JP3849304B2 - Extraction bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an extraction bag that facilitates extraction of tea materials such as green tea, black tea, barley tea, soup stock such as dried and dried bonito, and other materials to be extracted in a container such as a cup.
[0002]
[Prior art]
Conventionally, as a bag for extracting tea materials such as green tea, black tea, barley tea, soup stock such as dried and dried bonito, and other materials to be extracted in a container such as a cup, that is, as an extraction bag, As disclosed in JP-A-59-138568, a water-permeable filterable sheet such as a nonwoven fabric is folded by a specific method to form a bag. This extraction bag has a cover piece formed by folding the sheet at the opening of the bag, and the opening of the bag is closed by inverting the cover piece.
[0003]
As a method for extracting the material to be extracted using this extraction bag, first, the material to be extracted is put in the bag body, then the cover piece is inverted to close the opening of the bag body, and this is placed in a container such as a cup. The bag containing the material to be extracted is immersed in hot water.
[0004]
According to this extraction bag, extraction of an arbitrary material to be extracted can be performed relatively easily without using a required amount of material to be extracted and without using a special extraction tool. For example, when putting a cup of tea in a cup of tea, use a cup of tea without wasting extra tea leaves, and without using an extractor such as a teapot, Can be put.
[0005]
[Problems to be solved by the invention]
However, the extraction bag described in Japanese Utility Model Laid-Open No. 59-138568 has a complicated operation of inverting the cover piece. Moreover, even if it is going to take out the extracted to-be-extracted material from an extract as needed, since the whole extraction bag is immersed in the extract, it cannot take out easily with bare hands.
[0006]
The present invention is intended to solve the above-described problems of the prior art, can be more easily filled with the material to be extracted, and can be easily taken out from the extract at any time. It aims to provide a simple extraction bag.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present inventor has a bag portion into which the material to be extracted is made of a water-permeable filterable sheet material, the bag portion having an upper surface portion and a back surface portion, and a bag portion on the back surface portion. The extension part is continuously provided from the opening end of the container , at least the extension part is made of a flexible sheet material , the weight piece is provided at the end part of the extension part , the bag part is put in the container, and the weight piece comes out of the container When the extending portion is hung on the container wall, the extending portion and the weight piece hang down substantially along the container wall .
[0008]
According to the extraction bag of the present invention, the material to be extracted is put in the bag part, put in a container such as a cup, the extension part is hung on the container wall so that the weight piece comes out of the container, and then hot water is put in the container. By pouring etc., an extract can be easily obtained in the container.
[0009]
In this case, since the weight piece outside the container regulates the direction of the bag portion inside the container, the material to be extracted does not overflow from the opening portion of the bag portion even if the opening portion of the bag portion is not particularly closed. Therefore, the operation | work for closing an opening part is unnecessary. Furthermore, by pulling up the weight piece outside the container, the material to be extracted can be easily taken out from the extract or the container at any time.
[0010]
Further, when the extraction bag of the present invention is formed by forming the upper surface portion, the back surface portion, and the elongated portion from a single rectangular water-permeable filterable sheet material, and attaching the weight piece to the end portion of the elongated portion. It becomes possible to manufacture an extraction bag at an extremely low cost.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same numerals indicate the same or equivalent components.
[0012]
FIG. 2 is a plan view (FIG. 2A) and a cross-sectional view (FIG. 1B) of the extraction bag 10 of one embodiment of the present invention, and FIG.
[0013]
As shown in FIG. 2, in this extraction bag 10, a bag portion 1 into which an extraction target material 20 is placed is formed of an upper surface portion 2 and a back surface portion 3, and an open end 4 of the bag portion 1 is formed on the back surface portion 3. The extending portions 5 are connected to each other. A weight piece 6 is provided at the end of the extension 5.
[0014]
In the present invention, the bag portion 1 is formed of a water-permeable filterable sheet material that does not allow the extraction target material 20 put therein to pass but allows the extraction liquid to pass sufficiently. In addition, although it is not always necessary to form the entire surface of the bag portion 1 from the water-filterable sheet material, it is preferable to form the entire surface from the water-filterable sheet material from the viewpoint of extraction efficiency and manufacturing cost of the extraction bag 10. .
[0015]
Examples of the water-permeable filter sheet material include synthetic fibers such as polyester, nylon, polyethylene, polypropylene, and vinylon, semi-synthetic fibers such as rayon, and woven or non-woven fabrics composed of natural fibers such as mulberry, mitsumata alone or in combination. Paper such as tea bag base paper, mixed paper made of Manila hemp, wood pulp, polypropylene fiber, etc. can be used. In particular, the chitin chitosan fiber or chitin that absorbs the odor in the fibers forming the above-mentioned woven fabric, non-woven fabric, mixed paper, paper, etc., from the point of preventing the extract from feeling the odor of tap water. A composite of chitosan cellulose fibers is preferred. As the chitin chitosan fiber or chitin chitosan cellulose fiber, for example, the fibers described in JP-A-9-241928 can be used. Moreover, as a water-permeable filterable sheet material, the first layer is a regular polyester, the second layer is a two-layered sheet material composed of a mixed paper of a regular polyester and a low-melting polyester, and has a taste, aroma, flavor, and extraction time. This is preferable.
[0016]
The thickness of the water-permeable filterable sheet material is preferably 50 to 250 μm, and the basis weight is preferably 10 to 50 g / m ² .
[0017]
On the other hand, as long as the extended portion 5 is connected to the back surface portion 3, it may be formed separately from the back surface portion 3 and connected to the back surface portion 3, or formed as an extended portion of the sheet material forming the back surface portion 3. However, as described later, it is preferable to form the extraction bag 10 as an extended portion of the sheet material from the viewpoint of manufacturing cost.
[0018]
In addition, when the bag portion 1 is put in the container 30 and the extension portion 5 is hung on the container wall 31 so that the weight piece 6 comes out of the container 30, the extension portion 5 and the weight piece 6 extend along the container wall 31. The extension 5 is preferably formed from a flexible sheet material so that it hangs down.
[0019]
The upper surface portion 2, the back surface portion 3 and the elongated portion 5 are preferably formed from a single water-permeable filter sheet material as shown in FIG. 2 (b). That is, the bag of the extraction bag 10 is formed by folding a sheet of water-permeable filterable sheet material and bonding or fusing the opposing edges 7 and 8 of the upper surface portion 2 and the rear surface portion 3 to form the bag portion 1. The part 1 and the elongated part 5 can be industrially manufactured at a very low cost.
[0020]
In the extraction bag 10 of the present invention, the weight piece 6 puts the material to be extracted 20 in the bag portion 1, puts it in the container 30, and extends the extension portion 5 to the container wall 31 so that the weight piece 6 goes out of the container 30. When the hot water or the like is poured into the container 30, the direction of the bag part 1 in the container 30 is restricted, and the bag part 1 has a weight that can prevent the bag part 1 from falling in the container 30. As long as it is, there is no restriction | limiting in particular in the formation material. For example, it can be formed from paperboard, plastic pieces, synthetic paper and the like.
[0021]
The weight of the weight piece 6 depends on the volume of the bag portion 1, the forming material, and the like. For example, when the bag portion 1 is formed from a non-woven fabric made of polyester and the size thereof is a rectangle of about 6 cm × 8 cm, The weight of the weight piece 6 is preferably about 1 to 5 g.
[0022]
Moreover, there is no restriction | limiting in particular in the method of attaching the weight piece 6 to the edge part of the expansion | extension part 5, For example, as shown in FIG.2 (b), the weight piece 6 is stuck on the edge part of the expansion | extension part 5, and it sticks. be able to.
[0023]
As a method of using the extraction bag 10 of the present invention, an arbitrary material 20 to be extracted is put in the bag portion 1 and placed in an arbitrary container 30 such as a cup of water or a cup so that the weight piece 6 goes out of the container 30. The extending part 6 is hung on the container wall 31, and then hot water or the like is poured into the container 30. Thereby, an extract can be easily obtained in the container 30. Moreover, the material 20 to be extracted can be easily taken out from the extract or the container 30 by picking up the weight piece 6 and pulling it up as needed.
[0024]
In addition, there is no restriction | limiting in particular as the to-be-extracted material 20 put in the bag part 1, For example, tea materials, such as green tea, black tea, barley tea, coffee powder, boiled and dried soup stock materials, Chinese medicine, etc. can be mention | raise | lifted. it can.
[0025]
【The invention's effect】
According to the extraction bag of the present invention, the extraction material can be easily filled when extracting the extraction material such as tea leaves. Further, after extraction, the material to be extracted can be easily taken out from the extract at any time.
[Brief description of the drawings]
FIG. 1 is a perspective view for explaining a method of using an extraction bag of the present invention.
FIGS. 2A and 2B are a plan view (FIG. 2A) and a cross-sectional view (FIG. 2B) of an extraction bag according to an embodiment of the present invention. FIGS.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bag part 2 Upper surface part 3 Back surface part 4 Open end 5 of bag part Extension part 6 Weight piece 10 Extraction bag 20 Extractable material 30 Container 31 Container wall

Claims (3)

Bag part to put the extracted material consists of water-permeable filtering sheet material, and a and a back portion bag portion upper surface portion, extending portion from the open end of the bag portion is continuously provided on the back portion, at least extending The part is made of a flexible sheet material, and a weight piece is provided at the end of the extension part . The bag part is put in the container, and the extension part is hung on the container wall so that the weight piece comes out of the container. An extraction bag, wherein the portion and the weight piece hang down substantially along the container wall . The extraction bag according to claim 1, wherein the upper surface portion, the back surface portion, and the elongated portion are formed of a single rectangular water-permeable filterable sheet material, and the weight piece is attached to the end portion of the elongated portion. The extraction bag according to claim 1 or 2 , wherein the water-permeable filterable sheet material comprises a nonwoven fabric or paper having a thickness of 50 to 250 µm and a basis weight of 10 to 50 g / m ² .

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