WO2023218888A1 - 使い捨て着用物品の製造方法および装置 - Google Patents

使い捨て着用物品の製造方法および装置 Download PDF

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Publication number
WO2023218888A1
WO2023218888A1 PCT/JP2023/015682 JP2023015682W WO2023218888A1 WO 2023218888 A1 WO2023218888 A1 WO 2023218888A1 JP 2023015682 W JP2023015682 W JP 2023015682W WO 2023218888 A1 WO2023218888 A1 WO 2023218888A1
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WO
WIPO (PCT)
Prior art keywords
absorbent
continuous
region
wearing article
main body
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/015682
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English (en)
French (fr)
Japanese (ja)
Inventor
山内　博文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zuiko Corp
Original Assignee
Zuiko Corp
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 Zuiko Corp filed Critical Zuiko Corp
Priority to CN202380035133.XA priority Critical patent/CN119053303A/zh
Priority to EP23803370.8A priority patent/EP4494619B1/en
Priority to JP2024520339A priority patent/JPWO2023218888A1/ja
Priority to US18/855,321 priority patent/US20250325410A1/en
Publication of WO2023218888A1 publication Critical patent/WO2023218888A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15723—Partitioning batts; Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15739—Sealing, e.g. involving cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15747—Folding; Pleating; Coiling; Stacking; Packaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15756—Applying tabs, strips, tapes, loops; Knotting the ends of pads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15764—Transferring, feeding or handling devices; Drives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15804—Plant, e.g. involving several steps

Definitions

  • the present invention relates to a method and apparatus for manufacturing a disposable wearing article, and more particularly, to a technique for manufacturing a substantially T-shaped disposable wearing article.
  • FIG. 4 is a developed view of a substantially T-shaped disposable wearing article 101.
  • one end side of the absorbent body 102 is joined to the intermediate position of the waist member 103.
  • the other end side 102c of the absorbent body 102 is folded back at the center portion 102b toward the waist member 103, and the absorbent body 102 is folded in half, and both ends of the waist member overlap. Supplied in a folded state.
  • FIG. 5 is a perspective view showing the manufacturing process of the disposable wearing article 101.
  • the waist member continuous body 171 to which the first portion, which is to become the waist member 103, is connected in the direction indicated by arrow Y, one end side of the plurality of absorbent bodies 102 is A continuous body of wearing articles 107 is formed which is joined in a comb-teeth shape at intervals.
  • the waistline member continuous body 171 side of the continuous body of wearing articles 107 is lifted and stacked on the other end side 102c of the absorbent main body 102, and the continuous body of worn articles 107 is stacked on the other end side 102c of the absorbent main body 102, and the continuous body of worn articles 107 is stacked on the other end side 102c of the absorbent main body 102, and the continuous body of worn articles 107 is stacked on the other end side 102c of the absorbent main body 102.
  • the absorbent main body 102 is folded in half so that a fold line 126 is formed at an intermediate position in the direction X.
  • the continuous body 107 of the wearing article is cut between the adjacent absorbent bodies 102 to form individual pieces of the disposable wearing article (for example, see Patent Document 1).
  • Patent Document 2 discloses that a continuous absorbent body to which a second portion that is to become an absorbent body is connected is sequentially cut while being conveyed along a cylindrical conveyance path to cut the absorbent body. Further, a folding device is disclosed which folds the absorbent body into two while conveying the absorbent body along a cylindrical conveyance path.
  • the absorbent body of the continuous body of worn articles When the absorbent body of the continuous body of worn articles is folded in half while the continuous body of worn articles is being transported, it is necessary to fold the absorbent body in half while gradually increasing the angle so as not to apply excessive force to the absorbent body 102. . Therefore, the section in which the absorbent main body 102 is folded in half becomes longer, and the installation space for the manufacturing apparatus for disposable wearing articles becomes longer.
  • the problem to be solved by the present invention is to provide a method and apparatus for manufacturing a disposable wearing article that can shorten the section in which the absorbent body is folded in half.
  • the present invention provides a method for manufacturing a disposable wearing article configured as follows.
  • the method for manufacturing a disposable wearing article includes (i) a first conveyance step of conveying in the first direction a continuous absorbent body in which a first portion that is to become an absorbent body is connected in a first direction; (ii) a second conveyance step of conveying in the second direction a waist member continuous body in which a second portion that is to become a waist member is connected in a second direction; and (iii) the first a first cutting step of sequentially cutting the absorbent body continuous body being conveyed in the direction to form the absorbent body; (iv) a turning step of rotating the absorbent body by 90 degrees; (v) The first area on one end side of the absorbent body that has been turned by 90 degrees is transferred to the waist member continuous body that is being conveyed in the second direction, and the second area on the other end side of the absorbent body The first region of the absorbent main body is joined to the waist member continuous body to form a wearing article continuous body.
  • the absorbent body is folded in half while the continuous body of worn articles is transported along a cylindrical conveyance path, the absorbent body is folded in half while the continuous body of worn articles is conveyed along a linear conveyance path.
  • the section where the absorbent body is folded in half can be shortened.
  • the method for manufacturing a disposable wearing article further includes (viii) a temporary fixing step of temporarily fixing the first region and the second region of the folded absorbent main body to each other.
  • the continuous body of wearable articles to which the bifolded absorbent bodies are joined can be transported at a higher speed, and the number of disposable wearable articles manufactured per unit time can be reduced. can be increased.
  • the method for manufacturing a disposable wearing article includes (ix) using a moving pad to receive the absorbent body that has been rotated by 90 degrees from the turning process, deliver the received absorbent body to the joining process, and perform the moving process. While moving at a first speed, the pad receives the absorbent body that has been rotated 90 degrees from the pivoting step, and while moving at a second speed different from the first speed, the pad moves the received absorbent body to the It further includes a re-pitching process to be transferred to the bonding process.
  • the interval between the absorbent bodies stacked on the continuous body of waistline members can be changed in the joining process.
  • the method for manufacturing a disposable wearing article includes (x) changing the conveyance speed of either or both of the waist member continuous body and the absorbent body continuous body according to the size of the disposable worn article. , further comprising a size changing step of changing the interval between the absorbent bodies stacked on the waist member continuous body in the joining step.
  • the present invention provides a manufacturing device for disposable wearing articles configured as follows.
  • the apparatus for manufacturing a disposable wearing article includes: (a) cutting an absorbent body continuous body in which a first portion that is to become an absorbent body is connected in a first direction while conveying it in the first direction; A first unit that forms the absorbent body and rotates the absorbent body by 90 degrees, and (b) a waist member continuous body in which a second portion that is to become a waist member is connected in a second direction. , the first region on one end side of the absorbent body that has been turned by 90 degrees is conveyed in the second direction, and the first region on the one end side of the absorbent body that has been turned by 90 degrees is conveyed in the conveyed waist member continuous body.
  • the third unit includes (c-1) a winding portion that moves along a cylindrical conveyance path, and (c-2) a winding portion that moves along the conveyance path in the axial direction of the conveyance path.
  • the absorbent body of the continuous wear article is folded in half while the continuous wear article is conveyed along the cylindrical conveyance path, so the continuous wear article is transported along the linear conveyance path.
  • the section in which the absorbent body is folded in half can be shortened.
  • the apparatus for manufacturing a disposable wearing article further includes (d) a temporary fixing device that temporarily fixes the first region and the second region of the folded absorbent main body to each other.
  • the continuous body of wearable articles to which the bifolded absorbent bodies are joined can be transported at a higher speed, and the number of disposable wearable articles manufactured per unit time can be reduced. can be increased.
  • the apparatus for manufacturing a disposable wearing article receives the absorbent body rotated by 90 degrees from the first unit while moving at a first speed, and moves at a second speed different from the first speed.
  • the apparatus further includes a repitching device having a transfer pad that transfers the received absorbent body to the second unit while moving at a speed.
  • the interval between the absorbent main bodies stacked on the continuous body of waistline members in the second unit can be changed.
  • the apparatus for manufacturing a disposable wearing article comprises: (f) a first conveying speed at which the first unit conveys the absorbent body continuous body; unit and the second conveying speed at which the winding section of the third unit conveys the waist member continuous body, or both of the absorbent main body and the second conveying speed at which the waist member continuous body is conveyed,
  • the apparatus further includes a size changing device that changes the interval.
  • the section in which the absorbent main body is folded in half can be shortened.
  • FIG. 1 is a schematic diagram of a manufacturing apparatus for disposable wearing articles.
  • FIG. 2 is a schematic diagram of a manufacturing apparatus for disposable wearing articles.
  • FIG. 3 is an explanatory diagram of the manufacturing process of the disposable wearing article.
  • FIG. 4 is a developed view of the disposable wearing article.
  • FIG. 5 is a perspective view showing the manufacturing process of the disposable wearing article.
  • Example 1 A method and apparatus for manufacturing a disposable wearing article according to Example 1 will be described with reference to FIGS. 1 to 3.
  • FIG. 1 and 2 are schematic diagrams of a manufacturing apparatus 12 for disposable wearing articles. 1 and 2, (A), (B), (C), (D), (E-1), (E-2), (F-1), (F-2), (G- 1), (G-2), (H-1), and (H-2) are indicated by arrows a, b, c, d, e1, e2, f1, f2, g1, g2, h1, and h2, respectively. It is a partial schematic diagram seen from the direction.
  • FIG. 3 is an explanatory diagram showing the manufacturing process of the disposable wearing article.
  • the manufacturing apparatus 12 for disposable wearing articles includes a first unit 20, a repitching device 30, a second unit 40, a third unit 50, and a temporary fixing device 60. , and a size changing device 70.
  • a guide roll 26 and a cutter roll 27 are arranged adjacent to the rotating drum 21.
  • the rotating drum 21 includes a plurality of suction tables 22 that move in the direction indicated by an arrow 24 along a cylindrical conveyance path 28 .
  • the suction table 22 suctions and holds the continuous absorbent body 2 introduced via the guide roll 26 onto a suction surface 23 in which a suction hole (not shown) communicating with a negative pressure source is formed.
  • the cutter roll 27 cuts the absorbent body continuous body 2 being conveyed while being attracted to the suction surface 23 of the suction table 22 at the gap 80 between adjacent suction tables 22 at an appropriate timing, thereby cutting the absorbent body 4 into pieces.
  • the suction table 22 moves along the cylindrical conveyance path 28 while holding the absorbent body 4 on the suction surface 23 and rotates 90 degrees, so that the direction connecting both ends 4p and 4q of the absorbent body 4 is the absorbent
  • the state is perpendicular to the conveyance direction of the main body 4.
  • a first portion 3 that is to become an absorbent body 4 having a predetermined length L is connected in a first direction 2x indicated by an arrow 2x.
  • an absorbent core 4k containing pulp and/or a superabsorbent polymer, etc. is arranged between two belt-shaped sheets 2a and 2b in a first direction 2x. They are spaced apart from each other.
  • the continuous absorbent body 2 is cut between adjacent absorbent cores 4k to form the absorbent body 4.
  • the repitching device 30 has a moving pad 32 that moves in the direction shown by an arrow 31 while changing the speed along a cylindrical conveyance path 38.
  • the movable pad 32 has a suction surface 34 formed with a suction hole (not shown) that communicates with a negative pressure source, and while moving at a first speed, the movable pad 32 is attached to the suction table 22 of the rotating drum 21 of the first unit 20.
  • the absorbent main body 4 that has been rotated by 90 degrees is attracted to the suction surface 34, the absorbent main body 4 that has been rotated by 90 degrees is received, the absorbent main body 4 is moved while changing the speed to a second speed different from the first speed, and is received.
  • the absorbent body 4 is delivered to the second unit 40 at a second speed. Using a servo motor makes it easy to change the speed of the moving pad 32.
  • the second unit 40 includes a conveyance device 42 arranged adjacent to the repitching device 30 and a bonding device 46 arranged along the conveyance device 42.
  • the conveying device 42 moves the waist member continuum 6, in which the second portion 7 (see FIG. 3) that is to become the waist member 8 (see FIG. 3) is connected in the second direction 6x, in the second direction 6x. transport.
  • the first region 4b on the one end 4p side of the absorbent main body 4 rotated by 90 degrees sent from the re-pitching device 30 to the waist member continuous body 6 being transported by the transporting device 42 is connected to the other end of the absorbent main body 4.
  • the second regions 4f on the side of the end 4q protrude from the continuous body 6 of the waistline members, so that they overlap one another at intervals.
  • the joining device 46 joins the first region 4b of the absorbent main body 4 and the continuous waist member 6 to each other, so that the first region 4b of the absorbent main body 4 and the continuous waist member 6 are joined to each other.
  • a continuous body of wearing articles 9 is formed.
  • the conveyance device 42 includes, for example, an endless belt 44 that has air permeability and circulates along a predetermined path, and a suction box (not shown) that is arranged inside the endless belt 44 and connected to a negative pressure source, It is configured so that the continuous body 6 of the waist member and the absorbent main body 4 rotated by 90 degrees are attracted and held on the outside while being conveyed.
  • the joining device 46 applies an adhesive in advance to at least one of a pair of opposing portions of the waist member continuous body 6 and the absorbent main body 4 that are scheduled to overlap with each other.
  • the joining device 46 may be configured to join the absorbent main body 4 and the waist member continuous body 6 to each other by heat sealing, ultrasonic sealing, or the like instead of an adhesive.
  • the repitching device 30 may be omitted, if the repitching device 30 is provided between the first unit 20 and the second unit 40, the absorbent main body 5 that overlaps the waist member continuous body 6 in the second unit 40 You can change the interval.
  • the third unit 50 includes a bi-folding drum 52, a guide roll 58, a conveying device and a cutting device (not shown), and folds the absorbent main body 4 into two and The continuous body 9 is cut at a cutting position between the absorbent bodies 4 or 5 adjacent to each other, and as shown in FIG. forming a disposable wearing article 10 joined in position.
  • the bifold drum 52 is arranged adjacent to the second unit 40, and receives and conveys the continuous body of wearing articles 9 from the second unit 40.
  • the bi-folding drum 52 is configured similarly to the folding device disclosed in Patent Document 2, and includes a wrapping portion 53 that opens and closes while moving along a cylindrical conveyance path 56 and a plurality of swing pads 54 .
  • the wrapping part 53 has an absorbent surface 53s (see partial schematic diagram (E-2)) formed with a suction hole (not shown) that communicates with a negative pressure source, and absorbent material of the continuous body 6 of the waist member 6 of the continuous body 9 of wearing articles.
  • the main body 4 moves along the cylindrical transport path 56 while attracting and holding the overlapping portion.
  • the swing pad 54 has an open position P where it is lined up with the winding part 53 in the axial direction of the transport path 56 along the transport path 56, and an open position P where it faces the winding part 53 in the radial direction of the transport path 56 with the transport path 56 in between. It swings between the closed position Q and the closed position Q as shown by an arrow 54x.
  • the swing pad 54 moves along the conveyance path 56 together with the wrapping portion 53 while holding the second region 4 f of the absorbent main body 4 of the continuous wear article 9 .
  • the swinging pad 54 has a suction surface 54s (see partial schematic diagram (E-2)) formed with a suction hole (not shown) that communicates with a negative pressure source, and the second absorbent body 4 of the continuous wear article 9.
  • the regions 4f are attracted and held, and moved at a predetermined distance from each other.
  • the swinging pad 54 When the swinging pad 54 is in the open position P, the winding part 53 starts to hold the waist member continuous body 6 of the wearing article continuous body 9, and the swinging pad 54 holds the absorbent body 4 of the wearing article continuous body 9. Holding of the second area 4f is started. While moving along the cylindrical conveyance path 56, the swing pad 54 swings to the closed position Q to overlap the second region 4f of the absorbent body 4 with the first region 4b of the absorbent body 4. By doing so, the absorbent main body 4 is folded in half. In the absorbent main body 5 folded in half, a fold line 4x (see partial schematic diagram (H-1)) is formed on the outside of the waist member continuous body 6 of the wearing article continuous body 9.
  • a fold line 4x see partial schematic diagram (H-1)
  • the swing pad 54 releases the holding of the second region 4f of the absorbent body 4 and returns to the open position P.
  • the continuous body 9 is held and conveyed by the winding part 53, and is conveyed to a cutting device (not shown) by a conveying device (not shown) via a guide roll 58 rotated in the direction shown by an arrow 59.
  • a cutting device (not shown) cuts the continuous body of wearing articles 9 at a cutting position 9x between the absorbent bodies 5 which are folded in two adjacent to each other.
  • the first region 4b of the folded absorbent body 5 is joined to the waist member 8 at an intermediate position to form a disposable wearing article 10.
  • a cutting device is arranged to face the bi-folding drum 52, and the continuous wear article 9 being conveyed by the bi-folding drum 52 is cut by the cutting device.
  • the timing at which the bifolding drum 52 folds the absorbent main body 4 in half may be before, after, or at the same time as cutting the continuous body of waist members 6 of the continuous body of wearing articles 9.
  • the temporary fixing device 60 is disposed along the bifold drum 52, for example, and attaches the first region 4b and the second region 4f of the bifold absorbent body 5 to each other by heat sealing, ultrasonic sealing, or the like. Temporarily fasten. That is, the first region 4b and the second region 4f of the absorbent main body 5 are joined with such strength that they can be released when the disposable wearing article 10 is used. Instead of heat sealing, ultrasonic sealing, etc., the temporary fixing device 60 is configured to apply adhesive or apply double-sided tape to appropriate locations on the absorbent body 4 before it is folded in half. You can.
  • the temporary fixing device 60 may be omitted, if the temporary fixing device 60 is provided and temporarily fixed, the bifold state of the absorbent main body 4 is stabilized, and the bifolded absorbent main body 5 is joined. Since the wearing article continuous body 9 can be transported at a higher speed, the number of disposable wearing articles 10 manufactured per unit time can be increased.
  • the size changing device 70 adjusts the first conveying speed at which the first unit 20 conveys the continuous body of the absorbent body 4 and the second unit 40 and the third unit 50 according to the size of the disposable wearing article 10.
  • the distance between the absorbent main bodies 5 stacked on the continuous body of waistline members 6 in the second unit 40 is changed by changing one or both of the second conveyance speed at which the wrapping portion 53 conveys the continuous body of waistline members 6.
  • the size changing device 70 includes a controller that controls a servo motor that drives the wrapping portion 53 of the bi-folding drum 52 of the first unit 20, repitching device 30, second unit 40, and third unit 50.
  • the rotation speed of the servo motor is changed according to the size of the disposable wearing article 10.
  • the size changing device 70 may be omitted, if the size changing device 70 is provided, it becomes possible to accommodate different sizes of the disposable wearing article 10.
  • the bifolding drum 52 of the third unit 50 folds the absorbent body 4 into two while conveying the wearing article continuous body 9 along the cylindrical conveyance path 56. Compared to the case where the absorbent body 4 is folded in half while the wear article continuous body 9 is conveyed along a linear conveyance path, the section in which the absorbent body is folded in half can be shortened.
  • a method for manufacturing the disposable wearing article 10 will be described with reference to FIG. 3. As shown in FIG. 3, a disposable wearing article 10 is formed using the absorbent body continuous body 2 and the waist member continuous body 6.
  • the method for manufacturing the disposable wearing article 10 includes the following steps (1) to (6).
  • the absorbent main body continuous body 2 is conveyed in a first direction 2x indicated by an arrow 2x.
  • a first portion 3 that is to become an absorbent main body 4 is connected in a first direction 2x.
  • the absorbent main body 4 may be continuously formed and transported, or the absorbent main body 4 prepared in advance may be transported.
  • the trunk member continuous body 6 is conveyed in a second direction 6x indicated by an arrow 6x.
  • a second portion 7 that is to become a waistline member 8 is connected in a second direction 6x.
  • the continuous body of waist members 6 may be continuously formed and transported, or the continuous body of waist members 6 prepared in advance may be transported.
  • the absorbent body 4 is conveyed in the direction indicated by the arrow 5x, and the absorbent properties in the conveying direction 5x are adjusted so that the direction connecting both ends 4p and 4q of the absorbent body 4 is orthogonal to the conveying direction 5x of the absorbent body 4. Change the direction of the main body 4 by 90 degrees.
  • the first region 4b on the one end 4p side of the absorbent main body 4 that has been turned by 90 degrees is attached to the other end of the absorbent main body 4 to the waist member continuous body 6 that is being conveyed in the second direction 6x.
  • the first region 4b of the absorbent main body 4 is joined to the waistline member continuous body 6 by sequentially stacking them at intervals so that the second region 4f on the 4q side projects from the waistline member continuous body 6,
  • the first region 4b of the absorbent main body 4 is joined to the waist member continuous body 6 to form a wearing article continuous body 9.
  • the absorbent main body 4 and the waist member continuous body 6 are joined to each other by applying an adhesive to appropriate locations on the absorbent main body 4 and/or the waist member continuous body 6 in advance.
  • the absorbent main body 4 and the waist member continuous body 6 may be joined to each other by heat sealing, ultrasonic sealing, or the like.
  • the winding part 53 moves along the cylindrical conveyance path 56
  • the winding part 53 moves along the conveyance path 56 in the axial direction of the conveyance path 56. It oscillates between an open position P where it is lined up and a closed position Q where it faces the winding part 53 in the radial direction of the transport path 56 across the transport path 56, and along with the winding part 53, it moves along the cylindrical transport path 56.
  • Second cutting step While conveying the continuous body of wearing articles 9, the continuous body of waist members 6 of the continuous body of wearing articles 9 is cut at the cutting position 9x between the absorbent main bodies 4 or 5 that are adjacent to each other. .
  • the order of the folding process and the second cutting process is arbitrary.
  • the second cutting process may be performed after the bifolding process, the bifolding process may be performed after the second cutting process, or the bifolding process and the second cutting process may be performed simultaneously. May be executed.
  • the second cutting process may be started before the end of the two-folding process, or the two-folding process may be started before the end of the second cutting process.
  • a disposable wearing article 10 in which the first region 4b of the absorbent main body 5 folded in half is joined to the intermediate position of the waist member 8 is formed.
  • Hook-and-loop fasteners may be provided in the vicinity of both ends 8a, 8b of the waist member 8 of the disposable wearing article 10 for joining to the second region 4f of the absorbent main body 5 folded in two.
  • the hook-and-loop fastener may be provided in advance on the waist member continuous body 6, or may be provided on the disposable wearing article 10 after being cut.
  • Other attached members may be provided in advance on the absorbent body continuous body 2 and/or the waist member continuous body 6, or may be provided on the disposable wearing article 10 after being cut.
  • the absorbent body 4 Since the absorbent body 4 is folded in half while the continuous wear article 9 to which the absorbent body 4 is joined is transported along the cylindrical conveyance path 56, the wear article to which the absorbent body 4 is joined is folded. Compared to the case where the absorbent body 4 is folded in half while the continuous body 9 is conveyed along a linear conveyance path, the section in which the absorbent body 4 is folded in half can be shortened.
  • the method for manufacturing the disposable wearing article 10 may further include any one or more of the following steps (7) to (9).
  • Temporary fixing step The first region 4b and second region 4f of the absorbent main body 5 folded in half are temporarily fixed to each other. For example, after the absorbent main body 4 is folded in half, appropriate parts of the folded absorbent main body 5 are temporarily fixed by heat sealing, ultrasonic sealing, or the like. Alternatively, the absorbent body 4 may be temporarily fixed by applying an adhesive or pasting double-sided tape to appropriate locations on the absorbent body 4 before being folded in half. Since the folded state is stabilized when temporarily fastened, the wear article continuous body 9 to which the folded absorbent body 5 is joined can be transported at a higher speed, and the number of disposable wear articles manufactured per unit time can be increased. I can do it.
  • the wrapping portion and/or the swinging unit of the third unit may hold the second region of the waist member continuous body and/or the absorbent main body of the wearing article continuous body by a method other than suction by negative pressure. You can.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Epidemiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Botany (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2023/015682 2022-05-13 2023-04-19 使い捨て着用物品の製造方法および装置 Ceased WO2023218888A1 (ja)

Priority Applications (4)

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CN202380035133.XA CN119053303A (zh) 2022-05-13 2023-04-19 用于制造一次性可穿戴物品的方法和装置
EP23803370.8A EP4494619B1 (en) 2022-05-13 2023-04-19 Method and device for manufacturing disposable wearable article
JP2024520339A JPWO2023218888A1 (https=) 2022-05-13 2023-04-19
US18/855,321 US20250325410A1 (en) 2022-05-13 2023-04-19 Method and device for manufacturing disposable wearable article

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JP2022079835 2022-05-13

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2851784B2 (ja) 1993-12-29 1999-01-27 株式会社瑞光 折畳み装置
JP4920424B2 (ja) 2004-12-24 2012-04-18 株式会社瑞光 使い捨て着用物品の製造方法
WO2014176007A1 (en) * 2013-04-26 2014-10-30 The Procter & Gamble Company Methods and apparatuses for assembling disposable diaper pants
WO2019142691A1 (ja) * 2018-01-16 2019-07-25 株式会社瑞光 使い捨て着用物品の製造方法および製造装置
JP6903810B1 (ja) * 2020-12-01 2021-07-14 株式会社瑞光 着用物品の製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2851784B2 (ja) 1993-12-29 1999-01-27 株式会社瑞光 折畳み装置
JP4920424B2 (ja) 2004-12-24 2012-04-18 株式会社瑞光 使い捨て着用物品の製造方法
WO2014176007A1 (en) * 2013-04-26 2014-10-30 The Procter & Gamble Company Methods and apparatuses for assembling disposable diaper pants
WO2019142691A1 (ja) * 2018-01-16 2019-07-25 株式会社瑞光 使い捨て着用物品の製造方法および製造装置
JP6903810B1 (ja) * 2020-12-01 2021-07-14 株式会社瑞光 着用物品の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4494619A4

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EP4494619C0 (en) 2025-11-05
EP4494619A4 (en) 2025-07-16
JPWO2023218888A1 (https=) 2023-11-16
US20250325410A1 (en) 2025-10-23
CN119053303A (zh) 2024-11-29
EP4494619B1 (en) 2025-11-05

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