JP2002045288A - Container for foaming drink - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beer mug generating the foam of beer poured into the mug in an excellent condition and allowing a user to enjoy the mug continuously with a pattern, characters, etc., drawn on the liquid surface by using the foam. SOLUTION: A foam generating means is laid on the inner bottom surface or inner bottom part of the mug. The foam generating means has a foam generating part for forming a sign, mark or pattern expressing a specific message, and the foam generating part consists of a rough surface generating such foam as nearly reproduces the form of the foam generating part with the aggregate of generated foam on the liquid surface. The rough surface of the foam generating part is a non-glazed part of the earthenware, or a non-glazed part treated with rough glazing. Further, the rough surface is treated with the sand-blast of 50-1000 meshes. In addition, in the rough surface, the average value of the equivalent diameter of projections of the binary image of the picked-up image of the rough surface is 4.5-40 μm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sparkling beverage container for holding a foamed beverage such as beer and a foam generating means used for the sparkling beverage container. In particular, the present invention relates to a container capable of maintaining a foam layer of a foamed beverage formed on a liquid surface for a long time, and a foam generating means used for the container.

[0002]

2. Description of the Related Art Conventionally, it has been said that a delicious beer must have a clear, amber liquid with a refreshing aroma and refreshing bitterness, as well as fine bubbles. The foam is evaluated for foaming, foam retention, foaming, fineness, and the like. (Junichi Kumada: Beer foam, biology and chemistry 13,
504-509 (1975))

[0003] The properties of liquids can be optimized by controlling the manufacturing and transport conditions, but foams are affected not only by such conditions, but also by the way of beer cups and the way they are poured into them. You. For this reason, various proposals have been made for beer cups that control the appearance of bubbles. For example, fine irregularities are formed on the inner peripheral surface of a cup to measure the generation of fine bubbles (Japanese Patent Laid-Open No. Hei 10-234549) (Japanese Patent Laid-Open No. 08-242999). (Japanese Unexamined Patent Publication No. 09-20619)
No. 1), an assembly of fine particles joined to the bottom of a container to maintain the generation of bubbles (Japanese Patent Application Laid-Open No. 08-252159)
No., a water-repellent layer or an oil-repellent layer provided on the surface of a glass cup to improve the residual foam (JP-A-2000-051044)
There is.

[0004] However, all of these methods are difficult or unsatisfactory in the production method of the cup, and thus a simpler production method and means for obtaining a good foam state are desired.

[0005] On the other hand, the vision of a glass for drinking a sparkling beverage such as beer is also one of the pleasures of drinking. As a way to enjoy the vision of the cup, a water-repellent film layer is provided on the outer surface of the cup, and patterns such as pictures and characters are configured with the film layer part,
A method in which a cold beer is poured and the pattern emerges white when the outer surface of the cup condenses (Japanese Patent Laid-Open No.
000-051044).

However, this method has a drawback that the raised pattern is disturbed when the hand holding the cup touches the pattern.

[0007]

DISCLOSURE OF THE INVENTION The present invention relates to a foamed beverage container capable of forming a pattern such as a picture and a character on a liquid surface by utilizing bubbles and having a continuous enjoyment, and a foam generating apparatus used in the foamed beverage container. It seeks to provide a means.

[0008]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a sparkling beverage container provided with a foam generating section on the inner bottom, the foam generating section having a predetermined shape for expressing a specific message. Another object of the present invention is to provide a foamed beverage container characterized in that an aggregate of generated foams has a foamed rough surface which substantially reproduces a predetermined shape of the foamed portion on the liquid surface of the foamed beverage.

[0009] The foam generator may be provided on an inner bottom surface of the container.

[0010] The container may be made of a baked product, and the rough surface may be made of a non-glazed portion of the baked product or a non-glazed portion of the baked product provided with a coarse or thin glaze.

The rough surface may be a glass surface, a plastic surface, or a metal surface subjected to sandblasting with 50 to 1000 mesh.

[0012] The foam generating section may be provided in foam generating means laid on the inner bottom. The foam generating means may be detachably installed on the inner bottom. The foam generating means may be mounted on the inner bottom. The foam generating means may be adhered to the inner bottom via an adhesive.

[0013] The foam generating means may include a pottery, and the rough surface may be formed by applying a coarse glaze or a thin glaze to a non-glaze portion of the roast or a non-glaze portion of the pottery.

The rough surface may have an average value of a circle equivalent diameter of the convex portion of the binarized image obtained by imaging the rough surface of 4.5 to 40 μm.

[0015] The gist of the present invention is that the foamed beverage container is provided to be laid on the inner bottom portion of the foamed beverage container, and has a foam generating portion, and the foam generating portion expresses a specific message. A foam generating means having a predetermined shape and a foam generating rough surface such that an aggregate of generated bubbles substantially reproduces the predetermined shape of the foam generating portion on the liquid surface of the sparkling beverage; It is in.

The foam generating means may have the rough surface on the front surface and an adhesive layer on the back surface. The adhesive layer may be a pressure-sensitive adhesive layer.

Further, the gist of the present invention is that the foamed beverage container is provided so as to be placed on the inner bottom portion of the foamed beverage container, and has a foam generating section, and the foam generating section expresses a specific message. A foam generating means having a predetermined shape and a foam generating rough surface such that an aggregate of generated bubbles substantially reproduces the predetermined shape of the foam generating portion on the liquid surface of the sparkling beverage. It is in.

[0018] The foam generating means may include a baked product, and the rough surface may be formed by applying a non-glazed portion of the baked product or a rough or thin glaze to the unglazed portion of the baked product.

The foam generating means may include a member made of glass, plastic, or metal, and the rough surface may be obtained by sandblasting the surface of the member.

[0020] The foam generating means may include a predetermined base, and the rough surface may be formed by attaching a plurality of particles to the upper surface of the base in a planar manner.

The foam generating means includes a porous member made of metal, glass, polymer, ceramic, or carbon.
The rough surface may consist of a surface of the porous member.

[0022] The rough surface may have an average value of the equivalent circle diameter of the convex portion of the binarized image obtained by imaging the rough surface of 4.5 to 40 µm.

[0023]

Embodiments of the present invention will be described with reference to the drawings. The beer cup with the sparkling beverage container 2 of the present invention shown in FIG. 1 is made of a baked product, and glaze is applied to at least the entire inner surface except for the heart mark on the inner bottom surface 4. In addition, pottery is a general term for ceramic products obtained by baking pottery clay including porcelain and porcelain. With such a configuration, when beer is poured into the sparkling beverage container 2, the unglazed portion formed as a heart mark becomes the foam generating portion 8, and the foam is continuously generated from the surface of the portion. The glazed area is covered with glaze on the as-baked wall, and the surface is smooth, and there is little bubble generation from that part, and foam is generated from the unglazed part. appear. Due to this bubble, the bubble generation part 8 looks like a heart symbol.
Also, the foam rises to the liquid level 12 of the beer, and the heart mark 10 made of the foam appears on the liquid level 12 in a floating manner. When the unglazed part is located in the center of the bottom of the beer cup, the mark made by the bubbles on the liquid surface can be seen more clearly.

In order to form a portion where the glaze has not been applied to the inner wall of the container, that is, a bubble generating portion composed of an unglazed portion, first,
Prepare a container made of pottery at the stage of unglazing, paste a masking sheet cut out of the part of the pattern corresponding to the part without glaze, paste it on the inner surface of the container, and apply a water repellent with a brush or spray etc. Apply to inner surface of container. Thereafter, when the sheet is peeled off, an inner surface in which a water repellent is applied to a portion of a pattern corresponding to a portion where no glaze is applied is obtained. Next, when the glaze mud is applied to the inner wall, the portion coated with the water repellent remains without being coated with the glaze mud. After that, when the container coated with the glaze mud is fired, the water repellent is removed by decomposition, burning, etc., and the unglazed portion is made.

In this manner, a vivid message pattern of bubbles is reproduced on the liquid surface by an extremely simple method of leaving a portion that is not glazed on the shape of a pattern expressing a message such as a symbol, a character, a code, and a pattern. You can do it.

As shown in FIG. 2, the sparkling beverage container 2a
According to a method of forming a smooth surface 4a on the inner bottom surface of a container for a foamed beverage, glaze is applied to the shape of a pattern expressing a message such as a symbol, a character, a code, a picture, and the like. The bubble generating portion 8a is not formed, and a bubble-free portion 12a is formed on the liquid surface in the form of a pattern, and a bubble-containing portion 10a is formed around the bubble generating portion 8a, so that the message pattern can be reproduced on the liquid surface. .

The glaze pattern may be drawn on a pottery ground with a brush or stamp. Further, as the foam generating portion, a pattern may be drawn on a bare ground of ceramics with a decorative mud having a predetermined particle size or coarse glaze and fired, and that portion may be used as the foam generating portion.

[0028] The message may be the name of the owner of the beer cup. Individual names and initials of members, such as families and groups, may be left in individual beer cups. It may be a number on Memorial Day. It may be a mark such as an organization. The pattern may be soothing when watching. The pattern may have some meaning or symbolize it.

When the portion left unglazed occupies a large portion of the bottom of the beer cup, foam is constantly supplied to the liquid surface, improving the appearance and improving the taste of the beer. I do.

The surface of the bubble generating portion may be a surface that is bare ground, or may be a surface that is baked by applying a liquid medicine as a thin glaze emulsion to the unglazed surface. When a liquid medicine is applied, the amount of foam generated will be less than in the case of unglazed containers, but the time of foam retention will be longer,
Also, the embossing of the pattern due to the generation of bubbles becomes beautiful. or,
If the particle size of the porcelain clay used is too small, the rate of disappearance of bubbles during repeated use becomes very high. Conversely, if the particle size of the clay is too large, the amount of foam generated will increase, but the disappearance rate of the foam will also increase. When the clay having a particle size of 35 to 70μ is used, the disappearance rate of the foam is minimal. It turned out to be preferable. In addition, it was found that when coarse particles such as feldspar and silica were mixed with clay as clay, the amount of bubbles generated increased. In addition, the firing temperature of the clay is 1100 to 130.
When the temperature was as high as 0 ° C., the amount of generated bubbles was smaller than when the firing temperature was lower than that, but it was found that the rate of disappearing bubbles was reduced, which was preferable.

Further, when a liquid medicine is applied and baked during the unbaking stage, the rate of disappearance of bubbles in a container obtained by using fine porcelain clay having a particle size of 35 μm or less becomes extremely small, and a preferable bubble generating portion can be formed. I understood. When a liquid medicine is applied to the unglazed wall and fired, the unevenness of the wall is partially connected with glaze, which is a component of the liquid medicine, to provide smooth irregularities. The remaining part of the wall in such a state without applying a glaze thereon is a fine glaze part. The method of forming the shape of the bubble generating portion composed of the fine glaze portion in the container is the same as the method of forming the shape of the bubble generating portion composed of the unglazed portion using the above-described water repellent. A container provided with a bubble generating portion composed of a fine glaze portion can obtain a fine and vivid message pattern by bubbles having a very low disappearance rate.

Another embodiment of the present invention will be described with reference to the drawings. In the sparkling beverage container 2 c of the present invention shown in FIG. 3, the foam generating means 100 is provided on the inner bottom 3 of the cup 22. In the present specification, the inner bottom refers to a bottom portion including the inner bottom of the sparkling beverage container. Foam generating means 100
Has a disc shape and is made from baked pottery. The foam generating means 100 has a glaze applied to at least the entire upper surface except for the heart mark on the upper surface. In addition, pottery is a general term for pottery including pottery and porcelain. With this configuration, when beer is poured into the sparkling beverage container 2c, the unglazed portion formed as a heart mark becomes the foam generating portion 8, and foam is continuously generated from the surface of the portion. The smooth surface 14 on which the glaze is applied is covered with glaze on the as-baked wall surface, the surface is smooth, and there is little generation of bubbles from that part, from the part where the glaze is not applied Generates bubbles. Due to this bubble, the bubble generation part 8 looks like a heart symbol. Also, the foam rises to the liquid level 12 of the beer, and the heart mark 10 made of the foam appears on the liquid level 12 in a floating manner.

In order to form a portion where the glaze is not applied on the upper surface of the foam generating means 100, that is, a bubble generating portion formed of a non-glazed portion, first, a disk made of a pottery at the stage of unglazing is prepared, and the glaze is not applied. A masking sheet obtained by cutting out a portion of the pattern corresponding to the portion is attached to the upper surface of the disk, and a water repellent is applied to the upper surface of the disk with a brush or spray. After that, when the sheet is peeled off, a surface having a water repellent is applied to a portion of the pattern corresponding to an unglazed portion. Next, when the glaze mud is applied to the disk, the portion coated with the water repellent remains without being coated with the glaze mud. Thereafter, when the disk coated with the glaze is fired, the water repellent is removed by decomposition, combustion, etc., and a part without glaze is formed.

In the present invention, as in the case of the sparkling beverage container 2d in FIG. 4, glaze is applied to the upper surface of the foam generating means 101 in the form of a pattern expressing a message such as a symbol, a character, a sign, or a picture. According to the method of forming a smooth surface 14a, a portion of the upper surface of the bubble generating means 101 where the glaze is not applied becomes the bubble generating portion 8a, and the liquid surface has a bubble-free portion 12a in the form of a pattern. , A bubbled portion 10a is generated, and the message pattern can be reproduced on the liquid surface. The outer contour of the bubbled portion 10a is substantially equal to the outer contour of the upper surface of the bubble generating means 101.

The glaze pattern may be obtained by drawing a glaze pattern on the ground of the pottery using a brush or a stamp. or,
As the foam generating section, a pattern may be drawn on the ground surface of the baked product with decorative mud having a predetermined particle size or coarse glaze and fired, and that portion may be used as the foam generating section.

In the embodiment of the present invention as shown in FIGS. 3 and 4, foam is generated directly on the inner bottom (also referred to as the bottom in the present specification) of the sparkling beverage container (also referred to as the container in the present specification). It is not necessary to form a part, and usually, a bubble generating part is formed on a plate-like foam generating means, and this foam generating means may be placed on the bottom of the container or fixed, so that the processing of the foam generating part is extremely difficult. It will be easier. Also, various kinds of foam generating means can be manufactured in advance, stocked, and commercialized in combination with a container according to demand. Furthermore, since the container combined with the foam generating means has no restrictions on the material, manufacturing method, and processing when the foam generating portion is formed directly on the inner bottom of the container, using an extremely wide variety of containers selected from general containers. The present invention can be implemented. For example, since the shape of the bubble generating means of the present invention may be plate-like or flake-like, the processing of the body and the pattern is much easier than processing the pattern on the bottom of the container. Further, since the foam generating means is lighter and less bulky than the container, it is convenient for storage, transportation and carrying. A wide variety of foam generating means can be prepared and applied to one container one after another. The foam generating means may be formed in a dish shape or the like, and may be used for other purposes such as a dish plate and a coaster.

FIG. 5 is a sectional view showing an embodiment in which the foam generating means is laid at the bottom of the container. In FIG. 5, reference numerals 18a, 18
b, 18c, 18d, and 18e are foam generating parts. FIG.
(A) shows the foam generating means 1 over the entire inner bottom of the container 22a.
00a is placed. In FIG. 5 (b), a bubble generating means 100b is mounted on a part of the inner bottom of the container 22b. FIG.
(C) shows the bubble generating means 100c in the inner bottom 11 of the container 22c.
Is placed, but not all portions of the back surface of the bubble generating means 100 c are in contact with the inner wall surface of the inner bottom portion 11. Such an embodiment is also effective. FIG. 5D shows a bubble generating means 100d having an H-shaped cross section. Such an embodiment,
The distance between the liquid surface and the bubble generating section 18d can be shortened, and the pattern of bubbles on the liquid surface becomes clear.

The foam generating means may be simply placed on the bottom of the container. However, as shown in FIG. 5 (e), the foam generating means is attached with an adhesive 30 sandwiching the back of the foam generating means 100e and the bottom of the container 22e. May be attached. Thus, even if the container 22e is tilted or vibrated, the position of the bubble generating means with respect to the container does not change, and a stable bubble pattern is obtained on the liquid surface. The bonding with the adhesive may be permanent. Using a pressure-sensitive adhesive such as rubber, acrylic, or silicone, a layer of this adhesive is formed on the back surface of the foam generating means in advance, and it is detachable, that is, temporarily attached to the bottom of the container. You may paste it. In this case, a bubble pattern can be enjoyed by various containers using one bubble generating means. A wide variety of foam generating means can be prepared and applied to one container one after another.

FIG. 6 shows an example of the mode of the bubble generating means in the present invention. In FIG. 6, reference numerals 19a, 19b, 19
c, 19d, 19e, and 19f are foam generating parts. FIG.
In (a), the bubble generating means 101a has a disk shape and is suitable for being spread all over the bottom of a cylindrical container. FIG.
In (b), the foam generating means 101b has a rectangular plate shape, and is suitable for laying a plurality of foam generating means at the bottom of one container. In FIG. 6C, the bubble generating means 101c has a plate shape, and a bubble generating portion is provided on the entire surface. In this case, the shape of the bubble generating means in plan view becomes the pattern of the bubble generating portion as it is. FIG. 6D shows that the bubble generating means 101d is provided with a handle 50.
Is provided. The handle 50 is preferably used when taking the foam generating means 101d in and out of the container. FIG. 6 (e)
Has a disk shape in which the bubble generating means 101e has an opening in the center. When the center of the bottom of the container is raised, the opening fits into the raised portion, and the foam generating means can be stably laid on the inner bottom of the container. In FIG. 6F, the bubble generating means 101f has a bubble generating portion on the front surface, and the pressure-sensitive adhesive layer 52 is provided on the rear surface. Thereby, when the foam generating means is laid on the inner bottom of the container, the foam generating means can be adhered to the inner bottom surface via the pressure-sensitive adhesive layer 52, and the foam is stably generated on the inner bottom of the container. Means can be laid. Also, since this adhesive can be easily peeled off, it is suitable for temporary use of the bubble generating means.

FIG. 7 shows the bubble generating means 102, 103, 104.
Is made of unglazed or thinly glazed pottery, and the rod-shaped material is bent or connected to form letters and symbols as a whole. Such a foam generating means 102 can be made by kneading potter's clay into a rod shape, forming it into a predetermined character or symbol, and baking without glaze or with thin glaze. Further, such a baked product can be produced by punching a kneaded clay with a punching die into a predetermined shape, followed by baking. FIG.
The cross section may be substantially square as shown in FIG. FIG.
It may be substantially circular as shown in (b) and (c). In the foam generating means of this embodiment shown in FIG. 7, since bubbles are generated from almost the entire outer surface of the foam generating means when used, the shape of the foam on the liquid surface is clear, and the foam has a long lasting shape. I do.

The foam generating means of such a form can also be formed of a member obtained by processing a porous body such as a sintered metal into a predetermined shape by molding or cutting. The porous body may be a polymer such as porous glass or plastic having open cells. It may be a natural or artificial ceramic porous body. It may be a porous body made of a fiber aggregate such as paper and felt. The fiber may be a fiber made of a material such as a natural polymer, a synthetic polymer, a metal, and carbon. The porous body may be a carbon porous body such as charcoal. The carbon porous body also contributes to cleaning of the liquid and is preferable.

The porous member of such a form may be used as a bubble generating means as it is, but a porous member of such a form adhered to the surface of a substrate by an adhesive means is used as the bubble generating means. You can also. It is also possible to use a material obtained by crushing a porous body, reassembling it as a finely divided member on a surface of a predetermined substrate in a predetermined pattern, and affixing the same to the surface of a predetermined substrate.

As the rough surface of the foam generating portion in the foam generating means of the present invention, particles having an average diameter of about 5 to 100 microns are formed on a surface of a base having a predetermined shape such as a plate. May be attached in a planar manner by the adhesive means. The material of the particles is not particularly limited as long as it is insoluble in water.
Examples include sand, glass powder, granular plastic, granular metal, granular carbon, and the like.

According to such an embodiment as shown in FIG. 7, various bubble generating means for representing a single character or shape are prepared, combined and placed on the bottom of the container, and a message is displayed as a whole. You can also do so.

In the present invention, the bubble generating means may be made of a glass plate, a metal plate or a plastic plate.
The surface of a glass plate, a metal plate, or a plastic plate can be sandblasted to make a rough foaming surface.

In the present invention, the plastic plate may be in the form of a film. One surface of the plastic film can be roughened by sandblasting or imprinting transfer, and the other surface can be attached to the inner bottom of the container using an adhesive such as a double-sided adhesive tape. Before pasting on the inner bottom of the container,
An adhesive such as a hot melt adhesive or a pressure-sensitive adhesive may be applied to the other surface in advance. The film-like foam generating means is lightweight and bulky, and is convenient to carry and store. or,
Even if there are some irregularities on the bottom of the container, it is easy to adjust to the shape. Further, by applying an adhesive, the adhesive can be easily attached to the bottom of the container on the spot where it is conceived.

As described above, the shape of the bubble generating means is not limited to a disk, but may be a square plate. Other polygonal plate shapes may be used. When the foam generating means is in the form of a board or a plate, the thickness thereof is preferably 0.05 to 20 mm, which is convenient in terms of production and handling, and is preferred. Except when the bubble generating means is a film, the thickness is preferably 0.5 to 10 mm, which is more convenient and more preferable in manufacturing and handling.

The shape of the foam generating means of the present invention is not limited to a plate shape, but may be any shape as long as the foam generating rough surface is positioned as the upper surface of the foam generating means when the foam generating means is laid on the inner bottom of the container. Does not matter.

The foam generating means of the present invention may be laid directly on the inner bottom surface of the container. When it is laid on the inner bottom of a conical container with a conical opening as shown in FIG. 5 (c), it may be locked on the inner surface of the container. Alternatively, it may be suspended from the upper edge of the container by a suspension means.

The following shows the results of experiments in which the relationship between the state of the inner surface of the container and the state of the foam was determined. The experiment was conducted by pouring beer into the same 15 kinds of ceramic containers having different shapes under different manufacturing conditions. As for the beer, a 10-liter barrel of Asahi draft beer was used, the temperature of the beer was 4 ° C., and the gas pressure and the injection rate were kept constant by using a simple type server. The containers used in the experiments were thoroughly washed with a neutral detergent before use, rinsed with ion-exchanged water and dried.

Table 1 shows the results of an experiment on the state of foam when beer was poured into a porcelain container manufactured under various conditions and the state of the inner surface was changed.

[0052]

[Table 1]

The amount of foam generated was measured by measuring the height of each foam immediately after pouring the beer into the container, elapse of 10, 30, 60, and 120 seconds, and measuring the height of the foam. Of the foam was determined, and the amount of foam was determined. In Table 1, the particle size of the porcelain clay is such that the relative amount of particles obtained by using a laser diffraction type particle size distribution analyzer (SALD-3000 manufactured by Shimadzu Corporation) is 90% when the relative amount of particles is accumulated from the smaller one. It is. Although this value is larger than the average diameter, the 90% cumulative value is related to the generation of bubbles because the large diameter particles contribute greatly to the generation of bubbles.
In addition, the liquid medicine “Yes” in the table indicates that a thin emulsion of clay glaze was applied, and “Fine” indicates that a thinner emulsion of clay glaze was applied. It is closer to the state of the wall of the unglazed container than in the case of the medicine “Yes”. "Yes *" indicates that a clay glaze emulsion having a concentration close to that of a normal glaze treatment was applied.
In this case, the state of the wall surface is closer to the state of the wall surface of the container which has been subjected to the usual glaze treatment than the case where the liquid medicine is “present”. The columns of feldspar / silica show the cases where coarse particles of feldspar or silica are mixed in the clay (with) or not (without). If feldspar / silica is mixed, the unevenness becomes larger than the wall of the unglazed container.

The foam disappearance rate in Table 1 is the average rate at which the volume of the foam decreases. Also, the degree of unevenness is
This is the average value of the equivalent circle diameter of the convex portion obtained from a binarized image obtained by photographing the rough surface with a camera having a microscope function, that is, a digital microscope. This value is a digital microscope (manufactured by KEYENCE, 175 times)
The image of the reflected light of the inner surface of the container taken by the computer is taken into a computer and the image processing software V20 (Toyobo: TO
The reflected light corresponding to the unevenness on the inner surface of the container is binarized by the algorithm of YOBO Image Analyzer, and the distribution of the area of the portion having the shape corresponding to the convex portion of the rough surface in the binarized pixel pattern of light and shade. ,
The average value is determined, the diameter of a circle having the same area as the average value is determined, and this is displayed as a unit of μ as the degree of unevenness. The actual calculation is performed using the number of pixels as a unit, and is finally converted to the actual size. The binarization is performed by setting a threshold value so that the binarized pattern corresponds to a visual pattern of a real image.

"Glass" and "Glass 40" in the column of the sample number in Table 1 indicate the case made of glass and the inner surface of the glass container.
The containers roughened by sandblasting the mesh are shown. Glass 50, Glass 80, Glass 200
”,“ Glass 600 ”,“ Glass 800 ”,“ Glass 1000 ”,“ Glass 1200 ”are 50, 8 respectively on the inner surface of the glass container.
This shows a container roughened by sandblasting of 0, 200, 600, 800, 1000, 1200 mesh. "PMMA50" and "PMMA1000" indicate containers obtained by sandblasting the inner surface of a container made of polymethyl methacrylate with 50 and 1000 meshes, respectively, to roughen the surface.

"Aluminum 50" and "Aluminum 1000" indicate containers obtained by sandblasting the inner surface of an aluminum container with 50 and 1000 meshes, respectively.

The glass container, the container made of polymethyl methacrylate, and the container made of aluminum have an inner bottom surface of 50 to 1 mm.
When a 000 mesh sandblasted message pattern was made by masking, the pattern of bubbles generated from the pattern part could be reproduced on the liquid surface. When a message pattern with a sandblast process of less than 50 mesh was formed on the inner bottom surface, the generation of bubbles was rapid and rough, the outline of the pattern reproduced on the liquid surface was not clear, and the bubbles disappeared quickly. When a message pattern with a sandblast process exceeding 1000 mesh was formed on the inner bottom surface, it was difficult to discriminate the pattern reproduced on the liquid surface with less generation of bubbles.

Further, in addition to the container made of polymethyl methacrylate, polyethylene resin, polypropylene resin,
5 on the inner bottom of a plastic container such as polystyrene resin
When a message pattern with a sandblasting process of 0 to 1000 mesh was made, a bubble pattern generated from the pattern portion could be reproduced on the liquid surface. In the case of the plastic container, the duration of the pattern was shorter than that of the ceramic container, but the pattern of the foam on the liquid surface was clear.

The above experiment was conducted with a rough surface provided on the inner bottom surface of the container. However, a similar rough surface was provided on the surface of the plate-like foam generating means, and this foam generating means was placed on the bottom of the container. The same result was obtained in an experiment in which the state of bubbles was similarly observed.

In the present invention, as a method of providing a rough surface on the inner bottom surface of the plastic container or the surface of the foam generating means, a rough surface is provided on a corresponding portion of a mold for injection molding the container or the foam generating means. In addition, the container or the foam generating means may be manufactured by injection molding. Further, a template having a predetermined shape and a rough surface and / or a plastic container thereof is heated, and the template is pressed against the inner bottom surface of the plastic container, and the rough surface is formed on the plastic container. It may be applied by shaping on the inner bottom surface.

In addition to the aluminum container, when a message pattern is formed by sandblasting a 50 to 1000 mesh mesh on the inner bottom surface of a metal container such as stainless steel or copper or the surface of the bubble generating means, the pattern is obtained. The pattern of the bubble generated from the portion was reproduced on the liquid surface. In the case of metal containers, the amount of foam generated was shorter than that of ceramic containers,
The pattern of bubbles on the liquid surface could be discriminated sufficiently.

In the present invention, as a method for imparting a rough surface to the inner bottom surface of the metal container or the surface of the foam generating means, the inner bottom surface of the container may be sanded. Grooves may be formed in multiple directions at a fine pitch using a lathe or the like. A predetermined portion of the metal surface may be corroded and roughened by a technique such as etching.

Further, irrespective of the material of the container or the bubble generating means, the rough surface of the bubble generating portion is photographed with a digital microscope as described above, and the equivalent of the circle of the convex portion obtained from the binarized image of the photographed image. When the average value of the diameter was 4.5 to 40μ, the shape of the inner bottom surface or the rough surface of the bubble generating means was continuously reproduced on the liquid surface. When the average value of the circle-equivalent diameter of the projections was 8 to 30 μ, the shape of the rough surface of the inner bottom surface was continuously and stably reproduced on the liquid surface.

FIG. 8 shows the results of measurement of foaming, that is, the amount of foaming, and the rate of disappearance of foaming when beer is repeatedly poured in different types of containers. The horizontal axis of the graph
The fifth is the number of operations of pouring beer into a container, leaving it to stand for 1 minute, and then emptying the container. Similarly, numbers 5, 9, and 13 below the horizontal axis indicate the pottery of sample numbers 5, 9, and 13 in Table 1, and “glass” and “glass 8”.
The display of "0" is the same as in Table 1.

In Sample 9, the initial foam disappearance rate is low, and the foam disappearance rate does not increase even if beer is repeatedly poured, and the foam has good foam retention. The container obtained by using the porcelain clay having a particle size of 35 to 70 μm shows a good bubble generation state in view of the balance between the amount of generated bubbles and the rate of disappearing bubbles. Sample 13 has the lowest initial bubble disappearance rate. When the clay particles are finer than 35 μm and are sprayed with a drench, the initial foam disappearance rate is very low. Regarding the reduction of the initial foam disappearance rate, the particles of the porcelain clay may be as fine as possible within an industrially usable range.
0 μm or more is preferable.

In addition, as a whole, the as-baked one or the one subjected to sand blasting on glass generates excessive bubbles from an aesthetic point of view. can get. In addition, if bubbles are excessively generated, such as a baked product or a product obtained by sandblasting glass, carbon dioxide in the beer is released too much, which is not the best as a beer cup container.

Table 2 shows the time until the foam disappears for each pouring when the beer is poured repeatedly by changing the type of container.

[0068]

[Table 2]

The time until the foam disappears is the time from when the foam height becomes maximum to when the foam disappears and the liquid level of the beer can be confirmed. The contents of the display on the horizontal axis in the figure are the same as those in FIG. The time until the bubbles disappear in each sample 9 is the longest, and the bubbles are good. In sample 5, the time until the first bubble disappears is slightly shorter, but becomes longer from the second time, and the time until the disappearance is stabilized in the subsequent times. Sample 13 has a very long time until the first bubble disappears, but the bubble retention becomes worse after the second time.

Regarding the amount of foam generated and the foam retention, as shown in FIG. 8, the glass with no roughened surface had a visually most preferable amount of foam generated in the first dry state of about 20%. However, it decreased gradually with repeated use, and reached 6.5% at the fifth use. As the foaming decreased, the disappearance time of the foam became shorter as shown in Table 2, and the foam disappeared in the fifth time in 24 seconds. In the roughened glass, the foaming sharply decreased for the second time, but thereafter stabilized to a constant value. The initial foam disappearance rate was higher than that of glass without roughening.

In the as-baked container, foaming is reduced with each repetition, as in the case of the glass-surface-treated container.
It stabilized after the third time. The bubble disappearance rate at the time of stabilization was lower than that of glass without rough surface treatment and that of glass having rough surface treatment. The experiments described above with reference to FIG. 8 and Table 2 were conducted by providing a rough surface on the inner bottom surface of the container. The same result was obtained in an experiment in which the sample was placed on a sample and the state of the foam was similarly observed.

At the gas-solid interface, it is known that gas molecules are adsorbed on the solid surface by relatively weak forces, such as Van der Waals forces. Further, when the adsorbent (the inner wall of the via cup) has micropores such as capillaries, it is said that adsorption also occurs on the inner surface of the holes.
Surface area of inner wall of container used in this experiment (gas adsorption seat)
In consideration of the above, the surface-roughened glass has a larger surface area of the inner wall as compared with the glass without the surface-roughening treatment, and the surface area of the inner wall of the ceramic container is larger than that of the glass having the roughened surface. Above all, the surface area of the as-baked beer cup inner wall is very large. Therefore, there is also a considerable difference in the amount of air adsorbed there. It is also known that the surface energy is higher on a rough surface than on a smooth surface, and the interface between a gas and a solid is wetted to form a smooth surface, thereby reducing the surface energy. That is, the amount of air adsorbed on the surface of the inner wall is different between the glass without the rough surface treatment and the glass with the rough surface treatment, and this is considered to be the main cause of the difference in foaming. 50
In the case of glass that has been sandblasted and roughened with particles of up to 1000 mesh, the cause of the sudden worsening of foaming from the second time onward is that the inner wall gets wet with beer, the air is expelled, and the roughened surface becomes closer to a smooth surface It is because. In the case of a ceramic container, a large amount of air to be the core exists deep into the container material, and even if beer is poured and wet, the beer is gradually absorbed by the material and a rough surface is formed again. is there. For this reason, although the bubbling after the second time is smaller than that in the first time, the foam has better foam retention than a roughened glass having no ability to absorb beer itself. That is, the porosity of the material contributes to foam retention. Therefore, even if the glass surface is simply scratched by sandblasting or the like, or fine particles are attached, the foam retention will not be improved unless the material itself has porosity. These phenomena also apply to other sparkling beverages such as beer and other low-malt beer and cider.
Further, the fine holes in the inner wall of the as-baked container are electrically connected to the outer wall surface in the wall, and fine gas flows in and out through this conductive path. This degree of gas conduction is considered to be a factor that promotes the generation of bubbles.

[0073]

The foamed beverage container obtained by the present invention has good foaming properties of foamed beverages such as beer and the like, and makes patterns such as pictures and characters on the liquid surface by utilizing foams. , Can be enjoyed continuously.

The foam generating means of the present invention can be applied to a general sparkling beverage container to form a pattern such as a picture or a character on the liquid surface by using the foam, so that it can be enjoyed continuously. Further, the foam generating means of the present invention is lightweight, not bulky, easy to manufacture, and convenient for storage, transportation and carrying.

The foam generating means of the present invention is designed so that a pattern such as a picture or a character can be formed on a liquid surface by using foam and can be enjoyed continuously, and is detachably applied to a general foamed beverage container. I can do it. Further, one foam generating means can be easily and sequentially applied to various kinds of containers.

The foam generating means of the present invention uses a variety of foam generating means to prepare a pattern such as a picture or a character on the liquid surface by using bubbles and to continuously enjoy it.
Or, it can be easily and sequentially applied to a plurality of containers in a detachable manner.

The bubble generating means of the present invention is provided with a plurality of bubble generating means by preparing a pattern such as a picture and a character on a liquid surface by using bubbles and continuously enjoying the pattern.
By simultaneously laying and applying them in the container and changing the combination of the foam generating means to be laid, the combination of patterns can be enjoyed.

[Brief description of the drawings]

FIG. 1 is a schematic view of a container for a sparkling beverage of the present invention.

FIG. 2 is a sketch drawing of another sparkling beverage container of the present invention.

FIG. 3 is a sketch drawing of yet another sparkling beverage container of the present invention.

FIG. 4 is a sketch of a sparkling beverage container according to still another embodiment of the present invention.

5 (a) to 5 (e) are cross-sectional views showing various aspects of a state in which foam generating means is laid on the sparkling beverage container of the present invention.

6 (a) to 6 (f) are sketches showing various aspects of the foam generating means of the present invention.

7 (a) to 7 (c) are perspective views showing various aspects of the foam generating means of the present invention which are different from those of FIG. 6;

FIG. 8 is a graph showing the number of times beer is repeatedly poured into various sparkling beverage containers, the amount of generated foam, and the results of measuring the rate of disappearance of foam.

[Explanation of symbols]

2, 2a, 2b, 2c; containers for sparkling beverages 3, 11; inner bottom 4: inner bottom 4a, 14a; smooth surfaces 8, 8a, 18a, 18b, 18c, 18d, 18e,
19a, 19b, 19c, 19d, 19e, 19f; bubble generating portion 10a; bubble portion 12; liquid level 12a; bubble-free portion 30; adhesive 52; pressure-sensitive adhesive layer 100, 100a, 100b, 100c, 100d, 1
00e, 101, 101a, 101b, 101c, 10
1d, 101e, 101f, 102, 103, 104;
Foam generation means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Nakajima 498, Nagano, Shigaraki-cho, Koga-gun, Shiga Prefecture Inside the Shigaraki Ceramics Technology Testing Center, Shiga Prefectural Institute of Technology (72) Hiroaki Takahata 498, Nagano, Shigaraki-cho, Koga-gun, Shiga Shiga Prefectural Industrial Technology Center Shigaraki Ceramics Technology Testing Center (72) Inventor Kimiko Otani Kyoto Prefectural University, Kyoto Shimogahanki-cho, Kyoto Prefecture F term (reference) 3B001 AA02 CC02 DB02 3E033 AA08 BA01 BA07 BA13 DD01 EA07 GA02

Claims (19)

[Claims] 1. A foamed beverage container provided with a foam generating portion at an inner bottom portion, wherein the foam generating portion has a predetermined shape expressing a specific message, and an aggregate of the generated foam is a liquid of the foamed beverage. A foamed beverage container comprising a foam-generating rough surface that substantially reproduces a predetermined shape of the foam generating portion on the surface. 2. The foamed beverage container according to claim 1, wherein the foam generating section is provided on an inner bottom surface of the container. 3. The container according to claim 2, wherein the container is made of a baked product, and the rough surface is made of a non-glazed portion of the baked product or a non-glazed portion of the baked product provided with a coarse glaze or a thin glaze. For sparkling beverages. 4. The foamed beverage container according to claim 2, wherein the rough surface is a glass surface, a plastic surface, or a metal surface subjected to sandblasting with a mesh of 50 to 1000 mesh. 5. The foamed beverage container according to claim 1, wherein the foam generating section is provided on foam generating means laid on the inner bottom portion. 6. The foamed beverage container according to claim 5, wherein the foam generating means is detachably provided on the inner bottom portion. 7. The foamed beverage container according to claim 5, wherein the foam generating means is placed on the inner bottom portion. 8. The foamed beverage container according to claim 5, wherein the foam generating means is adhered to the inner bottom portion via an adhesive. 9. The foam generating means includes a pottery, and the rough surface is formed by applying a rough glaze or a thin glaze to a non-glaze portion of the roast or a non-glaze portion of the pottery. A container for a sparkling beverage according to any one of claims 1 to 8. 10. The rough surface according to claim 1, wherein an average value of a circle equivalent diameter of a convex portion of the binarized image obtained by imaging the rough surface is 4.5 to 40 μ. A container for a sparkling beverage according to item 1. 11. A foamed beverage container, wherein the foamed beverage container has a foam generating portion, the foam generating portion having a predetermined shape expressing a specific message, and a generated foam. Characterized by the fact that the aggregate of (1) comprises a foam-generating rough surface that substantially reproduces the predetermined shape of the foam generating section on the liquid surface of the sparkling beverage. 12. A foam generating means according to claim 11, wherein said rough surface is provided on a front surface and an adhesive layer is provided on a back surface. 13. The foam generating means according to claim 12, wherein said adhesive layer is a pressure-sensitive adhesive layer. 14. A foamed beverage container provided on the inner bottom portion of a sparkling beverage container, the foamed beverage container having a foam generating portion, wherein the foam generating portion has a predetermined shape expressing a specific message and is generated. A foam generating means, wherein the aggregate of foams has a foam-generating rough surface that substantially reproduces a predetermined shape of the foam generating portion on the liquid surface of the sparkling beverage. 15. The method according to claim 11, further comprising a porcelain product, wherein the rough surface is made of a non-glazed portion of the baked product or a rough or thin glaze applied to the non-glazed portion of the baked product. The foam generating means according to the above. 16. A member including a member made of glass, plastic, or metal, wherein the rough surface is obtained by sandblasting the surface of the member.
15. The foam generating means according to any one of 1 to 14. 17. The method according to claim 11, further comprising a predetermined base, wherein the rough surface is formed by attaching a plurality of particles to the upper surface of the base in a planar manner. The foam generating means according to the above. 18. The method according to claim 11, further comprising a porous member made of metal, glass, polymer, ceramic, or carbon, wherein the rough surface comprises the surface of the porous member. Bubble generating means. 19. The rough surface according to claim 11, wherein an average value of a circle equivalent diameter of a convex portion of the binarized image obtained by imaging the rough surface is 4.5 to 40 μ. The foam generating means according to the above.