WO2018123256A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2018123256A1
WO2018123256A1 PCT/JP2017/039515 JP2017039515W WO2018123256A1 WO 2018123256 A1 WO2018123256 A1 WO 2018123256A1 JP 2017039515 W JP2017039515 W JP 2017039515W WO 2018123256 A1 WO2018123256 A1 WO 2018123256A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
waistline
front waistline
locking
locked
Prior art date
Application number
PCT/JP2017/039515
Other languages
English (en)
Japanese (ja)
Inventor
大貴 近藤
京太 齋藤
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
Publication of WO2018123256A1 publication Critical patent/WO2018123256A1/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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • 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
    • 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
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop

Definitions

  • the present invention relates to an absorbent article such as a disposable diaper.
  • Patent Document 1 discloses a so-called single-open pants-type diaper. It is disclosed.
  • the diaper 1 ′ has a front waistline portion 20 ′ along the lateral direction and a waistline opening BH ′ on the upper side in the vertical direction intersecting the lateral direction in cooperation with the front waistline portion 20 ′.
  • Crotch part 10 ' provided between the two.
  • the one end 20eW1 ′ in the lateral direction of the front waistline portion 20 ′ and the one end 30eW1 ′ in the lateral direction of the rear waistline portion 30 ′ are joined by the joint j1 ′, thereby Only one leg opening LH1 ′ is formed on the one side.
  • a locking portion 40 'that can be locked to the front waistline portion 20' is provided at the other end 30eW2 'in the lateral direction of the rear waistline portion 30'.
  • the wearing of the diaper 1 'to the wearer is performed as follows. First, as shown in FIG. 2A, one leg ML1 'in the lateral direction of the wearer is put into the leg opening LH1' on one side. The diaper 1 ′ is pulled up toward the wearer's crotch (inseam) so that the crotch portion 10 ′ forming a part of the leg opening LH ⁇ b> 1 ′ is in contact with the buttocks ML ⁇ b> 1 ⁇ / b> P ′ of the one leg ML ⁇ b> 1 ′. Then, as shown in FIG.
  • the locking portion 40 'of the other end 30eW2' of the rear waistline portion 30 ' is locked to the front waistline portion 20'.
  • the other leg ML2 ′ is also formed with the other leg opening LH2 ′ so as to cover it, and the waist opening BH ′ is formed so as to cover the wearer's waist. With this, the wearing operation of the diaper 1 ′ to the wearer is completed.
  • the other leg ML2 ′ when the locking portion 40 ′ is locked to the front waistline portion 20 ′, from the viewpoint of preventing leakage at the flange ML2P ′ of the other leg ML2 ′, the other leg ML2 ′ as shown in FIG. 2A.
  • the locking portion 40 ′ of the other end portion 20eW2 ′ of the front waistline portion 20 ′ and the other end portion 30eW2 ′ of the rear waistline portion 30 ′ is arranged so that the crotch portion 10 ′ is in contact with the flange portion ML2P ′.
  • Each hand must be grasped by each hand and pulled in the direction of the arrow in FIG. 2A, that is, the other side in the lateral direction and upward.
  • the front waistline portion 20 ′ of the diaper 1 ′ described in Patent Document 1 is used.
  • the other end portion 20eW2 ′ in FIG. 2 does not have a shape suitable for such a laterally diagonally upward pulling operation. That is, in Patent Document 1, as shown in FIG. 2A, the shape of the other end 20eW2 ′ is a straight line along the vertical direction. Therefore, it may be easy to grasp by hand when simply pulling to the other side in the lateral direction, but when pulling upward at the same time as pulling to the other side in the horizontal direction, it is more suitable than such a linear shape. It is thought that there is a different shape.
  • the present invention has been made in view of the above-described problems, and its purpose is to attach the other end in the lateral direction of the front waistline portion to the other side in order to attach the absorbent article to the wearer. This is to make it easier to grip the end portion by hand when pulling upward.
  • the main invention for achieving the above object is: An absorbent article having a longitudinal direction, a transverse direction intersecting the longitudinal direction, and a longitudinal direction perpendicular to the longitudinal direction and the transverse direction, A front waistline portion along the lateral direction; In cooperation with the front waistline portion, a rear waistline portion along the lateral direction for forming a waistline opening on the upper side in the vertical direction, A crotch part provided between the front waistline part and the rear waistline part, while being positioned below the longitudinal direction than the front waistline part and the rear waistline part, An end portion on one side in the lateral direction in the front waistline portion and an end portion on the one side in the lateral direction in the rear waistline portion are joined at a joint portion, A locking portion that can be locked to the front surface of the front waistline portion in the front-rear direction is provided at the other end portion in the lateral direction of the rear waistline portion, The end on the other side of the front waistline portion is a portion of the other end that protrudes to the other
  • the end portion on the other side in the lateral direction in the front waistline portion is pulled upward to the other side, the end portion can be easily grasped by hand.
  • FIG. 2A and FIG. 2B are schematic explanatory views of a procedure for mounting the single-open pant diaper 1 ′. It is a schematic perspective view of the single-opening pants-type diaper 1 of the present embodiment. It is the schematic plan view which looked at the diaper 1 of the unfolding state from the wearer's non-skin side.
  • FIG. 4B is a sectional view taken along line BB in FIG. 4A.
  • FIG. 5A to FIG. 5C are schematic explanatory views of a procedure for attaching the diaper 1. It is a schematic enlarged view of the front waistline part 20 in FIG. 4A.
  • FIG. 9A and 9B show a problem that occurs when a non-woven female material 55 is provided as the locking target portion 50 on the front side surface of the front waistline portion 20 while a male material 45 is provided as the locking portion 40 of the back waistline portion 30. It is a schematic explanatory drawing.
  • An absorbent article having a longitudinal direction, a transverse direction intersecting the longitudinal direction, and a longitudinal direction perpendicular to the longitudinal direction and the transverse direction, A front waistline portion along the lateral direction;
  • a rear waistline portion along the lateral direction for forming a waistline opening on the upper side in the vertical direction,
  • a crotch part provided between the front waistline part and the rear waistline part, while being positioned below the longitudinal direction than the front waistline part and the rear waistline part
  • An end portion on one side in the lateral direction in the front waistline portion and an end portion on the one side in the lateral direction in the rear waistline portion are joined at a joint portion,
  • a locking portion that can be locked to the front surface of the front waistline portion in the front-rear direction is provided at the other end portion in the lateral direction of the rear waistline portion,
  • the end on the other side of the front waistline portion is a portion of the
  • the end on the other side of the front waistline portion is a portion that protrudes to the other side in the lateral direction from the central portion in the vertical direction at the same end portion. At the upper position. Therefore, when pulling the end portion to the other side and upward, the end portion can be easily grasped by hand. Further, in the state where the locking portion of the rear waistline portion is locked to the front waistline portion, the rear waistline portion is in a state of being overlapped from the front side on the other side end portion in the front waistline portion, Compared to the case where the other end does not have the protruding portion, the other end can ensure a large contact area with the rear waistline by the area of the protruding portion. it can. And thereby, the position shift of the front waistline part and the back waistline part which can occur after the latching of the said latching
  • the other end portion of the front waistline portion is a second portion projecting to the lower side in the vertical direction from the central portion in the vertical direction and to the other side in the horizontal direction from the central portion. It is desirable to have
  • the other end portion of the front waistline portion has the second portion projecting to the other side in the horizontal direction on the lower side in the vertical direction than the central portion. Therefore, the end portion on the other side can secure a larger contact area with the rear waistline portion, and thereby the positions of the front waistline portion and the rear waistline portion that can occur after the locking portion is locked. The shift can be prevented more effectively.
  • the other end portion of the front waistline portion has the protruding portion and the protruding second portion one by one.
  • the other end portion of the front waistline portion has a recessed portion on one side in the lateral direction at the central portion between the protruding portion and the protruding second portion. It has only one shape. Therefore, when the locking portion is locked to the front waistline portion, the recessed portion is used as a mark indicating the longitudinal center of the front waistline portion, while the rear waistline portion is positioned on the front side of the front waistline portion. Can be stacked. And thereby, a front waistline part and a back waistline part can be piled up by the appropriate positional relationship in the vertical direction.
  • the front waistline portion has a portion to be locked to which the locking portion is to be locked, In the front waistline portion, it is desirable that the portion on the one side with respect to the portion to be locked is provided with a stretchable region having the stretchability in the lateral direction.
  • the portion provided with the portion to be locked in the front waistline portion is a low expansion / contraction region in which the lateral stretchability is lower than that of the expansion / contraction region.
  • Such an absorbent article It is desirable that the largest projecting portion of the projecting portion that projects to the other side is located below the upper end in the longitudinal direction of the end portion on the other side of the front waistline portion.
  • the protruding portion protrudes most on the other side at a position below the upper end in the longitudinal direction of the other end portion of the front waistline portion. Therefore, compared with the case where it protrudes most at the upper end, a sharp image can be reduced, and this gives a wearer or a wearer such as a mother who wears the absorbent article to the wearer. be able to. Further, when the rear waistline portion is overlapped with the other end portion of the front waistline portion so as to lock the above-mentioned locking portion to the front waistline portion, the rear waistline portion is shifted downward from the appropriate position of the front waistline portion. It is possible to end up.
  • the probability that the maximum protruding portion overlaps the rear waistline portion can be increased. And it becomes easy to ensure a large contact area with the rear waistline part by the end part of the other side by this.
  • Such an absorbent article It is preferable that the contour of the maximum projecting portion and the peripheral portion thereof is formed with a curve.
  • the portion on the other side of the crotch part in the rear waistline portion includes a stretchable region having the stretchability in the lateral direction, In a state where the locking portion is locked to the front waistline portion, it is desirable that the stretchable region of the rear waistline portion overlaps the front waistline portion.
  • the stretchable region of the rear waistline portion contracts in the horizontal direction after the locking portion is locked to the front waistline portion
  • the stretchable region has a plurality of wrinkles along the vertical direction. Although these are generated side by side in the lateral direction, these heels abut against the front waistline where the stretchable regions overlap. Therefore, the stretchable region is easily caught by the front waistline portion based on the heel. This also effectively contributes to prevention of displacement between the front waistline portion and the rear waistline portion that may occur after the locking portion is locked to the front waistline portion.
  • the locking portion has a female material that can be locked by a male material
  • the front surface in the front-rear direction of the front waistline portion is provided with the male material as a locking target portion to which the female material is to be locked, In a state where the female material is locked to the male material, it is desirable that the rear waistline portion overlaps the front waistline portion from the front side.
  • the male material is provided in the front portion of the front waistline portion. Therefore, it is possible to prevent the wearer's skin from being damaged by the male material when the rear waistline portion is stacked on the front waistline portion from the front side in order to lock the female material of the locking portion to the male material.
  • Such an absorbent article When viewed from the front-rear direction, it is preferable that a portion to be engaged with the engagement portion is provided in a portion overlapping the crotch portion in the front waistline portion.
  • the rigidity of the above-described locking target portion can be supplemented not only by the rigidity of the front waistline portion but also by the rigidity of the crotch part. It's harder to catch a spider. For this reason, a problem that may occur when the hooked portion approaches, that is, the area that contributes to the locking on the locking target portion due to the hook is reduced, and the engagement with the locking portion is reduced. The problem that the stopping force becomes small can be effectively prevented.
  • the center line of the protruding portion faces the other side and upward. Therefore, when pulling the other end portion of the front waistline portion to the other side and upward, it becomes easier to grasp the end portion by hand.
  • the center line is directed to the other side and upward, it is associated with a person who grasps and pulls the end part by hand and should pull not only to the other side in the lateral direction but also to the upper side. Can be made. Therefore, the said edge part can be reliably pulled on the other side and upward.
  • the engaging portion is joined to the other end portion of the rear waistline portion as a separate member from the rear waistline portion by a joint portion, and the latching portion is located on the other side of the end portion.
  • the lateral size of the portion located on the other side of the center portion is larger than that of the joint portion in the locking portion of the rear waistline portion. It is desirable that the size of the portion to be positioned is smaller than the horizontal size.
  • the lateral size of the protruding portion can be made relatively small. Therefore, it is possible to effectively prevent a problem that may occur when the protruding part is large in the lateral direction, that is, a problem that the protruding part is easily bent due to a decrease in bending rigidity of the protruding part. it can. As a result, it is possible to prevent the absorbent article from being worn in a state in which the protruding portion is bent and causing the wearer to feel a sense of incongruity such as stiffness.
  • FIG. 3 is a schematic perspective view of the diaper 1.
  • This diaper 1 has a “vertical direction”, a “horizontal direction” orthogonal to the vertical direction, and a “front-rear direction” orthogonal to the vertical direction and the horizontal direction in a single-open pants-type state before wearing as shown in FIG. ,have. And while wearing the diaper 1, the vertical direction often faces the vertical direction. Therefore, hereinafter, the vertical direction is also referred to as “vertical direction”.
  • corresponds to a wearer's waistline side
  • corresponds to a wearer's inseam side
  • corresponds to a wearer's belly side
  • corresponds to a wearer's back side
  • corresponds to a wearer's left side
  • corresponds to a wearer's right side.
  • the terms “one side” and “the other side” refer to the one side and the other side in the horizontal direction.
  • the diaper 1 is located in the front waistline portion 20 along the horizontal direction and the front waistline portion 20, while being in cooperation with the front waistline portion 20.
  • the absorptive main body 10 protrudes and is located below the front waistline part 20 and the back waistline part 30 in the vertical direction.
  • the one end 20eW1 in the lateral direction of the front waistline portion 20 and the one end 30eW1 in the lateral direction of the rear waistline portion 30 are joined by a joint j1.
  • the front waistline portion 20 and the rear waistline portion 30 together with the absorbent main body 10 form one leg opening LH1 at a position on one side and below in the lateral direction.
  • the junction j1 is formed by welding or adhesion.
  • a locking portion 40 that can be locked to the front surface of the front waistline portion 20 is provided at the other end 30eW2 in the lateral direction of the rear waistline portion 30. Then, as virtually indicated by a two-dot chain line in FIG.
  • the locking portion 40 is locked to the front surface of the front waistline portion 20, so that the front waistline portion 20 and the rear waistline portion 30 Jointly form the waistline opening BH on the upper side, and the front waistline part 20, the rear waistline part 30, and the absorbent main body 10 together, so that the leg circumference opening LH2 is also provided at the other side and the lower position. Form one. And thereby, the said diaper 1 will be in the state worn by the wearer.
  • FIG. 4A is a schematic plan view of the unfolded diaper 1 as seen from the non-skin side of the wearer.
  • 4B is a cross-sectional view taken along the line BB in FIG. 4A.
  • the unfolded state means that the front waistline portion 20 and the rear waistline portion 30 are formed by unbonding the above-described joint portion j1 that the diaper 1 in the single-open pants-type state of FIG. 3 has on one side in the lateral direction. It is the state which expanded the diaper 1 on the plane by separating and opening the diaper 1 longitudinally.
  • the diaper 1 is shown in a virtual state in which each member constituting the diaper 1 has no elasticity.
  • the diaper 1 is provided with a plurality of elastic members 16, 23, 33 for the purpose of imparting stretchability to the diaper 1.
  • the elastic members 16, 23, 33 are provided in this expanded state.
  • the diaper 1 is shown in a virtual state where there is no 33 stretchability (contraction force).
  • the diaper 1 In the unfolded state, the diaper 1 has a longitudinal direction, a lateral direction, and a thickness direction (a direction penetrating the paper surface in FIG. 4A) as three directions orthogonal to each other.
  • the longitudinal direction is along the above-described longitudinal direction.
  • One side in the longitudinal direction corresponds to the ventral side, and the other side corresponds to the back side.
  • the outer side in the longitudinal direction corresponds to the upper side in the vertical direction
  • the inner side in the longitudinal direction corresponds to the lower side in the vertical direction. Since the longitudinal direction and the longitudinal direction are similar to each other as described above, hereinafter, for the convenience of explanation, even in this expanded state, the longitudinal direction may be used instead of the longitudinal direction. .
  • the lateral direction is synonymous with the lateral direction in the above-described single-opening pants type state.
  • corresponds to the skin side which contact
  • the thickness direction is along the aforementioned front-rear direction. For this reason, in the following description, even in this expanded state, the front-rear direction may be used instead of the thickness direction for the convenience of explanation.
  • the front waistline portion 20 is disposed along the lateral direction, and the rear waistline portion 30 is laterally spaced from the front waistline portion 20 at a predetermined interval in the longitudinal direction. Arranged along the direction. And while the absorptive main body 10 is spanned along the longitudinal direction between the front waistline part 20 and the rear waistline part 30, the longitudinal ends 10ea, 10eb of the absorptive body 10 are nearest to each other. Are joined and fixed to the waist portions 20 and 30, so that the external shape thereof is substantially H-shaped in plan view.
  • the absorbent main body 10 has a substantially rectangular shape in plan view in the expanded state of FIG. 4A. And the longitudinal direction of the absorptive main body 10 is distribute
  • the absorbent body 11 has a liquid absorbent absorbent core 11c and a core wrap sheet (not shown) that covers the outer peripheral surface of the core 11c.
  • the absorbent core 11c is a molded body obtained by molding a predetermined liquid absorbent material into a substantially hourglass shape in plan view as an example of a predetermined shape.
  • a liquid absorptive material liquid absorptive granular materials, such as liquid absorptive fibers, such as pulp fiber, and superabsorbent polymer (what is called SAP) can be illustrated.
  • the core wrap sheet may be a liquid permeable sheet such as tissue paper or non-woven fabric, but the core wrap sheet may be omitted.
  • the shape of the absorptive core 11c is not limited to the above-mentioned substantially hourglass shape in plan view, but may be other shapes.
  • the top sheet 13 is a liquid-permeable flexible sheet such as a nonwoven fabric.
  • the back sheet 15 is a liquid-impermeable flexible sheet.
  • a liquid-impermeable leak-proof sheet 15 a such as a polyethylene film or a polypropylene film and a non-woven exterior sheet 15 b bonded to the non-skin side of the leak-proof sheet 15 a are provided.
  • the laminated sheet 15 having a two-layer structure is given (FIG. 4B).
  • At least the back sheet 15 is a flat sheet that protrudes from the absorbent body 11 in the longitudinal direction and the lateral direction.
  • the leg gather LG which each expands-contracts in a longitudinal direction is formed in the part protruded in the horizontal direction. That is, a plurality of elastic members 16, 16... Such as rubber thread are fixed to the protruding portion in the longitudinal direction along the longitudinal direction. LG is formed.
  • the rear waistline portion 30 is a sheet member having a substantially rectangular shape in plan view made of a flexible sheet such as a nonwoven fabric as shown in FIG. 4A.
  • the back trunk part 30 is formed by joining the nonwoven fabrics 31 and 32 on 2 sheets.
  • the rear waistline portion 30 is arranged so as to protrude on both sides in the lateral direction from the absorbent main body 10, while the back end portion 10 eb of the absorbent main body 10 has no skin. It is overlapped and joined from the side.
  • a plurality of elastic members 33, 33, etc. such as rubber thread along the horizontal direction, are vertically disposed between the two nonwoven fabrics 31, 32 associated with the rear waistline portion 30.
  • the nonwoven fabrics 31 and 32 are joined and fixed in a state of being stretched in the lateral direction while being inserted side by side in the direction.
  • the rear waistline portion 30 is provided with lateral stretchability.
  • the elastic members 33, 33... Generally extend from one side end to the other side end in the vertical direction of the upper end 30 eu of the rear waistline portion 30. It is arranged continuously.
  • the elastic member 33 is disposed so as to be discontinuous at a part in the lateral direction with respect to a portion 30d below the upper end portion 30eu. That is, the elastic member 33 is not disposed in the lower portion 30d that overlaps the central portion in the horizontal direction of the absorbent core 11c, but one side and the other in the horizontal direction relative to the portion 30c.
  • a plurality of elastic members 33 along the horizontal direction are arranged side by side in the vertical direction. And thereby, the elastic member 33 is arrange
  • the elastic member 33 does not have to be disposed at all in a portion overlapping the absorbent core 11c in the lower portion 30d.
  • the aforementioned locking portion 40 is joined to the other end 30eW2 in the lateral direction of the rear waistline 30 as a separate member from the rear waistline 30 by the joint j2. ing.
  • the locking portion 40 is made of a flexible sheet such as a nonwoven fabric as in the case of the rear waistline portion 30.
  • the two nonwoven fabrics 41 and 42 are bonded together.
  • locking part 40 made from this nonwoven fabric 41 and 42 functions as a female material in the case of the above-mentioned latching. That is, the locking portion 40 is hooked on a male material 50 of a locking target portion 50 described later of the front waistline portion 20 to lock the locking portion 40 to the front waistline portion 20.
  • the joint j2 is formed by welding or adhesion.
  • FIG. 4A also shows a center line CL30 indicating the center position in the lateral direction in the rear waistline portion 30, and this center line CL30 is used by the wearer of FIG. 5A described later to diaper the leg ML1 on one side. It is designed to coincide with the center position CLM in the lateral direction of the wearer's body in a state where it is placed in one leg opening LH1 on one side.
  • the center line CL ⁇ b> 30 is shifted laterally with respect to the center line CL ⁇ b> 10 indicating the horizontal center position of the absorbent main body 10.
  • the center line CL10 of the absorbent main body 10 matches the center position CLM of the wearer's body.
  • the front waistline portion 20 is also a sheet member having a substantially rectangular shape in a plan view made of a flexible sheet such as a nonwoven fabric as shown in FIG. 4A.
  • the front waistline portion 20 is formed by joining the nonwoven fabrics 21 and 22 in a stacked manner.
  • the said front waist part 20 is arranged so that it may protrude on the both sides of the horizontal direction rather than the absorptive main body 10, and the non-skin is formed in the abdominal end part 10ea in the absorptive main body 10. It is overlapped and joined from the side.
  • a plurality of elastic members 23, 23..., Such as rubber thread, along the transverse direction are also vertically disposed between the two nonwoven fabrics 21, 22 associated with the front waistline portion 20.
  • the nonwoven fabrics 21 and 22 are joined and fixed in a state of being stretched in the lateral direction while being inserted side by side in the direction. As a result, the front waistline portion 20 is given lateral stretchability.
  • the elastic member 23 is provided only in the portion 20 w 1 on the one side in the lateral direction from the central portion in the lateral direction of the absorbent core 11 c in the front waistline portion 20, and absorbs in the front waistline portion 20.
  • the portion 20c corresponding to the central portion in the horizontal direction of the core 11c and the portion 20w2 on the other side in the horizontal direction from the portion 20c are not provided. Therefore, with respect to the front waistline portion 20, only the one-side portion 20w1 is given lateral stretchability, and the other-side portion 20w2 is not given stretchability.
  • the non-skin side surface (corresponding to the front surface described above in the front-rear direction) of the other side portion 20w2 is provided with a locking target portion 50 that locks with the above-described locking portion 40.
  • the locking target portion 50 is, for example, a male material 50 of a hook-and-loop fastener. That is, a plurality of locking projections (not shown) are provided on the substantially rectangular non-skin side surface of the male material 50. Therefore, the locking portion 40 is locked to the locking target portion 50 when these locking projections are hooked on the fibers of the locking portion 40 formed by the nonwoven fabrics 41 and 42 described above.
  • Examples of the shape of the locking protrusion include a fishhook type and a mushroom type.
  • FIGS. 5A to 5C are explanatory diagrams of a procedure for attaching the diaper 1.
  • one leg ML1 in the lateral direction of the wearer is put into one leg opening LH1 on one side of the diaper 1.
  • the diaper 1 is placed toward the wearer's crotch (inseam) so that the absorbent main body 10 forming a part of the leg opening LH1 hits the buttocks ML1P of the one leg ML1.
  • Pull up the state of FIG. 5B, as shown in FIG. 5C, the locking portion 40 of the other end 30 e W 2 in the lateral direction in the rear waistline portion 30 is locked to the male member 50 of the front waistline portion 20.
  • the leg opening LH2 on the other side is formed so as to cover the other leg ML2, and the waist opening BH is formed so as to cover the wearer's waist.
  • work of the diaper 1 to a wearer is complete
  • FIG. 6 is an explanatory view thereof, and is a schematic enlarged view of the front waistline portion 20 in FIG. 4A.
  • the other end 20eW2 of the front waistline portion 20 is a portion 20eW2pa that protrudes to the other side in the horizontal direction from the vertical center 20eW2c of the end 20eW2. It is in a position on the upper side in the vertical direction.
  • the protruding portion 20eW2pa can also be quickly grasped, whereby the end portion 20eW2 can be easily grasped by hand.
  • the rear waistline portion 30 in the state where the locking portion 40 of the rear waistline portion 30 is locked to the male member 50 of the front waistline portion 20, the rear waistline portion 30 is the end 20eW2 on the other side of the front waistline portion 20.
  • the other side of the protruding portion 20eW2pa is equivalent to the area of the protruding portion 20eW2pa.
  • the end portion 20eW2 can secure a large contact area with the rear waistline portion 30. And thereby, the position shift of the front waistline part 20 and the back waistline part 30 which can occur after the latching
  • the maximum protruding portion 20eW2pam when the portion 20eW2pam that protrudes to the other side in the horizontal direction among the protruding portions 20eW2pa is referred to as the “maximum protruding portion 20eW2pam”, preferably, The maximum protruding portion 20eW2pam is preferably located below the upper end 20eW2eu in the vertical direction of the other end portion 20eW2.
  • the contour of the maximum projecting portion 20eW2pam and its peripheral portion is formed by a substantially arc-shaped curve convex on the other side, thereby realizing the positional relationship as described above.
  • the sharp image of appearance can be reduced, and, thereby, a wearer or wearing work Can give people a sense of security.
  • the fact that the contours of the maximum projecting portion 20eW2pam and its peripheral portion are formed by the above-described curves also contribute to the reduction of the sharp image. Further, as shown in FIG.
  • the rear waistline portion 30 when the rear waistline portion 30 is overlapped with the other end 20eW2 of the front waistline portion 20 in order to lock the locking portion 40 to the male member 50 of the front waistline portion 20, the rear waistline portion 30 May be shifted downward from the appropriate position of the front waistline portion 20.
  • the maximum protrusion 20eW2pam is positioned below the upper end 20eW2eu as described above with reference to FIG. 6, the probability that the maximum protrusion 20eW2pam overlaps the rear waistline 30 is increased. Can do. As a result, the end portion 20eW2 on the other side can easily secure a large contact area with the rear waistline portion 30.
  • the shape of the maximum projecting portion 20eW2pam and its peripheral portion should be a polygonal shape or a composite shape combining straight lines and curves. You can also.
  • the center line CL20eW2pa of the portion 20eW2pa is focused on as an indication of the protruding direction of the protruding portion 20eW2pa
  • the center line CL20eW2pa is preferably directed to the other side in the lateral direction and upward. And good.
  • the direction of the center line CL20eW2pa may face a direction parallel to the horizontal direction.
  • the size L20eW2pa is It is preferable that the locking portion 40 of the waistline portion 30 is smaller than the lateral size L40 (FIG. 4A) of the portion located on the other side in the lateral direction with respect to the joint portion j2.
  • the horizontal dimension L20eW2pa (FIG. 6) of said protruding part 20eW2pa can be made comparatively small, and, thereby, the said protruding part 20eW2pa becomes horizontal. It is possible to prevent problems that may occur when the size is large. That is, it is possible to prevent a problem that the protruding portion 20eW2pa is easily bent in the lateral direction in a curled shape due to the bending rigidity of the protruding portion 20eW2pa being reduced. As a result, it is possible to effectively prevent the diaper 1 from being worn while the protruding portion 20eW2pa is bent at a predetermined position PB in the lateral direction (FIG. 6) and causing the wearer to feel uncomfortable such as stiffness. Can do.
  • the portion 20eW2pa2 on the other side in the lateral direction from the bent position PB is a portion on the one side in the lateral direction. It is desirable to bend back so as to be located on the non-skin side rather than bend back so as to be located on the skin side of 20eW2pa1. Then, since the folded portion 20eW2pa2 which is the other side portion 20eW2pa2 having the maximum projecting portion 20eW2pam is pressed against the wearer's skin through the one side portion 20eW2pa1, It becomes possible to reduce the stress on.
  • the realization of bending in this way can be achieved as follows. That is, among the two nonwoven fabrics 21 and 22 constituting the front waistline portion 20, the bending stiffness value when the nonwoven fabric 21 positioned on the skin side bends at a predetermined position PB in the lateral direction is the nonwoven fabric 22 positioned on the non-skin side. May be larger than the bending rigidity value at the time of bending at the predetermined position PB.
  • the bending stiffness value can be measured by, for example, the Gurley method (Japanese Industrial Standard JIS L1085).
  • the basis weight of the nonwoven fabric 21 of the skin-side basis weight (g / m 2), and the non-skin side nonwoven fabric 22 (g / m 2 This can be realized by making it larger than.
  • the other end 20eW2 is located at a position lower than the vertical center 20eW2c at the other end 20eW2, and the other end in the lateral direction from the central 20eW2c. It is good to have the 2nd part 20eW2pb which protruded in the side.
  • the said edge part 20eW2 of the said other side can ensure a much larger contact area with the rear waistline part 30, Thereby, after the latching
  • the contours of the maximum protruding portion 20eW2pbm and its peripheral portion in the second portion 20eW2pb are also formed by a substantially arc-shaped curve convex on the other side. Therefore, the sharp image of appearance can be reduced, and this also contributes to giving a sense of security to the wearer or the wearer.
  • the shape of the maximum projecting portion 20eW2pbm and its peripheral portion may be a polygon, or may be a composite shape combining straight lines and curves.
  • the second portion 20eW2pb itself may not be provided at the other end portion 20eW2 in the lateral direction as in the example of FIG.
  • the other end 20eW2 may include the protruding portion 20eW2pa and the protruding second portion 20eW2pb one by one.
  • the other end portion 20eW2 is indented on one side in the lateral direction to the central portion 20eW2c between the protruding portion 20eW2pa and the protruding second portion 20eW2pb.
  • the shape has only one. Therefore, when the locking portion 40 is locked to the front waistline portion 20, the recessed portion 20eW2h is used as a mark indicating the longitudinal center portion 20eW2c of the front waistline portion 20, while the front waistline portion 20 is used. Further, the rear waistline portion 30 can be stacked from the front side. And thereby, the front waistline part 20 and the back waistline part 30 can be piled up by the appropriate positional relationship in the vertical direction.
  • the front waistline portion 20 is provided with the elastic members 23, 23... Thereby imparting lateral stretchability. That is, the portion provided with the elastic members 23, 23... In the front waistline portion 20 functions as a stretchable region AEL having lateral stretchability. And if the said expansion-contraction area
  • the locking force between the locking portion 40 and the male material 50 of the front waistline portion 20 can be increased.
  • the locking portion 40 is intended from the male material 50 of the front waistline portion 20 while the diaper 1 is worn. Can be effectively prevented from coming off.
  • the part in which the male material 50 was provided in the front waistline part 20 will be contained in the low expansion-contraction area
  • the front waistline portion 20 is configured to have lateral stretchability
  • the front waistline portion 20 can be made to have no stretchability in the portion where the male material 50 is provided,
  • the wrinkle along the vertical direction of the male material 50 which may arise when the said part has a stretching property can be suppressed reliably. That is, the male material 50 can be maintained substantially flat.
  • a large area contributing to the locking with the locking portion can be secured on the male member 50, thereby increasing the locking force between the male member 50 and the locking portion 40. Can do.
  • the direction of the locking protrusions of the male member 50 can be aligned with the appropriate design direction for all the locking protrusions. It contributes effectively to the improvement.
  • the male member 50 when viewed from the thickness direction (also the front-rear direction, the direction penetrating the paper surface in FIG. 6), is formed in the front waistline portion 20 at the absorbent main body. 10 may be provided in a portion overlapping with 10.
  • the rigidity of the said male material 50 can be supplemented not only by the rigidity of the nonwoven fabrics 21 and 22 of the front waistline part 20, but by the rigidity of the absorptive main body 10, Thereby, the male material 50 In some cases, it will be harder to lean on.
  • the upper end portion 50eu of the male member 50 protrudes upward from the absorbent main body 10 and does not overlap the main body 10, but more desirably, the entire male member 50 is completely absorbed by the absorbent main body. 10 is good to overlap.
  • the male member 50 is provided so as to overlap with a portion where the absorbent core 11 c is not located in the absorbent main body 10 when viewed from the thickness direction (front-rear direction).
  • the male material 50 may be provided so as to overlap the absorbent core 11c.
  • the rigidity of the male material 50 can be supplemented also by the big rigidity of the same core 11c, Thereby, the wrinkle of the same male material 51 can be suppressed further.
  • at least a part of the male material 50 may overlap the core 11c, but preferably the entire male material 50 overlaps the core 11c.
  • the rear waistline portion 30 is also provided with the elastic members 33, 33... Is granted. That is, the portion where the elastic members 33, 33,... Are provided in the rear waistline portion 30 functions as a stretchable region AEL having lateral stretchability.
  • the stretchable region AEL is also located in the other side portion 30 ps 2 in the lateral direction from the absorbent main body 10 in the rear waistline portion 30. Further, the other side portion 30ps2 overlaps the front waistline portion 20 from the front side when the locking portion 40 is locked to the male member 50 as shown in FIG. 5C.
  • the portion 30ps2 has a wrinkle along the vertical direction. Are formed side by side in the lateral direction.
  • these scissors abut against the front waistline portion 20 where the same portion 30 ps 2 overlaps. Therefore, the same portion 30ps2 is easily caught on the front waistline portion 20 based on the heel. Therefore, this also contributes to prevention of misalignment between the front waistline portion 20 and the rear waistline portion 30 that may occur after the locking portion 40 is locked to the front waistline portion 20.
  • the female material made of the nonwoven fabrics 41 and 42 is illustrated as the locking portion 40 of the rear waistline portion 30, but this is not a limitation. That is, a so-called hook-and-loop female member having a plurality of loops protruding on one side may be used.
  • the front surface of the front waistline portion 20 is provided with a male material 50 as a portion to be locked, and the rear waistline portion 30 has a non-woven fabric as the locking portion 40.
  • the female material made from 41 and 42 was provided, it is not limited to this, and the arrangement relationship between the male material and the female material may be reversed. That is, as shown in FIG. 9A, a non-woven female material 55 is provided as the locking target portion 50 on the front surface of the front waistline portion 20, while a male material 45 may be provided as the locking portion 40 of the rear waistline portion 30. .
  • this configuration from the state of FIG. 9A to the state of FIG.
  • the rear waistline portion 30 is moved to the front side so that the male material 45 of the rear waistline portion 30 is locked to the female material 55 of the front waistline portion 20.
  • the skin of the wearer's skin may be damaged by the male material 45 of the rear waistline portion 30 when being stacked on the front waistline portion 20. Therefore, from the viewpoint of preventing such a problem, it is preferable to arrange the male member 50 and the female member 40 in the arrangement relationship of this embodiment as shown in FIG.
  • a so-called three-piece type disposable diaper 1 is illustrated as an example of an absorbent article. That is, in the diaper 1, the front waistline portion 20, the rear waistline portion 30, and the absorbent main body 10 that is the crotch portion are separate members, but the invention is not limited thereto.
  • a so-called two-piece having an exterior sheet in which a rear waistline part and a front waistline part are integrated via a crotch as a first part and an absorbent main body 10 fixed to the skin side surface of the exterior sheet as a second part. It may be a disposable disposable diaper.
  • the rubber thread is illustrated as an example of the elastic members 16, 23, and 33, but the present invention is not limited thereto.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne un article absorbant (1) qui a une direction longitudinale, une direction transversale et une direction d'avant en arrière. Les éléments suivants sont proposés : une section taille avant (20) qui suit la direction transversale ; une section taille arrière (30) qui suit la direction transversale et qui, conjointement avec la section taille avant (20), est destinée à former une ouverture (BH) de taille dans la direction longitudinale supérieure ; et une section entrejambe (10) qui est positionnée plus bas que (20) et (30) et qui est disposée entre (20) et (30). Une section d'extrémité (20eW1) sur un premier côté de la section taille avant (20) dans la direction transversale et une section d'extrémité (30eW1) sur un premier côté de la section taille arrière (30) sont jointes. Sur une section d'extrémité (30eW2) sur un second côté de la section taille arrière (30) dans la direction transversale, une section de mise en prise (40) qui peut venir en prise avec la section de taille avant (20) est prévue. Une section d'extrémité (20eW2) sur le second côté de la section taille avant (20) comprend, à une position plus haute qu'une section centrale dans la direction longitudinale (20eW2c) d'une section de même extrémité (20eW2), une partie (20eW2pa) qui fait saillie plus vers le second côté que la section centrale (20eW2c).
PCT/JP2017/039515 2016-12-26 2017-11-01 Article absorbant WO2018123256A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-250717 2016-12-26
JP2016250717A JP6402165B2 (ja) 2016-12-26 2016-12-26 吸収性物品

Publications (1)

Publication Number Publication Date
WO2018123256A1 true WO2018123256A1 (fr) 2018-07-05

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PCT/JP2017/039515 WO2018123256A1 (fr) 2016-12-26 2017-11-01 Article absorbant

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JP (1) JP6402165B2 (fr)
WO (1) WO2018123256A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003079665A (ja) * 2001-09-13 2003-03-18 Uni Charm Corp パンツ型使い捨て着用物品
JP2003533278A (ja) * 2000-05-16 2003-11-11 キンバリー クラーク ワールドワイド インコーポレイテッド 再締結可能なラップシームを備える衣類の製造方法
JP2006314771A (ja) * 2005-04-11 2006-11-24 Oji Nepia Kk パンツ型使い捨ておむつ
JP2008104874A (ja) * 2006-09-29 2008-05-08 Daio Paper Corp 紙おむつ及びその製造における外装シート部分の形成方法
WO2012011366A1 (fr) * 2010-07-23 2012-01-26 株式会社瑞光 Article à porter jetable précédemment formé sous la forme d'un article à tirer vers le haut et procédé pour fabriquer celui-ci

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003533278A (ja) * 2000-05-16 2003-11-11 キンバリー クラーク ワールドワイド インコーポレイテッド 再締結可能なラップシームを備える衣類の製造方法
JP2003079665A (ja) * 2001-09-13 2003-03-18 Uni Charm Corp パンツ型使い捨て着用物品
JP2006314771A (ja) * 2005-04-11 2006-11-24 Oji Nepia Kk パンツ型使い捨ておむつ
JP2008104874A (ja) * 2006-09-29 2008-05-08 Daio Paper Corp 紙おむつ及びその製造における外装シート部分の形成方法
WO2012011366A1 (fr) * 2010-07-23 2012-01-26 株式会社瑞光 Article à porter jetable précédemment formé sous la forme d'un article à tirer vers le haut et procédé pour fabriquer celui-ci

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JP6402165B2 (ja) 2018-10-10
JP2018102493A (ja) 2018-07-05

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