JP2011051958A - Method for manufacturing film pack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a film pack that can manufacture a film pack, a bag-like container made of a film that encapsulates contents, using an edible film and also can manufacture even a film pack of such a small size as to be orally taken in. <P>SOLUTION: The method for manufacturing a film pack includes a molding step for supplying an edible first film 10 onto a mold 30 having recessed parts 31 equipped with penetrating holes 32, sticking the first film to the mold by sucking air through the holes while pressing the first film to at least the peripheral parts of the recessed parts with a pressing block 35, and thus forming concave container parts 15 made of the first film along the recessed parts; a supplying step for supplying the contents into the container parts; and a pressing step for covering the first film with an edible second film and hot-pressing the second film to the first film except the container parts. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method of manufacturing a film pack in which contents such as drugs are enclosed in a container formed in a bag shape with an edible film.

  As a preparation in which drugs for oral administration are packaged in quantities to be taken at once, powders (powder), granules, etc. have been used in bags made of plastic film, glassine paper, aluminum sheets, etc. A sachet encapsulating a drug is widely used. However, in the case of such a packaged medicine, when the medicine is put into the mouth, the powder or fine granules may be inhaled or coughed. Also, when opening the bag, it is easy to spill or scatter the medicine, and the whole amount may not be taken. Furthermore, there is a problem that drugs having a strong bitterness or smell are difficult to take if put directly into the mouth. In addition, there is a problem that the packaging bag becomes garbage after taking.

  On the other hand, it has also been traditionally taken after wrapping a powder (powder) or granules in a thin sheet of wafer, which has the advantage that it is difficult to peel off and taste and smell. . However, the work of wrapping a medicine with an oblate every time it is taken is complicated, and the medicine may be spilled or scattered during the work. In addition, there is an error in measuring the drug with a spoon or the like, and it may not be possible to take the necessary amount as a single dose. In addition, the package itself in which the wafer is folded is bulky, and the mouth feels uncomfortable and difficult to swallow.

  Therefore, as shown in FIG. 13, the present applicant forms a bag-like container by overlapping the edible film 101 and forming a seal portion 102 by crimping along the outer peripheral edge. A bag-shaped film preparation (formulation package) 100 in which a drug 105 is enclosed in a storage space 104 is proposed (see Patent Document 1). According to this, since a predetermined amount of medicine is enclosed in a bag-like container formed of the edible film 101 and the medicine can be taken together with the container, it is ensured that a single amount of medicine is not spilled. Can be taken.

  Moreover, even if the drug is a powder or fine granules, the risk of falling or coughing is reduced, and the drug can be taken without strongly feeling the taste and smell of the drug. In addition, since the edible film container can be seasoned or scented, the taste and odor of the drug can be masked to make it easier to take. Moreover, since the bag-shaped container formed by press-bonding a thin edible film along the outer peripheral edge is not as bulky as a folded wafer, there is little discomfort in the oral cavity. Further, unlike the case of wrapping the medicine in an oblate prior to taking it, it is possible to take the medicine immediately when it is desired to take it without any hassle, so that it can be taken easily and is convenient to carry.

  At first glance, the bag-like film preparation 100 having such a structure is manufactured in the same manner as a manufacturing method using a conventional bag making apparatus that performs three-side seal packaging, four-side seal packaging, etc. using a plastic film such as polyethylene or polypropylene. It seems that it can be manufactured by the method. However, edible films have lower strength against tensile force than plastic films, are difficult to retain their shape after being forced to deform, and are inferior in heat-sealing properties. Have a lot. In addition, since it is difficult to fill the contents into a bag-like container having a small internal volume because it is ingested orally together with the container, the conventional manufacturing method is used as it is. It is extremely difficult to produce a film formulation.

  Therefore, in view of the above situation, the present invention can produce a film pack in which contents are enclosed in a container formed in a bag shape with a film using an edible film, and is small enough to be taken orally. It is an object of the present invention to provide a film pack manufacturing method that can be manufactured even in the case of manufacturing.

  In order to solve the above-mentioned problems, the film pack manufacturing method according to the present invention provides: “Supply an edible first film on a mold having a recess provided with a through-hole, and at least by a pressing body. While pressing the first film against the peripheral edge of the recess, the first film is adsorbed to the mold by sucking air through the hole, and the concave accommodating portion along the recess is the first film. A forming process for forming the contents, a contents supplying process for supplying contents into the housing portion, the first film is covered with an edible second film, and the first film excluding the housing portion is covered with the second film And a pressure bonding step of thermocompression bonding with the film ”.

  The edible “first film” and “second film” are obtained by casting a solution or suspension containing an edible film forming agent on a base film fixed on a smooth base surface. The formed solution or suspension can be dried to form a film. Here, as edible film forming agents, pullulan, gelatin, pectin, sodium alginate, carrageenan, xanthan gum, guar gum, hypromellose, hydroxypropylcellulose, water-soluble hydroxyethylcellulose, methylcellulose, carboxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, polyethylene Glycols, modified starches and the like can be used. The “first film” and the “second film” may be films formed of the same film forming agent or films formed of different types of film forming agents.

  Here, in the present invention, the “film” refers to a thin piece having a thickness of 1 μm to 500 μm. The thicknesses of the “first film” and the “second film” may be the same or different.

  Examples of the “contents” include powders (powder), granules, pills, tablets, oils, pasty preparations, and drugs obtained by mixing a plurality of them. It is not particularly limited as long as it is used, and it may be a so-called western medicine or a herbal medicine or a herbal medicine combined with herbal medicine. Furthermore, the “contents” of the present invention is not limited to pharmaceutical products, and may be foods and drinks such as food with nutritional function, food for specified health use, powdered soup and powdered juice.

  The number of “holes” penetrating may be singular or plural. For example, if a large number of dispersed “holes” are provided on the bottom surface of the molding die or the bottom surface and side surfaces of the molding die, the first film is formed on the molding die. It is desirable to be easily adsorbed uniformly.

  As a method of “thermocompression bonding”, a method of pressing a film with a heated metal plate or the like (so-called hot plate type), a method of causing a heater to generate heat by instantaneously passing a large current while pressing the heater against the film ( Any of a so-called impulse method and a method of radiating ultrasonic waves from a horn while pressurizing the film to heat the film internally (so-called ultrasonic method) can be used.

  As the “pressing body that presses the first film against at least the peripheral edge of the recess,” a hard member having elasticity such as foamed resin can be suitably used. Due to the elasticity, the first film can be pressed while allowing the movement of the first film to form a shape along the recess to some extent. Here, the pressing body is sufficient as long as it presses the first film with “at least the peripheral edge of the concave portion”, and may also press the portion other than the peripheral edge. For example, if the shape of the pressing body is an annular shape that matches the shape of the peripheral edge of the recess, only the peripheral edge of the recess can be pressed, and if the surface used for pressing in the pressing body is a plane with a large area The entire upper surface excluding the concave portion of the mold can be pressed. Moreover, if it is a press body provided with the convex part corresponding to a recessed part, while being able to press the peripheral part of a recessed part, the shape of the concave accommodating part which should be formed in a 1st film can also be adjusted with a press body.

  If a conventional plastic film bag making technique in which two films are overlapped and sealed in three or four directions is applied to an edible film pack, there is almost no gap between the superimposed films. Therefore, unless the gap is widened, the contents cannot be filled, and the manufacturing process becomes complicated. In particular, when manufacturing a small film pack that can be ingested orally, it is very difficult to fill the contents between overlapping small-sized films. On the other hand, in the present invention, the first film adsorbed on the mold by the intake air through the hole is deformed so as to be along the mold, so that the concave accommodating portion along the shape of the concave portion of the mold is obtained. Formed on the first film. Thereby, since a content can be easily supplied so that a content may be mounted in a concave accommodating part, even if it is a small film pack, it can be manufactured easily. The present invention has an advantage that even a small film pack can be manufactured. Of course, even a large film pack can be manufactured without problems.

  In the present invention, in the process of deforming the first film along the concave portion of the mold, wrinkles are likely to occur in the first film at a portion along the peripheral portion of the concave portion, that is, at the peripheral portion of the housing portion. And when many wrinkles generate | occur | produce in a 1st film at a formation process, in the subsequent press bonding process, the adhesiveness of the 1st film and 2nd film in the peripheral part of an accommodating part will fall, and thermocompression bonding shall be inadequate. There is a high risk of becoming. On the other hand, in the present invention, since the first film is adsorbed to the concave portion while the first film is pressed against the peripheral portion of the concave portion with the pressing body, the first film is deformed, so that the wrinkles at the peripheral portion of the accommodating portion are deformed. Generation can be reduced. Note that if the pressing body is heated to a low temperature so that the first film does not melt, the first film is heated and softened at the same time as being pressed by the pressing body. Wrinkles are less likely to occur, which is preferable.

  The method for producing a film pack according to the present invention is as follows: “The pressure-bonding step is a process in which the thermocompression bonding of the first film and the second film is performed by rolling a cylindrical roller on the second film. And the second film is gradually covered with the first film in the traveling direction of the roller as the roller rolls.

  In this invention of the said structure, a 1st film and a 2nd film are pressed by the linear form which a roller contact | abuts with a 2nd film by rolling a cylindrical roller on a 2nd film. Then, the set of linear pressing points moves in the traveling direction of the roller as the roller rolls. In addition, in this invention, a 2nd film is gradually covered on a 1st film in the advancing direction of a roller according to rolling of a roller.

  If the second film is pressed face-to-face with respect to the first film, the air between the two films is pressed against the second film, and the contents stored in the storage portion rise by the pressure of the air. There is a risk of splashing. In particular, when the contents are in the form of powder or fine granules, the risk is high.

  In contrast, in the present invention, the set of pressing points of the first film and the second film by the roller is a straight line, and as the straight line moves due to the rolling of the roller, the second film gradually becomes the first film. Be put on. That is, in this invention, a 1st film and a 2nd film are crimped | bonded, releasing air in the advancing direction of a roller. Thereby, a 1st film and a 2nd film can be crimped | bonded, without scattering the contents.

  In addition, when externally heating the first film and the second film in the crimping step, both the rollers are heated and the members supporting the first film are heated. It may be a configuration.

  The method for producing a film pack according to the present invention may be configured such that “the crimping step is performed in a plurality of times” in the above configuration.

  As described above, an edible film is inferior in heat sealability compared to a plastic film, and the temperature at which welding is possible is higher than that of a plastic film. For this reason, when the first film and the second film are thermocompression bonded at a high temperature capable of being welded, the film may be easily wrinkled due to thermal shrinkage depending on the material and thickness of the film. In that case, by adopting this configuration and dividing the crimping process into a plurality of times, first, the first film suppresses the generation of wrinkles at a low temperature (for example, 50 to 120 ° C.) that does not cause the film to shrink greatly. And the second film is temporarily sealed, and the subsequent press-bonding step can be performed at a high temperature (for example, 180 to 250 ° C.) at which the film can be welded. Thereby, a 1st film and a 2nd film can fully be thermocompression bonded, suppressing generation | occurrence | production of wrinkles. Here, the term “temporary seal” refers to a state in which the first film and the second film are partially welded along the outer peripheral edge of the housing portion, or the first film and the second film are all in the housing portion. Although it adhere | attaches along an outer periphery, it is used as what shows the state adhere | attached with the weak adhesive force which does not lead to perfect welding.

  Moreover, if the time required for thermocompression bonding is increased, sufficient thermocompression bonding can be performed more reliably. In this invention, the total time of a crimping | compression-bonding process can be lengthened by performing a crimping | compression-bonding process in multiple times. Here, as a method of performing the crimping process only once, it is possible to conceive a method of lengthening the time required for one time. However, when the production of the film pack is performed on an automated production line, if the semi-finished product being produced is intermittently moved and each step is performed for the same time, the production line can be easily controlled. Therefore, according to the present invention, by performing the crimping process a plurality of times, even if the semi-finished product moves intermittently on the production line and each process is performed for the same time, the total time of the crimping process is increased. can do.

  In addition, by performing the crimping step a plurality of times, it is possible to variously set the heating temperature in each step according to the material, thickness, etc. of the film. For example, it is possible to set the heating temperature to be gradually higher in later steps. By setting it as such a structure, since the temperature change in a 1st film and a 2nd film can be made loose, generation | occurrence | production of a wrinkle and a deformation | transformation of a film can be suppressed and sufficient thermocompression bonding can be performed.

  The method for producing a film pack according to the present invention may be configured so that “the molding step is performed while heating the mold” in the above configuration.

  In the present invention, by forming the mold while heating, the film adsorbed on the mold is softened and easily deforms along the recess. Therefore, generation | occurrence | production of the wrinkle accompanying formation of an accommodating part in a 1st film can be suppressed more.

  In addition to the above-described structure, the film pack manufacturing method according to the present invention includes a “cooling step of cooling the first film and the second film that have been thermocompression bonded, and the first film and the step performed after the cooling step. The method further comprises a cutting step in which a second film is cut at a seal portion formed by thermocompression bonding, and the pressing step, the cooling step, and the cutting step are performed on the first die and the second film on the mold. The film is placed, the cooling step is performed by the flow of gas through the hole, and the cutting step is performed while suctioning through the hole. it can.

  By cutting the seal portion in the “cutting step”, a film pack having a predetermined size and shape can be obtained. In addition, when the first film and the second film are cut in a hot state, the film adheres to the cutting blade and is difficult to cut. In the present invention, since the cooling step is performed prior to the cutting step, there is no such fear. It has become.

  Moreover, in this invention, the shaping | molding die which mounted the 1st film at the formation process is used in order to mount a 1st film and a 2nd film also in the process performed after that. Thereby, the accommodating part formed in the concave shape is stably supported by the molding die from start to finish.

  In addition, a 1st film and a 2nd film can be cooled with the gas which distribute | circulates through a hole by using a shaping | molding die provided with the hole which penetrates also in a cooling process. For example, the first film and the second film can be efficiently cooled by supplying a cooling gas to the hole. At this time, it is desirable to set the pressure so that the first film and the second film are not lifted by the supplied gas. If the gas can be circulated, cooling can be performed more efficiently. Or a 1st film and a 2nd film can be cooled with the air which distribute | circulates naturally through a hole, without supplying gas forcibly. Also, by using the mold in the cutting process, cutting can be performed while sucking through the hole of the mold, and the film pack obtained by the cutting may be lifted following the cutting blade. Is prevented. Therefore, according to the present invention, in the molding process, the hole, which is a configuration necessary for forming the accommodating portion having the shape along the concave portion, can be effectively used in other processes, and with a simple configuration. A production line can be constructed.

  As described above, as an effect of the present invention, a film pack in which contents are enclosed in a container formed in a bag shape with a film can be manufactured using an edible film, and downsized to an extent that can be taken orally. It is possible to provide a method of manufacturing a film pack that can be manufactured even in the case of doing.

It is a schematic diagram of the 1st film feeding process and shaping | molding process in the manufacturing method of the film pack of one Embodiment of this invention. It is a perspective view of the shaping | molding die used at the shaping | molding process of FIG. It is a figure explaining a formation process. It is a schematic diagram of a content supply process. It is a schematic diagram of a primary crimping | compression-bonding process. It is a schematic diagram of a secondary press-fit process. It is a schematic diagram of a cooling process. It is a schematic diagram of a peeling process. It is a top view which shows the cutting line in (a) uncut sheet | seat and (b) uncut sheet | seat. It is explanatory drawing of a cutting process. It is a schematic diagram of a packaging process. It is the (a) longitudinal cross-sectional view of the film pack manufactured with the manufacturing method of the film pack of this embodiment, (b) The perspective view seen from the bottom face side. It is (a) top view of the bag-shaped film formulation of patent document 1, and (b) longitudinal cross-sectional view.

  Hereinafter, a film pack manufacturing method (hereinafter simply referred to as “manufacturing method”) according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10. The manufacturing method of this embodiment supplies the 1st film 10 on the shaping | molding die 30 provided with the 1st film sending process which sends out the edible 1st film 10, and the recessed part 31 in which the hole 32 penetrated was provided. The first film 10 is sucked into the molding die 30 by sucking air through the hole 32 while pressing the first film 10 against at least the peripheral edge of the recess 31 by the pressing body 35, and the concave housing along the recess 31 is accommodated. The forming step for forming the portion 15 on the first film 10, the content supplying step for supplying the content M into the accommodating portion 15, the first film 10 is covered with the edible second film 20, and the accommodating portion 15 A primary pressure-bonding step for thermocompression bonding the first film 10 to the second film 20, and a secondary pressure-bonding step for further thermocompression bonding the first film 10 excluding the housing portion 15 to the second film 20.

  Furthermore, the manufacturing method of the present embodiment includes a peeling step of peeling the base film 21 from the second film 20, and the pressure-bonded first film 10 and second film 20 as steps performed subsequent to the secondary pressure bonding step. A cooling step for cooling, and a cutting step for cutting at the seal portion 16 on the outer peripheral edge of the housing portion 15.

  Each step will be described in more detail. First, in the first film feeding step, the first film 10 is continuously pulled out while peeling the base film 11 from the roll 19 of the edible first film 10 wound in a state of being laminated on the base film 11. Then, the movement of the first film 10 continuously sent out is changed to an intermittent movement and sent to the downstream side. Here, the conversion into the intermittent movement is performed by moving the first film 10 by a predetermined length by a lifting body 60 that moves up and down between a height at which the first film 10 is pulled out from the roll 19 and a position lower than the height. Deflection can be performed by sending the length as a unit to the downstream side.

  As shown in FIGS. 2 and 3, the molding process is performed using a molding die 30 provided with a plurality of recesses 31. Here, the shape of the recess 31 is not particularly limited, but the figure shows a case where the shape of the recess 31 viewed from directly above is circular. Moreover, if the magnitude | size of the recessed part 31 shall be 10 mm-25 mm in diameter and 1 mm-5 mm in depth, for example, it is suitable for manufacture of the small film pack which can be taken orally. Note that FIG. 3 is a simplified longitudinal sectional view of the mold 30 and the like in order to clearly show the configuration. The number of recesses 31 in the mold 30, the number of holes 32 in the recesses 31, and the recesses 31. The size of the hole 32 with respect to the size of is not limited to the illustrated one.

  A large number of small-diameter through-holes 32 are dispersed and drilled in the bottom surface of each recess 31. A hollow portion 34 having an opening 36 that opens at one end of the mold 30 is formed inside the mold 30, and the internal space S of the hollow portion 34 and the plurality of holes 32 communicate with each other. Yes. With this configuration, if the internal space S is deaerated with a pump or the like (not shown) through the opening 36, air is sucked from the outside into the internal space S through the plurality of holes 32.

  Therefore, if the first film 10 is fed onto the mold 30 by the first film feeding device and the internal space S is deaerated, the first air is sucked through the hole 32 as shown in FIG. The film 10 is adsorbed on the mold 30. Thereby, the 1st film 10 deform | transforms into the shape along the recessed part 31, and the concave accommodating part 15 is formed. At this time, in this embodiment, the first film is pressed toward the mold 30 by the pressing body 35 having a flat bottom surface. Thereby, since the first film 10 is sandwiched between the upper surface of the mold 30 including the peripheral portion of the recess 31 and the bottom surface of the pressing body 35, when the first film 10 is deformed along the recess 31, In the peripheral part of the recessed part 31 and its vicinity, ie, the peripheral part 15b of the accommodating part 15 of the 1st film 10, generation | occurrence | production of a wrinkle is suppressed effectively.

  In addition, if the molding die 30 is heated by the heater 38 during the molding of the housing portion 15 (see FIG. 1), the first film 10 is likely to be deformed along the concave portion 31, and the first film 10 is wrinkled. Can be further suppressed, and the concave accommodating portion 15 can be formed. In addition, it is suitable if the temperature which heats the shaping | molding die 30 is made into the temperature softened to such an extent that the 1st film 10 does not fuse | melt, For example, it can be set as 80-150 degreeC. Further, when the accommodating portion 15 is molded, if the pressing body 35 is heated to a temperature that softens the first film 10 so as not to melt, the first film 10 is softened while being pressed. In addition, wrinkles are less likely to occur in the vicinity thereof, which is preferable. Note that only one of the mold 30 and the pressing body 35 may be heated or both may be heated.

  The first film 10 in which the concave accommodating portion 15 is formed is sent to the next content supply step together with the mold 30. In this embodiment, the first film 10 is supported so as to be placed on the mold 30 from the molding process to the cutting process, and each process is performed along the production line. And intermittently sent downstream.

  In the content supply process, the content M is supplied by the content supply device 40 from above the concave storage portion 15 formed in the first film 10, and the content M is placed in the storage portion 15. Filled. Here, since a plurality of the accommodating portions 15 are formed corresponding to the concave portions 31 of the mold 30, it is preferable that a plurality of the content supply devices 40 are also provided correspondingly. In addition, when manufacturing the small film pack 1, since the accommodating part 15 is also small naturally, the distance between the several content supply apparatuses 40 which supply the content M to this is small, and there exists a possibility that each apparatus may interfere. is there. In that case, as shown in FIG. 4, a plurality of content supply processes can be provided, and the position of the container 15 to be supplied with the contents M can be shifted in each process.

  Next, a crimping process is performed. Depending on the material and thickness of the edible film, or when thermocompression bonding is performed with a strong impulse method, the crimping process may be required only once. An example is provided of a primary pressure-bonding step for temporarily sealing the second film 20 and a secondary pressure-bonding step for further sufficiently heat-bonding.

  In the primary pressure-bonding step, as shown in FIG. 5A, a cylindrical roller is fed while supplying the second film 20 laminated on the base film 21 so that the second film 20 side is in contact with the first film 10. 41 is rolled on the second film 20 through the base film 21. Thereby, the first film 10 and the second film 20 are pressed linearly by the roller 41, and the set of linear pressing points moves in the traveling direction of the roller 41 as the roller 41 rolls. And in this embodiment, the 2nd film 20 is covered on the 1st film 10 simultaneously with moving the roller 41. FIG. Thereby, the air between the 2nd film 20 and the 1st film 10 is escaped so that it may be gradually extruded in the advancing direction of the roller 41, as illustrated with the dashed-dotted arrow. Therefore, unlike the case where the second film 20 is put on the first film 10 at a stretch, the second film 20 can prevent the contents M from rising or scattering due to air pressure. Is coated.

  And in this embodiment, this process is performed in the state which heated the roller 41. FIG. Thereby, the first film 10 is thermocompression-bonded with the second film 20 at a portion excluding the accommodating portion 15 by the pressing force of the roller 41 and the heat of the roller 41, and is temporarily sealed. Here, the primary pressure-bonding step of the present embodiment is performed at a low temperature that does not cause heat shrinkage of the edible film. For example, it can be set to 80 to 150 ° C., which is similar to that in the molding step.

  Next, a secondary pressure bonding step for sufficiently welding the first film 10 and the second film 20 is performed. In the present embodiment, the secondary pressure bonding process is further divided into two processes. That is, in the first secondary pressure bonding step, the pressing die 42 having a flat bottom surface is heated, and the first film 10 and the second film are pressed with the pressing die 42 from above the second film 20 through the base film. 20 is pressed. Here, the temperature T1 of the pressing die 42 can be set to 180 to 250 ° C., for example.

  In the second secondary pressure bonding step that is performed subsequently, impulse-type thermocompression bonding is performed in the present embodiment. Specifically, the first film 10 and the second film 20 are pressed through the base film 21 with a pressing die 42b having a heater (not shown) attached to the bottom surface. In this state, a large current is instantaneously supplied to the heater to generate heat, and the first film 10 and the second film 20 are welded by this heat. The heating temperature T2 by the heater at this time can be set to 100 to 200 ° C., for example.

  Next, a cooling process is performed. This is because when the first film 10 and the second film 20 that have undergone the secondary pressure bonding process remain at a high temperature, the film adheres to the cutting blade 51 in a subsequent cutting process, and the film is deformed or broken. This is because peeling may occur.

  Specifically, as shown in FIG. 7A, the first film 10 and the second film 20 are pressed with the impulse-type pressing mold 42b used in the second secondary press-bonding step. A cooling gas is introduced into the opening 36 from the outside. Thereby, the first film 10 and the second film 20 can be cooled via the hole 32. Furthermore, if it is set as the structure which can circulate between the hollow part 34 and the hole part 32, it can cool efficiently. In addition to cooling by introduction of gas, a configuration in which the pressing mold 42b is cooled and the second film 20 and the first film 10 are further cooled by applying a cooled cooling board to the pressing mold 42b. .

  Prior to the cutting step, a peeling step for peeling the base film 21 from the second film 20 is performed as shown in FIG. At this time, the first film 10 and the second film 20 are prevented from being lifted together with the base film 21 by peeling off the base film 21 while sucking air through the hole 32 of the mold 30. Can do.

  The first film 10 is covered with the second film 20 in a state where the contents M are filled in the plurality of receiving portions 15 formed in a concave shape in the first film 10 in the steps so far, and the receiving portion 15 is excluded. In the configuration, the first film 10 is welded to the second film 20 to form the seal portion 16, that is, as shown in FIG. 9A, a plurality of film packs are connected via the seal portion 16. The uncut sheet 80 having the configuration as described above is supported by the mold 30. Therefore, in the next cutting step, the sealing portion 16 is cut along the outer peripheral edge of the housing portion 15 (see the cutting line 81 indicated by a chain line in FIG. 9B).

  The cutting is performed by lowering the blade support 50 from which the cutting blade 51 protrudes from the bottom surface with respect to the uncut sheet 80. Here, the shape of the cutting blade 51 is set according to the shape of the cutting line 81, and protrudes in a circular shape in this embodiment. The blade support 50 is attached with an elastic body 53 having a height protruding from the tip of the cutting blade 51 toward the second film 20 in a state where the cutting blade 51 is not in contact with the second film 20. (See FIG. 10A). Here, as the elastic body 53, a coil spring, sponge, rubber, or the like can be used.

  With such a configuration, when the blade support 50 is lowered to a position where the cutting blade 51 completely cuts the first film 10, the elastic body 53 has the blade support 50, the second film 20, and the like. (See FIG. 10B). Thereafter, when the blade support 50 is raised, even if the cutting edge of the cutting blade 51 is separated from the second film 20, the second film 20 is pressed downward by the restoring force of the elastic body 53 for a while (FIG. 10 (c)). )reference). Thereby, there is no possibility that the film pack 1 formed by cutting the uncut sheet 81 by the seal portion 16 will rise accompanying the cutting blade 51.

  Note that if the cutting process is performed while sucking through the hole 32 of the mold 30, the object to be cut is cut while being attracted and fixed to the mold 30. In addition, it is possible to more reliably prevent ascending along with high-accuracy cutting.

  Through the steps so far, the first film 10 in which the concave accommodating portion 15 is formed and the second film 20 which is welded to the first film 10 excluding the accommodating portion 15 and covers the accommodating portion 15 are provided. Then, the film pack 1 (see FIG. 12) in which the contents M are filled in the accommodating portion 15 is supported by the molding die 30 in a state of being individually cut (see FIG. 10 (d)).

  In addition, the manufacturing method of this embodiment comprises the packaging process which packages the film pack 1 cut | disconnected one by one with the non-edible packaging body further. Hereinafter, the packaging process will be briefly described with reference to FIG. The packaging process includes a pressure molding process for forming the concave portion 75 in the first package 71, a film pack supply step for supplying the film pack 1 one by one into the concave portion 75, and the film pack 1 in the concave portion 75. A packaging body crimping step of crimping the second packaging body 72 to the first packaging body 71 in the accommodated state.

  More specifically, in the pressure molding step, a plastic sheet such as PET is used as the first packaging body 71, the first packaging body 71 is sandwiched between the pair of concave molding die 61 and the convex molding die 62, and heated. Press molding. As a result, a concave portion 75 having a shape along the concave mold 61 and the convex mold 62 is formed in the first package 71. Thereafter, in the film pack supply process, the first package body is used by using a film pack supply apparatus 64 such as a robot apparatus from the mold 30 that supports the film pack 1 that has been cut by the seal portion 16 through the cutting process. The film packs 1 are transferred one by one into the concave portion 75 of 71.

  Next, in the packaging body crimping step, the first packaging body 71 containing the film pack 1 is covered in the concave portion 75 using an aluminum foil or a transparent film having a high gas barrier property as the second packaging body 72. Then, while pressing the pressing die 66 having a flat bottom surface, pressing is performed from above the second packaging body 72 toward the concave forming die 61. Thereby, the 1st package 71 and the 2nd package 72 are heat-sealed in the part except the recessed part 75, and the packaging sheet in which the film pack 1 was packaged by the 1st package 71 and the 2nd package 72 is formed. The Alternatively, by providing an annular convex portion (for example, 1 mm to 5 mm wide) that matches the shape of the peripheral portion of the concave portion 75 on the bottom surface of the pressing die 66, the first package 71 is formed only by the peripheral portion of the concave portion 75. The second package 72 may be heat sealed.

  By performing such packaging, the storability of the film pack 1 is increased and can be stored hygienically for a long time. And the film pack 1 can be taken out one by one from the concave-shaped part 75 by peeling the 2nd package 72, such as aluminum foil, from the 1st package 71. FIG. In addition, if the 2nd package 72 is provided with the perforation along the outer periphery of the recessed part 75, the 2nd package 72 which coat | covers the adjacent recessed part 75 will not be exfoliated, but one will be peeled off. The film packs 1 can be taken out one by one from the concave portion 75, which is preferable. Further, the packaging sheet can be cut into an appropriate size and further packaged in a package such as a paper box.

  As described above, according to the manufacturing method of the present embodiment, the first film 10 is adsorbed to the recess 31 by adsorbing the first film 10 to the mold 30 including the recess 31 provided with the through hole 32. Since the accommodating part 15 of the shape to follow can be formed, the filling of the content M to the film pack 1 can be performed easily. In addition, since the molding die 30 is heated during the molding step, the accommodating portion 15 can be formed while suppressing the generation of wrinkles in the first film 10.

  In addition, in the molding process, the first film 10 is adsorbed to the concave portion 31 in a state where the first film 10 is sandwiched between the upper surface of the molding die 30 and the bottom surface of the pressing body 35. Wrinkles are unlikely to occur in the peripheral edge portion 15b of the accommodating portion 15 formed in a concave shape. Therefore, the adhesiveness of the 1st film 10 and the 2nd film 20 becomes a thing with a subsequent crimping | compression-bonding process, and the 1st film 10 and the 2nd film 20 can fully be thermocompression bonded.

  Further, in this embodiment, the crimping process is composed of a primary crimping process and a secondary crimping process, and prior to the secondary crimping process, the primary crimping process is performed at a low temperature so that the edible film does not significantly heat shrink. Is more suppressed. In addition, since a plurality of secondary pressure bonding processes are performed in this embodiment, the total time for thermocompression bonding can be lengthened and sufficient thermocompression bonding can be performed.

  Further, in the primary pressure bonding step, thermocompression bonding is performed using a cylindrical roller 41, and the second film 20 is covered on the first film 10 along with the rolling of the roller 41, so that the traveling direction of the roller 41 is increased. Both films are crimped while letting air escape. Thereby, scattering of the content M etc. can be suppressed effectively.

  Further, in the present embodiment, since the mold 30 is moved intermittently on the production line, that is, each process is performed while the mold 30 is stationary for a predetermined time, It is easier to control the positional relationship between the various devices than in the case of moving continuously. Therefore, the positioning accuracy in the contents supply process and the dimensional accuracy in the cutting process are high.

  Moreover, a manufacturing line can be constructed | assembled by a simple structure by using the shaping | molding die 30 through all the processes. In addition, the hole 32 provided in the mold 30 can be effectively used in other processes. That is, in the cooling process, a cooling gas is supplied from the hole 32 to efficiently cool, and in the peeling process and the cutting process, the first film and the second film are stably supplied by suction through the hole 32. Can be supported.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the spirit of the present invention as described below. And design changes are possible.

  For example, in the above embodiment, the case where the primary pressure bonding process and the secondary pressure bonding process are performed in a state where the second film 20 is supported by the base film 21 is illustrated, but the present invention is not limited thereto, and prior to the primary pressure bonding process. A peeling step of peeling the base film 21 from the second film 20 can also be performed.

  Moreover, although the case where a primary crimping process and a secondary crimping process were provided was illustrated as a crimping | compression-bonding process, it is not limited to this, A crimping | compression-bonding process may be performed only once. For example, as shown in FIG. 5 (b), a heater 30h is installed on the peripheral edge of the recess 31 in the mold 30b, and a roller 41b is placed on the second film 20 while flowing a large current to cause the heater to generate heat. Impulse thermocompression bonding can be performed by rolling. Since the impulse method can instantaneously and locally increase the temperature, the edible film is easily welded, and there is an advantage that the pressure for pressure bonding is smaller than that of the hot plate method. Further, as compared with the hot plate type that heats the entire pressing mold, the structure (heater) for generating heat is partial, and the energization time for generating heat to the heater is short.

  Moreover, although the case where a hot-plate-type thermocompression bonding process and an impulse-type thermocompression bonding process are performed subsequently is illustrated as the second secondary pressure-bonding process, it is not limited thereto. For example, as the secondary pressure bonding step, a plurality of hot plate type heat pressure bonding steps are performed, and the heating temperature can be set to be higher in the later steps. Specifically, a first secondary pressure bonding process performed at a temperature t1, a second secondary pressure bonding process performed at a temperature t2, a third secondary pressure bonding process performed at a temperature t3, and a temperature t4. A fourth secondary pressure bonding step may be provided, and t1 = about 180 ° C. <t2 = about 200 ° C. <t3 = about 220 ° C. <t4 = about 250 ° C. In this way, by gradually increasing the temperature so that the temperature is higher in later steps, it effectively suppresses the generation of wrinkles due to heat shrinkage and heats up to the high temperature necessary for welding edible films. The temperature can be raised.

  Further, in the above description, the cooling process is exemplified by the case where the first film 10 and the second film 20 are pressed with the impulse-type pressing die 42b used in the secondary pressing process, but the cooling process is not limited thereto. For example, when the pressure bonding step before the cooling step is a hot plate type, as shown in FIG. 7B, the cooling plate 43 is directly connected without using the pressing die 42 used in the pressure bonding step in the cooling step. In particular, the base film 21, the second film 20, and the first film 10 can be pressed.

  In addition, in the above, the case where the cross-sectional shape of the recess 31 included in the mold 30 is circular in plan view and the case where the circular film pack 1 is manufactured corresponding to this is illustrated, the shape of the film pack is It is not limited, For example, it can be set as various shapes, such as an ellipse, a tetragon | quadrangle, a hexagon, and an octagon, by planar view.

  Moreover, although the said manufacturing method enables manufacture of a small-sized film pack which can be ingested orally, the film pack to be manufactured is not necessarily limited to ingestion. For example, the present invention can be applied as a manufacturing method for manufacturing a film pack that can be filled with powdered juice, powdered tea, powdered soup, seasoning as a content, and then poured into water or hot water for easy eating and drinking. is there.

DESCRIPTION OF SYMBOLS 1 Film pack 10 1st film 15 Storage part 16 Seal part 20 Second film 30 Mold 31 Recess 32 Hole 35 Pressing body 41, 41b Roller M Contents

JP 2009-61108 A

Claims (5)

An edible first film is supplied onto a mold having a recess provided with a through-hole, and the first film is pressed against at least the peripheral edge of the recess by a pressing body through the hole. The first film is adsorbed to the molding die by inhaling and forming a concave accommodating portion along the concave portion in the first film; and
A content supply step for supplying the content into the housing;
A method of manufacturing a film pack, comprising: a step of coating the first film with an edible second film, and thermocompression bonding the first film excluding the housing portion with the second film. The crimping process includes
The thermocompression bonding of the first film and the second film includes a step in which a cylindrical roller is rolled on the second film, and the second film moves with the rolling of the roller. The method for producing a film pack according to claim 1, wherein the first film is gradually covered in a traveling direction of a roller. The method for producing a film pack according to claim 1 or 2, wherein the crimping step is performed in a plurality of times.   The method of manufacturing a film pack according to any one of claims 1 to 3, wherein the forming step is performed while heating the forming die. A cooling step for cooling the first film and the second film that have been thermocompression bonded, and a cutting that is performed after the cooling step and cut by a seal portion formed by thermocompression bonding of the first film and the second film. Further comprising a process,
The crimping step, the cooling step, and the cutting step are performed in a state where the first film and the second film are placed on the mold,
The cooling step is performed by gas flow through the hole,
The method for manufacturing a film pack according to any one of claims 1 to 4, wherein the cutting step is performed while sucking air through the hole.

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