Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/505—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable parts
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
  • A61F13/47—Sanitary towels, incontinence pads or napkins
  • A61F13/4704—Sanitary towels, incontinence pads or napkins having preferential bending zones, e.g. fold lines or grooves
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
  • A61F13/47—Sanitary towels, incontinence pads or napkins
  • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F13/00—Bandages or dressings; Absorbent pads
  • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
  • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
  • A61F13/47—Sanitary towels, incontinence pads or napkins
  • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
  • A61F13/47218—Sanitary towels, incontinence pads or napkins specially adapted for female use with a raised crotch region, e.g. hump
• • 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
  • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use

Definitions

• the present invention relates to an absorbent article.
• an absorbent article that absorbs a predetermined liquid such as menstrual blood
• an absorbent layer that absorbs the predetermined liquid
• a liquid-permeable surface sheet that covers the skin side surface of the absorbent layer
• An absorbent article that has a liquid-impermeable back sheet covering the clothing side surface and is formed as a sheet as a whole can be exemplified.
• Such a substantially sheet-like absorbent article is used in a state of being in contact with the excretion opening of a predetermined liquid such as menstrual blood, and directly absorbs the predetermined liquid such as menstrual blood from the excretion opening.
• Various measures have been taken to prevent menstrual blood flowing along a predetermined groove in the clothes from adhering to clothes.
• wings are provided on both sides of the absorbent article so as to protrude in the width direction, and the wing is folded back to the underwear side to fix the absorbent article.
• Patent Document 1 JP 2000-152957 A
• the upper absorbent body is generally fixed along the longitudinal direction to the lower absorbent body of the sanitary napkin and is disposed at both ends of the lower absorbent body. Therefore, the top surface is wide and flat in the width direction when installed. For this reason, since a predetermined space is generated between the upper absorbent body and the groove in the body, the upper absorbent body cannot abut on the excretion part at the back of the body groove and cannot be tightly contacted. Leakage may occur.
• the upper absorbent body can follow the body side by being deformed, but it is greatly displaced in the width direction. It cannot follow the movement of the body or underwear or the movement of the body or underwear in the vertical direction
• the upper absorbent body is generally fixed to the lower absorbent body along the longitudinal direction, when the sanitary napkin is attached to the underwear, the upper absorbent body is attached at a position where the user cannot see it. Therefore, it is not always possible to wear the upper absorbent body so that it adheres well to the groove of the body. If the upper absorbent body cannot be worn so as to be in close contact with the body groove, a predetermined space is created between the upper absorbent body and the excretion opening, which may cause leakage.
• the present invention has been made in view of the problems as described above, and an object thereof is to provide an absorbent article including an absorbent body capable of following the body side.
• a substantially rectangular first absorbent body for example, a base absorbent body 2 in a first embodiment to be described later
• a second absorbent body for example, a top absorbent body 3 in the first embodiment described later
• the first absorbent body, and the second absorbent body that are arranged along the direction, and the second absorbent body in the longitudinal direction.
• An absorbent article comprising: a first absorbent body and an engaging portion capable of engaging the second absorbent body.
• the absorbent article is an outer edge in the longitudinal direction, a front edge close to a first position that contacts the excretion part in a state of being mounted on the mounting target, and the first position.
• the absorbent article according to (1) further including a far rear edge, wherein the fixing portion is formed between the first position and the front edge.
• the first absorbent body has a central portion on which the second absorbent body can be disposed on a surface on which the second absorbent body is disposed, and the central portion is the central portion.
• the first absorbent-side surface sheet is disposed so as to cover the surface of the first absorbent-side surface sheet, and the first absorbent-side surface sheet is formed of a non-woven fabric that can be engaged with the locking portion.
• An elastic member is disposed on the skin contact surface side of the first absorbent-side surface sheet on the rear edge side of the first absorbent body, according to any one of (1) to (4) Absorbent articles.
• an absorbent article including an absorbent body capable of following the body side.
• FIG. 1 is a plan view of an absorbent article in a first embodiment of the present invention.
• FIG. 2 is a back view of the absorbent article according to the first embodiment of the present invention.
• FIG. 3A is a cross-sectional view of the absorbent article in FIG. 1 according to the first embodiment of the present invention.
• FIG. 3B is a cross-sectional view of the absorbent article in FIG. 1 according to the first embodiment of the present invention.
• FIG. 3C is a cross-sectional view of the absorbent article in FIG. 1 according to the first embodiment of the present invention.
• FIG. 4 is a longitudinal sectional view in the YY direction of FIG. 1 of the absorbent article in the first embodiment of the present invention.
• Fig. 5 is a view showing an absorbent body arranged in a top absorbent body in the first embodiment of the present invention.
• Fig. 6 is a view showing an absorbent body arranged on the base absorbent body in the first embodiment of the present invention.
• FIG. 7 is a view showing a compressed groove of the base absorbent body in the first embodiment of the present invention.
• FIG. 8 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 9 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 10 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 11 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 12A is a cross-sectional view of a top absorbent core according to a second embodiment of the present invention.
• FIG. 12B is a cross-sectional view of the top absorbent core according to the second embodiment of the present invention.
• FIG. 13A is a plan view of an absorbent article according to a third embodiment of the present invention.
• FIG. 13B is a plan view of the absorbent article in the third embodiment of the present invention.
• FIG. 14A is a plan view of an absorbent article according to a fourth embodiment of the present invention.
• FIG. 14B is a plan view of an absorbent article according to a fourth embodiment of the present invention.
• FIG. 15A is a plan view of an absorbent article according to a fifth embodiment of the present invention.
• FIG. 15B is a plan view of an absorbent article according to a fifth embodiment of the present invention.
• FIG. 16 is a cross-sectional view of a top absorbent core according to the sixth embodiment of the present invention.
• FIG. 17 is a plan view of an absorbent article according to a seventh embodiment of the present invention.
• FIG. 18 is a plan view of an absorbent article according to an eighth embodiment of the present invention.
• FIG. 19 is an enlarged longitudinal sectional view of a top absorbent body of an absorbent article according to an eighth embodiment of the present invention.
• FIG. 1 is a plan view of an absorbent article in the first embodiment of the present invention.
• FIG. 2 is a rear view of the absorbent article according to the first embodiment of the present invention.
• FIG. 3A is a cross-sectional view of the absorbent article in the first embodiment of the present invention in the AA direction of FIG.
• FIG. 3B is a cross-sectional view of the absorbent article in the first embodiment of the present invention in the BB direction of FIG.
• FIG. 3C is a cross-sectional view of the absorbent article in the first embodiment of the present invention in the CC direction of FIG.
• FIG. 4 is a longitudinal sectional view in the YY direction of FIG. 1 of the absorbent article according to the first embodiment of the present invention.
• FIG. 5 is a view showing an absorbent body arranged on the top absorbent body in the first embodiment of the present invention.
• FIG. 6 is a view showing an absorbent body arranged in the base absorbent body in the first embodiment of the present invention.
• FIG. 7 is a view showing a compressed groove of the base absorbent body according to the first embodiment of the present invention.
• FIG. 8 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 9 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 10 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 11 is a perspective view of the absorbent article in use according to the first embodiment of the present invention.
• FIG. 12A is an enlarged plan view of the rear edge side of the base absorbent body in the second embodiment.
• FIG. 12B is an enlarged back view of the free end side of the top absorbent core according to the second embodiment.
• FIG. 13A is an enlarged plan view of the rear edge side of the base absorbent body according to the third embodiment.
• FIG. 13B is an enlarged back view of the free end side of the top absorbent core according to the third embodiment.
• FIG. 14A is an enlarged plan view of the rear edge side of the base absorbent body according to the fourth embodiment.
• FIG. 14B is an enlarged back view of the free end side of the top absorbent core in the fourth embodiment.
• FIG. 15A is an enlarged plan view of the rear edge side of the base absorbent body according to the fifth embodiment.
• FIG. 15B is an enlarged back view of the free end side of the top absorbent core in the fifth embodiment.
• FIG. 16 is a cross-sectional view of the top absorbent core in the sixth embodiment.
• FIG. 17 is a plan view of an absorbent article according to a seventh embodiment of the present invention.
• FIG. 18 is a plan view of an absorbent article according to the eighth embodiment of the present invention.
• FIG. 19 is an enlarged longitudinal sectional view of the top absorbent body of the absorbent article according to the eighth embodiment of the present invention.
• the absorbent article 1 in the first embodiment of the present invention will be described with reference to FIGS.
• the absorbent article 1 in the present embodiment is a substantially rectangular absorbent article.
• the absorbent article 1 includes a substantially rectangular base absorbent body 2 and a top absorbent body 3 disposed on one surface of the base absorbent body 2 along the longitudinal direction LD of the base absorbent body 2.
• the top absorbent body 3 With respect to the top absorbent body 3, at least a part in the longitudinal direction LD is fixed to the base absorbent body 2, and the unfixed end part is separated from the base absorbent body 2 starting from the fixed part and can operate independently. Free end 31.
• the base absorbent body 2 is disposed on the clothing side and absorbs a predetermined liquid such as menstrual blood that has been absorbed by the top absorbent body 3.
• a band-shaped central portion 20 is formed along the longitudinal direction LD substantially at the center in the width direction WD of the base absorbent body 2.
• Wings 23A and 23B are formed on both sides of the width direction WD in the absorbent article 1 so as to protrude outward in the width direction WD.
• the absorbent article 1 has a position Z as a first position where the body excretion opening portion is assumed to contact.
• Position Z is a center line Y extending along the longitudinal direction LD at the center in the width direction WD of the absorbent article 1 and a center line B extending along the width direction WD at the center in the longitudinal direction LD of the wings 23A and 23B.
• the wings 23A and 23B are formed so as to satisfy the positional relationship described above.
• the area where the wings 23A and 23B are arranged is the central area CA
• the area ahead of the area where the wings 23A and 23B are arranged is the front area FA and the arrangement of the wings 23A and 23B.
• the area behind the marked position is the rear area BA. Details are as described later.
• the top absorbent core 3 is stacked on the central portion 20 of the base absorbent body 2.
• the top absorbent body 3 absorbs a predetermined liquid such as menstrual blood by directly contacting a body excretion opening or the like when used.
• the top absorbent body 3 is fixed to the base by a fixing part 4 provided in a part of the longitudinal direction LD. Fixed to collector 2. The end portion on the side not fixed by the fixing portion 4 becomes the free end 31.
• the top absorbent body 3 is fixed to the base absorbent body 2 at a position other than the end, for example, the side farther from the fixed section 4 in the longitudinal direction LD becomes the free end 31.
• a handle portion 40 is disposed on the free end 31 side of the top absorbent body 3.
• the handle part 40 is gripped, and the free absorbent 31 side of the top absorbent body 3 is separated from the base absorbent body 2 with the fixed part 4 as a starting point.
• the top absorbent body 3 can be arranged along the crack which is a groove.
• the top absorbent body 3 is provided with a temporary fixing portion 5.
• the temporary fixing part 5 temporarily fixes the top absorbent body 3 to the base absorbent body 2 so as to be separated by a predetermined force.
• the movement of the top absorbent body 3 is restricted when it is temporarily fixed by the temporary fixing portion 5, and its movement is not restricted when the temporary fixation is released.
• the top absorbent body 3 is separated from the base absorbent body 2 with the fixed part 4 as a starting point in a state where the temporary fastening by the temporary fastening part 5 is released.
• the top absorbent core 3 includes a locking portion 37 on the handle portion 40 side of the free end 31 in the longitudinal direction LD.
• the top absorbent body 3 is disposed on the side facing the base absorbent body 2 and is covered with the base absorbent body 2 when the top absorbent body 3 is not separated from the base absorbent body 2, and the base absorbent body 2 to the top absorbent body 3. In the separated state, it is exposed. That is, the locking portion 37 is protected by the base absorbent body 2 before the top absorbent body 3 is pulled away from the base absorbent body 2. After the position of the locking portion 37 is adjusted so that the top absorbent body 3 is separated from the base absorbent body 2 and follows the crack, the top absorbent body 3 is attached to the base absorbent body 2 in order to maintain the state. Lock.
• the top absorbent body 3 is disposed so as to be separated from the base absorbent body 2 with the fixing portion 4 as a starting point. That is, the top absorbent body 3 can be operated (moved or deformed) independently of the base absorbent body 2. This makes it possible to keep the absorbent body in close contact with the body without being affected by the movement of the clothes on which the base absorbent body 2 is arranged. Each configuration is described in detail below.
• the top absorbent body 3 is a substantially elongated absorbent body disposed on the skin contact surface side of the base absorbent body 2.
• the top absorbent 3 is the base absorbent 2
• the top absorption part 30 which has the absorber 35, and the substantially plate-shaped handle part 40 arrange
• One end portion of the top absorbent body 3 in the longitudinal direction LD is fixed by the fixing portion 4.
• the unfixed end becomes the free end 31.
• the end portion on the free end 31 side of the top absorbent portion 30 becomes the free end portion 32.
• the fixing portion 4 can be formed at an arbitrary position in the longitudinal direction LD of the top absorbent body 3, but in the present embodiment, when the top absorbent body 3 is disposed on the base absorbent body 2, it is disposed on the front edge 220 side.
• the fixed portion 4 is formed on the one end side.
• the other end arranged on the rear edge 230 side is a free end 31.
• the free end 31 can be separated from the base absorbent body 2.
• the top absorbent body 3 is configured such that the free end 31 can be separated from the fixed part 4 as a starting point from the state where the top absorbent body 3 is arranged in the center of the width direction WD of the central part 20 in the base absorbent body 2.
• the free end 31 is an end far from the fixed portion 4, and the degree of freedom of the top absorbent body 3 increases as the distance from the free end 32 to the fixed portion 4 increases.
• the position of the top absorbent body 3 in the mounted state is suitably adjusted by adjusting the position on the free end 31 side. it can.
• the top absorbent body 3 is disposed, for example, in a state of extending 5 mm forward from the front edge 220 of the base absorbent body 2 and 20 mm rearward from the rear edge 230.
• the reason for extending the front edge 5 mm from the front edge 220 is to take into account the case where a deviation occurs in consideration of manufacturing errors.
• by extending the top absorbent body 3 by 20 mm rearward from the rear edge 230 it is possible to easily grasp the handle part 40 when the handle part 40 is grasped and the free end 31 of the top absorbent body 3 is pulled up. it can.
• a handle 40 can be formed on the extended portion.
• the top absorbent portion 30 includes the surface layer 33, the absorbent body 35, and the base absorbent body of the top absorbent portion 30 disposed on the skin contact surface side. 2 A back sheet 34 serving as a leak-proof layer is provided on the contact surface side.
• the top absorption part 30 is a main member that absorbs a predetermined liquid excreted from the excretion opening.
• the surface layer 33 is formed by subjecting the top sheet 331 and the second sheet 332 arranged in a stacked manner to a hole opening process. It is formed by doing.
• the surface layer 33 is formed by forming a plurality of apertures by the above-described aperture treatment and integrating the top sheet 331 and the second sheet 332 together.
• the second sheet 332 is disposed so as to cover the surface of the absorbent body 35 on the skin contact surface side.
• the top sheet 331 is disposed on the skin contact surface side of the second sheet 332, and is disposed so as to wrap around the second sheet 332, the absorber 35 described later, and the entire back sheet 34.
• the top sheet 3 31 constitutes the outermost surface of the top absorbent portion 30.
• seat 331 is arrange
• a member similar to the surface sheet 27 of the base absorbent body 2 described later can be used as the top sheet 331, a member similar to the surface sheet 27 of the base absorbent body 2 described later can be used.
• FIGS. 3A and 4 As shown in FIGS. 3A and 4, at the end portion on the front area FA side in the longitudinal direction LD of the top absorbent portion 30, only the top sheet 331 is laminated in three layers. Then, a fixing portion 4 that is fixed to the base absorbent body 2 is disposed at the end on the front area FA side. It should be noted that, in the portion where the top sheet 331 is laminated in three layers, it is preferable that each layer is adhered by a hot melt adhesive.
• the end on the rear area BA side in the longitudinal direction LD of the top absorbent portion 30 is folded in three with the top sheet 331 and the back sheet 34 being laminated, It is in a state of being laminated in three layers.
• a handle 40 which will be described later, is disposed at the end on the rear area BA side. Further, at the end on the rear area BA side, each layer in which the top sheet 331 and the back sheet 34 are laminated is bonded by a hot melt adhesive.
• the second sheet 332 is disposed on the skin contact surface side of the top absorbent portion 30 so as to cover the surface of the absorber 35 described later.
• the second sheet 332 is laminated between the top sheet 331 and the absorber 35 described later.
• the second sheet 332 is preferably formed so as to be slightly larger than the absorber 35.
• the length in the longitudinal direction LD of the second sheet 332 is 300 mm, and the length in the width direction WD is 45 mm.
• the second sheet 332 in the present embodiment is a fiber having a core-sheath structure in which, for example, polypropylene is used as a core and polyethylene is used as a sheath, and the air-through nonwoven fabric has a fiber strength of 3.3 dtex and a fiber length of 51 mm. It is formed by.
• the basis weight of the second sheet 332 is, for example, 20 gZm 2 .
• Second sheet 332 is denser than top sheet 331 It is preferable to be formed. Since the second sheet 332 has a higher density than the top sheet 331, liquid transfer from the top sheet 331 can be enhanced.
• the top sheet 331 may be stacked in two layers to create a density gradient.
• the top absorbent portion 30 includes a liquid-impermeable back sheet 34 serving as a leak-proof layer.
• the back sheet 34 is at least a part of the absorber 35 on the base absorber contact surface side and is disposed on the rear edge 230 side.
• the back sheet 34 is preferably arranged such that the base absorbent contact surface side force of the absorbent body 35 is also disposed on the side surface and not on the skin contact surface side. Thereby, when the predetermined liquid excreted in the top absorbent portion 30 flows toward the rear edge 230, the liquid can be absorbed by the absorber 35.
• a non-woven fabric having a basis weight of 24 gZm 2 and formed of a liquid-impervious film or a hydrophobic fiber can be used. .
• the absorber 35 mainly absorbs and holds a predetermined liquid excreted.
• the absorbent body 35 is formed of powdered pulp and a super absorbent polymer.
• the pulverized pulp is preferably arranged so that the basis weight is partially different in the top absorbent portion 30.
• the basis weight of the region 353 where the fixing part 4 is formed is 200 gZm 2
• punched portions 351 and 352 are formed in the rear region BA in the top absorbent portion 30, in the rear region BA in the top absorbent portion 30, punched portions 351 and 352 are formed.
• the cut-out part 351 is formed along the width direction WD on the central area CA side in the rear area BA of the top absorbent part 30, and the cut-out part 352 is formed in the width direction WD on the rear edge 230 side in the rear area BA of the top absorbent part 30. Formed along.
• the cutout portions 351 and 352 are regions where the basis weight of the pulverized pulp is lower than that in other regions. Further, the punched portions 351 and 352 serve as folding starting points when the absorbent article 1 is folded.
• a region 357 having a weight per unit area of 200 gZm 2 is formed in a vertically long shape substantially at the center in the width direction WD of the top absorber 30. This region 357 induces deformation in the top absorber 3 in the mounted state.
• the absorber 35 is formed so as to be shorter than the length of the top sheet 331 in the longitudinal direction LD with respect to the length in the longitudinal direction LD. That is, as described above, the absorber 35 is not disposed at both ends of the top absorbent portion 30 in the longitudinal direction LD.
• the length of the top absorbent body 3 in the longitudinal direction LD is, for example, 200 mm force to 500 mm, and preferably 230 mm force 450 mm.
• the length in the longitudinal direction LD of the top absorbent body 3 in the first embodiment can be 335 mm.
• the length of the top absorbent portion 30 in the longitudinal direction LD can be exemplified by 280 mm, for example.
• the length of the top absorbent portion 30 in the width direction WD is shorter than the length of the base absorbent body 2 in the width direction WD. Further, it is preferable that the top absorbent portion 30 has such a length that it can come into contact with the longitudinal direction LD along the crack.
• the length of the top absorbent portion 30 in the width direction WD is 15 mm to 50 mm, preferably 20 mm, force 40 mm. If the width dimension is less than 15mm, the width will not be sufficient to continue to hit the vaginal opening, creating a gap between the body and the napkin, making it easier to leak.
• the width dimension of the top absorbent portion 30 in the first embodiment can be exemplified as 40 mm, for example.
• the top absorbent portion 30 is preferably substantially equal in width in the longitudinal direction LD.
• the cross-sectional shape of the top absorbent portion 30 in the width direction WD is preferably such that the skin contact surface and the base absorbent body 2 contact surface are at least substantially parallel.
• the fixing portion 4 is disposed at an arbitrary position of the top absorbent body 3 and fixes the top absorbent body 3 to the base absorbent body 2. Specifically, the top absorbent body 3 is fixed to the base absorbent body 2 in a predetermined region in the longitudinal direction by the fixing portion 4. In the top absorbent body 3, an end portion that is not fixed to the fixed portion 4 is a free end.
• the fixing portion 4 is formed on the front edge 220 side of the top absorbent body 3 in a state where the top absorbent body 3 is placed on the base absorbent body 2. Specifically, top absorption The end portion of the portion 30 on the front edge 220 side is formed at a position corresponding to the area of the absorbent body 35 from the area formed only by the top sheet 331 to the area 353 of 200 gZm 2.
• the fixed portion 4 includes a crimping portion 46 and a joining portion 47.
• the joint 47 is formed by arranging hot melt adhesive at substantially equal intervals along the longitudinal direction LD in a region formed only of the top sheet 331 in the top absorbent body 3 and a region where the absorbent body 35 is disposed.
• the front area of the absorbent body 2 is formed by mounting and adhering the top absorbent body 3 substantially in the center of the width WD of the FA.
• the hot melt adhesive is preferably applied so as to face a portion where the compressed groove 22 is not disposed in the front region FA of the base absorbent body 2.
• the hot melt adhesive is also applied to the region up to the front edge 220 with a predetermined positional force between the position Z and the front edge 220.
• the fixing portion 4 is formed on the front edge 220 side with respect to the position Z.
• the fixing portion 4 may be joined by combining the top absorbent body 3 and the base absorbent body 2 by a compressed groove that is not formed by a hot melt adhesive. In this case, a region where the base absorbent body 2 and the top absorbent body 3 are fixed by the compressed groove is the fixed portion 4.
• the crimping portion 46 is formed at a portion of the base absorbent body 2 on the front edge 220 side where the absorbent body 28 is not disposed.
• the crimping part 46 is formed in the part of the base absorbent body 2 together with the area formed only by the top sheet 331 of the top absorbent part 30.
• the fixing portion 4 is formed by joining the surface layer 33 and the absorber 35 of the top absorbent body 3 and the base absorbent body 2 by a pressure bonding process.
• the top absorbent body 3 is provided with a temporary fixing portion 5.
• the temporary fixing portion 5 temporarily fixes the top absorbent body 3 to the base absorbent body 2 so as to be separated with a predetermined force.
• the movement of the top absorbent body 3 is restricted when it is temporarily fixed by the temporary fixing portion 5, and its movement is not restricted when the temporary fixation is released.
• the top absorbent body 3 is separated from the base absorbent body 2 with the fixed part 4 as a starting point in a state where the temporary fastening by the temporary fastening part 5 is released.
• the temporary fixing part 5 is formed between the fixed part 4 and the free end part 32 in the top absorbent body 3.
• the base absorbent body 2 is formed in the vicinity of the rear edge 230 in the central portion 20.
• the temporary fixing portion 5 is formed in the vicinity of the free end 31. . Specifically, the temporary fixing portions 5 are formed on both sides of the free end portion 32 in the width direction WD.
• the temporary fixing portion 5 is formed in an area formed only by the top sheet 331 and the back sheet 34 in the top absorbent body 3. Further, the temporary fixing portion 5 is formed in the vicinity of the handle portion 40 in the top absorbent body 3. A force applied in the outward direction in the longitudinal direction LD of the handle part 40 or the upper surface direction in FIG. 1 is directly transmitted to the temporary fixing part 5. In other words, when the handle part 40 is moved outward in the longitudinal direction LD or in the upper surface direction in FIG. 1, the temporarily fixed state in the temporarily fixed part 5 is released.
• the temporary fixing portion 5 is formed in a circular shape on both sides in the width direction WD of the free end portion 32 in the vicinity of the handle portion 40 in the top absorbent body 3.
• the top absorbent body 3 is fixed at a point by two temporary fixing portions 5 and 5.
• the temporary fixing portion 5 is formed on the rear edge 230 side of the base absorbent body 2.
• the temporary fixing portion 5 is formed in an area composed of only the top sheet 27 and the back sheet 29 in the base absorbent body 2.
• the temporary fixing portion 5 is formed by embossing (crimping) from the upper surface of the top absorbent body 3 in a state where the top absorbent body 3 is laminated on the base absorbent body 2.
• the temporary fixing portion 5 includes a free end portion 32 formed only by the top sheet 331 and the back surface sheet 34 in the top absorbent body 3, and the top sheet 27 and the back sheet 29 in the base absorbent body 2. Is formed by pressure-bonding a region where the and are stacked and heated with an embossing member having irregularities formed on the surface. As a result, the temporary fixing portion 5, which is the embossed portion, fixes the top absorbent body 3 and the base absorbent body 2 by light heat fusion.
• the bonding force of the temporary fixing portion 5 is such that the free end 31 of the top absorbent body 3 and the base absorbent body 2 are not easily separated from each other during the attachment process to the body. Furthermore, the joining force is such that the user can easily release it without performing complicated operations.
• the locking portion 37 may also serve as the temporary fixing portion 5. That is, the locking portion 37 can be locked to the base absorbent body 2 before being attached to the body, thereby functioning as the temporary locking portion 5. In other words, by locking the locking portion 37 as a temporary locking portion to the base absorbent body 2, It is possible to regulate the movement of the free end 31 in the loop absorber 3.
• a locking portion 37 functioning as a temporary fixing portion is further arranged so that both the temporary fixing portion 5 and the locking portion 37 are temporarily fixed. It may be.
• the handle portion 40 is disposed on the free end 31 side in the longitudinal direction LD of the top absorbent portion 30.
• the handle 40 is used during the mounting process of the absorbent article 1.
• the handle portion 40 is formed so as to protrude most outward in the longitudinal direction LD at the center portion in the width direction WD.
• the outer edge portion of the handle portion 40 is curved. Specifically, the width direction W of the top absorber 3
• It can be formed in a substantially semicircular shape with the intersection of the substantially central extension line in D and the outer edge as the apex.
• the handle portion 40 is disposed on the free end 31 side, and is on the free end 31 side of the top absorbent portion 30, and only the top sheet 331 and the back sheet 34 without the absorber 35 in the top absorbent portion 30. Is formed in the extended region.
• the handle portion 40 is formed by increasing the rigidity of the free end portion 32 of the top absorbent portion 30.
• the handle part 40 is formed by embossing the area where only the top sheet 331 and the back sheet 34 extend from the free end part 32 of the top absorbent part 30 and increasing the rigidity. Is done.
• a small circular embossed portion is formed in a hook shape on the handle portion 40, and a flower-shaped embossed portion is formed on the side portion thereof.
• the embossed portion formed in the hook shape functions as a guide element for a position where the finger is placed when the handle portion 40 is gripped.
• the handle 40 can be given a design. That is, a guide element or a pattern can be formed on the handle portion 40 by an embossing process for imparting rigidity. That is, in the step of imparting rigidity, it is possible to impart predetermined functions and design properties at once.
• the design (guide element) attached to the handle part 40 can be given an arbitrary one depending on the shape of the embossed part. For example, it is possible to give a display that prompts the user to pinch the handle 40 and pull it in a predetermined direction in the longitudinal direction LD. It is. Specifically, the handle 40 It may be an arrow pointing outward in the longitudinal direction LD that suggests pulling in the hand direction LD, a point indicating a pinching point, or a combination of predetermined colors.
• the temporary fixing portions 5, 5 are formed as described above. Since the temporary fixing portions 5 and 5 are formed at positions that follow the movement of the handle portion 40, the temporary fixing state of the temporary fixing portions 5 and 5 is released by moving the handle portion 40 by a predetermined distance. Specifically, the temporarily fixed state of the temporary fixing portions 5 and 5 is released by moving the handle portion 40 in order to lock the locking portion 37 described later to another position.
• a locking portion 37 described later is disposed in the vicinity of the handle portion 40.
• the locking portion 37 is arranged at a position where the handle portion 40 moves following the movement of the handle portion 40.
• the handle portion 40 is disposed at a position where the movement (position) of the locking portion 37 can be suitably adjusted.
• the outer edge of the handle portion 40 is preferably arranged so as to extend from the rear edge 230 of the base absorbent body 2. Specifically, starting from the rear edge 230 of the base absorbent body 2, outward 100 mm to 50 mm, preferably outward 60 mm to inward 30 mm, more preferably outward 30 mm to inward. A range of 20 mm can be exemplified.
• the outer edge portion of the handle portion 40 is arranged so that the handle portion 40 extends from the rear edge 230 of the base absorbent body 2 so that the user can easily grasp it. For example, when the absorbent article 1 is mounted, when the user searches for the handle 40 in the back, the handle 40 can be easily identified. Further, the portion of the handle portion 40 that protrudes outward from the rear edge 230 functions suitably as a grip portion.
• the bending rigidity (B) of the handle portion 40 is 0.1 to 1.2 (10 _4 N'm 2 Zm), preferably 0.2 to l (10 _4 N * m 2 Zm), and more preferably Is 0.3 force and 0.8 (10 _4 N * m 2 Zm).
• the handle part 40 is gripped and the top absorbent body is arranged at a predetermined part of the body. It may be difficult to perform certain operations.
• the handle part 40 may give a feeling of strangeness during wearing.
• the bending rigidity (B) of the handle 40 is preferably in the above range.
• handle portion 40 of the bending recovery (2HB) is, 10 (10 _2 N * mZm ) or less, preferably 7 or less, still more preferably 3 (10 _2 N * mZm) below. If the bend recovery property (2HB) of the handle 40 is greater than 10 (10 _2 N'mZm), the crease may be easily creased when it is folded halfway, and the crease may be uncomfortable. For this reason, it is preferable that the bending recovery property (2HB) of the handle portion 40 is in the above range.
• the thickness of the handle portion 40 is 0.5 force to 4 mm, preferably 0.7 force to 3.5 mm. If the thickness of the handle 40 is less than 0.5 mm, the user will not be able to withstand gripping and pulling the handle 40. May give. On the other hand, if the handle 40 is thicker than 5mm, it may give the user a foreign object.
• an automated pure bending tester (trade name, model name “KES FB2-AUTO A”) manufactured by Kato Tech Co., Ltd. was used.
• the sample size should be adjusted to 100mm x 100mm (if the width is not enough, it should be adjusted between 10mm and 100mm in increments of 10mm).
• Bending rigidity (B) is obtained as a value on a predetermined hysteresis curve, represented by an average slope between the curvature 0.5 of 1. 5c m _1.
• Bending recovery (2 ⁇ ) is represented by a hysteresis width of a bending moment ⁇ in curvature 1.
• a higher bend recovery (2HB) means lower (lower) bend recovery.
• the absorbent article 1 has, as a locking means, a center of a locking part 37 serving as a top absorbent side locking part and a base absorbent body 2 serving as a base absorbent side locked part. Part 20 and Is provided.
• the locking part 37 locks the free end 31 side of the top absorbent body 3 at a predetermined position. Specifically, the locking part 37 locks the free end 31 side of the top absorbent body 3 at a predetermined position in a state where the locking part 37 is mounted on a body as a mounting target.
• the free end 31 is closer to the outer edge side in the longitudinal direction LD of the base absorbent body 2 than the position where the base absorbent body 2 and the top absorbent body 3 are substantially planar. It is an absorbent article in which the base absorbent body 2 and the top absorbent body 3 can be locked so as to be disposed.
• the position where the locking portion 37 is locked is on the outer edge side than the position where the locking portion 37 contacts when the top absorbent body 3 and the base absorbent body 2 are placed on a substantially flat surface.
• the locking part 37 on the top absorbent body 3 side is closer to the rear edge 230 than the position of the locking part 37 when the top absorbent body 3 and the base absorbent body 2 are mounted on a substantially flat surface. Locked.
• the position at which the locking member of the base absorbent body 2 is locked is higher than the position where the locking portion 37 contacts when the top absorbent body 3 and the base absorbent body 2 are placed on a substantially flat surface.
• the locking portion 37 is disposed on the free end 31 side of the top absorbent body 3.
• the locking portion 37 is arranged on the inner side of the outer edge in the longitudinal direction of the base absorbent body 2 when the base absorbent body 2 and the top absorbent body 3 are substantially planar. Specifically, the locking portion 37 is disposed on the base absorbent body 2 side of the top absorbent body 3 and in the rear region BA.
• the locking portion 37 is arranged at the center of the top absorption portion 30 in the width direction WD.
• the locking portion 37 is a contact surface on the side of the base absorbent body 2 on the top absorbent body 3 and corresponds to the space between the removed portion 351 of the absorbent body 35 and the removed portion 352 arranged on the rear area BA side. It is placed at the position to be.
• the locking portion 37 is disposed at a position corresponding to the region 355 in the absorbent body 35 on the base absorbent body 2 contact surface side of the top absorbent body 3. More specifically, the end portion on the rear edge 230 side of the locking portion 37 is disposed so as to correspond to the end portion on the front edge 220 side in the punched portion 352.
• the locking portion 37 is disposed on the side facing the base absorbent body 2, and is covered with the base absorbent body 2 in a protected state when the top absorbent body 3 is not separated from the base absorbent body 2. However, in a state where the top absorbent body 3 is separated from the base absorbent body 2, it is exposed to be in a state of preparing for engagement with the locked body.
• Providing the locking portion 37 at a position where the top absorbent body 3 can face the base absorbent body 2 has the following effects.
• the engaging portion 37 is not exposed to the outer surface, so that it is possible to prevent a user or the like from touching the engaging portion 37.
• the user intentionally touches the locking portion 37 the user's hand and the locking portion 37 rarely come into contact with each other. Therefore, it is excellent in hygiene and there is no fear of deterioration of the locking force due to contact with the hand.
• the latching portion 37 enters the stage of preparation for latching with the body to be latched by taking the operation of pulling the handle 40 and pulling the top absorber 3 away from the base absorbent body 2. Accordingly, the series of operability is excellent, and the user can be prevented from touching the locking portion 37 even in the operating state.
• the hook material to the locking portion 37, the deterioration of the locking force is remarkably suppressed as compared with the case where the adhesive tape or the adhesive is used as the locking member.
• the locking force will not be weakened even if the grease from the hand adheres. Further, even if the underwear or the like is touched unnecessarily during the mounting process, the locking force does not weaken and the role as a locking member can be maintained for a long time.
• Examples of the member forming the locking portion 37 include an adhesive material and a mechanical locking member.
• the adhesive material for example, a seal coated with a hot melt adhesive or a gel adhesive can be used.
• surface fastener can be illustrated.
• the engaging portion 37 is formed of a hook material
• a male material of a hook-and-loop fastener can be used.
• a hook material having a hook pin shape in the hook material or a hook material having directionality can be used.
• the hook material having directionality is a hook material in which a plurality of pins engaging with fibers in the hook material have a predetermined directionality.
• the hook material is fixed to the base material of the hook material with a plurality of pins of the hook material inclined at a predetermined angle.
• the hook material having directionality is engaged by pressing the hook material against the locked body.
• Hook material The movement in the direction in which the pin tilts is restricted, and the movement in the direction opposite to the direction in which the pin tilts is not restricted. That is, when the pin as the predetermined direction is pulled in a tilting direction, the pin is not moved, but when the pin is moved in a direction opposite to the tilting direction as the predetermined direction, the engagement is released and moved.
• the hook material is arranged so that the direction in which the plurality of pins are inclined faces the fixed portion 4 side of the top absorbent body 3. Therefore, when the top absorbent body 3 and the locking part 37 are brought into contact with the base absorbent body 2, the locking part 37 is pulled in the direction in which the pin tilts due to the tension generated by the bending of the base absorbent body 2. Movement is restricted. Further, when the top absorbent body 3 is pulled outward, the locking portion 37 is pulled in a direction opposite to the direction in which the pin is inclined, so that the locking is released and moved.
• the locking portion 37 does not weaken the locking force even if it is attached and detached a plurality of times.
• a locked body suitable for a member used in the locking portion 37 may be disposed in a region where the locking portion 37 is assumed to come into contact with the base absorbent body 2.
• the locking force it is possible to prevent the locking force from being lowered by attaching / detaching the locking part 37 a plurality of times.
• a release film can be disposed. By bringing the locking portion 37 into contact with the release film before mounting, it is possible to prevent the adhesive force from being lowered due to fibers or the like adhering to the locking portion 37.
• a hook material is used for the locking portion 37
• the locking portion 37 contacts the base absorbent body 2 before being attached to the body or the locking portion contacts after the mounting.
• a female material such as a hook material can be disposed in the region. Even if the hook material is attached and detached multiple times, the locking force is unlikely to weaken, but when releasing the lock, the pin constituting the hook material may come off, or the fiber in the part where the hook material abuts may be damaged. is there. If the hook material female material is placed in the area where the locking part 37 comes into contact with the absorbent product 1 before mounting, the hook material pin may come off or the fiber where the hook material comes into contact may be damaged. Can be prevented.
• the locking portion 37 can also serve as the temporary fixing portion 5.
• the temporary fixing portion 5 is not formed, and the locking portion 37 is preliminarily forced to be locked to the base absorbent body 2 so that it can also serve as the temporary fixing portion.
• the members constituting the locking portion 37 are directional. It is preferable to use hook material with It is possible to release the lock easily and without damaging the locked body, and it is possible to suppress a decrease in the locking force even when locking is performed again.
• the process of forming the temporary fixing portion 5 is not required during manufacturing, which contributes to cost reduction.
• the base absorbent body 2 is formed in a substantially rectangular shape as shown in FIGS. 1 and 3A, 3B, 3C, and 4, and includes a liquid-permeable top sheet 27, a liquid-impermeable back sheet 29, A liquid-retaining absorbent 28 is provided between the top sheet 27 and the back sheet 29.
• a band-shaped central portion 20 is formed along the longitudinal direction LD substantially at the center in the width direction WD of the base absorbent body 2 and substantially in the center in the width direction WD of the base absorbent body 2.
• the top absorbent body 3 is disposed in the central portion 20. Further, gathers 21A and 21B are formed on both sides of the central portion 20 in the width direction WD.
• the gathers 21A and 21B abut against the groin and suppress leakage of menstrual blood and the like that flows along the surface of the body without being absorbed by the top absorbent body 3.
• wings 23A and 23B are formed on both sides of the width direction WD in the absorbent article 1 so as to protrude outward in the width direction WD.
• the base absorbent body 2 is provided with a misalignment preventing portion 26 substantially at the center in the width direction WD on the back surface side which is the other surface.
• wing side misalignment stoppers 25A and 25B are arranged on the back side of the wings 23A and 23B.
• the central portion 20 is formed in a strip shape along the longitudinal direction LD substantially at the center in the width direction WD of the base absorbent body 2.
• the central portion 20 is a thin region that constitutes the base absorbent layer.
• the central portion 20 includes a top sheet 27, a back sheet 29, and an absorber 28.
• the surface sheet 27 and the absorber 28 are bonded by a hot melt adhesive and joined by a plurality of compressed grooves 22 formed along the longitudinal direction LD.
• topsheet 27 of the central portion 20, the basis weight is formed by through-air nonwoven 30gZm 2.
• the non-woven fabric is formed of 2.2 dtex fibers having a polypropylene core and a polyethylene sheath, and a fiber length of 51 mm. This fiber is preferably coated with a hydrophilic oil agent on the fiber surface.
• Absorbent body 28 is formed by laminating pulverized pulp mixed with a superabsorbent polymer, and tissue (illustrated). Without wrapping). Tissue is formed, for example 15gZm 2.
• the pulverized pulp is preferably arranged in the central portion 20 so that the basis weight differs depending on the location.
• pulverized pulp can be laminated so as to be 500 gZ m 2 .
• a region 202 on both sides in the longitudinal direction LD of the region 201 the pulverized pulp is laminated so that lOOgZm 2.
• the region 203 formed along the longitudinal direction LD on the rear edge 230 side of the region 201 is also laminated so that the pulverized pulp becomes lOOgZm 2 .
• a region 204 in which the pulverized pulp is 300 gZm 2 is formed on the front edge 220 side in the longitudinal direction LD of the region 201.
• pulverized pulp can be laminated and disposed so as to be 200 gZm 2 .
• the superabsorbent polymer is mixed so that the average basis weight of the entire absorbent body 28 is lOgZm 2 , but in each part of the absorbent body 28, the superabsorbent polymer is distributed in proportion to the basis weight of the pulverized pulp. This is because the superabsorbent polymer is uniformly dispersed with the pulverized pulp.
• a compressed groove 22 is formed in the central portion 20.
• the compressed groove 22 is formed by alternately arranging a high compression portion and a low compression portion in the longitudinal direction LD.
• the compressed groove 22 is formed across the front area FA force and the rear area BA in the central portion 20.
• the length in the width direction WD of the compressed groove 22 can be exemplified as 2 mm. Further, the distance in the width direction WD between the adjacent compressed grooves 22 can be 4 mm, for example.
• FIG. 7 As shown in Fig. 7, six compressed grooves are formed in the front region FA.
• a compression groove 223, which will be described later, is formed on the outer side in the width direction WD.
• the compression groove 223 will be described later.
• the compressed grooves 221 and 221 are formed inside the compressed grooves 223 and 223 in the width direction WD.
• the compression grooves 221 and 221 are formed from the front area FA to the rear area BA, and are connected to each other in the rear area BA.
• the compression grooves 221 and 221 are U-shaped that continuously protrude toward the rear edge 230.
• the compressed groove is formed.
• Compressed grooves 222 and 222 are formed inside the compressed grooves 221 and 221 in the width direction WD.
• the compressed grooves 222, 222 are formed linearly from the front area FA to the central area CA.
• the above-described six compressed grooves 221, 222, and 223 are arranged to form end portions of the compressed grooves 224 described later.
• the compression groove 223 is formed from the front area FA to the center area CA, and is formed in a gently curved shape protruding inward in the width direction WD. compression The grooves 223 and 223 are formed so that the distance between them is the narrowest at a position corresponding to the position Z in the longitudinal direction LD. At this position, the above-mentioned six compressed grooves 221, 222, 223 are formed at substantially equal intervals in the width direction WD.
• the compressed groove 224 is as described later.
• a compressed groove 224 In the rear area BA, in addition to the compressed groove 221 formed continuously from the above-described front area FA, a compressed groove 224, a compressed groove 226, and compressed grooves 227 and 227 are formed.
• the compressed groove 224 is formed outside the compressed groove 221. Specifically, it is formed so as to surround the compressed groove 221 formed in a U shape.
• the compressed groove 226 is formed inside the compressed groove 221 so as to extend in the width direction WD. Specifically, the compressed groove 226 is formed on the central area CA side in the rear area BA so as to connect the compressed grooves 221 and 221 spaced apart in the width direction WD. The compressed groove 226 is formed in a U shape with a gentle curve protruding toward the rear edge 230 in the longitudinal direction LD.
• the compressed grooves 227 and 227 are formed to extend in the longitudinal direction LD in a region surrounded by the compressed grooves 221 and 226.
• these compression grooves 22 are integrally formed by compressing the absorber 28 and the top sheet 27, a predetermined rigidity is imparted to the central portion 20. Then, in relation to the rigidity of the top absorbent body 3, when the absorbent article 1 is fixed to the underwear and pulled up, the position of the top absorbent body 3 can be kept from shifting. In other words, if the rigidity of the base absorbent body 2 is too low compared to the rigidity of the top absorbent body 3, the top absorbent body 3 cannot follow the curve of the base absorbent body 2, but the position of the top absorbent body 3 Can be prevented from shifting.
• the gathers 21A and 21B are arranged along the longitudinal direction LD on both sides of the central portion 20.
• the gathers 21A and 21B are formed so that at least a part thereof rises in the thickness direction.
• the gathers 21A and 21B in the present embodiment are centered in the width direction WD in the central portion 20. They are arranged along the longitudinal direction LD at positions separated by about 64 mm.
• the gathers 21A and 21B have fixed end portions 215A and 215B that are movable in the thickness direction. In the mounted state, the end portions 215A and 215B come into contact with the inguinal portion of the body.
• the gathers 21A and 21B are portions that are folded in half so that a nonwoven fabric having a predetermined size that is more hydrophobic than the surface sheet 27 of the central portion 20 is bonded.
• Elastic stretch members 213A and 213B are arranged between the folded nonwoven fabrics (inner side).
• three elastic elastic members 213A and 213B are arranged at substantially equal intervals.
• the elastic elastic members 213A and 213B are made of, for example, a thread rubber of 470 dtex, and are fixed in a state where the elastic elastic members 213A and 213B are extended by about 1.3 times.
• the gathers 21A and 21 can be erected by the force by which the elastic elastic members 213A and 213B expand and contract.
• Both ends of the gathers 21A and 21B in the longitudinal direction LD are folded back to the outside in the width direction WD and fixed by hot melt adhesives 214A, 214B, 214C and 214D.
• the ends of the hot melt adhesives 214A, 214B, 214C, 214D on the inner side in the longitudinal direction LD are the rising points of the gathers 21A, 21B, and the region between the rising points is in a standing state during use. Part.
• the gathers 21A and 21B in the present embodiment can be formed of, for example, a spunbonded nonwoven fabric having a basis weight of 22 gZm 2 formed of a fiber having polypropylene as a core and polyethylene as a sheath.
• the dimensions of the gathers 21A and 21B can be appropriately changed according to the size of the base absorbent body 2. Further, the stress of the elastic elastic members 213A and 213B can be determined by the thickness and number of thread rubbers used and the stretching magnification, but can be appropriately changed depending on the size of the base absorbent body 2. In this case, it is important that the gathers 21A and 21B do not impair the touch when they come into contact with the skin.
• the shape of the cross-section WD in the width direction of the gathers 21A and 21B is the free end of the gathers 21A and 21B so as to face the outside in the width direction WD of the base absorbent body 2 as shown in FIG. Is placed.
• the fixed root portion in Gather 21 A, 2 IB is within the width direction WD.
• the ends of the gathers 21A and 21B are arranged so as to face outward in the width direction WD at the center in the length (height) of the gathers 21A and 21B.
• the gathers 21A, 21B are not limited to the force formed by being folded once.
• the gathers 21A and 21B may be folded three times so that the free end has a substantially bowl-shaped cross-sectional shape with the width direction WD outside of the base absorbent body 2 facing outward.
• the gathers 21 A and 21 B may be arranged with the free end directed inward in the width direction WD of the base absorbent body 2.
• the rising start points of the gathers 21A and 21B in the front area FA and the rear edge side end portion of the fixing portion 4 are not in the same position in the longitudinal direction LD. More preferably, the rear edge 230 side end portion of the fixing portion 4 is preferably disposed on the rear edge 230 side with respect to the standing start points of the gathers 21A and 21B. This is because the rising start point of gathers 21A and 21B is the part where the elastic expansion and contraction members 213A and 213B are expanded and contracted, and the end part on the rear edge 230 side of the fixed part 4 is connected to the top absorbent body 3 from the base absorbent body 2. This is to prevent the positions where these two forces are applied from being the same because they become portions where force is applied when they are separated.
• a back sheet 29 of a liquid-impermeable sheet can be disposed on the surface of the base absorbent body 2 opposite to the side on which the top absorbent body 3 is disposed.
• Wings 23A and 23B are formed on both sides of the width direction WD of the absorbent article 1 so as to protrude outward in the width direction WD.
• the wings 23A and 23B are formed so as to extend outward in the width direction WD of the base absorbent body 2 due to the non-woven force that forms the back sheet 29 and the gathers 21A and 21B of the liquid-impermeable sheet.
• the back sheet 29 and the nonwoven fabric are bonded to each other with a hot melt adhesive.
• the wing side misalignment stop portions 25A and 25B are provided on the underwear side surfaces of the wings 23A and 23B. Then, the entire absorbent article 1 can be fixed to the underwear by turning the wings 23A and 23B back to the underwear and sticking the wing-side misalignment preventing portions 25A and 25B to the underwear.
• the distance from the position Z to the front edge 220, which is the front edge in the longitudinal direction LD, is an example.
• 110 mm can be exemplified.
• the distance from the position Z force to the rear edge 230 can be exemplified by 22 Omm.
• the length in the width direction WD of the central portion 20 in the base absorbent body 2 is, for example, 70 mm, 120 mm, preferably 80 mm to 11 Omm, excluding the wings 23A and 23B.
• 110 mm can be exemplified.
• the length of the width direction WD including the wings 23A and 23B of the base absorbent body 2 is 200 mm from 120 forces, preferably 140 to 18 Omm.
• the length of the width direction WD including the wings 23A and 23B in the first embodiment can be exemplified by 160 mm, for example.
• the length of the width direction WD in the base absorbent body 2 is preferably 1.5 to 7 times the width of the top absorbent portion 30 and more preferably 2 to 5 times.
• the length of the base absorbent body 2 in the longitudinal direction LD is, for example, 250 mm, 500 mm, and preferably 270 to 450 mm.
• the length of the longitudinal direction LD in the first embodiment can be exemplified as 330 mm, for example.
• the length of the width direction WD excluding the wings 23A and 23B of the base absorbent body 2 is, for example, 120 mm from 70 mm force, preferably 80 mm to 110 mm.
• the absorbent article 1 can be manufactured, for example, by including the following procedure.
• the base absorbent body 2 is formed by laminating the topsheet 27 and the absorbent body 28 and press-bonding them with an embossing roll having a predetermined pattern from the absorbent body 28 side, thereby forming the compressed grooves 22 and pressing them together.
• the base absorbent body 2 is formed by laminating and arranging a liquid-permeable back sheet 29 on the surface of the absorbent body 28 opposite to the top sheet 27 and bonding with a hot melt adhesive.
• the top absorbent body 3 first, the elongated absorbent body 35, the second sheet 332, and the back sheet 34 are arranged at predetermined positions, and the top absorbent section 30 is formed so as to be wrapped by the top sheet 331. Next, a region where the absorber 35 is not disposed at one end of both ends in the longitudinal direction LD is embossed to form a handle 40. Further, a hot melt adhesive is applied to the other end side and bonded to the front area FA of the base absorbent body 2 so as to be bonded.
• a region formed only by the top sheet 331 and the back sheet 34 on the free end 31 side of the top absorbent body 3, and the rear edge 230 side of the base absorbent body 2 on the front sheet 27 and A temporary fixing portion 5 is formed by performing heat treatment by embossing on a region overlapping with a region formed only by the back sheet 29. At the same time, heat treatment by embossing is also performed in the region where only the top sheet 27 and the back sheet 29 on the front edge 220 side of the base absorbent body 2 and the top absorbent body 3 overlap each other, thereby performing top absorption. Fix body 3 to base absorbent body 2.
• the absorbent article 1 is in a state where the top absorbent body 3 is placed on the upper surface of the base absorbent body 2.
• the top absorbent body 3 is disposed in the center portion 20 of the base absorbent body 2 along the longitudinal direction LD. Further, the top absorbent body 3 is temporarily fixed to the base absorbent body 2 by the temporary fixing portions 5 and 5.
• the entire absorbent article 1 is configured so as to be deformed into a gentle U shape as a whole along a curve near the body's excretion opening.
• the absorbent article 1 is placed in the crotch portion of the underwear. Then, as with ordinary absorbent articles, the wings 23A and 23B are folded back so as to wrap the undergarment where they are placed. The absorbent article 1 is fixed to the undergarment by the wing side misalignment stoppers 25A and 25B arranged on the back surfaces of the wings 23A and 23B. Then, the absorbent article 1 is pulled up to the body side together with the underwear in a state where the top absorbent body 3 is disposed on the upper surface of the base absorbent body 2. Here, since the top absorbent body 3 is temporarily fixed by the temporary fixing portion 5, the top absorbent body 3 is not separated from the base absorbent body 2 until the temporary fix is released in the mounting process.
• the temporary fixing is released by the temporary fixing portion 5, so that the top absorbent core 3 Separated from collector 2.
• the locking portion 37 that has been in the protected state until now is exposed and enters the stage of preparation for locking the locked body.
• the top absorbent body 3 separated from the base absorbent body 2 is moved so as to enter the crack starting from the fixing portion 4. That is, the top absorbent body 3 is separated from the base absorbent body 2 by pulling up the handle part 40 held by the user. Then, the top absorbent body 3 is moved so as to contact the excretion opening and enter the fissure.
• the top absorbent body 3 arranged so as to enter the crack is locked to the surface of the base absorbent body 2 by a locking portion 37 arranged on the free end side.
• the hooking part 37 can be locked by operating the pressing part 37 against the surface of the base absorbent body 2.
• a plurality of pins of the hook material constituting the locking portion 37 are engaged with fibers such as a nonwoven fabric forming the base absorbent body 2.
• the top absorbent body 3 is brought into contact with the body with a predetermined tension by the fixing portion 4 and the locking portion 37.
• the position where the locking part 37 is locked is closer to the rear edge 230 than the position of the locking part 37 when the top absorbent body 3 and the base absorbent body 2 are substantially planar.
• the position of the locked part in the base absorbent body 2 is the outer edge side in the longitudinal direction from the position of the locking part 37 when the top absorbent body 3 and the base absorbent body 2 are mounted in a substantially planar shape. (Back edge 230 side).
• the gripped handle portion 40 it is possible to lock only by releasing the gripped handle portion 40. Specifically, when the grip portion 40 is released, the tension is released by the fixing portion 4 and the grip portion 40 held, and the top absorbent body 3 is pulled toward the front edge 220 side. At this time, since the top absorbent body 3 is located between the undergarment that is the clothing and the body, the base absorbent body 2 contact surface of the top absorbent body 3 slides on the surface of the base absorbent body 2.
• the locking portion 37 similarly slides on the surface of the base absorbent body 2 toward the fixed portion 4 side while being pressed by the body and the undergarment. The hook material is locked by pressing the locking portion 37 against the surface of the base absorbent body 2, and the movement toward the fixed portion 4 is restricted by the hook material having directionality.
• the top absorbent core 3 is maintained in the position adjusted by the user. Specifically, the top absorbent body 3 is placed on the body with a predetermined tension by the fixing portion 4 and the locking portion 37. Since the contact is made, a predetermined force is always applied to the top absorbent body 3 in the direction of contact with the body. That is, the top absorbent body 3 is fixed so as to maintain a state in contact with the body.
• the position can be readjusted even after the top absorbent core 3 is locked as described above. That is, the user can grasp the handle portion 40 with the back side force of the body and pull it toward the rear edge 230 of the base absorbent body 2 to release the lock by the lock portion 37, thus allowing movement. Then, after the position of the top absorbent body 3 is adjusted, it can be re-locked as described above.
• the back sheet 34 disposed on the base absorbent side contact surface side in the top absorbent 3 prevents leakage of menstrual blood absorbed by the top absorbent 3.
• the free absorbent end 32 side of the top absorbent part 30 protrudes outward from the rear edge 230 of the base absorbent body 2. Since the back sheet 34 is arranged in the protruding region, even if menstrual blood or the like has been transmitted to the free end portion 32 side of the top absorbent core 3, menstrual blood or the like is prevented from adhering to the underwear.
• the top absorbent body 3 arranged so as to come into contact with the excretion opening and enter the crack deforms so as to follow the shape of the excretion opening.
• the absorbent body 35 of the top absorbent body 3 has a basis weight that differs depending on the place where it is placed. Deformed to More specifically, the region 357 formed in the substantially center of the width direction WD of the top absorbent portion 30 is arranged so that the weight of the absorbent body 35 is lower than the surrounding area. For this reason, the region 357 portion becomes a folding start point, and is deformed into a mountain shape with the region 357 as the apex as the top absorbent core 3 is arranged so as to enter the crack.
• Region 357 is formed to correspond to the region from the perineum to the anus in the body when the top absorbent body 3 is applied to the rupture. Therefore, the top absorbent body 3 is formed so as to be able to enter the deepest part of the crack. As described above, the top absorbent body 3 is deformed according to the shape of the excretory opening or the like as described above, and therefore the top absorbent body 3 is disposed so as to be in close contact with the excretion opening or the like. The top absorbent body 3 is arranged without a gap with the body. That is, the top absorbent body 3 is disposed so as to contact the excretion opening and directly absorb menstrual blood and the like, and to prevent menstrual blood and the like from flowing out along the body surface.
• the base absorbent body 2 absorbs a predetermined liquid that cannot be absorbed by the top absorbent body 3 alone.
• the liquid that cannot be absorbed by the top absorbent 3 is absorbed by the absorbent 28 of the base absorbent 2 through the portion where the top absorbent 3 and the base absorbent 2 are in contact.
• the predetermined liquid absorbed by the base absorbent body 2 is prevented from soaking into the undergarment by the liquid-impermeable back sheet 29 and is held by the absorbent body 28 of the base absorbent body 2.
• the absorbent article 1 is in a state where the top absorbent body 3 is not separated from the base absorbent body 2.
• the top absorbent body 3 is separated from the base absorbent body 2 with the fixing portion 4 as a starting point, and therefore can be operated independently of the base absorbent body 2. Accordingly, the degree of freedom in which the top absorbent body 3 can move is increased, and the absorbent body can be kept in close contact with the body without being affected by the movement of the clothes on which the base absorbent body 2 is arranged.
• the top absorbent body 3 and the base absorbent body 2 are fixed by the fixing portion 4, so that the top absorbent body 3 and the base absorbent body 2 are not completely separated from each other. For this reason, when the absorbent article 1 is removed from the body, the top absorbent body 3 is released by simply pulling the underwear to which the base absorbent body 2 is fixed from the body.
• the top absorbent body 3 can maintain the position adjusted at the time of attachment by engaging the locking portion 37 with the base absorbent body 2 at the time of attachment. As a result, the top absorbent body 3 can be kept in close contact with the body. Therefore, it is possible to suitably absorb liquid such as menstrual blood excreted from the excretion opening, and to prevent the liquid from leaking through the body.
• the locking portion 37 is locked to the surface of the base absorbent body 2, so that the locking position and the locking target can be specified. For this reason, it becomes easy to select a locking member.
• the locking target can be specified, it is possible to avoid a state in which the locking portion 37 cannot be locked due to a difference in locking target.
• the top absorbent core 3 has a basis weight due to the difference in basis weight of the absorbent body 35. It is transformed starting from the difference. Specifically, the top absorbent body 3 can be deformed along the shape of the excretion or rupture. The top absorbent body 3 can be deformed so as to be in close contact with the excretion opening such as the vaginal opening. In particular, the formation of a low-weighted portion at the approximate center of the width direction WD of the top absorbent portion 30 prevents the top absorbent body 3 from being deformed to be bent starting from a position that is not the center of the width direction WD. it can.
• the top absorbent body 3 can be brought into contact with the back of the rupture, which is the portion to be most closely attached. For this reason, it is possible to suppress leakage.
• the temporary fixing portion 5 restricts the movement of the top absorbent body 3 until the temporary fixing by the temporary fixing portion 5 is released. For this reason, when the user adjusts the position of the top absorbent body 3, the top absorbent body 3 is fixed at a specific position, so that the position of the handle 40 arranged at the end of the top absorbent body 3 is grasped. It becomes easy to do.
• the temporary fixing portion 5 restricts the movement of the top absorbent body 3.
• the absorbent article 1 provides two methods of use. That is, in the first usage method, the temporary fixing by the temporary fixing portion 5 is released, the free end 31 of the top absorbent body 3 is separated from the base absorbent body 2, and the top absorbent body 3 is adhered to the crack. it can.
• the absorbent article 1 can be used while the top absorbent core 3 is temporarily fixed to the base absorbent body 2 without releasing the temporary fix by the temporary fixing portion 5.
• the absorbent article 1 can be appropriately selected on the spot by the user as to how to use it. As a result, it is not necessary to use multiple types of absorbent articles, so it is possible to reduce the user's housing inventory.
• the locking portion 37 is not exposed to the outer surface, so that the user or the like touches the locking portion 37. Can be suppressed.
• the handle part 40 is arranged on the outer edge side of the base absorbent body 2 with respect to the locking part 37, the user holds the handle part 40 in the mounting operation. Thereby, it is possible to prevent the user from touching the locking portion 37 even during the mounting operation.
• the outer edge of the handle part 40 extends from the rear edge 230 of the base absorbent body 2, the user is guided to grip the extended part of the handle part 40 in the mounting operation. This further suppresses the user from touching the locking portion 37 during the mounting operation.
• the second to fifth embodiments will be described with reference to FIGS.
• the second to fifth embodiments are other embodiments of the locking means.
• parts that are not particularly described are the same as those in the first embodiment, and the same reference numerals are given to the numbers given in the drawings if they are the same as those in the first embodiment.
• FIGS. 12A and 12B the absorbent article in the second embodiment is different from the first embodiment in the aspect of the locking portion 37A and the locked portion.
• FIG. 12A is an enlarged plan view on the rear edge 230 side of the base absorbent body 2A in the second embodiment.
• FIG. 12B is an enlarged back view on the free end 31 side of the top absorbent core 3A in the second embodiment.
• the locking portion 37A is formed in a substantially vertically long shape, and is disposed on the free end 31 side of the top absorbent body 3 along the width direction WD. More specifically, when the top absorbent body 3A and the base absorbent body 2A are substantially planar, the position does not come into contact with the locked portion 8A, which will be described later, and the position of the top absorbent body 3A corresponds to the base absorbent body 2A. It is arranged along the width direction WD on the contact surface side.
• a locked portion 8 A serving as a base absorbent side locked portion is disposed on the rear edge 230 side of the base absorbent body 2.
• the locked portion 8A is substantially the same as the length in the width direction WD of the center portion 20, and is fixed to the center portion 20 so as to cross the center portion 20 in the width direction WD.
• both side portions of the locked portion 8A extending along the longitudinal direction LD are not fixed to the central portion 20, and both ends in the longitudinal direction LD are fixed so as to cross the width direction WD.
• a temporary fixing sheet 81A is disposed adjacent to the inner side in the longitudinal direction LD of the locked portion 8A in the base absorbent body 2A.
• the temporary fixing sheet 81A is disposed in a region where the locking portion 37A that serves as the locking portion on the top absorbent body abuts when the base absorbent body 2A and the top absorbent body 3A are substantially planar.
• the member used for the locked portion 8A can be arbitrarily selected by, for example, a combination with a member forming the locking portion 37A.
• the locking portion 37A is formed of a hook material, a known nonwoven fabric, a surface material similar to the surface sheet 27 in the first embodiment, or a loop material can be exemplified.
• the locking portion 37A is formed of a force hook material, it is preferably an elastic member that can be expanded and contracted. Specifically, a material having a stretchability of 3% to 50%, preferably 5% to 20% with respect to the distance from the fixing portion 4 to the locking portion 37A in the longitudinal direction LD of the base absorbent body 2A is desirable.
• the elastic member preferably has an expansion / contraction ratio of 1.05 to 3 times, preferably 1.1 to 2.5 times, and more preferably 1.2 to 2.0 times.
• Examples of the elastic member include a non-woven fabric having elasticity, and a non-woven fabric bonded so as to sandwich an elastic member such as thread rubber.
• various materials such as a nonwoven fabric in which the fibers themselves forming the nonwoven fabric are formed of stretchable fibers can be used.
• an elastic nonwoven fabric obtained by gear stretching can be exemplified. Specifically, it can be formed of a spunbond type nonwoven fabric in which polyurethane long fibers and polypropylene long fibers are mixed. For example, a polyurethane fiber and a polypropylene fiber are mixed at 50:50, and a non-woven fabric having a basis weight of 35 g / m 2 is subjected to a gear stretch force check so as to have a double expansion / contraction range in the longitudinal direction LD. be able to.
• the locked portion 8A can be formed of a release film.
• the temporary fixing sheet 81A is formed of a member whose locking force is weaker than the locking portion 37A is locked to the locked portion 8A.
• a suitable member can be selected according to the member used in the locking portion 37A.
• the temporary fixing sheet 81A As a member used for the temporary fixing sheet 81A, for example, when the locking portion 37A is formed of an adhesive, it can be formed of a release film. Further, when the locking portion 37A is formed of a hook material, the temporary fixing sheet 81A can be exemplified by a non-woven fabric or an embossed treatment that makes the surface of the non-woven fabric smooth. Further, the locking portion 37A is In the case of being formed of a hook material having directionality, the temporary fixing sheet 81A can be formed of the same non-woven fabric or loop material as the top sheet 331 in the first embodiment.
• the loop material is a member in which fibers are fixed to the surface of a base material constituting the loop material so as to form a loop. Specifically, the female material of a hook_and_loop
• the length of the locked portion 8A in the width direction WD of the base absorbent body 2B is preferably 2 to 15 cm, and more preferably 3 to 8 cm. If the length of the width direction WD in the locked portion 8B is less than 2 cm, the area where the locking portion 37B can contact the locked portion 8 becomes small, and may not be locked during mounting. If it is 15 cm or more, the width of the base absorbent body 2B will be exceeded.
• the length of the locked portion 8A in the width direction WD is 2 cm to 15 cm, preferably 3 cm, and the force is preferably 8 cm. If the distance is less than 2 cm, the area where the locking portion 37A can abut on the locked portion 8A is reduced.
• the length in the longitudinal direction LD and the length in the width direction WD of the temporary fixing sheet 81A are substantially the same as or the length in the longitudinal direction LD of the locking portion 37A and the length in the Z or width direction WD. It can be formed to be longer.
• the temporary fixing sheet 81A is preferably formed so that the locking portion 37A does not protrude from the temporary fixing sheet 81A when the locking portion 37A is in contact with the temporary fixing sheet 81A. ! /
• the base absorbent body 2A is not limited to the force provided with the temporary fixing sheet 81A, and may not include the temporary fixing sheet 81A.
• the locking portion 37A is formed of a hook material, it can be temporarily locked by locking to the surface material of the base absorbent body 2A.
• the temporary fixing sheet 81A and the locked portion 8A are different from each other.
• the present invention is not limited to this.
• the locking portion 37A is formed of a directional hook or an adhesive material
• the temporary fixing sheet 81A and the locked portion 8A can use the same member.
• FIGS. 13A and 13B the absorbent article in the third embodiment is different from the first embodiment in the aspect of the locking portion 37B and the locked portion 8B.
• FIG. 13A shows the third embodiment. 4 is an enlarged plan view of a rear edge 230 side of the base absorbent body 2B.
• FIG. 13B is an enlarged rear view of the free absorbent 31 side of the top absorbent core 3B in the third embodiment.
• a locking portion 37B and an elastic member 82B are disposed on the base absorbent body 2B.
• the elastic member 82B is disposed on the top absorbent body 3B contact surface side of the base absorbent body 2B
• the locking portion 37B is disposed on the top absorbent body 3B contact surface side of the elastic member 82B.
• the locking portion 37B is disposed so as to cross the width direction WD substantially at the center in the longitudinal direction LD of the elastic member 82B.
• the elastic member 82B has a length substantially the same as the length in the width direction WD of the central portion 20, and both end portions in the longitudinal direction LD of the base absorbent body 2B cross the central portion 20 in the width direction WD. Fixed to the central portion 20. Further, both side portions extending along the longitudinal direction LD of the elastic member 82B are not fixed to the central portion 20, and both ends in the longitudinal direction LD are fixed to the width direction WD.
• an elastic member similar to the locked portion 8A in the second embodiment can be used.
• the temporary fastening sheet 81B is disposed in a region where the engaging portion 37B contacts when the base absorbent body 2B and the top absorbent body 3B are substantially planar. In a state before the absorbent article 1B is used, the locking portion 37B is locked to the temporary fixing sheet 81B and is temporarily fixed.
• the locking portion 37B is preferably formed in a substantially vertically long shape by a hook material or the like. Specifically, the same member as the hook material in the first embodiment can be used. If the base absorbent body 2B contact surface side of the top absorbent body 3B is a non-woven fabric, the entire surface of the top absorbent body 3B can be used as the locked portion 8B.
• the locking portion 37B serves as a base absorbent side locking portion, and the base absorbent body contact surface side of the top absorbent core 3B serves as a top absorbent side locked portion. Also.
• the position locked by the locking portion 37B is closer to the outer edge side in the longitudinal direction LD than the position of the locking portion 37B when the top absorbent body 3B and the base absorbent body 2B are substantially planar.
• the absorbent article in the fourth embodiment includes the locking portion 37C and The aspect of the locked portion 8C is different from that of the first embodiment.
• FIG. 14A is an enlarged plan view of the rear edge 230 side of the base absorbent body 2 in the fourth embodiment.
• FIG. 14B is an enlarged back side view of the top absorbent body 3C according to the fourth embodiment on the free end 31 side.
• the locking portion 37C is formed in a substantially vertically long shape, and is disposed on the top absorbent core 3C. Specifically, the locking portion 37C is disposed on the base absorbent body contact surface side of the top absorbent body 3C and along the longitudinal direction LD of the top absorbent body 3C. More specifically, an elastic member 82C can be disposed between the locking portion 37C and the top absorbent body 3C. Specifically, the elastic member 82C is disposed on the base absorbent body contact surface side of the top absorbent body 3C, and the locking portion 37C, which is a top absorbent side locking section, is provided on the top absorbent body contact surface side of the elastic member 82C. Be placed.
• the elastic member 82C is substantially the same as the length of the top absorbent body 3 in the width direction WD.
• the elastic member 82C is fixed along the width direction WD of the top absorbent body 3, and both side portions in the longitudinal direction LD are not fixed.
• the member forming the elastic member 82C for example, the same member as the member described in the locked portion 8A in the second embodiment can be used.
• the member forming the locking portion 37C is preferably a hook material.
• the top absorbent body contact surface side of the base absorbent body 2C is formed with a member that can be locked with a hook material such as a nonwoven fabric! The entire contact surface becomes the locked portion 8C (FIG. 14A).
• the locking portion 37C is locked to the top absorbent body-side contact surface of the base absorbent body 2. That is, the top absorbent body-side contact surface of the base absorbent body 2 becomes the locked portion 8C.
• the position to be locked (the base absorber-side locked portion) is larger than the position of the locking portion 37C when the top absorbent body 3C and the base absorbent body 2 are mounted in a substantially planar shape. This is the outer edge side (rear edge 230 side) in the longitudinal direction LD.
• the top absorbent portion 30C includes the elastic member 82C, but is not limited thereto.
• the elastic member 82C may be disposed so that the end portion on the free end 31 side covers up to a part of the handle portion 40. That is, the elastic member 82C may be disposed so as to straddle the vicinity of the top absorbent portion 30 side of the handle portion 40 and the top absorbent portion 30 on the surface of the top absorbent body 3C on the base absorbent body 2 contact surface side. ,. [0187] 2-4. Fifth Embodiment
• FIGS. 15A and 15B the absorbent article in the fifth embodiment is different from the first embodiment in the aspect of the locking portion 37D and the locked portion 8D.
• FIG. 15A is an enlarged plan view of the rear edge 230 side of the base absorbent body 2D in the fifth embodiment.
• FIG. 15B is an enlarged back view of the top absorber 3D on the free end 31 side in the fifth embodiment.
• the locking portion 37D in the fifth embodiment is disposed on the base absorbent body 2D. Specifically, for example, Omm to 100mm is preferable from the rear edge 230 side of the base absorbent body 2D, and more preferably, it is disposed at a position of 20mm to 80mm.
• the locking portion 37D is preferably formed and arranged in a substantially vertical shape along the longitudinal direction LD of the base absorbent body 2D.
• the locking portion 37D may be arranged so as to cross the central portion 20 in the width direction WD.
• the length of the locking portion 37D in the longitudinal direction LD is 5 to 100 mm, preferably 10 mm and the force is 80 mm. Further, the length of the locking portion 37D in the width direction WD may be 5 mm to 80 mm, preferably 7.5 mm to 60 mm.
• the same member as the locking portion 37 illustrated in the first embodiment can be used.
• the locked portion 8D is disposed on the top absorbent core 3D. Specifically, the locked portion 8D is disposed on the base absorber contact surface side of the top absorbing portion 30D and in the vicinity of the free end portion 32. More specifically, the top absorbent portion 30D is disposed on the base absorbent body contact surface side so as to cover the free end portion 32 side of the absorbent body 35. In the case where the length of the longitudinal LD is greater than 15 cm V, it cannot be absorbed by the top absorbent 3D, and it will inhibit the excretion from being transferred to the base absorbent 2D.
• the back sheet 34 arranged in the rear region of the top absorbent portion 30 in the first embodiment may not be arranged.
• the locked portion 8D for example, a loop material including a liquid-impermeable sheet can be exemplified.
• the locked portion 8D By forming the locked portion 8D with a loop material including a liquid-impermeable sheet, the locked portion 37D can be locked when it comes into contact with the locked portion 8D, and the top portion is secured. The oozing of the liquid from the contact surface of the base absorbent body 2 in the absorbent body 3 is suppressed.
• the locking portion 37D serving as the base absorber-side locking portion is a portion of the locked portion 8D serving as the top absorber-side locked portion when the top absorbent body 3D and the base absorbent body 2D are substantially planar. It is arranged on the outer edge side (rear edge 230 side) in the longitudinal direction LD from the position.
• the absorbent article 1F in the sixth embodiment differs from the first embodiment in the aspect of the handle portion 40F.
• the handle part 40F includes, for example, a liquid-impermeable handle part surface sheet 42F and a handle part back sheet 43F on both surfaces of the handle part 40F.
• the handle 40F is laminated so that the end of the region formed only by the top sheet 331 and the back sheet 34 of the top absorbent part 30F is sandwiched between the handle top sheet 42F and the handle back sheet 43F. And crimped by an embossing cage.
• Each layer to be laminated is preferably bonded with a hot melt adhesive.
• the handle portion surface sheet 42F is disposed on the skin contact surface side of the handle portion 40F.
• a sheet having liquid-impermeable irregularities can be used as the handle surface sheet 42F. If a smooth sheet such as a film with no irregularities is used, it may become damp and uncomfortable when worn.
• the sheet material include non-woven fabrics made of hydrophobic fibers, such as spunlace, spunbond, melt blown, needle punch, and air-through. From the viewpoint of imparting rigidity to the handle portion 40F, SMS nonwoven fabric is preferred.
• the handle back sheet 43F is not particularly limited as a sheet material. Nonwoven fabrics and films exemplified above can be used. Preferably, any material can be used as long as it is bonded to the handle surface sheet 42F and can give rigidity to the handle 40F. Also, the handle part back sheet 43F is not an essential component, and the handle part surface sheet 42F alone should be used to form the handle part 40F.
• the handle surface sheet 42F and the handle back sheet 43F can be embossed. Embossing can give rigidity without using SMS nonwoven fabric. In addition, by forming irregularities on the surface of the handle part top sheet 42F and the handle part back sheet 43F, it can be a clue when the user searches for the handle part 40F.
• the handle portion surface sheet 42F may be provided with a locking portion 37F on the skin contact surface side.
• the locking portion 37F is formed of an adhesive material and can be attached mainly to the body. In the present embodiment, it may be provided together with the locking portion 37 or only the locking portion 37F.
• the absorbent article 1J in the seventh embodiment differs from the first embodiment in the shape of the handle portion 40J.
• the shape of the handle portion 40J can be formed in a wave shape on the side in the longitudinal direction LD.
• the absorbent article 1K according to the eleventh embodiment includes a top absorbent body 3K having a surface layer 33K composed of a top sheet 331 and a back sheet 34, and a handle portion 4 OK and a top absorbent body.
• 3K is connected by an elastic member 36K.
• the elastic member 36K is connected to the free end portion 32 of the top absorbent portion 3 OK at one end so as to extend to the outside, and at the other end, the handle portion Concatenated with 40K.
• the top sheet 331 is arranged on the skin contact surface side of the top absorbent body 3K, and the base absorbent body 2 in the top absorbent body 3K.
• the back sheet 34 is disposed on the entire surface. The top sheet 331 and the back sheet 34 are fixed by embossing on both sides of the top absorbent portion 30K along the longitudinal direction LD.
• Both ends in the longitudinal direction LD of the top absorbent portion 30K are regions formed by only the top sheet 331 and the back sheet 34 on the free end 31 side without the absorber 28.
• the front absorbent body 3K is positioned forward when the top absorbent body 3K is disposed on the base absorbent body 2.
• the region on the edge 220 side is the fixed portion 4, and the region arranged on the rear edge 230 side is the free end 31.
• the elastic member 36K has a range of 3% to 50%, preferably 5% to 20% with respect to the length in the longitudinal direction LD from the fixing portion 4 to the locking portion 37K (not shown) in the top absorbent body 3K.
• U preferred to place a stretchy material, in the range of. By placing such materials, it is possible to reduce the feeling of pressure on the body.
• the member exemplified in the locked portion 8B in the third embodiment can be used as a member that can form the elastic member 36K.
• one end of the elastic member 36K on the side of the top absorbent portion 30K is stacked so that the elastic member 36K is sandwiched between the top sheet 331 and the back sheet 34K of the top absorbent portion 30.
• the top sheet 331, the back sheet 34, and the elastic member 36K are pressure-bonded.
• the handle part 40K is formed of a handle part top sheet 42K and a handle part back sheet 43mm.
• the handle part back sheet 43 mm, the elastic member 36 mm, and the handle part surface sheet 42 mm are stacked in this order, all of which are stacked!
• the gripping part is crimped to form the handle part 40mm.
• the handle part surface sheet 42 and the handle part back sheet 43 can be the same as the handle part surface sheet 42F and the handle part back sheet 43F in the sixth embodiment.
• the elastic member 36 ⁇ may have a relatively short force in the longitudinal direction LD of the top absorbent body 3 ⁇ , and may be longer than the length exemplified in the present embodiment.
• the elastic member 36 ⁇ ⁇ is relatively long, for example, it can be housed by being folded into a bowl shape below the top absorbent core 3 ⁇ .
• the handle part 40 ⁇ can be provided with an indicator 41K which is a guide element indicating a predetermined operation or the like. Specifically, the indicator 41K is arranged in a visible manner. The indicator 41K can be the same as the indicator 41G in the eighth embodiment.
• the indicator mark sheet 44 ⁇ which is a guide element sheet, and print the indicator mark 41K.
• the indicator mark sheet 44K is a sheet for printing the indicator mark 41K.
• the paper is not creped, the nonwoven fabric is embossed on the surface, and the nonwoven fabric of SMS is laminated with polyethylene. Can be illustrated.
• the indicator sheet 44K does not have to be arranged up to the front end in the longitudinal direction LD of the handle part top sheet 42K and the handle part back sheet 43K. That is, it is preferable that the indicator sheet 44K is completely covered with the handle portion front sheet 42K and the handle portion back sheet 43K. If the indicator sheet 44K is arranged up to the tip, the edge of the tip becomes stiff and may give the user a sense of discomfort.
• the handle part 40K is formed by, for example, laminating and arranging the lower layer force in the order of the handle part back sheet 43K, the elastic member 36mm, the handle part surface sheet 42mm, and laminating all these parts. Is done.
• the indicator sheet 44 it is preferable that the indicator mark sheet 44 ⁇ is laminated between the handle portion rear surface sheet 43 ⁇ and the elastic member 36 ⁇ .
• the locking portion 37 ⁇ can be disposed on the base absorber 2 contact surface side in the handle portion 40 ⁇ and is locked to the base absorber 2. Further, the locking portion 37K ′ can be disposed on the body contact surface side of the handle portion 40 ⁇ and is locked to the user's skin. Further, the locking portions 37 in the first embodiment may be disposed together and used together. Of these locking portions, only one or two may be disposed.
• the inertia member 36 ⁇ can have a function as a buffer portion. For example, even when the body or underwear moves when the absorbent product 1K is worn, the underwear is pulled by the elastic member 36 ⁇ ⁇ extending and contracting following the movement. It is possible to reduce the influence based on a predetermined motion in the body, such as the locking portion 37 ⁇ and the heel or the locking portion 37K ′ being disengaged.
• the locking part 37 ⁇ is disposed on the base absorbent body 2 contact surface side in the handle part 40 ⁇ as in the first embodiment, and is locked to the underwear side when the absorbent article 1K is mounted to absorb the top.
• Body 3 The force for positioning K may be folded back to the underwear contact surface of the base absorbent body 2 and locked to the underwear contact surface side to position the top absorbent body 3 ⁇ .
• the handle portion 40 ⁇ includes the handle portion surface sheet 42 ⁇ , the handle portion rear surface sheet 43 ⁇ , and the indicator mark sheet 44 ⁇ , but is not limited thereto.
• the handle part surface sheet 42 mm may be provided, and the indicator 41K may be formed on the surface of the handle part surface sheet 42 mm.
• the indicator 41K may not be provided. Then, only the elastic member 36 and the handle surface sheet 42 can be joined.
• the temporary fixing portion 5 is formed on the free end portion 32 in the vicinity of the handle portion 40 by dot-like (circular) embossing in the first embodiment. It is not limited to. For example, a plurality of linear or dot-like embosses may be continuously formed along the longitudinal direction LD on both sides of the top absorbent portion 30 in the width direction WD. Further, a plurality of dot-like embosses may be formed on the entire surface of the top absorbent portion 30. Sarakuko is not limited to the dot shape of the embossed shape, and any shape may be used. Also, like the embossing process in the handle part 40 of the first embodiment, a design such as a flower shape is added. Do it! /
• a corresponding portion to be embossed may be formed by pin embossing so as to penetrate the absorbent body 35 of the top absorbent portion 30 and the absorbent body 28 of the base absorbent body 2.
• the force described for the top sheet 27 of 2 is not limited to this.
• the locked portion may be disposed on the top absorbent body 3 side and the locked portion may be disposed on the base absorbent body 2 side.
• a sheet-like member may be disposed on the surface of the base absorbent body 2 in the locked portion, as in the second embodiment. Furthermore, this sheet-like member has elasticity.
• the locked part is a stretchable sheet-like member, the locked part will be extended when the body or underwear moves, and the locking part 37 will also lose its locked part force. It becomes a buffer area to prevent.
• an elastic member may be arranged on the locking portion 37 side as in the third embodiment and the fourth embodiment.
• An elastic member may be disposed between the base absorbent body 2 or the top absorbent body 3 and the locking portion 37.
• the locking portion 37 is locked to the base absorbent body 2 in the mounted state, and is not limited to this.
• the locking portion 37 is locked to the inside of the underwear as a garment disposed outside the absorbent article. May be. Specifically, in a state where the absorbent article 1 is disposed between the body to be worn and the undergarment that is disposed so as to cover the body, the locking portion 37 is engaged with the inner surface of the undergarment. Stopped. In this case, the locking portion 37 is disposed closer to the free end 31 than the position where the locking portion 37 is locked to the base absorbent body 2 described above.
• the base absorbent body 2 has the gathers 21A, 21B and the compressed grooves 22.
• the present invention is not limited to this, and the gathers 21A, 21B and the compressed grooves 22 may not be provided.
• the base absorbent body 2 has six compressed grooves 22 at substantially equal intervals in the width direction WD in the central portion 20, but is not limited thereto.
• the base absorbent body 2 is an annular compression groove extending in the longitudinal direction LD, and a compression groove formed so that a portion corresponding to the width direction WD of the position Z is recessed inside the width direction WD, and the compression groove. In the width direction WD, there may be a gently curved compressed groove formed outside the portion formed so as to be recessed inside the WD.
• the absorber 28 in the base absorbent body 2 has the force S having the punching holes 351, 352 and the areas 353, 354, 355, 356, 357 having different basis weights as shown in FIG.
• the positions and basis weights that are formed are not limited to this, and they may be formed at other positions or may have different basis weights. Further, the absorbent body 28 may have a uniform basis weight in all regions.
• the temporary fixing portion 5 is formed by being crimped to the base absorbent body 2 by an embossing process, but is not limited thereto.
• the temporary fixing portion 5 may be formed of a low-tack hot-melt adhesive such as olefin or a sonic seal.
• the base absorbent body 2 is not limited to the structure of the base absorbent body 2 described above, and a sanitary napkin that is generally sold commercially may be used.
• the overall shape of the base absorbent body 2 is not limited to a substantially rectangular shape, and may be a vertically long shape such as an ellipse.
• the handle part 40 was produced with the structure shown in the following table, and sensory evaluation was performed on hardness (bending rigidity), bending recovery, and hand feeling.
• the hardness evaluation method was preferred when gripping the handle 40 as a sample, and the hardness was scored.
• the handle 40 as a sample was folded in two and folded for 20 hours at 20 ° C and 60% humidity with a load of 20 g / m 2. I left it alone. Then, after releasing the load and leaving it to stand for 1 hour under the same humidity as above, the end of the folded fold was scored with a strength that does not cause a sense of incongruity.
• the handle feeling of the handle 40 was evaluated with respect to the thickness of the handle 40. Specifically, the hand-holding feeling when picking the handle part 40 was preferred, and the score was determined according to the thickness. “HMA” described in Table 1 below is an abbreviation for hot melt adhesive.
• the hardness of the handle 40 is preferably in the range of 0.1 to 1.2 (10 _4 Nm 2 Zm).
• the bend recovery of the handle 40 is preferably 10 (10 _2 N'mZm) or less.
• the thickness of the handle 40 is preferably in the range of 0.5 to 4 mm.

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• Biomedical Technology (AREA)
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• Life Sciences & Earth Sciences (AREA)
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• Absorbent Articles And Supports Therefor (AREA)

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• 2007
  • 2007-07-05 EP EP07768252A patent/EP2044913A1/en not_active Withdrawn
  • 2007-07-05 TW TW096124506A patent/TW200808274A/zh not_active IP Right Cessation
  • 2007-07-05 US US12/307,033 patent/US8333747B2/en not_active Expired - Fee Related
  • 2007-07-05 KR KR1020097002215A patent/KR20090032107A/ko not_active Ceased
  • 2007-07-05 CN CN200780024907.XA patent/CN101484108B/zh not_active Expired - Fee Related
  • 2007-07-05 WO PCT/JP2007/063504 patent/WO2008004636A1/ja not_active Ceased
  • 2007-07-05 JP JP2008523738A patent/JP5139285B2/ja not_active Expired - Fee Related

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