JP2507402B2 - Tea bag and manufacturing method thereof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a tea bag and a method for producing the same, and more specifically, a tea bag in which hanging threads with tags are easily attached, and a tea bag thereof. The present invention relates to a manufacturing method.

[Conventional technology]

In the conventional tea bag, in order to attach the hanging thread with the tag, the tag is bent and fixed to the bag body with a clasp. For this reason, the tag may come off from the bag body, the mounting process is complicated, and in order to maintain the accuracy and reliability of the processing process at a required level, it requires a high degree of skill of the worker and is expensive. There were drawbacks such as the need for mechanical equipment.

In other tea bags, use a slit tape with heat-sealing property as a hanging thread, wind this slit tape around the peripheral surface of the bag body, and fuse this at several places at intervals on the surface of the bag body. It has been known. In such a tea bag, there is a problem that the wall surface of the bag body may be broken when the slit tape is peeled off from the surface of the bag body. Further, this type of tea bag has a high fixing strength of the hanging thread and high productivity, but since the expensive heat-fusible slit tape is used, the cost of the tea bag as a whole becomes high. Have

Furthermore, as described in JP-B-55-39825,
Tea bags are also known in which hanging threads are adhered to the surface of the bag body, but the tags are not fixed, so when packing multiple tea bags in an outer bag and packaging, There was an inconvenience that it was troublesome.

[Problems to be Solved by the Invention]

An object of the present invention is to provide a tea bag in which a hanging thread with a tag is stably held on the surface of a bag body of a tea bag and which does not cause inconvenience in handling and packaging, and a continuous manufacturing method thereof.

[Means and actions for solving the problem]

The tea bag of the present invention comprises a water-permeable tea bag body having at least three edges heat-sealed, a leaching tee housed in the body, and a hanging thread with a tag bound to the body. Including, one end of the hanging thread is fixed to one point of the main body, and a tag is fixed to the other end, the hanging thread passes from one of the fixing points on the main body to one surface thereof, and It is characterized in that it is wound on the opposite side surface of the main body, and the tag is releasably attached to the opposite side surface.

Further, the tea bag manufacturing method of the present invention comprises: (A) One side of one side of a water-permeable sheet material having heat-sealing property in order to continuously manufacture the tea bag defined as above. A large number of hanging threads fixing the tags are arranged at a predetermined interval substantially at right angles to the longitudinal direction of the sheet material, and the tags are arranged on a half side surface of the sheet material with respect to its longitudinal axis. Peelably affixing to the sheet, and fixing the other end of the hanging thread to the other half side portion of the sheet material to produce a tea bag original fabric with hanging thread, (B) With the hanging thread While the tea bag stock is intermittently moved downward by a distance equal to the interval of the hanging thread, the following operations are sequentially performed: (a) The tea bag stock with a hanging thread is substantially stretched along its longitudinal direction. Operation of bending into a semi-cylindrical shape, (b) the half An operation of joining both side edges of the sheet material at the lower part of the tubular portion and heating and fusing the sheet material to form a tubular portion, (c) Stopping intermittent running of the original fabric of the tea bag with hanging thread. An operation of pressing and heating a strip-shaped region extending substantially at right angles to the longitudinal direction of the sheet material between adjacent hanging yarns in the lower part of the tubular portion to heat-seal the strip-shaped region. And (d) an operation of immediately cutting this heat-sealing zone along substantially the center line thereof to form a tea bag body, and (C) heat-sealing and cutting the lower part of the tubular portion. During operation, a step of charging a predetermined amount of leaching tee into the tubular portion through the semi-cylindrical portion is included.

The tea bag of the present invention is, for example, as shown in FIG. 3, a water-permeable sheet formed by folding a sheet of heat-fusible / water-permeable sheet and heat-sealing its three edges. The tag 4 is fixed to one end of the hanging thread 4, which is composed of the tea bag body 1, the leaching tee 3 housed in the body 1, and the hanging thread (synthetic fiber thread) 2 with the tag 4. This tag is releasably attached to a portion (upper center in FIG. 3) on one surface (front side in FIG. 3) of the main body 1, and the hanging thread 2 is attached to the main body 1. It is wound around one surface (front surface side in FIG. 3) to the opposite surface (back surface side in FIG. 3) of the main body 1, and the other end of the hanging thread 2 is at an arbitrary point (third surface) in the main body 1. It is fixed to the center upper part in the figure). That is, the hanging thread 2 is wound along both sides of the bag body 1 and does not extend from the body. Therefore, in such a tea bag, the tag and the hanging thread do not cause inconvenience and inconvenience during the handling and the packaging.

In FIG. 4, the tag 4 is attached to the center of the front side surface of the tea bag body 1 in the center. Even in such a tea bag, since the hanging thread 2 and the tag 4 are attached along the tea bag body, no inconvenience or inconvenience occurs during handling or packaging.

As shown in FIG. 5, the tea bag of the present invention, together with a hanging thread and a tag wound around and fixed to the tea bag, are orderly and easily packaged in a packaging case 5.
Can be housed inside.

In the method of the present invention, first, a tea bag original fabric with a hanging thread is prepared. For this reason, a large number of suspending threads (synthetic fiber threads) having a tag fixed at one end are provided on one surface of a heat-sealable long water-permeable sheet material in the longitudinal direction of the sheet material. With respect to the longitudinal axis of the sheet material, each tag is sequentially arranged at a predetermined interval in the direction at right angles,
One half side, that is, a predetermined position on the surface of the right or left half side, preferably on the side edge, or at a portion close thereto, is attached so that it can be easily peeled, And the other end of the hanging thread is adhered or fused to the other half side of the sheet material, that is, the predetermined position of the left or right half side, preferably on or near the side edge. Fix it. This fixing point may be on the front surface side or the back surface side of the other half side portion. As a result, there can be obtained a tea bag original fabric with a hanging thread in which a large number of hanging threads with tags are arranged and fixed in parallel to each other at predetermined intervals on the sheet material in a direction crossing the sheet material.

The tea bag original fabric with hanging thread thus obtained is subjected to a step of forming it into a bag.

As shown in FIG. 1, the tea bag original fabric 7 with hanging thread is rewound from the reel 6 on the original fabric mounting base,
The raw fabric 7 passes through the intermediate roll 8 and intermittently travels at a distance equal to the arrangement interval of the hanging thread while downward,
For example, it is fed into a tea bag body forming-tea filling device as shown in FIG. FIGS. 1 and 2 show the positions of a large number of tags 4 arranged at predetermined intervals on an original fabric that runs intermittently. As shown in FIG. 1 and FIG.
It is guided by 12 and is bent in a semi-cylindrical shape along its longitudinal direction. At this time, the hanging thread is positioned outside the curved surface. Next, the lower part of this semi-cylindrical body
While being fed downward by a pair of feed rolls 13, both side edge portions of the sheet material are overlapped and joined, and the joined side edge portions are heated from both sides by a pair of seal rolls 14 and fused to form a tubular body. To form.

While the intermittent running of the tubular body is stopped, a band-shaped region extending almost at right angles to the longitudinal direction of the sheet material between adjacent hanging threads 2 at the lower part of the tubular portion is received by the cradle 15 and the presser foot. Pressure is applied between 16 to heat the heat-bonded strip to heat-bond it. Immediately, the heat-bonded strip is cut by the fusing part 17 which moves substantially along its center line.

During the heat-sealing and cutting operations of the lower portion of the tubular portion, the leaching tee 3 is intermittently moved from the hopper 9 to the volume measuring device 10.
Then, a brewing tee having a predetermined volume is sampled, and the tee for leaching is intermittently fed and filled into the tubular portion of the tea bag through the opening of the semi-cylindrical portion by the guide of the shooter 11.
At this time, since the bottom of the tubular portion is pressure-welded, the leaching tee is filled in the bottom of the tubular portion. When this operation is completed, the pressing member 16 is opened, and the tea bag original fabric is run downward by a distance equal to the hanging thread interval distance. If the above operation is repeated, the tea bags 18 with hanging threads, which are filled with tea in sequence, are separated from the tea bag original fabric 7 and taken out into the lower table 19.

〔Example〕

 The present invention will be further described with reference to examples.

As a water-permeable and heat-fusible sheet material, a 110 mesh plain woven fabric (width 14 cm) made of nylon 6 monofilament (20 denier) was used.

A 1200 denier nylon 6 yarn (14 cm in length) was used as a hanging thread, and a paper tag was fixed to one end of the yarn by an ultrasonic sealing method. The back side of the tag (the hanging thread adhesive side)
Was covered with a plastic (polyethylene) film.

On one side of the original tea bag, along its longitudinal axis 5c
The hanging threads with tags are arranged parallel to each other at an interval of m, and one end of the hanging thread is fused on one side edge of the original fabric by the ultrasonic sealing method, and the other side edge of the original fabric is fused. The tag was attached to the part by an ultrasonic sealing method so that it could be peeled off.

The original tea bag pieces were subjected to the apparatus shown in FIGS. 1 and 2 to produce tea bags at a speed of 2400 pieces / hour by the above method.

〔The invention's effect〕

In the tea bag of the present invention, the hanging thread is wound around the outer surface of the main body of the tea bag, and the tag is attached onto the surface of the main body for easy peeling. For this reason, the tea bag has no inconvenience or inconvenience in its handling or packaging operation despite having the hanging thread, and therefore has extremely high work efficiency and economic efficiency.
Also, the hanging thread can have a length sufficient for using the tea bag, and the tag can be peeled off from the tea bag body very easily.

Further, the tea bag manufacturing method of the present invention enables a tea bag with a hanging thread to be manufactured efficiently and at high speed.

[Brief description of drawings]

FIG. 1 is a front view of one mode of an apparatus for carrying out the method of the present invention, FIG. 2 is a perspective explanatory view of a main part of the apparatus of FIG. 1, and FIGS. And FIG. 5 are front explanatory views each showing one aspect of the tea bag of the present invention, and FIG. 5 is a perspective explanatory view showing the packaging state of the tea bag of the present invention. 1 ... tea bag body, 2 ... hanging thread, 3 ... leaching tee, 4 ... tag, 5 ... packaging box, 6 ... reel, 7 ... tea bag material, 8 ... intermediate Roll, 9 ... Hopper, 10 ... Volume meter, 11 ... Shooter, 12 ... Half-fold guide, 13 ... Feed roll, 14 ... Seal roll, 15 ... Stand, 16 ... Presser, 17 …… Fusing part, 18 …… Tea bag, 19 …… Lower stand.

Claims (2)

(57) [Claims] 1. A water-permeable tea bag main body having at least three edges heat-sealed, a leaching tee contained in the main body, and a hanging thread with a tag bonded to the main body. One end of the hanging thread is fixed to one point of the main body,
A tag is fixed to the other end, and the hanging thread is wound from a fixing point on the main body through one surface thereof to the opposite side surface of the main body, and on the opposite side surface, the tag is attached. The tea bag is characterized by being peelably attached. 2. In order to continuously produce tea bags, (A) a plurality of hanging threads having a tag fixed at one end are provided on one surface of a water-permeable sheet material having heat-sealing property, Arranged at a predetermined interval substantially at right angles to the longitudinal direction of the sheet material, the tag is releasably attached to a half side surface of the sheet material with respect to its longitudinal axis, and A step of fixing the other end to the other half side of the sheet material to prepare a tea bag raw fabric with hanging thread, and (B) the tea bag raw fabric with hanging thread equal to the interval between the hanging threads. The following operations are carried out sequentially while traveling downward by distance intermittently: (a) an operation of bending the tea bag with a hanging thread into a substantially semi-cylindrical shape along its longitudinal direction, (b) the half At the lower part of the tubular part, An operation of joining and heating and fusing them to form a tubular portion. (C) Suspending adjacent lower portions of the tubular portion while the intermittent running of the tea bag with hanging thread is stopped. Between the threads,
An operation of pressing and heating a strip-shaped region extending substantially at right angles to the longitudinal direction of the sheet material to heat-seal the strip-shaped region, and (d) immediately making the heat-sealing strip-shaped region approximately the center line thereof. And a step of forming a tea bag body by cutting along with, and (C) during the heat-sealing and cutting operation of the lower portion of the tubular portion, passing through the semi-cylindrical portion into the tubular portion. A method of manufacturing a tea bag, comprising a step of charging a fixed amount of tea for infusion.