WO2016194245A1 - 吸収性物品 - Google Patents

吸収性物品 Download PDF

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Publication number
WO2016194245A1
WO2016194245A1 PCT/JP2015/073220 JP2015073220W WO2016194245A1 WO 2016194245 A1 WO2016194245 A1 WO 2016194245A1 JP 2015073220 W JP2015073220 W JP 2015073220W WO 2016194245 A1 WO2016194245 A1 WO 2016194245A1
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WO
WIPO (PCT)
Prior art keywords
sheet
width direction
region
pair
top sheet
Prior art date
Application number
PCT/JP2015/073220
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
政浩 柏木
沁一 穆
維 蒋
吉平 沈
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to KR1020177031528A priority Critical patent/KR101831753B1/ko
Priority to CN201580034668.0A priority patent/CN106456395B/zh
Publication of WO2016194245A1 publication Critical patent/WO2016194245A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
    • 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
    • A61F13/4704—Sanitary towels, incontinence pads or napkins having preferential bending zones, e.g. fold lines or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—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
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • 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
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • A61F13/47236—Sanitary towels, incontinence pads or napkins specially adapted for female use characterised by an unusual contour
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • A61F2013/51383—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability being adapted for female properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F2013/53765—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry

Definitions

  • the present invention relates to an absorbent article.
  • Patent Document 1 discloses a liquid-permeable surface material that contacts skin and allows permeation of body fluid such as menstrual blood, a leak-proof material that contacts shorts and prevents leakage of body fluid, and a surface material and a leak-proof material. What is provided with the liquid holding
  • the surface material directly covers the skin contact surface side and the side surface side of the absorber, and is fixed to each of the absorber and the leakproof material via a fixing agent on the non-skin contact surface side.
  • the absorbent body has a skin contact surface side and a side surface covered with a surface material, and a non-skin contact surface side is covered with a leak-proof material.
  • the present invention has been made in view of the above-described problems, and the object of the present invention is to suppress discomfort in the crotch and improve wearability and to suppress liquid leakage. Is to provide an absorbent article.
  • the main invention for achieving the above object has a longitudinal direction, a width direction, and a thickness direction, and covers the absorber from one side in the thickness direction of the absorber, which absorbs liquid.
  • Absorbency comprising a top sheet, a second sheet provided between the absorber and the top sheet in the thickness direction, and a back sheet provided on the other side of the absorber in the thickness direction
  • the top sheet has folded portions that are folded on both sides in the width direction, and a tip of the folded portion is positioned between the absorber and the back sheet in the thickness direction.
  • both end portions in the width direction of the second sheet are located between the absorber and the top sheet in the width direction. That is an absorbent article.
  • the present invention it is possible to suppress discomfort in the crotch and improve wearability, and to suppress liquid leakage.
  • FIG. 3A is a cross-sectional view taken along line IIIA-IIIA in FIG. 1
  • FIG. 3B is a cross-sectional view taken along line IIIB-IIIB in FIG.
  • An absorber that has a longitudinal direction, a width direction, and a thickness direction and absorbs liquid; a top sheet that covers the absorber from one side in the thickness direction of the absorber; and the thickness of the absorber
  • An absorbent article provided with a back sheet provided on the other side of the direction, wherein the top sheet has folded portions folded on both sides in the width direction, and the tip of the folded portion is It is joined to the back sheet by a pair of joints arranged in the width direction between the absorber and the back sheet in the thickness direction, and the pair of the joints in the front area and the rear area in the longitudinal direction.
  • the pair of joints are positioned on the inner side in the width direction than the pair of joints in the front region and the rear region. A portion corresponding to the portion can be secured in a wide area, and the contact pressure from the absorber received by both feet can be reduced. Therefore, the discomfort in the crotch is suppressed and the wearability of the absorbent article is improved.
  • the pair of joints are positioned on the outer side in the width direction than the pair of joints in the central region, so that the planar shape of the skin side surface that absorbs the liquid can be further secured. It is possible to suppress leakage of the liquid.
  • the position of the pair of joint portions in the front region and the rear region overlaps the position of the pair of joint portions in the central region in the longitudinal direction. Even when a force in the width direction is applied from both feet during wearing, the bonding between the top sheet and the back sheet is difficult to peel off.
  • the absorbent body includes an absorbent core having a constricted portion constricted inside in the width direction at least in the central region.
  • the distance in the width direction from the folded portion of the top sheet to the absorbent core is increased, and immediately after both feet receive contact pressure from the folded portion of the top sheet and both ends of the second sheet.
  • the situation of receiving the contact pressure from the absorbent core can be suppressed, and the contact pressure from the absorbent core received by both feet can be reduced.
  • At least one inner end of the pair of the joint portions of the front region and the rear region is in the longitudinal direction, the constriction start position of the constriction portion, or the constriction start It is desirable that it is arranged inside the position.
  • the constricted portion is provided when the absorbent article is worn. Even when a force in the width direction is applied to the portion where both feet are present, the bonding between the top sheet and the back sheet becomes more difficult to peel off.
  • the back sheet has a side sheet formed to extend outward in the width direction from the folded portion of the top sheet.
  • the extension part of the side sheet (part of the back sheet) that forms the wing part is not joined to the top sheet, so the extension part is bent to the non-skin side in the thickness direction and attached to the underwear
  • a situation in which the top sheet is pulled by the back sheet is avoided, and an uncomfortable feeling in the crotch when the absorbent article is worn can be suppressed.
  • Such an absorbent article further comprising a second sheet between the absorber and the top sheet in the thickness direction, at least in the center region in the longitudinal direction, both end portions in the width direction of the second sheet Is preferably located between the absorber and the top sheet in the width direction.
  • both ends of the second sheet are positioned between the absorber and the top sheet in the width direction in the central region in the longitudinal direction where the frequency of contact between both feet is high.
  • the absorbent body includes an absorbent core having a constricted portion that is constricted inside in the width direction in at least the central region, and in the central region, an end of the second sheet in the width direction. It is desirable that a gap is provided between the absorbent core and the absorbent core.
  • the absorbent article has a region where the top sheet and the second sheet exist and a region where only the top sheet exists in the thickness direction.
  • deformation occurs from the region where only the top sheet having lower rigidity than the region where the top sheet and the second sheet exist, and the region where the top sheet and the second sheet exist is in the thickness direction. Easier to get up. Therefore, since the contact pressure can be received from the entire surface that has risen, the contact pressure from the top sheet and the second sheet received by both feet is alleviated, and the uncomfortable feeling between the crotch is further suppressed.
  • both feet can receive contact pressure from the folded region having a surface wider than both end surfaces of the second seat, so that the crotch is larger than when receiving contact pressure from both end surfaces (edges). A sense of discomfort is more suppressed.
  • a joint portion that joins the top sheet and the second sheet in the thickness direction is located on the inner side in the width direction than the both end portions of the second sheet.
  • the top sheet and the second sheet are not joined in the thickness direction at the folded portion of the top sheet and the both ends of the second sheet, the degree of freedom of the fibers is increased, and both feet receive when using the absorbent article.
  • the feel is improved and the discomfort in the crotch is further suppressed.
  • the absorbent body includes an absorbent core having a constricted portion constricted inside in the width direction at least in the central region, and the top sheet and the second sheet are arranged in the width direction. It is desirable that the squeezed portion is squeezed and joined in the thickness direction on both sides, and the squeezed portion is preferably located outside the constricted portion in the width direction at least at the most constricted position of the constricted portion. .
  • the rigidity of the top sheet and the second sheet is increased at the position where the compressed portion is provided, and therefore, when both feet apply force in the width direction to the absorbent article, the top sheet is folded back starting from the compressed portion.
  • the both ends of the portion and the second sheet are likely to rise or fall in the thickness direction. Therefore, both feet can receive contact pressure from the entire surface rising or falling in the thickness direction, so the contact pressure from the top sheet and the second seat received by both feet is relaxed, and the Is more suppressed.
  • a sanitary napkin 1 (hereinafter simply referred to as napkin 1) will be described.
  • the absorbent article includes a so-called sheet such as a panty liner, and is not limited to a sanitary napkin.
  • FIG. 1 is a schematic plan view of a napkin 1 according to an embodiment of the present invention as viewed from the skin side in the thickness direction.
  • FIG. 2 is a schematic plan view of the napkin 1 viewed from the non-skin side in the thickness direction.
  • 3A is a cross-sectional view taken along the line IIIA-IIIA in FIG. 1
  • FIG. 3B is a cross-sectional view taken along the line IIIB-IIIB in FIG.
  • the napkin 1 is a sheet-like member having a vertically long shape in plan view, and has a longitudinal direction, a width direction, and a thickness direction.
  • longitudinal direction refers to the longitudinal direction of the product of the napkin 1
  • thickness direction refers to the direction of the thickness of the product of the napkin 1
  • width direction refers to the longitudinal direction.
  • a lateral direction orthogonal to the direction and the thickness direction is shown.
  • the longitudinal direction on the stomach side of the user when the napkin 1 is used is “front”, and the direction on the back side of the user is “back”.
  • the thickness direction has a “skin side” that is in contact with the user's skin when the napkin 1 is used, and a “non-skin side” that is the opposite side.
  • the napkin 1 includes an absorbent body 2, a top sheet 3 that covers the absorbent body 2 from the skin side that is one side in the thickness direction of the absorbent body 2, and an absorbent body in the thickness direction. 2 and the top sheet 3, and a back sheet 5 provided on the non-skin side that is the other side in the thickness direction of the absorber 2.
  • the back sheet 5 has two types of sheets, a main sheet 51 and a side sheet 52.
  • Top sheet 3 and second sheet 4, absorbent body 2 and second sheet 4, absorbent body 2 and top sheet 3, top sheet 3 and back sheet 5, and main sheet 51 and side sheet 52 in back sheet 5 are hot-melt bonded. They are joined by an adhesive such as an agent.
  • the adhesive application pattern include an ⁇ pattern, a spiral pattern, and a stripe pattern.
  • the joint between the top sheet 3 and the second sheet 4 is the first joint 11
  • the joint between the absorber 2 and the second sheet 4 is the second joint 12
  • the joint portion is the third joint portion 13
  • the joint portion between the top sheet 3 and the back sheet 5 is the fourth joint portion 14
  • the joint portion between the main sheet 51 and the side sheet 52 in the back sheet 5 is the fifth joint portion 15.
  • the outer edge of the napkin 1 is formed in a wave shape in which a plurality of arcs are connected.
  • the napkin 1 has the wing part 10 provided in order to mount and fix to underwear etc. at the time of use in the center of a longitudinal direction.
  • the wing portion 10 has a substantially triangular shape extending so as to project outward in the width direction, and is provided on both sides in the width direction.
  • a region where the wing portion 10 is provided is a central region 1a, a region in front of the central region 1a is a front region 1b, and a region behind the central region 1a is a rear region 1c.
  • a region corresponding to a region where the wing portion 10 is provided in the longitudinal direction is defined as a central region 1a.
  • a point located on the outermost side in the width direction is defined as a vertex 10a.
  • a point on the arc where the inclination of the tangent line is parallel to the longitudinal direction for the first time is defined as a point 10b on the front side.
  • a line connecting a pair of front-side points 10b arranged in the width direction is defined as a boundary line (front-side boundary line) between the central region 1a and the front region 1b, and a region ahead of the front-side boundary line is It becomes the front region 1b.
  • a point on the circular arc where the inclination of the tangent line is parallel to the longitudinal direction for the first time is defined as a rear point 10c.
  • a line connecting a pair of rear-side points 10c arranged in the width direction is defined as a boundary line (rear-side boundary line) between the central region 1a and the rear region 1c, and a region behind the rear-side boundary line is It becomes the rear region 1c.
  • the region from the front boundary line to the rear boundary line in the longitudinal direction is the central region 1a.
  • a tangent line at a pair of front points 10b and a tangent line at a pair of rear points 10c are indicated by two-dot chain lines, and a front boundary line and a rear boundary line are respectively indicated by one-dot chain lines.
  • the absorbent body 2 is a member that absorbs liquid such as menstrual blood and holds it inside, and as shown in FIGS. 3A and 3B, an absorbent core 21 formed of pulp fibers that are liquid absorbent fibers and the like.
  • a cover sheet 22 formed of a soft material such as a tissue.
  • the absorbent core 21 is harder and thicker than the top sheet 3, the second sheet 4, and the back sheet 5. As shown in FIG.1 and FIG.3A, the absorptive core 21 has the narrow part 210 narrowed inside the width direction in the center of a longitudinal direction. In the present embodiment, as shown in FIG. 1, the constricted portion 210 is provided in a range longer in the longitudinal direction than the central region 1 a, but is not limited thereto, and may be provided at least in the central region 1 a. . Moreover, the absorber 2 does not necessarily need to include the absorbent core 21 having the constricted portion 210.
  • the cover sheet 22 has both ends in the width direction overlapped on the non-skin side in the thickness direction with the absorbent core 21 wound inside.
  • the absorptive core 21 has the constricted part 210, as shown to FIG. 3A, space exists between the cover sheet
  • the top sheet 3 is a member that transmits liquid such as menstrual blood, and is formed of a liquid-permeable nonwoven fabric or the like.
  • the top sheet 3 for example, fine fibers of 1.3 dtex to 2.2 dtex (preferably about 1.7 dtex) are 20 kg / m 3 to 40 kg / m 3 (preferably 25 kg / m 3 to 35 kg / m).
  • a non-woven fabric bonded to a density of about 3 ) is used.
  • the top sheet 3 is not limited to this, and may be a member having at least liquid permeability.
  • the top sheet 3 has folded portions 32 that are folded on both sides in the width direction.
  • the folded portion 32 is formed by folding the top sheet 3 along the folded line 32b.
  • the fold line 32b is located on both sides in the width direction of the flat surface portion 31 that covers the skin side surface of the absorbent body 2 in the top sheet 3.
  • the tip 320a of the folded portion 32 is located between the absorber 2 and the back sheet 5 in the thickness direction.
  • the distal end portion 320 including the distal end 320a extends toward the inner side (center side) in the width direction between the absorber 2 and the back sheet 5 in the thickness direction.
  • the front end portion 320 is joined to the backsheet 5 by a pair of fourth joining portions 14 arranged in the width direction between the absorber 2 and the backsheet 5 in the thickness direction. Therefore, the top sheet 3 is joined to the back sheet 5 at the front end portion 320.
  • the second sheet 4 is a member that transmits liquid such as menstrual blood like the top sheet 3, and is formed of a nonwoven fabric of liquid-permeable synthetic fibers. As shown in FIG. 3A and FIG. 3B, both end portions in the width direction of the second sheet 4 include folded regions 400, and the folded regions 400 are formed between the absorber 2 and the top sheet 3 in the width direction. Located between.
  • both end portions of the second seat 4 include a region 400 that is folded over the entire center region 1a, front region 1b, and rear region 1c, and the folded region 400 has a width direction.
  • the absorber 2 is located between the top sheet 3 and the absorber 2.
  • the present invention is not limited to this, and it is only necessary that both end portions of the second sheet 4 are positioned between the absorber 2 and the top sheet 3 in the width direction at least in the central region 1a.
  • the central area 1a is an area where the frequency of contact between the user's feet when wearing the napkin 1 is high. Further, as described above, the absorbent body 2 is formed to be harder than the top sheet 3 and the second sheet 4, and the user applies a larger contact pressure to both feet than the top sheet 3 and the second sheet 4. It will be received from the absorber 2.
  • both end portions in the width direction of the second sheet 4 are located between the absorber 2 top seas and 3 in the width direction.
  • the contact pressure Before receiving the contact pressure, it is possible to receive the contact pressure from the folded portion 32 of the top sheet 3 softer than the absorbent body 2 and both ends of the second sheet 4 and to directly receive the contact pressure from the absorbent body 2. Therefore, it is possible to relieve the contact pressure from the absorbent body 2 received by both feet, and to suppress discomfort in the crotch, leading to improvement in the wearability of the napkin 1.
  • both feet can receive contact pressure from a region having a surface wider than both end surfaces of the second sheet 4. Compared with the case where the contact pressure is received from the surface (edge), the discomfort in the crotch is further suppressed.
  • the absorbent body 2 has the constricted portion 210 so that the absorbent core 21 is confined at the inner side in the width direction at least in the central region 1a. Therefore, the width direction from the folded portion 32 of the topsheet 3 to the absorbent core 21 To prevent a situation where both the legs are subjected to the contact pressure from the absorbent core 21 immediately after receiving the contact pressure from the folded portions 32 of the top sheet 3 and both ends of the second sheet 4. It is possible to relieve the contact pressure from the absorbent core 21 received by both feet.
  • a gap S is provided between the tip 400 a of the folded region 400 that is the end in the width direction of the second sheet 4 and the absorbent core 21.
  • the gap S is provided over the entire longitudinal direction of the central region 1a, the front region 1b, and the rear region 1c.
  • the present invention is not limited to this, and the gap S may be provided at least in the central region 1a. That's fine.
  • the gap S is not necessarily provided between the tip 400a of the second sheet 4 and the absorbent core 21, but it is desirable that the gap S is provided.
  • the napkin 1 having the gap S has a region in which the top sheet 3 and the second sheet 4 exist and a region in which only the top sheet 3 exists in the thickness direction.
  • the rigidity is lower than the region where the top sheet 3 and the second sheet 4 exist. Therefore, when a force in the width direction is applied from both feet in the central region 1a, only the top sheet 3 exists. Deformation occurs from the region. That is, the region where only the top sheet 3 exists is more likely to be deformed than the region where the top sheet 3 and the second sheet 4 exist.
  • the region where the top sheet 3 and the second sheet 4 existing on the skin side in the thickness direction are more likely to rise in the thickness direction than the region where only the top sheet 3 exists, and the contact pressure is increased from the entire rising surface. Therefore, the contact pressure from the top sheet 3 and the second sheet 4 received by both feet is relaxed, and the uncomfortable feeling in the crotch is further suppressed.
  • the top sheet 3 and the second sheet 4 are joined in the thickness direction by a pair of seal portions 6 extending in the longitudinal direction and arranged in the width direction.
  • Examples of the method for joining the top sheet 3 and the second sheet 4 include fusion bonding by pressure and pressure.
  • the pair of seal portions 6 are located outside the narrow portion 210 in the width direction at the position where the narrow portion 210 is provided.
  • sticker part 6 is each shown with the sand.
  • the pair of seal portions 6 is formed by a plurality of dot-shaped pressing portions, and in the present embodiment, the top sheet 3 and the second sheet 4 are fused in the pressing portions.
  • both feet contact the pair of seal portions 6 in addition to the contact pressure from the folded portion 32 of the top sheet 3 and both ends of the second sheet 4 before receiving the contact pressure from the absorbent core 21. Since the pressure can be received and the contact pressure from the absorbent core 21 does not have to be received directly, the contact pressure from the absorbent core 21 received by both feet can be further relaxed.
  • the pair of seal portions 6 is removed when both feet apply a force in the width direction to the napkin 1.
  • the folded portion 32 of the top sheet 3 and both end portions of the second sheet 4 are likely to rise or fall in the thickness direction.
  • both feet can receive contact pressure from the entire surface rising or falling in the thickness direction, so that the contact pressure from the top sheet 3 and the second seat 4 received by both feet is relieved. , The sense of discomfort in the crotch is further suppressed.
  • the pair of seal portions 6 do not necessarily have to be positioned outside the narrow portion 210 in the width direction over the entire position where the narrow portion 210 is provided, but at least at the most narrow position of the narrow portion 210. What is necessary is just to be located in the outer side of the width direction of the part 210. FIG.
  • the absorbent body 2, the top sheet 3, and the second sheet 4 are squeezed and joined in the thickness direction by the first squeezing part 71 and the second squeezing part 72.
  • a heat embossing process is mentioned, for example.
  • the 1st pressing part 71 and the 2nd pressing part 72 are formed with several recessed parts located in a line with a fixed space
  • a pair of first pressing parts 71 formed so as to extend in the longitudinal direction are provided side by side in the width direction at a position where the constricted part 210 is provided, and forward of the constricted part 210.
  • the 2nd pressing part 72 formed in the heart shape is each provided in the back position.
  • both end portions of the second sheet 4 are located on the outer side in the width direction than the first pressing portion 71 and the second pressing portion 72. Therefore, since the both ends of the second sheet 4 are not joined to the absorber 2 and the top sheet 3 by the first pressing part 71 and the second pressing part 72, the second sheet 4 has an increased degree of fiber freedom at both ends. An uncomfortable feeling between the groins is further suppressed by improving the feel received by both feet.
  • the 1st pressing part 71 and the 2nd pressing part 72 are shown with the shading.
  • the distance L1 from the outer edge in the width direction of the absorbent core 21 to the fold line 32b of the top sheet 3 is It is longer than the distance L2 from the outer edge in the width direction to the outer edge in the width direction of the first pressing portion 71.
  • the back sheet 5 is formed by joining a main sheet 51 and a pair of side sheets 52 in the thickness direction by a fifth joint portion 15.
  • the main sheet 51 is formed of a liquid-impermeable synthetic film or the like, and is provided on the most non-skin side in the thickness direction.
  • the pair of side sheets 52 is formed of a soft nonwoven fabric or the like, and is provided on the skin side in the thickness direction with respect to the main sheet 51. More specifically, the pair of side sheets 52 is disposed between the front end portion 320 of the folded portion 32 of the top sheet 3 and the main sheet 51 in the thickness direction.
  • the pair of side sheets 52 are joined to the tip part 320 of the folded part 32 of the top sheet 3 by the pair of fourth joining parts 14.
  • the pair of fourth joint portions 14 are located on the inner side in the width direction with respect to the folding line 32 b in the top sheet 3.
  • the main sheet 51 and the side sheet 52 have a portion extending outward in the width direction from the folded portion 32 of the top sheet 3 in the central region 1a, and the wing portion is formed by the extending portion. 10 is formed.
  • the pair of fourth sheets The top sheet 3 and the back sheet 5 are not joined in the thickness direction outside the joining portion 14 in the width direction. Therefore, the extended portion of the back sheet 5 that forms the wing portion 10 is not joined to the top sheet 3. Accordingly, when the wing portion 10, that is, the extended portion of the back sheet 5 is bent to the non-skin side in the thickness direction and attached to the underwear, the top sheet 3 is pulled by the back sheet 5. By avoiding this, it is possible to suppress a sense of discomfort in the crotch when the napkin 1 is worn.
  • the wing portion 10 is not necessarily formed by the main sheet 51 and the side sheet 52, and the side sheet 52 extends outward in the width direction from the folded portion 32 of the top sheet 3 at least in the central region 1a.
  • the wing part 10 should just be formed by being formed.
  • a band-shaped main body adhesive portion 16 a extending in the longitudinal direction is provided at a portion corresponding to the flat portion 31 (see FIG. 1) of the top sheet 3.
  • the wing adhesive portion 16 b is provided in a portion corresponding to the pair of wing portions 10.
  • FIG. 4 is a schematic plan view showing the positional relationship between the pair of fourth central joint portions 14a, the pair of fourth front joint portions 14b, and the pair of fourth rear joint portions 14c.
  • joints that join any two members of the absorbent body 2, the top sheet 3, the second sheet 4, and the back sheet 5, that is, first to fourth joints 11 to 14 is located on the inner side in the width direction than the folding line 32 b in the top sheet 3.
  • first to fourth joint portions 11 to 14 do not necessarily need to be located on the inner side in the width direction than the fold line 32b in the top sheet 3.
  • first joint portion 11 that joins the top sheet 3 and the second sheet 4 in the thickness direction is located on the inner side in the width direction than both end portions of the second sheet 4. Therefore, since the top sheet 3 and the second sheet 4 are not joined in the thickness direction at the folded portion 32 of the top sheet 3 and the both ends of the second sheet 4, the degree of freedom of the fibers is increased, and the napkin 1 is used. The feeling that both feet receive is improved, and the discomfort in the crotch is further suppressed.
  • the pair of fourth joints 14 that join the top sheet 3 and the back sheet 5 in the thickness direction includes a central region 1a, a front region 1b, and a rear region 1c. Are provided in each of the three regions.
  • the pair of fourth joints 14 in the center region 1a is referred to as a pair of fourth center joints 14a
  • the pair of fourth joints 14 in the front region 1b is referred to as a pair of fourth front joints 14b
  • the rear The pair of fourth joints 14 in the region 1c is referred to as a pair of fourth rear joints 14c.
  • the pair of fourth central joint portions 14a are provided to extend in the longitudinal direction in the central region 1a, and one end in the longitudinal direction extends to the front region 1b and the other end extends to the rear region 1c.
  • the pair of fourth front joint portions 14b are provided so as to extend in the longitudinal direction from the front end toward the central region 1a side in the front region 1b.
  • the pair of fourth rear joining portions 14c are provided in the rear region 1c so as to extend in the longitudinal direction from the rear end toward the central region 1a.
  • At least a part of the position of the pair of fourth front joint portions 14b and the position of the pair of fourth rear joint portions 14c and the position of the pair of fourth center joint portions 14a is longitudinal. It overlaps with.
  • the positions of the pair of fourth front joint portions 14b and the pair of fourth rear joint portions 14c and the positions of the pair of fourth center joint portions 14a are in the longitudinal direction.
  • the pair of fourth central joint portions 14a are provided over the entire longitudinal direction of the napkin 1, and the positions of the pair of fourth front joint portions 14b and the pair of fourth rear joint portions 14c. May overlap the position of the pair of fourth central joint portions 14a.
  • the pair of fourth front joint portions 14 b has an end 140 b on the central region 1 a side, which is an inner end in the longitudinal direction, at the front in the constricted portion 210 of the absorbent core 21 in the longitudinal direction. It is arranged at the side constriction start position 210b.
  • the end 140c on the central region 1a side which is the inner end in the longitudinal direction, is arranged at the rearward side constriction start position 210c in the constricted portion 210 in the longitudinal direction. Yes.
  • the ends 140b of the pair of fourth front joint portions 14b are disposed at the front side constriction start position 210b, and the ends 140c of the pair of fourth rear joint portions 14c are disposed at the rear side constriction start position 210c.
  • the present invention is not limited to this, and the ends 140b of the pair of fourth front joint portions 14b are located on the inner side (center side) of the front side constriction start position 210b, and the ends 140c of the pair of fourth rear joint portions 14c are rearward. It may be arranged on the inner side (center side) than the side constriction start position 210c.
  • the ends 140b and 140c of at least one joint portion of the pair are constricted start positions 210b and 210c, or constricted start positions 210b. , 210c may be disposed inside.
  • the pair of fourth front joints 14b and the pair of fourth rear joints 14c are located on the outer side in the width direction than the pair of fourth center joints 14a. ing.
  • the pair of fourth center joint portions 14a is located on the inner side in the width direction than the pair of fourth front joint portions 14b and the pair of fourth rear joint portions 14c.
  • the pair of fourth central joint portions 14a is located on the inner side in the width direction than the pair of fourth front joint portions 14b and the fourth rear joint portion 14c.
  • a portion corresponding to the folded portion 32 in the top sheet 3 can be secured in a wide area. Therefore, both feet receive contact pressure from a wider surface of the top sheet 3 that is softer than the absorber 2 before receiving contact pressure from the absorber 2, and contact from the absorber 2 that both feet receive. The pressure is relieved, leading to a sense of discomfort in the crotch.
  • the pair of fourth front joint portions 14b and the pair of fourth rear joint portions 14c are positioned on the outer side in the width direction than the pair of fourth central joint portions 14a. Securing the planar shape of the planar portion 31 (see FIGS. 1, 3A, and 3B) of the top sheet 3 that is the skin-side surface that absorbs liquid such as menstrual blood to further secure the liquid absorption area This leads to suppression of liquid leakage.

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)
PCT/JP2015/073220 2015-06-03 2015-08-19 吸収性物品 WO2016194245A1 (ja)

Priority Applications (2)

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CN201580034668.0A CN106456395B (zh) 2015-06-03 2015-08-19 吸收性物品

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JP2015113019A JP5978349B1 (ja) 2015-06-03 2015-06-03 吸収性物品
JP2015-113019 2015-06-03

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JP6145241B1 (ja) * 2017-02-28 2017-06-07 ユニ・チャーム株式会社 吸収性物品の製造方法
JP6161858B1 (ja) * 2017-02-28 2017-07-12 ユニ・チャーム株式会社 吸収性物品の製造方法
JP7170489B2 (ja) * 2018-10-11 2022-11-14 ユニ・チャーム株式会社 吸収性物品
CN111821104A (zh) * 2020-07-22 2020-10-27 武汉国灸科技开发有限公司 一种石墨烯棉布护垫

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004298454A (ja) * 2003-03-31 2004-10-28 Daio Paper Corp 吸収性物品及び吸収性物品におけるエンボス形成方法
JP2006081653A (ja) * 2004-09-15 2006-03-30 Kao Corp 使い捨ておむつ
JP2006218055A (ja) * 2005-02-10 2006-08-24 Livedo Corporation 吸収性物品
WO2009022530A1 (ja) * 2007-08-10 2009-02-19 Uni-Charm Corporation 着用物品の製造装置

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Publication number Priority date Publication date Assignee Title
JP2008081653A (ja) * 2006-09-28 2008-04-10 Fujifilm Corp セルロースアシレートの回収方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004298454A (ja) * 2003-03-31 2004-10-28 Daio Paper Corp 吸収性物品及び吸収性物品におけるエンボス形成方法
JP2006081653A (ja) * 2004-09-15 2006-03-30 Kao Corp 使い捨ておむつ
JP2006218055A (ja) * 2005-02-10 2006-08-24 Livedo Corporation 吸収性物品
WO2009022530A1 (ja) * 2007-08-10 2009-02-19 Uni-Charm Corporation 着用物品の製造装置

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JP2016221135A (ja) 2016-12-28
CN106456395B (zh) 2017-11-10
KR101831753B1 (ko) 2018-02-23
CN106456395A (zh) 2017-02-22
MY179264A (en) 2020-11-03
JP5978349B1 (ja) 2016-08-24

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