JP2002210858A - Pouch for retort - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouch for a retort which is excellent in heat resistance, pressure resistance, water resistance, heat-sealing properties, resistance to a pinhole and piercing and other physical properties and in barrier properties of checking permeation of oxygen gas, water vapor or the like, transparency and others in particular, which withstands heat treatment accompanying processing, such as retort treatment, reduces the weight, the volume and others of the rubbish of containers and packages and also reduces the manufacturing cost by shortening the manufacturing process therefor, which is useful for filling and packaging cooking foodstuff, marine paste products, frozen food, boiled food, rice cake, liquid soup, seasonings and other various food and drink, for instance, and which is excellent in suitability for filling or packaging the contents, properties of preserving the quality thereof, etc. SOLUTION: A laminate prepared by laminating sequentially a base of barrier properties having an evaporated film of an inorganic oxide provided on one surface of a base film, a resin layer of barrier properties and a heat-sealing resin layer, at least, is made into a bag, so as to provide the pouch for the retort.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retort pouch, and more particularly, to heat resistance, pressure resistance, water resistance, and heat resistance.
Excellent in various properties such as sealability, pinhole resistance, puncture resistance, etc., especially excellent in barrier properties to prevent the transmission of oxygen gas, water vapor, etc., transparency, etc., and in retort treatment etc. Withstands the heat treatment associated with processing, and further reduces the manufacturing cost by shortening the manufacturing process by reducing the weight and weight of containers and packaging waste. Boiled food, mochi, liquid soup,
The present invention relates to a pouch for retorts that is useful for filling and packaging various foods and drinks such as seasonings and others, and is excellent in filling and packaging suitability of its contents, quality preservation, and the like.

[0002]

2. Description of the Related Art Conventionally, plastic films, metal foils,
One or more kinds of cellophane, etc. are laminated to produce a laminated material, and then the laminated material is used, and the laminated material is made into a bag to produce a bag-shaped container body. The container body is filled with desired food or drink and the like, and then the packaged semi-finished product is subjected to pressure and heat sterilization at 110 ° C. to 130 ° C. for about 30 to 50 minutes to produce retort foods of various forms. Have been. Thus, specifically, for example, as a laminated material for producing a retort pouch of a transparent specification, for example, a biaxially stretched polyamide-based material having a thickness of 15 μm is used as the laminated material constituting the bag-shaped container body. 2 of resin film and unstretched polypropylene film having a thickness of 50 to 80 μm
Or a three-layer laminate of a biaxially stretched polyester resin film having a thickness of 12 μm, a biaxially stretched polyamide resin film having a thickness of 15 μm, and an unstretched polypropylene film having a thickness of 50 to 80 μm Etc. are known. Further, as a laminated material for manufacturing a retort pouch having a barrier property specification, for example, a 2 μm-thick 2 μm
Laminated material consisting of three layers of an axially stretched polyester resin film, an aluminum foil having a thickness of 7 to 9 μm and a non-stretched polypropylene film having a thickness of 50 to 80 μm, or a biaxially stretched polyester resin film having a thickness of 12 μm Laminated materials comprising four layers of an aluminum foil having a thickness of 7 to 9 μm, a biaxially stretched polyamide resin film having a thickness of 15 μm, and a non-stretched polypropylene film having a thickness of 50 to 80 μm are known. Further, as a laminated material having a barrier property and producing a transparent retort pouch, for example, a biaxially stretched polyester resin film having a thickness of 12 μm and a polyvinylidene chloride resin film having a thickness of 10 to 20 μm can be used. And a laminated material composed of three layers of a non-stretched polypropylene film having a thickness of 50 to 80 μm, or a thickness of 15 μ
m biaxially stretched polyamide resin film and thickness 10 to 2
0 μm polyvinylidene chloride resin film and thickness 50
Laminated materials composed of three layers of a non-stretched polypropylene film having a thickness of up to 80 μm are known. The laminated material having the above configuration has excellent strength both physically and chemically, and furthermore, is excellent in filling and packaging of contents, quality preservation, etc. It is manufactured using a bag-shaped container body manufactured by manufacturing a laminated material having specifications.

[0003]

However, in the case of using a metal foil such as an aluminum foil as a barrier material in a laminated material having the above-mentioned specifications, it has excellent barrier properties and a light shielding property. Although it is very useful because it has, metal foils such as aluminum foil,
Due to lack of bending resistance, there is a problem that pinholes are liable to occur and the barrier properties thereof are significantly impaired.
Further, when used as a packaging container and then discarded as garbage, for example, when discarded by incineration, etc., metals such as aluminum remain, which may damage the incinerator and lack its suitability for disposal. There is a problem that it causes problems such as environmental destruction and lacks environmental suitability. When a polyvinylidene chloride-based resin film is used as a barrier material, it has an expected effect on gas barrier properties for preventing permeation of oxygen gas, water vapor, etc., but is used as a packaging container. Later, when this is disposed of as garbage, for example, if disposed of by incineration, etc., because it contains chlorine atoms,
At the time of incineration disposal, for example, it causes toxic gas such as dioxin, etc., and there is concern about the effects on the human body.Therefore, it is not suitable for disposal and causes problems such as environmental destruction. There is also a problem of lacking. Further, in the laminated material as described above, a polyvinylidene chloride-based resin film as a barrier material has a large thickness,
Further, a metal foil such as an aluminum foil has a problem that it has a large thickness and a large weight, and lacks in weight reduction and weight reduction of containers and packaging waste. Therefore, the present invention provides heat resistance,
Excellent in various physical properties such as pressure resistance, water resistance, heat sealability, pinhole resistance, puncture resistance, etc. Especially, it has excellent barrier properties to prevent the transmission of oxygen gas and water vapor, transparency, etc. Excellent and withstands heat treatment accompanying processing such as retort processing,
Furthermore, the weight of containers and packaging waste is reduced, the weight is reduced, and the manufacturing cost is reduced by shortening the manufacturing process. An object of the present invention is to provide a pouch for retort that is useful for filling and packaging various foods and beverages such as foods, seasonings, and others, and is excellent in the filling and packaging suitability of its contents, quality preservation, and the like.

[0004]

The present inventors have conducted various studies to solve the above problems, and as a result, have found that a barrier substrate having an inorganic oxide vapor-deposited film provided on one surface of a substrate film. And a barrier resin layer, first, at least a barrier substrate having an inorganic oxide vapor-deposited film provided on one surface of the substrate film, a barrier resin layer, and a heat-sealing resin. The layers are successively laminated to produce a laminated material, and then the laminated material is used to form a bag to produce a bag-shaped container body. To produce a semi-finished package, and then the semi-finished package is subjected to temperature,
110 ° C ~ 130 ° C, pressure, 1-3Kgf / cm ² ·
When retort treatment such as heat and pressure sterilization treatment was performed under the conditions of G position, time and about 20 to 60 minutes to produce a retort food, heat resistance, pressure resistance, water resistance, heat sealability, pinhole resistance -Excellent physical properties such as resistance, piercing resistance, etc.
In particular, barrier properties to prevent the transmission of oxygen gas, water vapor, etc.
Excellent transparency, withstands heat treatment associated with retort treatment, etc., and further reduces the weight of containers and packaging garbage, reduces the amount of waste, and reduces the manufacturing cost by shortening the manufacturing process. Planning, for example, cooked foods, seafood kneaded products, frozen foods, boiled rice cakes, mochi, liquid soup, seasonings, useful for filling and packaging various foods and beverages, and,
The present invention has been completed by finding that a pouch for retort which is excellent in the suitability for filling and packaging of the contents and the quality preserving property can be produced.

That is, the present invention provides at least a barrier substrate having an inorganic oxide vapor-deposited film provided on one surface of a substrate film, a barrier resin layer, and a heat-sealing resin layer. The present invention relates to a pouch for a retort, which is made by sequentially laminating laminated materials.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The retort pouch according to the present invention will be described in more detail with reference to the drawings. First, the layer configuration of the laminated material constituting the retort pouch according to the present invention will be described with reference to the drawings by exemplifying a few of them. FIGS. 1, 2 and 3 show the retort pouch according to the present invention. FIG. 6 is a schematic cross-sectional view showing the layer structure of a few examples of the laminated material,
FIG. 2 is a schematic perspective view showing an example of a configuration of a pouch for a retort according to the present invention manufactured by using the laminated material shown in FIG. 1 and making a bag.

First, as a laminated material A constituting a retort pouch according to the present invention, as shown in FIG. 1, at least one surface of a substrate film 1 is provided with a barrier film 2 on which an inorganic oxide vapor-deposited film 2 is provided. The basic structure is that the conductive base material 3, the barrier resin layer 4, and the heat-sealing resin layer 5 are sequentially laminated. As a specific example of the laminated material constituting the retort pouch according to the present invention, as shown in FIG. 2, at least one surface of the base film 1 is coated with the deposited film 2 of the inorganic oxide. A laminate having a configuration in which the provided barrier base material 3, the barrier resin layer 4, and the heat-sealing resin layer 5 are dry-laminated via the laminating adhesive layers 6, 6a. it can be exemplified wood a _1. Further, as another specific example of the laminated material constituting the retort pouch according to the present invention, as shown in FIG. 3, as shown in FIG. a barrier substrate 3 provided, the barrier resin layer 4, heat - city - and Le resin layer 5, the laminate a ₂ having the structure obtained by melt extrusion laminated through a melt-extruded resin layer 7,7a Examples can be given.

The above examples illustrate only a few examples of the laminated material constituting the retort pouch according to the present invention, and the present invention is not limited thereto. For example, although not shown, as a laminate constituting the retort pouch according to the present invention, at least a barrier substrate having an inorganic oxide deposited film on one surface of a substrate film, and a barrier resin layer When sequentially laminating the heat-sealing resin layer with the heat-sealing resin layer, the lamination can be performed by arbitrarily combining a dry laminating laminating method or a melt extrusion laminating method. Although not shown, in the present invention, as a laminated material constituting the retort pouch according to the present invention shown in FIG. 3 described above, a heat-sealing resin layer is melt-extruded via a melt-extruded resin layer. Instead of laminating, heat-seal with a melt-extruded resin layer.
It can also be used as a conductive resin layer. Further, although not shown, in the present invention, as a laminated material constituting the retort pouch according to the present invention, at least one side of the base film is laminated with a barrier base material provided with an inorganic oxide vapor-deposited film. In order to improve the tight adhesion on the surface of the deposited film of the inorganic oxide constituting the barrier base material and improve the lamination strength thereof, a primer agent layer such as a primer agent is used in advance. And the like, and then laminating a barrier resin layer or a heat-sealing resin layer to produce a laminated material. Although not shown,
In the present invention, when laminating using the above-mentioned melt extrusion lamination method or the like, similarly to the above, in order to increase tight adhesion and improve the lamination strength, etc., an anchor with an anchor coating agent or the like is used. -It is also possible to produce a laminated material by forming a coating agent layer. In addition, for example, although not shown in the present invention, it is possible to design and manufacture a laminated material having various forms by arbitrarily laminating other base materials according to the purpose of use, application, and the like. Things. Further, for example, although not shown, in the present invention, the inorganic oxide vapor-deposited film includes not only a single layer film composed of one layer of the inorganic oxide vapor-deposited film but also two or more inorganic oxide vapor-deposited films. It can also be composed of a multilayer film or the like.

Next, in the present invention, an example of the retort pouch according to the present invention, which is manufactured by using the above-described laminated material and making a bag, will be described. As a pouch for retort,
For example, a retort pouch made by using the laminated material A shown in FIG. 1 will be described as an example. As shown in FIG. 4, two laminated materials A and A are prepared. The surfaces of the heat-sealing resin layers 5 and 5 located in the inner layer are superposed on each other, and thereafter, three sides of the outer peripheral edge are heat-sealed to form the seal portions 8 and 8. , 8 and an opening 9 is provided above it to manufacture a three-way seal-type bag-shaped container body B. Thus, in the present invention, as shown in FIG. 5, for example, a curry, a stew, and a soot can be opened through the opening 9 of the three-way seal-type bag-shaped container body B.
Contents 10 of desired foods and drinks such as lamps, meat sources, hamburgers, meat balls, sweet potatoes, oden, etc.
Then, the upper opening 9 is heat-sealed to form an upper seal portion 11 and the like to produce a packaged semi-finished product C. Thereafter, the packaged semi-finished product C is , Temperature, 11
Manufacturing retort foods D in various forms by subjecting them to retort treatment such as pressurized heat sterilization at about 0 ° C. to 130 ° C. under a pressure of about 1 to 3 Kgf / cm ² · G for about 20 to 60 minutes. Can be done. In the present invention, it goes without saying that the retort pouch according to the present invention is not limited to the above-illustrated pouch shape, and a three-way seal may be used depending on the purpose and use. It goes without saying that a bag-shaped container body having various forms such as a mold, a self-supporting mold, a gusset mold, a square bottom mold, and the like can be manufactured. In the present invention, the pouch for a retort according to the present invention can be produced in the same manner as described above, using the laminated material shown in FIGS.

Next, in the present invention, the material, material, manufacturing method and the like constituting the retort pouch according to the present invention will be described. First, in the laminated material constituting the retort pouch according to the present invention, As the base film forming the barrier base material constituting the, as these are the basic materials constituting the pouch for retort, further, since it is a base material holding a deposited film of inorganic oxide, etc.
First, it has excellent physical properties such as heat resistance, slipperiness, pinhole resistance, and other properties against heating, workability, etc., during bag making, and withstands the formation conditions of inorganic oxide deposited films, etc.
In addition, various resin films capable of satisfying such conditions that they can be favorably retained without deteriorating their properties and other conditions can be used. In the present invention, as the resin film, specifically, for example, a polyolefin resin such as a polyethylene resin or a polypropylene resin, a cyclic polyolefin resin, a polystyrene resin, an acrylonitrile-styrene copolymer (AS resin) Polyester resins such as acrylonitrile-butadiene-styrene copolymer (ABS resin), poly (meth) acrylic resin, polycarbonate resin, polyethylene terephthalate, polyethylene naphthalate, etc. Polyamide resin such as nylon,
Films or sheets of various resins such as polyurethane resins, acetal resins, cellulose resins, and others can be used. In the present invention, among the above resin films, it is particularly preferable to use a film or sheet of a polyester resin, a polyolefin resin, or a polyamide resin.

In the present invention, as the above-mentioned various resin films, for example, one or more of the above-mentioned various resins are used, and are extruded, cast-molded, T-die, cut, inflation. Method, using a film forming method such as other, a method of forming a film of the above various resins alone,
Alternatively, a multi-layer co-extrusion film forming method using two or more kinds of resins, and a method of mixing and forming a film before forming a film using two or more resins. ,
Various resin films or sheets are manufactured, and if necessary, various types of films stretched in a uniaxial or biaxial direction by using, for example, a tenter system or a tuber system. A resin film or sheet can be used. In the present invention, the thickness of the various resin films described above is about 6 to 200 μm, more preferably 9 to 200 μm.
About 100 μm is desirable.

When one or more of the above various resins are used and the film is formed, for example, the processability, heat resistance, weather resistance, mechanical properties, dimensional stability,
For the purpose of improving or modifying the antioxidant properties, slip properties, mold release properties, flame retardancy, anti-mold properties, electrical properties, strength, etc., various plastic additives and additives can be added. Can,
The addition amount can be arbitrarily added from a very small amount to several tens% depending on the purpose. In the above, as a general additive, for example, a lubricant, a crosslinking agent,
An antioxidant, an ultraviolet absorber, a light stabilizer, a filler, a reinforcing agent, an antistatic agent, a pigment, and the like can be used, and further, a modifying resin and the like can be used.

In the present invention, the surface of various resin films may be provided with a desired surface treatment layer in advance, if necessary, in order to improve, for example, the tight adhesion with the inorganic oxide deposition film. Can be done. In the present invention, as the surface treatment layer, for example, a corona discharge treatment, an ozone treatment, a low-temperature plasma treatment using an oxygen gas or a nitrogen gas, a glow discharge treatment, an oxidation treatment using a chemical or the like, Pretreatment such as others can be arbitrarily performed, and for example, a corona treatment layer, an ozone treatment layer, a plasma treatment layer, an oxidation treatment layer, and the like can be formed and provided. The above surface pretreatment is performed as a method for improving the tight adhesion between the various resin films and the inorganic oxide vapor-deposited film, and the like. For example, a primer coat agent layer, an undercoat agent layer, an anchor coat agent layer, an adhesive layer, or a vapor-deposited anchor coat agent may be previously formed on the surface of various resin films. The surface treatment layer may be formed by arbitrarily forming a layer or the like. As the coating agent layer of the above pretreatment,
For example, polyester resin, polyamide resin, polyurethane resin, epoxy resin, phenol resin,
A resin composition containing a (meth) acrylic resin, a polyvinyl acetate resin, a polyolefin resin such as polyethylene aliha polypropylene or a copolymer or modified resin thereof, a cellulose resin, or the like as a main component of a vehicle. Can be used.

Next, in the present invention, in the laminated material forming the pouch for a retort according to the present invention, a vapor-deposited film of an inorganic oxide forming a barrier substrate constituting the laminated material will be described. Examples of the inorganic oxide deposited film include a physical vapor deposition method such as a vacuum deposition method, a sputtering method, an ion plating method, and an ion cluster beam method.
It can be formed using an oxidation method or a PVD method. In the present invention, specifically, a metal oxide is used as a raw material, and a vacuum evaporation method in which the metal oxide is heated and vapor-deposited on a substrate film, or a metal or a metal oxide is used as a raw material, and oxygen is used. An amorphous thin film of an inorganic oxide is formed using an oxidation reaction deposition method of introducing and oxidizing and depositing on a base film, and a plasma-assisted oxidation reaction deposition method of further assisting the oxidation reaction with plasma. be able to. In the above, as a heating method of the evaporation material, for example, a resistance heating method, a high-frequency induction heating method, an electron beam heating method (EB), or the like can be used.

In the present invention, as the above-mentioned inorganic oxide vapor-deposited film, basically, any thin film on which a metal oxide is vapor-deposited can be used.
i), aluminum (Al), magnesium (Mg),
Calcium (Ca), potassium (K), tin (Sn),
Sodium (Na), boron (B), titanium (Ti),
A vapor-deposited film of an oxide of a metal such as lead (Pb), zirconium (Zr), or yttrium (Y) can be used. Thus, preferred are silicon (Si),
An example is a deposited film of an oxide of a metal such as aluminum (Al). Thus, the above-described vapor-deposited film of a metal oxide can be referred to as a metal oxide such as silicon oxide, aluminum oxide, and magnesium oxide. The notation is, for example, SiO _x , AlO _x , MO _X (However, as such MgO _X, wherein, M represents a metal element,
The range of the value of X differs depending on the metal element. )
It is represented by The range of the value of X is 0 to 2 for silicon (Si) and 0 to 2 for aluminum (Al).
1.5, magnesium (Mg) is 0-1, calcium (Ca) is 0-1, potassium (K) is 0-0.5,
Tin (Sn) is 0-2, and sodium (Na) is 0-2.
0.5, boron (B) is 0-1,5, titanium (Ti)
Is 0-2, lead (Pb) is 0-1, zirconium (Z
r) can have a value in the range of 0 to 2 and yttrium (Y) can have a value in the range of 0 to 1.5. In the above, when X = 0, it is a perfect metal, it is not transparent and cannot be used at all, and the upper limit of the range of X is a completely oxidized value. In the present invention, generally, silicon (S
i), except for aluminum (Al), few examples are used. Silicon (Si) has a value in the range of 1.0 to 2.0, and aluminum (Al) has a value in the range of 0.5 to 1.5. Can be used. In the present invention, the thickness of the inorganic oxide deposited film as described above, depending on the type of metal used, or metal oxide, etc., for example,
About 50-4000 °, preferably 100-1000 °
It is desirable to arbitrarily select and form within the range of the order.
In the present invention, the metal to be used as the inorganic oxide deposition film or the metal oxide is
It is also possible to use a mixture of two or more species, and to form a deposited film of an inorganic oxide mixed with different materials.

Next, in the present invention, a specific example of a method for forming the above-mentioned vapor-deposited film of inorganic oxide will be described. FIG. 6 is a schematic configuration diagram showing an example of a roll-up type vacuum vapor deposition apparatus. . As shown in FIG. 6, an unwinding roll is placed in a vacuum chamber 22 of a take-up type vacuum evaporation apparatus 21.
The base film 24 unwound from the roll 23 is cooled by a cooled coating drum 27 via guide rolls 25 and 26.
Will be guided to. Then, on the base film 24 guided on the cooled coating drum 27, the evaporation source 29 heated by the crucible 28, for example, metal aluminum or aluminum oxide is evaporated. Further, if necessary, an oxygen gas or the like is ejected from the oxygen gas outlet 30 and a vapor-deposited film of an inorganic oxide such as aluminum oxide is formed through the masks 31 while supplying the gas. Things. Then, in the present invention,
In the above, for example, the base film 24 on which a deposited film of an inorganic oxide such as aluminum oxide is formed is taken up on a take-up roll 34 and the like via guide rolls 32 and 33 and the inorganic film according to the present invention. The base film 24 having the oxide deposited film can be manufactured. The above exemplification is merely an example, and it goes without saying that the present invention is not limited thereby. In the present invention, first, a first-layer inorganic oxide vapor-deposited film is formed using the above-mentioned winding vacuum vapor deposition apparatus, and then, similarly, the inorganic oxide vapor-deposited film is formed. On top of that, further form an inorganic oxide deposited film,
Alternatively, by using the above-mentioned roll-up type vacuum evaporation apparatus and connecting them in series, and continuously forming an inorganic oxide evaporation film, the inorganic oxide composed of a multilayer film of two or more layers is formed. An object deposited film can be formed.

Further, in the present invention, the above-mentioned inorganic oxide vapor-deposited film can be formed by, for example, a chemical vapor deposition method or the like. Chemical vapor deposition methods such as chemical vapor deposition and photochemical vapor deposition
It can be formed by a method such as a position method or a CVD method. More specifically, on one side of the base film,
Low-temperature plasma generation using a monomer gas for vapor deposition of an organic silicon compound or the like as a raw material, an inert gas such as an argon gas or a helium gas as a carrier gas, and an oxygen gas or the like as an oxygen supply gas. A deposited film of an inorganic oxide such as silicon oxide can be formed by a low-temperature plasma chemical vapor deposition method using an apparatus or the like. In the above,
As the low-temperature plasma generator, for example, a high-frequency plasma, a pulsed-wave plasma, a generator such as a microwave plasma can be used, and in the present invention,
In order to obtain highly active and stable plasma, it is desirable to use a generator based on a high-frequency plasma method.

More specifically, an example of a method for forming a deposited film of an inorganic oxide by the above-described low-temperature plasma enhanced chemical vapor deposition method will be described. FIG. 1 is a schematic configuration diagram of a low-temperature plasma chemical vapor deposition apparatus showing an outline of a method of forming an oxide deposition film. As shown in FIG. 7 described above, in the present invention, the vacuum chamber of the plasma enhanced chemical vapor deposition apparatus 41 is used.
The base film 44 is fed out from the unwinding roll 43 disposed in the inside 42, and the base film 44 is further cooled at a predetermined speed via the auxiliary roll 45 by the cooling / electrode drum 46.
Convey on the peripheral surface. Thus, in the present invention, oxygen gas, an inert gas, a monomer gas for vapor deposition of an organic silicon compound or the like, and the like are supplied from the gas supply devices 47 and 48 and the raw material volatilization supply device 49 and the like. While adjusting the mixed gas composition for vapor deposition, the mixed gas composition for vapor deposition was introduced into the vacuum chamber 42 through the raw material supply nozzle 50, and was conveyed onto the peripheral surface of the cooling / electrode drum 46 described above. Plasma is generated by the glow discharge plasma 51 on the base film 44 and is irradiated with the plasma to form a deposited film of an inorganic oxide such as silicon oxide, thereby forming a film.
In the present invention, the cooling / electrode drum 46
A predetermined power is applied from a power source 52 disposed outside the chamber, and a magnet 53 is disposed near the cooling / electrode drum 46 to promote the generation of plasma. The base film 44 on which the deposited film of the inorganic oxide such as silicon oxide is formed is guided by a guide rod.
Take-up roll 55 etc.
A substrate film having a deposited film of the inorganic oxide according to the present invention can be produced. In the figure, reference numeral 56 denotes a vacuum pump. The above exemplification is merely an example, and it goes without saying that the present invention is not limited thereby. Although not shown, in the present invention, the deposited film of the inorganic oxide is not limited to one layer of the deposited film of the inorganic oxide, and may be a multilayer film in which two or more layers are stacked. The materials may be used alone or as a mixture of two or more kinds, and a vapor-deposited film of an inorganic oxide mixed with different materials may be used.

In the above, the inside of the vacuum chamber is
The pressure is reduced by a pump and the degree of vacuum is 1 × 10 ^-1~ 1 × 10^-8To
rr position, preferably vacuum degree 1 × 10^-3~ 1 × 10^-7T
It is desirable to prepare at the orr position. Also,
In the raw material volatile supply device, the organic silicon compound
Oxygen gas supplied from a gas supply device,
It is mixed with an inert gas, etc., and this mixed gas is
Through a vacuum chamber into the vacuum chamber.
In this case, the content of the organic silicon compound in the mixed gas is 1
About 40%, oxygen gas content about 10-70%,
The content of active gas should be in the range of about 10-60%
For example, an organic silicon compound, oxygen gas, and inert gas
1: 6: 5 to 1:17:14
be able to. On the other hand, the cooling and electrode drum
Since a predetermined voltage is applied, the vacuum chamber
In the vicinity of the opening of the material supply nozzle and the cooling / electrode drum
A glow discharge plasma is generated and this glow discharge plasma is generated.
Is derived from one or more gas components in a gas mixture
In this state, the base film is kept constant
Transported at high speed, and cooled by glow discharge plasma.
On the substrate film on the peripheral surface of the electrode drum,
It can form a deposited film of inorganic oxide.
You. At this time, the degree of vacuum in the vacuum chamber is 1
× 10^-1~ 1 × 10^-FourTorr level, preferably vacuum degree
1 × 10^-1~ 1 × 10^-2It is desirable to prepare to the Torr position
Preferably, the transport speed of the base film is 10 to 30.
0 m / min, preferably adjusted to 50-150 m / min
It is desirable to do.

Further, in the plasma chemical vapor deposition apparatus, the formation of the deposited film of an inorganic oxide such as silicon oxide, on the substrate film, SiO _X while the plasma raw material gas is oxidized with oxygen gas Therefore, the deposited inorganic oxide film such as silicon oxide is a dense, small-gap, continuous layer with high flexibility. The barrier property of a deposited film of an inorganic oxide such as silicon is much higher than a deposited film of an inorganic oxide such as silicon oxide formed by a conventional vacuum deposition method or the like. A barrier property can be obtained. In the present invention, SiO _x
The surface of the base film is cleaned by the plasma, and a polar group or a free radical is generated on the surface of the base film. Has the advantage of having high close-adhesion. Further, as described above, the degree of vacuum when forming a continuous film of an inorganic oxide such as silicon oxide is 1 × 10 ⁻¹
１1 × 10 ⁻⁴ Torr, preferably 1 × 10 ⁻¹ to 1
Since the pressure is adjusted to about 10 ⁻² Torr, the degree of vacuum when forming a deposited film of an inorganic oxide such as silicon oxide by a conventional vacuum deposition method is about 1 × 10 ⁻⁴ to 1 × 10 ⁻⁵ Torr. Since the degree of vacuum is relatively low, the time for setting the vacuum state when exchanging the base film can be shortened, the degree of vacuum is easily stabilized, and the film forming process is stabilized.

In the present invention, a deposited silicon oxide film formed by using a vaporized monomer gas such as an organic silicon compound is chemically reacted with a vaporized monomer gas such as an organic silicon compound and oxygen gas. the reaction product is closely deposited on one surface of a substrate film, dense, and forms a thin film rich in flexibility or the like, usually, the general formula SiO _X (provided that, X
Represents a number of 0 to 2), and is a continuous thin film mainly composed of silicon oxide. Thus, from the viewpoints of transparency, barrier properties, etc., the silicon oxide deposited film of the general formula Si
O _X (provided that, X represents represents. A number of 1.3 to 1.9) is intended is preferably a thin film mainly composed of vapor-deposited film of silicon oxide represented by. In the above, the value of X changes depending on the molar ratio of the vaporized monomer gas to oxygen gas, the energy of the plasma, and the like. In general, the gas permeability decreases as the value of X decreases, but the film itself does Is yellowish,
Transparency worsens.

The above-mentioned silicon oxide deposited film is mainly composed of silicon oxide, and further contains at least one compound of one or more of carbon, hydrogen, silicon or oxygen. It is characterized by comprising a deposited film containing the kind by chemical bonding or the like. For example,
When the compound having a C—H bond, the compound having a Si—H bond, or the carbon unit is in the form of graphite, diamond, fullerene, or the like, the raw material organosilicon compound or a derivative thereof is further added. It may be contained due to chemical bonding or the like. To give a specific example, CH
Hydrocarbon with _three sites, SiH ₃ silyl, Si
Examples thereof include hydrosilica such as H ₂ silylene and hydroxyl derivative such as SiH ₂ OH silanol. In addition to the above, the type, amount, and the like of the compound contained in the deposited silicon oxide film can be changed by changing the conditions and the like of the deposition process. Thus, the content of the above compound in the deposited silicon oxide film is 0.1 to 5%.
About 0%, preferably about 5 to 20% is desirable. In the above, if the content is less than 0.1%,
Impact resistance, spreadability, flexibility, etc. of the deposited film of silicon oxide become insufficient, and due to bending, scratches, cracks, etc. are easily generated, and it becomes difficult to stably maintain high barrier properties, On the other hand, if it exceeds 50%, the barrier properties are undesirably reduced. Furthermore, in the present invention, the content of the above compound in the silicon oxide vapor deposition film is preferably reduced in the depth direction from the surface of the silicon oxide vapor deposition film, whereby the silicon oxide vapor deposition film is formed. On the surface of the above, the impact resistance and the like can be enhanced by the above-mentioned compounds and the like, while at the interface with the base film, the content of the above-mentioned compounds is small, so that the base film and the deposited film of silicon oxide Has the advantage that the tight adhesion of the polymer becomes strong.

According to the present invention, the above-mentioned silicon oxide vapor-deposited film may be, for example, an X-ray photoelectron spectrometer (Xr
ay Photoelectron Spectros
copy, XPS), secondary ion mass spectrometer (Sec.)
onion Ion Mass Spectrosc
The above physical properties are confirmed by performing elemental analysis of a deposited silicon oxide film using a method of performing analysis by ion etching in the depth direction or the like using a surface analysis device such as O.I. can do. In the present invention, the thickness of the deposited silicon oxide film is preferably about 50 to 4000 °, and specifically, about 100 to 1000 °. Then, in the above, 1000 °, furthermore, 40
When the thickness is more than 00 °, cracks and the like are easily generated in the film, which is not preferable.
If it is less than 0 °, it is not preferable because it is difficult to exhibit the effect of the barrier property. In the above description, the film thickness can be measured by a fundamental parameter method using, for example, a fluorescent X-ray analyzer (model name: RIX2000) manufactured by Rigaku Corporation. Further, in the above, as a means for changing the thickness of the deposited film of silicon oxide, increasing the volume velocity of the deposited film, that is, a method of increasing the amount of the monomer gas and the oxygen gas or the rate of the deposition. It can be performed by a method of slowing down.

Next, in the above, as a monomer gas for vapor deposition of an organic silicon compound or the like for forming a vapor deposition film of an inorganic oxide such as silicon oxide, for example, 1.1.3.3-tetramethyldisiloxane, Hexamethyldisiloxane, vinyltrimethylsilane, methyltrimethylsilane, hexamethyldisilane, methylsilane, dimethylsilane, trimethylsilane, diethylsilane, propylsilane, phenylsilane, vinyltriethoxysilane, vinyltrimethoxysilane, tetramethoxysilane, tetraethoxy Silane, phenyltrimethoxysilane, methyltriethoxysilane, octamethylcyclotetrasiloxane, and the like can be used. In the present invention, among the above-mentioned organosilicon compounds, the use of 1.1.3.3-tetramethyldisiloxane or hexamethyldisiloxane as a raw material is advantageous in handling properties and a formed continuous film. It is a particularly preferable raw material in view of its properties and the like. In the above, for example, an argon gas, a helium gas, or the like can be used as the inert gas.

Next, in the present invention, a description will be given of the barrier resin layer constituting the laminated material of the laminated material constituting the retort pouch according to the present invention. For example, a barrier resin film having a property of preventing permeation of the resin can be used. Specifically, in the present invention, for example, MXD
6 Use a film or sheet made of a barrier resin such as a nylon resin, an ethylene-vinyl alcohol copolymer, a polyvinyl alcohol resin, a polyacrylonitrile resin, or the like, or a coating film. Can be.

Specific examples of the above MXD6 nylon resin as the barrier resin include aromatic diamines such as metaxylenediamine and paraxylenediamine, adipic acid, suberic acid, sebacic acid and cyclohexanedicarboxylic acid. And a crystalline aromatic polyamide-based resin obtained by a polycondensation reaction with a dicarboxylic acid such as terephthalic acid or isophthalic acid or a derivative thereof. Specifically, for example, nylon MXD6 (trade name, manufactured by Mitsubishi Gas Chemical Co., Ltd.) can be used. In the present invention, for example, one or two or more non-crystalline polyamide-based resins composed of an aliphatic polyamide-based resin or the like are added to the above-mentioned crystalline aromatic polyamide-based resin, and both of them are added. Can be formed. Thus, examples of the aliphatic polyamide-based resin include hexamethylene diamine, decamethylene diamine, dodecamethylene diamine, 2, 2, and
Aliphatic and alicyclic diamines such as 4- or 2,4,4-trimethylhexamethylenediamine, 1,3- or 1,4-bis (aminomethyl) cyclohexane, bis (p-aminocyclohexylmethane) And aliphatic polyamides obtained by a polycondensation reaction with dicarboxylic acids such as adipic acid, suberic acid, sebacic acid, cyclohexanedicarboxylic acid, terephthalic acid and isophthalic acid or derivatives thereof, ε-aminocaproic acid, 11-aminoundecanoic acid, etc. And polyamide resins obtained from lactam compounds such as ε-caprolactam and ω-laurolactam, and mixtures thereof. Specifically, for example, nylon 6, nylon 66, nylon 9, nylon 11, nylon 12, nylon 6/66, nylon 66/610
And other aliphatic polyamide-based resins.
The compounding ratio of the above-mentioned crystalline aromatic polyamide resin and aliphatic polyamide resin is about 20 to 100% by weight of the crystalline aromatic polyamide resin, preferably 40 to 1%.
The aliphatic polyamide-based resin can be used by mixing at a mixing ratio of about 0 to 80% by weight, preferably about 0 to 60% by weight with respect to about 00% by weight.

Next, the polyvinyl alcohol-based resin as the barrier resin is generally obtained by saponifying a polyvinyl acetate-based resin, and specifically, tens of percent of the acetic acid group remains. A partially saponified polyvinyl alcohol-based resin, a completely saponified polyvinyl alcohol-based resin in which no acetic acid group remains, a modified polyvinyl alcohol-based resin in which an OH group is modified, and the like can be used. In addition, as the ethylene-vinyl alcohol copolymer as the barrier resin, generally, a saponified product of a copolymer of ethylene and vinyl acetate can be used, and specifically, for example,
It is obtained by saponifying an ethylene-vinyl acetate random copolymer, and is a partially saponified product in which an acetic acid group remains at several tens mol%, or an acetic acid group has only a few mol% remaining or an acetic acid group. A completely saponified product which does not remain can be used. Thus, in the present invention, although not particularly limited, from the viewpoint of gas barrier properties,
As a preferable saponification degree, it is preferable to use a saponified compound having a saponification degree of 80 mol% or more, more preferably 90 mol% or more, and still more preferably 95 mol% or more. In the ethylene-vinyl alcohol copolymer, the content of the repeating unit derived from ethylene in the ethylene-vinyl alcohol copolymer, that is, the ethylene content is usually 0 to 50 mol%.
%, Preferably about 20 to 45 mol%.

Further, as the polyacrylonitrile-based resin as the barrier resin, for example, a monomer such as acrylonitrile is polymerized by an emulsion polymerization method or a suspension polymerization method in the presence of a suitable initiator. Polyacrylonitrile resin or the like can be used.

In the present invention, a barrier resin such as the above-described MXD6 nylon resin, ethylene-vinyl alcohol copolymer, polyvinyl alcohol resin, polyacrylonitrile resin, and others is used. First, one or more of the barrier resins are used as a main component, and if necessary, a plasticizer, a light stabilizer, an antioxidant, an ultraviolet absorber, an antistatic agent, a crosslinking agent, and a curing agent. Additives, fillers, lubricants, reinforcing fibers, reinforcing agents, flame retardants, flameproofing agents, foaming agents, fungicides, coloring agents such as dyes and pigments, and one or more other additives. Then, if necessary, a solvent, a diluent and the like are added, and the mixture is sufficiently kneaded to prepare a resin composition. Thus, in the present invention, the resin composition prepared above is used, and for example, an extruder, a T-die extruder, a cast molding machine, an inflation molding machine, and the like are used, and the extrusion method, T A film or sheet of a barrier resin is produced by a film or sheet molding method such as a die extrusion method, a cast molding method, an inflation method, etc., and if necessary, for example, a tenter method. Alternatively, it is stretched in a uniaxial or biaxial direction by using a tuber method or the like to produce a so-called stiff barrier resin film or sheet having excellent strength. Next, in the present invention, the barrier resin film or sheet produced above is used, and the barrier resin base material film is provided with an inorganic oxide vapor-deposited film on one side of the base material film. The barrier resin layer according to the present invention can be formed on the surface of the oxide vapor-deposited film, for example, by laminating using a dry laminating lamination method or the like via a laminating adhesive layer or the like. it can. Alternatively, in the present invention, the barrier resin film or sheet produced above is used, and the barrier resin film or sheet is formed on one surface of the substrate film by an inorganic oxide vapor-deposited film. On the surface of the oxide deposited film, for example, via an anchor coat agent layer, a melt extruded resin layer, etc.
The barrier resin layer according to the present invention can be formed by laminating using a melt extrusion laminating method or the like.

Further, in the present invention, the resin composition prepared as described above is used, and the resin composition is applied to one surface of the above-mentioned base film by a melt extrusion lamination method using an extruder or the like. Forming a melt-extruded resin layer on the surface of the inorganic oxide vapor-deposited film of the barrier substrate provided with the oxide vapor-deposited film, for example, via an anchor-coat layer with an anchor-coat agent or the like. By doing so, the barrier resin layer according to the present invention can be formed. Further, in the present invention, the above-prepared resin composition is used.
Coating, gravure roll coating, kiss coating, etc., and the above-mentioned base film is coated with an inorganic oxide vapor-deposited film on one side of the base film. A barrier resin layer according to the present invention can be formed by forming a resin coating film of the above resin composition on the surface of the oxide deposition film. The thickness of the barrier resin layer is preferably about 3 to 50 μm, more preferably about 5 to 30 μm.

In the present invention, the barrier resin such as the above-mentioned MXD6 nylon resin, ethylene-vinyl alcohol copolymer, polyvinyl alcohol resin, polyacrylonitrile resin, etc. Since it is a resin having a barrier property capable of preventing gas, water vapor and the like and capable of co-extrusion molding, for example, using a polyolefin resin, an adhesive resin, the above-mentioned barrier resin, and the like, These are melt-coextruded using a feedblock method or a multi-layer T die-casting method such as a multi-manifold method or another forming method. For example, at least a polyolefin-based resin layer, an adhesive resin layer, A barrier resin layer, an adhesive resin layer, and a multi-layer laminated resin layer composed of three types and five layers of a polyolefin-based resin layer, or A multilayer laminated resin film consisting of five seed layers is formed, and the same is applied to the above-described base film. The barrier resin layer can be formed by melt coextrusion or dry lamination on the surface of the film. Specifically, for example,
As the molding material, using three kinds of resins such as polyethylene resin, acid-modified polyolefin resin, MXD6 nylon resin or ethylene-vinyl alcohol copolymer,
These are formed by using a multi-layer T die casting method such as a feed block method or a multi-manifold method.
For example, a first polyolefin resin layer composed of a polyethylene resin / a first adhesive resin layer composed of an acid-modified polyolefin resin / a barrier resin layer composed of an MXD6 nylon resin / a second resin layer composed of an acid-modified polyolefin resin
Adhesive resin layer / Multilayer co-extruded resin layer composed of five layers of three types such as second polyolefin resin layer composed of polyethylene resin, or first polyolefin resin layer composed of polyethylene resin / acid-modified polyolefin First adhesive resin layer composed of a resin-based resin / barrier resin layer composed of an ethylene-vinyl alcohol copolymer / second adhesive resin layer composed of an acid-modified polyolefin-based resin / second composed of a polyethylene resin 3 such as polyolefin resin layer
A multilayer co-extruded resin layer composed of five seed layers can be used as the barrier resin layer.

In the present invention, the thickness of each resin layer constituting the above-mentioned three types of five-layer resin layer is, for example, about 1 to 2 for the first or second polyolefin-based resin layer. About 200 μm, preferably 5 to 100 μm
Is desirable, and as the thickness of the barrier resin layer,
About 1 to 100 μm, preferably about 5 to 50 μm is desirable, and the thickness of the first and second adhesive resin layers for bonding between the layers is about 1 to 100 μm, preferably about 5 to 100 μm. About 50 μm is desirable.

In the above, as the first and second polyolefin-based resin layers made of a polyethylene-based resin or the like, one of the polyolefin-based resin layers is formed of a vapor-deposited inorganic oxide film provided on one surface of the base film. Since it is to be laminated on the surface of the deposited inorganic oxide film of the barrier substrate, it is necessary to have adhesiveness to the deposited inorganic oxide film of the barrier substrate. Also, since the other polyolefin-based resin layer is formed by laminating a heat-sealing resin layer, it is desirable that the heat-sealing resin layer has adhesiveness. Further, the first and second polyolefin-based resin layers must be capable of being co-extruded and have an adhesive property with the first and second adhesive resin layers made of an acid-modified polyolefin-based resin. Things. Thus, in the present invention, as the first and second polyolefin-based resin layers as described above, specifically, for example, one or more of polyolefin-based resins that can be melted by heat and fused to each other are used. Two or more mixtures can be used.

As the above-mentioned polyolefin resin layer,
Specifically, for example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear (linear) low-density polyethylene, ethylene-α-olefin polymerized using a metallocene catalyst (single-site catalyst) Copolymer, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-
Methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer, polybutene polymer, polyethylene or polypropylene, etc. Resins such as an acid-modified polyolefin resin modified with an unsaturated carboxylic acid, a polyvinyl acetate resin, a poly (meth) acrylic resin, a polyvinyl chloride resin, and the like can be used. In the present invention, when the content needs to have a fragrance retention property, for example, terephthalic acid or isophthalic acid is used as an acid component, and polyethylene is obtained by polycondensing these with ethylene glycol. A heat-sealable polyester resin such as a terephthalate-isophthalate copolymer, or a heat-sealable ethylene-vinyl alcohol copolymer can also be used.

Further, in the above, the first and second adhesive resin layers made of an acid-modified polyolefin resin or the like are used for bonding the above-mentioned polyolefin resin layer and the barrier resin layer. It is necessary that both of them have adhesive properties and that they can be co-extruded. Thus, in the present invention, as the first and second adhesive resin layers as described above, specifically, for example, as described above, for example, a polyolefin-based resin that can be melted and fused to each other by heat Or a mixture of one or more of the above. Specifically, as described above, for example, polymerization was performed using a low-density polyethylene, a medium-density polyethylene, a high-density polyethylene, a linear (linear) low-density polyethylene, and a metallocene catalyst (single-site catalyst). Ethylene-α-olefin copolymer, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-
Methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methylpentene polymer, polybutene polymer, polyethylene or polypropylene, etc. Maleic anhydride, acid-modified polyolefin resin modified with other unsaturated carboxylic acids such as,
Polyvinyl acetate resin, poly (meth) acrylic resin,
Resins such as polyvinyl chloride resins and others can be used. Thus, in the present invention, among the above-mentioned resins, particularly, polyethylene, polypropylene or the like having strong adhesiveness and co-extrusion property is used for acrylic acid, methacrylic acid, fumaric acid, Maleic acid,
It is preferable to use an acid-modified polyolefin resin modified with an unsaturated carboxylic acid such as maleic anhydride or the like.

Next, in the present invention, the heat-sealing resin layer constituting the pouch for retort according to the present invention may be any material that can be melted by heat and can be fused to each other. High density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer Polymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer,
Methylpentene polymer, an acid-modified polyolefin resin obtained by modifying a polyolefin resin such as polyethylene or polypropylene with an unsaturated carboxylic acid such as acrylic acid, methacrylic acid, maleic anhydride, fumaric acid, etc.,
A resin film or sheet composed of one or more other resins, or a coating film thereof can be used. The above resin film or sheet can be used in a single layer or multilayer, and the thickness of the above resin film or sheet is 5 μm to 30 μm.
It is desirably about 0 μm, preferably about 10 μm to 110 μm. Further, in the present invention, the thickness of the resin film or sheet described above may be such that, at the time of bag making of a retort pouch, a scratch or a crack is formed on a deposited film of an inorganic oxide constituting a barrier substrate. In order to prevent the occurrence of the like, it is preferable that the film thickness is relatively thick, specifically, about 40 μm to 110 μm, and preferably about 50 μm to 100 μm. is there. In the present invention, among the resin films or sheets as described above, in particular, a resin having a thickness of 50
It is preferable to use an unstretched polypropylene film having a size of from about μm to about 100 μm. By the way, in the present invention, as a laminating method for laminating the heat-sealing resin layer, as described above, a dry laminating laminating method for laminating via a laminating adhesive layer or the like, or The heat-sealing resin layer can be laminated by a melt-extrusion laminating method or the like in which the layers are laminated via an anchor coat agent layer, a melt-extruded resin layer and the like.

By the way, since packaging bags are usually subjected to severe physical and chemical conditions, strict packaging suitability is required for the laminated material constituting the packaging bags, and deformation prevention strength is required. , Drop impact strength, pinhole resistance, heat resistance, sealability, quality maintenance, workability, hygiene, etc., and various other conditions are required. In addition to the material, any other material that satisfies the above conditions can be used arbitrarily.
For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear low density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-ethyl acrylate copolymer, Ethylene-acrylic acid or methacrylic acid copolymer, methylpentene polymer, polybutene resin, polyvinyl chloride resin, polyvinyl acetate resin, polyvinylidene chloride resin, vinyl chloride-vinylidene chloride copolymer, poly (meth ) Acrylic resin, polyacrylonitrile resin, polystyrene resin, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin), polyester resin, polyamide resin, polycarbonate -Bonnet tree Films of known resins such as polyvinyl alcohol-based resin, saponified ethylene-vinyl acetate copolymer, fluorine-based resin, diene-based resin, polyacetal-based resin, polyurethane-based resin, nitrocellulose, etc. The sheet can be arbitrarily selected and used. In addition, for example, synthetic paper can be used. In the present invention, the above-mentioned film or sheet may be any of unstretched and uniaxially or biaxially stretched. The thickness is arbitrary, but can be selected from a range of several μm to about 300 μm. Further, in the present invention, as the film or sheet, extrusion film formation,
Any film such as an inflation film or a coating film may be used.

In particular, in the present invention, other base materials include, for example, low-density polyethylene, medium-density polyethylene, high-density polyethylene, linear low-density polyethylene having a barrier property for preventing permeation of water vapor, water and the like. Films or sheets of resin such as polypropylene, ethylene-propylene copolymer, etc. Coloring agents such as pigments are added to the resin, and other desired additives are added and kneaded to form various colors having light-shielding properties. Resin films or sheets can be used. These materials can be used alone or in combination of two or more. The thickness of the film or sheet is arbitrary, but is usually about 5 μm to 300 μm,
A thickness of about 10 μm to 100 μm is desirable.

In the present invention, any one side of the above-mentioned base material constituting the retort pouch according to the present invention may have, for example, desired characters, figures, symbols, patterns, etc. A printing pattern can be printed to form a printing pattern layer. The printed pattern layer contains one or more of ordinary ink vehicles as main components, and, if necessary, a plasticizer, a stabilizer, an antioxidant, a light stabilizer, an ultraviolet absorber, and a curing agent. Agent, crosslinking agent,
One or more additives such as a lubricant, an antistatic agent, a filler, and the like are optionally added, and a colorant such as a dye or a pigment is further added. The mixture is sufficiently kneaded with a solvent, a diluent, or the like. To prepare an ink composition, and then using the ink composition, for example, using a printing method such as gravure printing, offset printing, letterpress printing, screen printing, transfer printing, flexographic printing, etc. The printed pattern layer according to the present invention can be formed by printing a desired printed pattern consisting of characters, figures, symbols, patterns, etc. on one surface of the base film.

In the above, as the ink vehicle,
Known ones, for example, linseed oil, cutting oil, soybean oil, hydrocarbon oil, rosin, rosin ester, rosin modified resin, shellac, alkyd resin, phenolic resin, maleic resin, natural resin, hydrocarbon resin , Polyvinyl chloride resin, polyvinyl acetate resin, polystyrene resin, polyvinyl butyral resin, acrylic or methacrylic resin, polyamide resin, polyester resin, polyurethane resin, epoxy resin, urea resin, melamine One or two or more of resins, amino alkyd resins, nitrocellulose, ethyl cellulose, chlorinated rubber, cyclized rubber, and others can be used.

Next, in the present invention, a method for producing a laminated material constituting the retort pouch according to the present invention by using the above-mentioned materials will be described. A laminating method used in the production of, for example, a wet laminating method, a dry laminating method, a solvent-free laminating method, an extruding laminating method,
Coextrusion laminating method, inflation laminating method,
It can be performed by other lamination methods or the like. Specifically, in the present invention, at least a barrier substrate having a vapor-deposited inorganic oxide film provided on one surface of a substrate film, a barrier resin layer, and a heat-sealing resin layer. ,As aforementioned,
A laminated material is formed by a dry laminating lamination method in which lamination is performed via an adhesive layer for laminating, or a melt extrusion lamination method in which lamination is performed through an anchor coating agent layer, a melt extruded resin layer, or the like. can do. More specifically,
In the present invention, a laminating adhesive layer or the like is formed on the surface of the inorganic oxide vapor-deposited film of the barrier substrate in which the inorganic oxide vapor-deposited film is provided on one surface of the substrate film, and then A barrier resin layer is superposed on the surface of the adhesive layer for laminating and the like, and both are laminated via a laminating adhesive layer and the like, and then laminated with a dry laminate. A laminating adhesive layer or the like is formed on the surface of the barrier resin layer laminated as described above in the same manner as described above. -Laminate resin layers are opposed to each other, and the two layers are laminated by dry lamination via a laminating adhesive layer or the like to produce laminated materials having various forms. Alternatively, in the present invention, an inorganic coating vapor-deposited film is provided on one surface of a substrate film, and an anchor coat agent layer is formed on one surface of the inorganic oxide vapor-deposited film of the barrier substrate. An extruded resin layer or the like is formed, and then a barrier resin layer is opposed to the surface of the anchor coating agent layer, the melt-extruded resin layer, or the like, and both are melt-extruded and laminated. An anchor coat agent layer, a melt extruded resin layer, etc. are formed on the surface of the barrier resin layer laminated by melt extrusion in the same manner as described above, and then the anchor coat agent layer, the melt extruded resin layer, etc. In the face,
The laminated resin layers having various shapes can be manufactured by opposing the resinous resin layers and melt-extruding and laminating them. Of course, in the present invention, as described above, at least the surface of the inorganic oxide vapor deposition film of the barrier substrate in which the inorganic oxide vapor deposition film is provided on one surface of the substrate film has a close adhesion. In order to increase and improve the lamination strength, etc.,
It is also possible to provide a primer agent layer or the like using a primer agent or the like, and then laminate another barrier resin layer or the like. Further, in the present invention, when performing the above lamination, if necessary, for example, on the surface of the substrate to be laminated,
Pretreatment such as corona treatment, ozone treatment, and frame treatment can be optionally performed. Thus, in the present invention, in the above-described laminating method, in the case of the above-described dry laminating method, a laminated material having a laminating strength that can withstand processing conditions in retort processing and the like described later is relatively used. It is preferable because it can be manufactured.

In the above-described dry laminate laminating method, the adhesive constituting the laminate adhesive layer is as follows.
For example, a polyvinyl acetate adhesive, a homopolymer such as ethyl, butyl or 2-ethylhexyl acrylate, or a polyacrylic ester comprising a copolymer thereof with methyl methacrylate, acrylonitrile, styrene or the like. Adhesives, cyanoacrylate adhesives, ethylene copolymer adhesives composed of copolymers of ethylene with monomers such as vinyl acetate, ethyl acrylate, acrylic acid, methacrylic acid, etc., cellulose adhesives, Polyester adhesives, polyamide adhesives, polyimide adhesives, amino resin adhesives made of urea resin or melamine resin, phenol resin adhesives, epoxy adhesives, polyurethane adhesives, reactive type ( (Meth) acrylic adhesive, chloroprene rubber, nitrile rubber, styrene-butadiene rubber Made of rubber-based adhesives, silicone -
It is possible to use an inorganic adhesive such as an inorganic adhesive, an alkali metal silicate, a low-melting glass, or the like, and other adhesives. The composition system of the above-mentioned adhesive may be any composition form such as an aqueous type, a solution type, an emulsion type, a dispersion type, etc., and the properties thereof include a film sheet, a powder, and a solid. Any form may be used, and the bonding mechanism may be any form such as a chemical reaction type, a solvent volatilization type, a heat melting type, and a heat pressure type. The above adhesive can be applied by, for example, a roll coating method, a gravure roll coating method, a kiss coating method, or another coating method, or a printing method. The coating amount is preferably about 0.1 to 10 g / m ² (dry state). In the present invention, when laminating by the dry-laminate laminating method, the laminating surface may be arbitrarily subjected to a surface modification pretreatment such as corona discharge treatment, ozone treatment, or plasma discharge treatment in advance. Is coming.

As the melt-extruded resin layer in the above-mentioned melt-extrusion lamination method, for example, polyethylene-based resin,
Polypropylene-based resin, acid-modified polyethylene-based resin, acid-modified polypropylene-based resin, ethylene-acrylic acid or methacrylic acid copolymer, surin-based resin, ethylene-
Use one or more of thermoplastic resins such as vinyl acetate copolymer, polyvinyl acetate resin, ethylene-acrylate or methacrylate copolymer, polystyrene resin, polyvinyl chloride resin, etc. can do. In the above-mentioned melt extrusion lamination method, in order to obtain a stronger adhesive strength, for example, lamination can be performed via an anchor coat agent layer such as an anchor coat agent. Examples of the above-mentioned anchor coating agent include various aqueous or oily anchor coating agents such as organotitanium, isocyanate, polyethyleneimine, polybutadiene, etc. such as alkyl titanate. Can be used. The above-mentioned anchor coating agents include, for example, roll coat, gravure roll coat, kisco-coat.
Coating can be performed by using a coating method such as coating, etc., and the coating amount is 0.1 to
It is preferably about 5 g / m ² (dry state).

In the present invention, as described above,
At least, on the surface of the inorganic oxide deposited film of the barrier substrate provided with the inorganic oxide deposited film on one surface of the substrate film, to increase the tight adhesion, to improve its lamination strength and the like, It is also possible to provide a primer agent layer or the like with a primer agent or the like in advance, and then laminate another barrier resin layer or the like. However, as the above-mentioned primer agent layer, first, a polyurethane resin or A polyester-based resin is used as a main component of the vehicle, and a silane coupling agent is used in an amount of about 0.05 to 10% by weight, preferably 0.1 to 5% by weight based on 1 to 30% by weight of the polyurethane-based resin or polyester-based resin. %, A filler of about 0.1 to 20% by weight, preferably about 1 to 10% by weight, and further, if necessary, a stabilizer, a curing agent, a crosslinking agent, a lubricant, an ultraviolet absorber, Other additives Optionally added solvent, thoroughly mixed to prepare a resin composition by adding a diluent or the like. Thus, the above-prepared resin composition is used and, for example, a roll coat, a gravure coat, a knife coat, a dip coat, a spray coat, other coating methods and the like are used. Thus, a coating is performed on the inorganic oxide vapor-deposited film provided on one surface of the base film, and thereafter, the coating is performed.
The primer film according to the present invention can be formed by drying the coating film to remove the solvent, diluent, and the like, and, if necessary, performing aging treatment and the like. In the present invention, the thickness of the primer agent layer is preferably, for example, about 0.1 g / m ^{2 to} 5.0 g / m ² (dry state). Thus, in the present invention, the above-mentioned primer agent layer improves the close adhesiveness and the like and the elongation degree of the primer agent layer, for example, by laminating or bag-making. The purpose of the present invention is to improve the suitability for post-processing such as processing and to prevent the occurrence of cracks and the like in the deposited film of the inorganic oxide during the post-processing.

In the above, as the polyurethane resin constituting the above resin composition, for example, a polyurethane resin obtained by reacting a polyfunctional isocyanate with a hydroxyl group-containing compound can be used. Specifically, for example, aromatic polyisocyanates such as tolylene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, etc.
Or polyfunctional isocyanates such as aliphatic polyisocyanates such as hexamethylene diisocyanate and xylylene diisocyanate; and polyether polyols.
One- or two-component curing type polyurethane resins obtained by reaction with a hydroxyl group-containing compound such as polyester, polyester polyol, polyacrylate polyol or the like can be used. Thus, in the present invention,
By using the polyurethane resin as described above, the close adhesiveness and the like can be improved and the elongation of the primer agent layer can be improved. To prevent the occurrence of cracks and the like in the deposited film of the inorganic oxide during the post-processing.

In the above, as the polyester resin constituting the above resin composition, for example, one or more aromatic saturated dicarboxylic acids having a benzene nucleus as a basic skeleton such as terephthalic acid may be used. A thermoplastic polyester resin formed by polycondensation with one or more divalent alcohols can be used. In the above, examples of the aromatic saturated dicarboxylic acid having a benzene nucleus as a basic skeleton include, for example, terephthalic acid, isophthalic acid, phthalic acid, and diphenyl ether-
4,4-dicarboxylic acid and others can be used. In the above, as the saturated divalent alcohol, ethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, diethylene glycol, polyethylene glycol, polypropylene glycol, polypropylene glycol, Polytetramethylene glycol, hexamethylene glycol, dodecamethylene glycol,
Aliphatic glycols such as neopentyl glycol; alicyclic glycols such as cyclohexanedimethanol; 2.2.
Bis (4'-β-hydroxyethoxyphenyl) propane, naphthalenediol, other aromatic di-, and the like can be used.

In the present invention, as the polyester resin, specifically, for example, thermoplastic polyethylene terephthalate resin formed by polycondensation of terephthalic acid and ethylene glycol, terephthalic acid and tetramethylene Thermoplastic polybutylene terephthalate resin formed by polycondensation with glycol, terephthalic acid and 1,4
-Thermoplastic polycyclohexane dimethylene terephthalate formed by polycondensation with cyclohexane dimethanol
Resin, thermoplastic polyethylene terephthalate resin formed by copolycondensation of terephthalic acid, isophthalic acid and ethylene glycol, terephthalic acid and ethylene glycol
Thermoplastic terephthalate resin formed by the copolycondensation of toluene and 1,4-cyclohexanedimethanol, formed by the copolycondensation of terephthalic acid, isophthalic acid, ethylene glycol and propylene glycol Thermoplastic polyethylene terephthalate resin, polyester polyol resin and the like can be used. In the present invention, a saturated aromatic dicarboxylic acid having a benzene nucleus as a basic skeleton as described above further includes, for example,
Malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, can be copolycondensed by adding one or more aliphatic saturated dicarboxylic acids such as dodecanoic acid, It is preferable to use about 1 to 10% by weight of aromatic saturated dicarboxylic acid having a benzene nucleus as a basic skeleton. Thus, in the present invention, by using the polyester resin as described above, the close adhesion and the like are improved, and the elongation of the primer agent layer is improved. For example, laminating or The purpose of the present invention is to improve the suitability for post-processing such as bag making, and to prevent the occurrence of cracks and the like in the deposited film of the inorganic oxide during the post-processing.

Further, in the above, as the silane coupling agent constituting the above resin composition, an organic functional silane monomer having a binary reactivity can be used. For example, γ-chloropropyl Trimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyl-tris (β-methoxyethoxy) silane,
γ-methacryloxypropyltrimethoxysilane, β
-(3,4-epoxycyclohexyl) ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, vinyltriacetoxysilane, γ-mercaptopropyltrimethoxysilane, N-β (aminoethyl)-
γ-aminopropyltrimethoxysilane, N-β (aminoethyl) -γ-aminopropylmethyldimethoxysilane, γ-ureidopropyltriethoxysilane, bis (β-hydroxyethyl) -γ-aminopropyltriethoxysilane, γ- One or more of aqueous solutions of aminopropylsilicone and the like can be used.

In the silane coupling agent as described above, a functional group at one end of the molecule, usually, a chloro, alkoxy, or acetoxy group or the like is hydrolyzed to form a silanol group (SiOH). , A metal constituting the deposited film of the inorganic oxide, or an active group on the surface of the deposited film of the inorganic oxide, for example, by any action with a functional group such as a hydroxyl group, for example, causing a reaction such as a dehydration condensation reaction. The silane coupling agent is modified by a covalent bond or the like on the surface of the deposited inorganic oxide film, and a strong bond is formed on the surface of the deposited inorganic oxide film of the silanol group itself by adsorption or hydrogen bonding. . On the other hand, the other end of the silane coupling agent vinyl, methacryloxy, amino, epoxy, or
Organic functional groups such as mercapto are formed on the thin film of the silane coupling agent, for example, react with substances constituting the adhesive layer, other layers, etc. to form a strong bond,
By firmly and tightly bonding, the laminate strength is increased, and thus, in the present invention, a strong laminated structure having a high laminate strength can be formed. In the present invention, the inorganic and organic properties of the silane coupling agent are utilized, and a deposited film of an inorganic oxide, an adhesive layer, an anchor coat agent layer, and other layers are interposed. To improve the tight adhesion to the substrate and the like, thereby increasing the laminating strength and the like.

Next, in the present invention, as a filler constituting the above resin composition, for example, calcium carbonate,
Barium sulfate, alumina white, silica, talc, glass frit, resin powder, and the like can be used. Thus, the above-mentioned filler adjusts the viscosity and the like of the above-mentioned resin composition liquid, improves its coating suitability, and combines a silane coupling agent with a polyurethane resin or polyester resin as a binder resin. To improve the cohesive force of the coating film.

In the present invention, in addition to the above-mentioned primer agent layer composed of a coating film made of the resin composition, furthermore, for example, a polyamide resin or an epoxy resin may be used as the primer agent layer. , Phenolic resin,
A resin composition containing a (meth) acrylic resin, a polyvinyl acetate resin, a polyolefin resin such as polyethylene aliha polypropylene or a copolymer or modified resin thereof, a cellulose resin, or the like as a main component of a vehicle. Can be used to form a primer layer. In the present invention, a primer coating agent layer is formed by coating using a coating method such as roll coating, gravure coating, kiss coating, or the like. Therefore, the coating amount is desirably about 0.1 to 5 g / m ² (dry state). In the present invention, it is most effective to use, as the primer agent layer, a primer agent layer made of a resin composition containing the above-mentioned polyurethane resin or polyester resin as a main component of the vehicle. .

Next, in the present invention, a bag-shaped container body manufactured by using the above-described laminated material will be described. The surfaces of the conductive resin layers are opposed to each other, and then the peripheral edge is heat-sealed to form a seal portion, thereby producing a bag-shaped container body having an opening at the upper end. Can be bag. Thus, as a bag making method, the above-described laminated material is folded or overlapped,
The surfaces of the inner layers are opposed to each other, and the peripheral end portions thereof are, for example, a side seal type, a two-side seal type, a three-side seal type, a four-side seal type, an envelope-attached seal type, and a gasket. Heat seals such as adhesive seal type (pyro-seale type), pleated seal type, flat bottom seal type, square bottom seal type, gusset type, etc. To produce bag-shaped container bodies of various forms having an opening at the upper end. In addition, as the bag-like container body, for example, a self-supporting packaging bag (standing pouch) or the like can be used. In the above, as a method of heat sealing, for example,
Roll, rotary roll seal, belt seal, impulse seal
It can be performed by a known method such as a seal, a high-frequency seal, an ultrasonic seal, or the like.

Next, in the present invention, the contents are filled through the opening of the bag-shaped container body having an opening at the upper end manufactured as described above, and then the opening is heat-sealed at the upper end. By sealing, to produce a packaging semi-finished product using the pouch for retort according to the present invention, and then
By subjecting the packaged semi-finished product to a heat treatment such as a retort treatment or a boil treatment, a retort food using the pouch for retort according to the present invention can be produced. In the above, as a method of retort treatment or boil treatment, for example, a normal retort pot is used, and the temperature is about 110 to 130 ° C., preferably 1 to 130 ° C.
About 20 ° C., pressure, about 1 to 3 kgf / cm ² · G, preferably about 2.1 kgf / cm ² · G, time, 20
About 60 minutes, preferably about 30 minutes, a method of heating and pressurizing, or temperature, 90 to 100 ° C., preferably about 90 ° C., time, about 5 to 20 minutes, preferably about 10 minutes It can be performed by a method of performing a boil process at the position. Thus, in the present invention, the contents can be subjected to heat sterilization or heat sterilization cooking by the retort treatment or the boil treatment as described above.

Next, in the present invention, the contents to be filled and packaged in the retort pouch according to the present invention include, for example, cooked foods, seafood kneaded products, frozen foods, boiled foods, rice cakes, liquid soups, seasonings, etc. And various foods and beverages, specifically, for example, curry, stew, soup, meat sauce
, Hamburg, meatball, suimai, oden,
Examples include various foods and drinks such as liquid foods such as porridge, jelly-like foods, seasonings, and others. Thus, in the present invention, the retort pouch according to the present invention is excellent in various physical properties such as heat resistance, pressure resistance, water resistance, heat sealability, pinhole resistance, piercing resistance, and others. In particular, it has excellent barrier properties and transparency to prevent permeation of oxygen gas, water vapor, etc., withstands heat treatment accompanying processing such as retort treatment, and further aims to reduce the weight and weight of containers and packaging waste. In addition, the manufacturing cost can be reduced by shortening the manufacturing process, and it is excellent in suitability for filling and packaging of contents, quality preservation, and the like.

Specifically, in the present invention, when a polyester resin film is used as the base film, for example, a bag-shaped container body having excellent physical properties such as heat resistance and bending resistance is used. It can be manufactured, and as a base film, for example, a polyamide resin (nylon)
When a film is used, a bag-shaped container body having particularly excellent pinhole resistance can be produced. Further, in the present invention, when a barrier resin layer or the like is formed by using MXD6 nylon resin or the like, a bag-shaped container body having excellent barrier properties and pinhole resistance can be manufactured. is there. Further, in the present invention, the deposited film of the inorganic oxide has transparency, and has a barrier property of preventing permeation of oxygen gas, water vapor, and the like. Like the inorganic oxide vapor-deposited film, it has a barrier property of preventing permeation of oxygen gas, water vapor and the like, and its two layers have a barrier effect of preventing permeation of oxygen gas, water vapor and the like. In the end, due to the synergistic effect of the two,
Demonstrate the effect of barrier properties, etc., and also have excellent functionality, etc., almost equivalent to metal foil such as aluminum foil, or
In addition to the metal foil, such as aluminum foil, it has excellent transparency and excellent visibility of contents, etc. This enables a detection test. Furthermore, in the present invention, the deposited film of the inorganic oxide, etc., the film thickness is comprised of several tens to several thousand 、, for example,
Compared with a metal foil such as an aluminum foil having a thickness of about 5 to 20 μm, the thickness can be significantly reduced and the weight can be reduced. It is possible to achieve weight reduction, weight reduction, and the like. Furthermore, in the present invention, an organic silicon compound is used as a monomer gas for vapor deposition, and a vapor-deposited silicon oxide film formed by plasma chemical vapor deposition is used.
When used as a vapor-deposited film of an inorganic oxide constituting a barrier layer, the silicon oxide-deposited film has high flexibility and flexibility and the like. This has the advantage that the properties and the like are not reduced.

[0056]

Next, the present invention will be described more specifically with reference to examples of the present invention. Example 1 (1). As a base film, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used.
The above biaxially stretched polyethylene terephthalate film was mounted on a delivery roll of a winding type vacuum evaporation apparatus,
Next, this is fed out, and aluminum is used as a vapor deposition source while supplying oxygen gas to the corona-treated surface of the biaxially stretched polyethylene terephthalate film by a vacuum vapor deposition method using an electron beam (EB) heating method. ,
Under the following evaporation conditions, a 200-nm-thick aluminum oxide evaporation film was formed. (Evaporation conditions) Degree of vacuum in evaporation chamber: 2 × 10 ⁻⁴ mbar Degree of vacuum in winding chamber: 2 × 10 ⁻² mbar Electron beam power: 25 kW Film transport speed: 420 m / min Evaporation surface : Corona treated surface Immediately after forming the aluminum oxide vapor-deposited film having a thickness of 200 ° above, a power of 9 k was applied to the aluminum oxide vapor-deposited film surface by using a glow discharge plasma generator.
w, oxygen gas (O ₂ ): argon gas (Ar) = 7.
Using a mixed gas consisting of 0: 2.5 (unit: slm) and performing an oxygen / argon mixed gas plasma treatment at a mixed gas pressure of 6 × 10 ⁻⁵ Torr to form a plasma-treated surface, the barrier substrate Was manufactured. (2). Next, after forming a desired print pattern on the surface of the plasma-treated surface of the barrier substrate manufactured as described above, a two-part curable polyurethane-based laminating adhesive is applied to the entire surface including the print pattern. This was used and coated by a gravure roll coating method so as to have a film thickness of 5.0 g / m ² (dry state) to form an adhesive layer for laminating. . Next, a 15 μm-thick nylon 6 resin and MXD6
A co-extruded film made of a nylon resin (product name, M100, manufactured by Unitika Ltd.) was made to face, and then both were laminated by dry lamination. Further, a nylon 6 resin having a thickness of 15 μm and
On the surface of the co-extruded film made of XD6 nylon resin,
A two-component curable polyurethane-based adhesive for laminating was used, and was coated by a gravure roll coating method to a film thickness of 5.0 g / m ² (dry state) in the same manner as described above. To form a laminating adhesive layer, and then a thickness of 60 μm on the surface of the laminating adhesive layer.
Were laminated by dry lamination to produce a laminated material according to the present invention. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.
The retort food manufactured above has a packaging bag excellent in heat resistance, pressure resistance, water resistance, barrier properties, heat sealability, pinhole resistance, piercing property, transparency, etc., and further, It was excellent in barrier properties against oxygen gas, water vapor, etc., did not break the bag or leak the contents, and was excellent in the function as a food container, for example, suitability for filling and packaging the contents, suitability for distribution, and suitability for storage.

Embodiment 2 (1). A biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used and mounted on a delivery roll of a plasma-enhanced chemical vapor deposition apparatus. Then, under the following conditions, the above biaxially stretched polyethylene terephthalate film was used. On the corona-treated surface of the film, a deposited film of silicon oxide having a thickness of 200 ° was formed. (Evaporation conditions) Evaporation surface; Corona treated surface Introduced gas amount: Hexamethyldisiloxane: Oxygen gas: Helium = 1.0: 3.0: 3.0 (unit: slm) Degree of vacuum in vacuum chamber; 6 × 10 ⁻⁶ mBar Degree of vacuum in the deposition chamber; 2 to 5 × 10 ⁻³ mBar Cooling / electrode drum supply power; 10 kW Line speed; 100 m / min Immediately after the formation, a glow-discharge plasma generator was used to apply a power of 9 kW, oxygen gas (O ₂ ): argon gas (Ar) = 7.0: 2.5 ( Unit: slm) is used, and the mixed gas pressure is 6
Oxygen / argon mixed gas plasma treatment is performed at × 10 ^-5 Torr to reduce the surface tension of the silicon oxide deposited film surface to 54 dy.
A plasma treated surface improved by ne / cm or more was formed. Further, on the plasma-treated surface formed as described above, an epoxy-based silane coupling agent (8.0% by weight) and an anti-blocking agent (1.
0% by weight) and thoroughly kneaded, using a gravure roll coating method so that the film thickness becomes 0.5 g / m ² (dry state). And then dried to form a primer layer to produce a barrier substrate. (2). Next, after forming a desired printed pattern on the surface of the primer layer of the barrier substrate manufactured in the above (1), a two-component curable polyurethane laminate is applied over the entire surface including the printed pattern. Using an adhesive for this, as described above,
The film thickness is 5.0 g / m2 by the gravure roll coating method.
² Laminate by coating so that it is dry
An adhesive layer was formed. Next, a 15 μm-thick co-extruded film (product name, M100, manufactured by Unitika Ltd.) made of a nylon 6 resin and a MXD6 nylon resin was opposed to the surface of the laminating adhesive layer formed above, Then, both were laminated by dry lamination. Further, a two-component curing type polyurethane-based laminating adhesive was used on the surface of the co-extruded film composed of the nylon 6 resin having a thickness of 15 μm and the MXD6 nylon resin laminated on the dry laminating layer, and In the same manner as described above, coating was performed by a gravure roll coating method to a film thickness of 5.0 g / m ² (in a dry state) to form an adhesive layer for laminating. A 60 μm-thick unstretched polypropylene film was dry-laminated and laminated on the surface of the laminating adhesive layer to produce a laminated material according to the present invention. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.
The retort food manufactured above has a packaging bag excellent in heat resistance, pressure resistance, water resistance, barrier properties, heat sealability, pinhole resistance, piercing property, transparency, etc., and further, It was excellent in barrier properties against oxygen gas, water vapor, etc., did not break the bag or leak the contents, and was excellent in the function as a food container, for example, suitability for filling and packaging the contents, suitability for distribution, and suitability for storage.

Embodiment 3 (1). As a base film, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used.
The above biaxially stretched polyethylene terephthalate film was mounted on a delivery roll of a winding type vacuum evaporation apparatus,
Next, this is fed out, and aluminum is used as a vapor deposition source while supplying oxygen gas to the corona-treated surface of the biaxially stretched polyethylene terephthalate film by a vacuum vapor deposition method using an electron beam (EB) heating method. ,
Under the following evaporation conditions, a 200-nm-thick aluminum oxide evaporation film was formed. (Evaporation conditions) Degree of vacuum in evaporation chamber: 2 × 10 ⁻⁴ mbar Degree of vacuum in winding chamber: 2 × 10 ⁻² mbar Electron beam power: 25 kW Film transport speed: 420 m / min Evaporation surface : Corona treated surface Immediately after forming the aluminum oxide vapor-deposited film having a thickness of 200 ° above, a power of 9 k was applied to the aluminum oxide vapor-deposited film surface by using a glow discharge plasma generator.
w, oxygen gas (O ₂ ): argon gas (Ar) = 7.
Using a mixed gas consisting of 0: 2.5 (unit: slm) and performing an oxygen / argon mixed gas plasma treatment at a mixed gas pressure of 6 × 10 ⁻⁵ Torr to form a plasma-treated surface, the barrier substrate Was manufactured. (2). Next, after forming a desired print pattern on the surface of the plasma-treated surface of the barrier substrate manufactured as described above, a two-part curable polyurethane-based laminating adhesive is applied to the entire surface including the print pattern. This was used and coated by a gravure roll coating method so as to have a film thickness of 5.0 g / m ² (dry state) to form an adhesive layer for laminating. . Next, on the surface of the laminating adhesive layer formed as described above, a co-extruded film made of a nylon 6 resin having a thickness of 15 μm and an ethylene-vinyl alcohol copolymer resin (trade name, manufactured by Unitika Ltd.) M100) were opposed to each other, and then both were laminated by dry lamination.
Further, a two-component curable polyurethane-based laminating adhesive is applied to the surface of the co-extruded film composed of the nylon 6 resin having a thickness of 15 μm and the ethylene-vinyl alcohol copolymer resin laminated on the dry laminate as described above. This was used in the same manner as described above, and the film thickness was adjusted by the gravure roll coating method.
0 g / m ² (dry state) to form a laminating adhesive layer, and then apply a 60 μm-thick non-stretched film to the surface of the laminating adhesive layer. The polypropylene film was dry-laminated and laminated to produce a laminated material according to the present invention. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.
The retort food manufactured above has a packaging bag excellent in heat resistance, pressure resistance, water resistance, barrier properties, heat sealability, pinhole resistance, piercing property, transparency, etc., and further, It was excellent in barrier properties against oxygen gas, water vapor, etc., did not break the bag or leak the contents, and was excellent in the function as a food container, for example, suitability for filling and packaging the contents, suitability for distribution, and suitability for storage.

Embodiment 4 (1). As a base film, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used.
The above biaxially stretched polyethylene terephthalate film was mounted on a delivery roll of a take-up type vacuum evaporation apparatus, and then unwound. Was used as a vapor deposition source, and while supplying oxygen gas, a 200-Å-thick aluminum oxide vapor-deposited film was formed by a vacuum vapor deposition method using an electron beam (EB) heating method under the following vapor deposition conditions. (Evaporation conditions) Degree of vacuum in evaporation chamber: 2 × 10 ⁻⁴ mbar Degree of vacuum in winding chamber: 2 × 10 ⁻² mbar Electron beam power: 25 kW Film transfer speed: 420 m / min Evaporation surface : Corona-treated surface Next, immediately after forming the above-described 200-mm-thick aluminum oxide vapor-deposited film, a plasma-treated surface was formed on the aluminum oxide-deposited film in the same manner as in Example 1 above. And a barrier substrate. (2). Next, after forming a desired printed pattern on the surface of the plasma-treated surface of the barrier substrate manufactured in the above (1),
A two-component curable polyurethane-based laminating adhesive was used on the entire surface including the printed pattern, and this was applied to a film thickness of 5.0 g / m 2 by the gravure roll coating method in the same manner as described above.
² Laminate by coating so that it is dry
An adhesive layer was formed. Next, a 15 μm-thick ethylene-vinyl alcohol copolymer resin film (trade name, EF-CR, manufactured by Kuraray Co., Ltd.) was opposed to the surface of the laminating adhesive layer formed above. , And both were laminated by dry lamination. Further, a two-part curable polyurethane-based laminating adhesive was used on the surface of the 15 μm-thick ethylene-vinyl alcohol copolymer resin film laminated with the dry laminate as described above. Then, a film thickness of 5.0 was obtained by a gravure roll coating method.
g / m ² (dry state) to form a laminating adhesive layer, and then apply a 60 μm-thick non-stretched film to the surface of the laminating adhesive layer. The polypropylene film was dry-laminated and laminated to produce a laminated material according to the present invention. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.
The retort food manufactured above has a packaging bag excellent in heat resistance, pressure resistance, water resistance, barrier properties, heat sealability, pinhole resistance, piercing property, transparency, etc., and further, It was excellent in barrier properties against oxygen gas, water vapor, etc., did not break the bag or leak the contents, and was excellent in the function as a food container, for example, suitability for filling and packaging the contents, suitability for distribution, and suitability for storage.

Comparative Example 1 (1). On one side of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, a two-component curable polyurethane-based laminating adhesive having a thickness of 5.0 g / m ² (dried state) using a gravure roll coating method. ) To form an adhesive layer for laminating, and then a 7 μm-thick aluminum foil is superposed on the surface of the adhesive layer for laminating, and then both are dry laminated. And laminated. Next, an adhesive layer for laminating is formed on the surface of the aluminum foil laminated as described above, and then a 15 μm thick
m, and biaxially stretched nylon 6 films were superposed on each other, and then both were dry-laminated and laminated. Next, after applying a corona discharge treatment to the surface of the biaxially stretched nylon 6 film laminated as described above, an adhesive layer for laminating is formed on the corona treated surface in the same manner as described above. A 60 μm-thick unstretched polypropylene film was dry-laminated on the adhesive layer for laminating and laminated to produce a laminated material. (2). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

Comparative Example 2 (1). On one side of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, a two-component curable polyurethane-based laminating adhesive was applied to a thickness of 4.0 g / m ² (dry state) using a gravure roll coating method. ) To form an adhesive layer for laminating, and then a 7 μm-thick aluminum foil is superposed on the surface of the adhesive layer for laminating, and then both are dry laminated. And laminated. Next, a laminating adhesive layer is formed on the surface of the laminated aluminum foil in the same manner as described above, and then a 60 μm thick laminating adhesive layer is formed on the laminating adhesive layer surface.
The unstretched polypropylene film having a length of m was dry-laminated and laminated to produce a laminated material. (2). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

Comparative Example 3 (1). On one side of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm, a two-component curable polyurethane-based laminating adhesive was applied to a thickness of 4.0 g / m ² (dry state) using a gravure roll coating method. ) To form a laminating adhesive layer, and then a 15-μm-thick biaxially stretched nylon 6 film is superposed on the laminating adhesive layer surface. Both were dry laminated and laminated. Next, 2
After subjecting the surface of the axially stretched nylon 6 film to a corona discharge treatment, an adhesive layer for laminating is formed on the corona treated surface in the same manner as described above.
A 60 μm-thick unstretched polypropylene film was dry-laminated on the surface of the adhesive layer, and laminated to produce a laminated material. (2). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

Comparative Example 4 (1). On one surface of a biaxially stretched nylon 6 film having a thickness of 15 μm, a two-component curable polyurethane-based laminating adhesive was applied at a thickness of 4.0 g / m by a gravure roll coating method.
( ² ) Coating (dry state) to form an adhesive layer for laminating, and then laminating an unstretched polypropylene film having a thickness of 60 μm on the surface of the adhesive layer for laminating by dry laminating. Thus, a laminated material was manufactured. (2). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

Comparative Example 5 (1). As a base film, a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used.
The above biaxially stretched polyethylene terephthalate film was mounted on a delivery roll of a take-up type vacuum evaporation apparatus, and then unwound. Was used as a vapor deposition source, and while supplying oxygen gas, a 200-Å-thick aluminum oxide vapor-deposited film was formed by a vacuum vapor deposition method using an electron beam (EB) heating method under the following vapor deposition conditions. (Evaporation conditions) Degree of vacuum in evaporation chamber: 2 × 10 ⁻⁴ mbar Degree of vacuum in winding chamber: 2 × 10 ⁻² mbar Electron beam power: 25 kW Film transport speed: 420 m / min Evaporation surface : Corona treated surface Immediately after forming the aluminum oxide vapor-deposited film having a thickness of 200 ° above, a power of 9 k was applied to the aluminum oxide vapor-deposited film surface by using a glow discharge plasma generator.
w, oxygen gas (O ₂ ): argon gas (Ar) = 7.
Using a mixed gas of 0: 2.5 (unit: slm), a mixed gas pressure of 6 × 10 ⁻⁵ Torr is applied to perform an oxygen / argon mixed gas plasma process to form a plasma-processed surface to form a barrier-based substrate. Lumber was manufactured. (2). Next, after forming a desired printed pattern on the surface of the plasma-treated surface of the barrier substrate manufactured in the above (1),
A two-component curable polyurethane-based laminating adhesive was used on the entire surface including the printed pattern, and this was applied to a film thickness of 5.0 g / m 2 by the gravure roll coating method in the same manner as described above.
² Laminate by coating so that it is dry
An adhesive layer was formed. Next, a 15 μm-thick biaxially stretched nylon 6 film is superposed on the surface of the laminating adhesive layer formed as described above, and then the barrier substrate and the biaxially stretched nylon 6 film are laminated. Dry laminate was laminated. Further, a two-component curable polyurethane-based laminating adhesive was used on the surface of the biaxially stretched nylon 6 film laminated with the dry laminate as described above, and the gravure roll coating method was used in the same manner as above. With the film thickness of 5.0
g / m ² (dry state) to form a laminating adhesive layer, and then apply a 60 μm-thick non-stretched film to the surface of the laminating adhesive layer. A laminate was produced by laminating and laminating a polypropylene film. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

Comparative Example 6 (1). A biaxially stretched polyethylene terephthalate film having a thickness of 12 μm was used and mounted on a delivery roll of a plasma-enhanced chemical vapor deposition apparatus. Then, under the following conditions, the above biaxially stretched polyethylene terephthalate film was used. On the corona-treated surface of the film, a deposited film of silicon oxide having a thickness of 200 ° was formed. (Evaporation conditions) Evaporation surface; Corona treated surface Introduced gas amount: Hexamethyldisiloxane: Oxygen gas: Helium = 1.0: 3.0: 3.0 (unit: slm) Degree of vacuum in vacuum chamber; 6 × 10 ⁻⁶ mBar Degree of vacuum in the deposition chamber; 2 to 5 × 10 ⁻³ mBar Cooling / electrode drum supply power; 10 kW Line speed; 100 m / min Immediately after the formation, a glow-discharge plasma generator was used to apply a power of 9 kW, oxygen gas (O ₂ ): argon gas (Ar) = 7.0: 2.5 ( Unit: slm) is used, and the mixed gas pressure is 6
Oxygen / argon mixed gas plasma treatment is performed at × 10 ^-5 Torr to reduce the surface tension of the silicon oxide deposited film surface to 54 dy.
A plasma treated surface improved by ne / cm or more was formed. Further, on the plasma-treated surface formed as described above, an epoxy-based silane coupling agent (8.0% by weight) and an anti-blocking agent (1.
0% by weight) and thoroughly kneaded, using a gravure roll coating method so that the film thickness becomes 0.5 g / m ² (dry state). And then dried to form a primer layer to produce a barrier substrate. (2). Next, after forming a desired printed pattern on the surface of the primer layer of the barrier substrate manufactured in the above (1), a two-component curable polyurethane laminate is applied over the entire surface including the printed pattern. Using an adhesive for this, as described above,
The film thickness is 5.0 g / m2 by the gravure roll coating method.
² Laminate by coating so that it is dry
An adhesive layer was formed. Next, a 15 μm-thick biaxially stretched nylon 6 film is superposed on the surface of the laminating adhesive layer formed as described above, and then the barrier substrate and the biaxially stretched nylon 6 film are laminated. Dry laminate was laminated. Further, a two-component curable polyurethane-based laminating adhesive was used on the surface of the biaxially stretched nylon 6 film laminated with the dry laminate as described above, and the gravure roll coating method was used in the same manner as above. With the film thickness of 5.0
g / m ² (dry state) to form a laminating adhesive layer, and then apply a 60 μm-thick non-stretched film to the surface of the laminating adhesive layer. A laminate was produced by laminating and laminating a polypropylene film. (3). Next, two sheets of the laminated material manufactured as described above are prepared, and the surfaces of the unstretched polypropylene film are superimposed on each other.
A three-sided seal-type soft packaging bag having a seal portion formed by sealing and having an opening at the top was manufactured. The three-way seal-type soft packaging bag manufactured as described above is filled with water from its opening and packed, and then the opening is heat-sealed to form an upper seal. A packaged semi-finished product is manufactured, and then the packaged semi-finished product is placed in a retort pot and heated at a temperature of 12
0 ° C., a pressure, 2.1Kgf / cm ² · G, time, was retorted retorting conditions of 30 minutes.

EXPERIMENTAL EXAMPLE The oxygen permeability and water vapor permeability before and after the retort treatment of the laminated material forming the soft packaging bag constituting the retort food manufactured in Examples 1 to 4 and Comparative Examples 1 to 6 described above. And were measured. Moreover, the bending resistance was measured for the laminated material forming the soft packaging bag constituting the retort food manufactured in Examples 1 to 4 and Comparative Examples 1 to 6 described above. Further, the functionality of the laminated material forming the soft packaging bag constituting the retort food manufactured in Examples 1 to 4 and Comparative Examples 1 to 6 was measured. (1). Measurement of Oxygen Permeability This is a condition of 23 ° C. and 90% RH in the United States.
The measurement was carried out using a measuring instrument (model name, OXTRAN) manufactured by MOCON. (2). Measurement of water vapor transmission rate This is the condition under the condition of temperature 40 ° C and humidity 90% RH,
The measurement was carried out with a measuring device (model name, PERMATRAN) manufactured by MOCON. (3). Measurement of bending resistance This is the temperature of the retort foods manufactured in Examples 1 to 4 and Comparative Examples 1 to 6 using a gelbo tester,
After being bent 100 times at 3 ° C., the oxygen permeability and the water vapor permeability of the laminated material forming the soft packaging bag constituting the retort food before and after the gelling were measured in the same manner as described above. (4). Measurement of organoleptic properties This means that the retort foods prepared in the above Examples 1 to 4 and Comparative Examples 1 to 6 were stored in an oven at 40 ° C. for one week, and then 5 testers The water after retort was subjected to a sensory test. X represents slightly worse than unretorted water, and x represents considerably worse than unretorted water. The above measurement results are shown in Table 1 below.

[0067] (Comparative Examples 3 and 4 have no change and are omitted.) In Table 1 above, the unit of oxygen permeability is [cc / m
² / day 23 ° C. 90% RH], and the unit of water vapor permeability is [g / m ² / day 40 ° C. 90% RH].
H].

As is clear from the measurement results shown in Table 1 above, it was confirmed that the samples according to Examples 1 to 4 were sufficiently practical in oxygen permeability and water vapor permeability. It was excellent in bending resistance, functionality, etc., was transparent, was excellent in visibility of contents, and was capable of metal detection by a metal detector. On the other hand, those according to Comparative Examples 1 and 2 are excellent in oxygen permeability and water vapor permeability, but lack in bending resistance and lack in visibility of the contents. The detection is impossible, and those according to Comparative Examples 3 and 4 are significantly inferior in oxygen permeability and water vapor permeability, and further, lack in functionality, and according to Comparative Examples 5 to 6. Those were remarkably lacking in flex resistance, and were not sufficiently satisfactory in terms of functionality.

[0069]

As is apparent from the above description, the present invention focuses on a barrier substrate and a barrier resin layer in which an inorganic oxide vapor-deposited film is provided on one surface of a substrate film. ,
At least a barrier substrate having an inorganic oxide vapor-deposited film on one surface of the substrate film, a barrier resin layer,
A laminated material is manufactured by laminating the toseal resin layer, and then the laminated material is used, and the laminated material is formed into a bag to produce a bag-shaped container body. To produce a packaged semi-finished product by filling and packaging the food and drink, etc.
Produce a retort food by applying retort treatment such as pressurized heat sterilization at about f / cm ² · G for about 20 to 60 minutes,
Heat resistance, pressure resistance, water resistance, heat sealability, pinhole resistance
Excellent in various physical properties such as resistance, piercing resistance, etc.
Excellent barrier properties and transparency to prevent the transmission of oxygen gas, water vapor, etc., withstands the heat treatment accompanying the processing such as retort treatment, and further reduces the weight and weight of containers and packaging waste, and manufactures them. To reduce the manufacturing cost by shortening the process, for example, filling and packaging various foods and beverages such as cooked foods, seafood paste products, frozen foods, boiled rice cakes, mochi, liquid soups, seasonings, etc. It is useful and can produce a pouch for retort which is excellent in suitability for filling and packaging of the contents, quality preservation and the like.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a layer structure of a laminated material constituting a retort pouch according to the present invention.

FIG. 2 is a schematic cross-sectional view showing a layer structure of an example of a laminated material constituting a retort pouch according to the present invention.

FIG. 3 is a schematic cross-sectional view showing a layer structure of an example of a laminated material constituting a retort pouch according to the present invention.

FIG. 4 is a schematic perspective view showing a configuration of a retort pouch according to the present invention, which is manufactured by using the laminated material shown in FIG. 1 to form a bag.

FIG. 5 is a schematic perspective view showing a configuration of a retort pouch according to the present invention, which is manufactured by using the laminated material shown in FIG. 1 to form a bag.

FIG. 6 is a schematic configuration diagram showing an outline of an example of a take-up type vacuum evaporation apparatus.

FIG. 7 is a schematic configuration diagram showing an outline of an example of a plasma chemical vapor deposition apparatus.

[Explanation of symbols]

A, A ₁ , A ₂ Laminated material 1 Base film 2 Deposited film of inorganic oxide 3 Barrier base material 4 Barrier resin layer 5 Heat-sealing resin layer 6, 6a Laminate adhesive layer 7 , 7a Melt extruded resin layer 8 Seal 9 Opening B Three-way seal-type bag-shaped container body 10 Contents 11 Upper seal C Packaging semi-finished product D Retort food

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 65/40 BRZ B65D 65/40 BRZD 4K029 BSG BSGD 4K030 BSN BSND 81/24 81/24 K C23C 14/08 C23C 14/08 A 14/20 14/20 A 16/40 16/40 F term (reference) 3E064 AA03 AA04 AA05 AA06 AA08 AA11 AB03 AB11 BA24 BA26 BA30 BA34 BA36 BA37 BA44 BA54 BA55 BA60 BB03 BC01 BC08 BC13 BC18 BC20 EA18 FA01 FA03 GA01 HM01 HN05 3E067 AA03 AA04 AB01 AC01 BA12A BB25A CA06 CA07 CA11 CA17 CA24 EA06 EB01 EB22 EE48 FA01 FB13 FC01 GC02 3E086 AA02 AB01 AD01 BA04 BA15 BB02 BB05 BB41 BB51 A18B14A02A87B14A18B14A18A14A AK03D AK21C AK42A AK48C AK48K AK69C AL05C AR00B AR00C AR00D AT00A BA04 BA07 BA10A BA10D DA01 EH66B E J38A GB16 JB07 JC00 JD01 JD01B JD01C JD03 JD04 JJ03 JL12 JL12D JN01 4K029 AA11 AA25 BA43 BA44 BD00 CA01 CA02 DB03 JA10 KA01 4K030 AA06 AA09 AA14 BA44 CA07 CA12 DA08 FA03 GA14 LA24

Claims (10)

[Claims] At least one of a barrier substrate having an inorganic oxide vapor-deposited film on one surface of a substrate film, a barrier resin layer, and a heat-sealing resin layer is sequentially laminated. A pouch for a retort characterized by being made of a laminated material. 2. The retort pouch according to claim 1, wherein the laminated material is laminated via an adhesive layer for laminating. 3. The pouch for a retort according to claim 1, wherein the barrier base material is provided with a primer agent layer on the surface of the inorganic oxide deposited film. 4. The method according to claim 1, wherein the base film is made of a biaxially stretched resin film.
Pouch for retort described in. 5. The pouch for a retort according to claim 1, wherein the inorganic oxide vapor-deposited film is formed by physical vapor deposition or chemical vapor deposition. . 6. The pouch for a retort according to claim 1, wherein the vapor-deposited film of an inorganic oxide comprises a vapor-deposited film of aluminum oxide formed by physical vapor deposition. 7. The retort pouch according to claim 1, wherein the inorganic oxide vapor-deposited film comprises a silicon oxide vapor-deposited film formed by chemical vapor deposition. 8. The method according to claim 1, wherein the barrier resin layer comprises an MXD6 nylon resin layer, an ethylene-vinyl alcohol copolymer resin layer, or a polyvinyl alcohol resin layer. The retort pouch to be described. 9. The method according to claim 1, wherein the barrier resin layer comprises a multilayer laminated resin layer including an MXD6 nylon resin layer, an ethylene-vinyl alcohol copolymer resin layer, or a polyvinyl alcohol resin layer. Item 10. A retort pouch according to any one of Items 1 to 8. 10. The method according to claim 1, wherein the heat-sealing resin layer comprises a polyolefin resin layer.
The pouches for retort described in any one of Items 1 to 9.