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WO2019123572A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2019123572A1
WO2019123572A1 PCT/JP2017/045732 JP2017045732W WO2019123572A1 WO 2019123572 A1 WO2019123572 A1 WO 2019123572A1 JP 2017045732 W JP2017045732 W JP 2017045732W WO 2019123572 A1 WO2019123572 A1 WO 2019123572A1
Authority
WO
WIPO (PCT)
Prior art keywords
fastening
absorbent article
tape
skin
article according
Prior art date
Application number
PCT/JP2017/045732
Other languages
English (en)
Japanese (ja)
Inventor
俊明 一萬田
Original Assignee
花王株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 花王株式会社 filed Critical 花王株式会社
Priority to JP2019559933A priority Critical patent/JP6942817B2/ja
Priority to RU2020123711A priority patent/RU2735174C1/ru
Priority to PCT/JP2017/045732 priority patent/WO2019123572A1/fr
Priority to CN201780095929.9A priority patent/CN111212622B/zh
Publication of WO2019123572A1 publication Critical patent/WO2019123572A1/fr

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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
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to an absorbent article such as a disposable diaper.
  • the absorbent body has a ventral side disposed on the ventral side of the wearer, a dorsal portion disposed on the dorsal side, and a crotch portion located therebetween.
  • the fastening member has a fastening tape provided on both side edges of the back side of the absorbent main body and fixed to the outer surface of the ventral side when worn (see, for example, Patent Document 1).
  • An absorbent article includes a main body and a fastening tape.
  • the body portion has an absorbent body and side flaps.
  • the absorbent body has a crotch, and ventral and dorsal portions respectively disposed on both sides of the crotch in the front-rear direction.
  • the side flaps have a skin-facing surface and a non-skin-facing surface, and are provided at both side edges in the width direction orthogonal to the front-rear direction of the back side.
  • the fastening tape has a flexible tape base and a fastening material. The tape base material extends outward in the width direction from the side flaps.
  • the fastening material is joined to the tape base material and includes a fastening surface that can be attached to the ventral side.
  • the fastening tape is configured to be bendable between a non-use position where the fastening surface is temporarily attached to the skin facing surface and a use position where the fastening surface is peeled from the skin facing surface.
  • the fastening material has a curved portion at least at a part of the end edge at the crotch side to separate a part of the fastening surface from the skin facing surface at the non-use position.
  • FIG. 2 is a schematic cross-sectional view cut along the line II-II in FIG. It is the principal part enlarged view which shows the form of the fastening tape of one side in the said absorbent article, (A) shows the non-use position, (B) has shown the use position, respectively. It is an enlarged view of the principal part containing the fastening tape of the absorbent article concerning the 1st embodiment of the present invention, and (A) is a top view and (B) is a schematic diagram cut by the IV-IV line in (A). Cross-sectional view.
  • the present invention relates to an absorbent article comprising a pair of fastening tapes securing the dorsal and ventral sides of the absorbent body to one another.
  • the fastening tapes are typically attached to side flaps located at both lateral edges in the width direction of the dorsal side, respectively.
  • the fastening tape has a flexible tape substrate and a fastening material (surface fastener) joined to the tape substrate, and the fastening material is attached to the non-skin opposing surface of the ventral side in use. By attaching, the dorsal side and the ventral side are mutually fixed.
  • the fastening tape is folded to the side flap side before wearing (when not in use), and the fastening surface is temporarily attached to the skin facing surface of the side flap, and the fastening material is side when wearing (in use) It peels from the flap and is spread in the width direction of the side flap.
  • a thinner and softer fastening tape is required for this type of fastening tape in order to improve the texture.
  • the fastening tape is made thinner, when the diaper is put on the wearer, it becomes difficult to peel off the fastening tape from the side flaps.
  • the present invention relates to an absorbent article capable of ensuring operability at the time of wearing while making the fastening tape thin and soft.
  • FIG. 1 is a top view which shows the unfolded state of the disposable diaper 1 which concerns on one Embodiment of this invention.
  • the disposable diaper 1 shown in FIG. 1 is in a state in which the absorbent main body 10 is extended along the XY plane.
  • the X-axis direction corresponds to the front-rear direction (longitudinal direction)
  • the Y-axis direction corresponds to the width direction.
  • Disposable diaper 1 is an absorbent article for catching without leaking the wastes of the baby who is a wearer.
  • FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG.
  • the disposable diaper (henceforth a diaper) 1 is provided with the main-body part 20 which has the absorptive main body 10 and a pair of side flap 30, and a pair of fastening tape 40. As shown in FIG.
  • the diaper 1 is a so-called spreadable panel type disposable diaper.
  • the "inside” and “skin facing surface” in each configuration refer to the side and face directed to the wearer's skin when the diaper is worn, and the “outside” and “non-skin facing surface” mean the wearer's skin And the side and the face that are directed to the opposite side (garment side).
  • “at the time of wearing” means a normal proper wearing position, that is, a state in which the correct wearing position of the absorbent article is maintained, and does not include the case where the absorbent article is deviated from the wearing position. .
  • the absorbent body 10 has a crotch portion 10M, a ventral side 10F, and a dorsal side 10R.
  • the crotch portion 10M is disposed between the crotch of the wearer at the time of wear, the ventral side 10F is disposed on the ventral side of the wearer, and the dorsal side 10R is disposed on the dorsal side of the wearer.
  • the ventral side 10F and the dorsal side 10R are respectively disposed on both sides in the front-rear direction (X-axis direction) of the crotch portion 10M via the crotch portion 10M.
  • the end side of the absorbent main body 10 located on the ventral side of the wearer when wearing corresponds to the front side
  • the end side of the absorbent main body 10 located on the dorsal side of the wearer corresponds to the rear side.
  • the ventral side portion 10F, the crotch portion 10M and the back side portion 10R correspond to respective regions when the diaper 1 is divided into approximately three equal parts in the front-rear direction (X-axis direction).
  • the absorbent main body 10 includes an absorbent body 15, a top sheet 16, a back sheet 17, and a pair of side sheets 19.
  • the top sheet 16 is a liquid-permeable sheet and is disposed inside the absorber 15.
  • the back sheet 17 is a liquid impermeable or water repellent sheet, and is disposed outside the absorber 15.
  • the back sheet 17 constitutes the exterior of the diaper 1 in a worn state.
  • the side sheets 19 are respectively disposed on the left and right sides along the front-rear direction on the surface sheet 16 side of the absorbent main body 10.
  • the absorber 15 is disposed between the top sheet 16 and the back sheet 17, and is held by the top sheet 16 and the back sheet 17.
  • the absorber 15 captures excrement and is configured to be able to absorb the liquid contained in the excrement.
  • the absorber 15 is formed in a band shape long in the front-rear direction, and is disposed in a wide range from the ventral side 10F to the dorsal side 10R through the crotch portion 10M.
  • the absorbent body 15 is configured to include a liquid-retaining absorbent core 151 and a core wrap sheet 152 covering the absorbent core 151.
  • the absorbent core 151 has an elongated shape in the front-rear direction, and extends substantially in the front-rear direction from the ventral side 10F to the dorsal side 10R through the crotch portion 10M.
  • As the absorbent core 151 a core-forming material containing an absorbent material is piled up, and a material that is usually used as a material of this type can be used without particular limitation.
  • the core wrap sheet 152 covers the entire absorbent core 151.
  • the top sheet 16 and the back sheet 17 each have a size larger than that of the absorber 15, and extend outward in the width direction from the periphery of the absorber 15, and the extension portions thereof are bonded to each other by the adhesive 62. It is done. Besides the adhesive, known bonding means such as heat sealing and ultrasonic sealing may be used.
  • top sheet 16 and the back sheet 17 various types of materials conventionally used in this type of absorbent article can be used without particular limitation.
  • various non-woven fabrics, apertured films and the like can be used as the surface sheet 16.
  • a resin film, a laminate of a resin film and a non-woven fabric, or the like can be used as the back sheet 17.
  • the back sheet 17 has, for example, a form of a liquid-impermeable film sheet alone and a form in which an exterior sheet is laminated and arranged on the outside of the film sheet.
  • the exterior sheet is, for example, a non-woven fabric.
  • the side sheet 19 has an inner edge extending in the front-rear direction and an outer edge located outward in the width direction than the inner edge and extending in the front-rear direction.
  • the inner edge of the side sheet 19 overlaps the absorber 15 and is bonded to the top sheet 16 via the adhesive 61.
  • the outer edge of the side sheet 19 extends outward in the width direction from the side edge along the longitudinal direction of the absorbent body 15, and forms the side edge 18 in the width direction of the absorbent main body 10 including the back side 1R. Do.
  • the side sheet 19 and the back sheet 17 are joined to the side panel 30 via the adhesive 63 in the width direction of the absorber 15.
  • a thread-like elastic member 12 is disposed in an extended state so as to extend in the front-rear direction through the crotch portion 10M.
  • the side sheet 19 in the crotch portion 10M is a portion functioning as a so-called leg portion disposed around the leg of the wearer when the diaper 1 is worn, and the leg portion is an elastic member when the diaper 1 is worn by this configuration.
  • the contraction of 12 forms a leg gather 13 (see FIG. 5).
  • the side panel 30 is formed of a separate member from the absorbent main body 10.
  • the side panel 30 is configured as a separate member from the fastening tape 40 and is joined between the side edges 18 of the back side 10R and the fastening tape 40.
  • the side panel 30 constitute "side flaps" provided at both lateral edges 18 in the width direction of the back side 10R.
  • the side flaps are constituted by the side panel 30 which is a separate member from the back side 10R, but the present invention is not limited thereto, and may be constituted by the same member as the back side 10R.
  • the side panel 30 is formed of an elastic sheet having stretchability in the width direction of the absorbent main body 10.
  • the side panel 30 is formed by two flat rectangular panel members 34 respectively constituting the skin facing surface 30 a and the non-skin facing surface 30 b and a plurality of linear members disposed between the two panel members 34. And an elastic member 35.
  • the plurality of elastic members 35 are arranged at predetermined intervals in the front-rear direction at the central portion in the width direction of the side panel 30.
  • Each elastic member 35 is joined between the two panel members 34 in an extended state, and forms a shirring portion 30s having a three-dimensional structure along the longitudinal direction in a natural state over the entire in-plane area of the side panel 3.
  • the arrangement portion of the elastic member 35 is an expansion and contraction portion which can expand and contract in the width direction which is the expansion direction of the elastic member 35, and the side panel 30 has elasticity in the width direction by the expansion and contraction portion.
  • Examples of the panel material 34 of the side panel 30 include non-woven fabrics made of various methods such as air through non-woven fabric, heat roll non-woven fabric, spun lace non-woven fabric, spun bond non-woven fabric, melt-portion non-woven fabric, etc. A film or the like, and a sheet material or the like obtained by laminating and integrating two or more of these can be used.
  • the fastening tape 40 is fixed to the leading end 32 of the side panel 30 so as to extend outward in the width direction of the side panel 30.
  • the fastening tape 40 is slightly biased to the rear side (the upper side in FIG. 1) than the center of the side panel 30 in the front-rear direction.
  • the fastening tape 40 has a substantially rectangular shape whose longitudinal direction is along the width direction.
  • the fastening tape 40 is configured to include a flexible tape base 44 and a hook and loop fastener 45 which is a fastening material.
  • the tape substrate 44 has a substantially rectangular shape elongated in the width direction (Y-axis direction) in plan view as shown in FIG. 1, and the outer shape of the fastening tape 40 matches the outer shape of the tape substrate 44.
  • the tape base 44 is located at the fixed end 41 fixed to the non-skin facing surface 30 b of the side panel 30 and the free end 42 opposite to the fixed end 41 in the width direction (Y-axis direction) with the surface fastener 45 interposed therebetween. And a tab portion 47.
  • the fixed end 41 is fixed to the outer surface of the tip 32 of the side panel 30 by an adhesive 64.
  • the invention is not limited to this, and known bonding means other than the adhesive may be used.
  • the fixed end 41 of the tape substrate 44 is not limited to being fixed to the non-skin facing surface 30b of the side panel 30, and may be fixed between the skin facing surface 30a of the side panel 30 and the non-skin facing surface 30b. Good.
  • the fixed end 41 of the tape base 44 is one of the panel members 34 constituting the skin facing surface 30 a of the side panel 30 and the non-skin facing surface 30 b of the side panel 30. And the other panel material 34 that constitutes the above.
  • the hook-and-loop fastener 45 is joined to the inner surface (skin facing surface) of the tape substrate 44.
  • the hook-and-loop fastener 45 has a flat rectangular shape, and is disposed in the widthwise center of the tape base 44 across the tape base 44 in the front-rear direction. That is, the hook-and-loop fastener 45 is disposed spaced from the fixed end 41 and the free end 42 of the tape substrate 44, respectively.
  • the hook and loop fastener 45 is not located, and the free end 42 is constituted by a part of the tape substrate 44.
  • the free end 42 forms a tab portion 47 which can be pinched by the operator when fastening.
  • the fastening tape 40 is configured to be attachable to the outside (non-skin facing surface) of the ventral side 10F of the absorbent main body 10 when worn.
  • the fastening tape 40 is fastened to the outside of the ventral side 10F to form a pants-shaped diaper 1 having a waist opening and a leg opening.
  • the tape base material 44 which comprises the fastening tape 40, the laminated body etc. of the nonwoven fabric which has a softness
  • a non-stretchable non-woven fabric having flexibility is used as the tape substrate 44.
  • the hook-and-loop fastener 45 has a fastening surface 45s in which a hook material constituting a male member of the mechanical hook-and-loop fastener is disposed in the plane.
  • the surface fastener 45 is bonded to the tape base 44 with an adhesive or the like on the surface opposite to the fastening surface 45 s.
  • the attachment area 11 on the outer side (non-skin facing surface) of the ventral side 10F, the attachment area 11 (see FIG. 1) in which the loop material constituting the female member of the mechanical surface fastener is disposed in the plane is formed There is.
  • the fastening area 11 is capable of detachably fastening the surface fastener 45 (fastening surface 45 s) of the fastening tape 40.
  • FIG. 3 is an enlarged view of an essential part showing the form of the fastening tape 40 on one side (right side in FIG. 1).
  • the fastening tape 40 of one side is demonstrated, the same may be said of the fastening tape 40 of the other side.
  • the fastening tape 40 has a non-use position where the fastening surface 45s of the surface fastener 45 is temporarily attached to the skin facing surface 30a of the side panel 30, as shown in FIG.
  • the fastening surface 45s is configured to be bendable between the use position in which the fastening surface 45s is peeled off from the skin facing surface 30a.
  • FIG. 4 is an enlarged view of the main part including the fastening tape 40 in the non-use position, wherein (A) is a plan view and (B) is a schematic cross-sectional view cut along the line IV-IV in (A) It is.
  • the hook and loop fastener 45 has one of the fastening surfaces 45s at the non-use position of the fastening tape 40 on at least a part of both end edges E11 and E12 in the front-rear direction (X axis direction).
  • the curved portion 40 w separates the portion from the skin facing surface 30 a of the side panel 30.
  • the surface fastener 45 has a shape curved around an axis parallel to the width direction (Y-axis direction) in the direction in which the fastening surface 45s side is convex. That is, as shown in FIG. 4B, the cross-sectional shape of the surface fastener 45 in the front-rear direction has a shape in which the fastening surface 45s is warped in a convex shape, and the curved portion 40w has both end edges of the surface fastener 45 It is provided in the whole area of E11 and E12.
  • the tape base material 44 since the tape base material 44 has flexibility, it has a curved shape that follows the shape of the surface fastener 45 at the bonding site with the surface fastener 45.
  • edge portions E11 and E12 are warped so as to partially exfoliate from the skin facing surface 30a of the side panel 30 and rise, and between the edge portions E11 and E12 and the skin facing surface 30a of the side panel 30 A gap G1 of a predetermined size is formed.
  • the fastening region of the fastening surface 45s and the side panel 30 is secured at the central portion in the front-rear direction (X axis direction) of the surface fastener 45, a stable temporary attachment state of the fastening tape 40 to the side panel 30 is secured. Be done.
  • the fastening tape 40 is in a state of being bent from the side edge of the side panel 30 toward the non-use position.
  • the fastening surface 45s of the surface fastener 45 is temporarily attached to the skin facing surface 30a of the side panel 30, and the careless deployment to the use position is prevented.
  • the tab portion 47 is not fixed to the side panel 30. Essentially, when the diaper 1 is used, the tab portion 47 is picked up by the user's finger and the surface fastener 45 is pulled off from the side panel 30.
  • the edge portion of the fastening tape 40 from the crotch portion 10M side (leg gather 13 side) so as to rub the thumb on the skin contact surface 30a of the side panel 30. It may be slid towards and the end edge of the hook-and-loop fastener 45 may be hooked onto the thumb of the thumb to pull it away from the side panel 30. At this time, if the fastening tape is thin, it will be difficult for it to be caught by the finger, so that the operation of peeling off the surface fastener 45 becomes difficult.
  • the end edges E11 and E12 of the surface fastener 45 are curved such that part of the fastening surface 45s is separated from the skin facing surface 30a of the side panel 30. It has a part 40w. Therefore, when the thumb is slid toward the fastening tape 40 on the side panel 30 as shown in FIGS. 5A and 5B, the space between the edge E11 of the surface fastener 45 and the side panel 30. The belly of the thumb is likely to be caught in the formed gap G1. Thereby, the operation of picking up the hook and loop fastener 45 is remarkably facilitated, and the smooth fastening operation of the diaper 1 can be secured.
  • the curved portion 40w described above is provided at both end edges E11 and E12 of the hook and loop fastener 45, not only the end edge E11 on the crotch 10M side but also the opposite end edge E12 The middle finger is easy to get caught. As a result, the hook and loop fastener 45 can be easily picked up not only from the front side (front side) but also from the back side (back side), so that the user's operation method to be diversified can be sufficiently coped with.
  • the fastening tape 40 can be easily pulled off from the side panel 30, the fastening tape 40 can be comprised with a thinner and soft material.
  • the sum of the thicknesses of the tape base 44 and the surface fastener 45 is, for example, 1.0 mm or less, and more preferably 0.5 mm or less. According to this embodiment, it is possible to secure the operability at the time of wearing while making the fastening tape 40 thin and soft.
  • the manufacturing method of the fastening tape 40 which has the above structures is not specifically limited, An appropriate method is employable.
  • the fastening tape 40 is typically manufactured by a roll-to-roll method. For example, while the wide sheet base material forming the tape base material 44 travels in one direction (MD direction), a band-like hook material forming the surface fastener 45 is bonded to the sheet base material. Thereafter, the fastening tape 40 is manufactured by cutting in a direction (CD direction) orthogonal to the MD direction.
  • the sheet base material is maintained at a tension higher than that of the hook material in the bonding step. Since the sheet base material shrinks more in the width direction than the hook material, the surface fastener 45 can be curved in such a shape that the fastening surface 45s side is curved in a convex shape.
  • the hook members may be attached to each other so as to be on the outer peripheral side of the sheet base. Since the radius of curvature of the hook material is larger than the thickness of the sheet substrate by the thickness of the sheet substrate, the circumferential length of the hook material is longer than the circumferential length of the sheet substrate. Also by such a method, the surface fastener 45 can be curved in such a shape that the fastening surface 45s side is curved in a convex shape.
  • the bonding of the sheet base material and the hook material is not limited to the case of using an adhesive.
  • the fastening tape 40 of this embodiment can be further configured as follows.
  • the curved portion 40w is provided at both end edges E11 and E12 of the surface fastener, but the curved portion 40w may be provided only at the end edge E11 on the crotch 10M side.
  • the magnitude of warpage of the surface fastener 45 formed by the curved portion 40w forms a gap G1 of a predetermined size or more between the edge portions E11 and E12 of the surface fastener 45 and the skin facing surface 30a of the side panel 30. If it can do, it will not be limited in particular.
  • the amount of warping D1 of the surface fastener 45 is, as schematically shown in FIG. 6A, the maximum depth of the fastening tape 40 based on the virtual line L connecting the two end edges E11 and E12. It can be defined.
  • size of curvature amount D1 is not specifically limited, Preferably, it is 1 mm or more. Thereby, the gap G1 of 1 mm or more can be formed.
  • the size of the gap G1 is not particularly limited, and can be appropriately set according to the size of the surface fastener 45, the size of the user's fingertip, etc., and is, for example, 1 mm or more and 5 mm or less.
  • the gap G1 is set to 1 mm or more and 5 mm or less, while securing good peeling workability of the surface fastener 45 as described above, a sufficient fastening area with the side panel 30 is secured and desired temporary adhesion strength is achieved. You can get
  • the thickness of the loop material (engagement layer engageable with the fastening surface 45s) constituting the attachment area 11 (see FIG. 1) of the ventral side 10F supporting the fastening tape 40 is the form of the surface fastener 45 or It is preferable to be optimized according to the amount of warpage D1.
  • the hook material of the hook-and-loop fastener 45 typically has a pin shape including a head engageable with the loop material (see, for example, FIGS. 3 and 4 of JP-A-2016-154683).
  • the thickness T of the loop material 110 is preferably 50% or more of the amount of warp D1 of the surface fastener 45.
  • the fastening surface 45s can be deeply penetrated into the loop member 110 to increase the fastening area, thereby securing a stable fastening action between the surface fastener 45 having the curved portion 40w and the attachment area.
  • the thickness T of the loop material 110 is not particularly limited. For example, it is preferable that the thickness T be 200% or less of the amount D1 of warpage of the surface fastener 35. Thereby, the mounting feeling (pressing feeling) of the surface fastener 45 to the loop material 110 can be obtained, and the stable attaching operation of the surface fastener 45 to the loop material 110 can be secured.
  • the thickness of the loop material 110 is defined as the difference between the low pressure thickness (0.5 gf / cm 2 ) and the high pressure thickness (50 gf / cm 2 ).
  • the low-pressure thickness is the thickness in a state in which almost no load is applied
  • the high-pressure thickness is a thickness at a pressure that the wearer can sufficiently apply when sticking the fastening tape to the loop material. It is.
  • the difference between the high-pressure thickness and the low-pressure thickness is an amount by which the loop material can be deformed in the thickness direction when the wearer attaches the fastening tape, and the pin (hook material) portion of the surface fastener can get into the loop material. It corresponds to the quantity.
  • the magnitude of the warpage amount D1 or the gap G1 is not limited to the case where it is constant over the entire area of the edge portions E11 and E12, but may be different for each portion.
  • the amount of warping D1 of the curved portion 40w may be larger on the tab portion 47 side than on the fixed end 41 side of the fastening tape 40 (the folded side of the tape base 44 in the non-use position).
  • the gap G1 becomes larger on the side of the tab portion 47, so that the operation of picking up the surface fastener 45 becomes easier.
  • the fastening tape 40 peels off from the side panel 30 and opens outward or a curved portion There is a possibility that the hook and loop fastener 45 may be bent starting from 40 w. In order to eliminate such a concern, it is preferable to make the amount of warpage (the gap G1) of the surface fastener 45 larger than that of the fixed end 41 as described above.
  • the fastening tape 40 may be formed so that the tape width becomes narrower toward the tab portion 47 side.
  • the end edge E11 on the crotch 13M side (the leg gather 13 side) of the fastening tape 40 obliquely extends toward the knob 47, and the contact area between the end edge E11 and the belly of the thumb is further increased.
  • the operation of picking up the surface fastener 45 is easier.
  • the side panel 30 of the diaper 1 is shirred and has a three-dimensional uneven structure (shearing portion 30s) having ridge lines in the front-rear direction (see FIG. 3A). . Since the shearing portion 30s is located in the vicinity of the tip portion (tab portion 47) of the fastening tape 40 in the non-use position, as shown in FIG. 5A, on the skin facing surface 30a of the side panel 30. When the sliding is performed while rubbing the thumb, the shearing portion 30s sinks in the thickness direction and is easily caught by the end edge portion E11 of the fastening tape 40.
  • the adhesion strength to the side panel 30 becomes lower compared to the case without the shirring portion 30s, and the side panel 30 It becomes easy to peel off the hook and loop fastener 45 from the hook.
  • the shirring portion 30s preferably has a smaller bending stiffness around the longitudinal direction (X-axis direction) of the side panel 30 than the bending stiffness around the width direction (Y-axis direction) of the side panel 30. Formed as. As a result, the side panel 30 can be easily bent about the front-rear direction, so that the end portion (tab portion 47) side of the fastening tape 40 is lifted from the side panel 30, and it becomes easier to pick it.
  • the form of the shirring portion 30s is not particularly limited, and may be a simple wave shape, or may be a flute structure having a hollow portion extending in the front-rear direction. The latter case is particularly advantageous because the above-mentioned effects are more remarkable.
  • the side panel 30 is formed of an elastic sheet that can be extended in the width direction, it is possible to flexibly extend the wearer's various body positions and secure a stable wearing feeling.
  • the side panel 30 be configured to be extensible in the width direction over the entire area in the front-rear direction. Thereby, it is possible to cope with the variation of the abdominal circumference according to the position of the wearer.
  • the side panel In general, when the wearer's body position changes, the side panel is likely to cause local curling in response to the change, and when an excessive load is applied in the diaper circumferential direction, the fastening tape is attached from the attachment area of the ventral side. It becomes easy to come off. In order to prevent such a sore, it is preferable to make the side panel 30 stretchable over its entire length in the front-rear direction as described above, whereby it is possible to make it difficult to cause the sore in any posture.
  • the ratio is preferably 5% or more.
  • the ratio of the maximum expansion amount in the width direction of each side panel 30 to the total length along the longitudinal direction of the absorbent main body 10 is, for example, 25% or less Is preferred.
  • the maximum amount of extension in the width direction of each side panel 30 refers to the difference between the width at the time of extension of the side panel 30 and the width at the time of contraction (natural state) of the side panel 30.
  • the lower limit value of the length ratio is As schematically shown in FIGS. 8A and 8B, the front edge side and the rear edge side of the fastening tape 40 may be set to different values.
  • FIG. 8A schematically shows the side panel 30 at contraction (natural state)
  • FIG. 8B schematically shows the side panel 30 at expansion.
  • surface fasteners 45 at the foremost (lower side in FIG. 8) end of the adhesive 63 joining the side panel 30 and the back side 10R and the front end edge E11 of the fastening tape 40.
  • L11 and L12 after elongation are L11 ′ and L12 ′, respectively, and L10 is the total product length (length in the back and forth direction of the absorbent main body 10)
  • L11 ′ and L12 ′ are set respectively. (L11'-L11) /L10 ⁇ 7.5% (1) (L12'-L12) / L10 ⁇ 5% (2)
  • the side panel is set such that the amount of extension (L11'-L11) on the front end edge E11 side of the fastening tape 40 is larger than the amount of extension (L12'-L12) on the rear end edge E12 side of the fastening tape 40.
  • 30 is set.
  • the swinging of the side panel 30 caused by the change in the position of the wearer is likely to occur on the front end edge E11 side of the fastening tape 40 along the circumference of the wearer's leg due to the large fluctuation range of the joint of the foot of the leg . Therefore, it is preferable that the front end edge E11 side of the fastening tape 40 have a sufficient deformation allowance of the side panel 30 corresponding to the movement of the foot.
  • the side panel 30 is required to have a deformation allowance that can cope with changes in the abdominal circumference of the wearer, but generally the side panels are more likely to be curled due to changes in the abdominal circumference It is more likely that longing may occur due to the movement of the legs. Also, although it is only necessary that the side panel can provide deformation tolerance for the abdominal circumference in order to cope with changes in abdominal circumference, the deformation tolerance for corresponding to the circumference of the leg must be satisfied by only one side panel. You must.
  • the amount of extension of the side panel 30 on the rear end edge E12 side of the fastening tape 40 is carelessly increased excessively, another problem may occur such as the diaper 1 being easily slipped off. From the above, the amount of extension (L11'-L11) on the front end edge E11 side of the fastening tape 40 becomes larger than the amount of extension (L12'-L12) on the rear end edge E12 side of the fastening tape 40
  • the side panel 30 is set.
  • each starting point which determines distance L11, L12 is not specifically limited, It is possible to set to arbitrary positions. Typically, the positions of the respective starting points are set such that the virtual line connecting the two starting points on the side panel 30 and the virtual line connecting the two starting points on the fastening tape 40 are parallel to each other.
  • the distance L11 and L12 can be determined.
  • FIG. 9 is an enlarged view of the main part including the fastening tape 50 at the non-use position of the present embodiment, in which (A) is a plan view and (B) is a schematic diagram cut along line IX-IX in (A). Cross-sectional view.
  • (A) is a plan view
  • (B) is a schematic diagram cut along line IX-IX in (A). Cross-sectional view.
  • the configuration of the fastening tape 50 is different from that of the first embodiment.
  • the details of the fastening tape 50 will be described.
  • the surface fastener 55 as a fastening material is fastened to at least a part of the end edges E21 and E22 in the front-rear direction (X-axis direction) at the non-use position of the fastening tape 50.
  • a curved portion 50w is provided to separate a part of the attachment surface 55s from the skin facing surface 30a of the side panel 30.
  • the surface fastener 55 has a shape curved around an axis parallel to the front-rear direction (X-axis direction) in a direction in which the fastening surface 55s side is concave. That is, as shown in FIG. 10, the cross-sectional shape in the width direction of the surface fastener 55 has a shape in which the fastening surface 55s side is curved in a concave shape, and the curved portion 50w is formed at both end edges E21 and E22 of the surface fastener 55. It is provided at the central part in the width direction.
  • the tape base material 44 since the tape base material 44 has flexibility, it has a curved shape that follows the shape of the surface fastener 55 at the bonding site with the surface fastener 55.
  • edge portions E21 and E22 are partially peeled off from the skin facing surface 30a of the side panel 30 and warped so as to float up, and between the edge portions E21 and E22 and the skin facing surface 30a of the side panel 30 Then, a gap G2 of a predetermined size is formed.
  • the fastening region of the fastening surface 55s and the side panel 30 is secured at both ends in the width direction (Y-axis direction) of the surface fastener 55, a stable temporary attachment state of the fastening tape 50 to the side panel 30 is secured. Be done.
  • the fastening tape 50 in the present embodiment has a curved portion 50 w that separates a part of the fastening surface 55 s from the skin facing surface 30 a of the side panel 30 at a part of the edge parts E 21 and E 22. Therefore, as in the first embodiment, when the thumb is slid toward the fastening tape 50 on the side panel 30, the gap G2 formed between the edge E21 of the surface fastener 55 and the side panel 30. The belly of the thumb is easily caught. Thereby, the operation of picking up the hook and loop fastener 55 is remarkably facilitated, and the smooth fastening operation of the diaper 1 can be secured.
  • the curved portions 50w described above are provided at both end edges E21 and E22 of the hook and loop fastener 55, not only the end edge E21 on the crotch 10M side but also the forefinger of the user at the opposite end edge E22 The middle finger is easy to get caught. As a result, the hook and loop fastener 55 can be easily picked up not only from the front side (front side) but also from the back side (back side), so that the user's operation method to be diversified can be sufficiently coped with.
  • the fastening tape 50 can be easily pulled off from the side panel 30, the fastening tape 50 can be comprised with a thinner and soft material.
  • the sum of the thicknesses of the tape substrate 44 and the hook and loop fastener 55 is, for example, 1.0 mm or less, and more preferably 0.5 mm or less. According to the present embodiment, as in the first embodiment, it is possible to secure the operability at the time of wearing while making the fastening tape 50 thin and soft.
  • the manufacturing method of the fastening tape 50 which has the above structures is not specifically limited, An appropriate method is employable.
  • the fastening tape 50 is typically manufactured by a roll-to-roll method. For example, while the wide sheet base material forming the tape base material 44 travels in one direction (MD direction), a band-like hook material forming the surface fastener 55 is bonded to the sheet base material. Thereafter, the fastening tape 40 is manufactured by cutting in a direction (CD direction) orthogonal to the MD direction.
  • the curved portion 40w As a method of forming the curved portion 40w, for example, a pair of rolls sandwiching the sheet base material and the hook material is used in the bonding step. At this time, the peripheral surface of the roll facing the sheet substrate is processed to be concave, and the peripheral surface of the roll facing the hook material is processed to be convex corresponding to the concave surface. As a result, the surface fastener 55 can be curved in such a shape that the fastening surface 55s side is curved in a concave shape.
  • the hook material is made of a thermoplastic resin
  • the hook material can be shrunk so that the free surface (fastening surface) of the hook material warps in a concave shape in the cooling step.
  • the bonding of the sheet base material and the hook material is not limited to the case of using an adhesive.
  • the heating site of the hook material may be only the bonding surface with the sheet substrate or may be the entire hook material.
  • the fastening tape 50 of this embodiment can be further configured as follows.
  • the curved portion 50w is provided at both end edges E21 and E22 of the surface fastener, but the curved portion 50w may be provided only at the end edge E21 on the crotch 10M side.
  • the magnitude of warpage of the surface fastener 55 formed by the curved portion 50w forms a gap G2 of a predetermined size or more between the edge portions E21 and E22 of the surface fastener 55 and the skin facing surface 30a of the side panel 30. If it can do, it will not be limited in particular.
  • the amount of warping D2 of the surface fastener 55 can be defined by the maximum depth of the fastening tape 40 based on the virtual line L connecting the two end edges E21 and E22 as schematically shown in FIG.
  • size of curvature amount D2 is not specifically limited, Preferably, it is 1 mm or more. Thereby, the gap G2 of 1 mm or more can be formed.
  • the size of the gap G2 is not particularly limited, and can be appropriately set according to the size of the surface fastener 55, the size of the user's fingertip, and the like, and is, for example, 1 mm or more and 5 mm or less.
  • the gap G2 By setting the gap G2 to 1 mm or more and 5 mm or less, while securing good peeling workability of the surface fastener 55 as described above, a sufficient fastening area with the side panel 30 is secured and desired temporary adhesion strength is achieved. You can get
  • the thickness T (see FIG. 6B) of the loop material 110 constituting the attachment area 11 (see FIG. 1) of the ventral side 10F supporting the fastening tape 50 is a surface as in the first embodiment. It is preferable to be optimized according to the amount of warping D2 of the fastener 55. In the present embodiment, the thickness T of the loop material 110 is preferably 50% or more of the amount of warp D2 of the surface fastener 55. As a result, the fastening surface 55s can be deeply penetrated into the loop member 110 to increase the fastening area, thereby securing a stable fastening action between the surface fastener 55 having the curved portion 50w and the attachment area. . On the other hand, the thickness T of the loop material 110 is not particularly limited.
  • the thickness T be 200% or less of the amount D1 of warpage of the surface fastener 35. Thereby, the mounting feeling (pressing feeling) of the surface fastener 45 to the loop material 110 can be obtained, and the stable attaching operation of the surface fastener 45 to the loop material 110 can be secured.
  • the bonding position of the fixed end 41 of the fastening tape 50 with respect to the non-skin facing surface 30b of the side panel 30 may be set as shown in FIG.
  • the bonding layer 641 for bonding the fixed end 41 to the non-bonding surface 30b of the side panel 30 is selectively provided in a region facing the apex of the curved portion 50w of the surface fastener 55 in the thickness direction.
  • the gap G2 can be stably formed between the side panel 30 and the curved portion 50w in accordance with the amount of warpage of the surface fastener 55.
  • the bonding layer 641 can be typically made of an adhesive, but may be formed by other bonding methods such as heat sealing and ultrasonic sealing.
  • the bonding layer 641 is preferably formed to have a length corresponding to the length of the surface fastener 55 in the front-rear direction.
  • the width of the bonding layer 641 is not particularly limited as long as the area of the side panel 30 facing the top of the curved portion 50w can be reliably separated from the fastening surface 55s.
  • the fixed end 41 of the tape base 44 is not limited to the case of being fixed to the non-skin opposing surface 30 b of the side panel 30, and the skin opposing surface 30 a of the side panel 30 is And the non-skin facing surface 30b.
  • the fixed end 41 of the tape base 44 is the non-skin of the side panel 30 and the panel material 34 constituting the skin facing surface 30 a of the side panel 30. It bonds with the other panel material 34 which comprises the opposing surface 30b through the adhesive agent 64 or the joining layer 641.
  • the same function and effect as those of the above-described first embodiment can be obtained.
  • the configuration of the side panel 30 described in the first embodiment and the allowable deformation amount thereof can be similarly applied to the present embodiment, and thus the description thereof will be omitted.
  • the tape width may be narrowed toward the tab portion 47 side.
  • the absorbent main body 10 and the side panel 30 are formed as separate members, but in the absorbent main body in which the absorbent main body and the side panel are integrated, a fastening tape is separately provided. It may be in a fixed form.
  • the absorbent main body and the side panel are integrated, for example, the top sheet and the back sheet cover the absorber and extend to the area of the side panel.
  • the present invention is applicable to a diaper in which two fastening tapes are arranged in the front-rear direction on each fastening member.
  • the absorbent article according to the present invention may not be a disposable diaper for infants, and may be, for example, a disposable diaper for adults or children. Furthermore, the absorbent article according to the present invention may not be a disposable diaper as long as it is an absorbent article of a type worn on the lower body. Examples of such an absorbent article include a spreadable diaper type sanitary napkin and a urine leak pad.
  • the present invention further discloses the following absorbent article.
  • An absorbent main body having a crotch portion and a ventral side portion and a dorsal side portion respectively disposed on both sides in the front-rear direction of the crotch portion, and the skin side having a skin facing surface and a non-skin facing surface
  • a main body having side flaps provided on both side edges in a width direction orthogonal to the front and rear direction of the part; and a flexible tape base material extending outward in the width direction from the side flaps; And a non-use position where the fastening surface is temporarily attached to the skin-facing surface, the fastening material including a fastening material joined to the tape base material and including a fastening surface that can be stuck to the belly side.
  • a fastening tape configured to be foldable between the use surface and the use position separated from the skin-facing surface, and the fastening material is attached to at least a part of the crotch-side end edge, It has a curved portion which separates a part of the fastening surface from the skin facing surface in the non-use position, Absorbent article.
  • the absorbent article according to ⁇ 1> wherein the tape base is the non-skin facing surface or a fixed end fixed between the skin facing surface and the non-skin facing surface;
  • the fastening member has the fixed end and a tab portion located at a free end opposite to the width direction, and the fastening member has a shape in which the fastening surface side is curved in a convex shape or a concave shape. Having an absorbent article.
  • ⁇ 3> The absorbent article according to ⁇ 2>, wherein the cross-sectional shape of the fastening material in the front-rear direction has a shape in which the fastening surface side is curved in a convex manner, and the curved portion is The absorbent article provided in the whole area of the edge part by the side of the said crotch of the said fastening material.
  • ⁇ 4> The absorbent article according to ⁇ 3>, wherein the amount of warpage on the tab portion side of the curved portion is larger than the amount of warpage on the fixed end side of the curved portion. .
  • ⁇ 5> The absorbent article according to ⁇ 3> or ⁇ 4>, wherein the side flaps have a three-dimensional shirring portion along the front-rear direction.
  • ⁇ 6> The absorbent article according to ⁇ 5>, wherein the fastening tape is temporarily attached to the shirring portion at the non-use position. ≪ 7 > The absorbent article according to < 5 > or < 6 >, wherein the bending stiffness around the front-rear direction of the side flaps is greater than the bending stiffness around the width direction of the side flaps. Absorbent articles are smaller.
  • ⁇ 8> The absorbent article according to any one of ⁇ 5> to ⁇ 7>, wherein the shirring portion has a hollow portion extending in the front-rear direction.
  • ⁇ 9> The absorbent article according to ⁇ 2>, wherein the cross-sectional shape in the width direction of the fastening material has a shape in which the fastening surface side is curved in a concave shape, and the curved portion is The absorbent article provided in the center part of the said width direction in the edge part by the side of the said crotch of a fastening material.
  • ⁇ 12> The absorbent article according to any one of ⁇ 1> to ⁇ 11>, wherein a sum of thicknesses of the tape base and the fastening material is 1.0 mm or less. Sex goods. ⁇ 13> wherein ⁇ 1> - The absorbent article according to any one of ⁇ 12>, the side flaps are made of an elastic sheet that can be extended in the width direction over the entire area of the front-rear direction , Absorbent articles. ⁇ 14> The absorbent article according to ⁇ 13>, wherein a ratio of the maximum extension in the width direction of the side flaps to the total length of the absorbent main body in the front-rear direction is 5% or more Is an absorbent article.
  • ⁇ 15> The absorbent article according to any one of ⁇ 1> to ⁇ 14>, wherein the side flaps are joined between the side edges of the back side and the fastening tape.
  • An absorbent article comprising a side panel.
  • ⁇ 16> The absorbent article according to any one of ⁇ 1> to ⁇ 15>, wherein the tape base material has the shape of the bonding material at the bonding site with the bonding material.
  • ⁇ 17> The absorbent article according to any one of ⁇ 1> to ⁇ 16>, wherein a predetermined size is provided between an edge portion of the fastening material and a skin-facing surface of the side flap.
  • ⁇ 18> The absorbent article according to any one of ⁇ 3> to ⁇ 8>, wherein the curved portions are provided at both end edges of the fastening material.
  • ⁇ 19> The absorbent article according to any one of ⁇ 1> to ⁇ 18>, wherein the sum of the thicknesses of the tape base and the fastening material is more preferably 0.5 mm or less There is an absorbent article.
  • ⁇ 20> The absorbent article according to ⁇ 17>, wherein the size of the gap is not particularly limited, and can be appropriately set according to the size of the fastening material, the size of the user's fingertip, etc.
  • Absorbent article which is 1 mm or more and 5 mm or less, for example.

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)

Abstract

L'invention concerne un article absorbant comprenant une partie corps et des bandes de fixation. La partie corps comprend un corps absorbant et des rabats latéraux. Le corps absorbant comporte une partie entrejambe, ainsi qu'une partie ventrale et une partie dorsale disposées à l'avant et à l'arrière, respectivement, de la partie entrejambe. Les rabats latéraux, comportant chacun une surface tournée vers la peau et une surface non tournée vers la peau, sont disposés sur des bords opposés latéralement de la partie dorsale. Chaque bande de fixation comporte un support de bande souple et un matériau de fixation. Le support de bande s'étend latéralement à partir du rabat latéral. Le matériau de fixation comprend une surface de fixation qui est reliée au support de bande et peut être collée sur la partie ventrale. La bande de fixation est configurée pour être pliable entre une position de non-utilisation dans laquelle la surface de fixation est temporairement fixée sur la surface tournée vers la peau et une position d'utilisation dans laquelle la surface de fixation est décollée de la surface tournée vers la peau. Le matériau de fixation comporte une partie incurvée sur au moins une partie d'un bord latéral plus proche de la partie entrejambe, pour séparer une partie de la surface de fixation de la surface tournée vers la peau dans la position de non-utilisation.
PCT/JP2017/045732 2017-12-20 2017-12-20 Article absorbant WO2019123572A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2019559933A JP6942817B2 (ja) 2017-12-20 2017-12-20 吸収性物品
RU2020123711A RU2735174C1 (ru) 2017-12-20 2017-12-20 Впитывающее изделие
PCT/JP2017/045732 WO2019123572A1 (fr) 2017-12-20 2017-12-20 Article absorbant
CN201780095929.9A CN111212622B (zh) 2017-12-20 2017-12-20 吸收性物品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/045732 WO2019123572A1 (fr) 2017-12-20 2017-12-20 Article absorbant

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WO2019123572A1 true WO2019123572A1 (fr) 2019-06-27

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JP (1) JP6942817B2 (fr)
CN (1) CN111212622B (fr)
RU (1) RU2735174C1 (fr)
WO (1) WO2019123572A1 (fr)

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPH01168902A (ja) * 1987-12-04 1989-07-04 Minnesota Mining & Mfg Co <3M> 人体輪郭合致型のおむつ及び使い捨ておむつを作る方法
JP2002529169A (ja) * 1998-11-06 2002-09-10 ベルクロ インダストリーズ ビー ヴィッ タッチファスナー、その製造、およびそれを組み込んだ製品
JP2014124196A (ja) * 2012-12-25 2014-07-07 Kao Corp 使い捨ておむつ

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Publication number Priority date Publication date Assignee Title
WO1997028774A1 (fr) * 1996-02-09 1997-08-14 Avery Dennison Corporation Couches-culottes presentant des fermetures mecaniques prealablement fixees
US20020078536A1 (en) * 2000-12-22 2002-06-27 Martin Timothy Ray Sliding fastening system
RU2389511C2 (ru) * 2005-11-30 2010-05-20 Ска Хайджин Продактс Аб Адсорбирующее изделие
JP5836088B2 (ja) * 2011-11-28 2015-12-24 花王株式会社 使い捨ておむつ
US10363176B2 (en) * 2011-12-23 2019-07-30 Kimberly-Clark Worldwide, Inc. Refastenable disposable garment having a curled edge, and process for making same
JP6083906B1 (ja) * 2015-09-07 2017-02-22 花王株式会社 吸収性物品
JP6072175B1 (ja) * 2015-09-07 2017-02-01 花王株式会社 吸収性物品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168902A (ja) * 1987-12-04 1989-07-04 Minnesota Mining & Mfg Co <3M> 人体輪郭合致型のおむつ及び使い捨ておむつを作る方法
JP2002529169A (ja) * 1998-11-06 2002-09-10 ベルクロ インダストリーズ ビー ヴィッ タッチファスナー、その製造、およびそれを組み込んだ製品
JP2014124196A (ja) * 2012-12-25 2014-07-07 Kao Corp 使い捨ておむつ

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RU2735174C1 (ru) 2020-10-28
CN111212622B (zh) 2021-06-08
JPWO2019123572A1 (ja) 2020-12-03
CN111212622A (zh) 2020-05-29
JP6942817B2 (ja) 2021-09-29

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