JPH11189279A - Body member material for heat-insulating paper container, heat-insulating paper container and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a body member material of a heat-insulating paper container on which a bar code or the like can be printed well and further which is excellent in heat insulation, a heat-insulating paper container and a manufacturing method thereof in a container body member comprising a thermoplastic synthetic resin film with a low melting point laminated on an outer wall face to be foamed. SOLUTION: A thermoplastic synthetic resin film 12 with a low melting point which foams by heat treatment is laminated on an outer wall face of material paper 11 of a material for a container body member 1 of a heat-insulating paper container, and synchronous ink 14 which synchronizes with foaming is applied on the thermoplastic synthetic resin film 12 with a low melting point. Since the synchronous ink synchronously expands without preventing the thermoplastic synthetic resin film from foaming, as the synchronous ink has been applied on a surface of the film, a smooth printed face without uneven feeling can be obtained on the surface of the thermoplastic synthetic resin after forming. Therefore, a POS bar code or the like can be clearly printed on the synchronous ink.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating paper container and a heat-insulating paper container in a heat-insulating paper container which is formed by laminating a low-melting thermoplastic synthetic resin film on the outer wall surface of the container body and foaming it. And its manufacturing method.

[0002]

2. Description of the Related Art The prior art is disclosed in Japanese Patent Publication No. 48-32.
No. 283, a low-melting thermoplastic synthetic resin film is laminated on at least one surface of moisture-containing paper which can be a raw material of a container body member, and heated to obtain a vapor of moisture contained in paper as a base material. A technique for foaming a film into irregularities using pressure is described. At this time, there is a description that a layer for maintaining a vapor pressure during heating is formed on the other surface of the paper.

Japanese Patent Application Laid-Open No. 57-110439 discloses that in a paper container comprising a container body member and a bottom plate member, a low melting point thermoplastic synthetic resin film is laminated on the outer wall surface of the container body member and heated. A technique is described in which a film is foamed into irregularities using the vapor pressure of water contained in paper as a base material. At this time, on the other side of the paper, as a layer that retains the vapor pressure during heating, a thermoplastic synthetic resin film to be a similar foam layer is laminated,
Alternatively, it is described that aluminum foil is coated.

Japanese Patent Application Laid-Open No. 5-42929 discloses that in a paper container comprising a container body member and a bottom plate member, a low melting point thermoplastic synthetic resin film and a high melting point thermoplastic There is a description of a heat-insulating paper container having a two-layer structure in which a synthetic resin film is double-laminated and only the inner low-melting thermoplastic synthetic resin film is foamed by heating, and the outer layer film is smooth and glossy. . At this time, there is a description of laminating a high melting point thermoplastic synthetic resin film on the other surface of the paper as a layer for maintaining a vapor pressure during heating.

[0005] Japanese Patent Application Laid-Open No. 7-232774 discloses that in a paper container comprising a container body member and a bottom plate member, a desired portion of the outer wall surface of the base paper of the container body member is printed with an organic solvent-containing ink, and an upper layer is formed. By laminating and heating a low-melting thermoplastic synthetic resin film, including the above, the part printed with the organic solvent-containing ink can be foamed thicker and thicker than the unprinted part, depending on the location, foam insulation There are descriptions of heat-insulating paper containers with different layer thicknesses. At this time, it is described that a non-foamed portion can be formed by simultaneously coating the volatilization prevention coating layer when forming the printing layer, and that a high melting point thermoplastic synthetic resin film is laminated on the other surface of the paper. is there.

Japanese Patent Application Laid-Open No. 9-95368 discloses that in a paper container comprising a container body member and a bottom plate member, a low melting point thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the container body member, The present invention relates to a heat-insulating paper container having a foam-suppressing portion formed on an outer surface of a container body corresponding to a portion where a synthetic resin component-containing paint is applied by applying a synthetic resin component-containing paint to a desired location and heating the same. There is a description.

Japanese Patent Application Laid-Open No. Hei 9-142435 discloses that, in a paper container comprising a container body member and a bottom plate member, printing is performed on a desired portion of the outer wall surface of the base paper of the container body member, and a transparent layer is formed on the printed layer. By providing a varnish layer, laminating a low melting point thermoplastic synthetic resin film on the upper layer and heating it, foaming is performed evenly, the entire surface is uniform, and the heat insulating paper container has a sufficient heat insulating effect There is a description about.

[0008]

In the above-mentioned conventional heat-insulating paper container, it is necessary to print various indications on the body member of the container. In particular, it is important to print the POS barcode so that it can be read reliably. It is. In a heat-insulating paper container having a foam layer, if the foam layer is present on the POS barcode, it becomes difficult to read it. Further, when the POS barcode is directly printed on the thermoplastic synthetic resin film laminated on the container body member and foamed, the printing of the barcode is deformed or distorted due to the foaming of the film.
The reading operation by S may be adversely affected.

Therefore, as described in Japanese Patent Application Laid-Open No. 7-232774, a non-foamed portion is formed by simultaneously coating a volatilization-preventing coating layer on the outer wall surface of the base paper of the container body when forming a print layer for promoting foaming. To form POS on the non-foamed part
Means for enabling bar code printing;
As described in JP-A-368-368, a container containing a foam-suppressing synthetic resin component-containing paint is applied to the upper surface of a low-melting thermoplastic synthetic resin film laminated on the outer wall surface of the base paper of the container body member and heated. Means for forming a foam-suppressing portion on the outer surface of the body to enable printing of a POS barcode is disclosed. However, the non-foaming portion and the foam-suppressing portion are depressed on the surface of the container body to be smooth. In addition to problems such as the occurrence of parts that make it difficult to hold and the appearance of the container, the non-foamed part and the foam-suppressing part have little heat insulating effect, and cannot be held when hot water is put into the container. There was a problem that the heat insulation as a whole was uneven.

[0010]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method of laminating a low melting point thermoplastic synthetic resin film foamed by heat treatment on an outer wall surface of a base paper as a material for a container body member of a heat insulating paper container. An object of the present invention is to provide a method for producing a container body material of a heat-insulating paper container, which is obtained by applying a synchronizing ink synchronized with foaming to a surface of a low melting point thermoplastic synthetic resin film. The tuning ink expands synchronously without hindering the foaming of the low melting point thermoplastic synthetic resin film, so if the tuning ink is applied to the surface of the low melting point thermoplastic synthetic resin film to be foamed, Thus, a smooth printed surface which does not give a feeling of unevenness to the surface of the thermoplastic synthetic resin can be obtained. Therefore, P
The OS barcode and the like can be printed clearly. Further, since the tuning ink is applied to the surface of the thermoplastic resin film having a low melting point to be foamed, the ink does not penetrate into the base paper, so that the base paper is recycled from the heat insulating paper container of the present invention. Has the effect of making it easier.

[0011] The present invention also relates to the manufacturing method according to claim 1, wherein a tuning ink is applied as a base to the surface of the low melting point thermoplastic synthetic resin film foamed by the heat treatment. An object of the present invention is to provide a method for producing a container body material of a heat-insulating paper container. The tuned ink provides a smooth printed surface that does not give a feeling of irregularities to the surface of the thermoplastic synthetic resin after foaming. It is possible to perform so-called pseudo printing, such as printing the resin surface as if it were paper dough. In addition, the synchronizing ink covers the surface of the low-melting point thermoplastic synthetic resin film during foaming, thereby confining water vapor inside, thereby promoting foaming without suppressing it, and despite the fact that the synthetic resin film is printed. This has the effect of increasing the thickness of the foam layer.

[0012] The present invention also provides a method for producing a container body material of a heat insulating paper container, wherein a white tuning ink is applied as a base in the production method according to the second aspect. It is. By applying a white tuning ink as a base, the surface of the foamed resin can be made to have the appearance of a white Japanese paper, and the appearance as a paper container can be obtained.

According to the present invention, in the manufacturing method of the first, second or third aspect, a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. An object of the present invention is to provide a method for producing a container body raw material of a paper container. By applying a pattern, design, character, bar code, or the like with the tuning ink on the top surface of the tuning ink, which can provide a smooth printed surface without giving a feeling of unevenness to the surface of the thermoplastic synthetic resin after foaming, Barcodes and the like can be printed clearly.

Further, the present invention relates to claims 1, 2, 3 or 4.
The method according to the above, wherein at least a part of a foamed ink layer in which the ink itself is foamed between the base paper and the low-melting thermoplastic synthetic resin film is provided as a foam material layer of the heat-insulating paper container. It is intended to provide a manufacturing method. By providing a foamed ink layer in which the ink itself foams between the base paper and the low melting point thermoplastic synthetic resin film to be foamed, not only the foamed ink foamed,
The foaming layer of the foamed thermoplastic synthetic resin in the portion where the foamed ink layer is provided becomes larger and the thickness of the foaming layer becomes larger, thereby increasing the width of the container body wall and increasing the foaming effect and the heat retaining effect. Will be done. Therefore, it is more effective if the foamed ink layer is provided on the entire surface between the base paper and the low melting point thermoplastic synthetic resin film.

According to the present invention, there is provided a manufacturing method according to claim 1, 2, 3, 4, or 5, wherein a high melting point thermoplastic synthetic resin film which is not foamed by heat treatment is coated on the inner wall surface of the base paper as a raw material of the container body. It is intended to provide a method for producing a container body material of a heat-insulating paper container characterized by laminating. By laminating a high melting point thermoplastic synthetic resin film that does not foam due to heat treatment on the inner wall surface of the base paper of the container body material, evaporation of water vapor from the inner wall surface of the base paper is prevented, and low melting point heat on the outer wall surface The foaming of the plastic synthetic resin film can be promoted, and the sealing property of the container can be ensured by the heat treatment. The present invention provides a method according to claim 1, 2, 3, 4, 5, or 6,
The low melting point thermoplastic synthetic resin film foamed by the heat treatment has an MFR (melt flow rate) of 8 to 15.
The present invention provides a method for producing a container body material of a heat-insulating paper container, which is made of low-density polyethylene having a thickness of 0.03 to 0.07 mm for g / 10 minutes.
The low melting point thermoplastic synthetic resin film has an MFR (melt flow rate) of 8 to 15 g / 10 minutes and a thickness of 0.0
By being made of low-density polyethylene having a thickness of 3 to 0.07 mm, lamination to base paper can be easily performed, and foaming of the low-density polyethylene and elongation of the tuning ink are synchronized, so that the tuning ink smoothes the foamed surface. Can be coated.

The present invention relates to claims 1, 2, 3, 4, 5, and 6.
Or the manufacturing method according to 7, wherein the high melting point thermoplastic synthetic resin film which does not foam by heat treatment is used for the MFR.
It is intended to provide a method for producing a container body material of a heat insulating paper container, which is made of a medium density polyethylene having a (melt flow rate) of 4 to 8 g / 10 minutes. High melting point thermoplastic synthetic resin film
By using a medium-density polyethylene having a (melt flow rate) of 4 to 8 g / 10 minutes, lamination to base paper can be easily performed, and the sealing property of the container can be ensured by heat treatment. According to the present invention, in the production method according to any one of claims 1, 2, 3, 4, 5, 6, 7 and 8, the base paper is made of a single-filament web or a multi-layer net. An object of the present invention is to provide a method for producing a container body raw material of a paper container. Since the base paper is made of a single-layer long net or a round net multi-layer with good air permeability, appropriate thickness and strength, ease of lamination, ease of assembling the container, rich water content and evaporability are obtained, and foaming is achieved. The effect will be increased.

According to the present invention, a high-melting thermoplastic synthetic resin film is laminated on the inner wall surface of the base paper of the raw material of the container body member of the heat insulating paper container, and the outer wall surface of the base paper of the container body member is heated. A container body of a heat-insulating paper container in which a low-melting thermoplastic synthetic resin film that is foamed by processing is laminated, and a tuned ink that synchronizes with the foaming is applied to the surface of the low-melting thermoplastic synthetic resin film. This is to provide a raw material for the member. The present invention is characterized in that, in the container body material of the heat-insulating paper container according to claim 10, a tuning ink is applied as a base to a surface of a low-melting-point thermoplastic synthetic resin film that is foamed by heat treatment. An object of the present invention is to provide a container body material for a heat insulating paper container.

According to the present invention, there is provided a container body material for a heat-insulating paper container, wherein a white tuning ink is applied as a base material. To provide. The present invention is characterized in that in the container body member raw material of the heat insulating paper container according to claim 10, 11 or 12, a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. The present invention provides a container body material for a heat-insulating paper container. The present invention relates to claims 10 to 13
In the container body material of the heat insulating paper container according to any one of the above, the foamed ink layer in which the ink itself foams between the base paper and the low-melting thermoplastic synthetic resin film is provided at least in part. An object of the present invention is to provide a material for a container body member of a heat-insulating paper container.

According to the present invention, the low melting point thermoplastic synthetic resin film which is foamed by heat treatment is made of MFR (Melt Melt).・ Flow rate) 8 ~
An object of the present invention is to provide a container body material for a heat-insulating paper container, comprising a low-density polyethylene of 15 g / 10 minutes. . The present invention provides a raw material for a container body member of a heat-insulating paper container according to any one of claims 10 to 15, wherein a high-melting thermoplastic synthetic resin film which does not foam by a heat treatment is used. (Rate) of 4 to 8 g / 10 min. Is provided.

The present invention is a heat-insulating paper container comprising a container body member and a bottom plate member, wherein a high melting point thermoplastic synthetic resin film is laminated on the inner wall surface of the base paper of the container body member and the bottom plate member. Along with, a low melting point thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the container body member, and a tune ink synchronized with foaming is applied to the surface of the low melting point thermoplastic synthetic resin film, An object of the present invention is to provide a heat-insulating paper container, which is heat-treated to foam the low-melting-point thermoplastic synthetic resin film.

According to the present invention, there is provided a heat insulating paper container according to claim 17, wherein a tuning ink is applied as a base to the surface of a low melting point thermoplastic synthetic resin film which is foamed by heat treatment. A heat insulating paper container is provided. Further, the present invention provides a heat insulating paper container according to claim 18, wherein a white tuning ink is applied as a base. Further, the present invention is directed to claim 17, 18 or 19.
A pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink.

The present invention also provides a heat-insulating paper container according to any one of claims 17 to 20, wherein the ink itself foams between the base paper and the low-melting thermoplastic synthetic resin film. Provided at least in part on a heat-insulating paper container. Also,
The present invention provides the heat-insulating paper container according to any one of claims 17 to 21, wherein a low-melting thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the bottom plate member, and the low-melting heat is applied. An object of the present invention is to provide a heat-insulating paper container characterized by being heat-treated so as to foam a plastic synthetic resin film. In the case of a container having a large diameter, a low height, and a donburi shape, the bottom may be touched by hands. Therefore, by providing a foamed heat insulating layer on the outer wall surface of the base paper of the bottom plate member, it is possible to prevent a burn or the like. effective.

According to the present invention, in the heat-insulating paper container according to any one of claims 17 to 22, foaming is not caused by a heat treatment laminated on the inner wall surface of the base paper as the material of the container bottom plate of the heat-insulating paper container. A low-melting thermoplastic synthetic resin film is laminated on the upper layer of the high-melting thermoplastic synthetic resin film, and is heat-treated to foam the low-melting thermoplastic synthetic resin film of the container body. The present invention provides a heat-insulating paper container. By laminating a low melting point thermoplastic synthetic resin film on the upper layer of the high melting point thermoplastic synthetic resin film laminated on the inner wall surface of the base paper of the container bottom plate material, not only the heat insulating property of the container bottom can be enhanced, but also the container The high melting point thermoplastic synthetic resin film laminated inside the base paper of the body raw material and the low melting point thermoplastic synthetic resin film on the inner wall of the bottom plate member are firmly adhered, and a reliable sealing property is obtained on the inner wall surface of the container. . According to the present invention, in the heat insulating paper container according to any one of claims 17 to 23, the low melting point thermoplastic synthetic resin film foamed by the heat treatment has an MFR (melt flow rate) of 8 or more. ~ 15g /
A heat-insulating paper container characterized by being made of low-density polyethylene having a thickness of 0.03 to 0.07 mm for 10 minutes. The present invention provides the heat-insulating paper container according to any one of claims 17 to 24, wherein the high-melting thermoplastic synthetic resin film that does not foam by heat treatment has an MFR (melt flow rate) of 4 to 4. 8g / 1
An object of the present invention is to provide a heat-insulating paper container made of medium-density polyethylene for 0 minutes.

According to the present invention, in the heat-insulating paper container according to any one of claims 17 to 25, the basis weight of the base paper is 1
An object of the present invention is to provide a heat-insulating paper container having a water content of 50 to 350 g / m ² and a water content of 5 to 9%.
Considering the strength and workability of the base paper, the foaming properties of the laminated thermoplastic resin, the heat insulation after firing, etc., the basis weight of the base paper is 1
Suitably, it comprises 50 to 350 g / m ² and a water content of 5 to 9%. The present invention provides a heat-insulating paper container according to any one of claims 17 to 26, wherein the base paper is made of a single-filament net or a multi-layer net. Is what you do.

The present invention relates to a method for producing a heat insulating paper container comprising a container body member and a bottom plate member, wherein a high melting point thermoplastic synthetic resin film is laminated on the inner wall surface of the base paper of the container body member and the bottom plate member. At the same time, a low-melting thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the container body member, and a tuned ink that synchronizes with foaming is applied to the surface of the low-melting thermoplastic synthetic resin film. A method for manufacturing a heat-insulating paper container, comprising: forming a container from a member and a bottom plate member; and heat-treating the low-melting point thermoplastic synthetic resin film so as to foam the container.

According to the present invention, there is provided a method for producing a heat-insulating paper according to claim 28, wherein a synchronizing ink is applied as a base to the surface of the low-melting point thermoplastic synthetic resin film to be foamed by heat treatment. A method for manufacturing a container is provided. The present invention provides a method for manufacturing a heat insulating paper container according to claim 29, wherein a white tuning ink is applied as a base. According to the present invention, there is provided a method of manufacturing a heat insulating paper container according to claim 28, 29 or 30, wherein a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. It provides a method. According to the present invention, in the heat insulating paper container according to any one of claims 28 to 31, at least a part of the foamed ink layer in which the ink itself foams between the base paper and the low-melting thermoplastic synthetic resin film. It is intended to provide a method for producing a heat-insulating paper container characterized by providing the same.

According to the present invention, in the manufacturing method according to any one of claims 28 to 32, a low-melting thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the base plate member, and the low-melting thermoplastic resin film is laminated. An object of the present invention is to provide a method for producing a heat-insulating paper container, wherein a heat treatment is performed so as to foam a plastic synthetic resin film. The present invention provides the heat-insulating paper container according to any one of claims 28 to 33, wherein the heat-insulating paper container has a high melting point that does not foam due to heat treatment laminated on the inner wall surface of the base paper as the material of the container bottom plate member. A heat-insulating paper made by laminating a low-melting thermoplastic synthetic resin film on the upper layer of the thermoplastic synthetic resin film and heat-treating the low-melting thermoplastic synthetic resin film of the container body member to foam it. A method for manufacturing a container is provided.

According to the present invention, there is provided a container body material for a heat-insulating paper container according to any one of claims 28 to 34, wherein the low-melting thermoplastic synthetic resin film foamed by heat treatment has a MFR (melt-melt) property.・ Flow rate) 8 ~
An object of the present invention is to provide a method for manufacturing a heat-insulating paper container, comprising low-density polyethylene having a thickness of 15 g / 10 min and a thickness of 0.03 to 0.07 mm. The present invention provides a raw material for a container body member of a heat-insulating paper container according to any one of claims 28 to 35, wherein the high-melting-point thermoplastic synthetic resin film that does not foam by heat treatment has an MFR (melt flow rate). A method for producing a heat-insulating paper container, comprising a medium-density polyethylene having a rate of 4 to 8 g / 10 minutes. According to the present invention, in the method for producing a heat insulating paper container according to any one of claims 28 to 36, the heat treatment is performed at a temperature of 120 to 130 ° C and for a time of 2 to 4 minutes. And a method for producing a heat insulating paper container. Heat treatment temperature is 120-130 °
In C, when the time is 2 to 4 minutes, the low melting point thermoplastic synthetic resin film laminated on the outer wall surface of the base paper can be sufficiently foamed.

[0029]

(Embodiment 1) In the manufacturing method according to any one of claims 1 to 9, a pattern, a design, a character, or a bar code is formed on a top surface of the tuning ink by a foaming ink in which the ink itself foams. A method for producing a container body material for a heat-insulating paper container, comprising applying a coating material. The pattern, design, characters, barcode, etc. should be provided in a raised form with the foaming ink, which foams the ink itself, on the smooth synchronization ink on the surface of the foamed thermoplastic synthetic resin that has foamed smoothly on the outer surface of the container body member. Can be. (Embodiment 2) The method according to any one of claims 1 to 9, wherein a pattern, a design, a character, a barcode, or the like is applied to the upper surface of the tuning ink with a suppression ink that suppresses foaming. For producing a container body material of a heat-insulating paper container. A pattern, a design, a character, a bar code, or the like can be provided in a slightly recessed form by a suppression ink for suppressing foaming on the synchronization ink having a smooth surface of the foamed thermoplastic synthetic resin.

(Embodiment 3) In the production method according to any one of claims 1 to 9 or Embodiment 1 or 2, overprinting is performed on the surface of the raw material of the container body member of the manufactured heat-insulating paper container. A method for producing a container body material of a heat-insulating paper container, characterized by applying a coating. By applying the coating by overprinting, the surface gloss of the container body member can be changed by glazing or matting.

(Embodiment 4) In the production method according to any one of claims 1 to 9 or Embodiment 1, 2 or 3, the basis weight of the base paper is 150 to 350 g / m ² and the water content is A method for producing a container body material for a heat-insulating paper container, comprising 5 to 9%. Embodiment 5 The container body member of a heat-insulating paper container according to the manufacturing method described in Embodiment 4, wherein the basis weight of the base paper is 280 to 320 g / m ² and the water content is 5 to 9%. Raw material production method. Under these conditions, the strength, workability, foamability of the laminated thermoplastic resin, heat insulation after firing, and the like can be made more favorable.

(Embodiment 6) In the production method according to any one of claims 1 to 9 or Embodiments 1, 2, 3, 4 or 5, the thermoplastic resin having a low melting point has a density of 0.
91 to 0.92 g / cm ³ , melting point 105 to 110 ° C,
MFL (melt flow rate) 8-15g / 10
A method for producing a container body member raw material for a heat-insulating paper container, comprising polyethylene having a thickness of 0.030 to 0.070 mm. (Embodiment 7) In the manufacturing method according to any one of Claims 1 to 9 or Embodiment 1, 2, 3, 4, 5, or 6, the high melting point thermoplastic resin has a density of 0.93 to 0.93.
0.95 g / cm ³ , melting point 130-135 ° C, MFL
(Melt flow rate) 4 to 8 g / 10 minutes, 0.015 to 0.030 mm in thickness made of polyethylene, a method for producing a container body material of a heat insulating paper container.

(Embodiment 8) In the raw material of the container body member of the heat insulating paper container according to any one of claims 10 to 16, the pattern, design, and the like are formed by foaming ink in which the ink itself foams on the upper surface of the tuning ink. A container body material for a heat-insulating paper container, wherein a character or a bar code is applied. (Embodiment 9) The container body member raw material of the heat insulating paper container according to any one of claims 10 to 16,
A material for a container body member of a heat-insulating paper container, wherein a pattern, a design, a character, a bar code, or the like is applied to a top surface of the tuning ink with a suppression ink for suppressing foaming.

(Embodiment 10) Claims 10 to 16
10. A container body material for a heat-insulating paper container, wherein the surface of the container body material for the heat-insulating paper container according to any one of the embodiments 8 or 9 is coated by overprinting.

(Embodiment 11) Claims 10 to 16
Or the container body material of the heat insulating paper container according to any one of Embodiments 8, 9, 10 and 11, wherein the basis weight of the base paper is 150 to 350 g / m ² and the water content is 5 to 9
% Of the material of the container body of the heat insulating paper container. (Embodiment 12) In the container body material of a heat-insulating paper container according to any one of claims 10 to 16, or embodiments 8, 9, 10 or 11, the thermoplastic resin having a high melting point has a density of 0. 0.93 to 0.95 g / cm ³ , melting point 13
0-135 ° C, MFL (melt flow rate) 4
A container body material for a heat-insulating paper container, comprising polyethylene having a thickness of 0.015 to 0.030 mm and a thickness of 0.015 to 0.030 mm.

(Embodiment 13) Claims 10 to 16
Or in the container body material of the heat insulating paper container according to any one of Embodiments 8, 9, 10, 11, and 12, the thermoplastic resin having a low melting point has a density of 0.91 to 0.92 g.
/ Cm ³ , melting point 105-110 ° C, MFL (melt
Flow rate) 8-15 g / 10 min, thickness 0.030
A container body material for a heat-insulating paper container, comprising polyethylene having a thickness of 0.070 mm. (Embodiment 14) In the heat-insulating paper container according to any one of claims 17 to 27, a pattern, a design, a character, a barcode, or the like is applied to the upper surface of the tuning ink by a foaming ink in which the ink itself foams. A heat insulating paper container characterized by the above-mentioned.

(Embodiment 15) Claims 17 to 27
In the heat-insulating paper container according to any one of the above, the pattern by the suppression ink for suppressing foaming on the upper surface of the tuning ink,
A heat-insulating paper container coated with a design, characters, barcode, or the like. (Embodiment 16) The heat-insulating paper container according to any one of claims 17 to 27 or embodiment 14 or 15, wherein a container body member on the side of the low-melting thermoplastic synthetic resin film coated with a tuning ink. A heat-insulating paper container, characterized in that the surface of the paper is coated by overprinting.

(Embodiment 17) Claims 17 to 27
In the heat insulating paper container according to any one of the above or any one of the embodiments 14 to 16, the basis weight of the base paper is 28.
A heat-insulating paper container comprising 0 to 320 g / m ² and a water content of 5 to 9%. (Embodiment 18) The heat insulating paper container according to any one of claims 17 to 27 or any one of embodiments 14 to 17, wherein the high melting point thermoplastic resin has a density of 0.93 to 0.1. 95 g / cm ³ , melting point 130-135 °
C. A heat-insulating paper container made of polyethylene having a thickness of 0.015 to 0.030 mm. (Embodiment 19) The heat-insulating paper container according to any one of claims 17 to 27 or any one of embodiments 14 to 18, wherein the low-melting-point thermoplastic resin has a density of 0.91 to 0. 92 g / cm ³ , melting point 105-110 °
C. A heat-insulating paper container made of polyethylene having a thickness of 0.030 to 0.070 mm.

(Embodiment 20) Claims 28 to 37
In the manufacturing method according to any one of the above, the pattern on the upper surface of the tuning ink by a foaming ink in which the ink itself foams,
A method for manufacturing a heat-insulating paper container, comprising applying a design, characters, a bar code, or the like. (Embodiment 21) The manufacturing method according to any one of claims 28 to 37, wherein a pattern, a design, a character, a barcode, or the like is applied to the upper surface of the tuning ink with a suppression ink that suppresses foaming. Of producing a heat-insulating paper container.

(Embodiment 22) Claims 28 to 37
22. The method according to any one of claims 20 to 21, wherein a coating is applied by overprinting to the surface of the container body member on the side of the low-melting-point thermoplastic synthetic resin film to which the tuning ink has been applied. A method for producing a heat-insulating paper container. (Embodiment 23) In the production method according to any one of claims 28 to 37 or any one of embodiments 20 to 22, the water content of the base paper of the container body member is 5% or more.
A method for producing a heat-insulating paper container, wherein the content is 9%. (Embodiment 24) In the manufacturing method according to any one of claims 28 to 37 or any one of embodiments 20 to 23, the basis weight of the base paper is 150 to 350 g / m ^2.
A method for producing a heat-insulating paper container, comprising:

(Embodiment 25) Claims 28 to 37
Or the manufacturing method according to any one of Embodiments 20 to 23, wherein the high melting point thermoplastic resin has a density of 0.93 to 0.95 g / cm ³ and a melting point of 130 to 13.
A method for manufacturing a heat-insulating paper container, comprising polyethylene having a temperature of 5 ° C and a thickness of 0.015 to 0.030 mm. (Embodiment 26) The manufacturing method according to any one of Claims 28 to 37 or any one of Embodiments 20 to 25, wherein the low melting point thermoplastic resin has a density of 0.91.
~0.92g / cm ^3, melting point devices 105 through 110 ° C, the production method of heat-insulating paper containers, characterized in that it consists of polyethylene having a thickness of 0.030～0.070Mm.

[0042]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. FIG. 1 is a schematic cross-sectional view showing one embodiment of the heat-insulating paper container according to the present invention, and FIG. 2 is a schematic enlarged cross-sectional view around the printing portion of the embodiment of FIG. The heat-insulating paper container according to the present invention includes a container body member 1 and a bottom plate member 2. The step of manufacturing the heat-insulating paper container begins with the manufacture of the raw materials for the container body member 1. As shown in FIG. 2, the raw material of the container body member is the base paper 1
1. A low-melting thermoplastic synthetic resin film 12 foamed by a heat treatment is laminated on the outer wall surface of the first synthetic resin film 1, and a tune ink 14 synchronized with the foaming is applied to the surface of the low-melting thermoplastic synthetic resin film 12. Become. In the case of the embodiment, the basis weight of the base paper 11 is 150 to 350 g /
Various paper materials having m ² and a water content of 5% to 9% can be used, but in consideration of heat insulation and cost, the basis weight is 280 to 320 g / m ² and the water content is 7.5%. ~ 8.
The content is preferably 5%, and as the paper material, single-mesh netting or multi-layer netting is preferred.

The low melting point thermoplastic synthetic resin film 12 foamed by the heat treatment has a density of 0.91 to 0.9.
2 g / cm ³ , melting point 105-110 ° C., MFR (melt flow rate) 8-15 g / 10 min, thickness 0.0
It is preferable that the low-density polyethylene film has a thickness of 30 to 0.070 mm. MFR (melt flow rate) 8 to 15 g / 10 min, thickness 0.03 to 0.07 m
By setting m, it is synchronized with the elongation of the synchronized ink at the time of foaming. In the case of the embodiment, the tuning ink 14 contains a pigment in the case of color, and a resin composition containing no pigment in the case of being colorless and transparent. The urethane resin and the vinyl chloride / vinyl acetate copolymer resin (vinyl chloride vinyl acetate) (Resin), using an ink with a very small residual solvent whose viscosity is appropriately adjusted with a solvent such as ethyl acetate, methyl ethyl ketone, isopropyl alcohol, etc., and almost prevents foaming of polyethylene as the thermoplastic synthetic resin film 12 to be foamed. It is possible to obtain a smooth printed surface that does not give a feeling of unevenness to the surface of the thermoplastic synthetic resin after foaming. It is possible to perform so-called pseudo-printing such as printing the surface as if it were paper dough.

On the inner wall surface of the base paper 11, the release of water vapor in the base paper 11 is prevented without foaming during the heat treatment for foaming the low-melting thermoplastic synthetic resin film 12. The synthetic resin film 13 is laminated. In this embodiment, the high melting point thermoplastic resin film 13 has a density of 0.93 to 0.95 g / cm ³ , a melting point of 130 to 135 ° C., an MFR (melt flow rate) of 4 to 8 g / 10 minutes, and a thickness of 0.015-0.030
A medium-density polyethylene film consisting of mm mm polyethylene is used. As described above, the synchronizing ink 14 contains a resin component containing a polymer of vinyl chloride and vinyl acetate and a urethane resin, methyl ethyl ketone, acetate ester, and
It is composed of a solvent consisting of PA and a pigment for coloring, and tunes without hindering the foaming of the low-density polyethylene film 12, so that the tuning ink 14 is applied to the surface of the low-density polyethylene film 12 and foamed. It has the characteristic that it does not give a feeling of unevenness. From such a feature, it is preferable to use it when printing over a wide range such as capital letters.

In view of the above characteristics, the tuning ink 14 is the most effective ink for printing a pattern of a paper fabric on the entire surface of the low-density polyethylene film 12, that is, so-called pseudo printing. In particular, when printed with the white tuning ink 14, when foamed, the appearance of Japanese paper appears, and a much more paper-like appearance is obtained than with conventional foaming without printing. It will have the appearance. Therefore, by applying a pattern, a design, a character, a bar code, or the like to the upper surface of the tuning ink 14 with the tuning ink 15, a smooth printing surface that does not give an uneven feeling to the surface of the thermoplastic synthetic resin after foaming can be obtained. By applying a pattern, design, character, bar code, or the like on the upper surface of the tuning ink 14, the POS bar code or the like can be printed clearly with the tuning ink 15.

The means is also to first apply a tuning ink 14 of transparent, white, color or the like as a base or partially on the surface of the low-density polyethylene film 12, and then apply a pattern,
In order to print fine characters and figures such as photographs and bar codes, it is only necessary to apply the synchronizing ink 15 on top of another. When a photograph or the like is printed with the tuning ink 14, a transparent tuning ink 15 may be applied on the tuning ink 14 as a glaze and a protective layer. Next, Synchronization Ink 1
When the heat-insulating paper container coated with 4,15 is foamed, the tunable inks 14,15 synchronize with the low-density polyethylene film 12 around the applied portion, as described above, to give a smooth film without giving any unevenness. Since the same feeling is given, by printing the tuning ink 15 on the tuning ink 14 in this way, even if fine characters and photographs are printed in color and foamed, a change in the printing of fine characters and photos is caused. There is no printing effect.

In FIG. 2, a low melting point thermoplastic synthetic resin film 12 has a density of 0.918 g / cm ³ , a melting point of 105 ° C., an MFR of 14 g / 10 minutes, and a thickness of 0.07.
0 mm low density polyethylene, high melting point thermoplastic synthetic resin film 13 having a density of 0.939 g / cm ³ ,
133 ° C, MFR 7g / 10min, thickness 0.02
Using medium-density polyethylene of 0 mm, basis weight is 280 g / m ² , thickness is 0.31 mm, and water content is 8.5% as base paper.
Then, the tuning ink 14 was solid-coated, the tuning ink 15 was partially applied thereon, and the result of heating the one having a total thickness of 0.4 mm with a far infrared heater at a temperature of 125 ° C. for 2 to 4 minutes. The low melting point thermoplastic synthetic resin film 12 is foamed to 0.370 to 0.670 mm, and the total thickness is 0.7 mm.
A foam container body wall of about 1 mm was obtained, and it was confirmed that foaming was performed about 5 to 9 times. Note that the foaming amount of the film 12 tended to increase with the water content of the base paper and the heating time.

It should be noted that, as shown in FIG.
Is a configuration in which the container bottom plate member 2 is rolled in from the outside toward the inside, and the bottom roll-in portion 17 reaches the bottom plate member 2 in a raised bottom manner as it is, thereby providing heat insulation by providing the foam portion up to the roll-in portion 17. There is an effect that can be exerted even to the container bottom. The embodiment shown in FIG. 3 shows a base paper 11 and a low melting point thermoplastic synthetic resin film 12 for foaming.
Between them, there is shown a configuration in which a foaming ink 16 in which the ink itself foams is provided. The foaming ink 16 is composed of a component obtained by adding a foaming agent to the tuning ink, and when the low-density polyethylene film 12 foams, the foaming ink 16 itself also foams. At the same time, the foamed thermoplastic synthetic resin film 1 not only covers the foamed ink but also the portion provided with the foamed ink.
By increasing the thickness of the foamed layer by increasing the number of foamed bubbles in 2, the width of the container body wall is increased, and the foaming effect and the heat retaining effect are increased. Therefore, if the foaming ink 16 is applied to the entire surface between the base paper 11 and the low melting point thermoplastic synthetic resin film 12, it is more effective.

In FIG. 3, the low melting point thermoplastic synthetic resin film 12 is a low density polyethylene film having a density of 0.918 g / cm ³ , a melting point of 105 ° C. and a thickness of 0.070 mm, and a high melting point thermoplastic synthetic resin film 13.
As density 0.939 g / cm ³ , melting point 133 °
C, a medium-density polyethylene film having a MFR of 7 g / 10 min and a thickness of 0.020 mm was used. The base paper 11 had a basis weight of 280 g / m ² , a thickness of 0.31 mm, and a water content of 8.5%.
Of single-layer long net or multi-layer net of round net
The low-density polyethylene film 12 is coated with a foaming ink 16 by solid coating, the surface of the film 12 is solid-coated with the tuning ink 14, and the tuning ink 15 is partially coated thereon to form a total thickness. As a result of heat-treating a 0.4 mm-thick one at a temperature of 125 ° C. for 2 to 4 minutes using a far-infrared heater, the thermoplastic synthetic resin film 12 having a low melting point becomes 0.47 mm.
Foamed to 0 to 0.770 mm, total thickness 0.8 mm to 1.1
mm foamed body wall was obtained, and it was confirmed that foaming was performed about 7 to 10 times. Note that the foaming amount of the film 12 tended to increase with the water content of the base paper and the heating time.

Next, on the inner wall surface of the base paper 21 of the bottom plate member 2 of the heat insulating paper container, a high melting point thermoplastic synthetic resin film similar to the high melting point thermoplastic synthetic resin film 13 on the inner wall surface of the container body member 1 is provided. The resin film 22 is laminated, and forms a container bottom inner wall surface that is continuous with the container body member 1 without foaming even by heat treatment. In the case of a container having a large diameter and a low height, which is difficult to hold only on the side surface, and in the case where the bottom of the container 21 can be touched from the raised bottom space 23 or the like, the base paper 21 of the bottom plate member 2 is On the outer wall surface, a low-melting thermoplastic synthetic resin film 1 on the inner wall surface of the container body member 1
The same low-melting thermoplastic synthetic resin film as in No. 2 can be laminated and foamed by heat treatment. At this time, a foaming ink layer is provided between the base paper 21 and the low-melting-point thermoplastic synthetic resin film, so that foaming of the low-melting-point thermoplastic synthetic resin film can be increased.
Further, a low melting point thermoplastic synthetic resin film is further laminated on the upper layer of the high melting point thermoplastic synthetic resin film which is not foamed by the heat treatment laminated on the inner wall surface of the base paper 21 of the bottom plate member 2 of the heat insulating paper container. By heat treatment, good adhesion between the high melting point thermoplastic synthetic resin film and the low melting point thermoplastic synthetic resin film laminated on the inside of the base In this case, a reliable sealing property can be obtained. In this case, for example, the thickness of the low melting point thermoplastic synthetic resin film on the outer wall surface of the base paper 21 as the raw material of the bottom plate member 2 is 0.060 mm, and the high melting point and low melting point thermoplastic synthetic resin on the inner wall surface. The thickness of the film is 0.015m
m, it can be set to about 0.030 mm in total.

Next, in the case of the heat insulating paper container of the present invention, as described in the section of the embodiment of the present invention, the surface of the tuning ink 14 applied to the foamed thermoplastic resin film 12 of the container body member 1. In addition, those coated with a suppression ink, a foaming ink, or the like can be used. Synchronous ink 14
In the embodiment in which the foaming ink is applied to the surface of the film, when the low-density polyethylene film 12 foams, the foaming ink itself also foams, and the portion on which the foaming ink is applied has a feature that it is raised, thus emphasizing the design. It is suitable for use when you want to. This foaming ink is applied to the tuning ink 14 serving as a base on the upper surface of the low-density polyethylene film 12 and foamed in the same manner as in the above embodiment. As a result, the surface on which the foamed ink is applied rises more than other foamed portions, and irregularities are formed between the portion printed with the foamed ink and the portion not printed. As a result, a three-dimensional effect can be felt, and the printed matter can be clearly seen.

In the embodiment in which the surface coated with the foaming ink is further coated by overprinting, the overprinting is relatively low foaming, and when it is desired to have a glossiness more than that of ordinary ink, or conversely, ordinary printing is performed. It is preferably used when it is desired to suppress glossiness more than ink. When this foaming ink is coated with overprinting and foamed in the same manner as in the above example, the overprinting is coated, so the coated part can be felt glossy for polishing, and vice versa. The glossiness is suppressed in the part coated for matting, and the printed matter is given strength.

Next, in the case of the embodiment in which the tuning ink 12 was applied and the suppression ink was applied thereon,
Is printed on the entire outer wall of the container body member 1 as a base paper pattern, or over a wide area of the outer wall, such as printing a capital letter, whereas the suppression ink is printed as a bar code. It is suitable for use when printing fine patterns or patterns. When the tunable ink 12 was applied, and the heat-insulating paper container coated with the suppressive ink was foamed in the same manner as in the above example, the portion printed with the tuned ink 12 and the suppressive ink and the tunable ink 12 alone were printed. Since unevenness is formed between the portions, a three-dimensional effect can be felt, and the printed matter can be clearly seen. Therefore, if the suppression ink is a transparent suppression ink, the tuning ink 12 printed on the base will look clear, but it is not necessary to limit to the transparency suppression ink.

The suppression ink is composed of a polymer containing vinyl chloride and vinyl acetate, an acrylic resin, a resin component containing a special inhibitor, a solvent comprising methyl ethyl ketone, acetate and toluene, and a pigment. When applied directly to the low-density polyethylene film 12, the foaming is suppressed, the degree of foaming is reduced in that portion, and only the portion to which the suppression ink is applied is depressed. Due to such characteristics, when the tuning ink 14 is applied to the low-density polyethylene film 12 and the suppression ink is applied thereon, only the portion where the suppression ink is applied is slightly recessed from the portion where the tuning ink is applied. Therefore,
Since the print looks slightly sharper because the printed portion does not expand, it is suitable for printing a fine character or pattern such as a barcode.

[0055]

As described above, according to the raw material of the body member of the heat-insulating paper container and the method of manufacturing the heat-insulating paper container according to the present invention, the outer material of the raw material of the body member of the heat-insulating paper container is reduced. By laminating a low-melting thermoplastic synthetic resin film that foams by heat treatment on the wall surface, and by applying a tuning ink that synchronizes with foaming on the surface of the low-melting thermoplastic synthetic resin film, The tuned ink expands synchronously without hindering the foaming of the low melting point thermoplastic synthetic resin film, so if the tuned ink is applied to the surface of the low melting point thermoplastic synthetic resin film to be foamed, the low melting point In addition to providing the same heat insulating effect as when only the thermoplastic synthetic resin film is foamed, a smooth printed surface that does not give a feeling of unevenness to the surface of the thermoplastic synthetic resin after foaming is obtained. Therefore, POS barcodes and the like can be clearly printed on the tuning ink, and the tuning ink is further applied to the surface of the low melting point thermoplastic synthetic resin film to be foamed. As a result, the ink does not permeate into the base paper, so that the base paper can be easily recycled from the heat insulating paper container of the present invention.

Further, the present invention has a structure in which a tuned ink is applied as a base to the surface of a low melting point thermoplastic synthetic resin film which is foamed by the heat treatment, so that the foamed resin surface has a paper dough appearance. It has the effect of being able to perform so-called pseudo-printing, such as printing, etc., and furthermore, the tuning ink covers the surface of the low melting point thermoplastic synthetic resin film at the time of foaming and seals water vapor inside, thereby preventing foaming. There is an effect of promoting without suppression and increasing the thickness of the synthetic resin film foam layer despite printing.

Further, the present invention is characterized in that a white tuning ink is applied as a base in the above-mentioned configuration, whereby the foamed resin surface can have the appearance of a white Japanese paper. It is possible to obtain an appearance as a container, and to provide a heat-insulating paper container that is solid and solid. Further, the present invention provides the above-described configuration,
The pattern, design,
By having a configuration characterized by applying letters or barcodes, etc., on the top surface of the tuning ink, a smooth printed surface that does not give a feeling of unevenness to the surface of the thermoplastic synthetic resin after foaming is obtained, Since a pattern, a design, a character, a barcode, or the like can be applied with the synchronization ink, there is an effect that a POS barcode or the like can be printed clearly.

Further, the present invention is characterized in that the foamed ink layer in which the ink itself foams is provided at least in part between the base paper and the low melting point thermoplastic synthetic resin film in the above structure. By providing a foamed ink layer in which the ink itself is foamed between the base paper and the low-melting thermoplastic resin film to be foamed, not only the foamed ink foamed but also the portion provided with the foamed ink layer When the foamed foam of the foamed thermoplastic synthetic resin becomes larger, the thickness of the foamed layer becomes larger, the width of the container body wall increases, and there is an effect of increasing the foaming effect and the heat retaining effect. Further, the present invention is characterized in that, in the above structure, a high melting point thermoplastic synthetic resin film which does not foam by heat treatment is laminated on the inner wall surface of the base paper of the container body member raw material, so that the low melting point thermoplastic When the synthetic resin film is foamed, there is an effect of blocking moisture contained in the base paper without foaming. In addition, the present invention has an effect of increasing the foaming effect by having the above-described configuration in which the base paper is made of a single net or a multi-layer net having good air permeability.

Further, the present invention, in the above configuration, has a structure in which a low melting point thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the bottom plate member, and the low melting point thermoplastic synthetic resin film is foamed. By that, in the case of a large diameter, low height, donburi shaped container,
Even if a hand touches the bottom, providing the foam heat insulating layer on the outer wall surface of the base paper of the bottom plate member has the effect of preventing a burn or the like. Further, the present invention, in the above configuration, by laminating a low melting point thermoplastic synthetic resin film on the upper layer of the high melting point thermoplastic synthetic resin film laminated on the inner wall surface of the base paper of the container bottom plate member raw material In addition to enhancing the heat insulation of the container bottom, the high melting point thermoplastic synthetic resin film laminated on the inside of the base paper of the container body raw material and the low melting point thermoplastic synthetic resin film on the inner wall of the bottom plate member are firmly bonded. Thus, there is an effect that a reliable sealing property can be obtained on the inner wall surface of the container.

Further, according to the present invention, in the above structure, the low melting point thermoplastic synthetic resin film foamed by the heat treatment has an MFR (melt flow rate) of 8 to 15 g.
/ 10 minutes, by having a configuration made of low-density polyethylene having a thickness of 0.03 to 0.07 mm, lamination to base paper can be easily performed, and foaming of the low-density polyethylene and elongation of the synchronization ink are synchronized. Therefore, there is an effect that the tuning ink smoothly covers the foamed surface of the low-density polyethylene and can print clearly. Further, in the present invention, in the above configuration, the high melting point thermoplastic synthetic resin film which does not foam by the heat treatment may be used in an MFR (melt melt
By using a medium-density polyethylene having a flow rate of 4 to 8 g / 10 min, lamination to base paper can be easily performed, and the sealing property of the container can be reliably ensured by heat treatment. effective. Further, according to the present invention, in the above-described configuration, the base paper has a basis weight of 150 to 350 g / m ² and a water content of 5 to 9%. There is an effect that a heat-insulating paper container having good workability, foaming properties of the laminated thermoplastic resin, heat insulation after firing, and the like can be obtained. Further, according to the present invention, in the above structure, the heat treatment is performed at a temperature of 120 to 130 ° C. for 2 hours.
By setting the duration to 4 minutes, there is an effect that the low-melting point thermoplastic synthetic resin film laminated on the outer wall surface of the base paper can be sufficiently foamed.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing one embodiment of a heat insulating paper container according to the present invention.

FIG. 2 is a schematic enlarged sectional view of a portion around a printing portion of a synchronized ink of the embodiment shown in FIG. 1;

FIG. 3 is a schematic enlarged cross-sectional view of a portion around a printing portion of a synchronized ink in another embodiment different from FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container body member 11 Base paper 12 Low melting point thermoplastic synthetic resin film 13 High melting point thermoplastic synthetic resin film 14 Synchronizing ink 15 Synchronizing ink 16 Foaming ink 17 Bottom winding part 2 Bottom plate member 21 Base paper 22 Low melting point thermoplastic synthetic resin Film 23 raised bottom space

Claims (37)

[Claims] 1. A low-melting thermoplastic synthetic resin film, which is foamed by heat treatment, is laminated on the outer wall surface of a base paper as a raw material of a container body member of a heat-insulating paper container, and a surface of the low-melting thermoplastic synthetic resin film. A method for producing a container body material of a heat-insulating paper container, which comprises applying a synchronization ink synchronized with foaming. 2. The method according to claim 1, wherein a tuned ink is applied as a base to the surface of the low melting point thermoplastic synthetic resin film foamed by the heat treatment. A method for producing a container body material. 3. The method for producing a container body material of a heat insulating paper container according to claim 2, wherein a white tuning ink is applied as a base. 4. The heat-insulating paper container according to claim 1, wherein a pattern, a design, a character, a bar code or the like is applied to the upper surface of the tuning ink with the tuning ink. A method for producing a container body material. 5. The method according to claim 1, wherein at least a part of a foamed ink layer in which the ink itself foams is provided between the base paper and the thermoplastic resin film having a low melting point. A method for producing a container body material of a heat-insulating paper container. 6. The manufacturing method according to claim 1, 2, 3, 4, or 5, wherein a high melting point thermoplastic synthetic resin film that does not foam by heat treatment is laminated on the inner wall surface of the base paper as a raw material of the container body. A method for producing a container body material of a heat insulating paper container. 7. The production method according to claim 1, wherein the low melting point thermoplastic synthetic resin film foamed by the heat treatment has an MFR (melt flow rate) of 8 or more. ~ 15g / 10min, thickness 0.03 ~ 0.
A method for producing a container body material of a heat-insulating paper container, comprising a low-density polyethylene having a thickness of 07 mm. 8. The method of claim 1, 2, 3, 4, 5, 6, or 7, wherein the high-melting thermoplastic synthetic resin film that does not foam by heat treatment has an MFR (melt / melt).
A method for producing a container body material for a heat-insulating paper container, comprising a medium-density polyethylene having a flow rate of 4 to 8 g / 10 min. 9. The heat-insulating paper according to claim 1, 2, 3, 4, 5, 6, 7, or 8, wherein the base paper is made of single-filament netting or multi-layer netting. A method for producing a container body material of a container. 10. A high-melting thermoplastic synthetic resin film is laminated on the inner wall surface side of the base paper as the raw material of the container body member of the heat insulating paper container, and the outer wall surface of the base paper of the container body member is subjected to heat treatment. A container body material for a heat-insulating paper container made by laminating a foaming low-melting thermoplastic synthetic resin film and applying a synchronizing ink synchronized with foaming on the surface of the low-melting thermoplastic synthetic resin film. . 11. A raw material for a container body member of a heat-insulating paper container according to claim 10, wherein a tuning ink is applied as a base to a surface of a low-melting-point thermoplastic synthetic resin film foamed by heat treatment. Material for container body of heat-insulating paper container. 12. The container body material of a heat-insulating paper container according to claim 11, wherein a white tuning ink is applied as a base material. 13. A material for a container body member of a heat insulating paper container according to claim 10, 11 or 12, wherein a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. Container body material of a heat-insulating paper container. 14. A foamed ink in which the ink itself foams between the base paper and the low-melting thermoplastic synthetic resin film in the raw material of the container body of the heat-insulating paper container according to any one of claims 10 to 13. A container body material for a heat-insulating paper container, wherein a layer is provided at least in part. 15. The low-melting point thermoplastic synthetic resin film foamed by heat treatment according to any one of claims 10 to 14, wherein the low-melting point thermoplastic synthetic resin film is foamed by heat treatment.・ Rate) 8 ~ 15g
A container body material for a heat-insulating paper container, which is made of low-density polyethylene having a thickness of 0.03 to 0.07 mm for / 10 minutes. 16. The high melting point thermoplastic synthetic resin film which does not foam by heat treatment in the container body material of the heat insulating paper container according to claim 10, wherein the MFR (melt flow) is used.・ Rate) 4 ~ 8g
A container body material for a heat-insulating paper container, wherein the material is made of medium-density polyethylene for / 10 minutes. 17. A heat-insulating paper container comprising a container body member and a bottom plate member, wherein a high melting point thermoplastic synthetic resin film is laminated on the inner wall surface of the base paper of the container body member and the bottom plate member. A low-melting-point thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the container body member, and a tuned ink that synchronizes with foaming is applied to the surface of the low-melting-point thermoplastic synthetic resin film. A heat-insulating paper container, which is heat-treated so as to foam a thermoplastic synthetic resin film having a melting point. 18. The heat-insulating paper container according to claim 17, wherein a tuning ink is applied as a base to the surface of the low-melting thermoplastic synthetic resin film foamed by heat treatment. container. 19. The heat-insulating paper container according to claim 18, wherein a white tuning ink is applied as a base. 20. The heat-insulating paper container according to claim 17, 18 or 19, wherein a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. Container. 21. The heat-insulating paper container according to any one of claims 17 to 20, wherein at least a part of the foamed ink layer in which the ink itself foams between the base paper and the low melting point thermoplastic synthetic resin film. A heat-insulating paper container provided in the container. 22. The heat-insulating paper container according to claim 17, wherein a low-melting thermoplastic synthetic resin film is laminated on an outer wall surface of the base paper of the bottom plate member, and the low-melting thermoplastic resin film is laminated. A heat-insulating paper container, which is heat-treated so as to foam a thermoplastic synthetic resin film. 23. The heat-insulating paper container according to any one of claims 17 to 22, wherein the high-melting point does not foam due to a heat treatment laminated on the inner wall surface of the base paper material of the bottom plate member of the heat-insulating paper container. Insulation characterized by laminating a low melting point thermoplastic synthetic resin film on the upper layer of the thermoplastic synthetic resin film of the above, and heat-treating to foam the low melting point thermoplastic synthetic resin film of the container body member. Paper container. 24. The heat-insulating paper container according to claim 17, wherein the low-melting thermoplastic synthetic resin film foamed by the heat treatment has an MFR (melt flow rate). A heat-insulating paper container made of low-density polyethylene having a thickness of 8 to 15 g / 10 min and a thickness of 0.03 to 0.07 mm. 25. The heat-insulating paper container according to any one of claims 17 to 24, wherein the high-melting thermoplastic synthetic resin film that does not foam by heat treatment has an MFR (melt flow rate) of 4 or more. A heat-insulating paper container made of medium-density polyethylene having a viscosity of ８8 g / 10 min. 26. The heat-insulating paper container according to claim 17, wherein the basis weight of the base paper is 150-150.
A heat-insulating paper container comprising 350 g / m ² and a water content of 5 to 9%. 27. The heat-insulating paper container according to claim 17, wherein the base paper is made of single-filament netting or multi-layer netting. 28. A method of manufacturing a heat-insulating paper container comprising a container body member and a bottom plate member, comprising laminating a high melting point thermoplastic synthetic resin film on the inner wall surface of the base paper of the container body member and the bottom plate member. Laminating a low melting point thermoplastic synthetic resin film on the outer wall surface of the base paper of the container body member, applying a tuned ink synchronized with foaming on the surface of the low melting point thermoplastic synthetic resin film, A method for manufacturing a heat-insulating paper container, comprising: forming a container from a bottom plate member; and heat-treating the low-melting point thermoplastic synthetic resin film so as to foam the container. 29. The heat-insulating paper container according to claim 28, wherein the tuning ink is applied as a base to the surface of the low melting point thermoplastic synthetic resin film to be foamed by heat treatment. Production method. 30. The method for producing a heat-insulating paper container according to claim 29, wherein a white tuning ink is applied as a base. 31. The heat-insulating paper container according to claim 28, wherein a pattern, a design, a character, a bar code, or the like is applied to the upper surface of the tuning ink with the tuning ink. Production method. 32. The heat insulating paper container according to claim 28, wherein at least a part of the foamed ink layer in which the ink itself foams between the base paper and the low melting point thermoplastic synthetic resin film. A method for producing a heat-insulating paper container, comprising: 33. The manufacturing method according to claim 28, wherein a low-melting thermoplastic synthetic resin film is laminated on the outer wall surface of the base paper of the base plate member, and the low-melting thermoplastic synthetic resin film is laminated. A method for producing a heat-insulating paper container, wherein a heat treatment is performed so as to foam a resin film. 34. The heat-insulating paper container according to claim 28, wherein the heat-insulating paper container has a high melting point which is not foamed by a heat treatment laminated on the inner wall surface of the base paper as a raw material of the container bottom plate member. Insulating paper characterized in that a low-melting thermoplastic synthetic resin film is laminated on the upper layer of the thermoplastic synthetic resin film of (1), and a heat treatment is performed so as to foam the low-melting thermoplastic synthetic resin film of the container body member. Method of manufacturing container. 35. The raw material for a container body member of a heat-insulating paper container according to claim 28, wherein the low-melting point thermoplastic synthetic resin film foamed by heat treatment has an MFR (melt flow).・ Rate) 8 ~ 15g
A method for producing a heat-insulating paper container comprising low-density polyethylene having a thickness of 0.03 to 0.07 mm for / 10 minutes. 36. The raw material for a container body member of a heat-insulating paper container according to claim 28, wherein the high-melting-point thermoplastic synthetic resin film which does not foam by heat treatment has an MFR (melt flow).・ Rate) 4 ~ 8g
A method for producing a heat-insulating paper container, comprising a medium-density polyethylene for / 10 minutes. 37. The method for producing a heat-insulating paper container according to claim 21, wherein the heat treatment is performed at 120 to 130 ° C. for 2 to 4 minutes. Manufacturing method of paper container.