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CN111526850B - 吸收性物品 - Google Patents

吸收性物品 Download PDF

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Publication number
CN111526850B
CN111526850B CN201880083900.3A CN201880083900A CN111526850B CN 111526850 B CN111526850 B CN 111526850B CN 201880083900 A CN201880083900 A CN 201880083900A CN 111526850 B CN111526850 B CN 111526850B
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Prior art keywords
absorbent core
opening
width
skin
absorbent
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CN111526850A (zh
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黑田贤一郎
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Unicharm Corp
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Unicharm Corp
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    • AHUMAN NECESSITIES
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    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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
    • A61F13/534Absorbent 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 having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
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    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/472Sanitary towels, incontinence pads or napkins specially adapted for female use
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    • A61F13/475Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
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    • A61F13/531Absorbent 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 having a homogeneous composition through the thickness of the pad
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    • A61F13/00Bandages or dressings; Absorbent pads
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    • A61F13/531Absorbent 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 having a homogeneous composition through the thickness of the pad
    • A61F13/532Absorbent 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 having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
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    • AHUMAN NECESSITIES
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    • A61F13/534Absorbent 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 having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53704Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having an inhibiting function on liquid propagation
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    • A61F13/53Absorbent 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
    • A61F13/534Absorbent 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 having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/5376Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
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    • A61F2013/53765Absorbent 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 having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
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Abstract

吸收性物品(10)具有:中央区域(R3),其包含与穿着者的排泄口相对的排泄口抵接部;表面片(11);吸收芯(20);以及开口部(45),其跨表面片和吸收芯地沿厚度方向延伸。在吸收芯中,在吸收芯的非肌肤相对面设有沿厚度方向凹陷的凹部(30)。开口部至少配置于中央区域。凹部的至少一部分在俯视时位于比开口部靠外侧的位置,并且朝向吸收芯的外缘(20E)延伸。

Description

吸收性物品
技术领域
本发明涉及生理用卫生巾等吸收性物品。
背景技术
专利文献1公开了具有设有多个凹部的吸收芯的吸收性物品。针对专利文献1的吸收芯的凹部而言,分别设有多个沿前后方向延伸的凹部和沿宽度方向延伸的凹部。在凹部之间设有小吸收部。凹部和小吸收部设于吸收芯的肌肤相对面侧。
现有技术文献
专利文献
专利文献1:日本特开2015-97715号公报
发明内容
发明要解决的问题
在专利文献1的吸收性物品中,从穿着者排出的体液被引导到在与排泄口相对的区域设置的凹部和小吸收部。体液在被小吸收部吸收的同时,被凹部向宽度方向的外侧和前后方向的外侧引导。凹部在吸收芯的肌肤相对面侧到达吸收芯的宽度方向的外侧缘和前后方向的外端缘。因此,从穿着者排出的体液在被向吸收芯的非肌肤相对面侧引导之前,会在吸收芯的肌肤相对面侧向吸收芯的整体扩散,从而有可能发生体液的泄漏。
因此,期望一种在抑制体液泄漏的同时易于将体液向吸收芯的整体引导的吸收性物品。
一个技术方案的吸收性物品具有:中央区域,其包含与穿着者的排泄口相对的排泄口抵接部;表面片;吸收芯,其配置于所述表面片的非肌肤相对面侧;以及开口部,其跨所述表面片和所述吸收芯地沿厚度方向延伸,其中,在所述吸收芯中,在所述吸收芯的非肌肤相对面设有沿厚度方向凹陷的凹部,所述开口部至少配置于所述中央区域,所述凹部的至少一部分在俯视时位于比所述开口部靠外侧的位置,并且朝向所述吸收芯的外缘延伸。
附图说明
图1是从肌肤相对面侧观察到的实施方式的吸收性物品的俯视图。
图2是沿着图1所示的A-A线的剖视图。
图3是沿着图1所示的B-B线的剖视图。
图4是示意性地表示吸收芯的体液扩散情况的图。
图5是表面片的示意放大图。
具体实施方式
(1)实施方式的概要
根据本说明书和附图的记载,至少明确以下的事项。
一个方案的吸收性物品具有:前后方向;宽度方向,其与所述前后方向正交;中央区域,其包含与穿着者的排泄口相对的排泄口抵接部;表面片;吸收芯,其配置于所述表面片的非肌肤相对面侧;以及开口部,其跨所述表面片和所述吸收芯地沿厚度方向延伸,其中,在所述吸收芯中,在所述吸收芯的非肌肤相对面设有沿厚度方向凹陷的凹部,所述开口部至少配置于所述中央区域,所述凹部的至少一部分在俯视时位于比所述开口部靠外侧的位置,并且朝向所述吸收芯的外缘延伸。
根据优选的一个方案,所述开口部到达所述吸收芯的非肌肤相对面。
利用开口部更易于将体液向吸收芯的非肌肤相对面引导,从而能够进一步抑制体液在吸收芯的肌肤相对面侧的扩散。
根据优选的一个方案,在包围所述开口部的周围部的至少局部未设置构成所述表面片的纤维和构成所述吸收芯的纤维压接而成的压接部。
若在开口部的周围部的整体形成有压接部,则被引导到开口部的体液会被引入到压接部,而容易在开口部的整个周围沿平面方向扩散。由于在周围部整体未形成压接部,因此能使被引导到开口部的体液与沿平面方向扩散相比更易于沿厚度方向扩散。
因此,能够在吸收芯的非肌肤相对面侧将体液向吸收芯的非肌肤相对面侧引导。
根据优选的一个方案,所述凹部具有沿所述宽度方向延伸的宽度凹部,所述宽度凹部在所述前后方向上隔开间隔地设有多个。
由于宽度凹部沿前后方向隔开间隔地配置有多个,因此利用沿前后方向隔开间隔地设置的多个折叠基点,易于使吸收芯沿着身体的圆度配置。通过将吸收芯沿着身体配置,从而更易于获得利用吸收芯的中央区域吸收体液且利用开口部和凹部使体液扩散的效果。
根据优选的一个方案,所述中央区域具有位于所述中央区域的所述宽度方向的中央的第1中央区域和位于相对于所述第1中央区域而言的所述宽度方向的两侧的一对第2中央区域,在所述第1中央区域设有所述开口部,在所述一对第2中央区域分别设有所述宽度凹部,所述宽度凹部关于宽度中心线对称地配置,所述宽度中心线穿过所述吸收芯的所述宽度方向的中心并且沿所述前后方向延伸。
能够将排出到第1中央区域的体液向非肌肤相对面侧引导,并且在吸收芯的非肌肤相对面侧将其从第1中央区域向第2中央区域侧引导。另外,由于宽度凹部是对称的,因此形成有将宽度凹部彼此相连的折叠基点,吸收芯的宽度方向整体更易于沿着身体。一个第2中央区域的宽度凹部和另一个第2中央区域的宽度凹部向相同的方向变形,并且它们的前后方向的位置一致,因此易于相互协作而维持由凹部实现的吸收芯的变形后的形状。
根据优选的一个方案,所述凹部具有沿所述前后方向延伸的前后凹部。
能够利用前后凹部将体液沿前后方向引导,从而能够使体液沿前后方向扩散。一般来说,吸收芯的前后方向的长度比宽度方向的长度长。通过设置前后凹部,从而易于将体液向吸收芯的前后方向的整个区域引导。
根据优选的一个方案,所述前后凹部设于所述前侧区域和所述后侧区域中的至少一者。
能够利用前后凹部将由中央区域的开口部引导到非肌肤相对面侧的体液向前侧区域或后侧区域引导。易于将体液向吸收芯的前后方向的整个区域引导。
根据优选的一个方案,所述凹部设有多个,设有将所述表面片和所述吸收芯沿厚度方向压缩而成的压缩部,所述压缩部在所述俯视时跨所述多个凹部地配置。
能够利用该压缩部引入体液,并借助压缩部将体液向多个凹部引导。利用凹部能够使体液在吸收芯的非肌肤相对面侧沿平面方向扩散,从而能够将体液向吸收芯的整体引导。
根据优选的一个方案,在所述表面片设有向非肌肤相对面侧凹陷的表面凹部和配置于所述表面凹部之间的表面凸部,所述表面凹部和表面凸部沿所述前后方向延伸,并且沿所述宽度方向交替地配置。
利用表面凹部,能够使体液沿前后方向扩散。一般来说,吸收芯的前后方向的长度比宽度方向的长度长。通过设置表面凹部,从而易于将体液向吸收芯的比较长的前后方向的整个区域引导。
(2)吸收性物品的结构
以下,参照附图对实施方式的吸收性物品进行说明。吸收性物品可以是生理用卫生巾、卫生护垫、母乳垫、成人用失禁垫、粪便垫或吸汗片那样的吸收性物品。特别地,吸收性物品可以是安装于使用者的内衣那样的穿着物品的内侧而使用的物品。
此外,在以下的附图的记载中,对相同或相似的部分标注相同或相似的附图标记。但是,附图是示意性的,应注意存在各尺寸的比例等与现实不同的情况。因此具体的尺寸等应参考以下的说明来判断。另外,在附图相互间也存在包含相互的尺寸的关系、比例不同的部分的情况。
图1是从肌肤相对面侧观察到的第1实施方式的吸收性物品10的俯视图。在此,“肌肤相对面侧”相当于在使用过程中面向穿着者的肌肤的那一侧。“非肌肤相对面侧”相当于在使用过程中朝向穿着者的肌肤相反侧的那一侧。图2是沿着图1所示的A-A线的剖视图,图3是沿着图1所示的B-B截面的剖视图。
吸收性物品10具有前后方向L和宽度方向W。前后方向L是从穿着者的前侧(腹侧)向后侧(背侧)延伸的方向,或者是从穿着者的后侧向前侧延伸的方向。宽度方向W是与前后方向L正交的方向。
吸收性物品10包含前侧区域R1、后侧区域R2以及中央区域R3。中央区域R3包含与穿着者的排泄口(例如阴道口)相对的排泄口抵接部R33。在将吸收性物品10穿戴于内衣时,中央区域R3位于内衣的下裆部。也就是说,排泄口抵接部R33是配置于穿着者的下裆即穿着者的两腿之间的区域。中央区域R3具有位于中央区域R3的宽度方向W的中央的第1中央区域R31以及位于相对于第1中央区域R31而言的宽度方向W的两侧的一对第2中央区域R32较佳。
前侧区域R1位于比中央区域R3靠前侧的位置。前侧区域R1的前端缘限定吸收性物品10的前端缘。后侧区域R2位于比中央区域R3靠后侧的位置。后侧区域R2的后端缘限定吸收性物品10的后端缘。后侧区域R2的前后方向L的长度比中央区域R3的前后方向L的长度长较佳。
在中央区域R3设有后述的翼部3较佳。另外,在后侧区域R2设有向宽度方向W的外侧鼓出的臀部翼片4较佳。翼部3的前端缘由翼部3的根部限定,相当于最向宽度方向W的内侧凹陷的两个部分中的位于前侧的部分。翼部3的前端缘也可以限定中央区域R3与前侧区域R1的分界。翼部3的后端缘由翼部3的根部限定,相当于最向宽度方向W的内侧凹陷的两个部分中的位于后侧的部分。翼部3的后端缘也可以限定中央区域R3与后侧区域R2的分界。
吸收性物品10包含朝向穿着者的肌肤的表面片11、朝向穿着者的肌肤的相反侧的背面片12以及配置于表面片11与背面片12之间的吸收芯20。表面片11设于比吸收芯20靠肌肤相对面侧T1的位置。背面片12设于比吸收芯20靠非肌肤相对面侧T2的位置。吸收芯20设于表面片11与背面片12之间。设有至少将表面片11和吸收芯20沿厚度方向压缩而成的压缩部41较佳。
表面片11是使体液等液体透过的透液性的片材。表面片11覆盖吸收芯20的宽度方向W的中央部较佳。表面片11沿前后方向L从前侧区域R1延伸至后侧区域R2较佳。表面片11由无纺布、织物、有孔塑料片、网眼片等具有透过液体的构造的任意的片状的材料形成。作为织物、无纺布的原材料,能够使用天然纤维、化学纤维中的任一者。表面片11可以由多个层构成,也可以由覆盖吸收芯20的片材和覆盖吸收芯20的外侧缘的侧片构成。
背面片12是不透液性的片材。背面片12能够使用聚乙烯片、以聚丙烯等为主体的层压无纺布、透气性的树脂膜、在纺粘无纺布或水刺无纺布等无纺布接合透气性的树脂膜而成的片材等。
吸收芯20至少配置于中央区域R3和后侧区域R2。另外,吸收芯20也可以从中央区域R3延伸至前侧区域R1。吸收芯20含有吸收液体的吸收材料。吸收芯20也可以被芯包层包覆。构成吸收芯20的吸收材料例如能够由亲水性纤维、浆粕以及高吸水性高分子(SAP)形成。芯包层例如能够由无纺布、棉纸构成。
如前述的那样,吸收性物品10具有翼部3和臀部翼片4。翼部3和臀部翼片4向比吸收芯20的在中央区域R3中的外侧缘靠宽度方向W的外侧的位置伸出。翼部3和臀部翼片4通过表面片11与背面片12的层叠而构成较佳。翼部3构成为能够向背面片12侧折回。翼部3在使用时向内衣的裆部的非肌肤相对面侧折回。
臀部翼片4位于比翼部3靠后侧的位置而设于后侧区域R2。臀部翼片4在使用时不折回而是配置于内衣与穿着者的臀部之间。在本实施方式中,在臀部翼片4未设置吸收材料。也可以取而代之地在臀部翼片4设置吸收材料。
接下来,对如此构成的吸收性物品10的体液的扩散构造进行说明。吸收性物品10构成为在抑制体液泄漏的同时易于将体液向吸收芯20的整体引导。吸收性物品10具有跨表面片11和吸收芯20地沿厚度方向延伸的开口部45。利用开口部45能够将排出到表面片11的肌肤相对面的体液向非肌肤相对面侧T2引入,并且能够将其向吸收芯20引导。开口部45跨表面片11和吸收芯20即可,也可以在厚度方向T上设于表面片11的局部和吸收芯20的局部。开口部45从表面片11的肌肤相对面贯通至吸收芯20的非肌肤相对面较佳。
开口部45至少设于中央区域R3较佳。中央区域R3包含排泄口抵接部R33,易于将从穿着者排出的体液导出。通过在该中央区域R3形成开口部45,从而能够利用开口部45将体液沿厚度方向T引导,也就是从肌肤相对面侧T1向非肌肤相对面侧T2引导。开口部45设于第1中央区域R31较佳。第1中央区域R31包含排泄口抵接部R33,是易于将体液从穿着者的排泄口导出的区域。另外,开口部45也可以设于前侧区域R1和后侧区域R2。
开口部45在俯视时可以是点状,也可以是直线状,还可以是曲线状,并且形成有多个较佳。开口部45可以通过不施加热地从表面片切割至吸收芯并打通那样的加工来形成,也可以利用线状的压花加工来形成,还可以利用点状的压花加工来形成。较佳的是,优选为不形成将构成表面片11和吸收芯20的纤维压接而成的压接部的加工。即,优选的是在包围开口部45的周围部R5(参照图3)的至少局部未设置压接部。若在开口部45的周围部R5的整体形成有压接部,则被引导到开口部45的体液会被引入到压接部,而容易沿平面方向扩散。由于在周围部R5未形成压接部,因此能使被引导到开口部45的体液与沿平面方向扩散相比更易于沿厚度方向扩散。因此,能够在吸收芯20的非肌肤相对面侧引导体液。此外,周围部R5是在俯视时包围开口部45的部分,并且是与开口部45之间的距离为表面片或吸收芯的厚度量的部分。另外,周围部的至少局部是开口部的俯视时的整个周围的局部。较佳的是,针对压接部而言,优选在周围部的50%以上不设置压接部。
在吸收芯20中,在吸收芯20的非肌肤相对面设有沿厚度方向凹陷的凹部30。凹部30从吸收芯20的非肌肤相对面侧T2朝向肌肤相对面侧T1凹陷。凹部30的底部(最大程度地凹陷的部分)未到达吸收芯20的肌肤相对面。因此,如图2和图3所示,在凹部30的肌肤相对面侧T1配置有吸收材料。凹部30的深度能够设为吸收芯的厚度的10%~80%。凹部30既可以由吸收材料的单位面积重量比周围的区域低的低单位面积重量部构成,也可以由沿厚度方向压缩而成的部分构成。
凹部30在俯视时位于比开口部45靠外侧的位置,并且朝向吸收芯20的外缘20E延伸。凹部30能够使由开口部45引导至非肌肤相对面侧的体液朝向吸收性物品的外缘扩散。凹部30位于一个开口部45的外侧即可,也可以不位于所有开口部45的外侧。例如,也可以在比凹部30靠外侧的位置配置开口部45。此外,外缘是构件的周边端,其包含前后方向的前端缘和后端缘以及宽度方向的外侧缘。另外,开口部45的外侧是指比开口部45靠外缘侧的位置。即,在开口部45与吸收芯20的外缘20E之间设有凹部30即可。凹部30设于前侧区域R1、中央区域R3以及后侧区域R2较佳。在中央区域R3中,凹部30设于第2中央区域R32较佳。
凹部包含沿宽度方向W延伸的宽度凹部31以及沿前后方向L延伸的前后凹部32较佳。宽度凹部31不仅包含平行于宽度方向W地延伸的结构,还包含沿着相对于宽度方向W成45度以下的角度的线延伸的结构。另外,前后凹部32不仅包含平行于前后方向L地延伸的结构,还包含沿着相对于前后方向L成小于45度的角度的线延伸的结构。
宽度凹部31设于开口部45的宽度方向W的外侧较佳。利用宽度凹部31能够将被开口部45沿厚度方向T引导的体液向宽度方向W的外侧引导,从而使体液易于在吸收芯20的宽度方向W的整个区域扩散。宽度凹部31设于开口部45的前后方向L的范围内也就是从开口部的前后方向的整个区域沿宽度方向延伸的区域较佳。宽度凹部31设于第2中央区域R32较佳。通过在第1中央区域R31设有开口部45并且在第2中央区域R32设有宽度凹部31,从而能够在第1中央区域R31处将体液向非肌肤相对面侧T2引导,并且能够在吸收芯20的非肌肤相对面侧T2将体液从第1中央区域R31向第2中央区域侧引导。另外,宽度凹部31也可以设于开口部45的前后方向L的外侧。本实施方式的宽度凹部31分别配置于前侧区域R1、中央区域R3以及后侧区域R2。因此,能够发挥使体液在吸收芯20的前后方向的整个区域扩散的效果。
前后凹部32设于开口部45的前后方向L的外侧较佳。能够利用开口部45将体液向前后方向L的外侧引导。一般来说,吸收芯20的前后方向L的长度比宽度方向W的长度长。通过设置前后凹部32,从而易于将体液向吸收芯20的前后方向L的整个区域引导。前后凹部32设于开口部45的宽度方向W的范围内也就是从开口部的宽度方向的整个区域沿前后方向延伸的区域较佳。另外,前后凹部32也可以设于开口部45的宽度方向W的外侧。前后凹部32跨吸收性物品10的宽度方向W的中央地配置较佳。前后凹部32设于前侧区域R1和后侧区域R2中的至少一者较佳。利用前后凹部32将由中央区域R3的开口部45引导到非肌肤相对面侧的体液向前侧区域R1或后侧区域R2引导,从而易于将体液向吸收芯20的前后方向L的整个区域引导。
优选的是设有宽度凹部31和前后凹部32这两者。能够使体液沿宽度方向W和前后方向L这两者进行扩散,从而更易于将体液向吸收芯20的整体引导。另外,宽度凹部31和前后凹部32局部地相连较佳。宽度凹部31和前后凹部32协作,从而能够高效地使体液沿前后方向L和宽度方向W扩散。
接下来,基于图4对体液的扩散情况进行说明。图4是示意性地表示吸收芯20的体液的扩散情况的图。从穿着者的排泄口排出的体液被向包含排泄口抵接部R33的中央区域R3引导。被引导至该中央区域R3的体液被开口部45向非肌肤相对面侧T2引导(图4的箭头A)。此时,由于开口部45跨表面片11和吸收芯20,因此易于将体液引导到吸收芯20的内部(比肌肤相对面靠内侧的位置)。通过将体液向非肌肤相对面侧引导,从而能够抑制体液在吸收芯20的肌肤相对面侧的扩散,从而抑制体液的泄漏。
被引导至吸收芯20的体液在吸收芯20内扩散。更详细地讲,利用设于开口部45的宽度方向W的外侧的宽度凹部31使体液朝向宽度方向W的外侧扩散(箭头B)。另外,利用设于开口部45的前后方向L的外侧的前后凹部32使体液朝向前后方向L的外侧扩散(箭头C)。此时,由于宽度凹部31与前后凹部32相连,因此由前后凹部32向后侧引导的过程中的体液会借助宽度凹部31被朝向吸收芯20的外缘20E引导(箭头D)。凹部30形成于吸收芯20的非肌肤相对面,从而在吸收芯20的非肌肤相对面侧能够使体液沿平面方向扩散,从而能够将体液向吸收芯20的整体引导。因此,在抑制体液泄漏的同时,易于将体液向吸收芯20的整体引导。
另外,为了使由开口部45引导的体液易于向凹部30移动,优选将开口部45和凹部30设于厚度方向上的相同水平。即,开口部45的非肌肤相对面位于比凹部30的底面(肌肤相对面)靠非肌肤相对面侧T2的位置较佳。利用这样的结构,易于使体液从开口部45向凹部30移动。较佳的是,开口部45到达吸收芯20的非肌肤相对面较佳。利用开口部45易于将体液向吸收芯20的非肌肤相对面引导,从而能够进一步抑制体液在吸收芯20的肌肤相对面侧的扩散。
宽度凹部31在前后方向L上隔开间隔地设有多个较佳。身体的沿着从腹侧朝向背侧的前后方向L的形状是带有圆度的曲线状。优选的是,吸收性物品在穿戴于穿着者的状态下沿着身体的圆度配置。宽度凹部31沿宽度方向延伸,并且易于成为吸收芯20的沿宽度方向延伸的折叠基点。利用沿前后方向隔开间隔地配置的多个折叠基点,易于使吸收芯20沿着身体的圆度配置。通过将吸收芯20沿着身体配置,从而更易于获得在中央区域R3中吸收体液并利用开口部45和凹部30使体液扩散的效果。另外,由于凹部形成于吸收芯20的非肌肤相对面,因此,若在穿戴时以吸收芯20沿着身体弯曲的方式变形,则凹部30的非肌肤相对面侧的宽度(前后方向的长度)变得比变形前的长度长。位于吸收芯20的非肌肤相对面侧的体液的扩散路径的截面积变大,从而在吸收芯20的非肌肤相对面侧更易于使体液扩散。
宽度凹部31关于宽度中心线CL对称地配置较佳,宽度中心线CL穿过吸收芯20的宽度方向的中心并且沿前后方向L延伸。由于宽度凹部31是对称的,因此形成将宽度凹部31彼此相连的折叠基点,从而使吸收芯20的宽度方向整体更易于沿着身体。另外,由于一个第2中央区域的宽度凹部31和另一个第2中央区域的宽度凹部31向相同的方向变形(以肌肤相对面侧为内侧地变圆的变形),并且它们的前后方向L的位置一致,因此易于相互协作而维持由宽度凹部31实现的吸收芯20的变形后的形状。
优选的是,凹部30未到达吸收芯20的外缘20E。由凹部30引导的体液能够被设于吸收芯20的外缘的吸收材料吸收,从而能够防止侧漏。在其他方式中,凹部30也可以到达吸收芯20的外缘。
在俯视时,压缩部41跨多个凹部30地配置较佳。在压缩部41处,表面片11和吸收芯20被压缩,与其周围相比密度较高,从而易于引入体液。另外,在凹部30未配置吸收芯20,与压缩部41相比密度较低。因此,由压缩部41引入的体液在沿着压缩部41扩散后易于被引导到凹部30。能够利用压缩部41引入体液,并借助压缩部41将体液向多个凹部30引导。利用凹部30能够使体液在吸收芯20的非肌肤相对面侧沿平面方向扩散,从而能够将体液向吸收芯20的整体引导。另外,压缩部41和凹部30局部地相连较佳。由此,体液更易于从压缩部41向凹部30扩散,从而能够提高将体液向吸收芯20的整体引导的效果。
另外,也可以利用表面片11使体液沿前后方向扩散。图5是表面片的示意放大图。在表面片11设有向非肌肤相对面侧凹陷的表面凹部11A和配置于表面凹部11A之间的表面凸部11B较佳。表面凹部11A和表面凸部11B沿前后方向L延伸并且沿宽度方向W交替地配置较佳。能够使体液沿着表面凹部11A在前后方向L上扩散。一般来说,吸收芯20的前后方向的长度比宽度方向的长度长。通过设置表面凹部11A,从而易于将体液向吸收芯20的比较长的前后方向的整个区域引导。
以上使用上述的实施方式对本发明详细地进行了说明,但对于本领域技术人员来说显而易见的是,本发明不限定于在本说明书中已说明的实施方式。本发明能够在不脱离由权利要求书的记载确定的本发明的主旨和范围的前提下作为修正和变更形态来实施。因此,本说明书的记载以例示说明为目的,对本发明不具有任何限制性的意思。
产业上的可利用性
能够提供一种在抑制体液泄漏的同时易于将体液向吸收芯的整体引导的吸收性物品。
附图标记说明
10、吸收性物品;11、表面片;11A、表面凹部;11B、表面凸部;12、背面片;20、吸收芯;30、凹部;31、宽度凹部;32、前后凹部;41、压缩部;45、开口部;R1、前侧区域;R2、后侧区域;R3、中央区域;R5、周围部;R31、第1中央区域;R32、第2中央区域。

Claims (8)

1.一种吸收性物品,其具有:
前后方向;
宽度方向,其与所述前后方向正交;
中央区域,其包含与穿着者的排泄口相对的排泄口抵接部;
表面片;
吸收芯,其配置于所述表面片的非肌肤相对面侧;以及
开口部,其跨所述表面片和所述吸收芯地沿厚度方向延伸,其中,
在所述吸收芯中,在所述吸收芯的非肌肤相对面设有沿厚度方向凹陷并且吸收材料的单位面积重量比周围的吸收材料的单位面积重量低的凹部,
所述开口部至少配置于所述中央区域,
所述凹部具有朝向所述吸收芯的外缘沿所述宽度方向延伸的宽度凹部,
在比所述开口部靠所述宽度方向的外侧的位置仅配置有所述宽度凹部,
所述宽度凹部在所述前后方向上隔开间隔地配置有多个,
所述多个所述宽度凹部彼此分离开。
2.根据权利要求1所述的吸收性物品,其中,
所述凹部具有沿所述前后方向延伸的前后凹部,
所述前后凹部仅配置于比所述开口部靠后侧的位置,
所述宽度凹部设置为与所述前后凹部相连。
3.根据权利要求1或2所述的吸收性物品,其中,
所述开口部通过不施加热地从所述表面片切割至所述吸收芯的打通加工来形成,
在包围所述开口部的周围部未设置构成所述表面片的纤维和构成所述吸收芯的纤维压接而成的压接部。
4.根据权利要求1或2所述的吸收性物品,其中,
所述凹部设置为未到达所述吸收芯的外侧缘。
5.根据权利要求1或2所述的吸收性物品,其中,
所述开口部到达所述吸收芯的非肌肤相对面。
6.根据权利要求1或2所述的吸收性物品,其中,
所述中央区域具有位于所述中央区域的所述宽度方向的中央的第1中央区域和位于相对于所述第1中央区域而言的所述宽度方向的两侧的一对第2中央区域,
在所述第1中央区域设有所述开口部,
在所述一对第2中央区域分别设有所述宽度凹部,
所述宽度凹部关于宽度中心线对称地配置,所述宽度中心线穿过所述吸收芯的所述宽度方向的中心并且沿所述前后方向延伸。
7.根据权利要求1或2所述的吸收性物品,其中,
所述凹部设有多个,
设有将所述表面片和所述吸收芯沿厚度方向压缩而成的压缩部,
所述压缩部在俯视时跨所述多个凹部地配置。
8.根据权利要求1或2所述的吸收性物品,其中,
在所述表面片设有向非肌肤相对面侧凹陷的表面凹部和配置于所述表面凹部之间的表面凸部,
所述表面凹部和所述表面凸部沿所述前后方向延伸,并且沿所述宽度方向交替地配置。
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