JP7241451B2 - drip bag - Google Patents

Description

The present invention relates to a drip bag. In particular, the present invention relates to drip bags using natural fibers.

Conventionally, a drip bag has a bag body formed from a water-permeable filterable sheet and having an opening at the upper end, and hooking members provided on two opposing outer surfaces of the bag body. A member includes an upper sticking portion stuck to the bag body along the opening of the bag body, and a member extending from the top sticking portion to the bottom side of the bag body, and at least a portion of the bottom side of the member extends to the bag body. and arm portions formed on both left and right sides of the central adhered portion, wherein the lower end portion of the arm portion and the lower end portion of the central adhered portion are continuous, and the arm Since the upper end of the part is not attached to the bag body, the arm is formed so as to be able to be lifted from the bag body, and the lower end of the central attached part and the arm are formed so as to surround the outside of the arm. It has a hooking part that is continuous with the upper end of the part and is not attached to the bag body without passing through the folding line, the width of the upper sticking part is less than or equal to the width of the hooking part, and the upper sticking part Drip bags are known that do not have reinforcing pieces extending downward from both ends along the side edges of the bag body (see, for example, Patent Document 1). According to the drip bag described in Patent Literature 1, the opening of the bag body can be widely opened, and a drip bag with a stable opening shape can be provided at low cost.

JP 2016-105822 A

However, in the drip bag described in Patent Document 1, the bag body through which the extract leaks is made of non-woven fabric, so that the extraction material such as coffee is used to produce a mild extract with a better taste. It is difficult to extract.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a drip bag which is made of natural fibers and which allows easy extraction of an extract having a better taste.

In order to achieve the above object, the present invention provides a bag body made of natural fibers, having an opening, into which an extraction material can be filled, and a bag body overlapping at least a part of the edge of the opening. Provided is a drip bag comprising a header section constructed using a fixed, heat-sealable material, and clip sections provided on the outer surfaces of one and the other opposing surfaces of the bag body, respectively. .

Further, in order to achieve the above object, the present invention provides a bag body made of natural fibers, having an opening, filled with an extraction material, and a bag which is overlapped on at least a part of the edge of the opening. a header portion fixed to the body and constructed using a heat-sealable material and having a sealing portion at or near the end opposite to the opening; A drip bag containing brewing material is provided comprising a face and a clip portion provided on each of the outer surfaces of the other face.

ADVANTAGE OF THE INVENTION According to the drip bag which concerns on this invention, the drip bag which is comprised using a natural fiber and can extract an extract with a better taste easily can be provided.

1 is a schematic diagram of a configuration of a drip bag according to this embodiment; FIG. FIG. 2 is an exploded view of the drip bag according to the embodiment; It is a figure of the usage method of the drip bag which concerns on this embodiment. FIG. 5 is a schematic diagram of a modification of the drip bag according to the present embodiment;

[Embodiment]
<Overview of Drip Bag 1>
As a method of extracting beverages such as coffee using extraction materials such as coffee beans, coffee bean powder, tea leaves such as black tea, green tea, oolong tea, etc. are filled in a bag-shaped bag, and the bag is made of paper. An extraction method using a drip method is known, in which a coffee component, a tea component, or the like is extracted by attaching/fixing the bag to a cup or the like using a fixing tool such as the above, and pouring hot water into the opening of the bag. Filters made of paper, non-woven fabric, or the like are usually used as the material for the bag. However, when extracting a more delicious and delicious beverage, it is preferable to use a natural material such as cotton for the material of the bag.

However, when natural materials such as cotton are used to construct the bag, the opening of the bag cannot be properly sealed by conventional methods after the extraction material is filled into the bag. In other words, unlike non-woven fabrics, which can be easily and steadily sealed by thermocompression bonding or heat sealing, natural materials such as cotton are difficult to seal by heat (even if they are sealed by heat, there is no practical adhesion). It is difficult to obtain strength.). In addition, although natural materials such as cotton can be sealed by sewing, from the viewpoint that it is necessary to form an opening when boiling water is poured, sewing is too strong a seal, and an opening cannot be easily formed in the bag. . Furthermore, when the opening is sealed by sewing, it is necessary to make the sewn part easily untied from the viewpoint of easy formation of the opening. There is a possibility that the extraction material contained in the bag may spill out of the bag during storage.

Therefore, as a result of various investigations, the present inventors constructed the part where the extraction liquid extracted from the extraction material leaks out of natural materials, and the sealing part (the part where the opening is formed during extraction by the drip method) is heated. By using a sealable material, the drip bag containing the extraction material can be easily manufactured, an opening for pouring hot water can be easily formed at the time of extraction, and a drip using natural materials We found that it is possible to construct a drip bag that can be extracted by the method.

That is, the drip bag 1 according to the present embodiment is configured using natural fibers, has an opening 10a, and has a bag body 10 in which the extraction material 70 can be filled, and at least a part of the edge portion of the opening 10a. A header portion 20 which is layered and fixed to the bag body 10 and which is made of a heat-sealable material, and a clip portion 30 which is provided on each of the outer surfaces of one and the other facing surfaces of the bag body 10. and Hereinafter, the drip bag according to this embodiment will be described in detail with reference to the drawings.

[Details of drip bag 1]
FIG. 1 shows an example of an overview of the configuration of a drip bag according to this embodiment. FIG. 1(a) shows an example of the outline of the side surface of the drip bag 1 according to this embodiment, and FIG. 1(b) shows the header portion 20 of the drip bag 1, the bag body 10, the header portion 20, and the clip portion. 30 shows an example of an overview of the fixed state.

As described above, the drip bag 1 has an opening 10a in a part of the edge, and the bag body 10 in which the edge other than the opening 10a is closed is overlapped with at least a part of the edge of the opening 10a. A header portion 20 fixed or attached to the bag body 10 and made of a heat-sealable material is provided on each of the opposing outer surfaces of one side and the other side of the bag body 10 for use. and a clip portion 30 which is sometimes secured to the container. Since the header portion 20 is fixed or attached to the bag body 10, when the drip bag 1 is observed from the side, the opening 10a is observed linearly.

(Bag body 10)
The bag 10 is configured to have a substantially right conical portion 100 and a substantially cylindrical portion 102 . In the bag body 10 , the substantially right conical portion 100 and the substantially cylindrical portion 102 are continuous on the opposite side of the vertex of the portion 100 . The opening 10a of the bag body 10 is provided at the end of the portion 102 and opposite to the portion 100 side. The bag body 10 has a stitched portion 15 closed by sewing on at least a part of the edge portion excluding the opening 10a.

The bag 10 is constructed using natural fibers. As the natural fiber, it is preferable to use cotton, and 100% cotton is more preferable. In addition, from the viewpoint of maintaining the open state of the opening 10a when pouring hot water and leaking the extract with an appropriate concentration for drinking, the cotton has a weight of 60 g/m ² or more and 150 g/m ² or less. It preferably has a thickness (basis weight), and more preferably has a thickness of 60 g/m ² or more and 120 g/m ² or less. Any thread may be used for the stitched portion 15 as long as it is made of natural fibers.

(Header part 20)
The header portion 20 is provided so as to overlap the edge portion of the opening 10 a of the bag body 10 . More specifically, the header portion 20 has a substantially cylindrical shape, and as shown in FIGS. It has a portion 200 . Further, the header portion 20 has a cutting portion 40 at a position a predetermined distance away from the end opposite to the opening 10a toward the opening 10a. The cut section 40 is, for example, a perforation line or a slit. At least the end portion of the header portion 20 on the side opposite to the opening 10a or the vicinity of the end portion on the side opposite to the opening 10a is configured using a material that can be sealed by thermocompression bonding or the like. Note that the header portion 20 may be provided so as to overlap the outside of the portion 102 of the bag body 10 .

Specifically, non-woven fabric is preferably used as the heat-sealable material that constitutes the header section 20 . As the nonwoven fabric, a nonwoven fabric having air permeability and water permeability to the extent that the extraction material 70 filled in the drip bag 1 does not substantially leak to the outside can be used. Moreover, examples of the material constituting the nonwoven fabric include polypropylene and polyethylene.

(clip portion 30)
The clip portion 30 is provided on the outer surface of the bag body 10 . That is, the clip portion 30 is provided on each of the outer surface of one opposing surface (front surface 18) and the outer surface of the other surface (back surface 19) of the bag body 10. As shown in FIG. The clip portion 30 includes a support 300 and a drawer portion 310 that is continuous with the support 300 and has a recess 315 . A crease 320 is provided at the boundary between the support 300 and the drawer portion 310 . Further, the support 300 has a convex portion 317 at a portion corresponding to the concave portion 315 of the drawer portion 310 . When the drip bag 1 is used, the drawer 310 is lifted from the support 300 with the folding line 320 as a fulcrum, and the recess 315 is fitted to the rim of the container.

The clip portion 30 can be configured using, for example, paper or waterproof paper.

When the drip bag 1 is viewed from the side, the portion 100 is observed to have a substantially right triangle shape, and the portions 102 and 200 are observed to have a substantially rectangular shape. As an example, the drip bag 1 has a size of 12.5 cm on the long side of the portion 102 and 3 cm on the short side when viewed from the side, and the apex angle of the portion 100 is approximately 90°. The short side of the header portion 20 is 1.5 cm (the long side of the header portion 20 is substantially the same as the long side of the portion 102. However, the length of the header portion 20 does not extend to the outside when the drip bag 1 is viewed from the side. is the length of the exposed portion). However, these sizes are only examples.

(Fixed State of Bag Body 10, Header Part 20, and Clip Part 30)
In this embodiment, the bag body 10 and the header portion 20 are divided into an edge portion of the portion 102 (near the short side in a side view) and an edge portion of the header portion 20 (near the short side in the side view) when the drip bag 1 is viewed from the side. (near the short side) is fixed (fixed portion 50), and near the boundary between the portion 102 and the portion 100 (near the end of the long side of the portion 102 in side view), the header portion 20 (near the long side of the header portion 20 overlapping the bag body 10 in side view) is fixed (fixing portion 50a). Furthermore, in the side view of the drip bag 1, the edge portion of the header portion 20 (the vicinity of the short side in the side view) is also fixed (fixing portion 50b). Moreover, the bag 10 and the clip portion 30 are fixed at a predetermined portion of the support 300 of the clip portion 30 and the bag 10 at the fixing portion 52 .

The fixing portion 50, the fixing portion 50a, the fixing portion 50b, and the fixing portion 52 can be formed by various methods such as thermal welding, high-frequency welding, ultrasonic welding, or a method using an adhesive. In this embodiment, when a natural material and a nonwoven fabric are used, it is most preferable to use a technique that strongly bonds the natural material and the nonwoven fabric, for example, a welding method using ultrasonic vibration (ultrasonic welding). According to ultrasonic welding, adhesion between natural materials and nonwoven fabrics, adhesion between nonwoven fabrics, and adhesion between natural materials and paper can be achieved with sufficient strength. Further, ultrasonic welding can reliably prevent foreign matter such as adhesive from entering the drip bag 1 .

After filling the bag body 10 with the extraction material 70, the end of the header portion 20 opposite to the opening 10a side or the vicinity of the end opposite to the opening 10a is bonded by thermocompression or the like. It is sealed (this sealed region becomes the sealing portion 60). Ultrasonic welding may also be used to form the sealing portion 60, but from the viewpoint of simplification of manufacturing, it is preferable to form the sealing portion 60 by thermocompression bonding.

(Extraction material 70)
The extraction material 70 is coffee bean powder, tea leaves of black tea, green tea, oolong tea, or the like. In this embodiment, when coffee bean powder is used as the extraction material 70, the amount of the extraction material 70 to be filled in the bag 10 is preferably about 10 g to 20 g.

(Manufacturing method of drip bag 1)
FIG. 2 shows an example of an overview of a development view of a drip bag according to this embodiment.

In the drip bag 1, a bag body 10 made of natural fibers and a header portion 20 made of nonwoven fabric are adhered to each other, and a clip portion 30 is adhered to a predetermined position on the outer surface of the bag body 10. Manufactured by For example, as shown in FIG. 2 showing an example of a developed view of the drip bag 1, a first cloth-like body (a pair of short right-angled triangular cloth-like bodies) formed using natural fibers corresponding to the bag body 10 Two second cloth-like bodies (rectangular shape) formed using a non-woven fabric corresponding to the header portion 20 are superimposed on each other. The second cloth-like body overlaps the rectangular cloth-like body portion of the first cloth-like body. In this case, a region is provided in which a portion of the second cloth-like body does not overlap the first cloth-like body. Then, the first cloth-like body is folded along the perpendicular line of the longest side of the right-angled triangular cloth-like body portion.

Then, a region 15a (longest side region of the right-angled triangular portion) at a part of the end portion of the bag body 10 is sewn (the sewn portion 15 is thereby formed). From the viewpoint of preventing the extraction material 70 from spilling, the sewing pitch is preferably 0.5 mm or more and 10 mm or less, and more preferably 1 mm or more and 7 mm or less.

Further, in the folded state, the first cloth-like body and the second cloth-like body are overlapped with each other, and a predetermined region near each end (region corresponding to the fixing portion 50) and the portion 100 and the portion 102 (corresponding to the fixing portion 50a) and a predetermined region near the end of the short side (corresponding to the fixing portion 50b area) are fixed by ultrasonic welding. Furthermore, the clip portion 30 is arranged on each of the outer surfaces of one surface and the other surface of the bag body 10 facing each other, and the bag body 10 and a predetermined portion of the support 300 of the clip portion 30 are fixed by ultrasonic welding. Furthermore, a cut portion 40 is formed at a predetermined location of the header portion 20 . Thereby, the drip bag 1 is manufactured

Then, the bag body 10 is filled with a predetermined amount of a predetermined extraction material 70, and the end portion of the header portion 20 opposite to the opening 10a side or the vicinity of the end portion is thermally compressed to form the sealing portion 60, A drip bag 1 containing brewing material 70 is produced. The cut portion 40 may be formed after filling the bag body 10 with the extraction material 70 and forming the sealing portion 60 . Then, the drip bag 1 containing the extraction material 70 is enclosed in, for example, a laminate packaging bag or the like having an aluminum deposition film or the like.

(How to use drip bag 1)
FIG. 3 shows an example of how to use the drip bag according to this embodiment.

First, as shown in FIG. 3( a ), a portion of the header portion 20 is cut along the cut portion 40 of the drip bag 1 . Then, the drawer portion 310 of the clip portion 30 is lifted from the support 300 and the recessed portion 315 is inserted into the edge of the container 5 to fix the drip bag 1 to the container 5 . Here, in the present embodiment, the clip portion 30 provided on the outer surface of one side of the bag body 10 and the clip portion 30 provided on the outer surface of the other side are the front view or the The bag body 10 is provided so that the draw-out directions in a side view are opposite to each other. Therefore, as shown in FIG. 3(b), the pull-out portion 310 of the clip portion 30 on one side and the pull-out portion 310 of the clip portion 30 on the other side are raised in opposite directions to be fixed to the container 5. be. Therefore, when viewed from the top, the drip bag 1 can have the drawer portions 310 arranged at substantially point-symmetrical positions around the vertex of the portion 100, so that the drip bag 1 can be stably mounted on the container 5. can.

By pouring hot water into the opening 40 a formed after cutting the header portion 20 along the cut portion 40 , the liquid extracted from the extraction material 70 drips into the container 5 . Here, since the bag body 10 has a substantially conical portion 100 , the liquid extract drips into the container 5 from near the top of the portion 100 .

[Modification of drip bag]
FIG. 4 shows an outline of a modification of the drip bag according to this embodiment. The drip bag 1a according to the modification has substantially the same configuration and functions as the drip bag 1, except that the shape of the bag is different from that of the drip bag 1. FIG. Therefore, detailed description is omitted except for the differences.

The drip bag 1a is composed of a bag body 11 having a substantially oblique conical portion. That is, the bag body 11 is configured to have a portion 104 including a substantially oblique conical portion and a substantially cylindrical portion 106 . In the bag body 11 , the portion 104 including the substantially oblique conical portion and the substantially cylindrical portion 106 are continuous on the opposite side of the vertex of the portion 104 . The opening 11a of the bag body 11 is provided at the end of the portion 106 and opposite to the portion 104 side.

The bag body 11 has a stitched portion 16 closed by sewing on at least a portion of the edge portion excluding the opening 11a. For example, when viewed from the side, the end of the portion 106 (the portion 106 has a substantially rectangular shape when viewed from the side, and one short side portion of this substantially rectangular shape) and the end of the portion 104 are sewn together. is closed by As shown in FIG. 4B, the bag body 11 and the header section 20 are bonded together by a fixing section 50 using, for example, an ultrasonic welding method, in the same manner as the drip bag 1 . That is, in the drip bag 1a, the short side portion of the header portion 20 and a part of the short side portion of the portion 106 are adhered to each other in a side view, and the end region of the long side portion of the header portion 20 on the side of the portion 106 is bonded. The short side portions of the header portion 20 that do not overlap the portion 106 are also bonded together.

In the drip bag 1a, the bag body 11 filled with the extraction material 70 has a substantially oblique conical portion 104. As shown in FIG. Therefore, the vertex of the portion 104 is biased to one side on the right (or left) in a side view. Furthermore, in the drip bag 1a, the clip portion 30 is adhered to the bag body 11 so that the pull-out direction of the pull-out portion 310 is directed toward the side where the apex exists. That is, in the drip bag 1a, unlike the drip bag 1, the clip portion 30 provided on the outer surface of one surface of the bag body 11 and the clip portion 30 provided on the outer surface of the other surface are provided separately. The pull-out direction of the pull-out portion 310 in a front view or a side view is provided in the same direction.

As a result, in the drip bag 1a, when the drip bag 1a is attached to the container 5, the position at which one drawer portion 310 is attached to the container 5 and the position at which the other drawer portion 310 is attached to the container 5 are shown in top view. Since the position of the center of gravity of the extraction material 70 can be brought close to the line segment connecting the .

(Effect of Embodiment)
In the drip bag 1 according to the present embodiment, the bag body 10 filled with the extraction material 70 can be constructed using cotton, which is a natural material. You can easily drink flavored flannel drip coffee. In addition, the drip bag 1 is divided into the bag body 10 made of natural material and the header portion 20 made of nonwoven fabric, and the header portion 20 is made of a material that can be sealed by heat. After the bag body 10 is filled with the extraction material 70, a predetermined position of the header portion 20 can be heat-sealed. It is difficult to achieve a durable seal.). As a result, it is possible to easily manufacture the one-time use drip bag 1 using natural materials, which has been difficult in the past.

In addition, although the drip bag 1 according to the present embodiment uses natural materials, it can be easily enclosed in a laminate packaging bag or the like that blocks oxygen and the like, and can be stored for a long period of time, like conventional drip bags. . As a result, when the drip bag 1 is used, for example, when the extraction material 70 is coffee powder, the taste, aroma, etc. can be maintained for a long period of time. Furthermore, since the drip bag 1 according to the present embodiment can be used as a one-time-use drip bag, like the conventional flannel drip type extraction, the flannel filter before use is washed with water and then boiled. There is no need to boil the flannel filter to wash the fat remaining in the flannel filter, or to immerse the flannel filter in a container filled with cold water after boiling and store it in a cool, dark place. is. As a result, according to the drip bag 1 according to the present embodiment, it is possible to very easily brew good-tasting coffee or the like by the flannel drip method.

Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the scope of claims. Also, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

Reference Signs List 1, 1a drip bag 5 container 10, 11 bag body 10a, 11a opening 15, 16 sewn part 15a region 18 front surface 19 back surface 20 header part 30 clip part 40 cutting part 40a opening 50, 50a, 50b, 52 fixing part 60 sealing Stop 70 Extraction material 100, 102, 104, 106 Section 200 Section 300 Support 310 Drawer 315 Concave 317 Convex 320 Crease

Claims (6)

a bag made of natural fibers, having an opening and capable of being filled with an extraction material;
a header section fixed to the bag body overlying at least a portion of an edge portion of the opening, the header section being constructed using a heat-sealable material and having a portion extending outwardly from the opening of the bag body;
a clip portion provided on each of the outer surfaces of one surface and the other surface of the bag body,
A drip bag, wherein the heat-sealable material is a non-woven fabric. The drip bag according to claim 1, wherein said natural fiber is cotton. 3. The drip bag according to claim 1 or 2, wherein at least part of the edge of said bag body excluding said opening has a sewn portion. The drip bag according to any one of claims 1 to 3 , wherein the bag body has a substantially right conical portion. The drip bag according to any one of claims 1 to 3 , wherein the bag body has a substantially oblique cone-shaped portion. The drip bag according to claim 2, wherein the cotton has a basis weight of 60 g/m2 or ^more and 150 g/ ^m2 or less.

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