JP2019122443A - Deodorant of chlorine cleaning agent and cleaning method - Google Patents

Abstract

To deodorize a chlorine odor without using a flavor or an aromatic material.SOLUTION: A deodorant according to one embodiment has (A) inorganic acid or organic acid and (B) water and has a pH of 7.1 or more.SELECTED DRAWING: None

Description

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

  Chlorine-based cleaning agents are widely used in cleaning (cleaning) of kitchens, bathrooms, toilets, rooms or the like. Chlorine-based detergents are effective for removing molds or bleaching objects, but have the problem that after washing, a unique residual odor (so-called chlorine odor) is generated. Since the chlorine odor causes many people to feel unpleasant, removal of the chlorine odor is desired.

  As a method of coping with chlorine odor, a method of imparting another odor using a perfume or an aromatic substance to make it difficult to feel the chlorine odor is known. For example, Patent Document 1 describes a deodorant composition to which an aromatic substance is added in order to suppress chlorine odor.

JP-A-8-10314

  In recent years, compositions that do not contain perfumes or fragrances may be required. However, Patent Document 1 only makes it difficult to feel a chlorine smell due to the aromatic substance, and it has been difficult to obtain the deodorizing effect of the chlorine odor without a flavor or an aromatic substance.

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

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

  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 to 8.5.

  The present invention also provides a cleaning method comprising the steps of: washing an object with a chlorine-based cleaning agent; and deodorizing the object with the deodorizer described in any of the above after the washing. .

  Furthermore, the present invention comprises the steps of mixing a chlorine-based detergent and the deodorant according to any one of claims 1 to 7 to obtain a mixed solution, and washing the object using the mixed solution. And providing a cleaning method.

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

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

As the component (A), an organic acid is preferable to an inorganic acid. As an organic acid, a carboxylic acid or a sulfonic acid is preferable, for example. As the carboxylic acid, for example, benzoic acid, malic acid, citric acid, ethylenediaminetetraacetic acid (so-called EDTA), or glycol ether diamine tetraacetic acid (so-called EGTA) is used. Among these, preferred are carboxylic acids having 2 or 4 valences. 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. It is preferable that the density | concentration of (A) component is 100 mM or less from a viewpoint of suppressing the damage of the target of cleaning.

As the component (C), for example, trishydroxymethylaminomethane is used. In addition, this deodorizer does not need to have (C) component.

  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. Furthermore, the deodorant contains a buffer and preferably has a buffer action.

2. EXAMPLES The inventors of the present application prepared the deodorant according to one embodiment. Furthermore, the inventors sprayed the adjusted deodorant into the air in the room, 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. As component (A), hydrochloric acid (an example of inorganic acid; experimental example 1), benzoic acid (an example of monovalent carboxylic acid. Experimental example 2), malic acid (an example of divalent carboxylic acid. Experimental example 3), citric acid An acid (an example of a trivalent carboxylic acid; experimental example 4) and ethylenediaminetetraacetic acid (an example of a tetravalent carboxylic acid; experimental examples 5 and 6) were used. The component (A) was adjusted to a concentration of 1 mM.

  Next, an alkaline solution was added to the aqueous solution. NaOH was used as the alkaline solution. The alkaline solution was added until pH 8.0. In some samples (Experimental Example 6), buffer was added. As a buffer solution, trishydroxymethylaminomethane was used. Tris-hydroxymethylaminomethane was added to be 10 mM.

The composition of each sample (Experimental Examples 1 to 6) is as follows. Other than the components listed in the following table are not included.

The sensory test for confirming the deodorizing effect was done using the deodorizer of Experimental example 1-7. The test method is as follows. First, spray a detergent containing chlorine (chlorinated detergent) on the plastic surface. Thereafter, the deodorant of each of Experimental Examples 1 to 7 is sprayed. Ten panelists assess the odor after spraying. The odor is evaluated in the following five steps.
1: No change (with chlorine smell)
2: I feel that the chlorine smell has been reduced.
3: The chlorine smell is reduced, but the chlorine smell still remains.
4: It can be understood that the chlorine smell has disappeared but it is not complete (some chlorine smell remains).
5: The chlorine smell 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 result of the sensory test.

The odor level was scored (Level 1: 1 points, Level 5: 5 points), and the average value of the evaluation results by 10 test members was described as an average score. According to this result, the deodorant (Experimental Example 6) to which the buffer solution of component (C) was added using ethylenediaminetetraacetic acid as component (A) had the highest deodorizing effect. Then, in the sample to which the buffer solution was not added, the deodorizing effect of the sample (Experimental Example 2) using benzoic acid as the component (A) and the sample (Experimental Example 5) using ethylenediaminetetraacetic acid was high. As compared with the sample (Experimental Example 1) using the inorganic acid, the deodorizing effect was higher in the samples (Experimental Examples 2 to 6) using the organic acid. In addition, it was confirmed that there is a deodorizing effect also in the sample (experimental example 1) which used the inorganic acid compared with the simple hydrochloric acid (experimental example 7).

3. Application Example The deodorant according to the present embodiment can be used, for example, for deodorizing after indoor cleaning. In one example, the cleaning worker cleans (or cleans) the object with a chlorine-based detergent. The object is, for example, a bath, a toilet, a kitchen, or an inner wall of a room, a ceiling, a floor, or other fittings. After cleaning with a chlorine detergent, the cleaning worker sprays the deodorant according to the present embodiment. After spraying the deodorant, the cleaner wipes the object to remove the deodorant (and the detergent). Alternatively, the cleaning worker mixes the chlorine detergent and the deodorant according to the present embodiment to obtain a mixed liquid. The cleaning worker cleans (and deodorizes) the object using the liquid mixture.

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

Claims (9)

(A) an inorganic acid or an organic acid,
(B) contains water and
Deodorant with a pH of 7.1 or higher. The deodorizer according to claim 1, wherein the component (A) is an organic acid. The deodorizer according to claim 2, wherein the component (A) is a carboxylic acid. The deodorizer according to claim 3, wherein the component (A) is a divalent or tetravalent carboxylic acid. The deodorizer according to any one of claims 1 to 4, further comprising (C) a buffer. The deodorizer according to claim 5, wherein the component (C) is trishydroxymethylaminomethane. The deodorizer according to any one of claims 1 to 5, which has a pH of 7.5 to 8.5. Washing the object with a chlorine detergent;
Deodorizing the said object by the deodorizer as described in any one of Claims 1 thru | or 7 after said washing | cleaning. Mixing the chlorine-based detergent and the deodorant according to any one of claims 1 to 7 to obtain a mixed solution;
Cleaning the object using the liquid mixture.