JP6781866B2 - Deodorant and cleaning method for chlorine odor in residual scent of chlorine-based cleaning agent - Google Patents

Description

The present invention relates to a deodorant and a cleaning method.

Chlorine-based cleaning agents are widely used in cleaning (cleaning) kitchens, bathrooms, toilets, rooms, and the like. Chlorine-based cleaning agents are effective for removing mold or bleaching objects, but on the other hand, there is a problem that a unique residual scent (so-called chlorine odor) is generated after cleaning. Since the chlorine odor causes discomfort to many people, it is desired to remove the chlorine odor.

As a method of coping with chlorine odor, a method of giving another scent by using a fragrance or an aromatic substance to make the chlorine odor less noticeable is known. For example, Patent Document 1 describes a deodorizing composition to which an aromatic substance is added in order to suppress a chlorine odor.

Japanese Unexamined Patent Publication No. 8-10314

In recent years, a composition containing no fragrance or aromatic substance may be required. However, Patent Document 1 merely makes it difficult for the chlorine odor to be perceived by the aromatic substance, and it is difficult to obtain the deodorizing effect of the chlorine odor without the fragrance or the aromatic substance.

On the other hand, the present invention provides a technique capable of deodorizing a chlorine odor regardless of a fragrance or an aromatic substance.

The present invention provides a deodorant containing (A) an inorganic acid or an organic acid and (B) water and having a pH of 7.1 or higher.

The component (A) may be an organic acid.

The component (A) may be a carboxylic acid.

The component (A) may be a divalent or tetravalent carboxylic acid.

This deodorant may further contain (C) a buffer.

The component (C) may be trishydroxymethylaminomethane.

The pH may be 7.5-8.5.

The present invention also provides a cleaning method including a step of cleaning the object with a chlorine-based cleaning agent and a step of deodorizing the object with the deodorant according to any one of the above after the cleaning. ..

Further, the present invention comprises a step of mixing a chlorine-based cleaning agent and the deodorant according to any one of claims 1 to 7 to obtain a mixed solution, and a step of cleaning an object using the mixed solution. To provide a cleaning method having and.

According to the present invention, the chlorine odor can be deodorized regardless of the fragrance or aromatic substance.

1. 1. Overview The deodorant according to one embodiment includes (A) an inorganic acid or an organic acid, (B) water, and (C) a buffer. This deodorant is a composition for deodorizing chlorine odor. The deodorant according to this embodiment does not contain a fragrance or an aromatic substance.

As the component (A), an organic acid is preferable to an inorganic acid. As the organic acid, for example, a carboxylic acid or a sulfonic acid is preferable. As the carboxylic acid, for example, benzoic acid, malic acid, citric acid, ethylenediaminetetraacetic acid (so-called EDTA), or glycol ether diaminetetraacetic acid (so-called EGTA) is used. Of these, the carboxylic acid is preferably divalent or tetravalent. The concentration of the component (A) is preferably 0.1 mM or more and 5 M or less. From the viewpoint of obtaining a high deodorizing effect, the concentration of the component (A) is preferably 1 mM or more. From the viewpoint of suppressing damage to the object to be cleaned, the concentration of the component (A) is preferably 100 mM or less.

As the component (C), for example, trishydroxymethylaminomethane is used. It should be noted that this deodorant does not have to have the component (C).

The pH of this deodorant is adjusted to the alkaline side (> 7.0). The pH is preferably 7.1 to 13, and more preferably around 8.0 (7.5 to 8.4) from the viewpoint of safety and ease of adjustment. Further, this deodorant preferably contains a buffer and has a buffering action.

2. Examples The inventors of the present application have prepared a deodorant according to an embodiment. Furthermore, the inventors sprayed the prepared deodorant into the air indoors and evaluated the odor after spraying using a sensory test by 10 testers.

The deodorant was adjusted as follows. First, the component (A) was added to water. The components (A) include hydrochloric acid (an example of an inorganic acid, Experimental Example 1), benzoic acid (an example of a monovalent carboxylic acid, Experimental Example 2), malic acid (an example of a divalent carboxylic acid, Experimental Example 3), and citrus. Acids (an example of a trivalent carboxylic acid; Experimental Example 4) and ethylenediamine tetraacetic acid (an example of a tetravalent carboxylic acid; Experimental Examples 5 and 6) were used. The component (A) was adjusted so that the concentration was 1 mM.

Next, an alkaline solution was added to this aqueous solution. NaOH was used as the alkaline solution. The alkaline solution was added until the pH was 8.0. For some samples (Experimental Example 6), buffer was added. Trishydroxymethylaminomethane was used as the buffer solution. Trishydroxymethylaminomethane was added to 10 mM.

The composition of each sample (Experimental Examples 1 to 6) is as follows. It does not contain any ingredients other than those listed in the table below.

A sensory test was conducted to confirm the deodorizing effect using the deodorants of Experimental Examples 1 to 7. The test method is as follows. First, a chlorine-containing detergent (chlorine-based detergent) is sprayed onto the plastic surface. Then, each deodorant of Experimental Examples 1 to 7 is sprayed. Ten examiners evaluate the odor after spraying. The odor is evaluated on the following five stages.
1: No change (with chlorine odor)
2: I feel that the chlorine odor has been reduced.
3: The chlorine odor has been reduced, but the chlorine odor still remains.
4: It can be seen that the chlorine odor has disappeared, but it is not complete (a slight chlorine odor remains).
5: The chlorine odor completely disappeared.

なお、臭いのレベルを点数化（レベル１：１点、レベル５：５点）し、１０人の試験員による評価結果の平均値を平均スコアとして記載した。この結果によれば、（Ａ）成分としてエチレンジアミン四酢酸を用い、（Ｃ）成分の緩衝液が添加された消臭剤（実験例６）が最も消臭効果が高かった。次いで、緩衝液が添加されていない試料において、（Ａ）成分として安息香酸を用いた試料（実験例２）及びエチレンジアミン四酢酸を用いた試料（実験例５）の消臭効果が高かった。無機酸を用いた試料（実験例１）と比較すると、有機酸を用いた試料（実験例２〜６）の方が消臭効果は高かった。なお単なる塩酸（実験例７）と比較すると、無機酸を用いた試料（実験例１）においても消臭効果があることが確認された。 Table 2 shows the results of the sensory test.

The odor level was scored (level 1: 1 point, level 5: 5 point), and the average value of the evaluation results by 10 examiners was described as the average score. According to this result, the deodorant (Experimental Example 6) in which ethylenediaminetetraacetic acid was used as the component (A) and the buffer solution of the component (C) was added had the highest deodorizing effect. Next, in the sample to which the buffer solution was not added, the deodorizing effect of the sample using benzoic acid as the component (A) (Experimental Example 2) and the sample using ethylenediaminetetraacetic acid (Experimental Example 5) was high. Compared with the sample using an inorganic acid (Experimental Example 1), the sample using an organic acid (Experimental Examples 2 to 6) had a higher deodorizing effect. It was confirmed that the sample using an inorganic acid (Experimental Example 1) also had a deodorizing effect as compared with simple hydrochloric acid (Experimental Example 7).

3. 3. Application example The deodorant according to the present embodiment can be used, for example, for deodorizing after cleaning the room. In one example, a cleaning worker cleans (or cleans) an object with a chlorine-based detergent. Objects are, for example, baths, toilets, kitchens, or room interior walls, ceilings, floors, or other fittings. After cleaning with a chlorine-based detergent, the cleaning worker sprays the deodorant according to the present embodiment. After spraying the deodorant, the cleaning worker wipes the object and removes the deodorant (and detergent). Alternatively, the cleaning worker mixes the chlorine-based detergent and the deodorant according to the present embodiment to obtain a mixed solution. The cleaning worker cleans (and deodorizes) the object using this mixed solution.

According to this embodiment, the odor of the chlorine-based detergent can be removed regardless of the fragrance (or fragrance).

Claims (3)

(A) With benzoic acid or ethylenediaminetetraacetic acid,
(B) With water
(C) Contains trishydroxymethylaminomethane as a buffer ,
The pH is 7.5-8.5 and
A deodorant for chlorine odor in the residual scent of chlorine-based cleaning agents that do not contain pigments. The process of cleaning the object with a chlorine-based cleaning agent,
Wherein After washing, cleaning method and a step of deodorizing said object in deodorant according to claim 1. A step of mixing a chlorine-based cleaning agent and the deodorant according to claim 1 to obtain a mixed solution, and
A cleaning method including a step of cleaning an object using the mixed solution.