WO2014119218A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2014119218A1 WO2014119218A1 PCT/JP2013/085120 JP2013085120W WO2014119218A1 WO 2014119218 A1 WO2014119218 A1 WO 2014119218A1 JP 2013085120 W JP2013085120 W JP 2013085120W WO 2014119218 A1 WO2014119218 A1 WO 2014119218A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- absorbent article
- width direction
- arc
- embossing
- embosses
- Prior art date
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 109
- 239000002250 absorbent Substances 0.000 title claims abstract description 109
- 238000004049 embossing Methods 0.000 claims description 40
- 239000006096 absorbing agent Substances 0.000 claims description 35
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 210000001124 body fluid Anatomy 0.000 abstract description 28
- 239000010839 body fluid Substances 0.000 abstract description 25
- 238000009792 diffusion process Methods 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
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- 238000000034 method Methods 0.000 description 13
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- 229920000247 superabsorbent polymer Polymers 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
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- 239000008280 blood Substances 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 206010017076 Fracture Diseases 0.000 description 1
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- 239000002202 Polyethylene glycol Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—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
-
- 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
- A61F13/515—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 characterised by the interconnection of the topsheet and the backsheet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15365—Dimensions
Definitions
- the present invention mainly relates to absorbent articles used for sanitary napkins, vaginal sheets, incontinence pads, medical pads, toiletries, and the like, and even when the absorbent body is relatively thin, the absorbent body
- the present invention relates to an absorbent article that is difficult to twist and hardly causes side leakage.
- the absorbent article paper cotton such as pulverized pulp is provided between a liquid-impermeable back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric and a liquid-permeable surface sheet such as a nonwoven fabric or a liquid-permeable plastic sheet.
- a liquid-impermeable back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric
- a liquid-permeable surface sheet such as a nonwoven fabric or a liquid-permeable plastic sheet.
- Patent Document 1 discloses that a width of a pair of side portions of an absorbent body located between a pair of side portions in at least an excretion portion-facing portion of an absorbent main body. A pair of high compression regions are formed by being compressed from the central portion in the direction, and the high compression regions are formed up to the outer end in the width direction of the absorber, and the longitudinal front and rear ends of the absorber An absorbent article that is not formed up to a portion is disclosed.
- Patent Document 2 a pair of inner grooves that are curved outwardly in the width direction in a plan view are formed on both sides of the topsheet and the absorbent body in the excretory part region.
- an absorbent article in which a pair of outer grooves that are convexly curved outward in the width direction in a plan view are formed on the top sheet and the absorbent body on the outer side in the width direction of each side groove.
- the absorbent body is consolidated by forming a pair of inner grooves and outer grooves to make it difficult to generate twist, but the inner grooves and the outer grooves are simply wide. Since the shape is curved in a convex shape outward in the direction, it is difficult to obtain sufficient resistance against leg pressure from the outside in the width direction, and the absorber may be twisted.
- the main problem of the present invention is to provide an absorbent article which makes the absorbent body difficult to twist and hardly leaks sideways.
- an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and both sides of the absorbent body are substantially along the longitudinal direction.
- the embossing is formed in a pattern in which a plurality of linear portions and arc-shaped portions protruding outward in the width direction of the absorbent article with the end of the linear portion as a base point are alternately arranged. Articles are provided.
- the linear portion and the end of the straight portion protrude from the width direction of the absorbent article.
- the absorbent body is less likely to be twisted and leaks due to twisting. Can be prevented.
- the emboss since the emboss includes a plurality of arc-shaped portions projecting outward in the width direction with the straight portion as a base point, leg pressure from the outer side in the width direction is dispersed and absorbed in the arc-shaped portion, and is firmly received in the arc-shaped portion. Therefore, twisting of the absorber can be surely prevented.
- the straight portion is provided between the arc-shaped portions, when the body fluid that diffuses outward from the center in the width direction reaches the straight portion, the flow in the direction along the straight portion, that is, absorption. Since the flow is converted into a flow in a direction along the substantially longitudinal direction of the active article, diffusion outward in the width direction is reduced, and side leakage can be reliably prevented.
- the absorbent article according to claim 1 wherein the emboss is formed such that the longitudinal dimension of the absorbent article in the arc-shaped part is longer than the longitudinal dimension of the absorbent article in the straight line part. Is provided.
- the longitudinal dimension of the absorbent article of each part of the emboss is specified, and the length of the arc-shaped part is made longer than the length of the straight part, thereby increasing resistance to leg pressure, Prevents twisting of the absorber.
- a plurality of the embosses are formed on both sides of the absorber,
- the embossing located on the outer side in the width direction has a configuration in which the interval between adjacent embosses is set narrower than the embossing located on the inner side in the width direction and / or the configuration in which the groove width of the embossing is set larger.
- An absorbent article according to any one of 2 is provided.
- the embosses located on the outer side in the width direction are closer to each other than the embosses located on the inner side in the width direction.
- the groove width of the arc-shaped portion is set to be larger than the groove width of the linear portion with respect to the arc-shaped portion mainly responsible for resisting leg pressure from the outside in the width direction. Therefore, the resistance to leg pressure is further increased, and the absorbent body is prevented from twisting.
- a plurality of the embosses are formed on both sides of the absorber, A part of the arc-shaped portion of the emboss located on the inner side in the width direction enters the inner side of the arc-shaped portion of the emboss located on the outer side in the width direction under a condition that adjacent embosses do not intersect each other with a space therebetween.
- a part of the arc-shaped portion of the emboss located on the inner side in the width direction is located on the outer side in the width direction.
- the rigidity of the arcuate part is further increased, the resistance to leg pressure is increased, and the deflection of the absorber is further increased. It is preventing.
- the longitudinal dimension of the absorbent article in the arc-shaped portion is made longer Configuration to set, configuration to set the length of the absorbent article in the longitudinal direction of the linear portion to be short, configuration to set the radius of curvature of the arc-shaped portion to be small, absorbent article width direction based on the linear portion of the arc-shaped portion.
- section corresponding to the crotch portion is a portion where the leg pressure acts particularly greatly at the time of wearing, as a means for increasing resistance to the leg pressure and preventing twisting.
- the straight portions and the connecting portions are provided on one continuous line.
- Body fluid is likely to diffuse in the longitudinal direction.
- the present invention according to claim 8 provides the absorbent article according to any one of claims 1 to 7, wherein the emboss is formed continuously or intermittently along the groove direction.
- the emboss can be formed not only continuously along the groove direction but also intermittently.
- a plurality of the embosses are formed on both sides of the absorber,
- the arc-shaped portion of the arc-shaped portion is arranged in the longitudinal direction of the absorbent article by disposing the phase so that the arc-shaped portions of the adjacent embosses are displaced with respect to the width direction of the absorbent article. Since the arrangement range exists over a wider range, the leg pressure can be reliably resisted.
- FIG. (A) is this sanitary napkin 1
- (B) is a schematic diagram which shows the direction of the leg pressure and the flow of a bodily fluid based on a comparative example. It is an enlarged view (the 1) of embossing 10. It is an enlarged view (the 2) of embossing 10. It is an enlarged view (the 3) of embossing 10. It is an enlarged view (the 4) of embossing 10. It is an enlarged view (the 5) of the embossing. It is a top view of the absorber 4 which concerns on another form. It is an enlarged view (the 6) of the embossing 10. FIG. It is an enlarged view (the 7) of embossing 10. (A), (B) is an enlarged view of the emboss 10 (No. 8).
- the sanitary napkin 1 has a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, and the like, and a liquid-permeable surface that allows permeation of blood or vaginal discharge quickly.
- the sheet 3, the absorbent body 4 made of cotton-like pulp or synthetic pulp interposed between the two sheets 2 and 3, and the absorbent body 4 are surrounded to maintain the shape and improve the diffusibility of the absorbent body 4. It is comprised from the crepe paper 5, and the side nonwoven fabrics 7 and 7 arrange
- the outer edge portion of the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is formed of an adhesive such as hot melt, heat seal, or the like.
- the liquid-impervious back sheet 2 and the side nonwoven fabric 7 which are joined by an adhesive means and extend laterally from the edge of the absorbent body 4 at both side edges thereof are adhesives such as hot melt or heat.
- sticker, and the absorber 4 does not exist in the outer periphery is formed.
- the structure of the sanitary napkin 1 will be described in detail.
- a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used.
- a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, or A nonwoven fabric sheet (in this case, the waterproof film and the nonwoven fabric constitute a liquid-impervious back sheet) can be used after substantially impervious to liquid imperviousness by interposing a waterproof film.
- those having moisture permeability tend to be used from the viewpoint of preventing stuffiness.
- This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.
- the liquid-permeable surface sheet 3 is preferably a porous or non-porous nonwoven fabric or a porous plastic sheet.
- the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton.
- a nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Of these processing methods, the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability, and the thermal bond method and the air-through method are excellent in terms of being bulky and soft.
- the absorbent body 4 interposed between the liquid-impermeable back sheet 2 and the liquid-permeable surface sheet 3 is composed of, for example, fluffy pulp and a highly water-absorbing polymer.
- superabsorbent polymer superabsorbent polymer granular powder (SAP) or superabsorbent polymer fiber (SAF) can be used.
- the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolved pulp, and artificial cellulose fibers such as rayon and acetate. Softwood pulp having a longer fiber length than hardwood pulp functions and It is preferably used in terms of price.
- it is preferable that heat-bondable fibers and a highly water-absorbing polymer are mixed with pulp, and a web is formed by the airlaid method so that the thickness can be reduced, followed by heat-bonding.
- the sanitary napkin 1 is particularly effective when used as a thin slim napkin, and the absorber thickness at this time is preferably 0.5 mm to 10 mm.
- the absorber thickness is smaller than 0.5 mm, it is difficult to obtain the effect when the emboss 10 described in detail later is applied, and the absorber is likely to be twisted or laterally leaked.
- the absorbent body itself has sufficient rigidity, and problems such as twisting on both sides of the absorbent body and leakage associated therewith hardly occur.
- the crepe paper 5 surrounding the absorbent body 4 is provided as in this example, the crepe paper 5 is interposed between the liquid-permeable surface sheet 3 and the absorbent body 4 as a result.
- the crepe paper 5 which is excellent in diffusing body fluids quickly prevents reversal of menstrual blood and the like.
- the crepe paper 5 may not be used because the absorption performance of the absorber itself is excellent.
- the crepe paper 5 may be a non-woven fabric or a low-weight air-laid non-woven fabric.
- the absorbent body 4 without surrounding the absorbent body 4, it is interposed only between the absorbent body 4 and the liquid-permeable surface sheet 3, or between the absorbent body 4 and the liquid-permeable surface sheet 3 and between the absorbent body 4 and the liquid-permeable surface sheet 3. Each can be interposed between the liquid back sheet 2 and the like.
- side non-woven fabrics 7 and 7 are provided on both sides of the sanitary napkin 1 along the longitudinal direction and almost the entire length of the napkin 1, respectively.
- Wing-like flaps W and W are formed by a part of the liquid-impervious back sheet 2 that extends laterally and also laterally.
- a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of important functions. For example, if importance is placed on functions such as preventing the penetration of bodily fluids or enhancing the feeling of touch, it is necessary to use a water-repellent non-woven fabric coated with a silicon-based, paraffin-based, or alkylchromic chloride-based water repellent. desirable.
- a method of polymerizing a compound having a hydrophilic group for example, an oxidation product of polyethylene glycol, in the synthetic fiber production process, Treating with metal salt such as stannic, partially dissolving the surface to make it porous and making the synthetic fiber swell or porous by applying a metal hydroxide, etc., applying capillary action to impart hydrophilicity It is desirable to use a hydrophilic treated nonwoven fabric.
- embosses 10, 10 Provided along substantially the longitudinal direction on both sides of the absorbent body 4 before laminating the liquid-permeable topsheet 3. And improve the resistance against leg pressure by increasing the rigidity of the absorbent body 4, making the absorbent body 4 difficult to twist, and absorbing the absorbed body fluid quickly and effectively along the groove direction of the embosses 10, 10. To diffuse.
- the emboss 10 will be described.
- the emboss 10 has a plurality of linear portions 11, 11... Arranged at intervals on a straight line substantially along the napkin longitudinal direction from the front end to the rear end of the absorbent body 4. And an arcuate portion 12 that protrudes outward in the napkin width direction from the end portion of the linear portion 11 as a base point, and the linear portion 11 and the arcuate portion 12 are alternately arranged.
- the embosses 10 are arranged symmetrically on both sides in the width direction of the absorbent body 4 so as to be a plurality of one pair or two or more pairs. In the illustrated example, three embosses 10 are arranged at substantially equal intervals in the napkin width direction. Has been.
- both sides of the absorbent body 4 are consolidated and the rigidity is increased, so that even if leg pressure is applied from the outside in the width direction at the time of wearing, it is difficult to twist, and side leakage due to this twist can be prevented, Diffusion of the body fluid to the outside in the width direction is suppressed and side leakage can be prevented.
- the emboss 10 in order to increase the rigidity of the absorbent body 4, as shown in FIG. 4B, a pattern in which linear embossing along the longitudinal direction of the napkin is imparted is also conceivable.
- the embossed wire tends to bend or bend inward in the width direction against leg pressure from the outside in the width direction, and there is almost no resistance to leg pressure. The occurrence of twisting of the body cannot be suppressed.
- the emboss 10 particularly has a plurality of arc-shaped portions 12 protruding outward in the width direction with the straight portion 11 as a base point.
- the absorbent body 4 Since the leg pressure from the outer side in the width direction is dispersed and absorbed in the arc-shaped portion 12 and can be firmly received in the arc-shaped portion 12, the absorbent body 4 is difficult to twist even if the leg pressure is applied, and the lateral pressure due to the twisting. Leakage can be prevented.
- the straight portion 11 is provided between the arc-shaped portions 12 and 12, the flow of the body fluid from the central portion in the width direction of the absorbent body 4 to the outside flows in the direction along the straight portion 11, that is, the napkin. Since it becomes easy to convert into the flow of the direction along a longitudinal direction, the spreading
- the emboss 10 preferably has a napkin longitudinal dimension “a” of the arcuate part 12 longer than a napkin longitudinal dimension “b” of the linear part 11.
- the arc-shaped portion 12 is a portion that generates resistance against leg pressure. Therefore, by making the size of the arc-shaped portion 12 larger than the size of the linear portion 11, resistance to leg pressure is increased.
- the longitudinal dimension a of the arcuate part 12 is 16 mm or more and 100 mm or less, preferably 20 mm or more and 30 mm or less.
- the longitudinal dimension b of the linear portion 11 is 3 mm or more and 20 mm or less, preferably 5 mm or more and 10 mm or less.
- the protruding amount c of the arcuate part 12 to the outside in the napkin width direction from the straight line part 11 is 3 mm or more and 10 mm or less, preferably 5 mm or more and 10 mm or less.
- the arcuate portion 12 is preferably formed by an arc having a single radius of curvature R, and the radius of curvature R at this time is 8 mm to 50 mm, preferably 10 mm to 20 mm. .
- the groove width of the emboss 10 is 0.5 mm to 3 mm, preferably 1 mm to 2 mm at the bottom of the emboss. As will be described in detail later, the groove width of the emboss 10 may be different for each embossed line or may be partially different for one embossed line. It is desirable to form with the groove width.
- One emboss 10 is provided on each side of the absorbent body 4 in the width direction, or a plurality of the embosses 10 are provided at predetermined intervals in the width direction of the napkin, preferably increasing the resistance to body pressure and the longitudinal direction of the body fluid napkin In order to increase the diffusibility to the surface, a plurality of them are provided.
- the emboss 10 located on the outer side in the width direction is set to be narrower than the emboss 10 located on the inner side in the width direction. It is the structure to do.
- the second is a configuration in which the groove width of the emboss 10 is set larger in the emboss 10 positioned on the outer side in the width direction than on the emboss 10 positioned on the inner side in the width direction.
- the two configurations described above can include only one of them, or both at the same time.
- the outer region in the width direction is a region in which leg pressure acts strongly, and if body fluid diffuses further outside, the region is directly connected to leakage. Therefore, by providing the emboss 10 adopting the above configuration in the outer region in the width direction. The effect by the emboss 10 is enhanced.
- the embossing 10 may be formed so that the groove width is substantially equal over the entire length in the napkin longitudinal direction.
- the groove width can be set to be thick. Specifically, as shown in FIG. 7, the groove width of the arc-shaped portion 12 is set to be larger than the groove width of the linear portion 11 over the entire length in the napkin longitudinal direction or in a predetermined section in the napkin longitudinal direction. Can do.
- the arc-shaped portion 12 is a portion that receives a leg pressure from the outside in the width direction and generates a resistance force, by forming the groove width of the arc-shaped portion 12 to be relatively thick, resistance to leg pressure is increased. You can increase your power.
- the linear portion 11 is a portion that plays a role of converting the flow of body fluid that diffuses mainly from the center side in the width direction toward the outside as described above, and flows to the longitudinal direction of the napkin. Since it is not an influential part, increasing the groove width of the straight line portion 11 is not preferable because it may cause resistance to bending of the absorbent body 4 in the longitudinal direction and may cause a deterioration in wearing feeling.
- each emboss 10 does not intersect with each other with a distance between adjacent embosses 10, 10.
- the plurality of embosses 10, 10,... May be provided in a multi-line shape.
- the straight portion 11 is also provided in a multi-line shape, the flow of body fluid can be more reliably received and converted into a flow along the straight portion 11, and side leakage can be reliably prevented.
- letting the arcuate part 12 on the inner side in the width direction enter the inner side of the arcuate part 12 on the outer side in the width direction means that the straight part of the emboss 10 where the tip part of the arcuate part 12 on the inner side in the width direction is adjacent to the outer side in the width direction. 11 so as to be positioned on the outer side in the width direction from 11.
- the arc-shaped portion 12 is preferably formed by an arc having a single radius of curvature. At this time, as the protruding base end position of the arc, the arc-shaped portion 12 begins to protrude outward in the width direction from the end portion of the linear portion 11. As shown in FIG. 9, the positional relationship between the maximum position 15 in the longitudinal direction of the napkin of the virtual circle 14 extending along the arcuate part 12 and the linear part 11 can be arbitrarily set. Specifically, as shown in FIG. 9 (A), when the maximum position 15 of the virtual circle 14 in the longitudinal direction of the napkin coincides with the straight line portion 11, the virtual circle 14 is assumed to be virtual as shown in FIG. 9 (B).
- the maximum position 15 in the longitudinal direction of the napkin of the circle 14 is located outside the linear portion 11 in the width direction, the maximum position 15 in the longitudinal direction of the napkin of the virtual circle 14 is the linear portion, as shown in FIG. Any of those in the width direction inner side than 11 may be used.
- the arcuate portion 12 since the arcuate portion 12 does not expand in the napkin longitudinal direction from the base end portion of the straight portion 11, the arcuate portion 12 has a relatively high rigidity and is resistant to leg pressure. Increases resistance.
- the arcuate part 12 extends in the napkin longitudinal direction from the base end part of the linear part 11, and therefore the length of the linear part 11 is relative to the length of the arcuate part 12. Therefore, the length for receiving the flow of body fluid is increased, and it is easy to prevent side leakage.
- the leg pressure acts stronger than the front and rear sections, so the emboss 10 in this section has a special configuration that can particularly counteract the leg pressure. It is desirable to prepare.
- the section corresponding to the crotch portion at the time of mounting has a configuration in which the groove width of the arc-shaped portion 12 is set to be relatively larger than that of the front and rear sections (FIG.
- the napkin longitudinal dimension a of the arc-shaped portion 12 Is configured to be relatively long
- the napkin longitudinal dimension b of the linear portion 11 is set to be relatively short
- the straight line of the arc-shaped portion 12 Any one or any combination of the configurations in which the protruding amount c outward in the napkin width direction with the portion 11 as a base point is set to be relatively large can be employed.
- the emboss 10 forms a connecting portion 13 in which ends of adjacent straight portions 11, 11 are connected by straight embossing, whereby the straight portion 11 and the connecting portion 13 are continuous 1. It can be provided on a line of books. As a result, the body fluid that diffuses outward from the center in the width direction always comes into contact with the straight portion 11 or the connecting portion 13, and a napkin longitudinal flow along the straight portion 11 and the connecting portion 13 is likely to occur. Lateral leakage can be prevented more reliably.
- the embossing 10 can be formed by continuous embossing in which embossing grooves are continuous along the groove direction, or can be formed as intermittent embossing in which pressing parts and intermittent parts are alternately arranged. Is possible. Moreover, when forming the some embossing 10,10 ... in each side part of the absorber 4, all the embossing 10 can also be provided continuously or intermittently, and as shown in FIG. The emboss 10 and the intermittent emboss 10 can be mixed. In the case of the embosses 10, 10... In which continuous lines and intermittent lines are arranged, the continuous embosses 10 are arranged on the outer side in the width direction and the intermittent embosses 10 are arranged on the inner side in the width direction as shown in the illustrated example.
- the emboss 10 is intermittent, the intermittent length e along the emboss line direction is preferably smaller than the distance d between the adjacent embosses 10 and 10 (d> e). Thereby, it becomes easy for a bodily fluid to flow along intermittent embossing 10, and it becomes difficult to diffuse to adjacent embossing 10.
- the arcuate portions 12 of the adjacent embosses 10, 10 are arranged in the same phase in the width direction. As shown in FIG. 13, the arcuate portions 12 of the adjacent embosses 10 and 10 may be arranged out of phase so that they are displaced relative to the napkin width direction. Thereby, since the embossing 10, 10 ... as a whole, the arrangement range of the arcuate part 12 in the longitudinal direction of the napkin exists over a wider range, it is possible to reliably resist the leg pressure, and the deflection of the absorber 4 Can be prevented.
- the arc-shaped part 12 comes to exist over the whole napkin longitudinal direction as the embossing 10 and 10 whole.
- the embossing 10 surrounds the absorbent body 4 with the crepe paper 5 and then squeezes from the surface side (skin contact surface side, liquid-permeable surface sheet 3 arrangement side). It can be given by. Further, when a hydrophilic second sheet (not shown) is disposed between the absorbent body 4 and the liquid-permeable surface sheet 3, the second sheet is laminated in a state where the absorbent body 4 and the second sheet are laminated. You may give from the surface side.
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Abstract
Description
前記エンボスは、直線部と、この直線部の端部を基点として吸収性物品の幅方向外側に突出する円弧状部とを交互に複数配置したパターンで形成されていることを特徴とする吸収性物品が提供される。
幅方向外側に位置するエンボスの方が幅方向内側に位置するエンボスより、隣接するエンボス同士の間隔を狭く設定する構成及び/又はエンボスの溝幅を大きく設定する構成を有している請求項1、2いずれかに記載の吸収性物品が提供される。
隣接するエンボス同士が間隔をあけて互いに交差しない条件の下で、幅方向内側に位置するエンボスの前記円弧状部の一部を、幅方向外側に位置するエンボスの前記円弧状部の内側に入り込ませるように配置している請求項1~4いずれかに記載の吸収性物品が提供される。
隣接するエンボスの前記円弧状部が吸収性物品の幅方向に対し位置ずれするように位相をずらして配置されている請求項1~4、請求項6~8いずれかに記載の吸収性物品が提供される。
本発明に係る生理用ナプキン1は、図1に示されるように、ポリエチレンシート、ポリプロピレンシートなどからなる不透液性裏面シート2と、経血やおりものなどを速やかに透過させる透液性表面シート3と、これら両シート2,3間に介在された綿状パルプまたは合成パルプなどからなる吸収体4と、この吸収体4の形状保持および拡散性向上のために前記吸収体4を囲繞するクレープ紙5と、表面両側部にそれぞれ長手方向に沿って配設されたサイド不織布7,7とから構成されている。前記吸収体4の周囲において、そのナプキン長手方向の前後端縁部では、前記不透液性裏面シート2と透液性表面シート3との外縁部がホットメルトなどの接着剤やヒートシール等の接着手段によって接合され、またその両側縁部では吸収体4の端縁よりも側方に延出している前記不透液性裏面シート2と前記サイド不織布7とがホットメルトなどの接着剤やヒートシール等の接着手段によって接合され、外周に吸収体4の存在しない外周フラップ部Fが形成されている。
前記不透液性裏面シート2は、ポリエチレンやポリプロピレン等のオレフィン系樹脂シートなどの少なくとも遮水性を有するシート材が用いられるが、この他にポリエチレンシート等に不織布を積層したラミネート不織布や、さらには防水フィルムを介在して実質的に不透液性を確保した上で不織布シート(この場合には防水フィルムと不織布とで不透液性裏面シートを構成する。)などを用いることができる。近年はムレ防止の観点から透湿性を有するものが用いられる傾向にある。この遮水・透湿性シート材は、ポリエチレンやポリプロピレン等のオレフィン系樹脂中に無機充填剤を溶融混練してシートを成形した後、一軸または二軸方向に延伸することにより得られる微多孔性シートである。
前記エンボス10は、図3に示されるように、吸収体4の長手方向の前端から後端に亘ってナプキン長手方向にほぼ沿う直線上に間隔をあけて複数配置された直線部11、11…と、この直線部11、11の間であって、前記直線部11の端部を基点としてナプキン幅方向外側に突出する円弧状部12とからなり、前記直線部11と円弧状部12が交互に複数配置されたパターンで形成されている。前記エンボス10は、吸収体4の幅方向両側部にそれぞれ左右対称で1対又は2対以上の複数に亘って配置され、図示例では左右にそれぞれ3本ずつナプキン幅方向にほぼ等間隔で配置されている。
Claims (9)
- 透液性表面シートと裏面シートとの間に吸収体が介在されるとともに、前記吸収体の両側部にそれぞれ略長手方向に沿ってエンボスが付与された吸収性物品において、
前記エンボスは、直線部と、この直線部の端部を基点として吸収性物品の幅方向外側に突出する円弧状部とを交互に複数配置したパターンで形成されていることを特徴とする吸収性物品。 - 前記エンボスは、前記円弧状部の吸収性物品長手方向寸法が、前記直線部の吸収性物品長手方向寸法より長く形成されている請求項1記載の吸収性物品。
- 前記吸収体の両側部にそれぞれ複数の前記エンボスが形成され、
幅方向外側に位置するエンボスの方が幅方向内側に位置するエンボスより、隣接するエンボス同士の間隔を狭く設定する構成及び/又はエンボスの溝幅を大きく設定する構成を有している請求項1、2いずれかに記載の吸収性物品。 - 前記エンボスは、前記円弧状部の溝幅が前記直線部の溝幅よりも大きく設定されている請求項1~3いずれかに記載の吸収性物品。
- 前記吸収体の両側部にそれぞれ複数の前記エンボスが形成され、
隣接するエンボス同士が間隔をあけて互いに交差しない条件の下で、幅方向内側に位置するエンボスの前記円弧状部の一部を、幅方向外側に位置するエンボスの前記円弧状部の内側に入り込ませるように配置している請求項1~4いずれかに記載の吸収性物品。 - 装着時に股間部に対応する区間では、その前後区間より、前記円弧状部の溝幅を大きく設定する構成、前記円弧状部の吸収性物品長手方向寸法を長く設定する構成、前記直線部の吸収性物品長手方向寸法を短く設定する構成、前記円弧状部の曲率半径を小さく設定する構成、前記円弧状部の前記直線部を基点とした吸収性物品幅方向外側への突出量を大きく設定する構成、のいずれか又は任意の組合せの構成を有している請求項1~5いずれかに記載の吸収性物品。
- 前記直線部の端部同士を直線エンボスで接続した連結部が形成されることにより、前記直線部及び連結部が連続する1本の線上に設けられている請求項1~6いずれかに記載の吸収性物品。
- 前記エンボスは、溝方向に沿って連続的又は間欠的に形成されている請求項1~7いずれかに記載の吸収性物品。
- 前記吸収体の両側部にそれぞれ複数の前記エンボスが形成され、
隣接するエンボスの前記円弧状部が吸収性物品の幅方向に対し位置ずれするように位相をずらして配置されている請求項1~4、請求項6~8いずれかに記載の吸収性物品。
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EP13873924.8A EP2952163B1 (en) | 2013-01-31 | 2013-12-27 | Absorbent article |
US14/764,789 US10376425B2 (en) | 2013-01-31 | 2013-12-27 | Absorbent article |
CN201380072051.9A CN105025855B (zh) | 2013-01-31 | 2013-12-27 | 吸收性物品 |
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EP3215095A1 (en) * | 2014-11-06 | 2017-09-13 | The Procter and Gamble Company | Zonal patterned apertured webs, laminates, and methods for making the same |
CN107582248A (zh) * | 2017-10-20 | 2018-01-16 | 川田卫生用品(浙江)有限公司 | 一种卫生巾 |
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EP2952163A1 (en) | 2015-12-09 |
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