WO2017056610A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2017056610A1
WO2017056610A1 PCT/JP2016/069459 JP2016069459W WO2017056610A1 WO 2017056610 A1 WO2017056610 A1 WO 2017056610A1 JP 2016069459 W JP2016069459 W JP 2016069459W WO 2017056610 A1 WO2017056610 A1 WO 2017056610A1
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WO
WIPO (PCT)
Prior art keywords
width direction
point
skin side
absorber
absorbent article
Prior art date
Application number
PCT/JP2016/069459
Other languages
English (en)
Japanese (ja)
Inventor
工藤　淳
健太 谷口
望 寺杣
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2017056610A1 publication Critical patent/WO2017056610A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • 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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
    • 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
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to an absorbent article.
  • Sanitary napkins are known as absorbent articles that absorb excreted fluid such as menstrual blood.
  • This sanitary napkin has a longitudinal direction, a width direction, and a thickness direction perpendicular to each other, and a liquid absorbent fiber is a main material between a liquid-permeable top sheet and a liquid-impermeable back sheet. It has an absorber (absorbent core).
  • Patent Document 1 describes a good fit to the user's vaginal opening (perineum) by bending the central portion of the absorbent body in the width direction so as to rise to the skin surface side. Absorbent articles are described. At this time, it is preferable that the center of the absorbent body in the width direction is bent so as to rise to the skin surface side, and the outer side in the width direction is bent to the non-skin surface side to be along the user's body.
  • the widthwise central portion of the absorbent body is raised on the non-skin surface side, or the curve on the laterally outer side of the absorbent body is provided on the laterally outer side. It tends to occur starting from the compressed part along the longitudinal direction, and the shape of the absorbent article is curved at a part that does not match the shape of the user's body, so the user feels uncomfortable or the excretion fluid is There was a risk of leaking.
  • the present invention has been made in view of the above problems, and is to improve the fit of an absorbent article with an absorbent article having a shape according to the user's body.
  • the main invention for achieving the above object is: An absorbent article having a longitudinal direction, a width direction, and a thickness direction orthogonal to each other, and having a liquid absorbent fiber, and a liquid permeable sheet covering the absorbent body from the skin side in the thickness direction.
  • the said absorber has the linear induction
  • the said linear The guide portion includes a recess on at least the non-skin side, and a plurality of point-like recesses are provided on at least one of the skin side and the non-skin side of the absorber, and the width direction of the linear guide portion is In the center, the distance from the skin side surface of the absorbent article to the linear guide portion is smaller than the distance from the non-skin side surface of the absorbent article to the linear guide portion, and the plurality of point-like recesses are A first row along the longitudinal direction on one side of the width direction, and the width direction Forming a second row adjacent to the first row, forming the first row and the second row on the other side in the width direction, and an edge of the point-like recess belonging to the first row
  • the absorbent article is characterized in that a distance in the
  • the distance from the skin side surface of the absorbent article of the linear guide portion provided in the center portion in the width direction to the linear guide portion is the distance from the non-skin side surface of the absorbent article to the linear guide portion.
  • a plurality of dot-shaped concave portions are formed on one side and the other side in the width direction, respectively, so as to form a first row along the longitudinal direction and a second row adjacent to the first row in the width direction.
  • the central part is easily raised to the skin surface side by the linear guide part, and both sides in the width direction of the linear guide part are on the non-skin surface side in the part corresponding to the body shape of one of the rows of dotted concave parts. It becomes easy to curve and can improve the fit of an absorptive article.
  • FIG. 1 is a front view of the sanitary napkin 1 as viewed from the skin side in the thickness direction.
  • FIG. 2 is a plan view of the napkin 1 viewed from the non-skin side in the thickness direction.
  • FIG. 3 is a schematic cross section taken along line AA in FIG.
  • FIG. 4 is a plan view of the absorbent body 10 as seen from the non-skin side in the thickness direction.
  • FIG. 5A is a schematic cross-sectional view in which an absorber point squeezed portion ED10 is formed in a portion of the absorber 10 indicated by arrows BB in FIG.
  • FIG. 5B is a schematic cross-sectional view in which the linear guiding portion 15 is formed in the absorber 10 at the portion indicated by the arrow BB in FIG.
  • FIG. 5C is a schematic cross-sectional view in which the top sheet 20 and the back sheet 30 are laminated on the absorber 10 at the portion indicated by arrows BB in FIG.
  • FIG. 5D is a schematic cross-sectional view in which the main body point-like compressed portion ED20 is formed on the napkin 1 at the portion indicated by arrows BB in FIG.
  • FIG. 6A is a diagram illustrating a usage mode of the napkin 1.
  • FIG. 6B is a diagram illustrating the shape change of the napkin 1.
  • FIG. 7A is a diagram for explaining the absorber point pressing unit ED10 and the deformation target region Z.
  • FIG. 7B is a diagram for explaining the absorber point-like compressed portion ED10 and the deformation target region Z of the present embodiment.
  • FIG. 7C is a diagram for explaining states of the ideal absorber point-like squeezed portion ED10 and the deformation target region Z of the present embodiment.
  • FIG. 8 is a schematic cross-sectional view of the absorber point pressing unit ED10 and the linear guiding unit 15 in FIG. 5D.
  • FIG. 9A is a diagram illustrating the arrangement of the absorber point-like squeezed portion ED10.
  • Drawing 9B is a figure explaining arrangement of main part point crushing part ED20.
  • FIG. 10 is a schematic diagram of the absorber squeezed portion ED10 viewed from the skin side in the thickness direction of the absorber 10.
  • FIG. FIG. 11 is a diagram illustrating the relationship between the linear guiding portion 15 and the linear pressing portion EL and the bonding portions 40c and 40w.
  • An absorbent article having a longitudinal direction, a width direction, and a thickness direction orthogonal to each other, and having a liquid absorbent fiber, and a liquid permeable sheet covering the absorbent body from the skin side in the thickness direction.
  • the said absorber has the linear induction
  • the said linear The guide portion includes a recess on at least the non-skin side, and a plurality of point-like recesses are provided on at least one of the skin side and the non-skin side of the absorber, and the width direction of the linear guide portion is In the center, the distance from the skin side surface of the absorbent article to the linear guide portion is smaller than the distance from the non-skin side surface of the absorbent article to the linear guide portion, and the plurality of point-like recesses are A first row along the longitudinal direction on one side of the width direction, and the width direction Forming a second row adjacent to the first row, forming the first row and the second row on the other side in the width direction, and an edge of the point-like recess belonging to the first row
  • the absorbent article is characterized in that a distance in the
  • the distance from the skin side surface of the absorbent article to the linear guide portion of the linear guide portion provided at the center in the width direction is linearly guided from the non-skin side surface of the absorbent article.
  • the plurality of dot-shaped concave portions are formed on one side and the other side in the width direction, respectively, along the longitudinal direction and the second row adjacent to the first row in the width direction.
  • the distance in the width direction between the edge of the point-like recess belonging to the first row and the edge of the point-like recess belonging to the second row is made smaller than twice the length in the thickness direction of the absorbent article.
  • the width direction center part is easily raised to the skin surface side by the linear guide part, and both sides in the width direction of the linear guide part are non-parts corresponding to the shape of the body in one of the rows of dotted recesses. It becomes easy to curve to the skin surface side, and the fit of the absorbent article can be improved.
  • the central position in the thickness direction of the central portion of the linear guide portion is positioned closer to the skin side in the thickness direction than the central position in the thickness direction of the central portion of the point-like recess. It is desirable to do.
  • the central position in the thickness direction of the central part of the linear guide portion of the absorbent article is determined.
  • the linear guide portion bends toward the skin side before the point-like recess, and the user's vaginal opening Can be fitted.
  • the center position of the point-like recess is closer to the center position of the absorbent article in the thickness direction than the center position of the linear guide portion.
  • the central position of the dot-shaped recess is provided closer to the central position in the thickness direction of the absorbent article than the central position of the linear guide portion.
  • a liquid-impermeable sheet that covers the absorbent body from the non-skin side in the thickness direction, and a wing portion that protrudes outward from the liquid-impermeable sheet in the width direction.
  • a non-skin side of the wing portion in the thickness direction is provided with a wing adhesive portion for fixing the wing portion to underwear, and the length of the linear guide portion in the longitudinal direction is It is desirable that the length of the wing bonding portion is longer than the length in the longitudinal direction.
  • an interval between edges of the point-like recesses adjacent to each other in the width direction is preferably shorter than the length of the point-like recesses.
  • the distance between the edges of the adjacent point-like recesses is shorter than the length of the point-like recesses, so that the distance between the edges of the adjacent point-like recesses is dotted.
  • more point-like concave portions can be provided as starting points that curve toward the non-skin side, and can be fitted to the user's body.
  • the distance between the centers of the point-like recesses adjacent to each other in the width direction is uniform.
  • the absorbent article has a liquid-impermeable sheet that covers the absorbent body from the non-skin side in the thickness direction, and the liquid-impermeable sheet has an adhesive on the non-skin side in the thickness direction.
  • a dotted adhesive formed on the outermost side in the width direction among the plurality of dotted concaves has a body adhesive part that is an applied region, from the outer end in the width direction of the main body adhesive part, It is desirable to be provided outside the width direction.
  • the spot-like recesses are formed in the width direction of the absorbent body as compared with the region fixed to the underwear. This increases the area that is used and improves the rigidity of the absorber.
  • the absorbent article has a liquid-impermeable sheet that covers the absorbent body from the non-skin side in the thickness direction, and the liquid-impermeable sheet has an adhesive on the non-skin side in the thickness direction. It has a main body adhesive portion that is a coated region, and the absorbent body and the liquid-permeable sheet are joined by a linear concave portion along the longitudinal direction, and a central portion in the longitudinal direction of the absorbent article
  • the linear recess is provided on the outer side in the width direction from the outer end in the width direction of the main body bonding portion.
  • the non-skin side starts from the linear concave portion due to the force applied to the inner side in the width direction during use. Therefore, it is possible to make the absorbent article fit more because it can be bent toward the non-skin side starting from the point-like recess.
  • the absorbent body has an absorbent core and a sheet member provided on the skin side of the absorbent core, and the plurality of point-like recesses are formed in the absorbent body and the liquid permeable material.
  • a plurality of main body point-like recesses joining the absorbent sheet, and a plurality of absorber point-like recesses joining the absorbent core and the sheet member, and in the width direction, in the width direction It is desirable that the distance between the centers of the adjacent absorber point-like recesses is narrower than the distance between the centers of the body point-like recesses adjacent in the width direction.
  • the absorber points per unit area of the absorber are reduced by narrowing the interval between the centers of the adjacent absorber point-like recesses than the interval between the centers of the adjacent main body point-like recesses.
  • the number of the concave portions can be increased, and the rigidity of the absorbent body can be further improved.
  • the relatively small number of the main body point-like concave portions can give the absorbent article a refreshing appearance. it can.
  • the plurality of absorber recesses include the absorber recesses in which the most recessed portion from the skin side is separated from the liquid-permeable sheet by a predetermined distance in the thickness direction.
  • a plurality of absorber recesses have an absorber recess in which the most recessed portion is separated from the liquid-permeable sheet by a predetermined distance in the thickness direction, thereby absorbing liquid.
  • a portion where the absorbent body and the liquid permeable sheet are not in contact with each other is provided, and stickiness due to liquid on the surface of the liquid permeable sheet can be reduced.
  • sanitary napkin 1 (hereinafter referred to as “napkin 1”) will be described as an example of the absorbent article according to the present embodiment.
  • a sanitary napkin will be described as an example of the absorbent article, but the absorbent article of the present embodiment also includes a so-called cage sheet (for example, a panty liner) and the like. It is not limited to napkins.
  • FIG. 1 is a front view of the sanitary napkin 1 as seen from the skin side in the thickness direction.
  • FIG. 2 is a plan view of the napkin 1 viewed from the non-skin side in the thickness direction.
  • FIG. 3 is a schematic cross section taken along line AA in FIG.
  • the “longitudinal direction” along the product longitudinal direction of the napkin 1 the “width direction” orthogonal to the longitudinal direction along the product lateral direction of the napkin 1, the longitudinal direction and the width direction, respectively. It is defined as the “thickness direction” orthogonal to each other.
  • the longitudinal direction has a “front side” that is the stomach side of the user when the napkin 1 is used, and a “rear side” that is the back side of the user.
  • the thickness direction is the “skin side” (also referred to as “upper side”), which is the side that contacts the wearer's skin when the napkin 1 is worn (also referred to as “upper side”), and the opposite side (lower side in FIG. 3). And “non-skin side” (also referred to as “lower side”).
  • the XX line is the center line in the width direction
  • the YY line is the center line in the thickness direction.
  • the napkin 1 is a sheet-like member having a vertically long shape in plan view, and a liquid-permeable top sheet 20, a liquid-absorbing absorber 10, and a liquid-impermeable back sheet 30 from the skin side in the thickness direction. They are laminated in order toward the non-skin side (see FIG. 3).
  • Each of the members 20, 10, and 30 is joined to a member adjacent in the thickness direction with an adhesive HMA such as a hot melt adhesive.
  • the planar shape of the top sheet 20 and the back sheet 30 is the same shape, and the planar size is larger than the planar size of the absorbent body 10.
  • maintains between both sheets 20 and 30 by joining the outer-periphery edge parts 20e and 30e of both sheets 20 and 30 by adhesion
  • the wing part which is a fixing part provided when the napkin 1 is placed and fixed on an undergarment (not shown), has a substantially central portion in the longitudinal direction of the top sheet 20 and the back sheet 30 extending outward in the width direction. 20w and 30w are formed.
  • the absorbent body 10 has an absorbent core 11, a skin side sheet 12, and a non-skin side sheet 13.
  • the absorptive core 11 is a member that absorbs and holds liquid (excretion fluid) such as menstrual blood.
  • the absorbent core 11 has cellulosic absorbent fibers, which are liquid absorbent fibers, and thermoplastic resin fibers, and these fibers are mixed with each other in a plan view as shown by a broken line in FIG. It is formed into a vertically long shape.
  • pulp fibers or the like are used as the liquid absorbent fibers
  • composite fibers having a so-called sheath core structure in which the sheath is polyethylene (PE) and the core is polyethylene terephthalate (PET) are used as the thermoplastic resin fibers.
  • a rayon fiber may be used as this liquid absorptive fiber
  • a single fiber of polypropylene (PP) or a single fiber of PE may be used as the thermoplastic resin fiber.
  • PP polypropylene
  • PE polypropylene
  • PE polypropylene
  • PE polypropylene
  • the skin side sheet 12 is a sheet member having substantially the same shape as the absorbent core 11 and is joined by an adhesive HMA so as to cover the skin side surface of the absorbent core 11 (FIG. 3).
  • a flexible sheet having excellent liquid permeability such as a nonwoven fabric such as an air-through nonwoven fabric or a tissue paper
  • the non-skin side sheet 13 is a sheet member having substantially the same shape as the absorbent core 11 and is joined by an adhesive HMA so as to cover the non-skin side surface of the absorbent core 11 (FIG. 3).
  • a non-woven fabric such as SMS (spunbond / meltblown / spunbond) non-woven fabric or a flexible sheet such as tissue paper is used.
  • FIG. 4 is a plan view of the absorber 10 as seen from the non-skin side in the thickness direction.
  • the absorbent body 10 is provided with a plurality of absorbent body point pressing parts ED ⁇ b> 10, and the rigidity of the absorbent body 10 is increased.
  • the planar shape of the absorber squeezed portion ED10 is an ellipse and is a staggered arrangement pattern, but this is not a limitation.
  • the absorber 10 is a so-called thin absorber having a thickness of 3 mm or less, preferably 2 mm or less.
  • the linear guide part 15 along the longitudinal direction is formed in the absorber 10 at the center part in the width direction.
  • the linear guide part 15 is a pressing part formed in a straight line over the entire length in the longitudinal direction of the absorbent body 10, so that the absorbent body 10 bends to the skin side in the thickness direction starting from the linear guide part 15. Be guided to.
  • the details of the absorber point pressing unit ED10 and the linear guiding unit 15 will be described later.
  • the top sheet 20 is a member that comes into contact with the user's skin when the napkin 1 is used, and allows liquid such as menstrual blood to permeate from the skin side in the thickness direction to the non-skin side and move to the absorber.
  • a liquid-permeable flexible sheet of an appropriate nonwoven fabric such as an air-through nonwoven fabric is used.
  • a plurality of pressing parts (a linear pressing part EL20 and a main body point pressing part ED20) are formed on the skin side surface of the top sheet 20 from the skin side. And the absorber 10 are squeezed together in the thickness direction and joined and integrated.
  • a plurality of linear compressed parts EL20 are formed along the outer peripheral edge of the absorbent body 10, and have a substantially annular shape that is long in the longitudinal direction as a whole.
  • the main body point squeezed portion ED20 has an elliptical shape, and is formed discretely in a substantially closed region where the linear squeezed portion EL20 is partitioned on the top sheet 20.
  • the main body point squeezed portion ED20 has an elliptical shape, but is not limited thereto. Details of the main point squeezed portion ED will be described later.
  • the back sheet 30 suppresses the liquid permeated through the top sheet 20 and absorbed by the absorbent body 10 when the napkin 1 is used from exuding to the clothing side (non-skin side) such as underwear.
  • a liquid-impermeable flexible sheet of an appropriate resin film such as polyethylene (PE) is used.
  • a wing adhesive portion 40 w and a main body adhesive portion 40 c for attaching and fixing the napkin 1 to underwear or the like when the napkin 1 is used.
  • the wing bonding portion 40w is a pair of bonding portions formed in a substantially rectangular shape on the non-skin surface side of the wing portion 30w of the backsheet 30.
  • the main body bonding portion 40c is formed in a portion between the pair of wing bonding portions 40w in the width direction, for example, as shown in FIG. 2, in a portion where the back sheet 30 and the absorbent body 10 overlap with each other. It is formed by applying an appropriate adhesive HMA to the band-shaped region.
  • the absorbent body 10 When the napkin 1 is used, the absorbent body 10 is positioned with respect to the user's body by attaching the napkin 1 together with the underwear while the main body adhesive portion 30c is attached to the inside of the crotch portion (crotch portion) of the underwear. Do not slip.
  • the wing bonding portion 40w is formed in, for example, a substantially rectangular shape by applying an appropriate adhesive HMA to the region of the wing portion 30w.
  • the napkin 1 When the napkin 1 is used, the napkin 1 is fixed so that the wing portion 30w (20w) is bent to the non-skin side and the wing adhesive portion 40w is affixed to the outside of the crotch portion of the underwear. Suppress.
  • absorber point squeezing part ED10 and main part point squeezing part ED20 are each point squeezing parts, and all are "point squeezing parts".
  • spot-like here includes the area
  • punctate pressing part ED10 is provided by squeezing in the thickness direction from the skin side or a non-skin side, and is a dotted
  • the linear guide part 15 is a linear pressing part along the longitudinal direction, and includes regions formed on both sides of the center line in the width direction of the absorbent body 10.
  • the linear guide part 15 is substantially rectangular and has a predetermined area.
  • derivation part 15 is a linear recessed part with which the non-skin side was dented provided by pressing in the thickness direction from the non-skin side.
  • FIGS. 5A to 5D are diagrams illustrating the formation of the point pressing parts ED10, ED20, and the linear guiding part 15.
  • FIG. 5A is a schematic cross-sectional view in which an absorber point squeezed portion ED10 is formed in a portion of the absorber 10 indicated by arrows BB in FIG.
  • FIG. 5B is a schematic cross-sectional view in which the linear guiding portion 15 is formed in the absorber 10 at the portion indicated by the arrow BB in FIG.
  • FIG. 5C is a schematic cross-sectional view in which the top sheet 20 and the back sheet 30 are laminated on the absorber 10 at the portion indicated by arrows BB in FIG.
  • 5D is a schematic cross-sectional view in which the main body point-like compressed portion ED20 is formed on the napkin 1 at the portion indicated by arrows BB in FIG. 5A, 5B, and 5C, the yy line is the center line of the absorber 10 in the thickness direction, and YY in FIG. 5D is the center line of the napkin 1 in the thickness direction. .
  • the absorber point pressing part ED10 is formed.
  • the absorbent body 10 before processing has a thickness t10 over the entire region.
  • Absorber punctate pressing part ED10 is formed by performing pressing processing.
  • the absorber 10 which squeezed the absorber point pressing part ED10 has the area
  • the center in the width direction of the region a has a thickness close to t10 or t10 in the thickness direction.
  • the absorbent spot-like compressed portion ED10 that is recessed from each of the skin side and the non-skin side in the thickness direction is formed.
  • the absorber squeezed portion ED10 is located at a substantially central portion in the thickness direction of the absorber 10.
  • punctate pressing part ED10 area
  • a liquid absorptive fiber is crushed by pressing and the density of a liquid absorptive fiber becomes higher than the area
  • derivation part 15 is formed by shaping and squeezing the center part of the width direction about the absorber 10 which formed the absorber dotted
  • the non-absorbent body 10 is provided on the skin side of the absorbent body 10 and has a convex roller (not shown) having a convex portion and a concave portion (groove portion) at a position facing the convex portion of the convex roller.
  • derivation part 15 is formed by letting the absorber 10 pass to the roll gap
  • the absorbent body 10 obtained by shaping and pressing the linear induction guiding portion 15 has a region c in which the linear induction portion 15 is newly formed.
  • the region c is recessed from each of the skin side and the non-skin side in the thickness direction.
  • the center in the width direction of the linear guiding portion 15 is the center cc
  • the thickness in the thickness direction of the center cc that is, the region c
  • the distance t15 between the upper surface 15t and the lower surface 15b of the linear guide portion 15 at the center cc is smaller than t10.
  • the linear guide portion 15 is located closer to the skin side in the thickness direction.
  • derivation part 15 the liquid absorptive fiber is crushed by pressing and the density of a liquid absorptive fiber becomes higher than the area
  • tED10 becomes smaller than t15 (tED10 ⁇ t15), and the density of the liquid absorbent fiber at the center bc of the absorber squeeze portion ED10 is equal to the liquid absorbent fiber at the center cc of the linear guide portion 15.
  • the density of the liquid absorbent fibers is higher in the region b than in the region c as a whole.
  • the top sheet 20 is laminated from the skin side of the absorbent body 10 and fixed by the adhesive HMA. Note that the adhesive HMA is omitted in FIGS. 5C and 5D.
  • the main body point squeezed portion ED20 is formed.
  • the top sheet 20 and the absorbent body 10 are squeezed together in the thickness direction from above the top sheet 20 to form the main body point-like squeezed portion ED20.
  • the napkin 1 is passed through a roll gap between a convex roller (not shown) having a plurality of protrusions and an anvil roller (not shown) having a flat surface, and pressing is performed from the skin side of the napkin 1. ( Figure 5D).
  • the back sheet 30 is laminated from the non-skin side, and the napkin 1 is formed by being fixed with the adhesive HMA.
  • the napkin 1 obtained by squeezing the main body point squeezed portion ED20 has a region d in which the main body point squeezed portion ED20 is newly formed.
  • the region d is recessed from each of the skin side and the non-skin side in the thickness direction, and when the center in the width direction of the main body squeezed compressed part ED20 is the center dc, the thickness in the thickness direction of the center dc, that is, the region
  • the distance tED20 between the upper surface ED20t and the lower surface ED20b of the main body point-like compressed part ED20 at the center dc of d is smaller than t10.
  • main body squeezed portion ED20 is located at a substantially central portion in the thickness direction of the napkin 1. Moreover, as for main body dotted
  • tED10 becomes larger than tED20 (tED10> tED20).
  • main body point squeeze part ED20 may be formed further from some absorber point squeeze parts ED10 among some absorber point squeeze parts ED10, it is not restricted to this.
  • Absorber point squeezing part ED10 and main part point squeezing part ED20 may be provided in each arbitrary position, and even if these point squeezing parts ED10 and ED20 are formed in the same position, they are provided in different positions. Also good.
  • a space S is formed as shown in 5D.
  • the upper surface ED10t of the absorber point-shaped compressed portion ED10 and the top sheet 20 are separated by a predetermined distance, and a space S is formed between the upper surface ED10t and the top sheet 20.
  • the space S provides a portion where the absorbent body 10 and the top sheet 20 do not come into contact with each other, and the absorbent body 10 in which the liquid is absorbed and the top sheet 20 located on the skin side are not in direct contact with each other, thereby reducing stickiness due to the liquid. This can reduce the discomfort felt by the user's skin.
  • FIG. 6 is a diagram illustrating a usage mode of the napkin 1.
  • FIG. 6B is a diagram illustrating the shape change of the napkin 1.
  • the shape of the napkin 1 changes as the user wears it.
  • 6B shows a state before use of the napkin 1
  • FIG. 6B shows a state of the napkin 1 in a normal mounting state
  • FIG. 6B shows a state where the napkin 1 is most folded.
  • the linear guide portion 15 As shown in the middle view of FIG. 6B. Protrudes to the skin side, and changes to a shape that curves to the non-skin side (a shape similar to “W”) starting from a predetermined portion outside in the width direction from the linear guiding portion 15.
  • the napkin 1 when the force to a width direction inner side becomes strongest from a user's crotch, the napkin 1 will become a shape by which the curved part to the non-skin side was folded like the lower figure of FIG. 6B.
  • the napkin 1 that can change in this way is desired to be deformed according to the shape of the user's body, such as prevention of leakage of excretory fluid and improvement of wearing feeling.
  • FIG. 8 is a schematic cross-sectional view of the absorber point pressing unit ED10 and the linear guiding unit 15 in FIG. 5D.
  • FIG. 9A is a diagram illustrating the arrangement of the absorber point-like squeezed portion ED10.
  • Drawing 9B is a figure explaining arrangement of main part point crushing part ED20.
  • FIG. 10 is a schematic diagram of the absorber squeezed portion ED10 viewed from the skin side in the thickness direction of the absorber 10.
  • the distance from the skin side surface of the napkin 1 to the linear guide portion 15 at the center cc in the width direction of the linear guide portion 15 is from the non-skin side surface of the napkin 1 to the linear guide portion 15. Less than distance. That is, in the center cc of the region c, when the distance from the upper surface of the top sheet 20 to the upper surface 15t of the linear guide portion is L1, and the distance from the lower surface of the back sheet 30 to the lower surface 15b of the linear guide portion 15 is L2, L1 is smaller than L2 (L1 ⁇ L2).
  • the center position of the thickness direction in the center part of the width direction of absorber squeezed compression part ED10 (center part of area
  • derivation part 15 (center of area
  • the point bED10 is more preferably closer to the center YY in the thickness direction of the napkin 1 than the point c15.
  • the absorber squeezed portion ED10 is provided in a substantially central portion in the thickness direction of the napkin 1 in the thickness direction, and has a structure that is relatively stable with respect to the force from the width direction. Have. Therefore, when a force is applied to the inner side in the width direction from the user's crotch, first, the linear guide portion 15 provided at a more unstable position rises to the skin side, and then further from the width direction.
  • the absorbent body squeezed portion 10 When a force is applied, the absorbent body squeezed portion 10 having a more stable structure than the linear squeezed portion 15 is bent toward the non-skin side starting from the starting point.
  • the linear guiding portion 15 when wearing, the linear guiding portion 15 first fits into the user's vaginal opening, and then, while wearing, the linear guiding portion 15 is in accordance with the shape of the user's body. It can be bent to the non-skin side starting from one row of the absorbent point squeezed parts ED10 on both sides, and can be transformed into a napkin 1 according to the user's body.
  • the thickness of the absorbent body 10 is suppressed to 3 mm or less and the rigidity is secured by forming the absorbent body point squeezed portion ED10 over the entire region of the absorbent body 10.
  • the absorbent body 10 absorbs excretory fluid such as menstrual blood when the napkin 1 is used, the absorbent body 10 is suppressed from expanding in the thickness direction.
  • the main body point-like pressing part ED20 is discretely provided, the top sheet 20 and the absorber 10 are joined more strongly, and the top sheet 20 and the absorber 10 are used at the time of use etc. And peeling.
  • the center interval s10 between the adjacent absorbent point squeezed portions ED10 is narrower than the center interval s20 between the adjacent main body point squeezed portions ED20 in the width direction.
  • the number of pressing parts (ED10) per unit area of the absorber 10 increases, and the rigidity of the absorber 10 can be further improved.
  • the impression on the external appearance of the napkin 1 can be made clearer by making the number of main body point squeeze parts ED20 visually recognizable from the external appearance of the napkin 1 smaller than the absorber point squeeze parts ED10.
  • the absorbent body point squeezed portion ED10 and the main body point squeezed portion ED20 are formed at the same position, it is possible to squeeze more firmly.
  • the space s between the upper surface ED10t and the top sheet 20 of the absorber point squeeze part ED10 as described above is formed by forming the absorber point squeeze part ED10 and the main body point squeeze part ED20 at different positions. Can be provided.
  • the absorbent point squeezed part ED10 when the length in the longitudinal direction of the absorber point squeezed part ED10 is Wm1 and the length in the width direction is Wm2, the absorbent point squeezed part ED10 is longer than Wm2.
  • the shape is elliptical (Wm1> Wm2).
  • interval Wb when the space
  • the absorber dotted compression part ED10 forms the row
  • the distance in the width direction between the edge of the absorber point squeezed portion ED10 belonging to this row L201 and the edge of the absorber point squeezed portion ED10 belonging to the row L202 adjacent to the row L201. Is the interval Wb, and the interval Wb is smaller than twice the thickness t of the napkin 1 (Wb ⁇ 2 ⁇ t).
  • the thickness t of the napkin 1 is the thickness of the napkin 1 in use, and refers to the thickness when one hour has passed after taking out from the packaged state and opening the trifold.
  • the thickness t is a dial thickness gauge ID-C1012C manufactured by Mitutoyo Corporation or equivalent, and the contact area is 20 cm 2 and the contact pressure is 3 gf / cm 2 (294 N / m 2 ). Can be set and measured.
  • the relationship between the interval Wb and the thickness t is due to the point that becomes a starting point for the absorber point-like compressed portion ED10 to bend toward the non-skin side.
  • the ideal deformation of the napkin 1 starts from a point K in the figure as shown in the middle and lower figures of FIG. 6B. It bends to the non-skin side and bends.
  • the region where this deformation occurs is a 2t range centered on the point K in the width direction as shown in the upper diagram of FIG. 6B, and this range is called a deformation target region Z.
  • FIG. 7A is a diagram for explaining the absorber point compression unit ED10 and the deformation target region Z.
  • FIG. 7B is a diagram for explaining the absorber point-like compressed portion ED10 and the deformation target region Z of the present embodiment.
  • FIG. 7C is a diagram for explaining states of the ideal absorber point-like squeezed portion ED10 and the deformation target region Z of the present embodiment.
  • the relationship between the absorber point-like compressed part ED10 and the deformation target region Z shown in FIG. 7A is because the edge interval Wb between the absorber point-like pressed parts ED10 adjacent in the width direction is larger than 2t (Wb> 2t).
  • Wb edge interval
  • Wb> 2t the edge interval
  • a state in which the deformation target region Z and the absorber squeezed portion ED10 do not overlap occurs.
  • the deformation of the napkin 1 that does not conform to the shape of the user's body may be bent at the outer row L in the width direction than the deformation target area Z or meandering in the deformation target area Z and bend. May occur.
  • the napkin 1 is deformed along the row L closest to the deformation target region Z, and is particularly deformed at the row L closer to the center in the width direction of the deformation target region Z. In this way, the deformation is performed at a position closer to the deformation target region Z and the straight line is bent along the row L, so that the napkin 1 can be deformed according to the shape of the body.
  • the relative positional relationship between the interval Wb and the deformation target region Z differs depending on the shape of the user's body. However, as in the present embodiment, when the interval Wb between the edges of the absorber squeezed portions ED10 adjacent in the width direction is smaller than 2t (Wb ⁇ 2t), at least a part of the interval Wb and the deformation target region Z is always obtained. Can be overlapped. Depending on the shape of the user's body and the like, for example, as shown in FIG. 7C, the center in the width direction of the deformation target region Z and the row L (the center in the width direction of the absorber squeeze ED10) are the same position. May also occur.
  • the napkin 1 is bent to the non-skin side at the center in the width direction of the deformation target region Z, and can maintain an ideal shape of the napkin 1 according to the shape of the user's body, a so-called “W” shape. it can.
  • FIG. 11 is a diagram illustrating the relationship between the linear guiding portion 15 and the linear pressing portion EL and the bonding portions 40c and 40w.
  • the length of the linear guide portion 15 in the longitudinal direction is longer than the length of the wing bonding portion 40w in the longitudinal direction. Thereby, it is easy to maintain the shape which protruded to the skin side of the linear induction
  • the main body bonding portion 40c in a region between the linear pressing portion EL20 (between the width direction) in the central portion in the longitudinal direction of the napkin 1. If the linear squeezing portion EL20 is formed at the inner side in the width direction from the outer end in the width direction of the main body bonding portion 40c at the center portion in the longitudinal direction of the napkin 1, the portion corresponding to the shape of the user's body is not used. Instead of bending to the skin side, it may be bent at the linear compression part EL20, or it may have a shape that does not conform to the shape of the user's body.
  • the region of the main body bonding portion 40c can be worn underwear. Since the napkin 1 and the underwear are integrally deformed, the portion is easily deformed according to the body, and is easily bent to the non-skin side at the absorbent point squeezed portion ED10. Therefore, the napkin 1 reduces the bending to the non-skin side starting from the linear pressing part EL20, and easily curves to the non-skin side starting from the absorber point pressing part ED10 in the region of the main body bonding part 40c. To do.
  • the absorber 10 is provided with the absorber dotted
  • the absorbent body point squeezed portion ED10 and the main body point squeezed portion ED20 have an elliptical shape, but the present invention is not limited thereto.
  • a circular shape, a rhombus shape, or the like can be appropriately modified.
  • the ease of bending to the non-skin side can be adjusted by appropriately adjusting the shape, area, interval, and the like of the point-like compressed parts ED10 and ED20.
  • a plurality of rows L are provided.
  • any one having at least two rows in the width direction of the linear guide portion 15 may be used.
  • this absorber point squeezing part ED10 is a part that can be a starting point that curves to the non-skin side
  • the absorber point squeezing part ED10 that enables deformation of the napkin 1 according to the shape of the user's body is determined in advance. It may be.
  • the napkin 1 according to the body of more users is enabled by forming the row
  • punctate pressing part ED10 along a longitudinal direction was made into the starting point which curves to the non-skin side
  • punctate pressing part ED20 along a longitudinal direction is provided. Or it is good also as a starting point which forms a row
  • the point squeezed portions ED10 and ED20 can be appropriately formed depending on the manufacturing process, appearance, and the like.
  • the napkin 1 is bent starting from the row L formed by the absorber point-like compressed portion ED10 (point-like concave portion), but is not limited thereto. You may make the starting point the row
  • punctate pressing part ED10 does not necessarily need more, and the absorber dotted
  • the fitting property of the napkin 1 can be improved by providing the point-like compressed parts (ED10, ED20) at the portion that can be the starting point of the curve.
  • sanitary napkins 1 sanitary napkins (napkins), 10 Absorber, 11 Absorbent core, 12 skin side sheet (sheet member), 13 non-skin side sheet, 15 linear guide, 15t upper surface, 15b lower surface, 20 Top sheet (liquid permeable sheet), 20t upper surface, 20e outer periphery, 20w wing, 30 Back sheet (liquid impervious sheet), 30b lower surface, 30e outer peripheral edge, 30w wing, 40c body adhesive part, 40w wing adhesive part, 201K crotch, 201He excretion opening, ED10 Absorber point squeezed portion (dot-like recess, absorber point-like recess), ED10t upper surface, ED10b lower surface, ED20 body point squeezed portion (body point dent depression), ED20t upper surface, ED20b lower surface, EL20 linear pressing part (linear concave part), L, L201, L202 row HMA adhesive, Z deformation target area

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

Abstract

L'invention concerne un article absorbant (1) qui comporte un corps absorbant (10) et une feuille perméable aux liquides (20). Le corps absorbant (10) comprend, dans la partie centrale de celui-ci et dans le sens de la largeur, une section de guidage linéaire (15) qui suit le sens de la longueur et qui sert à guider le pliage du corps absorbant (10) sur le côté peau. La section de guidage linéaire (15) est pourvue d'une partie en creux au moins sur le côté non-peau. Une pluralité de creux en forme de point (ED10) sont disposés sur le côté peau et/ou le côté non-peau du corps absorbant (10). La distance de la surface côté peau de l'article absorbant (1) à la section de guidage linéaire (15) au centre de la section de guidage linéaire (15), dans le sens de la largeur, est plus petite que la distance de la surface côté non-peau de l'article absorbant (1) à la section de guidage linéaire (15). La pluralité de creux en forme de point (ED10) forment des premières rangées dans le sens de la longueur et des secondes rangées adjacentes aux premières rangées dans le sens de la largeur sur un côté et sur l'autre côté de la section de guidage linéaire (15), dans le sens de la largeur. La distance dans le sens de la largeur entre les bords des creux en forme de point (ED10) appartenant aux premières rangées et les bords des creux en forme de point (ED10) appartenant aux secondes rangées est inférieure à deux fois la longueur de l'article absorbant (1) dans le sens de l'épaisseur de celui-ci.
PCT/JP2016/069459 2015-09-29 2016-06-30 Article absorbant WO2017056610A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015192078A JP6093828B1 (ja) 2015-09-29 2015-09-29 吸収性物品
JP2015-192078 2015-09-29

Publications (1)

Publication Number Publication Date
WO2017056610A1 true WO2017056610A1 (fr) 2017-04-06

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PCT/JP2016/069459 WO2017056610A1 (fr) 2015-09-29 2016-06-30 Article absorbant

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Country Link
JP (1) JP6093828B1 (fr)
WO (1) WO2017056610A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6101779B1 (ja) 2015-12-16 2017-03-22 ユニ・チャーム株式会社 吸収性物品

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11299827A (ja) * 1998-04-20 1999-11-02 Uni Charm Corp 吸収性物品
JP2004181085A (ja) * 2002-12-05 2004-07-02 Uni Charm Corp 縦長の吸収性物品
JP2004208919A (ja) * 2002-12-27 2004-07-29 Uni Charm Corp 圧縮溝と可撓部とを備えた吸収性物品
JP2009201878A (ja) * 2008-02-29 2009-09-10 Uni Charm Corp 吸収性物品
WO2011152391A1 (fr) * 2010-05-31 2011-12-08 ユニ・チャーム株式会社 Article absorbant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11299827A (ja) * 1998-04-20 1999-11-02 Uni Charm Corp 吸収性物品
JP2004181085A (ja) * 2002-12-05 2004-07-02 Uni Charm Corp 縦長の吸収性物品
JP2004208919A (ja) * 2002-12-27 2004-07-29 Uni Charm Corp 圧縮溝と可撓部とを備えた吸収性物品
JP2009201878A (ja) * 2008-02-29 2009-09-10 Uni Charm Corp 吸収性物品
WO2011152391A1 (fr) * 2010-05-31 2011-12-08 ユニ・チャーム株式会社 Article absorbant

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JP6093828B1 (ja) 2017-03-08

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