WO2023276530A1 - Article absorbant de type culotte - Google Patents

Article absorbant de type culotte Download PDF

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Publication number
WO2023276530A1
WO2023276530A1 PCT/JP2022/022154 JP2022022154W WO2023276530A1 WO 2023276530 A1 WO2023276530 A1 WO 2023276530A1 JP 2022022154 W JP2022022154 W JP 2022022154W WO 2023276530 A1 WO2023276530 A1 WO 2023276530A1
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WO
WIPO (PCT)
Prior art keywords
absorbent article
pants
type absorbent
waist
engaging
Prior art date
Application number
PCT/JP2022/022154
Other languages
English (en)
Japanese (ja)
Inventor
淳 工藤
遥 市原
英之 木下
規世子 西村
夕里子 森実
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
Priority claimed from JP2021108178A external-priority patent/JP2023005911A/ja
Priority claimed from JP2021108179A external-priority patent/JP2023005912A/ja
Priority claimed from JP2021108180A external-priority patent/JP2023005913A/ja
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 CN202280038960.XA priority Critical patent/CN117479910A/zh
Priority to KR1020237041291A priority patent/KR20240023508A/ko
Publication of WO2023276530A1 publication Critical patent/WO2023276530A1/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
    • A61F13/56—Supporting or fastening means

Definitions

  • the present invention relates to pants-type absorbent articles.
  • a pants-type absorbent article that can be used as a tape type (unfolded type) by separating a part of the waist member of the pants-type absorbent article is known.
  • a diaper that can be used in either a pants-type manner in which the two sides are joined together or an open-type manner in which opposite sides thereof are joined with fastening pieces.
  • Patent Document 2 discloses a pants-type diaper that can be opened in a double-door fashion by providing a pair of fracture guide lines on the ventral side of the exterior body and cutting the exterior body along the fracture guide lines.
  • This pants-type diaper is a double-use disposable diaper that can be used as a tape-type diaper by using a fastening tape that is pulled out after opening.
  • the problem to be solved by the present invention is at least one of the following first to third problems.
  • the first issue is as follows.
  • a cutting line for separating the front body from the back body is provided at a portion of the front body adjacent to a joint where the front body and the back body are joined at opposing sides.
  • the disposable diaper can connect the front body and the back body through the fastening piece extending from the opposite side of the back body after being separated along the front body.
  • the diaper of Patent Literature 1 is designed on the premise that it is worn by the wearer, not by the wearer himself/herself.
  • the present invention has been made in view of the above problems, and its object is to provide a pants-type absorbent article that can be used as a tape type and is easy to wear by the wearer. That's what it is.
  • the second issue is as follows.
  • the person himself/herself puts on and takes off the pants-type absorbent article.
  • the wearer wraps the waist member separated by the tear guide line around one thigh, pulls the separated part of the waist member to the front side of the thigh, and places the fastening tape (engagement member) on the thigh. ) is envisioned. By doing so, the fastening tape can be stably engaged.
  • the rupture guide lines are formed on the inner side of both lateral side edges of the lower band member (absorbent main body) having the absorbent core. Therefore, the wearer holds the lower band member when engaging the fastening tape, but the lower band member is long in the back direction (vertical direction) of the diaper and continues to the rear side, making it difficult to hold. Moreover, when engaging the fastening tape, the wearer has to pull the lower band member to the front side of the thigh, which makes it difficult to wear. Alternatively, the fastening tape must engage the portion of the loincloth that is unstable between the thighs. As described above, there is room for improvement in terms of ease of putting on pants-type absorbent articles, which can also be used as tape-type absorbent articles, when the wearer himself/herself puts them on.
  • the present invention has been made in view of the above problems, and its object is to provide a pants-type absorbent article that can be used as a tape type and is easy to wear by the wearer. That's what it is.
  • Patent Document 2 describes a pants-type absorbent article that can be used as a tape type as described above, and is used for rehabilitation in which elderly people wear pants by themselves by putting on and taking off the pants-type absorbent article while the wearer remains in the form of pants-type. described as suitable. On the other hand, it is described that a caregiver can easily change diapers by making the pants-type absorbent article tape-shaped. However, it is also possible for the wearer to wear the pants-type absorbent article, which can also be used as a tape-type, in the form of a tape-type.
  • the wearer wraps the waist member separated by the tear guide line around one thigh, pulls the separated part of the waist member to the front side of the thigh, and places the fastening tape (engagement member) on the thigh. ) is envisioned. By doing so, the fastening tape can be stably engaged.
  • the wearer wraps the pants-type absorbent article around one thigh while sitting on the toilet or standing half-assed near the toilet, the pants-type absorbent article hangs down from the thigh. Parts of the article may come into contact with the toilet bowl. As a result, the sanitary condition of the pants-type absorbent article is degraded.
  • the present invention has been made in view of the above problems, and the object thereof is to provide a tape-type adhesive tape that can be used by the wearer himself/herself to maintain good sanitary conditions.
  • the main invention for achieving the first object is an absorbent body having a vertical direction, a horizontal direction, and a front-back direction that intersect each other, and an absorbent body and an absorbent body arranged in the front-back direction so as to overlap the absorbent body, It has a front waistline portion and a rear waistline portion, and has a waistline member that expands and contracts in the left-right direction, and an engaging member that removably engages a non-skin side surface of the front waistline portion, wherein the front waistline portion and the back waistline portion.
  • a pants-type absorbent article for adults having a rear waist portion joined thereto, wherein the engaging member is joined to the front waist portion, and between both side edges of the front waist portion in the left-right direction,
  • the front waist portion has a high-elasticity portion having an elastic modulus larger than that of the surrounding area in at least a part of an overlapping region that overlaps with the engaging member in a plan view.
  • the main invention for achieving the above-mentioned second object has a vertical direction, a horizontal direction, and a front-back direction that intersect each other, an absorbent main body, and a front that is arranged overlapping the absorbent main body in the front-back direction. It has a waistline portion and a rear waistline portion, and has a waistline member that expands and contracts in the left-right direction, and an engaging member that removably engages with the front waistline portion, and the front waistline portion and the rear waistline portion are paired.
  • the minimum length in the vertical direction of the portion of the front waist portion that overlaps with the engaging member is 80 mm or more and 150 mm or less, and the minimum length in the vertical direction of the joint portion on the one side in the left-right direction is
  • the pants-type absorbent article has a length of 100 mm or more and 160 mm or less.
  • the main invention for achieving the above-mentioned third object is an absorbent main body having a longitudinal direction, a width direction, and a front-rear direction that intersect with each other, and having an absorbent core;
  • a pants-type absorbent article for adults comprising: a waist member having a front waist portion and a rear waist portion arranged in parallel; and an engaging member having an engaging portion that removably engages with the front waist portion. a center line connecting the center in the width direction of one end of the engaging portion in the longitudinal direction and the center in the width direction of the other end in the longitudinal direction of the engaging portion
  • the lowest end of the absorbent core is positioned above the lowest end of the pants-type absorbent article. It is an underpants-type absorbent article.
  • the effect of the present invention on the first problem is that it can be used as a tape type, and can provide a pants-type absorbent article that is easy to wear by the wearer.
  • the effect of the present invention on the second problem is that it can be used as a tape type, and can provide a pants-type absorbent article that is easy to wear by the wearer.
  • the effect of the present invention on the third problem is that it can be used as a tape type, and can provide a pants-type absorbent article that can be used while maintaining a good sanitary condition even when the wearer puts it on himself.
  • FIG. 1 is a schematic perspective view of a napkin 1
  • FIG. Fig. 2 is a schematic plan view of the napkin 1 in an unfolded and stretched state, viewed from the skin side in the thickness direction.
  • FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. 2; 4A and 4B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a.
  • Fig. 3 is a developed plan view of the napkin 1 in a state where the front waistline portion 20f is separated from the rear waistline portion 20b along the perforated line 25; 6A to 6C are diagrams illustrating an example of how the wearer wears the napkin 1.
  • FIG. Fig. 2 is a schematic plan view of the napkin 1 in an unfolded and stretched state, viewed from the skin side in the thickness direction.
  • FIG. 3 is a schematic cross-sectional view taken along the line AA of FIG. 2
  • 4A and 4B are schematic cross-sectional
  • FIG. 7A to 7D are diagrams illustrating an example of how the wearer wears the napkin 1.
  • FIG. It is the front view which looked at the underpants type napkin 1 from the front side. It is the front view which looked at the underpants type napkin 1 from the front side.
  • 2 is a front view of the napkin 1 with the tab 30 engaged after being separated along the perforation line 25, viewed from the front side.
  • FIG. Fig. 2 is a schematic plan view of the napkin 1 in an unfolded and stretched state, viewed from the skin side in the thickness direction.
  • FIG. 12 is a schematic cross-sectional view taken along line AA of FIG. 11; 13A and 13B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a.
  • FIG. 3 is a developed plan view of the napkin 1 in a state where the front waistline portion 20f is separated from the rear waistline portion 20b along the perforated line 26;
  • 15A to 15C are diagrams illustrating an example of how the wearer wears the napkin 1.
  • FIG. 16A to 16D are diagrams illustrating an example of how the wearer wears the napkin 1.
  • FIG. It is the front view which looked at the underpants type napkin 1 from the front side. It is a front view of the napkin 1 where the front waistline part 20f was isolate
  • FIG. 4 is a diagram showing a portion of the rear waist portion 20b in a state where the front waist portion 20f is separated on one side in the left-right direction and the tab 30 is opened outward.
  • Fig. 3 is a front view of the napkin 1 in which the front waistline portion 20f is separated from the rear waistline portion 20b on both sides in the left-right direction.
  • Fig. 3 is a developed plan view of the napkin 1 in a state where the front waistline portion 20f is separated from the rear waistline portion 20b along the perforated line 26; It is the front view which looked at the underpants type napkin 1 from the front side.
  • FIG. 4 is a front view of a state in which the napkin 1 is held so that a center line CL11 along the vertical direction of the engaging portion 32 is horizontal.
  • FIG. FIG. 24 is a front view of a state in which a modified napkin 1 is held in the same manner as in FIG. 23;
  • It has a vertical direction, a horizontal direction, and a front-back direction that intersect with each other, and includes an absorbent body, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent body in the front-back direction,
  • An adult pants-type absorbent article having a stretchable waist member and an engaging member detachably engaged with the non-skin side of the front waist portion, wherein the front waist portion and the back waist portion are joined together.
  • the engaging member is joined to the front waistline portion, and between both side edges of the front waistline portion in the left-right direction, the front waistline portion has the engagement member
  • the underpants-type absorbent article is characterized in that at least a part of the overlapped region has a high-elasticity portion having a higher elastic modulus than the surrounding area.
  • the engaging member before wearing, the engaging member is held with one hand and spread outward in the left-right direction. While holding the region corresponding to the region with the other hand, if a pulling force is applied to the outside in the left-right direction so as to separate them from each other, the high-elasticity portion is difficult to stretch, so the front waist portion is likely to tear at the high-elasticity portion. .
  • the front waist portion includes an upper region including the upper edge in the vertical direction or a lower edge in at least a part of the region overlapping the engaging member in the left-right direction. It is desirable to have the high elastic portion in the lower region.
  • the upper edge or the lower edge of the front waistline portion is the starting point of tearing when the front waistline portion is torn. Since the high-elasticity portion is a portion that is difficult to stretch and is easy to tear, the upper region including the upper edge or the lower region including the lower edge has such a high-elasticity portion, so that the starting point of tearing becomes easy to tear, The wearer can smoothly perform the tearing action.
  • the minimum length of the front waistline portion in the vertical direction in the region where the front waistline portion and the engaging member overlap in the left-right direction is 80 mm or more. 150 mm or less is desirable.
  • the wearer can easily tear the front waist portion. If the length of the front waist portion in the vertical direction is too short, the area covering the wearer's body becomes too small, and there is a risk of causing anxiety. can be suppressed.
  • the highly elastic portion of the front waist portion is provided with a perforation line having a length in the vertical direction.
  • the highly elastic portion is a portion that is difficult to stretch and is easily torn, providing a perforation line in such a highly elastic portion makes the front waist portion easier to tear.
  • both side portions in the left-right direction of the front waistline portion and the back waistline portion are joined by a pair of joints, and in a natural state, the length of the joints in the vertical direction is The length is preferably longer than the length of the perforation line.
  • the engaging member has an engaging portion that engages with the non-skin side surface of the front waist portion, and abuts against the abdominal side of the front waist portion along the perforation line. It is preferable that the engaging portion is positioned inside the cut line in the left-right direction before the portion is separated from the rear waist portion.
  • the engaging member In the pants-type absorbent article, in a state before the abdominal contact portion of the front waistline portion is separated from the back waistline portion along the cut line, the engaging member is positioned along the cut line. It is desirable that the upper end of the cut line is positioned above the upper end of the engaging member, or the lower end of the cut line is positioned below the lower end of the engaging member. .
  • the perforation line can be visually recognized before opening the engaging member, the user can easily determine at which position the front waist portion should be torn, thereby improving the operability. be able to.
  • the high elastic portion has a length of 10 mm or more from the cut line toward the inner side in the left-right direction in the natural state.
  • the portion of the highly elastic portion arranged inside the cut line is used when engaging the engaging member with the front waist portion.
  • This is the part that serves as a knob. If the portion to be the knob is a highly elastic portion that is hard to deform, it is difficult to curl up and the wearer can easily pick it up. In addition, it becomes easier to pick up by having the width of the thumb or more as the part to be picked.
  • the length from the inner end of the engaging portion to the inner end of the engaging member in the left-right direction is 5 mm or more and 50 mm or less.
  • the length from the inner end of the engaging portion to the inner end of the engaging member is set to be 5 mm or more, it is possible to pinch the inner side of the engaging portion from the inner end with the fingertips. , the tab 30 can be easily peeled off from the front waist portion.
  • the length is set to 50 mm or less, the distance from the position where the engaging member is pinched to the cut line does not become too long, and the deterioration of operability when tearing the front waist portion along the cut line is prevented. can be done.
  • the pants-type absorbent article has a pair of the engaging members, and the pair of engaging members are joined to the front waist portion on both sides in the left-right direction.
  • the front waist portion has the high-elasticity portion in at least a part of each of the overlapping regions on both sides in the left-right direction that overlap the pair of engaging members, and the left and right sides of the front waist portion It is preferable that a low-elasticity portion having a smaller elastic modulus than the high-elasticity portion is continuously provided between the high-elasticity portions on both sides in the direction.
  • the engaging member has an engaging portion that engages the non-skin side surface of the front waist portion, and the engaging portion is engaged with the front waist portion; Further, it is preferable that the low-elasticity portion has a portion that overlaps at least a portion of the engaging portion in plan view.
  • the engaging portion is more likely to be engaged with the portion of the low elastic portion that is easily deformed (easily stretched) than the highly elastic portion that is difficult to be deformed, when engaging Having a portion where the low-elasticity portion overlaps at least a portion of the engaging portion makes it easier for the wearer to engage the engaging portion.
  • the maximum length of the engaging member in the left-right direction is 20 mm or more and 120 mm or less.
  • the front waistline part can be opened without changing hands after the engaging member is held by hand and opened to tear the front waistline part. easier to engage with.
  • the front waist portion has a cut line having a length in the vertical direction at one end in the left-right direction, and the front waist portion extends along the cut line.
  • the engagement member is engaged with the non-skin side surface of the front waist portion, and the engagement member is positioned under the front waist portion. It is desirable to have a protruding portion that protrudes downward in the vertical direction from the side edge.
  • the lower edge of the front waistline portion is hidden by the projecting portion of the engagement member in the portion overlapping with the engaging member, so that the edge of the front waistline portion after tearing (lower edge) is hidden. side edges) become less visible. Therefore, it is possible to bring the appearance closer to that of underwear.
  • It has a vertical direction, a horizontal direction, and a front-back direction that intersect with each other, and includes an absorbent body, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent body in the front-back direction, and is stretchable in the left-right direction. and an engaging member detachably engaged with the front waistline, wherein the front waistline and the rear waistline are joined at a pair of joints. wherein the engagement member is joined to the waist member at the joint portion on one side in the left-right direction, and the front waist portion overlaps with the engagement member in the left-right direction.
  • the minimum vertical length of the part is 80 mm or more and 150 mm or less, and the vertical length of the joint portion on the one side in the horizontal direction is 100 mm or more and 160 mm or less. pants-type absorbent article.
  • the length of the abdominal contact portion in the vertical direction is relatively short, making it easier for the wearer to hold the abdominal contact portion.
  • the vertical length range of the joint part slightly longer than the ventral contact part, when the wearer wraps the waist member around the thigh, the entire rear part of the pants-type absorbent article is pulled up. easier.
  • the absorbent body has vertical, horizontal, and longitudinal directions that intersect with each other, and includes an absorbent main body, and a front waistline portion and a rear waistline portion that are superimposed on the absorbent main body in the front-rear direction, and an engaging member provided on one side of the waist member in the left-right direction and detachably engaged with the front waist portion, wherein the front waist portion and the rear waist portion is joined at a pair of joints, wherein the ventral contact part of the front waistline part is connected to the back waistline part along the inner edge of the joint part on one side in the left-right direction and in a natural state, the length from the one end of the ventral contact portion in the left-right direction to the inner end of the joint portion on the other side is the length of the rear in the left-right direction.
  • a pants-type absorbent article wherein the length from the one end of the waist portion to the inner end of the joint portion on the other side is longer than that of the waist portion.
  • the length of the abdominal contact portion in the left-right direction tends to be long, and when the wearer wraps the waist member around the thigh, It becomes easier to pull the ventral contact part to the front side of the thigh.
  • the length of the rear waist portion in the left-right direction tends to be shortened, and when the waist member is wrapped around the thigh, the pants-type absorbent article is less likely to sag and contact with the toilet bowl can be suppressed.
  • the front waist portion has a cut line having a length in the vertical direction at the one end in the left-right direction, and the front waist portion extends along the cut line.
  • the inner side of the joint portion on the other side from the one end of the ventral contact portion in the lateral direction.
  • the length of the abdominal contact portion in the left-right direction tends to be long, and when the wearer wraps the waist member around the thigh, It becomes easier to pull the ventral contact part to the front side of the thigh.
  • the length of the rear waist portion in the left-right direction tends to be shortened, and when the waist member is wrapped around the thigh, the pants-type absorbent article is less likely to sag and contact with the toilet bowl can be suppressed.
  • the absorbent main body has an absorbent core
  • the ventral contact portion of the front waistline portion is separated from the back waistline portion along the perforation line
  • the engaging member is spread to the one side in the left-right direction and in a natural state, from the one-side end of the absorbent core on the front side in the left-right direction to the one-side end of the ventral contact portion
  • the length is 50 mm or more and 200 mm or less
  • the length from the one side end of the rear absorbent core in the left-right direction to the one side end of the engaging member is 100 mm or more and 300 mm or less.
  • the length of the abdominal contact portion in the left-right direction tends to be long, and when the wearer wraps the waist member around the thigh, It becomes easier to pull the ventral contact part to the front side of the thigh.
  • the engagement member that opens outward in the left-right direction and the engagement member that opens outward in the left-right direction when the length of the rear waist portion in the left-right direction tends to be shortened and the waist member is wound around the thigh. contact with the toilet bowl.
  • a pants-type absorbent article characterized by:
  • the inclination of the wearer's hand holding the abdominal contact portion from the side of the waist opening coincides with the inclination of the cut end of the abdominal contact portion, so that the wearer can apply the abdominal contact portion. Easier to hold the joint.
  • the front waist portion has a cut line having a length in the vertical direction at the one end in the left-right direction, and the engaging member
  • An engaging portion that engages with the waist portion is provided, the ventral contact portion of the front waist portion is separated from the rear waist portion along the cut line, and the engaging member is located on the one side in the left-right direction.
  • the front waist portion separated from the ventral abutting portion is located inside the engaging portion in the left-right direction in a state of being spread wide and in a natural state. pants-type absorbent article.
  • the engaging portion since the engaging portion is not covered by the front waistline portion remaining on the joint side, the engaging member can be engaged with the front waistline portion by the engaging portion.
  • the front waistline portion remaining on the joint side rubs against the front waistline portion, making it difficult for the front waistline portion to be misaligned with respect to the rear waistline portion and the engaging member.
  • the front waist portion includes a stretchable region that stretches in the left-right direction, a low stretchable region that stretches less than the stretchable region, and a perforation line having a length in the vertical direction.
  • the low-stretch region is arranged on the one side in the left-right direction relative to the stretch region, and the cut line is arranged between both side ends of the low-stretch region in the left-right direction
  • the front waist part can be easily torn along the cut line. Since the cut end of the belly side contact portion is less likely to be rounded by the low stretchable region, the engaging member can be stably engaged with the front waist portion. In addition, since the cut ends of the abdomen-side contact portion and the portion of the front waistline portion remaining on the joint portion side are less likely to curl due to the low stretchable region, discomfort during wearing can be reduced.
  • a pants-type absorbent article which is in an unfolded and stretched state, the length in the left-right direction from the inner end of the joint on the one side in the left-right direction to the cut line 1.
  • a pants-type absorbent article wherein a length from the cut line to the other end of the low stretchable region in the left-right direction is longer.
  • the end portion (low-elasticity region) of the abdominal contact portion that is difficult to roll up is long in the left-right direction, when the wearer wraps the waist member around the thigh, It is easy to pull the ventral contact part to the front side of the thigh.
  • the front waist portion remaining on the joint side can be covered by the end portion (low-elasticity region) of the abdomen-side contact portion that is difficult to roll up, thereby reducing discomfort during wearing.
  • This underpants-type absorbent article is characterized in that the engaging members are provided on both sides of the waist member in the left-right direction.
  • the waist member can be wrapped around both thighs of the wearer when worn in the form of a tape, the article can be easily put on and taken off without taking off trousers, shoes, or the like. .
  • one engaging member is provided on each side of the waist member in the left-right direction, and the engaging member has an engaging portion that engages with the front waist portion.
  • a pants-type absorbent article characterized by having one.
  • the engaging member has an engaging portion that engages with the front waistline portion
  • the absorbent main body has an absorbent core and is in an unfolded and stretched state.
  • the length in the vertical direction from the upper end of the front waistline portion to the upper end of the front side of the absorbent core is longer than the length in the vertical direction of the engaging portion.
  • the engaging portion and the absorbent core are likely to be displaced in the vertical direction. Therefore, the absorptive core allows the engaging portion to be engaged with a region where the stretchability of the waist member is not reduced, and the engagement strength of the engaging member is increased.
  • the vertical length from the upper end of the rear waistline portion to the upper end of the rear side of the absorbent core is A pants-type absorbent article, wherein the length of the engaging portion in the vertical direction is shorter than that of the engaging portion.
  • the absorbent core increases the rigidity of the upper end of the rear waist portion, when the waist member is wrapped around the thigh, the rear waist portion is less likely to sag and contact the toilet bowl. can be suppressed.
  • the engaging member has an engaging portion that engages with the non-skin side surface of the front waist portion, and the color of the non-skin side surface of the front waist portion and the engaging member are the same.
  • the color of the non-skin side of the member is the same color, and the engaging member has a plurality of compressed portions in which the engaging member is compressed in the thickness direction in the region where the engaging portion is arranged.
  • the appearance is improved. Further, the position of the engaging portion can be easily recognized from the non-skin surface side (outside) of the engaging member, and the engaging member can be easily engaged with the front waist portion.
  • a pants-type absorbent article characterized by comprising:
  • the free ends of the engaging members are tapered, making it easier for the wearer to hold the engaging members.
  • the engaging member is less likely to come into contact with the wearer during breathing, leg lifting, or the like, and discomfort during wearing can be reduced.
  • a pants-type absorbent article characterized by:
  • the pants-type absorbent article since the length in the vertical direction is short, the pants-type absorbent article does not easily hang down when the waist member is wrapped around the thighs, and contact with the toilet bowl can be suppressed.
  • the engaging member has an engaging portion that engages with the front waistline portion, and the engaging member has an engaging portion that engages with the front waist portion, and the engaging member is positioned at the inner end of the joint portion on the one side in the left-right direction.
  • the length of the engagement member in the vertical direction is longer than the length of the front waistline portion in the vertical direction, and the position of the front waistline portion overlaps with the engagement portion in the horizontal direction. is longer than the maximum vertical length of the engaging portion.
  • the length of the front waistline portion in the vertical direction is short, making it easier for the wearer to hold the front waistline portion.
  • the length of the engaging member in the vertical direction is long, when the wearer wraps the waist member around the thigh, the entire rear portion of the pants-type absorbent article can be easily pulled up from the rear side of the thigh.
  • the entire area of the engaging portion in the vertical direction can be engaged with the front waist portion.
  • the waist member has a continuous stretchable region that stretches in the lateral direction at least in a region where the position in the lateral direction overlaps with the absorbent main body.
  • the front waist part can be easily pulled to the front side of the thigh.
  • the rear waist part is less likely to sag and contact with the toilet bowl can be suppressed.
  • the maximum length of the engaging member in the left-right direction is 20 mm or more and 120 mm or less. absorbent article.
  • the absorbent main body has an absorbent core
  • the engaging member has an engaging portion that engages with the front waistline portion
  • the absorbent core A pants-type absorbent article, wherein the engaging portion is positioned on the one side in the left-right direction.
  • the engaging portion since the engaging portion is likely to be engaged with the area that does not overlap with the absorbent core in the thickness direction and the stretchability of the front waistline portion is not reduced, the engaging portion can be easily engaged. Engagement strength of the members increases.
  • An absorbent main body having a longitudinal direction, a width direction, and a front-rear direction that intersect with each other, and including an absorbent core, and a waistline including a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waist portion, wherein one side of the engaging portion in the longitudinal direction
  • the underpants-type absorbent article is arranged such that a center line connecting the widthwise center of the end and the widthwise center of the other end of the engaging portion in the vertical direction is horizontal. , wherein the lowest end of the absorbent core is positioned above the lowest end of the pants-type absorbent article when the absorbent core is held.
  • the wearer when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the lowest end of the absorbent core becomes the lowest end of the product. Compared to the case, the absorbent core is less likely to hang down, and contact of the pants-type absorbent article with the toilet bowl can be suppressed. Therefore, the sanitary conditions of the pants-type absorbent article can be maintained in good condition.
  • the absorbent body has a vertical direction, a width direction, and a front-rear direction that intersect with each other, and includes an absorbent main body including an absorbent core, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waist portion, and is folded in two in the front-rear direction at the two-folding portion.
  • a pants-type absorbent article characterized by being shorter than the length in the vertical direction.
  • the pants-type absorbent article when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the pants-type absorbent article hangs down from the bottom of the thigh (horizontal line).
  • the length of the absorbent article is shortened, and contact of the pants-type absorbent article with the toilet bowl can be suppressed.
  • An absorbent main body having a longitudinal direction, a width direction, and a front-rear direction that intersect with each other, and including an absorbent core, and a waistline including a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waistline portion, wherein the absorbent main body on the front side extends from the longitudinal direction.
  • a first center that is the center in the width direction of one end, a second center that is the center in the width direction of a center line that bisects the absorbent main body on the front side in the longitudinal direction, and the longitudinal direction.
  • the pants-type absorbent article When the pants-type absorbent article is held so that the center line connecting the other end in the longitudinal direction and the center in the width direction is horizontal, the first center and the second center and a line connecting the second center and the third center has the same inclination with respect to the horizontal direction.
  • the part on the crotch side of the absorbent main body in the vertical direction is less likely to break than the part on the waist side. Therefore, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the absorbent main body (absorbent core) does not easily hang down, and contact of the absorbent main body with the toilet bowl can be suppressed. .
  • the wearer can easily pull up the absorbent main body between the thighs after the pants-type absorbent article is tape-shaped and the waist member is wrapped around the thighs.
  • the back absorbent main body which is likely to come into contact with the toilet bowl, can be positioned on the upper side, and the contact of the pants-type absorbent article with the toilet bowl can be further suppressed.
  • another engaging member is provided at a position opposite to the engaging member in the width direction, and the pants-type absorbent article is arranged such that the center line is horizontal. 2.
  • the engagement member (another engagement member) on the opposite side is attached. is easily visible, the wearer can easily shift to the next action of opening the engaging member on the opposite side and breaking the front waist portion.
  • another engaging member is provided at a position opposite to the engaging member in the width direction, and the pants-type absorbent article is arranged such that the center line is horizontal. at least a part of the engaging portion provided by the other engaging member with respect to a vertical line passing through the end of the engaging portion provided on the engaging member on the girth side in the vertical direction when the sexual article is held. is located on the side of the waist.
  • the engagement member (another engagement member) on the opposite side is attached. is located near the wearer. Therefore, the engaging member on the opposite side is easily visible, and the wearer can easily grasp the engaging member on the opposite side from under the thigh.
  • the absorbent body has a vertical direction, a width direction, and a front-rear direction that intersect with each other, and includes an absorbent main body including an absorbent core, and a front waistline portion and a rear waistline portion that are arranged to overlap the absorbent main body in the front-rear direction. and an engaging member having an engaging portion that removably engages with the front waistline portion, wherein the absorbent core is disposed in the underpants-type absorbent article for adults.
  • a pants-type absorbent article characterized in that the volume of a portion of the pants-type absorbent article is 100 cm 3 or more and 250 cm 3 or less.
  • the mass and size of the absorbent core can be reduced, and when the wearer forms the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, , the absorbent core is less likely to sag, and contact of the pants-type absorbent article with the toilet bowl can be suppressed.
  • a pants-type absorbent article as described above characterized in that the width of the absorbent core is 50 mm or more and less than 100 mm.
  • a pants-type absorbent article characterized by:
  • the volume of the absorbent core can be reduced. It is possible to suppress the contact of the mold absorbent article with the toilet bowl.
  • a pants-type absorbent article as described above characterized in that the mass of the absorbent core is 10 g or more and 40 g or less.
  • the engaging portion provided in the engaging member is provided at a position outside the absorbent main body on the front side in the width direction, and
  • the absorbent main body allows the engaging portion to be engaged with the portion of the front waistline portion where stretchability is not reduced, thereby increasing the engaging strength.
  • one engaging member having one engaging portion is provided on one side of the waist member in the width direction, and the other side of the waist member in the width direction is provided with one engaging member having one of the engaging portions.
  • the engaging member can be easily engaged with the front waistline portion.
  • the front waistline portion has a cut line having a length in the vertical direction, and the front waistline portion is not torn in the vertical direction along the cut line. 2.
  • the engagement members are easily recognized by the wearer, and the underpants-type absorbent article can be easily used as a tape type.
  • the front waist portion has a continuous stretchable region that stretches in the width direction at least in a region where the position in the width direction overlaps with the absorbent main body. pants-type absorbent article.
  • the front waist portion fits the wearer, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thigh, the front side of the absorbent article is It is possible to suppress sagging of the pants-type absorbent article.
  • both side portions in the width direction of the front waist portion and the rear waist portion are joined by a pair of joint portions, and the rear waist portion
  • a pants-type absorbent article characterized in that an area between a pair of joints has a continuous elastic area that expands and contracts in the width direction.
  • a pants-type absorbent article characterized by:
  • This underpants-type absorbent article is characterized in that the absorbent main body has an absorbent elastic member that expands and contracts along the longitudinal direction of the absorbent main body.
  • the pants-type absorbent article has an extension member extending from at least one of the front waistline portion and the rear waistline portion toward the crotch side in the vertical direction,
  • the underpants-type absorbent article, wherein the extending member has a stretchable region that stretches in the width direction.
  • the back waist portion has a non-skin side sheet forming the non-skin side, and the waist side end of the non-skin side sheet in the longitudinal direction is the skin side.
  • a pants-type absorbent article characterized in that the absorbent body is folded back over the body and covers the longitudinal end of the absorbent body from the skin side.
  • This underpants-type absorbent article is characterized in that the absorbent main body has a region in which the absorbent core does not exist on the side portion in the width direction.
  • the rigidity of the side portion of the absorbent main body is low. It becomes easier to rotate the waist member along the circumferential direction of the thigh.
  • At least one of the front waistline portion and the rear waistline portion has a stretchable region that stretches in the width direction
  • the absorbent main body includes, at the side portions in the width direction
  • the absorbent main body has side elastic members that expand and contract along the longitudinal direction, and the stress in the width direction in the elastic region of at least one of the front waist portion and the rear waist portion is generated by the side elastic member.
  • the pants-type absorbent article while the waist member is fitted to the wearer, when the wearer turns the pants-type absorbent article into a tape shape and wraps the waist member around the thighs, the pants-type absorption It is possible to suppress the sagging of the functional article.
  • the wearer since the side portions of the absorber are difficult to stretch, the wearer can easily rotate the waist member along the circumferential direction of the thigh after wrapping the waist member around the thigh.
  • an underpants-type (shorts-type) napkin 1 (hereinafter also simply referred to as "napkin 1") will be described as an example of the underpants-type absorbent article according to the present invention.
  • the pants-type absorbent article also includes pants-type diapers and the like.
  • FIG. 1 is a schematic perspective view of the napkin 1.
  • FIG. FIG. 2 is a plan view of the napkin 1 in the unfolded and stretched state, viewed from the skin side in the thickness direction.
  • FIG. 3 is a schematic cross-sectional view taken along line AA of FIG.
  • the napkin 1 has “vertical direction”, “horizontal direction”, and “front-back direction” that intersect (perpendicularly) each other. Moreover, as shown in FIG. 3, it has a "thickness direction” which is the direction in which each member is laminated.
  • the waist side of the wearer is defined as the “upper side”
  • the crotch side of the wearer is defined as the “lower side”.
  • the side facing the wearer's abdomen when worn is defined as the "front side”
  • the side facing the wearer's back is defined as the “rear side”.
  • the side that comes into contact with the wearer's skin when the napkin 1 is worn by the wearer is defined as the "skin side”
  • the opposite side is defined as the "non-skin side”.
  • the napkin 1 of the present embodiment is arranged so as to overlap a liquid-absorbing absorbent main body 10 that absorbs excretions such as menstrual blood and the non-skin side of the absorbent main body 10, and has a front waist portion 20f and a rear waist portion 20b. and a pair of tabs 30 (corresponding to engaging members) provided on both sides of the waist member 20 in the left-right direction.
  • the unfolded state of the napkin 1 shown in FIG. 2 is a state in which the pair of side joints 40 provided on both sides in the left-right direction of the napkin 1 are separated and the napkin 1 is opened and unfolded in a plane.
  • the napkin 1 is folded in two at the center position CL in the vertical direction from the unfolded state shown in FIG. joint) to form a pants type.
  • a bonding method for the site bonding portion 40 a well-known bonding method such as heat welding or ultrasonic welding can be used.
  • a front waist portion 20f and a rear waist portion 20b are connected in an annular fashion to form one waist opening 1a and a pair of leg openings 1b.
  • the “stretched state” of the napkin 1 means that the entire napkin 1 (the entire product) is stretched by stretching each elastic member (for example, the absorbent elastic member 50 described later, the skin side sheets 22, 23, etc.) included in the napkin 1. is stretched without wrinkles.
  • the dimensions of each member constituting the napkin 1 are the dimensions of the member alone (i.e., the state in which the elastic characteristics of the elastic member are not expressed) It refers to the state in which it is stretched until it matches or is close to the dimension at ).
  • the tabs 30 when comparing the absorbent body 10, the tabs 30 are disengaged (peeled off) and underpants-shaped (before being torn at the perforation line 25). It is preferable to measure and compare at .
  • the tab 30 may be measured either after the napkin 1 has been opened or with it disengaged.
  • the above-described measuring method is an example, and other measuring methods may be used.
  • the absorbent main body 10 has a substantially rectangular shape in plan view with its longitudinal direction along the vertical direction of the napkin 1 .
  • the absorbent main body 10 includes an absorbent core 11 along the longitudinal direction (vertical direction), a top sheet 12 arranged closer to the skin than the absorbent core 11, and an absorbent core 11. and a back sheet 13 arranged on the non-skin side of 11 .
  • the absorbent main body 10 may be provided with sheet members other than this.
  • a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11 in the thickness direction.
  • the absorbent core 11 is a member that absorbs and retains liquid such as menstrual blood, and is formed of, for example, liquid-absorbent fibers such as pulp fibers mixed with superabsorbent polymer (SAP).
  • SAP superabsorbent polymer
  • the absorbent core 11 may be covered with a liquid-permeable sheet member (core wrap sheet) such as tissue paper or nonwoven fabric.
  • the top sheet 12 is a liquid-permeable sheet member that can come into contact with the wearer's skin when worn, and is made of, for example, a hydrophilic air-through nonwoven fabric or spunbond nonwoven fabric.
  • the back sheet 13 is arranged on the non-skin side of the liquid-impermeable sheet 13a for suppressing leakage of liquid such as menstrual blood absorbed by the absorbent core 11 to the outside, and the liquid-impermeable sheet 13a. and a hydrophobic sheet 13b.
  • a resin film or the like is used as the liquid-impermeable sheet 13a
  • a flexible non-woven fabric or the like is used as the hydrophobic sheet 13b.
  • the hydrophobic sheet 13b may not necessarily be provided, and the back sheet 13 may be composed only of the liquid-impermeable sheet 13a.
  • leak-proof walls may be provided on both sides in the left-right direction of the absorbent main body 10 .
  • the leak-proof wall portion is a portion corresponding to a so-called three-dimensional gather. It suppresses leakage of excretory liquid such as menstrual blood to the outside of the absorbent main body 10 .
  • the absorbent main body 10 is provided with a plurality of absorbent elastic members 50 that expand and contract along its longitudinal direction.
  • the absorber elastic member 50 is made of, for example, rubber thread, and in this embodiment, is arranged in a longitudinally stretched state between the liquid-impermeable sheet 13a and the hydrophobic sheet 13b (FIG. 3). .
  • five absorbent body elastic members 50 are provided at predetermined intervals in the left-right direction (see FIG. 2).
  • the expansion ratio of the absorbent elastic member 50 is preferably about 1.4 to 3.3 times.
  • the extension ratio is expressed by a value obtained by dividing the length of the elastic member in the stretched state by the length of the elastic member in the natural state.
  • the extension ratio of the absorbent body elastic member 50 is set to a relatively large ratio. By doing so, as shown in FIG. 8 to be described later, the absorbent main body 10 is lifted toward the wearer's skin side, and the absorbent main body 10 is easily brought into close contact with the wearer's crotch (vaginal opening), and excretory fluid is discharged. leakage can be suppressed.
  • the waist member 20 is an outer body composed of a plurality of sheet members, and includes at least a non-skin-side sheet 21 and skin-side sheets 22 and 23 (see FIG. 3). Further, in the following description, of the waist member 20, in the longitudinal direction, the front waist portion 20f is the portion on the front side (abdominal side) of the central position CL, and the rear side (dorsal side) of the center position CL is the rear waist portion 20f. It is also called a waist portion 20b.
  • the front waist portion 20f is a portion that contacts the ventral side of the wearer's body when the napkin 1 is worn. Further, the rear waist portion 20b is a portion that comes into contact with the back side of the wearer's body when the napkin 1 is worn.
  • the non-skin-side sheet 21 is a non-stretchable sheet member arranged on the most non-skin side of the napkin 1, and is formed of, for example, spunbond nonwoven fabric or SMS nonwoven fabric. As shown in FIG. 2, the non-skin-side sheet 21 of the present embodiment has a shape that narrows inward in the left-right direction at the central portion in the longitudinal direction.
  • the skin-side sheet 22 is a stretchable sheet member laminated on the skin side of the non-skin-side sheet 21 on the front side (abdominal side) in the longitudinal direction.
  • the skin-side sheet 22 is made of stretchable nonwoven fabric, for example.
  • stretchable nonwoven fabric refers to a nonwoven fabric that contains stretchable fibers and extensible fibers with lower contractility than the stretchable fibers and that has been subjected to an appropriate stretching treatment such as gear stretching.
  • the skin-side sheet 22 of the present embodiment can use polyurethane-based elastomer fibers, which are a type of elastic thermoplastic elastomer, as stretchable fibers, and non-elastic thermoplastic resin as stretchable fibers. It is possible to use fibers of polypropylene (PP), which is a type of polyolefin resin.
  • PP polypropylene
  • the skin-side sheet 22 is joined to the non-skin-side sheet 21 by a plurality of scattered sheet joining portions (not shown), whereby the front waist portion 20f is given elasticity at least along the left-right direction. be.
  • the sheet joints are formed using known joining means such as ultrasonic welding.
  • the skin-side sheet 23 is a stretchable sheet member laminated on the skin side of the non-skin-side sheet 21 on the rear side (dorsal side) in the longitudinal direction.
  • the skin-side sheet 23 has the same configuration as the skin-side sheet 22 . That is, the skin-side sheet 23 is formed of a stretchable nonwoven fabric, and is joined to the non-skin-side sheet 21 by a plurality of scattered sheet joining portions (not shown). As a result, the rear waist portion 20b is provided with stretchability in at least the left-right direction.
  • sheet members other than the non-skin-side sheet 21 and the skin-side sheets 22 and 23 may be provided as sheet members constituting the waist member 20 .
  • the waist member 20 may have a three-layer structure in which a non-stretchable non-woven fabric is arranged on the skin side of the stretchable skin-side sheets 22 and 23, and the stretchable non-woven fabric is sandwiched between the non-stretchable non-stretchable non-woven fabrics.
  • the skin-side sheets 22 and 23 may be elastic films.
  • the non-skin side sheet 21 may be separated into the front side and the back side.
  • the non-skin side of the back sheet 13 may be exposed between the front non-skin side sheet 21 and the rear non-skin side sheet 21, or the front non-skin side sheet 21 and the rear non-skin side sheet 21 may be exposed.
  • a separate non-skin-side sheet connecting the non-skin-side sheet 21 may be provided at the crotch portion.
  • the napkin 1 has a pair of tabs 30 (engagement members) detachably engaged with the non-skin side surfaces of the front waistline portion 20f on both sides of the waistline member 20 in the left-right direction.
  • the tab 30 engaged with the non-skin side surface of the front waist part 20f is imaginarily shown.
  • the tab 30 has a base sheet 31 and an engaging portion 32 .
  • the base sheet 31 is a sheet member made of nonwoven fabric or the like. The laterally outer edge of the base sheet 31 is joined to the waistline member 20 by the side joints 40 .
  • the front waistline portion 20f, the rear waistline portion 20b, and the tab 30 are integrally joined by the side joint portion 40.
  • the tab 30 may be joined to the waist member 20 at a location different from the side joints 40 .
  • the engaging portion 32 is provided at the end portion of the base sheet 31 opposite to the side joined by the side joint portion 40 in the left-right direction.
  • the engaging portion 32 is provided on the skin side of the base sheet 31, faces the non-skin side of the front waist portion 20f, and is a member that removably engages the non-skin side of the front waist portion 20f.
  • a male member of a hook-and-loop fastener provided with projections (hook members) that are caught by the fibers forming the non-skin side sheet 21 can be exemplified.
  • the non-skin side surface of the non-skin side sheet 21 may be provided with a member (for example, a female member of a hook-and-loop fastener) with which the engaging portion 32 is easily engaged.
  • FIG. 4A and 4B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a.
  • FIG. 4A is a diagram of a napkin 1 used in a pants type
  • FIG. 4B is a diagram of a napkin 1 used in a tape type.
  • FIG. 5 is a developed plan view of the napkin 1 with the front waistline portion 20f separated from the rear waistline portion 20b along the perforation line 25.
  • the napkin 1 When the napkin 1 is taken out of the package, in the initial state, it is a pants type (Fig. 4A) in which the front waistline portion 20f and the rear waistline portion 20b are connected in a loop. Therefore, the wearer can put on and take off the napkin 1 while it is in the form of pants.
  • Fig. 4A pants type in which the front waistline portion 20f and the rear waistline portion 20b are connected in a loop. Therefore, the wearer can put on and take off the napkin 1 while it is in the form of pants.
  • the front waist portion 20f of the napkin 1 has perforations 25 having lengths in the vertical direction at both ends in the left-right direction. Therefore, the front waistline portion 20f can be vertically broken along the perforation line 25 to separate a part of the front waistline portion 20f from the rear waistline portion 20b.
  • the napkin 1 after separation has a tape shape in which a pair of tabs 30 extend outward in the left-right direction from the rear waist portion 20b. Therefore, the wearer can put on and take off the napkin 1 in the form of a tape.
  • the portion of the front waistline portion 20f separated from the rear waistline portion 20b on at least one side in the left-right direction is also referred to as the "abdominal contact portion 20fA”.
  • a portion of the front waistline portion 20f that remains on the side joint portion 40 side without being separated from the rear waistline portion 20b is also referred to as a "non-separated portion 20fB".
  • FIG. 6A to 6C and 7A to 7D are diagrams explaining an example of how the wearer wears the napkin 1.
  • FIG. A person who wears the napkin 1 generally puts on and takes off the napkin 1 by himself/herself. Also, the wearer attaches and detaches the napkin 1 while sitting on a toilet or the like (not shown) as shown in FIG.
  • the wearer opens the tab 30 on one side in the left-right direction of the pants-type napkin 1 to the outside (one side) in the left-right direction to expose the perforation line 25 .
  • the wearer vertically breaks one end of the front waist portion 20f in the left-right direction along the perforation line 25, and cuts the abdomen, which is a part of the front waist portion 20f.
  • the contact portion 20fA is separated from the rear waist portion 20b.
  • the wearer pulls the cut-off portion of the waist member 20 to the front side of the thigh and wraps the waist member 20 around one thigh, as shown in FIG. 6C.
  • the tab 30 engagement portion 32
  • the non-skin side surface of the front waist portion 20f abdominal contact portion 20fA
  • the side joints 40 are positioned on the thighs, and the absorbent main body 10 (absorbent core 11) hangs down between the thighs. Therefore, the wearer rotates the napkin 1 along the circumferential direction of the thigh (the direction shown on the right thigh in FIG. 7A). Then, as shown in FIG. 7B, the side joints 40 are aligned with one's armpits and the absorbent body 10 is pulled up between the thighs.
  • the wearer opens the tab 30 on the opposite side to the outside in the left-right direction, and moves the other end of the front waist portion 20f in the left-right direction along the perforation line 25 in the up-down direction. It is broken to separate the ventral contact portion 20fA, which is a part of the front waistline portion 20f, from the rear waistline portion 20b.
  • the wearer corrects the inclination of the absorbent main body 10, which is inclined toward the thigh side around which the napkin 1 is wrapped, so as to follow the direction in which the thigh extends. direction center).
  • FIG. 7D the cut-off portion of the waist member 20 is pulled to the front side of the thigh, the waist member 20 is wrapped around the opposite thigh, and the front waist member 20f is placed on the thigh.
  • a tab 30 is engaged on the skin side.
  • the ventral contact portion 20fA of the front waistline portion 20f separated by the perforation line 25 is again annularly connected to the rear waistline portion 20b by the pair of tabs 30.
  • both thighs of the wearer pass through the pair of leg openings 1 b of the napkin 1 .
  • the wearer pulls up the napkin 1 to complete wearing of the napkin 1 .
  • the wearer can visually recognize the tab 30 on the front side of the wearer when using the napkin 1 in a tape shape.
  • the tab 30 can be engaged with the front waist portion 20f while moving. Therefore, the wearability is good when the wearer wears the napkin 1 by himself/herself. Also, when removing the napkin 1, the wearer can remove the tab 30 from the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer.
  • the napkin 1 when the napkin 1 is attached while still in the pants shape, it is possible to take off the napkin 1 in the pants shape, but it is also possible to remove the napkin 1 by tearing the front waist portion 20 f along the cutting line 25 . be. Conversely, when the napkin 1 is attached in a tape-type state, the napkin 1 can be taken off without removing the tab 30 .
  • the tab When fixing to the waist part, if the waist member is difficult to break, there is a risk that the wearer will have to change the grip many times to try to break it, and a part of the napkin will be damaged by applying more force than necessary. There are fears, etc.
  • the napkin 1 of this embodiment has the following configuration. 8 and 9 are front views of the underpants-type napkin 1 viewed from the front side.
  • the front waistline portion 20f and the rear waistline portion 20b each have skin-side sheets 22 and 23 that stretch in the left-right direction and a waist elastic member 24 that stretches in the left-right direction. It has elasticity. That is, at least the central portion in the left-right direction of the front waist portion 20f and the rear waist portion 20b is stretched in the left-right direction by a stretchable region (a low elastic portion 20EA described later) that stretches in the left-right direction, and the napkin 1 fits around the wearer's waist. to fit. Further, as shown in FIG.
  • the front waist portion 20f has high elastic portions 20NA having a higher elastic modulus than the surroundings at both ends in the left-right direction.
  • the high-elasticity portion 20NA in the present embodiment extends from the side edge 20fe to a position overlapping at least a portion of the engaging portion 32 on both sides in the left-right direction of the front waist portion 20f, and in the vertical direction. It is provided from the upper edge 20fup to the lower edge 20fdw of the front waist portion 20f.
  • the high-elasticity portion 20NA is not limited to the above-described range, and is formed between the lateral side edges 20fe, 20fe of the front waistline portion 20f in an overlapping region 20fc (FIG. 8)).
  • the modulus of elasticity of the front waist portion 20f is determined, for example, by cutting out the high-elasticity portion 20NA from the front waist portion 20f and the portion between the left and right high-elasticity portions 20NA in a natural state, and preparing samples using a tensile tester (for example, ( It may be determined by performing a tensile test using an autograph type tensile tester AG-1KN1 manufactured by Shimadzu Corporation, and calculating the tensile modulus.
  • the high-elasticity portion 20NA of the front waist portion 20f includes a plurality of scattered sheets when the skin-side sheet 22 and the non-skin-side sheet 21 forming the front waist portion 20f are joined by ultrasonic bonding. It is formed by making the bonding pattern of the bonding portion (not shown) different between the high-elasticity portion 20NA and the low-elasticity portion 20EA, which will be described later. Specifically, for example, by increasing the number of sheet joints in the high-elasticity portion 20NA, the stretchability of the skin-side sheet 22 may be weakened to form the high-elasticity portion 20NA.
  • the highly elastic portion 20NA may be formed by another method.
  • another non-stretchable sheet member such as a non-woven fabric is attached to the portion forming the highly elastic portion 20NA.
  • the high-elasticity portion 20NA having a large elastic modulus may be formed.
  • the front waistline portion 20f is formed of two non-stretchable sheet members such as nonwoven fabric, and a thread is inserted between the two sheet members.
  • a high elastic portion 20NA having a desired elastic modulus may be formed by arranging an elastic member made of rubber that expands and contracts in the horizontal direction and changing the thickness of the thread rubber between the high elastic portion 20NA and the low elastic portion 20EA. good.
  • the wearer When using the napkin 1 as a tape type, the wearer first holds the tab 30 spread outward in the left-right direction with one hand as shown in FIG. A portion corresponding to the overlapping region 20fc that overlaps with the tab 30 is held with the other hand, and a pulling force is applied laterally outward so as to separate them from each other. Since the high-elasticity portion 20NA of the front waistline portion 20f is resistant to deformation (stretching), the front waistline portion 20f is easily broken at the high-elasticity portion 20NA. Since the wearer can easily tear the front waist part 20f at the first stage of the procedure of wearing by himself/herself, the wearability is improved, and the next procedure can be proceeded smoothly. Similarly, when breaking the tab 30 on the opposite side (during the action shown in FIG. 7C), the wearer can easily break the front waist portion 20f at the high elastic portion 20NA and can wear it while sitting. sexuality is also improved.
  • the high-elasticity portion 20NA of the front waist portion 20f in the present embodiment is provided from the upper edge 20fup to the lower edge 20fdw in the vertical direction, but the high-elasticity portion 20NA overlaps the tab 30 in the horizontal direction.
  • the high elastic portion 20NA may be provided in an upper region including the upper edge 20fup or a lower region including the lower edge 20fdw.
  • the upper edge 20fup or the lower edge 20fdw of the front waistline portion 20f is a tear starting point when the front waistline portion 20f is broken as shown in FIGS. 6B and 7C. In particular, as shown in FIG.
  • the napkin 1 is a pants-type absorbent article for adults.
  • the vertical length L1 (FIG. 8) of the waist portion 20f is short.
  • the tabs 30 joined to the side joints 40 are closed inward in the left-right direction and engaged with the non-skin side surfaces of the front waistline portion 20f in a natural state.
  • the minimum value of the vertical length L1 of the front waist portion 20f in the region 20fc where the front waist portion 20f and the tab 30 overlap in the left-right direction is 80 mm or more and 150 mm or less.
  • the measurement is performed with the napkin 1 in the initial state and the natural state.
  • the napkin 1 in the natural state the waist member 20 in the natural state
  • the measurement is performed with the tab 30, which is spread out, engaged with the front waist portion 20f.
  • a region 20fc of the front waist portion 20f that overlaps with the tab 30 is a portion that is likely to be gripped by the wearer when opening the tab 30 and tearing the front waist portion 20f as shown in FIGS. 6B and 7C. Therefore, by setting the vertical length L1 of the region 20fc to 150 mm or less, the wearer can easily tear the front waist portion 20f. On the other hand, if the length L1 of the front waist portion 20f is too short, the area covering the wearer's body will be too small, which may make the wearer uneasy. Such anxiety can be suppressed by making it 80 mm or more.
  • a perforated line 25 having a vertical length of BR> is provided in the high-elasticity portion 20NA of the front waist portion 20f.
  • the perforation line 25 is a line that guides tearing when the wearer breaks the front waist portion 20f. easier to break.
  • the napkin 1 in its natural state is engaged with the non-skin side surface of the front waistline portion 20f in a state where the tabs 30 joined to the side joint portions 40 are closed inward in the left-right direction.
  • the length L2 of the side joint portion 40 in the vertical direction is longer than the length L3 of the cut line 25 .
  • the shorter length of the tear line 25 provides less force per unit length on the side joint 40 when a constant force is applied to perform the tearing action shown in FIGS. 6B and 7C.
  • the force per unit length applied to the perforated line 25 portion is larger. Therefore, when tearing the front waist portion 20f, it becomes easy to tear along the perforation line 25.
  • the engaging portion 32 In the state of being engaged with the skin side surface, the engaging portion 32 is located inside the perforated line 25 in the left-right direction. If the cutout line 25 is located inside the engaging portion 32 in the left-right direction, for example, after performing the tearing action shown in FIG.
  • the length in the left-right direction of the ventral contact portion 20fA of the front waist portion 20f is shortened, and the area where the tab 30 is attached is reduced.
  • the tab 30 is pulled inward in the left-right direction and fixed so as to straddle the perforation line 25 on the ventral contact portion 20fA side, which narrows the usable waist size range. Further, even when the napkin 1 is used without tearing, the front waist portion 20f expands and contracts in the left-right direction in the portion inside the engaging portion 32 in the left-right direction, and such a position is used. If the perforation line 25 is provided, the product (napkin 1) is easily torn at the perforation line 25 when the product (napkin 1) is pulled up during wearing.
  • the engagement portion 32 is positioned inside the perforated line 25 in the left-right direction, so that the size range of the waist circumference can be widened, and when used without tearing, when pulling up Fracture can also be suppressed.
  • tab 30 is positioned to cover at least a portion of tear line 25 .
  • An upper end 25up of the perforation line 25 is located above an upper end 30up of the tab 30.
  • the tab 30 is arranged to cover the entire cut line 25 of the front waist portion 20f, the wearer cannot grasp the position of the cut line 25 until the tab 30 is opened laterally outward.
  • the wearer can easily determine at which position the front waist portion 20f should be torn, and the wearability can be improved.
  • the lower end of the perforation line 25 is covered with the tab 30 and is difficult to see, but the lower end of the perforation line 25 may be positioned below the lower end of the tab 30 . By doing so, it is likewise easier for the wearer to determine where to tear.
  • the high-elasticity portion 20NA extends from the side edge 20fe of the front waist portion 20f to the inner side of the cutoff line 25 in the left-right direction. It preferably has a length of 10 mm or more (length W20 in FIG. 9) toward the inner side of the .
  • the portion of the high elastic portion 20NA that is arranged inside the cut line 25 is used by the wearer when the tab 30 is pulled from the front waist portion 20f (abdominal contact portion).
  • 20fA) is a part that becomes a knob when engaging with the non-skin surface side.
  • the high-elasticity portion 20NA is difficult to deform, the high-elasticity portion 20NA that serves as the knob is less likely to curl up, making it easier for the wearer to pick it up.
  • the length W20 is 10 mm or more, it is close to the width of the thumb of the wearer or equal to or greater than the width of the thumb of the wearer, making it easier to pick up.
  • the length W30 from the inner end 32e of the engaging portion 32 to the inner end 30e of the tab 30 in the left-right direction is preferably 5 mm or more and 50 mm or less.
  • the length W30 is set to 50 mm or less, the distance from the position where the tab 30 is pinched to the perforation line 25 does not become too long, and the operability when tearing the front waist portion 20f along the perforation line 25 is lowered. can be prevented.
  • the maximum length W5 of the tabs 30 in the left-right direction is preferably 20 mm or more and 120 mm or less.
  • the wearer can easily hold the tab 30 when engaging the tab 30 with the front waist portion 20f.
  • the length W6 of the tab 30 in the lateral direction is set to 120 mm or less, it is possible to suppress the contact of the tab 30 opened to the outside with the toilet bowl when the napkin 1 is wrapped around the thigh.
  • the wearer can engage the engaging portion 32 with the front waist portion 20f after opening the tab 30 and tearing the front waist portion 20f. There is no need to switch the tab 30 to a position closer to the engaging portion 32 to make it easier.
  • the base sheet 31 constituting the tab 30 of the present embodiment is made of nonwoven fabric or the like, and substantially does not include elements that allow the tab 30 itself to expand and contract. Comparing the tab 30 with the front waistline portion 20f, the tab 30 has a larger modulus of elasticity than the high-elasticity portion 20NA of the front waistline portion 20f. That is, the tab 30 is more difficult to deform (stretch) than the highly elastic portion 20NA. Therefore, when the tab 30 and the front waistline portion 20f are held and broken along the perforation line 25 as shown in FIGS. 6B and 7C, the force of pulling the tab 30 is easily transmitted to the high elastic portion 20NA of the front waistline portion 20f. .
  • the length L6 to CL is preferably 200 mm or more and 350 mm or less.
  • the length L6 to 200 mm or more it is possible to match the size of the napkin 1 to an adult wearer.
  • the length L6 to 350 mm or less when the napkin 1 is wrapped around the thigh, it is difficult for the napkin 1 to hang down, and the contact of the napkin 1 to the toilet bowl can be suppressed.
  • the front waist portion 20f includes, in a plan view, a high elastic portion 20NA, a high elastic portion 20NA, and a high elastic portion 20NA in at least a portion of each of the overlapping regions 20fc on both sides in the left and right direction overlapping the pair of tabs 30 in plan view. It has 20 NA.
  • a low-elasticity portion 20EA having a smaller elastic modulus than the high-elasticity portion 20NA is continuously provided between the high-elasticity portions 20NA, 20NA on both sides in the left-right direction of the front waist portion 20f.
  • the low-elasticity portion 20EA is a portion that expands and contracts in the left-right direction by the skin-side sheet 22 and the waist elastic member 24, as shown in FIG.
  • the napkin 1 fits the waist of the wearer.
  • the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b, but the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b.
  • the portion 20fA is pulled outward on both sides in the left-right direction, making it easier to fit around the waist of the wearer.
  • the high-elasticity portions 20NA, 20NA are provided outside the engaging portion 32 in the left-right direction.
  • the highly elastic portions 20NA, 20NA are present closer to the skin than the tab 30 is.
  • the high-elasticity portion 20NA is hard to deform, the left-right direction end portions of the front waist portion 20f are less likely to curl up, and since such a high-elasticity portion 20NA is a portion that comes into contact with the skin when worn, it reduces discomfort of the wearer. can also
  • the low elastic portion 20EA preferably has a portion that overlaps at least a portion of the engaging portion 32.
  • the engaging portion 32 is more likely to engage with the easily deformable (easily stretchable) low-elasticity portion 20EA than with the hard-to-deform high-elasticity portion 20NA.
  • the projections of the engaging portion 32 for catching on the fibers are more likely to catch on the wrinkled part due to contraction than on the part that is nearly taut. Therefore, when engaging the engaging portion 32 , having a portion that overlaps with the low elastic portion EA makes it easier for the wearer to engage the engaging portion 32 .
  • FIG. 10 is a front view of the napkin 1 with the tab 30 engaged after being separated along the tear line 25, viewed from the front side.
  • the napkin 1 shown in FIG. 10 after separating the ventral contact portion 20fA of the front waistline portion 20f from the back waistline portion 20b along the cutting line 25, the separated ventral contact portion 20fA is spread in a natural state.
  • the tab 30 is engaged with the non-skin side of the front waist portion 20f. As shown in the figure, when the tab 30 is engaged, the tab 30 has a projecting portion 30T projecting downward in the vertical direction from the lower edge 20fdw of the front waistline portion 20f.
  • stretchable sheets such as stretchable nonwoven fabric are used as the skin-side sheets 22 and 23 constituting the waist member 20, thereby imparting stretchability to the waist member 20 in the left-right direction.
  • 20 may be provided with other elastic members.
  • waist elastic members 24 such as rubber threads may be provided at the upper ends of the front waist portion 20f and the rear waist portion 20b so as to be able to expand and contract along the left-right direction.
  • the tabs 30 are provided on both sides in the left-right direction of the waist member 20, but may be provided on only one side.
  • the front waist portion 20f can be easily torn along the left-right direction inner end of the side joint portion 40 having a large difference in rigidity. It may be a configuration.
  • the underpants-type napkin can be unfolded only on one side when used.
  • the left-right direction inner end of the side joint portion 40 functions as the perforation line 25 of the present embodiment, the perforation or the like does not necessarily have to be provided.
  • a pants-type (shorts-type) napkin 1 (hereinafter also referred to as a napkin 1) will be described.
  • the pants-type absorbent article also includes pants-type diapers, pants-type absorbent pads, and the like.
  • FIG. 1 is a schematic perspective view of the napkin 1.
  • FIG. 11 is a schematic plan view of the napkin 1 in an unfolded and stretched state, viewed from the skin side in the thickness direction.
  • FIG. 12 is a schematic cross-sectional view taken along the line AA of FIG. 11.
  • the napkin 1 has “vertical direction (or vertical direction)”, “horizontal direction (or width direction)” and “front-back direction” that intersect (perpendicularly) each other. Moreover, as shown in FIG. 12, it has a "thickness direction” which is the direction in which each member is laminated.
  • the waist side of the wearer is defined as the “upper side”
  • the crotch side of the wearer is defined as the “lower side”.
  • the side facing the wearer's abdomen when worn is defined as the "front side”
  • the side facing the wearer's back is defined as the “rear side”.
  • the side that comes into contact with the wearer's skin when the napkin 1 is worn by the wearer is defined as the "skin side”
  • the opposite side is defined as the "non-skin side”.
  • the napkin 1 of this embodiment includes an absorbent body 10 that absorbs excretory fluid such as menstrual blood, and an absorbent body 10 that overlaps the absorbent body 10 in the front-rear direction (in this embodiment, it is placed on the non-skin side of the absorbent body 10). ), a waist member 20 including a front waist portion 20f and a rear waist portion 20b, and a pair of tabs 30 provided on both sides of the waist member 20 in the left-right direction (width direction).
  • the unfolded state of the napkin 1 shown in FIG. 11 means that the pair of side joints 40 provided on both sides of the napkin 1 in the left-right direction (width direction) are separated, and the napkin 1 is opened and unfolded in a plane. state.
  • the napkin 1 is folded in half in the longitudinal direction at the central position CL (half-folded portion F) in the vertical direction (longitudinal direction) from the unfolded state shown in FIG.
  • Both sides in the left-right direction (width direction) are joined at a pair of side joints 40 (joints) to form a pants type.
  • a bonding method for the site bonding portion 40 a well-known bonding method such as heat welding or ultrasonic welding can be used.
  • a front waist portion 20f and a rear waist portion 20b are connected in an annular fashion to form one waist opening 1a and a pair of leg openings 1b.
  • the stretched state of the napkin 1 is a state in which the elastic members of the napkin 1 are stretched to such an extent that the wrinkles of the napkin 1 are no longer visible.
  • the dimensions of each member constituting the napkin 1 are the dimensions of the member itself (that is, the dimension of the elastic member in a state in which the elastic characteristics are not expressed), and are stretched until they are the same or close to the dimensions. be.
  • the tab 30 when measuring and comparing the length of the main body of the napkin 1, the tab 30 is disengaged (or the tab 30 is separated (peeled off)) and the cut line It is preferable to measure and compare in a state before the girth member 20 is broken at 26 .
  • the length of the tab 30 (engagement member) may be measured with the tab 30 engaged with the waist member 20 or with the engagement released. may be separated from the waist member 20.
  • this measurement and comparison method is just an example, and other methods may be used.
  • the absorbent main body 10 is a member having a rectangular shape in plan view, the longitudinal direction of which extends along the vertical direction (longitudinal direction) of the napkin 1 .
  • the absorbent main body 10 includes an absorbent core 11, a top sheet 12 arranged on the skin side of the absorbent core 11, and a non-skin side of the absorbent core 11. and a back sheet 13 .
  • the absorbent main body 10 may be provided with sheet members other than this.
  • a second sheet (not shown) may be provided between the top sheet 12 and the absorbent core 11 in the thickness direction.
  • the absorbent core 11 is a member that absorbs and retains liquid such as menstrual blood, and is formed of, for example, liquid-absorbent fibers such as pulp fibers mixed with superabsorbent polymer (SAP).
  • SAP superabsorbent polymer
  • the outer peripheral surface of the absorbent core 11 may be covered with a liquid-permeable sheet member (core wrap sheet) such as tissue paper or nonwoven fabric.
  • the top sheet 12 is a liquid-permeable sheet member that can come into contact with the wearer's skin when worn, and is made of, for example, a hydrophilic air-through nonwoven fabric or spunbond nonwoven fabric.
  • the back sheet 13 is arranged on the non-skin side of the liquid-impermeable sheet 13a for suppressing leakage of liquid such as menstrual blood absorbed by the absorbent core 11 to the outside, and the liquid-impermeable sheet 13a. and a hydrophobic sheet 13b.
  • a resin film or the like is used as the liquid-impermeable sheet 13a
  • a flexible non-woven fabric or the like is used as the hydrophobic sheet 13b.
  • the hydrophobic sheet 13b may not necessarily be provided, and the back sheet 13 may be composed only of the liquid-impermeable sheet 13a.
  • the absorbent main body 10 has leak-proof walls 14 that can stand up on the skin side on both sides in the left-right direction (width direction).
  • both sides of the hydrophobic sheet 13b in the left-right direction (width direction) are folded inward in the left-right direction (width direction) so as to be positioned on the skin side surface of the top sheet 12, and the folded portions are longitudinally folded.
  • the leak-proof wall portion 14 is formed by providing the leak-proof wall elastic member 141 (for example, rubber thread) that expands and contracts in the direction.
  • the leak-proof wall portion 14 can suppress lateral leakage of the excreted liquid.
  • the absorbent main body 10 may not be provided with the leak-proof wall portion 14 .
  • the absorbent main body 10 is provided with a plurality of absorbent elastic members 15 that expand and contract along its longitudinal direction.
  • the absorbent elastic member 15 is made of thread rubber, for example, and is positioned closer to the non-skin side than the liquid-impermeable sheet 13a located on the non-skin side of the absorbent core 11 (in FIG. 12, the liquid-impermeable sheet 13a and the hydrophobic and the sheet 13b) in a state of being stretched in the longitudinal direction.
  • five absorbent body elastic members 15 are provided at predetermined intervals in the horizontal direction (see FIG. 11).
  • the expansion ratio of the absorbent elastic member 15 is preferably about 1.4 to 3.3 times.
  • the extension ratio is expressed by a value obtained by dividing the length of the elastic member in the stretched state by the length of the elastic member in the natural state. It is preferable to set the extension ratio of the absorbent body elastic member 15 to a relatively large ratio. By doing so, as shown in FIG. 17 to be described later, the absorbent main body 10 is lifted toward the wearer's skin side, and the absorbent main body 10 is easily brought into close contact with the wearer's crotch (vaginal opening), and excretions are removed. leakage can be suppressed.
  • the waist member 20 is an outer body composed of a plurality of sheet members, and includes at least a non-skin-side sheet 21 and skin-side sheets 22 and 23 (see FIG. 12).
  • the vertical direction (vertical direction) position of the front waist member 20 is the side A portion that overlaps with the joint portion 40 is called a "front waist portion 20f", and a portion below it (on the crotch side) is called a "front side extending portion 20fe".
  • a portion that overlaps the side joint portion 40 in the vertical direction (longitudinal direction) is called a “rear waist portion 20b”.
  • the part is called "rear side extension part 20be”.
  • the non-skin-side sheet 21 is a non-stretchable sheet member arranged on the most non-skin side of the napkin 1, and is formed of, for example, spunbond nonwoven fabric or SMS nonwoven fabric. As shown in FIG. 11, the non-skin-side sheet 21 of the present embodiment has a shape constricted inward in the left-right direction (width direction) at the central portion in the longitudinal direction.
  • the skin-side sheets 22 and 23 are stretchable sheet members laminated on the skin side of the non-skin-side sheet 21 on the front and rear sides of the waist member 20 .
  • the skin-side sheets 22 and 23 have elasticity at least in the lateral direction (width direction) of the napkin 1 .
  • Stretchable sheet members include stretchable nonwoven fabrics and stretchable films, and the skin-side sheets 22 and 23 of this embodiment are made of stretchable nonwoven fabrics.
  • a stretchable nonwoven fabric is a stretchable nonwoven fabric that contains stretchable fibers and stretchable fibers that are less shrinkable than stretchable fibers, and that has undergone appropriate stretching such as gear stretching.
  • As the stretchable fiber it is possible to use a polyurethane elastomer fiber, which is a type of thermoplastic elastomer having elasticity. It is possible to use fibers of polypropylene (PP).
  • the non-skin-side sheet 21 and the skin-side sheets 22 and 23 are intermittently joined by scattered joints (joints by thermal welding, ultrasonic welding, or the like), not shown. Therefore, the parts of the waist member 20 on which the skin-side sheets 22 and 23 are arranged are imparted with stretchability along the left-right direction (width direction). Further, when the waist member 20 contracts, the non-skin side sheet 21 bends (has a convex shape) between the joints, and the feel of the waist member 20 is improved, giving a visually soft impression.
  • sheet members other than the non-skin-side sheet 21 and the skin-side sheets 22 and 23 may be provided as sheet members constituting the waist member 20 .
  • the waist member 20 may have a three-layer structure in which a non-stretchable non-woven fabric is arranged on the skin side of the stretchable skin-side sheets 22 and 23, and the stretchable non-woven fabric is sandwiched between the non-stretchable non-stretchable non-woven fabrics. good.
  • the non-skin side sheet 21 may be separated into the front side and the back side.
  • the non-skin side of the back sheet 13 may be exposed between the front non-skin side sheet 21 and the rear non-skin side sheet 21, or the front non-skin side sheet 21 and the rear non-skin side sheet 21 may be exposed.
  • a separate non-skin-side sheet connecting the non-skin-side sheet 21 may be provided at the crotch portion.
  • the napkin 1 has a pair of tabs 30 (engagement members) detachably engaged with the non-skin side surfaces of the front waist portion 20f on both sides of the waist member 20 in the left-right direction (width direction).
  • FIG. 11 virtually shows the tab 30 engaged with the non-skin side surface of the front waist portion 20f in the napkin 1 viewed from the skin side.
  • the tab 30 has a base sheet 31 and an engaging portion 32 .
  • the base sheet 31 is a sheet member made of nonwoven fabric or the like. Outer ends of the base sheet 31 in the left-right direction (width direction) are joined to the waist member 20 by side joints 40 .
  • the front waistline portion 20f, the rear waistline portion 20b, and the tab 30 are integrally joined by the side joint portion 40.
  • the tab 30 may be joined to the waist member 20 at a location different from the side joints 40 .
  • the engaging portion 32 is provided at an end portion of the base sheet 31 opposite to the side joined by the side joint portion 40 in the left-right direction (width direction).
  • the engaging portion 32 is provided on the skin side of the base sheet 31, faces the non-skin side of the front waist portion 20f, and is a member that removably engages the non-skin side of the front waist portion 20f.
  • a male member of a hook-and-loop fastener provided with projections (hook members) that are caught by the fibers forming the non-skin side sheet 21 can be exemplified.
  • the non-skin side surface of the non-skin side sheet 21 may be provided with a member (for example, a female member of a hook-and-loop fastener) with which the engaging portion 32 is easily engaged.
  • FIG. 13A and 13B are schematic cross-sectional views of the napkin 1 viewed from the side of the waist opening 1a.
  • FIG. 13A is a diagram of a napkin 1 used in a pants type
  • FIG. 13B is a diagram of a napkin 1 used in a tape type.
  • 14 is a developed plan view of the napkin 1 with the front waistline portion 20f separated from the rear waistline portion 20b along the tear line 26.
  • the napkin 1 When the napkin 1 is taken out from the package, in the initial state, it is a pants type (Fig. 13A) in which the front waistline portion 20f and the rear waistline portion 20b are connected in a loop. Therefore, the wearer can put on and take off the napkin 1 while it is in the form of pants.
  • Fig. 13A pants type in which the front waistline portion 20f and the rear waistline portion 20b are connected in a loop. Therefore, the wearer can put on and take off the napkin 1 while it is in the form of pants.
  • the front waist portion 20f of the napkin 1 has perforations 26 having a length in the vertical direction (longitudinal direction) at both ends in the left-right direction (width direction). Therefore, the front waistline portion 20f can be broken in the vertical direction (longitudinal direction) along the perforation line 26 to separate a portion of the front waistline portion 20f from the rear waistline portion 20b.
  • the napkin 1 after separation has a tape shape in which a pair of tabs 30 extend outward in the lateral direction (width direction) from the rear waist portion 20b. Therefore, the wearer can put on and take off the napkin 1 in the form of a tape.
  • the portion of the front waistline portion 20f separated from the rear waistline portion 20b on at least one side in the left-right direction (width direction) is also referred to as the "abdominal contact portion 20fA”.
  • a portion of the front waistline portion 20f that remains on the side joint portion 40 side without being separated from the rear waistline portion 20b is also referred to as a "non-separated portion 20fB".
  • FIG. 15A to 15C and 16A to 16D are diagrams explaining an example of how the wearer wears the napkin 1.
  • FIG. A person who wears the napkin 1 generally puts on and takes off the napkin 1 by himself/herself. Also, the wearer attaches and detaches the napkin 1 while sitting on a toilet or the like (not shown) as shown in FIG.
  • FIG. 15A the wearer opens the tab 30 on one side in the left-right direction (width direction) of the pants-type napkin 1 to the outside (one side) in the left-right direction (width direction), expose the Next, as shown in FIG. 15B, the wearer tears one end of the front waistline portion 20f in the left-right direction (width direction) along the perforation line 26 in the vertical direction (vertical direction) to cut the front waistline portion.
  • a ventral contact portion 20fA which is a part of 20f, is separated from the rear waist portion 20b.
  • FIG. 16A is a diagram showing the inside of the thigh around which the napkin 1 is wrapped as in FIG. 16A.
  • the side joints 40 are positioned on the thighs, and the absorbent main body 10 (absorbent core 11) hangs down between the thighs. Therefore, the wearer rotates the napkin 1 along the circumferential direction of the thigh. Then, as shown in FIG. 16C, the side joints 40 are aligned with one's armpits and the absorbent body 10 is pulled up between the thighs.
  • the wearer opens the tab 30 on the opposite side to the outside in the left-right direction (width direction) to separate the front waistline portion 20f from the rear waistline portion 20b on the other side as well.
  • the wearer corrects the inclination of the absorbent main body 10, which is inclined toward the thigh side around which the napkin 1 is wrapped, so as to follow the direction in which the thigh extends. direction center).
  • the cut-off portion of the waist member 20 is pulled to the front side of the thigh, the waist member 20 is wrapped around the opposite thigh, and the front waist member 20f is placed on the thigh.
  • a tab 30 is engaged on the skin side.
  • the ventral contact portion 20fA of the front waistline portion 20f separated by the perforation line 26 is again annularly connected to the rear waistline portion 20b by the pair of tabs 30.
  • both thighs of the wearer pass through the pair of leg openings 1 b of the napkin 1 .
  • the wearer pulls up the napkin 1 to complete wearing of the napkin 1 .
  • the napkin 1 of this embodiment has the tab 30 that removably engages the non-skin side of the front waist portion 20f. Therefore, when the wearer uses the napkin 1 in a tape shape, the wearer can engage the tab 30 with the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer. Therefore, the wearability is good when the wearer wears the napkin 1 by himself/herself. Also, when removing the napkin 1, the wearer can remove the tab 30 from the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer.
  • the tab 30 is provided on the non-skin side (outside) of the waist member 20, and the engaging portion 32 provided on the skin side surface of the tab 30 is attached to the non-skin side of the front waist portion 20f. Engage the sides.
  • the tab 30 is provided on the skin side (inner side) of the waist member 20, and after the waist member 20 is separated, the engaging portion 32 provided on the non-skin side of the tab 30 is attached to the front. It may be in a form that engages with the skin side surface of the waist portion 20f.
  • the napkin 1 when the napkin 1 is attached while still in the pants shape, it is possible to take off the napkin 1 in the pants shape, but it is also possible to remove the napkin 1 by tearing the front waist portion 20f along the cutting line 26. be. Conversely, when the napkin 1 is attached in a tape-type state, the napkin 1 can be taken off without removing the tab 30 .
  • FIG. 17 is a front view of the underpants-type napkin 1 viewed from the front side.
  • FIG. 17 is a front view of the napkin 1 in which the front waistline portion 20f is separated from the rear waistline portion 20b on one side in the left-right direction.
  • the tab 30 on the separated side is positioned between the front waistline portion 20f and the rear waistline portion 20b in a state of being closed inward in the left-right direction.
  • FIG. 19 is a diagram showing a portion of the rear waistline portion 20b with the front waistline portion 20f separated at one side (cut line 26) in the left-right direction and the tab 30 opened outward.
  • FIG. 20 is a front view of the napkin 1 in which the front waistline portion 20f is separated from the rear waistline portion 20b on both sides in the left-right direction.
  • the napkin 1 is a pants-type absorbent article for adults (including elementary and junior high school students who have reached menarche), and the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 in the vertical direction are is relatively short.
  • the length of the front waist portion 20f in the vertical direction is shorter than that of a pants-type disposable diaper that is worn by a cared person to whom a caregiver wears the pants-type absorbent article.
  • the tabs 30 joined to the side joints 40 are closed inward in the left-right direction and are engaged with the non-skin side surfaces of the front waistline portion 20f in a natural state.
  • the lengths L1 and L2 in the vertical direction of the front waist portion 20f and the side joint portions 40 are set as follows. First, the minimum length L1 in the vertical direction of the portion 20fC of the front waist portion 20f that overlaps the tab 30 in the horizontal direction is set to 80 mm or more and 150 mm or less. Moreover, the vertical length L2 of the side joint portion 40 to which the tab 30 is joined is set to 100 mm or more and 160 mm or less.
  • the measurement is performed with the napkin 1 in the initial state and the natural state.
  • the napkin 1 in the natural state the waist member 20 in the natural state
  • the measurement is performed with the tab 30, which is spread out, engaged with the front waist portion 20f.
  • a portion 20fC of the front waist portion 20f that overlaps with the tab 30 is a portion that is likely to be gripped by the wearer who has opened the tab 30 to tear the front waist portion 20f, as shown in FIG. 15C. Therefore, by making the vertical length L1 of the portion 20fC relatively short, the wearer can easily grasp the portion 20fC and pull the front waist portion 20f in front of the thigh.
  • FIG. 16D when the front waist portion 20f on the thigh is pressed from above by the hand, the front waist portion 20f can be pressed over a wide range in the vertical direction, and the position of the front waist portion 20f can be adjusted. can engage the tab 30 in a stable state.
  • the average length from the base of the thumb and index finger to the tip of the index finger is 100.6 mm for women and 100.6 mm for men. 109.7 mm for both sexes (male and female) and 107 mm for both sexes. Therefore, by setting the dimension L1 of the front waist portion 20f to 150 mm or less, the wearer can hold or hold the front waist portion 20f for more than half the length in the vertical direction. Therefore, the tab 30 can be stably engaged, and the wearability of the napkin 1 is improved.
  • the waist member 20 is a member that expands and contracts in the left-right direction and fits the wearer's waist. Therefore, it is preferable that the above-described dimension L1 of the front waist portion 20f is set to 80 mm or more and not too short. By doing so, the napkin 1 can be prevented from slipping down, and the wearer can use the napkin 1 with peace of mind.
  • the vertical length L2 of the side joints 40 is preferably slightly longer than the vertical length L1 of the front waist portion 20f, and is in the range of 100 mm or more and 160 mm or less.
  • the vertically long side joint 40 allows the rear portion of the napkin 1 to move vertically. Pulling force can be easily transmitted over a wide range. Therefore, it becomes easier to pull up the rear part of the napkin 1 from under the thigh.
  • the lengths L1 and L2 in the vertical direction of the front waist portion 20f and the side joint portions 40 may be equal.
  • the wearability of the napkin 1 is improved when the wearer wears the napkin 1 by himself/herself.
  • the absorbent core 11 is small, and the absorbent core 11 after excretion is also light. Therefore, even if the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 are shortened, the pants-type absorbent article is less likely to slide down.
  • the napkin 1 is less likely to come into contact with the toilet and can be used hygienically. Moreover, since the napkin 1 has a shape similar to underwear, the appearance of the napkin 1 is also improved.
  • the napkin 1 extends along the inner edge 40a (see FIG. 17) of the side joint portion 40 on one side in the left-right direction. is separated from the rear waist portion 20b and is in a natural state, the following is preferable.
  • the length W1 from one end P1 of the abdominal contact portion 20fA in the left-right direction to the inner end 40a of the side joint portion 40 on the other side is equal to the length W1 from one end P2 of the rear waist portion 20b in the left-right direction. It is preferably longer than the length W2 to the inner end 40a of the side joint portion 40 on the other side. That is, it is preferable that one lateral end P1 of the ventral contact portion 20fA is located on one lateral side (outer side) than one lateral end P2 of the rear waist portion 20b.
  • the wearer can easily pull the ventral contact portion 20fA to the front side of the thigh when wrapping the waist member 20 around the thigh. Therefore, the wearer can stably engage the tab 30 with the ventral contact portion 20fA on the thigh, and the wearability of the napkin 1 is improved.
  • the napkin 1 (absorbent main body 10) does not easily hang down when the napkin 1 is wrapped around the thigh, and the contact of the napkin 1 with the toilet bowl can be suppressed. .
  • the ventral contact portion 20fA which is a part of the front waistline portion 20f, is separated from the back waistline portion 20b along the cutout line 26, and the napkin 1
  • the front waist portion 20 f on one side in the left and right direction from the cut line 26 is separated (not visible).
  • the length W3 from one end P3 of the ventral contact portion 20fA in the left-right direction to the inner end 40a of the side joint portion 40 on the other side is the length of one side of the rear waist portion 20b in the left-right direction. It is preferably longer than the length W2 from the end P2 to the inner end 40a of the side joint portion 40 on the other side.
  • the length W3 of the ventral contact portion 20fA in the left-right direction is increased, and the wearer can pull the waist member 20 to the thigh.
  • the ventral contact portion 20fA can be easily pulled toward the front side of the thigh.
  • the length W2 of the rear waist portion 20b in the left-right direction is shortened, and when the napkin 1 is wrapped around the thigh, the napkin 1 does not easily hang down, and the contact of the napkin 1 with the toilet bowl can be suppressed.
  • the front waistline portion 20f and the rear waistline portion 20b have the same length in the left-right direction in the unfolded and stretched state.
  • the lateral length of the waistline elastic member 24 is shorter than in the rear waistline portion 20b.
  • the front waist portion 20f is provided with low-elasticity regions 20NA (details will be described later) having lower elasticity than the central elastic region 20EA in the left-right direction at both ends in the left-right direction. Therefore, compared with the rear waist portion 20b, the front waist portion 20f is weaker in lateral contraction force, and the lengths W1 and W3 (shrinkage dimensions) in the natural state are shorter.
  • ventral contact portion 20fA of the front waistline portion 20f is separated from the rear waistline portion 20b along the cutting line 26 on one side in the left-right direction, and as shown in FIG. It is preferable that the specific length of the napkin 1 in the state of being spread outward (one side) in the direction and in the natural state is as follows.
  • the maximum length W6 of the tabs 30 in the left-right direction is preferably 20 mm or more and 120 mm or less.
  • the wearer can easily hold the tab 30 when engaging the tab 30 with the front waist portion 20f.
  • the length W6 of the tab 30 in the lateral direction is set to 120 mm or less, it is possible to suppress the contact of the tab 30 opened to the outside with the toilet bowl when the napkin 1 is wrapped around the thigh.
  • the wearer can engage the engaging portion 32 with the front waist portion 20f after opening the tab 30 and tearing the front waist portion 20f. There is no need to switch the tab 30 to a position closer to the engaging portion 32 so as to make it easier.
  • the napkin 1 in its natural state is engaged with the non-skin side surface of the front waistline portion 20f in a state in which the tabs 30 joined to the side joint portions 40 are closed inward in the left-right direction.
  • the vertical length L3 of the tab 30 at the position of the inner end 40a of the side joint portion 40 on the side where the tab 30 is provided is the same as the front waistline portion at the position of the inner end 40a of the same side joint portion 40. It is preferably longer than the vertical length L1 of 20f. By doing so, the vertical length of the front waist portion 20f can be shortened so that the wearer can easily grip it.
  • the tab 30 that is long in the vertical direction transmits the lifting force over a wide range in the vertical direction at the rear part of the napkin 1, making it easier to pull up. .
  • the minimum vertical length L4 of the portion of the front waistline portion 20f that overlaps the engaging portion 32 in the left-right direction is preferably longer than the maximum vertical length L5 of the engaging portion 32. . By doing so, the entire vertical region of the engaging portion 32 can be engaged with the front waistline portion 20f, and the tab 30 can be firmly engaged with the front waistline portion 20f.
  • the front waist portion 20f preferably has cut lines 26 (for example, perforations) having length in the vertical direction at the ends in the left-right direction. By doing so, the wearer can easily tear the front waist portion 20f.
  • the perforation line 26 in this embodiment is provided over the entire front waistline portion 20f in the vertical direction, the perforation line 26 may be provided only in a part of the front waistline portion 20f in the vertical direction.
  • the perforation line 26 is not limited to a straight line along the vertical direction as shown in the stretched napkin 1 (FIG. 11), but may be a straight line or curved line inclined with respect to the vertical direction.
  • the perforation line 26 may be any line that easily breaks the front waistline portion 20f in the vertical direction, and may be a notch portion or the like provided at the upper end portion or the lower end portion of the front waistline portion 20f.
  • the napkin 1 may not have the perforation line 26.
  • the side joints 40 are formed by welding or the like, and have higher rigidity than other regions of the waist member 20 . Therefore, the wearer can break the front waist portion 20 f along the lateral inner ends 40 a of the side joints 40 .
  • a pair of tabs 30 are provided on both sides of the waist member 20 in the left-right direction.
  • the napkin 1 can be worn by wrapping the waist member 20 around both thighs.
  • the pair of tabs 30 are removed from the front waist portion 20f, and the napkin 1 can be pulled out from between the thighs. Therefore, unlike the case of putting on and taking off the napkin 1 in the form of pants, it is not necessary to pass the toe through the opening 1b around the leg of the napkin 1 to put on and take off. Therefore, the wearer can put on and take off the napkin 1 without taking off pants, shoes, stockings, etc., and can easily replace the napkin 1 on the go.
  • both ends P1 and P5 in the left and right direction of the ventral contact portion 20fA are preferably positioned outside in the left and right direction relative to both ends P2 and P6 in the left and right direction of the rear waist portion 20b.
  • the tabs 30 each having one engaging portion 32 are provided on both sides of the napkin 1 in the left-right direction.
  • the wearer only has to engage the tabs 30 (engaging portions 32) once on both sides in the left-right direction, which facilitates wearing and improves wearability.
  • the appearance of the napkin 1 is also improved.
  • the absorbent core 11 is smaller than that for nursing care, and the absorbent core 11 after excretion is small. 11 is also light.
  • a tab with two engaging portions arranged in the vertical direction is provided like a pants-type absorbent article for nursing care, or a tab having one engaging portion is provided in the vertical direction. Even if two tabs are arranged side by side and two tabs (two pairs) are provided on both sides in the left and right direction, and the tabs are not firmly fixed to the front waist part 20f, the napkin 1 is less likely to slip off.
  • the present invention is not limited to the form in which one tab 30 having one engaging portion 32 is provided on each side in the left-right direction.
  • the napkin 1 may have a tab 30 provided only on one side of the waist member 20 in the left-right direction.
  • the napkin 1 of the present embodiment may be a pants-type absorbent article that can be used as a tape type on at least one side in the left-right direction. Even in that case, the wearer passes only the toe of one leg through the leg opening 1b and wraps the waist member 20 around the thigh of the other leg, or removes the waist member 20 from one thigh and wears the other leg. Only the toe of the leg can be pulled out from the leg opening 1b, and the napkin 1 can be easily attached and detached.
  • the wearability is improved when the waist member 20 is wrapped around one thigh of the wearer.
  • one end of the napkin 1 in the vertical direction (the direction perpendicular to the left-right direction and along the longitudinal direction of the absorbent body 10) to the center CL is preferably 200 mm or more and 350 mm or less.
  • the length L6 By setting the length L6 to 200 mm or more, it is possible to match the size of the napkin 1 to an adult wearer.
  • the length L6 by setting the length L6 to 350 mm or less, when the napkin 1 is wrapped around the thigh, it is difficult for the napkin 1 to hang down, and the contact of the napkin 1 to the toilet bowl can be suppressed.
  • the lower end (P1) of the ventral contact portion 20fA is preferably located on one side (outer side) in the left-right direction than the upper end (P4).
  • the cut ends (P1 to P4) of the ventral contact portion 20fA are slanted outward in the lateral direction from the waist side to the crotch side. Therefore, in order for the wearer to wear the napkin 1 by himself/herself, as shown in FIG. match the direction. Therefore, it becomes easier for the wearer to hold the ventral contact portion 20fA, and wearability is improved.
  • a waist elastic member 24 is provided in addition to the stretchable skin-side sheet 22 at the upper end of the ventral contact portion 20fA. Therefore, the upper end portion of the abdominal contact portion 20fA has a higher contractile force than the lower end portion, and is located inside in the left-right direction when the napkin 1 is in its natural state.
  • front waist portion 20f and the rear waist portion 20b have skin-side sheets 22 and 23 that stretch in the left-right direction, and waist elastic members 24, respectively, and have stretchability in the left-right direction.
  • the front waistline portion 20f and the rear waistline portion 20b have a stretchable region 20EA that stretches in the horizontal direction continuously in at least the region where the position in the horizontal direction overlaps with the absorbent main body 20. is preferred.
  • napkin 1 fits around the wearer's waist.
  • the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b, but the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b.
  • the portion 20fA is pulled outward on both sides in the left-right direction to fit the waist of the wearer.
  • the abdominal contact portion 20fA is easily pulled toward the front of the thigh, and the front portion of the napkin 1 is less likely to hang down.
  • the rear waist portion 20b can also fit around the wearer's waist, and when the wearer wraps the waist member 20 around the thigh, the rear portion of the napkin 1 is less likely to hang down.
  • the elastic force may be reduced to ensure the flatness of the absorbent core 11.
  • the area ratio of the joints (welded portions) between the non-skin-side sheet 21 and the skin-side sheets 22 and 23 is increased compared to the other regions, thereby It is preferable to suppress the elastic properties of the side sheets 22 and 23 . By doing so, it is possible to secure the absorbent area of the absorbent core 11 and prevent the occurrence of a gap between the absorbent core 11 and the wearer.
  • the front waist portion 20f preferably has a low stretchable region 20NA having a lower stretchability than the stretchable region 20EA outside the stretchable region 20EA in the left-right direction (on the side where the tab 30 is provided).
  • the low-stretch region 20NA when the wearer pulls the front waist part 20f in the left-right direction to break it, the force is efficiently transmitted to the breaking part, and the front waist part 20f can be broken with a small force.
  • the perforation line 26 is arranged between both side ends of the low stretchable region 20NA in the left-right direction. By doing so, the wearer can easily tear the front waist portion 20f along the perforation line 26, since both outer sides of the perforation line 26 are difficult to stretch.
  • the cut ends of the front waistline portion 20f are secured in shape retention and are less likely to curl up. That is, since the end of the ventral contact portion 20fA, which is the side to be separated, is less likely to curl, the wearer can easily grip the ventral contact portion 20fA, and the tab 30 can be stably attached to the ventral contact portion 20fA. can engage. In addition, since the end of the abdomen-side contact portion 20fA and the non-separated portion 20fB remaining on the side joint portion 40 side are less likely to curl up, the cut end of the front waist portion 20f can be prevented from becoming foreign matter while the wearer is wearing the napkin 1. It is difficult to feel as it is, and it is more comfortable to wear.
  • the low stretchable region 20NA only needs to have lower stretchability in the horizontal direction than the stretchable region 20EA, and may or may not have stretchability.
  • stretchable skin-side sheets 22 and 23 are also arranged in the low-stretch region 20NA. Therefore, in the low-stretch region 20NA, compared to the stretch region 20EA, the area ratio of the joints (welded portions) between the non-skin-side sheet 21 and the skin-side sheets 22, 23 is increased, and the elastic properties of the skin-side sheets 22, 23 are improved. should be suppressed.
  • the stretchable portion of the waist elastic member 24 does not extend outward in the left-right direction to the low stretchable region 20NA, which also reduces the stretchability of the low stretchable region 20NA.
  • the elasticity (stretch stress) of the low-stretch region 20NA and the stretch region 20EA may be compared by pulling each region by a human, or by using a tensile tester (for example, an autograph type tensile tester manufactured by Shimadzu Corporation). AG-1KN1, etc.) may be used for confirmation.
  • a low-stretch region 20NA and a stretch region 20EA are cut out from the front waist part 20f, and a sample of the low-stretch region (20NA) and a sample of the stretch region (20EA) having the same length in the horizontal and vertical directions of the napkin 1 are prepared. make.
  • both ends of the sample corresponding to the left-right direction (stretching direction) of the napkin 1 are pinched with chucks, and the sample is stretched with the distance between the chucks separated until the sample breaks. It can be confirmed that the sample in the stretchable region has a higher stretchability than the sample in the low stretchable region because the distance between the chucks when the sample breaks is longer.
  • the ventral contact portion 20fA of the front waistline portion 20f is separated from the rear waistline portion 20b along the cutting line 26, and the tab 30 is spread outward (one side) in the left-right direction.
  • the non-separated portion 20fB of the front waistline portion 20f remaining on the side joint portion 40 side is laterally inward of the engaging portion 32. preferably located.
  • the non-separable portion 20fB of the front waist portion 20f does not cover the engaging portion 32, and the tab 30 is firmly engaged with the ventral contact portion 20fA of the front waist portion 20f by the engaging portion 32.
  • the tab 30 is engaged with the ventral contact portion 20fA
  • the unevenness of the cut end of the non-separable portion 20fB rubs against the non-skin side of the ventral contact portion 20fA, causing the tab 30 and the back waist portion 20b to be separated from each other.
  • Positional deviation of the side contact portion 20fA can be suppressed.
  • the tab 30 can be easily engaged with the ventral contact portion 20fA, and displacement during wearing can be suppressed.
  • the left-right direction from the inner end of the side joint portion 40 on the side where the tab 30 is joined (one side in the left-right direction) to the perforation line 26 It is preferable that the length W10 from the cutoff line 26 to the inner (other side) end in the left-right direction of the low-stretch region 20NA is longer than the length W9.
  • the left-right direction length W9' of the non-separated portion 20fB of the front waistline portion 20f remaining on the side joint portion 40 side (FIG. 19)
  • the length W10′ in the left-right direction of the low-stretch region 20NA in the ventral contact portion 20fA is longer than that. Therefore, in a state where the tab 30 is engaged with the ventral contact portion 20fA, the non-separated portion 20fB remaining in the side joint portion 40 is moved by the end portion (low stretchable region 20NA) of the ventral contact portion 20fA that is difficult to curl. can be covered.
  • the non-separated portion 20fB is less likely to come into contact with the wearer's skin, and discomfort during wearing can be reduced. Further, by lengthening W10, the length of the end portion of the ventral contact portion 20fA that is difficult to roll up is increased, making it easier for the wearer to hold the ventral contact portion 20fA. It becomes easier to stably engage the tab 30 .
  • the waist member 20 has stretchability in the left-right direction, the stretchability is reduced at a portion of the waist member 20 that overlaps the highly rigid absorbent core 11 in the thickness direction. As described above, the stretchability of the portion of the waist member 20 that overlaps the absorbent core 11 may be intentionally suppressed. However, when the engaging portion 32 of the tab 30 is engaged with the portion of the waist member 20 that overlaps the absorbent core 11 and has reduced stretchability, the degree of entanglement of the engaging portion 32 with the fibers of the waist member 20 is reduced.
  • the vertical length L6 (see FIG. 14) from the upper end of the front waistline portion 20f to the upper end of the front side of the absorbent core 11 is the length of the engaging portion 32 in the vertical direction. It is preferably longer than L8.
  • the engaging portion 32 and the absorbent core 11 are easily displaced in the vertical direction and are unlikely to overlap in the thickness direction. That is, the engaging portion 32 is easily engaged with the portion of the front waistline portion 20f that does not overlap with the absorbent core 11 in the thickness direction and is not stretchable. Therefore, the hook material of the engaging portion 32 is easily entangled with the fibers of the waist member 20, and the engagement strength of the tab 30 can be increased.
  • the vertical length L7 (see FIG. 14) from the upper end of the rear waist portion 20b to the rear upper end of the absorbent core 11 is is preferably shorter than the length L8.
  • the rear absorbent core 11 extends upward, the rigidity of the upper end of the rear waist portion 20b is increased. Therefore, when the wearer wraps the waist member 20 around the thigh, the rear waist part 20b is less likely to hang down, and the contact of the napkin 1 with the toilet bowl can be suppressed. In addition, back leakage of excrement can be suppressed. In addition, since the tab 30 (engagement portion 32) is not engaged with the rear waist portion 20b, even if the rear absorbent core 11 extends long upward, the engagement strength of the engagement portion 32 is weakened. does not occur.
  • the napkin in its natural state, in which the tabs 30 joined to the side joints 40 are engaged with the non-skin side surfaces of the front waistline portion 20f in a state where the tabs 30 are spread inward in the left-right direction.
  • the engaging portion 32 is positioned on the outer side (one side) of the absorbent core 11 in the left-right direction.
  • the engaging portion 32 is easily engaged with the portion of the front waistline portion 20f that does not overlap with the absorbent core 11 in the thickness direction and does not have reduced stretchability. Therefore, the hook material of the engaging portion 32 is easily entangled with the fibers of the waist member 20, and the engagement strength of the tab 30 can be increased.
  • the tab 30 when the tab 30 is closed inward in the left-right direction (see FIG. 17), at least one of the upper end and the lower end of the tab 30 (in this embodiment, both the upper end and the lower end) is directed inward in the left-right direction. Accordingly, it is preferable that the tab 30 has a shape having an inclined portion 30A that is inclined toward the center in the vertical direction. In other words, the free end of the tab 30 on the side opposite to the side joined at the side joint 40 is preferably tapered.
  • the wearer can easily hold the free end of the tab 30 (the end opposite to the side joined to the side joint 40).
  • the upper end of the tab 30 is less likely to come into contact with the wearer's abdomen during breathing, and the lower end of the tab 30 is less likely to come into contact with the wearer's leg when raising the leg. Therefore, the wearer is less likely to feel the tab 30 as a foreign object while wearing the napkin 1, and the wearing comfort is improved.
  • the color of the non-skin side of the front waist portion 20f (whole) and the color of the non-skin side of the tab 30 (whole) are similar colors.
  • a white tab is provided with a blue or green engaging portion, and the color of the engaging portion can be seen through from the outside of the diaper, and the front waist portion
  • the color of the non-skin side is often different between the tab and the tab. Therefore, like the napkin 1 of this embodiment, by making the color of the front waist part and the non-skin side of the tab similar, the appearance of the napkin 1 is reduced and the appearance of the napkin 1 is improved.
  • the tab 30 has a plurality of compressed portions 33 in which the tab 30 is compressed in the thickness direction in the region where the engaging portion 32 is arranged.
  • the compressed portion 33 may be compressed from the skin side of the tab 30 or from the non-skin side. becomes visible.
  • the engaging portion 32 is often joined to the base sheet 31 forming the tab 30 with an adhesive, the joining strength between the tab 30 and the engaging portion 32 is further increased by the pressing portion 33 . Therefore, the tab 30 can be reattached without the engaging portion 32 coming off from the tab 30 . Moreover, it is possible to prevent the tab 30 from coming off while the napkin 1 is being worn.
  • the plurality of compressed portions 33 provided on the tab 30 have a higher average pitch (vertical direction and lateral direction) than the plurality of joint portions (for example, welded portions not shown) provided on the side joint portion 40. (average pitch in at least one direction) should be large.
  • average pitch in at least one direction should be large.
  • the similar color means that the hue is less than 5, the brightness is less than 1, or the saturation is less than 1 in the Munsell color system (100 hues), and the color is the same.
  • the color difference ⁇ E is less than one. Color difference is measured as follows. (1) Prepare X-Rite eXact Standard (measurement diameter: 1.5 mm) manufactured by X-Rite. (2) CIE L * a * b * coordinates of the portion to be measured of the sample (the non-skin side of the front waist portion 20f) are measured at 10 or more points by changing the position, and their average values (L1 * , a1 * , b1 * ).
  • elastic skin-side sheets 22 and 23 are arranged on the waist member 20, so that the waist member 20 is imparted with elasticity in the left-right direction.
  • stretchability may be imparted to the waist member 20 by arranging a plurality of thread-like elastic members (such as thread rubber) that stretch in the horizontal direction at intervals in the vertical direction.
  • the minimum vertical length L1 of the front waistline portion 20f that overlaps with the tab 30 is 80 mm or more and 150 mm or less, and the vertical length L2 of the side joint portion 40 is 100 mm or more and 160 mm or less;
  • the ventral contact portion 20fA of the front waistline portion 20f is longer in the lateral direction than the rear waistline portion 20b (W1>W2).
  • a pants-type absorbent article that satisfies at least one of them may be used without being limited to satisfying both.
  • FIG. 21 is a developed plan view of the napkin 1 with the front waistline portion 20f separated from the rear waistline portion 20b along the tear line 26.
  • FIG. 22 is a front view of the underpants-type napkin 1 viewed from the front side.
  • FIG. 23 is a front view of a state in which the napkin 1 is held so that the longitudinal center line CL1 of the engaging portion 32 is horizontal.
  • FIG. 24 is a front view of a modified napkin 1 held in the same manner as in FIG.
  • the napkin 1 of the third embodiment has tabs 30 that removably engage with the front waistline portion 20f. Therefore, when the wearer uses the napkin 1 in a tape shape, the wearer can engage the tab 30 with the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer. Therefore, the wearability is good when the wearer wears the napkin 1 by himself/herself. Also, when removing the napkin 1, the wearer can remove the tab 30 from the front waist portion 20f while visually recognizing the tab 30 on the front side of the wearer.
  • the tab 30 is provided on the non-skin side (outside) of the waist member 20, and the engaging portion 32 provided on the skin side surface of the tab 30 is attached to the non-skin side of the front waist portion 20f. Engage the sides.
  • the tab 30 is provided on the skin side (inner side) of the waist member 20, and after the waist member 20 is separated, the engaging portion 32 provided on the non-skin side of the tab 30 is attached to the front. It may be in a form that engages with the skin side surface of the waist portion 20f.
  • the napkin 1 when the napkin 1 is attached while still in the pants shape, it is possible to take off the napkin 1 in the pants shape, but it is also possible to remove the napkin 1 by tearing the front waist portion 20f along the cutting line 26. be. Conversely, when the napkin 1 is attached in a tape-type state, the napkin 1 can be taken off without removing the tab 30 .
  • the front waist portion 20f preferably has a perforation line 26 (for example, a perforation) having a length in the vertical direction at the end in the width direction. By doing so, the wearer can easily tear the front waist portion 20f.
  • a perforation line 26 for example, a perforation
  • the perforation line 26 of the present embodiment is provided over the entire front waistline portion 20f in the longitudinal direction, the perforation line 26 may be provided only in a part of the front waistline portion 20f in the longitudinal direction.
  • the perforation line 26 is not limited to a linear shape along the vertical direction as shown in the stretched napkin 1 (FIG. 11), but may be a straight line or curved line inclined with respect to the vertical direction.
  • the perforation line 26 may be any line that can easily tear the front waistline portion 20f in the vertical direction, such as a notch provided at the end of the front waistline portion 20f on the waistline side or the end on the crotch side. good too.
  • the napkin 1 may not have the perforation line 26.
  • the side joints 40 are formed by welding or the like, and have higher rigidity than other regions of the waist member 20 . Therefore, the wearer can tear the front waist portion 20 f along the widthwise inner edge 40 a of the side joint portion 40 .
  • the tab 30 is visible from the non-skin surface side (outside) of the napkin 1 in the initial state after the napkin 1 is taken out of the package.
  • the front waistline portion 20f has the perforation line 26, as in the napkin 1 of the present embodiment, the front waistline portion 20f is not torn in the vertical direction along the perforation line 26. It is preferable that the tab 30 is visible from the non-skin side.
  • the napkin 1 can be used as either a pants type or a tape type. Therefore, the wearer of the napkin 1 can put on and take off the napkin 1 as it is in a pants shape or in a tape shape according to the situation at that time, and the easiness of putting on and taking off the napkin 1 is improved. .
  • the napkin 1 tends to hang down as shown in FIG. 16B.
  • the absorbent core 11 which accounts for most of the weight of the napkin 1, tends to hang down from the thighs. If the portion of the napkin 1 hanging down from the thigh comes into contact with the toilet bowl, the sanitary condition of the napkin 1 to be worn from now on will be deteriorated.
  • the center 32a in the width direction of the end of the engagement portion 32 provided in the tab 30 on the waist side (one side) in the vertical direction and the crotch side (the other side) in the vertical direction of the engagement portion 32 When the napkin 1 is held so that the center line CL1 (see FIGS. 21 and 22) connecting the center 32b in the width direction of the edge of the side) is horizontal (FIG. 23), the maximum of the absorbent core 11 The bottom end 11L is positioned above the bottom end 1L of the napkin 1 (product).
  • the sanitary condition of the napkin 1 can be maintained in good condition.
  • the wearer can concentrate on the operation of wrapping the waist member 20 around the thigh, and the wearability of the napkin 1 is improved.
  • the wearer rotates the napkin 1 along the circumferential direction of the thigh, and as shown in FIG. 16C, the absorbent core 11 (absorbent main body 10) Pull it up between your thighs. Therefore, since the absorbent core 11 is less likely to hang down, the operation of pulling up the absorbent core 11 is facilitated.
  • the pant-shaped napkin 1 in which the waist member 20 is not separated by the perforation line 26 or the like is held and observed as shown in FIG. Further, the napkin 1 is held so that the center line CL1 of the engaging portion 32 of the tab 30 in the initial state taken out of the package is horizontal.
  • the napkin 1 of this embodiment is in the state shown in FIG. 22 when it is taken out from the package. Therefore, the tab 30 is engaged with the front waistline portion 20f in a state of being expanded inward in the width direction from the position (side joint portion 40) where the tab 30 is joined to the waistline member 20, and the engagement at the position of the tab 30 is prevented.
  • the napkin 1 is held so that the center line CL1 of the joining portion 32 is horizontal.
  • the initial state taken out of the package is not the state shown in FIG.
  • the napkin 1 is held so that CL1 (the center line CL1 of the folded engaging portion 32 when the engaging portion 32 is also folded) is horizontal.
  • a metal ruler conforming to JIS Class 1 for example, a straight silver ruler manufactured by Shinwa Measurement Co., Ltd. (length 335 mm or 500 mm, width 25 mm, 1 mm thick), or equivalent).
  • JIS Class 1 for example, a straight silver ruler manufactured by Shinwa Measurement Co., Ltd. (length 335 mm or 500 mm, width 25 mm, 1 mm thick), or equivalent.
  • the plane of the ruler 51 is aligned with the horizontal surface of the workbench 50, and the ruler 51 is protruded from the workbench 50 by 200 mm.
  • the ruler 51 is passed through the leg opening 1b and the waist opening 1a of the napkin 1 .
  • the open end of the waistline of the napkin 1 is aligned with the position 50 mm inside (on the workbench 50 side) from the protruding end of the ruler 51 .
  • the vertical center line CL1 of the engaging portion 32 of the napkin 1 is aligned with the central position of the width (25 mm) of the ruler 51 .
  • observe the state of the napkin 1 hanging from the ruler 51 for example, compare the position of the lowest end of the absorbent core 11 and the napkin 1). Note that it is preferable to fix the work table 50 and the ruler 51 or the ruler 51 and the napkin 1 using double-sided tape or the like.
  • the ruler 51 bends due to the weight of the pants-type absorbent article, two or three rulers 51 may be stacked in the thickness direction to hold the pants-type absorbent article. Alternatively, the length of the ruler 51 protruding from the workbench 50 may be shortened. The following measurements and comparisons shall be made in the same way. Moreover, the measurement and comparison of the napkin 1 in the state of FIG. 23 may be performed with the actual napkin 1, or may be performed based on the image of the napkin 1 in the state of FIG. 23 photographed from the front side.
  • the portion of the absorbent core 11 located on the front side of the two-folded portion F (end of the crotch side in the longitudinal direction) of the napkin 1 is also referred to as the “front-side absorbent core 11F”, and the two-folded portion
  • the portion of the absorbent core 11 located on the rear side of F is also referred to as "the rear absorbent core 11B”.
  • the portion of the absorbent body 10 located on the front side of the two-folded portion F of the napkin 1 is also referred to as the "front-side absorbent body 10F", and the portion of the absorbent body 10 located on the rear side of the two-folded portion F.
  • the part is also called "back absorbent main body 10B".
  • a horizontal line LH (a horizontal line in the vertical direction) passing through a point P1 where the upper side end 11SU of the width direction side ends of the front absorbent core 11F and the two-folded portion F of the napkin 1 intersect. location).
  • the vertical (vertical) length L4 from the horizontal line LH to the lowermost edge 1L of the napkin 1 is the vertical length from the horizontal line LH to the uppermost edge 1U of the napkin (that is, the upper surface of the ruler 51). shorter than L3.
  • the position of the horizontal line LH generally corresponds to the position of the lower surface of the thigh around which the waist member 20 is wrapped. Therefore, by shortening the vertical length L4 from the horizontal line LH to the lowermost end 1L of the napkin 1 as described above, it is possible to reduce the hanging amount of the napkin 1 when the waist member 20 is wrapped around the thigh. .
  • the length L4 can be shortened compared to the absorbent article in which the lowest end of the absorbent core is the lowest end of the product, and the waist member 20 is attached to the thigh. can reduce the hanging amount of the napkin 1 when it is wound. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed.
  • the front non-skin side of the napkin 1 in the natural state shown in FIG. 22 (for example, the napkin 1 in an unloaded state laid flat on a horizontal table) is marked with a pen. That is, the position of the intersection point P1 between the folded portion F of the napkin 1 and the side end 11SU of the absorbent core 11 on the side where the engaging portion 32 is held horizontally is marked.
  • a horizontal line LH passing through the intersection point P1 is marked with a pen.
  • lengths L3 and L4 from the horizontal line LH to the top end 1U and the bottom end 1L of the napkin 1 are measured with a ruler or the like.
  • the horizontal line LH may be specified on the image data obtained by photographing the napkin 1 in the state of FIG. 23 from the front side, and the lengths L3 and L4 may be compared.
  • the front absorbent main body 10F has a first center C1, which is the center in the width direction of the end of the vertical waist side (one side), and the front absorbent main body. It has a second center C2 that is the center in the width direction of the center line that bisects 10F in the lengthwise direction, and a third center C3 that is the center in the width direction of the end on the crotch side (the other side) in the lengthwise direction.
  • the horizontal direction of the line La connecting the first center C1 and the second center C2 and the inclination of the line Lb connecting the second center C2 and the third center C3 with respect to the horizontal direction In the napkin 1 of the present embodiment, when the napkin 1 is held so that the center line CL1 of the engaging portion 32 is horizontal (FIG. 23), the horizontal direction of the line La connecting the first center C1 and the second center C2 and the inclination of the line Lb connecting the second center C2 and the third center C3 with respect to the horizontal direction.
  • the line La and the line Lb having the same slope with respect to the horizontal direction only need to be substantially the same, and even if there is an error in the slope of about 0 to 5 degrees or less, it is the same.
  • the fact that the line La and the line Lb have the same inclination with respect to the horizontal direction and that the line La and the line Lb are located on the same line means that the portion on the waist side in the vertical direction of the absorbent body 10 (the portion in the range of C1 to C2 ), the part on the crotch side (the part in the range of C2 to C3) is not inclined.
  • the absorbent main body 10 does not fold in the middle of the vertical direction, and the crotch side portion of the absorbent main body 10 does not hang down. Therefore, when the waist member 20 is wrapped around the thigh, the contact of the napkin 1 with the toilet bowl can be suppressed.
  • the following method can be used to confirm the inclination of the lines La and Lb.
  • positions of the first center C1 to the third center C3 are marked with a pen on the front non-skin side of the napkin 1 in the natural state shown in FIG.
  • a line La connecting the first center C1 and the second center C2 and a line Lb connecting the second center C2 and the third center C3 are marked with a pen on the napkin 1 in the state of FIG.
  • the inclination of the lines La and Lb with respect to the horizontal direction is confirmed using a ruler or the like.
  • the line La and the line Lb may be specified and the inclinations thereof may be compared.
  • the napkin 1 held so that the center line CL1 of the engaging portion 32 is horizontal is viewed from the front side, as shown in FIG. It is preferable that the skin side surface of the absorbent body 10 on the rear side is visible below the lower side end 10SL (that is, from the leg opening 1b on the lower side).
  • the tab 30 is engaged with the widthwise inner position of the front waistline portion 20f, or the widthwise stretchability of the rear waistline portion 20b is reduced.
  • the absorbent body 10F on the front side is positioned on the upper side, so that the napkin 1 is rotated along the circumferential direction of the thigh and between the thighs.
  • the operation of pulling up the absorbent main body 10 is facilitated. In other words, the amount that the wearer pulls up by holding both sides of the front absorbent main body 10F in the width direction is reduced, making it easier to move to the next operation.
  • the napkin 1 held so that the center line CL1 of the engaging portion 32 is horizontal when viewed from the front side, the absorption in the width direction
  • the skin side of the absorbent main body 10B on the rear side may be visible above the upper side end 10SU of the pair of side edges of the absorbent main body 10 (that is, from the upper leg opening 1b).
  • the tab 30 is engaged with the widthwise outer position of the front waistline portion 20f, or the widthwise stretchability of the rear waistline portion 20b is increased.
  • the rear part of the napkin 1 is more likely to be positioned closer to the toilet bowl than the front part, and is wrapped under the thigh. Therefore, by locating the rear absorbent main body 10B on the upper side as described above, the contact of the rear portion of the napkin 1 with the toilet bowl can be further suppressed.
  • the inclination of the front absorbent main body 10F with respect to the horizontal direction is smaller than in the case of FIG. Therefore, when the wearer pulls up the front absorbent main body 10F between the thighs (FIG. 16C), the inclination of the front absorbent main body 10F with respect to the direction in which the thigh extends is small, and the front absorbent main body 10F is pulled up. Alignment operation is facilitated.
  • the engaging portion 32 (32A) is provided at the opposite side in the width direction.
  • the engaging portion 32 (32B) of the lower tab 30 is preferably located above the lowermost end 1L of the napkin 1. As shown in FIG.
  • at least a portion of the engaging portion 32 (32B) of the lower tab 30 is preferably located on the waist circumference side.
  • the tab 30 (engaging portion 32B) on the opposite side is positioned near the wearer. Therefore, the wearer can find the tab 30 (engagement portion 32B) on the opposite side by simply looking down without bending forward, and can easily move to the next operation.
  • the napkin 1 is pulled up as shown in FIG.
  • the method of breaking has been described, it is not limited to this.
  • tab 30 may be grasped from under the opposite thigh and tab 30 may be opened under the thigh to break front waistline 20f.
  • the torn portion of the front waist portion 20f can be wrapped around the thigh from below as it is.
  • the tab 30 (engagement portion 32B) on the opposite side is positioned near the wearer, making it easier for the wearer to grasp the tab 30 from below the thigh.
  • the napkin 1 of the present embodiment is a pants-type absorbent article for adults (including elementary and junior high school students who have reached menarche), but the volume of the absorbent core 11 is relatively small. Strictly speaking, the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is relatively small, and is set to 100 cm 3 or more and 250 cm 3 or less.
  • the volume of the portion of the napkin 1 where the absorbent core 11 is arranged includes the "longitudinal length of the absorbent core 11", the "width of the absorbent core 11", and the "width of the absorbent core 11". It is obtained by multiplying the thickness of the part of the napkin 1 that is attached (the thickness from the top sheet 11 to the non-skin side sheet 21 in FIG. 12). However, the thickness of the sheet overlaid on the absorbent core 11 is smaller than the thickness of the absorbent core 11 .
  • the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is close to the volume of the absorbent core 11, so in this specification, the volume of the portion of the napkin 1 where the absorbent core 11 is arranged is , simply referred to as "the volume of the absorbent core 11".
  • the volume of the absorbent core 11 By reducing the volume of the absorbent core 11 to 250 cm 3 or less, the mass and dimensions (length, width, thickness, etc.) of the absorbent core 11 can be reduced. Therefore, when the wearer wraps the waist member 20 around the thighs in order to wear the napkin 1 in a tape shape, the absorbent core 11, which occupies most of the mass of the napkin 1, does not easily hang down, and the toilet bowl of the napkin 1. can suppress contact with Therefore, the sanitary condition of the napkin 1 can be maintained well, and the wearability is also improved.
  • the width of the absorbent core 11 is preferably 50 mm or more and less than 100 mm.
  • the width of the absorbent core 11 By setting the width of the absorbent core 11 to less than 100 mm, the volume of the absorbent core 11 can be reduced as described above.
  • the lowermost position 11L (see FIG. 24) of the absorbent core 11 can be positioned upward when the waist member 20 is wrapped around the thigh. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed.
  • the width of the absorbent core 11 to 50 mm or more, it is possible to provide the wearer with a sense of security and to suppress lateral leakage of excrement.
  • the thickness of the napkin 1 at the portion where the absorbent core 11 is arranged that is, the thickness of the absorbent core 11 and the sheet arranged to overlap the absorbent core 11
  • a total thickness of less than 5.5 mm is preferred.
  • the thickness of the sheet superimposed on the absorbent core 11 is smaller than the thickness of the absorbent core 11.
  • the thickness of the napkin 1 is also simply referred to as "the thickness of the absorbent core 11".
  • the thickness of the absorbent core 11 By setting the thickness of the absorbent core 11 to be less than 5.5 mm, the volume of the absorbent core 11 can be reduced as described above, and the bulging of the napkin 1 in the front-rear direction can be suppressed. can suppress contact with
  • the mass of the absorbent core 11 is 10 g or more and 40 g or less.
  • the mass of the absorbent core 11 is 10 g or more and 40 g or less.
  • the napkin 1 is unfolded and stretched to the extent that there are no wrinkles, and the maximum length in the longitudinal direction (longitudinal direction of the napkin 1) when the absorbent core 11 is spread out in a plane. to measure.
  • the absorbent core 11 is longitudinally divided into three regions R1 to R3 (see FIG. 21). Then, the widths W1 to W3 of the absorbent core 11 are measured at the longitudinal central positions of the regions R1 to R3.
  • the width W of the absorbent core 11 is defined as the average value of the three widths W1 to W3.
  • the width W is preferably 50 mm or more and less than 100 mm.
  • the thicknesses t1 to t3 of the absorbent core 11 are measured at the respective centers (centers in the longitudinal and width directions) of regions R1 to R3 obtained by dividing the absorbent core 11 into three in the longitudinal direction.
  • the average value of the three thicknesses t1 to t3 is defined as the thickness t of the absorbent core 11 (the thickness of the napkin 1 at the portion where the absorbent core 11 is arranged). Its thickness t is preferably less than 5.5 mm.
  • a value obtained by multiplying the length of the absorbent core 11 by the width W and the thickness t is defined as the volume of the absorbent core 11 (the volume of the portion of the napkin 1 where the absorbent core 11 is arranged).
  • Its volume is preferably 100 cm 3 or more and 250 cm 3 or less.
  • Measurement of mass is performed after measuring the above dimensions. First, the material constituting the napkin 1 is separated using toluene, and the absorbent core 11 (including the core wrap sheet) is taken out. After air-drying the separated absorbent core 11 for 24 hours, the mass of the absorbent core 11 (pulp fiber, SAP, core wrap sheet, etc.) is measured. It is preferable that the mass is 10 g or more and 40 g or less.
  • the thickness of the side edge in the width direction of the absorbent core 11 is particularly thin at the two-folded portion F of the napkin 1.
  • the thickness of the side edges in the width direction of the two-fold portion F of the absorbent core 11 is greater than the thickness of the absorbent core 11 measured by the above measuring method (that is, the thickness of the central portion in the width direction). It should be thin, 4 mm or less.
  • the thickness of the side edge of the absorbent core 11 is measured by the same method as the above-described measuring method while changing the measuring point.
  • the thickness of each napkin 1 is measured at two points (left and right side edges), and the average value is taken as the thickness of the side edge of the absorbent core 11 .
  • the thickness of the absorbent core 11 is measured by using, for example, a dial thickness gauge ID-C1012C manufactured by Mitutoyo Co., Ltd. or its equivalent, and applying pressure to the target site at, for example, 3.0 gf/cm 2 . value.
  • the absorbent core 11 it is preferable to measure the volume, width, thickness, and mass of the absorbent core 11 for a plurality of (eg, five) napkins 1 and confirm that the average value is within the above range.
  • the napkins 1 to be measured are preferably napkins contained in the same package, but may be napkins contained in the same cardboard or napkins having the same production date.
  • one end of the napkin 1 in the longitudinal direction (the direction orthogonal to the width direction and along the longitudinal direction of the absorbent body 10) to the center CL is preferably 200 mm or more and 350 mm or less.
  • the length L6 is set to 350 mm or less, the length of the portion of the napkin 1 extending from the waist member 20 to the crotch side is appropriately reduced, so that the napkin 1 does not easily hang down when the waist member 20 is wrapped around the thigh. Contact of the napkin 1 with the toilet bowl can be suppressed.
  • setting the length L6 to 200 mm or more provides a size that fits an adult.
  • the width of the absorbent core 11 is narrower than the width of the absorbent main body 10, and the absorbent main body 10 has a region in which the absorbent core 11 does not exist on the lateral sides in the width direction. is preferred.
  • the lateral sides of the absorbent body 10 in the width direction are less rigid. Therefore, after the waist member 20 is wrapped around the thighs, when the wearer rotates the waist member 20 and pulls up the absorbent main body 10, the side portions of the absorbent main body 10 extend along the circumferential direction of the wearer's thighs. This makes it easier to rotate the waist member 20. Therefore, the wearability of the napkin 1 is improved.
  • a pair of tabs 30 be provided on both sides of the waist member 20 in the width direction.
  • the napkin 1 can be worn by wrapping the waist member 20 around both thighs.
  • the pair of tabs 30 are removed from the front waist portion 20f, and the napkin 1 can be pulled out from between the thighs. Therefore, unlike the case of putting on and taking off the napkin 1 in the form of pants, it is not necessary to pass the toe through the opening 1b around the leg of the napkin 1 to put on and take off. Therefore, the wearer can put on and take off the napkin 1 without taking off pants, shoes, stockings, etc., and can easily replace the napkin 1 on the go.
  • one tab 30 (engaging member) having one engaging portion 32 is provided on one side in the width direction of the waist member 20, and the width direction of the waist member 20
  • one tab 30 (another engaging member) having one engaging portion 32 is provided on the other side of the . That is, it is preferable that one tab 30 is provided on each side of the napkin 1 in the width direction.
  • the wearer only has to engage the tabs 30 (engaging portions 32) once on both sides in the width direction, and can easily wear the garment.
  • the appearance of the napkin 1 is also improved.
  • the amount of excretion is small, and the absorbent core 11 after excretion is also light. Therefore, in the napkin 1 of the present embodiment, for example, a tab having two engaging portions arranged in the vertical direction is provided like a pants-type absorbent article for nursing care, or a tab having one engaging portion is provided in the vertical direction. Even if two tabs are arranged side by side and the tabs are not firmly fixed to the front waist part 20f, the napkin 1 is less likely to slip off.
  • the number of engaging portions 32 and tabs 30 is not limited to one on both sides in the width direction.
  • the napkin 1 may have the tab 30 only on one side of the waist member 20 in the width direction.
  • the napkin 1 of the present embodiment may be a pants-type absorbent article that can be used as a tape type at least on one side in the width direction.
  • the front waist portion 20f and the rear waist portion 20b have skin-side sheets 22 and 23 that stretch in the width direction, and waist elastic members 24 that stretch in the width direction ( For example, it has a plurality of thread rubbers). As shown in FIGS. 11 and 21, the front waistline portion 20f and the rear waistline portion 20b have a continuous stretchable region 20EA that stretches in the width direction at least in a region where the position in the width direction overlaps with the absorbent main body 10. is preferred.
  • napkin 1 fits around the wearer's waist.
  • the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b, but the ventral contact portion 20fA of the front waistline portion 20f is separated from the back waistline portion 20b.
  • the portion 20fA is pulled outward on both sides in the width direction to fit the waist of the wearer.
  • the wearer wraps the waist member 20 around the thigh, the abdominal contact portion 20fA is easily pulled toward the front of the thigh, and the tab 30 is engaged with the abdominal contact portion 20fA on the thigh. easier to do.
  • the skin-side sheets 22 and 23 and the waist elastic member 24 cause the front waist portion 20f and the rear waist portion 20b to contract in the width direction (to fit around the thighs), so that the napkin 1 does not easily hang down. Therefore, the contact of the napkin 1 with the toilet bowl can be suppressed.
  • the elastic force may be reduced to ensure the flatness of the absorbent core 11.
  • the area ratio of the joints (welded portions) between the non-skin-side sheet 21 and the skin-side sheets 22 and 23 is increased compared to the other regions, thereby It is preferable to suppress the elastic properties of the side sheets 22 and 23 . By doing so, it is possible to secure the absorbent area of the absorbent core 11 and prevent the occurrence of a gap between the absorbent core 11 and the wearer.
  • the front waist portion 20f preferably has a low stretchable region 20NA having a lower stretchability than the stretchable region 20EA outside the stretchable region 20EA in the width direction (on the side where the tab 30 is provided).
  • the low-stretch region 20NA when the wearer pulls the front waistline portion 20f in the width direction to break it, the force is efficiently transmitted to the breaking portion, and the front waistline portion 20f can be broken with a small force.
  • the napkin 1 has a perforation line 26, the perforation line 26 is preferably arranged between both side ends of the low stretchable region 20NA in the width direction.
  • the front waistline portion 20f has the stretchable region 20EA continuously in at least the region where the position in the width direction overlaps with the absorbent main body 10. As shown in FIG.
  • the rear part of the napkin 1 is more likely to be positioned closer to the toilet bowl than the front part, and can be passed under the thighs and wrapped around the toilet bowl, making it easier to contact the toilet bowl. Therefore, it is preferable that the rear waist portion 20b has a continuous elastic region 20EA in the region between the pair of side joints 40 in the width direction. By doing so, the rear waist portion 20b is given stretchability in a wider range in the width direction, and when the waist member 20 is wrapped around the thighs of the wearer, the back portion of the napkin 1 can be suppressed from sagging. .
  • the rear waist portion 20b has a non-skin side sheet 21 forming the non-skin side, but as shown in FIGS. It is folded back on the skin side. And it covers the longitudinal end of the back absorbent main body 10 from the skin side.
  • the absorbent main body 10 has leak-proof wall elastic members 141 (sides) extending and contracting along the longitudinal direction of the absorbent main body 10 at the lateral sides thereof in the width direction. part elastic member).
  • the stress in the width direction (stretching stress) in the stretchable region 20EA of at least one of the front waistline portion 20f and the rear waistline portion 20b is the stress in the longitudinal direction (stretching stress) in the region where the leakproof wall elastic member 141 is arranged. stress).
  • the fit of the napkin 1 to the wearer's waist can be improved.
  • sagging of the napkin 1 when the waist member 20 is wrapped around the thigh can be suppressed.
  • the absorbent main body 10 is less likely to stretch in its longitudinal direction. Therefore, the waist member 20 can be easily rotated.
  • the comparison between the stretching stress in the width direction of the front waist portion 20f or the rear waist portion 20b and the stretching stress in the longitudinal direction of the side portions of the absorbent body 10 can be made using a tensile tester (for example, an auto tester manufactured by Shimadzu Corporation). It can be confirmed using a graph type tensile tester AG-1KN1, etc.).
  • a tensile tester for example, an auto tester manufactured by Shimadzu Corporation. It can be confirmed using a graph type tensile tester AG-1KN1, etc.
  • the length in the width direction (stretching direction) of the cut-out elastic region 20EA x the width (the length in the direction perpendicular to the stretching direction), and the length in the longitudinal direction (stretching direction) of the elastic part of the cut-out leak-proof wall elastic member 141 Samples are prepared so that the width and height are the same (for example, 200 mm x 25 mm). Then, both ends of each sample in the stretching direction are pinched with chucks, the chuck interval is separated at a speed of 100 mm / min, the sample is stretched until it reaches the maximum stretched state, and then it is reversed and contracted to 80%. Obtain the load (N/25 mm).
  • the tensile load (N/25 mm) should be compared as the stress (stretching stress) of each sample.
  • stress stress varies depending on the location of the waistline portions 20f and 20b
  • at least the maximum stress of the waistline portions 20f and 20b should be greater than the stress of the side portions of the absorbent main body 10, and more preferably the waistline portion 20f. , 20b should be greater than the stress on the sides of the absorbent body 10 .
  • the absorbent body 10 has a plurality of absorbent body elastic members 15 that stretch and contract along its longitudinal direction.
  • the absorbent elastic member 15 is made of thread rubber, for example, and is positioned closer to the non-skin side than the liquid-impermeable sheet 13a located on the non-skin side of the absorbent core 11 (in FIG. 12, the liquid-impermeable sheet 13a and the hydrophobic and the sheet 13b) in a state of being stretched in the longitudinal direction.
  • five absorbent body elastic members 15 are provided at predetermined intervals in the width direction.
  • the absorbent main body 10 is contracted and lifted toward the wearer's skin, and the absorbent main body 10 is easily brought into close contact with the wearer's crotch (vaginal opening) and excreted. Liquid leakage can be suppressed.
  • the absorbent main body 10 is lifted toward the skin, contact of the absorbent main body 10 with the toilet bowl can be further suppressed when the waist member 20 is wrapped around the thigh.
  • the expansion ratio of the absorbent body elastic member 15 is about 1.4 to 3.3 times.
  • the extension ratio is represented by a value obtained by dividing the length of the elastic member in the stretched state by the length of the elastic member in the natural state. It is preferable to set the extension ratio of the absorbent body elastic member 15 to a relatively large ratio.
  • the napkin 1 of the present embodiment has a front extending portion 20fe and a rear extending portion 20be ( extension member).
  • the front extending portion 20fe and the rear extending portion 20be can cover the lower abdomen and buttocks of the wearer, and the appearance of the napkin 1 is also improved.
  • the front extension 20fe and the rear extension 20be hang down from the waist member 20 (thighs) and may come into contact with the toilet bowl.
  • the front extension 20fe and the rear extension 20be with leg elastic members 25 (for example, rubber threads) that extend and contract along the leg openings 1b.
  • the leg elastic member 25 causes the front extension portion 20fe and the rear extension portion 20be to contract in the width direction and the vertical direction. Therefore, when the waist member 20 is wrapped around the thigh, the front extension fe and the rear extension 20be can be prevented from sagging and can be prevented from coming into contact with the toilet bowl.
  • the elastic skin-side sheets 22 and 23 extend from the front waistline portion 20f and the rear waistline portion 20b (side joint portion 40) to the crotch side.
  • the elastic skin-side sheets 22 and 23 it is preferable to arrange the elastic skin-side sheets 22 and 23 on at least a part of the front extending portion fe and the rear extending portion 20be to provide a stretchable region that stretches in the width direction.
  • the napkin 1 of the present embodiment in its unfolded state, as shown in FIG. 21, some kind of elastic member (stretchable region) is arranged from one end to the other end in the vertical direction. Therefore, the entire napkin 1 in its natural state is contracted, and the overall size of the napkin 1 is reduced. Therefore, when the waist member 20 is wrapped around the thigh, the napkin 1 can be prevented from hanging down.
  • some kind of elastic member stretchable region
  • the napkin in its natural state, in which the tabs 30 joined to the side joints 40 are engaged with the non-skin side surfaces of the front waistline portion 20f in a state where the tabs 30 are spread toward the inside in the width direction.
  • the engaging portion 32 included in the tab 30 is provided at a position outside the front absorbent main body 10F in the width direction, and at a position closer to the opening side of the waist in the vertical direction than the front absorbent main body 10F. preferably at least one of: That is, it is preferable that the engaging portion 32 of the tab 30 is provided outside the front absorbent main body 10 without overlapping the front absorbent main body 10 in the thickness direction. In the napkin 1 of this embodiment, the engaging portion 32 is positioned outside in the width direction of the front absorbent main body 10F.
  • the front waist portion 20f has elasticity in the width direction, the elasticity is reduced at a portion overlapping the highly rigid absorbent main body 10 in the thickness direction (the elasticity may be intentionally suppressed in some cases).
  • the engaging portion 32 is engaged with the front waistline portion 20f whose stretchability has decreased, the degree of entanglement of the hook material of the engaging portion 32 with the fibers of the front waistline portion 20f is reduced. Therefore, by arranging the engaging portion 32 as described above, the engaging portion 32 can be easily engaged with the portion of the front waistline portion 20f that does not overlap with the absorbent body 10 in the thickness direction.
  • the hook material is easily entangled with the fibers of the front waist portion 20f, and the engagement strength of the tab 30 can be increased.
  • the positions of the napkin 1 in the initial state and the natural state are compared.
  • the initial state is not the state of FIG. 22 (for example, when the tab 30 is folded), the width direction inner side from the side joint 40 etc. with respect to the napkin 1 in the natural state (the waist member 20 in the natural state)
  • the positions are compared with the tab 30 extending toward the front waist portion 20f engaged with the front waist portion 20f.
  • the napkin 1 is a pants-type absorbent article for adults, but as shown in FIG. 22, the longitudinal lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 are relatively short.
  • the front waistline in the napkin 1 in the natural state, in which the tabs 30 joined to the side joints 40 are closed inward in the width direction and are engaged with the non-skin side surface of the front waistline portion 20f, the front waistline
  • the vertical lengths L1 and L2 of the portion 20f and the side joint portion 40 are as follows. First, the minimum longitudinal length L1 of the portion 20fC of the front waist portion 20f that overlaps the tab 30 in the width direction is set to 80 mm or more and 150 mm or less. Further, the vertical length L2 of the side joint portion 40 to which the tab 30 is joined is set to 100 mm or more and 160 mm or less.
  • a portion 20fC of the front waist portion 20f that overlaps with the tab 30 is a portion that is likely to be gripped by the wearer who has opened the tab 30 to tear the front waist portion 20f, as shown in FIG. 15C. Therefore, by making the longitudinal length L1 of the portion 20fC relatively short, the wearer can easily grasp the portion 20fC and pull the front waist portion 20f in front of the thigh.
  • FIG. 16D when the front waist portion 20f on the thigh is pressed from above with the hand, the front waist portion 20f can be pressed over a wide range in the vertical direction, and the position of the front waist portion 20f can be adjusted. can engage the tab 30 in a stable state.
  • the average length from the base of the thumb and index finger to the tip of the index finger is 100.6 mm for women and 100.6 mm for men. 109.7 mm for both sexes (male and female) and 107 mm for both sexes. Therefore, by setting the dimension L1 of the front waist portion 20f to 150 mm or less, the wearer can hold or hold the front waist portion 20f for more than half the length in the vertical direction. Therefore, the tab 30 can be stably engaged, and the wearability of the napkin 1 is improved.
  • the waist member 20 is a member that expands and contracts in the width direction and fits the wearer's waist. Therefore, it is preferable that the above-described dimension L1 of the front waist portion 20f is set to 80 mm or more and not too short. By doing so, the napkin 1 can be prevented from slipping down, and the wearer can use the napkin 1 with peace of mind.
  • the vertical length L2 of the side joint portion 40 is preferably slightly longer than the vertical length L1 of the front waist portion 20f, and is in the range of 100 mm or more and 160 mm or less.
  • the longitudinally long side joints 40 allow the longitudinally extending rear portion of the napkin 1 to be pulled up. Pulling force can be easily transmitted over a wide range. Therefore, it becomes easier to pull up the rear part of the napkin 1 from under the thigh.
  • the present invention is not limited to this, and the longitudinal lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 may be equal.
  • the wearability of the napkin 1 is improved when the wearer wears the napkin 1 by himself/herself.
  • an adult pants-type absorbent article for example, the napkin 1 of the present embodiment, a diaper for light incontinence, etc.
  • the absorption The absorbent core 11 is small, and the absorbent core 11 after excretion is also light. Therefore, even if the lengths L1 and L2 of the front waist portion 20f and the side joint portions 40 are shortened, the pants-type absorbent article is less likely to slide down.
  • the napkin 1 is less likely to come into contact with the toilet and can be used hygienically. Moreover, since the napkin 1 has a shape similar to underwear, the appearance of the napkin 1 is also improved.
  • elastic skin-side sheets 22 and 23 are arranged on the waist member 20, so that the waist member 20 is provided with elasticity in the width direction.
  • stretchability may be imparted to the waist member 20 by arranging a plurality of thread-like elastic members (such as thread rubber) stretchable in the width direction at intervals in the vertical direction.
  • the lowest end of the absorbent core 11 is the lowest part of the product.
  • the length from the horizontal line LH (see FIG. 23) to the bottom end of the product is shorter than the length to the top end of the product; the first center C1 and the second center
  • the line La connecting C2 and the line Lb connecting the second center C2 and the third center C3 have the same slope. Just do it.
  • the front waistline portion 20f and the rear waistline portion 20b are not limited to being joined by the side joint portions 40 formed by welding or the like. and the hook material that engages with it, or the hook material and the female member of the hook-and-loop fastener may be engaged, and the hook material may be used as an engaging portion of the tab (engaging member) good.
  • 1 napkin (pants-type absorbent article) (this embodiment), 1a waist opening, 1b leg opening, 10 absorbent body, 11 absorbent core, 12 topsheet, 13 back seat, 13a liquid-impermeable sheet, 13b hydrophobic sheet, 14 leak-proof wall portion, 141 leak-proof wall elastic member (side elastic member), 20 waist member, 20f front waist portion, 20fA ventral contact portion 20fA, 20fB non-separation portion, 20fc overlapping region 20fe side edge, 20fup upper side edge, 20fdw lower edge, 20b rear waist part, 20EA low elastic part, elastic region, 20NA high elasticity area, low stretch area, 21 non-skin side sheet, 22 skin side sheet, 23 skin side sheet, 24 waist elastic member, 25 separating portion, 26 cut line, 27 leg elastic member, 30 tabs (engaging members, other engaging members), 30T protrusion, 31 base sheet, 32 engaging portion, 33 pressing portion, 40 side joint (joint) 50 absorber elastic member, CL center position

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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne un article absorbant de type culotte (1) pour un adulte, l'article absorbant de type culotte (1) comprenant : un corps absorbant (10); un élément torse (20) comprenant une partie torse avant (20f) et une partie torse arrière (20b) qui sont disposées sur le corps absorbant (10) à l'avant et à l'arrière de celui-ci, l'élément torse (20) étant étirable dans la direction gauche-droite; et des éléments de mise en prise (30) qui viennent en prise de façon amovible avec une surface côté non-peau de la partie torse avant (20f). La partie torse avant (20f) et la partie torse arrière (20b) sont jointes l'une à l'autre. Les éléments de mise en prise (30) sont reliés à la partie torse avant (20f). La partie torse avant (20f) a, dans une vue en plan, des sections fortement élastiques (20NA) au moins dans une partie d'une région de chevauchement qui chevauche les éléments de mise en prise (30) entre des bords d'extrémité opposés (20fe, 20fe) de la partie torse avant (20f) dans la direction gauche-droite, les sections fortement élastiques (20NA) ayant un module d'élasticité plus grand que celui des sections environnantes.
PCT/JP2022/022154 2021-06-29 2022-05-31 Article absorbant de type culotte WO2023276530A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280038960.XA CN117479910A (zh) 2021-06-29 2022-05-31 内裤型吸收性物品
KR1020237041291A KR20240023508A (ko) 2021-06-29 2022-05-31 팬츠형 흡수성 물품

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2021-108178 2021-06-29
JP2021-108179 2021-06-29
JP2021108178A JP2023005911A (ja) 2021-06-29 2021-06-29 パンツ型吸収性物品
JP2021108179A JP2023005912A (ja) 2021-06-29 2021-06-29 パンツ型吸収性物品
JP2021108180A JP2023005913A (ja) 2021-06-29 2021-06-29 パンツ型吸収性物品
JP2021-108180 2021-06-29

Publications (1)

Publication Number Publication Date
WO2023276530A1 true WO2023276530A1 (fr) 2023-01-05

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PCT/JP2022/022154 WO2023276530A1 (fr) 2021-06-29 2022-05-31 Article absorbant de type culotte

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KR (1) KR20240023508A (fr)
TW (1) TW202312958A (fr)
WO (1) WO2023276530A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05317356A (ja) * 1992-05-22 1993-12-03 Uni Charm Corp 使い捨てオムツ
JP2010148961A (ja) * 2010-03-31 2010-07-08 Kao Corp 使い捨ておむつ
JP2010194373A (ja) * 2006-11-30 2010-09-09 Daio Paper Corp パンツ型紙おむつ及びその製造方法
JP2015093168A (ja) * 2013-11-14 2015-05-18 花王株式会社 パンツ型使い捨ておむつ
JP2017046792A (ja) * 2015-08-31 2017-03-09 ユニ・チャーム株式会社 使い捨て着用物品
JP2019187928A (ja) * 2018-04-26 2019-10-31 日本製紙クレシア株式会社 軟便漏れ防止用吸収性パッド
JP2021083694A (ja) * 2019-11-27 2021-06-03 日本製紙クレシア株式会社 パンツ型吸収性物品

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101037279B1 (ko) 2009-06-05 2011-05-26 지엠 글로벌 테크놀러지 오퍼레이션스 엘엘씨 소형가정기기에 대한 연료공급시스템 및 이를 이용한 연료공급방법

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05317356A (ja) * 1992-05-22 1993-12-03 Uni Charm Corp 使い捨てオムツ
JP2010194373A (ja) * 2006-11-30 2010-09-09 Daio Paper Corp パンツ型紙おむつ及びその製造方法
JP2010148961A (ja) * 2010-03-31 2010-07-08 Kao Corp 使い捨ておむつ
JP2015093168A (ja) * 2013-11-14 2015-05-18 花王株式会社 パンツ型使い捨ておむつ
JP2017046792A (ja) * 2015-08-31 2017-03-09 ユニ・チャーム株式会社 使い捨て着用物品
JP2019187928A (ja) * 2018-04-26 2019-10-31 日本製紙クレシア株式会社 軟便漏れ防止用吸収性パッド
JP2021083694A (ja) * 2019-11-27 2021-06-03 日本製紙クレシア株式会社 パンツ型吸収性物品

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TW202312958A (zh) 2023-04-01

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