JP6078191B1 - Cotton for bedding - Google Patents

Cotton for bedding Download PDF

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JP6078191B1
JP6078191B1 JP2016085873A JP2016085873A JP6078191B1 JP 6078191 B1 JP6078191 B1 JP 6078191B1 JP 2016085873 A JP2016085873 A JP 2016085873A JP 2016085873 A JP2016085873 A JP 2016085873A JP 6078191 B1 JP6078191 B1 JP 6078191B1
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short fibers
ppm
fiber
short
bedding
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JP2017193805A (en
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清輝 土久岡
清輝 土久岡
佑輔 赤木
佑輔 赤木
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Japan Exlan Co Ltd
Toyobo Co Ltd
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Japan Exlan Co Ltd
Toyobo Co Ltd
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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

【課題】幅広い種類の臭気原因物質を効果的かつ持続的に分解除去する能力を有する寝具用中綿を提供する。【解決手段】鉄、アルミニウム、カリウム、及びチタンを含む金属組成物からなり、かつ金属組成物中の金属含有割合が鉄１００ｐｐｍに対してアルミニウム１００〜５００ｐｐｍ、カリウム０．５〜５０ｐｐｍ、チタン０．１〜５０ｐｐｍである空気触媒を繊維表面に付着した短繊維、及び架橋アクリレート系吸放湿性短繊維からなる物質分解除去短繊維と、物質分解除去短繊維以外の短繊維とからなる中綿であって、物質分解除去短繊維中の金属組成物の含有量が０．０１質量％以上であり、架橋アクリレート系吸放湿性短繊維の含有量が５０質量％以上である。【選択図】なし[PROBLEMS] To provide a cotton pad for bedding having the ability to effectively and continuously decompose and remove a wide variety of odor-causing substances. The metal composition includes iron, aluminum, potassium, and titanium, and the metal content in the metal composition is 100 to 500 ppm of aluminum, 0.5 to 50 ppm of potassium, and 0.5% of titanium with respect to 100 ppm of iron. It is a batting consisting of a short fiber having an air catalyst of 1 to 50 ppm attached to the fiber surface, a material-decomposing and removing short fiber consisting of a crosslinked acrylate-based moisture-absorbing and releasing short fiber, and a short fiber other than the material-decomposing and removing short fiber. The content of the metal composition in the material-decomposed and removed short fiber is 0.01% by mass or more, and the content of the crosslinked acrylate-based moisture-absorbing / releasing short fiber is 50% by mass or more. [Selection figure] None

Description

本発明は、空気触媒を付着した短繊維と架橋アクリレート系吸放湿性短繊維を併用して臭気原因物質を分解除去する能力を飛躍的に高めた寝具用中綿に関する。   The present invention relates to a cotton pad for bedding that has a dramatic improvement in the ability to decompose and remove odor-causing substances by using a short fiber with an air catalyst attached and a cross-linked acrylate-based moisture-absorbing / releasing short fiber.

近年の快適性、健康に対する意識の高まりから、汚染物質を分解または除去する機能を有する素材の開発が強く求められており、これらの機能に基づいて消臭性や抗菌性を有する物質分解除去剤が数多く提案されている。   With the recent increase in comfort and health awareness, there is a strong demand for the development of materials that have the function of decomposing or removing pollutants. Based on these functions, degrading and antibacterial substance decomposition and removal agents Many have been proposed.

特許文献１では、架橋構造およびカルボキシル基を有する重合体から形成され、かつ光触媒活性を有する金属酸化物微粒子を含有する光触媒含有繊維が提案されている。かかる金属酸化物微粒子は、悪臭物質、アレルゲン、菌、ウイルス等がカルボキシル基に吸着されるとともに光触媒で分解される機能を有するが、その機能を発揮するためには十分な光照射が必要であり、しかもカルボキシル基による吸着だけでは分解除去が不十分な物質が存在する問題があった。   Patent Document 1 proposes a photocatalyst-containing fiber that is formed from a polymer having a crosslinked structure and a carboxyl group and contains metal oxide fine particles having photocatalytic activity. Such metal oxide fine particles have a function of adsorbing malodorous substances, allergens, fungi, viruses, etc. to carboxyl groups and decomposing with photocatalysts, but sufficient light irradiation is necessary to exert their functions. In addition, there is a problem that a substance that cannot be decomposed and removed only by adsorption with a carboxyl group exists.

特許文献２では、光照射なしで水酸化ラジカル、オゾン又は過酸化物を発生する空気触媒が固着された繊維構造体が提案されている。空気触媒は物質の分解除去の効果に優れるが、その機能を効果的に発揮するためには周囲に十分な量の水蒸気が持続的に存在することが必要であり、また、空気触媒だけでは分解除去が不十分な物質が存在する問題があった。   Patent Document 2 proposes a fiber structure in which an air catalyst that generates hydroxyl radicals, ozone, or peroxide without light irradiation is fixed. Air catalysts are excellent in decomposing and removing substances, but in order to perform their functions effectively, a sufficient amount of water vapor needs to be continuously present in the surroundings. There was a problem that there was a substance that was insufficiently removed.

特許文献３では、鉄とアルミニウムとカリウムを含む金属組成物、および水を含有する水性組成物からなる消臭剤、抗菌剤、または防カビ剤が提案されている。この水性組成物は、対象物に固着すると水分が蒸発するため、その機能の持続的な発揮には限界があり、また、空気触媒だけでは分解除去が不十分な物質が存在する問題があった。   Patent Document 3 proposes a deodorant, an antibacterial agent, or an antifungal agent comprising a metal composition containing iron, aluminum and potassium, and an aqueous composition containing water. Since this water-based composition evaporates moisture when it adheres to an object, there is a limit to the continuous performance of the function, and there is a problem that there is a substance that is insufficiently decomposed and removed only by an air catalyst. .

上述の特許文献１〜３の問題を解消するために、出願人は、幅広い種類の物質を効果的かつ持続的に分解除去する能力を有する物質分解除去剤を提案した（特許文献４参照）。しかしながら、特許文献４では、これらの物質分解除去剤の機能を寝具用中綿において具体的に実現する方法までは提案していなかった。   In order to solve the above-mentioned problems of Patent Documents 1 to 3, the applicant has proposed a substance decomposition / removal agent having the ability to effectively and continuously decompose and remove a wide variety of substances (see Patent Document 4). However, Patent Document 4 did not propose a method for specifically realizing the function of these substance decomposition and removal agents in bedding batting.

特開２０１４−７４２４３号公報JP 2014-74243 A 特開２００５−６０９０４号公報Japanese Patent Laying-Open No. 2005-60904 特開２００７−２１５９８８号公報Japanese Patent Laid-Open No. 2007-215988 ＰＣＴ／ＪＰ２０１５／０７９５８１PCT / JP2015 / 079581

本発明は、上述の特許文献４の技術をさらに進めるために創案されたものであり、その目的は、幅広い種類の臭気原因物質を効果的かつ持続的に分解除去する能力を有する寝具用中綿を提供することにある。   The present invention was devised in order to further advance the technique of Patent Document 4 described above, and its purpose is to provide a padding for bedding having the ability to effectively and continuously decompose and remove a wide variety of odor-causing substances. It is to provide.

本発明者は、上記目的を達成するために鋭意検討した結果、寝具用中綿において空気触媒を付着した短繊維と架橋アクリレート系吸放湿性短繊維を併用することにより、架橋アクリレート系吸放湿性短繊維によって空気触媒の周囲の水蒸気濃度が持続的に高まり、これにより空気触媒から多量のＯＨラジカルが発生されて空気触媒の物質分解除去能力を最大限発揮させることができるとともに、これに架橋アクリレート系吸放湿性短繊維の物質吸着能力が加わって、幅広い種類の臭気原因物質を分解除去する能力が相乗的に高まることを見い出し、本発明の完成に至った。   As a result of diligent study to achieve the above object, the inventor of the present invention uses a short fiber having an air catalyst attached to a filling for bedding and a cross-linked acrylate-based moisture-absorbing / short-release fiber in combination. The fiber continuously increases the water vapor concentration around the air catalyst, which generates a large amount of OH radicals from the air catalyst and maximizes the ability of the air catalyst to decompose and remove substances. It has been found that the ability to absorb and release hygroscopic short fibers has been added, and the ability to decompose and remove a wide variety of odor-causing substances has been synergistically increased, and the present invention has been completed.

即ち、本発明は、以下の（１）〜（４）の構成を有するものである。
（１）鉄、アルミニウム、カリウム、及びチタンを含む金属組成物からなり、かつ金属組成物中の金属含有割合が鉄１００ｐｐｍに対してアルミニウム１００〜５００ｐｐｍ、カリウム０．５〜５０ｐｐｍ、チタン０．１〜５０ｐｐｍである空気触媒を繊維表面に付着した短繊維、及び架橋アクリレート系吸放湿性短繊維からなる物質分解除去短繊維と、物質分解除去短繊維以外の短繊維とからなる中綿であって、物質分解除去短繊維中の金属組成物の含有量が０．０１質量％以上であり、架橋アクリレート系吸放湿性短繊維の含有量が５０質量％以上であることを特徴とする寝具用中綿。
（２）物質分解除去短繊維以外の短繊維がポリエステル短繊維、アクリル短繊維、及び再生セルロース短繊維からなる群から選ばれる少なくとも１種の短繊維であることを特徴とする（１）に記載の寝具用中綿。
（３）空気触媒を繊維表面に付着した短繊維がポリエステル短繊維及び／又はアクリル短繊維であることを特徴とする（１）又は（２）に記載の寝具用中綿。
（４）掛け布団又は敷き布団又は枕の中綿として使用されることを特徴とする（１）〜（３）のいずれかに記載の寝具用中綿。 That is, the present invention has the following configurations (1) to (4).
(1) It consists of a metal composition containing iron, aluminum, potassium, and titanium, and the metal content in the metal composition is 100 to 500 ppm of aluminum, 0.5 to 50 ppm of potassium, and 0.1 of titanium with respect to 100 ppm of iron. It is a batting composed of short fibers with an air catalyst of -50 ppm attached to the fiber surface, and material-dissolved and removed short fibers composed of crosslinked acrylate-based moisture-absorbing and releasing short fibers, and short fibers other than the material-decomposed and removed short fibers, A filling for bedding characterized in that the content of the metal composition in the material-dissolved short fibers is 0.01% by mass or more and the content of the crosslinked acrylate-based moisture-absorbing / releasing short fibers is 50% by mass or more.
(2) The short fiber other than the material-decomposed and removed short fiber is at least one kind of short fiber selected from the group consisting of polyester short fibers, acrylic short fibers, and regenerated cellulose short fibers. Cotton for bedding.
(3) The cotton pad for bedding according to (1) or (2), wherein the short fiber having an air catalyst attached to the fiber surface is a polyester short fiber and / or an acrylic short fiber.
(4) The padding for bedding according to any one of (1) to (3), wherein the padding is used as a comforter, a mattress or a pillow.

本発明の寝具用中綿は、架橋アクリレート系吸放湿性短繊維の存在により空気触媒の周囲の水蒸気濃度を持続的に高めているので、空気触媒による有機物質及び無機物質（金属を除く）の分解・除去能力を十分に発揮することができ、また架橋アクリレート系吸放湿性短繊維による物質の吸着効果も存在するため、幅広い種類の有機物質及び無機物質（金属を除く）に対する分解・除去能力が極めて優れている。従って、本発明の寝具用中綿を人間の身体が直接接触する掛け布団又は敷き布団又は枕などに使用した場合、人間由来の臭気原因物質を効果的に分解除去することができる。   Since the batting for the bedding of the present invention continuously increases the water vapor concentration around the air catalyst due to the presence of the crosslinked acrylate-based moisture-absorbing / releasing moisture fibers, the organic catalyst and the inorganic substance (excluding metals) are decomposed by the air catalyst.・ Being able to fully demonstrate its removal ability, and also has the effect of adsorbing substances with cross-linked acrylate moisture-absorbing and releasing short fibers, it has the ability to decompose and remove a wide variety of organic and inorganic substances (excluding metals). Very good. Therefore, when the padding for bedding of the present invention is used for a comforter, a mattress or a pillow that directly contacts the human body, the odor-causing substance derived from humans can be effectively decomposed and removed.

本発明の寝具用中綿は、特定の金属組成物からなる空気触媒を繊維表面に付着した短繊維と、架橋アクリレート系吸放湿性短繊維とからなる物質分解除去短繊維を含むものであり、空気触媒と架橋アクリレート系吸放湿性短繊維の相乗効果により物質の分解・除去能力を飛躍的に高め、消臭性、抗菌性、抗ウイルス性、防カビ性などを持続的に高いレベルで発揮するものである。   The batting for bedding of the present invention includes short fibers in which an air catalyst made of a specific metal composition is attached to the fiber surface, and substance-dissolved short fibers made of crosslinked acrylate-based moisture-absorbing and releasing short fibers, and air The synergistic effect of catalyst and cross-linked acrylate moisture-absorbing and releasing short fibers dramatically enhances the ability to decompose and remove substances, and exhibits deodorant, antibacterial, antiviral, and antifungal properties at a sustained high level. Is.

本発明の物質分解除去短繊維において短繊維に付着される空気触媒は、化学薬品を使用せずに、触媒効果により空気中の水分と反応してヒドロペルオキシルラジカル及びスーパーオキシドイオンを生成し、有害物質を分解し、さらに抗菌や消臭などの優れた効果を発揮するものである。   The air catalyst attached to the short fiber in the material decomposition-removed short fiber of the present invention generates hydroperoxyl radicals and superoxide ions by reacting with moisture in the air by a catalytic effect without using chemicals. Decomposes harmful substances and exhibits excellent effects such as antibacterial and deodorant.

空気触媒は、鉄、アルミニウム、カリウム、及びチタンを含む金属組成物からなるものであり、例えば土壌から無機酸または硫酸によって抽出される鉄、アルミニウム、およびカリウムに、四水酸化チタン塩酸塩からのチタンを配合することにより製造されることができる。空気触媒自体は、その作用機序を含め、従来から広く知られており、市販品から入手することが可能である。   The air catalyst is composed of a metal composition containing iron, aluminum, potassium, and titanium. For example, iron, aluminum, and potassium extracted from soil with inorganic acid or sulfuric acid are converted from titanium tetrahydroxide hydrochloride. It can be manufactured by blending titanium. The air catalyst itself, including its mechanism of action, has been widely known so far, and can be obtained from commercial products.

空気触媒中のカリウムは、空気触媒が物質を分解・除去する効果を奏するためのエネルギー源である。カリウムから放出される電子線等が周囲の水分子と衝突し、水和電子、原子状水素、水素ガス、ヒドロキシルラジカル、過酸化水素が生成される。水和電子及び原子状水素は酸化され、ヒドロペルオキシルラジカル及びスーパーオキシドイオンを生成し、ヒドロペルオキシルラジカルは原子状水素とともに過酸化水素を生成する。過酸化水素は鉄により還元され、ヒドロキシラジカル及び水酸化物イオンを生成する（フェントン反応）。過酸化水素は鉄により酸化され、ヒドロペルオキシルラジカル及び水素イオンが生成される。ヒドロキシラジカルとスーパーオキシドイオンは、強い酸化力を有し、これにより物質を分解・除去するとともに、微生物の増殖を阻害する効果を奏する。   Potassium in the air catalyst is an energy source for the air catalyst to have an effect of decomposing and removing substances. Electron beams emitted from potassium collide with surrounding water molecules, and hydrated electrons, atomic hydrogen, hydrogen gas, hydroxyl radicals, and hydrogen peroxide are generated. Hydrated electrons and atomic hydrogen are oxidized to produce hydroperoxyl radicals and superoxide ions, which together with atomic hydrogen produce hydrogen peroxide. Hydrogen peroxide is reduced by iron to generate hydroxy radicals and hydroxide ions (Fenton reaction). Hydrogen peroxide is oxidized by iron to produce hydroperoxyl radicals and hydrogen ions. Hydroxy radicals and superoxide ions have a strong oxidizing power, thereby decomposing / removing substances and inhibiting the growth of microorganisms.

鉄は、上述のようにヒドロキシラジカル及び水酸化物イオンの生成反応（フェントン反応）、並びにヒドロペルオキシルラジカル及び水素イオンの生成反応を促進する。アルミニウムは、対象物または担体への固着・固定のための結合材として機能する。チタンは、アルミニウム、鉄、及びカリウムによる物質分解・除去効果をさらに高める役割を有する。アルミニウム、カリウム及びチタンの含有量は、鉄１００ｐｐｍに対してそれぞれ１００〜５００ｐｐｍ、０．５〜５０ｐｐｍ、０．１〜５０ｐｐｍの割合であることが好ましい。さらに好ましくは、鉄１００ｐｐｍに対してそれぞれ１００〜３００ｐｐｍ、１〜１０ｐｐｍ、０．１〜５ｐｐｍの割合である。また、金属組成物中の鉄含有量は１０〜１００ｐｐｍ、アルミニウム含有量は１０〜１００ｐｐｍ、カリウム含有量は０．１〜１０ｐｐｍ、チタン含有量は０．０１〜１ｐｐｍであることが好ましい。   As described above, iron promotes the formation reaction of hydroxy radicals and hydroxide ions (Fenton reaction) and the formation reaction of hydroperoxyl radicals and hydrogen ions. Aluminum functions as a binding material for fixing and fixing to an object or a carrier. Titanium has a role of further enhancing the substance decomposition / removal effect by aluminum, iron, and potassium. The contents of aluminum, potassium, and titanium are preferably 100 to 500 ppm, 0.5 to 50 ppm, and 0.1 to 50 ppm, respectively, with respect to 100 ppm of iron. More preferably, the ratio is 100 to 300 ppm, 1 to 10 ppm, and 0.1 to 5 ppm, respectively, with respect to 100 ppm of iron. Further, the iron content in the metal composition is preferably 10 to 100 ppm, the aluminum content is 10 to 100 ppm, the potassium content is 0.1 to 10 ppm, and the titanium content is preferably 0.01 to 1 ppm.

空気触媒が表面に付着される短繊維は、繊維長が３０〜７０ｍｍで単糸繊度が２．０〜１１．０ｄｔｅｘであることが好ましい。また、かかる短繊維としては、特に限定されないが、ポリエステル短繊維及び／又はアクリル短繊維を使用することが好ましい。短繊維への空気触媒の付着方法としては、従来公知の方法を適宜採用することができるが、例えば空気触媒の成分を短繊維の周囲表面にスプレーで塗布して乾燥する方法や空気触媒の成分を溶解した溶液中に短繊維を浸漬して乾燥する方法が挙げられる。   The short fibers to which the air catalyst is attached to the surface preferably have a fiber length of 30 to 70 mm and a single yarn fineness of 2.0 to 11.0 dtex. Such short fibers are not particularly limited, but polyester short fibers and / or acrylic short fibers are preferably used. As a method of attaching the air catalyst to the short fiber, a conventionally known method can be appropriately employed. For example, a method of spraying the air catalyst component on the peripheral surface of the short fiber and drying, or a component of the air catalyst There is a method in which short fibers are immersed in a solution in which is dissolved and dried.

本発明の物質分解除去短繊維で使用する架橋アクリレート系吸放湿性短繊維は、架橋構造と０．１〜１０ｍｍｏｌ／ｇのカルボキシル基を有するアクリレート系重合体を構成成分とする従来公知の短繊維が使用可能である。かかる短繊維としては、例えば特開２０００−３１４０８２号公報に記載のように、アクリロニトリル含有率が８５〜９５重量％であるアクリル系繊維に対するヒドラジン系化合物による架橋処理によって導入される窒素含有量の増加が、１．０〜５．０重量％である架橋アクリレート系短繊維であって、残存ニトリル基の一部が３．０〜６．０ｍｅｑ／ｇのアルカリ金属塩型カルボキシル基に変換されており、しかも２０℃×５０％ＲＨ条件と２０℃×９５％ＲＨ条件との吸湿率差が５０重量％以上１５０重量％以下である吸放湿性繊維が挙げられる。架橋アクリレート系短繊維は、上述のようにＮａ塩、Ｍｇ塩、Ｃａ塩などの塩型カルボキシル基に変換されたもの以外に、塩型に変換されていないＨ型カルボキシル基タイプのものがある。いずれのタイプも使用可能である。架橋アクリレート系短繊維は、繊維長が３０〜７０ｍｍで単糸繊度が２．０〜１１．０ｄｔｅｘであることが好ましい。   The crosslinked acrylate-based moisture-absorbing / releasing short fibers used in the material-dissolved short fibers of the present invention are conventionally known short fibers comprising a crosslinked structure and an acrylate-based polymer having a carboxyl group of 0.1 to 10 mmol / g as constituent components. Can be used. As such short fibers, for example, as described in JP-A-2000-314082, an increase in nitrogen content introduced by a crosslinking treatment with a hydrazine-based compound with respect to acrylic fibers having an acrylonitrile content of 85 to 95% by weight Is a crosslinked acrylate-based short fiber of 1.0 to 5.0% by weight, and a part of the residual nitrile group is converted to an alkali metal salt type carboxyl group of 3.0 to 6.0 meq / g. In addition, hygroscopic fibers having a difference in moisture absorption between 20 ° C. × 50% RH condition and 20 ° C. × 95% RH condition are 50 wt% or more and 150 wt% or less. Cross-linked acrylate short fibers include those of the H-type carboxyl group type that is not converted to a salt type other than those converted to a salt type carboxyl group such as Na salt, Mg salt, and Ca salt as described above. Either type can be used. The cross-linked acrylate short fiber preferably has a fiber length of 30 to 70 mm and a single yarn fineness of 2.0 to 11.0 dtex.

本発明の物質分解除去短繊維は、上述の空気触媒を繊維表面に付着した短繊維と架橋アクリレート系吸放湿性短繊維とを質量比で５：９５〜５０：５０の割合で混綿機などを使用して均一に混合して使用することが好ましい。本発明の寝具用中綿における空気触媒を繊維表面に付着した短繊維と架橋アクリレート系吸放湿性短繊維の割合は、それぞれ３〜２０質量％、５〜５０質量％であることが好ましい。   The material decomposition-removed short fiber of the present invention is a mixture of a short fiber having the above-mentioned air catalyst attached to the fiber surface and a crosslinked acrylate-based moisture-absorbing / releasing short fiber at a mass ratio of 5:95 to 50:50. It is preferable to use and mix evenly. It is preferable that the ratio of the short fiber which adhered the air catalyst to the fiber surface and the bridge | crosslinking acrylate type moisture absorption / release short fiber in the batting for this invention is 3-20 mass% and 5-50 mass%, respectively.

本発明の物質分解除去短繊維における空気触媒の金属組成物の含有量は、好ましくは０．０１質量％以上、より好ましくは０．０３質量％以上、さらに好ましくは０．０５質量％以上であり、上限は特に限定されないが、経済的な観点から２０質量％である。また、本発明の物質分解除去短繊維における架橋アクリレート系吸放湿性短繊維の含有量は、５０質量％以上、好ましくは６０質量％以上であり、上限は特に限定されないが、経済的な観点から９５質量％である。   The content of the metal composition of the air catalyst in the material decomposition-removed short fiber of the present invention is preferably 0.01% by mass or more, more preferably 0.03% by mass or more, and further preferably 0.05% by mass or more. The upper limit is not particularly limited, but is 20% by mass from an economical viewpoint. Further, the content of the crosslinked acrylate-based moisture-absorbing / releasing short fibers in the material decomposition-removed short fibers of the present invention is 50% by mass or more, preferably 60% by mass or more, and the upper limit is not particularly limited, but from an economical viewpoint. 95% by mass.

本発明の寝具用中綿では、加工の容易性、コスト、及び嵩高性の点から、上述の物質分解除去短繊維以外の短繊維を使用する。寝具用中綿中の物質分解除去短繊維以外の短繊維の使用割合は、２０〜８０質量％であることが好ましい。物質分解除去短繊維以外の短繊維としては、特に限定されないが、ポリエステル短繊維、アクリル短繊維、及び再生セルロース短繊維からなる群から選ばれる短繊維を使用することが好ましい。これらの短繊維は、単独で又は複数種の組み合わせで使用することができる。かかる短繊維は、繊維長が３０〜７０ｍｍで単糸繊度が２．０〜１１．０ｄｔｅｘであることが好ましい。   In the batting for the bedding of the present invention, short fibers other than the above-mentioned material decomposition-removed short fibers are used from the viewpoint of ease of processing, cost, and bulkiness. It is preferable that the use ratio of the short fibers other than the material-decomposition-removed short fibers in the cotton for bedding is 20 to 80% by mass. Short fibers other than the material-dissolved short fibers are not particularly limited, but it is preferable to use short fibers selected from the group consisting of polyester short fibers, acrylic short fibers, and regenerated cellulose short fibers. These short fibers can be used alone or in combination of plural kinds. Such short fibers preferably have a fiber length of 30 to 70 mm and a single yarn fineness of 2.0 to 11.0 dtex.

上述の物質分解除去短繊維と、物質分解除去短繊維以外の短繊維とを均一に混合した短繊維は、従来公知の一般的な中綿の製造方法によって中綿に加工することができる。例えば、原料短繊維を解繊機で予備解繊混合した後、カード機にてウェブ状に加工する方法を適用することができる。このようにして得られた本発明の中綿は、厚み２０〜１５０ｍｍ、目付２００〜６００ｇ／ｍ２、比容積２０〜４００ｃｍ３／ｇであることが好ましい。 The short fibers obtained by uniformly mixing the above-mentioned material decomposition-removed short fibers and short fibers other than the material decomposition-removed short fibers can be processed into batting by a conventionally known general method for producing batting. For example, it is possible to apply a method in which raw short fibers are pre-defibrated and mixed with a defibrator and then processed into a web with a card machine. The batting of the present invention thus obtained preferably has a thickness of 20 to 150 mm, a basis weight of 200 to 600 g / m 2 , and a specific volume of 20 to 400 cm 3 / g.

本発明の寝具用中綿は、様々な用途に展開することができるが、その物質分解除去性能から人体が長時間密着する掛け布団又は敷き布団又は枕の中綿として使用することが好ましい。掛け布団又は敷き布団又は枕の中綿としての使用方法は、特に限定されず、従来公知の方法を採用することができる。   The padding for bedding of the present invention can be developed for various uses, but is preferably used as a comforter, a mattress or a pillow for a human body to adhere for a long time because of its material decomposition and removal performance. The method for using the comforter, the mattress or the pillow is not particularly limited, and a conventionally known method can be employed.

本発明の寝具用中綿は、アンモニア、酢酸、イソ吉草酸、硫化水素、インドール、トルエン、一酸化窒素、二酸化窒素などの幅広い有機及び無機物質（金属を除く）を持続的に分解除去することができる。また、菌やウイルスやカビの増殖を抑制する抗菌機能も有する。さらに、タバコのヤニなどの汚れ物質や花粉へも適応可能である。また、果物や野菜などの生鮮食品より生成する成長促進ホルモン（エチレンガス）の分解も可能である。   The filling for bedding of the present invention can continuously decompose and remove a wide range of organic and inorganic substances (excluding metals) such as ammonia, acetic acid, isovaleric acid, hydrogen sulfide, indole, toluene, nitric oxide and nitrogen dioxide. it can. It also has an antibacterial function that suppresses the growth of bacteria, viruses, and molds. Furthermore, it can be applied to pollutants such as tobacco dust and pollen. It is also possible to decompose growth promoting hormone (ethylene gas) produced from fresh foods such as fruits and vegetables.

本発明の寝具用中綿の効果を実施例によって以下に示すが、本発明はこれらに限定されるものではない。   Although the effect of the batting for bedding of the present invention is shown below by examples, the present invention is not limited to these.

実施例１
（１）空気触媒を繊維表面に付着した短繊維Ａの準備
空気触媒として市販の「ＴｉＯＴｉＯ」（（株）サンワード商会製）を用意した。この「ＴｉＯＴｉＯ」の金属組成を分析したところ、鉄１７ｐｐｍ、アルミニウム２４ｐｐｍ、カリウム０．２２ｐｐｍ、チタン０．０８ｐｐｍであり、鉄１００ｐｐｍに対してアルミニウム１４１ｐｐｍ、カリウム１．２９ｐｐｍ、チタン０．４７ｐｐｍの含有割合であった。繊維長６４ｍｍ、単糸繊度６．６ｄｔｅｘの開繊したポリエステル短繊維をベルトコンベヤーに乗せ、スプレーを用いて空気触媒の付着量が２．０質量％となるように塗布した。塗布したポリエステルを１２０℃で３分間乾燥処理し、空気触媒を繊維表面に付着した短繊維Ａを得た。 Example 1
(1) Preparation of short fiber A with air catalyst attached to fiber surface A commercially available “TiOTiO” (manufactured by Sunward Shokai Co., Ltd.) was prepared as an air catalyst. When the metal composition of this “TiOTiO” was analyzed, it was iron 17 ppm, aluminum 24 ppm, potassium 0.22 ppm, titanium 0.08 ppm, and the content ratio of aluminum 141 ppm, potassium 1.29 ppm, titanium 0.47 ppm with respect to iron 100 ppm. Met. The opened polyester short fiber having a fiber length of 64 mm and a single yarn fineness of 6.6 dtex was placed on a belt conveyor, and was applied using a spray so that the amount of air catalyst adhered was 2.0 mass%. The applied polyester was dried at 120 ° C. for 3 minutes to obtain a short fiber A in which an air catalyst was adhered to the fiber surface.

（２）架橋アクリレート系吸放湿性短繊維Ｂの準備
架橋アクリレート系吸放湿性短繊維Ｂとして「モイスファイン」（東洋紡（株）製）を使用した。この短繊維Ｂの繊維長は４８ｍｍ、単糸繊度は５．１ｄｔｅｘであった。 (2) Preparation of crosslinked acrylate-based moisture-absorbing / releasing short fibers B As the crosslinked acrylate-based moisture-absorbing / releasing short fibers B, “MOIS FINE” (manufactured by Toyobo Co., Ltd.) was used. The short fiber B had a fiber length of 48 mm and a single yarn fineness of 5.1 dtex.

（３）短繊維Ａ及び短繊維Ｂ以外の短繊維Ｃの準備
短繊維Ｃとして繊維長６４ｍｍ、単糸繊度６．６ｄｔｅｘの汎用ポリエステル短繊維を用意した。 (3) Preparation of short fibers C other than short fibers A and short fibers B General-purpose polyester short fibers having a fiber length of 64 mm and a single yarn fineness of 6.6 dtex were prepared as the short fibers C.

（４）中綿の作成
短繊維Ａと短繊維Ｂと短繊維Ｃを予備解繊機でそれぞれ１：２：２の質量比となるように解繊・混合してからカード機にてウェブ状に加工し、目付３５４ｇ／ｍ２の中綿を得た。得られた中綿の比容積は、２８３ｃｍ３／ｇであった。 (4) Preparation of batting Short fibers A, short fibers B, and short fibers C are defibrated and mixed with a preliminary defibrator to a mass ratio of 1: 2: 2, and then processed into a web by a card machine. As a result, a batting of 354 g / m 2 was obtained. The specific volume of the obtained batting was 283 cm 3 / g.

（５）掛け布団の作成
上記のようにして得られた中綿をポリエステル１００％の織物からなる側地の中に入れ、キルティング機械を用いて格子状に加工し、掛け布団を得た。 (5) Creation of comforter The batting obtained as described above was put into a side fabric made of 100% polyester fabric and processed into a lattice using a quilting machine to obtain a comforter.

実施例２
空気触媒として、市販品ではなく、特開２００７−２１５９８８号公報の製造例１（金属組成物製造）に記載の方法に従って作製した土壌由来の金属組成物からなる空気触媒を使用した以外は、実施例１と同様にして中綿及び掛け布団を作成した。なお、ここでの空気触媒の金属組成物中の金属元素の種類と含有量について同様に分析したところ、鉄、アルミニウム、カリウム、チタンはそれぞれ２３ｐｐｍ、３３ｐｐｍ、０．８１ｐｐｍ、０．０７ｐｐｍであり、鉄１００ｐｐｍに対してアルミニウム１４３ｐｐｍ、カリウム３．５２ｐｐｍ、チタン０．３０ｐｐｍの含有割合であった。 Example 2
As an air catalyst, it was carried out except that it was not a commercial product, but an air catalyst composed of a metal composition derived from soil prepared according to the method described in Production Example 1 (metal composition production) of JP-A-2007-215988 was used. In the same manner as in Example 1, a batting and a comforter were prepared. In addition, when it analyzed similarly about the kind and content of the metal element in the metal composition of an air catalyst here, iron, aluminum, potassium, and titanium are 23 ppm, 33 ppm, 0.81 ppm, and 0.07 ppm, respectively. The content was 143 ppm of aluminum, 3.52 ppm of potassium, and 0.30 ppm of titanium with respect to 100 ppm of iron.

実施例３
架橋アクリレート系吸放湿性短繊維Ｂとして「ベルオアシス」（帝人（株）製）を使用した以外は、実施例１と同様にして中綿及び掛け布団を作成した。この短繊維Ｂの繊維長は５１ｍｍ、単糸繊度９．０ｄｔｅｘであった。 Example 3
A batting and comforter were prepared in the same manner as in Example 1 except that “BEL OASIS” (manufactured by Teijin Ltd.) was used as the crosslinked acrylate-based moisture-absorbing and releasing fiber B. The short fiber B had a fiber length of 51 mm and a single yarn fineness of 9.0 dtex.

実施例４，５
表１に記載の中綿の構成比率にそれぞれ変更した以外は、実施例１と同様にして中綿及び掛け布団を作成した。 Examples 4 and 5
A batting and a comforter were prepared in the same manner as in Example 1 except that the composition ratio of the batting shown in Table 1 was changed.

実施例６
目付を変更した以外は実施例１と同様にして敷き布団用中綿を製造し、目付が５１８ｇ／ｍ２の中綿を得た。得られた中綿をポリエステル１００％の織物からなる側地の中に入れ、キルティング機械を用いて格子状に加工し、敷き布団を得た。 Example 6
A batting for mattress was produced in the same manner as in Example 1 except that the basis weight was changed, and a filling with a basis weight of 518 g / m 2 was obtained. The obtained batting was put into a side cloth made of 100% polyester fabric and processed into a lattice using a quilting machine to obtain a mattress.

比較例１
空気触媒を繊維表面に付着した短繊維Ａの構成分を全て架橋アクリレート系吸放湿性短繊維Ｂにした以外は、実施例１と同様にして中綿及び掛け布団を作成した。 Comparative Example 1
A batting and a comforter were prepared in the same manner as in Example 1 except that all the constituents of the short fiber A with the air catalyst attached to the fiber surface were changed to the crosslinked acrylate-based moisture-absorbing / releasing short fibers B.

比較例２
架橋アクリレート系吸放湿性短繊維Ｂの構成分を全て空気触媒を繊維表面に付着した短繊維Ａにした以外は、実施例１と同様にして中綿及び掛け布団を作成した。 Comparative Example 2
A batting and a comforter were prepared in the same manner as in Example 1 except that the short-chain A in which the air-catalyst was adhered to the fiber surface was used for all the components of the crosslinked acrylate-based moisture-absorbing / releasing short fiber B.

上記のようにして得られた実施例１〜５の掛け布団、実施例６の敷き布団及び比較例１、２の掛け布団は、いずれも使用感や嵩高性に関して良好であった。さらに、実施例１〜５の掛け布団、実施例６の敷き布団及び比較例１、２の掛け布団を１０ｃｍ×１０ｃｍに切断した試料を用いてアンモニア、酢酸、イソ吉草酸、ノネナールの臭気成分に関して経時的な分解・除去効果を確認するためにＳＥＫマーク繊維製品認証基準（ＪＥＣ３０１）（一般社団法人繊維評価技術協議会）の消臭性試験に従って二時間後の臭気成分の減少率を測定した。   The comforters of Examples 1 to 5, the mattress of Example 6 and the comforters of Comparative Examples 1 and 2 obtained as described above were all good in terms of usability and bulkiness. Furthermore, with respect to the odor components of ammonia, acetic acid, isovaleric acid, and nonenal over time using samples obtained by cutting the comforters of Examples 1 to 5, the comforters of Example 6, and the comforters of Comparative Examples 1 and 2 into 10 cm × 10 cm. In order to confirm the decomposition / removal effect, the rate of decrease in odor components after 2 hours was measured according to the deodorization test of the SEK Mark Textile Product Certification Standard (JEC301) (Fiber Evaluation Technology Council).

具体的には、各試料を用意し、これらの試料を２０℃×６５％ＲＨの条件下で２４時間調湿した後、５リットルのサンプリングバッグにそれぞれ封入した。試料を封入したテドラバッグ中に３リットルの２０℃×６５％ＲＨの空気と所定の初発濃度となるようにした所定の物質（アンモニア、酢酸、イソ吉草酸、ノネナール）を添加し、２０℃×６５％ＲＨの条件で２時間経過後の添加物質の濃度（質量％）を検知管で測定し、臭気減少率（％）を算出した。なお、各試料の臭気減少率（％）は、洗濯回数０回及び５回後の試料の両方で確認した。洗濯は、ＪＩＳ Ｌ０２１７ １０３法に従ってＪＡＦＥＴ標準配合洗剤を使用して行ない、吊干しで乾燥させた。それらの結果を表１に示す。   Specifically, each sample was prepared, and these samples were conditioned at 20 ° C. × 65% RH for 24 hours, and then sealed in a 5-liter sampling bag. To a Tedra bag containing the sample, 3 liters of 20 ° C. × 65% RH air and a predetermined substance (ammonia, acetic acid, isovaleric acid, nonenal) having a predetermined initial concentration are added, and 20 ° C. × 65 The concentration (% by mass) of the additive substance after 2 hours under the condition of% RH was measured with a detector tube, and the odor reduction rate (%) was calculated. In addition, the odor reduction rate (%) of each sample was confirmed in both the samples after 0 times and 5 times of washing. Laundry was performed using a JAFET standard detergent according to JIS L0217 103 method and dried by hanging. The results are shown in Table 1.

Figure 0006078191
Figure 0006078191

表１の結果からわかるように、空気触媒と架橋アクリレート系吸放湿性短繊維を併用した物質分解除去短繊維を含む中綿から構成される実施例１〜５の掛け布団及び実施例６の敷き布団は、いずれもアンモニア、酢酸、イソ吉草酸、ノネナールに対して高い消臭効果（物質分解・除去効果）を示した。これに対して架橋アクリレート系吸放湿性短繊維のみを使用した比較例１や空気触媒のみを使用した比較例２の掛け布団は、実施例１〜５の掛け布団及び実施例６の敷き布団より明らかに劣る消臭効果（物質分解・除去効果）であった。   As can be seen from the results in Table 1, the comforters of Examples 1 to 5 and the mattresses of Example 6 composed of batting containing material decomposition-removed short fibers using an air catalyst and a cross-linked acrylate-based moisture-absorbing / releasing short fiber, All showed high deodorizing effect (substance decomposition / removal effect) against ammonia, acetic acid, isovaleric acid, and nonenal. On the other hand, the comforters of Comparative Example 1 using only crosslinked acrylate-based moisture-absorbing / releasing short fibers and Comparative Example 2 using only an air catalyst are clearly inferior to the comforters of Examples 1 to 5 and the comforter of Example 6. Deodorizing effect (substance decomposition / removal effect).

本発明の寝具用中綿は、幅広い種類の物質に対して高い分解・除去する能力を持続的に有するので、人間の身体が密着する掛け布団や敷き布団や枕などの寝具の中綿として極めて有用である。   The padding for bedding of the present invention has a high ability to decompose and remove a wide variety of substances continuously, so it is extremely useful as a padding for bedding such as comforters, mattresses and pillows to which a human body adheres.

Claims (4)

鉄、アルミニウム、カリウム、及びチタンを含む金属組成物からなり、かつ金属組成物中の金属含有割合が鉄１００ｐｐｍに対してアルミニウム１００〜５００ｐｐｍ、カリウム０．５〜５０ｐｐｍ、チタン０．１〜５０ｐｐｍである空気触媒を繊維表面に付着した短繊維、及び架橋アクリレート系吸放湿性短繊維からなる物質分解除去短繊維と、物質分解除去短繊維以外の短繊維とからなる中綿であって、物質分解除去短繊維中の金属組成物の含有量が０．０１質量％以上であり、架橋アクリレート系吸放湿性短繊維の含有量が５０質量％以上であることを特徴とする寝具用中綿。   It consists of a metal composition containing iron, aluminum, potassium, and titanium, and the metal content in the metal composition is 100 to 500 ppm of aluminum, 0.5 to 50 ppm of potassium, and 0.1 to 50 ppm of titanium with respect to 100 ppm of iron. It is a batting consisting of short fibers with a certain air catalyst attached to the fiber surface and short fibers other than the short fibers other than the material decomposed and removed short fibers composed of the cross-linked acrylate moisture-absorbing and releasing short fibers, and the material decomposed and removed. A filling for bedding characterized in that the content of the metal composition in the short fibers is 0.01% by mass or more, and the content of the crosslinked acrylate-based moisture-absorbing / releasing moisture fibers is 50% by mass or more. 物質分解除去短繊維以外の短繊維がポリエステル短繊維、アクリル短繊維、及び再生セルロース短繊維からなる群から選ばれる少なくとも１種の短繊維であることを特徴とする請求項１に記載の寝具用中綿。   2. The bedding according to claim 1, wherein the short fibers other than the material-decomposed and removed short fibers are at least one kind of short fibers selected from the group consisting of polyester short fibers, acrylic short fibers, and regenerated cellulose short fibers. Batting. 空気触媒を繊維表面に付着した短繊維がポリエステル短繊維及び／又はアクリル短繊維であることを特徴とする請求項１又は２に記載の寝具用中綿。   3. The bedding pad for bedding according to claim 1, wherein the short fiber having an air catalyst attached to the fiber surface is a polyester short fiber and / or an acrylic short fiber. 掛け布団又は敷き布団又は枕の中綿として使用されることを特徴とする請求項１〜３のいずれかに記載の寝具用中綿。   The bedding pad for bedding according to any one of claims 1 to 3, wherein the pad is used as a comforter, a mattress or a pillow.
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