WO2013187265A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2013187265A1
WO2013187265A1 PCT/JP2013/065273 JP2013065273W WO2013187265A1 WO 2013187265 A1 WO2013187265 A1 WO 2013187265A1 JP 2013065273 W JP2013065273 W JP 2013065273W WO 2013187265 A1 WO2013187265 A1 WO 2013187265A1
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WO
WIPO (PCT)
Prior art keywords
absorbent core
absorbent
sheet
less
block
Prior art date
Application number
PCT/JP2013/065273
Other languages
English (en)
Japanese (ja)
Inventor
美奈 富田
彦行 鈴木
茂人 柳原
佐藤　信也
Original Assignee
花王株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 花王株式会社 filed Critical 花王株式会社
Priority to RU2014154004A priority Critical patent/RU2643124C2/ru
Priority to CN201380030882.XA priority patent/CN104363869B/zh
Publication of WO2013187265A1 publication Critical patent/WO2013187265A1/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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49001—Absorbent articles specially adapted to be worn around the waist, e.g. diapers having preferential bending zones, e.g. fold lines or grooves
    • 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
    • A61F13/534—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 an inhomogeneous composition through the thickness of the pad
    • A61F13/535—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 an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
    • A61F13/536—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 an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression

Definitions

  • the present invention relates to an absorbent article such as a disposable diaper.
  • an absorbent article using a block-shaped absorbent body provided with a groove extending in a planar direction is known (see Patent Documents 1 and 2).
  • the absorbent body (absorbent core) provided in the absorbent article described in Patent Document 1 vertical embossed concave portions extending from the substantially central portion in the longitudinal direction to the ventral side portion and the back side portion are spaced apart in the width direction.
  • Several are arranged. When such an absorber (absorbent core) is provided, the body fluid is easily diffused by the vertical embossed recesses, and the absorbability of the body fluid in use is improved.
  • the vertical embossed concave portion of the absorbent body (absorbent core) described in Patent Document 1 is formed by embossing, the vertical embossed concave portion has a high density, and the rigidity of the entire absorbent body is increased. It will increase.
  • the absorbent body provided in the absorbent article described in Patent Document 2 is formed by arranging a plurality of small absorbent parts divided in a plan view on a substrate sheet.
  • the absorbent body absorbent core
  • the absorbent body absorbent core
  • the absorbability of the body fluid during use is improved and the rigidity of the entire absorbent body is lowered. Flexibility.
  • the present applicant has previously proposed a disposable diaper in which a liquid-permeable second sheet is arranged between the top sheet and the absorbent body (see Patent Document 3).
  • the absorbent body of the absorbent article described in Patent Document 2 is formed by arranging a plurality of small absorbent portions on the substrate sheet, the strength of the absorbent body (absorbent core) is significantly reduced. In some cases, the shape of the absorbent body (absorbent core) may be destroyed after the body fluid is absorbed, and there is room for improvement in improving the shape retention of the absorbent body after the body fluid is absorbed.
  • Patent Document 2 does not describe anything about providing a liquid-permeable second sheet
  • Patent Document 3 does not describe anything about providing a block-shaped absorber (absorbent core).
  • a block-shaped absorber as described above, in both Patent Document 2 and Patent Document 3, in an absorbent article including a block-shaped absorbent body (absorbent core) and a liquid-permeable second sheet, a block-shaped absorbent body (absorbent core).
  • a block-shaped absorbent body absorbent core
  • the present invention relates to providing an absorbent article including an absorbent body that can eliminate the drawbacks of the above-described conventional technology.
  • the present invention includes a top sheet disposed on the skin facing surface side, a back sheet disposed on the non-skin facing surface side, and a vertically long absorbent body disposed between the two sheets. It has a ventral part located on the ventral side, a dorsal part located on the dorsal side, and a crotch part located between them, and a liquid-permeable intermediate sheet is provided between the absorber and the top sheet.
  • the present invention relates to an absorbent article.
  • the absorber has an absorbent core that includes an absorbent polymer.
  • the absorbent core has a plurality of convex portions having a relatively high basis weight and a block structure including a groove portion having a relatively low basis weight surrounding each convex portion, extending from the ventral side to the back side.
  • a plurality of block regions are arranged in the vertical direction, and the convex portion and the groove portion of the absorbent core are integrally formed.
  • the intermediate sheet covers a part of the block region of the absorbent core, and the length of the intermediate sheet in the longitudinal direction is shorter than the length of the block region of the absorbent core in the longitudinal direction. It is biased to the ventral side.
  • FIG. 1 is a perspective view of an unfolded disposable diaper according to an embodiment of the present invention.
  • FIG. 2 is a partially broken plan view of the disposable diaper shown in FIG. 1 viewed from the top sheet side.
  • 3 is a cross-sectional view taken along the line II of FIG. 4 is a cross-sectional view taken along line II-II in FIG.
  • FIG. 5 is a plan view of the absorbent core and the intermediate sheet of the disposable diaper shown in FIG. 1 as viewed from the top sheet side.
  • FIG. 6 is a schematic view showing an example of an absorbent body manufacturing apparatus used in the deployable disposable diaper according to the embodiment of the present invention.
  • FIG. 1 is a perspective view of an unfolded disposable diaper according to an embodiment of the present invention.
  • FIG. 2 is a partially broken plan view of the disposable diaper shown in FIG. 1 viewed from the top sheet side.
  • 3 is a cross-sectional view taken along the line II of FIG. 4 is a cross-sectional view taken along line II-II
  • FIG. 7 is a schematic cross-sectional view along the width direction of a part (concave portion) on the outer peripheral surface side of the rotating drum shown in FIG.
  • FIG. 8 is a schematic cross-sectional view showing a state in which an absorbent material is deposited in the concave portion of the rotating drum shown in FIG.
  • FIG. 9 is a plan view of another absorbent core and intermediate sheet used in the disposable diaper according to the embodiment of the present invention as viewed from the top sheet side (corresponding to FIG. 5).
  • FIG. 10 is the top view which looked at the other absorptive core used for the disposable diaper which is embodiment of this invention from the surface sheet side.
  • FIG. 11 is the top view which looked at the other absorptive core used for the disposable diaper which is embodiment of this invention from the surface sheet side.
  • FIG. 1 shows a perspective view of an unfolded disposable diaper according to an embodiment of the present invention
  • FIG. 2 shows a partially broken plan view of the disposable diaper shown in FIG. 3 is a cross-sectional view taken along line II in FIG. 2
  • FIG. 4 is a cross-sectional view taken along line II-II in FIG.
  • the top view of the absorptive core which the disposable diaper shown in FIG. 1 has in FIG. 5 is shown.
  • the disposable diaper 1 (hereinafter also referred to as “diaper 1”) of the present embodiment, as shown in FIGS. 1 to 4, is provided with a topsheet 2 disposed on the skin facing surface side and a non-skin facing surface side.
  • the back sheet 3 includes a vertically long absorbent body 4 disposed between the two sheets 2 and 3, and a liquid-permeable intermediate sheet 5 is disposed between the absorbent body 4 and the top sheet 2.
  • the diaper 1 is formed symmetrically with respect to a center line CL extending in the vertical direction.
  • the diaper 1 is divided into three equal parts in the longitudinal direction (hereinafter also referred to as “Y direction”; Y direction: a direction parallel to the center line CL) in the unfolded state. It has a ventral part A, a dorsal part B, and a crotch part C positioned between these A and B.
  • the abdomen A is a part located on the wearer's abdomen when the diaper is worn
  • the dorsal part B is a part located on the dorsal side of the wearer
  • the crotch part C is located on the inseam of the wearer. It is a part to do.
  • the crotch portion C is located in the center of the diaper 1 in the longitudinal direction (Y direction).
  • the direction orthogonal to the vertical direction (Y direction) will be described as the horizontal direction of the diaper 1 (hereinafter also referred to as “X direction”).
  • the “skin facing surface” is a surface disposed on the skin side of the wearer when worn, out of the front and back surfaces of each member such as the surface sheet 2 constituting the diaper 1.
  • the “surface” is a surface that is directed to the side opposite to the skin side of the wearer when wearing, out of the front and back surfaces of each member such as the surface sheet 2.
  • the diaper 1 extends laterally (X direction) outward from the left and right side edges of the crotch C at the left and right side edges of the ventral side A and the back side part B, respectively. ing.
  • the left and right side edges of the crotch portion C are curved in an arc shape inward in the lateral direction (X direction), and the central portion in the longitudinal direction (Y direction) is constricted inward as a whole.
  • the top sheet 2 and the back sheet 3 respectively extend outward from the left and right side edges and the front and rear end edges of the absorber 4.
  • the surface sheet 2 has a lateral dimension (X direction) that is smaller than a lateral dimension (X direction) of the back sheet 3.
  • Each of the top sheet 2 and the back sheet 3 is joined to each other directly or through another member at the extended portion extending outward from the peripheral edge of the absorbent body 4, and sandwiches and fixes the absorbent body 4 is doing.
  • the diaper 1 is a so-called unfolded diaper as shown in FIGS. 1 and 2, and a pair of fastening tapes 7, 7 are provided on the left and right edges of the back side B, and the outer surface of the abdomen A On the (non-skin facing surface), a landing tape 8 for fastening the fastening tapes 7 is provided.
  • a three-dimensional gather forming sheet 62 having elastic members 61 fixed in an expanded state in the Y direction is provided on both side portions along the longitudinal direction (Y direction) of the diaper 1.
  • a pair of three-dimensional gathers 6 and 6 are formed by being arranged and fixed on the side portions. Further, as shown in FIG.
  • a plurality of leg elastic members 63 for forming leg gathers are arranged in an extended state in the Y direction on both side portions along the longitudinal direction (Y direction) of the diaper 1. Leg gathers are formed by the contraction of the leg elastic members 63. Moreover, the waist part elastic member 64 for waist gather formation is distribute
  • the fixing position of the three-dimensional gather forming sheet 62 and the top sheet 2 will be described in detail later.
  • the absorbent body 4 has an absorbent core 41 containing an absorbent polymer, and the diaper 1 also has a covering material 42 that wraps the absorbent core 41.
  • the absorbent body 4 is formed by coating a liquid-retaining absorbent core 41 that is long in the longitudinal direction (Y direction) with a covering material 42 that is a liquid-permeable hydrophilic sheet.
  • the diaper 1 wraps the absorbent core 41 so that both side portions of one covering material 42 are folded and the side edge portions of the covering material 42 are overlapped with each other.
  • the absorbent core 41 may be wrapped with two separate covering materials.
  • the abdominal part A, the back part B, and the crotch part C of the absorbent article substantially coincide with the abdominal part A, the back part B, and the crotch part C of the absorbent body 4, respectively. ing.
  • the absorbent core 41 has a constricted portion 41c constricted inward at the crotch portion C, as shown in FIGS.
  • the absorbent core 41 is configured such that the left and right side edges of the abdominal side A and the left and right side edges of the back side B are lateral to the left and right side edges of the crotch part C, respectively. It extends outward in the direction (X direction).
  • the left and right side edges of the crotch portion C are curved in an arc shape inward in the lateral direction (X direction), and the crotch portion C that is the central portion in the longitudinal direction (Y direction) as a whole It has an inwardly bound shape.
  • the absorbent core 41 is, as shown in FIG. 4, a constricted portion 41 c located in the crotch portion C in which the overall width Wa in the ventral side A is wider than the overall width Wb in the dorsal side B.
  • the overall width Wc at is the narrowest.
  • the widths Wa and Wb are values measured at the widest position, and the width Wc is a value measured at the narrowest position.
  • the absorbent core 41 includes a plurality of convex portions 43 having relatively high basis weights and a block 44 having a relatively low basis weight surrounding each convex portion 43.
  • the structure 400 has a plurality of block regions 411 arranged in the longitudinal direction (Y direction) from the ventral side A to the back side B, and in the diaper 1, a non-block region surrounding the outer periphery of the block region 411 412 is further included.
  • the non-blocking region 412 has a relatively high basis weight, like the high basis weight convex portion 43.
  • the groove 44 of the absorbent core 41 includes a vertical groove 44 ⁇ / b> Y extending in the vertical direction (Y direction) and a horizontal groove 44 ⁇ / b> X extending in the horizontal direction (X direction). . Therefore, in the diaper 1, the block region 411 of the absorbent core 41 includes a vertical groove 44Y extending in the vertical direction (Y direction) and a horizontal groove 44X extending in the horizontal direction (X direction), as shown in FIGS.
  • a block structure 400 is formed by being continuously arranged in the vertical direction (Y direction) from the abdominal side A to the back side B.
  • the vertical groove 44 ⁇ / b> Y constituting the groove 44 extends parallel to the vertical direction (Y direction) as shown in FIGS. 2 and 4, but extends in the vertical direction (Y direction). As long as it is curved, it may be inclined and extended. The same applies to the lateral grooves 44X constituting the grooves 44.
  • the block area 411 of the absorbent core 41 has a width Wa1 of the ventral part 411 a and a width Wb1 of the back part 411 b of the block area 411.
  • the crotch portion 411c is formed larger than the width Wc1.
  • the block area 411 of the diaper 1 is arranged on the ventral side block area 411 a arranged on the ventral side A side of the diaper 1 and on the back side B side of the diaper 1.
  • a rectangular ventral block region 411a, a rectangular crotch block region 411c, and a rectangular dorsal block region 411b extend from the ventral portion A to the dorsal portion B in the vertical direction (Y direction). Are arranged continuously.
  • the ventral block region 411a and the dorsal block region 411b each extend outward in the width direction (X direction) from the crotch block region 411c.
  • the width of the block region 411a on the ventral side width Wa1 of the ventral portion 411a of the block region 411)
  • the width of the block region 411b on the back side width Wb1 of the back side portion 411b of the block region 411) The same.
  • the width of the crotch block region 411c (the width Wc1 of the crotch portion 411c of the block region 411) is the narrowest.
  • the widths Wa1 and Wb1 are values measured at the widest position, and the width Wc1 is a value measured at the narrowest position.
  • the crotch portion C of the absorbent core 41 is bound inward, and the crotch portion of the block region 411 constituting the absorbent core 41. Part C is also wrapped inward.
  • the back block region 411b has five convex portions 43 defined by the vertical grooves 44Y and the horizontal grooves 44X arranged regularly in the horizontal direction (X direction).
  • the block structure formed is regularly arranged in four rows in the vertical direction (Y direction).
  • the crotch block region 411 c has a block structure in which three convex portions 43 are regularly arranged in the horizontal direction (X direction), and regularly in the vertical direction (Y direction). Seven rows are arranged. Further, as shown in FIG.
  • the ventral block region 411a has a block structure in which five convex portions 43 partitioned by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction). The four rows are regularly arranged in the vertical direction (Y direction).
  • the block region 411 of the absorbent core 41 as shown in FIG. 5, four of the six longitudinal grooves 44Y extending in the longitudinal direction (Y direction) are respectively connected from the ventral side A to the back side B. Is arranged in a straight line.
  • the liquid-permeable intermediate sheet 5 is provided between the absorber 4 and the top sheet 2.
  • the liquid-permeable intermediate sheet 5 is a so-called sub-layer sheet, covers a part of the block region 411 of the absorbent core 41, and the length of the intermediate sheet 5 in the vertical direction (Y direction) is the absorbent core 41.
  • the block region 411 is shorter than the length in the vertical direction (Y direction), and is biased toward the ventral side A of the absorbent core 41.
  • the intermediate sheet 5 of the diaper 1 is a rectangular sheet that is long in the vertical direction (Y direction). In the diaper 1, the intermediate sheet 5 is a rectangular sheet, but is not limited to the shape.
  • the intermediate sheet 5 of the diaper 1 extends from the ventral side A to the dorsal side B across the constricted part 41c of the absorbent core 41 as shown in FIGS. is doing. Further, in the diaper 1, as described above, the crotch portion C of the block region 411 that constitutes the absorbent core 41 is also bound inward, and the intermediate sheet 5 of the diaper 1 is connected to the crotch portion C of the block region 411. It extends also from the ventral part A (abdominal block area 411a) to the dorsal part B (dorsal block area 411b) across the constricted part.
  • the block region 411 of the diaper 1 includes the ventral block region 411a, the crotch block region 411c, and the dorsal block region 411b from the ventral portion A, as described above. Since it is continuously arranged in the longitudinal direction (Y direction) over the back side portion B, “the longitudinal direction of the intermediate sheet 5 (Y direction) is the longitudinal direction of the block region 411 of the absorbent core 41 ( "Shorter than the length in the Y direction” means that the intermediate sheet 5 is shorter than the total length in the longitudinal direction (Y direction) of the abdominal block area 411a, the crotch block area 411c, and the dorsal block area 411b. Means that. As shown in FIGS.
  • the intermediate sheet 5 is provided on the ventral side A side of the absorbent core 41, that is, the ventral side A of the block area 411 of the absorbent core 41 (the ventral block area 411a). ) Sideward and covers a part of the block area 411.
  • the block region 411 of the absorbent core 41 extends outward in the longitudinal direction (Y direction) from the intermediate sheet 5 in the back side portion B. A part of the back side portion B (back side block region 411b) is exposed.
  • a part of the ventral region A (abdominal block region 411 a) of the block region 411 is also exposed, but the back side B (back) of the block region 411 is exposed.
  • the exposed area of the block region 411b on the side is formed wider than the exposed area of the ventral portion A (the block region 411a on the ventral side) of the block region 411.
  • the absorbent core 41 has constricted portions 41 ea and 41 eb protruding inward at the corners of the front and rear end portions in the longitudinal direction (Y direction) in the diaper 1.
  • the ventral portion 411 a of the block region 411 is the widest position Wa in the ventral portion A of the absorbent core 41 and the outermost position. It extends outward beyond Ka.
  • the intermediate sheet 5 extends to the vicinity of the position Ka as shown in FIG. 5.
  • the intermediate sheet 5 of the diaper 1 exceeds the block region 411 and has both side portions along the vertical direction (Y direction) of the absorbent core 41.
  • the non-blocking region 412 located in each is reached.
  • the intermediate sheet 5 of the diaper 1 is formed to be shorter than the length of the absorbent core 41 in the horizontal direction (X direction) in the horizontal direction (X direction).
  • a side edge along (Y direction) is located on the non-blocking region 412 of the absorbent core 41.
  • the intermediate sheet 5 has side edges along the longitudinal direction (Y direction) at the abdominal side A, the crotch C, and the back side B, respectively.
  • the block region 411a on the side, the block region 411c between the crotch, and the block region 411b on the back side are respectively crossed and located on the non-block region 412 of the absorbent core 41.
  • the side edge along the longitudinal direction (Y direction) of the intermediate sheet 5 is located on the non-blocking region 412 also in the crotch portion C. 5 along the longitudinal direction (Y direction) extends beyond the non-blocking region 412, and along the longitudinal direction (Y direction) of the intermediate sheet 5 in each of the ventral side A and the back side B.
  • the side edge may be located on the non-blocking region 412.
  • the intermediate sheet 5 By arranging the intermediate sheet 5 at such a position, the rigidity in the width direction of the block region 411 becomes uniform, so that it is easy to bend evenly when compressed in the width direction, and due to the movement of the wearer's legs. There exists an effect which suppresses collapse of the shape of block field 411.
  • the total length in the vertical direction (Y direction) is preferably 250 mm or more and 550 mm or less
  • the total width in the horizontal direction (X direction) is preferably 50 mm or more and 200 mm or less.
  • the absorptive core 41 has a total width in the lateral direction (X direction) in the ventral portion A of 50 mm or more, preferably 70 mm or more, and 200 mm or less, preferably 150 mm or less, more specifically 50 mm or more and 200 mm or less. It is preferable that it is 70 mm or more and 150 mm or less.
  • the absorbent core 41 has a total width in the lateral direction (X direction) in the back side portion B of 50 mm or more, preferably 70 mm or more, and 200 mm or less, preferably 150 mm or less, more specifically 50 mm or more and 200 mm or less. It is preferable that it is 70 mm or more and 150 mm or less.
  • the absorbent core 41 has an overall width in the crotch portion C (X direction) of 25 mm or more, preferably 40 mm or more, and 115 mm or less, preferably 85 mm or less, more specifically 25 mm or more and 115 mm or less. It is preferable that it is 40 mm or more and 85 mm or less.
  • the total length is a value measured at the longest position, the full width is a value measured at the widest position in the ventral part A and the dorsal part B, and the narrowest position in the crotch part C. It is the value measured by.
  • the length in the longitudinal direction (Y direction) is 70% or more, preferably 85% or more of the total length in the Y direction of the absorbent core 41.
  • the length is 98% or less, preferably 95% or less, more specifically 70% or more and 98% or less, and more preferably 85% or more and 95% or less.
  • the length in the lateral direction (X direction) is 30% or more, preferably 50% or more of the entire width in the X direction of the absorbent core 41.
  • the length is 90% or less, preferably 70% or less, more specifically, the length is preferably 30% or more and 90% or less, and the length is 50% or more and 70% or less.
  • the length in the lateral direction (X direction) is 30% of the full width in the X direction of the ventral part A of the absorbent core 41. More preferably, the length is 50% or more, and 90% or less, preferably 70% or less, more specifically, 30% or more and 90% or less, preferably 50% or more. More preferably, the length is 70% or less.
  • the length in the longitudinal direction (Y direction) is 30 mm or more, preferably 50 mm or more, and 150 mm or less, preferably 120 mm or less, More specifically, it is preferably 30 mm or more and 150 mm or less, more preferably 50 mm or more and 120 mm or less, and the length in the lateral direction (X direction) is 40 mm or more, preferably 50 mm or more and 180 mm.
  • the length in the lateral direction (X direction) is 40 mm or more, preferably 50 mm or more and 180 mm.
  • it is preferably 130 mm or less, more specifically 40 mm or more and 180 mm or less, and more preferably 50 mm or more and 130 mm or less.
  • the length in the lateral direction (X direction) is 30% of the full width in the X direction of the back side portion B of the absorbent core 41. More preferably, the length is 50% or more, and 90% or less, preferably 70% or less, more specifically, 30% or more and 90% or less, preferably 50% or more. More preferably, the length is 70% or less.
  • the length in the longitudinal direction (Y direction) is 50 mm or more, preferably 70 mm or more, and 200 mm or less, preferably 150 mm or less, More specifically, it is preferably 50 mm or more and 200 mm or less, more preferably 70 mm or more and 150 mm or less, and the length in the lateral direction (X direction) is 40 mm or more, preferably 50 mm or more and 180 mm.
  • it is preferably 130 mm or less, more specifically 40 mm or more and 180 mm or less, and further preferably 50 mm or more and 130 mm or less.
  • the length in the longitudinal direction (Y direction) is 100 mm or more, preferably 150 mm or more, and 240 mm or less, preferably 220 mm or less. Specifically, it is preferably 100 mm or more and 240 mm or less, more preferably 150 mm or more and 220 mm or less, and the length in the lateral direction (X direction) is 20 mm or more, preferably 30 mm or more, and 100 mm or less. Preferably, it is 70 mm or less, more specifically, 20 mm or more and 100 mm or less, and more preferably 30 mm or more and 70 mm or less.
  • the length in the longitudinal direction (Y direction) is a value measured at the longest position
  • the length in the lateral direction (X direction) is the longest in the ventral portion A and the dorsal portion B. It is a value measured at the position, and in the crotch portion C, it is a value measured at the shortest position.
  • the length in the longitudinal direction (Y direction) at each end in the longitudinal direction (Y direction) is 2% of the total length in the Y direction of the absorbent core 41.
  • the length is preferably 10% or less.
  • the length in the longitudinal direction (Y direction) is preferably 5 mm or more and 40 mm or less.
  • the length in the vertical direction (Y direction) is a value measured at the widest position.
  • the length in the lateral direction (X direction) of each side portion along the longitudinal direction (Y direction) is the length of the absorbent core 41 in the ventral side portion A.
  • the length is preferably 5% or more and 30% or less of the entire width in the X direction of the ventral side A.
  • the back side portion B preferably has a length of 5% or more and 30% or less of the entire width in the X direction of the back side portion B of the absorbent core 41.
  • the non-blocking region 412 preferably has a length of 10 mm or more and 40 mm or less in the lateral direction (X direction) at the ventral side A, and the lateral direction (X direction) at the back side B.
  • the length is preferably 10 mm or more and 40 mm or less, and the length in the lateral direction (X direction) at the crotch portion C is preferably 10 mm or more and 30 mm or less.
  • the length in the lateral direction (X direction) in each of the ventral portion A and the dorsal side portion B is a value measured at the widest position, and the length in the lateral direction (X direction) in the crotch portion C is the largest. It is a value measured in a narrow position.
  • the length in the longitudinal direction (Y direction) is 20% or more, preferably 30% or more of the total length in the Y direction of the absorbent core 41.
  • the length is 80% or less, preferably 70% or less, more specifically 20% or more and 80% or less, and more preferably 30% or more and 70% or less.
  • the length in the vertical direction (Y direction) is 30% or more, preferably 40% or more, and 85% or less, preferably 75% or less of the total length of the block region 411 in the Y direction. More specifically, the length is preferably 30% or more and 85% or less, and more preferably 40% or more and 75% or less.
  • the length in the lateral direction (X direction) is 30% or more, preferably 40% or more of the total length in the X direction of the absorbent core 41.
  • the length is 90% or less, preferably 80% or less, more specifically 30% or more and 90% or less, and more preferably 40% or more and 80% or less. More preferably.
  • the length in the horizontal direction (X direction) is 100% or more, preferably 105% or more, and 150% or less, preferably 130% or less of the entire length of the block region 411 in the X direction. More specifically, the length is preferably 100% or more and 150% or less, and more preferably 105% or more and 130% or less.
  • the length in the longitudinal direction (Y direction) is 120 mm or more, preferably 150 mm or more, and 400 mm or less, preferably 300 mm or less. More specifically, it is preferably 120 mm or more and 400 mm or less, more preferably 150 mm or more and 300 mm or less, and the length in the lateral direction (X direction) is 45 mm or more, preferably 55 mm or more.
  • the length is 115 mm or less, preferably 85 mm or less, more specifically 45 mm or more and 115 mm or less, and more preferably 55 mm or more and 85 mm or less.
  • the length in the vertical direction (Y direction) is a value measured at the longest position
  • the length in the horizontal direction (X direction) is also a value measured at the widest position.
  • the intermediate sheet 5 is arranged biased toward the abdominal side A side of the absorbent core 41, and when used in the disposable diaper 1, the intermediate sheet 5 is disposed on the abdominal side A side in the longitudinal direction (Y direction).
  • the distance L5 between the edge and the edge of the absorbent core 41 in the longitudinal direction (Y direction) on the ventral side A side is the distance between the edge on the back side B in the longitudinal direction (Y direction) of the intermediate sheet 5 and absorption. It is narrower than the distance L6 from the edge of the core 41 on the back side B side in the longitudinal direction (Y direction).
  • the distance L5 is 10 mm or more, preferably 25 mm or more, and 70 mm or less, preferably 50 mm or less, more specifically 10 mm or more and 70 mm or less. More preferably, the distance L6 is 50 mm or more, preferably 70 mm or more, and 140 mm or less, preferably 120 mm or less, more specifically 50 mm. The thickness is preferably 140 mm or less, and more preferably 70 mm or more and 120 mm or less.
  • the convex portion 43 is formed in a rectangular shape that is long in the vertical direction (Y direction) in plan view, as shown in FIGS. 2 and 4.
  • the convex portion 43 is formed in a rectangular shape in plan view.
  • the four corners may have an arc shape, a polygonal shape, an ellipse, a combination thereof, or the like. .
  • the convex portion 43 of the diaper 1 has a length L1 in the longitudinal direction (Y direction) of 5 mm or more, preferably 15 mm or more, as shown in FIG.
  • the length is not more than 30 mm, preferably not more than 25 mm, more specifically not less than 5 mm and not more than 30 mm, more preferably not less than 15 mm and not more than 25 mm.
  • the length L2 in the lateral direction (X direction) is 3 mm or more, preferably 5 mm or more, and 20 mm or less, preferably 15 mm or less, more specifically 3 mm or more and 20 mm or less. It is preferable that it is 5 mm or more and 15 mm or less.
  • the lengths L1 and L2 are values measured at the widest position.
  • the groove 44 of the diaper 1 has a width L3 of a linear lateral groove 44X extending in the lateral direction (X direction) of 0.5 mm or more as shown in FIG.
  • the length is 1 mm or more, and 5 mm or less, preferably 3 mm or less, more specifically 0.5 mm or more and 5 mm or less, more preferably 1 mm or more and 3 mm or less. .
  • the width L4 of the linear vertical groove 44Y extending in the vertical direction (Y direction) is 0.5 mm or more, preferably 1 mm or more, and 5 mm or less, preferably 3 mm or less, more specifically. Is preferably from 0.5 mm to 5 mm, and more preferably from 1 mm to 3 mm.
  • the widths L3 and L4 are measured values at the position of the bottom of the recess in the concavo-convex structure of the absorber 4.
  • the horizontal grooves 44X and the vertical grooves 44Y are formed with the same depth, and the thickness of the groove portions 44 (the horizontal grooves 44X and the vertical grooves 44Y) is preferably 30% or more and 90% or less of the thickness of the convex portions 43.
  • the thickness of the groove 44 (lateral groove 44X, vertical groove 44Y) is 1.5 mm or more, preferably 2.5 mm or more, and 4.5 mm or less, preferably 4 mm or less.
  • it is preferably 1.5 mm or more and 4.5 mm or less, and more preferably 2.5 mm or more and 4 mm or less.
  • the thickness of the convex portion 43 is 2 mm or more, preferably 3 mm or more, and 8 mm or less, preferably 7 mm or less, more specifically 2 mm or more and 8 mm or less, more preferably 3 mm or more and 7 mm. More preferably, it is as follows.
  • the thickness of the non-blocking region 412 is the same as the thickness of the convex portion 43.
  • the thickness of the convex part 43, the groove part 44 (the horizontal groove 44X, the vertical groove 44Y), and the non-blocking region 412 is measured immediately after the sample is cut at a predetermined size and the measurement site is pressurized at 5 kPa for 10 minutes. I do.
  • the measurement location is 3 points or more including one or more of each of the abdominal side A, crotch portion C, and dorsal side B per sheet, and the average thickness of 2 diaper samples (6 measurement points or more) is given.
  • the diaper 1 is cut with a sharp razor in the vertical direction (Y direction) or the horizontal direction (X direction) shown in FIG. 2, and the cross section of the cut sample is measured.
  • the section of the cut sample may be observed and measured at a magnification of 20 to 100 times using, for example, a microscope (VHX-1000 manufactured by KEYENCE).
  • the groove 44 (lateral groove 44X, vertical groove 44Y) has a basis weight that is the basis weight of the protrusion 43, from the viewpoint of improving flexibility and absorbency. 20% or more, preferably 30% or more, and 80% or less, preferably 70% or less, more preferably 20% or more and 80% or less, more preferably 30% or more and 70%. More preferably, it is as follows. Specifically, the groove portion 44 (horizontal groove 44X, vertical groove 44Y) has a basis weight of 100 g / m 2 or more, preferably 150 g / m 2 or more, and 500 g / m 2 or less, preferably 400 g / m 2.
  • the convex portion 43 has a basis weight of 300 g / m 2 or more, preferably 350 g / m 2 or more, and 900 g / m 2 or less, preferably 800 g / m 2 or less, more specifically. the, is preferably 300 g / m 2 or more 900 g / m 2 or less, further preferably 350 g / m 2 or more 800 g / m 2 or less.
  • the basis weight of the non-blocking region 412 is the same as the basis weight of the convex portion 43.
  • the basic weight of the convex part 43 and the groove part 44 (the horizontal groove 44X, the vertical groove 44Y) is measured as follows.
  • region 412 is as follows.
  • the absorbent core 41 is cut using a feather blade razor along the boundary line between the convex portion 43 and the groove portion 44 (lateral groove 44X, vertical groove 44Y).
  • Ten small pieces of the convex portion 43 obtained by cutting were measured using an electronic balance (Electronic balance GR-300 manufactured by A & D, accuracy: 4 digits after the decimal point), and the average weight of one small piece of the convex portion 43 was measured.
  • an electronic balance Electronic balance GR-300 manufactured by A & D, accuracy: 4 digits after the decimal point
  • the basis weight of the convex portion 43 is calculated by dividing the obtained average weight by the average area per piece of the convex portion 43.
  • the basis weight of the non-block region 412 is calculated in the same manner as the basis weight of the convex portion 43.
  • the length is 100 mm, and the width matches the design dimension of the width of the groove portion 44 (vertical groove 44Y).
  • each of the 5 pieces obtained was measured using an electronic balance (Electronic balance GR-300 manufactured by A & D, accuracy: 4 digits after the decimal point), and averaged, the average weight of one piece of the groove 44 (vertical groove 44Y).
  • Ask for. The basis weight of the groove 44 (vertical groove 44Y) is calculated by dividing the obtained average weight by the average area per piece of the groove 44 (vertical groove 44Y).
  • the basis weight of the groove 44 (lateral groove 44X) is calculated in the same manner as the groove 44 (vertical groove 44Y).
  • the convex part 43 and the non-blocking region 412 are formed to be substantially the same or denser than the groove part 44 (lateral groove 44X, vertical groove 44Y).
  • the groove 44 (lateral groove 44X, vertical groove 44Y) has a density of 50% or more of the density of the convex portion 43 from the viewpoint of improving liquid diffusibility. Preferably it is 75% or more and 100% or less, preferably 95% or less, more specifically 50% or more and 100% or less, more preferably 75% or more and 95% or less. Is more preferable.
  • the groove 44 (lateral groove 44X, longitudinal grooves 44Y), the density, 0.05 g / cm 3 or higher, preferably 0.07 g / cm 3 or more, and, 0.15 g / cm 3 or less, preferably preferably is 0.13g / cm 3 or less, and more specifically, is preferably not more than 0.05 g / cm 3 or more 0.15g / cm 3, 0.07g / cm 3 or more 0.13g / Cm 3 or less is more preferable.
  • the convex portion 43 its density, 0.05 g / cm 3 or higher, preferably 0.07 g / cm 3 or more, and, 0.15 g / cm 3 or less, is preferably 0.13 g / cm 3 or less it is preferable, more specifically, it is more preferably preferably not more than 0.05 g / cm 3 or more 0.15 g / cm 3, or less 0.07 g / cm 3 or more 0.13 g / cm 3 .
  • the density of the non-blocking region 412 is the same as the density of the convex portions 43.
  • the density of the convex portion 43, the non-blocking region 412 and the groove portion 44 is the same as the basis weight of the convex portion 43, the non-blocking region 412 and the low density portion 44 obtained by the above-described method. It is calculated by dividing by each thickness obtained by the above.
  • the convex portion 43 and the groove portion 44 (the horizontal groove 44 ⁇ / b> X and the vertical groove 44 ⁇ / b> Y) of the absorbent core 41 are integrally formed, and the non-block region 412 is also formed of the convex portion 43 and the groove portion 44. It is integrally formed with the groove 44 (lateral groove 44X, vertical groove 44Y).
  • “being integrally formed” means that the convex portion 43, the groove portion 44 (the horizontal groove 44X, the vertical groove 44Y) and the non-blocking region 412 are not separated from each other without using a bonding means such as an adhesive or heat fusion. It means that they are integrated so that they are integrally formed from the same material.
  • region 412 are integrally molded, it will have continuity which a bodily fluid can move smoothly. A method for manufacturing such an absorber 4 will be described later.
  • corrugation of the absorbent core 41 is mainly formed of the groove part 44 (the horizontal groove 44X, the vertical groove 44Y), and the block of the absorbent core 41
  • the convex portion protruding to the back sheet 3 side in the structure 400 is mainly formed by the convex portion 43 and the non-blocking region 412.
  • the concave portion is mainly formed by the groove portion 44” means, for example, the case where the convex portion 43 near the boundary between the groove portion 44 and the convex portion 43 forms a part of the concave portion.
  • the convex portion is mainly formed by the convex portion 43 and the non-blocking region 412” means that the groove portion 44 near the boundary between the convex portion 43 and the groove portion 44 forms a part of the convex portion, for example. It means to include.
  • the groove part 44 is unevenly distributed in the surface sheet 2 side (the skin opposing surface side of the absorber 4) in the thickness direction T of the diaper 1, as shown in FIG. ing. 3 and 4, the absorbent core 41 of the diaper 1 has a block structure 400 with an uneven surface on the non-skin facing surface side of the absorbent core 41, and the skin facing surface side of the absorbent core 41 is flat. Yes.
  • a space 9 is formed between the groove portion 44 (lateral groove 44 ⁇ / b> X, vertical groove 44 ⁇ / b> Y) of the absorbent core 41 and the covering material 42. That is, in the absorbent body 4, a space 9 is formed that is formed by the uneven block structure 400 of the absorbent core 41 and the covering material 42 that wraps the absorbent core 41.
  • the grooves 44 (lateral grooves 44 ⁇ / b> X, vertical grooves 44 ⁇ / b> Y) are latticed on the back sheet 3 (non-skin facing surface) side of the absorbent core 41 as a whole.
  • the protrusions 43 are arranged at the positions of the grids, and the grooves 44 (lateral grooves 44X, vertical grooves 44Y) are formed so as to surround the protrusions 43. Accordingly, in the diaper 1, as shown in FIGS. 2 and 5, a plurality of spaces 9 ⁇ / b> X formed by the lateral grooves 44 ⁇ / b> X recessed on the top sheet 2 side and the covering material 42 are formed in the lateral direction (X A plurality of spaces 9Y formed by the longitudinal grooves 44Y and the covering material 42 that are continuously extended in the direction (direction) and recessed on the surface sheet 2 side correspond to the longitudinal grooves 44Y in the longitudinal direction (Y direction), respectively. It extends continuously.
  • the absorbent core 41 and the covering material 42 that wraps the absorbent core 41 are fixed through an adhesive to form the absorbent body 4. Further, the covering material 42 and the intermediate sheet 5 are fixed by an adhesive 5h. And the absorber 4 is being fixed to the surface sheet 2 with the adhesive agent via the intermediate sheet 5 fixed with the adhesive agent 5h, and is being fixed to the back surface sheet 3 via the adhesive agent.
  • the adhesive 5 h that fixes the covering 42 of the absorbent body 4 and the intermediate sheet 5, as shown in FIG. 3 and FIG. It is applied in a straight line in the longitudinal direction (Y direction) so as to be longitudinally cut in the Y direction), and is applied intermittently in the lateral direction (X direction) of the diaper 1.
  • the adhesive 5h is not arranged on the vertical groove 44Y of the absorbent core 41 in the lateral direction (X direction) in a cross-sectional view as shown in FIG. 3, and as shown in FIG.
  • the group of convex portions 43 formed by a plurality of convex portions 43 arranged intermittently in the vertical direction (Y direction) a straight line is formed so as to cross each convex portion 43 in the vertical direction (Y direction). It is coated on.
  • the adhesive 5h is applied on a group of convex portions 43 that are intermittently arranged in the lateral direction (X direction) in a cross-sectional view as shown in FIG.
  • the adhesive 5h of the diaper 1 is formed on the non-blocking region 412 located on both sides along the vertical direction (Y direction) as shown in FIGS. Is also applied in a straight line.
  • the adhesive 5h is applied, for example, intermittently in the horizontal direction (X direction) and in a straight line in the vertical direction (Y direction) using a coater. It is being crafted.
  • the coating width of each adhesive 5h is preferably 0.5 mm or more and 5 mm or less.
  • the basis weight of the application of the adhesive 5h is 0.1 g / m 2 or more, preferably 0.2 g / m 2 or more, and 15 g / m 2 or less, preferably 10 g / m 2 or less, More specifically, it is preferably 0.1 g / m 2 or more and 15 g / m 2 or less, and more preferably 0.2 g / m 2 or more and 10 g / m 2 or less.
  • the diaper 1 has a pair of three-dimensional gathers 6 and 6 on both sides along the vertical direction (Y direction).
  • the fixing position 62h between the three-dimensional gather forming sheet 62 and the top sheet 2 forming each three-dimensional gather 6 is out of the intermediate sheet 5 in the vertical direction (Y direction) as shown in FIG. 2 and on the non-blocking regions 412 located on both side portions along the longitudinal direction (Y direction) of the absorbent core 41, as shown in FIG.
  • the fixing position 62 h is not the fixing position between the sheet for forming a three-dimensional gather 62 and the top sheet 2, which is outside the width direction (X direction) of the absorber 4, and at least a part of the fixing position is absorptive. This is a fixed position provided at the end on the back side B in the vertical direction (Y direction) on the core 41. As described above, in the longitudinal direction (Y direction), the fixing position 62h between the three-dimensional gather forming sheet 62 and the top sheet 2 is arranged on the absorbent core 41 where the intermediate sheet 5 is not present.
  • the absorbent core 41 extending outward in the longitudinal direction (Y direction) than the intermediate sheet 5 is easily bent in the longitudinal direction (Y direction) when wearing a diaper, and thus in the lateral direction.
  • the fixed position 62h is arranged on the non-blocking regions 412 located on both sides of the absorbent core 41, so that the block region of the absorbent core 41 extending outward is provided. It becomes easy to form a ridge along the horizontal groove 44X of 411, and leakage of soft stool or the like can be prevented.
  • FIG. 6 shows an embodiment of a method for manufacturing the absorbent body 4 and a manufacturing apparatus used therefor.
  • the manufacturing apparatus of the absorbent body 4 includes a rotary drum 50 that is rotationally driven in the direction of arrow R1, and a duct 60 that supplies an absorbent material 45 containing an absorbent polymer that is a raw material of the absorbent core 41 to the outer peripheral surface of the rotary drum 50.
  • the transfer roll 70 disposed obliquely below and downstream of the rotary drum 50 and driven to rotate in the direction of the arrow R2, and the vacuum box 65 disposed between the duct 60 and the transfer roll 70 in the circumferential direction of the rotary drum 50
  • a mesh belt 75 that is a sheet-like air-permeable member disposed between the vacuum box 65 and the rotary drum 50 and between the transfer roll 70 and the rotary drum 50, and below the transfer roll 70.
  • a vacuum conveyor 80 is provided.
  • the rotating drum 50 has a cylindrical shape, and receives power from a motor such as a motor, so that members forming the outer peripheral surface rotate around a horizontal axis.
  • a space 56 capable of depressurizing the inside is formed in a non-rotating portion inside the rotating drum 50 (on the rotating shaft side).
  • a known exhaust device such as an intake fan is connected to the space 56, and the interior of the space 56 can be maintained at a negative pressure by operating the exhaust device.
  • piping capable of taking in air outside the apparatus is connected to the spaces 57 and 58 on the inner side (rotating shaft side) of the rotating drum 50.
  • a plurality of drum recesses 51 having a shape corresponding to the shape of the absorbent core 41 to be manufactured are formed on the outer peripheral surface of the rotary drum 50 at equal intervals in the R1 direction.
  • a mesh plate 52 in which a large number of pores are formed and a metal or resin impermeable member 53 are arranged on the bottom surface of each drum recess 51.
  • the air-impermeable member 53 is provided so as to protrude on the mesh plate 52, and is disposed so as to correspond to the shape and position of the above-described groove 44 (lateral groove 44X, vertical groove 44Y).
  • a region 55 consisting only of the mesh plate 52 in the entire outer periphery of the portion is a portion corresponding to the non-blocking region 412.
  • the part of the outer peripheral surface of the rotating drum 50 in which the drum recessed part 51 is not formed consists of the frame body of the rotating drum 50 which consists of metal rigid bodies, and is non-breathable.
  • one end side of the duct 60 covers the outer peripheral surface of the rotary drum 50 positioned on the space 56 maintained at a negative pressure, and the other end side (not shown) has a fiber material introduction device.
  • the fiber material introducing device includes, for example, a pulverizer that crushes sheet-like wood pulp into defibrated pulp and sends the defibrated pulp (fiber material) into the duct, and introduces an absorbing polymer into the duct 60
  • An absorbent polymer introduction part is provided.
  • the transfer roll 70 has a cylindrical outer peripheral portion having air permeability, and receives the power from a prime mover such as a motor and the outer peripheral portion rotates in the R2 direction.
  • a prime mover such as a motor
  • the outer peripheral portion rotates in the R2 direction.
  • a space 71 that can be depressurized is formed in the non-rotating portion on the inner side (rotating shaft side) of the transfer roll 70.
  • a known exhaust device such as an intake fan is connected to the space 71, and the interior of the space 71 can be maintained at a negative pressure by operating the exhaust device.
  • the vacuum box 65 is disposed between the downstream end 601 of the duct 60 and the transfer roll 70 in the rotation direction R1 of the rotary drum 50.
  • the vacuum box 65 has a box-like shape, and has an opening that opens in the direction of the rotating drum 50 at a portion facing the rotating drum 50.
  • the vacuum box 65 is connected to a known exhaust device (not shown) such as an intake fan via an exhaust pipe 67, and the inside of the vacuum box 65 can be maintained at a negative pressure by the operation of the exhaust device. .
  • the mesh belt 75 is a belt-shaped breathable belt having a mesh connected endlessly, and is continuously guided along a plurality of free rolls and transfer rolls 70 to move along a predetermined route.
  • the mesh belt 75 is driven by the rotation of the transfer roll 70. While the mesh belt 75 passes in front of the opening of the vacuum box 65, the mesh belt 75 is in contact with the outer peripheral surface of the rotary drum 50, and the transfer roll 70 and the rotary drum 50 are closest to each other. In the vicinity of the portion, the transfer drum 70 moves away from the outer peripheral surface of the rotating drum 50.
  • the vacuum conveyor 80 includes an endless breathable belt 83 that is stretched between the drive roll 81 and the driven roll 82, and a vacuum box 84 that is disposed at a position facing the transfer roll 70 with the breathable belt 83 interposed therebetween. ing.
  • the exhaust device connected to each of the space 56 in the rotary drum 50 and the vacuum box 65 is operated to make negative pressure. This is because the negative pressure in the space 56 causes an air flow that conveys the absorbent material 45 to the outer peripheral surface of the rotary drum 50 in the duct 60.
  • the rotating drum 50 and the transfer roll 70 are rotated, and the vacuum conveyor 80 is operated.
  • the fiber material introducing device is operated to supply the defibrated pulp (fiber material) and the absorbing polymer into the duct 60.
  • the absorbent material 45 While the portion covered with the duct 60 is being conveyed, the absorbent material 45 is sucked into the drum recess 51 of the rotary drum 50. As shown in FIG. 8, the absorbent material 45 is gradually deposited on the mesh plate 52 in each region 54 and region 55 of the drum recess 51. In the deposit 46 obtained in this way, a portion (a portion corresponding to the breathable member 53) 46a formed by depositing the absorbent material 45 on the breathable member 53 has a relatively large deposit amount of the absorbent material 45. The other portion (corresponding to the region 54) 46b and the portion (corresponding to the region 55) 46c have a relatively large amount of the absorbent material 45 deposited, and the entire deposit 46 has an uneven block structure. To have.
  • the deposit 46 in the drum concave portion 51 is sucked to the mesh belt 75 by the suction from the vacuum box 65. It becomes.
  • the deposit 46 in the drum recess 51 is conveyed to a position immediately before the closest portion between the transfer roll 70 and the rotary drum 50, and is sucked from the transfer roll 70 side in the vicinity of the closest portion to the mesh belt.
  • the mold is released from the drum recess 51 while being sucked by 75 and moved onto the transfer roll 70.
  • the deposit 46 having the block structure transferred onto the transfer roll 70 together with the mesh belt 75 is adsorbed to the mesh belt 75 on the transfer roll 70 while being transferred to the vacuum conveyor 80 (the lowermost end of the transfer roll 70). And is transferred to the vacuum conveyor 80 by suction by the vacuum box 84 at the delivery section.
  • a covering material 42 made of tissue paper or a hydrophilic nonwoven fabric is introduced onto the vacuum conveyor 80 before the deposit 46 is placed. Then, the deposit 46 moves on the covering material 42. Further, after the covering material 42 is folded by a folded plate (not shown) and the deposit 46 is wrapped with the covering material 42, the deposit 46 in the state wrapped with the covering material 42 is cut at a predetermined interval. Thus, the absorber precursor 49 cut to the size of one absorber is continuously manufactured.
  • the pressurizing unit 90 includes a pair of rolls 91 and 92 having at least one smooth surface, and pressurizes an object to be pressed introduced between the rolls 91 and 92 from above and below the thickness. It is configured to be compressible in the direction.
  • the portion is compressed more strongly than the portion 46a having a small thickness (corresponding to the breathable member 53).
  • the portion (region 54 corresponding portion) 46b (convex portion) and the portion (region 55 corresponding portion) 46c of the deposit 46 are included.
  • the relatively dense convex portions 43 and the non-blocking region 412 are formed, and the portion (corresponding portion of the breathable member 53) 46a (concave portion) in the deposit 46 is relatively in the absorbent core 41.
  • the groove portions 44 (lateral grooves 44X, vertical grooves 44Y) having a low density are formed.
  • any sheet can be used without particular limitation as long as it is normally used for absorbent articles such as disposable diapers.
  • a liquid-permeable nonwoven fabric, a perforated film, a laminate of these, and the like can be used as the surface sheet 2.
  • a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used as the back sheet 3.
  • a stretchable film, a nonwoven fabric, a woven fabric, or a laminated sheet thereof can be used.
  • the fastening tape 7 can be used without particular limitation as long as it is usually used for absorbent articles such as disposable diapers.
  • male members in “Magic Tape (registered trademark)” manufactured by Kuraray Co., Ltd.
  • “Quicklon (registered trademark)” manufactured by YKK
  • “Majikurosu (registered trademark)” manufactured by Kanebo Bell Touch
  • the absorptive core 41 that constitutes the absorbent body 4 a structure in which absorbent polymer particles are held in an aggregate of fibers such as pulp fibers can be used.
  • a hydrophilic sheet for example, a core-wrap sheet made of a water-permeable thin paper (tissue paper) or a water-permeable nonwoven fabric can be used.
  • the leg elastic member 63 and the waist elastic member 64 natural rubber, polyurethane, polystyrene-polyisoprene copolymer, polystyrene-polybutadiene copolymer, polyethylene such as ethyl acrylate-ethylene, etc.
  • a thread-like stretchable material made of - ⁇ olefin copolymer or the like can be used.
  • any adhesive can be used without particular limitation as long as it is usually used for absorbent articles such as disposable diapers.
  • a hot melt adhesive can be used.
  • hot melt adhesives include blocks such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-styrene copolymer (SEBS).
  • SIS styrene-isoprene-styrene block copolymer
  • SBS styrene-butadiene-styrene block copolymer
  • SEBS styrene-ethylene-butylene-styrene copolymer
  • the intermediate sheet 5 can be used without particular limitation as long as it is usually used for absorbent articles such as disposable diapers.
  • the sheet is preferably 90% by mass or more, and examples of the sheet include paper, nonwoven fabric, and web.
  • the paper sheet dry pulp can be used.
  • the nonwoven fabric sheet a spunlace nonwoven fabric, a spunbond nonwoven fabric, an air-through nonwoven fabric, a resin bond nonwoven fabric, or an airlaid nonwoven fabric can be used. From the viewpoint of liquid permeability, an air-through nonwoven fabric is preferable.
  • the basis weight of the intermediate sheet 5 is preferably 15 g / m 2 or more and 100 g / m 2 or less.
  • the diaper 1 has the block area
  • the intermediate sheet 5 of the diaper 1 is longer in the longitudinal direction (Y direction) than in the longitudinal direction (Y direction) of the block region 411 of the absorbent core 41. It is short and is arranged biased toward the ventral side A of the absorbent core 41. In this way, the intermediate sheet 5 is arranged on the abdominal side A, which is likely to be deformed due to a change in the wearer's movement and posture, thereby increasing the strength of the swollen absorbent body after absorbing body fluid and enhancing the shape retention. be able to. Furthermore, by providing the intermediate sheet 5, body fluid is diffused and uniformly absorbed by the absorbent body 4, and it is difficult to form a boundary between the dry region and the wet region of the absorbent body 4, which is liable to crack, and shape retention Can be increased.
  • the diaper 1 has a non-blocking region 412 that surrounds the outer periphery of the blocking region 411. Therefore, the diaper 1 can absorb body fluid slowly and repeatedly urinate. Also, the absorbability of the absorbent core 41 can be improved, and body fluid leakage from the absorbent core 41 can be prevented.
  • the diaper 1 has the intermediate sheet 5 straddling the constricted portion 41 c of the absorbent core 41 in the longitudinal direction (Y direction) from the ventral side A to the dorsal side B. It extends to. Moreover, in the diaper 1, the intermediate sheet 5 is straddling the constricted part of the crotch part C of the block region 411, from the ventral side A (the ventral block region 411a) to the dorsal side B (the dorsal block region 411b). It also extends. Therefore, the fragility of the absorbent body 4 in the movable range of the wearer's leg at the time of wearing can be improved, and the shape retainability can be enhanced.
  • the diaper 1 has both sides along the longitudinal direction (Y direction) of the absorbent core 41, with the intermediate sheet 5 exceeding the block region 411 in the lateral direction (X direction). It reaches the non-blocking region 412 located in each part, and the side edge along the longitudinal direction (Y direction) of the intermediate sheet 5 is located on the non-blocking region 412 of the absorbent core 41. Therefore, since the rigidity in the width direction (X direction) of the crotch portion C of the absorbent core 41 tends to be uniform, the diaper 1 is easily bent evenly when being compressed in the lateral direction (X direction).
  • the absorbent article of the present invention is not limited to the disposable diaper 1 of the present embodiment described above, and can be appropriately changed.
  • a plurality of block structures 400 are continuously arranged in the vertical direction (Y direction) from the abdominal side A to the back side B.
  • the block region 411 is formed, but it may not be arranged continuously.
  • the abdominal block area 411a, the crotch block area 411c, and the dorsal block area 411b may not be arranged continuously.
  • the absorbent core 41 has a concavo-convex structure on the non-skin facing surface side and is flat on the skin facing surface side as shown in FIGS.
  • the non-skin facing surface side may be flat.
  • the absorbent core 41 has the constricted portions 41 ea and 41 eb at the corners of the front and rear end portions in the longitudinal direction (Y direction). It may not have.
  • the groove portion 44 of the absorbent core 41 constituting the absorbent body 4 includes a linear horizontal groove 44 ⁇ / b> X extending in the horizontal direction (X direction) and a vertical length.
  • the linear vertical grooves 44Y extending in the direction (Y direction) are formed in a lattice shape as a whole, but are not limited to the lattice shape.
  • both the absorbent core 41 and the block region 411 have a constricted portion in the crotch portion C, but both the constricted portions are present. It does not need to be, and either one may have.
  • absorbent cores 41A to 41C shown in FIGS. 9 to 11 may be provided.
  • the explanation in detail regarding the absorbent core 41 included in the diaper 1 described above is applied as appropriate, unless otherwise explained. 9 to 11, the same members as those in FIG. 5 are denoted by the same reference numerals.
  • the absorbent core 41A has a constricted portion 41c, but the block region 411 does not have a constricted portion, and is simply formed in a rectangular shape that is long in the vertical direction (Y direction). May be. More specifically, the block region 411 of the absorbent core 41A shown in FIG. 9 will be described. Five convex portions 43 partitioned by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction). The block structure is formed by regularly arranging 14 rows in the vertical direction (Y direction) from the abdominal side A to the back side B. In the block region 411 of the absorbent core 41 ⁇ / b> A shown in FIG. 9, six longitudinal grooves 44 ⁇ / b> Y extending in the longitudinal direction (Y direction) are linearly arranged from the ventral side A to the back side B, respectively. ing.
  • the block region 411b on the back side has four convex portions 43 that are partitioned by the vertical grooves 44Y and the horizontal grooves 44X regularly arranged in the horizontal direction (X direction).
  • the block structure formed is regularly arranged in four rows in the vertical direction (Y direction).
  • the block area 411c between the crotch has a block structure in which three convex portions 43 are regularly arranged in the horizontal direction (X direction), and regularly in the vertical direction (Y direction). Seven rows are arranged. Further, as shown in FIG.
  • the block region 411a on the ventral side has a block structure in which four convex portions 43 partitioned by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction). The four rows are regularly arranged in the vertical direction (Y direction).
  • the low basis weight portion 44Y extending in any longitudinal direction (Y direction) is also linear from the ventral side A to the back side B. Not arranged.
  • the absorbent core 41C in the block region 411b on the back side, five convex portions 43 defined by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction).
  • the block structure is regularly arranged in three rows in the vertical direction (Y direction), and the block structure in which four convex portions 43 are regularly arranged in the horizontal direction (X direction) is regularly arranged in the vertical direction ( One line is formed in the (Y direction).
  • the crotch block region 411c has a block structure in which three convex portions 43 partitioned by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction).
  • the block region 411a on the ventral side has a block structure in which four convex portions 43 partitioned by the vertical grooves 44Y and the horizontal grooves 44X are regularly arranged in the horizontal direction (X direction).
  • a block structure in which one row is regularly arranged in the vertical direction (Y direction) and five protrusions 43 are regularly arranged in the horizontal direction (X direction) is regularly arranged in the vertical direction (Y direction). It is lined up and formed.
  • the vertical groove 44Y extending in any vertical direction (Y direction) is also arranged linearly from the ventral side A to the back side B. Not.
  • the above-mentioned diaper 1 is an unfolded disposable diaper as shown in FIG. 2, it may be a pants-type disposable diaper.
  • the following absorbent articles are disclosed regarding the embodiment described above.
  • ⁇ 1> A surface sheet disposed on the skin facing surface side, a back sheet disposed on the non-skin facing surface side, and a vertically long absorbent body disposed between the two sheets.
  • Absorption having a ventral part located on the side, a dorsal part located on the dorsal side and a crotch part located between them, and having a liquid-permeable intermediate sheet between the absorbent body and the top sheet
  • the absorbent body has an absorbent core containing an absorbent polymer;
  • the absorbent core has a plurality of convex portions having a relatively high basis weight and a block structure including a groove portion having a relatively low basis weight surrounding each convex portion, extending from the ventral side to the back side.
  • the intermediate sheet covers a part of the block region of the absorbent core, and the length of the intermediate sheet in the longitudinal direction is shorter than the length of the block region of the absorbent core in the longitudinal direction.
  • the absorbent core has a constricted portion that is constricted inward at the crotch portion
  • the intermediate sheet is the absorbent article according to ⁇ 1>, wherein the intermediate sheet extends from the abdominal side part to the back side part across the constricted part of the absorbent core in the longitudinal direction.
  • the absorbent core has a non-block region surrounding the outer periphery of the block region, The absorption according to ⁇ 1> or ⁇ 2>, wherein the intermediate sheet extends in the lateral direction beyond the block region and reaches non-block regions located on both sides along the longitudinal direction of the absorbent core. Sex goods.
  • the absorbent body has a covering material that wraps the absorbent core, and the covering material and the intermediate sheet are fixed by an adhesive,
  • the adhesive is applied in a straight line in the vertical direction so as to cut the convex portions constituting the block region in the vertical direction, and is applied intermittently in the horizontal direction of the absorbent article.
  • the absorbent article according to any one of ⁇ 1> to ⁇ 3>.
  • the absorbent article has a pair of three-dimensional gathers on both sides along the vertical direction, In the back side portion, the fixed positions of the three-dimensional gather forming sheet and the top sheet that form each of the three-dimensional gathers are both longitudinally outward from the intermediate sheet and both sides along the longitudinal direction of the absorbent core.
  • ⁇ 6> The absorbent article according to ⁇ 4>, wherein the absorbent core is wrapped so that both side portions of the one covering material are folded and the side edge portions of the covering material are overlapped.
  • the absorbent core has a constricted portion that is constricted inwardly at the crotch portion, and the absorbent core has left and right side edges on the abdominal side and left and right side edges on the back side. Extending laterally outward from both side edges, the overall width at the ventral side is wider than the overall width at the back side, and the overall width at the constricted part located at the crotch is the narrowest,
  • the absorbent article has a shape in which the left and right side edges of the crotch portion are curved in an arc shape inward in the lateral direction, and the crotch portion, which is the central portion in the longitudinal direction as a whole, is constricted inward.
  • the groove portion of the absorbent core includes a vertical groove extending in the vertical direction and a horizontal groove extending in the horizontal direction, and the block structure in the block region of the absorbent core has the vertical groove extending in the vertical direction.
  • the longitudinal groove constituting the groove portion extends in parallel to the longitudinal direction, is a curved line extending in the longitudinal direction, or extends at an inclination, and the transverse groove constituting the groove portion is The absorbent article according to ⁇ 8>, wherein the absorbent article extends in parallel to the lateral direction but is a curved line extending in the lateral direction or extending in an inclined manner.
  • the block region also exposes a part of the dorsal side and a part of the ventral side, and the exposed area of the dorsal side of the block region is the exposed area of the ventral side of the block region.
  • the block region has a length in the vertical direction of 70% or more and 98% or less of the total length in the vertical direction of the absorbent core, or a length of 85% or more and 95% or less.
  • the block region has a lateral length of 30% or more and 90% or less of the entire lateral width of the absorbent core, or a length of 50% or more and 70% or less.
  • the ventral part of the block region has a length in the lateral direction of 30% or more and 90% or less of the entire lateral width of the ventral part of the absorbent core, or 50%.
  • the back side of the block region has a length in the lateral direction of 30% or more and 90% or less of the full width in the lateral direction of the back side of the absorbent core, or 50%.
  • the absorbent article according to any one of ⁇ 1> to ⁇ 14> which has a length of 70% or more and 70% or less.
  • the intermediate sheet has a length in the longitudinal direction of 20% or more and 80% or less of the total length in the longitudinal direction of the absorbent core, or a length of 30% or more and 70% or less.
  • the intermediate sheet has a length in the vertical direction of 30% or more and 85% or less, or a length of 40% or more and 75% or less of the total length in the vertical direction of the block region.
  • the intermediate sheet has a length in the horizontal direction of 30% or more and 90% or less of a total length in the horizontal direction of the absorbent core, or a length of 40% or more and 80% or less.
  • the intermediate sheet has a length in the horizontal direction of 100% or more and 150% or less of a total length in the horizontal direction of the block region, or a length of 105% or more and 130% or less.
  • the horizontal groove and the vertical groove of the groove part are formed at the same depth, and the thickness of the groove part is 30% or more and 90% or less of the thickness of the convex part. Absorbent articles.
  • ⁇ 21> Any one of the above ⁇ 1> to ⁇ 20>, wherein the groove portion has a basis weight of 20% to 80% of the basis weight of the convex portion, or 30% to 70%.
  • ⁇ 22> The absorbent article according to any one of ⁇ 3> to ⁇ 21>, wherein the convex portion and the non-blocking region are formed at a higher density than the groove portion.
  • the groove portion has a density of 50% or more and 100% or less of a density of the convex portion, or 75% or more and 95% or less of any one of ⁇ 1> to ⁇ 22>.
  • ⁇ 24> Any one of the items ⁇ 3> to ⁇ 23>, wherein the convex portion and the groove portion of the absorbent core are integrally formed, and the non-blocking region is also integrally formed with the convex portion and the groove portion.
  • ⁇ 26> The absorbent article according to ⁇ 4>, wherein a space is formed between the groove portion of the absorbent core and the covering material.
  • the groove is formed in a lattice shape as a whole on the back sheet side of the absorbent core, and the convex portion is arranged at the position of the lattice, so that the groove portion surrounds the convex portion.
  • ⁇ 28> A plurality of the spaces formed by the lateral grooves and the covering material that are recessed toward the top sheet side continuously extend in the lateral direction corresponding to the lateral grooves, and are recessed toward the top sheet side.
  • a core in which absorbent polymer particles are held in an aggregate of fibers such as pulp fibers is used, and the covering material constituting the absorbent body is hydrophilic.
  • a core wrap sheet made of a water-permeable sheet, a water-permeable thin paper (tissue paper), or a water-permeable nonwoven fabric is used.
  • the absorbent article includes the elastic member for forming the three-dimensional gather, the leg elastic member, and the waist elastic member, and the elastic member for forming the three-dimensional gather, the leg elastic member, and the waist elastic member.
  • the absorbent article according to any one of 29>.
  • ⁇ 31> An adhesive used for fixing the covering material and the intermediate sheet, an adhesive used for fixing the absorbent core and the covering material, and used for fixing the absorbent body to the top sheet or the back sheet.
  • a hot melt adhesive can be used, and as the hot melt adhesive, Block copolymer hot melt adhesives such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-styrene copolymer (SEBS)
  • SIS styrene-isoprene-styrene block copolymer
  • SBS styrene-butadiene-styrene block copolymer
  • SEBS styrene-ethylene-butylene-styrene copolymer
  • a sheet mainly composed of hydrophilic fibers is used, and as a sheet mainly composed of the hydrophilic fibers, a paper sheet, a nonwoven fabric, and a web are used.
  • a paper sheet dry pulp is used, and as the nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, an air-through nonwoven fabric, a resin bond nonwoven fabric, or an airlaid nonwoven fabric is used.
  • ⁇ 33> The absorbent article according to any one of ⁇ 1> to ⁇ 32>, wherein the absorbent article is a deployable disposable diaper.
  • ⁇ 34> The absorbent article according to any one of ⁇ 1> to ⁇ 32>, wherein the absorbent article is a pants-type disposable diaper.
  • the absorbability of the bodily fluid in use is improved, the flexibility of the entire absorbent body is improved, and the shape retention of the absorbent body after absorbing the bodily fluid is improved.

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

L'invention concerne une couche (1), qui comprend une feuille avant (2), une feuille arrière (3) et un élément absorbant (4) rectangulaire disposé entre les deux feuilles (2, 3), et comprend une feuille inter-couches perméable aux liquides (5) disposée entre l'élément absorbant (4) et la feuille avant (2). L'élément absorbant (4) a un noyau absorbant (41). Le noyau absorbant (41) a une région de bloc (411) dans laquelle une pluralité de structures de bloc (400) comprenant des convexités (43) de poids de base élevé et des rainures (44) de poids de base faible sont disposées dans la direction longitudinale s'étendant d'une section ventrale (A) à une section dorsale (B). Les convexités (43) et les rainures (44) du noyau absorbant (41) sont moulées d'un seul tenant, et la feuille inter-couches (5) recouvre partiellement les régions de bloc du noyau absorbant, la feuille inter-couches étant plus courte dans la direction longitudinale (direction Y) que les régions de bloc (411) du noyau absorbant (41). La feuille inter-couches (5) est disposée de façon déviée par rapport au côté section ventrale (A) du noyau absorbant (41).
PCT/JP2013/065273 2012-06-11 2013-05-31 Article absorbant WO2013187265A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU2014154004A RU2643124C2 (ru) 2012-06-11 2013-05-31 Впитывающее изделие
CN201380030882.XA CN104363869B (zh) 2012-06-11 2013-05-31 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-131882 2012-06-11
JP2012131882A JP5593350B2 (ja) 2012-06-11 2012-06-11 吸収性物品

Publications (1)

Publication Number Publication Date
WO2013187265A1 true WO2013187265A1 (fr) 2013-12-19

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PCT/JP2013/065273 WO2013187265A1 (fr) 2012-06-11 2013-05-31 Article absorbant

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JP (1) JP5593350B2 (fr)
CN (1) CN104363869B (fr)
RU (1) RU2643124C2 (fr)
TW (1) TWI487513B (fr)
WO (1) WO2013187265A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10231883B2 (en) 2015-01-23 2019-03-19 Kimberly-Clark Worldwide, Inc. Bridged absorbent structure
US11007089B2 (en) 2015-09-30 2021-05-18 Daio Paper Corporation Absorbent article with improved adhesive usage and method of manufacturing same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6138864B2 (ja) * 2015-06-30 2017-05-31 ユニ・チャーム株式会社 吸収性物品
JP7001444B2 (ja) * 2017-11-29 2022-01-19 花王株式会社 吸収性物品
JP7125310B2 (ja) * 2018-09-04 2022-08-24 花王株式会社 パッド型吸収性物品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004049529A (ja) * 2002-07-19 2004-02-19 Kao Corp 吸収性物品
JP2005073921A (ja) * 2003-08-29 2005-03-24 Daio Paper Corp 吸収性物品
JP2007159943A (ja) * 2005-12-15 2007-06-28 Kao Corp 使い捨ておむつ
JP2009119154A (ja) * 2007-11-16 2009-06-04 Uni Charm Corp 吸収性物品
JP2009178383A (ja) * 2008-01-31 2009-08-13 Daio Paper Corp パンツ型使い捨ておむつ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI473601B (zh) * 2006-03-06 2015-02-21 Kao Corp 展開型之丟棄式尿褲

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004049529A (ja) * 2002-07-19 2004-02-19 Kao Corp 吸収性物品
JP2005073921A (ja) * 2003-08-29 2005-03-24 Daio Paper Corp 吸収性物品
JP2007159943A (ja) * 2005-12-15 2007-06-28 Kao Corp 使い捨ておむつ
JP2009119154A (ja) * 2007-11-16 2009-06-04 Uni Charm Corp 吸収性物品
JP2009178383A (ja) * 2008-01-31 2009-08-13 Daio Paper Corp パンツ型使い捨ておむつ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10231883B2 (en) 2015-01-23 2019-03-19 Kimberly-Clark Worldwide, Inc. Bridged absorbent structure
US11007089B2 (en) 2015-09-30 2021-05-18 Daio Paper Corporation Absorbent article with improved adhesive usage and method of manufacturing same

Also Published As

Publication number Publication date
TWI487513B (zh) 2015-06-11
TW201404385A (zh) 2014-02-01
RU2014154004A (ru) 2016-07-27
JP2013255565A (ja) 2013-12-26
JP5593350B2 (ja) 2014-09-24
RU2643124C2 (ru) 2018-01-30
CN104363869B (zh) 2017-02-22
CN104363869A (zh) 2015-02-18

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