JP2006282235A - Bag for brewing coffee and other tasting drinks - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop a brewing bag for use in brewing coffee, black tea and the like having such a structure as one in which the outer surface of the brewing bag does not closely contact with the inner surface of a cup at the time of brewing so as to improve its brewing characteristic. <P>SOLUTION: A part of a handle holding portion of a brewing bag is kept under its non-adhered state, a downward open slit is also arranged at that part and the outer periphery of the handle holding portion is provided with a plurality of protrusions. When the handle is pulled up to open the brewing bag, non-adhesion part of the handle holding portion becomes to protrude out of a bag main body, four slits in the handle part and the non-adhesion part are inserted into the edge of a cup to cause the brewing bag to be held at its stable state and at the same time a close contact between the outer surface of the bag and the inner surface of the cup is prevented and a brewing characteristic is improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a bag for extracting coffee, black tea, sencha, oolong tea and other palatable beverages. More specifically, when the bag is widened by causing the handle of the bag, the surface of the bag adheres to the inner surface of the cup by the action of a protrusion attached to the handle holding portion or a protrusion for holding the edge of the cup. It has a function that can be prevented. It is a bag for extracting coffee and other palatability beverages that have the effect of further enhancing the extractability of coffee and the like by these functions.

Conventionally, there are many drip methods for extracting coffee, and recently, the paper drip method is most widely used. However, there are still many problems in handling in addition to extractability such as leakage of fine particles and fats and oils, and many attempts have been disclosed for the shape and material of the bag in order to improve these points.

For example, Japanese Utility Model Laid-Open No. 55-123480 discloses a filter having a shape that can be extracted by attaching a handle to a filter and hung it on the edge of a cup or the like, and Japanese Patent Laid-Open Nos. 3-210214 and 3-218711. JP-A-7-223 discloses a filter that can be extracted while being provided on the side of the cup for a long time by providing a handle with a notch on the side of the filter. Further, JP-A-6-315435 discloses a method for improving stability when a filter is held on the edge of a cup by providing a handle having a notch on the side of the filter and an auxiliary handle. However, when using the method in which hot water is injected from the upper part of the filter, there is still a problem in making the thickness of the filtration layer such as coffee particles inside the filter uniform and ensuring sufficient stability. In addition, it has been pointed out that when the surface of the bag comes into contact with the inner surface of the cup during extraction, the extractability deteriorates.

Recently, with the addition of a complicated plastic or cardboard bag holding mechanism, almost all of the bag is placed on the rim of the top of the cup when in use, and coffee bags with excellent extractability and stability are rapidly becoming popular. is doing. However, these have a complicated structure and are expensive, and problems have been pointed out from the viewpoint of environmental protection as disposable daily necessities. In addition to coffee, there is still room for improvement in various points when used for extraction of teas such as black tea, sencha, oolong tea, and health tea.
Japanese Utility Model Publication No.55-123480 Japanese Patent Laid-Open No. 3-210214 JP-A-3-218711 Japanese Utility Model Publication No.7-223 JP-A-6-315435 Japanese Patent Application 2004-382182

In view of the problems of these extraction bags, when extracting coffee or other palatable beverages, the cups can be expanded to a wider range by further improving the structure and functions of the handle attached to the side of the bag and the auxiliary handle. Developed an extraction bag that can be applied to sizes and shapes, and has a function to further enhance the extractability by preventing the surface of the bag from adhering to the inner surface of the cup and preventing the extractability from being hindered. It is something to be offered.

The extraction bag of the present invention is used for extraction of teas such as tea as well as coffee, but the shape and size of these cups are wide-ranging. There are many types of extraction bags currently on the market, but there is still plenty of room for improvement to adapt to a wider range of cup shapes, sizes and lip inclinations. . During the use, hot water is poured into the extraction bag to extract coffee and the like, so that a part of the outer surface of the extraction bag tends to adhere to the inner surface of the cup. For this reason, the degree of extraction of coffee particles, tea leaves, etc. may cause partial non-uniformity, which may impair the bag extractability. In order to prevent this, a plurality of protrusions are provided on the outer periphery of the handle holding portion, and a part of the handle holding portion is held in an unbonded state with the extraction bag so that these protrusions are outside the extraction bag. By protruding over, the outer surface of the extraction bag can be prevented from sticking to the inner surface of the cup. These actions have the effect of preventing the occurrence of partially uneven extraction and increasing the extraction speed.

In particular, in order to adapt even when the mouth edge of a cup of coffee or the like has a wide range of inclinations, a constricted part is formed in the middle part of the notch opened downwardly provided inside the handle of the extraction bag. It is conceivable that the shape of the cut portion is similar to the numeral 8 and that the outer tip of the cut has an acute angle. Even when the mouth edge of the cup has a wide range of inclination due to the holding action of the constricted portion inside the cut and the acute angle portion outside the tip of the cut, all the edges of the inserted cup are more confused with the extraction bag. It can be connected tightly. For this reason, the extraction bag is held in a preferred posture when inserted during extraction, and the extractability is improved.

In the other embodiment of the extraction bag of the present invention shown in FIG. 2, protrusions (5), (5) ′ and (6), (6) ′ are formed on the outer periphery of the grip holders (3), (3) ′. Is provided. Further, part (4), (4) ′ of the handle holding part is held in an unbonded state. For this reason, the grip holders (4) and (4) 'are shaped so as to protrude to the outside of the extraction bag when in use, so that the gap between the outer surface of the extraction bag and the inner surface of the cup is increased, 2) is prevented from sticking to the inner surface of the cup. Therefore, the extractability is not hindered by the close contact of the outer surface of the extraction bag with the cup. This action is further enhanced in combination with the protrusions (5), (5) 'and (6), (6)' provided on the outer periphery of the handle holding portions (3), (3) '.

In the embodiment of the extraction bag of the present invention described above, the greatest feature is that the bag body (2) and the parts (4), (4) 'held in an unbonded state are also provided with a notch opened downward. It is a point. For this reason, if the notch of a handle and an unadhered part is inserted in the edge of a cup, a bag will be in the state held by these four notch parts. For this reason, it becomes possible to hold | maintain a cup in the more stable preferable attitude | position at the time of use, and it becomes a result that extractability, such as coffee, is improved more. The present invention has been reached based on these findings.

That is, the extraction bag (1) is composed of a bag body (2) and handle holders (3) and (3) ′, and the bag body (2) is formed in a rectangular shape with a flexible sheet having filterability. The two grip holders (3) and (3) ′ are composed of a seat with a waist, and are attached at symmetrical positions on both the front and back sides of the bag body (1). Parts (4) and (4) 'of the grip holders (3) and (3)' are held in an unbonded state, and protrusions (5) are formed on the outer periphery of the handle holders (3) and (3) ' , (5) ′, (6), (6) ′, (7), (7) ′, (8), (8) ′. Inside the handle holding portions (3) and (3) ′, the handles (10) and (10) ′ are formed through the perforations (9) and (9) ′, and the handles are opened downward. (11), (11) ′ are provided, the inside of the cut includes constricted portions (12), (12) ′, and the outer tips (14), (14) ′ of the cut have an acute angle. Yes.

Raise the extraction bag (1) by raising the handle (10), (10) 'when in use, and insert the notches (11), (11)' into the cup rim, then the constricted part (12), (12) The handle and the cup are fixed tightly by the action of making the outer tip (14), (14) 'of the cut and the cut and the acute angle. Furthermore, the grip holding part (3), (3) 'protrusion (5), (5)', (6), (6) ', (7), (7)', (8), (8) 'on the outer periphery By this action, the bag body (2) is a bag for extracting coffee and other palatable beverages, which has a feature that the outer surface of the bag body (2) is prevented from sticking to the inner surface of the cup.

The extraction bag (1) is composed of a bag body (2) and handle holders (3), (3) ′, and the bag body (2) is formed in a rectangular shape with a flexible sheet having filterability. The two grip holders are composed of seats with waist, and are attached to symmetrical positions on the front and back sides of the bag body (2), but part of the handle holders (3) and (3) '(4 ), (4) 'is held in an unbonded state with the bag body (2). Cuts (13) and (13) ′ that open downward are provided in the portion, and protrusions (5), (5) ′, and (6) are provided on the outer periphery of the grip holders (3) and (3) ′. , (6) 'are provided, and inside the handle holding portions (3), (3)', the handles (10), (10) 'are formed through the perforations (9), (9)'. ing. Further, the handles (10) and (10) ′ are provided with cuts (11) and (11) ′ opened downward.

When the handle (10), (10) ′ is raised during use, the handle (10), (10) ′ is raised and the extraction bag (1) is spread, the unbonded part (4), (4) ′ of the handle holding part Has a shape protruding from the bag body (2). When the notches (11), (11) ′ and (13), (13) ′ of the handle and the unbonded portion are inserted into the edge of the cup, the bag is held by the four notched portions, and the protrusion (5), (5) A bag for extracting coffee and other palatable beverages, characterized in that the bag body (2) is prevented from sticking to the inner surface of the cup by ′ and (6), (6) ′.

The upper end of the extraction bag (1) is sealed, and the top of the bag has one perforation line or two or more parallel perforation lines. The extraction bags according to any one of claims 1 to 2 are also included in the present invention. Further, the extraction bag according to any one of claims 1 to 3, wherein the bottom of the extraction bag (1) has a shape including a tip, is also included in the present invention.

Furthermore, the handle holding part according to any one of claims 1 to 4 is a roll wound after being fused at a predetermined interval on the front and back of a cylindrical filterable sheet that is folded flat, and coffee or the like. The material sheet of the bag for extracting coffee and other palatable beverages for filling a certain amount or making a bag as an extraction empty bag is also included in the present invention.

The extraction bag of the present invention is used for extracting coffee and other palatable beverages, but the shape and size of these cups, the inclination of the lip and the like are wide-ranging. In the present invention, a plurality of protrusions are provided on the outer periphery of the handle holding portion, and a portion of the handle holding portion is held in an unbonded state with the extraction bag, thereby preventing adhesion between the cup inner surface and the bag outer surface, There is an effect of preventing a part of coffee particles and the like from being poorly extracted. In addition, the handle is provided with a constricted portion inside the notch that opens downward, and the outer tip (14), (14) 'of the notch has an acute angle, so that the handle and the cup are fitted and tight. Thus, the bag is held in a stable posture, and the extractability is enhanced.

In the other embodiment of the present invention shown in FIG. 2, a plurality of protrusions are provided on the outer periphery of the handle holding portions (3) and (3) ', and a part of the handle holding portion is not bonded to the bag body. By holding, the grip holding portion is protruded to the outside of the extraction bag when in use, the gap between the outer surface of the extraction bag and the inner surface of the cup is opened, and the bag body (2) is placed on the inner surface of the cup. There is an effect that adhesion is prevented. In addition, the part that is held in an unbonded state with the extraction bag is also provided with a notch that opens downward, and the bag during use has a more stable posture during use due to the four points of the handle and the unbonded part. It becomes possible to hold | maintain and extractability can be improved further.

The raw materials used in the extraction bag of the present invention are coffee and other palatability drinks. Other preferred beverages include, for example, teas such as black tea, sencha, oolong tea, barley tea, kelp tea, and health tea.

The extraction bag of the present invention needs to be made of a flexible sheet having filterability, and the material is not particularly limited and can be widely used if it is a woven fabric, knitted fabric, non-woven fabric, paper or a composite material thereof. . There are subtle differences in filterability depending on the material and structure of the bag, which may affect the flavor of the resulting coffee and other palatability drinks. For example, the most important property required for a filter in order to make coffee with a good aroma and richness is that fine particles of coffee do not leak into the liquid. Further, it is necessary to absorb and remove the oil and fat contained in the coffee liquid so that the oil film does not float on the surface of the cup. All of these are factors that significantly impair the taste of coffee. If fine particles are mixed in, it feels bad to the touch, and if oil or fat floats on the surface of the cup, it is not preferred.

The material of the extraction bag such as coffee used in the present invention is not particularly limited, and a wide range of filter cloths can be used as described above. Nonwoven fabrics containing ultrafine fibers with a fineness of about 0.2 denier or less are known as a material for preventing the leakage of fine particles and improving the adsorption of fats and oils. Therefore, such a material is preferable for the bag of the present invention. The ultrafine fibers can be produced from, for example, a thermoplastic polymer by a melt blow method. Examples of the thermoplastic polymer include polypropylene and polyethylene. Further, by using such a non-woven fabric layer of super extra fine fibers and a composite non-woven fabric of a support layer made of fibers having a normal thickness, the filterability and the mechanical properties of the filter fabric can be further improved.

The shape of the bag body (1) is rectangular as shown in Fig. 1, and the coffee particles, tea, etc. are enclosed inside and immersed in hot water, as is generally used in the past. You can also. In addition, it is not necessary to limit in particular to a rectangle, Of course, a square can also be used, or if the bottom of the extraction bag has a shape including a pointed end, it is preferable because the liquid runs out during extraction. Recently, a system in which a complicated bag holding mechanism such as plastic or cardboard is added to a bag enclosing coffee particles is also used. During extraction, the bag is held on the cup so that the lower end of the bag and the liquid level of the cup where the extract is collected do not contact each other, and the extract is often dripped from the lower end of the bag. .

Further, the handle holding part and the handle are preferably made of a seat with a waist. “Having a waist” is a sheet having a certain degree of rigidity and elasticity, such as Kent paper, and having a property of being held in its shape when deformed. Paper or plastic sheet with a little thickness. Moreover, since the handle holding part is normally used in the state immersed in hot water, the material which has water resistance is preferable.

The extraction bag of the present invention can be used after sealing the contents and sealing the upper end, opening it during use, and pouring hot water from that portion. Alternatively, it is also possible to put a content such as coffee particles in a bag in an open state as needed and inject hot water from above. Hereinafter, the present invention will be described more specifically with reference to examples.

FIG. 1 shows a front view of one embodiment of a bag for extracting coffee and other palatable beverages according to the present invention. The material of the bag body (2) is a non-woven fabric with a basis weight of 10 g / m ² , a thickness of about 0.12 mm, made of polyethylene meltblown fiber with a diameter of 5 μm, which has excellent filterability, a fineness of 1.5 denier (diameter of about 163 μm), and short It consists of a two-layer laminate with a basis weight of 10 g / m ² and a non-woven fabric with a thickness of 0.08 mm made of polyester fiber with a length of 50 mm. A large number of fiber fusion zones are regularly arranged at predetermined intervals on the surface of the bag. The fiber fusion zone is also effective for improving the strength and dimensional stability of the nonwoven fabric. The ratio of the fiber fusion zone to the total surface area is about 17%.

FIG. 1 shows a front view of one aspect of the coffee and other palatable beverage extraction bag of the present invention. The extraction bag (1) is composed of a bag body (2) and handle holding portions (3) and (3) ′. The front shape of the extraction bag body (2) is a vertically long rectangle, which is a two-layer nonwoven fabric laminate. Moreover, in order to enlarge the capacity | capacitance of a bag, the bag of the aspect which entered the gathers in both sides can also be used. The handle holding portions (3) and (3) 'are attached to symmetrical positions on both the front and back sides of the bag, and the handles (10) and (10)' are formed through the perforated perforation inside. Yes. The handle holders are all made of thick paper with water resistance and waist.

Parts (4) and (4) 'of the handle holders (3) and (3)' are held in an unbonded state with the bag body (2), and the handle holders (3) and (3) ' Protrusions (5), (5) ′, (6), (6) ′, (7), (7) ′, (8), (8) ′ are provided on the outer periphery. The grip holders (3) and (3) 'are fused to the surface of the bag body (2) by heat press, but the handle (10), connected to the inside through a perforation, The portion (10) ′ is not fused to the surface of the bag body (2).

Inside the handles (10) and (10) 'are provided incisions (11) and (11)' that are open at the bottom, and the inside of the notches includes constricted parts (12) and (12) '. Yes. For this reason, the cut portion has a shape similar to the numeral 8. The tip of the cut is usually rounded, but the outer tips (14) and (14) 'have an acute angle in the embodiment of the present invention.

Raise the extraction bag (1) by raising the handle (10), (10) 'when in use, and insert the notches (11), (11)' into the cup rim, then the constricted part (12), (12) Due to the action of making 'and the outer tips (14), (14)' of the notches acute, even when the mouth edge of the cup has a wide range of inclination, the cup edge and the handle are more tightly connected. Further, the protrusions (5), (5) ', (6), (6)', (7), (7) ', (8) provided on the outer periphery of the grip holder (3), (3)' (8) The effect of ′ is to prevent the bag body (2) from being in close contact with the inner surface of the cup. For this reason, the extractability of coffee particles or the like enclosed in the extraction bag is further enhanced.

The upper end of the extraction bag (1) is sealed, and the top of the bag has one perforation line or two or more parallel perforation lines. Can be provided alternately.

FIG. 2 shows a front view of one embodiment of the coffee and other palatable beverage extraction bag of the present invention, and FIG. 3 shows a perspective view when the extraction bag is attached to a coffee cup. The extraction bag (1) is composed of a bag body (2) and handle holders (3) and (3) ′. The front shape of the extraction bag body (2) is a vertically long rectangle, and the material of the sheet is the same as in Example 1; a nonwoven fabric with a basis weight of 10 g / m ² and a thickness of about 0.12 mm made of polyethylene meltblown fiber with a diameter of 5 μm. And a two-layer laminated sheet made of a non-woven fabric having a fineness of 1.5 denier (diameter of about 163 μm), a short fiber and a polyester fiber having a length of 50 mm and a basis weight of 10 g / m ² and a thickness of 0.08 mm. The bottom side of the extraction bag (1) may have a shape including a point. It is preferable because the liquid runs out during use.

The grip holders (3) and (3) 'are attached to symmetrical positions on the front and back sides of the bag, and parts (4) and (4)' are held in an unbonded state with the bag body (2). ing. The unbonded portions (4) and (4) ′ are provided with cuts (13) and (13) ′ that open downward. Further, protrusions (5), (5) 'and (6), (6)' are provided on the outer periphery of the handle holding portions (3), (3) '. Handles (10) and (10) 'are provided inside the handle holding portions (3) and (3)' through perforations (9) and (9) '.

FIG. 3 shows a perspective view when the extraction bag is attached to a coffee cup. When the extraction bag is used, the handle (10), (10) 'is pinched to cause the extraction bag (1) to be widened, and the unbonded part (4), (4)' of the handle holding part is ) Overhangs. Further, when the notches (11), (11) ′ and (13), (13) ′ of the handle and the unbonded portion are inserted into the edge of the cup, the bag is held in a stable posture by the four notched portions. As shown in FIG. 3, since the outer surface of the bag body (2) is held at a position away from the inner surface of the cup (15), the bag does not directly contact the inner surface of the cup and the extractability does not deteriorate. In addition, since the bag is held in a four-point support state, the cup edge and the handle are more tightly connected even when the lip of the cup has a wide range of inclination, and the cup is held in a stable state during use. Therefore, extractability is excellent.

FIG. 4 shows a front view of the raw material sheet of the extraction bag of the present invention. A long and narrow envelope-like sheet (16) made of polylactic acid fiber and having filterability was used as a raw material. A grip holder is fused in advance by heat press at symmetrical positions on the front and back of the raw material sheet. While the raw material sheet is filled with coffee particles or other palatable beverage ingredients, a fusion line (17) is formed.

Or since it is used as an empty bag for inserting coffee particles or the like when used as an empty bag for coffee and other palatable beverage extraction bags, a fusion line (17) may be formed. Alternatively, it is possible to obtain a substantially tetrahedral tetrapack in which a raw material of a palatable beverage is sealed inside by fusing and fusing a cylindrical raw material sheet alternately at right angles to the length direction at regular intervals. .

As a simple extraction bag for preparing coffee or the like, its function and extractability are excellent, so it can be used in a wide range of methods and places.

The front view of the one aspect | mode of the bag for coffee of this invention and other palatability drink extraction is shown. The front view of the other one aspect | mode of the bag for coffee and other palatable beverage extraction of this invention is shown. The perspective view of the state which has mounted | wore the cup and using the extraction bag of this invention shown in FIG. 2 is shown. The front view of the raw material sheet | seat of the bag for coffee of this invention and other palatability drinks is shown.

Explanation of symbols

1 Extraction bag
2 Bag body
3, 3 ′ Handle holder
4, 4 ′ Unbonded part of the grip holder
5, 5 ', 6, 6' 7, 7 ', 8, 8' Protrusion on the outer periphery of the grip holder
9, 9 ′ perforation
10, 10 'handle
11, 11 'handle cut
12, 12 'Constricted part inside the notch of the handle
13, 13 'Cut the unbonded part of the grip holder
14, 14 'Outer end of the handle cut
15 coffee cups
16 Tubular raw material sheet
17 Fusing and cutting lines for cylindrical raw material sheets
18 Folding line of cylindrical raw material sheet

Claims (5)

The extraction bag (1) is composed of a bag body (2) and a grip holder (3), (3) ', and the bag body (2) is made of a flexible sheet having a filter property and is formed into a rectangular shape. The holding parts (3) and (3) ′ are composed of seats with waist and are attached to the front and back sides of the bag body (1) symmetrically, but the handle holding parts (3) and (3) ′ Part (4), (4) 'is held in an unbonded state, and protrusions (5), (5)', (6), (6 ) ′, (7), (7) ′, (8), (8) ′, and the perforations (9), (9) inside the handle holders (3), (3) ′ '(10), (10)' is formed through the handle, the handle is provided with a notch (11), (11) 'that opens downward, the constricted part (12), ( 12) ′ and the outer tip (14), (14) ′ of the incision is acute, causing the handle (10), (10) ′ to widen the extraction bag (1) when in use, and the cup When the notches (11) and (11) ′ are inserted into the edges of the handle, the constricted portions (12) and (12) ′ and the outer tips (14) and (14) ′ of the notches are sharpened, and the handle and cup And the grip holders (3), (3) 'protrusions (5), (5)', (6), (6) ', (7), (7)', (8), (8) A bag for extracting coffee and other palatable beverages, characterized in that ′ prevents the bag body (2) from sticking to the inner surface of the cup. The extraction bag (1) is composed of a bag body (2) and a grip holder (3), (3) ', and the bag body (2) is made of a flexible sheet having a filter property and is formed into a rectangular shape. The holding part consists of a seat with a waist and is attached to the front and back sides of the bag body (1) symmetrically, but part of the grip holding part (3), (3) '(4), (4 ) ′ Is held in an unbonded state, and cuts (13) and (13) ′ that are opened downward are provided in that portion, and protrusions (3) and (3) ′ 5), (5) ′ and (6), (6) ′ are provided, and inside the handle holding portions (3), (3) ′, there are handles through the perforations (9), (9) ′. (10), (10) 'are provided, and the handles (10), (10)' are provided with incisions (11), (11) 'that open downward. 10) ′ is raised to raise the handle (10), (10) ′ and the extraction bag (1) is spread, and the unbonded part (4) of the handle holding part (4) ′ has a shape protruding from the bag body (2), and when the handle (11), (11) ′ and (13), (13) ′ are inserted into the edge of the cup, the bag In addition to being held by the four cut portions, the protrusions (5), (5) 'and (6), (6)' prevent the bag body (2) from being in close contact with the inner surface of the cup. A bag for extracting coffee and other palatable beverages. The upper end of the extraction bag (1) is sealed, and the top of the bag has one perforation line or two or more parallel perforation lines. The bag for extracting coffee and other palatable beverages according to any one of claims 1 to 2, wherein is provided alternately. The bag for extracting coffee and other palatable beverages according to any one of claims 1 to 3, wherein the bottom of the extraction bag (1) has a shape including a tip. The handle holding part according to any one of claims 1 to 4 is rolled up after being fused at regular intervals on the front and back of a tubular filterable sheet that is folded flat, and a certain amount of coffee or the like is taken up. A raw material sheet for extracting coffee and other palatable beverages, which is filled in one by one or as an empty bag for extraction.

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