JP2016016868A - Hot water drain lid and packaging container using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lid material which does not impair an appearance when an oil or a liquid component seeps out to the lid material in the lid material for cup noodles or the like requiring to drain hot water.SOLUTION: In a lid that is sealed on an opening part of a container for forming a sealed container, the lid comprises a laminate in which an upper layer 2 and a lower layer 3 are partially detachable through a detachment layer 5, and one or more hot water drain holes 8 appear by detaching the upper layer partially. The upper layer comprises a layer with at least concealing properties. In the hot water drain lid 1, the hot water drain hole is formed by a cutting line 9 provided on the lower layer by partially detaching a part of the upper layer in a detachment part to separate from the lower layer.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hot water lid for a cup container for food such as instant noodles and a packaging container using the lid.

  Instant noodles that are poured into noodles and ingredients in cup containers and used for food are served in various retail channels such as convenience stores and supermarkets through various distribution channels such as Chinese noodles, udon and soba. ing. When eating them, after opening a part of the lid and pouring hot water, the noodles are softened (cooked with hot water) after a predetermined time so that they can be edible.

  Depending on the product, some of the hot water is used as it is as edible soup with noodles, while others are softened with hot water and then thrown away like yakisoba or pasta and eat noodles without soup. Throwing away the unnecessary hot water at this time is called hot water cutting, and generally a small hole for hot water cutting is formed in the lid material and used to discharge only the hot water without causing the contents to flow out.

  When the soup is edible together with the noodles, the remaining part of the lid material, which has been partially opened after the noodles have softened, may be removed and edible. In addition, when throwing away hot water and eating only noodles without soup, the hot water is thrown away from a hole for hot water cutout provided in a part of the lid, and it is used for food after cooking.

  On the other hand, the noodles in the cup container are usually in a dried state, but they were softened with hot water for a short time and used for food, or fried in advance to give them a texture and flavor. Noodles are often used. In addition to oil, liquid contents may be used as seasonings.

JP 2013-189244 A JP 2013-249121 A

  In the case of a product of a type in which only the noodles softened by throwing away hot water are used for edible purposes, a hole provided for hot water cutting or a notch for forming a hole is provided in the lid material. The incision is provided by half-cutting from the surface of the lid material on the inside of the container. These hot water cutting holes are made to appear or be formed by peeling off the lid member or a part of the lid member after pouring hot water.

  The lid material stores contents such as noodles in a container, and then heat seals the container mouth to seal the contents. However, the oil or liquid component contained in the contents may ooze out from the hole for hot water cutting provided in the cover material, or from the portion subjected to the half cut for forming the hole for hot water cutting. .

For example, the contents and the back surface of the lid material may come into contact with each other due to vibration during handling or transportation, and an oil or liquid component contained in the content may permeate into the lid material from a portion where the back surface is half-cut. When soaking has occurred, there is a problem that the portion is discolored and the appearance of the lid, and consequently the product, is impaired.

  As a means to solve this problem, measures may be taken to print a relatively dark color on the hot water drainage portion of the lid, but the discoloration due to the soaking of oil or liquid components cannot be completely concealed. It was.

  In view of such a problem, the present invention uses a hot water lid that does not impair the appearance even when oil or a liquid component oozes into the lid material, such as cup noodles that require hot water drainage. It is an object to provide a packaging container.

  As a means for solving the above-mentioned problems, the invention according to claim 1 is characterized in that the upper layer and the lower layer can be partially peeled through the peeling layer in the lid that is sealed at the opening of the container to form a sealed container. A lid in which one or more hot water holes appear by partially peeling off the upper layer, wherein the upper layer comprises at least a layer having a concealing property, and the upper layer It is a hot water lid in which a hot water hole is formed by a cut line provided in the lower layer by partially peeling the part and separating from the lower layer.

  The invention according to claim 2 is the hot water lid according to claim 1, wherein the concealing layer is made of a metal vapor deposited film.

  The invention according to claim 3 is the hot water lid according to claim 1 or 2, wherein the cut line is formed by half-cutting.

  The invention according to claim 4 has a release layer in the release portion between the upper layer and the lower layer, and the release layer is applied with a pattern except for a hot water cut hole portion. It is a hot water lid in any one of Claims 1-3 characterized by the above-mentioned.

  According to a fifth aspect of the present invention, the lower surface of the upper layer and the upper surface of the lower layer are made of different plastic resins, and the lower surface of the upper layer and the upper surface of the lower layer are directly formed at the peeling portion. It is contacting, The hot water lid according to any one of claims 1 to 3.

  Moreover, invention of Claim 6 is comprised using the hot water lid in any one of Claims 1-5, It is a packaging container characterized by the above-mentioned.

  According to the first aspect of the present invention, it is possible to provide a hot water lid that does not impair the appearance even when oil or a liquid component oozes into the lid material, such as cup noodles that require hot water. .

  According to the invention of claim 2, it is possible to provide a hot water cup with less appearance deterioration even when oil or a liquid component oozes out on the cover material of the cup noodle that requires hot water cutting. It becomes. In addition, foreign matter contamination inspection using a metal detector is also possible.

  According to the third aspect of the present invention, it is possible to more easily form the hot water hole in the hot water cover such as cup noodles that require hot water cutting.

According to the fourth aspect of the present invention, it is possible to more easily and reliably form the hot water hole in the hot water cover such as cup noodles that require hot water cutting.

  According to the invention of claim 5, the upper layer and the lower layer of the lid material can be peeled off and the hot water cutting hole can be formed more easily without providing a peeling layer in the hot water cutting lid such as cup noodles that require hot water cutting. Is possible.

  According to the invention of claim 6, it is possible to provide a packaging container that does not impair the appearance even when the oil or liquid component oozes into the hot water lid.

FIG. 1 is a partial cross-sectional schematic view of an embodiment of a hot water lid according to the present invention. FIG. 2 is a partial cross-sectional schematic view of another embodiment of the hot water lid according to the present invention. FIG. 3 is a schematic cross-sectional view showing a peeled state of an embodiment of a hot water lid according to the present invention. FIG. 4 is a schematic plan view of an embodiment of a hot water lid according to the present invention. FIG. 5 is a schematic plan view of another embodiment of the hot water lid according to the present invention. FIG. 6 is a schematic plan view of another embodiment of the hot water lid according to the present invention. FIG. 7 is a schematic partial sectional view of a specific example of a hot water lid according to the present invention.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to FIGS.

FIG. 1 is a partial cross-sectional schematic view of an embodiment of a hot water lid according to the present invention.
The hot water lid (1) according to the present invention comprises an upper layer (2) and a lower layer (3). The upper layer (2) includes a metal vapor-deposited film (4) as a concealing layer and is detachably laminated with the lower layer (3) through the release layer (5). At this time, the upper layer (2) is disposed outside the container (15), and the lower layer (3) is disposed on the contents side (16).

  The upper layer (2) is a laminate of paper, a plastic film and a metal vapor-deposited film (4), and a printed layer can be provided between the front surface, the back surface, or both, or between layers.

  The lower layer (3) is composed of a base layer (6) and an adhesive layer (7) to the container, and the base layer (6) is a single body or a laminate of film, paper, metal foil, resin, and is necessary. In some cases, printing is appropriately performed on the front surface, the back surface, or both, or between layers. The adhesive layer (7) to the container seals the contents by adhesion to the container mouth. The thickness of the adhesive layer (7) to the container is suitably 10 μm to 100 μm.

  Peeling is performed between the peeling layer (5) and the lower layer (3), or between the peeling layers (5). In the hot water cut portion (12), the upper layer (2) and the lower layer (3) are peeled off to form dotted hot water cut holes (8). The release layer (5) may be pattern-coated with a release varnish on at least a portion where the upper layer (2) and the lower layer (3) are to be peeled off.

  Alternatively, the lower surface of the upper layer (2) and the upper surface of the lower layer (3) are brought into direct contact without providing the release layer (5), and different surfaces such as polyethylene and polypropylene or polyethylene and polyester are used for the respective contacting surfaces. A plastic resin may be used as the peeling mechanism.

By pulling up the peeling start tab (10) in the direction of the container outer side (15), peeling of the upper layer (2) and the lower layer (3) is started from the peeling start line provided by the peeling start line half cut (11). . At this time, the hot water cut hole (8) provided by the cut line (9) made in the lower layer (3) is pulled up so as to follow the upper layer, and a through hole appears in the lower layer (3). It becomes. The vicinity where the hot water cutting hole exists becomes the hot water cutting part (12).

  The cut line (9) and the peeling start line half cut (11) are applied from the lower layer (3) side with the upper layer (2) and the lower layer (3) laminated, and the depth of the half cut is the metal of the upper layer (2) The depth does not reach the vapor deposition film (4).

FIG. 2 is a partial cross-sectional schematic view of another embodiment of the hot water lid according to the present invention.
In this case, the metal vapor deposition film (4) is provided on the surface of the outer layer (15) of the upper layer (2). The position in the upper layer (2) of the metal vapor-deposited film (4) may be provided in any part of the layer as long as the cut line (9) and the peeling start line half cut (11) do not reach.

  Peeling is performed by pulling up the peeling start tab (10) in the direction of the container outer side (15), and the hot water cutting part (12) is from the peeling start line half cut (11) to the upper half cut (17).

  FIG. 3 is a schematic cross-sectional view showing the peeled state of the embodiment according to the present invention. It shows in detail how hot water cut holes (8) are formed by peeling the upper layer (2) and the lower layer (3). This schematic cross-sectional view corresponds to the embodiment shown in FIG.

  The upper layer (2) is provided with an upper layer half cut (17), whereby the upper layer (2) and the lower layer (3) starting from the peeling start line half cut (11) are separated by the upper layer half cut (17). ), The upper layer (2) is separated from the lower layer (3), and peeling of the hot water cutting portion (12) is completed. Peeling of the upper layer (2) and the lower layer (3) occurs due to the peeling layer (5), but since the peeling layer is not provided in the hot water cut hole (8), the line of break (9) The lower layer (3) of the hot water cut hole (8) portion is lifted up following the upper layer, and the hot water cut hole (8) is formed in the lower layer (3) as a through hole.

  FIG. 4 is a schematic plan view of an embodiment of the hot water lid according to the present invention. An opening tab (21) and a peeling start tab (22) are provided so as to protrude from the outer periphery of the container. The opening tab (21) is picked up with a finger at the time of opening, and the lid of the container and the container are partially peeled to create an opening for pouring hot water.

  When the noodles are softened by hot water and the unnecessary hot water is thrown away and drained, the peeling start tab (22) is picked up with fingers, and the upper layer of the peeling portion (24) from the peeling start line (25). The lower layer is peeled off to expose the hot water hole (23) provided in the peeling portion.

  At this time, the hot-cut hole of the lower layer that has been half-cut is lifted up together with the upper layer, and the hot-water cut hole appears as a through hole. Peeling is performed after exposing the hot water cut hole to a peeling end point (28) which is a boundary line between a portion where the peeling varnish is applied and a portion where the peeling varnish is not applied.

  The hot water hole (23) may have a circular shape as shown in the example of FIG. 4, but may have an elliptical shape, a tear shape, a track shape, a polygonal shape, or the like. Further, the shape may be any shape that allows hot water to pass through, such as a cut line or a cross shape, even if the shape is not enclosed by a half cut. The arrangement of the hot water cutting holes may be designed according to the shape of the container and the design of the product as long as there is no problem with hot water cutting. One or more hot water holes may be used.

In the case of a peeling mechanism using a peeling varnish, the peeling varnish is not provided in the hot water cut-out hole (23), and the pattern coating can be performed by applying the peeling varnish only to the surrounding peeling portion (24). . In this case, since there is no peeling varnish in the hot water cut-out hole (23), the upper layer and the lower layer are not peeled off, and peeling is performed by picking up the peeling start tab (22). The hot water cutting hole (23) is lifted up more reliably by the line (9), and a through hole can be formed. By forming the hot water cut hole (23) which has become a through hole, only the hot water can be thrown away without the contents flowing out when throwing away the unnecessary hot water by tilting the container.

  FIG. 5 is a schematic plan view of another embodiment of the hot water lid according to the present invention. In this example, the peeling start tab (22) is pinched and pulled up to start peeling of the upper layer and the lower layer from the peeling start line (25) to expose the peeling portion (26), and at the same time, lift the hot water by lifting the half cut portion. After forming the hole (23), the upper layer can be removed around the hot water cut hole by the upper layer cut line (27) formed by half-cutting the upper layer, and the upper layer after peeling can be separated from the lid material. .

  FIG. 6 is a schematic plan view of another embodiment of the hot water lid according to the present invention. The shape of the lid may be designed in accordance with the shape of the opening of the container such as a square shape or a circle. FIG. 6 shows an example embodiment of a circular hot water lid for a container having a circular container mouth.

  The arrangement and size of the hot water cutting holes are also arbitrary in consideration of the convenience of hot water cutting. In this example, the opening tab (21) and the peeling start tab (22) are provided on the opposite sides of 180 degrees with respect to the circumference, from the peeling start line (25) starting from the container mouth to the upper cut line (27). Five hot water cut holes (23) are provided in the peeling portion (26) along the inner circumference of the container mouth.

  When the hot water is finished and the noodles of the contents are to be seasoned or edible, the unsealing tab (21) is pulled up again to peel and remove the entire lid from the container.

  Since the subject of the present invention is to provide a cover material that does not impair the appearance even when oil or liquid components ooze out into the cover material, this point will be described in detail.

  When the contents sealed in the container contain oil or liquid components, the half-cut part provided in the lower layer of the lid is located on the contents side. Owing to vibration and storage, there is a concern that oil or liquid components may leak out when the contents come into contact with the half-cut portion.

  When this exudation oozes out from the half-cut portion to the paper base material, it causes discoloration of the paper base material, impairs its appearance, and leads to loss of commercial value.

  However, according to the present invention, since the upper layer of the lid has a metal vapor deposited film layer such as aluminum, even if discoloration occurs due to bleeding in a layer inside the container, it is invisible from the outside of the container. It is. The effect of the present invention is due to the concealing property of this metal vapor deposited film.

  FIG. 7 is a partial cross-sectional schematic view of a specific embodiment of a hot water lid according to the present invention. First, the upper layer (31) is created. The upper layer (31) is prepared by first printing with a pattern ink (36) on the film surface of an aluminum vapor-deposited film (39) comprising a film layer (37) and an aluminum vapor-deposited layer (38). Next, the said aluminum vapor deposition layer (38) and paper layer (41) are bonded together using an adhesive agent (40). For lamination, a dry lamination method or the like can be used.

  Further, a sealing varnish (42) and a release varnish (43) are provided by pattern coating using a printing method to obtain an upper layer (31) laminate. The pattern coating on the upper layer (31) at this time is a portion corresponding to the hot water cut portion (52) excluding the portion corresponding to the hot water cut hole (51). The purpose of coating the sealing varnish (42) is to suppress the penetration of the release varnish (43) into the paper layer (41) as the base material and to apply the release varnish stably, thereby stabilizing Can be obtained.

  Next, a lower layer (32) is created. First, a film layer (45) and an aluminum foil (47) are bonded together using an adhesive (46). For lamination, a dry lamination method or the like can be used. Next, two layers of an adhesive (48) and a sealant layer (49) are laminated on the other surface of the aluminum foil (47) by coextrusion to form an adhesive layer (50) with the container.

  Furthermore, the laminated body of the upper layer (31) prepared by the above laminating method, the film layer (45), the aluminum foil (47), and the adhesive layer (50) with the container is extruded using an extruder, and the polyethylene layer (44 ) To form a laminate (60) to be a base paper for the lid. The layer from the extruded polyethylene layer (44) to the adhesive layer (50) with the container is the lower layer (32).

A peeling start half cut (34) is provided from the sealant layer (49) side of the lower layer (32) of the laminate (60) serving as the base paper of the lid material, and the hot water cut hole (51) is similarly formed in the cut line (33). It is provided by applying.
The hot water cutting hole (51) is provided in accordance with a portion where the sealing varnish (42) and the peeling varnish (43) provided by pattern coating are not applied.
From the upper layer (31) side, an upper layer cut (35) for removing the upper layer (31) at the time of peeling is performed by a half cut.

  Thus, the layer structure of the hot water lid is completed, and an embodiment of the hot water lid (61) can be created by punching in accordance with the shape of the container mouth.

  When opening the hot water after opening, the peeling start tab (53) is picked up with a finger, and the upper layer (31) from the peeling start half cut (34) to the upper layer cut (35) is peeled off. Since the peeling varnish (43) is not applied to the portion corresponding to the hot water cut hole (51), the lower layer (32) of this portion is lifted up by the upper layer (31) to form a through hole. (51) is formed.

  Since the upper layer cut (35) is applied to the upper layer, the upper layer (31), the sealing varnish (42), the peeling varnish (43) and the hot water cut hole (51) lifted up at the same time as the peeling is completed. The lower layer (32) of the part can be separated and removed from the lower layer (32).

  As a result, the peeling start half cut (34) and the upper layer cut (35) of the lower layer (32) and the hot water cutting portion (52) surrounded by the outer periphery of the lid material are exposed, and the hot water cutting hole (51) which is a through hole is formed. ) Can be used as an opening for throwing away unnecessary hot water other than contents such as noodles.

  When the upper layer cut (35) is not provided, the lower layer is exposed only in the application part of the peeling varnish, exposed as the hot water cutting unit (52), and the upper layer (31) is left in the peeled state with the lower layer (32). It remains without separation, but does not affect the hot water draining itself.

  By configuring the packaging container using the hot water lid according to the present invention, it is possible to provide a packaging container that does not impair the appearance even when oil or liquid components ooze out into the hot water lid. The packaging container can be made into a packaging container by sealing the contents by heat sealing the sealant layer with the hot water lid according to the present invention aligned with the opening of the packaging container such as a cup.

<Example>
The layer configuration of the example is shown in FIG.
The laminated body (60) used as the base paper of a cover material was created using the following material.
Pattern ink (36): It printed on the film surface of an aluminum vapor deposition film (39) using nitrified cotton + urethane type ink.
Aluminum vapor-deposited film (39): A film in which a polyethylene terephthalate film (thickness: 12 μm) was used as the film layer (37) and the aluminum vapor-deposited layer (38) was formed by vacuum vapor deposition was used.
Adhesive (40): A polyester polyurethane system was used.
Paper layer (41): A piece of art paper (104.7 g) was used.
Sealing varnish (42): Nitrous cotton + urethane system was pattern coated.
Peeling varnish (43): A pattern was applied using a wax system.
Extruded polyethylene layer (44): An upper layer (31) and a lower layer (32) were laminated by extrusion using low density polyethylene.
Film layer (45): A polyethylene terephthalate film (12 μm thick) was used.
Aluminum foil layer (47): An aluminum foil (9 μm thick) was used.
EMMA (10 μm thickness) was used as the adhesive (48), and an adhesive layer (50) with the container was formed by coextrusion with the sealant layer (49) (10 μm thickness).

Subsequent to the production of the laminate (60) serving as the base paper for the lid material, the following processing was performed to produce a hot water lid (61).
Lid shape: A square shape (rectangle) is punched with a punching die.
Lid dimensions: 175mm x 157.5mm
Peel start tab (53): set to the opening tab diagonal.
Hot water cutting hole (51): circular with a diameter of 6 mm, 18 pieces. Further, a peeling varnish was not applied on the inner side of the outer periphery of the hot water cutting hole 1.5 mm or more, and pattern coating was performed.
Peeling start half-cut (34): Cut to the middle of the entire lower layer and the upper paper layer.
Cut line (33): Cut to the middle of the entire lower layer and the upper paper layer.
Upper layer cut (35): A pentagon surrounding the hot water cut portion (52).

<Comparative example>
An aluminum vapor deposition film layer was not provided in the upper layer of the lid material, and only this point was used to prepare a sample that was different from the example and used as a comparative example.

As the contents of the evaluation method, Dice mince with a high oil content was put in a container, and then the hot water lid (61) of Examples and Comparative Examples was heat-sealed at the container mouth and sealed. Furthermore, after storing for 1 day at 40 ° C. and 75% RH so that the contents were in contact with the half-cut portion provided in the hot water cut-off hole portion of the lid, the state of oil soaking was visually confirmed.

  Table 1 shows the evaluation results.

From the results in Table 1, oil stains are not observed in the examples, whereas in the comparative examples, oil stains that impair the container appearance are recognized, and the difference is remarkable.

From the evaluation results of the examples and comparative examples, in the container having a hot water lid which can be hot watered using the hot water hole after pouring hot water into the container according to the present invention, Provided with a hot water lid that can conceal the discoloration by a metal vapor deposition film such as aluminum provided in the upper layer of the hot water lid even when the color changes, and a packaging container using the same. I was able to verify that it was possible.

DESCRIPTION OF SYMBOLS 1 ... Hot water lid 2 ... Upper layer 3 ... Lower layer 4 ... Metal vapor deposition film 5 ... Release layer 6 ... Base material layer 7 ... Adhesive layer 8 to a container ... Hot water cutting hole 9 ... cut line 10 ... peeling start tab 11 ... peeling start line half cut 12 ... hot water cutting part 15 ... container outer side 16 ... contents side 17 ... upper layer Half cut 21 ... opening tab 22 ... peeling start tab 23 ... hot water cut hole 24 ... peeling part 25 ... peeling start line 26 ... peeling part 27 ... upper layer cut line 28 ··· Peeling end point 31 ··· Upper layer 32 ··· Lower layer 33 ··· Cut line 34 ··· Peeling start half cut 35 · · · Upper layer cut 36 ··· Pattern ink 37 ··· Film layer 38 ··· Aluminum vapor deposition layer 39 ... Aluminum vapor deposition film 40 ... Adhesive 41 ... Paper layer 42 ... Sealing varnish 43 ... Peeling varnish 44 ... Extruded polyethylene layer 45 ... Film layer 46 ... Adhesive 47 ... Aluminum foil 48 ... Adhesive 49 ... Sealant layer 50 ... Adhesive layer 51 with container ... Hot water cutting hole 52 ... Hot water cutting part 53 ... Detachment start tab 60 ... Laminate 61 serving as base paper for lid material ... Hot water cutting lid

Claims (6)

In the lid that forms a sealed container that is sealed in the opening of the container, the upper layer and the lower layer are made of a laminate that can be partially peeled through the peeling layer, and one or more hot waters can be obtained by partially peeling the upper layer. A lid with a cut-out,
The upper layer is composed of at least a concealing layer, and a part of the upper layer is partially peeled at the peeling portion to separate from the lower layer, whereby a hot water cut hole is formed by a cut line provided in the lower layer. Hot water lid.   The hot water lid according to claim 1, wherein the concealing layer is made of a metal vapor deposited film.   The hot water lid according to claim 1 or 2, wherein the cut line is formed by half-cutting.   The release layer between the upper layer and the lower layer has a release layer, and the release layer is applied with a pattern except for a hot water hole. A hot water lid according to any one of the above.   The lower surface of the upper layer and the upper surface of the lower layer are made of different plastic resins, and the lower surface of the upper layer and the upper surface of the lower layer are in direct contact with each other in the peeling portion. The hot water lid according to any one of 1 to 3.   A packaging container comprising the hot water lid according to any one of claims 1 to 5.