JPS63294853A - Absorbable article - Google Patents
Absorbable articleInfo
- Publication number
- JPS63294853A JPS63294853A JP62132069A JP13206987A JPS63294853A JP S63294853 A JPS63294853 A JP S63294853A JP 62132069 A JP62132069 A JP 62132069A JP 13206987 A JP13206987 A JP 13206987A JP S63294853 A JPS63294853 A JP S63294853A
- Authority
- JP
- Japan
- Prior art keywords
- sponge
- liquid
- absorbing
- compressed body
- compressed
- 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.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- 239000002250 absorbent Substances 0.000 claims description 33
- 230000002745 absorbent Effects 0.000 claims description 33
- 229920002678 cellulose Polymers 0.000 claims description 17
- 239000001913 cellulose Substances 0.000 claims description 16
- 230000008961 swelling Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 20
- 239000007788 liquid Substances 0.000 abstract description 13
- 229920002635 polyurethane Polymers 0.000 abstract description 5
- 239000004814 polyurethane Substances 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000002341 toxic gas Substances 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 229920000297 Rayon Polymers 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000002175 menstrual effect Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は液吸収性能及び湿潤時の保形性にすぐれた吸収
性物品に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an absorbent article that has excellent liquid absorption performance and shape retention when wet.
今日市販されている生理用ナプキン、使い捨ておむつ等
の吸収性物品には、経血や尿を吸収する吸収体が配され
ている。この吸収体は、通常、綿状パルプを主体とし、
その他に吸収紙、吸水膨潤性ポリマー等で構成されてい
る。このような吸収体を用いた生理用ナプキン、使い捨
ておむつは。BACKGROUND OF THE INVENTION Absorbent articles such as sanitary napkins and disposable diapers that are commercially available today are equipped with absorbent bodies that absorb menstrual blood and urine. This absorbent material is usually made mainly of cotton-like pulp,
In addition, it is made of absorbent paper, water-absorbing and swelling polymers, etc. Sanitary napkins and disposable diapers use such absorbers.
使用中１体の動きにより、吸収体が切れたり、あるいは
よれて塊となることがあり、その結果、経血や尿の漏れ
が生じることがある。このような欠点を改良すべく、こ
れまでに種々の提案がなされている０例えば、特開昭５
７−１５０９５８号公報、特開昭６０−４２４１６号公
報には、発泡ポリウレタンを主体とした吸収体を用いた
ものが開示されており、このものは湿潤時の保形性及び
クッション性に優れた効果を示し、吸収性能においても
従来のポリウレタンスポンジより良好である。しかし、
綿状パルプ主体の吸収体に比べると、吸収速度、吸収容
量は劣っており、未だ満足し得るものではない。Movement of one body during use may cause the absorbent body to break or twist, forming clumps, which may result in leakage of menstrual blood or urine. In order to improve these drawbacks, various proposals have been made so far.
7-150958 and Japanese Patent Application Laid-open No. 60-42416 disclose an absorbent material mainly made of foamed polyurethane, which has excellent shape retention and cushioning properties when wet. It is effective and has better absorption performance than conventional polyurethane sponges. but,
Compared to absorbers mainly made of cotton-like pulp, the absorption speed and absorption capacity are inferior, and are still unsatisfactory.
また、このものは１合成樹脂を主体としていることから
、焼却時に有害ガスを発生することがある為、使用後の
廃棄上にも問題点が残されている。Furthermore, since this material is mainly composed of 1 synthetic resin, it may generate harmful gases when incinerated, so there remains a problem in terms of disposal after use.
本発明は、吸収性物品として吸収性能に優れ、湿潤時に
おいても吸収体が切れることもなく、保形性が良好であ
り、且つ廃棄上の問題が生じない吸収性物品を提供する
ことを目的とする。The purpose of the present invention is to provide an absorbent article that has excellent absorbent performance, does not break even when wet, has good shape retention, and does not cause disposal problems. shall be.
本発明によれば、セルロース系スポンジの圧縮体を少な
くとも吸収体の一部に用いたことを特徴とする吸収性物
品が提供される。According to the present invention, there is provided an absorbent article characterized in that a compressed cellulose sponge is used for at least a part of the absorbent body.
本発明におけるセルロース系スポンジとはセルロース骨
格を有する材料のスポンジを意味し、このようなものと
しては、セルロース自体からなるスポンジの他、セルロ
ース誘導体、例えば、ビスコース、セルロースエーテル
類、セルロースエステル類等からなるスポンジあるいは
それらの混合物からなるスポンジがある。このようなス
ポンジの製造例を示すと、例えば、ビスコーススポンジ
は次のようにして製造される。In the present invention, the cellulose sponge refers to a sponge made of a material having a cellulose skeleton, and includes sponges made of cellulose itself, as well as cellulose derivatives such as viscose, cellulose ethers, cellulose esters, etc. There are sponges made of or a mixture of these. To give an example of manufacturing such a sponge, for example, a viscose sponge is manufactured as follows.
先ず、セルロースをアルカリにてアルカリセルロースと
し、その後、二硫化炭素により硫化してセルロースザン
テートをつくり、更に水酸化ナトリウム溶液を加えてビ
スコースを調製する。このセルロースの溶解物であるビ
スコースに芒硝を添加し、加熱凝固させ、水洗後、希硫
酸溶液で処理し、再び水洗し、更に炭酸ソーダで中和後
水洗し。First, cellulose is made into alkali cellulose with an alkali, then sulfurized with carbon disulfide to produce cellulose xanthate, and further a sodium hydroxide solution is added to prepare viscose. Glauber's salt was added to viscose, which is a dissolved product of cellulose, and the mixture was coagulated by heating, washed with water, treated with a dilute sulfuric acid solution, washed again with water, further neutralized with soda carbonate, and washed with water.
乾燥を行い、ビスコーススポンジとする。Dry and make a viscose sponge.
本発明で用いるセルロース系スポンジは、未圧縮時にお
いて、密度０．０１−０．２ｇ／ａｄを有し、また重さ
４５ｇ／ｃｊの荷重に対する圧縮変形率１０〜６０％を
示す。The cellulose sponge used in the present invention has a density of 0.01-0.2 g/ad when uncompressed, and exhibits a compressive deformation rate of 10-60% under a load of 45 g/cj.
本発明で用いる吸収体は、セルロース系スポンジ又は吸
水膨潤性ポリマーを含有させたセルロース系スポンジ圧
縮体を含むものであり、この圧縮体は、内部に気泡を包
含する網状構造を示し、その密度は０．１〜０ 、８ｇ
／ ｃｄ、より好ましくは０．３〜０．６ｇ／ｄであり
、またその空隙率は４０〜９０％、より好ましくは、５
０〜８０％である。The absorbent body used in the present invention includes a cellulose sponge or a compressed cellulose sponge containing a water-absorbing and swelling polymer, and this compressed body has a network structure containing air bubbles inside, and its density is 0.1~0, 8g
/ cd, more preferably 0.3 to 0.6 g/d, and the porosity is 40 to 90%, more preferably 5
It is 0-80%.
本発明において、セルロース系スポンジ（以下、単にス
ポンジとも言う）に吸水膨潤性ポリマーを含有させる場
合、この吸水膨潤性ポリマーは少なくとも自己の重量の
１０倍の水を吸収し得るものであり、従来公知のものを
用いることができる。このようなものとしては１例えば
、アクリロニトリルグラフト化澱粉の加水分解物、ポリ
アクリル酸塩架橋体等がある。このような吸水膨潤性ポ
リマーは、粒状、粉末状あるいは繊維状等の形状で用い
られ、その形状は特に制限されない、この吸水膨潤性ポ
リマーは、スポンジ中に分散させたり、スポンジとスポ
ンジとの間にサンドインチ状に介在させたり等してスポ
ンジ中に含有させることができる。さらに、吸水膨潤性
ポリマーの原料であるモノマーを、スポンジ中に含浸さ
せ、この状態で重合反応及び架橋反応を行ってスポンジ
中に含有させることもできる。この吸水膨潤性ポリマー
の使用量は、全吸収体に対して１通常５〜７０重量％の
割合である。In the present invention, when a cellulose sponge (hereinafter also simply referred to as a sponge) contains a water-absorbing and swelling polymer, the water-absorbing and swelling polymer is capable of absorbing at least 10 times its own weight of water, and is a conventionally known polymer. can be used. Examples of such materials include hydrolysates of acrylonitrile-grafted starch, crosslinked polyacrylates, and the like. Such a water-absorbing swelling polymer is used in the form of particles, powder, or fibers, and the shape is not particularly limited. It can be contained in the sponge by interposing it in the form of a sandwich. Furthermore, the monomer that is the raw material for the water-absorbing and swelling polymer can be impregnated into a sponge, and in this state, a polymerization reaction and a crosslinking reaction can be performed to contain it in the sponge. The amount of water-swellable polymer used is usually 5 to 70% by weight based on the total absorbent material.
本発明において用いるスポンジには、必要に応じ、着色
剤やその他の液吸収性添加剤、特に繊維状物質等を含有
させることができ、また、本発明の目的を特に阻害しな
い限り、スポンジ製造時に他の物質を添加することもで
きる。The sponge used in the present invention may contain colorants and other liquid-absorbing additives, especially fibrous substances, etc., as necessary.Also, unless it particularly impedes the purpose of the present invention, the sponge may contain colorants and other liquid-absorbing additives, especially fibrous substances. Other substances can also be added.
本発明の吸収性物品は、前記した如きスポンジ又は吸水
膨潤性ポリマーを含有させたスポンジをローラー等で圧
縮して形成した圧縮体を吸収体として含む構造物であり
、ナプキン、使い捨ておむつ等が包含される。The absorbent article of the present invention is a structure that includes, as an absorbent body, a compressed body formed by compressing a sponge as described above or a sponge containing a water-absorbing and swelling polymer with a roller, etc., and includes napkins, disposable diapers, etc. be done.
本発明における吸収体は、圧縮体であることから非常に
コンパクトであり、かつ液吸収速度及び°液吸収容量に
すぐれると共に、湿潤時の保形性においてもすぐれてい
る。即ち１本発明により吸収体として用いるスポンジ圧
縮体は、液体と接触するとその液を迅速かつ大きな吸収
容量で吸収し。Since the absorbent body of the present invention is a compressed body, it is very compact and has excellent liquid absorption speed and liquid absorption capacity, as well as excellent shape retention when wet. Namely, when the compressed sponge body used as an absorbent body according to the present invention comes into contact with a liquid, it absorbs the liquid quickly and with a large absorption capacity.
それ自体はその液吸収により体積を増加させる。As such, it increases in volume due to its liquid absorption.
この場合、その体積増加は、圧縮時の体積の少なくとも
２〜２０倍１通常は５−１５倍を示す０本発明によるス
ポンジ圧縮体は、網状構造を有することから、このよう
な液吸収によってもその形状がくずれるようなことはな
い、従って、本発明の吸収性物品は、従来の綿状パルプ
主体の吸収性物品に見られるような使用中における液吸
収した吸収体の切れや塊状化等の欠点はなく、またポリ
ウレタンスポンジを主体とした吸収性物品に見られる液
吸収速度や液吸収量に劣るという問題もない。さらに。In this case, the volume increase is at least 2 to 20 times the volume when compressed, usually 5 to 15 times. Since the compressed sponge according to the present invention has a network structure, it can also be increased by such liquid absorption. The absorbent article of the present invention does not lose its shape. Therefore, the absorbent article of the present invention does not suffer from breakage or clumping of the absorbent body after absorbing liquid during use, which is seen in conventional absorbent articles mainly made of cotton-like pulp. There are no drawbacks, and there is no problem of poor liquid absorption speed or amount seen in absorbent articles mainly made of polyurethane sponges. moreover.
本発明の場合、その吸収体はセルロース系のものである
ことから、ポリウレタンスポンジに見られるような使用
後の廃棄上の問題もない。In the case of the present invention, since the absorbent material is cellulose-based, there is no problem with disposal after use, which occurs with polyurethane sponges.
本発明の吸収性物品は、スポンジ圧縮体を吸収体として
用いることから、非常にコンパクトで、携帯に便利であ
る上、弾力性にも富み、ナプキンや使い捨ておむつとし
ての使用感にも非常にすぐれたものである。Since the absorbent article of the present invention uses a compressed sponge material as an absorbent material, it is very compact and convenient to carry, and is also highly elastic, making it extremely comfortable to use as a napkin or disposable diaper. It is something that
次に本発明を実施例によりさらに詳細に説明する。 Next, the present invention will be explained in more detail with reference to Examples.
実施例１〜５
厚さ１０１６１１のビスコーススポンジ（嵩密度０．０
４５ｇ／ｃＩｊ）をローラーにて圧縮し、密度が０．３
−０．６ｇ／ｊの種々のシートを調製した。該吸収体シ
ートの側面、裏面及び表面の一部を防漏フィルムで包み
、更に全面を不織布で被って生理用ナプキンをつくり、
試験に供した。その結果を表−１に示す、なお１表−１
における吸収速度、吸収容量及び湿潤時強度の内容は次
の通りである。Examples 1 to 5 Viscose sponge with a thickness of 101611 (bulk density 0.0
45g/cIj) was compressed with a roller, and the density was 0.3
- Various sheets of 0.6 g/j were prepared. A sanitary napkin is made by wrapping the side, back, and part of the surface of the absorbent sheet with a leak-proof film, and then covering the entire surface with a nonwoven fabric.
Tested. The results are shown in Table 1.Table 1
The contents of absorption rate, absorption capacity and wet strength are as follows.
生理食塩水１滴を吸い込むまでの時間。 The time it takes to inhale one drop of saline.
３７℃の生理食塩水を入れた容器に８ｇ／ ｒｘｊ荷重
下で５分間浸漬し、その後容器から取出し、 １０分間
水切を行った後、重量を測定し、その吸収倍率で表わし
た。The samples were immersed in a container containing physiological saline at 37° C. under a load of 8 g/rxj for 5 minutes, then taken out from the container, drained for 10 minutes, and weighed, which was expressed as absorption capacity.
吸収容量測定後の試料から吸収体のみを取り出し、該吸
収体を巾２５ｍｍに切断後、引張速度２００ｍｍ／ｗｉ
ｎの条件での破断強度を測定した。After measuring the absorption capacity, only the absorber was taken out from the sample, and after cutting the absorber into a width of 25 mm, the tensile speed was 200 mm/wi.
The breaking strength was measured under conditions of n.
表−１
０圧縮後の復元が大きく、圧縮シートの調製は不可実施
例６〜８
嵩密度０．０４５ｇ／ｊ、厚さ１０ｍ■のビスコースス
ポンジ（孔径１〜３ｍｍ）に、高吸収性ポリマーを単位
面積当り０．００３ｇ／ｊ−０，０１５ｇ／ａｊの範囲
で散布後、ローラーにて密度０．４５ｇ／ａ＃に圧縮し
た吸収体を調製し、該吸収体の側面、裏面及び表面の一
部を防漏フィルムで包み、更に全面を不織布で被って生
理用ナプキンをつくり、実施例１と同様の方法で試験し
た。その結果を表−２に示す。Table 1: Recovery after 0 compression is large, making it impossible to prepare a compressed sheet Examples 6 to 8 A superabsorbent polymer After spraying in the range of 0.003 g/j - 0,015 g/aj per unit area, an absorbent body was prepared by compressing it with a roller to a density of 0.45 g/a#, and the side, back and front surfaces of the absorbent body were A sanitary napkin was prepared by wrapping a portion of the napkin in a leak-proof film and then covering the entire surface with a nonwoven fabric, and tested in the same manner as in Example 1. The results are shown in Table-2.
表−２
以上の結果から、本発明によれば、吸収体にセルロース
系スポンジ圧縮体を用いることにより吸収速度、吸収容
量、保形性にすぐれた吸収性物品が得られることは明ら
かである。Table 2 From the above results, it is clear that according to the present invention, an absorbent article with excellent absorption rate, absorption capacity, and shape retention can be obtained by using a compressed cellulose sponge as the absorbent body.
Claims (2)
体の一部に用いたことを特徴とする吸収性物品。(1) An absorbent article characterized in that a compressed cellulose sponge is used for at least a part of the absorbent body.
範囲第１項の吸収性物品。(2) The absorbent article according to claim 1, wherein the compressed body contains a water-absorbing and swelling polymer.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62132069A JP2626758B2 (en) | 1987-05-27 | 1987-05-27 | Absorbent articles |
| DE8888304801T DE3863846D1 (en) | 1987-05-27 | 1988-05-26 | ABSORBENT ARTICLE. |
| EP19880304801 EP0293208B1 (en) | 1987-05-27 | 1988-05-26 | Absorptive article |
| AT88304801T ATE65411T1 (en) | 1987-05-27 | 1988-05-26 | ABSORBENT ARTICLE. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62132069A JP2626758B2 (en) | 1987-05-27 | 1987-05-27 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63294853A true JPS63294853A (en) | 1988-12-01 |
| JP2626758B2 JP2626758B2 (en) | 1997-07-02 |
Family
ID=15072787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62132069A Expired - Fee Related JP2626758B2 (en) | 1987-05-27 | 1987-05-27 | Absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2626758B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651783A1 (en) * | 1989-09-12 | 1991-03-15 | Elysees Balzac Financiere | CELLULOSIC ALVEOLARY MATERIAL WITH IMPROVED WATER RETENTION AND PREPARATION THEREOF |
| JPH03109067A (en) * | 1989-09-21 | 1991-05-09 | Lion Corp | Compressed body of cellulose sponge and preparation thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974763A (en) * | 1972-10-19 | 1974-07-18 | ||
| JPS49108169A (en) * | 1973-02-16 | 1974-10-15 | ||
| US3954493A (en) * | 1972-10-19 | 1976-05-04 | Avicon, Inc. | Regenerated cellulose sponge |
| JPS5615458A (en) * | 1979-07-19 | 1981-02-14 | Asahi Chemical Ind | Absorbable nonwoven fabric |
| JPS5697448A (en) * | 1979-12-31 | 1981-08-06 | Uni Charm Corp | Sanitary material and method |
| JPS57153001A (en) * | 1981-03-18 | 1982-09-21 | Kao Corp | Production of fibrous carboxymethylcellulose |
| JPS5926560A (en) * | 1982-06-01 | 1984-02-10 | ザ・プロクタ−・エンド・ギヤンブル・カンパニ− | Hydrophilic fine fiber-like absorbing web |
| JPS6018353A (en) * | 1983-07-11 | 1985-01-30 | Ricoh Co Ltd | Magnetostrictive printer |
| JPS612218U (en) * | 1984-06-08 | 1986-01-08 | 有限会社 栗林 | water absorbent |
| JPS6222811A (en) * | 1985-07-22 | 1987-01-31 | Mitsubishi Petrochem Co Ltd | Production of water-absorptive composite |
| JPS6227944A (en) * | 1985-07-22 | 1987-02-05 | パ−ソナル・プロダクツ・カンパニ− | Crosslinked pore-containing microfibrilated cellulose prepared by freezing and solvent replacement |
| JPS6282956A (en) * | 1985-09-18 | 1987-04-16 | チコピ− | Nonwoven sponge for operation equipped with x-ray dectable element |
-
1987
- 1987-05-27 JP JP62132069A patent/JP2626758B2/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4974763A (en) * | 1972-10-19 | 1974-07-18 | ||
| US3954493A (en) * | 1972-10-19 | 1976-05-04 | Avicon, Inc. | Regenerated cellulose sponge |
| JPS49108169A (en) * | 1973-02-16 | 1974-10-15 | ||
| JPS5615458A (en) * | 1979-07-19 | 1981-02-14 | Asahi Chemical Ind | Absorbable nonwoven fabric |
| JPS5697448A (en) * | 1979-12-31 | 1981-08-06 | Uni Charm Corp | Sanitary material and method |
| JPS57153001A (en) * | 1981-03-18 | 1982-09-21 | Kao Corp | Production of fibrous carboxymethylcellulose |
| JPS5926560A (en) * | 1982-06-01 | 1984-02-10 | ザ・プロクタ−・エンド・ギヤンブル・カンパニ− | Hydrophilic fine fiber-like absorbing web |
| JPS6018353A (en) * | 1983-07-11 | 1985-01-30 | Ricoh Co Ltd | Magnetostrictive printer |
| JPS612218U (en) * | 1984-06-08 | 1986-01-08 | 有限会社 栗林 | water absorbent |
| JPS6222811A (en) * | 1985-07-22 | 1987-01-31 | Mitsubishi Petrochem Co Ltd | Production of water-absorptive composite |
| JPS6227944A (en) * | 1985-07-22 | 1987-02-05 | パ−ソナル・プロダクツ・カンパニ− | Crosslinked pore-containing microfibrilated cellulose prepared by freezing and solvent replacement |
| JPS6282956A (en) * | 1985-09-18 | 1987-04-16 | チコピ− | Nonwoven sponge for operation equipped with x-ray dectable element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2651783A1 (en) * | 1989-09-12 | 1991-03-15 | Elysees Balzac Financiere | CELLULOSIC ALVEOLARY MATERIAL WITH IMPROVED WATER RETENTION AND PREPARATION THEREOF |
| JPH03109067A (en) * | 1989-09-21 | 1991-05-09 | Lion Corp | Compressed body of cellulose sponge and preparation thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2626758B2 (en) | 1997-07-02 |
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| Date | Code | Title | Description |
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| LAPS | Cancellation because of no payment of annual fees |