55A of the back sheet 5A.
  • the abdominal sheet 4A and the back sheet 5A are provided with elastic members 41A and 51A that are arranged in a row at a predetermined interval and extend in the waistline direction.
  • the diaper 1A can be fitted to the lower abdomen and the buttocks.
  • a stretchable nonwoven fabric may be used for the ventral sheet 4A and the back sheet 5A. Also in this case, the fit around the waist leg of the diaper 1A can be improved.
  • a non-woven fabric or plastic film having air permeability is used in order to prevent stuffiness during wearing.
  • an elastic fiber such as natural rubber, synthetic rubber, or spandex is used.
  • the absorbent body portion 3A includes a connecting sheet 6A and a liquid absorbent panel 7A.
  • the connection sheet 6A and the liquid absorbent panel 7A have a rectangular shape.
  • the connecting sheet 6A has the lower edge portion 46A of the ventral seat 4A and the lower edge portion 56A of the back seat 5A in a state in which the lower edge portion 46A of the ventral seat 4A and the lower edge portion 56A of the back seat 5A are separated from each other. It is the sheet
  • 6 A of connection sheets become a foundation when attaching liquid absorption panel 7A.
  • the connecting sheet 6A is joined to the ventral sheet 4A and the back sheet 5A using an adhesive such as a hot melt adhesive.
  • the connecting sheet 6 ⁇ / b> A may be a fabric that stretches the fabric itself or a fabric that does not stretch the fabric itself.
  • Liquid absorbing panel 7A is an absorber that absorbs body fluid from the wearer.
  • the length of the liquid absorbent panel 7A in the direction from the ventral sheet 4A toward the back sheet 5A (hereinafter referred to as the vertical direction) is longer than the vertical length of the connecting sheet 6A.
  • the length of the liquid absorbent panel 7A in the horizontal direction orthogonal to the vertical direction is shorter than the length in the horizontal direction of the connecting sheet 6A.
  • the liquid absorbent panel 7A will be described in more detail with reference to FIG. 3 is a cross-sectional view taken along the line A-A ′ of the diaper 1 ⁇ / b> A in FIG. 2.
  • the back sheet 5A is a composite sheet composed of two layers of sheets 57A and 58A.
  • a connecting sheet 6A composed of a single layer sheet is laminated on the back sheet 5A.
  • a liquid absorbent panel 7A is provided on the connecting sheet 6A.
  • the absorbent panel 7A is attached to the connection sheet 6A using an adhesive such as a hot melt adhesive (not shown).
  • the liquid absorbent panel 7A includes a top sheet 71A, a liquid absorber 72A, a back sheet 73A, and a leakage preventing member 74A.
  • the top sheet 71A is a sheet that quickly absorbs the wearer's bodily fluid and transfers it to the liquid absorber 72A. Since the top sheet 71A comes into contact with the skin of the wearer, it is required to have a good touch and safety to the skin. Further, the top sheet 71A is required not to reverse the body fluid absorbed by the liquid absorber 72A.
  • a liquid-permeable sheet such as an air-through nonwoven fabric, a spunbond nonwoven fabric, or a three-dimensional aperture film is used for the top sheet 71A.
  • Liquid absorber 72A is an absorber that absorbs and holds the body fluid of the wearer.
  • the absorbent body 72A is mainly composed of an absorbent member such as cotton-like pulp or a superabsorbent polymer and an absorbent paper that wraps the absorbent member.
  • the back sheet 73A is a liquid-impermeable sheet that does not transmit body fluid and is provided to prevent the discharged body fluid from leaking outside.
  • a waterproof nonwoven fabric, a plastic film made of polyethylene or the like, a composite material of a nonwoven fabric and a plastic film, or the like is used as the material of the back sheet 73A.
  • a leak-proof member 74A is provided at a lateral side edge of the liquid absorbent panel 7A.
  • the leak-proof member 74A allows body fluid discharged from the wearer to leak out from both sides of the liquid absorbent panel 7A. Suppress.
  • the leakage preventing member 74A is provided with an elastic member 75A extending in the longitudinal direction of the liquid absorbent panel 7A. The elastic member 75A stretches the leakage preventing member 74A toward the wearer's skin when worn. Stands up and acts as a leak barrier.
  • the lower edge 46A of the ventral seat 4A, the lower edge 56A of the back seat 5A, and the lateral edge 61A in the lateral direction of the connecting sheet 6A An opening, that is, a leg retraction part is formed.
  • the wearer wears a diaper 1A through his leg through this leg retraction part. That is, the diaper 1A is a so-called pants-type diaper.
  • FIG. 4 is a schematic diagram for explaining a method for manufacturing the diaper according to the first embodiment.
  • the left side is the direction in which the sheet travels, that is, the machine direction MD
  • the vertical direction is the width direction of the sheet, that is, the width direction CD.
  • the manufacturing method of the diaper in the 1st Embodiment of this invention is a composite panel production process (S1), a composite panel cutting process (S2), a folding connection sheet delivery process (S3), and a widening process between cut composite panels (S4). ), A liquid absorbent panel mounting step (S5), a cut composite panel overlaying step (S6), and an adhesion / division step (S7).
  • Composite panel manufacturing process (S1) In the composite panel manufacturing process, first, a continuous first continuous web sheet 101 having a hot melt adhesive applied on the surface is run in the machine direction MD. Next, a plurality of thread-like elastic members 102 are arranged in parallel and attached on the first continuous web sheet 101. And the continuous 2nd continuous web sheet 103 is continuously supplied to the surface where the elastic member 102 of the 1st continuous web sheet 101 was attached to the machine direction MD. Then, the 2nd continuous web sheet 103 is joined with the 1st continuous web sheet 101, and the continuous composite panel 104 is produced.
  • Composite panel cutting process (S2) In the composite panel cutting step, the continuous composite panel 104 running in the machine direction MD is cut in the machine direction MD using a circular slitter 105. As a result, one continuous composite panel becomes two continuous composite panels 107 and 108. The cut continuous composite panels 107 and 108 run side by side adjacent to each other.
  • Folding connection sheet delivery process (S3) In the folded connection sheet delivery step, the folded connection sheet 6A is attached to the continuous composite panel 104 so as to straddle the cut portion 106 of the continuous composite panel 104 using a hot melt adhesive. That is, the folded connecting sheet 6A is placed between the cut continuous composite panels 107 and 108. The connecting sheet 6A that has been folded can be extended by being extended.
  • FIG. 5 shows a schematic diagram of the folded connecting sheet 6A.
  • 5A is a perspective view of the folded connecting sheet 6A
  • FIG. 5B is a cross-sectional view taken along the line BB ′ of the folded connecting sheet 6A in FIG. 5A.
  • C is a development view of the folded connecting sheet 6A of FIG. 5 (a).
  • the left-right direction of FIG. 5 is a longitudinal direction
  • an up-down direction is a transversal direction.
  • the continuous sheet 6A has a cross-sectional shape shown in FIG. 5B by folding the dotted lines 62A and 65A extending in the short direction inward and folding the dotted lines 63A and 64A outward.
  • the connecting sheet 6A can be formed.
  • seat 6A is a substantially (omega) shape.
  • Folding as in the cross-sectional shape of FIG. 5B is hereinafter referred to as folding in a substantially ⁇ shape.
  • the folding of the folding position and the like is included in the folding in a substantially ⁇ shape.
  • the two cut continuous composite panels 107 and 108 can stably run adjacent to each other. it can. In other words, the traveling of one of the cut composite panels 107 and 108 is delayed from the other cut composite panels 107 and 108, and the one cut composite panel 107 and 108 is prevented from moving away from the other cut composite panels 107 and 108.
  • the continuous composite panels 107 and 108 are caused to travel while the interval between the cut continuous composite panels 104 (hereinafter referred to as the continuous cut composite panels 107 and 108) is widened.
  • the continuous cutting composite panels 107 and 108 can be run on different belt conveyors, and the distance between the two belt conveyors can be widened to increase the distance between the two continuous cutting composite panels 107 and 108. .
  • the folded connecting sheet 6A extends.
  • the interval when the interval between the continuous cut composite panels 107 and 108 is widened is preferably an interval at which the extended connecting sheet 6A is tensioned.
  • Liquid absorbent panel mounting process (S5) In the liquid absorbent panel mounting step, the liquid absorbent panel 7A is mounted on the extended connection sheet 6A using a hot melt adhesive.
  • Cutting composite panel overlay process (S6) In the cutting composite panel superimposing step, the continuous cutting composite panels 107 and 108 are superposed such that the outer edges of the continuous cutting composite panels 107 and 108 are aligned with each other so that the surfaces of the continuous cutting composite panels 107 and 108 are in contact with each other. At this time, it is preferable that the continuously cut composite panels 107 and 108 are overlapped so that the crease does not enter the liquid absorbent panel 7A.
  • the continuous cutting composite panel 108 is stacked on the continuous cutting composite panel 107, but the continuous cutting composite panel 107 may be stacked on the continuous cutting composite panel 108. Further, the continuous cut composite panels 107 and 108 may overlap with each other while changing the plane direction.
  • Adhesion / division process (S7) In the bonding / dividing step, positions 109 corresponding to the ventral side edge 43A of the ventral sheet 4A and the ventral side edge 53A of the back side sheet 5A (see FIG. 2) of the overlapped continuous cut composite panels 107 and 108 are heated. Bonding is performed using fusion means or the like. Then, by cutting along the CC ′ one-dot chain line, the overlapped continuous cut composite panels 107 and 108 are divided to form a diaper 1A.
  • the diaper 1A shown in FIG. 2 is manufactured.
  • the diaper 1B shown in FIG. 6 may be manufactured using the manufacturing method of the diaper of the first embodiment. That is, the diaper 1B in which the longitudinal direction of the connecting sheet 6B is longer than the longitudinal length of the liquid absorbent panel 7A and the lateral direction of the connecting sheet 6B is longer than the lateral length of the liquid absorbent panel 7A is the first implementation. You may make it produce using the manufacturing method of the form diaper. Since the connecting sheet 6B is large, the liquid absorbent panel 7A can be more stably attached to the connecting sheet 6B. Further, since the connecting sheet 6B is large, the traveling of the two continuous cutting composite panels 107 and 108 can be adjusted more stably.
  • FIG. 7 is a perspective view showing a diaper 1C of the second embodiment of the present invention in a worn state
  • FIG. 8 is a plan view of the diaper 1C of FIG. 7 developed on a plane, from the skin side of the wearer. It is a figure when it sees.
  • the shape of the ventral sheet 4 ⁇ / b> C and the dorsal sheet 5 ⁇ / b> C is a rectangular shape with two corners cut into a curved shape.
  • a curved leg retraction cut is applied to the lower edge portion 46 ⁇ / b> C of the ventral sheet 4 ⁇ / b> C and the lower edge portion 56 ⁇ / b> C of the back sheet 5 ⁇ / b> C.
  • the leg retraction part formed by the lower edge part 46C of the abdominal side sheet 4C, the lower edge part 56C of the back side sheet 5C, and the horizontal edge part 61A in the lateral direction of the connecting sheet 6A To fit.
  • FIG. 9 is a schematic diagram for explaining a method for manufacturing a diaper according to the second embodiment of the present invention.
  • the manufacturing method of the diaper in the second embodiment of the present invention in that it has a leg cut step (S8) between the folding connection sheet passing step (S3) and the cutting composite panel widening step (S4A). Is different from the diaper manufacturing method in the first embodiment. Therefore, the part of the leg revolving cut process (S8) will be mainly described.
  • leg cut cutting process (S8) The continuous cut composite panels 107 and 108 that have completed the folding connection sheet delivery process then proceed to the leg cut cutting process.
  • a cut line 110 matching the shape of the leg feed portion of the diaper 1C is formed on the continuous cutting composite panels 107 and 108 between two adjacent connecting sheets 6A, and a portion 111 in the cut line 110 is formed. Is removed from the continuous cut composite panels 107 and 108. Since the leg is cut between two adjacent connecting sheets 6A, it is possible to prevent the two continuous cut composite panels 107 and 108 from turning up or moving in the width direction CD when being cut.
  • the shape of the cut line 110 is symmetric with respect to the axis in the width direction CD. Then, the portion 111 in the cut line 110 is removed, and the continuous cut composite panels 107 and 108 then proceed to the cut composite panel widening step described in the manufacturing method of the diaper in the first embodiment.
  • the diaper 1C shown in FIG. 8 is manufactured.
  • the diaper 1D shown in FIG. 10 may be manufactured using the manufacturing method of the diaper of the second embodiment. That is, the diaper 1D in which the curved edge retraction cut is also applied to the lateral edge portion 61D in the lateral direction of the connecting sheet 6D may be produced using the diaper production method of the second embodiment. Good.
  • a leg roll cutting step is performed after the widening step between the cut composite panels, a cut line is formed in a part of the extended connection sheet, and a portion in the cut line of the connection sheet is removed from the connection sheet.
  • the diaper 1E shown in FIG. 11 using the manufacturing method of the diaper of 2nd Embodiment. That is, the diaper 1E in which a part of the lower edge portion 56C of the back side sheet 5C to which the leg is cut is concealed by the liquid absorbent panel 7E having a longer lateral length than the connecting sheet 6A is used. You may make it produce using the manufacturing method of the diaper of 2nd Embodiment.
  • the connecting sheet 6A suppresses wrinkling or distortion of the continuously cut composite panels 107 and 108 that have been subjected to leg-feeding cut over a wide area. Therefore, when attaching such a large liquid-absorbing panel 7E.
  • the method of manufacturing the diaper of the second embodiment can be used.
  • the diaper of the 3rd Embodiment of this invention is demonstrated with reference to drawings. Portions common to the diaper 1C of the second embodiment are denoted by common reference numerals, and portions different from the diaper 1C of the second embodiment are mainly described.
  • the diaper of 3rd Embodiment is provided with the thread-like elastic member formed using the traverse means.
  • FIG. 12 is a plan view in which a diaper 1F of the third embodiment of the present invention is developed in a plane, and is a view when viewed from the skin side of the wearer.
  • a thread-like elastic member 59F is used by using a traverse means which is described in Japanese Patent Application Laid-Open No. Hei 6-197925 and the like and which is known and arranges elastic members in a sine curve shape. Is provided on the back seat 5F in a wavy shape.
  • the wavy elastic member 59F provided by using the traverse means is referred to as a traverse elastic member.
  • the traverse elastic member 59F is provided along the lower edge portion 56C of the dorsal seat 5F where the leg is cut. Due to the expansion and contraction of the traverse elastic member 59F, the leg retraction part formed by the lower edge part 46C of the abdominal sheet 4C, the lower edge part 56C of the back sheet 5F, and the lateral edge part 61A of the connecting sheet 6A So that the back sheet 5F fits more closely to the wearer's buttocks.
  • FIG. 13 is a schematic diagram for explaining a method for manufacturing a diaper according to the third embodiment of the present invention.
  • the manufacturing method of the diaper according to the third embodiment of the present invention is the same as the manufacturing method of the diaper according to the second embodiment in that the traverse elastic member 112 is attached in a stretched state in addition to the thread-like elastic member 102 in the composite panel manufacturing process.
  • the traverse elastic member 112 has a wave shape, and has a mountain portion 112 a and a valley portion 112 b.
  • the folded connection sheet 6A is attached to the continuous cut composite panels 107 and 108 so as to overlap the mountain portion of the traverse elastic member 112.
  • cut lines 110 that match the shape of the leg revolving part of the diaper 1F are formed on the continuous cut composite panels 107 and 108 along the valley portions of the traverse elastic member 111.
  • the connecting sheet 6A and the cut line 110 the traverse elastic member 59F and the leg cuts 46C and 56C can be formed at appropriate positions for the diaper 1F to fit the wearer.
  • the traverse elastic member 112 is wavy, the direction in which the elastic member 112 tends to contract is more complicated than that of the elastic member 102. For this reason, the continuous cutting composite panel 108 is more likely to be wrinkled or distorted than the continuous cutting composite panel 108 of the first and second embodiments.
  • the connecting sheet 6A can suppress the occurrence of wrinkles and distortion of the continuous cut composite panel 108 before and after the widening process between the cut composite panels, the leg cut process and the liquid absorbent panel can be stably performed. An attachment process can be performed.
  • the diaper 1F shown in FIG. 12 is manufactured.
  • the diaper 1G shown in FIG. 14 may be manufactured using the manufacturing method of the diaper of the third embodiment. That is, the diaper 1G in which the traverse elastic member 59F is provided in the back seat 5F and the traverse elastic member 49G is provided in the ventral seat 4G is manufactured using the diaper manufacturing method of the third embodiment. May be.
  • the composite panel manufacturing process in addition to the thread-like elastic member 102, two sets of traverse elastic members 112 whose positions of peaks and valleys are opposite to each other are attached in an extended state.
  • the folded connecting sheet 6A is attached to the continuous cut composite panels 107 and 108 so that the two sets of traverse elastic members overlap with the closest part. Further, in the leg revolving cut process, the cut line 110 that matches the shape of the leg revolving part of the diaper 1G is provided between the two sets of traverse elastic members at the part where the two sets of traverse elastic members are farthest from each other. 107 and 108 are formed.
  • the traverse elastic members 49G and 59F are provided on both the ventral seat 4G and the back seat 5F, the machine direction of the continuous cut composite panel 107 and the continuous cut composite panel 108 due to the contraction of the traverse elastic members 49G and 59F.
  • the MD position may be displaced.
  • the connecting sheet 6A can suppress the displacement of the machine direction MD between the continuous cutting composite panel 107 and the continuous cutting composite panel 108, the leg cut cutting process and the liquid absorbing panel mounting process can be stably performed. It can be carried out.
  • the diaper 1H shown in FIG. 15 may be manufactured using the diaper manufacturing method of the third embodiment. That is, at least a portion 49H of the crest portion of the wavy traverse elastic member having a crest portion and a trough portion is provided on the ventral seat 4H, and the other portion 59H of the wavy traverse elastic member 112 is provided on the back seat 5H.
  • the diaper 1H provided on the diaper may be manufactured by using the diaper manufacturing method of the third embodiment. In this case, in the composite panel cutting step, the continuous composite panel 104 running in the machine direction MD is cut in the machine direction MD so that at least a part of the crest portion of the wavy traverse elastic member 111 is cut.
  • the continuous cutting composite panels 107 and 108 a portion where the traverse elastic member 112 is provided and a portion where the traverse elastic member 112 is not provided are generated in the machine direction MD. For this reason, the direction in which the elastic member 112 tends to contract becomes complicated, and the continuous cut composite panels 107 and 108 tend to be wrinkled and distorted.
  • the connecting sheet 6A can suppress the occurrence of wrinkles and distortion of the continuously cut composite panels 107 and 108 before and after the widening process between the cut composite panels, the leg cut cutting process and the liquid absorption can be stably performed. Panel mounting step can be performed.
  • the diaper of the 4th Embodiment of this invention is demonstrated with reference to drawings. Portions common to the diaper 1C of the second embodiment are denoted by common reference numerals, and portions different from the diaper 1C of the second embodiment are mainly described.
  • the connecting sheet of the diaper of the fourth embodiment is formed from a continuous sheet.
  • FIG. 16 is a plan view in which a diaper 1I of the fourth embodiment of the present invention is developed on a plane, and is a view when viewed from the skin side of the wearer.
  • a straight leg cut is provided on the lateral edge 61I of the connecting sheet 6I.
  • the connecting sheet 6I is formed from a continuous sheet as described in the diaper manufacturing method in the fourth embodiment below.
  • FIG. 17 is a schematic view for explaining a diaper manufacturing method according to the fourth embodiment.
  • the diaper manufacturing method according to the fourth embodiment of the present invention is the second in that the continuous folded continuous connection sheet 113 is attached to the continuous cut composite panels 107 and 108 in the folding connection sheet delivery step. It differs from the diaper manufacturing method in the embodiment. Also in this case, the continuous connection sheet 113 is attached to the continuous cut composite panels 107 and 108 using an adhesive such as a hot melt adhesive. Furthermore, the diaper according to the fourth embodiment of the present invention is that the cut line 110 is formed on the continuous cut composite panels 107 and 108 from the continuous folded continuous connection sheet 113 in the leg cut cutting process. The manufacturing method is different from the diaper manufacturing method in the second embodiment.
  • the continuous folded connecting sheet 113 is supplied to the continuous cutting composite panels 107 and 108, it is not necessary to divide the continuous connecting sheet 113 one by one, and the manufacturing process can be simplified.
  • a space widening step (S4) and a liquid absorbent panel attachment step (S5) for attaching the liquid absorbent panel 7A to the extended connecting sheet 6A were included.
  • the two continuous cut composite panels 107 and 108 can be run side by side adjacent to each other until the inter-cut composite panel widening step (S4) is entered, the two continuous cut composite panels 107, The distance from the point where 108 begins to separate to the point where the liquid-absorbing panel is attached to the two separated continuous cut composite panels 107 and 108 can be shortened, and the manufacturing space can be reduced.
  • connection sheet 6A By using the folded connection sheet 6A, the connection sheet 6A is extended in the inter-cutting composite panel widening step (S4). Thereby, since the connection sheet 6A is folded up to the widening step between cut composite panels (S4), the continuous cut composite panels 107 and 108 can be run adjacent to each other, and the widening step between cut composite panels can be performed. In (S4), the cut continuous composite panels 107 and 108 can be extended in accordance with the widening.
  • the leg cut cutting step (S8) applied to 107 and 108 is performed.
  • the folded connection sheet 6A suppresses turning-up or distortion of the portion of the cut continuous composite panels 107 and 108 to which the leg is cut, so that the leg roll can be appropriately cut.
  • the cutter device for performing the leg repeat cut can be downsized rather than cutting in a separated state. It is possible to reduce the capital investment cost.
  • leg sheet is also cut into the connecting sheet 6A. Thereby, the leg fitting part which fitted more can be formed around a wearer's leg.
  • the cut continuous composite panels 107 and 108 have the elastic member 102 extending in the traveling direction of the composite panel cutting step (S2).
  • a composite panel having an elastic member is easily distorted by contraction of the elastic member.
  • distortion of the continuous cut composite panels 107 and 108 is suppressed by the folded connecting sheet 6A. Therefore, a diaper can be manufactured with high accuracy.
  • the connection sheet 6A can suppress wrinkles generated due to the contraction of the elastic member 102 in the continuous cut composite panels 107 and 108 separated from each other. 7A can be stably attached. That is, the effect of the manufacturing method of the diaper according to the embodiment of the present invention becomes more remarkable when the diaper fabric has the elastic member 102.
  • One or both of the cut continuous composite panels 107 and 108 have a traverse elastic member.
  • a composite panel having a traverse elastic member is likely to be distorted by the contraction of the traverse elastic member, and it may be difficult to cut around the leg rack, etc., but in the diaper manufacturing method according to the embodiment of the present invention, it is folded. Since the connected sheet 6A suppresses the distortion of the cut continuous composite panels 107 and 108 due to the contraction of the traverse elastic member, the diaper can be manufactured with high accuracy. Further, even after the connection sheet 6A is extended, the connection sheet 6A can suppress wrinkles generated due to the contraction of the traverse elastic member in the cut continuous composite panels 107 and 108 separated from each other. 7A can be stably attached. That is, the effect of the manufacturing method of the diaper according to the embodiment of the present invention becomes more remarkable when the diaper fabric has the traverse elastic member 112.
  • the composite panel cutting step (S2) in which the continuous composite panel 104 is run and the continuous composite panel 104 is cut in the running direction to form the cut continuous composite panels 107 and 108 is included.
  • the diapers 1A to J according to the above embodiments and the manufacturing method of the diapers according to the above embodiments can be modified as follows. (1) In the manufacturing method of the diaper in 2nd Embodiment and the manufacturing method of the diaper in 3rd Embodiment, after the folding connection sheet
  • a diaper in which the ventral side edge of the ventral sheet and the ventral side edge of the dorsal sheet are joined that is, a so-called pants-type diaper is manufactured.
  • the diaper of the tape stop type is that the ventral side edge of the ventral sheet and the ventral side edge of the dorsal sheet are not joined, and after wearing the diaper, tape is applied to the ventral side of the ventral sheet It is a diaper which fixes an edge part to a back seat.
  • the refastenable pant-type diaper is a pant-type diaper to which a hook-and-loop fastener or an adhesive tape that allows the abdomen side edge of the abdomen sheet and the abdomen edge of the back sheet to be detachable is attached.
  • one continuous composite panel 104 was cut in the composite panel cutting step and the two continuous composite panels were run side by side adjacent to each other.
  • Two continuous composite panels may be used from the beginning to run adjacent to each other.
  • the continuous composite panel used for the ventral sheet and the continuous composite panel used for the back sheet can be made different. Thereby, the continuous composite panel suitable for each of the ventral sheet and the back sheet can be selected.
  • connection sheet passing step of the diaper manufacturing method a connection sheet folded in a substantially ⁇ shape was used.
  • the continuous cut composite panels 107 and 108 can be caused to run adjacent to each other until the widening step between the cut composite panels (S4).
  • the continuous cut composite panels 107 and 108 are processed.
  • the folding method of the connecting sheet is not limited to the ⁇ -shaped folding method as long as the folding method can be expanded according to the width of the sheet.
  • the connecting sheet 6J folded as shown in FIG. 18 may be attached to the cut continuous composite panels 107 and 108.
  • 18 (a) is a perspective view of the folded connecting sheet 6J
  • FIG. 18 (b) is a DD ′ cross-sectional view of the folded connecting sheet 6J in FIG. 18 (a).
  • (C) is a development view of the folded connecting sheet 6J of FIG. 18 (a).
  • the cross-sectional shape of the folded connecting sheet 6J is substantially Z-shaped.
  • the folding method as shown in FIG. 18 is referred to as a substantially Z-shaped folding method.
  • the folded connection sheet is attached to the continuous composite panel, but the unfolded connection sheet 6K is attached to the continuous composite panel 104 as shown in FIG. It may be pasted.
  • the connecting sheet 6K itself is extended.
  • the connecting sheet 6K does not extend until the widening step between the cut composite panels (S4), the continuous cut composite panels 107 and 108 can be run adjacent to each other, and the widening step between the cut composite panels ( In S4), the cut continuous composite panels 107 and 108 can be extended in accordance with the widening.
  • connection sheet When the size of the connection sheet is larger than the liquid absorbent panel as in the diaper 1B shown in FIG. 6, a liquid-impermeable sheet that does not transmit body fluid is used as the connection sheet to form the liquid absorbent panel. You may make it not provide a back seat
  • the elastic member in order to give elasticity to the abdominal sheet 4A and the dorsal sheet 5A, the elastic member is used, but the fabric itself used for the abdominal sheet 4A and the dorsal sheet 5A.
  • the elastic member may be made not to have elasticity. Examples of stretchable fabrics include stretchable nonwoven fabrics and plastic films.
  • the ventral sheet 4A and / or the dorsal sheet 5A that use stretchable fabric may be configured with a single-layer sheet. Moreover, you may make it give the elasticity to the ventral
  • the elastic member is provided inside the composite panel in the composite panel manufacturing step.
  • the elastic member may be provided on the surface of the composite panel.
  • a single layer of nonwoven fabric or plastic sheet may be used for the ventral sheet and the dorsal sheet.
  • the connecting sheet is joined to the liquid absorbent panel on the surface opposite to the surface joined to the abdominal sheet and the back sheet.
  • the liquid-absorbing panel was attached to the connecting sheet.
  • the liquid absorbent panel may be attached to the connection sheet so that the connection sheet is bonded to the liquid absorption panel on the same surface as the surface bonded to the ventral sheet and the back sheet.
  • the continuous composite panel 104 and the continuous cut composite panels 107 and 108 are constituted by two-layer sheets, but may be constituted by a single-layer sheet or a multilayer sheet having three or more layers. Also good.
  • the continuous composite panel 104 and the continuous cut composite panels 107 and 108 are continuous sheets, but may be sheets cut into one sheet.
  • leg roll cut applied to the lower edge portion 46C of the ventral sheet 4C and the lower edge portion 56C of the back sheet 5C is curved, it is curved according to the shape of the leg roll portion of the desired diaper. You may cut a leg roll into shapes other than the shape. Further, the shape of the cut line applied to the continuously cut composite panels 107 and 108 in the leg revolving cut process is not limited to the above embodiment.
  • the lateral length of the liquid absorbent panel 7A is shorter than the lateral length of the connection sheet 6A, but the lateral length of the liquid absorbent panel 7A is
  • the horizontal length of the connecting sheet 6A may be the same, and the horizontal length of the liquid absorbent panel 7A may be longer than the horizontal length of the connecting sheet 6A.
  • the length of the ventral side edge of the ventral sheet may be shorter than the length of the ventral side edge of the back side sheet, The length and the length of the ventral side edge of the back seat may be the same.

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

Abstract

La présente invention concerne un procédé pour fabriquer une couche, qui comprend une étape pour fixer un panneau absorbeur de liquide à deux feuilles séparées, et grâce auquel l'espace de fabrication peut être réduit, et une couche détachable, une couche à bande adhésive, ou une couche détachable refixable, qui est fabriquée par le procédé pour fabriquer la couche. La présente invention concerne spécifiquement un procédé pour fabriquer une couche, qui comprend : une étape mise en parallèle de feuilles (S2) pour étendre une première feuille et une deuxième feuille de façon adjacente et parallèlement l'une à l'autre ; une étape de pontage de feuille (S3) pour ponter une troisième feuille étirable entre la première feuille et la deuxième feuille ; une étape d'étirage de feuille (S4) pour étirer la troisième feuille en allongeant la distance entre la première feuille et la deuxième feuille de manière à étendre la première feuille et la deuxième feuille ; et une étape de fixation de panneau absorbeur de liquide (S5) pour fixer le panneau absorbeur de liquide à la troisième feuille étirée.
PCT/JP2011/057923 2010-04-01 2011-03-23 Couche, et procédé pour fabriquer une couche WO2011125687A1 (fr)

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WO2013173260A1 (fr) * 2012-05-15 2013-11-21 The Procter & Gamble Company Culotte absorbante jetable présentant une résistance et une fabricabilité avantageuses et procédés de fabrication de celle-ci
CN104780882A (zh) * 2012-11-22 2015-07-15 花王株式会社 短裤型吸收性物品

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JP6032683B2 (ja) * 2014-03-13 2016-11-30 大王製紙株式会社 パンツタイプ使い捨ておむつの製造方法、及びその製造方法により製造可能なパンツタイプ使い捨ておむつ
JP6487234B2 (ja) * 2015-02-16 2019-03-20 株式会社リブドゥコーポレーション 吸収性物品および吸収性物品の製造方法

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JP2013169394A (ja) * 2012-02-22 2013-09-02 Oji Nepia Co Ltd 使い捨ておむつ
WO2013173260A1 (fr) * 2012-05-15 2013-11-21 The Procter & Gamble Company Culotte absorbante jetable présentant une résistance et une fabricabilité avantageuses et procédés de fabrication de celle-ci
CN104284641A (zh) * 2012-05-15 2015-01-14 宝洁公司 具有有利的拉伸和可制造性特征结构的一次性吸收裤及其制造方法
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US10166151B2 (en) 2012-05-15 2019-01-01 The Procter & Gamble Company Disposable absorbent pants with advantageous stretch and manufacturability features, and methods for manufacturing the same
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CN104780882B (zh) * 2012-11-22 2018-04-03 花王株式会社 短裤型吸收性物品

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