JP2006325639A - Absorbent article - Google Patents
Absorbent article Download PDFInfo
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- JP2006325639A JP2006325639A JP2005149297A JP2005149297A JP2006325639A JP 2006325639 A JP2006325639 A JP 2006325639A JP 2005149297 A JP2005149297 A JP 2005149297A JP 2005149297 A JP2005149297 A JP 2005149297A JP 2006325639 A JP2006325639 A JP 2006325639A
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- longitudinal direction
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- absorbent
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- 230000002745 absorbent Effects 0.000 title claims abstract description 87
- 239000002250 absorbent Substances 0.000 title claims abstract description 87
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000003449 preventive effect Effects 0.000 abstract 1
- 230000029142 excretion Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 210000001124 body fluid Anatomy 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 7
- 239000010839 body fluid Substances 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000005871 repellent Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 206010021639 Incontinence Diseases 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
本発明は、生理用ナプキン、失禁パッド等の吸収性物品に関する。 The present invention relates to absorbent articles such as sanitary napkins and incontinence pads.
従来、吸収性物品の着用時に、吸収体が着用者の肌側へ隆起し、排泄部との密着性が向上する吸収性物品が知られている。この種の吸収性物品は、その肌当接面と着用者の肌との間に隙間が生じることを防ぎ、体液が、吸収性物品の肌当接面又は着用者の肌を伝わって漏れるのを低減することを目的としている。また、この種の吸収性物品には、吸収体が中高部を有し、着用時における吸収性物品の肌当接面と排泄部との密着性がより高められているものがある。 DESCRIPTION OF RELATED ART Conventionally, the absorbent article which an absorber raises to a wearer's skin side at the time of wear of an absorbent article, and the adhesiveness with a excretion part improves is known. This type of absorbent article prevents a gap from being formed between the skin contact surface and the wearer's skin, and body fluid leaks along the skin contact surface of the absorbent article or the wearer's skin. It aims at reducing. Further, in this type of absorbent article, there is an absorbent article that has a middle and high part, and the adhesion between the skin contact surface of the absorbent article and the excretion part when worn is further enhanced.
例えば、特許文献１には、吸収体の中高部の左右両側それぞれに、長手方向に延びる２つの可撓軸が間隔を空けて設けられており、前記２つの可撓軸の間には中高部よりも密度の高い吸収体から形成される支持部が設けられており、着用時には吸収性物品の長手方向中心線に向う圧縮力が作用して、前記支持部が中高部の下に入り込み、中高吸収体が肌側へ向かって隆起する吸収性物品が開示されている。 For example, in Patent Document 1, two flexible shafts extending in the longitudinal direction are provided on both the left and right sides of the middle and high portions of the absorber with a space therebetween, and the middle and high portions are disposed between the two flexible shafts. A support portion formed from an absorbent body having a higher density is provided, and when worn, a compressive force acting on the center line in the longitudinal direction of the absorbent article acts, so that the support portion enters under the mid-high portion, An absorbent article in which the absorbent body is raised toward the skin side is disclosed.
また、特許文献２には、吸収体の中高部の左右両側に吸収体の長手方向両端縁近傍まで延在する側部エンボスが形成されており、左右の前記エンボスは吸収体の前後において繋がっており、吸収体の長手方向中央部は幅方向外側に向って膨出しており、着用時に、該吸収体の長手方向中央部は、伸縮性を有する立体ギャザーシートの収縮力によって、肌側へ向って隆起する吸収性物品が開示されている。 Moreover, in patent document 2, the side part embossing extended to the longitudinal direction both-ends edge vicinity of an absorber is formed in the right-and-left both sides of the middle high part of an absorber, The said left and right said embossing is connected in the front and back of an absorber. The longitudinal central portion of the absorbent body bulges outward in the width direction, and when worn, the longitudinal central portion of the absorbent body is directed toward the skin side by the contraction force of the stretchable solid gather sheet. A raised absorbent article is disclosed.
特許文献１及び特許文献２記載の吸収性物品は共に、中高部を有する吸収体を構成部材としている。吸収体に中高部を設けると、吸収体の部材数が増加したり、製造工程数が増加し、吸収性物品の製造の手間及びコストが増える。更に、特許文献２記載の吸収性物品は、立体ギャザーシートの収縮力によって中高部を隆起させており、伸縮性を有する立体ギャザーシートも構成部材となっている。
また、特許文献２記載の吸収性物品は、立体ギャザーシートの収縮力により、中高吸収体を長手方向内側へ収縮させており、吸収体を幅方向に亘るシワが発生し、体液が該シワに沿って横漏れする可能性がある。
Both of the absorbent articles described in Patent Document 1 and Patent Document 2 include an absorbent body having a middle-high portion as a constituent member. When the middle and high parts are provided in the absorbent body, the number of members of the absorbent body is increased, the number of manufacturing steps is increased, and the labor and cost of manufacturing the absorbent article are increased. Furthermore, the absorbent article described in Patent Document 2 has the middle and high portions raised by the contraction force of the three-dimensional gather sheet, and the three-dimensional gather sheet having elasticity is also a constituent member.
In the absorbent article described in Patent Document 2, the medium-high absorbent body is contracted inward in the longitudinal direction due to the contraction force of the three-dimensional gather sheet, wrinkles are generated in the width direction of the absorbent body, and body fluid is generated in the wrinkles. There is a possibility of side leakage along.
従って、本発明の目的は、着用時に吸収体が肌側へ向って隆起し、優れたフィット性を有しており、製造が容易な吸収性物品を提供することにある。 Accordingly, an object of the present invention is to provide an absorbent article that is easy to manufacture because the absorbent body bulges toward the skin when worn, has an excellent fit.
本発明は、吸収層及び防漏層を備えた吸収性物品であって、前記吸収層における肌当接面側の長手方向両側部に一対の溝が設けられており、一対の該溝は、前記吸収層の長手方向に延びる中心線に対して略線対称な形状を有しており、一対の該溝それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されており、さらに、一対の前記溝それぞれは、前記長手方向中央領域から前方部または／および後方部に延びており、前記長手方向中央領域の前後の少なくとも一方において幅方向内側に括れた部分を有しており、該括れた部分において幅方向に跨ぐような折り線で折り畳まれている吸収性物品を提供することにより、上記目的を達成したものである。 The present invention is an absorbent article provided with an absorbent layer and a leak-proof layer, wherein a pair of grooves are provided on both sides in the longitudinal direction on the skin contact surface side in the absorbent layer, and the pair of grooves, The absorbent layer has a substantially line-symmetric shape with respect to a center line extending in the longitudinal direction, and each of the pair of grooves is formed to be convexly curved outward in the width direction in the central region in the longitudinal direction. Furthermore, each of the pair of grooves extends from the longitudinal central region to the front portion and / or the rear portion, and has a portion constricted inward in the width direction in at least one of the front and rear of the longitudinal central region. And the said objective is achieved by providing the absorbent article folded | folded by the fold line which straddles the width direction in this constricted part.
本発明の吸収性物品によれば、着用時に吸収体が肌側へ向って隆起し、優れたフィット性を有しており、製造が容易である。 According to the absorbent article of the present invention, the absorbent body bulges toward the skin when worn, has excellent fit, and is easy to manufacture.
以下、本発明の吸収性物品の好ましい本実施形態について、図１〜図６を参照しながら説明する。 Hereinafter, preferable this embodiment of the absorbent article of this invention is described, referring FIGS. 1-6.
本実施形態の吸収性物品は、生理用ナプキン１であり、図１に示すように、液保持性の吸収層１０及び液不透過性の防漏層１１を備え、実質的に縦長である。ナプキン１における吸収層１０は、液透過性の表面シート２及び液保持性の吸収体４とからなり、防漏層１１は、液不透過性の裏面シート３からなる。本実施形態のナプキン１における吸収層１０を形成している吸収体４のパルプ坪量は３００〜６００ｇ／ｍ2であり、比較的大きな坪量となっている。
本実施形態のナプキン１は、図１に示すように、吸収層１０における肌当接面側の長手方向両側部にヒートシール加工によるエンボスである一対の溝５，５が設けられている。一対の該溝５，５は、図２に示すように、吸収層１０の長手方向に延びる中心線及び幅方向に延びる中心線それぞれに対して略線対称な形状を有しており、一対の溝５，５それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されている。さらに、一対の溝５，５それぞれは、前記長手方向中央領域から前方部Ａおよび後方部Ｃに延びており、前記長手方向中央領域の前後において幅方向内側に括れた部分５Ｄ，５Ｅを有している。
詳述すると、一対の該溝５，５それぞれは、幅方向外側に凸に湾曲している部分５Ａ，５Ｂ，５Ｃが長手方向に３つ連なって形成されている。また、本実施形態のナプキン１において、長手方向の真ん中に位置する凸に湾曲している部分５Ｂは、ナプキン１を長手方向に前方部Ａ、前記長手方向中央領域である排泄部対向部Ｂ（着用者の液排泄部に対向配置される排泄部対向領域を幅方向中央に有する部分）及び後方部Ｃに区分した際の排泄部対向部Ｂに配されている。
更に、本実施形態のナプキン１は、その使用前においては、一対の溝５，５それぞれにおける３つの幅方向外側に凸に湾曲している部分５Ａ，５Ｂ，５Ｃの間に位置する２つの幅方向内側に括れた部分５Ｄ，５Ｅそれぞれを幅方向に跨ぐような折り線Ｓ１，Ｓ２（図２参照）で、図３に示すように、３つ折りに折り畳まれている。
The absorbent article of the present embodiment is a sanitary napkin 1 and includes a liquid-retaining absorbent layer 10 and a liquid-impermeable leak-proof layer 11 as shown in FIG. The absorbent layer 10 in the napkin 1 is composed of a liquid-permeable top sheet 2 and a liquid-retaining absorbent body 4, and the leak-proof layer 11 is composed of a liquid-impermeable back sheet 3. The pulp basis weight of the absorbent body 4 forming the absorbent layer 10 in the napkin 1 of the present embodiment is 300 to 600 g / m 2, which is a relatively large basis weight.
As shown in FIG. 1, the napkin 1 of the present embodiment is provided with a pair of grooves 5 and 5 that are embossed by heat seal processing on both side portions of the absorbent layer 10 on the skin contact surface side in the longitudinal direction. As shown in FIG. 2, the pair of grooves 5, 5 has a shape substantially axisymmetric with respect to the center line extending in the longitudinal direction and the center line extending in the width direction of the absorption layer 10. Each of the grooves 5 and 5 is formed to be convexly curved outward in the width direction in the central region in the longitudinal direction. Further, each of the pair of grooves 5 and 5 extends from the longitudinal central region to the front part A and the rear part C, and has portions 5D and 5E that are constricted inward in the width direction before and after the longitudinal central region. ing.
More specifically, each of the pair of grooves 5 and 5 is formed by connecting three portions 5A, 5B, and 5C that are convexly curved outward in the width direction in the longitudinal direction. Further, in the napkin 1 of the present embodiment, the convexly curved portion 5B located in the middle of the longitudinal direction includes the front part A in the longitudinal direction and the excretory part facing part B (the central region in the longitudinal direction). It is arranged in the excretion part facing part B when the excretion part opposing area | region arrange | positioned facing a wearer's liquid excretion part is divided into the width direction center) and the rear part C.
Further, the napkin 1 of the present embodiment has two widths positioned between the portions 5A, 5B, and 5C that are convexly curved outward in the three width directions in each of the pair of grooves 5 and 5 before use. Fold lines S1 and S2 (see FIG. 2) that cross each of the portions 5D and 5E confined to the inner side in the width direction are folded in three as shown in FIG.
本実施形態のナプキン１について、更に説明すると、一対の溝５，５それぞれにより、表面シート２と吸収体４とが接合されている。一対の該溝５，５それぞれは、図２に示すように、ナプキン１を長手方向に前方部Ａから排泄部対向部Ｂを通って後方部Ｃにまで亘って設けられている。また、一対の溝５，５それぞれは、図４に示すように、ナプキン１の厚み方向に吸収体４の裏面側近傍にまで深く延びて形成されており、排泄された体液が多量であっても、該体液は、肌当接面のみならず該溝５で一旦止められるため、該溝５を通って吸収体４に移動することもできる。 The napkin 1 of the present embodiment will be further described. The top sheet 2 and the absorbent body 4 are joined by the pair of grooves 5 and 5 respectively. As shown in FIG. 2, each of the pair of grooves 5 and 5 is provided so that the napkin 1 extends from the front part A through the excretory part facing part B to the rear part C in the longitudinal direction. Further, as shown in FIG. 4, each of the pair of grooves 5 and 5 is formed to extend deeply in the thickness direction of the napkin 1 to the vicinity of the back surface side of the absorbent body 4, and a large amount of body fluid is excreted. However, since the body fluid is temporarily stopped not only by the skin contact surface but also by the groove 5, it can also move to the absorbent body 4 through the groove 5.
一対の溝５，５について詳述すると、一対の溝５，５は、図２に示すように、吸収層１０の前方部Ａ及び後方部Ｃそれぞれにおいて、繋がって閉じている。そのため、ナプキン１が、着用時に幅方向から圧縮力を受けた場合、幅方向の中央部で長手方向に沿って２つ折りにされることが効果的に防止されている。
また、一対の該溝５，５を形成しているシール部は、前方部Ａにおいて前方に向って尖った形状を有して繋がっており、且つ後方部Ｃにおいて後方に向って尖った形状を有して繋がっている。そのため、前後方向の溝の幅（長手方向の長さ）が高坪量の吸収体を使用するほど広がってしまい、肌触りを低下させる場合もあったが、本実施形態のナプキン１では高坪量の吸収体４と表面シート２とを、幅の狭いシール部により接合することが可能となり、肌触りを良好に保つことができる。
The pair of grooves 5 and 5 will be described in detail. The pair of grooves 5 and 5 are connected and closed at the front part A and the rear part C of the absorbent layer 10 as shown in FIG. Therefore, when the napkin 1 receives compressive force from the width direction at the time of wearing, it is effectively prevented that the napkin 1 is folded in two along the longitudinal direction at the center portion in the width direction.
In addition, the seal portion forming the pair of grooves 5 and 5 is connected to the front portion A with a sharp shape toward the front, and has a sharp shape toward the rear at the rear portion C. Have and be connected. Therefore, the width of the groove in the front-rear direction (length in the longitudinal direction) increases as the high basis weight absorber is used, and the touch may be lowered, but the napkin 1 of the present embodiment has a high basis weight. The absorbent body 4 and the surface sheet 2 can be joined by a narrow seal portion, and the touch can be kept good.
本実施形態のナプキン１において、前述した一対の溝５，５により囲まれている吸収体４の中央部分は、ナプキン１が着用時に幅方向から圧縮力を受けた場合、肌方向へ向って隆起する隆起部４０を形成している。尚、着用前の隆起部４０は、隆起しておらず、ほぼ均一な吸収体坪量となっている。
隆起部４０は、図２に示すように、ナプキン１の長手方向に延びる中心線及び幅方向に延びる中心線それぞれに対して略線対称な形状である。また、隆起部４０は、幅方向両外側に凸に湾曲した部分が、長手方向に３つ連なって形成されており、前方部Ａ、排泄部対向部Ｂ及び後方部Ｃそれぞれに、幅方向両外側に凸に湾曲した前記部分４０Ａ，４０Ｂ，４０Ｃが設けられている。前記部分４０Ａと前記部分４０Ｂとの間、及び前記部分４０Ｂと前記部分４０Ｃとの間には、それぞれ、２つの幅方向内側に括れた部分４０Ｄ及び４０Ｅが形成されている。
In the napkin 1 of the present embodiment, the central portion of the absorbent body 4 surrounded by the pair of grooves 5 and 5 described above is raised toward the skin direction when the napkin 1 receives a compressive force from the width direction when worn. A raised portion 40 is formed. In addition, the protruding part 40 before wearing does not protrude, but has a substantially uniform absorbent basis weight.
As shown in FIG. 2, the raised portion 40 has a substantially line-symmetric shape with respect to the center line extending in the longitudinal direction of the napkin 1 and the center line extending in the width direction. Further, the protruding portion 40 is formed with three portions curved in a convex manner on both outer sides in the width direction, and is formed in the front portion A, the excretory portion facing portion B, and the rear portion C. The portions 40A, 40B, and 40C that are convexly curved outward are provided. Between the part 40A and the part 40B and between the part 40B and the part 40C, two parts 40D and 40E that are confined inward in the width direction are formed, respectively.
隆起部４０において、前記部分４０Ａの両側縁部は、図２に示すように、一対の溝５，５の前記部分５Ａ，５Ａから形成されており、前記部分４０Ｂの両側縁部は、一対の溝５，５の前記部分５Ｂ，５Ｂから形成されており、前記部分４０Ｃの両側縁部は、一対の溝５，５の前記部分５Ｃ，５Ｃから形成されている。 In the raised portion 40, both side edges of the portion 40A are formed from the portions 5A and 5A of the pair of grooves 5 and 5, as shown in FIG. 2, and both side edges of the portion 40B are The grooves 5 and 5 are formed from the portions 5B and 5B. Both side edges of the portion 40C are formed from the portions 5C and 5C of the pair of grooves 5 and 5.
本実施形態のナプキン１における隆起部４０において、排泄部対向部Ｂの前記部分４０Ｂの幅Ｗ１（長手方向において幅方向に沿った最大幅）は、図２に示すように、前方部Ａ及び後方部Ｃにおける前記部分４０Ａ及び４０Ｃそれぞれの幅Ｗ２（長手方向において幅方向に沿った最大幅）よりも広くなっている。また、排泄部対向部Ｂの前記部分４０Ｂの長手方向に沿った長さＬ１は、図２に示すように、前方部Ａ及び後方部Ｃにおける前記部分４０Ａ及び４０Ｃそれぞれの長手方向に沿った長さＬ２よりも長くなっている。
このような形状を有する隆起部４０の前記部分４０Ｂは、ナプキン１の着用時に、着用者の排泄部を長手方向及び幅方向に亘って覆うように当接する。
In the raised portion 40 of the napkin 1 of the present embodiment, the width W1 (the maximum width along the width direction in the longitudinal direction) of the portion 40B of the excretory portion facing portion B is, as shown in FIG. Each of the portions 40A and 40C in the portion C is wider than the width W2 (the maximum width in the longitudinal direction along the width direction). Moreover, the length L1 along the longitudinal direction of the part 40B of the excretory part facing part B is a length along the longitudinal direction of the parts 40A and 40C in the front part A and the rear part C, as shown in FIG. It is longer than L2.
The said part 40B of the protruding part 40 which has such a shape contact | abuts so that a wearer's excretion part may be covered over a longitudinal direction and the width direction at the time of wear of the napkin 1. FIG.
また、本実施形態のナプキン１は、図３に示すように、製品の状態では３つ折りに折り畳まれている。ナプキン１は、その一対の溝５，５の２つの括れた部分５Ｄ，５Ｅそれぞれにおいて、幅方向に跨ぐような折り線Ｓ１，Ｓ２で折り畳まれるため、折り畳みやすく、且つ該折り線Ｓ１，Ｓ２によるシワの発生が最小限となるようになされている。
ナプキン１を使用する際には、タブテープ８が外され、折り畳まれている前方部Ａ及び後方部Ｂそれぞれが長手方向外側に開かれる。このように展開されたナプキン１の隆起部４０において、２つの括れた部分４０Ｄ、４０Ｅそれぞれを幅方向に跨ぐ折り線Ｓ１，Ｓ２の跡はシワとなって残っている。
Moreover, the napkin 1 of this embodiment is folded in three in the state of a product, as shown in FIG. Since the napkin 1 is folded at the two constricted portions 5D and 5E of the pair of grooves 5 and 5 at the folding lines S1 and S2 extending across the width direction, the napkin 1 is easily folded and is formed by the folding lines S1 and S2. The generation of wrinkles is minimized.
When the napkin 1 is used, the tab tape 8 is removed, and each of the folded front part A and rear part B is opened outward in the longitudinal direction. In the raised portion 40 of the napkin 1 developed in this manner, the marks of the fold lines S1 and S2 straddling the two constricted portions 40D and 40E in the width direction remain as wrinkles.
次に、本実施形態のナプキン１が着用された状態について、以下に説明する。
ナプキン１は、ショーツ等の股下部内側に固定して着用され、ナプキン１の排泄部対向部Ｂにおける表面シート２の部分は、着用者の排泄部に当接する。この際ナプキン１は、図５に示すように、着用者の両太ももの付け根内側により左右から幅方向内側（図５中の矢印の方向）へ圧縮力を受ける。
ナプキン１は、左右から幅方向内側へ圧縮力を受けると、隆起部４０における２つの括れた部分４０Ｄ及び４０Ｅそれぞれを幅方向に跨ぐ折り線Ｓ１，Ｓ２跡のシワを起点に、図５に示すように、表面シート２と共に隆起部４０全体が肌側へ向って隆起する。
更に詳述すると、排泄部対向部Ｂにおける隆起部４０の両側縁部を形成している前記部分５Ｂにおいて、その幅方向最外側に位置する部分が、幅方向内側に向う圧縮力をいち早く受け止め、該圧縮力を前記溝５の長手方向全体に亘って伝え、隆起部４０の隆起を引き起こす。
ナプキン１における吸収体４の隆起部４０が、肌側へ向って隆起することで、隆起部４０Ｂの上に位置する表面シート２は、着用者の排泄部へ押し当てられ肌と密着する。更に、長手方向端部では溝が尖った形状で形成されているため、溝の内側は隆起が細くされるため、身体とのフィット性が向上し、溝の外では、隆起による影響を受け難く、吸収体がフラットとなり、液止め効果が高まる利点を有する。
Next, the state in which the napkin 1 of the present embodiment is worn will be described below.
The napkin 1 is fixed and worn on the inner side of the crotch such as shorts, and the portion of the topsheet 2 in the excretory part facing part B of the napkin 1 comes into contact with the excretion part of the wearer. At this time, as shown in FIG. 5, the napkin 1 receives a compressive force from the left and right in the width direction (in the direction of the arrow in FIG. 5) by the inner sides of the thighs of the wearer.
When the napkin 1 receives a compressive force from the left and right inward in the width direction, the napkin 1 is shown in FIG. Thus, the whole protruding part 40 protrudes toward the skin side with the surface sheet 2.
More specifically, in the portion 5B forming both side edges of the raised portion 40 in the excretory portion facing portion B, the portion located on the outermost side in the width direction quickly receives the compressive force toward the inner side in the width direction, The compressive force is transmitted over the entire longitudinal direction of the groove 5 to cause the raised portion 40 to be raised.
When the raised portion 40 of the absorbent body 4 in the napkin 1 is raised toward the skin side, the surface sheet 2 positioned on the raised portion 40B is pressed against the excretion portion of the wearer and is in close contact with the skin. Furthermore, since the groove is formed in a sharp shape at the end in the longitudinal direction, the ridge is narrowed inside the groove, so that the fit with the body is improved, and it is hardly affected by the bulge outside the groove. The absorber becomes flat and has the advantage of increasing the liquid stopping effect.
中央部隆起の程度は、ナプキン１を固定するショーツの身体への装着状態によってもことなるが、本発明品では、中央（排泄ポイント）の幅が広がった形状であるため、隆起が従来より高められ、身体とのフィット性が小さい下着の場合であっても、排泄ポイントにナプキンの吸収面を効果的にフィットさせることができる。 The degree of the central bulge varies depending on the state of the shorts that fix the napkin 1 attached to the body, but in the present invention product, the bulge is higher than before because the width of the central (excretion point) is widened. Even if it is a case of underwear with small fit with a body, the absorption surface of a napkin can be effectively fitted to an excretion point.
隆起部４０が隆起した状態において、吸収体４の隆起部４０における表面側及び裏面側は共に、図６に示すように、肌側へ向って凸に湾曲している。
また、隆起部４０が肌方向へ向って隆起した際、隆起部４０の上に位置する表面シート２も、図６に示すように、肌側に向って凸に湾曲し、２つの括れた部分４０Ｄ、４０Ｅそれぞれにおける折り線Ｓ１，Ｓ２跡のシワが伸ばされ実質的に消失する。
In the state where the raised portion 40 is raised, both the front side and the back side of the raised portion 40 of the absorber 4 are convexly curved toward the skin side as shown in FIG.
Moreover, when the protruding part 40 protrudes toward the skin direction, the surface sheet 2 positioned on the protruding part 40 is also curved convexly toward the skin side as shown in FIG. The wrinkles of the fold lines S1 and S2 in each of 40D and 40E are extended and substantially disappear.
本実施形態のナプキン１について、更に説明すると、図２に示すように、一対の溝５，５それぞれの幅方向外側に、幅方向内側に凸に湾曲している溝６が設けられている。一対の該溝６，６それぞれは、ヒートシール加工によるエンボスにより形成されており、該溝６により、表面シート２と吸収体４と、更に、後述する内部シート７とが接合されている。一対の該溝６，６それぞれは、その長さ（ナプキン１の長手方向に沿った長さ）が前記溝５と略同じであり、また、図４に示すように、ナプキン１の厚み方向に吸収体４の中程まで延びている。 The napkin 1 of the present embodiment will be further described. As shown in FIG. 2, a groove 6 that is convexly curved inward in the width direction is provided on the outer side in the width direction of each of the pair of grooves 5 and 5. Each of the pair of grooves 6 and 6 is formed by embossing by heat sealing, and the top sheet 2 and the absorbent body 4 and further an inner sheet 7 described later are joined by the grooves 6. The length of each of the pair of grooves 6 and 6 (the length along the longitudinal direction of the napkin 1) is substantially the same as that of the groove 5, and as shown in FIG. It extends to the middle of the absorber 4.
本実施形態のナプキン１の吸収体４の両側部裏面側には、図４に示すように、撥水性の一対の内部シート７、７が配されている。各内部シート７の幅方向外側の側部は、吸収体４の側縁から延出し、吸収体４と表面シート２の間に巻き上げられ、肌当接面側の長手方向の両側部において表面シート２及び吸収体４と前記溝６によって接合されている。更に、吸収体４は、非肌当接面側に裏面シート３が配されることによって、撥水性の内部シート７と裏面シート３により実質的に包まれており、吸収された体液が外に漏れることが防がれている。
また、内部シート７は、ナプキン１の裏面側の長手方向の両側部において、図４に示すように、吸収体４及び表面シート２と接着剤により接合されている。なお、撥水性の内部シート７を用いる代わりに、吸収体の両側縁それぞれから裏面シート３及び表面シート２を幅方向外側に延出し接合したフラップ部を形成し、防漏効果を高めることもできる。
As shown in FIG. 4, a pair of water-repellent inner sheets 7 and 7 are arranged on the back surfaces of both sides of the absorbent body 4 of the napkin 1 of the present embodiment. The side portions on the outer side in the width direction of each inner sheet 7 extend from the side edge of the absorbent body 4 and are wound up between the absorbent body 4 and the top sheet 2. 2 and the absorber 4 are joined by the groove 6. Furthermore, the absorbent body 4 is substantially wrapped by the water-repellent inner sheet 7 and the back sheet 3 by arranging the back sheet 3 on the non-skin contact surface side, and the absorbed body fluid is exposed to the outside. Leakage is prevented.
Moreover, as shown in FIG. 4, the inner sheet 7 is bonded to the absorbent body 4 and the top sheet 2 by an adhesive on both sides in the longitudinal direction on the back side of the napkin 1. In addition, instead of using the water-repellent inner sheet 7, a flap portion can be formed by extending and joining the back sheet 3 and the top sheet 2 from both side edges of the absorbent body to the outside in the width direction, thereby enhancing the leakage prevention effect. .
本実施形態のナプキン１について、更にまた説明すると、表面シート２の長手方向の両側部それぞれは、吸収体４の両側縁から延出し、内部シート７と裏面シート３との間に巻き下げられ、裏面シート３と接合されている。また、表面シート２における隆起部４０の上に位置する部分は、排泄された体液の透過性を良好にする観点から、複数の孔が設けられていることが好ましい。
表面シート２及び裏面シート３の長手方向の両端部それぞれは、吸収体４の長手方向の両端縁から延出し、ヒートシール等の公知の接合法により接合されている。
また、裏面シート３の外面には、ナプキン１を着用者のショーツ等に固定するためのズレ止め材が塗布されている。該ズレ止め材は、剥離紙によって被覆されており、使用時まで保護されている。
The napkin 1 of the present embodiment will be further described. Both side portions in the longitudinal direction of the top sheet 2 extend from both side edges of the absorbent body 4, and are wound down between the inner sheet 7 and the back sheet 3, The back sheet 3 is joined. Moreover, it is preferable that the part located on the protruding part 40 in the surface sheet 2 is provided with the some hole from a viewpoint of making the permeability | transmittance of the excreted bodily fluid favorable.
Both end portions in the longitudinal direction of the top sheet 2 and the back sheet 3 extend from both end edges in the longitudinal direction of the absorber 4 and are joined by a known joining method such as heat sealing.
Moreover, the slip prevention material for fixing the napkin 1 to a wearer's shorts etc. is apply | coated to the outer surface of the back surface sheet 3. The slip stopper is covered with a release paper and is protected until use.
本実施形態のナプキン１において、排泄部対向部Ｂにおける隆起部４０の前記部分４０Ｂの長手方向に沿った長さＬ１は、排泄部を長手方向に覆うように当接する観点から、５０〜１００ｍｍが好ましく、６０〜８０ｍｍであることがより好ましい。また、前方部Ａ及び後方部Ｃにおける隆起部４０の前記部分４０Ａ及び４０Ｃそれぞれの長手方向に沿った長さＬ２は、２０〜７０ｍｍが好ましく、３０〜６０ｍｍであることがより好ましい。長手方向に沿った長さは、長手方向に平行な方向に沿った長さであり、湾曲した曲線に沿った長さではない。
排泄部対向部Ｂにおける隆起部４０の前記部分４０Ｂの幅Ｗ１（長手方向において幅方向に沿った最大幅）は、排泄部を幅方向に覆うように当接する観点から、２０〜７０ｍｍが好ましく、３０〜６０ｍｍであることがより好ましい。また、前方部Ａ及び後方部Ｃにおける隆起部４０の前記部分４０Ａ及び４０Ｃの幅Ｗ２（長手方向において幅方向に沿った最大幅）それぞれは、１０〜６０ｍｍが好ましく、２０〜５０ｍｍであることがより好ましい。幅方向に沿った幅とは、幅方向に平行な方向に沿った幅である（以下同じ）。
隆起部４０の２つの幅方向内側に括れた部分４０Ｄ及び４０Ｅそれぞれの幅Ｗ３（長手方向において幅方向に沿った最小幅）は、１０〜６０ｍｍが好ましく、２０〜５０ｍｍあることがより好ましい。
排泄部対向部Ｂにおける一対の溝５，５それぞれの前記部分５Ｂの幅方向最外側の部分と前記溝６との間を、幅方向に沿って測った長さＴ１（図２参照）は、２〜１５ｍｍが好ましく、５〜１０ｍｍであることがより好ましい。
前方部Ａ及び後方部Ｃにおける溝５の前記部分５Ａ及び５Ｃそれぞれの幅方向最外側の部分と前記溝６との間を、幅方向に沿って測った長さＴ２（図２参照）は、２〜２０ｍｍが好ましく、５〜１５ｍｍであることがより好ましい。
In the napkin 1 of the present embodiment, the length L1 along the longitudinal direction of the portion 40B of the raised portion 40 in the excretory part facing part B is 50 to 100 mm from the viewpoint of contacting the excretion part in the longitudinal direction. Preferably, it is 60-80 mm. Moreover, 20-70 mm is preferable and, as for the length L2 along the longitudinal direction of each said part 40A and 40C of the protruding part 40 in the front part A and the rear part C, it is more preferable that it is 30-60 mm. The length along the longitudinal direction is a length along a direction parallel to the longitudinal direction, and is not a length along a curved curve.
The width W1 (the maximum width along the width direction in the longitudinal direction) of the raised portion 40 in the excretory part facing part B is preferably 20 to 70 mm from the viewpoint of contacting the excretion part in the width direction, More preferably, it is 30-60 mm. Further, the width W2 (maximum width along the width direction in the longitudinal direction) of the portions 40A and 40C of the raised portion 40 in the front part A and the rear part C is preferably 10 to 60 mm, and preferably 20 to 50 mm. More preferred. The width along the width direction is a width along the direction parallel to the width direction (hereinafter the same).
10-60 mm is preferable and, as for width W3 (minimum width along the width direction in a longitudinal direction) of each of the parts 40D and 40E confined to the two width direction inner side of the protruding part 40, it is more preferable that it is 20-50 mm.
A length T1 (see FIG. 2) measured along the width direction between the outermost portion in the width direction of the portion 5B of each of the pair of grooves 5 and 5 in the excretory portion facing portion B and the groove 6 is: 2-15 mm is preferable and it is more preferable that it is 5-10 mm.
A length T2 (see FIG. 2) measured along the width direction between the width direction outermost portion of each of the portions 5A and 5C of the groove 5 in the front portion A and the rear portion C and the groove 6 is: 2-20 mm is preferable and it is more preferable that it is 5-15 mm.
本実施形態のナプキン１おいて、吸収体４のパルプ材料としては、従来の吸収性物品等において用いられている各種のパルプ材料を用いることができるが、特に針葉樹パルプ、化学処理された合成パルプ、セルローストウのような長繊維が好ましい。また、吸収体４の形成材料として、パルプ材料の他に、高分子吸収ポリマー、ポリエステルやポリプロピレン製の合成繊維、熱融着性繊維、レーヨンを用いることもできる。吸収体４の形成材料として、パルプ材料及びその他の前記材料を混合して用いることも好ましい。
吸収体４の坪量は、前述した通りであるが、吸収体が肌側に良好に隆起すると共に吸収体の柔軟性を確保する観点から、200〜800ｇ／ｍ2であることが好ましく、300〜600ｇ／ｍ2であることが更に好ましい。
内部シート７は、従来の吸収性物品等において用いられている各種の撥水性を有するシート材料を用いることができるが、特にポリエチレンシート、ポリエチレンラミネート紙、ＳＭＳ不織布が好ましい。
表面シート２及び裏面シート３の形成材料としては、従来の吸収性物品等において用いられている各種のシート材料を特に制限なく用いることができる。
In the napkin 1 of the present embodiment, various pulp materials used in conventional absorbent articles and the like can be used as the pulp material of the absorbent body 4, and in particular, softwood pulp, chemically treated synthetic pulp Long fibers such as cellulose tow are preferred. Further, as a material for forming the absorbent body 4, in addition to a pulp material, a polymer-absorbing polymer, a synthetic fiber made of polyester or polypropylene, a heat-fusible fiber, or rayon can also be used. As a material for forming the absorbent body 4, it is also preferable to use a mixture of pulp material and other materials.
The basis weight of the absorbent body 4 is as described above, but is preferably 200 to 800 g / m 2 from the viewpoint that the absorbent body rises well on the skin side and ensures the flexibility of the absorbent body. More preferably, it is ˜600 g / m 2 .
As the inner sheet 7, various water-repellent sheet materials used in conventional absorbent articles and the like can be used, and a polyethylene sheet, polyethylene laminated paper, and SMS nonwoven fabric are particularly preferable.
As a material for forming the top sheet 2 and the back sheet 3, various sheet materials used in conventional absorbent articles and the like can be used without particular limitation.
上述した本実施形態のナプキン１によれば、吸収層１０に一対の溝５，５を設けることで、着用時に吸収層１０を肌側へ向って隆起させることができる。このような構成のナプキン１は、容易に製造される。
また、ナプキン１の吸収体４の坪量が大きく且つ一対の溝５，５の前後端部が閉じて繋がっているため、隆起部４０がより隆起し易い構成となっている。
また、吸収体４は、その長手方向の両側部及び裏面側において、内部シート８によって一体的に包まれているため、該隆起部４０が更に隆起し易い構成となっている。
また、一対の幅方向内側に凸に湾曲している溝６，６が設けられているため、ナプキン１が局部的に幅方向からの圧縮力を受けた場合、該局部に加わった前記圧縮力を前記溝６の長手方向全体に分散し、幅方向外側に凸に湾曲している溝５へ伝えることにより、安定的に隆起部４０が得られる。
このように、一対の前記溝５，５に加えて、該溝それぞれの幅方向外側に前記溝６が設けられているため、ナプキン１が受ける幅方向内側への圧縮力が左右均等でなくても、隆起部４０は良好に肌側へ向って隆起する。
更に、隆起部４０は、一対の溝５，５により周囲が囲まれているため、その面形状の形状安定性が高められており、着用中において、その隆起した形状が安定的に維持される。
ナプキン１が展開された際に折り線Ｓ１，Ｓ２跡に形成されるシワは、着用時には隆起部４０の隆起によって実質的に消滅するため、ナプキン１の表面に排泄された体液が該シワを伝わって、幅方向へ漏れる恐れはない。
According to the napkin 1 of this embodiment mentioned above, by providing a pair of groove | channels 5 and 5 in the absorption layer 10, the absorption layer 10 can be raised toward the skin side at the time of wear. The napkin 1 having such a configuration is easily manufactured.
In addition, since the basis weight of the absorbent body 4 of the napkin 1 is large and the front and rear ends of the pair of grooves 5 and 5 are closed and connected, the raised portion 40 is more easily raised.
Moreover, since the absorber 4 is integrally wrapped by the inner sheet 8 on both side portions and the back surface side in the longitudinal direction, the raised portion 40 is configured to be more easily raised.
Moreover, since the groove | channels 6 and 6 which are curving convexly are provided in a pair of width direction inside, when the napkin 1 receives the compressive force from the width direction locally, the said compressive force applied to this local part Is distributed over the entire longitudinal direction of the groove 6 and transmitted to the groove 5 that is convexly curved outward in the width direction, whereby the raised portion 40 is stably obtained.
Thus, in addition to the pair of grooves 5 and 5, the groove 6 is provided on the outer side in the width direction of each of the grooves. However, the raised portion 40 is well raised toward the skin side.
Furthermore, since the periphery of the raised portion 40 is surrounded by the pair of grooves 5 and 5, the shape stability of the surface shape is enhanced, and the raised shape is stably maintained during wearing. .
The wrinkles formed on the fold lines S1 and S2 traces when the napkin 1 is deployed are substantially disappeared by the bulging of the raised portions 40 when worn, so that the body fluid excreted on the surface of the napkin 1 is transmitted through the wrinkles There is no risk of leaking in the width direction.
本発明の吸収性物品は、前述した実施形態に制限されることなく、本発明の趣旨を逸脱しない限り適宜変更が可能である。
例えば、本実施形態における一対の溝５，５それぞれは、前記長手方向中央領域から前方部Ａ及び後方部Ｃに延びていたが、どちらか一方のみに延びていても良い。
また、一対の溝５，５それぞれは、前記長手方向中央領域の前後両方において幅方向内側に括れた部分を有していたが、少なくとも一方において幅方向内側に括れた部分を有していれば良い。この場合、該括れた部分を有していない長手方向の端部において、本物品が幅方向に跨ぐような折り線で折り畳まれていることも好ましい。
また、一対の溝５，５それぞれは、本実施形態においてヒートシール加工により形成されていたが、超音波シール加工等の他の圧着手段を用いて形成しても良い。
更に、吸収体４は、本実施形態においてパルプのみから形成されていたが、粒状又は層状の高吸収性ポリマーが含まれていても良い。
本発明の吸収性物品は、生理用ナプキンであっても良いが、失禁パッド等であっても良い。
The absorbent article of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
For example, each of the pair of grooves 5 and 5 in the present embodiment extends from the central region in the longitudinal direction to the front part A and the rear part C, but may extend to only one of them.
Further, each of the pair of grooves 5 and 5 has a portion confined in the width direction inside both the front and rear of the central region in the longitudinal direction, but at least one of the grooves 5 and 5 has a portion constricted in the width direction inside. good. In this case, it is also preferable that the end of the longitudinal direction not having the constricted portion is folded at a fold line so as to straddle the width direction.
In addition, each of the pair of grooves 5 and 5 is formed by heat sealing in the present embodiment, but may be formed by using other pressure bonding means such as ultrasonic sealing.
Furthermore, although the absorber 4 was formed only from the pulp in this embodiment, the granular or layered superabsorbent polymer may be contained.
The absorbent article of the present invention may be a sanitary napkin or an incontinence pad.
１ 生理用ナプキン（吸収性物品）
１０ 吸収層
１１ 防漏層
２ 表面シート
３ 裏面シート
４ 吸収体
４０ 隆起部
５ 溝
６ 幅方向外側に凹に湾曲している溝
７ 内部シート
８ タブテープ
Ａ 前方部
Ｂ 排泄部対向部
Ｃ 後方部
Ｓ 折り線
1 Sanitary napkin (absorbent article)
DESCRIPTION OF SYMBOLS 10 Absorbing layer 11 Leak-proofing layer 2 Top sheet 3 Back sheet 4 Absorber 40 Raised part 5 Groove 6 Groove which is concavely curved outward in the width direction 7 Internal sheet 8 Tab tape A Front part B Excretion part opposing part C Rear part S Folding line
Claims (5)
前記吸収層における肌当接面側の長手方向両側部に一対の溝が設けられており、一対の該溝は、前記吸収層の長手方向に延びる中心線に対して略線対称な形状を有しており、一対の該溝それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されており、さらに、一対の前記溝それぞれは、前記長手方向中央領域から前方部または／および後方部に延びており、前記長手方向中央領域の前後の少なくとも一方において幅方向内側に括れた部分を有しており、該括れた部分において幅方向に跨ぐような折り線で折り畳まれている吸収性物品。 An absorbent article comprising an absorbent layer and a leak-proof layer,
A pair of grooves are provided on both side portions of the absorbent layer on the skin contact surface side in the longitudinal direction, and the pair of grooves have a substantially line symmetrical shape with respect to a center line extending in the longitudinal direction of the absorbent layer. Each of the pair of grooves is formed to be convexly curved outward in the width direction in the central region in the longitudinal direction, and each of the pair of grooves is a front portion or / or from the central region in the longitudinal direction. And at least one of the front and rear sides of the central region in the longitudinal direction has a portion that is constricted inward in the width direction, and the constricted portion is folded at a folding line that straddles the width direction. Absorbent article.
The absorbent article according to claim 4, wherein the pair of grooves have a shape that is pointed toward the front and a shape that is pointed toward the rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005149297A JP4484765B2 (en) | 2005-05-23 | 2005-05-23 | Absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005149297A JP4484765B2 (en) | 2005-05-23 | 2005-05-23 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006325639A true JP2006325639A (en) | 2006-12-07 |
| JP4484765B2 JP4484765B2 (en) | 2010-06-16 |
Family
ID=37547990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005149297A Expired - Fee Related JP4484765B2 (en) | 2005-05-23 | 2005-05-23 | Absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4484765B2 (en) |
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