JP2000229674A - Lid with hot water discharging hole for instant food container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To made a container sealed up tightly with a lid and to ensure safety at the time of discharging hot water while making formation of hot water discharge holes easy by a method wherein a separating part is provided at the surface sheet forming a lid for the container which hermetically packages food such as chow mein or the like, and a tab separating half-cut part is arranged on a composite sheet on which the surface sheet is laminated. SOLUTION: A container which hermetically packages instant food is opened by partially separating a composite sheet from a flange part of the container with a lid-separating tab 13 provided at the adherent area L2 side of a lid A pulled. After hot water is poured into the container through the opening, the container is covered again with the lid-separating tab 13 tucked in to the flange part 21. Furthermore, the surface sheet of the composite sheet is severed successively at a notch 15, a pull-tab separating half-cut part 14 and a severance part 9 with a surface sheet separating pull-tab 12 provided at an easily separable area L1 of the lid A pulled, and the composite sheet is separated at half-cut parts 7 for forming hot water discharging holes, and thereby a plurality of hot water discharging holes are formed. Then, the hot water in the container is poured out through the hot water discharging holes with the container tilted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid for a container used for hermetic packaging of instant foods such as yakisoba, and more particularly to a hot water hole for discharging hot water injected for softening instant foods in a dry state. The present invention relates to a lid with a hot water hole of an instant food container provided with the same.

[0002]

2. Description of the Related Art Conventionally, cup containers for instant foods, such as fried noodles, spaghetti, white rice, and red rice, which need to be hot-dried after eating for a predetermined time, are generally made of polystyrene resin particles. Foamed resin particles (beads) containing a volatile foaming agent such as butane, pentane, etc. in a foamed bead cup container body formed by foaming by heating or the like. Those covered with a plastic resin cover material having the following are widely used.

[0003]

However, many of the conventional plastic resin lids are simply covered on the cup container body made of foam beads as described above. Most of them are engaged by grooves provided on the outer peripheral flange and having engaging projections, and there is a problem that there is no sealing property.

[0004] In addition, the conventional plastic resin lid material is provided with a plurality of nail portions for forming a hot water hole by cutting at opposite positions, and the hot water holes are formed by raising the nail portions. It is formed. However, since the claw portion can be formed only in a part of the flange, a large number of hot water holes cannot be formed, so that much time is required for hot water drainage, and the hot water hole is blocked by the contents. In such a case, there is a problem that it takes more time to drain the hot water. In addition, when the claws are erected to form a hot water hole, there is a risk that foreign matter may enter the cup container, such as breakage of the claws.

Further, since most of the conventional plastic resin lids are sheet molded products, they are bulky when transported or stored, and also appear bulky when placed on a cup container body for an instant food. The problem of poor appearance has arisen.

Further, since the conventional plastic resin lid member and the cup container are engaged only by a groove having an engaging projection provided on a flange portion on the outer periphery of the lid member, the heat of the hot water is reduced. Deformation due to the weight of the contents and the hot water may cause disengagement when the hot water is drained, and the contents may pop out, and at that time the hand may be burned, etc. It had to be drained with the lid firmly held down.

[0007] Further, since most of the conventional plastic resin lids are sheet molded products, there has been a possibility that disposal may become a problem in connection with recent environmental problems.

It is an object of the present invention to provide a lid for a container for an instant food that requires pouring, such as fried noodles or spaghetti, which needs to be drained after a predetermined period of time. Lid for instant food containers with easy-to-use, safety and quickness in draining hot water, ease of forming hot water holes (easy opening), and easy disposal, especially instant noodle containers with hot water draining function It is to provide a lid for use.

[0009]

The invention according to claim 1 of the present invention is directed to an easy-peeling area formed by an easy-peeling layer formed by applying an easy-peeling agent to a predetermined shape region of a composite sheet and a topsheet. And the other adhesive areas are laminated and adhered to each other, a pull-tab for peeling the top sheet is provided in the easy-peeling area, and a hot water hole is provided in one or more places of the composite sheet in the easy-peeling area. In the lid with a hot water hole of the instant food container in which the forming half cut is formed, from one end of the base of the top sheet peeling pull tab in the easy peeling area, along the boundary line of the adhesive area adjacent to the easy peeling area. In the vicinity of the top sheet peeling pull tab, a cut-off portion is provided in the top sheet, and the composite is formed at a position intersecting the cut portion with the outer peripheral end opposite to the cut portion as a starting point. A cut-off portion provided near the knob for opening the hot-water hole, or a notch formed in the vicinity of the cut-off portion. It is a lid with a hole.

According to a second aspect of the present invention, in the first aspect of the present invention, the separation portion is formed by providing a plurality of cut lines formed by providing a large number of separation cuts. It is a lid with a hot water hole for instant food containers.

The invention according to claim 3 of the present invention is the invention according to claim 1, wherein the notch is formed from the outer peripheral end of the lid to the half-cut for releasing the knob portion. It is a lid with a hole.

[0012]

The instant food lid of the present invention has a hot water hole.
Since it is formed of a laminate mainly composed of paper, it does not become bulky during transportation or storage, and it can be sealed by heat sealing to the cup container body. It is possible to provide an instant noodle container lid material that is compact, has a good appearance, and has a hot-water draining function, without the possibility of the content popping out due to the weight of the content at the time of the content, and without having to hold the lid material. .

Further, in the lid with a hot water hole of the ready-to-eat food of the present invention, a half cut for opening the hot water hole is formed on the back side of the composite sheet to provide an easy-peeling area and an adhesive area. A large number of holes can be formed, and all the hot water holes are not blocked by the contents, so that quick hot water can be drained. In addition, the cut pieces broken by the half-cut for opening the hot water hole form an adhesive area, and are peeled and opened while being bonded to the backside of the top sheet, so that foreign substances such as cut pieces are mixed into the cup container body. It is possible to provide a lid for an instant noodle container having a function of draining hot water, which is not likely to occur.

Further, since the lid with the hot water hole of the ready-to-eat food of the present invention is formed of a laminate mainly made of paper or the like, a hot water function corresponding to recent environmental problems in terms of disposal is also possible. Can be provided.

In the instant food lid with hot water hole according to the present invention, a large number of inclined shapes are provided which extend outward from each other along the boundary between the easy peeling area and the adjoining area.
By providing a plurality of rows of cut lines including peel cuts from the top sheet on the outer surface side to the adhesive layer, the manufacturing process is less complicated than in the past, and the peel stability is good. A lid material for an instant noodle container can be provided.

Further, in the lid with a hot water hole of the instant food according to the present invention, the edge of the pull-tab for peeling off the top sheet located in the easy peeling area may be along a boundary line of the adhesive area adjacent to the easy peeling area. A cut-off portion is provided on the topsheet, and in the vicinity of the topsheet-peeling pull tab, the composite sheet is provided at a position intersecting the cutout with the outer peripheral end opposite to the cutout as a starting point. By providing a half-cut for releasing the knob portion by half-cutting and forming a notch in or near the cut-off portion provided near the knob for opening the hot water hole, the top sheet is peeled by grasping the pull-tab for releasing the top sheet. Sometimes, the topsheet in the easy-peeling area is cut off from the topsheet in the adhesive area in the order of the notch, the half-cut for peeling the pull tab portion, and the cut-off section, and the topsheet in the easy-peeling area It is peeled off from the composite sheet.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments. FIG. 1A is a plan view of a lid with a hot water hole of an instant food container according to an embodiment of the present invention.
FIG. 1B is a partially enlarged view of a cut line formed by a peeling cut in the lid, and FIG. 1C is a rear view of the lid. FIG. 2 is a side view of an instant food container with a lid with hot water for instant food. FIG. 3A is a side sectional view of an embodiment of a lid with a hot water hole of the instant food container of the present invention, and FIG. 3B is a plan view thereof. FIG. 4 is an enlarged sectional side view illustrating a state where the lid with a hot water hole of the instant food container of the present invention is opened. FIG. 5 is a perspective view showing a use state.

In the lid with a hot water hole according to the present invention, the composite sheet 1 having a circular shape (polygonal shape such as a quadrangle) and the surface sheet 11 are
A pattern-shaped easy-release layer formed by applying an easy-release agent in a mesh pattern (or a halftone pattern, or a checkered pattern or a grain pattern) over a predetermined shape area from the outer periphery of the lid. 5 easy peeling area L
₁ are laminated and bonded to each other are partitioned by the adhesive area L ₂ is a non-formation region of the easy peeling layer 5.

Further, as shown in FIG.
The easy peeling area L₁And bonding area L_TwoBorder with
A cutout 9 is formed along the line. Also, easy peeling area
Area L ₁From the topsheet 11 to the outer periphery of a part of the lid
The top sheet 11 extended so as to protrude in the direction
A pull tab 12 for peeling off the top sheet used when
Have been. Further, the bonding area L_TwoAt least compound in
A part of the lid extends from the sheet
A pull-tab 1 for peeling off the lid used when peeling off the lid
3 are provided.

[0020] The separating unit 9, as shown in FIG. 1 (A), (B) , the easily peeling region L from one end of the base portion of the peelable region L topsheet peeling pull tab 12 which is extended to _{1 1}
Cut line 9 formed by providing a large number of peeling cuts 9a having a shape inclined so as to spread outwardly on the outer surface side of the topsheet 11 along the boundary line with the adhering region L2 adjacent thereto.
It is formed by providing a plurality of rows of b. The peeling cut 9a is cut from the front side of the topsheet 11 by a mold blade. As shown in FIGS. 1 (C) and 3 (B), a cut-out portion 9 is formed at the base of the top sheet-pulling pull-tab 12 by a half-cut 14 for pull-tab portion peeling by half-cutting from the top sheet 11 side. It is formed in a shape that traverses. The half-cut 14 for peeling the pull tab portion is cut from the back side of the composite sheet 1 (the side opposite to the top sheet 11) by a mold blade.

Further, a notch 15 is provided in the cutout 9 at the base of the pull-tab 12 for peeling the top sheet. The notch 15 is provided from the outer periphery of the lid to the half-cut 14 for peeling the pull-tab portion. Have been. The notch 15 is either located overlaps the separating unit 9, or provided slightly according to the bonding region L ₂ position. The notch 15
If the mold blade provided with the half cut 14 for separating the pull tab portion is provided and processed at the same time, the positions of the two can be prevented from shifting. By providing a notch 15 at this position, the top sheet 1
When peeling the 1, topsheet 11 of the peelable region L ₁
Is a notch 15, a half cut 14 for peeling a pull tab portion,
Gradually detached from the adhesive region L ₂ in the disconnection unit 9 and sequentially.

The cut 9a for separating the cut line 9b, which forms the cut portion 9, will be specifically described. Separation cut 9a
When described with reference to FIG. 1 (B), a pair of cutout lines 9b are provided continuously in a pair of shapes that extend obliquely outward by about 20 degrees with respect to the flow direction, and one row of cut lines 9b is formed. In practice, however, the above-described peeling cut line 9b is provided in two or more rows. Here, the peeling cut 9a for forming the cut line 9b is provided in the above-mentioned shape and in a symmetrical shape, so that it is easy to cut, there is no gap, and the cut end of the base material does not remain in the cut portion. It can be peeled off neatly.
The score line 9b may be provided in two or more rows,
It is preferable to provide three or more rows and five rows or less in terms of releasability and stability.

Half-cuts 7 for forming a hot water hole having an inner diameter R are formed at one or more positions of the composite sheet ₁ in the easy peeling area L1. The half cut 7 is cut from the back side of the composite sheet 1 (the side opposite to the top sheet 11) by a mold blade.

The easy-peeling area L ₁ is formed by applying an easy-peeling agent to the inner surface of the composite sheet 1 and the topsheet 11 in a mesh pattern (or a halftone pattern, a checkered pattern, or a grain pattern). It is formed by the formed easily peelable layer 5.

For example, as shown in FIG. 3 (B), it is easy to include the inside of the half cut 7 for forming a hot water hole except for the adhesive portion 6 in the half cut area on the inner surface of the composite sheet 1 and the top sheet 11. the peeled area L _1, for example, dot diameter 0.5 to 1.5 mm, screen ruling is 0.5 to 2.0 lines / m
m, an easily peelable layer 5 having a halftone dot pattern, or a mesh hole diameter of 0.
3 to 0.5 mm, the number of mesh lines is 0.5 to 2.0 lines / mm
The easily peelable layer 5 in a mesh pattern is formed, and the easily peelable layer 5 in the pattern is formed with an area ratio of 60 to 90%.

The pattern-shaped easy-peeling layer 5 is formed by cutting a half-cut 7 for forming a hot water hole from a side of the composite sheet 1 with a mold blade on a lid material in which the composite sheet 1 and the top sheet 11 are laminated and bonded. At the time, the composite sheet 1 is formed along the periphery of the half-cut 7 for forming a hot-water hole.
Dot diameter and net that adhere to the inner surface of the adhesive between the surface sheet 11 and the inner surface of the adhesive sheet while maintaining an easy peeling property such that unintended irregular peeling due to the cutting pressure or impact of the die blade by the easy peeling layer 5 does not occur. A pattern in which an easy-peeling layer 5 such as a dot pattern, a mesh pattern, a checkerboard pattern, or a grain pattern having a dotted line number, a mesh hole diameter and a mesh line number, or an area ratio is formed. It is necessary to set this pattern so that the easy-peeling layer 5 has an adhesive property that does not cause unexpected irregular peeling while maintaining an appropriate easy-peeling function. In order to maintain the releasability, a dot pattern, a mesh pattern, a checkered pattern, and a grain pattern as described above are appropriate.

The inside diameter R of the half-hole 7 for forming a hot water hole in the present invention is such that the hot water can be smoothly discharged and the instant food loosened by the wet is not discharged together with the hot water into the container. There is no particular limitation as long as the hole diameter is such that it stops, but for example, it may be about 5 mm to 7 mm, and preferably 5.5 mm ≦ R ≦ 6.5 mm.

A half cut having an inner diameter r of 2R / 3 or less is provided on the inner surface of the composite sheet 1 and the top sheet 11 in the area of the half cut 7 for forming a hot water hole having an inner diameter R. An in-region bonding portion 6 is formed. That is, the inner diameter r of the adhesive portion in the half-cut area (the area without the easily peelable layer) and the inner diameter R of the half-cut for forming the hot water hole formed so as to include the adhesive part in the half-cut area having the inner diameter r The relationship is, for example, 1R / 3 ≦ r <2R
/ 3.

The inner diameter r of the bonding portion 6 in the half-cut area
Is set in accordance with the size of the inner diameter R, but the printing hole forming half is formed by a printing method such as a gravure printing method, an offset printing method, and a relief printing method using an easy release agent. When patterning the easily peelable layer 5 so as to bite into the inner diameter R of the cut 7, in order to relax strict register accuracy, the inner diameter R may be as small as possible.

For example, the inner diameter r of the bonding portion 6 in the half-cut area is defined as r = 2R / 3 with respect to the inner diameter R of the half-cut 7.
The inner diameter R is 5.5 mm ≦ R ≦ 6.5 mm
Is within the range, the inner diameter r is correspondingly set to 2.0 mm.
It is desirable to set ≦ r ≦ 4.3 mm.

The lid A of the instant food container having such a structure is
As shown in FIG. 2, the instant food is sealed and packaged by sealing and packaging the container B by adhesively sealing and sealing the container B at the upper end portion of the container B (made of plastic or paper) containing the instant food. It becomes a food container.

The vessel was sealed packaged instant food as described above B is pulled up to cover stripping pull tab 13 of the composite sheet 1 in the outer periphery of the bonding region L ₂ of the lid A shown in FIG. 3 (B) The container B is opened by partially peeling off the composite sheet 1 on the side of the adhesive region L2 from the flange portion 21 of the container, and hot water is poured into the container B from the opening, and then the pull-off tab 13 for peeling off the lid at the opening is provided. Is again folded over the outside of the flange portion 21 and left for a few minutes to soften the instant food inside.

Thereafter, the easy peeling area of the lid A shown in FIG.
Area L₁For peeling the top sheet of the top sheet 11 on the outer periphery of
Pull up the pull tab 12 to pull up the surface of the easy peeling area L1.
The sheet 11 has a notch 15 and a half tab for pull tab separation.
The bonding area L in the order of_TwoSurface sheet 1
1 and separated from the easy-to-peel area L as shown in FIG. ₁
Of the top sheet 11 from the composite sheet 1
A hard hole for forming a hot water hole adhered to the topsheet 11;
Cut off the composite sheet 1 in the region 7
After forming several hot water holes 8 having an inner diameter R in the
The container B is tilted to discharge the hot water inside from the hot water hole 8
can do.

The layer structure and the material structure of the lid with a hot water hole of the instant food container of the present invention are not particularly limited in the present invention. For example, as an example, the side of the lid in FIG. Some are shown in cross-sectional views.

As the composite sheet 1, a polyethylene resin layer 2 by extrusion lamination, an aluminum foil layer 3, and a polyethylene resin layer 4 by sand lamination
It consists of

As the top sheet 11, a single-sided art paper (for example, 127.9 g / m ^{2 in} thickness) is used, and the surface is appropriately printed or the like to form a top sheet for the lid. Alternatively, a synthetic resin film or a composite film of paper and a synthetic resin film may be used.

As the easy release agent for forming the easy release layer 5, urethane resin, nitrified cotton (cellulose) resin,
An easy release agent such as a blend resin of nitrified cotton (cellulose) and a urethane resin can be used.

[0038]

As described above, according to the operation and the embodiment, in the lid with a hot water hole of the instant food container according to the present invention, the easy peeling is performed from one end of the base of the pull tab for peeling the top sheet in the easy peeling area. Along the boundary of the adhesive area adjacent to the area, a cutout portion is provided in the topsheet, and in the vicinity of the topsheet-peeling pull tab, the cutoff is performed starting from an outer peripheral end opposite to the cutout portion. At the position intersecting the part, the composite sheet is provided with a half-cut for knob portion peeling by half-cutting, and a notch is formed at or near the cut-off portion provided near the knob for opening the hot water hole, thereby forming a top sheet. When the top sheet is peeled by holding the pull tab for peeling, the top sheet in the easy peeling area is separated from the top sheet in the bonding area in the order of notch, half-cut for peeling the pull tab part, and cutoff part. Periodically, the surface sheet of the peelable region is peeled from the composite sheet, the surface sheet is not separated by a portion having no half-cut and the separating section, it may refer disconnect peeling.

Further, a half-cut for peeling is provided in which a plurality of cut lines are formed by providing a large number of cut lines formed by providing a large number of peel cuts having a shape in which the cut portions are inclined outwardly. Since the peeling cuts are inclined so as to spread outward from each other, it breaks while moving between each of a plurality of adjacent cut lines, so that a part of the surface sheet laminated releasably on the base material is surely And can easily be peeled off along the peeling half cut, and the drain hole formed in the base material can be easily opened along the drain hole opening forming half cut. It is possible to provide a lid material for an instant noodle container having a sanitary hot water draining function without foreign matter such as cut pieces entering the main body.

Further, since the lid with a hot water hole for instant noodle containers of the present invention is configured as described above, it does not become bulky during transportation or storage, and is disposed as a combustible material together with general waste. Thus, it is possible to provide a lid for an instant noodle container having a hot water draining function excellent in production efficiency.

In addition, in the lid with a hot water hole for instant noodle containers of the present invention, the lid configured as described above is sealed to the cup container body by heat sealing or the like, so that the instant food container is sealed. When the hot water is drained after the ready-to-eat food, which has the sealing property and the excellent content preservability, and the content is made edible, all the hot water holes formed by the content are formed. It is possible to provide a lid for an instant noodle container that can be safely and quickly drained without being clogged and has a simple draining function.

[Brief description of the drawings]

FIG. 1A is a plan view of a lid with a hot water hole of an instant food container of the present invention, FIG. 1B is a partially enlarged view of a cut line formed by peeling cuts, and FIG. 1C is a rear view of the lid.

FIG. 2 is a side view of the instant food container of the instant food container according to the present invention, which is covered with a lid having a hot water hole.

FIG. 3A is a side sectional view of an embodiment of a lid with a hot water hole of an instant food container of the present invention, and FIG. 3B is a plan view thereof.

FIG. 4 is an enlarged sectional side view illustrating a state in which the lid with a hot water hole of the instant food container of the present invention is opened.

FIG. 5 is a perspective view showing a use state of a lid with a hot water hole of the instant food container of the present invention.

[Explanation of symbols]

A: Cover with hot water hole B: Container L ₁ : Easy peeling area L ₂
... Adhesion area R ... Inner diameter of half cut area for forming hot water hole r ... Inner diameter of adhesive area in half cut area 1 ... Composite sheet 5 ... Easy peeling layer in mesh form 6 ... Adhesive area in half cut area 7 ... Formation of hot water hole Half cut 8 ... Hot water hole 9 ... Separation part 11 ... Top sheet 12 ... Pull tab for peeling top sheet 13 ... Pull tab for lid peeling

Claims (3)

[Claims] 1. A composite sheet and a top sheet are laminated and adhered to each other by being separated by an easy-peeling area formed by applying an easy-peeling agent to a predetermined shape area and an other adhesive area. A hot-water hole of an instant food container, wherein a pull-tab for peeling a top sheet is provided in the easy-peeling area, and a half-cut for forming a hot water hole is formed in one or more places of the composite sheet in the easy-peeling area. In the lid, along the boundary of the adhesive region adjacent to the easy peeling region from one end of the base of the pull-tab for the surface sheet peeling in the easy peeling region, a cutout portion is provided in the topsheet,
In the vicinity of the top sheet peeling pull tab, starting from the outer peripheral end opposite to the separation portion, at a position intersecting the separation portion, the composite sheet is provided with a grip portion peeling half cut by half cutting in the composite sheet, A cut-off portion provided near the knob for opening a hot-water hole or a notch formed in the vicinity thereof. 2. The lid with a hot water hole of an instant food container according to claim 1, wherein said cut-off portion is formed by providing a plurality of cut lines formed by providing a large number of cuts for peeling. 3. The lid with a hot water hole of an instant food container according to claim 1, wherein the notch is formed from the outer peripheral end of the lid to a half cut for releasing the knob.