JPH07124469A - Deodorant and deodorizing implement - Google Patents

Abstract

PURPOSE:To produce a superior deodorizing effect to a low concn. malodor by the synergistic effect of deodorization by physical adsorption on activated carbon and a chemical reaction with an extract extracted from tea leaves by hot water. CONSTITUTION:An extract extracted from tea leaves by hot water is stuck to activated carbon to obtain the objective deodorant. This deodorant is housed in a vessel with air holes formed from paper contg. fibers of tea leaves to obtain the objective deodorizing implement.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant and a deodorizer, and more particularly to a deodorant and a deodorizer which are stored in a refrigerator, a freezer or the like to deodorize a bad odor in the atmosphere.

[0002]

2. Description of the Related Art Conventionally, it has been known to arrange a deodorizing tool in order to remove a bad odor in a refrigerator or a freezer. As this deodorizer, there is a deodorant such as activated carbon stored in a plastic container with a vent, and a part of the surface of the deodorant comes into contact with a bad odor in the refrigerator through the vent to deodorize. To do.

Further, in order to improve the deodorizing effect, impregnated carbon in which an alkali is impregnated with an acidic malodorous substance and an acid is impregnated with an activated malodorous substance is known. These impregnated coals remove odors through adsorption and chemical neutralization reactions.

[0004]

However, in the case of the conventional deodorizing tool, since the deodorant comes into contact with the bad odor through the vent hole of the container, the surface of the deodorant which comes into contact with the odor is limited to only a part. I will end up. Therefore, the deodorizing speed is slow and a sufficient deodorizing effect cannot be obtained for a relatively low-concentration malodor such as in a refrigerator. Further, there are many types of malodors in the refrigerator, such as ammonia type, hydrogen sulfide type, aldehyde type, etc., and even if the above-mentioned impregnated carbon is used, a deodorant having a deodorizing effect on all of these malodors is Not invented yet. Therefore, there has been a demand for the development of a deodorizing agent that can exert deodorizing effect on all bad odors in the refrigerator and has sufficient deodorizing effect even on low-concentration bad odors.

[0005]

Therefore, the present inventor can exert a deodorizing effect on any malodor in the refrigerator,
Moreover, as a result of intensive studies on an attachment substance having a sufficient deodorizing effect even for a low-concentration malodor, it was found that tea is effective and the present invention was completed.

Tea is a plant belonging to the Camellia family, and it has long been known that it has a deodorizing effect such as blocking bad breath. Further, a deodorant using an extract of theaceae plant (Japanese Patent Publication No. Sho 180-18098) and a deodorant containing a dry distillation fraction of tea as an active ingredient (Japanese Patent Publication No. 61-8694) are known.

[0007] The hot water extract of tea contains a large number of components such as flavonoids, polyphenols such as catechin, and deodorizing effect due to acidity or reducibility such as organic acid (tannic acid). However, the tea leaves themselves contain other deodorant components, for example, chlorophyll and other deodorant components that do not elute in hot water, and a deodorizing tool that can utilize all of these deodorant components was found.

That is, the present invention provides a deodorant obtained by impregnating a hot water extract of tea on activated carbon.

The present invention also provides a deodorizing tool in which the above deodorizing agent is contained in a container having a vent formed of a paper mixed with tea fibers.

The tea used in the present invention may be a so-called tea, which is a plant belonging to the Camellia family, and mate tea, oolong tea, black tea, green tea and the like can be used, but green tea is particularly preferable.

The hot water extract of tea used in the present invention is extracted by a conventionally known method such as extraction in which tea leaves are simply put in hot water, or extraction by reflux using a Soxhlet extractor.

As a method of impregnating the hot water extract of tea on the activated carbon, a conventionally known method can be used. For example, it can be attached by a method such as spraying or dipping.

As the tea fiber mixed in the paper container, dry tea leaves may be mixed as they are, but it is preferable to dry and mix the tea leaves after hot water extraction from the viewpoint of economy and cost. .

[0014]

[Effect] The deodorant of the present invention has a lower concentration of malodor than the conventional deodorant using non-impregnated activated carbon due to the synergistic effect of the physical adsorption of activated carbon and the chemical reaction of the hot water extract of tea. Excellent in deodorizing effect against. Further, the deodorant of the present invention is not only deodorized by adsorption and chemical neutralization reaction as in the case of conventional impregnated carbon, but also by impregnating hot water extract of acidic or reducing tea with activated carbon to produce hydrogen sulfide. Not to mention, it exhibits an excellent deodorizing effect against all bad odors in the refrigerator such as ammonia, trimethylamine, methyl mercaptan and acetaldehyde.

Further, by using the deodorizing tool of the present invention, the deodorizing speed is remarkably improved as compared with the conventional deodorizing agent using only unimpregnated activated carbon. Further, since the deodorizing tool of the present invention is made of a material that burns, it can be easily disposed of as garbage that burns after use and is environmentally friendly.

[0016]

EXAMPLES Next, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples.

(Preparation of Sample) Sample 1 was prepared by placing 100 g of unattached activated carbon in a plastic container having a vent. Sample 2 was prepared by putting 100 g of impregnated carbon impregnated with hydrochloric acid in a plastic container having a vent. Sample 3 was prepared by putting 100 g of the deodorant of the present invention in a plastic container having a vent. Sample 4 was prepared by placing 100 g of the deodorant of the present invention in a container having a vent formed by a paper mixed with tea fibers.

(Example 1) A certain amount of ammonia gas as a malodorous gas was injected into a closed glass container having a length of 50 cm, a width of 50 cm and a height of 50 cm (about 125 liters), and the above sample was placed in the center of the closed glass container. Were arranged respectively.
Immediately after the sample was placed, 30 minutes later, 60 minutes later, and 90 minutes later, the concentration of the malodorous gas was measured by the detector tube method. The results are shown in Table 1.

[0018]

[Table 1]

(Example 2) Hydrogen sulfide was used as a malodorous substance and the malodorous gas concentration was measured in the same manner as in Example 1. The results are shown in Table 2.

[0020]

[Table 2]

(Example 3) Acetaldehyde was used as a malodorous substance, and the malodorous gas concentration was measured in the same manner as in Example 1. The results are shown in Table 3.

[0022]

[Table 3]

As is clear from the results of Table 1, Table 2 and Table 3, the deodorant of the present invention has an excellent deodorizing effect even for low concentration odors. Further, the deodorizing speed of the present invention is remarkably improved by using the deodorizing tool of the present invention. The deodorizing agent and deodorizing tool of the present invention have an excellent deodorizing effect against the bad odors of ammonia, hydrogen sulfide, and acetaldehyde in a refrigerator.

Claims (2)

[Claims] 1. A deodorant obtained by impregnating activated carbon with a hot water extract of tea. 2. A deodorizing tool in which the deodorizing agent according to claim 1 is contained in a container having a ventilation port formed from paper in which tea fibers are mixed.