JP2022131069A - Bottle heat-keeping device and bottle heat-keeping method - Google Patents

Abstract

To provide a bottle heat-keeping device and a bottle heat-keeping method preventing a surface of a bottle from be wet through condensation and the like.SOLUTION: A bottle heat-keeping device 20 is configured to successively arrange a polyester part 24 with permeability, a water absorptive sheet 10, an aluminum vapor deposition film 25, a resin film 50, and a jacket material 26 from a bottle side toward an outer side in a cross-sectional view, the bottle heat-keeping device 20 allowing temperature of a bottle to be kept lower than atmospheric temperature through winding itself around a bottle 30, wherein the water absorptive sheet is placed between two pieces of unwoven fabric with permeability 11a, 11b, having unwoven fabric seal parts 13a to 13h where at least edge parts of the two pieces of unwoven fabric are thermally compressed and bonded.SELECTED DRAWING: Figure 4

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottle heat-retaining device and a bottle heat-retaining method that are attached to a bottle of wine, Japanese sake, or the like to keep the temperature of the bottle at a lower temperature than normal temperature.

In restaurants and the like, when wine is served in a bottle, it is often carried out by putting it in a wine cooler containing ice to keep it at a temperature lower than room temperature.

However, if a wine bottle is placed in a wine cooler containing ice, the wine bottle may get wet and drip, which is not suitable for the image of a high-end restaurant. In addition, wiping the wine bottle with linen or the like in order to prevent dripping water is troublesome and unsmart.

Patent Literature 1 describes a device that seals a water-absorbing polymer into a semicylindrical shape, aligns them in a wavy shape, and wraps them around a bottle in a frozen state to keep it cool.

Patent Document 1: JP-A-2006-273420

However, the bottle described in Patent Document 1 has a problem that, if the bottle is cold from the beginning, the surface of the bottle becomes wet due to dew condensation when the environment is returned to room temperature.

An object of the present invention is to solve the above problems and to realize a bottle heat retaining device and a bottle heat retaining method that prevent the surface of the bottle from getting wet due to dew condensation or the like.

In order to solve the above problems, the present invention is a bottle heat retaining device that can keep the bottle at a low temperature relative to room temperature by winding it around the bottle,
The bottle heat retaining device is arranged in the order of a polyester part having water permeability, a water absorbent sheet, an aluminum vapor deposition film, a resin film, and an exterior material from the bottle side toward the outside in a cross-sectional view,
The water-absorbent sheet is disposed between two nonwoven fabrics having water permeability, and has a nonwoven fabric sealing portion in which at least ends of the two nonwoven fabrics are thermocompressed to each other. It provides

With this structure, water can be absorbed by the water-absorbing sheet when the surface of the bottle is prone to condensation, preventing the surface of the bottle from getting wet due to condensation, etc., and the resin film keeps the bottle firm and firm. It is possible to realize a bottle heat-retaining device.

The bottle heat retaining device may have a configuration in which a cold insulating sheet is arranged between the water absorbent sheet and the aluminum deposition film.

With this configuration, a bottle heat retaining device with improved heat retaining effect can be obtained.

In the bottle heat retaining device, the resin sheet may have a winding spring having a spring force in a winding direction.

With this configuration, the bottle heat retaining device can be tightly wrapped around the bottle.

Further, in order to solve the above problems, the present invention is a bottle heat retaining method that can keep the bottle at a low temperature relative to normal temperature by wrapping it around the bottle,
A cooling step of refrigerating or freezing the cold insulating sheet;
In a cross-sectional view, the water-permeable polyester portion and the aluminum vapor-deposited portion in the bottle heat retaining device are arranged in this order from the bottle side toward the outside in the order of the water-permeable polyester portion, the aluminum vapor deposition film, the resin film, and the exterior material. A cold insulating sheet storing step of storing the cold insulating sheet between the membrane;
a water-absorbing sheet storing step of storing a water-absorbing sheet between the water-permeable polyester portion and the cooling sheet in the bottle heat retaining device;
To provide a bottle heat retaining method characterized by comprising

With this structure, water can be absorbed by the water-absorbing sheet when the surface of the bottle is prone to condensation, preventing the surface of the bottle from getting wet due to condensation, etc., and the resin film keeps the bottle firm and firm. It is possible to realize a bottle heat-retaining device.

With the bottle heat retaining device and the bottle heat retaining method of the present invention, it is possible to prevent the surface of the bottle from getting wet due to dew condensation, etc., and keep the bottle at a temperature lower than room temperature.

BRIEF DESCRIPTION OF THE DRAWINGS The figure explaining the bottle heat retention apparatus in Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The figure explaining the water absorbent sheet in Example 1 of this invention. FIG. 2 is a diagram for explaining a resin film in Example 1 of the present invention; FIG. 2 is a diagram of the bottle heat retaining device in Example 1 of the present invention wrapped around a bottle. The figure explaining the bottle heat retention apparatus in Example 2 of this invention. The figure explaining the cold insulation sheet in Example 2 of this invention. The figure which shows the heat retention test data in the bottle heat retention apparatus of this invention.

(bottle warmer)
Embodiment 1 A bottle heat retaining device according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1A and 1B are diagrams for explaining a bottle heat retaining device according to Embodiment 1 of the present invention, in which (a) is a front view, (b) is a side view, and (c) is a cross-sectional view. 2A and 2B are diagrams illustrating the water-absorbent sheet in Example 1 of the present invention, where (a) is a front view and (b) is a side view. 3A and 3B are diagrams illustrating the resin film in Example 1 of the present invention, where (a) is a front view and (b) is a side view. 4A and 4B are diagrams showing the bottle heat retaining device of Embodiment 1 of the present invention wrapped around a bottle, where (a) is a front view, (b) is a bottom view, (c) is a top view, and (d) is a left side view. Fig. (e) shows a right side view and (f) a rear view.

In Example 1, the water permeability of the bottle heat retaining device 20 in which the water permeable polyester portion 24, the aluminum deposition film 25, the resin film 50, and the exterior material 26 are arranged in this order from the bottle side toward the outside in cross section. A water-absorbing sheet 10 is housed between the polyester part 24 and the aluminum deposited film 25, and wrapped around a bottle of wine or the like to keep the bottle warm.

The bottle heat-retaining device 20 has a mountain shape with a height of about 250 mm at the center and a shape that gently slopes downward toward the end, and has a maximum width of about 290 mm (see FIG. 1). Therefore, when the bottle heat retaining device 20 is rolled, it can be formed into a three-dimensional shape in which the upper portion is cut off in a front view (see FIG. 4). Therefore, when the bottle heat retaining device 20 is wrapped around the bottle 30, the label 31 of the bottle 30 can be visually recognized (see FIG. 4(a)).

In the central part of the inner side (the side in contact with the bottle) of the bottle heat retaining device 20, there is a notch in the vertical direction (the y direction in FIG. 2), and an insertion port 21 into which the water absorbent sheet 10 described later can be inserted. is formed. The interior of the bottle heat retaining device 20 has a sufficient size to accommodate the water absorbent sheet 10 (see FIG. 1).

The inside of the bottle heat retaining device 20 (the side in contact with the bottle) is entirely covered with a water-permeable polyester portion 24, and the water absorbent sheet 10 is accommodated on the outside thereof (inside the bottle heat retaining device 20). An aluminum deposition film 25 is provided on the entire surface of the outside of the stored water absorbent sheet. Furthermore, a mountain-shaped resin film 50 made of PET is accommodated outside the aluminum vapor deposition film 25, and further outside is covered with an exterior material 26 made of fabric (FIG. 1(c)). reference). That is, the bottle heat retaining device 20 in Example 1 includes, in a cross-sectional view, a water-permeable polyester portion 24, a water-absorbing sheet 10, an aluminum vapor-deposited film 25, a resin film 50, and an exterior material 26 from the bottle 30 side toward the outside. are arranged in the order of

Since the inside of the bottle heat retaining device 20 (the side in contact with the bottle) is entirely covered with the polyester portion 24 through which moisture can pass, moisture such as dew condensation is prevented even when the cold bottle 30 is wrapped around the polyester portion 24. Water is absorbed by the water absorbing polymers 12a to 12h of the water absorbing sheet 10 through the water absorbing sheet 10. Therefore, the inner surfaces of the bottle 30 and the bottle heat retaining device 20 do not get wet due to dew condensation. As a result, when wine is served in a high-class restaurant, water does not drip and the sense of quality is not spoiled.

Further, since the outside of the water-absorbing sheet 10 is covered with the vapor-deposited aluminum film 25, the effect of keeping the temperature of the bottle 30 at a low temperature lower than room temperature can be obtained.

In addition, since the resin film 50 made of PET having a shape slightly smaller than that of the exterior material 26 is housed inside the exterior material 26, the bottle heat-retaining device 20 that is firm and firm can be realized.

Furthermore, since the outermost side of the bottle heat retaining device 20 is entirely covered with the exterior material 26 made of fabric, it is possible to produce a high-class feeling. As shown in FIG. 4(b), a bottle fall prevention device 27 is provided on the bottom surface of the bottle heat retaining device 20 (see FIG. 1).
, the description of the bottle drop prevention device 27 is omitted. ). The bottle drop prevention device 27 in the first embodiment is made of an elastic rubber material and is sewn to the bottle heat retaining device 20 so as to intersect the bottom surface of the bottle heat retaining device 20 while the bottle heat retaining device 20 is wound. Since the bottle fall prevention device 27 is made of an elastic rubber material, the bottle heat retaining device 20 can be opened.

In Embodiment 1, the bottle fall prevention device 27 made of rubber material is sewn to the bottle heat retaining device 20 so as to intersect the bottom surface of the bottle heat retaining device 20 while the bottle heat retaining device 20 is wound. is not limited to , and can be changed as appropriate. For example, the bottle drop prevention device 27 made of a piece of cloth may be fixed to the bottle heat retaining device 20 with a button or the like. Further, the entire bottom surface of the bottle heat retaining device 20 may be covered with the bottle fall prevention device 27 made of cloth. Also, the bottle drop prevention device 27 may be made of a material other than cloth.

In addition, a hook-and-loop fastener is attached to the right end (the end in the x direction) of the inside of the bottle heat retaining device 20 (the side in contact with the bottle 30), and the position corresponding to when the bottle heat retaining device 20 is wound around the bottle 30 (outside the left end). You may make it fix combining with the hook-and-loop fastener provided in. Alternatively, for example, one end of a rubber or string may be sewn to the right end of the bottle heat retaining device 20, a button may be attached to the other end, and the button provided on the left end of the bottle heat retaining device 20 may be fitted and fixed. . Also, the right end and the left end of the bottle heat retaining device 20 may be fixed with a clip such as a money clip. As a result, when the bottle heat retaining device 20 is wound around the bottle 30, it can be prevented from coming apart.

(water absorbent sheet)
The water-absorbent sheet 10 in Example 1 is stored inside the bottle heat-retaining device 20 to absorb water, and has a length of about 160 mm in the height direction (y direction in FIG. 1) and a width direction ( The length in the x direction in FIG. 2) is about 210 mm, and the length in the thickness direction (the z direction in FIG. 2) is about 1 mm. The water-absorbent sheet 10 includes two water-permeable nonwoven fabrics 11a and 11b having substantially the same shape, and eight sheet-like water-absorbent polymers 12a to 12h. The water-absorbing polymers 12a to 12h are composed of a plurality of granules and are arranged between the two non-woven fabrics 11a and 11b with a space between them, and between the water-absorbing polymers in the two non-woven fabrics 11a and 11b and between the two non-woven fabrics. The ends of 11a and 11b have non-woven fabric seal portions 13 (13a to 13h) that are thermocompression bonded to each other.

When the water-absorbing polymer absorbs water, it becomes granular with a size of about 1 mm. Then, if the nonwoven fabrics 11a and 11b are sealed with perforations, water-containing granular water-absorbing polymers may leak out of the nonwoven fabrics 11a and 11b through the gaps between the perforations. In Example 1, even if the water-absorbing polymers 12a to 12h absorb water, the nonwoven fabric sealing portion 13 (13a to 13h) which is thermally compressed does not leak outside the nonwoven fabrics 11a and 11b. In addition, since the two nonwoven fabrics 11a and 11b between the water absorbing polymers 12a to 12h are thermocompressed, the water absorbing polymers 12a to 12h do not contact each other or ride on each other. The water-absorbing polymers 12a to 12h are arranged evenly even when rolled. Moreover, since it is in the form of a sheet, the water-absorbing sheet 10 can be made thin and can be easily held by hand.

The water absorbing polymers 12a to 12h are used in diapers, and are polymeric materials that absorb several hundred to 1,000 times their own weight in water and retain the absorbed water even when some pressure is applied. The water-absorbing polymers 12a to 12h are short in the width direction (x direction in FIG. 1) and long in the height direction (y direction in FIG. 1). , are aligned in the height direction (the y direction in FIG. 1). The length in the width direction (x direction in FIG. 1) of the water absorbing polymers 12a to 12h in Example 1 is about 13 mm, and the length in the thickness direction (z direction in FIG. 1) is about 0.8 mm. The height direction (y direction in FIG. 1) length of the water absorbing polymers 12a and 12h is about 10 mm, the height direction (y direction in FIG. 1) length of the water absorbing polymers 12b and 12g is about 12 mm, the water absorbing polymer 12c, The length in the height direction (y direction in FIG. 1) of 12d, 12e, and 12f is about 14 mm.

The nonwoven fabrics 11a and 11b are characterized by having a porous structure, and are air permeable and permeable to moisture (has water permeability). Therefore, the dew condensation on the bottle 30 can be sufficiently absorbed by the water absorbing polymers 12a to 12h.

In addition, in Example 1, eight sheets of water absorbing polymers 12a to 12h were used, but it is not necessarily limited to this and can be changed as appropriate. For example, the number of water-absorbing polymers may be 7 or less, or 9 or more.

In addition, in Example 1, the nonwoven fabrics 11a and 11b are trapezoidal, but the trapezoidal shape is not necessarily limited to this and can be changed as appropriate. For example, it may be rectangular (in this case, one sheet of rectangular water-absorbent polymer 12 may be used) or square, and any shape can be selected. Moreover, when the water absorbing polymer is composed of one sheet, the non-woven fabric sealing portion between the water absorbing polymers is not necessary, and at least the non-woven fabric sealing portion in which the ends are thermocompression bonded to each other may be provided.

(resin film)
As shown in FIG. 3, the resin film 50 has a mountain-like shape in the center and a gentle downward slope toward the ends. As a whole, it has a similar shape that is one size smaller than the bottle heat retaining device 20 and is housed inside the bottle heat retaining device 120 exactly along the shape thereof. The resin film 50 is made of PET with a thickness of about 0.3 mm, and is accommodated in the bottle heat retaining device 20 so that the bottle heat retaining device 20 itself can be tightly wrapped around the bottle.

In Example 1, the resin film 50 holds the winding spring 52 having a spring force in the winding direction by making a plurality of cuts in the resin film 50 and inserting them alternately. Also, both longitudinal ends of the wound spring 52 may be fixed to the resin film 50 with an adhesive tape or the like. The wound spring 52 is made of a spring material made of special steel, and has a substantially rectangular shape with rounded ends with a thickness of about 1 mm, a length of about 270 mm, and a width of about 25 mm. When the wound spring 52 extends straight in the longitudinal direction, the lateral direction is curved outward. By lightly pressing the curved convex surface, the curvature is canceled and the short side direction becomes straight, and the longitudinal direction spring force works in the winding direction, so that the bottle 30 is curled.

As a result, the bottle heat retaining device 20 can be firmly wound around the bottle 30 without fixing the bottle heat retaining device 20 with a hook-and-loop fastener or a string, and can be kept as it is.

In the first embodiment, the resin film 50 is provided with the wound spring 52, but the configuration is not necessarily limited to this and can be changed as appropriate. For example, a resin film without the winding spring 52 may be used. Even if the winding spring 52 is not provided, the resin film can provide a firm and firm bottle heat retaining device.

Moreover, in Example 1, the resin film 50 is made of PET, but it is not necessarily limited to this and can be changed as appropriate. For example, any elastic resin material such as vinyl chloride can be selected.

Thus, in Example 1, the bottle heat retaining device is capable of keeping the bottle at a low temperature relative to room temperature by winding it around the bottle,
The bottle heat retaining device is arranged in the order of a polyester part having water permeability, a water absorbent sheet, an aluminum vapor deposition film, a resin film, and an exterior material from the bottle side toward the outside in a cross-sectional view,
The water-absorbent sheet is disposed between two nonwoven fabrics having water permeability, and has a nonwoven fabric sealing portion in which at least ends of the two nonwoven fabrics are thermocompressed to each other. As a result, the bottle whose surface is not wetted with water can be kept at a temperature lower than room temperature.

Embodiment 2 of the present invention differs from Embodiment 1 in that a cold insulating sheet is accommodated inside the bottle heat retaining device. A second embodiment will be described with reference to FIGS. 5 and 6. FIG. 5A and 5B are diagrams for explaining a bottle heat retaining device according to Embodiment 2 of the present invention, in which (a) is a front view, (b) is a side view, and (c) is a sectional view. 6A and 6B are diagrams illustrating a cold insulating sheet according to Embodiment 2 of the present invention, where (a) is a front view and (b) is a side view.

The bottle heat retaining device 120 in the second embodiment accommodates the cold insulating sheet 40 inside. That is, the bottle heat retaining device 120 includes, in a cross-sectional view, a water-permeable polyester portion 24, a water-absorbing sheet 10, a cold-insulating sheet 40, an aluminum deposition film 25, a resin film 50, and an exterior material 26 from the bottle 30 side toward the outside. are arranged in the order of

(cooling sheet)
The cold insulation sheet 40 in Example 2 is housed inside the bottle heat retaining device 120 to improve the heat retaining effect of keeping the bottle 30 at a low temperature. It has a substantially trapezoidal shape with a length of about 160 mm, a length of about 210 mm in the width direction (x direction in FIG. 1), and a length of about 1 to 2 mm in the thickness direction (z direction in FIG. 2). The cold insulating sheet 40 accommodates fluid cold insulating agents 42 (42a to 42e) at five locations between two polyethylene resin sheets 41a and 41b having substantially the same shape. The cold insulators 42 (42a to 42e) are made of polymer and are arranged between the two resin sheets 41a and 41b with a gap between them. and a cold insulation sheet seal portion 43 (43a to 43e) in which the ends of the two resin sheets 41a and 41b are thermocompression bonded.

The cold insulating sheet 40 can cool the cold insulating agent 42 (42a to 42e) by placing it in a refrigerator and refrigerating or freezing it. A cold insulating sheet 40 having cold insulating agents 42a to 42e that has been chilled or frozen is housed inside the bottle heat retaining device 20 and wrapped around the bottle 30, thereby enhancing the heat retaining effect and keeping the bottle 30 at a temperature lower than normal temperature. be able to.

In addition, in Example 2, since the outer side of the cold insulating sheet 40 is covered with the vapor deposited aluminum film 25, the temperature of the cold insulating sheet 40 is prevented from escaping to the outside, and the temperature of the bottle 30 is maintained at a low temperature lower than room temperature. can get.

In the second embodiment, the cooling agents 42a to 42e are arranged at five locations, but the arrangement is not necessarily limited to this and can be changed as appropriate. For example, the number may be 4 or less, or 6 or more, and depending on the diameter of the bottle 30 or the like, the cooling agent may be arranged at any position to facilitate winding.

In addition, in Example 2, the cold insulating sheet 42 has a trapezoidal shape, but the shape is not necessarily limited to this and can be changed as appropriate. For example, it may be rectangular or square, and any shape can be selected.

(How to keep bottle warm)
When the bottle 30 is kept warm by the bottle heat retaining device 20 at a temperature lower than the room temperature, a cooling process is carried out in which the cold insulating sheet 40 is placed in a refrigerator or a freezer. Then, a cold insulating sheet storage step is performed in which the cooled cold insulating sheet 40 is inserted into the bottle heat retaining device 20 from the insertion opening 21 and stored. Next, a water-absorbent sheet storage step is carried out in which the water-absorbent sheet 10 is inserted into the bottle heat retaining device 20 through the insertion port 21 and stored. Then, the bottle heat retaining device 20 in which the cold insulating sheet 40 and the water absorbent sheet 10 are housed may be wrapped around the bottle 30 of wine or the like to keep it warm.

When serving wine or the like, the wine bottle 30 wrapped with the bottle heat retaining device 20 is lifted and poured into a glass. At this time, since the sheet-like thin water-absorbing polymers 12a to 12h in the water-absorbing sheet 10 absorb the water condensed on the bottle 30, the bottle 30 can be prevented from getting wet. In addition, since the thin cold insulation sheet 40 cools and the thin water absorbent sheet 10 absorbs water, even if the bottle 30 is wrapped with the bottle heat retaining device 20, the bottle heat retaining device 20 does not become thick, and the bottle heat retaining device 20 can be used in the same way as when wine is served in a bottle. You can bring and serve wine. Further, since the bottom surface of the bottle heat retaining device 20 is provided with the bottle fall prevention device 27, the bottle 30 does not fall.

Thus, in Example 2, the bottle heat-retaining device has a further improved heat-retaining effect by arranging the cold-insulating sheet between the water-absorbing sheet and the aluminum vapor-deposited film. be able to.

In addition, in Example 2, a method for keeping the bottle warm by wrapping it around the bottle so that the bottle can be kept at a low temperature relative to room temperature,
A cooling step of refrigerating or freezing the cold insulating sheet;
In a cross-sectional view, the water-permeable polyester portion and the aluminum vapor-deposited portion in the bottle heat retaining device are arranged in this order from the bottle side toward the outside in the order of the water-permeable polyester portion, the aluminum vapor deposition film, the resin film, and the exterior material. A cold insulating sheet storing step of storing the cold insulating sheet between the membrane;
a water-absorbing sheet storing step of storing a water-absorbing sheet between the water-permeable polyester portion and the cooling sheet in the bottle heat retaining device;
can keep the bottle at a temperature lower than room temperature, the surface of which is not wetted with water, by the method for keeping the bottle warm.

(Heat insulation test data)
Finally, the results of a heat retention test (at room temperature of 24° C.) of the bottle heat retaining device 20 in Example 1 and the bottle heat retaining device 120 in Example 2 will be described with reference to FIG. FIG. 7 is a diagram showing heat retention test data for the bottle heat retaining device of the present invention. 2 shows temperature changes on the bottle surface when the bottle heat retaining device 120 in FIG. 2 is wrapped around the wine bottle.

The vertical axis of the graph in FIG. 7 indicates temperature (° C.), and the horizontal axis indicates time (minutes). As shown by A in FIG. 7, in the case of the wine bottle not wound with the bottle heat retaining device, the surface temperature was initially 5°C, increased to 11°C after 30 minutes, and reached 14°C after 60 minutes. has reached

On the other hand, as shown in FIG. 7B, when the bottle heat retaining device 20 in Example 1 was wrapped around the wine bottle, the surface temperature was initially 5°C, but after 30 minutes the surface temperature was 8°C. and reached 10°C after 60 minutes, but a sufficient effect is obtained even with dry white wine, whose optimum temperature is said to be about 8°C to 12°C.

As shown in FIG. 7C, when the bottle heat retaining device 120 in Example 2 was wrapped around a wine bottle, the surface temperature was initially 5°C, but after 30 minutes the surface temperature rose to 6°C. After that, the temperature was maintained at 6° C. even after 60 minutes passed, and it can be seen that the heat retaining effect of the bottle heat retaining device 120 accommodating the cold insulating sheet 40 in Example 2 is improved.

Thus, both the bottle heat retaining device 20 in the first embodiment and the bottle heat retaining device 120 in the second embodiment can keep the bottle at a temperature lower than normal temperature.

INDUSTRIAL APPLICABILITY The bottle heat-retaining device and bottle heat-retaining method of the present invention can be widely used in the field of keeping a bottle of wine or the like at a temperature lower than room temperature.

10: water absorbent sheet 11 (11a, 11b): nonwoven fabric
12 (12a to 12h): water absorbing polymer
13 (13a to 13h): Non-woven fabric sealing part
20: Bottle heat retaining device 21: Insertion port
24: Polyester part 25: Aluminum deposition film 26: Exterior material
27: Bottle drop prevention device
30: bottle
40: Cooling sheet 41 (41a, 41b): Resin sheet
42 (42a to 42e): refrigerant
43 (43a to 43e): Cooling sheet sealing part
50: Resin film 51: Resin plate 52: Winding spring
120: Bottle warmer

In order to solve the above problems, the present invention is a bottle heat retaining device that can keep the bottle at a low temperature relative to room temperature by winding it around the bottle,
The bottle heat retaining device is arranged in order from the bottle side toward the outside in a cross-sectional view in the order of a polyester part having water permeability, a water absorbing sheet, a cold insulating sheet, an aluminum vapor deposition film, a resin film, and an exterior material,
The water-absorbent sheet has a non-woven fabric seal portion disposed between two non-woven fabrics having water permeability, and at least the ends of the two non-woven fabrics are thermocompression bonded,
The resin film is provided with a long winding spring having a spring force in the winding direction, and the winding spring is made of special steel and stretches straight in the longitudinal direction. To provide a bottle heat retaining device characterized by:

With this structure, water can be absorbed by the water-absorbing sheet when the surface of the bottle is prone to condensation, preventing the surface of the bottle from getting wet due to condensation, etc., and the resin film keeps the bottle firm and firm. It is possible to realize a bottle heat-retaining device.
Also, the bottle heat retaining device can be tightly wrapped around the bottle.

The bottle heat-retaining device may have a mountain-shaped central portion and a gently downwardly sloping shape toward the ends so that the label of the bottle can be visually recognized when wrapped around the bottle. .

This configuration allows the label on the bottle to be visible.

The bottle heat-retaining device may include a drop prevention device on the bottom surface of the bottle for preventing the bottle from dropping when the bottle is wound .

With this configuration, it is possible to prevent the bottle from falling from the bottle heat retaining device.

Further, in order to solve the above problems, the present invention is a bottle heat retaining method that can keep the bottle at a low temperature relative to normal temperature by wrapping it around the bottle,
A cooling step of refrigerating or freezing the cold insulating sheet;
In a cross-sectional view, the water-permeable polyester portion and the aluminum vapor-deposited portion in the bottle heat retaining device are arranged in this order from the bottle side toward the outside in the order of the water-permeable polyester portion, the aluminum vapor deposition film, the resin film, and the exterior material. A cold insulating sheet storing step of storing the cold insulating sheet between the membrane;
a water-absorbent sheet storing step of storing a water-permeable water-absorbent sheet between the water-permeable polyester portion and the cold insulating sheet in the bottle heat retaining device;
with
The water-absorbent sheet has a non-woven fabric seal portion disposed between two non-woven fabrics having water permeability, and at least the ends of the two non-woven fabrics are thermocompression bonded,
The resin film is provided with a long winding spring having a spring force in the winding direction, and the winding spring is made of special steel and stretches straight in the longitudinal direction. To provide a bottle heat retaining method characterized by:

Claims (4)

A bottle heat-retaining device capable of keeping the bottle at a low temperature relative to room temperature by winding it around the bottle,
The bottle heat retaining device is arranged in the order of a polyester part having water permeability, a water absorbent sheet, an aluminum vapor deposition film, a resin film, and an exterior material from the bottle side toward the outside in a cross-sectional view,
The water-absorbent sheet is disposed between two nonwoven fabrics having water permeability, and has a nonwoven fabric sealing portion in which at least ends of the two nonwoven fabrics are thermocompressed to each other. . 2. The bottle heat-retaining device according to claim 1, wherein a cold insulation sheet is arranged between said water-absorbent sheet and said aluminum deposition film. 3. The bottle heat retaining device according to claim 1, wherein the resin sheet has a winding spring having a spring force in a winding direction. A bottle heat-retaining method capable of keeping the bottle at a low temperature relative to room temperature by wrapping it around the bottle,
A cooling step of refrigerating or freezing the cold insulating sheet;
In a cross-sectional view, the water-permeable polyester portion and the aluminum vapor-deposited portion in the bottle heat retaining device are arranged in this order from the bottle side toward the outside in the order of the water-permeable polyester portion, the aluminum vapor deposition film, the resin film, and the exterior material. A cold insulating sheet storing step of storing the cold insulating sheet between the membrane;
a water-absorbent sheet storing step of storing a water-permeable water-absorbent sheet between the water-permeable polyester portion and the cold insulating sheet in the bottle heat retaining device;
A method for keeping a bottle warm, comprising:

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