WO2017002211A1 - Article absorbant comportant des fentes inclinées vers une direction d'élastique de taille - Google Patents

Article absorbant comportant des fentes inclinées vers une direction d'élastique de taille Download PDF

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Publication number
WO2017002211A1
WO2017002211A1 PCT/JP2015/068897 JP2015068897W WO2017002211A1 WO 2017002211 A1 WO2017002211 A1 WO 2017002211A1 JP 2015068897 W JP2015068897 W JP 2015068897W WO 2017002211 A1 WO2017002211 A1 WO 2017002211A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
cut
thread
rubber
distance
Prior art date
Application number
PCT/JP2015/068897
Other languages
English (en)
Japanese (ja)
Inventor
瀧野　俊介
邦彦 桂川
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/JP2015/068897 priority Critical patent/WO2017002211A1/fr
Priority to JP2016513921A priority patent/JP6001810B1/ja
Priority to TW105119191A priority patent/TWI597056B/zh
Publication of WO2017002211A1 publication Critical patent/WO2017002211A1/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
    • 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
    • A61F13/45—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
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • 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.
  • Absorbent articles such as disposable diapers are usually manufactured as a combination of an outer layer body and an absorbent main body.
  • the outer layer body is generally formed by laminating an inner exterior member and an outer exterior member.
  • the user has been required to have a feeling of use that is not different from that of underwear. Under such circumstances, attempts have been made to improve the shape and structure of members of the outer layer body.
  • the rash caused by wearing the absorbent article is caused by the skin swell in the absorbent article in a hot and humid state, and also caused by reaction with excrement, friction caused by the cloth or paper of the absorbent article itself, and Some come from bacteria.
  • the preventive method is to keep the skin dry, do not irritate the skin, and keep it clean.
  • an absorbent article in which a slit is provided on the surface of the absorbent article and air is secured by the slit to reduce the humidity and temperature inside the absorbent article.
  • Patent Document 1 teaches a pant-type diaper 10 in which a slit portion 38 is formed.
  • the pants-type diaper 10 is formed using an exterior body 11.
  • the exterior body 11 is configured by laminating and bonding an outer layer material 33 (first sheet material) on the non-skin contact surface side and an inner layer material 31 (second sheet material) on the skin contact surface side.
  • a plurality of horizontally long slit portions 38 are partially formed in the outer layer material 33 along the width direction (X direction) of the pants-type diaper 10.
  • a plurality of slit portions 38 are arranged in the body height direction (Y direction) to form a slit region 71.
  • the slit portion 38 is formed as a portion obtained by finely cutting the first sheet material forming the outer layer material 33.
  • the slit portion 38 is formed on the exterior member 33 at a position where the distances from the two elastic bodies 35 adjacent in the Y direction are equal.
  • the slit portion 38 is located in the middle of the elastic member 35 adjacent in the vertical direction. Therefore, when the tension
  • the present invention is directed to using an outer layer body in which the distance between the elastic member adjacent on the upper side and the slit is different from the distance between the elastic member adjacent on the lower side and the slit. This is an absorbent article.
  • the main invention for achieving the above object is: An absorbent article having a longitudinal direction, a transverse direction and a thickness direction orthogonal to each other, A ventral exterior member disposed along the lateral direction; A backside exterior member disposed along the lateral direction, Each of the ventral exterior member and the back exterior member includes a non-skin side non-skin side sheet and a skin side skin side sheet, For at least one of the ventral exterior member and the back exterior member, the non-skin side sheet or the skin side sheet is provided with a plurality of cuts having a predetermined length in the lateral direction.
  • the plurality of cuts are provided at intervals in the horizontal direction and the vertical direction, Between the non-skin side sheet and the skin side sheet, a plurality of rubber threads along the lateral direction are provided, Between one of the thread rubbers adjacent to the longitudinal direction of the plurality of thread rubbers and the other thread rubber, a certain slit of the plurality of slits is provided,
  • the absorbent article is characterized in that a distance between the one rubber thread and the certain cut is different from a distance between the other rubber thread and the certain cut.
  • the slit is surely opened.
  • FIG. 1 is a perspective view of an absorbent article 100 according to the present invention, such as a three-piece type disposable diaper.
  • FIG. It is the schematic plan view which looked at the absorptive article 100 of the deployment state from the skin side.
  • 3A is a cross-sectional view taken along line AA and CC in FIG. 3B is a cross-sectional view taken along the line BB in FIG.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 2. It is a figure which shows the other example of the method of forming the cut
  • FIG. 1 It is a figure which shows the further another example of the method of forming the cut
  • FIG. It is a figure which shows another example of how to form the cut
  • FIG. It is a figure which shows another example of how to form the cut
  • FIG. It is a figure which shows another example of how to form the cut
  • FIG. 13A and 13B are diagrams schematically illustrating a relationship between the relative position of the cut between the elastic members adjacent in the vertical direction and the direction of the opening of the cut.
  • FIG. 14A and 14B are diagrams illustrating a state in which the opening direction (upper or lower) and the size of the opening differ depending on the distance between the cut 150 and the two elastic members 140 adjacent in the vertical direction. It is a figure which shows the case where the approaching direction with respect to the elastic member 140 of the cut 150 is different about different places in the same region. It is a figure which shows the case where the approaching direction with respect to the elastic member 140 of the cut
  • An absorbent article having a longitudinal direction, a transverse direction and a thickness direction perpendicular to each other, A ventral exterior member disposed along the lateral direction; A backside exterior member disposed along the lateral direction, Each of the ventral exterior member and the back exterior member includes a non-skin side non-skin side sheet and a skin side skin side sheet, For at least one of the ventral exterior member and the back exterior member, the non-skin side sheet or the skin side sheet is provided with a plurality of cuts having a predetermined length in the lateral direction.
  • the plurality of cuts are provided at intervals in the horizontal direction and the vertical direction, Between the non-skin side sheet and the skin side sheet, a plurality of rubber threads along the lateral direction are provided, Between one of the thread rubbers adjacent to the longitudinal direction of the plurality of thread rubbers and the other thread rubber, a certain slit of the plurality of slits is provided,
  • the absorbent article is characterized in that a distance between the one rubber thread and the certain cut is different from a distance between the other rubber thread and the certain cut.
  • the one rubber thread is positioned above the other rubber thread in the longitudinal direction, It is desirable that a distance between the other rubber thread and the certain cut is longer than a distance between the one rubber thread and the certain cut.
  • the one rubber thread is positioned above the other rubber thread in the longitudinal direction, It is desirable that a distance between the one rubber thread and the certain cut is longer than a distance between the other rubber thread and the certain cut.
  • the cut line is positioned closer to the thread rubber close to the leg opening in the longitudinal direction than the thread rubber close to the waist opening, so that it is cut when subjected to the tension of the thread rubber. As a result, a downward opening is formed. Therefore, when a helper puts his hand through the leg opening of the absorbent article and puts the wearer on the wearer, the wearer or the helper can surely recognize the presence of the cut.
  • Such an absorbent article The one rubber thread is positioned above the other rubber thread in the longitudinal direction,
  • the distance between the other thread rubber and the certain cut in a part including a place arbitrarily different in the longitudinal direction and the lateral direction of the absorbent article is set as the distance between the one rubber thread and the certain cut.
  • the value divided by the distance between The distance between the other thread rubber and the certain cut in the other part including the place arbitrarily different in the longitudinal direction and the lateral direction of the absorbent article is the distance between the one thread rubber and the one. It is desirable to be different from the value divided by the distance between cuts.
  • the distance between the other rubber thread and the certain cut is larger than the distance between the one rubber thread and the certain cut
  • it is desirable that a distance between the one rubber thread and the certain cut is larger than a distance between the other rubber thread and the certain cut.
  • the cut is close to the upper rubber thread, and in other parts, the cut is close to the lower rubber thread. Accordingly, the direction of the opening can be made different depending on the part, such that an upward opening is formed in a certain part and a downward opening is formed in another part.
  • Such an absorbent article In the lateral direction, the position of the certain part of the absorbent article is preferably different from the position of the other part of the absorbent article.
  • the approach to the thread rubber differs at different positions, and the direction of the opening of the cut and the size of the opening of the cut depend on the position in the lateral direction. Both can be different.
  • the one rubber thread is positioned above the other rubber thread in the longitudinal direction, In the ventral exterior member, the average value of the values obtained by dividing the distance between the other rubber thread and the certain cut by the distance between the one rubber thread and the certain cut, In the backside exterior member, it is preferable that the distance between the other rubber thread and the certain cut is different from an average value obtained by dividing the distance between the one rubber thread and the certain cut. .
  • the direction of the opening due to the cut of each member and the size of the opening of the cut are made different.
  • ventilation can be adjusted according to the ease of sweating of the body part corresponding to each member of the wearer.
  • the average value is preferably closer to 1 in the ventral exterior member than in the back exterior member.
  • the opening of the cut on the back side where the wearer can easily sweat can be enlarged.
  • Such an absorbent article The absolute value of the difference between the distance between the one rubber thread and the certain cut, and the distance between the other rubber thread and the certain cut, Greater than the absolute value of the difference between the distance between the other thread rubber and the other cut and the distance between the other thread rubber and the other cut; It is desirable that the tension of the one thread rubber and the other thread rubber is larger than the tension of the other thread rubber and the other thread rubber.
  • the length of each of the plurality of linear cuts is preferably 5 mm to 15 mm.
  • a wearer can recognize by setting the width of a cut
  • Such an absorbent article In at least one member of the ventral exterior member and the back exterior member, an end portion of the non-skin side sheet is folded back to the skin side sheet side and joined to the skin side sheet on the skin side. Is desirable.
  • the periphery of the waistline opening is a part that is easy to break when the wearer pulls up the absorbent article, but by increasing the number of layers of the part, Strength can be increased.
  • Such an absorbent article In at least one member of the abdominal exterior member and the back exterior member, it is desirable that a reinforcing sheet is provided on the skin side of the longitudinal end portion of the skin side sheet.
  • FIG. 1 is a perspective view of an absorbent article 100 according to the present invention, such as a three-piece type disposable diaper.
  • FIG. 2 is a schematic plan view of the absorbent article 100 in an unfolded state as viewed from the skin side.
  • the absorbent article 100 has a vertical direction, a horizontal direction, and a thickness direction that are orthogonal to each other.
  • the absorbent article 100 includes an absorbent main body 102 that covers the crotch of the wearer and absorbs fluid such as excrement, an abdominal exterior member 104 that covers the abdomen of the wearer, and a back that covers the back of the wearer. Side exterior member 106.
  • the absorbent main body 102 is disposed such that its longitudinal direction is along the longitudinal direction
  • the abdominal exterior member 104 is disposed such that its longitudinal direction is along the lateral direction, and one end in the longitudinal direction of the absorbent main body 102 is disposed. It is overlapped and fixed to the part from the non-skin side in the thickness direction.
  • the back side exterior member 106 is disposed as a separate member having a larger area than the abdominal side exterior member 104 so that its longitudinal direction is along the lateral direction, and is thick at the other end in the longitudinal direction of the absorbent main body 102. It is overlapped and fixed from the non-skin side in the vertical direction.
  • the abdominal exterior member 104 and the back exterior member 106 are arranged in parallel with a space between each other, and the absorbent main body therebetween.
  • the end portions 102ea and 102eb in the longitudinal direction of the absorbent main body 102 are joined and fixed to the nearest ventral-side exterior member 104 and back-side exterior member 106, respectively, and the external shape is abbreviated in plan view. It has an H shape.
  • the absorbent main body 102 is folded in half with the substantially central portion 102ax in the longitudinal direction as the folding position, and the abdominal exterior member 104 and the back exterior member 106 that face each other in this folded state
  • the abdominal exterior member 104 and the back exterior member 106 are connected in a ring shape.
  • connection structures can be adopted as the connection structure between the ventral exterior member 104 and the back exterior member 106.
  • a non-removable connection structure such as welding
  • a pants-type absorbent article 100 can be obtained
  • a detachable connection structure such as a fastening tape member (not shown)
  • an open-type absorbent article 100 is provided.
  • the former connection structure is used, and thereby the absorbent article 100 is a pants-type.
  • the absorbent main body 102 includes an absorbent core 108 obtained by molding liquid absorbent fibers such as pulp fibers into a predetermined shape such as a substantially hourglass shape in plan view, and the absorbent core 108.
  • a top sheet member 110 that covers the skin from the skin side
  • a back sheet member 112 that covers the absorbent core 108 from the non-skin side and forms the exterior of the absorbent main body 102.
  • the absorbent core 108 may contain liquid absorbent granules such as a superabsorbent polymer, or may contain liquid absorbent materials other than liquid absorbent fibers and liquid absorbent granules.
  • the absorbent core 108 may be covered with a liquid permeable sheet such as tissue paper (not shown).
  • the surface sheet member 110 is a liquid-permeable nonwoven fabric having a larger planar size than the absorbent core 108.
  • the back sheet member 112 is also a sheet having a larger plane size than the absorbent core 108.
  • a two-layer in which a liquid-impermeable leak-proof sheet 112a such as polyethylene or polypropylene and an exterior sheet 112b such as a nonwoven fabric are bonded together.
  • the sheet member 112 having a structure can be used. In a state where the absorbent core 108 is sandwiched between the back sheet member 112 and the top sheet member 110, the leakproof sheet 112a and the top sheet of the back sheet member 112 are portions that protrude outward from the four sides of the absorbent core 108.
  • the member 110 is bonded in a frame shape, and thereby the absorbent main body 102 is formed.
  • the three-dimensional gather LCG and the leg gathers LG may be formed by the exterior sheet 112b.
  • the three-dimensional gather LCG refers to leakage prevention wall portions LCG that are provided upright at the respective lateral end portions of the top sheet member 110, and the leg-hole gathers LG are formed in the leg-hole openings AP tc of the absorbent article 100.
  • the elastic part LG formed is pointed out.
  • the dimension of the exterior sheet 112b in the horizontal direction is sufficiently larger than that of the leak-proof sheet 112a, that is, the exterior sheet 112b protrudes from the both sides of the leak-proof sheet 112a in the lateral direction.
  • the protruding portion 112bf is folded back to the center in the lateral direction with the position forming the lateral end portion 102es of the absorbent main body 102 as the folded position, and thread rubber or the like is formed along the longitudinal direction in the vicinity of the folded position.
  • the elastic member 114 is fixed in an extended state in the vertical direction, and a leg-hole gather LG is formed.
  • the folded portion 112bg further extends toward the center in the lateral direction, and is joined to the lateral end at a position covering the lateral end of the topsheet member 110.
  • the lateral end bonded portion of the functions as a base end portion LCG b of standing gathers LCG, surface sheet member further lateral distal end portion than the proximal end portion LCG b as a free end portion LCG f 110 can stand up.
  • An elastic member 116 such as a rubber thread is fixed in the longitudinal direction in the longitudinal direction at the distal end of the free end portion LCG f . Therefore, the elastic main body 102 is bent in the vertical direction so that the topsheet member 110 side is the inner peripheral side by the vertical contraction of the elastic member 116.
  • the end portion LCG f contracts in the vertical direction and rises from the surface sheet member 110, whereby the free end portion LCG f functions as a three-dimensional gather LCG.
  • a liquid permeable sheet such as tissue paper may be interposed as a second sheet between the top sheet member 110 and the absorbent core 108 or between the back sheet member 112 and the absorbent core 108.
  • Both the ventral exterior member 104 and the back exterior member 106 can be formed using a sheet member having a substantially rectangular shape in a plan view made of a flexible sheet such as a nonwoven fabric.
  • the non-skin-side non-skin side sheet 118 and the non-skin-side sheet 120 are joined together to form the abdominal-side exterior member 104 and the back-side exterior member 106.
  • the non-skin side sheet 118 and the skin side sheet 120 do not have to be the same size as each other.
  • the non-skin side sheet 118 and the skin side sheet 120 may be configured as shown in FIG. .
  • the sizes in the vertical direction may be different from each other so that the non-skin side sheet 118 positioned on the non-skin side in the thickness direction protrudes from the skin side sheet 120 to the end side in the vertical direction.
  • a portion 118 f that protrudes from the skin side sheet 120 in the vertical direction is a position in the vicinity of the vertical edge of the skin side sheet 120. Is folded back to the center in the vertical direction.
  • the folded portion 118g is overlapped and joined to the skin side sheet 120.
  • a part of the longitudinal ends 102ea and 102eb of the absorbent main body 102 may be covered from the skin side of the absorbent main body 102 with the folded portion 118g.
  • the abdominal exterior member 104 and the back exterior member 106 have inner overlapping regions 132be and 132re that overlap with the absorbent main body 102 in the longitudinal direction and the lateral direction, respectively.
  • the absorbent main body 102 And upper inner regions 138be and 138re that do not overlap in the vertical direction but overlap in the horizontal direction.
  • the abdominal exterior member 104 and the back exterior member 106 are inner overlapping regions 132be and 132re, respectively, while covering the longitudinal ends 102ea and 102eb of the absorbent main body 102 from the non-skin side of the absorbent main body 102, respectively.
  • Inner overlapping regions 132be and 132re of the abdominal exterior member 104 and the back exterior member 106 are overlapped and joined to the respective end portions 102ea and 102eb.
  • the superposition of the absorbent main body 102 on the inner overlapping regions 132be and 132re of the abdominal exterior member 104 and the back exterior member 106 is performed without overlapping the absorbent main body 102 on the inner upper regions 138be and 138re.
  • the inner upper regions 138be and 138re in the abdominal exterior member 104 and the back exterior member 106 become strip-shaped portions that do not overlap with the absorbent main body 102 in the longitudinal direction over the entire length in the lateral direction.
  • These inner upper regions 138be and 138re become a part constituting the waistline opening AP wc of the absorbent article 100.
  • the elastic member 140 is arranged in the lateral direction in the inner upper regions 138be and 138re. Are provided continuously over substantially the entire length.
  • the back side exterior member 106 is made larger than the ventral side exterior member 104 (L re > L be ), and as a whole, the absorbent main body 102 is disposed more biased toward the ventral-side exterior member 104 than the back-side exterior member 106.
  • the smooth absorbability of fluids, such as excrement is ensured.
  • a plurality of elastic members 140 such as thread rubber along the lateral direction are provided between the non-skin side sheet 118 and the skin side sheet 120.
  • the elastic member 140 is a non-skin side in a state where it is stretched in a lateral direction by an adhesive region formed by adhering (applying) an adhesive such as a hot melt adhesive with a predetermined basis weight (weight per unit area). It is fixed to one or both of the sheet 118 and the skin side sheet 120.
  • the formation of the adhesive region may be performed by attaching an adhesive to the non-skin side sheet 118 and the skin side sheet 120, or may be performed by attaching an adhesive to the elastic member 140 side. May be done by both.
  • the pair of inner adhesive regions 142 have both lateral directions with respect to the longitudinal ends 102 ea and 102 eb of the absorbent main body 102. It is formed so as to overlap with the elastic member 140 on the inner side.
  • the adhesive is applied to the entire region using a coating means such as spiral coating, control seam coating, or full surface coating by a slot coater.
  • the contraction force in the lateral direction is adjusted by cutting at least a part of the elastic member 140.
  • the elastic member 140 arranged in a state of being extended in the lateral direction is cut between the pair of inner adhesive regions 142 by, for example, a cutter at the position of the center line CL.
  • the cut portion of the elastic member 140 is not limited to the position of the center line CL, and may be cut at a position deviated from the center line CL, or the elastic member 114 for the leg gathers LG and the three-dimensional gather LCG. It may be cut at a plurality of locations between the elastic members 116 for use. Further, the elastic member 140 may be cut in a plurality of cutting steps instead of being cut in a single cutting step (cutting operation).
  • the cut elastic member 140 contracts from the cut portion to the outside in the lateral direction of the elastic member 114 for the leg gathers LG and the elastic member 116 for the three-dimensional gather LCG.
  • this operation is referred to as “cutback”.
  • the expansion ratio of the portion disposed in the region overlapping the absorbent main body 102 is the expansion magnification of the elastic member 140 in the other region or the other elastic member.
  • “Elongation magnification” refers to the degree of expansion when each elastic member is fixed to a sheet or the like in an expanded state. The higher the expansion magnification, the greater the elastic member can express a contracting force. This is because when the expansion ratio of the elastic member 140 is low, cutback may be insufficient.
  • the elastic member 140 when the expansion ratio is low, after the elastic member 140 is cut at the center line CL, the elastic member 140 does not sufficiently contract, and a part of the elastic member 140 is the elastic member 114 for the leg gathers LG and the three-dimensional gather LCG. There is a possibility that the elastic member 116 may remain inside the horizontal direction. Therefore, by making the expansion ratio of the elastic member 140 in the region overlapping with the absorbent main body 102 higher than the expansion ratio of other elastic members or the like, the contraction due to cutback is appropriately generated. Accordingly, it is possible to suppress a part of the elastic member 140 contracted in the lateral direction from remaining inside the elastic member 114 for the leg gathers LG and the elastic member 116 for the three-dimensional gather LCG in the lateral direction.
  • the elastic member 140 by precisely controlling the position where the elastic member 140 is contracted and cutting it back, it is possible to adjust the tightening force around the waist with high accuracy, and the fit of the absorbent article 100 can be further improved. Moreover, since the elastic member 114 for the leg gathers LG and the elastic member 116 for the three-dimensional gather LCG and the elastic member 140 do not intersect with each other due to the cutback, the mutual contraction force is less likely to act, and the absorbency When the article 100 is worn, the wearer can easily move the legs and the like.
  • a plurality of horizontally long absorbent articles 100 are formed in the abdominal side exterior member 104 and the back side exterior member 106 formed by laminating the non-skin side sheet 118 and the skin side sheet 120.
  • a cut 150 is formed in the armpit areas 134be and 134re and the armpit areas 136be and 136re.
  • a plurality of the cut lines 150 are formed in a row at a predetermined interval (slit pitch) along the lateral direction of the absorbent article 100. Referring to FIG. 2, for example, in the armpit regions 134be and 134re, the length of each cut (slit length) is 3 [mm], and the slit pitch is 8 [mm], and four per row.
  • a cut 150 is formed.
  • five cuts 150 having a slit length of 2 [mm] are formed for each row with a slit pitch of 8 [mm].
  • a plurality of the cuts 150 in one row are formed in the vertical direction at a predetermined interval according to the interval between the elastic members 140 in the vertical direction.
  • the cut 150 is a portion obtained by finely cutting at least one of the non-skin side sheet 118 and the skin side sheet 120.
  • the linear cut 150 is preferably 5 mm to 15 mm in length. The cut 150 can be easily recognized by setting the slit length to 5 [mm] or more, and by setting the slit length to 15 [mm] or less, the material can be prevented from rolling up.
  • the cut 150 may be a linear cut or may be a notched portion with a width. Considering the strength of the member, it is preferable to have a linear cut.
  • the cut 150 may be formed in at least one of the abdominal exterior member 104 and the back exterior member 106, and is similarly formed in the abdominal exterior member 104 and the back exterior member 106. There may be. Further, the cut 150 may be formed on at least one of the non-skin side sheet 118 and the skin side sheet 120, and is similarly formed on the non-skin side sheet 118 and the skin side sheet 120. There may be.
  • the underarm regions 134be and 134re and the underarm regions 136be and 136re which are cut, have a width W in the lateral direction and a width M in the lateral direction.
  • the inner overlapping regions 132be and 132re and the inner upper regions 138be and 138re are located on both sides.
  • both side slit region SSA both side slit region SSA
  • a side region 136be and 136Re, and the inner upper region 138be and 138Re, to form a waist-opening AP wc of the absorbent article 100 the longitudinal direction of each end of the ventral side outer member 104 and the back side outer member 106 from parts, in the longitudinal direction has a length H 1, and the underarm areas 134be and 134Re, and the inner overlapping area 132be and 132Re, to form a leg opening AP tc of the absorbent article 100, the ventral side outer from each end of the longitudinal member 104 and the back side outer member 106 has a length H 2 in the vertical direction.
  • H H 1 + H 2 .
  • the portions that are within a distance H 20 from the end of the The cutback process is performed, and the elastic member 140 does not exist in the part of the absorbent core 108.
  • underarm area 134be and 134Re to form a leg opening AP tc of the absorbent article 100, the longitudinal portion which is within the distance H 20 from each end of the ventral side outer member 104 and the back side outer member 106 Is formed with a long cut 150.
  • short cut 150 is formed.
  • Short cuts 150 are formed in the side regions 136be and 136re.
  • the inner overlapping regions 132be and 132re and the inner upper regions 138be and 138re having a width M in the horizontal direction are a region where the cut 150 is not formed (hereinafter, this region is referred to as a “non-slit region NSA”). It has become. Further, the side region outer portion W 2 in the vicinity of the side seal region is a non-slit region over the entire length H of the abdominal exterior member 104 and the back exterior member 106.
  • the slit regions SSA on both sides of the ventral exterior member 104 and the back exterior member 106 are arranged in the lateral width direction at intervals with the non-slit region NSA interposed therebetween.
  • the abdominal exterior member 104 or the back exterior member 106 and the absorbent main body 102 overlap in the longitudinal direction and the lateral direction. It will be the part you have.
  • the lateral length M of the non-slit area NSA of the ventral exterior member 104 and the back exterior member 106 takes into account the action of the both-side slit area SSA and the bonding strength between the non-skin side sheet 118 and the skin side sheet 120. Can be set as appropriate.
  • both the sheet members are joined and integrated, and has elasticity in the waist direction of the absorbent article 100, that is, in the lateral direction.
  • Both side slit regions SSA of the non-skin side sheet 118 are joined to the inner layer material 31 and have elasticity.
  • the non-skin side sheet 118 and the skin side sheet 120 are joined in a planar shape over the length H in the longitudinal direction and have elasticity. This stretchability is further enhanced by interposing the elastic member 140 between the non-skin side sheet 118 and the skin side sheet 120.
  • the elastic member 140 is sandwiched between the non-skin-side sheet 118 and the skin-side sheet 120 in an expanded state, and thereby has elasticity.
  • the non-skin side sheet 118 and / or the skin side sheet 120 may be configured by using a stretchable material.
  • the gap between the two edges constituting the cut 150 is widened by the lateral contraction of the stretchable ventral exterior member 104 and the backside exterior member 106, and the ventral exterior member 104 and the backside exterior It becomes a vent of the member 106.
  • the vents open and close in accordance with the movement, and the interior of the absorbent article 100 Promotes moisture discharge and further enhances air permeability.
  • the both-side slit area SSA of the non-skin-side sheet 118 is more easily deformed than the non-slit area NSA and is excellent in flexibility. Further, due to the stretchability, the individual cuts 150 are twisted to make fine wrinkles, and the waist area becomes soft.
  • a plurality of elastic members 140 are arranged between the non-skin-side sheet 118 and the skin-side sheet 120 in a laterally extended state, spaced apart in the vertical direction, avoiding the cuts 150 formed in a row, and fixed by bonding.
  • the elastic member 140 is firmly sandwiched and bonded and fixed to the non-skin side sheet 118 and the skin side sheet 120 without being exposed to the outside from the cut 150.
  • the elastic member 140 provides stretchability in the waist direction, that is, in the lateral direction, with the non-skin side sheet 118 and the skin side sheet 120 forming the abdominal side exterior member 104 and the back side exterior member 106 as an integral body.
  • Elastic member 140 using a hot melt adhesive as described above, not only the joint on both sides slit area SSA, the inner overlap area 132be and 132re and the side outside lateral portion W 2 non-skin side sheet 118 and the skin side It is preferable that the sheet 120 is continuously joined in a planar shape. Thereby, not only hot melt adhesion applied to the elastic member 140 itself but also the sheet surfaces of the non-skin-side sheet 118 and the skin-side sheet 120 can be used to prevent the rubber from coming off.
  • the vertical interval between the row-shaped cut lines 150 formed at intervals in the horizontal direction may vary depending on the position in the vertical direction of the absorbent article 100, for example. It is preferable that the vertical intervals of the members 140 are different depending on the positions in the vertical direction, and the elastic members 140 are arranged one by one between two rows of cuts 150 adjacent in the vertical direction. When the pitch of the elastic member 140 is different depending on the position in the vertical direction, the interval between the cuts 150 adjacent in the vertical direction is different accordingly, and there is one between the two cuts 150 adjacent in the vertical direction. By arranging the elastic members 140 one by one, the material strength can be increased, and each cut 150 can be reliably opened.
  • a wearer wearing the absorbent article 100 generally tends to sweat more on the back side than on the abdomen side. Therefore, it is desirable to make the density of the cuts 150 in the backside exterior member 106 larger than the density of the cuts 150 in the ventral side exterior member 104.
  • the absorbent article 100 has a large rigidity against a stress that attempts to shear the absorbent article 100 along the lateral direction. Accordingly, it is desirable to make the density of the cuts in the armpit regions 134be and 134re larger than the density of the cuts in the inner upper regions 138be and 138re and the armpit regions 136be and 136re.
  • the plurality of cuts 150 formed as shown in FIG. 2 are the sum of the lengths of the cuts 150 in the side region 136be of the ventral-side exterior member 104 being L (be) bus , and the cuts 150 in the inner upper region 138be. of the total length L (be) mus, when the total length of the slit 150 in the underarm area 134be and L (be) bls, ⁇ ( L (be) bus + L (be) mus) / H 1 ⁇ satisfy ⁇ L (be) bls / H 2 ⁇ .
  • the total length of the cuts 150 per unit length in the vertical direction of the armpit region 136be and the inner upper region 138be is the length of the cut 150 per unit length of the armpit region 134be. Less than the sum of
  • the total length of the cuts 150 in the side region 136re of the backside exterior member 106 is L (re) bus
  • the cuts 150 in the inner upper region 138re length total L (re) mus of, when the total length of the slit 150 in the underarm area 134re and L (re) bls, ⁇ ( L (re) bus + L (re) mus) / H 1 ⁇ satisfy ⁇ L (re) bls / H 2 ⁇ .
  • the total length of the cuts 150 per unit length in the vertical direction of the armpit region 136re and the inner upper region 138re is the length of the cut 150 per unit length of the armpit region 134re. Less than the sum of
  • the region overlapping with the absorbent main body 102 in the longitudinal direction has a large rigidity against the force to tear the absorbent article 100 along the lateral direction.
  • a large number of cuts 150 in the region overlapping with the absorbent main body 102 in the vertical direction air passage is ensured, and by forming a few cuts 150 in the region not overlapping with the absorbent main body 102 in the vertical direction, ventilation is achieved.
  • the material strength can be ensured while ensuring.
  • the plurality of cuts 150 formed as shown in FIG. 2 are ⁇ (L (be) bus + L (re) bus ) / H 1 ⁇ ⁇ (L (be) bls + L ( re) bls ) / H 2 ⁇ .
  • the total length of the linear breaks 150 in the side regions 136be and 136re that do not overlap with the absorbent main body 102 in the vertical direction and does not overlap with the absorbent main body 102 in the horizontal direction is defined as the side region 136be and divided by the vertical length H 1 of 136re is overlapped with the absorbent body 102 in the longitudinal direction of the ventral side outer member 104 and the back side outer member 106, and does not overlap with the absorbent body 102 in the lateral direction the total length of linear cuts 150 in the underarm area 134be and 134Re, smaller than a value obtained by dividing the vertical length H 2 of the underarm area 134be and 134Re.
  • the region overlapping with the absorbent main body 102 in the vertical direction has a large rigidity against the force of tearing the absorbent article 100 along the horizontal direction.
  • the ventilation is ensured, and by forming a few cuts 150 in a region not overlapping with the absorbent main body 102 in the vertical direction, the material strength is ensured while ensuring the ventilation. This is because it can be secured.
  • the plurality of cuts 150 formed as shown in FIG. 2 are: L (be) is the total length of the cuts 150 in the ventral exterior member 104, and L is the total length of the cuts 150 in the backside exterior member 106. Assuming (re) , L (be) ⁇ L (re) is satisfied.
  • the cut 150 may not be formed in the inner upper region 138be of the ventral exterior member 104.
  • the portion of the abdominal exterior member 104 between the absorbent main body 102 of the absorbent article 100 and the waistline opening AP wc , in particular, the inner upper region 138be is laterally moved when the wearer pulls up the absorbent article 100. It is a part that is easy to break along.
  • the backside exterior member 106 but the wearer of the absorbent article 100 is more likely to sweat on the back side, so the backside exterior member 106 portion needs to ensure air permeability, When the wearer turns his back and leans forward, the wearer can move more easily if a cut is formed in the dorsal exterior member 106.
  • the possibility of breakage can be reduced, and the material strength can be ensured. Furthermore, it is also possible not to form the cut 150 in the inner upper region 138be and the armpit region 136be of the abdominal exterior member 104. Similarly to the above, by not forming a cut in the inner upper region 138be and the side region 136be of the abdominal exterior member 104, the possibility of breakage can be reduced and the material strength can be ensured.
  • FIG. 5 is a diagram showing another example of how to form the cut 150 in the ventral exterior member 104 and the back exterior member 106.
  • a plurality of cuts 150 are formed only in the armpit regions 134be and 134re of the abdominal exterior member 104 and the dorsal exterior member 106, and in the inner upper regions 138be and 138re and the armpit regions 136be and 136re, Not formed.
  • four cuts 150 are formed on one side.
  • the length of the cut is 3 [mm]
  • four cuts 150 are formed at intervals of 8 [mm], 12 [mm], and 8 [mm], respectively.
  • the total length of the cuts 150 per unit length in the vertical direction of the armpit region 136be and the inner upper region 138be in the ventral exterior member 104 is This is smaller than the total length of the cuts 150 per unit length of the lower region 134be.
  • the total length of the cuts 150 per unit length in the vertical direction of the armpit region 136re and the inner upper region 138re in the backside exterior member 106 is This is smaller than the sum of the lengths of the cuts 150 per unit length of the armpit region 134re.
  • FIG. 6 is a view showing still another example of how to form the cut 150 in the ventral exterior member 104 and the back exterior member 106.
  • a plurality of cuts 150 are formed only in the armpit regions 134be and 134re of the abdominal exterior member 104 and the dorsal exterior member 106, and the inner upper regions 138be and 138re and the armpit regions 136be and 136re Not formed.
  • Each of the cuts 150 formed in the ventral exterior member 104 and the back exterior member 106 has a length of 3 [mm].
  • the plurality of gaps 150 are formed at lateral positions closer to the absorbent main body 102 as the vertical position of the row of cut lines 150 extending in the lateral direction approaches the leg periphery opening APtc .
  • the cut 150 of the backside exterior member 106 is formed in the same manner as in FIG.
  • the total number of cuts 150 in the ventral exterior member 104 is 36, and the total number of cuts 150 in the backside exterior member 106 is 48.
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136be and the inner upper region 138be in the ventral exterior member 104 is This is smaller than the total length of the cuts 150 per unit length of the armpit region 134be.
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136re and the inner upper region 138re in the backside exterior member 106 is This is smaller than the sum of the lengths of the cuts 150 per unit length of the armpit region 134re.
  • the cut 150 is formed closer to the center of the absorbent article 100 as the position in the vertical direction approaches the leg opening AP tc , when the absorbent article 100 is worn, In the portion corresponding to the base of the foot, the bending rigidity in the longitudinal direction of the absorbent article 100 is lowered, and when the foot is moved, it becomes easy to bend along the shape of the groin portion. Further, since the material strength is reduced at the portion covering the groin, the abdomen exterior member 104 is easily fitted to the groin as the elastic member 140 contracts.
  • FIG. 7 is a view showing still another example of how to form the cut 150 in the ventral exterior member 104 and the back exterior member 106.
  • a plurality of cuts 150 are formed only in the armpit regions 134be and 134re of the abdominal exterior member 104 and the dorsal exterior member 106, and in the inner upper regions 138be and 138re and the armpit regions 136be and 136re, Not formed.
  • the cut 150 formed in the abdominal exterior member 104 and the back exterior member 106 has a length of 3 [mm] in a region having a lateral length of 3 [mm] and a longitudinal length of 2 [mm]. ] Is formed as a multiple slit 150 having three cuts.
  • interruption of the multiple slit 150 will become a some strip
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136be and the inner upper region 138be is It becomes smaller than the sum total of the length of the cut 150 per unit length of the armpit area 134be.
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136 re and the inner upper region 138 re in the backside exterior member 106. is smaller than the total length of the cuts 150 per unit length of the armpit region 134re.
  • FIG. 8 is a diagram showing still another example of how to form the cut 150 in the ventral exterior member 104 and the back exterior member 106.
  • a plurality of cuts 150 are formed only in the armpit regions 134be and 134re of the abdominal exterior member 104 and the dorsal exterior member 106, and in the inner upper regions 138be and 138re and the armpit regions 136be and 136re, Not formed.
  • the armpit regions 134be and 134re there are two different arrangement patterns of the cuts 150 along each row of the cuts 150 that are continuous in the horizontal direction.
  • four cuts 150 having a length of 3 [mm] are formed at intervals of 8 [mm], 12 [mm], and 8 [mm], respectively.
  • one pattern is a pattern in which only even-numbered cuts 150 are formed, and another pattern is a pattern in which only odd-numbered cuts are formed.
  • the above one pattern and another pattern are alternately formed at different positions in the vertical direction of the armpit regions 134be and 134re.
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136be and the inner upper region 138be is This is smaller than the total length of the cuts 150 per unit length of the lower region 134be.
  • the total length of the cuts 150 per unit length in the vertical direction of the side region 136re and the inner upper region 138re is This is smaller than the sum of the lengths of the cuts 150 per unit length of the armpit region 134re.
  • FIG. 9 is a diagram showing still another example of how to form the cut 150 in the ventral exterior member 104 and the back exterior member 106.
  • the arrangement of the cut lines 150 in FIG. 9 is obtained by replacing the cut lines 150 of the backside exterior member 106 with the multiple slits 150 in the arrangement of the cut lines 150 in FIG.
  • the cut 150 formed in the backside exterior member 106 has a length 3 [mm] in a region having a length 3 [mm] in the horizontal direction and a length 2 [mm] in the vertical direction. mm] is formed as a multiple slit 150.
  • the plurality of cuts 150 or the multiple slits 150 are formed only in the armpit regions 134be and 134re of the ventral exterior member 104 and the dorsal exterior member 106, and the inner upper regions 138be and 138re and the armpit regions 136be and 136re. Is not formed.
  • the plurality of cuts 150 and the multiple slits 150 formed as shown in FIG. 9 are the sum of the lengths of the cuts 150 in the ventral exterior member 104 being L (be) , and the multiples in the back exterior member 106 are multiplexed.
  • L (re) the total length of the slits 150 constituting the slit 150
  • L (be) ⁇ L (re) is satisfied.
  • the total length of the cuts 150 per unit length in the vertical direction of the armpit region 136be and the inner upper region 138be in the ventral exterior member 104 is This is smaller than the total length of the cuts 150 per unit length of the armpit region 134be.
  • the side regions 136be that do not overlap with the absorbent main body 102 in the vertical direction and do not overlap with the absorbent main body 102 in the horizontal direction, and value the total length of the linear cuts 150 in 136Re, divided by the vertical length H 1 aside region 136be and 136Re are absorbed in the longitudinal direction of the ventral side outer member 104 and the back side outer member 106
  • the total length of the linear breaks 150 in the underarm regions 134be and 134re that overlap the sex main body 102 and does not overlap the absorbent main body 102 in the lateral direction is the vertical length of the underarm regions 134be and 134re. It is smaller than a value obtained by dividing H 2.
  • the arrangement of cuts in FIG. 10 is the same as the arrangement of cuts in FIG. 5, and the cuts 150 are each formed in an X shape.
  • interruption of FIG. 11 is the same as the arrangement
  • FIG. 12 is a diagram showing a positional relationship between two elastic members 140 adjacent to each other in the longitudinal direction and the cut 150 in the absorbent article 100 according to the present invention.
  • the air permeability can be further improved by the interaction between the elastic member 140 and the cuts 150.
  • the cut 150 is formed in at least one of the non-skin side sheet 118 and the skin side sheet 120, and the elastic member 140 avoids the cut 150 formed in a row in the lateral direction, and the non-skin side sheet 118.
  • a plurality of sheets are arranged between the skin side sheet 120 and the skin side sheet 120 in an extended state in the horizontal direction with an interval in the vertical direction. 12
  • the distance between the elastic members 140 0 and 140 1 adjacent to each other in the longitudinal direction (yarn Gomupitchi) is d
  • the distance between the lower side of the elastic member 140 0 and cut 150 is d l
  • the distance between the cut 150 and the upper elastic member 140 1 is d u.
  • non-skin side sheet 118 and / or the skin side sheet 120 in which the cut 150 is formed is an isotropic material.
  • one of the elastic members 140 1 and the other cut 150 between the elastic member 140 0 adjacent to each other in the vertical direction is positioned closer to the other elastic member 140 0. Therefore, in a single cut 150, the lower edge has a small distance from the other resilient member 140 0, subject to greater tension from the other resilient member 140 0, the upper edge of one large distance from the elastic member 140 1, subject to less tension from one of the elastic members 140 1. Therefore, the lower edge is wrinkled more finely than the upper edge that is further away from the elastic member. Therefore, since the state of the wrinkles formed between the edge on one side of the same cut and the edge on the other side is different, the cut 150 is surely opened.
  • 13A and 13B are diagrams schematically showing the relationship between the direction of the opening of the relative positions and cut 150 of the elastic member 140 0 and 140 break 150 between 1 adjacent to each other in the vertical direction.
  • the cut 150 when the cut 150 is formed above the bisector bis is the lower side of the elastic member 140 0 distance from the close cut 150 lower edge, the upper edge of the lower elastic member 140 0 stretching more fine wrinkles under tension T in accordance with the magnification, the upper elastic member 140 cut 150 distance from 1 is short, upper under tension T in accordance with the stretching ratio of the elastic member 140 1 by a moderate wrinkles. In this case, the cut 150 creates an upward opening.
  • the upward opening is formed by the cut 150, when the assistant widens the waist opening AP wc of the absorbent article 100 and makes the wearer wear it, the wearer or the assistant surely cuts the slit.
  • the existence of 150 can be recognized.
  • the elastic members 114, 116, and 140 are arranged between the non-skin-side sheet 118 and the skin-side sheet 120 at a predetermined expansion ratio that represents the degree of expansion when each elastic member is fixed to a sheet or the like in an expanded state.
  • These elastic members express a larger contractile force as the expansion ratio is higher. Therefore, the absorbent article is usually contracted by the contraction force of the elastic member when it is on the market.
  • the “distance between the cut line 150 and the elastic member 140” in the present specification means the “distance in the stretched state” of the absorbent article 100.
  • the “extension state of the absorbent article 100” means that when the absorbent article 100 is extended in the horizontal direction and the vertical direction against the contraction force of the elastic members 114, 116, 140, the elastic members 114, The state where it has extended to such an extent that a wrinkle and a gather cannot be visually recognized in the part in which 116 and 140 are arrange
  • positioned is said.
  • the shape of the absorbent article 100 stretched as described above is the shape of the absorbent article 100 when it is flattened in a state where the contraction force by the elastic members 114, 116, and 140 is not expressed.
  • FIGS. 14A and 14B are views showing a state in which the direction of the opening (upper or lower) and the size of the opening differ depending on the distance between the cut 150 and the two elastic members 140 adjacent in the vertical direction.
  • FIG. 14A 3 one elastic member 140 0 140 1 and 140 2, are arranged in the longitudinal direction at equal intervals of the yarn Gomupitchi d.
  • a bisector of the distance d between the elastic members 140 0 and 140 1 is bis 1
  • a bisector of the distance d between the elastic members 140 1 and 140 2 is bis 2 .
  • ten cuts 150 10 ,..., 150 19 are arranged in different positions at a predetermined slit pitch in the lateral direction, and between the elastic members 140 1 and 140 2.
  • 10 cut in the transverse direction at different positions at a predetermined slit pitch 0.99 u0, ..., are lined up 0.99 u9.
  • FIG. 14A illustrates a case where the vertical interval k of the cut is constant regardless of the position in the horizontal direction, and the rubber thread pitch d and the vertical interval k of the cut are substantially equal.
  • the cut 150 10 is located closest to the elastic member 140 0 between the elastic members 140 0 and 140 1 , from which the slit pitch is increased by one, 150 11 , each move to ... and laterally cut 0.99 l1, ... are formed towards the top in the vertical direction, the position of the cut 0.99 l5, cut 0.99 l5 is located on the bisector bis 1, the position of 0.99 l9 Then, the cut 150 l9 is located closest to the elastic member 140 1 between the elastic members 140 0 and 140 1 .
  • the distance k in the longitudinal direction of the yarn Gomupitchi d and cuts substantially equal for example, between the elastic member 140 1 and 140 2 cuts 0.99 u0 at the lateral positions equal to the lateral position of the cut 0.99 l0 vertical position at will substantially the same as the vertical position of the cut 0.99 l0 between the elastic members 140 0 and 140 1.
  • the cut 150 u5 at the horizontal position equal to the horizontal position of the cut 150 15 substantially overlaps the bisector bis 2 .
  • cuts 0.99 l0 and cut 0.99 u0 are both forms a downward largest opening, cut 0.99 l5 and cut 0.99 u5 is not substantially open, cut 0.99 l9 and cut 0.99 u9 are both upward The largest opening is formed.
  • FIG. 14B shows a case where the thread rubber pitch d is constant, but the vertical interval k of the cut varies irregularly depending on the position in the horizontal direction.
  • distance k l between the member 140 1, and with respect to the distance k u between the cut 0.99 ux and the elastic member 140 1, shows a case where k l> k u holds, x 6 ⁇ 9 is, k
  • the case where l ⁇ ku is satisfied is shown.
  • k l> k u is at least one of the cuts 0.99 lx and cut 0.99 ux forms a downward opening
  • k l ⁇ k u is at least one of the cuts 0.99 lx and cut 0.99 ux
  • both the cut 150 l0 and the cut 150 u0 form a downward opening
  • the cut 150 l1 and the cut 150 u1 forms an upward opening
  • the cut 150 u1 forms a downward opening.
  • Both l9 and the cut 150 u9 form an upward opening.
  • FIG. 15 is a diagram illustrating a case where the approaching direction of the cut 150 to the elastic member 140 is different at different places in the same region.
  • the right underarm region 134be along transverse ventral side outer member 104 includes a different portion A 1 and A 2, along transverse ventral side outer member 104 aside region 136be right include different portions a 3 and a 4.
  • Three elastic members 140 l , 140 m , and 140 u that are adjacent in the vertical direction are disposed in each of the four portions A 1 , A 2 , A 3 , and A 4 . Further, in the portions A 1 , A 2 , A 3 , and A 4 , a break 150 l and a break 150 are provided between the elastic members 140 l and 140 m and between the elastic members 140 m and 140 u , respectively. u is formed.
  • a lower break 0.99 l are formed approached the lower side of the elastic member 140 l, the upper cut 0.99 u is formed closer to the upper side of the elastic member 140 u. Accordingly, the cut 150 l forms a downward opening, and the cut 150 u forms an upward opening.
  • both the lower cut 0.99 l and upper cut 0.99 u is formed approached the elastic member 140 m.
  • the elastic member 140 m is an upper elastic member for the cut 150 l and a lower elastic member for the cut 150 u . Accordingly, the cut 150 l forms an upward opening and the cut 150 u forms a downward opening.
  • both the cut 150 l and the cut 150 u form a downward opening.
  • the lower side of the cut 0.99 l are formed closer to the upper side of the elastic member 140 m
  • the upper cut 0.99 u is formed closer to the upper side of the elastic member 140 u. Accordingly, both the cut 150 l and the cut 150 u form an upward opening.
  • different portions such as the armpit regions 136be and 136re and the armpit regions 134be and 134re including a plurality of portions can have different opening directions.
  • is larger than the value of, among certain upper and lower elastic members 140 break 150 1 l1 and 140 u1 at least one of tension may be greater than the tension of the other cut 150 second elastic member 140 l2 and 140 u2.
  • the tension of the elastic member stretched between the non-skin-side sheet 118 and the skin-side sheet 120 is an expansion ratio that is a degree of expansion when each elastic member is fixed to the sheet or the like in the expanded state. It depends on. The above tension is a tension when the elastic member 140 is stretched on the sheet.
  • the contraction force of the elastic member can be increased as the degree of deviation of the position of the cut 150 between the two elastic members 140 adjacent in the vertical direction is increased, and the opening is further increased. I can.
  • both the direction and size of the opening of the cut 150 can be made different between a certain part and another part.
  • FIG. 16 is a diagram illustrating a case where the approaching direction of the cut 150 to the elastic member 140 is different as a whole according to two different regions.
  • one of the two different regions is the left armpit region 134be when viewed in the lateral direction of the ventral-side exterior member 104, and the other of the two different regions is the lateral direction of the ventral-side exterior member 104.
  • the cut 150 lh i, j with the left armpit region 134be is located at the i-th position from the left and the jth position from the bottom in the left armpit region 134be, and the right armpit region 134be It is assumed that a certain cut 150 rh m, n is in the m-th position from the left and the n-th position from the bottom in the right side arm region 134be.
  • the cut 150 lh i, j is between the j ⁇ 1th elastic member 140 j ⁇ 1 and the jth elastic member 140 j counted from the bottom
  • the cut 150 rhm , n is n counted from the bottom -1st elastic member 140 n-1 and counting from the bottom is between n-th elastic members 140 n.
  • the distance between the cut 150 lh i, j and the elastic member 140 j ⁇ 1 is d lh l, i, j
  • the distance between the cut 150 lh i, j and the elastic member 140 j is d lh u, i, j
  • the distance between the slit 150 rh m, n and the elastic member 140 n-1 is dr rh 1, m, n
  • the distance between the slit 150 rh l, m, n and the elastic member 140 n is dr rh
  • a value obtained by dividing the distance between a certain cut and the lower elastic member by the distance between the certain cut and the upper elastic member, that is, ⁇ d lh l, i, j / d lh u, i, j ⁇ , and ⁇ d rh l, m, n / dr rh u, m, n ⁇ is a measure of how close a cut is to either the lower elastic member or the upper elastic member.
  • the cut 150 lh i, j is the lower elastic member than the upper elastic member 140 j 140 j ⁇ 1 is arranged close to 1 and when it is close to 1, the cut 150 lh i, j is located approximately at the center of the upper elastic member 140 j and the lower elastic member 140 j ⁇ 1.
  • the cut 150 lh i, j is elastic above the lower elastic member 140 j ⁇ 1. It is situated closer to member 140 j.
  • a scale indicating the tendency of the entire region is considered, not a scale of the positional relationship of only a specific break.
  • the scale indicating the tendency of the entire region can be obtained, for example, by averaging the values of ⁇ d lh l, i, j / d lh u, i, j ⁇ for all i and j.
  • FIG. 17 is a perspective view of an absorbent article 100 according to the second embodiment of the present invention, such as a three-piece type disposable diaper.
  • the absorbent article 100 has a vertical direction, a horizontal direction, and a thickness direction perpendicular to each other.
  • the absorbent article 100 includes an abdominal exterior member 104 whose longitudinal direction is disposed along the lateral direction, a back exterior member 106 whose longitudinal direction is disposed along the lateral direction, and a longitudinal direction along the longitudinal direction. And an absorbent body 102 having an absorbent core 108 disposed therein.
  • the abdominal exterior member 104 and the back exterior member 106 include a non-skin side sheet 118, a skin side sheet 120, and an elastic member 140 provided between the non-skin side sheet 118 and the skin side sheet 120, respectively. .
  • a plurality of linear cuts 150 are formed in rows on at least the non-skin-side sheet 118 of the ventral-side exterior member 104, and a plurality of linear shapes are formed on at least the non-skin-side sheet 120 of the back-side exterior member 106.
  • the notches 150 are formed in a row.
  • the cut 150 is provided in the ventral exterior member 104 and the back exterior member 106.
  • material strength can be secured while maintaining air permeability.
  • the longitudinal position of the dorsal exterior member 106 is equal to the longitudinal position where the plurality of cuts 150 are formed in a row in the ventral exterior member 104.
  • the elastic member 140 of the backside exterior member 106 may be present.
  • the elastic member 140 of the abdominal exterior member 106 is located at the longitudinal position of the abdominal exterior member 104, which is equal to the longitudinal position where the plurality of cuts 150 are formed in a row in the back exterior member 106. May exist.
  • the elastic member 140 of the other member is present at the position where the cut 150 of either the abdominal exterior member 104 or the back exterior member 106 is formed.
  • the elastic member 140 of the other member acts as a reinforcing member for the portion where the cut lines 150 of the one member are formed in a row. Therefore, the material strength can be further increased.
  • the absorbent article 100 can have the configuration described in FIGS.
  • Absorbent article 102 Absorbent body 104: Abdominal exterior member 106: Back exterior member 108: Absorbent core 110: Top sheet member 112: Back sheet member 114, 116: Elastic member 118: Non-skin side sheet 120 : Skin side sheet 132be, 132re: Inner overlap area 134be, 134re: Armpit area 136be, 136re: Armpit area 138be, 138re: Inner upper area 140: Elastic member (thread rubber) 150: Break

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  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne un article absorbant dont des éléments élastiques agissant sur des fentes de celui-ci amène chacune des fentes à s'ouvrir en permanence, pendant que l'article est porté. Cet article absorbant présente une direction verticale, une direction horizontale et une direction d'épaisseur perpendiculaires les unes aux autres, et présente un élément externe côté ventral, positionné dans la direction horizontale et un élément externe côté dorsal, positionné dans la direction horizontale. L'élément externe côté ventral et l'élément externe côté dorsal sont munis chacun, sur leur côté non en contact avec la peau, d'une feuille non côté peau, et sur leur côté en contact avec la peau, d'une feuille côté peau; l'élément externe côté ventral et/ou l'élément externe côté dorsal comportent une pluralité de fentes qui s'étendent sur une longueur prescrite dans la direction horizontale et qui sont ménagées dans la feuille non côté peau ou dans la feuille côté peau; la pluralité de fentes sont ménagées dans les directions horizontale et verticale et distantes les unes des autres par des intervalles prescrits; une pluralité de fils de caoutchouc sont ménagés dans la direction horizontale entre la feuille non côté peau et la feuille côté peau; l'une des fentes est ménagée entre l'un des fils de caoutchouc et un autre fil de caoutchouc qui lui est adjacent dans la direction verticale; et la distance entre ladite une fente et ledit un fil de caoutchouc est différente de la distance entre cette fente et l'autre fil de caoutchouc.
PCT/JP2015/068897 2015-06-30 2015-06-30 Article absorbant comportant des fentes inclinées vers une direction d'élastique de taille WO2017002211A1 (fr)

Priority Applications (3)

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PCT/JP2015/068897 WO2017002211A1 (fr) 2015-06-30 2015-06-30 Article absorbant comportant des fentes inclinées vers une direction d'élastique de taille
JP2016513921A JP6001810B1 (ja) 2015-06-30 2015-06-30 胴回りゴムの一方によったスリットを有する吸収性物品
TW105119191A TWI597056B (zh) 2015-06-30 2016-06-17 An absorbent article having a slit near one of the waist rubbers

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PCT/JP2015/068897 WO2017002211A1 (fr) 2015-06-30 2015-06-30 Article absorbant comportant des fentes inclinées vers une direction d'élastique de taille

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WO2019188564A1 (fr) * 2018-03-27 2019-10-03 大王製紙株式会社 Structure étirable pour article vestimentaire jetable et article vestimentaire jetable de type culotte ayant une structure étirable

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Publication number Priority date Publication date Assignee Title
JP6145559B1 (ja) * 2016-12-28 2017-06-14 ユニ・チャーム株式会社 パンツ型おむつ、及び、パンツ型おむつの着用方法
JP2018108323A (ja) * 2017-03-22 2018-07-12 ユニ・チャーム株式会社 パンツ型おむつ、及び、パンツ型おむつの着用方法
JP6506492B1 (ja) * 2017-06-21 2019-04-24 花王株式会社 吸収性物品
CN112004507B (zh) * 2018-04-24 2022-08-23 尤妮佳股份有限公司 吸收性物品

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JPH03280951A (ja) * 1990-03-12 1991-12-11 Uni Charm Corp 使い捨てパンツ型着用物品
JPH077621U (ja) * 1993-07-08 1995-02-03 株式会社日本吸収体技術研究所 テープレス形吸収体製品
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JP2012139247A (ja) * 2010-12-28 2012-07-26 Kao Corp パンツ型着用物品およびその製造方法
JP2012232102A (ja) * 2011-05-04 2012-11-29 Kang Na Hsing Enterprise Co Ltd 使い捨て紙おむつ
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JPH03251245A (ja) * 1990-02-27 1991-11-08 Uni Charm Corp 使い捨て着用物品
JPH03280951A (ja) * 1990-03-12 1991-12-11 Uni Charm Corp 使い捨てパンツ型着用物品
JPH077621U (ja) * 1993-07-08 1995-02-03 株式会社日本吸収体技術研究所 テープレス形吸収体製品
JP2004267335A (ja) * 2003-03-06 2004-09-30 Kao Corp パンツ型おむつ
JP2012139247A (ja) * 2010-12-28 2012-07-26 Kao Corp パンツ型着用物品およびその製造方法
JP2012232102A (ja) * 2011-05-04 2012-11-29 Kang Na Hsing Enterprise Co Ltd 使い捨て紙おむつ
JP2012235809A (ja) * 2011-05-09 2012-12-06 Unicharm Corp 着用物品

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019188564A1 (fr) * 2018-03-27 2019-10-03 大王製紙株式会社 Structure étirable pour article vestimentaire jetable et article vestimentaire jetable de type culotte ayant une structure étirable

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TWI597056B (zh) 2017-09-01
TW201705926A (zh) 2017-02-16
JP6001810B1 (ja) 2016-10-05
JPWO2017002211A1 (ja) 2017-06-29

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