CN104349759A

CN104349759A - Absorbent article

Info

Publication number: CN104349759A
Application number: CN201380028281.5A
Authority: CN
Inventors: 柳原茂人; 富田美奈; 铃木彦行; 佐藤信也
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2012-06-11
Filing date: 2013-05-31
Publication date: 2015-02-11
Anticipated expiration: 2033-05-31
Also published as: BR112014027238A2; CN104349759B; BR112014027238B1; RU2014152702A; TW201402097A; TWI566758B; WO2013187260A1; RU2631646C2; JP2013255557A; JP6099239B2

Abstract

A diaper (1), which is an embodiment of the present invention, is provided with a front sheet (2), a back sheet (3), and an oblong absorbent body (4) disposed between the front and back sheets (2, 3). The absorbent body (4) has an absorbent core (41). The absorbent core (41) has: vertical grooves (44Y) that extend in the vertical direction (the Y direction); horizontal grooves (44X) that extend in the horizontal direction (the X direction); and block-shaped areas (411) that are positioned at locations partitioned by the vertical grooves (44Y) and the horizontal grooves (44X), and comprise multiple oblong high basis weight areas (43), which have a higher basis weight than the locations of each of the vertical grooves (44Y) and the horizontal grooves (44X). The high basis weight areas (43) of the absorbent core (41), and low basis weight areas (44) comprising locations positioned at each of the vertical grooves (44Y) and the horizontal grooves (44X) are integrally formed. The vertical grooves (44Y) and the horizontal grooves (44X) are formed so as to have the same thickness, or the horizontal grooves are formed more thinly. In a plan view, the width of the horizontal grooves (44X) is formed more widely than the width of the horizontal grooves (44Y).

Description

Absorbent commodity

Technical field

The present invention relates to the absorbent commodities such as a kind of disposable diaper.

Background technology

All the time, there will be a known the absorbent commodity (with reference to patent documentation 1) that a kind of use is provided with the bulk absorbers (absorbent core) in the extended channel-shaped space of in-plane.Absorbent commodity described in patent documentation 1 has following absorber (absorbent core): the higher and first area lower containing ratio of hydrophilic fibre containing ratio being provided with polymeric absorbent body; The second area higher containing ratio containing the lower and fibrous material of ratio of polymeric absorbent body compared with first area; Certainly the second area being arranged at outer surface sheet side is through to the space in the first area being arranged at inner surface sheet material side.Owing to having this kind of absorber, therefore there is the situation that can effectively prevent colloid from luming in absorbent commodity described in patent documentation 1.

As other technology, the absorbent commodity (with reference to patent documentation 2) that the applicant had previously proposed to configure broken a plurality of little absorbent portion when overlooking on substrate sheet material and formed absorber (absorbent core).The content that little absorbent portion interval each other adjacent on little absorbent portion adjacent on longitudinal direction interval each other and transverse direction is different is recorded in patent documentation 2.

Prior art document

Patent documentation

Patent documentation 1: Japan Patent 2009-119154 publication

Patent documentation 2: Japan Patent 2011-136034 publication

Summary of the invention

But there is no any relevant record for the width in the space extended along longitudinal direction with along the relation of the width in the space that transverse direction extends in patent documentation 1, absorbent commodity described in patent documentation 1 effectively cannot utilize the absorptive capacity of absorber.

In addition, in the absorber (absorbent core) of absorbent commodity described in patent documentation 2, because substrate sheet material and a plurality of little absorbent portion unshaped are integrated, but separate separately, therefore have the situation being difficult to body fluid is successfully shifted, there is room for improvement in absorbent commodity described in patent documentation 2 in effectively the utilizing of absorptive capacity of absorber.

Therefore, problem of the present invention is that providing a kind of can make body fluid spread efficiently in the wider range of absorber and can utilize the absorbent commodity of absorptive capacity efficiently.

The present invention relates to a kind of absorbent commodity, its absorber that there is the face sheet being configured in skin opposite face side, the back-sheet being configured in non-skin opposite face side and be configured in the lengthwise between these two sheet materials.Above-mentioned absorber has the absorbent core containing absorbing polymeric, and above-mentioned absorbent core has boxed area, and this boxed area comprises: the pod that the longitudinal direction along absorbent commodity extends; Along the translot that the transverse direction of absorbent commodity extends; With grammes per square metre in the position marked off by this pod and this translot than each the high grammes per square metre portion of much higher the lengthwise in position of this pod and this translot.The above-mentioned high grammes per square metre portion of above-mentioned absorbent core is integrally formed with the low grammes per square metre portion be made up of the position laying respectively at above-mentioned translot and above-mentioned pod.The thickness of above-mentioned pod is identical with the thickness of above-mentioned translot, or the thickness of this pod of Thickness Ratio of this translot is thin, and when overlooking, the width of this translot is wider than the width of this pod.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the disposable diaper of the deploying type of embodiments of the present invention.

Fig. 2 is that top view is blocked in the local observing the disposable diaper shown in Fig. 1 from face sheet side.

Fig. 3 is the I-I line profile of Fig. 2.

Fig. 4 is the axonometric chart of the face sheet that the disposable diaper shown in Fig. 1 has.

Fig. 5 is the top view observing the absorbent core that the disposable diaper shown in Fig. 1 has from back-sheet side.

Fig. 6 is the close-up top view of the absorbent core shown in Fig. 5.

Fig. 7 is the skeleton diagram of an example of the manufacturing installation representing the absorber used in the disposable diaper of the deploying type of embodiments of the present invention.

Fig. 8 is the constructed profile in the width direction of a part (recess) for the outer peripheral face side of the rotating cylinder shown in Fig. 7.

Fig. 9 is that the recess of the rotating cylinder represented shown in Fig. 7 piles up the constructed profile having the state of absorbent material.

Figure 10 is for illustration of the key diagram of body fluid when wearer is drained during the wearing of the disposable diaper shown in Fig. 1 to the diffusion of absorbent core.

Figure 11 is the axonometric chart of the face sheet used in the disposable diaper of another embodiment of the present invention.

Figure 12 is the top view observing the absorbent core used in the disposable diaper of another embodiment of the present invention from back-sheet side.

Figure 13 is the top view observing the absorbent core used in the disposable diaper of another embodiment of the present invention from back-sheet side.

Figure 14 is the top view observing the absorbent core used in the disposable diaper of another embodiment of the present invention from back-sheet side.

Figure 15 is the top view observing the absorbent core used in the disposable diaper of another embodiment of the present invention from back-sheet side.

Detailed description of the invention

Below, based on preferred embodiment, with reference to Fig. 1 ~ Fig. 6, absorbent commodity of the present invention is described.Fig. 1 represents the axonometric chart of the disposable diaper of the deploying type of embodiments of the present invention, and Fig. 2 represents that top view is blocked in the local observing the disposable diaper shown in Fig. 1 from face sheet side, and Fig. 3 represents the I-I line profile of Fig. 2.In addition, Fig. 4 represents the axonometric chart of the face sheet that the disposable diaper shown in Fig. 1 has, and Fig. 5 represents the top view of the absorbent core that the disposable diaper shown in Fig. 1 has, and Fig. 6 represents the close-up top view of the absorbent core shown in Fig. 5.

As shown in Figure 1 and Figure 2, the disposable diaper 1 (hereinafter also referred to " diaper 1 ") of present embodiment comprises the face sheet 2 being configured at skin opposite face side, the back-sheet 3 being configured at non-skin opposite face side and is configured at the absorber 4 of the lengthwise between this two sheet material 2,3.As shown in Figure 2, the centre line C L that is formed as about extending along longitudinal direction of diaper 1 is symmetrical.

Carry out in detail describing to the diaper 1 of present embodiment, as shown in Figure 2, diaper 1 has diaper 1 in the deployed state along veutro portion A, the drosal part B of longitudinal direction (hereinafter also referred to " Y-direction ", Y-direction: refer to the direction being parallel to centre line C L) 3 deciles and the crotch C that is positioned between this A, B.Veutro portion A is the position being positioned at the veutro of wearer when dressing diaper, and drosal part B is the position of the dorsal part being positioned at wearer, and crotch C is the position of the in-leg being positioned at wearer.Crotch C is positioned at longitudinal direction (Y-direction) central part of diaper 1.In addition, the transverse direction (hereinafter also referred to " the X-direction ") direction orthogonal with longitudinal direction (Y-direction) being set to diaper 1 is described.

In this description, so-called " skin opposite face " refers to face in the both sides of each parts such as the face sheet 2 forming diaper 1, that be configured at the skin side of wearer when dressing, so-called " non-skin opposite face " refer in the both sides of each parts such as face sheet 2, when dressing towards the face of the opposition side of the skin side of wearer.

In diaper 1, as shown in Figure 2, the left and right sides edge of veutro portion A and the left and right sides edge of drosal part B more stretch out to transverse direction (X-direction) foreign side than the left and right sides edge of crotch C respectively.And left and right sides edge side in transverse direction (X-direction) of crotch C bends to arc-shaped, and entirety has longitudinal direction (Y-direction) central part and inwardly just receives thin shape.Face sheet 2 and the back-sheet 3 respectively left and right sides edge of self-priming acceptor 4 and rear and front end edge are stretched out outward.As shown in Figure 3, the size of the transverse direction (X-direction) of face sheet 2 is less than the size of the transverse direction (X-direction) of back-sheet 3.Face sheet 2 and back-sheet 3 directly engage at the extension stretched out outward from the periphery of absorber 4 respectively or are bonded with each other across other parts, to clamp, fix absorber 4.About the bonding agent 5 of fixing absorber 4, hereafter carrying out in detail describing.

As shown in Figure 1 and Figure 2, diaper 1 is the diaper of so-called deploying type, be provided with a pair pull stap 7,7 in the edge, the left and right sides of drosal part B, the outer surface (non-skin opposite face) of veutro portion A be provided with fix this pull stap 7,7 take band (landing tape) 8.As shown in Figure 2, at each of the both sides along longitudinal direction (Y-direction) of diaper 1, there is the three-dimensional gauffer formation sheet material 62 being fixed on the elastomeric element 61 of Y-direction with extended state configure and be fixed on the sidepiece of face sheet 2, form a pair three-dimensional gauffer 6,6 (with reference to Fig. 1, Fig. 3) thus.In addition, as shown in Figure 2, at each of the both sides along longitudinal direction (Y-direction) of diaper 1, multiple leg elastic members 63 that leg creases is formed are configured at Y-direction with extended state, utilize the contraction of leg elastic members 63 and form leg creases.In addition, in longitudinal direction (Y-direction) end of the drosal part B side of diaper 1, the waist elastic members 64 that waist gauffer is formed is configured at X-direction with extended state, utilizes the contraction of waist elastic members 64 and forms waist gauffer.

As shown in Figure 2 to 4, in diaper 1, face sheet 2 has the multiple protuberances 21 and the recess 22 adjacent with protuberance 21 that protrude to skin opposite face side, and the skin opposite face side of face sheet 2 becomes sag and swell, and the non-skin opposite face side of face sheet 2 is smooth.As shown in Figure 4, the face sheet 2 of diaper 1 comprises ground floor 23 and the second layer 24 of tablet.Ground floor 23 forms the skin opposite face of face sheet 2, and the second layer 24 forms the non-skin opposite face of face sheet 2.As shown in Figure 4, ground floor 23 is formed outstanding to skin opposite face side and inside becomes multiple protuberances 21 in cavity, and is formed with recess 22 between protuberance 21.In addition, the second layer 24 becomes plane.In addition, at recess 22, ground floor 23 and the second layer 24 engage via junction surface 25.There is junction surface 25 at recess 22 and be positioned at the disengaged portion of outer peripheral edge at junction surface 25.

In the face sheet 2 of diaper 1, as shown in Figure 4, protuberance 21 is surrounded by the recess 22 that 4 places have junction surface 25, and its bottom surface is rectangle when overlooking.In addition, protuberance 21 entirety is formed as crestal line with the flat cuboid of radian or butt corner cone.On the other hand, recess 22 also becomes rectangle when overlooking.In addition, in the face sheet 2 of diaper 1, protuberance 21 is surrounded by 4 junction surfaces 25 (recess 22), but also can be surrounded by the junction surface 25 (recess 22) more than 4.

In the face sheet 2 of diaper 1, as shown in Figure 4, protuberance 21 and recess 22 are formed as the row alternately configured along Y-direction, and these row are configured with multiple row in X direction.When being conceived to any one protuberance 21 in above-mentioned row, in the row of the left and right adjacent in the X direction with these row, there is not protuberance 21 in the position adjacent with this protuberance 21.Specifically, in the X direction in adjacent 2 row, respectively stagger half spacing and configuring in the Y direction in junction surface 25 (recess 22).Therefore, when any one junction surface 25 (recess 22) be conceived in string, the closed recess that this junction surface 25 (recess 22) becomes before and after it and left and right is surrounded by protuberance 21 and formed.That is, when overlooking face sheet 2 from ground floor 23 side, junction surface 25 (recess 22) is configured to staggered lattice-shaped, and protuberance 21 is also configured to staggered lattice-shaped.

From the view point of reducing with the contact pressure of health, making wearing feeling good, the height h (with reference to Fig. 4) of protuberance 21 is more than 0.5mm, be preferably more than 1mm, and be below 5mm, be preferably below 4mm, more specifically, be preferably more than 0.5mm below 5mm, be more preferably more than 1mm below 4mm.In addition, the bottom size L1 (with reference to Fig. 4) along the protuberance 21 of Y-direction is more than 2mm, and is below 30mm, is preferably below 5mm, more specifically, is preferably more than 2mm below 30mm, is more preferably more than 2mm below 5mm.In addition, bottom size L2 (with reference to Fig. 4) is in X direction more than 2mm, and is below 30mm, is preferably below 5mm, more specifically, is preferably more than 2mm below 30mm, and then is preferably more than 2mm below 5mm.In addition, the floor space of protuberance 21 is 4mm ²above, and be 900mm ²below, 25mm is preferably ²below, more specifically, 4mm is preferably ²above 900mm ²below, 4mm is more preferably ²above 25mm ²below.

Good and the aspect that buffering sense is high from skin sense of touch, the length L3 (with reference to Fig. 4) in X direction at the junction surface 25 of preferred recess 22 is more than 0.1mm, be preferably more than 0.5mm, and be below 20mm, be preferably below 5mm, more specifically, be more than 0.1mm below 20mm, be particularly preferably more than 0.5mm below 5mm.In addition, the length along Y-direction at junction surface 25 is identical with length L3.

Ground floor 23 and the second layer 24 comprise identical or different tablet.This tablet is essentially non-telescoping.As the material of sheet material, as long as the existing known material for being essentially non-telescoping in the material of diaper, just can use with no particular limitation.Such as can enumerate by various non-woven fabrics such as non-woven fabrics, spun-bonded non-woven fabrics, melt spraying non-woven fabrics, spun-laced nonwoven fabric and the needle punched non-woven fabrics manufactured by comb and parallel cotton fibers prior to spinning method.In addition, also can use and utilize shedding mechanism and can through the thin film etc. of liquid.When using non-woven fabrics as sheet material thing, from the aspect such as intensity, lifting skin sense of touch guaranteeing face sheet 2, preferably its fiber number forming fiber is more than 1dtex, be preferably more than 1.5dtex, and be below 20dtex, be preferably below 5.6dtex, more specifically, for more than 1dtex below 20dtex, be particularly preferably more than 1.5dtex below 5.6dtex.

The grammes per square metre (mass area ratio) of ground floor 23 is 10g/m ²above, 15g/m is preferably ²above, and be 100g/m ²below, 30g/m is preferably ²below, more specifically, 10g/m is preferably ²above 100g/m ²below, 15g/m is more preferably ²above 30g/m ²below.On the other hand, the grammes per square metre of the second layer 24 is 5g/m ²above, 10g/m is preferably ²above, and be 50g/m ²below, 30g/m is preferably ²below, more specifically, 5g/m is preferably ²above 50g/m ²below, 10g/m is more preferably ²above 30g/m ²below.The grammes per square metre comprising the entirety of the face sheet 2 of ground floor 23 and the second layer 24 is 15g/m ²above, 20g/m is preferably ²above, and be 150g/m ²below, 60g/m is preferably ²below, more specifically, 15g/m is preferably ²above 150g/m ²below, 20g/m is more preferably ²above 60g/m ²below.

The preferred manufacture method with the face sheet 2 of above structure be filed an application before the applicant Japanese Unexamined Patent Publication 2004-174234 publication, have in Japanese Unexamined Patent Publication 2005-111908 publication described in.

As shown in Figure 2 and Figure 3, absorber 4 has the absorbent core 41 comprising absorbing polymeric, in diaper 1, also has the coating member 42 of coated absorbent core 41.In diaper 1, absorber 4 utilizes the coating member 42 as the hydrophilic sheet of liquid permeability be coated on the absorbent core 41 of liquid retainability longer on longitudinal direction (Y-direction) and formed.

As shown in Fig. 2, Fig. 5, absorbent core 41 has boxed area 411, and this boxed area 411 comprises: the pod 44Y extended along longitudinal direction (Y-direction); Along the translot 44X that transverse direction (X-direction) extends; Be configured at the position that marked off by pod 44Y and translot 44X and compare the high grammes per square metre portion 43 of grammes per square metre more much higher lengthwise with each position of translot 44X with groove 44Y.In addition, below, due to absorbent core 41 part that grammes per square metre is relatively low compared with high grammes per square metre portion 43 that pod 44Y and translot 44X are the positions be positioned at wherein, therefore also groove 44Y and each position of translot 44X are referred to as " low grammes per square metre portion 44 (translot 44X, pod 44Y) ".To absorbent core carry out in detail describe, as shown in Figure 3, in diaper 1, absorbent core 41 has: grammes per square metre relatively high and rearwardly sheet material 3 side protrude high grammes per square metre portion 43; And it is adjacent and grammes per square metre is relatively low and low grammes per square metre portion 44 (translot 44X, pod 44Y) that is that cave in face sheet 2 side with high grammes per square metre portion 43.High grammes per square metre portion 43 and the low grammes per square metre portion 44 (translot 44X, pod 44Y) of absorbent core 41 are integrally formed.As shown in Figure 3, in the absorbent core 41 of diaper 1, in the non-skin opposite face side of absorbent core 41, be formed with the protrusion (high grammes per square metre portion 43) from face sheet 2 side direction back-sheet 3 side protuberance, and the depressed part (low grammes per square metre portion 44 (translot 44X, pod 44Y)) caved in from back-sheet 3 side direction face sheet 2 side.And the skin opposite face side of absorbent core 41 is smooth.Below, carry out in more detail describing to absorbent core.

As shown in Fig. 2, Fig. 5, the low grammes per square metre portion 44 of the absorbent core 41 in diaper 1 comprises: the position being located at multiple translot 44X of the upper wire (continuous linear shape) extended of transverse direction (X-direction); With the position of multiple pod 44Y being located at the upper wire (continuous linear shape) extended of longitudinal direction (Y-direction).The boxed area 411 of the absorbent core 41 included by diaper 1 is, the pod 44Y entirety of the wire utilizing the translot 44X of the wire extended along transverse direction (X-direction) and extend along longitudinal direction (Y-direction) is formed as lattice-shaped, and at the position (position of grid hole) that translot 44X and the pod 44Y by this linearity marks off, be configured in respectively high grammes per square metre portion 43 longer on longitudinal direction (Y-direction) and formed.

As shown in Fig. 2, Fig. 3, Fig. 5, absorbent core 41 has boxed area 411, this boxed area 411 comprises the translot 44X, the pod 44Y that are configured to lattice-shaped and the high grammes per square metre portion 43 being configured at the position marked off by translot 44X, pod 44Y, in diaper 1, also there is the non-boxed area 412 throughout the configuration of the periphery of boxed area 411.As shown in Figure 5, in absorbent core 41, the overall width W of veutro portion A _awith the overall width W of drosal part B _bidentical, the width W of the boxed area 411 of veutro portion A _a1with the width W of the boxed area 411 of drosal part B _b1identical.That is, as shown in Fig. 2, Fig. 5, boxed area 411 is formed as rectangular shape longer on longitudinal direction (Y-direction), and the width W of the veutro portion A of boxed area 411 _a1with the width W of drosal part B _b1identical.As shown in Fig. 2, Fig. 5, the non-boxed area 412 throughout the configuration of the periphery of boxed area 411 is with overall width W _awith overall width W _bidentical mode, the both side edges of the both side edges of veutro portion A and drosal part B is more stretched out to transverse direction (X-direction) foreign side with equal length than the both side edges of crotch C respectively, and entirety is formed as inwardly just receiving thin shape from longitudinal direction (Y-direction) central part near the part of veutro portion A, thus the entire area of drosal part B is greater than the entire area of veutro portion A.Non-boxed area 412 is in the same manner as high grammes per square metre portion 41, and absorbent material is more than low grammes per square metre portion 44.

The boxed area 411 of absorbent core 41 is more specifically described, in diaper 1, as shown in Figure 5, the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 5 massive structures formed regularly on transverse direction (X-direction), from veutro portion A until drosal part B configuration 14 row and being formed on longitudinal direction (Y-direction) regularly.As shown in Figure 5, in the boxed area 411 of diaper 1,6 pod 44Y extended along longitudinal direction (Y-direction) are respectively from veutro portion A until drosal part B is configured to linearity.

As mentioned above, as shown in Figure 3, high grammes per square metre portion 43 and the low grammes per square metre portion 44 (translot 44X, pod 44Y) of absorbent core 41 are integrally formed, in diaper 1, non-boxed area 412 also with high grammes per square metre portion 43 and low grammes per square metre portion 44 (translot 44X, pod 44Y) integrally formed.Herein, so-called " integrally formed " refers to that high grammes per square metre portion 43, low grammes per square metre portion 44 (translot 44X, pod 44Y) and non-boxed area 412 are inseparable not ground integrated each other via engagement means ground such as bonding agent or heat fusions, and is formed as one by same material.Like this, when high grammes per square metre portion 43, low grammes per square metre portion 44 (translot 44X, pod 44Y) and non-boxed area 412 is integrally formed time, having body fluid can the seriality of successfully movement.The manufacture method of this kind of absorber 4 is described hereinafter.

In diaper 1, as shown in Figure 3, absorbent core 41 is formed with the layer 410 of paper pulp monomer at the position by non-skin opposite face side.Be described particularly, form boxed area 411 high grammes per square metre portion 43 rearwardly sheet material 3 side protrude, non-boxed area 412 also rearwardly sheet material 3 side protrude.In addition, in diaper 1, as shown in Figure 3, cave in face sheet 2 side in the low grammes per square metre portion 44 (pod 44Y) forming boxed area 411.Like this, as shown in Figure 3, the absorbent core 41 of diaper 1, on the thickness direction T of diaper 1, be formed in non-skin opposite face side from the protrusion (high grammes per square metre portion 43) of face sheet 2 side direction back-sheet 3 side protuberance and the depressed part (low grammes per square metre portion 44 (translot 44X, pod 44Y)) from back-sheet 3 side direction face sheet 2 side depression, formed by the layer 410 of paper pulp monomer by the top section that position, i.e. high grammes per square metre portion 43 and the non-boxed area 412 of non-skin opposite face side are respective.

In addition, the depressed part (groove) caved in face sheet 2 side of absorbent core 41 is formed primarily of low grammes per square metre portion 44 (translot 44X, pod 44Y), and the protrusion that back-sheet 3 side to absorbent core 41 is swelled is formed primarily of high grammes per square metre portion 43 and non-boxed area 412.Herein, high grammes per square metre portion 43 near the border that so-called " depressed part is formed primarily of low grammes per square metre portion 44 " comprises such as low grammes per square metre portion 44 and high grammes per square metre portion 43 forms the situation of a part for this recess, similarly, " protrusion is formed primarily of high grammes per square metre portion 43 and non-boxed area 412 " comprise such as high grammes per square metre portion 43 and low grammes per square metre portion 44 border near low grammes per square metre portion 44 form the situation of a part for this depressed part.

In addition, as shown in Figure 3, in the absorbent core 41 of diaper 1, low grammes per square metre portion 44 in the thickness direction T upward bias of diaper 1 in face sheet 2 side (the skin opposite face side of absorber 4).As shown in Figure 3, face sheet 2 side of absorbent core 41 is smooth.

As shown in Figure 5, Figure 6, the absorbent core 41 of the absorber 4 included by absorbent commodity of the present invention has following feature: the multiple high grammes per square metre portion 43 being configured at the position marked off by pod 44Y and translot 44X is formed as longer on longitudinal direction (Y-direction) respectively, pod 44Y is identical with the thickness of translot 44X or translot 44X is thinner than pod 44Y, and when overlooking, the width of translot 44X is greater than the width of pod 44Y.In addition, from the view point of Liquid Absorption and liquid diffusion, preferred pod 44Y is identical with the thickness of translot 44X, or the Thickness Ratio pod 44Y of translot 44X is thin.

When absorbent core 41 is in for disposable diaper, the total length being preferably longitudinal direction (Y-direction) is more than 250mm below 550mm, and the beam overall of transverse direction (X-direction) is more than 50mm below 200mm.

The length of the longitudinal direction (Y-direction) of boxed area 411 is more than 70% of the total length of the Y-direction of absorbent core 41, be preferably the length of more than 85%, and be less than 98%, be preferably the length of less than 95%, more specifically, be preferably the length of less than more than 70% 98%, be more preferably the length of less than more than 85% 95%.

The length of the transverse direction (X-direction) of boxed area 411 is more than 30% of the beam overall of the X-direction of absorbent core 41, be preferably the length of more than 50%, and be less than 90%, be preferably the length of less than 70%, more specifically, be preferably the length of less than more than 30% 90%, be more preferably the length of less than more than 50% 70%.

When boxed area 411 is in for disposable diaper, the total length being preferably longitudinal direction (Y-direction) is more than 100mm below 540mm, and the beam overall of transverse direction (X-direction) is more than 20mm below 140mm.

When non-boxed area 412 is in for disposable diaper, the length being preferably both ends longitudinal direction separately (Y-direction) of longitudinal direction (Y-direction) is more than 10mm below 150mm.

When non-boxed area 412 is in for disposable diaper, length along both sides transverse direction separately (X-direction) of longitudinal direction (Y-direction) is preferably more than 10mm below 40mm at veutro portion A, be preferably more than 10mm below 30mm at crotch C, be preferably more than 10mm below 40mm at drosal part B.

Carry out in more detail describing to the formation high grammes per square metre portion 43 of boxed area 411 and the size, grammes per square metre etc. in low grammes per square metre portion 44 (translot 44X, pod 44Y).

In diaper 1, as shown in Figure 2, when overlooking, high grammes per square metre portion 43 is formed as rectangular shape longer on longitudinal direction (Y-direction).In addition, in diaper 1, when overlooking high grammes per square metre portion 43, it is formed as rectangular shape, but corner also can be arc-shaped, also can be polygon-shaped, oval, their combination etc.

The high grammes per square metre portion 43 of diaper 1, when absorbent commodity is used in such as disposable diaper, as shown in Figure 6, the length L4 of its longitudinal direction (Y-direction) is more than 5mm, is preferably more than 15mm, and is below 30mm, be preferably below 25mm, more specifically, be preferably more than 5mm below 30mm, be more preferably more than 15mm below 25mm.In addition, the length L5 of its transverse direction (X-direction) is more than 3mm, is preferably more than 5mm, and is below 20mm, is preferably below 15mm, more specifically, is preferably more than 3mm below 20mm, and then is preferably more than 5mm below 15mm.

As shown in Figure 6, the width L6 of the translot 44X of the wire extended along transverse direction (X-direction) is greater than the width L7 of the pod 44Y of the wire extended along longitudinal direction (Y-direction), width L6/ width L7 is more than 110%, be preferably the width of more than 120%, and be less than 500%, be preferably the width of less than 300%, more specifically, be preferably the width of less than more than 110% 500%, be more preferably the width of less than more than 120% 300%.

The width L6 of the translot 44X of the wire extended along transverse direction (X-direction) is more than 2% of the length (L4) of the longitudinal direction (Y-direction) in high grammes per square metre portion 43, be preferably the length of more than 5%, and be less than 25%, be preferably the length of less than 20%, more specifically, be preferably the length of less than more than 2% 25%, be more preferably the length of less than more than 5% 20%.

The width L7 of the pod 44Y of the wire extended along longitudinal direction (Y-direction) is more than 2% of the length L5 of the transverse direction (X-direction) in high grammes per square metre portion 43, be preferably the length of more than 10%, and be less than 30%, be preferably the length of less than 25%, more specifically, be preferably the length of less than more than 2% 30%, be more preferably the length of less than more than 10% 25%.

The width L6 of the translot 44X of the wire extended along transverse direction (X-direction), when absorbent commodity is used for such as disposable diaper, for more than 0.5mm, be preferably more than 1mm, and be below 5mm, be preferably below 3mm, more specifically, be preferably more than 0.5mm below 5mm, be more preferably more than 1mm below 3mm.

The width L7 of the pod 44Y of the wire extended along longitudinal direction (Y-direction), when absorbent commodity is used for such as disposable diaper, for more than 0.01mm, be preferably more than 0.02mm, and be below 4.6mm, be preferably below 2.8mm, more specifically, be preferably more than 0.01mm below 4.6mm, be more preferably more than 0.02mm below 2.8mm.

In addition, width L4, L5 is the measured value of the position of the bottom of the depressed part (low grammes per square metre portion 44 (translot 44X, pod 44Y)) of absorber 4.

Preferably, translot 44X and pod 44Y are formed as that thickness is identical or translot 44X is thinner than pod 44Y, and less than more than 30% 90% of the thickness in low grammes per square metre portion 44 (translot 44X, pod 44Y) (thickness of the bottom part of low grammes per square metre portion 44 (translot 44X, pod the 44Y)) thickness that is high grammes per square metre portion 43.Specifically, the thickness of low grammes per square metre portion 44 (translot 44X, pod 44Y) is more than 1.5mm, is preferably more than 2.5mm, and be below 4.5mm, be preferably below 4.0mm, more specifically, be preferably more than 1.5mm below 4.5mm, be more preferably more than 2.5mm below 4.0mm.Carry out in more detail describing to the thickness of pod 44Y and the thickness of translot 44X, translot 44X is thinner than pod 44Y, the thickness of pod 44Y is more than 1.5mm, be preferably more than 2.5mm, and be below 4.5mm, be preferably below 4.0mm, more specifically, be preferably more than 1.5mm below 4.5mm, be more preferably more than 2.5mm below 4.0mm.And the thickness of translot 44X is more than 1.5mm, is preferably more than 2.5mm, and is below 4.5mm, be preferably below 4.0mm, more specifically, be preferably more than 1.5mm below 4.5mm, be more preferably more than 2.5mm below 4.0mm.The thickness in high grammes per square metre portion 43 is more than 2mm, is preferably more than 3mm, and is below 8mm, is preferably below 7mm, more specifically, is preferably more than 2mm below 8mm, is more preferably more than 3mm below 7mm.The thickness of non-boxed area 412 is identical with the thickness in high grammes per square metre portion 41.

In addition, the thickness of high grammes per square metre portion 43, low grammes per square metre portion 44 (translot 44X, pod 44Y) and non-boxed area 412 is that sample is cut into given size, pressurizes 10 minutes to measurement site with 5kPa, and is carrying out measuring immediately obtaining after heavy.Measurement site adopts for each sample to comprise more than 3 places at more than each any 1 place of veutro portion, crotch, drosal part, utilizes the meansigma methods of 2 diaper samples (measurement site is more than 6 places) to obtain thickness.Such as utilize sharp razor, cut off diaper 1 along the longitudinal direction (Y-direction) shown in Fig. 2 or transverse direction (X-direction), measure the cross section of the sample after this cut-out.The thickness of high grammes per square metre portion 43 and non-boxed area 412 is values of the thickest position finding in protuberance, and the thickness of low grammes per square metre portion 44 (translot 44X, pod 44Y) is the value of the thinnest position finding in the bottom of recess.When being difficult to be measured by naked eyes, such as, also can use microscope (KEYENCE company manufacture VHX-1000), to observe under the multiplying power of 20 ~ 50 times and to measure the cross section of the sample after above-mentioned cut-out.

Low grammes per square metre portion 44 (translot 44X, pod 44Y), when absorbent commodity is used in such as disposable diaper, spread efficiently in the wider range of absorber from the view point of making body fluid and utilize absorptive capacity and pliability efficiently, its grammes per square metre is more than 20% of the grammes per square metre in high grammes per square metre portion 43, is preferably more than 30%, and is less than 80%, be preferably less than 70%, more specifically, be preferably less than more than 20% 80%, be more preferably less than more than 30% 70%.

Specifically, the grammes per square metre of low grammes per square metre portion 44 (translot 44X, pod 44Y) is 100g/m ²above, 150g/m is preferably ²above, and be 500g/m ²below, 400g/m is preferably ²below, more specifically, 100g/m is preferably ²above 500g/m ²below, 150g/m is more preferably ²above 400g/m ²below.In addition, the grammes per square metre in high grammes per square metre portion 43 is 300g/m ²above, 350g/m is preferably ²above, and be 900g/m ²below, 800g/m is preferably ²below, more specifically, 300g/m is preferably ²above 900g/m ²below, so be preferably 350g/m ²above 800g/m ²below.The grammes per square metre of non-boxed area 412 is identical with the grammes per square metre in high grammes per square metre portion 41.

The grammes per square metre in high grammes per square metre portion 43 and low grammes per square metre portion 44 (translot 44X, pod 44Y) measures as follows.

The assay method > of < grammes per square metre

The assay method of the grammes per square metre of high grammes per square metre portion 43, low grammes per square metre portion 44 (translot 44X, pod 44Y) and non-boxed area 412 is as described below.

Use the single-blade razor that FEATHER company manufactures, the high grammes per square metre portion 43 along absorbent core 41 cuts off with the boundary line of low grammes per square metre portion 44 (translot 44X, pod 44Y).Use respectively electronic balance (the electronic balance GR-300 that A & D company manufactures, precision: after arithmetic point 4) measure 10 small pieces in high grammes per square metre portion 43 cutting off gained, obtain the average weight of 1 small pieces in high grammes per square metre portion 43.By the average area of calculated average weight divided by every 1 small pieces in high grammes per square metre portion 43, calculate the grammes per square metre in high grammes per square metre portion 43.The grammes per square metre of non-boxed area 412 also calculates in the mode identical with the grammes per square metre in high grammes per square metre portion 43.

Then, the boundary line above extended at longitudinal direction (Y-direction) along high grammes per square metre portion 43 with low grammes per square metre portion 44 (pod 44Y), according to length be 100mm, width is the design size of the width of low grammes per square metre portion 44 (pod 44Y), the single-blade razor using FEATHER company to manufacture, cuts out 5 small pieces in the low grammes per square metre portion 44 (pod 44Y) of fine strip shape.For obtained 5 small pieces, use electronic balance (the electronic balance GR-300 that A & D company manufactures respectively, precision: after arithmetic point 4) measure, and be averaged and obtain the average weight of 1 small pieces of low grammes per square metre portion 44 (pod 44Y).By the average area of calculated average weight divided by each small pieces of low grammes per square metre portion 44 (pod 44Y), and calculate the grammes per square metre of low grammes per square metre portion 44 (pod 44Y).For low grammes per square metre portion 44 (translot 44X), also calculate grammes per square metre in the mode identical with low grammes per square metre portion 44 (pod 44Y).

In the absorber 4 of diaper 1, high grammes per square metre portion 43 and non-boxed area 412 are formed as density roughly the same compared with low grammes per square metre portion 44 (translot 44X, pod 44Y) or more high density.

When absorbent commodity is used in such as disposable diaper, from the view point of liquid diffusion, the bendability of absorber, conformability, the density of low grammes per square metre portion 44 (translot 44X, pod 44Y) is more than 50% of the density in high grammes per square metre portion 43, be preferably more than 75%, and be less than 100%, be preferably less than 95%, more specifically, be preferably less than more than 50% 100%, be more preferably less than more than 75% 95%.

Specifically, the density of low grammes per square metre portion 44 (translot 44X, pod 44Y) is 0.05g/cm ³above, 0.07g/cm is preferably ³above, and be 0.15g/cm ³below, 0.13g/cm is preferably ³below, more specifically, 0.05g/cm is preferably ³above 0.15g/cm ³below, 0.07g/cm is more preferably ³above 0.13g/cm ³below.In addition, the density in high grammes per square metre portion 43 is 0.05g/cm ³above, 0.07g/cm is preferably ³above, and be 0.15g/cm ³below, 0.13g/cm is preferably ³below, more specifically, 0.05g/cm is preferably ³above 0.15g/cm ³below, 0.07g/cm is more preferably ³above 0.13g/cm ³below.The density of non-boxed area 412 is identical with the density in high grammes per square metre portion 41.

The grammes per square metre in the high grammes per square metre portion 43 obtained by said method, non-boxed area 412 and low-density portion 44 is calculated divided by the respective thickness obtained by said method by the density in high grammes per square metre portion 43, non-boxed area 412 and low grammes per square metre portion 44 (translot 44X, pod 44Y).

In addition, in diaper 1, between the low grammes per square metre portion 44 (translot 44X, pod 44Y) and coating member 42 of absorbent core 41, space 9 is formed with.That is, in absorber 4, the space 9 formed by the coating member 42 of absorbent core 41 and coated absorbent core 41 is formed.As mentioned above, in diaper 1, as shown in Figure 2 and Figure 3, low grammes per square metre portion 44 (translot 44X, pod 44Y) is formed at back-sheet 3 (the non-skin opposite face) side of absorbent core 41 on the whole with lattice-shaped, be configured with high grammes per square metre portion 43 in the position of grid hole, low grammes per square metre portion 44 (translot 44X, pod 44Y) is formed in the mode of surrounding high grammes per square metre portion 43.Therefore, in diaper 1, as shown in Figure 2 and Figure 3, the multiple space 9X formed by the translot 44X caved in face sheet 2 side and coating member 42 correspond to translot 44X and extend continuously respectively along transverse direction (X-direction), and the multiple space 9Y formed by the pod 44Y caved in face sheet 2 side and coating member 42 correspond to pod 44Y and extend continuously respectively along longitudinal direction (Y-direction).

In disposable diaper 1, as shown in Figure 3, between absorber 4 and face sheet 2, hydrophilic middle sheet material 5 is configured with.Specifically, face sheet 2 and form absorber 4 coating member 42 between, be configured with the middle sheet material 5 of rectangular shape longer on longitudinal direction (Y-direction).Middle sheet material 5 is like this so-called sublevel sheet material, and is formed the mode of the absorbent core 41 of absorber 4 to cover, from veutro portion A until drosal part B configure.The grammes per square metre of middle sheet material 5 (sublevel sheet material) is preferably 15g/m ²above 100g/m ²below.As middle sheet material (sublevel sheet material), the sheet material based on hydrophilic fibre (content of hydrophilic fibre is preferably the sheet material of more than 90 quality %) can be used, as this sheet material, such as, can enumerate paper, non-woven fabrics, screen cloth etc.

In diaper 1, absorbent core 41 is fixed via bonding agent with the coating member 42 of coated absorbent core 41, has fixing absorbent core 41 and the absorber 4 of coating member 42, fixes respectively via bonding agent with face sheet 2 and back-sheet 3.Especially in diaper 1, coating member 42 engages via non-skin side draught acceptor bonding agent 51U with the non-skin opposite face 41U of absorbent core 41, non-skin side draught acceptor bonding agent 51U on the transverse direction (X-direction) of diaper 1 discontinuously and be applied as straight line shape on longitudinal direction (Y-direction).Specifically, in diaper 1, as shown in Figure 3, use 1 coating member 42, to be turned back the both sides of coating member 42, the side edge part of coating member 42 is overlapped each other in the coated absorbent core 41 of mode of back-sheet 3 side of absorbent core 41.Therefore, in 1 coating member 42, the position being configured at the skin opposite face 41T side of absorbent core 41 becomes skin side cladding parts 421, and the position being configured at the non-skin opposite face 41U side of absorbent core 41 becomes non-skin side cladding parts 422.In addition, in diaper 1, as mentioned above, skin side cladding parts 421 and non-skin side cladding parts 422 are formed by 1 coating member 42, but also can be formed by 2 coating members separated separately.The non-skin side cladding parts 422 of back-sheet 3 side in coating member 42 is fixing via non-skin side absorbent core bonding agent 51U (with reference to Fig. 3 (a)) with the non-skin opposite face 41U of absorbent core 41.

In diaper 1, as shown in Fig. 3 (a), non-skin side absorbent core bonding agent 51U such as uses coating rifle to go up discontinuously and at longitudinal direction (Y-direction) on transverse direction (X-direction) and linearly applies in one, and entirety applies with appearing as striated.More than 0.5mm below 15mm is preferably at the upper adjacent absorbent core bonding agent 51U interval each other, non-skin side of transverse direction (X-direction).The grammes per square metre (coating amount) of the coating of non-skin side absorbent core bonding agent 51U is 0.5g/m ²above, 1g/m is preferably ²above, and be 15g/m ²below, 10g/m is preferably ²below, more specifically, 0.5g/m is preferably ²above 15g/m ²below, 1g/m is more preferably ²above 10g/m ²below.

Then, comprise being described to the absorber 4 included by diaper 1, namely by the manufacture method of the absorber 4 of high grammes per square metre portion 43 (high density), non-boxed area 412 (high density) and low grammes per square metre portion 44 (low-density) (translot 44X, pod 44Y) integrally formed absorbent core 41.

Fig. 7 represents an embodiment of the manufacture method of absorber 4 and wherein used manufacturing installation.The manufacturing installation of absorber 4 comprises: rotating cylinder 50, and it is along arrow R1 direction rotary actuation; Conduit 60, the absorbent material 45 comprising absorbing polymeric of the raw material as absorbent core 41 is supplied to the outer peripheral face of rotating cylinder 50 by it; Transfer roller 70, it is configured at the oblique below in the downstream of rotating cylinder 50, and along arrow R2 direction rotary actuation; Vacuum tank 65, it is configured between the conduit 60 circumferentially of rotating cylinder 50 and transfer roller 70; The guipure 75 as breathability parts of lamellar, it is to configure by the mode between vacuum tank 65 and rotating cylinder 50 and between transfer roller 70 and rotating cylinder 50; With suction conveyor 80, it is configured at the below of transfer roller 70.

As shown in Figure 7, rotating cylinder 50 is formed as cylindric, is subject to the power from motor prime movers, forms the parts of its outer peripheral face around horizontal rotational shaft.Being formed at the non-rotating part of the inner side (rotation shaft side) of rotating cylinder 50 can by the space 56 of inner pressure relief.Being connected with the known exhaust apparatus (not shown) such as drawing fan in space 56, by making this exhaust apparatus action, negative pressure can being maintained by space 56.On the other hand, in the space 57 and 58 of the inner side (rotation shaft side) of rotating cylinder 50, being connected with can the pipe arrangement (not shown) of air outside suction apparatus.

As shown in Figure 7, at the outer peripheral face of rotating cylinder 50, separate in direction r 1 and be equally spaced formed with multiple shape cylinder recess 51 corresponding with the shape of the absorbent core 41 that will manufacture.In the bottom surface sections of each cylinder recess 51, as shown in Figure 8, the web plate 52 being formed with multiple pore and metal or resinous difficult breathability parts 53 are configured with.Herein, difficult breathability parts 53 are arranged in mode outstanding on web plate 52, and configure in the mode that the shape and position with above-mentioned low grammes per square metre portion 44 (translot 44X, pod 44Y) is corresponding.That is, the breathability parts 53 corresponding to translot 44X are formed as larger than the width of the breathability parts 53 corresponding to pod 44Y.As shown in Figure 8, the region 54 only comprising the web plate 52 divided by the difficult breathability parts 53 configured in the above-described manner becomes the part corresponding to high grammes per square metre portion 43, and the region 55 only comprising the web plate 52 in the whole region, periphery of the part divided by difficult breathability parts 53 becomes the part corresponding to non-boxed area 412.In addition, the part not forming the outer peripheral face of the rotating cylinder 50 of a recess 51 is formed by the framework of the rotating cylinder 50 comprising metal rigid body, is non-breathability.

As shown in Figure 7, the end side of conduit 60 covers the outer peripheral face being positioned at the rotating cylinder 50 be maintained on the space 56 of negative pressure, has fibrous material gatherer in another not shown side.Fibrous material gatherer such as comprises destructor, the wood pulp of lamellar is pulverized and is formed as separating fiber paper pulp by this destructor, be fed through in conduit by this solution fiber paper pulp (fibrous material), fibrous material gatherer is provided with the absorbing polymeric introduction part importing absorbing polymeric in the midway of conduit 60.

Transfer roller 70 comprises the peripheral part of the cylindrical shape with breathability, and is subject to the power from motor prime movers, and its peripheral part is rotated in R2 direction.At the non-rotating part of the inner side (rotation shaft side) of transfer roller 70, being formed can by the space 71 of inner pressure relief.Being connected with the known exhaust apparatus (not shown) such as drawing fan in space 71, by making this exhaust apparatus action, negative pressure can being maintained by space 71.

Vacuum tank 65, on the direction of rotation R1 of rotating cylinder 50, is configured between the end of downstream side 601 of conduit 60 and transfer roller 70.Vacuum tank 65 has the shape of box like, and has the peristome to rotating cylinder 50 direction opening at the position relative with rotating cylinder 50.Vacuum tank 65 is connected with the known exhaust apparatus (not shown) such as drawing fan via exhaustor 67, by the action of this exhaust apparatus, can be maintained negative pressure by vacuum tank 65.

Guipure 75 connects to ring-type by the gas-permeable strip of the band shape with mesh and is formed, and is guided and move continuously on the path of regulation by multiple free roll and transfer roller 70.Guipure 75 is driven by the rotation of transfer roller 70.Guipure 75, during the front by the above-mentioned peristome of vacuum tank 65, contacts with the outer peripheral face of rotating cylinder 50, and transfer roller 70 and rotating cylinder 50 immediate closest near portion, leave from the outer peripheral face of rotating cylinder 50 and shift to transfer roller 70.

Suction conveyor 80 comprises: the gas-permeable strip 83 of ring-type, and it is set up in driven roller 81 and driven voller 82; With vacuum tank 84, it is configured at across gas-permeable strip 83 position relative with transfer roller 70.

Then, the method using the manufacturing installation of above-mentioned absorber to manufacture absorber 4 (absorbent core 41) is continuously described.

First, make to be connected to respectively the space 56 in rotating cylinder 50 and the exhaust apparatus action in vacuum tank 65 and make to become negative pressure in the space 56 in rotating cylinder 50 and vacuum tank 65.Its reason is, by making in this way to become negative pressure in space 56, produces air stream absorbent material 45 being delivered to the outer peripheral face of rotating cylinder 50 in conduit 60.Then, rotating cylinder 50 and transfer roller 70 are rotated, in addition, make suction conveyor 80 action.Then, making the action of above-mentioned fibrous material gatherer, being supplied to first separating fine paper pulp (fibrous material) in conduit 60.Paper pulp (fibrous material) becomes along with the air stream of flowing in conduit 60 state of dispersing, and the outer peripheral face to rotating cylinder 50 supplies.

During the part covered by conduit 60 carries out carrying, paper pulp (fibrous material) is sucked up to the cylinder recess 51 of rotating cylinder 50.As shown in Figure 9, paper pulp (fibrous material) is piled up on each region 54 of a recess 51 and the web plate 52 in region 55 gradually.The deposit 410a of the paper pulp (fibrous material) obtained in this way becomes the part of the layer 410 corresponding to paper pulp monomer.

Then, when being supplied to through separating fine paper pulp (fibrous material) in conduit 60, and then during supply absorbing polymeric, this absorbent material 45 becomes the state of dispersing along with the air stream flowed conduit 60 in, and the outer peripheral face to rotating cylinder 50 supplies.

Then, during the part conveying covered by conduit 60, at the cylinder recess 51 of rotating cylinder 50, absorbent material (mixture of fibrous material and absorbing polymeric) 45 is sucked up on deposit 410a.As shown in Figure 9, absorbent material 45 is piled up on the deposit 410a that the web plate 52 in each region 54 of cylinder recess 51 and region 55 piles up gradually.In the deposit 46 obtained in this way, the accumulating amount that absorbent material 45 is piled up in the absorbent material 45 of position (the difficult corresponding portion of the breathability parts 53) 46a that difficult breathability parts 53 obtain is relatively less, the accumulating amount of the absorbent material 45 of other position (corresponding portion, region 54) 46b and position (corresponding portion, region 55) 46c is relatively many, has deposit 46.

Then, when rotating cylinder 50 rotates, when cylinder recess 51 arrives the relative position of vacuum tank 65, the deposit 46 in cylinder recess 51 becomes by the suction from vacuum tank 65 state being adsorbed in guipure 75.Deposit 46 in cylinder recess 51 is transported to the front closest to portion of transfer roller 70 and rotating cylinder 50 with this state, at this closest near portion, by the suction from transfer roller 70 side, keep the state being adsorbed in guipure 75 from cylinder recess 51 demoulding, shift on transfer roller 70.

So, the deposit 46 with sag and swell on transfer roller 70 is transferred in the lump with guipure 75, keep the state of the guipure 75 be adsorbed on transfer roller 70, be transported to and the junction of suction conveyor 80 (lowest end of transfer roller 70), in this junction, shifted on suction conveyor 80 by the suction of vacuum tank 84.

In the manufacturing installation of the absorber of present embodiment, as shown in Figure 7, comprise cotton paper, the coating member 42 of hydrophilic non-woven be fed to mounting deposit 46 before suction conveyor 80 on, deposit 46 is transferred on coating member 42.Then, utilize the folding coating member 42 of turnover board (not shown) further and after utilizing the coated deposit 46 of coating member 42, cut off by the deposit 46 of the coated state of coating member 42 at predetermined intervals, manufacture the absorber precursor 49 cutting into the size of 1 absorber continuously.

Then, in the manufacturing installation of the absorber of present embodiment, the absorber precursor 49 utilizing pressing mechanism 90 to compress to obtain in this way, makes the thickness product polar region of the deposit 46 of formation absorber precursor 49 reduce, thus obtains the absorber 4 (absorbent core 41) of target.As shown in Figure 7, pressing mechanism 90 is configured to: the pair of rolls 91,92 comprising the surface smoothing of at least one party, can pressurize, compress in a thickness direction the pressurized thing be directed between roller 91,92 from upper and lower surface.

When utilizing pressing mechanism 90 to compress deposit 46, relatively many and position (corresponding portion, the region 54) 46b that thickness is larger and position (corresponding portion, region 55) 46c of absorbent material, compared with and the position that thickness is less (the difficult corresponding portion of breathability parts 53) 46a relatively less with absorbent material 45, be subject to stronger compression.Consequently, in the absorber 4 (absorbent core 41) utilizing above-mentioned manufacturing installation to produce, position (corresponding portion, region 54) 46b (protuberance) and position (corresponding portion, the region 55) 46c of deposit 46 become the relatively high high grammes per square metre portion 43 of absorbent core 41 Midst density and non-boxed area 412, and position (the difficult corresponding portion of the breathability parts 53) 46a (recess) of deposit 46 becomes the relatively low low grammes per square metre portion of absorbent core 41 Midst density 44 (translot 44X, pod 44Y).

The formation material of the disposable diaper 1 of present embodiment is described.

As back-sheet 3, three-dimensional gauffer formation sheet material 62, as long as the material in the absorbent commodities such as disposable diaper usually can be used in, just can use with no particular limitation.Such as back-sheet 3, the laminated body etc. of resin molding or resin molding and non-woven fabrics can be used.As three-dimensional gauffer formation sheet material 62, the thin film of retractility, non-woven fabrics, fabric or their laminated sheet etc. can be used.

As pull stap 7, as long as the material in the absorbent commodities such as disposable diaper usually can be used in, just can use with no particular limitation.Such as can use hook face (sunny side) parts etc. in " Magic Tape (registered trade mark) " (manufacture of Kuraray (Kuraray) company), " Quicklon (registered trade mark) " (manufacture of YKK company), " Magi Cloth (registered trade mark) " (manufacture of Kanebo Bell Touch company) etc.

As the absorbent core 41 forming absorber 4, the granule of absorbing polymeric can be used to be held in the material obtained in the aggregation of the fibers such as paper pulp fiber.As the coating member 42 forming absorber 4, can hydrophilic sheet be used, such as, comprise the cored sheet material etc. of the thin paper (cotton paper, tissue paper) of water penetration, the non-woven fabrics of water penetration.

As elastomeric element 61, leg elastic members 63 and waist elastic members 64 that three-dimensional gauffer is formed, the wire loft material of the polyethylene-alphaolefin copolymer comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-ethylene etc. etc. can be used.

As bonding agent (non-skin side absorbent core bonding agent 51U etc.), such as, as long as the material in the absorbent commodities such as disposable diaper usually can be used in, just can uses with no particular limitation, can hot-melt adhesive be used.As hot-melt adhesive, such as, can enumerate the hot-melt adhesive of the block copolymer classes such as styrene isoprene styrene block copolymer (SIS) (SIS), styrene butadiene styrene block copolymer (SBS) (SBS), styrene-ethylene-butylene-styrene copolymer (SEBS).

Action effect when using the disposable diaper 1 of the embodiment of the invention described above is described.

As shown in Figure 2 and Figure 3, diaper 1 has boxed area 411, and this boxed area 411 comprises translot 44X, pod 44Y and is configured at the position and high grammes per square metre portion 43 longer on longitudinal direction (Y-direction) that are marked off by translot 44X, pod 44Y.Because use the absorbent core 41 with this kind high grammes per square metre portion 43 longer on longitudinal direction (Y-direction), so when during the wearing of diaper 1, when wearer is drained, body fluid easily flows along longitudinal direction (Y-direction).And, as shown in Figure 2 and Figure 3, in the absorbent core 41 of the absorber 4 that diaper 1 has, translot 44X is identical with the thickness of pod 44Y, or translot 44X is thinner than pod 44Y, and the width of translot 44X is greater than the width of pod 44Y when overlooking, therefore, as shown in Figure 10, compared with pod 44Y, body fluid is easier to flow along translot 44X.Like this, as shown in Figure 10, utilize the high grammes per square metre portion 43 longer on longitudinal direction (Y-direction) of boxed area 411, body fluid is easily flowed along longitudinal direction (Y-direction), and then, utilize translot 44X, body fluid is easily above flowed at transverse direction (X-direction) along translot 44X, thus body fluid can be made to spread efficiently in the wider range of absorber 4.Thereby, it is possible to utilize the absorptive capacity of the wider range of absorber 4 efficiently.Especially in diaper 1, as shown in Figure 3, in absorbent core 41, skin opposite face side is smooth, and non-skin opposite face side is formed from the protrusion of face sheet 2 side direction back-sheet 3 side protuberance and the depressed part from back-sheet 3 side direction face sheet 2 side depression, therefore, above-mentioned effect is played further.

In addition, as shown in Figure 5, the absorbent core 41 of diaper 1 has boxed area 411 and non-boxed area 412, and the overall width W of veutro portion A _awith the overall width W of drosal part B _bidentical, the width W of the veutro portion A of boxed area 411 _a1with the width W of drosal part B _b1identical.And as shown in Fig. 2, Fig. 5, non-boxed area 412 entirety is formed as the shape of the inside side's shrinking of part depending on veutro portion A from longitudinal direction (Y-direction) central part, and the entire area of drosal part B is greater than the entire area of veutro portion A.Therefore, when using diaper 1 under supine position, time especially to neonate use diaper 1, body fluid can be made to diffuse to the absorbent core 41 of drosal part B efficiently.

In addition, as shown in Fig. 3 (a), in diaper 1, the non-skin side draught acceptor bonding agent 51U engaged with the non-skin opposite face 41U of absorbent core 41 by coating member 42, is above interrupted at the transverse direction (X-direction) of diaper 1 and is applied as straight line shape on longitudinal direction (Y-direction).Like this, non-skin side draught acceptor bonding agent 51U is applied as straight line shape for the absorbent core 41 with high grammes per square metre portion 43 longer on longitudinal direction (Y-direction) on longitudinal direction (Y-direction), therefore, during the wearing at diaper 1, when wearer is drained, the flowing of body fluid is restricted, and easily flows along longitudinal direction (Y-direction).

In addition, as shown in Figure 3, diaper 1 is formed with the layer 410 of paper pulp monomer at the position near non-skin opposite face side of absorbent core 41.Therefore, it is possible to play following effect: body fluid can be made successfully to advance in absorbent core 41, body fluid can be made to spread efficiently in the wider range of absorber 4, and the absorptive capacity of the wider range of absorber 4 can be utilized efficiently.

In addition, as shown in Figure 3, the face sheet 2 of diaper 1 has the multiple protuberances 21 and the recess 22 adjacent with protuberance 21 that protrude to skin opposite face side, and the skin opposite face side of face sheet 2 becomes sag and swell.Therefore, during dressing, after wearer is drained, also can form gap between the skin of wearer and face sheet 2, thus breathability promotes, skin sense of touch promotes.

In addition, as shown in Figure 3, the middle sheet material 5 (sublevel sheet material) of diaper 1 is configured between face sheet 2 and coating member 42, therefore plays and makes liquid successfully be transferred to the effect of absorber 4.

The disposable diaper of one embodiment of absorbent commodity of the present invention, not by any restriction of the disposable diaper of above-mentioned embodiment, can suitably change.

Such as in the disposable diaper 1 of above-mentioned embodiment, as shown in Figure 3, absorbent core 41 as shown in Figure 3, be formed in non-skin opposite face side from the protrusion of face sheet 2 side direction back-sheet 3 side protuberance and the depressed part from back-sheet 3 side direction face sheet 2 side depression, but non-skin opposite face side also can be smooth.

In addition, in the disposable diaper 1 of above-mentioned embodiment, as shown in Figure 3, between absorber 4 and face sheet 2, be configured with hydrophilic middle sheet material 5, but also can not configure intermediate material 5.

In addition, in the disposable diaper 1 of above-mentioned embodiment, as shown in Figure 4, face sheet 2 comprises ground floor 23 and the second layer 24 of tablet, the ground floor 23 of the skin opposite face of formation face sheet 2 has outstanding to skin opposite face side and inside becomes empty multiple protuberances 21, and the second layer 24 forming the non-skin opposite face of face sheet 2 is plane.Also this kind of face sheet 2 can be replaced, and use the general non-woven fabrics of the flat condition used in the absorbent commodities such as disposable diaper, also can be as shown in figure 11, use comprises one deck fiber assembly, the inside of protuberance 21 becomes solid, and protuberance 21 and recess 22 extend and face sheet alternately arranged side by side on transverse direction (X-direction) along longitudinal direction (Y-direction) respectively.

In addition, also above-mentioned face sheet 2 can be replaced, and the concavo-convex sheet material obtained as follows is used for face sheet, namely, by comprise heat-shrinkable fiber the first fibrous layer and comprise not thermal contraction in fact fiber or the contraction of above-mentioned heat-shrinkable fiber start temperature in fact the fiber of not thermal contraction the second fibrous layer lamination and after engaging partly, by hot blast process, the first fibrous layer is shunk, thus forms concavo-convex sheet material.In this face sheet, the part of the second fibrous layer beyond itself and the first fibrolaminar junction surface is outstanding and form protuberance, and on the other hand, above-mentioned junction surface forms recess.Heat-shrinkable fiber is preferably potential crimp property fiber.As this kind of concavo-convex sheet material, there is sheet material described in Japanese Unexamined Patent Publication 2002-187228 publication, Japanese Unexamined Patent Publication 2003-250836 publication, Japanese Unexamined Patent Publication 2004-166849 publication, Japanese Unexamined Patent Publication 2004-202890 publication etc.

In addition, in the disposable diaper 1 of above-mentioned embodiment, as shown in Fig. 2, Fig. 5, the absorbent core 41 of absorber 4 has the boxed area 411 of rectangle longer on longitudinal direction (Y-direction), and the non-boxed area 412 configured throughout the periphery of boxed area 411.Also the absorbent core 41A ~ 41D shown in Figure 12 ~ Figure 15 can be had to replace the absorbent core 41 of this kind of absorber 4.About the absorbent core 41A ~ 41D shown in Figure 12 ~ Figure 15, for not specified aspect, suitably apply the explanation that the absorbent core 41 included by above-mentioned diaper 1 is described in detail.In addition, in Figure 12 ~ Figure 15, identical symbol is marked to the parts identical with Fig. 5.Absorbent core 41A ~ 41D shown in Figure 12 ~ Figure 15 is that the both side edges of veutro portion A and the both side edges of drosal part B are more stretched out to transverse direction (X-direction) foreign side than the both side edges of crotch C respectively respectively, have and be formed as the boxed area 411 that thin shape inwardly just received by longitudinal direction (Y-direction) central part on the whole, and have and be formed as the non-boxed area 412 that thin shape inwardly just received by longitudinal direction (Y-direction) central part.In addition, also the absorbent core formed as follows can be used to replace the absorbent core 41 of above-mentioned absorber 4, in this absorbent core, not there is non-boxed area 412, the translot 44X of multiple wire extends respectively in the total length of transverse direction (X-direction), the pod 44Y of multiple wire extends respectively in the total length of longitudinal direction (Y-direction).

The boxed area 411 of the absorbent core 41A shown in Figure 12 is more specifically described.In absorbent core 41A, as shown in figure 12, the drosal part 411b of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 5 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 4 row of longitudinal direction (Y-direction).In addition, as shown in figure 12, the crotch 411c of boxed area 411 is formed as follows: high grammes per square metre portion 43 is configured with the massive structure of 3 and formation regularly on transverse direction (X-direction), regularly at upper configuration 7 row of longitudinal direction (Y-direction).In addition, as shown in figure 12, the veutro portion 411a of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 5 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 4 row of longitudinal direction (Y-direction).In the boxed area 411 of absorbent core 41A, as shown in figure 12,4 in 6 pod 44Y extended along longitudinal direction (Y-direction) respectively from veutro portion A until the configuration of drosal part B linearity.

The boxed area 411 of the absorbent core 41B shown in Figure 13 is more specifically described.In absorbent core 41B, as shown in figure 13, the drosal part 411b of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 4 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 4 row of longitudinal direction (Y-direction).In addition, as shown in figure 13, the crotch 411c of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 3 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 7 row of longitudinal direction (Y-direction).In addition, as shown in figure 13, the veutro portion 411a of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 4 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 4 row of longitudinal direction (Y-direction).In the boxed area 411 of absorbent core 41B, as shown in figure 13, arbitrary pod 44Y extended along longitudinal direction (Y-direction) all less than from veutro portion A until drosal part B linearity configuration.

The boxed area 411 of the absorbent core 41C shown in Figure 14 is more specifically described.In absorbent core 41C, as shown in figure 14, the drosal part 411b of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 5 and the massive structure formed regularly on transverse direction (X-direction), configuration 3 row on longitudinal direction (Y-direction) regularly, and then high grammes per square metre portion 43 is configured with massive structure configuration 1 row on longitudinal direction (Y-direction) regularly of 4 and formation regularly on transverse direction (X-direction).In addition, as shown in figure 14, the crotch 411c of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 3 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 7 row of longitudinal direction (Y-direction).In addition, as shown in figure 14, the veutro portion 411a of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 4 and the massive structure formed regularly on transverse direction (X-direction), configuration 1 row on longitudinal direction (Y-direction) regularly, and then high grammes per square metre portion 43 is configured with massive structure configuration 3 row on longitudinal direction (Y-direction) regularly of 5 and formation regularly on transverse direction (X-direction).In the boxed area 411 of absorbent core 41C, as shown in figure 14, arbitrary pod 44Y extended along longitudinal direction (Y-direction) all less than from veutro portion A until drosal part B linearity configuration.

The boxed area 411 of the absorbent core 41D shown in Figure 15 is more specifically described.In absorbent core 41D, as shown in figure 15, the drosal part 411b of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 6 and the massive structure formed regularly on transverse direction (X-direction), configuration 3 row on longitudinal direction (Y-direction) regularly, and then high grammes per square metre portion 43 is configured with massive structure configuration 1 row on longitudinal direction (Y-direction) regularly of 4 and formation regularly on transverse direction (X-direction).In addition, as shown in figure 15, the crotch 411c of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 2 and the massive structure that formed regularly on transverse direction (X-direction), regularly at upper configuration 7 row of longitudinal direction (Y-direction).In addition, as shown in figure 15, the veutro portion 411a of boxed area 411 is formed as follows: the high grammes per square metre portion 43 marked off by translot 44X, pod 44Y is configured with 4 and the massive structure formed regularly on transverse direction (X-direction), configuration 1 row on longitudinal direction (Y-direction) regularly, and then high grammes per square metre portion 43 is configured with massive structure configuration 3 row on longitudinal direction (Y-direction) regularly of 6 and formation regularly on transverse direction (X-direction).In the boxed area 411 of absorbent core 41D, as shown in figure 15,3 in 7 pod 44Y extended along longitudinal direction (Y-direction) respectively from veutro portion A until the configuration of drosal part B linearity.

In addition, in the disposable diaper 1 of above-mentioned embodiment, as shown in Figure 2, form the low grammes per square metre portion 44 of the absorbent core 41 of absorber 4, the pod 44Y of the wire utilizing the translot 44X of the wire extended along transverse direction (X-direction) and extend along longitudinal direction (Y-direction), be formed as lattice-shaped on the whole, but not in the shape limiting this lattice-shaped.

In addition, as shown in Figure 1, the disposable diaper 1 of above-mentioned embodiment is the disposable diaper of deploying type, but also can be the disposable diaper of pants type.

About above-mentioned embodiment, further following absorbent commodity is disclosed.

< 1 > absorbent commodity, its absorber that there is the face sheet being configured in skin opposite face side, the back-sheet being configured in non-skin opposite face side and be configured in the lengthwise between these two sheet materials, the feature of this absorbent commodity is:

Above-mentioned absorber has the absorbent core containing absorbing polymeric,

Above-mentioned absorbent core has boxed area, and this boxed area comprises: the pod that the longitudinal direction along absorbent commodity extends; Along the translot that the transverse direction of absorbent commodity extends; With grammes per square metre in the position marked off by this pod and this translot than each the high grammes per square metre portion of much higher the lengthwise in position of this pod and this translot,

The above-mentioned high grammes per square metre portion of above-mentioned absorbent core is integrally formed with the low grammes per square metre portion be made up of the position laying respectively at above-mentioned translot and above-mentioned pod,

The thickness of above-mentioned pod is identical with the thickness of above-mentioned translot, or the thickness of this pod of Thickness Ratio of this translot is thin, and when overlooking, the width of this translot is wider than the width of this pod.

The absorbent commodity that < 2 > records as above-mentioned < 1 >, wherein, the skin opposite face side of above-mentioned absorbent core is smooth, is formed from the protrusion of face sheet side direction back-sheet side protuberance and the depressed part from back-sheet side direction face sheet side depression in non-skin opposite face side.

The absorbent commodity that < 3 > records as above-mentioned < 1 > or < 2 >, wherein, the non-boxed area that above-mentioned absorbent core has above-mentioned boxed area and configures throughout the periphery of this boxed area, the overall width in veutro portion is identical with the overall width of drosal part, and the width of above-mentioned boxed area is identical with drosal part in veutro portion.

The absorbent commodity that < 4 > records any one of above-mentioned < 1 > to < 3 >, wherein, above-mentioned absorber has the coating member of above-mentioned absorbent core and coated absorbent core, the non-skin opposite face of this coating member and above-mentioned absorbent core is engaged by non-skin side draught acceptor bonding agent, and this non-skin side draught acceptor bonding agent is interrupted and on longitudinal direction, applies shape in alignment on the transverse direction of above-mentioned absorbent commodity.

The absorbent commodity that < 5 > records any one of above-mentioned < 1 > to < 4 >, wherein, above-mentioned absorbent core is formed with the layer of paper pulp monomer at the position by non-skin opposite face side.

The absorbent commodity that < 6 > records any one of above-mentioned < 1 > to < 5 >, wherein, above-mentioned face sheet has the multiple protuberance and the recess adjacent with this protuberance that protrude to skin opposite face side, and the skin opposite face side of this face sheet is formed as sag and swell.

The absorbent commodity that < 7 > records any one of above-mentioned < 1 > to < 6 >, wherein, between above-mentioned absorber and above-mentioned face sheet, hydrophilic middle sheet material is configured with.

The absorbent commodity that < 8 > records any one of above-mentioned < 1 > to < 7 >, wherein, in above-mentioned absorbent commodity, the left and right sides edge in veutro portion and the left and right sides edge of drosal part more extend than the left and right sides edge of crotch respectively outside transverse direction, the left and right sides edge of crotch bends to arc-shaped inside transverse direction, there is the shape of longitudinal direction central part shrinking to the inside as a whole, above-mentioned face sheet and above-mentioned back-sheet extend laterally from the left and right sides edge of above-mentioned absorber and front and back both side edges respectively, the size of the transverse direction of this face sheet is less than the size of the transverse direction of this back-sheet.

The absorbent commodity that < 9 > records any one of above-mentioned < 1 > to < 8 >, wherein, the both sides along longitudinal direction of above-mentioned absorbent commodity each in, configure at the sidepiece of above-mentioned face sheet and be fixed with the three-dimensional gauffer formation sheet material with the elastomeric element fixed with elongation state on longitudinal direction, form a pair three-dimensional gauffer thus, the both sides along longitudinal direction of this absorbent commodity each in, multiple leg elastic members that leg creases is formed are configured to elongation state on longitudinal direction, leg creases is formed by the contraction of this leg elastic members, in the longitudinal direction end of the drosal part side of this absorbent commodity, waist gauffer formation waist elastic members is configured to elongation state in the transverse direction, waist gauffer is formed by the contraction of this waist elastic members.

The absorbent commodity that < 10 > records as above-mentioned < 4 >, wherein, utilize the above-mentioned coating member as the hydrophilic sheet of liquid permeability to be coated on the above-mentioned absorbent core of liquid retainability longer on longitudinal direction, thus form above-mentioned absorber.

The absorbent commodity that < 11 > records any one of above-mentioned < 1 > to < 10 >, wherein, the above-mentioned boxed area of above-mentioned absorbent core forms lattice-shaped by utilizing above-mentioned translot and above-mentioned pod entirety, and in the position that translot and the pod by these linearities marks off, configures above-mentioned high grammes per square metre portion respectively and formed.

The absorbent commodity that < 12 > records any one of above-mentioned < 3 > to < 11 >, wherein, above-mentioned absorbent core has the low grammes per square metre portion formed by above-mentioned translot and above-mentioned pod, the above-mentioned high grammes per square metre portion of above-mentioned absorbent core and this low grammes per square metre portion integrally formed, above-mentioned non-boxed area also with this high grammes per square metre portion and this low grammes per square metre portion integrally formed.

The absorbent commodity that < 13 > records as above-mentioned < 12 >, wherein, the above-mentioned low grammes per square metre portion of above-mentioned absorbent core is on the thickness direction of above-mentioned absorbent commodity, bias is in above-mentioned face sheet side, and this face sheet side of this absorbent core is formed as smooth.

The absorbent commodity that < 14 > records any one of above-mentioned < 1 > to < 13 >, wherein, the longitudinal direction total length of above-mentioned absorbent core is more than 250mm below 550mm, and transverse direction beam overall is more than 50mm below 200mm.

The absorbent commodity that < 15 > records any one of above-mentioned < 1 > to < 14 >, wherein, the longitudinal direction length of above-mentioned boxed area is the length of less than more than 70% 98% of the longitudinal direction total length of above-mentioned absorbent core, or the length of less than more than 85% 95%.

The absorbent commodity that < 16 > records any one of above-mentioned < 1 > to < 15 >, wherein, the transverse direction length of above-mentioned boxed area is the length of less than more than 30% 90% of the transverse direction beam overall of above-mentioned absorbent core, or the length of less than more than 50% 70%.

The absorbent commodity that < 17 > records any one of above-mentioned < 1 > to < 16 >, wherein, the longitudinal direction total length of above-mentioned boxed area is more than 100mm below 540mm, and transverse direction beam overall is more than 20mm below 140mm.

The absorbent commodity that < 18 > records any one of above-mentioned < 3 > to < 17 >, wherein, the both ends of the longitudinal direction of above-mentioned non-boxed area longitudinal direction length is separately more than 10mm below 150mm.

The absorbent commodity that < 19 > records any one of above-mentioned < 3 > to < 18 >, wherein, both sides along the longitudinal direction transverse direction length separately of above-mentioned non-boxed area, be more than 10mm below 40mm in veutro portion, being more than 10mm below 30mm in crotch, is more than 10mm below 40mm at drosal part.

The absorbent commodity that < 20 > records any one of above-mentioned < 1 > to < 19 >, wherein, above-mentioned high grammes per square metre portion is formed as rectangle when overlooking, or quadrangle becomes arc-shaped, or it is polygon-shaped, oval or their combination.

The absorbent commodity that < 21 > records any one of above-mentioned < 1 > to < 20 >, wherein, the width of above-mentioned translot is wider than the width of above-mentioned pod, the width of the width/above-mentioned pod of above-mentioned translot is the scope of less than more than 110% 500%, or the scope of less than more than 120% 300%.

The absorbent commodity that < 22 > records any one of above-mentioned < 1 > to < 21 >, wherein, the width of above-mentioned translot is the length of less than more than 2% 25% of the longitudinal direction length in above-mentioned high grammes per square metre portion, or the length of less than more than 5% 20%.

The absorbent commodity that < 23 > records any one of above-mentioned < 1 > to < 22 >, wherein, the width of above-mentioned pod is the length of less than more than 2% 30% of the transverse direction length in above-mentioned high grammes per square metre portion, or the length of less than more than 10% 25%.

The absorbent commodity that < 24 > records any one of above-mentioned < 12 > to < 23 >, wherein, above-mentioned translot is formed with identical thickness with above-mentioned pod, and the thickness in above-mentioned low grammes per square metre portion is less than more than 30% 90% of the thickness in above-mentioned high grammes per square metre portion.

The absorbent commodity that < 25 > records any one of above-mentioned < 12 > to < 24 >, wherein, the grammes per square metre in above-mentioned low grammes per square metre portion is less than more than 20% 80% of the grammes per square metre in above-mentioned high grammes per square metre portion, or less than more than 30% 70%.

The absorbent commodity that < 26 > records any one of above-mentioned < 12 > to < 25 >, wherein, in above-mentioned absorber, above-mentioned high grammes per square metre portion and above-mentioned non-boxed area are compared with above-mentioned low grammes per square metre portion, and density is identical or be formed as high density.

The absorbent commodity that < 27 > records any one of above-mentioned < 12 > to < 26 >, wherein, the density in above-mentioned low grammes per square metre portion is less than more than 50% 100% of the density in above-mentioned high grammes per square metre portion, or less than more than 75% 95%.

The absorbent commodity that < 28 > records any one of above-mentioned < 12 > to < 27 >, wherein, between the above-mentioned low grammes per square metre portion and above-mentioned coating member of above-mentioned absorbent core, space is formed with.

The absorbent commodity that < 29 > records any one of above-mentioned < 7 > to < 28 >, wherein, between above-mentioned face sheet and the above-mentioned coating member forming above-mentioned absorber, be configured with the above-mentioned middle sheet material of rectangle longer on longitudinal direction.

The absorbent commodity that < 30 > records any one of above-mentioned < 7 > to < 29 >, wherein, above-mentioned middle sheet material is sublevel sheet material, to cover the mode being formed the above-mentioned absorbent core of above-mentioned absorber, from veutro portion until drosal part configure, the grammes per square metre of this middle sheet material is 15g/m ²above 100g/m ²below.

The absorbent commodity that < 31 > records as above-mentioned < 30 >, wherein, as above-mentioned middle sheet material, use the sheet material (content of hydrophilic fibre is preferably the sheet material of more than 90 quality %) based on hydrophilic fibre, as this sheet material based on hydrophilic fibre, make paper using, non-woven fabrics, screen cloth.

The absorbent commodity that < 32 > records any one of above-mentioned < 1 > to < 31 >, wherein, above-mentioned absorbent commodity is the disposable diaper of deploying type.

The absorbent commodity that < 33 > records any one of above-mentioned < 1 > to < 31 >, wherein, above-mentioned absorbent commodity is the disposable diaper of pants type.

Embodiment

Below, embodiment is utilized to be described in more detail the present invention.But scope of the present invention is not by any restriction of this embodiment.

[embodiment 1]

Use the device shown in Fig. 7 to manufacture absorber 4, produce the disposable diaper 1 shown in Fig. 2.Carry out in detail describing to face sheet 2, as face sheet, use the structure roughly the same with the concavo-convex face sheet of 2 Rotating fields shown in Fig. 4, as the upper and lower of this face sheet, use grammes per square metre to be 18g/m respectively ²the hot-wind nonwoven cloth of liquid permeability, for this upper strata, be applied with concavo-convex by embossing processing to this hot-wind nonwoven cloth.Apply concavo-convex after the grammes per square metre on upper strata be 23.5g/m ².Protuberance 21 and the junction surface 25 (recess 22) of face sheet are configured to (sawtooth) lattice-shaped that interlocks, the height h of protuberance 21 is 1.1mm, bottom size L1 along the protuberance 21 of Y-direction is 2.5mm, the bottom size L2 of protuberance 21 is in X direction 3.0mm, and the floor space of protuberance 21 is 7.5mm ².In addition, the length L3 in the X-direction at the junction surface 25 of recess 22 and the length in Y-direction are 1.0mm.

Then, carry out in detail describing to absorber 4, the total length of the Y-direction of the boxed area 411 of absorbent core 41 is 332mm, and the beam overall of X-direction is 50mm.The length of the Y-direction of the end of the Y-direction of the non-boxed area 412 of absorbent core 41 is 370mm, and the length of the X-direction of the sidepiece of veutro portion A is the length of the X-direction of the sidepiece of 120mm, crotch C is 70mm, and the length of the X-direction of the sidepiece of drosal part B is 100mm.The length L4 forming the Y-direction in the high grammes per square metre portion 43 of boxed area 411 is 20mm, and the length L5 of X-direction is 10mm.The width L6 forming the translot 44X of boxed area 411 is 2.2mm, and the width L7 of pod 44Y is 2mm.The grammes per square metre forming the low grammes per square metre portion 44 (translot 44X, pod 44Y) of boxed area 411 is 292g/m ², form the high grammes per square metre portion 43 of boxed area 411 and the respective grammes per square metre of non-boxed area 412 is 570g/m ².

Then, carry out in detail describing to bonding agent 5, the coating density (coating amount) of the skin side absorbent core bonding agent 51T of helical form coating is 2.5g/cm ³, the coating density (coating amount) of the non-skin side absorbent core bonding agent 51U of striated coating is 2.0g/cm ³.

[embodiment 2]

In embodiment 2, the width L6 forming the translot 44X of boxed area 411 is 2.5mm, and the width L7 of pod 44Y is 2mm, in addition, makes the disposable diaper of embodiment 2 in the same manner as example 1.

[comparative example 1]

About the absorbent core 41 of absorber 4, the width L6 forming the translot 44X of boxed area 411 is 1mm, and the width L7 of pod 44Y is 2mm, in addition, and the disposable diaper of comparison example 1 in the same manner as example 1.

[performance evaluation]

For the disposable diaper of embodiment 1 ~ 2, comparative example 1, by the following method, soak time and diffusion area is measured.Evaluating environment is room temperature 20 DEG C, humidity 60%RH.Its measurement result is shown in following table 1.

[algoscopy of soak time and diffusion area]

To the disposable diaper obtained in embodiment 1 ~ 2, comparative example 1, to correspond to the mode of the boxed area 411 of absorbent core 41, (internal diameter is 19.5mm to make face sheet and cylinder, contact with absorber top 10mm part internal diameter be 10mm) leading section contact, vertically make this cylinder erect.Then, to apply 21.6g/cm ²the mode of load counterweight is placed on the face sheet of the surrounding of the cylinder vertically erected.Then, from the side, the other end of cylinder supply 30g normal saline (0.9 % by weight sodium chloride water), measure until can't see the soak time (second) till supplied normal saline from the face material in cylinder, and then, the diffusion area (cm after mensuration supply normal saline after 10 minutes ²).In addition, for each diaper, 3 samples are measured, obtains the meansigma methods of the value determined, be shown in table 1.

[table 1]

	Unit	Embodiment 1	Embodiment 2	Comparative example 1
					Soak time	Second	22	18	29
Diffusion area	cm ²	115	112	95

According to the result shown in table 1, compared with the disposable diaper of comparative example 1, the soak time (second) of the disposable diaper of embodiment 1,2 is short, diffusion area (cm ²) also wider.Thus, can infer, compared with the disposable diaper of comparative example 1, the disposable diaper c of embodiment 1,2 can utilize the absorptive capacity of the wider range of absorber 4 efficiently.

Industrial utilizability

According to absorbent commodity of the present invention, body fluid can be made to spread efficiently in the wider range of absorber, the absorptive capacity of the wider range of absorber can be utilized efficiently.

Claims

1. an absorbent commodity, its absorber that there is the face sheet being configured in skin opposite face side, the back-sheet being configured in non-skin opposite face side and be configured in the lengthwise between these two sheet materials, the feature of this absorbent commodity is:

Described absorber has the absorbent core containing absorbing polymeric,

Described absorbent core has boxed area, and this boxed area comprises: the pod that the longitudinal direction along absorbent commodity extends; Along the translot that the transverse direction of absorbent commodity extends; With grammes per square metre in the position marked off by this pod and this translot than each the high grammes per square metre portion of much higher the lengthwise in position of this pod and this translot,

The described high grammes per square metre portion of described absorbent core is integrally formed with the low grammes per square metre portion be made up of the position laying respectively at described translot and described pod,

The thickness of described pod is identical with the thickness of described translot, or the thickness of this pod of Thickness Ratio of this translot is thin, and when overlooking, the width of this translot is wider than the width of this pod.

2. absorbent commodity as claimed in claim 1, is characterized in that:

The skin opposite face side of described absorbent core is smooth, is formed from the protrusion of face sheet side direction back-sheet side protuberance and the depressed part from back-sheet side direction face sheet side depression in non-skin opposite face side.

3. absorbent commodity as claimed in claim 1 or 2, is characterized in that:

The non-boxed area that described absorbent core has described boxed area and configures throughout the periphery of this boxed area, the overall width in veutro portion is identical with the overall width of drosal part, and the width of described boxed area is identical with drosal part in veutro portion.

4. the absorbent commodity according to any one of claims 1 to 3, is characterized in that:

Described absorber has the coating member of described absorbent core and coated absorbent core, the non-skin opposite face of this coating member and described absorbent core is engaged by non-skin side draught acceptor bonding agent, and this non-skin side draught acceptor bonding agent is interrupted and on longitudinal direction, applies shape in alignment on the transverse direction of described absorbent commodity.

5. the absorbent commodity according to any one of Claims 1 to 4, is characterized in that:

Described absorbent core is formed with the layer of paper pulp monomer at the position by non-skin opposite face side.

6. the absorbent commodity according to any one of Claims 1 to 5, is characterized in that:

Described face sheet has the multiple protuberance and the recess adjacent with this protuberance that protrude to skin opposite face side, and the skin opposite face side of this face sheet is formed as sag and swell.

7. the absorbent commodity according to any one of claim 1 ~ 6, is characterized in that:

Hydrophilic middle sheet material is configured with between described absorber and described face sheet.