JP3044367B2 - Antimicrobial water-absorbing composition and method for producing the same - Google Patents
Antimicrobial water-absorbing composition and method for producing the sameInfo
- Publication number
- JP3044367B2 JP3044367B2 JP8281785A JP28178596A JP3044367B2 JP 3044367 B2 JP3044367 B2 JP 3044367B2 JP 8281785 A JP8281785 A JP 8281785A JP 28178596 A JP28178596 A JP 28178596A JP 3044367 B2 JP3044367 B2 JP 3044367B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- antibacterial
- absorbing
- component
- absorbing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 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
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000003405 preventing effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
【０００１】[0001]
【発明の属する技術】本発明は、吸収性能、抗菌性能及
び粉体特性に優れ、特に尿、血液、体液などを吸収する
吸収性物品に有用な抗菌性吸水剤組成物およびその製法
に関する。TECHNICAL FIELD The present invention relates to an antibacterial water-absorbing agent composition excellent in absorption performance, antibacterial performance and powder properties, and particularly useful for an absorbent article absorbing urine, blood, body fluid and the like, and a method for producing the same.
【０００２】[0002]
【従来の技術】吸水性樹脂は、その吸収性能、保水能、
ゲル化能を利用して、紙おむつ、失禁パッド、生理用ナ
プキン、母乳用パッド等の吸収性物品や、ペット用シー
ト、ペット用床砂、排泄物処理剤、廃血液ゲル化剤、ド
リップ吸収剤、鮮度保持剤などの各種用途で使用されて
いる。しかしながら、従来の吸水性樹脂は尿、血液、体
液などを吸収・保水する能力に優れるものの、抗菌機能
は有していない。したがって、尿、血液、体液などを吸
収した場合、吸収液に含まれる菌類や微生物などによっ
て有機物が分解され、この分解生成物が悪臭発生や皮膚
刺激、かぶれ等の原因となるという問題がある。更に吸
収液に含まれる菌類や微生物あるいは空気中のバクテリ
ア等によっても吸収ゲルが腐敗しやすく、腐敗により悪
臭を発散することがある。以上のことから、衛生面およ
び安全性の観点から、吸収機能と抗菌機能の双方を満足
する材料の出現が要望されてきた。特に、寝たきり老人
や病人などに使用される大人用紙おむつなどの吸収性物
品では、悪臭やかぶれの問題は深刻であり、解決が望ま
れている。上記に近い効果を発現させる方法として、吸
水性樹脂とゼオライトとの粉体同士の混合物（特開昭５
７−２５８１３号公報、特開昭５９−１７９１１４号公
報、特開昭５９−１８９８５４号公報）、活性炭を吸水
性樹脂でコーティングした組成物（特開昭５６−３１４
２５号公報）、吸水性樹脂とツバキ科植物から抽出され
た消臭成分とから成る組成物（特開昭６０−１５８８６
１号公報）、特定の抗菌剤（塩化ベンザルコニウム、グ
リコン酸クロルヘキシジン、燐酸塩化合物など）を含有
した吸水性樹脂組成物（特公平４−１７０５８号公報、
特開平５−１７９０５３号公報）などの組成物およびこ
れらの吸収性物品への適用が提案されている。2. Description of the Related Art A water-absorbent resin has an absorption performance, a water retention capability,
Utilizing the gelling ability, absorbent articles such as disposable diapers, incontinence pads, sanitary napkins, breast milk pads, etc., pet sheets, pet floor sand, excrement disposal agents, waste blood gelling agents, drip absorbents It is used in various applications such as a freshness preservative. However, the conventional water-absorbent resin has excellent ability to absorb and retain urine, blood, body fluid, etc., but does not have an antibacterial function. Therefore, when urine, blood, body fluid, and the like are absorbed, there is a problem that organic matter is decomposed by fungi and microorganisms contained in the absorbed liquid, and this decomposition product causes bad odor, skin irritation, rash and the like. Further, the absorbing gel is liable to rot by fungi and microorganisms contained in the absorbing liquid or bacteria in the air, and the odor may be emitted by the rot. From the above, from the viewpoint of hygiene and safety, there has been a demand for a material that satisfies both the absorption function and the antibacterial function. In particular, in the case of absorbent articles such as adult paper diapers used for bedridden elderly people and sick people, the problem of bad smell and rash is serious, and a solution is desired. As a method for exhibiting an effect similar to the above, a mixture of powders of a water-absorbing resin and zeolite (Japanese Patent Laid-Open No.
7-25813, JP-A-59-179114, JP-A-59-189854), and a composition in which activated carbon is coated with a water-absorbing resin (JP-A-56-314).
No. 25), a composition comprising a water-absorbing resin and a deodorant component extracted from a Camellia plant (JP-A-60-15886).
No. 1), and a water-absorbing resin composition containing specific antibacterial agents (benzalkonium chloride, chlorhexidine gluconate, phosphate compounds, etc.) (Japanese Patent Publication No. 4-17058,
JP-A-5-179053) and their application to absorbent articles have been proposed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、これら
の組成物は、吸収性物品に適用するには必ずしも満足の
いく悪臭発生防止効果や腐敗抑制効果が得られなかっ
た。すなわち、吸水性樹脂とゼオライトとの混合物は、
発生した悪臭は吸着することができるものの、吸水性樹
脂およびゼオライトともに抗菌機能を持たないことか
ら、微生物や菌類による有機物の分解や腐敗を抑制し、
この分解生成物や腐敗による悪臭の発生を防止すること
ができない。したがって、吸収性物品に適用しても皮膚
刺激やかぶれ等を抑えることはできなかった。活性炭を
吸水性樹脂でコーティングした組成物や、吸水性樹脂と
ツバキ科植物から抽出された消臭成分とから成る組成物
の場合、活性炭およびツバキ科植物から抽出された消臭
成分が抗菌機能を示さないことから、上記のゼオライト
の場合と同様の結果となり、微生物や菌類による有機物
の分解や腐敗を抑制することができない。塩化ベンザル
コニウムや燐酸塩化合物を含有した吸水性樹脂組成物
は、ある程度の抗菌作用が認められるものの、適用対象
となる菌類や微生物の種類に限度があり、必ずしも満足
のできるものではなかった。However, these compositions did not always provide satisfactory odor preventing effects and rot suppressing effects for application to absorbent articles. That is, the mixture of the water-absorbent resin and the zeolite,
Although the generated odor can be adsorbed, both water absorbent resin and zeolite have no antibacterial function, so it suppresses decomposition and decay of organic matter by microorganisms and fungi,
It is not possible to prevent the generation of offensive odors due to the decomposition products and putrefaction. Therefore, even when applied to an absorbent article, skin irritation, rash and the like could not be suppressed. In the case of a composition obtained by coating activated carbon with a water-absorbent resin, or a composition comprising a water-absorbent resin and a deodorant component extracted from a camellia plant, the deodorant component extracted from the activated carbon and the camellia plant has an antibacterial function. Since it is not shown, the same result as in the case of the above-mentioned zeolite is obtained, and it is not possible to suppress the decomposition and spoilage of organic matter by microorganisms and fungi. Although the water-absorbent resin composition containing benzalkonium chloride and a phosphate compound has a certain antibacterial effect, it is not always satisfactory because it has limitations on the types of fungi and microorganisms to be applied.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、上記問題
点を鑑みて、吸収性能と抗菌性能の双方に優れ、かつ粉
体ハンドリング性（低発塵性、耐吸湿ブロッキング性）
にも優れた吸水剤組成物であり、特に尿、血液、体液な
どを吸収する目的で使用される吸収性物品に有用な抗菌
性吸水剤組成物およびその製法について鋭意検討した結
果、本発明に到達した。SUMMARY OF THE INVENTION In view of the above problems, the present inventors have excellent both absorption performance and antibacterial performance, and have powder handling properties (low dust generation properties, moisture absorption blocking properties).
It is a water-absorbing agent composition excellent also in the urine, blood, especially antimicrobial water-absorbing agent composition useful for absorbent articles used for the purpose of absorbing body fluids and the like, as a result of intensive studies, the present invention Reached.
【０００５】すなわち本発明は、下記＜１＞、＜２＞の
抗菌性吸水剤組成物；＜３＞、＜４＞の抗菌性吸水剤組
成物の製法；並びに、＜５＞、＜６＞の吸収性物品であ
る。 ＜１＞ アクリル酸およびアクリル酸塩を主構成単位と
する水不溶性の吸水性樹脂であり、且つ、アクリル酸成
分がアクリル酸成分とアクリル酸塩成分の合計に対して
２０〜５０モル％である吸水性樹脂（Ａ）の粉末に、ク
ロルヘキシジン、ポリメチレンビグアニジン有機酸塩化
合物及び炭素数が６〜１２の脂肪族アルキル基を分子内
に少なくとも１個有する第４級アンモニウム有機酸塩化
合物からなる群から選ばれる少なくとも１種の抗菌成分
（Ｂ）が、内蔵又は担持されてなる抗菌性吸水剤組成
物。 ＜２＞ （Ａ）の粉末に（Ｂ）が内蔵あるいは担持され
たものの表面に、更に微粒子状無機物（Ｃ）が固着して
なる＜１＞記載の抗菌性吸水剤組成物。 ＜３＞ ＜２＞記載の抗菌性吸水剤組成物を製造するに
当たり、該吸水性樹脂（Ａ）の粉末と該抗菌成分（Ｂ）
の水溶液または水分散液とを加温することなく混合処理
した後、微粒子状無機物質（Ｃ）を混合して（Ａ）の表
面に固着させることを特徴とする抗菌性吸水剤組成物の
製法。 ＜４＞ ＜２＞記載の抗菌性吸水剤組成物を得るに当た
り、該吸水性樹脂（Ａ）の含水ゲルに該抗菌成分（Ｂ）
を混練し、乾燥、粉砕した後、微粒子状無機物質（Ｃ）
を混合して（Ａ）の表面に固着させることを特徴とする
抗菌性吸水剤組成物の製法。 ＜５＞ ＜１＞又は＜２＞記載の抗菌性吸水剤組成物
が、吸水性の繊維状支持体中に保持された層を有する吸
収性物品。 ＜６＞ ＜３＞又は＜４＞記載の方法で製造された抗菌
性吸水剤組成物が、吸水性の繊維状支持体中に保持され
た層を有する吸収性物品。That is, the present invention relates to the following <1> and <2> antimicrobial water-absorbing agent compositions; <3> and <4> manufacturing methods of antimicrobial water-absorbing agent compositions; and <5> and <6> It is an absorbent article. <1> A water-insoluble water-absorbent resin containing acrylic acid and acrylate as main constituent units, and the acrylate component is 20 to 50 mol% based on the total of the acrylate component and the acrylate component. The powder of the water-absorbent resin (A) comprises chlorhexidine, a polymethylenebiguanidine organic acid salt compound and a quaternary ammonium organic acid salt compound having at least one aliphatic alkyl group having 6 to 12 carbon atoms in the molecule. An antibacterial water-absorbing composition comprising at least one antibacterial component (B) selected from the group incorporated or carried. <2> The antibacterial water-absorbing agent composition according to <1>, wherein the fine particle inorganic substance (C) is further fixed on the surface of the powder of (A) in which (B) is incorporated or supported. <3> In producing the antibacterial water-absorbing agent composition according to <2>, the powder of the water-absorbing resin (A) and the antibacterial component (B) are used.
A method for producing an antibacterial water-absorbing agent composition, comprising mixing an aqueous solution or aqueous dispersion of the above without heating, mixing the particulate inorganic substance (C) and fixing the mixture to the surface of (A). . <4> In obtaining the antibacterial water-absorbing agent composition according to <2>, the antimicrobial component (B) is added to the hydrogel of the water-absorbent resin (A).
After kneading, drying and pulverizing, the finely divided inorganic substance (C)
And adhering the mixture to the surface of (A). <5> An absorbent article having a layer in which the antibacterial water-absorbing agent composition according to <1> or <2> is held in a water-absorbing fibrous support. <6> An absorbent article having a layer in which the antibacterial water-absorbing agent composition produced by the method according to <3> or <4> is held in a water-absorbing fibrous support.
【０００６】[0006]
【発明の実施の形態】本発明において、アクリル酸およ
びアクリル酸塩を主構成単位とする水不溶性の吸水性樹
脂であり、且つ、アクリル酸成分がアクリル酸成分とア
クリル酸塩成分の合計に対して２０〜５０モル％である
吸水性樹脂（Ａ）は、アンモニア吸着機能が期待される
ことから、構成単位にカルボン酸基を有する吸水性樹脂
が好ましく、その種類および製造方法は特に限定されな
い。本発明において好適に使用しうる（Ａ）の例として
は、 ・特公昭５３−４６１９９号、特公昭５３−４６２００
号各公報などに記載のデンプン−アクリル酸（塩）共重
合体の架橋物； ・特公昭５４−３０７１０号、特開昭５６−２６９０９
号各公報などに記載の逆相懸濁重合法による架橋あるい
は自己架橋されたポリアクリル酸塩； ・特開昭５５−１３３４１３号公報などに記載の水溶液
重合（断熱重合、薄膜重合、噴霧重合など）により得ら
れる架橋ポリアクリル酸（塩）； ・特開昭５２−１４６８９号、特開昭５２−２７４５５
号各公報などに記載のビニルエステルと不飽和カルボン
酸またはその誘導体との共重合体ケン化物； ・特開昭５８−２３１２号、特 開昭６１−３６３０９
号各公報などに記載のスルホン酸（塩）基含有モノマー
を共重合した架橋ポリアクリル酸（塩）； ・イソブチレン−無水マレイン酸共重合体架橋物； ・デンプン−アクリロニトリル共重合体の加水分解物； ・架橋カルボキシメチルセルロース誘導体 ・アクリル酸（塩）とアクリルアミドとの共重合体架橋
物 などが挙げられる。上記吸水性樹脂は２種以上併用して
もよい。また、上記吸水性樹脂粉末の表面近傍を更に表
面架橋せしめた表面架橋型吸水性樹脂も本発明に好適に
使用できる。尚、上記において、塩とは通常ナトリウム
塩および／またはカリウム塩であるが、用途によっては
アンモニウム塩、アミン塩などの有機塩であってもよ
い。これらのうち、好ましいものは、比較的大きな吸収
能力を発揮するという点で、アクリル酸およびアクリル
酸塩を主構成単位とする水不溶性の吸水性樹脂である。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a water-insoluble water-absorbent resin having acrylic acid and acrylate as main constituent units, and the acrylate component is based on the total of the acrylate component and the acrylate component The water-absorbent resin (A) having a molar ratio of 20 to 50 mol% is preferably a water-absorbent resin having a carboxylic acid group in the structural unit since the ammonia-adsorbing function is expected, and the type and production method are not particularly limited. Examples of (A) that can be suitably used in the present invention include: JP-B-53-46199 and JP-B-53-46200.
Crosslinked products of starch-acrylic acid (salt) copolymers described in JP-A-54-30710 and JP-A-56-26909.
Or cross-linked self-crosslinked polyacrylic acid salts described in Japanese Patent Application Publication Nos. JP-A-55-133413; aqueous solution polymerization (adiabatic polymerization, thin film polymerization, spray polymerization, etc.) Crosslinked polyacrylic acid (salt) obtained by the method described in JP-A-52-14689 and JP-A-52-27455.
Copolymer saponified product of a vinyl ester and an unsaturated carboxylic acid or a derivative thereof described in JP-A-58-2312, JP-A-58-2312, and JP-A-61-36309.
Crosslinked polyacrylic acid (salt) obtained by copolymerizing a sulfonic acid (salt) group-containing monomer described in each of the above publications; a crosslinked product of isobutylene-maleic anhydride copolymer; a hydrolyzate of a starch-acrylonitrile copolymer A crosslinked carboxymethylcellulose derivative; a crosslinked copolymer of acrylic acid (salt) and acrylamide; Two or more of the above water-absorbing resins may be used in combination. Further, a surface crosslinked type water absorbent resin in which the surface vicinity of the water absorbent resin powder is further surface crosslinked can be suitably used in the present invention. In the above description, the salt is usually a sodium salt and / or a potassium salt, but may be an organic salt such as an ammonium salt or an amine salt depending on the use. Among these, preferred are water-insoluble water-absorbent resins containing acrylic acid and acrylate as main constituent units in that they exhibit relatively large absorption capacity.
【０００７】アクリル酸およびアクリル酸塩を主構成単
位とする水不溶性の吸水性樹脂において、アクリル酸成
分がアクリル酸成分とアクリル酸塩成分との合計に対し
て少なくとも２０〜５０モル％であることが好ましい。
さらに好ましくは、アクリル酸成分モル比が２５〜４０
モル％である。このように、吸水性樹脂にアクリル酸単
位を残しておくことにより、アクリル酸成分のカルボキ
シル基が臭気成分の一種であるアンモニアなどを吸着す
るという付随効果が得られる。アクリル酸成分とアクリ
ル酸塩成分の合計に対するアクリル酸単位のモル比が５
０を越える場合、吸収性能が低下すると共に、得られる
抗菌性吸水剤組成物のｐＨが酸性となり、皮膚に対する
安全性の面でも好ましくない。一方、アクリル酸単位の
モル比が２０未満の場合、アンモニアなどを吸着する効
果が乏しくなるとともに、得られる抗菌性吸水剤組成物
のｐＨがアルカリ性となり、この場合も皮膚に対する安
全性の面で好ましくない。In the water-insoluble water-absorbent resin containing acrylic acid and acrylate as a main constituent unit, the acrylate component is at least 20 to 50 mol% based on the total of the acrylate component and the acrylate component. Is preferred.
More preferably, the acrylic acid component molar ratio is 25 to 40.
Mol%. By leaving the acrylic acid unit in the water-absorbing resin in this manner, an additional effect that the carboxyl group of the acrylic acid component adsorbs ammonia, which is a kind of odor component, is obtained. The molar ratio of acrylic acid unit to the total of acrylic acid component and acrylate component is 5
If it exceeds 0, the absorption performance is reduced and the pH of the obtained antibacterial water-absorbing composition becomes acidic, which is not preferable in terms of skin safety. On the other hand, when the molar ratio of acrylic acid units is less than 20, the effect of adsorbing ammonia and the like becomes poor, and the pH of the obtained antibacterial water-absorbing agent composition becomes alkaline, which is also preferable in terms of safety on the skin. Absent.
【０００８】吸水性樹脂（Ａ）の生理食塩水（０．９％
の塩化ナトリウム水溶液）に対する吸収能は、通常３０
ｇ／ｇ以上、好ましくは３５〜８０ｇ／ｇ、さらに好ま
しくは４０〜７５ｇ／ｇである。なお、吸収能は後述す
る方法で測定される。Physiological saline (0.9%) of the water-absorbent resin (A)
Of sodium chloride aqueous solution) is usually 30
g / g or more, preferably 35 to 80 g / g, more preferably 40 to 75 g / g. In addition, absorptivity is measured by the method mentioned later.
【０００９】（Ａ）の形状については粉末状であれば特
に限定はなく、例えば、粒状、顆粒状、造粒状、リン片
状、塊状、パール状、微粉末状などのいずれの形状であ
ってもよい。粒度あるいは粒度分布についても特に限定
はないが、通常９０質量％以上が１ｍｍ以下、好ましく
は９０質量％以上が０．１〜０．９ｍｍである。The shape of (A) is not particularly limited as long as it is a powder. For example, any shape such as granule, granule, granulated, scaly, massive, pearl, and fine powder can be used. You may. There is no particular limitation on the particle size or particle size distribution, but usually 90% by mass or more is 1 mm or less, preferably 90% by mass or more is 0.1 to 0.9 mm.
【００１０】本発明における抗菌成分（Ｂ）としては、
人尿、血液、体液などに含まれる菌類（大腸菌、アンモ
ニア産生菌、カンジダ菌、ブドウ状球菌など）、微生
物、バクテリアなどの繁殖を抑制しうるものが使用され
る。具体的には、クロルヘキシジン、ポリメチレンビグ
アニジン有機酸塩化合物及び炭素数が６〜１２の脂肪族
アルキル基を分子内に少なくとも１個有する第４級アン
モニウム有機酸塩化合物から選ばれる少なくとも１種が
抗菌成分として用いられる。クロルヘキシジンは塩酸ク
ロルヘキシジンであってもよい。ポリメチレンビグアニ
ジン有機酸塩化合物としては、ポリヘキサメチレングア
ニジン有機酸塩化合物、ポリオクタメチレングアニジン
有機酸塩化合物などが用いられる。The antibacterial component (B) in the present invention includes:
Those that can suppress the growth of fungi (such as Escherichia coli, ammonia-producing bacteria, Candida bacteria, staphylococci), microorganisms, and bacteria contained in human urine, blood, body fluids, and the like are used. Specifically, at least one selected from chlorhexidine, a polymethylenebiguanidine organic acid salt compound, and a quaternary ammonium organic acid salt compound having at least one aliphatic alkyl group having 6 to 12 carbon atoms in the molecule is used. Used as an antimicrobial component. Chlorhexidine may be chlorhexidine hydrochloride. As the polymethylene biguanidine organic acid salt compound, a polyhexamethylene guanidine organic acid salt compound, a polyoctamethylene guanidine organic acid salt compound, or the like is used.
【００１１】炭素数が６〜１２の脂肪族アルキル基を分
子内に少なくとも１個有する第４級アンモニウム有機酸
塩化合物の具体例としては、次のような第４級アンモニ
ウム基をカチオンとし、下記有機酸化合物を対アニオン
とする化合物が挙げられる。 （１）第４級アンモニウム基 ヘキシルトリメチルアンモニウム、オクチルトリメチル
アンモニウム、デシルトリメチルアンモニウム、ラウリ
ルトリメチルアンモニウム、オクチルジメチルエチルア
ンモニウム、デシルジメチルエチルアンモニウム、ラウ
リルジメチルエチルアンモニウム、ジヘキシルジメチル
アンムニウム、ジオクチルジメチルアンモニウム、ジデ
シルジメチルアンモニウム、ジドデシルジメチルアンモ
ニウム、ジラウリルジメチルアンモニウムなどの第４級
アンモニウム基が挙げられる。これらのうち好ましいも
のは、炭素数が８〜１０の脂肪族アルキル基を分子内に
少なくとも１個有する第４級アンモニウム基であり、さ
らに好ましくは炭素数が８〜１０の脂肪族アルキル基を
分子内に２個有する第４級アンモニウム基（ジオクチル
ジメチルアンモニウム、ジデシルジメチルアンモニウム
など）である。Specific examples of the quaternary ammonium organic acid salt compound having at least one aliphatic alkyl group having 6 to 12 carbon atoms in the molecule include the following quaternary ammonium groups as cations. Compounds having an organic acid compound as a counter anion are exemplified. (1) Quaternary ammonium group hexyltrimethylammonium, octyltrimethylammonium, decyltrimethylammonium, lauryltrimethylammonium, octyldimethylethylammonium, decyldimethylethylammonium, lauryldimethylethylammonium, dihexyldimethylammonium, dioctyldimethylammonium, didecyl And quaternary ammonium groups such as dimethylammonium, didodecyldimethylammonium, and dilauryldimethylammonium. Of these, preferred are quaternary ammonium groups having at least one aliphatic alkyl group having 8 to 10 carbon atoms in the molecule, and more preferred are aliphatic alkyl groups having 8 to 10 carbon atoms. A quaternary ammonium group (dioctyldimethylammonium, didecyldimethylammonium, etc.) having two of them.
【００１２】（２）有機酸化合物 炭素数が１〜３０の脂肪族モノカルボン酸である飽和モ
ノカルボン酸（酢酸、プロピオン酸、カプリン酸、ラウ
リル酸、ミリスチン酸、ステアリン酸、ベヘン酸な
ど）、不飽和モノカルボン酸（アクリル酸、メタアクリ
ル酸、オレイン酸など）、脂肪族オキシカルボン酸（グ
リコール酸、乳酸、グルコン酸など）とポリカルボン酸
である脂肪族ポリカルボン酸（シュウ酸、コハク酸、ア
ジピン酸、アゼライン酸、セバチン酸、マレイン酸、フ
マール酸、イタコン酸など)、芳香族カルボン酸（フタ
ル酸、トリメリット酸、ピロメリット酸など）等の有機
酸が挙げられる。これら有機酸のうち好ましいものは、
脂肪族オキシカルボン酸、脂肪族ポリカルボン酸であ
り、さらに好ましくはグルコン酸、アジピン酸である。
第４級アンモニウム基含有化合物を構成する対アニオン
が無機酸（塩酸、ブロム酸、硫酸など）の場合、温度に
よってはアンモニアの遊離が認められたり、これら無機
酸型抗菌性吸水剤の製造あるいは適用する際の装置類の
金属材質に腐食を生じることがあり好ましくない。ま
た、菌類に対する適用範囲も有機酸塩型に比べると狭
い。(2) Organic acid compounds: saturated monocarboxylic acids which are aliphatic monocarboxylic acids having 1 to 30 carbon atoms (such as acetic acid, propionic acid, capric acid, lauric acid, myristic acid, stearic acid, and behenic acid); Unsaturated monocarboxylic acids (acrylic acid, methacrylic acid, oleic acid, etc.), aliphatic oxycarboxylic acids (glycolic acid, lactic acid, gluconic acid, etc.) and aliphatic polycarboxylic acids which are polycarboxylic acids (oxalic acid, succinic acid) And organic acids such as adipic acid, azelaic acid, sebacic acid, maleic acid, fumaric acid, itaconic acid, and aromatic carboxylic acids (phthalic acid, trimellitic acid, pyromellitic acid, etc.). Preferred among these organic acids are
Aliphatic oxycarboxylic acids and aliphatic polycarboxylic acids are more preferred, and gluconic acid and adipic acid are more preferred.
When the counter anion constituting the quaternary ammonium group-containing compound is an inorganic acid (hydrochloric acid, bromic acid, sulfuric acid, etc.), release of ammonia may be observed depending on the temperature, or production or application of these inorganic acid type antibacterial water absorbing agents. In such a case, corrosion may occur in the metal material of the devices, which is not preferable. The range of application to fungi is narrower than that of the organic acid salt type.
【００１３】本発明において（Ａ）と（Ｂ）との比率
は、目的とする吸収性能と抗菌性能とのバランスによっ
て種々変化させることができるが、通常（Ａ）：（Ｂ）
が質量基準で１００：（０．０１〜５）、好ましくは１
００：（０．０５〜３）、さらに好ましくは１００：
（０．１〜２）である。（Ａ）と（Ｂ）の合計質量に対
する（Ｂ）の比率が０．０１質量％未満では、得られる
組成物の抗菌効果が乏しくなる。一方、（Ａ）と（Ｂ）
の合計質量に対する（Ｂ）の比率は５質量％ですでに十
分な抗菌効果を発揮するため、これ以上比率を高めても
抗菌効果は変わらず、吸収性能だけが低下してくる。
したがって、吸収性物品に適用して一定の吸収性能を確
保するためには多量に本発明の組成物を添加しなければ
ならず、経済的ではない。In the present invention, the ratio between (A) and (B) can be variously changed depending on the balance between the desired absorption performance and antibacterial performance, but usually (A) :( B)
Is 100: (0.01 to 5) by mass, preferably 1
00: (0.05-3), more preferably 100:
(0.1 to 2). When the ratio of (B) to the total mass of (A) and (B) is less than 0.01% by mass, the antibacterial effect of the obtained composition becomes poor. On the other hand, (A) and (B)
Since the ratio of (B) to the total mass of 5% by mass already exhibits a sufficient antibacterial effect, even if the ratio is further increased, the antibacterial effect does not change, and only the absorption performance decreases.
Therefore, the composition of the present invention must be added in a large amount in order to secure a certain absorption performance by applying to an absorbent article, which is not economical.
【００１４】本発明の、（Ｂ）が（Ａ）に内蔵あるいは
担持された抗菌性吸水剤組成物の製造法としては、例え
ば、下記（１）〜（５）が挙げられる。 （１）水を吸収させて得られる（Ａ）の含水ゲルに
（Ｂ）を混練し、乾燥、粉砕する方法。 （２）（Ａ）の製造工程で得られる含水ゲル状重合体に
（Ｂ）を混練し、乾燥、粉砕する方法。 （３）（Ｂ）の水性液あるいは水分散液を（Ａ）の粉末
に添加し混合して、加温することなく担持させる方法。 （４）あらかじめ（Ａ）の粉末と（Ｂ）を混合した後、
少量の水を添加して、乾燥することなく担持させる方
法。 （５）（Ｂ）の水性液あるいは水分散液を（Ａ）に添加
し、加温することなく混合する方法。 （Ａ）の製造工程で得られる重合液中に、（Ｂ）を分散
させてから重合し、乾燥、粉砕する方法によっても、
（Ａ）に（Ｂ）が内蔵あるいは担持された組成物が得ら
れるが、この方法では重合中に（Ｂ）の抗菌効果が失活
する場合があり好ましくない。好ましい製造法は、乾
燥、粉砕の工程が不要であるという点で、（３）、
（４）および（５）の方法である。The method for producing the antibacterial water-absorbing agent composition of the present invention in which (B) is incorporated or carried in (A) includes, for example, the following (1) to (5). (1) A method in which (B) is kneaded with a water-containing gel (A) obtained by absorbing water, dried and pulverized. (2) A method in which (B) is kneaded with the hydrogel polymer obtained in the production process of (A), dried and pulverized. (3) A method in which the aqueous liquid or aqueous dispersion of (B) is added to the powder of (A), mixed, and supported without heating. (4) After previously mixing the powder of (A) and (B),
A method in which a small amount of water is added and supported without drying. (5) A method in which the aqueous liquid or aqueous dispersion of (B) is added to (A) and mixed without heating. The method of dispersing (B) in the polymerization liquid obtained in the production process of (A), polymerizing, then drying and pulverizing,
Although a composition in which (B) is incorporated or carried in (A) is obtained, this method is not preferred because the antibacterial effect of (B) may be deactivated during polymerization. The preferred production method is that (3),
These are the methods (4) and (5).
【００１５】（１）〜（５）の方法において、水の存在
下あるいは非存在下で（Ａ）と（Ｂ）とを混合する工業
的な装置については特に限定はなく、従来から公知の装
置が使用できる。例えば、ニーダー、一軸あるいは双軸
の押し出し混合機、万能混合機、タイビュライザー、ナ
ウター型混合機、リボンブレンダー、コニカルブレンダ
ー、Ｖ型混合機、スクリュー式混合機などが挙げられ
る。In the methods (1) to (5), there is no particular limitation on an industrial apparatus for mixing (A) and (B) in the presence or absence of water. Can be used. Examples thereof include a kneader, a single-screw or twin-screw extrusion mixer, a universal mixer, a tie-bulizer, a Nauter-type mixer, a ribbon blender, a conical blender, a V-type mixer, a screw-type mixer, and the like.
【００１６】吸水性能と抗菌性能に加えて、粉体ハンド
リング性にも優れた性能を発現させる方法として、本発
明者らは、吸水性樹脂（Ａ）の粉末に抗菌成分（Ｂ）の
水溶液または水分散液を混合処理し、吸水性樹脂粉末の
表面近傍に抗菌成分を含浸または吸着させて担持させた
後に、微粒子状無機物質（Ｃ）を混合して（Ａ）の表面
に固着させる方法、または吸水性樹脂（Ａ）の含水ゲル
に抗菌成分（Ｂ）を混練し、乾燥、粉砕した後に微粒子
状無機物質（Ｃ）を混合して（Ａ）の表面に固着させる
方法が優れていることを見いだした。As a method of exhibiting excellent performance in powder handling in addition to water absorption performance and antibacterial performance, the present inventors have proposed that an aqueous solution of the antibacterial component (B) or a water-absorbent resin (A) is added to the powder of the water-absorbent resin (A). A method of mixing the aqueous dispersion, impregnating or adsorbing the antibacterial component in the vicinity of the surface of the water-absorbent resin powder and supporting it, and then mixing the particulate inorganic substance (C) to adhere to the surface of (A); Alternatively, a method of kneading the antibacterial component (B) into the hydrogel of the water-absorbent resin (A), drying and pulverizing, mixing the particulate inorganic substance (C), and fixing the mixture to the surface of (A) is excellent. Was found.
【００１７】微粒子状無機物質（Ｃ）としては、二酸化
ケイ素、酸化アルミニウム、酸化マグネシウム、ケイ酸
アルミニウム、ケイ酸マグネシウムなどの微粒状物が挙
げられる。（Ｃ）として好ましいものは、親水性二酸化
ケイ素である。特に好ましくは、乾式シリカと呼ばれ
る、一次粒子の平均粒径が５０〜４５０ｍμ、比表面積
が５０〜４５０ｍ2／ｇ、親水性度が７０％以上の親水
性二酸化ケイ素である。（Ｃ）の使用量は、抗菌性吸水
剤組成物に対して通常０．０５〜５質量％、好ましくは
０．１〜２質量％である。（Ｂ）が（Ａ）に内蔵あるい
は担持されたものを更に（Ｃ）で処理する工業的な装置
については特に限定はなく、従来から公知の装置が使用
できる。例えば、ニーダー、万能混合機、タイビュライ
ザー、ナウター型混合機、リボンブレンダー、コニカル
ブレンダー、Ｖ型混合機、スクリュー式混合機などが挙
げられる。（Ａ）をあらかじめ（Ｃ）で混合処理してお
き、その後に抗菌成分で処理すると、抗菌成分が（Ｃ）
に吸着され、抗菌成分を含んだ（Ｃ）が生成する。この
生成物は（Ａ）から分離しやすいことから、ハンドリン
グ時の発塵性が高くなったり、抗菌性能のバラツキが大
きくなったりする。また、（Ａ）の表面における（Ｃ）
の分布が不均一となること、および上記生成物の遊離に
よって（Ａ）の表面における（Ｃ）の固着量が低下する
ため、耐吸湿ブロッキング性（耐吸湿ブロッキング性が
劣ると高湿度条件下で吸水性樹脂同士がブロッキングし
やすくなり、粉体ハンドリング性が劣る結果となる）が
悪くなる。Examples of the particulate inorganic substance (C) include fine particles such as silicon dioxide, aluminum oxide, magnesium oxide, aluminum silicate and magnesium silicate. Preferred as (C) is hydrophilic silicon dioxide. Particularly preferred is a hydrophilic silicon dioxide called primary silica having an average primary particle diameter of 50 to 450 mμ, a specific surface area of 50 to 450 m 2 / g and a hydrophilicity of 70% or more. The amount of (C) used is usually 0.05 to 5% by mass, preferably 0.1 to 2% by mass, based on the antibacterial water-absorbing agent composition. There is no particular limitation on the industrial device for treating the component (B) incorporated or carried in the component (A) by the component (C), and a conventionally known device can be used. For example, a kneader, a universal mixer, a tie-bulizer, a Nauter-type mixer, a ribbon blender, a conical blender, a V-type mixer, a screw-type mixer and the like can be mentioned. If (A) is mixed in advance with (C) and then treated with an antibacterial component, the antibacterial component becomes (C)
(C) containing an antimicrobial component is generated. Since this product is easily separated from (A), dust generation during handling increases, and the dispersion of antibacterial performance increases. Further, (C) on the surface of (A)
Is uneven, and the amount of (C) fixed on the surface of (A) is reduced due to the release of the above-mentioned product. Water-absorbing resins are likely to be blocked with each other, resulting in poor powder handling properties).
【００１８】本発明の組成物には、必要により任意の工
程で増量剤、添加剤として有機質粉体（例えばパルプ粉
末、セルロース誘導体、天然多糖類など）、酸化防止
剤、界面活性剤、消臭剤、着色剤、香料などを配合する
ことができる。これらの量は抗菌性吸水剤組成物の質量
に対して通常１０質量％以下である。The composition of the present invention may contain, if necessary, a bulking agent, an organic powder (eg, pulp powder, cellulose derivative, natural polysaccharide, etc.), an antioxidant, a surfactant, a deodorant in optional steps. Agents, coloring agents, fragrances and the like can be added. These amounts are usually 10% by mass or less based on the mass of the antibacterial water-absorbing agent composition.
【００１９】本発明の抗菌性吸水剤組成物の形状および
粒度分布については特に限定はない。形状については、
粒状、顆粒状、造粒状、リン片状、塊状、パール状、微
粉末状などのいずれの形状であってもよい。粒度分布に
ついても特に限定はなく、通常９０質量％以上が０．０
５〜１ｍｍの粒度分布、好ましくは９０質量％以上が
０．１〜０．９ｍｍの粒度分布である。The shape and particle size distribution of the antibacterial water-absorbing composition of the present invention are not particularly limited. For the shape,
Any shape such as a granular shape, a granular shape, a granulated shape, a flake shape, a lump shape, a pearl shape, a fine powder shape and the like may be used. There is also no particular limitation on the particle size distribution.
The particle size distribution is 5 to 1 mm, preferably 90% by mass or more is 0.1 to 0.9 mm.
【００２０】本発明の抗菌性吸水剤組成物を各種の吸収
性物品に適用することにより、吸収効果と抗菌効果の双
方を同時に満足する物品が得られる。吸収性物品に抗菌
性吸水剤組成物を適用する方法としては、抗菌性吸水剤
組成物が吸水性の支持体中に保持された層を形成してお
ればよく、例えば、 ・層状に配置されたパルプ、熱融着性繊維などの繊維状
物の層の間に散粒する方法、 ・パルプ、熱融着性繊維などの繊維状物と混合する方
法、 ・二枚以上の吸水紙や不織布でサンドイッチする方法な
どが挙げられる。吸収性物品に対する吸水性樹脂組成物
の添加量は吸収性物品の種類やサイズ、目標とする吸収
性能に応じて種々変化させることができる。吸収性物品
が紙おむつや失禁パッドの場合は、通常３〜２０ｇ／枚
であり、吸収性物品が生理用ナプキン、パンティーライ
ナー、母乳パッドなどの場合は、通常０．２〜３ｇ／個
である。二枚以上の吸水紙や不織布でサンドイッチした
シート状物に適用する場合は、通常１０〜８０ｇ／ｍ2
程度が適当である。By applying the antibacterial water-absorbing agent composition of the present invention to various absorbent articles, an article satisfying both the absorption effect and the antibacterial effect can be obtained. As a method of applying the antibacterial water-absorbing agent composition to the absorbent article, the antibacterial water-absorbing agent composition may form a layer held in a water-absorbing support. Pulp, a method of granulation between layers of fibrous materials such as heat-fusible fibers, a method of mixing with fibrous materials such as pulp, heat-fusible fibers, two or more sheets of water-absorbing paper or nonwoven fabric And the like. The amount of the water-absorbing resin composition added to the absorbent article can be variously changed according to the type and size of the absorbent article and the target absorption performance. When the absorbent article is a disposable diaper or incontinence pad, the weight is usually 3 to 20 g / sheet, and when the absorbent article is a sanitary napkin, panty liner, breast milk pad, or the like, the weight is usually 0.2 to 3 g / piece. When applied to two or more sheets of water-absorbing paper or a sheet sandwiched by a nonwoven fabric, it is usually 10 to 80 g / m 2.
The degree is appropriate.
【００２１】[0021]
【実施例】以下、実施例および比較例により本発明をさ
らに説明するが、本発明はこれらに限定されるものでは
ない。抗菌性吸水剤組成物単体の吸収能、抗菌効果、お
よび抗菌性吸水剤組成物を使用した吸収性物品の効果確
認テストは下記の方法により測定した。以下特に定めな
い限り、％は質量％を示す。The present invention will be further described with reference to the following examples and comparative examples, but the present invention is not limited to these examples. The absorption ability and antibacterial effect of the antibacterial water-absorbing agent composition alone, and the effect confirmation test of the absorbent article using the antibacterial water-absorbing agent composition were measured by the following methods. Hereinafter, unless otherwise specified,% indicates mass%.
【００２２】（１）吸収能：２５０メッシュのナイロン
ネット製ティーバッグに試料１ｇを入れ、これを過剰の
生理食塩水（０．９％食塩水）中に１時間浸して吸収さ
せた後、引き上げて１５分間水切りを行って増加質量を
測定する。この増加質量を吸収量とした。 （２）抗菌性吸水剤組成物の抗菌性テスト：３００ｃｃ
フラスコに感受性ブイヨン培地３.４５ｇと水１５０ｍ
ｌを入れ溶解した後、オートクレーブ滅菌する。上記培
地に試験試料１ｇを添加し攪拌しながら膨潤させた後、
菌数が１×１０6個／ｍｌとなるように大腸菌を接種し
た。このサンプルを３７℃で振とう培養して、２時間後
および１０時間後にサンプリングし、必要に応じて滅菌
生理食塩水にて段階希釈を行う。菌数測定は、混和平面
培養法にて行う。上記サンプリング品または希釈品を滅
菌シャーレに１ｍｌづつ入れた後、寒天培地を２０ｍｌ
注ぎ、シャーレ上に均一に分散固化させ、３７℃で２日
間培養する。培養後にコロニーカウントし、希釈倍率を
かけて生菌数とする。なお、ブランクとして、試験試料
を添加せず大腸菌のみを接種した場合の生菌数は、２時
間後で５×１０8個／ｍｌ、１０時間後で６×１０9個／
ｍｌであった。同様にしてアンモニア産生菌についても
抗菌性をテストした。なお、ブランクとして、試験試料
を添加せずアンモニア産生菌のみを接種した場合の生菌
数は、２時間後で８×１０8個／ｍｌ、１０時間後で９
×１０9個／ｍｌであった。 （３）発塵性：粉塵計測器を接続したガラス性吸引瓶
（容量；５００ｍｌ）の中央部に試料５０ｇを三角ロー
トを通して落下させ、落下によって発生した粉塵量を粉
塵計測器に吸引し、その個数を測定する。１分間当たり
にカウントした粉塵個数を発塵性（単位：ＣＰＭ）とす
る。 （４）抗菌性吸水剤組成物を適用した吸収性物品の効果
確認テスト： ・吸収性物品の作成：１４ｃｍ×３５ｃｍの長方形に裁
断したポリエチレンシートに、同じ大きさのティシュペ
ーパーと坪量１００ｇ／ｍ2のフラッフパルプを重ね
る。次いで試料１０ｇをフラッフパルプ上に均一に散布
し、更に坪量５０ｇ／ｍ2のフラッフパルプとティッシ
ュペーパーおよび不織布をこの順で重ねる。この積層物
を５ｋｇ／ｃｍ2の圧力で９０秒間プレスすることによ
りモデル紙おむつを作成する。 ・悪臭防止効果テスト：抗菌性吸水剤組成物を適用した
吸収性物品の中央に新鮮尿８０ｍｌを加え、５リットル
の広口瓶に入れて密閉し、４０℃に設定した恒温槽内で
１０時間保管する。その後、無臭室内で瓶の蓋を開けて
臭いを嗅ぎ、次の６段階で臭気強度を評価する。評価は
Ｔ＆Ｔオルファクトメーター法にて臭気判定能力確認済
みの１０人のパネラーで実施し、平均値を求める。 ０：無臭 １：やっと感知できる臭い（感知イキ値濃度） ２：何の臭いかわかる弱い臭い（認知イキ値濃度） ３：楽に感知できる臭い ４：強い臭い ５：強烈な臭い （５）吸収性物品の性能テスト： ・吸収量：吸収体を大過剰の生理食塩水中に３０分間浸
漬し、その後金網上に乗せ、１０Kgの荷重をかけ２０分
間水切りした後の増加質量を吸収量とする。 ・リウェット量：人工尿５０ｍｌをモデル紙おむつの中
央部に注ぐ。１０分後、紙おむつの中央部に１０ｃｍ×
１０ｃｍの濾紙１０枚を重ねて置き、濾紙の上から３．
５ｋｇの荷重を乗せる。３分後に濾紙の増加質量を測定
し、この値をリウェット量とする。リウェット量が少な
いほど吸収性物品の性能（表面ドライ感）は良好であ
る。(1) Absorption capacity: 1 g of a sample is placed in a 250 mesh nylon net tea bag, immersed in excess physiological saline (0.9% saline) for 1 hour, absorbed, and then pulled up. Drain for 15 minutes and measure the increased mass. This increased mass was taken as the absorption amount. (2) Antibacterial test of antibacterial water-absorbing agent composition: 300 cc
3.45 g of sensitive bouillon medium and 150 m of water in the flask
After adding and dissolving, autoclave sterilization is performed. After adding 1 g of a test sample to the above medium and swelling while stirring,
Escherichia coli was inoculated so that the number of bacteria was 1 × 10 6 cells / ml. The sample is cultured with shaking at 37 ° C., sampled after 2 hours and 10 hours, and if necessary, serially diluted with sterile physiological saline. The number of bacteria is measured by a mixed plane culture method. After placing the above sampled or diluted product in a sterile petri dish in 1 ml portions, add 20 ml of agar medium.
Pour, uniformly disperse and solidify on a Petri dish, and culture at 37 ° C for 2 days. After culturing, colonies are counted and multiplied by a dilution ratio to obtain the number of viable bacteria. As a blank, the viable cell count when only E. coli was inoculated without adding the test sample was 5 × 10 8 cells / ml after 2 hours and 6 × 10 9 cells / ml after 10 hours.
ml. Similarly, the antibacterial properties of the ammonia-producing bacteria were tested. As a blank, the number of viable cells when inoculating only the ammonia-producing bacteria without adding the test sample was 8 × 10 8 cells / ml after 2 hours and 9 cells after 10 hours.
× 10 9 cells / ml. (3) Dust-generating property: 50 g of a sample was dropped through a triangular funnel into the center of a glass suction bottle (capacity: 500 ml) connected to a dust measuring instrument, and the amount of dust generated by the drop was sucked into the dust measuring instrument. Measure the number. The number of dust particles counted per minute is defined as dust generation (unit: CPM). (4) Test for confirming the effect of an absorbent article to which the antibacterial water-absorbing agent composition has been applied: Preparation of an absorbent article: A 14 cm × 35 cm polyethylene sheet cut into a rectangle, a tissue paper of the same size and a basis weight of 100 g / overlaying the fluff pulp of m 2. Next, 10 g of the sample is uniformly spread on the fluff pulp, and the fluff pulp having a basis weight of 50 g / m 2 , tissue paper and nonwoven fabric are laminated in this order. This laminate is pressed at a pressure of 5 kg / cm 2 for 90 seconds to produce a model paper diaper. -Odor prevention effect test: 80 ml of fresh urine was added to the center of the absorbent article to which the antibacterial water-absorbing agent composition was applied, placed in a 5 liter wide-mouth bottle, sealed, and stored in a thermostat set at 40 ° C for 10 hours. I do. Thereafter, the lid of the bottle is opened in the odorless room to smell the odor, and the odor intensity is evaluated in the following six steps. Evaluation is carried out by 10 panelists whose odor judgment ability has been confirmed by the T & T Olfactometer method, and the average value is obtained. 0: No odor 1: Smell that can be detected at last (perceived odor value density) 2: Weak odor that can tell what odor is (cognitive odor value density) 3: Odor that can be easily detected 4: Strong odor 5: Strong odor (5) Absorption Performance test of the article: Absorption: The absorbent is immersed in a large excess of physiological saline for 30 minutes, then placed on a wire mesh, subjected to a load of 10 kg and drained for 20 minutes, and the increased mass is taken as the absorption. -Rewetting amount: 50 ml of artificial urine is poured into the center of the model paper diaper. 10 minutes later, 10cm ×
2. Place 10 pieces of 10 cm filter paper on top of each other and
Apply a load of 5 kg. After 3 minutes, the increased mass of the filter paper is measured, and this value is defined as the re-wet amount. The smaller the rewetting amount, the better the performance (surface dry feeling) of the absorbent article.
【００２３】実施例１ 容量１リットルのガラス製反応容器にアクリル酸ナトリ
ウム７６．６ｇ、アクリル酸２３ｇ、Ｎ，Ｎ'-メチレン
ビスアクリルアミド０．４ｇおよび脱イオン水２９５ｇ
を仕込み、攪拌・混合しながら内容物の温度を５℃に保
った。内容物に窒素を流入して溶存酸素量を１ｐｐｍ以
下とした後、過酸化水素の１％水溶液１ｇ、アスコルビ
ン酸の０．２％水溶液１．２ｇおよび２，２'-アゾビス
アミジノプロパンジハイドロクロライドの２％水溶液
２．４ｇを添加して重合を開始させ、約５時間重合する
ことにより吸水性樹脂濃度２５％の含水ゲル状重合体
（Ｉ）を得た。この含水ゲル状重合体１００部をニーダ
ーで混練しながら、ジデシルジメチルアンモニウムグル
コン酸塩の３０％水溶液０．１７部を添加して、均一に
混練した。この混合物を９０℃で減圧乾燥し、ピンミル
で粉砕した後、８５０〜１５０ミクロンの粒度が約９５
％となるように粒度調整した。この物に、微粉状シリカ
（日本アエロジル社製：アエロジル２００）０．１部を
添加し、３０分間ナウターミキサーで混合して抗菌性吸
水剤組成物を得た。この抗菌性吸水剤組成物の性能
測定結果を表１および表２に示す。EXAMPLE 1 76.6 g of sodium acrylate, 23 g of acrylic acid, 0.4 g of N, N'-methylenebisacrylamide and 295 g of deionized water were placed in a 1 liter glass reaction vessel.
And the temperature of the contents was kept at 5 ° C. while stirring and mixing. After flowing nitrogen into the contents to reduce the amount of dissolved oxygen to 1 ppm or less, 1 g of a 1% aqueous solution of hydrogen peroxide, 1.2 g of a 0.2% aqueous solution of ascorbic acid and 2,2′-azobisamidinopropane dihydro The polymerization was started by adding 2.4 g of a 2% aqueous solution of chloride, and the polymerization was carried out for about 5 hours to obtain a hydrogel polymer (I) having a water-absorbing resin concentration of 25%. While kneading 100 parts of the hydrogel polymer with a kneader, 0.17 parts of a 30% aqueous solution of didecyldimethylammonium gluconate was added and kneaded uniformly. The mixture was dried at 90 ° C. under reduced pressure and pulverized with a pin mill.
% Was adjusted. To this product, 0.1 part of finely divided silica (Aerosil 200, manufactured by Nippon Aerosil Co., Ltd.) was added and mixed with a Nauta mixer for 30 minutes to obtain an antibacterial water-absorbing composition. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２４】実施例２ 実施例１で得られた含水ゲル状重合体（Ｉ）１００部を
ニーダーで混練しながら、クロルヘキシジン０．１７部
を水１０部に分散した分散液を添加して均一に混練し
た。この混合物を９０℃で減圧乾燥し、ピンミルで粉砕
した後、８５０〜１５０ミクロンの粒度が約９５％とな
るように粒度調整した。この物に実施例１で使用したの
と同じ微粉状シリカを０．１部添加し、３０分間ナウタ
ーミキサーで混合して抗菌性吸水剤組成物を得た。こ
の抗菌性吸水剤組成物の性能測定結果を表１および表
２に示す。Example 2 While kneading 100 parts of the hydrogel polymer (I) obtained in Example 1 with a kneader, a dispersion obtained by dispersing 0.17 part of chlorhexidine in 10 parts of water was added and uniformly mixed. Kneaded. The mixture was dried at 90 ° C. under reduced pressure, pulverized with a pin mill, and then adjusted to a particle size of 850 to 150 μm of about 95%. To this product, 0.1 part of the same finely divided silica as used in Example 1 was added and mixed with a Nauter mixer for 30 minutes to obtain an antibacterial water-absorbing agent composition. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２５】実施例３ 市販の吸水性樹脂（三洋化成工業製、「サンウェットＩ
Ｍ−１０００」；デンプン−アクリル酸ナトリウム塩共
重合体の架橋物；中和度７０モル％）１００部に水４０
０部を吸収させて含水ゲル状物（ＩＩ）を得た後、実施
例１と同じジデシルジメチルグルコン酸塩の３０％水溶
液０．７部を添加して均一に混練した。この含水ゲルを
ニーダーで混練しながら、実施例１と同様にして乾燥、
粉砕、粒度調整した物に、微粉状シリカ０．４部を添加
し、３０分間ナウターミキサーで混合して抗菌性吸水剤
組成物を得た。この抗菌性吸水剤組成物の性能測定
結果を表１および表２に示す。Example 3 A commercially available water-absorbent resin (manufactured by Sanyo Chemical Industries, "Sunwet I")
M-1000 ”; crosslinked product of starch-sodium acrylate copolymer; degree of neutralization 70 mol%)
After absorbing 0 parts to obtain a hydrogel product (II), 0.7 parts of a 30% aqueous solution of didecyldimethylgluconate same as in Example 1 was added and uniformly kneaded. While kneading the hydrogel with a kneader, drying in the same manner as in Example 1,
To the pulverized and particle size-adjusted product, 0.4 part of finely divided silica was added and mixed with a Nauta mixer for 30 minutes to obtain an antibacterial water-absorbing agent composition. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２６】実施例４ 市販の吸水性樹脂（三洋化成工業製、「サンウェットＩ
Ｍ−５０００Ｄ」；架橋ポリアクリル酸の７２モル％中
和物）１００部を家庭用ミキサーで高速攪拌しながら、
ジデシルジメチルアンモニウムグルコン酸塩の３０％水
溶液０．７部を添加して室温で均一に混練した後、微粉
状シリカを０．４部添加し、３０分間ナウターミキサー
で混合して抗菌性吸水剤組成物を得た。この抗菌性吸
水剤組成物の性能測定結果を表１および表２に示す。Example 4 A commercially available water-absorbent resin (manufactured by Sanyo Chemical Industries, "Sunwet I")
M-5000D "; 72 mol% neutralized product of cross-linked polyacrylic acid)
After adding 0.7 part of a 30% aqueous solution of didecyldimethylammonium gluconate and kneading uniformly at room temperature, 0.4 part of finely divided silica is added and mixed with a Nauta mixer for 30 minutes to absorb antibacterial water. Agent composition was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２７】実施例５ 実施例４において、ジデシルジメチルアンモニウムグル
コン酸塩の３０％水溶液に代えて、クロルヘキシジンの
３０％水分散液を同量使用する以外は実施例４と同様に
して抗菌性吸水剤組成物を得た。この抗菌性吸水剤組
成物の性能測定結果を表１および表２に示す。Example 5 Antibacterial water absorption was carried out in the same manner as in Example 4, except that the same amount of a 30% aqueous chlorhexidine aqueous dispersion was used instead of the 30% aqueous solution of didecyldimethylammonium gluconate. Agent composition was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２８】実施例６ 実施例４において、ジデシルジメチルアンモニウムグル
コン酸塩の３０％水溶液に代えて、ポリヘキサメチレン
ビグアニジングルコン酸塩の３０％水分散液を同量使用
する以外は実施例４と同様にして抗菌性吸水剤組成物
を得た。この抗菌性吸水剤組成物の性能測定結果を表
１および表２に示す。Example 6 Example 4 was repeated except that the same amount of a 30% aqueous solution of polyhexamethylene biguanidine gluconate was used in place of the 30% aqueous solution of didecyldimethylammonium gluconate. In the same manner as in the above, an antibacterial water-absorbing composition was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition.
【００２９】実施例７および８ 実施例４において、ジデシルジメチルアンモニウムグル
コン酸塩の３０％水溶液の添加量を０．１５部（実施例
７）、あるいは１．７部（実施例８）に代える以外は実
施例４と同様にして抗菌性吸水剤組成物およびを得
た。これらの抗菌性吸水剤組成物の性能測定結果を表１
および表２に示す。Examples 7 and 8 In Example 4, the addition amount of a 30% aqueous solution of didecyldimethylammonium gluconate was changed to 0.15 part (Example 7) or 1.7 parts (Example 8). Except for the above, an antibacterial water-absorbing agent composition and a composition were obtained in the same manner as in Example 4. Table 1 shows the performance measurement results of these antibacterial water-absorbing agent compositions.
And Table 2.
【００３０】実施例９〜１４ 実施例１及び実施例４〜８で得られた抗菌性吸水剤組成
物を各々の坪量が２００ｇ/ｍ2である２層のパルプ間に
６０ｇ/ｍ2の割合で均一にサンドイッチし、１０ｋｇ／
ｍ2の圧力でプレスした。この下層にポリエチレンフィ
ルムを、上層にポリプロピレン繊維製不織布を重ね合わ
せた後、１５ｃｍ（幅）、３５ｃｍ長さのサイズに切断
することにより吸収性物品を作成した。実施例１の抗菌
性吸水剤組成物、実施例４の抗菌性吸水剤組成物、
実施例５の抗菌性吸水剤組成物、実施例６の抗菌性吸
水剤組成物、実施例７の抗菌性吸水剤組成物および
実施例８の抗菌性吸水剤組成物を使用して吸収性物品
（ａ）、（ｂ）（ｃ）、（ｄ）、（ｅ）および（ｆ）を
得た。これらの吸収性物品の性能測定結果を表３に示
す。Examples 9 to 14 The antibacterial water-absorbing agent compositions obtained in Examples 1 and 4 to 8 were mixed with a pulp having a basis weight of 200 g / m 2 between two layers of 60 g / m 2 . Sandwich uniformly at a rate of 10kg /
Pressed at a pressure of m 2 . After laminating a polyethylene film on the lower layer and a nonwoven fabric made of polypropylene fiber on the upper layer, the absorbent layer was cut into a size of 15 cm (width) and 35 cm length to produce an absorbent article. The antibacterial water-absorbing composition of Example 1, the antibacterial water-absorbing composition of Example 4,
Absorbent articles using the antibacterial water absorbing composition of Example 5, the antibacterial water absorbing composition of Example 6, the antibacterial water absorbing composition of Example 7, and the antibacterial water absorbing composition of Example 8. (A), (b), (c), (d), (e) and (f) were obtained. Table 3 shows the performance measurement results of these absorbent articles.
【００３１】比較例１ 実施例１で得た含水ゲル状重合体（Ｉ）を９０℃で減圧
乾燥し、ピンミルで粉砕した後、８５０〜１５０ミクロ
ンの粒度が約９５％となるように粒度調整した。この物
に微粉状シリカ０．５部を添加し、３０分間ナウターミ
キサーで混合して吸水性樹脂粉粒体［１］を得た。この
性能測定結果を表１および表２に示す。Comparative Example 1 The hydrogel polymer (I) obtained in Example 1 was dried at 90 ° C. under reduced pressure and pulverized by a pin mill, and then the particle size was adjusted so that the particle size of 850 to 150 μm became about 95%. did. To this product was added 0.5 part of finely divided silica and mixed with a Nauta mixer for 30 minutes to obtain a water-absorbent resin powder [1]. Tables 1 and 2 show the performance measurement results.
【００３２】比較例２および３ 「サンウェットＩＭ−１０００」および「サンウェット
ＩＭ−５０００Ｄ」の性能測定結果を比較例２および比
較例３として表１および表２に示す。Comparative Examples 2 and 3 The performance measurement results of "Sunwet IM-1000" and "Sunwet IM-5000D" are shown in Tables 1 and 2 as Comparative Examples 2 and 3, respectively.
【００３３】比較例４ 実施例１においてジデシルジメチルアンモニウムグルコ
ン酸塩の３０％水溶液に代えて、セチルトリメチルアン
モニウムクロライドの３０％水溶液を同量使用する以外
は実施例１と同様にして比較の抗菌性吸水剤組成物
［４］を得た。この抗菌性吸水剤組成物［２］の性能測
定結果を表１および表２に示す。Comparative Example 4 A comparative antibacterial agent was prepared in the same manner as in Example 1 except that the same amount of a 30% aqueous solution of cetyltrimethylammonium chloride was used instead of the 30% aqueous solution of didecyldimethylammonium gluconate. A water absorbing agent composition [4] was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing composition [2].
【００３４】比較例５ 実施例３においてジデシルジメチルアンモニウムグルコ
ン酸塩の３０％水溶液に代えて、セチルトリメチルアン
モニウムクロライドの３０％水溶液を同量使用する以外
は実施例１と同様にして比較の抗菌性吸水剤組成物
［５］を得た。この抗菌性吸水剤組成物［５］の性能測
定結果を表１および表２に示す。Comparative Example 5 Comparative antibacterial treatment was performed in the same manner as in Example 1 except that the same amount of a 30% aqueous solution of cetyltrimethylammonium chloride was used instead of the 30% aqueous solution of didecyldimethylammonium gluconate in Example 3. A water absorbing agent composition [5] was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing composition [5].
【００３５】比較例６〜８ 実施例４においてジデシルジメチルアンモニウムグルコ
ン酸塩の３０％水溶液に代えて、セチルトリメチルアン
モニウムクロライドの３０％水溶液を使用し、その使用
量を０．１７部（比較例６）、０．７部（比較例７）あ
るいは、１．７部（比較例８）にする以外は実施例４と
同様にして抗菌性吸水剤組成物［６］、［７］および
［８］を得た。これらの比較の抗菌性吸水剤組成物
［６］、［７］および［８］の性能測定結果を表１およ
び表２に示す。Comparative Examples 6 to 8 In Example 4, a 30% aqueous solution of cetyltrimethylammonium chloride was used in place of the 30% aqueous solution of didecyldimethylammonium gluconate, and the amount used was 0.17 parts (comparative example). 6), antibacterial water-absorbing agent compositions [6], [7] and [8] in the same manner as in Example 4 except that 0.7 parts (Comparative Example 7) or 1.7 parts (Comparative Example 8) is used. ] Was obtained. Tables 1 and 2 show the performance measurement results of these comparative antibacterial water-absorbing agent compositions [6], [7] and [8].
【００３６】比較例９ 実施例４において、市販の吸水性樹脂（三洋化成工業
製、「サンウェットＩＭ−５０００Ｄ」；架橋ポリアク
リル酸の７２モル％中和物）１００部に微粉状シリカを
０．５部添加して３０分間ナウターミキサーで混合した
後、家庭用ミキサーで高速攪拌しながら、ジデシルジメ
チルアンモニウムグルコン酸塩の３０％水溶液０．７部
を添加して均一に混練し、比較の抗菌性吸水剤組成物
［９］を得た。この抗菌性吸水剤組成物［９］の性能測
定結果を表１および表２に示す。Comparative Example 9 In Example 4, 100 parts of a commercially available water-absorbent resin (manufactured by Sanyo Chemical Industries, "Sunwet IM-5000D"; 72 mol% neutralized product of crosslinked polyacrylic acid) was mixed with 100 parts of finely divided silica. After adding 0.5 parts and mixing with a Nauter mixer for 30 minutes, 0.7 parts of a 30% aqueous solution of didecyldimethylammonium gluconate was added and uniformly kneaded while stirring at high speed with a household mixer. Thus, an antibacterial water-absorbing composition [9] was obtained. Tables 1 and 2 show the performance measurement results of the antibacterial water-absorbing agent composition [9].
【００３７】比較例１０〜１４ 実施例９〜１４に記載の内容と同様にして比較例１の吸
水性樹脂粉粒体［１］、比較例２の市販の吸水性樹脂、
比較例３の市販の吸水性樹脂、比較例７の抗菌性吸水剤
組成物［７］または比較例９の抗菌性吸水剤組成物
［９］を使用して比較の吸収性物品（ｇ）、（ｈ）、
（ｉ）、（ｊ）および（ｋ）を得た。これらの比較の吸
収性物品の性能測定結果を表３に示す。Comparative Examples 10 to 14 The water-absorbent resin particles [1] of Comparative Example 1 and the commercially available water-absorbent resin of Comparative Example 2 were prepared in the same manner as described in Examples 9 to 14.
Comparative absorbent articles (g) using the commercially available water-absorbent resin of Comparative Example 3, the antibacterial water-absorbing composition [7] of Comparative Example 7, or the antibacterial water-absorbing composition [9] of Comparative Example 9; (H),
(I), (j) and (k) were obtained. Table 3 shows the performance measurement results of these comparative absorbent articles.
【００３８】[0038]
【表１】 [Table 1]
【００３９】[0039]
【表２】 [Table 2]
【００４０】[0040]
【表３】 [Table 3]
【００４１】[0041]
【発明の効果】本発明の抗菌性吸水剤組成物は次のよう
な特長および効果を有する。 吸収機能のみならず、優れた抗菌機能を同時に発現す
る。 抗菌成分が、吸水性樹脂に吸収された尿、血液、体液
などに含まれる有機物が菌類、微生物、バクテリアなど
によって分解、腐敗するのを抑制することができる。 腐敗が抑制される結果、悪臭の発生が少ない。 （Ａ）と（Ｂ）との粉体混合物とは異なり、振動や衝
撃によって両者の分離を生じたり、吸収性物品に適用し
た際に吸収性物品内で吸水性樹脂と抗菌成分とが遍在を
起こす心配が無い。 発塵性が低く、耐吸湿ブロッキング性にも優れた組成
物が得られることから、ハンドリング性が良好である。 従来の吸水性樹脂と同様の操作で吸収性物品に適用す
ることができる。 紙おむつ、生理用品などの吸収性物品に適用すること
により、吸収性物品に抗菌機能を付与することができて
悪臭の発生を抑制し、皮膚刺激やかぶれの発生が少なく
なると共に、吸収性物品の性能も良好である。 （Ａ）の含水ゲルに（Ｂ）を混練し、乾燥、粉砕す
る、（Ｂ）の水性液あるいは水分散液を（Ａ）の粉末に
添加し混合して、加温乾燥することなく担持させる、あ
らかじめ（Ａ）の粉末と（Ｂ）を混合した後、少量の水
を添加して、加温乾燥することなく担持させる、（Ｂ）
を（Ａ）の粉末に添加して混合処理した後に、微粒子状
無機物質で処理するといった簡単な操作で製造すること
ができる。The antibacterial water-absorbing composition of the present invention has the following features and effects. It has excellent antibacterial function as well as absorption function. The antibacterial component can suppress decomposition and decay of organic matter contained in urine, blood, body fluid, and the like absorbed by the water-absorbent resin by fungi, microorganisms, bacteria, and the like. As a result of suppression of decay, generation of offensive odor is small. Unlike the powder mixture of (A) and (B), vibration and impact may cause separation of the two or the water-absorbent resin and the antimicrobial component may be ubiquitous in the absorbent article when applied to the absorbent article There is no need to worry. Since a composition having low dusting properties and excellent moisture blocking resistance is obtained, handling properties are good. The same operation as that of a conventional water-absorbent resin can be applied to an absorbent article. By applying it to absorbent articles such as disposable diapers and sanitary products, it is possible to impart an antibacterial function to the absorbent articles, suppress the generation of odors, reduce the occurrence of skin irritation and rash, The performance is also good. (B) is kneaded with the hydrogel of (A), dried and pulverized. The aqueous liquid or aqueous dispersion of (B) is added to the powder of (A), mixed and supported without heating and drying. After the powder of (A) and (B) are mixed in advance, a small amount of water is added, and the mixture is supported without heating and drying (B)
Can be produced by a simple operation such as adding to the powder of (A), mixing and then treating with a particulate inorganic substance.
【００４２】上記効果を奏することから、本発明の抗菌
性吸水剤組成物は、大人および子供用の紙おむつ、失禁
者用パッド、生理用ナプキン、パンティーライナー、母
乳パッド、産褥マット、医療用アンダーパッドなど、各
種の吸収性物品に特に有用である。さらに、ペット尿や
廃血液などの腐敗により悪臭を発生する各種体液のゲル
化剤や排泄物処理剤に有用であり、ペット用シート、ド
リップ吸収材などのシート状あるいはテープ状の吸収性
物品を製造する際にも有用である。その他、吸水性樹脂
に水を吸水させたゲルを利用する用途（例えば、保冷
材、人工雪、ウオーターベッドなど）や、ヘドロ固化
剤、結露防止壁材など腐敗により悪臭の発生を伴う用途
にも有用である。Because of the above effects, the antibacterial water-absorbing composition of the present invention can be used for disposable diapers for adults and children, incontinent pads, sanitary napkins, panty liners, breast milk pads, puerperium mats, medical underpads It is especially useful for various absorbent articles. Furthermore, it is useful as a gelling agent for various bodily fluids that generate odors due to decay of pet urine and waste blood, and an excrement disposal agent. It is also useful in manufacturing. In addition, it is also used for applications that use gels made of water-absorbent resin with water absorbed (for example, cold insulators, artificial snow, water beds, etc.), and applications that generate odor due to decay, such as sludge solidifying agents and anti-condensation wall materials. Useful.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ａ６１Ｆ 13/49 Ｃ０８Ｌ 33/02 Ｃ０８Ｋ 5/19 Ａ４１Ｂ 13/02 Ｎ 5/34 Ａ６１Ｆ 13/18 Ｂ Ｃ０８Ｌ 33/02 審査官 豊永 茂弘 (56)参考文献 特開 平３−59075（ＪＰ，Ａ) 特開 平２−225404（ＪＰ，Ａ) 特開 平３−249725（ＪＰ，Ａ) 特開 平７−10715（ＪＰ，Ａ) 特開 平５−179053（ＪＰ，Ａ) 特開 平５−43409（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 20/26 A61F 13/15 C08K 5/00 C08K 5/19 C08K 5/34 C08L 33/02 C08L 101/00 A01N 37/02 A01N 37/12 A01N 47/44 G02C 5/00 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification code FI A61F 13/49 C08L 33/02 C08K 5/19 A41B 13/02 N 5/34 A61F 13/18 B C08L 33/02 Examiner Toyonaga Shigehiro (56) References JP-A-3-59075 (JP, A) JP-A-2-225404 (JP, A) JP-A-3-249725 (JP, A) JP-A-7-10715 (JP, A) JP-A-5-179053 (JP, A) JP-A-5-43409 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01J 20/26 A61F 13/15 C08K 5/00 C08K 5/19 C08K 5/34 C08L 33/02 C08L 101/00 A01N 37/02 A01N 37/12 A01N 47/44 G02C 5/00
Claims (9)
単位とする水不溶性の吸水性樹脂であり、且つ、アクリ
ル酸成分がアクリル酸成分とアクリル酸塩成分の合計に
対して２０〜５０モル％である吸水性樹脂（Ａ）の粉末
に、クロルヘキシジン、ポリメチレンビグアニジン有機
酸塩化合物及び炭素数が６〜１２の脂肪族アルキル基を
分子内に少なくとも１個有する第４級アンモニウム有機
酸塩化合物からなる群から選ばれる少なくとも１種の抗
菌成分（Ｂ）が、内蔵又は担持されてなる抗菌性吸水剤
組成物。1. A water-insoluble water-absorbent resin containing acrylic acid and acrylate as main constituent units, and an acrylic acid component in an amount of 20 to 50 mol% based on the total amount of the acrylic acid component and the acrylate salt component. Chlorhexidine, a polymethylenebiguanidine organic acid salt compound and a quaternary ammonium organic acid salt compound having at least one aliphatic alkyl group having 6 to 12 carbon atoms in the molecule thereof in the powder of the water absorbent resin (A). An antibacterial water-absorbing composition comprising at least one antibacterial component (B) selected from the group consisting of:
００：（０．０１〜５）である請求項１記載の組成物。2. The ratio between (A) and (B) is 1 based on mass.
00: (0.01 to 5).
肪族アルキル基を分子内に少なくとも１個有する第４級
アンモニウム基をカチオンとし、脂肪族オキシカルボン
酸もしくは脂肪族ポリカルボン酸を対アニオンとする第
４級アンモニウム有機酸塩化合物である請求項１または
２記載の組成物。3. The antimicrobial component (B) has a quaternary ammonium group having at least one aliphatic alkyl group having 6 to 12 carbon atoms in the molecule as a cation, and is an aliphatic oxycarboxylic acid or an aliphatic polycarboxylic acid. The composition according to claim 1 or 2, which is a quaternary ammonium organic acid salt compound having a counter anion.
持されたものの表面に、更に微粒子状無機物（Ｃ）が固
着してなる請求項１〜３の何れか記載の組成物。4. The composition according to claim 1, wherein the fine particle inorganic substance (C) is further fixed on the surface of the powder of (A) in which (B) is incorporated or carried.
造するに当たり、該吸水性樹脂（Ａ）の粉末と該抗菌成
分（Ｂ）の水溶液または水分散液とを加温することなく
混合処理した後、微粒子状無機物質（Ｃ）を混合して
（Ａ）の表面に固着させることを特徴とする抗菌性吸水
剤組成物の製法。5. In producing the antibacterial water-absorbing agent composition according to claim 4, the powder of the water-absorbing resin (A) and the aqueous solution or dispersion of the antibacterial component (B) are not heated. A method for producing an antibacterial water-absorbing agent composition, which comprises mixing and fixing a particulate inorganic substance (C) to the surface of (A).
るに当たり、該吸水性樹脂（Ａ）の含水ゲルに該抗菌成
分（Ｂ）を混練し、乾燥、粉砕した後、微粒子状無機物
質（Ｃ）を混合して（Ａ）の表面に固着させることを特
徴とする抗菌性吸水剤組成物の製法。6. To obtain the antibacterial water-absorbing agent composition according to claim 4, the antibacterial component (B) is kneaded with a water-containing gel of the water-absorbent resin (A), dried and pulverized, and then finely divided inorganic particles. A method for producing an antibacterial water-absorbing agent composition, comprising mixing a substance (C) and fixing the mixture to the surface of (A).
ｍμであり、比表面積５０〜４５０ｍ2／ｇの親水性二
酸化ケイ素であり、（Ｃ）の量が、（Ａ）と（Ｂ）の合
計質量に対して、０．００５〜５質量％である請求項５
または６記載の製法。7. The method according to claim 1, wherein (C) has an average primary particle size of 5 to 50.
mμ, and is a hydrophilic silicon dioxide having a specific surface area of 50 to 450 m 2 / g, and the amount of (C) is 0.005 to 5% by mass based on the total mass of (A) and (B). Claim 5
Or the manufacturing method of 6.
水剤組成物が、吸水性の繊維状支持体中に保持された層
を有する吸収性物品。8. An absorbent article comprising the antibacterial water-absorbing composition according to any one of claims 1 to 4 having a layer held in a water-absorbing fibrous support.
た抗菌性吸水剤組成物が、吸水性の繊維状支持体中に保
持された層を有する吸収性物品。9. An absorbent article having a layer in which the antibacterial water-absorbing agent composition produced by the method according to claim 5 is held in a water-absorbing fibrous support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8281785A JP3044367B2 (en) | 1995-11-13 | 1996-10-02 | Antimicrobial water-absorbing composition and method for producing the same |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31951395 | 1995-11-13 | ||
| JP2192896 | 1996-01-12 | ||
| JP8-21928 | 1996-01-12 | ||
| JP7-319513 | 1996-01-12 | ||
| JP8281785A JP3044367B2 (en) | 1995-11-13 | 1996-10-02 | Antimicrobial water-absorbing composition and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09248454A JPH09248454A (en) | 1997-09-22 |
| JP3044367B2 true JP3044367B2 (en) | 2000-05-22 |
Family
ID=27283631
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|---|---|---|---|
| JP8281785A Expired - Fee Related JP3044367B2 (en) | 1995-11-13 | 1996-10-02 | Antimicrobial water-absorbing composition and method for producing the same |
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