WO2010029651A1

WO2010029651A1 - Method for manufacturing sheet for extraction bags

Info

Publication number: WO2010029651A1
Application number: PCT/JP2008/072637
Authority: WO
Inventors: 行夫長谷川; 良一石原; 南生子山口
Original assignee: 大紀商事株式会社
Priority date: 2008-09-10
Filing date: 2008-12-12
Publication date: 2010-03-18
Also published as: TW201010915A; JP2010064769A; CN102149604B; CN102149604A; KR20110050584A; TWI365835B; KR101539807B1; JP5196154B2

Abstract

A method for manufacturing a sheet (1A) for extraction bags in which tags (3) bonded to hanging threads (4) are arranged at predetermined intervals in the longitudinal direction of a water-filterable sheet (2) comprises (1) the step of forming intermittent patterns of the tags (3) and the hanging threads (4), in each of which the hanging thread (4) is fixed to the tag (3), on a rotary support body (10), and (2) the step of bonding the tags (3) and the hanging treads (4) formed in the intermittent patterns to the water-filterable sheet (2). There are thus provided a method and a device for manufacturing a sheet for extraction bags such that there is no thread material in portions sealed when individual extraction bags are formed from the sheet for extraction bags and manufacturing at high production speed is possible.

Description

Method for producing extraction bag sheet

The present invention relates to an extraction bag sheet manufacturing method and manufacturing apparatus used for manufacturing extraction bags such as tea bags and dashi extraction bags.

As a tea bag for tea, green tea, herbs, etc., as a bag for extracting dried stock such as dried and dried bonito, a water-permeable filterable sheet such as non-woven fabric and strawberry is formed into a flat bag, tetrahedron bag, etc. A material in which an extraction material such as tea leaves is filled inside and a hanging thread with a tag is attached to the outer surface is used (Patent Document 1).

The extraction bag sheet used for manufacturing the extraction bag has various modes depending on the shape of the extraction bag to be manufactured, the length of the hanging thread, the shape of the tag, and the like. Conventionally, one end of the hanging thread is bonded. The tags are arranged in a line at predetermined intervals in the longitudinal direction of the belt-shaped water-permeable filterable sheet. As a method for manufacturing such a sheet for an extraction bag, a tag is attached to a long thread material at a predetermined interval, and the long thread material with the tag is pulled out in the width direction of the long water-permeable filterable sheet. There is a method in which a tag and a thread material are respectively bonded to a water-permeable filterable sheet, and the thread material is cut from the subsequent thread material (Patent Document 2).

However, according to this method, the tag and the hanging thread cannot be adhered while the water-permeable filterable sheet is continuously conveyed, and the production speed cannot be sufficiently increased.

On the other hand, tags are arranged at a predetermined interval on the circumferential surface of the rotation carrier, and a long thread material is stretched in a predetermined pattern on the tag to bond each tag to the thread material. A method is known in which a water-permeable filterable sheet is supplied and a tag and a thread material are bonded to the water-filterable sheet on a rotating carrier. Thus, as in the extraction bag sheet 1X shown in FIG. 8, the tags 3 are arranged at predetermined intervals in the longitudinal direction of the long water-permeable filterable sheet 2, and the long yarn materials 4b are arranged in a predetermined pattern. Thus, an extraction bag sheet bonded to each tag 3 can be obtained (Patent Document 3 and Patent Document 4). In addition, the area | region divided with the broken line corresponds to the area | region for one extraction bag in the figure.

According to this method, since the extraction bag sheet 1X can be manufactured while continuously transporting the water-permeable filterable sheet 2, the production speed of the extraction bag sheet is increased as compared with the method of Patent Document 2. be able to.

However, since the thread material 4b is continuous on the extraction bag sheet 1X, the thread material 4b is present at the seal portion (dashed line portion) when making individual extraction bags from the extraction bag sheet 1X. There is a risk that the sealing device is burdened and the sealing device may bite the thread material 4b.

Japanese Unexamined Patent Publication No. 7-61465 Japanese Patent Laid-Open No. 9-24907 Special Table 2001-519729 Special Table 2006-510550

The present invention provides a manufacturing method and a manufacturing apparatus for an extraction bag sheet that can be manufactured at a high production rate without a thread material at a seal portion when individual extraction bags are manufactured from the extraction bag sheet. For the purpose.

The present inventor arranges tags at predetermined intervals on a rotating carrier and manufactures an extraction bag sheet using a long yarn material. When the cut string is cut into the length of the hanging thread and the intermittent pattern of the tag and the hanging thread is formed on the rotating carrier, the sheet for the extraction bag can be manufactured at a high production rate, and the sheet for the extraction bag From the above, it has been found that the thread material can be prevented from being hindered in the sealing process when making individual extraction bags.

That is, the present invention is a method for producing a sheet for an extraction bag in which tags bonded to a hanging thread are arranged at a predetermined interval in the longitudinal direction of the water-permeable filterable sheet. On the body, the hanging thread is fixed to the tag, and the step of forming the intermittent pattern of the tag and the hanging thread (2) The tag formed in the intermittent pattern and the hanging thread Provided is a method for producing a sheet for an extraction bag having a bonding step.

Further, the present invention is an apparatus for carrying out the above-described method for producing an extraction bag sheet, wherein the tags bonded to the hanging thread are arranged at predetermined intervals in the longitudinal direction of the water-permeable filterable sheet. Manufacturing equipment,
A means for holding the tag at a predetermined interval, a rotating carrier having means for forming an intermittent pattern of the tag and the hanging thread, the hanging thread being fixed on the tag, and a tag formed in the intermittent pattern And a manufacturing apparatus provided with an adhesive means for adhering the hanging thread to the water-filterable sheet.

According to the present invention, an intermittent pattern of a hanging thread obtained by cutting a long thread material into a hanging thread having a length corresponding to each extraction bag is stopped on the rotating carrier. The continuous pattern can be formed continuously without being stopped, and the intermittent pattern can be continuously adhered to the water-filterable sheet without stopping the conveyance of the water-filterable sheet. Therefore, the extraction bag sheet can be manufactured at a high production rate.

In addition, the extraction bag sheet obtained by the present invention has an intermittent pattern of the hanging thread, so that the hanging thread does not exist in the seal portion when each extraction bag is made from the extraction bag sheet. Can be made into bags. Accordingly, it is possible to prevent the sealing process from being hindered by the hanging thread.

It is the whole schematic diagram of the manufacturing apparatus of the sheet | seat for extraction bags. It is a schematic perspective view of a rotation carrier. It is explanatory drawing of the formation mechanism of the pattern of the hanging thread in a rotation carrier. It is a schematic perspective view of the ultrasonic welding apparatus vicinity downstream of a rotation support body. It is a perspective view of the sheet | seat winding roll for extraction bags. It is the whole schematic diagram of the manufacturing apparatus of the sheet | seat for extraction bags. It is a perspective view of the sheet | seat winding roll for extraction bags. It is a top view of the conventional sheet | seat for extraction bags manufactured using a rotation carrier.

Explanation of symbols

1A, 1B Extraction bag sheet 1X Conventional extraction bag sheet 2 Water-permeable filterable sheet 3 Tag 3b Tag tape 4 Hanging thread

4b Thread material

10, 10a, 10b Rotating carrier 11 Tag holding plate 12 Pin 13 Pusher ( (Drawing means)
14 Groove 15 Rotating Blade 16 Suction Unit 17 Suction Unit 21 Tag Winding Roll 22 Yarn Material Winding Roll 23 Water-permeable Filterable Sheet Winding Roll 24 Extraction Bag Sheet Winding Roll 25a, 25b, 25c Tension Adjuster 26 Thread Folding Roller 30 Tag cut supply device 31 Guillotine blade 40 1st ultrasonic welding device 41 2nd ultrasonic welding device 42 3rd ultrasonic welding device 42b cradle 43 4th ultrasonic welding device 43b cradle 100A, 100B Extraction bag sheet manufacturing equipment P1, P2, P3, P4 Adhesion site Q Cutting position of thread material

Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol represents the same or equivalent component.

FIG. 1 is an overall schematic view of an embodiment of a manufacturing apparatus for carrying out the manufacturing method of the present invention, FIG. 2 is a schematic perspective view of the rotating carrier, and FIG. 3 is a hanging thread pattern on the rotating carrier. FIG. 4 is a schematic perspective view of the vicinity of the ultrasonic welding apparatus downstream of the rotary carrier.

As shown in FIG. 1, the manufacturing apparatus 100 </ b> A includes a rotation carrier 10, a tag winding roll 21 around which a long tag tape 3 b supplied to the rotation carrier 10 is wound, and a length supplied to the rotation carrier 10. A thread material take-up roll 22 wound around a long thread material 4b, a water-permeable filter sheet take-up roll 23 around which a long water-permeable filter sheet 2 supplied below the rotary carrier 10 is wound, An extraction bag sheet take-up roll for winding the extraction bag sheet 1A bonded to the water-filterable sheet 2 with the hanging thread 4 and the tag 3 separated from the thread material 4b of the length required for one extraction bag. 24.

Here, the material of the tag tape 3b is appropriately selected according to the bonding method between the tag 3 and the hanging thread 4 or the tag 3 and the water-permeable filter sheet 2. For example, when these adhesions are ultrasonic welding, a tape made of a resin sheet made of a thermoplastic resin such as polyethylene, polypropylene, polylactic acid resin or succinic acid resin, or paper laminated with these resins, etc. It is preferable to use a shaped member. If necessary, the tag tape 3b may be provided with notches or notches for hooking it on a cup or the like at predetermined intervals.

The material of the thread material 4b is preferably selected as appropriate according to the bonding method in the same manner as the tag tape 3b. When ultrasonic bonding is used for the thread material 4b, polypropylene, polyethylene, polylactic acid resin is used. It is preferable to use a thread material made of thermoplastic synthetic fiber such as succinic acid resin.

Examples of the water-permeable filter sheet 2 include biodegradable fibers made of polylactic acid-based resins and succinic acid-based resins, synthetic fibers such as polyester, nylon, polyethylene, and polypropylene, semi-synthetic fibers such as rayon, Kozo, and Mitsumata Fiber layers such as woven fabrics or non-woven fabrics made of natural fibers such as natural fibers, etc., mixed paper made of manila hemp, wood pulp, polypropylene fibers, etc., papers such as tea bag base paper, films with many pores, etc. Or what consists of a film and laminated | stacked the heat-seal layer as needed can be used.

Chitin chitosan fiber or chitin chitosan cellulose that absorbs the odor from the woven fabric, non-woven fabric, mixed paper, paper, etc., from the point of preventing the odor of tap water from being felt in the extract. A composite of fibers is preferred. As the chitin chitosan fiber or chitin chitosan cellulose fiber, for example, the fibers described in JP-A-9-241928 can be used.

Further, as the water-permeable filter sheet 2, the first layer is a regular polyester, the second layer is a sheet material having a two-layer structure made of a mixed paper of a regular polyester and a low-melting polyester, a polyester spunbond nonwoven fabric and a polyester meltblown nonwoven fabric. A laminated sheet material of polyester spunbonded nonwoven fabric is preferable in terms of taste, fragrance, flavor, and extraction time.

The thickness of the water-permeable filterable sheet 2 is preferably 40 to 300 μm, and the basis weight is preferably 10 to 50 g / m ² .

A tag winding roll 21, a thread material winding roll 22, a water-permeable filterable sheet winding roll 23, and a transport system from the rotary carrier 10 to a tag tape 3b, a thread material 4b, and a water-permeable filterable sheet, respectively. Tension adjusting devices 25a, 25b, and 25c for adjusting the tension of 2 are provided.

The rotary carrier 10 rotates at a constant speed in the direction of the arrow, and has tag holding plates 11 at predetermined intervals on its peripheral surface. Each tag holding plate 11 is provided with a suction holding mechanism for the tag 3. Further, as a means for stretching the thread material 4b on the circumferential surface of the rotation carrier 10, the rotation carrier 10 has a pin 12 protruding in the vicinity of each tag holding plate 11, and in the vicinity of the circumferential surface, the rotation carrier 10 A yarn folding roller 26 is provided as a base point of the yarn material 4b stretched on the peripheral surface of the body 10.

A tag cut supply device 30 is provided in the vicinity of the peripheral surface of the rotary carrier 10. The tag cut supply device 30 cuts the tag tape 3b into the tags 3 for one extraction bag with the guillotine blade 31, and supplies the tags 3 to the peripheral surface of the rotary carrier 10 at predetermined intervals.

In the apparatus 100A of the present embodiment shown in FIG. 1, the yarn folding roller 26 is arranged upstream of the tag cut supply device 30, but the tag cut supply device 30 is arranged upstream of the yarn folding roller 26. You may arrange.

In the rotation carrier 10, between the adjacent tag holding plates 11, the thread material 4b stretched around the circumferential surface of the rotation carrier 10 is changed according to the rotation angle of the rotation carrier 10, as shown in FIG. A rectangular plate-like pusher 13 is provided as a thread material rotating means for guiding between at least one of the adjacent tags 3 so as to pass between the tags 3. The pusher 13 has a common drive source with the rotary carrier 10, and moves in and out in the substantially axial direction of the rotary carrier 10 according to the rotation angle of the rotary carrier 10. A groove 14 for guiding the thread material 4b is formed on the side surface of the pusher 13.

As described above, the pusher 13 serves as a means for fixing the thread material 4b and the tag 3 in a state where the thread material 4b stretched on the peripheral surface of the rotation carrier 10 is guided between the adjacent tags 3. A first ultrasonic welding device 40 that strongly bonds the thread material 4b and the tag 3 to each other is provided. A symbol P1 in FIG. 3 indicates an adhesion site by the first ultrasonic welding apparatus 40. The first ultrasonic welding apparatus 40 is moved together with the adherend as shown by an arrow a in FIG. 2 by ultrasonic cam welding, and the rotation of the rotary carrier 10 and the movement of the conveyance system of the water-permeable filter sheet 2 are performed. Is trying not to stop. Further, the tag holding plate 11 is used as a cradle for ultrasonic welding of the first ultrasonic welding apparatus 40.

In addition, as a fixing means for the thread material 4b and the tag 3, a heat welding device may be provided instead of the ultrasonic welding device. Further, pressing means for mechanically pressing and fixing the thread material 4b to the tag 3 may be provided. In that case, after releasing the pressing by the pressing means, the yarn is separately provided outside the peripheral surface of the rotary carrier 10. Means for adhering the material 4b and the tag 3 are provided.

A rotary blade 15 is provided downstream of the first ultrasonic welding device 40 as means for forming an intermittent pattern of the tag 3 and the hanging thread 4 by cutting the thread material 4b between the adjacent tags 3. It has been. The cutting position of the thread material 4b by the rotary blade 15 is preferably set to a position biased to one of the adjacent tags 3 as indicated by a symbol Q in FIG.

Between the cutting position Q and immediately below the rotary carrier 10, the thread 4b (that is, the hanging thread 4) that has been cut is stretched substantially linearly and arranged in a predetermined direction. As shown in FIG. 3, the pusher 13 that protrudes in the axial direction of the rotary carrier 10 and the suction that sucks the hanging thread 4 in the axial direction (arrow m direction) of the rotary carrier 10 even after the thread material 4b is cut. Means 16 are provided. Note that air blowing means for blowing air in the direction of the arrow m may be provided instead of the suction means.

The manufacturing apparatus 100 </ b> A of this embodiment has a transport system that transports the water-permeable filterable sheet 2 directly below the rotation carrier 10, and sucks the tag 3 on the tag holding plate 11 at the bottom of the rotation carrier 10. The tag 3 and the hanging thread 4 that are cut and formed in an intermittent pattern are transferred from the rotary carrier 10 to the water flowable sheet 2.

Further, a second ultrasonic welding device 41 for temporarily adhering the water-permeable filterable sheet 2 and the tag 3 conveyed to the rotary carrier 10 at a position P2 is provided so as to be easily peeled off. As shown in FIG. 4, the end portion of the hanging thread 4 is strongly passed at the position P3 and the end of the hanging thread 4 on the conveyance path of the water-permeable filter sheet 2 away from the rotary carrier 10 further downstream. A third ultrasonic welding device 42 to be bonded and a fourth ultrasonic welding device 43 to temporarily bond the central portion of the hanging thread 4 to the water-permeable filter sheet 2 at the position P4 are provided.

Among these, the second ultrasonic welding device 41 uses the tag holding plate 11 on the surface of the rotary carrier 10 as a receiving base at the time of ultrasonic welding similarly to the first ultrasonic welding device 40 described above. The sonic welding device 42 and the fourth ultrasonic welding device 43 are each provided with a receiving table 42b and a receiving table 43b. Further, the second ultrasonic welding device 41 is moved by the cam mechanism as indicated by an arrow b in FIG. 2 in accordance with the rotational speed of the rotary carrier 10 during ultrasonic bonding, and the third ultrasonic welding device 42 The fourth ultrasonic welding device 43 moves in accordance with the conveyance speed of the water filterable sheet 2 as indicated by arrows c and d in FIG. The movement of the conveyance system of the adhesive sheet 2 is prevented from stopping.

Further, a suction means 17 is provided for sucking the hanging thread 4 in the width direction of the water-permeable filter sheet 2 as indicated by an arrow n from directly below the rotary carrier 10 to the installation position of the fourth ultrasonic welding device 43. ing. Thereby, the hanging thread 4 is aligned in a state of extending in the width direction, and is adhered to the water-permeable filter sheet 2.

In the present invention, a heat welding device may be provided in place of the

ultrasonic welding devices

41, 42, 43 as the bonding means for bonding the tag 3 and the hanging thread 4 to the water filterable sheet 2.

In this manufacturing apparatus 100A, the extraction bag sheet 1A includes (1) a step of forming an intermittent pattern of the tag 3 and the hanging thread 4 on the rotating carrier 10, and (2) a tag 3 formed in the intermittent pattern. And the step of adhering the hanging thread 4 to the water-permeable filterable sheet 2 are manufactured as follows.

That is, in the intermittent pattern forming step (1), first, the yarn material 4 b is pulled out from the yarn material take-up roll 22, and the yarn material 4 b is supplied to the rotary carrier 10 via the yarn folding roller 26. The thread material 4 b is caught on the pin 12 protruding from the tag holding surface of the tag holding plate 11, and is stretched in the circumferential direction of the rotation carrier 10 by the rotation of the rotation carrier 10 in the arrow direction.

Further, the tag tape 3b is pulled out from the tag winding roll 21, and the tag 3 is supplied to the tag holding plate 11 of the rotation carrier 10 at a predetermined interval by the tag cut supply device 30 as shown in FIG. The tag holding plate 11 of the rotary carrier 10 sucks and holds the tag 3 supplied from the tag cut supply device 30 immediately on the tag holding plate 11.

Next, pusher 13 is pushed out between adjacent tags 3. As a result, the thread material 4 b that hangs on the groove 14 of the pusher 13 passes through at least one of the adjacent tags 3 and becomes a pattern guided between the tags 3. Then, as shown in FIG. 3, when the pusher 13 is pushed out so that the length of the thread material 4b between the adjacent tags 3 becomes the length of the hanging thread 4 for one extraction bag, the first With the ultrasonic welding device 40, the tag 3 and the thread material 4b are bonded at the bonding site P1, and the rotary blade 15 cuts the thread material 4b at one of the adjacent tags 3 at a position Q. However, the cut thread material 4b (hanging thread 4) is continuously pushed out in the same direction. Further, the thread material 4b cut at this time is sucked in the axial direction (m direction) of the rotary carrier 10, and is stretched and aligned in the same direction.

In this way, an intermittent pattern of the tag 3 and the hanging thread 4 is formed on the rotary carrier 10.

After the intermittent pattern of the tag 3 and the hanging thread 4 is formed on the rotating carrier 10, the water filterable sheet 2 of the tag 3 and the hanging thread 4 formed in the intermittent pattern of (2). In the bonding process, the water-permeable filterable sheet 2 is supplied onto the rotation carrier 10 by a known method as described in Patent Document 3 or Patent Document 4, and the tag 3 is suspended from the rotation carrier 10. The yarn 4 may be bonded to the water-filterable sheet 2, but in that case, an adhesive device such as an ultrasonic welding device must be concentrated on the rotary carrier 10. Design freedom is limited.

Therefore, the process (2) is performed by (2a) transferring the intermittent pattern of the tag 3 and the hanging thread 4 formed on the rotating carrier 10 to the water filterable sheet 2, and (2b) after the process (2a). It is preferable to carry out from the step of adhering the tag 3 and the hanging thread 4 to the water-permeable filterable sheet 2 respectively. In particular, the step (2b) is an intermittent pattern of the tag 3 and the hanging thread 4 through the water-filterable sheet. It is preferable to adhere the tag 3 to the water-filterable sheet 2 when moving to 2, and then bond the hanging thread 4 and the water-filterable sheet 2 to each other. As a result, the degree of freedom of the bonding apparatus when bonding the tag 3 and the hanging thread 4 to the water-filterable sheet 2 is increased, and maintenance of the extraction bag sheet manufacturing apparatus 100A as a whole is facilitated.

The manufacturing apparatus 100A of FIG. 1 performs the process of adhering the tag 3 and the hanging thread 4 to the water filterable sheet 2 by the above-described steps (2a) and (2b). At the bottom of the rotary carrier 10 where the intermittent pattern is formed, the rotary carrier 10 cuts off the suction of the tag 3, and the tag 3 and the hanging thread 4 are conveyed from the rotary carrier 10 directly below it. Transfer to the water-permeable filterable sheet 2.

Also, at the lowermost part of the rotary carrier 10, the tag 3 and the water-permeable filter sheet 2 are temporarily bonded by the second ultrasonic welding device 41 at the bonding site P2.

Thereafter, the hanging thread 4 is sucked in the direction of the arrow n to align the threads, the tag 3 and the hanging thread 4 are strongly bonded at the bonding site P3 by the third ultrasonic welding device 42, and the fourth super The hanging thread 4 and the water-permeable filterable sheet 2 are temporarily bonded by the sonic welding device 43 at the bonding site P4.

In this way, the extraction bag sheet 1A in which the tag 3 adhered to the hanging thread 4 is arranged on the water filterable sheet 2 in the longitudinal direction of the water filterable sheet 2 at a predetermined interval is obtained.

The obtained extraction bag sheet 1A is wound around an extraction bag sheet winding roll 24 as shown in FIG. The extraction bag sheet 1A wound around the extraction bag sheet winding roll 24 can be used in a conventional bag making apparatus for manufacturing a rectangular or pyramid type extraction bag, and in particular, from the extraction bag sheet 1A. Since the hanging thread 4 does not exist at the seal portion (broken line) when manufacturing each extraction bag, it is possible to smoothly perform the seal at the time of bag making.

The present invention includes various modes for forming an intermittent pattern of a tag and a hanging thread on a rotating carrier.

For example, like the extraction bag sheet manufacturing apparatus 100B shown in FIG. 6, the first rotation carrier 10a is used in the same manner as the apparatus shown in FIG. An intermittent pattern of the hanging thread 4 is formed. However, the pitch of each pattern is doubled. Subsequently, the intermittent pattern of the tag 3 and the hanging thread 4 is formed on the water-permeable filterable sheet 2 by using the second rotation carrier 10b.

In this case, as shown in the extraction bag sheet 1B in FIG. 7, the pattern of the tag 3 and the hanging thread 4 by the first rotation carrier 10a, and the tag 3 and the hanging thread 4 by the second rotation carrier 10b. So that the total pitch of the pattern is aligned.

Moreover, in order not to make the roll which wound the sheet | seat for extraction bags into a cone shape, and to improve the handleability of a roll, the arrangement | sequence of the tag 3 in the water-permeable filterable sheet 2 is made into the one side of the water-permeable filterable sheet 2. It is preferable to form on both side edges instead of the edges. Therefore, as shown in FIG. 7, the pattern of the tag 3 and the hanging thread 4 by the first rotation carrier 10a and the pattern of the tag 3 and the hanging thread 4 by the second rotation carrier 10b are reversed. It is preferable.

Further, in the manufacturing apparatus 100A described above, the thread material rotating means for guiding the thread material 4b between the adjacent tags 3 and the hanging thread for extending the thread material 4b cut between the adjacent tags 3 substantially linearly. As the aligning means, instead of the pusher 13, a means for hooking the thread material 4 b stretched in the circumferential direction of the rotation carrier 10 from the side opposite to the pin 12 and pulling it out between the adjacent tags 3 may be provided.

In the step of passing the tag 3 and the hanging thread 4 formed in an intermittent pattern on the rotary carrier 10 to the water filterable sheet 2, the suction of the rotary carrier 10 by sucking from the back surface of the water filterable sheet 2 is achieved. The water-permeable filterable sheet 2 may be transported to a part other than directly below, and the tag 3 and the hanging thread 4 may be transferred to the water-filterable sheet 2.

After moving the tag 3 and the hanging thread 4 from the rotary carrier 10 to the water-permeable filterable sheet 2, in order to align the threads, air blowing means for blowing air in the direction of arrow n is provided instead of the suction means 17. Also good.

The present invention is useful for manufacturing various extraction bag sheets provided with a hanging thread with a tag.

Claims

A method for producing a sheet for an extraction bag in which tags attached to a hanging thread are arranged at a predetermined interval in the longitudinal direction of a water-permeable filterable sheet, and in the next step (1) on the rotating carrier, The step of forming an intermittent pattern of the tag and the hanging thread, in which the hanging thread is fixed (2) The extraction comprising the step of adhering the tag and the hanging thread formed in the intermittent pattern to the water filterable sheet A method for manufacturing a bag sheet.
The step of forming the intermittent pattern in step (1) is the next step
(1a) The tags are arranged on the peripheral surface of the rotation carrier at predetermined intervals, and a long thread material for the hanging thread is passed over at least one of the adjacent tags, and the pattern is guided between the tags. Placement process
(1b) The process of fixing the thread material and the tag
(1c) The manufacturing method according to claim 1, further comprising a step of cutting a thread material between adjacent tags.
In the process of forming an intermittent pattern in step (1), the next step is after step (1c).
(1d) The manufacturing method according to claim 2, further comprising a step of arranging the cut yarn material in a predetermined direction.
Step (2) is the next step
(2a) The step of transferring the tag and the hanging thread formed in the intermittent pattern from the rotating carrier to the water-permeable filterable sheet
(2b) The production method according to any one of claims 1 to 3, further comprising a step of bonding the tag and the hanging thread to the water-permeable filter sheet after the step (2a).
The manufacturing method according to claim 4, wherein, in the step (2a), the tag and the hanging thread formed in the intermittent pattern are transferred to the water-permeable filterable sheet directly under the rotating carrier.
The tag bonded to the hanging thread is an apparatus for producing a sheet for an extraction bag in which the water-permeable filterable sheet is arranged at a predetermined interval in the longitudinal direction,
A means for holding the tag at a predetermined interval, a rotating carrier having means for forming an intermittent pattern of the tag and the hanging thread, the hanging thread being fixed on the tag, and a tag formed in the intermittent pattern And a manufacturing apparatus provided with an adhesive means for adhering the hanging thread to the water filterable sheet.
The rotating carrier is
Means for stretching a long thread material for the hanging thread around the circumferential surface of the rotating carrier;
Means for arranging and holding the tags at predetermined intervals on the circumferential surface of the rotary carrier;
Thread material rotating means for guiding the thread material stretched on the peripheral surface of the rotating carrier between the adjacent tags so as to pass over at least one of the adjacent tags;
Means for fixing the thread material and the tag in a state in which the thread material is drawn between the adjacent tags; means for forming an intermittent pattern of the tag and the hanging thread by cutting the thread material between the adjacent tags;
The manufacturing apparatus according to claim 6.
The manufacturing apparatus according to claim 6 or 7, wherein the rotary carrier has a hanging thread alignment means for adjusting a thread material cut between adjacent tags in a predetermined direction.
It has a conveying system that conveys a water-permeable filterable sheet directly under the rotating carrier, and the tags and hanging threads formed in an intermittent pattern are transferred from the rotating carrier to the water-permeable filterable sheet directly under the rotating carrier. The manufacturing apparatus according to any one of claims 6 to 8.