JPS6125848Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an adsorption amount indicator that indicates whether or not an adsorbent such as a moisture absorbent or deodorizing agent in use still has adsorption capacity.

Conventionally, cobalt chloride has been used to indicate the drying and wetting of moisture absorbers, etc. For example, silica gel is impregnated with a saturated solution of cobalt chloride, and when the cobalt chloride contains water, it changes from blue to colorless. However, moisture absorbents are often used in relatively dimly lit places such as storage rooms in houses, and in such places it is difficult to tell whether the color is pale blue or colorless, so conventional products are not really useful. In addition, the actual adsorption amount of the moisture absorbent and the discoloration of cobalt chloride often did not match.

Also, there is no adsorption amount indicator for deodorizers.
It was often inconvenient that they continued to be used even though they had lost their deodorizing power.

The purpose of this invention is to solve the above-mentioned conventional drawbacks, to make it easy to determine the amount of moisture absorbent or deodorizer absorbed even in a dimly lit place, and to display the actual amount of moisture absorption or deodorizer, etc. It is an object of the present invention to provide an adsorption amount indicator that is easy to match with the display and is suitable for use by being attached to a main body container, etc., which is an adsorption tool in which an adsorbent such as a moisture absorbent or a deodorizing agent is packaged.

In order to achieve the above-mentioned object, the present invention fills a substantially flat airtight container with a moisture absorbent mixed with a dye that develops color when exposed to moisture, and a part of the container is covered with a moisture permeable sheet. A moisture ventilation hole is formed, and the sealed container is made transparent or a transparent part is formed for checking the coloring state of the dye, and inner wall surfaces facing each other in the thickness direction of the sealed container are made transparent through the moisture ventilation hole. The adjacent portions are formed closer to each other than other portions.

Preferred embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows an example, where 1 indicates the moisture absorbent 2.
It is a substantially flat airtight container filled with a transparent synthetic resin tray-shaped main body 11 and a flat lid 12.
In the lid 12 and/or main body 11, moisture permeable holes 4 are formed at appropriate positions, and are covered with a moisture permeable sheet 3 such as perforated polyethylene.

There are ventilation holes 4 in the inner bottom of the main body 11 of the airtight container 1.
A state where other parts are lower than the neighboring parts, that is,
A stepped portion 13 is formed in such a manner that the space between the opposing surfaces of the main body 11 and the lid 12 is wider in other parts than in the vicinity of the ventilation hole 4, and the inner wall surfaces facing each other in the thickness direction of the sealed container 1 are That is, the opposing surfaces of the main body 11 and the lid 12 are such that the portion near the moisture hole 4 is closer than the other portions.

In order to form the inner wall surfaces of the airtight container 1 facing each other in the thickness direction so that the portions near the ventilation holes 4 are closer to each other than other portions as described above, several stepped portions 13 are formed as shown in FIG. Even if formed, one or several steps 1
3 may be formed on the side of the lid 4 as shown in FIG. 4, or may be formed on both the main body 11 and the lid 12.
Furthermore, instead of forming the stepped portion 13 as described above, the inner bottom of the main body 11 is arranged so that the inner bottom of the main body 11 is gradually lowered as it moves away from the ventilation hole 4, as shown in FIG. The slope 14 may be formed so that the distance between the opposing surfaces gradually widens as the distance from the ventilation hole 4 increases.Furthermore, the slope 14 may be formed on the lid 12 side, or between the main body 11 and the lid 12.
It may be formed on both sides.

The moisture absorbent 2 filled in the airtight container 1 is made by using a porous mineral such as granular sepiolite as a carrier, and adding an appropriate amount of calcium chloride to the carrier to support the moisture absorbent. 2 contains an appropriate amount of dye (enough to cover the surface of the moisture absorbent).

Although calcium chloride has deliquescent properties, the deliquescent liquid is absorbed into the pores of a carrier such as sepiolite and is prevented from flowing out.

The dye may be any dye as long as it has the property of developing color when exposed to moisture, such as basic dyes (methylene blue), various food colorings, acid dyes, direct dyes,
Disperse dyes, mordant dyes, sulfur dyes, and the like are preferably used.

In the embodiments described above, the planar shape of the closed container 1 is not particularly limited, and it can be implemented not only in a square, rectangular or other polygonal shape, but also in a circular, oval, rectangular or ring shape. Further, in the embodiments described above, the ventilation holes 4 may be located at any position, and may be formed at two or more locations, but are preferably formed at one end of the closed container 1. Further, the size of the ventilation hole 4 may be adjusted by an adjusting plate (not shown) that slides or slides along the inner wall surface or outer wall surface of the container 1.

The airtight container 1 of the above embodiment is transparent as a whole, but instead of this, it is made so that the coloring state of the dye mixed in the moisture absorbent 2 can be confirmed sequentially from the part of the moisture ventilation hole 4 to other parts. It can also be implemented even if only a portion is transparent. Therefore, this transparent part is suitable for the container 1 when the moisture hole 4 is formed at one end of the container 1.
may be continuous from one end to the other, or may be discontinuous.

When the dye in the moisture absorbing agent 2 is dry, its particles diffusely reflect light and exhibit an extremely pale color, but as it becomes moist, the color becomes brighter. When the moisture absorbent 2 absorbs the water, the dye attached to the absorbent 2 develops a color and gradually becomes clearer, and in this way, the absorbent 2 in the container 1 gradually changes color in the other direction from the moisture ventilation hole 4. This makes it extremely easy to see even in dimly lit places.

The adsorption amount indicator a according to the present invention is constructed as described above, and since the moisture absorbent in the container 1 hardly moves even if the posture is changed, for example, as shown in FIG. It is suitable for use by being attached to the container 5 of an adsorbent packaged in a container 5. For example, when the adsorbent in the main container 5 is a hygroscopic agent, the sealing is done so that the display on the display a (indication by color development of the dye) matches the actual amount of moisture absorbed by the hygroscopic agent in the main container 5. The moisture absorbent 2 in the container 1 is the same as the moisture absorbent in the main container 5, and the size of the moisture hole 4 and the amount of the absorbent 2 are
It is set so that when the moisture absorbent in the main container 5 reaches its moisture absorption limit, the moisture absorbent 2 in the closed container 1 reaches approximately its moisture absorption limit.

The adsorption amount indicator a according to the present invention is an adsorbent for deodorization packaged in a main container 5 as shown in FIG.
In other words, when used as a deodorizer adsorption amount indicator, the deodorizer is used at a designated location (e.g. "inside the refrigerator").
Since the average lifespan of the hygroscopic agent 2 in the airtight container 1 is determined and the average temperature at the location is approximately determined, the amount of the hygroscopic agent 2 and the flow rate are determined so that the hygroscopic agent 2 in the sealed container 1 reaches its moisture absorption limit as the life period passes. The size of the wet hole 4 is set.

Note that the moisture vent hole 4 is sealed with a non-wicking tape or the like until the display device a is used.

The adsorbent packaged in the main container 5 as shown in FIG. 5 exhibits an adsorption tendency as shown by line A in FIG. 6.
That is, in FIG. 6, the elapsed time is shown in the X-axis direction, and the adsorption amount is shown in the Y-axis direction, and as can be understood from this, the adsorbent packaged in the main container 5 has a The amount of adsorption is large, and as time passes from the start of use, the amount of adsorption decreases. On the other hand, according to experiments, the moisture absorption tendency of the moisture absorbent 2 filled in the sealed container 1 is as follows, as the container 1 is smaller than the main container 5 and the absolute amount of the moisture absorbent 2 is small. As shown, the amount of adsorption remains approximately constant even after time has passed since the start of use. Therefore, the adsorption amount of the adsorbent in the main body container 5 and the display on the display a,
In other words, the coloring state of the dye mixed in the moisture absorbent 2 does not match. However, in the present invention, the inner wall surfaces of the flat airtight container 1 facing each other in the thickness direction are closer to each other in the vicinity of the ventilation hole 4 than in other parts, and in this part, the inner wall surface of the flat airtight container 1
Since the amount of the moisture absorbent 2 per plane area of the area is smaller than that of other areas, when viewed from the direction of arrow b in FIG. The adsorption amount of the adsorbent in the container 1 and the coloring state of the dye mixed in the moisture absorbent 2 in the container 1 (displayed on the display a) tend to match.

In the adsorption amount indicator according to the present invention, an airtight container 1 is filled with a moisture absorbent 2 mixed with a dye that develops color when exposed to moisture, and moisture ventilation holes 4 are formed at appropriate locations in the container 1. It is coated with a moisture-permeable sheet 3, and as it absorbs moisture from the adsorbent 2, the dye mixed with it develops a vivid color, so you can clearly see the adsorbent even in a relatively dim place like a storage room. The amount of adsorption can be confirmed, and it is also suitable for use by being attached to the main container 5, which is an adsorbent packaged with an adsorbent such as a moisture absorbent or a deodorizing agent. Further, the inner wall surface of the sealed container 1 facing in the thickness direction has moisture ventilation holes 4.
Since the neighboring parts of are closer than other parts,
The display on the display a and the adsorption state of the adsorbent in the main container 5 are likely to match.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an example of the adsorption amount indicator according to the present invention, Figs. 2 to 4 are sectional views showing other examples, and Fig. 5 is an example of the usage state of the adsorption amount indicator. The slope diagram, FIG. 6, is a diagram showing the adsorption tendency of the adsorbent. Explanation of the symbols in the main figures: 1 is a closed container, 2 is a moisture absorbent, 3 is a moisture permeable sheet, and 4 is a moisture hole.

Claims (1)

[Claims for Utility Model Registration] (1) A substantially flat airtight container is filled with a moisture absorbent mixed with a dye that develops color when exposed to moisture, and a portion of the container is formed with moisture ventilation holes. The holes are closed with a moisture permeable sheet, the sealed container is transparent or has a transparent part for confirming the coloring state of the dye, and inner wall surfaces facing each other in the thickness direction of the sealed container are An adsorption amount indicator for an adsorbent in which a portion near the moisture hole is closer than other portions. (2) The airtight container consists of a tray-shaped main body made of synthetic resin and a flat lid, and the opposing surfaces of the main body and/or lid are such that the area between the opposing surfaces is larger than the area near the ventilation hole. An adsorption amount indicator for an adsorbent according to claim 1 of the utility model registration, wherein one or several step portions are formed in a widening state. (3) The airtight container consists of a tray-shaped main body made of synthetic resin and a flat lid, and the opposing surfaces of the main body and/or lid are such that the space between the opposing surfaces gradually widens as the distance from the ventilation hole increases. An adsorption amount indicator in an adsorbent according to claim 1 of the utility model registration, which is formed on a slope.