WO2018117091A1 - 吸収性物品の製造方法 - Google Patents

吸収性物品の製造方法 Download PDF

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Publication number
WO2018117091A1
WO2018117091A1 PCT/JP2017/045495 JP2017045495W WO2018117091A1 WO 2018117091 A1 WO2018117091 A1 WO 2018117091A1 JP 2017045495 W JP2017045495 W JP 2017045495W WO 2018117091 A1 WO2018117091 A1 WO 2018117091A1
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WO
WIPO (PCT)
Prior art keywords
tape member
absorbent article
exterior sheet
tape
exterior
Prior art date
Application number
PCT/JP2017/045495
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
良夫 矢野
直人 井上
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201780079409.9A priority Critical patent/CN110099654B/zh
Priority to TW106145098A priority patent/TWI736725B/zh
Publication of WO2018117091A1 publication Critical patent/WO2018117091A1/ja

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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
    • A61F13/551—Packaging before or after use

Definitions

  • the present invention relates to a method for producing an absorbent article having a post-processing tape member.
  • Patent Literature 1 and Patent Literature 2 disclose an absorbent article having a tape member for post-processing.
  • the tape member of patent document 1 and patent document 2 is attached to the exterior sheet located in the non-skin opposing surface of an absorbent article.
  • the user can fold the absorbent article after use by stopping the tape member on the absorbent article exterior sheet in a state in which the absorbent article is folded so that the exterior sheet of the absorbent article is positioned outside. (For example, refer to FIG. 6 of Patent Document 1).
  • the tape member can be fixed to the exterior sheet of the absorbent article with an adhesive or the like.
  • a plurality of constituent members constituting the absorbent article such as an absorbent body and a surface sheet are arranged. Therefore, when the tape member is pressed toward the skin facing surface side of the absorbent article in order to fix the tape member, the constituent members such as the absorbent body positioned on the skin facing surface side of the exterior sheet are deformed, and the tape member and the exterior The sheet may not adhere sufficiently. For this reason, a sufficient bonding force between the tape member and the exterior sheet cannot be obtained, and the tape member may be detached when the tape member is used (discarded).
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to manufacture an absorbent article that can increase the bonding force between a post-processing tape member and an exterior sheet and can prevent the tape member from being detached at the time of disposal.
  • the manufacturing method of the absorbent article which concerns on this indication is the absorber (absorber 30), the surface sheet (surface sheet 20) located in the skin opposing surface side (skin opposing surface side T1) of the said absorber, and the said absorption.
  • An absorbent article having an exterior sheet (exterior sheet 22) positioned on the non-skin facing surface side of the body and a post-processing tape member (tape member 60) fixed to the non-skin facing surface of the exterior sheet.
  • It is a manufacturing method, Comprising: It has a tape fixing step (tape fixing step S1) which fixes the said tape member on the said exterior sheet, conveying the said exterior sheet along a conveyance direction,
  • the said tape fixing step is the said exterior
  • the tape member is brought into contact with the non-skin facing surface of the exterior sheet in a state where the skin facing surface of the sheet is in contact with the transport surface (transport surface 102A) of the transport device (second roll 102).
  • the above Fixed on the non-skin facing surface of the instrumentation sheet.
  • FIG. 2 is a cross-sectional view of the absorbent article along the line AA shown in FIG. It is a perspective view of an absorptive article in the state where it was rolled up in the direction of order. It is a figure for demonstrating the tape fixing step of the manufacturing method of an absorbent article. It is a figure for demonstrating the manufacturing method of an absorbent article. It is a figure for demonstrating an outer edge joining step. It is a figure for demonstrating the tape fixing step of the manufacturing method of the absorbent article in the modification 1. It is a partial rear view of the absorbent article in the modification 2. It is a partial rear view of the absorbent article in the modification 3.
  • the top sheet positioned on the skin facing surface side of the absorbent body
  • the exterior sheet positioned on the non-skin facing surface side of the absorbent body
  • the step is to bring the tape member into contact with the non-skin facing surface of the exterior sheet in a state where the skin facing surface of the exterior sheet is in contact with the transport surface of the transport device, and to attach the tape member to the non-skin facing surface of the exterior sheet
  • a manufacturing method of such an absorbent article wherein after the tape fixing step, a laminating step of laminating the exterior sheet, the absorber and the top sheet, and after the laminating step, at least at an outer edge of the absorbent article It is preferable that the outer edge joining step forms an outer edge joining portion for joining the topsheet and the exterior sheet, and the outer edge joining portion is provided on at least a part of the tape member.
  • the bonding force between the outer sheet and the tape member can be increased.
  • the outer edge joining step may be performed by setting the length in the width direction of the outer edge joined portion located on the rear side of the front-rear direction center of the absorbent article, before and after the absorbent article.
  • the outer edge joint portion is provided so as to be longer than the length in the width direction of the outer edge joint portion located on the front side of the center in the direction, and the tape fixing step includes attaching the tape member to a rear end portion of the absorbent article. It is desirable to fix.
  • the region where the outer edge joint portion is provided has a higher rigidity than the region where the top sheet and the exterior sheet are joined and no outer edge joint portion is provided. Therefore, the rigidity of the region on the rear side of the center in the front-rear direction of the absorbent article is higher than the rigidity of the region on the front side of the center.
  • the tape fixing step joins the tape member onto an exterior continuum in which the exterior sheet is continuous, and the lamination step includes a surface continuum in which the surface sheet is continuous, And laminating the exterior continuum and the absorbent to form an article continuum, and after the laminating step, cutting the article continuum along an outer edge of each absorbent article, and the tape
  • the tape member is disposed inside the outer edge of the absorbent article.
  • the cutting step generally cuts the outer edge of the absorbent article using a cutting blade.
  • the tape member may be pulled by the cutting blade, or the tape member may flutter when the cutting blade is separated from the tape member.
  • positioning a tape member inside the outer edge of an absorbent article it can suppress that a tape member flutters unintentionally at the time of a cutting
  • a method for manufacturing such an absorbent article comprising: a transport step for transporting the exterior sheet after the tape fixing step, wherein the transport step is opposed to the transport surface of the transport device and the skin of the exterior sheet. It is desirable to convey the exterior sheet with the surfaces facing each other.
  • the tape member is not disposed between the exterior sheet and the conveyance surface, it is possible to suppress a problem that the tape member is unintentionally deformed by being sandwiched between the exterior sheet and the conveyance surface. Unintentional deformation of the tape member can be suppressed, and the bonding force between the tape member and the exterior sheet can be maintained.
  • the exterior sheet, the topsheet, and at least one constituent member of the absorber are adsorbed by the adsorbing means of the transport device. It is desirable that the suction step transports the exterior sheet with the skin facing surface of the exterior sheet facing the suction means side of the transport device.
  • the surface located on the suction means side is subjected to a force in a direction approaching the suction means side at the start of suction, and a force in a direction away from the suction means at the time of suction release. Since the tape member is not attached to the surface located on the suction means side, a force that the tape member is attracted to the suction means side by the suction means or the tape member is separated from the suction means side acts on the tape member. This can be suppressed. It is possible to suppress the tape member from being pulled in a direction away from the exterior sheet by suction of the adsorbing means, and it is possible to suppress a decrease in the bonding force between the tape member and the exterior sheet.
  • the tape fixing step may include joining the exterior sheet and the tape member at a fixed portion that is a part of a region where the tape member and the exterior sheet overlap, and at a non-fixed portion. It is desirable to arrange the tape member on the exterior sheet so as to be separable.
  • the non-fixed part is not joined to the exterior sheet and can be picked by the user at the time of disposal. It is possible to prevent the user from accidentally pulling the fixing portion during the operation of the tape member and peeling off the fixing portion from the exterior sheet or weakening the bonding force between the tape member and the exterior sheet. Therefore, the malfunction which a tape member remove
  • the tape fixing step is provided with the fixing portion on the downstream side in the transport direction with respect to the non-fixing portion.
  • the fixed part Since the fixed part is located downstream of the non-fixed part in the transport direction, it is difficult for the non-fixed part to be swung from the fixed part during transport. It can suppress that a fixed part is pulled in the direction which leaves
  • the tape fixing step fixes the tape member to the exterior sheet with a bonding force lower than that of the fixing portion in the temporary fixing portion that is a part of the non-fixing portion. It is desirable.
  • the temporary fixing portion By providing the temporary fixing portion, it is possible to suppress the tape member from flapping or unintentionally deforming in a region other than the fixing portion. Moreover, since the joining force of the temporarily fixing part is weaker than the joining force of the fixing part, the temporarily fixing part can be easily peeled from the exterior sheet when the tape member is used. Therefore, the user can operate the tape member by grasping the non-fixed portion at the time of disposal.
  • a non-skin facing surface of the exterior sheet covers an adhesive portion for preventing a shift of the absorbent article with respect to a worn article, and the adhesive portion It is desirable to have the adhesion part arrangement
  • the tape member, the adhesive part, and the release sheet are all provided on the non-skin facing surface of the exterior sheet, and may be arranged close to each other.
  • the tape fixing step before the adhesive portion arranging step, even if the release sheet and the tape member overlap due to an attachment error during manufacturing, the tape member does not overlap the release sheet, and the tape member Fixed to the non-skin facing surface of the exterior sheet. Therefore, when peeling a peeling sheet in order to use an absorbent article, it can prevent that a tape member peels and can use a tape member at the time of disposal of an absorbent article.
  • Examples of the absorbent article manufactured by the method for manufacturing an absorbent article include sanitary napkins, panty liners, disposable diapers, and absorbent pads.
  • sanitary napkins sanitary napkins
  • panty liners disposable diapers
  • absorbent pads absorbent pads.
  • a manufacturing method for manufacturing a sanitary napkin will be described.
  • FIG. 1 is a rear view (a plan view seen from the non-skin facing surface side) of an absorbent article manufactured according to the present embodiment.
  • FIG. 2 is a sectional view taken along line AA shown in FIG.
  • the absorbent article has a front-rear direction L and a width direction W.
  • the front-rear direction L is a direction extending from the front side (abdomen side) of the wearer to the rear side (back side), or a direction extending from the rear side of the wearer to the front side.
  • the width direction W is a direction orthogonal to the front-rear direction L.
  • the absorbent article 10 includes a top sheet 20, an exterior sheet 22, and an absorbent body 30 between the top sheet 20 and the exterior sheet 22.
  • the top sheet 20 is disposed on the skin-facing surface side T1 of the absorber and faces the wearer's skin during use.
  • the exterior sheet 22 is arrange
  • the absorbent body 30 extends along the front-rear direction L of the absorbent article 10.
  • the absorbent article 10 may have a hip flap 50.
  • the hip flap 50 is a portion that swells outward in the width direction W from the outer edge of the absorbent body 30 on the rear side of the absorbent article.
  • the absorbent article may have a wing. The wing is folded back to the non-skin facing surface side of the crotch portion of the wearing article during use.
  • the hip flap 50 is a portion that swells in the width direction W behind the wing.
  • the absorbent article 10 has an excretion opening facing area R1 that faces the excretion opening (for example, vaginal opening) of the wearer during use.
  • the excretion opening facing area R1 is an area disposed between the wearer's inseam, that is, between the wearer's legs, and corresponds to an area where the absorber 30 is present.
  • the excretion opening facing area R1 is between wings and corresponds to a region where the absorber 30 is present.
  • the absorbent article 10 has an adhesive portion 70 provided on the non-skin facing surface side T2 of the exterior sheet 22.
  • the adhesive part 70 is an area provided with an adhesive for preventing the absorbent article 10 from shifting from the worn article.
  • the adhesive portion 70 is provided in a region overlapping the absorber 30 in the thickness direction T of the absorbent article 10.
  • the adhesive portion 70 extends in the front-rear direction L, and a plurality of the adhesive portions 70 may be provided at intervals in the width direction W.
  • the adhesive part 70 is covered with a release sheet 71.
  • the release sheet 71 protects the adhesive portion 70 so that the adhesive portion 70 does not deteriorate before use of the absorbent article 10.
  • the area of the release sheet 71 is larger than the area of the adhesive part 70 in order to cover the entire adhesive part 70.
  • an outer edge joint portion 35 is formed by joining at least the top sheet 20 and the exterior sheet 22.
  • An outer edge joint portion 35 is formed along the outer edge of the absorbent article 10.
  • the width direction length L2 of the outer edge joint portion located on the rear side of the center in the front-rear direction of the absorbent article is the length in the width direction of the outer edge joint portion located on the front side of the front-rear direction center of the absorbent article. Longer than L1.
  • the length in the width direction of the outer edge joint portion is the maximum width of the outer edge joint portion, and is the distance between the outer edges of the outer edge joint portions that are spaced apart from each other on the left and right.
  • the absorbent article 10 has a post-processing tape member 60 fixed to the non-skin facing surface side T2 of the exterior sheet 22.
  • the tape member 60 is hidden by the absorbent article 10 when viewed from the skin facing surface side T1.
  • the tape member 60 is attached to the adhesive part 70 in a state where the absorbent article 10 is rolled, and is used for maintaining the absorbent article after use in a folded state.
  • the tape member 60 has a fixed portion 62 fixed to the exterior sheet 22 and a non-fixed portion 63 that can be separated from the exterior sheet 22.
  • the fixing part 62 is provided on the end edge in the longitudinal direction of the tape member 60, and is arranged closer to the rear end edge 10 ⁇ / b> R of the absorbent article than the non-fixing part 63.
  • the longitudinal direction of the tape member 60 of the present embodiment is along the front-rear direction L of the absorbent article.
  • the tape member 60 is disposed in a region that does not overlap the adhesive portion 70 in the thickness direction.
  • the tape member 60 is disposed in a region that does not overlap the release sheet 71.
  • the tape member 60 may be disposed in a region overlapping with the release sheet 71.
  • flapping of the non-fixed portion 63 can be suppressed by covering the non-fixed portion 63 of the tape member 60 with the release sheet 71.
  • the user wraps the absorbent article 10 in the front-rear direction L so that the skin facing surface side T1 of the absorbent article 10 is inside after using the absorbent article 10, and then grasps the non-fixed part 63 to fix the fixed part.
  • the non-fixed portion 63 is folded back toward the rear side with reference to 62.
  • the non-skin facing surface of the non-fixed portion 63 in a state before being folded is opposed to the adhesive portion 70 of the absorbent article in a rolled state.
  • the absorbent article 10 can be maintained in a rolled state as shown in FIG.
  • the user can place the absorbent article 10 after use in a small space near one end in a state of being rolled up. Therefore, the user can attach the new absorbent article 10 to a wearing article such as underwear, wear the underwear or clothes, and then discard the used absorbent article 10 in a trash can or the like. In addition, in a situation where there is no trash box nearby to dispose of the absorbent article 10, the user can take the absorbent article 10 that has been rolled up into a bag and take it home.
  • the tape member 60 is configured to extend outward from the outer edge of the absorbent article 10.
  • at least a part of the non-fixed portion 63 extends outward from the outer edge of the absorbent article 10 by folding the non-fixed portion 63 with the fixed portion 62 as a base point.
  • the tape member 60 may be comprised from the elastic sheet. In this case, when the wearer pulls the tape member 60, the tape member 60 extends outward from the outer edge of the absorbent article 10.
  • the tape member 60 may be composed of a sheet folded in a Z shape. In this case, when the wearer pulls the tip of the tape member 60, the folded tape member 60 is developed, and thereby the tape member 60 extends outside the outer edge of the absorbent article 10.
  • the tape member 60 is provided on the non-skin facing surface side of the exterior sheet 22 and does not extend outward from the outer edge of the absorbent article 10. Does not directly hit the person's skin. Accordingly, it is possible to reduce discomfort and discomfort during use.
  • the tape member 60 may be made of any material as long as it can be attached to the adhesive portion 70.
  • the tape member 60 is made of a material that is more easily adhered to the adhesive portion 70 than the top sheet 20, and can be exemplified by a plastic film, for example.
  • the tape member 60 of the present embodiment may not have an adhesive for stopping the tape member at the time of disposal.
  • the tape member 60 may have an adhesive for stopping the tape member 60 in the adhesive portion.
  • the tape member 60 is arrange
  • the rear end portion of the absorbent article 10 is a portion from the rear end edge 10R of the absorbent article 10 to 15% of the length of the absorbent article in the front-rear direction. About 80% of users start winding the absorbent article 10 after use from the front side.
  • the tape member 60 can be attached to the adhesive portion 70.
  • the adhesive part 70 is preferably provided on an imaginary line obtained by extending the tape member 60 in the front-rear direction L. Accordingly, when the tape member 60 is extended to the rear side of the rear end edge 10 ⁇ / b> R of the absorbent article, and the tape member 60 is straight along the wound absorbent article 10, the adhesive portion 70 adheres to the tape member 60. To do. Therefore, the user can easily maintain the absorbent article 10 in a rolled state without pulling the tape member 60 obliquely toward the position of the adhesive portion 70.
  • the manufacturing method of the absorbent article includes at least a tape fixing step S1, a lamination step S2, an outer edge joining step S3, an adhesive portion arranging step S4, a cutting step S5, a conveying step S7, and an adsorption step S8.
  • the manufacturing method of an absorbent article may have known manufacturing steps such as a step of forming an absorbent body and a step of embossing the absorbent body and the like in addition to the steps described above.
  • an exterior continuum 22C in which the exterior sheet 22 is continuous in the front-rear direction L and a surface continuum 20C in which the topsheet 20 is continuous in the front-rear direction L are used.
  • the exterior continuum 22 ⁇ / b> C constitutes the exterior sheet 22, and the skin facing surface 23 of the exterior continuum 22 ⁇ / b> C corresponds to the skin facing surface of the exterior sheet 22.
  • the surface continuous body 20 ⁇ / b> C constitutes the surface sheet 20, and the skin facing surface of the surface continuous body 20 ⁇ / b> C corresponds to the skin facing surface of the top sheet 20.
  • FIG. 4 is a diagram for explaining the tape fixing step S1, which is a part of the manufacturing apparatus 100 for the absorbent article 10 and schematically shows a mechanism for executing the tape fixing step S1.
  • the manufacturing apparatus 100 includes a pair of first rolls 101 and second rolls 102 that are disposed so that their outer peripheral surfaces face each other.
  • the first roll 101 cuts the tape continuous body 60C into a tape member 60 for one product (S12) while conveying the tape continuous body 60C in which the tape member 60 is continuous in the front-rear direction L (S11).
  • the second roll 102 has a conveyance surface 102A that abuts against the skin facing surface 23 of the exterior continuum 22C.
  • the rigidity of the conveyance surface 102A is higher than the rigidity of the absorbent article. Examples of the material of the conveyance surface 102A include metal, plastic, and rubber.
  • the skin facing surface 23 of the exterior continuum 22 ⁇ / b> C is brought to the transport surface 102 ⁇ / b> A of the manufacturing apparatus 100 by passing the exterior continuum 22 ⁇ / b> C and the tape member 60 between the first roll 101 and the second roll 102.
  • the tape member 60 is brought into contact with the non-skin facing surface 24 of the exterior continuum 22C, and the fixing portion 62 of the tape member 60 is fixed on the non-skin facing surface 24 of the exterior continuum 22C (S14). ).
  • the constituent members of the absorbent article 10 such as the absorbent body 30 are not disposed on the skin facing surface 23 side of the exterior continuum 22C.
  • the tape member 60 and the exterior continuum 22C are pressed toward each other in a state where the tape member 60 is in contact with the non-skin facing surface 24 of the exterior continuum 22C, the skin facing surface 23 side of the exterior continuum 22C is deformed.
  • the exterior continuum 22C and the tape member 60 are likely to be in close contact with each other. Therefore, the bonding force between the tape member 60 and the exterior continuum 22 ⁇ / b> C can be increased, and a problem that the tape member 60 is peeled off from the exterior sheet 22 when the tape member 60 is used can be suppressed.
  • the tape member 60 and the exterior continuous body 22C should just be arrange
  • the tape member 60 is fixed to the exterior continuous body 22C at the fixing portion 62 that is a part of the region where the tape member 60 and the exterior continuous body 22C overlap, and the tape member 60 can be separated at the non-fixed portion 63. It arrange
  • the non-fixed portion 63 is not joined to the exterior sheet 22 and can be picked by the user at the time of disposal. It is possible to prevent the user from accidentally pulling the fixing portion 62 when operating the tape member 60 and peeling the fixing portion 62 from the exterior sheet 22 or weakening the bonding force between the tape member 60 and the exterior sheet 22. Therefore, the malfunction which the tape member 60 remove
  • the fixing portion 62 of the tape member 60 is fixed to the exterior continuum by, for example, an adhesive, embossing, heat welding, and ultrasonic welding.
  • an adhesive is applied to the tape member 60, and the fixing portion 62 of the tape member 60 is fixed to the exterior continuum 22C by the adhesive.
  • the fixing unit 62 is provided on the downstream side in the transport direction from the non-fixing unit 63. Since the fixed portion 62 is located downstream of the non-fixed portion 63 in the transport direction, the non-fixed portion 63 is difficult to roll around the fixed portion 62 during transport, and the fixed portion 62 becomes the exterior continuum 22C due to the twisting of the tape member 60. It is possible to prevent the tape member 60 and the exterior continuum 22C from being deteriorated in strength.
  • the tape fixing step S1 fixes the tape member 60 inside the outer edge of the absorbent article at the rear end of the absorbent article.
  • the region where the outer edge joint portion 35 is provided has higher rigidity than the region where the outer edge joint portion 35 is not provided. Since the length L2 in the width direction of the outer edge joint portion located on the rear side is longer than the length L1 in the width direction of the outer edge joint portion located on the front side, the rigidity of the rear end portion of the absorbent article is the absorbent article. It is higher than the rigidity of the front end.
  • the lamination step S2 the exterior continuum 22C, the absorbent body 30 and the surface continuum 20C are laminated to form an article continuum.
  • the stacking step S2 is located downstream in the transport direction MD of the tape fixing step S1.
  • FIG. 6 is a view for explaining the outer edge joining step, which is a part of the manufacturing apparatus 100 for the absorbent article 10 and schematically showing a mechanism for executing the outer edge joining step S3.
  • the manufacturing apparatus 100 has a pair of embossing rolls 107 and anvil rolls 108 that are arranged so that their outer peripheral surfaces face each other.
  • a protruding portion 107A for forming an outer edge joint portion is formed on the outer peripheral surface of the embossing roll 107.
  • the outer edge joined portion 35 may be formed in a state where the surface continuous body 20C is positioned on the embossing roll 107 side and the exterior continuous body 22C is positioned on the anvil roll side. As shown in FIG. 6, unevenness is formed on the skin facing surface of the outer edge joint portion 35. The non-skin facing surface of the outer edge joint portion 35 is flatter than the skin facing surface of the outer edge joint portion 35.
  • the outer edge joint portion 35 with the surface continuous body 20C positioned on the embossing roll 107 side and the exterior continuous body 22C positioned on the anvil roll 108 side, the entire surface in contact with the anvil roll 108 is taped.
  • the member 60 and the exterior continuum 22C are pressed, and the tape member 60 and the exterior continuum 22C are more easily brought into close contact with each other. Therefore, the bonding force between the exterior sheet and the tape member 60 can be further increased.
  • the length L2 in the width direction of the outer edge joined portion 35 located on the rear side of the center in the front-rear direction of the absorbent article is located on the front side of the center in the front-rear direction of the absorbent article.
  • the outer edge joint portion 35 is provided so as to be longer than the length L1 of the outer edge joint portion 35 in the width direction.
  • the outer edge joining portion 35 is provided so as to overlap at least a part of the fixing portion 62. Since the outer sheet 22 and the tape member 60 can be further bonded by the outer edge bonding portion 35, the bonding force between the outer sheet 22 and the tape member 60 can be increased.
  • the non-skin facing surface 24 of the exterior continuum 22C is provided with an adhesive part 70 for preventing the absorbent article 10 from shifting with respect to the worn article, a release sheet 71 covering the adhesive part 70, and Is provided.
  • the adhesive portion arranging step S4 may be on the downstream side in the transport direction with respect to the tape fixing step S1, may be on the upstream side in the transport direction with respect to the stacking step S2, or on the upstream side in the transport direction with respect to the outer edge joining step S3. May be.
  • the tape member 60, the adhesive part, and the release sheet are all provided on the non-skin facing surface of the exterior sheet, and may be arranged close to each other.
  • the tape member 60 is fixed on the release sheet 71 even when the release sheet 71 and the tape member 60 are overlapped due to an attachment error during manufacturing.
  • the tape member 60 is not fixed to the non-skin facing surface 24 of the exterior sheet 22. Therefore, when peeling sheet 71 is peeled off in order to use an absorptive article, tape member 60 can be prevented from peeling and tape member 60 can be used at the time of disposal.
  • the release sheet is peeled off so that the release sheet covers at least a part of the non-fixed portion 63.
  • a sheet 71 may be disposed. It can suppress that the non-fixed part 63 of the tape member 60 flutters at the time of conveyance, and can suppress that the tape member 60 is unintentionally rolled or broken. It is possible to suppress the force in the direction away from the exterior continuum from acting on the tape member 60 due to, for example, the tape member 60 being twisted during conveyance, and to maintain the bonding force of the tape member 60.
  • the cutting step S5 the article continuum is cut along the outer edge of each absorbent article.
  • the cutting step S5 may be on the downstream side in the transport direction with respect to the stacking step S2 and the outer edge joining step S3, and may be on the upstream side in the transport direction with respect to the adhesive portion arranging step S4.
  • the cutting step S5 generally cuts the outer edge of the absorbent article using a cutting blade.
  • the tape member 60 may be pulled by the cutting blade, or the tape member 60 may flutter when the cutting blade is separated from the tape member 60. Since the tape member 60 is arranged inside the outer edge of the absorbent article, the tape member 60 can be prevented from flapping unintentionally at the time of cutting, and the bonding force between the tape member 60 and the exterior sheet 22 can be maintained.
  • the manufacturing method of an absorbent article has conveyance step S7 which conveys an exterior continuum after tape fixing step S1.
  • the transport step S7 in this embodiment is a step after the rotation of the exterior continuum located on the downstream side in the transport direction of the tape fixing step S1, and is a stacking step S2, an outer edge joining step S3, an adhesive portion arranging step S4, and a cutting step S5. It is a step including.
  • the exterior continuum with the skin facing surface disposed on the upper side in the tape fixing step S1 is rotated 180 degrees and disposed on the non-skin facing surface upper side of the exterior continuum.
  • the exterior continuum 22C may be transported in a state where the transport surface (a suction surface 105A described later) of the transport device and the skin facing surface 23 of the exterior continuum 22C face each other. Since the tape member 60 is not disposed between the exterior continuum 22C and the transport surface, it is possible to suppress a problem that the tape member 60 is unintentionally deformed by being sandwiched between the exterior continuum 22C and the transport surface. Unintentional deformation of the tape member 60 can be suppressed, and the bonding force between the tape member 60 and the exterior sheet 22 can be maintained.
  • the transport surface a suction surface 105A described later
  • the manufacturing method of an absorbent article does not include the step of rotating the exterior continuum 22C, and in the entire step after the tape fixing step S1, the transport surface (the suction surface 105A) of the transport device and the skin of the exterior continuum 22C.
  • the exterior continuum 22 ⁇ / b> C may be transported with the facing surface 23 facing.
  • the manufacturing method of an absorbent article has adsorption
  • the manufacturing apparatus that executes the stacking step S2, the outer edge joining step S3, the adhesive portion arranging step S4, and the cutting step S5 includes an adsorption unit 105. Specifically, it has an adsorption surface 105A in which a plurality of adsorption holes 105B are formed, and conveys the constituent members on the adsorption surface 105A in the conveyance direction. Therefore, the stacking step S2, the outer edge joining step S3, the adhesive portion arranging step S4, and the cutting step S5 constitute an adsorption step S8.
  • the suction step S8 transports the front sheet with the skin facing surface of the exterior sheet facing the suction means 105 side of the transport device.
  • a force in a direction approaching the adsorption means side is applied to the surface located on the adsorption means side, and a force in a direction away from the adsorption means is applied when the adsorption is released.
  • the longitudinal direction of the tape member 60 is along the transport direction, a fixing portion 62 is provided on one end side in the longitudinal direction of the tape member 60, and a non-fixing portion 63 is provided on the other end side in the longitudinal direction of the tape member 60.
  • the other end side in the longitudinal direction of the tape member 60 may flutter due to the suction of the suction means, and a force may be applied to peel off the fixing portion 62 on the one end side from the exterior sheet. Since the tape member 60 is not attached to the surface located on the suction means side, the force that causes the tape member 60 to be pulled toward the suction means side by the suction means or the tape member 60 to be separated from the suction means side is the tape member. It can suppress acting on 60. It is possible to suppress the tape member 60 from being pulled away from the exterior sheet by suction of the adsorbing means, and to prevent the non-fixed portion 63 from flapping, thereby suppressing a decrease in the bonding force between the tape member 60 and the exterior sheet.
  • FIG. 7 is a view for explaining a method for manufacturing an absorbent article according to Modification 1.
  • the tape member 60A is transported and unfixed in a state where the non-fixed portion 63 of the tape member 60A is positioned downstream of the fixed portion 62 in the transport direction.
  • the temporary fixing portion 64 which is a part of the portion 63, the exterior continuum 22C and the tape member 60A are fixed with a bonding force weaker than that of the fixing portion 62.
  • the non-fixed portion 63 of the tape member 60A is located on the upstream side in the transport direction, and the non-fixed portion 63 is based on the fixed portion 62 during transport. Easy to drown.
  • the temporary fixing portion 64 it is possible to prevent the non-fixing portion 63 from being twisted during transportation or flapping of the non-fixing portion 63 of the tape member 60A. It is possible to prevent the force in the direction away from the exterior sheet 22 from acting on the tape member 60A due to the twist of the tape member 60A during conveyance, and maintain the state in which the tape member 60A is fixed to the exterior continuum 22C.
  • the bonding force of the temporary fixing portion 64 is weaker than the bonding force of the fixing portion 62, the user easily peels off the temporary fixing portion 64 when using the tape member 60A, and grasps the non-fixed portion 63 to operate the tape member 60A. can do.
  • fixing means for the temporary fixing portion 64 include adhesive, embossing, thermal welding, and ultrasonic welding. The amount of adhesive applied is smaller than that of the fixing portion 62, or embossing is compressed more than the fixing portion 62. Can be weakened.
  • the bonding force can be measured with a tensile tester (manufactured by Instron Japan Company Limited, model No. 5543).
  • the bonding force is measured as follows. First, the test piece of the tape member and the test piece of the exterior sheet are fixed to the upper fixing portion and the lower fixing portion of the tensile tester.
  • the test piece fixed to the upper fixing part and the lower fixing part has a width of 10 mm.
  • a fixing surface corresponding to the fixing portion 62 is formed between the test piece fixed to the upper fixing portion and the test piece fixed to the lower fixing portion.
  • the relative displacement rate between the upper fixed portion and the lower fixed portion of the tensile tester is set to 100 mm / min, and the maximum load point while peeling the bonded portion is defined as the bonding force (adhesive strength).
  • FIG. 8 is a partial rear view of the absorbent article 10B manufactured by the absorbent article manufacturing method according to Modification 2.
  • the outer edge junction part 35 has overlapped with at least one part of the non-fixed part 63.
  • FIG. The outer edge joint that overlaps the non-fixed portion 63 constitutes the temporary fixed portion 64.
  • the fixing portion 62 is located on the downstream side in the transport direction with respect to the non-fixing portion 63, and the non-fixing portion 63 is unlikely to be swung from the fixing portion 62 during the transport.
  • the non-fixed portion 63 of the tape member 60B is not fixed to the exterior sheet 22, and the position is not stable. Since the outer edge joint portion 35 is provided in the non-fixed portion 63 of the tape member 60B, the non-fixed portion 63 of the tape member 60B is temporarily fixed by the outer edge joint portion, the position of the non-fixed portion 63 is stabilized, and the tape member The flapping of the non-fixed portion 63 of 60B can be suppressed. It can suppress that the joining force of the fixing
  • FIG. 9 is a rear view of an absorbent article 10C manufactured by the method for manufacturing an absorbent article according to Modification 3.
  • the tape member 60D of the absorbent article according to Modification 3 has a pair of perforations 65 extending in the direction from the outer edge of the tape member 60D toward the inside of the tape member 60D.
  • the perforation 65 extends in the front-rear direction L of the absorbent article 10.
  • the pair of perforations 65 includes alternately cut portions 65A and non-cut portions 65B, and the cut portions 65A reach the outer edge of the tape member 60D.
  • a non-fixed portion 63 is provided in a region sandwiched between the pair of perforations 65, and the periphery of the non-fixed portion 63 (both outer sides in the width direction from the perforation and the rear side from the non-fixed portion 63). Is provided with a fixing portion 62. The user can operate a portion (operation portion) between the pair of perforations 65 by tearing the tape member 60 ⁇ / b> D with the pair of perforations 65.
  • the temporary fixed portion 64 may be provided on at least a part of the non-fixed portion 63. Since the fixed portion 62 is positioned upstream of the non-fixed portion 63 in the transport direction, the air that flows between the tape member 60D and the exterior sheet 22 in the non-fixed portion 63 may be difficult to escape.
  • the temporary fixing portion 64 in the non-fixing portion 63 of the tape member 60D it is possible to prevent air from flowing in between the tape member 60D and the exterior sheet 22 in the non-fixing portion 63. It becomes difficult for the tape member 60 ⁇ / b> D to be pulled in a direction away from the exterior sheet 22, and a decrease in the bonding force between the tape member 60 ⁇ / b> D and the exterior sheet 22 can be suppressed.
  • an absorbent article in the state in which the absorbent article was located in the front-back direction in another example, an absorbent article in the state in which the absorbent article was located in the width direction May be manufactured.
  • the exterior continuum and the surface continuum are used, but the exterior continuum may be replaced with an exterior sheet, and the surface continuum may be replaced with a surface sheet to produce an absorbent article. .
  • the short side direction of the tape member may be along the transport direction
  • the fixing part 62 may be provided on one end side in the longitudinal direction of the tape member
  • the non-fixing part 63 may be provided on the other end side in the longitudinal direction of the tape member.
  • both the fixed portion 62 and the non-fixed portion 63 are located downstream in the transport direction, the tape member is pulled along the short direction of the tape member and is not fixed.
  • the part 63 is easy to flutter. Therefore, it is preferable that an adsorption
  • the temporary fixing portion 64 may be provided in a region overlapping with the non-fixing portion 63. The temporary fixing portion 64 can effectively suppress flapping of the non-fixing portion 63.
  • the manufacturing method of the absorbent article may include a rotation step of rotating the absorbent article after manufacturing the individual absorbent articles.
  • the tape member may be disposed on the surface opposite to the facing surface where the absorbent article and the suction means face each other.
  • the absorbent article may move not only in the conveyance direction but also in the rotation direction, and the tape member may be pulled away from the exterior sheet during rotation.
  • a change in the air flow by the adsorbing means can be suppressed, and a decrease in the bonding force between the tape member and the exterior sheet can be effectively suppressed.
  • the longitudinal direction of the tape member is along the transport direction
  • the exterior sheet including the tape member is rotated
  • the suction is released
  • the short direction of the tape member is along the transport direction.
  • suction of the suction means acts sequentially along the longitudinal direction of the tape member
  • suction of the suction means is released sequentially along the short direction of the tape member.
  • the relative angle between the direction of the tape member and the transport direction is different at the time of starting and releasing the suction, and a force along the longitudinal direction and a force along the short direction act on the tape member. Since the tape member is not attached to the surface located on the suction means side, the force acting on the tape member by suction of the suction means can be suppressed, and the decrease in the bonding force between the tape member and the exterior sheet can be suppressed.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2017/045495 2016-12-22 2017-12-19 吸収性物品の製造方法 WO2018117091A1 (ja)

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JP2004121831A (ja) * 2002-08-06 2004-04-22 Uni Charm Corp 使い捨て着用物品の連続的製造方法
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CN110099654A (zh) 2019-08-06
TWI736725B (zh) 2021-08-21
TW201831157A (zh) 2018-09-01
JP2018102432A (ja) 2018-07-05
JP6633505B2 (ja) 2020-01-22

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