WO2014103840A1 - Dispositif de production de feuille extensible et procédé de production - Google Patents

Dispositif de production de feuille extensible et procédé de production Download PDF

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Publication number
WO2014103840A1
WO2014103840A1 PCT/JP2013/083928 JP2013083928W WO2014103840A1 WO 2014103840 A1 WO2014103840 A1 WO 2014103840A1 JP 2013083928 W JP2013083928 W JP 2013083928W WO 2014103840 A1 WO2014103840 A1 WO 2014103840A1
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WO
WIPO (PCT)
Prior art keywords
continuous
pair
roll
thread
continuous sheets
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PCT/JP2013/083928
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English (en)
Japanese (ja)
Inventor
吉一 小笠原
山本　広喜
美彦 松本
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.)
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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 CN201380059288.3A priority Critical patent/CN104797222B/zh
Publication of WO2014103840A1 publication Critical patent/WO2014103840A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—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

Definitions

  • the present invention provides a stretchable sheet manufacturing apparatus in which individual thread-like elastic members in an extended state are interposed between a pair of continuous sheets and are joined along a crossing direction intersecting the continuous direction of the continuous sheet, And a manufacturing method.
  • stretchable sheets have been used as functional parts of absorbent articles such as disposable diapers. Then, as shown in the schematic perspective view of FIG. 1A, in the manufacturing process, the stretchable sheet is generated in the form of a continuous sheet 10m as the intermediate part. Further, in the stretchable sheet 10m of the intermediate part, for example, the individual thread-like elastic members 13, 13... Stretched between the pair of continuous sheets 11, 12 intersect with the continuous direction of the continuous sheets 11, 12. It is in a state of being interposed and joined in a state along the CD direction.
  • This intermediate product stretchable sheet 10m manufacturing apparatus 120 has a pair of upper and lower parts which are driven and rotated while the corresponding continuous sheets 11 and 12 are wound around the outer peripheral surfaces 21ua and 21da, respectively.
  • a transport mechanism 131 that transports the continuous body 13a of the thread-like elastic member between the rolls 21u and 21d and the pair of continuous sheets 11 and 12 that are overlapped and joined by the pair of upper and lower rolls 21u and 21d.
  • a winding mechanism 141 for winding the continuous body 13a of the thread-like elastic member around the transport mechanism 131 while feeding the continuous body 13a of the thread-like elastic member.
  • the conveyance mechanism 131 includes a pair of belt-shaped conveyance units 132 and 132 provided at respective positions closer to the end side in the CD direction than the continuous sheets 11 and 12 as main bodies. Then, the pair of belt-like conveyance units 132 and 132 conveys the continuous body 13a of the thread-like elastic member wound around itself in the wound state with the longitudinal direction as the conveyance direction.
  • the continuous body 13a of the thread-like elastic member is stretched in the CD direction between the pair of belt-like conveyance units 132 and 132. That is, the continuous body 13a of the thread-like elastic member is provided on the upper portions of the pair of belt-like transport portions 132 and 132 from above, and on the lower portions of the pair of belt-like transport portions 132 and 132, respectively.
  • the transfer portions 13ac extended from below are alternately provided in the transport direction.
  • the passing portion 13ac immediately after winding is in an inclined state with respect to the CD direction.
  • the belt-like transfer portions 132 and 132 are respectively configured to gradually correct this inclination and eliminate the inclination gradually.
  • a pair of upper and lower endless belts 133u and 133d arranged side by side in the vertical direction is a main body. That is, by making a difference in the respective conveyance speed values between the pair of endless belts 133u, 133d, each spanning portion 13ac that is slanted with respect to the CD direction at the beginning of winding is positioned substantially parallel to the CD direction. It has corrected even to.
  • each spanning part 13ac which became substantially parallel to this CD direction is interposed between the continuous sheets 11 and 12, and is joined. Then, in order to change each spanning part 13ac of the continuous body 13a of the thread-like elastic member into individual thread-like elastic members 13, 13,...
  • the continuous body 13a of the thread-like elastic member is cut by 181 and 181, and the above-described stretchable sheet 10m is generally generated as the continuous sheet 10m as described above.
  • the portion 13p of the thread-like elastic member 13 (hereinafter also referred to as the protruding portion 13p) that can protrude from each end edge 10mew, 10mew is as shown in FIG. 2B.
  • the protruding portion 13p Based on the contraction force of the projecting portion 13p, if the edge 10mew, 10mew of the continuous sheet 10m is contracted to the center side and accommodated in the continuous sheets 11, 12, the end 10me of the continuous sheet 10m is accommodated. It seems that the appearance can be improved while removing it.
  • the present invention has been made in view of the above-described conventional problems, and an object of the present invention is to improve the appearance of the stretchable sheet without cutting off the end in the width direction.
  • the main invention for achieving the above object is: An apparatus for producing a stretchable sheet in which individual thread-like elastic members in an elongated state are interposed between a pair of continuous sheets and are joined in a state along a crossing direction intersecting the continuous direction of the continuous sheet.
  • a temporary joining mechanism that temporarily joins the pair of continuous sheets while being transported along the continuous direction of the continuous sheets, and sandwiched with a pressure for temporary joining in the thickness direction of the continuous sheets;
  • a transport mechanism that transports the continuous body of the thread-like elastic member toward the space between the pair of continuous sheets that are sandwiched and temporarily joined by the temporary joining mechanism;
  • a winding mechanism that winds the continuous body of the thread-like elastic member in an extended state around the transport mechanism while feeding out the continuous body of the thread-like elastic member; After the pair of continuous sheets is clamped by the temporary joining mechanism, the continuous body of the thread-like elastic members is cut at a position closer to the end side in the intersecting direction than the continuous sheet to generate the individual thread-like elastic members.
  • a cutting mechanism to A main joining mechanism that, after cutting the continuous body of the thread-like elastic members, performs the main joining by sandwiching the pair of continuous sheets in the thickness direction with a pressure for main joining larger than the pressure for temporary joining. It is a manufacturing apparatus of the elastic sheet characterized by having. Also, This is a method for producing a stretchable sheet in which an individual thread-like elastic member in an extended state is interposed between a pair of continuous sheets in a state along a crossing direction intersecting the continuous direction of the continuous sheet.
  • the main joining mechanism clamps the pair of continuous sheets in the thickness direction with a pressure for main joining that is larger than the pressure for temporary joining. And a method for producing a stretchable sheet.
  • FIG. 1A and 1B are schematic perspective views of a conventional manufacturing apparatus 120 for a stretchable sheet 10.
  • FIG. 2A is a schematic plan view of the continuous sheet 10m before the protruding portion 13p of the thread-like elastic member 13 of each edge 10mew, 10mew of the continuous sheet 10m contracts, and FIG. 2B shows the protruding portion 13p contracted.
  • FIG. 2B shows the protruding portion 13p contracted.
  • it is a schematic plan view of the continuous sheet 10m which shows the state accommodated in the continuous sheet 10m.
  • 3A is a schematic plan view of the stretchable sheet 10 manufactured by the manufacturing apparatus 20 of the first embodiment
  • FIG. 3B is a view taken along the line BB in FIG. 3A.
  • FIG. 3 is a schematic side view of a temporary joining mechanism 21.
  • FIG. 3 is a schematic central cross-sectional view of a winding part 46.
  • FIG. It is explanatory drawing of an example of the application
  • FIG. 8A is a schematic side view of the temporary joining mechanism 21 of the second embodiment, and FIG. 8B is a view taken along the line BB in FIG. 8A.
  • FIG. 9A is a schematic side view of the temporary joining mechanism 21 of the third embodiment, and FIG. 9B is a view taken along the line BB in FIG. 9A. It is a schematic side view of this joining mechanism 61 of other embodiment.
  • a temporary joining mechanism that temporarily joins the pair of continuous sheets while being transported along the continuous direction of the continuous sheets, and sandwiched with a pressure for temporary joining in the thickness direction of the continuous sheets;
  • a transport mechanism that transports the continuous body of the thread-like elastic member toward the space between the pair of continuous sheets that are sandwiched and temporarily joined by the temporary joining mechanism;
  • a winding mechanism that winds the continuous body of the thread-like elastic member in an extended state around the transport mechanism while feeding out the continuous body of the thread-like elastic member; After the pair of continuous sheets is clamped by the temporary joining mechanism, the continuous body of the thread-like elastic members is cut at a position closer to the end side in the intersecting direction than the continuous sheet to generate the individual thread-like elastic members.
  • a cutting mechanism to A main joining mechanism that, after cutting the continuous body of the thread-like elastic members, performs the main joining by sandwiching the pair of continuous sheets in the thickness direction with a pressure for main joining larger than the pressure for temporary joining. It is a manufacturing apparatus of the elastic sheet characterized by having.
  • the continuous body of the thread-like elastic member is cut after the temporary bonding, and the main bonding is performed after the cutting. Therefore, at the time of cutting, the continuous body of the thread-like elastic member and the pair of continuous sheets are in a fragile bonded state. Therefore, each end part of the individual thread-like elastic member generated by the cutting can be quickly contracted in the cross direction based on its contraction force, and can be retracted from the edge of the continuous sheet to the center side in the cross direction. Can be quickly accommodated in the continuous sheet. Then, after being accommodated, the pair of continuous sheets are finally joined and fixed in the accommodated state. Therefore, the individual thread-like elastic members can be prevented from protruding from the edge of the stretchable sheet. And thereby, it is possible to improve the appearance of the stretchable sheet while not cutting off the ends of the pair of continuous sheets.
  • the temporary joining mechanism is A first roll that conveys the one continuous sheet by rotating while driving one continuous sheet of the pair of continuous sheets around the outer peripheral surface; The outer peripheral surface of the first roll is provided facing the outer peripheral surface, and the other continuous sheet of the pair of continuous sheets is driven and rotated while being wound around the outer peripheral surface.
  • a second roll for conveying The transport mechanism moves the continuous body of the thread-like elastic member toward the gap between the pair of continuous sheets that are sandwiched and temporarily joined by the pressure for temporary joining by the first roll and the second roll.
  • Transport, The main joining mechanism is: A third roll that is provided with an outer peripheral surface facing the outer peripheral surface of the first roll and rotates.
  • a fourth roll provided with an outer peripheral surface facing the outer peripheral surface of the third roll;
  • the third roll receives the temporarily joined pair of continuous sheets from the second roll while rotating on the outer peripheral surface, and holds the received pair of continuous sheets in surface contact with the outer peripheral surface. , Conveyed in the rotational direction of the third roll by driving rotation, When the pair of continuous sheets pass through the position where the fourth roll is disposed in the rotation direction, the pair of continuous sheets are sandwiched between the outer peripheral surface of the third roll and the outer peripheral surface of the fourth roll. It is desirable that the pair of continuous sheets be main-bonded by pressing.
  • An apparatus for producing such an elastic sheet At least one continuous sheet of the pair of continuous sheets has a joining portion that joins the continuous body of the thread-like elastic member to each end portion in the intersecting direction of the pair of continuous sheets,
  • the temporary joining mechanism is A reference clamping unit that is provided in correspondence with the position of the joint, and clamps the continuous body of the pair of continuous sheets and the thread-like elastic member in the thickness direction with a predetermined reference pressure;
  • a weak pinch that is provided at a position closer to the end in the intersecting direction than the reference pinching portion and pinches the continuous body of the pair of continuous sheets and the filamentous elastic member in the thickness direction with a pressure smaller than the reference pressure. It is desirable to have a pressure part.
  • the temporary joining mechanism has a reference pressing part corresponding to the position of the joining part in the pair of continuous sheets, and is also on the end side in the cross direction from the joining part.
  • a continuous body of a pair of continuous sheet and a thread-like elastic member is clamped with a pressure smaller than a reference
  • the end portions contract more smoothly and quickly so that the end of the continuous sheet extends in the cross direction. It can be retracted to the center side, so that it can be quickly accommodated in the continuous sheet.
  • the pair of continuous sheets are joined by an adhesive,
  • the portion corresponding to the joint portion has a larger application amount of the adhesive per unit area than the portion on the end side in the intersecting direction than the joint portion.
  • the portion corresponding to the joint portion in the pair of continuous sheets has a larger coating amount per unit area of the adhesive than the end portion portion of the joint portion. . Therefore, it is possible to achieve a more fragile bonded state at the end portion than the bonded portion while securing a stronger bonded state at the bonded portion.
  • An apparatus for producing such an elastic sheet It is desirable that the continuous sheet is heated by the main joining mechanism when being pinched by the main joining mechanism.
  • the continuous sheet is heated at the time of clamping by the present joining mechanism, so that the adhesive of the continuous sheet is softened or melted. And in such a state, a continuous sheet is pinched with the big pressure which is the pressure for this joining. Therefore, it is possible to increase the bonding strength of the adhesive, and as a result, it is possible to reliably fix the continuous sheet to the state during the clamping by the bonding mechanism.
  • the fourth roll is guided so as to reciprocate within a predetermined range in the circumferential direction of the outer peripheral surface of the third roll, It is desirable that the position of the fourth roll within the predetermined range is adjusted in conjunction with the peripheral speed value of the third roll.
  • the position of the fourth roll within the predetermined range is adjusted in conjunction with the peripheral speed value of the third roll. For example, if the peripheral speed value is increased, the fourth roll can be moved upstream in the predetermined range, and if the peripheral speed value is decreased, the fourth roll can be moved downstream in the predetermined range. Therefore, even if the peripheral speed value of the third roll fluctuates, the contracted state of each end of the thread-like elastic member when pinched with the fourth roll can be made to be approximately constant, and as a result, the elastic sheet It becomes easy to align the expansion and contraction characteristics of the.
  • the continuous body of the thread-like elastic member is cut after the temporary joining, and the main joining is performed after the cutting. Therefore, at the time of cutting, the continuous body of the thread-like elastic member and the pair of continuous sheets are in a fragile bonded state. Therefore, each end part of the individual thread-like elastic member generated by the cutting can be quickly contracted in the cross direction based on its contraction force, and can be retracted from the edge of the continuous sheet to the center side in the cross direction. Can be quickly accommodated in the continuous sheet. Then, after being accommodated, the pair of continuous sheets are finally joined and fixed in the accommodated state. Therefore, the individual thread-like elastic members can be prevented from protruding from the edge of the stretchable sheet. And thereby, it is possible to improve the appearance of the stretchable sheet while not cutting off the ends of the pair of continuous sheets.
  • FIG. 3A is a schematic plan view of the stretchable sheet 10 manufactured by the manufacturing apparatus 20 of the first embodiment.
  • FIG. 3B is a view taken along arrow BB in FIG. 3A.
  • the stretchable sheet 10 is a continuous sheet 10 that is continuous in a continuous direction, and is used as a part of a disposable diaper, for example. That is, the stretchable sheet 10 is an intermediate product before becoming a final product. And this elastic sheet 10 is used as a functional component which provides elasticity to a side flap, a waist part, etc. of a diaper, for example.
  • the stretchable sheet 10 includes a pair of continuous sheets 11 and 12 that are overlapped and joined in the thickness direction, and a plurality of thread-like elastic members 13 that are interposed between the pair of continuous sheets 11 and 12. 13 and so on.
  • a plurality of thread-like elastic members 13 are arranged at intervals in the continuous direction along the width direction perpendicular to the continuous direction of the continuous sheets 11 and 12.
  • Each thread-like elastic member 13 is joined to at least one continuous sheet 11 (12) in an expanded state. Therefore, the stretchable sheet 10 is given stretchability in the width direction by the thread-like elastic members 13, 13. That is, if each thread-like elastic member 13, 13... Shrinks, the continuous sheets 11 and 12 also shrink in the width direction and become a plurality of wrinkles. However, the shrinkage force of the thread-like elastic members 13, 13. If the continuous sheets 11 and 12 are pulled against each other, the wrinkles are extended and the continuous sheets 11 and 12 are expanded.
  • the thread-like elastic members 13, 13,... are arranged in the continuous direction with a constant arrangement pitch P0 with respect to the continuous sheets 11, 12, but the arrangement pitch P0 is limited to such an equal pitch. It is not a thing.
  • the arrangement pitch P0 may change periodically.
  • the end portion 13e of the thread-like elastic member 13 does not protrude from the respective end edges 11ee and 12ee in the width direction of the continuous sheets 11 and 12, that is, the thread-like elastic member 13 has a full length. It is accommodated in the continuous sheet
  • Such a thread-like elastic member 13 is, for example, a plurality of elastic filaments joined together to form a bundle, and the elastic filament is, for example, a synthetic resin fiber such as polyurethane fiber or PTT fiber.
  • a specific example of the thread-like elastic member 13 is “Lycra (trademark) DuPont”.
  • the diameter of the thread-like elastic member 13 is, for example, 0.2 mm to 0.5 mm in a natural length state that is a non-extended state, and 0.1 mm to 0.00 mm in a state that is extended up to three times the natural length. 3 mm.
  • the pair of continuous sheets 11 and 12 are continuous sheets having substantially the same dimension in the width direction, and are made of nonwoven fabric, woven fabric, film, or the like. Then, both the pair of continuous sheets 11 and 12 may be made of the same material, or may be made of different materials depending on the case.
  • the existing thing can be used suitably. For example, for non-woven fabrics and woven fabrics, single fibers made of thermoplastic resins such as polyethylene or polyethylene terephthalate, composite fibers with a sheath core structure, or combinations thereof can be used, and films can be used. Even if it exists, the thing made from the thermoplastic resin illustrated above etc. can be used.
  • an adhesive is interposed between the pair of continuous sheets 11, 12, and at least one of the pair of continuous sheets 11, 12 and the pair of continuous sheets 11, 12 is continuous by this adhesive.
  • the sheet 11 (12) and the respective thread-like elastic members 13, 13... Are joined and integrated.
  • a hot melt adhesive can be used.
  • an application pattern of the adhesive on the surface of the continuous sheet 11 (12) a plurality of strip-shaped application areas AL, AM, AS,... 7), or a spiral pattern in which a plurality of spiral-shaped application regions along the continuous direction are discretely arranged in the width direction, or a so-called solid in which adhesive is applied without gaps over the entire predetermined region.
  • a paint pattern may be used as an application pattern of the adhesive on the surface of the continuous sheet 11 (12).
  • FIG. 4 is a schematic perspective view of the manufacturing apparatus 20 for the stretchable sheet 10. As shown in FIG. 4, the manufacturing apparatus 20 superposes a pair of continuous sheets 11 and 12 in the thickness direction while conveying the continuous sheets 11 and 12 along the continuous direction, and sandwiches them with pressure for temporary bonding (N / m 2 ).
  • a temporary joining mechanism 21 for temporary joining, and a continuous body of thread-like elastic members facing each other between the pair of continuous sheets 11 and 12 which are superposed in the thickness direction and sandwiched and joined by the temporary joining mechanism 21 A pair of a transport mechanism 31 for transporting 13a, a winding mechanism 41 for winding the continuous body 13a of the filamentous elastic member 13a in a stretched state while feeding the continuous body 13a of the filamentous elastic member, and a temporary joining mechanism 21. After the continuous sheets 11 and 12 are clamped, the continuous body 13a of the thread-like elastic member is cut at a position closer to the end side in the width direction than the continuous sheets 11 and 12, thereby generating individual thread-like elastic members 13, 13.
  • Cutting mechanism 51 After cutting the continuous body 13a of the thread-like elastic member, a pair of continuous sheets 11 and 12 nipped in the thickness direction under a pressure (N / m 2) for a large main bonding than the pressure for the temporary bonding of the And a main joining mechanism 61 that performs the main joining.
  • the transport mechanism 31 includes a pair of belt-shaped transport units 32 and 32 as main bodies, and each belt-shaped transport unit 32 is disposed at each position on the end side in the width direction from the continuous sheets 11 and 12, respectively.
  • Each of the belt-like transport units 32 and 32 can transport the continuous body 13a of the thread-like elastic member along the longitudinal direction thereof, that is, transport the continuous body 13a of the thread-like elastic member with the longitudinal direction as the transport direction. To do. Therefore, the continuous body 13a of the thread-like elastic member wound around the pair of belt-like transport portions 32 and 32 by the winding mechanism 41 is sequentially transported toward the temporary joining mechanism 21 in this wound state. .
  • the continuous body 13a of the thread-like elastic member is stretched across the pair of belt-like transport portions 32, 32 in the width direction. That is, the continuous body 13a of the thread-like elastic member includes an upper spanning portion 13ac (hereinafter also referred to as an upper spanning portion 13ac) that is spanned from above on each of the upper portions of the pair of belt-shaped transport portions 32 and 32, and A pair of belt-like conveyance sections 32, 32 has a crossover portion 13ac (hereinafter also referred to as a lower crossover portion 13ac) that is stretched from below to the lower portions of the belt-shaped conveyance sections 32, 32 alternately.
  • an upper spanning portion 13ac hereinafter also referred to as an upper spanning portion 13ac
  • a pair of belt-like conveyance sections 32, 32 has a crossover portion 13ac (hereinafter also referred to as a lower crossover portion 13ac) that is stretched from below to the lower portions of the belt-shaped conveyance sections 32, 32 alternately.
  • the passing portion 13ac immediately after winding is inclined obliquely with respect to the width direction. Therefore, in order to gradually correct this inclination and substantially eliminate this inclination while the transfer portion 13ac is being transferred toward the temporary joining mechanism 21, the respective belt-like transfer portions 32 and 32 are each set to a predetermined value. Ingenuity is given. That is, each of the belt-like conveyance units 32 and 32 intersects with both the conveyance direction of the continuous body 13a of the thread-like elastic member and the width direction of the continuous sheets 11 and 12 (corresponding to the vertical direction in the example of FIG. 4).
  • Each spanned portion 13ac is corrected to a posture substantially parallel to the width direction.
  • the spanning portions 13ac that are substantially parallel to the width direction are interposed between the continuous sheets 11 and 12 by the temporary joining mechanism 21 and are attached to the respective surfaces of the continuous sheets 11 and 12. Superposed and clamped by temporary bonding pressure to be temporarily bonded.
  • the upper portions of the pair of belt-like conveyance portions 32, 32 correspond to the pair of upper endless belts 33u, 33u, respectively, and the lower portions of the pair of belt-like conveyance portions 32, 32 are also the lower portions of the pair. This corresponds to the endless belts 33d and 33d.
  • the continuous body 13a of the thread-like elastic member temporarily joined to the pair of continuous sheets 11 and 12 in this way is cut by the cutting mechanisms 51 and 51 at each position on the end side in the width direction from the continuous sheets 11 and 12. .. Are thus changed to individual thread-like elastic members 13, 13... Of the continuous body 13a of the thread-like elastic members.
  • the end portion 13e which is the portion 13e protruding from the end edges 11ee and 12ee of the continuous sheets 11 and 12 among the individual thread-like elastic members 13 is mainly itself. Accordingly, the end 13e is accommodated in the continuous sheets 11 and 12.
  • the continuous sheets 11 and 12 are sent to the main joining mechanism 61.
  • the continuous sheets 11 and 12 are sandwiched and finally joined with a main joining pressure larger than the temporary joining pressure, whereby the end portions 13 e of the thread-like elastic member 13 are connected to the continuous sheets 11 and 12.
  • seats 11 and 12 are fixed to the state accommodated in the inside.
  • the elastic sheet 10 is completed with the above.
  • the continuous direction of the continuous sheets 11 and 12 is also referred to as “MD direction”, and the direction orthogonal to the MD direction, that is, the width direction of the continuous sheets 11 and 12 is referred to as “CD direction”. " The thickness direction of the continuous sheets 11 and 12 is orthogonal to both the continuous direction and the width direction.
  • the three directions orthogonal to each other are defined as the vertical direction, the front-rear direction, and the left-right direction.
  • the up-down direction is parallel to the vertical direction
  • the front-rear direction and the left-right direction are parallel to the horizontal direction.
  • the CD direction and the left-right direction are the same direction.
  • the conveyance direction of the continuous body 13a of the filamentous elastic member by the conveyance mechanism 31 is parallel to the front-rear direction.
  • the CD direction (left-right direction) corresponds to the “crossing direction” according to the claims
  • the MD direction corresponds to the “continuous direction” according to the claims.
  • FIG. 5 is a schematic side view of the temporary joining mechanism 21.
  • the temporary joining mechanism 21 includes a pair of upper and lower rolls 21u and 21d that are driven and rotated about rotation axes C21u and C21d facing the CD direction.
  • so-called flat rolls are used for both the upper roll 21u as the first roll and the lower roll 21d as the second roll. That is, both the rolls 21u and 21d are rolls whose outer diameter dimensions are substantially constant over the entire area in the CD direction in which the continuous sheets 11 and 12 are in contact. Then, one continuous sheet 11 of the pair of continuous sheets 11, 12 is wound around the upper roll 21u at a predetermined winding angle, and the other continuous sheet 12 is wound around the lower roll 21d.
  • Both of the continuous sheets 11 and 12 are held in a state in which there is almost no relative slip between the outer peripheral surfaces 21ua and 21da of the rolls 21u and 21d to be wound, thereby driving the rolls 21u and 21d.
  • the continuous sheets 11 and 12 With the rotation, the continuous sheets 11 and 12 are transported along the rotation directions Dcu and Dcd of the rolls 21u and 21d substantially integrally with the outer peripheral surfaces 21ua and 21da of the corresponding rolls 21u and 21d.
  • the upper continuous sheet 11 and the lower continuous sheet 12 are used. Are stacked in the thickness direction and sandwiched by a temporary bonding pressure, whereby the two are bonded together by an adhesive previously applied to at least one of the surfaces to be stacked.
  • the extended portion 13ac of the continuous body 13a of the stretched yarn-like elastic member is in the CD direction (width direction). Since it is put in along, the three members of the upper and lower continuous sheets 11 and 12 and the spanning portion 13ac of the continuous body 13a of the thread-like elastic member are temporarily joined at the time of the temporary joining.
  • the pressure for the temporary bonding (N / m 2), that is, the mechanism for adjusting the pressure of the nip pressure time of upper roll 21u and the lower roll 21d (N / m 2), be appropriately used a known structure Can do.
  • a housing (not shown) that forms the outer shape of the temporary joining mechanism 21, and one of the upper roll 21u and the lower roll 21d that is fixed to the housing 21u (21d) cannot be moved up and down.
  • a configuration having a member and a lifting mechanism (not shown) such as a hydraulic cylinder or a feed screw mechanism that is installed in the housing and supports the second bearing member so as to be vertically movable can be exemplified.
  • the pressure at the time of pinching of the upper roll 21u and the lower roll 21d can be adjusted by adjustment of the up-and-down raising / lowering amount of the 2nd bearing member by an raising / lowering mechanism.
  • the appropriate value of the pressure for temporary bonding can vary depending on the basis weight and type of adhesive used, the application pattern, and the like. For this reason, each set value of the pressure for temporary joining is determined by an actual machine experiment or the like. For example, in an actual machine experiment, the elastic sheet 10 is actually manufactured by the manufacturing apparatus 20 while swinging at a plurality of levels using the basis weight of the adhesive, the coating pattern, and the like as parameters. While confirming the accommodation state of the end portions 13e and 13e of the thread-like elastic member 13, the magnitude of the pressure for temporary joining is determined (FIG. 4). For example, when the accommodation state of the ends 13e and 13e is insufficient, the pressure for temporary joining is lowered.
  • the pressure for temporary bonding acts on the surface to be pressed when the continuous sheets 11 and 12 are pressed in the thickness direction by the pair of rolls 21u and 21d.
  • Pressure N / m 2 . That is, the clamping force (external force) acting per unit area on the clamped surface.
  • the said pressure N / m ⁇ 2 >
  • the drive rotation of the pair of rolls 21u and 21d is performed using, for example, a servo motor (not shown) as a drive source.
  • the rotation speed of the servo motor is controlled by an appropriate control device (not shown).
  • the production speed value (m / min) of other devices in the absorbent article production line. ) (For example, in proportion), the peripheral speed values (m / min) of the rolls 21u and 21d are changed. For example, if the speed of the other device increases, the peripheral speed value (m / min) of the rolls 21u and 21d is increased by an amount corresponding to the speed, and conversely, if the other device decelerates, the amount corresponding to that increases.
  • the peripheral speed value (m / min) is decelerated.
  • the temporary joining mechanism 21 can always supply the stretchable sheet 10 at a supply speed value (m / min) required by another device in cooperation with the main joining mechanism 61 described later.
  • the transport mechanism 31 has belt-shaped transport units 32 and 32 on the left and right in the CD direction, respectively.
  • Each belt-shaped transport unit 32 is arranged so as to straddle the temporary joining mechanism 21 in the front-rear direction while striding the temporary joining mechanism 21 in the front-rear direction, with its longitudinal direction facing the front-rear direction.
  • a conveying path for the continuous body 13a of the thread-like elastic member is formed.
  • Each belt-like transport unit 32 has a pair of upper and lower endless belts 33u and 33d.
  • Each endless belt 33u, 33d is wound around a pair of pulleys 34u, 34u, 34d, 34d disposed at both ends in the front-rear direction.
  • At least one of the pulleys 34u and 34d is connected to servo motors 35u and 35d serving as drive sources, so that the rotational speed value can be set for each of the endless belts 33u and 33d.
  • the circular orbits of the endless belts 33u and 33d are positioned on the end side in the CD direction, and the end side track Tr1 is more in the CD direction than the end side track Tr1.
  • the center side track Tr2 is located on the center side. In the end-side track Tr1, the endless belts 33u and 33d move forward in the front-rear direction, while in the center-side track Tr2, move backward, and are thus wound around the pair of belt-like conveyance units 32 and 32.
  • the continuous body 13a of the thread-like elastic member is held by the endless belts 33u, 33d, 33u, and 33d that move on the end-side track Tr1, so that it is conveyed forward in the front-rear direction and finally reaches the temporary joining mechanism 21.
  • the direction of the belt surfaces of the endless belts 33u and 33d is basically the direction in which the normal direction of the surfaces is parallel to the CD direction, but in some cases, for example, greater than 0 ° and less than 60 ° from the CD direction. It may be inclined in the angle range.
  • the rotation speeds of the servo motors 35u and 35d for driving the endless belts 33u and 33d are controlled by an appropriate control device. Then, under this rotational speed control, the servomotors 35u, 35d allow the upper endless belt 33u to define the transport speed value (m / min) of the transport mechanism 31 and the lower endless belt 33d.
  • the circumferential speed value (m / min) is changed in conjunction with (for example, in proportion to) the circumferential speed value (m / min) which is the rotational speed value (m / min) of the temporary joining mechanism 21.
  • the peripheral speed values (m / min) of the rolls 21u and 21d of the temporary joining mechanism 21 are changed in order to correspond to the change in the production speed value (m / min) of another apparatus in the absorbent article production line. Even in this case, the conveyance speed value (m / min) of the continuous body 13a of the thread-like elastic member is promptly changed to the speed value corresponding thereto.
  • the winding mechanism 41 includes a thread-like elastic member from a coil body 13C of a thread-like elastic member (a continuous body 13a of a thread-like elastic member wound around a suitable winding member such as a bobbin in a coil shape).
  • the continuous body 13a is wound around the rear end portion 31b of the transport mechanism 31 while being fed out. Therefore, the winding mechanism 41 includes a feeding part 43 that feeds the continuous body 13a of the thread-like elastic member from the coil body 13C of the thread-like elastic member that is rotatably supported by the reel mechanism 42, and a thread-like elasticity that is fed from the feeding part 43.
  • a winding portion 46 that winds the member continuous body 13 a around the rear end portion 31 b of the transport mechanism 31.
  • the feeding portion 43 feeds the continuous body 13a of the thread-like elastic member from the coil body 13C attached to the reel mechanism 42 and sets the tension of the continuous body 13a within a predetermined tension range, and then the winding speed of the winding portion 46.
  • the continuous body 13a of the thread-like elastic member is supplied to the winding section 46 at a predetermined supply speed value (m / min) corresponding to the winding speed value.
  • the above-described tension range is determined in advance based on the minimum tension within a range in which the continuous body 13a of the thread-like elastic member does not loosen, and is, for example, 0.0298N to 0.098N.
  • the ratio of the winding speed value of the winding section 46 to the supply speed value of the feeding section 43 is the continuous body 13a of the thread-like elastic member at the time of winding around the transport mechanism 31.
  • the expansion magnification is. Therefore, by adjusting the supply speed value in conjunction with the winding speed value, the continuous body 13a of the thread-like elastic member can be wound around the transport mechanism 31 almost always at the target extension magnification.
  • the expansion ratio is an index indicating how many times the continuous body 13a of the thread-like elastic member is extended from its natural length.
  • the length LS in the extended state is divided by the natural length L0.
  • the divided value ( LS / L0).
  • the feeding portion 43 an upstream position in the supply route of the continuous body 13a of the filamentous elastic member from the coil body 13C of the reel mechanism 42 to the winding portion 46, that is, close to the coil body 13C.
  • a supply roll 45 provided at a position downstream of the tension controller 44 in the supply route, that is, at a position close to the winding portion 46 in the supply route.
  • the tension controller 44 performs feedback control of the feed amount from the coil body 13C so that the tension of the continuous body 13a of the thread-like elastic member at the nearest downstream position falls within a predetermined tension range.
  • the servo motor (not shown) as a drive source of the feeding drive pulley 44p is controlled by an appropriate control device so that the measured value of the tension output from the sensor 44s falls within the preset tension range.
  • FIG. 6 is a schematic central sectional view of the winding portion 46.
  • the winding portion 46 includes a bottomed cylindrical member 46 a disposed in the vicinity of the rear end portion 31 b of the transport mechanism 31 as a main body.
  • a cylinder axis C46a of the bottomed cylindrical member 46a is an axis C46a set at a position substantially the same as the center position of the cross section defined by both the vertical direction and the CD direction of the transport mechanism 31.
  • the axis C46a is set substantially parallel to the front-rear direction.
  • the bottomed cylindrical member 46a is driven to rotate around the cylinder axis C46a.
  • a servo motor 49m is used as the drive source.
  • a small-diameter cylindrical body 47 protrudes backward from the bottom 46ab of the bottomed cylindrical member 46a coaxially with the cylinder axis C46a, and is provided integrally with the small-diameter cylindrical body 47.
  • 49p is fixed on the same axis, and the drive pulley 49p receives the drive rotation operation of the drive rotation shaft 49s of the servo motor 49m via the timing belt 49b.
  • the bottomed cylindrical member 46a is driven to rotate.
  • pulleys 48p, 48p, and 48p are provided at a plurality of positions in the bottomed cylindrical member 46a to hang the continuous body 13a of the thread-like elastic member.
  • These pulleys 48p, 48p, and 48p are configured such that a continuous body 13a of a thread-like elastic member that is supplied from the feeding portion 43 to the bottomed cylindrical member 46a in a running state is set to a front end portion 46af of the bottomed cylindrical member 46a.
  • This is a guide member that guides to the insertion portion 48 t to 31.
  • the pulleys 48p, 48p, and 48p are respectively a front end position on the inner peripheral side of the small-diameter cylindrical body 47, a rear end position of the cylindrical portion 46at of the bottomed cylindrical member 46a, and a front end position of the cylindrical portion 46at. Further, at the front end position, a loading pulley 48t is separately provided as the above-described loading portion 48t. Then, the continuous body 13a of the thread-like elastic member supplied from the feeding portion 43 is wound around the pulleys 48p, 48p, 48p in the above order, so that the continuous body 13a of the thread-like elastic member is as follows. To the charging section 48t.
  • the continuous body 13a of the thread-like elastic member supplied from the feeding portion 43 passes through the inner peripheral side of the small-diameter cylindrical body 47 and reaches the front end position of the small-diameter cylindrical body 47.
  • the traveling direction is changed outward in the radial direction of the bottomed cylindrical member 46a and travels along the bottom 46ab of the bottomed cylindrical member 46a.
  • this traveling leads to the rear end position of the cylindrical portion 46at of the bottomed cylindrical member 46a, but the traveling direction is again changed forward by the pulley 48p at the rear end position to the front end position of the cylindrical portion 46at. It reaches. And finally, it is guided by the pulley 48p at the front end position to the input portion 48t at the same position.
  • the input pulley 48t which is the input portion 48t, has its own rotation axis C48t set in parallel with the cylinder axis C46a of the bottomed cylindrical member 46a. Therefore, the pulley 48t can smoothly and quickly feed the continuous body 13a of the thread-like elastic member toward the rear end portion 31b of the transport mechanism 31 positioned on the inner peripheral side of the bottomed cylindrical member 46a.
  • the front end portion 46af of the bottomed cylindrical member 46a overlaps the rear end portion 31b of the transport mechanism 31. That is, the rear end portion 31b of the transport mechanism 31 is inserted into the bottomed cylindrical member 46a from the front end portion 46af of the bottomed cylindrical member 46a. Therefore, the continuous body 13a of the thread-like elastic member thrown from the feeding portion 48t at the front end position to the rear end portion 31b of the transport mechanism 31 can be reliably wound around the outer periphery of the rear end portion 31b of the transport mechanism 31. .
  • the rotational speed of the servo motor 49m for driving and rotating the winding portion 46 is controlled by an appropriate control device. Then, under the rotational speed control, the servo motor 49m links the winding speed value (m / min) of the winding section 46 with the transport speed value (m / min) of the transport mechanism 31 described above (for example, Change proportionally). Therefore, the peripheral speed values (m / min) of the rolls 21u and 21d of the temporary joining mechanism 21 are changed in order to correspond to the change in the production speed value (m / min) of another apparatus in the absorbent article production line. Even when the influence reaches the transport speed value of the transport mechanism 31, the arrangement pitch in the transport direction (front-rear direction) of the transfer portions 13ac, 13ac. It can be maintained substantially constant. As a result, the arrangement pitch P0 of the thread-like elastic members 13, 13... On the continuous sheets 11, 12 can always be maintained substantially constant regardless of the production speed value of the other devices.
  • the cutting mechanisms 51, 51 are respectively disposed at positions closer to the end side in the CD direction than the transport mechanism 31 in correspondence with the respective belt-shaped transport units 32, 32. It is.
  • Each of the rotary blades 52 and 52 is driven and rotated around the center of the circle, and the edge of the outer peripheral edge of the rotary blade 52 from the end in the CD direction to the continuous body 13a of the thread-like elastic member at the position in charge thereof.
  • the continuous body 13a of the thread-like elastic member is cut at a position closer to the end side in the CD direction than the continuous sheets 11 and 12, and the individual thread-like elastic members 13, 13. .
  • the continuous portion 13ac of the continuous body 13a of the thread-like elastic member stretched in the CD direction between the pair of belt-like transport units 32, 32 arranged in the CD direction is connected to the continuous body 13a of the thread-like elastic member by cutting the rotary blade 52.
  • the span portion 13ac is assembled to the continuous sheets 11 and 12 as individual thread-like elastic members 13.
  • the cutting mechanism 51 is not limited to the rotary blade 52 described above.
  • a fixed blade may be provided, or an ultrasonic cutter that cuts the cutting target while vibrating the blade edge with the generated ultrasonic vibration may be provided.
  • a laser that burns off the object may be provided.
  • it may be configured such that it can be sheared so as to be cut with a scissors, or may be configured so as to be cut with pinching.
  • the main joining mechanism 61 receives the temporary joining state continuous sheets 11 and 12 from the provisional joining mechanism 21 and continues to transport the sheet in the MD direction.
  • the pair of continuous sheets 11 and 12 and the thread-like elastic member 13 are finally joined by clamping in the thickness direction with a pressure (N / m 2 ) for main joining that is larger than 2 ).
  • a pressure N / m 2
  • the pair of continuous sheets 11 and 12 are fixed in a state in which the end portions 13e and 13e of the thread-like elastic member 13 are accommodated, and the stretchable sheet 10 is completed.
  • the main joining mechanism 61 includes a transporting roll 62 (corresponding to a third roll) around which the continuous sheets 11 and 12 are wound around the temporary joining mechanism 21 and an outer peripheral surface 66a of the outer peripheral surface of the transporting roll 62. And a pinching roll 66 for main joining (corresponding to a fourth roll) disposed opposite to 62a.
  • the transport roll 62 is, for example, a flat roll, and is driven to rotate about the rotation axis C62 along the CD direction.
  • the drive source of the drive rotation is, for example, a servo motor (not shown).
  • the transport roll 62 is driven and rotated at substantially the same peripheral speed value (m / min) as that of the upper roll 21u of the temporary joining mechanism 21, and thereby the position Pn2 at which the outer peripheral surfaces 62a and 21ua are brought closest to each other.
  • the second nip position Pn2 the continuous sheets 11 and 12 continuously fed along the MD direction from the upper roll 21u of the temporary joining mechanism 21 are received.
  • the transport roll 62 is provided such that its position can be adjusted in the contact / separation direction with respect to the upper roll 21u. That is, in the example of FIG. 5, the contact / separation direction is the vertical direction, and a lifting mechanism (not shown) such as a hydraulic cylinder or a feed screw mechanism that supports the transport roll 62 so as to be movable up and down is an appropriate fixing system. It is provided on the member. And thereby, the pressure (N / m ⁇ 2 >) at the time of pinching between the upper rolls 21u can be adjusted to arbitrary values.
  • the elevating mechanism the pressure (N / m 2 ) at the time of the above clamping is adjusted to an arbitrary value less than the pressure (N / m 2 ) for main joining.
  • the contraction of the end portions 13e and 13e of the thread-like elastic member 13 that occurs until the main joining is performed is not inhibited.
  • the pressure (N / m 2 ) at the time of the pinching is small, that is, when the pressure is preferably adjusted to be equal to or lower than the pressure for temporary bonding (N / m 2 ). More preferably, the pressure may be adjusted to less than the temporary bonding pressure (N / m 2 ).
  • the pinching roll 66 is, for example, a flat roll, and is arranged at a position downstream of the second nip position Pn2 in the rotation direction Dc62 of the transport roll 62. And it rotates around the rotation axis C66 along the CD direction.
  • the drive source of the drive rotation is, for example, a servo motor (not shown).
  • the pinching roll 66 is driven and rotated at substantially the same peripheral speed value (m / min) as the conveying roll 62, whereby the outer peripheral surfaces 66a and 62a are closest to each other at a position Pn3 (hereinafter referred to as the first roll).
  • the continuous sheets 11 and 12 are clamped with the main joining pressure (N / m 2 ) in cooperation with the outer peripheral surface 62a of the conveying roll 62. 12 and the thread-like elastic member 13 are finally joined.
  • the magnitude of the pressure (N / m 2 ) for main bonding is set to a value larger than the pressure (N / m 2 ) for temporary bonding as described above. Therefore, the pair of continuous sheets 11 and 12 are in a state of being pinched by the pressure for main joining, that is, the end portions 13e and 13e of the thread-like elastic member 13 are accommodated in the pair of continuous sheets 11 and 12, respectively. It is securely fixed to the state where it was done.
  • a well-known structure is appropriately used for a mechanism for adjusting the pressure (N / m 2 ) for main bonding, that is, the pressure (N / m 2 ) at the time of pinching by the pinching roll 66 and the conveying roll 62. can do.
  • a bearing member (not shown) that supports the pinching roll 66 rotatably around the rotation axis C66, and the pinching roll 66 via the bearing member on the outer peripheral surface 62a of the transport roll 62.
  • a moving mechanism such as a hydraulic cylinder or a feed screw mechanism that is movably supported in the approaching / separating direction (both directions of approaching and separating).
  • the moving mechanism is supported by an appropriate fixed system member.
  • the pressure at the time of pinching by the pinching roll 66 and the conveyance roll 62 can be adjusted by adjusting the movement amount of the bearing member in the contact / separation direction by the moving mechanism.
  • the pinching roll 66 may not be a driving roll. That is, it may be a driven roll that rotates with the continuous sheets 11 and 12 or the conveying roll 62 by obtaining rotational force.
  • a heating function for heating the continuous sheets 11 and 12 may be provided to the pinching roll 66. Then, the pinching roll 66 can soften or melt the adhesive by heating the continuous sheets 11 and 12 at the time of contact. And in the said softened state or melted state, if it clamps by the big pressure called the pressure for main joining, it will become possible to join a pair of continuous sheets 11 and 12 with high joining strength.
  • the application of the heating function is realized, for example, by incorporating a heating element that generates heat by power feeding inside the pinching roll 66. In this case, the temperature of the outer peripheral surface 66a of the pinching roll 66 is adjusted by adjusting the power supply amount, but the present invention is not limited to this.
  • a heating function for heating the continuous sheets 11 and 12 may be imparted to the transport roll 62. And even if it does in this way, the effect similar to the case of the above-mentioned pinching roll 66 can be acquired.
  • the appropriate value of the pressure (N / m 2 ) for the main bonding described above may vary depending on the basis weight and type of the adhesive used, the application pattern, and the like. For this reason, each set value of the pressure for this main joining is determined by actual machine experiments or the like. For example, in an actual machine experiment, the elastic sheet 10 is actually manufactured by the manufacturing apparatus 20 while swinging at a plurality of levels using the basis weight of the adhesive, the coating pattern, and the like as parameters. While confirming the joining state such as the joining strength of the thread-like elastic member 13, the magnitude of the pressure for the main joining is determined.
  • the above-described main joining pressure (N / m 2 ) is determined when the continuous sheets 11 and 12 are sandwiched in the thickness direction by both the conveying roll 62 and the sandwiching roll 66. This is the pressure (N / m 2 ) acting on the pressed surface. That is, the clamping force (external force) acting per unit area on the clamped surface.
  • the continuous sheets 11 and 12 move from the position where the cutting mechanism 51 cuts the continuous body 13a of the thread-like elastic member to the position of the pinching roll 66, the end portions 13e and 13e of the individual thread-like elastic members 13 are moved. Shrinkage must be complete.
  • the time required for this movement can vary depending on the peripheral speed value (m / min) of the upper roll 21u and the peripheral speed value (m / min) of the transport roll 62 at substantially the same speed.
  • the pinching roll 66 is preferably configured as follows. First, the pinching roll 66 guides the inside of a predetermined movement allowable range R66 along the outer peripheral surface 62a of the transport roll 62 so as to be able to reciprocate, and in conjunction with the peripheral speed value of the transport roll 62, The position of the pinching roll 66 in the rotation direction Dc62 of the roll 62 may be changed.
  • the pinching roll 66 when the peripheral speed value of the transport roll 62 is the lower limit value of the assumed fluctuation range of the peripheral speed value, the pinching roll 66 is positioned at the upstream end P66 of the above-described allowable movement range R66, The pinching roll 66 may be moved to the downstream side in the rotation direction Dc62 in accordance with the increase in the peripheral speed value from there. Then, the main joining can be reliably performed after the completion of the above-described contraction, regardless of the peripheral speed value of the transport roll 62.
  • FIG. 7 is an explanatory diagram of an example of this application pattern.
  • the continuous sheet 11 (12) is shown in a schematic plan view.
  • the adhesive is applied in a so-called stripe pattern, that is, a pattern in which a plurality of strip-shaped application regions AL, AM, AS,. Further, such a stripe pattern has a plurality of types of strip-shaped application regions AL, AM, AS having different width dimensions. That is, a wide band application area AL that is a wide band application area, an intermediate width band application area AM that is narrower than the wide band application area AL, and a narrow band application that is narrower than the intermediate width band application area AM. And an area AS.
  • the width dimension of the wide band-shaped coating area AL is selected from a range of 15 to 17 mm, for example, and is 15 mm in this example, and the width dimension of the intermediate width band-shaped coating area AM is selected from a range of 3 to 5 mm.
  • the width is 5 mm, and the width dimension of the narrow band application region AS is selected from the range of 0.5 to 1.5 mm, and in this example, 1 mm.
  • the stripe pattern is formed by arranging in the width direction in an appropriate combination.
  • the stripe pattern also has a plurality of types of regions ANL, ANM, and ANS having different width dimensions with respect to the strip-shaped non-application regions ANL, ANM, and ANS.
  • the wide strip-shaped non-coated region ANL which is the wide strip-shaped non-coated region ANL
  • the intermediate-width strip-shaped non-coated region ANM having a narrower width dimension than the wide-width strip-shaped non-coated region ANL
  • the width dimension than the intermediate-width strip-shaped uncoated region ANM Has a narrow narrow band-shaped non-application region ANS.
  • the width dimension of the wide band-shaped non-application area ANL is selected from the range of, for example, 10 to 12 mm, and in this example is 10 mm, and the width dimension of the intermediate width band-shaped non-application area ANM is from the range of 3 to 5 mm. In this example, it is 5 mm, and the width dimension of the narrow band non-application area ANS is selected from the range of 0.5 to 1.5 mm, and in this example is 1 mm.
  • the above-described three types of belt-shaped application regions AL, AM, AS, and three types of stripe patterns are line-symmetrical with respect to the center position CL in the width direction of the continuous sheet 11 (12).
  • the strip-shaped non-application areas ANL, ANM, and ANS are appropriately selected and arranged in the width direction.
  • one edge has an edge 11ee in the width direction.
  • the strip-shaped coating areas AL, AM, AS, and the strip-shaped non-pattern are arranged in the same order as described above from the edge 11ee (12ee) on the half surface toward the center position CL.
  • the application areas ANL, ANM, and ANS are arranged side by side.
  • the basis weights (g / m 2 ) of the adhesives of these three types of strip-shaped application areas AL, AM, and AS are set to the same value.
  • the basis weights (g / m 2 ) of the respective band-shaped application areas AL, AM, AS may be different from each other.
  • the basis weight of the wide strip-shaped application area AL may be made larger than the basis weight of the intermediate-width strip-shaped application area AM.
  • the elastic band 13 is firmly bonded to the continuous sheet 11 (12) in the wide band application area AL, but is weak in the intermediate width band application area AM located on the end side in the width direction.
  • the basis weight of the narrow strip application area AS may be set to an arbitrary value between the basis weight of the wide strip application area AL and the intermediate width strip application area AM. Even in the application region AS, the thread-like elastic member 13 can be sufficiently firmly joined to the continuous sheet 11 (12), whereby vertical stripe-shaped wrinkles are formed in the central portions 11c and 12c in the width direction of the continuous sheet 11 (12). Can be reliably formed.
  • the basis weight (g / m 2 ) of the adhesive in each of the above-described belt-shaped application areas AL, AM, AS is selected from a range of 1 to 40 (g / m 2 ), for example.
  • the thread-like elastic member 13 is not sufficiently fixed, and the thread-like elastic member 13 is peeled off from the continuous sheet 11 (12), and the thread-like elastic member 13 is detached.
  • the adhesive oozes out from the surface of the pair of surfaces of the continuous sheet 11 (12) where the thread-like elastic member 13 is not joined, and the production line is contaminated. It becomes difficult to peel off from an appropriate roller member around which the continuous sheet 11 (12) is wound, or it adheres to other parts of the diaper and impairs the function of the diaper. This is not desirable because it causes trouble.
  • each strip-shaped coating area AL, AM, AS will be described.
  • the main function of the wide band application area AL located at each end portion 11e (12e) in the width direction on the surface of the continuous sheet 11 (12) is to join the thread-like elastic member 13 and the continuous sheet 11 (12).
  • the stretchability is imparted to the continuous sheet 11 (12). That is, the elastic elastic members 13 are joined to the continuous sheet 11 (12) by the wide band-shaped application areas AL positioned at the end portions 11e (12e), so that the elastic properties of the elastic elastic member 13 are continuous. 11 (12), the stretchability is imparted to the continuous sheet 11 (12).
  • the wide band-shaped application area AL having such a function is indispensable in terms of imparting stretchability to the continuous sheet 11 (12), that is, indispensable for constituting the stretchable sheet 10.
  • the adhesive in the wide band-shaped application area AL corresponds to a “joining portion for joining a continuous body of thread-like elastic members” according to the claims.
  • the functions of the plurality of narrow strip application regions AS, AS... Arranged in the center region 11c, 12c in the width direction are mainly as described above.
  • the function is not to impart stretchability to the continuous sheet 11 (12) through joining with the thread-like elastic member 13, and thus the width-band-like application areas AS, AS... Constitute the stretchable sheet 10. It is not essential to do.
  • the function of the intermediate width band-shaped application area AM located on the end side in the width direction with respect to the wide band-shaped application area AL is mainly the function of the edges 11ee, 12ee of the pair of continuous sheets 11, 12. It is to seal. Therefore, this application area AM is not intended to impart stretchability to the continuous sheet 11 (12) through joining with the thread-like elastic member 13 as in the above-described narrow band application area AS.
  • the application area AM is also not essential when configuring the stretchable sheet 10.
  • the end portions 13 e and 13 e of the individual thread-like elastic members 13 in the continuous sheets 11 and 12.
  • the temporary bonding between the thread-like elastic members 13, 13... And the continuous sheet 11 (12) is more fragile. It is necessary to keep something. Therefore, from this viewpoint, it is preferable that the pair of rolls 21u and 21d of the temporary joining mechanism 21 pinch the continuous sheets 11 and 12 with a small pressure at the position of the intermediate width belt-shaped application region AM.
  • the pair of rolls 21u and 21d of the temporary joining mechanism 21 is provided with a reference clamping unit 21AL that clamps with a large reference pressure at a position corresponding to the above-described wide band-shaped application region AL.
  • a weak pressure smaller than the above-described reference pressure.
  • a weak clamping part 21AM that clamps with is provided (FIG. 8B).
  • the reference pinching portion 21AL of the rolls 21u and 21d is large.
  • the weak clamping unit 21AM of the rolls 21u and 21d is a weak pressure smaller than the reference pressure of the reference clamping unit 21AL. A pair of continuous sheets 11 and 12 and a continuous body 13a of thread-like elastic members are clamped.
  • the intermediate width positioned closer to the end side in the CD direction than the wide strip application area AL while firmly joining the pair of continuous sheets 11 and 12 and the continuous body 13a of the thread-like elastic member temporarily.
  • temporary bonding can be performed more weakly.
  • FIG. 8A is a schematic side view of the temporary joining mechanism 21 provided with the reference clamping portion 21AL and the weak clamping portion 21AM
  • FIG. 8B is a view taken along the line BB in FIG. 8A.
  • the continuous sheets 11 and 12 are shown only at the first nip position Pn1 and the continuous sheets 11 and 12 are not shown in other places in order to prevent complication of the drawing.
  • the main joining mechanism 61 is not shown.
  • an application pattern of the above-mentioned adhesive that is, a stripe pattern, is shown corresponding to the outer peripheral surfaces 21ua and 21da of the rolls 21u and 21d.
  • the portion 21ALP that opposes the wide band-shaped application area AL of the continuous sheet 11 (12) on each of the outer peripheral surfaces 21ua and 21da of the upper roll 21u and the lower roll 21d functions as the reference pinching portion 21AL.
  • the portion 21AMP facing the end side in the CD direction with respect to the portion on the end side in the CD direction with respect to the wide strip-shaped application region AL of the continuous sheet 11 It is made to function as part 21AM.
  • the portion 21ALP that functions as the reference pinching portion 21AL in the upper roll 21u and the lower roll 21d is referred to as a “reference pinching portion responsible portion 21ALP”, and is similarly weakly pinched in the upper roll 21u and the lower roll 21d.
  • the part that functions as the part 21AM is referred to as a “weak pinching part responsible part 21AMP”.
  • the upper roll 21u and the lower roll 21d will be described in detail with reference to FIGS. 8A and 8B.
  • the material of the outer peripheral portions 21uaa and 21daa is the same over the entire area in the CD direction in which the continuous sheets 11 and 12 are in contact, so that the outer peripheral portions 21uaa,
  • the elastic modulus (N / m 2 ) of 21 daa is a substantially constant value over the entire area in the CD direction where the continuous sheets 11 and 12 are in contact.
  • the lower roll 21d is a flat roll having a substantially constant outer diameter over the entire area in the CD direction where the continuous sheets 11 and 12 are in contact.
  • the upper roll 21u has a position in the CD direction. Rolls having different outer diameter dimensions are used.
  • the outer diameter dimension of the weak clamping part responsible part 21AMP is set smaller than the outer diameter dimension of the reference clamping part responsible part 21ALP.
  • the continuous sheet 11 is pressed. , 12
  • the portion on the end side in the CD direction with respect to the wide band-shaped application region AL can be clamped with a weak pressure smaller than the reference pressure.
  • the wide-band application region AL the above-mentioned intermediate-width band belonging to the end side portion is obtained while the pair of continuous sheets 11 and 12 and the continuous body 13a of the thread-like elastic member are temporarily joined more firmly.
  • the pair of continuous sheets 11 and 12 and the continuous body 13a of the thread-like elastic member can be temporarily joined more weakly.
  • the lower roll 21d is a mere flat roll as described above, but the portion of the outer peripheral surface 21da of the lower roll 21d that faces the reference pinching portion responsible portion 21ALP of the upper roll 21u is the lower roll 21d.
  • the reference clamping part responsible portion 21ALP in FIG. The pair of reference clamping unit portions 21ALP and 21ALP cooperate with each other to function as the reference clamping unit 21AL described above.
  • a portion of the outer peripheral surface 21da of the lower roll 21d that faces the weak clamping unit responsible portion 21AMP of the upper roll 21u is a weak clamping unit responsible portion 21AMP of the lower roll 21d.
  • a pair of these weak clamping part charge parts 21AMP and 21AMP mutually cooperate, and it functions as the above-mentioned weak clamping part 21AM.
  • the temporary joining mechanism 21 includes at least a reference clamping part responsible part 21ALP and a weak clamping part responsible part 21AMP, and in some cases, three parts including a central part responsible part 21ASP described later.
  • the pressure of the temporary bonding mechanism 21 in that case, that is, the pressure for temporary bonding is, for example, applied to the continuous sheets 11 and 12 by the temporary bonding mechanism 21. This is the average value of the applied pressure in the CD direction (width direction), and this is also the case with the main joining mechanism 61.
  • the pressure for main bonding when the pressure at the time of pinching of the main bonding mechanism 61 differs according to the position in the CD direction is, for example, the pressure applied to the continuous sheets 11 and 12 by the main bonding mechanism 61.
  • the average value in the CD direction width direction.
  • the outer diameter dimension of the weak clamping part responsible portion 21AMP is set smaller than the outer diameter dimension of the reference clamping part responsible part 21ALP in the upper roll 21u, and thereby the lower roll 21d Used a flat roll, but this is not a limitation.
  • the distance between the reference clamping unit responsible portion 21ALP of the upper roll 21u and the reference clamping unit responsible portion 21ALP of the lower roll 21d is such that the weak clamping unit responsible portion 21AMP and the lower roll 21d of the upper roll 21u are weakly sandwiched. Any configuration other than that described above may be used as long as it is smaller than the interval between the pressing portion responsible portion 21AMP.
  • the outer diameter dimension of the weak clamping part responsible portion 21AMP is set smaller than the outer diameter dimension of the reference clamping part responsible part 21ALP, thereby using a flat roll for the upper roll 21u.
  • the outer diameter dimensions of the weak pinching portion responsible portions 21AMP and 21AMP may be made larger than the outer diameter size of the reference pinching portion responsible portions 21ALP and 21ALP for both the upper roll 21u and the lower roll 21d. You may set small.
  • the portion 21ASP between the pair of reference pinching portion responsible portions 21ALP and 21ALP in the outer peripheral surface 21ua of the upper roll 21u (hereinafter, central portion responsible portion 21ASP) has been described in detail. There was no ( Figure 8B). Therefore, here, the central portion responsible portion 21ASP will be described.
  • the central portion responsible portion 21ASP clamps the portions 11c and 12c located on the central side of the continuous sheets 11 and 12 with respect to the wide band-shaped application area AL. That is, in the continuous sheets 11 and 12, the portions 11c and 12c in which the narrow strip-shaped application area AS and the narrow strip-shaped non-application areas ANS are alternately arranged are pinched.
  • the outer diameter dimension of the central portion responsible portion 21ASP is an arbitrary value between the outer diameter size of the reference clamping portion responsible portion 21ALP and the outer diameter dimension of the weak clamping portion responsible portion 21AMP (for example, the reference clamping portion). It is set to an intermediate value between the outer diameter dimension of the pressure part responsible portion 21ALP and the outer diameter dimension of the weakly pinched pressure portion responsible portion 21AMP).
  • an appropriate pressure is ensured at the time of pinching even in the central portion in charge portion 21 ASP while preventing the pinching at a large reference pressure to be performed in the adjacent reference pinching portion portion in charge 21ALP.
  • the outer diameter size of the center portion responsible portion 21ASP is not limited to the above.
  • the outer diameter of the central portion responsible portion 21ASP may be the same diameter as the outer diameter dimension of the reference clamping part portion 21ALP or may be larger than the outer diameter dimension.
  • the outer diameter of the central portion responsible portion 21ASP may be the same as the outer diameter size of the weak clamping portion responsible portion 21AMP, or may be smaller than the same outer diameter size.
  • the adhesive in the wide band-shaped application area AL of the continuous sheets 11 and 12 that is clamped by the reference clamping unit responsible portion 21ALP is surely used as a joint for joining the thread-like elastic member 13 to the continuous sheets 11 and 12. From the viewpoint of functioning, it is desirable that the outer diameter size of the reference pinching portion responsible portion 21ALP is larger than the outer diameter size of the central portion responsible portion 21ASP.
  • the wide band-shaped application area AL should function as a joint for bonding the thread-like elastic member 13 to the continuous sheets 11 and 12 as described above.
  • the width direction is wider than the wide band-shaped application area AL.
  • the end side portion is a portion to which the end portion 13e of the thread-like elastic member 13 is to be retracted and accommodated. Therefore, as described above, it is desirable that the bonding of the wide band-shaped application region AL is strong, while the bonding of the end-side part is desirably fragile.
  • an intermediate width strip-shaped non-coating region ANM, an intermediate width strip-shaped coating region AM, and a wide strip-shaped non-coating region ANL are present at the end in the width direction from the wide strip-shaped coating region AL. (Fig. 7). Therefore, the application amount of the adhesive per unit area of this end side portion is obtained by dividing the application amount of the intermediate band application region AM by the area of these three parties ANM, AM, ANL, It is much smaller than the wide band-shaped application area AL that should function as the joint.
  • the portion to be pulled in the end portion 13e of the thread-like elastic member 13 that is the end side portion from the joined portion can be in a fragile joined state, This can effectively contribute to reliably joining the thread-like elastic member 13 to the continuous sheets 11 and 12 while increasing the capacity of the end portion 13e of the thread-like elastic member 13.
  • FIG. 9A is a schematic side view of the temporary joining mechanism 21 provided with the reference clamping part 21AL and the weak clamping part 21AM
  • FIG. 9B is a view taken along the line BB in FIG. 9A.
  • the continuous sheets 11 and 12 are shown only at the first nip position Pn1 and the continuous sheets 11 and 12 are not shown in other places in order to prevent complication of the drawing.
  • the main joining mechanism 61 is not shown.
  • an application pattern of the above-described adhesive that is, a stripe pattern, is shown corresponding to the outer peripheral surfaces 21ua and 21da of the rolls 21u and 21d.
  • flat rolls are used for both the pair of upper and lower rolls 21u and 21d.
  • the outer diameter dimensions of the outer peripheral surfaces 21ua and 21da of the rolls 21u and 21d are equal to each other at least in the entire area in the CD direction where the continuous sheets 11 and 12 are in contact.
  • a roll having a substantially constant elastic modulus (N / m 2 ) of the outer peripheral portion 21daa is used over the entire area in the CD direction where the continuous sheets 11 and 12 are in contact with each other.
  • rolls having different elastic moduli of the outer peripheral portion 21uaa are used depending on the position in the CD direction.
  • the elastic modulus of the weak holding part responsible portion 21AMP in the on roll 21u (N / m 2) is set smaller than the elastic modulus of the reference holding part their part 21ALP (N / m 2).
  • the amount of elastic compression deformation of the outer peripheral portion 21uaa of the reference pinching portion responsible portion 21ALP of the upper roll 21u at the first nip position Pn1 (the outer peripheral portion 21uaa of the reference pinching portion responsible portion 21ALP is The amount of elastic dent deformation) is smaller than the amount of elastic compression deformation of the outer peripheral portion 21uaa of the weak clamping part responsible portion 21AMP (the amount by which the outer peripheral portion 21uaa of the weak clamping part responsible portion 21AMP elastically dents and deforms).
  • the reference clamping part responsible portion 21ALP can function as the reference clamping part 21AL
  • the weak clamping part responsible portion 21AMP can function as the weak clamping part 21AM.
  • the reference clamping part responsible portion 21ALP is clamped with a large reference pressure in the wide belt-shaped application area AL of the continuous sheets 11 and 12, while the weak clamping part responsible portion 21AMP is the continuous sheet 11. , 12, the portion on the end side of the wide band application area AL can be clamped with a weak pressure smaller than the reference pressure.
  • the pair of continuous sheets 11 and 12 and the continuous body 13a of the thread-like elastic member are temporarily joined more weakly.
  • the end portions 13e and 13e of the individual thread-like elastic members 13 are quickly squeezed by their contraction force. Are accommodated in the continuous sheets 11 and 12.
  • an appropriate metal material such as steel can be exemplified.
  • a material that can be used for the weak clamping part responsible portion 21AMP is more elastic than the metal material.
  • a rubber material or a sponge-like resin member having a low rate can be exemplified, but the present invention is not limited thereto.
  • a roll having a substantially constant elastic modulus (N / m 2 ) is used over the entire area in the CD direction where the continuous sheets 11 and 12 are in contact.
  • the portion facing the reference pinching part responsible portion 21ALP of the upper roll 21u becomes the reference pinching portion responsible portion 21ALP for the lower roll 21d.
  • the pair of reference pinching portion responsible portions 21ALP and 21ALP cooperate with each other to function as the reference pinching portion 21AL.
  • a portion of the outer peripheral surface 21da of the lower roll 21d that faces the weak clamping unit responsible portion 21AMP of the upper roll 21u is a weak clamping unit responsible portion 21AMP of the lower roll 21d.
  • the pair of weak pinching part responsible portions 21AMP and 21AMP cooperate with each other to function as the weak pinching part 21AM.
  • the upper roll 21u is set so that the elastic modulus of the weak clamping part responsible portion 21AMP is smaller than the elastic modulus of the reference clamping part responsible part 21ALP.
  • the roll whose elastic modulus of the portion 21daa is substantially constant over substantially the entire area in the CD direction is not limited to this. That is, the added value of the amount of elastic dent deformation (elastic compression deformation amount) of both the reference pinching portion responsible portion 21ALP of the upper roll 21u and the reference pinching portion responsible portion 21ALP of the lower roll 21d at the time of pinching is the same pinching pressure.
  • both the weak clamping part responsible portion 21AMP of the upper roll 21u and the weak clamping part responsible portion 21AMP of the lower roll 21d are smaller than the added value of the amount of elastic dent deformation (elastic compression deformation amount)
  • Other configurations may be used.
  • the elastic modulus of the weak pinching portion responsible portion 21AMP is set smaller than the elastic modulus of the reference pinching portion responsible portion 21ALP, so that the upper roll 21u has the outer peripheral portion 21uaa A roll whose elastic modulus is substantially constant over substantially the entire area in the CD direction may be used.
  • the elastic modulus of the reference pressing part responsible portion 21ALP Alternatively, the elastic modulus of the weak clamping portion 21AMP may be set small.
  • the elastic portion of the central portion portion 21 ASP that is the portion 21 ASP between the pair of reference pinching portion portions 21 ALP and 21 ALP is given as the elastic modulus of the reference pinching portion portion 21 ALP.
  • an arbitrary value between the elastic modulus and the elastic modulus of the weak clamping portion responsible portion 21AMP is doing.
  • the elastic modulus of the center portion responsible portion 21ASP is not limited to the above.
  • it may be the same value as the elastic modulus of the reference clamping portion 21ALP or may be larger than the elastic modulus.
  • the elastic modulus of the central portion responsible portion 21ASP may be equal to or smaller than the elastic modulus of the weak clamping portion responsible portion 21AMP.
  • the elastic modulus of the reference clamping part responsible portion 21ALP may be larger than the elastic modulus of the portion responsible portion 21ASP.
  • the temporary joining mechanism 21 is illustrated as having a pair of upper and lower rolls 21u and 21d, but is not limited thereto. That is, any other configuration may be used as long as the pair of continuous sheets 11 and 12 can be superimposed and pinched while being transported and temporarily joined.
  • a configuration having a pair of upper and lower endless belts (not shown) that respectively circulate around the drive may be used. In this case, the pair of endless belts sandwich the pair of continuous sheets 11 and 12 with a temporary bonding pressure.
  • the configuration having the conveyance roll 62 and the pinching roll 66 as the main joining mechanism 61 is exemplified, but the present invention is not limited thereto. That is, other configurations may be used as long as the pair of continuous sheets 11 and 12 can be superimposed and pinched while being transported and finally joined.
  • a configuration having a pair of upper and lower endless belts (not shown) that respectively circulate around the drive may be used. In this case, the pair of endless belts sandwich the pair of continuous sheets 11 and 12 with the main joining pressure.
  • the pinching roll 66 of the main joining mechanism 61 cooperates with the transporting roll 62 arranged to face the upper roll 21u, so that the pair of continuous sheets 11 and 12 are subjected to the main joining pressure.
  • the pinching roll 66 of the main joining mechanism 61 is disposed downstream of the first nip position Pn1 in the rotational direction Dcu while facing the upper roll 21u. Then, the pair of continuous sheets 11 and 12 may be clamped with the pressure for main joining in cooperation with the outer peripheral surface 21ua of the upper roll 21u.
  • the transport roll 62 shown in FIG. 10 can be omitted.
  • the conveyance mechanism 31 of the continuous body 13a of the thread-like elastic member has a pair of belt-like conveyance portions 32 and 32, and each belt-like conveyance portion 32 has a pair of upper and lower endless belts 33u and 33d.
  • it is not limited to this. That is, as long as the continuous body 13 a of the thread-like elastic member is wound by the winding mechanism 41 and the wound continuous body 13 a can be transported toward the temporary joining mechanism 21, other configurations are possible. good.
  • a screw-like conveyance unit may be used instead of the belt-like conveyance unit 32.
  • the screw-shaped transport unit has a pair of upper and lower round bar-shaped shaft members, and a spiral groove is formed on the outer peripheral surface of each round bar-shaped shaft member over substantially the entire length.
  • a conveyance mechanism may be comprised by arrange
  • the continuous body 13a of the thread-like elastic member is engaged with the spiral groove on the outer peripheral surface of the round bar-shaped shaft member, and the round bar-shaped shaft member is kept in the axial center while substantially maintaining this engaged state.
  • the continuous body 13a of the thread-like elastic member wound around the pair of screw-like conveyance portions is conveyed in the conveyance direction.
  • the intermediate width band-shaped application area AM is provided on the end side in the width direction from the wide width band-shaped application area AL of the end portion 11 e (12 e) of the continuous sheet 11 (12).
  • the intermediate width band-shaped application region AM since it was necessary to seal the edges 11ee and 12ee, the intermediate width band-shaped application region AM was provided, but there is no need to seal the edges 11ee and 12ee. In this case, the intermediate width band-shaped application area AM may not be provided. And if the intermediate width strip-shaped application region AM is eliminated in this way, the accommodation of the end portions 13e, 13e of the thread-like elastic member 13 into the continuous sheets 11, 12 can be further enhanced.

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Abstract

La présente invention concerne un dispositif de production de feuille extensible qui produit une feuille extensible (10) présentant des éléments élastiques filiformes individuels (13) à l'état allongé, interposés et liés entre deux feuilles continues (11, 12), dans un état tel que lesdits éléments élastiques filiformes (13) sont disposés le long d'une direction d'intersection qui coupe la direction de suite des feuilles continues (11, 12). Le dispositif de production de feuille extensible comprend : un mécanisme de liaison provisoire (21) qui alimente les deux feuilles continues (11, 12) le long d'une direction de suite des feuilles continues (11, 12), et serre et lie provisoirement les feuilles continues (11, 12) dans le sens de leur épaisseur, à une pression de liaison provisoire ; un mécanisme de transport (31) qui transporte un corps continu (13a) d'éléments élastiques filiformes vers l'espace entre les deux feuilles continues (11, 12) serrées et provisoirement liées par le mécanisme de liaison provisoire (21) ; un mécanisme d'enroulement (41) qui alimente le corps continu (13a) d'éléments élastiques filiformes et l'enroule, à l'état allongé, sur le mécanisme de transport (31) ; un mécanisme de découpe (51) qui, après le serrage des deux feuilles continues (11, 12) par le mécanisme de liaison provisoire (21), découpe le corps continu (13a) d'éléments élastiques filiformes à une position plus loin du côté terminal dans la direction d'intersection que les feuilles continues (11, 12), et produit des éléments élastiques filiformes (13, 13, …) ; et un mécanisme de liaison principal (61) qui, après découpe du corps continu (13a) d'éléments élastiques filiformes, lie correctement les deux feuilles continues (11, 12), dans le sens de l'épaisseur et à une pression de liaison principale qui est supérieure à la pression de liaison provisoire.
PCT/JP2013/083928 2012-12-28 2013-12-18 Dispositif de production de feuille extensible et procédé de production WO2014103840A1 (fr)

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CN105496648A (zh) * 2015-11-30 2016-04-20 安徽悦美卫生用品有限公司 内切成型装置
JP6454664B2 (ja) * 2016-08-19 2019-01-16 大王製紙株式会社 伸縮シートの製造方法
JP7017905B2 (ja) * 2017-10-23 2022-02-09 花王株式会社 吸収体の製造方法及び製造装置

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JP2009153841A (ja) * 2007-12-27 2009-07-16 Kao Corp パンツ型吸収性物品
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KR101023133B1 (ko) * 2009-03-19 2011-03-18 삼성모바일디스플레이주식회사 유기 발광 표시 장치
JP5366677B2 (ja) * 2009-06-23 2013-12-11 ユニ・チャーム株式会社 吸収性物品に係るシートの製造方法、及び製造装置
WO2012057030A1 (fr) * 2010-10-28 2012-05-03 花王株式会社 Procédé de fabrication de feuille élastique
JP5624868B2 (ja) * 2010-12-10 2014-11-12 花王株式会社 吸収性物品の製造方法

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JPH09253130A (ja) * 1996-03-19 1997-09-30 Kao Corp 使い捨ておむつ
JP2004229857A (ja) * 2003-01-30 2004-08-19 Oji Paper Co Ltd 伸縮弾性部材の製造方法
JP2009153841A (ja) * 2007-12-27 2009-07-16 Kao Corp パンツ型吸収性物品
JP2010022550A (ja) * 2008-07-18 2010-02-04 Daio Paper Corp テープ式使い捨ておむつ及びその製造方法
JP2010022587A (ja) * 2008-07-18 2010-02-04 Daio Paper Corp テープ式使い捨ておむつ
JP2012125313A (ja) * 2010-12-14 2012-07-05 Kao Corp 使い捨ておむつ及びその製造方法
JP2012217763A (ja) * 2011-04-13 2012-11-12 Kao Corp 伸縮性シートの製造方法
JP5390679B2 (ja) * 2011-10-24 2014-01-15 花王株式会社 伸縮性シートの製造方法

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