JPS60141551A - High absorptive sheet - Google Patents
High absorptive sheetInfo
- Publication number
- JPS60141551A JPS60141551A JP58245776A JP24577683A JPS60141551A JP S60141551 A JPS60141551 A JP S60141551A JP 58245776 A JP58245776 A JP 58245776A JP 24577683 A JP24577683 A JP 24577683A JP S60141551 A JPS60141551 A JP S60141551A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sheet
- oil
- cmc
- paper
- 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
- 239000011347 resin Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 13
- -1 alkali metal salt Chemical class 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims 1
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 239000001768 carboxy methyl cellulose Substances 0.000 claims 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 69
- 239000003921 oil Substances 0.000 description 35
- 238000010521 absorption reaction Methods 0.000 description 20
- 239000002250 absorbent Substances 0.000 description 17
- 238000001914 filtration Methods 0.000 description 13
- 230000002745 absorbent Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- 229920002785 Croscarmellose sodium Polymers 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 240000008415 Lactuca sativa Species 0.000 description 2
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 235000012045 salad Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 241000287107 Passer Species 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- UTLZBWAGLRNNAY-UHFFFAOYSA-J thorium(4+);dicarbonate Chemical compound [Th+4].[O-]C([O-])=O.[O-]C([O-])=O UTLZBWAGLRNNAY-UHFFFAOYSA-J 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、水や各種の塩水溶液を高度に吸収し、かつ保
持する複合シートに関するものであり、ｉｉｐ Ｌ ＜
は油類など有機媒体中の水を除去する吸水フィルターや
紙おむつ、生理用品などに使用することのできる、吸水
特性と保水特性の著しく改善された高吸収性シートに関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite sheet that highly absorbs and retains water and various salt solutions, iip L <
relates to a superabsorbent sheet with significantly improved water absorption and water retention properties that can be used in water absorption filters for removing water from organic media such as oils, disposable diapers, sanitary products, etc.
今］」、各種の石油系燃料や潤滑油が広く使用されてい
るが、使用時あるいは貯蔵中に大気中の水分の凝結、そ
の他の原因で水が混入し、燃料や油の品質を低下させる
傾向がある。これらの混入水は二相に分離していること
もあれば、エマルジョン化していることもあり、更に一
部油中に溶解しているものもあって、単なる傾斜や分液
などの手段では分離できないことが多い。最近各種の高
度吸水性樹脂が開発されており、これらは自重の」−０
０倍以上の水を吸収することができるため、水が混入し
ている油類に添加し攪拌することにより水をその樹脂に
吸収させて除去することができる。Nowadays, various petroleum-based fuels and lubricating oils are widely used, but water condensation in the atmosphere or other causes during use or storage degrades the quality of the fuels and oils. Tend. Sometimes these mixed waters are separated into two phases, sometimes they are emulsified, and some of them are even partially dissolved in the oil, so they cannot be separated by simple methods such as tilting or liquid separation. There are many things that cannot be done. Recently, various highly water-absorbent resins have been developed, and these have a weight of "-0"
Since it can absorb 0 times more water, by adding it to oils containing water and stirring, the water can be absorbed into the resin and removed.
しかしながら、これらの高度吸水性樹脂は大部分が粉末
状あるいは顆粒状であるので、吸水処理談、油とこれら
の樹脂を分離する作業、即ちｆＩ過が必要となる。油類
の：ｊ１過に用いるフィルター累月そめものに高度吸水
性を賦与することができれば、脱水工程を合理化できる
と共に、夾雑物等の除去もでき、甚だ好都合である。However, since most of these highly water-absorbing resins are in the form of powder or granules, water absorption treatment and separation of these resins from oil, ie, fI filtration, are required. If highly water-absorbing properties could be imparted to the filter mixture used for filtration of oils, the dehydration process could be streamlined and impurities etc. could be removed, which would be very convenient.
また、最近生理用品や紙おむつの分野を中心に高吸収剤
入りシートが出てきている。しかし、これらの殆んどの
ものがシートの間に粉末状あるいハ′（η粒状の高吸水
性樹脂をはさんだサンドインチ方式のものであり、現在
このシートの技術的課題は、粉末状あるいは預粒状の高
吸水性樹脂をいかにして均一に散布し、固定化するかで
あり、本来性している高吸水性、高保水性ケ最終製品段
階において、いかにして十分に発揮させるかである。In addition, sheets containing superabsorbent materials have recently appeared mainly in the fields of sanitary products and disposable diapers. However, most of these sheets are of the sandwich type, in which powdered or granular superabsorbent resin is sandwiched between sheets. The problem is how to uniformly disperse and immobilize granular superabsorbent resin, and how to make full use of its inherent high water absorption and high water retention properties at the final product stage. .
このような高吸水性樹脂をシート状にすることについて
は既に多くの提案がある（を特開昭５６−９４５８、特
開昭５ Ｇ −８ｉ３８３９、特開昭５６− ：ｙ ｉ
１．１５２など）。しかしながら、これらの高吸水性
樹脂は成形加工性に乏しい粉末状寸たは粒状であるため
、パルプ、紙、繊維など他の素材の間にはさんでシート
状にするものであり、これらのパルプ、紙、繊維などは
単に毛細管現象で吸水するだけであるため、その吸水量
も少なく、かつ、その保水能力は非常に低い０従って、
高吸水性樹脂が不均一に充填積層された場合、高吸水性
樹脂の少ない、あるいは殆んどない個所では保水能力の
非常に低いシートになってしまうという大きな欠点があ
る。There have already been many proposals for making such super absorbent resin into sheet form (JP-A-56-9458, JP-A-5G-8i3839, JP-A-56-: y i
1.152 etc.). However, these superabsorbent resins are powder-like or granular with poor moldability, so they are sandwiched between other materials such as pulp, paper, and fibers to form a sheet. , paper, fibers, etc. only absorb water by capillary action, so their water absorption is small, and their water retention capacity is very low.
If the superabsorbent resin is filled and laminated unevenly, there is a major drawback in that the sheet will have a very low water retention capacity in areas where there is little or almost no superabsorbent resin.
橋ＣＭＣからなるシートについて開示しているが水溶性
ＣＭＣを有機溶剤中で抄紙するため、製造上、犬がかり
な溶剤対策など設備面で多くの費用がかかるという欠点
がある。Although a sheet made of Hashi CMC is disclosed, since water-soluble CMC is made into paper in an organic solvent, there is a drawback that a large amount of equipment is required for manufacturing, including extensive measures against solvents.
そこで鋭意検討した結果、高吸水性樹脂を積層する際に
、その片面あるいは両面にＣＭＣ″：／−トを使用する
ことによって、非常に高い吸水能力と同時に、非常に高
い保水能力を有するシートが得られることを見出し、本
発明に到達した。As a result of extensive research, we found that by using CMC'':/-t on one or both sides of superabsorbent resin when laminating them, we can create a sheet that has both extremely high water absorption and water retention capabilities. The present invention has been achieved based on the discovery that the present invention can be obtained.
本発明に使用するＣ Ｍ Ｃ，−＝ｌ−は、背分ｉ１に
４．２−２９２５炭酸す１、リウムなどでＣＭ Ｃ７
／Ｌ乃１）ノＰｊ−ることにより基本的に製造できる。CM C,-=l- used in the present invention is CM C7 with 4.2-2925 carbonate 1, lium, etc.
It can basically be produced by /Lno1)NOPj-.
更に、このＣＭ Ｃ，−１−ばＤＳを（１，３〜］−，
Ｑ、坪量を２０−：３ｏｏｇ７ｚ、透気度を２０秒以下
（２枚当りエアー３００ｒｒｔの通過時間）に調整した
ものを、加熱処理する方が吸水フィルター用策材として
は好ましい。なお、とのＣＭＣシートは１００％ＣＭＣ
の繊維から成る＞斗であ一つでも良く、またはＣＭＣ繊
維とパルプなどのセルロース繊維、との混抄シトであっ
ても良い。ただし、セルロース繊維の混抄率は４０重量
％以下が好ましい。Furthermore, if this CM C, -1-, DS is (1,3~]-,
Q. It is preferable as a material for a water-absorbing filter to heat-treat a material whose basis weight is 20:3oog7z and whose air permeability is adjusted to 20 seconds or less (passing time of 300 rrt of air per two sheets). In addition, the CMC sheet with is 100% CMC
It may be made of fibers of 100% or more, or it may be a mixed material of CMC fibers and cellulose fibers such as pulp. However, the mixing ratio of cellulose fibers is preferably 40% by weight or less.
本発明にイ９ｙ用する高吸水性樹脂としては、特開１１
７号５ Ｇ −２８７５５や＋ｉｔ開ｏＢ５ｓ−１ｏ４
９ｏ１に示し／こ部分１ゾ型化熱架１而ＣＩＶ（Ｃが非
常に適したものである。この熱架＋？Ｔｇ ＣＩＶｆ
Ｃは、第３成分としての架巴剤を全く恢用していない点
に特徴があり、このことに、応用面において一綻添Ｂ１
．格や日本ヴ１〉局方などの）、Ｉ）、 ｉ：ｉｌＪを
受けないという大きな利点になる。As the super absorbent resin used in the present invention, JP-A No. 11
No. 7 5 G-28755 and +it open oB5s-1o4
Shown in 9o1/This part 1 Zo type heating rack 1 and CIV (C is very suitable.This heating rack +?Tg CIVf
C is characterized in that it does not use any crosslinking agent as a third component.
．． It has the great advantage of not being subject to Kaku, Japanese V1〉Chopoe, etc.), I), and i:ilJ.
この熱耀８ｉ１１６Ｃ１ｖｌＣの形状については、粉末
、顆粒、短線オ、Ｗのいずれでも４？Ｉ）まわないが、
短繊維状のものＣ」：１〆ｔ 、ｐ呂１」Ｓの定置仕込
にｇｌＬ点があるだめ、粉末状またはＩ：Ｊｆｌわ７状
が好捷しい。このシト、デンプン系、アクリル酸系、１
）ＶＡ系など、最近開発されている谷神のＩ（］」吸水
性泣↑脂もｌ１９Ｚ用可能である。Regarding the shape of this heat 8i116C1vlC, is it 4 whether it is powder, granule, short line O, or W? I) I don't mind, but
Since there is a glL point in the fixed preparation of short fibrous material C':1〆t, puro1'S, powder form or I:Jfl7 form is preferable. This site, starch-based, acrylic acid-based, 1
) VA series and other recently developed Tanigami's I(]" water-absorbent ↑ fats can also be used for l19Z.
本発明に使用する市ｊ吸水性樹脂の添加量は、晶圧ρ過
に使用する場合はど多くの添加酸を要し、低圧１１．過
の場合Ｉよど少ない添加量で済むが、おおよそ１０〜１
０００ｇ／ｍ２であり、好ましくは５０−３００ｇ／１
ｌｚ２である。このａ’を加量が” ｇ ／ ｎｔ未満
では保水能力が小さく、１０００ｇ／、、＋７！を越え
ると複合シートとしての接合力が乏しく、シート強度や
形状安定性を損う。The amount of water-absorbent resin used in the present invention is determined by the amount of added acid required when using it for crystal pressure filtration, and the amount of water-absorbing resin added at low pressure 11. In the case of a
000g/m2, preferably 50-300g/1
It is lz2. If the amount of a' is less than "g/nt," the water retention capacity will be small, and if it exceeds 1000 g/, +7!, the bonding force as a composite sheet will be poor, and the sheet strength and shape stability will be impaired.
まだ、本発明に使用される残りの一成分は、パルプナト
セルロースから成る通常紙またはティッシュパルプであ
ってもよく、あるいは合成高分子から成る不織布であっ
てもよい。これは仕上り製品の風合いや着用感などを改
良するため、または高吸水性樹脂をより確実に固定する
ため、あるいは個々の用途に対応した特性をイ附与する
ために使用されるものである。Still, the remaining component used in the present invention may be a regular paper or tissue pulp made of pulp natocellulose, or a nonwoven fabric made of a synthetic polymer. This is used to improve the feel and feel of the finished product, to more securely fix the superabsorbent resin, or to impart properties suitable for individual applications.
以上の構成単位を複合して本発明の高吸水性シートを製
造する一つの方法としては、ＣＭＣ’、−トの上に熱架
橋ＣＭＣを散布し、その」−にＣＭＣシー）−あＺｒ
イ（’ｊ：、 （ルロース紙カ不織布を重ねてザンドイ
ノチ状にしたのち、水か水蒸気を散布し、ロール乾燥す
ることによってつくることができる。また、水や水蒸気
の代りにアクリル系エマルジョンや−般の水溶性高分子
の含水溶液をスプレーか、あるいは浸漬する方法でも製
造可能であり、更に機械的にエンボスロールなどで強く
固定することもできる。１／こ、各構成単位は１層のみ
と限定されず、２層、；３層と重ね合わすことも可能で
ある。One method for manufacturing the superabsorbent sheet of the present invention by combining the above-mentioned structural units is to spray thermally crosslinked CMC on CMC',
('j:, (It can be made by stacking lurose paper and non-woven fabric into a sand-like shape, spraying water or steam, and drying it by roll.Also, instead of water or steam, acrylic emulsion or - It can be manufactured by spraying or dipping a water-containing solution of a water-soluble polymer in general, and it can also be mechanically fixed firmly using an embossing roll or the like. There is no limitation, and it is also possible to stack two or three layers.
本発明の高吸水性シートの大きな特徴は、例えば含水油
類の；濾過を行なった際に、熱架治ＣＭ Ｃなとの７Ｑ
；吸水性樹脂及びＣＭ Ｃシードが水を吸収するに従い
膨潤し、フィルターとしての目を詰めてゆく傾向がみら
れることであり、本発明の高吸水性シートに吸水余力が
ある間は透液性があり、吸水余力がなくなった時点で油
類の透過を停止する機能があることである。一般に吸水
剤の、ある時点での残存吸水能力がどの程度のものであ
るかをチェックするのは簡単ではないが、本発明の高吸
水性シートにおいては、油類が透過し得る間は水の除去
が行なわれていることが保証されており、油類の透過が
停止したとき、あるいは濾過圧力が上列したとき、高吸
水性シートを更新すれば良いので非常に便利である。A major feature of the super-absorbent sheet of the present invention is that, for example, when filtering water-containing oils, the sheet can be cured by heat-curing CM C, etc.
; As the water-absorbing resin and CMC seeds absorb water, they tend to swell and close the mesh as a filter, and while the super-absorbent sheet of the present invention has water-absorbing capacity, it has liquid permeability. It has a function to stop oil permeation when there is no remaining water absorption capacity. Generally, it is not easy to check the residual water absorption capacity of a water absorbing agent at a certain point in time, but in the super absorbent sheet of the present invention, while oil can permeate, water It is very convenient because it is guaranteed that the removal is being carried out and the superabsorbent sheet can be replaced when oil permeation stops or when the filtration pressure increases.
きな特徴は、高吸水性樹脂をサンドイッチしている素材
がティソシーパルプや通常紙ではなく、高吸水性樹脂の
少なくとも片面、あるいは両面にＣＭ、Ｃし斗、を使用
しているため、高吸水性樹脂が吸水保水できなかった水
分を、とのＣＭＣレート、が迅速に吸水し、かつ保水す
る能力を有している改にあり、高圧下で急速１過操作を
行なったとしても水もれの心配は全くない。The key feature is that the material sandwiching the superabsorbent resin is not Tissoci pulp or regular paper, but CM or C Shito is used on at least one or both sides of the superabsorbent resin. The CMC rate of the water-absorbing resin has the ability to quickly absorb and retain water that could not be absorbed and retained, so even if a rapid one-pass operation is performed under high pressure, water will not be retained. There's no need to worry about that at all.
まだ、従来の吸水性素材の場合には、純水に対する吸水
、保水性が高いものであっても、少壮の塩類を含む水溶
液に対しては極端に低い吸水、保水性しか示さないこと
が大きな欠点であったが、本発明の高吸水性シートの場
合には各種の塩類を含む水溶液や血液尿に対しても高い
吸水、保水性を示すことが特徴である。However, in the case of conventional water absorbent materials, even if they have high water absorption and water retention properties for pure water, they exhibit extremely low water absorption and water retention properties for aqueous solutions containing mild salts. Although this was a drawback, the super absorbent sheet of the present invention is characterized by high water absorption and water retention even in aqueous solutions containing various salts and blood urine.
以上説明してきたように、本発明の高吸水性シートは自
動車用や航空機用の燃料をはじめ、灯油、重油、機械油
、食用油、その他一般有機溶剤などの除水、除塵用フィ
ルター素材として有用であり、また、紙おむつ、生理用
品、ベッドパッド、紙タオルなどの衛牛利料や各種使い
捨て用品の吸水性累月としても有用であり、このクト、
除湿用エアーフィルター累月、除湿シート材、食品乾燥
剤、各種防水用被覆剤などとしても使用することができ
る。As explained above, the super absorbent sheet of the present invention is useful as a filter material for removing water and dust from automobile and aircraft fuels, as well as kerosene, heavy oil, machine oil, edible oil, and other general organic solvents. It is also useful as a water-absorbent material for disposable products such as disposable diapers, sanitary products, bed pads, and paper towels.
It can also be used as a dehumidifying air filter, a dehumidifying sheet material, a food desiccant, and various waterproof coatings.
以下に実施列を挙げて本発明を説明するが、本発明瓢、
これらにより限定されるものではない。The present invention will be described below with reference to examples.
It is not limited to these.
但し、紙及びシートの基礎物はについては次の方法によ
って測定した。However, the basic materials of paper and sheets were measured by the following method.
坪 ｆｊｉ ＪＩＳ Ｐ ８］、２４
引張強度 ＪＩＳ Ｐ ８１１３
透気度 ＪＩＳ Ｐ ８１１７
厚 さ ＪＩＳ Ｐ ８］、１−８
ここで透気度については、Ｊ Ｉ Ｓによるとザンブル
：−ｉ １枚当りにつきエアー１００ｍ（！の通過時間
で１３１、定しているが、不出、顆特許では測定条件と
一部変更して透気度とはサンプル紙２枚当りにつきエア
ー３０ｏｍｌの通過時間とした。Tsubo fji JIS P 8], 24 Tensile strength JIS P 8113 Air permeability JIS P 8117 Thickness JIS P 8], 1-8 Here, regarding air permeability, according to JIS The air permeability is defined as 131 in the passage time of 100 m (!) of air, but in the Unpublished patent, the measurement conditions were partially changed and the air permeability was defined as the passage time of 30 oml of air per 2 sheets of sample paper.
実施例］
特開昭５８− Ｌ Ｏｉｌ、 ＋３０１の処方に準じて
Ｎａ型Ｄ Ｓ Ｏ，７５、酸型Ｄ Ｓ Ｏ，（＋ １の
３０〜８ｏメソシーの顆粒状ＣＭ Ｃを］、 ４００Ｃ
１月１１＝加熱処理して高吸水性樹脂０熱架橋ＣＪＶｉ
Ｃをつくった。Examples] Na-type DSO, 75, acid-type DSO, (granular CM C of 30-8o mesocy of +1) according to the prescription of JP-A-58-L Oil, +301], 400C
January 11 = Heat treated super absorbent resin 0 heat crosslinked CJVi
I made C.
一方、ＤＳｏ、４５（７１）綿状ＣＭＣ−ｆ（を水中で
離解したのち、抄紙し、予備乾燥してＣ，ＭＣ−Ｈ紙を
つくυ、これを炭酸すトリウム］０亜ｉｊｌ、％、グリ
セリン３重量％、水８７重トｄニ％がら成る浴にＶ清し
乾燥して、ＣＩＶｉＣシー１−をっくった。On the other hand, DSo, 45 (71) flocculent CMC-f (after disintegrating in water, paper-making, pre-drying to form C, MC-H paper υ, thorium carbonate] 0 nitrous ijl, %, It was rinsed in a bath consisting of 3% by weight of glycerin and 87% by weight of water and dried to obtain CIViC Sea 1-.
このＣＭＣシー）−は坪ｇ、 ７０ ｊｊ ／ ＋♂、
厚さ０１２關、透気度１０秒、引張強度２．５ ｋｇ／
幅１５ｍｍのものであった。This CMC sea) - is tsubog, 70 jj / +♂,
Thickness: 012 mm, air permeability: 10 seconds, tensile strength: 2.5 kg/
It had a width of 15 mm.
上述の熱架橋ＣＭＣをとのＣ］Ｖｉ Ｃ″−−ト２枚の
間に積層し、水蒸気を散布したのち、熱ロールで乾燥し
て吸水シートを作成し／こ。このとき熱架橋ＣＭＣの添
加量は］、 ５０９ ／イであった。The above-mentioned thermally crosslinked CMC is laminated between two sheets of C]Vi C'', and after spraying water vapor, it is dried with a hot roll to create a water absorbent sheet.At this time, the thermally crosslinked CMC The amount added was 509/i.
この積層した吸水シートは坪量２８ｏｇ／ｎＬ２、厚さ
０４朋のものであった。このシートにつぃて、軽油中の
吸水能力を測定した。その測定法としては、サンプルシ
ートを直径ｔ ４０ ｍｍの円形に切り、加圧１過器の
フィルター部にセットし、含水軽油を仕込み、エアーで
加圧して１過し、ｆｉ液液中水分を測定した。This laminated water absorbent sheet had a basis weight of 28 og/nL2 and a thickness of 0.4 mm. The water absorption capacity of this sheet in light oil was measured. The measurement method is to cut a sample sheet into a circle with a diameter of t 40 mm, set it in the filter part of a pressurizer, fill it with water-containing light oil, pressurize it with air, pass it once, and remove the moisture in the fi liquid. It was measured.
Δ−１過処理すべき軽油には、１バッチ当り軽油５００
ｍｌに水２０ｍ１！を混合したものを使用した。Δ-1 The light oil to be overtreated is 500 g of light oil per batch.
20ml of water per ml! A mixture of these was used.
この結果、エアーによるＪ−１過圧力が０．５に９／ｃ
ｒＡ以下でｄｊ過萌間が１バッチ当り１分以内で濾過は
終了した。このｊ１過後の１軽油約５００ ｍｅ中には
分離水が全く認められなかった。更にとのｄ７１過後の
軽油中の竹屑水分をカールフィッシャー法により測定し
た結果、２０ｐＰＩＩｌであった。As a result, the J-1 overpressure due to air was reduced to 0.59/c
The filtration was completed when the dj permeation time was less than rA and within 1 minute per batch. No separated water was observed in the approximately 500 me of gas oil after this j1 passage. Furthermore, the moisture content of bamboo waste in the gas oil after passing through d71 was measured by the Karl Fischer method, and it was found to be 20 pPIIl.
′ｊｊ過前の軽油中の溶解水分ば１３ （ｌ ｐｐｍで
あった。The amount of dissolved water in the gas oil before the 1990s was 13 (1 ppm).
比較例１
実施例１においてＣＭＣ＝−ト’２枚ではなく、ディソ
シーペーパー状パルプ２枚に換えて積層シートを作成し
た。Comparative Example 1 A laminated sheet was prepared in Example 1 by replacing the two sheets of CMC=-t' with two sheets of desochy paper-like pulp.
このティッシュペーパーは坪ｇ ３５ ｇ／ ｙｆ 、
厚さ０．１ ｍｍのものであった。This tissue paper weighs 35 g/yf,
The thickness was 0.1 mm.
熱架橋ＣＭＣを積層したシートについて含水軽油中の吸
水能力を測定した。The water absorption capacity in water-containing light oil was measured for a sheet in which thermally crosslinked CMC was laminated.
その結果、加圧１過時の圧力は０５に９ ／ ｃｍ以下
で濾過時間は１分以内で終了したが、そのＪｊ過後の軽
油約５００ ｒｕｅ中には分離水が杓２ ｎ（ｅ Ｋめ
られ、その軽油中の溶解水分はｉ ｏ ｏ ｒｐｍであ
った。As a result, the pressure during the first pressurization was less than 0.9 cm and the filtration time was completed within 1 minute. , the dissolved water in the gas oil was i o o rpm.
実施例２
実施例１の吸水シートを加圧濾過器に七ノドし、処理す
べきオイルとしてダフニーオイルガ６５６（出光興産製
潤滑油）５００ｍｌを用いた。Example 2 The water-absorbing sheet of Example 1 was filtered into a pressure filter, and 500 ml of Daphne Oil Ga 656 (lubricating oil manufactured by Idemitsu Kosan) was used as the oil to be treated.
濾過処理前のダンニーオイル中のｉＪ Ｍ’Ｆ水分は２
０随であったが、処理後には溶解水分が０．４ ｐＨｍ
となった。The iJ M'F water content in Dunnie oil before filtration is 2.
However, after treatment, the dissolved water decreased to 0.4 pHm.
It became.
実施例３
実施例１の吸水シートを加圧１過器にセットし、処理す
べきオイルとして家庭用サラダオイル（日清製油製）
５００７１１に水１０ｍ／添Ｄｏしたものを用いた。そ
の結果、濾過処理後のサラダオイル中には分離水が全く
認められなかった。Example 3 The water-absorbing sheet of Example 1 was set in a pressure filter, and household salad oil (manufactured by Nisshin Oil Co., Ltd.) was used as the oil to be treated.
500711 to which 10 m/do of water was added was used. As a result, no separated water was observed in the salad oil after filtration.
実施例４
実施例］の吸水シートを加圧ｉＡ通過器セットし、処理
すべき有磯溶剤としてメチルイソブチルケトン５ （１
０ｍｌに水１０ｍｅ添加したものを用いた。その結果、
濾過処理後のメチルイソブチルケトン中には分ｉ！７１
１１水が全く認められなかった。Example 4 The water absorption sheet of Example] was set in a pressurized iA passer, and methyl isobutyl ketone 5 (1
A solution prepared by adding 10 me of water to 0 ml was used. the result,
After filtration, methyl isobutyl ketone contains 1. 71
No. 11 Water was not observed at all.
実施例５
実施例１において、ＣＭＣレート の間に熱架１１：ｊ
ＣＭ Ｃを” Ｏｇ ／ ｎｆＡｆｉ層したシートを
作成し、１山峡実施例１と同様に含水軽油中の吸水能力
を測定した。その結果 ｉｔ’ 、過処理後の軽油中に
は分１俯水が全く認められず、更にその軽油中の箔！’
イ水分ばＬＯｉ’ｌ’ｌｌｌであった。Example 5 In Example 1, a thermal rack 11:j is placed between the CMC rates.
A sheet with a layer of CM C of "Og/nfAfi" was prepared, and its water absorption capacity in water-containing light oil was measured in the same manner as in Example 1. As a result, it was found that the light oil after overtreatment had a water content of 1%. It's completely unacceptable, and even more so, the foil in the diesel oil!'
The water was LOi'l'llll.
実施例〔；
実施例１の吸水シートを加圧１過器にセットし、■バッ
チ目の分子ニーｊｆＥ水２０ｍｅを含む軽油５００ｍ１
を実力布例１に記述した濾過圧力及びｉｌコ過待時間終
了したのち、引、玩き同一シートに対し、２バツチ目の
水２０ ｍｅを含む軽油５００ ｒｕｅを１過しだ。こ
のときの濾過圧もＯ” ｋｇ ／ ｃ＋Ｍ以下であり、
濾過時間も１分以内で終了し、沢過後の軽油中に分離水
は全く認められなかった。更に引続き同一シートに対し
、３バツチ目の水２０ｍ１！を含む軽油５００ｍ１を仕
込み、１過しようとしだところ、１過圧力を３ｋｇ／ｃ
、Ａに」二げても全く濾過できなかった。Example [; The water-absorbing sheet of Example 1 was set in a pressure vessel, and 500 ml of light oil containing 20 me of molecular knee jfE water was added to the second batch.
After completing the filtration pressure and waiting time described in Example 1, a second batch of 500 rue of light oil containing 20 me of water was passed through the same sheet. The filtration pressure at this time is also less than O" kg/c+M,
The filtration time was completed within 1 minute, and no separated water was observed in the gas oil after filtration. Furthermore, the third batch of 20ml of water was added to the same sheet! When 500ml of light oil containing gas was charged and about to undergo one overpressure, the overpressure was increased to 3kg/c.
, to A.'' Even if I tried twice, I couldn't filter it at all.
このことは、熱架橋ＣｉＶＩ Ｃ及びｃ ｉｖｒ ｃ
レートが飽和吸水量に達したため、膨イ１ａｌによりフ
ィルターの目を詰まらせ、軽油自体の透過を停止する機
能のあることを示していた。This means that thermally crosslinked CiVI C and c ivr c
As the water absorption rate reached the saturated water absorption amount, the swelling 1al clogged the filter, indicating that it had the function of stopping the light oil itself from permeating.
実施例７
実施例１において、ＣＭＣ−、−ａ−２枚ではなく、Ｃ
Ｍ、 Ｃシー１−．．１枚と、比較例１のティッシュペ
ーパー１枚の間に熱架）ｆｊ ＣＭＣを積層して吸水シ
ートを作成した。この吸水シートの吸水能力を同僅にｊ
ｌｌｌ定した結果、加圧′ｊ１過処哩した軽油中には分
離水が全く認められず、更にその軽油中の溶解水分は２
７１’ｌ！Ｉｎであった。Example 7 In Example 1, instead of CMC-, -a-2 sheets, C
M, C Sea 1-. ．． A water-absorbing sheet was prepared by laminating fj CMC on a thermal rack between one sheet of tissue paper and one sheet of tissue paper of Comparative Example 1. The water absorption capacity of this water absorption sheet is
As a result of the determination, no separated water was observed in the pressurized gas oil, and the amount of dissolved water in the gas oil was 2.
71'l! It was In.
実施例８
実施例１の吸水シートについて、以下の方法で純水及び
１％食塩水に対する吸液能力を測定した。２０ Ｘ ２
０ Ｉｎｎ角に切ったシートを２００ｍ１の、陣水捷た
は１％食Ｊｌｉｉｉｉ水に室温下３０分間浸漬し、ゆっ
くり（ｄ拌したのち金網付き遠心沈降管に移して遠心分
配を行なった。この遠沈管には、その内側に８０メツシ
ーの金網（直径２５朋、高さＧ Ｏｍｍの円筒状）が七
ノトシてあり、遠心中に流出する液がザンプルから分離
されるようにしたものである。遠心効果５００Ｇにて５
分間、遠心分離したのち、金網上に残っているザンプル
の重’７ｉｉ： （Ｗ １ ）を測定し、］０５°Ｃに
て乾燥したのちの把乾重量（Ｗ２）を測定しｌ −Ｗ２
て遠心保液率（−−−−〜ヮ、−−）をめた。Example 8 Regarding the water-absorbing sheet of Example 1, the liquid-absorbing ability for pure water and 1% saline was measured by the following method. 20 x 2
The sheet cut into 0 Inn squares was immersed in 200 ml of Jinsui Kaku or 1% saline Jliii water for 30 minutes at room temperature, stirred slowly, and then transferred to a centrifugal sedimentation tube with a wire mesh for centrifugal distribution. The centrifuge tube had seven 80 mesh wire meshes (cylindrical shape with a diameter of 25 mm and a height of G 0 mm) inside the tube so that the liquid flowing out during centrifugation was separated from the sample. 5 at centrifugal effect 500G
After centrifugation for 1 minute, the weight of the sample remaining on the wire mesh was measured (W1), and after drying at 05°C, the dry weight (W2) was measured. The centrifugal liquid retention rate (-----~ヮ, --) was calculated.
この結果、実施例１の吸水シートの遠心保液率は、純水
の場合が２１０倍、１％食塩水の場合が７０倍であった
。As a result, the centrifugal liquid retention rate of the water-absorbing sheet of Example 1 was 210 times higher in the case of pure water and 70 times higher in the case of 1% saline solution.
比較例ソ
実施例８との比較のため、市販の高吸収性樹ュペーハー
の間に積ノーしたシートについて、実施例８の方法で吸
液能力を測定した。このシートの坪量（添加量）は実施
例８の吸水シートと同一のものにした。Comparative Example For comparison with Example 8, the liquid absorption capacity of a sheet stacked between commercially available super absorbent paper sheets was measured by the method of Example 8. The basis weight (addition amount) of this sheet was the same as that of the water absorbent sheet of Example 8.
この結果、この比較シートの遠心保液率は純水の鴨合が
１８０倍、１％食塩水の場合が１３倍であった。As a result, the centrifugal liquid retention rate of this comparative sheet was 180 times higher for pure water and 13 times higher for 1% saline.
ｑ寺許出７顆人 ダイセル化学工業株式会社qTemple Kyoude 7 people Daicel Chemical Industries, Ltd.
Claims (1)
であって、そのシート状物質の少なくとも］枚がカルボ
キシメチルセルロースアルカリ金属塩からなるシートで
あることを特徴とする高吸収性シート。1. A composite sheet comprising a superabsorbent resin laminated between sheet-like materials, wherein at least one of the sheet-like materials is a sheet made of carboxymethyl cellulose alkali metal salt.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58245776A JPS60141551A (en) | 1983-12-29 | 1983-12-29 | High absorptive sheet |
| FI845138A FI84621C (en) | 1983-12-29 | 1984-12-27 | Dehydraticeringsförfarande |
| DE8484116447T DE3482164D1 (en) | 1983-12-29 | 1984-12-28 | WATER DEPTH METHOD. |
| EP84116447A EP0149251B1 (en) | 1983-12-29 | 1984-12-28 | Dehydrating method |
| US06/687,303 US4584092A (en) | 1983-12-29 | 1984-12-28 | Dehydrating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58245776A JPS60141551A (en) | 1983-12-29 | 1983-12-29 | High absorptive sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60141551A true JPS60141551A (en) | 1985-07-26 |
| JPH0254780B2 JPH0254780B2 (en) | 1990-11-22 |
Family
ID=17138643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58245776A Granted JPS60141551A (en) | 1983-12-29 | 1983-12-29 | High absorptive sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60141551A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6218127U (en) * | 1985-07-18 | 1987-02-03 | ||
| JPS62131819U (en) * | 1986-02-14 | 1987-08-20 | ||
| JPS63139741A (en) * | 1986-12-02 | 1988-06-11 | 白十字株式会社 | Water-absorbing sheet |
| JPH0191861A (en) * | 1987-04-03 | 1989-04-11 | Takeshi Karita | Method and member for removing moisture from surface of wound |
| JPH05132661A (en) * | 1991-11-12 | 1993-05-28 | Kyoei Sangyo Kk | Composition for supplying water to animal tissue or plant |
| JP2006337313A (en) * | 2005-06-06 | 2006-12-14 | Saginomiya Seisakusho Inc | Ultrasonic flowmeter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200423195A (en) | 2002-11-28 | 2004-11-01 | Tokyo Electron Ltd | Internal member of a plasma processing vessel |
-
1983
- 1983-12-29 JP JP58245776A patent/JPS60141551A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6218127U (en) * | 1985-07-18 | 1987-02-03 | ||
| JPS62131819U (en) * | 1986-02-14 | 1987-08-20 | ||
| JPH0453940Y2 (en) * | 1986-02-14 | 1992-12-18 | ||
| JPS63139741A (en) * | 1986-12-02 | 1988-06-11 | 白十字株式会社 | Water-absorbing sheet |
| JPH0191861A (en) * | 1987-04-03 | 1989-04-11 | Takeshi Karita | Method and member for removing moisture from surface of wound |
| JPH05132661A (en) * | 1991-11-12 | 1993-05-28 | Kyoei Sangyo Kk | Composition for supplying water to animal tissue or plant |
| JP2006337313A (en) * | 2005-06-06 | 2006-12-14 | Saginomiya Seisakusho Inc | Ultrasonic flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0254780B2 (en) | 1990-11-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2765226C (en) | Superabsorbent cellulosic fiber and method of making same | |
| US4584092A (en) | Dehydrating method | |
| US6706944B2 (en) | Absorbent materials having improved absorbent properties | |
| RU2129629C1 (en) | Defibrated cellulose product, absorbing pads and method of producing defibrated cellulose product | |
| US20080082067A1 (en) | Cellulose fibers having superabsorbent particles adhered thereto | |
| AU2018307482B2 (en) | Feminine care absorbent article containing nanoporous superabsorbent particles | |
| RU96100765A (en) | FIBER-BASED CELLULOSE PRODUCT, ABSORPTIVE GASKETS AND METHOD FOR PRODUCING SUCH PRODUCT | |
| JPS60141551A (en) | High absorptive sheet | |
| GB1569336A (en) | Absorbent procuct and its use in sanitary articles | |
| AU5613700A (en) | Polyvinylidene difluoride membranes and methods for making such membranes | |
| KR102429963B1 (en) | A material that contracts in one dimension and expands in another | |
| US20050142965A1 (en) | Surface charge manipulation for improved fluid intake rates of absorbent composites | |
| JP3722550B2 (en) | Absorbent articles | |
| JPS61160483A (en) | Absorbable nonwoven web | |
| JP5596526B2 (en) | Composition for water absorption modification of water absorbent resin particles | |
| AU2002365371B2 (en) | New absorbent product | |
| JP3038404B2 (en) | Removal method of oil mixed in water-soluble cutting fluid | |
| US20230049825A1 (en) | Superabsorbent polymer and method of producing the same | |
| JPH03269144A (en) | Highly water-absorptive nonwoven sheet | |
| JPS60143804A (en) | Dehydrating method | |
| JPH08291455A (en) | Production of absorbing member | |
| JPH08269869A (en) | Production of cellulose fiber and absorptive structural product using the same | |
| RU2007146443A (en) | ABSORBING COMPOSITE MATERIAL AND METHOD OF ITS PRODUCTION | |
| JPS61133107A (en) | Dehydrating method | |
| JPH01145061A (en) | Absorbable article |