WO2022130810A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2022130810A1 WO2022130810A1 PCT/JP2021/040345 JP2021040345W WO2022130810A1 WO 2022130810 A1 WO2022130810 A1 WO 2022130810A1 JP 2021040345 W JP2021040345 W JP 2021040345W WO 2022130810 A1 WO2022130810 A1 WO 2022130810A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waist circumference
- absorbent article
- longitudinal direction
- force
- telescopic
- Prior art date
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 149
- 239000002250 absorbent Substances 0.000 title claims abstract description 149
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 230000008602 contraction Effects 0.000 description 214
- 210000001015 abdomen Anatomy 0.000 description 19
- 230000006866 deterioration Effects 0.000 description 14
- 230000008961 swelling Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 5
- 239000003086 colorant Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Images
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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/535—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
Definitions
- the present invention relates to an absorbent article.
- an elastic structure around the waist of the absorbent article there is one provided with an elongated elastic member provided along the elastic direction between the two sheet layers (for example, Patent Document 1).
- both ends of the stretchable member are fixed to two sheet layers, and the stretchable member has a non-fixed portion between the fixed ends and the stretchable member is not fixed to the two sheet layers.
- An example is disclosed having a (first stretchable member) and a stretchable member (second stretchable member) having a fixed portion in which a region overlapping the non-fixed portion in the width direction is fixed to the sheet layer. With such a configuration, deterioration of fit and wrinkles generated on the seat are suppressed.
- the present invention has been made in view of the above problems, and an object thereof is to control the position of the non-fixed portion in the longitudinal direction to a position where it is easy to fit and suppress deterioration of fit. To do.
- the main invention for achieving the above object is an absorbent article having a width direction, a longitudinal direction and a thickness direction, a pair of waist circumference portions, and an absorbent body having an absorbent core in a deployed state.
- At least one of the pair of waistline portions has a pair of seats and a plurality of stretchable members arranged between the pair of seats that expand and contract in the width direction, and each of the stretchable members has a stretchable member.
- the one end portion of the waist circumference portion is continuously arranged from one end portion in the width direction to the other end portion, and both ends in the width direction have a pair of end fixing portions fixed to the pair of sheets.
- the plurality of telescopic members include a first telescopic member having a non-fixed portion that is not fixed to the pair of sheets inside the end fixing portion in the width direction, and at least the non-fixed portion in the width direction.
- the region overlapping the portion has at least one second telescopic member having a fixing portion fixed to the pair of sheets, and in a natural state, one side adjacent to the first telescopic member in the longitudinal direction.
- the force required to extend the stretchable member on the side by a unit length in the width direction is the unit length of the stretchable member on the other side adjacent to the first stretchable member in the longitudinal direction. It is an absorbent article characterized by being different from the force required to stretch it.
- the present invention it is possible to control the position of the non-fixed portion in the longitudinal direction to a position where it is easy to fit, and to suppress deterioration of the fit.
- FIG. 2 is a schematic cross-sectional view taken along the line II of FIG.
- FIG. 2 is a schematic plan view of the ventral waist circumference portion 20 of the first embodiment. It is a figure which showed the 1st continuous telescopic member 231a and the 2nd continuous telescopic member 231b in the natural state.
- the absorbent article In the unfolded state, it is an absorbent article having a width direction, a longitudinal direction, and a thickness direction, and has a pair of waist circumference portions and an absorbent body having an absorbent core, and is among the pair of waist circumference portions. At least one has a pair of seats and a plurality of stretchable members arranged between the pair of seats that expand and contract in the width direction, and each stretchable member has the stretchable member in the width direction of the one waist circumference portion.
- the plurality of telescopic members have a pair of end fixing portions that are continuously arranged from one end to the other end and both ends in the width direction are fixed to the pair of sheets, and the plurality of telescopic members are in the width direction.
- the first telescopic member having a non-fixed portion not fixed to the pair of sheets and a region overlapping with at least the non-fixed portion in the width direction are formed on the inside of the end fixing portion in the pair of sheets.
- a second telescopic member having at least one fixed portion fixed to the first telescopic member, and in a natural state, the telescopic member on one side adjacent to the first telescopic member in the longitudinal direction is a unit in the width direction.
- the force required to extend the first stretchable member by the length is different from the force required to stretch the stretchable member on the other side adjacent to the first stretchable member by the unit length in the width direction.
- the fixing portion of the second elastic member suppresses the occurrence of swelling and deterioration of the fit in the waist circumference portion, and at the same time, the first one has a larger contraction force in the natural state. Since at least a part of the non-fixed portion of the elastic member is attracted, the position of the non-fixed portion in the longitudinal direction can be controlled to a position where it is easy to fit, and deterioration of fit can be suppressed.
- the pair of waist circumference portions are a ventral waist circumference portion and a dorsal waist circumference portion, and at least the ventral waist circumference portion of the pair of waist circumference portions has the first elastic member.
- the force of the elastic member adjacent to the inside of the first elastic member in the longitudinal direction is the force of the elastic member adjacent to the outer side of the first elastic member in the longitudinal direction. It is desirable to be larger than.
- At least a part of the non-fixed portion of the first telescopic member is located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- the non-fixed portion of the absorbent article straddles the center of the absorbent article in the width direction.
- the protruding part of the abdomen becomes a non-fixed part, so that it is easy to fit the abdomen.
- the length of the non-fixed portion in the width direction of the absorbent article is longer than the length of the absorbent core in the width direction in the extended state.
- a wider range than the absorbent core can be a non-fixed portion in the width direction, so that the abdomen can be fitted more easily.
- the first telescopic member is provided in the third region from the outside in the longitudinal direction when the ventral waist circumference portion is divided into four equal parts in the longitudinal direction in the extended state. Is desirable.
- the third region from the outside is located in the lower abdomen of the abdomen protruding when worn, so that the non-fixed portion is provided in the third region from the outside. , It becomes easier to fit the body.
- the absorbent core has a first basis weight portion, a second basis weight portion provided at an end portion in the longitudinal direction, and a second basis weight portion having a lower basis weight than the first basis weight portion.
- the ventral waist circumference portion is provided with a second basis weight area that overlaps with the second basis weight portion when viewed from the thickness direction, and at least a part of the second basis weight area. It is desirable that the non-fixed portion is provided in the.
- the second basis weight region is a region having lower rigidity than the central portion (first basis weight portion) of the absorbent core, the non-fixed portion of the first expansion / contraction member is more curved. It is easy to fit the body.
- the region (inner flap) between the end of the absorbent body and the end of the absorbent core is a region where the wearer tends to feel uncomfortable, so that the first elastic member is not fixed.
- the force of the elastic member adjacent to the first elastic member in the ventral waist circumference portion inward in the longitudinal direction is provided on the ventral waist circumference portion. It is desirable that the force is higher than the average of the above-mentioned forces.
- At least a part of the non-fixed portion of the first telescopic member is likely to be located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- the force of the first stretchable member and the stretchable member adjacent to the outside in the longitudinal direction in the ventral waist circumference portion is provided on the ventral waist circumference portion. It is desirable that the force is lower than the average of the above-mentioned forces.
- At least a part of the non-fixed portion of the first telescopic member is likely to be located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- the pitch spacing between the first stretchable member, the stretchable member adjacent to the first stretchable member inward in the longitudinal direction, and the first stretchable member in the ventral waist circumference portion, and the above-mentioned absorbent article is provided in the ventral waist circumference portion. It is desirable that it is smaller than the average of the pitch intervals of the telescopic members adjacent to each other for all of the plurality of telescopic members.
- the absorbent main body is fixed to the pair of waist circumference portions with an adhesive, and the non-fixed portion and the adhesive do not overlap when viewed in the thickness direction. It is desirable to have a portion.
- the adhesive portion has high rigidity, so that the non-fixed portion is more easily curved and fits the body easily by having a portion that does not overlap with the adhesive portion.
- the first telescopic member of the absorbent article is colored in a color different from that of the pair of sheets.
- the non-fixed portion of the first elastic member is conspicuous, it can be clearly seen that it is curved, and it is possible to give the wearer an improvement in visual fit.
- the pair of waist circumference portions are a ventral waist circumference portion and a dorsal waist circumference portion, and both the ventral waist circumference portion and the dorsal waist circumference portion have the first elastic member.
- the force of the telescopic member on one side adjacent to the first telescopic member in the longitudinal direction is adjacent to the first telescopic member in the longitudinal direction.
- the force of the stretchable member having the larger force among the stretchable member on the one side and the stretchable member on the other side in the ventral waist circumference portion is the force. It is desirable that the force is different from the force of the stretchable member having the larger force among the stretchable member on one side and the stretchable member on the other side in the dorsal waist circumference portion.
- the pair of waist circumference portions are a ventral waist circumference portion and a dorsal waist circumference portion, and both the ventral waist circumference portion and the dorsal waist circumference portion have the first elastic member.
- the force of the telescopic member on one side adjacent to the first telescopic member in the longitudinal direction is adjacent to the first telescopic member in the longitudinal direction.
- the force of the stretchable member having the smaller force among the stretchable member on the one side and the stretchable member on the other side in the ventral waist circumference portion is the force. It is desirable that the force is different from the force of the telescopic member having the smaller force among the telescopic member on one side and the telescopic member on the other side in the dorsal waist circumference portion.
- the stretchable member on one side adjacent to the first stretchable member in the longitudinal direction and the stretchable member on the other side adjacent to the first stretchable member in the longitudinal direction are desirable that the telescopic member having the larger force is the second telescopic member.
- the non-fixed portion is positioned on the second telescopic member side, and the movement of the non-fixed portion is restricted by the adjacent fixed portions, so that the displacement of the elastic member can be suppressed. It is possible to suppress the occurrence of swelling around the waist and deterioration of fit.
- the stretchable member on one side adjacent to the first stretchable member in the longitudinal direction and the stretchable member on the other side adjacent to the first stretchable member in the longitudinal direction. It is desirable that the telescopic member having the smaller force is the second telescopic member.
- the absorbent article according to the first embodiment the embodiment will be described by taking a pants-type disposable diaper for infants as an example.
- the absorbent article according to the first embodiment is not limited to the above, and can be applied to pants-type disposable diapers for adults, tape-type disposable diapers, sanitary shorts, and the like.
- FIG. 1 is a schematic perspective view of the pants-type disposable diaper 1 (hereinafter referred to as “diaper 1”) of the first embodiment.
- FIG. 2 is a schematic plan view of the diaper 1 in the expanded state and the extended state.
- FIG. 3 is a schematic cross-sectional view taken along the line II of FIG.
- the "deployed state" in the diaper 1 is a state in which the locking portions 40 described later are disjointed, the pair of waist circumference portions 20 and 30 (described later) are separated, and the diaper 1 is opened in the longitudinal direction.
- the "extended state" in the diaper 1 is a state in which the diaper 1 is extended without wrinkles, and the dimensions of each member (for example, waist circumferences 20, 30, etc.) constituting the diaper 1 match the dimensions of the individual member. Or it is in a stretched state until it reaches a length close to it.
- the non-extended state in which each elastic body naturally contracts and wrinkles or the like are formed in each member is referred to as a "natural state".
- the diaper 1 has a width direction, a vertical direction, and a front-back direction in the pants-shaped state shown in FIG. 1, and a waist circumference opening BH and a pair of leg circumference openings LH are formed.
- the waistline side is the upper side and the inseam side is the lower side.
- the ventral side of the wearer is the front side and the dorsal side of the wearer is the posterior side.
- the direction in which the materials constituting the diaper 1 are laminated is referred to as the thickness direction, the side in the thickness direction that contacts the wearer is the skin side, and the side that does not contact the wearer is non. On the skin side.
- the diaper 1 has a longitudinal direction, a width direction, and a thickness direction that intersect each other.
- the longitudinal direction is a direction along the vertical direction
- the width direction is the same direction as the width direction in the pants-shaped state of FIG.
- the diaper 1 has a pair of waist circumference portions 20, 30 and an absorbent main body 10 including an absorbent core 11A.
- the pair of waist circumference portions 20 and 30 are a ventral waist circumference portion 20 and a dorsal waist circumference portion 30, and the one that is applied to the ventral side portion of the wearer is the ventral waist circumference portion 20, and is applied to the back side portion of the wearer. Let the thing be the dorsal waist circumference portion 30.
- the diaper 1 has a width direction and a longitudinal direction in the unfolded state shown in FIG. 2, and is located on one side (ventral side) of the absorbent body 10 in the longitudinal direction at the center of the ventral waist circumference portion 20 in the width direction. ) Is arranged, and the other end (dorsal side) of the absorbent body 10 in the longitudinal direction is arranged in the central portion of the dorsal waist circumference portion 30 in the width direction.
- the absorbent body 10 is folded in half at substantially the center in the longitudinal direction thereof, and both side portions in the width direction of the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are engaged in the pair of locking portions 40.
- the diaper 1 in the pants-type state shown in FIG. 1 is obtained.
- the longitudinal direction of the unfolded diaper 1 is along the vertical direction of the pants-shaped diaper 1. Further, as a locking method in the locking portion 40, welding, joining with an adhesive, or the like can be exemplified.
- the absorbent body 10 is arranged on the absorbent body 11, the liquid-permeable top sheet 12 arranged on the skin side of the absorbent body 11, and on the non-skin side of the absorbent body 11. It has a liquid-impermeable back sheet 13 and an exterior sheet 14 arranged on the non-skin side of the back sheet 13.
- the absorbent main body 10 is joined to the pair of waist circumference portions 20 and 30 with the adhesive Ab shown in FIG. That is, the absorbent main body 10 is fixed to the pair of waist circumference portions 20, 30 with the adhesive Ab.
- the adhesive Ab is continuous from one end to the other end in the width direction of the absorbent body 10, and is intermittently provided in the longitudinal direction as shown in FIG. 3 (so-called comb shape). Further, the adhesive Ab may be continuously provided from one end to the other end in the longitudinal direction of the absorbent main body 10 and may be provided intermittently in the width direction.
- the absorber 11 has an absorbent core 11A that absorbs and retains excrement such as urine, and a liquid-permeable core wrap sheet 11B that covers the absorbent core 11A.
- a liquid absorbent fiber such as pulp containing a highly absorbent polymer (SAP) formed into a predetermined shape can be exemplified.
- SAP highly absorbent polymer
- the absorbent core 11A may not be covered with the core wrap sheet 11B.
- the absorbent core 11A according to the present embodiment is provided at the first basis weight portion and the end portion in the longitudinal direction, and the second basis weight portion having a lower basis weight than the first basis weight portion (right in FIG. 4). It has a downward diagonal line).
- the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are a flexible skin side sheet 21, 31 such as a non-woven fabric, a non-skin side sheet 22, 32 (a pair of sheets), and a skin side, respectively. It has a plurality of waist-circling elastic members 23, 33 (hereinafter, also simply referred to as elastic members) that are arranged between the sheets 21 and 31 and the non-skin side sheets 22 and 32 and expand and contract in the width direction.
- the plurality of waistline elastic members 23, 33 are arranged side by side at intervals in the vertical direction (longitudinal direction) between the skin side sheets 21, 31 and the non-skin side sheets 22, 32, and extend in the width direction. It is fixed in the state of being fixed.
- the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 expand and contract in the width direction to fit the wearer's waist circumference portion.
- the waistline elastic members 23 and 33 include thread-like elastic members such as rubber threads and elongated elastic sheets.
- the configurations of the waist circumference portions 20 and 30 are not limited to those shown in the figure, and may be, for example, a configuration of three or more layers in which different sheets are laminated on a pair of sheets, or one sheet is bent. It may be configured as a pair of sheets.
- the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are separated, and the so-called ventral waist circumference portion 20, the dorsal waist circumference portion 30, and the absorbent main body 10 are provided.
- the three-piece type is illustrated, but it is not limited to this.
- the ventral waist circumference 20 and the dorsal waist circumference 30 are formed of one continuous member via the lower crotch, and the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 are integrated with the exterior member and absorbed. It may be a so-called two-piece type pants-type disposable diaper having two members of the sex body.
- FIG. 4 is a schematic plan view of the ventral waist circumference portion 20 of the first embodiment.
- the ventral waist circumference portion 20 has a stretchable member 23 arranged in the skin side sheet 21 and the non-skin side sheet 22 (a pair of sheets 21 and 22) and expands and contracts in the width direction.
- the pair of waist circumference portions 20 and 30 it suffices if at least one of the pair of waist circumference portions 20 and 30 is engaged. That is, at least one of the pair of waist circumference portions 20, 30 has a pair of seats and a plurality of stretchable members arranged between the pair of seats and stretchable in the width direction.
- the telescopic member 23 included in the ventral waist circumference portion 20 is a "plurality of continuous telescopic members 231 (plurality)" arranged continuously from one end to the other end in the width direction of the waist circumference portion 20. (Corresponding to the expansion / contraction member) ”and“ a plurality of discontinuous expansion / contraction members 232 ”arranged discontinuously in the width direction.
- the discontinuous telescopic member 232 is arranged below the continuous telescopic member 231.
- Each continuous telescopic member 231 has a "pair of end fixing portions 50" whose both ends in the width direction are fixed to the skin side sheet 21 and the non-skin side sheet 22. That is, the continuous expansion / contraction member 231 is continuously arranged from one end to the other end of the waist circumference portion 20 in the width direction, and both ends in the width direction are fixed to the pair of sheets 21 and 22. It has a fixing portion 50.
- the fixing method in the end fixing portion 50 is not particularly limited, and for example, fixing with an adhesive applied to the continuous expansion / contraction member 231 or fixing with an adhesive applied to the inner side surfaces of the pair of sheets 21 and 22.
- a well-known method such as a method of fixing with a pair of welded portions crossing the continuous expansion / contraction member 231 can be exemplified.
- the pair of end fixing portions 50 are arranged inside the pair of locking portions 40 in the width direction separately from the pair of locking portions 40.
- the pair of locking portions 40 may be used as a pair of end fixing portions. That is, the diaper 1 does not have to have the end fixing portion 50 shown in FIG.
- the plurality of continuous expansion / contraction members 231 have at least one "first continuous expansion / contraction member 231a (corresponding to the first expansion / contraction member)" and "second continuous expansion / contraction member 231b (corresponding to the second expansion / contraction member)”. (That is, in the first embodiment, at least the ventral waist circumference portion 20 of the pair of waist circumference portions 20 and 30 has the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b).
- first continuous expansion / contraction members 231 are provided, and the first continuous expansion / contraction member 231a of the continuous expansion / contraction members 231 is the second from the inner side (inseam side) (lower side in the vertical direction) in the longitudinal direction.
- the second continuous telescopic member 231b is arranged first and third from the inside in the longitudinal direction.
- the first continuous expansion / contraction member 231a has a "non-fixing portion 51" that is not fixed to the pair of sheets 21 and 22 inside the end fixing portion 50 in the width direction. That is, the plurality of continuous expansion / contraction members 231 have a first continuous expansion / contraction member 231a having a non-fixing portion 51 that is not fixed to the pair of sheets 21, 22 inside the end fixing portion 50 in the width direction.
- the non-fixed portion 51 can move in the longitudinal direction, so that the non-fixed portion 51 can be positioned at a position more fitted to the shape of the body when worn. Therefore, it can change to a shape along the bulge of the abdomen, that is, a shape curved in the longitudinal direction such as a traverse. Therefore, for example, the first continuous expansion / contraction member 231a traverses as compared with the case where the non-fixing portion 51 is not provided (when the waist circumference expansion / contraction member 23 is fixed to the pair of seats 21 and 22 over almost the entire area). Since the above effects are exhibited, the fit of the waist circumference portion 20 can be improved.
- a second continuous expansion / contraction member 231b having a fixed portion 52 is provided to suppress the movement of the non-fixed portion 51. Details will be described later.
- the second continuous telescopic member 231b has at least a "fixed portion 52" in which a region overlapping the non-fixed portion 51 in the width direction is fixed to the pair of sheets 21 and 22. That is, the plurality of continuous expansion / contraction members 231 have a second continuous expansion / contraction member 231b having a fixing portion 52 fixed to a pair of sheets 21 and 22 in a region overlapping with at least the non-fixed portion 51 in the width direction.
- the fixing portion 52 may be integrally formed with the end fixing portions 50, 50, or may be formed separately from the end fixing portion 50.
- the non-fixing portion 51 is continuously arranged from the end fixing portion 50 on one side in the width direction to the end fixing portion 50 on the other side (see FIG. 4).
- the fixed portion 52 is continuously arranged from the end fixing portion 50 on one side in the width direction to the end fixing portion 50 on the other side so as to correspond to the position where the non-fixing portion 51 is provided. (See Fig. 4).
- the non-fixing portion 51 of the first continuous expansion / contraction member 231a may be arranged only in a part of the region between the end fixing portions 50, 50.
- the fixing portion 52 of the second continuous expansion / contraction member 231b may be provided at least in the portion where the non-fixing portion 51 is provided in the width direction.
- At least one first continuous expansion / contraction member 231a is arranged between two second continuous expansion / contraction members 231b and 231b arranged adjacent to each other in the longitudinal direction (vertical direction). .. That is, in the longitudinal direction, the non-fixed portion 51 of the first continuous telescopic member 231a has a portion arranged so as to be vertically sandwiched by the fixed portions 52, 52 of the second continuous telescopic member 231b. In such a portion, even if the first continuous expansion / contraction member 231a (non-fixed portion 51) is displaced in the vertical direction, the fixed portions 52, 52 arranged so as to sandwich the upper and lower portions thereof are used in the vertical direction.
- the non-fixed portion 51 of the first continuous expansion / contraction member 231a is less likely to be largely displaced in the vertical direction, causing swelling in the waist circumference portion 20, and the displacement of the continuous expansion / contraction member 231 causes the fitability of the waist circumference portion 20 to be improved. It is possible to suppress deterioration more efficiently.
- the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are alternately arranged side by side in the vertical direction (longitudinal direction).
- the vertical direction there is a portion in which the first continuous telescopic member 231a is arranged between the two adjacent second continuous telescopic members 231b and 231b, and such a portion repeats in the longitudinal direction. It is provided.
- the non-fixed portion 51 of the first continuous telescopic member 231a is less likely to be largely displaced in the vertical direction, the waistline portion 20 is bulged, or the continuous telescopic member is formed.
- the fixed portion 52 and the non-fixed portion 51 are alternately arranged in the vertical direction, when the waist circumference portion 20 contracts in the width direction when the diaper 1 is worn, the surface of the waist circumference portion 20 has a clean shape. Wrinkles are likely to form. That is, the aesthetic appearance of the diaper 1 can be improved by regularly arranging the wrinkles having the same shape.
- the non-fixing portion 51 does not necessarily have to be provided in the entire space between the end fixing portions 50, 50 on both sides in the width direction, but it is desirable that the non-fixing portion 51 straddles at least the center of the diaper 1 in the width direction. As a result, the protruding portion of the abdomen becomes the non-fixed portion 51, so that the abdomen can be easily fitted.
- the length L51 in the width direction of the non-fixed portion 51 (the total length in the width direction of the non-fixed portion 51 provided for the first continuous expansion / contraction member 231a) is the width of the absorbent core 11A. Longer than length R1 in the direction. As a result, the non-fixed portion 51 can be formed in a wider range than the absorbent core 11A in the width direction, so that the abdomen can be more easily fitted.
- the length L51 of the non-fixed portion 51 in the width direction is longer than the length W10 of the absorbent body 10 in the width direction.
- the non-fixed portion 51 can be formed in a wider range than the absorbent main body 10 in the width direction, so that the non-fixed portion 51 can be more easily fitted to the abdomen.
- the ventral waist circumference portion 20 is divided into four equal parts in the longitudinal direction (A1, A2, A3, and A4 in FIG. 4), which is the third from the outside (girth circumference side) in the longitudinal direction.
- the first continuous expansion / contraction member 231a is provided in the region (region of A3).
- the absorbent core 11A has a second basis weight portion (sloping right-down diagonal portion in FIG. 4) which is a low basis weight portion, and the ventral waist circumference portion 20 has a thickness direction.
- a second basis weight area is provided that overlaps with the second basis weight portion (the downward-sloping diagonal portion in FIG. 4).
- a non-fixed portion 51 (first continuous expansion / contraction member 231a) is provided in at least a part of the second basis weight region.
- the second basis weight region is a region having lower rigidity than the central portion (first basis weight portion) of the absorbent core 11A, the non-fixed portion 51 of the first continuous expansion / contraction member 231a is curved in the longitudinal direction. It is easy to do and it is easy to fit the body.
- the average of the pitch intervals of the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b is the pitch of the plurality of continuous expansion / contraction members 231. It is smaller than the average of the intervals (the average of L1 to L7 in FIG. 4). That is, in the extended state, the pitch interval (L1) between the first continuous expansion / contraction member 231a in the ventral waist circumference 20, the second continuous expansion / contraction member 231b adjacent to the inside in the longitudinal direction, and the first expansion / contraction member 231a, and the ventral side.
- the average of the pitch spacing (L2) between the first continuous expansion / contraction member 231a, the second continuous expansion / contraction member 231b adjacent to the outside in the longitudinal direction, and the first expansion / contraction member 231a in the waist circumference portion 20 is the ventral waist circumference portion 20. It is smaller than the average of the pitch intervals (L1 to L7) of the telescopic members adjacent to each other for all of the plurality of continuous telescopic members 231 provided. As a result, it is possible to suppress the swelling between the second continuous expansion / contraction member 231b adjacent to the first continuous expansion / contraction member 231a.
- the adhesive Ab is used for joining the absorbent main body 10 and the pair of sheets 21 and 22, but as shown in FIG. 3, the non-fixed portion 51 is viewed in the thickness direction. It has a portion where the (first continuous expansion / contraction member 231a) and the adhesive Ab do not overlap. Since the adhesive Ab portion has high rigidity, the non-fixed portion 51 of the first continuous expansion / contraction member 231a is more easily curved and fits the body easily by having a portion that does not overlap with such a portion.
- the first continuous expansion / contraction member 231a is colored in a color different from that of the pair of sheets 21 and 22.
- the non-fixed portion 51 of the first continuous telescopic member 231a is conspicuous, so that it can be clearly seen that it is curved, and it is possible to give the wearer an improvement in visual fit.
- the continuous expansion / contraction member 231 having the non-fixed portion 51 may be colored.
- the different colors are not limited to the colors as long as the difference in color can be visually identified in a bright place, for example.
- the waist circumference portion 20 has a discontinuous telescopic member 232 below the continuous telescopic member 231 arranged at the lowest position (inside in the longitudinal direction).
- the discontinuous telescopic member 232 is discontinuous in at least a part of the region R1 that overlaps with the absorbent core 11A in the width direction. That is, a part of the waist-rotating stretchable member 23 that overlaps with the absorbent main body 10 in the longitudinal direction has a non-stretchable region (discontinuous portion) in the central portion in the width direction. Therefore, the shrinkage of the absorbent core 11A due to the waist circumference expansion / contraction member 23 can be suppressed, and the flatness of the absorbent core 11A can be ensured.
- the discontinuous telescopic member 232 may also have an end fixing portion 55 and a non-fixing portion 56.
- the end fixing portion 55 is a portion where both ends in the width direction in the continuous portion of the discontinuous stretchable member 232 are fixed to the pair of sheets 21 and 22.
- the non-fixing portion 56 is a portion where the discontinuous expansion / contraction member 232 is not fixed to the pair of sheets 21 and 22 between the end fixing portions 55.
- a pair of end fixing portions 55, 55 are arranged at one end in the width direction of the waist circumference portion 20 and one end in the width direction of the absorbent core 11A.
- the non-fixed portion 56 is arranged between them.
- a pair of end fixing portions 55, 55 are arranged at the other end in the width direction of the absorbent core 11A and the other end in the width direction of the waist circumference portion 20, and the non-fixing portion 56 is between them. Have been placed.
- the discontinuous telescopic member 232 also has the non-fixed portion 56, so that the flexibility of the waist circumference portion 20 is improved.
- the present invention is not limited to the above, and the discontinuous expansion / contraction member 232 may not have the non-fixed portion 56.
- a part of the discontinuous expansion / contraction member 232 may be fixed in the region between the pair of end fixing portions 55, 55. By doing so, when the diaper 1 is worn, the waistline portion 20 can be easily fitted in the region between the pair of end fixing portions 55, 55, and it is easy to prevent the wearer's skin from floating. ..
- the plurality of discontinuous telescopic members 232, 232 ... Arranged in the vertical direction, those having a fixing portion in the region between the pair of end fixing portions 55, 55 and those having no fixing portion alternately alternate. It may be arranged. In this case, both flexibility and fit in the area can be achieved.
- the contraction force of the continuous expansion / contraction member 231 will be described.
- the "shrinking force” in the present embodiment means "a force required to extend the stretchable member by a unit length in the width direction in a natural state”.
- the continuous expansion / contraction members 231 do not all have the same contraction force.
- the two second continuous expansion / contraction members 231b and 231b adjacent to the first continuous expansion / contraction member 231a in the longitudinal direction have a contraction force. different. That is, in the natural state, the force (contraction force) required to extend the second continuous expansion / contraction member 231b on one side (for example, the outer side) adjacent to the first continuous expansion / contraction member 231a in the longitudinal direction by a unit length in the width direction.
- FIG. 5 is a diagram showing a first continuous expansion / contraction member 231a and a second continuous expansion / contraction member 231b in a natural state.
- the inner second continuous expansion / contraction member 231b in the longitudinal direction is referred to as the inner second continuous expansion / contraction member 231b1
- the outer second continuous expansion / contraction member 231b in the longitudinal direction is referred to as the outer second continuous expansion / contraction member 231b2.
- the inner second continuous expansion / contraction member 231b1 and the outer second continuous expansion / contraction member 231b2 have different contraction forces.
- the fixing portion 52 suppresses the occurrence of swelling and deterioration of the fit in the waist circumference portion 20, and in the natural state, the first continuous expansion / contraction member 231a has a larger contraction force. Since at least a part of the non-fixed portion 51 is attracted, the position of the non-fixed portion 51 in the longitudinal direction can be controlled to a position where it is easy to fit, and deterioration of fit can be suppressed.
- a method of setting the size of the contraction force of the stretchable member 23 a method of setting the size according to the expansion ratio (how much the same stretchable member is fixed in a stretched state), the count of the stretchable member (for example, the same material, etc.) If it is a shape, a method of providing large or small depending on the size of the cross-sectional area) can be mentioned.
- the inner second continuous expansion / contraction member 231b1 has a larger contraction force than the outer second continuous expansion / contraction member 231b2.
- the contraction force of the inner second continuous elastic member 231b1 adjacent to the first continuous elastic member 231a in the longitudinal direction is adjacent to the outer side in the longitudinal direction with the first continuous elastic member 231a. It is larger than the contraction force of the matching outer second continuous expansion / contraction member 231b2.
- the first continuous expansion / contraction member 231a is in a more natural state than the central position CL which is the center in the longitudinal direction of the inner second continuous expansion / contraction member 231b1 and the outer second continuous expansion / contraction member 231b2. Will be located inside in the longitudinal direction. That is, since the position corresponds to the protrusion of the wearer's abdomen, the position of the non-fixed portion in the longitudinal direction can be controlled to a position where the wearer can easily fit the non-fixed portion at the time of wearing, and deterioration of fit is suppressed. be able to.
- the contraction force of the inner second continuous expansion / contraction member 231b1 is higher than that of the continuous expansion / contraction member 231. That is, the contraction force of the first continuous telescopic member 231a in the ventral waist circumference 20 and the inner second continuous telescopic member 231b1 adjacent to each other in the longitudinal direction is applied to the plurality of continuous telescopic members 231 provided in the ventral waist circumference 20. The highest contraction force.
- at least a part of the non-fixed portion 51 of the first continuous telescopic member 231a is likely to be located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- FIG. 6 is a schematic plan view of the dorsal waist circumference portion 30 of the second embodiment.
- the dorsal waist circumference portion 30 is provided with the first continuous telescopic member 331a and the second continuous telescopic member 331b. That is, both the ventral waist circumference portion 20 and the dorsal waist circumference portion 30 have the first continuous expansion / contraction members 231a, 331a and the second continuous expansion / contraction members 231b, 331b.
- the continuous expansion / contraction members 331 in the second embodiment do not all have the same contraction force.
- the two second continuous expansion / contraction members 331b and 331b adjacent to the first continuous expansion / contraction member 331a in the longitudinal direction contract.
- the power is different. That is, in both the ventral waist circumference portion 20 and the dorsal waist circumference portion 30, the contraction force of the first continuous expansion / contraction members 231a, 331a and the second continuous expansion / contraction members 231b, 331b on one side (for example, the outer side) adjacent to each other in the longitudinal direction is applied. , It is different from the contraction force of the second continuous expansion / contraction member 231b, 331b on the other side (for example, inside) adjacent to the first continuous expansion / contraction member 231a, 331a in the longitudinal direction.
- the contraction force of the second continuous expansion / contraction member 231b having the larger contraction force among the second continuous expansion / contraction members 231b of the ventral waist circumference portion 20 is the contraction force of the second continuous expansion / contraction member 331b of the dorsal waist circumference portion 30. It is different from the contraction force of the larger second continuous expansion / contraction member 331b. That is, of the second continuous expansion / contraction member 231b on one side (for example, the outer side) and the second continuous expansion / contraction member 231b on the other side (for example, the inner side) in the ventral waist circumference portion 20, the second continuous expansion / contraction member 231b having the larger contraction force.
- the contraction force of the dorsal waist circumference 30 is the second continuous of the second continuous expansion / contraction member 331b on one side (for example, the outer side) and the second continuous expansion / contraction member 331b on the other side (for example, the inner side), whichever has the larger contraction force. It is different from the contraction force of the expansion / contraction member 331b.
- the contraction force of the second continuous expansion / contraction member 231b of the second continuous expansion / contraction member 231b of the ventral waist circumference portion 20 is also smaller than that of the second continuous expansion / contraction member 331b of the dorsal waist circumference portion 30. It is different from the contraction force of the second continuous expansion / contraction member 331b. That is, of the second continuous expansion / contraction member 231b on one side (for example, the outer side) and the second continuous expansion / contraction member 231b on the other side (for example, the inner side) in the ventral waist circumference portion 20, the second continuous expansion / contraction member 231b having the smaller contraction force.
- the contraction force of the dorsal waist circumference 30 is the second continuous of the second continuous expansion / contraction member 331b on one side (for example, the outer side) and the second continuous expansion / contraction member 331b on the other side (for example, the inner side), whichever has the smaller contraction force. It is different from the contraction force of the expansion / contraction member 331b.
- the contractile forces of the second continuous elastic members 231b and 331b are appropriately changed between the ventral waist circumference portion 20 and the dorsal waist circumference portion 30, respectively, to be more appropriate for the body part.
- the contraction force makes it easier to fit the body.
- the arrangement of the first continuous expansion / contraction member 231a (second from the inside) and the arrangement of the second continuous expansion / contraction member 231b (first and third from the inside) of the ventral waist circumference portion 20 are also different. This also makes it easier to fit the body by arranging the first continuous telescopic members 231a, 331a and the second continuous telescopic members 231b, 331b at appropriate positions according to the shapes of the ventral side and the dorsal side. There is.
- FIG. 7 is a view corresponding to FIG. 4, and is a schematic plan view of the ventral waist circumference portion 120 of the third embodiment. In the following, only the differences from the first embodiment will be described.
- the difference between the first embodiment and the third embodiment is, as shown in FIG. 7, the arrangement position of the first continuous telescopic member 231a and the second continuous telescopic member 231b in the longitudinal direction.
- the first continuous telescopic member 231a is arranged second from the inside (inseam side) (lower side in the vertical direction) in the longitudinal direction
- the second continuous telescopic member 231b is arranged first from the inside in the longitudinal direction.
- the first continuous expansion / contraction member 231a is arranged fourth from the inside in the longitudinal direction
- the second continuous expansion / contraction member 231b is arranged third and fourth from the inside in the longitudinal direction. is doing.
- the first continuous expansion / contraction member 231a is not fixed in the region between the outer end 10eu of the absorbent body 10 and the outer end 11Aeu of the absorbent core 11A in the longitudinal direction.
- a portion 51 is provided. That is, among the regions of the ventral waist circumference portion 20 that overlap with the absorbent main body 10 in the thickness direction, the outer end 10 eu of the absorbent main body 10 and the outer end 11 Aeu of the absorbent core 11A in the longitudinal direction.
- a non-fixed portion 51 (first continuous expansion / contraction member 231a) is provided in the area between the two.
- the region (inner flap) between the outer end 10eu of the absorbent body 10 and the outer end 11Aeu of the absorbent core 11A is a region where the wearer tends to feel a sense of discomfort, the non-fixed portion 51 of the first continuous elastic member 231a By providing the above to improve the fit, the wearer is less likely to feel uncomfortable.
- the contraction force of the second continuous expansion / contraction member 231b located third from the inside in the longitudinal direction is larger than the average of the contraction forces of the eight continuous expansion / contraction members 231. That is, the contraction force of the first continuous expansion / contraction member 231a in the ventral waist circumference 20 and the second continuous expansion / contraction member 231b adjacent to the inside in the longitudinal direction causes the contraction of the plurality of continuous expansion / contraction members 231 provided in the ventral waist circumference 20. Higher than the average force.
- at least a part of the non-fixed portion 51 of the first continuous telescopic member 231a is likely to be located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- the contraction force of the second continuous expansion / contraction member 231b located fifth from the inside in the longitudinal direction is smaller than the average of the contraction forces of the eight continuous expansion / contraction members 231. That is, the contraction force of the first continuous expansion / contraction member 231a in the ventral waist circumference 20 and the second continuous expansion / contraction member 231b adjacent to the outside in the longitudinal direction causes the contraction of the plurality of continuous expansion / contraction members 231 provided in the ventral waist circumference 20. Lower than average force.
- at least a part of the non-fixed portion 51 of the first continuous telescopic member 231a is likely to be located inside (inseam side), so that it is easy to fit to the abdomen when worn.
- FIG. 8 is a view corresponding to FIG. 4, and is a schematic plan view of the ventral waist circumference portion 220 of the fourth embodiment. In the following, only the differences from the first embodiment will be described.
- the absorbent core 11A has a notch (lower right diagonal portion in FIG. 8). That is, the absorbent core 11A has a notch at the end in the longitudinal direction.
- the ventral waist circumference portion 20 is provided with a notch region that overlaps with the notch (the downward-sloping diagonal portion in FIG. 8) when viewed from the thickness direction, and at least a part of the notch region is not.
- a fixing portion 51 (first continuous expansion / contraction member 231a) is provided. Since the notched region has a lower rigidity than the absorbent core 11A, the non-fixed portion 51 of the first continuous expansion / contraction member 231a is more likely to be curved and fit the body more easily.
- the second continuous expansion / contraction member 231b is provided on both sides of the first continuous expansion / contraction member 231a in the longitudinal direction, but the present invention is not limited to this.
- the continuous expansion / contraction member 231 having a larger contraction force may be the second continuous expansion / contraction member 231b, or the continuous expansion / contraction member 231 having a smaller contraction force may be the second continuous expansion / contraction member 231b. good.
- the non-fixed portion 51 is positioned toward the second continuous telescopic member 231b, and the movement of the non-fixed portion 51 is restricted by the adjacent fixed portions 52, so that the misalignment of the non-fixed portion 51 is suppressed. This can prevent the occurrence of swelling in the ventral waist circumference 20 and the deterioration of the fit.
- one first continuous expansion / contraction member 231a, 331a and two second continuous expansion / contraction members 231b, 331b are provided, but the quantity is not limited to this, and for example, the first continuous expansion / contraction member is provided.
- Two or more elastic members 231a and 331a may be provided.
- first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are provided alternately in the longitudinal direction, but the present invention is not limited to this, and for example, the first continuous expansion / contraction member 231a is provided in the longitudinal direction.
- the second continuous expansion / contraction member 231b may be continuously provided in the longitudinal direction.
- the first continuous expansion / contraction member 231a and the second continuous expansion / contraction member 231b are one expansion / contraction member, but the present invention is not limited to this. (Hereinafter, what is regarded as this one is referred to as a "group").
- One group is composed of 2 to 5 first continuous expansion / contraction members 231a or second continuous expansion / contraction members 231b, and the adjacent pitch intervals in the longitudinal direction are 2 to 8 mm, and the width in the longitudinal direction is It is desirable that it is 15 mm or less.
- the absorbent core 11A has a first basis weight portion and a second basis weight portion provided at the end portion in the longitudinal direction and having a lower basis weight than the first basis weight portion.
- the basis weight is not limited to this, and for example, the basis weight of the absorbent core 11A may be about the same as a whole (only the first basis weight portion may be used).
- the adhesive Ab is applied to the pair of waistline portions 20 and 30 in a comb shape to fix the absorbent main body 10, but the present invention is not limited to this, and for example, solid coating may be used. It may be a bonding such as welding instead of an adhesive.
- Pants-type disposable diaper (absorbent article), 10 Absorbent body, 10 eu outer end, 11 Absorbent, 11A Absorbent Core, 11Aeu Outer Edge, 11B Core Wrap Sheet, 12 Top Sheet, 13 Back Sheet, 14 Exterior Sheet, 20 Ventral girth (girth), 30 Dorsal girth (girth), 21,31 Skin side sheet (sheet), 22, 32 Non-skin side sheet (sheet), 23,33 Girth elastic member, 231 and 331 Continuous telescopic member (expandable member), 231a, 331a 1st continuous expansion / contraction member (1st expansion / contraction member), 231b, 331b, 2nd continuous expansion / contraction member (2nd expansion / contraction member), 231b1 Inner second continuous telescopic member, 231b2 Outer second continuous telescopic member, 232, 332 discontinuous telescopic member, 40 Locking part, 50, 55 end fixing part, 51,56 non-fixed part, 52 Fixed part, 120 ventral girth, 220 ventral
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
以下、第1実施形態に係る吸収性物品として、乳幼児用のパンツ型使い捨ておむつを例に挙げて実施形態を説明する。ただし、第1実施形態に係る吸収性物品は、上記に限らず、大人用のパンツ型使い捨ておむつや、テープ型の使い捨ておむつ、生理用ショーツ等にも適用できる。
図1は、第1実施形態のパンツ型使い捨ておむつ1(以下「おむつ1」)の概略斜視図である。図2は、展開状態かつ伸長状態のおむつ1の概略平面図である。図3は、図2のII線での概略断面図である。おむつ1における「展開状態」とは、後述する係止部40の接合を解いて、一対の胴回り部20,30(後述)を分離し、おむつ1を長手方向に開いた状態である。また、おむつ1における「伸長状態」とは、おむつ1を皺なく伸長させた状態であり、おむつ1を構成する各部材(例えば胴回り部20,30等)の寸法がその部材単体の寸法と一致又はそれに近い長さになるまで伸長した状態である。そして、非伸長状態であって、各弾性体が自然に収縮して各部材に皺等が生じている状態のことを「自然状態」という。
図4は、第1実施形態の腹側胴回り部20の概略平面図である。第1実施形態においては、腹側胴回り部20が肌側シート21及び非肌側シート22(一対のシート21,22)間に配置された幅方向に伸縮する伸縮部材23を有する場合を説明するが、一対の胴回り部20,30のうちの少なくとも一方がかかる構成であれば良い。つまり、一対の胴回り部20,30のうち少なくとも一方は、一対のシートと、一対のシート間に配置された幅方向に伸縮する複数の伸縮部材を有する。
次に、連続伸縮部材231の収縮力について説明する。なお、本実施形態における「収縮力」とは、「自然状態において伸縮部材を幅方向に単位長さだけ伸長させるのに必要な力」のことをいう。
次に、第2実施形態について説明する。図6は、第2実施形態の背側胴回り部30の概略平面図である。なお、以下では第1実施形態との相違点のみを説明する。
第2実施形態における第1実施形態の相違点は、背側胴回り部30に第1連続伸縮部材331aと第2連続伸縮部材331bが設けられている点である。つまり、腹側胴回り部20と背側胴回り部30が共に、第1連続伸縮部材231a,331aと第2連続伸縮部材231b,331bを有している。
次に、第3実施形態について説明する。図7は、図4に対応する図であり、第3実施形態の腹側胴回り部120の概略平面図である。なお、以下では第1実施形態との相違点のみを説明する。
次に、第4実施形態について説明する。図8は、図4に対応する図であり、第4実施形態の腹側胴回り部220の概略平面図である。なお、以下では第1実施形態との相違点のみを説明する。
上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更・改良され得ると共に、本発明には、その等価物が含まれることは言うまでもない。
10 吸収性本体、10eu 外端、
11 吸収体、11A 吸収性コア、11Aeu 外端、11B コアラップシート、12 トップシート、13 バックシート、14 外装シート、
20 腹側胴回り部(胴回り部)、30 背側胴回り部(胴回り部)、
21,31 肌側シート(シート)、
22,32 非肌側シート(シート)、
23,33 胴回り伸縮部材、
231, 331 連続伸縮部材(伸縮部材)、
231a, 331a 第1連続伸縮部材(第1伸縮部材)、
231b,331b,第2連続伸縮部材(第2伸縮部材)、
231b1 内側第2連続伸縮部材、231b2 外側第2連続伸縮部材、
232, 332 非連続伸縮部材、
40 係止部、
50,55 端部固定部、
51,56 非固定部、
52 固定部、
120 腹側胴回り部、220 腹側胴回り部、
Ab 接着剤、CL 中央位置、BH 胴回り開口部、LH 脚周り開口部
Claims (16)
- 展開状態において、幅方向と長手方向と厚さ方向とを有し、
一対の胴回り部と、吸収性コアを備える吸収性本体とを有する吸収性物品であって、
前記一対の胴回り部のうちの少なくとも一方は、一対のシートと、前記一対のシート間に配置された前記幅方向に伸縮する複数の伸縮部材とを有し、
各前記伸縮部材は、前記一方の前記胴回り部の前記幅方向の一端部から他端部まで連続して配置され、かつ、前記幅方向の両端部が前記一対のシートに固定された一対の端部固定部を有し、
前記複数の伸縮部材は、
前記幅方向における前記端部固定部よりも内側において、前記一対のシートに固定されていない非固定部を有する第1伸縮部材と、
前記幅方向において少なくとも前記非固定部と重複する領域が、前記一対のシートに固定された固定部を有する第2伸縮部材と、
を少なくとも一つずつ有し、
自然状態において、前記第1伸縮部材と前記長手方向において隣り合う一方側の前記伸縮部材を前記幅方向に単位長さだけ伸長させるのに必要な力が、前記第1伸縮部材と前記長手方向において隣り合う他方側の前記伸縮部材を前記幅方向に単位長さだけ伸長させるのに必要な力と異なることを特徴とする吸収性物品。 - 請求項1に記載の吸収性物品であって、
前記一対の胴回り部は、腹側胴回り部と背側胴回り部であり、
前記一対の胴回り部のうち少なくとも前記腹側胴回り部が、前記第1伸縮部材を有し、
前記腹側胴回り部において、前記第1伸縮部材と前記長手方向において内側に隣り合う前記伸縮部材の前記力が、前記第1伸縮部材と前記長手方向において外側に隣り合う前記伸縮部材の前記力よりも、大きいことを特徴とする吸収性物品。 - 請求項2に記載の吸収性物品であって、
前記非固定部が、前記吸収性物品の前記幅方向の中央を跨いでいることを特徴とする吸収性物品。 - 請求項3に記載の吸収性物品であって、
伸長状態において、
前記非固定部の前記幅方向における長さが、前記吸収性コアの前記幅方向における長さよりも、長いことを特徴とする吸収性物品。 - 請求項2~請求項4のいずれか1項に記載の吸収性物品であって、
伸長状態において、
前記腹側胴回り部を前記長手方向に4等分した際の前記長手方向における外側から3番目の領域に、前記第1伸縮部材が設けられていることを特徴とする吸収性物品。 - 請求項2~請求項5のいずれか1項に記載の吸収性物品であって、
前記吸収性コアは、第一坪量部と、前記長手方向における端部に設けられ、前記第一坪量部よりも坪量が低い第二坪量部と、を備え、
前記腹側胴回り部には、前記厚さ方向から見たときに前記第二坪量部と重複する第二坪量領域が備えられており、
前記第二坪量領域の少なくとも一部に前記非固定部が設けられていることを特徴とする吸収性物品。 - 請求項2~請求項6のいずれか1項に記載の吸収性物品であって、
前記腹側胴回り部の領域であって、前記厚さ方向に見て前記吸収性本体と重複する領域のうち、前記長手方向における前記吸収性本体の外端と前記吸収性コアの外端との間の領域に、前記非固定部が設けられていることを特徴とする吸収性物品。 - 請求項2~請求項7のいずれか1項に記載の吸収性物品であって、
前記腹側胴回り部において前記第1伸縮部材と前記長手方向において内側に隣り合う前記伸縮部材の前記力が、前記腹側胴回り部に設けられた前記複数の伸縮部材の前記力の平均よりも高いことを特徴とする吸収性物品。 - 請求項2~請求項8のいずれか1項に記載の吸収性物品であって、
前記腹側胴回り部において前記第1伸縮部材と前記長手方向において外側に隣り合う前記伸縮部材の前記力が、前記腹側胴回り部に設けられた前記複数の伸縮部材の前記力の平均よりも低いことを特徴とする吸収性物品。 - 請求項2~請求項9のいずれか1項に記載の吸収性物品であって、
伸長状態において、
前記腹側胴回り部において前記第1伸縮部材と前記長手方向において内側に隣り合う前記伸縮部材と、前記第1伸縮部材と、のピッチ間隔と、
前記腹側胴回り部において前記第1伸縮部材と前記長手方向において外側に隣り合う前記伸縮部材と、前記第1伸縮部材と、のピッチ間隔と、の平均が、
前記腹側胴回り部に設けられた前記複数の伸縮部材の全てについての、互いに隣り合う伸縮部材のピッチ間隔の平均よりも、小さいことを特徴とする吸収性物品。 - 請求項1~請求項10のいずれか1項に記載の吸収性物品であって、
前記吸収性本体は、前記一対の胴回り部に接着剤で固定されており、
前記厚さ方向に見たときに、前記非固定部と前記接着剤とが重複しない部分を有することを特徴とする吸収性物品。 - 請求項1~請求項11のいずれか1項に記載の吸収性物品であって、
前記第1伸縮部材が、前記一対のシートとは異なる色に着色されていることを特徴とする吸収性物品。 - 請求項1~請求項12のいずれか1項に記載の吸収性物品であって、
前記一対の胴回り部は、腹側胴回り部と背側胴回り部であり、
前記腹側胴回り部と前記背側胴回り部材が共に、前記第1伸縮部材を有し、
前記腹側胴回り部と前記背側胴回り部材の双方において、前記第1伸縮部材と前記長手方向において隣り合う一方側の前記伸縮部材の前記力が、前記第1伸縮部材と前記長手方向において隣り合う他方側の前記伸縮部材の前記力と異なり、
前記腹側胴回り部における前記一方側の前記伸縮部材と前記他方側の前記伸縮部材のうち、前記力が大きい方の伸縮部材の前記力は、
前記背側胴回り部における前記一方側の前記伸縮部材と前記他方側の前記伸縮部材のうち、前記力が大きい方の伸縮部材の前記力と、異なることを特徴とする吸収性物品。 - 請求項1~請求項13のいずれか1項に記載の吸収性物品であって、
前記一対の胴回り部は、腹側胴回り部と背側胴回り部であり、
前記腹側胴回り部と前記背側胴回り部材が共に、前記第1伸縮部材を有し、
前記腹側胴回り部と前記背側胴回り部材の双方において、前記第1伸縮部材と前記長手方向において隣り合う一方側の前記伸縮部材の前記力が、前記第1伸縮部材と前記長手方向において隣り合う他方側の前記伸縮部材の前記力と異なり、
前記腹側胴回り部における前記一方側の前記伸縮部材と前記他方側の前記伸縮部材のうち、前記力が小さい方の伸縮部材の前記力は、
前記背側胴回り部における前記一方側の前記伸縮部材と前記他方側の前記伸縮部材のうち、前記力が小さい方の伸縮部材の前記力と、異なることを特徴とする吸収性物品。 - 請求項1~請求項14のいずれか1項に記載の吸収性物品であって、
前記第1伸縮部材と前記長手方向において隣り合う一方側の前記伸縮部材と、前記第1伸縮部材と前記長手方向において隣り合う他方側の前記伸縮部材のうち、前記力が大きい方の前記伸縮部材が、前記第2伸縮部材であることを特徴とする吸収性物品。 - 請求項1~請求項14のいずれか1項に記載の吸収性物品であって、
前記第1伸縮部材と前記長手方向において隣り合う一方側の前記伸縮部材と、前記第1伸縮部材と前記長手方向において隣り合う他方側の前記伸縮部材のうち、前記力が小さい方の前記伸縮部材が、前記第2伸縮部材であることを特徴とする吸収性物品。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180079568.5A CN116528807B (zh) | 2020-12-14 | 2021-11-02 | 吸收性物品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020-206889 | 2020-12-14 | ||
JP2020206889A JP7084978B1 (ja) | 2020-12-14 | 2020-12-14 | 吸収性物品 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022130810A1 true WO2022130810A1 (ja) | 2022-06-23 |
Family
ID=82019105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/040345 WO2022130810A1 (ja) | 2020-12-14 | 2021-11-02 | 吸収性物品 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7084978B1 (ja) |
CN (1) | CN116528807B (ja) |
WO (1) | WO2022130810A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018061605A (ja) * | 2016-10-11 | 2018-04-19 | 白十字株式会社 | 使い捨て吸収性物品 |
WO2020004081A1 (ja) * | 2018-06-29 | 2020-01-02 | ユニ・チャーム株式会社 | 吸収性物品 |
JP2020000757A (ja) * | 2018-06-29 | 2020-01-09 | ユニ・チャーム株式会社 | 吸収性物品 |
JP2020508141A (ja) * | 2017-02-27 | 2020-03-19 | ザ プロクター アンド ギャンブル カンパニーThe Procter & Gamble Company | 弾性ベルトを有する着用可能物品 |
JP2020099704A (ja) * | 2014-08-27 | 2020-07-02 | ザ プロクター アンド ギャンブル カンパニーThe Procter & Gamble Company | 弾性ベルトを有する着用可能物品 |
JP2020151253A (ja) * | 2019-03-20 | 2020-09-24 | ユニ・チャーム株式会社 | 吸収性物品 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5846963B2 (ja) * | 2011-02-28 | 2016-01-20 | ユニ・チャーム株式会社 | 使い捨て着用物品 |
CN205019271U (zh) * | 2014-06-19 | 2016-02-10 | 花王株式会社 | 吸收性物品 |
CN105997350B (zh) * | 2015-03-27 | 2021-05-14 | 大王制纸株式会社 | 吸收性物品的伸缩结构和短裤型一次性尿布 |
JP6811278B2 (ja) * | 2019-03-20 | 2021-01-13 | ユニ・チャーム株式会社 | 吸収性物品 |
-
2020
- 2020-12-14 JP JP2020206889A patent/JP7084978B1/ja active Active
-
2021
- 2021-11-02 WO PCT/JP2021/040345 patent/WO2022130810A1/ja active Application Filing
- 2021-11-02 CN CN202180079568.5A patent/CN116528807B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020099704A (ja) * | 2014-08-27 | 2020-07-02 | ザ プロクター アンド ギャンブル カンパニーThe Procter & Gamble Company | 弾性ベルトを有する着用可能物品 |
JP2018061605A (ja) * | 2016-10-11 | 2018-04-19 | 白十字株式会社 | 使い捨て吸収性物品 |
JP2020508141A (ja) * | 2017-02-27 | 2020-03-19 | ザ プロクター アンド ギャンブル カンパニーThe Procter & Gamble Company | 弾性ベルトを有する着用可能物品 |
WO2020004081A1 (ja) * | 2018-06-29 | 2020-01-02 | ユニ・チャーム株式会社 | 吸収性物品 |
JP2020000757A (ja) * | 2018-06-29 | 2020-01-09 | ユニ・チャーム株式会社 | 吸収性物品 |
JP2020151253A (ja) * | 2019-03-20 | 2020-09-24 | ユニ・チャーム株式会社 | 吸収性物品 |
Also Published As
Publication number | Publication date |
---|---|
JP7084978B1 (ja) | 2022-06-15 |
CN116528807A (zh) | 2023-08-01 |
CN116528807B (zh) | 2024-05-07 |
JP2022094074A (ja) | 2022-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4215370B2 (ja) | 吸収性物品 | |
JP5000551B2 (ja) | 吸収性物品及び吸収性本体保持カバー | |
JP6118703B2 (ja) | 吸収性物品 | |
JP7147912B2 (ja) | テープ型使い捨ておむつ | |
JP2009061046A (ja) | 使い捨ておむつ | |
WO2020189280A1 (ja) | 吸収性物品 | |
WO2020189279A1 (ja) | 吸収性物品 | |
JP2008253583A (ja) | パンツ型使い捨ておむつ | |
JP5250407B2 (ja) | 使い捨てパンツ型おむつおよびその製造方法 | |
WO2019031124A1 (ja) | パンツ型吸収性物品 | |
JP3948870B2 (ja) | 吸収性物品 | |
JP3166677U (ja) | 吸収性物品及び吸収性本体保持カバー | |
JP2009195647A (ja) | 吸収性物品及び吸収性本体保持カバー | |
JP5940838B2 (ja) | パンツ型吸収性物品 | |
WO2022130653A1 (ja) | 吸収性物品 | |
JP5721987B2 (ja) | 吸収性物品 | |
WO2022130810A1 (ja) | 吸収性物品 | |
JP6255203B2 (ja) | 吸収性物品 | |
JP5192905B2 (ja) | 吸収性物品及び吸収性本体保持カバー | |
JP6236420B2 (ja) | 吸収性物品 | |
WO2022130811A1 (ja) | 吸収性物品 | |
JP7366597B2 (ja) | 吸収性物品 | |
WO2023248802A1 (ja) | パンツ型吸収性物品 | |
JP7278819B2 (ja) | 吸収性物品 | |
JP7297426B2 (ja) | 吸収性物品 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21906174 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112023006290 Country of ref document: BR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180079568.5 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 112023006290 Country of ref document: BR Kind code of ref document: A2 Effective date: 20230404 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21906174 Country of ref document: EP Kind code of ref document: A1 |