JPH11301753A - Paper heat-insulated container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the beautiful appearance of a surface by providing a container comprising a container body formed by paper-making a raw solution mainly consisting of a pulp and a heat insulation member, forming the heat insulation member into a shape to cover a body part and a lower part of the container body, and fitting the heat insulation member to an outer surface of the container body. SOLUTION: A container body 1 is formed. In the forming method, a raw paper-making solution in which a thermoplastic resin or the like is mixed in a dispersing solution of the pulp for a raw material or impregnated in the raw material is fed to a paper- making device, and a solid content is formed for a container. As for the size of a heat insulation member 2 to the container body 1, an opening part is of the dimension to be agreed with the outer circumference of the container body, an intermediate part and a bottom part are of the dimension larger than the outer circumference of the container body, and the height is set to be higher than that of the container body. The heat insulation member 2 is inserted in the outer surface of the container body 1, and fitted to a flange part, the opening part and an upper part of the body part. A heat insulation space 3 is formed from an intermediate part of the body part to the bottom part between the container body and the heat insulation member. The beautiful appearance of the container surface is improved thereby.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper heat insulating container in which a heat insulating member is attached to a papermaking container mainly made of pulp material.

[0002]

2. Description of the Related Art In recent years, paper insulation containers have been widely used due to problems such as disposal. These containers have a heat insulating function by attaching a heat insulating member to a normal paper cup. These containers had the same appearance as ordinary paper cups due to restrictions on forming the main paper cup. On the other hand, udon, buckwheat, etc. are generally eaten using so-called bowls and bowls in ordinary pottery, and there has been a strong demand for paper containers to be bowl-shaped or bowl-shaped. . However, in the conventional paper insulation container, due to the problem of moldability of the main paper cup, such as bowls and bowls,
It was impossible to form a container having a body with a curved surface in the vertical direction.

[0003] As a container made of paper having a form different from that of a paper cup, a container formed by forming a raw material liquid containing pulp as a main raw material is known. Since this container is molded by a mold,
The degree of freedom of the shape is high, and it is easy to make it a bowl-shaped bowl or bowl-shaped. However, since the heat insulating function depends only on the material and thickness of the container, when the hot water is poured, the outer surface of the container has a temperature at which it cannot be held by hand and cannot be used as a heat insulating container.

[0004]

Therefore, according to the present invention, a container body is formed by forming a raw material liquid containing pulp as a main raw material to increase the degree of freedom in the shape of a bowl or bowl. Another object of the present invention is to provide a paper heat-insulating container having a high heat-insulating function by providing a heat-insulating member on the outer surface of a container body and also having a high-surface aesthetic property.

[0005]

Means for Solving the Problems A first invention of the present invention is:
It is composed of a container body and a heat insulating member formed by forming a raw material liquid containing pulp as a main raw material, and the heat insulating member has a shape covering a body and a lower portion of the container body, and the heat insulating member is provided on an outer surface of the container body. This is a paper heat insulating container equipped with.

[0006] The first invention is a paper heat insulating container in which an insulating space is interposed between the container body and the heat insulating member.

[0007] The first invention is a paper heat insulating container in which the container body has a mirror surface on the inner surface and a mesh surface on the outer surface, and the heat insulating member has a mesh surface on the inner surface and a mirror surface on the outer surface.

[0008] A second invention of the present invention is to form a container body formed by paper-forming a raw material liquid mainly composed of pulp and a plate-like body mainly composed of paper by pressurizing or heat-press molding. The heat insulating member is a paper heat insulating container having a shape covering the body and lower part of the container main body, and having the heat insulating member mounted on the outer surface of the container main body.

[0009] The second invention is a paper heat insulating container having an insulating space interposed between the container body and the heat insulating member.

[0010] A third invention of the present invention comprises a container main body formed by forming a raw material liquid containing pulp as a main raw material, and a tubular heat insulating member covering an outer surface of a body of the container main body. Is a paper heat insulating container having the heat insulating member mounted on the outer surface of its body.

According to a third aspect of the present invention, there is provided a paper heat insulating container having an insulating space interposed between the container body and the heat insulating member.

[0012]

[Function] With the lid member of the paper heat insulation container in which the cooked food is sealed, pour hot water into the container body with the lid member opened, heat the food inside, and remove the body and bottom of the heat insulation member by hand. Hold it with your hand, or put your thumb on the wrap around the top edge of the container and your other finger on the bottom of the insulation,
Lift the container. At this time, the hand does not directly touch the container main body, and the heat insulating property of the heat insulating member or the heat insulating space between the container main body and the heat insulating member allows the hand to hold the hand without feeling much heat. .

In the first invention of the present invention, since both the container body and the heat insulating member are formed by forming a raw material liquid containing pulp as a main material, the shape of the whole paper heat insulating container can be freely set. it can. A state in which the inner surface of the container body is a mirror surface, the outer surface is a mesh surface, the inner surface of the heat insulating member is a mesh surface, and the outer surface is a mirror surface, so that the mesh surface generated due to the molding characteristics of both members is not exposed. Therefore, the cosmetic appearance can be improved.

In the second aspect of the present invention, since the heat insulating member is formed by pressurizing or heating and pressing a plate made of paper as a main material, the heat insulating member is excellent in workability and the plate before forming is formed. Since it can be formed after printing and displaying at the stage of the shape, it is also excellent in display adequacy.

In the third aspect of the present invention, since the heat insulating member is a cylindrical body, a heat insulating function cannot be added to the bottom of the container. However, the heat insulating member is mainly provided only in the body of the container, which requires the heat insulating function. Therefore, cost can be reduced.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on an embodiment shown in the drawings. The present invention comprises a container body 1 and a heat insulating member 2. The container body 1 is formed into a bowl shape or a bowl shape. The molding method uses a papermaking raw material liquid obtained by mixing a thermosetting resin or the like with a dispersion liquid of cellulose, which is a main raw material of pulp, or impregnating the raw material (polyolefin synthetic pulp can be mixed if necessary). The liquid component of the papermaking raw material liquid is removed from a molding net having a form corresponding to the form of the container to be supplied to and formed in the papermaking apparatus, and the solid component remaining on the molding net is molded as a container. Further, the surface of the solid component on the side opposite to the net of the container can be further formed by heating and pressing under heat and pressure.

FIG. 1 shows a first embodiment corresponding to the first invention of the present invention.
The same material and the same manufacturing method as those of the container body 1 are used. The heat insulating member 2 has a shape and a size substantially coincident with the outer periphery of the container main body at the opening with respect to the container main body 1, and has a shape and a size larger than the outer periphery of the container main body at the middle and the bottom, and the height is set higher than the container main body. .

Then, the heat insulating member 2 is fitted to the outer surface of the container body 1 and fitted or adhered at the flange portion, the opening portion and the upper portion of the body portion of both members. At this time, a heat insulating space 3 is formed from the middle part of the body between the container body and the heat insulating member to the bottom.

From the viewpoint of improving the heat insulating function, it is preferable to reduce the contact area between the container body and the heat insulating member and provide a large heat insulating space 3 as in the above embodiment. However, the provision of the heat insulating space 3 may reduce the rigidity of the entire container. As a solution to this problem, an island-like or annular protrusion may be provided at the bottom of the container body to have a structure in contact with the heat insulating member. Similarly, a vertical rib may be provided on the outer surface of the body of the container body, and the rib may be in contact with the heat insulating member. Further, the body of the heat insulating member may be a surface that is bent in a rib shape.

The indication on the surface of the heat insulating member of the container can be taken by means such as transfer or silk printing after the heat insulating member is formed, or by means of mounting a printed film (such as a shrink film).

Here, the net surface is formed on the surface of the container body and the heat insulating member used in the present embodiment on the surface opposite to the molding net of the container from the molding step. This condition not only impairs aesthetics, but also causes a problem that display means cannot be provided on the surface. Therefore, in this embodiment, the container body is formed so that the inner surface is located on the side of the forming net, and the inner surface of the container body is a mirror surface and the outer surface is a mesh surface. Then, the heat insulating member is formed so that the outer surface thereof is located on the side of the forming net, and the outer surface of the container body is a mirror surface and the inner surface is a net surface. By doing so, the mesh surfaces of both members are hidden by the inner surface of the container, and the mirror surface is exposed on the inner surface of the container body and the outer surface of the heat insulating member, so that the cosmetics of the surface of the container can be improved. .

Next, a second embodiment corresponding to the second invention of the present invention will be described.
2 and 3, the container body 11 is the same as that of the first embodiment. The heat insulating member 12 is a disc-shaped plate made mainly of paper, and a resin is laminated on an inner surface and / or an outer surface as needed. In addition, the plate-like body may be provided with radial pressing rules at the peripheral edge to facilitate molding. Then, this plate-like body is formed into a container shape by heating and pressing. The heat insulating member 2 has a shape and a size substantially coincident with the outer periphery of the container main body at the opening with respect to the container main body 1, and has a shape and size larger than the outer periphery of the container main body at the middle and the bottom, and the height is set higher than the container main body.

The heat insulating member 1 is provided on the outer surface of the container body 11.
2 is fitted, and fitted or bonded at the flange portion, the opening portion, and the upper portion of the body portion of both members. At this time, the heat insulating space 13 is formed from the middle part of the body between the container body and the heat insulating member to the bottom.

From the viewpoint of improving the heat insulating function, it is preferable to reduce the contact area between the container body and the heat insulating member and provide a large heat insulating space 13 as in the above embodiment. However, the provision of the heat insulating space 13 may reduce the rigidity of the entire container. As a solution to this problem, an island-like or annular protrusion may be provided at the bottom of the container body to have a structure in contact with the heat insulating member. Similarly, a vertical rib may be provided on the outer surface of the body of the container body, and the rib may be in contact with the heat insulating member. Further, the body of the heat insulating member may be a surface that is bent in a rib shape.

The indication on the surface of the heat insulating member of the present container can be easily performed by printing on the outer surface of the container before the container is extracted, and then extracting the container into a predetermined shape. It is also possible to take a measure such as mounting a printed film (such as a shrink film).

Next, a third embodiment corresponding to the third invention of the present invention will be described.
FIG. 4 shows an embodiment of the present invention. The container body 21 is the same as that of the first embodiment. The heat insulating member 22 is a fan-shaped plate made mainly of paper, and a resin is laminated on the inner surface and / or the outer surface as necessary. Then, the plate-like body is formed into a cylindrical shape, and is attached to the outer surface of the container body 21. In this step, two means can be selectively adopted. First, the first means is to form a cylindrical body by previously laminating and adhering the side ends of the plate-shaped body,
It fits into the container body, and is fitted or adhered at the opening of both members and the upper part of the trunk. Next, the second means is to attach and attach the plate-shaped body to the outer surface of the container body 21 while bonding the plate-shaped body at the opening of the two members and the upper part of the body, and abutting the side ends of the plate-shaped body. I do.

The heat insulating member 22 has a shape and a size substantially coincident with the outer periphery of the container main body at the opening with respect to the container main body 21, and has a larger shape and size at the middle and the bottom than the outer periphery of the container main body. The height is set equal to or lower than the container body. At this time, a heat insulating space 23 is formed from the middle part of the trunk between the container body and the heat insulating member to the bottom.

From the viewpoint of improving the heat insulating function, it is preferable to reduce the contact area between the container body and the heat insulating member and provide a large heat insulating space 13 as in the above embodiment. However, in this embodiment, since the rigidity of the heat insulating member 22 may be reduced by providing the heat insulating space 13, the heat insulating member 22 may be provided only in a relatively non-curved portion of the body of the container body 21. . In this case, the insulation space is almost gone,
By selecting a material having a high heat insulating property as the material of the heat insulating member, a sufficient heat insulating function can be provided. For example,
A foam sheet, a sheet in which a polyolefin resin (polyethylene, etc.) on the surface is foamed by heating paper, embossed paper in which irregularities are continuous in an island shape, corrugated paper in which irregularities are continuous in a vertical stripe shape, or a single material such as Laminated paperboard can be employed.

The indication on the surface of the heat insulating member of the container can be easily made by printing on the outer surface of the container before the container is extracted, and then extracting the container into a predetermined shape. It is also possible to take a measure such as mounting a printed film (such as a shrink film).

[0030]

The paper heat insulating container of the present invention has a container body formed by forming a raw material liquid containing pulp as a main raw material, thereby increasing the degree of freedom in the shape of a bowl or bowl. By providing a heat-insulating member on the outer surface of the main body, a high heat-insulating function is provided, and the surface is also provided with high cosmetics.

In the first paper heat insulating container of the present invention, since both the container body and the heat insulating member are formed by forming a raw material liquid containing pulp as a main raw material, the shape of the whole paper heat insulating container can be freely set. can do. A state in which the inner surface of the container body is a mirror surface, the outer surface is a mesh surface, the inner surface of the heat insulating member is a mesh surface, and the outer surface is a mirror surface, so that the mesh surface generated due to the molding characteristics of both members is not exposed. Therefore, the cosmetic appearance can be improved.

In the second paper heat insulating container of the present invention, since the heat insulating member is formed by pressurizing or heating and pressing a plate made of paper as a main material, the heat insulating member is excellent in processability, and is formed in a suitable shape. Since it can be formed after printing and displaying at the stage of the previous plate-like body, it is excellent in display adequacy.

In the third paper-made heat insulating container of the present invention, since the heat insulating member is a cylindrical body, a heat insulating function cannot be added to the bottom of the container. Since it is provided only in the case, the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view of a first embodiment of a paper heat insulating container of the present invention.

FIG. 2 is a partial sectional front view of a second embodiment of the paper heat insulating container of the present invention.

FIG. 3 is a plan view of a heat insulating member according to a second embodiment in an unfolded state.

FIG. 4 is a partial cross-sectional front view of a third embodiment of the paper heat insulating container of the present invention.

[Explanation of symbols]

 1, 11, 21 ... The container body 2, 12, 22 ... Heat insulation member 3, 13 ... Heat insulation space

Claims (7)

[Claims] 1. A container body formed by forming a raw material liquid containing pulp as a main raw material, and a heat insulating member, wherein the heat insulating member has a shape covering a body portion and a lower portion of the container body. A paper-made heat-insulating container, wherein the heat-insulating member is mounted on an outer surface. 2. The paper insulation container according to claim 1, wherein an insulation space is interposed between the container body and the insulation member. 3. The paper-made heat insulating container according to claim 3, wherein the container body has a mirror surface on the inner surface and a mesh surface on the outer surface, and the heat insulating member has a mesh surface on the inner surface and a mirror surface on the outer surface. . 4. A container body formed by forming a raw material liquid containing pulp as a main raw material, and a heat insulating member formed by pressurizing or heating and pressing a plate made of paper as a main material, The heat insulating member is shaped to cover the body and lower part of the container body,
A paper heat insulating container, wherein the heat insulating member is mounted on an outer surface of the container body. 5. A paper heat insulating container according to claim 4, wherein a heat insulating space is interposed between said container body and said heat insulating member. 6. A container body formed by forming a raw material liquid containing pulp as a main material, and a tubular heat insulating member covering an outer surface of a body of the container body. A paper heat insulating member having a heat insulating member mounted thereon. 7. A paper heat insulating container according to claim 6, wherein a heat insulating space is interposed between said container body and said heat insulating member.