JPH0637223B2 - Package for leaching active ingredient - Google Patents

Description

TECHNICAL FIELD The present invention relates to a package for leaching an active ingredient, more specifically,
For example, black tea leaves are stored in a filter paper bag,
This paper bag is soaked in hot water to leach black tea, like a so-called tea bag, it contains microscopic substances containing active ingredients such as flavor components, and also functions as a filter to leach this active ingredient. The present invention also relates to a package having both of the above.

[Conventional technology]

There is a beverage in which dried tea leaves such as black tea, green tea or oolong tea are put in hot water to infuse active ingredients such as flavors and the like from the tea leaves and drink them. In recent years, a tea bag in which tea leaves are contained in a filter paper bag has been developed and widely used so that these beverages can be easily prepared.

In addition, recently, ground coffee beans have been stored in a package partially using the same filter paper material as the tea bag, and the package is placed on a coffee cup or the like. It has also been developed that hot water is poured from the top of the package to brew the flavor components and the like in the coffee beans and the coffee liquid is dripped into the cup through the filter paper material portion.

[Problems to be Solved by the Invention]

However, in any of the above-mentioned tea leaves, etc., the scent component is likely to disappear (vaporize) when exposed to air, and is easily deteriorated due to the influence of oxygen and moisture in the air, so that the filter paper portion is permeable. With the package having the above-mentioned, the quality immediately deteriorated, and long-term storage was impossible. In particular, coffee bean powder loses its flavor component and loses its commercial value if it is exposed to the air for a long time.

Therefore, the package having the filter paper part as described above is housed in an outer bag, such as an aluminum foil, which has excellent gas barrier property and moisture barrier property, and has a tight sealing property, so as to block the outside air and prevent the invasion of moisture. However, long-term storage is possible.
However, since each tea bag and the like is contained in an outer bag, it is very troublesome to break the outer bag and take out the tea bag. In particular,
Since the outer bag is made of a relatively thick one or a strong one in order to tightly seal tea leaves and the like, it has a drawback that the outer bag is difficult to break. In order to make it easier to break, a structure such as a notch or a picking portion is provided, but this causes a problem that the structure of the outer bag becomes complicated and the cost becomes high.

Therefore, the object of the present invention is, as described above, a fine substance such as black tea or coffee bean powder is contained in a package having a filter material in at least a part thereof, and hot water or the like is kept in the package. Pour out to infuse active ingredients such as flavors,
In a package for leaching an active ingredient, it is possible to reliably prevent quality deterioration due to oxidation and moisture of the fine particles, and to provide a package that is easy to use and does not need to be broken like the outer bag described above. .

[Means for Solving the Problems]

In order to solve the above problems, an active ingredient leaching package according to the present invention includes a fine material that is immersed in a liquid and leaches out the active ingredient, and a filtering material that does not allow the fine material to pass but allows the liquid and the active ingredient to pass. In a package in which the active ingredient is leached from the fine material while the fine material is packaged and housed in the filter material, one of the filter materials is a filter material subjected to a sealing treatment with gelatin as the filter material. Take the form used,
The other is that the fine material is enclosed inside a gelatin bag inside the filter medium.

Fine substances that are soaked in liquid to leach active ingredients include tea leaves such as black tea, green tea, and oolong tea, or coffee bean powder,
There are various types of beverages that can be obtained by soaking in hot water. In addition to fine substances for beverages, for adding seasoning such as vinegar and liquor to active ingredients that add flavor and scent or medicinal to liquids, and for taking soup and dashi stock, for cooking It may be any one that can obtain a liquid containing some useful component by leaching, such as one for adding a liquid containing an active ingredient serving as a seasoning. Depending on the nature of the fine particles for leaching the active ingredient, the vaporizing component and the harmful component which should block the contact are different, and the sealing performance such as gas barrier property required for the sealing material is also different.

As the liquid used for leaching the active ingredient from the fine substance, that is, the solvent for leaching, in the beverage such as black tea, it is boiling water or hot water, but depending on the active ingredient to be leached from the fine substance, it has a relatively low temperature. Water and liquids other than water, such as sake, may be used.

As with conventional tea bags, the filter material used is a filter paper-like material made of paper, non-woven fabric, etc., and the contained fines cannot pass through, but the leaching solvent or the active ingredient leaches out from the fines. The liquid component used should have fine holes that allow it to pass through.

As the sealing material, the fine substance for leaching the active ingredient does not escape the scent and other vaporized components, and keeps the fine substance in a good state such as gas barrier property or moisture resistance to prevent the invasion of oxygen and moisture from the outside. It must have a combination of various performances required for storage, that is, have a sealing property, and must be soluble such that it can be dissolved in a leaching solvent such as hot water when the active ingredient is leached from a fine substance. Furthermore, it is also necessary to use an edible material that does not adversely affect the human body when the sealant dissolved in the leaching solvent is eaten or drunk with the active ingredient. What kind of gas component is required to be hermetically sealed, and what kind of liquid is required to be soluble is determined by the type of fine substance to be contained, and the properties suitable for each fine substance are used. Use one.

In the case of this invention, in order to sufficiently satisfy the above-mentioned requirements,
Very suitable gelatin is used as a sealant. Gelatin or gelatin film has good moisture permeation suppression, low oxygen permeability, is soluble in warm water, etc., and is obtained from natural animal tissues. No problem. As the gelatin, either acid-treated gelatin or alkali-treated gelatin can be used, and its pH value and production conditions are not particularly limited. However, for example, when it is applied to a package of black tea or green tea, turbidity and precipitation occur near the isoelectric point of each gelatin, so it is desirable to avoid these pH ranges when using.
For coffee, there is no problem due to the difference in pH range as described above.

In order to form gelatin into a film-like sealing material or to laminate gelatin on a filtering material, it is desirable to have plasticity, and the required sealing performance differs depending on the type of fine material. According to the requirement, glycerin, sugar, sugar alcohol, polysaccharide and the like can be added to gelatin. The addition of sugar or sugar alcohol improves the oxygen and moisture barrier properties of the sealant. For example, sugars include glucose, maltose, etc., sugar alcohols include sorbitol, maltitol, etc., and polysaccharides include carrageenan, pullulan, pectin, etc. The sugar alcohol means a general term for polyhydric alcohols obtained by reducing the carbonyl group of sugar.

Since gelatin has an excellent heat-sealing property, it can be said that gelatin is suitable even when a fine substance is contained and sealed by heat adhesion.

The above-mentioned filter material is used in a state in which a filter body for packaging and containing a fine material is configured. The filter body is formed by folding and assembling the above-mentioned paper-like filter material into a bag shape, such as a so-called tea bag, which is composed of only the filter material,
There is a container made of a synthetic resin or the like, in which the filter material is provided in a part of a container for accommodating a fine material. In any case, the filter body can be packaged and housed in a state in which fine substances are sealed so as not to leak, and a leaching solvent is introduced through the filter material portion, and a liquid containing the active ingredient leached from the fine substances. It is enough if you can take out through the filter material part,
Conventional structures such as tea bags and coffee bean powder filter packs can be used.

As for the concrete structure of the sealing material, if you can seal the fine material inside the gelatin (sealing material) and prevent the vaporized components from escaping from the fine material and prevent oxygen and moisture from entering the fine material from the outside, you can use various ordinary The structure of the package can be adopted. For example, film-like gelatin can be laminated on the inside or outside of the filter body, especially the filter medium. In this case, a laminated sheet in which a filter material and a gelatin material are laminated is manufactured in advance, and the laminated sheet can constitute the whole or a part of the filter body. In addition, a film-like gelatin (sealing material) is formed into a bag shape, and after containing a fine material in the sealing material bag, the sealing material bag is housed in the filter body,
On the contrary, the filter body containing the fine matter may be contained in the sealing material bag. That is, it is sufficient that the fine material is packaged in a filter body provided with a filter medium, and at least the filter medium portion is doubly packaged with gelatin.

When the sealing material bag is housed in the filter body, the sealing material bag in which different kinds of fine particles for leaching the active ingredient are separately packaged can be housed in one filter body. This is because, for example, if coffee beans of different brands are packed in separate sealing material bags and housed in one filter, pouring hot water into the filter makes it easy to make so-called blended coffee. In addition to being convenient, it is possible to obtain coffee in which the taste and aroma of each brand of coffee beans are fully alive.

Further, as a constitution of the sealing material, components of taste and aroma such as acidity and flavor are added to the material of the sealing material within a range not impairing the function as the sealing material, and these components are gelatinized by a solvent for leaching. By dissolving it at the same time and taking it out together with the active ingredient from the fine substance, it is possible to give the obtained liquid component a variety of tastes and aromas that cannot be obtained only by leaching from the fine substance, It will be even more convenient.

[Action]

In the conventional packaging for leaching active ingredients, as described above, the fine leaching of active ingredients such as flavor components is stored as a filter body containing a filter material having air permeability. In the invention, since the filter material and the gelatin are double-wrapped, the vaporized components of the fine substance are surely confined in the gelatin, and the invasion of oxygen and moisture from the outside is surely blocked by the gelatin. become.

When leaching the active ingredient, put it in the solvent for leaching or pour the solvent for leaching from the top of the package while keeping it in the package.
Since gelatin is dissolved by the solvent for leaching and disappears, the solvent for leaching can reach a fine substance, and at the same time, the liquid component including the active ingredient leached from the fine substance is taken out
You can drink and use it.

Since gelatin dissolved in the solvent for leaching is composed of an edible material, drinking or eating a liquid component containing gelatin has no adverse effect on the human body.

Further, in the case of the present invention, since the gelatin is carried by the filtering material or the gelatin bag is wrapped by the filtering material to be protected by the filtering material, the sealed state of the fine substance by gelatin is broken. It is difficult, and the reliability of the function of preventing deterioration of the quality of fine particles due to the sealed state with gelatin is remarkable.

〔Example〕

Next, the present invention will be described in detail below with reference to the drawings illustrating an embodiment.

FIG. 1 and FIG. 2 show, as an example of the structure of a package, a fine product 10 made of black tea leaves or the like contained in a filter body 20 having a shape similar to that of a conventional normal tea bag. . To the tea bag-shaped filter body 20, as in a normal tea bag, a drawstring 40 is attached. The filter body 20 is provided on the inner surface side of a filter material 21 made of normal filter paper.
Using the laminated sheet in which the sealing material 30 made of gelatin is laminated, it is assembled into a bag shape by a means such as cutting, bending, or adhering like an ordinary tea bag, and the assembled filter body 20 is The fine object 10 is housed inside. The sealing material 30 is, as shown in the figure, the filtering material 2
In addition to being laminated on the inner surface side of No. 1, it may be laminated on the outer surface side of the filter medium 21 or on both inner and outer surfaces.

In the case of this embodiment, the performance required for the sealing material 30 is as follows.
To prevent the leaves of black tea, etc. from being deteriorated by the action of oxygen, to have an oxygen-blocking property, to prevent the ingress of moisture, to have a property of blocking moisture, and to prevent the scent and vaporized components of black tea leaves from escaping. Gas barrier property, flexible plasticity because the filter body 20 is bent and assembled, heat sealability for heat-sealing the filter body 20, dissolution with hot water which is a solvent for leaching The above-mentioned gelatin is preferable because it does not impair the taste of black tea when dissolved in black tea.

Since the performance such as sealing property changes depending on the thickness of gelatin, it is necessary to set the thickness of gelatin according to the purpose. Specifically, it is usually about 10 μm to about 70 μm.
It is preferable to carry out at about m. However, depending on the purpose, it can be carried out outside the above range.

FIG. 3 shows an example of the structure of the laminated sheet S composed of the filtering material 21 and gelatin (sealing material) 30. As shown in FIG. 3 (a), the sealing material 30 is laminated on both sides of the filtering material 21. Alternatively, as shown in FIG. 3 (b), the one in which the sealing material 30 is laminated only on one surface of the filter material 21 can be used. Further, although not shown, the filter material 21 may be impregnated with a material such as gelatin to form the sealing material 30 and integrated therewith.

As a means for laminating the filtering material 21 and the sealing material 30, for example, when gelatin is used as the sealing material 30, the filtering material 2
A method of coating a gelatin solution with No. 1 as a support can be adopted. Also, after preparing the gelatin film,
There is also a method in which the filter material 21 is laminated and integrated by the action of heat or an adhesive. The method for applying the gelatin solution to the filter material 21 includes a casting method using a doctor knife or an air knife,
Conventional coating methods such as a gravure method and a dip coating method can be adopted. That is, in the case of the present invention, such a filter material is subjected to a sealing treatment with gelatin by laminating such a gelatin film or applying a gelatin solution.

When the laminated sheet S is assembled to form the filter body 20, the sealing body 30 made of gelatin can be heat-sealed, which is convenient for forming the filter body 20.
The laminated sheet S can also be joined using various adhesives.

FIG. 4 shows another embodiment. In this embodiment,
The fine material 10 such as black tea leaves is enclosed and packaged in a bag (gelatin bag) 31 made of a gelatin film (sealant) 30, and the sealant bag 31 is in the form of a tea bag composed only of the filter material 21. It is housed in the filter body 20. Therefore,
The appearance is almost the same as that of the conventional tea bag, and if a leaching solvent such as hot water is poured into the filter body 20 in the same manner as an ordinary tea bag, the leaching solvent is squeezed inside the filter body 20. Thus, the sealing material bag 31 is melted.

FIG. 5 shows still another reference example. In this example, the same thing as a normal tea bag, in which the active substance leaching fine material 10 is housed in the filter body 20 composed of only the filter medium 21, It is sealed in an outer bag 32 made of the sealing material 30. The pull string 40 is pulled out of the sealed outer bag 32. At the time of use, hold the pull cord 40 and seal the outer bag 32.
If it is soaked in hot water as it is, the sealed outer bag 32 is melted, and only the filter body 20 inside remains, which is the same as a normal tea bag. In the illustrated sealed outer bag 32, both ends of a tubular sealing material film are sealed by heat seals 33 with a part of the pinch string 40 sandwiched therebetween. However, in the configuration shown in FIG. 5, the gelatin bag 31 is exposed and is not protected by the filter body 20. Therefore, the previous gelatin is carried by the filter medium or the gelatin bag is wrapped in the filter medium. Gelatin bag 3 as compared with the case of the embodiment in which it is covered and protected
1 is hard to break and lacks practicality.

FIG. 6 shows an example in which coffee bean powder is used as the fine substance 30 for leaching the active ingredient. The filter body 20 includes a dish-shaped container body 23 formed of a synthetic resin molded body, and a liquid passage portion 24 is formed to penetrate the bottom surface of the container body 23.
In the liquid passage portion 24 and the upper opening of the container body 23,
As shown in FIG. 3, a laminated sheet S composed of a filter material 21 and gelatin (sealing material) 30 is stuck and sealed, and the fine object 10 is housed in the internal space of the container body 23. In the figure, the sealing material 30 is arranged on the outer surface side of the filter material 21, but the sealing material 30 may be arranged on the inner surface side in contact with the fine material 10.

In the packaging body having such a structure, when hot water is poured from above while being placed on a coffee cup, the sealing material 30 covering the opening of the container body 23 is melted, so that the hot water is a fine substance 10 made of coffee bean powder. To be brewed and the coffee liquid is brewed. The coffee liquid also melts the sealing material 30 that has blocked the liquid passage portion 24 of the container body 23, and flows down into the coffee cup below.

In the above-described embodiment, the filter body 20 is mostly the container body 23, only part of which is constituted by the filter medium 21, and the sealing material 30 is also provided only on the filter medium 21 portion. Thus, even if the filtering material 21 and the sealing material 30 are partial, by combining with the container body 23 having a sealing property, the fine material 10 can be satisfactorily sealed and packaged, and the active ingredient can be leached out. The shape of the container body 23 and the filtering material 2
The formation position, the formation area, and the like of 1 and the sealing material 30 are not limited to the illustrated embodiment, and can be freely changed.

In FIG. 7, the same container body 23 as that of the embodiment shown in FIG. 6 is used, and the upper opening surface of the container body 23 and the liquid passage portion 24 are used.
Is covered only with the filter material 21, and a gelatin bag 31 enclosing the fine material 10 is housed in the inner space thereof.

The package of each embodiment described above can be stored or handled as it is, but it is more preferable in terms of appearance and hygiene if it is packaged in a simple paper bag or the like. However, unlike conventional aluminum foil bags, it is not necessary to perform strict packaging considering gas barrier properties and moisture resistance.

Next, in order to verify the sealing performance of the gelatin (sealing material) 30 according to the present invention with respect to the fine particles for leaching the active ingredient 10, the following experiment was conducted.

A gelatin film was used as the sealing material 30, 8 g of coffee bean powder was wrapped, and the ends were heat-sealed. After this was left for several days, the change in scent was measured by a sensory test, and the results are shown in the table below.

As the gelatin film, a film to which 20% of sorbitol was added based on the weight of gelatin (a film containing sugar alcohol) and a film to which it was not added (a film without addition) were used.

Refrigerator, room, and temperature 2 as storage environment
It was carried out in three kinds of environments of 0 ° C. and humidity of 40%.

In the test, 7 monitors evaluated according to the following criteria.

Evaluation: No change +1; Little change ± 0; Poor -1 As a result, it was demonstrated that the quality of coffee bean powder can be maintained for a long period of time by hermetically packaging with a gelatin film. It is also found that the addition of sorbitol is effective in maintaining quality.

[Effects of the Invention] According to the above-described package for leaching active ingredient according to the present invention, the fine particles for leaching active ingredient such as tea leaves and coffee bean powder are provided with the same filtering material as the conventional one. Since not only the filter body but also gelatin is packaged, the internal fine particles do not deteriorate during storage, the deterioration of the quality is suppressed, and the active ingredients such as flavoring ingredients are not lost. Therefore, even if the package is stored as it is for a long period of time, the taste and aroma of the fine substance do not change and can be maintained in a good state. Moreover, if a leaching solvent such as boiling water is added in a state where a fine substance is encapsulated with gelatin, the gelatin is dissolved, and the leaching of the active ingredient can be satisfactorily performed similarly to the conventional packaging body composed only of the filter body, Melted gelatin can be eaten as it is without any problem, so it is extremely convenient because it does not take time to remove the gelatin one by one.

Therefore, unlike the conventional case, there is no need to take apart the outer bag made of aluminum foil to take out the tea bag, and there is no need for a structure such as a notch or a knob to make the outer bag easy to tear. The manufacturing of the entire package is easy and the cost is low.

In addition, the function of preventing deterioration of the quality of fine particles due to the sealed state with gelatin is highly reliable. This is because the gelatin is protected by the filter medium and the gelatin bag is wrapped in the filter medium and is not easily damaged.

[Brief description of drawings]

FIG. 1 is a perspective view of a package according to an embodiment of the present invention, FIG. 2 is a sectional view, FIG. 3 is a sectional view of a laminated sheet which is a constituent material of the package, and FIG. FIG. 5 is a partially cutaway front view showing an embodiment, FIG. 5 is a partially cutaway front view showing a reference example of a package, and FIGS. 6 and 7 are cross-sectional views of a package showing yet another example. 10: Fine matter, 20: Filter body, 21: Filter material, 3
0 …… Gelatin (sealant), 31 …… Gelatin bag (sealant bag), 32 …… Outer bag

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akuji Okumura 3-14-40-502, Baba, Otsu City, Shiga Prefecture (56) References Showa 52-120086 (JP, U) Showa 55-61565 (JP) , U) Actual development Sho 52-36193 (JP, U)

Claims (2)

[Claims] 1. A fine material which is soaked in a liquid to leach out an active ingredient, and a filtering material which does not allow the minute material to pass but allows the liquid and the active ingredient to pass, and the minute material is packaged and housed in the filtering material. A package for leaching an active ingredient from the fine material, wherein a filter material sealed with gelatin is used as the filter material. 2. A fine material which is soaked in a liquid and leaches out an active ingredient, and a filtering material which does not allow the minute material to pass but allows the liquid and the active ingredient to pass, and the minute material is packaged and housed in the filtering material. In the package for leaching the active ingredient from the fine substance, the fine substance is contained inside the filter medium in a state of being enclosed in a gelatin bag, and the package for leaching active ingredient is characterized in that .