WO2010113919A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2010113919A1
WO2010113919A1 PCT/JP2010/055638 JP2010055638W WO2010113919A1 WO 2010113919 A1 WO2010113919 A1 WO 2010113919A1 JP 2010055638 W JP2010055638 W JP 2010055638W WO 2010113919 A1 WO2010113919 A1 WO 2010113919A1
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WO
WIPO (PCT)
Prior art keywords
sheet
cell
absorbent
absorber
absorbent material
Prior art date
Application number
PCT/JP2010/055638
Other languages
English (en)
Japanese (ja)
Inventor
貞直 真鍋
慎也 和泉
洋介 森
寅成 竹内
Original Assignee
大王製紙株式会社
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 JP2009087942A external-priority patent/JP5319366B2/ja
Priority claimed from JP2009087943A external-priority patent/JP5319367B2/ja
Priority claimed from JP2009087941A external-priority patent/JP5319365B2/ja
Priority claimed from JP2009131114A external-priority patent/JP4850272B2/ja
Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Priority to KR1020117025320A priority Critical patent/KR101672568B1/ko
Priority to CN201080015342.0A priority patent/CN102378615B/zh
Publication of WO2010113919A1 publication Critical patent/WO2010113919A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—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
    • A61F13/5323—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 absorbent material located in discrete regions, e.g. pockets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/515—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 characterised by the interconnection of the topsheet and the backsheet
    • 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/5307—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 superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the quantity or ratio of superabsorbent material
    • 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708—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 superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
    • A61F2013/530737—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 superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties by the absorbent capacity

Definitions

  • the present invention relates to absorbent articles such as disposable diapers and sanitary napkins.
  • Absorbent articles such as general disposable diapers and sanitary napkins, as a basic configuration, an absorbent body, an impermeable backsheet disposed on the back side of the absorbent body, and a surface side of the absorbent body, A liquid-permeable top sheet that contacts the wearer's body.
  • Absorbents are widely used in which high-absorbent polymer particles (SAP) are mixed with hydrophilic short fibers such as pulverized pulp, and are spread in a cotton-like form.
  • SAP high-absorbent polymer particles
  • hydrophilic short fibers such as pulverized pulp
  • a mixture of continuous fibers such as acetate mixed with superabsorbent polymer particles is also used.
  • increasing the amount of superabsorbent polymer and decreasing the amount of fiber material is a simple and effective solution.
  • the cell is deformed and moved freely due to external force applied at the time of product packaging and use, etc., and it becomes unnecessarily thick or thin evenly. There was a risk of becoming. As a result, not only the feeling of wearing and the feeling of touch is deteriorated, but also the absorption performance may be lowered, for example, the volume of the cell cannot be expanded smoothly at the time of absorption.
  • the present inventor has a first sheet and a second sheet in which a large number of ridges extending in a predetermined direction are arranged side by side, and the first sheet and the second sheet in each fold. 1 sheet side bottom part is joined to form a joined part. Between these joined parts, the first sheet and the second sheet are not joined to form a tunnel-like cell, and an absorbent material is enclosed in each cell. In the absorbent body made, it was invented to put each ridge of the second sheet in a lying state.
  • the absorbent body before absorption becomes very thin, and it becomes excellent in the feeling of wearing and touch, and the powdered absorbent material is distributed and enclosed in many cells as in the past, Even if the absorption amount is increased by using a large amount of the absorbent material, uneven absorption amount and absorption inhibition due to the uneven distribution of the absorbent material are prevented.
  • the main problem of the present invention is to maintain the advantages of an absorbent body in which an absorbent material is enclosed in a large number of cells, while the absorbent material is unevenly distributed in the cell, and to reduce the absorption performance in a portion where the absorbent material is small. It is to suppress an increase in the thickness of the absorber in a portion where the absorbent material is large.
  • the present invention that has solved the above problems is as follows.
  • ⁇ Invention of Claim 1> In an absorbent article provided with an absorber, The absorbent body is disposed between the first sheet and the second sheet, the first sheet disposed on either the front or back side, the second sheet in which a large number of ridges extending in a predetermined direction are arranged in parallel. And at least the front side sheet of the first sheet and the second sheet has liquid permeability, The first sheet and the first sheet side bottom of each ridge of the second sheet are joined to form a joined part, and the first sheet and the second sheet are not joined between these joined parts. Tunnel-like cells are formed, and an absorbent material is enclosed in each cell.
  • the adjacent joints are separated by a predetermined interval
  • the absorbent material is a granular material containing at least superabsorbent polymer particles, With respect to the maximum volume in each cell, the apparent volume at the time of non-absorption of the absorbent material enclosed therein is small, And at least a part of the absorbent material in each cell is movable in the cell,
  • the absorber is provided in a state in which the ridges of the second sheet are lying down, and both ends of the folds of the second sheet are fixed in the lying down state, and an intermediate portion between these fixed portions stands upright.
  • An absorbent article characterized by the above.
  • the cell inlet is opened during production, and there is an advantage that it is easy to put the absorbent into the cell.
  • the “maximum volume in the cell” means the volume when the cell is in the shape of a cylinder having a perfect circular section (the same applies hereinafter).
  • the separation distance between the adjacent joints in the juxtaposed direction of the ridges is configured to be larger than the width of the joints in the juxtaposed direction of the heels, Two of the double portion of the second sheet and the single portion of the second sheet that are formed in at least some of the cells in the lying state and at least some of the cells partially overlap with adjacent cells.
  • the overlapping portion is formed so as not to overlap the double portion of the second sheet formed in an adjacent cell,
  • the cells can be formed relatively shallow even if cells having the same maximum volume are formed, so that wrinkles on the absorber surface do not become too large, and the cells at the time of absorption Since the expansion of the volume becomes smoother, it is preferable. Of course, thinness, wearing feeling, and touch feeling can be improved. In addition, if the interval between adjacent joints is large, the area of the cell inlet is increased, so that there is also an advantage that it is easy to put the absorbent material into the cell during production.
  • the cells are too far apart, because there is a portion that does not have an absorbent material between adjacent cells, it is difficult to ensure the amount of absorption, there is a risk that a decrease in absorption performance, such as slow absorption speed may occur, If the cells partially overlap, such a decrease in absorption performance can be prevented. In addition, if the cells are too far apart, a relatively large step is formed between the portion between the adjacent cells and the cell portion, which may adversely affect the wearing feeling and the touch feeling.
  • the apparent volume at the time of absorption saturation of the absorbent material enclosed in the cell is 70 to 120% with respect to the maximum volume in each cell, the amount of absorption can be reduced while suppressing the swelling of the absorbent material. It is preferable because it can be remarkably improved as compared with the general absorber.
  • the absorber is provided such that the ridges of the second sheet are on the top sheet side and the ridges of the second sheet extend along the width direction,
  • the absorptive article according to claim 3 with which at least a portion between said fixed parts in said absorber is intermittently joined to said top sheet at intervals corresponding to a cell arrangement interval in the front-rear direction.
  • the top sheet it is preferable to fix the top sheet to the absorber in order to prevent the top sheet from leaning, but when the second sheet wrinkle is located on the top sheet side, the conventional general fixing form is used. If it is adopted, when the cell stands up while being swollen due to swelling of the absorbent material during use, there is a risk that the expansion and standing of the cell may be hindered. On the other hand, it is preferable to intermittently join the absorbent body to the top sheet as described above because the cell can be smoothly expanded and stood while the top sheet can be prevented from leaning.
  • each cell can expand and stand up over the full width of the absorber.
  • each cell can expand and stand up almost over the width of the absorber, and the folded portions on both sides in the width direction of the absorber are used as weirs for preventing side leakage. Will be able to.
  • the at least one of the first sheet and the second sheet has a plurality of tack portions in which folds extend along a direction orthogonal to the extending direction of the ridges of the second sheet.
  • Absorbent articles
  • the absorbent material may be unevenly distributed in the cell. If the absorbent material is unevenly distributed in the cell, leakage may occur due to a local decrease in absorption performance in a portion with a small amount of absorbent material or a local increase in the thickness of the absorber in a portion with a large amount of absorbent material. It is not preferable because the wearing feeling may be deteriorated. Therefore, it is desired to suppress the uneven distribution of the absorbent material in the cell while maintaining the advantage of the absorbent body in which the absorbent material is movably enclosed in a large number of cells.
  • the tuck fold (folded mountain) protruding inside the cell serves as a blocking wall that prevents the absorbent material from moving, and the absorbent material is blocked from flowing in the cell along the extending direction of the ridge. It becomes like this. Therefore, uneven distribution of the absorbent in the cell is effectively suppressed.
  • the said tack part is each provided in the both sides of the longitudinal direction center of a cell, and these tack parts are provided so that the front-end
  • a liquid-impermeable back sheet is provided on the back side of the absorber,
  • This backsheet has an overlapping portion that overlaps both sides in the width direction of the absorber, and a protruding portion that extends from the overlapping portion to the side of the absorber,
  • a root portion fixed to a portion from the surface side of the protruding portion of the back sheet to the surface side of both side portions of the absorbent body, and an unfixed portion protruding from the root portion Gather sheets with free parts are provided,
  • the absorbent article according to claim 13 wherein both ends of the absorbent body are sandwiched between the gather sheet and a back sheet, so that both end portions of each ridge of the second sheet are fixed in a lying state. .
  • the absorber is interposed between the liquid-permeable top sheet and the liquid-impervious back sheet, and the shortest diameter is in the middle in the front-rear direction and in the middle in the width direction in the region overlapping the absorber in the top sheet.
  • the absorbent material may be unevenly distributed in the cell. If the absorbent material is unevenly distributed in the cell, leakage may occur due to a local decrease in absorption performance in a portion with a small amount of absorbent material or a local increase in the thickness of the absorber in a portion with a large amount of absorbent material. It is not preferable because the wearing feeling may be deteriorated. Therefore, it is desired to suppress the uneven distribution of the absorbent material in the cell while maintaining the advantage of the absorbent body in which the absorbent material is movably enclosed in a large number of cells.
  • the adhesion (tackiness) of the pressure-sensitive adhesive layer is more than a certain level, the absorbent material is firmly adhered and held to inhibit swelling, or the wrinkles of the second sheet are adhered to the pressure-sensitive adhesive layer of the first sheet, There is a risk that expansion may be inhibited. Moreover, when the adhesiveness of the adhesive layer is too weak, the effect of preventing the movement of the absorbent material becomes poor. Therefore, the adhesiveness of the adhesive layer is preferably within the above range.
  • the loop tack adhesive strength is measured as follows.
  • the adhesive layer may be provided partially, or may be provided in a pattern such as a dotted pattern, a staggered pattern, etc., but from the viewpoint of preventing the movement of the absorbent and manufacturing ease, as described above. It is preferable to provide over the whole part exposed to the cell inner surface in a 1st sheet
  • the absorbent material When the first sheet is provided so as to be on the back sheet side, that is, the lower side, the absorbent material easily comes into contact with the adhesive layer of the first sheet, and therefore the absorbent material is easily held in the adhesive layer. Since the absorbent material occupies a small amount with respect to the volume in the cell before the absorption expansion, it hardly contacts the cell inner surface of the second sheet. Therefore, it is not necessary to provide an adhesive layer on the second sheet in order to prevent the absorbent material from moving before absorption. Rather, if the adhesive layer is provided on the portion of the second sheet that is exposed at the cell inner surface, the inner surfaces of the ridges may adhere to each other, making it difficult for the cell to expand. Therefore, it is preferable that the adhesive layer is not provided over this part.
  • the absorbent material when there are a large number of absorbent materials, all of the absorbent materials are not held in the adhesive layer, and hence the absorbent material may be unevenly distributed. In such a case, the absorbent material unevenly distributed on one side of the cell is gradually expanded while moving toward the other side having an expandable space.
  • the friction between the second sheet corresponding to the upper surface inside the cell and the absorbent material is not increased, the movement of the absorbent material during the absorption expansion is hardly hindered. Therefore, it is preferable not to provide an adhesive layer on the portion of the second sheet exposed to the cell inner surface.
  • the portion of the second sheet exposed to the inner surface of the cell has an average surface friction coefficient MIU of 0.2 or less, a variation coefficient MMD of the surface friction coefficient of 0.01 or less, and a surface roughness SMD of 10 micrometers or less.
  • the absorbent article according to claim 20 has an average surface friction coefficient MIU of 0.2 or less, a variation coefficient MMD of the surface friction coefficient of 0.01 or less, and a surface roughness SMD of 10 micrometers or less.
  • the superabsorbent polymer particles are particles having a particle size of 1000 ⁇ m or less
  • the second sheet is a nonwoven fabric having a melt blown nonwoven fabric layer between the spunbond nonwoven fabric layer and the spunbond nonwoven fabric layer, having a fiber basis weight of 5 to 20 g / m 2 and a thickness of 0.05 to 0.25 mm.
  • the thickness is a numerical value at a load of 0.5 g / cm 2 measured using a KES-G5 handy compression tester (pressure plate is 2 cm 2 circular, compression deformation rate is 0.1 mm / sec).
  • FIG. 3 is a cross-sectional view taken along the line 3-3 in FIG. 1.
  • FIG. 4 is a sectional view taken along line 4-4 of FIG.
  • FIG. 5 is a sectional view taken along the line 5-5 in FIG.
  • It is a top view in the state where the diaper was developed showing only the principal part of a pants type disposable diaper. It is sectional drawing which shows only the principal part of a pants type disposable diaper. It is a front view of a product state. It is a rear view of a product state.
  • FIG. 6 is a sectional view taken along line 6-6 of FIG.
  • FIG. 7 is a sectional view taken along line 7-7 in FIG.
  • FIG. 8 is a sectional view taken along line 8-8 in FIG.
  • FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. It is various sectional drawing of an absorber. It is a top view of an absorber which has the section structure of Drawing 16 (c), and an important section section. It is a top view of the absorber which has the cross-sectional structure of Fig.16 (a).
  • FIG. 30 is a cross-sectional view taken along the line 3-3 in FIG. 29.
  • FIG. 30 is a sectional view taken along line 5-5 in FIG. 29.
  • FIG. 36 is a sectional view taken along line 6-6 of FIG.
  • FIG. 34 is a sectional view taken along line 7-7 in FIG. 33.
  • FIG. 34 is a sectional view taken along line 8-8 in FIG.
  • FIG. 34 is a cross-sectional view taken along line 9-9 of FIG. It is a top view in the state where the diaper was developed showing the inside of the underpants type disposable diaper in the 2nd form.
  • FIG. 39 is a cross-sectional view taken along the line 3-3 in FIG. 38.
  • FIG. 41 is a sectional view taken along the line 4-4 in FIG. 38. It is a top view in the state where the diaper was developed showing only the principal part of a pants type disposable diaper in the 2nd form. It is sectional drawing which shows only the principal part of the underpants type disposable diaper in a 2nd form. It is a top view in the state where the diaper was developed showing the inner surface of a tape type disposable diaper in the 2nd form.
  • FIG. 39 is a cross-sectional view taken along the line 3-3 in FIG. 38.
  • FIG. 41 is a sectional view taken along the line 4-4 in FIG. 38. It is a top view in the state where the diaper was developed showing only the principal part of a pants
  • FIG. 6 is a sectional view taken along line 6-6 of FIG.
  • FIG. 44 is a cross-sectional view taken along line 9-9 of FIG. It is various sectional drawing of the absorber in a 2nd form.
  • 46 is a plan view and a main part cross-section of an absorber having the cross-sectional structure of FIG. It is a top view of the absorber which has the cross-sectional structure of Fig.46 (a).
  • the cell is a plan view of the absorbent body along the front-rear direction. It is a partially broken perspective view which shows roughly the principal part of the absorber which has a tack part in a 2nd form.
  • FIG. 3 is a cross-sectional view taken along line 3-3 of FIG. 1 in a third embodiment.
  • FIG. 4 is a cross-sectional view taken along the line 4-4 of FIG. 1 in the third embodiment.
  • FIG. 5 is a sectional view taken along the line 5-5 in FIG. 1 in the third embodiment. It is sectional drawing which shows only the principal part of the underpants type disposable diaper in a 3rd form.
  • FIG. 13 is a sectional view taken along line 6-6 of FIG. 10 in the third embodiment.
  • FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 10 in the third embodiment.
  • FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 10 in the third embodiment. It is various sectional drawing of the absorber in a 3rd form.
  • front-rear direction means a direction (vertical direction) connecting the ventral side (front side) and back side (rear side)
  • width direction means a direction (left-right direction) perpendicular to the front-rear direction.
  • Up and down direction means the wearing state of the diaper, that is, the waistline direction when the diaper is folded in two at the crotch so that both the front body side and the back body side of the diaper overlap each other It means a direction orthogonal to each other, that is, a direction connecting the waist side and the crotch side.
  • ⁇ Structure example of pants-type disposable diaper> 1 to 9 show an example of a pants-type disposable diaper.
  • This pants-type disposable diaper is composed of an exterior sheet 12 forming the outer surface (back surface) of the product and an interior body 200 attached to the inner surface of the exterior sheet.
  • the interior body 200 is a part that absorbs and holds excrement such as urine
  • the exterior sheet 12 is a part that is worn by the wearer.
  • the dot pattern part in sectional drawing has shown the junction part which joins each structural member, and is formed by solid, beads, curtains, summits, spiral application, etc., such as a hot-melt-adhesive.
  • the interior body 200 can take any shape, but is rectangular in the illustrated form. As shown in FIGS. 3 to 5, the interior body 200 includes a top sheet 30 on the body side, a liquid-impermeable back sheet 11, and an absorbent body 56 interposed therebetween. It is. Reference numeral 40 denotes an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbent body 56 in order to quickly move the liquid that has passed through the top sheet 30 to the absorbent body 56. Shows a three-dimensional gather 60 that stands on the body side and is provided on both sides of the interior body 200 in order to prevent excrement from leaking to both sides of the interior body 200.
  • the top sheet 30 has a property of allowing liquid to pass through, and examples thereof include a porous or non-porous nonwoven fabric, a porous plastic sheet, and the like.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing.
  • processing method examples include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • spunlace method a spunlace method
  • thermal bond method a melt blown method
  • melt blown method a melt blown method
  • needle punch method an air through method
  • point bond method a point bond method.
  • the spunbond method and spunlace method are preferable.
  • the air-through method, point bond method, and thermal bond method are preferable processing methods. .
  • the top sheet 30 may be composed of one sheet or may be composed of a laminated sheet obtained by bonding two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.
  • both sides of the top sheet 30 pass between the liquid-impervious backsheet 11 and the three-dimensional gather 60 to the back side of the absorbent body 56 to prevent the penetration of the liquid. It is preferable to adhere to the liquid-impermeable back sheet 11 and the three-dimensional gather 60 with a hot melt adhesive or the like.
  • the top sheet 30 can be omitted.
  • This intermediate sheet 40 not only quickly transfers the excrement to the absorber to enhance the absorption performance by the absorber, but also prevents the excretion of the absorbed excrement from returning from the absorber and improves the feel of the top sheet 30 surface. To do.
  • the intermediate sheet 40 can be omitted.
  • the intermediate sheet 40 the same material as the top sheet 30, spunlace, spunbond, laminated nonwoven fabric having a meltblown nonwoven fabric layer between the spunbond nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.), pulp nonwoven fabric, pulp and rayon Examples of the mixed sheet, point bond or crepe paper.
  • an air-through nonwoven fabric is preferable because it is bulky.
  • the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable.
  • Basis weight is preferably 20 ⁇ 80g / m 2, more preferably 25 ⁇ 60g / m 2.
  • the thickness of the raw fiber of the nonwoven fabric is preferably 2.2 to 10 dtex.
  • the intermediate sheet 40 is preferably bonded to the top sheet 30.
  • the material of the intermediate sheet 40 preferably has the same melting point as the top sheet 30.
  • the fineness of the fiber used for the intermediate sheet 40 is preferably 5.0 to 7.0 dtex, but the liquid residue in the top sheet 30 increases.
  • the fineness of the fiber used for the intermediate sheet 40 is 1.0 to 2.0 dtex, the liquid residue of the top sheet 30 hardly occurs, but the solid content of the stool is difficult to permeate. Therefore, it is preferable that the nonwoven fabric fibers used for the intermediate sheet 40 have a fineness of about 2.0 to 5.0 dtex.
  • the intermediate sheet 40 in the illustrated form is arranged in the center shorter than the width of the absorbent body 56, but may be provided over the entire width.
  • the length of the intermediate sheet 40 in the longitudinal direction may be the same as the entire length of the diaper, may be the same as the length of the absorbent body 56, or may be within a short length range centered on the region that receives the liquid.
  • the absorber 56 will be described later.
  • the absorber 56 can be bonded to the inner surface of the liquid-impermeable back sheet 11 via an adhesive such as a hot melt adhesive on the back surface.
  • the material of the liquid-impermeable back sheet 11 is not particularly limited.
  • a non-woven fabric having liquid impermeability substantially secured by interposing in this case, a liquid-impervious backsheet is composed of a waterproof film and a non-woven fabric) can be used.
  • the liquid-impermeable back sheet 11 is preferably a liquid-impervious and moisture-permeable material that has been preferred in recent years from the viewpoint of preventing stuffiness.
  • a plastic film having moisture permeability an inorganic filler such as calcium carbonate particles is kneaded in an olefin-based resin such as polyethylene or polypropylene, a sheet is formed, and then stretched in a uniaxial or biaxial direction. The resulting microporous plastic film is widely used.
  • non-woven fabric using microdenier fiber leakproof reinforcement by reducing the voids of the fiber by applying heat or pressure, coating of highly water-absorbing resin or hydrophobic resin or water repellent
  • a sheet that is liquid-impermeable without using a plastic film by the method can also be used as the liquid-impermeable back sheet 11.
  • the liquid-impermeable back sheet 11 is preferably extended to both sides of the side surface of the top sheet 30 of the absorbent body 56 so as to improve leakage prevention.
  • the width of this extended portion is suitably about 5 to 20 mm on the left and right.
  • an excretion indicator 80 whose color changes by contact with the liquid can be provided inside the liquid-impermeable back sheet 11, particularly between the absorbent body 56.
  • the three-dimensional gather 60 is a belt-like member that extends over the entire front-rear direction along both side portions of the interior body 200, blocks urine and soft stool that move in the lateral direction along the top sheet 30, and prevents side leakage. It is provided for this purpose.
  • the three-dimensional gather 60 of the present embodiment is provided so as to stand up from the side portion of the interior body 200, the base side portion rises obliquely toward the center in the width direction, and the tip side portion from the intermediate portion has a width. It stands up diagonally outward in the direction.
  • the three-dimensional gather 60 folds the belt-shaped gather sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 in the width direction and folds it into two.
  • a plurality of elongated elastic elastic members 63 are fixed along the longitudinal direction at intervals in the width direction.
  • An end portion of the three-dimensional gather 60 opposite to the folded portion in the width direction is an attachment portion 65 fixed to the back surface of the side edge portion of the interior body 200, and portions other than the attachment portion 65 protrude from the attachment portion 65. It is set as the protrusion part 66 (part by the side of a folding
  • both end portions in the front-rear direction of the protruding portion 66 extend from the mounting portion 65 to the side surface of the top sheet 30 through the side portion of the interior body 200 and are hot-melted with respect to the side surface of the top sheet 30.
  • the base side portion is fixed to the front and rear fixing portion 67 by an adhesive or heat seal, and the tip side portion is folded back outward in the width direction from the tip of the base side portion and fixed to the base side portion.
  • An intermediate part in the front-rear direction of the protruding part is an unfixed free part (inner free part), and an elongated elastic member 63 extending in the front-rear direction is fixed to the free part in an extended state.
  • a spunbond nonwoven fabric (SS, SSS, etc.), a laminated nonwoven fabric having a meltblown nonwoven fabric layer between the spunbond nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.), a melt blown nonwoven fabric, etc.
  • An excellent non-woven fabric that has been subjected to water repellency treatment with silicon or the like as required can be suitably used, and the fiber basis weight is preferably about 10 to 30 g / m 2 .
  • the elongated elastic elastic member 63 rubber thread or the like can be used. When spandex yarn rubber is used, the thickness is preferably 470 to 1240 dtex, more preferably 620 to 940 dtex.
  • the elongation at the time of fixation is preferably 150 to 350%, more preferably 200 to 300%.
  • a waterproof film can be interposed between the gather sheets folded in two.
  • the number of the elongated elastic elastic members 63 provided in the free part of the three-dimensional gather 60 is preferably 2 to 6, and more preferably 3 to 5.
  • the arrangement interval 60d is suitably 3 to 10 mm. If comprised in this way, in the range which has arrange
  • the elongated elastic elastic member 63 may be disposed not only at the distal end side but also at the base side.
  • the fixing target of the attachment portion 65 of the three-dimensional gather 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable back sheet 11, the absorber 56 in the interior body 200.
  • the contraction force of the elongated elastic elastic member 63 acts so that both ends in the front-rear direction are brought close to each other, but the both ends in the front-rear direction of the protruding portion 66 are fixed so as not to stand up.
  • the free portions stand up against the body side as shown in FIG.
  • the attachment portion 65 is positioned on the back surface side of the interior body 200, the three-dimensional gather 60 stands up so as to open outward in the width direction at the crotch portion and in the vicinity thereof. It comes in contact, and the fit is improved.
  • the dimensions of the three-dimensional gather 60 can be determined as appropriate.
  • the standing height of the three-dimensional gather 60 (the length in the width direction of the protruding portion 66 in the unfolded state) W6 is It is preferably 15 to 60 mm, particularly 20 to 40 mm.
  • the separation distance W3 between the folds located on the innermost side is preferably 60 to 190 mm, particularly preferably 70 to 140 mm.
  • double (two rows) of three-dimensional gathers can be provided on the left and right sides of the interior body 200.
  • the exterior sheet 12 has a ventral part F extending from the crotch part to the ventral side and a dorsal part B extending from the crotch part to the dorsal side. As shown in FIGS. 8 and 9, a pair of left and right leg openings LO for passing the legs and a torso opening WO for passing the wearer's torso are formed. Is.
  • Reference numeral 12A denotes a joining portion (hereinafter, this portion is also referred to as a side seal portion).
  • the crotch portion means the center in the front-rear direction from the waist edge of the ventral part to the waist edge of the dorsal part in the deployed state, and the front part and the rear part are the ventral part F. And the back portion B.
  • the exterior sheet 12 has a trunk periphery T that is defined as a longitudinal range extending from the trunk opening WO to the upper end of the leg opening LO, and an intermediate portion L that is defined as a longitudinal range of a portion that forms the leg opening LO.
  • the waistline portion T can be conceptually divided into a “waist side end” W and a “waistline lower portion” U. These lengths in the front-rear direction vary depending on the size of the product and can be determined as appropriate.
  • the waist side end portion W can be 15 to 40 mm
  • the waist lower portion U can be 65 to 120 mm. .
  • both side edges of the intermediate portion L are bundled along the circumference of the wearer's leg, and this is a portion into which the wearer's leg is put.
  • the exterior sheet 12 has a substantially hourglass shape as a whole.
  • the degree of tightness of the exterior sheet 12 can be determined as appropriate.
  • the narrowest part may be narrower than the width of the interior body 200 in order to obtain a clean appearance.
  • the narrowest part can be determined so as to be equal to or larger than the width of the interior body 200.
  • the exterior sheet 12 is formed by bonding two sheet base materials 12S and 12H with an adhesive such as a hot melt adhesive, and is an inner sheet positioned on the inner side.
  • the base material 12H extends only to the edge of the waist opening WO
  • the outer sheet base material 12S wraps around the waist side edge of the inner sheet base material 12H and is folded back to the inside. 12r is extended so that it may cover to the waist side edge part of the interior body 20.
  • the sheet base materials 12S and 12H can be used without particular limitation as long as they are sheet base materials, but are preferably non-woven fabrics.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • a long-fiber nonwoven fabric such as a spunbond nonwoven fabric or a laminated nonwoven fabric having a melt-blown nonwoven fabric layer between the spunbond nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.) is preferable in terms of achieving both touch and strength.
  • a plurality of nonwoven fabrics can be used.
  • the nonwoven fabrics 12 are preferably bonded to each other with a hot melt adhesive or the like.
  • the fiber basis weight is desirably 10 to 50 g / m 2 , particularly 15 to 30 g / m 2 .
  • the total basis weight of the exterior sheet 12 is preferably about 20 to 60 g / m 2 so that the design of the printing sheet 25 described later can be satisfactorily visually recognized through the exterior sheet 12.
  • the total light transmittance specified in 7105 is preferably 40% or more, particularly 50% or more.
  • the outer sheet 12 is provided with elongated elastic elastic members 15 to 19 such as rubber thread between the sheet base materials 12S and 12H at a predetermined elongation rate in order to improve the fit to the waistline.
  • elongated elastic elastic members 15 to 19 synthetic rubber or natural rubber may be used.
  • hot melt bonding or heat sealing or ultrasonic bonding by various coating methods is used. Can do. If the entire exterior sheet 12 is firmly fixed, the texture of the sheet is impaired, which is not preferable. By combining these, it is preferable that the elongated elastic elastic members 15 to 19 are firmly bonded, and the other portions are not bonded or are bonded weakly.
  • the plurality of waist elastic elastic members 17 and 18 are fixed in a state where they are stretched along the width direction at a predetermined stretch rate at intervals in the vertical direction so as to be continuous over the entire width direction.
  • one or more of the waist elastic elastic members 17 and 18 disposed in a region adjacent to the waistline lower portion U may overlap with the interior body 200 or overlap with the interior body 200. You may each provide in the width direction both sides except the width direction center part.
  • the elastic waist members 17 and 18 have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , particularly 0.1 to the rubber thread of 1.0mm about 2), 4 3 to 22 present approximately at intervals of ⁇ 12 mm, an extension ratio 150 to 400%, preferably fixed in particular about 220 to 320%.
  • the waist elastic elastic members 17 and 18 need not all have the same thickness and expansion rate.
  • the elastic elastic members have different thicknesses and expansion rates at the upper and lower portions of the waist end W. Also good.
  • a central portion in the width direction that overlaps the interior body 200 is formed between the outer surface of the inner sheet base 12H and the inner surface of the outer sheet base 12S in the lower waist portion U of the ventral portion F and the back portion B.
  • a plurality of elongated elastic elastic members 15 and 19 are spaced apart in the vertical direction so as to be continuous over the entire width direction at each of the upper side and both sides in the width direction, and at a predetermined extension rate in the width direction. It is fixed in a stretched state.
  • the elongated elastic elastic members 15 and 19 in the lower waist part U have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • a cross-sectional area of 0.05 to 1.5 mm 2 (About 0.1 to 1.0 mm 2 ) is fixed at 1 to 15 mm, particularly about 3 to 30 mm at intervals of 3 to 8 mm, and stretch rates of about 200 to 350%, particularly about 240 to 300%, respectively. Is preferred.
  • the width direction center part which overlaps with the interior body 200 is excluded between the outer surface of the inner sheet base 12H and the inner surface of the outer sheet base 12S in the middle part L of the ventral part F and the back part B.
  • a plurality of elongated elastic elastic members 16 are stretched along the width direction at a predetermined stretch rate at intervals in the vertical direction so as to be continuous over the entire width direction at each part on both sides in the width direction. It is fixed in the state.
  • the elongated elastic elastic members 16 and 18 in the intermediate portion L have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • a cross-sectional area of 0.05 to 1.5 mm 2 In the case of natural rubber, a cross-sectional area of 0.05 to 1.5 mm 2 ,
  • the thread rubber of about 0.1 to 1.0 mm 2 is fixed at 5 to 40 mm, particularly 2 to 10 at intervals of 5 to 20 mm, respectively, with an elongation of 150 to 300%, particularly 180 to 260%. preferable.
  • the elongated elastic elastic members 15, 19, 16, and 18 of the lower waist portion U and the intermediate portion L are provided on both sides in the width direction except for the central portion in the width direction that overlaps the interior body 200. It is preferable that the interior body 200 does not shrink more than necessary in the width direction, and it does not look bad and does not deteriorate absorbability.
  • the elastic stretchable member exists from one side of the width direction to the other side across the interior body 200, but overlaps the interior body 200.
  • a configuration is also included in which the elastic stretchable member is cut at the center in the width direction so that the stretchable force does not act (substantially equivalent to not providing the elastic stretchable member).
  • the arrangement of the elongated elastic members 15, 19, 16, 18 is not limited to the above example, and the elongated elastic expansion / contraction of the lower waistline U so that the elastic force acts on the entire widthwise direction of the lower waistline U. Part or all of the members 15, 19, 16, and 18 can be provided from one side in the width direction to the other side across the interior body 200.
  • the elongated elastic elastic members 15 to 19 cross a printing sheet 25 to be described later and the rubber containing titanium oxide is used as the elongated elastic elastic members 15 to 19, the content of titanium oxide is low ( It is preferable to use those not containing titanium oxide (for example, 2% or less).
  • a post-processing tape 70 (fixing means) is provided at the center in the width direction on the outer surface of the back portion B of the exterior sheet 12.
  • the post-processing tape 70 is for fixing the diaper in a state of being rounded or folded so that the top sheet 30 is on the inside and the ventral portion F is on the inside.
  • a general post-processing tape 70 is in the form of a thin strip having a width of about 5 to 15 mm and a length of about 100 to 200 mm, and its base end is fixed to the outer surface of the exterior sheet 12 with an adhesive or the like.
  • the portion on the tip side is folded to a length of about 40 to 80 mm by tri-folding (Z-shaped cross section) or bi-folding, and the portion between the folded portions is fixed (temporarily fixed) so as to be peelable by an adhesive.
  • the diaper is rounded or folded so that the top sheet 30 is on the inside and the ventral part F is on the inside, and then the folded portion of the post-processing tape 70 is peeled off and spread, and the diaper is rounded or folded.
  • the diaper is fixed with an adhesive so as to be wound from the back side portion B of the diaper over the waist opening WO to the opposite outer surface.
  • the post-processing tape 70 is particularly preferably a tri-fold shape that can be folded compactly when not in use and can be expanded into a long shape when in use.
  • the post-processing tape 70 which does not have the base end part fixed to the outer surface of the exterior sheet 12, and is attached to the diaper surface removably.
  • the post-processing tape 70 is preferably composed of a base sheet and a hook material of a mechanical fastener, and the shape is not limited to a narrow band shape, but a rectangle, a circle, other figures, etc.
  • the size can be about 20 to 100 mm in length and width, and the area can be about 1000 to 5000 mm 2 .
  • the fixing means such as the post-processing tape 70 may be provided on the ventral portion F, may be provided on both the back portion B and the ventral portion F, or may be provided on both the left and right sides instead of the central portion in the width direction. Good.
  • the ventral portion F to the dorsal portion B are continuously covered with an integral exterior sheet 12, but the exterior sheet and the ventral exterior sheet covering the ventral side of the wearer's waist and the back
  • the front end of the interior body is connected to the inner surface of the center part in the width direction of the abdominal side exterior sheet with a hot melt adhesive or the like, and the center in the width direction of the back side exterior sheet.
  • the rear end part of the interior body is connected to the inner surface of the interior part by a hot melt adhesive or the like, and the form in which the abdominal exterior sheet and the back exterior sheet are not continuous on the crotch side and separated is also adopted.
  • Can do. This separation distance can be about 150 to 250 mm.
  • the crotch outer sheet can also be fixed.
  • the crotch outer sheet the same material as that used for the outer sheet described above can be used.
  • a print sheet 25 that is designed by printing is provided.
  • the printing sheet 25 in the illustrated example is individually provided on the abdominal part F and the back part B, but may be provided so as to be continuously integrated from the abdominal part F to the back part B through the crotch part. it can.
  • a plastic film, non-woven fabric, paper, or the like can be used, but a bulky material having high air permeability is preferable.
  • a plastic film it is desirable to have moisture permeability in order to prevent stuffiness.
  • Nonwoven fabrics and paper are preferable because they have moisture permeability.
  • nonwoven fabrics it is preferable to use ones that are smooth and easy to print, and when papers are used, ones that have high strength and are difficult to bleed ink.
  • crepe paper having a basis weight of about 15 to 35 g / m 2 and a thickness of about 0.1 to 0.3 mm, and a basis weight of about 10 to 25 g / m 2 and a thickness of about 0.1 to 0.3 mm.
  • Non-woven fabrics especially spunbond nonwoven fabrics having a spunbond fineness of about 1.0 to 3.0 dtex, and laminated nonwoven fabrics having a melt-blown nonwoven fabric layer between the spunbond nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric)). it can.
  • the crepe rate is preferably about 5 to 20%, particularly about 5 to 15%. If the crepe rate is 20% or more, the amount of ink fixed increases, but blurring occurs and is not suitable for design printing. If the crepe rate is 5% or less, the amount of fixing is small because the ink hardly penetrates.
  • the size and shape of the printing sheet 25 are not particularly limited.
  • the width 25X of the printing sheet 25 is preferably about 50 to 120% of the width 56X of the absorbent body 56, and the length 25Y of the printing sheet 25 is at least an antinode. It is preferably about 15 to 30% of the total length Y of the article on one side of the side and the back side.
  • the shape of the print sheet 25 is preferably a rectangle as shown in the figure in that trim loss does not occur.
  • the print sheet 25 has a geometric shape such as a circle, an ellipse, a triangle, a hexagon, or a shape along the periphery of the design. You may cut it.
  • FIG. 10 to 15 show an example of a tape-type disposable diaper.
  • 12 and 13 are views showing a cross section taken along line 6-6 and 7-7 in FIG. 10, respectively, and FIGS. 14 and 15 are cross sections taken along line 8-8 and 9-9 in FIG. FIG.
  • This tape-type disposable diaper is a portion that extends from the lower abdomen along the center in the width direction through the crotch to cover the buttocks, and a liquid-permeable top sheet that forms the body side surface, and the outer surface side
  • An absorbent main body 10 which is a part where the absorbent body 56 is interposed between the liquid-impermeable back sheet located in the front part and a rear side of the absorbent main body part 10, respectively. And it has the abdominal side end flap part FE and back side end flap part BE which are parts which do not have the absorber 56.
  • the tape-type disposable diaper includes a pair of abdominal side flap portions FF, FF extending to the outside in the width direction from the crotch portion C on both sides of the upper edge F1 side portion of the abdominal side F, and a back side B. On both sides of the upper edge B1 side portion, a pair of back side flap portions BF, BF extending to the outside in the width direction from the crotch portion C are provided. Moreover, the fastening tape 130 as a locking member is provided in the back side flap part BF and BF, respectively.
  • the entire outer surface of the absorbent main body 10 and the side flap portions BF and FF on the back side and the abdomen side is formed by the exterior sheet 12.
  • a liquid-impermeable back sheet 11 is fixed to the inner surface side of the exterior sheet 12 with an adhesive such as a hot melt adhesive, and further to the inner surface side of the liquid-impermeable back sheet 11.
  • the absorber 56, the intermediate sheet 40, and the top sheet 30 are laminated in this order.
  • the top sheet 30 and the liquid-impermeable back sheet 11 are rectangular in the illustrated example, have slightly larger dimensions in the front-rear direction and the width direction than the absorbent body 56, and from the side edges of the absorbent body 56 in the top sheet 30.
  • the peripheral edge that protrudes and the peripheral edge that protrudes from the side edge of the absorbent body 56 in the liquid-impermeable back sheet 11 are fixed by a hot melt adhesive or the like.
  • the liquid-impermeable back sheet 11 is made of a moisture-permeable polyethylene film or the like, and is formed slightly wider than the top sheet 30.
  • side solid gathers 60, 60 that protrude (stand up) toward the wearer's skin are provided, and the gather sheets that form the side solid gathers 60, 60 are provided.
  • 62 and 62 are extended over the whole width direction outer side of the absorptive main-body part 10 including the inner surface of each side flap part BF and FF of back side and abdominal side.
  • the exterior sheet 12 is a part constituting the outer surface of the article.
  • the exterior sheet 12 has an hourglass shape in which the center portions in the front-rear direction on both sides are constricted, and this is a portion that fits around the wearer's legs.
  • the exterior sheet 12 is preferably a non-woven fabric, but is not limited thereto. As a nonwoven fabric, since the thing similar to the sheet
  • top sheet and intermediate sheet As the liquid-impermeable back sheet 11, the top sheet 30, and the intermediate sheet 40, since the same thing as the above-mentioned pants-type disposable diaper can be used, the description will be omitted here.
  • the top sheet 30 and the intermediate sheet 40 may be omitted.
  • the absorber 56 will be described later.
  • the absorber 56 can be bonded to the inner surface of the liquid-impermeable back sheet 11 via an adhesive such as a hot melt adhesive on the back surface.
  • the side three-dimensional gather 60 includes a gather sheet 62 that is substantially continuous in the width direction, and an elongated elastic elastic member 63 that is fixed to the gather sheet 62 in a stretched state along the front-rear direction.
  • the gather sheet 62 and the elastic stretchable member 63 can be the same as those of the above-described pants type, and a plurality of elastic stretchable members 63 are provided as shown in FIGS. be able to.
  • the inner surface of the gather sheet 62 has a fixing start end in the width direction on the side portion of the top sheet 30, and a portion on the outer side in the width direction from the fixing start end is a side portion of the liquid-impermeable back sheet 11 and the outer side in the width direction. Is fixed to a side portion of the exterior sheet 12 located at a position by a hot melt adhesive or the like. Out of the fixing portions, on the outer side in the width direction near the fixing start end, elastic elastic members 64 around the legs made of rubber thread or the like are provided along the front-rear direction between the sheets where the gather sheet 62 and the exterior sheet 12 face each other. It has been.
  • the width direction inner side from the fixing start end of the side three-dimensional gather 60 is fixed on the top sheet 30 at both ends in the product front-rear direction, but the portion between them is an unfixed free part.
  • the portion comes to stand by the contraction force of the rubber thread 63.
  • the diaper is worn, the diaper is attached to the body in the shape of a boat, and the contraction force of the rubber thread 63 acts. Therefore, the side three-dimensional gather 60 stands up due to the contraction force of the rubber thread 63 and comes into close contact with the legs. . As a result, so-called side leakage from around the legs is prevented.
  • the front and rear direction end portions of the gather sheet 62 on the inner side in the width direction are divided into a base end side portion extending inward in the width direction from an outer portion in the width direction and a center side in the width direction of the base end side portion. It is also possible to fix in a double-folded state having a distal end side portion that is folded back from the edge toward the body side and extends outward in the width direction, and the portion in between can be an unfixed free portion.
  • the fastening tape 130 has a base portion of a fastening base material 130C made of a nonwoven fabric, a plastic film, a polylaminated nonwoven fabric, paper, or a composite material thereof attached to the diaper.
  • a hook material 130A for a mechanical fastener is provided.
  • the hook material 130A is bonded to the fastening base material 130C by an adhesive so as not to be peeled off.
  • the length X1 in the width direction of the diaper is 10 to 50 mm.
  • the length Y1 in the front-rear direction is preferably 20 to 40 mm, more preferably 20 to 100 mm, and particularly preferably 40 to 80 mm.
  • the length in the width direction of the diaper is preferably 30 to 80 mm, particularly preferably 40 to 60 mm, and the length (height) in the front-rear direction is 20 to 70 mm.
  • the thickness is preferably 25 to 50 mm.
  • the numerical range is determined by an average value.
  • the shape of the fastening tape 130 may be a symmetric shape such as a rectangular shape, but if it is a convex shape consisting of a wide attachment portion and an elongated tip side portion, the knob on the tip side portion is easy to pick and This is preferable because the tension between the bases of this region acts over a wide range.
  • the hook member 130A has a large number of engaging protrusions on the outer surface side.
  • the shape of the engaging protrusion is (A) Le-shaped, (B) J-shaped, (C) Mushroom-shaped, (D) T-shaped, (E) Double J-shaped (J-shaped And the like may be any shape.
  • an adhesive material layer can be provided as a locking portion of the fastening tape 130.
  • the fastening tape When installing the diaper, the fastening tape is locked to an appropriate position on the outer surface of the ventral side F with the back side flap portion BF being overlapped on the outside of the ventral side flap portion FF.
  • the position and size of the fastening portion of the fastening tape 130 can be arbitrarily determined.
  • the locking location In diapers for infants up to about 12 months old, the locking location is a rectangular range of 20 to 80 mm in the front-rear direction and 150 to 300 mm in the width direction, and the distance in the height direction between the upper edge and the ventral upper edge is 0 It is preferable to set it to ⁇ 60 mm, particularly 20 to 50 mm, and the center in the width direction of the product.
  • the fastening tape 130 acts between the attachment portions of the left and right fastening tapes 130 when the diaper is attached.
  • the back end of the absorbent body 56 is firmly pressed against the body by the tension, which is preferable.
  • the attachment part of the fastening tape 130 is too far from the back side end part (rear end part) of the diaper, the tension acting between the attachment parts of the left and right fastening tapes 130 when the diaper is mounted is the back side end part of the diaper. Therefore, a gap is likely to occur between the back end of the diaper and the body surface. Therefore, the length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the base portion of the fastening tape 130.
  • the target print sheet 74 It is preferable to provide a target printing sheet 74 having target printing for facilitating the locking at the locking portion of the fastening tape 130 on the ventral side F.
  • the target print sheet 74 may be one in which a large number of loop yarns on the surface of a base material sheet made of a plastic film or a nonwoven fabric that entangle the engagement projections of the hook material are used.
  • a surface of a base material sheet made of a plastic film having a smooth surface that is rich in adhesiveness can be used.
  • the target printing is preferably performed on the base sheet.
  • the fastening portion of the fastening tape 130 on the ventral side F is made of a nonwoven fabric
  • the exterior sheet 12 of the illustrated form is made of a nonwoven fabric
  • the fastening portion of the fastening tape 130 is a hook material 130A
  • the target tape 74 can be omitted, and the hook material 130A can be entangled with the nonwoven fabric of the exterior sheet 12 and locked.
  • the target print sheet 74 may be provided between the exterior sheet 12 and the liquid-impermeable back sheet 11.
  • End flap The end flap part is a part that extends to the front side and the rear side of the absorbent main body part 10 and does not have the absorber 56, and the front side extension part is the ventral end flap part FE.
  • the extended portion on the rear side is the back end flap portion BE.
  • the length in the front-rear direction of the back end flap BE is preferably the same as or shorter than the length in the front-rear direction of the attachment portion of the fastening tape 130 for the reasons described above. If it is too close, a gap is likely to be formed between the diaper dorsal side end and the body surface due to the thickness and stiffness of the absorbent body 56, so that it is preferably 10 mm or more.
  • the length in the front-rear direction of the ventral end flap portion FE and the back end flap portion BE is preferably about 5 to 20% of the length L in the front-rear direction of the entire diaper, and watery stools and soft stools are frequently excreted. In diapers for infants from newborns up to about 12 months, it is appropriate that the length is 10 to 60 mm, particularly 20 to 50 mm.
  • a belt-like back-side stretchable sheet 70 that elastically expands and contracts in the width direction is provided between both fastening tapes 130 to improve the fit on the back side of the diaper.
  • Both end portions of the back-side elastic sheet 70 are preferably extended to a portion that overlaps with the attachment portions of both fastening tapes 130, but may be spaced apart in the center in the width direction.
  • the longitudinal dimension of the back side elastic sheet 70 is approximately the same as the longitudinal dimension of the attachment portion of the fastening tape 130, there may be a dimensional difference of about ⁇ 20%.
  • the back elastic sheet 70 may use a sheet-like elastic member such as a rubber sheet, but from the viewpoint of air permeability, as shown in FIG.
  • a sheet base 71 such as two nonwoven fabrics is used as a hot melt adhesive.
  • the elastic elastic member 72 such as a perforated sheet, net, or elongated (thread or string) is stretched between the sheet base materials 71 in a state of being stretched along the width direction. What was used is used suitably.
  • the stretch rate of the elastic elastic member 72 is preferably about 150 to 250%. Further, when an elongated member (thread-like or string-like) is used as the elastic elastic member 72, it is preferable to provide about 5 to 15 members with a thickness of 420 to 1120 dtex at intervals 72d of 3 to 10 mm.
  • a part of the elastic expansion / contraction member 72 is arranged so as to cross the absorber 56, because the fit of the absorber 56 is improved.
  • the elastic expansion / contraction member 72 is used. If the contraction force is prevented from acting on a part or all of the overlapping portion by means such as cutting, the back end portion of the absorbent body 56 does not contract in the width direction, so that the fit is further improved.
  • the elastic elastic member 72 may be fixed over the entire length of the sheet base material 71 in the longitudinal direction of the sheet (width direction of the diaper), but in order to prevent the sheet from shrinking or curling when attached to the diaper body, In the range of about 5 to 20 mm at the end in the front-rear direction (diaper width direction), it is preferable that the contraction force does not work or the elastic elastic member 72 does not exist.
  • the back-side elastic sheet 70 is sandwiched between the gather sheet 62 and the exterior sheet 12 on both sides in the width direction of the liquid-impermeable back sheet 11 and overlaps the liquid-impermeable back sheet 11.
  • the liquid-impermeable back sheet 11 and the absorber 56 between the top sheet 30 and the absorber 56, or between the liquid-impermeable back sheet 11 and the exterior sheet 12. It may be provided on the top sheet 30.
  • the impermeable back sheet 11 may be provided on the gather sheet 62 on both sides in the width direction.
  • the back-side stretchable sheet 70 is provided on the top sheet 30 and the sheet on the side in contact with the skin among the sheets constituting the back-side stretchable sheet 70 is composed of the sweat-absorbing / moisture-releasing sheet 20 described later, the number of members is increased. Can be reduced, which is preferable. Further, when the exterior sheet 12 is formed by stacking a plurality of sheet base materials, the entire back-side stretchable sheet 70 may be provided between the sheet base materials of the exterior sheet 12.
  • the absorbent body 56 in the disposable diaper described above extends in a predetermined direction with the first sheet 57 disposed on either the front or back side. It has the 2nd sheet
  • the first sheet 57 and the first sheet side bottom of each flange 58F of the second sheet 58 are joined to each other by a hot melt adhesive, welding, or the like at a predetermined interval in a direction orthogonal to the juxtaposition direction of the flanges 58F.
  • a joining portion 56b is formed, and between the joining portions 56b, the first sheet 57 and the second sheet 58 are not joined to form a tunnel-like cell 56C, and an absorbent material 59 is enclosed in each cell 56C.
  • at least a part of the absorbent material in each cell is movable in the cell.
  • the first sheet 57 and the second sheet 58 are bonded to each other at both ends in the longitudinal direction of each cell 56C by a hot melt adhesive, welding, or the like 56f, and each cell 56C is sealed.
  • Each ridge 58F of the second sheet 58 is not laid irregularly or laid down in a plurality of directions, but is laid down in one direction, and the cell 56C is in a crushed state (falling state). As the absorbent 56 swells, the cells 56C also expand and expand. As described above, when the flanges 58F of the second sheet 58 in the absorbent body 56 are provided in a state where they are laid down in one direction, the absorbent body 56 before absorption becomes very uniform and thin, so that a feeling of wearing and a feeling of touch can be obtained. In addition to being excellent, the volume of the cell 56C expands smoothly during absorption, so that absorption inhibition is less likely to occur.
  • the powdery absorbent material 59 is distributed and enclosed in a large number of cells 56C as in the prior art, even if the absorbent material 59 is used in a large amount and the amount of absorption is increased, the absorbent material 59 is unevenly distributed. Absorption of absorption and absorption inhibition are prevented. Further, at the time of non-absorption (before absorption), the apparent volume of the absorbent material 59 enclosed therein is smaller than the maximum volume in each cell 56C, and each of the volumes sufficient for the absorbent material 59 to swell is provided. Secured in the cell.
  • the first sheet 57 and the second sheet 58 may be located on the front side.
  • the absorber 56 is provided so that the first sheet 57 is on the surface side, there is an advantage that there is no bias in the diffusibility on the surface side of the absorber 56.
  • the absorber 56 is provided so that the second sheet 58 is on the surface side as illustrated, the surface side (liquid receiving surface side) of the absorber 56 by the flange 58F of the second sheet 58.
  • the surface area increases and the absorption rate is excellent.
  • the absorber 56 is provided so that the first sheet 57 is on the surface side, there is an advantage that there is no bias in the diffusibility on the surface side of the absorber 56.
  • the absorbent body 56C In order to further improve the absorption speed into the cell 56C, as shown in FIGS. 29 to 37, it contacts at least a part of the intermediate region in the front-rear direction and the intermediate direction in the absorbent body 56, particularly the excretion opening. In the position and the front and rear end portions of the absorbent body 56, it is also a preferable form that the wrinkles of the second sheet 58 are exposed on the surface of the diaper so as to be in contact with the wearer's skin. If comprised in this way, since a wrinkle will be formed in the diaper surface, the effect of the control of the dispersion
  • a surface side member such as the top sheet 30 is provided as shown in the figure, and a sufficiently large opening 31 is formed in a region in the middle in the front-rear direction and in the middle in the width direction in the region overlapping the absorber in the top sheet 30; It is preferable that the flange 58F of the second sheet 58 of the absorbent body 56 is exposed through the opening 31 so as to be in contact with the wearer's skin, and at least the peripheral portion of the absorbent body 56 is not exposed.
  • one large opening 31 is formed, but a plurality of openings 31 may be formed in the front-rear direction and the width direction. For example, the opening 31 is divided into a position where it abuts the excretion opening and the front-rear end of the absorber 56. You can also
  • the width A1 of the joint portion 56b in the juxtaposition direction of the flange 58F (the second sheet 58) is about 20 to 80% of the area of the absorber 56.
  • the front end of the opening 31 is preferably separated from the front end of the article by 5% or more of the total length Y of the article, and the rear end of the opening 31 is separated from the rear end of the article by 5% or more of the total length Y of the article. It is preferable.
  • an opening 31 is formed in a region on the inner side (intermediate in the front-rear direction and intermediate in the width direction) while leaving the peripheral edge of the surface side member (the top sheet 30 in the illustrated case).
  • surface side members top sheets 30 in the case of the illustrated embodiment
  • a region in the middle is formed as an opening 31 over the entire front-rear direction.
  • the number of members can be reduced by not providing any member such as the top sheet 30 that covers the surface side of the absorber 56.
  • such a structure can be obtained by simply removing the top sheet 30 in the form shown in FIGS. 29 to 32 and the form shown in FIGS.
  • the opening 31 is larger than the absorber 56. In the present invention, this is also a kind of opening.
  • the direction of the flange 58F of the second sheet 58 is not particularly limited, and as shown in FIG. 19, even if it extends along the front-rear direction of the article, FIG. As shown in FIG. 18, it may extend along the article width direction.
  • each of the ridges 58F serves as a weir that blocks movement of excrement, the diffusibility in the extending direction of the ridge 58F is improved, and leakage in the direction intersecting with the extending direction of the ridge 58F. Is less likely to occur.
  • each cell 56C becomes smaller than that in the case of extending in the front-rear direction as shown in FIG. Even if the absorbent material 59 moves in the cell 56C, there is an advantage that the degree of uneven distribution is relatively small.
  • the lodging direction of the cell 56C can also be determined as appropriate, and when the ridges 58F of the second sheet 58 extend along the width direction as shown in the figure, especially when the second sheet 58 is on the surface side.
  • the saddle 58F is tilted in one direction because it is easy to manufacture, it may be tilted in a plurality of directions. By doing in this way, the direction of excrement diffusion can be controlled.
  • the heel 58F is laid down toward the rear side at the front side, at least the front end portion of the absorber 56, and the heel 58F is laid down toward the front side at the rear side, at least the rear side portion of the absorber 56, excrement Since it becomes easy to spread
  • position when comprised in this way, it is preferable to arrange
  • Such a portion of the saddle 58F that changes the lying direction can be appropriately changed not only to the central portion in the front-rear direction but also to the front side or the rear side. Further, the lying direction of the heel 58F may be changed at a plurality of positions in the front-rear direction.
  • At least the front sheet may be liquid-permeable, but it is preferable that both have liquid-permeability.
  • a nonwoven fabric a sheet with a small hole, tissue paper, particularly crepe paper, and the like can be used, and a sheet from which the superabsorbent polymer particles do not escape is desirable.
  • hydrophilic ones including those provided with a hydrophilic agent are preferred.
  • nonwoven fabrics laminated nonwoven fabrics having a meltblown nonwoven fabric layer between spunbonded nonwoven fabric layers (for example, SMS nonwoven fabric, SMMS nonwoven fabric, etc.) are particularly suitable, and polypropylene, polyethylene / polypropylene composites, etc. can be used as the material.
  • Basis weight 5 ⁇ 40g / m 2, is desirable especially in 10 ⁇ 30g / m 2.
  • the liquid-impermeable material the same material as the liquid-impermeable back sheet 11 described above can be used.
  • the absorbent material 59 is a powdery granular material containing superabsorbent polymer particles, and if necessary, an absorbent material other than the superabsorbent polymer particles, for example, hydrophilic short fibers such as pulp fibers can be mixed.
  • the superabsorbent polymer particles are preferably 80% or more, and more preferably only superabsorbent polymer particles.
  • the superabsorbent polymer (SAP) particles are not particularly limited, but those having a water absorption of 40 g / g or more are suitable.
  • Superabsorbent polymer particles include starch, cellulose and synthetic polymers, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link. Or an acrylic acid (salt) polymer can be used.
  • the particle size of the superabsorbent polymer particles is preferably 1000 ⁇ m or less, particularly 150 to 400 ⁇ m.
  • the superabsorbent polymer particles those having a water absorption rate of 40 seconds or less are suitable. When the water absorption speed exceeds 40 seconds, so-called reversion in which the liquid supplied into the absorber 56 returns to the outside of the absorber 56 is likely to occur.
  • the superabsorbent polymer particles those having a gel strength of 1000 Pa or more are suitable. Thereby, the sticky feeling after liquid absorption can be suppressed effectively.
  • each part can be determined as appropriate, but the separation distance B1 between the adjacent joints 56b in the juxtaposed direction of the flange 58F is the same maximum when the width A1 of the joint 56b in the juxtaposed direction of the collar 58F is larger. Even if the cell 56C having a volume is formed, the cell 56C can be formed relatively shallow, so that the ridge 58F on the surface of the absorber 56 does not become too large, and the expansion of the cell volume at the time of absorption becomes smoother, which is preferable. .
  • the separation distance B1 between the joint portions 56b is preferably about 5 to 20 mm, and the width A1 of the joint portion 56b is preferably about 3 to 15 mm.
  • the interval (A1 + B1) between the flanges 58F is preferably about 8 to 30 mm, and more preferably about 10 to 20 mm.
  • the length of the second sheet 58 constituting each cell 56C in the juxtaposed direction of the flange 58F is preferably about 2 to 5 times the separation distance B1 between the joint portions 56b, and is preferably 2.5 to 4 More preferably, it is about double.
  • the length of the juxtaposition direction of the collar 58F is 1 time of the separation distance B1 between the junction parts 56b.
  • each cell 56C is preferably about 70 to 100% of the width 56X of the absorbent body 56.
  • the size in the article width direction of each cell 56C is preferably about 70 to 100% of the width 56X of the absorbent body 56.
  • FIG. 18 when the cell 56 ⁇ / b> C reaches both sides of the absorbent body 56 in the crotch portion, both sides of the crotch portion expand at the time of absorption and the fitting property is reduced. The effect may be hindered. Therefore, as shown in FIGS. 6, 17, and 19, it is preferable to form regions 56 ⁇ / b> N that do not have cells 56 ⁇ / b> C on both sides of the crotch portion.
  • the region 56N not having the cell 56C can be formed by crushing the ridges 58F of the second sheet and bonding the inner surfaces thereof with a hot-melt adhesive or welding 56g.
  • the length of the cell 56C located in the crotch portion is gradually shortened toward the middle in the front-rear direction of the crotch portion. It is preferable to do this.
  • Such a structure can be formed by crushing both end portions 56e of the collar 58F of the second sheet over a longer range toward the middle in the front-rear direction of the crotch portion and joining the inner surfaces to each other.
  • the cell 56C located on both sides is discontinuous at the crotch portion, and the length of the discontinuous portion 56N is It is preferable to make it longer as it goes outward in the width direction.
  • Such a structure can be formed by crushing the intermediate portion 56m of the second sheet collar 58F over a longer range in the width direction and joining the inner surfaces to each other.
  • the arrangement of the cells 56C can be determined as appropriate. 20 to 25, the cell spacing (the degree of separation / overlap) and the absorbent / cell maximum volume ratio (the apparent volume at the time of absorption saturation of the absorbent enclosed in the maximum volume of each cell) are shown. The difference of the change at the time of absorption by the difference was shown typically. In each figure, the uppermost figure shows the manufacturing stage, and the second figure from the top shows the state before absorption (however, for ease of understanding, ⁇ 58F stands slightly). The third figure shows the state in which the absorbent material 59 is swollen (however, the intermediate state before the absorption saturation), and the lowermost figure shows the state in which the absorbent material 59 has been saturated with absorption.
  • the cells 56C are preferably formed so as to partially overlap the adjacent cells 56C in a lying state. As shown in (a-1) to (a-3) in FIGS. 20 to 25, if the cells 56C are too far apart, a portion without the absorbent material 59 is formed between the adjacent cells 56C. Although there is a possibility that the absorption performance is lowered such that it is difficult to ensure or the absorption speed is slow, such a decline in absorption performance can be prevented if the cells 56C partially overlap each other. In addition, if the cells 56C are too far apart, a relatively large step is formed between the portion without the cell 56C and the cell 56C portion, which may adversely affect the feeling of wearing and touch.
  • interval of the cell 56C may be partially narrowed or widened in the juxtaposition direction of the collar 58F, it is preferable that it is constant from a viewpoint of manufacturability.
  • the maximum volume ratio of the absorbent material / cell can be obtained by changing the size of the cell 56C, the type of the absorbent material 59 (particularly, the difference in expansion ratio at the time of saturated absorption), the usage amount of the absorbent material 59, and the like. It can be determined accordingly.
  • the maximum volume ratio of the absorbent / cell is 70 to 120%, (a-1) to (a-2), (b-1) to (b-2), (c-1) in FIGS. ) To (c-2) and (d-1) to (d-2), in many cases, while suppressing the swelling inhibition of the absorbent material 59, the absorption amount is reduced to the conventional level. Since it can improve notably compared with an absorber, it is preferable.
  • the maximum volume ratio of the absorbent / cell is preferably 100% or more. In this case, however, swelling inhibition occurs when the absorbent material 59 in the cell 56C reaches the absorption saturation. It is not preferable to absorb to such a state, but rather, when such a state is reached, adjacent cells 56C come into contact with each other and absorption inhibition occurs (excrement is on the back side of cell 56C). It is more difficult to wrap around or the expansion of the adjacent cell 56C is hindered). Therefore, particularly when the maximum volume ratio of the absorbent / cell is 100% or more, (a-1) to (a-3) and (b-1) to (b-3) in FIGS. As shown, when each cell 56C is in a maximum volume state, it is preferable that adjacent cells 56C are arranged so as not to touch each other.
  • the absorption material / cell maximum volume ratio is less than 100%, that is, the configuration in which the cell 56C does not expand to the maximum volume even when the absorption material 59 is saturated in absorption is that the swelling inhibition of the absorption material 59 does not occur in principle.
  • the adjacent cells 56C are formed so as to partially overlap in the lying state, and the overlapping width A2 ′ of the adjacent cells 56C in the juxtaposed direction of the ridges 58F is:
  • the width is larger than the width A1 of the joint portion in the juxtaposed direction of the flanges 58F, the overlapping width of the adjacent cells 56C becomes sufficiently wide, and the cell 56C can maintain a state of overlapping with the adjacent cells 56C until a certain amount of absorption. Therefore, excrement can be supplied to more cells 56C, the use efficiency of the absorber 56 is good, and the amount of absorption per unit area is not reduced.
  • the absorbent material 59 often absorbs up to a saturated state at and near the excretion site of the wearer's excrement, so the absorbent material 59 is saturated and absorbed at least in the cell 56C of this site.
  • the maximum volume in the cell 56C is not exceeded, specifically, the absorbent / cell maximum volume ratio is about 80 to 100%.
  • the amount of the absorbent material 59 used is preferably determined as appropriate based on the relationship between the apparent volume at the time of absorption saturation of the absorbent material 59 and the maximum volume of the cell 56C, but from the viewpoint of the amount of absorption, the unit area of the absorbent body 56 It is preferable to secure 100 g / m 2 or more, particularly 150 g / m 2 or more in terms of per content.
  • the amount of sealing of the absorbent material 59 can be adjusted for each cell 56C.
  • the amount of the excretion site can be increased more than other sites.
  • men can increase the amount of the front side and women can increase the amount of the center portion.
  • the cell 56C in which the absorbent material 59 does not exist locally (for example, in a spot shape) in the planar direction of the absorber 56 can also be provided.
  • each ridge 58F of the second sheet 58 in the absorbent body 56 may be unfixed so that the whole can stand and fall freely, but when the ridge 58F is disturbed in the manufacturing process or the distribution process.
  • smooth expansion of the cell 56C becomes difficult, which may adversely affect the absorption performance.
  • a particular problem is that it is easily affected by the uneven distribution of the absorbent material 59 in the cell 56C.
  • the absorbent material 59 is non-fixed and movable, it moves downward in the vertical direction in the cell 56C due to gravity depending on the direction of the cell 56C during the product distribution process or in use.
  • the width direction of the cell 56C depends on the storage direction of the diaper and the movement of the wearer.
  • the absorbent material 59 may be biased at the end on one side.
  • leakage occurs due to a local decrease in absorption performance in a portion where the absorbent material 59 is small or a thickness of the absorber locally increases in a portion where the absorbent material 59 is large.
  • the thickness at the time of absorption in this portion increases. Even if the three-dimensional gather 60 is present, the height thereof is relatively low, and it is easy to leak over the three-dimensional gather.
  • each flange 58F of the second sheet 58 in the absorbent body 56 is not fixed (or peeled) so that both end portions 56e are fixed in a lying state and an intermediate portion between the fixed portions 56e can stand up. It may be fixed as possible).
  • the flanges 58F are fixed by simply joining the outer surfaces of the flanges 58F that are in contact with each other at both ends 56e of the second sheet 58F of the second sheet to the hot melt adhesive or welding from 56h or the like.
  • the first fixing structure is configured such that both sides 56 e in the width direction of the absorbent body 56 are folded back so that a hot melt adhesive or
  • welding means 56i such as welding
  • both end portions 56e of the flanges 58F of the second sheet 58 are fixed in a lying state.
  • each cell 56C can expand and stand up to its both end edges, that is, over the full width of the absorber 56.
  • the joining means 56i for the back surface of the absorber 56 is omitted, and the folded portion 56e of the absorber 56 is provided on the back surface side adjacent member, that is, the liquid-impermeable sheet 11 in the illustrated embodiment.
  • the width of the folded portion 56e is suitably about 10 to 25 mm, and the width of the joining means 56i is suitably about 0 to 15 mm.
  • This first structure is suitable for a pants-type disposable diaper, a pad-type disposable diaper, or the like that has no or little flap portion protruding around the absorber 56.
  • both side portions in the width direction of the absorbent body 56 are folded back to the front side, and the surface of the absorbent body 56 is connected to the surface of the absorbent body 56 via a joining means 56 i such as hot melt adhesive or welding.
  • a joining means 56 i such as hot melt adhesive or welding.
  • both end portions 56e of each flange 58F of the second sheet are fixed in a lying state by being fixed.
  • each cell 56C is restrained from expanding in the range of the folded portion 56e that is folded back and fixed to the surface side and hardly expands, but the other range, that is, the width of the absorber 56 is almost the same. In the full range, it will be able to expand and stand up.
  • the joining means 56i to the surface of the absorber 56 is not formed up to the edge of the folded portion 56e, and the edge of the folded portion 56e is separated from the surface of the absorber 56, the folded portion is formed on both sides in the width direction of the absorber 56.
  • a weir by 56e is formed and the side leakage prevention function is exhibited.
  • FIGS. 16 (e) and 27 when the joining means 56i for the surface of the absorber 56 is completely omitted, the folded portion 56e is bent and repelled by the sheets (the first sheet 57 and the second sheet 58).
  • the weir by the folded portion 56e becomes higher and deeper, and each cell 56C can expand and stand up over the full width of the absorber 56. become.
  • the folded portion 56e is used as a weir for preventing side leakage
  • the folded portion 56e separated from the surface of the absorbent body 56 is placed on the surface side adjacent member, that is, the top sheet 30 in the illustrated embodiment, and the folded portion 56e of the absorbent body 56 is used.
  • a joining means such as hot melt adhesive or welding.
  • the width of the folded portion 56e is suitably about 10 to 25 mm, and the width of the joining means 56i is suitably about 0 to 15 mm.
  • This second structure is also suitable for a pants-type disposable diaper, a pad-type disposable diaper, or the like that has no or few flaps that protrude around the absorber 56.
  • the first sheet side member overlaps with the first sheet 57 side of the absorbent body 56 over the entire front and rear direction on both sides in the width direction of the absorbent body 56. 12), and the first and second sheet side members protrude from the peripheral edge of the absorber 56, the both sides of the absorber 56 are sandwiched between the first and second sheet side members. It is also preferable to fix the both ends 56e of each ridge 58F of the second sheet in a lying state by fixing via a joining means 56k such as a hot melt adhesive or welding.
  • This third structure is suitable for a tape-type disposable diaper having a flap portion that protrudes around the absorber 56, a pad-type disposable diaper, and the like.
  • the cell 56C is located at both ends of the cell 56C, as can be seen from the main part after absorption shown in the upper part of FIG. 3 and the expansion line shown by the two-dot chain line in FIGS. Although it cannot expand, it has an expanded shape in which the expandable amount in the thickness direction increases from both ends toward the center. Therefore, even if the absorbent material 59 is unevenly distributed at the end of the cell 56C, the absorbent material 59 has a larger expandable amount in the thickness direction during the absorption expansion, and moves toward the center side of the cell 56C that is more easily expanded. However, it will gradually expand.
  • the second sheet 58 in order to prevent the absorbent material 59 from being unevenly distributed in the cell 56C, the second sheet 58 is provided along a direction orthogonal to the extending direction of the flange 58F.
  • a plurality of tack portions 55 where the folds extend are provided at intervals in the extending direction of the flange 58F.
  • the folding (folded mountain) of the tack protruding inside the cell 56C serves as a blocking wall that prevents the absorbent material 59 from moving, and the absorbent material 59 extends along the cell extending direction. An attempt to flow through the 56C is blocked. Therefore, uneven distribution of the absorbent material 59 in the cell 56C is effectively suppressed.
  • the tack portion 55 is a fold folded into a Z-shaped cross section by a fold along the direction orthogonal to the extending direction of the ridge 58F, and the outer surfaces facing each other so as not to unfold the folded state are hot melt adhesives. It may be fixed by bonding means such as welding or the like, but is preferably fixed weakly so as to be unfixed or peelable so as to be developed. In the latter case, as the cell 56C expands, the tack portion 55 expands from the folded state, and the volume of the cell 56C expands. Moreover, when the tack portion 55 extends between the cells 56C via the joint portion 56b as shown in the figure, the tack portion 55 is not only the portion located in the cell 56C but also the joint portion 56b. Since the portion including the portion located at the position is expanded, the adjacent cells 56C communicate with each other by the expanded tack portion 55. Therefore, the swelling of the absorbent material 59 is hardly inhibited.
  • the number of tack portions 55 is not particularly limited as long as it is plural, but it is provided so that the interval 55d of the tip 55e folded inside the cell 56C is about 1 to 3 times the parallel interval (A1 + B1) of the flanges 58F. preferable.
  • the arrangement of the tack portion 55 and the direction of the folding tip 55e can be determined as appropriate, as shown in detail in FIGS. 39 and 46, at least one tuck is provided on each side of the center in the longitudinal direction of the cell 56C. It is preferable to provide the portion 55, and in that case, it is preferable that the tip 55e of the folding into the cell 56C inside the at least one tack portion 55 on each side faces the center in the longitudinal direction of the cell. In the example shown in FIG. 46 (a), two tuck portions 55 are provided on both sides of the center in the longitudinal direction, and the leading end 55e of the fold into the cell 56C faces the center in the longitudinal direction of the cell. Yes. On the other hand, in the example shown in FIG.
  • two tack portions 55 are provided on both sides of the longitudinal center, but the tack portion on the longitudinal end portion side of the pair of tack portions on each side. 55, the front end 55e of the cell 56C is folded toward the center in the longitudinal direction of the cell, and the tack portion 55 at the center of the longitudinal direction is the longitudinal direction of the cell 56C. It faces the end side.
  • the leading end 55e of the adjacent tack portion 55 that folds into the cell may face the same direction in the longitudinal direction of the cell 56C. 46 (b) and 46 (d), it is also preferable that they face each other. Thereby, even if the absorbent material 59 located between the adjacent tack portions 55 flows, the absorbent material 59 is effectively blocked by the folding of the tack portions 55 on both sides thereof, so that the absorbent material is removed from the region sandwiched between the adjacent tack portions 55. The amount of 59 is very difficult to reduce, and the effect of preventing the uneven distribution of the absorbent material 59 in the cell 56C is further enhanced.
  • the front end 55e of the fold into the cell 56C is the center in the longitudinal direction of the cell. Since the absorbent material 59 in the central portion in the width direction does not decrease due to flow, for example, the absorbent body having a medium to high structure in which the absorbent material 59 is arranged in a larger amount in the central portion in the width direction than in the both sides in the width direction. Even in this case, it is possible to maintain a state where the absorbent material 59 in the central portion in the width direction is large.
  • the width of the tack portion 55 (the length of the portion where the sheets overlap) 55X can be determined as appropriate, but is smaller than the interval 55d of the leading end 55e of the folding inside the cell 56C (about 0.5 to 0.9 times 55d). ) Is desirable.
  • the length of the tack part 55 can also be determined as appropriate, and the tack part 55 in the illustrated form is formed with folds so as to cover the entire front and rear direction of the absorber 56, but a part in the front and rear direction (for example, a range including the crotch part).
  • the tack portion 55 extends between the cells 56C via the joint portion 56b, and the cells 56C on both sides communicate with each other through the inside of the tack portion 55 (between the sheets) in the joint portion, the second sheet The diffusibility of excrement in the direction orthogonal to the heel 58F of 58 is improved.
  • the tack portion 55 is provided on the second sheet 58 as shown in FIGS. 39 and 46 (a) to 46 (c), and is provided on the first sheet 57 as shown in FIG. 46 (d), or not shown. Can be provided on both the first sheet 57 and the second sheet 58. From the viewpoint of contact probability with the absorbent material 59, the back surface side sheet (the lower sheet in the vertical direction, in the form shown in FIG. 39, the first sheet 57) is effective in preventing the movement of the absorbent material 59 by the tack portion 55. Higher and higher for longer folds. From the latter point of view, as shown in FIG. 39 and FIGS. 46 (a) to (c), the tuck portion 55 is provided on the second sheet 58 so that the area of the sheet is relatively large and longer folding is achieved. Since it can form, it is preferable.
  • a tack portion 55 is formed in advance in at least one of the first sheet 57 and the second sheet 58, and after the wrinkles are drawn to the second sheet 58 and the absorbent material 59 is put in the wrinkles, By bonding the first sheet 57 to the second sheet 58, the cell absorber 56 having the tack portion 55 can be manufactured.
  • FIG. 50 shows the absorber 56 manufactured by this method.
  • a part of the absorbent material 59 is a hot melt adhesive. It is fixed to the second sheet 58 or the first sheet 57 through an adhesive layer 56t made of, etc., the remaining part is not fixed and can be moved, and the swelling of the absorbent material 59 can be prevented to some extent while inhibiting swelling.
  • the fixation of the absorbent material 59 includes not only the fixation that continues until after absorption, but also that the fixation is released and becomes free due to the absorption expansion of excrement.
  • the ratio is preferably about 30 to 80% by weight.
  • 51 to 53, 54, 55, 56 to 58, and 59 to 67 are attached to FIGS. 3 to 5, 7, 12, 14, 16 and 20 to 28, respectively. The difference is that a layer 56t is added.
  • the adhesive layer 56t is provided on the portion of the first sheet 57 exposed on the cell inner surface. Providing such an adhesive layer 56t makes it difficult for the absorbent material 59 to move due to the adhesive force (including frictional force) of the adhesive layer 56t, and also makes it difficult for the absorbent material 59 to move to move other absorbent materials 59. Will be blocked.
  • the proportion of the absorbent material 59 held by the adhesive layer 56t is preferably about 30 to 80% by weight.
  • the adhesiveness (tackiness) of the adhesive layer 56t is more than a certain level, the absorbent material 59 is firmly adhered and held, and swelling inhibition occurs, or the ridges 58F of the second sheet 58 are adhered to the adhesive layer 56t of the first sheet 57. There is a possibility that the expansion of the cell 56C may be inhibited. Moreover, if the adhesiveness of the adhesive layer 56t is too weak, the effect of preventing the movement of the absorbent material 59 becomes poor. Therefore, the adhesive layer 56t preferably has a loop tack adhesive strength of 5 to 40 N / 25 mm, particularly 15 to 30.
  • Such an adhesive layer 56t can be formed by applying a rubber-based hot-melt adhesive such as a styrene-isoprene copolymer and a styrene-butadiene copolymer, an acrylic adhesive, or the like.
  • a rubber-based hot-melt adhesive such as a styrene-isoprene copolymer and a styrene-butadiene copolymer, an acrylic adhesive, or the like.
  • the adhesive layer 56t may be provided partially, or may be provided in a pattern such as a dotted pattern, a staggered pattern, or the like.
  • the sheet 57 is preferably provided over the entire portion exposed to the inner surface of the cell 56C.
  • the adhesive layer 56t is not provided over the entire portion.
  • the absorbent material 59 is large, not all of the absorbent material 59 is held by the adhesive layer 56t, and hence the absorbent material 59 may be unevenly distributed.
  • the absorbent material 59 that is unevenly distributed on one side of the cell 56C gradually expands while moving toward the other side having an expandable space.
  • the friction between the second sheet 58 corresponding to the upper surface inside the cell 56C and the absorbent material 59 is not strengthened, the movement of the absorbent material 59 during the absorption expansion is hardly hindered. Therefore, it is preferable not to provide the adhesive layer 56t on the portion of the second sheet 58 exposed to the inner surface of the cell 56C.
  • the adhesive layer 56t can be formed alone, but if the joint portion and the adhesive layer 56t are integrally formed with the same adhesive, the joint portion and the adhesive layer 56t of the first sheet 57 can be formed at one time, and the manufacturing is performed. Is preferable because it becomes easy. That is, it can be manufactured by forming the adhesive layer 56t on substantially the entire surface of the first sheet 57 and bonding it to the second sheet 58 in which the absorbent material 59 is put in the flange 58F.
  • the absorbent material 59 is biased at the tip in the cell 56C located on the front side of the crotch, and the absorbent material 59 is biased on the tip of the cell 56C located on the rear side of the crotch.
  • the uneven distribution of the absorbent material 59 has little effect on the absorption function.
  • the average surface friction coefficient MIU is set to 0.2 or less, particularly 0.05 to 0.15 in the portion exposed to the inner surface of the cell 56C in the second sheet 58, It is preferable that the variation deviation MMD of the surface friction coefficient is 0.01 or less, particularly 0.003 to 0.008, and the surface roughness SMD is 10 micrometers or less, particularly 3 to 7 micrometers. These are all numerical values related to the cell extending direction.
  • the second sheet 58 when the friction between the portion exposed to the inner surface of the cell 56C in the second sheet 58 and the absorbent material 59 is somewhat weak, even if the absorbent material 59 is unevenly distributed in the cell 56C, the second sheet is subjected to absorption expansion. After contact with 58, it moves along the inner surface of the second sheet 58, the absorbent material 59 is likely to spread, and uneven distribution is reduced.
  • the second sheet 58 is preferably a nonwoven fabric having a melt-blown nonwoven fabric layer between the spunbond nonwoven fabric layer and the spunbond nonwoven fabric layer, such as an SMS nonwoven fabric or an SMMS nonwoven fabric, and has a fiber basis weight of 5 to 20 g. / M 2 , particularly 8 to 15 g / m 2 , and a load at a load of 0.5 g / cm 2 is preferably 0.05 to 0.25 mm, particularly 0.10 to 0.20 mm.
  • nonwoven fabric By using such a nonwoven fabric, it becomes difficult for the superabsorbent polymer particles enclosed inside to escape from the second sheet 58 side.
  • the same nonwoven fabric is preferably used for the first sheet 57, other materials may be used on the first sheet 57 side because it is difficult for the superabsorbent polymer particles to escape due to the adhesive layer 56t.
  • the top sheet 30 in order to prevent the top sheet 30 from leaning, it is preferable to fix the top sheet 30 to the absorber 56.
  • the collar 58F of the second sheet 58 is located on the top sheet 30 side.
  • the expansion and standing of the cell 56C may be hindered. Therefore, as shown in FIGS. 5, 14, 15, and 26, at least a portion between the fixing portions 56 b in the second sheet 58 of the absorbent body 56 has an interval corresponding to the arrangement interval of the cells 56 ⁇ / b> C in the front-rear direction. It is also proposed to intermittently join the top sheet 30.
  • the joining portion 56d with respect to the top sheet 30 is preferably the tip of the collar 58F of the second sheet as shown in FIG. 26 (a), but somewhat as shown in FIG. 26 (b). Even if they are misaligned, if the spacing between the cells 56C and the spacing between the joint portions 56d of the top sheet and the absorber correspond to each other, the top sheet 30 can be prevented from leaning, but the cells 56C expand smoothly. To be able to stand up.
  • the present invention can be used for absorbent articles in general, such as pants-type, tape-type, pad-type disposable diapers and sanitary napkins.
  • SYMBOLS 11 Liquid impervious back sheet, 12 ... Exterior sheet, 12r ... Folded part, 25 ... Print sheet, 200 ... Interior body, 30 ... Top sheet, 40 ... Intermediate sheet, 50 ... Absorbing element, 56 ... Absorber, 56C ... cell, 56b, 56d ... joint, 56t ... adhesive layer, 57 ... first sheet, 58 ... second sheet, 58F ... soot, 59 ... absorbent, 60 ... side solid gather, 62 ... gather sheet.

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

Lorsqu'un matériau absorbant est distribué de manière non uniforme à l'intérieur de cellules dans un absorbant comprenant le matériau absorbant enfermé dans un certain nombre de cellules, une diminution de la performance d'absorption dans une partie contenant une plus petite quantité du matériau absorbant et une augmentation de l'épaisseur de l'absorbant dans une partie contenant une plus grande quantité du matériau absorbant sont évitées tout en gardant les propriétés de l'absorbant. La présente invention concerne un article absorbant comprenant un premier feuillet (57), un second feuillet (58) dans lequel un certain nombre d'ondulations s'étendant dans une direction définie sont formées en parallèle, et un matériau absorbant (59) positionné entre le premier feuillet (57) et le second feuillet (58), sachant que : le premier feuillet (57) est lié à la partie inférieure du premier côté de feuillet de chacune des ondulations (58F) dans le second feuillet afin de former une partie de liaison (56b) ; entre ces parties de liaison (56b), le premier feuillet (57) n'est pas lié au second feuillet (58) et ainsi une cellule ressemblant à un tunnel (56c) est formée ; dans chacune des cellules (56c), un absorbant (56), dans lequel un matériau absorbant sous forme de poudre (59), contenant au moins des particules de polymère très absorbantes, est inclus tout en fournissant un espace suffisant, est fourni de telle manière que les ondulations individuelles (58F) du second feuillet (58) retombent dans une direction ; les deux extrémités de chacune des ondulations (58F) du second feuillet (58) sont fixées une fois retombées ; et une partie intermédiaire entre les parties de fixation (56b) peut être redressée.
PCT/JP2010/055638 2009-03-31 2010-03-30 Article absorbant WO2010113919A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020117025320A KR101672568B1 (ko) 2009-03-31 2010-03-30 흡수성 물품
CN201080015342.0A CN102378615B (zh) 2009-03-31 2010-03-30 吸收性物品

Applications Claiming Priority (8)

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JP2009-087942 2009-03-31
JP2009087942A JP5319366B2 (ja) 2009-03-31 2009-03-31 吸収性物品
JP2009-087941 2009-03-31
JP2009087943A JP5319367B2 (ja) 2009-03-31 2009-03-31 吸収性物品
JP2009-087943 2009-03-31
JP2009087941A JP5319365B2 (ja) 2009-03-31 2009-03-31 吸収性物品
JP2009-131114 2009-05-29
JP2009131114A JP4850272B2 (ja) 2009-05-29 2009-05-29 吸収性物品

Publications (1)

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WO2010113919A1 true WO2010113919A1 (fr) 2010-10-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9072807B2 (en) 2011-01-27 2015-07-07 Unicharm Corporation Absorbent article having pad configuration

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6349148B2 (ja) * 2014-05-27 2018-06-27 ユニ・チャーム株式会社 使い捨ておむつ
JP6560015B2 (ja) * 2014-05-30 2019-08-14 花王株式会社 使い捨ておむつ
JP6175175B1 (ja) * 2016-09-30 2017-08-02 大王製紙株式会社 使い捨て着用物品の伸縮構造及びその形成方法
JP6396527B1 (ja) * 2017-03-21 2018-09-26 大王製紙株式会社 吸収体
EP3662878A4 (fr) * 2017-08-04 2021-05-05 Zuiko Corporation Procédé de fabrication de corps absorbant, dispositif de fabrication de corps absorbant et corps absorbant
CN111374832B (zh) * 2018-12-29 2022-12-30 尤妮佳股份有限公司 吸收性物品
JP7187352B2 (ja) * 2019-02-27 2022-12-12 大王製紙株式会社 吸収性物品
JP7159144B2 (ja) * 2019-09-27 2022-10-24 大王製紙株式会社 吸収性物品
CN111184607A (zh) * 2020-02-21 2020-05-22 湖北丝宝股份有限公司 一种吸收制品

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0690977A (ja) * 1992-08-13 1994-04-05 Weyerhaeuser Co シート状吸収体
JPH09327479A (ja) * 1996-06-10 1997-12-22 Kao Corp 吸水性シート及びその製造方法並びにそれを用いた吸収性物品
JPH10506333A (ja) * 1994-06-30 1998-06-23 キンバリー クラーク ゲゼルシャフト ミット ベシュレンクテル ハフツング 波形ウェブ及び波形ウェブからなる吸収性物品の製造方法及び装置
JPH10314217A (ja) * 1997-05-15 1998-12-02 Nippon Kyushutai Gijutsu Kenkyusho:Kk チューブ状吸収体およびそれを備えた吸収体製品
JP2001037808A (ja) * 1999-07-29 2001-02-13 Toyo Eizai Corp 使い捨てパンツ
JP2003265525A (ja) * 2002-03-13 2003-09-24 Daio Paper Corp 体液吸収性物品
JP2004313580A (ja) * 2003-04-18 2004-11-11 Livedo Corporation 使い捨て吸収性物品
JP2005137648A (ja) * 2003-11-07 2005-06-02 Uni Charm Corp 吸収性物品およびこれを用いた使い捨ておむつ
JP2007175376A (ja) * 2005-12-28 2007-07-12 Creative Kamiya Kk 液体吸収製品

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4643727A (en) * 1985-01-07 1987-02-17 Rosenbaum Richard J Absorbant pad
US4699808A (en) 1986-08-15 1987-10-13 Personal Products Company Method and apparatus for providing powder into fibrous web structures
DK169670B1 (da) 1992-12-22 1995-01-09 Cheminova Agro As Fremgangsmåde til fremstilling af 2,3,5,6-tetrachlorpyridin
JP3190761B2 (ja) 1993-03-16 2001-07-23 ユニ・チャーム株式会社 体液処理用品およびその製造方法
US5451219A (en) * 1993-07-28 1995-09-19 Paragon Trade Brands, Inc. Stretchable absorbent article
US5643238A (en) * 1995-09-29 1997-07-01 Paragon Trade Brands, Inc. Absorbent core structure comprised of storage and acquisition cells
US6175056B1 (en) * 1996-04-29 2001-01-16 The Procter & Gamble Company Disposable absorbent article having an expanding topsheet and being capable of self-shaping in use
JP3499375B2 (ja) 1996-07-02 2004-02-23 ユニ・チャーム株式会社 吸収シートおよびその製造方法
TW527180B (en) * 2001-02-02 2003-04-11 Daio Paper Coporation Body fluid absorbing article and method of manufacturing the article
US20060202379A1 (en) 2005-03-11 2006-09-14 Rachelle Bentley Method of making absorbent core structures with encapsulated superabsorbent material
US20060206073A1 (en) 2005-03-11 2006-09-14 Crane Patrick L Insitube-formed absorbent core structures

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0690977A (ja) * 1992-08-13 1994-04-05 Weyerhaeuser Co シート状吸収体
JPH10506333A (ja) * 1994-06-30 1998-06-23 キンバリー クラーク ゲゼルシャフト ミット ベシュレンクテル ハフツング 波形ウェブ及び波形ウェブからなる吸収性物品の製造方法及び装置
JPH09327479A (ja) * 1996-06-10 1997-12-22 Kao Corp 吸水性シート及びその製造方法並びにそれを用いた吸収性物品
JPH10314217A (ja) * 1997-05-15 1998-12-02 Nippon Kyushutai Gijutsu Kenkyusho:Kk チューブ状吸収体およびそれを備えた吸収体製品
JP2001037808A (ja) * 1999-07-29 2001-02-13 Toyo Eizai Corp 使い捨てパンツ
JP2003265525A (ja) * 2002-03-13 2003-09-24 Daio Paper Corp 体液吸収性物品
JP2004313580A (ja) * 2003-04-18 2004-11-11 Livedo Corporation 使い捨て吸収性物品
JP2005137648A (ja) * 2003-11-07 2005-06-02 Uni Charm Corp 吸収性物品およびこれを用いた使い捨ておむつ
JP2007175376A (ja) * 2005-12-28 2007-07-12 Creative Kamiya Kk 液体吸収製品

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9072807B2 (en) 2011-01-27 2015-07-07 Unicharm Corporation Absorbent article having pad configuration

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KR101672568B1 (ko) 2016-11-03
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CN102378615B (zh) 2016-01-20

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