CN101732136B - Single package of absorbent article - Google Patents

Abstract

The present invention provides a single package of an absorbent article, wherein, an absorber (1) is provided with a front middle-high absorbing part (1a) and a back middle-high absorbing part (1b) which are formed through projecting to the side of a surface that contacts with the skin. A rigid area (9) is provided on the absorber part between two middle-high absorbing part. The rigid area (9) is configured to an area which comprises a dent part (19) which is formed through compressing and jointing a front sheet material (2) and the absorber (1). Furthermore, when a line which penetrates the rigid area (9) is drawn along the width direction, a random part of the dent part (19) surely exists on the line (k1). The absorbent article (10) is folded while the position of the rigid area (9) is used as the folding position. Additionally, the present invention provides a single package of an absorbent article, wherein, an absorber (1) is provided with a front middle-high absorbing part (1a) and a back middle-high absorbing part (1b) which projects to the skin side of a wearer. The two middle-high absorbing parts are separately configured to a front belly side and a back side of the wearer while separated by a separation area (r). The absorbent article (10) is folded at a bending position (k1) of the separation area (r). At the folding state, the whole body or one part of the back middle-high absorbing part (1b) is accommodated in the separation area (r).

Description

The individual package of absorbent commodity

Technical field

The individual package of the absorbent commodity that the present invention relates to the absorbent commodities such as sanitary napkin to pack individually and obtain.

Background technology

As the general formation of the absorbent commodity such as sanitary napkin or incontinence pad, there is the structure that sandwiches absorber between face sheet and back-sheet.In recent years, in order to improve close property and the anti-leakage etc. of these absorbent commodities to health, develop at the width central part of article and made absorber bulk from hypogastric region side to buttocks, thereby made the product of this part towards the skin face one side protuberance of wearer.

For example, following sanitary napkin is disclosed in TOHKEMY 2000-189456 communique: middle high bump is turned up the soil and is formed as the position contacting with the excretory portion of user and the Zhe Liangge position, position contacting with the buttocks of user, the part between these protrusions is arranged to the flexible region that flexural rigidity is low.

In addition, a kind of absorbent commodity with high portion in the absorber that is divided into front veutro and these two positions of rear dorsal part is disclosed in TOHKEMY 2006-239162 communique.This absorbent commodity is by making absorber towards the side-prominent fit that improves of skin, thereby can suppress the seepage of drained liquid etc., makes the distortion of high portion in be difficult for affecting high portion in another by middle high portion being divided into two.

But the absorbent commodity before use builds up for example three foldings because of the keeping of considering wholesomeness conventionally together with sheet for packaging with Portability, make the individual package of indivedual packagings.Possessing in the article of the absorber as described above with middle high portion, if for example form protrusion on whole length direction,, in the time that in order to make individual packaging goods, face is folding successively along its length, likely deformation concentrates on this crease position and makes it that drastic deformation occur.If while using by its Kaifeng expansion, likely leave the folding line of unplessantness displeasure causing while wearing, or this part becomes and can not be close to skin and cause leakage.For be provided with the product of holding up rivel in the both sides of absorbent commodity, because the above-mentioned folding above-mentioned rivel portion that also can make produces deformation, result also can be damaged anti-leakage.

In addition, carry out above-mentioned there is absorber in when indivedual packaging of absorbent commodity of high portion, if be for example arranged to the state of three foldings, each is overlapping in the mode connecting in the outstanding part of the central authorities of absorber.Like this, the local thickening in this overlapping position, becomes the bulky individual package that central authorities bloat.Therefore, can produce the inconvenience of carrying while going out, or the destroyed and absorbent commodity that deforms of the state connecting while carrying, absorbability and dress comfort variation, or can be out of shape in the time making the packaging of peddling when circulation, be difficult to individual package to be combined and to carry out secondary package.

Summary of the invention

The present invention in view of the above problems, the 1st problem is to provide a kind of individual package of absorbent commodity, it can fold compactly, the folding line that can suppress to stay in the time being opened the rear expansion of bag, and the rivel shape of holding up of sidepiece is also difficult for collapsing flat, can maintain well the three-dimensional shape of absorber and surrounding member thereof.

And then, the 2nd problem of the present invention is to provide a kind of individual package of absorbent commodity, it improves and close property and the anti-leakage of health by become the protuberance of middle high portion on absorber, and can suppress part packing individually when folding absorbent article and become blocked up.

The 1st above-mentioned problem realizes by the individual package of following absorbent commodity, the individual package of described absorbent commodity will be absorbent commodity folding obtaining together with packaging material of elongate shape along the fore-and-aft direction of wearer, described absorbent commodity has the face sheet being positioned at surface one side of skin contact, not and the back-sheet of surface one side of skin contact and the absorber between above-mentioned two sheet materials, wherein, on described absorber, have towards high absorbent portion in high absorbent portion in the front forming with the surface one side protuberance of skin contact and rear, in absorber part in described two between high absorbent portion, be provided with rigid region, this rigid region is constituted as the region of containing depressed part, described depressed part is by forming described face sheet and described absorber compression engagement, and, in the time running through the line of described rigid region along standardized of width, must there is arbitrary part of described depressed part to be present on described line, described absorbent commodity is fold as folding position taking the position of described rigid region (following, the individual package of this absorbent commodity is called to the first embodiment of the present invention).

In addition, the 2nd above-mentioned problem realizes by the individual package of following absorbent commodity, the individual package of described absorbent commodity folds absorbent commodity and obtains together with packaging material, described absorbent commodity has face sheet, back-sheet and the absorber between above-mentioned two sheet materials, wherein, on described absorber, have towards high absorbent portion in high absorbent portion in the front of the skin side protuberance of wearer and rear, in described two, high absorbent portion is disposed at front veutro and the rear dorsal part of wearer dividually across separated region, described absorbent commodity is folded towards the protuberance direction of described two high absorbent portions at the crooked place place that is arranged in described separated region, under this folded state, in described rear, at least a portion of high absorbent portion is contained in described separated region (following, the individual package of this absorbent commodity is called to the second embodiment of the present invention).

For the individual package of the absorbent commodity of first embodiment of the invention, in the time that the absorbent commodity of the folded state packaging with compact is opened to bag, be difficult for staying folding line, and hold up rivel shape and be difficult for collapsing flat, can keep well the three-dimensional shape of the surrounding member of folding position.

In addition, for the individual package of the absorbent commodity of second embodiment of the invention, because its absorbent commodity has high portion in absorber, so fit is high, effectively absorbing and excreting liquid etc., the not easy to leak such as the liquid once being absorbed, can realize comfortable wearing feeling.And, while packaging individually by folding, can suppress part and become blocked up, thereby keeping property and Portability are good.

Brief description of the drawings

Fig. 1 schematically represents to open the axonometric chart of the state after bag as this sanitary napkin of the preferred example (example 1-1) of the individual package of first embodiment of the invention.

Fig. 2 is the amplification profile along the II-II line of Fig. 1.

Fig. 3 is the amplification profile of holding up rivel along the III-III line of Fig. 1.

Fig. 4 is by the top view of wanting cage structure further to schematically show of the sanitary napkin shown in Fig. 1.

Fig. 5 is the schematic diagram of the form folded for the sanitary napkin shown in key diagram 4.

Fig. 6 is by the top view of wanting cage structure to schematically show for sanitary napkin relatively.

Fig. 7 is the schematic diagram of the form folded for the sanitary napkin shown in key diagram 6.

Fig. 8 is the top view of its that see from its face sheet side as this sanitary napkin of another preferred example (example 1-2) of the individual package of first embodiment of the invention being opened to the state bag.

Fig. 9 is the schematic diagram of the section of holding up rivel (leakproof wall) of each portion of the sanitary napkin of presentation graphs 8, Fig. 9 (a) is the XI-XI line profile of Fig. 8, Fig. 9 (b) is the XII-XII line profile of Fig. 8, and Fig. 9 (c) is the XIII-XIII line profile of Fig. 8.

Figure 10 is the axonometric chart of the summary form under the naturalness of sanitary napkin of presentation graphs 8.

Figure 11 is the pattern figure that represents an example of the embossed pattern of the rigid region that becomes this example 1-1 and 1-2.

Figure 12 is the pattern figure that represents to become as the change of shape of the embossed portion of the rigid region of another preferred example of first embodiment of the invention.

Figure 13 is the axonometric chart that form that the sanitary napkin of this example 1-1 is folded together with package sheet material represents according to this order.

Figure 14 is that the part that schematically represents the individual package of the sanitary napkin of this example 1-1 is cut axonometric chart.

Figure 15 is the disrumpent feelings axonometric chart in part of the individual package (example 2-1) that schematically represents the sanitary napkin of the preferred example of second embodiment of the invention.

Figure 16 is the disrumpent feelings axonometric chart in part of the absorbent commodity (sanitary napkin) when schematically representing the unwrapp of the individual package shown in Figure 15 and extending.

Figure 17-1st, represents the profile of the IV-IV line section in Figure 16.

Figure 17-2nd, the profile of the state when sanitary napkin shown in presentation graphs 17-1 is folded.

Figure 18 is the profile schematically representing after the periphery of the depressed part in Figure 17-1 is amplified.

Figure 19 be the absorber that schematically represents the sanitary napkin in example 2-1 with and on the top view of position relationship of the depressed part that arranges.

Figure 20-1st, schematically represents the profile of the sanitary napkin in another preferred example (example 2-2) of second embodiment of the invention.

Figure 20-2nd, the profile of state when schematically the absorber shown in presentation graphs 20-1 is by individual packaging.

Figure 21 be the absorber that schematically represents the sanitary napkin in another preferred example (example 2-3) of second embodiment of the invention with and the top view of collapsed shape.

Figure 22 is the key diagram that schematically represents the variation of the sanitary napkin in second embodiment of the invention, Figure 22 (a) is the top view of sanitary napkin, Figure 22 (b) is the profile of the B-B line section of Figure 22 (a), and Figure 22 (c) is the top view that represents another variation of depressed part.

Symbol description

High absorbent portion in 1 absorber 1a front

High absorbent portion 1c lower floor absorber in 1b rear

2 face sheet 3 back-sheet

4 side sheet material 4k hold up rivel portion

41 42 elastic telescopic portions of basal wall portion

Protuberance outside protuberance 42b inside 42a

48 multilamellar portion 8 side alar parts

9 rigid region 10,20,30,40,50 absorbent commodities

11,12 point-like groove 19 embossed portion (depressed part)

19a～19e impression 25 perimeter

26 circumference embossing 27 side embossing

33 peel 34 package sheet materials

35 sealings 100,100 ' individual package

Detailed description of the invention

For the individual package of absorbent commodity of the present invention, be the individual package of sanitary napkin and opened the sanitary napkin after bag according to its preferred example, be elaborated with reference to accompanying drawing.The invention of preferred above-mentioned the first embodiment of the present invention or the second embodiment, the invention of these embodiments has identical or corresponding technical characterictic, forms one group of invention as the invention described above.Below above-mentioned the first embodiment and the second embodiment are described in detail respectively, but the present invention can not limit and be explained with these embodiments.First, the preferred example of the first embodiment of the present invention is described.

Fig. 1 schematically represents to see that from face sheet side the preferred example of first embodiment of the invention is the axonometric chart of the state the packaging of individual package (example 1-1) of absorbent commodity.In this Fig. 1, expression be to make sanitary napkin bending state slowly along its length, expression be the state that the state when dressing is opened slightly.In addition, Fig. 2 is the amplification profile along the II-II line of Fig. 1.In this sanitary napkin 10, use on the whole fibre sheet material (platform paper) coated papers pulp fibres aggregation and obtain overlook time be sandwiched between back-sheet 3 and face sheet 2 (in Fig. 1 with the rectangular absorber 1 of fillet, absorber 1 is covered and cannot see by face sheet 2, but for the ease of understanding, imagination has been removed the situation of face sheet, comes together to represent absorber 1 with absorbent portion 1a, 1b, these symbols of 1c).In addition, on the both sides of its width (Y-direction), be provided with and hold up rivel 4k towards face sheet side protuberance by what be surrounded by inside that cavity and (directions X) extends along its length side sheet material 4 form.Here, face sheet side becomes the face contacting with the skin of wearer, and back-sheet side becomes the face contacting with underwear.In addition, back-sheet 3 has been endowed cohesive and can be fixed on underwear when making to dress.In addition, in the following description, the veutro of the main reception discharged liquid of sanitary napkin 10 is set as to front portion or front, the buttocks side contrary with it is set as to rear portion or rear.

The absorber 1 being arranged in back-sheet 3 extends to rear portion from the front portion of sanitary napkin 10.In this absorber 1, dispose the absorber 1c of lower floor, be high absorbent portion 1b in high absorbent portion 1a and rear in the front being formed by the upper strata absorber 1 obtaining with fibre sheet material coated papers pulp fibres aggregation equally towards its face side protuberance.And in high absorbent portion 1a and rear, high absorbent portion 1b is covered by face sheet 2 in the absorber 1c of lower floor extending along its length and front.In addition, in front, in high absorbent portion 1a and rear, high absorbent portion 1b has separated region (width on length direction) P and is separated at the substantial middle position of absorber 1, in front, high absorbent portion 1a is corresponding to the position of excretory portion, and in rear, high absorbent portion 1b is corresponding to buttocks position.By this formation, absorbent commodity has absorber part high in two that are covered by face sheet 2 on the whole.

In the front part of the sanitary napkin 10 of this example 1-1, and be the lateral location place of high absorbent portion 1a position in corresponding to front, on the both sides of sheet material 3, be formed with overleaf the side alar part 8 extending to outside, side.The back side of side alar part 8 has been endowed binding agent, and the crotch that this side alar part 8 clips underwear in the time dressing folds into the outer surface side of underwear.And then both sides (side protuberance) 10a of back-sheet and side sheet material and length direction front and rear part 10b are more outstanding a little towards outside and formed aileron than absorber 1.Be bonded with each other with side sheet material 4 at this part place face sheet 2.By these outstanding ailerons and side alar part, dress and become easily toward the installation on underwear, can enter more effectively to prevent the particularly side leakage of seepage of liquid etc. simultaneously.

In this example 1-1, between high absorbent portion 1b, form rigid region 9 described later in high absorbent portion 1a and rear in forwardly.As shown in Figure 2, near the front and back of this rigid region 9, part 13 becomes high absorbent portion (1a, 1b) in the front that bulges into convex being made up of upper strata absorber and rear and the part of the absorber 1c of Jin You lower floor, and the flexural rigidity of rigid region 9 is than its absorber 1 (near part 13 rigid region) height around.By such setting, in this example 1, at the folding position of this rigid region part k ₁when place is folding by the front and rear part of absorbent commodity 10, this folding position is difficult for becoming and has formed the crease of wire or the state of a large amount of gauffers, but the form of the width that becomes to specify bending.Therefore,, while opening folding absorbent commodity 10, can not stay and cause the gauffer of unplessantness displeasure or dark folding line.

In addition, in the present invention, the assay method of flexural rigidity is not particularly limited, and unless otherwise specified, is following assay method.Be in 23 DEG C, the humidity test chamber that is 50% in temperature, use Dae Young Co., Ltd.'s science essence device of the firm soft algoscopy that is suitable for JIS L1096 (general fabrics test method) defined to make made Handle-O-Meter tester.Be adjusted into horizontal arrangement test film on the sample bench of 30mm between by slit, make the mensuration position of this test film be positioned at slit Jian center and make along the length of this test film of absorber length direction consistent with the direction perpendicular to slit.Test film is not fixed on sample bench.The blade that makes to be adjusted into the position (upper/lower positions) that can drop to from the surface of sample bench below 8mm declines with constant speed 200mm/min from the top of test film.Then, read in the shown peak (cN) of indicator (load gauge) while pressing this test film before and after length direction.Carry out 5 times and measure, calculate its meansigma methods as values of stiffness.

In the sanitary napkin of this example 1-1, along the both sides of high absorbent portion 1b in high absorbent portion 1a in front and rear, and along the width both sides of rigid region 9, on face sheet 2, be formed with the depression of point-like or continuous groove 11.Make thus face sheet 2 be firmly fixed at absorber 1, can prevent the dislocation of face sheet with respect to high absorbent portion in front and rear.In this example 1-1, near the front end S of the groove 11 that the embossing of point-like forms continuously with high absorbent portion 1a in front, surround the mode of high absorbent portion in this front and extend, until be formed as agley circular-arc near the rear end of the absorber 1 at the length direction rear of absorbent commodity 10.And then, in the wings near of rear end T of high absorbent portion 1b formed and surrounded the groove 12 that the point-like embossing of high absorbent portion 1b in this rear forms continuously.These grooves 11,12 can form by the heat embossing processing from face sheet 2 to absorber 1.In addition, the continuous embossing (not shown) of formation rigid region can be also that the wire of broad ways extension or the groove of point-like have the situation of many in the longitudinal direction off and on.

As shown in Figure 1, at the front side of the sanitary napkin 10 of this example 1-1, taking near the groove location 11 front end S of high absorbent portion 1a in front as folding position k ₃, by its front side according to folding with the overlapping mode of the face side of absorbent commodity 10.And, at rigid region 9, taking its substantial distance direction centre position as folding position k ₁by folding sanitary napkin 10.In addition, at article rear side, taking the position that surrounds near the groove 12 rear end T of high absorbent portion 1b in rear as folding position k ₂its rear side is folding.Like this, the sanitary napkin 10 of this example 1-1 is folded and become individual package in the position of these three broken lines, but the more detailed situations such as this invagination order are described in the back.

Fig. 3 is the profile of the III-III line section shown in presentation graphs 1 schematically.Its both sides of bag in being provided with in its surface on the sanitary napkin 10 of this example 1-1 and swell and formed by side sheet material 4 hold up rivel 4k.As shown in Figure 3, side sheet material 4 becomes the outside sheet material 14 of mutual stickup and the double-layer structure that inner side sheet material 15 forms.Under the state that side sheet material 4 has extended in sanitary napkin main body (face sheet, back-sheet and absorber), be loosely disposed at its sidepiece, on the other hand, inner elastic component arranges with elongation state.Become as shown in Figure 1 the case of bending towards face sheet side depression while dressing by the sanitary napkin that makes so to form, hold up rivel 4k and swell on the surface of absorber 1, from width directional profile see be formed as circular-arc.Holding up on rivel 4k of protuberance, between lateral film material 14 and inner side sheet material 15, sandwich many thin elastic cords 16 that extend along its length, guarantee to hold up the erected state of rivel 4k by its contractility, simultaneously to keep showing the drum of comfort cushioning along the tunnel-like of article length direction.

A base end part 17 along its length of side sheet material 4 is fixed on the face sheet 2 of side upper surface side of absorber 1, another base end part 18 be fixed on away from the side of absorber 1 back-sheet 3 on the outstanding 3a of aileron portion in side.By this formation, form the 1st blank part Q extending in the inside of side sheet material 4 on the surface of absorber 1 ₁, and with the 1st blank part Q ₁the 2nd blank part Q that is communicated with and extends in the side of absorber 1 ₂.Hold up rivel structure by this distinctive tubular, can improve the fit sense while wearing, and can play the high drip-preventing function to side, from but preferred.

Below, with reference to Fig. 4 that the sanitary napkin of this example 1-1 is further schematically shown, Fig. 5 (a)～(c) and represent for Fig. 6, Fig. 7 (a) of example relatively and (b), the folding form of the rigid region part in the present invention described.

First, as shown in Fig. 4 and Fig. 5 (a), in this example 1-1, forwardly, in high absorbent portion 1a and rear, between high absorbent portion 1b, be formed with the depressed part 19 of the crescent shape (lunate shape) that the integral width on length direction (directions X) is w, formed thus the flexible rigid region 9 lower than the other parts of absorber 1." rigid region " in the present invention embossing part that not only clinodactyly rigidity has been enhanced, also refer to the shape effect when overlooking, can obtain the scope for the effect of the folding crease that has suppressed to form high rigidization of face.Now, run through the line k of above-mentioned rigid region 9 when standardized of broad ways ₁time, must there is arbitrary part of above-mentioned depressed part 19 to be present in above-mentioned line k ₁on.Particularly, substantially refer to along item width direction (Y-direction) and length direction (directions X) see high rigidization part and be projected when projection and look like divided region.In this example 1-1, with respect to the embossed portion of crescent shape, become rigid region 9 (with reference to Fig. 4) with the region (rectangular area) that the chain-dotted line of article central authorities is divided.

The formation method that becomes the depressed part (embossed portion) 19 of rigid region 9 is not particularly limited, for example, can form by following heat embossing method.Even with possessing the heat embossing device on periphery with the backing roll configuring in opposite directions corresponding to the knurling rolls of the convex strip portions of the shape of indentation unit with the periphery of knurling rolls.By absorber and face sheet according to face sheet side is inserted between two rollers in the mode of knurling rolls side.Then, form by they being heated integratedly with pressurization the indentation unit that caves in into concavity.In addition, beyond heat extraction embossing, can also form by ultrasonic wave embossed method etc.Embossed portion can also be arranged to other various shapes except above-mentioned, and this is further described in the back.

When in the time thering is so to a certain degree the part place folding absorbent article 10 of rigid region 9 of larger length direction width w, the part of rigid region 9 can not be bent into wire, as shown in Fig. 5 (b), rigid region 9 with form bending planar or slowly bending, is difficult for the acutangulate crease of shape at folded part.The deformation ε of the absorber inside thus, can make to bend time is difficult for concentrating on folding position.Therefore after holding in use bag, can on absorber 1, not leave irregular or dark folding line yet, from but preferred.In addition, the tubular of side hold up rivel 4k also as shown in Fig. 5 (c), the drum of protrusion can not collapse flat, can guarantee empty state.

Contrast with it, in the high absorbent portion 1a forwardly as illustrating for form relatively and rear, between high absorbent portion 1b, do not form rigid region, as shown in Fig. 7 (a), in the time of bending, folding position is easily converted into acute angle with wire, or easily becomes the form that produces the crease of gauffer shape at its periphery.Therefore, deformation ε concentrates on bending part from both sides, easily on the folding position of absorber central part 21 (with reference to Fig. 6), leaves the dark folding line of gauffer shape or recess while opening.In addition, the tubular of side is holded up rivel 4k deformation 22 also can be occurred in folding position sometimes, and as shown in Fig. 7 (b), blank part becomes part and collapses flat shape and can not guarantee original shape.

Below, the state before the packaging of the individual package of the absorbent commodity to another the preferred example as first embodiment of the invention (example 1-2), describes with reference to Fig. 8～Figure 10.For the sanitary napkin 20 of this example 1-2, just the point different from the sanitary napkin 10 of above-mentioned example 1-1 describes, and description thereof is omitted for identical point.For not specified point, can suitably be suitable for the explanation to above-mentioned sanitary napkin 10.

Sanitary napkin 20 has the position excretory portion opposing part A that configures in opposite directions with the fluid drainage portion of wearer while wearing on its length direction, be configured in while dressing than excretory portion opposing part A more by the rear quadrate part B of the dorsal part (rear) of wearer and form respectively the leading section of sanitary towel 20 and the leading section C of rearward end and rearward end D.Excretory portion opposing part A in this example and the border of rear quadrate part B are positioned at the substantial middle portion of the length direction of sanitary towel 20.The rear quadrate part B of sanitary towel 20 is apart from position more than above, the preferred 3cm of alar part base end part 81 (with reference to Fig. 8) 2cm of sanitary towel's rear end side.

Rivel (leakproof wall) 4k that holds up in this example 1-2 extends on direction both sides, the broadband of sanitary towel 20, on excretory portion opposing part A, as shown in Fig. 9 (a), the elastic telescopic portion 42 being made up of inner side protuberance 42a and outside protuberance 42b is formed as section T word shape on the R of the upper end of basal wall portion 41., this leakproof wall 4k has following shape: from the free end edge 44 that absorbs the side basal wall portion 41 of holding up with perpendicular towards having loaded elastic telescopic portion 42.The outstanding width of inner side protuberance 42a and outside protuberance 42b can be the same or different, but in the example shown in Fig. 9 (a), be different, and the ratio of the outstanding width of inner side protuberance 42a and the outstanding width of outside protuberance 42b (the former: the latter) be 3: 2～5: 1 left and right.On two protuberance 42a, 42b, be equipped with the elastic component 16 of wire separately spaced apartly.A pair of hold up rivel 4k, 4k form along the dual-side of the length direction of the absorbed layer E being made up of face sheet 2 and absorber 1.The rivel 4k that holds up in this example 1-2 is that other member of formation (face sheet 2 or back-sheet 3 etc.) by elastic telescopic member 43 being fixed on as shown in Fig. 9 (a)～(c) to sanitary towel 20 forms.In addition, for Fig. 9 (a)～(c), for the ease of understanding, be hatching has been shown in Fig. 8 at the top view of the state having stretched, and in fact represent be as shown in Figure 10 with wearing state or be bordering on the state of the nature shape section when bending.

Side sheet material (basal wall portion forms the sheet material portion that uses) 4 of elastic telescopic member 43 is on the whole leading section C and rearward end D of sanitary towel 20, with near of the ora terminalis 45 of ora terminalis 44 opposition sides of elastic telescopic portion 42 sides as shown in Fig. 9 (a)～(c), lower face side at absorber 1 is fixed on by common engagement means 60 such as binding agents between the sidepiece 2a and back-sheet 3 of face sheet 2, in addition, on leading section C and rearward end D, at least the width of elastic telescopic portion 42 inner side (inner side protuberance 42a) is fixed on face sheet 2.

In this example 1-2, hold up rivel 4k as shown in Fig. 9 (b), in a part for the basal wall portion 41 of the elastic telescopic member 43 by quadrate part B after being disposed at, multilamellar portion 48 is set, thereby makes the upper end R from this basal wall portion 41 on this rear quadrate part B shorter than this distance L 1 excretory portion opposing part A (with reference to Fig. 9 (a)) to the distance L 2 (with reference to Fig. 9 (b)) of back-sheet 3 (application of anti-leakage layers F).; in this example 1-2; viewpoint from manufacturing; with the width of side sheet material 4 on whole length direction all uniformly elastic telescopic member 43 form leakproof wall; on side sheet material 4 by the B of portion in the wings, multilamellar portion 58 is set, makes the upper end R from basal wall portion on rear quadrate part B shorter than this distance L 1 excretory portion opposing part A to the distance L 2 of application of anti-leakage layers F.In addition, multilamellar portion 48 bends a part for the width of side sheet material 4 according to the mode toward each other of face of the same side that makes this sheet material portion, and by the common engagement means 60 such as bonding agent, heat seal, this face is in opposite directions engaged with each other and is formed.

Multilamellar portion 48 is formed in the whole specific length of length direction of elastic telescopic member 43.On the length direction of sanitary towel 20, the length L 3 that is formed with the part of multilamellar portion 48 be preferably hold up the part that rivel 4k holds up total length L4 (with reference to Fig. 8) 15～45%, be particularly preferably 20～30%.

In the sanitary towel 20 of this example 1-2 hold up rivel 4k be arranged to hold up height from excretory portion opposing part A to quadrate part B step-down (with reference to Fig. 9 (a), (b)) gradually, and then on the leading section C and rearward end D in length direction outside, be arranged to without the state of holding up height.This can, as shown in Fig. 9 (c), arrange the basal wall portion 41 of gapless folded state according to the mode that makes elastic telescopic portion 42 approach absorber, and is fixed on face sheet 2 and carries out.

The sanitary towel 20 of this example 1-2 for example can be by possessing following operation the manufacture method of absorbent commodity effectively manufacture: the operation of manufacturing the main body forming by absorbed layer E or by this absorbed layer E and application of anti-leakage layers F; Manufacture the operation of elastic telescopic member 43, this elastic telescopic member 43 forms with the elastic telescopic portion 42 of the setting that is connected with an end 44 of the width of this side sheet material 4 by have the side sheet material 4 of certain width on whole length direction; By this elastic telescopic member 43 in the other end 45 of side sheet material 4 or be fixed on the operation of the both sides of this main body near it; In the part that is disposed at above-mentioned rear quadrate part B of this side sheet material 4 of this elastic telescopic member 43, be formed on the operation that spreads all over the multilamellar portion 48 of specific length on the length direction of this elastic telescopic member 43; And the operation in this main body is fixed on in the both ends of the length direction of this elastic telescopic member 43.For other concrete processing, according to the common manufacture method of this kind of article, and can be with reference to TOHKEMY 2003-245306 communique together with other variation.

Section T font in this example 1-2 hold up rivel as shown in Fig. 9 (a), the elastic telescopic portion 42 of its upper end is and in opposite directions plane of skin face, so can realize the good and leakproof fluidity of skin sense of touch simultaneously.And, due in the time making individual package easily the central configuration of the sanitary towel of dark bending become the depressed part 19 of rigid region 9, so can prevent wrinklingly in the width centre of this periphery, simultaneously can prevent from becoming the member of holding up rivel 4k and collapse flat and leave excessive crease.As a result, even produce crease in the time of individual packaging, open its while using, hold up good T word shape in the holding up property fully of rivel 4k and section and also can restore, from but preferred.

By being arranged to above-mentioned example, can prevent the wrinkling of goods centre, prevent that collapsing of rivel is flat, thereby the curved shape before and after holding up the goods that rivel forms becomes more stable shape.Meanwhile, in the time that sanitary towel is fixed on medicated underpants, can also improve the particularly operability of alar part.

Below the rigid region in first embodiment of the invention is further illustrated.

Figure 11 represents an example of the embossed pattern that forms rigid region, and the relation between the length direction width w of the size to its embossing shape and rigid region describes.In this embodiment, depressed part 19 is made up of the impression 19a～19e of discontinuous rectangle, arranges discontinuously on the whole, and be formed as the crescent shape of overlooking of the bending shape that protrudes towards the rear side of this absorber on the banner direction of above-mentioned absorber.More specifically, the line extending for the width along article (Y-direction), imaginary boost line q ₁, q ₂, q ₃, when it is moved, at boost line q ₁position, impression 19a and 19e are present on line, along with towards boost line q ₂mobile, become impression 19a, 19b, 19d and 19e and be present on line.Then, at boost line q ₂position, impression 19a～19e is all present on line.Along with by it towards boost line q ₃mobile, become impression 19b～19d and be present on line, at boost line q ₃position, impression 19c is present on line.Now, can make whole depressed part 19 cave in, can be only also impression depression.Or also can be as the second embodiment (Figure 19), in depressed part, there is the shallow part of depression and the dark part of depression, thereby formed concavo-convex.

Here, the length direction width w of rigid region 9 be preferably dimensioned to be 2 times of thickness d (with reference to Fig. 2) of the absorber 1c of lower floor in thickness, i.e. this example 1-1 and the 1-2 of the rigid region absorber that does not form embossing around above (but, in Fig. 2, consider the visuality of member structural map, the absorber 1c of lower floor is schematically drawn out compared with heavy back).And then more preferably 2.5～9 times of thickness d of this width w, are particularly preferably 3～6 times.In addition, the banner 1 of rigid region is preferably more than banner (size r) in Fig. 4 that equals middle high front or rear absorbent portion 1a, 1b.In addition, the length direction width b of each impression be greater than banner a (b > a) time, can guarantee effective rigidity, from but preferred.Each impression 19a～19e is discontinuous when projection image in the time of the upper projection of the length direction (directions X) of sanitary napkin 10, but the projection image during as projection on banner direction (Y-direction), each impression of adjacency overlaps each other and forms continuously.Thus, while overlooking on the whole, become crescent shape.Form rigid region 9 by the region containing this crescent shape embossed pattern, sanitary towel is in the time of the bending of the position of this rigid region 9, can not make crease become wire, and can not make the pressure concentration of absorber in folding position part, particularly open the folding line that Shi Buhui leaves gauffer shape or recess, from but preferred.

Figure 12 is the figure that is illustrated in the shape of the various embossed patterns that form on rigid region.In addition, in this Figure 12, the part of being surrounded by solid line represents depressed part or impression as a whole, and horizontal line or oblique line represent its region.In addition, in figure, represent the evaluation result of embodiment, this has been described in the back.Pattern A shown in figure and B are the examples of the depressed part that is made up of continuous embossing.With regard to this continuous pattern, depressed part and impression meaning become identical.Pattern C～G is the example of the depressed part that formed by discontinuous wire embossing (impression)., multiple impression set and form a unified depressed part.The length of the Length Ratio banner direction of the length direction of each embossed portion is long, and is all that the neighbor of each wire embossing in the time of banner direction overlaps each other.The folded form of pattern A～G becomes the folding form of face.Contrast with it, in the embossed pattern of pattern H and I, the width of each impression is that length direction length diminishes, it is folding that folded form easily becomes line.At that point, pattern A～G is difficult for staying the folding line of absorber in the time opening, and also stabilisation more of the shape of lateral members, from but preferred.Although not shown here, the embossed portion that also can be formed by multiple these embossed patterns of combination forms rigid region.For example, also preferred compositions pattern B and reversed after pattern, be arranged to circular-arc ledge is contacted with each other and obtain overlook the embossed portion for " x " shape.

The individual package of the absorbent commodity of this example 1-1 is as described above at the folding position of absorbent commodity k ₁, k ₂, k ₃these three positions are folded and pack.Figure 13 is the figure of the example of the state in order and the folding process thereof representing when folding, and Figure 14 is folded and the axonometric chart of the individual package of state after packaging.In addition, in Figure 13, represent package sheet material 34 with double dot dash line, after in Figure 14, its part being cut, represent.On the outer surface of the back-sheet 3 of sanitary napkin 10, be attached with the package sheet material 34 of the total length that comprises back-sheet 3, when use, package sheet material 34 can be taken off simply, and take off after package sheet material 34, the bonding agent of this sheet material is stayed on the outer surface of back-sheet 3.Therefore, back-sheet 3 can be attached on underwear when use.

As shown in Figure 13 (a), the back side is there is to the part of rear side of the absorbent commodity 10 of package sheet material 34 at the broken line k shown in Fig. 1 ₂position folding towards face sheet 2 sides, then, side alar part 8 is folding towards face sheet 2 sides after, will be at broken line k ₂locate the broken line k of folding part at the center of rigid region 9 ₁place folds and the state of formation Figure 13 (b) towards equidirectional.Now, in the time having adhesive surface at the back side of side alar part 8, that position also can cover with other package sheet material.And then by this folding part 1 the broken line k at Fig. 1 ₃position folding to be overlapped in mode on the face sheet 2 of front side part.Like this, as shown in figure 14, with this package sheet material 34 after folding of sealing 35 sealing, encapsulant 33 be pasted on to its outer surface and fix, thereby can make the individual package 100 of sanitary napkin 10.

In above-mentioned, be as an example of example 1-1 example, individual packaging form to be illustrated, like this at k ₁, k ₂, k ₃place folds and makes individual packaging form is also same for the sanitary napkin of example 1-2.

In addition, in this example, be to make folding for the individual package of four fold, but be not limited to the individual package that this folding is four fold, for example, for the absorbent commodity of long type more on length direction, pack after also can being converted into three foldings.

In addition, by by the folding position k of shape shown in Figure 13 (a) ₂be arranged on the position that can not fold high absorbent portion 1b in rear and be adjacent to high absorbent portion 1b in rear, make it along high absorbent portion 1b bending in rear, while opening folding absorbent commodity 10, can be at folding position k ₂do not stay and cause the gauffer of unplessantness displeasure or dark folding line.And then the groove 12 forming continuously by forming point-like embossing, and divide to rear part step-down obliquely from front part by the height that makes high absorbent portion 1b in rear, can make gauffer or folding line be difficult for forming.

The rivel 4k that holds up of the tubular of side prevents that because of what the formation of rigid region brought the effect that in front and rear, the strong crease between high absorbent portion forms is slowly bending, except above-mentioned such effect, hold up rivel and be difficult for collapse brought difficult formation gauffer or the effect of folding line by thering is inner side and the barrel-shaped structure of this two places cocked position of outside, also having.Although effect than the effect of holding up rivel of barrel-shaped structure a little less than, but for by elastic performance partially folded and holding up rivel or having the rivel of holding up of holding up rivel (shown in example 1-2) or Y word section shape of the so-called T word section shape in the outstanding elastic region of performance, to the inside/outside of forming also can show and be difficult for the brought same effect of collapsing.

Below, the preferred example of second embodiment of the invention is described.

Figure 15 schematically represents that the preferred example of second embodiment of the invention is the disrumpent feelings axonometric chart in part of the individual package (example 2-1) of sanitary napkin.Figure 16 is the disrumpent feelings axonometric chart in part (but, sheet for packaging and peel not shown) of the absorbent commodity (sanitary napkin) when schematically representing the unwrapp of the individual package shown in Figure 15 and extending.

The sanitary napkin of this example 2-1 has absorber 1 between the back-sheet 3 of liquid impermeability and the face sheet 2 of liquid permeability.This face sheet 2 and the skin of wearer are used in contact, and in the time having the excretions such as menses, absorber 1 absorbs the discharged liquid etc. that has seen through face sheet 2 keep.And in this example 2-1, circumference embossing 26 and side embossing 27 are to form face sheet 2 and the integrated mode of absorber 1.Thus, face sheet 2 and absorber 1 can not misplace and be fixed, and can stop to side or fore-and-aft direction flows through the liquid etc. coming, thereby prevent fluid seepage.The method that forms this circumference embossing and side embossing is not particularly limited, and can form by the method for using in common this kind of article.

And then the sanitary napkin 30 of this example 2-1 is engaged back-sheet 3 and face sheet 2 seal by perimeter 25.In this example 2-1, as the method that forms perimeter, can list for example heat seal.In addition, the sanitary napkin 30 of this example 2-1, at the central slightly front veutro of article length direction, has the side alar part 8 stretching out towards its outside on the dual-side of item width direction.This side alar part 8 folds in use a side contrary with the skin side of wearer and its back side is bonded in to the crotch of underwear, can prevent mobilely, and can prevent the stained of underwear that side leakage causes.Although not shown, from further effectively preventing the viewpoint of side leakage, also preferably arrange dress time and skin face hold up in contact and be disposed at the three-dimensional rivel of face sheet side and be used to form its side sheet material.In addition, on absorbent commodity 30, the underwear face side of sheet material 3 is provided with the bonding material of Anti-dislocation (not shown) overleaf, fixes and installs in the position that becomes contact condition as described above.

Absorber 1 in this example 2-1 is overlooked and is disposed at roughly on whole of article according to the mode of periphery aileron portion that reserves absorbent commodity.This absorber 1 by spread all over above-mentioned circumference embossing 26 inner body the absorber 1c of lower floor and be arranged at upper strata absorber (1a, 1b) on this lower floor's absorber and form.Here, the absorber 1c of lower floor is strip, is widely disposed at article on the whole, near article leading section 10c, extends near rearward end 10d.Contrast with it, this upper strata absorber has in the front side-prominent towards skin, the veutro front of wearer high absorbent portion (front absorption convex shaped part) 1a and high absorbent portion (rear absorption convex shaped part) 1b in the rear side-prominent towards skin, dorsal part rear.In this example 2-1, upper strata absorber and lower floor's absorber are bonded together, and this joint method is not particularly limited, and are preferably processed and are engaged by hot melt adhesives or point-like concavo-convex (embossing).

In this example 2-1, have on high absorbent portion 1a in forwardly and the vaginal orifice of wearer point of release G in opposite directions, this part is with the mode be firmly close to and the skin contact of wearer.Therefore,, in the time having discharged liquid (menses etc.), by face sheet 2, this discharged liquid directly moves in front high absorbent portion 1a and is absorbed.And owing to making high absorbent portion 1a protuberance in front, therefore with respect to the absorber that there is no this protrusion, the absorbable liquid measure of this part is many.Thus, can in the case of the careless expansion that prevents menses etc., absorb and keep.In addition, absorbed that in the front of menses etc., high absorbent portion 1a is owing to being integrated with the absorber 1c of lower floor, institute is so that menses move to this lower floor rapidly, even if there is for example activity of oppressed such wearer, the menses that once absorb etc. also can not flow out.

On the other hand, in the rear of this example 2-1, high absorbent portion 1b contacts with buttocks in the time dressing, and particularly corresponding buttocks stitches anally assigns to be close to compared with deep.And high absorbent portion 1b can not absorb high absorbent portion 1a in front or how much return to some extent and flow to the absorption such as liquid coming at rear (buttocks side) and become " barrier rib " that prevent rear seepage in rear.; even if having and flow through next liquid etc. from front; in rear, side, front (obstruct face) H (with reference to Figure 17-1, Figure 18) of high absorbent portion 1b also can catch this liquid etc.; do not allow it flow to article outsides, and promptly in high absorbent portion 1b in this rear or the absorber 1c of lower floor, introduce.From this point of view, in rear, the obstruct face of high absorbent portion 1b H preferably becomes can inclination or the vertical surface with fillet, so that become with respect to the upper surface of the absorber 1c of lower floor the face of holding up, and be preferably and article front tabular surface in opposite directions or the face with fillet.For example, under the posture of the accumbency in the time of wearer recumbency, or because the activity of health etc. makes close property between skin face and the article surface of point of release G place wearer impaired or the situation of dislocation occurs, and the amount situation more and that can not absorb completely at the front side of absorber of menses etc. etc. has generation.Now, being close in the rear of buttocks seam high absorbent portion 1b also can bring into play and absorb menses to prevent the effect of seepage.

Below with reference to Figure 15 and Figure 16, the packed state of the individual package to this example 2-1 describes.Package sheet material 34 is overlapping rear folding at outer surface and the sanitary napkin 30 of back-sheet 3 one sides of sanitary napkin 30.First, in the rear of sanitary napkin 30 in separated region r near high absorbent portion 1b or with rear in the baseline k of high absorbent portion 1b adjacency ₁place bends and folds together with package sheet material 34.And then, forwardly near high absorbent portion 1a or the baseline k of the close front part 10c being adjacent ₂represented folding line place is folding together with package sheet material 34, thereby is converted into three foldings.Then, pack the edge of sheet material 34 with sealing 35, thereby form, the sanitary napkin 30 that is converted into three foldings is wrapped in to inner individual package 100 '.On package sheet material 34 after bending, on the end of surface one side that is exposed to individual package 100 ', paste peel 33 sealing.While being opened bag, by peel 33 is drawn towards direction T, thereby will open in the bonding of package sheet material 34 at potted line 35 places, what engage in the mode that can not peel off with package sheet material 34 the 1st is peeled together with package sheet material 34 with the 2nd peeling paper (not shown), thereby sanitary napkin wherein 30 is taken out under the state of taking off after peeling paper.

Figure 17-1st, represents the profile of the IV-IV line section in Figure 16.As shown in this Figure 17-1, in the sanitary napkin of this example 2-1, high absorbent portion 1b in high absorbent portion 1a and rear arranged front on the absorber 1c of lower floor of even thickness in fact on whole in, two convex shaped parts across separated region r with separated position setting.Figure 17-2nd, the profile of the state of the sanitary napkin that schematically represents this example 2-1 according to the section shown in Figure 17-1 during by individual packaging.But, omit back-sheet 3, face sheet 2, schematically represent by the shape of absorber.

In this example 2-1, separated region r length w in the longitudinal direction _rbe not particularly limited, but the length direction length w of high absorbent portion 1b in preferred consideration and rear _bbetween relation determine (with reference to Figure 17-1).For example, separated region length w in the longitudinal direction _rbe preferably the length direction length w of high absorbent portion 1b in rear _bmore than 60%, more preferably greater than the length direction length w that equals high absorbent portion 1b in rear _b(w _r>=w _b).Particularly, separated region length w in the longitudinal direction _rthe in the situation that of the such sanitary napkin of this example 2-1, be preferably 15～50mm, more preferably 20～40mm.By such setting, by sanitary napkin 30 first at baseline k ₁place is towards the 1st overbending direction u ₁when (with reference to Figure 17-2) fold, in rear, at least a portion of high absorbent portion 1b is contained in separated region r, and the area overlapping with high absorbent portion in front reduces.Then, by it further at baseline k ₂place is towards the 2nd overbending direction u ₂folding, because high absorbent portion 1b in rear is spatially received, become compact individual package 100 ' (with reference to Figure 15) so can suppress local thickening.

In the sanitary napkin of this example 2-1, high absorbent portion 1a length w in the longitudinal direction in front _abe not particularly limited, but with rear in high absorbent portion 1b length w in the longitudinal direction _bthe preferred w of relation _abe greater than w _b(w _b< w _a).About high absorbent portion 1a length w in the longitudinal direction in front _a, consider and the absorption function of the liquid at the point of release G place of this convex shaped part etc. as enough length, be preferably set to 60～120mm, be more preferably set as 70～110mm.About high absorbent portion 1b length w in the longitudinal direction in rear _b, consider aforesaid barrier rib function, be preferably 20～75mm, more preferably 25～50mm.By such setting, in front, in high absorbent portion 1a and rear, high absorbent portion 1b easily absorbs the menses drained etc., and can realize corresponding to the fit of the body bobbing of wearer and compact individual packaging.In addition, the length direction length of separated region is formed as the more than 60% of high absorbent portion 1b in rear, and in the preferred configuration that forwardly, in the length direction Length Ratio rear of high absorbent portion 1a, the length direction length of high absorbent portion 1b is long, become following individual packaging form, i.e. the above-mentioned baseline k of the ratio of sanitary napkin ₂although more in the part in front and front, high absorbent portion 1a is overlapping, positively not overlapping with high absorbent portion 1b in rear, so can make compactness and the more stable individual package of individual packaging shape.

In the sanitary napkin of this example 2-1, in front high absorbent portion 1a with maximum towards face sheet side with height h _aprotuberance (with reference to Figure 17-1).On the other hand, in rear high absorbent portion 1b with maximum towards face sheet side with height h _bprotuberance.Their relation is not particularly limited, but as a kind of method of controlling protuberance, preferably high absorbent portion height h in rear _bhigh absorbent portion height h in < front _a.By by high absorbent portion height h in front _aset get Geng Gao, can directly absorb from point of release G, and in many, also can tackle well its discharged liquid by high absorbent portion 1a in front, on the other hand, in folded rear, high absorbent portion 1b is easily contained in the space of separated region r when individual packaging.

As shown in figure 15, although front and rear overlaps after folding, consider Portability, wish to make thin individual package.In order to obtain thin individual package, can also absorb protuberance by attenuate, but consider that absorbing protuberance corresponding to the front portion of excretory portion will guarantee absorbability, preferably attenuate rear protuberance.

As mentioned above, forwardly in the first absorbed discharged liquid of high absorbent portion 1a on the absorber 1c of lower floor, move and be kept, even and then have rearward flowing liquid etc., also can be caught effectively and absorb by high absorbent portion 1b in rear.In addition, preferably two convex shaped parts are close to along the fluctuating of health.From this viewpoint, in common sanitary napkin, particularly, high absorbent portion height h in front _abe preferably 2.5～10mm, more preferably 3～8mm.High absorbent portion height h in rear _bbe preferably 2～9mm, more preferably 2.5～7mm.In addition, high absorbent portion height h in front _awith high absorbent portion height h in rear _bdifference be preferably 0.5～5mm, more preferably 1～4mm.Now, the thickness h of lower floor's absorber _cbe preferably 1.5～6mm, more preferably 2～5mm.In addition,, in the present invention, unless otherwise specified, the thickness of absorber or the thickness at its each position (comprising the height of above-mentioned middle high portion) are the values of measuring based on the assay method with shown in embodiment described later.

In example 2-1, when folding, the rear part s of high absorbent portion 1b in rear ₂rear part t with high absorbent portion 1a in front ₂overlapping opposite to each other.For the thickness of this lap is also suppressed as much as possible, as other method of controlling protuberance, in this example 2-1, make the rear part t of high absorbent portion 1a in this front ₂projecting height and its front part t ₁projecting height compare and step-down (with reference to Figure 17-2) obliquely.On the other hand, for high absorbent portion 1b in rear, be also to make its height divide s from front part ₁to rear part s ₂step-down obliquely.; according to this form; mutually the mode on top is tackled and made in rear in high absorbent portion 1b and front high absorbent portion 1a overlapping with taper part when folding; even so have overlapping; also can suppress local thickening, and from rear high absorbent portion 1b, need not make its front part divide low especially; can guarantee sufficient height, so formed good obstruct face.

As the method for controlling (reduction) bump height, the method of the inclination to the method for above-mentioned control maximum height and control lap is illustrated, the method can be used separately, also can be used in combination, relevant inclination, can only process high absorbent portion in rear, about the angle of inclination or the length of inclination, also can increase high absorbent portion in rear.

In the sanitary napkin of this example 2-1, on separated region r, form the depressed part 19 that becomes mortar shape depression 19 '.This depressed part 19 is circular-arc while overlooking, in other words, has crescent shape or parabolic shape, makes its protuberance towards article front and its inner side is configured towards article rear.And, configure with the mode that the forward end of high absorbent portion 1b in rear contacts according to the curved interior of this circular-arc depression.By such configuration, be provided with the part of depressed part 19 due to different from the flexural rigidity of its periphery, so easily become the starting point of bending, in rear, high absorbent portion 1b can not bend, the position that therefore, can make more accurately to approach the forward end of high absorbent portion 1b in this rear becomes bending baseline k ₁fold.Like this in order to make desired position become bending baseline and be pre-formed depression, thus for example aspect size in rear high absorbent portion can successfully be contained in by the folding space producing, can on the position of its design, become bending baseline k ₁fold, from but preferred.And, by form bending baseline k by intention in separated region r ₁, sanitary napkin 30 can not fold on high absorbent portion 1a and 1b in front and back, thus be difficult for bringing the impact of the crease on high absorbent portion 1b in high absorbent portion 1a and rear in front, while being difficult for causing the destruction of convex shaped part or dressing crease residual etc.In addition, in the present invention, so-called " in high absorbent portion be contained in (in the space of regulation) ", refer under the folded state of absorbent commodity, its convex shaped part is not overlapping with other convex shaped part, or only partly overlap, the portion's (being preferably more than half) that of middle high absorbent portion enters in the separated region of high absorbent portion before and after separating, and the Thickness Ratio convex shaped part of this part of article has obtained inhibition when overlapping to pushing up each other.

The shape of depressed part 19 is circular-arc while preferably overlooking as described above.Circular-arc by being arranged to, easily make at least a portion of high absorbent portion 1b in rear be contained in folding line k such in above-mentioned separated region r ₁baseline as the shape along depressed part 19 forms.And by making as described above depressed part 19 bring in formation along the front of high absorbent portion in rear, can improve the introducing effect towards the absorber 1c of lower floor that is blocked the liquid that face H (this obstruct face H has utilized the wall of this convex shaped part of configuration herein) catches, be preferred from this viewpoint.The degree of depth of depressed part 19 is preferably the degree of depth of enough this degree of flexibility that can obtain the absorber 1c of lower floor.Depressed part 19 for example can form by heat embossing method as described as follows., use and possess the heat embossing device having corresponding to the knurling rolls of the convex strip portions of the shape of depression and the backing roll that configures in opposite directions with the periphery of knurling rolls on periphery.By absorber and face sheet according to face sheet side is inserted between two rollers in the mode of knurling rolls side.Then, they heated integratedly and are pressurizeed, thereby forming depression.In addition, beyond heat extraction embossing, can also form by ultrasonic wave embossed method, high-frequency embossing method etc.

Figure 18 is the profile schematically representing after the depression periphery shown in Figure 17-1 is amplified.On sheet material 3, disposing overleaf thickness is h _cabsorber 1c, and then form in the above high absorbent portion 1b in rear, and cover with face sheet 2.As mentioned above, depressed part 19 configures close to high absorbent portion in rear, at its width w _dthe central bending baseline k that forms ₁.The length direction width w of depressed part 19 _dbe preferably 3～25mm, more preferably 5～20mm.The length 1d (with reference to Figure 19) of depressed part 19 on width is preferably 20～50mm, more preferably 25～40mm.

Figure 19 is the configuration relation of high absorbent portion 1b and top view that they are schematically represented in high absorbent portion 1a, rear in plan view shape in order to understand the depression in this example 2-1 and the absorber 1c of lower floor, front.As mentioned above, depressed part 19 bends to circular-arc, has protuberance 19f and medial part 19r.Make this protuberance 19f towards front 10c direction, and in bending medial part 19r place and rear high absorbent portion 1b adjacency.The inside of depressed part 19 forms the state more caving in than its periphery on the whole, and, in its region, process and formed the surface configuration rising and falling by embossing, in the middle of depression also regularly and roughly equally spaced formed the part 19m (corresponding to the impression 19a～19e of the first embodiment) of low (deeply) and the part 19n of height (shallow).In addition, make the summit of embossing protuberance lower than the surface of the absorber 1c of lower floor.

Here, the folded form of the sanitary napkin in the individual package of this example 2-1 is described in detail.In this example 2-1, at bending baseline k ₁in the rear of the sanitary napkin of place's bending, high absorbent portion 1b contacts and is contained in separated region interior (with reference to Figure 17-2) opposite to each other with high absorbent portion 1a in front.

On the other hand, in the time not having separated region, middle high absorbent portion to form in the mode of front and back one, before and after when folding in high absorbent portion overlap each other, in individual package in the thickness of high absorbent portion be approximately the front thickness h of middle high absorbent portion _awith rear thickness h _bthe h of sum _a+ h _b.In addition, for example in middle high absorbent portion from front veutro until the individual package of the sanitary napkin that rear dorsal part forms a succession ofly, because in any case folding line all can be configured on convex shaped part, so in can form broken line and be out of shape in high absorbent portion, thereby also may have harmful effect to dressing comfort or absorbability.

Contrast, in this example 2-1, known with reference to Figure 17-2 with it, and the THICKNESS CONTROL of absorber convex shaped part that can be when folding is h roughly _a.And example 2-1 is owing to being that position on non-convex shaped part is folding, so the impact of creasing is little.As a result, the wearing comfort while installation after taking out from individual package is good, and the absorption seepage causing because of shriveling of absorber also can be inhibited.Particularly, in the blocking part that in the front of the absorbing power of direct requirement near the more menses point of release, high absorbent portion and playing is leaked after absorbing or the rear of the effect of stop, high absorbent portion point building site in function configures.And the convex shaped part of front and back is arranged to respectively the recessed position of the health of being close to wearer, be positioned at separated region in the middle of their along the less position configuration of the body bobbing of wearer, can obtain as a whole the close property high with skin.,, because necessary position is firmly close to and can obtains desired absorbability, can flexibly be affixed on the skin of wearer due to the resiliency of convex shaped part, thereby obtain good wearing comfort.

Below, as another preferred configuration (example 2-2) of second embodiment of the invention, to have roughly rectangular shape that two above-mentioned upper surfaces do not tilt in the individual package of sanitary napkin of high absorbent portion describe.Figure 20-1st, the profile of the sanitary napkin 40 in example 2-2, Figure 20-2nd, the profile of state when schematically the sanitary napkin shown in presentation graphs 20-1 is by individual packaging.In Figure 20-2, high absorbent portion 1a, 1b are completely not overlapping in two, and 1b is contained in separated region r completely.Thus, even the shape that upper surface does not tilt, the THICKNESS CONTROL of absorber convex shaped part that also can be when folding is h roughly _a.In Figure 20-1,20-2, having represented does not have middle high absorbent portion overlapping example each other when folding completely, but in rear, at least a portion of high absorbent portion 1b is contained in separated region r, consider absorbent properties etc., when folding as required in the overlapping form of a part of high absorbent portion also can suitably adopt.

The individual package of the absorbent commodity of second embodiment of the invention is not limited to above-mentioned each example, can be by appropriately combined their structure, or the structure different from it is also passable.For example consider close property and anti-leakage with skin, also can make in front high absorbent portion in high absorbent portion and rear change, for example in above-mentioned example 2-1, in front, high absorbent portion is to be formed as rectangle, in rear, high absorbent portion is to be arranged to towards article rear portion 10d tapered trapezoidal (with reference to Figure 16, Figure 19), easily more being close to thus human body, is preferred from this viewpoint.Now, in trapezoidal rear, high absorbent portion preferably arranges widelyr than high absorbent portion in front in its base.In addition, in rear, high absorbent portion can also adopt triangle or rectangle.

And then following example is also preferred: select in front the plan view shape of high absorbent portion in high absorbent portion and rear, make when folding for individual packaging on in-plane both chimeric.The Figure 21 that has represented this example is the top view that schematically represents the shape of the absorber in the sanitary napkin of another preferred example (example 2-3) of second embodiment of the invention.This Figure 21 is the schematic top view corresponding to Figure 19 of example 2-1.In the front arranging on the absorber 1c of lower floor, high absorbent portion 1a has the jag t outstanding towards article rear ₃.Corresponding with it, in rear, high absorbent portion 1b has the recess recessed towards article rear (notch portion) s ₃.By such setting, at bending baseline k ₁when place is folding, in rear, high absorbent portion is disposed at 1d, the jag t of high absorbent portion 1a in front ₃recess (notch portion) s with high absorbent portion in rear ₃chimeric, convex shaped part is not overlapped each other.

Figure 22 (a) and (b) in represented to have formed on separated region while overlooking outstanding and become top view and the profile of the sanitary napkin 50 of the depressed part 19 of convex towards the rear.This Figure 22 (a) and (b) shown in be variation, and the sanitary napkin that further schematically shows of the example shown in Figure 15.In addition, in order easily to understand the relation of the top view of Figure 22 (a) and profile (b), add boost line a～f, and represent face sheet, back-sheet and the article profile being drawn by them with chain-dotted line.

As shown in above-mentioned Figure 22 (a), by forming towards the rear the depressed part 19 of " > " font of convex, the interval of the depression of width narrows, the thickness attenuation of lower floor's absorber like this, in rear, high absorbent portion is partly accommodated in this part, so the shape of the sanitary napkin under individual packaging state is easily stable.

As the shape (variation) of depression of separated region that can show effect same, as shown in Figure 22 (c), there are (i) U-shaped, the such form of (ii) Ha word shape, can also carry out as (iii) or (iv) direct thickness thinning by caving in.The depressed part forming so easily by baseline configuration in being positioned on the depressed part of rear side, arrange and just easily high absorbent portion in rear be accommodated in separated region like this, be preferred from this viewpoint.Depressed part in Figure 22 (c) be spread all over separated region almost whole region form and form, the baseline of bending is easily formed at the length direction rear side of depressed part, but in order to be easily formed at more rear side, preferably until be formed into the side of high absorbent portion 1a in front.In addition, the depressed part of above-mentioned variation can be made up of the compression unit of wire as illustrated, also can alternately high compression portion and low compression portion be set continuously and on section, form wavy.

Below, the each member using in above-mentioned each example is described.

Face sheet is preferably made up of the material of liquid permeability and the soft-touch to skin.Can use for example non-woven fabrics taking natural fibers such as cottons as material or various synthetic fibers are implemented to fiber that hydrophilicity-imparting treatment the obtain non-woven fabrics as material.Back-sheet is preferably made up of the sheet material of liquid impermeability.Back-sheet can also be the sheet material of water vapo(u)r transmission as required.Particularly, in order to obtain sufficient water vapo(u)r transmission, preferably use the plastic thin film such as polyethylene that is dispersed with the micropowder being made up of fillers such as calcium carbonate is stretched and to have formed the porous film in fine hole.In addition, absorbent commodity also can have side sheet material.As side sheet material, can list non-woven fabrics, thin-film sheet, paper etc.From the viewpoint of anti-leakage, preferably form side sheet material by hydrophobicity non-woven fabrics, the thin-film sheet of anti-leakage etc. of liquid impermeability or difficult permeability.Above-mentioned sheet material can be one, also can be further with combinations such as functional sheet materials and be arranged to more than 2.As the formation material of absorber, can use the material using in common absorbent commodity.Particularly, for example can use fiber assembly or itself and the macromolecule water uptake polymer material that also use obtains etc.As the fiber that forms fiber assembly, can use the hydrophilic natural fibers such as paper pulp fiber, synthetic fibers (being preferably the fiber of having implemented hydrophilicity-imparting treatment) etc.In the present invention, due to the setting of turning up the soil of high absorption portion in high absorbent portion and rear in front, so can also use different absorbent material at two convex shaped parts.Can be for example that in front, high absorbent portion is used high absorbent portion in paper pulp series fiber rear to use synthetic fibers etc. because paying attention to fit because paying attention to absorbability.

Absorbent commodity of the present invention is not limited to the concrete formation of above-mentioned sanitary napkin, for example, can also further use other functional member or structure.In addition,, in the present invention, absorbent commodity is not particularly limited to comprise the absorption articles with liquid etc., but is preferably sanitary napkin, underwear back boxing (sanitary pad) or incontinence pad etc.

Embodiment

Below, according to embodiment, first embodiment of the invention is further described, but the present invention does not limit thus and explains.

(embodiment)

As face sheet, preparation weight per unit area is 25g/m ², the thickness liquid permeability that is 0.3mm non-woven fabrics.As lower floor's absorber, prepare following absorber: in paper pulp fiber aggregation, add the powder of absorbable polymer (SAP), and it is wrapped up with fibre sheet material, making weight per unit area is 300g/m ², thickness is 3.5mm.Corresponding with it, making preparation weight per unit area with same material is 500g/m ², the thickness upper strata absorber that is 5.5mm, and paste assembling and make the absorber with high absorbent portion in front and rear with above-mentioned lower floor's absorber.As side sheet material, the weight per unit area of preparing liquid impermeability is 20g/m ², the thickness non-woven fabrics that is 0.2mm.As back-sheet, prepare to be equipped with the breathability sheet material that non-woven fabrics and thickness are 0.3mm on the outer surface of the porous sheet of liquid impermeability.In addition, the mensuration of the thickness of above-mentioned absorber is to use the made thickness gauge " PEACOCK UPRIGHT DIAL GUAGE No.207 " (trade name) of the rugged making of Co., Ltd.'s tail, at 5g/cm ²under load, carry out.5 samples are measured, calculated its meansigma methods as thickness.The mensuration of the thickness of other sheet material is to use the made thickness gauge " PEACOCKUPRIGHT DIAL GUAGE No.25 " (trade name) of the rugged making of Co., Ltd.'s tail, at 8g/cm ²under load, carry out.5 samples are measured, calculated its meansigma methods as thickness.

Combine above-mentioned face sheet, absorber and side sheet material, in necessary part, utilize embossing or heat fusing etc. to implement to engage processing, thus the sanitary napkin of form shown in construction drawing 1.But, the embossed portion (impression) that now becomes rigid region is arranged to the pattern A shown in Figure 12.In addition, separately also made respectively the sanitary napkin that is formed rigid region by the embossed portion (impression) of being arranged to the pattern B～I shown in Figure 12.

(comparative example)

Similarly make sanitary napkin with above-described embodiment.But, do not have the embossing that is equivalent to pattern A～I is set, make the sanitary napkin without rigid region.

Embodiment is carried out to individual packaging as shown in Figure 13 and Figure 14 like that with the sanitary napkin of making in comparative example together with package sheet material, and the standing a few days.Then, untie the packaging of each individual package, with residual folding line on the folding position of visual valuation rigid region and the part suitable with it.Evaluation is distinguished folding position " the residual folding lines in substantial middle place of article " and " holding up folding line residual in rivel portion " come respectively and is evaluated judgement.Evaluation is to be undertaken by 3 participants.Evaluation result, according to the depth of folding line or state, is that good result starts to divide into successively " ◎ ", "○", " △ ", "×" from evaluating and dress the pass of performance, and is shown in Figure 12.In addition, the result of comparative example is not shown in figure, but article central authorities and the evaluation of holding up the folding line of rivel portion are the result of "×".

The result of the absorber part to above-mentioned result of the test further describes below." ◎ " represents almost there is no residual folding line, and "○" represents almost not form folding line, and " △ ", although represent to have formed folding line, if stretching folded part becomes not obvious, "×" represents obviously to have formed folding line, even and if stretch and also leave vestige.The particularly sanitary towel of comparative example, different with the sanitary towel of embodiment except the state of folding line, have beyond darker wire folding line, it also leaves in a large number along the folding line of the gauffer shape of multiple irregular directions extensions.

About holding up the state of rivel part, "○" represents to hold up rivel and does not almost collapse flatly, and " △ " represents that rivel slightly collapses flatly, but not obvious, "×" represents that rivel part has produced deformation, and rivel collapses flat, and it is unstable that shape becomes.

Claims (5)

1. the individual package of an absorbent commodity, it is by absorbent commodity folding and individual package of the absorbent commodity that obtains together with packaging material, described absorbent commodity has face sheet, back-sheet and the absorber between described two sheet materials, it is characterized in that:

On described absorber, have towards high absorbent portion in high absorbent portion in the front of the skin side protuberance of wearer and rear, in described two, high absorbent portion is disposed at front veutro and the rear dorsal part of wearer dividually across separated region, described absorbent commodity is folded at the crooked place place that is positioned at described separated region, under this folded state, in described rear, all or part of of high absorbent portion is contained in described separated region.

2. the individual package of absorbent commodity according to claim 1, wherein, in described front, the bump height of the rear section of high absorbent portion is lower than the bump height of the front part of high absorbent portion in this front, under described folded state, in described rear, in a part for high absorbent portion and described front, the rear section of high absorbent portion is overlapping.

3. the individual package of absorbent commodity according to claim 1 and 2, wherein, separated region at described absorber is formed with depressed part, this depressed part is by forming from the one side pressure contracting of skin face, and described absorber and described face sheet are engaged, this depressed part becomes described crooked place.

4. the individual package of absorbent commodity according to claim 3, wherein, described depressed part has circular-arc shape in article top view, this depressed part configures in the following manner: make it bend to circular-arc ledge towards article front, and make its bend to circular-arc inner side part be arranged in the high absorbent portion in described rear front end edge edge near or with the front end edge edge adjacency of the high absorbent portion in described rear.

5. the individual package of absorbent commodity according to claim 1 and 2, wherein, in described rear, the bump height of high absorbent portion is lower than the bump height of high absorbent portion in described front.