JPS63161970A - Deodorant composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deodorant composition, and particularly to a deodorant composition that is intended for humid lockers, shoe cabinets, closets, etc. and has an anti-mold effect.

With the urbanization and diversification of everyday life, people are becoming increasingly concerned about the smells around them, and in particular, bad odors are being criticized more harshly. The following methods are generally known as methods for treating bad odors.

■Sensory deodorization...masking with perfume ■Physical deodorization...adsorption with activated carbon, etc. Absorption and inclusion by cyclodextrin.

■Chemical deodorization...neutralization with acids and alkalis.

Oxidation, oxidation by reducing agents, reduction, lauryl methacrylate Addition by rate etc.

■Biological deodorization: Deodorization due to the bactericidal action of disinfectants and the effect of microorganisms or enzymes.

However, sensory deodorization (2) is a method that changes the quality of the bad odor using a fragrance, and the bad odor itself exists, and if the balance with the fragrance is lost, the person may even feel disgusted.

Physical deodorization (2) merely adsorbs or absorbs and clathrates bad odors, and is only a temporary method of use until saturation is reached.

■Chemical deodorization has some safety issues, and while it is effective against a single bad odor, it is ineffective against the complex odors of today's daily life. Impossible.

Biological deodorization (2) has shortcomings in terms of speed and sustainability, and a single deodorization method alone is not sufficient.

Regarding the deodorizing effect of iron salts, divalent iron salts or trivalent iron salts are known (Japanese Patent Application Laid-open No. 156539/1983,
No. 9-146578). In particular, divalent iron salts are known to have a deodorizing effect on basic malodors such as ammonia, but their deodorizing power against hydrogen sulfide, mercaptans, etc. is not sufficient.

It has also been reported that metal phthalocyanine is used as a deodorant, and the use of iron as the metal has also been suggested (Japanese Patent Laid-Open No. 61-232856).

However, although metal phthalocyanine has an excellent long-lasting deodorizing effect, there is a problem in that the deodorizing effect is rather slow.

An object of the present invention is to provide a deodorizing agent that is highly safe and effective against various bad odors, and also suppresses the growth of mold.

The deodorant composition of the present invention is characterized by containing a ferrate-impregnated body in which a clay mineral containing a polyvalent metal cation is impregnated with a ferrate, and a moisture absorbent.

The present invention will be explained in more detail below.

For example, if the iron(VI) salt is a potassium salt,
It is expressed as F e O, and has strong oxidizing power, and
After decomposition, it becomes harmless iron hydroxide.

It has interesting properties such as low cost.

However, due to its unusual instability, it has been difficult to utilize it on an industrial scale. Furthermore, the use as an active ingredient in deodorants has not been considered.

The present invention stabilizes this ferrate by impregnating it into clay minerals, utilizes the oxidizing power of the ferrate as a deodorizing agent, and further adds a moisture absorbent to provide anti-mold effect and odor. This deodorizer eliminates the cause of odor and makes it suitable for use in humid places such as closets.

Examples of the salt in the ferrate include alkali metals such as Li, Na, and alkaline earth metals such as Mg and Ca, but are not particularly limited thereto.

Ferrates are prepared in conventional manner, for example by oxidation in the presence of strong alkalis.

Clay minerals impregnated with ferrate include Mg, Ca, and F.
Those containing polyvalent metal cations such as e, Zn, Mn, AQ, and Ti are used. Specific examples of such clay minerals include talc, montmorillonite, sabonite, hectorite, vermiculite, margarite, and kaolinite.

Typical examples include antibolite and sepiolite.
It is not limited to this.

Impregnation of ferrate into clay minerals can be carried out by a conventional method. For example, clay minerals are added to an aqueous solution of ferrates, soaked for 9 hours, then dried, or impregnated with ferrates into clay minerals. Just spray an aqueous solution. The particle size of the impregnated clay mineral is adjusted as necessary.

Since this ferrate-impregnated body is stabilized without losing the oxidizing power of ferrate, it can be effectively used as a highly safe deodorizing ingredient by taking advantage of the characteristics of ferrate.

The amount of ferrate impregnated is not particularly limited, but clay mineral 100
Approximately 0.1 to 20% by weight based on the weight part is suitable.

The deodorizing mechanism of ferrate is not clear, but it is thought to be due to the oxidation and reduction effects caused by the reaction of hexavalent iron ions as follows.

Fe O4”-+ 8 H”+ 3 e→Fe”+4
H, OF a 04”-+ 2 Hz O+ 3 e-
4F a (OH) a + 50 H'''' Ferrate is highly safe and exhibits excellent effects on various types of bad odors, making it preferable as a deodorizing ingredient. This makes it possible to effectively suppress the growth of mold. This effect cannot be achieved individually, but only by combining the two.

As the moisture absorbent, calcium chloride and super absorbent polymers having water absorbing properties are preferred. Specific examples of superabsorbent polymers include salts of isobutylene/maleic anhydride copolymers, starch/acrylic acid graft polymers, polysodium acrylate crosslinkers, and polyvinyl alcohol/acrylic acid salt graft polymers. Examples include a saponified product of a copolymer of vinyl ester/ethylenically unsaturated carboxylic acid or its derivative.

According to the present invention, by combining the ferrate-impregnated body and the moisture absorbent, these act mutually, exhibiting an excellent deodorizing effect against various bad odors, and also preventing the growth of mold. It is particularly suitable as a deodorizer in humid places such as lockers, shoe cabinets, and closets.

Examples 1 to 3 38.5 g of a 13% aqueous sodium hypochlorite solution and 30.8 g of an 85% aqueous potassium hydroxide solution were mixed at 30°C or lower, and while stirring under water cooling, 10.5 g of a 67% aqueous ferric nitrate solution was mixed. 8g
was added to synthesize potassium ferrate (VI) to obtain a ferrate-containing solution. Add 100g of sepiolite to this aqueous solution and impregnate it, dry with hot air to remove water up to 130g, and
The product was molded into 10 meshes and dried to obtain a ferrate-impregnated product A.

This ferrate-impregnated body A and a moisture absorbent were blended as follows to obtain deodorant compositions of Examples 1 to 3.

Example 1: Ferrate-impregnated body A 80 parts by weight Sodium polyacrylate 20 parts by weight (Sumikagel F-33, manufactured by Sumitomo Chemical) Example 2: Ferrate-impregnated body A 60 parts by weight Sodium polyacrylate 40 parts by weight (Sumikagel F-33, manufactured by Sumitomo Chemical) Example 3: Ferrate-impregnated body A 60 parts by weight Isobutylene/maleic anhydride copolymer 40 parts by weight (KI gel:
-201, manufactured by Clareisoprene Chemical) Examples 4 to 5 Deodorants were produced in the same manner as in Example 1, except that ferrate-impregnated body B was produced by impregnating montmorillonite instead of sepiolite.

Example 4: Ferrate impregnated body 8 60 parts by weight isobutylene/
40 parts by weight of maleic anhydride copolymer (KI gel: KI-
201, manufactured by Clarei Soprene Chemical) Example 5 Ferrite-impregnated body 8 80 parts by weight Calcium chloride 20 parts by weight or more Each of the deodorants prepared in the above manner was tested for antifungal effect. Put 5 g of deodorizer in the bottom of a 6Q desiccator, add one piece of rice cake and one piece of bread, and leave it in a constant temperature room at 30°C to visually judge the condition of the rice cake and bread. The results are shown in Table 1. Ta.

Here, as a comparative example, the component of the present invention was used alone (5 g).

Comparative Example 1: Ferrite-impregnated body of Example 1 Comparative Example 2: Sodium polyacrylate of Example 1 (blank below) In addition, in Examples 1 to 5, no off-odor was observed. In Comparative Examples 1 and 2, a strange odor occurred.

The samples of Example 1 and Comparative Example 1 were subjected to a one-month actual usage test on 20 people who were concerned about mold growing on their shoes in the shoe closet.

The results shown in Table 2 were obtained.

Margin below C) Table-2 Furthermore, according to the test method for deodorizing effect described below.

The deodorant of the example was tested and the results are shown in Table-3.

As shown in FIG. 1, a screen 11 is erected and a nose pad 13 for a scent bag is provided in front of the screen. A 1.80 mayonnaise bottle 17 is placed on the back side of the screen 11 and communicated with the nose pad 13 through a soft plastic pipe 15.

1.In order to make the surface area of Ig deodorant 18 to be about the same in the 8Q mayonnaise bottle 17, the lid of the standard bottle (φ4a
1) Place it in the container and seal it with a polyethylene stopper equipped with a gas inlet.

Inject malodor to a specified concentration through the gas inlet.

Initial setting concentration 250ppm: Ammonia 10ppm
:Hydrogen sulfide Lpp@nitrimethylamine, ethyl mercaptan Stored at room temperature, after 6 hours, syringe 19 as shown in the above figure.
By standing vertically and letting the piston fall naturally, the air in the mayonnaise bottle 17 is expelled at a constant speed, and the
The odor was evaluated by a panel of people based on the following criteria, the top and bottom were cut, and the average of the three people was taken.

Evaluation criteria

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a test method for deodorizing effect. 13...Nose pad 18...Deodorant 19...
Syringe

Claims (1)

[Claims] 1. A deodorant composition comprising a ferrate-impregnated body in which a clay mineral containing a polyvalent metal cation is impregnated with a ferrate, and a moisture absorbent.