JP4074939B2 - Deodorant fabric under weak UV - Google Patents
Deodorant fabric under weak UV Download PDFInfo
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- JP4074939B2 JP4074939B2 JP2003322990A JP2003322990A JP4074939B2 JP 4074939 B2 JP4074939 B2 JP 4074939B2 JP 2003322990 A JP2003322990 A JP 2003322990A JP 2003322990 A JP2003322990 A JP 2003322990A JP 4074939 B2 JP4074939 B2 JP 4074939B2
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- titanium oxide
- oxide photocatalyst
- average particle
- fabric
- under weak
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- 239000004744 fabric Substances 0.000 title claims description 44
- 239000002781 deodorant agent Substances 0.000 title claims description 14
- 239000011941 photocatalyst Substances 0.000 claims description 73
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 71
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 71
- 239000002245 particle Substances 0.000 claims description 33
- 239000011163 secondary particle Substances 0.000 claims description 21
- 239000011164 primary particle Substances 0.000 claims description 13
- -1 titanium phosphate compound Chemical class 0.000 claims description 13
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 description 23
- 239000007788 liquid Substances 0.000 description 17
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 230000001877 deodorizing effect Effects 0.000 description 10
- 238000004220 aggregation Methods 0.000 description 8
- 230000002776 aggregation Effects 0.000 description 8
- JUWGUJSXVOBPHP-UHFFFAOYSA-B titanium(4+);tetraphosphate Chemical compound [Ti+4].[Ti+4].[Ti+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O JUWGUJSXVOBPHP-UHFFFAOYSA-B 0.000 description 8
- 238000004332 deodorization Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 235000010338 boric acid Nutrition 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910001463 metal phosphate Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
Description
本発明は、建物、自動車、列車、航空機、船舶の内装に使用されるカーテン、カーペット、壁張地、天井張地、戸襖張地、椅子張地、テーブルクロス、クッション等の内装布帛等の有機繊維の多繊条糸によって構成される布帛に弱紫外線の下で有効な消臭性を付与する布帛の仕上法に関するものである。 The present invention includes interior fabrics such as curtains, carpets, wall coverings, ceiling coverings, door coverings, chair coverings, table cloths, cushions and the like used for interiors of buildings, automobiles, trains, aircrafts, ships, etc. The present invention relates to a method of finishing a fabric that imparts effective deodorizing properties under weak ultraviolet rays to a fabric composed of multifilament yarns of organic fibers.
酸化チタン光触媒は消臭剤として公知であり、それを分散剤とバインダーとの分散液として布帛に付与する種々の試みがなされている。酸化チタン光触媒としては、アナターゼ型酸化チタン光触媒、ルチル型酸化チタン光触媒、ブルッカイト型酸化チタン光触媒、アモルファス型酸化チタン光触媒が公知であり、布帛の消臭仕上にはアナターゼ型酸化チタン光触媒が有効とされている（例えば、特許文献１参照）。バインダーとしては、リン酸金属系無機物、アパタイト系無機物、不飽和ポリエステル系樹脂、アクリル系樹脂（メチルアクリレート系樹脂、エチルアクリレート系樹脂、ブチルアクリレート系樹脂）、ウレタン系樹脂（ポリエステル系ポリウレタン樹脂、ポリエーテル系ポリウレタン樹脂、ポリカーボネート系ポリウレタン樹脂）、アルキルシリケート系樹脂、シリコン系樹脂、フッ素系樹脂等が公知である（例えば、特許文献２参照）。分散剤には、ヘキサメタリン酸ナトリウム、トリポリリン酸ナトリウム、硼酸、ピロリン酸ナトリウム、メタ硼酸ナトリウム、リン酸三ナトリウム等が使用されている（例えば、特許文献３参照）。
酸化チタン光触媒は、その粒経を細かくすればするほど比表面積を増して消臭効果も向上し、斑なく布帛に付与することが出来、風合い（柔軟可撓性）を損なうことなく消臭性を布帛に付与することが出来ると考えられる。しかし、酸化チタン光触媒は、それを布帛に付与するために分散液として調製するとき、それが凝集して肥大化した二次粒子を形成し易く、その肥大化した二次粒子が沈澱して分散液が経時変質し易く、二次粒子の肥大化によって布帛への付着量も増え、布帛の風合いが損なわれ、付着量のバラツキによって布帛の品質にもバラツキが生じる。 Titanium oxide photocatalyst increases the specific surface area and the deodorizing effect as the particle size becomes finer. It can be applied to the fabric without spots and has a deodorizing property without impairing the texture (soft flexibility). It is considered that can be imparted to the fabric. However, when a titanium oxide photocatalyst is prepared as a dispersion to impart it to the fabric, it tends to form secondary particles that are aggregated and enlarged, and the enlarged secondary particles settle and disperse. The liquid easily changes with time, and the amount of adhesion to the fabric increases due to enlargement of secondary particles, the texture of the fabric is impaired, and the quality of the fabric also varies due to variation in the amount of adhesion.
そこで、酸化チタン光触媒の凝集を抑え、その分散状態を安定に保って布帛に付与するために鋭意検討するに、水に分散した水和リン酸チタン化合物が酸化チタン光触媒に対するバインダーとしての機能と分散剤としての機能とを併せ持ち、酸化チタン光触媒の凝集を抑え、安定した細かい二次粒子の状態を保って酸化チタン光触媒を布帛に付与することが出来る、との知見を得た。更に、種々実験するに、二次粒子を構成する酸化チタン光触媒の一次粒子の粒経を５〜３０ｎｍ、特に１０〜２０ｎｍにするとき、二次粒子の粒経が同じであっても酸化チタン光触媒による消臭効果が著しく高まり、その少ない付着量によって弱紫外線の下でも有効な消臭性を布帛に付与することが出来る、との知見を得た。 Therefore, in order to suppress the aggregation of the titanium oxide photocatalyst and keep the dispersion state stable and impart it to the fabric, the hydrated titanium phosphate compound dispersed in water functions and disperses as a binder for the titanium oxide photocatalyst. In addition, the present inventors have obtained the knowledge that the titanium oxide photocatalyst can be imparted to the fabric while having a function as an agent, suppressing aggregation of the titanium oxide photocatalyst, and maintaining the state of stable fine secondary particles. Furthermore, in various experiments, when the particle size of the primary particles of the titanium oxide photocatalyst constituting the secondary particles is 5 to 30 nm, particularly 10 to 20 nm, even if the particle size of the secondary particles is the same, the titanium oxide photocatalyst. It has been found that the deodorizing effect due to can be remarkably increased, and that the effective amount of deodorizing can be imparted to the fabric even under weak ultraviolet rays due to the small amount of adhesion.
本発明は、かかる知見に基づいて完成されたものであり、その目的とするところは、付着量の少ない酸化チタン光触媒によって弱紫外線の下でも有効な消臭機能を発揮する柔軟可撓な消臭性布帛を提供することにある。 The present invention has been completed on the basis of such knowledge, and its object is to provide a flexible and flexible deodorant that exhibits an effective deodorizing function even under weak ultraviolet rays by a titanium oxide photocatalyst with a small amount of adhesion. It is in providing a fabric.
本発明に係る弱紫外線下消臭性布帛は、平均粒径５〜３０ｎｍの酸化チタン光触媒の一次粒子が、複数個集合して平均粒径２５０ｎｍ以下の二次粒子を形成し、バインダーと共に繊維の表面に付着していることを第１の特徴とする。 The deodorant fabric under weak ultraviolet light according to the present invention is a combination of a plurality of primary particles of titanium oxide photocatalyst having an average particle size of 5 to 30 nm to form secondary particles having an average particle size of 250 nm or less, and the fibers together with the binder. The first feature is that it adheres to the surface.
本発明に係る弱紫外線下消臭性布帛の第２の特徴は、上記第１の特徴に加えて、バインダーがリン酸チタン化合物である点にある。 The second feature of the deodorant fabric under weak ultraviolet light according to the present invention is that, in addition to the first feature, the binder is a titanium phosphate compound.
本発明に係る弱紫外線下消臭性布帛の第３の特徴は、上記第１、第２の何れかの特徴に加えて、酸化チタン光触媒の一次粒子の平均粒径が１０〜２０ｎｍである点にある。 The third feature of the deodorant fabric under weak ultraviolet light according to the present invention is that, in addition to any of the first and second features, the average particle size of the primary particles of the titanium oxide photocatalyst is 10 to 20 nm. It is in.
本発明に係る弱紫外線下消臭性布帛の第４の特徴は、上記第１、第２、第３の何れかの特徴に加えて、酸化チタン光触媒の二次粒子の平均粒径が６０〜１５０ｎｍである点にある。 The fourth feature of the deodorant fabric under weak ultraviolet light according to the present invention is that, in addition to any of the first, second, and third features, the average particle size of the secondary particles of the titanium oxide photocatalyst is 60 to 60. The point is that it is 150 nm.
本発明に係る弱紫外線下消臭性布帛の第５の特徴は、上記第１、第２、第３、第４の何れかの特徴に加えて、酸化チタン光触媒の付着量が５０〜２０００ｐｐｍである点にある。 In addition to any of the first, second, third, and fourth features, the fifth feature of the deodorant fabric under weak ultraviolet light according to the present invention is an adhesion amount of titanium oxide photocatalyst of 50 to 2000 ppm. There is a point.
本発明に係る弱紫外線下消臭性布帛の第６の特徴は、上記第１、第２、第３、第４、第５の何れかの特徴に加えて、酸化チタン光触媒とバインダーが一体になって繊維の表面に島状に点在して付着している点にある。 The sixth feature of the deodorant fabric under weak ultraviolet light according to the present invention is that, in addition to any of the first, second, third, fourth, and fifth features, the titanium oxide photocatalyst and the binder are integrated. It is in the point which is scattered and attached to the surface of the fiber in the form of islands.
本発明によると、酸化チタン光触媒が平均粒径２５０ｎｍ以下の二次粒子として付与され、その一次粒子の平均粒径を５〜３０ｎｍに、特に、１０〜２０ｎｍとするとき酸化チタン光触媒による消臭効果が高まるので、酸化チタン光触媒の付着量を、繊維の表面に島状に点在する程度に少ない５０〜２０００ｐｐｍに抑え、風合い（柔軟可撓性）を損なうことなく、布帛に弱紫外線の下でも有効な消臭性を付与することが出来る。 According to the present invention, the titanium oxide photocatalyst is provided as secondary particles having an average particle size of 250 nm or less, and the deodorizing effect by the titanium oxide photocatalyst is obtained when the average particle size of the primary particles is 5 to 30 nm, particularly 10 to 20 nm. Therefore, the amount of titanium oxide photocatalyst attached is suppressed to 50 to 2000 ppm, which is small enough to be scattered in the form of islands on the surface of the fiber, and the fabric (soft and flexible) is not damaged, even under weak ultraviolet rays. Effective deodorizing properties can be imparted.
本発明において、酸化チタン光触媒の二次粒子の平均粒径を２５０ｎｍ以下とするのは、酸化チタン光触媒の分散液を付与した後に、その付与した分散液の移動を抑えて布帛を乾燥するには、布帛に対する分散液のピックアップ率（絞り率）を１００％以下にすることが望ましく、そのピックアップ率（絞り率）をもって５０〜２０００ｐｐｍ（０．０５〜０．２０％）の酸化チタン光触媒を布帛に付与するには、分散液に占める酸化チタン光触媒の濃度を５０〜２０００ｐｐｍ（０．０５〜０．２０％）に設定する必要があり、そのように極希釈された低濃度の下で酸化チタン光触媒の二次粒子の分散状態を安定に維持するには、その平均粒径を２５０ｎｍ以下にする必要あり、その平均粒径が３００ｎｍ以上になると、布帛の処理過程で酸化チタン光触媒が沈澱し布帛の品質が不安定になる。 In the present invention, the average particle size of the secondary particles of the titanium oxide photocatalyst is set to 250 nm or less in order to dry the fabric while suppressing the movement of the applied dispersion after applying the dispersion of the titanium oxide photocatalyst. It is desirable that the pickup rate (squeezing rate) of the dispersion with respect to the fabric is 100% or less, and the titanium oxide photocatalyst having a pickup rate (squeezing rate) of 50 to 2000 ppm (0.05 to 0.20%) is applied to the fabric. In order to give, it is necessary to set the concentration of the titanium oxide photocatalyst in the dispersion to 50 to 2000 ppm (0.05 to 0.20%). In order to stably maintain the dispersion state of the secondary particles, the average particle size needs to be 250 nm or less, and when the average particle size is 300 nm or more, Titanium photocatalyst quality precipitated fabric becomes unstable.
勿論、酸化チタン光触媒の二次粒子の分散状態の安定化を図るには、リン酸チタン化合物（バインダー兼分散剤）の配合量を増やすことも考えられるが、その場合には、酸化チタン光触媒が水和リン酸チタン化合物の保護層に被覆され、その消臭機能が損なわれるので不適切である。そのように酸化チタン光触媒の消臭機能が水和リン酸チタン化合物に損なわれないようにするには、水とリン酸チタン化合物と酸化チタン光触媒とによって調製された分散液に占める水和リン酸チタン化合物（水中におけるリン酸チタン化合物）の濃度を酸化チタン光触媒の濃度の３倍以下に、好ましくは、酸化チタン光触媒とリン酸チタン化合物との固形分重量比を、酸化チタン光触媒１０に対しリン酸チタン化合物２５以下（１０対２５以下）、好ましくは酸化チタン光触媒１０に対しリン酸チタン化合物１０以下（１対１以下）にする。そのような酸化チタン光触媒とリン酸チタン化合物との固形分重量比の下で、酸化チタン光触媒の分散状態を安定に維持するには、酸化チタン光触媒の二次粒子の平均粒径を６０〜１５０ｎｍにすることが好ましい。
Of course, in order to stabilize the dispersion state of the secondary particles of the titanium oxide photocatalyst, it is conceivable to increase the amount of the titanium phosphate compound (binder / dispersant). It is unsuitable because it is covered with a protective layer of hydrated titanium phosphate compound and its deodorizing function is impaired. In order to prevent the deodorizing function of the titanium oxide photocatalyst from being impaired by the hydrated titanium phosphate compound, the hydrated phosphoric acid occupies the dispersion prepared by water, the titanium phosphate compound and the titanium oxide photocatalyst. The concentration of the titanium compound (titanium phosphate compound in water) is 3 times or less the concentration of the titanium oxide photocatalyst, and preferably the solid content weight ratio of the titanium oxide photocatalyst to the titanium phosphate compound is phosphorous with respect to the
〔処理液Ａの調製〕
平均粒径６ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となる固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ａを調製した。
〔処理液Ｂの調製〕
平均粒径９ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となる固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ｂを調製した。
〔処理液Ｃの調製〕
平均粒径１２ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となる固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ｃを調製した。
〔処理液Ｄの調製〕
平均粒径１５ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となる固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ｄを調製した。
〔処理液Ｅの調製〕
平均粒径２０ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となる固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ｅを調製した。
〔処理液Ｆの調製〕
平均粒径３０ｎｍの酸化チタン光触媒の一次粒子の分散液に水和リン酸チタンの分散液を、酸化チタン光触媒３に対してリン酸チタンが２となるように固形分重量比をもって混合し、酸化チタン光触媒の凝集を抑えて平均粒径１５０ｎｍの酸化チタン光触媒の二次粒子を生成した酸化チタン光触媒の濃度０．０６重量％の処理液Ｆを調製した。
[Preparation of treatment liquid A]
A dispersion of hydrated titanium phosphate is mixed with a dispersion of primary particles of a titanium oxide photocatalyst having an average particle diameter of 6 nm at a solid content weight ratio of 2 to the titanium oxide photocatalyst 3 to obtain a titanium oxide photocatalyst. A treatment liquid A having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation was prepared.
[Preparation of treatment liquid B]
A dispersion of hydrated titanium phosphate is mixed with a dispersion of primary particles of a titanium oxide photocatalyst having an average particle size of 9 nm at a solid content weight ratio of 2 with respect to the titanium oxide photocatalyst 3, thereby producing a titanium oxide photocatalyst. A treatment liquid B having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation was prepared.
[Preparation of treatment liquid C]
A dispersion of hydrated titanium phosphate is mixed with a dispersion of primary particles of a titanium oxide photocatalyst having an average particle size of 12 nm at a solid content weight ratio of 2 with respect to the titanium oxide photocatalyst 3, thereby producing a titanium oxide photocatalyst. A treatment liquid C having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation was prepared.
[Preparation of treatment liquid D]
A dispersion of hydrated titanium phosphate is mixed with a dispersion of primary particles of a titanium oxide photocatalyst having an average particle size of 15 nm at a solid content weight ratio of 2 with respect to the titanium oxide photocatalyst 3, thereby producing a titanium oxide photocatalyst. A treatment liquid D having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation was prepared.
[Preparation of treatment liquid E]
A dispersion of hydrated titanium phosphate is mixed with a dispersion of primary particles of a titanium oxide photocatalyst having an average particle size of 20 nm at a solid content weight ratio with respect to the titanium oxide photocatalyst 3 so that the titanium phosphate is 2, and the titanium oxide photocatalyst is mixed. A treatment liquid E having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation was prepared.
[Preparation of treatment liquid F]
The dispersion of primary particles of titanium oxide photocatalyst with an average particle size of 30 nm is mixed with a dispersion of hydrated titanium phosphate so that the titanium phosphate is 2 with respect to the titanium oxide photocatalyst 3, and the mixture is oxidized. A treatment liquid F having a concentration of 0.06% by weight of a titanium oxide photocatalyst that produced secondary particles of a titanium oxide photocatalyst having an average particle diameter of 150 nm while suppressing aggregation of the titanium photocatalyst was prepared.
上記の処理液Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆのそれぞれに、総繊度２００ｄｔｅｘ（フィラメント数８４本）のポリエステルマルチフイラメント仮撚加工糸を経糸と緯糸に用いた目付け２００ｇ／ｍ2 のポリエステル織物を浸漬し、絞り率を１００％にしてマングルによって絞液し、１５０℃熱風乾燥機において２分間乾燥処理し、それぞれ処理液Ａによる処理布帛Ａ，処理液Ｂによる処理布帛Ｂ，処理液Ｃによる処理布帛Ｃ，処理液Ｄによる処理布帛Ｄ，処理液Ｅによる処理布帛Ｅ，処理液Ｆによる処理布帛Ｆを得た。 Each of the above-mentioned treatment liquids A, B, C, D, E, and F uses a polyester multifilament false twisted yarn having a total fineness of 200 dtex (84 filaments) as a warp and a weft for a weight of 200 g / m 2 polyester. The fabric is dipped, drawn with mungle at a drawing rate of 100%, dried for 2 minutes in a hot air dryer at 150 ° C., treated fabric A with treated solution A, treated fabric B with treated solution B, and treated solution C, respectively. Treatment cloth C, treatment cloth D with treatment liquid D, treatment cloth E with treatment liquid E, and treatment cloth F with treatment liquid F were obtained.
それらの処理布帛Ａ，Ｂ，Ｃ，Ｄ，ＥおよびＦと未処理布帛Ｇからタテ２２ｃｍ×ヨコ２２ｃｍ（約１０ｇｆ）の試料片（Ａ，Ｂ，Ｃ，Ｄ，Ｅ，ＦおよびＧ）を採取し、それぞれポリエチレンテレフタレート製無色透明フィルム（フィルム厚み１６μｍ）で構成されたタテ・ヨコ各２５ｃｍ矩形の臭気袋（近江オドエアーサービス株式会社製品：臭い袋）に入れ、臭気袋内の空気を除去し、窒素ガスをベースとするアセトアルデヒド４３２ｐｐｍを含む標準ガスと空気によって調製されたアセトアルデヒド１００ｐｐｍ試験用標準ガスを２０００ｃｃ注入し密封して暗室に２４時間放置後に各臭気袋内のアセトアルデヒドガスの濃度をガス検知管（株式会社ガステック製品：アセトアルデヒド検知管Ｎｏ．９２Ｍ，９２ＬａＰ９２Ｌ）によって測定し、その後、紫外線ランプ（ナショナル株式会社製品：ブラックライト，ブルーＦＬ２０Ｓ・ＢＬ−Ｂ，２０ワット）２本と蛍光灯（東芝株式会社製品：ワットブラスター，昼中色ＦＬ２０ＳＳ・Ｄ／１８・２０形，１８ワット）４本を併設した筐形照明装置の照度５５０Ｌｕｘ，紫外線強度０．０５ｍＷ／ｃｍ2 となる箇所に７２時間放置後の各臭気袋内のアセトアルデヒドガスの濃度を再度測定し、暗室に２４時間放置後の測定値を初期ガス濃度とし、照明装置に７２時間放置後の測定値を残留ガス濃度とし、次の〔式１〕によって処理布帛（試料片Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ）による臭気袋内のアセトアルデヒドガスの消臭率（％）を算定した。 Samples (A, B, C, D, E, F, and G) of length 22 cm × width 22 cm (about 10 gf) are collected from the treated fabrics A, B, C, D, E, and F and the untreated fabric G. Then put each 25cm rectangular odor bag (Omi Odo Air Service Co., Ltd. product: odor bag) made of polyethylene terephthalate colorless transparent film (film thickness 16μm), and remove the air in the odor bag A standard gas containing 432 ppm of acetaldehyde based on nitrogen gas and a standard gas for test of 100 ppm of acetaldehyde prepared by air were injected and sealed, and after standing in a dark room for 24 hours, the concentration of acetaldehyde gas in each odor bag was detected. Tube (Gastech products: acetaldehyde detector tube No. 92M, 92LaP92L) Measured, then two ultraviolet lamps (National Corporation product: black light, blue FL20S · BL-B, 20 watts) and fluorescent lamp (Toshiba product: Watt Blaster, daytime color FL20SS · D / 18 · 20) Measure the concentration of acetaldehyde gas in each odor bag after standing for 72 hours at a location where the illumination intensity is 550 Lux and UV intensity is 0.05 mW / cm 2 in a box-type illuminator with 4 wires. The measured value after being left for 24 hours is the initial gas concentration, the measured value after being left in the lighting device for 72 hours is the residual gas concentration, and the treated fabric (sample pieces A, B, C, D, The deodorization rate (%) of acetaldehyde gas in the odor bag by E, F) was calculated.
〔式１〕
消臭率（％）＝１００×（Ｇ／Ｇ’−Ｘ／Ｘ’）÷（Ｇ／Ｇ’）
Ｇ ；試料片Ｇ（未処理布帛）の臭気袋内の初期ガス濃度
Ｇ’；試料片Ｇ（未処理布帛）の臭気袋内の残留ガス濃度
Ｘ ；試料片Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ（処理布帛）の各臭気袋内の初期ガス濃度
Ｘ’；試料片Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ（処理布帛）の各臭気袋内の残留ガス濃度
[Formula 1]
Deodorization rate (%) = 100 × (G / G′−X / X ′) ÷ (G / G ′)
G: Initial gas concentration in the odor bag of the sample piece G (untreated fabric) G ′; Residual gas concentration in the odor bag of the sample piece G (untreated fabric) X: Sample pieces A, B, C, D, E , F (treated fabric) initial gas concentration in each odor bag X ′; residual gas concentration in each odor bag of sample pieces A, B, C, D, E, F (treated fabric)
筐形照明装置の筐内には、蛍光灯１本，蛍光灯１本，紫外線ランプ１本，紫外線ランプ１本，蛍光灯１本，蛍光灯１本の順に、蛍光灯１本と蛍光灯１本と紫外線ランプ１本の間は等間隔に、隣合う紫外線ランプと紫外線ランプの間には隣合う蛍光灯と蛍光灯の間隔の９倍のスペースをあけて、紫外線ランプ２本と蛍光灯４本が平行に並べられている。
次の〔表１〕は、算定された各試料片（Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ）の消臭率（％）を表し、図１は、それらの試料片（Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ）による消臭率（％）と、各試料片（Ａ，Ｂ，Ｃ，Ｄ，Ｅ，Ｆ）に付与された酸化チタン光触媒の一次粒子の平均粒径との関係を表す消臭率−粒径関係曲線Ｋを示す。図１において、横軸は一次粒子の粒径（単位：ｎｍ）を表し、縦軸は消臭率（単位：％）を表す。
Within the housing of the housing lighting device, there is one fluorescent lamp, one fluorescent lamp, one ultraviolet lamp, one ultraviolet lamp, one fluorescent lamp, and one fluorescent lamp in this order, one fluorescent lamp and one fluorescent lamp 1. Two UV lamps and four fluorescent lamps are spaced at an equal interval between the book and one UV lamp, and between the adjacent UV lamps and the UV lamp, a space 9 times as large as the distance between the adjacent fluorescent lamp and the fluorescent lamp. Books are arranged in parallel.
The following [Table 1] shows the deodorization rate (%) of each sample piece (A, B, C, D, E, F) calculated, and FIG. 1 shows those sample pieces (A, B, Relationship between deodorization rate (%) by C, D, E, F) and average particle diameter of primary particles of titanium oxide photocatalyst imparted to each sample piece (A, B, C, D, E, F) Deodorant rate-particle size relationship curve K representing In FIG. 1, the horizontal axis represents the particle size (unit: nm) of the primary particles, and the vertical axis represents the deodorization rate (unit:%).
Ｋ：消臭率−粒径関係曲線 K: Deodorization rate-particle size relationship curve
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