JP2019181745A - Manufacturing method and manufacturing device for pouch - Google Patents

Abstract

A pouch is formed from a laminate having a sealant layer and a base film portion as a base material, and has a branch at a front side trunk portion. It is an object of the present invention to provide a pouch manufacturing method and a manufacturing apparatus capable of forming a cutting line by partially punching out only branches. A pouch is formed by forming a spout by laminating a laminated body continuous from above the front body part and a laminated body continuous from below the front body part. A cutting part is provided, and the punching is to punch out only the branch using the punching die and the pedestal, insert the receiving plate between the branch and the front side body, and punch only the branch of the pouch A method and apparatus for manufacturing a pouch, characterized in that a cutting line is formed in a branch by pressing between a blade and a receiving plate, and individual pouches are cut off using a cutter to make single sheets. . [Selection diagram] Fig. 1

Description

  The present invention relates to a manufacturing method and a manufacturing apparatus for a pouch capable of storing a liquid therein. In particular, the present invention relates to a method and an apparatus for manufacturing a pouch, in which only a spout portion of a branch is partially punched to form a spout for a liquid pouch having a branch protruding from a front side body portion.

  Conventionally, a pouch made of a laminate having a sealant layer with a plastic film as a base material is used not only when the sealant layer is composed of a single plastic film but also with other films, resin layers, metal foils, etc. One of the features of the laminated body is that the layer structure and material design according to the required quality depending on the contents are possible, and it is widely used for various applications.

  In particular, a pouch having a spout is excellent in applications that contain the contents of fluid and pour out as necessary. For example, it is widely used for beverages and foods, and is preferably used for pasty foods as well as liquids. There are other examples that are used for seasonings such as miso, and there are many advantages in terms of performance and cost compared to glass bottles and cans.

  In addition to food, for example, toiletries such as liquid detergents and softeners, and industrial products such as engine oil, liquids and pastes can be easily filled, stored, and poured into pouches. In addition, it is possible to realize an excellent storage stability depending on the application.

  In addition, recently, plastic and glass bottles are no longer disposable, and from the viewpoint of environmental protection, there is also a movement to reduce waste by using refillable containers. In particular, the demand for pouches made of a laminate having the above has increased.

  In general, a pouch is a function that can display content information on a surface visible from the outside, store the content inside the pouch, protect the content from the external environment or physical external force, and save it When taking out the contents, the ease of taking out, especially the ease of pouring out if it is a liquid, is important, and the form and material composition vary depending on the contents, their use, and purpose .

  In particular, with regard to the ease of pouring the contents, when the pouch is opened and taken out from the opening, not only the pouring is stable and easy, but also the spilling out and dirty hands and clothes If this is the case, it is inconvenient, and it is desirable that the opening be stable in shape. This is also particularly required in, for example, refill containers.

  Or the problem that the stable and easy pouring cannot be obtained is pointed out because the flow path and the opening part are easily closed due to the reduction of the contents due to the rigidity and resilience of the plastic film.

If the stable shape cannot be maintained, the pouring operation itself is unstable, and there is a possibility that the contents may spill out. Alternatively, if the opening closes during the pouring of the contents, the opening must be reopened, and the operation with the fingers is more difficult than the opening of the new contents, In addition to the risk of spilling, fingers and clothes could become dirty, which has plagued users and consumers.

  Regarding the ease of pouring, whether the contents are liquid or pasty, improvement is required as a common problem. Conventionally, for example, a plug has been attached to a pouch to improve the ease of removal.

  However, in order to attach the plug, since the plug is generally formed of a separate member, there are problems such as high material costs and an increase in the manufacturing process.

  In addition, when a pouch is used as a container for refill, which has been put to practical use in detergents and shampoos, etc., the purpose of the refill is to save resources and to reduce waste. The retrograde movement is not welcome.

  However, in many cases, a pouch having a plastic film as a base material and having a sealant layer is sealed by a sealant layer on both sides of the three or four sides of the pouch and the opening. Depending on elasticity and flexibility, a stable shape may not be maintained, which may hinder stable and easy pouring.

  In general, a pouch is made by making the sealant layers of the laminate constituting the pouch face each other and sealing the peripheral edge of the pouch, and because of its simple structure, the manufacturing process is simple and advantageous in terms of cost. However, when trying to pursue the stability and ease of the above-mentioned pouring, it was not sufficient.

  On the other hand, paying attention to this point, when pouring out the liquid of the contents, in order to maintain the shape of the spout and the opening, a branch is provided in the pouch body, the upper part of the body is folded, and the purpose is The shape to be achieved has been devised.

  This pouch is composed of a body part, a bottom part, and a branch, and this body part is composed of a front side body part and a back side body part, and the side end part and the upper end part are heat-sealed. is there.

  Also, at the lower part of the body part, a bottom plate is heat-sealed between the front side body part and the back side body part to form an expandable sealed bottom part. It has a branch extending over and extending.

  This branch is a fold line at the height of the branch, and the laminated body that continues from the upper side of the front side body part overlaps with the laminated body that continues from the lower side of the front side body part so that it can be folded back either up or down the front side body part. The side end portion and the tip end portion are heat sealed.

  Moreover, the tip of the branch is provided so as to be removable from the branch, and the pouch can be opened to form a spout. That is, it is a pouch having a spout and an opening at the branch portion.

  However, the pouch of this shape is stable and easy to pour out by improving the shape retention of the pouch at the time of pouring by branching, but the branch part is sealed facing the laminate, It overlaps twice to form a branch.

Therefore, for example, if a cutting line for cutting off a branch by leaving a spout by punching is provided on the premise of a certain productivity, the branch and the body part are punched through together, and the branch portion It was a difficult task to punch out only, and the manufacturing method had difficulty.

  Patent Document 1 proposes a sealed bag having a folded portion and a method for manufacturing the same, but at least the inner layer is composed of a tubular inflation film, and the folded portion is formed while the inflation film remains in an endless state in the circumferential direction. And a pouch having a folded portion in which a heat seal portion is formed in a state where the inside of the pouch is sealed, and a pouch having a folded portion (branch chamber) by pushing a part of a side surface of a cylindrical sheet. Match by point.

  However, in this folding part (branch chamber), the processing of the cutting line for forming the extraction part and the formation of the outlet are not described and are not considered.

  Further, in Patent Document 2, the Thomson blade is moved in the transfer direction of the cut sheet transferred by the conveyor belt, and the Thomson blade is lowered so as to approach the cut surface of the cradle and transferred to the cut surface. There is a proposal of a cutting device for cutting a sheet to be cut with a Thomson blade.

  However, even if it is possible to perform punching on the premise of a certain productivity, it is difficult to cut the cutting line into the tapered shape of the spout and to cut only the branch part. It was a situation.

Japanese Patent Laid-Open No. 11-130091 JP 2007-283440 A

  The present invention has been made in view of such a situation, and is composed of a laminate having at least a sealant layer, with a plastic film as a base material, capable of storing a liquid content, and having a branch in a front side body portion. To provide a manufacturing method and a manufacturing apparatus for a pouch capable of forming a cutting line for forming a spout at a branch portion of a pouch that is easy to pour out and stable, by partially punching only the branch. Is an issue.

As means for solving the above problems, the invention according to claim 1
A method for producing a pouch comprising a plastic film as a base material and using a laminate comprising at least a sealant layer,
The pouch is composed of a front side body part, a branch projecting from the front side body part, and a back side body part,
The front-side body part and the back-side body part are supplied to a pouch manufacturing apparatus with a long laminate facing the sealant layers, and the peripheral part of the part that becomes the pouch is sealed to make a bag.
The bifurcation is a fold line at the height of the bifurcation, and can be folded to either the upper or lower side of the front side body part, and a laminated body continuous from the upper side of the front side body part and a laminated body continuous from the lower side of the front side body part are overlapped. The side end portion and the tip end portion are sealed to form a spout, and a branch projecting from the front side trunk portion with the spout is provided.
The branch is provided with a cutting line by punching so that the spout can be cut out with fingers, leaving the spout on the front body side.
The cutting line is provided with a cutting portion through which punching penetrates and a non-cutting portion through which punching does not penetrate in part,
In the portion that will be inside the pouch of the spout, there is a planned opening line,
The punching is performed by punching only the branch using a punching blade fixedly installed in the punching die and a cradle for receiving the punching blade.
The punching is performed by stopping the pouch conveyance when the branching portion of the pouch being conveyed reaches between the punching blade and the cradle, and inserting a receiving plate between the branch and the front body portion. By pressing only the branch between the punching blade and the backing plate with the cradle as a support, a cutting line is formed at the branch,
Furthermore, it is the manufacturing method of a pouch characterized by cut | disconnecting each pouch using a cutter and making it a single-wafer pouch.

The invention according to claim 2
2. The pouch manufacturing method according to claim 1, wherein punching of the branch cutting line is performed by a Thomson blade in which a punching blade is fixedly installed in a punching die. 3.

The invention according to claim 3
The pouch according to claim 1 or 2, wherein the backing plate has a thickness of 0.8 mm to 1.5 mm, and is made of polyethylene terephthalate resin, polyurethane resin, or rubber. It is a manufacturing method.

The invention according to claim 4
The bottom part of the body part of the pouch is sealed with a bottom tape between the front side body part and the back side body part to form a bottom part that is expandably sealed. A method for producing a pouch according to claim 1.

The invention according to claim 5
The pouch production method according to any one of claims 1 to 4, wherein the planned opening line includes an easy opening mechanism.

The invention according to claim 6
The pouch manufacturing method according to any one of claims 1 to 5, wherein a cutting line of the branch portion is connected to a planned opening line.

The invention according to claim 7
A pouch made of a plastic film as a base material, comprising a laminate including at least a sealant layer, a front side body part, a branch projecting from the front side body part, and a back side body part,
The front side body part, the back side body part, and the branch are provided with a mechanism for supplying a long laminated body with the sealant layers facing each other, sealing the peripheral part of the part that becomes a pouch, and making a bag,
The bifurcation is a fold line at the height of the bifurcation, and can be folded to either the upper or lower side of the front side body part, and a laminated body continuous from the upper side of the front side body part and a laminated body continuous from the lower side of the front side body part are overlapped. The side end portion and the tip end portion are sealed to form a spout, and the front side trunk portion has a spout with a planned opening line, and is branched off.
A cutting line composed of a cutting part and a non-cutting part using a punching blade fixed to the punching die and a cradle for receiving the punching blade. Equipped with a mechanism to punch
The punching is performed by stopping the pouch conveyance when the branching portion of the pouch being conveyed reaches between the punching blade and the cradle, and inserting a receiving plate between the branch and the front body portion. A mechanism for forming a cutting line only on the branch by pressing the branch between the punching blade and the receiving plate with the cradle as a support,
The pouch manufacturing apparatus further includes a mechanism for separating individual pouches using a cutter to form a single-wafer pouch.

  According to the present invention, it is easy to pour out and is stable, consisting of a laminate having at least a sealant layer with a plastic film as a base material that can store liquid contents, and having a branch in the front side body portion. It is possible to supply a manufacturing method and a manufacturing apparatus for a pouch capable of forming a cutting line for forming a spout at a branch portion of a typical pouch by partially punching only the branch.

  In particular, according to the second aspect of the present invention, when the cutting line for forming the spout at the branch portion is formed by partially punching only the branch, the Thomson blade is used, and more accurately, It is possible to perform punching with excellent productivity.

  In particular, according to the third aspect of the present invention, when forming the cutting line for forming the spout at the branch portion by partially punching only the branch, the receiving plate is inserted between the branch and the front body portion. As a result, it is possible to ensure that only the branch is punched out.

  In addition, by setting the thickness and material of the backing plate within the range described in claim 3, it is possible to perform punching with higher accuracy and excellent productivity.

  In particular, according to the invention described in claim 4, after filling the liquid of the contents, it is possible to give the pouch self-supporting property and to efficiently increase the capacity of the pouch.

  According to the invention described in claim 5 in particular, the unscheduled opening line is provided with an easy opening mechanism, so that it is easier to open the pouch with fingers after the branch is cut off leaving the spout. It can be.

  According to the invention described in claim 6 in particular, the cutting line of the branch portion is connected to the planned opening line, so that it is provided inside the spout and cut off leaving the spout of the branch. The opening along the opening line can be performed continuously, and the opening of the pouch can be made easier.

  In particular, according to the invention described in claim 7, the plastic film is used as a base material, and the laminate is composed of at least a sealant layer. It is possible to supply a pouch manufacturing apparatus capable of forming a cutting line for forming a spout at a branch portion of a simple pouch by partially punching only the branch.

FIG. 1 is a schematic perspective view for explaining one embodiment of a pouch manufactured by the method and apparatus for manufacturing a pouch according to the present invention. FIG. 2 is a schematic diagram for explaining one embodiment of a method and an apparatus for manufacturing a pouch according to the present invention. FIG. 3 is a schematic view for explaining a punched portion, in particular, one embodiment of the method and apparatus for manufacturing a pouch according to the present invention.

  Hereinafter, the present invention will be described in more detail with reference to FIGS. However, the present invention is not limited to the examples shown here. The invention is limited only by the following claims.

FIG. 1 is a schematic perspective view for explaining an embodiment of a pouch manufactured by a manufacturing method and a manufacturing apparatus according to the present invention.

  The pouch (100) manufactured in the manufacturing method and the manufacturing apparatus according to the present invention is composed of a trunk part (1) and a branch (40). The trunk part (1) is a front side trunk part (20). ) And the back side body part (10), and the side end part (6), the upper end part (7) and the lower end part (12) are sealed and sealed.

  Moreover, in the example shown in FIG. 1, in the lower part of the pouch (2), the bottom tape (50) folded in the folding line (9) is between the front side body part (20) and the back side body part (10). When the contents are filled, the bottom tape (50) expands to form a surface at the bottom, and the pouch (100) can be provided with independence. .

  In addition, since the bottom tape (50) is expandable, it is possible to easily increase the content of the pouch (100).

  The branch (40) is a fold line (22) at the height position of the branch (A), and can be folded back to either the top or the bottom of the front side body (20), Then, the front body part (20) is laminated with the laminated body continuous from below, and the side end part and the front end part are sealed to form the spout (13). That is, the branch (40) protruding from the front side body (20) with the spout (13) is formed.

  Further, the branch (40) is provided with a cutting line (8) that can be cut off by using, for example, fingers, leaving the spout (13), which is formed by punching only for the branch (40). ing. The cutting line (8) is provided so as to be able to be cut using fingers, but can also be cut using a tool such as a blade or scissors.

  However, the cutting line (8) has a part not punched in part, that is, a non-cutting part (19). That is, the cutting line (8) consists of a cutting part (18) and a non-cutting part (19). In the example shown in FIG. 1, the branch (40) is in a state before being cut by the cutting line (8).

  Maintaining the state before cutting as the pouch (100) means that when the pouch (100) is opened, the spout (13) reveals its outer shape by cutting the branch (40) along the cutting line (8). In addition, it is effective for avoiding unintentional opening etc. because it requires a procedure such as opening the opening (14) by cutting along the planned opening line (11) provided at the tip of the spout (13). It is.

  The portion of the cutting line (8) that has not been punched, that is, the non-cutting portion (19), is not easily separated before opening, and its position is within the range that can be separated by fingers. The location and shape are arbitrary. For example, a broken line shape may be sufficient and about two places may be provided in the right and left of the spout (13).

  Moreover, the opening schedule line (11) is provided in the part inside the pouch of the spout (13). In the case of pouring the contents, etc., when the planned opening line (11) is opened, that part becomes the opening (14).

  That is, the opening (14) can be formed by tearing the planned opening line (11) with fingers, a knife, scissors or the like. In particular, when tearing with fingers, by providing an easy opening mechanism on the expected opening line (11), the opening operation can be performed more easily and accurately.

  Furthermore, although different from the example shown in FIG. 1, when the cutting line (8) and the scheduled opening line (11) provided with the easy opening mechanism are connected, the spout (13) of the branch (40) It is possible to continuously cut off the other portions and open along the planned opening line (11) at a time, and the opening of the pouch (100) becomes even easier.

  In actual opening, first, the upper upper body portion (30) is pulled down in the direction of arrow (16), that is, behind the pouch (100). Subsequently, the branch (40) is caused to move in the direction of the arrow (17), and the branch (40) is positioned above the pouch (100). Then, the cutting line (8) is cut off with a finger, for example, and further opened ( By cutting 11) to form and expose the opening (14), the liquid content can be poured out.

  As described above, when the opening schedule line (11) is provided with an easy opening mechanism, it can be opened easily and accurately with fingers, and when the notch (15) is provided, the notch With the use of (15), it becomes possible to open more easily.

  The easy opening mechanism of the planned opening line (11) can be formed by, for example, a laser beam, a half-cut line by a blade, or the like, or the ease of tearing due to the orientation of the plastic film can be applied.

  Also, by pouring both ends of the upper upper body portion (30) pulled down to the rear of the pouch (100) and pouring out, the spout (13) swells in a funnel shape, and the liquid flow path of the contents However, it is possible to make the pouring easy and stable.

  FIG. 2 is a schematic diagram for explaining one embodiment of a method and an apparatus for manufacturing a pouch according to the present invention.

  The pouch manufacturing apparatus (60) according to the present invention includes a plastic body as a base material and a laminate including at least a sealant layer, and includes a front body part (20) and a branch projecting from the front side body part (20). (40) and a manufacturing device for a pouch (100) comprising the back side body (10).

  The pouch manufacturing apparatus (60) according to the present invention includes a front body part, a back body part, and a long laminate used for branching, and the sealant layers are opposed to each other and supplied to the manufacturing apparatus, and the peripheral part is sealed. It has a mechanism for making bags.

  That is, in the unwinding part (52), the long laminated bodies (51) are arranged in two stages in the figure, and are each wound up with the sealant layer as the outer surface. These sealant layers are stacked so as to face each other and supplied to the manufacturing apparatus.

  Subsequently, in the example illustrated in FIG. 2, the long stacked body that is transported in an overlapped manner is a vertical seal portion (53) and a horizontal seal portion (54) with a front side body portion (20) and a back side body portion ( 10) The peripheral edge of 10) is sealed and made into a bag.

  The pouch manufacturing apparatus (60) according to the present invention includes a mechanism for forming a branch (40). That is, the branch (40) is a fold line (22) at the height position (A) of the branch, and can be folded back to either the top or bottom of the front side body, and the laminated body continuous from above the front side body (30), The body part (20) was laminated with the laminated body continuous from below, and the side end part and the tip part other than the spout (13) were sealed to form a spout, and the opening side line was provided from the front side body part. A mechanism for forming an overhanging branch having a spout is provided.

  That is, the branch (40) is a laminated body that is continuous from above the front side body part (30) and a laminated body that is continuous from below the front side body part (20) in the vertical seal part (53) and the horizontal seal part (54). And the side end and the tip of the branch (40) other than the spout (13) are sealed.

  The pouch manufacturing apparatus (60) according to the present invention includes a mechanism for punching the branch (40). In other words, the branch (40) can be cut using the cutting line (8) that can be cut off leaving the spout (13), the cutting die in which the punching blade is fixedly installed in the cutting die, and the cradle that receives the cutting blade. Is provided with a mechanism for forming a cutting line (8). This mechanism will be described later with reference to FIG.

  For punching, when the branch part of the pouch being transported reaches between the cutting blade and the cradle, the transport of the part that becomes the pouch is stopped, and a receiving plate is inserted between the branch and the front body part, A mechanism for forming a cutting line at the branch is provided by pressing only the branch of the pouch between the cutting blade and the receiving plate with the receiving table as a support. This mechanism will be described later with reference to FIG.

  The punching method using the punching blade (56) in the punching portion (55) is not limited, but a generally used, for example, Thomson punching mechanism can be used. This is a mechanism that uses a Thomson blade to intermittently punch out the pouch by the vertical movement of the Thomson blade, which is supplied between the Thomson blade and the Thomson blade. This part will be described in detail in the explanation using FIG. State.

  When the cutting line (8) is formed by punching, the pouch manufacturing apparatus (60) according to the present invention leaves not only the cut part (18) but also a part not punched, that is, a non-cut part (19). Equipped with a punching mechanism.

  The pouch manufacturing apparatus (60) according to the present invention further includes a mechanism that separates individual pouches using, for example, a shear cutter to form a single-wafer pouch (58). The sheet pouch (58) cut into sheets by the cutter unit (57) can be stored, for example, on the stacker (59).

  FIG. 3 is a schematic view for explaining a punched portion, in particular, one embodiment of the method and apparatus for manufacturing a pouch according to the present invention.

  The punching portion (55) is an example of a Thomson type punching mechanism in the example shown in FIG. In the example shown in FIG. 3, the punching portion (55) is formed by attaching a Thomson blade (64) with a punching blade (56) fixed to the unit of the lateral seal portion (54) instead of the seal bar ( 67).

  Accordingly, the upper portion of the punched portion (55) is configured by attaching a Thomson blade (64) to the heater block (62) as a punching die (67). The lower part of the punching part (55) is a cradle (63), which is made of, for example, polyethylene terephthalate resin or polyacetal resin.

  The pouch supplied to the punching part (55) is in a semi-processed state in which a bag has already been made through the vertical seal part (53) and the horizontal seal part (54). In the example shown in FIG. 3, the branch (40) is folded, and the branch (40) is folded toward the upper side of the packaging bag. Moreover, it is the state which the front side trunk | drum (20) of the trunk | drum (1) is turned up, is conveyed, and is supplied to the punching part (55).

  The Thomson blade (64) is a mechanism in which the punching blade (56) is fixedly installed and punched out, leaving a portion not punched in part, that is, a non-cut portion (19). That is, since the cutting line (8) has a cutting part (18) and a non-cutting part (19) that is not punched in part, the branch (40) leaves the spout (13). The state before cutting can be maintained.

  The present invention includes a punching blade (64) fixedly installed on a punching die (67), a punching blade (64), a cutting line (8) that can be cut off, leaving a spout (13), and a punching blade (64). Punching using the cradle (63) that receives the pouch (100) when the branch (40) of the pouch (100) being conveyed reaches between the die (67) and the cradle (63). 100) is stopped.

  At the same time, the receiving plate (61) is inserted in the direction of the arrow (65) between the branch (40) and the front side body portion (20), and the branch (40) of the pouch is connected to the cutting die (67) and the receiving plate (61). A mechanism for punching only the branch (40) and forming the cutting line (8) by pressing in the direction of the arrow (66) with the cradle (63) as a support.

  As a result of intensive studies of the present invention, it is optimal that the backing plate (61) has a thickness of 0.8 mm to 1.5 mm, and the material is any one of polyethylene terephthalate resin, polyurethane resin, and rubber. I found out.

In other words, by setting the thickness and material of the backing plate (61) within the above-mentioned ranges, it is possible to achieve punching with higher accuracy and excellent productivity. Since it is not separated into individual pouches, it is transported to the next cutter part (57), and is cut into, for example, a single-wafer pouch with a shear cutter or the like, and the pouch (100) using the manufacturing method and manufacturing apparatus according to the present invention. The manufacture of is complete.

  As described above, according to the present invention, the liquid content can be stored, the plastic film is used as a base material, the laminate includes at least a sealant layer, and the front side body portion has a branch. In addition, it is possible to supply a manufacturing method and a manufacturing apparatus for a pouch capable of forming a cutting line for forming a spout at a branch portion of a stable pouch by partially punching only the branch.

  Moreover, this invention consists of a laminated body which has a sealant layer at least using a plastic film as a base material which can store the liquid content. That is, it is possible to select a layer constituent material and design a layer structure according to the use, contents, and required quality of the pouch.

  Here, the plastic film used as the base material is a film made of a polymer resin composition, for example, polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide (nylon 6, Nylon-66, etc.), polyimide and the like can be used, and is appropriately selected according to the application.

  In particular, when polypropylene or polyethylene terephthalate is used as a base film, it is more preferable in terms of film strength and price. Moreover, when using a polyamide film in a laminated body, it is excellent in stab resistance, impact resistance, and mechanical strength.

In addition, the sealant layer is formed by stacking two laminates so that the sealant layers face each other, for example, by heating and pressurizing and heat-sealing to bond each other and making a bag on a pouch. .

  As a material for the sealant layer, a polyolefin resin is generally used among thermoplastic resins. Specifically, a low density polyethylene resin (LDPE), a medium density polyethylene resin (MDPE), and a linear low density polyethylene resin. Ethylene resins such as (LLDPE), ethylene-vinyl acetate copolymer (EVA), ethylene-α olefin copolymer, and ethylene-methacrylic acid resin copolymer can be used.

  Alternatively, a polypropylene resin such as a blend resin of polyethylene and polybutene, a homopolypropylene resin (PP), a propylene-ethylene random copolymer, a propylene-ethylene block copolymer, a propylene-α-olefin copolymer, or the like is used. Can do.

  For the formation of the sealant layer, a molten resin can be formed using an extruder or the like to form a layer on the laminate. Alternatively, it is possible to form a sealant layer on the surface of the laminate by laminating materials previously formed into a film state by lamination.

  Moreover, this laminated body can provide the opaque body which shields ultraviolet rays etc., such as a colored film, in a laminated body, for the purpose of improving the preservability of the content etc., for example. Or a gas barrier layer can be provided in the laminated body which uses a plastic film as a base material.

  Although a metal foil or the like can be used as the gas barrier layer, for example, a gas barrier film in which a gas barrier layer made of an inorganic compound is deposited in a laminate can be provided as the gas barrier layer. In any case, it is effective for improving the storage stability of the contents.

  In the case of a gas barrier film, the plastic film to be used is not particularly limited. For example, when polypropylene or polyethylene terephthalate is used as a plastic film substrate, the film strength and price are low, and the low adsorption property is used. More preferred.

  In the case of a gas barrier film, the gas barrier layer can be composed of, for example, a vapor deposition layer of an inorganic compound and a coating layer. After an anchor coat is provided on a plastic film, a vapor deposition layer of inorganic compound and a coating layer are sequentially provided.

  As a method of forming a vapor deposition layer of an inorganic compound, an inorganic compound such as SiO or AlO is deposited on a plastic film provided with an anchor coat layer using a vacuum vapor deposition method, and an inorganic compound layer is formed by a vacuum vapor deposition method. be able to.

  As a method for forming the coating layer, an aqueous solution or water containing at least one of a water-soluble polymer, (a) one or more alkoxides or hydrolysates thereof, or (b) tin chloride. A coating agent mainly composed of an alcohol / alcohol aqueous solution is applied on a film and dried by heating to form an inorganic compound layer by a coating method to form a coating layer.

  At this time, the adhesion with the anchor coat layer can be improved by adding a silane monomer to the coating agent.

  An inorganic compound layer has a gas barrier property only by a film formed by a vacuum vapor deposition method, but a coating layer that is an inorganic compound layer formed by a coating method is formed on the vapor deposited layer that is an inorganic compound layer formed by a vacuum vapor deposition method to form a gas barrier layer. Can do.

  Therefore, the gas barrier film has higher gas barrier properties, moisture resistance, and water resistance, and has flexibility to resist deformation due to external force, so that it can be suitable as a pouch.

  When SiO is used as the gas barrier layer, for example, the coating is transparent, so that the contents can be seen from the outside of the packaging material.

  If necessary, a printed layer is applied to the layer visible from the outside of the pouch in a laminate based on a plastic film for the purpose of improving the image of the product, displaying necessary information about the contents, and improving the design. Can be provided. The print layer may be provided on the outermost layer of the pouch.

  The printed layer may be provided on a part of the pouch or may be provided over the entire surface of the pouch. Or as a method of providing a display part without using a printing layer, it is also possible to stick the seal printed on the surface of a pouch, for example.

  Here, the printing method and the printing ink are not particularly limited, but from among known printing methods, printability to plastic films, design properties such as color tone, adhesion, or food containers You may select suitably, if safety | security etc. are considered.

  For example, a known printing method such as a gravure printing method, an offset printing method, a gravure offset printing method, a flexographic printing method, a silk screen printing method, or an ink jet printing method can be selected and used. Among them, the gravure printing method can be preferably used in terms of productivity, printability on a plastic film, and high definition of a pattern.

  As described above, according to the present invention, it is easy to pour out, which is made of a laminate having at least a sealant layer with a plastic film as a base material, which can store liquid contents, and has a branch on the front side body portion. In addition, it is possible to supply a manufacturing method and a manufacturing apparatus for a pouch capable of forming a cutting line for forming a spout at a branch portion of a stable pouch by partially punching only the branch.

DESCRIPTION OF SYMBOLS 1 ... Body part 2 ... Pouch lower part 6 ... Side edge part 7 ... Upper end part 8 ... Cutting line 9 ... Folding line 10 ... Back side body part 11 ... Planned opening Line 12 ... lower end 13 ... spout 14 ... opening 15 ... notch 16 ... arrow 17 ... arrow 18 ... cutting part 19 ... non-cutting part 20 ...・ Front side body part 22 ... Folding line 30 ... Front side body part upper part 40 ... Branch 50 ... Bottom tape 51 ... Long laminate 52 ... Unwinding part 53 ... Vertical Seal part 54 ... Horizontal seal part 55 ... Punching part 56 ... Punching blade 57 ... Cutter part 58 ... Single wafer pouch 59 ... Stacker 60 ... Manufacturing device 61 ... Base plate 62 ... Heater block 63 ... Base 64 ... Thomson blade 65 ... Arrow 66 ... Arrow 67 ... Pull out 100 ... pouch A ··· branch height position

Claims (7)

A method for producing a pouch comprising a plastic film as a base material and using a laminate comprising at least a sealant layer,
The pouch is composed of a front side body part, a branch projecting from the front side body part, and a back side body part,
The front-side body part and the back-side body part are supplied to a pouch manufacturing apparatus with a long laminate facing the sealant layers, and the peripheral part of the part that becomes the pouch is sealed to make a bag.
The bifurcation is a fold line at the height of the bifurcation, and can be folded to either the upper or lower side of the front side body part, and a laminated body continuous from the upper side of the front side body part and a laminated body continuous from the lower side of the front side body part are overlapped. The side end portion and the tip end portion are sealed to form a spout, and a branch projecting from the front side trunk portion with the spout is provided.
The branch is provided with a cutting line by punching so that the spout can be cut out with fingers, leaving the spout on the front body side.
The cutting line is provided with a cutting portion through which punching penetrates and a non-cutting portion through which punching does not penetrate in part,
In the portion that will be inside the pouch of the spout, there is a planned opening line,
The punching is performed by punching only the branch using a punching blade fixedly installed in the punching die and a cradle for receiving the punching blade.
The punching is performed by stopping the pouch conveyance when the branching portion of the pouch being conveyed reaches between the punching blade and the cradle, and inserting a receiving plate between the branch and the front body portion. By pressing only the branch between the punching blade and the backing plate with the cradle as a support, a cutting line is formed at the branch,
Furthermore, each pouch is cut | disconnected using a cutter and it is set as a single-wafer pouch, The manufacturing method of the pouch characterized by the above-mentioned.   2. The method of manufacturing a pouch according to claim 1, wherein punching of the branch cutting line is performed by a Thomson blade in which a punching blade is fixedly installed in a punching die.   The pouch according to claim 1 or 2, wherein the backing plate has a thickness of 0.8 mm to 1.5 mm and is made of any one of polyethylene terephthalate resin, polyurethane resin, and rubber. Manufacturing method.   The bottom part of the body part of the pouch is sealed with a bottom tape between the front side body part and the back side body part to form an expandable sealed bottom part. A method for producing a pouch according to claim 1.   The method for manufacturing a pouch according to any one of claims 1 to 4, wherein the planned opening line includes an easy opening mechanism.   The method for manufacturing a pouch according to any one of claims 1 to 5, wherein a cutting line of the branch portion is connected to a planned opening line. A pouch made of a plastic film as a base material, comprising a laminate including at least a sealant layer, a front side body part, a branch projecting from the front side body part, and a back side body part,
The front side body part, the back side body part, and the branch are provided with a mechanism for supplying a long laminated body with the sealant layers facing each other, sealing the peripheral part of the part that becomes a pouch, and making a bag,
The bifurcation is a fold line at the height of the bifurcation, and can be folded to either the upper or lower side of the front side body part, and a laminated body continuous from the upper side of the front side body part and a laminated body continuous from the lower side of the front side body part are overlapped. The side end portion and the tip end portion are sealed to form a spout, and the front side trunk portion has a spout with a planned opening line, and is branched off.
A cutting line composed of a cutting part and a non-cutting part using a punching blade fixed to the punching die and a cradle for receiving the punching blade. Equipped with a mechanism to punch
The punching is performed by stopping the pouch conveyance when the branching portion of the pouch being conveyed reaches between the punching blade and the cradle, and inserting a receiving plate between the branch and the front body portion. A mechanism for forming a cutting line only on the branch by pressing the branch between the punching blade and the receiving plate with the cradle as a support,
Furthermore, the manufacturing apparatus of a pouch characterized by providing the mechanism which cut | disconnects each pouch using a cutter and makes it a single-wafer pouch.

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