TWM468299U - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
TWM468299U
TWM468299U TW102210880U TW102210880U TWM468299U TW M468299 U TWM468299 U TW M468299U TW 102210880 U TW102210880 U TW 102210880U TW 102210880 U TW102210880 U TW 102210880U TW M468299 U TWM468299 U TW M468299U
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Taiwan
Prior art keywords
basis weight
weight portion
absorbent article
absorbent
longitudinal direction
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TW102210880U
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Chinese (zh)
Inventor
Shigeto Yanagihara
Nobuya Sato
Hiromichi Suzuki
Mina Tomita
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Kao Corp
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Publication of TWM468299U publication Critical patent/TWM468299U/en

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Abstract

The device is to effectively prevent the unintended deformation of an absorbent member, which is caused by the contraction force of gathers, without the deterioration of inherent flexibility of a block-shaped absorbent core against deformation. An absorbent article includes side flaps that extend outward from both widthwise side edges of an absorbent member, the side edges being located along. An absorbent core includes block regions and non-block regions positioned on an outer periphery of the block regions. The block regions include a block structure having high-basis weight portions and a low-basis weight portion, and an entire periphery of each of the high-basis weight portions is surrounded by the low-basis weight portion so that the block regions are independent of each other. A side flap-elastic member extending in the longitudinal direction is disposed on the side flaps under a stretched state, and the block region extends outward in the longitudinal direction beyond end portions of the side flap-elastic members.

Description

吸收性物品Absorbent article

本創作係關於一種拋棄式尿布等吸收性物品。This creation is about an absorbent article such as disposable diapers.

已知有使用設置有沿平面方向延伸設置之槽狀之空間之塊狀之吸收體的吸收性物品(參照專利文獻1)。於該文獻中記載有吸液性芯體沿著於前後方向上延伸之虛擬線及於寬度方向上延伸之虛擬線分割之狀態。於分割部位中芯體彼此分開。於該文獻中記載有如下內容：由於吸液性芯體成為如上所述之構成，故體液自芯體之頂面被吸收，除此以外，亦自側面被吸收。An absorbent article using a block-shaped absorbent body provided with a groove-like space extending in the planar direction is known (see Patent Document 1). This document describes a state in which the liquid-absorbent core is divided along the imaginary line extending in the front-rear direction and the imaginary line extending in the width direction. The cores are separated from each other in the divided portion. In this document, it is described that since the liquid-absorbent core has the above-described configuration, the body fluid is absorbed from the top surface of the core body, and is also absorbed from the side surface.

關於使用塊狀之吸收體(吸收性芯體)之吸收性物品，本申請人亦於專利文獻2中提出有具備包含複數個小吸收部及位於其非肌膚抵接面側之基礎片材之吸收性芯體的吸收性物品。相鄰之小吸收部間被分斷，且小吸收部之間成為凹部。根據該吸收性物品，存在如下優點：藉由較高之液體擴散性能而吸收保持量提高，且於對於重複之***等之吸收中可有效地使用更廣更多之小吸收部。In the absorbent article using a bulk absorbent body (absorbent core), the applicant also proposes a base sheet comprising a plurality of small absorbent portions and a non-skin abutting surface side thereof. Absorbent article of absorbent core. The adjacent small absorbent portions are separated, and the small absorbent portions are recessed. According to the absorbent article, there is an advantage that the absorption retention amount is improved by the higher liquid diffusion property, and a wider and larger small absorption portion can be effectively used in the absorption for repeated excretion or the like.

[先前技術文獻][Previous Technical Literature] [專利文獻][Patent Literature]

[專利文獻1]日本專利特開平11-216161號公報[Patent Document 1] Japanese Patent Laid-Open No. Hei 11-216161

[專利文獻2]日本專利特開2011-136034號公報[Patent Document 2] Japanese Patent Laid-Open Publication No. 2011-136034

塊狀之吸收性芯體因其構造而容易相對於外力柔軟地變形，因此，與複雜地起伏之肌膚面相配合地變形而無間隙地於面抵接之人體適合性或與穿著者之身體之運動相配合地變形而維持其肌膚面與面抵接之狀態之動作追隨性優異。然而，另一方面，因吸收性物品中一般使用之褶皺之收縮力而吸收性芯體容易意料外地撓曲，其結果，有時會產生難以穿戴之不良情況。The block-shaped absorbent core is easily deformed softly with respect to an external force due to its structure, and therefore, it is deformed in cooperation with a complicated undulating skin surface, and the human body fits against the surface without a gap or with the body of the wearer. The movement is cooperatively deformed to maintain the state in which the skin surface and the surface are in contact with each other, and the action followability is excellent. On the other hand, however, the absorbent core is easily deflected unexpectedly due to the contraction force of the wrinkles generally used in the absorbent article, and as a result, it may cause difficulty in wearing.

因此，本創作之課題在於提供一種可消除上述先前技術所具有之缺點之吸收性物品。Accordingly, the object of the present invention is to provide an absorbent article which eliminates the disadvantages of the prior art described above.

本創作提供一種吸收性物品，其包含正面片材、背面片材及配置於該正面片材與該背面片材之間之吸收體，於該正面片材之沿著長度方向之兩側部之位置上配置有於長度方向上延伸之防漏壁，進而包含自該吸收體之沿著長度方向之兩側緣向寬度方向外側延伸之側翼，上述吸收體包含含有高吸收聚合物之吸收性芯體，上述吸收性芯體包含塊狀區域、及位於該塊狀區域之外周之非塊狀區域，上述塊狀區域具有包含基重相對較高之複數個高基重部及基重相對較低之低基重部之塊狀構造，各高基重部各自之周圍係遍及其整個區域由該低基重部包圍而各自獨立，於長度方向上延伸之側翼彈性構件以伸長狀態配置於上述側翼，上述塊狀區域越過配置有上述側翼彈性構件之端部而向長度方向外側延伸。The present invention provides an absorbent article comprising a front sheet, a back sheet, and an absorbent body disposed between the front sheet and the back sheet, on both sides of the front sheet along the length direction The leakage preventing wall extending in the longitudinal direction is disposed at a position, and further comprises a side wing extending outward from the both sides of the absorbent body in the longitudinal direction in the longitudinal direction, wherein the absorbent body comprises an absorbent core containing a superabsorbent polymer The absorptive core comprises a block region and a non-block region located outside the block region, the block region having a plurality of high basis weights having a relatively high basis weight and a relatively low basis weight The block-like structure of the low basis weight portion, each of the high basis weight portions is surrounded by the low basis weight portion and is independent of each other, and the side wing elastic members extending in the longitudinal direction are disposed in the extended state on the side flaps The block-shaped region extends outward in the longitudinal direction beyond the end portion where the side flap elastic member is disposed.

根據本創作，不會損壞塊狀之吸收性芯體本來具有之對於變形之柔軟度，且可有效地防止由褶皺之收縮力所引起之吸收體之意料外 之變形。According to the present invention, the block-shaped absorbent core does not have the softness to the deformation, and the absorption body caused by the contraction force of the wrinkles can be effectively prevented from being unexpected. The deformation.

10‧‧‧拋棄式尿布10‧‧‧Disposable diapers

20‧‧‧吸收體20‧‧‧ absorber

21‧‧‧正面片材21‧‧‧Front sheet

22‧‧‧吸收性芯體22‧‧‧Absorbable core

22A‧‧‧吸收性芯體22A‧‧‧Absorbent core

22B‧‧‧吸收性芯體22B‧‧‧Absorbent core

23‧‧‧背面片材23‧‧‧Back sheet

24‧‧‧側翼24‧‧‧Flanking

41‧‧‧吸收性芯體41‧‧‧Absorbable core

42‧‧‧被覆材42‧‧‧Covered timber

45‧‧‧吸液性材料45‧‧‧liquid absorbing materials

46‧‧‧堆積物46‧‧‧ Deposits

46a‧‧‧難透氣性構件53對應部46a‧‧‧ Corresponding part of the gas-permeable member 53

46b‧‧‧區域54對應部46b‧‧‧Record of Region 54

46c‧‧‧區域55對應部46c‧‧‧Interface 55

49‧‧‧吸收體前驅物49‧‧‧ Absorber precursor

50‧‧‧旋轉筒50‧‧‧Rotating cylinder

51‧‧‧筒凹部51‧‧‧Cylinder recess

52‧‧‧網板52‧‧‧ stencil

53‧‧‧難透氣性構件53‧‧‧Insufficient gas-permeable components

54‧‧‧區域54‧‧‧Area

55‧‧‧區域55‧‧‧Area

56‧‧‧空間56‧‧‧ Space

57‧‧‧空間57‧‧‧ Space

58‧‧‧空間58‧‧‧ Space

60‧‧‧導管60‧‧‧ catheter

61‧‧‧下游側端部61‧‧‧ downstream end

65‧‧‧真空箱65‧‧‧vacuum box

67‧‧‧排氣管67‧‧‧Exhaust pipe

70‧‧‧傳料輥70‧‧‧Feed roller

71‧‧‧空間71‧‧‧ Space

75‧‧‧網帶75‧‧‧Net belt

80‧‧‧真空輸送機80‧‧‧Vacuum conveyor

81‧‧‧驅動輥81‧‧‧ drive roller

82‧‧‧從動輥82‧‧‧ driven roller

83‧‧‧透氣性傳送帶83‧‧‧ Breathable conveyor belt

84‧‧‧真空箱84‧‧‧vacuum box

90‧‧‧加壓機構90‧‧‧ Pressurizing mechanism

91‧‧‧輥91‧‧‧ Roll

92‧‧‧輥92‧‧‧roll

161‧‧‧防漏壁彈性構件161‧‧‧Leak-proof wall elastic member

161A、161B‧‧‧端部161A, 161B‧‧‧ end

162‧‧‧防漏壁形成用片材162‧‧‧Shelf for leak prevention wall formation

163‧‧‧側翼彈性構件163‧‧‧Flanking elastic members

163A、163B‧‧‧端部163A, 163B‧‧‧ end

164‧‧‧腰褶皺形成用之彈性片材164‧‧‧ Elastic sheet for waist fold formation

164a‧‧‧片材構件164a‧‧‧Sheet components

164b‧‧‧片材構件164b‧‧‧Sheet components

165a‧‧‧彈性構件165a‧‧‧Flexible components

165b‧‧‧彈性構件165b‧‧‧Flexible components

223A‧‧‧第1面223A‧‧‧1st

223B‧‧‧第2面223B‧‧‧2nd

234a‧‧‧高基重部234a‧‧‧High base

234a'‧‧‧高基重部之頂端區域234a'‧‧‧Top area of the high base

234b‧‧‧低基重部234b‧‧‧Low basis weight

235‧‧‧塊狀區域235‧‧‧block area

236‧‧‧非塊狀區域236‧‧‧ non-blocky areas

237A‧‧‧腹側部高基重部群237A‧‧‧ ventral high base group

237B‧‧‧背側部高基重部群237B‧‧‧Back side high base weight group

237C‧‧‧下襠部高基重部群237C‧‧‧The lower part of the high-base group

A‧‧‧腹側部A‧‧‧ ventral side

B‧‧‧背側部B‧‧‧Back side

C‧‧‧下襠部C‧‧‧Lower Department

CL‧‧‧長度方向中心線CL‧‧‧ Length direction centerline

F‧‧‧緊固帶F‧‧‧ fastening tape

K‧‧‧邊界部K‧‧‧Border Department

L‧‧‧著扣帶L‧‧‧ buckle belt

R1‧‧‧箭頭R1‧‧‧ arrow

R2‧‧‧箭頭R2‧‧‧ arrow

W‧‧‧腰部開口緣W‧‧‧ waist opening edge

X‧‧‧寬度方向X‧‧‧Width direction

Y‧‧‧長度方向Y‧‧‧ Length direction

圖1係自正面片材側觀察作為本創作之吸收性物品之一實施形態之展開型拋棄式尿布所得之平面圖。Fig. 1 is a plan view showing the unfolded diaper as an embodiment of the absorbent article of the present invention viewed from the side of the front sheet.

圖2係圖1所示之尿布之分解立體圖。Figure 2 is an exploded perspective view of the diaper shown in Figure 1.

圖3係圖1所示之尿布之吸收性芯體中之X-X線剖面圖。Figure 3 is a cross-sectional view taken along line X-X of the absorbent core of the diaper shown in Figure 1.

圖4係自正面片材側觀察圖1所示之尿布之吸收性芯體所得之平面圖。Fig. 4 is a plan view showing the absorbent core of the diaper shown in Fig. 1 as seen from the side of the front sheet.

圖5係表示圖1所示之尿布中之吸收體之製造裝置之一例的概略圖。Fig. 5 is a schematic view showing an example of a manufacturing apparatus of an absorbent body in the diaper shown in Fig. 1;

圖6係沿著圖5所示之旋轉筒中之外周面側之一部分(凹部)之寬度方向之模式剖面圖。Fig. 6 is a schematic cross-sectional view showing a width direction of a portion (recessed portion) on the outer peripheral surface side of the rotary cylinder shown in Fig. 5.

圖7係表示於圖5所示之旋轉筒之凹部堆積有吸收性材料之狀態的模式剖面圖。Fig. 7 is a schematic cross-sectional view showing a state in which an absorbent material is deposited in a concave portion of the rotary cylinder shown in Fig. 5 .

圖8(a)及(b)係表示圖1所示之尿布中之吸收性芯體之其他實施形態之平面圖。Fig. 8 (a) and (b) are plan views showing other embodiments of the absorbent core in the diaper shown in Fig. 1.

圖9係表示比較例1之拋棄式尿布之平面圖(相當於圖1之圖)。Fig. 9 is a plan view (corresponding to Fig. 1) of the disposable diaper of Comparative Example 1.

圖10係表示比較例2之拋棄式尿布之平面圖(相當於圖1之圖)。Fig. 10 is a plan view showing a disposable diaper of Comparative Example 2 (corresponding to Fig. 1).

以下，針對本創作，根據其較佳之實施形態參照圖式而進行說明。於圖1中表示本創作之一實施形態之拋棄式尿布。圖2係圖1所示之尿布之分解立體圖。該等圖所示之尿布係所謂之展開型拋棄式尿布。尿布10具有長度方向Y及與其正交之寬度方向X。Hereinafter, the present invention will be described with reference to the drawings based on preferred embodiments thereof. A disposable diaper according to one embodiment of the present invention is shown in FIG. Figure 2 is an exploded perspective view of the diaper shown in Figure 1. The diapers shown in the figures are so-called unfolded disposable diapers. The diaper 10 has a longitudinal direction Y and a width direction X orthogonal thereto.

於以下之說明中，所謂「非肌膚抵接面側」，係指吸收體20等各構件之正背兩側(面)中於穿著時配置於與穿著者之肌膚側相反側之側(面)。所謂「肌膚抵接面側」，係指各構件之正背兩側(面)中於穿著時 配置於穿著者之肌膚側之側(面)。又，關於尿布10之長度方向，亦將腹側部A側稱為「前側」，亦將背側部B側稱為「後側」。In the following description, the term "non-skin contact surface side" refers to the side of the front and back sides (faces) of the members such as the absorbent body 20 that are disposed on the side opposite to the wearer's skin side when worn. ). The term "skin contact surface side" refers to the front and back sides (faces) of each member when worn. It is placed on the side (face) of the skin side of the wearer. Further, regarding the longitudinal direction of the diaper 10, the side of the front side portion A is also referred to as "front side", and the side of the back side portion B is also referred to as "rear side".

尿布10包含配置於穿著者之肌膚抵接面側之正面片材21、配置於非肌膚抵接面側之背面片材23、及配置於該等兩片材21、23間之縱長之吸收體20。正面片材21包含液體透過性之片材，且於尿布10之穿著狀態下與穿著者之肌膚對向。背面片材23包含液體不透過性或斥水性之片材，且於穿著狀態下朝向外側。The diaper 10 includes a front sheet 21 disposed on the skin contact surface side of the wearer, a back sheet 23 disposed on the non-skin contact surface side, and a longitudinal absorbent disposed between the two sheets 21 and 23. Body 20. The front sheet 21 contains a liquid permeable sheet and is opposed to the wearer's skin in a state in which the diaper 10 is worn. The back sheet 23 contains a liquid impermeable or water repellent sheet and faces outward in a worn state.

尿布10形成為相對於沿長度方向延伸之長度方向中心線CL而左右對稱。尿布10包含位於長度方向之中央區域之下襠部C、以及自下襠部C起分別向長度方向前方及後方延伸之腹側部A及背側部B。腹側部A係於尿布10之穿著時配置於穿著者之腹側。背側部B係於尿布10之穿著時配置於穿著者之背側。下襠部C係於尿布10之穿著時配置於穿著者之下襠。The diaper 10 is formed to be bilaterally symmetrical with respect to the longitudinal direction center line CL extending in the longitudinal direction. The diaper 10 includes a crotch portion C located below the central portion in the longitudinal direction, and a ventral portion A and a back side portion B extending forward and rearward in the longitudinal direction from the crotch portion C, respectively. The ventral portion A is placed on the ventral side of the wearer when the diaper 10 is worn. The back side portion B is disposed on the back side of the wearer when the diaper 10 is worn. The lower jaw C is placed under the wearer when the diaper 10 is worn.

尿布10係腹側部A之左右兩側緣及背側部B之左右兩側緣分別相較下襠部C之左右兩側緣而向寬度方向外側延伸。下襠部C之左右兩側緣係朝向寬度方向內側呈圓弧狀彎曲，整體上具有長度方向之中央區域朝著內側變細之形狀。正面片材21及背面片材23分別自吸收體20之左右兩側緣及前後兩端緣向外側延伸。正面片材21及背面片材23分別於自吸收體20之周緣向外側延伸之延伸部直接地或***其他構件而相互接合，夾持、固定吸收體20。The left and right side edges of the diaper 10, the left and right side edges of the front side portion A, and the left and right side edges of the back side portion B extend outward in the width direction from the left and right side edges of the lower jaw portion C, respectively. The left and right sides of the crotch portion C are curved in an arc shape toward the inner side in the width direction, and have a shape in which the central portion in the longitudinal direction is tapered toward the inside. The front sheet 21 and the back sheet 23 extend outward from the left and right side edges and the front and rear end edges of the absorber 20, respectively. The front sheet 21 and the back sheet 23 are joined to each other directly or by inserting other members into the extending portion extending outward from the peripheral edge of the absorber 20, and the absorber 20 is sandwiched and fixed.

尿布10係於背側部B之左右兩側緣部設置有一對緊固帶F、F。於腹側部A之外表面(非肌膚抵接面)即背面片材23之非肌膚抵接面，如圖2所示，設置有將緊固帶F、F固著之著扣帶L。The diaper 10 is provided with a pair of fastening tapes F and F on the left and right side edges of the back side portion B. On the outer surface of the abdominal side portion A (non-skin contact surface), that is, the non-skin contact surface of the back sheet 23, as shown in FIG. 2, a fastening tape L for fixing the fastening tapes F and F is provided.

於尿布10之沿著長度方向之兩側部各者，包含以伸長狀態固定於長度方向之防漏壁彈性構件161之防漏壁形成用片材162配置並固定於正面片材21之側部。藉此，於尿布10之肌膚抵接面側形成於尿布10 之長度方向上延伸之一對防漏壁。防漏壁包含固定端與自由端，防漏壁彈性構件161沿著自由端以伸長狀態固定。防漏壁彈性構件161包含靠近腹側部A之端部161A及靠近背側部B之端部161B。Each of the both sides of the diaper 10 in the longitudinal direction is disposed and fixed to the side of the front sheet 21 including the leakage preventing wall forming sheet 162 which is fixed to the longitudinal direction of the leakage preventing wall elastic member 161 in an extended state. . Thereby, the diaper 10 is formed on the skin contact surface side of the diaper 10 One of the lengthwise extensions of the pair of leakproof walls. The leakage preventing wall includes a fixed end and a free end, and the leakage preventing wall elastic member 161 is fixed in an extended state along the free end. The leakage preventing wall elastic member 161 includes an end portion 161A close to the abdominal side portion A and an end portion 161B near the back side portion B.

於較防漏壁之固定端更為寬度方向外側之位置上，防漏壁形成用片材162與背面片材23接合，藉此，形成一對側翼24。側翼24係自吸收體20之沿著長度方向之兩側緣向寬度方向外側延伸，且於尿布10之長度方向上延伸。於側翼24，於與下襠部C大致對應之部位上腿褶皺形成用之複數根側翼彈性構件163以伸長狀態配置於長度方向上。側翼彈性構件163夾持固定於防漏壁形成用片材162與背面片材23之間。側翼彈性構件163包含靠近腹側部A之端部163A及靠近背側部B之端部163B。藉由側翼彈性構件163進行收縮，而於尿布10之下襠部C形成腿褶皺。The leakage preventing wall forming sheet 162 is joined to the back sheet 23 at a position wider than the fixed end of the leakage preventing wall, thereby forming a pair of side flaps 24. The side flaps 24 extend outward in the width direction from both side edges of the absorbent body 20 in the longitudinal direction, and extend in the longitudinal direction of the diaper 10. In the side flaps 24, the plurality of side flap elastic members 163 for forming the leg gathers at the portions substantially corresponding to the lower jaw portion C are disposed in the longitudinal direction in an extended state. The side flap elastic member 163 is sandwiched and fixed between the leakage preventing wall forming sheet 162 and the back sheet 23 . The side flap elastic member 163 includes an end portion 163A close to the front side portion A and an end portion 163B near the back side portion B. The crotch is formed by the side elastic members 163, and the crotch portion C is formed under the diaper 10.

於尿布10之背側部B側之長度方向端部配置有腰褶皺形成用之彈性片材164。彈性片材164係於尿布10之寬度方向上延伸之複數根彈性構件165a、165b以伸長狀態夾持固定於2片片材構件164a、164b之間而構成。An elastic sheet 164 for forming a waist gather is disposed at an end portion in the longitudinal direction of the back side portion B side of the diaper 10. The elastic sheet 164 is formed by sandwiching and fixing a plurality of elastic members 165a and 165b extending in the width direction of the diaper 10 between the two sheet members 164a and 164b in an extended state.

於彈性片材164中，複數根彈性構件165a、165b中位於靠近腰部開口緣W之位置上之彈性構件即彈性構件165b係自尿布10之寬度方向上之一側緣部之附近之位置起遍及另一側緣部之附近之位置而連續地配置。另一方面，位於較彈性構件165b更靠吸收體之位置上之彈性構件即彈性構件165a僅配置於尿布10之寬度方向上之左右之兩側部，於寬度方向之中央區域未配置彈性構件165a。詳細而言，彈性構件165a係於尿布10之寬度方向上之側緣部附近具有一端。另一端係於到達尿布10之寬度方向中央區域之前終止。In the elastic sheet 164, the elastic member 165b which is an elastic member located at a position close to the waist opening edge W of the plurality of elastic members 165a, 165b is located from the vicinity of one side edge portion in the width direction of the diaper 10 The position of the other side edge portion is continuously arranged. On the other hand, the elastic member 165a which is an elastic member located at a position closer to the absorber than the elastic member 165b is disposed only on the left and right sides in the width direction of the diaper 10, and the elastic member 165a is not disposed in the central portion in the width direction. . Specifically, the elastic member 165a has one end in the vicinity of the side edge portion in the width direction of the diaper 10. The other end terminates before reaching the central region in the width direction of the diaper 10.

吸收體20係於俯視時，形成於與尿布1之長度方向相同之方向上延伸之縱長之形狀，且相對於長度方向中心線CL而形成對稱形。吸 收體20係自尿布10中之腹側部A起遍及背側部B而配置。吸收體20之左右之側緣於長度方向之中央區域即與尿布10中之下襠部C相對應之部位朝向寬度方向內側彎曲。吸收體20包含含有高吸收聚合物之吸收性芯體22及包裹該吸收性芯體22之被覆材。The absorber 20 is formed in a vertically long shape extending in the same direction as the longitudinal direction of the diaper 1 in a plan view, and is formed in a symmetrical shape with respect to the longitudinal center line CL. Suck The body 20 is disposed from the front side portion A of the diaper 10 to the back side portion B. The side edges of the left and right sides of the absorbent body 20 are curved in the central portion in the longitudinal direction, that is, the portions corresponding to the lower crotch portion C in the diaper 10 toward the inner side in the width direction. The absorbent body 20 includes an absorbent core 22 containing a highly absorbent polymer and a covering material that surrounds the absorbent core 22.

於圖3中表示圖1所示之吸收體20中之含有吸收聚合物之吸收性芯體22之X-X線剖面圖。如該圖所示，吸收性芯體22包含第1面223A及第2面223B。第1面223A為肌膚抵接面，且朝向正面片材21或視需要使用之中間片材(未圖示)側。第2面223B為非肌膚抵接面側，且朝向背面片材23側。Fig. 3 is a cross-sectional view taken along the line X-X of the absorbent core 22 containing the absorbing polymer in the absorbent body 20 shown in Fig. 1. As shown in the figure, the absorbent core 22 includes a first surface 223A and a second surface 223B. The first surface 223A is a skin contact surface, and faces the front sheet 21 or an intermediate sheet (not shown) side as needed. The second surface 223B is on the non-skin contact surface side and faces the back sheet 23 side.

吸收性芯體22包含基重相對較高且具有朝向背面片材側突出之凸形狀之高基重部234a、及與高基重部234a鄰接且基重相對較低並自背面片材側朝向正面片材側凹下之低基重部234b。高基重部234a與低基重部234b一體成形。吸收性芯體22係其非肌膚抵接面側成為凹凸構造，且肌膚抵接面側平坦。若將吸收性芯體22之非肌膚抵接面側設為凹凸構造，則吸收性芯體22容易因自吸收性芯體22之寬度方向施加之外力而柔軟地變形。其結果，尿布10之貼合性提高。所謂「一體成形」，係指該等部位不經由接著劑或熱熔合等接合手段而相互之間無法分離地一體化，利用相同之材料一體地形成。若該等部位一體成形，則具有體液可順利地移動之連續性。之後對如上所述之構造之吸收性芯體22之製造方法進行說明。The absorbent core 22 includes a high basis weight portion 234a having a relatively high basis weight and having a convex shape protruding toward the back sheet side, and a high basis weight portion 234a adjacent to the base portion and having a relatively low basis weight and facing from the back sheet side The base sheet is recessed to the lower base portion 234b. The high basis weight portion 234a is integrally formed with the low basis weight portion 234b. In the absorbent core 22, the non-skin contact surface side has a concave-convex structure, and the skin contact surface side is flat. When the non-skin contact surface side of the absorptive core 22 is a concavo-convex structure, the absorptive core body 22 is easily deformed softly by applying an external force from the width direction of the absorptive core body 22. As a result, the fit of the diaper 10 is improved. The term “integral molding” means that the portions are integrally formed without being separated from each other without being bonded via a bonding means such as an adhesive or heat fusion, and are integrally formed of the same material. When these parts are integrally formed, the continuity of the body fluid can be smoothly moved. Next, a method of manufacturing the absorbent core 22 having the above configuration will be described.

吸收性芯體22包含吸液性材料。作為吸液性材料，可使用與吸收性物品之技術領域中先前所使用之材料相同之材料。例如，可使用解纖紙漿或包含水凝膠材料之高吸收性聚合物。尤其是，若於最非肌膚對向面側形成有紙漿單體之層即高基重部234a之頂端區域234a'僅由紙漿構成，則可於尿布10之非肌膚抵接面中降低由高吸水聚合物所引起之硬度，因而較佳。吸收性芯體22亦可利用包含衛生紙或不織布 等之液體透過性片材而被覆。The absorbent core 22 comprises a liquid absorbing material. As the liquid absorbing material, the same material as that previously used in the technical field of the absorbent article can be used. For example, defibrated pulp or a superabsorbent polymer comprising a hydrogel material can be used. In particular, if the top end region 234a' of the high basis weight portion 234a, which is the layer on which the pulp monomer is formed on the most non-skin facing side, is composed only of pulp, it can be lowered in the non-skin contact surface of the diaper 10 The hardness caused by the water-absorbing polymer is therefore preferred. The absorbent core 22 can also utilize toilet paper or non-woven fabric The liquid permeable sheet is coated.

於圖4中表示自正面片材21側觀察吸收性芯體22所得之平面圖。如該圖及圖1所示，低基重部234b中之複數根與吸收性芯體22之長度方向平行地延伸。又，低基重部234b中之複數根亦於吸收性芯體22之寬度方向上延伸。其結果，低基重部234b形成於吸收性芯體22之長度方向及寬度方向上延伸之正交之格子狀之形狀。而且，高基重部234a位於由低基重部234b所形成之格子內。因此，各個高基重部234a係由低基重部234b劃分，而各自獨立。各高基重部234a之形狀大致相同，俯視時形成矩形，長度方向之長度大於寬度方向之長度。另一方面，關於低基重部234b，該低基重部234b於吸收性芯體22之長度方向及寬度方向上延伸並相互連結而成為連續體。於吸收性芯體22之長度方向上延伸之低基重部234b之寬度與於吸收性芯體22之寬度方向上延伸之低基重部234b之寬度既可相同或者亦可不同。A plan view of the absorbent core 22 viewed from the side of the front sheet 21 is shown in FIG. As shown in this figure and FIG. 1, a plurality of the low basis weight portions 234b extend in parallel with the longitudinal direction of the absorbent core 22. Further, the plurality of bases in the low basis weight portion 234b also extend in the width direction of the absorbent core 22. As a result, the low basis weight portion 234b is formed in an orthogonal lattice shape extending in the longitudinal direction and the width direction of the absorbent core 22. Moreover, the high basis weight portion 234a is located in a lattice formed by the low basis weight portion 234b. Therefore, each of the high basis weights 234a is divided by the low basis weights 234b and is independent of each other. Each of the high basis weight portions 234a has substantially the same shape, and is formed in a rectangular shape in plan view, and the length in the longitudinal direction is larger than the length in the width direction. On the other hand, in the low basis weight portion 234b, the low basis weight portion 234b extends in the longitudinal direction and the width direction of the absorbent core 22 and is connected to each other to form a continuous body. The width of the low basis weight portion 234b extending in the longitudinal direction of the absorbent core 22 and the width of the low basis weight portion 234b extending in the width direction of the absorbent core 22 may be the same or different.

如上所述，吸收性芯體22具有包含基重相對較高之複數個高基重部234a及基重相對較低之低基重部234b的塊狀構造，且包含各高基重部234a之周圍遍及其整個區域由低基重部234b包圍而各自獨立之塊狀區域235。進而，塊狀構造之最外周係由低基重部234b包圍。位於塊狀構造之最外周之低基重部234b之角部較佳為帶有描繪朝向外側凸出之曲線之弧度。As described above, the absorbent core 22 has a block-like structure including a plurality of high basis weight portions 234a having a relatively high basis weight and a low basis weight portion 234b having a relatively low basis weight, and includes each of the high basis weight portions 234a. The surrounding block regions 235 are surrounded by low basis weights 234b throughout their entire area. Further, the outermost periphery of the block structure is surrounded by the low basis weight portion 234b. The corner portion of the low basis weight portion 234b located at the outermost periphery of the block structure preferably has a curvature which depicts a curve which is convex toward the outside.

藉由包含含有高基重部234a與低基重部234b之塊狀區域235，而吸收性芯體22成為於其長度方向及寬度方向之兩個方向上柔軟者，由此，吸收性芯體22容易沿著穿著者之身體之形狀。進而，藉由所***之液體由厚度較薄之低基重部導引而流動，而可提高吸收性芯體22之長度方向及寬度方向之擴散性。By including the block region 235 including the high basis weight portion 234a and the low basis weight portion 234b, the absorbent core 22 is soft in both the longitudinal direction and the width direction thereof, whereby the absorbent core body 22 is easy to follow the shape of the wearer's body. Further, since the discharged liquid is guided by the low-weight base portion having a small thickness, the diffusibility of the absorbent core 22 in the longitudinal direction and the width direction can be improved.

相對於高基重部234a之基重的低基重部234b之基重之下限值較佳為20%，進而較佳為30%。上限值較佳為80%，進而較佳為70%。高 基重部234a自身之基重之下限值較佳為300g/m2 ，進而較佳為350g/m2 。上限值較佳為900g/m2 ，進而較佳為800g/m2 。關於低基重部234b，其基重之下限值較佳為100g/m2 ，進而較佳為150g/m2 。上限值較佳為500g/m2 ，進而較佳為400g/m2 。基重係以如下之方式測定。The lower limit of the basis weight of the low basis weight portion 234b with respect to the basis weight of the high basis weight portion 234a is preferably 20%, and more preferably 30%. The upper limit is preferably 80%, and more preferably 70%. The lower limit of the basis weight of the high basis weight portion 234a itself is preferably 300 g/m 2 , and more preferably 350 g/m 2 . The upper limit is preferably 900 g/m 2 , and more preferably 800 g/m 2 . Regarding the low basis weight portion 234b, the lower limit of the basis weight is preferably 100 g/m 2 , and more preferably 150 g/m 2 . The upper limit is preferably 500 g/m 2 , and more preferably 400 g/m 2 . The basis weight was determined in the following manner.

沿著吸收性芯體22中之高基重部234a與低基重部234b之邊界線使用Feather公司製造之單刃剃刀予以切斷。分別使用電子天平(A & D公司製造之電子天平GR-300、精度：小數點以後4位)對切斷所得之高基重部234a之10個小片進行測定，求出高基重部234a之1個小片之平均重量。將所求得之平均重量除以高基重部234a之每1個小片之平均面積而算出高基重部234a之基重。下述之非塊狀區域236之基重亦以與高基重部234a之基重相同之方式算出。A single-edged razor manufactured by Feather Corporation was cut along the boundary line between the high basis weight portion 234a and the low basis weight portion 234b in the absorbent core 22. Ten pieces of the high basis weight portion 234a obtained by cutting were measured using an electronic balance (electronic balance GR-300 manufactured by A & D Co., Ltd., accuracy: four digits after the decimal point), and the high basis weight portion 234a was obtained. The average weight of 1 small piece. The basis weight of the high basis weight portion 234a is calculated by dividing the average weight obtained by the average area of each of the small pieces of the high basis weight portion 234a. The basis weight of the non-block region 236 described below is also calculated in the same manner as the basis weight of the high basis weight portion 234a.

繼而，沿著高基重部234a與低基重部234b之於縱向(Y方向)上延伸之邊界線，以長度100mm、寬度與低基重部234b之寬度之設計尺寸相配合，使用Feather公司製造之單刃剃刀，切下細條紋狀之低基重部234b之Y方向之5個小片。分別使用電子天平(A & D公司製造之電子天平GR-300、精度：小數點以後4位)對所獲得之5個小片進行測定，並加以平均而求出低基重部234b之1個小片之平均重量。將所求得之平均重量除以低基重部234b之Y方向之每1個小片之平均面積而算出低基重部234b之Y方向之基重。對於低基重部234b之X方向，亦以與低基重部234b之Y方向相同之方式算出基重。Then, along the boundary line extending in the longitudinal direction (Y direction) of the high basis weight portion 234a and the low basis weight portion 234b, the design size of the length of 100 mm and the width and the width of the low basis weight portion 234b is matched, and Feather is used. The manufactured single-edged razor was cut into five small pieces in the Y direction of the fine-grained low basis weight portion 234b. The obtained three small pieces were measured using an electronic balance (electronic balance GR-300 manufactured by A & D Co., Ltd., accuracy: four decimal places), and averaged to obtain one small piece of the low basis weight portion 234b. The average weight. The basis weight of the low basis weight portion 234b in the Y direction is calculated by dividing the average weight obtained by the average area of each of the small pieces in the Y direction of the low basis weight portion 234b. The basis weight is also calculated in the X direction of the low basis weight portion 234b in the same manner as the Y direction of the low basis weight portion 234b.

高基重部234a不僅基重大於低基重部234b，厚度亦大於低基重部234b。相對於高基重部234a之厚度的低基重部234b之厚度之下限值較佳為30%，進而較佳為40%。上限值較佳為90%，進而較佳為80%。高基重部234a自身之厚度之下限值較佳為2mm，進而較佳為3mm。上限值較佳為8mm，進而較佳為7mm。關於低基重部234b，其厚度 之下限值較佳為1.5mm，進而較佳為2.5mm。上限值較佳為4.5mm，進而較佳為4mm。高基重部234a、低基重部234b(X方向、Y方向)及下述之非塊狀區域236之厚度係利用以下之方法而測定。將樣品切割成特定之大小，以5kPa對測定部位加壓10分鐘，除重後立刻進行測定。測定部位係設為每1片中包含腹側部、胯襠部、背側部各自之任意1處以上之3處以上，且根據2片尿布樣品(測定部位6處以上)之平均而得出厚度。例如利用鋒利之剃刀沿圖1所示之縱向(Y方向)或橫向(X方向)切斷尿布10，對該經切斷之樣品之剖面進行測定。於難以用肉眼進行測定之情形時，亦可使用例如顯微鏡(KEYENCE公司製造之VHX-1000)以20~50倍之倍率觀察上述經切斷之樣品之剖面而進行測定。The high basis weight portion 234a is not only substantially larger than the low basis weight portion 234b, but also thicker than the low basis weight portion 234b. The lower limit of the thickness of the low basis weight portion 234b with respect to the thickness of the high basis weight portion 234a is preferably 30%, and more preferably 40%. The upper limit is preferably 90%, and more preferably 80%. The lower limit of the thickness of the high basis weight portion 234a itself is preferably 2 mm, and more preferably 3 mm. The upper limit is preferably 8 mm, and more preferably 7 mm. Regarding the low basis weight portion 234b, the thickness thereof The lower limit is preferably 1.5 mm, and further preferably 2.5 mm. The upper limit is preferably 4.5 mm, and more preferably 4 mm. The thickness of the high basis weight portion 234a, the low basis weight portion 234b (X direction, Y direction), and the non-block portion 236 described below is measured by the following method. The sample was cut into a specific size, and the measurement site was pressurized at 5 kPa for 10 minutes, and immediately after the weight was removed, the measurement was performed. The measurement site is set to include one or more of any one of the ventral portion, the crotch portion, and the dorsal portion in each of the sheets, and is obtained from the average of two diaper samples (the measurement portion is 6 or more). thickness. The diaper 10 is cut, for example, by a sharp razor in the longitudinal direction (Y direction) or the lateral direction (X direction) shown in Fig. 1, and the cross section of the cut sample is measured. In the case where it is difficult to measure with the naked eye, the cross section of the cut sample may be observed at a magnification of 20 to 50 times using, for example, a microscope (VHX-1000 manufactured by Keyence Corporation).

塊狀區域235係自吸收性芯體22之腹側部A起遍及背側部B而配置。而且，塊狀區域235包含設置於與腹側部A相對應之位置上之腹側部高基重部群237A、設置於與背側部B相對應之位置上之背側部高基重部群237B、及設置於與下襠部C相對應之位置上之下襠部高基重部群237C。各高基重部群連結。於各高基重部群中，沿著寬度方向配置之高基重部234a之數量不同。詳細而言，腹側部高基重部群237A及背側部高基重部群237B中之高基重部234a之配置數量較下襠部高基重部群237C中之高基重部234a之配置數量多。例如如圖4所示，於腹側部高基重部群237A及背側部高基重部群237B中，沿著寬度方向配置之高基重部234a之數量為5個，相對於此，於下襠部高基重部群237C中，沿著寬度方向配置之高基重部234a之數量為3個。於本實施形態中，高基重部234a之尺寸於各高基重部群中相同，因此，腹側部高基重部群237A及背側部高基重部群237B中之高基重部234a之配置數量較下襠部高基重部群237C中之高基重部234a之配置數量多即意味著腹側部A及背側部B中之塊狀區域235之寬度較下襠部C中之 塊狀區域235之寬度大。The block region 235 is disposed from the front side portion A of the absorbent core 22 over the back side portion B. Further, the block region 235 includes a front side high basis weight group 237A disposed at a position corresponding to the abdominal side portion A, and a back side high basis weight portion disposed at a position corresponding to the back side portion B. The group 237B and the lower portion of the crotch portion are disposed at a position corresponding to the crotch portion C. Each of the high base weight groups is connected. In each of the high basis weight groups, the number of the high basis weight portions 234a arranged along the width direction is different. Specifically, the number of the high basis weight portions 234a in the front side high base weight group 237A and the back side high basis weight group 237B is higher than the high basis weight portion 234a in the lower jaw high basis weight portion group 237C. There are a large number of configurations. For example, as shown in FIG. 4, in the front side high base weight group 237A and the back side high basis weight group 237B, the number of the high basis weight portions 234a arranged along the width direction is five. In the lower jaw high base weight group 237C, the number of high basis weight portions 234a arranged along the width direction is three. In the present embodiment, since the size of the high basis weight portion 234a is the same in each of the high basis weight portion groups, the high basis weight portion of the ventral portion high basis weight portion group 237A and the back side portion high basis weight portion group 237B. The arrangement number of 234a is larger than the arrangement of the high basis weight portion 234a of the lower jaw portion base portion 237C, which means that the width of the block portion 235 in the front side portion A and the back side portion B is lower than that in the lower portion C. In the middle The width of the block region 235 is large.

於吸收性芯體22中之塊狀區域235之長度方向外側及寬度方向外側配置有非塊狀區域236。即，吸收性芯體22包含含有高基重部234a及低基重部234b之塊狀區域235、及非塊狀區域236。非塊狀區域236係針對塊狀區域235之外周而遍及其整個區域將其包圍。塊狀區域235與非塊狀區域236係由位於塊狀區域235之最外周之低基重部234b所劃分。於非塊狀區域236中，其任意位置上之厚度及基重固定。A non-block region 236 is disposed on the outer side in the longitudinal direction and the outer side in the width direction of the block region 235 in the absorptive core 22 . That is, the absorbent core 22 includes a block region 235 including a high basis weight portion 234a and a low basis weight portion 234b, and a non-block portion region 236. The non-block region 236 surrounds the entire region of the block region 235 for the periphery thereof. The block region 235 and the non-block region 236 are divided by the low basis weight portion 234b located at the outermost periphery of the block region 235. In the non-block region 236, the thickness and the basis weight at any position are fixed.

藉由使吸收性芯體22之塊狀區域235與非塊狀區域236之邊界上之彎曲剛性(於下文對測定法進行敍述)變小，而將尿布10穿戴於包含曲面之身體時，尿布10柔軟地追隨身體之曲面，因此，產生容易穿戴尿布10之優點。根據上述方面，吸收性芯體22之彎曲剛性較佳為50g以下。The diaper 10 is worn by the diaper 10 when the diaper 10 is worn on the body including the curved surface by making the bending rigidity on the boundary between the bulk region 235 of the absorbent core 22 and the non-blocky region 236 (described below) 10 softly follows the curved surface of the body, thus producing the advantage of easy wearing of the diaper 10. According to the above aspect, the bending rigidity of the absorbent core 22 is preferably 50 g or less.

又，吸收體20較佳為於吸收液體後使液體迅速擴散，作為相關判斷指標較佳為液體擴散面積(於下文對測定法進行敍述)大。具體而言，作為本創作中使用之吸收體20，較佳為其液體擴散面積為260cm2 以上。Further, the absorber 20 preferably diffuses the liquid quickly after absorbing the liquid, and it is preferable that the liquid diffusion area (described below for the measurement method) is large as a correlation judgment index. Specifically, the absorbent body 20 used in the present invention preferably has a liquid diffusion area of 260 cm 2 or more.

如圖1所示，於本實施形態中，非塊狀區域236之厚度與塊狀區域235之高基重部234a之厚度大致相同。然而，非塊狀區域236之厚度與高基重部234a之厚度之關係並不限定於此，亦可為非塊狀區域236之厚度較大，亦可相反地而高基重部234a之厚度較大。具體而言，非塊狀區域236之厚度之下限值較佳為2mm，進而較佳為3mm。上限值較佳為8mm，進而較佳為7mm。厚度之測定方法如上所述。As shown in Fig. 1, in the present embodiment, the thickness of the non-block region 236 is substantially the same as the thickness of the high basis weight portion 234a of the block region 235. However, the relationship between the thickness of the non-block region 236 and the thickness of the high basis weight portion 234a is not limited thereto, and the thickness of the non-block portion 236 may be large, or vice versa, the thickness of the high basis weight portion 234a. Larger. Specifically, the lower limit of the thickness of the non-block region 236 is preferably 2 mm, and more preferably 3 mm. The upper limit is preferably 8 mm, and more preferably 7 mm. The method of measuring the thickness is as described above.

非塊狀區域236較佳為相較位於吸收性芯體22之長度方向端部之部位之寬度(即長度方向之長度)而位於寬度方向端部之部位之寬度(即寬度方向之長度)更寬。其原因在於：藉此，不會受褶皺應力影響而可確保尿布10之保形性，而容易穿戴尿布10。特佳為於腹側部A及背 側部B之任一者中滿足上述關係，較佳為於腹側部A及背側部B之兩者中滿足上述關係。The non-block-like region 236 is preferably a width (i.e., a length in the width direction) of a portion located at an end portion in the width direction with respect to a width (i.e., a length in the longitudinal direction) of a portion located at an end portion of the absorbent core 22 in the longitudinal direction. width. The reason for this is that the diaper 10 can be easily worn without being affected by the wrinkle stress and ensuring the shape retaining property of the diaper 10. Particularly good for the abdomen A and back The above relationship is satisfied in any of the side portions B, and it is preferable that the above relationship is satisfied in both the front side portion A and the back side portion B.

如之前已敍述般，塊狀區域235之高基重部234a及低基重部234b一體成形。除此以外，包含高基重部234a及低基重部234b之塊狀區域235與位於其外周之非塊狀區域236亦一體成形。一體成形之意思如之前已敍述般。As described above, the high basis weight portion 234a and the low basis weight portion 234b of the block region 235 are integrally formed. In addition to this, the block-shaped region 235 including the high basis weight portion 234a and the low basis weight portion 234b is integrally formed with the non-block-like region 236 located on the outer periphery thereof. The meaning of integral forming is as described above.

如圖1所示，吸收性芯體22中之塊狀區域235係於腹側部A中，超出側翼彈性構件163之端部163A而延伸至長度方向外側。同樣地，吸收性芯體22中之塊狀區域235係於背側部B中，超出側翼彈性構件163之端部163B而延伸至長度方向外側。藉由如此般設定側翼彈性構件163之端部之位置與吸收性芯體22中之塊狀區域235之配置位置之關係，而可有效地防止於側翼彈性構件163收縮時吸收體20於意料外之位置上撓曲。因此，於將尿布10穿戴於穿著者之身體時，尿布10不易變形，而容易使尿布10貼合於穿著者之身體。相對於此，例如，若如圖9所示之比較例1之尿布般側翼彈性構件163之端部163A越過吸收性芯體22中之塊狀區域235而延伸至長度方向外側，則於側翼彈性構件163收縮時，於塊狀區域235與非塊狀區域236之邊界部K(該邊界部K於尿布之寬度方向上延伸)吸收性芯體22容易撓曲，而難以將尿布穿戴於穿著者之身體。As shown in Fig. 1, the block-like region 235 in the absorbent core 22 is attached to the front side portion A and extends beyond the end portion 163A of the side flap elastic member 163 to the outer side in the longitudinal direction. Similarly, the block-like region 235 in the absorbent core 22 is attached to the back side portion B and extends beyond the end portion 163B of the side flap elastic member 163 to the outer side in the longitudinal direction. By setting the relationship between the position of the end portion of the side flap elastic member 163 and the arrangement position of the block region 235 in the absorbent core 22 in this manner, it is possible to effectively prevent the absorber body 20 from being unexpected when the side flap elastic member 163 is contracted. The position is flexed. Therefore, when the diaper 10 is worn on the wearer's body, the diaper 10 is not easily deformed, and the diaper 10 is easily attached to the wearer's body. On the other hand, for example, when the end portion 163A of the diaper-like side flap elastic member 163 of Comparative Example 1 as shown in FIG. 9 extends beyond the block-shaped region 235 in the absorbent core 22 to the outer side in the longitudinal direction, the side flap is elastic. When the member 163 is contracted, the absorbent core 22 is easily deflected at the boundary portion K between the block region 235 and the non-block region 236 (the boundary portion K extends in the width direction of the diaper), and it is difficult to wear the diaper to the wearer. The body.

就有效地防止由側翼彈性構件163之收縮而引起之吸收性芯體22之撓曲之觀點而言，吸收性芯體22中之塊狀區域235理想的是如本實施形態般超出側翼彈性構件163之兩端部163A、163B而延伸至長度方向外側。其中，若吸收性芯體22中之塊狀區域235越過側翼彈性構件163之2個端部163A、163B中之至少一個而延伸至長度方向外側，則可充分發揮本創作之效果。於吸收性芯體22中之塊狀區域235越過側翼彈性構件163之2個端部163A、163B中之一個而延伸至長度方向外 側之情形時，就尿布10之易穿戴性之方面而言，較佳為吸收性芯體22中之塊狀區域235越過靠近腹側部A之端部即端部163A而延伸至長度方向外側。From the viewpoint of effectively preventing the deflection of the absorbent core 22 caused by the contraction of the side elastic members 163, the block region 235 in the absorbent core 22 desirably exceeds the side elastic members as in the present embodiment. Both end portions 163A and 163B of 163 extend to the outer side in the longitudinal direction. However, when the block-shaped region 235 in the absorbent core 22 extends over at least one of the two end portions 163A and 163B of the side flap elastic member 163 and extends outward in the longitudinal direction, the effect of the present invention can be sufficiently exerted. The block region 235 in the absorbent core 22 extends over one of the two end portions 163A, 163B of the side flap elastic member 163 to extend in the longitudinal direction. In the case of the side, in terms of the wearability of the diaper 10, it is preferable that the block-like region 235 in the absorbent core 22 extends beyond the end portion 163A near the end portion of the abdominal portion A to the outer side in the longitudinal direction. .

就更有效地抑制塊狀區域235與非塊狀區域236之邊界部K上之吸收性芯體22之撓曲之觀點而言，如下情況較為有利，即關於作為安裝於尿布10之其他彈性構件之防漏壁彈性構件161，吸收性芯體22中之塊狀區域235亦超出該防漏壁彈性構件161之端部而延伸至長度方向外側。詳細而言，於本實施形態中，如圖1所示，吸收性芯體22中之塊狀區域235係於腹側部A中，超出防漏壁彈性構件161之端部161A而延伸至長度方向外側。同樣地，吸收性芯體22中之塊狀區域235係於背側部B中，超出防漏壁彈性構件161之端部161B而延伸至長度方向外側。From the viewpoint of more effectively suppressing the deflection of the absorbent core 22 on the boundary portion K between the block region 235 and the non-block region 236, it is advantageous in terms of other elastic members to be attached to the diaper 10. The leakage preventing wall member 161, the block-like region 235 of the absorbent core 22 extends beyond the end portion of the leakage preventing wall elastic member 161 to extend outward in the longitudinal direction. Specifically, in the present embodiment, as shown in FIG. 1, the block-shaped region 235 in the absorbent core 22 is attached to the front side portion A, and extends beyond the end portion 161A of the leakage preventing wall elastic member 161 to the length. Direction outside. Similarly, the block-like region 235 in the absorbent core 22 is attached to the back side portion B, and extends beyond the end portion 161B of the leakage preventing wall elastic member 161 to extend outward in the longitudinal direction.

於圖1所示之實施形態中，吸收性芯體22中之塊狀區域235超出防漏壁彈性構件161之兩端部161A、161B而延伸至長度方向外側，但亦可代替於此，而吸收性芯體22中之塊狀區域235越過側翼彈性構件163之2個端部163A、163B中之至少一個而延伸至長度方向外側。於此情形時，就尿布10之易穿戴性之方面而言，較佳為吸收性芯體22中之塊狀區域235越過靠近腹側部A之端部即端部161A而延伸至長度方向外側。In the embodiment shown in FIG. 1, the block-shaped region 235 in the absorbent core 22 extends beyond the both end portions 161A, 161B of the leakage preventing wall elastic member 161 to the outer side in the longitudinal direction, but may be substituted for this. The block-shaped region 235 in the absorbent core 22 extends over the longitudinal direction of the outer side of at least one of the two end portions 163A, 163B of the side flap elastic member 163. In this case, in terms of the ease of wearing of the diaper 10, it is preferable that the block-like region 235 in the absorbent core 22 extends beyond the end portion 161A near the end portion of the abdominal portion A to the outer side in the longitudinal direction. .

接下來，對上述尿布10之吸收體20之較佳之製造方法進行說明。於圖5中表示吸收體20之製造方法之一實施態樣及該實施態樣中使用之製造裝置。於以下之說明中，利用符號41表示吸收性芯體。吸收體20之製造裝置包含沿箭頭R1方向旋轉驅動之旋轉筒50、將吸收性芯體41之原料即含有高吸收性聚合物之吸收性材料45供給至旋轉筒50之外周面之導管60、配置於旋轉筒50之下游側之斜下方且沿箭頭R2方向旋轉驅動之傳料輥70、配置於旋轉筒50之圓周方向上之導管 60與傳料輥70之間之真空箱65、以經過真空箱65與旋轉筒50之間及傳料輥70與旋轉筒50之間之方式配置之作為片狀之透氣性構件之網帶75、及配置於傳料輥70之下方之真空輸送機80。Next, a preferred method of producing the absorbent body 20 of the diaper 10 will be described. Fig. 5 shows an embodiment of the manufacturing method of the absorbent body 20 and a manufacturing apparatus used in the embodiment. In the following description, the absorbent core is denoted by reference numeral 41. The manufacturing apparatus of the absorber 20 includes a rotating cylinder 50 that is rotationally driven in the direction of the arrow R1, and a conduit 60 that supplies the absorbent material 45 containing the superabsorbent polymer, which is a raw material of the absorbent core 41, to the outer peripheral surface of the rotating cylinder 50, a transfer roller 70 disposed obliquely below the downstream side of the rotary cylinder 50 and rotationally driven in the direction of the arrow R2, and a conduit disposed in the circumferential direction of the rotary cylinder 50 A vacuum box 65 between the 60 and the transfer roller 70, a mesh belt 75 which is disposed between the vacuum box 65 and the rotary cylinder 50 and between the transfer roller 70 and the rotary cylinder 50 as a sheet-like gas permeable member And a vacuum conveyor 80 disposed below the transfer roller 70.

旋轉筒50係如圖5所示形成圓筒狀，且受到來自馬達等原動機之動力而使形成其外周面之構件繞水平軸旋轉。於旋轉筒50之內側(旋轉軸側)之非旋轉部分形成有可使內部減壓之空間56。空間56中連接有抽氣風扇等公知之排氣裝置(未圖示)，藉由使該排氣裝置作動，而可將空間56內維持於負壓。另一方面，於旋轉筒50之內側(旋轉軸側)之空間57及58中連接有可取入裝置外之空氣之配管(未圖示)。The rotating cylinder 50 is formed into a cylindrical shape as shown in Fig. 5, and is driven by a motive from a motor or the like to rotate a member forming an outer peripheral surface thereof around a horizontal axis. A non-rotating portion on the inner side (rotational axis side) of the rotary cylinder 50 is formed with a space 56 for decompressing the inside. A known exhaust device (not shown) such as an exhaust fan is connected to the space 56, and by operating the exhaust device, the space 56 can be maintained at a negative pressure. On the other hand, a pipe (not shown) that can take in air outside the device is connected to the spaces 57 and 58 on the inner side (rotational axis side) of the rotary cylinder 50.

如圖5所示，於旋轉筒50之外周面，與製造之吸收性芯體41之形狀相對應之形狀之筒凹部51沿著R1方向空出相等間隔而形成有複數個。如圖6所示，於各筒凹部51之底面部配置有形成有多個微孔之網板52、及金屬製或樹脂製之難透氣性構件53。此處，難透氣性構件53係以突出之方式設置於網板52上，且以與上述低基重部234b、234b之形狀及位置相對應之方式配置。如圖6所示，由如此般配置之難透氣性構件53劃分之僅由網板52所構成之區域54成為與高基重部234a、234a相對應之部分，由難透氣性構件53劃分之部分之外周整個區域中之僅由網板52所構成之區域55成為與非塊狀部236、236相對應之部分。又，未形成筒凹部51之旋轉筒50之外周面之部分包括包含金屬製之剛體之旋轉筒50之框體且為非透氣性。As shown in Fig. 5, a plurality of cylindrical recesses 51 having a shape corresponding to the shape of the absorbent core 41 to be manufactured are formed on the outer peripheral surface of the rotary cylinder 50 at equal intervals in the R1 direction. As shown in FIG. 6, a mesh plate 52 in which a plurality of micropores are formed and a gas-impermeable member 53 made of metal or resin are disposed on the bottom surface of each of the cylindrical recesses 51. Here, the gas-impermeable member 53 is provided on the screen 52 so as to protrude, and is disposed so as to correspond to the shape and position of the low basis weights 234b and 234b. As shown in Fig. 6, the region 54 composed of only the mesh plate 52, which is divided by the gas-permeable member 53 arranged as such, is a portion corresponding to the high basis weight portions 234a, 234a, and is divided by the gas-impermeable member 53. The region 55 composed only of the stencil 52 in the entire outer peripheral portion becomes a portion corresponding to the non-block portions 236, 236. Further, the portion of the outer circumferential surface of the rotating cylinder 50 in which the cylindrical recessed portion 51 is not formed includes a frame body including the rotating cylinder 50 of a rigid metal body and is non-breathable.

導管60係如圖5所示，其一端側覆蓋位於維持於負壓之空間56上之旋轉筒50之外周面，於未圖示之另一端側包含纖維材料導入裝置。纖維材料導入裝置包含粉碎器，該粉碎器將例如片狀之木漿粉碎而製成解纖紙漿，並將該解纖紙漿(纖維材料)送入至導管內，且於導管60之中途包含導入高吸收性聚合物之高吸收性聚合物導入部。As shown in Fig. 5, the duct 60 has a one end side covering the outer peripheral surface of the rotating cylinder 50 which is located in the space 56 maintained in the negative pressure, and a fiber material introducing means is provided on the other end side (not shown). The fiber material introduction device includes a pulverizer that pulverizes, for example, a sheet of wood pulp to form a defibrated pulp, and feeds the defibrated pulp (fiber material) into the catheter, and introduces it in the middle of the catheter 60. A superabsorbent polymer introduction portion of a superabsorbent polymer.

傳料輥70包含具有透氣性之圓筒狀之外周部，且受到來自馬達 等原動機之動力而使其外周部沿R2方向旋轉。於傳料輥70之內側(旋轉軸側)之非旋轉部分形成有可使內部減壓之空間71。空間71中連接有抽氣風扇等公知之排氣裝置(未圖示)，藉由使該排氣裝置作動，而可將空間71內維持於負壓。The transfer roller 70 includes a cylindrical outer peripheral portion having gas permeability and is received from a motor Waiting for the motive power to rotate the outer peripheral portion in the R2 direction. A non-rotating portion on the inner side (rotating shaft side) of the transfer roller 70 is formed with a space 71 for decompressing the inside. A known exhaust device (not shown) such as an exhaust fan is connected to the space 71, and by operating the exhaust device, the space 71 can be maintained at a negative pressure.

真空箱65係於旋轉筒50之旋轉方向R1上配置於導管60之下游側端部61與傳料輥70之間。真空箱65具有箱狀之形狀，且於與旋轉筒50對向之部位包含朝向旋轉筒50方向開口之開口部。真空箱65係經由排氣管67而與抽氣風扇等公知之排氣裝置(未圖示)連接，且藉由該排氣裝置之作動而可將真空箱65內維持於負壓。The vacuum box 65 is disposed between the downstream end portion 61 of the duct 60 and the transfer roller 70 in the rotation direction R1 of the rotary cylinder 50. The vacuum box 65 has a box shape and includes an opening that opens toward the rotating cylinder 50 at a portion facing the rotating cylinder 50. The vacuum box 65 is connected to a known exhaust device (not shown) such as an exhaust fan via an exhaust pipe 67, and the inside of the vacuum box 65 can be maintained at a negative pressure by the operation of the exhaust device.

網帶75係具有網眼之帶狀之透氣性傳送帶呈環狀連結而成者，其由複數個自由輥及傳料輥70導引而於特定之路徑上連續地移動。網帶75係藉由傳料輥70之旋轉而驅動。網帶75於通過真空箱65之上述開口部之前方之期間，與旋轉筒50之外周面接觸，於傳料輥70與旋轉筒50最接近之最接近部附近自旋轉筒50之外周面離開而向傳料輥70上轉移。The mesh belt 75 is a belt-shaped gas permeable conveyor belt which is connected in a ring shape, and is guided by a plurality of free rollers and a transfer roller 70 to continuously move on a specific path. The mesh belt 75 is driven by the rotation of the transfer roller 70. The mesh belt 75 is in contact with the outer peripheral surface of the rotary cylinder 50 before passing through the opening portion of the vacuum chamber 65, and is separated from the outer peripheral surface of the rotary cylinder 50 near the closest portion of the transfer roller 70 and the rotary cylinder 50. The transfer to the transfer roller 70 is performed.

真空輸送機80包含架設於驅動輥81及從動輥82之環狀之透氣性傳送帶83、及隔著透氣性傳送帶83且配置於與傳料輥70對向之位置上之真空箱84。The vacuum conveyor 80 includes a ring-shaped gas permeable conveyor belt 83 that is stretched over the driving roller 81 and the driven roller 82, and a vacuum box 84 that is disposed at a position opposed to the conveying roller 70 via the gas permeable belt 83.

接下來，對使用上述吸收體之製造裝置連續地製造吸收體20(吸收性芯體41)之方法進行說明。首先，使分別連接至旋轉筒50內之空間56及真空箱65內之排氣裝置作動而使旋轉筒50內之空間56及真空箱65內為負壓。其原因在於：藉由將空間56內設為如上所述之負壓，而於導管60內產生將吸液性材料45搬送至旋轉筒50之外周面之氣流。繼而，使旋轉筒50及傳料輥70旋轉，並使真空輸送機80作動。繼而，若使上述纖維材料導入裝置作動而將纖維材料及高吸收性聚合物供給至導管60內，則該等吸液性材料45隨著導管60內流動之氣流而成為飛散 狀態並朝向旋轉筒50之外周面供給。尤其是，先供給紙漿等纖維材料，並使該纖維材料先堆積於旋轉筒50之外周面之後，供給纖維材料及高吸收性聚合物，藉此，可僅利用紙漿等纖維材料而形成所獲得之吸收體中之最非肌膚對向面側。Next, a method of continuously manufacturing the absorbent body 20 (absorbent core 41) using the above-described manufacturing apparatus of the absorbent body will be described. First, the space 56 connected to the inside of the rotary cylinder 50 and the exhaust device in the vacuum chamber 65 are actuated to make the space 56 in the rotary cylinder 50 and the inside of the vacuum chamber 65 a negative pressure. This is because the airflow of the liquid absorbing material 45 to the outer peripheral surface of the rotary cylinder 50 is generated in the duct 60 by setting the inside of the space 56 to the negative pressure as described above. Then, the rotary cylinder 50 and the transfer roller 70 are rotated, and the vacuum conveyor 80 is actuated. Then, when the fibrous material introduction device is actuated to supply the fibrous material and the superabsorbent polymer into the conduit 60, the liquid-absorbent material 45 becomes scattered along with the flow of air flowing in the conduit 60. The state is supplied toward the outer peripheral surface of the rotary cylinder 50. In particular, a fiber material such as pulp is first supplied, and the fiber material is first deposited on the outer peripheral surface of the rotary cylinder 50, and then the fiber material and the superabsorbent polymer are supplied, whereby the fiber material can be formed only by using a fiber material such as pulp. The most non-skin side of the absorbent body.

於由導管60覆蓋之部分進行搬送之期間，將吸液性材料(纖維材料與高吸收性聚合物之混合物)45抽吸至旋轉筒50之筒凹部51。吸液性材料45係如圖7所示，逐漸堆積於筒凹部51之各區域54及區域55之網板52上。於如此而獲得之堆積物46中，吸液性材料45堆積於難透氣性構件53上而成之部位(難透氣性構件53對應部)46a中之吸液性材料45之堆積量相對較少，其他部位(區域54對應部)46b及部位(區域55對應部)46c中之吸液性材料45之堆積量相對較多，從而堆積物46整體上具有凹凸構造。While the portion covered by the conduit 60 is being conveyed, the liquid absorbing material (mixture of the fibrous material and the superabsorbent polymer) 45 is sucked into the cylindrical recess 51 of the rotary cylinder 50. As shown in FIG. 7, the liquid-absorbent material 45 is gradually deposited on the respective regions 54 of the cylindrical recess 51 and the mesh plate 52 of the region 55. In the deposit 46 thus obtained, the amount of the liquid-absorbent material 45 in the portion where the liquid-absorbent material 45 is deposited on the gas-impermeable member 53 (the portion corresponding to the gas-impermeable member 53) 46a is relatively small. The amount of deposition of the liquid-absorbent material 45 in the other portions (region 54 corresponding portion) 46b and the portion (region 55 corresponding portion) 46c is relatively large, and the deposit 46 has an uneven structure as a whole.

繼而，若旋轉筒50進行旋轉而使筒凹部51到達真空箱65之對向位置，則筒凹部51內之堆積物46藉由來自真空箱65之抽吸而成為吸附於網帶75之狀態。筒凹部51內之堆積物46於上述狀態下搬送至緊靠傳料輥70與旋轉筒50之最接近部之前方，且於該最接近部附近，藉由來自傳料輥70側之抽吸而保持著吸附於網帶75之狀態自筒凹部51脫模，而向傳料輥70上轉移。Then, when the rotary cylinder 50 rotates and the cylindrical recess 51 reaches the opposite position of the vacuum box 65, the deposit 46 in the cylindrical recess 51 is adsorbed to the mesh belt 75 by suction from the vacuum box 65. The deposit 46 in the cylindrical recess 51 is conveyed in the above state immediately before the closest portion of the transfer roller 70 and the rotary cylinder 50, and in the vicinity of the closest portion, by suction from the transfer roller 70 side. The film is released from the cylinder recess 51 while being held by the mesh belt 75, and is transferred to the transfer roller 70.

如此，與網帶75一併轉移至傳料輥70上之具有凹凸構造之堆積物46保持著吸附於傳料輥70上之網帶75之狀態，而搬送至與真空輸送機80之交接部(傳料輥70之最下端部)，且於該交接部藉由真空箱84之抽吸而向真空輸送機80上轉移。Thus, the deposit 46 having the uneven structure transferred to the transfer roller 70 together with the mesh belt 75 is held in the state of the mesh belt 75 adsorbed on the transfer roller 70, and is transported to the interface with the vacuum conveyor 80. (the lowermost end portion of the transfer roller 70), and the transfer portion is transferred to the vacuum conveyor 80 by suction of the vacuum box 84.

於本實施形態之吸收體之製造裝置中，如圖5所示，於載置堆積物46之前之真空輸送機80上導入包含衛生紙或親水性不織布之被覆材42，並使堆積物46轉移至被覆材42上。而且，進而，藉由翻折板(未圖示)摺疊被覆材42而利用被覆材42包裹堆積物46之後，將由被覆材 42包裹之狀態之堆積物46以特定之間隔切斷，連續地製造切斷成相當於1個吸收體之尺寸之吸收體前驅物49。In the manufacturing apparatus of the absorbent body of the present embodiment, as shown in FIG. 5, the covering material 42 containing the toilet paper or the hydrophilic nonwoven fabric is introduced onto the vacuum conveyor 80 before the deposit 46 is placed, and the deposit 46 is transferred to On the covering material 42. Further, after the covering material 42 is folded by a folding plate (not shown) and the deposit 46 is wrapped by the covering material 42, the covering material is used. The deposit 46 in the state of the package 42 is cut at a specific interval, and the absorber precursor 49 cut into a size equivalent to one absorber is continuously produced.

繼而，於本實施形態之吸收體之製造裝置中，藉由加壓機構90將如此獲得之吸收體前驅物49壓縮，而使構成吸收體前驅物49之堆積物46之厚度積極地減少，從而獲得目標之吸收體20(吸收性芯體41)。如圖5所示，加壓機構90構成為包含至少一者之表面平滑之一對輥91、92，且可對導入至輥91、92間之被加壓物自上下表面進行加壓而於厚度方向上將其壓縮。Then, in the apparatus for manufacturing an absorbent body according to the present embodiment, the absorber precursor 49 thus obtained is compressed by the pressurizing mechanism 90, and the thickness of the deposit 46 constituting the absorber precursor 49 is actively reduced. The target absorbent body 20 (absorbent core 41) is obtained. As shown in FIG. 5, the pressurizing mechanism 90 is configured to include at least one surface smoothing pair of rollers 91, 92, and pressurize the pressed object introduced between the rollers 91, 92 from the upper and lower surfaces. It is compressed in the thickness direction.

若藉由加壓機構90壓縮吸收體前驅物49，則吸液性材料相對較多且厚度較大之部位(區域54對應部)46b及部位(區域55對應部)46c較吸液性材料45相對較少且厚度較小之部位(難透氣性構件53對應部)46a受到更強之壓縮。其結果，於使用上述製造裝置而製造之吸收體中，堆積物46中之部位(區域54對應部)46b(凸部)及部位(區域55對應部)46c成為吸收體20(吸收性芯體41)中密度相對較高之高基重部234a及非塊狀區域236，堆積物46中之部位(難透氣性構件53對應部)46a(凹部)成為吸收體41中密度相對較低之低基重部234b。When the absorber precursor 49 is compressed by the pressurizing mechanism 90, the portion (the region 54 corresponding portion) 46b and the portion (the region 55 corresponding portion) 46c having a relatively large thickness of the liquid-absorbent material are larger than the liquid-absorbent material 45. The portion (the corresponding portion of the gas-impermeable member 53) 46a which is relatively small and has a small thickness is more strongly compressed. As a result, in the absorber manufactured by using the above-described manufacturing apparatus, the portion (region 54 corresponding portion) 46b (protrusion portion) and the portion (region 55 corresponding portion) 46c in the deposit 46 become the absorber 20 (absorbent core) 41) The high basis weight portion 234a and the non-block portion 236 having a relatively high medium density, and the portion (the portion corresponding to the gas-impermeable member 53) 46a (concave portion) in the deposit 46 becomes a relatively low density in the absorber 41. Base weight portion 234b.

於圖8(a)及(b)中表示本實施形態之尿布10中所使用之吸收性芯體22之其他實施形態。圖8(a)及(b)所示之吸收性芯體22A、22B係與圖1所示之吸收性芯體22同樣地，具有包含基重相對較高且具有朝向非肌膚抵接面側突出之凸形狀之高基重部234a及與高基重部234a鄰接且基重相對較低並朝向肌膚抵接面側凹下之低基重部234b的塊狀構造。高基重部234a與低基重部234b一體成形。吸收性芯體22A、22B係其非肌膚抵接面側成為凹凸構造，且肌膚抵接面側平坦。Other embodiments of the absorbent core 22 used in the diaper 10 of the present embodiment are shown in Figs. 8(a) and (b). The absorbent cores 22A and 22B shown in Figs. 8(a) and 8(b) have a relatively high basis weight and a non-skin contact surface side, similarly to the absorbent core 22 shown in Fig. 1 . The protruding base portion 234a having a convex shape and a block-like structure having a low basis weight portion 234b which is adjacent to the high basis weight portion 234a and has a relatively low basis weight and which is recessed toward the skin contact surface side. The high basis weight portion 234a is integrally formed with the low basis weight portion 234b. In the absorbent cores 22A and 22B, the non-skin contact surface side has a concavo-convex structure, and the skin contact surface side is flat.

於吸收性芯體22A、22B中之塊狀區域之長度方向外側及寬度方向外側配置有非塊狀區域236。即，吸收性芯體22A、22B包含含有高基重部234a及低基重部234b之塊狀區域、及非塊狀區域236。非塊狀 區域236係針對塊狀區域之周圍而遍及其整個區域將其包圍。A non-block region 236 is disposed on the outer side in the longitudinal direction and the outer side in the width direction of the block regions in the absorbent core bodies 22A and 22B. That is, the absorptive core bodies 22A and 22B include a block-shaped region including the high basis weight portion 234a and the low basis weight portion 234b, and the non-block-like region 236. Non-blocky Region 236 surrounds the entire area of the block region for its surroundings.

吸收性芯體22A、22B中之塊狀區域係自腹側部A起遍及背側部B而配置。而且，塊狀區域包含設置於與腹側部A相對應之位置上之腹側部高基重部群237A、設置於與背側部B相對應之位置上之背側部高基重部群237B、及設置於與下襠部C相對應之位置上之下襠部高基重部群237C。各高基重部群連結。腹側部高基重部群237A及背側部高基重部群237B中之高基重部234a之配置數量較下襠部高基重部群237C中之高基重部234a之配置數量多。於圖8(a)所示之實施形態中，於腹側部高基重部群237A及背側部高基重部群237B中，沿著寬度方向配置之高基重部234a之數量為5個或4個，相對於此，於下襠部高基重部群237C中，沿著寬度方向配置之高基重部234a之數量為3個。於圖8(b)所示之實施形態中，於腹側部高基重部群237A及背側部高基重部群237B中，沿著寬度方向配置之高基重部234a之數量為6個或4個，相對於此，於下襠部高基重部群237C中，沿著寬度方向配置之高基重部234a之數量為2個。如此般，各實施形態之吸收性芯體22A、22B中，腹側部A及背側部B中之塊狀區域之寬度均大於下襠部C中之塊狀區域之寬度。於使用該等吸收性芯體22A、22B之情形時，亦發揮與使用圖1所示之吸收性芯體22之情形相同之有利之效果。The block regions in the absorbent cores 22A and 22B are disposed from the front side portion A to the back side portion B. Further, the block region includes a front side high base portion group 237A disposed at a position corresponding to the front side portion A, and a back side portion high basis weight group disposed at a position corresponding to the back side portion B. 237B and a lower portion of the base portion 237C disposed at a position corresponding to the lower jaw portion C. Each of the high base weight groups is connected. The number of the high basis weight portions 234a of the front side high base weight group 237A and the back side high base weight group 237B is larger than the number of the high basis weight portions 234a of the lower jaw portion high basis weight group 237C. . In the embodiment shown in Fig. 8(a), the number of the high basis weight portions 234a arranged along the width direction in the front side high base weight group 237A and the back side high basis weight group 237B is 5 In contrast, in the lower crotch portion high basis weight group 237C, the number of the high basis weight portions 234a arranged along the width direction is three. In the embodiment shown in Fig. 8 (b), the number of the high basis weight portions 234a arranged along the width direction in the front side high base portion group 237A and the back side portion high basis weight group group 237B is 6 In contrast, in the lower crotch portion high basis weight group 237C, the number of the high basis weight portions 234a arranged along the width direction is two. As described above, in the absorbent core bodies 22A and 22B of the respective embodiments, the widths of the block-shaped regions in the front side portion A and the back side portion B are larger than the width of the block-shaped region in the lower jaw portion C. When the absorbent cores 22A and 22B are used, the same advantageous effects as in the case of using the absorbent core 22 shown in Fig. 1 are exerted.

以上，針對本創作，根據其較佳之實施形態而進行了說明，但本創作之範圍並不限制於上述實施形態。例如，上述實施形態係將本創作之吸收性物品應用於展開型拋棄式尿布之例，但本創作亦可同樣地應用於展開型拋棄式尿布以外之吸收性物品例如短褲型吸收性物品等。Although the present invention has been described above based on the preferred embodiment, the scope of the present invention is not limited to the above embodiment. For example, the above embodiment is an example in which the absorbent article of the present invention is applied to an unfolded disposable diaper, but the present invention can be similarly applied to an absorbent article such as a pants-type absorbent article other than the unfolded disposable diaper.

又，於上述實施形態中，吸收性芯體22中之塊狀區域235係肌膚抵接面側平坦且其非肌膚抵接面側成為凹凸，但亦可代替於此而將非肌膚抵接面側形成為平坦且對其肌膚抵接面側賦予凹凸。Further, in the above-described embodiment, the block-like region 235 in the absorbent core 22 is flat on the skin contact surface side and the non-skin contact surface side is uneven. However, the non-skin contact surface may be replaced instead. The side is formed flat and unevenness is imparted to the skin contact surface side.

關於上述實施形態，本創作進而揭示以下之吸收性物品。Regarding the above embodiment, the present invention further discloses the following absorbent article.

<1><1>

一種吸收性物品，其包含正面片材、背面片材及配置於該正面片材與該背面片材之間之吸收體，於該正面片材之沿著長度方向之兩側部之位置上配置有於長度方向上延伸之防漏壁，進而包含自該吸收體之沿著長度方向之兩側緣向寬度方向外側延伸之側翼，上述吸收體包含含有吸收聚合物之吸收性芯體，上述吸收性芯體包含塊狀區域、及位於該塊狀區域之外周之非塊狀區域，上述塊狀區域具有包含基重相對較高之複數個高基重部及基重相對較低之低基重部的塊狀構造，各高基重部各自之周圍係遍及其整個區域由該低基重部包圍而各自獨立，於長度方向上延伸之側翼彈性構件以伸長狀態配置於上述側翼，上述塊狀區域越過配置有上述側翼彈性構件之端部而向長度方向外側延伸。An absorbent article comprising a front sheet, a back sheet, and an absorbent body disposed between the front sheet and the back sheet, disposed at positions on both sides of the front sheet along the longitudinal direction The leakage preventing wall extending in the longitudinal direction further comprises a side wing extending outward from the both sides of the absorbent body in the longitudinal direction, wherein the absorbent body comprises an absorbent core containing an absorbing polymer, and the absorption The core body comprises a block region and a non-block region located outside the block region, wherein the block region has a plurality of high basis weights having a relatively high basis weight and a low basis weight having a relatively low basis weight a block-like structure in which each of the high basis weight portions is surrounded by the low basis weight portion and is independent of each other, and the side wing elastic members extending in the longitudinal direction are disposed on the side flaps in an extended state, and the block shape is The region extends beyond the end portion where the side flap elastic member is disposed and extends outward in the longitudinal direction.

<2><2>

如<1>之吸收性物品，其中於上述防漏壁之自由端，於該防漏壁之長度方向上延伸之防漏壁彈性構件以伸長狀態配置，上述塊狀區域越過該防漏壁彈性構件之端部而向長度方向外側延伸。The absorbent article according to <1>, wherein the leakage preventing wall elastic member extending in the longitudinal direction of the leakage preventing wall is disposed in an extended state at a free end of the leakage preventing wall, and the block-shaped region is elastic over the leakage preventing wall The end of the member extends outward in the longitudinal direction.

<3><3>

如<1>或<2>之吸收性物品，其中上述塊狀區域係其肌膚抵接面側平坦，且其非肌膚抵接面側包含具有朝向上述背面片材側突出之凸形狀之上述高基重部、及自上述背面片材側朝向上述正面片材側凹下之上述低基重部。The absorbent article according to <1> or <2>, wherein the block-like region is flat on the skin contact surface side, and the non-skin contact surface side includes the above-mentioned high convex shape protruding toward the back sheet side. a base weight portion and the low basis weight portion recessed from the back sheet side toward the front sheet side.

<4><4>

如<1>至<3>中任一項之吸收性物品，其中上述非塊狀區域中，位於寬度方向端部之部位之寬度比位於上述吸收性芯體之長度方向端部之部位之寬度更寬。The absorbent article according to any one of <1> to <3> wherein, in the non-block-like region, a width of a portion located at an end portion in the width direction is greater than a width of a portion located at an end portion of the absorbent core in a longitudinal direction. Wider.

<5><5>

如<3>或<4>之吸收性物品，其中上述吸收性芯體係於最非肌膚對向面側形成有紙漿單體之層。The absorbent article according to <3> or <4>, wherein the absorbent core system has a layer of a pulp monomer formed on the most non-skin facing side.

<6><6>

如<1>至<5>中任一項之吸收性物品，其包含位於上述物品之長度方向之中央區域之下襠部、以及自該下襠部起分別向長度方向前方及後方延伸之腹側部及背側部，上述腹側部之左右兩側緣及上述背側部之左右兩側緣分別相較上述下襠部之左右兩側緣更向寬度方向外側延伸，上述下襠部之左右兩側緣係朝向上述物品之寬度方向內側呈圓弧狀彎曲，上述物品整體上具有上述物品之長度方向之中央區域朝著內側變細之形狀，上述正面片材及上述背面片材分別自上述吸收體之左右兩側緣及前後兩端緣向外側延伸。The absorbent article according to any one of <1> to <5>, comprising: a crotch portion located below a central portion in a longitudinal direction of the article, and a belly extending forward and rearward from the crotch portion toward the longitudinal direction a side portion and a back side portion, wherein the left and right side edges of the front side portion and the left and right side edges of the back side portion extend outward in the width direction from the left and right side edges of the lower jaw portion, and the lower jaw portion The left and right side edges are curved in an arc shape toward the inner side in the width direction of the article, and the article as a whole has a shape in which the central portion in the longitudinal direction of the article is tapered toward the inner side, and the front sheet and the back sheet are respectively The left and right side edges and the front and rear end edges of the absorbent body extend outward.

<7><7>

如<1>至<6>中任一項之吸收性物品，其中於上述物品之上述背側部側之長度方向端部配置有腰褶皺形成用之彈性片材，於上述彈性片材中，複數根彈性構件中位於靠近腰部開口緣之位置上之彈性構件自上述物品之寬度方向上之一側緣部之附近之位置起遍及另一側緣部之附近之位置而連續地配置。The absorbent article according to any one of the above aspects, wherein the elastic sheet for forming a waist gather is disposed at an end portion of the article on the back side of the back side in the longitudinal direction, and in the elastic sheet, Among the plurality of elastic members, the elastic member located at a position close to the opening edge of the waist is continuously disposed from a position in the vicinity of one side edge portion in the width direction of the article to a position in the vicinity of the other side edge portion.

<8><8>

如<7>之吸收性物品，其中於上述彈性片材中，位於較上述彈性構件更靠上述吸收體之位置上之彈性構件僅配置於上述物品之寬度 方向上之左右之兩側部，於寬度方向之中央區域未配置該彈性構件。The absorbent article according to <7>, wherein in the elastic sheet, the elastic member located at a position closer to the absorbent body than the elastic member is disposed only in the width of the article The elastic member is not disposed in the central portion in the width direction on both sides of the left and right in the direction.

<9><9>

如<1>至<8>中任一項之吸收性物品，其中上述低基重部形成於上述吸收體之長度方向及寬度方向上延伸之正交之格子狀之形狀，且上述高基重部位於由該低基重部所形成之格子內。The absorbent article according to any one of <1> to <8> wherein the low basis weight portion is formed in an orthogonal lattice shape extending in the longitudinal direction and the width direction of the absorbent body, and the high basis weight The portion is located in a lattice formed by the low basis weight.

<10><10>

如<1>至<9>中任一項之吸收性物品，其中各高基重部之形狀相同，且俯視時形成矩形。The absorbent article according to any one of <1> to <9> wherein each of the high basis weight portions has the same shape and is formed in a rectangular shape in a plan view.

<11><11>

如<1>至<10>中任一項之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之下限值為20%。The absorbent article according to any one of <1> to <10> wherein the lower basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 20%.

<12><12>

如<11>之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之下限值為30%。The absorbent article according to <11>, wherein a lower limit of the basis weight of the low basis weight portion with respect to the basis weight of the high basis weight portion is 30%.

<13><13>

如<1>至<12>中任一項之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之上限值為80%。The absorbent article according to any one of <1> to <12> wherein the upper limit of the basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 80%.

<14><14>

如<13>之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之上限值為70%。The absorbent article according to <13>, wherein the upper limit of the basis weight of the low basis weight portion with respect to the basis weight of the high basis weight portion is 70%.

<15><15>

如<1>至<14>中任一項之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之下限值為30%。The absorbent article according to any one of <1> to <14> wherein the lower limit of the thickness of the low basis weight portion with respect to the thickness of the high basis weight portion is 30%.

<16><16>

如<15>之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之下限值為40%。The absorbent article according to <15>, wherein the lower limit of the thickness of the low basis weight portion with respect to the thickness of the high basis weight portion is 40%.

<17><17>

如<1>至<16>中任一項之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之上限值為90%。The absorbent article according to any one of <1> to <16> wherein the upper limit of the thickness of the low basis weight portion with respect to the thickness of the high basis weight portion is 90%.

<18><18>

如<17>之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之上限值為80%。The absorbent article according to <17>, wherein the upper limit of the thickness of the low basis weight portion with respect to the thickness of the high basis weight portion is 80%.

<19><19>

如<1>至<18>中任一項之吸收性物品，其係展開型拋棄式尿布。The absorbent article according to any one of <1> to <18> which is an unfolded disposable diaper.

<20><20>

如<1>至<18>中任一項之吸收性物品，其係短褲型拋棄式尿布。The absorbent article according to any one of <1> to <18> which is a pants-type disposable diaper.

[實施例][Examples]

以下，利用實施例對本創作更詳細地進行說明。然而，本創作之範圍並不限制於上述實施例。Hereinafter, the present creation will be described in more detail by way of examples. However, the scope of the present creation is not limited to the above embodiment.

[實施例1][Example 1]

製造圖1至圖3所示之構造之幼兒用展開型拋棄式尿布。吸收體之基重係於高基重部及非塊狀區域中為570g/m2 ，於低基重部中為292g/m2 。吸收體係包含解纖紙漿與聚丙烯酸系之高吸收性聚合物之混合積纖體者。解纖紙漿與高吸收性聚合物之質量比為7：10。針對該尿布而於著扣帶L部中於寬度方向上延伸之彎摺線之位置上將其彎折時之彎曲剛性為以下之表1所示之值。該彎曲剛性係成為尿布之柔軟度之指標者。針對該尿布利用以下之方法對尿布之穿戴性進行評估，且測定液體擴散面積。將其等之結果示於以下之表1。The unfolded disposable diaper for children of the configuration shown in Figs. 1 to 3 was produced. The base absorbent body based on the weight of the high basis weight portion and the non-bulk region of 570g / m 2, the low basis weight portion as 292g / m 2. The absorption system comprises a mixed body of defibrated pulp and a polyacrylic superabsorbent polymer. The mass ratio of defibrated pulp to superabsorbent polymer was 7:10. The bending rigidity when the diaper was bent at the position of the bending line extending in the width direction in the buckle L portion was a value shown in Table 1 below. This bending rigidity is an indicator of the softness of the diaper. The wearability of the diaper was evaluated for the diaper by the following method, and the liquid diffusion area was measured. The results of these and the like are shown in Table 1 below.

[尿布之穿戴性][Natural wearability]

使幼兒模型穿戴尿布之情形時，觀察著扣帶部之摺疊之狀態， 按照以下之指標，對穿戴性進行評估。When the child model is worn with a diaper, the state of folding of the buckle portion is observed. The wearability is evaluated according to the following indicators.

著扣帶部為平坦之狀態之情形：A(良好)The case where the buckle portion is flat: A (good)

著扣帶部向內側彎曲之情形：B(合格)The case where the buckle portion is bent inward: B (qualified)

著扣帶部向內側彎折之情形：C(較差)The case where the buckle portion is bent inward: C (poor)

[尿布之彎曲剛性][Bending rigidity of diapers]

使用柔軟度測試儀對測定樣品之彎曲剛性進行測定。柔軟度測試儀之測定值越小，表示該測定樣品越容易彎折，越柔軟且易穿戴性或貼合性越良好。利用柔軟度測試儀之彎曲剛性之測定方法如下所述。自作為樣品之尿布中除去腿褶皺及立起褶皺而製作與吸收體大致同等寬度之測定樣品，將該測定樣品以使該測定樣品之長度方向與該槽正交之方式配置於刻有寬度為40mm之槽之柔軟度測試儀之支撐台上。繼而，利用厚度為2mm之刮板按壓測定樣品(吸收體)之著扣帶部中央，測定該測定樣品彎折所需之力。將測定樣品之中央之3處之平均值設為測定值。作為柔軟度測試儀，例如，可使用大榮科學精機製作所製造之質感試驗機(柔軟度測試儀法)、HOM-3型。The bending rigidity of the measurement sample was measured using a softness tester. The smaller the measured value of the softness tester, the easier the bending of the measurement sample is, the softer the fabric, and the better the wearability or the fit. The measurement method of the bending rigidity by the softness tester is as follows. A measurement sample having substantially the same width as the absorbent body is prepared by removing the leg gathers and rising the wrinkles from the diaper as a sample, and the measurement sample is placed at an engraved width so that the longitudinal direction of the measurement sample is orthogonal to the groove. 40mm groove softness tester on the support table. Then, the center of the buckle portion of the sample (absorber) was pressed with a squeegee having a thickness of 2 mm, and the force required for bending the measurement sample was measured. The average value of the three points in the center of the measurement sample was taken as the measured value. As the softness tester, for example, a texture tester (softness tester method) manufactured by Daiei Scientific Seiki Co., Ltd., and a HOM-3 type can be used.

[液體擴散面積][Liquid diffusion area]

以自尿布中之吸收體之中央部起朝向尿布長度方向腹側30mm之位置為注入點，利用帶有注入口之透明丙烯酸板對注入點施加8.5g/cm2 之荷重，並且注入160cc之生理鹽水。繼而，於注入10分鐘後測定液體擴散面積。The injection point was taken from the central portion of the absorbent body in the diaper toward the ventral side of the diaper length direction, and a load of 8.5 g/cm 2 was applied to the injection point by a transparent acrylic plate with an injection port, and a physiological force of 160 cc was injected. brine. Then, the liquid diffusion area was measured after 10 minutes of injection.

[實施例2][Embodiment 2]

製造圖1至圖3所示之構造之幼兒用展開型拋棄式尿布。吸收體之基重係於高基重部及非塊狀區域中為460g/m2 ，於低基重部中為170g/m2 。吸收體係包含解纖紙漿與聚丙烯酸系之高吸收性聚合物之混合積纖體者。解纖紙漿與高吸收性聚合物之質量比為10.8：10。除此以外，與實施例1相同。對該尿布進行與實施例1相同之測定及評 估。將其結果示於以下之表1。The unfolded disposable diaper for children of the configuration shown in Figs. 1 to 3 was produced. The base absorbent body based on the weight of the high basis weight portion and the non-bulk region of 460g / m 2, the low basis weight portion as 170g / m 2. The absorption system comprises a mixed body of defibrated pulp and a polyacrylic superabsorbent polymer. The mass ratio of the defibrated pulp to the superabsorbent polymer was 10.8:10. Other than this, it is the same as that of the first embodiment. The diaper was subjected to the same measurement and evaluation as in Example 1. The results are shown in Table 1 below.

[比較例1][Comparative Example 1]

製造圖9所示之尿布。於該尿布中，於腹側部A中，相較吸收性芯體22之塊狀區域235而側翼彈性構件163之端部163A向長度方向外側延伸。除此以外之構造與實施例1之尿布相同。對該尿布進行與實施例1相同之測定及評估。將其結果示於以下之表1。A diaper shown in Fig. 9 was produced. In the diaper, in the abdominal side portion A, the end portion 163A of the side flap elastic member 163 extends outward in the longitudinal direction from the block region 235 of the absorbent core 22. The construction other than this was the same as that of the diaper of Example 1. The diaper was subjected to the same measurement and evaluation as in Example 1. The results are shown in Table 1 below.

[比較例2][Comparative Example 2]

製造圖10所示之尿布。於該尿布中，於吸收性芯體22中不存在塊狀區域，著眼於吸收性芯體22之任一部位，厚度及基重均相同。除此以外之構造與比較例1之尿布相同。對該尿布進行與實施例1相同之測定及評估。將其結果示於以下之表1。A diaper shown in Fig. 10 was produced. In the diaper, a block-like region is not present in the absorbent core 22, and attention is paid to any portion of the absorbent core 22, and the thickness and the basis weight are the same. The structure other than this was the same as that of the diaper of Comparative Example 1. The diaper was subjected to the same measurement and evaluation as in Example 1. The results are shown in Table 1 below.

[比較例3][Comparative Example 3]

製造圖9所示之尿布。該尿布係於腹側部A中，相較吸收性芯體22之塊狀區域235而側翼彈性構件163之端部163A向長度方向外側延伸。除此以外之構造與實施例2之尿布相同。對該尿布進行與實施例2相同之測定及評估。將其結果示於以下之表1。A diaper shown in Fig. 9 was produced. The diaper is attached to the front side portion A, and the end portion 163A of the side flap elastic member 163 extends outward in the longitudinal direction from the block portion 235 of the absorbent core 22. The construction other than this was the same as that of the diaper of Example 2. The diaper was subjected to the same measurement and evaluation as in Example 2. The results are shown in Table 1 below.

根據表1所示之結果可知：實施例1及2之尿布(本創作品)體現出不會損壞穿戴性、柔軟且液體擴散面積較大之塊狀區域之優點。相對於此，於比較例1及3之尿布中，雖然柔軟且液體擴散面積較大，但吸收性芯體會於塊狀區域與非塊狀區域之邊界部撓曲，因此，穿戴性降低。比較例2之尿布因於吸收性芯體未形成塊狀區域而吸收體之撓曲 或由撓曲所引起之穿戴性之降低不會發生，但因未形成塊狀區域而吸收體之彎曲力矩變高。又，無法使液體擴散面積變大。According to the results shown in Table 1, the diapers (this creation) of Examples 1 and 2 exhibited the advantage of not damaging the bulky area which is wearable, soft and has a large liquid diffusion area. On the other hand, in the diapers of Comparative Examples 1 and 3, although the soft and liquid diffusion area was large, the absorbent core was bent at the boundary between the block region and the non-block region, and thus the wearability was lowered. The diaper of Comparative Example 2 was deflected by the absorbent body because the absorbent core did not form a block region Or the decrease in the wearability caused by the deflection does not occur, but the bending moment of the absorber becomes high because the block region is not formed. Moreover, the liquid diffusion area cannot be made large.

10‧‧‧尿布10‧‧‧ diapers

21‧‧‧正面片材21‧‧‧Front sheet

22‧‧‧吸收性芯體22‧‧‧Absorbable core

24‧‧‧側翼24‧‧‧Flanking

161‧‧‧防漏壁彈性構件161‧‧‧Leak-proof wall elastic member

161A‧‧‧端部161A‧‧‧End

161B‧‧‧端部161B‧‧‧End

162‧‧‧防漏壁形成用片材162‧‧‧Shelf for leak prevention wall formation

163‧‧‧側翼彈性構件163‧‧‧Flanking elastic members

163A‧‧‧端部163A‧‧‧End

163B‧‧‧端部163B‧‧‧End

164‧‧‧腰褶皺形成用之彈性片材164‧‧‧ Elastic sheet for waist fold formation

165a‧‧‧彈性構件165a‧‧‧Flexible components

165b‧‧‧彈性構件165b‧‧‧Flexible components

234a‧‧‧高基重部234a‧‧‧High base

234b‧‧‧低基重部234b‧‧‧Low basis weight

235‧‧‧塊狀區域235‧‧‧block area

236‧‧‧非塊狀區域236‧‧‧ non-blocky areas

237A‧‧‧腹側部高基重部群237A‧‧‧ ventral high base group

237B‧‧‧背側部高基重部群237B‧‧‧Back side high base weight group

237c‧‧‧下襠部高基重部群237c‧‧‧The lower part of the lower part of the Ministry of Health

A‧‧‧腹側部A‧‧‧ ventral side

B‧‧‧背側部B‧‧‧Back side

C‧‧‧下襠部C‧‧‧Lower Department

CL‧‧‧長度方向中心線CL‧‧‧ Length direction centerline

F‧‧‧緊固帶F‧‧‧ fastening tape

K‧‧‧邊界部K‧‧‧Border Department

W‧‧‧腰部開口緣W‧‧‧ waist opening edge

X‧‧‧寬度方向X‧‧‧Width direction

Y‧‧‧長度方向Y‧‧‧ Length direction

Claims (20)

一種吸收性物品，其包含正面片材、背面片材及配置於該正面片材與該背面片材之間之吸收體，於該正面片材之沿著長度方向之兩側部之位置上配置有於長度方向上延伸之防漏壁，進而包含自該吸收體之沿著長度方向之兩側緣向寬度方向外側延伸之側翼，上述吸收體包含含有高吸收聚合物之吸收性芯體，上述吸收性芯體包含塊狀區域、及位於該塊狀區域之外周之非塊狀區域，上述塊狀區域具有包含基重相對較高之複數個高基重部及基重相對較低之低基重部的塊狀構造，各高基重部各自之周圍係遍及其整個區域由該低基重部包圍而各自獨立，於長度方向上延伸之側翼彈性構件以伸長狀態配置於上述側翼，上述塊狀區域越過配置有上述側翼彈性構件之端部而向長度方向外側延伸。An absorbent article comprising a front sheet, a back sheet, and an absorbent body disposed between the front sheet and the back sheet, disposed at positions on both sides of the front sheet along the longitudinal direction a leakage preventing wall extending in the longitudinal direction, further comprising a side wing extending outward from the both sides of the absorbent body in the longitudinal direction, wherein the absorbent body comprises an absorbent core containing a superabsorbent polymer, The absorptive core comprises a block region and a non-block region located outside the block region, the block region having a plurality of high basis weights having a relatively high basis weight and a low base having a relatively low basis weight a block structure having a weight portion in which each of the high basis weight portions is surrounded by the low basis weight portion and is independent of each other, and the side wing elastic members extending in the longitudinal direction are disposed on the side flaps in an extended state, the block The region is extended outward in the longitudinal direction beyond the end portion where the side flap elastic member is disposed. 如請求項1之吸收性物品，其中於上述防漏壁之自由端，於該防漏壁之長度方向上延伸之防漏壁彈性構件以伸長狀態配置，上述塊狀區域越過該防漏壁彈性構件之端部而向長度方向外側延伸。The absorbent article of claim 1, wherein the leakage preventing wall elastic member extending in the longitudinal direction of the leakage preventing wall is disposed in an extended state at a free end of the leakage preventing wall, and the block region is elastic over the leakage preventing wall The end of the member extends outward in the longitudinal direction. 如請求項1之吸收性物品，其中上述塊狀區域係其肌膚抵接面側平坦，且其非肌膚抵接面側包含具有朝向上述背面片材側突出之凸形狀之上述高基重部及自上述背面片材側朝向上述正面片材側凹下之上述低基重部。The absorbent article according to claim 1, wherein the block-shaped region is flat on the skin contact surface side, and the non-skin contact surface side includes the high basis weight portion having a convex shape protruding toward the back sheet side and The low basis weight portion recessed from the side of the back sheet toward the side of the front sheet. 如請求項1之吸收性物品，其中上述非塊狀區域中，位於寬度方 向端部之部位之寬度比位於上述吸收性芯體之長度方向端部之部位之寬度更寬。The absorbent article of claim 1, wherein the non-blocky region is located at a width The width of the portion toward the end portion is wider than the width of the portion located at the end portion of the absorbent core in the longitudinal direction. 如請求項3或4之吸收性物品，其中上述吸收性芯體係於最非肌膚對向面側形成有紙漿單體之層。The absorbent article of claim 3 or 4, wherein the absorbent core system has a layer of pulp monomer formed on the most non-skin facing side. 如請求項1之吸收性物品，其包含位於上述物品之長度方向之中央區域之下襠部、以及自該下襠部起分別向長度方向前方及後方延伸之腹側部及背側部，上述腹側部之左右兩側緣及上述背側部之左右兩側緣分別相較上述下襠部之左右兩側緣更向寬度方向外側延伸，上述下襠部之左右兩側緣係朝向上述物品之寬度方向內側呈圓弧狀彎曲，上述物品整體上具有上述物品之長度方向之中央區域朝著內側變細之形狀，上述正面片材及上述背面片材分別自上述吸收體之左右兩側緣及前後兩端緣向外側延伸。The absorbent article of claim 1, comprising: a crotch portion located below a central region in a longitudinal direction of the article, and a belly portion and a back portion extending forward and rearward from the crotch portion in the longitudinal direction, The left and right side edges of the front side portion and the left and right side edges of the back side portion respectively extend outward in the width direction from the left and right side edges of the lower jaw portion, and the left and right sides of the lower jaw portion face the article The inner side in the width direction is curved in an arc shape, and the entire article has a shape in which the central portion in the longitudinal direction of the article is tapered toward the inner side, and the front sheet and the back sheet are respectively from the left and right sides of the absorber. And the front and rear edges extend outward. 如請求項1之吸收性物品，其中於上述物品之上述背側部側之長度方向端部配置有腰褶皺形成用之彈性片材，於上述彈性片材中，複數根彈性構件中位於靠近腰部開口緣之位置上之彈性構件自上述物品之寬度方向上之一側緣部之附近之位置起遍及另一側緣部之附近之位置而連續地配置。The absorbent article according to claim 1, wherein an elastic sheet for forming a waist pleat is disposed at an end portion of the article on a side of the back side of the back side, and in the elastic sheet, a plurality of elastic members are located near the waist The elastic member at the position of the opening edge is continuously disposed from a position in the vicinity of one side edge portion in the width direction of the article to a position in the vicinity of the other side edge portion. 如請求項7之吸收性物品，其中於上述彈性片材中，位於較上述彈性構件更靠上述吸收體之位置上之彈性構件僅配置於上述物品之寬度方向上之左右之兩側部，於寬度方向之中央區域中未配置該彈性構件。The absorbent article according to claim 7, wherein in the elastic sheet, the elastic member located at a position closer to the absorbent body than the elastic member is disposed only on both sides of the left and right sides in the width direction of the article. The elastic member is not disposed in the central portion in the width direction. 如請求項1之吸收性物品，其中上述低基重部形成於上述吸收體之長度方向及寬度方向上延伸之正交之格子狀之形狀，上述高基重部位於由該低基重部所形成之格子內。The absorbent article according to claim 1, wherein the low basis weight portion is formed in an orthogonal lattice shape extending in a longitudinal direction and a width direction of the absorbent body, and the high basis weight portion is located by the low basis weight portion. Formed in the grid. 如請求項1之吸收性物品，其中各高基重部之形狀相同，且俯視時形成矩形。The absorbent article of claim 1, wherein each of the high basis weight portions has the same shape and is formed in a rectangular shape in a plan view. 如請求項1之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之下限值為20%。The absorbent article of claim 1, wherein the lower basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 20%. 如請求項11之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之下限值為30%。The absorbent article of claim 11, wherein the lower basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 30%. 如請求項1之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之上限值為80%。The absorbent article of claim 1, wherein the upper limit of the basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 80%. 如請求項13之吸收性物品，其中相對於上述高基重部之基重的上述低基重部之基重之上限值為70%。The absorbent article of claim 13, wherein the upper limit of the basis weight of the low basis weight portion relative to the basis weight of the high basis weight portion is 70%. 如請求項1之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之下限值為30%。The absorbent article of claim 1, wherein the lower limit of the thickness of the low basis weight portion relative to the thickness of the high basis weight portion is 30%. 如請求項15之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之下限值為40%。The absorbent article of claim 15, wherein the lower limit of the thickness of the low basis weight portion relative to the thickness of the high basis weight portion is 40%. 如請求項1之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之上限值為90%。The absorbent article of claim 1, wherein the upper limit of the thickness of the low basis weight portion relative to the thickness of the high basis weight portion is 90%. 如請求項17之吸收性物品，其中相對於上述高基重部之厚度的上述低基重部之厚度之上限值為80%。The absorbent article of claim 17, wherein the upper limit of the thickness of the low basis weight portion relative to the thickness of the high basis weight portion is 80%. 如請求項1之吸收性物品，其係展開型拋棄式尿布。An absorbent article according to claim 1, which is an unfolded disposable diaper. 如請求項1之吸收性物品，其係短褲型拋棄式尿布。An absorbent article according to claim 1, which is a pants-type disposable diaper.
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