JP2023009791A - Label and container - Google Patents

Abstract

A label and a container are provided which are suitable for preventing the leakage of moisture or the like from the contents of a top-sealed container after heating the container with a microwave oven or the like.
SOLUTION: While the label 5 is being peeled off from the top surface of the container, it is possible to heat while maintaining the peeled state in which the vapor release hole 4a of the top seal 4 is exposed by the support portion 5b formed by the cut. After the heating is completed, the support by the supporting portion 5b can be released, and the vapor release hole 4a of the top seal 4 can be sealed again with the label 5.
[Selection drawing] Fig. 3

Description

The present invention relates to a label and a container to which the label is attached.

There are products in which cooked foods heated in a microwave oven are stored in containers. As such a container, there is a top-seal container in which a lid material film is melt-adhered to the opening edge of the container by heat sealing (see, for example, Patent Document 1).

JP 2018-70191 A

When a container containing cooked food or the like is heated in a microwave oven, steam generated from the food increases the internal pressure of the container, which may cause the container to burst and the food to scatter.

For this reason, in the above-described top-sealed container, part of the top seal, which is the lid material film, for example, in the case of a container that is rectangular in plan view, part of the top seal at the corners of the container is opened to release the internal pressure. I try to keep it from rising and heat it in the microwave.

However, since the package remains unsealed even after heating, there is a risk that the contents may be leaked.

The present invention has been made in view of such circumstances, and provides a label and a container suitable for preventing the contents from leaking after heat-treating the top-seal container in a microwave oven or the like. With the goal.

In order to achieve the above object, the present invention is configured as follows.

(1) A label according to the present invention is a label attached to the top surface of a container, and has a support portion formed by a notch, and the label attached to the top surface is attached to one end of the label. In the middle of peeling from the label to the other end side, the support part protrudes to the one end side before peeling, and the tip thereof contacts the top surface, thereby supporting the peeled part and peeling the label. maintain state.

For example, the label according to the present invention is attached to the top surface of a container containing food that is heated in a microwave oven or the like as a content so as to cover the steam release part for discharging steam generated by heating, When heating the container with a microwave oven or the like, the label is peeled off from one end to the other before heating. In the middle of this peeling, the vapor release part of the top surface is exposed, and the supporting part formed by the cut protrudes due to the rigidity of the label to one end side opposite to the other end side, which is the peeling direction, and the tip is in contact with the top surface to support the peeled portion other than the support portion, thereby maintaining the peeled state in which the vapor release portion of the top surface is exposed.

In this way, the label can be heated in a microwave oven or the like while maintaining the peeled state in which the vapor venting portion is exposed by the support portion. It does not stick to the surface to seal the steam vent.

Further, after heating with a microwave oven or the like is completed, the support by the supporting portion is released, and the label can be adhered to the top surface again to seal the vapor release portion.

Therefore, unlike conventional top-sealed containers, when heating in a microwave oven, there is no need to partially open the top seal, and after heating in a microwave oven, etc., the contents can be removed from the unsealed container. There is no such thing as leakage.

(2) According to one aspect of the present invention, the support portion is formed into a tongue shape directed toward the other end by the cut.

According to this embodiment, while peeling the label from one end side to the other end side, the tongue-shaped supporting portion formed so as to face the other end side by the cut is formed by the rigidity of the label. The tip of the tongue-shaped support portion protrudes toward one end side opposite to the peeling direction and contacts the top surface to support the peeled portion of the label, thereby maintaining the peeled state.

(3) In another embodiment of the present invention, the one end side of the label is provided with a knob.

It is preferable that the grip portion is a non-adhesive area that does not adhere to the top surface of the container so that it can be easily gripped.

According to this embodiment, it is possible to easily pinch the tab on one end side of the label and peel it off to the other end side.

(4) In a preferred embodiment of the present invention, the support portion is a non-adhesive area.

According to this embodiment, while the label is being peeled from one end side to the other end side, the supporting portion partitioned by the cut protrudes toward the one end side opposite to the peeling direction, but forms a non-adhesive area. Since the support portion is not adhered to the top surface, it is easy to move, and the projection to the one end side is performed smoothly.

(5) In another embodiment of the present invention, the cuts that form the support portion include first cuts extending from each of the two starting ends toward the other end, and end portions of the first cuts. and a connecting second notch.

According to this embodiment, when the label reaches the second cut forming the tip of the support part while being peeled off from one end to the other end, the label is partitioned by the first cut and the second cut. Due to the rigidity of the label, the support part protrudes toward one end opposite to the peeling direction, and the tip formed by the second cut abuts and supports the top surface to maintain the label in the peeled state. be able to.

(6) In a preferred embodiment of the present invention, the second cut is a curved cut that bulges toward the other end.

According to this embodiment, since the second cut is a curved cut that bulges toward the other end, the support portion protrudes toward the one end when peeling the label from the one end to the other end. The force in the direction of pulling is gradually applied as the peel progresses, and the protrusion can be made smoothly.

(7) In one embodiment of the present invention, each of the two starting ends has an arc-shaped notch.

According to this embodiment, the starting end of the incision can be made arc-shaped to disperse the force applied during peeling, thereby preventing breakage of the starting end of the incision.

(8) A container according to the present invention comprises a container body having an opening at the top, a top seal that is joined to the container body so as to cover the opening of the container body and constitutes a top surface, and a top seal that is adhered to the top seal. and a label according to any one of the above (1) to (7), wherein the top seal is formed with a steam release portion for discharging steam generated by heating, and the label is attached to the top seal , is attached so as to cover the steam release portion.

According to the container according to the present invention, for example, when the container containing food as the content is heated in a microwave oven or the like, prior to heating, the top seal is attached so as to cover the steam release part. The label is peeled from one end side to the other end side, the supporting portion is protruded to the one end side opposite to the peeling direction, and the tip of the supporting portion is brought into contact with the top surface to put the label in the peeled state. can be maintained and heated.

(9) In a preferred embodiment of the present invention, the vapor release portion is exposed when the support portion of the label maintains the peeled state of the label.

According to this embodiment, the label attached so as to cover the vapor release portion of the top seal is peeled off from one end side to the other end side, and the support portion protrudes toward the one end side opposite to the peeling direction. and the tip of the support portion is brought into contact with the top surface to maintain the peeled state of the label, the vapor release portion of the top seal is exposed. Due to the rigidity of the label, there is no possibility that the label will return to the state before peeling and will be stuck to the top face again to seal the steam release portion.

Further, after heating with a microwave oven or the like is completed, the support by the supporting portion is released, and the label can be adhered to the top surface again to seal the vapor release portion.

Therefore, unlike the case of heating a conventional top-sealed container in a microwave oven, there is no need to open a part of the top seal, and after heating in a microwave oven, etc., the contents can be extracted from the opened container. does not leak.

According to the present invention, for example, the label is attached to the top surface of a container containing food so as to cover a steam vent for discharging steam generated by heating, and the container is placed in a microwave oven or the like. When using and heating, prior to heating, when the label is peeled off from the top surface, the vapor release portion of the top surface is exposed during the peeling, and is peeled off by the support formed by the cut. It is possible to maintain the detached state in which the vapor release portion is exposed by supporting the exposed portion.

In this way, the label can be heated in a microwave oven or the like while maintaining the peeled state in which the vapor venting portion is exposed by the support portion. It does not stick to the surface to seal the steam vent.

Further, after heating with a microwave oven or the like is completed, the support by the supporting portion is released, and the label can be adhered to the top surface again to seal the vapor release portion.

Therefore, unlike the case of heating a conventional top-sealed container in a microwave oven, there is no need to open a part of the top seal, and after heating in a microwave oven, etc., the contents can be extracted from the opened container. does not leak.

FIG. 1 is a plan view of a container with a label according to one embodiment of the invention. FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3 is a perspective view showing a state in which the label has been peeled off. FIG. 4 is a cross-sectional view corresponding to FIG. 3 showing a state in which the label has been peeled off. FIG. 5 is a plan view showing a modification of the label. FIG. 6 is a plan view of a label according to another embodiment of the invention. FIG. 7 is a plan view of a label according to still another embodiment of the invention. FIG. 8 is a plan view of a label according to another embodiment of the invention.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a container 1 with a label according to one embodiment of the invention, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

The container 1 of this embodiment comprises a container body 2 containing contents (not shown) such as cooking food to be heated in a microwave oven, and a top seal 4 as a cover material film closing an upper opening 3 of the container body 2. , and a label 5 attached to the top seal 4. - 特許庁

This container 1 is a top-seal container in which a top seal 4 constituting the top surface of the container 1 is heat-sealed to the upper surface of a brim-shaped flange portion 2a surrounding an upper opening 3 of a container body 2. As shown in FIG. A steam vent hole 4a having a circular shape in a plan view is formed in the central portion of the top seal 4 as a steam vent portion for discharging steam generated when the top seal 4 is heated in a microwave oven. The steam release portion is not limited to a circular shape as long as it can discharge steam or the like generated by heating, and may be semicircular, elliptical, rectangular, or any other shape.

The label 5 is affixed to the top seal 4 so as to cover the steam vent hole 4a at its substantially central portion. The label 5 is configured by forming an adhesive layer on one side (the side to be adhered to the top seal 4) of a flexible transparent base film.

The container body 2 and the top seal 4 are made of, for example, synthetic resin such as polypropylene, polyethylene, polyethylene terephthalate.

The base film of the label 5 is, for example, a film made of polyethylene terephthalate, polypropylene, or the like. As will be described later, the label 5 is partially peeled off so that the steam vent hole 4a is exposed, and then adhered again. preferable.

When the container 1 of this embodiment is heated in a microwave oven, it is not necessary to peel off a part of the top seal 4 as in a conventional top seal container. By exposing the steam vent hole 4a in the central part of the container 4, steam and the like generated from the contents of the container 1 are discharged from the steam vent hole 4a.

After the label 5 is peeled off so that the vapor vent hole 4a of the top seal 4 is exposed, the rigidity of the label 5 causes the label 5 to return to its original state and stick to the top seal 4 again to block the vapor vent hole 4a. In order to avoid this, it is configured as follows.

The label 5 of this embodiment has a substantially rectangular shape, and is provided with a tab 5a projecting outward in a trapezoidal shape at one end in the longitudinal direction (horizontal direction in FIGS. 1 and 2). The shape of the label 5 is not particularly limited as long as it can completely cover the steam vent hole 4a of the top seal 4, and may be oval or other shape.

On the other end side of the label 5 in the longitudinal direction, that is, on the side opposite to the knob portion 5a, a notch 5c is provided to form a support portion 5b that supports the partially peeled label 5 and maintains the peeled state. It is The support portion 5b defined inside by the cut 5c has a tongue-like shape extending toward the other end.

The cuts 5c include first cuts 5c ₁ and 5c ₁ extending substantially parallel from one end side to the other end side, and second cuts 5c connecting the ends of the first cuts 5c ₁ and 5c ₁ in a curved line. ₂ . The _second cut 5c2 is formed in an arc shape so as to expand toward the other end. Each of the two leading ends 5c ₃ , 5c ₃ of the first incisions 5c ₁ , 5c ₁ has a small diameter semicircular curved portion, which distributes the force applied during peeling. to prevent breakage.

The tongue-like support 5b is demarcated on its inside by an incision 5c which connects each of the two beginnings 5c ₃ , 5c ₃ by a first incision 5c ₁ , 5c ₁ and a second incision 5c ₂ . There is no notch between the two starting ends 5c ₃ , 5c ₃ , and it continues to the part other than the supporting part 5b.

The knob portion 5a and the tongue-like support portion 5b of the label 5 are non-adhesive areas where no adhesive layer is formed. This non-adhesive area may be formed by coating a non-adhesive resin on the adhesive layer.

In this embodiment, for example, when a convenience store clerk heats the container 1 in a microwave oven, prior to heating, the picking portion 5a on one end side of the label 5 is picked with fingers, and the one end side is heated to the other end. Peel off so as to pull up toward the side. During this peeling, the vapor release hole 4a in the central portion of the top seal 4 is exposed. Further, when the peeling reaches the vicinity of the second cut 5c2 of the tongue-shaped support portion 5b, the rigidity of the label 5 causes the bent label 5 to be separated from the cut 5c as shown in FIGS. A tongue-shaped support portion 5b partitioned by , protrudes to one end side before peeling in the direction opposite to the direction in which it separates from the curved portion and peels. After that, when the finger is released from the grip portion 5a, the label 5 tries to return to its original state due to its rigidity, but the tip of the protruding tongue-shaped support portion 5b comes into contact with the top seal 4 and is peeled off. It supports the curved portion and maintains the peeled state of the curved portion.

When the label 5 is peeled off, the tongue-like support portion 5b is a non-adhesive region where no adhesive layer is formed, as is the case with the knob portion 5a, as shown in FIG. and smoothly protrude to one end side opposite to the peeling direction.

In this manner, the label 5 can be maintained in a peeled state with the steam vent hole 4a of the top seal 4 exposed. In this separated state, the container 1 is placed in a microwave oven and heated. Since the peeled state of the label 5 is maintained by the supporting portion 5b in this manner, the label 5 returns to the state before peeling and is re-adhered to the top seal 4 during heating, thereby sealing the steam vent hole 4a. never.

After the heating is completed, the support by the supporting portion 5b is released, and the label 5 is adhered to the top seal 4 again to close the vapor release hole 4a.

As described above, according to the present embodiment, unlike the conventional top-sealed container, it is not necessary to partially open the top-sealed container and heat it in a microwave oven. The heating may be performed while keeping the vapor release hole 4a of 4 exposed. After the heating is finished, the label 5 is attached again to close the vapor release hole 4a of the top seal 4. Therefore, after the heating is finished, the contents can be removed from the unsealed container like the conventional top-sealed container. There is no such thing as leakage.

In addition, as shown in FIG. 5, for example, the characters "OPEN" are printed on the knob portion 5a, and on the tongue-shaped support portion 5b, a message prompting peeling of the support portion 5b, for example, "Open" is printed. A message such as "Please turn over the label up to here" may be printed.

For example, as shown in FIG. 6, on both sides in the width direction of the other end side of the tongue _- shaped support portion 5b of the label 51, _a peel stop is provided to prevent the label 51 from being completely peeled off. 5d, 5d may be formed.

The shape of the support portion 5b is not particularly limited as long as it can support the peeled portion and maintain the peeled state. For example, as shown by the label ₅₂ in _FIG . It may be formed in a trapezoidal shape, or may be formed in a rectangular shape.

_In addition _, a plurality of supporting portions _, for example _, as shown in the _{label 53} in FIG. may be provided.

Furthermore, the label may have a known tamper-evident function. As the unsealing confirmation function, for example, when the label is unsealed, characters indicating that it has been unsealed, such as "VOID" or "unsealed", may remain on the label and be displayed. This makes it possible to detect unauthorized opening.

The base film constituting the label is not limited to a single film, and may be a laminated film.

In the above embodiment, the label is attached to the top seal of the top-seal container, but the label may be attached to the top surface of a container made of other cover materials, not limited to the top-seal container.

Reference Signs List 1 container ₂ container body ₃ upper opening _{4 top} seal 4a steam vent hole ₅ , 51, 52, 53 label 5a knob 5b, 52b _, 53b support 5c, 52c _, 53c notch

Claims (9)

A label affixed to the top surface of the container,
having a support formed by an incision;
While peeling the label attached to the top surface from one end side to the other end side, the support portion protrudes toward the one end side before peeling, and the tip thereof contacts the top surface. By supporting the peeled part and maintaining the peeled state of the label,
A label characterized by The support portion is formed in the shape of a tongue directed toward the other end by the cut,
A label according to claim 1. A knob is provided on the one end side of the label,
3. A label according to claim 1 or 2. The support portion is a non-adhesive area,
4. A label according to any one of claims 1-3. The cuts forming the support portion include a first cut extending from each of the two starting ends toward the other end, and a second cut connecting the end portions of the first cuts,
5. A label according to any one of claims 1-4. The second cut is a curved cut that bulges toward the other end,
A label according to claim 5. Each of the two starting ends has an arcuate cut,
A label according to claim 5 or 6. a container body having an opening at the top; a top seal that is joined to the container body so as to cover the opening of the container body and constitutes a top surface; and claims 1 to 7 adhered to the top seal. A container comprising the label according to any one of
The top seal is formed with a steam vent for discharging steam generated by heating,
The label is attached to the top seal so as to cover the steam release portion.
A container characterized by: When the supporting portion of the label maintains the peeled state of the label, the vapor release portion is exposed.
9. Container according to claim 8.

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