JPS5835237Y2 - Cold pack - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cold storage device that allows the temperature of a liquid such as water or antifreeze or a highly viscous fluid to be visually read.

In general, this type of cold storage device is made by enclosing a cold storage agent gel made by adding Poval, CMC, etc. to water in an opaque soft vinyl chloride bag or a translucent bag made of synthetic resin such as polyethylene or polypropylene. There is.

This cold storage device is pre-cooled in a refrigerator, freezer, etc. before use, and is used as an ice pillow or ice pack when a person has a fever, or as an ice pillow for sleeping in the summer.

However, in the above-mentioned conventional cold storage devices that are cooled in refrigerators, freezers, etc., it is not possible to visually confirm how much the device has been cooled, which may lead to overcooling or other problems.

The present invention has been developed with the above-mentioned points in mind, and includes forming part or all of a packaging bag or container transparent, and dissolving a substance that changes color in response to temperature changes in a liquid or highly viscous fluid. By suspending suspended matter dispersed or coated with the substance in a liquid or high viscosity fluid, or by applying the substance to a bag or container, the temperature of the liquid or high viscosity fluid increases depending on the cooling temperature and temperature rise. The temperature of the liquid or highly viscous fluid can be easily determined visually by changing the color of the dissolved/dispersed substances or suspended matter, the bag, or the container, and therefore, it is possible to prevent incorrect usage. The purpose is to provide ingredients.

Another object of the present invention is to provide a cold storage device that is designed to change color depending on the temperature of the liquid or highly viscous fluid, thereby arousing the user's interest and having excellent aesthetics. .

Next, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a sectional view of a cold storage device according to an embodiment of the present invention.

In the figure, a packaging bag 1 has a flexible and water-tight transparent synthetic resin sheet 2 on one side, for example, on the upper side, and an opaque synthetic resin, rubber, etc. sheet 3 similarly flexible and water-tight on the lower side. It is sealed and molded using

This packaging bag 1 is filled with transparent or translucent cold storage gel 4 to form a cold storage device.

In the transparent or translucent cool storage gel 4, a substance 5 that changes color according to temperature changes, such as temperature indicating paint, liquid crystal, etc., is dissolved and dispersed, and the cooling temperature and temperature rise of the cool storage gel 4 are controlled. It is configured to indicate by color.

According to the cold storage device of the present invention having the above-mentioned configuration, it is possible to visually confirm the temperature at which the temperature has been cooled by checking the discolored color of the cold storage agent gel 4 inside the cold storage device that has been cooled by a refrigerator, freezer, etc.

Further, depending on the color change of the cool storage agent gel 4, it is also possible to use the cool storage agent gel 4 after cooling it to a predetermined temperature.

Furthermore, the temperature rise during use can be confirmed by the change in color of the cool storage agent gel 4.

Furthermore, as the cool storage gel 4 is cooled and the temperature rises, the cool storage gel 4 changes color, which arouses the interest of users, especially infants and children, and is aesthetically pleasing.

In the above embodiment of the present invention, the top surface of the packaging bag is made transparent, but the entire packaging bag may be made transparent, or only a portion of the top surface and side surfaces may be made transparent. You can.

Alternatively, the packaging bag may be separated into upper and lower layers, and the material that changes color depending on temperature changes may be dissolved and dispersed only in liquids such as water, antifreeze, or high viscosity fluids in the upper layer.

In this case, the liquid or highly viscous fluid filled in the lower layer does not need to be transparent or translucent, and may be impregnated into the foamed elastic body.

FIG. 2 shows a sectional view of a cold storage device according to a second embodiment of the present invention.

In this embodiment, in the transparent or colored transparent cool storage gel 4,
It is constructed by floating an arbitrary number of floating substances 6 coated with a substance that changes color in response to temperature changes, such as temperature-indicating paint, liquid crystal, etc.

The floating objects 6 are made of a material that can float in the cool storage gel 4 and are formed into a desired shape.

Further, the inner wall of the opaque sheet 3 of the packaging bag 1 is provided with a desired background, pattern, color, etc. as necessary, and the floating matter 6...
... may be molded to correspond to the background, etc.

FIG. 3 shows a perspective view of a cold storage device according to a third embodiment of the present invention.

In this embodiment, the inner wall of the transparent part 2 of the packaging bag 1 is coated with a substance 5 that changes color in response to temperature changes, such as a temperature-indicating paint or liquid crystal.

The above-mentioned temperature-indicating paint, liquid crystal, etc. can be used to create desired pictures, patterns, such as trees, icebergs, etc.
It may be printed or coated in the shape.

In this embodiment, it is desirable that the cool storage agent gel 4 filled is transparent or translucent.

In this embodiment, when the packaging bag 1 is separated into upper and lower layers, a temperature-indicating paint, liquid crystal, etc. 5 may be applied or printed on the surface of the partition wall on the transparent sheet side.

In this case, the layer on the transparent sheet side is filled with a transparent liquid or a highly viscous fluid.

In addition, in the present invention, the packaging material may be not only a bag but also a container.

Since the present invention is constructed as described above, the substance or floating matter, bag, or container changes color in accordance with the cooling temperature and temperature rise of the liquid or high viscosity fluid. The value can be easily read and confirmed visually.

Therefore, it is possible to prevent incorrect usage such as overcooling.

In addition, since the color changes as it cools and the temperature rises, it has the advantage of attracting the attention of users, especially infants and children, and being of excellent elegance.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing a cold storage device according to an embodiment of the present invention;
The figure is a sectional view showing a second embodiment of the invention, and FIG. 3 is a perspective view showing a third embodiment of the invention. In the figure, reference numeral 1 indicates a packaging bag, 2 indicates a transparent sheet, 3 indicates an opaque sheet, 4 indicates a liquid or highly viscous fluid, 5 indicates a substance that changes color depending on temperature, and 6 indicates floating matter.

Claims (1)

[Scope of utility model registration request] In a cold storage device in which a packaging bag or container is filled with a liquid such as water or antifreeze or a highly viscous fluid and sealed, a part or all of the packaging bag or container is made transparent, and the color changes according to temperature changes. The substance is dissolved or dispersed in the liquid or high viscosity fluid, or a suspended substance coated with the substance is suspended in the liquid or high viscosity fluid, or the substance is applied to a bag or container. Cold storage equipment.