JPH0524582U - Insulated container - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a heat-insulating container for ready-to-eat food that is easy to dispose of and recycle. [Structure] A paper cup formed by using a composite paper in which a barrier layer such as a resin layer or a metal thin film layer is provided on one or both surfaces of paper as a base material, and an adhesive layer formed by using paper or the like In a container composed of a lid material, a heat insulating sheet material made of non-woven fabric formed so as to be wound in a sheath shape on the surface of the body wall of the paper cup in a folded state inside the paper cup or in a recessed portion at the bottom of the cup. Install.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a container using a non-woven insulation sheet. More specifically, the present invention relates to a heat-insulating container for instant food such as instant noodles, which is prepared by boiling or heating hot water.

[0002]

[Prior Art]

 As is known for cup ramen, most instant noodles are sold with dried noodles and seasonings stored together in a cup that doubles as a packaging container and tableware. The cups used are those that have been subjected to a heat-resistant and heat-insulating treatment in order to put hot water back into the noodles and seasonings. Generally, polystyrene or styrene type plastic containers are used. ..

Since such instant noodles can be eaten as they are by simply adding hot water to the cup, their consumption continues to increase both inside and outside the country. I've been However, when plastic is turned into garbage, it is not easy to incinerate it, and various problems have occurred, such as the furnace heat being damaged by the heat of incineration and the generation of toxic gas during incineration. Today, there is a demand for the development of containers for instant noodles that are easy to dispose of and recycle, and that do not cause pollution, from the perspective of preserving the global environment or saving resources and energy.

Conventionally, as a heat insulating container, one in which a tubular foamed sheet is wrapped around the outer surface of a paper cup has been proposed (see Japanese Patent Publication No. 60-2179). It is also known that a heat-foaming paint is applied to the outer surface of a paper container and the applied surface is heated to foam a heat-foaming substance to give a heat insulating effect to the outer surface of the container (Shokai Sho 60). -193081)). Further, it is also known that a container is wrapped with corrugated paper, which is the inner core material of a corrugated ball.

[0005]

[Problems to be Solved by the Invention] However, in the case where the heat-foaming paint applied to the outer surface of the container is foamed to impart a heat insulating effect to the container, the manufacturing process is complicated and the manufacturing cost is high. There is a problem that colorful and beautiful printing cannot be applied to the outer surface of the container. In addition, the outer surface of the container is not sufficiently heat-insulating, and when hot water is poured into the container, the outside is hot and cannot be held for a while until cooled. On the other hand, when the foamed sheet or corrugated paper is wrapped around the outer surface of the paper cup, the foamed sheet or corrugated paper itself is bulky and cannot be folded small. Therefore, this product must be attached separately at the time of packaging, which is inconvenient for product management because it cannot be stored in a cup container together with noodles for sale.

[0006]

[Means for Solving the Problems]

 Here, the present inventor has completed the present invention by focusing on a non-woven fabric that is easy to dispose of and recycle and can be folded into a small size. Since the non-woven fabric is formed by thickly entwining a sheet of inexpensive cellulose fiber or the like, it is easy to incinerate and reuse like paper, and this non-woven fabric is Since it contains air between the fibers, it has appropriate heat insulation. Therefore, by using this non-woven fabric to form a heat insulating sheet material that can be wound in a sheath shape on the surface of the body wall of the paper cup, the above problems are overcome.

That is, the present invention is a paper cup formed by using a composite paper in which a barrier layer such as a resin layer or a metal thin film layer is provided on one side or both sides of paper as a base material, and a paper cup or the like, In a container composed of a lid material having an adhesive layer, a heat insulating sheet material made of a non-woven fabric made of cellulose fiber as a raw material and formed so that it can be wound in a sheath shape on the surface of the body wall of the paper cup. The present invention proposes a paper container containing a heat insulating sheet made of non-woven fabric, characterized in that the paper container is mounted inside the paper cup or in the recessed portion at the bottom of the cup in a folded state.

[0008]

【Example】

 Next, an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of the container of the present invention. Reference numeral 1 is a paper as a base material, and a barrier layer formed of a resin coat layer or a metal thin film layer such as aluminum is formed on one or both sides of the paper. It is a paper cup formed by using the provided composite paper. In this paper cup, as an example, a Chinese noodle dried by an oil treatment or other method and a fast food 2 containing a seasoning are incorporated. Reference numeral 3 is a non-woven heat insulating sheet material which is housed in the paper cup together with food. This heat insulating sheet material 3 is an arcuate blank in the expanded state, and as shown in FIGS. A tube-shaped envelope is attached, and it is folded and wrapped in a small size, and is embedded in a paper cup as shown in FIG. By the way, the heat insulating sheet material 3 may be made of a nonwoven fabric formed by a dry method, using cellulose fiber including wood fiber and synthetic fiber as a material, but not limited to this. Reference numeral 4 is a lid member formed of aluminum, resin, paper or the like and having an adhesive layer, which is adhered to the top edge portion 5 of the paper cup 1 and hermetically seals it.

In FIG. 6, the heat insulating sheet material 3 made of non-woven fabric formed in the same manner as in the above-mentioned embodiment is appropriately folded so as to be accommodated in the concave portion 7 of the bottom portion 6 of the paper cup in a state of being wrapped. It is a partially cutaway side view showing the second embodiment attached by the above means.

The container of the present invention configured as described above can be sold by printing the outer surface of the paper cup 1 with a beautiful print in an arbitrary form. When hot water is put into the paper cup 1 to return the noodles and seasonings to the hot water, take out the non-woven heat insulating sheet material 3 housed in the paper cup or in the recessed portion 7 of the cup bottom 6 in a small folded state. The paper cup 1 is inserted into the inside of the paper cup as shown in FIGS. 4 and 5, and the paper cup 1 is wrapped around the surface of the barrel wall of the paper cup in a sheath shape. As described above, the heat insulating sheet material 3 made of a non-woven fabric wrapped around the cup in a sheath shape has an appropriate heat insulating property because it contains air between the fibers. Further, there is an advantage that a space appears between the paper cup 1 and the heat-insulating sheet 3 wound around the outside to promote the heat-insulating action.

[0011]

As described above, according to the present invention, a paper cup formed by using a composite paper having paper as a base material and a barrier layer on one or both sides thereof, and an adhesive formed by using paper or the like are used. A container composed of a lid material having a layer, which is made of a non-woven fabric made of cellulose fiber as a raw material and is formed by adhering it so that it can be wound around the surface of the body wall of the paper cup in a pod shape. Since the sheet material is mounted inside the paper cup or in the recessed portion at the bottom of the cup in a folded state, it is possible to perform colorful and beautiful printing on the outer surface of the paper cup. Since it can be folded and stored small and sold together with noodles, product management is easy and the inconvenience of having to attach it separately when packaging is eliminated. Further, the heat insulating sheet material has an appropriate heat insulating property because it contains air between the fibers constituting the sheet, and when it is wound around the cup in a sheath shape, a space is created between them and the heat insulating function is achieved. Since it is promoted, a further heat insulating effect is exhibited. Furthermore, according to the present invention, it is possible to reduce the amount of plastic waste that is often found in instant food containers, which is a problem today, and at the same time, it is easy to dispose of waste and recycle waste, which is extremely excellent in that it can achieve resource saving and energy saving. It was an invention.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the container of the present invention.

FIG. 2 is a plan view of a non-woven fabric heat insulating sheet material attached to an envelope.

FIG. 3 is a sectional view taken along line 2-2 of the above.

FIG. 4 is a perspective view in the middle of inserting a paper cup into a non-woven fabric heat insulating sheet material attached to an envelope.

FIG. 5 is a cross-sectional view showing a state in which a heat insulating sheet material made of non-woven fabric is wound around the surface of the body wall of the paper cup in a sheath shape.

FIG. 6 is a partially cutaway sectional view showing another embodiment of the container of the present invention.

[Explanation of symbols]

 1 Paper Cup 2 Dry Food 3 Non-woven Heat Insulating Sheet Material 4 Lid Material 5 Edge 6 Bottom 7 Recess

Claims (2)

[Scope of utility model registration request] 1. A paper cup formed of a composite paper having a paper as a base material and a barrier layer provided on one or both sides thereof, and a lid material formed of paper or the like and having an adhesive layer. In the container, a heat insulating sheet material made of a non-woven fabric, which is formed so as to be wound around the surface of the body wall of the paper cup in a sheath shape, is housed in the paper cup in a folded state. 2. A paper cup formed of a composite paper having a paper as a base material and a barrier layer provided on one or both sides thereof, and a lid member formed of paper or the like and having an adhesive layer. In a container, a heat insulating sheet material made of a non-woven fabric made of cellulose fiber as a raw material and formed so that it can be wound in a sheath shape on the surface of the body wall of the paper cup is installed in a folded state in a recessed portion at the bottom of the paper cup. A heat-insulating container characterized by that.