WO2019069880A1 - 吸収体の製造方法及び吸収体の製造装置 - Google Patents

吸収体の製造方法及び吸収体の製造装置 Download PDF

Info

Publication number
WO2019069880A1
WO2019069880A1 PCT/JP2018/036767 JP2018036767W WO2019069880A1 WO 2019069880 A1 WO2019069880 A1 WO 2019069880A1 JP 2018036767 W JP2018036767 W JP 2018036767W WO 2019069880 A1 WO2019069880 A1 WO 2019069880A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent core
sheet
absorbent
roller
covering
Prior art date
Application number
PCT/JP2018/036767
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
松永　竜二
拓明 原田
知之 茂木
優喜 加藤
岩佐　博之
Original Assignee
花王株式会社
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 花王株式会社 filed Critical 花王株式会社
Priority to CN201880059579.5A priority Critical patent/CN111093576B/zh
Publication of WO2019069880A1 publication Critical patent/WO2019069880A1/ja

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium

Definitions

  • the present invention relates to a method of manufacturing an absorber and a manufacturing apparatus of the absorber.
  • an absorber used for absorbent articles such as a disposable diaper, a sanitary napkin, and an incontinence pad
  • an absorber including, for example, pulp fibers and synthetic fibers is known.
  • a method for producing an absorbent containing pulp fibers and synthetic fibers for example, Patent Document 1 is known.
  • Patent Document 1 describes an absorbent article in which a non-woven fabric having a three-dimensional structure in which fibers are bonded in advance is formed, and then the non-woven fabric is crushed to form non-woven fabric pieces, and the non-woven fabric pieces are mixed with hydrophilic fibers. A method of making the absorber is described. Further, Patent Document 1 describes that a cutter mill method is adopted as a means for crushing a non-woven fabric.
  • the applicant of the present invention while conveying the coated sheet on which the absorbent core is placed, the folding portion of the extended portion laterally extended from each side edge of the absorbent core is folded back
  • the step of covering the absorbent core by folding the sheet by absorbing by the cover sheet by making the suction in the area before the cover sheet covering higher than the suction in the downstream area in the cover sheet covering area A technique has been proposed in which the core is easily covered (Patent Document 2).
  • JP 2002-301105 A JP, 2016-097172, A
  • the present invention relates to a method of producing an absorber.
  • the present invention comprises a core forming step of collecting a plurality of sheet pieces containing synthetic fibers to form an absorbent core.
  • the absorbent core formed in the core forming step is placed on one surface of a band-like covering sheet being conveyed, and the both sides along the conveying direction of the covering sheet are folded back.
  • the covering process which forms the continuum of the absorber which the both sides along the said conveyance direction of an absorptive core covered at least.
  • the covering step before the both sides of the covering sheet are folded back, or while the both sides of the covering sheet are folded to cover the absorbent core, the thickness of the absorbent core is maintained. And suppressing the increase in thickness of the absorbent core.
  • the present invention also relates to an apparatus for manufacturing an absorber.
  • the present invention comprises a core forming portion which collects a plurality of sheet pieces containing synthetic fibers to form an absorbent core.
  • the absorbent core formed by the core forming portion is placed on one surface of a belt-like covering sheet being conveyed, and the both sides along the conveying direction of the covering sheet are folded back.
  • the absorbent core is provided with a covering portion which forms a continuum of the absorbent which is at least covered by the both sides along the transport direction of the absorbent core.
  • the covering portion comprises means for maintaining the thickness of the absorbent core before folding back both sides of the covering sheet or while folding the both sides of the covering sheet to cover the absorbent core. There is.
  • FIG. 1 is a cross-sectional view of a longitudinal central portion of an absorbent according to a preferred embodiment produced by the method for producing an absorbent according to the present invention.
  • FIG. 2 is a schematic perspective view showing a preferred embodiment of a manufacturing apparatus for manufacturing the absorber shown in FIG.
  • FIG. 3 is a schematic side view of the manufacturing apparatus shown in FIG. 2 as viewed from the side.
  • FIG. 4 is an enlarged side view of a supply unit provided in the manufacturing apparatus shown in FIG. Fig.5 (a) is a schematic plan view which shows the pressing part and folding part with which the manufacturing apparatus shown in FIG. 2 is equipped,
  • FIG.5 (b) is coat
  • FIG. 6 is a schematic side view schematically showing another embodiment of the core forming portion provided in the manufacturing apparatus shown in FIG.
  • FIG. 7 is a schematic side view of a core forming portion of another embodiment of the absorbent body manufacturing apparatus of the present invention.
  • FIG. 8 is a schematic cross-sectional view of a longitudinal central portion of another embodiment of an absorbent body manufactured by the method for manufacturing an absorbent body according to the present invention.
  • Patent Document 1 When a non-woven fabric piece is used for the absorbent body as in the method for producing an absorbent body described in Patent Document 1, the present inventors use the coating sheet to coat an absorbent core having a non-woven fabric piece containing synthetic fibers. It has been found that non-woven fabric pieces containing synthetic fibers have high compression recovery, and the thickness of the absorbent core tends to be thick due to the non-woven fabric pieces, making it difficult to stably coat the absorbent core with a covering sheet. Patent Document 1 does not describe or suggest at all about stably covering an absorbent core having a non-woven fabric piece containing synthetic fibers with a covering sheet.
  • patent document 2 coat covers the absorptive sheet in the shape where the existence width of the formation material of an absorptive core differs with a coating sheet with a covering sheet, suppressing the wrinkles which arises in this coating sheet is described, but absorption There is no description or suggestion regarding the problems and the means for solving the problems that occur when using non-woven fabric pieces as the material of the sex core.
  • the present invention relates to a method and an apparatus for manufacturing an absorber capable of stably covering an absorbent core including a sheet piece with a cover sheet.
  • the production method of the present invention is a production method of an absorbent.
  • the absorbent produced in the present invention is preferably used as an absorbent for an absorbent article.
  • An absorbent article is mainly used to absorb and hold body fluids excreted from the body such as urine and menstrual blood.
  • Absorbent articles include, but are not limited to, for example, disposable diapers, sanitary napkins, incontinence pads, panty liners, etc., and widely include articles used for absorbing fluid discharged from the human body. Do.
  • the absorbent article typically comprises a liquid-permeable top sheet, a liquid-impermeable or water-repellent back sheet, and a liquid-retaining absorbent interposed between the two sheets.
  • the said absorber is an absorber formed by the manufacturing method of the absorber of this invention.
  • FIG. 1 shows a cross-sectional view of a central portion in the longitudinal direction of the absorbent 100 according to an embodiment manufactured by the method of manufacturing the absorbent according to the present embodiment.
  • Absorbent body 100 contains synthetic fiber 10b.
  • the absorbent body 100 includes an absorbent core 100 a including not only the synthetic fiber 10 b but also the hydrophilic fiber 10 a and the absorbent particle 10 c.
  • “including the synthetic fiber 10b” means having the sheet piece 10bh containing the synthetic fiber 10b.
  • the absorbent body 100 may be a single layer or a plurality of layers as long as it includes the synthetic fiber 10b, but in the present embodiment, the hydrophilic fiber 10a, the synthetic fiber 10b and the absorbent particle 10c are dispersed and distributed
  • the absorbent core 100a has a single-layered structure.
  • the absorbent core 100a is a component of the absorber 100, and the absorber 100 is formed by covering the absorbent core 100a with a single covering sheet 100b.
  • the absorbent body 100 has a longitudinally long shape corresponding to the front-rear direction of the wearer when the absorbent article is worn.
  • the covering sheet 100b covers the entire skin-facing surface of the absorbent core 100a and extends outward in the lateral direction X from both side portions aR and aL along the longitudinal direction Y of the absorbent core 100a.
  • the extended side portions bR and bL are rolled up above the absorbent core 100a to cover the entire non-skin facing surface of the absorbent core 100a.
  • the absorbent core 100a includes a plurality of sheet pieces 10bh (hereinafter, also simply referred to as sheet pieces 10bh) including the synthetic fibers 10b, and each sheet piece 10bh has a substantially rectangular shape.
  • the average length of each sheet piece 10bh is preferably 0.3 mm or more and 30 mm or less, more preferably 1 mm or more and 15 mm or less, and particularly preferably 2 mm or more and 10 mm or less.
  • the average length indicates the average value of the lengths of the sides in the longitudinal direction when each sheet piece 10bh has a rectangular shape.
  • each sheet piece 10bh has a square shape, the average value of the length of any one side of the four sides is shown.
  • the average width of each sheet piece 10bh is preferably 0.1 mm or more and 10 mm or less, more preferably 0.3 mm or more and 6 mm or less, and particularly preferably 0.5 mm or more and 5 mm or less.
  • the average width indicates the average value of the lengths of the sides in the short direction when each sheet piece 10bh has a rectangular shape.
  • each sheet piece 10bh has a square shape
  • the average value of the length of any one side of the four sides is shown.
  • the average width of the sheet piece 10bh is 0.1 mm or more, it is easy to form a sparse structure in the absorber 100, and when it is 10 mm or less, it is difficult for the wearer to feel discomfort due to the absorber 100. It is hard to produce nonuniformity in absorption performance by the position in 100.
  • the various things conventionally used for the absorber for absorbent articles can be used without a restriction
  • the hydrophilic fibers 10a include pulp fibers, rayon fibers, cotton fibers and the like.
  • the synthetic fiber 10 b include short fibers such as polyethylene, polypropylene and polyethylene terephthalate.
  • the sheet piece 10bh is not particularly limited as long as it has a sheet shape, but a non-woven fabric is preferable.
  • the absorbent particle 10c is also included in the constituent members constituting the absorber 100.
  • Examples of the absorbent particles 10c include starch-based, cellulose-based, synthetic polymer-based, and superabsorbent polymer-based ones.
  • As the superabsorbent polymer for example, those comprising starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, cross-linked product of sodium carboxymethyl cellulose, acrylic acid (salt) polymer, etc. It can be used.
  • Examples of the covering sheet 100 b include fibrous sheets such as tissue paper and liquid-permeable nonwoven fabric.
  • a deodorizer, an antibacterial agent, etc. can also be used if needed.
  • Examples of the covering sheet 100 b include tissue paper and liquid-permeable nonwoven fabric.
  • FIGS. 2 and 3 show the overall configuration of the manufacturing apparatus 1 of one embodiment used to carry out the manufacturing method of the present embodiment. Before describing the method of manufacturing the absorbent body 100, the manufacturing apparatus 1 will be described first.
  • the manufacturing apparatus 1 for manufacturing the absorber 100 includes a core forming portion 10A forming the absorbent core 100a and a covering portion 10B forming the continuum 100r of the absorber. There is.
  • the direction in which the belt-like synthetic fiber sheet 10bs including the synthetic fiber 10b and the absorbent 100 are conveyed is the Y direction, the direction orthogonal to the conveying direction, and the width direction of the synthetic fiber sheet 10bs and the absorbent 100 conveyed.
  • Is the X direction, and the thickness direction of the conveyed synthetic fiber sheet 10bs and the absorber 100 is the Z direction.
  • the first direction described later is a direction extending in the transport direction Y, and means a direction in which the angle formed with the transport direction Y is less than 45 degrees.
  • the first direction coincides with the direction parallel to the transport direction Y.
  • the 2nd direction mentioned later is a direction which cross
  • the second direction is a direction orthogonal to the first direction, and coincides with a direction parallel to the width direction X of the synthetic fiber sheet 10bs to be conveyed and the absorber 100.
  • the core forming portion 10A is to form the absorbent core 100a by accumulating a plurality of sheet pieces 10bh formed by cutting a band-like synthetic fiber sheet 10bs including the synthetic fiber 10b.
  • the core forming unit 10A transports the raw material of the absorbent core 100a by putting the raw material of the absorbent core 100a on the air flow to carry out the defibrillation unit 2 for defibrillating the hydrophilic sheet 10as including the hydrophilic fiber 10a It is disposed adjacent to the duct 3 as the transport part, the supply part 5 for supplying the sheet piece 10bh to the inside of the duct 3 from the middle of the duct 3, and the downstream side of the duct 3 and collects the raw materials of the absorbent core 100a.
  • the rotary drum 4 has an accumulation portion, and the pressing belt 7 disposed along the outer peripheral surface 4 f opposite to the duct 3 of the rotary drum 4.
  • An accumulation recess 41 which is an example of the accumulation portion, is disposed on the outer peripheral surface 4 f of the rotating drum 4.
  • the defibrating unit 2 includes, as shown in FIGS. 2 and 3, a defibrator 21 that defibrates the hydrophilic sheet 10 as, and a casing 22 that covers the upper side of the defibrator 21.
  • the defibrating unit 2 is a portion that supplies the disintegrated hydrophilic fiber 10 a that is a raw material of the absorber 100 to the inside of the duct 3.
  • the defibrating unit 2 also has a pair of feed rollers (not shown) for supplying the hydrophilic sheet 10as to the defibrating machine 21.
  • the duct 3 extends from the defibrating unit 2 to the rotary drum 4, and the opening on the downstream side of the duct 3 is a space A of the rotary drum 4 maintained at a negative pressure. It covers the outer circumferential surface 4f located on
  • the duct 3 has a top plate 31 forming a top surface, a bottom plate 32 forming a bottom surface, and both side walls 33 and 34 forming both side surfaces.
  • the absorber 100 is directed toward the outer peripheral surface 4f of the rotary drum 4. Air flow is made to flow the raw materials of
  • an absorbent particle scattering pipe 36 for supplying the absorbent particles 10 c into the duct 3 is disposed on the top plate 31 of the duct 3, as shown in FIGS. 2 and 3, an absorbent particle scattering pipe 36 for supplying the absorbent particles 10 c into the duct 3 is disposed.
  • the absorbent particles 10 c are discharged from the dispersion port provided at the tip of the absorbent particle dispersion tube 36 via a device such as a screw feeder (not shown), and supplied to the inside of the duct 3. It is supposed to be The amount of the absorbent particles 10c supplied to the absorbent particle scattering tube 36 can be adjusted by an apparatus such as each screw feeder.
  • the supply unit 5 cuts the belt-like synthetic fiber sheet 10bs including the synthetic fiber 10b in a first direction (Y direction) and a second direction (X direction) at a predetermined length. It has cutter blades 51 and 52 which form the sheet piece 10bh.
  • the supply unit 5 has a suction nozzle 58 for suctioning a sheet piece 10bh formed using the cutter blades 51 and 52 on the downstream side of the cutter blades 51 and 52 in the conveyance direction of the synthetic fiber sheet 10bs.
  • the supply unit 5 includes a first cutter roller 53 having a plurality of cutter blades 51 for cutting in a first direction, and a second cutter roller 54 having a plurality of cutter blades 52 for cutting in a second direction. doing.
  • the supply unit 5 includes one receiving roller 55 disposed to face the first cutter roller 53 and the second cutter roller 54.
  • the first cutter roller 53 On the surface of the first cutter roller 53, as shown in FIG. 4, a plurality of continuously extending over the entire outer circumference of the first cutter roller 53 along the circumferential direction of the first cutter roller 53.
  • the cutter blades 51, 51, 51,... Are arranged in the axial direction (X direction) of the first cutter roller 53.
  • the first cutter roller 53 is adapted to rotate in the direction of arrow R3 in response to power from a motor such as a motor.
  • the width of the sheet piece 10bh formed by cutting (the length in the short direction, the length in the X direction) Generally correspond to the More precisely, the synthetic fiber sheet 10bs is cut in a state of being shrunk in the width direction X depending on the tension at the time of sheet conveyance, so that the tension is released in the finished sheet piece 10bh.
  • the width of the sheet piece 10bh may be wider than the interval between the blades 51, 51, 51,.
  • a plurality of cutter blades extending continuously along the axial direction of the second cutter roller 54 and over the entire width of the second cutter roller 54. 52, 52, 52,... Are spaced in the circumferential direction of the second cutter roller 54.
  • the second cutter roller 54 receives power from a motor such as a motor and rotates in the direction of arrow R4.
  • the receiving roller 55 is a flat roller whose surface is flat as shown in FIG.
  • the receiving roller 55 receives power from a motor such as a motor and rotates in the direction of the arrow R5.
  • the supply unit 5 is disposed between the receiving roller 55 and the first cutter roller 53 in the direction opposite to the receiving roller 55 from the upstream side to the downstream side in the rotation direction (arrow R5 direction).
  • the sheet strip continuum 10bh1 has a nip roller 57 for introducing between the receiving roller 55 and the second cutter roller 54, and a second cutter roller 54 for cutting the sheet strip continuum 10bh1 in the second direction.
  • the supply unit 5 has a feed roller (not shown) for conveying the belt-like synthetic fiber sheet 10 bs, and the feed roller is a belt-like composite between the receiving roller 55 and the first cutter roller 53. Introduce the fiber sheet 10bs.
  • the feed roller is configured to be rotated by a drive device such as a servomotor, for example. From the viewpoint of preventing the slip of the synthetic fiber sheet 10bs, the feed roller is made less slippery by forming a groove extending in the axial direction on its surface over the entire circumference or applying a coating treatment for improving the frictional force over the entire circumference. May be It may be difficult to slip by nipping between the nip roller and the feed roller.
  • the supply unit 5 has a suction nozzle 58 for suctioning the sheet piece 10bh formed by the second cutter roller 54.
  • the suction nozzle 58 has its suction port 581 located below the second cutter roller 54, that is, the rotation direction of the second cutter roller 54 relative to the closest point of contact between the second cutter roller 54 and the receiving roller 55 (arrow R4 Direction) is located downstream. Further, the suction nozzle 58 has its suction port 581 extending over the entire width of the second cutter roller 54.
  • the suction roller 581 of the receiving roller 55 and the second cutter roller 54 is arranged such that the suction port 581 of the suction nozzle 58 faces between the receiving roller 55 and the second cutter roller 54. It is preferable to arrange below. Then, from the viewpoint of further improving suction performance of the sheet piece 10bh, the suction port 581 of the suction nozzle 58 views the receiving roller 55 and the second cutter roller 54 from the side as shown in FIG. It is preferable to cover the outer surface of the second cutter roller 54 so that the arc length of the suction port 581 facing the second cutter roller 54 is longer than the arc length of the suction port 581 facing the.
  • the suction nozzle 58 is connected to the top plate 31 side of the duct 3 via a suction pipe 59.
  • the sheet piece 10 bh sucked from the suction port 581 of the suction nozzle 58 is supplied to the inside of the duct 3 from the middle of the duct 3 via the suction pipe 59.
  • the connecting position of the suction pipe 59 and the duct 3 is located between the defibrating unit 2 side and the rotary drum 4 side in the duct 3, and is located downstream of the absorbent particle scattering pipe 36 in the duct 3. ing.
  • the connection position of the suction pipe 59 and the duct 3 is not limited to this.
  • the connection position between the suction pipe 59 and the duct 3 may not be the top plate 31 side of the duct 3 but the bottom plate 32 side.
  • the rotary drum 4 has a cylindrical shape, and has a member 40 forming the outer peripheral surface 4f, and a fixed drum main body 42 positioned inside the member 40. .
  • the member 40 forming the outer peripheral surface 4f receives power from a motor or the like and rotates about the horizontal axis in the direction of the arrow R1.
  • the member 40 forming the outer peripheral surface 4 f has an accumulation recess 41 as an accumulation portion for accumulating the raw materials of the absorber 100 to obtain the absorbent core 100 a.
  • the accumulation recess 41 is continuously disposed all around the circumferential direction (2Y direction) of the rotary drum 4.
  • the bottom surface of the accumulation recess 41 is made of a porous member that functions as a suction hole for sucking the raw material of the absorber 100.
  • the drum body 42 internally has a plurality of mutually independent spaces, and the pressure of each space is adjusted by the drive of an intake fan (not shown) connected to the rotary drum 4.
  • the manufacturing apparatus 1 has three spaces A to C, and the suction force of the region corresponding to the space A can be made stronger or weaker than the suction force of the region corresponding to the spaces B to C.
  • the space A is maintained at a negative pressure.
  • the presser belt 7 is disposed along the outer peripheral surface 4 f adjacent to the downstream side of the position of the duct 3 and located in the space B of the rotating drum 4.
  • the space B is set to a negative pressure or pressure zero (atmospheric pressure) weaker than the space A of the rotary drum 4.
  • the presser belt 7 is an endless air-permeable or non-air-permeable belt, and is stretched over the rollers 71 and 72 so as to rotate along with the rotation of the rotary drum 4.
  • the pressing belt 7 can hold the absorbent core 100 a in the accumulation recess 41 in the accumulation recess 41 until the absorbent core 100 a is transferred onto the vacuum conveyor 8.
  • the covering portion 10B places the absorbent core 100a formed by the core forming portion on one surface of the band-like covering sheet 100b being conveyed, and folds back both sides along the conveying direction of the covering sheet 100b.
  • the absorbent core 100a forms a continuous body 100r of the absorbent body in which both side portions along the transport direction of the absorbent core 100a are at least covered. As shown in FIGS.
  • the absorbent core continuum 100f includes, in addition to the absorbent core 100a continuously disposed on the covering sheet 100b, a plurality of absorbent cores intermittently disposed on the covering sheet 100b.
  • the first vacuum conveyor 8a is disposed below the rotary drum 4 and is positioned in the space C where the weak positive pressure or pressure (zero atmospheric pressure) of the rotary drum 4 is set. It is distribute
  • the first vacuum conveyor 8a is disposed in the space C of the rotary drum 4 with the first air-permeable belt 83a in an endless shape spanned by the first drive roller 81a and the first driven roller 82a, and the first air-permeable belt 83a. It has a first vacuum box 84a disposed at a position facing the outer circumferential surface 4f located.
  • the covering sheet 100b is introduced onto the first vacuum conveyor 8a, and the covering sheet 100b is conveyed by rotating the first breathable belt 83a.
  • the means 200 for maintaining the thickness of the continuous body 100f of the absorbent core has the pressing portion 210 on one side of the covering sheet 100b on which the continuous body 100f of absorbent core is placed. doing. And the means 200 for maintaining the thickness has the second vacuum conveyor 8b as a suction part disposed on the other side of the covering sheet 100b opposite to the one side on which the continuous body 100f of the absorbent core is placed. doing. Between the first vacuum conveyor 8a and the second vacuum conveyor 8b, a conveyor 8c for conveying the covering sheet 100b on which the continuum 100f of the absorbent core is placed is disposed.
  • the conveyor 8c has a drive roller 81c and a driven roller 82c, and an endless conveyance belt 83c which is stretched over the drive roller 81c and the driven roller 82c.
  • the pressing unit 210 is disposed straddling the conveyor 8c and an upstream portion 84u described later of the second vacuum conveyor 8b along the conveyance direction of the continuous body 100f of the absorbent core. There is.
  • the pressing portion 210 is positioned on the upstream side of the conveyer 8 c in the transport direction. Further, the downstream side of the pressing direction of the pressing unit 210 is located above the upstream portion 84 u of the second vacuum conveyor 8 b, and the feeding direction of the pressing unit 210 is higher than the upstream end 220 t of a pair of folding guides 221 R and 221 L described later. It extends to the downstream side.
  • the pressing unit 210 includes a plurality of rollers and an endless belt 214 stretched over the plurality of rollers. More specifically, the pressing unit 210 includes a driving roller 211, a first roller 212a located on the downstream side in the transport direction Y, a second roller 212b located on the upstream side in the transport direction Y, and these rollers 211, 212a, It has an endless belt 214 stretched over 212 b and a tension roller 213 disposed outside the endless belt 214. The first roller 212a and the second roller 212b are driven rollers.
  • intermediate rollers 212c and 212d are disposed between the first roller 212a and the second roller 212b in a region for pressing the endless belt 214 against the continuum 100f of the absorbent core. That is, the area from the rotation direction upstream side of the endless belt 214 to the second roller 212b, the intermediate rollers 212c and 212d, and the first roller 212a as viewed from the upstream side presses the absorbent core 100a from above toward the covering sheet 100b. It becomes a pressing surface of the endless belt 214 to be attached.
  • the first roller 212a positioned on the most downstream side in the transport direction is the upstream side tip 220t of a pair of folding guides 221R and 221L described later that configure the folding section 220 in plan view. It is disposed downstream of the position P1 in the transport direction of the absorbent core 100a.
  • the first roller 212a is disposed between the pair of folding guides 221R and 221L.
  • the upstream end 220t is positioned on the downstream side of the position P1 of the upstream end 220t in plan view
  • the end edge of the first roller 212a on the downstream side in the delivery direction is the position P1 of the upstream end 220t. Also mean that they are located downstream in the transport direction.
  • the first roller 212a has a center of rotation axis of the first roller 212a at the upstream end 220t of the pair of folding guides 221R and 221L.
  • the entire first roller 212a is located downstream of the position P1 of the upstream end 220t of the pair of folding guides 221R and 221L in the transport direction. Is more preferable.
  • the position P1 of the upstream end 220t of each of the pair of folding guides 221R and 221L coincides with the transport direction, but the position P1 of the upstream end 220t of each of the folding guides 221R and 221L is temporarily From the viewpoint of suppressing the thickness of the absorbent core 100a from being increased when shifted in the transport direction, the edge of the first roller 212a is higher than the position of the upstream tip 220t located on the upstream side. It is preferable to be located downstream in the transport direction, and more preferable to be located downstream than the position of the other upstream tip 220t located downstream. Further, the first roller 212a is positioned downstream in the transport direction from a position L (see FIG. 6) at which the transport direction of the coated sheet 100b before transport direction change and the transport sheet 100b after transport direction change changes. It is preferable to do.
  • the first roller 212a is provided with a height adjustment mechanism (not shown) capable of adjusting the height in the thickness direction Z of the continuous body 100f of the absorbent core.
  • a height adjustment mechanism capable of adjusting the height in the thickness direction Z of the continuous body 100f of the absorbent core.
  • the second roller 212b located most upstream in the transport direction is disposed at a position facing the drive roller 81c on the upstream side of the conveyor 8c.
  • the driving roller 211 is located between the first roller 212a and the second roller 212b.
  • the tension roller 213 presses the endless belt 214 from the outside toward the inner side of the endless belt 214 to adjust the tension of the endless belt 214.
  • the second roller 212b is provided with a height adjusting mechanism (not shown) capable of adjusting the height in the thickness direction Z of the continuous body 100f of the absorbent core.
  • a height adjusting mechanism capable of adjusting the height in the thickness direction Z of the continuous body 100f of the absorbent core.
  • the clearance in the thickness direction Z between the first roller 212a and the second vacuum conveyor 8b is equal to the thickness direction Z between the second roller 212b and the conveyor 8c. It is preferable to adjust the height in the thickness direction of the first roller 212a and the second roller 212b so as to be narrower than the clearance of By doing so, it can be effectively suppressed that the thickness of continuum 100r of an absorptive core becomes thick.
  • Ribs are provided on both sides of the endless belt 214 in the conveyance direction Y.
  • the endless belt 214 may be provided with a meandering suppression mechanism that suppresses the meandering of the endless belt 214.
  • the second vacuum conveyor 8b conveys the continuum 100f of the absorbent core placed on one surface of the covering sheet 100b while sucking the continuum 100f of the covering sheet 100b. It is designed to suppress the increase in thickness.
  • the second vacuum conveyor 8b as shown in FIGS. 2 and 3, includes an endless second breathable belt 83b stretched over the second drive roller 81b and the second driven roller 82b, and an endless second breathable belt. , And a second tension roller 85b disposed outside the second breathable belt 83b.
  • the second driven roller 82b positioned most downstream in the transport direction is positioned more downstream in the transport direction than the folded portion 220.
  • the second vacuum box 84b has an upstream portion 84u located upstream of the absorbent core 100a in the transport direction, and a downstream portion 84d located downstream of the absorbent core 100a in the transport direction.
  • the upstream portion 84 u and the downstream portion 84 d are connected with a predetermined inclination.
  • the covering sheet 100b on which the absorbent core 100a is placed is conveyed substantially in the horizontal direction.
  • the transport direction changes so as to incline vertically downward with respect to the horizontal direction.
  • the transport direction of the cover sheet 100b at the downstream portion 84d changes so as to be inclined toward the vertically lower side with respect to the transport direction of the cover sheet 100b at the upstream portion 84u.
  • the inclination referred to here means that, as shown in FIG. 6, the position L at which the transport direction of the cover sheet 100b before the transport direction change and the transport sheet 100b after the transport direction change is orthogonal to the transport direction. It is an angular relationship such that these intersect. (Refer to FIG. 6) is preferably in the range of 135 degrees to 175 degrees, and more preferably in the range of 140 degrees to 170 degrees.
  • the pressing portion 210 is disposed above the upstream portion 84 u in the thickness direction of the continuous body 100 f of the absorbent core.
  • a folded-back portion 220 which will be described later, is disposed above the downstream portion 84d in the thickness direction of the absorbent core 100a.
  • the second tension roller 85b presses the second breathable belt 83b from the outside toward the inner side of the second breathable belt 83b to adjust the tension of the second breathable belt 83b.
  • the second vacuum conveyor 8b is provided with a suction adjustment mechanism capable of adjusting the suction force for suctioning the continuous body 100f of the absorbent core placed on the covering sheet 100b.
  • a suction adjustment mechanism capable of adjusting the suction force for suctioning the continuous body 100f of the absorbent core placed on the covering sheet 100b.
  • the suction adjustment mechanism has a function of changing the frequency of the suction blower.
  • the folded back portion 220 folds back both sides bR, bL along the transport direction of the covering sheet 100 b introduced onto the second vacuum conveyor 8 b in the width direction to form the absorbent core 100 a. It covers at least a part.
  • the folding portion 220 has a pair of folding guides 221R and 221L.
  • the pair of folding guides 221R and 221L are respectively disposed on both sides along the conveyance direction of the absorbent core 100a.
  • the pair of folding guides 221R and 221L are formed of flat plate members including a triangular portion in plan view, and are substantially parallel to the transport direction of the absorbent core 100a. Are arranged.
  • the inner edge 223 near the center in the width direction is inclined inward in the width direction with respect to the direction parallel to the transport direction.
  • the inner edge 223 has a straight shape.
  • the outer edge 224 has a linear shape parallel to the direction along the transport direction. Therefore, the width of the folding guides 221R and 221L extending inward in the width direction gradually increases from the upstream side to the downstream side in the transport direction.
  • the position P1 of the upstream side front end 220t of the front end of the pair of folding guides 221R and 221L substantially coincides with the position L of the covering sheet 100b shown in FIG. 6, or is disposed downstream in the transport direction.
  • a turn roll 230 is disposed downstream of the covering portion 10B.
  • the turn roll 230 changes the transport direction of the continuous body 100r of the absorbent in a state where the absorbent core 100a is covered with the covering sheet 100b.
  • the turn roll 230 is configured to rotate in the direction of arrow R shown in FIG. 3 in response to power from a motor such as a motor.
  • the manufacturing apparatus 1 is equipped with the cutting device (not shown) downstream rather than the turn roll 230, and manufactures each absorber 100 from the continuous body 100r of an absorber using this cutting device.
  • the cutting device for example, in the production of absorbent articles such as sanitary napkins, light incontinence pads, panty liners, diapers, etc., those conventionally used for cutting absorbent continuous bodies may be used without particular limitations. it can.
  • a cutting device for example, a cutter roller provided with a cutting blade on a pair of peripheral surfaces and an anvil roller having a smooth peripheral surface for receiving the cutting blade can be mentioned.
  • the method of manufacturing the absorbent according to the present embodiment includes a core forming step of forming the absorbent core 100a and a covering step of forming the continuous body 100r of the absorbent. More preferably, the absorbent body manufacturing method of the present embodiment includes a disintegrating step of disintegrating the belt-like hydrophilic sheet 10 as using the fibrillation machine 21 to obtain the hydrophilic fiber 10 a, and a belt-like shape including the synthetic fiber 10 b.
  • a plurality of sheet pieces 10bh and hydrophilic fibers 10a are accumulated in the accumulation recess 41 which is an accumulation portion, and the core forming step of forming the absorbent core 100a is provided.
  • the manufacturing method of the absorber 100 of this embodiment is explained in full detail.
  • an intake fan (not shown) connected to the space A in the rotary drum 4, the first vacuum box 84a for the first vacuum conveyor 8a, and the second vacuum box 84b for the second vacuum conveyor 8b. Turn on to create negative pressure.
  • an air flow for conveying the raw material of the absorber 100 to the outer peripheral surface 4 f of the rotating drum 4 is generated in the duct 3.
  • the defibrator 21 and the rotary drum 4 are rotated, and the first cutter roller 53, the second cutter roller 54 and the receiving roller 55 are rotated, and the pressing belt 7, the first vacuum conveyor 8a and the second vacuum conveyor 8b are Activate.
  • the hydrophilic fiber 10 a which is a disintegrated fiber material, is supplied from the disintegration device 21 to the duct 3.
  • the pair of feed rollers is configured to control the supply speed of the hydrophilic sheet 10as to the fibrillating machine 21.
  • the supply of the hydrophilic sheet 10 as to the disintegration device 21 is performed in a controlled manner.
  • a first cutter roller 53 provided with a cutter blade 51 for cutting the belt-like synthetic fiber sheet 10bs in a first direction, and cutting in a second direction
  • a cutting process is performed to form a sheet piece 10bh by cutting using a second cutter roller 54 provided with a cutter blade 52.
  • a first cutter roller 53 for cutting the band-like synthetic fiber sheet 10bs in a first direction, a second cutter roller 54 for cutting in a second direction, and one receiving roller 55 are used.
  • a belt-like synthetic fiber sheet 10bs is introduced between the first cutter roller 53 and the receiving roller 55, and cut in the first direction to form a plurality of continuous sheet pieces 10bh1.
  • the formed sheet piece continuous body 10bh1 is conveyed by the receiving roller 55 and cut in the second direction between the second cutter roller 54 and the receiving roller 55 to form the sheet piece 10bh.
  • the cutting step will be specifically described.
  • the belt-like synthetic fiber sheet 10bs is conveyed using the above-described feed roller (not shown).
  • the feed roller is configured to control the transport speed of the belt-like synthetic fiber sheet 10bs.
  • the conveyance speed of the belt-like synthetic fiber sheet 10bs is controlled.
  • the belt-like synthetic fiber sheet 10bs conveyed by the feed roller is rotated through the free roller 56 in the direction of arrow R3 and the receiving roller 55 which rotates in the direction of arrow R5.
  • a band-like synthetic fiber sheet 10bs is introduced between the first cutter roller 53 and a plurality of cutter blades 51, 51, 51,... Cut into By cutting in this manner, a plurality of sheet piece continuous members 10bh1 extending in the first direction juxtaposed in the second direction are formed.
  • the widths (lengths in the second direction) of the plurality of continuous sheet fragments 10bh1 are equal to one another.
  • the average width of the continuous sheet piece 10bh1 formed in the cutting step is preferably 0.1 mm or more and 10 mm or less from the viewpoint of securing dimensions necessary for the sheet piece 10bh to exhibit a predetermined effect, etc.
  • the diameter is more preferably 0.3 mm or more and 6 mm or less, and particularly preferably 0.5 mm or more and 5 mm or less.
  • the width of the continuous sheet piece 10bh1 cut by the first cutter roller 53 corresponds to the length of the short side of the finally formed sheet piece 10bh.
  • the width of the continuous sheet piece 10bh1 cut by the first cutter roller 53 may be cut so as to correspond to the length of the longitudinal side of the finally formed sheet piece 10bh.
  • the average width of the continuous sheet piece 10bh1 cut by the first cutter roller 53 is preferably 0.3 mm or more and 30 mm or less, more preferably 1 mm or more and 15 mm or less, and 2 mm or more It is particularly preferable that the diameter is 10 mm or less.
  • the formed plurality of continuous sheet fragments 10bh1 are conveyed on the circumferential surface of the receiving roller 55 rotating in the direction of the arrow R5, and are conveyed between the receiving roller 55 and the nip roller 57. Then, it is introduced between the receiving roller 55 and the second cutter roller 54 through the nip roller 57.
  • a plurality of sheet piece continuum 10bh1 extending in one direction are introduced.
  • the plurality of sheet piece continuous bodies 10bh1 are intermittently cut in the first direction in the second direction by the plurality of cutter blades 52, 52, 52,.
  • a plurality of rectangular sheet pieces 10bh whose length in the first direction is longer than the length in the second direction are formed.
  • the lengths in the first direction of the plurality of rectangular sheet pieces 10bh are equal to one another.
  • the average length of the sheet piece 10bh formed in the cutting step is preferably 0.3 mm or more and 30 mm or less, from the viewpoint of securing dimensions necessary for the sheet piece 10bh to exhibit a predetermined effect, and is 1 mm
  • the diameter is more preferably 15 mm or less, and particularly preferably 2 mm to 10 mm.
  • the length of the sheet piece 10bh cut by the second cutter roller 54 corresponds to the length of the side in the longitudinal direction of the sheet piece 10bh.
  • the length of the sheet piece 10bh cut by the second cutter roller 54 may be cut so as to correspond to the length of the side of the sheet piece 10bh in the short direction.
  • the length (width) of the sheet piece 10bh cut by the cutter roller 54 is preferably 0.1 mm or more and 10 mm or less, more preferably 0.3 mm or more and 6 mm or less, and more preferably 0.5 mm or more and 5 mm It is particularly preferred that
  • the band-like synthetic fiber sheet 10bs is cut in the first direction and cut in the second direction with a predetermined length cut to obtain the sheet piece 10bh, so the size of the sheet piece 10bh obtained It is easy to adjust to the intended size, and to manufacture a large number of sheet pieces 10bh of the same size with high accuracy. As described above, since the sheet piece 10bh of the intended size can be formed with high accuracy, it is possible to efficiently and continuously manufacture an absorbent body having a target absorption performance.
  • a suction step of suctioning the sheet piece 10bh obtained by cutting with the cutter rollers 53 and 54 and supplying it inside the duct 3 is performed.
  • the suction nozzle is located below the second cutter roller 54, that is, on the downstream side of the second cutter roller 54 in the rotational direction (arrow R4 direction) of the closest point of contact between the second cutter roller 54 and the receiving roller 55.
  • the sheet piece 10bh suctioned in the suction step is carried on the air flow, and carried to the stacking recess 41 on the outer peripheral surface 4f of the rotary drum 4.
  • the plurality of sheet pieces 10bh are supplied from the top plate 31 side of the duct 3 to the inside of the duct 3 at a position midway in the transport direction Y of the duct 3 and supplied.
  • the sheet piece 10bh is put on the air flow and conveyed to the accumulation recess 41 of the rotary drum 4 in a scattered state.
  • the hydrophilic fibers 10a previously obtained in the defibration step are supplied into the duct 3, and the plurality of sheet pieces 10bh sucked in the suction step are supplied into the duct 3 from the middle of the duct 3. It is done. Therefore, the sheet piece 10bh is conveyed by being carried in the air flow while the hydrophilic fiber 10a is carried in the air flow and is being conveyed to the accumulation recess 41 in the scattering state, so that the sheet piece 10bh and the hydrophilic The sheet piece 10bh and the hydrophilic fiber 10a are mixed while conveying the elastic fiber 10a in an air flow and in a scattering state.
  • the absorbent particles 10c are supplied using the absorbent particle scattering tube 36, and the sheet piece 10bh and the absorbent particles 10c obtained in the cutting step are placed on the air stream to form the concave portions 41 for accumulation.
  • the sheet piece 10bh and the absorbent particle 10c are mixed while being transported to the In the transport step, since the position of the absorbent particle scattering tube 36 is located on the upstream side of the connection position of the suction tube 59 and the duct 3, the absorbent particles 10 c are carried on the air flow to form the concave portion 41 for accumulation.
  • the sheet piece 10bh, the hydrophilic fiber 10a and the absorbent particle 10c are mixed while being transported in the scattering state.
  • the absorbency which is a raw material of an absorbent body in which the sheet piece 10bh, the hydrophilic fibers 10a and the absorbent particles 10c are accumulated in a dispersed state in the thickness direction in the accumulation recess 41 of the rotary drum 4
  • the core 100a is formed.
  • the absorbent core 100 a formed in the accumulation recess 41 is continuously manufactured over the entire circumference of the rotary drum 4 in the circumferential direction 2 ⁇ / b> Y.
  • the rotary drum 4 is further rotated.
  • the absorbent core continuum 100f in the accumulation recess 41 is conveyed by the pressing belt 7 disposed on the outer peripheral surface 4f located in the space B of the rotating drum 4 onto the first vacuum conveyor 8a.
  • the continuum 100 f of the absorbent core formed in the core forming step comes to the opposing position of the first vacuum box 84 a located in the space C of the rotary drum 4, as shown in FIGS. 2 and 3,
  • the absorbent core continuum 100f is released from the accumulation recess 41 by suction from the vacuum box 84a.
  • the continuum 100f of the absorbent core extending continuously along the transport direction is placed.
  • the continuum 100f of the absorbent core placed on one surface of the covering sheet 100b is conveyed to the maintaining means 200 using the first vacuum conveyor 8a.
  • both side portions bR and bL along the transport direction of the strip-like covering sheet 100b on which the continuous body 100f of the absorbent core is placed are folded back, and both sides aR and aL along the transport direction of the absorbent core 100a.
  • a continuum 100r of the absorber In the covering step, as shown in FIG. 5 (b), using one folding guide 221R of the folding part 220, one side bR of the covering sheet 100b is made one side of the continuum 100f of the absorbent core Fold back to cover aR.
  • the other side bL of the covering sheet 100b is folded back so as to cover the other side aL of the absorbent core continuous body 100f.
  • the other side bL of the covering sheet 100b is folded back so as to cover the other side aL of the absorbent core continuous body 100f.
  • the means for maintaining the thickness of the body 100f is used to suppress the thickening of the continuous body 100f of the absorbent core. More specifically, in the covering step, first, a continuous body 100 f of the absorbent core placed on the covering sheet 100 b introduced between the conveyance direction upstream side of the pressing portion 210 and the conveyor 8 c is Using the pressing surface of the endless belt 214 and the mounting surface of the conveyor belt 83c of the conveyor 8c, the sheet is conveyed while being pressed against the covering sheet 100b.
  • the pressing surface of the endless belt 214 of the pressing unit 210 and the mounting surface of the transport belt 83c of the conveyor 8c travel at the same speed in the same direction. Therefore, it can be transported toward between the pressing unit 210 and the second vacuum conveyor 8b while maintaining the state where the continuous body 100f of the absorbent core is pressed against the covering sheet 100b.
  • the continuum 100f of the absorbent core is conveyed while being pressed against the coated sheet 100b before the both sides bR and bL of the coated sheet 100b are folded back in the coating step, the continuum of the absorbent core is reduced.
  • Thickening of the thickness of the body 100 f can be suppressed, and an absorbent continuous body 100 r in which the continuous body 100 f of the absorbent core is covered with the covering sheet 100 b using the folded portion 220 can be efficiently manufactured. it can.
  • the continuous body 100f of the absorbent core is placed on one surface of the covering sheet 100b, and then the covering sheet 100b is folded by the pair of folding guides 221R and 221L. It means the time until the covering sheet 100b contacts the upper surface side of the both sides bR and bL of the continuous body 100f of the absorbent core shown in FIG. .
  • “to suppress the increase in thickness” means that the thickness of the continuous core 100f of the absorbent core is preferably equal to or less than the inner dimension in the thickness direction of the pair of folding guides 221R and 221L. .
  • the pressing surface of the endless belt 214 of the pressing unit 210 and the mounting surface of the second air-permeable belt 83b of the second vacuum conveyor 8b travel at the same speed in the same direction.
  • the first roller 212a of the pressing unit 210 is disposed further downstream in the transport direction than the upstream end 220t of the pair of folding guides 221R and 221L, and the pair of folding guides 221R. , 221 L are arranged. Therefore, it is possible to maintain the state in which the continuum 100f of the absorbent core is pressed against the covering sheet 100b immediately before the both sides bR and bL of the covering sheet 100b are folded back.
  • “immediately before folding back” is the time when the side portions bR and bL of the cover sheet 100b begin to be folded by the pair of folding guides 221R and 221L, that is, the upstream ends of the pair of folding guides 221R and 221L shown in FIG.
  • the absorbent core continuous body 100f is pressed while being conveyed until immediately before folding back the both sides bR and bL of the covering sheet 100b, so that the thickness of the absorbent core continuous body 100f is increased.
  • the absorbent core continuum 100f can be stably covered with the cover sheet 100b using the folded portion 220, and the absorbent continuum 100r can be manufactured more efficiently. be able to.
  • the clearance in the thickness direction Z between the first roller 212a and the second vacuum conveyor 8b is equal to the thickness direction Z between the second roller 212b and the conveyor 8c. Adjusting the height in the thickness direction Z of the first roller 212a and the second roller 212b so as to be narrower than the clearance, pressing the continuum 100f of the absorbent core against the covering sheet 100b with the endless belt 214 It is preferable to carry. This can further suppress the increase in the thickness of the continuous body 100f of the absorbent core, and therefore, stably covering the continuous body 100f of the absorbent core with the covering sheet 100b using the folded portion 220. And the continuum of absorbent 100r can be manufactured more efficiently.
  • the pressing portion 210 and the pressing portion 210 are separated from the pressing of the continuous body 100f of the absorbent core against the covering sheet 100b by the pressing portion 210 and the second vacuum conveyor 8b using the upstream portion 84u of the second vacuum box 84b.
  • the absorbent core continuum 100f introduced between the second vacuum conveyor 8b is conveyed while being suctioned through the covering sheet 100b.
  • the suction by the upstream portion 84u of the second vacuum box 84b is performed until immediately before the both sides bR and bL of the covering sheet 100b are folded back, so that the thickness of the continuum 100f of the absorbent core can be further suppressed.
  • the continuous sheet 100b of the absorbent core can stably cover the continuous body 100f of the absorbent core using the folded portion 220, and the continuous body 100r of the absorbent can be manufactured more efficiently.
  • suction adjustment mechanism provided in the second vacuum conveyor 8b, suction is performed while adjusting the suction force to suction the continuum 100f of the absorbent core placed on the covering sheet 100b to adjust the capacity of the absorbent core. It is preferable to suppress the increase in thickness of the continuous body 100 f.
  • the absorbent core continuum 100f is conveyed while being sucked.
  • the absorbent core continuous body 100f is suctioned and transported while covering the absorbent core continuous body 100f, the increase in the thickness of the absorbent core continuous body 100f can be further suppressed.
  • the continuous sheet 100b of the absorbent core can stably cover the continuous body 100f of the absorbent core using the folded portion 220, and the continuous body 100r of the absorbent can be formed more efficiently.
  • both sides bR and bL of the covering sheet 100b are folded back to cover the continuous body 100f of the absorbent core
  • both sides bR and bL of the covering sheet 100b are folded by the pair of folding guides 221R and 221L. It means from the position P1 which is the starting time point to the position P3 of the folding completion of the both sides bR and bL of the covering sheet 100b shown in FIG. 5 (b).
  • suction is performed while adjusting the suction force for suctioning the continuous body 100f of the absorbent core using the suction adjustment mechanism, thereby suppressing the increase in thickness of the continuous body 100f of the absorbent core. preferable.
  • the continuous body 100r of the absorber is conveyed in a state of being in contact with the circumferential surface of the turn roll 230.
  • the absorbent core 100 a in the continuous body 100 r is conveyed by the turn roll 230 while the absorbent core 100 a is compressed by the covering sheet 100 b located on the opposite side to the circumferential surface.
  • the holding angle ⁇ 1 of the continuous body 100r of the absorber with respect to the turn roll 230 is preferably 90 degrees or more, more preferably 120 degrees or more, and preferably 240 degrees or less.
  • the band-like absorbers 100 are cut at predetermined intervals in the transport direction by a cutting device (not shown) to manufacture individual absorbers 100.
  • the absorbent 100 thus produced as shown in FIG. 1, the sheet piece 10bh of the intended size, the hydrophilic fiber 10a and the absorbent particle 10c are uniformly mixed and accumulated almost all over, and the covering sheet 100b is obtained. And an absorbent core 100a coated with Therefore, it is difficult to give the wearer a sense of discomfort due to the absorber 100, and the position within the absorber 100 hardly causes unevenness in the absorption performance.
  • the basis weight of each of both sides along the conveyance direction of the continuous body 100f of the absorbent core is the continuous continuous absorbent core It is preferred to form a continuum 100f of absorbent core which is lower than the basis weight of the central portion sandwiched between the two sides of the body 100f.
  • the basis weight of each side of the absorbent core continuum 100f may be adjusted, for example, by shortening the length in the width direction of the suction pipe 59 supplying the sheet piece 10bh, or by adjusting the suction pipe 59 to the top plate 31 of the duct 3. It can be changed a little by adjusting the connection position to the downstream side.
  • the ratio of the basis weight of each of both sides along the conveyance direction of the absorbent core continuum 100f to the basis weight of the central portion sandwiched by the both sides is In order to facilitate coating of the continuous body 100f of the absorbent core with the covering sheet 100b, the thickness is preferably 0.1 or more, more preferably 0.3 or more, and preferably 0.95 or less. And 0.9 or less is more preferable, 0.1 or more and 0.95 or less is preferable, and 0.3 or more and 0.9 or less is more preferable.
  • each side in the width direction means, for example, a region of one side located at each of both ends of the absorbent core 100a when the absorbent core 100a is virtually divided into four in the width direction,
  • the central part means the remaining area other than the both ends.
  • the basis weight of each side along the transport direction of the absorbent core 100a is preferably 20 g / m 2 or more, more preferably 50 g / m 2 or more, and preferably 600 g / m 2 or less And 300 g / m 2 or less is more preferable, 20 g / m 2 or more and 800 g / m 2 or less is preferable, and 50 g / m 2 or more and 300 g / m 2 or less is more preferable.
  • the basis weight of the central portion of the absorbent core 100a is preferably 50 g / m 2 or more, more preferably 100 g / m 2 or more, and preferably 800 g / m 2 or less, 750 g / m 2
  • the content is more preferably 50 g / m 2 or more and 800 g / m 2 or less, and still more preferably 100 g / m 2 or more and 750 g / m 2 or less.
  • the sheet pieces 10bh accumulated on both sides along the conveyance direction of the continuous body 100f of the absorbent core are lower than the contained mass of the sheet piece 10bh in the central portion sandwiched by the both side portions.
  • the contained mass of the sheet pieces 10bh accumulated on both sides of the continuous 100 f of the absorbent core can be adjusted by the same method as described above.
  • the content of 10 bh / the content of the sheet piece 10 bh at the central portion) is preferably 0.1 or more from the viewpoint of stably covering the continuous body 100 f of the absorbent core with the covering sheet 100 b, 0.2 More preferably, it is 0.99 or less, further preferably 0.95 or less, and preferably 0.1 or more and 0.95 or less, and more preferably 0.2 or more and 0.95 or less. It is more preferable that it is the following.
  • the side portions and the central portion in the width direction are the same as described above.
  • the content of the sheet piece 10bh on each side along the transport direction of the absorbent core 100a is preferably 5% by mass or more, more preferably 10% by mass or more, and 99% by mass or less
  • the content is preferably 95% by mass or less, more preferably 95% by mass or more and 99% by mass or less, and still more preferably 10% by mass or more and 95% by mass or less.
  • the content of the sheet piece 10bh in the central portion of the absorbent core 100a is preferably 10% by mass or more, more preferably 15% by mass or more, and preferably 100% by mass or less, 95% by mass
  • the content is more preferably 10% by mass or more and 100% by mass or less and still more preferably 15% by mass or more and 95% by mass or less.
  • FIG. 7 a part of other embodiment of the manufacturing apparatus 1 shown to FIG. 2 and FIG. 3 is shown typically.
  • FIGS. 2 and 3 differences from the manufacturing apparatus 1 shown in FIGS. 2 and 3 will be described.
  • FIG.2 and FIG.3 The code used for description of the manufacturing apparatus 1 shown in FIG.2 and FIG.3 and the manufacturing method using this manufacturing apparatus 1 The same reference numerals as in FIG.
  • the sheet piece 10bh and the hydrophilic fiber 10a are supplied to the inside of one duct 3 to form the continuum 100f of the absorbent core.
  • the hydrophilic fibers 10a and the sheet pieces 10bh are separately formed using the separate ducts 3A and 3B to manufacture the continuous body 100f of the absorbent core. There is.
  • the core forming portion 10A shown in FIG. 7 includes a hydrophilic fiber layer forming portion 110A that forms a hydrophilic fiber layer and a sheet piece layer forming portion 110B that forms a layer of the sheet piece 10bh.
  • the hydrophilic fiber layer forming unit 110A includes a fibrillating machine 21 for fibrillating the hydrophilic sheet 10as, a first duct 3A for transporting the hydrophilic fiber 10a in an air flow, and the hydrophilic fiber 10a. It has a rotating drum 4 to be accumulated, and a third vacuum conveyor 8A disposed below the rotating drum 4.
  • the sheet piece layer forming unit 110B as shown in FIG.
  • the covering portion 10 ⁇ / b> B described above is disposed on the downstream side of the sheet piece layer forming portion 110 ⁇ / b> B in the conveyance direction Y.
  • the first duct 3A has the same configuration as the duct 3 except that the suction pipe 59 for supplying the sheet piece 10bh is not connected to the top plate 31 of the duct 3.
  • the second duct 3B has an opening on the upstream side disposed downstream of the second cutter roller 54 and the receiving roller 55, and extends over the entire width of the second cutter roller 54.
  • the third vacuum conveyor 8A and the fourth vacuum conveyor 8B have the same configuration as the first vacuum conveyor 8a.
  • a belt-like hydrophilic sheet 10as supplied from a raw fabric roll 10af is supplied to a fibrillating machine 21 and fibrillated to obtain a hydrophilic fiber 10a.
  • a hydrophilic fiber 10a supplied from a raw fabric roll 10af is supplied to a fibrillating machine 21 and fibrillated to obtain a hydrophilic fiber 10a.
  • an air flow flowing in the first duct 3A is generated.
  • the hydrophilic fibers 10a are accumulated on the covering sheet 100b using the generated air flow, to form a hydrophilic accumulation layer consisting of only the hydrophilic fibers 10a.
  • the strip-like synthetic fiber sheet 10bs supplied from the raw fabric roll 10bf is cut using the first cutter roller 53 and the second cutter roller 54 to form a sheet piece 10bh.
  • Negative pressure is generated in the vacuum box 84 of the fourth vacuum conveyor 8B to generate an air flow flowing in the second duct 3B.
  • the sheet piece 10bh cut in the cutting step is accumulated on the hydrophilic fiber accumulation layer on the covering sheet 100b using the air flow flowing in the second duct 3B. In this way, a continuum 100r of the absorbent core in which the sheet piece accumulation layer is laminated on the hydrophilic fiber accumulation layer is manufactured.
  • the both sides bR and bL along the transport direction of the coated sheet 100b on which the continuum 100r of absorbent core manufactured in this manner is placed are folded back, and both sides along the transport direction of the continuum 100r of the absorbent core
  • a coating step is performed to cover aR and aL to form a continuum 100r of the absorber.
  • the coating step as in the coating step shown in FIG. 2 and FIG. 3, before the both sides bR and bL of the cover sheet 100b are folded back, or both sides bR and bL of the cover sheet 100b are folded to continue the absorbent core While covering the body 100f, means for maintaining the thickness of the absorbent core are used to suppress the thickening of the absorbent core.
  • the absorber 100 having the absorbent core 100a manufactured using the manufacturing apparatus shown in FIG. 7 can exhibit the same effects as those obtained using the manufacturing apparatus 1 shown in FIGS. 2 and 3. .
  • the present invention is not limited to the above embodiment, and can be modified as appropriate.
  • the continuous body 100f of the absorbent core before covering with the covering sheet 100b is directed to the covering sheet 100b using the conveyor 8c and the pressing portion 210.
  • a pair of rolls is used, and one surface of the covering sheet 100b is interposed between the pair of rolls.
  • the absorbent core 100a placed on top may be introduced and compressed to press the absorbent core continuum 100f toward the covering sheet 100b. The same effect can be obtained even when using a pair of rolls.
  • the covering step of the present embodiment pressing by the conveying direction upstream side of the pressing unit 210 and the conveyor 8c, pressing by the second vacuum conveyor 8b and the conveying direction downstream side of the pressing unit 210, and the second vacuum
  • the suction using the upstream portion 84u and the downstream portion 84d of the box 84b prevents the thickness of the absorbent core continuum 100f from increasing in thickness, but any of these can be used to form the absorbent core continuum
  • the increase in thickness of 100 f may be suppressed.
  • the absorbent body 100 to be manufactured is such that both sides bR and bL of the folded cover sheet 100b are polymerized so as to cover both sides aR and aL of the absorbent core 100a. It may be in a state where the end portions abut each other without. Further, as shown in FIG.
  • the side portions bR and bL of the cover sheet 100b1 folded from one surface side to the other surface side of the absorbent core 100a cover the both side portions aR and aL of the absorbent core 100a.
  • the other surface side of the absorbent core 100a may be joined in a state of being superimposed on both side portions bR and bL of the other covering sheet 100b2.
  • the absorbent sheet 100 to be manufactured is a cover sheet folded from one side to the other side of the absorbent core 100a so as to cover both side portions aR and aL of the absorbent core 100a.
  • the two side portions bR and bL of 100b may have the overlapping portions 101 joined in a spiral shape.
  • a known bonding means such as an adhesive or heat seal on a covering sheet 100b directly covering the absorbent core 100a. It does not have to be good or not.
  • the absorptive core 100a contains the sheet piece 10bh, the hydrophilic fiber 10a, and the absorptive particle
  • the absorbent core 100a does not contain the absorbent particle 10c, and may be formed of the sheet piece 10bh and the hydrophilic fiber 10a.
  • the sheet piece 10bh is manufactured by performing the cutting step, but the sheet piece 10bh manufactured in advance may be used, and the sheet piece 10bh manufactured by a method other than the cutter blade may be used. It is also good.
  • a first cutter roller 53 provided with a cutter blade 51 for cutting in a first direction and a cutter blade 52 for cutting in a second direction are provided.
  • the belt-like synthetic fiber sheet 10 bs is formed in the first direction and the first direction by using the two cutter rollers 54 and the one receiving roller 55 disposed to face the first cutter roller 53 and the second cutter roller 54.
  • the sheet piece 10bh is manufactured by cutting in two directions and a predetermined length.
  • the synthetic fiber sheet 10bs may be cut using different receiving rollers disposed opposite to the first cutter roller 53 and the second cutter roller 54 to manufacture the sheet piece 10bh.
  • a first cutter roller 53 provided with a plurality of cutter blades 51 arranged at equal intervals, and a plurality of cutters arranged at equal intervals, respectively.
  • the synthetic fiber sheet 10bs is cut using the second cutter roller 54 provided with the blade 52 to produce sheet pieces 10bh of the same size, but the cutting direction of the sheet pieces 10bh and the shape of the sheet pieces 10bh are
  • the first cutter roller 53 provided with a plurality of cutter blades 51 to have two or more types of intervals or the plurality of cutter blades 52 to have two or more types of intervals
  • the synthetic fiber sheet 10bs may be cut using the second cutter roller 54 to produce a sheet piece 10bh.
  • sheet pieces 10bh of two or more types of sizes can be formed, but unlike the manufacture using a cutter mill method, sheet pieces 10bh of the intended size can be formed with high accuracy.
  • absorbents with targeted absorption performance can be produced efficiently and continuously.
  • the supply unit 5 includes the first cutter roller 53 and the second cutter roller 54, but instead of the two cutter rollers, the first direction ( The cutter blade 51 cutting in the Y direction) and the cutter blade 52 cutting in the second direction (X direction) may have one cutter roller provided on the same circumferential surface.
  • the supply unit 5 includes the one cutter roller, it is preferable that the supply unit 5 includes one receiving roller disposed to face the one cutter roller.
  • the suction port 581 of the suction nozzle 58 is preferably disposed below the one cutter roller.
  • the synthetic fiber sheet 10bs is cut using the first cutter roller 53 and the second cutter roller 54 to manufacture a sheet piece 10bh.
  • a press equipped with a cutter blade 51 that cuts in a first direction (Y direction) without using a cutter roller, and a press equipped with a cutter blade 52 that cuts in a second direction (X direction) The synthetic fiber sheet 10bs may be cut to produce a sheet piece 10bh.
  • the shape of the absorbent core 100a to be manufactured may be flexibly changed by changing the shape of the accumulation recess 41.
  • you may hydrophilize the fiber used for the synthetic fiber 10b.
  • the covering step using a means for maintaining the thickness of the absorbent core before folding the both sides of the covering sheet or while folding the both sides of the covering sheet to cover the absorbent core, The manufacturing method of an absorber which suppresses that the thickness of this absorptive core becomes thick.
  • the means for maintaining is a suction unit disposed on the other side of the cover sheet, and the absorbent core placed on one side of the cover sheet is suctioned by the suction unit via the cover sheet.
  • the manufacturing method of the absorber as described in said ⁇ 1> which suppresses that the thickness of this absorbent core becomes thick by conveying.
  • the suction unit has a suction adjustment mechanism that adjusts suction force, and sucks the absorbent core while adjusting the suction force to suppress the increase in thickness of the absorbent core, ⁇ 2>.
  • the manufacturing method of the absorber as described in.
  • the means for maintaining is a pressing portion for pressing the absorbent core placed on one side of the covering sheet, and is placed on one side of the covering sheet until just before folding back both sides of the covering sheet.
  • the absorbent core according to any one of ⁇ 1> to ⁇ 3>, wherein the absorbent core is conveyed while being pressed toward the covering sheet by the pressing portion to suppress the increase in thickness of the absorbent core.
  • Method of producing an absorbent ⁇ 5>
  • a continuous body of the absorber is formed while conveying the covering sheet by a conveyor, and the pressing unit includes a plurality of rollers and an endless belt stretched over the plurality of rollers.
  • the plurality of rollers have a first roller located on the downstream side in the transport direction and a second roller located on the upstream side in the transport direction, and in the region extending from the second roller to the first roller, the absorbent core
  • the method according to ⁇ 4> wherein the absorbent core is suppressed from being thickened by being conveyed while being pressed toward the covering sheet by the endless belt.
  • the first roller and the second roller have a height adjustment mechanism capable of adjusting the height in the thickness direction of the absorbent core.
  • the absorbent core By adjusting the heights of the first roller and the second roller so that the clearance between the first roller and the conveyor is smaller than the clearance between the second roller and the conveyor, the absorbent core can be obtained
  • the manufacturing method of the absorber as described in said ⁇ 6> which suppresses that the thickness of this absorbent core becomes thick by conveying while pressing toward said coating sheet with said endless belt.
  • the means for maintaining is a pair of rolls, and before folding back both sides of the covering sheet, the absorbent core placed on one side of the covering sheet is introduced and compressed between the pair of rolls.
  • the manufacturing method of the absorber as described in said ⁇ 1> which suppresses that the thickness of this absorptive core becomes thick.
  • the continuous body of the absorber is conveyed in a state in which the continuous body of the absorbent body is in contact with the circumferential surface of a turn roll for changing the conveyance direction of the continuous body.
  • the basis weight of each of both sides along the transport direction of the absorbent core is lower than the basis weight of the central portion sandwiched between the both sides in the absorbent core, to form an absorbent core.
  • the contained mass of the sheet piece of each of the two side parts along the conveyance direction of the absorbent core is greater than the contained mass of the sheet piece of the central part sandwiched by the both sides in the absorbent core.
  • a cutting step of forming a plurality of sheet pieces by cutting a belt-like synthetic fiber sheet containing the synthetic fibers in a first direction and a second direction intersecting the first direction to form a plurality of sheet pieces In the forming step, the method of manufacturing an absorbent according to any one of ⁇ 1> to ⁇ 11>, wherein the plurality of sheet pieces formed in the cutting step are accumulated to form the absorbent core.
  • the belt-like synthetic fiber sheet is cut using a first cutter roller provided with a cutter blade for cutting in the first direction to form a plurality of strip-like continuous sheet pieces;
  • the first direction is a direction in which the band-like synthetic fiber sheet is conveyed in the cutting step
  • the second direction is a direction orthogonal to the first direction, described in ⁇ 12> or ⁇ 13>.
  • the average length of each of the sheet pieces formed in the cutting step is preferably 0.3 mm or more and 30 mm or less, more preferably 1 mm or more and 15 mm or less, and particularly preferably 2 mm or more and 10 mm or less.
  • the average width of each of the sheet pieces formed in the cutting step is preferably 0.1 mm or more and 10 mm or less, more preferably 0.3 mm or more and 6 mm or less, and 0.5 mm or more and 5 mm or less.
  • the method for producing an absorbent according to any one of ⁇ 12> to ⁇ 15>, wherein ⁇ 17> A core forming portion for forming a absorbent core by stacking a plurality of sheet pieces containing synthetic fibers, and the absorbent core formed by the core forming portion are placed on one surface of a belt-like covering sheet being transported.
  • a covering portion forming a continuous body of an absorbent body in which both sides along the conveyance direction of the absorbent core are at least covered by folding the both sides along the conveyance direction of the covering sheet.
  • the covering portion is provided with means for maintaining the thickness of the absorbent core before folding the both sides of the covering sheet or while folding the both sides of the covering sheet to cover the absorbent core.
  • Equipment for manufacturing absorbers ⁇ 18> The apparatus for manufacturing an absorbent body according to ⁇ 17>, wherein the means for maintaining includes a suction unit disposed on the other side of the covering sheet.
  • the suction unit has a suction adjustment mechanism that adjusts a suction force.
  • the means for maintaining includes a pressing portion for pressing the absorbent core from the absorbent core side toward the coating sheet until immediately before folding back both sides of the coating sheet.
  • the manufacturing apparatus of the absorber as described in any one of 19>.
  • the covering portion includes a conveyor, and while the covering sheet is conveyed by the conveyor, a continuous body of the absorber is formed, and the pressing portion includes a plurality of rollers and an endless belt stretched over the plurality of rollers.
  • the plurality of rollers have a first roller located on the downstream side in the transport direction and a second roller located on the upstream side in the transport direction, and in a region extending from the second roller to the first roller,
  • ⁇ 22> The manufacturing apparatus of the absorbent body according to ⁇ 21>, wherein the first roller and the second roller have a height adjustment mechanism capable of adjusting the height in the thickness direction of the absorbent core.
  • the height adjustment mechanism adjusts the heights of the first roller and the second roller so that the clearance between the first roller and the conveyor is narrower than the clearance between the second roller and the conveyor.
  • the manufacturing apparatus of the absorber as described in said ⁇ 22>.
  • ⁇ 24> The manufacturing apparatus of the absorbent body according to any one of ⁇ 21> to ⁇ 23>, wherein ribs are provided on both sides along the conveyance direction of the endless belt.
  • ⁇ 25> The apparatus for manufacturing an absorber according to any one of ⁇ 21> to ⁇ 23>, wherein the pressing portion has a meandering suppression mechanism that suppresses the meandering of the endless belt.
  • ⁇ 26> The absorbent body according to any one of ⁇ 20> to ⁇ 25>, wherein the pressing portion extends further downstream in the transport direction than the tips of the pair of folding guides that fold back both sides of the covering sheet. Production equipment.
  • the means for maintaining includes a pair of rolls before folding back both sides of the covering sheet.
  • the manufacturing apparatus of the absorbent body according to any one of ⁇ 17> to ⁇ 27>, further comprising: a turn roll downstream of the covering portion for changing the conveying direction of the continuous body of the absorbent.
  • the core forming unit includes a transport unit configured to transport the raw material of the absorbent core, an accumulation unit disposed downstream of the transport unit in the transport direction and accumulating the raw materials of the absorbent core, and the transport unit. And a feeding unit for feeding the sheet piece, wherein the feeding unit cuts a belt-like synthetic fiber sheet containing synthetic fibers in a first direction and a second direction intersecting the first direction at a predetermined length.
  • the manufacturing apparatus of the absorbent body according to any one of ⁇ 17> to ⁇ 28>, having a cutter blade forming the sheet piece.
  • the supply unit includes a first cutter roller provided with a cutter blade for cutting in the first direction, and a second cutter roller provided with a cutter blade for cutting in the second direction.
  • the manufacturing apparatus of the absorber as described in 29>.
  • the first direction is a direction in which the band-like synthetic fiber sheet is conveyed in the supply unit
  • the second direction is a direction orthogonal to the first direction, described in ⁇ 29> or ⁇ 30>.
  • Absorbent body manufacturing equipment is a direction in which the band-like synthetic fiber sheet is conveyed in the supply unit.
  • the average length of each of the sheet pieces formed using the cutter blade is preferably 0.3 mm or more and 30 mm or less, more preferably 1 mm or more and 15 mm or less, and 2 mm or more and 10 mm or less.
  • the average width of each of the sheet pieces formed using the cutter blade is preferably 0.1 mm or more and 10 mm or less, more preferably 0.3 mm or more and 6 mm or less, and 0.5 mm or more and 5 mm or less
  • ⁇ 34> The ratio (the basis weight of each side / the basis weight of the central portion) of the basis weight of each side portion along the conveyance direction of the absorbent core to the basis weight of the central portion sandwiched by the both sides is 0.
  • the basis weight of each side along the transport direction of the absorbent core is preferably 20 g / m 2 or more, more preferably 50 g / m 2 or more, and preferably 600 g / m 2 or less
  • 300 g / m 2 or less is more preferable, 20 g / m 2 or more and 800 g / m 2 or less is preferable, and 50 g / m 2 or more and 300 g / m 2 or less is more preferable.
  • the basis weight of the central portion of the absorbent core is preferably 50 g / m 2 or more, more preferably 100 g / m 2 or more, and preferably 800 g / m 2 or less, 750 g / m 2 or less Is more preferably 50 g / m 2 or more and 800 g / m 2 or less, and still more preferably 100 g / m 2 or more and 750 g / m 2 or less.
  • ⁇ 1> to ⁇ 16>, ⁇ 34> The manufacturing method of the absorber as described in any one of ⁇ 35>.
  • a ratio of the contained mass of each of the sheet pieces on both sides along the transport direction of the absorbent core and the contained mass of the sheet piece 10bh in the central portion sandwiched by the both sides be 0.1 or more. Is more preferably 0.2 or more, preferably 0.99 or less, still more preferably 0.95 or less, and more preferably 0.1 or more and 0.95 or less.
  • the content of the sheet piece on each side along the transport direction of the absorbent core is preferably 5% by mass or more, more preferably 10% by mass or more, and preferably 99% by mass or less. It is further preferable that the content is 95% by mass or less, preferably 95% by mass or more and 99% by mass or less, and further preferably 10% by mass or more and 95% by mass or less.
  • 34 The method for producing an absorbent according to any one of 34> to ⁇ 37>.
  • content of the sheet piece in the center part of the said absorptive core is 10 mass% or more, It is still more preferable that it is 15 mass% or more, It is preferable that it is 100 mass% or less, 95 mass% or less Is more preferably 10% by mass to 100% by mass, still more preferably 15% by mass to 95% by mass, and the above ⁇ 1> to ⁇ 16>, ⁇ 34> to ⁇
  • the absorber which covered stably the absorbent core containing a sheet piece with a coating sheet can be manufactured efficiently.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2018/036767 2017-10-03 2018-10-02 吸収体の製造方法及び吸収体の製造装置 WO2019069880A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880059579.5A CN111093576B (zh) 2017-10-03 2018-10-02 吸收体的制造方法和吸收体的制造装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017193881A JP7027103B2 (ja) 2017-10-03 2017-10-03 吸収体の製造方法及び吸収体の製造装置
JP2017-193881 2017-10-03

Publications (1)

Publication Number Publication Date
WO2019069880A1 true WO2019069880A1 (ja) 2019-04-11

Family

ID=65994973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/036767 WO2019069880A1 (ja) 2017-10-03 2018-10-02 吸収体の製造方法及び吸収体の製造装置

Country Status (4)

Country Link
JP (1) JP7027103B2 (zh)
CN (1) CN111093576B (zh)
TW (1) TW201922608A (zh)
WO (1) WO2019069880A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2579945B (en) 2017-10-03 2022-06-22 Kao Corp Method for manufacturing absorbent body and device for manufacturing absorbent body
JP6603830B2 (ja) 2017-10-03 2019-11-06 花王株式会社 吸収体の製造方法
WO2019106731A1 (ja) 2017-11-28 2019-06-06 花王株式会社 吸収体の製造方法及び吸収性物品の製造方法
JP6683795B1 (ja) * 2018-11-14 2020-04-22 花王株式会社 吸収体の製造方法及び製造装置
JP7253977B2 (ja) * 2019-05-21 2023-04-07 花王株式会社 吸収性物品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301105A (ja) * 2001-04-06 2002-10-15 Uni Charm Corp 吸収性物品、吸収性物品用吸収体及びその製造方法
JP3149868U (ja) * 2009-02-05 2009-04-16 マルシン産業株式会社 搬送用ベルト
JP2016097172A (ja) * 2014-11-25 2016-05-30 花王株式会社 吸収体の製造方法
WO2017056715A1 (ja) * 2015-09-30 2017-04-06 大王製紙株式会社 吸収性物品及びその製造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE507809T1 (de) * 2000-12-08 2011-05-15 Daio Seishi Kk Absorptionsmittel, verfahren zu dessen herstellung und das absorptionsmittel umfassender absorbierender gegenstand
US6923926B2 (en) * 2002-01-16 2005-08-02 Paragon Trade Brands, Inc. Method and apparatus for forming tow-based absorbent structures with a single casing sheet
JP5102610B2 (ja) * 2007-12-26 2012-12-19 花王株式会社 不織布の嵩の制御方法
JP5581034B2 (ja) * 2009-10-19 2014-08-27 ユニ・チャーム株式会社 吸収体の製造方法、及び製造装置
JP5702928B2 (ja) * 2009-11-30 2015-04-15 ユニ・チャーム株式会社 吸水性材料の集合体を薄くする方法およびその方法によって得られる厚さの薄い吸水性材料の集合体
JP5677865B2 (ja) * 2011-01-20 2015-02-25 ユニ・チャーム株式会社 吸収体の厚さを薄くする装置、及び方法
JP5792998B2 (ja) * 2011-05-20 2015-10-14 花王株式会社 吸収性物品
KR101894122B1 (ko) * 2011-05-27 2018-08-31 카오카부시키가이샤 흡수성 물품
CN202724136U (zh) * 2012-06-28 2013-02-13 尤妮佳股份有限公司 吸收体的制造装置
CN202724125U (zh) * 2012-06-29 2013-02-13 尤妮佳股份有限公司 吸收性物品制造装置
JP6184721B2 (ja) * 2012-09-28 2017-08-23 ユニ・チャーム株式会社 吸収性物品
JP5667154B2 (ja) * 2012-12-04 2015-02-12 花王株式会社 積繊体の製造方法
JP6073127B2 (ja) * 2012-12-28 2017-02-01 ユニ・チャーム株式会社 伸縮性シートの製造方法、及び、伸縮性シートの製造装置
JP5936560B2 (ja) * 2013-01-18 2016-06-22 ユニ・チャーム株式会社 吸収性物品
CN203402754U (zh) * 2013-07-24 2014-01-22 尤妮佳株式会社 折叠装置以及吸收性物品制造装置
CN105764459B (zh) * 2013-11-29 2019-11-19 花王株式会社 吸收体的制造装置
JP6271313B2 (ja) * 2014-03-25 2018-01-31 ユニ・チャーム株式会社 吸収体の製造装置及び製造方法
CN107041812A (zh) * 2017-01-09 2017-08-15 瑞光（上海）电气设备有限公司 一种吸收体成型装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002301105A (ja) * 2001-04-06 2002-10-15 Uni Charm Corp 吸収性物品、吸収性物品用吸収体及びその製造方法
JP3149868U (ja) * 2009-02-05 2009-04-16 マルシン産業株式会社 搬送用ベルト
JP2016097172A (ja) * 2014-11-25 2016-05-30 花王株式会社 吸収体の製造方法
WO2017056715A1 (ja) * 2015-09-30 2017-04-06 大王製紙株式会社 吸収性物品及びその製造方法

Also Published As

Publication number Publication date
CN111093576A (zh) 2020-05-01
JP2019063374A (ja) 2019-04-25
CN111093576B (zh) 2022-03-22
JP7027103B2 (ja) 2022-03-01
TW201922608A (zh) 2019-06-16

Similar Documents

Publication Publication Date Title
WO2019069880A1 (ja) 吸収体の製造方法及び吸収体の製造装置
CN111405886B (zh) 吸收性物品的包装体和吸收性物品的包装体的制造方法
JP2019063369A (ja) 吸収体の製造方法及び吸収体の製造装置
JP2019063371A (ja) 吸収体の製造方法及び吸収体の製造装置
CN111050715B (zh) 吸收体的制造方法
JP6965082B2 (ja) 吸収体の製造方法
JP6952560B2 (ja) 吸収体の製造方法
JP6982453B2 (ja) 吸収体の製造方法及び吸収体の製造装置
JP2019063375A (ja) 吸収性物品の製造方法及び吸収性物品の製造装置
TWI808099B (zh) 吸收體之製造方法及吸收體之製造裝置
CN110636821B (zh) 吸收体和吸收性物品的制造方法、以及吸收体和吸收性物品的制造装置
CN110603015B (zh) 吸收体的制造方法和吸收性物品的制造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18864657

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18864657

Country of ref document: EP

Kind code of ref document: A1