WO2018123237A1 - Article absorbant sous forme de sous-vêtement - Google Patents

Article absorbant sous forme de sous-vêtement Download PDF

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Publication number
WO2018123237A1
WO2018123237A1 PCT/JP2017/038301 JP2017038301W WO2018123237A1 WO 2018123237 A1 WO2018123237 A1 WO 2018123237A1 JP 2017038301 W JP2017038301 W JP 2017038301W WO 2018123237 A1 WO2018123237 A1 WO 2018123237A1
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WO
WIPO (PCT)
Prior art keywords
region
absorbent article
skin
main body
type absorbent
Prior art date
Application number
PCT/JP2017/038301
Other languages
English (en)
Japanese (ja)
Inventor
訓功 川端
市川　誠
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 CN201780080621.7A priority Critical patent/CN110114045B/zh
Publication of WO2018123237A1 publication Critical patent/WO2018123237A1/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
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • 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

Definitions

  • the present invention relates to a pants-type absorbent article.
  • Patent Document 1 includes an exterior body and an absorbent main body fixed to the inner surface side of the exterior body, and both sides of the ventral side and the back side of the exterior body.
  • An underpants type diaper in which a pair of side seal portions is formed by joining together.
  • MFR fluidity of the resin in a molten state
  • Gain flexibility by increasing the MFR (fluidity of the resin in a molten state) of the outermost layer sheet constituting the exterior body, the MFR of the innermost layer sheet is increased, while increasing the bonding strength of the side seal portion, Gain flexibility.
  • the outermost layer sheet (non-skin side sheet) and the innermost layer sheet (skin side sheet) so that the abdomen side portion and the back side portion (belt portion) of the outer body fit around the waist of the wearer.
  • the elastic member is fixed in an extended state in the lateral direction.
  • the absorptive main body is being fixed to the innermost layer sheet. Therefore, as in Patent Document 1, when the basis weight of the innermost layer sheet is small, the contraction force of the elastic member is not easily buffered by the innermost layer sheet and is easily transmitted to the absorbent main body. When the absorbent main body contracts due to the shrinkage of the elastic member, wrinkles are generated in the absorbent main body, and excrement is liable to leak or wearing comfort is reduced.
  • the present invention has been made in view of the conventional problems as described above, and an object thereof is to provide a pant-type absorbent article in which the absorbent main body is not easily affected by the contraction of the belt portion.
  • a main invention for achieving the above object has a longitudinal direction, a lateral direction, and a thickness direction, is folded in half in the longitudinal direction, and the longitudinal direction extends along the longitudinal direction, and the transverse direction
  • a pant-type absorbent article having a pair of belt portions, the belt portion being a skin-side sheet, a non-skin-side sheet, and an adhesive between the skin-side sheet and the non-skin-side sheet.
  • a pair of elastic members that can be expanded and contracted in the lateral direction, and a non-skin side surface of the longitudinal end of the absorbent main body and a skin side surface of the skin side sheet are bonded together
  • the basis weight of the fibers of the skin-side sheet is greater than the basis weight of the fibers of the non-skin-side sheet, and the elastic member per unit length and the skin-side sheet are joined.
  • the amount of adhesive includes the elastic member and the non-skin side sheet per unit length. Less than the amount of the adhesives combined and it is a pant-type absorbent article characterized by.
  • the present invention it is possible to provide a pant-type absorbent article in which the absorbent main body is hardly affected by the contraction of the belt portion.
  • FIG. 5 is an explanatory diagram of a bonding region 60.
  • FIG. 7A is an explanatory diagram of the first application region 64, and FIG. 7B is an explanatory diagram of the second application region 65. It is explanatory drawing of the joining area
  • a pants type having a longitudinal direction, a lateral direction, and a thickness direction, folded in half in the longitudinal direction, the longitudinal direction being along the longitudinal direction, and a pair of belt portions along the lateral direction It is an absorbent article, and the belt portion is stretchable in the lateral direction, which is joined with an adhesive between a skin side sheet, a non-skin side sheet, and the skin side sheet and the non-skin side sheet.
  • An elastic member and has a pair of joining regions in which a non-skin side surface of the longitudinal end portion of the absorbent main body and a skin side surface of the skin side sheet are joined, and the skin side sheet
  • the basis weight of the fibers is larger than the basis weight of the fibers of the non-skin side sheet, and the amount of the adhesive bonding the elastic member and the skin side sheet per unit length is per unit length. Less than the amount of the adhesive bonding the elastic member and the non-skin side sheet When a pant-type absorbent article characterized by.
  • the cushioning property of the skin-side sheet is high, and the cushioning property is not easily inhibited by the adhesive, so that the contraction force of the elastic member is easily buffered by the skin-side sheet. Therefore, the absorbent main body is hardly affected by the contraction of the belt portion, and wrinkles are hardly generated in the absorbent main body.
  • At least one of the pair of joining regions connects a pair of first regions having a length in the lateral direction and the lateral ends of the pair of first regions.
  • a pair of second regions having a length in the longitudinal direction, and the absorbent main body and the skin sheet are joined between the pair of first regions and between the pair of second regions.
  • the non-joining area reduces the joining area between the absorbent main body and the belt part, and the absorbent main body is less susceptible to the contraction of the belt part.
  • the pair of first regions can prevent the lower end portion of the belt portion and the upper end portion of the absorbent main body from being turned up. Further, when the absorbent article is pulled up, the pair of second regions makes it easy for the lifting force to be transmitted from the belt portion to the absorbent main body, and the absorbent main body is easily pulled up.
  • pant-type absorbent article wherein the length in the longitudinal direction is longer in the non-joining region than in the first region below the pair of first regions. This is a mold absorbent article.
  • the joining area between the absorbent main body and the belt portion becomes smaller, and the absorbent main body becomes less susceptible to the contraction of the belt portion.
  • Such a pant-type absorbent article characterized in that, in the pair of first regions, the upper first region is longer in the longitudinal direction than the lower first region. It is a pants-type absorbent article.
  • the joining area between the absorbent main body and the belt portion becomes smaller, and the absorbent main body becomes less susceptible to the contraction of the belt portion.
  • the upper end of the absorbent main body is firmly joined to the belt portion, it is possible to prevent a decrease in wearing comfort due to turning of the absorbent main body.
  • Such a pant-type absorbent article wherein the joint region located on the wearer's belly side of the pair of joint regions has the non-joint region, and the joint region located on the back side of the wearer is the A pants-type absorbent article characterized by having no non-bonded region.
  • the back belt portion is easier to separate from the absorbent main body than the abdominal belt portion due to rubbing during sleeping, etc., but the back belt portion is the absorbent main body. Firmly joined. And an absorptive main body becomes difficult to receive to the influence of contraction of the belt part of a ventral side.
  • pant-type absorbent article in the belt portion, a plurality of the elastic members are arranged in the longitudinal direction, and all the elastic members overlapping the absorbent main body in the thickness direction are
  • the pants-type absorbent article is characterized by overlapping with the joining region in the thickness direction.
  • a plurality of the elastic members are arranged in the longitudinal direction, and the belt portion located on the back side of the wearer is A portion of the joining region that overlaps with the elastic member disposed in the protruding region and in the thickness direction, and the other elastic member
  • the pants-type absorbent article is characterized in that a length in the lateral direction is shorter than a portion of the joint region overlapping in a thickness direction.
  • the joining area on the back side becomes small, and the absorbent main body is hardly affected by the contraction of the belt part on the back side.
  • a portion of the joining region overlapping with the lower elastic member in the thickness direction is the upper elastic member
  • the pants-type absorbent article is characterized in that the length in the lateral direction is shorter than the portion of the joining region overlapping in the thickness direction.
  • the back-side joining area becomes smaller, and the absorbent main body becomes less susceptible to the contraction of the back-side belt portion.
  • Such a pant-type absorbent article wherein the absorbent main body has an absorbent body, and a part of the absorbent body located on the abdomen side of the wearer and a part of the absorbent body located on the back side of the wearer
  • the pants-type absorbent article is characterized in that at least one of them is thicker than a portion of the absorbent body located in the crotch portion of the wearer.
  • the absorbent body that is overlapped with the belt portion is thick and has high rigidity, so that the absorbent main body is less susceptible to the contraction of the belt portion.
  • the pants-type absorbent article according to the present invention is not limited to diapers for adults, and can be used as, for example, diapers for infants, shorts-type sanitary napkins, and the like.
  • FIG. 1 is a schematic front view of a pants-type disposable diaper 1 (hereinafter referred to as “diaper”) of the first embodiment.
  • FIG. 2 is a schematic plan view of the developed and extended diaper 1 as seen from the skin side.
  • FIG. 3 is a schematic sectional view taken along line AA in FIG.
  • FIG. 4 is a schematic sectional view taken along line BB in FIG.
  • the extended state of the diaper 1 is a state in which the diaper 1 is extended to such an extent that the wrinkles generated in the diaper 1 are substantially not visually recognized. Specifically, it is a state in which each member constituting the diaper 1 (for example, skin-side sheets 21 and 31 to be described later) is extended until the dimensions thereof are equal to or close to the dimensions of the member itself.
  • the diaper 1 has a longitudinal direction, a lateral direction, and a thickness direction in a pants-type state, and is formed with a waistline opening BH and a pair of leghole openings LH.
  • the torso side of the wearer is the upper side
  • the inseam side of the wearer is the lower side.
  • the thickness direction is a direction in which the members constituting the diaper 1 are laminated as shown in FIGS. 3 and 4.
  • the side in contact with the wearer is defined as “skin side”, and the opposite side is defined as “non-skin side”.
  • the diaper 1 is a three-piece type diaper having an absorbent main body 10 and a pair of belt members 20 and 30 (a pair of belt portions of the present invention) which are three rectangular members.
  • the pair of belt members 20, 30 the one located on the wearer's stomach side is referred to as the abdomen side belt member 20, and the one located on the wearer's back side is referred to as the back side belt member 30.
  • the abdomen belt member 20 and the back belt member 30 are arranged such that their longitudinal directions are along the lateral direction of the diaper 1.
  • the center part of the horizontal direction of the abdominal side belt member 20 is distribute
  • a central portion in the lateral direction of the member 30 is disposed.
  • the absorbent main body 10 is folded in half at the approximate center of the longitudinal direction so that the longitudinal direction of the absorbent main body 10 is along the longitudinal direction of the diaper 1.
  • the pants-type diaper 1 shown in FIG. 1 is obtained by joining both sides in the horizontal direction and both sides in the horizontal direction of the back belt member 30 by welding or the like.
  • the absorbent main body 10 includes an absorbent body 40, a top sheet 11 disposed on the skin side in the thickness direction from the absorbent body 40, and a back sheet 12 disposed on the non-skin side in the thickness direction from the absorbent body 40.
  • the exterior sheet 13 is a liquid-permeable sheet, and examples thereof include a hydrophilic spunbond nonwoven fabric and a hydrophilic air-through nonwoven fabric.
  • the back sheet 12 is a liquid-impermeable sheet, and examples thereof include a polyethylene film. Examples of the exterior sheet 13 include a hydrophobic SMS nonwoven fabric.
  • the top sheet 11 and the back sheet 12 viewed in the thickness direction have the same planar shape and size as the absorbent main body 10 and cover both surfaces of the absorber 40. Moreover, as shown in FIG. 4, the both sides of the lateral direction of the exterior sheet 13 are folded twice toward the skin side.
  • An elastic member 14 for a three-dimensional gathered portion such as rubber thread is fixed in a state of being stretched in the longitudinal direction between the exterior sheets 13 that are turned into two layers by the first folding. Part of the exterior sheet 13 is folded back to the skin side with respect to the top sheet 11 by the second folding, and a three-dimensional gather portion 15 that can stand on the skin side is formed.
  • the absorber 40 has an absorbent core 41 that absorbs and holds excrement such as urine, and a core wrap sheet 42 that covers the absorbent core 41.
  • the absorbent core 41 include those in which liquid absorbent fibers such as pulp containing a super absorbent polymer (SAP) are formed into a predetermined shape (here, an hourglass shape).
  • the core wrap sheet 42 include liquid permeable sheets such as tissue paper and nonwoven fabric.
  • the abdominal side belt member 20 and the back side belt member 30 are each a skin side sheet 21, 31, a non-skin side sheet 22, 32, and a plurality of waistline elastic members 23, 33, Cover sheets 24 and 34.
  • seat which comprises the stomach side belt member 20 and the back side belt member 30, flexible sheets, such as a SMS nonwoven fabric, can be illustrated.
  • the waistline elastic members 23 and 33 include thread-like elastic members such as rubber and spandex, but may be sheet-like elastic members such as a stretchable nonwoven fabric and a stretchable film.
  • the skin side sheets 21 and 31 and the non-skin side sheets 22 and 32 are arranged on the non-skin side in the thickness direction with respect to the absorbent main body 10.
  • the plurality of waistline elastic members 23, 33 are arranged side by side in the vertical direction between the skin side sheets 21, 31 and the non-skin side sheets 22, 32.
  • the plurality of waistline elastic members 23 and 33 are adhesive (for example, hot) between the skin-side sheets 21 and 31 and the non-skin-side sheets 22 and 32 in a state of being stretched in the lateral direction so as to be stretchable in the lateral direction. Melted adhesive etc.).
  • the cover sheets 24 and 34 are shorter in the longitudinal direction than the skin-side sheets 21 and 31 and the non-skin-side sheets 22 and 32, and are arranged on the skin side in the thickness direction of the absorbent main body 10. 10 end portions in the longitudinal direction are covered.
  • the 3 piece type diaper was illustrated here, even if it is a diaper provided with the site
  • FIG. 5 is an explanatory diagram of the amounts of the adhesives 50 and 51 that join the elastic members 23 and 33 to the skin-side sheets 21 and 31 and the non-skin-side sheets 22 and 32.
  • FIG. 6 is an explanatory diagram of a joining region 60 where the belt members 20 and 30 and the absorbent main body 10 are joined.
  • the diaper 1 has a non-skin side surface at the end in the longitudinal direction of the absorbent main body 10 and the skin side surfaces of the skin side sheets 21, 31 included in the belt members 20, 30. It has a pair of joining area
  • the lateral contraction force of the belt members 20, 30, that is, the lateral contraction force of the waistline elastic members 23, 33 is transmitted to the absorbent main body 10.
  • the contraction force of the elastic members 23 and 33 is largely transmitted to the absorbent main body 10
  • vertical fistulas are formed on the portion of the absorbent main body 10 that overlaps with the belt members 20 and 30, and excrement is generated from the gap generated by the wrinkles. Almost leaks or the comfort of wearing decreases.
  • the basis weight of the fibers of the skin-side sheets 21 and 31 to which the absorbent main body 10 is joined is made larger than the basis weight of the fibers of the non-skin-side sheets 22 and 32.
  • the basis weight of the skin-side sheets 21 and 31 may be 15 g / m 2
  • the basis weight of the non-skin-side sheets 22 and 32 may be 13 g / m 2 .
  • the amount (for example, g / m) of the adhesive 50 that joins the waistline elastic members 23 and 33 and the skin side sheets 21 and 31 per unit length is the unit length.
  • the amount is smaller than the amount of the adhesive 51 (for example, g / m) that joins the corresponding waistline elastic members 23 and 33 and the non-skin side sheets 22 and 32. Therefore, the cushioning properties of the skin side sheets 21 and 31 can be further suppressed from being hindered by the rigidity of the adhesive 50.
  • the waistline elastic members 23 and 33 and the skin side sheets 21 and 31 since the amount of the adhesive 50 that joins the waistline elastic members 23 and 33 and the skin side sheets 21 and 31 is small, the skin side sheets 21 and 31 and the waistline elastic member 23, The bonding strength of 33 is weaker than the bonding strength of the non-skin side sheets 22 and 32 and the waistline elastic members 23 and 33.
  • the absorbent main body 10 is not easily affected by the contraction of the belt members 20 and 30, and the absorbent main body 10 is less likely to wrinkle. As a result, the adherence between the absorbent main body 10 and the wearer is enhanced, the excrement leakage is suppressed, and the wearing comfort is also improved.
  • the skin side sheets 21 and 31 are in direct contact with the wearer. Therefore, by reducing the amount of the adhesive 50 on the skin side sheets 21 and 31 side, the rigidity of the skin side sheets 21 and 31 is suppressed, and the feel of the belt members 20 and 30 is also improved.
  • the basis weight of the non-skin side layer may be larger than the basis weight of the skin side layer.
  • the basis weight of the skin S layer is 4.5 g / m 2 and the basis weight of the M layer is 1.5 g. / m with respect to a 2, a basis weight of S layer of the non-skin side better to 9 g / m 2.
  • the absorbent main body 10 is the belt members 20 and 30. It is less susceptible to shrinkage.
  • the adhesive is not applied to the skin-side sheets 21 and 31 and the non-skin-side sheets 22 and 32, but the adhesive 50 is applied to the waistline elastic members 23 and 33 by, for example, the V slot method. , 51 shall be applied directly. Further, by adjusting the positions of the adhesives 50 and 51 and the positions of the waistline elastic members 23 and 33 in the V slot, the number of the waistline elastic members 23 and 33 on the side joined to the non-skin side sheets 22 and 32 is increased. The amount of the adhesive 51 is applied. By doing so, the amount of the adhesive 50 that joins the waistline elastic members 23 and 33 and the skin side sheets 21 and 31 per unit length is set to the waistline elastic members 23 and 33 per unit length and the non-skin side. The amount can be smaller than the amount of the adhesive 51 that joins the sheets 22 and 32.
  • the comparison of the basis weight (mass per unit area) of the fibers of the skin side sheets 21 and 31 and the non-skin side sheets 22 and 32 may be performed by a known method.
  • the skin-side sheets 21 and 31 and the non-skin-side sheets 22 and 32 are separated from the belt members 20 and 30 of the target diaper 1 and cut into an appropriate size, and the samples of the skin-side sheets 21 and 31 and the non-skin Samples of the side sheets 22 and 32 are obtained. And it is good to measure the mass and area of each sample, and to calculate and compare the mass per unit area.
  • the comparison with the amount of the adhesive 51 that joins 32 may be performed by a known method. For example, a sample obtained by cutting the belt members 20 and 30 of the target diaper 1 to an appropriate size is obtained, and a liquid such as ink that allows the adhesives 50 and 51 to be visually recognized on the skin side surface and the non-skin side surface of the sample. Apply. Then, the longitudinal section of the waistline elastic members 23 and 33 and a cross section cut in the orthogonal direction are enlarged and photographed with an electron microscope. Based on the photographed image, the amount of the adhesive 50 on the skin side sheets 21 and 31 side and the amount of the adhesive 51 on the non-skin side sheets 22 and 32 side are visually compared or the areas are calculated and compared. Or better.
  • the bonding strength between the skin-side sheets 21 and 31 and the waistline elastic members 23 and 33 is weaker than the bonding strength between the non-skin-side sheets 22 and 32 and the waistline elastic members 23 and 33.
  • a tensile tester that the bonding strength between the skin-side sheets 21 and 31 and the waistline elastic members 23 and 33 is weaker than the bonding strength between the non-skin-side sheets 22 and 32 and the waistline elastic members 23 and 33. May be.
  • two samples that are long in the longitudinal direction of the waistline elastic members 23 and 33 and that include the one waistline elastic members 23 and 33 are obtained. To do. And while separating the non-skin side sheet
  • FIG. 7A is an explanatory diagram of the first application region 64 where the adhesive is applied to the belt members 20 and 30, and FIG. 7B is an explanatory diagram of the second application region 65 where the adhesive is applied to the absorbent main body 10. It is.
  • a first application region 64 (FIG. 7A) in which an adhesive is applied to the belt members 20 and 30 and a second application region 65 (FIG. 7B) in which an adhesive is applied to the absorbent main body 10. )
  • a joining region 60 (FIG. 6).
  • the joint region 60 located on the wearer's ventral side is also referred to as the ventral side joint region 61
  • the joint region 60 located on the wearer's back side is also referred to as the back side joint region 62.
  • region 64 is an area
  • a plurality (six in this case) of first application regions 64 are arranged at a minute interval in the longitudinal direction of the diaper 1.
  • three first application regions 64 are arranged in the vertical direction.
  • interval is a space
  • region 65 is an area
  • a plurality (seven in this case) of second application regions 65 are arranged in the lateral direction of the diaper 1 without being spaced apart or with a minute spacing.
  • a plurality (seven in this case) of second application regions 65 are also arranged in the lateral direction at a minute interval without being spaced apart at the end on the ventral side of the absorbent main body 10.
  • the length in the vertical direction of the second application region 651 at both ends in the horizontal direction is equal to that of the second application region 65 on the back side, whereas the vertical direction of the intermediate second application region 652 Is shorter than the second application area 65 on the back side, and is arranged close to the end of the absorbent main body 10.
  • the back-side joining region 62 has a substantially rectangular shape by overlapping the first coating region 64 and the second coating region 65, and almost the entire inner region absorbs the back side joining region 62. This is a joining region between the main body 10 and the belt members 20 and 30.
  • the ventral joint region 61 is formed by overlapping the first application region 64 and the second application region 65, so that the outer shape becomes a substantially rectangular shape, and the adhesive is not applied to the inside thereof.
  • the ventral junction region 61 connects a pair of first regions 61A having a length in the horizontal direction and a pair of first regions 61A in the horizontal direction, and a pair of first regions 61A having a length in the vertical direction. 2 region 61B, and a region between the pair of first regions 61A and no adhesive applied between the pair of second regions 61B, that is, the absorbent main body 10 and the skin side sheet 21. , 31 have non-bonded regions 63 that are not bonded.
  • the joining region 60 between the absorbent main body 10 and the belt members 20 and 30 becomes small, and the absorbent main body 10 becomes less susceptible to the contraction of the belt members 20 and 30.
  • the upper end portion of the absorbent main body 10 is joined to the belt members 20 and 30 by the upper first region 61A1, and the lower end portions of the belt members 20 and 30 are joined to the absorbent main body 10 by the lower first region 61A2.
  • the upper end part of the absorptive main body 10 and the lower end part of the belt members 20 and 30 are prevented from being turned over, and the occurrence of wrinkles in the absorptive main body 10 is achieved by forming a non-joining region 63 therebetween. Is suppressed.
  • the absorbent main body 10 bends and absorbs in the non-bonding region 63 when the wearer holds the belt members 20 and 30 and pulls up the diaper 1. It becomes difficult to pull up the main body 10.
  • the diaper 1 of this embodiment is provided with a pair of second regions 61B that connect the pair of first regions 61A. Therefore, the lifting force is easily transmitted from the belt members 20 and 30 to the absorbent main body 10 by the second region 61B continuous in the vertical direction of the diaper 1, and the absorbent main body 10 can be firmly pulled up.
  • the second region 61B at the lateral end of the first region 61A, the absorbent main body 10 is difficult to sway and is pulled up in a wide state. In close contact.
  • the lateral ends of the abdominal and dorsal joining regions 60 (61, 62) (the second region 61 ⁇ / b> B in the abdominal joining region 61) and the elasticity for the three-dimensional gather portion.
  • the end of the member 14 in the longitudinal direction overlaps. Therefore, the lifting force is easily transmitted from the belt members 20, 30 to the elastic member 14, and the entire absorbent main body 10 is easily lifted in conjunction with the rising of the elastic member 14.
  • the effective length portion that exhibits stretchability in the elastic member 14 is shown in the drawing, and the effective length portion of the joining region 60 and the elastic member 14 may overlap as shown in the drawing.
  • the lower end 61Bb of the second region 61B is positioned below the lower end 61Ab of the first region 61A excluding the second region 61B. Therefore, the length in the vertical direction is shortened in the central portion in the lateral direction in the ventral side joining region 61 and is not easily affected by the contraction of the belt portion 20, and the length overlapping the elastic member 14 at the lateral end portion. Thus, the absorbent main body 10 is easily lifted.
  • an adhesive may be applied to the entire area of the first application region 64 and the second application region 65, or an adhesive may be applied partially.
  • the partial application pattern of the adhesive include a linear application pattern such as a spiral shape, and a pattern in which dots or the like are arranged.
  • the pattern is continuous in the lateral direction of the diaper 1 or minute. It is assumed that the adhesive is applied at regular intervals, and in the second application region 65, the adhesive is applied in the longitudinal direction of the diaper 1 or at minute intervals.
  • the length L2 of the non-joining region 63 can be made longer than the length L1 of the first region 61A2 below the pair of first regions 61A. Preferred (L1 ⁇ L2).
  • the non-joining area 63 becomes large and the joining area 60 between the absorbent main body 10 and the belt members 20 and 30 becomes small, so that the absorbent main body 10 is less susceptible to the contraction of the belt members 20 and 30.
  • the lower end portions of the belt members 20 and 30 are turned over, the influence on the wearing comfort is small. Therefore, even if the longitudinal length L1 of the lower first region 61A2 is shortened, a problem hardly occurs.
  • the length L5 of the non-joining region 63 is longer than the length L4 of the second region 61B (L4 ⁇ L5).
  • the length L5 of the non-bonding region 63 is about five times the length L4 of the second region 61B.
  • the length L3 of the upper first region 61A1 is longer than the length L1 of the lower first region 61A2 (L1 ⁇ L3). If the upper end portion of the absorbent main body 10 is turned over, a step is generated in the diaper 1 and the influence on wearing comfort is great. Therefore, the longitudinal length L3 of the upper first region 61A1 is increased and the upper end portion of the absorbent main body 10 is firmly joined to the belt members 20 and 30 to prevent a decrease in wearing comfort.
  • the length L1 of the lower first region 61A2 in the vertical direction is not made as long as the upper first region 61A1, so that the non-joining region 63 can be enlarged, and the absorbent main body 10 is formed of the belt member 20. , 30 is less susceptible to shrinkage.
  • region 63 is provided only in the ventral
  • the back belt member 30 is easily rubbed between the floor, a chair, etc. and the wearer when the wearer is sleeping or seated, and is easily separated from the absorbent main body 10. . Therefore, as in the diaper 1 of the present embodiment, it is preferable that the non-joining region 63 is provided in the ventral joining region 61 and the non-joining region is not provided in the dorsal joining region 62 (this non-joining region). Is a relatively large region, for example, a region in which the length in the horizontal direction and the vertical direction is larger than the interval between the waistline elastic members 33). By doing so, the absorptive main body 10 becomes less susceptible to the contraction of the abdominal belt member 20 while preventing the back side belt member 30 and the absorptive main body 10 from being separated.
  • ventral joint region 61 is located at the center of the wearer's abdomen, but the abdomen dents and swells due to breathing. Therefore, by providing the non-joining area
  • the absorbent main body 10 has a non-application area 66 where no adhesive is applied between the second application area 651 at both ends in the lateral direction and the second application area 652 therebetween. , Present on the ventral side and dorsal side, respectively. Therefore, as shown in FIG. 6, the adhesive is not applied at the lateral position P corresponding to the non-application area 66 in the abdominal and dorsal bonding areas 60 (61, 62), or the belt member. The adhesive is applied only on the 20th and 30th side. Therefore, at the position P of the joining region 60, the amount of adhesive applied is small and the rigidity is low compared to the region adjacent in the lateral direction, so that the belt members 20 and 30 are likely to be bent.
  • the belt members 20 and 30 are easily rounded along the wearer's waist, and the wearing comfort is improved.
  • the abdomen side belt member 20 can be easily bent, so that the uncomfortable feeling during breathing can be further reduced.
  • the waistline elastic members 23 and 33 that do not overlap the joining region 60 when viewed in the thickness direction of the diaper 1 are more easily contracted in the lateral direction than the waistline elastic members 23 and 33 that overlap the joining region 60. Therefore, part of the waistline elastic member that overlaps with the absorbent main body 10 (23a to 23i and 33a to 33i in FIG. 6) overlaps with the joining region 60, but part of it does not overlap with the joining region 60. Then, a part of the belt members 20 and 30 are locally contracted, and the belt members 20 and 30 are likely to be twisted.
  • all the waistline elastic members (23a to 23i, 33a to 33i) overlapping with the absorbent main body 10 in the thickness direction overlap with the joining region 60 in the thickness direction.
  • the upper end 60 a of the joining region 60 is located at a position corresponding to or above the uppermost waistline elastic members 23 a and 33 a overlapping with the absorbent main body 10
  • the lower end 60b of the region 60 is located at a position corresponding to or below the lowermost waistline elastic members 23i and 33i overlapping the absorbent main body 10.
  • the thickness of the absorber 40 may be varied depending on the longitudinal portions 40A to 40C of the absorber 40.
  • the thickness T1 of the abdominal side 40A of the absorbent body 40 located on the abdomen side of the wearer than the thickness T2 of the crotch part 40B of the absorbent body 40 located on the crotch part of the wearer, or the back of the wearer The thickness T3 of the back side portion 40C of the absorber 40 located on the side may be increased (T2 ⁇ T1, T3).
  • the back-side joining region 62 does not have a non-joining region, so that the back side portion 40B of the absorbent body 40 has a thickness T1 that is larger than the thickness T1 of the abdominal side portion 40A of the absorbent body 40.
  • the thickness T3 may be thicker (T2 ⁇ T1 ⁇ T3).
  • the absorber 40 is separated from the target diaper 1 and a dial thickness gauge (ID-C1012C) manufactured by Mitutoyo Corporation or its equivalent is used at an appropriate contact pressure (for example, 3 gf / cm 2 ). It is recommended that the target portions 40A to 40C of the absorbent body 40 be measured under pressure and compared. In addition, you may compare visually or may compare using the image which image
  • FIG. 8 is an explanatory diagram of the bonding region 60 of the diaper 1 of the second embodiment.
  • the back belt member 30 has a protruding region 70 that protrudes downward from the abdominal belt member 20.
  • the lateral end 70a of the protruding region 70 is inclined inward in the lateral direction toward the lower side in the longitudinal direction.
  • the protruding region 70 covers the wearer's buttocks.
  • the shape of the abdominal side belt member 20 and the back side belt member 30 differs, it can prevent that the diaper 1 will be mounted
  • a plurality of elastic members 71 are arranged along the lower end portion of the protruding region 70. Book) are arranged side by side.
  • the elastic member 71 of the protruding region 70 (hereinafter referred to as the protruding region elastic member 71) is bonded between the skin-side sheet 31 and the non-skin-side sheet 32 so that it can expand and contract in the lateral direction. It is joined with the agent.
  • all the waistline elastic members 33 a to 33 i and the protruding region elastic members 71 a to 71 c overlapping with the absorbent main body 10 in the thickness direction It is preferable to overlap with 62 in the thickness direction. By doing so, it is possible to prevent kinking due to local contraction of the back belt member 30 and to firmly cover the wearer's waist and buttocks.
  • the lateral lengths L6 and L7 of the lower portion 62A of the back side joining region 62 that overlaps the protruding region elastic members 71a to 71c in the thickness direction overlap with the waistline elastic members 33a to 33i in the thickness direction. It is preferably shorter than the lateral length L8 of the upper portion 62B of the side joining region 62 (L6, L7 ⁇ L8).
  • the lateral length L6 of the portion of the dorsal joint region 62 that overlaps with the lower elastic members 71b and 71c in the thickness direction is equal to the upper protruding region elastic member 71a. It is preferably shorter than the length L7 in the lateral direction of the portion of the dorsal junction region 62 overlapping in the thickness direction (L6 ⁇ L7). Moreover, it is preferable that the lower part 62 ⁇ / b> A of the back-side joining region 62 does not intersect with the outline of the absorbent core 41, that is, it does not protrude outward in the lateral direction from the absorbent core 41.
  • the back side belt member 30 is large, the back side joining area
  • the absorptive core 41 shown in FIG. 8 has an hourglass shape, and a central portion in the longitudinal direction is bounded inward in the width direction.
  • both sides in the lateral direction of the absorbent main body 10 are likely to stand on the skin side along the side of the absorbent core 41 due to the sandwiching of the legs of the wearer. Therefore, as described above, it is preferable that the back-side joining region 62 is gradually shortened in the lateral direction toward the center in the longitudinal direction as the absorbent core 41 is constricted.

Abstract

La présente invention concerne un article absorbant sous forme de sous-vêtement (1) ayant un corps absorbant (10) et une paire de parties de ceinture (20, 30). Les parties de ceinture (20, 30) ont des éléments élastiques (23, 33) qui sont reliés à l'aide d'un adhésif entre des feuillets côté peau (21, 31) et des feuillets non côté peau (22, 32), lesdits éléments élastiques étant étirables dans la direction latérale. Lesdites parties de ceinture (20, 30) ont une paire de régions de liaison (60) dans lesquelles la surface non côté peau de la partie d'extrémité de direction longitudinale du corps absorbant (10) et les surfaces côté peau des feuillets côté peau (21, 31) sont reliées. Le poids de base des fibres des feuillets côté peau (21, 31) est supérieur au poids de base des fibres des feuillets non côté peau (22, 32). Le poids par unité de longueur de l'adhésif, avec lequel les éléments élastiques (23, 33) et les feuillets côté peau (21, 31) sont reliés, est inférieur au poids par unité de longueur de l'adhésif avec lequel les éléments élastiques (23, 33) et les feuillets non côté peau (22, 32) sont reliés.
PCT/JP2017/038301 2016-12-27 2017-10-24 Article absorbant sous forme de sous-vêtement WO2018123237A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780080621.7A CN110114045B (zh) 2016-12-27 2017-10-24 内裤型吸收性物品

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JP2016252816A JP6718809B2 (ja) 2016-12-27 2016-12-27 パンツ型吸収性物品
JP2016-252816 2016-12-27

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EP4023198A1 (fr) * 2020-12-30 2022-07-06 Paul Hartmann AG Article pour l'incontinence en forme de culotte pour la collecte des excrétions corporelles

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JP7282611B2 (ja) * 2019-06-20 2023-05-29 ユニ・チャーム株式会社 吸収性物品
JP6920403B2 (ja) * 2019-11-29 2021-08-18 ユニ・チャーム株式会社 パンツ型使い捨ておむつ
JP6976383B1 (ja) * 2020-05-29 2021-12-08 ユニ・チャーム株式会社 吸収性物品

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JP2008272426A (ja) * 2007-03-30 2008-11-13 Daio Paper Corp パンツ型使い捨ておむつ
JP2011147614A (ja) * 2010-01-21 2011-08-04 Unicharm Corp 使い捨てのパンツ型着用物品
JP2013144246A (ja) * 2013-04-30 2013-07-25 Unicharm Corp 着用物品
WO2016033282A1 (fr) * 2014-08-27 2016-03-03 The Procter & Gamble Company Structure de culotte comportant un profil de bord de jambe arrière efficacement fabriqué et esthétiquement plaisant

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JP4363842B2 (ja) * 2002-12-20 2009-11-11 ユニ・チャーム株式会社 使い捨て着用物品
EP2638888B1 (fr) * 2007-09-05 2015-01-28 Uni-Charm Corporation Article absorbant
DE102012208393A1 (de) * 2012-05-18 2013-11-21 Paul Hartmann Ag Inkontinenzartikel in Höschenform
CN107205870A (zh) * 2015-02-09 2017-09-26 Sca卫生用品公司 裤型吸收制品

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JP2005253732A (ja) * 2004-03-12 2005-09-22 Uni Charm Corp 使い捨ての着用物品
JP2008272426A (ja) * 2007-03-30 2008-11-13 Daio Paper Corp パンツ型使い捨ておむつ
JP2011147614A (ja) * 2010-01-21 2011-08-04 Unicharm Corp 使い捨てのパンツ型着用物品
JP2013144246A (ja) * 2013-04-30 2013-07-25 Unicharm Corp 着用物品
WO2016033282A1 (fr) * 2014-08-27 2016-03-03 The Procter & Gamble Company Structure de culotte comportant un profil de bord de jambe arrière efficacement fabriqué et esthétiquement plaisant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4023198A1 (fr) * 2020-12-30 2022-07-06 Paul Hartmann AG Article pour l'incontinence en forme de culotte pour la collecte des excrétions corporelles

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CN110114045B (zh) 2022-03-15
CN110114045A (zh) 2019-08-09
JP2018102654A (ja) 2018-07-05

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