WO2016103832A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2016103832A1
WO2016103832A1 PCT/JP2015/078014 JP2015078014W WO2016103832A1 WO 2016103832 A1 WO2016103832 A1 WO 2016103832A1 JP 2015078014 W JP2015078014 W JP 2015078014W WO 2016103832 A1 WO2016103832 A1 WO 2016103832A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
cooling sensation
region
thickness direction
sheet
Prior art date
Application number
PCT/JP2015/078014
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
俊幸 谷尾
高橋　雄二
智之 藤田
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201580070567.9A priority Critical patent/CN107106348B/zh
Publication of WO2016103832A1 publication Critical patent/WO2016103832A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use

Definitions

  • the present invention relates to an absorbent article.
  • Patent Document 1 discloses an absorbent article in which a cooling sensation agent is disposed in regions on both sides in the width direction of an absorbent body.
  • the cooling sensation component comes into contact with the user's skin, so that a refreshing feeling can be given to the user.
  • Such an absorbent article is usually packaged in a small folded state and provided to the user.
  • the cooling sensation agent may be transferred to the absorber side by being overlapped so that the region where the cooling sensation agent is disposed and the absorber are opposed to each other.
  • the cooling sensation agent moves to the absorber side, when the user uses (wears) the absorbent article, excessive irritation by the cooling sensation agent acts on sensitive areas of the skin such as the vaginal opening, May cause discomfort.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a foldable absorbent article that is less likely to cause discomfort to the user.
  • the main invention for achieving the above object is that the absorber that absorbs the liquid, the top sheet that covers the absorber in the thickness direction from the skin side of the user, and the absorber from the non-skin side of the user
  • the present invention when an absorbent article is used, it is possible to prevent the user's vaginal opening and the like from being excessively stimulated by a cooling sensation agent, and to make it difficult for the user to feel uncomfortable. it can.
  • FIG. 1 is a schematic cross-sectional view illustrating a configuration of a sanitary napkin 1.
  • 3A and 3B are diagrams illustrating a method of folding the napkin 1 and individually packaging it. It is a top view of the sanitary napkin 1 of the state which folded the side flap 50 in the horizontal direction inner side.
  • FIG. 5 is a diagram showing a CC cross section of FIG. 4.
  • An absorber that absorbs liquid a top sheet that covers the absorber in the thickness direction from the skin side of the user; and a back sheet that covers the absorber in the thickness direction from the non-skin side of the user.
  • the absorbent article is provided with side flaps extending outward from both lateral sides of the absorbent body, and a cooling agent is applied to a predetermined region of the side flap, covering the absorbent body.
  • the side flaps When the side flaps are folded toward the center in the lateral direction so that the skin side surface of the top sheet and the skin side surface of the side flaps face each other in the thickness direction, the side flaps The said predetermined area
  • the absorbent article characterized by the above-mentioned.
  • the component of the cooling sensation agent provided on the side flap is difficult to transfer to the region including the center line of the absorber.
  • it can control that an excessive stimulus by a cooling sensation agent acts on a user's skin, and makes it difficult to give a user discomfort.
  • the absorbent body is formed with a pair of hinge portions extending in the vertical direction, and when the side flaps are folded toward the center in the lateral direction, It is desirable that the predetermined area where the cooling sensation agent is applied and an area in contact with the user's vaginal opening among areas sandwiched between the pair of hinge portions do not overlap in the thickness direction. .
  • the cooling sensation agent is a particle, and at least a part of the cooling sensation agent is bonded to the side flap by an adhesive.
  • the cooling sensation agent is detached from the side flaps when the absorbent article is used, It is suppressed that it moves and adheres to an unexpected part. Thereby, it is suppressed that an unexpected irritation
  • the side flap is configured by laminating a first sheet member and a second sheet member in the thickness direction,
  • the cooling sensation agent is preferably provided between the stacked first sheet member and second sheet member.
  • the first sheet member is a member disposed on the skin side
  • the second sheet member is a member disposed on the non-skin side
  • the first sheet member is a nonwoven fabric, It is desirable that the fiber density on the non-skin side surface of the first sheet member is higher than the fiber density on the skin side surface of the first sheet member.
  • the cooling sensation agent is disposed on the surface of the first sheet member having a high density of fibers, the cooling sensation agent passes through the gaps between the fibers of the nonwoven fabric, and the Since the movement to the skin side of the sheet member 1 is suppressed and the possibility that the cooling sensation agent comes into contact with the user's skin can be reduced, it is possible to make the user less likely to feel discomfort.
  • the side flap when the side flap is folded to the center side in the lateral direction along a fold line extending in the longitudinal direction, the predetermined region where the cooling sensation agent is applied to the side flap. It is desirable that the fold line does not overlap in the thickness direction.
  • the influence of stress or the like generated during bending hardly acts on the particles of the cooling sensation agent. Therefore, local change in the quality of the cooling sensation agent particles is suppressed, and the cooling sensation agent is easily kept in a homogeneous state.
  • a region where the top sheet is folded in the thickness direction is formed at both ends of the absorbent body in the lateral direction, and the side flaps are arranged in the lateral center side.
  • the folding sheet is folded, at least a part of the predetermined area where the cooling sensation agent is applied with the side flaps is an area where the top sheet is folded in the thickness direction and the thickness direction. It is desirable that they overlap each other.
  • the top sheet is folded when the side flaps are folded. It becomes easy for the cooling sensation agent to come into contact with the formed area. Therefore, the component of the cooling sensation is preferentially transferred to the folded region, and the other region (that is, the region sandwiched between the pair of hinge portions by the absorber) has the cooling sensation agent. It becomes difficult to transfer. Thereby, it can be made hard to give a user discomfort.
  • FIG. 1 is a plan view illustrating the configuration of the sanitary napkin 1.
  • FIG. 2 is a schematic cross-sectional view illustrating the configuration of the sanitary napkin 1.
  • each direction is defined as shown in FIGS. That is, the direction along the product longitudinal direction of the sanitary napkin 1 is defined as “vertical direction”.
  • the vertical direction has a “front side” and a “rear side”.
  • the “front side” is a direction that becomes the ventral side of the user when the sanitary napkin 1 is used
  • the “rear side” is a direction that becomes the back side of the user when the sanitary napkin 1 is used.
  • a direction orthogonal to the vertical direction that is, a direction along the product width direction is referred to as a “lateral direction”.
  • the direction perpendicular to the vertical direction and the horizontal direction is the “thickness direction”, and the side that contacts the wearer's skin (the upper side in FIG. 2) when wearing the sanitary napkin 1 is the “skin side” and the opposite side ( The lower side in FIG. 2 is defined as “non-skin side”.
  • the sanitary napkin 1 (hereinafter also simply referred to as “napkin 1”) includes an absorbent body 10 that absorbs liquid, a top sheet 20 that covers the absorbent body 10 in the thickness direction from the user's skin side, It has the back sheet 30 which covers the absorber 10 from the skin side to the thickness direction, and the side flap 50 provided in the horizontal direction outer side of the absorber 10.
  • the absorbent body 10 is a long and long member along the longitudinal direction, and includes hydrophilic fibers, pulp, and the like, and can efficiently absorb and retain fluids such as body fluids and blood drainage.
  • the absorbent body 10 may be formed by laminating hydrophilic fibers or powders by the airlaid method, or may be an airlaid sheet obtained by forming hydrophilic fibers or powders into a sheet shape by the airlaid method.
  • the top sheet 20 is a liquid-permeable sheet member that allows liquid such as body fluid to pass therethrough, and is formed of, for example, a nonwoven fabric.
  • a member other than a non-woven fabric may be used as long as it is a sheet member having a structure that allows liquid to pass through and is a safe member when contacting the user's skin when the napkin 1 is used.
  • a woven fabric or a mesh sheet may be used.
  • the top sheet 20 is larger than the absorbent body 10 in the vertical direction and the horizontal direction, and can cover the entire region of the absorbent body 10.
  • a second sheet 25 is provided between the top sheet 20 and the absorbent body 10 in the thickness direction.
  • the second sheet 25 is configured by a member equivalent to the top sheet 20.
  • a part of the top sheet 20 extends to the outside in the lateral direction of the absorbent body 10 to form a side flap 50 described later. Further, as shown in FIG. 2, the top sheet 20 is once folded inward in the lateral direction in the ⁇ folding region 20 fr overlapping in the thickness direction with the regions at both ends in the lateral direction of the absorbent body 10, and then again in the lateral direction. It is folded outward and extends outward in the lateral direction. That is, the top sheet 20 is folded in the thickness direction in the ⁇ folding region 20fr. In addition, after the ⁇ folding region 20fr is formed, the folded top sheets 20 are joined in the thickness direction by embossing the portion in the thickness direction. As described above, when the top sheet 20 is folded, the thickness in the thickness direction of the ⁇ folded region 20fr becomes thicker than the thickness of other regions (regions other than the ⁇ folded region 20fr of the top sheet 20). Yes.
  • the back sheet 30 is a non-liquid permeable sheet member.
  • a breathable resin film is bonded to a non-woven fabric such as a film mainly composed of polyethylene or propylene, a breathable resin film, spunbond, or spunlace. Formed by a sheet. Since the back sheet 30 is non-liquid permeable, the liquid that permeates the top sheet 20 and is absorbed by the absorber 10 when the napkin 1 is used may ooze out to the clothing side (non-skin side) such as underwear. It is suppressed. It is desirable that the back sheet 30 has substantially the same shape as the top sheet 20 and has such flexibility that the user does not feel uncomfortable when using the napkin 1.
  • a part of the back sheet 30 extends to the outside in the lateral direction of the absorbent body 10 similarly to the top sheet 20 to form a side flap 50 described later.
  • an adhesive surface 31 ⁇ / b> A to which an adhesive such as a hot melt adhesive (hereinafter also referred to as HMA) is applied is formed at the center in the lateral direction of the non-skin side surface of the backsheet 30.
  • adhesive surfaces 31B are formed on both lateral sides of the adhesive surface 31A (the non-skin side surface of the side flap 50) (see FIG. 2).
  • the adhesive surfaces 31 ⁇ / b> A and 31 ⁇ / b> B are formed so that the napkin 1 is attached to the user's underwear when the napkin 1 is used so that the position does not shift.
  • the adhesive surfaces 31A and 31B are covered with a packaging sheet 60 described later and a protective sheet (not shown). In the state covered with such a protective sheet, the adhesiveness of the adhesive surfaces 31A and 31B is not expressed.
  • the side flaps 50 are formed by laminating the top sheet 20 and the back sheet 30 extending outward from both lateral sides of the absorbent body 10 in the thickness direction and bonding them together (see FIG. 2).
  • the side flaps 50 may be formed of another member different from the top sheet 20 and the back sheet 30.
  • the side flap 50 may be configured by laminating a first sheet member different from the top sheet 20 and a second sheet member different from the back sheet 30.
  • a reinforcing sheet 55 for reinforcing the strength of the side flap 50 is provided between the top sheet 20 and the back sheet 30 in the thickness direction.
  • the side flap 50 can be folded inward in the lateral direction with a fold line 50f extending in the vertical direction at the lateral outer end of the ⁇ folding region 20fr as a base point.
  • the napkins 1 can be compactly packaged by folding the side flaps 50 along the folding line 50f. The individual packaging of the napkin 1 will be described later with reference to FIG.
  • the side flap 50 of the present embodiment includes a wing portion 51 extending outward in the lateral direction from a vaginal opening contact region provided closer to the front side than the longitudinal center of the absorber 10. , And a hip flap portion 52 extending outward in the lateral direction from the region in the longitudinal rear side of the vaginal opening contact region.
  • the “vagina opening contact area” is an area that comes into contact with the user's vaginal opening when the napkin 1 is used (when worn).
  • the wing 51 is bent to the non-skin side along the fold line 50f when the napkin 1 is used, and the adhesive surface 31B is attached to the user's underwear, so that the napkin 1 is displaced in the crotch portion of the user. Make it difficult to occur.
  • the hip flap 52 is provided to extend laterally outward on the longitudinal rear side (back side) of the napkin 1, and when used in a state where the napkin 1 is deployed laterally as shown in FIG.
  • the user's buttocks can be covered widely. For example, even when blood drainage or the like wraps around the buttocks side while the user is lying on his / her back, the hip flap portion 52 covers the buttocks over a wide range, so that blood drainage or the like is not performed on the napkin 1. Prevents the user's underwear from getting dirty.
  • the hinge part 110 is a linear part formed by extending in the longitudinal direction of the absorbent body 10, and the absorbent body 10 is bent in the lateral direction along the hinge part 110.
  • a force that causes the absorbent body 10 to contract in the lateral direction is applied.
  • the absorbent body 10 is bent with the hinge portion 110 as a base point, thereby absorbing the absorbent body 10.
  • the hinge part 110 functions as a bending guide part of the absorber 10. Thereby, it becomes easy for the absorber 10 to maintain favorable liquid absorptivity.
  • the hinge part 110 of this embodiment is formed in a curved shape by arranging a plurality of compressed grooves formed by embossing or the like on the skin side surface of the absorbent body 10 (and the top sheet 20).
  • embossing is actually given to the thickness direction of an absorber.
  • a pair of such curved hinge portions 110 are formed symmetrically with respect to the horizontal center line of the absorbent body 10.
  • the pair of hinge portions 110 are arranged so as to have a predetermined interval in the lateral direction.
  • a laterally inner force acts on the absorbent body 10 so that the region sandwiched between the pair of hinge portions 110 is deformed so as to be convex toward the skin side. Therefore, it is possible to efficiently absorb liquid such as blood drainage and to give a good fit to the user.
  • the distance between the pair of hinge portions 110 is wide in the vicinity of the central portion in the vertical direction (see FIG. 1), and the structure easily absorbs fluid such as blood drainage.
  • a plurality of hole portions 120 are formed in a region sandwiched between the pair of hinge portions 110.
  • the hole 120 is a hole that penetrates the top sheet 20 and the absorbent body 10 in the thickness direction, and by forming a plurality of the hole parts 120, the rigidity of the absorbent body 10 is partially increased, so Shaking is suppressed. That is, in the region where the hole 120 is formed, the absorber 10 is easily maintained in a planar shape as compared with the region where the hole 120 is not formed. Further, the provision of the hole portion 120 increases the air permeability when using the napkin 1 and has an effect of making it difficult to cause stuffiness.
  • the region sandwiched between the pair of hinge portions 110 maintains the planar shape and is deformed as described above.
  • the arrangement and quantity of the holes 120 are determined so that (deformation that protrudes toward the skin side) is possible.
  • a cooling sensation region CR in which a cooling sensation agent is applied to a predetermined region of the side flap 50 is formed.
  • the “cooling sensation agent” is a particle having a multiple capsule structure in which a cooling agent such as menthol or camphor is used as a core and the periphery thereof is covered with a water-soluble substance such as starch.
  • a predetermined amount of moisture for example, user's sweat or water vapor
  • the water-soluble substance dissolves and the internal cooling agent is released to the outside, which can give the user a refreshing feeling.
  • the cooling sensation agent By making the cooling sensation agent into particles having such a multiple capsule structure, a refreshing sensation can be efficiently given to the user when the napkin 1 is stuffy due to sweat.
  • the napkin 1 since the napkin 1 has a large area of the hip flap 52, the user's buttocks can be covered widely. It tends to occur. Even in such a case, by providing the cool feeling region CR in the hip flap portion 52, it is possible to give the user a refreshing feeling and to reduce discomfort caused by stuffiness.
  • the cooling agent particles may have a structure in which the cooling agent is covered with a porous material capable of adsorbing molecules in a large number of pores.
  • the refreshing agent may be supported by a porous material such as silica gel or zeolite and replaced with water vapor or the like under predetermined conditions to release the refreshing agent to the outside of the porous material.
  • the cooling sensation region CR is a belt-like shape extending in the vertical direction while having a predetermined width in the horizontal direction in a region laterally outside the folding line 50 f of the side flap 50. It is formed as a region. As shown in FIG. 2, the cooling sensation region CR is formed on the non-skin side surface of the top sheet 20. That is, in this embodiment, the cooling sensation agent is provided between the top sheet 20 and the back sheet 30 stacked in the side flap 50. Thereby, since direct contact with a cooling sensation agent and a user's skin is suppressed, it becomes difficult to give an excessive irritation
  • the cooling sensation agent of the present embodiment is a solid particle
  • the cooling area CR is provided on the skin side surface of the top sheet 20, the cooling sensation when the napkin 1 is used.
  • the cooling sensation agent particles may move and adhere to the vaginal opening contact region or the like, which may cause discomfort to the user.
  • the cooling sensation region CR is provided between the top sheet 20 and the back sheet 30, even if the cooling sensation agent particles are detached from the cooling sensation region CR, the separated cooling sensation agent particles are the top. Since it is easy to be held between the sheet 20 and the back sheet 30 and the possibility that the cooling sensation agent is in direct contact with the skin of the user is low, it is difficult for the user to feel discomfort.
  • a predetermined region on the non-skin side surface of the top sheet 20 (region indicated by the shaded portion in FIG. 1).
  • An adhesive such as hot melt adhesive (HMA) is applied in a strip shape.
  • the adhesive is applied, for example, from the coater coating device provided on the production line to the HMA while the base sheet of the top sheet 20 is conveyed along the vertical direction (MD direction) in the manufacturing process of the napkin 1. Is performed by coating.
  • HMA is applied to the entire area indicated by the shaded portion in FIG.
  • the particles of the cooling sensation agent are applied to the area where the HMA is applied.
  • the application of the cooling sensation agent is performed by, for example, spraying particles of the cooling sensation agent on the region where the HMA is applied from the vertically upper side of the base sheet of the top sheet 20 conveyed in the MD direction.
  • the particles of the cooling sensation agent are firmly bonded to the side flap 50 (top sheet 20) by the adhesive (such as HMA), and the cooling sensation agent is detached from the cooling sensation region CR when the napkin 1 is used. It can suppress that a cooling agent adheres to the unexpected location of the napkin 1.
  • the nonwoven fabric used as a material of the top sheet 20 is configured by entwining a plurality of fibers
  • the density of the nonwoven fabric is not uniform as a whole nonwoven fabric, and a gradient of density in the thickness direction is produced in the process of manufacturing the nonwoven fabric.
  • the nonwoven fabric is arrange
  • positioned on the non-skin side surface with high fiber density by the top sheet 20 pass through the clearance gap between the fibers of a nonwoven fabric, and move to the skin side from the non-skin side of a thickness direction.
  • the cooling feeling region CR can be stably formed.
  • the top sheet 20 and the back sheet 30 are joined in the thickness direction.
  • an adhesive is also applied to the skin side surface of the back sheet 30 (the surface facing the top sheet 20)
  • the particles of the cooling sensation agent are made stronger in the cooling sensation region CR of the side flap 50.
  • the top sheet 20 and the back sheet 30 can be joined more firmly.
  • the peripheral edge of the side flap 50 is subjected to a sealing process. This makes it difficult for the joint between the top sheet 20 and the back sheet 30 to be peeled off, and makes it easier to prevent the particles of the cooling sensation agent disposed between the top sheet 20 and the back sheet 30 from leaking outside the side flap 50.
  • FIGS. 1 and 3B are diagrams illustrating a method of folding the napkin 1 and individually packaging it.
  • a packaging sheet 60 is used for individual packaging of the napkin 1.
  • the packaging sheet 60 is a sheet-shaped packaging member for individually packaging the napkins 1 and is a member that is removed when the napkin 1 is used.
  • As a material of the packaging sheet 60 for example, various films such as a plastic film and a nylon film, a nonwoven fabric, a film obtained by laminating a nonwoven fabric, and the like are used.
  • the packaging sheet 60 is attached to the adhesive surface 31A formed on the non-skin side surface of the back sheet 30 of the unfolded napkin 1 (that is, the napkin 1 in the state of FIG. 1). . Then, as shown in FIG. 3A, the side flaps 50 are folded inward in the lateral direction along the folding line 50f. By folding the side flap 50, the skin side surface of the wing part 51 and the hip flap part 52 and the skin side surface of the top sheet 20 face each other in the thickness direction skin side region of the absorbent body 10. Subsequently, the napkin 1 and the packaging sheet 60 are integrally folded in the vertical direction.
  • the napkin 1 (and the packaging sheet 60) is tri-folded in the vertical direction at the first fold line F1 and the second fold line F2 set at predetermined positions in the vertical direction.
  • the napkin 1 is folded in the vertical direction so that the skin side surface is on the inner side at the first fold line F1.
  • the napkin 1 is folded in the vertical direction so that the skin-side surface is inward.
  • both end portions of the packaging sheet 60 in the horizontal direction are joined along the vertical direction using a known sealing means such as ultrasonic welding or heat welding.
  • the fixing tape 61 is affixed to the central portion of the packaging sheet 60 in the lateral direction.
  • the fixing tape 61 is affixed to the outer surface of the packaging sheet 60 so as to be peeled off.
  • the packaging sheet 60 may be peeled off before the napkin 1 is used, or the package of the napkin 1 may be unfolded. It is suppressed. In this manner, a compact package as shown in FIG. 3B is formed.
  • the folded napkin 1 is unfolded according to the reverse procedure. Then, the packaging sheet 60 is peeled off from the napkin 1 and the exposed adhesive surface 31A is affixed to the underwear so that the napkin 1 is worn so as not to be displaced.
  • the side flaps 50 are folded inward in the lateral direction (see FIG. 3A), so that the cooling sensation region CR formed on the side flaps 50 and the skin side of the absorbent body 10 A part of the surface overlaps in the thickness direction. And in the said overlapping part, the component of the cooling sensation agent of the cooling sensation area
  • region CR may transfer to the absorber 10 side, and may adhere to the skin side surface of the absorber 10 (top sheet 20). If the component of the cooling sensation agent adheres to the absorbent body 10, the cooling sensation agent directly acts on the skin of the user in contact with the absorbent body, which may cause a strong irritation to the user.
  • the overlap in the thickness direction between the cooling sensation region CR and the absorber 10 is limited to a predetermined region, thereby making it difficult for the user to feel uncomfortable.
  • this point will be described.
  • FIG. 4 is a plan view of the sanitary napkin 1 with the side flaps 50 folded inward in the lateral direction.
  • FIG. 5 is a diagram showing a CC cross section of FIG. In FIG. 4, in order to explain the positional relationship between the cooling region CR of the folded side flap 50 and the hinge portion 110 or the hole portion 120, the hinge of the portion that is actually hidden behind the side flap 50 and cannot be seen.
  • the part 110 and the hole part 120 are also indicated by solid lines.
  • the cooling sensation region CR (the shaded portion in FIG. 4) is disposed on both lateral sides of the absorbent body 10 with the side flaps 50 folded inward in the lateral direction. become. Specifically, the cooling sensation region CR is disposed at a position that does not overlap in the thickness direction with the central region including the horizontal center line of the absorbent body 10. In particular, in the vaginal opening contact region, the cooling sensation region CR is disposed at a position that does not overlap with the region sandwiched between the pair of hinge portions 110 by the absorber 10 in the thickness direction.
  • the region sandwiched between the pair of hinge portions 110 (the central region in the lateral direction of the absorbent body 10) is a region that comes into contact with the user's skin when the napkin 1 is used. Therefore, the component of the cooling sensation region CR is sandwiched between the pair of hinge portions 110 of the absorbent body 10 so that the region and the cooling sensation region CR do not overlap in the thickness direction. Transition to the region can be suppressed. This makes it difficult for the user to feel uncomfortable. In particular, since the vaginal opening contact area shown in FIG.
  • the cooling sensation region CR disposed in the folded hip flap portion 52 partially overlaps the region sandwiched between the pair of hinge portions 110. .
  • this area is an area that comes into contact with the user's buttocks when the napkin 1 is used, the user feels uncomfortable even when stimulation by the cooling sensation agent is applied, compared to the vaginal opening contact area. Hateful.
  • the buttock side since a wide area is covered by the hip flap part 52, it is easy to generate stuffiness. Therefore, even if the component of the cooling sensation agent is transferred to a partial area on the absorber side, it is used. It is easy to give a refreshing feeling, not discomfort to the person. Therefore, even if the cooling sensation region CR of the hip flap portion 52 overlaps with a part of the region sandwiched between the pair of hinge portions 110 in the region on the rear side in the vertical direction of the napkin 1, a problem hardly occurs.
  • the cooling sensation region CR is formed so as not to overlap with a fold line 50f that is a base point for folding the side flap 50 (see FIG. 4). That is, when the side flap 50 is folded inward in the lateral direction, the cooling sensation region CR itself is not folded.
  • the cooling sensation region CR is formed by joining a particulate cooling sensation agent to a predetermined region of the top sheet 20 with an adhesive. If the cooling sensation region CR overlaps with the folding line 50f, the quality of the cooling sensation agent particles may change in the overlapping portion due to the influence of stress or the like generated during bending.
  • the refreshing agent which is the core of the cooling sensation agent
  • the refreshing agent is exposed to the outside and volatilizes, and in this part, a refreshing feeling can be given to the user when using the napkin 1. It may be impossible to do so.
  • stress or the like due to bending does not act, so that the cooling sensation agent is easily maintained in a uniform state for the entire region of the cooling sensation region CR.
  • the wing portion 51 is folded back to the non-skin side along the fold line 50f, and the fold line 50f is displayed in the region where the wing portion 51 is formed (that is, the vaginal opening contact region). It will be in the state contact
  • the cooling sensation region CR overlaps with the fold line 50f, the user's groin is stimulated by the chilling agent along the fold line 50f, causing discomfort to the user.
  • the folding line 50f and the cooling sensation region CR do not overlap in the thickness direction even in the region where the wing portion 51 is formed, such discomfort in the inguinal portion is caused to the user. It is hard to let you.
  • the cooling sensation region CR is sandwiched at least by the back sheet 30 in the thickness direction.
  • all the portions of the cooling sensation region CR where the cooling sensation agent is applied are in a state of being disposed between the thickness directions of the back sheet 30.
  • the back sheet 30 is composed of a resin film or the like, even if the particles of the cooling sensation agent are detached from the cooling sensation region CR with the side flaps 50 folded, the cooling sensation agent particles pass through the back sheet 30. Thus, problems such as leakage to the outside of the napkin 1 are unlikely to occur.
  • the reinforcing sheet 55 is provided between the cooling sensation region CR and the back sheet 30, it is easier to suppress leakage of cooling sensation agent particles to the outside.
  • the cooling sensation region CR in a state where the side flap 50 is folded inward in the lateral direction, at least a part of the cooling sensation region CR overlaps with the ⁇ folding region 20fr in the thickness direction.
  • the ⁇ folded region 20fr since the ⁇ folded region 20fr is formed by folding the top sheet 20 in the thickness direction, the ⁇ folded region 20fr has a thickness in the thickness direction as compared with other regions of the top sheet 20. The height is high (thick). Therefore, when the side flap 50 is folded, the cooling sensation region CR is first in a positional relationship facing the ⁇ folding region 20fr.
  • the component of the cooling sensation agent tends to preferentially transfer to the ⁇ folding region 20fr.
  • the cooling sensation agent is difficult to transfer to the region sandwiched between the pair of hinge portions 110 of the absorber 10. Become. Thereby, at the time of use of the napkin 1, it can be made hard to give a user a discomfort.
  • the cooling sensation region when forming the cooling sensation region, first, an adhesive such as HMA is applied to a predetermined region on the non-skin side surface of the top sheet 20, and the region to which the adhesive is applied is cooled.
  • an adhesive such as HMA
  • the method for adhering the sensitizer particles has been described, the method for forming the cooling sensation region is not limited to this.
  • the cooling sensation region may be formed by directly applying a liquid of the cooling sensation agent to a predetermined region on the non-skin side surface of the top sheet 20 using a liquid cooling sensation agent instead of particles. .
  • a method may be used in which a cooling sensation agent is attached in advance to a thin film sheet member, and the sheet member to which the cooling sensation agent is attached is attached to a predetermined region on the non-skin side surface of the top sheet 20. .
  • sanitary napkin 1 is folded in the vertical direction using a plurality of folds (F1 and F2 in FIG. 3A) along the horizontal direction as a base point. This is not the case.
  • the sanitary napkin 1 may be folded in the horizontal direction with a fold along the vertical direction as a base point, or may be folded in both the vertical direction and the horizontal direction.
  • the pair of hinge portions 110 disposed mainly in the vaginal opening contact area has been described, but the hinge portions 110 are substantially in the vertical direction of the absorbent body 10 as shown in FIG. It is formed over the entire area.
  • the hinge part 110 was formed when the some pressing groove was located in a line, it may be formed as one line (curve) which the whole connected.
  • the plurality of hole portions 120 are formed in the region sandwiched between the pair of hinge portions 110.
  • the hole portion 120 is formed in the region sandwiched between the pair of hinge portions 110.
  • a region that is formed and a region that is not formed may be provided.
  • the rigidity of the absorber 10 is lower than that in the region where the hole 120 is formed. Therefore, the rigidity of the absorber 10 can be increased by changing the arrangement and number of the holes 120. Can be partially adjusted.
  • the hole 120 is not provided in the region of the laterally central portion on the rear side in the longitudinal direction of the absorbent body 10, the rigidity of the region is reduced, and the fit feeling at the buttocks of the absorbent body 10 can be increased. it can.
  • sanitary napkins 1 sanitary napkins (napkins), 10 Absorber, 20 top sheet, 20 fr ⁇ folding region, 25 second seat, 30 back sheet, 31A adhesive surface, 31B adhesive surface, 50 side flaps, 50f fold line, 51 wing, 52 hip flap, 55 Reinforcement sheet, 60 packaging sheet, 61 fixing tape, 110 hinge part, 120 holes, CR cold area, F1 first fold, F2 second fold

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
PCT/JP2015/078014 2014-12-25 2015-10-02 吸収性物品 WO2016103832A1 (ja)

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JP2014-263322 2014-12-25
JP2014263322A JP5970533B2 (ja) 2014-12-25 2014-12-25 吸収性物品

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170367901A1 (en) * 2016-06-27 2017-12-28 Deborrah R. Peoples Ellis Enhanced sanitary pad

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KR102625631B1 (ko) * 2019-03-06 2024-01-16 유니챰 가부시키가이샤 흡수성 물품
CN112107430B (zh) * 2019-06-20 2023-07-14 尤妮佳股份有限公司 短裤型吸收性物品
CN112107431B (zh) * 2019-06-20 2023-07-11 尤妮佳股份有限公司 短裤型吸收性物品
CN115414185B (zh) * 2022-08-31 2023-08-25 山东叶之梦智能科技有限公司 一种高干爽卫生巾及其生产工艺
CN115252285A (zh) * 2022-09-06 2022-11-01 广东川田卫生用品有限公司 一种具备液体扩散提示功能的卫生巾

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Publication number Priority date Publication date Assignee Title
JPH11178852A (ja) * 1997-12-22 1999-07-06 Kao Corp 吸収性物品
US20100191205A1 (en) * 2009-01-29 2010-07-29 Sca Hygiene Products Ab Opening system for absorbent articles
JP2010234031A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2010234027A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2010234028A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2012010968A (ja) * 2010-06-30 2012-01-19 Unicharm Corp 吸収性物品
WO2014023090A1 (en) * 2012-08-08 2014-02-13 Daiwabo Holdings Co., Ltd. Nonwoven, sheet for absorbent article, and absorbent article using the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11178852A (ja) * 1997-12-22 1999-07-06 Kao Corp 吸収性物品
US20100191205A1 (en) * 2009-01-29 2010-07-29 Sca Hygiene Products Ab Opening system for absorbent articles
JP2010234031A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2010234027A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2010234028A (ja) * 2009-03-31 2010-10-21 Uni Charm Corp 吸収性物品
JP2012010968A (ja) * 2010-06-30 2012-01-19 Unicharm Corp 吸収性物品
WO2014023090A1 (en) * 2012-08-08 2014-02-13 Daiwabo Holdings Co., Ltd. Nonwoven, sheet for absorbent article, and absorbent article using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170367901A1 (en) * 2016-06-27 2017-12-28 Deborrah R. Peoples Ellis Enhanced sanitary pad

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JP2016120208A (ja) 2016-07-07
JP5970533B2 (ja) 2016-08-17
CN107106348B (zh) 2018-09-04
CN107106348A (zh) 2017-08-29

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