WO2012161023A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2012161023A1 WO2012161023A1 PCT/JP2012/062344 JP2012062344W WO2012161023A1 WO 2012161023 A1 WO2012161023 A1 WO 2012161023A1 JP 2012062344 W JP2012062344 W JP 2012062344W WO 2012161023 A1 WO2012161023 A1 WO 2012161023A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- upper layer
- absorbent article
- width direction
- layer sheet
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F13/51305—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having areas of different permeability
- A61F13/51311—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having areas of different permeability the permeability gradient being in the vertical direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
-
- 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
- A61F13/45—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
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51121—Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
Definitions
- the present invention relates to an absorbent article, and relates to an absorbent article that can enhance the retention of body fluid discharged from an excretion opening.
- Patent Document 1 discloses a sanitary napkin as an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.
- a sanitary napkin having a second sheet between the top sheet and the absorber is described.
- the second sheet of Patent Document 1 is made of a perforated nonwoven fabric or a mesh-like film, and is for quickly transferring body fluid that has passed through the surface sheet to the absorbent body.
- Menstrual blood absorbed in sanitary napkins is more viscous than body fluids such as sweat.
- body fluids such as sweat.
- Such a relatively viscous body fluid is more easily held in a void portion such as a fiber gap than a high-density portion where fibers and the like are densely packed.
- the gap portion of the second sheet is reduced. Therefore, the amount of body fluid to be temporarily reduced is reduced, and if a large amount of body fluid is discharged at once, the body fluid may leak.
- This invention is made
- an absorbent article includes a liquid-permeable top sheet (top sheet 10), a liquid-impermeable back sheet (back sheet 20), and the top sheet and the back sheet.
- An absorbent article (absorbent article 1) having an absorbent body (absorbent body 30) disposed between the liquid-permeable upper layer sheet (upper layer sheet) on the skin contact surface side of the top sheet 70) are joined, and the upper layer sheet is arranged along the longitudinal direction (longitudinal direction L) of the absorbent article at the center in the width direction (width direction W) of the absorbent article, and the wearer A central region (central region A3) including an excretory opening contact region disposed opposite to the excretion port, and in the absorbent article, the top sheet and the upper layer sheet are compressed in the thickness direction.
- Upper layer pressing part (upper layer pressing part 71 Is formed, and at least the top sheet and the absorbent body compressed part compressed in the thickness direction are formed, and the absorbent body compressed part is in the longitudinal direction of the absorbent article on the outer side in the width direction than the upper layer sheet.
- the gist of the present invention is to have a longitudinal squeezing part (longitudinal squeezing part 81) formed along the line.
- FIG. 2 is a schematic cross-sectional view taken along the line AA shown in FIG.
- FIG. 2 is a schematic cross-sectional view taken along the line BB shown in FIG.
- FIG. 1 is a plan view of the absorbent article
- FIG. 2 is a rear view of the absorbent article
- 3 is a cross-sectional view taken along the line AA shown in FIG. 1
- FIG. 4 is a cross-sectional view taken along the line BB shown in FIG.
- the absorbent article 1 according to the present embodiment is, for example, a sanitary napkin.
- the absorbent article according to the embodiment is a sanitary napkin for night use. Therefore, the absorbent article according to the present embodiment is configured such that the rear region located on the rear side of the wearer is longer than the front region located on the front side of the wearer in the longitudinal direction.
- An area between a pair of wing portions described later includes an excretion opening contact area where the wearer's excretion opening comes into contact, and a front side of the area is a front side area, and a rear side of the area is a rear side. It becomes a side area.
- a night sanitary napkin is described as an example, but the absorbent article according to the present invention can also be applied to a day sanitary napkin.
- the sanitary napkin for daytime has a shorter length in the longitudinal direction of the rear region as compared with the sanitary napkin according to the present embodiment.
- the length of the rear region of the daytime sanitary napkin is substantially the same as the length of the front region.
- the absorbent article 1 includes a top sheet 10 that comes into contact with the wearer's skin, a liquid-impermeable back sheet 20 that does not transmit liquid, and an absorber 30.
- the absorber 30 is disposed between the top sheet 10 and the back sheet 20. Therefore, the absorber 30 is shown with a broken line in FIG.1 and FIG.2.
- the absorbent body 30 is disposed at the central portion in the longitudinal direction L and the width direction W of the absorbent article 1.
- a liquid-permeable upper layer sheet is bonded to the skin contact surface side of the top sheet 10.
- the absorbent article 1 includes wing portions 43 and 44 provided outside the absorbent body 30 in the width direction W orthogonal to the longitudinal direction L in the plan view shown in FIG. Furthermore, the absorbent article 1 includes side sheets 41 and 42 provided outside the absorber 30 in the width direction W.
- the top sheet 10 is a liquid-permeable sheet that transmits liquid such as body fluid.
- the top sheet 10 covers at least the surface of the absorber 30.
- the top sheet 10 is not particularly limited as long as it is a sheet-like material having a structure that allows liquid to permeate, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.
- the back sheet 20 has substantially the same length as the top sheet 10.
- a polyethylene sheet, a laminated nonwoven fabric mainly composed of polypropylene, a breathable resin film, a spunbond, a sheet obtained by bonding a breathable resin film to a nonwoven fabric such as spunlace, or the like can be used.
- the back sheet 20 is preferably made of a material having flexibility that does not cause a sense of incongruity when worn.
- the back sheet 20 is desirably liquid-impervious and moisture-permeable, and can be constituted by a microporous sheet obtained by stretching a melt-kneaded inorganic filler such as polyethylene or polypropylene. .
- the absorber 30 includes hydrophilic fibers and pulp.
- the absorber 30 is formed of a material that can absorb body fluid such as menstrual blood.
- the absorbent body 30 may be formed by laminating hydrophilic fibers or powder by the airlaid method, an airlaid sheet obtained by forming hydrophilic fibers or powder into a sheet shape by the airlaid method, or a tissue (for example, It may be formed by placing pulverized pulp mixed with a superabsorbent polymer on a basis weight of 15 g / m 2 ) and wrapping it with a tissue.
- the absorbent body 30 is configured by wrapping pulp 8 in which cotton-like pulp, synthetic pulp, or the like is laminated to a basis weight of about 100 to 300 g / m 2 with protective paper (not shown).
- the thickness of the core part 31 (for example, refer FIG. 3) located in the center in the width direction of the absorber 30 is thicker than the thickness of the both sides in the width direction.
- the absorber 30 may have a substantially uniform thickness on the entire surface or a non-uniform thickness.
- the protective paper is for maintaining the shape of the pulp, and for example, crepe paper or tissue paper can be used.
- the absorbent body 30 has a shape extending in the front-rear direction and is approximately one time smaller than the back sheet 20.
- the length of the absorbent body 30 in the width direction W corresponds to the crotch interval of an adult woman and is approximately 50 to 80 mm.
- the absorber 30 is bonded to the back sheet 20 with an adhesive such as hot melt. Moreover, in this Embodiment, the absorber 30 and the surface sheet 10 are adhere
- the core part 31 is provided so as to include at least the center of the excretion opening contact area where the wearer's excretion opening comes into contact.
- the center of the excretion opening contact area is the center in the longitudinal direction and the width direction of the area where the wearer's excretion opening comes into contact.
- the center in the longitudinal direction of the wing portion is the center in the longitudinal direction of the excretory opening contact region.
- the position where the length dimension of the width direction of an absorber is the shortest becomes the center of the longitudinal direction of an excretion opening
- the excretory opening contact region is included in a region that contacts the wearer's crotch, and is located between the wearer's legs.
- the side sheets 41 and 42 are disposed on both sides of the top sheet 10.
- the side sheets 41 and 42 can be selected from the same material as the top sheet 10. However, in order to prevent menstrual blood from flowing over the side sheets 41 and 42 to the outside of the absorbent article 1, it is preferable to have hydrophobicity or water repellency.
- the side sheets 41 and 42 cover a part of the side edge of the absorber 30 and the wing parts 43 and 44.
- the peripheral edges of the top sheet 10, the side sheets 41 and 42, and the back sheet 20 are joined to enclose the absorbent body 30.
- any one or a combination of heat embossing, ultrasonic waves, or hot melt adhesive can be used as a method for joining the top sheet 10 and the back sheet 20.
- the adhesive material 50 is applied to the surface in contact with the undergarment in a plurality of regions (see FIG. 2).
- the adhesive material 50 is intermittently disposed along the longitudinal direction L on the back surface side of the absorber.
- the adhesive material 50 is also provided on the surface in contact with the underwear.
- the adhesive material 50 is in contact with the release sheet 90.
- the release sheet 90 prevents the adhesive material 50 from deteriorating before use. And the peeling sheet 90 is peeled by the wearer at the time of use.
- the absorbent article which does not have the peeling sheet 90 you may be comprised so that an adhesive material may prevent deterioration before use with the packaging sheet which wraps an absorbent article separately.
- the adhesive material is in contact with the packaging sheet, it is desirable that the surface of the packaging sheet be subjected to a treatment that allows the adhesive material to be peeled without reducing the adhesive strength of the adhesive material.
- the upper layer sheet 70 is a liquid-permeable sheet that transmits liquid such as body fluid.
- the upper layer sheet 70 is not particularly limited as long as it is a sheet-like material having a structure that transmits liquid, such as a nonwoven fabric, a woven fabric, a perforated plastic sheet, and a mesh sheet. Either natural fibers or chemical fibers can be used as the woven or non-woven material.
- the upper layer sheet 70 is folded starting from a fold extending in the longitudinal direction L, and is laminated in two or three layers in the thickness direction T of the absorbent article.
- the bulkiness of the upper layer sheet 70 can be maintained, and the voids in the upper layer sheet 70 can be secured.
- the layers of the folded upper layer sheet are joined by a hot melt adhesive.
- the hot melt adhesive between the layers of the upper layer sheet 70 is disposed along the longitudinal direction.
- the adhesive is hydrophobic, when the body fluid discharged from the excretion port is held by the upper layer sheet, avoid the hydrophobic adhesion area (along the adhesion area) and diffuse the body fluid in the longitudinal direction. Can do.
- the upper layer sheet 70 is configured to be laminated, but may be any configuration as long as a void can be secured.
- the upper layer sheet 70 is an air-through nonwoven fabric having a basis weight of 20 g / m 2 and is made of a composite fiber having a core-sheath structure in which the core is 2.2 dtex and the sheath is PE.
- the nonwoven fabric is subjected to a bulk recovery treatment (left for 10 minutes at a temperature of 90 ° C.) to adjust the density to 0.025 g / cm 3 .
- an air through nonwoven fabric is a nonwoven fabric with a comparatively many space
- the topsheet 10 is an air-through nonwoven fabric having a basis weight of 25 g / m 2 and is made of a composite fiber having a core-sheath structure in which the core is PET of 2.2 dtex and the sheath is PE. Note that the surface sheet has not been subjected to bulk recovery treatment, and its density is 0.055 g / cm 3 .
- the body fluid can be smoothly transferred from the upper layer sheet 70 to the top sheet 10 by the density gradient.
- the density of the upper layer sheet is reduced by the bulk recovery process, so that a density difference from the surface sheet is provided, and body fluid can be smoothly transferred from the upper layer sheet to the surface sheet due to the density gradient.
- the body fluid held by the lower density upper layer sheet can be transferred to the higher density surface sheet.
- the upper layer sheet 70 is bonded to the skin contact surface side of the topsheet 10 and is disposed along the longitudinal direction L of the absorbent article 1 at the center in the width direction of the absorbent article 1.
- the length in the longitudinal direction L of the upper layer sheet 70 is substantially the same as the length in the longitudinal direction L of the absorbent article 1, and the length in the width direction W of the upper layer sheet 70 is the length in the width direction W of the absorbent article 1. Shorter than the length of the absorber 30 in the width direction W.
- the upper layer sheet 70 includes an adhesion area A1 adhered to the top sheet 10 via an adhesive and a non-adhesion area A2 not adhered to the top sheet 10 via an adhesive.
- FIG. 5 is a plan view of the absorbent article shown in FIG. 1 and shows a bonding area A1 and a non-bonding area A2.
- the adhesion region A1 is a hatched region.
- the adhesion region A ⁇ b> 1 is arranged in two rows along the longitudinal direction L at the center in the width direction W of the upper layer sheet 70.
- the upper layer sheet 70 has a central area including an excretion opening contact area disposed to face the excretion opening of the wearer.
- the excretion opening contact area is an area where the wearer's excretion opening comes into contact.
- the center area A3 may be an area including at least the center of the excretory opening contact area, and the center of the central area A1 may be the center of the excretion opening contact area, or the center of the central area A3 and the excretion opening The center of the contact area may be shifted.
- the adhesive regions A1 By providing the adhesive regions A1 in two rows along the width direction, it is possible to provide non-adhesive regions A2 between both ends in the width direction of the upper layer sheet and between the two rows of adhesive regions A1.
- the sheets are bonded to each other, and the gap in the sheet may be reduced. Therefore, the adhesion region A1 may have a lower body fluid retention than the non-adhesion region A2.
- the non-adhesion region at the center portion in the width direction of the absorbent body, it is possible to maintain the body fluid retainability at the center portion in the width direction of the absorbent body.
- the adhesive when the adhesive is hydrophobic, a non-adhesive region extending in the longitudinal direction is provided between the adhesive regions, so that the body fluid discharged from the excretion port is drawn by the upper sheet, and then the hydrophobic adhesive region is avoided.
- the body fluid can be diffused in the longitudinal direction (along the bonding region).
- the adhesive regions are provided in two rows and the non-adhesive regions are provided between the adhesive regions.
- the adhesive regions may be provided in one row, or the adhesive regions may be provided in three or more rows. Also good.
- a compressed portion 80 is formed by compressing at least the top sheet 10 and the absorbent body 30 in the thickness direction.
- the pressing part 80 includes a longitudinal pressing part 81 extending along the longitudinal direction L, a width pressing part 82 extending along the width direction, and a plurality of intermittent point pressing parts 83 formed intermittently.
- Longitudinal compressed portion 81 is disposed adjacent to upper layer sheet 70 on the outer side in the width direction than upper layer sheet 70.
- the longitudinal direction pressing part 81 the surface sheet 10 and the absorber 30 are compressed in the thickness direction.
- the longitudinal direction compression parts 81 are formed in two rows along the longitudinal direction L, and are arranged on the outer side in the width direction than the first longitudinal direction compression part 81A located on the inner side in the width direction and the first longitudinal direction compression part 81A. And the second longitudinal direction compressed portion 81B.
- the longitudinal direction pressing part 81 is disposed adjacent to the upper layer sheet 70.
- the absorbent body 30 is compressed in the thickness direction, and it is easy to draw body fluid and the like. Therefore, the body fluid temporarily held by the upper layer sheet 70 can be drawn in the vicinity of the upper layer sheet 70, and the body fluid held by the upper layer sheet can be quickly absorbed. Moreover, the spreading
- the width direction pressing part 82 is formed along the width direction W.
- positioned is formed by compressing the upper layer sheet 70, the surface sheet 10, and the absorber 30 in the thickness direction.
- positioned is formed by compressing the surface sheet 10 and the absorber 30 in the thickness direction.
- the width direction pressing parts 82 are formed in two rows along the width direction W, and are arranged on the outer side in the longitudinal direction than the first width direction pressing part 82A located on the inner side in the longitudinal direction and the first width direction pressing part. And a second width direction compressed portion 82B.
- the longitudinal direction compression part 81 may be formed so as to be inclined with respect to a straight line along the longitudinal direction L, and an angle (acute angle) formed by the straight line along the longitudinal direction L and the longitudinal direction compression part 81. Side) is 45 degrees or less.
- the width direction pressing part 82 may be formed so as to be inclined with respect to a straight line along the width direction W, and an angle formed by the straight line along the width direction W and the width direction pressing part 82. (Acute angle side) shall be less than 45 degrees.
- the longitudinal direction compressed portion 81 and the width direction compressed portion 82 may be connected to form a circular compressed portion, or may not be connected.
- the first longitudinal direction pressing portion 81A and the first width direction pressing portion 82A are continuously formed, and the second longitudinal direction pressing portion 81B and the second width direction pressing portion 82B are continuous. Is formed.
- the longitudinal direction pressing part and the width direction pressing part may be connected to form a substantially U-shaped pressing part, or may not be connected.
- FIG. 5 the boundary X of a longitudinal direction pressing part and the width direction pressing part is illustrated.
- the point-like compressed portion 83 has a circular shape and is formed in a plurality intermittently.
- the point-like compressed portion 83 is an outer periphery of a circular-shaped compressed portion formed by the first longitudinal direction compressed portion 81 ⁇ / b> A and the first width direction compressed portion 82 ⁇ / b> A, and the rear end portion of the absorbent body 30 and the rear of the absorbent body 30. It is formed in the side edge part.
- a plurality of point-like compressed parts may be provided intermittently, and the shape is not limited to a circle, and may be an ellipse, a star, a hardware, a diamond, or the like, and is not limited.
- the upper layer sheet, the top sheet, and the absorbent body are integrated and joined by the point-like compressed portion at the front end portion of the absorber 30 and the rear end portion of the absorbent body 30, the distance of the absorbent layer from the surface is reduced. .
- the body fluid discharged from the wearer and flowing backward can be retained in the gap of the upper layer sheet and drawn in at the point-like compressed portion 83. Since the dotted compression parts 83 are interspersed, it is easy to contact the body fluid flowing in all directions and easily draw the body fluid.
- the point-like compressed parts are arranged intermittently, they are harder to be harder than the width-direction compressed part extending in the width direction and the longitudinal-direction compressed part extending in the longitudinal direction.
- the point-like squeezed part can prevent the rigidity of a part of the region from being biased and become hard, and can suppress the deterioration of the wearing feeling.
- the body fluid held by the pressing part may be diffused in the front-rear direction or the width direction.
- the point-like compressed portion 83 is disposed at the front end portion of the absorbent body 30 and the rear end portion of the absorbent body 30. If body fluid diffuses too much, a front leak or the like may occur. However, since the point-like compressed part is circular, it can suppress diffusion of the retained body fluid and prevent leakage.
- the pressing part 80 is formed by compressing the upper layer sheet 70, the surface sheet 10, and the absorber 30 in the thickness direction, and the upper layer sheet 70 is not arrange
- the part in which the pressing part 80 of the upper layer sheet 70 is formed is joined to the surface sheet 10 by pressing. Therefore, the non-joining region S1 where the upper layer sheet 70 and the top sheet 10 are not joined is a non-adhering region A2 where the top sheet 10 and the top layer sheet 70 are not joined by the adhesive, and the compressed portion 80 is formed. It is an area that has not been done.
- the non-joining region S1 is a region with dots in FIG.
- region where the pressing part here is not formed is an area
- the non-joining region S1 is a region in which the top sheet and the upper layer sheet are not joined by the adhesive and the pressing part 80 is not formed, and the upper layer sheet and the top sheet are partially joined by the upper layer pressing part 71. In the case, it is a concept including a portion joined by the upper layer pressing portion 71.
- the pressing part 80 is formed by compressing at least the top sheet 10 and the absorbent body 30 in the thickness direction, and is a part having a relatively high density.
- the pressing part 80 is formed by compressing at least the top sheet 10 and the absorbent body 30 in the thickness direction, and is a part having a relatively high density.
- the body fluid temporarily held by the upper layer sheet 70 can be drawn by the pressing part having a relatively high density.
- the longitudinal direction compression part 81 is formed in the width direction outer side of the non-joining area
- a side leak can be prevented and the width direction pressing part 82 is formed in the longitudinal direction outer side of the non-joining area
- the pressing part 80 is formed by compressing at least the top sheet 10 and the absorber 30 in the thickness direction, and is a relatively hard part. Since the longitudinal direction compression part 81 is formed in the width direction outer side of the upper layer sheet 70, when it is pressed toward the inner side from the width direction outer side, it deforms toward the inner side with the longitudinal direction compression part 81 as a base point, and external force is applied. Can be absorbed. Moreover, since the width direction pressing part extended in the width direction is formed, the resistance with respect to the force from the width direction outer side becomes large. Therefore, when a wearer wearing the absorbent article 1 closes both legs, when a force is applied from the outer side in the width direction of the absorbent article 1 toward the inner side, the deformation of the absorbent body can be suppressed. .
- an upper layer pressing portion 71 is formed by compressing the top sheet 10 and the upper layer sheet 70 in the thickness direction.
- the upper layer pressing part 71 is arrange
- the upper layer pressing part 71 is arranged to be inclined with respect to the longitudinal direction L. Therefore, when the absorbent article 1 is pressed inward from the outer side in the width direction, the absorbent article 1 is easily bent along the inclined upper layer pressing portion 71, and the absorbent article can be prevented from being bent along the longitudinal direction. Moreover, since the lattice shape of an upper layer pressing part is a rhombus shape whose longitudinal direction is longer than the width direction, it is difficult for body fluid to diffuse in the width direction.
- FIG. 6A and 6B are diagrams schematically showing a state in which the absorbent article is worn in the AA cross section of FIG.
- FIG. 6A shows a state where the absorbent article 1 is attached to the underwear S.
- positioned at the width direction outer side of the absorbent article 1 are return
- FIG. 6B shows a state where the absorbent article 1 is pressed from the outside in the width direction toward the inside.
- the absorbent article 1 When the absorbent article 1 is pressed from the outside in the width direction toward the inside, the absorbent article 1 is deformed toward the inside from the first longitudinal direction compressed portion 81A and the second longitudinal direction compressed portion 81B.
- the upper layer sheet 70 is joined to the top sheet 10 only at the center in the width direction of the absorber 30, and non-adhesive areas A2 are arranged on both sides thereof. Therefore, the upper layer sheet 70 of the bonding area A1 is pushed up together with the top sheet 10, and the upper layer sheet 70 of the non-bonding area A2 is separated from the top sheet 10 and pushed up in a horizontal state.
- seat 70 is maintained in the state facing the wearer's body, such as an excretion opening.
- the upper layer sheet 70 can be brought close to the excretion opening, and body fluid excreted from the excretion opening can be quickly drawn into the upper layer sheet.
- the absorbent article 1 is deformed inward in the width direction with the first longitudinal compressed portion 81A adjacent to the upper layer sheet 70 on the outer side in the width direction than the upper layer sheet 70, and the absorbent body 30 is inward from the outer side in the width direction. It is configured to absorb external force. Therefore, it is possible to suppress deformation of the upper layer sheet 70 when a force is applied from the outer side in the width direction of the absorbent article 1 toward the inner side, such as when the wearer wearing the absorbent article 1 closes both legs. it can. Moreover, since the longitudinal direction compression part 81 is extended and formed in the longitudinal direction across at least the excretion opening
- the non-bonding region S1 of the upper layer sheet is not bonded to the surface sheet 10
- the deformation of the upper layer sheet due to the deformation of the surface sheet or the like is reduced. Can do. Therefore, it becomes easy to maintain the upper layer sheet in a state of facing the wearer's body such as the excretion opening.
- the length L1 between the end portion of the upper layer sheet 70 on the longitudinal pressing portion side and the end portion on the outer side in the width direction of the longitudinal pressing portion is longer than the width direction length L2 of the non-joining region. Even when the absorbent article 1 is pressed from the outer side in the width direction to the inner side due to the length L1 being longer than the length L2, the longitudinal outer pressing part is deformed to move inward in the width direction.
- the longitudinal direction pressing part 81 is arrange
- the edge part of the width direction outer side of the longitudinal direction pressing part 81 is an edge part located in the outermost part, when two are formed.
- the point-like pressing part 83 is formed in the front-end part and rear-end part of an absorber, and the front-end part and rear-end part of an absorber become easy to bend along the width direction, or follow a longitudinal direction. It won't bend easily. Therefore, the absorber 30 can be easily bent along the outer shape of the wearer's body in the front-rear direction, and the fit of the absorbent article can be improved.
- the pressing part should just be formed by pressing at least the surface sheet 10 and the absorber 30 in the thickness direction T, and can adopt various configurations.
- it can be formed by pressing or embossing, and the shape thereof may be a lattice network or a honeycomb shape.
- the hardness of an absorbent article etc. can be measured using the Gurley method prescribed
- the fabric weight and density of an absorber can be measured with the following measuring methods, for example.
- the absorbent article packaged by the packaging body the packaging body is opened, the folded absorbent article is developed, and the thickness and area of the portion where the basis weight and density are measured are measured.
- the part which measures a fabric weight and a density is cut out from an absorbent article, and the weight of the cut-out part is measured.
- parts other than the absorber, such as the top sheet and the back sheet, are removed from the cut out part, and the weight of the absorber is measured.
- the basis weight is calculated based on the weight of the absorbent body and the area of the portion where the basis weight and density are measured.
- the density is calculated based on the basis weight and thickness.
- the thickness can be measured by the following measuring method. Specifically, after the sample absorbent article was impregnated with liquid nitrogen and frozen, it was cut with a razor and returned to room temperature, and then it was magnified 50 times using an electron microscope (for example, KEYENCE VE7800). Measure with magnification.
- an electron microscope for example, KEYENCE VE7800. Measure with magnification.
- the reason why the absorbent article of the sample is frozen is to prevent the thickness from fluctuating due to compression during cutting.
- the manufacturing method of an absorbent article performs an upper layer 1st production
- the bulky recovery process is performed, for example, by passing the upper layer sheet through a container to which hot air is supplied.
- an upper layer second generation process is performed. Specifically, the top sheet 10 and the upper layer sheet 70 are compressed in the thickness direction T to form the upper layer pressing portion 71.
- the compression processing is performed by passing an embossing roll (upper sheet side is a convex pattern and the front sheet side is a flat pattern) through heating the upper layer sheet 70 and the top sheet 10. Concavity and convexity processing is formed.
- step 103 the upper third generation process is performed. Specifically, the top sheet and the side sheets 41 and 42 are bonded by, for example, heat welding.
- step 104 an absorber molding process is performed.
- the absorber 30 is formed by molding pulp as a material of the absorber with a molding drum. Note that the order of the upper layer generation process of steps 101 to 103 and the absorber molding process of step 104 may be reversed.
- step 105 a joining process is performed. Specifically, a joining process for joining the upper layer generated in Step 103 and the absorbent body 30 molded in Step 104 is performed.
- step 106 a pressing process is performed. Specifically, the absorber 30 and the top sheet 10 are compressed in the thickness direction, and the upper layer sheet, the top sheet, and the absorber 30 are compressed in the thickness direction to form the compressed portion 80.
- step 107 a back sheet joining process is performed. Specifically, the absorber, the top sheet, and the like that have formed the compressed portion in step 106 are joined to the back sheet.
- it has the process of apply
- the absorbent article which concerns on this Embodiment can be manufactured according to said process.
- Absorbent article 1A according to the second embodiment is a daytime sanitary napkin.
- the length of the rear region of the absorbent article is substantially the same as the length of the front region.
- the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
- the upper layer sheet 70 of the absorbent article according to the second embodiment has a length in the longitudinal direction shorter than the length in the longitudinal direction of the absorbent article.
- the upper layer sheet 70 is disposed at the center in the longitudinal direction of the absorbent body 30 and at the center in the width direction, and is disposed so as to cover the excretory opening contact region.
- the upper layer sheet 70 is formed with a point-like compressed portion 72 that is compressed in the thickness direction together with the surface sheet 10.
- the upper layer sheet 70 and the top sheet 10 are joined by the dot-like compressed portion.
- the longitudinal direction pressing part which concerns on this Embodiment is two, a 1st longitudinal direction pressing part and a 2nd longitudinal direction pressing part, one may be sufficient.
- a gather may be formed at the outer end in the width direction of the absorbent body.
- the absorbent body and the top sheet are bonded via an adhesive, but the absorbent body and the top sheet may not be joined at least below the non-joined region. Since the absorbent body and the upper layer sheet are not joined below the non-joining region, the deformation of the upper layer sheet based on the deformation of the absorbent body is reduced when the absorbent article is pressed from the outside in the width direction to the inside. be able to.
- the absorbent article when the absorbent article is pressed from the outside in the width direction to the inside, the length in the width direction becomes shorter and the thickness becomes thicker. Therefore, the top sheet and the upper layer sheet arranged on the absorber are pushed upward. At this time, since the top sheet is disposed on the absorber without being joined to the absorber, the top sheet is only subjected to deformation in the thickness direction without being influenced by the width direction of the absorber and pushed up. Therefore, the upper layer sheet is also pushed up, and it becomes easy to maintain the upper layer sheet in a state of facing the wearer's body such as the excretion opening.
- the body fluid excreted from the excretion opening can be temporarily held by the upper layer sheet joined on the top sheet. Since the upper layer sheet is not sandwiched by the top sheet or the like, it is easy to secure a gap inside the upper layer sheet. The amount of the body fluid such as menstrual blood having a relatively high viscosity increases temporarily due to the gap in the upper layer sheet. Therefore, even when a large amount of body fluid is discharged at a time, leakage of body fluid can be suppressed.
- a longitudinal direction pressing portion is provided on the outer side in the width direction of the upper layer sheet.
- the longitudinal direction compressed portion is a portion where at least the top sheet and the absorbent body are compressed in the thickness direction, and the density is relatively high.
- this pressing part is arrange
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Abstract
Description
図1及び図2を参照して、本発明の第1の実施形態に係る吸収性物品1について説明する。図1は、吸収性物品の平面図であり、図2は、吸収性物品の背面図である。図3は、図1に示すA-A断面図であり、図4は、図1に示すB-B断面図である。本実施形態に係る吸収性物品1は、例えば、生理用ナプキンである。
次いで、図8に基づいて第2の実施形態に係る吸収性物品1Aについて説明する。第2の実施形態に係る吸収性物品1Aは、昼用の生理用ナプキンである。第2の実施形態に係る吸収性物品1Aは、吸収性物品の後側領域の長さが前側領域と略同じ長さとなる。第2の実施形態において、第1の実施形態と同様の構成については、同符号を用いて説明を省略する。
Claims (8)
- 液透過性の表面シート、液不透過性の裏面シート、及び前記表面シートと前記裏面シートとの間に配置される吸収体を有する吸収性物品であって、
前記表面シートの肌当接面側には、液透過性の上層シートが設けられており、
前記上層シートは、前記吸収性物品の幅方向における中央部において前記吸収性物品の長手方向に沿って配置され、かつ着用者の排泄口に対向して配置される排泄口当接領域を含む中央領域を有しており、
前記吸収性物品には、前記表面シート及び前記上層シートを厚み方向に圧縮した上層圧搾部が形成され、かつ少なくとも前記表面シート及び前記吸収体を厚み方向に圧縮した吸収体圧搾部が形成され、
前記吸収体圧搾部は、前記上層シートよりも幅方向外側において前記吸収性物品の長手方向に沿って形成された長手方向圧搾部を有する、吸収性物品。 - 前記吸収体圧搾部は、前記中央領域よりも前記長手方向外側に設けられ、前記幅方向に延びる幅方向圧搾部を有しており、
前記幅方向圧搾部は、前記上層シート、前記表面シート及び前記吸収体を厚み方向に圧縮されている、請求項1に記載の吸収性物品。 - 前記吸収体圧搾部は、前記中央領域よりも前記長手方向外側に設けられ、間欠的に複数形成された点状の点状圧搾部を有しており、
前記点状圧搾部は、前記上層シート、前記表面シート及び前記吸収体を厚み方向に圧縮されている、請求項1又は請求項2に記載の吸収性物品。 - 前記上層シートの前記幅方向における両端部には、前記表面シートに対して接合されない非接合領域が設けられており、
前記上層シートの前記長手方向圧搾部側の端部と、前記長手方向圧搾部の前記幅方向外側の端部との長さは、前記非接合領域の前記幅方向長さよりも長い、請求項1から請求項3のいずれかに記載の吸収性物品。 - 前記上層シートの前記幅方向における両端部には、前記表面シートに対して接合されない非接合領域が設けられており、
前記吸収体と前記表面シートは、少なくとも前記非接合領域の下方において接合されていない、請求項1から請求項3のいずれかに記載の吸収性物品。 - 前記上層圧搾部は、格子状に配置されている、請求項1から請求項5のいずれかに記載の吸収性物品。
- 前記表面シートにおける繊維密度は、前記上層シートにおける繊維密度よりも高くなるように構成されている、請求項1から請求項6のいずれかに記載の吸収性物品。
- 前記表面シートと前記上層シートとは、接着剤を介して接合されており、
前記接着剤は、前記長手方向に沿って延び、かつ幅方向において間隔を空けた複数の列状に配置されている。請求項1から請求項7のいずれかに記載の吸収性物品。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280024486.1A CN103561702B (zh) | 2011-05-20 | 2012-05-15 | 吸收性物品 |
KR1020137031776A KR101661386B1 (ko) | 2011-05-20 | 2012-05-15 | 흡수성 물품 |
EP12789378.2A EP2710990A1 (en) | 2011-05-20 | 2012-05-15 | Absorbent article |
US14/118,730 US9622921B2 (en) | 2011-05-20 | 2012-05-15 | Absorbent article with topsheet, top-layer sheet and compressing portions |
Applications Claiming Priority (2)
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JP2011-113832 | 2011-05-20 | ||
JP2011113832A JP5684046B2 (ja) | 2011-05-20 | 2011-05-20 | 吸収性物品 |
Publications (1)
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WO2012161023A1 true WO2012161023A1 (ja) | 2012-11-29 |
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PCT/JP2012/062344 WO2012161023A1 (ja) | 2011-05-20 | 2012-05-15 | 吸収性物品 |
Country Status (8)
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US (1) | US9622921B2 (ja) |
EP (1) | EP2710990A1 (ja) |
JP (1) | JP5684046B2 (ja) |
KR (1) | KR101661386B1 (ja) |
CN (1) | CN103561702B (ja) |
AR (1) | AR086433A1 (ja) |
TW (1) | TWI523646B (ja) |
WO (1) | WO2012161023A1 (ja) |
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JP5699242B1 (ja) * | 2014-06-30 | 2015-04-08 | ユニ・チャーム株式会社 | 吸収性物品 |
CA2967001A1 (en) * | 2014-11-06 | 2016-05-12 | The Procter & Gamble Company | Patterned apertured webs, laminates, and methods for making the same |
JP5984156B2 (ja) | 2014-11-19 | 2016-09-06 | 大王製紙株式会社 | 吸収性物品の製造方法及び吸収性物品 |
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US10973702B2 (en) | 2015-08-26 | 2021-04-13 | The Procter & Gamble Company | Absorbent articles having three dimensional substrates and indicia |
JP6051285B1 (ja) * | 2015-09-30 | 2016-12-27 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6101779B1 (ja) * | 2015-12-16 | 2017-03-22 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6868964B2 (ja) * | 2016-03-17 | 2021-05-12 | 株式会社リブドゥコーポレーション | 吸収性物品 |
JP6242423B2 (ja) * | 2016-03-29 | 2017-12-06 | 大王製紙株式会社 | 吸収性物品 |
JP6338725B2 (ja) * | 2016-06-10 | 2018-06-06 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6203906B1 (ja) * | 2016-06-14 | 2017-09-27 | 大王製紙株式会社 | 吸収性物品 |
WO2018000410A1 (en) | 2016-07-01 | 2018-01-04 | The Procter & Gamble Company | Absorbent articles with improved topsheet dryness |
JP6982515B2 (ja) * | 2018-02-22 | 2021-12-17 | 花王株式会社 | 液体塗工方法及び吸収性物品の製造方法 |
JP6952016B2 (ja) * | 2018-06-29 | 2021-10-20 | ユニ・チャーム株式会社 | 吸収性物品 |
JP7018863B2 (ja) * | 2018-10-09 | 2022-02-14 | ユニ・チャーム株式会社 | 吸収性物品 |
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CN111150555B (zh) * | 2018-11-08 | 2023-05-09 | 尤妮佳股份有限公司 | 吸收性物品 |
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Also Published As
Publication number | Publication date |
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JP5684046B2 (ja) | 2015-03-11 |
JP2012239712A (ja) | 2012-12-10 |
EP2710990A1 (en) | 2014-03-26 |
KR20140027367A (ko) | 2014-03-06 |
CN103561702A (zh) | 2014-02-05 |
TW201311221A (zh) | 2013-03-16 |
TWI523646B (zh) | 2016-03-01 |
CN103561702B (zh) | 2015-06-24 |
KR101661386B1 (ko) | 2016-09-29 |
US20140163507A1 (en) | 2014-06-12 |
US9622921B2 (en) | 2017-04-18 |
AR086433A1 (es) | 2013-12-11 |
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