JPH11240530A - Heat insulating paper cup container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating paper cup container for use in a microwave oven which can be easily taken up by hands even if the container is hot. SOLUTION: The paper cup container 1 is formed from a paper cup body 10 and a fan-shaped heat insulating sheet 20 adapted to be disposed over the outer periphery of a body part 11 of the body 10. In the sheet 20, two knob pieces 23, 23, each of which is directed upward and surrounded on three sides by a half-cut line (a), are located so that both the pieces are directed to the pivot of the fan-shaped sheet. The sheet 20 is wound around the outer periphery of the body part 11 of the body 10 to bond the sheet 20 to the outer periphery of the body part 11 of the body 10, excluding the knob pieces 23, 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a paper cup container for a microwave oven used for beverages such as coffee, soup, miso soup and soup powder, noodles such as ramen, yakisoba and udon, and frozen foods such as pilaf and gratin. More particularly, the present invention relates to a heat insulating paper cup container for a microwave oven provided with a knob.

[0002]

2. Description of the Related Art Conventionally, as a method of imparting heat insulation to a cup container used for beverages such as coffee and instant foods such as noodles, a separate handle is attached to the cup container with an adhesive, For example, a method of forming a heat-insulating, for example, a foamed plastic sheet or a corrugated corrugated material around, or a method of forming a foam-formed cup container formed of a foamed resin such as a foamed polystyrene resin having a heat-insulating property has been adopted. Was.

[0003]

However, the method of attaching a separate handle to the cup container with an adhesive is troublesome and expensive, and there is a risk that the handle may be removed due to poor attachment and the contents may be spilled. .

[0004] In addition, heat insulation around the cup, for example,
The method of wrapping a foamed plastic sheet or corrugated corrugated material is excellent in heat insulation when containing things such as boiling water, but when heated in a microwave oven, the foamed plastic sheet or corrugated corrugated material Also gets very hot. This is because when the microwave oven is heated, the container becomes hot and the cup container, the surrounding foamed plastic sheet and the corrugated material are also heated. Further, it is considered that the foamed plastic sheet and the corrugated material are in contact with the cup-shaped container, so that the heat is hardly cooled, and the like.

[0005] The method of using a foamed resin as a material makes it difficult to perform clean printing on the surface, has a high burning calorie, has problems in incineration and disposal, and is accompanied by an increase in environmental awareness of consumers. Due to changes in consumption behavior, containers that are easily disposable and easily incinerated in place of foamed resins are required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to a heat insulating cup container for a microwave oven, and the container is a heat insulating paper cup for a microwave oven which can be easily picked up even if it is hot. It is intended to provide a container.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a paper cup body and a fan-shaped heat insulating sheet along the outer periphery of the body of the paper cup body are provided. , The heat insulation sheet, two knob pieces that are surrounded by a half-cut line in three directions upward at a predetermined position,
A heat insulating sheet is wrapped around the outer periphery of the body of the paper cup body so as to be in a direction toward the pivot of the fan. Adhered at parts other than pieces.

[0008] In the invention according to claim 2, the paper cup body and the fan-shaped heat insulating sheet along the outer periphery of the body of the paper cup main body are provided, and the heat insulating sheet is provided with a plurality of band-shaped adhesive portions. The non-adhesive portion other than the adhesive portion is provided at a predetermined position starting from both edges of the band-like adhesive portion, and a grip piece is provided symmetrically so as to straddle the band-like adhesive portion by a semi-cut line, The heat insulating sheet is wound around the outer periphery of the body of the paper cup main body, and the heat insulating sheet and the outer periphery of the body of the paper cup main body are bonded together at portions other than the knob.

Here, the knob piece is particularly provided above the center of the heat insulating sheet.

Here, the heat insulating sheet is formed of a single-sided corrugated cardboard formed by laminating a liner on one side of a corrugated core formed in a corrugated shape. In this way, the single-sided cardboard was cut into a fan shape, and the heat insulating sheet was positioned in the paper cup body with its center side facing the inside.

Further, the heat insulating sheet may be a foamed plastic sheet.

[0012]

According to the present invention, as described above, the heat insulating sheet is
2 that is surrounded by a half-cut line in three directions upward at a predetermined position
One of the knob pieces is provided in a position facing each other so as to be in a direction toward the pivot of the fan, or a plurality of band-shaped bonding portions are provided, and a non-bonded portion other than the bonding portion has a band-shaped bonding portion. Starting from both end edges of the paper cup, the gripping piece is provided symmetrically so as to straddle the band-shaped adhesive portion by a half-cut line, and the heat insulating sheet is wound around the outer periphery of the body of the paper cup body, and the heat insulating sheet is Since the parts other than the knob and the outer periphery of the body of the paper cup body are adhered, if you hold the paper cup container so that the knob is taken out from the half line and pulled out, you do not directly touch the cup body, A paper cup container can be held. Since the half-cut line is provided on the non-adhesive portion of the heat insulating sheet, it does not adhere to the paper cup body, and the knob can be easily pulled out from the trunk. In addition, since the tab is provided above the center of the heat insulating sheet, it is stable.

[0013] The heat insulating sheet is made of a single-sided corrugated cardboard formed by laminating a liner on one side of a corrugated core formed in a corrugated shape. In this way, this single-sided cardboard was cut into a fan shape, and the heat insulating sheet was positioned on the paper cup body with its center side as the inner surface, so the heat insulating effect increased and almost no plastic resin was used. Because it is not used, it is easy to dispose and incinerate.

Even if a foamed plastic sheet is used as the heat insulating sheet, the heat insulating effect is improved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The heat-insulating paper cup container of the present invention comprises:
For example, as shown in FIG. 1 and FIG.
And a fan-shaped heat insulating sheet 20 along the outer periphery of the body 11 of the paper cup body, and knob pieces 23 and 25 are defined on the heat insulating sheet, and the heat insulating sheet is wound around the outer periphery of the body of the paper cup body. The heat insulating sheet and the paper cup body are partially adhered.

As the material of the heat insulating sheet used in the present invention, a single-sided corrugated cardboard or embossed sheet in which a liner is bonded to one side of a core formed in a corrugated shape in the case of paper, an expanded polystyrene sheet in the case of plastic, A material excellent in heat insulation such as a foamed polyethylene sheet can be preferably used.

When single-faced cardboard is used, a cardboard made by cutting single-faced cardboard into a fan shape is used so that the waveform of the core is in the direction toward the corner of the fan at the lateral center of the fan.

[0018]

The present invention will be described in detail with reference to the following examples. <Example 1> A fan-shaped heat insulating sheet 20 used in the heat insulating paper cup container of the present invention has, as shown in FIG. A part 21 is provided.

The non-adhesion portion 22 is a portion other than the adhesion portion of the heat insulating sheet, and a knob piece 23 surrounded by a half-cut line a in three directions upwards in the non-adhesion portion in the direction toward the pivot of the fan. It is provided so that it becomes. When the heat insulating sheet is wound around the outer periphery of the trunk portion, two knob pieces 23 are provided at opposing positions of the cup.

The leading and trailing ends of the half-cut line a are
Are tied together. The shape and size of the knob piece can be easily picked by hand or the like and are not particularly limited as long as the design is good, and may be any size and shape such as a tongue shape and a semicircle shape. However, it is preferable to divide the knob piece into a position above the center when the container is formed, because the container becomes stable when the container is lifted. Further, the half-cut line does not have to be provided over the entire thickness of the heat insulating sheet, but may be a part thereof depending on the material of the heat insulating sheet. For example, when single-sided cardboard is used, it may be provided only on the liner portion on the surface.

The joining of the heat insulating sheet to the paper cup container is performed as follows. That is, first, a known adhesive, for example, a vinyl acetate-based emulsion adhesive is applied to the adhesive portion 21 of the heat insulating sheet. Then, the heat insulating sheet is wrapped around the outer periphery of the body 11 of the paper cup main body 10, and the heat insulating sheet bonding portion 21 is bonded to the outer periphery of the body of the paper cup main body,
The heat insulating paper cup container 1 of the present invention is completed.

In use, for example, a knob piece 23 provided on the body of the heat-insulating paper cup container containing hot noodles is cut at the joint of the half-cut line a to form a bending line b
Pull out to the outside of the container while bending. By holding the pulled-out knob piece 23, the hand or the like does not become hot.

In order to evaluate the produced heat-insulating paper cup container, the instant noodles were put in the container, poured into boiling water and allowed to stand for 3 minutes, and then the knob pieces were hand-held. However, it was not hot and could not be held.

<Embodiment 2> In another embodiment of the heat-insulating paper cup container of the present invention, as shown in FIG. 2 (b), the positions of the tabs of the heat-insulating sheet are changed. Except for this point, the configuration is the same as that of the first embodiment.

As in the first embodiment, the heat insulating sheet is provided with a plurality of strip-shaped adhesive portions 21 which are parallel to the vertical direction at least at both ends and the center. In FIG. 2 (b), on the non-adhesion portion 22 other than the adhesion portion of the heat insulating sheet, a grip piece 25 is formed by a half-cut line a from the both end edges of the central band-like adhesion portion 21 as a starting point. 21 are symmetrically defined so as to straddle 21.

The tip and the end of the half-cut line a
Are tied together. Similarly to the first embodiment, the heat insulating sheet is wound around the outer periphery of the body 11 of the paper cup main body 10, and the heat insulating sheet bonding portion 21 and the outer periphery of the body of the paper cup main body are bonded to complete the heat insulating paper cup container 2 of the present invention. Let it.

In use, for example, the two tabs 25, 25 provided on the body of the heat-insulating paper cup container containing hot noodles are cut at the seam of the half-cut line a at the bending line b. While bending, pull it out of the container,
The container can be easily lifted by holding the two knob pieces in an overlapping manner, and the hands and the like do not become hot. Further, the two knob pieces 25 may be adhered.

In order to evaluate the produced heat-insulating paper cup container, the instant noodles were put into the container, poured into boiling water and allowed to stand for 3 minutes, and then the knob was held by hand, but it was not hot and could not be held.

[0029]

As described above, according to the present invention, since the knob is used while being raised from the trunk, it can be used in a microwave oven. Also, when not in use (during distribution), the knob is in a state of being folded into the trunk and does not interfere with the loading, so that the loading efficiency is not affected. Since the knob piece is integrated with the cup body, it is not easily removed and the safety is high. Since the knob piece can be manufactured at the same time as punching the blank sheet of the insulation sheet,
No new machines or processes are required.

[Brief description of the drawings]

FIG. 1A is a perspective view of a heat-insulating paper cup container according to an embodiment of the present invention, FIG. 1B is a plan view of a heat-insulating sheet, and FIG. 1C is a perspective view of a paper cup. is there.

FIG. 2A is a perspective explanatory view of a heat-insulating paper cup container according to another embodiment of the present invention, and FIG. 2B is a plan explanatory view of the heat-insulating sheet.

[Explanation of symbols]

 1, 2 ‥‥ heat-insulating paper cup container 10 ‥‥ paper cup body 11 ‥‥ trunk 20 ‥‥ heat-insulating sheet 21 ‥‥ adhesive part 22 ‥‥ non-adhesive part 23, 25 ‥‥ knob piece a ‥‥ half-cut line b ‥‥ Bending line

Claims (5)

[Claims] 1. A paper cup body and a fan-shaped heat insulating sheet along the outer periphery of the body of the paper cup body. The heat insulating sheet is provided at a predetermined position in two directions surrounded by half-cut lines in three directions upward. The tab is provided at an opposite position so as to be in the direction toward the pivot of the fan, and the heat insulating sheet is wrapped around the outer periphery of the body of the paper cup body. Are bonded at portions other than the knob piece. 2. A paper cup body and a fan-shaped heat-insulating sheet along the outer periphery of the body of the paper cup body. The heat-insulating sheet is provided with a plurality of strip-shaped adhesive portions, and a non-adhesive portion other than the adhesive portion is provided. A grip piece is provided symmetrically so as to straddle the band-shaped adhesive portion by a half-cut line from both ends of the band-shaped adhesive portion as a starting point at a predetermined position. A heat insulating sheet and an outer periphery of a body portion of the paper cup body are adhered to each other at a portion other than the knob piece. 3. The heat-insulating paper cup container according to claim 1, wherein the knob is provided above the center of the heat-insulating sheet. 4. The heat-insulating sheet is made of a corrugated single-sided cardboard obtained by laminating a liner on one side of a corrugated middle core,
This single-sided corrugated cardboard is cut into a fan shape so that the corrugation of the core is in the direction toward the corner of the fan at the center in the lateral direction of the fan. The heat-insulating paper cup container according to claim 1, 2 or 3, wherein the heat-insulating paper cup container is positioned on the paper cup body. 5. The heat-insulating paper cup container according to claim 1, wherein the heat-insulating sheet is a foamed plastic sheet.