JP2013154017A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve fitting to the shape and movement of a human body.SOLUTION: In a sanitary napkin 1 for which an absorber 4 is interposed between a liquid permeable surface sheet 3 and a back surface sheet 2 and a pair of left and right fitting embosses 10, 10 are formed along the almost longitudinal direction on both side parts of an area corresponding to at least a blood discharge port part H, for the absorber 4, a plurality of slits 20 are formed along two or more directions different from the longitudinal direction and width direction of the sanitary napkin 1 respectively in areas Ton both sides from the fitting emboss 10 and an area Tmore on the rear side than the fitting emboss 10, and a plurality of slits 21 are formed along the longitudinal direction of the sanitary napkin 1 in an area Theld between the fitting embosses 10, 10.

Description

  The present invention relates to an absorbent article mainly used for sanitary napkins, cage sheets, incontinence pads, medical pads, toiletries, and the like, and relates to an absorbent article having improved body shape and fit to movement.

  Conventionally, as an absorbent article such as a panty liner, sanitary napkin, incontinence pad, a liquid-impervious 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 In this case, an absorbent body made of paper cotton such as pulverized pulp is interposed therebetween.

  In this type of absorbent article, there is a problem that leakage due to misalignment or uncomfortable feeling is caused by not following the shape and movement of the body when worn. Particularly where wrinkles or kinks are likely to occur due to not following the shape and movement of the body when worn, (1) around the leg where leg pressure is applied, and (2) the part that touches the buttocks where movement is intense, (3) The portion in contact with the blood drainage port portion is surrounded by fit embossing, so it has high rigidity and is difficult to follow along the body.

  On the other hand, many absorptive articles have been proposed that are easily deformed according to the shape and movement of the body when worn, and that reduce leakage and discomfort due to misalignment. For example, Patent Document 1 below discloses an absorbent body in which a plurality of absorption parts are separated from each other and joined to a base sheet via a fixing part, and the plurality of absorption parts are arranged in a liquid communication state. ing.

  Further, in the following Patent Document 2, the first absorbent layer has a stretchable zone, each stretchable zone defines a generally linear pattern of openings defining a slit, and the generally linear pattern is An absorbent article is disclosed that is a V-shaped pattern symmetric with respect to the longitudinal axis.

JP 2010-268919 A Special table 2007-523665 gazette

  However, the absorbent body described in Patent Document 1 is provided by arranging a large number of independent absorbing portions in the vertical and horizontal directions on the upper surface of the stretchable base sheet so as to have a predetermined gap with respect to each other in the natural state. In order to ensure the deformability without excessively restricting the movement of the base sheet, for example, in the state where the base sheet is bent and deformed in the longitudinal direction along the roundness in the vertical direction of the base part, the groove of the base part is further There is a problem that the fitting property is not improved because it is not deformed as expected even if it is deformed along the short direction. Moreover, in the absorbent article described in Patent Document 2, the slits are formed in the absorbent layer to raise the central portion in the width direction of the absorbent layer along the longitudinal direction. Although improved, the fit around the legs is not considered.

  As described above, securing the followability to the shape and movement of the body at the above three locations (leg circumference, buttocks, blood drainage port portion) where wrinkles and kinks are likely to occur at the time of wearing is called prevention of leakage and reduction of discomfort. It is particularly important from a point of view.

  Then, the main subject of this invention is providing the absorbent article which improved the fit with respect to a body shape and a motion.

In order to solve the above-mentioned problem, as the present invention according to claim 1, an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and at least substantially on both sides of the region corresponding to the blood drainage port. In the absorbent article in which a pair of left and right fit embosses are formed along the longitudinal direction,
In the absorbent body, a plurality of slits are formed in two or more directions different from the longitudinal direction and the width direction of the absorbent article in the region on both sides of the fit emboss and the region on the rear side of the fit emboss, respectively. In addition, in the region sandwiched between the fit embosses, a plurality of slits are formed along the longitudinal direction of the absorbent article.

  In the first aspect of the present invention, in order to ensure the fit to (1) the leg circumference and (2) the buttock, the regions on both sides of the embossed portion corresponding to the blood drainage port of the absorber and the rear side of the fit embossed A plurality of slits are formed in each region along two or more directions different from the longitudinal direction and the width direction of the absorbent article. By providing the slit, the deformability of the absorber is improved, and the fit is improved even around the leg where the leg pressure is constantly applied and the buttocks where movement is intense. In particular, since the slit is formed along two or more directions different from the longitudinal direction and the width direction of the absorbent article, for example, in a region on both sides of the fit emboss, it goes from the width direction both sides to the width direction center side. In order to release the leg pressure appropriately by deforming the absorber so that the absorbers are displaced in the slit against the leg pressure, excessive pressure does not act on the absorbent article and it can prevent wrinkles and twists, and there is a feeling of strangeness around the leg It will be resolved. Furthermore, in the present invention, (3) a plurality of slits are formed along the longitudinal direction of the absorbent article in a region sandwiched by fit embossing in order to ensure fit to the blood drainage port. As a result, the rigidity of the absorbent body in the area sandwiched by the fit embossing is reduced and the deformability is improved, and the absorbent body in this area is likely to be raised on the skin side by the leg pressure from both sides, and the blood discharge port Fit is improved.

  The present invention according to claim 2 provides the absorbent article according to claim 1, wherein the slit is formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction. Is done.

  In the invention according to claim 2, the longitudinal direction of the absorbent article is formed as a broken line in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction as the slit. In addition, even when a plurality of slits are formed along two or more directions different from the width direction, the absorber can be appropriately deformed without being divided.

As a third aspect of the present invention, the slit formed in the region sandwiched between the fit embosses is formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction. Along with the widthwise central portion of the absorbent article and the left and right sides of the absorbent article are formed on the left and right pairs,
The length of the solid line portion of the slit is formed such that the slit formed on the outer side in the width direction is gradually shorter than the slit formed in the center portion in the width direction. An absorbent article according to any of the above is provided.

As a fourth aspect of the present invention, the slit formed in the region sandwiched between the fit embosses is formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction. Along with the widthwise central portion of the absorbent article and the left and right sides of the absorbent article are formed on the left and right pairs,
The length of the said non-slit part is formed so that the direction of the slit formed in the width direction outer side may become comparatively gradually longer with respect to the slit formed in the width direction center part. An absorbent article according to any of the above is provided.

  As the present invention according to claim 5, the slit formed in the region sandwiched between the fit embosses is formed so that the interval between adjacent slits becomes relatively smaller toward the center in the width direction of the absorbent article. An absorbent article according to any one of claims 1 to 4 is provided.

  The inventions according to claims 3 to 5 define a slit pattern formed in a region sandwiched between fit embosses, and the rigidity is relatively lowered toward the central portion of the blood outlet, It is easy to raise.

  As the present invention according to claim 6, in the absorber, a plurality of slits are formed in two or more directions different from the longitudinal direction and the width direction of the absorbent article in a region in front of the fit emboss. An absorbent article according to any one of claims 1 to 5 is provided.

  In the invention of claim 6, by forming a plurality of slits along the direction of two or more directions different from the longitudinal direction and the width direction of the absorbent article also in the region on the front side from the fit emboss of the absorbent body, The fit of the part corresponding to the lower abdomen is improved.

  As the present invention according to claim 7, there is provided an absorbent article according to any one of claims 1 to 6, wherein a non-formed region where the slit is not formed is provided at an end in a longitudinal direction of the absorber.

  In the invention according to the seventh aspect, in order to ensure the rigidity of the end portion in the longitudinal direction of the absorbent article, a non-formation region where no slit is formed is provided.

  As the present invention according to claim 8, a hydrophilic second sheet is disposed on the upper surface and / or lower surface of the absorber, and the slit and the second sheet are stacked in a state where the absorber and the second sheet are laminated. An absorbent article according to any one of claims 1 to 7, which is applied to the sheet simultaneously.

  The invention according to claim 8 shows an example of slit processing. When a hydrophilic second sheet is disposed on the upper surface and / or the lower surface of the absorber, the absorber and the second sheet are laminated, These absorbers and second sheets are simultaneously slit. Thereby, an absorbent article becomes more flexible and a deformability becomes favorable.

  As a ninth aspect of the present invention, the absorber has a structure in which a lower layer absorber and an upper layer absorber disposed at least in a region corresponding to the blood drainage port are stacked, and sandwiched between the fit embosses. The absorbent article according to any one of claims 1 to 8, wherein a slit formed in the region is provided in the upper absorbent body, and other slits are provided in the lower absorbent body.

  In the invention described in claim 9, when the absorber has a two-layer structure of the lower layer absorber and the upper layer absorber, the slit formed in the region sandwiched by the fit emboss is applied to the upper layer absorber, and the other slits Is applied to the lower layer absorber to ensure the deformability corresponding to each part.

  As described above in detail, according to the present invention, the fitness with respect to the shape and movement of the body can be improved.

It is a partial fracture development view of sanitary napkin 1 concerning the present invention. It is the II-II arrow directional view. 3 is an enlarged plan view of a blood drainage port H. FIG. It is an expanded view of the sanitary napkin 1 which concerns on another form example. It is an expanded view of the sanitary napkin 1 which concerns on another form example. It is an expanded view of the sanitary napkin 1 which concerns on another form example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<< Basic structure of sanitary napkin 1 >>
As shown in FIGS. 1 and 2, the sanitary napkin 1 according to the present invention has a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, or the like, and a permeate that quickly permeates menstrual blood or a cage. The liquid surface 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 for maintaining the shape of the absorbent body 4 and improving the diffusibility. Crepe paper 5 surrounding the sheet, a second sheet 6 made of a hydrophilic non-woven fabric interposed between the liquid-permeable surface sheet 3 and the crepe paper 5, and a side non-woven fabric provided on each side of the surface along the longitudinal direction. 7 and 7. Around the absorber 4, at the upper and lower edge portions, the outer edge portions of the liquid-impervious back sheet 2 and the liquid-permeable surface sheet 3 are joined by an adhesive such as hot melt or an adhesive means such as heat seal. In addition, the liquid-impervious back sheet 2 and the side nonwoven fabric 7 that extend laterally from the absorbent body 4 at both side edges thereof are bonded to each other by an adhesive such as hot melt or an adhesive means such as heat seal. Has been.

Hereinafter, the structure of the sanitary napkin 1 will be described in detail.
As the liquid-impermeable back sheet 2, a sheet material having at least water shielding properties such as an olefin resin sheet such as polyethylene or polypropylene is used. In addition, 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. In recent years, 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.

  As the liquid-permeable surface sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. Examples of 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. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft.

  In the sanitary napkin 1, by applying various fit embosses 10, 11, and 12 from the upper surface side of the liquid-permeable surface sheet 3, the retention of body fluid is promoted and the absorption efficiency is increased, thereby preventing side leakage. ing. As the fit emboss, a pair of left and right fit embosses formed by arcuate curves having a center of curvature along the substantially longitudinal direction of the sanitary napkin 1 on both sides of the body fluid discharge part H and on the napkin longitudinal center line CL side, respectively. 10 and the front of the fit embossing 10 is enlarged from the position on the longitudinal center line CL toward the front side for the purpose of distracting the feeling of depression during the menstrual period, and the front end portion thereof Fit emboss 11 formed in a shape such as a heart shape that curves inward, and spaced apart to the rear side from the fit emboss 10, and gradually expanding to both sides from the position on the longitudinal center line CL toward the rear side. It is composed of a fit emboss 12 that is formed in an inverted V shape and whose tip is curved toward the longitudinal center line CL. .

  The absorbent body 4 interposed between the liquid-impervious back sheet 2 and the liquid-permeable top sheet 3 is made of, for example, fluffy pulp and a water-absorbing polymer. The water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder. Examples of 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 the manufacturing method of the absorber 4 is a piled pulp or an airlaid absorber so as to be rich in flexibility. When 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. When an air laid absorber is used as the absorber 4, the crepe paper 4 may not be used because the absorption performance is excellent. A slit is formed in the absorber 4 in a predetermined pattern, which will be described in detail later.

  The second sheet 6 made of a hydrophilic non-woven fabric interposed between the liquid-permeable surface sheet 3 and the crepe paper 5 is made of, for example, synthetic fibers such as olefin-based, polyester-based, and polyamide-based fibers such as polyethylene or polypropylene, and rayon. Can be made of natural fibers such as spunlace, spunbond, thermal bond, melt blown, needle punch, etc. Can do. In order to impart hydrophilicity, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, or treatment with a metal salt such as stannic chloride, Synthetic fibers can be made to swell or become porous by a method such as partially dissolving the surface to make it porous and depositing metal hydroxide, etc., and applying capillary action to impart hydrophilicity.

  On the other hand, 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, W are formed by a part of the liquid-impervious back sheet 2 that extends sideways and also extends sideways.

  As the side nonwoven fabric 7, a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of an important function. For example, if importance is placed on functions such as preventing permeation of menstrual blood or vaginal discharge, or enhancing the touch feeling, water repellent treatment coated with silicon, paraffin or alkylchromic chloride water repellent It is desirable to use a nonwoven fabric. Further, if importance is attached to the absorption of menstrual blood and the like in the wing-shaped flaps W, W, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the process of producing a synthetic fiber, , By treating with a metal salt such as stannic chloride, partially dissolving the surface to make it porous, and depositing metal hydroxides to swell or make the synthetic fiber porous, applying capillary action to make it hydrophilic The hydrophilic treatment nonwoven fabric which gave is used.

<About slit>
In the sanitary napkin 1, the slits 20 and 21 are formed in a predetermined pattern in a predetermined region of the absorbent body 4 in order to improve the fit to the shape and movement of the body by ensuring the deformability of the absorbent body 4. ing. Specifically, the longitudinal direction and the width direction of the sanitary napkin 1 are different in the regions T ₁ and T ₁ on both sides of the fit embosses 10 and 10 of the absorbent body 4 and the region T ₂ on the rear side of the fit emboss 10, respectively. A plurality of slits 20, 20... Are formed at intervals along two or more directions, and in the region T ₃ sandwiched between the fit embosses 10, 10 along the longitudinal direction of the sanitary napkin 1. A plurality of slits 21, 21... Are formed at intervals in the width direction. The slits 20 and 21 are broken portions of the absorber formed in a line shape such as a solid line shape, a broken line shape, or a dotted line shape that penetrates at least the absorber 4 from the front surface side to the back surface side. In order to form the slits 20 and 21 in the absorbent body 4, at least one of the slits 20 and 21 can be formed by passing the absorbent body between rollers having a large number of cutter teeth on the surface.

Slits formed in the region T ₁ and T ₂ 20 is for ensuring the fit for leg and hip, respectively. By providing the slit 20, the absorber 4 is easily deformed in the slit portion, so that the fit around the leg where the leg pressure is always applied and the heel part where the movement is intense is improved, and the discomfort at the time of wearing is improved. Is resolved. In particular, the order to the longitudinal direction and the width direction of the slit 20 the sanitary napkin 1 is formed along the direction of two or more different directions, the area T _1, extending from both lateral sides in the width-direction center side Ashi圧On the other hand, since the absorber is deformed by the slit 20 and the leg pressure is appropriately released, excessive pressure is not applied to the sanitary napkin 1 and wrinkles and twists can be prevented, and the uncomfortable feeling about the legs is eliminated. Further, even in a region T _2, since the slit 20 is formed in multiple directions at the same time easily deformed along the longitudinal direction of the rounded buttocks against the napkin longitudinally, with respect to the napkin width direction buttocks The sanitary napkin 1 can be prevented from being wrinkled or twisted, and a sense of incongruity around the buttocks is eliminated.

Furthermore, a slit 21 formed in the region T ₃ is intended to ensure the fit for Haichiguchi unit. By providing the slit 21, the rigidity of the absorber region T ₃ is lowered, deformability becomes favorable, the absorbent body 4 in the region T ₃ by Ashi圧from both sides is easily raised to the skin-side , Fit to the blood drainage port H is improved.

  The slits 20 and 21 are preferably formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction. Thereby, even if it forms the some slit 20 ... which penetrates the absorber 4 from the surface side to a back surface side, the absorber 4 is not parted so that the deformability of the sanitary napkin 1 can be ensured moderately. Become.

  The fact that the slit 20 is formed along a direction different from the longitudinal direction and the width direction of the sanitary napkin 1 generally does not include components in the direction of the longitudinal center line CL of the sanitary napkin 1 and the direction orthogonal thereto. That is, the slit 20 extends along a direction having an angle of ± 10 ° or more with respect to the longitudinal center line CL of the sanitary napkin 1, and ± 10 ° or more with respect to a line orthogonal to the longitudinal center line CL. It is formed along a direction having an angle of. That is, the slit 20 is formed along the range of + 10 ° to + 80 ° and the range of −10 ° to −80 ° with respect to the longitudinal center line CL.

When forming in two or more directions, it is desirable to include a + direction (for example, clockwise direction) component and a − direction (for example, counterclockwise direction) component with respect to the longitudinal center line CL. As a result, the absorber 4 is partitioned in an oblique lattice shape by the slit 20 in each of the regions T ₁ and T ₂ , and deformation occurs such that each lattice slides in the slit 20 with respect to external pressure. The deformability of 4 can be improved. Further, the + direction and the − direction may be formed at different angles. However, as shown in FIG. 1, it is preferable that the angles be equal to each other because the lattice is formed exactly. One slit line is formed over the entire regions T ₁ and T ₂ .

  The lattice spacings S1 and S2 of the slits 20 may be different, but are preferably equal, and specifically 3 to 30 mm. Moreover, it is preferable to form the slit 20 in the shape of a broken line such that two or more, preferably two to seven slit solid line portions are formed for one lattice. Thereby, moderate deformability of each lattice part can be secured.

On the other hand, a slit 21 is formed in a region T ₃ sandwiched by fitting embossed 10,10, as in detail shown in Figure 3, a slit 21a in the width direction central portion of the sanitary napkin 1, on both sides It is composed of two pairs of slits 21b, 21b and 21c, 21c formed with left and right pairs with an interval. The pair of left and right slits formed on both sides of the slit 21a may be one or more and may not be necessary.

In the region T _3, the length of the napkin longitudinal direction of the slit solid part, 1 mm or more, it is preferable to 30mm or less. Moreover, it is not necessary to form this length equally in each slit 21a, 21b, 21c, and the slit formed in the width direction outer side is relatively with respect to the slit 21a formed in the center part in the width direction. It is preferable to form so that it may become short gradually. In FIG. 3, it is formed in a relationship of 30 mm ≧ A>B> C ≧ 1 mm. Thereby, the rigidity of the absorber 4 becomes low in the width direction central part, and it becomes easy to deform | transform so that the width direction center part protrudes with the leg pressure from both sides.

Further, in the region T _3, the napkin longitudinal length of the non-slit portions, 1 mm or more, it is preferable to 30mm or less. Also, it is not necessary to form the lengths equally in each of the slits 21a, 21b, and 21c, and the slits formed on the outer side in the width direction are relatively gradually formed with respect to the slits 21a formed in the central part in the width direction. It can be formed to be long. In FIG. 3, it is formed in a relationship of 1 mm ≦ a <b <c ≦ 30 mm. Thereby, the rigidity of the absorber 4 becomes lower at the center in the width direction, and it becomes easier to deform so that the center portion in the width direction is raised by leg pressure from both sides.

Furthermore, in the region T ₃ , it is preferable that the interval between the adjacent slits 21, 21 is formed so as to decrease toward the center in the width direction of the sanitary napkin 1. That is, in FIG. 3, it is formed in a relationship of α <β. Thereby, the rigidity of the absorber 4 becomes lower at the center in the width direction, and it becomes easier to deform so that the center portion in the width direction is raised by leg pressure from both sides.

  Incidentally, as shown in FIG. 4, a plurality of slits 20 are formed in the region T4 on the front side of the fit emboss 10 of the absorbent body 4 along two or more directions different from the longitudinal direction and the width direction of the sanitary napkin 1. 20... Can be formed. Thereby, the deformability of the absorber 4 can be ensured also in the portion corresponding to the lower abdomen, and the fit to the body shape and movement of the whole napkin can be improved.

Further, as shown in FIG. 5, in the region T ₂ , the rear side of the napkin from the base end portion of the fit emboss 12 formed in the width direction central portion near the front side of the region T ₂ , preferably in a substantially inverted V shape. A plurality of slits 22, 22... The slits 22 are radially formed in a pair along the longitudinal center line CL and in a pair having a predetermined angle with the longitudinal center line CL in the left and right pairs, and in the illustrated example, two pairs. Yes. Thus, in the region T _2, the widthwise central portion of the absorbent body 4 is easily deformed to bulge in the skin side, it is easy to fit more along the cleft of the buttocks.

On the other hand, as shown in FIG. 6, it is preferable to provide a non-formation region 23 in which the slit 20 is not formed at the longitudinal end portion of the absorber 4. By providing this non-formation region 23, the rigidity of the end portion of the product can be secured, and the end portion can be prevented from being turned over. In the case where the slit 20 is also formed in the region T ₄ is such that providing the non-formation regions 23 at each end of the rear and front.

  The slit 20 can improve the deformability of the absorber 4 by increasing the slit width. However, if the slit 20 is too large, the shape stability of the absorber 4 is deteriorated and the absorbability of body fluids is increased. Therefore, the thickness is preferably 3 mm or less. As a result, the rigidity of the absorbent body 4 is moderately reduced, and the fit to the body is good.

  By the way, although the above-mentioned slits 20, 21 and 22 may be applied to the absorber 4 (including the crepe paper 5) alone, when the second sheet 6 is interposed on the upper surface of the absorber 4 as in this example, Alternatively, when the second sheet 6 is interposed between the liquid-impermeable back sheet 2 and the crepe paper 5 (the lower surface of the absorber 4) or when the second sheet 6 is interposed on the upper and lower surfaces of the absorber 4, In a state where the absorber 4 and the second sheet 6 are laminated, it is preferable that the slits 20, 21, and 22 are simultaneously formed on the absorber 4 and the second sheet 6. Accordingly, the sanitary napkin 1 becomes more supple and good deformability can be secured.

Then, the absorbent body 4, and the lower layer absorbent body, when the upper layer absorbent body arranged in a region corresponding to at least Haichiguchi unit is a laminated structure, a slit 21 is formed in a region T ₃ is It is preferable to apply to the upper layer absorber, and it is preferable to apply the slits 20 formed in the regions T ₁ and T ₂ to the lower layer absorber. Thus, in the region T _3, the upper absorbent body is easily deformed so as to bulge in the skin side, thereby improving the fit of the Haichiguchi section, in the region T _1, T _2, the lower layer absorbent body The deformability can be improved, and the fit around the leg and the hip can be improved.

[Other examples]
The slit 20, in the illustrated example, are formed in a continuous pattern in the region T ₁ and T _2, it may be formed by independent pattern so as to divide at the boundary of these regions. Further, in the region _{T 1} and _{T 2} may have different patterns of slit 20. For example, in the region T _1, so as to receive the Ashi圧from both sides to ensure, to a large grid pattern with relatively large spacing of slits 20, whereas in the region T _2, in order to enter the gluteal groove, It is possible to increase the deformability of the absorber as a small lattice pattern by relatively reducing the interval between the slits 20.

  DESCRIPTION OF SYMBOLS 1 ... Sanitary napkin, 2 ... Liquid impervious back sheet, 3 ... Liquid permeable surface sheet, 4 ... Absorber, 5 ... Crepe paper, 6 ... Second sheet, 7 ... Side nonwoven fabric, 10.11 / 12 Embossing, 20, 21, 22 ... slit, 23 ... non-forming area

Claims (9)

Absorbent material in which an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and a pair of left and right fit embosses are formed substantially along the longitudinal direction on both sides of the region corresponding to the blood drainage port. In goods,
In the absorbent body, a plurality of slits are formed in two or more directions different from the longitudinal direction and the width direction of the absorbent article in the region on both sides of the fit emboss and the region on the rear side of the fit emboss, respectively. In addition, a plurality of slits are formed along the longitudinal direction of the absorbent article in a region sandwiched between the fit embosses.   The absorptive article according to claim 1 in which said slit is formed in the shape of a broken line by which a slit solid line part and a non-slit part are arranged alternately along a slit formation direction. The slit formed in the region sandwiched by the fit emboss is formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction, and the center in the width direction of the absorbent article Formed on the left and right paired parts with a gap on both sides
The length of the solid line portion of the slit is formed such that the slit formed on the outer side in the width direction is gradually shorter than the slit formed in the center portion in the width direction. The absorbent article in any one. The slit formed in the region sandwiched by the fit emboss is formed in a broken line shape in which slit solid line portions and non-slit portions are alternately arranged along the slit forming direction, and the center in the width direction of the absorbent article Formed on the left and right paired parts with a gap on both sides
The length of the said non-slit part is formed so that the direction of the slit formed in the width direction outer side may become comparatively gradually longer with respect to the slit formed in the width direction center part. The absorbent article in any one.   The slit formed in the area | region pinched | interposed by the said fit embossing is formed so that the space | interval between adjacent slits may become relatively small, so that it goes to the width direction center of an absorbent article. Absorbent article as described in 1.   The said absorber is in the area | region ahead of the said fitting embossing, The some slit is formed along the direction of two or more directions different from the longitudinal direction and width direction of an absorbent article. The absorbent article as described.   The absorbent article in any one of Claims 1-6 in which the non-formation area | region in which the said slit is not formed is provided in the longitudinal direction edge part of the said absorber.   2. A hydrophilic second sheet is disposed on the upper surface and / or lower surface of the absorber, and the slit is applied to the absorber and the second sheet at the same time in a state where the absorber and the second sheet are laminated. The absorbent article in any one of -7.   The absorber has a structure in which a lower layer absorber and an upper layer absorber disposed at least in a region corresponding to a blood drainage port are stacked, and a slit formed in a region sandwiched between the fit embosses The absorbent article according to any one of claims 1 to 8, wherein the absorbent article is applied to the upper absorbent body and the other slits are applied to the lower absorbent body.

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