JP2001019059A - Lid material with hot water draining holes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide excellent sealability in a packaged state and easily and quickly drain hot water without leaking by sectioning a region formed with water draining hole cuts and laminating an outer lid with the region formed with the water draining hole cuts peelable on an inner lid. SOLUTION: The lid material 1 comprises an inner lid 20 and an outer lid 10 partially formed with a mold release layer 15, wherein the lids are laminated in a manner that they can be partially peeled. The inner lid 20 is formed with a curved inner lid cut 3 which is curved like a recess toward a tab 2 approximately at the center, while a plurality of hot water draining hole cuts 4 are formed on a periphery opposite to the tab 2. The outer lid 10 is formed, except a portion 16 which is not formed with a mold release layer opposite to the center of the cuts 4, with a mold release layer 15 opposite to a region where the inner lid 3 and the cuts 4 are formed. The lid material 1 is heat-bonded to a mouth of a container 5 and peeled, whereby the inner lid 20 opposite to the tab 2 is left from the inner lid cut 3 with hot water draining holes formed and an approximate half of an opening remains covered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid material with a drain hole, such as a container for fresh noodles, which is used for boiling water after distorting noodles in the container.

[0002]

2. Description of the Related Art Conventionally, as for a container which is used after boiling noodles in a container like a cup of raw noodles, the raw noodles, utensils, sauces, etc. are placed in a plastic molded container made of expanded polystyrene or the like. In general, a package is used which is housed, fitted with a plastic molded lid having a cut formed as a hot water hole, sealed, and shrink-wrapped with a shrink film as a whole. However, in the case of the container having the above-described configuration, the notch serving as the hot water hole is formed, so that the sealing performance is poor. For this reason, there are drawbacks such as the possibility that the lid may come off from the container when hot water is drained, or hot water may leak from the gap between the lid and the container, causing burns.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a lid member having a drain hole which is excellent in sealing property in a packaged state and which can be quickly drained by a simple operation without leaking hot water. That is.

[0004]

Means for Solving the Problems A cover material comprising a structure in which an outer cover and an inner cover are partially laminated so as to be releasable, and having a knob portion protruding outward on an outer peripheral edge, wherein the inner cover has A hot water hole cut is formed in a peripheral portion facing the knob, an inner lid notch is formed so as to divide an area where the knob and the hot water hole are formed, and a hot water hole is formed in an inner surface of the outer lid. This is a lid member having a configuration in which a release layer is partially formed so as to face a region where a cut is formed. After attaching this lid material to the container storing the raw noodles by heat bonding, grasp the knob and peel off the lid material from the container, and when peeling reaches the inner lid cut, the inner lid cut After that, the inner lid and the outer lid are peeled off with the part surrounded by the notch formed in the inner lid adhered to the outer lid, and a drain hole is formed in the mouth of the container Only the inner lid thus attached is in a bonded state. In this state, take out the raw noodles, soup, ingredients, etc. stored in the container from the cut-out opening of the inner lid, put only the raw noodles in the container, inject water and heat with a microwave oven or hot water After pouring the noodles, the noodles can be easily drained from the drain holes of the inner lid adhered to the container.

[0005] In the above-mentioned lid material having a hot water hole, the region facing the center of the hot water hole cut on the inner surface of the outer lid is formed as a part where no release layer is formed, so that the lid material is peeled off. At this time, since the portion of the inner lid surrounded by the cut hole is removed in a state of being adhered to the outer lid, the drain hole can be formed reliably.

In the above-mentioned lid material having a hot water hole, since the inner lid cut has a curved shape convexly curved toward the side where the hot water hole is formed, the opening is widened and accommodated in a container. Raw noodles, utensils, soups, etc. are easy to take out, and it is safe because hot water does not overflow from both sides of the container when draining hot water.

[0007] In the above-mentioned lid material with a hot water hole, the hot water hole cut and the inner lid cut are formed after the inner lid and the outer lid are laminated.
With the configuration formed by half-cutting from the inner surface of the inner lid, it is possible to easily form a hot water hole cut and an inner lid cut that penetrate the inner lid at a predetermined position of the lid material.

[0008] In the above-mentioned lid material having a drain hole, the outer lid is composed of a plastic film layer and a paper layer, and the inner lid is composed of a plastic film layer and a thermo-adhesive resin layer. By providing a half-cut from the surface of the conductive resin layer, it is possible to easily form a hot water hole cut and an inner lid cut penetrating the inner lid. Further, microwave heating can be performed in a state where the inner lid having the drain hole is adhered to the container.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a bottom view showing a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line II of FIG. 1 showing a laminated structure of the first embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view of a state in which the lid member of the first embodiment is adhered to the container, and FIG. 5 is a bottom view showing a second embodiment of the present invention. 1, 1 'is a lid material, 2, 2' is a knob, 3, 3 'is an inner lid cut, 4, 4' is a hot water cut, 5 is a container, 6 is a heat bonding part, 7 is hot water. Cut holes,
10 is an outer lid, 11 is a plastic film layer, 12 is an adhesive layer, 13 is a paper layer, 14 is a printed layer, 15 is a release layer, 16 is a release layer non-formed portion, 20 is an inner lid, 21 and 23 Represents a polyethylene layer, 22 represents a plastic film layer, and 24 represents a thermoadhesive resin layer.

A first embodiment of the present invention is as shown in FIGS. 1 and 2, and has an outer lid 10 and an inner lid 20 which are releasably laminated via a partially formed release layer. Circular lid 1
It is. As shown in FIG. 1, the shape of the inner surface of the lid member 1 is a circular shape in which a knob 2 protruding outward at the periphery is formed. A plurality of hot water cut holes 4 penetrating the lid 20 are formed,
A curved inner lid notch 3 that is concave toward the knob 2 so as to penetrate the inner lid 20 at a substantially central portion of the lid 1 so as to divide a region where the knob 2 and the hot water hole cut 4 are formed. It is a formed configuration.

[0011] As shown in FIG.
In order from the inner surface, an inner lid 20 composed of a heat-adhesive resin layer 24, a polyethylene layer 23, a plastic film layer 22, and a polyethylene layer 21, a release layer 15, a paper layer 13, a printing layer 14, and a polyethylene The outer lid 10 composed of the layer 12 and the plastic film layer 11 is configured to be releasably laminated between the release layer 15 and the polyethylene layer 21 which are partially formed. A curved inner lid notch 3 which is curved so as to be concave on the side of the knob 2 is formed, and a plurality of hot water hole cuts 4 are formed in a peripheral portion of the inner lid notch 3 on a side opposite to the knob 2. The release layer is formed on the surface of the paper layer 13 of the outer cover 10 so as to face the region where the inner cover cut 3 and the cut hole 4 are formed, except for the portion facing the center of the cut hole 4. This is a configuration in which 15 is formed.

As shown in FIG. 3, a cross section of the lid 1 of the first embodiment in which the lid 1 is thermally bonded to the opening of the container is shown in FIG. The heat-adhesive resin layer 24 on the inner surface of the lid 1 and the flange of the container 5 are heat-bonded at the heat-bonding portion 6 so as to cover the mouth.

A container 5 to which the lid 1 shown in FIG. 3 is attached.
In use, when the gripping portion 2 is grasped and the lid 1 is peeled off from the container 5, the thermal bonding portion 6 between the thermal adhesive resin layer 24 on the inner surface of the lid 1 and the flange portion of the container 5 is peeled off. Will come. When the lid material 1 is peeled off from the container 5 and reaches the inner lid notch 3, the outer lid 10 and the inner lid
20 are laminated via a partial release layer 15 and the outer lid 10
Since the adhesion between the inner lid 20 and the inner lid 20 is not strong, the outer lid 10 and the inner lid 20 easily come off at the interface between the release layer 15 of the outer lid 10 and the polyethylene layer 21 of the inner lid 20. Furthermore, when the peeling continues to reach the hot water hole cut 4, the inner lid 20 in the portion surrounded by the hot water hole cut 4 is formed.
Is pulled out in a state where it is adhered to the outer lid 10 and the hot water hole cut 4
A hot water draining hole 7 is formed in the portion. The paper layer surface of the outer lid 10 facing the center of the hot water hole cut 4 is formed as a release layer non-formed portion 16 where the release layer 15 is not formed. Since the adhesive is strong, the portion surrounded by the hot water hole cut 4 is removed, so that the hot water hole 7 can be reliably formed.

In a state in which the lid 2 is completely peeled off from the container 5 by grasping the knob 2, as shown in FIG. 4, the lid 1 shown in FIG. The inner lid 20 remains adhered to the container 5 in a state where the drain hole 7 is formed, so that about half of the opening of the container 5 is covered. In this state, raw noodles, ingredients,
Take out the contents such as soup, put only the raw noodles in the container again, pour water and heat with a microwave oven or pour hot water and shake the noodles, then tilt the container and adhere to the mouth of the container Hot water can be easily removed from the hot water hole 7 of the inner lid 20. Next, the inner lid 20 adhered to the container mouth is
Then, the ingredients and soup are put in a container, and water is added and heated in a microwave oven or hot water is poured into the noodles in a cup.

The cover 1 'according to the second embodiment of the present invention has the same basic structure as the cover 1 according to the first embodiment, and differs in that the shape is quadrangular. As shown in FIG. 5, the shape of the inner surface of the lid member 1 'is a quadrangular shape in which a knob 2' projecting outward at one corner is formed. A plurality of cut holes 4 ′ penetrating the inner lid 20 are formed in the opposing corner regions, and the cover is formed so as to divide the area where the knob 2 ′ and the cut hole 4 ′ are formed. In this configuration, a curved linear inner lid cut 3 ′ having a concave shape is formed on the side of the knob 2 ′ penetrating the inner lid 20 substantially at the center of the material 1 ′.

When using a container such as raw noodles in which the lid 1 'is attached to a container having a square opening, the lid 1' is the same as the lid 1 of the first embodiment. By peeling off the lid material 1 ′ from the container, the inner lid 10 in which the drain hole 7 is formed at the corner opposite to the knob 2 ′ remains so as to cover about half of the opening of the container, In the same manner as in the case of the lid 1 of the first embodiment, hot water can be drained after the raw noodles are distorted.

In the embodiment, the shape of the lid material is circular,
Although described as a square shape, the shape is arbitrary and may be in accordance with the shape of the opening of the container. The inner lid cut formed in the inner lid is preferably formed in a state of a substantially bisector passing through the center.
In this case, in a state where the lid material is peeled off from the container, substantially half of the opening of the container is covered with the inner lid having the drain hole formed therein, so that the drain hole can be easily drained. You can do it. The shape, size and number of the hot water hole cuts are arbitrary, and the position and number may be determined so that the noodles do not leak out and can be quickly hot water drained.

As the resin for forming the release layer, a single or mixture of nitrified cotton, polyamide resin, polyester resin, acrylic resin, butyral resin and the like can be used. If necessary, a small amount of silicone or the like may be added.
The release layer is formed by printing on the paper surface by gravure printing or the like using the ink composed of the above resin. The release layer is usually formed by printing on a solid printing plate, but it can also be formed in a dot shape using a dot printing plate having a dot area ratio of 50 to 80%. The adhesive strength between the outer lid 10 and the inner lid 20 at the portion where the release layer is formed can be changed depending on the type of the resin used or the dot area ratio.

The paper layer 13 in the lid member having a hot water hole according to the present invention
For example, art paper having a basis weight of 70 to 120 g can be used. As the heat-adhesive resin layer 23, a resin mainly composed of an ethylene-vinyl acetate copolymer which can be hot-melted and extruded for lamination can be used. The heat adhesive resin layer may be directly subjected to extrusion lamination by applying an anchor coat to the surface of the plastic film layer 22, or may be laminated via the polyethylene layer 23 as in the embodiment. As the plastic films 11, 22, biaxially oriented films such as biaxially oriented polyethylene terephthalate, biaxially oriented nylon, and biaxially oriented polypropylene can be used.
Further, an aluminum foil can be used instead of the plastic film 22. As the laminated structure of the lid material, polyethylene terephthalate (PET) 12 μ / dry lamination (DL) / printed layer / art paper 85
g / release layer / polyethylene (PE) 20μ / polyethylene terephthalate (PET) 16μ / polyethylene (P
E) 20μ / heat-adhesive resin layer 20μ, PET 12μ / D
L / print layer / art paper 85g / release layer / DL / PE1
6μ / PE20μ / Heat-adhesive resin layer 20μ, PET12
μ / DL / printed layer / art paper 85g / release layer / PE2
0 μ / 17 μm of aluminum foil / 20 μm of heat-adhesive resin layer.

The method for manufacturing the lid member with a hot water hole according to the embodiment of the present invention is as follows. After the printing process of forming a printing layer on the surface of a roll-shaped paper such as a piece of art paper, and in-line printing and forming a partial release layer in register with the printing layer on the back of the paper, A biaxially stretched polyethylene terephthalate film is laminated by dry lamination using a urethane-based adhesive on the printing layer surface of the paper on which a partial release layer has been formed to prepare a base material for an outer lid. Next, a biaxially stretched polyethylene terephthalate film is laminated by hot-melt extrusion lamination of polyethylene on the paper surface on which the partial release layer of the outer lid base material prepared above is formed. A polyethylene layer and a heat-adhesive resin layer are laminated on the film surface by hot-melt extrusion lamination to prepare a roll-shaped laminate for a lid material. Finally, the lid material can be cut at a predetermined position and punched into a predetermined shape to produce a lid material.

[0021]

According to the present invention, there is provided a lid member having a structure in which an outer lid and an inner lid are partially laminated so as to be peelable, and having a knob portion protruding outward on an outer peripheral edge. A hot water hole cut is formed at the peripheral edge opposite to, and an inner lid cut is formed so as to divide a region where the knob portion and the hot water hole cut are formed,
A lid member having a configuration in which a release layer is partially formed so as to face a region where a hot water hole cut is formed on the inner surface of the outer lid. After attaching this lid material to the container storing the raw noodles by heat bonding, grasp the knob and peel off the lid material from the container, and when peeling reaches the inner lid cut, the inner lid cut After that, the inner lid and the outer lid are peeled off with the part surrounded by the notch formed in the inner lid adhered to the outer lid, and a drain hole is formed in the mouth of the container Only the inner lid thus attached is in a bonded state. In this state, take out the raw noodles, utensils, soup, etc. stored in the container from the cut-out opening of the inner lid, put only the raw noodles in the container, inject water and heat with a microwave oven or After pouring the noodles,
The hot water can be easily drained from the hot water hole of the inner lid adhered to the container. In the lid material with a drain hole, by having a configuration in which the region facing the center of the cut hole on the inner surface of the outer lid is a release layer non-forming portion, when the lid material is peeled off, Since the portion of the inner lid surrounded by the cut hole is removed while being adhered to the outer lid, the drain hole can be reliably formed. In the above lid material with a hot water hole, since the inner lid cut has a curved shape that is convexly curved toward the side where the hot water hole cut is formed, the raw noodles whose opening is widened and accommodated in a container, The utensils, soups, etc. are easy to take out, and it is safe because hot water does not overflow from both sides of the container when draining hot water. In the above-mentioned lid material with a drain hole, the lid material is formed by half-cutting from the inner surface of the inner lid, after the inner lid and the outer lid are laminated, after the inner lid and the outer lid are laminated. The hot water hole cut and the inner lid cut that penetrate the inner lid can be easily formed at the predetermined position. In the above lid material with a drain hole, the outer lid is made of a plastic film layer and a paper layer, and the inner lid is made of a plastic film layer and a thermo-adhesive resin layer. By providing a half cut from the inner cover, a hot water hole cut and an inner lid cut that penetrate the inner lid can be easily formed. The microwave oven can be heated in a state where the inner lid having the drain hole is adhered to the container.

[Brief description of the drawings]

FIG. 1 is a bottom view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line II of FIG. 1 and showing a laminated structure according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the lid member of the first embodiment is adhered to the mouth of the container.

FIG. 4 is a cross-sectional view showing a state in which a lid member of the first embodiment adhered to a container is peeled off.

FIG. 5 is a bottom view showing a second embodiment of the present invention.

[Explanation of symbols]

 1, 1 'lid material 2, 2' knob part 3, 3 'inner lid cut 4, 4' hot water cut hole 5 container 6 heat bonding part 7 hot water cut hole 10 outer lid 11 plastic film layer 12 adhesive layer 13 paper Layer 14 Printing layer 15 Release layer 16 Release layer non-formed area 20 Inner lid 21, 23 Polyethylene layer 22 Plastic film layer 24 Thermal adhesive resin layer

Continued on the front page F-term (reference) 3E084 AA02 AA05 AA12 AA14 AB10 BA01 BA06 BA07 BA08 BA09 CA01 CA03 CB01 CB02 CB04 CC02 CC03 CC04 CC07 CC08 FD13 GB08 GB17 LA02 LA17

Claims (5)

[Claims] 1. A lid material having a configuration in which an outer lid and an inner lid are partially laminated so as to be peelable, and having a knob portion protruding outward at an outer peripheral edge, wherein the inner lid includes A hot water hole cut is formed at a peripheral portion facing the knob, an inner lid cut is formed so as to divide an area where the knob and the hot water hole are formed, and an inner surface of the outer lid is formed. A cover material having a hot water hole, wherein the cover material has a configuration in which a release layer is partially formed so as to face a region where the hot water hole cut is formed. 2. The lid member with a drain hole according to claim 1, wherein a region of the inner surface of the outer lid facing the central part of the cut hole is a part where a release layer is not formed. . 3. The hot water hole according to claim 1, wherein the inner lid cut has a curved shape convexly curved toward the region where the hot water cut is formed. Lid material. 4. The hot water hole cut and the inner lid cut are formed by half-cutting from the inner surface of the inner lid after the inner lid and the outer lid are laminated. The lid material with a hot water hole according to any one of claims 1 to 3. 5. The method according to claim 1, wherein the outer lid comprises a plastic film layer and a paper layer, and the inner lid comprises a plastic film layer and a heat-adhesive resin layer. Cover material with hot water hole.