JP2001225856A - Paper lid for re-sealable flanged container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper lid for a flanged container which can be re-sealed, dispense with any facility for re-sealing, and realize the suspended display. SOLUTION: Notches 11 reaching substantially one half of the width of a flange 22 of the container in a sealed condition are provided at edges of substantially center portions of the sides facing each other of a lid 10, a flange holding piece 12 and a handle piece 13 are successively and continuously provided on the edge of one of the other sides facing each other via a first folding line a and a second folding line b, a third folding line c is provided so as to connect the two notches 11, 11 provided at the edges of the sides facing each other, a tray-like container is sealable up to substantially one half position thereof, the flange holding piece 12 is fixed to a back side of the flange 22 by ridge-folding the first folding line a, and valley-folding the second folding line b, and the handle piece is brought close to a peripheral wall 21 of the tray-like container to re-seal an opening part 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper lid used for a tray-like container with a flange for storing processed foods such as prepared foods, delicacies such as mentaiko, marine products, and the like.
In particular, the present invention relates to a paper lid used for a resealable flanged tray-like container that is effective for temporarily storing the remaining contents without consuming the contents at once.

[0002]

2. Description of the Related Art A paper tray-like container with a flange requires a lid for resealing in order to temporarily store the contents in a container without consuming the contents at once. Conventionally, these lids include a dome-shaped fitting lid (see FIG. 4 (a), which cannot be completely sealed), and a dome-shaped sealing lid (FIG. 4).
(B), a dedicated sealing machine is required, and the size of the seal becomes large during distribution.
(C), cannot be resealed), a combination of a dome-shaped fitting lid and a seal lid (see FIG. 4 (d), the members become complicated and cost increases), and a paper lid (FIG. 4 ( e), it is inconvenient to store the remaining items by opening the entire surface when opening), but each has the problems described in parentheses.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to a lid for a tray-like container with a flange which is used for consuming a processed food or the like in several divided portions. It is an object of the present invention to provide a paper lid for a container with a flange that is resealable, does not require facilities for reseal, and can be displayed in a hanging manner.

[0004]

Means for Solving the Problems A first invention of the present invention is:
A paper lid which covers an opening of a tray-shaped container having a flange formed on an upper edge of a peripheral wall and is sealed by heat sealing with the flange, wherein an edge of a substantially central portion of opposing sides of the lid is provided. Is provided with a notch that reaches approximately half the width of the flange portion of the container at the time of sealing, and the flange holding piece and the handle piece are the first bending line and the second piece at the edge of one of the other opposite sides, respectively. A third fold line provided in parallel with the two fold lines so as to connect two notches provided at the edges of the opposite sides, the tray-like container being sequentially connected via two fold lines; , The first folding line is mountain-folded, the second folding line is valley-folded, and the flange holding piece is fixed to the back side of the flange. Close to A resealable flanged container sheet steel lid, characterized by resealing the opening.

According to a second aspect of the present invention, in the first aspect, the third bending line connecting the two cuts is provided apart from the flange so as not to contact the edge of the flange of the container at the time of sealing. A resealable flanged paper container lid with a flange.

According to a third aspect of the present invention, in the first or second aspect, the size of the container paper lid is set to be slightly larger than that of the tray-shaped container. Container paper lid.

According to a fourth aspect of the present invention, in the first, second, or third aspect, an opening hole is provided in a substantially central portion of the handle piece, and the resealable flanged container paper is provided. The lid.

[0008] As described above, since the notch reaching the width of substantially half of the flange portion of the container at the time of sealing is provided at the edge of the substantially central portion of the opposite side of the lid, when the lid is opened, The force at the time stops once at the cut portion, and the adhesive portion remains. Because it is a paper lid, it has rigidity, and when the first folding line is mountain-folded and the second folding line is valley-folded,
The flange holding piece is fixed to the back side of the flange, the handle piece is brought close to the peripheral wall of the tray-shaped container, and the opening can be resealed.

By providing the third fold line at a distance from the flange portion of the container at the time of sealing, when the container and the lid are thermally bonded to each other by means such as a heat fusion method at the flange portion, the third fold line is formed at the heat bonding portion. Non-overlapping, complete sealing is possible.
In addition, by setting the size of the container paper lid to be one size larger than the tray-shaped container, even if the paper lid is misaligned when the container paper lid is thermocompression-bonded to the tray-shaped container. It is effective in achieving hermeticity. further,
Providing an opening in the substantially central portion of the handle piece enables hanging display at a hook-type sales stand.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments. The resealable flanged container paper lid of the present invention, for example, as shown in FIG. 1, when placed on the opening of the tray-shaped container at the edge of the substantially central portion of the opposite side,
Cut 1 reaching approximately half the width of the flange 22
1 and 11, and the flange holding piece 12 and the handle piece 13 are sequentially connected to the edge of one of the other opposite sides via the first bending line a and the second bending line b, respectively. In addition, a third folding line c is provided in parallel with the two folding lines a and b so as to connect the two cuts 11 and 11.

The notch 11 is formed by sealing the flange portion 22 of the container and the paper lid 10 by a method such as heat sealing and then peeling off the lid to take out the contents. Even when peeled off, the force at the time of opening stops,
The adhesive portion between the container and the lid remains. The shape of the cut may be a U-shape in addition to the V-shape shown.

After the container is opened, the flange holding piece 12
In order to reseal, the first folding line a is mountain-folded and the second folding line b is valley-folded, thereby playing the role of fixing it to the back side of the flange portion 22.

When opening the sealed container, the handle piece 13 is first pulled by hand to remove the heat-sealed portion, and is required to ensure reseal as in the case of the flange holding piece 12. Becomes

If an opening hole 14 is formed substantially at the center of the handle piece 13, the container can be hung, and for example, a hanging display can be developed (see FIG. 1).

As a material used for the lid, a paperboard such as a coated ball or a coated manila can be preferably used. A composite paper in which a thermoplastic resin such as a polyethylene resin is applied to one or both sides of the paperboard or bonded together may be used. Alternatively, a heat seal varnish or the like may be applied to impart thermal adhesiveness to the paperboard. By using paperboard, rigidity is exhibited in the lid, and the shape can be maintained.

The container with a flange used together with the paper lid of the present invention is, for example, a tray-shaped container 20 having a flange 22 formed on the upper edge of a peripheral wall 21 as shown in FIG. The shape of the container is preferably square. It is important that the lid is set to a size slightly larger than the container flange because the positioning of the lid at the time of thermocompression bonding becomes easier when achieving sealing performance.

The material of the flanged container is preferably the same as that of the paper lid, but may be formed by molding a thermoplastic resin film. However, the container and the paper lid need to be heat-fusible.

The sealing and resealing of the paper lid and the flanged container of the present invention are performed as follows. That is, first, after filling the contents with the container 20 with the flange, the paper lid 10 is put on the opening 23 of the container with the flange, and the flange portion 22 is heat-sealed to be completely sealed. These operations can be easily performed using a general filling and sealing machine (see FIG. 1).

When the consumer holds the handle piece 13 and opens it after purchase, the notches 11 and 11 provided in the substantially central portion are provided.
As a result, since the heat-sealed portion 25 is interrupted, only the flange portion on the side having the handle 13 from the third bending line c stops the unsealing in a state where the heat-sealed portion is peeled off. In addition, the third bending line c is located at a position 3 away from the vertex of the V-shaped or U-shaped cut 11.
It is desirable that the processing be finished on the inside by about mm. This is beneficial for completely sealing the lid.

When a part of the contents is taken out and the rest is stored after opening, the first bending line a is folded in a mountain and the second bending line b is folded in a valley, so that the flange holding piece 12 is folded.
Is fixed to the back side of the flange portion 22, and the handle piece 13 can be kept close to the peripheral wall 21 in a resealed state (see FIG. 3).

The first folding line a is folded in a mountain and the second folding line b is folded in a valley by bending the flange holding piece 12 and the handle piece 13 along the flange portion 22 of the tray 20 with flange. Achieved and does not require special effort.

At the store, it is of course possible to place it horizontally on a normal display shelf or showcase, etc., so that it can be stacked step by step. Hanging display is also possible by passing through.

[0023]

As described above, the resealable flanged paper-made lid of the present invention can be resealed with only one type of lid, so that the conventional filling and sealing machine can be used as it is and the cost can be reduced. Can be achieved. Since the force applied at the time of unsealing stops at the cut, an opening of about one half can be reliably achieved, and the resealing effect can be achieved. Further, if the main material including the flanged container is made of paper, recycling is easy, and the commission for re-commercialization under the Containers and Packaging Recycling Law is lower than that of the thermoplastic resin lid.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view showing an embodiment in which a paper lid of the present invention is placed on an opening of a container with a flange and is thermally bonded to the container.

FIG. 2 is a perspective explanatory view showing one embodiment of a container with a flange used for a paper lid according to the present invention.

FIG. 3 is a cross-sectional explanatory view showing a state in which the paper lid of the present invention is put on a flanged container, thermally bonded, opened, and then resealed.

FIGS. 4A to 4E are schematic explanatory views showing a combination of a conventional container with a flange and a lid.

[Explanation of symbols]

 10 {paper cover 11} notch 12} flange holder 13 * handle 14 * opening hole 20 * tray-shaped container 21 * peripheral wall 22 * flange 23 * opening 25 * heat Fused part a ‥‥ first bending line b ‥‥ second bending line c ‥‥ third bending line

Continued on the front page F-term (reference) 3E067 AB01 BA10A BB01A BB14A BC06A BC07A EA06 EA29 EA32 EB11 EB17 EB29 EE15 FA01 FC01 GD10 3E084 AA05 AA14 AA24 AA34 AB10 BA01 CA03 CC07 DA10 DB09 DB11 FA04 GB09 LA09

Claims (4)

[Claims] 1. A paper lid which covers an opening of a tray-shaped container having a flange formed on an upper edge of a peripheral wall, and is sealed by heat sealing with the flange, wherein a substantially opposite side of the lid is opposed. At the edge of the central part, a notch is provided which reaches approximately half the width of the flange part of the container at the time of sealing, and at the edge of one of the other opposite sides, a flange holding piece and a handle piece are respectively provided. A third fold line is provided in series with the first fold line and the second fold line, and is connected in parallel with the two fold lines so as to connect two cuts provided at the edges of the opposite sides. The container can be opened to approximately half the position of the tray-like container, the first fold line is mountain-folded, the second fold line is valley-folded, the flange holding piece is fixed to the back side of the flange, and the handle piece is Close to the peripheral wall of the tray-shaped container A resealable flanged container paper lid, characterized by resealing the container opening. 2. The container according to claim 1, wherein the third fold line connecting the two cuts is provided away from the flange so as not to contact the edge of the flange of the container during sealing. Container lid with resealable flange. 3. The container paper lid is set to be slightly larger than the tray-shaped container.
Or a resealable flanged container paper lid according to 2. 4. A container-made lid with a resealable flange according to claim 1, wherein an opening hole is provided at a substantially central portion of said handle piece.