JPH05115538A - Deodorizing solution and deodorizing spray - Google Patents

Abstract

PURPOSE:To provide a deodorizing solution and a deodorizing spray capable of adsorbing and removing wide malodors, never causing the clog of a spray nozzle because of satisfactory dispersed powder, and continuing deodorizing effect for a long time after application. CONSTITUTION:A deodorizing solution contains 1-30wt.% of a calcium phosphate compound powder having an average grain diameter of 1-50mum and a mole ratio of Ca/P of 1.0-2.0, 1-10wt.% of a surface active agent, and an alcohol. A deodorizing spray is formed of 5-50wt.% of the deodorizing solution and an LP gas (injecting agent).

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a deodorizing solution and a deodorizing spray containing a calcium phosphate compound.

[0002]

2. Description of the Related Art Conventionally, activated carbon is generally used as a solid deodorant. Activated carbon can adsorb and remove a considerable amount of malodorous components, but cannot adsorb and remove basic gases such as ammonia effectively. Further, the solid deodorant lacks diffusibility and is therefore usually used as a stationary type.

Recently, deodorizing sprays have been proposed which can be sprayed at required locations, but most of them consist of liquid components only, and the deodorizing effect did not last 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 are problems such as precipitation of the powder component and clogging of the injection nozzle.

[0004]

It is an object of the present invention to adsorb and remove not only ammonia but also all malodorous components, the powder is well dispersed, the injection nozzle is not clogged, and the deodorizing action lasts for a long time after application. The purpose is to provide a deodorant spray.

[0005]

The present invention achieves the above object by using a very fine calcium phosphate-based compound powder as a deodorizing component and satisfactorily dispersing this powder in an alcohol-based dispersion medium with a surfactant. ..

That is, the deodorizing solution of the present invention is characterized by containing 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 and an alcohol. And

The deodorizing spray of the present invention is characterized by comprising the above 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 fluoroapatite, and tricalcium phosphate. , Tetracalcium phosphate, etc. 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.

The deodorizing solution according to the present invention preferably contains 5 to 30% by weight of the above-mentioned calcium phosphate compound. If it is less than 5% by weight, a sufficient deodorizing effect may not be achieved, and if it exceeds 30% by weight, the white color of calcium phosphate will remain strongly on the jetted portion.

As the dispersion medium for the calcium phosphate compound in the deodorizing solution of the present invention, alcohols such as methanol, ethanol and isopropanol can be used. Also, the alcohol used is
It does not necessarily have to 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 anionic, nonionic and amphoteric surfactants can be used.
Examples of the anionic surfactant include carboxylate salt, sulfonate salt, sulfate ester salt, phosphate ester salt, and phosphonate salt. Further, the nonionic surfactants include fatty acid monoglycerin esters, fatty acid sorbitan esters, fatty acid polyglycerin esters, fatty acid alkanolamides, and the like, and further amphoteric surfactants include betaine, sulfobetaine, sulfate betaine and the like. Be done.

Of the surfactants, those having a deodorizing effect are preferably used because the deodorizing effect is further improved. Examples of the surfactant having a deodorizing action include alkylaminocarboxylic acid type amphoteric surfactants, alkylcarboxybetaine type amphoteric surfactants, higher alkyldicarboxylic acid type anionic surfactants, fatty acid monoethanolamide type nonionic surfactants. Other examples include glycerin monostearate, polyethylene glycol dilaurate, oxyfinoline sunsulfate, 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 this amount is less than 1% by weight, the calcium phosphate-based compound cannot be sufficiently dispersed, and if it exceeds 10% by weight, for example, when sprayed onto socks, the evaporation is slowed, which causes discomfort.

If desired, a fragrance can be added to the deodorizing liquid of the present invention.

In the deodorizing solution of the present invention, fine calcium phosphate-based compound powder is well dispersed, so if it is filled in a spray container together with a propellant, it can be used as a deodorizing spray without causing clogging of the injection nozzle. You can

The deodorizing spray of the present invention preferably contains 5 to 50% by weight of the deodorizing liquid of the present invention as described above. If 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 decreases, and effective injection cannot be achieved.

The propellant may be LP gas or LP.
A mixture of gas and dimethyl ether can be used.

[0018]

EXAMPLES The present invention will be described in more detail based on the following examples, but the invention is not intended to be 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 as a surfactant having a deodorizing effect. 7 parts and 0.3 part of the fragrance were mixed by stirring to prepare a deodorizing liquid.

First, 30 g of the above deodorizing liquid was put into a tank body made of polyacrylonitrile resin, the tank was welded, and LP gas of 70 g 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 solution, 5.0 parts of tricalcium phosphate having an average particle size of 20 μm and a Ca / P ratio of 1.5, 90 parts of denatured alcohol,
As a surfactant having a deodorizing effect, 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 emulsion deodorizing liquid was put into a tank body made of polyacrylonitrile resin, and then the tank was welded and filled with 42 g of LP gas and 18 g of dimethyl ether 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 size 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 as a surfactant having a deodorizing effect. 9 parts and a perfume of 0.1 part were mixed by stirring to prepare an emulsion deodorizing solution.

First, 30 g of the above emulsion deodorizing liquid was put into a steel tank body, and then the tank was welded, and LP gas 70 g was filled 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 as in Example 1 except that hydroxyapatite was omitted, and Example 1 was prepared using this deodorizing solution.
Create a spray in the same manner as in, evaluate its performance,
The results are shown in Table 1.

Comparative Example 2 The same deodorizing solution was prepared as in Example 3 except that the alkylaminocarboxylic acid type surfactant was omitted, 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 spray performance was evaluated by the following test method. Deodorizing ability 5 using a detector tube method with a 5 liter Tedlar bag
It was measured after a minute. The original odor concentration was 25 ppm for ammonia and 30 ppm for methyl mercaptan. Evaluation is a deodorizing rate of 8
It is shown as 0% or more.

Antibacterial property After spraying onto a filter paper (18 mm × 18 mm) for 2 seconds from a spray, 0.2 ml of a bacterial solution containing staphylococcus was uniformly inoculated on the filter paper, and after culturing at 35 ° C. for 18 hours without drying,
After adding 20 ml of sterilized physiological saline to disperse viable bacteria in the liquid, the viable cell count of the liquid was measured by a plate culture method. The evaluation was performed according to the following criteria. : Less than 0.05% of control (sterile filter paper) X: 0.05% or more of control (sterile filter paper)

Adsorption of virus The virus was suspended in a liquid, and the liquid obtained by passing this stock solution and the filter prepared in each Example through a filter paper sprayed for 2 seconds was used as a test liquid, and a titer (ti) was obtained by a chicken hemagglutination reaction.
ter) was evaluated. The evaluation was performed based on the following criteria. : The titers differed by two or more steps. X: The difference in titer is one stage or less.

Sedimentation Phenomenon: The spray was shaken well, allowed to stand, and observed after 30 minutes. The evaluation was performed based on the following criteria. : Suspension continued. X: Separated and settled.

[0031]

[Table 1]

[0032]

EFFECTS OF THE INVENTION Since the deodorizing solution and deodorizing spray of the present invention contain a calcium phosphate compound as a deodorizing component, it exhibits an adsorbing action also on basic substances such as ammonia and can adsorb a wide range of malodorous components. It can be applied to a place that emits a bad odor, such as a kitchen, a garbage collection place, garbage, a toilet, etc., to deodorize. Moreover, since the calcium phosphate-based compound, which is a solid deodorizing component, remains even after the dispersion medium is evaporated after being applied to the place where a bad odor is generated, the deodorizing effect lasts for a long time. Further, since it is not harmful to the body, it can be applied to the human body such as feet and armpits. Further, since the deodorizing liquid and deodorizing spray of the present invention are odorless, they may be used as they are, or may be used after adding various flavors.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumie Yasukawa 2-36-9 Maenocho, Itabashi-ku, Tokyo Asahi Gaku Gakuin Kogyo Co., Ltd.

Claims (7)

[Claims] 1. A deodorizing liquid comprising 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 and an alcohol. 2. The deodorizing solution according to claim 1, wherein the deodorizing solution contains 1 to 30% by weight of calcium phosphate compound powder. 3. The deodorizing solution according to claim 1, wherein the deodorizing solution contains a surfactant in an amount of 1 to 10% by weight. 4. The deodorizing liquid according to claim 1, wherein the surfactant has a deodorizing action. 5. A deodorizing spray comprising the deodorizing liquid according to any one of claims 1 to 4 and a propellant. 6. The deodorizing spray according to claim 5, which contains 5 to 50% by weight of a deodorizing liquid. 7. The deodorizing spray according to claim 5, wherein the propellant is LP gas or a mixture of LP gas and dimethyl ether.