JP2016187549A - Deodorant material and absorbent article comprising the same - Google Patents
Deodorant material and absorbent article comprising the same Download PDFInfo
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- JP2016187549A JP2016187549A JP2016056801A JP2016056801A JP2016187549A JP 2016187549 A JP2016187549 A JP 2016187549A JP 2016056801 A JP2016056801 A JP 2016056801A JP 2016056801 A JP2016056801 A JP 2016056801A JP 2016187549 A JP2016187549 A JP 2016187549A
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- 239000002781 deodorant agent Substances 0.000 title claims abstract description 24
- 239000002250 absorbent Substances 0.000 title claims description 32
- 230000002745 absorbent Effects 0.000 title claims description 32
- 239000000835 fiber Substances 0.000 claims abstract description 102
- 229920002770 condensed tannin Polymers 0.000 claims abstract description 57
- 229920001747 Cellulose diacetate Polymers 0.000 claims abstract description 56
- 235000011511 Diospyros Nutrition 0.000 claims abstract description 8
- 244000236655 Diospyros kaki Species 0.000 claims abstract description 8
- 230000001877 deodorizing effect Effects 0.000 claims description 44
- 235000019606 astringent taste Nutrition 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
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- 210000002700 urine Anatomy 0.000 description 16
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- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 10
- 238000004332 deodorization Methods 0.000 description 9
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- -1 3,4,5-trihydroxybenzoyl Chemical group 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 6
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- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 4
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- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 3
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- 229920002994 synthetic fiber Polymers 0.000 description 2
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- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 235000011468 Albizia julibrissin Nutrition 0.000 description 1
- 244000144730 Amygdalus persica Species 0.000 description 1
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000276438 Gadus morhua Species 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 206010021639 Incontinence Diseases 0.000 description 1
- 244000070406 Malus silvestris Species 0.000 description 1
- 240000005852 Mimosa quadrivalvis Species 0.000 description 1
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- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
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- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 235000021016 apples Nutrition 0.000 description 1
- 239000003212 astringent agent Substances 0.000 description 1
- 235000021015 bananas Nutrition 0.000 description 1
- 235000020279 black tea Nutrition 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 235000019516 cod Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 229920006239 diacetate fiber Polymers 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- TWNIBLMWSKIRAT-VFUOTHLCSA-N levoglucosan Chemical group O[C@@H]1[C@@H](O)[C@H](O)[C@H]2CO[C@@H]1O2 TWNIBLMWSKIRAT-VFUOTHLCSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
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Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
本発明は、縮合型タンニンを含有する消臭材とこの消臭材を備えた吸収性物品に関するものである。 The present invention relates to a deodorant material containing condensed tannin and an absorbent article provided with the deodorant material.
従来、縮合型タンニンの消臭効果が知られており、例えば特許文献１，２には、柿渋由来の縮合型タンニン（カキタンニン）を含有する消臭剤が開示され、特許文献３には、リンゴ、ナシ、またはモモの未熟果実由来の縮合型タンニンを含有する消臭剤が開示されている。 Conventionally, the deodorizing effect of condensed tannin is known. For example, Patent Documents 1 and 2 disclose a deodorant containing condensed tannin derived from persimmon astringent (oyster tannin). Deodorants containing condensed tannins derived from immature fruits of apples, pears or peaches are disclosed.
上記のように縮合型タンニンの消臭効果がこれまで知られていたが、その消臭効果をより高めることが求められる。本発明は前記事情に鑑みてなされたものであり、その目的は、縮合型タンニンを含有し、優れた消臭効果を示す消臭材を提供することにある。 As described above, the deodorizing effect of condensed tannin has been known so far, but it is required to further enhance the deodorizing effect. This invention is made | formed in view of the said situation, The objective is to provide the deodorizing material which contains condensed tannin and shows the outstanding deodorizing effect.
前記課題を解決することができた本発明の消臭材とは、セルロースジアセテート繊維と縮合型タンニンとを含有するところに特徴を有する。本発明の消臭材は、縮合型タンニンとセルロースジアセテート繊維の相乗作用により、優れた消臭効果を発揮する。 The deodorizing material of the present invention that has solved the above problems is characterized in that it contains cellulose diacetate fiber and condensed tannin. The deodorizing material of the present invention exhibits an excellent deodorizing effect due to the synergistic action of condensed tannin and cellulose diacetate fiber.
消臭効果を高める点から、縮合型タンニンは柿渋由来であることが好ましい。また、セルロースジアセテート繊維はトウ開繊繊維であることが好ましい。 From the viewpoint of enhancing the deodorizing effect, the condensed tannin is preferably derived from persimmon astringent. Moreover, it is preferable that a cellulose diacetate fiber is a tow opening fiber.
本発明はまた、本発明の消臭材を備えた吸収性物品も提供する。 The present invention also provides an absorbent article provided with the deodorant material of the present invention.
本発明の消臭材は、縮合型タンニンとセルロースジアセテート繊維の相乗作用により、優れた消臭効果を発揮する。 The deodorizing material of the present invention exhibits an excellent deodorizing effect due to the synergistic action of condensed tannin and cellulose diacetate fiber.
本発明の消臭材は、セルロースジアセテート繊維と縮合型タンニンとを含有するものである。本発明の消臭材は、縮合型タンニンとセルロースジアセテート繊維の相乗作用により、長時間にわたって優れた消臭効果を発揮することができる。 The deodorizing material of the present invention contains cellulose diacetate fiber and condensed tannin. The deodorizing material of the present invention can exhibit an excellent deodorizing effect over a long period of time due to the synergistic action of condensed tannin and cellulose diacetate fiber.
縮合型タンニンは、柿の実（柿渋）、未熟バナナ、ブドウの果皮や種子、栗皮、紅茶、イナゴマメやタマリンドやタラ等の豆類の種皮やサヤ、オークやケプラチョやミモザ等の樹皮や木質部等に含まれ、圧搾したり、溶媒（例えば、熱水やアルコール）で抽出することにより、濃縮物として得ることができる。 Condensed tannins include persimmon seeds (carp astringents), immature bananas, grape skins and seeds, chestnuts, black tea, carrot seeds such as carob, tamarind and cod and barks and woody parts such as oak, kepracho and mimosa It can be obtained as a concentrate by squeezing or extracting with a solvent (for example, hot water or alcohol).
縮合型タンニンは、フラバン骨格に複数の水酸基が結合した構造を有する化合物であることが好ましく、下記式（１）に示すフラバン骨格の構造式中、３位と５位と７位の炭素および２位に結合したフェニル基の３’位と４’位と５’位の炭素から選ばれる少なくとも２つ以上に水酸基が結合していることが好ましい。特に、縮合型タンニンとしては、少なくとも５位と７位と３’位と４’位の炭素に水酸基が結合したフラバン骨格を有する化合物であることが好ましく、天然物中にはこのような構造を有する縮合型タンニンが多く知られている。また、縮合型タンニンとして、フラバン骨格の３位の炭素に結合した水酸基がエステル化されているものも知られており、当該水酸基の水素原子がガロイル基（３，４，５−トリヒドロキシベンゾイル基）で置換された構造を有する化合物が知られている。縮合型タンニンは、フラバン骨格に結合した複数の水酸基によって、臭気の原因分子（臭気分子）と多点的に相互作用して、固定化できるものと考えられる。 The condensed tannin is preferably a compound having a structure in which a plurality of hydroxyl groups are bonded to the flavan skeleton. In the structural formula of the flavan skeleton represented by the following formula (1), the 3rd, 5th and 7th carbons and 2 It is preferable that a hydroxyl group is bonded to at least two or more selected from 3′-position, 4′-position and 5′-position carbon of the phenyl group bonded to the position. In particular, the condensed tannin is preferably a compound having a flavan skeleton in which a hydroxyl group is bonded to carbons at least at the 5-position, 7-position, 3′-position and 4′-position. Many condensed tannins are known. Further, a condensed tannin is also known in which a hydroxyl group bonded to the carbon at the 3-position of the flavan skeleton is esterified, and the hydrogen atom of the hydroxyl group is a galloyl group (3,4,5-trihydroxybenzoyl group). ) Compounds having a structure substituted with) are known. It is considered that condensed tannin can be immobilized by interacting with odor-causing molecules (odor molecules) in multiple ways by a plurality of hydroxyl groups bonded to the flavan skeleton.
縮合型タンニンとしては、複数の水酸基が結合したフラバン骨格が、炭素−炭素結合を介して複数繋がった構造を有する化合物であることが好ましい。フラバン骨格が複数繋がった構造を有する縮合型タンニンを用いれば、臭気分子を包接固定できるようになると考えられ、消臭効果を高めることができる。例えば天然物中には、上記に示すフラバン骨格の４位の炭素と８位の炭素が結合箇所となって、フラバン骨格が複数繋がった構造を有する縮合型タンニンが知られている。 The condensed tannin is preferably a compound having a structure in which a plurality of flavan skeletons to which a plurality of hydroxyl groups are bonded are connected via a carbon-carbon bond. If condensed tannin having a structure in which a plurality of flavan skeletons are connected is used, it is considered that odor molecules can be included and fixed, and the deodorizing effect can be enhanced. For example, in natural products, a condensed tannin having a structure in which the carbon at the 4th position and the carbon at the 8th position of the flavan skeleton shown above serve as a bonding site and a plurality of flavan skeletons are connected is known.
フラバン骨格が複数繋がった構造を有する縮合型タンニンとしては、例えば、下記式（２）で示す繰り返し単位を有するものを用いることが好ましい。なお、下記式（２）において、Ｒ1は水素原子または水酸基を表し、Ｒ2は水素原子またはガロイル基を表す。 As the condensed tannin having a structure in which a plurality of flavan skeletons are connected, for example, one having a repeating unit represented by the following formula (2) is preferably used. In the following formula (2), R 1 represents a hydrogen atom or a hydroxyl group, and R 2 represents a hydrogen atom or a galloyl group.
縮合型タンニンは、消臭効果を高める点から、重量平均分子量が２，０００以上であることが好ましく、３，０００以上がより好ましく、５，０００以上がさらに好ましい。このような重量平均分子量を持つ縮合型タンニンは、フラバン骨格が複数繋がった構造を有するものとなる。一方、縮合型タンニンの重量平均分子量の上限は特に限定されないが、溶解性を高めて取り扱い性を向上させる点から、当該重量平均分子量は５００，０００以下が好ましく、３００，０００以下がより好ましく、１５０，０００以下がさらに好ましい。重量平均分子量は、ゲルパーミエーションクロマトグラフィーにより測定したポリスチレン換算の値とする。 The condensed tannin preferably has a weight average molecular weight of 2,000 or more, more preferably 3,000 or more, and even more preferably 5,000 or more from the viewpoint of enhancing the deodorizing effect. The condensed tannin having such a weight average molecular weight has a structure in which a plurality of flavan skeletons are connected. On the other hand, the upper limit of the weight average molecular weight of the condensed tannin is not particularly limited, but the weight average molecular weight is preferably 500,000 or less, more preferably 300,000 or less, from the viewpoint of improving the solubility and improving the handleability. More preferably, it is 150,000 or less. The weight average molecular weight is a value in terms of polystyrene measured by gel permeation chromatography.
縮合型タンニンとしては、柿渋由来のものを用いることが好ましい。柿渋由来の縮合型タンニンであるカキタンニンは、複数の水酸基が結合したフラバン骨格が１２〜３０個程度繋がった構造を有し、特に高い消臭効果を示す。柿渋は、例えば、未成熟の渋柿の実を圧搾して得られた搾汁液を発酵させることにより得ることができ、これをそのまま用いてもよく、必要に応じて適宜濃縮、希釈、ろ過、抽出、乾燥等の処理を施してもよい。柿渋は市販品を用いてもよい。 As the condensed tannin, it is preferable to use a tannin-derived one. Kakitannin, which is a condensed tannin derived from persimmon astringent, has a structure in which about 12 to 30 flavan skeletons to which a plurality of hydroxyl groups are bonded are connected, and exhibits a particularly high deodorizing effect. The persimmon astringent can be obtained, for example, by fermenting a juice obtained by squeezing immature astringent fruit, which may be used as it is, and may be appropriately concentrated, diluted, filtered, extracted as necessary. A treatment such as drying may be applied. A commercially available product may be used for the persimmon.
セルロースアセテート繊維は、セルロースを酢酸エステル化することにより得られる半合成繊維であり、セルロースジアセテート繊維とセルローストリアセテート繊維の２種類が広く用いられている。本発明では、このうちセルロースジアセテート繊維を用いる。セルロースジアセテートは、セルロースの無水グルコースの繰り返し単位に含まれる３個の水酸基のうち、平均で２．１個〜２．７個の水酸基がアセチル化されていること、すなわち置換度が２．１〜２．７であることが好ましい。 The cellulose acetate fiber is a semi-synthetic fiber obtained by converting cellulose to an acetate ester, and two types of cellulose diacetate fiber and cellulose triacetate fiber are widely used. Of these, cellulose diacetate fiber is used in the present invention. Cellulose diacetate has an average of 2.1 to 2.7 hydroxyl groups among three hydroxyl groups contained in the anhydroglucose repeating unit of cellulose, that is, the degree of substitution is 2.1. It is preferable that it is -2.7.
本発明者らが、様々な種類の繊維に縮合型タンニンを担持させるようにして、その消臭効果を検討したところ、セルロースジアセテート繊維を用いた場合に特に優れた消臭効果を発揮することが明らかになった。例えば、合成繊維に縮合型タンニンを担持させた場合や、セルロースジアセテート繊維に近い構造を有するセルローストリアセテート繊維や単なるセルロース繊維（すなわち酢酸エステル化されていないセルロース繊維）に縮合型タンニンを担持させた場合と比較すると、セルロースジアセテート繊維に縮合型タンニンを担持させると、長時間にわたって消臭効果が持続する。セルロースジアセテート繊維を用いた場合に優れた消臭効果を示す理由は明らかではないが、縮合型タンニンがセルロースジアセテート繊維と接触することにより、それぞれの持つ水酸基の水素結合により縮合型タンニンがセルロースジアセテート繊維に固定化され、縮合型タンニンとセルロースジアセテート繊維とが協働して臭気分子を安定して包接固定できるようになると推測される。また、セルロースジアセテート繊維の有する水酸基やアセトキシ基により、臭気分子の捕集効果も発揮されるものと推察される。一方、単なるセルロース繊維に縮合型タンニンを担持させた場合は、セルロース繊維がアセトキシ基を有しないことにより、臭気分子の捕集能力が落ちたり、あるいは臭気分子の包接固定能力が低下するものと考えられる。 The present inventors examined the deodorizing effect by supporting condensed tannin on various types of fibers, and exhibited a particularly excellent deodorizing effect when using cellulose diacetate fiber. Became clear. For example, when condensed tannin is supported on a synthetic fiber, or condensed tannin is supported on a cellulose triacetate fiber having a structure close to that of cellulose diacetate fiber or a simple cellulose fiber (that is, a cellulose fiber not acetated). Compared to the case, when the condensed tannin is supported on the cellulose diacetate fiber, the deodorizing effect is maintained for a long time. The reason why the cellulose diacetate fiber has an excellent deodorizing effect is not clear, but when the condensed tannin comes into contact with the cellulose diacetate fiber, the condensed tannin is converted into cellulose by the hydrogen bond of each hydroxyl group. It is presumed that the odorous molecules can be stably encapsulated and fixed by cooperating with the condensed tannin and the cellulose diacetate fiber after being fixed to the diacetate fiber. Moreover, it is guessed that the collection effect of an odor molecule is exhibited by the hydroxyl group and acetoxy group which a cellulose diacetate fiber has. On the other hand, when condensed tannin is supported on a mere cellulose fiber, the cellulose fiber does not have an acetoxy group, so that the ability to collect odor molecules falls or the ability to include and fix odor molecules is reduced. Conceivable.
セルロースジアセテート繊維は繊維集合体として用いることが好ましい。すなわち、消臭材はセルロースジアセテート繊維を含む繊維集合体を含有することが好ましい。セルロースジアセテート繊維を複数の繊維を含む集合体として用いることにより、繊維による網状構造が形成され、臭気分子の捕捉能力を高めることができる。 The cellulose diacetate fiber is preferably used as a fiber assembly. That is, the deodorant material preferably contains a fiber assembly including cellulose diacetate fibers. By using cellulose diacetate fiber as an aggregate containing a plurality of fibers, a network structure is formed by the fibers, and the ability to capture odor molecules can be enhanced.
セルロースジアセテート繊維は、トウ開繊繊維であることが好ましい。トウ開繊繊維は長繊維であるため、それから繊維集合体を形成した場合、繊維の脱落が起こりにくく、耐久性に優れたものとなる。また、トウ開繊繊維とすることにより、繊維集合体を嵩高く形成して空隙率を高めることができ、臭気分子の捕集能力を高めることができる。 The cellulose diacetate fiber is preferably a tow spread fiber. Since the toe-opening fiber is a long fiber, when a fiber assembly is formed therefrom, the fiber is less likely to fall off and has excellent durability. Moreover, by using a tow-opening fiber, a fiber assembly can be formed bulky to increase the porosity, and the ability to collect odor molecules can be increased.
繊維集合体は、セルロースジアセテート繊維以外の繊維を含んでいてもよい。例えば、繊維集合体の成形性を高めるために熱融着性繊維を含ませたり、あるいは繊維集合体の親疎水性を調節したり、吸水性能を付与したりするために、任意の他の繊維を含ませてもよい。なお繊維集合体は、消臭効果を高める点から、セルロースジアセテート繊維の含有率が３０質量％以上であることが好ましく、５０質量％以上がより好ましく、７０質量％以上がさらに好ましく、９０質量％以上がさらにより好ましく、９５質量％以上が特に好ましい。繊維集合体は、セルロースジアセテート繊維のみから構成されるものであってもよい。繊維集合体中のセルロースジアセテート繊維の含有率は、繊維集合体を構成する全繊維１００質量％に対する割合を意味する。なお、繊維集合体中にセルロースジアセテート繊維が偏在している場合は、当該セルロースジアセテート繊維に縮合型タンニンが担持されるように形成されていれば、繊維集合体中のセルロースジアセテート繊維の含有率を３０質量％未満とすることもできる。 The fiber assembly may contain fibers other than cellulose diacetate fibers. For example, in order to improve the moldability of the fiber assembly, heat-fusible fibers are included, or the hydrophilicity / hydrophobicity of the fiber assembly is adjusted, or any other fiber is added to impart water absorption performance. It may be included. The fiber aggregate preferably has a cellulose diacetate fiber content of 30% by mass or more, more preferably 50% by mass or more, still more preferably 70% by mass or more, and 90% by mass from the viewpoint of enhancing the deodorizing effect. % Or more is even more preferable, and 95% by mass or more is particularly preferable. The fiber assembly may be composed only of cellulose diacetate fibers. The content rate of the cellulose diacetate fiber in a fiber assembly means the ratio with respect to 100 mass% of all the fibers which comprise a fiber assembly. In addition, when the cellulose diacetate fiber is unevenly distributed in the fiber assembly, the cellulose diacetate fiber in the fiber assembly may be formed if the cellulose diacetate fiber is formed so that the condensed tannin is supported on the fiber assembly. The content can also be less than 30% by mass.
縮合型タンニンをセルロースジアセテート繊維に担持させる方法としては、縮合型タンニンやそれを含む液体をセルロースジアセテート繊維に散布したり、縮合型タンニンを含む液体にセルロースジアセテート繊維を浸漬する方法が挙げられる。縮合型タンニンは、天然抽出液（例えば、搾汁液や溶媒抽出液）として、セルロースジアセテート繊維に加えるようにしてもよい。縮合型タンニンを含む液体を加えたセルロースジアセテート繊維は、必要に応じて乾燥処理を施してもよい。 Examples of a method for supporting condensed tannin on cellulose diacetate fiber include a method in which condensed tannin and a liquid containing the same are sprayed on cellulose diacetate fiber, or a method in which cellulose diacetate fiber is immersed in a liquid containing condensed tannin. It is done. Condensed tannin may be added to cellulose diacetate fiber as a natural extract (eg, juice or solvent extract). The cellulose diacetate fiber to which a liquid containing condensed tannin is added may be subjected to a drying treatment as necessary.
縮合型タンニンは、消臭効果を発揮させたいときに、セルロースジアセテート繊維に担持されるようにしてもよい。すなわち消臭材は、使用の際に縮合型タンニンがセルロースジアセテート繊維に担持されるように形成されていてもよい。本発明の消臭材は、実施例でも説明するように、尿由来の臭気を除去することができるが、消臭材が尿に触れることにより、縮合型タンニンがセルロースジアセテート繊維と接触するようにしてもよい。この場合、例えば、縮合型タンニンを、透液性シートを介してセルロースジアセテート繊維とは直接接触しないように配することにより、消臭材を構成することができる。そして、消臭材に尿が加えられることにより、縮合型タンニンが尿とともに透液性シートを透過してセルロースジアセテート繊維の表面に移行し、その結果、縮合型タンニンがセルロースジアセテート繊維に担持され、消臭効果が発現するようになる。 The condensed tannin may be supported on cellulose diacetate fiber when it is desired to exert a deodorizing effect. That is, the deodorizing material may be formed so that condensed tannin is supported on cellulose diacetate fiber during use. The odor eliminating material of the present invention can remove odor derived from urine, as will be described in Examples, but the condensed tannin comes into contact with the cellulose diacetate fiber when the odor eliminating material touches urine. It may be. In this case, for example, the deodorizing material can be configured by arranging the condensed tannin so as not to directly contact the cellulose diacetate fiber via the liquid-permeable sheet. By adding urine to the deodorant, condensed tannin passes through the liquid-permeable sheet together with urine and migrates to the surface of the cellulose diacetate fiber. As a result, the condensed tannin is carried on the cellulose diacetate fiber. As a result, a deodorizing effect is exhibited.
縮合型タンニンとセルロースジアセテート繊維の配合量は、所望する消臭効果に応じて適宜調整すればよい。なお天然物中には、縮合型タンニンが単一の化合物として存在しているのではなく、様々な形態で存在しているため、縮合型タンニンそのものの配合量を求めることは実際には難しい。従って、縮合型タンニンの配合量は、天然抽出物の乾燥質量（天然抽出液の場合は蒸発残分質量）として定めることが簡便である。このように定める場合、縮合型タンニンの配合量は、セルロースジアセテート繊維１００質量部に対して、０．３質量部以上が好ましく、０．５質量部以上がより好ましく、１質量部以上がさらに好ましく、また５０質量部以下が好ましく、３０質量部以下がより好ましく、２０質量部以下がさらに好ましい。 What is necessary is just to adjust suitably the compounding quantity of condensed tannin and a cellulose diacetate fiber according to the desired deodorizing effect. In natural products, condensed tannin does not exist as a single compound but exists in various forms, so it is actually difficult to determine the amount of condensed tannin itself. Therefore, it is easy to determine the blending amount of the condensed tannin as the dry mass of the natural extract (in the case of a natural extract, the evaporation residue mass). In such a case, the blending amount of the condensed tannin is preferably 0.3 parts by mass or more, more preferably 0.5 parts by mass or more, and further preferably 1 part by mass or more with respect to 100 parts by mass of the cellulose diacetate fiber. It is preferably 50 parts by mass or less, more preferably 30 parts by mass or less, and further preferably 20 parts by mass or less.
消臭材には、他の消臭物質が含まれていてもよい。また、芳香剤、抗菌剤、防腐剤、乾燥剤等の任意の副資材が含まれていてもよい。 The deodorizing material may contain other deodorizing substances. Moreover, arbitrary submaterials, such as a fragrance | flavor, an antibacterial agent, antiseptic | preservative, and a desiccant, may be contained.
本発明の消臭材は、生物由来の臭気の除去に特に効果を発揮する。例えば、アンモニア系、硫化水素やメチルメルカプタン等の硫黄系、低級脂肪酸等の有機酸系、アルデヒド系等の臭気成分の除去が可能であり、臭気成分が複数ある場合でも消臭効果を発揮することができる。 The deodorant material of the present invention is particularly effective for removing biological odors. For example, it is possible to remove odorous components such as ammonia, hydrogen sulfide and sulfur such as methyl mercaptan, organic acids such as lower fatty acids, aldehyde, etc. Can do.
本発明の消臭材は、居室やトイレ等の居住空間に置いて用いたり、空気清浄機や空調機のフィルターに設置したり、生ゴミや食品残渣等の傍に置いたり、それらの廃棄容器（ゴミ袋やゴミ箱）の内部に設置して用いることができる。また、本発明の消臭剤を、繊維製品（例えば、衣料、使い捨ておむつ、生理用品、使い捨て下着、家具、カーペット、壁材等）の一部として用いることもできる。特に、実施例に示した結果からも明らかなように、本発明の消臭材は尿等の排泄物由来の臭気を効果的に除去することができるため、使い捨ておむつや生理用品といった吸収性物品に好適に適用することができる。使い捨ておむつは、パンツタイプ、テープタイプ、パッドタイプ（尿パッド、軽失禁パッド）等、その形状は特に限定されない。 The deodorant material of the present invention is used in a living space such as a living room or a toilet, installed in a filter of an air purifier or an air conditioner, placed beside garbage or food residue, etc. It can be installed inside a (trash bag or trash box). Moreover, the deodorizer of this invention can also be used as a part of textiles (for example, clothing, disposable diapers, sanitary goods, disposable underwear, furniture, carpets, wall materials, etc.). In particular, as is clear from the results shown in the examples, the deodorant material of the present invention can effectively remove odors derived from excretions such as urine, and therefore, absorbent articles such as disposable diapers and sanitary products. It can be suitably applied to. The shape of the disposable diaper is not particularly limited, such as a pants type, a tape type, and a pad type (urine pad, light incontinence pad).
吸収性物品は、その基本構成として、例えばトップシートとバックシートの間に吸収体が配されて構成される。トップシートは、吸収性物品の着用の際に着用者側に位置するシートであり、液透過性であることが好ましい。トップシートとしては、親水性不織布や孔が形成されたプラスチックフィルム等を用いることができる。バックシートは、吸収性物品の着用の際に着用者とは反対側、すなわち外側に位置するシートであり、液不透過性であることが好ましい。バックシートとしては、疎水性不織布、プラスチックフィルム、不織布とプラスチックフィルムとの積層体等を用いることができる。なお、特別な使用態様の吸収性物品においては、バックシートは液透過性であってもよく、この場合、バックシートはトップシートで使用可能な材料から構成することができる。吸収体は、尿等の排泄物を吸収できる吸収性材料を含むものであれば特に限定されない。吸収体としては、例えば、吸収性材料を所定形状に成形した成形体を用いたり、あるいは吸収性材料を紙シート（例えば、ティッシュペーパーや薄葉紙）や液透過性不織布等のシート部材で覆ったり挟んだものを用いることができる。吸収体に含まれる吸収性材料としては、例えば、セルロース繊維（例えば、粉砕したパルプ繊維）等の親水性繊維や、ポリアクリル酸系、ポリアスパラギン酸系、セルロース系、デンプン・アクリロニトリル系等の吸水性樹脂等が挙げられる。 The absorbent article has a basic configuration in which, for example, an absorbent body is disposed between a top sheet and a back sheet. The top sheet is a sheet located on the wearer side when the absorbent article is worn, and is preferably liquid permeable. As the top sheet, a hydrophilic non-woven fabric, a plastic film in which holes are formed, or the like can be used. The back sheet is a sheet located on the side opposite to the wearer when the absorbent article is worn, that is, on the outside, and is preferably liquid-impermeable. As the back sheet, a hydrophobic nonwoven fabric, a plastic film, a laminate of a nonwoven fabric and a plastic film, or the like can be used. In the absorbent article of a special use mode, the back sheet may be liquid permeable. In this case, the back sheet can be made of a material that can be used for the top sheet. The absorber is not particularly limited as long as it includes an absorbent material that can absorb excrement such as urine. As the absorbent body, for example, a molded body obtained by shaping the absorbent material into a predetermined shape is used, or the absorbent material is covered or sandwiched with a sheet member such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable nonwoven fabric. Can be used. Examples of the absorbent material contained in the absorbent body include hydrophilic fibers such as cellulose fibers (for example, pulverized pulp fibers), and water absorption such as polyacrylic acid-based, polyaspartic acid-based, cellulose-based, starch / acrylonitrile-based materials. Resin etc. are mentioned.
本発明の消臭材は、吸収性物品の任意の構成部材に適用することができ、尿等の排泄物と直接接触する箇所のみならず、直接接触しない箇所に設置しても臭気を除去することができる。消臭材は、例えば、吸収体の少なくとも一部の構成材料として用いたり、トップシートと吸収体の間に配して用いたり、バックシートと吸収体の間に配して用いることができる。また、トップシートの肌面側（着用者側）に設置したり、バックシートの外面側に設置して用いることも可能である。本発明の消臭材を備えた吸収性物品は、排泄物由来の臭気を効果的に除去でき、吸収性物品を着用した際の不快感を低減することができる。また、吸収性物品を使用後に廃棄した際にも、臭気の発生を抑制できる。 The deodorant material of the present invention can be applied to any constituent member of an absorbent article, and removes odor not only when it comes into direct contact with excrement such as urine but also when placed in a place where it does not come into direct contact. be able to. The deodorizing material can be used, for example, as a constituent material of at least a part of the absorbent body, disposed between the top sheet and the absorbent body, or disposed between the back sheet and the absorbent body. Moreover, it is also possible to install it on the skin surface side (wearer side) of the top sheet or to install it on the outer surface side of the back sheet. The absorbent article provided with the deodorant material of the present invention can effectively remove excrement-derived odors, and can reduce discomfort when the absorbent article is worn. Moreover, generation | occurrence | production of an odor can be suppressed also when discarding an absorbent article after use.
以下に、実施例を示すことにより本発明を更に詳細に説明するが、本発明の範囲はこれらに限定されるものではない。 Hereinafter, the present invention will be described in more detail with reference to examples, but the scope of the present invention is not limited thereto.
（１）消臭試験１（臭気源と接触状態における消臭試験）
（１−１）試験方法
開繊パルプ繊維３ｇと高吸水性樹脂粉末２ｇとを混合して１０ｃｍ×１０ｃｍの大きさに成形し、その上にティッシュペーパーを介してセルロースジアセテートのトウ開繊繊維の集合体０．５５ｇを載せて、複合体を形成した。この複合体を、下側に配置したフィルムと上側に配置したエアスルー不織布で挟んで、フィルムとエアスルー不織布の周縁をホットメルト接着剤で接着することにより、吸収体を作製した。吸収体の上（エアスルー不織布側）から、カキタンニンとして、精製水で２．５倍に希釈したリリース科学社製のＰａｎｃｉｌ（登録商標）ＦＧ−２２（カキタンニン溶液）を０．６ｇ散布して、室温で１時間乾燥させることにより、カキタンニンを含む吸収体（消臭材含有吸収体）を作製した。このように作製した吸収体の上（エアスルー不織布側）から混合尿（複数人の尿の混合物）４５ｍＬを加え、２８ｃｍ×４０ｃｍのジッパーバッグに入れ、密封した。密封後、１０分後、１時間後、３時間後、６時間後にジッパーバッグ内の臭いをかいで、臭気確認試験を行った。
(1) Deodorization test 1 (deodorization test in contact with odor source)
(1-1) Test method 3 g of the spread pulp fiber and 2 g of the superabsorbent resin powder are mixed to form a size of 10 cm × 10 cm, and then the tow spread fiber of cellulose diacetate is placed on the tissue paper. A composite was formed by placing 0.55 g of the assembly. The composite was sandwiched between a film disposed on the lower side and an air-through nonwoven fabric disposed on the upper side, and the periphery of the film and the air-through nonwoven fabric was bonded with a hot melt adhesive to prepare an absorbent body. From the top of the absorbent (air-through nonwoven fabric side), 0.6 g of Pancil (registered trademark) FG-22 (cachytannin solution) manufactured by Release Science Co., Ltd. diluted 2.5 times with purified water was sprayed as cachytannin. Then, an absorber (deodorant-containing absorber) containing cachytannin was produced by drying at room temperature for 1 hour. 45 mL of mixed urine (mixture of urine from a plurality of people) was added from above the absorbent body thus prepared (air-through nonwoven fabric side), and placed in a 28 cm × 40 cm zipper bag and sealed. After sealing, 10 minutes later, 1 hour later, 3 hours later, and 6 hours later, an odor confirmation test was conducted by smelling the zipper bag.
また、セルロースジアセテート繊維の集合体の代わりに、セルローストリアセテート繊維の集合体、パルプ繊維の集合体、コットン繊維の集合体、レーヨンとＰＥＴの複合繊維の集合体、ポリプロピレン（ＰＰ）とポリエチレン（ＰＥ）の複合繊維の集合体を用いたカキタンニンを含む吸収体を作製し、さらに、カキタンニン溶液０．６ｇを散布する代わりに精製水０．６ｇを散布したカキタンニンを含まない吸収体も作製した。これらの吸収体についても、上記と同様に臭気確認試験を行った。 Also, instead of cellulose diacetate fiber aggregate, cellulose triacetate fiber aggregate, pulp fiber aggregate, cotton fiber aggregate, rayon and PET composite fiber aggregate, polypropylene (PP) and polyethylene (PE ) Using an aggregate of composite fibers)), and an absorber containing no kakitannin sprayed with 0.6 g of purified water instead of spraying 0.6 g of a kakitannin solution. did. These absorbers were also subjected to an odor confirmation test in the same manner as described above.
（１−２）判定方法
５人の評価者それぞれが、下記の判定基準に基づき臭気強度を判定し、その平均値を判定結果とした。
０：無臭
１：やっと感知できるにおい
２：何のにおいかがわかる弱いにおい
３：楽に感知できるにおい
４：強いにおい
５：強烈なにおい
(1-2) Determination method Each of the five evaluators determined the odor intensity based on the following determination criteria, and determined the average value as the determination result.
0: Odorless 1: Scent that can be finally detected 2: Weak scent that understands what smells 3: Smell that can be easily detected 4: Strong odor 5: Strong odor
（１−３）結果
表１に消臭試験１の結果を示した。表１に示すように、カキタンニンとセルロースジアセテート繊維を含む消臭材を備えた吸収体では、６時間ほぼ無臭状態を維持した（Ｎｏ．１）。一方、セルロースジアセテート繊維以外の繊維を用いた場合は、カキタンニンを含んでいても、６時間後には消臭効果が大きく低下した（Ｎｏ．２〜６）。さらに、カキタンニンを含まない吸収体では、セルロースジアセテート繊維を含む吸収体では３時間までは若干の消臭効果が見られたものの、６時間後には消臭効果が大きく低下した（Ｎｏ．７）。それ以外の繊維を含む吸収体ではさらに消臭効果が低下する結果となった（Ｎｏ．８〜１２）。
(1-3) Results Table 1 shows the results of the deodorization test 1. As shown in Table 1, the absorbent body provided with the deodorant material containing kakitannin and cellulose diacetate fiber maintained almost no odor for 6 hours (No. 1). On the other hand, when fibers other than cellulose diacetate fibers were used, the deodorizing effect was greatly reduced after 6 hours even if cachytannin was included (Nos. 2 to 6). Further, in the absorbent containing no cachytannin, the absorbent containing cellulose diacetate fiber showed a slight deodorizing effect up to 3 hours, but the deodorizing effect was greatly reduced after 6 hours (No. 7). ). In the absorber containing other fibers, the deodorizing effect was further reduced (No. 8 to 12).
（２）消臭試験２（臭気源と非接触状態における消臭試験）
（２−１）試験方法
セルロースジアセテート繊維のトウ開繊繊維の集合体０．５ｇに、カキタンニンとして、リリース科学社製のＰａｎｃｉｌ（登録商標）ＦＧ−２２を２．６ｇ散布して、消臭材を作製した。この消臭材を、２５０ｍＬ容量のペットボトルに入れ、このペットボトルを開封状態で１７ｃｍ×２４ｃｍの大きさのジッパーバッグに入れ、密封した（バッグ１）。一方、混合尿１００ｍＬを別の２５０ｍＬ容量のペットボトルに入れ、このペットボトルを開封状態で１７ｃｍ×２４ｃｍの大きさのジッパーバッグに入れ、密封した（バッグ２）。バッグ１とバッグ２を２８ｃｍ×４０ｃｍの大きさのジッパーバッグに入れ、密封した（バッグ３）。バッグ３とバッグ１の密封状態を保ったまま、尿が入ったバッグ２のみを開封し、４０℃の恒温槽内で３時間保管した。次いで、バッグ３の密封状態を保ったまま、尿が入ったバッグ２の封を閉じ、消臭材が入ったバッグ１を開封し、４０℃の恒温槽内で１時間保管した後、恒温槽からバッグ３を取り出してバッグ３内の臭いをかいで、臭気確認試験を行った。
(2) Deodorization test 2 (deodorization test in a non-contact state with an odor source)
(2-1) Test method Disperse 2.6 g of Pancil (registered trademark) FG-22 manufactured by Release Science Co., Ltd. as oyster tannin on 0.5 g of the aggregate of tow-opened fibers of cellulose diacetate fiber. An odor material was produced. This deodorizing material was put into a 250 mL capacity PET bottle, and this PET bottle was put in a zipper bag having a size of 17 cm × 24 cm in an opened state and sealed (bag 1). On the other hand, 100 mL of mixed urine was put into another 250 mL capacity PET bottle, and this PET bottle was put in a zipper bag having a size of 17 cm × 24 cm in an opened state and sealed (bag 2). Bag 1 and bag 2 were put into a 28 cm × 40 cm zipper bag and sealed (bag 3). While keeping the sealed state of the bag 3 and the bag 1, only the bag 2 containing urine was opened and stored in a constant temperature bath at 40 ° C. for 3 hours. Next, with the bag 3 kept sealed, the bag 2 containing urine was closed, the bag 1 containing the deodorant was opened, and stored in a constant temperature bath at 40 ° C. for 1 hour, and then the constant temperature bath The bag 3 was taken out of the bag and smelled in the bag 3 to conduct an odor confirmation test.
また、セルロースジアセテート繊維の集合体の代わりに、セルローストリアセテート繊維の集合体、パルプ繊維の集合体、ポリプロピレン（ＰＰ）とポリエチレン（ＰＥ）の複合繊維の集合体を用いたカキタンニンを含む消臭材も作製し、上記と同様に臭気確認試験を行った。なおブランクとして、バッグ３の中に、消臭材の入ったバッグ１を入れずに、尿の入ったバッグ２のみを入れて、上記と同様に臭気確認試験を行った。 Also, instead of cellulose diacetate fiber aggregate, deodorant containing kakitannin using cellulose triacetate fiber aggregate, pulp fiber aggregate, polypropylene (PP) and polyethylene (PE) composite fiber aggregate A material was also prepared, and an odor confirmation test was performed in the same manner as described above. As a blank, an odor confirmation test was performed in the same manner as described above except that only the bag 2 containing urine was put in the bag 3 without the bag 1 containing the deodorant.
（２−２）判定方法
５人の評価者それぞれが、下記の判定基準に基づき臭気強度を判定し、その平均値を判定結果とした。
０：無臭
１：やっと感知できるにおい
２：何のにおいかがわかる弱いにおい
３：楽に感知できるにおい
４：強いにおい
５：強烈なにおい
(2-2) Determination method Each of the five evaluators determined the odor intensity based on the following determination criteria, and determined the average value as the determination result.
0: Odorless 1: Scent that can be finally detected 2: Weak scent that understands what smells 3: Smell that can be easily detected 4: Strong odor 5: Strong odor
（２−３）結果
表２に消臭試験２の結果を示した。表２に示すように、カキタンニンとセルロースジアセテート繊維を含む消臭材を用いた場合は、消臭材が尿と非接触の状態でも、気体状態の臭気成分を除去できることが明らかになった（Ｎｏ．１３）。一方、それ以外の繊維を含む消臭材では、消臭材を設置しなかったブランクの系と臭気判定結果がほとんど変わらず、消臭効果を示さなかった（Ｎｏ．１４〜１７）。
(2-3) Results Table 2 shows the results of the deodorization test 2. As shown in Table 2, it was found that when a deodorizing material containing kakitannin and cellulose diacetate fiber was used, the odor component in a gaseous state could be removed even when the deodorizing material was not in contact with urine. (No. 13). On the other hand, in the deodorizing material containing other fibers, the blank system in which the deodorizing material was not installed and the odor determination result were almost the same, and the deodorizing effect was not shown (No. 14 to 17).
（３）消臭試験３（臭気源と接触状態における消臭試験）
（３−１）試験方法
開繊パルプ繊維０．３ｇと高吸水性樹脂粉末０．２ｇとを混合した吸収体を作製した。別途、セルロースジアセテートのトウ開繊繊維の集合体０．０５ｇに、カキタンニンとして、精製水で２．５倍に希釈したリリース科学社製のＰａｎｃｉｌ（登録商標）ＦＧ−２２（カキタンニン溶液）を０．０６ｇ散布して、室温で乾燥させることにより、消臭材を作製した。このように作製した吸収体と消臭材を同一のバイアル瓶に入れ、さらにそこに混合尿４．７ｍＬを加えて密封し、サンプルＡを調製した。さらに、サンプルＡに対して、セルロースジアセテート繊維の集合体を使用せず、カキタンニンを直接吸収体に散布したサンプルＢ、カキタンニンを散布しないセルロースジアセテート繊維の集合体を消臭材として用いたサンプルＣ、セルロースジアセテート繊維の集合体もカキタンニンも加えないサンプルＤをそれぞれ調製した。各サンプルについて、３時間および６時間静置した後、バイアル瓶内のガスを採集し、ガスクロマトグラフ質量分析計（ＧＣ−ＭＳ）にてメチルメルカプタンの存在の有無を調べた。
(3) Deodorization test 3 (deodorization test in contact with odor source)
(3-1) Test method An absorbent body was prepared by mixing 0.3 g of the spread fiber pulp and 0.2 g of the superabsorbent resin powder. Separately, Pancil (registered trademark) FG-22 (Cakitannin solution) manufactured by Release Science Co., Ltd. diluted to 2.5 g with purified water as kakitannin into 0.05 g of a tow spread fiber of cellulose diacetate Was sprayed and dried at room temperature to prepare a deodorant material. The absorbent body and the deodorizing material thus prepared were put in the same vial, and 4.7 mL of mixed urine was further added thereto and sealed to prepare Sample A. Furthermore, for sample A, an aggregate of cellulose diacetate fibers is not used, but sample B in which oyster tannin is directly sprayed on the absorbent is used as a deodorant. Sample C and Sample D to which neither an aggregate of cellulose diacetate fibers nor a kakitannin were added were prepared. About each sample, after leaving still for 3 hours and 6 hours, the gas in a vial was collected, and the presence or absence of methyl mercaptan was investigated with the gas chromatograph mass spectrometer (GC-MS).
（３−２）結果
表３に消臭試験３の結果を示した。表３に示すように、サンプルＡでは３時間後および６時間後のいずれも、メチルメルカプタンの検出ピークは確認されなかった（ベースラインと区別が付かなかった）。一方、サンプルＢ〜Ｄでは、３時間後と６時間後のいずれもメチルメルカプタンの検出ピークが確認された。カキタンニンとセルロースジアセテート繊維を併用することで、メチルメルカプタンの発生を完全に抑えられたことが分かる。
(3-2) Results Table 3 shows the results of the deodorization test 3. As shown in Table 3, the detection peak of methyl mercaptan was not confirmed in Sample A after 3 hours and after 6 hours (not distinguishable from the baseline). On the other hand, in samples B to D, detection peaks of methyl mercaptan were confirmed both after 3 hours and after 6 hours. It turns out that generation | occurrence | production of methyl mercaptan was completely suppressed by using a cachytannin and a cellulose diacetate fiber together.
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