WO2016185705A1 - Article absorbant, et dispositif de fabrication et procédé de fabrication associé - Google Patents

Article absorbant, et dispositif de fabrication et procédé de fabrication associé Download PDF

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Publication number
WO2016185705A1
WO2016185705A1 PCT/JP2016/002371 JP2016002371W WO2016185705A1 WO 2016185705 A1 WO2016185705 A1 WO 2016185705A1 JP 2016002371 W JP2016002371 W JP 2016002371W WO 2016185705 A1 WO2016185705 A1 WO 2016185705A1
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WO
WIPO (PCT)
Prior art keywords
absorber
region
recess
top sheet
absorbent article
Prior art date
Application number
PCT/JP2016/002371
Other languages
English (en)
Japanese (ja)
Inventor
勝彦 杉山
彰 園田
竜祐 尾▲崎▼
瀧山　吉宏
遥絵 清水
敏弘 野田
光 槇原
Original Assignee
王子ホールディングス株式会社
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
Priority claimed from JP2015100512A external-priority patent/JP2016214405A/ja
Priority claimed from JP2015100510A external-priority patent/JP6503877B2/ja
Priority claimed from JP2015100509A external-priority patent/JP6413921B2/ja
Priority claimed from JP2016044974A external-priority patent/JP6558281B2/ja
Application filed by 王子ホールディングス株式会社 filed Critical 王子ホールディングス株式会社
Priority to CN201680027083.0A priority Critical patent/CN107530213A/zh
Publication of WO2016185705A1 publication Critical patent/WO2016185705A1/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
    • 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/531—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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression

Definitions

  • the present invention relates to an absorbent article such as a disposable diaper and an absorbent pad, a manufacturing apparatus and a manufacturing method thereof.
  • Absorbent article absorbs most of the body fluid discharged by the absorber.
  • the diaper since the diaper covers the abdomen, buttocks and crotch parts, the diaper is affected by various bodies such as walking, turning over, and baby's high and low, especially the movement of legs.
  • the absorbent body may be twisted, broken, or cracked by various body movements. If it does so, the fitting property to the crotch of a diaper will fall and it will become easy to raise
  • embossing is an oblique lattice-like compressed groove extending on the skin contact surface side of the absorbent body in an inclined manner with respect to the direction from the front body to the back body of the diaper. Some are processed.
  • the absorbent body generally used for absorbent articles absorbs and retains liquids such as urine, and therefore, is mainly a mixture of fluffy pulp and a super absorbent polymer (hereinafter referred to as “SAP”). It is composed of an absorbent core that is a body and a core covering material such as a tissue that wraps the absorbent core.
  • SAP super absorbent polymer
  • ultra-thin For such absorbent articles, lightweight and compact products called ultra-thin are required from the standpoints of resource saving, logistics cost reduction, and improved storage efficiency at retail stores. This is becoming mainstream.
  • Such an ultra-thin absorbent article can be realized by reducing the weight of the absorbent that occupies most of the weight and volume of the absorbent article and making it compact. That is, the thinning of the absorbent core made of a mixture of fluffy pulp and SAP is realized by increasing the relative content of SAP or using a sheet-like SAP instead of the mixture. ing.
  • Patent Documents 2 and 3 since the grooves are formed in an oblique lattice shape on the skin contact surface side, the liquid diffusibility on the absorber surface is also improved. This also leads to an increase in utilization efficiency of the absorber, so that a reduction in cost is also expected.
  • the compression groove is formed by rotating and moving an embossing roll with an embossing pattern protruding on the surface on a long absorbent sheet.
  • the embossing roll is rotated on a long absorbent sheet or the like, embossed, and then laminated into various sheets, and then cut into a necessary size.
  • JP 2014-69002 A Japanese Patent Laid-Open No. 2015-16218 JP 2013-135824 A
  • Patent Documents 1 to 3 causes the absorber surface to be twisted in the intersecting region of the two compressed grooves forming the absorber lattice during the embossing process. May be broken. Further, since the material is gathered in the intersecting region more than other portions of the surface of the absorber, there is a problem that the absorber becomes hard, the touch becomes worse, and the flexibility is impaired.
  • the configurations disclosed in Patent Documents 2 and 3 in which grooves are provided on the surface of the absorber on the surface sheet side improve the diffusibility of the liquid on the surface of the absorber compared to the configuration disclosed in Patent Document 1. There are advantages, but the problem is even more pronounced.
  • the present inventor compressed the surface sheet and the absorber together from the surface sheet (top sheet) side arranged on the skin contact surface side of the absorber, and formed an absorptivity having a compression groove that is harder to loosen. Prototype of the article.
  • the compressed groove is formed by rotating the embossing roll on the absorbent body on which the top sheet is laminated.
  • an emboss pattern having a component extending in an oblique direction such as an oblique lattice shape
  • the compressed groove itself Since the compressed groove itself is lower than the uncompressed portion, it does not touch the wearer's skin directly, but the surface sheet and the absorber are near the intersection of the lattice (lattice point), that is, near the corner of the lattice. It is fixed in a tensioned state. For this reason, since the SAP may hit the top sheet, the corners of the lattice on the skin contact surface of the top sheet are harder than other parts, such as the feeling of the superabsorbent resin being felt as a touch. turn into.
  • the corners of the lattice are higher (closer to the wearer's skin) than the bottom of the compression grooves, making it easier to touch the wearer's skin and giving the wearer a firm feel and a stiff feel. May end up. Since the absorbent article is in contact with delicate skin portions such as the crotch, it is not preferable that the corner portions of the lattice are hard because a particularly soft touch is required.
  • the top sheet is the skin contact surface of the wearer, it is a place where the wearer can easily observe the wearer when wearing it. If the embossed pattern has little regularity or design, the aesthetic effect is low, and in some cases, the wearer may misunderstand wrinkles due to manufacturing defects.
  • the object of the present invention has been made in view of the above problems, and the object of the present invention is to provide an absorbent article with improved flexibility and fit of the absorber.
  • Another object of the present invention is to form a visually excellent emboss pattern having a component extending in an oblique direction by compressing the top sheet and the absorber together, and also in the vicinity of an intersection where the components extending in the oblique direction intersect. It is an object of the present invention to provide an absorbent article that gives a wearer a soft touch.
  • the present invention provides an absorbent article in which an embossed pattern having a component extending in an oblique direction is formed by compressing both a surface sheet and an absorbent body, and gives the wearer a soft touch even in a portion where components extending in the diagonal direction intersect. It is an object to provide an absorbent article to be given.
  • a first aspect of the present invention is an absorbent article including a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.
  • a group of first straight lines extending in parallel to the first direction and a group of second straight lines extending in parallel to the second direction intersecting the first direction are formed on the surface of the absorber on the surface sheet side.
  • a thinned portion that is provided along a lattice line of the lattice and is formed to have a portion that is recessed from the surface of the absorber on the surface sheet side, The thinned portion is characterized in that a boundary is provided in an intersection region including an intersection of the lattice lines and a periphery thereof.
  • the basic concept of the present invention is represented by such a form. According to this, since the rigidity in the vicinity of the region where the plurality of thinned portions intersect is difficult to increase, the flexibility of the absorbent body is improved, and an absorbent article with improved fit is provided.
  • the basic concept of the present invention is developed in the following embodiments. That is, The first embodiment in which the intersecting region is compressed so that the depth from the surface on the surface sheet side is shallower than the recessed portion of the thinned portion,
  • the intersection region is composed of a central region including the intersection and an outer region, and the outer region has a depth from the surface on the surface sheet side that is shallower than the recessed portion of the thinned portion and deeper than the central region.
  • a second embodiment compressed into The third embodiment in which the intersection region is composed of a central region including the intersection and an outer region outside the intersection, and the central region is compressed so that the depth from the surface on the surface sheet side is deeper than the outer region,
  • the fourth embodiment wherein the intersection region is an uncompressed region; and -The intersecting region is pressed so that the depth from the surface on the surface sheet side is shallower than the recessed portion of the thinned portion, and a raised portion is generated on the surface on the back sheet side of the corresponding absorber.
  • a fifth embodiment It is.
  • the other form of this invention is a manufacturing apparatus which manufactures the absorbent article which concerns on 5th Embodiment, A first rotating member having an outer peripheral surface portion on which a convex portion is formed and configured to press the top sheet side of the absorber with the convex portion, wherein the convex portion is a portion of the absorber; A first convex portion configured to form a first concave portion extending along the first direction on the surface sheet side, and a second direction different from the first direction in a state of crossing the first concave portion.
  • a second convex portion configured to form a second concave portion that extends, and a first rotating member
  • a second rotating member having an outer peripheral surface portion formed with a depression and configured to sandwich the absorber and to contact the back sheet side of the absorber by rotating together with the first rotating member.
  • the said hollow part is arrange
  • another embodiment of the present invention is an absorbent article comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.
  • a manufacturing method for manufacturing A first recess extending along a first direction on the surface sheet side of the absorber; a second recess extending along a second direction different from the first direction in a state intersecting with the first recess; Pressing the top sheet side of the absorber so that is formed, Simultaneously with the pressing step, the back sheet side of the absorber is formed such that a raised portion is formed on the back sheet side of the absorber corresponding to a region where the first recess and the second recess intersect. Step to transform This is applied to the manufacture of the absorbent article according to the fifth embodiment.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2. It is a figure which shows the absorber of the disposable diaper which concerns on 1st Embodiment of this invention.
  • FIG. 6 is a partial cross-sectional view taken along the line VI-VI in FIG. 5.
  • FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 8 and is a cross-sectional view showing a thinned portion of the upper surface of the absorber. It is an enlarged view which shows the upper surface of the absorber which concerns on 2nd Embodiment of this invention.
  • FIG. 11 is a cross-sectional view taken along the line XI-XI in FIG. 10 and is a cross-sectional view showing a thinned portion of the upper surface of the absorber.
  • FIG. 13 is a cross-sectional view taken along the line XIII-XIII in FIG. 12, showing a thinned portion on the upper surface of the absorber.
  • FIG. 14 is a partially broken plan view of the diaper according to the third embodiment of the present invention, viewed from the skin contact surface side.
  • FIG. 15 is a cross-sectional view of the diaper shown in FIG. 14 cut along line XV-XV.
  • FIG. 16 is an exploded perspective view in which a diaper according to a third embodiment of the present invention is developed and disassembled.
  • FIG. 17 is the partial top view which looked at the absorber part of the diaper which concerns on 3rd Embodiment of this invention from the top sheet side.
  • FIG. 18 is a schematic partial plan view showing an embossed pattern portion having an oblique lattice shape in FIG.
  • FIG. 19 is an enlarged partial plan view in which a part of FIG. 18 is enlarged.
  • 20 is a cross-sectional view taken along line XX-XX in FIG. 21 is a cross-sectional view taken along line XXI-XXI in FIG.
  • FIG. 22 is a partially broken plan view of a diaper according to a fourth embodiment of the present invention, viewed from the skin contact surface side.
  • FIG. 23 is a cross-sectional view of the diaper shown in FIG.
  • FIG. 24 is an exploded perspective view showing the diaper according to the third embodiment of the present invention developed and disassembled.
  • FIG. 25 is a partial top view of the absorbent part of the diaper according to the third embodiment of the present invention as viewed from the top sheet side.
  • FIG. 26 is a schematic partial plan view showing an embossed pattern portion having an oblique lattice shape in FIG.
  • FIG. 27 is an enlarged partial plan view in which a part of FIG. 26 is enlarged.
  • FIG. 33 is a schematic diagram showing a cross section in the XXXIII-XXXIII direction in FIG. 32.
  • FIG. 33 is a schematic diagram showing a cross section in the XXXIV-XXXIV direction in FIG. 32.
  • FIG. 33 is a schematic diagram showing a cross section in the XXXV-XXXV direction in FIG. 32.
  • the “lattice” means a group of first straight lines extending in parallel to the first direction and a second extending in parallel to the second direction intersecting the first direction.
  • the 1st and 2nd direction does not necessarily need to be orthogonal.
  • intersection refers to a portion where the grid line that is the first straight line and the grid line that is the second straight line intersect, but in the following description, it may be referred to as a “lattice point”.
  • “Compression” means that the thickness of the absorber is reduced by the action of force to increase the density.
  • “pressing” does not necessarily mean that the thickness of the absorber is reduced by the action of force to increase the density. That is, for example, when a force is applied to the intersecting region, the thickness on the opposite side of the absorber is raised, so that the thickness of the absorber is not substantially reduced and the density is not increased.
  • “compression” or “pressing” is not only directly caused by the action of force but also indirectly caused by the surrounding being pulled following the sinking of the acting part of the direct force. Including things.
  • the “thinned portion” is formed along a lattice line of the lattice, and is formed so as to have a portion recessed from the surface of the absorber on the surface sheet side.
  • This “thinned part” has a boundary in the crossing region including the intersection of the lattice lines and the periphery thereof, that is, it extends between the crossing region so as not to protrude into the crossing region. It is defined as having
  • the “thinned portion” may be in the shape of a concave portion that is continuous in the extending range, that is, a shape of a long groove (in the second to fifth embodiments, this shape is mainly exemplified) or discontinuous. It may be a shape having a plurality of recesses (in the first embodiment, this shape is mainly exemplified).
  • the pants-type diaper can be applied to both adults and children.
  • a pants-type diaper will be described as an example.
  • the present invention can also be applied to an unfolded diaper as described in the fifth embodiment (so-called sheet-type diaper).
  • the absorbent article of the present invention is not limited to diapers, but can be applied to other general absorbent articles such as an absorbent pad.
  • the present invention can be applied to an absorbent pad or the like because of the structure of the absorbent body 13 and the top sheet 14, and has the same effects as a diaper. That is, the present invention is not limited to those exemplified in the present embodiment and other embodiments described later, but includes other absorbent articles belonging to the concept of the present invention.
  • FIG. 1 is a three-dimensional projection view showing an external appearance of a pants-type diaper to which the absorbent article according to the present embodiment is applied as viewed from the front side.
  • FIG. 2 is a development view of the pants-type diaper according to the present embodiment.
  • the pants-type diaper 10 includes a front body region 10F, a back body region 10R, and a crotch region 10C that connects the front body region 10F and the back body region 10R.
  • the waist periphery opening part 10W which surrounds a wearer's waist part with the front body area
  • a pair of left and right leg openings 10L that surround one of the regions from the base of the wearer's legs to the thigh are formed by the lower end of the front body region 10F and the back body region 10R and the crotch region 10C. Yes.
  • the front body region 10F is located on the abdomen side of the wearer, and the rear body region 10R is located on the back side of the wearer.
  • the crotch region 10 ⁇ / b> C covers the wearer's crotch, and the leg of the wearer is passed through the pair of left and right leg openings 10 ⁇ / b> L. Therefore, the leg periphery opening 10L is located at any position around the thigh from the base of the wearer's legs.
  • the pants-type diaper 10 is provided with a cover sheet 11 so as to cover the front body region 10F and the back body region 10R together with the crotch region 10C, and the left and right side edges of the cover sheet 11 are joined together to form a closing portion 10J. is doing.
  • a waist opening 10W and a pair of left and right leg openings 10L are defined.
  • an imaginary line P is assumed that extends through the crotch region 10C from the abdominal side to the back side at or near the center in the width direction of the underpants type diaper 10.
  • the virtual line P extends, for example, along the abdominal side surface of the diaper 10 and in the vertical direction when the waist side when the pant-type diaper 10 is worn is up and the crotch side is down. It extends in the vertical direction along the surface of the pants-type diaper 10 on the back side via the region 10C.
  • the underpants type diaper 10 in the present embodiment is such that the absorber 13 is elongated along the imaginary line P, and the longitudinal direction thereof is parallel to the imaginary line P.
  • a direction orthogonal to the virtual line P is defined as a width direction.
  • the ratio between the longitudinal direction and the width direction of the pants-type diaper is appropriately changed according to the wearer's body shape.
  • a pair of notch portions 11 ⁇ / b> A each having a semicircular arc shape that is a leg-periphery opening 10 ⁇ / b> L in FIG. 1 is formed at the center of the left and right side edges in the longitudinal direction of the cover sheet 11. .
  • an absorbent body 13 having an elongated rectangular shape is disposed so as to cover the front body region 10F, the crotch region 10C, and the back body region 10R. The absorber 13 is joined to the back sheet 12.
  • the back sheet 12 bonded to the absorber 13 is a direction in which the longitudinal direction is substantially parallel to the imaginary line P, and the cover sheet 11 is positioned so that the imaginary line P passes through the center in the width direction or the vicinity thereof. Bonded on top.
  • a liquid-permeable top sheet 14 that touches the wearer's skin is joined on the surface of the absorbent body 13.
  • a rubber thread 15 for forming a leg gather and a rubber thread 17 for forming a waist gather are joined to the cover sheet 11 in an extended state.
  • a pair of side sheets 18 forming a three-dimensional gather are provided on the left and right side edges of the top sheet 14.
  • the pair of side sheets 18 are liquid-impermeable members that stand along both side edges of the absorbent body 13 when worn and prevent side leakage of urine excreted by the wearer.
  • Each of the side sheets 18 is provided with a thread rubber 19 as a three-dimensional gather elastic material in a form in which the inner edge of the side sheet 18 is folded back to the absorbent body 13 side and is worn when the thread rubber 19 contracts. Stands up toward the person's skin contact direction.
  • the three-dimensional gather can employ a known configuration used in conventional diapers. For example, it can be formed by sandwiching and fixing a stretched three-dimensional gather elastic material between the layers of the water repellent sheet.
  • FIG. 3 is a three-dimensional projection view showing an exploded state in which the pant diaper 10 according to the present embodiment is broken and developed.
  • the laminated structure of the pants-type diaper 10 will be described with reference to FIG.
  • the pant-type diaper 10 has a cover sheet 11, a liquid-impermeable back sheet 12, an absorber 13, and a top sheet 14 that are sequentially stacked and joined in order from the outside.
  • the cover sheet 11 formed with a pair of notches 11A is formed of an inner cover sheet 11B on the skin side of the wearer and an outer cover sheet 11C joined to the outside of the inner cover sheet 11B.
  • the inner cover sheet 11B is joined to the back sheet 12.
  • the absorber 13 is disposed between the back sheet 12 and the top sheet 14, and the top sheet 14 is joined to the back sheet 12 through the absorber 13.
  • the outer cover sheet 11C is formed of a thin non-woven fabric in order to obtain a good touch, and the rubber thread 15 and 17 are joined in an extended state between the inner cover sheet 11B and the outer cover sheet 11C.
  • a pair of side sheets 18 forming a three-dimensional gather are provided on the left and right side edges of the top sheet 14.
  • the pair of side sheets 18 is a member that rises along both side edges of the absorbent body 13 when worn and prevents side leakage of urine excreted by the wearer.
  • Each of the side sheets 18 is provided with a rubber thread 19 as a three-dimensional gather stretchable material in a form in which the inner edge of the side sheet 18 is folded and gripped toward the absorber 13 side.
  • the back sheet 12, the absorber 13 and the top sheet 14 can be bonded to underwear or the like to form an absorbent article that absorbs liquid.
  • FIG. 4 is a cross-sectional view of the pant-type diaper 10 according to the present embodiment cut along the IV-IV cross-sectional line of FIG.
  • the cross-sectional shape of the absorber 13 of the pants-type diaper 10 will be described with reference to FIG.
  • the absorbent body 13 and the top sheet 14 are compressed by intermittent embossing, and a plurality of concave portions having a quadrilateral shape are formed integrally.
  • the plurality of recesses are arranged at intervals to form a thinned portion 401 that functions as a groove through which a liquid such as urine passes.
  • the thinned portion 401 has a depth from the surface on the top sheet 14 side of the absorbent body 13 toward the surface on the back sheet 12 side.
  • a portion surrounded by the thinned portion 401 formed on the surface of the absorbent body 13 is referred to as a shape change suppressing portion 402.
  • the details of the shape loss suppressing unit 402 will be described later.
  • the ridge line at the top of the thinned portion 401 indicates a contour line 403 of a portion that is not the thinned portion 401 and that is visible when the cross section is cut.
  • FIG. 5 is a top view of the top sheet 14 side of the absorbent body 13 of the pant-type diaper 10 according to this embodiment.
  • the surface shape of the absorber 13 is demonstrated using FIG.
  • the absorber 13 is mainly composed of pulp and SAP.
  • the absorber 13 has an elongated rectangular shape so as to cover the front body region 10F, the crotch region 10C, and the back body region 10R.
  • the absorbent body 13 is divided into three parts in the longitudinal direction into a front body part M1, a crotch part M2, and a back body part M3.
  • the crotch portion M2 may be formed with a pair of notches that form an arc shape in accordance with the pair of left and right leg openings 10L that surround the thick crotch portions of the wearer's legs.
  • the direction from the crotch part M2 to the front body part M1 is the front (upward) direction
  • the direction from the crotch part M2 to the back body part M3 is the back (downward) direction
  • the direction is the left-right direction (width direction).
  • the absorber 13 is a rectangle, the shape of the absorber in this invention is not restricted to this.
  • the shape of the absorber has rounded corners at the front and rear (up and down) ends, an elliptical shape extending in the front and rear (up and down), a circular shape, and the length of the front and rear (up and down) left and right are about the same Includes various shapes such as rectangular ones.
  • the absorber 13 is formed with a thinned portion 501 extending in an oblique lattice shape.
  • the thinned portion 501 extends discontinuously in an oblique lattice shape from one end to the other end of the thinned portion forming region N1.
  • the thinned portion 501 formed as a result of compression centered on the concave portion 502 of the absorber 13 is a case where the thinned portion 501 is continuous even if it is intermittent due to the interval and depth of the concave portion 502. Or a mixture of both.
  • the absorber 13 is wrapped with a core wrap (tissue) (not shown).
  • the core wrap is a hydrophilic thin sheet.
  • the absorber in the present invention may not be wrapped with the core wrap. The same applies to other embodiments described later.
  • the thinned portion 501 is formed in the thinned portion forming region N1 by a pattern in which a plurality of concave portions 502 are arranged at a predetermined interval.
  • the thinned portion 501 is from one upper side to the other lower side in the width direction (left-right direction) of the absorber 13 orthogonal to the direction (longitudinal direction) indicated by the phantom line P that is a direction parallel to the longitudinal direction of the absorber 13 (see FIG. 5, a plurality of first thinned portions (first patterns) 501a extending in a first direction inclined from the upper right side toward the lower left side toward the paper surface in FIG. 5, and one lower side from the other upper side (in FIG.
  • first thinned portions 501a are arranged in parallel with each other at a predetermined interval.
  • second thinned portions 501b are arranged in parallel with each other at a predetermined interval.
  • the plurality of thinned portions 501 may not be completely parallel to each other, and the intervals between them may not be constant.
  • the plurality of first thinned portions 501a are inclined at the same angle with respect to the virtual line P, and are arranged at predetermined intervals. That is, the first thinned portions 501a are arranged in parallel and at a predetermined interval.
  • the present invention is not limited to this, and the thinned portion is not constant, and the inclined angles of the thinned portions are different. Including things. The same applies to the second thinned portion 501b.
  • the absorber 13 is formed with a plurality of first thinned portions 501a and second thinned portions 501b, but the first thinned portion and the second thinned portion that extend in an oblique direction are formed.
  • the number of thinned portions is not limited as long as the thinned portion is formed. Although it is preferable that the two intersect, the present invention is not limited to this, and includes those in which the two do not intersect. Details of the operation of the thinned portion will be described later.
  • the absorber 13 has a thinned portion forming region N1 in the central region in the width direction, and has thinned portion non-formed regions N2 on both sides thereof. Both side edges in the width direction of the absorber 13 are thinned portion non-forming regions N2, and the thinned portion forming region N1 extends in a band shape from one end to the other end in the direction indicated by the phantom line P in the central region. ing.
  • FIG. 6 is a partial cross-sectional view of the pant-type diaper 10 according to this embodiment, taken along the line VI-VI in FIG.
  • the thinned portion 501 is a member having a predetermined thinned portion pattern formed from the surface of the absorbent body 13 on the top sheet 14 side, and the concave portion 502 is formed by compressing the absorbent body 13 with heat in some cases. It is formed.
  • the width and depth of each thinned portion 501 may be uniform or may vary depending on the distance between adjacent thinned portions, the position of the thinned portion, and the like.
  • the side wall portion of the recess 502 provided in the thinned portion 501 may be V-shaped obliquely inclined from the absorber surface, or extends substantially vertically. Also good.
  • the ridge line at the top of the recess 502 indicates the outline 601 of the portion that is not the recess 502, which is visible when cut in a cross section.
  • the thinned portion concave portion 502 and possibly the vicinity thereof are compressed as compared with other portions, and the absorber The density of 13 is increased.
  • the compression ratio of the most compressed thinned portion recess 502 is preferably about 4 to 7 times, but includes other compression ratio ranges depending on the material of the absorber 13 and the liquid to be absorbed.
  • the absorber density of the compressed part is more than twice that of the non-compressed part.
  • the absorber density is mainly the density of the pulp.
  • the concave portion 502 of the thinned portion 501 in the absorbent body 13 is formed by compressing the absorbent body 13. Therefore, the concave portion 502 of the thinned portion 501 and, in some cases, the vicinity thereof, the absorbent body 13 is compressed and harder than other portions of the absorbent body 13.
  • the shape change suppressing portion 402 is difficult to be deformed. Therefore, even if a tensile force is generated in an oblique direction with respect to the longitudinal direction, the absorber 13 is more difficult to be wrinkled obliquely due to the rigidity of the concave portion 502, and the deformation preventing portion 402 is not easily deformed. The deformation with respect to the direction will be suppressed. Therefore, the absorber 13 is not greatly deformed and deformed by the longitudinal movement of the legs. Since the absorbent body 13 does not move, the fit between the crotch can be maintained, and body fluid leakage hardly occurs. Moreover, since it can also suppress that the absorber 13 cuts by deformation
  • the thinned portion forming region N1 extends from the front body portion M1 to the back body portion M3 of the absorber 13, but the present invention is not limited to this. That is, the thinned portion forming region N1 may be formed only in the crotch portion M2. Further, the thinned portion forming region N1 may be formed only in the front body portion M1, only in the back body portion M3, or may not be formed in the longitudinal end portion. Since the portion close to the waist portion is in close contact with the skin by waist gathers, the feeling of wear is improved by preventing the hard portion of the thinned portion 501 from touching the skin.
  • the pants-type diaper 10 has a configuration in which the top sheet 14 is laminated on the surface of the absorber 13 and forms a thinned portion 501 having a recess 502 by compressing from the surface of the top sheet 14. . That is, the top sheet 14 is fixed in close contact with the thinned portion 501. In this way, by compressing the top sheet 14 together, the top sheet 14 is also formed with the deformation preventing portion 402, and it is suppressed that the top sheet 14 is twisted or cut off with respect to movement during walking.
  • the top sheet 14 on the absorbent body 13 is compressed in the concave portion 502 and the vicinity thereof by this compression. Bites into the absorber 13 side and is integrated with the absorber 13.
  • FIG. 7 is an enlarged view showing a part of the thinned portion 501 on the upper surface of the absorber 13 according to the present embodiment (the thinned portion 501 of the absorber 13 surrounded by the broken line ellipse VII in FIG. 5).
  • the thinned portion 501 can be configured by arranging a plurality of concave portions 502 with an interval L1 (that is, discontinuously).
  • the concave portion 502 has, for example, a quadrilateral shape, and is formed by compressing the absorbent body 13 with an embossed shape having the same shape.
  • the interval L1 is about 2 mm.
  • the length L2 of the recess is about 2.4 mm.
  • the width L3 of the recess is about 2 mm.
  • L1, L2, and L3 are preferably in the ranges of 1 mm ⁇ L1 ⁇ 5 mm, 1 mm ⁇ L2 ⁇ 50 mm, and 1 mm ⁇ L3 ⁇ 5 mm, respectively.
  • the recessed part 502 is shown typically and the number and magnitude
  • the recesses 502 are arranged with a gap L1 between them, but the gap 701 between the adjacent recesses 502 is recessed more than the mold collapse suppression part 402 surrounded by the thinned part 501. That is, the absorber 13 in the gap 701 is pulled with the compression when the recess 502 is formed, and the recess 502 is recessed as compared with the deformation prevention portion 402. Therefore, although there is a difference in height between the concave portion 502 and the gap 701, the thinned portion 501 is lower than the non-compressed portion, and lower than the shape loss suppressing portion 402 as a whole.
  • the compression rate is preferably about 4 to 7 times in the concave portion 502, but is not limited to this range. Depending on the material of 13 and the liquid to be absorbed, other ranges are also included.
  • the thinned portion 501 can be configured by intermittent embossing. As a result, it is possible to suppress the kinking and deformation of the absorber due to the longitudinal movement of the legs. In addition, when the embossing of the thinned portion 501 is intermittent, the thinned portion 501 itself is also easily bent and fits the body more easily, and follows the movement of the body, thereby suppressing a sense of stiffness. Can do.
  • FIG. 8 is an explanatory view of the thinned portion 501 formed on the upper surface of the absorber 13 according to the present embodiment, and one lattice shape in the thinned portion forming region N1 surrounded by the broken line circle Q in FIG. It is a figure which expands and shows.
  • a thinned portion 501 is provided in each of four lattice lines AB, BC, CD, and DA that form an oblique lattice ABCDA by orthogonally intersecting at intersections A, B, C, and D.
  • Each thinned portion 501 has a configuration in which a plurality of concave portions 502 are arranged at intervals.
  • the concave portion 502 has a role of imparting an uneven shape to the absorber 13 and diffusing the liquid or the like on the absorber 13. Note that the lattice lines AB, BC, CD, and DA in FIG. 8 are schematically shown.
  • the concave portion 502 has a quadrilateral shape, and is formed by compressing the absorbent body 13 with an embossed shape of the same shape. Further, it is preferable that the interval between the plurality of recesses 502 is 1 mm to 5 mm, the length of the recesses 502 is 1 mm to 50 mm, and the width of the recesses 502 is 1 mm to 5 mm.
  • three concave portions 502 are intermittently arranged on the line segment AB.
  • the concave portion 502 located near the midpoint on the line segment AB is compressed most deeply, and the intersections A and B near the line segment AB are compressed shallower than the concave portion 502.
  • the number of the recesses 502 is not limited to three as in the present embodiment.
  • FIG. 9 is a cross-sectional view of the thinned portion 501 formed on the upper surface of the absorber 13 according to this embodiment, taken along the line IX-IX in FIG.
  • the thinned portion 501 is configured such that the concave portions 502 are intermittently arranged in a portion from the intersection point A to the intersection point B on the line segment AB.
  • the intersection region (intersection A and its vicinity) 901 of the grid lines AB and DA 901 and the intersection region (intersection B and its vicinity) 902 of the lattice lines AB and BC are compressed most shallowly, and the two adjacent intersection regions 901 and 902
  • the concave portion 502 of the intermediate region 903 located therebetween is compressed most deeply.
  • the lattice line AB is formed by a plurality of compressed regions having a depth.
  • the thinned portion 501 is compressed so that the depth from the surface of the absorbent body 13 on the surface sheet side is shallower than the deepest compressed portion of the thinned portion 501 in the intersecting region.
  • the thinned portion 501 shows an example in which the concave portion 502 is formed intermittently, but the present invention is not limited to this.
  • the recessed portions 502 may be continuously connected to form the thinned portion 501, and the depth of the recessed portion 502 may gradually decrease from the central portion of the intermediate region 903 toward the intersecting regions 901 and 902.
  • an interlayer junction compression portion 904 that is deeper than the depth of the recess 502 is intermittently formed at the bottom of the recess 502 where the depth of the thinned portion 501 is the deepest.
  • the absorber 13 and the back sheet 12 stacked on the absorber 13 can be brought into an integrated state by compression.
  • One interlayer junction compression portion 904 may be formed, or a plurality of interlayer junction compression portions 904 may be formed.
  • the ridge line at the top of the concave portion 502 shows a contour line 905 of a portion that is not the concave portion 502, which is visible when the cross section is cut.
  • the recesses 502 are usually arranged using an embossing technique to configure the lattice lines AB, BC, CD, and DA.
  • an oblique lattice ABCDA is formed.
  • the concave portion 502 is formed by rotating the forming roll in a direction orthogonal to the extending direction of the rotation shaft.
  • the extending direction of the rotation axis of the forming roll is orthogonal to the line segment CA, and the forming roll is rotated from the intersection C to the intersection A in parallel to the line segment CA (the arrow direction in FIG. 8).
  • the material on the surface of the absorber 13 is the intersection. A close to A can be prevented.
  • the absorber 13 is compressed to the back sheet 12, and in the intersection region 901, the material is not torn, so that the material of the absorber 13 in the vicinity of the intersection A is not torn and the flexibility of the absorber 13 is reduced.
  • the hardness of the surface of the absorber 13 can be reduced, the followability of the wearer can be improved, and the comfort and feel can be improved.
  • the shape of the thinned portion is not limited to the shape of the present embodiment, and the thinned portion is formed in a continuous line in the extending direction, or the width of the cross section perpendicular to the extending direction is widened in the intermediate region. And it can also be formed narrowly at the intersection region. Further, the thinned portion may be formed with a continuous line for a part thereof, and the remainder may be formed intermittently, or the cross-sectional area perpendicular to the extending direction of the thinned portion may be changed in its width and depth. You may change by the combination of.
  • FIG. 10 is an explanatory view of a thinned portion 1001 formed on the upper surface of the absorbent body 13 according to the second embodiment applicable to the pants-type diaper shown in FIG. 1, and is a broken-line circle in FIG. 5 of the first embodiment. It is a figure which expands and shows one lattice shape in the thin part formation area
  • the shape of the absorbent body 13 of the present embodiment is different from the shape of the absorbent body 13 of the first embodiment in that a continuous groove-shaped concave portion 1002 is formed in the lattice line AB.
  • the portion between bc forms a thinned portion 1001, which is a deeper recess than the portion between points Ab and cB of the recess 1002 located in the intersecting region.
  • the portions between the points Aa and dB of the concave portion 1002 located near the intersection point A and near the intersection point B are compressed most shallowly.
  • the portion between the points ab and cd of the recess 1002 adjacent between Aa and between the points dB is compressed relatively deeply.
  • a portion (intermediate region) between the points bc of the concave portion 1002 located at the central portion on the lattice line AB is compressed most deeply to form a thinned portion 1001.
  • the region between the points Ab and the region between the points cB is defined as belonging to the intersection region among the recesses 1002 formed continuously with the lattice line AB.
  • the region between the points Aa and the region dB, which are the regions, and the region between the points ab and the region between the points cd which are the outer regions are included. And the part between points bc becomes the thinned part 1001 in this embodiment.
  • FIG. 11 is a cross-sectional view of the absorber 13 according to the present embodiment taken along the line XI-XI in FIG.
  • the concave portions 1002 are continuously formed from the intersection point A to the intersection point B on the line segment AB
  • the central region (between the points Aa) of the intersection region of the lattice lines AB and DA is formed.
  • the portion of the recess 1002 located in the central region (between the points dB) 1102 of the intersecting region of 1101 and the grid lines AB and BC is compressed most shallowly.
  • the portion of the recess 1002 in the outer regions 1103 and 1104 (between the points ab and cd) of the intersecting region located between the two adjacent central regions 1101 and 1102 is relatively deeply compressed.
  • regions 1103 and 1104 is the thinned part 1001 compressed most deeply.
  • the lattice line AB is formed by a compressed region having a plurality of depths in stages.
  • the thinned portion 1001 is continuously formed with a uniform depth, but the present invention is not limited to this.
  • the thinned portions 1001 may be formed by intermittently arranging the recessed portions.
  • the stepped depth in the region between the points ab and the region between the points cd may be not only two steps but also three or more steps.
  • an interlayer junction compression portion 1106 deeper than the depth of the intermediate region 1105 is intermittently formed at the bottom of the intermediate region 1105 where the depth of the recess 1002 is deepest.
  • the interlayer bonding compression portion 1106 the absorber 13 and the back sheet 12 stacked on the absorber 13 can be brought into an integrated state by compression.
  • One or more interlayer junction compression portions 1106 may be formed.
  • the ridge line at the top of the recess 1002 shows a contour line 1107 of a portion that is not a thinned portion 1001 and is visible when cut in a cross section.
  • the depth of the recess 1002 gradually decreases from the intermediate region 1105 through the outer regions 1103 and 1104 of the intersecting region toward the central regions 1101 and 1102 of the intersecting region. Therefore, as in the first embodiment, it is possible to prevent the material on the surface of the absorber 13 from approaching the intersection A. As a result, in the outer region 1103 to the intermediate region 1105 (particularly the intermediate region 1105), the absorber 13 is compressed to the back sheet 12, and the central region 1101 does not get crushed. Therefore, the material of the absorber 13 near the intersection A is The flexibility of the absorber 13 can be improved without being broken. Furthermore, since the hardness of the surface of the absorber 13 can be reduced, the followability of the wearer can be improved, and the comfort and feel can be improved.
  • the absorber 13 of the first embodiment has a small difference in depth between the contour line 905 and the intermediate region 903.
  • the absorber 13 of this embodiment has a large difference in depth between the contour line 1107 and the outer regions 1103 and 1004, the absorber 13 is easily bent along the recess 1002. Thereby, in this embodiment, the suppleness of the absorber 13 can be improved more than Embodiment 1.
  • FIG. 12 is an explanatory diagram of the thinned portion 1201 formed on the upper surface of the absorber 13 according to the modification of the second embodiment, and the thinned portion surrounded by the broken line circle Q in FIG. 5 of the first embodiment. It is a figure which expands and shows one lattice shape in the formation area N1.
  • the shape of the absorber 13 of the present embodiment is different from the shape of the absorber 13 of the second embodiment in that a continuous groove-shaped recess 1002 is formed in the lattice line AB.
  • the concave portion 1202 that is the most deeply recessed is intermittently formed at two locations.
  • the vicinity of the intersection A (between the points Aa) and the vicinity of the intersection B (between the points fB), that is, the central region of the intersection region is compressed most shallowly.
  • the compression is relatively deeper than the central region.
  • the concave portions 1202 between the points bc and between the points de located on both sides of the midpoint between the points af on the grid line AB are further deeply compressed. That is, the thinned portion 1201 of the present embodiment is provided with the concave portion 1202 compressed most deeply intermittently.
  • FIG. 13 is a cross-sectional view of the absorbent body 13 according to the present embodiment taken along the line XIII-XIII in FIG.
  • the point Aa located in the central region 1301 of the intersection region of the lattice lines AB and DA and the central region 1302 of the intersection region of the lattice lines AB and BC.
  • the portion between the points fB are compressed most shallowly, and the portion between the points ab and between the points ef in the outer regions 1303 and 1305 of the intersection region located between the central regions 1301 and 1302 of the two adjacent intersection regions It is compressed relatively deeply.
  • the portion 1306 between the point bc adjacent to the outer region 1304 and the portion 1307 between the points de adjacent to the outer region 1305 are deepest. While being compressed, two concave portions 1202 are formed, and a portion 1304 between the points cd between the concave portions 1202 is relatively shallower than the concave portion 1202.
  • the lattice line AB is compressed to a plurality of depths in stages, and a plurality of deepest compressed regions are formed.
  • the groove shape is continuous on the grid line is shown, but the present invention is not limited to this.
  • only the deepest recess 1202 may be intermittently arranged to form the thinned portion 1201.
  • the stepped depth may be not only two steps but also three or more steps. Further, there may be three or more deepest recess 1202 regions.
  • interlayer junction compression portions 1308 and 1309 deeper than the depth of the recess 1202 are intermittently formed at the bottom of the recess 1202.
  • the absorber 13 and the back sheet 12 stacked on the absorber 13 can be brought into an integrated state by compression.
  • one or more interlayer junction compression portions 1308 and 1309 may be formed.
  • the ridge line at the top of the concave portion 1202 indicates a contour line 1310 of a portion that is not a thinned portion 1201 and is visible when cut in a cross section.
  • the absorber 13 of the present embodiment has a stage in which the depths of the continuous recesses (grooves) on the lattice line progress from the intermediate region through the outer regions 1303 and 1305 of the intersecting region toward the central regions 1301 and 1302 of the intersecting region. Therefore, the material on the surface of the absorber 13 can be prevented from approaching the intersection A as in the first and second embodiments.
  • the absorber 13 is compressed to the back sheet 12, while the central region 1301 does not become crumpled.
  • the suppleness of the absorber 13 can be improved without breaking the material 13. Furthermore, since the hardness of the surface of the absorber 13 can be reduced, the followability of the wearer can be improved, and the comfort and feel can be improved.
  • the absorber 13 of this embodiment forms the deepest recessed part 1202 in the thinned portion, the thinned portion is easily bent so that the flexibility of the absorber 13 can be further improved. .
  • the absorbent body of the present invention may be wrapped with a hydrophilic sheet (core wrap or the like) and compressed with the hydrophilic sheet to form a recess. Moreover, you may compress a absorber, a hydrophilic sheet
  • the shape of the recess is not limited to a four-sided shape, and various shapes may be used. For example, a circle, an ellipse, a square, a triangle, etc. In any of these shapes, it is sufficient that the thinned portion can be formed on the surface of the absorber.
  • the numerical values such as the width and depth of each recess are measured with reference to the vicinity of the center where the width and depth of each recess are near the maximum value.
  • each recess In principle, values such as the width and depth of each recess are measured based on the vicinity of the center of each recess, but in the case where the shape of each recess is complicated, Other portions of the recess may be used as a measurement standard for numerical values such as width and depth.
  • the present invention improves the utilization efficiency of the absorber and reduces the cost by improving the diffusibility of the liquid on the surface of the absorber due to the oblique lattice shape.
  • the form of the absorber 13 of the first to third embodiments of the present invention can be combined with each other.
  • FIGS. 14-21 Third embodiment of absorbent article
  • the absorbent article which concerns on 3rd Embodiment of this invention is demonstrated in detail, referring FIGS. 14-21.
  • the third embodiment of the present invention can also be applied to the pants-type diaper shown in FIG. 1 of the first embodiment, and in FIGS. 14 to 21, the parts configured similarly to the first or second embodiment.
  • the same reference numerals are assigned to corresponding parts.
  • FIG. 14 is a plan view of the pants-type diaper according to the present embodiment as viewed from the skin contact surface side, and corresponds to a state in which the diaper shown in FIG. 1 is developed.
  • FIG. 15 is a sectional view taken along line XV-XV in FIG. 14, and
  • FIG. 16 is an exploded perspective view of the pant-type diaper shown in FIG.
  • FIG. 17 is a partial top view of the portion where the absorber 3013 and the top sheet 14 of the present embodiment are located as seen from the top sheet 14 side, and
  • FIG. 18 shows an oblique lattice-like embossed pattern portion in FIG. It is a typical partial top view.
  • the absorber 3013 of this embodiment is basically composed of the same material as that of the first and second embodiments.
  • the absorber 3013 has an elongated shape so as to cover the front body, the crotch, and the back body.
  • the crotch portion M2 has a pair of arcuate shapes in accordance with the pair of left and right leg openings 10L that surround the thigh portions of both legs.
  • the notch 3013a is formed. Note that the notch 3013a may not be formed according to the size of the absorber 3013.
  • the absorber 3013 of this embodiment is an hourglass type
  • the shape of the absorber of this invention is not restricted to this.
  • the front body part and the back body part are the front and back (up and down) direction, and the direction orthogonal to it is the left and right direction, for example, the corners of the front and back (up and down) ends are rounded off, the ellipse extending in the front and back (up and down)
  • Various shapes are included, such as a rectangular shape, a circular shape, and a rectangular shape having the same length in the front and rear (up and down) left and right. This is the same even when a notch is provided in the first and second embodiments described above.
  • the diaper 10 is the thinning part formation area
  • region N1 embossing pattern formation area
  • an emboss pattern that forms an oblique grid pattern as a whole is formed by the arrangement of the plurality of concave portions 3021 and 3023 by compression.
  • a recess 3023 (hereinafter also referred to as “first recess” or “short recess”) located at the intersection of the lattice and a recess 3021 (a “thin” defined in the present invention) between these recesses 3023.
  • It has a shape of a continuous long groove, and is formed with “second concave portion” or “long concave portion” in this embodiment. That is, a plurality of compressed rows 3022 in which concave portions 3021 and concave portions 3023 are alternately arranged are formed, and a lattice-like emboss pattern extending obliquely is formed by the arrangement of the plurality of compressed rows 3022.
  • the recess 3021 is formed by compressing both the core wrap and the absorber 3013 from the surface of the top sheet 14.
  • the long concave portion 3021 in the present embodiment is inclined with respect to a virtual line P along the central axis of the wearer's body when the diaper is worn.
  • the long concave portion 3021 is a right angle long concave portion 3021a inclined in the right direction in the drawing, which is the first direction with respect to the virtual line P, at a predetermined angle ⁇ , and the second direction at a predetermined angle ⁇ .
  • a leftward long concave portion 3021b inclined in the middle left direction is provided.
  • the long concave portions 3021 and the short concave portions 3023 that are inclined in the same direction are arranged so as to form rows at predetermined intervals L1 alternately.
  • a row in which the rightward long concave portions 3021a are arranged is referred to as a first compression row 3022a
  • a row in which the leftward long concave portions 3021b are arranged is referred to as a second compression row 3022b.
  • These compression rows 3022 are linearly inclined with respect to the imaginary line P at the same angle as the inclination angle of the long recess 3021.
  • the plurality of first compression rows 3022a are arranged in parallel with a space S1 therebetween.
  • the plurality of second compression rows 3022b are arranged in parallel with an interval S2 therebetween.
  • the intervals S1 and S2 of each row 3022 and the interval L1 of the arrangement of the recesses 3021 and 3023 are determined so that the short recess 3023 is positioned at the intersection of the first compression row 3022a and the second compression row 3022b. Yes.
  • the intervals S1 and S2 are the same value, but they may be different values.
  • one square of the lattice has the following configuration.
  • Four sides are formed by each long recess 3021, and four vertices are formed by short recesses 3023.
  • the length of the long concave portion 21 is shorter than the distances S1 and S2.
  • the right-side long concave portion 3021 a and the left-side long concave portion 3021 b do not overlap at the lattice point.
  • the non-overlapping region is defined as a crossing region, and the crossing region is an outer side that separates the central region where the short recess 3023 is formed from the short recess 3023 and the long recess 3021. And a region.
  • the embossed pattern is not formed on both ends of the absorber 3013. Accordingly, the absorbent body 3013 is such that the compression part non-formation area (emboss pattern non-formation area) N2 is located on both sides of the compression part formation area (emboss pattern formation area) N1. This is to prevent body fluid from leaking from the leg opening 10L through the emboss pattern.
  • FIG. 19 is an enlarged schematic view of the vicinity of the intersection of the compression rows in FIG. 18, and FIG. 20 is a view showing a cross section taken along line XX-XX in FIG.
  • FIG. 21 is a view showing a cross section taken along line XXI-XXI in FIG.
  • a region indicated by a broken line surrounding the periphery of the long recess 3021 and the short recess 3023 is a semi-compression region 3024. That is, the top sheet 14 and the absorber 3013 around the long recess 3021 and the short recess 3023 are compressed by strongly directly compressing the top sheet 14 and the absorber 3013 to form the long recess 3021 and the short recess 3023. By being pulled, it is compressed indirectly. In this way, a weakly compressed region around the recess, which is a region strongly compressed by the embossing mold, is referred to as a semi-compressed region 3024.
  • the region where the absorber 3013 and the like are compressed that is, the compressed region becomes the concave portions 3021 and 3023 and the semi-compressed region 3024 around them.
  • etc. Are not compressed but become an uncompressed area
  • the main absorption region 3025 that is an uncompressed region and the intersection vicinity portion 3026 have the same thickness (height) of the absorber 3013 and the like.
  • the absorber 3013 and the like are compressed, and the concave portion 3021 and the short concave portion 3023 are recessed compared to the non-compressed region.
  • the semi-compressed region 3024 is a portion where the non-compressed region and each of the concave portions 3021 and 3023 are connected and the thickness of the absorber 3013 gradually changes.
  • the long concave portion 3021 has a long concave portion first portion 3211 that forms its outer shape, and is disposed intermittently within the long concave portion first portion 3211, and the long concave portion first portion 3211. It is comprised from the circular long recessed part 2nd part 3212 dented more deeply.
  • the long concave portion first portion 3211 is an elongated one having a length U and a width V that are shorter than the lengths S1 and S2 of the sides of the lattice. Specifically, it has a shape in which both ends are arcs.
  • circular long concave second portions 3212 are alternately arranged at predetermined intervals in the long concave first portion 3211 with respect to the longitudinal central axis.
  • the long concave portion second portion 3212 is recessed deeper in the thickness direction of the absorber than the long concave portion first portion 3211.
  • the long concave second portion 3212 is located at the deepest point, and the long concave first portion 3211 is located slightly above the bottom of the long concave second portion 3212.
  • the difference is obtained by subtracting Q2 from Q1.
  • Q3 is about 3.5 to 15% of the depth Q1 to the bottom of the long concave second portion 3212.
  • the depth Q1 to the bottom of the long concave second portion 3212 is about 42.5% to 97.5% of the thickness Q4. is there.
  • the depth Q2 to the bottom of the long concave first portion 3211 is about 37.5% to 95.0% of the thickness Q4.
  • the long recess 3021 in the present embodiment is formed by compressing the absorber 3013 to a considerably deep depth. And it has the shape which has the depth of two steps.
  • the short recess 3023 located at the intersection of the lattices is formed by compressing the absorber 3013 and the like by the same depth Q2 as the long recess first portion 3211.
  • the embossing for forming the long recess 3021 and the short recess 3023 compresses the top sheet 14 and the absorber 3013 together from the surface of the top sheet 14 with an adhesive interposed between the top sheet 14 and the absorber 3013. It is.
  • the long concave portion 3021 and the short concave portion 3023 are formed by compressing the top sheet 14 and the absorber 3013 together from the surface of the top sheet 14 with a predetermined mold formed on the embossing roll.
  • the long recessed part 2nd part 3212 is a small circle, The area is small. Therefore, in the pressing by the embossing roll, the pressure concentrates on the long concave portion second portion 3212, and the absorber 13 and the top sheet 14 are strongly compressed. During the compression, the pulp fibers of the absorbent body 3013 and the fibers of the top sheet 14 are firmly entangled and joined together. Next, the same pressing force is also applied to the long concave portion first portion 3211 during compression, but the pressure is not concentrated as much as the long concave portion second portion 3212 due to the large area.
  • the bonding between the absorber 3013 and the top sheet 14 is slightly weaker than the long concave second portion 3212, but is sufficient to form the concave shape.
  • the absorber 3013 is strongly compressed in the second long concave portion 3212, and the shape of the long concave portion 3021 is maintained by firmly joining the absorber 3013 and the top sheet 14. For example, even when the wearer sits down and pressure due to the weight of the wearer is applied to the surface of the absorber 3013, the long concave portion 21 does not sag and maintains its shape.
  • a long concave portion 3021 by applying a strong compressive force, instead of a two-stage structure of the long concave portion first portion 3211 and the long concave portion second portion 3212. That is, in the embossing, a surface having a flat surface is used instead of using a mold in which a round protrusion corresponding to the long recess second portion 3212 is further protruded inside the substantially elliptical protrusion corresponding to the long recess first portion 3211.
  • the embossing mold is provided with a protrusion corresponding to the second long concave portion 3212 and partially compressed strongly, thereby creating a place where the top sheet 14 and the absorber 3013 are firmly joined. This prevents the occurrence of defects such as the top sheet 14 being torn during manufacture.
  • the compression row may be formed by a configuration in which dot-like recesses are arranged intermittently without using such a two-stage compression structure.
  • the short recess 3023 provided at the intersection of the lattice is formed by the embossing roll pressing the absorber 3013 as much as the long recess first portion 3211 and compressing it.
  • the strength of the pressing is such a strength that the top sheet 14 and the absorber 3013 can be integrally joined without breaking the top sheet 14.
  • the bottom surface portion of the long recess second portion 3212 is a high-density portion 3013A having the highest density of the absorber.
  • the uncompressed regions such as the main absorption region 3025 and the intersection vicinity portion 3026 are low density portions 3013D having the lowest density of the absorber.
  • the bottom portion of the long concave portion first portion 3211 and the bottom portion of the short concave portion 3023 are medium density portions 3013B.
  • the semi-compressed region 3024 becomes a density changing portion 3013C in which the density gradually decreases toward the non-compressed region.
  • the absorber 3013 is mainly made of SAP and pulp, and the density mainly involves the pulp fiber density. Therefore, the high-density portion 3013A is in a state where the pulp is compressed and there are few gaps between the pulps, while the low-density portion 3013D is in a state where there are many gaps between the pulps compared to the high-density portion 3013A.
  • the recesses 3021 and 3023 are formed by compression-bonding the top sheet 14 which is a synthetic fiber and the pulp absorbent body 3013 together, the bottom surfaces of the recesses 3021 and 3023 are film-like. It seems to absorb little liquid. Therefore, the body fluid discharged onto the recesses 3021 and 3023 is absorbed by the density changing unit 3013C that is the side wall of the recesses 3021 and 3023, and is sent to the main absorption region 3025.
  • the concave portions 3021 and 3023 are intermittently arranged and formed instead of continuous concave portions.
  • the short concave portion 23 is provided at the intersection of the diagonal lattice, and the next long concave portion 3021 is located away from the intersection. The reason for providing the interval L1 in this way will be described below.
  • the compression row 3022 of the diagonal lattice is formed by pressing an embossing roll formed on the surface with a mold corresponding to the concave portions 3021 and 3023 while rotating it.
  • the embossing roll rotates and travels in the direction of arrow W, all the long concave portions 3021 aligned in the direction orthogonal to the traveling direction W of the embossing roll (direction parallel to the rotation axis) are all simultaneously. It will be pressed.
  • the size of the embossing roll is determined so that the circumference of the embossing roll corresponds to the length of the absorbent body 3013 in the longitudinal direction, but the embossing roll is not limited to this.
  • the advancing direction W of an embossing roll is a direction orthogonal to the rotating shaft of an embossing roll, and is parallel to the direction used as the previous virtual line P when the diaper 10 is completed.
  • the traveling direction W of the embossing roll is also parallel to the virtual line P, so that the diagonal lattice shape is inclined with respect to the virtual line P. Can be formed.
  • the right long concave portion 3021a is inclined in the right direction with respect to the traveling direction W, and the left long concave portion 3021b is inclined in the left direction. For this reason, as the embossing roll advances in the traveling direction W, the distance between the right-side long concave portion 3021a and the left-side long concave portion 3021b that are adjacent to the intersecting portion 3023 decreases.
  • the top sheet 14 is drawn into the recesses 3021 and 3023 when the embossing rolls that form the recesses 3021 and 3023 are pressed.
  • the right-side long concave portion 3021 a and the left-side long concave portion 3021 b are disposed adjacent to each other, and thus the top sheet 14 is simultaneously pulled in from the left and right when forming these. That is, in FIG. 18, the pulling force indicated by the arrow A is applied to the left and right simultaneously, and the top sheet 14 is pulled.
  • the margin for the pull of the pull-in force A of the top sheet 14 decreases, and the top sheet 14 becomes tightly stretched.
  • the grid faces rightward in the vicinity of the lattice corner.
  • the long recess 3021a and the left-facing long recess 3021b are arranged very close to each other.
  • the absorber 3013 itself has a high density and is in a hard state, and the absorber 3013 is in a state where the top sheet 14 is strongly stretched by the pulling force of the adjacent left and right long concave portions 3021a and 3021b. It will be in contact with.
  • the SAP in the absorbent body 3013 hits the top sheet 14 and has a rough hand. This is not preferable because it is irritating to the wearer's skin.
  • the intersection vicinity portion 3026 where the distance between the adjacent long concave portions 3021 is less than the predetermined distance T is not compressed, and the top sheet 14 is not placed in a tight tension state. That is, the absorber 3013 compression and the bonding between the absorber 3013 and the top sheet 14 are stopped to the extent that the top sheet 14 in the main absorbent region 3025 can be maintained with a margin. Thereby, it is suppressed that the rough feel and the corner
  • the shortest distance between the right-pointing long concave portion 3021a and the left-side long concave portion 3021b is T, and the long concave portion 3021 is formed only in a portion where the distance between the two is T or more. Yes. Therefore, the top sheet 14 is fixed in a soft state, and a hard hand can be avoided.
  • the distance T is shown in a direction perpendicular to the traveling direction W. However, in the direction parallel to the traveling direction W, there is a problem that the corner portion becomes hard. It is preferable to form each long recessed part 3021 apart.
  • the lengths of the rightward long concave portion 3021a and the leftward long concave portion 3021b are made equal and the formation interval L1 is also made equal, the length parallel to the traveling direction W is similarly separated by a distance T or more. A recess 3021 is formed.
  • the distance between adjacent concave portions is T or more in the direction parallel to the diagonal of the quadrilateral (mass) defined by the first compression row 3022a and the second compression row 3022b.
  • the arrangement interval of the long concave portions 3021 is determined.
  • the pull-in force A acts strongly in the direction orthogonal to the traveling direction W of the embossing roll, so that the diagonal line parallel to the traveling direction W of the embossing roll is adjacent to the concave portion. Even if the distance between them is slightly shorter than T, it can be said that the influence is small.
  • this T is about 7 mm when the thickness of the absorber is 8 mm and the depth Q2 of the first recess is 6 mm.
  • This also varies depending on the relationship between the amount of SAP and the amount of pulp fibers in the absorber 3013 and the thickness of the top sheet 14.
  • An important point in the present invention is that when an emboss pattern having an oblique component such as an oblique lattice is used, an emboss pattern is not formed in a portion where the interval between adjacent recesses becomes narrow.
  • the top sheet 14 is not pulled strongly.
  • the compression row 3022 may not be identified as a row, and the grid may not be recognized.
  • interval between the long recessed parts 3021 is too wide, it will become difficult to exhibit the effect
  • a concave portion 3023 is provided at the intersection that does not affect the tension of the top sheet 14 to enhance the recognizability of the lattice and further improve the visual effect of the embossed pattern.
  • the absorber 3013 follows the movement of the body without making the corners of the lattice mass stiff, and is easily bent.
  • the shortest distance between the adjacent recesses 3021 is prevented from being less than T.
  • the embossed pattern in which the concave portions 3021 are arranged at a distance T or more, that is, the vicinity 3026 of the lattice intersection is an embossed pattern that is not embossed, thereby preventing the skin contact surface from becoming hard.
  • the corners of the lattice are in a soft state similar to the main absorption region 3025, even if an embossed pattern in an oblique lattice shape is used, the corners of the lattice mass do not have a hard and pointed touch, and are soft to the wearer. Can give it a soft touch.
  • the intersection of the lattice (the apex of the square) is clarified, and the aesthetics and the design are improved.
  • the compression row 3022 extending obliquely is prevented from being mistaken as a wrinkle due to a manufacturing defect, a concave portion arranged irregularly, or the like.
  • the embossing is performed using an embossing roll.
  • the embossing is not limited to this method, and embossing is performed in units of diaper size by a plate-like embossing plate that matches the size of the diaper. What you push may be used.
  • the embossing pattern of the present embodiment is such that the right-side long concave portion 3021 a and the short concave portions 3023 positioned in the longitudinal direction of the right-side long concave portion 3021 a are spaced apart from each other by the first compression row. 3022a is formed. Similarly, the left-facing long concave portion 3021b and the short concave portion 3023 form the second compressed row 3022b with a space L1 therebetween.
  • These first compressed rows 3022a are arranged in parallel in a plurality of intervals S1
  • the second compressed columns 3022b are arranged in parallel in a plurality of intervals S2.
  • the first compression row 3022a and the second compression row 3022b form an emboss pattern that forms an oblique lattice pattern as viewed in the distance, as shown in FIG.
  • the lengths S1 and S2 of one side of the lattice in the present embodiment are equal and 27.0 mm.
  • the interval between the lattices is preferably 13.0 mm or more and 54.0 mm or less.
  • the length U in the longitudinal direction of the long recess 3021 is 19.0 mm, and the length U is preferably 55% to 85% of the lengths S1 and S2 of one side of the lattice.
  • the width V of the long recess 3021 is 3.0 mm.
  • the width V is preferably 2.0 mm or greater and 4.0 mm or less.
  • the width V1 of the short recess 3023 is the same as or narrower than the width V of the long recess 21.
  • the width V1 in this embodiment is 2.0 mm.
  • the width V1 is preferably 1.0 mm or greater and 4.0 mm or less.
  • the interval L1 between the recesses 3021 and 3023 is 4.4 mm.
  • the interval L1 is preferably 2.0 mm or greater and 6.0 mm or less.
  • the thickness of the absorber 3013 and the top sheet 14 before embossing is 8.0 mm
  • the depth of the deepest portion of the long recess 3021 is shown in FIG. Q1 is 7.8 mm.
  • the depth Q2 of the next deepest portion is 7.5 mm.
  • the thickness Q4 of the non-compressed region is 8.0 mm.
  • the thickness including the absorber 3013 and the top sheet 14 before embossing is preferably 5.0 mm to 20.0 mm.
  • the maximum depth Q1 of the portion compressed by the recess 3021 is preferably 3.0 mm to 8.0 mm.
  • the difference Q3 from the next deepest portion is preferably 0.1 mm to 0.5 mm.
  • the thickness (height) Q4 of the uncompressed region is preferably 5.0 mm to 20.0 mm.
  • the thinned portion can be maintained even when weight is added, and the skin touch surface of the diaper crotch can be softly touched. Can be maintained. Therefore, the slanted grid-like embossed pattern can suppress deformation such as diaper swaying with respect to various movements of the legs, and the touch can be made soft to suppress irritation to the skin as much as possible.
  • the outer shape of the long concave portion 3021 is determined by the elongated substantially elliptical long concave first portion 3211.
  • the present invention is not limited to this, and an oblique grid-like compressed row is used.
  • a plurality of dots or parallelogram-shaped concave portions may be intermittently arranged.
  • the same effect can be obtained by arranging the plurality of dots as described above. Even in this case, the recesses are arranged so that the distance between adjacent recesses in the direction parallel to the diagonal of the lattice mass is T or more.
  • one side of the mass may be formed by two or more long recesses 3021 whose length in the longitudinal direction is shortened instead of one long recess 3021.
  • positioning of the long recessed part 2nd part 3212 in the long recessed part 1st part 3211 is distributed to the width direction outer side so that it may become alternate, this invention is not limited to this, The structure arranged in a line in the center, etc. It can be anything.
  • the shape of the second long concave portion 3212 is not limited to the shape shown in the present embodiment, and may take various shapes such as a quadrangle, an ellipse, and a triangle.
  • the short concave portion has a star shape with four vertices, but the present invention is not limited to this and may be a quadrilateral, a circle, or the like. That is, any shape may be used as long as it is an appropriate shape for recognizing the apex (corner) of the grid cell.
  • FIGS. 22 to 29 the parts configured in the same manner as the first to third embodiments.
  • the same reference numerals are assigned to corresponding parts.
  • FIG. 22 is a plan view of the pant diaper according to the present embodiment as viewed from the skin contact surface side, and corresponds to a state in which the diaper shown in FIG. 1 is developed.
  • FIG. 23 is a sectional view taken along line XXIII-XXIII in FIG. 22, and
  • FIG. 24 is an exploded perspective view of the pant-type diaper shown in FIG.
  • FIG. 25 is a partial top view of the portion where the absorber 4013 and the top sheet 14 of the present embodiment are located as seen from the top sheet 14 side, and FIG. 26 shows an oblique grid-like embossed pattern portion in FIG. It is a typical partial top view.
  • the absorber 4013 of this embodiment is also basically composed of the same material as that of the first and second embodiments.
  • the shape of the absorbent body 4013 is the same as that of the absorbent body 3013 of the third embodiment.
  • the crotch part M2 has a crotch of both legs.
  • a pair of notches 4013a having an arc shape is formed in accordance with the pair of left and right leg openings 10L surrounding the portion.
  • the pant-type diaper 10 is a compressed portion forming region (embossed pattern forming region) subjected to compression by regular embossing from the surface of the top sheet 14 toward the absorber 4013. N1.
  • a plurality of concave portions 4021 are formed by compression, and a plurality of compressed rows 4022 that form an oblique lattice-like pattern in the distance are formed by the arrangement of the concave portions.
  • the recess 4021 in the present embodiment is inclined with respect to an imaginary line P along the central axis of the wearer's body when the diaper is worn.
  • the concave portion 4021 is in the second direction at a predetermined angle ⁇ with respect to the imaginary line P and a long groove-like right-side concave portion 4021a inclined in the right direction in the drawing, which is the first direction.
  • a long groove-like leftward-facing concave portion 4021b that is inclined in the left direction is provided (hereinafter, when there is no need to distinguish them, they are collectively referred to by reference numeral 4021).
  • the concave portions 4021 inclined in the same direction are arranged so as to form a row with a predetermined interval L1, and form an emboss pattern in a lattice shape extending obliquely in the distance.
  • each recessed part 4021 of this embodiment is equivalent to the thinned part prescribed
  • the recess 4021 is formed by compressing the core wrap and the absorbent body 13 from the surface of the top sheet 14.
  • the absorber 13 is one in which the compression part non-formation area (emboss pattern non-formation area) N2 is located on both sides of the compression part formation area (emboss pattern formation area) N1. This is to prevent body fluid from leaking from the leg opening 10L through the emboss pattern.
  • first compression row 4022a the row in which the right-facing recesses 4021a are arranged
  • second compression row 4022b the row in which the left-facing recesses 4021a are arranged
  • These compression rows 4022 are linearly inclined with respect to the imaginary line P at the same angle as the inclination angle of the recess 4021.
  • the plurality of first compression rows 4022a are arranged in parallel with an interval S1 therebetween.
  • the plurality of second compression rows 4022b are arranged in parallel with an interval S2.
  • the plurality of first compression rows 4022a and second compression rows 4022b are arranged to form an embossed pattern having an oblique lattice shape.
  • the intervals S1 and S2 are the same value, but they may be different values.
  • each recess 4021 is long enough to form a grid of lattices.
  • the length of the recess 4021 is shorter than the previous intervals S1 and S2. That is, as described above, the plurality of recesses 4021 form a compressed row 4022 by being arranged at a predetermined interval L1, but the length of the recesses is set so that the recesses are not located in the intersection region 4023 of the lattice. And the lattice spacing has been determined.
  • the right-facing recess 4021a and the left-facing recess 4021a do not overlap, and the top sheet 14 and the absorber 13 in the crossing region 4023 of the diagonal lattice formed by the recesses 4021 are uncompressed regions.
  • the top sheet 14 and the absorber 4013 are uncompressed areas that are not compressed.
  • a region where the right-facing recess 4021a and the left-facing recess 4021a corresponding to the thinned portions do not overlap each other is defined as the intersecting region 4023, and the intersecting region 4023 is an uncompressed region.
  • FIG. 27 is a schematic diagram enlarging the vicinity of the intersection of the compression rows in FIG. 26, and FIG. 28 is a diagram showing a cross section taken along line XXVIII-XXVIII in FIG. 29 is a diagram showing a cross section taken along line XXIX-XXIX in FIG.
  • the recess 4021 is intermittently disposed in the first recess 4211 that forms the outer shape of the recess 4021 and is recessed deeper than the first recess 4211.
  • the second concave portion 4212 has a circular shape.
  • the first concave portion 4211 is an elongated one having a length U and a width V shorter than the lengths S1 and S2 of the sides of the lattice. Specifically, it has a shape in which both ends are arcs.
  • the circular 2nd recessed part 4212 is arrange
  • the second recess 4212 is recessed deeper in the thickness direction of the absorber 4013 than the first recess 4211.
  • the second recess 4212 is positioned at the deepest point, and the first recess 4211 is positioned slightly above the bottom of the second recess 4212.
  • the depth to the bottom of the second recess 4212 is Q1
  • the depth to the bottom of the first recess 4211 is Q2, Q3 which is a difference obtained by subtracting Q2 from Q1
  • the uncompressed region The relationship between the thickness 40 of the absorber 4013 and the top sheet 14 is the same as that in the third embodiment.
  • the embossing for forming the recess 4021 can be performed in the same manner as in the third embodiment, and the same effect as in the case of forming the long recess 3021 as in the third embodiment can be obtained.
  • a region indicated by a broken line surrounding the periphery of the recess 4021 is a semi-compressed region 4024. That is, by compressing the top sheet 14 and the absorber 4013 directly and strongly to form the recess 4021, the top sheet 14 and the absorber 4013 around the recess 4021 are compressed by being pulled. Become. Therefore, the semi-compressed region 4024 is a region where the absorber 13 is indirectly compressed compared to the non-compressed regions such as the intersecting region 4023 and the main absorption region 4025.
  • the bottom surface portion of the second recess 4212 is a high-density portion 4013A in which the density of the absorber is the highest.
  • An uncompressed region such as the main absorption region 4025 is a low density portion 4013D where the density of the absorber is the lowest.
  • the bottom face part of the 1st crevice 4211 is medium density part 4013B.
  • the semi-compressed region 4024 becomes a density changing portion 4013C in which the density gradually decreases toward the non-compressed region.
  • the absorber 4013 is mainly made of SAP and pulp, and the density mainly involves the pulp fiber density. Therefore, the high density portion 4013A is in a state where the pulp is compressed and the gap between the pulps is small, while the low density portion 4013D is in a state where the gap between the pulps is larger than that in the high density portion 4013A.
  • the concave portion 4021 is formed by compression-bonding the top sheet 14 that is a synthetic fiber and the pulp absorbent body 4013 together with the main component, the bottom surface of the concave portion 4021 is almost in the form of film. Seems not to absorb. Therefore, the body fluid discharged onto the concave portion 4021 is absorbed by the density changing portion 4013 ⁇ / b> C that is the side wall of the concave portion 21 and is sent to the main absorption region 4025.
  • the recess 4021 is formed by pressing an embossing roll formed on the surface with a mold matched to the recess 4021 while rotating it. As shown in FIG. 26, when the embossing roll rotates and advances in the direction of arrow W, all the concave portions 4021 aligned in the direction orthogonal to the advancing direction W of the embossing roll are pressed simultaneously. Also in this embodiment, although the embossing roll size is determined so that the circumference of the embossing roll corresponds to the length of the absorbent body 4013 in the longitudinal direction, the embossing roll is not limited to this.
  • the advancing direction W of the embossing roll is parallel to the direction that becomes the virtual line P when the diaper 10 is completed. And as above-mentioned about 3rd Embodiment, after compressing both the top sheet 14 and the absorber 13 with an embossing roll, it laminate
  • the shortest distance between the adjacent recesses 4021 is made not to be less than T. That is, the embossed pattern in which the concave portions 4021 are arranged at a distance T or more, that is, the embossed pattern that is not embossed near the intersection of the lattice, prevents the skin contact surface from becoming hard. And since the corners of the lattice are in a soft state similar to the main absorption region 4025, even if an embossed pattern with an oblique lattice is used, the corners of the lattice are not hard and pointed and soft to the wearer. Can give a soft touch.
  • the intersection region 4023 of the first compression row 4022a and the second compression row 4022b is not a compression region where the concave portion 4021 is not provided, so that the corners of the lattice are not hard and pointed.
  • the thickness and height of the absorber 4013 are the same as those of the main absorption region 4025. Therefore, even if an oblique grid-like emboss pattern is formed, the skin contact surface of the diaper 10 gives the wearer a soft touch as a whole, and the corners of the grid do not irritate the skin.
  • the embossing is not limited to the one performed using the embossing roll, and the embossing may be performed by pressing the emboss in units of the size of the diaper using a plate-like embossed plate that matches the size of the diaper.
  • the emboss pattern formed by embossing is substantially the same as that described with respect to the long concave portions 3021 or the compression rows 3021a and 3021b in the third embodiment.
  • the lengths S1 and S2 of one side of the lattice in the present embodiment are equal and 27.0 mm.
  • the interval between the lattices is preferably 13.0 mm or more and 54.0 mm or less.
  • the length U in the longitudinal direction of the concave portion 4021 is preferably about 55% to about 90% of the lengths S1 and S2 of one side of the lattice.
  • the length U is 19.0 mm. is there.
  • the width V of the recess 4021 is 3.0 mm.
  • the width V is preferably 2.0 mm or greater and 4.0 mm or less.
  • the interval L1 between the recesses 4021 is 8.8 mm.
  • the interval L1 is preferably 4.0 mm or greater and 12.0 mm or less.
  • the thickness of the absorber 4013 and the top sheet 14 before embossing is 8.0 mm, and the depth Q1 of the deepest portion of the recess 21 as shown in FIG. Is 7.8 mm.
  • the depth Q2 of the next deepest portion is 7.5 mm.
  • the thickness Q4 of the non-compressed region is 8.0 mm.
  • the thickness including the absorber 4013 and the top sheet 14 before embossing, the maximum depth Q1 of the portion compressed by the recess 4021, and the difference Q3 from the next deepest portion are the same as in the third embodiment. The same effect can be obtained.
  • the shape and arrangement of the recess 4021, the first recess 4211, and the second recess 4212 in the present embodiment can be determined as appropriate as described for the long recess 3021 in the third embodiment.
  • the “concave portion” is referred to as including a thinned portion formed by compressing the absorbent body by embossing.
  • part in which the recessed part is formed among absorbers is highly compressed and high-density compared with the other site
  • part in which the said recessed part is formed is the same as the other site
  • part in which the said recessed part is formed is also the same as the other site
  • the absorbent article according to the present embodiment is configured such that the back sheet side of the region is raised in a region where a plurality of recesses formed on the top sheet side of the absorbent body intersect. That is, the concave portion of the present embodiment has a configuration that matches the lattice, but the boundary is defined by the intersecting region having a raised portion on the backsheet side and the topsheet side being recessed, and the intersecting region. And a thinned portion. With this configuration, the rigidity is lowered in the vicinity of the region where the plurality of recesses intersect, and as a result, the region can be easily bent and the fit can be improved.
  • the depth of the recess in the intersecting region matches the depth of the recess in the thinned portion (that is, a groove having a uniform depth along the lattice). May be formed), or may be formed so as not to match (for example, shallow).
  • FIG. 30 is a perspective view of an example of a diaper according to an embodiment of the present invention, viewed from the front side.
  • the diaper 5010 according to the present embodiment is an unfolded diaper, and includes a front body region 5010F, a back body region 5010R, and a crotch region 5010C that connects the front body region 5010F and the back body region 5010R.
  • the waist periphery opening part 5010W which surrounds a wearer's waist part with the front body area
  • a pair of left and right leg openings 5010L that surround the thighs of the wearer's legs are formed by the lower ends of the front body region 5010F and the back body region 5010R and the crotch region 5010C.
  • the front body region 5010F When wearing, the front body region 5010F is located on the abdomen side of the wearer, and the rear body region 5010R is located on the back side of the wearer.
  • the crotch region 5010C covers the crotch of the wearer when worn, and the leg of the wearer is passed through the pair of left and right leg openings 5010L. Therefore, the leg periphery opening 5010L is located at one of the wearer's legs from the base of both legs to around the thigh.
  • the imaginary line P extends through the crotch part from the abdominal side to the back side in the central part of the diaper.
  • the virtual line P is defined by defining the waist side of the unfoldable diaper as the upper side and the crotch side as the lower side, and extends along the diaper surface in the vertical direction, and passes through the crotch portion to the back. The side also extends in the vertical direction.
  • the left and right end edges of the back body region 5010R of the cover sheet 5011 located outside the unfolded diaper 5010 are overlapped with and connected to the left and right end edges of the front body region 5010F when worn, and leg openings 5010L are formed.
  • a pair of left and right fastening tapes 5010A that can be formed are bonded.
  • the fastening tape 5010A is releasably bonded to the front patch sheet 5010B bonded on the cover sheet 5011 in the front body region 10F.
  • FIG. 31 is a schematic exploded perspective view of the unfolded diaper 10 shown in FIG. 30, and FIG. 32 is a schematic view of the stretched diaper 5010 as viewed from the top sheet 14 side according to one embodiment of the present invention.
  • FIG. The absorbent body 5013 in FIG. 31 and the unfolded diaper 5010 in FIG. 32 are shown partially broken for convenience of explanation.
  • the unfolded diaper 5010 includes a cover sheet 5011 formed of a thin non-woven fabric in order from the outside to obtain a good hand and a back sheet (back surface) having liquid impermeability.
  • a pair of notches 5011N which respectively form leg openings 5010L, are formed on the left and right sides of the crotch region 5010C of the cover sheet 5011. Between the cover sheet 5011 and the pair of three-dimensional gathers 5015, a pair of thread rubbers 5016 for forming leg-around gathers are bonded in an extended state.
  • the back sheet 5012 is bonded to the cover sheet 5011, and the absorber 5013 is disposed between the back sheet 5012 and the top sheet 5014, and the top sheet 5014 is bonded to the back sheet 5012 via the absorber 5013.
  • an area corresponding to the upper end portion of the back body area 5010 ⁇ / b> R extends along the width direction of the back sheet 5012, and is elastic for giving an appropriate wearing feeling around the waist to the wearer.
  • Sheet 5010D is joined.
  • the absorbent body 5013 of the present embodiment located under the top sheet 5014 is a mat-like one in which an absorbent main body 5017 mainly composed of pulp and SAP is wrapped with a covering member (core wrap) 5018 such as tissue or nonwoven fabric. is there.
  • the absorptive main body 5017 includes SAP, but may not include SAP in the present invention.
  • a seam formed by wrapping the absorbent main body 5017 with a covering member 5018 is formed so as to extend in the longitudinal direction on the upper surface of the absorbent body 5013 as shown in FIG. 31, for example.
  • the absorbent body 5013 of this embodiment has an elongated shape so as to extend from the front body, the crotch, and the back body.
  • the absorbent body 5013 of this embodiment is a rectangular thing with different front and rear (up and down) left and right lengths. (In FIGS. 31 and 32, the front and rear (up and down) lengths are longer than the left and right lengths).
  • the shape of the absorber 5013 of this embodiment is not restricted to this, For example, the thing of the substantially square whose front and rear (upper and lower) left and right length is comparable, and the corner
  • a plurality of concave portions 5020 are continuously formed on the surface of the absorber 5013 and arranged in an oblique lattice shape.
  • the absorber 5013 is provided with a raised portion so that the back sheet 5012 side of the region protrudes in a region where the plurality of concave portions 5020 intersect (see reference numeral 5021 in FIG. 33 described later).
  • These recessed portions 5020 and raised portions are formed, for example, by squeezing the absorbent body 5013 with two rotating rolls (see FIG. 37 described later).
  • the pair of three-dimensional gathers 5015 are provided along the longitudinal direction of the absorbent body 5013, and one side edge portion of the both side edge portions extending in the longitudinal direction of the absorbent body 5013 has a substantially linear shape, and the other side edge portion. Is formed with a notch 5015N near the crotch.
  • the inner part of the pair of three-dimensional gathers 5015 is in a non-joined state with respect to the top sheet 5014, and the three-dimensional gathers 5015 include free ends at the side edges of the substantially linear shape. As shown in FIG.
  • a rubber thread 5019 that is an elastic member that acts on a tensile force is disposed at the free end of the three-dimensional gather 5015 in a stretched state along the longitudinal direction of the absorber 5013.
  • the pair of three-dimensional gathers 5015 can stand up along both side edges of the absorbent body 5013 in a worn state by the rubber thread 5019.
  • FIG. 33 is a schematic diagram showing a cross section in the XXXIII-XXXIII direction in FIG. This cross-section indicating line in the XXXIII-XXXIII direction is drawn so as to pass through the center of the region where the plurality of recesses 5020 intersect in FIG. That is, the two recesses 5020 shown in FIG. 33 indicate a region where a plurality of recesses 5020 intersect.
  • FIG. 34 is a schematic diagram showing a cross section in the XXXIV-XXXIV direction in FIG.
  • FIG. 35 is a schematic diagram showing a cross section in the XXXV-XXXV direction in FIG.
  • FIG. 36 is a schematic plan view of the absorber 5013 according to the present embodiment as viewed from the top sheet 5014 side.
  • the solid line shown in FIG. 36 represents the recessed part 5020, and the several dot-shaped hatching area
  • region represents the protruding part 5021.
  • FIG. The broken line shown in FIG. 36 is drawn in the longitudinal direction of the absorbent body 5013 so as to include a plurality of raised portions 5021, and corresponds to “dented portion 5041 of the second roll 5040” described later with reference to FIG. To do.
  • a raised portion 5021 is formed on the back sheet 5012 side of the absorber 5013 at a position below a region where a plurality of concave portions 5020 intersect. That is, the raised portion 5021 is formed on the back sheet 5012 side of the absorbent body 5013 corresponding to the region where the plurality of concave portions 5020 intersect.
  • the raised portion 5021 has the first concave portion 5020a or the second concave portion other than the region where the back sheet 5012 side of the absorbent body 5013 corresponding to the region where the first concave portion 5020a and the second concave portion 5020b intersect with each other.
  • the absorber 5013 corresponding to 5020b is formed so as to protrude from the back sheet 5012 side.
  • the back sheet 5012 side of the absorbent body 5013 corresponding to the first recess 5020a or the second recess 5020b other than the intersecting region, as shown in FIG. 34 absorbs the region corresponding to the region where the plurality of recesses 5020 do not intersect. This is the back sheet 5012 side of the body 5013.
  • the surface on the back sheet 5012 side of the absorber 5013 below the recess 5020 shown in FIG. 33 is higher than the surface on the back sheet 5012 side of the absorber 5013 below the recess 5020 shown in FIG. Can be seen.
  • this bulge 5021 is formed in a region where a plurality of recesses 5020 intersect, the degree of compression in the portion of the absorbent body 5013 is small. As a result, the binding of pulp and SAP is weakened. It becomes easy to bend in the region where the recesses 5020 intersect, and the fit of the diaper 10 can be improved.
  • the bulge of the bulge portion 5021 is formed so as to protrude to the outside of the unfolded diaper 5010 as shown in FIG. 33, but the present invention is not limited to this. If the raised portion 5021 is formed so as to be raised with respect to the surface corresponding to the bottom of the recess 5020 other than the intersecting region, the raised portion 5021 is not formed so as to protrude outside the diaper 5010. Also good. For example, the case where the surface on the back sheet 5012 side of the absorbent body 5013 corresponding to the region where the plurality of recesses 5020 do not intersect is recessed inward with respect to the diaper 5010.
  • the raised portion 5021 is formed in a region where at least a plurality of concave portions 5020 intersect.
  • the raised portion 5021 may be formed on the back sheet 5012 side of the absorbent body 5013 corresponding to the first recessed portion 5020a or the second recessed portion 5020b other than the intersecting region. With this configuration, the bottom of the recess 5020 other than the intersecting region of the absorber 5013 is softened, so that the fit can be further improved.
  • the thickness of the thinnest portion including the covering member 5018 in the absorber 5013 corresponding to the bottom of the recess 5020 is preferably 0.1 mm to 1.0 mm in order to effectively exhibit the effects of the present invention.
  • the thickness of the region corresponding to the concave portion 5020 in which the raised portion 5021 is formed in the absorber 5013 is preferably 0.1 mm to 1.0 mm thicker than the thickness of the thinnest portion, and 0.2 mm to 0.00 mm. A thickness of 4 mm is more preferable for effectively exhibiting the effects of the present invention.
  • the basis weight in the range of the absorbent body (absorbent mat) 5017 mixed with SAP and pulp is preferably 170g / m 2 ⁇ 600g / m 2, 240g / m 2 ⁇ 530g / m 2 is more preferred there (range of the basis weight of the pulp is preferably 80g / m 2 ⁇ 300g / m 2, 160g / m 2 ⁇ 240g / m 2 is more preferable).
  • a first recess 5020a extending along the first direction, and a first direction in a state intersecting the first recess 5020a.
  • a second recess 5020b extending along a different second direction is formed.
  • the 1st recessed part 5020a and the 2nd recessed part 5020b are each comprised by the some thinning part located in parallel with each other.
  • the raised portion 5021 has a first concave portion 5020a or a second concave portion 5020b on the back sheet 5012 side of the absorbent body 5013 corresponding to a region where the first concave portion 5020a and the second concave portion 5020b intersect. It is formed so that it may protrude with respect to the surface corresponding to the bottom part.
  • the recess 5020 is not formed up to the end of the absorbent body 13 in the width direction (left-right direction in FIG. 36), but extends along the longitudinal direction (vertical direction in FIG. 36) of the absorbent body 5013. It is formed in a band shape.
  • the region of the absorber 13 where the recess 5020 is formed is defined as a recess formation region N1, and the regions at both ends in the width direction of the absorber 5013 where the recess 5020 is not formed are defined as a recess non-formation region N2.
  • the present invention may be configured not to provide the recess non-formation region N2.
  • the present invention allows a mode in which the recess 5020 is not formed up to the end in the longitudinal direction (vertical direction in FIG. 36) of the absorber 5013 or a mode in which the recess 5020 is formed up to the end. In the case of forming up to the end portion, it is possible to improve air permeability and prevention of stuffiness.
  • the concave portion 5020 includes a first concave portion 5020a extending obliquely toward one side (right side in FIG. 36) and the other side (left side in FIG. 36) in the width direction of the absorber 5013. And a second concave portion 5020b extending obliquely.
  • the position of the imaginary line P on the absorber 5013 extends from the upper end of the front body part toward the lower end of the rear body part. Specifically, as shown in FIG. 36, when the absorbent body 5013 has an elongated shape, it extends in the longitudinal direction.
  • the recess 5020 extends with an inclination with respect to the virtual line P.
  • the first concave portion 5020a is inclined at an angle ⁇ on one side and the second concave portion 5020b is inclined at an angle ⁇ on the other side with respect to a direction along the side edge about the virtual line P, for example, the longitudinal direction.
  • the angle ⁇ and the angle ⁇ may be the same or different.
  • the plurality of first recesses 5020a are inclined at the same angle and are arranged at regular intervals. That is, although each 1st recessed part 5020a is arrange
  • the ridges 5021 have at least a pair of parallel contours, and the plurality of ridges 5021 are aligned along an oblique lattice and formed in parallel to each other. Yes. Furthermore, since the raised portion 5021 has a parallel contour, the absorber 5013 can be easily bent at the contour portion. Therefore, by determining the contour shape of the raised portion 5021, it is possible to arbitrarily set the bent portion of the absorber 5013.
  • the softness is improved in the region where the plurality of recesses intersect, and the absorber 5013 can be easily bent at the plurality of recesses, so that the fit of the diaper 5010 can be improved. It becomes possible.
  • FIG. 37 is a view for explaining a state in which the absorbent body 5013 is squeezed by two rolls according to an embodiment of the present invention
  • FIGS. 38A and 38B show a convex portion 5031 and a hollow portion 5041.
  • 38A is a cross-sectional view when the absorber is squeezed
  • FIG. 38A is in the MD direction (flow direction)
  • FIG. 38B is in the CD direction (width direction).
  • the cross section of FIG. 38A and FIG. 38B is cut
  • a manufacturing apparatus 5100 for manufacturing a diaper 5010 includes a first roll (first rotating member) 5030 and a second roll (second rotating member) 5040 that rotates together with the first roll 5030. Is done.
  • the first roll 5030 has an outer peripheral surface portion on which a convex portion 5031 is formed, and abuts on the surface of the absorbent body 5013 on the top sheet 5014 side.
  • the 2nd roll 5040 has an outer peripheral surface part in which the hollow part 5041 was formed, and contact
  • the convex portion 5031 is configured to form a first concave portion 5020a, and extends along a third direction corresponding to the first direction (the formation direction of the first concave portion 5020a shown in FIG. 36); A second recess 5020b is formed, and in a state intersecting with the first protrusion 5031a, a fourth direction corresponding to the second direction (the formation direction of the second recess 5020b shown in FIG. 36) is different from the third direction. 2nd convex part 5031b extended along a direction.
  • the hollow portion 5041 is disposed at a position corresponding to a region of the second roll 5040 where the first convex portion 5031a and the second convex portion 5031b intersect.
  • the recess 5041 is formed of a plurality of recesses arranged in parallel to each other. Therefore, since the hollow part 5041 has a simple structure, it can be easily formed on the second roll 5040.
  • the height (thickness) of the convex portion 5031 in the radial direction of the first roll 5030 in the relationship between the convex portion 5031 of the first roll 5030 and the concave portion 5041 of the second roll 5040 is preferably 2 mm to 20 mm, and more preferably 5 mm to 10 mm.
  • the depth of the recessed portion 5041 in the radial direction of the second roll 5040 is preferably 0.05 mm to 5 mm, and more preferably 0.1 mm to 0.5 mm.
  • the diaper 5010 according to the present embodiment is manufactured by, for example, the following manufacturing method or a manufacturing apparatus for performing the method.
  • an absorbent main body 5017 composed of pulp and SAP is wrapped with a covering member 5018 to generate a continuous mat-like absorbent body 5013.
  • the continuous absorber 5013 that has flowed in the A direction from the upstream in the MD direction is sandwiched while the first roll 5030 rotates in the B direction and the second roll 5040 rotates in the C direction.
  • the continuous absorber 5013 is embossed.
  • a concave portion 5020 and a raised portion 5021 are formed in the continuous absorbent body 5013.
  • the top sheet 5014 side of the continuous absorbent body 5013 is compressed so that the first recess 5020a and the second recess 5020b are formed by the first roll 5030, and at the same time, the second roll 5040 is compressed.
  • the backsheet 5012 side of the continuous absorbent body 5013 is deformed so that the raised portion 5021 is formed on the backsheet 5012 side of the absorbent body 5013 corresponding to the region where the first concave portion 5020a and the second concave portion 5020b intersect.
  • the lattice line that is, the intersecting region of the recesses 5020 is allowed to be deformed by the absorber 5013 into the recess 5041 of the second roll 5040 and is not compressed even when pressed from the first roll 5030 (that is, with high density). Or a site where compression does not occur substantially.
  • the continuous absorbent body 5013 after embossing is made to flow downstream in the MD direction, and is cut by a cutting device at a length necessary for one diaper, and a top sheet 5014, a back sheet 5012, a cover sheet 5011, and the like. After being joined, the diaper 10 is manufactured.
  • the recessed part 5020 and the protruding part 5021 are formed by squeezing the absorptive main body 5017 and the coating
  • this invention is not limited to this.
  • the absorbent main body 5017, the covering member 5018 (that is, the absorbent body 5013) and the top sheet 5014 are squeezed (see FIG. 39 described later), or only the absorbent main body 5017 is squeezed. By doing so, you may form the recessed part 5020 and the protruding part 5021.
  • FIG. When only the absorptive main body 5017 is squeezed, the absorptive main body 5017 may contain no SAP.
  • FIG. 39 is a schematic cross-sectional view in the MD direction for explaining a state in which the absorbent body 5013 and the top sheet 5014 are squeezed with two rolls according to another embodiment of the present invention.
  • the top sheet 5014 is continuous as shown in FIG.
  • Each of the plurality of absorbers 5013 is laminated in advance to form a mat, and is divided into one piece of the diaper 10. As shown in FIG. 39, the plurality of absorbers 5013 are joined (for example, bonded) to a continuous top sheet 5014 at a predetermined interval.
  • a laminate of a plurality of absorbent bodies 5013 and a top sheet 5014 flows in the direction A, and in the same way as in the above embodiment, the first roll 5030 and the second roll 5040 of the manufacturing apparatus 5100 Squeezed.
  • the absorber 5013 and the top sheet 5014 are squeezed together, and the concave portion 5020 and the raised portion 5021 are formed in the laminate of the absorber 13 and the top sheet 5014. If the back sheet 5012, the cover sheet 5011, etc. are joined to the absorber 5013 and the top sheet 5014 after pressing, and it cut
  • the raised part 5021 was provided in the back sheet 5012 side of the absorber 5013 by pinching with the 1st roll 5030 and the 2nd roll 5040, it is not this limitation, In this invention, for example, The raised portion 5021 may be provided by sucking the back surface 5012 side of the absorber 5013.
  • the structure of the diaper according to the present embodiment is not limited to the unfolded type as described above, as long as it is a diaper including the configuration of the absorbent article defined in the claims. It may be a simple configuration.
  • the present invention can be applied to a pants-type diaper as shown in FIG. 1 and other urine pads.
  • a plurality of recesses 5020 are continuously formed on the surface of the absorber 5013, so that an oblique lattice-like arrangement pattern is completed.
  • the present invention is not limited to this.
  • the plurality of recesses 5020 may be intermittently formed on the surface of the absorber 5013.
  • the arrangement pattern of the recesses 5020 is, for example, Various arrangement patterns such as a polygonal arrangement pattern such as a triangle or a hexagon, a linear pattern, a curved line, or a wavy pattern may be used.
  • the top sheet 5014, the absorber 5013, the back sheet 5012, and the cover sheet 5011 are entirely bonded in the recess 5020 and the raised portion 5021.
  • the top sheet 5014, the absorber 5013, the back sheet 5012, and the cover sheet 5011 are partially bonded. Also good.
  • the heights of the peaks of the first convex portion 5031a and the second convex portion 5031b are equal, that is, the depths of the bottom portions of the first concave portion 5020a and the second concave portion 5020b are equal. Even if they are not equal, the region where the plurality of recesses intersect can be softened. The same applies to the depths of the plurality of depressions 5041 and the heights of the protruding portions of the plurality of protruding parts 5021, and they may not be equal to each other.
  • FIG. 40A and 40B are plan views showing two examples of the convex pattern on the surface of the first roll 5030.
  • FIG. 40A shows an oblique grid pattern
  • FIG. 40B shows a vertical and horizontal grid pattern.
  • 41A to 41D are plan views showing examples of the recess pattern on the surface of the second roll 5040
  • FIG. 41A is a stripe pattern in the vertical direction (circumferential direction of the second roll 5040)
  • FIG. 41B is a checkered pattern.
  • FIG. 41C shows a pattern in which rhombuses are arranged in an oblique grid pattern
  • FIG. 41D shows a pattern in which squares are arranged in a vertical and horizontal grid pattern.
  • FIG. 42A to 42F are diagrams showing examples of raised portion patterns formed on the absorbent body 5013.
  • FIG. 42A is a pattern in which butterflies are arranged in an oblique lattice pattern
  • FIG. 42B is a diagram in which substantially oblique crosses are continuous.
  • 42C is a pattern in which rhombuses are arranged in a diagonal grid pattern
  • FIG. 42D is a pattern in vertical stripes
  • FIG. 42E is a pattern in which squares are arranged in a vertical and horizontal grid pattern
  • FIG. 42F is a diagonal grid in the X form.
  • Each of the patterns arranged in a shape is shown. 40A and 40B, the convex portion 5031 is represented by dot-shaped hatching, in FIGS.
  • the recessed portion 5041 is represented by mesh-like hatching, and in FIGS. 42A to 42F, the raised portion 5021 is represented by a plurality of hatched hatchings.
  • the 40A, 41A, and 42A are the same patterns as in the above embodiment.
  • intersect, and the hollow part 5041 are arrange
  • the convex part pattern formed on the surface of the first roll 5030, the concave part pattern formed on the surface of the second roll 5040, and the raised part pattern formed on the absorber 13 can have various shapes. Various combinations are possible. For example, if the absorbent body 5013 is sandwiched between the first roll 5030 having the convex part pattern shown in FIG. 40A and the second roll 5040 having the concave part pattern shown in FIG. 41B, the absorbent body 5013 is shown in FIG. 42B. A raised portion 5021 having a pattern in which substantially oblique crosses are continuous is formed.
  • the raised portion 5021 has this shape, in addition to the raised portion 5021 formed in the region where the plurality of recessed portions 5020 intersect in the absorber 5013, the raised portion 5021 is also formed in the region where the plurality of recessed portions 5020 do not intersect. Since the softness is increased even in the region where the plurality of concave portions 5020 are not intersected, the fitting property can be further improved.
  • the absorbent body 5013 is sandwiched between the first roll 5030 having the convex part pattern shown in FIG. 40A and the second roll 5040 having the concave part pattern shown in FIG. 41C, the absorbent body 5013 has the structure shown in FIG. 42C. A raised portion 5021 having such a rhombus pattern is formed.
  • the absorbent body 5013 is sandwiched between the first roll 5030 having the convex part pattern shown in FIG. 40B and the second roll 5040 having the concave part pattern shown in FIG. 41A.
  • the absorbent body 5013 is shown in FIG. 42D.
  • a raised portion 5021 having such a vertical stripe pattern is formed. Since the raised portion 5021 has this shape, in addition to the raised portion 5021 formed in the region where the plurality of recessed portions 5020 intersect in the absorber 5013, the raised portion 5021 is also formed in the region where the plurality of recessed portions 5020 do not intersect. Thus, the effect as described in FIG. 42B is obtained.
  • the absorber 5013 is clamped by the 1st roll 5030 which has a convex part pattern shown to FIG. 40B, and the 2nd roll 5040 which has a hollow part pattern shown to FIG. 41D, it will show to FIG. 42E in the absorber 5013.
  • a raised portion 5021 having such a square pattern is formed.
  • the present invention is not limited to the patterns and combinations described above.
  • examples of the convex pattern on the surface of the first roll 5030 include horizontal (CD direction) and diagonal stripe patterns, patterns using curves, and the like. The same applies to the recess pattern.
  • the raised portion 5021 is constituted by a straight line, but may be a curved line as long as the effect of the present invention can be obtained.
  • the plurality of raised portions 5021 described above have the same shape and size (area), but may be different in the present invention.
  • a large raised portion 5021 may be provided at a site where the absorber 5013 is to be bent greatly.
  • the part to be bent greatly includes, for example, a place where the absorbent body 5013 is desired to be pocketed on both sides (leg side) of the crotch region 5010C, a boundary part between the crotch region 5010C and the back body region 5010R (back side), and a crotch region
  • the present invention is not limited to the cross-sectional shape of the recessed portion 5041 shown in FIGS. 38A and 38B, and the present invention can be changed as follows.
  • FIG. 43A and 43B are diagrams showing two examples of the cross-sectional shape of the recess 5041.
  • FIG. 43A shows a trapezoidal shape
  • FIG. 43B shows a recess with two side walls.
  • FIG. 43A shows a cross-sectional shape of a recess 5041 similar to that of the above embodiment. Since the absorber 5013 is squeezed between the recess 5041 and the protrusion 5031 having a recess with two side walls, the recess 5041 can be formed in the same manner as in the above embodiment. Softness can be obtained in the region where the recesses intersect.

Landscapes

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

Abstract

La présente invention vise à fournir un article absorbant dont le corps absorbant présente une flexibilité améliorée. La présente invention concerne par conséquent un article absorbant (10) doté d'une feuille de surface avant perméable aux liquides (14), d'une feuille de surface arrière imperméable aux liquides (12), et d'un corps absorbant (13) interposé entre la feuille de surface avant (14) et la feuille de surface arrière (12). Dans le corps absorbant (13), de multiples sections encastrées (502) sont formées sur la surface du côté feuille de surface avant (14). Les multiples sections encastrées (502) forment de multiples premiers motifs (501a) s'étendant parallèlement dans une première direction et de multiples seconds motifs (501b) s'étendant parallèlement dans une seconde direction qui croise la première direction. Les multiples premiers motifs (501a) et les multiples seconds motifs (501b) forment de multiples régions d'intersection (901, 902), la première direction et la seconde direction se croisant. La profondeur de chacune des sections encastrées (502) situées au niveau des régions d'intersection (901, 902) est inférieure à la profondeur de chacune des sections encastrées (502) situées au niveau d'une région intermédiaire (903) entre deux régions d'intersection adjacentes (901, 902).
PCT/JP2016/002371 2015-05-15 2016-05-16 Article absorbant, et dispositif de fabrication et procédé de fabrication associé WO2016185705A1 (fr)

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JP2015-100512 2015-05-15
JP2015-100509 2015-05-15
JP2015100512A JP2016214405A (ja) 2015-05-15 2015-05-15 吸収性物品
JP2015100510A JP6503877B2 (ja) 2015-05-15 2015-05-15 吸収性物品
JP2015-100510 2015-05-15
JP2015100509A JP6413921B2 (ja) 2015-05-15 2015-05-15 吸収性物品
JP2016044974A JP6558281B2 (ja) 2016-03-08 2016-03-08 吸収性物品、その製造装置および製造方法
JP2016-044974 2016-03-08

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6445801A (en) * 1987-05-15 1989-02-20 Procter & Gamble Absorbable pad
JPH10225480A (ja) * 1997-01-08 1998-08-25 Mcneil Ppc Inc 順応させる手段を有する吸収性製品
US5833679A (en) * 1994-09-01 1998-11-10 Uni-Charm Corporation Absorbent structure of sanitary article
JP2011200337A (ja) * 2010-03-24 2011-10-13 Unicharm Corp 体液処理用品およびその製法
JP2013000141A (ja) * 2011-06-10 2013-01-07 Unicharm Corp 吸収性物品
JP2014097132A (ja) * 2012-11-13 2014-05-29 Uni Charm Corp 吸収性物品

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5052868B2 (ja) * 2006-11-22 2012-10-17 ユニ・チャーム株式会社 吸収性物品及びその製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6445801A (en) * 1987-05-15 1989-02-20 Procter & Gamble Absorbable pad
US5833679A (en) * 1994-09-01 1998-11-10 Uni-Charm Corporation Absorbent structure of sanitary article
JPH10225480A (ja) * 1997-01-08 1998-08-25 Mcneil Ppc Inc 順応させる手段を有する吸収性製品
JP2011200337A (ja) * 2010-03-24 2011-10-13 Unicharm Corp 体液処理用品およびその製法
JP2013000141A (ja) * 2011-06-10 2013-01-07 Unicharm Corp 吸収性物品
JP2014097132A (ja) * 2012-11-13 2014-05-29 Uni Charm Corp 吸収性物品

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CN107530213A (zh) 2018-01-02
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TW201801692A (zh) 2018-01-16
TWI607745B (zh) 2017-12-11

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