KR102265672B1 - Retort pouch with steam outlet - Google Patents

Abstract

The present invention relates to a retort pouch with steam outlets. The present invention provides a retort pouch with steam outlets, comprising: a plurality of steam outlets having perforated holes at upper portions of the retort pouch by bonding the front surface and the back surface thereof; and a bottom seal formed at the lower end of the retort pouch in a round shape to erect the retort pouch on the floor, wherein the steam outlets are arranged at positions symmetric with respect to the center of the retort pouch. The present invention can safely heat content within the retort pouch while cooking is performed using a microwave oven by discharging steam within the retort pouch, generated when content within the retort pouch is heated for the proper time, to the outside. In addition, the present invention can increase the heating effect and texture of a food as compared with a method for discharging, to the outside, internal steam generated during a cooking process by opening a portion of a cover film of a container prior to heating the container.

Description

RETORT POUCH WITH STEAM OUTLET

The present invention relates to a retort pouch having a vapor outlet, and to a retort pouch having a vapor outlet that is automatically opened by pressure in the pouch to discharge steam.

Recently, various kinds of instant food have been developed and marketed. These instant foods are sealed and stored in various packaging containers, distributed and sold.

Among them, the retort pouch food is mainly sterilized at high temperature in a sealed state in which the cooked liquid food is put in the pouch and distributed. These liquid food retort pouch foods are being applied to various kinds of instant foods because of the characteristics that the pouch is not damaged during sterilization and does not deteriorate under the influence of external environment.

However, since the retort pouch foods are mainly cooked liquid foods and contain moisture, they deteriorate and decay no matter how sterilized. In order to distribute and sell such retort pouch foods, preservatives or preservatives harmful to the human body are inevitably added to the pouch contents. It has a problem that cannot but be done, and since it is packaged in a liquid form, the weight per unit packaging is heavy, so there is a disadvantage that the logistics cost is relatively high.

In order to compensate for the disadvantages of the conventional liquid retort pouch food, recently, so-called 'dry powder-type retort pouches' so that you can conveniently eat dry powder-type foods, such as raw, seafood, and enzymatic foods, for one-time use. Food is being developed and distributed.

In the case of such dry powder-type retort pouch food, pre-sterilized dry powder-type food is put inside the aluminum foil pouch, which is usually opened and closed with a 'zipper', and is distributed and sealed with a zipper. When the mouth is open with a zipper, put water, milk, etc. inside the pouch, seal the mouth with a zipper, hold and shake with your hand to mix the contents with water, then open the mouth and eat.

That is, the dry powder-type retort pouch food is distributed in the form of dry powder in the distribution stage, and finally, the consumer puts water in the pouch to make it 'porridge' and then eats it.

In addition, in general, when a cooking pouch filled with retort food, frozen food, etc. is heated in a microwave oven, the pressure inside the container is increased by water vapor generated from the contents according to the heating, and the cover film portion of the container is ruptured. At the same time, there is a problem in that the inside of the microwave oven is contaminated due to the scattering product, and there is a risk of burns to the user.

Therefore, in the prior art, in order to prevent this, a part of the cover film of the container is opened in advance or a hole is made in the cover film before heating the container, so that the internal water vapor generated during the cooking process can be discharged to the outside, thereby solving the problem of container rupture. could solve it

However, if the cover film is opened in advance in this way, the steam generated by heating in the microwave is immediately discharged to the outside of the container, so the heating effect of the contents by the steam in a high temperature state is reduced, and the problem of food texture is reduced. will cause

To improve this inconvenience, pouches that can be used in microwave ovens are being distributed, but when heated, the internal pressure of the pouch increases due to the steam generated from the food or the thermal expansion of the air inside, resulting in rupture or deformation of the pouch. There is a problem in that the food in the pouch scatters due to rupture.

The technology that is the background of the present invention is disclosed in Republic of Korea Patent Registration No. 10-2074709 (2020.02.07. Announcement).

An object of the present invention is to provide a retort pouch having a vapor outlet for discharging vapor that is automatically opened by the pressure in the pouch.

According to an embodiment of the present invention for achieving this technical problem, in a retort pouch having a vapor outlet, a plurality of vapor outlets having perforated holes formed by bonding the front and rear surfaces to the upper portion of the retort pouch, and a lower end of the retort pouch It is formed in a round shape and includes a bottom seal for standing on the floor, and the vapor outlets are respectively disposed at positions symmetrical with respect to the center of the retort pouch.

The steam outlet may include a sealing part having a predetermined size based on the perforated hole.

In the vapor outlet, when the pressure inside the retort pouch is equal to or greater than a reference value, the bonded sealing part may be opened.

A single-sided film is attached to the front or rear side of the perforated hole, and when the pressure inside the retort pouch is equal to or greater than a reference value, the single-sided film may be removed.

The vapor outlet, the size of the perforated hole is determined in proportion to the size and capacity of the retort pouch, the perforated hole may be formed in the form of a circle, an oval, a square, a rhombus, or a polygon.

As described above, according to the present invention, the contents in the retort pouch can be safely heated during cooking using a microwave oven by discharging the vapor generated inside the retort pouch to the outside after the contents inside the retort pouch are heated for an appropriate time.

In addition, it is possible to increase the heating effect and texture of food compared to the conventional method of opening a portion of the cover film of the container before heating the container so that the internal water vapor generated during the cooking process can be discharged to the outside.

1A and 1B are plan views illustrating a retort pouch according to an embodiment of the present invention.
2 is a view showing a steam outlet according to an embodiment of the present invention.
3 is a view for explaining a cross-section of a steam outlet according to an embodiment of the present invention.
4A and 4B are views for explaining another cross-section of the steam outlet according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Then, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

1A and 1B are plan views illustrating a retort pouch according to an embodiment of the present invention.

First, as shown in FIGS. 1A and 1B , the retort pouch 100 according to an embodiment of the present invention includes a vapor outlet 110 and a bottom seal 120 .

Here, the retort pouch 100 means a heat-resistant food packaging container that can be sterilized in a high-pressure sterilization pot (retort) or other sterilization device to maintain a commercial sterilization state.

In this case, the retort pouch 100 is manufactured using a laminated film, and the laminated film can change heat resistance, gas permeability, and thermal adhesion by attaching a plastic film or aluminum foil to 3 or 5 layers.

In addition, the retort pouch 100 is mainly made of polyethylene or polypropylene having a heat resistance temperature of 115° C. or higher of a material in direct contact with food.

In addition, although the shape of the retort pouch 100 is shown in a rectangular shape as shown in FIGS. 1A and 1B , it may be manufactured in a trapezoidal shape, a circular shape, or a different shape including irregularities in a part.

Next, the vapor outlet 110 is formed as a perforated hole 111 by bonding the front and rear surfaces to the upper portion of the retort pouch 100 .

At this time, the vapor outlet 110 is formed to pass through the retort pouch 100 in order to discharge the vapor inside the retort pouch 100 .

In addition, the vapor outlet 110 may be formed to be opened by the internal pressure of the retort pouch 100 .

And, the steam outlet 110 is manufactured using the Thompson processing method, and the Thomson processing method is a cutting processing method using a wooden die, laser cutting plywood, etc., or making a physical groove by bending a knife into the groove. , is used to form the vapor outlet 110 in the retort pouch 100 in the embodiment of the present invention.

At this time, although the number of vapor outlets 110 is shown as two in FIGS. 1A and 1B , the number and size of the vapor outlets 110 formed according to the area or size of the retort pouch 100 may be changed.

In addition, as shown in FIG. 1B , the vapor outlet 110 is spaced apart by 25 mm from the top of the retort pouch 100 , and is formed at a position spaced apart by 15 mm from the left and right sides of the retort pouch 100 .

At this time, although the position of the vapor outlet 110 is shown in FIG. 1B , the installation position may be changed according to the size of the retort pouch 100 .

In addition, as shown in FIGS. 1A and 1B , although the steam outlet 110 has been described as being formed in an annular shape, the steam outlet 110 may be formed in a plurality of shapes.

Next, the bottom seal 120 is formed in a round shape to vertically stand the retort pouch 100 from the bottom.

In addition, as shown in FIG. 1B , the bottom seal 120 is formed to be spaced apart by 10 mm from the lower surface of the retort pouch 100 .

Accordingly, the retort pouch 100 according to the embodiment of the present invention includes a plurality of vapor outlets 110 and a bottom seal 120 .

Hereinafter, a steam outlet according to an embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4B .

2 is a view showing a steam outlet according to an embodiment of the present invention.

As shown in FIG. 2 , the vapor outlet 110 according to an embodiment of the present invention includes a perforated hole 111 , a single-sided film 112 and a sealing portion 113 .

First, the perforated hole 111 may be manufactured to pass through the retort pouch 100 to discharge the vapor inside the retort pouch 100 .

In addition, the perforated hole 111 is opened when the pressure inside the retort pouch 100 is equal to or greater than a reference value to discharge steam.

At this time, the pressure reference value inside the retort pouch 100 may be changed according to the contents contained in the retort pouch 100 .

In addition, the perforated holes 111 may have different sizes depending on the capacity of the retort pouch 100 .

In addition, the size of the perforated hole 111 is determined in proportion to the size and capacity of the retort pouch 100 , and the form of the perforated hole 111 may be formed in the form of a circle, an oval, a square, a rhombus, or a polygon.

Next, the single-sided film 112 may be attached to the front or rear surface of the perforated hole 111 , and when the pressure inside the retort pouch 100 is equal to or greater than the reference value, the single-sided film 112 is removed.

Also, the single-sided film 112 may be attached at a position where the front and rear surfaces of the retort pouch 100 are bonded.

At this time, the single-sided film 112 is a synthetic resin film such as polyester, polypropylene, polyamide, etc., or a known synthetic film such as a coating film or vapor deposition film in which gas barrier properties or moisture barrier properties are imparted to these synthetic resin films. It may be formed by laminating a resin film or laminating paper or aluminum foil on a synthetic resin film.

That is, the single-sided film 112 is formed of a material that can be easily removed according to pressure.

Next, the sealing part 113 bonds the front and back surfaces of the retort pouch 100 using an adhesive or a compression method, and is formed in a predetermined size based on the outer edge of the single-sided film 112 .

At this time, as shown in FIG. 2 , the sealing part 113 is shown to be formed in a size of 4 mm based on the outer portion of the single-sided film 112 , but the size of the retort pouch 100 and the retort pouch 100 are formed inside. It may be formed in different sizes depending on the applied pressure.

At this time, the sealing part 113 is manufactured so that the joined portion can be separated by the pressure formed inside the retort pouch 100 .

3 is a view for explaining a cross-section of a steam outlet according to an embodiment of the present invention.

That is, as shown in Figure 3, the steam outlet 110 includes a perforated hole 111 of the same size on the front and rear, respectively.

At this time, as shown in FIG. 3, the perforated hole 111 is manufactured to allow steam or air to pass therethrough.

Here, although not shown in FIG. 3 , different sizes may be formed on the front or rear surface of the perforated hole 111 .

4A and 4B are views for explaining another cross-section of the steam outlet according to an embodiment of the present invention.

As shown in FIGS. 4A and 4B , the vapor outlet 110 may have a single-sided film 112 attached to the front or rear surface of the retort pouch 100 .

In this case, the single-sided film 112 may be installed together in the perforated hole 111 .

In addition, as shown in FIGS. 4A and 4B , when the pressure inside the retort pouch 100 increases, the sealing part 113 falls based on the central dotted line of the front and back sides, and the cross section installed in the perforated hole 111 The film 112 is also removed.

Then, the vapor inside the retort pouch 100 is discharged through the perforated hole 111 from which the single-sided film 112 is removed.

As described above, according to an embodiment of the present invention, the contents in the retort pouch can be safely heated during cooking using a microwave oven by discharging the vapor generated inside the retort pouch to the outside after the contents inside the retort pouch are heated for an appropriate time. have.

In addition, it is possible to increase the heating effect and texture of food compared to the conventional method of opening a portion of the cover film of the container before heating the container so that the internal water vapor generated during the cooking process can be discharged to the outside.

On the other hand, when the retort pouch 100 having a vapor outlet according to the present invention is displayed on a display stand, dust may easily adhere to the outer surface, which in turn leads to a decrease in purchase motivation, and thus cannot exhibit original commercial properties. problems will arise. Therefore, as a method for preventing this, the present invention intends to propose a dust reduction means for suppressing the generation of organic halogen compounds and nitrogen oxides present on the outer surface of the retort pouch 100 .

As the dust reduction means, the retort pouch 100 includes a coating film provided on the outer surface, and the coating film is prepared by mixing a functional additive in a solvent, and the functional additive is a binder 100 parts by weight, titanium tetra isopropoxide 12 Parts by weight, platinum ion 0.3 parts by weight, polyphenylmethylsiloxane 12 parts by weight, polydimethoxysilane 40 parts by weight, polychlorinated phosphonitrile 5 parts by weight, isotope 3.8 parts by weight, 2 parts by weight of apatite carbonate, 0.1 parts by weight of calcium phosphate and 0.1 parts by weight of hydroxyapatite.

Looking at each configuration, silicon alkoxide may be used as the binder, and the content of each composition of the functional additive is based on 100 parts by weight of the binder.

Next, the titanium tetra isopropoxide is a precursor of titanium dioxide, which is stirred with platinum ions to be described later to reduce the energy gap between the conduction band and the balance band of titanium dioxide to produce platinum-titanium dioxide.

Therefore, platinum-titanium dioxide can create an active state not only in the ultraviolet region but also in the visible region, and in the active state, electrons and holes move to the surface and combine with oxygen and hydroxyl groups to form radicals, respectively, to form nitrogen oxides and organic halogen compounds The back can be removed.

In addition, titanium tetra isopropoxide having a formula of ((CH3)2CHO)2Ti(C5H7O2)2 may be used, and the titanium tetra isopropoxide contains 12 parts by weight and is used in an amount of less than 12 parts by weight. It cannot effectively remove nitrogen oxides, organic halogen compounds, and the like, and when used in excess of 12 parts by weight, it is difficult to form a narrow energy band gap.

Next, platinum ions are stirred with the titanium tetra isopropoxide to produce platinum-titanium dioxide, and can be obtained from chloroplatinic acid or the like, and the stirring process can be performed according to a conventional method. These platinum ions contain 0.3 parts by weight, and when used in less than 0.3 parts by weight, it is not possible to effectively reduce the energy band interval of platinum-titanium dioxide, and when used in excess of 0.3 parts by weight, it is not economical.

Next, polyphenylmethylsiloxane is stirred with the above-mentioned platinum-titanium dioxide to inhibit the active state of platinum-titanium dioxide, and when immersed, the platinum-titanium dioxide prevents rapid oxidation of other components. , it is preferable to add the same amount as platinum-titanium dioxide.

Next, polydimethoxysilane and polychlorinated phosphonitrile are used as substances that decompose the polyphenylmethylsiloxane, and are added after stirring platinum-titanium dioxide and polyphenylmethylsiloxane, and the polyphenylmethylsiloxane Platinum-titanium dioxide, whose active state was suppressed while decomposing slowly, can perform oxidation after immersion is completed. And it is preferable that 40 parts by weight of this polydimethoxysilane and 5 parts by weight of polychlorinated phosphonitrile are used, and when using less than 40 parts by weight and 5 parts by weight, respectively, the decomposition rate of the polyphenylmethylsiloxane is too high It may slow down and lead to a decrease in the oxidation power of platinum-titanium dioxide, and when used in excess of 40 parts by weight and 5 parts by weight, respectively, the decomposition rate of the polyphenylmethylsiloxane is too fast, which adversely affects physical properties due to the strong oxidizing power of platinum-titanium dioxide can affect

Next, isoto is added to increase emulsion stability, and it is preferable to use 3.8 parts by weight, but when using less than 3.8 parts by weight, the emulsification cannot be improved, and when used in excess of 3.8 parts by weight In this case, economic feasibility and deterioration of physical properties may occur.

Next, carbonate apatite, calcium phosphate and hydroxyapatite are substances that soften or dissolve in an acidic atmosphere, and before the functional additive comes into contact with an acidic dye having an acidic atmosphere applied to the outer surface of the housing 1, etc., the carbonate Apatite, calcium phosphate and hydroxyapatite wrap isotope that can have a harmful effect on humans (strong irritation, etc. if it enters the eyes, etc.) to protect workers, and after the functional additive comes into contact with acid dyes, etc. As carbonate apatite, calcium phosphate, and hydroxyapatite soften or decompose, the emulsion stability effect of the isoto can be exhibited. And 2 parts by weight of carbonate apatite, 0.1 parts by weight of calcium phosphate, and 0.1 parts by weight of hydroxyapatite may be included. When used in less than the above range, it is difficult to suppress the harmful properties of the isoto, and it is used in excess of the above range. In this case, it becomes difficult to obtain the effect of enhancing the emulsification of the isoto. Of course, at this time, the dye applied to the housing 1 should be an acid dye.

The present invention described above with reference to the accompanying drawings is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

100: retro pouch, 110: vapor outlet,
111: perforated hole, 112: single-sided film,
113: sealing part, 120: bottom seal

Claims (4)

In the retort pouch having a vapor outlet,
A plurality of vapor outlets with perforated holes formed by bonding the front and rear surfaces to the upper part of the retort pouch, and
It is formed in a round shape at the lower end of the retort pouch and includes a bottom seal for standing on the floor,
The steam outlet is
They are respectively disposed at positions symmetrical with respect to the center of the retort pouch,
The steam outlet is
When the pressure inside the retort pouch is greater than or equal to the reference value, the bonded sealing part is opened,
The perforated hole is
A single-sided film is attached to the front or back side, and when the pressure inside the retort pouch is greater than or equal to a reference value, the single-sided film is removed,
The steam outlet is
The size of the perforated hole is determined in proportion to the size and capacity of the retort pouch, and the perforated hole is formed in an oval shape,
The retort pouch is manufactured using a laminated film, and the laminated film is composed of three or five layers of plastic film or aluminum foil,
In the retort pouch, polypropylene having a heat resistance temperature of 115° C. or higher of a material in direct contact with food is used,
The steam outlet is
It is spaced apart by 25 mm from the top of the retort pouch, and is formed at a position spaced apart by 15 mm from the left and right sides of the retort pouch,
The bottom seal is formed to be spaced apart by 10 mm from the lower surface of the retort pouch,
The vapor outlet includes a perforated hole, a single-sided film and a sealing portion,
The single-sided film is composed of a synthetic resin film made of a synthetic resin film made of polyester, polypropylene and polyamide laminated with a synthetic resin film made of a coating film imparting gas barrier properties,
The sealing part joins the front and back surfaces of the retort pouch using a compression method,
The sealing part is formed in a size of 4 mm based on the outer edge of the single-sided film Retort pouch, characterized in that.
In the retort pouch having a vapor outlet,
A plurality of vapor outlets with perforated holes formed by bonding the front and rear surfaces to the upper part of the retort pouch, and
It is formed in a round shape at the lower end of the retort pouch and includes a bottom seal for standing on the floor,
The steam outlet is
It is disposed on the right side based on the center of the retort pouch,
Further comprising a dust reducing means for suppressing the generation of organic halogen compounds and nitrogen oxides present on the outer surface of the retort pouch,
As the dust reduction means, the retort pouch includes a coating film provided on the outer surface, the coating film is prepared by mixing a functional additive in a solvent, and the functional additive is 100 parts by weight of a binder, 12 parts by weight of titanium tetra isopropoxide , 0.3 parts by weight of platinum ion, 12 parts by weight of polyphenylmethylsiloxane, 40 parts by weight of polydimethoxysilane, 5 parts by weight of polychlorinated phosphonitrile, 3.8 parts by weight of isoto, 2 parts by weight of apatite carbonate, 0.1 parts by weight of calcium phosphate, and , Retort pouch comprising 0.1 parts by weight of hydroxyapatite. delete delete

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