JPH01164436A - Highly water-absorptive base material to be used in aqueous solution of electrolyte - Google Patents
Highly water-absorptive base material to be used in aqueous solution of electrolyteInfo
- Publication number
- JPH01164436A JPH01164436A JP62324876A JP32487687A JPH01164436A JP H01164436 A JPH01164436 A JP H01164436A JP 62324876 A JP62324876 A JP 62324876A JP 32487687 A JP32487687 A JP 32487687A JP H01164436 A JPH01164436 A JP H01164436A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- highly water
- electrolyte
- water
- exchange resin
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 36
- 239000003792 electrolyte Substances 0.000 title claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 title claims description 15
- 239000000835 fiber Substances 0.000 claims abstract description 13
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 13
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003456 ion exchange resin Substances 0.000 claims abstract description 5
- 229920003303 ion-exchange polymer Polymers 0.000 claims abstract description 5
- 239000002250 absorbent Substances 0.000 claims description 36
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000004745 nonwoven fabric Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 7
- 238000005342 ion exchange Methods 0.000 claims description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- 229910019142 PO4 Inorganic materials 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 38
- 238000010521 absorption reaction Methods 0.000 abstract description 23
- 239000003729 cation exchange resin Substances 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 5
- 239000003957 anion exchange resin Substances 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 230000002745 absorbent Effects 0.000 description 28
- 229910021645 metal ion Inorganic materials 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 3
- 229940047670 sodium acrylate Drugs 0.000 description 3
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- -1 potassium cations Chemical class 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229940048053 acrylate Drugs 0.000 description 1
- 239000011013 aquamarine Substances 0.000 description 1
- 239000003212 astringent agent Substances 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NPERTKSDHFSDLC-UHFFFAOYSA-N ethenol;prop-2-enoic acid Chemical compound OC=C.OC(=O)C=C NPERTKSDHFSDLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000021148 sequestering of metal ion Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は紙オムツ、生理用ナプキン、海底ケーブル等の
走水防止等に使用される電解質水溶ｉＣＣ出用高吸水性
基材改良に関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to the improvement of superabsorbent base materials for discharging electrolyte water-soluble iCC used for preventing water running in disposable diapers, sanitary napkins, submarine cables, etc. be.
現在、紙オムツ、生理用ナプキン等多くの分野で使用さ
れている高吸水性樹脂、高吸水性繊維等の高吸水性素材
は一般に１ｇ当り５００ｇ〜１ｏｏｏ ｇの純水を吸水
する。しかるに血液、海水等の電解質水溶液では、吸水
率が純水の場合の約ｌ／１０〜１／２０に低下する。即
ち生理食塩水（０，９％ＮａＣβ水溶欣）では５０〜８
０ｇシか吸水しなくなる。これがため、電解質水７８ｉ
αの吸水においては高吸水性樹脂、高吸水性繊維等の高
吸水性素材の′ｉ！ｉ切なる使用量の推定が困難であり
、必然的に使用量か多くなるという問題点がある。特に
この傾向は代表的な高吸水性樹脂であるアクリル酸ソー
ダ車合体において最も顕著である。Super absorbent materials such as super absorbent resins and super absorbent fibers currently used in many fields such as disposable diapers and sanitary napkins generally absorb 500 g to 100 g of pure water per gram. However, in electrolyte aqueous solutions such as blood and seawater, the water absorption rate is reduced to about 1/10 to 1/20 of that of pure water. That is, in physiological saline (0.9% NaCβ aqueous solution), it is 50-8
It stops absorbing water at 0g. Because of this, electrolyte water 78i
Regarding the water absorption of α, the ′i! of highly absorbent materials such as super absorbent resins and super absorbent fibers There is a problem that it is difficult to estimate the exact usage amount, and the usage amount inevitably increases. In particular, this tendency is most remarkable in the case of sodium acrylate vehicle combination, which is a typical super absorbent resin.
本発明は上記の問題点を解消するものであり、高吸水性
素材に対し、５乃至１５０屯量％のイオン封鎖性を有す
るビルダーあるいはイオン交換能を有する物質を、該高
吸水性素材の内部或は表面に含有、付着せしめることに
よって、上記問題点を解決したものである。即ち、高吸
水性素材として例えばアクリル酸ソーダ重合体、アクリ
ル酸ビニルアルコール共重合体、ポリエチレンオキサイ
ド変成物等の高吸水性樹脂が高い吸水能力を発側するの
はポリマー鎖に付属するカルボキシル基の負電荷が示す
吸引力によって可動イオンである例えばナトリウムやカ
リウム陽イオンの濃度は高吸水性樹脂の外１！！１より
も内側で常に高いために浸透圧が発生するものであり、
また高分子電解質と水とのＩＩ ｆロカによるものであ
る。The present invention solves the above-mentioned problems by adding a builder having an ion-sequestering property or a substance having an ion-exchange ability to a superabsorbent material in an amount of 5 to 150 tonne inside the superabsorbent material. Alternatively, the above problems can be solved by containing or adhering it to the surface. In other words, the reason why superabsorbent resins such as superabsorbent materials such as sodium acrylate polymer, vinyl alcohol acrylate copolymer, and polyethylene oxide modified products exhibit high water absorption ability is due to the carboxyl groups attached to the polymer chains. Due to the attractive force of negative charges, the concentration of mobile ions such as sodium and potassium cations is higher than that of super absorbent resins! ! Osmotic pressure occurs because it is always higher inside than 1,
It is also due to the II f loca of polymer electrolyte and water.
然るに電解質水溶液中の電解質濃度が高い場合は浸透圧
が小さくなり、また高分子電解質の親和力も小さくなる
ため、電解質含有水溶液では高吸水性樹脂の吸水能力が
低下することになる。従って本発明はこの電解質水溶液
を高吸水性樹脂に接触吸収させるに当り、イオン封鎖性
を有するビルダー例えばトリポリリン酸ソーダ、ビロリ
ン酸ソーダ、ヘキサメタリン酸ソーダ、ビロリン酸カリ
、ケイ酸ナトリウム、ＥＤＴＡ（エチレンジアミン４酢
酸２ナトリウム）等を用いることにより、水中のカルシ
ウムイオン、マグネシウムイオン、鉄イオン等の金属イ
オンと会合或は共有結合により錯化合を形成させ、金属
イオンを封鎖することにより高吸水性素材の吸水能力の
低下を防止するか、又はイオン交換能を有する物質とし
て強酸性陽イオン交換樹脂と伽塩基性陰イオン交換樹脂
とを共に用いるか、合成ゼオライトにより金属イオンを
吸着分離することにより、電解質水２８液中における高
吸水性素材の吸水性能を改善せしめたものである。However, if the electrolyte concentration in the electrolyte aqueous solution is high, the osmotic pressure will be low and the affinity of the polymer electrolyte will also be low, so the water absorption ability of the superabsorbent resin will be reduced in the electrolyte-containing aqueous solution. Therefore, in the present invention, when contacting and absorbing this electrolyte aqueous solution into a superabsorbent resin, builders having ion-sequestering properties such as sodium tripolyphosphate, sodium birophosphate, sodium hexametaphosphate, potassium birophosphate, sodium silicate, EDTA (ethylenediamine 4 By using sodium acetate (disodium acetate), etc., a complex compound is formed by association or covalent bonding with metal ions such as calcium ions, magnesium ions, iron ions, etc. in water, and the water absorption of super absorbent materials is achieved by sequestering metal ions. Electrolyte water can be improved by preventing a decrease in capacity, by using both a strongly acidic cation exchange resin and a basic anion exchange resin as substances with ion exchange ability, or by adsorbing and separating metal ions with synthetic zeolite. The water absorption performance of the super absorbent material in liquid No. 28 has been improved.
高吸水性樹脂の近傍にビルダーが存在する時は被吸水性
渋体となる電解質水溶液の金属イオンは、まずビルダー
として用いられる例えばトリポリリン酸塩と会合或は共
有結合により錯化物を形成し、その俊に高吸水性樹脂の
ポリマー頂に付属するカルボキシル基の負電荷が示す吸
引力によって高吸水性樹脂に吸水される。即ち電解Ｕ水
溶液中のＣａ、Ｍｇ、Ｆｅ等の金属イオンはビルダーの
金属イオン封鎖性によって錯体化され、またビルダーに
は緩衝作用があり電解質のイオンの影響を軽減すること
により吸水率の低下が改善されるものである。When a builder is present near the superabsorbent resin, the metal ions in the electrolyte aqueous solution, which become water-absorbing astringents, first form a complex with, for example, tripolyphosphate, which is used as a builder, through association or covalent bonding. Water is quickly absorbed by the superabsorbent resin due to the suction force exhibited by the negative charge of the carboxyl group attached to the polymer top of the superabsorbent resin. That is, metal ions such as Ca, Mg, and Fe in the electrolytic U aqueous solution are complexed by the metal ion sequestering property of the builder, and the builder has a buffering effect, reducing the effect of electrolyte ions and reducing the water absorption rate. It will be improved.
以下本発明の１実施例を詳細に説明する。 One embodiment of the present invention will be described in detail below.
〔実施例１〕
第１図は本発明に係る高吸水性基材の概略構成断面図で
あり、上、中、下の三層よりなり、上層１及び下層２は
高吸水性繊維（登録商標ランシールＦ＝日本エクスラン
工業製）７デニール Ｘ ５１關；５０％、低融点ポ
リエステル繊維４デニール×５１ｇ＋ｓ ； ５０％の
混合比率からなる目付各々１０ｇ／腸２のパラレル又は
クロスウェブよりなる。中間層３は吸水性繊ｉｔ （登
録商標ランシールＦ＝日本エクスラン工業製）７デニー
ル Ｘ ５１ｍｍ ； ９５％、低融点ポリエステル
繊維４デニール ｘ ５１關；５％の混合比率よりな
る目付６０ｇ／ｍ２のパラレル又はクロスウェブよりな
り、加熱ロールで一体に接着された目付８０ｇ／ｍ２、
厚さ０．４ｍ の高吸水性不織布である。[Example 1] FIG. 1 is a schematic cross-sectional view of the superabsorbent base material according to the present invention, which is composed of three layers: upper, middle, and lower. Upper layer 1 and lower layer 2 are made of superabsorbent fibers (registered trademark). Lanseal F (manufactured by Nippon Exlan Kogyo) 7 denier The middle layer 3 is made of water-absorbing fiber IT (registered trademark Lanseal F, manufactured by Nippon Exlan Kogyo), 7 denier x 51 mm; 95%, and a parallel fabric with a basis weight of 60 g/m2, consisting of a mixture ratio of low melting point polyester fiber 4 denier x 51 mm; 5%. Or a cross web with a fabric weight of 80 g/m2, glued together with a heating roll,
It is a super absorbent nonwoven fabric with a thickness of 0.4 m.
上記不織布にビルダーとしてトリポリリン酸ソーダの１
０％水溶液を散布又は含浸により通用し、熱風乾燥せし
めて表面にビルダー４を付着させた高吸水性基材Ａを構
成する。1 of sodium tripolyphosphate as a builder to the above nonwoven fabric.
A superabsorbent base material A is prepared by spraying or impregnating with a 0% aqueous solution and drying with hot air to adhere builder 4 to the surface.
この高吸水性基材を用いて次の試験方法により吸水テス
トを実施した。また比較例として上記高吸水性不織布と
構成が同一でビルダーを含有しない吸水性不織布Ｂを用
い同様に比較テストを行った。A water absorption test was conducted using this super absorbent base material according to the following test method. Further, as a comparative example, a similar comparative test was conducted using water absorbent nonwoven fabric B, which has the same structure as the above-mentioned super absorbent nonwoven fabric and does not contain a builder.
試験方ｉ１ ： １０ｃ＋ｓ角のサンプルを１％塩化ナ
トリウム水溶液に１０分間浸漬後、正四角形の一角を保
持してつり下げ１分間水切りｉ＆ ｆ！ ｂｔ増加率と
厚さ増加率を測定する。Test method i1: After immersing a 10c+s square sample in a 1% sodium chloride aqueous solution for 10 minutes, hang it by holding one corner of the square and drain for 1 minute. Measure bt increase rate and thickness increase rate.
吸水テストの結果は第２図に示す通り本発明の高吸水性
基材Ａはビルダー（トリポリリン酸ソーダ）のＴｆ在し
ない吸水性不織布已に比べ吸水率が向上し、トリポリリ
ン酸ソーダ鼠が略２３ｇ／ｍ２でピークに達し、約５０
％吸水下が向上した。As shown in Figure 2, the results of the water absorption test show that the superabsorbent base material A of the present invention has an improved water absorption rate compared to the water absorbent nonwoven fabric that does not contain Tf of the builder (sodium tripolyphosphate), and has a sodium tripolyphosphate concentration of approximately 23 g. /m2, reaching a peak at about 50
% water absorption improved.
〔実施例２〕
高吸水性樹脂スミカゲルＮ−１００（住友化学製アクリ
ル酸ソーダ重合体）と粉末状のビルダー（トリポリリン
酸ソーダ）を所定量とり均一混合を行い、高親水性又は
高吸水性繊維を用いた不織布の層間に封入して高吸水性
基材Ａ＠−構成する。[Example 2] A predetermined amount of super absorbent resin Sumikagel N-100 (sodium acrylate polymer manufactured by Sumitomo Chemical) and powdered builder (sodium tripolyphosphate) are taken and mixed uniformly to form highly hydrophilic or super absorbent fibers. A highly water-absorbent base material A@- is constructed by enclosing it between layers of a nonwoven fabric using.
この高吸水性基材を１％塩化ナトリウム水溶液にｌＯ分
間？！漬後、１分間つり下げて水切り佳、重量増加率を
測定した。結果は第３図に示す通り、本発明の高吸水性
基材Ａは高吸水性樹脂のみＢに比へて吸水率が向上し、
高吸水性樹脂に対するトリポリリン酸ソーダの重置比率
（ｚ）が約５０％でピークを示し、吸水率が向上した。This super absorbent base material was soaked in a 1% sodium chloride aqueous solution for 10 minutes? ! After soaking, the samples were hung for 1 minute to measure water drainage and weight increase rate. As shown in FIG. 3, the results show that the super-absorbent base material A of the present invention has improved water absorption compared to the super-absorbent resin B.
The superposition ratio (z) of sodium tripolyphosphate to the superabsorbent resin reached a peak at about 50%, and the water absorption rate improved.
〔実施例３〕
実施例１と同様に構成される不織布に於て第４図に示す
ように中間層３の繊維層に、イオン交換樹脂５としてデ
ュオライトＣ−２０（陽イオン交換樹脂５Ｂ；住友化学
製）又は該陽イオン交換樹脂とデュオライトＡ −１０
１０（１１１イオン交換樹脂５Ａ；住友化学製）を繊維
間に均一に充填分布せしめ熱ロールで一体に形成した目
は８０ｇ／Ｂ２以上、ｌフさ０ 、４ ｍｍ の陽イオ
ン交換樹脂のみを混在せしめた高吸水性基材Ａつと陽イ
オン交換１！（脂と陰イオン交換樹脂を１：２の割合で
混入した高吸水性基材Ａｉを作成した。[Example 3] In a nonwoven fabric constructed in the same manner as in Example 1, as shown in FIG. 4, Duolite C-20 (cation exchange resin 5B; manufactured by Sumitomo Chemical) or the cation exchange resin and Duolite A-10
10 (111 ion exchange resin 5A; manufactured by Sumitomo Chemical) was uniformly filled and distributed between the fibers, and the mesh formed integrally with a hot roll was 80 g/B2 or more, and only cation exchange resin with a l width of 0 and 4 mm was mixed. Highly absorbent base material A and cation exchange 1! (A superabsorbent base material Ai was prepared in which fat and anion exchange resin were mixed in a ratio of 1:2.
上記高吸水性基材を実施例１と同様にして吸水テストを
実施した結果を第５図に示した。A water absorption test was conducted on the highly water absorbent base material in the same manner as in Example 1, and the results are shown in FIG.
図に示す如く本発明の高吸水性基材Ａ Ｌ 、 Ａ ａ
は、上記高吸水性不織布と繊維構成が同一てイオン交換
（Δ（脂の含有しない比較例Ｂに比へ、ビルダーの使用
機増加に伴って吸水ぷが増加することがｔｉＩ！認され
た。As shown in the figure, the super absorbent base materials A L and A a of the present invention
The fiber structure of the super absorbent nonwoven fabric was the same as that of the above-mentioned super absorbent nonwoven fabric, and it was found that the water absorption rate increased as the number of machines used by the builder increased compared to Comparative Example B, which did not contain fat.
〔実 ｈ筐 １列 ４ 〕
実施ρす】と同様の不縁（Ｉ＋を使って、同様の方ｌ去
でトリポリリン酸ソーダを１１着させて高吸水性基材Ａ
を構成し、その後、人工調水（舎Ｈ商標アクアマリン＝
へ州薬品（＋ワ）の吸水テストを同様の方法で実施した
。[Actual case 1 row 4] In the same way as in [Implemented] (using I+, 11 layers of sodium tripolyphosphate were applied in the same manner as above) to form a highly water-absorbent substrate A.
After that, artificially prepared water (shah trademark aquamarine =
A water absorption test of Heshu medicine (+Wa) was conducted in the same manner.
吸水テストの結果を第６図に示す。第６藺においてトリ
ポリリン酸ソーダを付着した高吸水性基材Ａと未処理の
不織布Ｂどの人工海水の吸水率を比較すると、高吸水性
基材Ａの吸水率が向上し、トリポリリン酸量が約１００
ｇ／ｍ２でピークに達し、約１４０％の改善が見られた
。The results of the water absorption test are shown in Figure 6. Comparing the water absorption rates of artificial seawater between superabsorbent base material A to which sodium tripolyphosphate was attached and untreated nonwoven fabric B in the sixth step, the water absorption rate of superabsorbent base material A was improved, and the amount of tripolyphosphate was approximately 100
g/m2, an improvement of approximately 140%.
上記の如く本発明によれば、高吸水性素材にイオン封鎖
性を有するビルダー、或はイオン交換樹脂等を含有、付
着することによって高吸水性素材の電解員水溶波の吸水
率を１１３２０％〜７０％向上させることが可能となっ
た。従って紙オムツ、生理用ナプキン、失禁用吸収パッ
ド、海底ケーブル等に用いる高吸水性素材の絶対使用量
を低減させることが可能となり、吸水能力が向上する等
の効果を有する発明である。As described above, according to the present invention, by containing and adhering a builder having ion-sequestering properties or an ion exchange resin, etc. to the super absorbent material, the water absorption rate of electrolyte water waves of the super absorbent material can be increased from 11,320% to 11,320%. It became possible to improve it by 70%. Therefore, it is possible to reduce the absolute amount of highly absorbent materials used in disposable diapers, sanitary napkins, incontinence absorbent pads, submarine cables, etc., and this invention has the effect of improving water absorption capacity.
第１図及び第４図は夫々本発明に係る高吸水性基材の１
例を示す概略構成断面図、第２図、第３図、第５図及び
第６図は夫々本発明と比較例との吸水率の測定値を示す
曲線図である。
１・・・上層
２・・・下層
３・・・中間層
４・・・ビルダー（トリポリリン酸゛ノーダ）５Ａ・・
・陰イオン交換樹脂
５Ｂ・・・陽イオン交換樹脂
第１図
第２図
トリ本°す１ル酸ソーダ＋、ｉｔ （９／ｒｎ”）第
３図
第４図FIG. 1 and FIG. 4 respectively show one example of a super absorbent base material according to the present invention.
A schematic cross-sectional view showing an example, and FIGS. 2, 3, 5, and 6 are curve diagrams showing measured values of water absorption of the present invention and a comparative example, respectively. 1... Upper layer 2... Lower layer 3... Middle layer 4... Builder (tripolyphosphate node) 5A...
・Anion exchange resin 5B...Cation exchange resin Figure 1 Figure 2
Claims (4)
性を有するビルダーあるいはイオン交換能を有する物質
を含有、付着せしめたことを特徴とする電解質水溶液用
高吸水性基材。(1) A highly water-absorbent base material for an electrolyte aqueous solution, characterized in that a builder having an ion-sequestering property or a substance having an ion-exchange ability is contained and adhered to the interior or surface of the super-absorbent material.
あるいは高吸水性又は高親水性繊維より成る不織布を用
いてなる特許請求の範囲第１項記載の電解質水溶液用高
吸水性基材。(2) A superabsorbent base material for an electrolyte aqueous solution according to claim 1, which uses a superabsorbent resin, a superabsorbent fiber, or a nonwoven fabric made of a superabsorbent or highly hydrophilic fiber as the superabsorbent material. .
リポリリン酸ソーダを用いてなる特許請求の範囲第１項
記載の電解質水溶液用高吸水性基材。(3) The highly water-absorbent base material for an electrolyte aqueous solution according to claim 1, which uses a phosphate, a silicate, EDTA, or sodium tripolyphosphate as a builder.
ゼオライトである特許請求の範囲第１項記載の電解質水
溶液用高吸水性基材。(4) The substance with ion exchange ability is an ion exchange resin,
The highly water-absorbent base material for an electrolyte aqueous solution according to claim 1, which is a zeolite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62324876A JPH01164436A (en) | 1987-12-21 | 1987-12-21 | Highly water-absorptive base material to be used in aqueous solution of electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62324876A JPH01164436A (en) | 1987-12-21 | 1987-12-21 | Highly water-absorptive base material to be used in aqueous solution of electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01164436A true JPH01164436A (en) | 1989-06-28 |
Family
ID=18170622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62324876A Pending JPH01164436A (en) | 1987-12-21 | 1987-12-21 | Highly water-absorptive base material to be used in aqueous solution of electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01164436A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07116192A (en) * | 1993-10-20 | 1995-05-09 | Koyo:Kk | Inner wing type disposable diaper |
| WO1996019539A1 (en) * | 1994-12-22 | 1996-06-27 | Uni-Charm Corporation | Deodorant resin composition and process for production thereof |
| US7994242B2 (en) | 2007-04-04 | 2011-08-09 | The Procter & Gamble Company | Material for acquisition of liquids and disposable absorbent article comprising the material |
| EP3711957A1 (en) * | 2019-03-18 | 2020-09-23 | Seiko Epson Corporation | Liquid absorber, liquid absorbing unit, and liquid ejection apparatus |
| CN111971181A (en) * | 2018-03-27 | 2020-11-20 | 精工爱普生株式会社 | Ink absorbing material, ink absorber, and liquid droplet ejecting apparatus |
-
1987
- 1987-12-21 JP JP62324876A patent/JPH01164436A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07116192A (en) * | 1993-10-20 | 1995-05-09 | Koyo:Kk | Inner wing type disposable diaper |
| WO1996019539A1 (en) * | 1994-12-22 | 1996-06-27 | Uni-Charm Corporation | Deodorant resin composition and process for production thereof |
| US5980879A (en) * | 1994-12-22 | 1999-11-09 | Uni-Charm Corporation | Deodorant resin composition and process for production thereof |
| US7994242B2 (en) | 2007-04-04 | 2011-08-09 | The Procter & Gamble Company | Material for acquisition of liquids and disposable absorbent article comprising the material |
| US8258211B2 (en) | 2007-04-04 | 2012-09-04 | The Procter & Gamble Company | Process for making material for acquisition of liquids and disposable absorbent article comprising the material |
| CN111971181A (en) * | 2018-03-27 | 2020-11-20 | 精工爱普生株式会社 | Ink absorbing material, ink absorber, and liquid droplet ejecting apparatus |
| EP3711957A1 (en) * | 2019-03-18 | 2020-09-23 | Seiko Epson Corporation | Liquid absorber, liquid absorbing unit, and liquid ejection apparatus |
| CN111703202A (en) * | 2019-03-18 | 2020-09-25 | 精工爱普生株式会社 | Liquid absorber, and liquid ejecting apparatus |
| US11059294B2 (en) | 2019-03-18 | 2021-07-13 | Seiko Epson Corporation | Liquid absorber, liquid absorbing unit, and liquid ejection apparatus |
| CN111703202B (en) * | 2019-03-18 | 2021-10-29 | 精工爱普生株式会社 | Liquid absorber, and liquid ejecting apparatus |
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