KR20020079745A - Aldehyde deodorizer composition - Google Patents

Abstract

An object of the present invention is to provide an aldehyde deodorant composition which efficiently removes aldehydes such as acetaldehyde, formaldehyde and the like which are odor components and are likely to affect health. The aldehyde deodorant composition of the present invention is at least one selected from (A) hydrazides, azoles and azines, and (B) at least one selected from halides, acetates, sulfates, sulfites and hydroxides of metals. Characterized in that the active ingredient.

Description

Aldehyde Deodorant Composition {ALDEHYDE DEODORIZER COMPOSITION}

In recent years, building materials containing chemicals such as formaldehyde have been used in new houses. In addition, these chemicals are vaporized and dispersed in large quantities, causing problems such as so-called indoor air pollution syndrome.

However, formaldehyde is used in various thermosetting resins, adhesives, and flavoring agents and the like, and is formulated as an effective ingredient that is inexpensive and highly effective and difficult to replace. Therefore, it is practically difficult to use them.

In view of the above circumstances, various aldehyde deodorants have been proposed to remove aldehydes efficiently after the fact. Among them, aldehyde deodorants including N-N bonds such as hydrazides, azoles and azines have a high aldehyde deodorizing effect and their adoption is widening.

Such an aldehyde deodorant is used for wallpaper, resin, or the like, or by spraying and treating a treated material such as plywood, for example, plywood to remove formaldehyde generated from plywood, and then formaldehyde and the like. It is used as a processing agent for making plywood which does not generate | occur | produce.

However, the aldehyde deodorant alone is not sufficient to deodorize the effect, and further improved functions are required.

[Summary of invention]

Since the present invention is a combination system of (A) hydrazides, azoles and azines with various compounds, at least one selected from (B) metal halides, nitrates, sulfates, sulfites and hydroxides has been tested several times. The present invention has been completed by finding that the deodorizing effect is remarkably improved by including the kind.

The present invention relates to a composition comprising at least one of (A) hydrazides, azoles, and azines, and (B) at least one selected from metal halides, acetates, sulfates, sulfites, and hydroxides as an active ingredient. will be.

The present invention relates to a composition comprising at least one of (A) hydrazides, azoles, and azines, and (B) at least one selected from metal halides, acetates, sulfates, sulfites, and oxalates as an active ingredient. will be.

The present invention is effective for at least one of (A) hydrazides, azoles and azines, and at least one of (B) metal halides, that is, metal fluorides, metal chlorides, metal bromide and metal iodides The present invention relates to an aldehyde deodorant composition as a component.

It is preferable to use calcium chloride as said (B) composition.

The present invention relates to an aldehyde deodorant composition in which at least one selected from (C) pearlite, zeolite, silica gel, activated carbon, urea, ferrous sulfate and L-ascorbin is added as an active ingredient.

The present invention relates to an aldehyde deodorant composition. More specifically, the present invention relates to an aldehyde deodorant composition that effectively removes aldehydes such as acetaldehyde and formaldehyde, which are also associated with human health problems, as odor components.

In the aldehyde deodorant composition of the present invention, at least one selected from (A) hydrazides, azoles and azines ((A) component in the present invention) is used as an active ingredient.

Hydrazides are, for example, monohydrazide compounds having one hydrazide group in a molecule, dihydrazide compounds having two hydrazide groups in a molecule, and poly having three or more hydrazide groups in a molecule. A hydrazide compound etc. are mentioned.

As a specific example of the monohydrazide compound, a general formula

(1): R-Co-NHNH ₂ (1)

[Wherein, R represents an aryl group which may have a hydrogen atom, an alkyl group or a substituent thereof.]

The monohydrazide compound shown by these is mentioned.

In said general formula (1), as an alkyl group shown by R, for example, a methyl group, an ethyl group, n-propyl group, n-butyl group, n-pentyl group, n-hexyl group, n-heptyl group, n A linear alkyl group having 1 to 12 carbon atoms such as an octyl group, an n-nonyl group, an n-decyl group and an n-undecyl group. Examples of the allyl group include a phenyl group, a biphenyl group and a naphthyl group. Among these, a phenyl group is preferable. Substituents of the aryl group include, for example, halogen atoms such as hydroxyl group, fluorine, chlorine and bromine, methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, tert-butyl group and iso-butyl group C1-C4 linear or branched alkyl groups, etc. are mentioned.

The hydrazide compound of the general formula (1) is more specifically, lauryl acid hydrazide, salicylic acid hydrazide, form hydrazide, acethydrazide, propionic acid hydrazide, p-hydroxybenzoic acid hydra Zide, naphthoic acid hydrazide, 3-hydroxy-2-naphthoic acid hydrazide, etc. are mentioned.

As a specific example of the dihydrazide compound, a general formula

H ₂ NHN-X-NHNH ₂ (2)

[Wherein X represents group-CO- or group-CO-A-CO-. A represents an alkylene group or an arylene group.]

The dihydrazide compound shown by these is mentioned.

In the general formula (2), the alkylene group represented by A is, for example, a methylene group, an ethylene group, trimethylene group, tetramethylene group, pentamethylene group, hexamethylene group, heptamethylene group, octamethylene group, or nona C1-C12 linear alkylene groups, such as a methylene group, a decamethylene group, and an undecamethylene group, are mentioned. As a substituent of an alkylene group, a hydroxyl group etc. are mentioned. Examples of the aryl group include phenylene group, biphenylene group, naphthylene group, anthylene group, and phenanthryl group. Among these, a phenylene group, a naphthylene group, etc. are preferable. As a substituent of an arylene group, the thing similar to the substituent of the said aryl group is mentioned.

Specific examples of the dihydrazide compound of the general formula (2) include carbohydrazide, dihydrazide hydroxide, maronic hydrazide, succinic acid hydrazide and adipic acid dihydrazide. , Azelaic acid dihydrazide, sebacic acid dihydrazide, dodecane-2 dihydrazide, maleic acid dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydra Dibasic acid dehydrazide such as zide, malic acid dihydrazide, isophthalic acid dihydrazide, telephthalic acid dihydrazide, dimeric acid dihydrazide, and 2,6-naphthoic acid dihydrazide, etc. Can be mentioned. Various dibasic acid dihydrazide compounds, 2,4-dihydrazide-6-methylamino-sym-triazine, etc. described in Japanese Patent Application Laid-open No. Hei 2-4607 can also be used as the dihydrazide of the present invention. Can be.

As a polyhydrazide compound, polyacrylic acid hydrazide etc. are mentioned, for example.

Among these, a dihydrazide compound is preferable, dibasic dihydrazide is more preferable, and sebacic acid dihydrazide and adipic acid dihydrazide are more preferable.

The said hydrazide compound can be used individually by 1 type or in mixture of 2 or more types.

As the azoles and azines, widely known five- to six-membered heterocyclic compounds having two or three nitrogen atoms as binary atoms in the molecule and having at least two of the nitrogen atoms in close proximity (with NN bonds) are widely used. It is possible to use.

The heterocyclic compound includes a linear or branched alkyl group having 1 to 4 carbon atoms, an aryl group having one or two or more substituents, a hydroxyl group, an amino group, an alkylamino group, a dialkylamino group, an arylamino group, a diarylamino, a melcapto group, One or two or more substituents such as an ester group, a carboxyl group, a benzotriazolyl group, and a 1-hydroxybenzotriazolyl group may be substituted.

Here, examples of the linear or branched alkyl group having about 1 to 4 carbon atoms include methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl and tert-butyl. Moreover, as an aryl group, a phenyl, a biphenyl group, a naphthyl group is mentioned, for example. These groups may be substituted by one, two or more substituents, such as a hydroxyl group, a halogen atom, a sulfonic acid group, a C1-C4 linear or branched alkyl group. When a carboxyl group is included as a substituent, these ester is also contained in the active ingredient of this invention.

Examples of the azoles include diazoles, triazoles, thiadiazoles and tetrazole, and the like, and diazoles and triazoles can be preferably used.

Diazoles are 3-methyl-5-pyrazolone, 1, 3-dimethyl-5-pyrazolone, 3-methyl-1-phenyl-5-pyrazolone, 3-phenyl-6-pyrazolone and 3-methyl-1 Pyrazolones such as-(3-sulfophenyl) -5-pyrazolone, and pyrazole, 3-methylpyrazole, 1, 4-dimethylpyrazole, 3, 5-dimethylpyrazole, 3, 5-dimethyl- 1-phenylpyrazole, 3-aminopyrazole, 5-amino-3-methylpyrazole, 3-methylpyrazole-5-carboxylic acid, 3-methylpyrazole-5-carboxylic acid methyl ester, 3-methylpyra Pyrazoles, such as sol-5-carboxylic acid ethyl ester and 3, 5-methylpyrazole dicarboxylic acid, etc. are mentioned.

Specific examples of triazoles include 1, 2, 3-triazole, 1, 2, 4-triazole, 3-n-butyl-1, 2, 4-triazole, 3, 5-dimethyl-1, 2 , 4-triazole, 3, 5-di-n-butyl-1, 2, 4-triazole, 3-melcapto-1, 2, 4-triazole, 3-amino-1, 2, 4-tria Sol, 4-amino-1, 2, 4-triazole, 3, 5-diamino-1, 2, 4-triazole, 5-amino-3-melcapto-1, 2, 4-triazole, 3 -Amino-5-phenyl-1, 2, 4-triazole, 3, 5-diphenyl-1, 2, 4-triazole, 1, 2, 4-triazole-3-ON, dnazole (3, 5-dioxy-1, 2, 4-triazole), 1, 2, 4-triazole-3-carboxylic acid, 1-hydroxybenzotriazole, 5-hydroxy-7-methyl-1, 3, 8-triazindolizin, 1H-benzotriazole, 4-methyl-1H-benzotriazole and 5-methyl-1H-benzotriazole and the like.

Examples of the azines include diazines, triazines, pyridazines, and the like, and pyridazines can be preferably used.

Specific examples of pyridazines include 6-methyl-8-hydroxy triazolo pyridazine, 4,5-dichloro-3-pyridazine, maleic acid hydrazide, 6-methyl-3-pyridazone, and the like. Can be.

Among these, azoles are preferable, triazoles, such as 1, 2, 4-triazole, 1, 2, 3-triazole, pyrazoles, such as 3, 5- dimethyl pyrazole, and 3-methyl-5- More preferred are pyrazolone copper pyrazolones.

In this invention, an azole and azine can be used individually by 1 type, or can use 2 or more types together.

(B) At least one selected from metal halides, acetates, sulfates, sulfites, and hydroxides (component (B) in this specification), when used alone, does not have or have a deodorizing ability of aldehydes. By using together with a component, it has an effect which expresses the deodorizing ability of the aldehydes which (A) component has further.

Examples of metal halides include metal fluorides, metal chlorides, metal bromide, and metal iodides.

Examples of the metal fluoride include antimony fluoride, potassium fluoride, silver fluoride, tin fluoride, and vanadium fluoride.

Metal chlorides are alkaline earth metal chlorides such as calcium chloride, magnesium chloride, potassium magnesium chloride, barium chloride, strontium chloride, zinc chloride, antimony chloride, aluminum chloride, cerium chloride, titanium chloride, manganese chloride, lithium chloride, tungsten chloride, etc. Can be mentioned.

Examples of the metal bromide include alkaline earth metal bromide such as calcium bromide, magnesium bromide, strontium bromide, barium bromide, zinc bromide, aluminum bromide, nickel bromide, lithium bromide, tungsten bromide and the like.

Examples of the metal iodide include alkaline earth metal iodides such as calcium iodide, strontium iodide, barium iodide, magnesium iodide, manganese iodide, aluminum iodide, cerium iodide, silver iodide, lithium iodide, and cobalt iodide.

Examples of the metal acetates include aluminum acetate, calcium acetate, magnesium acetate, and sodium acetate.

Examples of the metal sulfate include sodium sulfate, magnesium sulfate, antimony sulfate, potassium sulfate, titanium sulfate, manganese sulfate, calcium sulfate, and titanium sulfate.

Examples of the metal sulfite include sodium sulfite, potassium sulfite, calcium sulfite, magnesium sulfite, aluminum sulfite, zinc sulfite, sodium hydrogen sulfite, potassium hydrogen sulfite and the like.

When the metal sulfite is used, the object is colored, and when it is not preferable to color the object, at least one selected from metal halides, acetates, sulfates, and hydroxides is used as the composition (B). More preferred.

Examples of the metal hydroxides include sodium hydroxide, potassium hydroxide and strontium hydroxide.

Of these, metal halides are preferred, more preferably alkaline earth metal chlorides, and most preferably calcium chloride is used.

As a usage ratio of (B) component with respect to (A) component of this invention, the range of (A) component: (B) component = 1: 5-100: 1 (weight ratio) can be illustrated.

In the aldehyde deodorant composition of the present invention, other known aldehyde deodorants (e.g., a combination of perlite, zeolite, silica gel, activated carbon, urea, ferrous sulfate and L-ascorbic acid), so long as the effect is not impaired. Etc.) can be added.

Deodorant compositions of the present invention are generally used in powder, solution, emulsion form.

The powder of the aldehyde deodorant composition of the present invention can be used in the same manner as a general powder, and can be used as it is as a deodorant and mixed with the material to be treated.

The powder of the aldehyde deodorant composition of the present invention may be used by dissolving it in a suitable organic solvent or a solvent such as water and then applying, impregnating or mixing the processing agent. In this regard, a known organic solvent can be used. For example, linear or branched aliphatic saturated alcohols having about 1 to 8 carbon atoms, alicyclic alcohols such as cyclopentanol and cyclohexanol, and polyhydric alcohols such as ethylene glycol Cyclic such as dialkyl ethers, diallyl ethers, tetrahydrofuran, dioxane and the like, linear or branched or aliphatic hydrocarbons having 1 to 8 carbon atoms, and alkyl moieties being linear or branched alkyl having 1 to 8 carbon atoms. Nitriles such as ethers, ketones, esters, acetonitrile, polar media such as dimethylformamide and dimethyl sulfoxide, phosphate esters, and two or more mixed solvents thereof. In addition, an appropriate amount of water may be added to the organic solvent. When preparing in the form of an organic solvent solution, the active ingredient concentration is not limited, and may be appropriately selected in a wide range depending on the use of the resulting solution. % To 80% by weight, preferably 0.5% to 60% by weight is good.

The emulsion of the aldehyde deodorant composition of the present invention can also be produced by mixing the powder of the composition of the present invention with water and an appropriate amount, for example, according to a known method. And it is also possible to use it in the form of a odorable resin emulsion by mixing this emulsion and resin emulsion. Examples of the resin emulsions include vinyl acetate polymer emulsions, ethylene vinyl acetate polymer emulsions, vinyl acetate versatate copolymer emulsions, ethylene vinyl acetate vinyl chloride copolymer emulsions, ethylene vinyl acetate acrylic ester copolymer emulsions, acrylamides, N Acrylamide-based vinyl acetate copolymer emulsions, α-olepin maleic anhydride-based vinyl acetate copolymer emulsions, acrylic ester polymer emulsions, acrylic ester styrene copolymer emulsions, vinyl chloride polymer emulsions, urethanes Aqueous resin emulsions prepared by emulsion polymerization, solution polymerization, etc. of polymer emulsions, silicone polymer emulsions, epoxy polymer emulsions, and the like, and aqueous solutions such as latex, TENFU, and foam, such as SBR, NBR, NR, SR, CR, and methyl methacrylate. A polymer solution is mentioned. Moreover, resin using the said emulsion, latex, for example, an aqueous polymer-isocyanate type resin, (alpha)-olefin resin, etc. are mentioned. The usage-amount of the active ingredient at the time of manufacturing a odorable resin emulsion is not specifically limited, It can select suitably in a wide range. For example, the total amount of the two components (A) and (B) can be appropriately adjusted so as to be about 0.1-30 parts by weight, preferably about 0.5-20 parts by weight, based on 100 parts by weight of the solid content of the resin emulsion. .

The powder of the aldehyde deodorant composition of the present invention or the one prepared in the form of a solution or dispersion of the powder can be mixed with a suitable synthetic resin to form a deodorant resin composition. The synthetic resin is not particularly limited and may be known, for example, polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetacetylated polyvinyl alcohol, ABS resin, chloride Thermoplastic resins such as vinylidene resin, vinyl acetate resin, polyamide, polyacetal, polycarbonate, modified polyphenylene ether, polysulfone, polyphenylene sulfide, SBR resin, NBR resin, NR resin, SR resin, CR resin, Rubber-based resins such as methacrylic acid butyl resin, epoxy resin, xylene resin, ganamine resin, diarylphthalei resin, vinyl ester resin, phenol resin, unsaturated polyester resin, furan resin, polyimide, polyurethane, maleic acid Thermosetting resins, such as resin, a melamine resin, and free fish resin, etc. are mentioned. Among these, as the thermoplastic resin, polyvinyl chloride, polyolefin (polyethylene, polypropylene, etc.), methacrylic resin, polyvinyl alcohol, acetacetylated polyvinyl alcohol, ABS resin, etc. are preferable, and polyvinyl chloride, polyolefin And the like are particularly preferred. Moreover, as a thermosetting resin, a phenol resin, a free fish resin, a melamine resin, a polyester resin, an epoxy resin, a caseo resin, a polyurethane, etc. are preferable, for example, an epoxy resin, a polyurethane, etc. are preferable.

In the deodorizing resin composition of the present invention, the blending amount of the active ingredient is not particularly limited and can be appropriately selected in a wide range. For example, the total amount of the two components (A) and (B) may be about 0.1-30 parts by weight, preferably about 0.5-20 parts by weight, based on 100 parts by weight of the synthetic resin.

As a specific use of the aldehyde deodorant composition of the present invention used in the form of a solution, for example, wood (mainly building materials such as plywood, fiber boards and decorative plates), paper, fibers, textile products, treatment agents such as resin molded products, etc. Can be mentioned. What is necessary is just to apply | coat or impregnate the powder solution or dispersion liquid of the composition of this invention, when processing to paper, a fiber, a resin molded article (for example, a film and a sheet). For example, the nonwoven fabric is useful as an air filter for an air conditioner and an air cleaner.

As a specific use of the aldehyde deodorant composition of the present invention used in the form of an emulsion, for example, adhesives, papers (paper, wallpaper, etc.), fibers, wood (mainly building materials such as plywood and decorative plates, fiberboards), resin molded articles And surface treatment agents (mainly films and sheets), additives to synthetic resins, and the like. The adhesive is an emulsion of the aldehyde deodorant composition of the present invention in a resin emulsion (especially a vinyl acetate resin emulsion, an acrylic resin emulsion, a styrene butadiene copolymer emulsion, etc.) and an aqueous polymer (especially starch aqueous solution and foaming aqueous solution). It can be manufactured by addition mixing. In use, essential components such as a crosslinking agent and a curing agent suitable for each adhesive, and extenders, rust inhibitors, fillers and the like are used. Treatment with fibers, paper, wood, resin molded articles and the like is carried out by applying and impregnating an emulsion of the aldehyde deodorant composition of the present invention. And it can be used as a coating material by adding and mixing the pigment and the emulsion of the aldehyde deodorant composition of this invention to resin emulsion (especially vinyl acetate resin emulsion, acrylic resin emulsion, and rubber latex).

The present invention will be described in more detail with reference to Examples, Comparative Examples and Test Examples. In addition, the part called [part] means a weight part.

Example 1

5 parts of adipic acid dihydrazide (ADH) and 4 parts of calcium chloride were added to 91 parts of distilled water, and it stirred sufficiently, and prepared the aldehyde deodorant composition of Example 1.

Example 2

5 parts of adipic acid dihydrazide (ADH) and 4 parts of sodium hydroxide were added to 91 parts of distilled water, and it stirred sufficiently, and prepared the aldehyde deodorant composition of Example 2.

Example 3

5 parts of adipic acid dihydrazide (ADH) and 4 parts of sodium sulfate were added to 91 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of Example 3.

Example 4

5 parts of adipic acid dihydrazide (ADH) and 4 parts of magnesium sulfate were added to 91 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of Example 4.

Example 5

10 parts of adipic acid dihydrazide (ADH) and 10 parts of calcium chloride were added to 80 parts of distilled water, and it stirred sufficiently, and prepared the aldehyde deodorant composition of Example 5.

Example 6

2 parts of carbo hydrazide and 8 parts of calcium chloride were added to 90 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of Example 6.

Example 7

4 parts of adipic acid dihydrazide (ADH), 2 parts of calcium chloride, and 4 parts of urea were added to 90 parts of distilled water, and it stirred sufficiently, and prepared the aldehyde deodorant composition of Example 7.

Example 8

5 parts of adipic acid dihydrazide (ADH) and 10 parts of sodium sulfite were added to 85 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of Example 8.

Example 9

3 parts of adipic acid dihydrazide (ADH) and 2 parts of calcium chloride were added to 95 parts of vinyl acetate emulsions (45% of distillation residues), and it fully stirred, and prepared the aldehyde deodorant composition of Example 9.

Example 10

Twenty parts of titanium oxide was added to 100 parts of the composition of Example 9, and the mixture was sufficiently stirred to prepare an aldehyde deodorant composition of Example 10.

Comparative Example 1

5 parts of adipic acid dihydrazide (ADH) was added to 95 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of the comparative example 1.

Comparative Example 2

4 parts of calcium chlorides were added to 96 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of the comparative example 2.

Comparative Example 3

30 parts of powder urea were added to 70 parts of distilled water, and it fully stirred, and prepared the aldehyde deodorant composition of the comparative example 3.

[Comparative Example 4]

The vinyl acetate resin emulsion (45% of distillation residue) was fully stirred, and the composition of the comparative example 4 was prepared.

[Test Example]

In each deodorant obtained by the test example and the comparative example, the deodorizing performance was evaluated based on the measuring method of [JAS ordinary plywood formaldehyde dissipation amount] according to the following method.

[Preparation of Test Piece]

Each formaldehyde deodorant obtained in Example 1-8 or Comparative Example 1-3 was evenly sprayed on the both sides of the F2 plywood (a) (each 35 cm × 35 cm × 0.55 cm) at a rate of 22.2 g / m ² using an atomizer. did. The samples were dried at room temperature, and each sample was put in a plastic bag and cured for 24 hours. After curing, 10 pieces of rectangular specimens of 15 cm × 5 cm × 0.55 cm were cut out from each sample. Moreover, the test piece which did not process the formaldehyde deodorant of the same shape as each said sample piece was prepared as a block.

In Examples 9, 10 and Comparative Example 4, 40 g / m ^{2 was} applied to one surface of another F 2 plywood (b) (35 cm × 35 cm × 0.55 cm) having a smaller amount of formaldehyde dissipation than (a). Test specimens were prepared in the same order as.

Table 1 summarized the components of the test piece. The emulsion represents a vinyl acetate resin emulsion (45% distillation residue).

(A) ingredient Addition amount (part) (B) ingredient Addition amount (part) additive Addition amount (part) Water or emulsion Addition amount (part) Application method Example 1 ADH 5 Calcium chloride 4 - - Distilled water 91 both sides Example 2 ADH 5 Sodium hydroxide 4 - - Distilled water 91 both sides Example 3 ADH 5 Sodium sulfate 4 - - Distilled water 91 both sides Example 4 ADH 5 Calcium sulfate 4 - - Distilled water 91 both sides Example 5 ADH 10 Calcium chloride 10 - - Distilled water 80 both sides Example 6 Carbohydrazide 2 Calcium chloride 8 - - Distilled water 90 both sides Example 7 ADH 4 Calcium chloride 2 Element 4 Distilled water 90 both sides Example 8 ADH 5 Sodium sulfite 10 - - Distilled water 85 both sides Example 9 ADH 3 Calcium chloride 2 - - emulsion 95 One side Example 10 ADH 3 Calcium chloride 2 Titanium oxide 20 emulsion 95 One side Comparative Example 1 ADH 5 - - - Distilled water 95 both sides Comparative Example 2 - - Calcium chloride 4 - - Distilled water 96 both sides Comparative Example 3 - - - - Element 30 Distilled water 70 both sides Comparative Example 4 - - - - - emulsion 100 One side Blank - - - - - - - - -

How to measure

Place a crystal dish (120 mm in diameter, 60 mm in height) in which 300 ml of distilled water is placed at the bottom of the decimator (240 mm in size of about 101 mm in size specified in JIS R3503), and the magnetic plate is placed thereon, and the test piece is placed thereon. Ten sheets were placed, and formaldehyde released by standing at 20-25 ° C. for 24 hours was absorbed in distilled water to obtain a sample solution.

The formaldehyde concentration in the sample solution was colorimetrically determined using a photochromic system by the acetylacetone method.

The results are shown in Tables 2 and 3. The addition amount in a table | surface is represented by weight% conversion with respect to the total amount of deodorant obtained by aqueous solution. In addition, the amount of dissipation in the table indicates the amount of dissipation of formaldehyde (mg / 1). In addition, the removal rate in a table | surface shows the dispersion | distribution amount reduction rate (dividing the removal amount with respect to the formaldehyde dissipation amount of a blank (formaldehyde dissipation amount in an untreated F2 plywood)) as a percentage (%).

Formaldehyde Dispersion [mg / 1] Dissipation Reduction Rate [%] Example 1 0.27 94.9 Example 2 0.42 92.1 Example 3 0.43 91.9 Example 4 0.42 92.1 Example 5 0.15 97.2 Example 6 0.08 98.5 Example 7 0.22 95.9 Example 8 0.10 98.1 Comparative Example 1 1.05 80.3 Comparative Example 2 4.86 8.5 Comparative Example 3 1.45 72.7 Blank 5.32 -

Formaldehyde Dispersion [mg / 1] Dissipation Reduction Rate [%] Example 9 0.43 75.7 Example 10 0.45 74.6 Comparative Example 4 1.73 2.3 Blank 1.77 -

It is evident that the deodorant composition of the embodiment of the present invention has an excellent aldehyde deodorizing ability than that of the aldehyde deodorant alone, and has a higher aldehyde deodorizing ability compared with the case of adding calcium chloride alone or urea alone. In particular, as the component (B), it was found that the aldehyde deodorizing ability in the case of adding calcium chloride was particularly excellent.

The deodorant composition of the present invention also found that the aldehyde deodorizing ability worked effectively even when used in the form of an emulsion.

As mentioned above, the aldehyde deodorant composition of this invention is more excellent in the deodorizing ability compared with the aldehyde deodorant alone, and is excellent in the deodorizing effect of aldehydes.

Claims (5)

An aldehyde deodorant composition comprising at least one selected from (A) hydrazides, azoles and azines, and at least one selected from halides, acetates, sulfates, sulfites and hydroxides of (B) metals. An aldehyde deodorant composition comprising at least one selected from (A) hydrazides, azoles and azines, and at least one selected from halides, acetates, sulfates and hydroxides of (B) metals. An aldehyde deodorant composition comprising at least one selected from (A) hydrazides, azoles and azines and at least one selected from halides of (B) metals. An aldehyde deodorant composition comprising at least one selected from (A) hydrazides, azoles and azines, and (B) calcium chloride as an active ingredient. The aldehyde deodorant composition according to Claims 1 to 4, wherein at least one selected from a combination of (C) pearlite, zeolite, silica gel, activated carbon, urea, ferrous sulfate and L-ascorbic acid is added as an active ingredient. .