JP2010112149A - Water washable tatami mat - Google Patents
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- JP2010112149A JP2010112149A JP2008311596A JP2008311596A JP2010112149A JP 2010112149 A JP2010112149 A JP 2010112149A JP 2008311596 A JP2008311596 A JP 2008311596A JP 2008311596 A JP2008311596 A JP 2008311596A JP 2010112149 A JP2010112149 A JP 2010112149A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 80
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000011941 photocatalyst Substances 0.000 claims abstract description 54
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000004743 Polypropylene Substances 0.000 claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 18
- 229920001155 polypropylene Polymers 0.000 claims abstract description 18
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
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- 239000011882 ultra-fine particle Substances 0.000 claims description 12
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- 239000000470 constituent Substances 0.000 abstract 1
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- 244000025254 Cannabis sativa Species 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000002781 deodorant agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
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- 230000002265 prevention Effects 0.000 description 3
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- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 2
- 230000000843 anti-fungal effect Effects 0.000 description 2
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- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
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- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
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- 239000008187 granular material Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
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- 230000001603 reducing effect Effects 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 208000008842 sick building syndrome Diseases 0.000 description 1
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- 230000001954 sterilising effect Effects 0.000 description 1
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Images
Abstract
Description
本発明は、少なくともポリプロピレン製畳表面に新規な超微粒繊維状酸化チタンを分散させた透明液状光触媒を噴霧加工して防菌、防臭、防カビ等の効果の向上を図った水洗い可能な畳に関するものである。 The present invention relates to a tatami mat capable of being washed with water by spraying a transparent liquid photocatalyst in which a novel ultrafine fibrous titanium oxide is dispersed on at least a polypropylene tatami surface so as to improve the effects of antibacterial, deodorant, mold and the like. Is.
近時、酸化チタンの光触媒作用を利用した脱臭及び殺菌機能を備えた各種製品が開発されている。これらの製品は、酸化チタン等の光触媒作用により、製品表面に付着した微生物や臭気物質が分解されることによる防菌、防臭する効果をねらったものである。この酸化チタンの光触媒作用は、酸化チタン粒子に紫外線を照射することにより、光触媒の表面に発生した正孔が、光触媒表面の吸着水と反応して、ラジカルＯＨ（水酸基ラジカル）が生成され、このラジカルＯＨが有機物の分子結合を切断することにより、これが粒子表面へ拡散して周囲の有機物質へ酸化又は還元作用として働くためと考えられている。 Recently, various products having deodorizing and sterilizing functions utilizing the photocatalytic action of titanium oxide have been developed. These products are aimed at antibacterial and deodorizing effects due to decomposition of microorganisms and odorous substances adhering to the product surface by photocatalytic action such as titanium oxide. The photocatalytic action of titanium oxide is that when the titanium oxide particles are irradiated with ultraviolet rays, the holes generated on the surface of the photocatalyst react with the adsorbed water on the surface of the photocatalyst to generate radical OH (hydroxyl radical). It is considered that the radical OH breaks the molecular bond of the organic substance, which diffuses to the particle surface and acts as an oxidizing or reducing action on the surrounding organic substance.
酸化チタンは、その化学的特性を利用した用途が広く、例えば酸素と適当な結合力を有すると共に耐酸性を有するため、酸化還元触媒あるいは担体、紫外線の遮断力を利用した化粧材料またはプラスティックの表面コート剤、さらには高屈折を利用した反射防止コート剤、導電性を利用した帯電防止材として用いられたり、これら効果を組み合わせて機能性ハードコート材に用いられたり、さらに光触媒作用を使用した防菌剤、防汚剤、超親水性被膜などに用いられている。 Titanium oxide has a wide range of uses that make use of its chemical properties. For example, it has a suitable binding force with oxygen and has acid resistance, so it has a redox catalyst or carrier, a cosmetic material or a plastic surface that uses ultraviolet blocking power. It is used as a coating agent, an anti-reflection coating agent that utilizes high refraction, an antistatic material that utilizes electrical conductivity, a combination of these effects, and a functional hard coating material. Used for fungicides, antifouling agents, super hydrophilic coatings, etc.
光触媒として使用される酸化チタンは無定型酸化チタンのみならず、アナタース型酸化チタン、ブルッカイト型酸化チタン、ルチル型酸化チタン及びこれらの混晶体、共晶体などの結晶性の酸化チタンが好ましく、特にアナタース型酸化チタン、ブルッカイト型酸化チタンはバンドギャップが高いので広く利用されている。 The titanium oxide used as the photocatalyst is not limited to amorphous titanium oxide, but is preferably crystalline titanium oxide such as anatase-type titanium oxide, brookite-type titanium oxide, rutile-type titanium oxide, and mixed crystals and eutectics thereof. Type titanium oxide and brookite type titanium oxide are widely used because of their high band gap.
また、前記酸化チタン粒子及び酸化チタンと酸化チタン以外の酸化物からなる酸化チタン系複合酸化物粒子の水分散ゾルの濃度としては特に制限はないが、酸化物として５〜４０重量％の範囲にあり、このような濃度範囲にあれば、ゾルは安定であり、アルカリ処理時に粒子が凝集することがなく、効率的に酸化チタン粒子を製造できることが知られている。 The concentration of the water-dispersed sol of the titanium oxide particles and the titanium oxide-based composite oxide particles composed of oxides other than titanium oxide and titanium oxide is not particularly limited, but ranges from 5 to 40% by weight as oxides. In such a concentration range, it is known that the sol is stable and the titanium oxide particles can be produced efficiently without aggregation of the particles during the alkali treatment.
また、このような光触媒作用を有する酸化チタン被膜は、製膜時に高温処理（１５０℃〜４００℃以上）が必要であるため、耐熱性のないガラス、プラスティック、木材、繊維、布、畳などへの製膜は困難である。このため、高温処理した酸化チタン粒子を用いて被膜形成用塗布液を調整し、この塗布液を基材上に塗布して被膜を形成することによって、比較的低温で硬化膜を形成することが試みられている。しかしながら、高温処理された酸化チタン粒子は一般に粒子径が大きく、屈折率が高いために被膜中での酸化チタン粒子による光の散乱が大きく、被塗布基材表面に対して透明性にすぐれた酸化チタン被膜が得られない欠点がある。 In addition, such a titanium oxide film having a photocatalytic action requires high-temperature treatment (150 ° C. to 400 ° C. or more) at the time of film formation, so that it has no heat resistance to glass, plastic, wood, fiber, cloth, tatami, etc. It is difficult to form a film. For this reason, it is possible to form a cured film at a relatively low temperature by adjusting the coating liquid for forming a film using titanium oxide particles treated at a high temperature, and forming the film by applying this coating liquid on a substrate. Has been tried. However, titanium oxide particles treated at high temperature generally have a large particle diameter and a high refractive index, so that light scattering by the titanium oxide particles in the coating is large, and oxidation with excellent transparency with respect to the surface of the substrate to be coated. There is a drawback that a titanium coating cannot be obtained.
また、酸化チタン被膜の形成方法としては、酸化チタン塗布液を基材表面にスピナー法、バーコーター法、スプレー法、ディップ法、フレキソ法などで塗布した後、乾燥し、高温で過熱硬化することは知られている。 In addition, as a method of forming a titanium oxide film, a titanium oxide coating solution is applied to a substrate surface by a spinner method, a bar coater method, a spray method, a dip method, a flexo method, etc., and then dried and cured at a high temperature. Is known.
一方、近時、住宅環境の改善が求められており、例えば、社会問題の一つとして挙げられるシックハウス症候群への対策、家庭介護に付随する高齢者臭気対策等が要請されている。これに対し、畳のある部屋においては、上記光触媒を畳の畳表面に塗布して畳の長期使用における防カビ、防臭，防汚等の対策が求められている。 On the other hand, improvement of the housing environment has recently been demanded, for example, countermeasures against sick house syndrome, which is one of the social problems, and countermeasures for odors of elderly people accompanying home care. On the other hand, in a room with a tatami mat, the above-mentioned photocatalyst is applied to the surface of the tatami mat to take measures such as mold prevention, deodorization and antifouling in the long-term use of the tatami mat.
さらに、近時、畳を風呂場の床や浴槽内に使用して、高齢者の風呂場等での転倒による危険を回避するようにした水や湯に強い水洗い可能な畳が提供されている（本願出願人が提案した特許第３８７３２３９号）。このような、風呂場等の水や湯に長期にさらされる環境下で使用される畳の防カビ、防臭，防汚等の対策も求められている。 Furthermore, recently, tatami mats that can be washed with water and hot water that are used in floors and bathtubs of bathrooms to avoid the danger of falls in elderly bathrooms have been provided. Patent No. 3873239 proposed by the present applicant). Measures such as anti-mold, anti-smudge and anti-smudge of tatami mats used in such an environment exposed to water and hot water such as a bathroom for a long time are also required.
従来、例えば引用文献１（特開２０００−２８８４０５号公報）には、「繊維状酸化チタンを造粒し多孔質粒子にしたことを特徴とする光触媒体、繊維状酸化チタン及び粒子状酸化チタンの混合物を造粒し多孔質粒子にしたことを特徴とする光触媒体」が提供されている。 Conventionally, for example, Cited Document 1 (Japanese Patent Laid-Open No. 2000-288405) discloses that “a photocatalyst characterized by granulating fibrous titanium oxide into porous particles, fibrous titanium oxide, and particulate titanium oxide. There is provided a photocatalyst body characterized by granulating a mixture into porous particles.
そして、該公報［００１２］に「これらの繊維状酸化チタンの形状としては、平均繊維径０．０５〜３０μｍ、好ましくは０．１〜５μｍ、平均繊維長３〜５００μｍ、好ましくは５〜２００μｍ、平均アスペクト比３〜１０００、好ましくは６〜２００のものを例示できる」旨説明されている。 And in the publication [0012], “as the shape of these fibrous titanium oxides, the average fiber diameter is 0.05 to 30 μm, preferably 0.1 to 5 μm, the average fiber length is 3 to 500 μm, preferably 5 to 200 μm, Examples having an average aspect ratio of 3 to 1000, preferably 6 to 200 can be exemplified.
しかしながら、この発明においては、造粒体を多孔質粒子として被処理物に対する接触面積を増大させ、高い光触媒活性が得られるようにしようとするものであるが、繊維径が粗く繊維長さが長いため、畳表裏面及び裏側保護シート繊維に噴霧した場合に、ナノメートル単位の粒子でないため繊維内に充分に分散せず、繊維への付着力が弱い。また、ナノメートルの分散体でなく多孔質体であるので、酸化チタンの比表面積が制限され、粒子表面の露出割合が全体として極めて少なく、高い光触媒活性作用を得ることができない。 However, in the present invention, the granule is made into porous particles to increase the contact area with the object to be processed so as to obtain high photocatalytic activity. However, the fiber diameter is coarse and the fiber length is long. Therefore, when sprayed on the tatami mat front and back and back side protective sheet fibers, they are not dispersed in the fibers because they are not nanometer-sized particles, and the adhesion to the fibers is weak. Further, since it is not a nanometer dispersion but a porous body, the specific surface area of titanium oxide is limited, and the exposed ratio of the particle surface is extremely small as a whole, and a high photocatalytic activity cannot be obtained.
また、引用文献２（特開２００１−２０５０９９号公報）には、「二酸化チタン（ＴｉＯ２）を用いた光触媒において、該二酸化チタンは、空孔率が５〜９０％である多孔質のチタン（Ｔｉ）合金を焼結することにより酸化して形成したアナターゼ型の二酸化チタンであることを特徴とする光触媒」が記載されている。Further, in cited document 2 (Japanese Patent Application Laid-Open No. 2001-205099), “in a photocatalyst using titanium dioxide (TiO 2 ), the titanium dioxide is porous titanium having a porosity of 5 to 90% ( "Photocatalyst characterized in that it is anatase-type titanium dioxide formed by oxidation by sintering Ti) alloy".
そして、［００２４］に「本発明の二酸化チタン触媒１０１・・・で１２００〜１３５０℃で焼結することにより形成したチタン合金であり、チタン微粉末は２０ｎｍ〜２００μｍ程度の微粒子である」旨、また「このチタン合金は、その後８００℃以下の酸化雰囲気中で酸化させることにより、・・・空孔率（又は気孔率）が５〜９０％であるアナターゼ型の多孔質の二酸化チタン合金となる」旨説明されている。 And, [0024] “It is a titanium alloy formed by sintering at 1200 to 1350 ° C. with the titanium dioxide catalyst 101 of the present invention, and the titanium fine powder is a fine particle of about 20 nm to 200 μm”, “This titanium alloy is then oxidized in an oxidizing atmosphere of 800 ° C. or lower to become an anatase-type porous titanium dioxide alloy having a porosity (or porosity) of 5 to 90%. Is explained.
しかしながら、この発明においては、空孔率５〜９０％の多孔質チタン合金であり、繊維状でないか、または繊維をメッシュ状に織り込んだ織物を焼成したものであり、畳表裏面及び裏側保護シート繊維に噴霧した場合に繊維への付着力が弱く、メッシュ状に織り込んだ焼成物は畳表裏面及び裏側保護シート繊維内に充分に入り込まず付着力も悪い。 However, in the present invention, it is a porous titanium alloy having a porosity of 5 to 90% and is not fibrous, or is obtained by firing a fabric in which fibers are woven into a mesh shape. When sprayed on the fiber, the adhesive strength to the fiber is weak, and the fired material woven in a mesh shape does not sufficiently enter the tatami front and back surface and back side protective sheet fibers and has poor adhesive strength.
また、引用文献３（特開２００７−２８４９７９号公報）及び引用文献４（特開２００７−２１７８６８号公報）には、「畳表のポリプロピレン繊維のマルチフィラメントを緯に配してなる人工ラッシュにナイロンの撚糸を経に配して畳糸として引目状もしくは目積状に織成し、さらに光触媒加工を施すようにした通気性畳」が提供されている。 Further, in Cited Document 3 (Japanese Patent Laid-Open No. 2007-284799) and Cited Document 4 (Japanese Laid-Open Patent Publication No. 2007-217868), “Nylon is used in an artificial lash in which multifilaments of polypropylene fibers of a tatami surface are arranged on the weft. There is provided a breathable tatami mat that is twisted and woven as a tatami yarn in the form of stitches or squares, and further subjected to photocatalytic processing.
そして、上記引用文献４公報［０００６］には「・・・例えば、高齢者が利用する各地の温泉や浴室施設、さらには特別老人保養所、ディーサービスセンター等の老人保養・介護施設における入浴施設の浴槽内、・・・純和風の畳と変わらずに利用者、特に高齢者に対して癒しと健康を付与させることを可能とした透水性畳敷構造を提供する」旨説明されている。 In the cited document 4 [0006], "... For example, hot springs and bathroom facilities in various places used by the elderly, and bathing facilities in elderly recreation and care facilities such as special elderly retirement centers and dee service centers. The permeable tatami mat structure that makes it possible to give healing and health to users, particularly elderly people, without changing from a pure Japanese style tatami mat is described.
しかしながら、この発明においては、前記液状光触媒中の無機元素・有機元素の定量値、液状光触媒中における酸化チタンが繊維状である点、またそれが超微粒子である点が開示されておらない。 However, this invention does not disclose the quantitative values of the inorganic and organic elements in the liquid photocatalyst, the point that the titanium oxide in the liquid photocatalyst is fibrous, and the point that it is an ultrafine particle.
また、引用文献５（特開２００５−１９４８６５号公報）には、「多数本のイグサで織られた畳表において光触媒を有する酸化チタンを含む酸化チタン含有粒子がイグサの凸面と凹面に直接付着させた畳表、畳表の表面処理方法及び畳表の表面処理装置」が記載されている。 Further, in cited document 5 (Japanese Patent Laid-Open No. 2005-194865), “a titanium oxide-containing particle containing titanium oxide having a photocatalyst in a tatami surface woven with a large number of rushes was directly attached to the convex and concave surfaces of the rush. A tatami mat, a tatami mat surface treatment method, and a tatami mat surface treatment apparatus ”are described.
そして、「・・・畳表の表面に光触媒を有する酸化チタン含有粒子の水溶液を塗布し、塗布された畳表を乾燥する。表面処理装置は・・・酸化チタン含有粒子の水溶液を塗布する塗布手段と、水溶液が塗布された畳表の表面に圧力空気を吹き付ける圧力空気吹付け手段と、水溶液が塗布された畳表の表面に水蒸気を吹き付ける水蒸気吹付け手段と、酸化チタン含有粒子の水溶液が塗布された畳表の表面を乾燥されるための乾燥手段とを備える」旨説明されている。 And "... apply | coat the aqueous solution of the titanium oxide containing particle | grains which have a photocatalyst to the surface of a tatami surface, and dry the apply | coated tatami surface. The surface treatment apparatus ... The application means which apply | coats the aqueous solution of a titanium oxide containing particle | grain , A pressure air spraying means for spraying pressure air on the surface of the tatami mat surface coated with an aqueous solution, a steam spraying means for spraying water vapor on the surface of the tatami mat surface coated with an aqueous solution, and a tatami mat surface coated with an aqueous solution of titanium oxide-containing particles And a drying means for drying the surface of ".
しかしながら、この発明においては畳表が多数本のイグサであり、また、酸化チタン含有粒子の水溶液を塗布する塗布手段の他に、さらに水溶液が塗布された畳表の表面に圧力空気を吹き付ける圧力空気吹付け手段、水溶液が塗布された畳表の表面に水蒸気を吹き付ける水蒸気吹付け手段、酸化チタン含有粒子の水溶液が塗布された畳表の表面を乾燥されるための乾燥手段を備える必要があり、スプレーするのみで畳表及びその裏面へ強固の固着する有機物組成を有していない。 However, in the present invention, the tatami mat is a large number of rushes, and in addition to the application means for applying the aqueous solution of titanium oxide-containing particles, the pressure air spray for blowing the pressure air onto the surface of the tatami mat on which the aqueous solution is further applied. It is necessary to provide means, water vapor spraying means for spraying water vapor on the surface of the tatami mat surface coated with an aqueous solution, and drying means for drying the surface of the tatami mat surface coated with an aqueous solution of titanium oxide-containing particles. It does not have an organic composition that adheres firmly to the tatami mat and its back.
また、上記公報［００４８］に「・・・粒径が数ｎｍ程度の酸化チタン含有粒子（２％程度）と結着剤としての有機材料と水とを含む水溶液を、畳表に噴霧する」旨説明されている。 In addition, the publication [0048] states that “... an aqueous solution containing titanium oxide-containing particles (about 2%) having a particle size of about several nanometers, an organic material as a binder, and water is sprayed onto the tatami mat”. Explained.
しかしながら、この発明に使用される酸化チタン含有粒子は、粒径が数ｎｍ程度と記載されていても、超微粒の繊維状酸化チタンを使用している旨の開示がなされていない。 However, even though the titanium oxide-containing particles used in the present invention are described as having a particle size of about several nanometers, there is no disclosure that ultrafine fibrous titanium oxide is used.
また、引用文献６（特開２００２−２３５４２８号公報）には、「畳床が生分解性プラスティック発泡体で構成され、畳表が光触媒を表面に配置した構成とされている畳」が記載されている［請求項１］［請求項４］。 Also, cited document 6 (Japanese Patent Laid-Open No. 2002-235428) describes “Tatami where the tatami floor is composed of a biodegradable plastic foam and the tatami surface is configured to have a photocatalyst disposed on the surface”. [Claim 1] [Claim 4].
そして、［００１６］に「畳表として光触媒を表面に配置したものとして光触媒和紙がある。光触媒和紙は、和紙の調湿性により有害物質を和紙に吸着させ、それを光触媒により無害化させる作用を有するものである。この光触媒和紙の例としては、酸化チタンを和紙繊維に固定したものや、イグサに酸化チタンを織り込んだものがある」旨説明されている。 And [0016] “Photocatalytic Japanese paper is a photocatalytic Japanese paper with a photocatalyst disposed on the surface as a tatami surface. Examples of this photocatalytic Japanese paper include those in which titanium oxide is fixed to Japanese paper fibers, and those in which titanium oxide is woven into rushes.
しかしながら、この発明の畳表はイグサであり、また、光触媒は、超微粒の繊維状酸化チタンを分散させた液状の透明光触媒を噴霧するものではない。 However, the tatami mat of the present invention is rush and the photocatalyst is not sprayed with a liquid transparent photocatalyst in which ultrafine fibrous titanium oxide is dispersed.
また、引用文献７（特開２０００−２７４０５５号公報）には、「畳表の表層部の一部または全面に光触媒粒子が存在していることを特徴とする畳［請求項２」が記載されている。 Further, cited document 7 (Japanese Patent Application Laid-Open No. 2000-274055) describes “Tatami characterized in that photocatalyst particles are present on a part of or the entire surface of the surface of the Tatami mat [Claim 2]”. Yes.
そして、畳表がイグサや塩化ビニール樹脂製である［０００４］」旨、「・・・畳表１に光触媒（・・・酸化チタン濃度４０％）をスプレーガンにて１５０ｇ／ｍ２を塗布し８０℃乾燥機で焼き付けする・・・」旨説明されている。And, the tatami surface is made of rush or vinyl chloride resin [0004], “... The photocatalyst (... titanium oxide concentration 40%) is applied to the
しかしながら、この発明においては、畳表がポリプロピレン繊維を使用しておらない。また、酸化チタンを含む液状光触媒をスプレーガンにて塗布するが、８０℃乾燥機で焼き付けしなければならない有機物と考えられる。 However, in this invention, the tatami mat does not use polypropylene fibers. Moreover, although the liquid photocatalyst containing a titanium oxide is apply | coated with a spray gun, it is thought that it is an organic substance which must be baked with an 80 degreeC dryer.
また、引用文献８（実用新案登録第３１３５８３１号公報）には、「い草を横糸とし、光触媒と銀を複合したもの、竹炭を加工し、消臭・抗菌・防カビ効果のある抗菌剤を吹き付けるあるいは練り込ませた麻、綿、化学繊維を縦糸として織り上げることにより、い草本来の風合いや肌触り、香りを損なうことなく、消臭・抗菌・防カビなどの効果持続が期待出来る畳表」が記載されている。 Also, cited reference 8 (utility model registration No. 3135831) states that “weave is a weft, photocatalyst and silver composite, bamboo charcoal is processed, and an antibacterial agent having a deodorizing / antibacterial / antifungal effect is sprayed. Or, by weaving hemp, cotton, and chemical fibers that have been kneaded into warp yarns, there is a tatami table that can be expected to maintain deodorant, antibacterial, and antifungal effects without sacrificing the original texture, texture, and fragrance of grass. ing.
しかしながら、この発明の畳表はい草であり、光触媒は液状光触媒を吹きつけ加工するものではなく、光触媒と銀を複合したもの・・・を吹き付けるあるいは練り込ませた麻、綿、化学繊維を縦糸として織り上げたものである。 However, it is a tatami mat surface embryo of this invention, and the photocatalyst is not processed by spraying a liquid photocatalyst, but a composite of the photocatalyst and silver is blown or kneaded with hemp, cotton, chemical fiber as warp It is woven.
引用文献１ 特開２０００−２８８４０５号公報
引用文献２ 特開２００１−２０５０９９号公報
引用文献３ 特開２００７−２８４９７９号公報
引用文献４ 特開２００７−２１７８６８号公報
引用文献５ 特開２００５−１９４８６５号公報
引用文献６ 特開２００２−２３５４２８号公報
引用文献７ 特開２０００−２７４０５５号公報
引用文献８ 実用新案登録第３１３５８３１号公報Cited
本発明は、繊維状酸化チタンをポリプロピレン製畳表面及び裏面側、さらに保護シートへ分散してそれらに強固に付着することができ、繊維状超微粒子であるため粒子表面の露出度を９０％以上と極めて大きくすると共に、特に高温の熱処理や乾燥を必要とせずスプレーのみで速やかに乾燥固着させて、高い光触媒活性作用を得ることができる水洗い可能な畳を提供することにある。 The present invention can disperse fibrous titanium oxide on the tatami mat surface and back side made of polypropylene, and further firmly adhere to them, and because it is a fibrous ultrafine particle, the degree of exposure of the particle surface is 90% or more. It is to provide a water-washable tatami mat that can be dried and fixed quickly only by spraying and can obtain a high photocatalytic activity without requiring particularly high-temperature heat treatment or drying.
また、本発明は、上記超微粒の繊維状酸化チタンを使用することにより、水分を介した光触媒作用の伝達をより促進でき、湯質改善、畳自体の長期使用による防カビ、防臭、防汚等の対策、使用した石鹸やシャンプー等の化粧料の分解、浴槽内での身体の汚れ（有機物）の分解、洗浄時の畳自体に付着する汚れ（有機物）の分解、浴槽壁のぬめりや汚れ防止、ボイラー内や管の汚れの防止等を極めて効果的に行うことのできる水洗い可能な畳を提供することにある。 In addition, by using the above-mentioned ultrafine fibrous titanium oxide, the present invention can further promote the transmission of photocatalytic action via moisture, improve the quality of hot water, prevent mold, deodorization and antifouling due to long-term use of the tatami mat itself. Measures such as decomposition of used cosmetics such as soap and shampoo, decomposition of body dirt (organic matter) in the bathtub, decomposition of dirt (organic matter) adhering to the tatami mat during washing, slimming and dirt on the bathtub wall An object of the present invention is to provide a water-washable tatami mat that can be used for prevention, prevention of dirt in boilers and pipes and the like.
請求項１の発明は、少なくともポリプロピレン製畳表の表面に液状光触媒を吹付加工するようにした畳において、前記液状光触媒中の無機元素が半定量値において少なくともＴｉが９０〜９７ｗｔ％、Ｓｉが２．３〜３．０ｗｔ％、Ａｇが１．４〜２．２ｗｔ％、Ｚｎが０．２〜０．３ｗｔ％含み、また液状光触媒中の有機元素が定量値において、少なくともＣが５５〜６５ｗｔ％、Ｈが８〜１２ｗｔ％、Ｎが０．２〜０．４ｗｔ％含み、さらに前記液状光触媒中における酸化チタンが繊維状の超微粒子であり、平均繊維幅及び厚さが１〜５０ｎｍ、平均繊維長さが１０〜１０００ｎｍ、平均アスペクト比が２〜１００、比表面積が３０ｍ２／ｇ以上である透明液状光触媒であることを特徴とする水洗い可能な畳を提供するものである。According to the first aspect of the present invention, in the tatami mat, the liquid photocatalyst is sprayed onto at least the surface of the polypropylene tatami mat, the semi-quantitative value of the inorganic element in the liquid photocatalyst is at least 90 to 97 wt%, and Si is 2. 3 to 3.0 wt%, Ag is 1.4 to 2.2 wt%, Zn is 0.2 to 0.3 wt%, and the organic element in the liquid photocatalyst is a quantitative value, at least C is 55 to 65 wt%, H is 8 to 12 wt%, N is 0.2 to 0.4 wt%, and the titanium oxide in the liquid photocatalyst is fibrous ultrafine particles, the average fiber width and thickness are 1 to 50 nm, and the average fiber length It is a transparent liquid photocatalyst having a thickness of 10 to 1000 nm, an average aspect ratio of 2 to 100, and a specific surface area of 30 m 2 / g or more.
この発明においては、繊維状酸化チタンを畳表面及び裏面側、さらに保護シート繊維へ分散してそれらに強固に付着させ、粒子表面の露出度を９０％以上と極めて大きくすると共に、特に高温の熱処理や乾燥を必要とせずスプレーのみで速やかに乾燥固着して、繊維状酸化チタンを畳表面及び裏面側、さらに保護シート繊維に強固に固着乾燥させて高い光触媒活性作用を得ることができる水洗い可能な畳を提供する。また、前記液状光触媒が透明であることから処理後畳表面を変色させることがない。本発明の繊維状酸化チタン超微粒子は、畳表裏面の保護シート繊維にまで進入させて固着することができるので、長期に渡り上記効果を持続させることができる。 In the present invention, fibrous titanium oxide is dispersed on the tatami mat surface and back surface, and further on the protective sheet fiber, and firmly adhered to them, and the degree of exposure of the particle surface is increased to 90% or more, and particularly high temperature heat treatment Can be washed with water that can be dried and fixed quickly only by spraying without needing to be dried, and the fibrous titanium oxide can be firmly fixed and dried on the tatami mat surface and back side, and further on the protective sheet fiber to obtain a high photocatalytic activity. Provide tatami mats. Further, since the liquid photocatalyst is transparent, the tatami mat surface is not discolored after the treatment. Since the fibrous titanium oxide ultrafine particles of the present invention can enter and adhere to the protective sheet fibers on the tatami mat front and back surfaces, the above effects can be maintained over a long period of time.
また、本発明は前記光触媒噴出手段における液状光触媒中の無機元素が半定量値において、少なくともＴｉが９０〜９７ｗｔ％、Ｓｉが２．３〜３．０ｗｔ％、Ａｇが１．４〜２．２ｗｔ％、Ｚｎが０．２〜０．３ｗｔ％含む透明液状光触媒である。 In the present invention, the inorganic element in the liquid photocatalyst in the photocatalyst ejecting means is a semi-quantitative value, at least Ti is 90 to 97 wt%, Si is 2.3 to 3.0 wt%, and Ag is 1.4 to 2.2 wt%. %, A transparent liquid photocatalyst containing Zn in an amount of 0.2 to 0.3 wt%.
したがって、上記の酸化物が残存することにより得られる酸化チタンの紫外線吸収領域、誘電率、光触媒活性、プロトン導電性、固体酸特性等を調整することができ、さらに熱的安定性や化学的安定性等を調節することもできる。また、Ａｇを添加することにより、暗い密閉室内（畳内部も含む）であっても高い光触媒活性作用を得ることができる。さらに、Ｓｉを含むことにより粘度を低くして流動性を高めることができ、繊維状酸化チタン超微粒子を畳表裏及び保護シート繊維内に容易に進入させると共に、速やかに乾燥させることができる。上記範囲外であるとこれらの効果が得られないものと思われる。 Therefore, it is possible to adjust the ultraviolet absorption region, dielectric constant, photocatalytic activity, proton conductivity, solid acid characteristics, etc. of titanium oxide obtained by the above oxide remaining, as well as thermal stability and chemical stability. Sex etc. can also be adjusted. Further, by adding Ag, a high photocatalytic activity can be obtained even in a dark sealed room (including the interior of the tatami mat). Furthermore, by containing Si, the viscosity can be lowered and the fluidity can be improved, and the fibrous titanium oxide ultrafine particles can be easily entered into the tatami mat and the back and the protective sheet fiber and can be quickly dried. If it is out of the above range, it is considered that these effects cannot be obtained.
また、前記光触媒噴出手段における液状光触媒中の有機元素が定量値において、少なくともＣが５５〜６５ｗｔ％、Ｈが８〜１２ｗｔ％、Ｎが０．２〜０．４ｗｔ％含む透明液状光触媒である。 Moreover, the organic element in the liquid photocatalyst in the said photocatalyst ejecting means is a transparent liquid photocatalyst containing at least C of 55 to 65 wt%, H of 8 to 12 wt%, and N of 0.2 to 0.4 wt% in a quantitative value.
したがって、ＣＨＮの有機元素が上記の範囲にあると、特に高温の熱処理や乾燥を必要とせずスプレーのみで速やかに乾燥固着する。また、このような範囲の有機元素であると畳表のポリプロピレン樹脂との相性がよく、繊維状酸化チタンとしてポリプロピレン樹脂の畳表面及び裏面側に強固に固着乾燥させることができる。また、前記液状光触媒を無色透明にすることができ、処理後畳表面を変色させることがない。上記範囲外であるとこれらの効果が得られないものと思われる。 Therefore, when the organic element of CHN is in the above range, it does not require particularly high-temperature heat treatment or drying, and can be quickly dried and fixed only by spraying. Moreover, when it is an organic element of such a range, compatibility with the polypropylene resin of the tatami surface is good, and it can be firmly fixed and dried on the tatami mat surface and back side of the polypropylene resin as fibrous titanium oxide. Further, the liquid photocatalyst can be made colorless and transparent, and the tatami mat surface is not discolored after the treatment. If it is out of the above range, it is considered that these effects cannot be obtained.
さらに、前記液状光触媒中における繊維状酸化チタンが超微粒子であり、平均繊維幅及び厚さが１〜５０ｎｍ、平均繊維長さが１０〜１０００ｎｍ、平均アスペクト比が２〜１００、比表面積が３０ｍ２／ｇ以上である透明液状光触媒である。Further, the fibrous titanium oxide in the liquid photocatalyst is ultrafine particles, the average fiber width and thickness are 1 to 50 nm, the average fiber length is 10 to 1000 nm, the average aspect ratio is 2 to 100, and the specific surface area is 30 m 2. It is a transparent liquid photocatalyst that is at least / g.
したがって、極めて微粒の繊維状酸化チタンを畳表面及び裏面側、さらに保護シート繊維内にくまなく分散させてそれらに強固に付着させできると共に、粒子表面の露出度を９０％以上極めて大きくでき、高い光触媒活性作用を得ることができる。上記範囲外であると、繊維状酸化チタンの反応拡散が充分に行われず、高い光触媒活性作用を得ることができない。好ましくは、平均繊維幅及び厚さが１０〜３０ｎｍ、平均繊維長さが２０〜１００ｎｍ、平均アスペクト比が３〜５０、比表面積が５０ｍ２／ｇ以上であるTherefore, very fine fibrous titanium oxide can be dispersed all over the tatami mat surface and back surface, and further within the protective sheet fiber, and firmly adhered to them, and the degree of exposure of the particle surface can be greatly increased by 90% or more. A photocatalytic activity can be obtained. If it is outside the above range, the reaction diffusion of the fibrous titanium oxide is not sufficiently performed, and a high photocatalytic activity cannot be obtained. Preferably, the average fiber width and thickness are 10 to 30 nm, the average fiber length is 20 to 100 nm, the average aspect ratio is 3 to 50, and the specific surface area is 50 m 2 / g or more.
以下に本発明の一実施形態を図面に基づき説明する。図１に示すように、本発明の水洗い可能な畳は、プラスティック段ボールから成る中空状合成樹脂プレート３ｂを挟んで少なくとも２枚の発泡ポリスチレン製芯材２ａ、２ｂを設け、その表面にポリプロピレン製畳表１を発泡ポリスチレン製芯材２ａ、２ｂの側面で縫合わせて畳Ａを構成している。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the washable tatami mat of the present invention is provided with at least two foamed polystyrene cores 2a and 2b sandwiching a hollow synthetic resin plate 3b made of plastic corrugated cardboard, and a polypropylene tatami mat on the surface thereof. 1 is stitched together on the side surfaces of the foamed polystyrene cores 2a and 2b to constitute a tatami mat A.
前記表面側の発泡ポリスチレン製芯材２ａの上面に他の中空状合成樹脂プレート３ａ、合成樹脂発泡シート４ａ及び消臭保護シート５を挟んでポリプロピレン製畳表１を積層し、裏面の芯材２ｂの下面に合成樹脂発泡シート４ｂを設けてポリプロピレン製畳表１を芯材２ａ、２ｂの側面で縫合わせている。中空状合成樹脂プレート３ａ、３ｂは適度な弾性及び表面平滑性を有し、発泡ポリスチレン製芯材２ａ、２ｂの保護とそれらのずれ合う際に発生する音を防止する。発泡樹脂同士が擦れ合うとぎしぎしと不快音が発生する。畳表１上は合成樹脂発泡シート４ａ及び中空状合成樹脂プレート３ａにより適度な柔軟性を持たせることができる。前記合成樹脂発泡シート４ａ、４ｂは発泡ポリプロピレン、消臭保護シート５は活性炭入りポリエステルシートを使用している。また、合成樹脂発泡シート４ｂは畳Ａを設置する床面との滑りを防止する。尚、６、６は縫い目である。 A polypropylene tatami table 1 is laminated on the upper surface of the foamed polystyrene core material 2a on the surface side with another hollow synthetic resin plate 3a, a synthetic resin foamed sheet 4a and a deodorizing protection sheet 5 interposed therebetween, and the back surface core material 2b. A synthetic resin foam sheet 4b is provided on the lower surface, and the
上記畳Ａの畳表、畳側面、畳裏面の全面に、上記繊維状酸化チタン超微粒子を含む透明液状光触媒を均一に噴霧した。上述した通り、新規な繊維状酸化チタン超微粒子であるためポリプロピレン製畳表面及び畳表裏面、さらに消臭保護シートのポリエステル繊維内にまで強固に付着しているものと推察される。 The transparent liquid photocatalyst containing the fibrous titanium oxide ultrafine particles was uniformly sprayed on the entire surface of the tatami mat A, the tatami mat side, the tatami mat side, and the tatami mat back surface. As described above, since it is a novel fibrous titanium oxide ultrafine particle, it is presumed that it adheres firmly to the polypropylene tatami mat surface and the tatami mat front and back surfaces, and further to the polyester fiber of the deodorizing protective sheet.
本発明においては、繊維状酸化チタンを畳表面及び裏面側、さらに保護シート繊維内へ分散してそれらに強固に付着させ、粒子表面の露出度を９０％以上と極めて大きくすると共に、特に高温の熱処理や乾燥を必要とせずスプレーのみで速やかに乾燥固着して、繊維状酸化チタンを畳表面及び裏面側、さらに保護シート繊維内に強固に固着乾燥させて高い光触媒活性作用を得ることができる水洗い可能な畳を提供できる。また、前記液状光触媒が透明であるから処理後畳表面を変色させることがない。本発明の繊維状酸化チタン超微粒子は、畳表裏面の保護シート繊維にまで進入させて固着することができるので、長期に渡り上記効果を持続させることができる。 In the present invention, fibrous titanium oxide is dispersed in the tatami surface and back surface, and further in the protective sheet fiber, and firmly adhered to them, and the degree of exposure of the particle surface is extremely large as 90% or more. Water washing that can quickly dry and fix by spray alone without requiring heat treatment or drying, and can firmly fix and dry the fibrous titanium oxide on the tatami mat surface and back side, and further inside the protective sheet fiber to obtain a high photocatalytic activity. Can provide possible tatami mats. Further, since the liquid photocatalyst is transparent, the surface of the tatami mat is not discolored after the treatment. Since the fibrous titanium oxide ultrafine particles of the present invention can enter and adhere to the protective sheet fibers on the tatami mat front and back surfaces, the above effects can be maintained over a long period of time.
また、少なくともＴｉ、Ｓｉ、Ａｇ、Ｚｎの酸化物が残存することにより、得られる酸化チタンの紫外線吸収領域、誘電率、光触媒活性、プロトン導電性、固体酸特性等を調整することができ、さらに熱的安定性や化学的安定性等を調節することもできる。また、Ａｇを添加することにより、暗い密閉室内であっても高い光触媒活性作用を得ることができる。さらに、Ｓｉを含むことにより粘度を低くして流動性を高めることができ、繊維状酸化チタン超微粒子を畳表裏及び保護シート繊維内に容易に進入させると共に、速やかに乾燥させることができる。 Further, at least the oxides of Ti, Si, Ag, and Zn can be adjusted to adjust the ultraviolet absorption region, dielectric constant, photocatalytic activity, proton conductivity, solid acid characteristics, and the like of the obtained titanium oxide. Thermal stability, chemical stability, etc. can also be adjusted. Further, by adding Ag, a high photocatalytic activity can be obtained even in a dark sealed room. Furthermore, by containing Si, the viscosity can be lowered and the fluidity can be improved, and the fibrous titanium oxide ultrafine particles can be easily entered into the tatami mat and the back and the protective sheet fiber and can be quickly dried.
また、液状光触媒中のＣＨＮの有機元素が上記の範囲にあると、特に高温の熱処理や乾燥を必要とせずスプレーのみで速やかに乾燥固着する。また、このような範囲の有機元素であると畳表のポリプロピレン樹脂との相性がよく、繊維状酸化チタンとして畳表面及び裏面側に強固に固着乾燥させることができる。また、前記液状光触媒を無色透明にすることができ処理後畳表を変色させるいことがない。 Moreover, when the organic element of CHN in the liquid photocatalyst is in the above range, it does not require a particularly high temperature heat treatment or drying, and is quickly fixed by spraying alone. Moreover, when it is an organic element of such a range, it is compatible with the polypropylene resin of the tatami surface and can be firmly fixed and dried on the tatami mat surface and the back surface side as fibrous titanium oxide. In addition, the liquid photocatalyst can be made colorless and transparent, and the tatami mat surface is not discolored after the treatment.
さらに、前記液状光触媒中における繊維状酸化チタンが超微粒子であり、平均繊維幅及び厚さ、平均繊維長さ、平均アスペクト比、比表面積は上記所定範囲であると、畳表及びその裏面側や保護シート繊維にくまなく分散させてそれらに強固に付着させできると共に、粒子表面の露出度を９０％以上極めて大きくでき、高い光触媒活性作用を得ることができる。 Furthermore, when the fibrous titanium oxide in the liquid photocatalyst is ultrafine particles, and the average fiber width and thickness, average fiber length, average aspect ratio, and specific surface area are within the predetermined ranges, the tatami surface and its back side and protection It can be dispersed throughout the sheet fiber and firmly adhered to them, and the particle surface exposure can be extremely increased by 90% or more, and a high photocatalytic activity can be obtained.
Ａ 畳
１ 畳表（ポリプロピレン）
２ａ、２ｂ 芯材（発泡ポリスチレン）
３ａ、３ｂ 中空状合成樹脂プレート（プラスティック段ボール）
４ａ、４ｂ 合成樹脂発泡シート（発泡ポリプロピレン）
５ 消臭シート（活性炭入りポリエステル）
６、６ 縫い目A
2a, 2b Core material (polystyrene foam)
3a, 3b Hollow synthetic resin plate (plastic cardboard)
4a, 4b Synthetic resin foam sheet (foamed polypropylene)
5 Deodorant sheet (polyester with activated carbon)
6, 6 seams
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008311596A JP2010112149A (en) | 2008-11-09 | 2008-11-09 | Water washable tatami mat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008311596A JP2010112149A (en) | 2008-11-09 | 2008-11-09 | Water washable tatami mat |
Publications (1)
| Publication Number | Publication Date |
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| JP2010112149A true JP2010112149A (en) | 2010-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2008311596A Pending JP2010112149A (en) | 2008-11-09 | 2008-11-09 | Water washable tatami mat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014088723A (en) * | 2012-10-31 | 2014-05-15 | Keiji Iwamoto | Tatami bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014088723A (en) * | 2012-10-31 | 2014-05-15 | Keiji Iwamoto | Tatami bed |
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