WO2017002206A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2017002206A1
WO2017002206A1 PCT/JP2015/068879 JP2015068879W WO2017002206A1 WO 2017002206 A1 WO2017002206 A1 WO 2017002206A1 JP 2015068879 W JP2015068879 W JP 2015068879W WO 2017002206 A1 WO2017002206 A1 WO 2017002206A1
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WO
WIPO (PCT)
Prior art keywords
exterior member
absorbent article
absorbent
length
region
Prior art date
Application number
PCT/JP2015/068879
Other languages
English (en)
Japanese (ja)
Inventor
瀧野　俊介
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 PCT/JP2015/068879 priority Critical patent/WO2017002206A1/fr
Priority to JP2016513932A priority patent/JP6026053B1/ja
Priority to CN201580081031.7A priority patent/CN107683127B/zh
Publication of WO2017002206A1 publication Critical patent/WO2017002206A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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
    • A61F13/51—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 outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin

Definitions

  • the present invention relates to an absorbent article.
  • Disposable diapers and the like are known as absorbent articles that absorb excrement.
  • a stretchable member is provided on the waist outer member covering the waist of the wearer, and when worn, the stretchability of the waist outer member enhances fit on the waist of the wearer and the disposable diaper It does not shift the position of.
  • the skin of the wearer may be easily rashed by being tightened by such a stretchable exterior waist covering member.
  • a technique for suppressing skin irritation and the like when the diaper is worn by providing slits (cuts) on the surface of the waist exterior member and securing air permeability by the slits (for example, a patent).
  • Literature 1 proposes a technique for suppressing skin irritation and the like when the diaper is worn by providing slits (cuts) on the surface of the waist exterior member and securing air permeability by the slits.
  • the waist exterior member by providing the slit in the waist exterior member, there may be a problem in strength, such as the waist exterior member being easily broken starting from the slit.
  • the waist exterior member is a portion where a strong force acts by an operation such as pinching and pulling up and down with a finger when attaching and detaching a diaper, there is a risk that sufficient strength can not be secured by providing the slit. is there.
  • the present invention has been made in view of the problems as described above, and an object of the present invention is to provide a disposable diaper capable of securing sufficient strength while having good air permeability. .
  • the main invention for achieving the above object is an absorbent article having a longitudinal direction and a lateral direction which are orthogonal to each other, and covering a ventral side of the wearer from the front, and an abdominal exterior member covering the ventral side of the wearer; A back side covering member covering the back side, and an absorber absorbing the excrement, one end side is overlapped and joined to a part of the ventral side outside member, and the other end side is overlapped to a part of the back side outside member And the ventral side exterior member and the back side exterior member overlap the absorbent main body in the longitudinal direction and do not overlap the absorbent main body in the lateral direction.
  • At least one exterior of the house A plurality of linear cuts passing through the one exterior member while having a predetermined length in the lateral direction are provided at predetermined intervals in the longitudinal direction and the lateral direction, and the upper region A value obtained by dividing the total length of the linear cuts in the upper area by the length in the vertical direction of the upper area corresponds to the total length of the linear cuts in the lower area, It is smaller than the value divided by the length in the longitudinal direction, and it is an absorbent article characterized by the above-mentioned.
  • FIG. 3 is a view showing a cross section AA of FIG. 2;
  • FIG. 4A and FIG. 4B are diagrams for explaining modified examples of the ventral side exterior member 30 and the back side exterior member 40. It is the figure which expanded and represented about the area
  • FIG. 6A is a view for explaining how the slit 50 is deformed when the diaper 1 is worn.
  • FIG. 6B is a view for explaining how the slit 50 is deformed in the comparative example.
  • An absorbent article having a longitudinal direction and a lateral direction perpendicular to each other, wherein the abdominal exterior member covers the wearer's belly from the front, the dorsal exterior member covers the wearer's back from the rear, and the excretion
  • An absorbent body having an absorbent body for absorbing a substance, and one end side being overlapped and joined to a part of the ventral side exterior member, and the other end side being overlapped and joined to a portion of the back side exterior member
  • the ventral side exterior member and the back side exterior member overlap the absorbent main body in the vertical direction, and a lower region not overlapping the absorbent main body in the lateral direction, and the absorbent in the vertical direction
  • An upper region which does not overlap with the main body and does not overlap with the absorbent main body in the lateral direction, and at least one of the ventral side exterior member and the back side exterior member includes: Have a predetermined length in the lateral direction A plurality of linear cuts passing through the one exterior member are provided at predetermined intervals in the
  • the ratio of the openings (cuts) provided in the upper region is smaller than the ratio of the openings provided in the lower region 30.
  • the lower region includes an overlapping region overlapping the absorber in the vertical direction and a non-overlapping region not overlapping the absorber in the vertical direction, in the non-overlapping region
  • a value obtained by dividing the total length of the linear breaks by the length of the non-overlap area in the vertical direction is the total length of the linear breaks in the overlap area as the total length of the overlap areas. It is desirable to be smaller than the value divided by the length in the vertical direction.
  • the ratio of the openings (cuts) provided in the non-overlapping area where the drag by the absorber is unlikely to act on the upward pulling force is the openings (cuts) provided in the overlapping area It becomes smaller than the ratio of).
  • the total length of the plurality of linear cuts arranged in a row in the lateral direction is the linear Preferably, it is smaller than 1/2 of the lateral length of the area in which the cut is arranged.
  • the formation of a large number of horizontally long cuts in a certain row is suppressed, and the strength of the portion of the row is easily ensured by the exterior member. That is, by limiting the ratio of the cut provided on the same straight line so as to align the longitudinal direction, it is possible to more easily suppress the torn of the absorbent article at the time of attachment or detachment of the absorbent article such as a diaper.
  • the interval between the two adjacent linear slits be longer than the lateral length of the linear slit.
  • the abdominal exterior member and the back exterior member are provided with a plurality of elastic members for providing stretchability in the lateral direction at predetermined intervals in the longitudinal direction, It is desirable that the linear cut be disposed between two elastic members longitudinally adjacent to each other.
  • the contraction force along the transverse direction by two longitudinally adjacent elastic members is likely to act on the cut disposed between the elastic members.
  • a tensile force in the vertical direction generated when the absorbent article is worn and an elastic force in the lateral direction by the elastic member act on the cut, and the horizontally long cut has a diamond shape. It becomes easy to be deformed.
  • heat and moisture can easily move through the rhombus cut between the wearer's skin and the outside air, and air permeability can be further improved.
  • a direction in which the elastic member expands and contracts is parallel to a longitudinal direction of the linear cut.
  • the stretching force by the elastic member is likely to act in the longitudinal direction (i.e., the lateral direction) of the cut.
  • a longitudinal tensile force acts on the exterior member when the absorbent article is attached or detached, the longitudinal and lateral forces act on the cut in a well-balanced manner, and the cut has a good diamond shape. It is easy to be deformed and to realize good breathability.
  • the total length of the linear cuts in the upper region be zero.
  • Such an absorbent article wherein the total length of the linear cuts in the upper central region that does not overlap with the absorbent body in the longitudinal direction and overlaps with the absorbent body in the lateral direction is zero Is desirable.
  • Such an absorbent article ensures sufficient strength in the upper central region, which is a portion that is frequently pulled upward to fit the absorbent body to the wearer's body in the operation of wearing the absorbent article. can do. Thereby, good fit and durability of the absorbent article can be realized.
  • a skin side sheet and a non-skin side sheet are laminated and provided on the belly side exterior member and the back side exterior member, and the skin of the non-skin side sheets is the skin. It is desirable that a portion of the side sheet that protrudes from the upper end in the longitudinal direction be folded back to the lower side in the longitudinal direction and be joined to the absorbent main body.
  • the number of sheet members stacked at the upper end in the longitudinal direction of the exterior member is greater than the number of sheet members stacked at the lower end in the longitudinal direction of the exterior member.
  • the strength at the upper longitudinal end of the exterior member can be increased. Since the said edge part is a site
  • a sheet member different from the ventral exterior member and the dorsal exterior member is joined to the skin side of the longitudinal upper end of the ventral exterior member and the dorsal exterior member. It is desirable that it is done.
  • the strength at the upper longitudinal end of the exterior member can be increased. Furthermore, by changing the material and size of the sheet member, it is possible to freely adjust the reinforcement strength of the upper end edge in the longitudinal direction of the exterior member according to the use conditions of the absorbent article, etc. The strength of the area can be efficiently increased.
  • the length in the lateral direction of the linear cut is 2 mm or more and 10 mm or less.
  • the opening area of the slit becomes large when the absorbent article is worn by setting the lateral length of the slit at 2 mm or more, and the function as a vent is sufficiently exhibited.
  • the length in the lateral direction of the cut to 10 mm or less, it is possible to suppress the occurrence of a tear in the cut portion and to suppress the finger of the wearer from being caught in the cut.
  • FIG. 1 is a schematic perspective view of a disposable diaper 1 (diaper 1) as an example of the absorbent article of the present embodiment.
  • FIG. 2 is a schematic plan view of the unfolded diaper 1 as viewed from the skin side.
  • FIG. 3 is a view showing the AA cross section of FIG.
  • the diaper 1 of this embodiment is a so-called three-piece type, and has three parts 10, 30, 40. That is, this diaper 1 has an absorbent main body 10 applied to the crotch of the wearer and absorbs excrement such as urine as the first part, and as the second part, the abdominal side of the same wearer It has the covering abdominal side exterior member 30, and has the back side exterior member 40 which covers the back side of the same wearer as a 3rd part. Moreover, as FIG.2 and FIG.3 shows, the diapar 1 of the unfolded state has a longitudinal direction, the horizontal direction, and the thickness direction as three directions to mutually orthogonally cross.
  • the "front side” of a longitudinal direction is a part which covers a belly side of a wearer at the time of diaper wearing
  • a “back side” is a part which covers a wearer's back side.
  • the side in contact with the wearer's skin in the thickness direction is referred to as the “skin side”
  • the opposite side is referred to as the "non-skin side”.
  • the ventral side exterior member 30 (vertically upper side in the figure) and the dorsal side exterior member 40 (vertically lower side in the figure) are arranged in parallel and spaced apart from each other in the longitudinal direction
  • the respective ends 10ea and 10eb in the longitudinal direction of the absorbent main body 10 are joined and fixed to the nearest exterior members 30 and 40 while the absorbent main body 10 is stretched between them, and the external shape is flat It has an H-shaped view.
  • the absorbent main body 10 is folded in half with the substantially central portion C10 in the longitudinal direction as the folding position.
  • Abdominal exterior member side edge 30se which is a portion where the ventral exterior member 30 and the back exterior member 40, which are opposed to each other in this half-folded state, should abut against the wearer's flank, When they are joined and connected at the edge portion 40se (that is, at each end in the lateral direction), the exterior members 30, 40 are annularly formed. As a result, the diaper 1 in a worn state in which the waist opening 1HB and the pair of leg openings 1HL are formed as shown in FIG. 1 is obtained.
  • the absorbent main body 10 includes an absorbent core 11, a surface sheet member 13 that covers the absorbent core 11 from the skin side of the core 11, and the core 11. And a back sheet member 15 which covers the non-skin side of the body and forms an exterior of the absorbent main body 10.
  • the absorbent core 11 is a member formed by laminating a liquid absorbent material, and is an absorber that absorbs excrement such as urine.
  • liquid absorbent material for example, liquid absorbent fibers such as pulp fibers can be used.
  • the absorbent core 11 may contain, for example, a superabsorbent polymer as a liquid absorbent granular material, or may contain a liquid absorbent material other than a liquid absorbent fiber and a liquid absorbent granular material. Also good.
  • the absorbent core 11 may be coated with a liquid permeable sheet (not shown) such as tissue paper.
  • the absorbent core 11 according to the present embodiment has a narrow portion 11c between the front end and the rear end in the longitudinal direction in FIG. 2 and having a narrower width in the lateral direction than the front end and the rear end. .
  • the absorptive core 11 is comprised so that it may become a plan view substantially sand glass shape as is shown by FIG.
  • the surface sheet member 13 is a sheet-like member that covers the absorbent core 11 from the skin side, and is, for example, a liquid-permeable non-woven fabric having a planar size larger than that of the absorbent core 11.
  • the back sheet member 15 is a sheet-like member that covers the absorbent core 11 from the non-skin side, and is a flat sheet larger than the absorbent core 11, and as an example, it is liquid impermeable such as polyethylene or polypropylene
  • packing sheet 15b, such as a nonwoven fabric, were bonded together is mentioned.
  • the back surface sheet member 15 and the top sheet member 13 are formed at portions protruding outward from four sides of the absorbent core 11. Are laminated in a frame shape, whereby the absorbent main body 10 is formed.
  • the back surface sheet member 15 does not have the exterior
  • so-called three-dimensional gathers or leg gathers may be formed by the exterior sheet 15b or the like (both not shown).
  • the three-dimensional gathers are, for example, leak-proof wall portions provided so as to stand upright at each end of the surface sheet member 13 in the lateral direction, and the leg gathers are formed at the respective leg-openings 1HL and 1HL of the diaper 1. It is about the leg elastic parts.
  • a liquid-permeable sheet such as tissue paper may be interposed as a second sheet between the front sheet member 13 and the absorbent core 11 or between the back sheet member 15 and the absorbent core 11. .
  • Each of the ventral side exterior member 30 and the back side exterior member 40 is a sheet member having a substantially rectangular shape in plan view, for example, using a flexible sheet such as a non-woven fabric as a material.
  • the ventral-side exterior member 30 is formed by joining the skin-side sheet 31 and the non-skin-side sheet 32 in an overlapping manner from the skin side in the thickness direction.
  • the back side exterior member 40 is formed by joining the skin side sheet 41 and the non-skin side sheet 42 in a two-ply manner from the skin side in the thickness direction.
  • the ventral side exterior member 30 and the back side exterior member 40 cover the respective longitudinal end portions 10ea and 10eb of the absorbent main body 10 from the non-skin side of the absorbent main body 10, respectively. It is superimposed and joined to the
  • the length in the vertical direction of the non-skin side sheet 32 is longer than that of the skin side sheet 31, and the lengthwise upper end of the non-skin side sheet 32 is on the skin side
  • the sheet 31 is configured to protrude from the upper end in the longitudinal direction. Then, the protruding portion of the non-skin side sheet 32 is folded back to the lower side in the vertical direction as shown in FIG. 3, and the folded back portion 32f is overlapped and joined to the skin side sheet 31.
  • the number of sheet members stacked at the upper end edge in the longitudinal direction of the ventral exterior member 30 is greater than the number of sheet members stacked at the lower end edge in the longitudinal direction of the ventral exterior member 30.
  • ventral exterior member 30 It is possible to increase the strength of the ventral exterior member 30 at the longitudinal upper end edge. Since the end edge portion is a portion where a large force acts by being gripped with a finger or the like when the diaper 1 is worn, it is possible to suppress the tearing of the abdominal exterior member 30 by thus increasing the strength. It becomes easy to do. The same applies to the non-skin side sheet 42 and the skin side sheet 41 of the back side exterior member 40 (see FIG. 3).
  • FIG. 4A and FIG. 4B are diagrams for explaining modified examples of the ventral side exterior member 30 and the back side exterior member 40.
  • FIGS. 4A and 4B show a cross section in the longitudinal direction of the pants-shaped diaper 1.
  • a portion 32f which is folded back from the upper end in the vertical direction of the skin side sheet 31 is joined so as to cover the absorbent main body 10 from the skin side.
  • the strength of the upper end in the longitudinal direction of the ventral exterior member 30 can be increased.
  • direct contact of the longitudinal upper end of the absorbent body 10 with the skin of the wearer is suppressed, and the feel of the waist area when worn can be improved.
  • the non-skin side sheet 32 (42) and the skin side sheet 31 (41) have the same size.
  • the non-skin side sheet 32 (42) does not protrude from the skin side sheet 31 (41)
  • the folded portion of the non-skin side sheet 32 (42) is not formed, and the abdominal exterior member 30 and the dorsal exterior
  • the strength at the upper longitudinal end of the member 40 may be insufficient.
  • the reinforcement sheet member 70 is provided in the skin side of the vertical direction upper-side edge part of the belly side exterior member 30 and the back side exterior member 40, and the intensity
  • the reinforcing sheet member 70 is a rectangular member different from the ventral side exterior member 30 and the back side exterior member 40, and can be formed of a non-woven fabric or the like. If it is such a reinforcement sheet member 70, since it is possible to change the material and the size, the strength in the longitudinal direction outer end edge of the ventral side exterior member 30 and the back side exterior member 40 is the condition for using the diaper 1 Reinforcement can be performed more efficiently because it can be adjusted freely according to the situation.
  • the folded portion 32f of the non-skin side sheet 32 may be formed, and the reinforcing sheet member 70 may be disposed.
  • the absorbent main body 10 is superimposed on the ventral exterior member 30 by centering the absorbent outer body 30 on the longitudinal outer end 30 e of the ventral exterior member 30 in the longitudinal center rather than the end 30 e. It is performed as the absorbent main body 10 is piled on the side part 30c (refer FIG. 2). Similarly, the absorbent main body 10 is superimposed on the back side exterior member 40 in the longitudinal direction of the back side exterior member 40 without overlapping the absorbent main body 10 on the longitudinal end portion 40e. The absorbent main body 10 is superimposed on the central portion 40c of the In addition, these parts 30e and 40e which do not overlap turn into a part which constitutes waist circumference opening 1HB (Drawing 1) of diaper 1. As shown in FIG. In the portions 30e and 40e, elastic members 35 and 45 to be described later are continuously provided over substantially the entire length in the lateral direction of the portions 30e and 40e, respectively.
  • the length L30e of the end 30e of the ventral side exterior member 30 in the longitudinal direction is smaller than the length L40e of the end 40e of the back side exterior member 40 in the absorption.
  • the main body 10 is disposed (L30e ⁇ L40e). That is, the absorbent main body 10 is disposed more toward the ventral-side exterior member 30 than the back-side exterior member 40 as a whole. In this way, urine can be efficiently absorbed on the ventral side (front side) when the diaper 1 is worn.
  • the absorbent main body 10 is provided closer to the ventral side exterior member 30, the area in which the buttocks upper region is covered by the absorbent main body 10 on the dorsal side of the wearer is reduced.
  • region is an area
  • the magnitude relationship between L30e and L40e is not limited to that described above, and the relationship of L30eLL40e may be established.
  • the upper region 30e 000 is an area indicated by oblique lines on both upper sides in the lateral direction of the ventral-side exterior member 30.
  • a region between the upper regions 30e réelle on both lateral sides, ie, a region that does not overlap the absorbent main body 10 in the vertical direction but overlaps the absorbent main body 10 in the lateral direction is an upper central region Call it 30 ec.
  • "upper” said here is the upper side of the vertical direction in the state which made diaper 1 into a pants type like FIG.1 and FIG.4A, 4B, and it corresponds in the front side of the vertical direction in FIG. .
  • an upper region 40e a region not overlapping with the absorbent main body 10 in the lateral direction.
  • region which does not overlap with the absorptive main body 10 in a vertical direction, and overlaps with the absorptive main body 10 in a horizontal direction is called upper center area
  • the lower region 30c refurbish is a region hatched on both lower sides in the lateral direction of the ventral-side exterior member 30.
  • a region overlapping with the absorbent main body 10 in the vertical direction is referred to as an overlapping region 30c Moderator1
  • a region not overlapping with the absorbent main body 10 in the vertical direction is referred to as a non-overlapping region 30c Mau2.
  • the lower side said here is the lower side of the vertical direction in the state which made diaper 1 into a pants type like FIG.1 and FIG.4A, 4B, and in FIG. Equivalent to.
  • a region not overlapping the absorbent main body 10 in the lateral direction is referred to as a lower region 40c
  • a region overlapping with the absorbent main body 10 in the vertical direction is referred to as an overlapping region 40c
  • a region not overlapping with the absorbent main body 10 in the vertical direction is referred to as a non-overlapping region 40c Corporation2.
  • slits 50 which are linear cuts penetrating the exterior members 30 and 40 while having a predetermined length in the horizontal direction are A plurality is provided at predetermined intervals in the lateral direction. The details of the slits 50 will be described later.
  • a state in which a plurality of elastic members 35, 35, such as thread rubber, etc. are interposed along the lateral direction between the two sheets 31, 32 pertaining to the ventral side exterior member 30, and are stretched in the lateral direction Are fixed to the same sheet 31, 32. Further, the plurality of elastic members 35, 35,... Are provided in line in the longitudinal direction with intervals in the longitudinal direction. Similarly, between the two sheets 41 and 42 related to the back side exterior member 40, a plurality of elastic members 45 and 45 such as thread rubber are interposed along the lateral direction, and are stretched in the lateral direction. It is joined and fixed to the same sheet 41 and 42 in the state which was carried out. The plurality of elastic members 45 are arranged in the longitudinal direction with intervals in the longitudinal direction.
  • the basic configurations of the elastic members 35 and 45 are substantially the same as each other except for detailed specifications such as the thickness, the number, and the arrangement position in the vertical direction.
  • the elastic members 35 and 45 are partially discontinuous in a region overlapping the absorbent core 11 in the vicinity of the central portion in the lateral direction, and no stretchability acts on the regions. Thereby, the contraction in the lateral direction (width direction) of the absorbent core 11 is suppressed, so that the generation of wrinkles and the like in the absorbent core 11 is suppressed, and the skin side surface of the absorbent core 11 is easily maintained substantially flat. . As a result, liquid absorption inhibition of the absorbent core 11 can be effectively prevented, and leakage of excrement and the like caused by the occurrence of hemorrhoids can also be suppressed.
  • FIG. 5 is an enlarged view of the region B of FIG.
  • the back side exterior member 40 is also provided with a plurality of slits 50, but the basic configuration and function thereof are substantially the same as the ventral side exterior member 30, so The ventral-side exterior member 30 will be described, and the description of the back-side exterior member 40 will be omitted.
  • the arrangement and the number of slits 50 may be different between the ventral side exterior member 30 and the back side exterior member 40.
  • the slit 50 may be provided only in one of the abdominal exterior member 30 and the back exterior member 40, and the other may not be provided with the slit.
  • the slits 50 are cuts that pass through the abdominal exterior member 30 in the thickness direction, and a plurality of slits 50 are formed in a row at predetermined intervals along the lateral direction of the diaper 1.
  • the slits 50 may be cut away so as to have a predetermined width in the longitudinal direction, but in consideration of the strength of the ventral exterior member 30, linear slits are preferable.
  • the slit 50 will be described as being a “linear” cut having a predetermined length in the lateral direction.
  • the slits 50 formed in the ventral exterior member 30 have a region on the outer side in the longitudinal direction (a region on the upper side of the ventral exterior member 30 in FIG. 5) and a region on the central side in the longitudinal direction (FIG. 5) The arrangement and the shape are different in the lower region of the ventral side exterior member 30).
  • the first slit 51 and the second slit 52 are formed in the lower region 30c Cincinnati, and the second slit 52 is formed in the upper region 30e Budapest.
  • the first slit 51 has, for example, a length of 3 mm in the lateral direction (hereinafter also referred to as “slit length”), and a distance of 8 mm between the first slits 51 adjacent in the lateral direction (hereinafter referred to as “slit pitch”). And four in a row in the lateral direction.
  • the second slits 52 have, for example, a length (slit length) of 2 mm in the lateral direction and an interval (slit pitch) of the second slits 52 adjacent to each other in the lateral direction of 8 mm. It is formed.
  • the slit length and interval of each slit 50 are not limited to this, and the slit lengths and intervals may be different between adjacent slits.
  • the slit length of the slit 50 is desirably 2 mm or more.
  • the slit length is shorter than 2 mm, the opening area of the slit 50 becomes small when the diaper 1 is worn, and there is a possibility that the function as a vent can not be sufficiently exhibited.
  • the slit length of the slit 50 be 10 mm or less.
  • the slit length is longer than 10 mm, a tear is easily generated at the longitudinal direction end portion of the slit 50 or the like by the force by which the abdominal exterior member 30 is pulled when attaching and detaching the diaper 1, and the strength of the abdominal exterior member 30 is sufficient. May not be secured.
  • the slit length is long, the wearer's finger is likely to be caught by the slit 50, and there is a possibility that the slit 50 may be torn by the force of the finger.
  • the slit pitch of the slits 50 be longer than the slit length of the slits 50.
  • the adjacent slits 50 are likely to be connected to each other by a force pulling the belly side exterior member 30 at the time of attaching and removing the diaper 1, and the belly side exterior member 30 may be torn in the lateral direction.
  • the slit pitch is equal to or less than the slit length, it is easy to prevent the adjacent slits 50 from being connected.
  • the diaper 1 of the present embodiment by adjusting the shape and the arrangement of the slits 50 for each region of the belly-side exterior member 30, good venting of the belly-side exterior member 30 is ensured, Sufficient strength can also be maintained.
  • four first slits 51 in the horizontal direction and six rows in the vertical direction are formed in the lower region 30c Brighton of the abdominal exterior member 30, and five second slits 52 in the horizontal direction are formed in the vertical direction. Three rows are formed.
  • the upper region 30e® five second slits 52 are formed in the horizontal direction and four rows in the vertical direction.
  • the value obtained by dividing the total length of the slits 50 (cuts) in the upper area 30eschreib by the longitudinal length L30e of the upper area 30eschreib is the total length of the slits 50 (cuts) in the lower area 30c nowadays as the lower area. It is smaller than the value divided by the vertical length L30c of 30 co.
  • the total value of the slit lengths in the lower region 30c technically the relationship of (40 mm / L 30 e) ⁇ (102 mm / L 30 c) is established.
  • the rate of the slits 50 formed in the region is increased to make the air permeability higher. That is, in the diaper 1, in the upper region 30e Eisen, the number of cuts is reduced to give priority to securing the strength, and in the lower region 30cously, the number of cuts is increased and priority is given to good air permeability.
  • the ratio of the slits 50 is also adjusted in the overlapping region 30c refurbish1 below the vertical direction and the non-overlapping region 30c refurbish2 above the vertical direction in the lower region 30cschreib. That is, a value obtained by dividing the total length of the slits 50 (cuts) in the non-overlap area 30c réelle 2 by the length L30c 2 in the vertical direction of the non-overlap areas 30c réelle 2 is the total length of the slits 50 (cuts) in the overlap area 30cschreib 1 The value is smaller than the value obtained by dividing the overlapping region 30c refurbish1 by the vertical length L30c1. For example, in the case of the example of FIG.
  • the ratio in which the cut (slit 50) is formed is lower than in the overlapping area 30c Mau1. Since the non-overlapping region 30c Corporation2 of the lower region 30cschreib is closer to the upper region 30e866 than the overlapping region 30c Mau1, when the diaper 1 is worn, the upper region 30e866 is pulled upward, and the non-overlapping region 30c Corporation2 is also pulled upward It is easy to be Further, the overlapping region 30c journals1 overlaps the absorbent core 11 in the vertical direction, whereas the non-overlapping region 30c negotiate2 does not overlap the absorbent core 11 in the vertical direction.
  • the drag force by the absorbent core 11 acts on the pulling force in the upward direction, whereas in the non-overlapping region 30c refurbish2, the efficacy by the absorbent core 11 hardly acts on the pulling force. Therefore, in the non-overlapping region 30c refurbish2, the ratio of the slits 50 formed in the region is reduced to give priority to securing the strength. On the other hand, in the overlapping area 30c refurbish1, the rate of the slits 50 formed in the area is increased to make the air permeability higher.
  • the ratio of the slits 50 provided for each row in the lateral direction is also necessary to consider the ratio of the slits 50 provided for each row in the lateral direction. That is, not only the ratio of the slits 50 provided in a certain region (for example, a region having a predetermined area such as the lower region 30c) but also a plurality of slits 50 provided on the same straight line in a certain row You should also consider the proportion of This is because if the horizontally long slits 50 are formed extremely in a certain row, the strength of the ventral exterior member 30 becomes weak in that row, and the ventral exterior member 30 may be torn.
  • the total length of the slit lengths of the slits 50 provided in a row in the lateral direction of the upper region 30e866 or the lower region 30c Brighton of the abdominal exterior member 30 is the slit 50. It is designed to be smaller than half of the lateral length of the region.
  • the effective length in the lateral direction of the upper region 30e866 (the lateral length excluding the side edge 30se serving as the connecting portion) in FIG. 5 is 59 mm
  • the total length of the slits (cuts) aligned in the longitudinal direction on the same line is smaller than half the length of the material (here, the ventral exterior member 30). The strength of the material is secured, and it becomes easier to suppress that the diaper 1 is torn during attachment and detachment.
  • FIG. 6A is a view for explaining how the slit 50 is deformed when the diaper 1 is worn.
  • FIG. 6B is a view for explaining how the slit 50 is deformed in the comparative example.
  • a force in the vertical direction acts on the slits 50 provided in the ventral exterior member 30 by an operation of pulling up the ventral exterior member 30 (the dorsal exterior member 40). Then, the shape of the slit 50 is changed by receiving such a force (pulling force).
  • a force Fv directed upward and downward in the longitudinal direction acts on the slit 50.
  • the slit 50 has lateral right and left due to the contraction force of the elastic member 35 (elastic member 45) provided on the ventral exterior member 30 (the back exterior member 40).
  • Force Fh acts.
  • the slit 50 is expanded in the longitudinal direction by the force Fv, and is also expanded in the lateral direction by the force Fh, and is deformed into a substantially rhombus shape as shown in FIG. 6A.
  • the deformation of the slit 50 from a linear shape to a diamond shape facilitates heat and moisture to move through the slit 50 between the wearer's skin and the outside air, thereby making the air permeability more favorable.
  • FIG. 6B shows the case where the contraction force in the lateral direction by the elastic member 35 does not sufficiently act on the ventral side exterior member 30 as a comparative example.
  • the comparative example only the upward and downward force Fv in the vertical direction acts on the slit 50, so the slit 50 is easily deformed into a vertically long shape as shown in FIG. 6B.
  • the vertically long shape as shown in FIG. 6B it is difficult to secure good air permeability as compared with the diamond shape of FIG. 6A.
  • the slit 50 which is originally a horizontally long shape, is greatly deformed to be vertically long, excessive stress is generated in the region in which the slit 50 is formed, and the abdominal exterior member 30 may be easily torn.
  • air permeability can be further improved by effectively causing the contraction force of the elastic members 35 and 45 to act on the slit 50.
  • a plurality of elastic members 35 provided so as to be extensible in the lateral direction are provided at predetermined intervals in the longitudinal direction, and the horizontally long slits 50 are provided between the elastic members 35 adjacent in the longitudinal direction. It is arranged. That is, the slit 50 is configured to be sandwiched by the elastic members 35 in the longitudinal direction. As a result, the contraction force by the two elastic members 35 vertically adjacent to each other easily acts on the slit 50 disposed therebetween, and the deformation of the diamond shape of the slit 50 is promoted.
  • each is disposed such that the longitudinal direction of the slit 50 and the expansion and contraction direction of the elastic members 35 and 45 are parallel to each other.
  • the tension direction which acts at the time of diaper 1 wear and the expansion-contraction direction of the elastic members 35 and 45 will come to intersect.
  • longitudinal and lateral forces act on the slit 50 in a well-balanced manner, and the slit 50 can be deformed into a favorable diamond shape as shown in FIG. 6A.
  • no cut (slit 50) is formed in the upper central regions 30 ec and 40 ec of the ventral exterior member 30 (the back exterior member 40).
  • the total length of the cuts (slits 50) in the upper central regions 30ec and 40ec is zero.
  • the upper central regions 30ec and 40ec are regions in which the heat of the abdomen and back is likely to be accumulated when the diaper 1 is worn, it is desirable to arrange slits to enhance the air permeability.
  • the region is also a portion that is frequently pulled upward to fit the absorbent main body 10 to the wearer's body (for example, crotch), the diaper 1 is required to have sufficient strength. There is a risk of tearing. Therefore, in the present embodiment, securing the strength is prioritized by not providing the slits 50 in the upper central regions 30ec and 40ec. Thereby, when wearing the diaper 1, a good fit and durability are realized.
  • the slits 50 provided in the upper central regions 30ec and 40ec do not necessarily have to be zero, and a small number of short slits may be disposed. At that time, it is also possible to secure the strength by providing the reinforcing sheet member 70 as described above on the longitudinally outer end edges of the ventral side exterior member 30 and the back side exterior member 40.
  • FIG. 7 is a schematic plan view of the unfolded state of the diaper 1 in the case where the slits 50 are not provided in the upper regions 30e 000 and 40e 000.
  • the slits 50 are not provided in the upper regions 30e 000 and 40e866, and the slits 50 are provided only in the lower regions 30c Cincinnati and 40c technically (in the example of FIG. A slit 51 is provided).
  • exterior sheet 15b and belly side exterior member 30 and back side exterior member 40 was made into nonwoven fabric, respectively, it is not restricted to nonwoven fabric at all.
  • it may be a woven fabric or a sheet member other than the woven fabric.
  • the exterior sheet 15b may be omitted, in which case the leak-barrier sheet 15a forms the exterior of the absorbent main body 10.
  • thread rubber was illustrated as elastic member 35 and 45 in the above-mentioned embodiment, it does not restrict to this at all.
  • a belt-like rubber may be used as the elastic members 35 and 45, or a stretchable band-like non-woven fabric or a stretchable band-like resin film may be used.
  • 3 piece type diaper 1 constituted by three parts as an example of an absorptive article
  • the disposable diaper etc. consist of two parts, the integral type exterior member in which belly side exterior member 30 and back side exterior member 40 were constituted in one, and absorptive main part 10.
  • the absorbent main body 10 overlaps in the longitudinal direction and the non-overlapping lower regions 30c refurbish and 40c Avenue in the longitudinal direction and the absorbent main body 10 does not overlap in the longitudinal direction for each of the ventral side and the back side of the integral exterior member.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (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)
  • Dermatology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne un article absorbant ayant une direction verticale et une direction horizontale qui sont perpendiculaires l'une à l'autre, comprenant un élément externe côté ventral, un élément externe côté dorsal, et un corps absorbant pour absorber des déchets corporels, et ayant également un corps principal absorbant ayant une extrémité de ce dernier reliée à une section de l'élément externe côté ventral et l'autre extrémité de ce dernier reliée à une section de l'élément externe côté dorsal d'une manière chevauchante, dans lequel : l'élément externe côté ventral et l'élément externe côté dorsal ont chacun une région inférieure qui chevauche le corps principal absorbant dans la direction verticale et ne chevauche pas le corps principal absorbant dans la direction horizontale, et une région supérieure qui ne chevauche pas le corps principal absorbant dans la direction verticale ou horizontale ; des fentes linéaires s'étendant sur une longueur prescrite dans la direction horizontale et passant à travers l'un des éléments extérieurs sont disposées à des intervalles prescrits dans les directions verticale et horizontale dans l'élément externe côté ventral et/ou l'élément externe côté dorsal ; et une valeur obtenue en divisant la longueur totale des fentes linéaires dans la région supérieure par la longueur de la région supérieure dans la direction verticale est inférieure à une valeur obtenue en divisant la longueur totale des fentes linéaires dans la région inférieure par la longueur de la région inférieure dans la direction verticale.
PCT/JP2015/068879 2015-06-30 2015-06-30 Article absorbant WO2017002206A1 (fr)

Priority Applications (3)

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PCT/JP2015/068879 WO2017002206A1 (fr) 2015-06-30 2015-06-30 Article absorbant
JP2016513932A JP6026053B1 (ja) 2015-06-30 2015-06-30 吸収性物品
CN201580081031.7A CN107683127B (zh) 2015-06-30 2015-06-30 吸收性物品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/068879 WO2017002206A1 (fr) 2015-06-30 2015-06-30 Article absorbant

Publications (1)

Publication Number Publication Date
WO2017002206A1 true WO2017002206A1 (fr) 2017-01-05

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JP (1) JP6026053B1 (fr)
CN (1) CN107683127B (fr)
WO (1) WO2017002206A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2019073568A1 (fr) * 2017-10-12 2019-04-18 ユニ・チャーム株式会社 Article absorbant

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Publication number Priority date Publication date Assignee Title
JP2002369842A (ja) * 1996-02-22 2002-12-24 Procter & Gamble Co:The 一体型使い捨て引っ張って身に着けるタイプの衣類
JP2009160129A (ja) * 2007-12-28 2009-07-23 Daio Paper Corp パンツ型使い捨ておむつ
JP2014221122A (ja) * 2013-05-13 2014-11-27 花王株式会社 パンツ型着用物品およびその製造方法
JP2015089447A (ja) * 2013-11-06 2015-05-11 花王株式会社 パンツ型着用物品

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Publication number Priority date Publication date Assignee Title
WO2009084643A1 (fr) * 2007-12-28 2009-07-09 Daio Paper Corporation Couche jetable de type culotte

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002369842A (ja) * 1996-02-22 2002-12-24 Procter & Gamble Co:The 一体型使い捨て引っ張って身に着けるタイプの衣類
JP2009160129A (ja) * 2007-12-28 2009-07-23 Daio Paper Corp パンツ型使い捨ておむつ
JP2014221122A (ja) * 2013-05-13 2014-11-27 花王株式会社 パンツ型着用物品およびその製造方法
JP2015089447A (ja) * 2013-11-06 2015-05-11 花王株式会社 パンツ型着用物品

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019073568A1 (fr) * 2017-10-12 2019-04-18 ユニ・チャーム株式会社 Article absorbant
CN109982671A (zh) * 2017-10-12 2019-07-05 尤妮佳股份有限公司 吸收性物品
KR20200070249A (ko) * 2017-10-12 2020-06-17 유니챰 가부시키가이샤 흡수성 물품
JPWO2019073568A1 (ja) * 2017-10-12 2020-10-01 ユニ・チャーム株式会社 吸収性物品
TWI742296B (zh) * 2017-10-12 2021-10-11 日商優你 嬌美股份有限公司 吸收性物品
EA039475B1 (ru) * 2017-10-12 2022-01-31 Юничарм Корпорейшн Впитывающее изделие
KR102522820B1 (ko) 2017-10-12 2023-04-17 유니챰 가부시키가이샤 흡수성 물품

Also Published As

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JPWO2017002206A1 (ja) 2017-06-29
JP6026053B1 (ja) 2016-11-16
CN107683127B (zh) 2018-11-16
CN107683127A (zh) 2018-02-09

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