JP2009209498A - Deodorant cloth product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cloth product processed, without lowering the working efficiency, by using a deodorant that has a balanced deodorant effect against various bad smells, such as aldehydes and alkali compounds, and that is reduced in precipitates. <P>SOLUTION: A deodorant composition (S) formed of (P) a deodorant containing (a) a polymer having a weight average molecular weight of 5,000-1,000,000 and including an acid anhydride monomer unit, (b) a sulfite, (c) a water-retentive agent and/or (d) a photocatalyst, (e) an inorganic porous substance and/or an inorganic layered substance, and (f) water, (Q) a fluororesin, and (R) a surfactant, is applied on the surface of a cloth product and then dried. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a deodorant cloth product. In particular, the present invention relates to a deodorizing cloth product having an excellent deodorizing effect against a wide range of bad odors.

  Various fiber deodorants that use a photocatalyst have been proposed. For example, Patent Document 1 discloses a fiber fabric in which a photocatalyst and a water-absorbing porous inorganic substance are supported on a fiber using an acrylic silicon-based binder. In Patent Document 2, a deodorizing material composed of a hydrazine derivative and a photocatalyst is applied to the surface fiber layer with a silicon-based binder resin, and a backing composition mixed with activated carbon and a hydrazine derivative is applied to the carpet back surface. A carpet is disclosed.

JP-A-2005-194652 JP 2005-198684 A

  In the deodorization of fabric products, if the deodorizer is processed by a coating method such as dipping, spraying, or coating, the drying time increases and the work efficiency decreases. In addition, the deodorant adheres, and the deodorizing effect corresponding to the coating amount does not appear. In addition, if the fiber surface is fixed with only the deodorant, the fixing strength is low, so that the deodorant may drop off and the deodorizing effect may not be maintained.

  Generally, an alkaline compound such as an amine compound or sodium sulfite is used for aldehyde deodorization. On the other hand, acidic compounds are used for ammonia deodorization and trimethylamine deodorization. And when an alkaline compound and an acidic compound are mixed with one liquid, it will each react. For this reason, it was difficult to obtain a deodorant having a deodorizing performance with a good balance over a wide range of malodors in a single solution.

  If a large amount of inorganic deodorant is used, the texture of the fabric product is lowered, and if the amount is small, the deodorizing performance becomes insufficient. Therefore, the amount of the inorganic substance needs to be kept appropriate. On the other hand, since the water-absorbing porous inorganic substance and activated carbon are likely to precipitate in the aqueous dispersion, it is necessary to reduce the fluctuation in the amount of the inorganic substance in the aqueous dispersion due to precipitation. In the processing step of applying a deodorant to the fabric product, re-stirring is required when precipitates are generated. When re-stirring is performed, working efficiency may be reduced due to bubbles caused by re-stirring. In addition, when a large amount of inorganic deodorant is used, the texture of the fabric product is lowered, and conversely, when the amount is small, the deodorizing performance becomes insufficient.

  A deodorizing substance that has a deodorizing effect in a single liquid in a wide range of gases such as aldehydes and alkaline compounds has not been developed at present. In addition, it is known that deodorizers with amino groups such as hydrazine derivatives can be highly effective in deodorizing formaldehyde, but amino groups reduce the light fastness of dyed fabric products. In many cases, discoloration was noticeable, and it was difficult to use.

  The present invention has been made in view of the above, and has a deodorizing effect in a balanced manner against various odors such as aldehydes and alkaline compounds, and using a deodorant with reduced precipitates, reduces work efficiency. An object of the present invention is to provide a fabric product that is processed without causing a decrease in light fastness.

    In addition, the present invention provides a deodorant cloth product that has a deodorizing effect in a balanced manner against various malodors such as aldehydes, trimethylamine, ammonia, etc., and has been deodorized using a deodorant with reduced sediment. The purpose is to provide.

  In order to solve the above-mentioned problems and achieve the object, according to the present invention, (a) a polymer containing an acid anhydride monomer unit having a weight average molecular weight of 5,000 to 1,000,000. And (b) a sulfite, (c) a water retention agent and / or (d) a photocatalyst, (e) an inorganic porous material and / or an inorganic layered material, and (f) water ( Provided is a deodorized cloth product obtained by applying (S) a deodorizing composition comprising P) deodorant, (Q) fluororesin, and (R) surfactant to the surface of the cloth product and then drying. it can.

  Moreover, according to the preferable aspect of this invention, the compounding quantity of component (a) is 0.05-5 weight part, the compounding quantity of component (b) is 0.5-15 weight part, and the compounding quantity of component (c). Is 0.5 to 5 parts by weight, the amount of component (d) is 0.05 to 5 parts by weight, the amount of component (e) is 0.001 to 5 parts by weight, and the amount of component (f) is 45 ~ 98.349 parts by weight, the amount of component (Q) is 0.5 to 15 parts by weight, the amount of component (R) is 0.05 to 5 parts by weight (provided that component (a) + component (b) Component (c) + component (d) + component (e) + component (f) + component (Q) + component (R) = 100 parts by weight) It is desirable to dry after application.

  Moreover, according to the preferable aspect of this invention, it is desirable to apply | coat the (S) deodorant composition to the fabric product surface in the foamed state, and to dry after that.

  According to a preferred embodiment of the present invention, it is desirable that (d) the photocatalyst is (d1) zinc oxide.

  According to the present invention, deodorant performance can be exhibited in a well-balanced manner with respect to aldehydes and ammonia by appropriately adjusting the components of the deodorant. Contact with the fibers of the fabric product can be avoided by adsorbing the photocatalyst in the pores of the porous body or using a deodorant in which the periphery of the photocatalyst is covered with an inorganic porous body. For this reason, since the damage of the fiber of a cloth product can be prevented, maintaining the performance of a photocatalyst, the fall of light fastness and deterioration of a cloth product fiber can be prevented. In particular, in the case of a rug such as a carpet or a mat, which is a fabric product to which the present invention can be effectively applied, it is possible to suppress the deterioration of the fibers due to walking by the photocatalyst.

    In addition, by uniformly fixing the deodorant composition to the surface of the fabric product by foaming, a lot of deodorizers can be present on the fiber surface that can capture malodors most efficiently, and adsorb malodors. Since it becomes easy to hit and light also hits easily, it becomes easy to express a photocatalytic effect.

    Furthermore, by performing deodorization processing in the same bath as an antifouling agent (for example, a fluororesin), durability of the fixing strength of the deodorant to the fabric fiber can be improved. Further, by performing the antifouling process and the deodorizing process at the same time, it is possible to perform the process without reducing the work efficiency. Furthermore, since the antifouling process and the deodorizing process are processes only on the surface of the fabric product, it is possible to save water necessary for application and heat necessary for drying.

  In addition, in preparing a deodorant that easily precipitates, it is not necessary to mix and apply precipitating substances in advance, but to stir efficiently by mixing and applying immediately before foaming through another route. Can suppress precipitation. Moreover, the fall of a texture can be suppressed by adjusting the quantity of an inorganic substance, maintaining deodorizing performance.

In general, fabric products are often exposed to sunlight, and discoloration is very noticeable when light fastness is low. Therefore, light fastness is a very important factor in fabric products.
Also, cloth products such as carpets and mats, which are rugs, are particularly expensive because they have a lot of additional contact with people walking, trolleys, casters, etc., unlike cloth products used on walls and ceilings. The durability of the fixing strength of the deodorant is required. Fabric products as rugs are easy to contact because most of the malodorous gas is heavier than air, so deodorization over a large area is possible by applying deodorization processing.
The deodorant cloth product of the present invention is suitable for processing into a cloth product because it can be deodorized without impairing light fastness and can impart high durability. Among them, fabric products as rugs such as carpets and mats are required to be most effectively applied because they require a higher deodorant durability.

  In addition, by applying in a foamed state, the deodorant can be uniformly fixed to the surface, and a large amount of the deodorant can be present on the fiber surface that can capture bad odor most efficiently. Moreover, since the fiber surface of the fabric product is not only easily exposed to bad odor but also easily hit with light, the photocatalytic effect is also easily exhibited. Durability can be improved by deodorizing in the same bath as an antifouling agent such as fluororesin. In addition, by applying deodorizing treatment at the same time as antifouling processing, it is possible to process without deteriorating work efficiency. Antifouling processing and deodorizing processing are processing only on the surface of fabric products, which is necessary for application. The amount of heat required for water and drying can be saved.

    Furthermore, the deodorant composition of the present invention has a deodorizing effect with a good balance against various bad odors such as aldehydes, trimethylamine, ammonia and the like, and a deodorant with reduced precipitates. The effect that the cloth product deodorized using the agent can be provided is exhibited.

  The deodorant cloth product according to the present invention comprises (a) a polymer containing an acid anhydride monomer unit having a weight average molecular weight of 5,000 to 1,000,000, (b) sulfite, (P) deodorant, (Q) fluorine containing c) water retention agent and / or (d) photocatalyst, (e) inorganic porous material and / or inorganic layered material, and (f) water (S) A deodorant composition comprising (R) a surfactant and a (S) deodorant composition is applied to the surface of a fabric product and then dried.

  Next, as the “polymer containing an acid anhydride monomer unit” as component (a), a copolymer preferably containing “an acid anhydride monomer unit” and “another monomer unit” Can be used. For example, examples of the copolymer include a copolymer of maleic anhydride and styrene, a copolymer of maleic anhydride and methyl vinyl ether, and the like.

  In a preferred example of the polymer containing an acid anhydride monomer unit, the quantitative ratio of “an acid anhydride monomer unit” to “another monomer unit” is “an acid anhydride monomer unit”. ":" Other monomer units "are preferably 1: 3 to 1: 1 by molar ratio and 1: 3 to 2: 1 by weight. Examples of the copolymer include a copolymer of maleic anhydride and styrene and a copolymer of maleic anhydride and methyl vinyl ether as described above. The polymer containing an acid anhydride monomer unit may have a weight average molecular weight of 5,000 to 1,000,000, preferably 5,000 to 800,000.

  Moreover, as a sulfite of a component (b), sodium sulfite, potassium sulfite, magnesium sulfite etc. are mentioned, for example.

  Component (b): Sulphite improves the deodorizing performance by making it hydrated. For this reason, deodorizing performance can be improved by mixing (c) water retention agent with a component (b).

  Moreover, the compound which shows water retention property, such as glycerin, a trehalose, a hyaluronic acid, celluloses, agar, a highly water-absorbing resin, can be used as a water retention agent of a component (c).

  The photocatalyst as the component (d) and the water retention agent as the component (c) in the present invention are used alone or in combination. The photocatalyst as the component (d) is, for example, excited by light such as ultraviolet rays or visible light, and oxidatively decomposes organic substances with a strong oxidizing power. This action exerts a deodorizing function. Although it does not specifically limit as a photocatalyst, For example, a titanium oxide, a zinc oxide, etc. are mentioned. Among these, titanium oxide and zinc oxide are preferable, and zinc oxide is more preferable. These may be subjected to visible light responsive photocatalytic treatment by doping impurities or introducing lattice defects.

  Further, when zinc oxide is used as the photocatalyst of component (d), the photocatalytic performance is specifically exhibited under a fluorescent lamp. By adding such a photocatalyst and irradiating light from a fluorescent lamp, the bad odor can be efficiently removed even in an indoor environment.

  In addition, since the photocatalyst as the component (d) has high reactivity, there is a possibility that the fiber deteriorates or decomposes when it is brought into contact with the fiber as the base material as it is. Therefore, by adding the inorganic porous material and / or the inorganic layered material as the component (e), the photocatalyst can be adsorbed in the pores of the porous material, or the periphery of the photocatalyst can be covered with the inorganic porous material. . Thereby, contact with the fiber of the fabric product can be avoided, and damage to the fiber of the fabric product can be prevented while maintaining the performance of the photocatalyst.

  Hydrotalcite, zeolite, activated carbon, silica gel, alumina, zirconium phosphate, diatomaceous earth, clay and the like can be used as the inorganic porous body and inorganic layered material of component (e). The inorganic porous material and the inorganic layered material are components that are not soluble in water.

  As the component (Q) fluorine-based resin, for example, Asahi Guard AG-850 (trade name) manufactured by Asahi Glass Co., Ltd. can be used.

  Moreover, by performing deodorization processing in the same bath as the antifouling agent, the durability of the fabric product can be improved by the (Q) fluorine-based resin that is the antifouling agent. Furthermore, by applying antifouling treatment and deodorizing treatment at the same time, it becomes possible to process without reducing work efficiency, and only the surface needs to be processed, so the water required for application and the amount of heat required for drying are reduced. Can save.

  As the surfactant of component (R), for example, Vixen F-320 (trade name) manufactured by Nikka Chemical Co., Ltd. can be used.

  A preferred combination of (P) deodorant in the present invention is component (a): a polymer containing an acid anhydride monomer unit, component (b): sulfite, component (c): water retention agent, It is desirable to contain a component (d): a photocatalyst, a component (e): an inorganic porous body and / or an inorganic layered material, and a component (f): water.

  In addition, the (S) deodorant composition in the present invention preferably contains (P) a deodorant and all of component (Q): fluororesin and component (R): surfactant.

  In this combination, the amount of component (a) is as follows: component (a), component (b), component (c), component (d), component (e), component (f), component (Q), and Preferably it is 0.05-5 weight part with respect to 100 weight part of total amounts with a component (R), More preferably, it is 0.5-4 weight part. If the ratio of the polymer containing the acid anhydride monomer unit exceeds the above range, the viscosity increases, and it becomes difficult to uniformly apply the deodorant.

  The amount of component (b) is as follows: component (a), component (b), component (c), component (d), component (e), component (f), component (Q), and component (R) ) And preferably 100 to 15 parts by weight, more preferably 1 to 12 parts by weight. If the ratio of sulfite is excessive, the performance of aldehyde deodorization is inferior. Moreover, when the ratio of a sulfite is too small, there exists a possibility that the deodorizing performance of an amine may be inferior.

  Moreover, the compounding quantity of a component (c) is the component (a), the component (b), the component (c), the component (d), the component (e), the component (f), the component (Q), and the component (R). ) And 100 parts by weight of the total amount, preferably 0.5 to 5 parts by weight, more preferably 0.7 to 3 parts by weight.

  The amount of component (d) is as follows: component (a), component (b), component (c), component (d), component (e), component (f), component (Q), and component (R) The total amount is 100 to 5 parts by weight, and preferably 0.05 to 5 parts by weight, more preferably 0.5 to 3 parts by weight.

  Moreover, the compounding quantity of a component (e) is the component (a), the component (b), the component (c), the component (d), the component (e), the component (f), the component (Q), and the component (R). The total amount is preferably 0.001 to 5 parts by weight, more preferably 0.005 to 1 part by weight with respect to 100 parts by weight in total. When the proportion of the component (e) is excessive, the occurrence of precipitation increases and the working efficiency decreases.

  Moreover, the compounding quantity of a component (f) is 100 weight part of total amounts with a component (a), a component (b), a component (c), a component (d), a component (e), and a component (f). , Preferably 45 to 98.349 parts by weight, more preferably 65 to 96.245 parts by weight.

  The amount of component (Q) is as follows: component (a), component (b), component (c), component (d), component (e), component (f), component (Q), and component (R) ) And 100 parts by weight of the total amount, preferably 0.5 to 15 parts by weight, more preferably 1 to 10 parts by weight. If the amount of the fluorine resin is small, not only the water and oil repellency performance is insufficient and the antifouling performance is lowered, but also the deodorant cannot be held on the fiber, and the deodorizing performance is also lowered.

  Furthermore, the compounding quantity of a component (R) is the component (a), the component (b), the component (c), the component (d), the component (e), the component (f), the component (Q), and the component (R). The total amount is 100 to 5 parts by weight, and preferably 0.05 to 5 parts by weight, more preferably 0.05 to 2 parts by weight.

  According to the present invention, on the surface of the cloth product, the component (S) is erased comprising the above-described component (P) deodorant, the component (Q) fluororesin, and the component (R) surfactant. A cloth product obtained by applying an odorous composition and then drying it can be provided.

  Examples of the cloth products include rugs, curtains, wallpaper, sofas, table cloths, and the like. In particular, tile carpets, roll carpets, plain woven carpets, needle punched carpets, automobile line mats, dust control mats, rugs, mats, and artificial turf can be listed as products for rugs. The fabric product as such a rug can be effectively applied with the present invention because fiber degradation due to walking may be promoted by a photocatalyst.

  The deodorant composition of component (S) is preferably applied to the surface of the fabric product in a foamed state and then dried. The foaming method is not particularly limited, but a method in which air is blown into an aqueous dispersion containing the deodorant composition and foamed is preferable. In this case, an apparatus such as Cannon B (manufactured by Nippon Canon Inc.) can be suitably used. Also, the foam coating method is not particularly limited, but a method of bringing the fiber surface into contact with the liquid surface of the foamed deodorant composition aqueous dispersion is desirable. By such a coating method, it can be uniformly fixed to the surface, and this makes it possible to have a lot of deodorant present on the fiber surface of the fabric product that can capture malodor most efficiently, and it is easy to adsorb malodor Become. Further, the surface of the fabric product is easily exposed to light and easily exhibits a photocatalytic effect.

  In the deodorizing cloth product of the present invention, the photocatalyst and a plurality of malodor removing deodorizers can be carried on the cloth product without using a binder. And the amine compound normally used for aldehyde deodorization is not used, but it is made into the water-soluble deodorant component almost completely.

  Moreover, by adjusting the amount of component (a), component (b), component (c), component (d) and component (e), deodorizing performance can be exerted in a well-balanced manner with respect to aldehydes and ammonia. . Furthermore, (d) providing deodorant cloth products with deodorizers fixed on the fiber surface that exhibit a wide range of performance against other malodors such as methyl mercaptan and hydrogen sulfide by adding zinc oxide as a photocatalyst (d1) it can. Further, by using a deodorant and a photocatalyst in combination, not only adsorption but also decomposition performance can be maintained and the deodorizing effect can be maintained.

  Moreover, in the (P) deodorant applied to the deodorant cloth product of the present invention, precipitates can be reduced. For this reason, there is little generation | occurrence | production of a precipitate in the process which makes a fabric product contain a deodorizer. As a result, re-stirring or the like becomes unnecessary. Therefore, working efficiency can be improved.

  As the (P) deodorant applied to the deodorant cloth product of the present invention, for example, 0.1 parts by weight of maleic anhydride-methyl vinyl ether copolymer (weight average molecular weight (Mw) is 5,000) is preferable. ~ 1,000,000 can be suitably used), sodium sulfite 0.15 parts by weight, zinc oxide 0.12 parts by weight, and other components such as hydrotalcite and glycerin. Prepare as follows. As a result, the deodorizing performance can be exhibited in a well-balanced manner with respect to aldehydes and ammonia. Furthermore, by adding zinc oxide as a photocatalyst, it was possible to obtain a deodorant cloth product that exhibits a wide range of performance against other malodors such as methyl mercaptan and hydrogen sulfide, as will be described later.

  Moreover, the deodorant which concerns on the deodorant cloth product of this invention has a property which is easy to adhere to a fiber even if it is water-soluble and does not use a binder.

  Next, the present invention will be described specifically by way of examples. Note that the present invention is not limited to the embodiments.

  First, the deodorizing components SA to SE contained in the deodorant sa1 according to the example will be described.

(Deodorant component SA)
A deodorizing component SA was prepared by adding 15 parts by weight of a styrene / maleic anhydride copolymer (SMA 1000) having a weight average molecular weight of 6,000 to 85 parts by weight of water heated to 70 ° C. with stirring.

(Deodorant component SB)
Deodorant component SB was prepared by dissolving 15 parts by weight of sodium sulfite (manufactured by Wako Pure Chemical Industries, Ltd.) in 85 parts by weight of water.

(Deodorant component SC)
Deodorizing component SC was prepared using 0.9 parts by weight (solid component) of glycerin.

(Photocatalyst LSQ)
Also, 40 parts by weight of ultrafine zinc oxide (manufactured by Wako Pure Chemical Industries, Ltd.) is added to water added with 1 part by weight of a dispersant (trade name Ultraxanthan V-7T) so that the total amount becomes 100 parts by weight. A photocatalyst dispersion was prepared while stirring vigorously with a homogenizer. The photocatalyst LSQ is a zinc oxide dispersion.

(Deodorant component SD)
Deodorant component SD was prepared using 0.08 part by weight (solid component) of hydrotalcite.

(Fluorine resin SQ)
Fluororesin SQ was prepared using 10.0 parts by weight of Asahi Guard AG-850 as an aqueous solution.

(Surfactant SR)
Surfactant SR was prepared using 1.0 part by weight of Vixen F-320 as an aqueous solution.

  The above-mentioned deodorant component SA, deodorant component SB, deodorant component SC, photocatalyst LSQ, deodorant component SD, water, fluororesin SQ, and surfactant SR listed in Table 1 below (parts by weight) The deodorant sa1 according to the example and the deodorizers sb1 and sb2 according to the comparative example were prepared.

(Deodorization performance evaluation)
Next, in order to evaluate the deodorizing performance of various malodorous gases, samples were prepared according to the following procedure. As samples, in addition to the deodorant cloth product according to Example 1, the deodorant cloth products according to Comparative Example 1 and Comparative Example 2 were prepared.

[Example 1]
The deodorant cloth product according to Example 1 was obtained by tufting a pile yarn made of nylon fibers onto a polyester nonwoven fabric as a raw cloth product base material so as to have a basis weight of 600 g / m ² . In addition, 0.75% o.o. w. f was applied. As the backing layer, PVC (polyvinyl chloride) was used to obtain a tile carpet. As the deodorant, the deodorant sa1 shown in Table 1 was used.

[Comparative Example 1]
The deodorant cloth product according to Comparative Example 1 was obtained by tufting a pile yarn made of nylon fibers onto a polyester nonwoven fabric as a raw cloth product base material so as to have a basis weight of 650 g / m ² . In addition, 0.75% o.o. w. f was applied. Tile carpet was obtained using PVC as the backing layer. As the deodorant, the deodorant sb1 shown in Table 1 was used.

[Comparative Example 2]
The deodorant cloth product according to Comparative Example 2 was a non-processed cloth product base material in which a pile yarn made of nylon fibers was footed on a polyester nonwoven fabric so as to have a basis weight of 600 g / m ² . In addition, 0.75% o.o. w. f was applied. Tile carpet was obtained using PVC as the backing layer. As the deodorant, the deodorant sb2 shown in Table 1 was used.
(Comparative Example 3)
The deodorant cloth product according to Comparative Example 3 was obtained by footing pile yarn made of nylon fibers onto a polyester nonwoven fabric as a base material so as to have a basis weight of 600 g / m ² . In addition, 0.75% o.o. w. f was applied. Tile carpet was obtained using PVC as the backing layer. As the deodorant, EFNICA K-50 (trade name) manufactured by Nanjo EFNICA Co., Ltd. was used. EFNICA K-50 contains ethylenediaminetetraacetic acid as a deodorizing component having an amino group.

(1) Formaldehyde deodorizing performance Of various malodorous gases, a method for evaluating the deodorizing performance of formaldehyde will be described.
For the above-mentioned Example 1, Comparative Example 1 and Comparative Example 2, when a test piece (10 cm × 20 cm square) was put in a 3 liter bag and formaldehyde was injected into the bag with a target of 20 ppm, the initial concentration was It became 16.7 ppm. For this sample, measure the remaining concentration of formaldehyde gas after 0.5 hours, and calculate the total amount of each test piece that adsorbs and removes formaldehyde from this measured value. From this, the deodorization rate (%) of formaldehyde gas is calculated. did.

(2) Acetaldehyde deodorizing performance Next, a method for evaluating the deodorizing performance of acetaldehyde will be described.
For Example 1, Comparative Example 1 and Comparative Example 2 described above, a test piece (20 cm square) was placed in a 3 liter bag, and acetaldehyde was injected into the bag with a target of 20 ppm. It became 7 ppm. For this sample, the residual concentration after 22 hours under fluorescent lamp (6000 Lx) irradiation was measured, and the total amount that each test piece adsorbed and removed formaldehyde was calculated from this measured value. From this, the deodorization rate (%) of acetaldehyde gas was calculated. ) Was calculated.

(3) Ammonia deodorization performance Next, a method for evaluating the deodorization performance of ammonia will be described.
About Example 1 and Comparative Example 1 and Comparative Example 2 described above, when a test piece (10 cm × 20 cm square) was placed in a 3 liter bag and ammonia was injected into the bag with a target of 200 ppm, the initial concentration was It became 200 ppm. With respect to this sample, the residual concentration after 4 hours was measured, and from this measured value, the total amount by which each test piece adsorbed and removed ammonia was calculated, and from this, the deodorization rate (%) of ammonia gas was calculated.

(4) Trimethylamine deodorization performance Next, a method for evaluating the deodorization performance of trimethylamine will be described.
For Example 1, Comparative Example 1 and Comparative Example 2 described above, a test piece (20 cm square) was placed in a 3 liter bag, and when trimethylamine was injected into the bag with a target of 40 ppm, the initial concentration was 37 ppm. became. For this sample, the residual concentration after 4 hours was measured, and from this measured value, the total amount of each test piece adsorbed and removed trimethylamine was calculated, and from this the deodorization rate (%) of trimethylamine was calculated.

(5) Hydrogen sulfide deodorization performance Next, a method for evaluating the deodorization performance of hydrogen sulfide will be described.
For Example 1, Comparative Example 1, and Comparative Example 2 described above, a test piece (10 cm × 20 cm square) was placed in a 3 liter bag, and hydrogen sulfide was injected into the bag with a target of 20 ppm. Became 21 ppm. For this sample, the residual concentration after 4 hours was measured, and from this measured value, the total amount by which each test piece adsorbed and removed hydrogen sulfide was calculated, and from this, the deodorization rate (%) of hydrogen sulfide gas was calculated.

(6) Methyl mercaptan deodorizing performance Next, a method for evaluating the deodorizing performance of methyl mercaptan will be described.
For Example 1, Comparative Example 1 and Comparative Example 2 described above, a test piece (20 cm square) was placed in a 3 liter bag, and methyl mercaptan was injected into the bag with a target of 20 ppm. It became .7ppm. For this sample, the residual concentration after 22 hours under fluorescent lamp (6000 Lx) irradiation was measured, and the total amount that each test piece adsorbed and removed methyl mercaptan was calculated from the measured value. From this, the deodorization rate of methyl mercaptan gas was calculated. (%) Was calculated.

(7) Acetic acid deodorizing performance Next, a method for evaluating the deodorizing performance of acetic acid will be described.
For Example 1, Comparative Example 1 and Comparative Example 2 described above, a test piece (10 cm square) was placed in a 3 liter bag, and when acetic acid was injected into the bag with a target of 40 ppm, the initial concentration was 42 ppm. became. About this sample, the residual density | concentration after 0.5 hour was measured, the total amount which each test piece adsorbed and removed the acetic acid from this measured value was computed, and the deodorizing rate (%) of acetic acid gas was computed from this.

(8) Isovaleric acid deodorizing performance Next, a method for evaluating the deodorizing performance of isovaleric acid will be described.
For Example 1, Comparative Example 1 and Comparative Example 2 described above, a test piece (10 cm square) was placed in a 3 liter bag and isovaleric acid was injected into the bag with a target of 40 ppm. It became 38 ppm. For this sample, the residual concentration after 2 hours was measured, and from this measured value, the total amount by which each test piece adsorbed and removed isovaleric acid was calculated. From this, the deodorization rate (%) of isovaleric acid gas was calculated. .

Table 2 shows the results of the deodorizing performance evaluation test for each of the above malodorous gases. As can be seen from Table 2, the deodorant cloth product according to Example 1 exhibits higher deodorizing performance than any of Comparative Examples 1 and 2 for any offensive odor gas.
Here, the deodorization rate (%) was calculated by the following equation (1).
{([G] _0- [G]) / [G] ₀ } × 100 (1)
However,
[G] ₀ : Initial malodorous gas concentration (initial concentration)
[G]: Residual concentration of malodorous gas after a predetermined time The deodorization rate indicates the rate of malodor reduction with respect to the initial concentration. The larger the value of the deodorization rate (unit:%), the greater the deodorizing effect.

  In addition, since the fabric product has a large surface area, physical adsorption occurs even in an unprocessed fabric product, and apparently has a deodorizing effect. When Comparative Example 1 and Example 1 are compared, there is a difference in the deodorizing ability despite the same standard, and the effect of the deodorizing process appears. Moreover, an effect is larger than the comparative example 2, and it turns out that the deodorizing processed fabric product which concerns on Example 1 exhibits deodorizing performance with sufficient balance with respect to various bad odors.

(Fastness evaluation)
Next, the robustness evaluation will be described.
It is known that a deodorant having an amino group can obtain a high effect for deodorizing formaldehyde. However, amino groups have been difficult to use in fabric products because they reduce the light fastness of dyed fabric products. Further, among the deodorizing substances, the photocatalyst is effective for many gases, but it sometimes decomposes and damages fibers such as carpet pile and fluororesin.

  Therefore, using the deodorant cloth products according to Example 1, Comparative Example 1 and Comparative Example 3, the following tests were conducted to examine the influence of the deodorant and the photocatalyst on the cloth products.

(1) Light fastness The test was conducted according to the dyeing fastness test method for carbon arc lamp light of JIS L 0842. That is, after irradiating for a predetermined time with a fade meter (63 ° C.), the degree of discoloration was compared and judged on a blue scale.

(2) Friction fastness A test was conducted according to JIS L 0849II method. Specifically, a cotton white cloth is attached to the tip of the friction element, and the cloth product 10 cm fixed on the testing machine is rubbed 100 times back and forth with a constant load, and the degree of adhesion of the color transferred to cotton Was compared with the gray scale for contamination. In the drying test, the white cotton cloth was rubbed in a dry state, and in the wet test, the white cotton cloth was rubbed with the same weight of water.

(3) Fastness to washing A test was conducted in accordance with JIS L 0844, a test method for fastness to dyeing for washing. Put a cloth product in which a white cloth (nylon, cotton) is sewed in a cylindrical container with an inner diameter of about 55 mm and a volume of about 550 mL, 50 ° C / 100 cc soapy water and a hard stainless steel ball, and then turn the cover with a lid and seal it. Exercise was applied for 30 minutes, and the color transition to nylon (labeled NY in the table below) and cotton and the color change of fabric products were compared and judged.

Table 3 shows the results of the fastness evaluation test. As can be seen from Table 3, the light fastness of Comparative Example 23 is significantly reduced, whereas Example 1 is not different from Comparative Example 1 that is not processed, and no deterioration due to the photocatalytic effect is observed. Further, the fastness other than the light fastness is not lowered, and it is considered that the influence of the deodorant is small.
From the above, it can be seen that the photocatalyst does not directly touch the pile portion.

The deodorant cloth product according to the present embodiment has the following effects.
(1) By blending a deodorant, it becomes possible to deodorize malodor with a good balance.
A deodorizing substance that has a deodorizing effect in a single liquid in a wide range of gases such as aldehydes and alkaline compounds has not been developed at present. In addition, it is known that deodorizers with amino groups can be highly effective for deodorizing formaldehyde, but amino groups reduce the light fastness of fabric products and are difficult to use for fabric products. there were.
On the other hand, deodorizing performance can be exhibited in a well-balanced manner with respect to aldehydes, ammonia and the like by adjusting the deodorant as in the deodorant cloth product according to the present embodiment.

(2) Since the photocatalyst does not directly touch the base material (base material), there is no base material destruction.
Among the deodorizing substances, photocatalysts are effective for many gases, but there is a risk of decomposing and damaging fabric fibers and fluororesins.
On the other hand, contact with the fibers of the fabric product can be avoided by adsorbing the photocatalyst in the pores of the porous body or using a deodorant in which the photocatalyst is covered with an inorganic porous body. For this reason, since the damage of the fiber of a textile product can be prevented, maintaining the performance of a photocatalyst, the fall of fastness and the deterioration of a fiber can be prevented.

(3) By applying the deodorizing process in a foamed state in the same bath as the antifouling process, the deodorant can be efficiently applied to the surface of the fabric product.
Processing with deodorizing agents such as dipping, spraying or coating increases drying time and lowers work efficiency. Carpets and mats also adhere to the base of the pile and the fabric. The deodorizing effect commensurate with the amount applied does not come out. In addition, if the fiber surface is fixed with only the deodorant, the fixing strength is low, so that the deodorant may drop off and the deodorizing effect may not be maintained.
On the other hand, by applying it in a foamed state and fixing it uniformly on the surface, it is possible to have a lot of deodorant on the fiber surface that can capture bad odor most efficiently, and it is easy to absorb bad odor. . Moreover, it is easy to hit light and the photocatalytic effect is also easy to express. By processing in the same bath as an antifouling agent such as a fluororesin, it is possible to improve the durability of the fixing strength of the deodorant to the fiber of the fabric product. By applying a deodorizing process at the same time as the antifouling agent process, it is possible to process without lowering the work efficiency, and since only the surface is processed, it is possible to save the water required for application and the heat required for drying.

(4) Precipitation prevention When a large amount of inorganic deodorant is used, the texture of the fabric product is lowered, and when the amount is small, the deodorizing performance becomes insufficient. Therefore, the amount of inorganic substances must be kept appropriate. . Since the water-absorbing porous inorganic substance and activated carbon are likely to precipitate in the aqueous dispersion, it is necessary to reduce the fluctuation in the amount of the inorganic substance in the aqueous dispersion due to precipitation. For this reason, in the processing step of applying a deodorant to the fabric product, re-stirring is required when precipitates are generated. When re-stirring is performed, working efficiency may be reduced due to bubbles caused by re-stirring.
In contrast, the amount of deodorant that easily settles is adjusted. Rather than pre-mixing the precipitating material, it is mixed immediately before foaming through another route, eliminating the need for re-stirring and making bubbles by the most agitation. Generation and precipitation were suppressed.
By setting it as such a process, it became possible to adjust appropriately the quantity of the inorganic substance in a water dispersion liquid, and was able to obtain the fabric product which a texture does not fall, maintaining a deodorizing performance.

As described above, the deodorizing cloth product according to the present invention uses a deodorizing agent that has a balanced deodorizing effect in a single solution against various odors such as aldehydes and alkaline compounds, and has reduced precipitates. Thus, it is processed without lowering the work efficiency, and is particularly useful when durability against light fastness and deodorant fixing strength is required.

Claims (4)

(A) a polymer containing an acid anhydride monomer unit having a weight average molecular weight of 5,000 to 1,000,000;
(B) sulfite,
(C) a water retention agent and / or (d) a photocatalyst;
(E) an inorganic porous material and / or an inorganic layered material;
(F) water and
(P) deodorant comprising
(Q) A deodorant fabric product, which is formed by applying a (S) deodorant composition comprising (F) a fluororesin and (R) a surfactant to the surface of the fabric product and then drying. The compounding amount of component (a) is 0.05 to 5 parts by weight,
The amount of component (b) is 0.5 to 15 parts by weight,
The amount of component (c) is 0.5 to 5 parts by weight,
The amount of component (d) is 0.05 to 5 parts by weight,
The amount of component (e) is 0.001 to 5 parts by weight,
The amount of component (f) is 45 to 98.349 parts by weight,
The amount of component (Q) is 0.5 to 15 parts by weight,
Component (R) is added in an amount of 0.05 to 5 parts by weight (provided that component (a) + component (b) + component (c) + component (d) + component (e) + component (f) + component ( The deodorant cloth product according to claim 1, wherein (S) deodorant composition of Q) + component (R) = 100 parts by weight) is applied to the surface of the cloth product and then dried.   The deodorant cloth product according to claim 1 or 2, wherein the component (S) deodorant composition is applied to the surface of the cloth product in a foamed state and then dried.   The deodorant cloth product according to claim 1, wherein the component (d) photocatalyst is (d1) zinc oxide.