TW201400366A - Paper container and manufacturing method thereof - Google Patents

Abstract

To provide a food container made of paper based materials which is constituted by a resin film and paper, and is used for baking or steaming pastries, bread, etc., wherein the resin film has an increased conformal property. A paper container is formed by molding, with a male die and a female die, a lamination film of stretched resin film and paper, and after the molding, the film is heated at a temperature about 80 degrees to 190 degrees, lower than the melting point of the stretched resin film, for more than 80 seconds and less than 30 minutes,

Description

Paper container and method for manufacturing paper container

The present invention relates to a paper container for baking or cooking a snack, a bread, or the like, or a paper container for storing the food material, or a paper container and a paper container for other uses.

For example, in a state in which a material such as a snack, a bread, or the like is placed in a container having a curled edge, and baked or cooked to produce a snack or a paper, the container having a curl is stored in the container. It is used as a sale, and the use of each material.

In other words, the baking material is further placed in a cylindrical baking mold to be heated and baked to produce a snack, a bread, and is usually used to manufacture the material for baking. At the time of cooking or during expansion, the paper container having the curled side of the snack or the bread is baked in a beautifully swelled manner.

Further, the curling portion is a necessary beading portion which can be beautifully baked by enlarging this lateral expansion by elastic support.

Thereby, the container having the crimping portion having the curling portion is manufactured by a plurality of types.

First, basically, for example, a container in which a white paper, a cellophane, or the like is sandwiched between a male and a female mold of a molding machine and molded into a container having a curl is used.

In this case, the portion to be crimped is merely crimped to form a curl, and is not easily maintained in a molded state. For example, when the foodstuff is stored in the container having the curled edge, the curling is supported by the weight of the foodstuff. Open.

In such a state, it will be opened by the weight of the foodstuff, that is, it will be opened, and even if it is pressed by the baking mold, the foodstuff may be sprinkled or expanded in the state of being rolled up in the state of being spread in the baking mold. Bake well and become a poorly looking package.

Therefore, it is an amount of foodstuff which accommodates the extent that the curling does not open.

In addition, when it is used as a baking container or a retort container, there is a concern that it is a snack or a bread in a container which is placed in a curled and deformed state during baking and cooking.

Here, in the case of baking, during cooking, a baking mold or a steaming mold is placed, and baking or cooking is carried out while retaining shape retention.

Therefore, the original slight deformation is the one that is adopted within the estimation.

In this case, in order to make the baking and the cooking more uniform, it is possible to perform the conditioning as described in Japanese Patent Laid-Open No. Hei 10-94357 (Patent Document 1). container.

In addition, it is premised on the premise that the baking mold and the steam mold are placed in the shape retaining property, and the shape retaining property for maintaining the degree of the gap between the material after the conditioning and the container is also present. Japanese Patent Laid-Open No. Hei 11-313615 (Patent Document 2).

Further, the cylindrical paper container and the paper container having the corner portions are also deformed by inadvertent expansion of the side wall portion, and it is necessary to use paper having a thickness in order to improve moldability.

Patent Document 1: Japanese Special Kaiping 10-94357

Patent Document 2: Japanese Patent Laid-Open No. 11-313615

As described above, the toughness of the disadvantages of the container formed of the paper sheet is insufficient, that is, for example, when it is inadvertently spread about the curled portion of the container having the curled edge, of course, in the baking stage and the cooking stage It is carried out using a mold, so that the mold is prevented from being inadvertently opened, that is, the curl is stretched.

Therefore, on the premise of using the mold, according to Patent Document 1, there is provided a container in which a plurality of small holes are formed in a laminated film of paper and a polyester film, and the container can be quickly baked as a whole.

At this time, the paper is laminated with the polyester film, and the film is used to manufacture a container having a crimped container.

This is a user who seeks heat resistance and oil resistance of the polyester film, and does not perform any treatment for maintaining special shape retention.

Therefore, in the configuration of the prior art, the curling is also carried out, and the mold is used for baking, and the container having the curling is placed in the mold so that the curling is not opened. Bakers, when rolled out from the mold, the curling will still slightly open.

Next, in Patent Document 2, it is a case where the curled portion of the container is prevented from being baked in the mold during baking, and the separator between the baked material and the curl of the container is prevented.

Therefore, the shape retaining property is higher than that of a conventional container having a curled edge, and it is premised on the degree of curling of the material as it expands during baking, and the mold is maintained at least on one side. Shape, and further has a somewhat conformal construction in the crimped portion.

Thereby, the paper is formed of a conformal synthetic resin, and the laminated paper is made of, for example, polyethylene or the like.

In this case, for example, after the heat molding is performed in about 120 degrees in advance, the conformal synthetic resin is held in the molding die at 160 degrees for about 10 seconds or 20 seconds to shrink the shape retaining resin.

Thereby, if the shape retaining property is a certain degree or the strength is extremely low, the curling when the container having the curled edge becomes a simple stretcher.

Therefore, even if it is formed in this way, when it is used as a container for baking, the curling portion may be stretched regardless of the expansion of the material, and the mold is used as a premise.

In such a case, when it is used as a container for baking, it is premised that the baking container is further placed in the mold during baking, and it is cumbersome to insert the paper container into the mold, and it is desirable to provide a kind of A container having a crimped container that is baked only in a paper container using a mold.

This is because the preparation, cleaning, and the like of the mold are not only troublesome, but also the work of placing the containers having the curled ones into the mold one by one is extremely troublesome, and it is expected to be able to solve the problem by eliminating such work as the biggest problem.

Alternatively, it is not only the cylindrical container having the curled edge that is formed in a triangular shape having a triangular shape, a square shape or a high shape, but the container is formed into a folded shape to form a container, but the folded portion is in any case Will open, And for easy to get out.

Therefore, although a certain degree of formability is maintained by covering the lid, the forming strength thereof is low anyway, and only a container which can be used for a very short period of time can be given an inexpensive impression.

Accordingly, it would be desirable to provide a container that allows the container to have further forming strength to prevent aliasing and fold-in portions.

Further, the side surface, the side wall portion, the bottom portion, and the like of the paper container are easily deformed by the contents, and for example, the container having a poor appearance and not only a side wall being bent or twisted may be caused by the contents during storage. The side portion and the bottom portion are deformed and become unusable.

At this time, although the strength of the container is increased by increasing the thickness of the paper as much as possible, not only the cost becomes enormous, but also the use of thick paper for forming requires a strong molding machine, and the manufacturing man-hours become extremely large.

Therefore, from these points, it is expected to provide a paper container which has high strength at the time of molding, has moldability, is not deformed, or can prevent the curl from being opened as much as possible.

Therefore, the invention of claim 1 is a paper container in which at least a resin film and a paper are formed by using a male type and a female type, wherein the resin film is formed of an extended resin film, and the male and female types are utilized. After the molding, at least a temperature of from 80 to 190 degrees below the melting point of the resin film is stretched for a time of from 80 seconds to 30 minutes, and the above problems can be solved by the invention.

Or a paper container according to the invention of claim 2, wherein the molding is performed at a temperature of at least about 80 to 190 degrees for at least 80 seconds to 30 minutes while maintaining the molding state by molding the male mold and the female mold. The same time heating is also the same.

In the case of the invention of claim 3, a paper container in which a resin film is formed of a polyethylene film, or a paper container in which a resin film is formed of a polypropylene film, or a paper container in which the resin film is formed, or A paper container in which a resin film is formed of a polyester film can also be used as in the invention of claim 5.

In particular, as in the invention of claim 6, a paper container in which a polyester film is formed of a polyethylene terephthalate film is most suitable.

In these cases, in particular, according to the invention of claim 7, the resin film has a thickness of about 3 μ to 30 μ, and the paper has a thickness of about 20 g/m 2 to 200 g/m 2 , and the paper container is the easiest container to be used. .

Further, this is the invention of claim 8, and the paper container may be a container for baking, such as the invention of claim 9, or a container for cooking.

Further, as in the invention of claim 10, a paper container may be formed from a cylindrically shaped container including an ellipse, as in the invention of claim 11, and may also be used for paper having a triangular, quadrangular or polygonal container having a corner portion. A container, particularly as in the invention of claim 12, may also be a paper container having a crimp.

Further, according to the invention of claim 13, the crucible may be coated or laminated on at least a part of the surface of the film of the laminated resin film and the paper.

Further, according to the invention of claim 14, the heating time after the molding of the male and female molds may be carried out for a period of time of 5 minutes or longer and 30 minutes or shorter.

Alternatively, as in the invention of claim 15, the temperature may be replaced by a temperature exceeding 190 degrees instead of the temperature of 80 to 190 degrees.

Further, in the invention of claim 16, the temperature is maintained in the heat-insulating state instead of the temperature of about 80 to 190 degrees, and the heat-retaining state can be used instead of the temperature to maintain the temperature exceeding 190 degrees. .

Alternatively, as in the invention of claim 18, it may be a heating or holding state for more than 30 minutes.

In addition, according to the invention of claim 19, there is provided a process of laminating a resin film and a paper, and a film formed by forming the paper container using a male and a female mold, and having After the molding, a method for producing a paper container which is heated at a temperature of 80 to 190 degrees and heated for 80 seconds or more at a temperature below the laminated film can be used to produce a desired paper container.

At this time, as in the invention of claim 20, it is also possible to carry out heating for 80 seconds or more at a temperature of 80 to 190 degrees after molding, and to perform heat retention at a temperature of 80 to 190 degrees after molding for 80 seconds or more. To maintain the temperature of the project.

Alternatively, as in the invention of claim 21, the heating of the temperature of 80 to 190 degrees may also be carried out using a temperature of more than 190 degrees, such as the invention of claim 22, at a temperature of 80 to 190 degrees. Under The process of maintaining the temperature in a state of keeping warm for more than 80 seconds, or a method of manufacturing a paper container for engineering using a heat retention state exceeding 180 degrees.

According to the above configuration, according to the present invention, it is possible to manufacture a container which is extremely useful in heat resistance and sanitary surface, and in particular, a paper container having high shape retention property can be provided.

In particular, according to the invention of claim 1, the formed paper container is heated at a constant temperature for a certain period of time, thereby enhancing the shape retention of the resin film and producing an extremely strong paper container.

In particular, since it is sturdy by crystallization or solidification, deformation of the erected wall portion or the like can be prevented, and production of a container that can be used in various aspects is possible.

In this case, according to the invention of claim 2, it is possible to heat the resin layer while maintaining the molding state while molding the paper container, and to form the resin container by crystallization or solidification. become possible.

At this time, as shown in claim 3, it may be a polyethylene film, or a polypropylene film as shown in claim 4, or a polyester film as shown in claim 5, especially as shown in claim 6. It is most suitable to use polyethylene terephthalate.

As described above, it is possible to manufacture using various thermoplastic resin films, and it is an invention which is extremely extensive and has high use value.

That is, heating has been performed at the time of molding, and molding is performed therewith, or there are exceptions in which heating is performed in a very short time.

Although it is heated for a very short time, for example, about 10 seconds to 20 seconds, the heating at such a time and only the molding is hardly changed, and it is not crystallization or curing.

Therefore, the resin layer does solidify, or crystallizes due to different materials and begins to become firm, and the hardness can be judged, and a substantially solid container can be formed, and at least 80 seconds after heating and press molding at the time of molding. The above is preferably carried out for 2 minutes or more, or in order to more reliably produce hardness, it is necessary to perform heating for more than 5 minutes or in a heated environment.

Moreover, oil stains and the like can be prevented by using a polyester film or polyethylene terephthalate.

In the invention of claim 7, the user of the resin film and the paper material which are compatible with the material of the most convenient paper container can be molded into a container which is extremely diverse and requires rigidity.

Conventionally, although a paper container using a material having such a thickness is often used, it is not so hard and is susceptible to deformation of a wall portion, etc., but according to the present invention, it is possible to provide an extremely strong curing despite a paper container. Container.

Therefore, according to the invention of claim 8, by using as a container for baking, it is possible to provide a paper container which is not distorted.

In particular, even if the material of the bread and the snack which is inflated at the time of baking is used, it can be made that the deformation of the container can be prevented and the appearance is good.

Further, according to the invention of claim 9, even a container for cooking can be used. It can prevent the deformation of the container caused by the moisture during cooking, and can be made into a good appearance.

Further, as in the invention of claim 10, a container having a cylindrical shape including an ellipse can also be used. As in the invention of claim 11, a triangular, quadrangular or polygonal container having a corner can also be used to prevent each container. The deformation of the wall or the bottom or the like can be surely maintained in a predetermined shape for the user.

Furthermore, as in the invention of claim 12, it is also possible to eliminate the wall portion of the bead portion which is opened, that is, opened and firmly formed in a substantially vertical state, for the container having the beaded portion, and Provide a paper container with a good appearance.

In this way, for example, it can be used as a rolled paper container for snacks such as chocolate. For example, when a material such as chocolate is placed in a container, it is not necessary to use a mold for preventing the curl from being stretched, and the like, and it is simple and inexpensive. Carry out the filling.

Furthermore, a chocolate dessert such as a good appearance can be provided.

Alternatively, a container with a crimp can also be used as a bread, baked snack or a bake or retort container user who can also serve as a cooking vessel.

In particular, in this case, since the deformation of the curled portion is particularly caused, the container can be baked or cooked in a metal mold or the like during baking or cooking, and can be baked without using a special mold. Bake or steam, etc.

Further, even in the state of being baked or cooked, it can be used as a container for curling paper having a good appearance, and can be sold in such a state.

For example, you can bake and cook without using a mold, and you don’t need it at all. The use of a mold, an operation of placing a paper container in a mold, a cleaning operation, and the like can be an inexpensive and highly efficient manufacturing process.

Next, according to the invention of claim 13, it is also possible to easily unload the one of the coating or laminating products when the paper containers are unloaded one by one.

That is, such a paper container is a plurality of stacked ones for storage and transportation, and the user is detached one by one from the overlapping state during use.

Therefore, when such a container is detached, the paper container of the present invention which is not easily deformed is particularly difficult to remove.

Therefore, it can be easily removed by coating or laminating at least a part of the crucible.

Further, according to the invention of claim 14, when coating or laminating, it is more time-consuming due to the effect of the crucible, and therefore, for example, even if it is about 80 seconds, it can be slightly cured, but it is most suitable. It is preferable that the heating is performed within 5 minutes or more and 30 minutes or so. With such a configuration, even if it has a paper container which can be solidified or crystallized, it becomes a strong paper container.

According to the invention of claim 15, the heater can be heated at a temperature exceeding 190 degrees.

This is based on the relationship between the paper material and the paper material. First, the paper material is not burned. The premise is about 180 degrees or less. For example, when using high-quality paper, thick paper, etc., or a little burnt, it will not be on the product. When the problem is caused, even if the heating is performed at a temperature exceeding 190 degrees, the product will not cause a problem, even if it is at a temperature exceeding 190 degrees, the resin layer can be surely hard. The curing of the lipid layer or crystallization due to the difference in material, and hardening by hardening, especially in the case of heating at a high temperature, can be hardened in a shorter time.

According to the invention of claim 16, the heat retention condition may be replaced by a temperature of about 80 to 180 degrees, whereby the temperature may be placed in a certain temperature environment, and the influence of the temperature may be made on paper. The container itself is produced, the resin layer is cured, or crystallized depending on the material, and can be made stronger than hardening.

In particular, even if a heating condition is applied after applying a certain temperature to the heating device, or there is no heating device itself, an insulating environment capable of maintaining the heating state at the time of molding and maintaining a certain temperature can be manufactured, and in particular, it is desirable to have Insulation equipment, but at least under the condition of heat preservation, can be fully hardened and firmly formed.

Further, since the maintenance of the heating state is not particularly required, it is also possible to reduce the heating cost and the like.

According to the invention of claim 17, the heat retention can be carried out at a temperature exceeding 190 degrees under the heat retention condition, and even in such a state, the resin layer can be surely cured and solidified or crystallized depending on the material. And become stronger.

In particular, since the heat is not maintained in a heated state in the case of heat retention, it is possible to temporarily heat the temperature at a temperature exceeding 190 degrees, and to maintain the heat retention condition, and also to reduce the heating cost.

Next, according to the invention of claim 18, heating or holding may be performed for 30 minutes or more, and heating and heat preservation for a long period of time may cause hardening of the resin layer and promote curing and crystallization.

Originally, the most suitable temperature time can be spent on heating or heat preservation depending on the material of the paper material or the thickness of the resin layer, and can be set as an optional wide and appropriate heating and heat preservation for 30 minutes or more. use.

According to the invention of claim 19, by using such a process, the shape retention of the resin film of the formed paper container can be improved, and the production of an extremely strong paper container can be performed.

In particular, since the resin layer is more crystallization or solidified, it is possible to prevent deformation or the like of the standing wall portion, and it is possible to manufacture a container which can be used for various purposes.

According to the invention of claim 20, the special heating state is not maintained, and it is only necessary to maintain the temperature under the heat retention condition, and it is not necessary to maintain the special heating state, as long as it is placed under the heat preservation condition, and the cost can be reduced, and the equipment can be reduced. And so on.

Moreover, by this method, it is of course possible to manufacture a homogenous paper container.

Further, according to the invention of claim 21, the heating at a temperature exceeding 190 degrees or the invention according to the claim 22 is used, and the heat retention in a heat-insulated condition exceeding a temperature of 190 degrees is used.

Therefore, even if the temperature exceeds 180 degrees, the resin layer can be surely cured and cured, or crystallized by the difference in material, and can be cured in a shorter time by heating at a high temperature.

The best form for implementing the invention

First, the basic structure of the paper container of the present invention is a paper material 1 in which a stretched resin film 2 such as a polypropylene film, a polyethylene film, a polyester film or the like is laminated on a pure white paper, as shown in Fig. 1, The sheet material is pressed by the molding machine of the male type 4 and the mother type 3 to produce a container having a curled edge.

A polyester film such as a polyethylene terephthalate (PET) film is formed by laminating a paper material such as pure white paper.

At this time, of course, it is also possible to perform heating for molding simultaneously with pressurization.

This pressurization and heating are pressurization and heating in a very short time at the time of molding.

In this case, the layer located on the inner surface of the paper container may be either the resin film 2 or the outer surface as the resin film layer.

It suffices to constitute a suitable laminated state according to the use.

For example, by using the inner layer as polyethylene terephthalate, a convenient paper container for foods can be provided.

Further, as the paper material 1, in addition to pure white paper, it may be cellophane or kraft paper.

Further, the resin film may be formed of a laminated film by lamination, application by coating, or adhesion with a paper material.

For example, a hot-melt film such as another film such as a polyethylene (PE) film or the like may be interposed between the two to be fused.

Therefore, in addition to the lamination of the superposed film, even if a resin such as polyethylene terephthalate is applied to form a laminated film in a laminated state, it is equivalent to a laminated film.

In this case, the stretched resin film 2 may be formed into a film shape at the lamination stage, and is also equivalent to a film or a sheet.

Further, it is not limited to a film shape, and even a sheet shape may be used.

Therefore, in addition to the laminated film, it is also possible to apply polypropylene or polyethylene to a layered state.

Needless to say, it is not limited to the two-layer laminate, and may further have other films for fusion or other films for other applications such as air leakage, liquid leakage, or friction resistance reduction, and may have both. Next, it is also possible to use a laminate film of a plurality of layers of a resin film or a sheet of a laminate.

Further, as for the stretched resin film, although the biaxial stretching is most suitable, a one-axis stretch film may also be used.

In the configuration of the present invention, an example of a paper container is a paper container having a curl, and an example of a cylindrical shape is shown.

In the present specification, the resin film is a concept including a sheet material. Further, by coating a resin material on a paper material to form a laminate, a resin formed in a film shape or a sheet shape is formed to form a resin. The film is clearly indicated.

Fig. 2 is a conceptual view showing a sheet material which must be sandwiched between the male type 4 and the female type 3 before molding.

The shape of the container is formed by press molding by sandwiching the male mold 4 and the female mold 3 under pressure.

In this way, the person is formed by sandwiching the pressure of the two.

In addition, the forming is not only pressurized, but may be formed by heating. By.

By this heating and pressurization, for example, a paper container having a curl is formed in the configuration shown in Fig. 1 .

Fig. 3 shows that a resin film such as polyethylene terephthalate or the like which sandwiches the paper 1 and the resin film 2 by the male type 4 and the mother type 3 is pressed, and further formed by heat forming as needed An example of a state in which a flat material is molded into a container shape.

Of course, a polyethylene film, a polypropylene film, or the like can also be used.

Thus, the resin film 2 of the sheet material is surely formed as it is formed.

Further, an example of a paper container after molding is shown in FIG.

In the present invention, it is possible to heat the film at a constant temperature for a certain period of time after the molding, that is, to maintain the shape of the resin at a constant temperature, thereby solidifying the resin layer and maintaining the molded state firmly.

In the case where the film layer is crystallized or solidified, the curled portion is formed in the figure so as not to be stretched.

In addition, even in a normal container, it is possible to form a solid shape at each position such as a bottom surface, a side surface, or a wall surface, and it is possible to provide a paper container which is not easily deformed.

For example, in a state of being heated to about 80 to 180 degrees, the shape after molding of the molding machine can be maintained by heating for at least 80 seconds or longer.

For example, when a thin paper material or polyethylene terephthalate is used, it is heated at about 185 degrees for about 2 minutes to 5 minutes to form a container that is surely cured.

Of course, when a sheet material having a thickness is used for a thicker paper material, the best curing state can be obtained by further correcting the temperature and time.

Further, even a low temperature can be sufficiently cured by a long period of time, and it can be used separately depending on the material, the condition, and the like.

Further, in the cured state, at least as shown in FIG. 3, it is difficult to spread the curl of the container having the curled edge. For example, even if the material of the snack or the bread is baked, the cured state of the degree of carelessly being opened is heated at least to at least In the state of about 80 to 190 degrees, it can be achieved by heating for at least 80 seconds.

In this case, the relationship with time may be at least 80 seconds or more, and heating may be performed for a longer period of time even if it is heated for about 30 minutes or maintained in such a state.

The curing can be performed at least in the presence of the material itself in a state that can be withstood in use.

Therefore, the appropriate time is within 30 minutes, but it is not excluded from exceeding the time as needed, but may be exceeded.

Further, although it is most suitable to take off from the original molding die and perform heating, it is of course possible to maintain the above-described temperature state in the state in which the mold is placed.

Thereby, the paper container formed from the laminated film can also be cured.

Furthermore, the temperature is not limited to 190 degrees, and may be exceeded.

For example, it may be any temperature of about 195 degrees, 200 degrees, or 210 degrees.

Originally, there will be scorching in thin paper, etc. When the temperature is high, the paper itself will Charred, as far as possible, is the most suitable paper state that will not burn.

However, when using a fine paper, a thick paper or the like, even if it is 190 degrees or more, it will not be burnt and it can be completely formed as a paper.

Furthermore, a little charring depending on the purpose of use will also be completed without affecting the value of the commodity.

Therefore, it is of course possible to perform heating at a high temperature exceeding 190 degrees.

In general, it is most suitable for use as a high temperature in the range of 190 degrees or more and 220 degrees or less.

Of course, the paper can be maintained at a high level, and the high temperature of the resin material does not deteriorate at a high temperature as an allowable range. As long as this can be maintained, a high temperature of more than 220 degrees can be used.

At least the heating or holding of the temperature below the melting point of the polyester film may be carried out.

In the case of the polyethylene film or the polypropylene film, the melting point is lower, but it is only required to heat or heat the temperature below the melting point, that is, at a temperature of 80 degrees or higher.

Originally, it was assumed that individual films should be heated or kept at a temperature that would not exceed the melting point.

Further, in the case where the polyester film is heated to, for example, 190 degrees or more in a short period of time, it is sufficient to gradually form a low temperature.

This is also the same even when the temperature is below 190 degrees, and of course, it can be gradually formed into a low temperature once it is heated to about 80 to 190 degrees.

Therefore, even if the temperature is raised from a temperature exceeding 190 degrees, for example, to a high temperature of about 191 degrees to 220 degrees, the temperature is maintained at a low temperature, or The heating is performed for a short period of time at any high temperature of 250 degrees or less, such as 220 degrees below the melting point of the film, and thereafter is made to be hotter than the lower temperature, for example, 80 to 190 degrees or in the state of the peripheral temperature or lower temperature. Then, the resin layer of the paper container is hardened, and it becomes a solid state of hardening in a state of being substantially solidified or crystallized.

Furthermore, when the heating is more than 80 degrees to 190 degrees or 190 degrees, as long as the paper container can be heated for a certain period of time at such a temperature, the paper container can be placed in the heat preservation state. The above insulation temperature environment can be used.

Therefore, it is not necessary to place it in a heated state or to be placed in a heat-insulated state, or to perform a heat-holding state or a heating state at a varying temperature.

In addition, although it is represented by a low temperature state of 80 degrees, this is a low temperature lower limit level which shows the time from a high temperature to a low temperature, for example, and does not mean that it takes more time to 80 degrees or less.

At least, it is suggested that the heat is applied to the heat or the heating environment of about 80 degrees or more as an example of the heat retention state.

Therefore, as a limit of the low temperature in the heated state for the cured state as the resin layer is cured or crystallized, for example, when an extended polyester film (polyethylene terephthalate film) is used, 120 to 160 The degree is most suitable, for example, if the temperature of the burnt by paper or the like is not more than 160 degrees, for example, heating of more than 160 degrees to 190 degrees or more than 200 degrees of 190 degrees is most suitable.

Next, the thickness of the paper 1 may be any thickness of paper used for a general paper-made container having a curl, for example, for about 20 g/m 2 to 200 g/ It is most suitable for use in the square meter or so.

Of course, thinner paper materials and thick paper materials can also be used.

In particular, the thin paper material is preferably a temperature of about 170 degrees or less in consideration of charring, etc., but a paper container having no problem of burning or a thick paper having excellent heat resistance may be used. Use at high temperatures.

Next, the thickness of the resin film 2 may have a thickness of about 3 μ to 30 μ, and is not limited to the thickness, and may be any thickness as required.

Further, as the temperature suitable for heating, the most suitable temperature as described above is preferably about 120 to 200 degrees, and about 120 to 160 degrees, when an extended polyester film (polyethylene terephthalate film) is used. Suitable for.

Next, it is most suitable for the holding time after heating from 2 minutes to 10 minutes.

The relationship between the commonly used thin paper and the thin film is that the above-mentioned left and right time can be sufficiently cured.

On the other hand, when a polyethylene film or a polypropylene film is used, it is most suitable depending on the lower melting point, for example, 80 to 110 degrees.

However, the time may be appropriately determined depending on the thickness of the paper 1 and the film 2, and is not limited to the above-described time, and may be shorter or longer.

Further, it is also possible to perform heating and heat preservation by a method of gradually reducing the temperature to room temperature after heating for a long time.

For example, a 12 μm resin film is formed on a 70 g/m 2 meter using another adhesive member to form a laminated film, which is made straight by using The male type 4 and the female type 3 having a cup diameter of 90 mm and a height of 30 mm of the standing wall portion are press-formed, and the paper container is taken out in this state, and heated by 140 degrees for about 2 minutes. This makes it possible to obtain a container having a bead portion in which the wall portion is raised at almost right angles.

Further, the same optimum temperature can be obtained by heating at an individual temperature of 150 degrees and 160 degrees.

On the contrary, after heating at 170 degrees, scorching occurred in a part of the paper.

Next, a 12 μm resin film was formed on the 70 g/m 2 paper by using another adhesive member to form a laminated film by using a cup size of a cup size of 90 mm in diameter and 30 mm in height of the standing wall portion. 4 and the mother mold 3 are press-formed, and the paper container is taken out in this state, and the container is held at 130 degrees for about 4 minutes, whereby a container having a curled portion in which the wall portion rises at almost right angles can be obtained.

When heated at 110 degrees and 120 degrees for 4 minutes, respectively, the curled portion is slightly expanded.

Further, when heated at 140 degrees and 150 degrees for 4 minutes, a container having a curled portion in which the wall portion is raised at almost right angles can be obtained.

When this was heated at 160 degrees for 4 minutes, scorching occurred in a part.

This wall portion has the same configuration as the wall portion in the upright state obtained by the usual short-time heating and press working, but the wall standing state can be firmly maintained, and the wall can be prevented from being stretched. Become a person who can maintain a stable state.

In contrast, it is only by a short-time heat and pressure process or The wall portion in the upright state is a member that is stretched with only a slight force, and the shape of the container is unstable and easily deformed.

In this manner, the resin material as a whole is solidified or hardened by being heated or placed in a state of being kept warm for a certain period of time, and the resin of the standing wall portion is also hardened to firmly maintain the standing state and provide stability. The container has become a very epoch-making useful invention.

Therefore, the maintenance of this state is a conformalizer having an extremely high strength, and there is no deformation even if a material having a moisture-containing material is placed, and even if a mold or the like is not used during baking, By maintaining such a state, it is possible to bake a snack and bake a bread.

In this case, the hardening of the paper container is strong, and the hardened state of the resin layer may be different due to curing, and the resin layer may be cured in a state close to crystallization or crystallization due to a different resin.

In the present invention, it is not specific whether or not it is substantially cured or crystallized, and at least it is determined that the resin layer is hardened and is not limited to a theoretical constitution.

The following shows an embodiment of the relationship between time and temperature.

For example, when heating is performed at 160 degrees for about 20 seconds to 30 seconds, the curled portion that is almost in the initial state is stretched by its own weight, and it is impossible to maintain the standing state.

In other words, the shape retention is performed in a state in which it is expanded more than the expansion angle of the forming type.

Then, even if it is heated at 160 degrees for about 45 seconds, it can be preserved in a state of being expanded more than the forming angle of the forming type.

Therefore, at least about 80 seconds of heating is performed to form a state in which the stretching angle of the molding type can be maintained almost.

FIG. 5 is a view showing an example of a state of use, and shows an example of a molding stage of a container having a curled wall in an upright shape. For example, it is shown that a sheet material using ten sheets of paper is heated and pressurized by a male type 4 and a mother type 3. A diagram of an example of a state of molding.

By the configuration as shown in the figure, the manufacture of a large number of containers is possible at the same time.

Therefore, a certain temperature is further given for a certain period of time after the formation, whereby a cured, that is, hardened paper container can be obtained.

Fig. 6 shows, for example, 10 overlapping paper containers thus formed.

At this time, after the molding, the paper containers of the 10 overlapping states may be directly heated or kept at any time for at least 80 seconds or more in a state of being heated to about 80 to 200 degrees.

Thereby it can be surely cured or hardened.

Of course, it is also possible to perform heat-heating after one of the unfolding states.

Further, heating or heat preservation for a certain period of time after molding at a constant temperature is most suitable for rapid progress after molding, but heating or heat retention may be performed for a certain period of time.

After heating and pressurization at the time of molding, it is possible to promote crystallization, solidification or hardening by holding the steel at a constant temperature for a certain period of time.

In addition, it may be one in which the tantalum resin is coated on the outer surface or the inner surface. Or both.

Moreover, it may be applied to a specific place on one side.

In other words, it is also possible to form a laminated film in which a laminate of a ruthenium sheet or a ruthenium sheet or a ruthenium layer is applied to a laminated film of a resin film and a paper material 1, and the ruthenium is disposed on either side of the front surface. Yes, it can be used on either side or on one side.

Of course, it is also possible to coat the latter after forming.

In the above-mentioned overlapping state and the like, it is very troublesome to remove this, and it can be easily removed by coating the crucible.

In particular, after the ruthenium is applied, it is most suitable for a long time of heating and holding for a certain period of time at a constant temperature in consideration of ruthenium coating.

Of course, you can also raise the temperature slightly.

For example, by heating or holding at about 160 to 190 degrees for about 10 to 20 minutes, a paper container which is solidified or hardened can be formed.

Fig. 7 is an example of a state in which the position of the overlapped paper container is removed, and a part thereof has a flaw.

For example, the crucible may be applied to the front side of the inner surface or the crucible may be applied to the whole or a part of the wall portion.

In the figure, the outer surface of the resin film 2 is shown, and an example of the crucible 21 is applied to the inner wall portion of the container.

FIG. 8 is a view showing an example of a state in which the baked confectionery 5 is placed in a paper container having a curl according to the present invention.

In addition, although it is assumed that the container for baking and the container for cooking are used, the paper container of the present invention is not limited thereto, and it is only for storing food. The paper container can be used.

For example, it can also be used as a container for putting chocolate or the like into a container.

In particular, although the container having the curling is described, even if chocolate is placed, it can be used as a beautifully shaped and conformable paper container in which the curled portion of the container is not stretched.

Fig. 9 is a view showing an example of a paper container of another shape.

The configuration shown in the figure shows an example of a cylindrical paper container in which the diameter of the opening portion is slightly larger than the diameter of the bottom portion.

The paper container may be formed by molding of a male type and a female type, and the side peripheral surface portion may wrinkle during molding, but the pressure is applied to form a cylindrical shape, and the wrinkle pattern is provided. The circumference.

For example, although the manufacturer of the paper material using thin hands is used, the strength of the paper container itself is increased by using the configuration of the present invention, and the paper container can be used as a paper container which is not easily deformed even if the content is placed.

For example, it is a user who uses the same thick paper material, and can express the ease of use and softness of a thin paper container.

In this way, it is possible to manufacture the product at a lower cost and in a simple manner, and it is possible to provide a paper container having a good appearance.

In particular, when a thick paper material is used, it is extremely difficult to form the male and female shapes. Therefore, according to the present invention, an extremely efficient paper container can be manufactured.

Further, the cylindrical container shown in the figure is an example, and of course, it can be used for a cylindrical paper container having an elliptical shape or a paper having a special shape for each material based on a cylindrical shape. Container, or for opening A cylindrical paper container having the same shape as the bottom and different shapes of the materials.

Fig. 10 is a view showing an example of a paper container having a quadrangular shape having a corner portion.

As shown in the figure, for example, a paper container having a rectangular shape formed by folding a corner portion of a male and female mold into a rectangular shape is used to form a paper container having a corner portion folded into the crease.

The configuration shown in the figure is a configuration in which the folded portion 6 is formed at the corner portion, and the folded portion 6 is folded therein. Further, as shown in Fig. 11, the folded portion 6 is surely formed in the casing. It is solidified in the side state and can be formed into a box shape.

In the folding box which is a normal paper container, since the folding of the corner portion is opened, it can be used only as one form of the package, and the cardboard box having the strength is a member having strength using an adhesive member, a connecting member, or the like.

Therefore, it takes cost and time to form.

On the other hand, in the carton of the present invention, even if it is in a state of being folded in the folded-in portion 6, the weight of the carton is formed at a constant temperature for a certain period of time after molding, for example, by pressing the folded-in portion 6 by the male and female forms. Heating is performed or a state of being kept at this temperature, whereby the resin layer is solidified to maintain the molded state firmly.

Therefore, it becomes a paper container which can maintain the folding state, and can provide the corner part of intensity|strength.

Further, although the figure shows the case at the corner portion 4, it is not limited thereto, and may be used for the corner portion 3, or a pentagonal, hexagonal or more polygonal angle. Shaped paper container.

Further, a carton having a special shape, that is, a special shape having a circular arc portion and a corner portion, basically has a cylindrical portion and corresponds to a cylindrical paper container.

Therefore, even in the case of a container having a cylindrical shape, it is possible to have a container having a necessary folded portion, and not only the folded portion but also the solidification of the cylindrical shape is possible.

Next, Fig. 12 is a view showing another example of the paper container having the plurality of folding portions 6 at the corner portions, and is an example of forming the folding portion 6 by a plurality of folding portions, and further, as shown in Fig. 13, The folded portion 6 is formed in close contact with the side surface of the casing, that is, a solid casing can be provided by solidification.

1‧‧‧ paper

2‧‧‧Resin film

21‧‧‧矽

3‧‧‧ mother type

4‧‧‧ public

5‧‧‧Bake Dessert

6‧‧‧Folding Department

Fig. 1 is a view showing an example of a manufacturing process of a paper container of the present invention.

Fig. 2 is a view showing an example of a laminated sheet of a paper container of the present invention.

Fig. 3 is a view showing an example of a manufacturing process of the paper container of the present invention.

Fig. 4 is a view showing an example of a paper container of the present invention.

Fig. 5 is a view showing an example of a manufacturing process of the paper container of the present invention.

Fig. 6 is a view showing an example of a paper container of the present invention.

Fig. 7 is a view showing an example of a paper container of the present invention.

Fig. 8 is a view showing an example of a state of use of the paper container of the present invention.

Fig. 9 is a view showing an example of a paper container of the present invention.

[Fig. 10] Fig. 10 is a view showing an example of a folded state of a corner portion of a paper container of the present invention.

Fig. 11 is a view showing an example of a paper container of the present invention.

[Fig. 12] Fig. 12 is a view showing an example of a folded state of a corner portion of a paper container of the present invention.

Fig. 13 is a view showing an example of a paper container of the present invention.

1‧‧‧ paper

2‧‧‧Resin film

21‧‧‧矽

Claims (22)

A paper container is a paper container in which at least a resin film (2) and a paper (1) are laminated using a male type (4) and a mother type (3), wherein the resin film is made of an extended resin film After the formation of the male mold (4) and the female mold (3), the heating is performed at a temperature of at least about 80 to 190 degrees below the melting point of the stretched resin film for 80 seconds or longer and 30 minutes or shorter. The paper container according to the first aspect of the invention, wherein the shape of the male mold (4) and the female mold (3) is maintained at a temperature of at least 80 to 190 degrees while maintaining the molded state. Heating in less than 30 minutes in seconds. The paper container according to the first or second aspect of the invention, wherein the resin film (2) is formed of a polyethylene film. The paper container according to the first or second aspect of the invention, wherein the resin film (2) is formed of a polypropylene film. The paper container according to the first or second aspect of the invention, wherein the resin film (2) is formed of a polyester film. The paper container according to the first or second aspect of the invention, wherein the polyester film (2) is formed of a polyethylene terephthalate film. The paper container according to claim 1 or 2, wherein the resin film (2) has a thickness of about 3 μ to 30 μ, and the paper (1) has a thickness of about 20 g/m 2 to 200 g/m 2 . thickness of. The paper container according to the first or second aspect of the invention, wherein the paper container is a baking container. The paper container according to the first or second aspect of the invention, wherein the paper container is a cooking container. The paper container according to the first or second aspect of the invention, wherein the paper container is a cylindrical container having an elliptical shape. The paper container according to the first or second aspect of the invention, wherein the paper container is a triangular, quadrangular or polygonal container having a corner. The paper container according to the first or second aspect of the invention, wherein the paper container is a paper container having a curl. The paper container according to the first or second aspect of the invention, wherein the crucible is coated or laminated on at least a part of the surface of the film of the laminated resin film (2) and the paper (1). The paper container according to claim 13, wherein the heating time after molding of the male type (4) and the mother type (3) is heated for a period of from 5 minutes to 30 minutes. The paper container according to the first or second aspect of the invention, wherein the heating is performed at a temperature of more than 190 degrees in place of a temperature of about 80 to 190 degrees. The paper container according to the first or second aspect of the invention, wherein the temperature is maintained at a temperature of about 80 to 190 degrees in place of heating in a heat retaining state. For example, the paper capacity described in item 1 or 2 of the patent application scope The device in which the heating is maintained at a temperature exceeding 190 degrees in a heat-insulated state. The paper container according to the first or second aspect of the invention, wherein the heating or holding state is more than 30 minutes. A method of producing a paper container, comprising: a process of laminating an extended resin film (2) and a paper (1); and a film laminated using a male type (4) and a mother type (3) It is a process of forming a paper container, and has a process of heating at a temperature of 80 to 190 degrees for 80 seconds or more after forming, below the melting point of the laminated film. The method for producing a paper container according to claim 19, wherein the heating is performed at a temperature of 80 to 190 degrees after molding for 80 seconds or more, and is carried out at a temperature of 80 to 190 degrees after the molding. A project that maintains temperature for more than 80 seconds. The method for producing a paper container according to claim 19, wherein the heating at a temperature of 80 to 190 degrees is a process of heating at a temperature exceeding 190 degrees. The method for producing a paper container according to claim 20, wherein the temperature is maintained at a temperature of 80 to 190 degrees for 80 seconds or more to maintain the temperature, and the temperature is maintained at a temperature exceeding 190 degrees. Engineering.