TW201628573A - Absorbent article - Google Patents
Absorbent article Download PDFInfo
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- TW201628573A TW201628573A TW104135926A TW104135926A TW201628573A TW 201628573 A TW201628573 A TW 201628573A TW 104135926 A TW104135926 A TW 104135926A TW 104135926 A TW104135926 A TW 104135926A TW 201628573 A TW201628573 A TW 201628573A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/539—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
本發明係關於一種經期衛生棉、衛生護墊(陰道分泌物護墊)、失禁護墊等吸收性物品。 The invention relates to an absorbent article such as a menstrual sanitary napkin, a sanitary pad (vaginal secretion pad), an incontinence pad and the like.
先前,眾所周知於經期衛生棉等吸收性物品之吸收體以追隨穿著者之肌膚之凹凸形狀之方式設置隆起部,又,亦眾所周知於該隆起部形成槽。例如專利文獻1、2中揭示有於吸收體之中央部附近具備具有槽之隆起部的吸收體。 Conventionally, it has been known that an absorbent body of an absorbent article such as a menstrual napkin is provided with a ridge portion so as to follow the uneven shape of the wearer's skin, and it is also known that the ridge portion is formed with a groove. For example, Patent Documents 1 and 2 disclose an absorber having a raised portion having a groove in the vicinity of a central portion of the absorbent body.
專利文獻1:日本專利特開2009-112590號公報 Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-112590
專利文獻2:日本專利特開2012-125366號公報 Patent Document 2: Japanese Patent Laid-Open Publication No. 2012-125366
本發明係關於一種吸收性物品,其係於形成肌膚對向面之肌膚側片材與形成非肌膚對向面之非肌膚側片材之間具備吸收體,上述吸收體包含沿吸收性物品之前後方向較長之縱長形狀之吸收性芯體。上述吸收性芯體於排泄部對向部具有:側方區域,其位於寬度方向兩側;以及中央區域,其位於較該側方區域更靠寬度方向中央側且厚度大於該側方區域。上述側方區域與上述中央區域係一體成形,上述中央區域係朝上述非肌膚側片材側突出。上述吸收體中,於俯視時上述側方區域所在之區域具有不與上述非肌膚側片材接合之非接合區域。 The present invention relates to an absorbent article comprising an absorbent body between a skin side sheet forming a skin facing surface and a non-skin side sheet forming a non-skin facing surface, wherein the absorbent body comprises an absorbent article. An elongated core of elongated shape with a long front and rear direction. The absorptive core body has a side portion located on both sides in the width direction, and a central portion located further in the width direction center side than the side portion and having a thickness larger than the side portion. The side region is integrally formed with the central region, and the central region protrudes toward the non-skin side sheet side. In the absorbent body, the region in which the lateral region is located in a plan view has a non-joining region that is not joined to the non-skin side sheet.
1‧‧‧衛生棉 1‧‧‧Sanitary cotton
2‧‧‧肌膚側片材 2‧‧‧Skin side sheet
2a‧‧‧正面片材 2a‧‧‧Front sheet
2b‧‧‧側部片材 2b‧‧‧Side sheet
3‧‧‧非肌膚側片材 3‧‧‧Non-skin side sheet
4‧‧‧吸收體 4‧‧‧Acceptor
5‧‧‧中央突出部 5‧‧‧ Central Highlights
6‧‧‧吸收性本體 6‧‧‧Absorbable ontology
7‧‧‧側翼部 7‧‧‧Flanking
8‧‧‧後翼部 8‧‧‧ rear wing
12‧‧‧突起部鄰接高密度部 12‧‧‧The protrusion is adjacent to the high-density part
12'‧‧‧寬度方向兩側部(成為突起部鄰接高密度部之部分) 12'‧‧‧ Both sides in the width direction (the part of the protrusion adjacent to the high-density part)
40‧‧‧吸收性芯體 40‧‧‧Absorbable core
40A‧‧‧吸收性芯體 40A‧‧‧Absorbent core
41‧‧‧中央區域 41‧‧‧Central area
41'‧‧‧中央厚壁區域 41'‧‧‧Central thick-walled area
42‧‧‧高基重部 42‧‧‧High base
42d‧‧‧形成中央區域之中央突出部之部分 42d‧‧‧ forming part of the central projection of the central area
42u‧‧‧較形成中央區域之中央突出部之部分更靠近肌膚側之部分 42u‧‧‧ is closer to the skin side than the part of the central protrusion that forms the central area
43‧‧‧低基重部 43‧‧‧Low basis weight
44‧‧‧橫槽 44‧‧‧ transverse slot
44a‧‧‧橫槽 44a‧‧‧ transverse slot
44b‧‧‧橫槽 44b‧‧‧ transverse slot
44d‧‧‧底部 44d‧‧‧ bottom
45‧‧‧側方區域 45‧‧‧Side area
45'‧‧‧吸收體之側方區域 45'‧‧‧Side area of the absorber
46‧‧‧高基重部 46‧‧‧High base
47‧‧‧低基重部 47‧‧‧Low basis weight
48‧‧‧低基重部 48‧‧‧Low basis weight
49‧‧‧低基重部 49‧‧‧Low basis weight
50‧‧‧縱槽 50‧‧‧ longitudinal slot
50a‧‧‧開口部 50a‧‧‧ openings
50b‧‧‧底部 50b‧‧‧ bottom
52‧‧‧側方縱槽 52‧‧‧ side longitudinal groove
52a‧‧‧開口部 52a‧‧‧ Opening
52b‧‧‧底部 52b‧‧‧ bottom
53‧‧‧纖維堆積裝置 53‧‧‧Fiber accumulation device
54‧‧‧纖維堆積筒 54‧‧‧Fiber stacking cylinder
55‧‧‧集聚用凹部 55‧‧‧Concave recess
56‧‧‧底面 56‧‧‧ bottom
56a‧‧‧凹部 56a‧‧‧ recess
57、58‧‧‧難透氣性構件 57, 58‧‧‧ Refractory components
59‧‧‧導管 59‧‧‧ catheter
61‧‧‧加壓輥 61‧‧‧Pressure roller
62‧‧‧凹部 62‧‧‧ recess
63‧‧‧平滑輥 63‧‧‧Smooth roller
A‧‧‧前方部 A‧‧‧ front section
B‧‧‧排泄部對向部 B‧‧‧Excretion Department
C‧‧‧後方部 C‧‧‧ Rear
CD‧‧‧與搬送方向正交之方向 CD‧‧‧ direction orthogonal to the direction of transport
La‧‧‧開口部之寬度方向長度 La‧‧‧Width length of the opening
Lb‧‧‧底部之寬度方向長度 Length of the width of the bottom of Lb‧‧‧
MD‧‧‧搬送方向 MD‧‧‧Transport direction
R‧‧‧方向 R‧‧ Direction
S2‧‧‧側方區域之下表面 Surface under the S2‧‧‧ lateral area
t‧‧‧中央突出部之突出高度 t‧‧‧The protruding height of the central protrusion
t1‧‧‧中央區域之厚度 T1‧‧‧ Thickness of the central area
t2‧‧‧側方區域之厚度 Thickness of the lateral area of t2‧‧‧
W1‧‧‧中央突出部之寬度 W1‧‧‧Width of central projection
W2‧‧‧吸收性芯體之整個寬度 W2‧‧‧The entire width of the absorbent core
X‧‧‧長度方向(前後方向) X‧‧‧ Length direction (front and rear direction)
Y‧‧‧寬度方向 Y‧‧‧Width direction
圖1係表示作為本發明之第1實施形態之經期衛生棉之立體圖。 Fig. 1 is a perspective view showing a menstrual napkin as a first embodiment of the present invention.
圖2(a)係圖1之IIa-IIa線剖視圖,圖2(b)係圖1之IIb-IIb線剖視圖。 2(a) is a cross-sectional view taken along line IIa-IIa of Fig. 1, and Fig. 2(b) is a cross-sectional view taken along line IIb-IIb of Fig. 1.
圖3係自非肌膚對向面側觀察圖1所示之經期衛生棉之吸收體而得之俯視圖。 Fig. 3 is a plan view showing the absorbent body of the menstrual napkin shown in Fig. 1 from the non-skin facing side.
圖4(a)、(b)係對中央厚壁區域之兩側部加壓,而形成密度高於中央突出部且基重高於側方區域之突起部鄰接高密度部之方法之一例的說明圖。 4(a) and 4(b) are diagrams showing an example of a method of pressing the both side portions of the central thick-walled region to form a density higher than the central projection and having a base weight higher than the lateral region adjacent to the high-density portion. Illustrating.
圖5係表示圖1之經期衛生棉於穿著狀態下之吸收體之變形狀態的模式圖。 Fig. 5 is a schematic view showing a state of deformation of the absorbent body of the menstrual sanitary napkin of Fig. 1 in a worn state.
圖6係表示較佳地用於圖1所示之經期衛生棉之吸收性芯體之製造的纖維堆積裝置之主要部分之模式圖。 Fig. 6 is a schematic view showing the main part of a fiber stacking device which is preferably used for the manufacture of the absorbent core of the menstrual sanitary napkin shown in Fig. 1.
圖7(a)及圖7(b)係表示圖6所示之纖維堆積裝置中之纖維堆積筒外周部之沿筒周向之剖面的模式圖。 Fig. 7 (a) and Fig. 7 (b) are schematic views showing a cross section in the circumferential direction of the outer peripheral portion of the fiber stacking cylinder in the fiber stacking device shown in Fig. 6.
專利文獻1中之吸收體具有包括上層及下層之積層構造,並且於上層所在之形成有隆起部之中央區域形成有貫穿上下層之凹槽。然而,該凹槽係藉由熱壓紋加工而形成,故而凹槽之底部附近被壓實,故而對於穿著者之活動之靈活之追隨性有改善之餘地。 The absorbent body of Patent Document 1 has a laminated structure including an upper layer and a lower layer, and a groove penetrating the upper and lower layers is formed in a central portion of the upper layer where the ridge portion is formed. However, the groove is formed by hot embossing, so that the vicinity of the bottom of the groove is compacted, so that there is room for improvement in the flexibility of the wearer's activity.
又,於專利文獻2中,於具有多個塊狀之凸部之吸收體同樣設置有包含多個凸部之隆起部,隆起部容易追隨於穿著者之動作,但穿著時自穿著者側施加較強之壓力之情形等時之服貼性有改善之餘地。 Further, in Patent Document 2, the absorbing body having a plurality of block-shaped convex portions is similarly provided with a ridge portion including a plurality of convex portions, and the ridge portion easily follows the action of the wearer, but is applied from the wearer side when worn. In the case of strong pressure, there is room for improvement in conformity.
因此,本發明之課題在於提供一種能更提高上述先前技術之性能之吸收性物品。 Accordingly, it is an object of the present invention to provide an absorbent article which can improve the performance of the prior art described above.
以下,對本發明基於其較佳之實施形態一面參照圖式一面進行說明。 Hereinafter, the present invention will be described with reference to the drawings based on preferred embodiments thereof.
作為本發明之吸收性物品之第1實施形態之經期衛生棉1(以下亦簡稱為衛生棉1)係就寢時適用之夜用衛生棉,較佳為長度30cm以上者。 The menstrual sanitary napkin 1 (hereinafter also referred to simply as the sanitary napkin 1) according to the first embodiment of the absorbent article of the present invention is a night sanitary napkin to be applied at the time of sleeping, preferably having a length of 30 cm or more.
如圖1所示,衛生棉1具有沿前後方向較長之形狀之吸收性本體6、一對側翼部7、7、及一對後翼部8、8。關於經期衛生棉等吸收性物品,所謂「前後方向」係指穿著時與穿著者之前後方向一致之方向。又,於本說明書中,前後方向為長度方向,將與其正交之方向稱為寬度方向。 As shown in Fig. 1, the sanitary napkin 1 has an absorbent body 6, a pair of side flap portions 7, 7 and a pair of rear wing portions 8, 8 which are long in the front-rear direction. Regarding absorbent articles such as menstrual napkins, the term "front and rear direction" refers to the direction in which the wearer is in the same direction as the wearer. Further, in the present specification, the front-rear direction is the longitudinal direction, and the direction orthogonal thereto is referred to as the width direction.
衛生棉1於其長度方向具有前方部A、排泄部對向部B及後方部C,於排泄部對向部B中之吸收性本體6之左右兩側具有一對側翼部7、7,於後方部C中之吸收性本體6之左右兩側具有一對後翼部8、8。關於衛生棉1(吸收性物品)或吸收性本體6,排泄部對向部B係寬度方向之中央部與穿著者之陰道口即體液排泄部對向配置之部分,前方部A係配置於較排泄部對向部B更靠穿著者之前側(腹側)之部分,後方部B係配置於較排泄部對向部B更靠穿著者之背部側之部分。 The sanitary napkin 1 has a front portion A, a drain portion facing portion B, and a rear portion C in the longitudinal direction thereof, and a pair of side flap portions 7 and 7 on the right and left sides of the absorbent body 6 in the opposing portion B of the drain portion. The left and right sides of the absorbent body 6 in the rear portion C have a pair of rear wing portions 8, 8. In the sanitary napkin 1 (absorbent article) or the absorbent main body 6, the central portion of the excretory portion facing portion B in the width direction is disposed opposite to the body fluid excretion portion of the wearer's vaginal opening, and the front portion A is disposed at the front portion. The excretory portion facing portion B is closer to the front side (ventral side) of the wearer, and the rear portion B is disposed closer to the back side of the wearer than the excretory portion facing portion B.
衛生棉1具備:肌膚側片材2,其形成穿著時面向穿著者之肌膚側之肌膚對向面;非肌膚側片材3,其形成穿著時面向短褲等衣服側之非肌膚對向面;以及吸收體4,其配置於該等兩片材2、3之間。再者,於本說明書中,將肌膚側片材2、非肌膚側片材3及吸收性芯體40在俯視時重疊之部分稱為吸收性本體6。在衛生棉1中,肌膚側片材2具備液體透過性之正面片材2a及接合於其兩側之一對側部片材2b、2b。液體透過性之正面片材2a係以遍及吸收性本體6之全長之方式配置於吸收性本體6之寬度方向Y之中央部。側部片材2b係於將吸收性本體之寬度方向中央側之側緣部21重疊於正面片材2a上之狀態下,於自該側緣部21稍稍靠寬度方向之外側之位置接合於該正面片材2a。於衛生棉1中,側部片材2b之寬度方向內側端部並非沿長度方向與正面 片材2a接合。又,於衛生棉1中,於側部片材2b之寬度方向內側端部未設置有彈性構件。然而,亦可為於上述側緣部21之附近配設立體防護形成用彈性構件,於穿著時,藉由該彈性構件之收縮力,使排泄部對向部B中之自該側緣部21起特定寬度之部分以自正面片材2a離開之方式立起而形成立體防護。 The sanitary napkin 1 includes a skin side sheet 2 that forms a skin facing surface facing the wearer's skin side when worn, and a non-skin side sheet 3 that forms a non-skin facing surface facing the garment side such as shorts when worn; And an absorber 4 disposed between the two sheets 2, 3. In the present specification, the portion in which the skin side sheet 2, the non-skin side sheet 3, and the absorbent core 40 are overlapped in a plan view is referred to as an absorbent body 6. In the sanitary napkin 1, the skin side sheet 2 is provided with a liquid-permeable front sheet 2a and a pair of side sheets 2b and 2b joined to the both sides. The liquid-permeable front sheet 2a is disposed in the central portion of the absorbent body 6 in the width direction Y so as to extend over the entire length of the absorbent body 6. The side sheet 2b is joined to the front sheet 2a in a state in which the side edge portion 21 on the center side in the width direction of the absorbent main body is superposed on the front sheet 2a, and is joined to the outer side of the side edge portion 21 slightly outward in the width direction. Front sheet 2a. In the sanitary napkin 1, the inner side end portion of the side sheet 2b in the width direction is not along the length direction and the front side. The sheet 2a is joined. Further, in the sanitary napkin 1, an elastic member is not provided at the inner end portion in the width direction of the side sheet 2b. However, an elastic member for forming a body shield may be disposed in the vicinity of the side edge portion 21, and the side edge portion 21 of the discharge portion facing portion B may be caused by the contraction force of the elastic member when worn. A portion of a certain width rises in such a manner as to be separated from the front sheet 2a to form a three-dimensional shield.
一對側翼部7、7及一對後翼部8、8包含自吸收體4之兩側緣延出之側部片材2b及非肌膚側片材3。於一對側翼部7各自之包含非肌膚側片材3之面,設置有用以固定於短褲之褲襠部之非肌膚對向面的未圖示之側翼部黏著部,於吸收性本體6之非肌膚對向面設置有用以將該本體6固定於短褲之內表面之未圖示之本體黏著部。於衛生棉1中,本體黏著部至少設置於俯視時與下述吸收性芯體4之側方區域重疊之區域。後翼部8於穿著時配置在短褲之內表面上。較佳為於後翼部8之包含非肌膚側片材3之面亦設置有用以固定於短褲之內表面之黏著部。肌膚側片材2與非肌膚側片材3之延出至較吸收體4之周緣部更靠外側之部分係利用接著劑而相互接合,並且於衛生棉1之周緣部藉由熱密封而接合。肌膚側片材2與吸收體4之間、及吸收體4與非肌膚側片材3之間係藉由經點、螺旋、條紋等圖案塗佈之接著劑而相互接合。然而,吸收體4之非肌抵接面側之面係於下述吸收性芯體40之側部區域45所在之區域具有未接合於非肌膚側片材之非接合區域。 The pair of side flap portions 7 and 7 and the pair of rear wing portions 8 and 8 include a side sheet 2b and a non-skin side sheet 3 which are extended from both side edges of the absorbent body 4. In the surface of each of the pair of side flaps 7 including the non-skin side sheet 3, a side flap adhesive portion (not shown) that is fixed to the non-skin opposing surface of the crotch portion of the shorts is provided on the non-skinned body 6 The body facing surface is provided with a body adhesive portion (not shown) for fixing the main body 6 to the inner surface of the shorts. In the sanitary napkin 1, the main body adhesive portion is provided at least in a region overlapping the side region of the absorbent core 4 described below in plan view. The rear wing portion 8 is disposed on the inner surface of the shorts when worn. Preferably, the surface of the rear wing portion 8 including the non-skin side sheet 3 is provided with an adhesive portion for fixing to the inner surface of the shorts. The skin side sheet 2 and the non-skin side sheet 3 are extended to the outside of the peripheral portion of the absorbent body 4, and are joined to each other by an adhesive, and are joined by heat sealing at the peripheral portion of the sanitary napkin 1. . The skin side sheet 2 and the absorbent body 4 and the absorbent body 4 and the non-skin side sheet 3 are joined to each other by an adhesive applied by a pattern such as a dot, a spiral or a stripe. However, the surface of the absorbent body 4 on the non-muscle abutting surface side is in a region where the side portion 45 of the absorbent core 40 is located, and has a non-joining region which is not joined to the non-skin side sheet.
衛生棉1中之吸收體4具備於衛生棉之前後方向較長之縱長形狀之吸收性芯體40。吸收性芯體40包括包含紙漿纖維等纖維材料之纖維集合體或於該纖維集合體之纖維間保持有高吸水性聚合物者。又,吸收體4具備包覆吸收性芯體40之包芯片材(圖示省略)。即,吸收性芯體40係藉由包含衛生紙或透水性之不織布之包芯片材(圖示省略)而被覆上下兩面。包芯片材係用於防止吸收性芯體40之形成材料漏出或提高吸收性芯體40之保形性。吸收性芯體40較佳為藉由一片包芯片材, 遍及全周地被覆吸收性芯體40之寬度方向之剖面,或藉由複數片包芯片材,遍及全周地被覆吸收性芯體40之寬度方向之剖面。較佳亦為例如將配置於吸收性芯體40之肌膚對向面或非肌膚對向面之矩形之一片包芯片材之兩側部回折至吸收性芯體40之另一面側,並積層於被覆其另一面之矩形之另一包芯片材之兩側部上。該積層之部分之片材間亦可不接合,但較佳亦為接著。 The absorbent body 4 in the sanitary napkin 1 is provided with an elongated core 40 having a longitudinally long shape in the front and rear of the sanitary napkin. The absorbent core 40 includes a fiber assembly including a fiber material such as pulp fibers or a polymer having a highly water-absorptive polymer between fibers of the fiber assembly. Further, the absorber 4 is provided with a core material (not shown) that covers the absorbent core 40. That is, the absorbent core 40 is coated on both the upper and lower sides by a packaged core material (not shown) including a toilet paper or a water-permeable nonwoven fabric. The packaged chip material is used to prevent leakage of the forming material of the absorbent core 40 or to improve the shape retention of the absorbent core 40. The absorbent core 40 is preferably formed by a piece of coated chip material. The cross section of the absorbent core 40 in the width direction is covered over the entire circumference, or the cross section of the absorbent core 40 in the width direction is covered over the entire circumference by a plurality of laminated core sheets. Preferably, for example, the two sides of the rectangular coated chip material disposed on the skin facing surface or the non-skin opposing surface of the absorbent core 40 are folded back to the other side of the absorbent core 40, and laminated on the other side. It is covered on both sides of the other package of the rectangular material of the other side. The portions of the laminate may not be joined, but preferably also follow.
如圖1所示,衛生棉1中之吸收性芯體40具有於與衛生棉1之前後方向相同方向較長之縱長形狀。又,如圖2(a)及圖2(b)所示,吸收性芯體40於寬度方向Y具有位於兩側之側方區域45、45、及位於中央側且厚度大於側方區域45、45之中央區域41。於衛生棉1中之體液排泄部對向區域B中,中央區域41係具有較該側方區域45、45各自之下表面S2、S2更向非肌膚側片材3側、即圖2中之下方突出之中央突出部5的區域。 As shown in Fig. 1, the absorbent core 40 in the sanitary napkin 1 has a longitudinally long shape which is long in the same direction as the front and rear directions of the sanitary napkin 1. 2(a) and 2(b), the absorbent core 40 has lateral regions 45 and 45 on both sides in the width direction Y, and a central portion and a thickness larger than the lateral region 45. Central area 41 of 45. In the body region 3 of the body fluid excretion portion of the sanitary napkin 1, the central region 41 has a lower surface S2, S2 than the lateral surfaces 45, 45, and the side of the non-skin side sheet 3, that is, in FIG. The area of the central protrusion 5 that protrudes below.
於吸收性芯體40中,側方區域45、45與中央區域41係一體成形。 In the absorbent core 40, the side regions 45, 45 are integrally formed with the central region 41.
於本說明書中,所謂「一體成形」意指不同於利用接著劑或壓縮等接合方法將在不同步驟中製造出之構件彼此結合,而使用相同材料並於一步驟中一體地形成。因此,於中央區域41與側方區域45、45之交界部不存在當將分開製造之2個吸收性芯體並排配置時產生之芯體彼此之鄰接部或結合部。又,於本實施形態之衛生棉1中,吸收性芯體40整體係一體成形,故而於中央區域41之形成中央突出部5之部分42d與較該部分42d更靠近肌膚側之部分42u之間,同樣不存在層彼此之鄰接部或結合部。 In the present specification, the term "integrally formed" means that members which are manufactured in different steps are bonded to each other differently by a bonding method such as an adhesive or compression, and the same material is used and integrally formed in one step. Therefore, at the boundary portion between the central portion 41 and the side regions 45, 45, there is no adjacent portion or joint portion between the core bodies which are generated when the two absorbent core bodies which are separately manufactured are arranged side by side. Further, in the sanitary napkin 1 of the present embodiment, the absorbent core 40 is integrally molded as a whole, so that the portion 42d of the central portion 41 where the central projection 5 is formed and the portion 42u closer to the skin side than the portion 42d are formed. Also, there are no adjacent portions or joints of the layers.
關於此種構造之吸收性芯體之製造方法係於下文進行說明。 A method of manufacturing an absorbent core of such a configuration will be described below.
中央突出部5之寬度W1(參照圖2(a))相對於吸收性芯體40之整個寬度W2之比率較佳為20%以上,更佳為30%以上,又,較佳為80%以 下,更佳為70%以下,又,較佳為20%以上且80%以下,更佳為30%以上且70%以下。再者,於中央突出部5之寬度方向之長度不固定之形狀之情形時,例如,當為橢圓形或長圓形狀般之情形時,中央突出部5之寬度W1係指寬度方向之長度最長之部分之長度,對比該寬度,吸收性芯體40之整個寬度W2係設為吸收性芯體40之長度方向上之相同位置之整個寬度。 The ratio of the width W1 (see FIG. 2(a)) of the central protruding portion 5 to the entire width W2 of the absorbent core 40 is preferably 20% or more, more preferably 30% or more, and further preferably 80%. More preferably, it is 70% or less, and further preferably 20% or more and 80% or less, more preferably 30% or more and 70% or less. Further, in the case where the length of the central protruding portion 5 in the width direction is not fixed, for example, when it is an elliptical or oblong shape, the width W1 of the central protruding portion 5 means the longest length in the width direction. The length of the portion, in contrast to the width, the entire width W2 of the absorbent core 40 is set to the entire width of the same position in the longitudinal direction of the absorbent core 40.
如圖1所示,衛生棉1中之吸收性芯體40之中央突出部5具有於吸收性芯體40之長度方向較長之形狀,且自衛生棉1之排泄部對向部B遍及後方部C之一部分而形成。更具體而言,形成於自排泄部對向部B之前端部附近至後方部C之X方向中央部附近為止之範圍。 As shown in Fig. 1, the central protruding portion 5 of the absorbent core 40 in the sanitary napkin 1 has a shape elongated in the longitudinal direction of the absorbent core 40, and the rear portion B of the absorbent portion 1 of the sanitary napkin 1 is rearward. Formed as part of Part C. More specifically, it is formed in the range from the vicinity of the front end portion of the opposing portion B of the excretory portion to the vicinity of the central portion of the rear portion C in the X direction.
中央突出部5較佳為於衛生棉1(吸收性物品)之前後方向X,自排泄部對向部B遍及後方部C之一部分而形成。又,中央突出部5較佳為遍及衛生棉1之前後方向X之全長之30%以上之長度而形成,更佳為遍及衛生棉1之全長之40%以上之長度而形成,進而較佳為遍及衛生棉1之全長之50%以上之長度而形成。關於下述縱槽50及高密度部12亦相同。 The center protruding portion 5 is preferably formed in the front and rear direction X of the sanitary napkin 1 (absorbent article) from one portion of the rear portion C from the drain portion facing portion B. Further, the central protruding portion 5 is preferably formed over a length of 30% or more of the entire length of the front and rear directions X of the sanitary napkin 1, and more preferably formed over a length of 40% or more of the entire length of the sanitary napkin 1, and more preferably It is formed over the length of 50% or more of the entire length of the sanitary napkin 1. The same applies to the longitudinal groove 50 and the high density portion 12 described below.
於吸收性芯體40之中央區域41之非肌膚對向面,如圖2(a)及圖3所示,形成有沿著吸收性芯體40之長度方向X且於肌膚對向面側具有底部之縱槽50。即,縱槽50於吸收性芯體40之非肌膚對向面側具有開口部50a,且為不貫通吸收性芯體40之槽。於衛生棉1中,縱槽50係藉由減少吸收性芯體40之吸收性材料之基重而形成。即,衛生棉1之縱槽50並非藉由壓紋加工等將吸收性芯體40之一部分壓縮而形成者。再者,於衛生棉1中,設置於中央突出部5之縱槽50為1條,但設置於中央突出部5之縱槽之條數並不限定於此,亦可於寬度方向Y間歇性地設置複數條。於衛生棉1中,縱槽50係以沿中央突出部5之長度方向縱貫中央突出部5之方式配置。 As shown in Fig. 2 (a) and Fig. 3, the non-skin opposing surface of the central region 41 of the absorbent core 40 is formed along the longitudinal direction X of the absorbent core 40 and on the skin facing side. The longitudinal groove 50 at the bottom. In other words, the vertical groove 50 has an opening 50a on the non-skin opposing surface side of the absorbent core 40 and is a groove that does not penetrate the absorbent core 40. In the sanitary napkin 1, the longitudinal grooves 50 are formed by reducing the basis weight of the absorbent material of the absorbent core 40. That is, the longitudinal groove 50 of the sanitary napkin 1 is not formed by partially compressing one of the absorbent cores 40 by embossing or the like. Further, in the sanitary napkin 1, the number of the longitudinal grooves 50 provided in the central protruding portion 5 is one, but the number of the longitudinal grooves provided in the central protruding portion 5 is not limited thereto, and may be intermittent in the width direction Y. Set multiple lines. In the sanitary napkin 1, the vertical groove 50 is disposed so as to traverse the central projection 5 in the longitudinal direction of the central projection 5.
又,於吸收性芯體40之中央區域41,與縱槽50同樣地形成有橫槽44a,該橫槽44a係減少吸收性芯體40之形成材料之基重而形成,且於肌膚對向面側具有底部。即,橫槽44a亦與縱槽50同樣地為於中央區域41之非肌膚對向面側具備開口部且不貫通吸收性芯體40之槽。橫槽44a係沿吸收性芯體40之寬度方向Y延伸。 Further, in the central region 41 of the absorbent core 40, a lateral groove 44a is formed in the same manner as the vertical groove 50. The lateral groove 44a is formed by reducing the basis weight of the material for forming the absorbent core 40, and is oriented on the skin. The side has a bottom. In other words, the lateral groove 44a is a groove that has an opening on the non-skin opposing surface side of the central region 41 and that does not penetrate the absorbent core 40, similarly to the vertical groove 50. The lateral groove 44a extends in the width direction Y of the absorbent core 40.
於圖1所示之衛生棉1中,於中央區域41,於長度方向X間歇性地設置有複數條橫槽44a。於衛生棉1中,橫槽44a係以沿著中央突出部5之寬度方向Y橫穿中央突出部5之方式設置。 In the sanitary napkin 1 shown in Fig. 1, a plurality of lateral grooves 44a are intermittently provided in the longitudinal direction X in the central portion 41. In the sanitary napkin 1, the lateral groove 44a is provided so as to traverse the central projection 5 in the width direction Y of the central projection 5.
於吸收性芯體40之中央區域41,如圖2(a)所示,高基重部42與形成縱槽50之底部之低基重部43係於吸收性芯體40之寬度方向Y交替地形成,低基重部43係沿吸收性芯體40之長度方向X延伸。高基重部42係吸收性芯體之形成材料之基重與低基重部43相比相對較高之部分,低基重部43係吸收性芯體之形成材料之基重與高基重部42相比相對較低之部分。 In the central region 41 of the absorbent core 40, as shown in Fig. 2(a), the high basis weight portion 42 and the low basis weight portion 43 forming the bottom portion of the longitudinal groove 50 are alternated in the width direction Y of the absorbent core 40. Formed in the ground, the low basis weight portion 43 extends along the longitudinal direction X of the absorbent core 40. The high basis weight portion 42 is a portion where the basis weight of the material for forming the absorbent core is relatively higher than that of the low basis weight portion 43, and the low basis weight portion 43 is the basis weight and high basis weight of the material for forming the absorbent core. The portion 42 is relatively low compared to the portion.
於吸收性芯體40之中央區域41,形成縱槽50之底部之低基重部43之基重相對於高基重部42之基重之比率較佳為5%以上,更佳為10%以上,又,較佳為80%以下,更佳為70%以下,又,較佳為5%以上且80%以下,更佳為10%以上且70%以下。又,高基重部42之基重較佳為200g/m2以上,更佳為300g/m2以上,又,較佳為800g/m2以下,更佳為700g/m2以下,又,較佳為200g/m2以上且800g/m2以下,更佳為300g/m2以上且700g/m2以下。低基重部43之基重較佳為10g/m2以上,更佳為15g/m2以上,又,較佳為400g/m2以下,更佳為350g/m2以下,又,較佳為10g/m2以上且400g/m2以下,更佳為25g/m2以上且350g/m2以下。 In the central region 41 of the absorbent core 40, the ratio of the basis weight of the low basis weight portion 43 forming the bottom of the longitudinal groove 50 to the basis weight of the high basis weight portion 42 is preferably 5% or more, more preferably 10%. The above is preferably 80% or less, more preferably 70% or less, further preferably 5% or more and 80% or less, more preferably 10% or more and 70% or less. Further, the basis weight of the high basis weight portion 42 is preferably 200 g/m 2 or more, more preferably 300 g/m 2 or more, further preferably 800 g/m 2 or less, more preferably 700 g/m 2 or less. It is preferably 200 g/m 2 or more and 800 g/m 2 or less, more preferably 300 g/m 2 or more and 700 g/m 2 or less. The basis weight of the low basis weight portion 43 is preferably 10 g/m 2 or more, more preferably 15 g/m 2 or more, further preferably 400 g/m 2 or less, more preferably 350 g/m 2 or less, and further preferably It is 10 g/m 2 or more and 400 g/m 2 or less, more preferably 25 g/m 2 or more and 350 g/m 2 or less.
於吸收性芯體40之中央區域41,高基重部42不僅基重大於形成縱槽50之底部之低基重部43,厚度亦大於該低基重部43。低基重部43 之厚度相對於高基重部42之厚度之比率較佳為5%以上,更佳為10%以上,又,較佳為50%以下,更佳為40%以下,又,較佳為5%以上且50%以下,更佳為10%以上且40%以下。又,高基重部42之厚度較佳為1.5mm以上,更佳為2mm以上,又,較佳為10mm以下,更佳為8mm以下,又,較佳為1.5mm以上且10mm以下,更佳為2mm以上且8mm以下。低基重部43之厚度較佳為0.08mm以上,更佳為0.15mm以上,又,較佳為5mm以下,更佳為4mm以下,又,較佳為0.08mm以上且5mm以下,更佳為0.15mm以上且4mm以下。 In the central region 41 of the absorbent core 40, the high basis weight portion 42 is not only substantially larger than the low basis weight portion 43 forming the bottom of the longitudinal groove 50, but also thicker than the low basis weight portion 43. Low basis weight 43 The ratio of the thickness to the thickness of the high basis weight portion 42 is preferably 5% or more, more preferably 10% or more, further preferably 50% or less, more preferably 40% or less, and further preferably 5%. The above is 50% or less, more preferably 10% or more and 40% or less. Further, the thickness of the high basis weight portion 42 is preferably 1.5 mm or more, more preferably 2 mm or more, further preferably 10 mm or less, more preferably 8 mm or less, further preferably 1.5 mm or more and 10 mm or less, more preferably It is 2 mm or more and 8 mm or less. The thickness of the low basis weight portion 43 is preferably 0.08 mm or more, more preferably 0.15 mm or more, further preferably 5 mm or less, more preferably 4 mm or less, further preferably 0.08 mm or more and 5 mm or less, more preferably 0.15 mm or more and 4 mm or less.
再者,於如本實施形態之衛生棉1般包含橫槽44a而構成吸收性芯體之情形時,不包含該橫槽44a之高基重部只要符合上述高基重部42之值及與低基重部43之關係中之各值即可。 Further, in the case where the sanitary napkin 1 of the present embodiment includes the lateral grooves 44a to constitute the absorbent core, the high basis weight portion not including the lateral grooves 44a satisfies the value of the high basis weight portion 42 and Each of the values of the relationship of the low basis weights 43 may be sufficient.
(高基重部及低基重部之基重之測定方法) (Method for determining the basis weight of high basis weight and low basis weight)
使用FEATHER公司製造之單刃剃刀將吸收性芯體40沿著高基重部42與低基重部43之交界線切斷,獲得高基重部42及低基重部43之小片。以成為預定之面積之方式,將高基重部42之被側方區域45與低基重部43夾著之部分或被一對低基重部43、43夾著之部分切成小片。於該小片包含形成沿寬度方向Y延伸之橫槽44a之底部之低基重部48之情形時,將被高基重部42與側方區域45、低基重部43或低基重部48之交界線包圍之部分以將高基重部42切成小片之方式用於測定。低基重部43之小片係將夾於一對高基重部42、42間之窄幅之部分以長度成為30mm之方式切下。於未獲得不包含與低基重部48之交叉部分之長度30mm之小片作為低基重部43之小片之情形時,切下儘可能包含少量與低基重部48之交叉部分之長度30mm之小片,用作低基重部43之小片。 The absorbent core 40 is cut along the boundary line between the high basis weight portion 42 and the low basis weight portion 43 using a single-edged razor manufactured by FEATHER Co., Ltd. to obtain a small piece of the high basis weight portion 42 and the low basis weight portion 43. The portion of the high basis weight portion 42 sandwiched by the side region 45 and the low basis weight portion 43 or the portion sandwiched by the pair of low basis weight portions 43 and 43 is cut into small pieces so as to have a predetermined area. When the small piece includes the low basis weight portion 48 forming the bottom of the lateral groove 44a extending in the width direction Y, the high basis weight portion 42 and the side portion 45, the low basis weight portion 43 or the low basis weight portion 48 are to be used. The portion surrounded by the boundary line is used for measurement in such a manner that the high basis weight portion 42 is cut into small pieces. The small piece of the low basis weight portion 43 is cut in such a manner that the narrow portion between the pair of high basis weight portions 42 and 42 is 30 mm in length. In the case where a small piece having a length of 30 mm which does not include the intersection with the low basis weight portion 48 is obtained as a small piece of the low basis weight portion 43, the length of the intersection portion including the small amount and the low basis weight portion 48 as much as possible is cut to be 30 mm. A small piece is used as a small piece of the low basis weight 43.
使用電子天平(A&D公司製造之電子天平GR-300,精度:小數點後4位)測定該等小片之重量。將所求出之重量除以高基重部42或低基 重部43之小片之面積而算出小片之基重。關於高基重部42及低基重部43之各者,將5個小片之平均基重設為基重。 The weight of the small pieces was measured using an electronic balance (electronic balance GR-300 manufactured by A&D, precision: 4 digits after the decimal point). Divide the calculated weight by the high basis weight 42 or low base The basis weight of the small piece is calculated from the area of the small piece of the weight 43. Regarding each of the high basis weight portion 42 and the low basis weight portion 43, the average basis weight of the five small pieces is set as the basis weight.
(高基重部及低基重部之厚度之測定方法) (Method for measuring the thickness of high basis weight and low basis weight)
高基重部42及低基重部43之厚度之測定係藉由測定為了就各部位測定基重而切下之小片之厚度而進行。將大小20mm×20mm、厚度3mm之丙烯酸板以其中心與小片之中心一致之方式放置,使用KEYENCE公司製造之非接觸式雷射位移計(雷射頭LK-G30,位移計LK-GD500),測定樣本之厚度。 The measurement of the thickness of the high basis weight portion 42 and the low basis weight portion 43 is performed by measuring the thickness of the small piece cut to measure the basis weight for each portion. An acrylic plate having a size of 20 mm × 20 mm and a thickness of 3 mm was placed in such a manner that its center coincides with the center of the small piece, and a non-contact laser displacement meter (laser LK-G30, displacement meter LK-GD500) manufactured by KEYENCE Corporation was used. Determine the thickness of the sample.
再者,厚度測定時壓力係設為0.5g/cm2。於切下之小片之大小較小,難以藉由非接觸式雷射位移計進行測定之情形時,亦可使用例如顯微鏡(KEYENCE公司製造之VHX-1000)以20~100倍之倍率觀察上述被切斷之樣本之剖面,而進行測定。 Further, the pressure system at the time of thickness measurement was set to 0.5 g/cm 2 . When the size of the cut piece is small and it is difficult to measure by a non-contact type laser displacement meter, the above-mentioned object can also be observed at a magnification of 20 to 100 times using, for example, a microscope (VHX-1000 manufactured by KEYENCE Corporation). The profile of the sample was cut and the measurement was performed.
於吸收性芯體40之中央區域41,高基重部42與形成縱槽50之底部之低基重部43相比,吸收構件之密度變高。此種構成係例如藉由於製造吸收性芯體40之步驟中對吸收性芯體40之中央區域41加壓而獲得。此時,加壓之壓力集中於厚度較厚之高基重部42,厚度較薄之低基重部43並未因加壓而受到壓力,從而未被壓縮。如此,僅高基重部42被壓縮,藉此,以吸收構件之密度相對於低基重部43有所提高之方式設計高基重部42。又,於吸收性芯體40之中央區域41,高基重部42與形成橫槽44a之底部之低基重部48沿吸收性芯體40之長度方向X交替地形成。高基重部42與形成橫槽44a之底部之低基重部48相比,吸收構件之密度亦變高。再者,密度係藉由使用基於上述測定方法獲得之基重及厚度而算出。 In the central region 41 of the absorbent core 40, the high basis weight portion 42 has a higher density of the absorbent member than the low basis weight portion 43 forming the bottom of the longitudinal groove 50. Such a configuration is obtained, for example, by pressurizing the central region 41 of the absorbent core 40 in the step of manufacturing the absorbent core 40. At this time, the pressure of the pressurization is concentrated on the thick base portion 42 having a relatively large thickness, and the low basis weight portion 43 having a small thickness is not pressed by the pressurization, and is not compressed. In this manner, only the high basis weight portion 42 is compressed, whereby the high basis weight portion 42 is designed in such a manner that the density of the absorbing member is increased relative to the low basis weight portion 43. Further, in the central portion 41 of the absorbent core 40, the high basis weight portion 42 and the low basis weight portion 48 forming the bottom portion of the lateral groove 44a are alternately formed along the longitudinal direction X of the absorbent core 40. The high basis weight portion 42 also has a higher density of the absorbing member than the low basis weight portion 48 forming the bottom of the lateral groove 44a. Further, the density is calculated by using the basis weight and thickness obtained by the above measurement method.
低基重部48之基重、厚度係利用與低基重部43之情形相同之方法切下小片而測定。低基重部48之小片係將夾於一對高基重部42、42間之窄幅之部分以長度成為30mm之方式切下。於未獲得不包含與低 基重部43之交叉部分之長度30mm之小片之情形時,切下儘可能包含少量與低基重部43之交叉部分之長度30mm之小片,並用作低基重部48之小片。高基重部42與低基重部43之上述較佳之基重比、厚度比等在高基重部42與低基重部48之間亦相同。 The basis weight and thickness of the low basis weight portion 48 were measured by cutting a small piece in the same manner as in the case of the low basis weight portion 43. The small piece of the low basis weight portion 48 cuts the narrow portion between the pair of high basis weight portions 42, 42 by a length of 30 mm. Not obtained not included and low In the case of a piece having a length of 30 mm in the intersection portion of the basis weight portion 43, a small piece having a length of 30 mm which is as small as possible at the intersection with the low basis weight portion 43 is cut out and used as a small piece of the low basis weight portion 48. The above-described preferred basis weight ratio, thickness ratio, and the like of the high basis weight portion 42 and the low basis weight portion 43 are also the same between the high basis weight portion 42 and the low basis weight portion 48.
而且,具有基重差及密度差之高基重部42與低基重部43係以上述態樣形成,藉此,於吸收性芯體40之中央區域5中之非肌膚對向面,朝向肌膚對向面側凹陷之縱槽50分別沿吸收性芯體40之長度方向x延伸而形成。 Further, the high basis weight portion 42 having the basis weight difference and the density difference and the low basis weight portion 43 are formed in the above-described manner, whereby the non-skin contrast surface in the central region 5 of the absorbent core 40 is oriented. The longitudinal grooves 50 which are recessed toward the facing side of the skin are formed to extend along the longitudinal direction x of the absorbent core 40, respectively.
於本說明書中,肌膚對向面係吸收性物品或其構成構件中之於穿著時面向穿著者之肌膚側之面,非肌膚對向面係吸收性物品或其構成構件中之於穿著時面向與穿著者之肌膚側為相反側之面。 In the present specification, the surface of the skin-facing absorbent article or the constituent member thereof that faces the wearer's skin side when worn, and the non-skin-facing facial absorbent article or the constituent member thereof are worn when worn. It is the opposite side of the skin side of the wearer.
又,於吸收性芯體40之側方區域45,亦如圖2(a)所示,高基重部46與低基重部47係於吸收性芯體40之寬度方向Y交替地形成,各個低基重部47係沿著吸收性芯體40之長度方向X延伸。高基重部46與低基重部47相比,吸收性芯體之形成材料之基重相對較高,低基重部47與高基重部46相比,吸收性芯體之形成材料之基重相對較低。 Further, in the side region 45 of the absorbent core 40, as shown in Fig. 2(a), the high basis weight portion 46 and the low basis weight portion 47 are alternately formed in the width direction Y of the absorbent core 40, Each of the low basis weight portions 47 extends along the longitudinal direction X of the absorbent core 40. The high basis weight portion 46 has a relatively higher basis weight of the material for forming the absorbent core than the low basis weight portion 47. The low basis weight portion 47 is formed of a material of the absorbent core portion as compared with the high basis weight portion 46. The basis weight is relatively low.
而且,具有基重差及密度差之高基重部46與低基重部47係以上述態樣形成,藉此,於吸收性芯體40之側方區域45中之非肌膚對向面,朝向肌膚對向面側凹陷之複數條側方縱槽52亦分別沿吸收性芯體40之長度方向X延伸而形成。 Further, the high basis weight portion 46 having the basis weight difference and the density difference and the low basis weight portion 47 are formed in the above-described manner, whereby the non-skin contrast surface in the side region 45 of the absorbent core 40 is The plurality of side longitudinal grooves 52 that are recessed toward the opposite side of the skin are also formed to extend along the longitudinal direction X of the absorbent core 40, respectively.
於吸收性芯體40之側方區域45中,高基重部46與形成縱槽52之底部之低基重部47相比,吸收構件之密度變高。此種構成能以如下方式獲得。吸收性芯體40之側方區域45係於與對中央區域41進行加壓之步驟不同之步驟中被加壓。加壓之壓力集中於厚度較厚之高基重部46,厚度較薄之低基重部47並未因加壓而受到壓力,從而未被壓縮。如此,僅高基重部46被壓縮,藉此,以相對於低基重部47而吸收構件 之密度有所提高之方式設計高基重部46。再者,該步驟中所使用之加壓步驟係以如下方式設法進行:進行使用被挖通為相當於中央區域41之形狀之加壓輥或僅於對應於吸收性芯體40之側方區域45之部分存在加壓部之輥等之處理,僅對吸收性芯體40之側方區域進行加壓。 In the side region 45 of the absorbent core 40, the high basis weight portion 46 has a higher density of the absorbent member than the low basis weight portion 47 forming the bottom of the longitudinal groove 52. Such a constitution can be obtained in the following manner. The lateral region 45 of the absorbent core 40 is pressurized in a different step than the step of pressurizing the central region 41. The pressure of the pressurization is concentrated on the thick base portion 46 having a relatively large thickness, and the low basis weight portion 47 having a small thickness is not pressed by the pressurization and is not compressed. As such, only the high basis weight portion 46 is compressed, whereby the member is absorbed relative to the low basis weight portion 47. The high basis weight portion 46 is designed in such a manner that the density is increased. Further, the pressurizing step used in this step is performed in such a manner as to use a pressure roller that is dug into a shape corresponding to the central portion 41 or only a side region corresponding to the absorbent core 40. The portion of 45 has a treatment such as a roller of the pressurizing portion, and only the side region of the absorbent core 40 is pressurized.
於吸收性芯體40之側方區域45中,形成側方縱槽52之底部之低基重部47之基重相對於高基重部46之基重之比率較佳為5%以上,更佳為10%以上,又,較佳為50%以下,更佳為40%以下,又,較佳為5%以上且50%以下,更佳為10%以上且40%以下。又,高基重部46之基重較佳為50g/m2以上,更佳為100g/m2以上,又,較佳為400g/m2以下,更佳為300g/m2以下,又,較佳為50g/m2以上且400g/m2以下,更佳為100g/m2以上且300g/m2以下。低基重部47之基重較佳為2.5g/m2以上,更佳為5g/m2以上,又,較佳為200g/m2以下,更佳為150g/m2以下,又,較佳為2.5g/m2以上且200g/m2以下,更佳為5g/m2以上且150g/m2以下。 In the side region 45 of the absorbent core 40, the ratio of the basis weight of the low basis weight portion 47 forming the bottom portion of the side longitudinal groove 52 to the basis weight of the high basis weight portion 46 is preferably 5% or more. It is preferably 10% or more, more preferably 50% or less, more preferably 40% or less, further preferably 5% or more and 50% or less, more preferably 10% or more and 40% or less. Further, the basis weight of the high basis weight portion 46 is preferably 50 g/m 2 or more, more preferably 100 g/m 2 or more, further preferably 400 g/m 2 or less, more preferably 300 g/m 2 or less. It is preferably 50 g/m 2 or more and 400 g/m 2 or less, more preferably 100 g/m 2 or more and 300 g/m 2 or less. The basis weight of the low basis weight portion 47 is preferably 2.5 g/m 2 or more, more preferably 5 g/m 2 or more, further preferably 200 g/m 2 or less, more preferably 150 g/m 2 or less, and further, It is preferably 2.5 g/m 2 or more and 200 g/m 2 or less, more preferably 5 g/m 2 or more and 150 g/m 2 or less.
於吸收性芯體40之側方區域45中,高基重部46不僅基重大於形成側方縱槽52之底部之低基重部47,厚度亦大於該低基重部47。低基重部47之厚度相對於高基重部46之厚度之比率較佳為5%以上,更佳為10%以上,又,較佳為50%以下,更佳為40%以下,又,較佳為5%以上且50%以下,更佳為10%以上且40%以下。又,高基重部46之厚度較佳為0.8mm以上,更佳為1mm以上,又,較佳為5mm以下,更佳為4mm以下,又,較佳為0.8mm以上且5mm以下,更佳為1mm以上且4mm以下。低基重部47之厚度較佳為0.04mm以上,更佳為0.08mm以上,又,較佳為0.4mm以下,更佳為0.32mm以下,又,較佳為0.04mm以上且0.4mm以下,更佳為0.08mm以上且0.32mm以下。 In the lateral region 45 of the absorbent core 40, the high basis weight portion 46 is not only substantially larger than the low basis weight portion 47 forming the bottom of the side longitudinal groove 52, but also thicker than the low basis weight portion 47. The ratio of the thickness of the low basis weight portion 47 to the thickness of the high basis weight portion 46 is preferably 5% or more, more preferably 10% or more, further preferably 50% or less, more preferably 40% or less, and It is preferably 5% or more and 50% or less, more preferably 10% or more and 40% or less. Further, the thickness of the high basis weight portion 46 is preferably 0.8 mm or more, more preferably 1 mm or more, further preferably 5 mm or less, more preferably 4 mm or less, further preferably 0.8 mm or more and 5 mm or less, more preferably It is 1 mm or more and 4 mm or less. The thickness of the low basis weight portion 47 is preferably 0.04 mm or more, more preferably 0.08 mm or more, further preferably 0.4 mm or less, more preferably 0.32 mm or less, and further preferably 0.04 mm or more and 0.4 mm or less. More preferably, it is 0.08 mm or more and 0.32 mm or less.
再者,於如本實施形態之衛生棉1般包含橫槽44b而構成吸收性芯體之情形時,不包含該橫槽44b之高基重部只要符合上述高基重部 46之值及與低基重部47之關係中之各值即可。 Further, in the case where the sanitary napkin 1 of the present embodiment includes the lateral groove 44b to constitute the absorbent core, the high basis weight portion not including the lateral groove 44b is only required to conform to the above-described high basis weight portion. The values of 46 and the relationship with the low basis weight portion 47 may be used.
再者,高基重部46與低基重部47各自之基重與厚度之測定方法係與上述高基重部42與低基重部43中之測定方法同樣地進行。 Further, the method of measuring the basis weight and the thickness of each of the high basis weight portion 46 and the low basis weight portion 47 is performed in the same manner as the measurement method of the high basis weight portion 42 and the low basis weight portion 43.
又,中央突出部5所在之中央區域41中之高基重部42與側方區域45之高基重部46相比,基重變大,又,與側方區域45之高基重部46相比,厚度亦變大。藉此,中央區域41之厚度t1厚於側方區域45之厚度t2,於中央區域41,形成有突出至較側方區域45之下表面S2更靠下方之中央突出部5。 Further, the high basis weight portion 42 in the central portion 41 where the central protruding portion 5 is located has a larger basis weight than the high basis weight portion 46 of the side portion 45, and the base portion 46 is higher than the side portion 45. In comparison, the thickness also becomes larger. Thereby, the thickness t1 of the central portion 41 is thicker than the thickness t2 of the side region 45, and the central portion 41 is formed with the central projection 5 projecting to the lower surface S2 of the lateral side region 45.
中央區域41之厚度t1相對於側方區域45之厚度t2之比率較佳為110%以上,更佳為120%以上,又,較佳為400%以下,更佳為300%以下,又,較佳為110%以上且400%以下,更佳為120%以上且300%以下。再者,於本實施形態中,中央區域41之厚度t1為位於中央區域41之寬度方向中央部之高基重部42之上述厚度,側方區域45之厚度t2為最靠近中央區域41之高基重部46之上述厚度。於在側方區域45設置突起部鄰接高密度部12之情形時,設為最靠近突起部鄰接高密度部12之高基重部46之厚度。 The ratio of the thickness t1 of the central region 41 to the thickness t2 of the lateral region 45 is preferably 110% or more, more preferably 120% or more, further preferably 400% or less, more preferably 300% or less, and further, Preferably, it is 110% or more and 400% or less, more preferably 120% or more and 300% or less. Further, in the present embodiment, the thickness t1 of the central portion 41 is the above-described thickness of the high basis weight portion 42 located at the central portion in the width direction of the central portion 41, and the thickness t2 of the side portion 45 is the closest to the central portion 41. The above thickness of the basis weight portion 46. When the protrusion portion is adjacent to the high-density portion 12 in the side region 45, the thickness of the high basis weight portion 46 which is closest to the protrusion portion adjacent to the high-density portion 12 is set.
關於中央突出部5,於排泄部對向部B及後方部C中之每一者,皆自側方區域45之下表面S2突出之高度t相對於中央區域41之整個厚度t1之比率較佳為20%以上,更佳為30%以上,又,較佳為90%以下,更佳為80%以下,又,較佳為20%以上且90%以下,更佳為30%以上且80%以下。中央突出部5之突出高度t與自中央區域41之整個厚度t1減去側方區域45之厚度t2而得之值相同。 Regarding the central protruding portion 5, the ratio of the height t protruding from the lower surface S2 of the side portion 45 to the entire thickness t1 of the central portion 41 is preferably higher in each of the opposing portion B and the rear portion C of the drain portion. It is 20% or more, more preferably 30% or more, further preferably 90% or less, more preferably 80% or less, further preferably 20% or more and 90% or less, more preferably 30% or more and 80% or less. the following. The protruding height t of the central projection 5 is the same as the value obtained by subtracting the thickness t2 of the lateral region 45 from the entire thickness t1 of the central portion 41.
於衛生棉1中,於側方區域45,高基重部46與低基重部49亦於吸收性芯體40之長度方向X交替地形成,各個低基重部49亦沿著吸收性芯體40之寬度方向Y延伸。藉此,於側方區域45,複數條橫槽44b於長度方向X間歇性地配置。中央區域41之低基重部48與側方區域45之 低基重部49係於中央區域41與側方區域45之交界部,吸收性芯體40之長度方向X之位置一致,同樣地,中央區域41之橫槽44a與側方區域45、45之橫槽44b於上述交界部,吸收性芯體40之長度方向X之位置一致。 In the sanitary napkin 1, in the side region 45, the high basis weight portion 46 and the low basis weight portion 49 are alternately formed in the longitudinal direction X of the absorbent core 40, and each of the low basis weight portions 49 is also along the absorbent core. The width direction Y of the body 40 extends. Thereby, in the side area 45, the plurality of lateral grooves 44b are intermittently arranged in the longitudinal direction X. The low basis weight portion 48 and the side area 45 of the central portion 41 The low basis weight portion 49 is at the boundary portion between the central portion 41 and the side portion 45, and the position of the longitudinal direction X of the absorbent core 40 coincides. Similarly, the lateral groove 44a of the central portion 41 and the lateral regions 45, 45 The lateral grooves 44b are at the boundary portion, and the positions of the longitudinal direction X of the absorbent core 40 coincide with each other.
即,中央區域41之橫槽44a與側方區域45、45之橫槽44b係於自非肌膚對向面側俯視吸收性芯體40時,形成自吸收性芯體40之中央區域41遍及側方區域45、45連續之1條橫槽44,該橫槽44係遍及吸收性芯體40之整個寬度延伸。而且,該橫槽44於吸收性芯體40之長度方向隔開間隔而形成有複數條。換言之,中央區域41之低基重部43與側方區域45之低基重部47形成遍及吸收性芯體40之整個寬度連續地延伸之一條低基重部,該一條低基重部之吸收性芯體之形成材料之基重、厚度及密度較側方區域45之高基重部46小。 In other words, when the lateral groove 44a of the central region 41 and the lateral grooves 44b of the lateral regions 45 and 45 are viewed from the non-skin opposing surface side, the central portion 41 of the self-absorbent core 40 is formed over the side. The square regions 45, 45 are continuous with one transverse groove 44 extending over the entire width of the absorbent core 40. Further, the lateral grooves 44 are formed in plural at intervals in the longitudinal direction of the absorbent core 40. In other words, the low basis weight portion 43 of the central region 41 and the low basis weight portion 47 of the side region 45 form a low basis weight portion extending continuously throughout the entire width of the absorbent core 40, the absorption of the one low basis weight portion The basis weight, thickness, and density of the forming material of the core body are smaller than the high basis weight portion 46 of the side region 45.
關於橫槽44,所謂自中央區域遍及側方區域連續意指於自非肌膚對向面側俯視吸收性芯體40時,橫槽未於中央區域與側方區域之間中斷,而自中央區域遍及側方區域連續地存在。於本實施形態之衛生棉1中,橫槽44與縱槽50於俯視時呈十字狀交叉,但於如隔著縱槽而相對之一側之橫槽內之空間之延長上存在另一橫槽內之空間之全部或一部分之情形時,於與縱槽之交叉部,橫槽未被中斷。 Regarding the lateral groove 44, the continuous region from the central region continuously means that when the absorbent core 40 is viewed from the non-skin opposing surface side, the lateral groove is not interrupted between the central region and the lateral region, and the central region is interrupted. It exists continuously throughout the side area. In the sanitary napkin 1 of the present embodiment, the lateral groove 44 and the vertical groove 50 intersect in a cross shape in a plan view, but there is another cross in the extension of the space in the lateral groove on one side with respect to the longitudinal groove. In the case of all or part of the space in the slot, the lateral slot is not interrupted at the intersection with the longitudinal slot.
衛生棉1中之吸收體4於俯視時吸收性芯體40之側方區域45所在之區域45'(以下亦稱為吸收體之側方區域45')具有不與非肌膚側片材3接合之非接合區域。另一方面,吸收體4係於俯視時吸收性芯體40之中央突出部5所在之區域41'(以下亦稱為吸收體之中央區域417)與非肌膚側片材3接合。因此,如圖2(a)所示,於吸收體4之側方區域45',於吸收性芯體40與非肌膚側片材3之間形成有空間。於吸收性芯體40被包芯片材被覆之情形時,該空間既可形成於吸收性芯體與包芯片材之間,亦可形成於包芯片材與非肌膚側片材3之間,較佳為於包芯片材 與非肌膚側片材3之間形成有空間。於此情形時,吸收性芯體40與包芯片材之間既可接著,亦可不接著。吸收性芯體40之非肌膚對向面側之面亦可遍及整個區域利用經圖案塗佈之接著劑與包芯片材接著。又,吸收性芯體40之肌抵接面側之面亦可遍及整個區域利用經圖案塗佈之接著劑與包芯片材接著。 The absorbent body 4 in the sanitary napkin 1 has a region 45' (hereinafter also referred to as a side region 45' of the absorbent body) in which the side region 45 of the absorbent core 40 is located in a plan view, and has no joint with the non-skin side sheet 3. Non-joining area. On the other hand, the absorbent body 4 is joined to the non-skin side sheet 3 in a region 41' (hereinafter also referred to as a central region 417 of the absorbent body) in which the central protruding portion 5 of the absorbent core 40 is placed in a plan view. Therefore, as shown in FIG. 2(a), a space is formed between the absorbent core 40 and the non-skin side sheet 3 in the side region 45' of the absorbent body 4. In the case where the absorptive core 40 is covered with the core material, the space may be formed between the absorbent core and the packaged core material, or may be formed between the packaged core material and the non-skin side sheet 3, Good for the package of chip A space is formed between the non-skin side sheet 3. In this case, the absorbent core 40 and the packaged core material may or may not be attached. The surface of the absorbent core 40 on the non-skin facing side may also be followed by a pattern-coated adhesive and a coated core material throughout the entire area. Further, the surface of the absorbent core 40 on the abutting surface side may be followed by the pattern-coated adhesive and the coated core material throughout the entire area.
於衛生棉1中,遍及位於中央突出部5所在之區域中之寬度方向外側的吸收體4之側方區域45'之寬度方向整個區域,存在非接合區域,於圖2(a)中,側方區域45'與非接合區域重疊。然而,並不限定於此,吸收體4之俯視時側方區域45所在之區域45'之一部分亦可與非肌膚側片材3接合。例如可列舉僅吸收性芯體40之寬度方向端緣之位置與非肌膚側片材接合之形態等。又,亦可為如下形態:僅使位於排泄部對向部B之側方區域45'之整個區域成為非接合區域,於前方部A或後方部C具備吸收體4之側方區域45'與非肌膚側片材3接合而得之部分。又,可為如下形態:於中央突出部5為長圓形狀等其寬度不均勻之形狀之情形時,於位於較中央突出部5之最大寬度部分更靠縱方向前方或後方之寬度方向內側之側方區域45',吸收體4之側方區域45'與非肌膚側片材3接合,而於較自最大寬度部分沿長度方向X之前後延伸之假想線更靠外側之區域形成有非接合區域。然而,較佳為至少體液排泄部對向區域B中之側方區域45所在之區域45'之整個區域形成有未接合於非肌膚側片材3之非接合區域。 In the sanitary napkin 1, there is a non-joining region throughout the widthwise direction of the lateral region 45' of the absorbent body 4 located outside the width direction of the region in which the central projection 5 is located, in Fig. 2(a), the side The square region 45' overlaps with the non-joining region. However, the present invention is not limited thereto, and a portion of the region 45' where the side region 45 of the absorbent body 4 is located in the plan view may be joined to the non-skin side sheet 3. For example, a form in which only the position of the end edge in the width direction of the absorbent core 40 is joined to the non-skin side sheet may be mentioned. Moreover, the entire region of the side region 45' located in the opposing portion B of the excretion portion may be a non-joining region, and the lateral portion 45' of the absorber 4 may be provided in the front portion A or the rear portion C. The portion of the non-skin side sheet 3 joined. In the case where the central protruding portion 5 has a shape in which the width is not uniform, such as an oblong shape, the central protruding portion 5 is located on the inner side in the width direction of the front side or the rear side in the longitudinal direction of the maximum width portion of the central protruding portion 5. The square region 45', the side region 45' of the absorbent body 4 is joined to the non-skin side sheet 3, and the non-joining region is formed in a region outside the imaginary line extending from the maximum width portion before and after the longitudinal direction X. . However, it is preferable that at least the entire region of the region 45' where the lateral region 45 in the opposing region B of the body fluid excretion portion is formed is a non-joining region that is not joined to the non-skin side sheet 3.
於本發明之吸收性物品中,吸收性芯體40係中央區域41與側方區域45一體成形,並且厚度相對較厚之中央區域41之中央突出部5向非肌膚側片材3側突出。而且,於位於較中央突出部5更靠寬度方向外側之吸收體4之側方區域45',具備該吸收體4與非肌面片材3間未接合之非接合區域。因此,可獲得如以下所說明之獨特之效果。 In the absorbent article of the present invention, the absorbent core 40 is integrally formed with the central region 41 and the side region 45, and the central projection 5 of the central portion 41 having a relatively thick thickness protrudes toward the non-skin side sheet 3 side. Further, the side region 45' of the absorber 4 located further outward in the width direction than the center projecting portion 5 is provided with a non-joining region where the absorber 4 and the non-muscle sheet 3 are not joined. Therefore, a unique effect as explained below can be obtained.
首先,當穿著者穿著本發明之吸收性物品時,吸收性物品之排 泄部對向部之周圍部會分別以追隨身體之形狀之方式變形。此時,藉由朝遠離穿著者之肌膚之方向突出之中央突出部5,上述周圍部於其非肌膚對向面側存在緩衝壓力之區域或空間。因此,吸收體4之側部區域45'、45'於褲襠部在與中央區域41'之間具有緩衝區域且彎折,故而能夠形成緩衝性優異之變形形狀(參照圖5)。 First, when the wearer wears the absorbent article of the present invention, the row of absorbent articles The peripheral portion of the venting portion of the venting portion is deformed in such a manner as to follow the shape of the body. At this time, the peripheral portion 5 has a buffering pressure region or space on the non-skin opposing surface side by the central protruding portion 5 that protrudes away from the wearer's skin. Therefore, the side regions 45' and 45' of the absorbent body 4 have a cushioning region between the crotch portion and the central region 41', and are bent, so that a deformed shape having excellent cushioning properties can be formed (see Fig. 5).
於圖2(a)所示之衛生棉1中,緩衝壓力之區域為形成於吸收體4之側方區域45'與非肌膚側片材3之間之空間。尤其是,於在穿著衛生棉1時,自肌膚對向面側朝非肌膚對向面側施加力之情形時,雖然使側方區域45'朝非肌膚對向面方向彎曲、移動,但側方區域45'中之與中央突出部5鄰接之區域容易維持側方區域45'與非肌膚側片材3之間之空間。再者,於本實施形態之衛生棉1中,進而,於吸收性芯體40之中央區域41與側方區域45形成有縱槽及橫槽,可進一步緩和自製品寬度方向施加之壓力。 In the sanitary napkin 1 shown in Fig. 2(a), the region of the cushioning pressure is a space formed between the lateral region 45' of the absorbent body 4 and the non-skin side sheet 3. In particular, when the sanitary napkin 1 is worn, when the force is applied from the skin facing side to the non-skin facing side, the side area 45' is bent and moved toward the non-skin opposing surface, but the side is The area adjacent to the central protrusion 5 in the square area 45' easily maintains the space between the side area 45' and the non-skin side sheet 3. Further, in the sanitary napkin 1 of the present embodiment, a longitudinal groove and a lateral groove are formed in the central portion 41 and the side region 45 of the absorbent core 40, and the pressure applied in the width direction of the product can be further alleviated.
又,緩衝區域能夠以維持中央突出部5與側部區域45'之間之空間之方式形成,故而於與吸收容量較大且保持大量排泄液之中央區域41近接之區域形成有透氣通道,而可減少悶濕感。 Further, the buffer region can be formed to maintain the space between the central projection 5 and the side region 45', so that a ventilating passage is formed in a region close to the central region 41 where the absorption capacity is large and a large amount of excretion liquid is maintained, and Can reduce the feeling of dampness.
進而,朝肌膚側片材3側突出之中央突出部5發揮作為緩衝墊之作用,即便於排泄液被吸收性物品吸收之後,例如自肌膚對向面側朝向非肌對向方向之較強之壓力自穿著者之體液排泄部施加至吸收性物品,亦可柔軟地承受壓力,又,可藉由上述緩衝區域而確保中央突出部5擴展之空間,故而可給穿著者帶來柔軟之穿著感,並且可抑制排泄液自中央吸收部5漏出。 Further, the central protruding portion 5 that protrudes toward the skin-side sheet 3 side functions as a cushion, and is stronger from the opposite side of the skin toward the non-muscle direction, for example, after the excretion liquid is absorbed by the absorbent article. The pressure is applied to the absorbent article by the body fluid discharge portion of the wearer, and the pressure can be softly received. Further, the space of the central protruding portion 5 can be secured by the buffer region, so that the wearer can feel soft and wearable. And it is possible to suppress leakage of excretion liquid from the central absorption portion 5.
該等效果於吸收性物品為衛生棉之情形時,可對敏感之陰道口或其附近帶來溫和之觸感,故而可以說特佳。又,於為在非肌膚側片材3具備向內褲等之固定機構之吸收性物品之情形時,由於存在側方區域45與非肌膚側片材3之非接合區域,故而吸收性芯體40不易受到 內褲等之褶皺或皺褶等的影響,故而上述效果之優勢突出。該效果之優勢於將上述固定機構設置於非肌膚側片材之側方區域對向部分中之非肌膚抵接面之情形時,尤其有益。 These effects are particularly good when the absorbent article is in the case of a sanitary napkin, which imparts a gentle touch to the sensitive vaginal opening or its vicinity. In the case where the non-skin side sheet 3 is provided with an absorbent article such as a panty or the like, since the non-joining region of the side region 45 and the non-skin side sheet 3 is present, the absorbent core 40 is provided. Not susceptible to The advantages of the above effects are outstanding because of the influence of wrinkles or wrinkles such as underwear. The advantage of this effect is particularly advantageous when the above-described fixing mechanism is provided on the non-skin abutting surface in the opposing portion of the side portion of the non-skin side sheet.
又,於本實施形態之衛生棉1之吸收性芯體40中,具有突起部鄰接高密度部12,該突起部鄰接高密度部12與側方區域45、45中之與中央區域41鄰接且密度高於中央區域41。就中央區域41中之無縱槽及橫槽之高基重部42與突起部鄰接高密度部12之比較而言,關於形成吸收性芯體之纖維、吸收性聚合物等全部構成材料之密度,意指相比突起部鄰接高密度部12,高基重部42相對而言密度較低。 Further, in the absorbent core 40 of the sanitary napkin 1 of the present embodiment, the protruding portion is adjacent to the high-density portion 12, and the protruding portion is adjacent to the central portion 41 of the high-density portion 12 and the side regions 45, 45 and The density is higher than the central area 41. The density of all the constituent materials of the fibers forming the absorbent core, the absorbent polymer, and the like, in comparison with the high-density portion 12 of the central portion 41 and the high-density portion 42 having no longitudinal grooves and lateral grooves in the central region 41. It means that the high basis weight portion 42 is relatively low in density compared to the protrusion portion adjacent to the high density portion 12.
於衛生棉1中,進而,將與突起部鄰接高密度部12相比相對而言基重較低且密度較低之側方區域45配置於較突起部鄰接高密度部12更靠寬度方向外側。 Further, in the sanitary napkin 1, the side region 45 having a lower basis weight and a lower density than the high-density portion 12 adjacent to the protruding portion is disposed on the outer side of the protruding portion adjacent to the high-density portion 12 in the width direction. .
於藉由圖4所示之方法形成突起部鄰接高密度部12之情形時,非肌膚對向面側之密度高於肌膚對向面側之密度,但突起部鄰接高密度部12之密度係將吸收性芯體之厚度方向整體切下而進行測定。 When the protrusion portion is adjacent to the high-density portion 12 by the method shown in FIG. 4, the density on the non-skin opposing surface side is higher than the density on the opposite surface side of the skin, but the density of the protrusion portion adjacent to the high-density portion 12 is The measurement was carried out by cutting the entire thickness direction of the absorbent core.
突起部鄰接高密度部12之密度相對於中央區域41中之無縱槽及橫槽之高基重部42之密度為110%以上,較佳為120%以上,又,較佳為400%以下,更佳為300%以下,又,較佳為110%以上且400%以下,更佳為120%以上且300%以下。 The density of the protrusions adjacent to the high-density portion 12 is 110% or more, preferably 120% or more, and more preferably 400% or less with respect to the high-basic portion 42 of the central portion 41 having no longitudinal grooves and lateral grooves. More preferably, it is 300% or less, and further preferably 110% or more and 400% or less, more preferably 120% or more and 300% or less.
又,突起部鄰接高密度部12之密度相對於側方區域45之密度為150%以上,較佳為160%以上,又,較佳為500%以下,更佳為400%以下,又,較佳為150%以上且500%以下,更佳為160%以上且400%以下。 Further, the density of the protrusion adjacent to the high-density portion 12 is 150% or more with respect to the density of the side portion 45, preferably 160% or more, more preferably 500% or less, still more preferably 400% or less, and further, Preferably, it is 150% or more and 500% or less, more preferably 160% or more and 400% or less.
[中央區域之密度之算出方法] [Method of calculating the density of the central area]
於吸收性芯體40中,以成為預定之面積之方式,使用FEATHER公司製造之單刃剃刀切斷於製品寬度方向為3mm且於製品長度方向 為30mm之大小之試驗片。首先,切下中央區域41中之無縱槽及橫槽之高基重部42之試驗片,使用電子天平(A&D公司製造之電子天平GR-300,精度:小數點後4位)測定其質量。其次,使用例如顯微鏡(KEYENCE公司VHX-1000)以20~100倍之倍率觀察切下之樣本之剖面,並測定厚度。再者,將所測定之試驗片設為5個,將平均值設為中央區域之厚度。將上述測定出之質量除以試驗片之體積(厚度×製品寬度方向之長度×製品長度方向之長度),而算出中央區域之密度。 In the absorbent core 40, a single-edged razor manufactured by FEATHER Co., Ltd. was used to cut the width direction of the product by 3 mm and in the longitudinal direction of the product so as to have a predetermined area. It is a test piece of 30 mm in size. First, the test piece of the high base portion 42 having no longitudinal grooves and lateral grooves in the central portion 41 was cut out, and the mass was measured using an electronic balance (electronic balance GR-300 manufactured by A&D, accuracy: 4 decimal places). . Next, the cross section of the cut sample is observed at a magnification of 20 to 100 times using, for example, a microscope (KEYENCE VHX-1000), and the thickness is measured. Further, the number of test pieces to be measured was set to five, and the average value was set to the thickness of the central region. The density measured in the central region was calculated by dividing the mass measured above by the volume of the test piece (thickness × length in the product width direction × length in the product longitudinal direction).
[突起部鄰接高密度部之密度之算出方法] [Method for calculating the density of the protrusion adjacent to the high density portion]
將於製品寬度方向為3mm且於製品長度方向為30mm之大小之試驗片自吸收性物品(製品)之寬度方向之製品中央向製品端部連續地切下複數片,並使用電子天平(A&D公司製造之電子天平GR-300,精度:小數點後4位)測定其質量。其次,使用例如顯微鏡(KEYENCE公司製造之VHX-1000)以20~100倍之倍率觀察所切下之樣本之剖面,並測定厚度。 A test piece having a width of 3 mm in the product width direction and a length of 30 mm in the longitudinal direction of the product was continuously cut into a plurality of pieces from the center of the product in the width direction of the absorbent article (product), and an electronic balance was used (A&D Co., Ltd.) The manufactured electronic balance GR-300, accuracy: 4 digits after the decimal point) was measured for its quality. Next, the cross section of the cut sample is observed at a magnification of 20 to 100 times using, for example, a microscope (VHX-1000 manufactured by KEYENCE Corporation), and the thickness is measured.
再者,所切下之各試驗片係自5個吸收性物品切下,所測定之試驗片係設為5個吸收性芯體40各自之同一部位,將平均值設為試驗片之厚度。將上述測定出之質量除以試驗片之體積(厚度×製品寬度方向之長度×製品長度方向之長度),算出自各部位切下之試驗片之密度。 Further, each of the cut test pieces was cut out from five absorbent articles, and the test piece to be measured was set to the same portion of each of the five absorbent cores 40, and the average value was defined as the thickness of the test piece. The mass measured above was divided by the volume of the test piece (thickness × length in the product width direction × length in the product longitudinal direction), and the density of the test piece cut from each part was calculated.
關於所獲得之各試驗片,根據自製品中央側切下之試驗片,依序算出製品寬度方向之中央側之試驗片與自鄰接於該試驗片之寬度方向外側之部位切下之試驗片之密度比(前者/後者),於該密度比成為0.5以下之情形時,將2個試驗片中之製品寬度方向外側之試驗片之密度設為突起部鄰接高密度部12之密度。 Each of the obtained test pieces was subjected to a test piece cut out from the center side of the product, and the test piece on the center side in the width direction of the product and the test piece cut out from the portion adjacent to the outer side in the width direction of the test piece were sequentially calculated. In the density ratio (the former/the latter), when the density ratio is 0.5 or less, the density of the test piece on the outer side in the width direction of the product in the two test pieces is defined as the density of the protrusion adjacent to the high-density portion 12.
於本實施形態之衛生棉1中,如圖4所示,突起部鄰接高密度部12係於製造衛生棉時,將吸收性芯體40之中央區域41中之形成為與成為高基重部42之部分42'相同厚度之寬度方向兩側部12'壓縮而形成。 於中央區域41具有此種構成,因此發揮如下效果。 In the sanitary napkin 1 of the present embodiment, as shown in FIG. 4, when the protruding portion is adjacent to the high-density portion 12 for manufacturing the sanitary napkin, the central portion 41 of the absorbent core 40 is formed to be a high basis weight portion. A portion 42' of the same thickness 42 is formed by compressing both side portions 12' in the width direction. Since the central region 41 has such a configuration, the following effects are exhibited.
首先,對於在來自穿著者之壓力施加至排泄部對向部時之變形,突起部鄰接高密度部12具有變形對抗性,故而吸收性芯體40之側方區域45容易一面於中央突出部5與側部區域45之間維持空間一面變形。因此,進一步容易發揮上述本發明之效果。 First, when the pressure from the wearer is applied to the opposing portion of the excretion portion, the protrusion portion is deformed against the high-density portion 12, so that the lateral region 45 of the absorbent core 40 is easily formed on the central projection portion 5. The space is deformed while maintaining a space with the side portion 45. Therefore, the effects of the present invention described above are further easily exerted.
又,本構成對於吸收性能亦有利。首先,於排泄部對向部B體液排出至中央區域41之中央突出部5。於中央區域41之側部,存在將中央突出部5壓縮而形成之突起部鄰接高密度部12。因此,向寬度方向Y及厚度方向擴散之體液被引導至高密度部。突起部鄰接高密度部12係由於吸收性材料之基重高於側方區域45,故而保持體液之能力較高。因此,體液在中央區域41之兩側部被阻擋,而難以到達衛生棉1之寬度方向兩側部。因此,於衛生棉1中,容易抑制體液側漏。 Moreover, this configuration is also advantageous for absorption performance. First, the body fluid of the opposing portion B is discharged to the central protruding portion 5 of the central region 41. On the side portion of the central portion 41, a projection portion formed by compressing the central projection portion 5 is adjacent to the high-density portion 12. Therefore, the body fluid diffused in the width direction Y and the thickness direction is guided to the high density portion. The protrusions are adjacent to the high-density portion 12 because the basis weight of the absorbent material is higher than that of the side regions 45, so that the ability to hold the body fluid is high. Therefore, the body fluid is blocked at both side portions of the central portion 41, and it is difficult to reach both sides in the width direction of the sanitary napkin 1. Therefore, in the sanitary napkin 1, it is easy to suppress the side leakage of the body fluid.
關於突起部鄰接高密度部12,更具體地進行說明。 The protrusion portion is adjacent to the high-density portion 12 and will be described more specifically.
衛生棉1中之突起部鄰接高密度部12係於使用圖6中示出主要部分之纖維堆積裝置製造如圖4(a)所示之吸收性芯體40A之後,將該吸收性芯體40A之中央厚壁區域41'之兩側部壓縮而形成者,上述吸收性芯體40A具有包含成為突起部鄰接高密度部12之部分12'且形成為厚壁之中央厚壁區域41'。於衛生棉1中,將中央厚壁區域41'之位於成為中央突出部之部分的左右兩側之固定之部分壓縮,藉此,使厚度減小,該部分形成有突起部鄰接高密度部12作為密度高於未經壓縮之中央突出部5之區域。又,突起部鄰接高密度部12與側方區域45之其他部分相比並,吸收性材料之基重較高,故而具有充分之吸收容量,故而抑制體液到達吸收性芯體40之側緣。因此,容易防止體液自衛生棉1之側部洩漏。於本實施形態之衛生棉1中,突起部鄰接高密度部12成為與側方區域45之不存在縱槽50及橫槽44之部分大致相同厚度,但並不限定於此,亦可為突起部鄰接高密度部12之厚度較中央突出部5薄, 但較側方區域45厚。 The protrusion in the sanitary napkin 1 is adjacent to the high-density portion 12, and after the absorbent core 40A shown in Fig. 4(a) is produced by using the fiber stacking device shown in Fig. 6 as the main portion, the absorbent core 40A is attached. The both sides of the central thick-walled region 41' are compressed and formed, and the absorbent core 40A has a thick central portion 41' which is formed to be a thick portion of the portion 12' of the high-density portion 12. In the sanitary napkin 1, the fixed portion of the left and right sides of the central thick portion 41' which is located at the central protruding portion is compressed, whereby the thickness is reduced, and the portion is formed with the protruding portion adjacent to the high-density portion 12. As a region where the density is higher than the uncompressed central projection 5. Further, since the protruding portion is adjacent to the other portion of the side portion 45 and the high-density portion 12 has a higher basis weight of the absorbent material, it has a sufficient absorption capacity, so that the body fluid is prevented from reaching the side edge of the absorbent core 40. Therefore, it is easy to prevent the body fluid from leaking from the side of the sanitary napkin 1. In the sanitary napkin 1 of the present embodiment, the protrusion portion adjacent to the high-density portion 12 has substantially the same thickness as the portion of the side portion 45 where the vertical groove 50 and the lateral groove 44 are not present. However, the present invention is not limited thereto, and may be a protrusion. The thickness of the portion adjacent to the high density portion 12 is thinner than the central protrusion portion 5, However, it is thicker than the side area 45.
又,於衛生棉1中,中央突出部5之縱槽50與開口部50a相比,底部50b之寬度方向長度變窄。更具體而言,如圖2(a)及圖2(b)所示,中央突出部5之縱槽50之寬度方向長度係隨著自開口部50a朝向底部50b而逐漸變窄,於寬度方向剖視時,縱槽50成為自非肌膚對向面側朝向肌膚對向面側之大致倒V字形狀。除此種形態以外,亦可為階梯狀剖面形狀,但為大致倒V字狀者於自寬度方向兩外側施加壓力時,中央區域41之非肌膚對向面大幅度地變形,且肌膚對向面變形量較小,故而不會使排泄部對向部處之吸收面積縮小,而可獲得柔軟之感覺。該效果係於存在突起部鄰接高密度部12之情形時,特別有效地發揮功能。 Further, in the sanitary napkin 1, the longitudinal groove 50 of the central projecting portion 5 has a narrower length in the width direction of the bottom portion 50b than the opening portion 50a. More specifically, as shown in FIGS. 2( a ) and 2 ( b ), the lengthwise direction of the longitudinal groove 50 of the central protruding portion 5 gradually narrows from the opening portion 50 a toward the bottom portion 50 b in the width direction. In the cross-sectional view, the vertical groove 50 has a substantially inverted V shape from the non-skin opposing surface side toward the skin facing surface side. In addition to the above-described form, the shape may be a stepped cross-sectional shape. However, when the pressure is applied to both outer sides in the width direction in a substantially inverted V shape, the non-skin opposing surface of the central portion 41 is largely deformed, and the skin is facing. Since the amount of surface deformation is small, the absorption area at the opposite portion of the excretion portion is not reduced, and a feeling of softness can be obtained. This effect is particularly effective when the protrusion portion is adjacent to the high-density portion 12.
中央突出部5之縱槽50之開口部50a之寬度方向長度La較佳為0.5mm以上,進而較佳為1mm以上,又,較佳為5mm以下,進而較佳為4mm以下,底部50b之寬度方向長度Lb較佳為1mm以下,進而較佳為0.5mm以下。底部50b之寬度方向長度Lb之下限為0(零)。 The length La of the opening 50a of the vertical groove 50 of the central protruding portion 5 in the width direction is preferably 0.5 mm or more, more preferably 1 mm or more, further preferably 5 mm or less, further preferably 4 mm or less, and the width of the bottom portion 50b. The direction length Lb is preferably 1 mm or less, and more preferably 0.5 mm or less. The lower limit of the width direction length Lb of the bottom portion 50b is 0 (zero).
又,縱槽50之深度較佳為0.5mm以上且5.0mm以下,進而較佳為1.0mm以上且3.0mm以下。又,縱槽50之開口部50a與底部50b之寬度方向長度之差(上述La-上述Lb)較佳為0.5mm以上且3mm以下,進而較佳為1mm以上且2mm以下。 Further, the depth of the vertical groove 50 is preferably 0.5 mm or more and 5.0 mm or less, and more preferably 1.0 mm or more and 3.0 mm or less. Further, the difference between the length of the opening 50a of the vertical groove 50 and the length of the bottom portion 50b (the above-mentioned La-Lb) is preferably 0.5 mm or more and 3 mm or less, and more preferably 1 mm or more and 2 mm or less.
又,縱槽50之深度相對於開口部50a與底部50b之寬度方向長度之差(上述La-上述Lb)之比(深度/差(上述La-上述Lb))較佳為0.5以上且20以下,進而較佳為1以上且10以下。若為該範圍,則穿著中之縱槽之形狀容易穩定化,容易維持用於吸收排泄物之較佳之形狀。 Further, the ratio of the depth of the vertical groove 50 to the difference in the width direction of the opening portion 50a and the bottom portion 50b (the above-described La-Lb) (depth/difference (La-the above-mentioned Lb)) is preferably 0.5 or more and 20 or less. Further, it is preferably 1 or more and 10 or less. If it is this range, the shape of the longitudinal groove in wear is easy to stabilize, and it is easy to maintain the preferable shape for absorbing excrement.
又,縱槽50之底部50b位於較側方區域45之下表面S2更靠下方。此處所提及之側方區域45之下表面S2之位置係側方區域45之鄰接於中央區域41之部位中之高基重部46之下表面。縱槽50之底部50b較佳為 於吸收性芯體40之長度方向X遍及中央區域41之整個區域,位於較側方區域45之下表面S2更靠下方。藉由設為此種構成,容易抑制穿著時之衛生棉過度變形,且容易帶來適度之服貼感。 Further, the bottom portion 50b of the longitudinal groove 50 is located below the lower surface S2 of the side portion 45. The position of the lower surface S2 of the side area 45 mentioned here is the lower surface of the high basis weight 46 in the portion of the side area 45 adjacent to the central area 41. The bottom 50b of the longitudinal groove 50 is preferably In the longitudinal direction X of the absorbent core 40, the entire area of the central region 41 is located further below the lower surface S2 of the lateral region 45. With such a configuration, it is easy to suppress excessive deformation of the sanitary napkin during wearing, and it is easy to bring about an appropriate feeling of wearing.
再者,關於吸收性芯體40之中央區域41及側方區域45中之每一者,均因存在橫槽及縱槽,使非肌膚對向面具有凹凸形狀,另一方面,肌膚對向面變得平坦。 Further, each of the central region 41 and the lateral region 45 of the absorbent core 40 has a lateral groove and a longitudinal groove, so that the non-skin opposing surface has a concave-convex shape, and on the other hand, the skin is facing The surface becomes flat.
根據本實施形態之衛生棉1,於具有中央突出部5之中央區域42,形成有橫槽44,上述橫槽44深度較淺,底部44d到達較側方區域45之下表面S2更靠近非肌膚側面之位置,且亦自中央區域42延伸至側方區域45,並且該橫槽44係減少吸收性芯體之形成材料之基重而形成,故而雖然具有通常容易成為彎曲之阻礙之中央突出部5,但富有變形性,於衛生棉1之肌膚對向面亦不易產生皺褶。因此,如圖5所示,可一面使吸收體4及包含其之衛生棉1之非肌膚對向面追隨穿著者之體液排泄部或臀溝,一面使整體形狀以追隨穿著者之身體形狀之方式變形,相對於身體之凹凸之服貼性優異,並且相對於穿著者之活動之追隨變形性優異,亦不易帶來因皺褶或吸收性芯體之彎折而引起之不適感。 According to the sanitary napkin 1 of the present embodiment, the central portion 42 having the central projection 5 is formed with a lateral groove 44, the lateral groove 44 is shallow, and the bottom portion 44d reaches the lower surface S45 and is closer to the non-skin. The position of the side surface also extends from the central portion 42 to the side portion 45, and the lateral groove 44 is formed by reducing the basis weight of the material for forming the absorbent core, and therefore has a central projection which is generally susceptible to bending. 5, but it is deformable, and it is not easy to wrinkle on the opposite side of the skin of the sanitary napkin 1. Therefore, as shown in FIG. 5, the absorbent body 4 and the non-skin opposing surface of the sanitary napkin 1 including the same can follow the body fluid discharge portion or the gluteal groove of the wearer, and the overall shape can follow the shape of the wearer. The method is deformed, and is excellent in conformability with respect to the unevenness of the body, and is excellent in followability with respect to the wearer's activity, and is also less likely to cause discomfort due to wrinkles or bending of the absorbent core.
關於此種效果,當橫槽44之底部44d遍及吸收性芯體40之寬度方向Y之中央區域41之整個區域位於較側方區域45之下表面S2更靠下方時,進一步提高。 With regard to this effect, when the entire area of the bottom portion 44d of the lateral groove 44 over the central portion 41 of the width direction Y of the absorbent core 40 is located further below the lower surface S2 of the side portion 45, it is further improved.
就更確實地發揮此種效果之觀點而言,中央區域41之橫槽44a(44)之深度相對於中央區域41之厚度t1之比率較佳為50%以上,更佳為60%以上,又,較佳為95%以下,更佳為90%以下,又,較佳為50%以上且95%以,更佳為60%以上且90%以下。 From the viewpoint of more effectively exerting such an effect, the ratio of the depth of the lateral groove 44a (44) of the central portion 41 to the thickness t1 of the central portion 41 is preferably 50% or more, more preferably 60% or more, and further It is preferably 95% or less, more preferably 90% or less, further preferably 50% or more and 95% or more, more preferably 60% or more and 90% or less.
又,橫槽44之寬度W較佳為0.2mm以上,更佳為0.5mm以上,又,較佳為3mm以下,更佳為2mm以下,又,較佳為0.2mm以上且3 mm以下,更佳為0.5mm以上且2mm以下。如圖1所示,橫槽44之寬度W為吸收性芯體之長度方向X之尺寸。 Further, the width W of the lateral groove 44 is preferably 0.2 mm or more, more preferably 0.5 mm or more, further preferably 3 mm or less, more preferably 2 mm or less, and further preferably 0.2 mm or more and 3 Below mm, it is more preferably 0.5 mm or more and 2 mm or less. As shown in Fig. 1, the width W of the lateral groove 44 is the dimension of the longitudinal direction X of the absorbent core.
又,於衛生棉1中,中央區域41之高基重部42之密度高於低基重部43,故而經橫槽44吸收之體液迅速地被吸收至高基重部42。因此,體液一面順沿橫槽44,一面於吸收性芯體40之長度方向被吸收,故而可有效率地進行中央區域41處之體液吸收。結果,改善了自吸收性芯體40之液體洩漏之抑制。除此以外,於側方區域45,高基重部46之密度亦高於低基重部47,故而可獲得相同之效果。 Further, in the sanitary napkin 1, the density of the high basis weight portion 42 of the central portion 41 is higher than that of the low basis weight portion 43, so that the body fluid absorbed through the lateral groove 44 is quickly absorbed into the high basis weight portion 42. Therefore, the body fluid is absorbed in the longitudinal direction of the absorbent core 40 along the lateral groove 44, so that the body fluid absorption in the central region 41 can be efficiently performed. As a result, the suppression of the liquid leakage of the self-absorbent core 40 is improved. In addition to this, in the side region 45, the density of the high basis weight portion 46 is also higher than that of the low basis weight portion 47, so that the same effect can be obtained.
於中央區域41及側方區域45之各者,低基重部之密度相對於鄰接之高基重部之密度之比率較佳為5%以上,更佳為10%以上,又,較佳為50%以下,更佳為40%以下,又,較佳為5%以上且50%以下,更佳為10%以上且40%以下。 In each of the central region 41 and the side region 45, the ratio of the density of the low basis weight portion to the density of the adjacent high basis weight portion is preferably 5% or more, more preferably 10% or more, and further preferably 50% or less, more preferably 40% or less, further preferably 5% or more and 50% or less, more preferably 10% or more and 40% or less.
又,於衛生棉1中,於側方區域45亦設置有沿長度方向延伸之側方縱槽52。關於側方縱槽52,位於肌膚對向面側之開口部52a與位於非肌膚對向面側之底部52b之寬度方向Y之長度大致相同。此處,所謂「大致相同」係指於長度方向處於相同位置之開口部與底部之寬度方向長度之差異為5%以內。藉由此種構成,衛生棉1於穿著中自使用者之腿部受到之壓縮力均勻地傳遞至側方縱槽52而將側方縱槽52均勻地壓縮,故而可緩和使用者自衛生棉1受到之壓縮力之反作用,可消除使用者於衛生棉1穿著中感受到之不適感。再者,若將側方縱槽52之開口部52a設為較底部52b更為擴大之構成,則衛生棉1因在穿著中自使用者之腿根部受到之壓縮力而開口部更大幅度地變形,故而有衛生棉1之側緣部以向使用者蜷縮之方式變形之情況。此種變形係因衛生棉1側緣部向使用者之肌膚側翹曲,故而有衛生棉1較強地抵接於腹股溝部或於衛生棉1中央部使用者之肌膚與衛生棉1之表面產生間隔之情況。然而,藉由使開口部52a與底部52b之寬度方向長度大致相同, 可減少產生此種不良情況之風險。並且,亦有助於本發明中之中央區域41之縱槽50之形狀之穩定性。 Further, in the sanitary napkin 1, a side vertical groove 52 extending in the longitudinal direction is also provided in the side region 45. The side longitudinal groove 52 has substantially the same length in the width direction Y of the opening portion 52a on the skin facing surface side and the bottom portion 52b on the non-skin opposing surface side. Here, "substantially the same" means that the difference in the width direction between the opening portion and the bottom portion at the same position in the longitudinal direction is within 5%. With this configuration, the sanitary cotton 1 is uniformly transmitted to the side longitudinal grooves 52 by the compressive force received from the user's leg during wearing, and the lateral longitudinal grooves 52 are uniformly compressed, so that the user can relax the sanitary napkin. 1 The reaction of the compression force can eliminate the discomfort felt by the user when wearing the sanitary napkin 1. Further, when the opening 52a of the side vertical groove 52 is formed to be larger than the bottom portion 52b, the sanitary napkin 1 has a larger compression force due to the compressive force received from the base of the user's leg during wearing. The deformation is such that the side edge portion of the sanitary napkin 1 is deformed in such a manner as to collapse toward the user. In this deformation, the side edge of the sanitary napkin 1 is warped toward the skin side of the user, so that the sanitary napkin 1 strongly abuts against the groin portion or the skin of the user of the central portion of the sanitary napkin 1 and the surface of the sanitary napkin 1 The interval is generated. However, by making the lengths of the opening portion 52a and the bottom portion 52b substantially the same in the width direction, It can reduce the risk of such an adverse situation. Moreover, it also contributes to the stability of the shape of the longitudinal groove 50 of the central portion 41 in the present invention.
側方縱槽52較佳為與突起部鄰接高密度部12鄰接。藉由此種構成,與側方縱槽52之側方側接觸之吸收性芯體40和與側方縱槽52之中央側接觸之吸收性芯體40之硬度不同,根據該硬度之差異,衛生棉1容易以側方縱槽52為基軸使側緣部朝與使用者之肌膚為相反方向彎曲,使穿著中之衛生棉1之形狀更穩定,藉此,可減輕因穿著衛生棉1而令使用者感到之不適感,並且可使衛生棉1中央部更密接於使用者之肌膚,可更高效率地吸收液體。又,藉由使擔負吸收並捕獲液體之作用之高密度部與相對而言密度較低之側方縱槽52鄰接,而發揮如下效果:防止液體滲出至較高密度部更靠側方,使液體固定於更靠近衛生棉1之中央區域之區域,防止液體自衛生棉1之側緣部洩漏。 The side longitudinal grooves 52 are preferably adjacent to the protrusions adjacent to the high density portion 12. With such a configuration, the hardness of the absorbent core 40 that is in contact with the side of the side longitudinal groove 52 and the absorbent core 40 that is in contact with the center side of the side longitudinal groove 52 are different depending on the difference in hardness. The sanitary napkin 1 is easy to bend the side edge portion in the opposite direction to the skin of the user with the side longitudinal groove 52 as a base axis, so that the shape of the wearing sanitary napkin 1 is more stable, thereby reducing the wearing of the sanitary napkin 1 The user feels uncomfortable, and the central portion of the sanitary napkin 1 can be more closely adhered to the skin of the user, and the liquid can be absorbed more efficiently. Further, the high-density portion that functions to absorb and trap the liquid is adjacent to the side longitudinal groove 52 having a relatively low density, and the effect is that the liquid is prevented from oozing out to the side of the higher-density portion. The liquid is fixed in an area closer to the central portion of the sanitary napkin 1 to prevent liquid from leaking from the side edges of the sanitary napkin 1.
較佳為中央區域41之縱槽50之底面50a位於較側方縱槽52之底面52a更靠非肌膚對向面側。藉由此種構成,首先,以底面位於更靠非肌膚對向面側之縱槽50為基軸,衛生棉1之側方部朝與使用者之肌膚相反之方向彎曲,其次,以底面位於更靠肌膚對向面側之側方縱槽52為基軸,衛生棉1之側方部更朝與使用者之肌膚相反之方向彎曲,從而可使穿著中之衛生棉1之形狀更穩定。 Preferably, the bottom surface 50a of the longitudinal groove 50 of the central portion 41 is located on the non-skin opposing side of the bottom surface 52a of the lateral longitudinal groove 52. With such a configuration, first, the side surface of the longitudinal groove 50 on the side opposite to the non-skin facing surface is used as the base axis, and the side portion of the sanitary napkin 1 is bent in the opposite direction to the skin of the user, and secondly, the bottom surface is located further. The side longitudinal groove 52 on the opposite side of the skin is the base axis, and the side portion of the sanitary napkin 1 is bent in the opposite direction to the skin of the user, so that the shape of the sanitary napkin 1 in use can be made more stable.
上述衛生棉1之吸收性芯體40例如可藉由於使用纖維堆積裝置53(參照圖6)製造出上述吸收性芯體40A之後,實施圖4所示之加工而製造,上述纖維堆積裝置53具備:纖維堆積筒54,其於外周面具備集聚用凹部55,且朝一方向R旋轉;以及導管59,其將吸收性芯體之形成材料以飛散狀態供給至該纖維堆積筒54之外周面。於圖4中,表示如下情況:將於與搬送方向MD正交之方向CD之中央部具有中央厚壁區域41'之吸收性芯體40A導入至在周面之一部分具備凹部62之加壓輥61與周面平滑之平滑輥63之間,較強地對與成為中央區域41之部分鄰 接之部分12'進行加壓,而形成具有突起部鄰接高密度部12之吸收性芯體40。於圖4中,表示未對形成中央突出部5之成為中央區域41之部分進行加壓之情形,但亦可對成為中央區域41之部分及成為側方區域45之部分中之任一者或兩者較成為突起部鄰接高密度部12之部分12'更弱地進行加壓壓縮。 The absorbent core 40 of the sanitary napkin 1 can be manufactured, for example, by manufacturing the absorbent core 40A using the fiber stacking device 53 (see FIG. 6), and the fiber stacking device 53 is provided. The fiber stacking cylinder 54 is provided with a collecting recess 55 on the outer peripheral surface and rotated in one direction R, and a duct 59 that supplies the material for forming the absorptive core to the outer peripheral surface of the fiber stacking cylinder 54 in a scattered state. In FIG. 4, the absorbent core 40A having the central thick-walled region 41' in the central portion of the direction CD orthogonal to the transport direction MD is introduced to a pressure roller having a concave portion 62 at one of the circumferential surfaces. 61 is strongly adjacent to the smoothing roller 63 having a smooth surface, and is partially adjacent to the central region 41. The portion 12' is pressed to form an absorbent core 40 having a projection adjacent to the high-density portion 12. 4, the case where the central portion 41 is formed as the central portion 41 is not pressurized, but it may be any of the portion which becomes the central portion 41 and the portion which becomes the lateral region 45 or Both of them are pressure-compressed weaker than the portion 12' where the protrusion is adjacent to the high-density portion 12.
圖6所示之纖維堆積裝置53中之集聚用凹部55沿纖維堆積筒54之外周面之周向以固定間隔形成有複數個。集聚用凹部55之底面56包含網眼板等,具有作為抽吸孔發揮功能之多個微孔。 The accumulation recesses 55 in the fiber stacking device 53 shown in Fig. 6 are formed at a fixed interval along the circumferential direction of the outer peripheral surface of the fiber stacking cylinder 54 at a fixed interval. The bottom surface 56 of the collecting recess 55 includes a mesh plate or the like and has a plurality of micro holes that function as suction holes.
如圖7(a)所示,於集聚用凹部55之底面56之一部分,形成有用以形成中央厚壁區域41'之凹部56a。於集聚用凹部55之底部,配置有用以形成低基重部43、48等低基重部之難透氣性構件57、58。難透氣性構件57、58係以自集聚用凹部55之底面突出之方式固定,既可為非透氣性構件,亦可包含例如金屬或塑膠。 As shown in Fig. 7(a), a recess 56a for forming the central thick-walled region 41' is formed in a portion of the bottom surface 56 of the accumulation recess 55. At the bottom of the collecting recess 55, the gas-impermeable members 57, 58 for forming the low basis weight portions such as the low basis weight portions 43, 48 are disposed. The gas-impermeable members 57 and 58 are fixed so as to protrude from the bottom surface of the collecting recess 55, and may be a non-breathable member or may contain, for example, metal or plastic.
與具備纖維堆積筒之公知之纖維堆積裝置同樣地,藉由一面自集聚用凹部55之底面抽吸,一面對導管內供給吸收性芯體之形成材料,而如圖7(b)所示,使吸收性芯體之形成材料呈特定形狀堆積於集聚用凹部55內。藉由使該堆積物4'自集聚用凹部55脫模而獲得吸收性芯體40A。吸收性芯體40A亦可藉由於利用包芯片材被覆之前或被覆之後,通過一對輥間等而加壓並適度地壓縮。如圖7(b)所示,堆積於難透氣性構件57、58上之包含芯體形成材料之部分成為低基重部43等,堆積於不具有難透氣性構件57、58之底面上之部分成為高基重部42等。又,如上所述,藉由對吸收性芯體40A之中央區域41進行加壓,而於中央區域41形成密度高於低基重部43之高基重部42,藉由與成為中央區域41之部分分開地對側方區域45進行加壓,而於側方區域45形成密度高於低基重部47之高基重部46。又,亦可於利用包芯片材被覆之前或被覆之後進行在吸收性芯體40A之中央厚壁區域41'形成突 起部鄰接高密度部12之加壓(壓縮)。形成突起部鄰接高密度部12之加壓(壓縮)既可使用在周面具有階差之輥與中央區域41之加壓同時進行,亦可與側方區域45之加壓同時進行。又,藉由將形成於輥周面之階差設計為適當之尺寸,亦可與中央區域41之加壓及側方區域45之加壓同時進行。進而,亦可於不同步驟進行中央區域41之加壓及側方區域45之加壓,亦可於中央區域41之加壓之前、中央區域41之加壓與側方區域45之加壓之期間、側方區域45之加壓後,在不同步驟中進行該等加壓。於製造包含吸水性聚合物之吸收性芯體之情形時,較佳為於導管之中途設置吸水性聚合物之導入部。 In the same manner as the well-known fiber stacking device including the fiber stacking cylinder, the material for the absorbent core is supplied to the inside of the duct by suction from the bottom surface of the collecting recess 55, as shown in Fig. 7(b). The material for forming the absorbent core is deposited in a specific shape in the collecting recess 55. The absorbent core 40A is obtained by demolding the deposit 4' from the collecting recess 55. The absorbent core 40A may be pressurized and moderately compressed by a pair of rolls or the like before or after being coated with a clad material. As shown in Fig. 7(b), the portion including the core forming material deposited on the gas-impermeable members 57 and 58 is a low basis weight portion 43 or the like, and is deposited on the bottom surface of the gas-impermeable members 57 and 58. The part becomes the high basis weight 42 and the like. Further, as described above, by pressing the central portion 41 of the absorbent core 40A, a high basis weight portion 42 having a higher density than the low basis weight portion 43 is formed in the central portion 41, and becomes a central portion 41. The portions partially pressurize the side regions 45 separately, while the side regions 45 form a higher basis weight portion 46 having a higher density than the lower basis weight portions 47. Further, the central thick-walled region 41' of the absorptive core 40A may be formed before or after being coated with the packaged core material. The starting portion is adjacent to the pressurization (compression) of the high density portion 12. The pressurization (compression) in which the protrusion portion is adjacent to the high-density portion 12 may be performed simultaneously with the press of the step having a step on the circumferential surface and the central portion 41, or may be performed simultaneously with the pressurization of the side region 45. Further, by designing the step formed on the circumferential surface of the roller to an appropriate size, it can be performed simultaneously with the pressurization of the central portion 41 and the pressurization of the side region 45. Further, the pressurization of the central portion 41 and the pressurization of the side region 45 may be performed in different steps, or before the pressurization of the central region 41, the pressurization of the central region 41, and the pressurization of the lateral region 45. After the pressurization of the side region 45, the pressurization is performed in different steps. In the case of producing an absorbent core comprising a water-absorptive polymer, it is preferred to provide an introduction portion of the water-absorbent polymer in the middle of the conduit.
作為正面片材2a及非肌膚側片材3,可無特別限制地使用與於該技術領域中先前所使用之片材相同者。例如,作為正面片材2a,可使用具有液體透過性之不織布或穿孔膜。作為非肌膚側片材3,可使用合成樹脂製之液體不透過性膜、或紡黏-熔噴-紡黏積層不織布等耐水壓較高之撥水性之不織布。又,作為側部片材2b,可使用耐水壓較高之撥水性之不織布、例如紡黏-熔噴-紡黏積層不織布等。 As the front sheet 2a and the non-skin side sheet 3, the same as those previously used in the technical field can be used without particular limitation. For example, as the front sheet 2a, a non-woven fabric or a perforated film having liquid permeability can be used. As the non-skin side sheet 3, a liquid impervious film made of a synthetic resin or a non-woven fabric having a high water pressure resistance such as a spunbond-meltblown-spunbonded nonwoven fabric can be used. Further, as the side sheet 2b, a water-repellent non-woven fabric having a high water pressure resistance, for example, a spunbond-melt-spray-spun layer non-woven fabric or the like can be used.
以上,對本發明基於其較佳之實施形態進行說明,但本發明並不限定於上述實施形態。 Hereinabove, the present invention has been described based on preferred embodiments thereof, but the present invention is not limited to the above embodiments.
例如於側方區域45,亦可不存在側方橫槽44b及側方縱槽52中之任一者或兩者。又,側方橫槽44b及側方縱槽52中之任一者或兩者亦可形成於吸收性芯體40之肌膚對向面側。 For example, in the side region 45, either or both of the lateral lateral grooves 44b and the lateral longitudinal grooves 52 may not be present. Further, either or both of the lateral lateral grooves 44b and the lateral longitudinal grooves 52 may be formed on the skin facing surface side of the absorbent core 40.
又,自中央區域41遍及側方區域45連續之橫槽44既可僅形成於吸收性物品之排泄部對向部,亦可僅形成於後方部。 Moreover, the lateral groove 44 which is continuous from the central region 41 and the side region 45 may be formed only in the opposing portion of the excretion portion of the absorbent article, or may be formed only in the rear portion.
又,吸收性芯體既可僅包含紙漿纖維等纖維材料,亦可包含纖維材料與高吸水性聚合物之兩者。作為纖維材料,可無特別限制地使用先前用於經期衛生棉或衛生護墊、拋棄式尿布等吸收性物品之吸收體之各種纖維材料,例如可使用紙漿纖維、嫘縈纖維、棉纖維等纖維 素系纖維之短纖維、聚乙烯等合成纖維之短纖維等。該等纖維可單獨使用1種或組合2種以上使用。又,纖維材料較佳為整體或一部分為紙漿纖維,纖維材料中之紙漿纖維之比率較佳為50~100質量%,更佳為80~100質量%,進而較佳為100質量%。再者,對於吸收性芯體,除調配高吸水性聚合物以外,亦可視需要調配除臭劑或抗菌劑等。 Further, the absorbent core may include only a fibrous material such as pulp fibers, or may include both a fibrous material and a superabsorbent polymer. As the fibrous material, various fibrous materials previously used for an absorbent body of an absorbent article such as a sanitary napkin or a sanitary pad or a disposable diaper can be used without particular limitation, and for example, fibers such as pulp fibers, rayon fibers, and cotton fibers can be used. Short fibers of plain fibers, short fibers of synthetic fibers such as polyethylene, and the like. These fibers may be used alone or in combination of two or more. Further, the fiber material is preferably a whole or a part of pulp fibers, and the ratio of the pulp fibers in the fiber material is preferably from 50 to 100% by mass, more preferably from 80 to 100% by mass, even more preferably from 100% by mass. Further, in addition to the superabsorbent polymer, a deodorant or an antibacterial agent may be blended as needed for the absorbent core.
又,於上述實施形態中,係使高基重部之密度高於低基重部,但亦可藉由省略吸收性芯體之加壓步驟,而使兩者之密度相同。 Further, in the above embodiment, the density of the high basis weight portion is higher than that of the low basis weight portion, but the density of the both may be the same by omitting the pressing step of the absorbent core.
又,本發明之吸收性物品除為經期衛生棉以外,亦可為衛生護墊(陰道分泌物護墊)、失禁護墊、拋棄式尿布等其他吸收性物品。上述一實施形態中之說明省略部分及僅一實施形態所具有之必要條件可分別適當應用於其他實施形態,又,各實施形態中之必要條件可適當於實施形態間相互置換。 Moreover, the absorbent article of the present invention may be a sanitary pad (vaginal secretion pad), an incontinence pad, a disposable diaper, or the like, in addition to the menstrual napkin. The description of the above-described embodiments and the necessary conditions of only one embodiment can be appropriately applied to other embodiments, and the necessary conditions in the respective embodiments can be replaced with each other as appropriate.
關於上述實施形態,本發明進而揭示以下吸收性物品。 In the above embodiment, the present invention further discloses the following absorbent article.
<1>一種吸收性物品,其係於形成肌膚對向面之肌膚側片材與形成非肌膚對向面之非肌膚側片材之間具備吸收體之吸收性物品,上述吸收體包含沿吸收性物品之前後方向較長之縱長形狀之吸收性芯體,上述吸收性芯體於排泄部對向部具有:側方區域,其位於寬度方向兩側;以及中央區域,其位於較該側方區域更靠寬度方向中央側且厚度大於該側方區域;上述側方區域與上述中央區域係一體成形,上述中央區域係朝上述非肌膚側片材側突出,上述吸收體中,於俯視時上述側方區域所在之區域具有不與上述非肌膚側片材接合之非接合區域。 <1> An absorbent article comprising an absorbent article comprising an absorbent body between a skin side sheet forming a skin facing surface and a non-skin side sheet forming a non-skin facing surface, wherein the absorbent body comprises absorption along the absorbent body a longitudinally elongated absorbent core having a longer longitudinal direction, wherein the absorbent core has a lateral portion on a side opposite to the width direction and a central portion on the side opposite to the side The square region is further located on the center side in the width direction and has a thickness larger than the side region; the lateral region is integrally formed with the central region, and the central region protrudes toward the non-skin side sheet side, and the absorbent body is viewed from above. The region in which the lateral region is located has a non-joining region that is not joined to the non-skin side sheet.
<2>如上述<1>之吸收性物品,其中於上述側方區域中之與上述中央區域鄰接之部分,具有密度高於上述中央區域之高密度部。 <2> The absorbent article according to the above <1>, wherein a portion of the side region adjacent to the central region has a high density portion having a higher density than the central region.
<3>如上述<1>或<2>之吸收性物品,其中於上述中央區域之非肌膚對向面側,形成有沿著上述吸收性芯體之長度方向且於肌膚 對向面側具有底部之縱槽,就上述縱槽而言,相較開口部,上述底部之寬度方向長度變窄。 <3> The absorbent article according to the above <1> or <2>, wherein the non-skin opposing side of the central region is formed along the length of the absorbent core and on the skin In the vertical groove having the bottom portion on the facing surface side, the length of the bottom portion in the width direction is narrower than the opening portion.
<4>如上述<3>之吸收性物品,其中上述縱槽之寬度方向長度係隨著自開口部朝向底部而逐漸變窄。 <4> The absorbent article according to the above <3>, wherein the longitudinal direction of the longitudinal groove is gradually narrowed from the opening toward the bottom.
<5>如上述<1>至<4>中任一項之吸收性物品,其中於上述中央區域形成有朝上述吸收性芯體之寬度方向延伸之中央橫槽。 The absorbent article according to any one of the above aspects, wherein the central portion is formed with a central lateral groove extending in the width direction of the absorbent core.
<6>如上述<1>至<5>中任一項之吸收性物品,其中於上述側方區域形成有朝上述吸收性芯體之長度方向延伸之側方縱槽。 The absorbent article according to any one of the above aspects, wherein the side region is formed with a lateral longitudinal groove extending in the longitudinal direction of the absorbent core.
<7>如上述<6>之吸收性物品,其中於上述側方區域形成有朝上述吸收性芯體之寬度方向延伸之側方橫槽。 <7> The absorbent article according to the above <6>, wherein the side lateral region is formed with a lateral lateral groove extending in the width direction of the absorbent core.
<8>如上述<3>至<7>中任一項之吸收性物品,其中上述縱槽及橫槽中之任一者或兩者係藉由減少上述吸收性芯體之吸收性材料之基重而形成。 The absorbent article of any one of the above-mentioned <3> to <7> wherein the one or both of the longitudinal grooves and the lateral grooves are made of the absorbent material for reducing the absorbent core. Formed by basis weight.
<9>如上述<3>至<8>中任一項之吸收性物品,其中關於上述吸收性芯體之上述中央區域及側方區域之每一者皆係非肌膚對向面具有凹凸形狀,另一方面,肌膚對向面變得平坦。 The absorbent article according to any one of the above aspects, wherein the central region and the lateral region of the absorbent core have a concave-convex shape on a non-skin opposite surface. On the other hand, the opposite side of the skin becomes flat.
<10>如上述<3>至<9>中任一項之吸收性物品,其中於上述吸收性芯體之中央區域,具備與形成上述縱槽之底部之低基重部相比基重較高之高基重部。 The absorbent article according to any one of the above-mentioned <3>, wherein the central portion of the absorbent core has a basis weight smaller than a low basis weight portion forming a bottom portion of the longitudinal groove High high base.
<11>如上述<10>之吸收性物品,其中於上述中央區域之上述高基重部,吸收構件之密度高於上述低基重部。 <11> The absorbent article according to the above <10>, wherein the density of the absorbent member is higher than the low basis weight portion in the high basis weight portion of the central region.
<12>如上述<6>至<11>中任一項之吸收性物品,其中於上述吸收性芯體之上述側方區域,具備與形成上述縱槽之底部之低基重部相比基重較高之高基重部。 The absorbent article according to any one of the above-mentioned <6>, wherein the side region of the absorbent core has a base portion lower than a base portion forming a bottom portion of the longitudinal groove. Higher weight than the base weight.
<13>如上述<12>之吸收性物品,其中於上述側方區域之上述高基重部,與上述低基重部相比,吸收構件之密度變高。 <13> The absorbent article according to the above <12>, wherein the high basis weight portion of the side region has a higher density of the absorbent member than the low basis weight portion.
<14>如上述<1>至<13>中任一項之吸收性物品,其中上述中央突出部之寬度相對於上述吸收性芯體之整個寬度之比率為20%以上且80%以下。 The absorbent article according to any one of the above aspects, wherein the ratio of the width of the central protruding portion to the entire width of the absorbent core is 20% or more and 80% or less.
<15>如上述<1>至<14>中任一項之吸收性物品,其中上述中央區域之厚度相對於上述側方區域之厚度之比率為110%以上且400%以下。 The absorbent article according to any one of the above aspects, wherein the ratio of the thickness of the central region to the thickness of the lateral region is 110% or more and 400% or less.
<16>如上述<10>至<15>中任一項之吸收性物品,其中於上述吸收性芯體之上述中央區域,上述低基重部之基重相對於上述高基重部之基重之比率為5%以上且80%以下。 The absorbent article according to any one of the above-mentioned <10>, wherein the base of the low basis weight is at a base of the high basis weight in the central region of the absorbent core. The ratio of the weight is 5% or more and 80% or less.
<17>如上述<7>至<16>中任一項之吸收性物品,其中於上述中央區域與上述側方區域之交界部,該中央區域之橫槽與該側方區域之橫槽的上述吸收性芯體之長度方向上之位置一致。 The absorbent article of any one of the above-mentioned <7> to <16>, wherein the lateral groove of the central region and the lateral groove of the lateral region are at the boundary portion between the central region and the lateral region The positions of the absorbent cores in the longitudinal direction are the same.
<18>如上述<3>至<17>中任一項之吸收性物品,其中上述中央區域中之縱槽之底部位於較上述側方區域之下表面更靠下方。 <18> The absorbent article according to any one of <3> to <17> wherein the bottom of the longitudinal groove in the central region is located below the lower surface of the lateral region.
<19>如上述<3>至<17>中任一項之吸收性物品,其中上述中央區域中之縱槽之底部存在於與上述側方區域之下表面大致相同之位置。 The absorbent article according to any one of the above aspects, wherein the bottom portion of the longitudinal groove in the central region is located at substantially the same position as the lower surface of the lateral region.
<20>如上述<3>至<17>中任一項之吸收性物品,其中上述中央區域中之縱槽之底部位於較上述側方區域之下表面更靠上方。 The absorbent article according to any one of the above-mentioned <3>, wherein the bottom of the longitudinal groove in the central region is located above the lower surface of the lateral region.
<21>如上述<5>至<20>中任一項之吸收性物品,其中上述中央區域中之上述橫槽之深度相對於上述中央區域之吸收性芯體之整個厚度之比率為50%以上且95%以下。 The absorbent article according to any one of the above aspects, wherein the ratio of the depth of the lateral groove in the central region to the entire thickness of the absorbent core of the central region is 50%. Above and below 95%.
<22>如上述<1>至<21>中任一項之吸收性物品,其中上述中央突出部於排泄部對向部自側方區域之下表面突出之高度相對於中央區域之整個厚度之比率為20%以上且90%以下。 The absorbent article according to any one of the above-mentioned items, wherein the central protruding portion protrudes from the lower surface of the opposing portion of the excretory portion from the lower surface of the lateral portion with respect to the entire thickness of the central portion. The ratio is 20% or more and 90% or less.
<23>如上述<22>之吸收性物品,其中上述中央突出部於後 方部自側方區域之下表面突出之高度相對於中央區域之整個厚度之比率為20%以上且90%以下。 <23> The absorbent article according to the above <22>, wherein the central projection is rearward The ratio of the height of the square protruding from the surface below the side region to the entire thickness of the central region is 20% or more and 90% or less.
<24>如上述<1>至<23>中任一項之吸收性物品,其中上述吸收性物品於其長度方向具有前方部、排泄部對向部及後方部,於該排泄部對向部中之上述肌膚側片材、非肌膚側片材及吸收性芯體在俯視時重疊之區域即吸收性本體之左右兩側具備一對側翼部。 The absorbent article according to any one of the above aspects, wherein the absorbent article has a front portion, a drain portion facing portion, and a rear portion in a longitudinal direction thereof, and the drain portion is opposite to the drain portion The skin side sheet, the non-skin side sheet, and the absorbent core body have a pair of side flap portions on the left and right sides of the absorbent body in a region overlapping in a plan view.
<25>如上述<1>至<24>中任一項之吸收性物品,其中於上述後方部中之上述吸收性本體之左右兩側具有一對後翼部。 The absorbent article according to any one of the above aspects, wherein the absorbent body of the rear portion has a pair of rear wing portions on the left and right sides of the absorbent body.
<26>如上述<1>至<25>中任一項之吸收性物品,其中上述吸收性物品為經期衛生棉。 The absorbent article according to any one of the above-mentioned items, wherein the absorbent article is a menstrual sanitary napkin.
本發明之吸收性物品於穿著時之服貼感優異,尤其是於施加有較高之壓力時之服貼感優異。 The absorbent article of the present invention is excellent in the wearing feeling at the time of wearing, and is particularly excellent in the feeling of wearing when a high pressure is applied.
1‧‧‧衛生棉 1‧‧‧Sanitary cotton
2a‧‧‧正面片材 2a‧‧‧Front sheet
2b‧‧‧側部片材 2b‧‧‧Side sheet
3‧‧‧非肌膚側片材 3‧‧‧Non-skin side sheet
4‧‧‧吸收體 4‧‧‧Acceptor
5‧‧‧中央突出部 5‧‧‧ Central Highlights
12‧‧‧突起部鄰接高密度部 12‧‧‧The protrusion is adjacent to the high-density part
41‧‧‧中央區域 41‧‧‧Central area
41'‧‧‧中央厚壁區域 41'‧‧‧Central thick-walled area
42‧‧‧高基重部 42‧‧‧High base
42d‧‧‧形成中央區域之中央突出部之部分 42d‧‧‧ forming part of the central projection of the central area
42u‧‧‧較形成中央區域之中央突出部之部分更靠近肌膚側之部分 42u‧‧‧ is closer to the skin side than the part of the central protrusion that forms the central area
43‧‧‧低基重部 43‧‧‧Low basis weight
44a‧‧‧橫槽 44a‧‧‧ transverse slot
44b‧‧‧橫槽 44b‧‧‧ transverse slot
44d‧‧‧底部 44d‧‧‧ bottom
45‧‧‧側方區域 45‧‧‧Side area
45'‧‧‧吸收體之側方區域 45'‧‧‧Side area of the absorber
46‧‧‧高基重部 46‧‧‧High base
47‧‧‧低基重部 47‧‧‧Low basis weight
48‧‧‧低基重部 48‧‧‧Low basis weight
50‧‧‧縱槽 50‧‧‧ longitudinal slot
50a‧‧‧開口部 50a‧‧‧ openings
50b‧‧‧底部 50b‧‧‧ bottom
52‧‧‧側方縱槽 52‧‧‧ side longitudinal groove
52a‧‧‧開口部 52a‧‧‧ Opening
52b‧‧‧底部 52b‧‧‧ bottom
La‧‧‧開口部之寬度方向長度 La‧‧‧Width length of the opening
Lb‧‧‧底部之寬度方向長度 Length of the width of the bottom of Lb‧‧‧
S2‧‧‧側方區域之下表面 Surface under the S2‧‧‧ lateral area
t‧‧‧中央突出部之突出高度 t‧‧‧The protruding height of the central protrusion
t1‧‧‧中央區域之厚度 T1‧‧‧ Thickness of the central area
t2‧‧‧側方區域之厚度 Thickness of the lateral area of t2‧‧‧
W1‧‧‧中央突出部之寬度 W1‧‧‧Width of central projection
W2‧‧‧吸收性芯體之整個寬度 W2‧‧‧The entire width of the absorbent core
Y‧‧‧寬度方向 Y‧‧‧Width direction
Claims (26)
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JP2014221015A JP6181027B2 (en) | 2014-10-30 | 2014-10-30 | Absorbent articles |
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CN (1) | CN106794085B (en) |
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CN109069324A (en) * | 2016-12-26 | 2018-12-21 | 花王株式会社 | Absorbent commodity |
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JP6473492B2 (en) * | 2016-12-27 | 2019-02-20 | 花王株式会社 | Absorbent articles |
WO2018123434A1 (en) * | 2016-12-27 | 2018-07-05 | 花王株式会社 | Absorbent article |
JP6764781B2 (en) * | 2016-12-27 | 2020-10-07 | 花王株式会社 | Absorbent article |
JP6578341B2 (en) * | 2017-12-14 | 2019-09-18 | 花王株式会社 | Sanitary napkin |
JP6578342B2 (en) * | 2017-12-14 | 2019-09-18 | 花王株式会社 | Sanitary napkin |
JP2019209120A (en) * | 2018-06-05 | 2019-12-12 | 花王株式会社 | Absorbent article |
WO2019235427A1 (en) * | 2018-06-05 | 2019-12-12 | 花王株式会社 | Absorbent article |
JP7125310B2 (en) * | 2018-09-04 | 2022-08-24 | 花王株式会社 | Pad type absorbent article |
JP6968133B2 (en) * | 2019-10-15 | 2021-11-17 | 花王株式会社 | Absorbent article |
KR102429155B1 (en) * | 2020-06-05 | 2022-08-04 | 주식회사 제이투엘에프에이 | Hygienic band |
JP2024044188A (en) * | 2022-09-20 | 2024-04-02 | ユニ・チャーム株式会社 | Absorbent article |
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JP2006141721A (en) * | 2004-11-19 | 2006-06-08 | Kao Corp | Absorptive article |
JP4785693B2 (en) * | 2006-09-27 | 2011-10-05 | 花王株式会社 | Absorbent articles |
WO2010071508A1 (en) * | 2008-12-16 | 2010-06-24 | Sca Hygiene Products Ab | Absorbent article with improved waste containment |
JP5551926B2 (en) * | 2009-12-09 | 2014-07-16 | 花王株式会社 | Absorbent articles |
JP5383589B2 (en) * | 2010-05-20 | 2014-01-08 | ユニ・チャーム株式会社 | Body fluid absorber and method for producing the same |
JP5546441B2 (en) * | 2010-12-14 | 2014-07-09 | 花王株式会社 | Absorbent articles |
RU2568863C2 (en) * | 2010-12-17 | 2015-11-20 | Као Корпорейшн | Absorbent article |
JP5581192B2 (en) * | 2010-12-17 | 2014-08-27 | 花王株式会社 | Absorbent articles |
JP6271186B2 (en) * | 2012-11-08 | 2018-01-31 | 花王株式会社 | Absorbent articles |
JP5604500B2 (en) * | 2012-11-27 | 2014-10-08 | 花王株式会社 | Absorbent articles |
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CN109069324A (en) * | 2016-12-26 | 2018-12-21 | 花王株式会社 | Absorbent commodity |
CN109069324B (en) * | 2016-12-26 | 2020-10-23 | 花王株式会社 | Absorbent article |
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TWI691313B (en) | 2020-04-21 |
WO2016067965A1 (en) | 2016-05-06 |
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JP2016086872A (en) | 2016-05-23 |
CN106794085B (en) | 2020-03-10 |
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