CN108463197A

CN108463197A - Absorbent commodity

Info

Publication number: CN108463197A
Application number: CN201780006324.8A
Authority: CN
Inventors: 益井大和; 奥田富美子; 木村真由美; 田中聪
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2016-09-28
Filing date: 2017-08-29
Publication date: 2018-08-28
Anticipated expiration: 2037-08-29
Also published as: JP2018050952A; TWI737808B; JP6333911B2; WO2018061569A1; CN108463197B; TW201813609A

Abstract

The absorbent commodity of the present invention is formed with 1 central fold line (CFL) formed by the folding of absorbent commodity (1) in middle part (M) or rear part (R).Compared with the rear that central fold line (CFL) depends on longitudinal (X) rear part (R) absorber (4) across imaginary longitudinal centre line (CL), there is a pair of rear gap zone (RSr, RSl) configured with the rear slot (R1) extended on longitudinal direction (X) in its both sides.It is each configured with only 1 rear slot (R1) at a pair of rear gap zone (RSr, RSl) or has been distributed a plurality of rear slot (R1).

Description

Absorbent commodity

Technical field

The present invention relates to a kind of absorbent commodities such as sanitary napkin.

Background technology

For absorbent commodities such as sanitary napkins, in order to inhibit the leakage of the excretas such as menses, it is desirable that with along wearing The mode of the body shape for the person of wearing deforms, and the conformable skin for being tightly attached to wearer well.As the requirement can be coped with Technology, it is known to which the extra high absorber of rigidity forms the technology of slot or opening in the member of formation of absorbent commodity.

The applicant has been previously proposed a kind of absorbent commodity, has central gap zone and rear gap zone, should Central gap zone is dispersedly formed with longitudinal slot in the central portion of the excretory portion counterpart of absorber, the rear slot area Domain configures to being longitudinally spaced property in the rear part of absorber and is formed with rear slot (the patent text extended in the horizontal It offers 1).According to absorbent commodity described in Patent Document 1, it is not likely to produce deeper wrinkle or fold, conformable raising, and wear Sense improves.Wherein, it is longitudinally the direction corresponding with the front-rear direction of wearer of absorbent commodity, is laterally orthogonal with the longitudinal direction Direction.

In addition, recording a kind of absorbent commodity in patent document 2, it is formed in a surface side of absorber multiple Non-through slot portion, and be formed in the corresponding position of thickness direction in another surface side of the absorber and the slot portion Recess portion.Multiple slot portion is formed as linear what is be laterally extended, and being distributed in absorber entire one when looking down A face.According to patent document 2, absorber can be made to be easily deformed as starting point using multiple recess portions, so as absorbent commodity With sufficient flexibility, and it is capable of providing comfortable wearing feeling.

Existing technical literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2015-23999 bulletins

Patent document 2：Japanese Unexamined Patent Publication 2016-34598 bulletins

Invention content

The present invention is a kind of absorbent commodity, is had corresponding to the longitudinal direction in the front-back direction of wearer and orthogonal to that Laterally, and include the absorber of liquid retainability and be configured at positive dough sheet of the skin with respect to surface side of the absorber.Above-mentioned absorption Property article using 1 fold line formed by being folded as boundary, be divided into the 1st region longitudinally forward and rear 2nd region.Above-mentioned 1st region includes：Middle part, it includes parts opposite with the excretory portion of wearer when wearing；The front and Portion, compared with the middle part by longitudinally forward.Above-mentioned 2nd region includes the rear part that longitudinal rear is leaned on compared with the middle part.Above-mentioned 2nd The above-mentioned absorber in region across the imaginary longitudinal centre line extended in the longitudinal direction with halving the absorber in the horizontal, Its both sides has a pair of rear gap zone configured with the rear slot extended in the longitudinal direction.

Description of the drawings

Fig. 1 is the sanitary napkin for an embodiment for schematically showing the absorbent commodity as the present invention Vertical view of the skin with respect to surface side (positive dough sheet side).

Fig. 2 is the sectional elevation for the I-I line sections for schematically showing Fig. 1.

Fig. 3 is the sectional elevation for the II-II line sections for schematically showing Fig. 1.

Fig. 4 is vertical view of the skin with respect to surface side for the absorber for schematically showing sanitary napkin shown in FIG. 1.

Specific implementation mode

About commonly used absorbent commodity, such as sanitary napkin, be set as when unused with positive dough sheet at For the state that the mode of inside is folded, so its fold line is remained when in use.Physiology with this fold line is with defending There are the following problems for raw towel：The influence of folding line caused by the reason fold line leads to the skin for being difficult to be tightly attached to wearer, and Easy to produce it is conformable reduction or by liquid flow caused by leakage a problem that.Especially, in the forming position of fold line And its in the case that neighbouring rigidity is relatively low, folding line is difficult to restore, and the above problem is easy notableization.In patent document 1 and 2 In, it is not recorded about caused by there is this fold line and its solution.

Even if the project of the present invention is that a kind of there are the suctions that fold line can also be effectively prevented liquid leakage about providing The property received article.

Hereinafter, being described with reference to the accompanying drawings based on its preferred embodiment to the absorbent commodity of the present invention.Fig. 1~ The sanitary napkin 1 of an embodiment of the absorbent commodity of the present invention is denoted as in Fig. 3.As shown in Figure 1, sanitary napkin 1 has：Longitudinal X corresponds to the front-rear direction of wearer, back side is extended to via crotch part from the veutro of wearer；And cross It is orthogonal with longitudinal direction X to Y；And have：Middle part M, it includes when wearing and the excretory portion of wearer (introitus etc.) Opposite part, that is, excretory portion counterpart；Front part F is configured at compared with middle part M before the front i.e. wearer of longitudinal direction X Side (veutro)；With rear part R, it is configured at the rear i.e. rear side of wearer (back side) that longitudinal direction X is depended on compared with row's middle part M.In Between portion M above-mentioned excretory portion opposite site in middle part M lateral Y central portion.

As shown in Figure 1, sanitary napkin 1 using by towards the 1 central fold line CFL formed by the folding of its longitudinal direction X as boundary, It is divided into the 1st region and the 2nd region at rear in the front of longitudinal X, the 1st region includes middle part M and front part F, should 2nd region includes rear part R.That is, central fold line CFL forms the boundary of middle part M and rear part R.Central fold line CFL is logical It is inside (making to form the back sheet 3 of non-skin opposite face to be outside) that crossing, which makes to be formed the positive dough sheet 2 of skin opposite face, by sanitary napkin 1 longitudinal X fold and is formed, and formation extend in the lateral direction y it is linear.As long as central fold line CFL is formed in sanitary napkin 1 The central portion of longitudinal X be clipped to from the basis point vertical specifically, for the guide center of longitudinal X of sanitary napkin 1 To longitudinal X of the sanitary napkin 1 of the front side and rear side of X overall length 10% within region.

In addition, as shown in Figure 1, sanitary napkin 1 rear part R, more following rear gap zone RS more lean on longitudinal direction X after Side, is formed with 1 rear fold line RFL formed by the folding of sanitary napkin 1.Rear fold line RFL is also folded with center Line CFL similarly, is inside by making to be formed the positive dough sheet of skin opposite face 2, sanitary napkin 1 folded on longitudinal X and is formed, And formed extend in the lateral direction y it is linear.Rear fold line RFL extends in the lateral direction y between following outer grooves 6 and inside groove 7. Rear fold line RFL is generally formed in the longitudinal direction that sanitary napkin 1 is separated from the front side of rear end towards the longitudinal X of longitudinal X of sanitary napkin 1 10~30% position of the overall length of X.

In addition, as shown in Figure 1, sanitary napkin 1 front part F, be formed with 1 and formed by the folding of sanitary napkin 1 Front fold line FFL.Front fold line FFL also in the same manner as central fold line CFL and rear fold line RFL, to be formed by making The positive dough sheet 2 of skin opposite face is inside, and sanitary napkin 1 is folded on longitudinal X and is formed, and is formed and extended in the lateral direction y Linearly.Front fold line FFL is generally formed in from the rear side of front end towards the longitudinal X of longitudinal X of sanitary napkin 1 and separates sanitary napkin 10~30% position of the overall length of 1 longitudinal X.

In this way, sanitary napkin 1 sequentially has front fold line FFL, central fold line CFL and rear from the front of longitudinal X Fold line RFL's adds up to 3 fold lines, the fold line to make when being folded on longitudinal X and carrying out individual packaging by sanitary napkin 1 With.That is, the four fold form formed using 3 fold lines when the individual packaging form of sanitary napkin 1.

As shown in Figure 1, sanitary napkin 1 have the absorbent main body 10 of longer shape in the longitudinal direction and a pair of of tab portion 10W, 10W, a pair of tab portion 10W, 10W is respectively from the both sides along longitudinal X of the middle part M of absorbent main body 10 towards lateral Y Outside extend out.

The middle part M of absorbent commodity about the present invention, absorbent commodity is as sanitary napkin 1 with tab portion In the case of, for the region that is marked off by central fold line CFL and tab portion front end, " tab portion front end " described herein if Then it is the root of the front side of longitudinal X of a tab portion 10W by taking sanitary napkin 1 as an example.That is, middle part M is will be by a wing The root of the front side of piece portion 10W and the imaginary line extended in the lateral direction y are set as the front end of longitudinal X, by central fold line CFL It is set as 1 continuous region of the rear end of longitudinal X.In addition, in sanitary napkin 1, a pair of of tab portion 10W, 10W is with by sanitary napkin 1 It halves and is symmetrically formed on the basis of the longitudinal centre line CL extended on longitudinal X, a tab portion in the lateral direction y The root of the above-mentioned front side of 10W and the root of the above-mentioned front side of another tab portion 10W are located at identical bits on longitudinal X It sets.

In addition, the middle part M of the absorbent commodity (not shown) without tab portion refers to about by the absorbent commodity Be folded into generated when individual packaging form in transverse direction (width direction, the Y-direction in figure) across 2 of the absorbent commodity Fold line, the number from longitudinal front end of the absorbent commodity, the region surrounded by the 1st fold line and the 2nd fold line.If according to Fig. 1 is explained, then front fold line FFL is equivalent to the 1st fold line described herein, and central fold line CFL is equivalent to 2nd fold line described herein.That is, in sanitary napkin 1 shown in Fig. 1, it is assumed that the case where there is no a pair of of tab portions 10W, 10W Under, the middle part M of the sanitary napkin 1 without the tab portion is rolled over using front fold line FFL as the front end of longitudinal direction X and by center 1 continuous regions of the superimposing thread CFL as the rear end of longitudinal direction X.

Sanitary napkin 1 includes the absorber 4 of liquid retainability and positive dough sheet of the skin with respect to surface side for being configured at the absorber 4 2.More specifically, the absorbent main body 10 of composition sanitary napkin 1 includes：Positive dough sheet 2 forms skin opposite face；Back sheet 3, It forms non-skin opposite face；With absorber 4, between two pieces 2,3.Absorbent main body 10 is on longitudinal X from front The front side of side, that is, wearer is sequentially divided into this 3 regions front part F, middle part M and rear part R.Longitudinal X and sanitary napkin 1 It is consistent with the length direction of absorbent main body 10, lateral Y with and sanitary napkin 1 and the orthogonal width of the length direction of absorbent main body 10 It is consistent to spend direction.

In the present specification, " skin opposite face " is wearing for absorbent commodity or its member of formation (such as absorber 4) Towards the face of the skin side of wearer, i.e. in contrast close to the side of the skin of wearer, " non-skin when absorbent commodity Opposite face " is (being worn towards the side opposite with skin side when wearing absorbent commodity for absorbent commodity or its member of formation Clothing side) face, the i.e. in contrast side of the skin far from wearer.Furthermore described herein refers to remaining logical " when wearing " It is normal it is appropriate wear position, i.e. the absorbent commodity the state for correctly wearing position, be not in including absorbent commodity The case where state of position offset is worn from this.

As shown in Figures 2 and 3, positive dough sheet 2 coats the whole region of the skin opposite face of absorber 4, and it is along longitudinal X Both side edges be located at the position roughly the same with the both side edges along longitudinal X of absorber 4.On the other hand, the cladding of back sheet 3 is inhaled The whole region of the non-skin opposite face of acceptor 4, so from the both side edges along longitudinal X of absorber 4 towards lateral Y on the outside of prolong Stretching is gone, and forms flank section 10S together with following leakage-proof turnup formation piece 5.Back sheet 3 forms with leakage-proof turnup and uses piece 5 In the extension of the both side edges along longitudinal X from absorber 4, by being engaged well known to adhesive, heat-sealing, ultrasonic sealing function etc. Means and be interconnected.In addition, the extension of positive dough sheet 2 and back sheet 3 at the both ends of longitudinal X from absorber 4, by known Engagement means and be interconnected.It can also be engaged respectively by adhesive between positive dough sheet 2 and back sheet 3 and absorber 4.Make For positive dough sheet 2 and back sheet 3, can use with no particular limitation previous used each in the absorbent commodities such as sanitary napkin Kind material etc..For example, as positive dough sheet 2, non-woven fabrics or apertured film of single or multi-layer structure etc. can be used.As back sheet 3, the resin film etc. of penetrability can be used.

As shown in Figure 1, flank section 10S is significantly protruded in the outside of middle part M towards transverse direction Y, as a result, in absorbability The left and right sides along longitudinal X of main body 10, which is extended, a pair of of tab portion 10W, 10W.In vertical view as shown in Figure 1, the wing Piece portion 10W has the generally trapezoidal shape that bottom (the longer side compared with upper bottom) is located at 10 side of absorbent main body, in its non-flesh Skin opposite face is formed with the tab portion adhesive portion (not shown) that tab portion 10W is fixed on to the worn the clothes object such as shorts.Tab portion Non- skin opposite face, that is, outer surface side of 10W towards the crotch of the worn the clothes object such as shorts is turned back and is used.In addition, flank section 10S It is also significantly protruded towards the outside of transverse direction Y in rear part R, as a result, in the left and right two along longitudinal X of absorbent main body 10 Side, which is extended, alar part 10H, 10H after a pair.About rear alar part 10H, do not turn back when being fixed in worn the clothes object, and It is the state for extending its non-skin opposite face towards the side of absorbent main body 10 with the state being unfolded, it is non-via its is formed in The rear adhesive portion (not shown) of skin opposite face and the skin opposite face i.e. inner surface for being fixed on worn the clothes object.Above-mentioned tab portion Adhesive portion and above-mentioned rear adhesive portion are preceding by the cladding (not shown) of the stripping film comprising film, non-woven fabrics, paper etc. in use.

In the both sides along longitudinal X of the skin opposite face of skin opposite face, that is, positive dough sheet 2 of absorbent main body 10, with When looking down with the mode Chong Die along the left and right sides portion of longitudinal X of absorber 4, spread longitudinal X's of absorbent main body 10 Substantially overall length is configured with a pair of of leakage-proof turnup and is formed with piece 5,5.A pair of of leakage-proof turnup formation piece 5,5 is utilized respectively in longitudinal X The closing line 51 of upper extension, well known to adhesive etc. engagement means by be engaged in positive dough sheet 2, and compared with closing line 51 by laterally The interior side edge part of the inside of Y becomes free end.Leakage-proof turnup formation for example can also be turned back free end side with piece 5, and The inside of the fold back portion configures the leakage-proof turnup formation elastic component extended on longitudinal X.Leakage-proof turnup is configured if so Formation elastic component just forms fold back portion towards wearer then by the convergent force of leakage-proof turnup formation elastic component Skin side erect leakage-proof turnup.Leakage-proof turnup is formed if so, then can prevent from draining to the skin opposite face of sanitary napkin 1 The discharged liquids such as menses side leakage.

Absorber 4 is illustrated, absorber 4 contains superabsorbent polymer and hydrophilic fibre.As high-absorbable Polymer usually using granular superabsorbent polymer, but is alternatively the superabsorbent polymer of threadiness.In use In the case of granular superabsorbent polymer, shape can be the arbitrary shape in spherical, blocky, bag-shaped or indefinite shape. As superabsorbent polymer, the polymer or copolymer of usually usable acrylic acid or alkali metal salts of acrylic acids.In addition, conduct Hydrophilic fibre, which can be script, has hydrophilic fiber, or can be the fibre for obtaining hydrophobic fibre progress hydrophilicity-imparting treatment Dimension, particularly preferably the former fiber.There is hydrophilic fiber as script, the fiber for being naturally, cellulose can be enumerated The regenerated fiber or semisynthetic fibre of system are preference can illustrate paper pulp and artificial silk as preferred fiber.With regard to paper pulp Speech, in addition to the wood pulps such as softwood kraft pulp, broad leaf tree kraft pulp, also non-timbers such as cotton paper slurry, careless class paper pulp Paper pulp etc., but there is no particular restriction.In addition, it is possible to use the intramolecular of cellulose fibre and/or intermolecular cross-linking is made to obtain Cross-linked cellulose fibres and the cellulose fibre that mercerization finish and the bulkiness as obtaining are carried out to wood pulp.

As shown in FIG. 1 to 3, the absorber 4 of sanitary napkin 1 be configured to include：Central absorbent piece 41, when wearing with The excretory portion of wearer is oppositely disposed；With absorbent body piece 42, have Chong Die with central absorbent piece 41 when looking down Part and the part extended from the periphery of central absorbent sheet 41 towards outside, and the laminate structure that absorber 4 is multiple. Two absorbent sheets 41,42 contain hydrophilic fibre and superabsorbent polymer.

In the present invention, so-called " absorbent sheet " refers to comprising absorbabilities materials such as superabsorbent polymer, hydrophilic fibres The absorbent of the sheet of material is different from absorbent material carrying out fiber accumulations body made of fiber accumulations.In general, absorbing Property piece compared with the fiber accumulations body of absorbent material thinner thickness and for rigidity it is low, so with absorbent sheet absorbability object Product are the slim of thinner thickness, and soft and wearing feeling is excellent, and are compactly folded and treatability is also excellent.Just more effectively utilize The speciality of the absorbent sheet, acquisition fully have liquid diffusibility, liquid retainability and the good absorbent commodity of wearing feeling For viewpoint, the 5cN/cm of each absorbent sheet²Load under thickness be preferably 0.1mm or more, and then preferably 0.3mm with On, also, it is preferred that for 2mm hereinafter, being preferably 1.5mm or less in turn.As absorbent sheet, such as using Japanese Patent No. Recorded absorbent sheet in No. 2955223 No. 2963647 bulletins, Japanese Patent No. bulletins.As absorbent sheet, if illustrating excellent The absorbent sheet of choosing can then enumerate bonding force caused by the superabsorbent polymer via moisture state or in addition add viscous The binders such as mixture or binding property fiber make between composition fiber or constitute to tie combination system between fiber and superabsorbent polymer As absorbent sheet obtained from sheet.

As shown in Figure 1, central absorbent piece 41 is in the portion for being biased against middle part M of middle part M or middle part M and front part F Point, it configures in sanitary napkin 1 or the central portion of the lateral Y of absorbent main body 10.In addition, as shown in Fig. 2, 41 shape of central absorbent piece At multilayered structure made of folding the piece 41.The folding multilayer structure of the central absorbent piece 41 is to overlook 1 for substantially The piece 41 of rectangular shape is bent at 2 folding lines towards same surface side (skin is with respect to surface side), and is formed as so-called winding The structure of the state of three foldings, and the 3-tier architecture with the piece 41, above-mentioned 2 folding lines by by the piece 41 in the lateral direction y substantially The position of trisection simultaneously extends on longitudinal X.

In addition, as shown in Figures 2 and 3, absorbent body piece 42 is also formed multilayered structure made of the piece 42 folding.It should The folding multilayer structure of absorbent body piece 42 is extend the piece 42 that 1 vertical view is rectangular shape on longitudinal X 2 Towards same surface side (non-skin is with respect to surface side) bending at folding line, and make existing each other along two ora terminalis of longitudinal X for the piece 41 The central portion of lateral Y is overlapped and the structure of formation, and the overlapping portion of two ora terminalis has the 3-tier architecture of the piece 42, removes the overlapping portion Part in addition has 2 layers of structure of the piece 42.The folding multilayer structure of absorbent body piece 42 forms the shape of absorber 4.

In this way, the absorber 4 of sanitary napkin 1, which has in the inside of the foldable structure of 1 absorbent body piece 42, is surrounded by 1 When the composition of the foldable structure of piece central absorbent piece 41, the central portion of the lateral Y of middle part M is due to being configured with the middle absorbent Property piece 41 foldable structure, and as with peripheral portion compared with thickness it is larger and towards skin with respect to surface side swell in high portion 43.Separately On the one hand, the position in addition to middle high portion 43 of absorber 4 is configured to the foldable structure of no central absorbent piece 41 and includes master The foldable structure of body absorbent sheet 42 becomes the standard absorption portion 44 that thickness is smaller compared with middle high portion 43.

High portion 43 forms rectangular shape when looking down in as shown in Figure 1, and makes its length direction and longitudinal direction X consistently Configure the central portion in the lateral Y of middle part M.The plan view shape in high portion 43 can be selected arbitrarily in but, be not limited to rectangular Shape shape.The length of longitudinal X in middle high portion 43 is preferably 60mm or more, and then preferably 80mm or more, also, it is preferred that being 150mm is hereinafter, be preferably 120mm or less in turn.The length of the lateral Y in high portion 43 is preferably 25mm or more, Jin Eryou in addition, It is selected as 30mm or more, also, it is preferred that for 55mm hereinafter, being preferably 50mm or less in turn.

The thickness in high portion 43 is preferably 0.7mm or more in absorber 4, and then preferably 1mm or more, also, it is preferred that being 5mm is hereinafter, be preferably 4mm or less in turn.By the way that the thickness in middle high portion 43 is set as the range, it is easy to take into account and is formed with middle high portion The good wearing feeling and high absorbent properties of 43 middle part M.In addition, there is the wing as sanitary napkin 1 in absorbent commodity In the case of piece portion, it is easy to inhibit absorber in the fold of middle part M when wearing.In addition, the standard absorption portion 44 of absorber 4 Thickness be preferably 0.3mm or more, and then preferably 0.5mm or more, also, it is preferred that for 3mm hereinafter, being preferably 2.5mm in turn Below.By the way that the thickness in standard absorption portion 44 is set as the range, high absorbent properties can be further improved and to wearer Movable tracing ability.Absorber and the thickness of absorbent sheet are measured by following methods.

The assay method ＞ of the thickness of ＜ absorbent sheets and absorber

As the absorbent sheet of measuring object or absorber horizontal position will be statically placed in a manner of non-wrinkled or bending It sets, measures 5cN/cm²Load under thickness.The measurement of the thickness of the present invention uses thickness gauge PEACOCK DIAL UPRIGHT GAUGES R5-C (OZAKI MFG.CO.LTD. manufactures).At this point, the determination part in the front end of thickness gauge and measuring object /, the plate (acrylic panel of thickness 5mm or so) for circle or square is overlooked in configuration, and becomes 5cN/cm with load² Mode adjustment plate size.

In the skin opposite face of the rear part R of sanitary napkin 1, as positive dough sheet 2 and absorber 4 towards the skin phase with wearer Slot is formed with outer groove 6 and inside groove 7 in vertical view as shown in Figure 1 made of anti-3 side of side, that is, back sheet is integrally recessed, should Outer groove 6 forms the convex towards the rear end protrusion of longitudinal X of sanitary napkin 1, which is located at the region surrounded by the outer groove 6, and Form the convex towards the rear end protrusion of longitudinal X of sanitary napkin 1.Slot 6,7 forms threadiness when looking down." threadiness " described herein Refer to that the slot i.e. shape of recessed portion is not limited to straight line when looking down, also includes curve.Linear slot 6,7 can be continuous lines For the discontinuous line of such as dotted line etc.." slots of continuous lines " described herein include mix slotted depth relatively it is deeper get deeply stuck in portion and The form of the relatively shallower shallow concave portion of the depth of slot, in addition, " slot of discontinuous line " includes the recessed portion of positive dough sheet 2 and non-recess The form that portion, that is, flat part alternately configures on the extending direction of the slot.In the slot of the discontinuous line, above-mentioned non-recessed portion The slot extending direction length, that is, recessed portion it is mutual interval be usually 5.0mm or less.By slot 6,7, suppression can be played The in-plane of absorber 4 processed especially the diffusion of the liquid of transverse direction Y, prevent the fold and other effects of absorber 4.Slot 6,7 can By with Embossing processings such as press process or ultrasonic embossings hot or that be not accompanied by heat, conventionally being formed.In slot 6, in 7, make positive dough sheet 2 and the integration of absorber 4 bys heating etc., the bottom of slot 6,7 density compared with their peripheral portion It is high.

In vertical view as shown in Figure 1, outer groove 6 forms the closed ring-type in high portion 43 and inside groove 7 in encirclement, and will defend Raw towel 1 or absorber 4 are halved and on the basis of the longitudinal centre line CL extended on longitudinal X and symmetrically in the lateral direction y It is formed.Outer groove 6 is not only formed in rear part R, also continuous to rear part R by middle part M from front part F.Inside groove 7 relatively in high portion 43 lean on the rear of longitudinal direction X, are symmetrically formed on the basis of longitudinal centre line CL, and in the rear end of longitudinal X 70 with convex The top gone out, 43 side of high portion is opened during the front end side of longitudinal X is.

As shown in Figure 1 and Figure 4, as the absorber 4 of the rear part R in above-mentioned 2nd region across by absorber 4 in lateral Y Upper bisection and the imaginary longitudinal centre line CL extended on longitudinal X in its both sides there is a pair of be configured with to extend on longitudinal X Rear slot R1 rear gap zone RSr, RSl.One rear gap zone RSr and another rear gap zone RSl It separates in the lateral direction y.

Rear slot R1 is formed at the joint-cutting of absorber 4, in the forming position of rear slot R1, the formation of absorber 4 Material is cut off or forming material is spaced from each other and detaches compared with other positions.In sanitary napkin 1, slot R1 formation in rear is bowed Apparent time is linear, but it's not limited to that or wave etc. for the plan view shape of rear slot R1.In addition, rear slot R1 , also can be parallel with longitudinal centre line CL unlike diagram as long as extending on longitudinal X, and with longitudinal centre line CL institute at As long as angle be less than 45 degree.

In a pair of of rear gap zone RSr, RSl, be each configured with only 1 rear slot R1 or be distributed it is a plurality of after Square slot R1.In sanitary napkin 1, as shown in Figure 1 and Figure 4, it is distributed 4 respectively in a pair of of rear gap zone RSr, RSl Rear slot R1.Rear gap zone RSr, RSl be configured with only 1 rear slot R1 in the case of, 1 rear gap Seam R1 itself is rear gap zone RSr, RSl.In addition, being distributed a plurality of rear gap in rear gap zone RSr, RSl In the case of stitching R1, as shown in figure 4, the range of the region RSr, RSl are respectively will be from the rear gap positioned at the forefront of longitudinal X Be set as longitudinal length until the front end to the rear end for the rear slot R1 for being located at rearmost for stitching R1, and by from positioned at lateral Y most It is set as bowing for lateral length until the interior lateral margin of the rear slot R1 of inside to the lateral border of slot R1 in rear on the outermost side The range of apparent time quadrangle.

Being located at the quantity of the rear slot R1 of a pair of of rear gap zone RSr, RSl, there is no particular restriction, and preferably 2 It is more than item, and then preferably 3 or more, also, it is preferred that for 9 hereinafter, being preferably 7 or less in turn.

In the case where a pair of of rear gap zone RSr, RSl is respectively provided with a plurality of rear slot R1, a plurality of rear gap Stitching any one of the mutual plan view shapes of R1 and angle of inclination relative to longitudinal centre line CL or both can be mutually identical, It can be different.In addition, in the case where a pair of of rear gap zone RSr, RSl is respectively provided with a plurality of rear slot R1, it is more to compare this Rear slot R1 is arranged in the pattern of a row on longitudinal X, preferably there is the position difference of transverse direction Y as shown in Figure 4 2 or more rear slot R1 pattern.

In sanitary napkin 1, as shown in figure 4, the vertical view shape of the respective a plurality of rear slot R1 of rear gap zone RSr, RSl Shape and angle of inclination relative to longitudinal centre line CL are mutually identical, and each rear slot R1 and longitudinal centre line CL is parallelly with straight Line extends.At rear, gap zone RSr, RSl is respectively present 4 rear slot R1,4 rear slot R1 in longitudinal X and The state configuration disperseed on the two directions lateral Y, it is more specifically in zigzag configuration.Rear gap zone RSr, RSl The staggered configuration of respective rear slot R1 is specifically as described below：It is formed with the interval on longitudinal X and is configured with a plurality of (2 Item) rear slot R1 slot row, and the slot is listed in projected on lateral Y when, constitute the slot row rear Between the projection image of slot R1, configured with the projection image for arranging other rears slot R1 adjacent in the lateral direction y with the slot.

As shown in figure 3, rear slot R1 is preferably the laminated body for penetrating through the absorbent sheet for constituting absorber 4.In addition, as schemed Shown in 3, rear slot R1 is preferably the upper and lower positive dough sheet 2 and back sheet 3 for being not formed at configuration in absorber 4, in turn, also not It is formed in the intermediate for including non-woven fabrics configured sometimes between positive dough sheet 2 and absorber 4.

One of main feature as sanitary napkin 1 can be listed below aspect as shown in Figure 1 and Figure 4：1) rear slot area Domain RSr, RSl are across longitudinal centre line CL in its both sides configured with a pair；It is configured at conduct with 2) rear gap zone RSr, RSl The rear part R in above-mentioned 2nd region, that is, be arranged to compared with central fold line CFL rearward, that is, rear gap zone RSr, RSl Rear slot R1 is not Chong Die with central fold line CFL.

In common sanitary napkin, if forming the fold line as the central fold line CFL of sanitary napkin 1, Worry causes not to be close to the skin of wearer when in use and leave skin because of the influence of its folding line, conformable or anti-leak Property becomes inadequate.Especially, the forming position of the central fold line CFL of sanitary napkin 1 is big thick not as middle high portion 43 Degree and position with a higher rigidity, so be easy to show the folding line generated by central fold line CFL, and conformable drop strongly It is low to be easy notableization.However, due to sanitary napkin 1 have it is above-mentioned 1) and 2), so when wearing sanitary napkin 1, by a pair of of rear gap The part (central portion of the lateral Y of rear part R) that seam region RSr, RSl are clipped is with along the ditch of the buttocks of wearer (gluteal fold) Mode swell deformation and skin relative to wearer close property be particularly easy to the position being lower, i.e., therefrom high portion 43 The rear end of longitudinal X to the position of central fold line CFL can also follow the deformation of rear part R and be tightly attached to the skin of wearer. Therefore, although sanitary napkin 1 is formed with central fold line CFL, it is close to and is not likely to produce gap, Neng Gouyou with the skin of wearer Prevent to effect the liquid leakage from the gap.

Especially, by using it is above-mentioned 1), absorber 4 clipped by a pair of of rear gap zone RSr, RSl part (after The central portion of the lateral Y of square portion R) slot (joint-cutting) is not formed, so have compared with gap zone RSr, RSl of rear higher Rigidity, (be located at the area of position identical with rear gap zone RSr, RSl especially on longitudinal X as a result, rear part R Domain and its near) flexible formed more lateral Y central portion lean on transverse direction Y outside.Therefore, when wearing sanitary napkin 1, In the case of applying the power of compressing absorber 4 towards lateral Y by the huckle of wearer, by a pair of of rear gap zone RSr, The skin side of the central portion for the lateral Y that RSl is clipped towards wearer are swelled in a manner of with face, plane and steadily along wearing The gluteal fold for the person of wearing.In addition, in this way, being deformed and along the part of the gluteal fold of wearer becoming the skin side protuberance towards wearer The both sides of lateral Y are configured with rear gap zone RSr, RSl, will using the rear slot R1 of rear gap zone RSr, RSl Absorber 4 cut off, so can inhibit discharged liquid towards the diffusion in face direction, especially towards the diffusion of lateral Y, be thus effectively prevented Liquid flows and leakage.

In addition, by using it is above-mentioned 2), the rear slot R1 of rear gap zone RSr, RSl not with central fold line CFL Overlapping, rear slot R1 is formed in the position for separating predetermined distance on longitudinal X with central fold line CFL, so in center The forming position of fold line CFL and its near, the rigid reduction caused by slot (joint-cutting) is formed is suppressed to minimum limit, Therefore, when wearing sanitary napkin 1, central fold line CFL can upward be squeezed from the sides rear part R, and contribute to conformable raising.

1) and 2) for more reliably playing the viewpoint using the above-mentioned function and effect obtained, a pair of of rear gap zone The interval d1 of the most narrow part in interval on lateral Y between RSr, RSl is preferably 10mm or more (with reference to Fig. 4), and then preferably For 20mm or more, also, it is preferred that for 40mm hereinafter, being preferably 30mm or less in turn.

In addition, for identical viewpoint, the interval d2 of central fold line CFL and rear gap zone RSr, RSl, i.e. in Entreat fold line CFL and the interval d2 (ginsengs positioned at the rear slot R1 of the forefront of longitudinal direction X in gap zone RSr, RSl of rear According to Fig. 4) be preferably 10mm or more, and then preferably 15mm or more, also, it is preferred that for 40mm hereinafter, be preferably 35mm in turn with Under.Furthermore central fold line CFL in actual product usually on longitudinal X have defined length, that is, width, and formed compared with Faciola shape when the vertical view of filament as shown in the figure more wide cut, the above-mentioned interval of the central fold line CFL about this faciola shape D2 refers to will be along a pair of of side end (front side of the extending direction of central fold line CFL (being lateral Y in the form of diagram) End, rear side end) in the rear side positioned at longitudinal direction X measurement position of the rear side end as the sides central fold line CFL It sets obtained from being measured, that is, refer to rear side end and rear gap zone RSr, RSl of central fold line CFL Distance.In addition, in the case where central fold line is not as shown in Figure 4 parallel with lateral Y linear, the non-rectilinear The central fold line CFL of the shape and interval d2 of rear gap zone RSr, RSl refers to that will be located in this on longitudinal centre line CL The above-mentioned rear side end of centre fold line CFL is as obtained from the locating and be measured of the sides central fold line CFL.

In addition, for identical viewpoint, the size in each portion etc. of rear slot R1 is preferably set as follows.

The length L1 of longitudinal X of rear slot R1 is preferably 10mm or more (with reference to Fig. 4), and then preferably 15mm or more, Also, it is preferred that for 35mm hereinafter, being preferably 25mm or less in turn.

The length of the lateral Y of rear slot R1, that is, width b1 is preferably 0.1mm or more (with reference to Fig. 4), and then preferably 0.2mm or more, also, it is preferred that for 1mm hereinafter, being preferably 0.8mm or less in turn.

In gap zone RSr, RSl of rear, a plurality of rear slot R1 is configured on longitudinal X made of a row longitudinal The interval of longitudinal X of rear slot R1, R1 in slot row are (mutually closest in the longitudinal direction in 1 rear gap zone The mutual longitudinal interval of rear slot) d3 (with reference to Fig. 4) is preferably 10mm or more, and then preferably 15mm or more, moreover, Preferably 35mm is hereinafter, be preferably 25mm or less in turn.

In gap zone RSr, RSl of rear, by multiple rear slot R1 configure in the lateral direction y it is in a row made of laterally The interval of the lateral Y of rear slot R1, R1 in slot row are (mutually closest in the horizontal in 1 rear gap zone The mutual lateral interval of rear slot) d4 (with reference to Fig. 4) is preferably 5mm or more, and then preferably 10mm or more, moreover, Preferably 25mm is hereinafter, be preferably 20mm or less in turn.

In sanitary napkin 1, as shown in Figure 1, in rear part R, outer groove 6 or inside groove 7 are Chong Die with rear slot R1.That is, such as When vertical view shown in FIG. 1, at least part and outer groove 6 or inside groove of multiple rear slot R1 of rear gap zone RSr, RSl The overlapping of both 7 or two slot 6,7.By this composition, the bendability of the lap of slot 6,7 and rear slot R1 is more into one Step improve, so can make the part (central portion of the lateral Y of rear part R) clipped by rear gap zone RSr, RSl more into One step stablize lifting, so as to further effectively realize the wearer along sanitary napkin 1 buttocks ditch (gluteal fold) Change in shape.

Rear slot R1 (rear gap zone RSr, RSl) is located at the rear end with longitudinal X of inside groove 7 preferably on longitudinal X 70 identical positions or the front that longitudinal direction X is depended on compared with rear end 70.In sanitary napkin 1, as shown in Figure 1, using the latter.Pass through the structure At, can more effectively show for making inside groove 7 along the inside groove 7 of the ditch (gluteal fold) of the buttocks of the wearer of sanitary napkin 1 and its Neighbouring change in shape.

In sanitary napkin 1, as shown in Figure 1, Figure 2 and Figure 4, absorber 4 has in middle part M has been distributed multiple indulging The central gap zone MS of the central slot M1 extended on X.Central gap zone MS is deposited in a manner of Chong Die with middle high portion 43 .Due to there is central gap zone MS in middle high portion 43, so even when wearing sanitary napkin 1, by the huckle of wearer Applying the power for compressing absorber 4 towards lateral Y, absorber 4 also can fine deform at multiple positions of central gap zone MS, So being not easy that absorber 4 or sanitary napkin 1 is made to generate the deeper wrinkle of depth.Therefore, it is possible to be effectively prevented because of deeper wrinkle And generate unfavorable condition, such as wearer do not feel well sense, liquid along wrinkle flow and occur leakage.Therefore, according to Sanitary napkin 1, by using the function and effect of both central gap zone MS and rear gap zone RSr, RSl, when wearing It is close to the skin of wearer and is not likely to produce gap, to is effectively prevented the liquid leakage from the gap.

Central slot M1 is formed at the joint-cutting of absorber 4, in the forming position of central slot M1, the formation of absorber 4 Material is cut off or forming material is spaced from each other and detaches compared with other positions.In sanitary napkin 1, central slot M1 formation is bowed Apparent time is linear, but it's not limited to that or wave etc. for the plan view shape of central slot M1.In addition, central slot M1 , also can be parallel with longitudinal centre line CL unlike diagram as long as extending on longitudinal X, and with longitudinal centre line CL institute at As long as angle be less than 45 degree, preferably less than 30 degree, particularly preferably less than 10 degree, most preferably 0 degree.

In central gap zone MS simply by the presence of 1 or more central slot M1.Centrally located gap zone MS's There is no particular restriction for the quantity of central slot M1, preferably 10 or more, and then preferably 20 or more, also, it is preferred that being 40 Item is hereinafter, be preferably 30 or less in turn.In the case where central gap zone MS has multiple center slot M1, during this is a plurality of Entreat any one of plan view shape of slot M1 and the angle of inclination relative to longitudinal centre line CL or both mutually identical, It can be different.In addition, in the case where central gap zone MS has a plurality of center slot M1, compares multiple center slot M1 and exist It is arranged in the pattern of a row on longitudinal X, preferably there is 2 or more different centers of the position of transverse direction Y as shown in Figure 4 The pattern of slot M1.

Size in each portion of central slot M1 etc. is preferably set as follows.

The length L2 of longitudinal X of central slot M1 is preferably 10mm or more (with reference to Fig. 4), and then preferably 15mm or more, Also, it is preferred that for 35mm hereinafter, being preferably 25mm or less in turn.

The length of the lateral Y of central slot M1, that is, width b2 is preferably 0.1mm or more (with reference to Fig. 4), and then preferably 0.2mm or more, also, it is preferred that for 1mm hereinafter, being preferably 0.8mm or less in turn.

In central gap zone MS, multiple center slot M1 are configured to made of a row longitudinal slot on longitudinal X Interval (in the central gap zone mutual closest central gap in the longitudinal direction of longitudinal X of central slot M1, M1 in row Stitching mutual longitudinal interval) d5 (with reference to Fig. 4) is preferably 10mm or more, and then preferably 15mm or more, also, it is preferred that being 35mm is hereinafter, be preferably 25mm or less in turn.

In central gap zone MS, multiple center slot M1 configure in the lateral direction y it is in a row made of lateral slot row Interval (in the central gap zone mutual closest central slot in the horizontal of the lateral Y of interior central slot M1, M1 Mutual lateral interval) d6 (with reference to Fig. 4) is preferably 5mm or more, and then preferably 10mm or more, also, it is preferred that being 25mm Hereinafter, being preferably 20mm or less in turn.

In addition, the interval d1 (ginsengs of the most narrow part in interval on lateral Y between a pair of of rear gap zone RSr, RSl According to Fig. 4) preferably on 2 center mutual transverse direction Y of slot M1, M1 adjacent in the lateral direction y in central gap zone MS D6 (with reference to Fig. 4) is spaced compared to wider, and with by 1 area of the lateral center in the case of middle high portion 43 in the lateral direction y 5 deciles The lateral length in domain is compared to wider.By this composition, when wearing sanitary napkin 1, the part with interval d1 be (rear part R's The central portion of lateral Y) further steadily along the gluteal fold of wearer, it is conformable and then leak-proof can further carry It is high.Be spaced d1 be spaced the ratio of d6 i.e. the former/the latter is preferably 1.1 or more, and then preferably 1.3 or more, also, it is preferred that being 3 hereinafter, be preferably 2.5 or less in turn.In addition, interval d1 and the lateral length in 1 region of the lateral center in middle high portion 43 Ratio i.e. the former/the latter is preferably 1.5 or more, and then preferably 2 or more, also, it is preferred that for 6 hereinafter, be preferably in turn 5 with Under.

In sanitary napkin 1, as shown in figure 4, the plan view shape of multiple central slot M1 of central gap zone MS and opposite Mutually identical in the angle of inclination of longitudinal centre line CL, each center slot M1 and longitudinal centre line CL is parallelly with linear extension. Multiple center slot M1 of central gap zone MS are configured with the state disperseed on longitudinal X and the two directions transverse direction Y, more It is in zigzag configuration for body.The staggered configuration of center slot M1 is identical as the above-mentioned staggered configuration of rear slot R1.

As shown in Fig. 2, center slot M1 preferably penetrates through the laminated body for the absorbent sheet for constituting absorber 4.In addition, such as Fig. 2 It is shown, central slot M1 be preferably not formed at configuration absorber 4 upper and lower positive dough sheet 2 and back sheet 3, in turn, also not shape Cheng Yu configures the intermediate for including non-woven fabrics between positive dough sheet 2 and absorber 4 sometimes.

In sanitary napkin 1, as shown in Figure 1 and Figure 4, a part of multiple central slot M1 of central gap zone MS, more Specifically, heavy not with central fold line CFL positioned at the central slot M1 of the rearmost of longitudinal direction X in central gap zone MS It is folded, and on longitudinal X the high portion of span centre 43 rear end 43b.By this composition, in sanitary napkin 1 when wearing, middle high portion 43 be easy with It is deformed along the mode of the body of wearer, the conformable, leak-proof of sanitary napkin 1 can be improved further.

In sanitary napkin 1, rear gap zone RSr, RSl separates fixation with central gap zone MS on longitudinal X respectively It is more than distance.Moreover, the slot of absorber 4 is not present on central fold line CFL.By in this way, inhibiting centrally located slot The forming position of central fold line CFL between region MS and rear gap zone RSr, RSl and its neighbouring because forming slot Rigid reduction caused by (joint-cutting), as a result, when wearing sanitary napkin 1, central fold line CFL can be by before longitudinal X Two sides squeeze upward afterwards, conformable further to improve.For the viewpoint, the rear end of central gap zone MS is (that is, in Entreat the rear end of the central slot M1 of the rearmost in gap zone MS positioned at longitudinal direction X) and rear gap zone RSr, RSl front end The interval distance of (that is, positioned at the front end of the rear slot R1 of the forefront of longitudinal direction X in each of rear gap zone RSr, RSl) (referring to Fig.1) it is preferably 20mm or more from d7, more preferably 25mm or more.In addition, if spacing distance d7 is long, it is likely that in The decreased effectiveness that centre fold line CFL is close to skin, easy tos produce the gap of sanitary napkin 1 and skin, so spacing distance S7 The upper limit is preferably 40mm, and then preferably 35mm.

More than, the present invention is described, but present invention is not limited to the embodiments described above, can be in not departing from the present invention Purport in the range of suitably changed.For example, in the above-described embodiment, absorber is only made of absorbent sheet, but Also it can only the fiber accumulations body made of absorbent material is carried out fiber accumulations be constituted, also may be configured as comprising the two.But The so-called slim existing absorbent commodity being only made of absorbent sheet such as absorber is in most cases relative to buttocks It is conformable insufficient, according to the present invention, with regard to for the viewpoint of the conformable raising of buttocks, the present invention is special as described above It Shi Yu not the absorbent commodity that is only made of absorbent sheet of absorber.In addition, as embodiment described above, the suction of absorber The multilayered structure of the property received piece can be 1 absorbent sheet is folded into the composition formed, or be multiple absorbent sheets are not folded and Obtained composition is laminated, or be alternatively by two kinds constitute it is compound obtained from constitute.

The present invention can be applied to absorb the storewide of menses.As the example of this article, except such as above-mentioned reality Other than the sanitary napkin for applying mode, panty liner and sliver etc. can be also enumerated, but be not limited to these.It is sent out about above-mentioned Bright embodiment, and then note below is disclosed.

1 ＞ of ＜

A kind of absorbent commodity has the longitudinal direction in the front-back direction corresponding to wearer and orthogonal to that transverse direction, and Positive dough sheet including liquid retainability absorber and the opposite surface side of skin for being configured at the absorber, above-mentioned absorbent commodity is with logical It is boundary to cross 1 fold line for being folded and being formed, and is divided into the 2nd region in the 1st region and rear longitudinally forward, on Stating the 1st region includes：Middle part, it includes the parts opposite with the excretory portion of wearer when wearing；And front part, relatively should Middle part is by longitudinally forward, above-mentioned 2nd region includes to be located at the rear part for leaning on longitudinal rear compared with the middle part, above-mentioned 2nd region Above-mentioned absorber across the imaginary longitudinal centre line halved the absorber in the horizontal and extended in the longitudinal direction, its two Side has a pair of rear gap zone configured with the rear slot extended in the longitudinal direction.

2 ＞ of ＜

Absorbent commodity as described in 1 ＞ of ＜, wherein above-mentioned absorber is multiple with being distributed in above-mentioned middle part Longitudinal front end of the central gap zone of the central slot extended in the longitudinal direction, above-mentioned rear gap zone is located at and the center gap The longitudinally aft end in region is stitched in the position of above-mentioned longitudinally spaced 20mm or more.

3 ＞ of ＜

Absorbent commodity as described in 2 ＞ of ＜, wherein longitudinal length of above-mentioned center slot is 10mm or more and 35mm Hereinafter, preferably 15mm or more and 25mm or less.

4 ＞ of ＜

Absorbent commodity as described in 3 ＞ of ＜ 2 ＞ or ＜, wherein the lateral length of above-mentioned center slot be 0.1mm with Upper and 1mm is hereinafter, preferably 0.2mm or more and 0.8mm or less.

5 ＞ of ＜

Absorbent commodity as described in any one of 4 ＞ of ＜ 2 ＞ to ＜, wherein in above-mentioned central gap zone, it is multiple It is divided between the longitudinal direction for the center slot that above-mentioned center slot is configured in the longitudinal direction in longitudinal slot row made of a row 10mm or more and 35mm are hereinafter, preferably 15mm or more and 25mm or less.

6 ＞ of ＜

Absorbent commodity as described in any one of 5 ＞ of ＜ 2 ＞ to ＜, wherein in above-mentioned central gap zone, it is multiple Above-mentioned center slot configure in the horizontal it is in a row made of the center slot in lateral slot row transverse direction between be divided into 5mm Above and 25mm is hereinafter, preferably 10mm or more and 20mm or less.

7 ＞ of ＜

Absorbent commodity as described in any one of 6 ＞ of ＜ 2 ＞ to ＜, between the above-mentioned rear gap zone of one pair of which The interval of the most narrow part in interval in transverse direction relative to 2 adjacent in the horizontal in above-mentioned central gap zone among the above Entreat the ratio at the interval in the mutual transverse direction of slot i.e. the former/the latter is 1.1 or more and 3 hereinafter, preferably 1.3 or more and 2.5 Below.

8 ＞ of ＜

Absorbent commodity as described in any one of 7 ＞ of ＜ 2 ＞ to ＜, wherein cross of the above-mentioned absorber in above-mentioned middle part Have thickness big compared with peripheral portion to central portion and is present in towards high portion, above-mentioned center gap zone in the opposite surface side protuberance of skin High portion in this.

9 ＞ of ＜

Absorbent commodity as described in 8 ＞ of ＜, the interval between the above-mentioned rear gap zone of one pair of which in the horizontal is most The interval of narrow part is wider than the above-mentioned central slot of adjacent in the horizontal in above-mentioned central gap zone 2 each other in transverse direction On interval, and be wider than the transverse direction in 1 region of the lateral center in the case of high portion among the above in the horizontal 5 deciles is long Degree.

10 ＞ of ＜

Absorbent commodity as described in 9 ＞ of ＜ 8 ＞ or ＜, between the above-mentioned rear gap zone of one pair of which in the horizontal Be spaced the interval of most narrow part with by 1 region of the lateral center in the case of high portion among the above in the horizontal 5 deciles The ratio of lateral length i.e. the former/the latter is 1.5 or more and 6 hereinafter, preferably 2 or more and 5 or less.

11 ＞ of ＜

Absorbent commodity as described in any one of 10 ＞ of ＜ 8 ＞ to ＜, wherein it is above-mentioned center gap zone it is multiple on State the part of central slot not with above-mentioned folding line overlap, and in the longitudinal direction across the longitudinally aft end in high portion among the above.

12 ＞ of ＜

Absorbent commodity as described in any one of 11 ＞ of ＜ 8 ＞ to ＜, wherein longitudinal length in high portion is among the above 60mm or more and 150mm are hereinafter, preferably 80mm or more and 120mm or less.

13 ＞ of ＜

Absorbent commodity as described in any one of 12 ＞ of ＜ 8 ＞ to ＜, wherein the lateral length in high portion is among the above 25mm or more and 55mm are hereinafter, preferably 30mm or more and 50mm or less.

14 ＞ of ＜

Absorbent commodity as described in any one of 13 ＞ of ＜ 8 ＞ to ＜, wherein above-mentioned absorber is by above-mentioned middle part Using absorbent sheet formed central absorbent piece and cover the central absorbent piece absorbent body piece constitute, the center Absorbent sheet is configured at high portion among the above.

15 ＞ of ＜

Absorbent commodity as described in any one of 14 ＞ of ＜ 8 ＞ to ＜, wherein the portion high among the above of above-mentioned absorber Thickness is 0.7mm or more and 5mm hereinafter, preferably 1mm or more and 4mm or less.

Absorbent commodities of 16 ＞ of ＜ as described in any one of 15 ＞ of ＜ 8 ＞ to ＜, wherein removing for above-mentioned absorber is above-mentioned In this other than middle high portion thickness of peripheral part (above-mentioned standard absorption portion) in high portion be 0.3mm or more and 3mm hereinafter, it is preferred that For 0.5mm or more and 2.5mm or less.

17 ＞ of ＜

Absorbent commodity as described in any one of 16 ＞ of ＜ 1 ＞ to ＜, wherein more being leaned in more above-mentioned rear gap zone Longitudinal rear is formed through the rear fold line for folding above-mentioned absorbent commodity and being formed.

18 ＞ of ＜

Absorbent commodity as described in any one of 17 ＞ of ＜ 1 ＞ to ＜, wherein in above-mentioned rear part, as above-mentioned front Piece and above-mentioned absorber linear slot made of being integrally recessed towards the skin opposite side with wearer, have：Outer groove is formed The convex protruded when looking down towards the longitudinally aft end of above-mentioned absorbent commodity；And inside groove, it is located at the area surrounded by the outer groove Domain, and form the convex protruded towards the longitudinally aft end of the absorbent commodity；The outer groove or the inside groove and above-mentioned rear slot weight It is folded.

19 ＞ of ＜

Absorbent commodity as described in any one of 18 ＞ of ＜ 1 ＞ to ＜, between the above-mentioned rear gap zone of one pair of which It is divided into 10mm or more and 40mm between the most narrow part in interval in the horizontal hereinafter, preferably 20mm or more and 30mm or less.

20 ＞ of ＜

Absorbent commodity as described in any one of 19 ＞ of ＜ 1 ＞ to ＜, wherein above-mentioned central fold line and above-mentioned rear 10mm or more is divided between gap zone and 40mm hereinafter, preferably 15mm or more and 35mm or less.

21 ＞ of ＜

Absorbent commodity as described in any one of 20 ＞ of ＜ 1 ＞ to ＜, wherein longitudinal length of above-mentioned rear slot For 10mm or more and 35mm hereinafter, preferably 15mm or more and 25mm or less.

22 ＞ of ＜

Absorbent commodity as described in any one of 21 ＞ of ＜ 1 ＞ to ＜, wherein the lateral length of above-mentioned rear slot For 0.1mm or more and 1mm hereinafter, preferably 0.2mm or more and 0.8mm or less.

23 ＞ of ＜

Absorbent commodity as described in any one of 22 ＞ of ＜ 1 ＞ to ＜, wherein matching in the dispersion of above-mentioned rear gap zone Multiple above-mentioned rear slots are equipped with, there are multiple rear slot multiple rear slots to be configured in the longitudinal direction made of a row Longitudinal slot arranges, and 10mm or more is divided into and 35mm hereinafter, preferably between the longitudinal direction of the rear slot in longitudinal direction slot row 15mm or more and 25mm or less.

24 ＞ of ＜

Absorbent commodity as described in any one of 23 ＞ of ＜ 1 ＞ to ＜, wherein matching in the dispersion of above-mentioned rear gap zone Be equipped with multiple above-mentioned rear slots, multiple rear slot have multiple rear slots configure in the horizontal it is in a row made of Lateral slot is arranged, and is divided into 5mm or more and 25mm between the lateral Y of the rear slot in transverse direction slot row hereinafter, preferably 10mm or more and 20mm or less.

Absorbent commodities of 25 ＞ of ＜ as described in any one of 24 ＞ of ＜ 1 ＞ to ＜, wherein the vertical view of above-mentioned rear slot Shape is straight line, wave, curve or dotted line.

26 ＞ of ＜

Absorbent commodity as described in any one of 25 ＞ of ＜ 1 ＞ to ＜, wherein above-mentioned rear slot and above-mentioned imagination are vertical To center line angulation less than 45 degree, preferably less than 30 degree, and then preferably less than 10 degree.

27 ＞ of ＜

Absorbent commodity as described in any one of 26 ＞ of ＜ 1 ＞ to ＜, wherein above-mentioned rear slot is along being longitudinally extended.

28 ＞ of ＜

Absorbent commodity as described in any one of 26 ＞ of ＜ 1 ＞ to ＜, wherein in a pair of above-mentioned rear gap zone point It is not distributed multiple above-mentioned rear slots, multiple rear slot has preferably 2 row above and then preferred in the horizontal It is arranged for above longitudinal slot that is configured to the rear slot in the longitudinal direction made of one row of 3 row.

29 ＞ of ＜

Absorbent commodity as described in 28 ＞ of ＜, wherein above-mentioned rear slot included in each above-mentioned longitudinal slot row It is 1 or more, preferably 2 or more.

30 ＞ of ＜

Absorbent commodity as described in any one of 29 ＞ of ＜ 1 ＞ to ＜, wherein transverse direction when overlooking above-mentioned rear slot Length be 0.1mm or more and 1mm hereinafter, preferably 0.2mm or more and 0.8mm or less.

31 ＞ of ＜

Absorbent commodity as described in any one of 30 ＞ of ＜ 1 ＞ to ＜, wherein above-mentioned absorber is to utilize absorbent sheet The multilayered structure of formation.

32 ＞ of ＜

Absorbent commodity as described in 31 ＞ of ＜, wherein above-mentioned multilayered structure is that multiple above-mentioned absorbent sheets is made to be overlapped and shape At structure, or 1 absorbent sheet is folded and the structure that is formed.

33 ＞ of ＜

Absorbent commodity as described in any one of 32 ＞ of ＜ 1 ＞ to ＜, wherein above-mentioned absorbent commodity is physiology with defending Raw towel.

Embodiment

Hereinafter, the absorbent commodity of the present invention is explained in more detail by embodiment.However, the scope of the present invention not by The embodiment any restrictions.

[embodiment 1]

Making has the sanitary napkin constituted substantially identical with Fig. 1~sanitary napkin shown in Fig. 3, by it It is set as the sample of embodiment 1.The absorber absorber 4 as shown in fig. 4 of the made sanitary napkin is identical, in a pair Rear gap zone RSr, RSl is each configured with each 4 of rear slot.As positive dough sheet, grammes per square metre 25g/m is used²Spunbond without Woven fabric.As back sheet, grammes per square metre 35g/m is used²Penetrability resin film.As leakage-proof turnup formation piece, grammes per square metre is used 25g/m²Spun-bonded non-woven fabrics.As the absorbent sheet for constituting absorber, using according to No. 2963647 bulletins of Japanese Patent No. Embodiment 2 and the absorbent sheet made, the average each absorbent sheet is in 5cN/cm²Load under thickness be 0.5mm.It absorbs High portion is in 5cN/cm in body²Load under thickness be 2.3mm, the transverse width of the rear end in middle high portion is 35mm.Wherein, High portion is rectangle when looking down in absorber.

Details as Follows (with reference to Fig. 4) for the slot for being configured at absorber of the sanitary napkin of embodiment 1.

About each of a pair of of rear gap zone RSr, RSl, the length L1 of longitudinal X of rear slot R1 is 20mm, after The width b1 of square slot R1 is 0.5mm, the interval of the mutual closest mutual longitudinal direction X of rear slot R1, R1 on longitudinal X D3 is 20mm, and the mutually interval d4 of the closest mutual transverse direction Y of rear slot R1, R1 is 14mm in the lateral direction y.In addition, The interval d1 of the most narrow part in interval between a pair of of rear gap zone RSr, RSl in the lateral direction y is 24mm.

About central gap zone MS, the length L2 of longitudinal X of central slot M1 is 20mm, the width b2 of central slot M1 For 0.5mm, the interval d5 of the mutual closest mutual longitudinal direction X of central slot M1, M1 is 20mm on longitudinal X, in lateral Y The upper mutually interval d6 of the closest mutual transverse direction Y of central slot M1, M1 is 12mm.

The interval d2 of the rear end of central fold line CFL and the rear slot R1 positioned at the forefront of longitudinal direction X are 20mm.

[comparative example 1]

Make except replace absorber 4 shown in Fig. 4 and use without rear slot absorber in addition to 1 phase of embodiment The sanitary napkin of same composition, and it is set to the sample of comparative example 1.

[evaluation]

For the sample (sanitary napkin) of each embodiment and comparative example, by following methods measure the diffusion of body fluid away from From measurement.It the results are shown in following table 1.

The assay method ＞ of the diffusion length of ＜ body fluid

Using can from the point of release inject liquid the lower part of the body for women manikin, make the model with upright state After wearing the sample of evaluation object, it is the state lain down of facing upward to make the model.Then, the liquid of function is adjusted using tool speed Discharge pump injects 3g horse blood from the point of release every 1 minute, adds up to injection 6g.After rigid injection 6g after 1 minute, from this Model removes sample, to horse blood by injection sample generate in the vertical of positive dough sheet and the respective skin opposite face of absorber To diffusion length carry out 3 times measurement, respectively about positive dough sheet and absorber calculate this 3 times measurement average values, as front The diffusion length of body fluid in piece or absorber.Think in any one of positive dough sheet and absorber, the diffusion of the body fluid away from From shorter, gap is more not likely to produce between sanitary napkin and the skin of wearer, body fluid is more not easy to flow along skin, And it has higher rating.Wherein, using de- fiber horse blood (manufacture of Nippon Biotest Co., Ltd.) as false blood.

[table 1]

As shown in table 1, the sanitary napkin of embodiment is compared with the sanitary napkin of comparative example, the body in positive dough sheet The diffusion length of liquid and the diffusion length of the body fluid in absorber are smaller.Accordingly, with the sanitary napkin phase of comparative example Than the sanitary napkin of embodiment can be expected to be not likely to produce gap between skin in dress, conformable raising, and body Liquid is not easy to flow along skin, and anti-leakage improves.

Industrial availability

According to the present invention, a kind of absorbent commodity that can be effectively prevented liquid leakage is provided.

Claims

1. a kind of absorbent commodity has the longitudinal direction in the front-back direction corresponding to wearer and orthogonal to that transverse direction, and wraps Liquid retainability absorber and positive dough sheet of the skin with respect to surface side for being configured at the absorber are included, the feature of the absorbent commodity exists In：

The absorbent commodity is divided into the 1st longitudinally forward using 1 fold line formed by being folded as boundary 2nd region in region and rear,

1st region includes：Middle part, it includes the parts opposite with the excretory portion of wearer when wearing；And front part, It is leaned on longitudinally forward compared with the middle part, and the 2nd region includes the rear part that longitudinal rear is leaned on compared with the middle part,

The absorber in the 2nd region is indulged across the imagination extended in the longitudinal direction with halving the absorber in the horizontal To center line, there is a pair of rear gap zone configured with the rear slot extended in the longitudinal direction in its both sides.

2. absorbent commodity as described in claim 1, it is characterised in that：

The absorber has the central slot for being distributed multiple central slots extended in the longitudinal direction in the middle part Longitudinal front end in region, the rear gap zone is located at the longitudinally aft end with the center gap zone described longitudinally spaced The position of 20mm or more.

3. absorbent commodity as claimed in claim 2, it is characterised in that：

Longitudinal length of the center slot is 10mm or more and 35mm or less.

4. absorbent commodity as claimed in claim 2 or claim 3, it is characterised in that：

The lateral length of the center slot is 0.1mm or more and 1mm or less.

5. the absorbent commodity as described in any one of claim 2~4, it is characterised in that：

In the central gap zone, multiple central slots are configured to made of a row in the longitudinal direction in longitudinal slot row The center slot it is longitudinal between be divided into 10mm or more and 35mm or less.

6. the absorbent commodity as described in any one of claim 2~5, it is characterised in that：

In the central gap zone, multiple central slots configure in the horizontal it is in a row made of in lateral slot row The center slot it is lateral between be divided into 5mm or more and 25mm or less.

7. the absorbent commodity as described in any one of claim 2~6, it is characterised in that：

The interval of the most narrow part in interval between a pair of rear gap zone in the horizontal is relative in the central gap The ratio for stitching the interval of the adjacent in the horizontal 2 central slots each other in the horizontal in region, by the former/the latter in terms of, It is 1.1 or more and 3 or less.

8. the absorbent commodity as described in any one of claim 2~7, it is characterised in that：

The absorber has thickness big compared with peripheral portion and is swelled towards skin with respect to surface side in the lateral center portion of the middle part In high portion, it is described center gap zone be present in high portion in this.

9. absorbent commodity as claimed in claim 8, it is characterised in that：

The interval of the most narrow part in interval between a pair of rear gap zone in the horizontal is wider than in the central slot The interval of adjacent in the horizontal the 2 central slots each other in the horizontal in region, and be wider than the middle high portion in cross The lateral length in 1 region of the lateral center in the case of upward 5 decile.

10. absorbent commodity as claimed in claim 8 or 9, it is characterised in that：

The interval of the most narrow part in interval between a pair of rear gap zone in the horizontal with by the middle high portion in cross The ratio of the lateral length in 1 region of the lateral center in the case of upward 5 decile, by the former/the latter in terms of, be 1.5 or more And 6 or less.

11. the absorbent commodity as described in any one of claim 8~10, it is characterised in that：

A part for multiple central slots of the center gap zone not with the folding line overlap, and in the longitudinal direction across The longitudinally aft end in the middle high portion.

12. the absorbent commodity as described in any one of claim 8~11, it is characterised in that：

Longitudinal length in the middle high portion is 60mm or more and 150mm or less.

13. the absorbent commodity as described in any one of claim 8~12, it is characterised in that：

The lateral length in the middle high portion is 25mm or more and 55mm or less.

14. the absorbent commodity as described in any one of claim 8~13, it is characterised in that：

The absorber is by the central absorbent piece that is formed using absorbent sheet in the middle part and covers the central absorbent The absorbent body piece of piece is constituted, which is configured at the middle high portion.

15. the absorbent commodity as described in any one of claim 8~14, it is characterised in that：

The thickness in the middle high portion of the absorber is 0.7mm or more and 5mm or less.

16. the absorbent commodity as described in any one of claim 8~15, it is characterised in that：

In this in addition to the middle high portion of the absorber thickness of the peripheral part in high portion be 0.3mm or more and 3mm with Under.

17. the absorbent commodity as described in any one of claim 1~16, it is characterised in that：

More lean on longitudinal rear in the rear gap zone, be formed through the absorbent commodity is folded and after being formed Square fold line.

18. the absorbent commodity as described in any one of claim 1~17, it is characterised in that：

Portion of side in the rear is integrally recessed as the positive dough sheet and the absorber towards the skin opposite side with wearer Made of linear slot, have：Outer groove forms the convex protruded when looking down towards the longitudinally aft end of the absorbent commodity； And inside groove, it is located at the region surrounded by the outer groove, and form the convex protruded towards the longitudinally aft end of the absorbent commodity, it should Outer groove or the inside groove are Chong Die with the rear slot.

19. the absorbent commodity as described in any one of claim 1~18, it is characterised in that：

Be divided into 10mm or more between the most narrow part in interval between a pair of rear gap zone in the horizontal and 40mm with Under.

20. the absorbent commodity as described in any one of claim 1~19, it is characterised in that：

It is divided into 10mm or more and 40mm or less between the central fold line and the rear gap zone.

21. the absorbent commodity as described in any one of claim 1~20, it is characterised in that：

Longitudinal length of the rear slot is 10mm or more and 35mm or less.

22. the absorbent commodity as described in any one of claim 1~21, it is characterised in that：

The lateral length of the rear slot is 0.1mm or more and 1mm or less.

23. the absorbent commodity as described in any one of claim 1~22, it is characterised in that：

Square gap zone has been distributed multiple rear slots in the rear, and multiple rear slot has multiple rears Slot is configured to made of a row longitudinal slot row in the longitudinal direction, longitudinal interval of the rear slot in the longitudinal direction slot row For 10mm or more and 35mm or less.

24. the absorbent commodity as described in any one of claim 1~23, it is characterised in that：

Square gap zone has been distributed multiple rear slots in the rear, and multiple rear slot has multiple rears Slot configure in the horizontal it is in a row made of lateral slot row, the transverse direction slot arrange in the rear slot lateral Y between It is divided into 5mm or more and 25mm or less.

25. the absorbent commodity as described in any one of claim 1~24, it is characterised in that：

The plan view shape of the rear slot is straight line, wave, curve or dotted line.

26. the absorbent commodity as described in any one of claim 1~25, it is characterised in that：

The rear slot is less than 45 degree with the imaginary longitudinal centre line angulation.

27. the absorbent commodity as described in any one of claim 1~26, it is characterised in that：

The rear slot is along being longitudinally extended.

28. the absorbent commodity as described in any one of claim 1~26, it is characterised in that：

It is distributed multiple rear slots respectively in a pair of rear gap zone, multiple rear slot is in transverse direction Above arranged with above longitudinal slot that is configured to the rear slot in the longitudinal direction made of one row of 2 row.

29. absorbent commodity as claimed in claim 28, it is characterised in that：

The rear slot is 1 or more included in each longitudinal slot row.

30. the absorbent commodity as described in any one of claim 1~29, it is characterised in that：

Lateral length when overlooking the rear slot is 0.1mm or more and 1mm or less.

31. the absorbent commodity as described in any one of claims 1 to 30, it is characterised in that：

The absorber is the multilayered structure formed using absorbent sheet.

32. absorbent commodity as claimed in claim 31, it is characterised in that：

The multilayered structure is the structure for making multiple absorbent sheet overlappings and being formed, or 1 absorbent sheet is folded and shape At structure.

33. the absorbent commodity as described in any one of claim of right1~32, it is characterised in that：

The absorbent commodity is sanitary napkin.