JP6530649B2 - Extraction bag, sheet for extraction bag - Google Patents

Description

  The present invention relates to an extraction bag for black tea, green tea and the like, and a sheet for an extraction bag constituting the extraction bag.

  The extraction bag disclosed in Patent Document 1 (title of the invention: yarn material) includes a triangular pyramid (tetrahedron) bag body constituted by a water permeable sheet, and a yarn whose one end is connected to the bag body, And a tag fixed to the other end of the thread. Since the tag is weakly connected to the bag body by heat welding using an ultrasonic welding device or the like, it can be peeled off from the bag body by picking and pulling the tag. When the extraction bag is used, the tag is peeled off from the bag body, and the tag is put in a cup or the like while the bag body is suspended. Then, hot water is poured into the cup to extract black tea and the like in the bag body.

WO 2010/146716

  In the above conventional extraction bag, if the connection strength of the tag to the extraction bag is too large, the bag body may be torn and a hole may be opened when the tag is peeled off, and if the connection strength is too small, the extraction bag is being transported. The tag may be detached from the bag body by vibration or the like. That is, before the extraction bag is used, the tag does not come off from the bag body, and in use it can be easily peeled off from the bag body, so that the bag body is not broken. Connection strength is required.

However, the bag body is made of synthetic resin non-woven fabric or mesh material, and in order to set the tag to the appropriate connection strength, it is necessary to make subtle adjustments on welding conditions such as pressure applied to the welding portion and welding temperature. There is a problem of being there. In particular, the thickness of the non-woven fabric may vary depending on the portion thereof, and adjustment for always making the connection strength of the tag appropriate is extremely difficult.
The present invention has been made focusing on the above-mentioned conventional problems, and it is not necessary to make delicate adjustments on welding conditions of the tag to the bag body, and the tag is detached from the bag body before using the extraction bag. An extraction bag which can be easily removed from the bag body at the time of use without damaging the bag body, and a sheet for the extraction bag used when manufacturing the extraction bag by a bag making and filling machine As its purpose.

The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 is characterized in that a bag body containing an extract such as black tea and formed by a water-permeable sheet, and one end portion of the bag body In an extraction bag having a connected thread and a tag fixed to the other end of the thread, wherein the tag is connected to the bag body by heat welding, the tag is firmly connected to the bag body And a non-connecting portion which is not connected to the bag body and to which the other end of the yarn is fixed, and a breakable portion is formed between the connecting portion and the non-connecting portion. The extraction bag is characterized in that the easily breakable part is broken by pulling the non-connecting part, and the non-connecting part is separated from the bag main body together with the yarn while leaving the connecting part in the bag main body.

  According to the invention of claim 2, in the extraction bag according to claim 1, the easily breakable portion is formed in a U shape in which a pair of ends is located at the edge of the tag, and the unconnected portion is released from the bag body The extraction bag is characterized in that a notch is formed in the non-connection portion, and the non-connection portion is locked by fitting the notch on an edge of a container such as a cup.

The invention according to claim 3 is a sheet for an extraction bag for forming the extraction bag according to claim 1 or 2 by a bag making and filling machine, the sheet serving as a component of the bag body, and the longitudinal direction of the sheet And a connecting portion disposed at regular intervals and having one end connected to the sheet, and a tag fixed to the other end of the thread, the tag being strongly connected to the sheet, It has a non-connected portion which is not connected to the sheet but to which the other end portion of the yarn is fixed, and an easily breakable portion is formed between the connected portion and the non-connected portion. It is a sheet for extraction bags.

  According to the extraction bag of the present invention, the tag can be prevented from peeling off from the bag body before using the extraction bag, and can be easily peeled off from the bag body at the time of use, thereby preventing damage to the bag body can do.

It is a perspective view of an extraction bag concerning an embodiment of the invention. It is a perspective view of the state which peeled off the tag of the extraction bag of FIG. 1, and the thread | yarn wound around the bag main body was unwound. It is a perspective view which shows the usage method of the extraction bag of FIG. It is a tag of the extraction bag of FIG. 1, and a partially enlarged view of the periphery. FIG. 2 is a plan view of a sheet for forming the extraction bag of FIG. 1 by a form-fill-seal machine. It is a top view which shows the connection state with respect to the bag main body of the tag of the extraction bag which concerns on other embodiment.

An extraction bag 1 according to an embodiment of the present invention will be described according to the drawings.
The code | symbol 3 shows a bag main body, This bag main body 3 is formed of the water-permeable sheet which consists of a nonwoven fabric made of a synthetic resin. The bag body 3 is formed in a triangular pyramid shape (tetrahedron), and contains black tea T as an extract.

Reference numeral 5 denotes a yarn, and one end 5b of the yarn 5 is thermally welded and connected to the bag body 3. The yarn 5 is located substantially at the center in the left-right direction of FIG. 4 and is connected at a welding portion 5 a located near the upper side of the tag 7.
Further, a tag 7 is firmly fixed to the other end of the yarn 5, and the tag 7 is formed of a square sheet of paper coated on one side with a thermoplastic resin. In FIG. 4, the easily breakable portion 9 is formed on the right side of the tag 7, and the easily breakable portion 9 is composed of a cut portion 9a and a cooperation portion 9b connecting the cut portions 9a. The easily breakable portion 9 is formed in a U-shape, and the pair of end portions 9 c of the easily breakable portion 9 is located at the edge of the tag 7.

  A region surrounded by the easily breakable portion 9 of the tag 7 is a connecting portion 7a, and a region outside the easily breakable portion is a non-connecting portion 7b. That is, the easily breakable portion 9 is formed between the connecting portion 7a and the non-connecting portion 7b. The tag 7 is thermally welded to the bag body 3 at the fixing portion 11, and the fixing portion 11 is located at the connecting portion 7a. The fixed portion 5a of the yarn 5 described above is located at the non-connecting portion 7b.

The usage method of this extraction bag 1 is demonstrated.
From the state shown in FIG. 1, the non-connected portion 7b of the tag 7 is picked and pulled. As a result, the interlocking portion 9b of the easily breakable portion is broken and the easily breakable portion 9 is broken, and the unconnected portion 7b and the yarn 5 are separated from the bag body 3 while leaving the connected portion 7a in the bag body 3 as shown in FIG. break away. As a result, in the non-connecting portion 7 b of the tag 7, the concave portion 13 having a shape corresponding to the connecting portion 7 a is formed.

  As described above, since the non-connecting portion 7b is disconnected from the easily breakable portion 9 and separated from the connecting portion 7a, the connection between the connecting portion 7a and the bag body 3 is not affected. Therefore, it can be easily removed from the bag body 3 and moreover, damage to the bag body 3 can be prevented. In addition, since the tag 7 is firmly fixed to the bag body 3 at the fixing portion 11 provided in the connecting portion 7a, the tag 7 can be prevented from peeling off the bag body 3 before using the extraction bag 1 .

As shown in FIG. 3, the recess 13 is fitted on the edge of the cup C to lock the non-connecting portion 7b. Then, the hot water W is poured into the cup C, and the black tea in the bag body 3 is extracted. Since the non-connecting portion 7b is locked to the edge of the cup C, the non-connecting portion 7b is in the cup C even if a force is exerted to pull the non-connecting portion 7b into the cup C by the hot water W Can be prevented from falling.
If necessary, the degree of extraction of black tea T is adjusted by removing the non-connecting portion 7 b from the edge of the cup C and moving the yarn 5 up and down together with the bag body 3.

FIG. 5 shows an extraction bag sheet 15 for forming the extraction bag 1 by the form-fill-seal machine.
The code | symbol 16 shows the sheet | seat used as the constituent material of the bag main body 3, This sheet | seat 16 has comprised the elongate strip | belt shape which consists of nonwoven fabrics. Yarns 5 are attached to the sheet 16, and the yarns 5 are arranged at equal intervals in the longitudinal direction of the sheet 16. One end 5b of the yarn 5 is welded to the sheet to be connected, and the tag 7 is fixed to the other end . The connecting portion 7 a of the tag 7 is firmly fixed to the sheet 16 at the fixing portion 11 by thermal welding. The tags 7 are arranged at equal intervals from one another, and the two tags 7 are paired, and the connecting portions 7a of the one pair of tags 7 are provided to face each other.

FIG. 6 shows a tag and a thread according to another embodiment.
In the description of the embodiment shown in the figure, the same components as those of the extraction bag 1 according to the above embodiment will be denoted by the same reference numerals as the above embodiment, and the description thereof will be omitted.
The tag 17 of (a) is welded to the bag body 3 to form a circular easily breakable portion 19. When the non-connecting portion 17b of the tag 17 is separated from the connecting portion 17a, a circular hole is formed, and the connecting portion 17a becomes circular. The tags described in (b) to (f) below are also welded to the bag body 3 in the same manner as the tag 17.
In the tag 27 of (b), the easily breakable part 29 crossing the tag 27 is formed near the upper end. The non-connecting portion 27b becomes a rectangle when separated from the connecting portion 27a, and the connecting portion 27a becomes a rectangle having a smaller height than the non-connecting portion 27b.
The tag 37 of (c) is formed with an arc-shaped easily breakable portion 39 centered on the upper left corner thereof. When the non-connecting portion 37b is separated from the connecting portion 37a, the corner has a fan-like shape which is missing from the square, and the connecting portion 37a is fan-shaped.

In the tag 47 of (d), an easily breakable part 49 which longitudinally cuts the tag 47 is formed near the right end. The non-connecting portion 47b becomes a rectangle when it is separated from the connecting portion 47a, and the connecting portion 47a becomes a rectangle having a smaller width than the non-connecting portion 47b.
The tag 57 of (e) is formed with an easily breakable portion 59 having a curved shape connecting upper corner portions. When the non-connecting portion 57b is separated from the connecting portion 57a, the upper end portion of the non-connecting portion 57b is missing in an arc shape from the square, and the connecting portion 57a has an arc shape.
In the tag 67 of (f), an arc-shaped easily breakable portion 69 is formed at the upper end portion. The non-connecting portion 67b becomes a square having a circular missing portion partially cut off at the center of the upper end portion when it is separated from the connecting portion 67a, and the connecting portion 67a becomes a partially missing circular shape.

As mentioned above, although the embodiment of the present invention has been described in detail, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the scope of the present invention included.
For example, although the bag main body formed in a triangular pyramid shape (tetrahedron) is shown in the above embodiment, the present invention is not limited to this, but may of course be applied to a flat bag type bag main body is there.
Further, the bag main body is not limited to the non-woven fabric, and of course it may be made of a synthetic resin mesh material.
The extract is not limited to black tea, but may be green tea, coffee, or a scraped node.

  The extraction bag of the present invention is manufactured using the sheet for extraction bag of the present invention by a form-fill-seal machine, and has applicability to the tea bag manufacturing industry and the like.

DESCRIPTION OF SYMBOLS 1 ... Extraction bag 3 ... Bag main body 5 ... Thread 5a ... Welding part 5b One end part of thread | yarn 7, 17, 27, 37, 47, 57, 67 ... Tag 7a, 17a, 27a, 37a, 47a, 57a, 67a ... Connection part 7b, 17b, 27b, 37b, 57b, 67b ... non-connection part 9 ... easy break part 9a ... cut part 9b ... cooperation part 9c ... pair of end parts of easy break part 11 ... fixed part 13 ... concave part 15 ... sheet for extraction bag 16 ... sheet T ... tea C ... cup W ... hot water

Claims (3)

It has a bag body containing a to-be-extracted substance such as black tea and formed by a water-permeable sheet, a thread whose one end is connected to the bag body, and a tag fixed to the other end of the thread, An extraction bag connected by heat welding to the bag body,
The tag has a connecting portion firmly connected to the bag body, and a non-connecting portion not connected to the bag body and to which the other end of the thread is fixed, and the connecting portion and the non-connecting portion A frangible part is formed between the part and the frangible part is broken by pulling the non-connecting part, and the non-connecting part is from the bag main body together with the yarn while leaving the connecting part in the bag main body An extraction bag characterized by being detached.   2. The extraction bag according to claim 1, wherein the easily breakable portion is formed in a U shape in which a pair of ends is located at the edge of the tag, and the unconnected portion is notched when separated from the bag body. An extraction bag characterized in that the notched portion is locked by fitting the notch to the edge of a container such as a cup. It is a sheet | seat for extraction bags for forming the extraction bag described in Claim 1 or 2 with a bag making and filling machine, Comprising: The sheet | seat used as the constituent material of a bag main body, and opening the equal intervals in the longitudinal direction of the said sheet One end of which is a thread connected to the sheet and a tag fixed to the other end of the thread, the tag being connected to the sheet firmly connected to the sheet and not connected to the sheet A sheet for an extraction bag, comprising: a non-connecting portion to which the other end portion of the yarn is fixed; and an easily breakable portion is formed between the connecting portion and the non-connecting portion.

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