JP2012153823A - Water-absorbing resin composition - Google Patents
Water-absorbing resin composition Download PDFInfo
- Publication number
- JP2012153823A JP2012153823A JP2011015290A JP2011015290A JP2012153823A JP 2012153823 A JP2012153823 A JP 2012153823A JP 2011015290 A JP2011015290 A JP 2011015290A JP 2011015290 A JP2011015290 A JP 2011015290A JP 2012153823 A JP2012153823 A JP 2012153823A
- Authority
- JP
- Japan
- Prior art keywords
- water
- resin composition
- absorbent resin
- liquid
- alginic acid
- 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
- 239000011342 resin composition Substances 0.000 title claims abstract description 35
- 239000002250 absorbent Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 230000002745 absorbent Effects 0.000 claims abstract description 36
- 235000010443 alginic acid Nutrition 0.000 claims abstract description 28
- 229920000615 alginic acid Polymers 0.000 claims abstract description 28
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000011347 resin Substances 0.000 claims abstract description 24
- 239000000783 alginic acid Substances 0.000 claims abstract description 21
- 229960001126 alginic acid Drugs 0.000 claims abstract description 21
- 150000004781 alginic acids Chemical class 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- LCWAOCHOPBSGMU-UHFFFAOYSA-J aluminum;magnesium;sodium;hydrogen carbonate;oxygen(2-);silicon;trihydroxide Chemical compound [OH-].[OH-].[OH-].[O-2].[Na+].[Mg+2].[Al+3].[Si].OC([O-])=O LCWAOCHOPBSGMU-UHFFFAOYSA-J 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims 1
- 150000001768 cations Chemical class 0.000 abstract description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical group CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000661 sodium alginate Substances 0.000 abstract description 7
- 235000010413 sodium alginate Nutrition 0.000 abstract description 7
- 229940005550 sodium alginate Drugs 0.000 abstract description 7
- 229940072056 alginate Drugs 0.000 abstract description 4
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 abstract description 3
- 230000035699 permeability Effects 0.000 abstract 2
- 239000000737 potassium alginate Substances 0.000 abstract 1
- 235000010408 potassium alginate Nutrition 0.000 abstract 1
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- -1 alginate compound Chemical class 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 235000010724 Wisteria floribunda Nutrition 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 210000002700 urine Anatomy 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-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
- 239000002253 acid Substances 0.000 description 2
- 239000003242 anti bacterial agent Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 239000002781 deodorant agent Substances 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- CYKDLUMZOVATFT-UHFFFAOYSA-N ethenyl acetate;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(=O)OC=C CYKDLUMZOVATFT-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
Description
本発明は、樹脂組成物、特に、吸水性樹脂組成物に関する。 The present invention relates to a resin composition, in particular, a water absorbent resin composition.
紙おむつや生理用ナプキン等の衛生材料をはじめとする各種の液体を吸収するための吸収性物品は、吸水性樹脂を用いることで液体の吸収量が高められている。ここで用いられる吸水性樹脂は、アクリル酸塩重合体の架橋物や澱粉−アクリル酸塩グラフト共重合体の加水分解生成物の架橋物などを代表的なものとして挙げることができるが、いずれの種類のものについても、吸収する液体の種類にかかわらず、陽イオン、特に多価陽イオンの影響を受け、一旦吸収した液体を放出してしまうという不具合がある。 Absorbent articles for absorbing various liquids, including sanitary materials such as disposable diapers and sanitary napkins, have increased liquid absorption by using water-absorbing resins. Examples of the water-absorbing resin used here include a cross-linked product of an acrylate polymer and a cross-linked product of a hydrolysis product of a starch-acrylate graft copolymer. Regardless of the type of liquid to be absorbed, there is a problem in that the liquid that has been absorbed is discharged under the influence of cations, particularly polyvalent cations.
そこで、吸水性樹脂を用いた吸収性物品においては、陽イオンの影響を抑制するための改良が試みられている。例えば、特許文献１には、吸水性樹脂に対し、分子構造中にカルボキシル基やスルホン基などの陽イオンを吸着する官能基を有する有機物からなるイオン捕捉物質を組合わせた体液吸収物品が記載されている。 Therefore, in an absorbent article using a water-absorbent resin, attempts have been made to improve the effect of cations. For example, Patent Document 1 describes a bodily fluid absorbent article in which a water-absorbent resin is combined with an ion trapping substance made of an organic substance having a functional group that adsorbs a cation such as a carboxyl group or a sulfone group in the molecular structure. ing.
しかし、特許文献１に記載の体液吸収物品は、そこで用いられるイオン捕捉物質の具体的な構造が不明であり、また、吸水性樹脂のゲル化物によるベト付き等の不快感を抑えることを目的としたものであって、液戻りの防止を目的としたものではない。 However, the body fluid absorbent article described in Patent Document 1 has an unclear specific structure of the ion-trapping substance used therein, and is intended to suppress discomfort such as stickiness due to the gelled product of the water absorbent resin. However, it is not intended to prevent liquid return.
本発明の目的は、吸水性樹脂について、吸収した液体が陽イオンの影響により放出されるのを抑制することにある。 An object of the present invention is to prevent the absorbed liquid from being released due to the influence of a cation with respect to the water absorbent resin.
本発明の吸水性樹脂組成物は、吸水性樹脂と、アルギン酸およびアルギン酸塩のうちの少なくとも一種のアルギン酸系化合物とを含むものである。 The water-absorbent resin composition of the present invention comprises a water-absorbent resin and at least one alginic acid-based compound of alginic acid and alginates.
この吸水性樹脂組成物は、通常、吸水性樹脂１００ｇに対し、アルギン酸系化合物を１〜１００ｇ含む。 This water absorbent resin composition usually contains 1 to 100 g of an alginic acid compound with respect to 100 g of the water absorbent resin.
本発明の吸収体は、本発明の吸水性樹脂組成物を含む吸収材を液体透過性の素材で包装したものである。また、本発明の吸収性物品は、液体透過性シート、液体不透過性シートおよび液体透過性シートと液体不透過性シートとの間に配置された本発明の吸水性樹脂組成物または吸収体を備えている。 The absorbent body of the present invention is obtained by packaging an absorbent material containing the water absorbent resin composition of the present invention with a liquid-permeable material. The absorbent article of the present invention includes a liquid permeable sheet, a liquid impermeable sheet, and the water absorbent resin composition or absorbent body of the present invention disposed between the liquid permeable sheet and the liquid impermeable sheet. I have.
本発明の吸水性樹脂組成物は、吸水性樹脂に対してアルギン酸系化合物を組合わせたものであるため、吸収した液体が陽イオンの影響により放出されるのを抑制することができる。 Since the water-absorbent resin composition of the present invention is a combination of an alginate compound and a water-absorbent resin, the absorbed liquid can be prevented from being released due to the influence of a cation.
本発明の吸収体および吸収性物品は、本発明の吸水性樹脂組成物を用いたものであるため、吸収した液体が陽イオンの影響により放出されるのを抑制することができる。 Since the absorbent body and absorbent article of the present invention use the water absorbent resin composition of the present invention, the absorbed liquid can be prevented from being released due to the influence of cations.
本発明の吸水性樹脂組成物は、尿や血液等の水性液体をはじめとする各種の液体を吸収するためのものであり、吸水性樹脂とアルギン酸系化合物とを含むものである。 The water-absorbing resin composition of the present invention is for absorbing various liquids including aqueous liquids such as urine and blood, and contains a water-absorbing resin and an alginic acid compound.
ここで用いられる吸水性樹脂は、各種のものであって特に限定されるものではなく、例えば、アクリル酸塩重合体の架橋物、澱粉−アクリル酸塩グラフト共重合体の加水分解生成物の架橋物、ビニルアルコール−アクリル酸塩共重合体の架橋物、無水マレイン酸グラフトポリビニルアルコールの架橋物、架橋イソブチレン−無水マレイン酸共重合体、ポリアクリル酸部分中和物架橋体および酢酸ビニル−アクリル酸エステル共重合体のケン化物等が挙げられる。このうち、大量の液体を吸収することができ、多少の荷重をかけても吸収した液体を分子内に安定に保持可能なアクリル酸塩重合体の架橋物を用いるのが好ましい。 The water-absorbing resin used here is various and is not particularly limited. For example, a crosslinked product of an acrylate polymer and a crosslinked product of a hydrolysis product of a starch-acrylate graft copolymer. , Crosslinked product of vinyl alcohol-acrylate copolymer, crosslinked product of maleic anhydride grafted polyvinyl alcohol, crosslinked isobutylene-maleic anhydride copolymer, crosslinked product of partially neutralized polyacrylic acid, and vinyl acetate-acrylic acid Examples thereof include a saponified product of an ester copolymer. Among these, it is preferable to use a cross-linked product of an acrylate polymer that can absorb a large amount of liquid and can stably hold the absorbed liquid in the molecule even when a slight load is applied.
吸水性樹脂は一般に粉末状や顆粒状のものが好ましく、このような吸水性樹脂は、代表的な製造方法である逆相懸濁重合法や水溶液重合法等の他、各種の重合方法で製造したものを必要に応じて粉砕、造粒または分級等することで調製することができる。 In general, the water-absorbent resin is preferably in the form of powder or granules, and such a water-absorbent resin is produced by various polymerization methods in addition to the typical production methods such as the reverse phase suspension polymerization method and the aqueous solution polymerization method. It can prepare by grind | pulverizing, granulating, or classifying as needed.
一方、アルギン酸系化合物としては、アルギン酸またはその塩が用いられ、二種以上のものを併用することもできる。利用可能なアルギン酸およびその塩の種類は、特に限定されるものではなく、食品添加物や工業用等の各種の用途用として一般に市販されているものを用いることができる。但し、アルギン酸塩は、通常、ナトリウム塩またはカリウム塩を用いるのが好ましい。 On the other hand, as the alginic acid compound, alginic acid or a salt thereof is used, and two or more kinds can be used in combination. The kind of alginic acid and its salt which can be utilized is not specifically limited, What is generally marketed for various uses, such as a food additive and an industrial use, can be used. However, it is usually preferable to use a sodium salt or a potassium salt as the alginate.
市販されているアルギン酸としては、例えば、富士化学工業株式会社の「スノーアシッドアルギン」（商品名）などが挙げられる。また、市販されているアルギン酸ナトリウムとしては、例えば、株式会社キミカの各種グレードの「キミカアルギン」（商品名）および富士化学工業株式会社の「スノーアルギンＭ」（商品名）などが挙げられる。 Examples of commercially available alginic acid include “Snow Acid Algin” (trade name) manufactured by Fuji Chemical Industry Co., Ltd. Examples of commercially available sodium alginate include various grades of “Kimika Argin” (trade name) manufactured by Kimika Co., Ltd. and “Snow Algin M” (trade name) manufactured by Fuji Chemical Industry Co., Ltd.
アルギン酸系化合物の形態は、特に限定されるものではないが、通常は粉状または顆粒状のものを用いるのが好ましい。 The form of the alginic acid compound is not particularly limited, but it is usually preferable to use a powdery or granular one.
アルギン酸系化合物の使用量は、通常、吸水性樹脂１００ｇに対し、１〜１００ｇに設定するのが好ましく、３〜５０ｇに設定するのがより好ましい。アルギン酸系化合物の使用量が１ｇ未満の場合、陽イオンの影響による液体の保水能の低下抑制効果を吸水性樹脂に対して付与しにくくなる可能性がある。逆に、１００ｇを超える場合は、使用量に見合う効果がなく、却って不経済である。 Usually, the amount of the alginic acid compound used is preferably set to 1 to 100 g and more preferably 3 to 50 g with respect to 100 g of the water-absorbent resin. When the amount of the alginic acid compound used is less than 1 g, there is a possibility that it is difficult to impart to the water-absorbent resin the effect of suppressing the decrease in water retention capacity of the liquid due to the influence of cations. Conversely, if it exceeds 100 g, there is no effect commensurate with the amount used, which is uneconomical.
本発明の吸水性樹脂組成物は、通常、吸水性樹脂とアルギン酸系化合物とを混合することで製造することができる。この際、抗菌剤、消臭剤、酸化防止剤および紫外線吸収剤等の各種の添加剤を併せて混合することもできる。また、吸水性樹脂は、吸水したものであってもよい。 The water absorbent resin composition of the present invention can be usually produced by mixing a water absorbent resin and an alginic acid compound. At this time, various additives such as an antibacterial agent, a deodorant, an antioxidant and an ultraviolet absorber can be mixed together. Further, the water absorbent resin may be one that has absorbed water.
本発明の吸収体は、吸収材を液体透過性の素材で包装したものである。ここで用いられる吸収材は、上述の吸水性樹脂組成物を含むものであり、吸水性樹脂組成物の他に、例えば、木材から得られる綿状パルプ、メカニカルパルプ、ケミカルパルプおよびセミケミカルパルプ等のセルロース繊維並びにレーヨンおよびアセテート等の人工セルロース繊維等の親水性繊維をさらに含んでいてもよい。また、吸水性樹脂組成物に含まれる添加剤とは別に、滑剤、酸化剤、還元剤、消臭剤、抗菌剤、酸化防止剤および紫外線吸収剤等の各種添加剤をさらに含んでいてもよい。なお、ここで用いられる親水性繊維は、補強材として、ポリアミド、ポリエステルまたはポリオレフィン等の合成樹脂からなる繊維を含有していてもよい。 The absorbent body of the present invention is obtained by packaging an absorbent material with a liquid-permeable material. The absorbent used here contains the above-mentioned water-absorbent resin composition, and in addition to the water-absorbent resin composition, for example, cotton-like pulp obtained from wood, mechanical pulp, chemical pulp, semi-chemical pulp, etc. The cellulose fibers and hydrophilic fibers such as artificial cellulose fibers such as rayon and acetate may be further included. In addition to the additives contained in the water-absorbent resin composition, various additives such as a lubricant, an oxidizing agent, a reducing agent, a deodorant, an antibacterial agent, an antioxidant, and an ultraviolet absorber may be further included. . In addition, the hydrophilic fiber used here may contain the fiber which consists of synthetic resins, such as polyamide, polyester, or polyolefin, as a reinforcing material.
一方、液体透過性の素材としては、例えば、ポリエチレン、ポリプロピレン、ポリエステル若しくはポリアミド等の合成樹脂からなる不織布または多孔質シート等が用いられる。 On the other hand, as the liquid permeable material, for example, a nonwoven fabric or a porous sheet made of a synthetic resin such as polyethylene, polypropylene, polyester or polyamide is used.
本発明の吸収性物品は、液体が通過し得る液体透過性シート（トップシート）と、液体が通過しにくい液体不透過性シート（バックシート）との間に上述の吸水性樹脂組成物または吸収体を保持したものである。 The absorbent article of the present invention includes the above-described water absorbent resin composition or absorption between a liquid permeable sheet (top sheet) through which liquid can pass and a liquid impermeable sheet (back sheet) through which liquid does not easily pass. Holds the body.
ここで利用可能な液体透過性シートとしては、例えば、上述の液体透過性の素材等からなるシートが挙げられる。一方、液体不透過性シートとしては、例えば、ポリエチレン、ポリプロピレン、ポリエステルおよびポリアミド等の合成樹脂からなるフイルム並びにこれらの合成樹脂からなるフイルムと不織布との複合材料等からなるシートが挙げられる。 Examples of the liquid permeable sheet that can be used here include a sheet made of the above-described liquid permeable material. On the other hand, examples of the liquid-impermeable sheet include a film made of a synthetic resin such as polyethylene, polypropylene, polyester and polyamide, and a sheet made of a composite material of a film made of these synthetic resins and a nonwoven fabric.
吸収性物品は、紙おむつや生理用ナプキン等の衛生材料、愛玩動物用のいわゆるペットシート等の日用品、各種の配管やケーブル等の止水材料および土木建築用や工業用の吸水シートまたは養生シート等として用いることができ、用途に応じて大きさや形状を任意に設定することができる。そして、吸収性物品は、使用時において、液体透過性シート側が尿や血液等の体液や浸出水などの液体の発生源側になるようにして用いられる。 Absorbent articles include sanitary materials such as disposable diapers and sanitary napkins, daily necessaries such as so-called pet sheets for pets, water-stopping materials such as various pipes and cables, and water-absorbing or curing sheets for civil engineering and industrial use. The size and shape can be arbitrarily set according to the application. In use, the absorbent article is used such that the liquid permeable sheet side is on the generation source side of body fluids such as urine and blood and liquids such as leachate.
以下に実施例等を挙げ、本発明を具体的に説明するが、本発明は、これら実施例等によってなんら限定されるものではない。 EXAMPLES The present invention will be specifically described below with reference to examples and the like, but the present invention is not limited to these examples and the like.
実施例１
粉末状の吸水性樹脂（住友精化株式会社の商品名「ＳＡ５０」）２．０ｇと粉末状のアルギン酸（富士化学工業株式会社の商品名「スノーアシッドアルギン」）０．１ｇとをミキサーを用いて乾式混合し、吸水性樹脂組成物を調製した。
Example 1
Using a mixer, 2.0 g of powdery water-absorbing resin (trade name “SA50” from Sumitomo Seika Co., Ltd.) and 0.1 g of powdered alginic acid (trade name “Snow Acid Argin” from Fuji Chemical Industry Co., Ltd.) And dry-mixing to prepare a water-absorbent resin composition.
実施例２
アルギン酸の使用量を０．３ｇに変更した以外は実施例１と同様に操作し、吸水性樹脂組成物を製造した。
Example 2
A water-absorbent resin composition was produced in the same manner as in Example 1 except that the amount of alginic acid used was changed to 0.3 g.
実施例３
アルギン酸の使用量を０．５ｇに変更した以外は実施例１と同様に操作し、吸水性樹脂組成物を製造した。
Example 3
A water-absorbent resin composition was produced in the same manner as in Example 1 except that the amount of alginic acid used was changed to 0.5 g.
実施例４
アルギン酸の使用量を０．７ｇに変更した以外は実施例１と同様に操作し、吸水性樹脂組成物を製造した。
Example 4
A water-absorbent resin composition was produced in the same manner as in Example 1 except that the amount of alginic acid used was changed to 0.7 g.
実施例５
アルギン酸の使用量を１．０ｇに変更した以外は実施例１と同様に操作し、吸水性樹脂組成物を製造した。
Example 5
A water-absorbent resin composition was produced in the same manner as in Example 1 except that the amount of alginic acid used was changed to 1.0 g.
実施例６
アルギン酸に替えてアルギン酸ナトリウム（富士化学工業株式会社の商品名「スノーアルギンＭ」）を用いた点を除いて実施例１と同様に操作し、吸水性樹脂組成物を製造した。
Example 6
A water-absorbent resin composition was produced in the same manner as in Example 1 except that sodium alginate (trade name “Snow Algin M” manufactured by Fuji Chemical Industry Co., Ltd.) was used instead of alginic acid.
実施例７
アルギン酸に替えてアルギン酸ナトリウムを用いた点を除いて実施例２と同様に操作し、吸水性樹脂組成物を製造した。
Example 7
A water-absorbent resin composition was produced in the same manner as in Example 2 except that sodium alginate was used instead of alginic acid.
実施例８
アルギン酸に替えてアルギン酸ナトリウムを用いた点を除いて実施例３と同様に操作し、吸水性樹脂組成物を製造した。
Example 8
A water-absorbent resin composition was produced in the same manner as in Example 3 except that sodium alginate was used instead of alginic acid.
実施例９
アルギン酸に替えてアルギン酸ナトリウムを用いた点を除いて実施例４と同様に操作し、吸水性樹脂組成物を製造した。
Example 9
A water-absorbent resin composition was produced in the same manner as in Example 4 except that sodium alginate was used instead of alginic acid.
実施例１０
アルギン酸に替えてアルギン酸ナトリウムを用いた点を除いて実施例５と同様に操作し、吸水性樹脂組成物を製造した。
Example 10
A water-absorbent resin composition was produced in the same manner as in Example 5 except that sodium alginate was used instead of alginic acid.
評価１
実施例１〜１０で得られた吸水性樹脂組成物の全量を人工尿（塩化ナトリウム濃度０．９質量％、塩化マグネシウム濃度０．０６質量％、塩化カルシウム濃度０．０３質量％）１００ｇに投入し、１０分間撹拌した後に目開き７５μｍのＪＩＳ標準篩いを用いてろ過し、１０分間静置した。この分離された膨潤物の質量（Ａ）を測定し、次の式により吸水能を算出した。
Evaluation 1
The total amount of the water-absorbent resin composition obtained in Examples 1 to 10 was added to 100 g of artificial urine (sodium chloride concentration 0.9 mass%, magnesium chloride concentration 0.06 mass%, calcium chloride concentration 0.03 mass%). Then, after stirring for 10 minutes, the mixture was filtered using a JIS standard sieve having an opening of 75 μm and allowed to stand for 10 minutes. The mass (A) of the separated swollen material was measured, and the water absorption capacity was calculated by the following formula.
次に、膨潤物に１．０質量％塩化カルシウム水溶液２００ｇを添加し、５分間静置後に目開き７５μｍのＪＩＳ標準篩いを用いてろ過し、１０分間静置した。この分離された膨潤物の質量（Ｂ）を測定し、次の式により保水能を算出した。 Next, 200 g of a 1.0% by mass calcium chloride aqueous solution was added to the swollen material, left to stand for 5 minutes, filtered using a JIS standard sieve having an opening of 75 μm, and left to stand for 10 minutes. The mass (B) of the separated swollen material was measured, and the water retention capacity was calculated by the following formula.
また、実施例１〜１０において用いた吸水性樹脂のみについて、同様にして吸水能および保水能を調べた。以上の結果を表１に示す。 Further, only the water absorbent resin used in Examples 1 to 10 was examined in the same manner for water absorption ability and water retention ability. The results are shown in Table 1.
評価２
評価１で用いたものとは別に調製した実施例１〜１０の吸水性樹脂組成物について、評価１と同様にして吸水能を調べた。また、吸水能を調べた後の膨潤物に１．０質量％塩化鉄（ＦｅＣｌ３）水溶液３００ｇを添加し、５分間静置後にろ過した。分離された膨潤物を１０分間静置した後に質量（Ｂ）を測定し、評価１の場合と同様の式により保水能を算出した。
Evaluation 2
The water absorbing ability of the water absorbent resin compositions of Examples 1 to 10 prepared separately from those used in Evaluation 1 was examined in the same manner as in Evaluation 1. In addition, 300 g of a 1.0 mass% iron chloride (FeCl 3 ) aqueous solution was added to the swollen product after the water absorption ability was examined, and after standing for 5 minutes, filtration was performed. The separated swollen material was allowed to stand for 10 minutes, and then the mass (B) was measured. The water retention capacity was calculated according to the same formula as in Evaluation 1.
また、実施例１〜１０において用いた吸水性樹脂のみについて、同様にして吸水能および保水能を調べた。以上の結果を表２に示す。 Further, only the water absorbent resin used in Examples 1 to 10 was examined in the same manner for water absorption ability and water retention ability. The results are shown in Table 2.
表１および表２によると、実施例１〜１０の吸水性樹脂組成物は、吸水能を維持しつつ、保水能が顕著に高められていることがわかる。 According to Table 1 and Table 2, it can be seen that the water-absorbing resin compositions of Examples 1 to 10 have significantly enhanced water retention capability while maintaining water absorption capability.
Claims (5)
液体不透過性シートと、
前記液体透過性シートと前記液体不透過性シートとの間に配置された請求項１または２に記載の吸水性樹脂組成物と、
を備えた吸収性物品。 A liquid permeable sheet;
A liquid impervious sheet;
The water absorbent resin composition according to claim 1 or 2, disposed between the liquid permeable sheet and the liquid impermeable sheet,
Absorbent article comprising
液体不透過性シートと、
前記液体透過性シートと前記液体不透過性シートとの間に配置された請求項３に記載の吸収体と、
を備えた吸収性物品。 A liquid permeable sheet;
A liquid impervious sheet;
The absorber according to claim 3, which is disposed between the liquid permeable sheet and the liquid impermeable sheet;
Absorbent article comprising
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011015290A JP5681510B2 (en) | 2011-01-27 | 2011-01-27 | Water absorbent resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011015290A JP5681510B2 (en) | 2011-01-27 | 2011-01-27 | Water absorbent resin composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012153823A true JP2012153823A (en) | 2012-08-16 |
| JP5681510B2 JP5681510B2 (en) | 2015-03-11 |
Family
ID=46835895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011015290A Active JP5681510B2 (en) | 2011-01-27 | 2011-01-27 | Water absorbent resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5681510B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018168850A1 (en) * | 2017-03-17 | 2018-09-20 | 住友精化株式会社 | Water absorbent resin composition, absorbent, and absorbent article |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5259651A (en) * | 1975-11-11 | 1977-05-17 | Kao Corp | Absorbent material |
| JPS6195014A (en) * | 1984-10-15 | 1986-05-13 | Namiko Miyata | Water-absorbing material having improved salt water resistance |
| JPH06261924A (en) * | 1992-12-04 | 1994-09-20 | Daio Paper Corp | Physical liquid absorbing object |
| JPH06306298A (en) * | 1990-03-27 | 1994-11-01 | Korea Res Inst Chem Technol | Biodegradable and highly absorbing resin composition, nonwoven fabric made from this composition and its use |
| JPH11505468A (en) * | 1995-02-20 | 1999-05-21 | シュトックハウゼン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・カーゲー | Sheet-shaped super absorbent structure |
| JP2004346089A (en) * | 2003-04-10 | 2004-12-09 | Sumitomo Seika Chem Co Ltd | Water-absorbing resin composition |
| JP2010233812A (en) * | 2009-03-31 | 2010-10-21 | Daio Paper Corp | Absorbent article and method for manufacturing the same |
| JP2010253283A (en) * | 2010-06-15 | 2010-11-11 | Sumitomo Seika Chem Co Ltd | Water-absorbing resin |
-
2011
- 2011-01-27 JP JP2011015290A patent/JP5681510B2/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5259651A (en) * | 1975-11-11 | 1977-05-17 | Kao Corp | Absorbent material |
| JPS6195014A (en) * | 1984-10-15 | 1986-05-13 | Namiko Miyata | Water-absorbing material having improved salt water resistance |
| JPH06306298A (en) * | 1990-03-27 | 1994-11-01 | Korea Res Inst Chem Technol | Biodegradable and highly absorbing resin composition, nonwoven fabric made from this composition and its use |
| JPH06261924A (en) * | 1992-12-04 | 1994-09-20 | Daio Paper Corp | Physical liquid absorbing object |
| JPH11505468A (en) * | 1995-02-20 | 1999-05-21 | シュトックハウゼン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・カーゲー | Sheet-shaped super absorbent structure |
| JP2004346089A (en) * | 2003-04-10 | 2004-12-09 | Sumitomo Seika Chem Co Ltd | Water-absorbing resin composition |
| JP2010233812A (en) * | 2009-03-31 | 2010-10-21 | Daio Paper Corp | Absorbent article and method for manufacturing the same |
| JP2010253283A (en) * | 2010-06-15 | 2010-11-11 | Sumitomo Seika Chem Co Ltd | Water-absorbing resin |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018168850A1 (en) * | 2017-03-17 | 2018-09-20 | 住友精化株式会社 | Water absorbent resin composition, absorbent, and absorbent article |
| CN110325597A (en) * | 2017-03-17 | 2019-10-11 | 住友精化株式会社 | Water absorbency resin composition, absorber and absorbent commodity |
| JPWO2018168850A1 (en) * | 2017-03-17 | 2020-01-16 | 住友精化株式会社 | Water-absorbing resin composition, absorber, and absorbent article |
| JP7249938B2 (en) | 2017-03-17 | 2023-03-31 | 住友精化株式会社 | Water absorbent resin composition, absorbent body, and absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5681510B2 (en) | 2015-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7157141B2 (en) | Pulverulent polymers crosslinked on the surface | |
| CN102186508B (en) | Superabsorbent polymer containing clay, particulate, and method of making same | |
| JP5410018B2 (en) | Water-absorbent resin composition, method for producing the same, and absorbent article | |
| KR100858387B1 (en) | Particulate water absorbing agent and method for production thereof, and water absorbing article | |
| TWI402305B (en) | Odour-binding superabsorbing composition | |
| US7507475B2 (en) | Pulverulent polymers crosslinked on the surface | |
| US8829107B2 (en) | Biodegradable superabsorbent polymer composition with good absorption and retention properties | |
| EP2934413B1 (en) | Fluid-absorbent article | |
| KR101840496B1 (en) | Ultrathin fluid-absorbent cores | |
| US20160206772A1 (en) | Fluid-Absorbent Article | |
| JP3979959B2 (en) | Water absorbent resin composition | |
| JP2003529647A (en) | Surface-crosslinked powdery polymer | |
| JP2006068731A (en) | Particulate water absorbent mainly composed of water absorbing resin, manufacturing method therefor, and absorptive article | |
| JP2016524634A (en) | Superabsorbent polymer having high absorbency and method for producing the same | |
| KR20140038998A (en) | Polyacrylic acid(salt) water-absorbent resin powder, and method for producing same | |
| MXPA04009978A (en) | Particulate water absorbent containing water absorbent resin as a main component. | |
| TW200424252A (en) | Water absorbing resin composition | |
| JP3665797B2 (en) | Deodorant resin composition and process for producing the same | |
| WO2016207444A1 (en) | New absorbent article comprising an acquisition/distribution layer and process for making it | |
| JP5681510B2 (en) | Water absorbent resin composition | |
| JP6508947B2 (en) | Method for producing polyacrylic acid (salt) -based water absorbing agent | |
| WO2021075460A1 (en) | Deodorizer composition, absorbing body, and absorbent article | |
| WO2021075459A1 (en) | Deodorant composition, absorber, and absorbent article | |
| WO2021075458A1 (en) | Deodorant composition, absorbent, and absorbent article | |
| WO2022181771A1 (en) | Granular water absorbent, absorbent body containing said water absorbent, and absorbent article using said absorbent body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20140117 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140728 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140826 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141023 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150106 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150109 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5681510 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |