JPH11346927A - Extract bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate the direction of a bag part by a weight piece to keep an opening part in the open state so as to easily put in and out a material to be extracted by forming the bag part for storing a material to be extracted such as green tea or the like with a water permeable filtering sheet material, and attaching the weight piece to the end of an extended part continuously provided from the opening part of the bag part to its back part. SOLUTION: An extract bag 10 has a bag part 1 filled with a material 20 to be extracted such as green tea, stock or the like formed by an upper surface part 2 and a back part 3, and the back part 3 is provided with an extended part 5 connected to an opening part 4, a weight piece 6 being attached to the end of the extended part 5. The bag part 1 is formed with a water permeable filtering sheet material which inhibits the material to be extracted filled in the interior thereof from passing and permits only the extract to pass therethrough. In use, the bag part 1 filled with the material 20 to be extracted is stored in a container 30 such as a cup or the like, and then the extended part 5 is hooked on the container wall 31 so as to put the weight piece 6 outside the container 30. Thus, the direction of the bag part 1 is regulated by the weight piece 6, the bag part 1 is prevented from being overturned, and the opening part 4 is kept in the open state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended to facilitate extraction of tea materials such as green tea, black tea, barley tea, soup stocks such as dried and dried bonito, and other materials to be extracted in a container such as a cup. Extraction bag.

[0002]

2. Description of the Related Art Conventionally, bags for extracting tea materials such as green tea, black tea, barley tea, soup stocks such as dried and dried bonito, and other materials to be extracted in a container such as a cup, that is, an extraction bag. As described in Japanese Utility Model Application Laid-Open No. 59-138568, a water-permeable filter 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 a sheet at the opening of the bag, and the opening of the bag is closed by inverting the cover piece.

[0003] As a method of extracting the material to be extracted using this extraction bag, first, the material to be extracted is put into a bag body, and then the opening of the bag body is closed by turning over the cover piece,
It is put in a container such as a cup, and hot water is applied to immerse the bag containing the material to be extracted in the hot water.

According to this extraction bag, the extraction of an arbitrary material to be extracted can be performed relatively easily without using a specific amount of the material to be extracted and without using a special extraction tool. For example, if you want to add a cup of tea,
Tea can be poured directly into a teacup without wasting excess tea leaves, using one cup of tea leaves, and without using an extractor such as a teapot.

[0005]

However, in the extraction bag described in Japanese Utility Model Laid-Open No. 59-138568, the operation of turning over the cover pieces is complicated. In addition, even if it is necessary to take out the extracted material to be extracted from the extraction liquid as needed, it cannot be easily taken out with bare hands because the entire extraction bag is immersed in the extraction liquid.

[0006] The present invention is to solve the above-mentioned problems of the prior art, and it is possible to more easily fill the material to be extracted, and to easily remove the material to be extracted from the extract at any time. The purpose is to provide a new extraction bag that can be used.

[0007]

In order to achieve the above object, the present inventor has proposed that a bag portion for containing a material to be extracted is made of a water-permeable filter sheet material, and that the bag portion has an upper surface portion and a rear surface portion. An extraction bag is provided, wherein an extension portion is continuously provided from the open end of the bag portion to the back portion, and a weight piece is provided at an end portion of the extension portion.

According to the extraction bag of the present invention, the material to be extracted is put into the bag portion, put in a container such as a cup, and the extension is hung on the container wall so that the weight piece comes out of the container. By pouring boiling water or the like into the container, an extract can be easily obtained in the container.

In this case, since the weight piece outside the container regulates the direction of the bag inside the container, the material to be extracted does not overflow from the opening of the bag even if the opening of the bag is not particularly closed. Absent. Therefore, an operation for closing the opening is unnecessary. Furthermore, the material to be extracted can be easily taken out of the extract or the container at any time by pulling up the weight piece outside the container.

In the extraction bag of the present invention, the upper surface, the back surface, and the extension portion are formed from a single rectangular water-permeable filterable sheet material, and a weight piece is attached to an end of the extension portion. When formed, the extraction bag can be manufactured at extremely low cost.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. In each drawing, the same reference numerals represent the same or equivalent components.

FIG. 2 shows an extraction bag 10 according to one embodiment of the present invention.
1A and 1B are a plan view (FIG. 1A) and a cross-sectional view (FIG. 1B) of FIG. 1, and FIG.

As shown in FIG. 2, the extraction bag 10
The bag 1 for containing the material to be extracted 20 is formed from an upper surface 2 and a back surface 3, and an extension 5 is connected to the back surface 3 from the open end 4 of the bag 1. The extension 5
Is provided with a weight piece 6.

In the present invention, the bag portion 1 is formed of a water-permeable filter sheet material which does not allow the material to be extracted 20 to pass through but allows the extract to sufficiently pass therethrough. Note that it is not always necessary to form the entire surface of the bag portion 1 from the water-permeable filterable sheet material, but it is preferable to form the entire surface from the water-permeable filterable sheet material in terms of extraction efficiency and the manufacturing cost of the extraction bag 10. .

Examples of the water-permeable filterable sheet material include woven fabrics composed of synthetic fibers such as polyester, nylon, polyethylene, polypropylene and vinylon, semi-synthetic fibers such as rayon, and natural fibers such as kozo and mitsumata, and single or composite fibers. Cloth or non-woven fabric, Manila hemp, wood pulp,
Papers such as base paper for tea bags, such as mixed paper made of polypropylene fibers and the like, can be used. In particular, from the viewpoint of preventing the extract liquid from being perceived as having a odor of tap water, the fibers forming the above-described woven fabric, non-woven fabric, mixed paper, papers, etc. may be chitin chitosan fibers or chitin that absorb the odor of calcium. A composite of chitosan cellulose fibers is preferred. As the chitin-chitosan fiber or the chitin-chitosan cellulose fiber, for example, the fiber described in JP-A-9-241928 can be used. Further, as the water-permeable filterable sheet material, the first layer is a regular polyester, the second layer is a sheet material of a two-layer structure made of a mixed paper of regular polyester and low melting point polyester,
It is preferable in terms of taste, aroma, flavor, and extraction time.

The thickness of the water-permeable filter sheet material is as follows:
The thickness is preferably 50 to 250 μm, and the basis weight is 10 to 50.
g / m ² is preferred.

On the other hand, as long as the extension portion 5 is connected to the back portion 3, the extension portion 5 may be formed separately from the back portion 3 and connected to the back portion 3, or the extension of the sheet material forming the back portion 3 may be provided. Although it may be formed as a part, it is preferable to form it as an extension of the sheet material of the back part 3 from the viewpoint of the manufacturing cost of the extraction bag 10 as described later.

When the bag 1 is placed in the container 30 and the extension 5 is hung on the container wall 31 so that the weight piece 6 comes out of the container 30, the extension 5 and the weight piece 6 The extension 5 is preferably formed from a flexible sheet material so that it hangs along.

As shown in FIG. 2 (b), it is preferable that the upper surface portion 2, the back surface portion 3 and the extension portion 5 are formed of one sheet of water-permeable filterable material. That is, the bag of the extraction bag 10 is formed by folding one sheet of the water-permeable filterable sheet material and bonding or fusing the opposing edges 7 and 8 of the upper surface portion 2 and the back surface portion 3 respectively to form the bag portion 1. The part 1 and the extension part 5 can be industrially manufactured at extremely low cost.

In the extraction bag 10 of the present invention, the weight piece 6 is formed by putting the material 20 to be extracted in the bag portion 1 and placing it in the container 30.
, The extension portion 5 is hung on the container wall 31 so that the weight piece 6 comes out of the container 30, and when hot water or the like is poured into the container 30, the direction of the bag portion 1 in the container 30 is regulated. The material for forming the bag 1 is not particularly limited as long as the bag 1 has such a weight that the bag 1 can be prevented from falling in the container 30. For example,
It can be formed from paperboard, plastic pieces, synthetic paper, and the like.

The weight of the weight piece 6 includes the volume of the bag 1
For example, when the bag 1 is formed of a nonwoven fabric made of polyester and has a rectangular shape of about 6 cm × 8 cm, the weight of the weight piece 6 should be about 1 to 5 g, although it depends on the forming material. Is preferred.

The method of attaching the weight piece 6 to the end of the extension 5 is not particularly limited. For example, as shown in FIG. Can be attached.

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, put in an arbitrary container 30 such as a cup, a cup, etc., and the weight piece 6 is put out of the container 30. The extension 6 is hung on the container wall 31 so as to come out, and then hot water or the like is poured into the container 30. Thus, an extract can be easily obtained in the container 30. Also, at any time after this,
The material to be extracted 20 can be easily taken out from the extraction liquid or the container 30 by picking up the weight piece 6 and pulling it up.

The material to be extracted 20 to be put into the bag 1 is not particularly limited. Examples thereof include tea materials such as green tea, black tea, barley tea, coffee powder, soup stock, dried bonito and the like, and herbal medicines. I can give it.

[0025]

According to the extraction bag of the present invention, the material to be extracted can be easily filled when extracting the material to be extracted such as tea leaves. In addition, the material to be extracted can be easily removed from the extract at any time after the extraction.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a method of using an extraction bag of the present invention.

FIG. 2 is a plan view (FIG. 2A) and a cross-sectional view (FIG. 2B) of an extraction bag according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag part 2 Top part 3 Back part 4 Open end of bag part 5 Extension part 6 Weight piece 10 Extraction bag 20 Material to be extracted 30 Container 31 Container wall

Claims (4)

[Claims] 1. A bag portion for containing a material to be extracted is made of a water-permeable and filterable sheet material. The bag portion has an upper surface portion and a rear surface portion, and an extended portion extends from the open end of the bag portion to the rear surface portion. An extraction bag, wherein a weight piece is provided at an end of the extension portion. 2. When the extension portion is made of a flexible sheet material, the bag portion is put in the container, and the extension portion is hung on the container wall so that the weight piece comes out of the container, the extension portion and the weight piece become 2. The extraction bag according to claim 1, wherein the extraction bag hangs substantially along the container wall. 3. An upper surface, a rear surface, and an extension portion are formed of one rectangular water-permeable filterable sheet material, and a weight piece is attached to an end of the extension portion. Extraction bag. 4. The water-permeable filter sheet material has a thickness of 50 to 50.
250 [mu] m, the extraction bag according to claim 1 comprising a nonwoven fabric or paper having a basis weight of 10 to 50 g / m ^2.