JP2706490B2 - Diaper - Google Patents
DiaperInfo
- Publication number
- JP2706490B2 JP2706490B2 JP63265745A JP26574588A JP2706490B2 JP 2706490 B2 JP2706490 B2 JP 2706490B2 JP 63265745 A JP63265745 A JP 63265745A JP 26574588 A JP26574588 A JP 26574588A JP 2706490 B2 JP2706490 B2 JP 2706490B2
- Authority
- JP
- Japan
- Prior art keywords
- longitudinal direction
- absorbent layer
- thickness
- diaper
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、つかいすておむつに関するもので、特に尿
モレ防止とコンパクト性に優れたつかいすておむつに関
するものである。Description: TECHNICAL FIELD The present invention relates to a diaper for a diaper, and more particularly to a diaper that is excellent in preventing urine leakage and compact.
従来、つかいすておむつは周知の通り不織布等の液透
過性の表面シートとポリエチレンなどのフィルムからな
る液不透過性の裏面シートとその間に挿入されてなるパ
ルプ等からなる吸収層からなっている。Conventionally, a diaper has a liquid-permeable top sheet such as a non-woven fabric, a liquid-impermeable back sheet made of a film such as polyethylene, and an absorbent layer made of pulp or the like inserted between them, as is well known. .
上記のような構成を有するつかいすておむつにおい
て、尿及び便モレを防ぐためには、排尿があった時には
中央部に集中して排尿されるので、排尿ポイント付近、
即ち吸収層の長手方向の中央部に多くのパルプを配置す
るのが効率的である。In the diaper having a configuration as described above, in order to prevent urine and fecal leakage, when urination occurs, the urine is concentrated in the central part, so that the urination point is near,
That is, it is efficient to arrange a large amount of pulp at the center in the longitudinal direction of the absorbent layer.
吸収層の長手方向の中央部に多くのパルプを配置する
方法としては、特開昭58−214501号公報に、パルプを積
層しその長手方向の両端部を上面に折り返して第１折り
返し部を形成し、再度この両端の第１折り返し部が中央
で接するように折り返して吸収層の長手方向の中央部に
パルプを集中させることが提案されている。併しこの方
法では、中央部の厚みはパルプ積層厚みの３倍となるの
みであって、中央部の厚み、即ち中央部へのパルプの集
中の程度を自由にコントロールできないという欠点を有
している。また、パルプを積層した上面にさらにパルプ
を積層させるという方法もあるが、この方法で形成した
吸収層は、その上から高吸収性ポリマーを入れた場合、
使用時吸収層からポリマーがはみ出し表面シートを通し
て使用者の肌に触れ、不快感を与えるので好ましくな
い。As a method of arranging a large amount of pulp in the central portion in the longitudinal direction of the absorbent layer, Japanese Patent Application Laid-Open No. Sho 58-214501 discloses a method in which pulp is laminated, and both ends in the longitudinal direction are folded on the upper surface to form a first folded portion. It has been proposed that the first folds at both ends are folded again so that they contact each other at the center, and the pulp is concentrated at the center in the longitudinal direction of the absorbent layer. However, this method has a disadvantage that the thickness of the central portion is only three times the thickness of the pulp laminate, and the thickness of the central portion, that is, the degree of pulp concentration in the central portion, cannot be freely controlled. I have. In addition, there is also a method of further laminating pulp on the upper surface of the laminated pulp, but the absorbent layer formed by this method, when a highly absorbent polymer is put on it,
When used, the polymer protrudes from the absorbent layer and touches the skin of the user through the topsheet, giving uncomfortable feeling.
本発明者らは、このような従来のつかいすておむつの
欠点を改良し、尿モレ防止とコンパクト性に優れたつか
いすておむつを見出すべく鋭意検討を重ねた結果、本発
明を完成するに至った。The present inventors have improved the disadvantages of such conventional diaper diapers, and have conducted intensive studies to find a diaper having excellent urine leakage prevention and compactness.As a result, the present invention was completed. Reached.
即ち本発明は、液透過性の表面シート、液不透過性の
裏面シート及びこれら両シートの間に設けられた吸収層
を有するつかいすておむつにおいて、吸収層は実質的に
長方形のフラッフパルプを、その長手方向両端部がほぼ
中央で接するように内側に折り返されてなり、折り返さ
れる前のフラッフパルプは長手方向の両端部の夫々の厚
みが長手方向の中央部の厚みより厚く形成され、該中央
部の巾方向の長さ（ｂ）と該両端部の夫々の巾方向の長
さ（ａ）の比がb/a＞２であることを特徴とするつかい
すておむつを提供するものである。That is, the present invention relates to a diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet and an absorbent layer provided between these two sheets, wherein the absorbent layer is substantially rectangular fluff pulp. The fluff pulp is folded back inward so that both ends in the longitudinal direction are almost in contact with each other at the center, and the fluff pulp before being folded is formed such that the thickness of each end in the longitudinal direction is greater than the thickness of the central portion in the longitudinal direction. The ratio of the width direction length (b) of the center portion to the width direction length (a) of each of the both end portions is b / a> 2. is there.
本発明はフラッフパルプを積層して吸収層を形成する
やり方に特徴を有するので、先ずこの点について説明す
る。第３図は吸収層２の長手方向中間付近の横断面図
で、（１）は折り返し前の状態、（２）は折り返し後の
状態、（３）はレッグスポットを設けた状態を示すもの
である。本発明に於いては吸収層２を形成するにあた
り、フラッフパルプを積層する際に第３図（１）のよう
に長手方向の中央部と端部に段差をつけ、第３図（２）
のようにその両端部を互いに接するように折り返すこと
により、長手方向の中央部の厚みを厚くする。第３図
（１）に於いて中央部の巾はｂ、両端部の夫々の巾はａ
で指示したがb/aは２より大きくすることが必要であ
る。好ましくは３〜10である。２以下であると長手方向
の相対する両端部を互いに接するように折り返した時
に、長手方向の中央部のみの厚さが厚くならない。Since the present invention is characterized by the manner in which fluff pulp is laminated to form an absorbent layer, this point will be described first. FIG. 3 is a cross-sectional view of the absorption layer 2 near the center in the longitudinal direction, where (1) shows a state before folding, (2) shows a state after folding, and (3) shows a state where a leg spot is provided. is there. In forming the absorbent layer 2 in the present invention, when fluff pulp is laminated, a step is formed at the center and the end in the longitudinal direction as shown in FIG. 3 (1), and FIG. 3 (2)
By folding the both ends so as to be in contact with each other, the thickness of the central portion in the longitudinal direction is increased. In FIG. 3A, the width at the center is b, and the width at each end is a.
However, it is necessary that b / a be larger than 2. Preferably it is 3-10. When it is less than 2, when the opposite ends in the longitudinal direction are folded back so as to be in contact with each other, the thickness of only the central portion in the longitudinal direction does not increase.
段差をつける方法としては、フラッフパルプをフラッ
トに積層した時に長手方向の中央部をかきとる方法、あ
るいはフラットに積層した上面にさらに長手方向の両端
部のみに所要巾のフラッフパルプを積層する方法等が考
えられるが、方法についてはこの限りでない。中央部の
厚みに対する両端部の厚みの比は適当に選定されるが、
好ましくは1.5〜５である。Steps can be created by scraping off the central part in the longitudinal direction when fluff pulp is laminated flat, or by laminating fluff pulp of the required width only on both ends in the longitudinal direction on the flat laminated upper surface. However, the method is not limited to this. The ratio of the thickness at both ends to the thickness at the center is appropriately selected,
Preferably it is 1.5-5.
本発明に於いては、折り返される前のフラッフパルプ
の表面に高吸収性ポリマーが散布されるのが好ましい。
吸収層に使用される高吸収性ポリマー粒子としては、デ
ンプン系、セルロース系、合成ポリマー系が挙げられ、
例えば、デンプン−アクリル酸（塩）グラフト共重合
体、デンプン−アクリロニトリル共重合体のケン化物、
ナトリウムカルボキシメチルセルロースの架橋物、アク
リル酸（塩）重合体などが適当である。かかる高吸収性
ポリマー粒子は、自重の20倍以上の液吸収保持性を有
し、且つ水に不溶で水を吸収すると膨潤しゲル化する性
質を有するものである。In the present invention, it is preferable that the superabsorbent polymer is sprayed on the surface of the fluff pulp before being folded.
Examples of the superabsorbent polymer particles used in the absorbent layer include starch, cellulose, and synthetic polymer.
For example, starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer,
Crosslinked products of sodium carboxymethylcellulose, acrylic acid (salt) polymers and the like are suitable. Such superabsorbent polymer particles have a liquid absorption retention of 20 times or more of their own weight, and have a property of being insoluble in water and swelling and gelling when absorbing water.
本発明によれば、上記のように吸収層の長手方向の中
央部の厚みを大きくしてパルプを集中させることによ
り、尿及び便モレ防止性能は向上するが、本発明の実施
にあたっては、さらに吸収層の上面の表面シートの長手
方向中間部付近２ケ所で第３図（３）に示す如く吸収層
の長手方向両端部を折り返して一部接着させポケット構
造を形成すると、これにより吸収層に排泄物を保持し、
表面シートからの吸収を促す機能を増加させ得る。さら
に、この接着部分から吸収層端部までの部分が第３図
（３）の如く防漏壁として機能するので、股間部の尿・
便モレ防止に極めて有効である。According to the present invention, by increasing the thickness of the central portion in the longitudinal direction of the absorbent layer and concentrating the pulp as described above, urine and stool leakage prevention performance is improved, but in the practice of the present invention, As shown in FIG. 3 (3), when the two ends in the longitudinal direction of the absorbent layer are folded back and partially adhered to form a pocket structure at two places near the longitudinally intermediate portion of the top sheet on the upper surface of the absorbent layer, thereby forming a pocket structure. Holding the excrement,
The function of promoting absorption from the topsheet can be increased. Further, the portion from the adhesive portion to the end of the absorbent layer functions as a leak-proof wall as shown in FIG.
It is extremely effective in preventing stool leakage.
以下、図面により本発明の実施態様を詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明につかいすておむつの一実施例を示す
斜視打、第２図はそのＡ−Ａ′線断面図である。FIG. 1 is a perspective view showing an embodiment of a diaper used in the present invention, and FIG. 2 is a sectional view taken along line AA 'of FIG.
本発明のつかいすておむつは、液透過性の表面シート
１と液不透過性の裏面シート３と吸収層２からなり、そ
の吸収層の長手方向の中央部の厚みが端部の厚みに比べ
て厚い。また、吸収層２の上面の表面シートは長手方向
中間付近の２ケ所で一部接着されている。この接着部分
５をレッグスポットと呼ぶ。The diaper of the present invention comprises a liquid-permeable top sheet 1, a liquid-impermeable back sheet 3 and an absorbing layer 2, and the thickness of the absorbing layer at the center in the longitudinal direction is smaller than the thickness at the end. Thick. The top sheet on the upper surface of the absorbent layer 2 is partially bonded at two places near the center in the longitudinal direction. This bonding portion 5 is called a leg spot.
第１図及び第２図に示すように、本発明のつかいすて
おむつは長手方向の両側端部中間付近に２点で接着して
レッグスポット５を設けるのが好ましいが、２点の間隔
は60mm以上、好ましくは80〜130mm、吸収層の端部折り
上げ長さは10〜30mm、レッグスポットの長手方向の長さ
は10〜50mmが好ましい。As shown in FIG. 1 and FIG. 2, it is preferable to provide the leg spot 5 by bonding the diaper of the present invention at two points near the middle of both ends in the longitudinal direction. It is preferably 60 mm or more, preferably 80 to 130 mm, the end folded length of the absorbent layer is 10 to 30 mm, and the length of the leg spot in the longitudinal direction is preferably 10 to 50 mm.
以下、実施例により本発明を更に詳細に説明するが、
本発明はこれら実施例に限定されるものではない。Hereinafter, the present invention will be described in more detail by examples,
The present invention is not limited to these examples.
参考例１〜３は吸収層２のつくり方の例を示すもので
ある。Reference Examples 1 to 3 show examples of how to form the absorption layer 2.
参考例 １ 坪量200g/m2のパルプを長手方向両端部50（巾）×410
（長さ）×９（厚み）mm、長手方向中央部200（巾）×4
10（長さ）×３（厚み）mmに積層し、中央部表面に高吸
収性ポリマー5g（ポリアクリル酸ソーダ架橋物）を150
（巾）×410（長さ）mmの面積に層状に散布し、次いで
両端部を内側へ中央部上に折り返し、互いに接するよう
に重ね吸収層を形成した。The pulp of Example 1 basis weight 200 g / m 2 both longitudinal ends 50 (width) × 410
(Length) x 9 (thickness) mm, central part in the longitudinal direction 200 (width) x 4
Laminate 10 (length) x 3 (thickness) mm, and apply 5 g of superabsorbent polymer (crosslinked sodium polyacrylate) to the center surface
It was sprayed in layers over an area of (width) × 410 (length) mm, and then both ends were folded inward on the center to form an overlapping absorbent layer so as to be in contact with each other.
参考例 ２ 坪量200g/m2のパルプを両端部25（巾）×410（長さ）
×５（厚み）mm、中央部250（巾）×410（長さ）×３
（厚み）mmに積層し、中央部表面に高吸収性ポリマー5g
（ポリアクリル酸ソーダ架橋物）を150（巾）×410（長
さ）mmの面積に層状に散布し、次いで両端部を内側へ中
央部上に折り返し、互いに接するように重ね吸収層を形
成した。Reference example 2 Pulp with a basis weight of 200 g / m 2 is 25 (width) x 410 (length) at both ends
× 5 (thickness) mm, central part 250 (width) × 410 (length) × 3
(Thickness) Laminated to mm, super absorbent polymer 5g on the center part surface
(Crosslinked sodium polyacrylate) was sprayed in layers over an area of 150 (width) x 410 (length) mm, and then both end portions were folded inward on the central portion to form an overlapping absorbent layer so as to be in contact with each other. .
参考例 ３ 坪量200g/m2のパルプを300（巾）×410（長さ）×５
（厚み）mmに積層し、中央部表面に高吸収性ポリマー5g
（ポリアクリル酸ソーダ架橋物）を150（巾）×410（長
さ）mmの面積に層状に散布し、次いで両端部を内側へ中
央部上に折り返し、互いに接するように重ね吸収層を形
成した。Reference example 3 Pulp with a basis weight of 200 g / m 2 is 300 (width) x 410 (length) x 5
(Thickness) Laminated to mm, super absorbent polymer 5g on the center part surface
(Crosslinked sodium polyacrylate) was sprayed in layers over an area of 150 (width) x 410 (length) mm, and then both end portions were folded inward on the central portion to form an overlapping absorbent layer so as to be in contact with each other. .
第２図に示す如く、実施例１、２及び比較例１につい
ては330（巾）×450（長さ）mmのポリエチレンシート３
の中央に150（巾）×410（長さ）mmの上記参考例１、２
及び３で得た夫々の吸収層２を置いた。この吸収層２の
両側端部より30mm外側に弾性伸縮性部材４を置き、ポリ
エチレンシートと同一大きさの不織布で覆い、吸収層端
部から20mmのところより折り曲げ、折り曲げた位置より
5mmの地点２ケ所で接着し（レッグスポット）、おむつ
を作製した。比較例２については、参考例３の吸収層２
を用いて上記と同様に作製したが、レッグスポットをつ
けなかった。As shown in FIG. 2, in Examples 1 and 2 and Comparative Example 1, a polyethylene sheet 3 of 330 (width) × 450 (length) mm was used.
Reference Examples 1 and 2 with 150 (width) x 410 (length) mm in the center of
And the respective absorbent layers 2 obtained in 3 were placed. The elastic elastic member 4 is placed 30 mm outside of both side ends of the absorbent layer 2, covered with a nonwoven fabric of the same size as the polyethylene sheet, and bent at a position 20 mm from the end of the absorbent layer.
Two 5 mm points were bonded (leg spots) to produce diapers. For Comparative Example 2, the absorption layer 2 of Reference Example 3 was used.
Was prepared in the same manner as above, but without a leg spot.
以上の如くしてつくったおむつを体重10kgの乳幼児を
もとに設計、製作したベビーモデルに装着し、モレ防止
効果の評価を行った。即ち、生理食塩水（0.9％）を50g
ずつ10分毎に注入し、うつぶせ寝の姿勢で腹からもれる
までに吸収した吸収量（前モレ値）及び横向き寝の姿勢
で股からもれるまでに吸収した吸収量（股モレ値）を求
めた。The diaper made as described above was attached to a baby model designed and manufactured based on an infant weighing 10 kg, and the effect of preventing leakage was evaluated. That is, 50 g of physiological saline (0.9%)
Inject every 10 minutes, and determine the amount of absorption before leaking from the stomach in the prone position (previous leak value) and the amount of absorption before leaking from the crotch in the sideways sleeping position (return crotch value) Was.
その結果を第１表に示す。 Table 1 shows the results.
第１表に示す如く、本発明のおむつが吸収層の中央部
の厚みの効果によりモレ防止効果に優れ、更にレッグス
ポットとの組み合わせにより股モレ防止効果のあること
が確認された。 As shown in Table 1, it was confirmed that the diaper of the present invention was excellent in the effect of preventing leakage due to the effect of the thickness of the central portion of the absorbent layer, and was also effective in preventing crotch leakage when combined with the leg spot.
第１図は本発明のつかいすておむつの一実施例を示す斜
視図、第２図はそのＡ−Ａ′線断面図、第３図（１）〜
（３）は吸収層のつくり方を示す横断面図である。 １……表面シート ２……吸収層 ３……裏面シート ４……弾性伸縮部材 ５……レッグスポット ６……テープ ７……高吸収性ポリマーFIG. 1 is a perspective view showing an embodiment of a diaper of the present invention, FIG. 2 is a sectional view taken along the line AA 'of FIG. 3, and FIGS.
(3) is a cross-sectional view showing how to make an absorption layer. DESCRIPTION OF SYMBOLS 1 ... Top sheet 2 ... Absorption layer 3 ... Back sheet 4 ... Elastic expansion / contraction member 5 ... Leg spot 6 ... Tape 7 ... High-absorbency polymer
Claims (2)
シート及びこれら両シートの間に設けられた吸収層を有
するつかいすておむつにおいて、吸収層は実質的に長方
形のフラッフパルプを、その長手方向両端部がほぼ中央
で接するように内側に折り返されてなり、折り返される
前のフラッフパルプは長手方向の両端部の夫々の厚みが
長手方向の中央部の厚みより厚く形成され、該中央部の
巾方向の長さ（ｂ）と該両端部の夫々の巾方向の長さ
（ａ）の比がb/a＞２であることを特徴とするつかいす
ておむつ。In a diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet and an absorbent layer provided between the two sheets, the absorbent layer is formed of substantially rectangular fluff pulp. The fluff pulp is folded back inward so that both ends in the longitudinal direction are almost in contact with each other at the center, and the fluff pulp before being folded is formed such that the thickness of each end in the longitudinal direction is greater than the thickness of the central portion in the longitudinal direction. A ratio of the width direction length (b) of the center portion to the width direction length (a) of each of both end portions is b / a> 2.
高吸収性ポリマーが散布されてなる請求項１記載のつか
いすておむつ。2. The nursery diaper according to claim 1, wherein the superabsorbent polymer is sprayed on the surface of the fluff pulp before being folded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63265745A JP2706490B2 (en) | 1988-10-21 | 1988-10-21 | Diaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63265745A JP2706490B2 (en) | 1988-10-21 | 1988-10-21 | Diaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02111361A JPH02111361A (en) | 1990-04-24 |
| JP2706490B2 true JP2706490B2 (en) | 1998-01-28 |
Family
ID=17421410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63265745A Expired - Fee Related JP2706490B2 (en) | 1988-10-21 | 1988-10-21 | Diaper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2706490B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2559053Y2 (en) * | 1992-10-15 | 1998-01-14 | ユニ・チャーム株式会社 | Disposable diapers |
-
1988
- 1988-10-21 JP JP63265745A patent/JP2706490B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02111361A (en) | 1990-04-24 |
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