WO2020105077A1 - 吸収性物品の製造方法、吸収性物品製造装置、吸収性物品、及び吸収体 - Google Patents

吸収性物品の製造方法、吸収性物品製造装置、吸収性物品、及び吸収体

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Publication number
WO2020105077A1
WO2020105077A1 PCT/JP2018/042621 JP2018042621W WO2020105077A1 WO 2020105077 A1 WO2020105077 A1 WO 2020105077A1 JP 2018042621 W JP2018042621 W JP 2018042621W WO 2020105077 A1 WO2020105077 A1 WO 2020105077A1
Authority
WO
WIPO (PCT)
Prior art keywords
tow
absorbent article
absorber
opening
gas
Prior art date
Application number
PCT/JP2018/042621
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
慧子 小林
雅人 重松
真悟 永田
Original Assignee
株式会社ダイセル
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 株式会社ダイセル filed Critical 株式会社ダイセル
Priority to PCT/JP2018/042621 priority Critical patent/WO2020105077A1/ja
Priority to CN201880096231.3A priority patent/CN112584805A/zh
Publication of WO2020105077A1 publication Critical patent/WO2020105077A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/18—Separating or spreading
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment

Definitions

  • the present invention relates to an absorbent article manufacturing method, an absorbent article manufacturing apparatus, an absorbent article, and an absorbent body.
  • Absorbent articles such as disposable diapers and urine leakage prevention pads include, for example, an absorber that absorbs water.
  • the absorber is manufactured by opening a crimped cellulose acetate tow, for example, as disclosed in Patent Document 1.
  • a plurality of fibers of the opened tow are combined with, for example, a binder.
  • the absorbent article including the absorbent body having such a structure, for example, moisture diffuses into the absorbent body through the fine pores of the top sheet arranged so as to overlap with the absorbent body, and is absorbed into the particulate matter.
  • SAP super absorbent polymer
  • the quality of the absorbent article may deteriorate due to the granular material falling off from the absorbent body. Further, by binding a plurality of fibers of the tow with a binder, the tactile sensation of the absorbent article may be deteriorated.
  • the present invention prevents the granular material from falling off from the absorbent body and prevents the tactile sensation of the absorbent article from decreasing when manufacturing an absorbent article including an absorbent body in which the granular material is arranged.
  • the purpose is to
  • the absorbent article manufacturing method the tow to be conveyed, in at least one opening chamber of the gas opening device is opened by gas, the tow of the.
  • granular material is added to the tow, and on the downstream side in the transport direction from the gas fiber opening device, to the tow.
  • a binder that binds a plurality of contained fibers is attached to the lower surface of the tow.
  • the tow to be conveyed is opened by the gas in the opening chamber of the gas opening device. Further, the particulate matter is added to the tow on the upstream side in the transport direction with respect to the outlet of the opening chamber on the most downstream side in the transport direction. As a result, a plurality of fibers of the tow are three-dimensionally entangled while being opened, and the particulate matter is dispersed in the fiber gap. Therefore, the absorbent article including the absorbent body in which the granular material is arranged can be obtained.
  • a binder that binds multiple fibers of the tow is attached to the lower surface of the tow downstream of the gas opening device in the transport direction.
  • a plurality of fibers on the lower side of the tow opened by the gas opening device can be combined. Therefore, on the lower side of the tow, it becomes easy for the particulate matter to be held in the fiber gaps of the tow. Therefore, it is possible to prevent the particulate matter from falling off from the lower surface of the absorber.
  • the absorbent body can have an unbonded region in which a plurality of fibers are not bonded. Therefore, the soft touch of the tow can be maintained. Therefore, it is possible to prevent the feel of the absorbent article from being deteriorated.
  • the binder may be further attached to the upper surface of the tow on the downstream side of the gas opening device in the transport direction. Accordingly, it is possible to favorably prevent the particulate matter from falling off the upper surface of the absorber.
  • the binder may be further attached to a side surface of the tow, which is perpendicular to the transport direction, on the downstream side of the gas opening device in the transport direction. Accordingly, it is possible to favorably prevent the particulate matter from falling off from the side surface of the absorber that is perpendicular to the transport direction.
  • the towing is opened by the gas opening device having a tubular opening part in which the opening chamber is formed, and an introducing part that introduces the tow and the gas into the opening part. May be.
  • the tow can be efficiently and bulky opened by the gas introduced into the opening chamber of the tubular opening part from the introduction part while preventing the particulate matter from falling out of the absorber.
  • the particulate matter may be added to the tow at the upstream side in the transport direction with respect to the gas introduction port in the introduction section. As a result, it is possible to easily disperse and disperse the particulate matter uniformly throughout the tow to be opened in the opening chamber while preventing the particulate matter from falling off from the absorbent body.
  • the particulate matter may be added to the tow at a position in the opening part that is separated from the inner peripheral surface of the opening part. Accordingly, it is possible to prevent the particulate matter from falling off from the absorbent body and facilitate the encapsulation of the particulate matter inside the tow opened in the opening chamber.
  • the gas opening device may be arranged so that the tow can pass downhill. This makes it possible to increase the efficiency of the space for disposing the gas opening device by tilting the gas opening device while preventing the particulate matter from falling out of the absorber.
  • the particles may be added to the tow inside the opening part. This makes it possible to facilitate the disposition of the particulate matter inside the tow while preventing the particulate matter from falling off from the absorbent body.
  • the tow may be opened by bringing the tow into contact with the peripheral surfaces of a plurality of opening roll pairs on the upstream side of the gas opening device in the conveying direction. Accordingly, the tow opened by the plurality of pairs of opening rolls can be further opened by the gas opening device while being entwined three-dimensionally. Therefore, it is possible to prevent the particulate matter from falling off from the absorbent body while opening the tow satisfactorily.
  • a liquid-permeable porous sheet may be supplied to the upper surface of the tow having the binder added to the lower surface. As a result, it is possible to favorably prevent the absorbent article from returning to the liquid while preventing the particulate matter from falling off from the absorbent body.
  • An absorbent article manufacturing apparatus is a gas opening device that opens a tow to be conveyed by gas in at least one opening chamber, and a most downstream side in the conveying direction of the tow. Included in the tow on the upstream side in the transport direction from the outlet of the opening chamber, a granular material adding device for adding particulates to the tow, and on the downstream side in the transport direction from the gas opening device.
  • a binder for binding a plurality of fibers to the lower surface of the tow comprising a binder attachment device, the gas opening device, a tubular opening portion in which the opening chamber is formed,
  • the opening section has an introduction section for introducing the tow and the gas, and the tow is arranged so that it can pass in a downward slope.
  • the absorbent article including the absorbent body in which the granular material is arranged. Further, on the lower side of the tow, it becomes easier for the particulate matter to be held in the fiber gaps of the tow. Therefore, it is possible to prevent the particulate matter from falling off from the absorber. In addition, the soft touch of the tow can be maintained. Therefore, it is possible to prevent the touch of the absorbent article from being deteriorated.
  • a gas opening device is placed so that the tow can pass downhill. Therefore, the gas opening device can be arranged to be inclined. Therefore, the space for disposing the gas opening device can be made efficient.
  • the fiber opening device has a flow channel cross-sectional shape in which the height dimension is smaller than the width dimension when viewed from the tow conveying direction. Therefore, it is possible to open the tow so as to widen it and arrange the granular material inside the tow. Therefore, the degree of freedom in designing the absorber can be improved.
  • An absorbent article is a tow made of a plurality of opened fibers, and a sheet-shaped absorbent body including a granular material arranged inside the tow, and the absorbent body.
  • the bonding region extends along the other surface on the other surface side of the absorber, the non-bonding area, It is arranged on the inner side in the thickness direction of the absorber with respect to the coupling region.
  • the binding region of the absorber extends along the other surface on the other surface side of the absorber. Therefore, it is possible to prevent the particulate matter arranged inside the tow of the absorbent body from falling off from the other surface side of the absorbent body. As a result, an absorbent article in which the particulate matter is prevented from falling off is obtained.
  • the non-bonding region of the absorbent body is arranged inside the bonding region in the thickness direction of the absorber. Therefore, the soft touch of the tow can be maintained. Therefore, it is possible to prevent the tactile sensation of the absorbent article including the absorber from being lowered.
  • the porous sheet is arranged so as to overlap with the absorbent body on one surface side of the absorbent body. Therefore, the absorbent body can quickly absorb the moisture through the porous sheet.
  • the binding region may further extend along the one surface on the one surface side of the absorber. As a result, it is possible to favorably prevent the particulate matter disposed inside the tow of the absorbent body from falling off from one surface side of the absorbent body.
  • the coupling region may further extend along the side surface of the absorber from the other surface side toward the one surface side. Accordingly, it is possible to favorably prevent the particulate matter arranged inside the tow of the absorbent body from falling off from the side surface of the absorbent body.
  • An absorber is formed into a sheet containing a tow consisting of a plurality of opened fibers and a granular material arranged inside the tow, and a plurality of the tows. And a non-bonded region in which a plurality of fibers of the tow are not bonded, the bond region extending along the first surface on the first surface side.
  • the non-bonding region is arranged inside the bonding region in the thickness direction.
  • the bonding area of the absorbent body extends along the first surface on the first surface side of the absorbent body. Therefore, it is possible to prevent the particulate matter arranged inside the tow of the absorbent body from falling off from the first surface side of the absorbent body. As a result, an absorbent body can be obtained in which the particulate matter is prevented from falling off.
  • the non-bonding region of the absorber is arranged inside the absorber in the thickness direction of the absorber. Therefore, the soft touch of the tow can be maintained. Therefore, when an absorbent article including the absorber is manufactured, it is possible to prevent the tactile sensation of the absorbent article from being deteriorated.
  • the bonding area may further extend along the second surface on the second surface side. Accordingly, it is possible to favorably prevent the particulate matter arranged inside the tow of the absorbent body from falling off from the second surface side of the absorbent body.
  • the bonding region may further extend along the side surface from the first surface side toward the second surface side. Accordingly, it is possible to favorably prevent the particulate matter arranged inside the tow of the absorbent body from falling off from the side surface of the absorbent body.
  • the present invention it is possible to prevent the granular material from falling off from the absorbent body when manufacturing an absorbent article including the absorbent body in which the granular material is arranged.
  • the upstream side refers to the upstream side of the tow band 60 in the transport direction P.
  • the downstream side refers to the downstream side of the tow band 60 in the transport direction P.
  • FIG. 1 is a schematic diagram of an absorbent article manufacturing apparatus 1 (hereinafter, referred to as manufacturing apparatus 1) according to the first embodiment.
  • FIG. 2 is a vertical cross-sectional view of the gas opening device 9 and the particulate matter adding device 10 of FIG. 1 viewed from the width direction of the tow band. In FIG. 2, the illustration of the storage section 23 of the particulate matter addition device 10 is omitted.
  • FIG. 3 is an exploded view of the spread part 20 of FIG.
  • a packaging container C is arranged near the manufacturing apparatus 1.
  • a tow band 60 including a plurality of fibers is compressed and packed in a bale-shaped folded state.
  • the packaging container C of FIG. 1 has a sectional structure.
  • the fibers of the tow band 60 are, for example, long fibers of cellulose acetate tow, but are not limited thereto.
  • the tow band 60 is transported in the transport direction P while keeping the width direction horizontal.
  • the manufacturing apparatus 1 includes a first manufacturing unit 2 and a second manufacturing unit 3.
  • the first manufacturing unit 2 manufactures the absorber 61 using the tow band 60.
  • the first manufacturing unit 2 includes a first widening device 4, a guide 5, a second widening device 6, a first opening roll pair 7, a second opening roll pair 8, a gas opening device 9, a particulate matter addition device 10, It has a binder attachment device 11 and a transport roll pair 12.
  • the first widening device 4 widens the tow band 60 rolled up from inside the packaging container C in the width direction.
  • the guide 5 guides the tow band 60 that has passed through the first widening device 4 toward the second widening device 6.
  • the second widening device 6 further widens the tow band 60 that has passed through the guide 5 in the width direction.
  • the opening roll pairs 7 and 8 further open the tow band 60 that has passed through the second widening device 6, on the upstream side of the gas opening device 9.
  • the second opening roll pair 8 is arranged on the downstream side of the first opening roll pair 7.
  • the first opening roll pair 7 has a pair of rolls 14 and 15.
  • the second opening roll pair 8 has a pair of rolls 16 and 17.
  • the tow band 60 that has passed through the second widening device 6 is inserted between the pair of rolls 14 and 15 and between the pair of rolls 16 and 17. As a result, the tow band 60 is opened while tension is applied in the transport direction P.
  • the tow band 60 that has passed through the second opening roll pair 8 is guided by the plurality of guide rolls 13 and introduced into the gas opening device 9.
  • the gas opening device 9 opens the tow band 60 with the gas G.
  • the gas opening device 9 has a long shape, and a transport path 9a for transporting the tow band 60 is formed inside.
  • the gas opening device 9 of this embodiment is arranged so that the upstream side is higher than the downstream side.
  • the transport path 9a extends downward from the upstream side to the downstream side.
  • the space for disposing the gas opening device 9 is more efficient than when the gas opening device 9 is arranged horizontally, for example.
  • the gas opening device 9 may be arranged horizontally, for example.
  • the gas opening device 9 has a connection part 18, an introduction part 19, an opening part 20, and a retention part 21.
  • the transport path 9a includes an internal space 18a of the connection part 18, an internal space 19a of the introduction part 19 and a tow band introduction path 19b, an internal space 20a of the fiber opening part 20, and a retention chamber 21a of the retention part 21.
  • connection part 18 is attached to the upstream side of the introduction part 19 and is connected to the supply pipe 24 of the particulate matter addition device 10.
  • the internal space 18a is connected to the internal space 19a.
  • the connecting portion 18 introduces the tow band 60 that has passed through the second opening roll pair 8 into the introducing portion 19 via the internal space 18a. Further, the granular material 50 is supplied from the supply pipe 24 of the granular material adding device 10 to the internal space 18a.
  • the introducing section 19 introduces the tow band 60 and the granular material 50 into the opening section 20.
  • the introduction portion 19 has a cylindrical shape, and an internal space 19a extending in the transport direction P is formed.
  • the introduction unit 19 generates a jet by the gas G introduced from the outside in the internal space 19a. Thereby, the introduction part 19 mixes the tow band 60 and the granular material 50.
  • the introduction section 19 has a tubular mixing section 41 and a nozzle section 42.
  • the mixing section 41 has a gas inlet 41a, a tow band inlet 41b, and a tow band outlet 41c.
  • the gas inlet 41a is arranged on the upstream side of the mixing section 41.
  • the tow band inlet 41b is arranged at the upstream end of the mixing section 41.
  • the tow band outlet 41c is arranged at the downstream end of the mixing section 41.
  • the gas inlet 41a introduces the pressurized gas G (air as an example) into the internal space 19a.
  • the addition position of the particulate matter 50 to the tow band 60 is located upstream of the gas introduction port 41a.
  • the tow band introduction port 41b introduces the tow band 60 into the internal space 19a.
  • the downstream end of the mixing section 41 is connected to the fiber opening section 20.
  • the nozzle portion 42 is arranged on the upstream side of the internal space 19a.
  • a taper portion 42a that tapers from the upstream side toward the downstream side is formed at the downstream end of the nozzle portion 42.
  • the inner peripheral surface of the mixing portion 41 facing the outer peripheral surface of the tapered portion 42a is reduced in diameter from the upstream side to the downstream side while being separated from the outer peripheral surface of the tapered portion 42a.
  • a jet flow path 19c is formed between the outer peripheral surface of the tapered portion 42a and the inner peripheral surface of the mixing portion 41.
  • the jet flow path 19c generates a jet by the gas G introduced into the internal space 19a from the gas introduction port 41a.
  • a tow band introduction path 19b is formed inside the nozzle portion 42.
  • the outlet of the tow band introduction path 19b is arranged on the downstream side of the gas introduction port 41a.
  • the tow band 60 that has passed through the tow band introduction path 19b is mixed with the particulate matter 50 by the gas G that has passed through the jet flow path 19c and flows through the internal space 19a.
  • the gas G may be a gas other than air.
  • the outlet of the tow band introducing passage 19b and the gas introducing port 41a may be arranged at a position overlapping with each other when viewed from the side. Further, the outlet of the tow band introducing passage 19b may be arranged on the upstream side of the gas introducing port 41a.
  • the opening part 20 opens the tow band 60 to form it, and disperses and arranges the granular material 50 inside the tow band 60.
  • the opening section 20 has a tubular shape, and an internal space 20a extending in the transport direction P is formed inside.
  • the internal space 20a has at least one opening chamber (here, the first opening chamber 20f and the first opening chamber 20f, which has a flow passage cross-sectional shape in which the height dimension (thickness dimension of the tow band 60) is smaller than the width dimension when viewed from the transport direction P. It has a second opening chamber 20g).
  • the opening section 20 opens the conveyed tow band 60 with the gas G and mixes the tow band 60 and the granular material 50.
  • the opening unit 20 has a first member 43 and a second member 44 which are combined with each other in the thickness direction of the tow band 60. Grooves 43a and 44a extending in the transport direction P are formed at the centers of the surfaces of the first member 43 and the second member 44 facing each other.
  • the inner peripheral surface 20c of the spread portion 20 is formed by combining the groove portions 43a and 44a.
  • the inner space 20a is formed by the inner peripheral surface 20c.
  • the internal space 20a communicates with the internal space 19a of the introduction part 19.
  • the opening section 20 has an upstream section 20d and a downstream section 20e.
  • a flow path 20b and a first opening chamber 20f are formed in the upstream portion 20d.
  • the flow path 20b is located on the upstream side of the upstream portion 20d.
  • the first opening chamber 20f has an upstream area 20f1 and a downstream area 20f2.
  • the width W1 of the upstream region 20f1 gradually increases from the upstream side to the downstream side.
  • the width W2 of the downstream region 20f2 gradually increases from the upstream side to the downstream side at a rate faster than the width W1 of the upstream region 20f1.
  • the flow passage cross-sectional area of the first opening chamber 20f gradually increases from the upstream side to the downstream side.
  • the opening unit 20 has a region in which the flow passage cross-sectional area of the internal space 20a increases in the transport direction P.
  • the tow band 60 passes through the inside of the first opening chamber 20f, the tow band 60 expands according to the shape of the first opening chamber 20f and is opened while entwining a plurality of fibers three-dimensionally.
  • a second opening chamber 20g is formed inside the downstream portion 20e.
  • the second opening chamber 20g is continuous with the first opening chamber 20f.
  • the width W3 of the second opening chamber 20g is wider than the width W2 at the outlet of the downstream region 20f2.
  • the flow passage cross-sectional area of the second opening chamber 20g is larger than the flow passage cross-sectional area at the outlet of the downstream region 20f2.
  • Width W3 of the second opening chamber 20g is constant in the transport direction P.
  • the flow passage cross-sectional shape of the first opening chamber 20f and the second opening chamber 20g may be circular, for example.
  • the retention section 21 is arranged on the downstream side of the opening section 20, and temporarily retains the tow band 60 that has passed through the internal space 19a.
  • the retention section 21 has a plurality of elongated members 22.
  • the upstream end of the elongated member 22 is connected to the downstream end of the fiber opening unit 20.
  • a retention chamber 21 a extending in the transport direction P is formed in the retention part 21 by the plurality of elongated members 22.
  • annular end surface 20h extending perpendicularly to the transport direction P is formed at the boundary between the upstream portion 20d and the downstream portion 20e.
  • the end face 20h extends in the circumferential direction of the second opening chamber 20g and is provided with a plurality of holes into which the elongated members 22 are inserted.
  • the plurality of long members 22 are extended in the transport direction P at intervals in the circumferential direction of the transport path 9a.
  • the flow passage cross-sectional shape of the retention chamber 21a is similar to the flow passage cross-sectional shape of the internal space 20a at the connection position between the elongated member 22 and the end surface 20h. Therefore, the shape of the tow band 60 molded while being opened by the first opening chamber 20f and the second opening chamber 20g is retained also in the retention chamber 21a.
  • the downstream ends of the plurality of long members 22 are closer to each other as they go from the upstream side to the downstream side.
  • the tow band 60 that has passed through the outlet of the internal space 20a temporarily stays in the stay chamber 21a and then passes through the stay portion 21.
  • the retention section 21 suppresses expansion of the tow band 60 and adjusts the bulk and fiber density of the tow band 60.
  • the particulate matter adding device 10 adds the particulate matter 50 to the tow band 60 on the upstream side in the transport direction P from the outlet of the opening chamber (the second opening chamber 20g in the present embodiment) on the most downstream side in the transport direction P. To do.
  • the granular material 50 has a water-absorbing property, and contains a highly water-absorbing resin as an example.
  • the particulate matter addition device 10 has a storage part 23 and a supply pipe 24.
  • the granular material 50 is stored in the storage unit 23.
  • the supply pipe 24 has one end connected to the storage portion 23 and the other end connected to the transport path 9a.
  • the supply pipe 24 extends downward from the one end toward the other end.
  • the particulate matter addition device 10 causes the particulate matter 50 stored in the storage portion 23 to flow through the supply pipe 24. As a result, the particulate matter addition device 10 adds to the tow band 60 in the internal space 19a.
  • the granular material adding device 10 adds the granular material 50 to the tow band 60 from the lower surface 60b side of the tow band 60.
  • the particulate matter addition device 10 may add the particulate matter 50 to the tow band 60 from the upper surface 60a side of the tow band 60.
  • the particulate matter adding device 10 includes the particulate matter 50 in the tow band 60 on the upstream side of the gas opening device 9 (for example, on the downstream side of the second opening roll pair 8 and on the upstream side of the gas opening device 9). May be arranged to add.
  • the binder impregnating device 11 impregnates, on the downstream side of the gas opening device 9, a binder B that binds a plurality of fibers contained in the tow band 60 to the lower surface 60b of the tow band 60.
  • the binder attachment device 11 of the present embodiment attaches the binder B to the entire circumference of the tow band 60 as viewed in the transport direction P.
  • the lower surface 60b of the tow band 60 is on the side opposite to the surface (upper surface 60a) of the tow band 60 that first comes into contact with moisture when the absorbent article 64 (see FIG. 4) manufactured by the manufacturing apparatus 1 is used. Is a face.
  • the binder attachment device 11 has a case 26, a spraying section 27, a guide section 28, and a discharging section 29.
  • the spray unit 27 has at least one nozzle.
  • the spray part 27 is arranged so that the liquid binder B can be sprayed from the nozzle toward the lower surface of the tow band 60 from the lower side of the case 26.
  • the spray unit 27 has a plurality of nozzles.
  • the spray part 27 is arranged so that the liquid binder B can be sprayed from the nozzle toward the entire circumference of the tow band 60 passing through the case 26 as viewed in the transport direction P.
  • the binder B is supplied to the spray unit 27 through the tube 30 extending from the case 26 to the outside.
  • the guide portion 28 extends vertically inside the case 26.
  • the guide portion 28 supports the upper surface 60a and the lower surface 60b of the tow band 60 to stabilize the attitude of the tow band 60.
  • the discharging unit 29 is disposed below the case 26, and discharges the residual binder B sprayed from the spraying unit 27 to the outside of the case 26.
  • the toe band 60 is changed.
  • the binder B can be attached to a region from the surface of the to a predetermined depth.
  • the depth dimension of the binder B attachment area from the surface of the tow band 60 can be appropriately set.
  • the depth dimension is, for example, preferably a value in the range of 0 or more and 1/5 or less of the thickness dimension of the tow band 60 in the transport region from the exit of the binder attachment device 11 to the nip point of the transport roll pair 12, and 0 It is more preferable that the value is in the range of 1/10 or more, and it is further preferable that the value is in the range of 0 or more and 1/20 or less.
  • the method by which the binder attachment device 11 attaches the binder B to the tow band 60 is not limited.
  • a method of attaching the binder B to the tow band 60 using any of a rotating brush, a rotating roll, or a rotating disk may be used.
  • plasticizers capable of dissolving the fibers of the tow band 60 can be used.
  • plasticizer that can be used include ester plasticizers such as triacetin, triethylene, glycol diacetate, triethylene glycol dipropionate, dibutyl phthalate, dimethoxyethyl phthalate, and citric acid triethyl ester.
  • ester plasticizers such as triacetin, triethylene, glycol diacetate, triethylene glycol dipropionate, dibutyl phthalate, dimethoxyethyl phthalate, and citric acid triethyl ester.
  • the plasticizer can be appropriately selected depending on the type of the tow band 60.
  • the tow band 60 contains cellulose acetate tow
  • a plasticizer is volatile. Therefore, it is possible to prevent the plasticizer from remaining in the manufactured absorbent article 64. Thereby, the safety of the absorbent article 64 can be improved.
  • the amount of the binder B attached to the tow band 60 can be set appropriately.
  • the impregnated amount is preferably, for example, a value in the range of 1 wt% to 50 wt% of the total weight of the tow band 60 with the binder B immediately after impregnating the binder B, and a value in the range of 1 wt% to 10 wt% inclusive. Is more desirable.
  • the pair of transfer rolls 12 transfers the tow band 60 that has passed through the binder attachment device 11 to the downstream side.
  • the tow band 60 is inserted between the pair of transport rolls 31 and 32 included in the transport roll pair 12.
  • the tow band 60 is pressed in the thickness direction by the pair of transport rolls 31 and 32. Thereby, the absorber 61 is manufactured.
  • the absorber 61 is conveyed to the second manufacturing unit 3.
  • the second manufacturing unit 3 arranges the back sheet 62 having air permeability and the top sheet (porous sheet) 63 having liquid permeability on the absorber 61 in an overlapping manner.
  • the second manufacturing unit 3 includes a first supply device 35, a transport device 36, a second supply device 37, a third supply device 38, a molding roll pair 39, and a sticking device 40.
  • the first feeding device 35 feeds the strip-shaped backsheet 62 from the first sheet roll R1 and feeds it onto a predetermined conveyance line L.
  • the transport device 36 transports the back sheet 62 to the transport line L.
  • the absorber 61 is supplied onto the back sheet 62.
  • the second supply device 37 feeds the strip-shaped top sheet 63 from the second sheet roll R2, and puts the top sheet 63 on the transport line L so that the absorber 61 is sandwiched between the back sheet 62 and the top sheet 63. Supply.
  • the third supply device 38 supplies the adhesive to the top sheet 63 between the second sheet roll R2 and the forming roll pair 39.
  • the molding roll pair 39 conveys the stacked back sheet 62, absorber 61, and top sheet 63 to the downstream side while molding them.
  • the sticking device 40 presses the back sheet 62 and the top sheet 63 in the thickness direction, and sticks the back sheet 62 and the top sheet 63 with an adhesive while sandwiching the absorber 61.
  • the back sheet 62, the absorber 61, and the top sheet 63 that are stuck by the sticking device 40 are cut into predetermined dimensions. Thereby, the absorbent article 64 is manufactured.
  • the backsheet 62 of the absorbent article 64 may be omitted depending on the application.
  • the tow band 60 to be conveyed is opened by the gas G in at least one opening chamber of the gas opening device 9 by using the manufacturing device 1, and the most downstream side.
  • the particulate matter 50 is added to the tow band 60 on the upstream side of the outlet of the fiber opening chamber in the above, and the binder B is attached to the lower surface 60b of the tow band 60 on the downstream side of the gas opening device 9.
  • the absorbent article 64 including the absorbent body 61 in which the granular material 50 is arranged is obtained.
  • the binder B is attached to the lower surface 60b of the tow band 60 on the downstream side of the gas opening device 9.
  • a plurality of fibers under the tow band 60 opened by the gas opening device 9 can be combined. Therefore, on the lower side of the tow band 60, the particulate matter 50 is easily held in the fiber gap of the tow band 60. Therefore, it is possible to prevent the granular material 50 from falling off from the lower surface of the absorber 61.
  • the binder B is locally attached to the lower surface 60b of the tow band 60 with respect to the tow band 60, so that the absorbent body 61 can have an unbonded region 60d to which a plurality of fibers described later are not bonded. Therefore, the soft touch of the toe band 60 can be maintained. Therefore, it is possible to prevent the tactile sensation of the absorbent article 64 from being lowered.
  • the binder B is attached to the upper surface 60a of the tow band 60 on the downstream side of the gas opening device 9. Accordingly, it is possible to favorably prevent the particulate matter 50 from falling off the upper surface of the absorber 61.
  • the binder B is attached to the side surface of the tow band 60 perpendicular to the conveying direction P. Thereby, it is possible to favorably prevent the granular material 50 from falling off from the side surface of the absorber 61.
  • the tow band 60 is opened by the gas opening device 9 having the opening portion 20 and the introduction portion 19. Thereby, the tow band 60 can be efficiently and bulky opened by the gas G while preventing the granular material 50 from falling off from the absorber 61.
  • the particulate matter 50 is added to the tow band 60 on the upstream side of the gas introduction port 41a in the introduction section 19. As a result, it is possible to prevent the granular material 50 from falling off from the absorbent body 61, and to easily disperse the granular material 50 uniformly over the entire tow band 60 opened in the opening chamber.
  • the opening chamber has a flow passage cross-sectional shape whose height dimension is smaller than its width dimension when viewed from the transport direction P.
  • the tow band 60 is brought into contact with the peripheral surfaces of the plurality of opening roll pairs 7 and 8 to open the tow band 60.
  • the tow band 60 opened by the plurality of pairs of opening rolls 7 and 8 can be further opened by the gas opening device 9 while being entwined three-dimensionally. Therefore, it is possible to prevent the particulate matter 50 from falling off from the absorbent body 61 while satisfactorily opening the tow band 60.
  • liquid-permeable top sheet 63 is supplied to the upper surface 60a of the tow band 60 having the binder B added to the lower surface 60b. As a result, it is possible to prevent the granular material 50 from falling off from the absorbent body 61, and at the same time, prevent the liquid from returning to the absorbent article 64.
  • FIG. 4 is a vertical cross-sectional view of the absorbent body 61 according to the first embodiment viewed from the transport direction P.
  • FIG. 5 is a vertical cross-sectional view of the absorbent article 64 according to the first embodiment seen from the transport direction P.
  • the absorbent body 61 is formed in a sheet shape including a tow band 60 formed by a plurality of opened fibers and a granular material 50 arranged inside the tow band 60.
  • the granular material 50 is uniformly dispersed and arranged in the entire interior thereof.
  • the absorber 61 has a bonding region 60c in which a plurality of fibers of the tow band 60 are bonded and an unbonding region 60d in which a plurality of fibers of the tow band 60 are not bonded.
  • the binder attachment device 11 attaches the binder B to the entire circumference of the tow band 60 as viewed in the transport direction P. Therefore, as viewed in the transport direction P, the coupling region 60c is arranged on the entire circumference of the absorber 61, and the non-coupling region 60d is arranged inside the absorber 61.
  • the total denier (TD) of the tow band 60 in the absorber 61 can be set appropriately.
  • the total denier of the tow band 60 can be set to a value in the range of 15,000 or more and 50,000 or less.
  • the basis weight of the absorber 61 can be set as appropriate.
  • the basis weight of the absorber 61 can be set to a value in the range of 20 g / m 2 or more and 200 g / m 2 .
  • the thickness dimension of the absorber 61 (thickness dimension after compression by the pair of molding rolls 39) can be appropriately set.
  • the thickness dimension of the absorber 61 can be set to a value in the range of 5 mm or more and 30 mm or less.
  • the restoring force of the tow band 60 is high, and the thickness dimension of the absorber 61 may not change much before and after compression molding with the molding roll pair 39.
  • the absorbent article 64 includes an absorber 61, a backsheet 62, and a topsheet 63.
  • the absorber 61 has a reduced thickness dimension as compared with the tow band 60 shown in FIG. 4 due to being compressed by the pair of transport rolls 12.
  • the top sheet 63 is arranged so as to overlap with the absorber 61 on one surface (upper surface) side of the absorber 61.
  • the back sheet 62 is arranged on the other surface (lower surface) side of the absorber 61 so as to overlap with the absorber 61.
  • the bonding region 60c of the absorbent body 61 extends along the other surface on the first surface (here, the other surface) side of the absorbent body 61. Thereby, it is possible to prevent the granular material 50 arranged inside the tow band 60 of the absorber 61 from falling off from the other surface side of the absorber 61. Thereby, the absorbent article 64 in which the granular material 50 is prevented from falling off is obtained.
  • the coupling region 60c of the absorbent body 61 extends along the one surface on the second surface (here, the one surface) side of the absorbent body 61. Accordingly, it is possible to favorably prevent the granular material 50 arranged inside the tow band 60 of the absorber 61 from falling off from one surface side of the absorber 61.
  • the coupling region 60c extends along the side surface of the absorbent body 61 from the other surface side toward the one surface side.
  • the coupling region 60c extends along the side surface of the absorber 61 in a partial region (regions on both sides in the width direction) of the absorber 61. Accordingly, it is possible to favorably prevent the granular material 50 arranged inside the tow band 60 of the absorber 61 from falling off from the side surface of the absorber 61.
  • the non-bonding region 60d of the absorbent body 61 is arranged on the inner side in the thickness direction of the absorbent body 61 than the bonding region 60c.
  • the soft touch of the toe band 60 can be maintained. Therefore, it is possible to prevent the tactile sensation of the absorbent article 64 including the absorber 61 from being deteriorated.
  • the top sheet 63 is arranged so as to overlap the absorbent body 61 on one surface side of the absorbent body 61. Thereby, the absorbent body 61 can quickly absorb the moisture through the top sheet 63.
  • the back sheet 62 is arranged so as to overlap the absorbent body 61 on the other surface side of the absorbent body 61. Therefore, the backsheet 62 can prevent the moisture absorbed by the absorber 61 from leaking from the absorber 61. In addition, since the back sheet 62 exhibits air permeability, it is possible to prevent stuffiness from occurring during mounting.
  • FIG. 6 is a vertical cross-sectional view of the absorber 161 according to the first modified example of the first embodiment as seen from the transport direction P.
  • FIG. 7 is a vertical cross-sectional view of the absorbent article 164 according to the first modified example of the first embodiment as seen from the transport direction P.
  • the absorbent body 161 has the bonding regions 60c arranged only on one surface side and the other surface side.
  • the absorber 161 is obtained by setting the spraying direction of the spraying section 27 so that the binder B is adhered only to one surface side and the other surface side of the tow band 60 in the binder attachment device 11.
  • FIG. 8 is a vertical cross-sectional view of the absorber 261 according to the second modified example of the first embodiment as seen from the transport direction P.
  • FIG. 9 is a vertical cross-sectional view of the absorbent article 264 according to the second modified example of the first embodiment as seen from the transport direction P.
  • the absorbent body 261 has the bonding region 60c arranged only on the other surface side.
  • the absorber 261 is obtained by setting the spray direction of the spray unit 27 so that the binder B is adhered only to the other surface side of the tow band 60 in the binder adhering device 11.
  • the amount of the binder B attached to the tow band 60 in Modification 2 can be set as appropriate.
  • the attached amount is preferably a value in the range of 1 wt% to 25 wt% of the weight of the tow band 60 with the binder B immediately after the binder B is attached, and a value in the range of 1 wt% to 5 wt% inclusive, for example. Is more desirable.
  • FIG. 10 is a vertical cross-sectional view of the gas opening device 109 and the particulate matter adding device 110 according to the second embodiment as seen from the width direction of the tow band.
  • the gas opening device 109 of the second embodiment does not have a connecting portion corresponding to the connecting portion 18 of the gas opening device 9.
  • the supply pipe 124 of the particulate matter addition device 110 is connected to the opening part 120 of the gas opening device 109.
  • the downstream end portion 124a of the supply pipe 124 is exposed to the internal space 120a.
  • the downstream end portion 124a is arranged so as to open toward the downstream side in the transport direction P at a position in the opening portion 120 that is separated from the inner peripheral surface 120c of the opening portion 120.
  • the downstream end portion 124a extends parallel to the transport direction P in the internal space 120a.
  • the particulate matter 50 stored in the storage portion 123 is added to the tow band 60 at a position in the fiber opening part 120 that is separated from the inner peripheral surface 120c of the fiber opening part 120.
  • the granular material 50 is added to the inside of the tow band 60 in the process of opening the fibers on the downstream side in the transport direction P as compared with the first embodiment.
  • FIG. 11 is a vertical cross-sectional view of the absorbent body 361 according to the second embodiment as viewed in the transport direction P.
  • FIG. 12 is a vertical cross-sectional view of the absorbent article 364 according to the second embodiment as viewed in the transport direction P.
  • the granular material 50 is added to the inside of the tow band 60 during opening, so that the granular material 50 is sealed inside the tow band 60.
  • the binding region 60c is arranged on the entire circumference of the absorber 361 viewed from the transport direction P, and the particulate matter 50 is dispersed and arranged inside the non-binding region 60d surrounded by the binding region 60c. Has been done.
  • the granular material 50 is added to the tow band 60 at a position in the spread part 120 that is separated from the inner peripheral surface 120c of the spread part 120. This makes it possible to prevent the particulate matter 50 from falling off from the absorbent body 361, and at the same time, to facilitate the sealing of the particulate matter 50 inside the tow band 60 opened in the opening chamber.
  • the granular material 50 is not exposed on the surface of the absorbent body 361. Therefore, the tactile sensation after absorbing water can be kept relatively good. Note that in FIGS. 11 and 12, the granular material 50 is not dispersed and arranged inside the joint region 60c. However, some of the particles 50 may be dispersed and arranged inside the coupling region 60c.
  • the addition position of the particulate matter 50 (the opening position of the downstream end portion 124a) is upstream of the outlet of the fiber-opening chamber on the most downstream side in the transport direction P, and from the tow band introduction port 141b. May be located on the downstream side.
  • the addition position of the granular material 50 may be, for example, on the upstream side of the center of the internal space 120a in the transport direction P. Further, the addition position of the particulate matter 50 may be on the downstream side of the tow band introduction passage 119b in the internal space 119a.
  • the particles 50 are passed inside the tow band 60 passing through the gas opening device 109. Have been found to be easily distributed uniformly.
  • the coupling region 60c may be arranged only on one surface side and the other surface side as in the first modification. Further, in the absorber of the second embodiment, the coupling region 60c may be arranged only on the other surface side as in the second modification.
  • the absorber 61 was manufactured as Example 1 using the manufacturing apparatus 1 of the first embodiment. Moreover, the absorber 361 was manufactured as Example 2 using the manufacturing apparatus of the second embodiment. Further, an absorber was manufactured as Comparative Example 1 by using an apparatus in which the impregnation apparatus 11 was omitted from the manufacturing apparatus 1 of the first embodiment. An absorbent body was manufactured as Comparative Example 2 by using a device obtained by omitting the attachment device 11 from the manufacturing device of the second embodiment.
  • Example 2 a comparative example of an absorber was used under the same conditions as in Example 1 except that the manufacturing apparatus 1 of the first embodiment was used and the impregnation apparatus 11 was arranged upstream of the tow band introduction port 41b of the introduction unit 19. Manufactured as 3.
  • An absorber was used under the same conditions as in Example 2 except that the manufacturing apparatus of the second embodiment was used and the impregnation apparatus 11 was arranged upstream of the tow band introduction port 141b (see FIG. 10) of the introduction unit 119. It was manufactured as Comparative Example 4.
  • the tow bands used in Examples 1 and 2 and Comparative Examples 1 to 4 had a width dimension of 10 cm and a weight per length dimension of 30 cm of 6 g.
  • the amount of the particulate matter 50 added to the tow band was 2 g per tow band having a length of 30 cm.
  • the binder B triacetin was used as the binder B.
  • the absorbers of Examples 1 and 2 and Comparative Examples 1 to 4 were evaluated by the following procedure. First, the tactile sensation of each absorbent body was evaluated by touching the surfaces of the absorbent bodies of Examples 1 and 2 and Comparative Examples 1 to 4 with a hand.
  • a glass tube with an inner diameter of 6 cm was placed on the upper surface of the elongated absorber with the opening oriented vertically. In this state, 50 ml of physiological saline colored blue was poured into the glass tube at once.
  • the liquid diffusion length (longitudinal diffusion length and horizontal diffusion length) of the physiological saline formed on the upper surface of the absorber was measured.
  • the vertical diffusion length was in the longitudinal direction of the absorber, and the horizontal diffusion length was in the width direction of the absorber. This evaluated the water absorption.
  • the larger the liquid diffusion length the easier it is for the physiological saline to contact the particulate matter contained in the absorber. Therefore, it can be evaluated as having excellent water absorption.
  • Comparative Examples 1 and 2 were found to have a relatively high dropout rate of particulate matter. It is conceivable that the reason for this is that in Comparative Examples 1 and 2, since the binder B was not attached to the tow band 60, the particulate matter 50 was easily dropped from the fiber gap.
  • Comparative Example 2 did not have very good water absorption. The reason for this is that in Comparative Example 2, since the binder B was not attached to the tow band 60, the size of the fiber gaps on the surface of the tow band 60 was varied, and the granular material 50 enclosed inside the tow band 60 through each fiber gap. It is conceivable that it became difficult for the water to reach evenly.
  • Comparative Examples 3 and 4 did not have excellent tactile sensation. The reason for this is that in Comparative Examples 3 and 4, the amount of the binder B attached to the tow band 60 was relatively large, and since the binder B was attached to the entire inside of the tow band 60, the fibers were bound throughout the tow band 60, It is possible that the texture has become stiff.
  • Examples 1 and 2 are superior to Comparative Examples 1 to 4 in terms of the rate of dropout of particulate matter, the feel, and the water absorption.
  • the toe band 60 of the absorber 61 includes the binding region 60c and the non-binding region 60d. As a result, it is considered that the falling of the granular material 50 was prevented by the joining region 60c and the tactile sensation was well retained in the non-joining region 60d.
  • Example 2 when the particulate matter 50 is arranged in the entire tow band 60 (Example 1) because the fiber gap is maintained by the bonding region 60c, the particulate matter 50 is inside the tow band 60. It is conceivable that good water absorption was exhibited in any of the cases of being unevenly distributed (Example 2).
  • the tow band 60 has the coupling region 60c arranged all around the circumference.
  • the same degree of results as those of the examples 1 and 2 can be obtained.
  • the absorbent articles 64 and 364 including the absorbers 61 and 361 of Example 1 or 2 are manufactured, the upper surfaces of the absorbers 61 and 361 are covered with the top sheet 63.
  • the absorbers 61 and 361 of Examples 1 and 2 have excellent tactile sensations, it is considered that the tactile sensations of the absorbent articles 64 and 364 including the absorbers 61 and 361 are also excellent.
  • the absorbent articles 64 and 364 including the absorbent bodies 61 and 361 of Examples 1 and 2 are manufactured, the absorbent articles 61 and 361 exhibit excellent water absorption, so that in the absorbent articles 64 and 364, Is considered to exhibit excellent absorbency.
  • an absorbent article including an absorbent body in which the granular material is arranged
  • it is possible to prevent the granular material from falling off from the absorbent body, and the tactile sensation of the absorbent article. It has an excellent effect of preventing the decrease of Therefore, it is useful to widely apply as an absorbent article manufacturing method, an absorbent article manufacturing apparatus, and an absorbent article that can exert the significance of this effect.

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  • Textile Engineering (AREA)
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  • Heart & Thoracic Surgery (AREA)
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PCT/JP2018/042621 2018-11-19 2018-11-19 吸収性物品の製造方法、吸収性物品製造装置、吸収性物品、及び吸収体 WO2020105077A1 (ja)

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Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2014145139A (ja) * 2013-01-29 2014-08-14 Daicel Corp 開繊物の製造装置
JP2018135618A (ja) * 2017-02-23 2018-08-30 株式会社ダイセル 吸収性物品製造装置及び吸収性物品の製造方法

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JP5877710B2 (ja) * 2009-10-09 2016-03-08 住友精化株式会社 吸水シート
JP5526109B2 (ja) * 2011-11-29 2014-06-18 株式会社ダイセル 長尺状繊維トウの開繊物の製造装置
WO2016092594A1 (ja) * 2014-12-09 2016-06-16 株式会社ダイセル トウ開繊装置、これを用いた繊維シート製造装置及び繊維シートの製造方法
CN107735516A (zh) * 2015-06-19 2018-02-23 株式会社大赛璐 长条状的纤维丝束的开纤物的制造方法
WO2017009882A1 (ja) * 2015-07-15 2017-01-19 株式会社ダイセル トウ開繊装置、これを用いた繊維シート製造装置、及び、繊維シートの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014145139A (ja) * 2013-01-29 2014-08-14 Daicel Corp 開繊物の製造装置
JP2018135618A (ja) * 2017-02-23 2018-08-30 株式会社ダイセル 吸収性物品製造装置及び吸収性物品の製造方法

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