JPH09140779A - Deodorant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to maintain a deodorization effect even near the end of the period of validity and further to set the short period of validity by composing the deodorant of water-absorptive resins which are made into spherical bodies by moisture absorption and a deodorizing liquid. SOLUTION: Thic deodorant 1 is formed by incorporating the water-absorptive resins 2 which are made into the spherical bodies by moisture absorption, for example, a polyacrylate-ethylene copolymer and the deodorizing liquid therein. Plant extracts such as bamboo grass extracts and paddy extracts, are used for the deodorizing liquid. An amphoteric surfactant is incorporated into these mixtures. The water-absorptive resins 2 in the initial state of the deodorant contain water exceeding about 100 times its own weight and, in this state, the respective particles cannot maintain the spherical shape. The deodorant is transparent in the state 1a that the adjacent particles are in tight contact with each other. The respective particles turn to the perfectly spherical shapes 1c by way of the state 1b that slight gaps are created among the particles along with moisture evaporation. The deodorant 1 is made turbid by the irregular reflection of the particles in this state and the period of its validity is terminated. The evaporation rate of the water is made faster than the gelatinuous deodorant and the period of validity is made shorter.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a household toilet,
Deodorant used in clogs, lockers, refrigerators, etc.

[0002]

2. Description of the Related Art Conventional deodorants include solid types such as activated carbon, activated carbon fiber and enzyme preparations. Since this solid type deodorant does not emit fragrance or change its shape, it has a drawback that it is difficult to identify the end point of the life of the deodorizing function.

Therefore, as a solution to this drawback, a liquid type in which plant extract, water-soluble polymer, chlorine dioxide water, etc. are used as active ingredients and these active ingredients are made into an aqueous solution is used. In this liquid type, the water contained therein gradually evaporates and the volume decreases, so that the end point of the life can be determined by the volume.

As this liquid type, for example, in Japanese Patent Laid-Open No. 56-57451, agar or carrageenan is used as a gelling agent, and the water absorption amount thereof is 80 to 1000, which is its own weight.
A hydrogel with double water-absorbent polymer is disclosed. Further, JP-A-60-139255 discloses a deodorant containing a water-retaining agent such as a water-absorbing polymer or a water-absorbing mineral and a desiccant as active ingredients. Also in this latter technique, the active ingredient is gelled using a water-absorbent resin as in the former technique.

[0005]

By the way, in the liquid type described above, gelled ones are used, but the gelled agents have the following problems.

First, when the deodorant is in a gel state, there is a problem that the gelling agent shrinks as the water content evaporates, and the vaporized surface area of the gelling agent decreases, so that the amount of volatilization decreases. Furthermore, this decrease in the amount of volatilization is generally due to the container containing the gelling agent having an opening at the top, and this contraction reduces the distance from the divergence port at the top of the container to the vaporizing surface of the gelling agent. Another factor is that the space inside the container gradually expands.

As described above, there is a problem in that the deodorizing ability is reduced due to the gradual reduction of the volatilization rate, and the initial deodorizing ability cannot be maintained near the end of the effective period of the deodorant.

Further, with this deodorant for hydrous gel, the evaporation rate of water from the gel-like agent is slow, and changes due to evaporation of water cannot be identified without a period of at least 4 months. Therefore, the effective period of the deodorant is set to a long period of at least 4 months. This is a factor that slows down the rotation of the product, which is not preferable.

The present invention has been made in view of these points, and an object of the present invention is to provide a deodorizing agent whose deodorizing ability does not decrease even near the end of its effective period and whose effective period can be set short.

[0010]

In order to achieve the above object, the deodorant of the present invention is characterized by containing a water-absorbing resin which becomes a sphere by absorbing water and a deodorizing liquid. To be

The water absorbent resin is preferably a polyacrylic acid-ethylene copolymer, and the active ingredient of the deodorizing solution is preferably a plant extract such as sasa extract, rice extract and tea extract. It is preferable that these active ingredients contain an amphoteric surfactant.

[0012]

The transparency of the deodorant of the present invention in which the deodorizing liquid is mixed with the water absorbing resin that becomes a sphere by absorbing water changes its transparency depending on the amount of water contained in the water absorbing resin. First, if the amount of water contained in the water absorbent resin exceeds 100 times its own weight, the spherical shape cannot be maintained,
Adjacent particles are brought into close contact with each other, and there is no gap between particles, and the particles become transparent.

Further, water evaporates and its own weight is 80 to 10.
When it becomes about 0 times, a slight gap is created between particles in the upper part on the volatilization side. Due to this gap, diffuse reflection of light occurs, the upper part becomes turbid, and the lower part becomes transparent. keep.

Further, when the weight becomes 80 times or less of its own weight, each particle becomes a perfect spherical shape, and diffuse reflection occurs due to the gaps formed between the particles, so that the whole becomes clouded. As described above, the deodorant of the present application is transparent in the initial state, loses its transparency as the water content of the water absorbent resin 1 decreases with time, gradually becomes cloudy, and eventually becomes cloudy as a whole. The state where the whole is clouded can be the end of the life of the deodorizing function of the deodorizing agent, and the deodorizing agent has an indicator function that can be easily identified.

Further, the volume of the deodorant decreases with time due to evaporation of water, but the height of the deodorant is reduced and the vaporized surface area of the deodorant does not change. Therefore, even if the deodorant is near the end of its life, the deodorizing ability can be maintained in the initial state.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION In the deodorant of the present invention, the spherical water absorbent resin contains a water absorbent resin which becomes a sphere by absorbing water and a deodorant liquid. A polyacrylic acid-ethylene copolymer is used as the water absorbent resin, and plant extracts such as sasa extract, rice extract and tea extract are used as the active ingredient of the deodorizing solution. The amphoteric surfactant is contained in these mixtures.

This spherical water absorbent resin has a property of becoming spherical with a diameter of 0.1 mm to 1 mm when absorbing water. However, this water-absorbent resin can contain up to about 300 times its own weight of water, but if it exceeds 100 times its own weight, the spherical shape cannot be maintained and adjacent particles adhere to each other. It becomes a state.

The deodorant according to the embodiment of the present invention exhibits a change with time as shown in FIG. First, in the initial state, the water-absorbent resin 2 contains more than 100 times its own weight of water, and therefore each particle cannot maintain a spherical shape, and as shown in FIG. Then, the adjacent particles are brought into close contact with each other and there is no gap between the particles, resulting in a state 1a. In this state 1a, the deodorant 1 is transparent.

Then, the water evaporates and its own weight is 80 to 10.
When it becomes about 0 times, as shown in FIG. 1 (b), there is a state 1b in which a slight gap is formed between the particles on the volatilization side of the deodorant (upper part of the deodorant). This is due to the shape-preserving force of the water absorbent resin 2, and each particle has a shape close to a sphere. Due to this gap, diffuse reflection of light occurs, the upper portion of the deodorant 1 becomes cloudy, and the lower portion remains transparent.

Further, when the weight becomes 80 times or less of its own weight, FIG.
As shown in (c), each particle of the water absorbent resin 2 has a perfect spherical shape 1c, and diffused reflection occurs throughout the deodorant 1 due to the gaps formed between the particles, and the deodorant 1 is in a state of being clouded as a whole. Becomes

When the whole becomes opaque, the effective period of the deodorant ends. As described above, the deodorant of this example, which is transparent in the initial state, loses its transparency as the water content of the water-absorbent resin 2 decreases, gradually becomes cloudy, and eventually becomes cloudy as a whole. The state where the whole is clouded can be the end of the life of the deodorizing function of the deodorizing agent, and the deodorizing agent has an indicator function that can be easily identified.

Further, in order to improve the indicator function, it is preferable that the deodorant contains a dye. The dye does not have to be specified in particular, but for example, food tar pigments such as food red No. 2 and food yellow No. 2, chlorophyll pigments such as sodium iron chlorophyllin, and food additives such as β-carotene. Although the one used is excellent in safety, it may be used for cosmetics or dyeing clothes.

The deodorant of this embodiment can be obtained by mixing the above-mentioned materials. However, due to the nature of the water-absorbent resin, the coloring agent and the like may be unevenly distributed. A uniform diffusion state can be obtained by mixing, or by allowing the mixture to stand for one day or more.

[0024]

Example (Example) Spherical water absorbent resin "Sunfresh ST30"
0 "(manufactured by Sanyo Kasei), plant extract deodorant" Apollite L "(manufactured by Nippon Kasei) 5 g, antiseptic" Neoplatinsu "and coloring agents" Blue No. 1, Yellow No. 4 "and an anti-UV agent. The deodorant of the present invention is prepared by adding a small amount of each and further adding 180 ml of ion-exchanged water.

(Comparative Example) 3 g of agar and 20 g of ion-exchanged water
Add 0 ml and dissolve at 90 ° C. Then, while cooling, 5 g of the deodorant "Apollite L" (manufactured by Nippon Kasei),
Preservative "Neoplatin" and coloring agents "Blue No. 1 and Yellow No. 4" are added in small amounts, and the resulting mixture is filled in a cylindrical container having an inner diameter of 70 mm and gelled to prepare a deodorant of Comparative Example.

The deodorants of the above examples are also placed in a cylindrical container having an inner diameter of 70 mm as in the comparative example. With respect to the examples and comparative examples in the above states, the effective period and the deodorizing power were measured by the following methods.

First, the effective period is measured at 25 ° C. and 60%.
2 is left in a room of constant temperature and constant humidity, and as shown in FIG. 2, the elapsed time until the deodorant changes from the bottom surface of the container to a position of 10 mm in height is taken as the effective period, and this effective period is measured.

Further, as shown in FIG. 3, the deodorizing power is measured in a 20 l plastic tank 31 with hydrogen sulfide gas 33.
About 10 ml is injected with a syringe to make the concentration in the plastic tank 31 50 ppm. Place the sample 34 of the deodorant in the plastic tank 31 in this state and cover with the lid 32.
Save for this time. Then, the gas concentration after 24 hours has elapsed is measured at the measurement port 35, and the ratio of the gas concentration reduced by this measurement result is calculated as the deodorizing power.

The results are shown in Table 1.

[0030]

[Table 1]

As is apparent from Table 1, in this embodiment, the effective period can be set to 1/6 of that in the comparative example, which is considerably shortened. As for the deodorizing power, the result that the initial deodorizing power was maintained even at the replacement time was obtained, and the object of the present invention could be achieved.

[0032]

As described above, according to the deodorant with an indicator of the present invention, since it is configured to contain a water absorbing resin which becomes a sphere by absorbing water and a deodorizing liquid, the initial state Is transparent and loses its transparency as the water content of the water-absorbent resin decreases with time, gradually becomes cloudy, and eventually becomes cloudy as a whole, so it has an indicator function that makes it easy to identify the life of the deodorant function. Deodorant can be realized.

Further, even if the volume decreases due to the evaporation of water over time, its vaporized surface area changes, so that even if the deodorant is near the end of its life, the deodorizing ability can be maintained in the initial state, and the deodorizing ability will decrease. do not do.

Further, the evaporation rate of water contained in the water-absorbent resin is higher than that of the deodorant in the gel state as in the prior art, and the effective period can be set shorter. As a result, the rotation of the product can be accelerated.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an operation in an embodiment of the present invention.

FIG. 2 is a diagram for explaining a method of measuring an effective period according to an embodiment of the present invention.

FIG. 3 is a diagram for explaining a method for measuring deodorizing power in an example of the present invention.

[Explanation of symbols]

 1 Deodorant 2 Water absorbent resin

Claims (1)

[Claims] 1. A deodorizing agent comprising a water-absorbing resin which becomes a sphere by absorbing water, and a deodorizing liquid.