JP3227107B2 - Powder deodorant, granular deodorant, and methods for producing them - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery deodorant, a granular deodorant using a phthalocyanine-based compound having a deodorizing ability (hereinafter referred to as "phthalocyanine"), and a method for producing the same. . In particular, the present invention relates to a deodorant having a strong deodorizing power, a long life, and applicable to a wide range of malodors and odors.

[0002]

2. Description of the Related Art As a method for eliminating malodors and odors in living areas, there is an enzymatic oxidation deodorization method using metal phthalocyanine as a catalyst. As a phthalocyanine having such a deodorizing ability, a complex having 4 to 8 sulfonic acid groups or carboxyl groups is generally known (JP-A-55-325).
No. 19, JP-A-56-63355, JP-A-62-290462, JP-B-5
-21919).

[0003] These phthalocyanines can be carried on a carrier to form a deodorant. As the carrier, fibers and powders having adsorbing ability are generally used.

For example, JP-A-61-258077 discloses cellulose fibers, JP-A-61-258087 discloses polyamide fibers, JP-A-63-203817 discloses polyester fibers, and JP-A-63-235518. In the publication, polyvinyl alcohol fiber,
Japanese Patent Publication No. 2-13064 discloses a highly wetted regenerated cellulose fiber, and Japanese Patent Publication No. 5-51718 discloses a wet nonwoven fabric,
In JP-307983A, cationized fibers and the like are described as carriers.

In such a conventional deodorant, phthalocyanine is carried on a fiber material by a dyeing method. Therefore, phthalocyanine is easily eluted from the fiber material, and the deodorizing power of the deodorant is easily reduced.

JP-A-4-89062 discloses a deodorant in which phthalocyanine is fixed on a powder surface, JP-A-64-25856 discloses a napkin in which carboxyphthalocyanine is directly supported on a highly absorbent sheet, JP-A-5-277167 describes an absorber in which a metal phthalocyanine is held in a granular or massive absorber.

In this case, static electricity is generated between the phthalocyanine and the carrier by a mechanical impact force, and the phthalocyanine is fixed to the carrier by the suction force. Therefore, the phthalocyanine is easily dropped off, and the deodorizing power of the deodorant is easily reduced.

Further, Japanese Patent Publication No. 6-35713 describes a deodorant in which phthalocyanine is fixed on a surface of a supporting substrate such as cellulose by using chitosan as a binder. However, also in this case, the fixing of the phthalocyanine is often uneven and insufficient, and the persistence of the deodorizing power is poor.

By the way, when phthalocyanine is used as a deodorizing catalyst, there is a significant difference in the deodorizing effect depending on the method of loading. In order to obtain a strong deodorizing effect, it is necessary for as many phthalocyanine molecules as possible to effectively contact malodorous molecules and also to contact oxygen and water molecules necessary for the oxidation reaction.

However, when phthalocyanine is directly supported on a carrier as in the prior art, a plurality of phthalocyanine molecules are easily associated and stabilized because the phthalocyanine molecules are kept in a state where they can directly interact with each other. As a result, the reaction activity of phthalocyanine decreases, and the deodorizing power of the deodorant tends to decrease.

[0011]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned conventional problems.
An object of the present invention is to provide a deodorizing material which is excellent in deodorizing power and can maintain deodorizing power for a long time.

[0012]

SUMMARY OF THE INVENTION The present invention provides a powdery deodorant having unit particles composed of a swellable polymer and phthalocyanine having a deodorizing ability uniformly dispersed therein. Further, the present invention is a granular deodorant having a granular substrate and a powdery deodorant fixed on its surface with a binder, wherein the powdery deodorant has a swelling property. Provided is a granular deodorant comprising unit particles composed of a polymer and phthalocyanine having a deodorizing ability uniformly dispersed therein. And the above object is achieved thereby.

[0013]

DETAILED DESCRIPTION OF THE INVENTION The phthalocyanine having deodorizing ability used in the present invention has the formula

[0014]

Embedded image

A compound having the structure shown below.

In the formula, X is each independently a hydrogen atom,
Examples thereof include a carboxyl group, a sulfonic acid group, an amino group, a halogen group, a nitro group, a hydroxyl group, an alkyl group, an alkoxy group, a phenoxy group, and a sulfonamide group.

Preferred phthalocyanines are those having 2 to 8 carboxyl groups or sulfonic acid groups as substituents X. Further, it may have an amino group, a halogen group, a nitro group, a hydroxyl group or the like as 2 to 4 substituents X.

M is Cu, Co, Fe, Ni, Zn, T
Shows polyvalent metals such as i, V, and Mo. Co, Fe (II
I), Cu is preferred.

Preferred specific examples include cobalt phthalocyanine tetracarboxylate, iron (III) phthalocyanine tetracarboxylate, cobalt phthalocyanine octacarboxylate, iron (III) phthalocyanine octacarboxylate, cobalt phthalocyanine tetrasulfonate and iron tetrasulfonate. (III) phthalocyanine, copper phthalocyanine tetrasulfonate, and cobalt phthalocyanine tetraaminotetracarboxylate.

The above-mentioned metal phthalocyanines and methods for synthesizing them are known. In the present invention, Japanese Patent Application No. Hei 8-2616
It is preferable to use a high-purity metal phthalocyanine synthesized by the method described in No. 50, particularly, cobalt phthalocyanine tetracarboxylate.

The cobalt phthalocyanine tetracarboxylate is synthesized, for example, by the following method. First, a stirrer,
In a 10-L glass four-necked flask equipped with necessary equipment such as a reflux tube, 1152 g of trimellitic anhydride, 1800 g of urea
g, ammonium molybdate 10 g, cobalt chloride 6
Charge 360 g of hydrate and 3000 g of triglyme,
The mixture was stirred at 130 ° C. for 1 hour, followed by 200 ° C.
And stir for 4 hours. Then, after cooling to about 100 ° C., 5000 g of hot water at about 80 ° C. is gradually added to the reaction mixture, and the mixture is further stirred under reflux for 2 to 3 hours. Next, the obtained wet cake is poured into 6000 parts of a 20 to 30% potassium hydroxide solution, and stirred under reflux for 12 hours. The reaction mixture is
After cooling using an ice bath, 4130 g of concentrated hydrochloric acid is added dropwise so as not to exceed 30 ° C., and the mixture is further stirred for 1 hour. The resulting slurry is collected by filtration, sprinkled and washed with 80 to 100 L of water to remove salts, and then dried and pulverized. According to this synthesis method, 693.4 g of cobalt phthalocyanine tetracarboxylate having a high purity can be obtained with a yield of 61.9%.

Also, iron phthalocyanine tetracarboxylate, iron phthalocyanine octacarboxylate, etc.
-261650, and these can be suitably used in the present invention.

These phthalocyanines are effective for malodorous substances in daily life. In particular, it is effective against malodorous substances such as ammonia and amines, and hydrogen sulfide and mercaptans.

The deodorizing action is due to an oxidation reaction on malodorous substances catalyzed by phthalocyanine.
(i) Enzymatic oxidation or autoxidation reaction involving hydrogen transfer by molecular oxygen, (ii) hydrogen peroxide oxidation, (iii) enzyme addition reaction, and the like.

For example, in the oxygen oxidation reaction using a deodorizing catalyst such as cobalt phthalocyanine tetracarboxylate or iron (III) phthalocyanine octacarboxylate, (a) a mixed complex is formed by ligand exchange with a substrate (for example, ammonia). , (B) Central metal (for example, transition metal such as cobalt or iron)
It is thought that the process proceeds through a cycle in which an electron transfer reaction takes place between the substrate and the substrate, (c) an oxidation reaction product (odorless substance) is released, and (d) a deodorizing catalyst is regenerated.

It is known that the phthalocyanine used in the present invention has the following advantages as a catalyst (Journal of the Society of Textiles, “Fiber and Industry”, Vol. 41, No. 8, pp. 267-274,
1985). (1) The reaction rate is high. (2) The reaction rate reaches 100% because the substrate (odor) concentration is significantly lower than the amount of the catalyst. (3) This is a model reaction of a metalloenzyme, has low activation energy, reacts even at room temperature, and occurs in an aqueous system. (4) Since it is a cycle reaction, its life is longer than other methods. (5) The operating cost is small. (6) Easy handling. (7) No secondary pollution. (8) Compared to enzymes, the range of application such as temperature and pH is wider,
Cost is low.

In the present invention, the swellable polymer means a polymer which swells with a solvent such as water to become a gel or paste. Such polymers include natural proteins such as collagen, gelatin, silk, casein, gluten;
Natural polysaccharides such as starch, chitosan, alginic acid, gums; modified cellulose, hydroxypropyl cellulose,
Cellulosic polymers such as carboxymethyl cellulose;
Synthetic polymers such as polyvinyl alcohol, polypyrrolidone, and maleic anhydride methyl vinyl ether; and the like.

As the swellable polymer used for the powdery deodorant, a cellulosic polymer which swells with an aqueous solvent is preferable. Cellulose-based polymers have excellent safety for the human body,
This is because, when considering a wide range of applications, it is necessary to consider its safety in developing diapers and sanitary products.

In the present invention, the swellable polymer is used as a powder. In the present specification, the powder refers to an aggregate of fine unit particles. Generally, the unit particles have an average particle size of about 10
It is 30 μm.

The mixing (blending) ratio of the swellable polymer and phthalocyanine in the powdery deodorant of the present invention is not particularly limited. Generally, 20 to 0.5 parts by weight, preferably 10 parts by weight, of phthalocyanine is added to 100 parts by weight of the swellable polymer.
About 1 part by weight. When the amount is more than 20 parts by weight, phthalocyanine molecules are easily associated with each other and are not economical. If the amount is less than 0.5 parts by weight, the deodorizing power is reduced.

The powdery deodorant of the present invention is preferably produced by a method including the following steps.

First, an aqueous solution of phthalocyanine having deodorizing ability is provided. As the aqueous solution of phthalocyanine having deodorizing ability, an aqueous solution in which phthalocyanine is uniformly dissolved in a dilute alkaline aqueous solution is generally used. The concentration of phthalocyanine in the aqueous solution can be appropriately adjusted in consideration of the amount of phthalocyanine contained in the powdery deodorant. In general,
It is dissolved in an amount of 0.1 to 20% by weight, preferably 1 to 10% by weight.

As the alkali, NaOH, KOH, Na
₂ CO ₃ , NaHCO ₃ or the like is used. The concentration of the alkali is generally 0.1 to 10% by weight, preferably 0.5 to 5% by weight.
And

Next, an aqueous solution of phthalocyanine having deodorizing ability is brought into contact with a swellable polymer powder. Specifically, an aqueous solution of phthalocyanine having deodorizing ability may be charged into a container containing the swellable polymer, or the swellable polymer may be charged into a container containing an aqueous solution of phthalocyanine having deodorizing ability. good.

The resulting mixture is generally left for 0 to 24 hours. In that case, it agitates as needed. The swellable polymer absorbs the aqueous solution and swells, and phthalocyanine having deodorizing ability is uniformly dispersed in the unit particles.

Next, the obtained mixture is dried and, if necessary, further pulverized to obtain a powdery deodorant. Drying may be performed at a temperature at which the swellable polymer to be used is not decomposed and during a time period in which water is sufficiently evaporated from the swellable polymer. Generally 60-7
Perform at 0 ° C. for 2 to 24 hours. The pulverization is performed using a ball mill, sand mill, paint shaker, attritor, automatic mortar, or the like, and the average particle size is 50 μm or less, preferably 1 μm or less.
Perform until the thickness becomes 0 to 30 μm. The obtained powdery deodorant may be further classified.

FIG. 1 shows an example of a process for producing a powdery deodorant.

The powdery deodorant material of the present invention thus obtained has a phthalocyanine, which is a deodorizing catalyst, uniformly supported or dispersed throughout the swellable polymer, and the phthalocyanine functions as a catalyst. It is present in an environment that allows it to come in contact with the moisture and oxygen needed. As a result, the powdery deodorant of the present invention has a strong deodorizing power and a long life.

In particular, the following functions and new functions are expected by using the swellable polymer.

That is, (1) the hygroscopicity of the swellable polymer affects the deodorizing performance. (2) It is easy to set the pH environment according to the adsorption characteristics of the deodorizing performance. (3) It is possible to prepare powders having different swelling properties and solubility in an acid or alkali aqueous solution.

The powdery deodorant of the present invention can be used by being supported on various substrates depending on its use. In particular, it is preferable to use a granular base material because handling becomes convenient and versatility is excellent. In the present specification, the granules mean an average particle size of about 50 to 5000 μm, preferably 100 to 20 μm.
It refers to 00 μm particles.

The granular substrate may be any one that can support a powdery deodorant on its surface. Examples of such a granular substrate include, but are not limited to, those obtained by forming the swellable polymer into granules.

A preferred granular substrate is a swellable polymer formed into a granular form. For example, a granular base material can be obtained by modifying the above-mentioned swellable polymer powder to increase the particle size, and drying and classifying as needed. Generally, the swellable polymer powder can be increased in particle size by adding a binder such as water, chitosan and alginic acid, and an additive such as peracetic acid-treated wool powder and stirring at high speed. The operation of increasing the particle size of the swellable polymer powder is well known to those skilled in the art, and various conditions can be used depending on the desired particle size.

For example, a granular substrate is prepared by adding a certain amount of a substrate (eg, a swellable polymer having a granulating ability such as hydroxypropylcellulose or modified cellulose powder, wool treated with peracetic acid) to a powder surface modification device. Powder, etc.), setting the apparatus so that the powder has a desired particle size, coarsening while adding water in portions, drying the obtained particles sufficiently, and classifying. .

The powdery deodorant of the present invention is generally supported on a granular substrate by fixing it to the surface of the granular substrate using a binder. Water, chitosan, alginic acid, carboxymethyl cellulose (C
Aqueous solutions of various thickeners such as MC) and gelatin are generally used. In the present specification, "fixing to the surface" includes a state in which the powdery deodorant material is slightly immersed and fixed from the surface of the granular base material.

For example, a powdery deodorant and a granular substrate are uniformly mixed, and a binder is added to the mixture. And
By further mixing, a powdery deodorant can be attached to the surface of the granular substrate. Next, the obtained mixture is dried, pulverized, and classified to obtain a granular deodorant having a desired particle size.

Alternatively, a predetermined amount of the granular base material is classified as required, and is charged into a powder surface reforming apparatus. Then, the granules are uniformly wetted while gradually adding water as a binder. A certain amount of a powdery deodorant is added little by little to uniformly adhere to the granule surface. Next, the obtained mixture is dried, pulverized, and classified to obtain a granular deodorant having a desired particle size.

The mixing ratio of the granular base material and the powdery deodorant depends on the type and amount of the phthalocyanine used and is not particularly limited. For example, (containing) phthalocyanine
When using a powdery deodorant having a concentration of about 1 to 10% by weight,
It is desirable that the weight ratio be about 1/5 to 1/50 with respect to the granular base material.

FIG. 2 shows an example of the production process of the granular deodorant.

This embodiment of the present invention provides a granular deodorant having high deodorizing ability and durability by fixing a powdery deodorant on the surface of a granular substrate with a binder.
Thereby, the handling of the powdery deodorant of the present invention becomes easy, and the application development is greatly expanded.

The following advantages are expected by fixing (adhering, fixing or coating) the powdery deodorant on the surface of the granular substrate.

(1) It is possible to produce a granular deodorant in which several kinds of powder deodorants containing a deodorant catalyst (deodorant component) corresponding to the odor component are mixed. (2) The particle size of the granules can be adjusted by any of a powdery deodorant and a granular substrate, and a granular deodorant having a particle size suitable for the intended use can be produced. (3) By selecting a drying method such as freeze-drying, the porosity of the granules can be adjusted, and the contact between phthalocyanine, which is a deodorizing catalyst, and moisture and oxygen can be facilitated.

Further, in the present invention, a magnetic mineral such as ferrite may be used as the granular base material, which facilitates recovery and reuse, and reduces the cost.

[0054]

The granular deodorant of the present invention is obtained by fixing a powdery deodorant in which a phthalocyanine-based deodorant catalyst is uniformly supported on a swellable polymer, and further fixing the same to harmless hygroscopic granules. Therefore, it is in an optimal environment for the function of phthalocyanine, which is a deodorizing catalyst, to work. For this reason, it has a strong deodorizing effect and excellent sustainability, handleability, and environmental friendliness. When used in diapers, sanitary products, and the like, various desired products can be easily manufactured by simply combining with the existing composition material of the polymer absorber.

[0055]

The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

Example 1 Production Example 1 of Powdery Deodorant Material Cobalt phthalocyanine tetracarboxylate (deodorant catalyst)
2.5 g was dissolved in 50 ml of a 1.0% alkaline solution to prepare a uniform aqueous phthalocyanine solution. This aqueous solution was treated with hydroxypropylcellulose (HPC) 25.
HPC was swollen by adding to 0 g and stirring. The mixture is dried at 60 to 70 ° C. for 10 to 24 hours, and then pulverized with a ball mill to an average particle size of 10 to 30 μm, and powdery deodorant having HPC unit particles having cobalt phthalocyanine tetracarboxylate uniformly therein. 25 g of material was obtained.

Example 2 Production Example 2 of Powdery Deodorant Material In the same manner as in Example 1 except that carboxymethylcellulose (CMC) was used instead of HPC, cobalt phthalocyanine tetracarboxylate was uniformly dispersed in unit particles of CMC. 25 g of a powdery deodorant having the above.

Example 3 Production Example of Powdery Deodorant Material 3 The unit of modified cellulose was the same as in Example 1 except that hydroxypropyl cellulose was replaced by modified cellulose (Avicel powder manufactured by Asahi Kasei Corporation). 25 g of a powdery deodorant having cobalt phthalocyanine tetracarboxylate uniformly in the particles was obtained.

Example 4 Production Example of Granular Deodorant Material 1 Powder Surface Modifier (LFS-GS-2JD manufactured by Fukae Kogyo Co., Ltd.)
Avizel powder (manufactured by Asahi Kasei Corporation) was put into a high-speed mixer, and the conditions were set to a particle size of 150 to 250 μm, and water was used as a binder and dividedly added to the apparatus. The resulting granules were dried and classified with a sieve to a particle size of 150 to 250 μm to obtain a granular substrate.

A powder surface reforming apparatus (LFS-GS-2JD type high-speed mixer manufactured by Fukae Kogyo Co., Ltd.) was used to prepare 120 g of the obtained Avizel granular base material and 12 g of the powdered deodorant prepared in Example 1. After uniform mixing in the inside, 60 ml of water was added as a binder, and the powdered deodorant was fixed on the surface of the granular substrate. Next, the resultant was dried at 60 to 70 ° C. for 10 to 20 hours, and classified with a sieve to a particle size of 150 to 250 μm to obtain 60 g of a granular deodorant.

Example 5 Production Example of Granular Deodorant Part 2 Powder Surface Modifier (LFS-GS-2JD manufactured by Fukae Kogyo KK)
Avizel powder (manufactured by Asahi Kasei Corporation) was charged into a mold high-speed mixer, the conditions were set to a particle size of 500 to 250 μm, and water was used as a binder and dividedly added to the apparatus. The resulting granules were dried and classified with a sieve to a particle size of 500 to 250 μm to obtain a granular substrate.

After 120 g of the obtained Avizel granular base material and 12 g of the powdery deodorant prepared in Example 1 were uniformly mixed in the above powder surface reforming apparatus, 60 ml of water was added as a binder. Then, the powdery deodorant was fixed on the surface of the granular substrate. Next, the resultant was dried at 60 to 70 ° C. for 10 to 20 hours, and classified with a sieve to a particle size of 500 to 250 μm to obtain 60 g of a granular deodorant.

Example 6 Production Example of Granular Deodorant Part 3 Powder Surface Modifier (LFS-GS-2JD manufactured by Fukae Kogyo Co., Ltd.)
Avizel powder (manufactured by Asahi Kasei Corporation) was charged into a mold high-speed mixer, conditions were set to a particle size of 750 to 500 μm, and water was used as a binder and added to the apparatus in portions. The produced granules were dried and classified by a sieve into a particle size of 750 to 500 μm.

After 120 g of the obtained Avizel granular base material and 12 g of the powdered deodorant prepared in Example 1 were uniformly mixed in the above powder surface reforming apparatus, 60 ml of water was added as a binder. Then, the powdery deodorant was fixed on the surface of the granular substrate. Next, the resultant was dried at 60 to 70 ° C. for 10 to 20 hours, and classified with a sieve to a particle size of 750 to 500 μm to obtain 60 g of a granular deodorant.

Example 7 Production Example 4 of Granular Deodorant Material 4 120 g of the Avizel granular base material prepared in Example 5 and 12 g of the powdery deodorant material prepared in Example 2 were mixed with a powder surface reforming apparatus. After uniform mixing in the inside, 60 ml of water was added as a binder, and the powdered deodorant was fixed on the surface of the granular substrate. Next, the resultant was dried at 60 to 70 ° C. for 10 to 20 hours, and classified with a sieve to a particle size of 500 to 250 μm to obtain 60 g of a granular deodorant.

Example 8 Production Example 5 of Granular Deodorant Material Avizel granular substrate was obtained in the same manner as in Example 6. After 120 g of the granular base material and 12 g of the powdery deodorant prepared in Example 3 were uniformly mixed in a powder surface modification device,
60 ml of water was added as a binder, and the powdered deodorant was fixed on the surface of the granular substrate. Then 60-70 ° C
For 10-20 hours, and sieve with a particle size of 750-500μ
m to obtain 60 g of a granular deodorant.

Comparative Example 1 120 g of the granular cellulose substrate obtained in Example 5, 0.6 g of chitosan (citric acid additive), and cobalt phthalocyanine tetracarboxylate described in JP-B-6-35713 And 12 g of powder of
60 g of water was added and stirred. The resulting mixture is treated with 60-70
And dried at 10 ° C. for 10 to 20 hours.
The particles were classified into μm to obtain 60 g of a granular deodorant.

Comparative Example 2 0.1 g of cobalt phthalocyanine tetracarboxylate was added to 1
A double-sided tape was used to uniformly adhere to a filter paper of 0 cm × 10 cm. In this case, the amount of adhering (supporting) the cobalt phthalocyanine tetracarboxylate is equivalent to about 10 g of the granular deodorant of Example 4.

Comparative Example 3 120 g of the granular cellulose substrate obtained in Example 5 and 12 g of cobalt phthalocyanine cobalt carboxylate powder obtained in Example 5 described in JP-A-4-89062 were used in a powder surface modification apparatus (Fukae). Industrial company, LFS-GS-2JD
And mixed uniformly, and water was added as a binder to the apparatus in portions. The produced granules are dried at 60 to 70 ° C. for 10 to 20 hours, and classified with a sieve to a particle size of 250 to 500 μm.
g was obtained.

Deodorizing power test 5.0 g of the deodorizing materials prepared in Examples 1, 3 to 6 and Comparative Examples 1 to 3 were prepared. The initial concentration is set to the living odor threshold concentration in each Tedlar bag (ammonia concentration 30
ppm, and the concentration of hydrogen sulfide was 5 ppm), the above-mentioned deodorant was placed in a Tedlar bag, and the odor concentration was measured at predetermined intervals using a detector tube. Changes over time in the odor reduction rate (%) are shown in FIGS.

The amount of cobalt phthalocyanine tetracarboxylate contained in the granular deodorizing materials of Examples 4 to 6 was as follows:
It is about 10 mg in 1 g of granular deodorant.

Table 1 (odor source: ammonia) and Table 2 (odor source: hydrogen sulfide) show the odor reduction rate (%) obtained in the above deodorizing power test.

[0073]

[Table 1]

[0074]

[Table 2] Example No. 0 min 10 min 20 min 25 min 30 min 35 min 60 min 1 0 72.7 100.0 3 0 100.0 4 0 48.8 68.3-78.0-97.6 5 0 48.6 73.0-83.8-91.9 600 0 38.0 68.0-80.0 -90.0 Comparison 1 0 16.7 16.7-16.7-16.7 Comparison 2 0 50.0 50.0-50.0-55.6 Comparison 30 2.0 4.7-4-4.
7-7.0

[Brief description of the drawings]

FIG. 1 is a process chart showing an example of a method for producing a powdery deodorant.

FIG. 2 is a process chart showing an example of a method for producing a granular deodorant material.

FIG. 3 is a graph showing the results of a deodorizing power test of the deodorizing material of the present invention using ammonia as an odor source.

FIG. 4 is a graph showing the results of a deodorizing power test of the deodorizing material of the present invention using hydrogen sulfide as an odor source.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yama ▲ saki ▼ Yasuhiro 8-1, Sanarahigashicho, Neyagawa-shi, Osaka Orient Chemical Industry Co., Ltd. (72) Inventor Tatsuto Yamashita Sanarahigashi-cho, Neyagawa-shi, Osaka No. 8 No. 1 in Laboratory of Orient Chemical Industry Co., Ltd. (56) References JP-A-62-97555 (JP, A) JP-A-5-15576 (JP, A) JP-A-3-198861 (JP, A) JP-A-5-277167 (JP, A) JP-B-6-35713 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61L 9/00-9/22

Claims (9)

(57) [Claims] 1. A unit particle comprising a cellulosic polymer,
And a phthalocyanine having deodorizing ability uniformly dispersed therein, and having a mean particle size of 50 μm or less. 2. The powdery deodorant according to claim 1, wherein the cellulosic polymer is hydroxypropyl cellulose or carboxymethyl cellulose. 3. The powdery deodorant according to claim 1, wherein the phthalocyanine having deodorizing ability is cobalt phthalocyanine tetracarboxylate or iron (III) phthalocyanine octacarboxylate. 4. The powdery deodorant according to claim 1, comprising 100 parts by weight of a cellulosic polymer and 20 to 0.5 parts by weight of phthalocyanine having deodorizing ability. 5. A step of providing an aqueous solution of a phthalocyanine having deodorizing ability; contacting the aqueous solution with a cellulosic polymer powder;
A step of uniformly dispersing phthalocyanine having deodorizing ability in unit particles composed of a cellulosic polymer; and a step of drying the obtained mixture and pulverizing the mixture so as to have an average particle size of 50 μm or less. A method for producing a body-like deodorant. 6. A granular deodorant comprising a granular base material and the powdery deodorant material according to claim 1, which is fixed on a surface thereof with a binder. 7. The granular deodorant according to claim 6, wherein the granular substrate is a cellulosic polymer. 8. The granular deodorant according to claim 6, wherein the average particle size is 50 to 5000 μm. 9. A step of obtaining the powdery deodorant according to any one of claims 1 to 4, and a step of fixing the powdery deodorant to the surface of the granular substrate using a binder. A method for producing a granular deodorant material.