JPS592675Y2 - Beverage bag with spout with filtration function - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bag used in a so-called bag-in-box, a charging paper container for liquids.

More specifically, it has the function of extracting solid raw materials containing active ingredients from the liquid content during the process and allowing the extracted solids to remain in the bag when used. This relates to a beverage bag equipped with a pouring spout, and provides an extremely convenient bag for brewing coffee, medicinal beverages, etc., and for drinking or taking it.

Traditionally, coffee is made by grinding roasted coffee beans.
This is usually extracted using boiling water using the siphon method or drip square method.

However, since this method is extracted in an open system, there is a loss of active ingredients due to transpiration, and it was considered unsuitable especially for mass production.

In some cases, coffee beans (roasted, unground) and extract liquid such as syrup were placed in a pressure-resistant container and heated in an autoclave using a metal can.

However, cans and bottles have disadvantages in that the container cost per unit volume is large and that extraction takes time due to the shape of the container.

Therefore, in this project, we will not use a bag-in-box, and by attaching a spout to a flat-shaped bag that can be used for extraction, extracts such as coffee liquid can be directly and easily extracted, which is valuable for commercial use. liquid can be provided.

Moreover, since the bag-in-box is made of paper and plastic bags, it has the advantage that it can be easily incinerated.

By the way, the bag-in-box method uses sake and vinegar.

It is widely used for mineral water, etc., but all of them are filled with liquid only.

Therefore, when pouring it out, it is sufficient to pour it out as it is.

However, when making coffee liquid from coffee beans, coffee beans and medicinal herbs remain in the bag when extracting medicinal liquid from medicinal herbs, and when pouring out coffee beans and medicinal herbs, the normal pouring spout method is not suitable for the size of the inside diameter of the spout. However, since the solid raw material comes out of the bag along with the liquid, it is necessary to filter the liquid again.

Therefore, the conventional type is inconvenient to use in this respect.

Therefore, in the present invention, the advantages of the bag-in-box are utilized as is, while eliminating the need to filter the liquid contents again.

In other words, a filter is provided at the spout of a flexible bag containing solid raw materials containing active ingredients and extract liquid, and when the contents are poured out, the filter prevents the solid raw materials from coming out of the bag along with the liquid. There is a characteristic that.

The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a beverage bag used as an inner bag of a bag-in-box, and is comprised of a flexible bag to be described later in which solid raw materials containing active ingredients, such as coffee beans and their extract, are stored therein.

A spout body 2 is attached to the spout 3 and is made of polyethylene, for example, and an integrally formed attachment collar 4 is attached to the inner surface of the bag.

5 is a mesh filter integrally molded with the main body 2.

Reference numeral 6 designates a cap that is fitted onto the mouth edge 7 of the spout body.

The bag described above allows extraction to be performed by heating the container with the solid ingredients and extract liquid filled inside the bag, and the cap 6 is removed and the extract liquid is poured out from the spout body. At this time, the solid components are not poured out together with the extract because they are filtered through a filter.

By the way, with conventional spouts, when injecting or dispensing liquid, it is done without a cap, and when the injection or filling is completed, the stopper is closed using a fitting method, and when it is used, it is poured using a separate device. The liquid is taken out by fitting it into the outlet.

In any case, the usual method was to seal the cap using a fairly precise fitting of plastic, and in some cases a gasket or the like was used inside the cap to prevent liquid from leaking.

However, in the second conventional method, when solid ingredients and extract liquid are filled into a bag and the bag is heated and extracted, it is difficult to fit the main body and the cap that form the spout when they are both made of medium-low pressure polyethylene. A part of the joint part is partially thermally fused under retort processing temperature conditions, resulting in the inconvenience that it cannot be removed during use.

Furthermore, there is a drawback that the extract liquid as the liquid waiting for retort processing leaks and is lost as loss in the pot.

This can be done by sealing the upper part of the spout body 2 with a film 8 that can be thermally bonded to the main body in order to prevent such liquid leakage, that is, to prevent leakage during retort processing and transportation.

That is, the film 8 is a composite film 8a, 8b
The film 8a therein is made of the same material as the spout body 2, and the film 8b is a so-called barrier film having a function of preventing the escape of aromatic components.

In some cases, the film 8a may be a combination of a polyester film and an aluminum foil.

By sealing the rim of the spout body with the film as described above, the extracted components will not leak during retort processing.

Next, the cap that fits into the spout body may be made of a material different from that of the main body.

That is, as mentioned above, in the case of treatment with a considerably high temperature liquid, the contact portions of the spout body 2 and the cap 6 may partially or entirely fuse under the high temperature conditions.

Therefore, if the spout body 2 is made of polyethylene, there will be no problem if a polypropylene or polycarbonate cap is used.

In any case, the material may be selected as appropriate depending on the extraction temperature conditions, but it is necessary to use a heat-resistant resin.

Next, it is desirable that the spout body be made of the same material or the same type of material as the inner surface material of the bag.

For example, when the inner surface material of the bag is medium-low pressure polyethylene, the spout body may also be made of medium-low pressure polyethylene.

However, this combination is not particularly limited; for example, as long as the extraction conditions are about 90° C., which is lower than 120° C., the material of the main body and the inner layer film of the bag may be high-pressure polyethylene.

Alternatively, one of them may be medium-low pressure polyethylene and the other may be high-pressure polyethylene.

As mentioned above, in the case where the solid ingredients and extract liquid are filled into a bag and the container is heated to perform extraction, it is necessary to select the material of the bag and spout body that suits each condition. In the case of medicinal herbs, extraction is carried out using a retort method with pressure and heating at 120°C for 40 minutes, which is difficult due to various extraction conditions. There is no problem with the material.

In any case, the present invention involves processing a flexible bag containing solid raw materials containing active ingredients and extract liquid at high temperatures to perform extraction, and the solid raw materials do not flow out during pouring. It is characterized by having a filter installed in the spout body.

[Brief explanation of drawings]

Figure 1 is a cutaway front view of the bag, Figures 2 and 3 are Spour I.
It is a top view of a main body and a cap. 1...Bag, 2...Spout body, 3.
...Spout, 5...Filter

Claims (2)

[Scope of utility model registration request] (1) A spout is attached to the spout of a flexible bag for storing the solid raw material containing the active ingredient and the extract,
A beverage bag having a spout with a filtration function, characterized in that a filter is provided inside the spout, the upper mouth edge of the spout is sealed with a film having gas barrier properties, and a cap is placed over the spout. (2) A beverage bag having a spout for the filtration function according to claim 1, wherein the cap is made of a material different from that of the spout body.