JPH11230665A - Combined deodorant and freshness keeper for refrigerator, and its storage case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the adsorptive force of offensive odor gas, ethylene gas, etc., by using an deodorizing carbon fiber being made by carbonating natural fibers or natural fiber flocks, for the fiber carbide of a combined deodorant and freshness keeper including porous charcoal. SOLUTION: Nonwoven fabric 2 envelops porous charcoal 3 and a carbon fiber 4 to constitute a combined deodorant and freshness keeper 1 for a refrigerator. Then, the carbon fiber 4 of the combined deodorant and freshness keeper 1 for a refrigerator is arranged in the roughly center of the nonwoven fabric 2 in such a form that it halves the porous charcoal 3, and a deodorizing carbon fiber, which is made by carbonating natural fiber flocks of cotton, wool, or the like at a low temperature of 270-300 deg.C in weak oxidizing atmosphere including oxygen of 1-10 wt.%, is used. Thus, the oxidation of food can be prevented, and also odor is removed, and further offensive odor gas such as basic offensive odor gas, acidic offensive odor gas, etc., can be removed powerfully even under the freezing point, so the taste and freshness of the food can be kept with the multiplication effect of the porous charcoal 3 and the carbon fiber 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing and freshness maintaining agent for refrigerators, and more particularly to a deodorizing and freshness maintaining agent for refrigerators that absorbs odors and harmful gases in vegetable rooms, refrigerator rooms and freezer rooms.

[0002]

2. Description of the Related Art Activated carbon obtained by activating charcoal, coal or the like with steam has been widely used as a deodorant for refrigerators. The activated carbon is an adsorbent having an internal specific surface area of 500 to 1500 m ² / g, and prevents the taste of food from deteriorating by a deodorizing effect of adsorbing odor.

[0003] In particular, activated carbon made of charcoal is suitable for activated carbon for refrigerators because it can maintain the above-mentioned deodorizing effect for a long period of time and has a low impurity content and does not contain harmful substances (mercury, hexavalent chromium, arsenic, etc.). I have. In addition, the charcoal has been attracting particular attention in recent years, since it can be used as a soil modifying agent for preventing the increase of carbon dioxide in the atmosphere and the acidification of forests due to acid rain even after being used as activated carbon.

[0004]

However, since the deodorizing power of the activated carbon depends only on physical adsorption, it has an adsorbing power on basic malodorous gases such as amines and ammonia and acidic malodorous gases such as mercaptan and hydrogen sulfide. Is not sufficient, and the deodorizing power is remarkably reduced in an environment below the freezing point. Therefore, even if the activated carbon is installed in a freezing room, it is inevitable that an odor adheres to ice or the like.

The present invention has been made in view of such a situation, and removes offensive odor gas, putrefactive gas and the like by a strong adsorption force independent of the environment, so that food can be stored in any of a vegetable room, a refrigerator room and a freezer room. An object of the present invention is to provide a deodorizing and freshness maintaining agent for a refrigerator capable of maintaining taste and freshness, and a storage case thereof.

[0006]

Means for Solving the Problems The present inventor has conducted intensive studies in solving the above-mentioned problems, and as a result, has found that porous charcoal,
In particular, Bincho charcoal subjected to activation processing
The use of carbonized fibers as described in No. 3 greatly increases the adsorbing power of odorous gas, ethylene gas, etc. due to their synergistic effect, and further maintains the adsorbing power even below the freezing point for deodorization and freshness for refrigerators. The present inventors have found that a maintenance agent can be obtained, and have completed the present invention.

That is, the present invention is a refrigerator deodorizing and freshness maintaining agent comprising porous charcoal and carbonized fiber, wherein the carbonized fiber is a deodorized carbonized fiber obtained by carbonizing natural fiber or natural fiber waste. It is characterized by. In such a deodorizing and freshness maintaining agent for refrigerators, the porous charcoal prevents the food from being oxidized (decayed) and adsorbs odor by an electron donating action, and in addition to this, the carbonized fiber has a basic malodor. Since gas and acidic malodorous gas such as malodorous gas are strongly adsorbed even below the freezing point, the taste and freshness of the food can be maintained in any of the vegetable room, the refrigerator room and the freezer room.

[0008] Here, the above-mentioned "electron donating action" refers to an action of collecting innumerable free electrons flying into the air in the refrigerator and replenishing the free electrons to the food, thereby preventing the food from being oxidized. The interior of the refrigerator is in a stable state where a magnetic field is generated.

It is preferable that the porous charcoal is a porous charcoal obtained by activating the bincho charcoal. The porous Bincho charcoal strongly adsorbs ethylene gas, which causes deterioration of the quality of vegetables and the like, and is excellent in the electron donating action, so that the freshness of the food is more reliably maintained.

[0010] In addition, as a storage case used when the deodorizing and freshness maintaining agent for a refrigerator is installed in the refrigerator, at least a part is provided with an opening, and twelve labels are cut along the periphery of the opening. It is preferable to use a storage case that is formed so as to be cut off or bendable and that the numbers of 1 to 12 are described in order from one end label on the surface of the 12 labels. By using such a storage case, when using the deodorizing and freshness maintaining agent for refrigerators, cut or bend the label describing the number of the month of starting use,
It can be used as an indication of the time for replacing the deodorizing and freshness maintaining agent for the refrigerator.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention; FIG. 1 shows a typical embodiment of a deodorizing and freshness maintaining agent for a refrigerator of the present invention, wherein 1 indicates a deodorizing and freshness maintaining agent for a refrigerator, 2 indicates a nonwoven fabric, 3 indicates porous charcoal, and 4 indicates a carbonized fiber. ing.

The porous charcoal 3 of the present invention absorbs the odor in the refrigerator and prevents the food from being oxidized by its electron donating action. Further, the carbonized fiber 4 is for strongly removing odorous gas regardless of the vegetable room, the refrigerator room, and the freezer room of the refrigerator.

The non-woven fabric 2 comprises the porous charcoal 3 and the carbonized fiber 4 and constitutes the deodorizing and freshness maintaining agent 1 for refrigerators. As shown in FIG. Are located at substantially the center of the nonwoven fabric 2 in such a manner that the charcoal charcoal 3,. Here, as shown in FIG. 2 (b), the carbonized fiber 4 may be laid first, and the porous charcoal 3,...

[0014] The porous charcoal 3 is a porous charcoal charcoal having an adsorption power about 5 times that of the activated charcoal before the activated charcoal by crushing the bincho charcoal and causing deterioration of the quality of vegetables and the like. Strongly adsorbs ethylene gas. Here, the Bincho charcoal is charcoal that uses Ubamegashi (fagaceae) as a charcoal material. When extinguishing with elementary ash (extinguishing) after refining, the outside is covered with ash and becomes white, so it is generally called “white ash” It has an internal specific surface area of about 300 m ² / g and shows an alkaline pH of 8 to 9 and contains a large amount of minerals in 1 to 3% of ash, which is effective in purifying water and air and reforming acidic soil. Therefore, in 1986, it was designated as a "Soil Improvement Material" by a government ordinance.

The carbonized fiber 4 is obtained by carbonizing natural fiber waste such as cotton and wool at 270 to 300 ° C. in a weakly oxidizing atmosphere containing 1 to 10% by weight of oxygen at a low temperature.
Various functional groups formed on the carbonized fiber 4 chemically react with various harmful gases to remove the harmful gases from the inside of the storage. Since the gas is chemically adsorbed as described above, the carbonized fiber 4 has a deodorizing power of about 20 times that of the conventional deodorant, and includes a basic malodorous gas such as amine and ammonia, mercaptan, hydrogen sulfide and the like. It is characterized by strongly adsorbing even acidic odor gases. Further, even if the adsorptive power is reduced, it can be easily regenerated by drying or heating on the sun. The temperature at which the natural fiber is carbonized is not limited to the above-described range, but is desirably set appropriately according to the thickness of the natural fiber.

The deodorizing and freshness maintaining agent 1 for refrigerators as described above maximizes its effect in a refrigerator.
Prior to use, it is preferable to seal in a gas-impermeable bag.

Next, FIG. 3 shows a typical embodiment in which the deodorizing and freshness maintaining agent 1 for a refrigerator of the present invention is mounted in a refrigerator. In the drawing, reference numeral 5 denotes a storage case, and 6 denotes a suction cup.

The storage case 5 is a box made of water-resistant paper having an opening for inserting the deodorizing and freshness maintaining agent 1 for refrigerators above. The notch 7 is provided at the upper edge of the front surface to form a concave shape when viewed from the front. A total of twelve labels 8,... Are formed on the peripheral edge of the notch 7 so as to be separated or bendable at a cutting line. A polished hole 9 is formed substantially in the center of the rear surface, and the polished hole 9 is engaged with the circumferential groove 10 of the head of the suction cup 6 attached to the inner wall surface of the refrigerator. Hanged. Here, as shown in FIG. 4, by providing an opening only on the front surface, it is also preferable to provide a storage case in which the deodorizing and freshness maintaining agent for the refrigerator does not easily fall off even when it is attached to the upper wall in the refrigerator. In this embodiment, water-resistant paper which is easy to process is used as the material of the storage case, but synthetic resin may be used in terms of durability.

The twelve labels 8,... Are numbered from 1 to 12 in order from the end label. When using the deodorizing and freshness maintaining agent 1 for refrigerator, the label indicating the number of the starting month is cut off. Alternatively, by folding the deodorizing and freshness maintaining agent 1 for the refrigerator, it becomes an indication of replacement time, and the deodorizing effect can be managed.

As the material of the suction cup 6, general vinyl chloride may be used, but in the present embodiment, an elastomer (elastic body) is used in consideration of the influence on the environment at the time of disposal. As means for installing the storage case according to the present invention in the refrigerator, in addition to being suspended on the inner wall surface of the refrigerator by the suction cup 6, it is hung from the upper shelf using a hook or the like, or a floor or the like is provided by providing a stand or the like. It is also preferable to install them at

[0021]

According to the deodorizing and freshness maintaining agent for refrigerators of the present invention as described above, porous charcoal can prevent the oxidization (decay) of foods and remove odors. Because it can strongly remove malodorous gas such as acidic malodorous gas even below the freezing point, by the synergistic effect of these porous charcoal and carbonized fiber,
The taste and freshness of the food can be maintained in any of the vegetable room, the refrigerator room, and the freezer room.

In particular, when a porous bincho charcoal is used as the porous charcoal, oxidation of the food can be more reliably prevented, and ethylene gas, which causes deterioration of the quality of vegetables and the like, can be strongly removed.

In addition, an opening is provided at least in part as a storage case used when the deodorizing and freshness maintaining agent for refrigerators is installed in a refrigerator, and twelve labels are cut off at the periphery of the opening by a dividing line. Or, it can be bent freely,
When using a storage case in which the numbers 1 to 12 are described in order from the label at one end on the two label surfaces, when using the deodorizing and freshness maintaining agent for refrigerator, a label describing the number of the use start month is used. By simply separating or bending the refrigerator, it can be used as a guide for the replacement time of the deodorizing and freshness maintaining agent for the refrigerator.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a typical embodiment of a deodorizing and freshness maintaining agent for a refrigerator of the present invention.

FIGS. 2A and 2B are explanatory cross-sectional views showing a representative embodiment of a deodorizing and freshness maintaining agent for a refrigerator.

FIG. 3 is an explanatory perspective view showing a typical embodiment in which a deodorizing and freshness maintaining agent for a refrigerator is mounted in the refrigerator.

FIG. 4 is an explanatory perspective view showing another embodiment of a storage case used when a deodorizing and freshness maintaining agent for a refrigerator is mounted in the refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deodorant and freshness maintenance agent for refrigerators 2 Nonwoven fabric 3 Porous charcoal 4 Carbonized fiber 5 Storage case 6 Suction cup 7 Notch 8 Label 9 Daruma hole 10 Head groove

Claims (3)

[Claims] 1. A refrigerator deodorizing and freshness maintaining agent comprising porous charcoal and carbonized fiber, wherein the carbonized fiber is a deodorized carbonized fiber obtained by carbonizing natural fiber or natural fiber waste. A deodorant and freshness maintainer for refrigerators. 2. The deodorizing and freshness maintaining agent for a refrigerator according to claim 1, wherein the porous charcoal is a porous charcoal obtained by activating a bincho charcoal. 3. A storage case for installing a deodorizing and freshness maintaining agent for a refrigerator in a refrigerator, wherein at least a part of the storage case is provided with an opening, and twelve labels are formed on the peripheral edge of the opening by a score line. It is formed so that it can be cut off or folded freely, and the labels on the twelve labels are arranged one by one from the label at one end.
A storage case in which numbers from to 12 are described.