JPH0380023B2 - - Google Patents
Info
- Publication number
- JPH0380023B2 JPH0380023B2 JP60185838A JP18583885A JPH0380023B2 JP H0380023 B2 JPH0380023 B2 JP H0380023B2 JP 60185838 A JP60185838 A JP 60185838A JP 18583885 A JP18583885 A JP 18583885A JP H0380023 B2 JPH0380023 B2 JP H0380023B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- absorbing
- sheet
- absorbing layer
- layer
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 229920000247 superabsorbent polymer Polymers 0.000 claims description 21
- 239000002861 polymer material Substances 0.000 claims description 20
- 239000002250 absorbent Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 230000002745 absorbent Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 description 24
- 210000002700 urine Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 229920002125 Sokalan® Polymers 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 239000004584 polyacrylic acid Substances 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Description
〔産業上の利用分野〕
本発明は使いすておむつに関するものである。
更に詳しくは吸水性能の優れた使いすておむつに
関するものである。
〔発明の背景〕
使いすておむつは周知のとおりポリエステル、
ポリプロピレン或いはレーヨンなどの不織布から
成る液透過性の表面シートとポリエチレン、ポリ
プロピレンなどのフイルムから成る液不透過性の
防水シートとその間に挿入された綿状パルプ、吸
水紙などからなる吸水層から構成されている。
また、最近吸水層の吸水能を向上させ、更には
使いすておむつ全体を出来るだけ薄く、且つ、コ
ンパクトにするために粉末状の高吸水性高分子物
質が用いられるようになつてきている。
高吸水性高分子物質としては、ポリアクリル酸
系、デンプン系、カルボキシメチルセルロース系
など各種のものが市販されており、いずれも使用
可能であるが、従来市販されている使いすておむ
つにおいては一種類の高吸水性高分子物質を綿状
パルプの中に均一に分散させて用いたり、あるい
は綿状パルプと綿状パルプの間に層状に散布して
用いたり、吸水紙の間に入れたものを吸水層の中
間に入れて用いたりされていた。
しかしながら、このような用い方では高価な高
吸水性高分子物質を多量に用いる割には吸水性能
も十分発揮されず、価格が高くなるなどの問題が
あつた。これの改良法として、液透過性の表面シ
ートと液不透過性の裏面シートの間に上層を形成
する第１の吸水層、下層を形成する第２の吸水層
において、第１の吸水層で用いる高吸水性高分子
物質の吸水量が第２の吸水層で用いる高吸水性高
分子物質の吸水量よりも小さいものを用うること
が有効であることはすでに本発明者らが提案した
通りである（特開昭61−289101号公報）。
〔発明の目的〕
本発明は、従来の使いすておむつの前記問題点
を解決し、さらに吸水性の優れた安価な使いすて
おむつを提供することを目的とする。
〔発明を解決するための手段〕
本発明は液透過性の表面シートと液不透過性の
裏面シートの間に、吸水シートをはさんで上層を
形成する第１の吸水層と下層を形成する第２の吸
水層を有する使いすておむつにおいて、該吸水シ
ートの両面に高吸水性高分子物質が層状に設けら
れ、且つ吸水シートの第１の吸水層側の高吸水性
高分子物質の吸水能が、第２の吸水層側の高吸水
性高分子物質の吸水能よりも小さいものを用いた
ことを特徴とする使いすておむつである。
本発明で使用する高吸水性高分子物質として
は、公知のポリアクリル酸系、デンプン系、カル
ボキシメチルセルロース系など全ての高吸水性高
分子物質が使用可能である。
吸水シートの第２の吸水層側で使用する高吸水
性高分子物質としては、人工尿で測定して吸水量
が30ｇ／ｇ以上のもの、望ましくは50ｇ／ｇ以上
のものを使用するのが好ましく、また吸水シート
の第１の吸水層側に用いる高吸水性高分子物質と
しては吸水量50ｇ／ｇ以下、望ましくは40ｇ／ｇ
以下のものを使用するのが好ましい。
吸水シートとしては、吸水性又は透水性の良好
なる薄葉紙、不織布、合成樹脂のネツトシートの
何れでもよく、10〜30ｇ／m2のものが好ましい。。
薄葉紙いわゆるテイシユー紙の場合には、クレー
プ加工されたものが好ましく、特に30％以上のク
レープ率のものが好適である（クレープ率とは、
クレープ加工のされていない場合の長さに対する
クレープ加工後の縮みの長さの割合を示したもの
である。）。
本発明のおむつは、従来の使いすておむつに比
し使いすておむつの他の特性、例えば尿の逆戻り
の尺度であるウエツトバツク値を悪化させること
なく高分子物質の単位重量当りの吸水量を大幅に
向上させることが可能となつた。高吸水性高分子
物質の値段は、その性状が異なるものであつても
ほぼ同一の価格であり、従つておむつの製造コス
トの低下にも大きな効果をもたらすことができ
る。
以下、実施例に基き本発明を更に詳しく説明す
る。
本発明の使いすておむつの構造を第１図にす。
第１図において、符号１は液透過性シート、２は
吸水シート、３は第１の吸水層、４は吸水シート
５の第１の吸水層側の高吸水性高分子物質、５は
高クレープ率の吸水シート、６は吸水シート５の
第２の吸水層側の高吸水性高分子物質、７は第２
の吸水層、８は吸水シート、９は液不透過性シー
トを示す。
実施例 １
第１図に示す吸水シート５としてクレープ率の
異なる吸水紙（米坪19.0ｇ／m2クレープ率15.5
％、31.0％、52.0％のもの）を用いて第１図に示
す構造の紙おむつを作り、その吸水特性を比較し
た。
第１図における吸水紙２及び８としてクレープ
率15.5％のクレープ紙を、第１吸水層３及び第２
吸水層７には175ｇ／m2の綿状パルプを、吸水紙
５の第１の吸水層側の高吸水性高分子物質４とし
ては人工尿による吸水能が44.8ｇ／ｇのポリアク
リル酸系高吸水性物質を、吸水紙５の第２の吸水
層側の高吸水性高分子物質６としては人工尿によ
る吸水能が75.0ｇ／ｇのポリアクリル酸系高吸水
性物質を用いた。高吸水性高分子物質の添加率は
第１の吸水層側、第２の吸水層側とも20ｇ／cm2と
した。
人工尿の組成は尿素1.94％、塩化ナトリウム
0.80％、硫酸マグネシウム0.10％、塩化カルシウ
ム0.06％、残部純水のものを用いた。
結果を表−１に示すが、参考値に比較して、ウ
エツトバツク値は同等であるが吸水量が大きく、
又クレープ率30％以上の吸水紙を用いることによ
りウエツトバツク値を低下させることなく吸水量
をアツプ出来ることがわかつた。
また、参考値として、人工尿吸水能44.8ｇ／ｇ
の高吸水性高分子物質を吸水紙の第１の吸水層側
と第２の吸水層側に使用し、他の実施例１と同様
にして評価した結果も表−１に示した。
[Industrial Field of Application] The present invention relates to disposable diapers.
More specifically, the present invention relates to a disposable diaper with excellent water absorption performance. [Background of the invention] As is well known, disposable diapers are made of polyester,
It consists of a liquid-permeable surface sheet made of nonwoven fabric such as polypropylene or rayon, a liquid-impermeable waterproof sheet made of polyethylene or polypropylene film, and a water-absorbing layer made of cotton pulp, water-absorbing paper, etc. inserted between them. ing. In addition, powdered superabsorbent polymer substances have recently been used to improve the water absorption capacity of the water absorption layer and to make the entire disposable diaper as thin and compact as possible. Various types of superabsorbent polymer materials are commercially available, including polyacrylic acid, starch, and carboxymethyl cellulose, and all of them can be used, but none of them can be used in conventional disposable diapers. A type of super absorbent polymer substance is used by uniformly dispersing it in cotton pulp, or by scattering it in a layer between cotton pulp, or by putting it between water absorbing paper. It was sometimes used by placing it in the middle of the water absorption layer. However, this method of use has had problems such as insufficient water absorption performance despite the use of a large amount of expensive superabsorbent polymeric material, resulting in an increase in price. As an improvement method for this, the first water-absorbing layer forms the upper layer between the liquid-permeable top sheet and the liquid-impermeable back sheet, and the second water-absorbing layer forms the lower layer. As already proposed by the present inventors, it is effective to use a superabsorbent polymer material whose water absorption amount is smaller than that of the superabsorbent polymer material used in the second water absorption layer. (Japanese Unexamined Patent Publication No. 61-289101). [Object of the Invention] It is an object of the present invention to solve the above-mentioned problems of conventional disposable diapers and to provide an inexpensive disposable diaper with excellent water absorbency. [Means for Solving the Invention] In the present invention, a water-absorbing sheet is sandwiched between a liquid-permeable top sheet and a liquid-impermeable back sheet to form a first water-absorbing layer forming an upper layer and a lower layer. In a disposable diaper having a second water-absorbing layer, a super-absorbent polymer material is provided in layers on both sides of the water-absorbing sheet, and the super-absorbent polymer material on the first water-absorbing layer side of the water-absorbing sheet absorbs water. This disposable diaper is characterized by using a material having a water absorption capacity smaller than that of the super absorbent polymer material on the second water absorption layer side. As the superabsorbent polymer used in the present invention, all known superabsorbent polymers such as polyacrylic acid, starch, and carboxymethyl cellulose can be used. The superabsorbent polymer material used on the second water-absorbing layer side of the water-absorbing sheet should have a water absorption of 30 g/g or more, preferably 50 g/g or more, as measured using artificial urine. Preferably, the super absorbent polymer material used on the first water absorbing layer side of the water absorbing sheet has a water absorption of 50 g/g or less, preferably 40 g/g.
Preferably, the following are used: The water-absorbing sheet may be any thin paper, nonwoven fabric, or synthetic resin net sheet that has good water absorption or water permeability, and preferably has a weight of 10 to 30 g/m 2 . .
In the case of tissue paper, so-called tissue paper, it is preferable to use crepe-processed paper, and in particular, one with a crepe rate of 30% or more is preferable (the crepe rate is
This figure shows the ratio of the length of shrinkage after crepe processing to the length without crepe processing. ). Compared to conventional disposable diapers, the diaper of the present invention has improved water absorption per unit weight of the polymer material without deteriorating other characteristics of disposable diapers, such as wet bag value, which is a measure of urine relapse. It has become possible to significantly improve this. The prices of superabsorbent polymeric materials are almost the same even if they have different properties, and therefore can have a great effect on reducing the manufacturing cost of diapers. Hereinafter, the present invention will be explained in more detail based on Examples. FIG. 1 shows the structure of the disposable diaper of the present invention.
In FIG. 1, reference numeral 1 is a liquid-permeable sheet, 2 is a water-absorbing sheet, 3 is a first water-absorbing layer, 4 is a superabsorbent polymer material on the first water-absorbing layer side of the water-absorbing sheet 5, and 5 is a high crepe 6 is the super absorbent polymer material on the second water absorbing layer side of the water absorbing sheet 5, 7 is the second water absorbing sheet.
, 8 is a water-absorbing sheet, and 9 is a liquid-impermeable sheet. Example 1 As the water-absorbing sheet 5 shown in FIG.
%, 31.0%, and 52.0%) were used to make disposable diapers with the structure shown in Figure 1, and their water absorption properties were compared. Crepe paper with a crepe rate of 15.5% is used as water-absorbing papers 2 and 8 in FIG.
The water-absorbing layer 7 is made of cotton-like pulp of 175 g/m 2 , and the super-absorbent polymer material 4 on the first water-absorbing layer side of the water-absorbing paper 5 is a polyacrylic acid-based material with a water absorption capacity of 44.8 g/g by artificial urine. As the super absorbent polymer material 6 on the second water absorbing layer side of the water absorbing paper 5, a polyacrylic acid super absorbent material having a water absorption capacity of 75.0 g/g by artificial urine was used. The addition rate of the super absorbent polymer substance was 20 g/cm 2 on both the first water absorbing layer side and the second water absorbing layer side. The composition of artificial urine is urea 1.94%, sodium chloride.
0.80%, magnesium sulfate 0.10%, calcium chloride 0.06%, and the balance pure water. The results are shown in Table 1. Compared to the reference values, the wet back value was the same, but the amount of water absorbed was larger.
It was also found that by using water-absorbing paper with a crepe rate of 30% or more, the water absorption amount could be increased without decreasing the wet back value. In addition, as a reference value, artificial urine water absorption capacity 44.8g/g
Table 1 also shows the results of evaluation in the same manner as in Example 1, using the highly water-absorbing polymeric material of 1.
【表】
実施例 ２
実施例１における符号１の不織布よりなる表面
シートを用いない吸収材を作り、同様の比較を行
つた。結果を表−２に示す。実施例１に比較して
ウエツトバツク値が大きくなつているが実施例１
と同様にウエツトバツク値は参考値と同等である
が、吸水量が大きく、又吸水紙のクレープ率が大
きくなると吸水量アツプが生じていることがわか
つた。[Table] Example 2 An absorbent material without the surface sheet made of nonwoven fabric designated by reference numeral 1 in Example 1 was made, and a similar comparison was made. The results are shown in Table-2. Although the wet back value is larger compared to Example 1, Example 1
Similarly, the wet back value was the same as the reference value, but it was found that the water absorption increased as the water absorption increased and the crepe rate of the water absorbent paper increased.
【表】
以上の結果より、第１の吸水層と第２の吸水層
の中間体にクレープ率が30％以上の吸水紙を用
い、第１の吸水層より第２の吸水層の方で吸水能
の大きな高分子物質を用いる場合、おむつ全体の
吸水能を低下させることなく、逆戻りの尺度であ
るウエツトバツク値を低レベルに維持できること
が判る。
以下、実施例で用いた各種の測定法を説明す
る。
(1) 高吸水性高分子物質の吸水量測定法。
第２図に示す装置を用いて測定した。
高吸水性高分子物質１１ 1.0ｇを小穴のあ
いた支持板１２の上の200メツシユナイロン布
１３上におき、下面より人工尿１４と20分間接
触させたときに高分子物質が人工尿を吸収する
量（ｇ）を測定した。なお、第２図中１５はビ
ユーレツト、１６は空気入口、１７，１８はバ
ルブである。
(2) 吸水量の測定法
５×５cmの大きさのおむつのサンプルを高吸
水性高分子物質とナイロン布の代りに小穴のあ
いた支持板上においた以外は上記(1)の方法と同
じ方法で測定した。
(3) ウエツトバツク値
10×10cmの大きさのサンプルに人工尿30mlを
添加した後表面シート上にろ紙を置き、その上
に1.0Kgの重しを乗せ５分間保持した後のろ紙
の吸水量（重量）を測定した。[Table] Based on the above results, we found that using water-absorbing paper with a crepe rate of 30% or more as an intermediate between the first water-absorbing layer and the second water-absorbing layer, the second water-absorbing layer absorbs more water than the first water-absorbing layer. It can be seen that when a high-performance polymeric material is used, the wet back value, which is a measure of relapse, can be maintained at a low level without reducing the water absorption capacity of the diaper as a whole. Below, various measurement methods used in Examples will be explained. (1) Method for measuring water absorption of super absorbent polymer substances. The measurement was carried out using the apparatus shown in FIG. 1.0 g of super absorbent polymer material 11 was placed on 200 mesh nylon cloth 13 on support plate 12 with small holes, and when it was brought into contact with artificial urine 14 from the bottom for 20 minutes, the polymer material absorbed the artificial urine. The amount (g) was measured. In FIG. 2, 15 is a filter, 16 is an air inlet, and 17 and 18 are valves. (2) Method for measuring water absorption Same method as in (1) above except that a 5 x 5 cm diaper sample was placed on a support plate with small holes instead of the super absorbent polymer material and nylon cloth. It was measured with (3) Wet back value After adding 30 ml of artificial urine to a sample with a size of 10 x 10 cm, place a filter paper on the top sheet, place a weight of 1.0 kg on top of it, and hold it for 5 minutes.The water absorption amount of the filter paper ( weight) was measured.
第１図は本発明の紙おむつの断面概略図を示す
図、第２図は高吸水性高分子物質の吸水量を測定
するための装置の概略図を示す。
１……不織布（表面シート）、２，８……吸水
紙、３……綿状パルプ（第１の吸水層）、４……
第１の吸水層側高吸水性高分子物質、５……高ク
レープ率吸水シート、６……第２の吸水層側高吸
水性高分子物質、７……綿状パルプ（第２の吸水
層）、９……ポリエチレンシート、１１……高吸
水性高分子物質、１２……小穴のあいた支持板、
１３……200メツシユのナイロン布、１４……人
工尿。
FIG. 1 is a diagram showing a schematic cross-sectional view of a disposable diaper of the present invention, and FIG. 2 is a diagram showing a schematic diagram of an apparatus for measuring the amount of water absorbed by a superabsorbent polymeric substance. 1... Nonwoven fabric (top sheet), 2, 8... Water-absorbing paper, 3... Cotton-like pulp (first water-absorbing layer), 4...
Super absorbent polymer material on the first water absorbing layer side, 5... High crepe rate water absorbing sheet, 6... Super absorbent polymer material on the second water absorbing layer side, 7... Cotton pulp (second water absorbing layer ), 9... polyethylene sheet, 11... super absorbent polymer material, 12... support plate with small holes,
13...200 mesh nylon cloth, 14...artificial urine.
Claims (1)
シート９の間に、吸水シート５をはさんで上層を
形成する第１の吸水層３と下層を形成する第２の
吸水層７を有する使いすておむつにおいて、該吸
水シートと第１の吸水層との間及び該吸水シート
と第２の吸水層との間に高吸水性高分子物質を層
状に設け、且つ、吸水シートの第１の吸水層側の
高吸水性高分子物質４の吸水能が、第２の吸水層
側の高吸水性高分子物質６の吸水能よりも小さい
ものを用いたことを特徴とする使いすておむつ。1 A first water-absorbing layer 3 forming an upper layer and a second water-absorbing layer 7 forming a lower layer are sandwiched between a liquid-permeable top sheet 1 and a liquid-impermeable back sheet 9. A disposable diaper comprising: a super absorbent polymer material provided in layers between the water absorbent sheet and the first water absorbent layer and between the water absorbent sheet and the second water absorbent layer; A disposable product characterized in that the superabsorbent polymeric material 4 on the first water-absorbing layer side has a water-absorbing capacity smaller than the water-absorbing capacity of the superabsorbent polymeric material 6 on the second water-absorbing layer side. Diapers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60185838A JPS6245702A (en) | 1985-08-26 | 1985-08-26 | Disposable diaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60185838A JPS6245702A (en) | 1985-08-26 | 1985-08-26 | Disposable diaper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6245702A JPS6245702A (en) | 1987-02-27 |
| JPH0380023B2 true JPH0380023B2 (en) | 1991-12-20 |
Family
ID=16177762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60185838A Granted JPS6245702A (en) | 1985-08-26 | 1985-08-26 | Disposable diaper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245702A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256701A (en) * | 1987-04-15 | 1988-10-24 | 株式会社 ララ | Disposable diaper |
| WO2019130591A1 (en) * | 2017-12-29 | 2019-07-04 | 花王株式会社 | Absorber and absorbent article |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55142701A (en) * | 1979-04-20 | 1980-11-07 | Kao Corp | Disposable diaper |
| JPS566096U (en) * | 1980-07-07 | 1981-01-20 | ||
| US4381783A (en) * | 1978-10-24 | 1983-05-03 | Johnson & Johnson | Absorbent article |
| JPS5892351A (en) * | 1981-11-26 | 1983-06-01 | ライオン株式会社 | Absorbing article |
| US4461621A (en) * | 1981-10-19 | 1984-07-24 | Colgate-Palmolive Company | Disposable diaper with polymer coating |
| JPS60210257A (en) * | 1983-12-20 | 1985-10-22 | ザ、プロクタ−、エンド、ギヤンブル、カンパニ− | Absorbable laminated structure |
-
1985
- 1985-08-26 JP JP60185838A patent/JPS6245702A/en active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4381783A (en) * | 1978-10-24 | 1983-05-03 | Johnson & Johnson | Absorbent article |
| JPS55142701A (en) * | 1979-04-20 | 1980-11-07 | Kao Corp | Disposable diaper |
| JPS566096U (en) * | 1980-07-07 | 1981-01-20 | ||
| US4461621A (en) * | 1981-10-19 | 1984-07-24 | Colgate-Palmolive Company | Disposable diaper with polymer coating |
| JPS5892351A (en) * | 1981-11-26 | 1983-06-01 | ライオン株式会社 | Absorbing article |
| JPS60210257A (en) * | 1983-12-20 | 1985-10-22 | ザ、プロクタ−、エンド、ギヤンブル、カンパニ− | Absorbable laminated structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6245702A (en) | 1987-02-27 |
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