JP3108701B2 - Deodorizing liquid and deodorizing spray - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a deodorizing solution and a deodorizing spray containing a calcium phosphate compound.

[0002]

2. Description of the Related Art Activated carbon has been generally used as a solid deodorant. Activated carbon can adsorb and remove a considerable amount of malodorous components, but cannot effectively adsorb and remove basic gases such as ammonia. In addition, since solid deodorants lack diffusivity, they are usually used as stationary types.

[0003] Recently, deodorizing sprays that can be sprayed at necessary locations have been proposed, but most of them consist only of liquid components, and the deodorizing effect has not been maintained for a long time due to evaporation. Further, in the case of using the deodorizing component of the powder, since the dispersibility of the powder is low, there have been problems such as precipitation of the powder component and clogging of the injection nozzle.

[0004]

An object of the present invention is to provide a deodorizing liquid which can adsorb and remove any malodorous components as well as ammonia, disperse the powder well, do not cause clogging of the injection nozzle, and maintain the deodorizing action for a long time after application. It is intended to provide a deodorizing spray.

[0005]

According to the present invention, the above object has been achieved by using an extremely fine calcium phosphate compound powder as a deodorizing component and dispersing the powder in an alcoholic dispersion medium using a surfactant. .

That is, the deodorizing solution of the present invention comprises a calcium phosphate compound powder having an average particle size of 1 to 50 μm and a Ca / P molar ratio of 1.0 to 2.0, a surfactant having a deodorizing effect, and alcohol. It is characterized by including.

[0007] A deodorizing spray of the present invention is characterized by comprising the above-mentioned deodorizing liquid of the present invention and a propellant.

The calcium phosphate compound used in the deodorizing solution of the present invention has a Ca / P molar ratio of 1.0 to 2.0, for example, various apatites such as hydroxyapatite and fluorapatite, and tricalcium phosphate. , Tetracalcium phosphate and the like can be used. These compounds can be produced by a method known per se, and can be used alone or as a mixture. These calcium phosphate compounds may be in the form of powder, granules or porous granules, but preferably have an average particle size of about 1 to 50 μm.

[0009] The deodorizing solution according to the present invention preferably contains 5 to 30% by weight of the above-mentioned calcium phosphate compound. If the content is less than 5% by weight, a sufficient deodorizing effect may not be achieved. If the content is more than 30% by weight, a strong white color of calcium phosphate remains in the injection target portion.

As the dispersion medium for the calcium phosphate compound in the deodorizing solution of the present invention, alcohols, for example, methanol, ethanol, isopropanol and the like can be used. The alcohol used is
It need not be pure and may contain a small amount of water.

In the present invention, a surfactant is used to disperse the calcium phosphate compound powder in alcohol. As the surfactant, various surfactants such as anionic, nonionic and amphoteric surfactants can be used.
Examples of the anionic surfactant include a carboxylate, a sulfonate, a sulfate, a phosphate, and a phosphonate. Examples of the nonionic surfactant include fatty acid monoglycerin ester, fatty acid sorbitan ester, fatty acid polyglycerin ester, and fatty acid alkanolamide.Examples of the amphoteric surfactant include betaine, sulfobetaine, and sulfate betaine. Can be

It is preferable to use a surfactant having a deodorizing effect, since the deodorizing effect is further improved. Examples of surfactants having a deodorizing effect include, for example, alkylaminocarboxylic acid-type amphoteric surfactants, alkylcarboxybetaine-type amphoteric surfactants, higher alkyldicarboxylic acid-type anionic surfactants, and fatty acid monoethanolamide-type nonionic surfactants And glycerin monostearate, polyethylene glycol dilaurate, oxyfinolin sansulfate and the like.

The deodorizing solution of the present invention preferably contains a surfactant in an amount of 1 to 10% by weight depending on the content of the calcium phosphate compound. If the amount is less than 1% by weight, the calcium phosphate compound cannot be sufficiently dispersed, and if the amount exceeds 10% by weight, for example, when it is sprayed on socks, evaporation is slowed down, giving a feeling of discomfort.

A fragrance can be added to the deodorizing solution of the present invention, if desired.

Since the deodorizing liquid of the present invention contains fine calcium phosphate compound powder dispersed well, it can be used as a deodorizing spray without clogging the injection nozzle if filled in a spray container together with a propellant. Can be.

The deodorizing spray of the present invention preferably contains 5 to 50% by weight of the above-mentioned deodorizing liquid of the present invention. When the deodorizing liquid is less than 5% by weight, the deodorizing effect is insufficient,
If it exceeds 50% by weight, the relative amount of the propellant is reduced, and it is not possible to spray effectively.

As the propellant, LP gas or LP gas is used.
Mixtures of gas and dimethyl ether can be used.

[0018]

Next, the present invention will be described more specifically based on examples, but the present invention is not limited thereto. In the examples, “parts” means “parts by weight” unless otherwise specified.

Example 1 7.0 parts of hydroxyapatite having an average particle size of 4.0 μm and a Ca / P ratio of 1.67, 85 parts of ethanol, and an alkylcarboxybetaine-type amphoteric surfactant having a deodorizing effect. 7 parts and 0.3 part of a fragrance were mixed by stirring to prepare a deodorant liquid.

First, 30 g of the above-mentioned deodorizing liquid was poured into a polyacrylonitrile resin tank body, the tank was welded, and 70 g of LP gas as a propellant was filled and sealed in a spray container. The performance of this spray was evaluated and the results are shown in Table 1.

Example 2 As a deodorizing liquid, 5.0 parts of tricalcium phosphate having an average particle diameter of 20 μm and a Ca / P ratio of 1.5, 90 parts of denatured alcohol,
As a surfactant having a deodorizing action, 4.8 parts of polyethylene glycol dilaurate and 0.2 part of a fragrance were mixed by stirring to prepare an emulsion.

First, 40 g of the above-mentioned emulsion deodorizing liquid was charged into a polyacrylonitrile resin tank body, the tank was welded, and 42 g of LP gas and 18 g of dimethyl ether were charged as a propellant and sealed in a spray container. The performance of this spray was evaluated and the results are shown in Table 1.

Example 3 6 parts of spherical hydroxyapatite having an average particle diameter of 10 μm and a Ca / P ratio of 1.67, 80 parts of ethanol, 10 parts of water, and an alkylaminocarboxylic acid type surfactant 3 having a deodorizing action 9.9 parts and 0.1 part of perfume were stirred and mixed to prepare an emulsion deodorant.

First, 30 g of the above-mentioned emulsion deodorizing solution was put into a steel tank body, and then the tank was welded, and 70 g of LP gas was charged as a propellant and sealed in a spray container. The performance of this spray was evaluated and the results are shown in Table 1.

Comparative Example 1 The same deodorizing solution was prepared except that hydroxyapatite was omitted in Example 1, and the deodorizing solution was used in Example 1.
A spray is made in the same manner as above, and its performance is evaluated.
The results are shown in Table 1.

Comparative Example 2 The same deodorizing solution was prepared except that the alkylaminocarboxylic acid type surfactant was omitted in Example 3, and a spray was prepared in the same manner as in Example 3 using this deodorizing solution. The performance was evaluated, and the results are shown in Table 1.

The performance of the spray was evaluated by the following test method. Deodorizing ability Using a 5-liter Tedlar bag, measurement was performed after 5 minutes by a detection tube method. The original odor concentration is 25 ppm of ammonia,
Methyl mercaptan was 30 ppm. The rating is shown as a 〇 more than 80% deodorization rate.

Antibacterial property After spraying onto filter paper (18 mm × 18 mm) for 2 seconds from a spray, 0.2 ml of a bacterium solution containing staphylococci was uniformly taken into the filter paper, and cultured at 35 ° C. for 18 hours without drying.
After adding 20 ml of sterile physiological saline to disperse viable cells in the liquid, the number of viable cells was measured for the liquid by a plate culture method. The evaluation was performed according to the following criteria. 〇: Less than 0.05% of control (sterile filter paper) ×: 0.05% or more of control (sterile filter paper)

Virus adsorbability The virus was suspended in the solution, and the undiluted solution and the solution passed through a filter paper sprayed with the spray prepared in each Example for 2 seconds were used as a test solution, and the titer (ti) was determined by chicken hemagglutination.
ter) was evaluated. The evaluation was performed according to the following criteria. 〇: There was a difference of two or more levels in the titer . ×: Difference in titer is one stage or less.

Settling Phenomenon The spray was shaken well, allowed to stand, and observed after 30 minutes. The evaluation was performed according to the following criteria. 〇: Suspended state was maintained. X: Separation and sedimentation.

[0031]

[Table 1]

[0032]

Since the deodorizing solution and the deodorizing spray of the present invention contain a calcium phosphate compound as a deodorizing component, they also exhibit an adsorption effect on basic substances such as ammonia and can adsorb a wide range of malodorous components. It can be applied to places emitting bad odors, for example, kitchens, garbage collection points, garbage, toilets, etc. to deodorize. In addition, the calcium phosphate-based compound, which is a solid deodorizing component, remains after the dispersion medium is evaporated after application to a place where a bad odor is generated, so that the deodorizing effect is maintained for a long time. Further, since it has no harm to living organisms, it can be applied to human bodies such as feet and armpits. Furthermore, since the deodorizing solution and the deodorizing spray of the present invention are odorless, they may be used as they are, or may be used by adding various fragrances.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Fumie Yasukawa 2-36-9 Maenocho, Itabashi-ku, Tokyo Asahi Optical Industry Co., Ltd. (56) References JP-A-62-135411 (JP, A) JP-A-62-135411 Hei 3-146132 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) A61L 9/00-9/22

Claims (6)

(57) [Claims] 1. A mean particle size of 1 to 50 [mu] m, calcium phosphate-based compound powder in a molar ratio of Ca / P is 1.0 to 2.0, a surfactant and an alcohol having a deodorizing action including
Surfactant that has a deodorizing effect
Rubonic acid type amphoteric surfactant, alkyl carboxybetai
Amphoteric surfactants, higher alkyl dicarboxylic acid ani
On-surfactant, fatty acid monoethanolamide type nonio
Surfactant, glycerin monostearate, polyethylene
Renglycol dilaurate and oxyfinolin sun
A deodorant solution selected from the group consisting of sulfates . 2. The deodorizing liquid according to claim 1, wherein the deodorizing liquid contains 1 to 30% by weight of calcium phosphate compound powder. 3. The deodorizing solution according to claim 1, wherein the deodorizing solution contains 1 to 10% by weight of a surfactant. 4. A deodorizing spray comprising the deodorizing liquid according to any one of claims 1 to 3 and a propellant. 5. The deodorizing spray according to claim 4, comprising 5 to 50% by weight of a deodorizing liquid. 6. The deodorizing spray according to claim 4, wherein the propellant is LP gas or a mixture of LP gas and dimethyl ether.