CN203777165U - Absorptive article - Google Patents

Abstract

The utility model provides an absorptive article, namely a diaper (1A). The diaper comprises a front piece (2), a back piece (3) and a longitudinal absorbing body (4) arranged between the two pieces (2 and 3). The absorbing body (4) comprises an absorptive core (41) containing absorbing polymer and a wrapping material (42). The absorptive core (41) comprises a plurality of block areas (411) formed by arranging block structures (400) in the longitudinal direction (Y direction), wherein the block structures are divided by longitudinal grooves (44Y) and transverse grooves (44X). According to the diameter (1A), gaps (5) are formed by the block structures (400) of the absorptive core (41) and the wrapping material (42) wrapping the absorptive core (41). When the sections of the longitudinal grooves (44Y) are observed from the cross sections in the vertical direction (T direction), a portion (5M) with the gaps (5) and the largest sectional area is arranged at the crotch (C).

Description

Absorbent commodity

Technical field

This utility model relates to the absorbent commodities such as disposable diaper.

Background technology

Be known to a kind of for the rigidity of absorber is become evenly, the absorbent core that a plurality of low rigid portion arrange discontinuously to vertical and horizontal (with reference to TOHKEMY 2006-167424 communique).But because the low rigid portion of this absorbent core arranges discontinuously, therefore, body fluid is difficult to spread fully, is difficult to improve the absorbability of the body fluid in use procedure.

From body fluid, easily spread, the viewpoint that the absorbability of the body fluid in use procedure improves, is known to the absorbent commodity (with reference to TOHKEMY 2009-119154 communique, Japanese kokai publication hei 11-216161 communique) that a kind of use is provided with the bulk absorbers of the groove extending on in-plane.In TOHKEMY 2009-119154 communique, recorded a kind of disposable diaper that possesses absorber, this absorber has: be arranged at interior dough sheet side macromolecule absorber contain the 1st region that ratio is high; Be arranged at outer dough sheet side macromolecule absorber contain the 2nd region that ratio is lower than the 1st region; With the space connecting in 1 region, the 2nd region to the.

In addition, in Japanese kokai publication hei 11-216161 communique, recorded a kind of disposable diaper that possesses absorbent core, above-mentioned absorbent core is divided into have take particle layer and the fibrolaminar absorbent core that stacked comminution pulp is main body on this particle layer of take that super absorbent polymer particles is main body, and at divided position, above-mentioned particle layer is removed.

Summary of the invention

But, in TOHKEMY 2009-119154 communique and Japanese kokai publication hei 11-216161 communique, about the groove width of position change groove in regulation, without any record, further improve the diffusibility of the body fluid in use procedure and the uniform absorbability of body fluid and also have larger improvement leeway.

Therefore, this utility model provides a kind of absorbent commodity, and it possesses the absorber that can eliminate the existing shortcoming of above-mentioned prior art.

This utility model is a kind of absorbent commodity, and it comprises: the positive dough sheet that is arranged at skin opposite face side; Be arranged at the back sheet of non-skin opposite face side; And be arranged at the absorber of the lengthwise between these two sheets.Veutro portion, crotch part, drosal part at above-mentioned absorbent commodity are all provided with above-mentioned absorber.Above-mentioned absorber has absorbent core and the clad material that comprises absorbing polymeric.Above-mentioned absorbent core has: by a plurality of pods at longitudinal extension with divide at a plurality of translots of the horizontal expansion with longitudinal quadrature the piece structure forming a plurality of and piece that form region is set in the vertical.The irregular above-mentioned block of above-mentioned clad material of constructing and covering this absorbent core of tool by above-mentioned absorbent core forms space.During the cross section of a plurality of above-mentioned pods of cross-sectional view, the peaked position with the sectional area in above-mentioned space is arranged at above-mentioned crotch part in the vertical direction.

According to absorbent commodity of the present utility model, the flexibility of absorber integral body improves, and the diffusibility of the body fluid in use procedure improves, and the uniform absorbability of body fluid improves.

Accompanying drawing explanation

Fig. 1 is the axonometric chart as the disposable diaper of the deploying type of the 1st embodiment of the present utility model.

Fig. 2 is a part of sectional top view of the disposable diaper shown in the Fig. 1 seeing from positive dough sheet side.

Fig. 3 is the I-I line sectional view of Fig. 2.

Fig. 4 is the top view of the absorbent core that has of the disposable diaper shown in the Fig. 1 seeing from back sheet side.

Fig. 5 means the skeleton diagram for manufacturing installation one example of the absorber of the disposable diaper of the deploying type as the 1st embodiment of the present utility model.

Fig. 6 is the schematic section along width of a part (recess) of the outer peripheral face side of the rotating cylinder shown in Fig. 5.

Fig. 7 means that absorbent material is deposited in the schematic section of the state in the recess of the rotating cylinder shown in Fig. 5.

Fig. 8 is the axonometric chart as the disposable diaper of the deploying type of the 2nd embodiment of the present utility model.

Fig. 9 is the top view of the absorbent core that has of the disposable diaper shown in the Fig. 8 seeing from back sheet side.

The specific embodiment

This utility model is to provide a kind of absorbent commodity, and it comprises: the positive dough sheet that is arranged at skin opposite face side, be arranged at the back sheet of non-skin opposite face side, and be arranged at the absorber of the lengthwise between these two sheets, veutro portion at above-mentioned absorbent commodity, crotch part, drosal part is all provided with above-mentioned absorber, above-mentioned absorber has absorbent core and the clad material that comprises absorbing polymeric, above-mentioned absorbent core has: by a plurality of pods at longitudinal extension with divide at a plurality of translots of the horizontal expansion with longitudinal quadrature the piece structure forming a plurality of and piece that form region is set in the vertical, the irregular above-mentioned block of above-mentioned clad material of constructing and covering this absorbent core of tool by above-mentioned absorbent core forms space, in the vertical direction during the cross section of a plurality of above-mentioned pods of cross-sectional view, the peaked position with the sectional area in above-mentioned space is arranged at above-mentioned crotch part.

Below, according to preferred embodiment, with reference to Fig. 1～Fig. 4, absorbent commodity of the present utility model is described.Fig. 1 is the axonometric chart as the disposable diaper of the deploying type of the 1st embodiment of the present utility model, and Fig. 2 is a part of sectional top view of the disposable diaper shown in the Fig. 1 seeing from positive dough sheet side, and Fig. 3 is the I-I line sectional view of Fig. 2.In addition, Fig. 4 is the top view of the absorbent core that has of the disposable diaper shown in the Fig. 1 seeing from back sheet side.

The disposable diaper 1A(of the 1st embodiment is following also referred to as " diaper 1A ") comprise as shown in FIG. 1 to 3: the positive dough sheet 2 that is arranged at skin opposite face side; Be arranged at the back sheet 3 of non-skin opposite face side; And be arranged at the absorber 4 of the lengthwise between these two sheets 2,3.In addition, the A of veutro portion, crotch part C, the drosal part B at diaper 1 is provided with absorber 4.Diaper 1A as shown in Figure 2, symmetrically forms with respect to the centre line C L at longitudinal extension.

Diaper 1A as shown in Figure 2, longitudinally (below also referred to as " Y-direction ".Y-direction: there is the A of veutro portion, drosal part B and the crotch part C between this A, B the direction parallel with centre line C L).The A of veutro portion is positioned at the position of the veutro of wearer while dressing diaper, drosal part B is the position that is positioned at the dorsal part of wearer, and crotch part C is the position being positioned under the crotch of wearer.Crotch part C is positioned at longitudinal (Y-direction) central part of diaper 1A.In addition, using and describe with the direction of longitudinal (Y-direction) quadrature horizontal (below also referred to as " directions X ") as diaper 1A.

In this manual, " skin opposite face " refers to, form face in the two sides at the positive back side of positive dough sheet 2 all parts such as grade of diaper 1A, that be positioned at the skin side of wearer while dressing, " non-skin opposite face " refer to, in the two sides at the positive back side of positive dough sheet 2 all parts such as grade, while dressing towards wearer and face skin side opposition side.

As shown in Figure 2, the left and right sides edge of the A of veutro portion and the left and right sides edge of drosal part B extend to more by horizontal (directions X) foreign side than the left and right sides edge of crotch part C respectively diaper 1A.And the left and right sides edge of crotch part C side in horizontal (directions X) bends to circular-arc, integral body has the shape that longitudinally (Y-direction) central part inwardly narrows.Positive dough sheet 2 and back sheet 3 extend from Yuan He rear and front end, the left and right sides Yuan Xiang foreign side of absorber 4 respectively.As shown in Figure 3, the size of its horizontal (directions X) is less than the size of horizontal (directions X) of back sheet 3 for positive dough sheet 2.The extension that positive dough sheet 2 and back sheet 3 extend to foreign side at the periphery from absorber 4 respectively directly or by other parts and be bonded with each other, and clamping, fixing absorber 4.

Diaper 1A as shown in Figure 1 and Figure 2, is the diaper of so-called deploying type, is provided with a pair of magic tape 7,7 in the edge, the left and right sides of drosal part B, is provided with the pull stap 8 that this magic tape 7,7 is attached at the outer surface (non-skin opposite face) of the A of veutro portion.As shown in Figure 2, in the both sides of diaper 1A (Y-direction) along the longitudinal, the three-dimensional rivel with the elastomeric element 61 being fixed with elongation state in the Y direction forms with sheet 62 and arranges and be fixed on positive dough sheet 2 one sides, thus, form a pair of three-dimensional rivel 6,6 (with reference to Fig. 1, Fig. 3).In addition, as shown in Figure 2, in the both sides of diaper 1A (Y-direction) along the longitudinal,, shank rivel forms a plurality of leg elastic members 63 of use is set up with elongation state in the Y direction, the contraction by leg elastic members 63 forms shank rivel.

Absorber 4 as shown in Figure 2 and Figure 3, has the absorbent core 41 that comprises absorbing polymeric and the clad material 42 of coated absorbent core 41.Absorber 4 is coated the liquid retainability that longitudinally (Y-direction) is long absorbent core 41 by being used as the clad material 42 of the hydrophilic sheet of liquid permeability forms.In addition, in diaper 1A, as shown in Figure 3, the both sides of a clad material 42 are folding, the side edge part of clad material 42 is overlapped each other, wrap up thus absorbent core 41, also can use two independent clad materials, each clad material is arranged at respectively to skin opposite face side and the non-skin opposite face side of absorbent core 41, wraps up thus absorbent core 41.

As mentioned above, absorber 4 as shown in Figure 2, spreads all over the A of veutro portion, crotch part C and drosal part B and arranges.

Generally speaking, the A of veutro portion, the drosal part B of absorbent commodity (for example diaper) and crotch part C, unanimous on the whole respectively with the A of veutro portion, drosal part B and the crotch part C of absorber 4.

The profile of absorbent core 41, in diaper 1A, as shown in Figure 2, Figure 4 shows, the left and right sides edge of the A of veutro portion and the left and right sides edge of drosal part B extend to more by horizontal (directions X) foreign side than the left and right sides edge of crotch part C respectively.And the left and right sides edge of crotch part C side in horizontal (directions X) bends to convex, integral body has the inside square shape narrowing of crotch part C as longitudinal (Y-direction) central part.

As shown in Figure 2, Figure 4 shows, absorbent core 41 has: the piece that a plurality of translot 44X that extend by a plurality of pod 44Y that extend in longitudinal (Y-direction) with at horizontal (directions X) with longitudinal (Y-direction) quadrature divide is constructed 400 and longitudinally in (Y-direction), a plurality of piece regions 411 that form is being set, in diaper 1A, there is non-region 412 of the periphery of surrounding piece region 411.A plurality of pod 44Y are in diaper 1A, to form the relative low part of grammes per square metre with a plurality of translot 44X.A plurality of protuberances 43 of the convex of being surrounded and dividing with translot 44X by pod 44Y are to form the relative high part of grammes per square metre, and non-region 412 is also to form the relative high part of grammes per square metre with high grammes per square metre portion 43 equally.

The piece region 411 of absorbent core 41 in diaper 1A, as shown in Figure 2, Figure 4 shows, by by pod 44Y; Translot 44X; With the piece structure 400 that is arranged at the part (the mesh position of grid) of being divided by pod 44Y and translot 44X and grammes per square metre and forms than the protuberance 43 of the high grammes per square metre of much higher lengthwise of pod 44Y and translot 44X position separately, from the A of veutro portion until drosal part B in longitudinal (Y-direction) continuous setting and form.In addition, in diaper 1A, pod 44Y extends abreast with longitudinal (Y-direction) as shown in Figure 2, Figure 4 shows, so long as extend in longitudinal (Y-direction), can be also curve, also can extend obliquely.Translot 44X too.

As shown in Figure 2, Figure 4 shows, the most peripheral of piece structure 400 is surrounded by pod 44Y and translot 44X the piece structure 400 of diaper 1A.As shown in Figure 2, Figure 4 shows, piece structure 400 forms rectangle in longitudinal (Y-direction) upper setting continuously in the piece region 411 of diaper 1A.

Massive structure 411 to absorbent core 41 is carried out more specific description, in diaper 1A, as shown in Figure 4, by divided the protuberance 43 form by translot 44X, pod 44Y, laterally on (directions X), 4 pieces structures 400 that form are being set regularly, from the A of veutro portion until drosal part B in longitudinally (Y-direction), 14 row are set and form regularly.

In addition, the absorbent core 41 of diaper 1A as shown in Figure 3, in the vertical direction on (thickness direction) T, protuberance 43 forms projectedly to back sheet 3 sides (the non-skin opposite face side of absorber 4), and the bottom difference bias of the bottom of pod 44Y and translot 44X is in positive dough sheet 2 sides (the skin opposite face side of absorber 4).As shown in Figure 3, the non-skin opposite face side of absorbent core 41 becomes irregular structure 400 of tool to the absorbent core 41 of diaper 1A, and the skin opposite face side of absorbent core 41 is tabular surface.

In this utility model, as shown in Figure 3, by the clad material 42 of irregular of absorbent core 41 structure 400 and coated absorbent core 41, form space 5.As mentioned above, in diaper 1A, as shown in Figure 2 and Figure 3, translot 44X and pod 44Y are at the non-skin opposite face of the back sheet 3(of absorbent core 41) side integral body is clathrate and forms, mesh position at grid arranges protuberance 43, and translot 44X and pod 44Y form to surround the mode of protuberance 43.Therefore, in diaper 1A, as shown in Figure 2 and Figure 3, a plurality of vertical space 5Y being formed by the pod 44Y to positive dough sheet 2 side depressions and clad material 42 is corresponding with pod 44Y, respectively in longitudinally (Y-direction) upper extension continuously, a plurality of horizontal space 5X being formed by the translot 44X to positive dough sheet 2 side depressions and clad material 42 is corresponding with translot 44X, respectively in laterally (directions X) upper extension continuously.

In addition, in this utility model, as shown in Figure 3, during from the cross section of a plurality of pod 44Y of vertical direction (T direction) cross-sectional view (, while observing the cross section in (T direction) in the vertical direction), there is 5(Zong space, space 5Y) the peaked position 5M of sectional area be arranged at crotch part C.Position 5M is formed at the vertical space 5Y1 of at least a portion among a plurality of vertical space 5Ys that longitudinally (Y-direction) extend corresponding to a plurality of pod 44Y.In addition, position 5M also can be formed in the whole spaces in a plurality of vertical space 5Y.During cross section on observing vertical direction (T direction), the sectional area of the vertical space 5Y1 of a part in the whole region of crotch part C be preferably formed into the sectional area than in the A of veutro portion and the sectional area in drosal part B large.

In diaper 1A, as shown in Figure 3, a plurality of pod 44Y all form the degree of depth of necessarily (fixing), and a plurality of translot 44X also all form certain degree of depth.And in diaper 1A, pod 44Y forms the identical degree of depth with translot 44X.

The vertical space 5Y1 of a part, in diaper 1A, as shown in Figure 3, widens the groove width of the pod 44Y1 corresponding with vertical space 5Y1, increases its sectional area.Like this, position 5M widens the groove width of pod 44Y1, increases its sectional area.

In diaper 1A, as shown in Figure 2, Figure 4 shows, in a plurality of pod 44Y1, the sectional area of the space 5Y1 in the whole region of crotch part C forms larger than the sectional area of the space 5Y1 in the sectional area of the space 5Y1 in the A of veutro portion and drosal part B.In other words, position 5M, in diaper 1A, as shown in Figure 2, Figure 4 shows, spreads all over pod 44Y1(space 5Y1) the whole region of crotch part C.In the situation that the sectional area in the whole region of crotch part C is formed larger than the sectional area in the A of veutro portion and the sectional area in drosal part B, by making the groove width in the A of veutro portion and the groove width in drosal part B of the pod 44Y1 corresponding with vertical space 5Y1, fix (groove width is identical with other pod 44Y), in contrast, increase the groove width in crotch part C of pod 44Y1 and can form.In addition, in the vertical space 5Y1 of diaper 1A, for the long-pending large part (position 5M) of Formation cross-section, widen the groove width of pod 44Y1, but the degree of depth that also can make groove width fix and change pod 44Y1 comes increasing section long-pending, or also can change the groove width of pod 44Y1 and the degree of depth each come increasing section long-pending.

Pod 44Y(indulges space 5Y) be preferably formed 4 above below 7, in diaper 1A, for example, be formed with the vertical space 5Y of 5 pod 44Y().

The horizontal space 5X of translot 44X() be preferably formed 8 above below 21, in diaper 1A, for example, be formed with 15 horizontal space 5X of translot 44X().

And, in diaper 1A, as shown in Figure 2 and Figure 3, for example, vertical space 5Y of 5 pod 44Y() 2 for having the vertical space 5Y1(pod 44Y1 of the part (position 5M) that sectional area in crotch part C is large), at 2 vertical space 5Y1(pod 44Y1) between, be provided with sectional area and form 1 certain vertical space 5Y(pod 44Y).This 1 vertical space 5Y(pod 44Y) as shown in Figure 2 and Figure 3, be arranged in the centre line C L of longitudinal extension.That is, as shown in Figure 4, at least at crotch part C, when the cross section of a plurality of pod 44Y of (T direction) cross-sectional view in the vertical direction, the pod 5Y1 that the sectional area in space 5 is relatively large alternately forms with relative little pod 5Y.

At absorbent core 41 for example for disposable diaper in the situation that, longitudinally below the above 550mm of the preferred 250mm of total length of (Y-direction), below the above 200mm of the preferred 50mm of overall with of horizontal (directions X).

The overall with of horizontal (directions X) of absorbent core 41 in the A of veutro portion is more than 50mm, more than preferred 70mm, and is below 200mm, below preferred 150mm, more specifically, preferably below the above 200mm of 50mm, more preferably below the above 150mm of 70mm.

The overall with of horizontal (directions X) of absorbent core 41 in drosal part B is more than 50mm, more than preferred 70mm, and is below 200mm, below preferred 150mm, more specifically, preferably below the above 200mm of 50mm, more preferably below the above 150mm of 70mm.

The overall with of horizontal (directions X) of absorbent core 41 in crotch part C is more than 25mm, more than preferred 40mm, and is below 115mm, below preferred 85mm, more specifically, preferably below the above 115mm of 25mm, more preferably below the above 85mm of 40mm.

In addition, above-mentioned total length is the value in the longest position finding, and above-mentioned overall with is in the A of veutro portion and drosal part B, in the value of the widest position finding, in crotch part C, is the value in the narrowest position finding.

In piece region 411 for example for disposable diaper in the situation that, the length of its longitudinal (Y-direction) is the more than 70% of total length of the Y-direction of absorbent core 41, preferred more than 85% length, and be below 98%, the preferred length below 95%, more specifically, be preferably more than 70% length below 98%, more preferably more than 85% length below 95%.

In piece region 411 for example for disposable diaper in the situation that, the length of its horizontal (directions X) is the more than 30% of overall with of the directions X of absorbent core 41, preferred more than 50% length, and be below 90%, the preferred length below 70%, more specifically, preferably more than 30% length below 90%, more preferably more than 50% length below 70%.

Be explained in detail below, in the situation that the piece region 411 in the A of veutro portion is for example for disposable diaper, the length of its horizontal (directions X) is the more than 30% of overall with of the directions X at the A of veutro portion of absorbent core 41, preferred more than 50% length, and be below 90%, the preferred length below 70%, more specifically, preferably more than 30% length below 90%, more preferably more than 50% length below 70%.

In the situation that the piece region 411 in the A of veutro portion is for example for disposable diaper, the length of its horizontal (directions X) is more than 40mm, preferably more than 50mm, and be below 180mm, preferably below 130mm, more specifically, preferably below the above 180mm of 40mm, more preferably below the above 130mm of 50mm.

In the situation that the piece region 411 in drosal part B is for example for disposable diaper, the length of its horizontal (directions X) is the more than 30% of overall with of the directions X at drosal part B of absorbent core 41, preferred more than 50% length, and be below 90%, the preferred length below 70%, more specifically, preferably more than 30% length below 90%, more preferably more than 50% length below 70%.

In the situation that the piece region 411 in drosal part B is for example for disposable diaper, the length of its horizontal (directions X) is more than 40mm, preferably more than 50mm, and be below 180mm, preferably below 130mm, more specifically, preferably below the above 180mm of 40mm, more preferably below the above 130mm of 50mm.

In the situation that the piece region 411 in crotch part C is for example for disposable diaper, the length of its horizontal (directions X) is more than 20mm, preferably more than 30mm, and be below 100mm, preferably below 70mm, more specifically, preferably below the above 100mm of 20mm, more preferably below the above 70mm of 30mm.

In addition, the above-mentioned longitudinally length of (Y-direction) is the value in the longest position finding, and the above-mentioned laterally length of (directions X) is in the A of veutro portion and drosal part B, in the value of the longest position finding, in crotch part C, is the value in the shortest position finding.

In non-region 412 for example for disposable diaper in the situation that, the longitudinal length of the both ends of (Y-direction) longitudinal (Y-direction) separately more than 2% below 10% of total length of the Y-direction of absorbent core 41 preferably.Particularly, below the above 40mm of the preferred 5mm of length of above-mentioned longitudinally (Y-direction).In addition, the above-mentioned longitudinally length of (Y-direction) is the value in the widest position finding.

In non-region 412 for example for disposable diaper in the situation that, the length of the both sides of (Y-direction) horizontal (directions X) separately along the longitudinal, in the A of veutro portion, more than 5% length below 30% of the overall with of the directions X at the A of veutro portion of absorbent core 41 preferably, in drosal part B, more than 5% length below 30% of the overall with of the directions X at drosal part B of absorbent core 41 preferably, in crotch part C, more than 5% length below 30% of the overall with of the directions X at crotch part C of absorbent core 41 preferably.Particularly, non-region 412, below the above 40mm of the preferred 10mm of above-mentioned length of horizontal (directions X) in the A of veutro portion, below the above 40mm of the preferred 10mm of above-mentioned length of horizontal (directions X) in drosal part B, below the above 30mm of the preferred 10mm of above-mentioned length of horizontal (directions X) in crotch part C.In addition, the A of veutro portion and the drosal part B above-mentioned laterally length of (directions X) in is separately the value in the widest position finding, and the above-mentioned laterally length of (directions X) in crotch part C is the value in the narrowest position finding.

The size of translot 44X, the pod 44Y of formation piece structure 400 and protuberance 43, grammes per square metre etc. are set forth in more detail.

In diaper 1A, as shown in Figure 2, Figure 4 shows, adjacent pod 44Y interval is each other narrower than adjacent translot 44X interval each other.Herein, adjacent translot 44X interval each other refers to, identical with the length L 1 of longitudinal (Y-direction) of the protuberance 43 of being divided by translot 44X and pod 44Y, and adjacent pod 44Y interval each other refers to, identical with the length L 2 of horizontal (directions X) of protuberance 43.

In diaper 1A, as shown in Figure 2, Figure 4 shows, it is longitudinal (Y-direction) long rectangle that protuberance 43 forms while overlooking.In addition, in diaper 1A, overlook protuberance 43 and form rectangle, but four jiaos can be also circular-arc, can be also polygon, ellipse, their combination etc.

At protuberance 43 for example for disposable diaper in the situation that, as shown in Figure 4, its longitudinally the length L 1 of (Y-direction) be more than 5mm, more than preferred 15mm, and be below 30mm, preferably below 25mm, more specifically, preferably below the above 30mm of 5mm, more preferably below the above 25mm of 15mm.In addition, the length L 2 of its horizontal (directions X) is more than 3mm, more than preferred 5mm, and is below 20mm, below preferred 15mm, more specifically, preferably below the above 20mm of 3mm, more preferably below the above 15mm of 5mm.In addition, length L 1, L2 are the values in the widest position finding.

Outside the 5Y(Chu Zong space 5Y1 of vertical space) for example, for disposable diaper in the situation that, as shown in Figure 3, observe the cross section in (T direction) in the vertical direction, its sectional area until drosal part B is identical, is 0.7mm from the A of veutro portion ²above, preferred 1.5mm ²above, and be 8.8mm ²below, preferred 7.5mm ²below, more specifically, preferred 0.7mm ²above 8.8mm ²below, more preferably 1.5mm ²above 7.5mm ²below.

In the situation that some different vertical space 5Y1 of sectional area is for example for disposable diaper, as shown in Figure 3, observe the cross section in (T direction) in the vertical direction, its sectional area is from the A of veutro portion until drosal part B, preferably identical with the sectional area of above-mentioned vertical space 5Y, the sectional area of the part increasing in crotch part C is 1.5mm ²above, preferred 3.0mm ²above, and be 17.5mm ²below, preferred 15.0mm ²below, more specifically, preferred 1.5mm ²above 17.5mm ²below, more preferably 3.0mm ²above 15.0mm ²below.

At horizontal space 5X for example for disposable diaper in the situation that, as shown in Figure 3, observe the cross section in (T direction) in the vertical direction, its sectional area, laterally (directions X) whole region is identical, is 0.7mm ²above, preferred 1.5mm ²below, and be 8.8mm ²below, preferred 7.5mm ²below, more specifically, preferred 0.7mm ²above 8.8mm ²below, more preferably 1.5mm ²above 7.5mm ²below.Sectional area is measured according to following method.

The assay method > of < sectional area

The hierarchy structure of measuring respectively space is multiplied each other calculates.Width is the measured value of the bottom position of the recess in sag and swell.The degree of depth is sample to be cut into the size of regulation, will measure position pressurization 10 minutes under 5kPa, after duplicate removal, measures immediately.

Locating is that each sample adopts more than 3, the meansigma methods of two samples (it is more than 6 locating).For example, use sharp blade, along longitudinal (Y-direction) shown in Fig. 2 or horizontal (directions X), diaper 1A is cut off, measure the cross section of the sample cutting off.In the situation that naked eyes are difficult to measure, for example also can use microscope (VHX-1000 that KEYENCE company manufactures) under 20-100 multiplying power doubly, observe above-mentioned cut-out sample cross section and measure.For the degree of depth, measure respectively as described above the thickness of recess and the thickness of the protuberance approaching with it and subtract each other and obtain.

At translot 44X and pod 44Y(except pod 44Y1) for example, for disposable diaper in the situation that, as shown in Figure 4, the groove width L3 of the translot 44X of the wire of extending at horizontal (directions X) is more than 0.5mm, preferably more than 1mm, and be below 5mm, preferably below 3mm, more specifically, preferably below the above 5mm of 0.5mm, more preferably below the above 3mm of 1mm.In addition, at the pod 44Y(of the wire that longitudinally (Y-direction) extends except pod 44Y1) groove width L4 be more than 0.5mm, preferably more than 3mm, and be below 5mm, more specifically, below the preferred above 5mm of 0.5mm, more preferably below the above 5mm of 3mm.

In being arranged at the pod 44Y of the A of veutro portion and drosal part B, in the vertical direction during the cross section of (T direction) cross-sectional view pod 44Y, its groove width L4 is the width identical with the groove width L3 of translot preferably.; the groove width in is separately preferably identical with the groove width L4 of above-mentioned pod 44Y at the A of veutro portion and drosal part B for the pod 44Y1 that forms vertical space 5Y1; in addition; from the longitudinally flexural rigidity of (Y-direction) and horizontal (directions X) is approached evenly; the viewpoint that improves the morphotropism to direction of twist of absorbent core 41 is preferably identical with the groove width L3 of above-mentioned translot 44X.Groove width L5 in the crotch part C of the pod 44Y1 of the vertical space 5Y1 of formation is more than 1.5mm, more than preferred 2mm, and is below 8mm, below preferred 6mm, more specifically, preferably below the above 8mm of 1.5mm, more preferably below the above 6mm of 2mm.In addition, width L3, L4, L5 are the measured values of the bottom position at recess in the sag and swell of absorber 4.

Translot 44X and pod 44Y form with the identical degree of depth in diaper 1A, and the degree of depth of translot 44X or pod 44Y (deducting the value after the thickness of translot 44X or pod 44Y from the thickness of protuberance 43) is more than 10% below 70% of thickness of protuberance 43 preferably.Particularly, the degree of depth of translot 44X or pod 44Y is more than 0.5mm, more than preferred 1mm, and is below 4.5mm, below preferred 3.5mm, more specifically, preferably below the above 4.5mm of 0.5mm, more preferably below the above 3.5mm of 1mm.The thickness of protuberance 43 is more than 2mm, more than preferred 3mm, and is below 8mm, below preferred 7mm, more specifically, preferably below the above 8mm of 2mm, more preferably below the above 7mm of 3mm.The thickness in non-region 412 is identical with the thickness of protuberance 43.

At translot 44X or pod 44Y for example for disposable diaper in the situation that, from making it be applicable to well the viewpoint of the health of wearer by improving the bendability of longitudinal (Y-direction) and horizontal (directions X), its grammes per square metre is the more than 20% of grammes per square metre of protuberance 43, preferably more than 30%, and be below 80%, preferably below 70%, more specifically, preferably more than 20% below 80%, more preferably more than 30% below 70%.

Particularly, the grammes per square metre of translot 44X or pod 44Y is 100g/m ²above, preferred 150g/m ²above, and be 500g/m ²below, preferred 400g/m ²below, more specifically, preferred 100g/m ²above 500g/m ²below, more preferably 150g/m ²above 400g/m ²below.In addition, the grammes per square metre of protuberance 43 is 300g/m ²above, preferred 350g/m ²above, and be 900g/m ²below, more preferably 800g/m ²below, more specifically, preferred 300g/m ²above 900g/m ²below, more preferably 350g/m ²above 800g/m ²below.The grammes per square metre in non-region 412 is identical with the grammes per square metre of protuberance 43.

The grammes per square metre in translot 44X, pod 44Y, protuberance 43 and non-region 412 is measured according to following method.

The assay method > of < grammes per square metre

Use Feather(Off ェ ザ ー) single dege blade that company manufactures is cut off with the boundary line of translot 44X or pod 44Y along the protuberance 43 in absorbent core 41.Use electronic balance (the electronic balance GR-300 that A & D company manufactures, precision: after arithmetic point 4) measure respectively 10 small pieces of the protuberance 43 by cutting off to obtain, obtain the average weight of small pieces of protuberance 43.Average area by obtained average weight divided by small pieces of protuberance 43, calculates the grammes per square metre of protuberance 43.The grammes per square metre in non-region 412 is also calculated according to the same method of the grammes per square metre with protuberance 43.

Next, boundary line in longitudinal (Y-direction) upper extension along protuberance 43 with pod 44Y, long according to 100mm, wide according to the design size of the width of pod 44Y, use the single dege blade of Feather company manufacture, cut out 5 small pieces of the pod 44Y of fine strip shape.Use electronic balance (the electronic balance GR-300 that A & D company manufactures, precision: after arithmetic point 4) measure respectively resulting 5 small pieces, get its meansigma methods, obtain the average weight of small pieces of pod 44Y.Average area by obtained average weight divided by small pieces of pod 44Y, calculates the grammes per square metre of pod 44Y.For translot 44X, also according to calculating grammes per square metre with the same method of pod 44Y.

In the absorber 4 of diaper 1A, protuberance 43 is compared and is formed high density with pod 44Y with translot 44X with non-region 412.

At translot 44X or pod 44Y for example for disposable diaper in the situation that, from improving diffusibility and the viewpoint to the fit of wearer of the body fluid use procedure, its density is the more than 50% of density of protuberance 43, preferably more than 75%, and be below 100%, preferably below 95%, more specifically, preferably more than 50% below 100%, more preferably more than 75% below 95%.

Particularly, the density of translot 44X or pod 44Y is 0.05g/cm ³above, preferred 0.07g/cm ³above, and be 0.15g/cm ³below, preferred 0.13g/cm ³below, more specifically, preferred 0.05g/cm ³above 0.15g/cm ³below, more preferably 0.07g/cm ³above 0.13g/cm ³below.In addition, the density of protuberance 43 is 0.05g/cm ³above, preferred 0.07g/cm ³above, and be 0.15g/cm ³below, preferred 0.13g/cm ³below, more specifically, preferred 0.05g/cm ³above 0.15g/cm ³below, more preferably 0.07g/cm ³above 0.13g/cm ³below.The density in non-region 412 is identical with the density of protuberance 43.

The density of protuberance 43, non-region 412, translot 44X and pod 44Y is by using the protuberance 43 of obtaining according to said method, the grammes per square metre of non-region 412, translot 44X and pod 44Y to calculate divided by the thickness separately of obtaining according to said method.

As shown in Figure 3, the translot 44X of absorbent core 41 and pod 44Y and protuberance 43 are integrally formed, and non-region 412 is also integrally formed with protuberance 43, translot 44X and pod 44Y.Said " integrally formed " refers to herein, and translot 44X, pod 44Y, protuberance 43 and non-region 412 do not form as one in mutual indissociable mode by joint methods such as bonding agent or thermal weldings, and adopt identical material to form.Like this, translot 44X, pod 44Y, protuberance 43 and non-region 412 are integrally formed, have the seriality that body fluid can be successfully mobile.Below, the manufacture method of such absorber 4 is described.

Below, the included absorber of diaper 1A 4 is described, possesses translot 44X(low-density), pod 44Y(low-density), protuberance 43(high density) and the manufacture method of the absorber 4 of the integrally formed absorbent core 41 in non-region 412.

Fig. 5 represents the embodiment of manufacture method of absorber 4 and the manufacturing installation using thereof.The manufacturing installation of absorber 4 comprises: the rotating cylinder 50 being driven in rotation to arrow R1 direction; To the outer peripheral face of rotating cylinder 50, supply with the pipeline 60 comprising as the absorbent material 45 of the absorbing polymeric of the raw material of absorbent core 41; Be arranged at the oblique below of the downstream side of rotating cylinder 50, the delivery roll 70 being driven in rotation to arrow R2 direction; Be arranged at the vacuum tank 65 between pipeline 60 and delivery roll 70 on the circumferencial direction of rotating cylinder 50; The reticular zone 75 of the breathability parts as lamellar that arrange according to the mode by between vacuum tank 65 and rotating cylinder 50 and between delivery roll 70 and rotating cylinder 50; With the suction conveyor 80 that is arranged at the below of delivery roll 70.

It is cylindric that rotating cylinder 50 is as shown in Figure 5, accepts the power from motor prime movers, forms the parts of its outer peripheral face around horizontal rotational shaft.Non-rotating part in the inner side of rotating cylinder 50 (rotation shaft side) forms can be by the space of inner pressure relief 56.In space, 56 are connected with the well-known exhaust apparatus (not shown) such as drawing fan, by this exhaust apparatus is worked, can make to remain negative pressure in space 56.On the other hand, in the space 57 and 58 of the inner side of rotating cylinder 50 (rotation shaft side), be connected with the pipe arrangement (not shown) of the air outside can acquisition device.

As shown in Figure 5, at the outer peripheral face of rotating cylinder 50, a plurality of recesses 51 of the shape corresponding with the shape of the absorbent core 41 of manufacturing equally spaced form in R1 direction.In the bottom surface sections of each recess 51, be provided with as shown in Figure 6 the sieve plate 52 that is formed with a plurality of pores; With metal system or resinous difficult breathability parts 53.Herein, difficult breathability parts 53 arrange in mode outstanding on sieve plate 52, and to comprise pod 44Y1 with translot 44X and pod 44Y() mode corresponding to shape and position arrange.As shown in Figure 6, only by being used the region 54 that sieve plate 52 that difficult breathability parts 53 that this mode arranges divide forms, become the part corresponding with protuberance 43, the region 55 that the sieve plate 52 of the whole periphery of the part of only being divided by the breathability parts 53 of being killed in a disaster forms becomes and the non-part that region 412 is corresponding.In addition, the part of outer peripheral face that does not form the rotating cylinder 50 of cylinder recess 51 is comprised of the framework of the rotating cylinder 50 that adopts metal rigid body to form, and is non-breathability.

As shown in Figure 5, the distolateral covering of one is positioned at the outer peripheral face of the rotating cylinder 50 on the space 56 that is maintained at negative pressure to pipeline 60, and another not showing in the drawings distolaterally has a fibrous material gatherer.Fibrous material gatherer comprises: for example pulverize the wood pulp of lamellar and using it as fibrillation paper pulp, and the paper pulp of this fibrillation (fibrous material) is sent into the destructor in pipeline, in the outfit midway of pipeline 60, import the absorbing polymeric introduction part of absorbing polymeric.

Delivery roll 70 possesses the peripheral part cylindraceous with breathability, accepts the power from motor prime movers, and its peripheral part rotates up in R2 side.Non-rotating part in the inner side of delivery roll 70 (rotation shaft side) forms can be by the space of inner pressure relief 71.In space, 71 are connected with the well-known exhaust apparatus (not shown) such as drawing fan, by this exhaust apparatus is worked, can make space 71 keep negative pressure.

Vacuum tank 65 is arranged between the downstream side end 601 and delivery roll 70 of pipeline 60 on the direction of rotation R1 of rotating cylinder 50.Vacuum tank 65 has the shape of case shape, at the position relative with rotating cylinder 50, has the peristome towards rotating cylinder 50 direction openings.Vacuum tank 65 is connected with the well-known exhaust apparatus (not shown) such as drawing fan via exhaustor 67, by this exhaust apparatus is worked, can make the interior maintenance negative pressure of vacuum tank 65.

Reticular zone 75 is that the banded breathability band with mesh is endless and links, by a plurality of free rolls and delivery roll 70 guiding and moved in the path of regulation continuously.Reticular zone 75 is driven by the rotation of delivery roll 70.Reticular zone 75, by during before the above-mentioned peristome of vacuum tank 65, contacts with the outer peripheral face of rotating cylinder 50, and at delivery roll 70 and rotating cylinder 50 is immediate approaches most near portion, the outer peripheral face that leaves rotating cylinder 50 moves on delivery roll 70.

Suction conveyor 80 comprises: the breathability band 83 that is erected at the endless on driven roller 81 and driven voller 82; Clip well the vacuum tank 84 that breathability band 83 is arranged at the position relative with delivery roll 70.

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

First, operation respectively with space 56 and the exhaust apparatus that vacuum tank 65 is connected in rotating cylinder 50, make to become negative pressure in space 56 in this rotating cylinder 50 and vacuum tank 65.This be because, by becoming negative pressure in space 56, in the interior generation of pipeline 60 by absorbent material 45 air draught to the outer peripheral face conveyance of rotating cylinder 50.Next, make rotating cylinder 50 and delivery roll 70 rotations, and make suction conveyor 80 work.Then make the work of above-mentioned fibrous material gatherer, to paper pulp (fibrous material) and the absorbing polymeric after the interior supply fibrillation of pipeline 60, these absorbent materials 45 become by the air draught in the pipeline 60 of flowing through the state of dispersing, and towards the outer peripheral face of rotating cylinder 50, supply with.

In the part being covered by pipeline 60, carry out conveyance during, absorbent material 45 attracted to rotating cylinder 50 cylinder recess 51 in.Absorbent material 45 as shown in Figure 7, is deposited on the regional 54 of a recess 51 and the sieve plate 52 in region 55 gradually.In the deposit 46 obtaining thus, for absorbent material 45, be deposited in position (the corresponding portion of the difficult breathability parts 53) 46a forming on difficult breathability parts 53, the accumulating amount of absorbent material 45 is relatively few, for other position (the corresponding portion in region 54) 46b and position (the corresponding portion in region 55) 46c, the accumulating amount of absorbent material 45 is relatively many, and deposit 46 integral body have and have concavo-convex piece structure.

Then, rotating cylinder 50 rotations, cylinder recess 51 is come the relative position of vacuum tank 65, and the deposit 46 in cylinder recess 51, because of the attraction from vacuum tank 65, becomes the state being adsorbed on reticular zone 75.The deposit 46 of cylinder in recess 51 under this state by conveyance to the front that most approach portion of delivery roll 70 with rotating cylinder 50, near this approaches portion most, because of the attraction from delivery roll 70 sides, keeping being adsorbed to the demoulding from cylinder recess 51 under the state on reticular zone 75, and moving on delivery roll 70.

So, the deposit with sag and swell 46 together moving on delivery roll 70 with reticular zone 75 is attracted on the reticular zone 75 on delivery roll 70, keep this state by conveyance to the junction (lowest end of delivery roll 70) of suction conveyor 80, in this junction, because the attraction of vacuum tank 84 is moved on suction conveyor 80.

In the manufacturing installation of the absorber of present embodiment, as shown in Figure 5, on the suction conveyor 80 before mounting deposit 46, import the clad material 42 that tissue paper or hydrophilic non-woven fabrics form, deposit 46 is moved on clad material 42.In addition, utilize folded sheet (not shown) to fold clad material 42, with after clad material 42 parcel deposits 46, interval according to the rules cuts off the deposit 46 of the state of encapsulated material 42 parcels, manufactures continuously the absorber precursor 49 that is cut off into 1 absorber size.

And in the manufacturing installation of the absorber of present embodiment, the absorber precursor 49 that utilizes presser unit 90 compressions to obtain thus, actively reduces the thickness of the deposit 46 that forms absorber precursor 49, thereby obtains the absorber 4 of target.As shown in Figure 5, possess one of them is the pair of rolls 91,92 of surface smoothing to presser unit 90, from top and bottom, the pressurized thing being imported between roller 91,92 is pressurizeed, and it can be compressed on thickness direction.

While utilizing presser unit 90 compression deposit 46, relative with absorbent material 45 less and little position (the corresponding portion of the difficult breathability parts 53) 46a of thickness compare, relatively many and large position (the corresponding portion in region 54) 46b and position (the corresponding portion in the region 55) 46c of thickness of absorbent material compressed more strongly.Consequently, state in the use in the absorbent core 41 of absorber 4 of manufacturing installation manufacturing, position in deposit 46 (the corresponding portion in region 54) 46b(protuberance) in absorbent core 41, become the relative high protuberance 43 of density and non-region 412 with position (the corresponding portion in region 55) 46c, the position in deposit 46 (the corresponding portion of difficult breathability parts 53) 46a(recess) in absorbent core 41, become translot 44X and pod 44Y that density is relatively low.

Formation material to the disposable diaper 1A of present embodiment describes.

As positive dough sheet 2, back sheet 3, three-dimensional rivel, form with sheet 62, conventionally so long as just can use for the material of the absorbent commodities such as disposable diaper, be not particularly limited.For example, as positive dough sheet 2, can use the non-woven fabrics, apertured film of liquid permeability, their duplexer etc.As back sheet 3, can use the duplexer of resin molding or resin molding and non-woven fabrics etc.As three-dimensional rivel, form with sheet 62, can use film, non-woven fabrics, fabric or their lamination sheets etc. of retractility.

As magic tape 7, conventionally so long as just can use for the material of the absorbent commodities such as disposable diaper, be not particularly limited.Hook face component of for example, " MagicTape(registered trade mark) " (production of kuraray company), " Quicklon(registered trade mark) " (production of YKK company), " MagiCross(registered trade mark) " (production of Kanebobelltouch company) etc. etc.

Absorbent core 41 as forming absorber 4, can be used the material of the particle that keeps absorbing polymeric in the aggregation of the fibers such as paper pulp fiber etc.As the clad material 42 that forms absorber 4, can use by hydrophilic sheet, the core covering piece that forms such as the thin paper (tissue paper) of water penetration or the non-woven fabrics of water penetration etc.

As three-dimensional rivel, form elastomeric element 61 and the leg elastic members 63 of use, can use the retractility material of the wire being formed by polyethylene-alpha olefin copolymers such as natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene etc.

In addition,, in diaper 1A, absorbent core 41 is fixed by bonding agent (not shown) with the clad material 42 of parcel absorbent core 41.The absorber 4 being fixed is like this also fixing with positive dough sheet 2 and back sheet 3 respectively by bonding agent (not shown).As this bonding agent (not shown), conventionally so long as just can use for the material of the absorbent commodities such as disposable diaper, be not particularly limited, for example can use hot-melt adhesive.As hot-melt adhesive, such as the hot-melt adhesive that uses 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 1A of above-mentioned the 1st embodiment of the present utility model describes.

Diaper 1A as shown in Figure 2, Figure 4 shows, has by pod 44Y and translot 44X and divides the piece region 411 forming.Therefore soft, in addition, because of the body fluid after urinating is at vertical space 5Y(pod 44Y) and horizontal space 5X(translot 44X) in mobile, the diffusibility raising of the body fluid in use procedure, can improve the absorbability of absorbent core 41.In addition, in diaper 1A, as shown in Figure 2, Figure 4 shows, while observing (T direction) in the vertical direction cross section of a plurality of pod 44Y, the peaked position 5M of sectional area with space 5 is arranged at crotch part C.Like this, the sectional area of a part of the crotch part C being the most easily detained because of body fluid is large, so, even the particle of the absorbing polymeric of swelling enters in pod 44Y1 after absorb body fluids, pod 44Y1 is also difficult to stop up, body fluid in use procedure is maintained to the diffusibility of longitudinal (Y-direction), and the uniform absorbability of body fluid improves.

In addition, in diaper 1A, it is relative low that pod 44Y and translot 44X form grammes per square metre, and it is relatively high that protuberance 43 forms grammes per square metre, so piece region 411 is more soft, easily, along the shape of the health of wearer, fit improves.Particularly as shown in Figure 3, pod 44Y and translot 44X and protuberance 43 form, so the body fluid absorbing can successfully move.

In addition, in diaper 1A, as shown in Figure 3, while observing in the vertical direction (T direction) cross section, the sectional area ratio veutro A of portion of crotch part C and the sectional area of drosal part B are large for the vertical space 5Y1 of a part in a plurality of vertical space 5Y.Like this, the sectional area of the A of veutro portion and the sectional area of drosal part B of vertical space 5Y1 are little, so, can prevent that the body fluid in use procedure from spreading to longitudinal (Y-direction) too much, prevent that the body fluid of diffusion from spilling from the both ends of longitudinal (Y-direction) of absorbent core 41.

In addition, in diaper 1A, as shown in Figure 2, Figure 4 shows, the Zone Full that spreads all over the periphery in piece region 411 has non-region 412, so, can prevent the body fluid horizontal space 5X(translot 44X that flows through too much), prevent that the body fluid of diffusion is from the both sides side leakage of (Y-direction) along the longitudinal of absorbent core 41.

In addition, in diaper 1A, as shown in Figure 2 and Figure 3, at 2 vertical space 5Y1(pod 44Y1) between be provided with 1 certain vertical space 5Y(pod 44Y of sectional area), so, pod 44Y1 forms dividually across pod 44Y, can keep flexibility, and the effect of diffusion of body fluids is further improved.

In addition, under wearing state, crotch part C is more crooked than the A of veutro portion and drosal part B, and because opening lower limb or walking action, is easily subject to the impact of external force.The sectional area of a part of 44Y1 of the pod in this crotch part C is large, so, easily occurring to be out of shape accordingly with external force, fit improves.

Below, according to Fig. 8, Fig. 9, below the disposable diaper 1B(of the deploying type as the 2nd embodiment of the present utility model, also referred to as " diaper 1B ") describe.

About the diaper 1B of the 2nd embodiment, to describing with the difference of the 1st embodiment 1A.Do not specify that part is identical with diaper 1A, suitably uses the explanation of diaper 1A.

Diaper 1B as shown in Figure 8, it is the disposable diaper of so-called deploying type, in the edge, the left and right sides of drosal part B, be provided with a pair of magic tape 7,7, at a pair of magic tape 7,7 each other, the waist portion elastomeric element 64 that waistline rivel forms use is with elongation state setting on directions X, and the contraction by waist portion elastomeric element 64 forms waistline rivel.As waist portion elastomeric element 64, can use with three-dimensional rivel and form the elastomeric element 61 of use and the same retractility material of leg elastic members 63.

The absorbent core 41 of diaper 1B is same with the absorbent core 41 of diaper 1A, as shown in Figure 8, Figure 9, the piece structure 400 of being divided by a plurality of pod 44Y and a plurality of translot 44X from the A of veutro portion until drosal part B in longitudinally (Y-direction), arrange a plurality of and form piece region 411, as shown in Figure 9, the A of veutro portion in piece region 411 and drosal part B width W a1, Wb1 separately forms wider than the width W c1 of the crotch part C in piece region 411 in the piece region 411 of diaper 1B.Specifically describe, the piece region of diaper 1B 411 can be divided into substantially: be arranged at diaper 1B the A of veutro portion side veutro piece region 411a, be arranged at piece region 411b, the piece region 411a that is arranged at veutro of dorsal part and tri-regions of piece region 411c of the crotch part between the piece region 411b of dorsal part of the drosal part B side of diaper 1B.The piece region 411b of the piece region 411a of veutro and dorsal part as shown in Figure 9, extends to by width (directions X) foreign side than the piece region 411c of crotch part respectively.The width of the piece region 411a of veutro (the width W a1 of the 411a of veutro portion in piece region 411) is identical with the width (the width W b1 of the drosal part 411b in piece region 411) of the piece region 411b of dorsal part.

More specific description is carried out in piece region 411 to the absorbent core 41 shown in Fig. 9.In absorbent core 41A, as shown in Figure 9, the piece region 411b of dorsal part arranges regularly 5 pieces structures 400 that form by the protuberance 43 divided by translot 44X, pod 44Y and in longitudinally (Y-direction), 4 row is set regularly and forms on laterally (directions X).In addition, as shown in Figure 9, the piece region 411c of hip crotch arranges regularly 3 pieces structures 400 that form by protuberance 43 and in longitudinally (Y-direction), 7 row is set regularly and forms on laterally (directions X).In addition, as shown in Figure 9, the piece region 411a of veutro arranges regularly 5 pieces structures 400 that form by the protuberance 43 divided by translot 44X, pod 44Y and in longitudinally (Y-direction), 4 row is set regularly and forms on laterally (directions X).

The absorbent core 41 of diaper 1B has: non-region 412 of the periphery in above-mentioned piece region 411 and encirclement piece region 411, forms longitudinally (Y-direction) central part shape that inwardly side narrows.Specifically describe, as shown in Figure 9, the whole width W a of the A of veutro portion is wider than the whole width W b of drosal part B for the absorbent core 41 of diaper 1B, and the whole width W c of crotch part C is the narrowest.; the non-region 412 of diaper 1B as shown in Figure 9; the both side edges of the A of veutro portion and the both side edges of drosal part B extend to and more lean on laterally (directions X) foreign side than the both side edges of crotch part C respectively, and the both side edges of the A of veutro portion extends to more by horizontal (directions X) foreign side than the both side edges of drosal part B respectively.

Below, 5(Zong space, space 5Y, the horizontal space 5X of the diaper 1B that the clad material 42 of the piece structure 400 by absorbent core 41 and coated absorbent core 41 is formed) describe.

In the 411a of the piece region of veutro, pod 44Y(indulges space 5Y) be preferably formed 5 above below 8, the horizontal space 5X of translot 44X() be preferably formed 3 above below 6, in diaper 1B, for example, be formed with the vertical space 5Y of 6 pod 44Y() and for example 5 horizontal space 5X of translot 44X().

In the 411b of the piece region of dorsal part, pod 44Y(indulges space 5Y) be preferably formed 5 above below 8, the horizontal space 5X of translot 44X() be preferably formed 3 above below 6, in diaper 1B, same with the piece region 411a of veutro, for example be formed with the vertical space 5Y of 6 pod 44Y(), be for example formed with 5 horizontal space 5X of translot 44X().

In the 411c of the piece region of crotch part, pod 44Y(indulges space 5Y) be preferably formed with 5 above below 8, the horizontal space 5X of translot 44X() be preferably formed with 6 above below 11, in diaper 1B, for example be formed with the vertical space 5Y of 4 pod 44Y(), be for example formed with 8 horizontal space 5X of translot 44X().

In the piece region 411 of diaper 1B, as shown in Figure 8, Figure 9, be formed with from the A of veutro portion until the vertical space 5Y of 4 pod 44Y(that drosal part B piece region 411a, the piece region 411c of hip crotch that extend, that spread all over veutro and the piece region 411b of dorsal part extend continuously).In diaper 1B, these 4 pod 44Y(indulge space 5Y) near 2 pods in the centre line C L of longitudinal extension, be the vertical space 5Y1(pod 44Y1 having in the large part of the sectional area of crotch part C (position 5M)).These 2 vertical space 5Y1(pod 44Y1) as shown in Figure 8, Figure 9, with respect to centre line C L, arrange symmetrically.

In diaper 1B, 1A is same with diaper, and a plurality of pod 44Y all form certain degree of depth, and a plurality of translot 44X also all form certain degree of depth.And pod 44Y forms the identical degree of depth with translot 44X.

Above-mentioned 2 vertical space 5Y1 widen equally the groove width of the pod 44Y1 corresponding with vertical space 5Y1, to increase its sectional area in diaper 1B with diaper 1A.In diaper 1B, the sectional area in the roughly whole region of the piece region 411c of hip crotch forms larger than the sectional area in the piece region 411b of the sectional area in the piece region 411a of veutro and dorsal part.In other words, position 5M, in diaper 1B, as shown in Figure 8, spreads all over pod 44Y1(space 5Y1) the whole region of crotch part C.By making the groove width certain (groove width is identical with other pod 44Y) in the piece region 411b of groove width in the piece region 411a of veutro of the pod 44Y1 corresponding with vertical space 5Y1 and dorsal part, in contrast, increase hip crotch piece region 411c general whole region groove width and form.

The included absorber 4 of diaper 1B also can be according to the method manufacture same with the included absorber 4 of diaper 1A.

Action effect when using the disposable diaper 1B of above-mentioned the 2nd embodiment of the present utility model describes.

About the diaper 1B of the 2nd embodiment, to describing with the difference of the 1st embodiment 1A.Do not specify that part is identical with the effect of diaper 1A, suitably uses the explanation of diaper 1A.

Under wearing state, crotch part C is more crooked than the A of veutro portion and drosal part B, and is easily applied in external force because opening lower limb or walking action.Therefore easily there is the distortion causing because of external force, easily occur, because the caused fit of excessive distortion declines and side leakage, the width W c1 of the crotch part C in piece region 411 to be narrowed down, prevent thus the excessive deformation of absorber.In addition, because the width W c1 of crotch part C is narrow, therefore, can further prevent that the body fluid spreading from spilling from the side of absorber 4 in translot 44X.

Absorbent commodity of the present utility model is not limited to the disposable diaper 1A of above-mentioned the 1st embodiment, the disposable diaper 1B of above-mentioned the 2nd embodiment completely, can suitably change.In addition, each element in the diaper 1A～1B of above-mentioned the 1st～2nd embodiment, in the scope of not destroying aim of the present utility model, can suitably combine to implement.

For example, in above-mentioned diaper 1A, 1B, as shown in Fig. 2, Fig. 8, construct 400 from the A of veutro portion until drosal part B is longitudinally arranging (Y-direction) continuously for a plurality of, thereby form piece region 411, also can discontinuously arrange.That is, the piece region 411a of veutro is, the piece region 411b of the piece region 411c of hip crotch and dorsal part also can be spaced from each other compartment of terrain setting.

In addition, in above-mentioned diaper 1A, 1B, as shown in Figure 3, non-skin opposite face side is sag and swell to absorbent core 41, and skin opposite face side is tabular surface, but also can form skin opposite face side, is sag and swell, and non-skin opposite face side is tabular surface.

In addition, in above-mentioned diaper 1A, 1B, as shown in Fig. 2, Fig. 8, the absorbent core 41 of absorber 4 is formed by monolayer, but also can be formed by multilamellar.Particularly, also can, by above-mentioned absorbent core 41 for lower floor, on this absorbent core 41, other absorbent core be set and form absorber 4.In these other absorbent core, in the situation that be formed with the central opening portion of the lengthwise that connects the whole region of thickness direction in the centre line C L extending longitudinally, preferably in absorbent core 41, in the position corresponding with this central opening portion, a plurality of vertical space 5Y(pod 44Y are set) in the large vertical space 5Y1(pod 44Y1 of a part of sectional area).

In addition, in above-mentioned diaper 1A, 1B, as shown in Fig. 2, Fig. 8, the piece of absorbent core 41 structure 400 forms clathrate by translot 44X and pod 44Y integral body, but is not limited to this cancellate shape.

In addition, above-mentioned diaper 1 as shown in Figure 2, is the disposable diaper of deploying type, can be also the disposable diaper of Briefs type.

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

< 1 > absorbent commodity,

It comprises: the positive dough sheet that is arranged at skin opposite face side; Be arranged at the back sheet of non-skin opposite face side; And be arranged at the absorber of the lengthwise between these two sheets,

Veutro portion, crotch part, drosal part at above-mentioned absorbent commodity are all provided with above-mentioned absorber,

Above-mentioned absorber has absorbent core and the clad material that comprises absorbable polymer,

Above-mentioned absorbent core has: by a plurality of pods at longitudinal extension with divide at a plurality of translots of the horizontal expansion with longitudinal quadrature the piece structure forming a plurality of and piece that form region is set in the vertical,

The irregular above-mentioned block of above-mentioned clad material of constructing and covering this absorbent core of tool by above-mentioned absorbent core forms space,

During the cross section of a plurality of above-mentioned pods of cross-sectional view, the peaked position with the sectional area in above-mentioned space is arranged at above-mentioned crotch part in the vertical direction.

Absorbent commodity described in above-mentioned < 1 > of < 2 >,

A plurality of above-mentioned pods all form certain degree of depth,

The groove width of above-mentioned pod is widened at the peaked position of the sectional area with above-mentioned space in above-mentioned crotch part, to increase its sectional area.

Absorbent commodity described in < above-mentioned < 1 > of 3 > or < 2 >,

Above-mentioned structure is from veutro portion until drosal part arranges in the vertical continuously, and in above-mentioned a plurality of pods, the sectional area in above-mentioned space and the sectional area in the above-mentioned space in drosal part in the sectional area ratio veutro portion in the above-mentioned space in crotch part Zone Full are large.

Absorbent commodity in above-mentioned < 1 >～< 3 > of < 4 > described in any one,

The average grammes per square metre that the grammes per square metre of a plurality of above-mentioned pods is compared described absorbent core forms relatively low, and the average grammes per square metre that the grammes per square metre of a plurality of above-mentioned translots is compared above-mentioned absorbent core forms relatively low.

Absorbent commodity in above-mentioned < 1 >～< 4 > of < 5 > described in any one,

Above-mentioned absorbent core has non-region of the periphery of surrounding above-mentioned region.

Absorbent commodity in above-mentioned < 1 >～< 5 > of < 6 > described in any one,

Adjacent above-mentioned pod interval is each other narrower than adjacent above-mentioned translot interval each other.

Absorbent commodity in above-mentioned < 3 >～< 6 > of < 7 > described in any one,

In being arranged at the above-mentioned pod of veutro portion and drosal part, its groove width during cross section of this pod of cross-sectional view and the groove width of above-mentioned translot are identical width in the vertical direction.

Absorbent commodity in above-mentioned < 1 >～< 7 > of < 8 > described in any one,

At least, at crotch part, when the cross section from the above-mentioned a plurality of pods of vertical direction cross-sectional view, the pod little pod relative to sectional area that the sectional area in above-mentioned space is relatively large alternately forms.

Absorbent commodity in above-mentioned < 1 >～< 8 > of < 9 > described in any one,

The left and right sides edge of the veutro portion of above-mentioned absorbent commodity and the left and right sides edge of drosal part extend to more by horizontal foreign side than the left and right sides edge of crotch part respectively, the left and right sides edge of crotch part side within laterally bends to convex, integral body has the shape that longitudinal central part inwardly narrows, above-mentioned positive dough sheet and above-mentioned back sheet extend to foreign side from Yuan He rear and front end, the left and right sides edge of above-mentioned absorber respectively, and the horizontal size of this positive dough sheet is less than the horizontal size of this back sheet.

Absorbent commodity in above-mentioned < 1 >～< 9 > of < 10 > described in any one,

The coated longitudinally above-mentioned absorbent core of long liquid retainability of above-mentioned clad material that above-mentioned absorber is used as the hydrophilic sheet of liquid permeability forms, the both sides of this clad material are folding, the side edge part of this clad material is overlapped each other, wrap up thus this absorbent core.

Absorbent commodity in above-mentioned < 1 >～< 10 > of < 11 > described in any one,

The profile of above-mentioned absorbent core, the left and right sides edge of veutro portion and the left and right sides edge of drosal part extend to more by horizontal foreign side than the left and right sides edge of crotch part respectively, the left and right sides edge of crotch part bends to convex to horizontal interior side, and integral body has the inside square shape narrowing of crotch part as longitudinal central part.

Absorbent commodity in above-mentioned < 1 >～< 11 > of < 12 > described in any one,

Above-mentioned structure of above-mentioned absorbent commodity, its most peripheral is surrounded by above-mentioned pod and above-mentioned translot, and above-mentioned region of above-mentioned absorbent commodity arranged and forms rectangle continuously in the vertical by this piece structure.

Absorbent commodity in above-mentioned < 1 >～< 12 > of < 13 > described in any one,

The above-mentioned absorbent core of above-mentioned absorbent commodity, in vertical direction, protuberance forms in the mode of protruding to above-mentioned back sheet side, above-mentioned pod and above-mentioned translot difference bias are in above-mentioned positive dough sheet side, the non-skin opposite face side of this absorbent core becomes the irregular above-mentioned structure of tool, and the skin opposite face side of this absorbent core is tabular surface.

Absorbent commodity described in above-mentioned < 13 > of < 14 >,

Above-mentioned translot and above-mentioned pod integral body are clathrate and are formed at the above-mentioned back sheet side of above-mentioned absorbent core, and raised part is arranged at the mesh position of grid, and this translot and this pod form according to the mode of surrounding this protuberance.

Absorbent commodity in above-mentioned < 1 >～< 14 > of < 15 > described in any one,

Above-mentioned absorbent core, above-mentioned pod be formed with 4 above below 7, above-mentioned translot be formed with 8 above below 21.

Absorbent commodity in above-mentioned < 1 >～< 15 > of < 16 > described in any one,

1 above-mentioned space is arranged on the centrage of longitudinal extension.

Absorbent commodity in above-mentioned < 1 >～< 16 > of < 17 > described in any one,

The longitudinal length in above-mentioned region is more than 70% length below 98% of the total length longitudinally of above-mentioned absorbent core, or is more than 85% length below 95%.

Absorbent commodity in above-mentioned < 1 >～< 17 > of < 18 > described in any one,

The lateral length in above-mentioned region is more than 30% length below 90% of the horizontal overall with of above-mentioned absorbent core, or 50% above length below 70%.

Absorbent commodity in above-mentioned < 1 >～< 18 > of < 19 > described in any one,

More than 30% length below 90% of the horizontal overall with of the drosal part that the lateral length in above-mentioned region in drosal part is above-mentioned absorbent core, or 50% above length below 70%.

Absorbent commodity in above-mentioned < 5 >～< 19 > of < 20 > described in any one,

The both ends longitudinally in above-mentioned non-region longitudinal length is separately more than 2% length below 10% of longitudinal total length of above-mentioned absorbent core 41.

Absorbent commodity in above-mentioned < 5 >～< 19 > of < 21 > described in any one,

The both sides along the longitudinal in above-mentioned non-region lateral length separately, in veutro portion, be more than 5% length below 30% of horizontal overall with of the veutro portion of above-mentioned absorbent core, more than 5% length below 30% of the horizontal overall with of the drosal part that is this absorbent core at drosal part, more than 5% length below 30% of the horizontal overall with of the crotch part that is this absorbent core at crotch part.

Absorbent commodity in above-mentioned < 13 >～< 21 > of < 22 > described in any one,

Above-mentioned translot and above-mentioned pod form with the identical degree of depth, more than 10% below 70% of the thickness that the degree of depth of this translot or this pod is raised part.

Absorbent commodity in above-mentioned < 13 >～< 22 > of < 23 > described in any one,

The grammes per square metre of above-mentioned translot or above-mentioned pod is more than 20% below 80% of grammes per square metre of raised part, or 30% is above below 70%.

Absorbent commodity in above-mentioned < 13 >～< 23 > of < 24 > described in any one,

Raised part is compared and is formed high density with above-mentioned pod with above-mentioned translot with above-mentioned non-region.

Absorbent commodity in above-mentioned < 13 >～< 24 > of < 25 > described in any one,

The density of above-mentioned translot or above-mentioned pod is more than 50% below 100% of density of raised part, or 75% is above below 95%.

Absorbent commodity in above-mentioned < 1 >～< 25 > of < 26 > described in any one,

Above-mentioned absorbent commodity is the disposable diaper of deploying type.

Absorbent commodity described in above-mentioned < 26 > of < 27 >,

Above-mentioned absorbent commodity is provided with a pair of magic tape in the edge, the left and right sides of drosal part, outer surface in veutro portion is provided with the pull stap that this magic tape is attached, both sides along the longitudinal at above-mentioned absorbent commodity, in above-mentioned positive dough sheet one side setting and be fixed with the three-dimensional rivel formation sheet with the elastomeric element being fixed with elongation state in the vertical, form a pair of three-dimensional rivel, both sides along the longitudinal at above-mentioned absorbent commodity, with elongation state, be provided with a plurality of leg elastic members that shank rivel forms use in the vertical, contraction by leg elastic members forms shank rivel.

Absorbent commodity in above-mentioned < 1 >～< 25 > of < 28 > described in any one,

Above-mentioned absorbent commodity is pull-on disposable diaper.

Claims (28)

1. an absorbent commodity, is characterized in that:

Comprise: the positive dough sheet that is arranged at skin opposite face side; Be arranged at the back sheet of non-skin opposite face side; And be arranged at the absorber of the lengthwise between these two sheets,

Veutro portion, crotch part, drosal part at described absorbent commodity are all provided with described absorber,

Described absorber has absorbent core and the clad material that comprises absorbable polymer,

Described absorbent core has: by a plurality of pods at longitudinal extension with divide at a plurality of translots of the horizontal expansion with longitudinal quadrature the piece structure forming a plurality of and piece that form region is set in the vertical,

The irregular described block of described clad material of constructing and covering this absorbent core of tool by described absorbent core forms space,

During the cross section of a plurality of described pods of cross-sectional view, the peaked position with the sectional area in described space is arranged at described crotch part in the vertical direction.

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

A plurality of described pods all form certain degree of depth,

The groove width of described pod is widened at the peaked position of the sectional area with described space in described crotch part, to increase its sectional area.

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

Described structure is from veutro portion until drosal part arranges in the vertical continuously, and in described a plurality of pods, the sectional area in described space and the sectional area in the described space in drosal part in the sectional area ratio veutro portion in the described space in crotch part Zone Full are large.

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

The average grammes per square metre that the grammes per square metre of a plurality of described pods is compared described absorbent core forms relatively low, and the average grammes per square metre that the grammes per square metre of a plurality of described translots is compared described absorbent core forms relatively low.

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

Described absorbent core has non-region of the periphery of surrounding described region.

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

Adjacent described pod interval is each other narrower than adjacent described translot interval each other.

7. absorbent commodity as claimed in claim 3, is characterized in that:

In being arranged at the described pod of veutro portion and drosal part, its groove width during cross section of this pod of cross-sectional view and the groove width of described translot are identical width in the vertical direction.

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

At least, at crotch part, when the cross section from a plurality of pods described in vertical direction cross-sectional view, the pod little pod relative to sectional area that the sectional area in described space is relatively large alternately forms.

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

The left and right sides edge of the veutro portion of described absorbent commodity and the left and right sides edge of drosal part extend to more by horizontal foreign side than the left and right sides edge of crotch part respectively, the left and right sides edge of crotch part side within laterally bends to convex, integral body has the shape that longitudinal central part inwardly narrows, described positive dough sheet and described back sheet extend to foreign side from Yuan He rear and front end, the left and right sides edge of described absorber respectively, and the horizontal size of this positive dough sheet is less than the horizontal size of this back sheet.

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

The coated longitudinally described absorbent core of long liquid retainability of described clad material that described absorber is used as the hydrophilic sheet of liquid permeability forms, the both sides of this clad material are folding, the side edge part of this clad material is overlapped each other, wrap up thus this absorbent core.

11. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

The profile of described absorbent core, the left and right sides edge of veutro portion and the left and right sides edge of drosal part extend to more by horizontal foreign side than the left and right sides edge of crotch part respectively, the left and right sides edge of crotch part bends to convex to horizontal interior side, and integral body has the inside square shape narrowing of crotch part as longitudinal central part.

12. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

Described structure of described absorbent commodity, its most peripheral is surrounded by described pod and described translot, and described region of described absorbent commodity arranged and forms rectangle continuously in the vertical by this piece structure.

13. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

The described absorbent core of described absorbent commodity, in vertical direction, protuberance forms in the mode of protruding to described back sheet side, described pod and described translot difference bias are in described positive dough sheet side, the non-skin opposite face side of this absorbent core becomes the irregular described structure of tool, and the skin opposite face side of this absorbent core is tabular surface.

14. absorbent commodities as claimed in claim 13, is characterized in that:

Described translot and described pod integral body are clathrate and are formed at the described back sheet side of described absorbent core, and described protuberance is arranged at the mesh position of grid, and this translot and this pod form according to the mode of surrounding this protuberance.

15. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

Described absorbent core, described pod be formed with 4 above below 7, described translot be formed with 8 above below 21.

16. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

1 described space is arranged on the centrage of longitudinal extension.

17. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

The longitudinal length in described region is more than 70% length below 98% of the total length longitudinally of described absorbent core.

18. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

The lateral length in described region is more than 30% length below 90% of the horizontal overall with of described absorbent core.

19. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

More than 30% length below 90% of the horizontal overall with of the drosal part that the lateral length in described region in drosal part is described absorbent core.

20. absorbent commodities as claimed in claim 5, is characterized in that:

More than 2% length below 10% of longitudinal total length that the both ends longitudinally in described non-region longitudinal length is separately described absorbent core.

21. absorbent commodities as claimed in claim 5, is characterized in that:

The both sides along the longitudinal in described non-region lateral length separately, in veutro portion, be more than 5% length below 30% of horizontal overall with of the veutro portion of described absorbent core, more than 5% length below 30% of the horizontal overall with of the drosal part that is this absorbent core at drosal part, more than 5% length below 30% of the horizontal overall with of the crotch part that is this absorbent core at crotch part.

22. absorbent commodities as claimed in claim 13, is characterized in that:

Described translot and described pod form with the identical degree of depth, more than 10% below 70% of the thickness that the degree of depth of this translot or this pod is described protuberance.

23. absorbent commodities as claimed in claim 13, is characterized in that:

The grammes per square metre of described translot or described pod is more than 20% below 80% of grammes per square metre of described protuberance.

24. absorbent commodities as claimed in claim 13, is characterized in that:

Described protuberance is compared and is formed high density with described pod with described translot with described non-region.

25. absorbent commodities as claimed in claim 13, is characterized in that:

The density of described translot or described pod is more than 50% below 100% of density of described protuberance.

26. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

Described absorbent commodity is the disposable diaper of deploying type.

27. absorbent commodities as claimed in claim 26, is characterized in that:

Described absorbent commodity is provided with a pair of magic tape in the edge, the left and right sides of drosal part, outer surface in veutro portion is provided with the pull stap that this magic tape is attached, both sides along the longitudinal at described absorbent commodity, in described positive dough sheet one side setting and be fixed with the three-dimensional rivel formation sheet with the elastomeric element being fixed with elongation state in the vertical, form a pair of three-dimensional rivel, both sides along the longitudinal at described absorbent commodity, with elongation state, be provided with a plurality of leg elastic members that shank rivel forms use in the vertical, contraction by leg elastic members forms shank rivel.

28. absorbent commodities as claimed in claim 1 or 2, is characterized in that:

Described absorbent commodity is pull-on disposable diaper.