WO2016129803A1

WO2016129803A1 - Packaging pouch for heat-cooked foods, and apparatus and method for manufacturing same

Info

Publication number: WO2016129803A1
Application number: PCT/KR2015/013886
Authority: WO
Inventors: 최봉규
Original assignee: (주)천일
Priority date: 2015-02-13
Filing date: 2015-12-17
Publication date: 2016-08-18

Abstract

Disclosed are a packaging pouch for heat-cooked foods, and an apparatus and method for manufacturing the same. The packaging pouch is configured such that two sheets of internal and external film, in which a thermally adhesive sealant layer is stacked on the internal surface of each thereof, are overlapped in such a manner that the sealant layers are opposite to each other, one side part thereof is open as a to-be-sealed portion, and the other side parts thereof are heat-sealed, wherein the packaging pouch has: a space formed between the folded surface of one upper side of the external film and the folded surface of the other side of the external film, which is folded in a Z-shape; a band paper inserted into the space; and a heat-sealing surface in which the sealant layers of the overlapping surfaces, in which the folded surfaces overlap based on the inserted band paper, are thermally bonded, and wherein the packaging pouch comprises a vapor discharge wing part which protrudes in a wing-like shape from the external film across the transverse width of the pouch, the vapor discharge wing part having a vapor outlet which is formed by horizontally punching through the vapor discharge wing part.

Description

Heated food packaging pouch, apparatus and method for manufacturing same

The present invention relates to a heated cooked food packaging pouch, and an apparatus and method for manufacturing the same. More specifically, when the food inside the packed pouch is heated and cooked, steam is more than a predetermined pressure generated inside the packaging pouch. The present invention relates to a heated food packaging pouch which can be discharged to a furnace, and an apparatus and method for manufacturing the same.

As is well known, cooked or semi-cooked foods are filled and sealed in packaging bags, packaging packs, packaging materials, etc. (hereinafter referred to as packaging pouches) made of heat-resistant plastic film, and heated in a microwave oven immediately before eating. Cooked packaged foods are commercially available.

When the heated foods are cooked in a microwave oven, since the internal pressure rises due to steam generated inside the packaging pouch, the packaging pouch is ruptured, and the contents may scatter or contaminate the inside of the microwave. For example, by using small scissors to drill a small ventilation hole in the pouch, or by cutting off a portion of the pouch to prevent internal pressure buildup, the rupture of the pouch is prevented. Since it is discharged out of, there is a problem that the steam cooking effect due to steam is reduced and drying proceeds to the food inside the pouch, resulting in deterioration of the food.

Accordingly, a large number of patent documents are searched for allowing a part of the heat-sealed portion of the packaging pouch to be peeled off so that steam can be discharged when the internal pressure rises.

However, most conventional technologies having a steam discharge function need to precisely adjust the bonding width and the bonding strength of some heat sealing portions in easy peeling state according to the cooking pressure. There is a problem that the pouch ruptures due to the steam pressure, and by heat-sealing a portion of the easy peeling part in a semi-circular line contact shape through a mold or the like, the steam rapidly advances through the heat sealing part of the line contact. There is a problem that the discharge is not cooked hard contents such as sweet potatoes.

The present invention was developed to solve the above problems, the object of which is to prevent the natural discharge of water vapor generated during heating, prevention of leakage of the contents to the outside of the pouch, and drying of the contents after the discharge of steam as much as possible Another object is to provide a heated food packaging pouch having a vapor discharge structure that is easy to manufacture, and an apparatus and method for manufacturing the same.

Heat-cooked food packaging pouch according to the present invention for achieving the above object, the film of the front and back, each of which has a heat-adhesive sealant layer laminated on the inner surface is overlapped by facing the sealant layer with each other, In the heat-cooked food packaging pouch which heat-seals and opens the other side to the sealing plan part, the fold surface of the upper side and the lower side of the upper side of the film on the surface side as the film on the surface side is folded in a Z shape. A space formed therebetween, a strip inserted into the space, and a heat sealing surface in which the sealant layers of the folded surfaces are heat-sealed around the inserted strip, and having a wing shape over the entire width of the pouch. Including a vapor discharge wing formed protruding from the film, the vapor discharge wing portion in the center of the steam discharge wing A steam exhaust port is formed to penetrate through a flat surface, and an upper heat sealing surface is formed of a strong adhesive surface based on the center of the steam exhaust port, and a lower heat sealing surface is formed of a peeling surface, and The lower portion is characterized in that it has a shape in point contact close to the heat sealing surface of the lower portion.

In one embodiment, a heated food packaging pouch manufacturing apparatus includes: a film supply unit for separating a film having a heat-adhesive adhesive layer laminated thereon into a pair of films and supplying the film vertically; A wing forming portion that forms a vapor discharge wing portion on one of the top and bottom films of the upper and lower pairs of films supplied from the film supply portion; A first sealing part configured to heat seal the lower end of the surface side film and the back side film on which the vapor discharge wing part is formed through the wing formation part to form a bottom sealing part; A second sealing part which heat seals one side of the film passing through the first sealing part to form one side sealing part; A punching portion for punching a vapor exhaust port in the vapor discharge wing portion of the surface side film passing through the second sealing portion; And a cutting part for cutting between the side sealing parts, wherein the steam discharge part of the vapor discharge wing part is formed to penetrate through the center of the vapor discharge wing part horizontally, and the upper heat sealing based on the center of the vapor discharge part. The surface is formed of a strong adhesive surface, the lower heat sealing surface is composed of a peeling surface, the lower portion of the steam exhaust port is characterized in that the point contact in close contact with the lower heat sealing surface.

In the method for manufacturing a cooked food packaging pouch according to the present invention, in the method for manufacturing a food cooked food packaging pouch, after the film of the supply roller in the film supply part is released and separated into a pair of films, the surface side film is supplied to the top. And the back side film is supplied to the bottom of the film supply process; As the surface-side film supplied to the upper portion in the wing forming portion is folded in a Z shape, the stripe supplied from the stripe supply portion is inserted into a space formed between the folded surface of the upper one side of the surface-side film and the folded surface of the lower other side. Thereafter, a process of forming a vapor discharge wing which has a heat sealing surface through thermal fusion of the sealant layer of the folded surfaces around the inserted bandage and protrudes from the film on the surface side in a wing shape over the entire width of the pouch. ; A sealing step of forming a bottom sealing part while passing through the first sealing part, and forming a side sealing part while passing through the second sealing part; A punching step of forming a vapor exhaust port by punching the center horizontally while vertically passing the vapor exhaust wing part through a punching part; And a cutting process of cutting between the side sealing parts at a cutting part, wherein an upper heat sealing surface of the upper part of the vapor discharge wing is composed of a strongly adhesive surface, and a lower heat sealing surface is for peeling. It is configured as a back surface, characterized in that the lower portion of the steam exhaust port has a shape in point contact close to the heat sealing surface of the lower portion.

Through the above problem solving means, the present invention provides the following effects.

According to the present invention, unlike the prior art, the surface-side film is inserted into the space between the folded surface formed over the entire width of the pouch, and after heat-sealing, so that the steam exhaust vent is perforated in the steam discharge wing inserted into the strip. By drilling and installing, the exhaust vents are perforated in the folds and the strip, and the bottom of the steam vent in the state of peeling off by the strip is in a point contact with the lower heat seal surface. Since the strength can be precisely adjusted according to the cooking pressure, it is possible to minimize the increase in moisture of the contents while preventing the outflow of the contents even after the proper heating time has elapsed, and at the same time has an easy structure.

1 is a schematic diagram showing a heated cooking food packaging pouch according to the present invention.

FIG. 2 is an explanatory view showing a state where the steam exhaust port of the pouch of FIG. 1 is opened.

Figure 3 is a side view showing a heated cooking food packaging pouch manufacturing apparatus according to the present invention.

4 is a front view illustrating the steam discharge wing of FIG. 3.

5 is a cross-sectional view taken along the line A-A of FIG.

6 is an operation explanatory diagram for punching and installing a steam exhaust port in the steam exhaust wing.

7 is a flow chart illustrating a method for manufacturing a heated food packaging pouch according to the present invention.

Hereinafter, with reference to the drawings with respect to specific embodiments for implementing the matter of the present invention will be described in detail.

1 illustrates a heated food packaging pouch according to the present invention, and FIG. 2 illustrates a state in which the steam exhaust of the pouch 1 is opened.

As shown in Fig. 1 and Fig. 2, the heated cooking food packaging pouch 10 according to the present invention overlaps the film 12 on the front side and the film 14 on the back side, respectively. Since the heat-adhesive sealant layer is laminated on the inner surface, only the sealing scheduled portion 28 facing the bottom sealing portion 24 is opened, and around the end where the upper and lower films overlap, that is, with the bottom sealing portion 24. By heat-sealing the

side sealing parts

25 and 26 on both sides, after receiving the contents A such as liquid and solid inside through the open sealing plan part 28, the sealing plan part 28 is opened. It can be manufactured as a package by heat sealing to form the normal sealing portion 29.

On the other hand, the film 12 on the surface side is folded from the film 12 on the surface side in a wing shape in parallel to the bottom sealing portion 24 over the entire width of the pouch 10 as the film 12 is folded in a Z shape. It may further include a protruding vapor discharge wing portion 20.

According to an embodiment, the upper surface of the film 12 on the surface side is pushed to one side toward the bottom sealing part 24, and the lower side parallel to the upper side is pushed toward the other side from the bottom sealing part 24 to the other side of the folded surface. As the folded surfaces of the other side and the lower side overlap each other, a space is formed between each of the folded surfaces of the upper one side and the lower other side, and a bandage 30, that is, an easy peeling tape or a film, is inserted into the formed space. The vapor discharge wing 20 may be formed by forming a heat sealing surface 22 by heat-sealing the sealant layer of the surface.

As described above, the strip 30, that is, the easy-fill tape or the film is inserted into the steam discharge wing 20 in which the heat-sealing sealing is performed, may include at least one or more steam exhaust pipes 40. The steam exhaust port 40 may be formed by drilling into a shape of a small circular hole or a slit through the steam discharge wing 20.

When the sealed pouch 10 expands due to steam generation inside the pouch 10 during microwave heating cooking, the sealed pouch 10 is formed in a space between the folded surface of the upper side and the folded side of the lower side of the steam discharge wing 20. Peeling starts to progress upward from the overlapping surface, ie, the lower heat sealing surface 22, which is sandwiched with each other about the inserted strip 30.

Subsequently, as the pouch 10 is expanded and peeling proceeds, the lower part of the vapor exhaust port 40 of the small circular hole is opened at both sides of the strip 30 so that the steam generated inside the pouch 10 is released. By suppressing the excessive rise of the internal pressure to prevent the break of the pouch 10.

In order to further facilitate opening from the lower portion of the steam exhaust port 40, the upper surface of the strip 30 may be formed of a strong adhesive surface, and the lower surface may be formed of a peeling surface.

On the other hand, the pouch 10 includes a sealing scheduled portion 28 that is open for filling the contents at a position opposite to the bottom sealing portion 24, and the

side sealing portions

25 and 26 have a bottom sealing portion 24. The cutting means 18 may be included by a cutout, a cutting line, or the like in the height position of the upper part of the upper part) or in the vicinity of the normal sealing part 29 which heat-sealed the sealing plan part 28. After the pouch 10 is heated and cooked in a microwave oven by the cutting means 18, it can be easily grasped and opened without using cutting tools such as scissors and a knife.

The pouch 10 is horizontally cooked in a microwave oven so that the steam exhaust wing 20 of the pouch 10 is at an upper portion thereof, and the air is expanded or steam is generated by the temperature rise inside the pouch 10. When the pouch 10 expands by increasing the internal pressure, the peeling proceeds between the upper and lower folded surfaces of the vapor discharge wing 40 to open from the lower portion of the steam exhaust port 40 of the small circular hole. Since the constant is continuously performed appropriately, such that the internal arrival state of the proper pressure does not rapidly disappear at once, the steaming effect or the like can be applied to the food.

Films

12 and 14, as is well known, include a composite film in which at least a substrate or sealant layer in a sheet form or film form is laminated, and the substrate is made of polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene tere). Phthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide (nylon-6, nylon-66, polyimide, etc.), or a copolymer of these polymers, such as a plastic film having relatively heat resistance usually used as a packaging material Or silver sheets can be used.

In addition, a known additive such as an antistatic agent, an ultraviolet absorber, a plasticizer, a lubricant, and a coloring agent may be appropriately added to the substrate, if necessary, and the surface thereof may be subjected to surface modification such as corona discharge treatment and anchor coat treatment to sealant. The adhesiveness with a layer can also be improved, and a printing layer can also be formed in the surface or back surface as needed.

As a sealant layer, it can be used if it is resin which has heat | fever sealability, such as polyethylene, a polypropylene, an ethylene copolymer, saturated polyester, and considering the use in a microwave oven, use of the polypropylene resin of 60-80 micrometers thickness is preferable. .

The stripe 30 is preferably an unstretched polypropylene resin-based easy-fill tape or film having a thickness of 30 to 50 µm in consideration of ease of peeling and use in a microwave oven.

Figure 3 shows a heated cooking food packaging pouch manufacturing apparatus according to the present invention, Figure 4 shows the steam discharge wing of Figure 3, Figure 5 shows a cross-section taken along the line A-A of FIG.

As shown in Figure 3, the heating cooking food packaging pouch manufacturing apparatus 100 according to the present invention is a film supply unit for supplying up and down by separating the film formed with a heat-adhesive adhesive layer laminated in a pair of films (12,14) ( 120 and a wing forming unit 140 for forming a vapor discharge wing 20 in any one of the top and

bottom film

12, 14 of the upper and lower pairs of

films

12, 14 supplied from the film supply unit 120, The first sealing portion forming the bottom sealing portion 24 for heat-sealing the lower end of the surface-side film 12 and the back-side film 14, the vapor discharge wing portion 20 is formed through the wing forming portion 140 A second sealing part 180 and a second heat sealing part 160 of the

film

12 and 14 passing through the first sealing part 160 to form one side sealing part 25.26; 2 the punching part 200 and the side sealing part 2 which punch the vapor exhaust port 40 to the vapor discharge wing | blade part 20 of the surface side film 12 which passed the 2 sealing part 180. 5, 26 includes a cutting portion 220 for cutting between.

In the film supply unit 120, the film 2 wound around the supply roller 122 is released to separate the pair of

films

12 and 14, and the front side film 12 is supplied to the upper side and the back side film 14. May be supplied to the bottom.

The wing forming unit 140 includes a plurality of guide bars 142 vertically installed in a direction in which the film is supplied, an upper moving plate 144 for sliding a predetermined stroke along one side of the guide bar 142, and a guide bar. Each of the lower movable plate 146 and the upper and lower

movable plates

144 and 146 to adjust the stroke of the upper and lower

movable plates

144 and 146 along the 142 to move the predetermined stroke sliding to the other side. Stroke adjustment unit 150 may be attached to the.

The stroke adjusting unit 150 may include a screw 152 to which the upper and lower moving

plates

144 and 146 are movably attached, respectively, and a drive motor 154 to drive the screw 152 in reverse rotation. . When the drive motor 154 is actuated, the screw 152 rotates forward and backward, thereby causing the upper and lower

movable plates

144 and 146 to move a predetermined stroke so as to overlap each other in the up and down directions.

As such, the wing forming unit 140 moves the upper portion of the surface side film 12 supplied while descending from the upper portion as the upper movable plate 144 slides a predetermined stroke along the guide bar 142. The lower movable plate 146 is folded toward the other side from the bottom sealing part 24 along the guide bar 142 to the other side of the lower side of the surface-side film 12 parallel to the upper side of the upper one side. As the folded surface and the folded surface on the other side of the lower portion overlap each other, a space 21 is formed between the overlapping surfaces.

The wing forming unit 140 may further include a bandage supply unit (not shown) for inserting the bandage 30 into a space formed between the folded surfaces of the upper one side and the lower other side. The sealant 30 of the overlapping surface in which the stripe 30 supplied from the stripe supply unit is inserted into a space formed between each of the folded surfaces of the upper one side and the lower other side, and the respective folded surfaces overlap with each other about the inserted stripe 30. The vapor exhaust wing 20 may be formed by thermally bonding the layers to form the heat sealing surface 22.

The first sealing unit 160 and the second sealing unit 180 are heat-sealed to form the bottom sealing unit 24 and one of the side sealing units 25.26, and then a cooling unit (not shown) to cool it. It includes more.

The punching part 200 is a vertical guide portion 202 through which the steam discharge wing 20 is erected vertically, and the steam discharge wing 20 located in the vertical guide part 202 by horizontally punching the steam It may include a punching pin 204 for forming the steam exhaust port 40 in the discharge wing 20.

As described above, the heating assembly food packaging pouch manufacturing apparatus according to the present invention passes the steam discharge wing portion 20 supplied through the second sealing portion 180 vertically through the vertical guide portion 202 and punching pins ( By punching horizontally through 204, it is possible to quickly form the steam vent 40 with a certain quality.

Subsequently, the pouch 10 is collected by the collecting unit 240 by cutting between the

side sealing parts

25 and 26 in the cutting part 220.

The manufacturing method of the heating food packaging pouch according to the present invention configured as described above will be described with reference to FIG.

First, after the film 2 wound on the supply roller 122 is released, the film supply process S100 is supplied to the film supply unit 120, followed by the pair of

films

12 and 14 in the film supply unit 120. After separation, the surface-side film 12 is supplied to the upper portion of the wing forming portion 140 and the back side film 14 proceeds to the film separation process in which the wing forming portion 140 is supplied to the lower (S200).

Subsequently, in the wing forming unit 140, a vapor discharge wing unit 20 is formed (S300).

That is, as the upper movable plate 144 slides a predetermined stroke along the guide bar 142, the upper side of the surface-side film 12 supplied while descending from the upper side is folded toward one side toward the bottom sealing part 24, and the upper side The lower movable plate 146 is folded from the bottom sealing part 24 side to the other side along the guide bar 142 with the lower side of the film 12 parallel to the lower side and the folded side of the other side of the lower side. As overlapping with each other, a space 21 is formed between the overlapping surfaces of the respective folded surfaces of the upper one side and the lower other side (S320).

Subsequently, the stripe 30 supplied through the stripe supply unit (not shown) is inserted into the space 21 formed between the respective folded surfaces of the upper one side and the lower other side (S340), and the inserted stripe 30 is inserted into the space 21. The heat seal surface 22 is formed by heat-sealing a sealant layer of a surface where each of the folded surfaces overlap with each other (S360) to form a vapor discharge wing 20.

Next, while passing through the first sealing portion 160 and the second sealing portion 180, heat sealing to form the bottom sealing portion 24 and any one side sealing portion (25.26), and then cooled it The bottom sealing process S400 and the side sealing process S500 are performed.

Thereafter, the punching part 200 is punched horizontally through the punching pin 204 while vertically passing the vapor discharge wing portion 20 vertically through the vertical guide part 202 to form a vapor exhaust pipe 40. Perform the process (S600).

Finally, the cutting part 240 performs a cutting process of cutting between the side sealing parts 25 and 26 (S700), and collects the manufactured pouch 10 from the collecting part 240 (S800).

As described above, the heated cooked food packaging pouch according to the present invention and its manufacturing apparatus and method are opened from the bottom of the steam exhaust port 40 of the small circular hole, through the open steam exhaust port 40 through the pouch 10 The steam generated from the inside escapes to prevent excessive increase in the internal pressure, thereby preventing the pouch 10 from being ruptured, and at the same time, the internal exhaust state of the proper pressure disappears rapidly at a time because the steam exhaust is performed continuously continuously. Since the same thing does not occur, the moistening effect or the like can be applied to the food, and the hard contents such as sweet potato can be cooked with the desired intention.

As described above is only one preferred embodiment according to the present invention, the present invention is not limited to the above-described embodiment, the invention without departing from the gist of the invention as claimed in the following claims Anyone with ordinary knowledge in this field will have the technical spirit of the present invention to the extent that various modifications can be made. In addition, within the scope of the basic technical idea of the present invention, many modifications and applications are also possible for those skilled in the art.

Claims

Two films on the front and back, each of which has a heat-adhesive sealant layer laminated on the inner surface, are laminated to face each other with the sealant layers overlapped, heat-sealed on one side, and the other side to the sealing scheduled portion. In

As the film on the surface side is folded in a Z shape, a space formed between the folded surface of the upper side of the film on the surface side and the folded surface of the lower side, a band inserted into the space, and the inserted band centered on the It has a heat sealing surface heat-sealed the sealant layer of the folded surface, and includes a vapor discharge wing portion protruding from the film on the surface side in the shape of a wing over the entire width of the pouch,

A steam exhaust port is formed at the center of the steam exhaust wing to punch through the steam exhaust wing horizontally, and an upper heat sealing surface of the upper portion of the steam exhaust wing is formed of a strong adhesive surface, and a lower heat sealing surface. And a lower surface of the steam exhaust port, the heated cooking food packaging pouch, characterized in that it has a shape in point contact close to the heat sealing surface of the lower portion.
In the heating cooking food packaging pouch manufacturing apparatus,

A film supply unit for separating the film having the heat adhesive adhesive layer formed thereon into a pair of films and supplying the film vertically;

A wing forming portion that forms a vapor discharge wing portion on one of the top and bottom films of the upper and lower pairs of films supplied from the film supply portion;

A first sealing part configured to heat seal the lower end of the surface side film and the back side film on which the vapor discharge wing part is formed through the wing formation part to form a bottom sealing part;

A second sealing part which heat seals one side of the film passing through the first sealing part to form one side sealing part;

A punching portion for punching a vapor exhaust port in the vapor discharge wing portion of the surface side film passing through the second sealing portion; And

Including a cut portion for cutting between the side sealing portion,

The steam exhaust port of the steam exhaust wing is formed so as to penetrate the center of the steam exhaust wing horizontally, the heat sealing surface of the upper portion based on the center of the steam exhaust port is composed of a strong adhesive surface, the lower heat sealing surface And a peeling back surface, wherein the lower portion of the steam exhaust port has a shape in point contact with the heat sealing surface of the lower portion in close contact with the heating assembly food packaging pouch manufacturing apparatus.
The method of claim 2,

And a film wound around a supply roller is separated into the pair of films so that the front film is supplied to the upper side and the back film is supplied to the lower part of the film supply part.
The method of claim 2,

The wing forming unit may include a plurality of guide bars vertically installed in a direction in which the surface side film is supplied, an upper moving plate for sliding a predetermined stroke along one side of the guide bar, and a predetermined stroke sliding on the other side along the guide bar. And a stroke adjusting portion attached to each of the upper and lower moving plates to adjust the stroke of the upper and lower moving plates.
The method of claim 2,

The wing forming portion further includes a bandage inserting portion for inserting a stripe, wherein the vapor discharge wing portion is folded between the folded surface of the upper side and the lower side of the lower side as the film on the surface side is folded in a Z shape. And a heat sealing surface formed by heat-sealing the sealant layer of the folded surfaces with the bandage supplied from the bandage supply part and inserted into the space, and the sealant layer of the folded surfaces centered on the inserted bandage. The heated cooking food packaging pouch manufacturing apparatus which protrudes from the film of the said surface side in a shape.
The method of claim 2,

The punching part includes a vertical guide part through which the vapor discharge wing part is vertically passed and a punching pin for horizontally punching the vapor discharge wing part positioned in the vertical guide part to form a vapor exhaust port in the vapor discharge wing part. Heating cooking food packaging pouch manufacturing apparatus.
In the method of manufacturing a heated food packaging pouch,

A film supply process in which the film of the supply roller at the film supply part is released and separated into a pair of films, the front side film is supplied to the top and the back side film is supplied to the bottom;

As the surface-side film supplied to the upper portion in the wing forming portion is folded in a Z shape, the stripe supplied from the stripe supply portion is inserted into a space formed between the folded surface of the upper one side of the surface-side film and the folded surface of the lower other side. Thereafter, a process of forming a vapor discharge wing which has a heat sealing surface through thermal fusion of the sealant layer of the folded surfaces around the inserted bandage and protrudes from the film on the surface side in a wing shape over the entire width of the pouch. ;

A sealing step of forming a bottom sealing part while passing through the first sealing part, and forming a side sealing part while passing through the second sealing part;

A punching step of forming a vapor exhaust port by punching the center horizontally while vertically passing the vapor exhaust wing part through a punching part; And

Including a cutting process for cutting between the side sealing portion in the cut portion,

The upper heat sealing surface of the upper portion of the steam exhaust wing is composed of a strong adhesive surface, and the lower heat sealing surface is composed of a peeling surface, and the lower portion of the steam exhaust is of the lower heat sealing surface. A method of manufacturing a heated food packaging pouch according to claim 1, wherein the food packaging pouch has a shape in close contact with the contact point.