JP2013180813A - Hot water-draining lid member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water-draining lid member, capable of easily forming a hot water-draining hole with less possibility of lifting up a wrong tab when opening and without breakage or tearing of the lid member during opening, and further preventing an abnormal increase in adhesive force of a sealant due to the effect of heat.SOLUTION: A hot water-draining lid member is composed of two layers of an upper layer and a lower layer, in which the upper layer has a paper layer at the bottom, the paper layer having a release varnish layer on the lower surface, and the lower layer has a polyethylene resin layer at the top and a multilayer sealant layer including a low-temperature sealing sealant and an adhesive resin layer at the bottom. The lid member includes: an opening pull-tab for peeling the lid member from a flange part of a container body and a hot water-draining pull-tab for peeling the upper layer from the lower layer, which are provided adjacently; a lower layer half-cut line extending through the lower layer across a root part of the hot water-draining pull-tab, and a plurality of hot water-draining half-cuts of a closed shape extending through the lower layer for forming hot water-draining holes, which are formed at a position facing the two pull-tabs of the lid member.

Description

  The present invention relates to a container lid, and more particularly, to a lid used for sealing an opening of a cup-type container for storing instant noodles and the like, and more particularly to a lid suitable for use with a hot water draining operation.

  Instant noodles in the form of being eaten after performing a so-called hot water draining operation, in which hot water is poured into a container containing dry noodles to reconstitute the hot water and the remaining hot water is discarded after a certain period of time, are commercially available.

  As a container for storing these instant noodles, a heat insulating container made of styrene foam or paper is often used. In these containers, dry noodles are directly stored in a naked state together with a sachet storing seasonings and the like, and a lid is heated and sealed against the flange portion of the container body.

  When eating, the lid material is first partially peeled and opened, and after a seasoning sachet or the like is taken out, a certain amount of hot water is poured into the dried noodles and the lid material is resealed. Next, after a predetermined time has passed, a hot water draining operation is performed to discard excess hot water, and then seasoning is added and mixed well before eating.

  When designing a container with a hot water draining operation, it is necessary to give special consideration to safety so as not to cause burns due to the use of hot water. There is also a background that various ideas have been made for materials.

  As shown in FIG. 10, the lid material for instant noodle containers having a hot water discharge function described in Patent Document 1 does not delaminate the lid material (101) from the delamination area (A) that can be delaminated between layers. Divided into peeling areas (B), a drain outlet opening knob (103) and an opening knob (102) are provided in each area, and the peeling area is formed by a drain outlet opening forming half cut (104). A hot water cutting hole is disposed, and a peeling half cut (105) is provided at the boundary between the peeling region and the non-peeling region.

  As shown in this example, if the hot water tab (knob) and the opening tab are installed apart, there is a possibility that the hot water tab may be opened by mistake. There was a serious problem.

  The lid material with hot water outlet described in Patent Document 2 is also packaged with noodles such as raw noodles individually. After removing from the container and removing the exterior material, the noodles are poured into the container and poured with hot water. It is a lid material used for the type of container that loosens. In the case of this lid material, the lid material (201) is delaminated as shown in FIG. 11 because it is necessary to take a large opening for taking out individually wrapped noodles and loosening the transferred noodles. Instead, it is roughly divided into a part (A ′) to be peeled off and a part (B ′) that remains, and pull tabs (205) and (205A) are arranged respectively. In this example, since two tabs are installed side by side, the above-described mistake is unlikely to occur.

  Since the lid material with a hot water cut opening described in Patent Document 2 cannot use a delamination technique as a means for forming a hot water cut hole, a hot water cut forming half cut (211) is applied to the remaining portion (B ′). However, compared to the cover material described in Patent Document 1, it takes a lot of time to open the hot water cutting hole. There is.

JP 2000-109141 A JP 2003-246368 A

  Both the lid material for instant noodle containers having a hot water discharge function described in Patent Document 1 and the lid material with a hot water outlet described in Patent Document 2 both require a long half-cut line as a boundary between the two regions. However, it is not easy to perform half-cut processing uniformly over a long distance, and unevenness in the processing depth, which is often partially cut or not cut, occurs.

  If there is partial unevenness in the half-cut processing, the airtightness may be lost and the contents may be altered if cut too much. In addition, when it is not cut, it cannot be smoothly peeled off, and there arises a problem that the cover material is torn or broken in the middle.

  On the other hand, another problem is that when the hot water is poured, the adhesive force of the sealant that bonds the container main body and the lid material increases due to the effect of heat, and the lid material is difficult to peel off.

  The problem to be solved by the present invention is that there is a low possibility of mistaken tabs when opening, and the lid material can be easily formed without tearing or tearing during the opening. Further, the present invention proposes a lid for hot water drainage that does not cause an abnormal increase in the adhesive strength of the sealant due to the influence of heat.

  As a means for solving the above-mentioned problems, the invention described in claim 1 is a lid member that is used by heat-sealing the flange portion of the container body, and is composed of two layers, an upper layer and a lower layer. It has a paper layer on the lower surface, a release varnish layer is provided on the lower surface of the paper layer, and the lower layer has a polyethylene resin layer on the uppermost surface in contact with the upper release varnish layer, and a low-temperature sealing property on the lowermost surface. It has a multi-layer sealant layer that includes a sealant and an adhesive resin layer, and has two pull tabs: an opening pull tab for peeling the lid from the flange of the container body and a hot water drain pull tab for peeling the upper layer from the lower layer. Adjacent, having a lower half-cut line that passes through the lower layer across the root portion of the hot water pull tab, and for forming a hot water cut hole at a position facing the two pull tabs of the lid, Closed shape that penetrates the lower layer A hot water-cutting the cover material, characterized in that it comprises a hot water cutting hole half-cut number.

  The lid for hot water cutting according to the present invention has an upper layer and a lower layer laminated so as to be peelable, and when forming the hot water cutting hole, almost all upper layers except for the tab portion are peeled and removed. Thus, a long half-cut line is not required, and a very short half-cut line that only crosses the base portion of the pull tab is sufficient. Therefore, peeling trouble due to variations in the depth of the half-cut line hardly occurs.

  Moreover, since the two pull tabs are provided adjacent to each other, the possibility that the opening order is wrong is reduced. Furthermore, since the sealant layer is a multi-layer sealant layer including a low-temperature sealant sealant and an adhesive resin layer, the thickness of the low-temperature sealant sealant can be reduced, and the seal strength is unnecessary due to the heat of the hot water. It can prevent that it raises and peeling property worsens.

  The invention described in claim 2 is the hot water lid according to claim 1, further comprising a biaxially stretched film layer between the lower polyethylene resin layer and the multilayer sealant layer.

  Further, the invention according to claim 3 is the lid member for hot water drainage according to claim 1 or 2, characterized in that the surface of the two pull tabs of the lid member has a display indicating the order of peeling.

  Moreover, the invention according to claim 4 has an upper half cut line that crosses the base portion of the pull tab for opening and penetrates the upper layer. Cover material.

  Further, the invention according to claim 5 is characterized in that a part where the peeling varnish layer does not exist or the peeling varnish layer does not act is provided inside the hot-cut hole half cut of the closed shape. It is a lid material for hot water cutting of any one of 1-4.

  As described above, the lid for hot water drainage according to the present invention laminates the upper layer and the lower layer in a peelable manner, and when forming the hot water hole, almost all the upper layers except the tab portion are peeled and removed. It doesn't require a long half-cut line, and a very short half-cut line that only crosses the base of the pull tab is sufficient. For this reason, the process of forming a half-cut line is simple, the production efficiency is increased, and the variation in the depth of the half-cut line is reduced, so the upper layer is broken during peeling or half-cut line is broken. It is difficult to cause peeling troubles due to variations in depth.

  In addition, since the two pull tabs of the opening pull tab and the hot water pull pull tab are provided adjacent to each other, there is a low possibility that the consumer mistakes which one to open first. When the indication indicating the order of peeling is performed on the two pull tabs, the effect is further enhanced.

  In addition, since the sealant layer is a multilayer sealant layer that includes a low-temperature sealant sealant and an adhesive resin layer, the thickness of the low-temperature sealant sealant can be reduced, and the heat of the hot water unnecessarily increases the seal strength. And it can prevent that peelability worsens. For this reason, when the cover material is finally peeled and removed, it is possible to prevent a peeling trouble that the adhesive force is too strong and the cover material is torn or broken.

  When a biaxially stretched film layer is provided between the lower polyethylene resin layer and the multilayer sealant layer, the breaking strength of the lower layer is improved, and stable peelability can be secured.

  Moreover, when the upper half-cut line which penetrates the base part of the pull tab for opening and penetrates the upper layer is provided, peeling of the upper layer becomes smoother and the degree of freedom of the shape of the pull tab increases.

  When a portion where the peeling varnish layer does not exist or where the peeling varnish layer does not act is provided inside the hot water cut hole half cut, the adhesive strength between the upper layer and the lower layer of the hot water cut hole portion is increased. For this reason, when the upper layer is peeled and removed in order to form the hot water cutting hole, it is possible to prevent a trouble that the lower layer of the hot water hole part remains without being removed.

FIG. 1 is a schematic plan view showing an embodiment of a hot water lid member according to the present invention. FIG. 2 is a schematic plan view showing another embodiment of the lid for hot water cutting according to the present invention. FIG. 3 is a schematic plan view showing a state in which the upper layer of the lid member of FIG. FIG. 4 is a schematic cross-sectional view showing a layer structure in one embodiment of the lid for hot water cutting according to the present invention. FIG. 5 is a schematic cross-sectional view showing a layer structure in another embodiment of the lid for hot water cutting according to the present invention. FIG. 6 is a schematic cross-sectional view showing a layer configuration in another embodiment of the lid for hot water cutting according to the present invention. FIG. 7 is a schematic cross-sectional view showing a layer structure in another embodiment of the lid for hot water cutting according to the present invention. FIG. 8 is a schematic plan view showing another embodiment of the lid for hot water cutting according to the present invention. FIG. 9 is a schematic plan view showing another embodiment of the lid for hot water cutting according to the present invention. FIG. 10 is a schematic plan view of a conventional hot water lid member described in Patent Document 1. FIG. FIG. 11 is a schematic plan view of a conventional hot water lid member described in Patent Document 2. FIG.

Hereinafter, the hot water lid member according to the present invention will be described in detail with reference to the drawings.
1 and 2 are schematic plan views showing an embodiment of a hot water lid member (1) according to the present invention. FIG. 3 is a schematic plan view showing a state in which the upper layer (4) of the lid member of FIG. FIG. 4 is a schematic cross-sectional view showing the layer structure in one embodiment of the hot water lid material (1) according to the present invention.

The lid for hot water drainage (1) according to the present invention is a lid that is used by heat-sealing the flange portion (7) of the container body (6), and consists of two layers, an upper layer (4) and a lower layer (5). Consists of.
The upper layer (4) has a paper layer (14) in the lowermost layer, and a release varnish layer (15) is provided on the lower surface of the paper layer (14).

  The lower layer (5) has a polyethylene resin layer (16) on the uppermost surface in contact with the release varnish layer (15) of the upper layer (4), and a low temperature sealable sealant (21) and an adhesive resin layer (20) on the lowermost surface. A multilayer sealant layer (19) comprising

  Thus, since the peeling varnish layer (15) on the lower surface of the paper layer (14) of the upper layer (4) and the uppermost polyethylene resin layer (16) of the lower layer (5) are laminated, the upper layer (4 ) And the lower layer (5) are detachably laminated. The degree of peelability between the layers can be adjusted by selecting the materials of the release varnish layer (15) and the polyethylene resin layer (16).

  The lid for hot water drainage (1) according to the present invention further comprises an opening pull tab (2) for peeling the lid from the flange (7) of the container body (6), and an upper layer (4) as a lower layer (5). It is characterized in that it has two pull tabs adjacent to the hot water drain pull tab (3) for peeling off.

  If two pull tabs are provided adjacent to each other, the user will naturally be aware of which pull tab should be opened first, thus preventing accidents such as accidentally opening the hot water drain tab first. There is an effect to.

  In the embodiment shown in FIG. 1, alphabets indicating the opening order are displayed on the opening pull tab (2) and the hot water pull tab (3), respectively. In the embodiment shown in FIG. 2, numbers indicating the opening order are displayed on the opening pull tab (2) and the hot water pull tab (3), respectively. Thus, it becomes easier to understand by displaying the opening order on the two pull tabs. The display indicating the order of opening is not limited to alphabets or numbers, but may be a picture that implies the order.

  Next, the lid for hot water cutting (1) according to the present invention has a lower half cut line (5h) that passes through the lower layer (5) across the base portion of the pull tab (3) for hot water cutting.

  The lower layer half-cut line (5h) is required when the upper layer (4) is peeled and removed in order to reveal the hot water cutting hole (8). That is, when the hot water pull tab (3) is lifted, only the upper layer (4) is left with the lower layer (5) left on the flange portion (7) of the container body by the action of the lower layer half-cut line (5h) that crosses the base portion. Begins to peel from the lower layer. As the position of the lower half-cut line (5h), the outermost side closest to the outer periphery (7b) of the flange portion of the container body (6) is most preferable.

  In the embodiment shown in FIG. 2, in addition to the lower half-cut line (5h), an upper half-cut line (4h) that passes through the upper layer (4) across the base portion of the opening pull tab (2) is provided. Yes. When peeling of the upper layer is started from the hot water pull pull tab (3), if the upper half cut line (4h) is provided at the base of the adjacent pull pull tab (2), the upper layer of the pull pull tab portion is pulled to the pull tab. While leaving it on, peeling of only the upper layer proceeds smoothly.

  FIG. 3 is a schematic plan view showing a state in which the upper layer (4) of the lid member of FIG. 2 is peeled and removed to form a hot water cut hole (8). As described above, the lid member for hot water cutting (1) according to the present invention does not require a long half-cut line as in the prior art to reveal the hot water cutting hole (8), and only crosses the base of the pull tab. Since a short half-cut line is sufficient, various problems caused by variations in the depth of the conventional half-cut line can be solved.

  Depending on the shape of the opening pull tab (2), the upper half-cut line (4h) may not be required. That is, when the shape of the opening pull tab (2) is slightly raised from the outer periphery of the container as shown in FIG. 1, in such a case, it started from the hot water drain pull tab (3). This is because the peeling of the upper layer (4) naturally spreads to the surface of the opening pull tab (2) and the peeling proceeds.

  Next, the hot water lid member (1) according to the present invention is further closed through the lower layer (5) for forming the hot water hole (8) at a position facing the two pull tabs of the lid material. It is characterized by having a plurality of hot water cut hole half cuts (8h).

  In the embodiment shown in FIG. 1, the 18 small circular hot water cut hole half-cuts (8h) are provided with the opening pull tab (2) and the hot water pull pull tab (3) of the circular hot water cover (1). ).

  The shape of the lid for hot water cutting (1) is generally a circle as shown in FIG. 1 or a quadrangle with rounded corners as shown in FIG. 8, but is not particularly limited.

When using the lid for hot water drainage (1) according to the present invention, firstly, hold the pull tab (2) for opening and partially peel off the lid from the flange (7) of the container body (6). To do. After taking out the seasoning sachet in the container, a predetermined amount of hot water is poured into the dry noodles in the container, the lid is resealed, and the noodles are reconstituted. After a predetermined time has passed, the hot water cutting hole (8) appears when only the upper layer (4) is peeled and removed while holding the hot water cutting pull tab (2). After performing the hot water draining operation to drain excess hot water from the hot water hole, the cover material is peeled off again with the pull tab for opening again. Mix together the seasonings that have been taken out and cook, then serve.

  4-7 is the cross-sectional schematic diagram which showed the layer structure in each embodiment of the lid material (1) for hot water cutting concerning this invention. In the embodiment shown in FIG. 4, the upper layer (4) comprises a paper layer (14), a printing ink (13) printed on the surface of the paper layer, and a release varnish layer (15) formed on the lower surface of the paper layer. It has become.

  When the release varnish layer (15) is provided on the lower surface of the paper layer (14), it is preferable to apply a sealing varnish in advance in order to reduce the suction of the release varnish and to fully exhibit the release property. Alternatively, a sealing release varnish having the effects of both a sealing varnish and a peeling varnish may be applied.

  As the paper, single-sided art paper, double-sided art paper, coated paper, high-quality paper, synthetic paper, and the like can be used. As the peeling varnish, for example, a wax-based, polyamide-based, silicon-based, or acrylic resin-based one is preferably used. In order to prevent the release varnish from being impregnated into the paper, when a sealing varnish layer is provided between the peeling varnish layer and the paper layer, examples of the sealing varnish include nitrified cotton, urethane, and wax. Polyamide-based, silicon-based, and acrylic-based resins are preferably used.

  The interface between the peeling varnish layer (15) and the polyethylene resin layer (16) described below is the peeling position (H) where the upper layer (4) and the lower layer (5) peel.

  In the embodiment shown in FIG. 4, in the lower layer (5), a polyethylene resin layer (16), a biaxially stretched film layer (17), an adhesive layer (12b), and an aluminum foil (18) are laminated in order from the top. And a multilayer sealant layer (19) comprising an adhesive resin layer (20) and a low-temperature sealable sealant (21) on the lowermost surface.

  As the polyethylene resin layer (16), low density polyethylene resin (LDPE), medium density polyethylene resin (MDPE), high density polyethylene resin (HDPE), linear low density polyethylene resin (LLDPE), or the like can be used.

  As the biaxially stretched film layer (17), stretched polyethylene terephthalate (PET) resin film, stretched nylon film (ONY), stretched polypropylene resin film (OPP), stretched polyethylene resin film (OPE), etc. Film can be used.

  When the biaxially stretched film layer (17) is used for the lower layer (5), the tear strength of the lower layer is improved, and the lid material is less likely to be broken or torn off at the time of peeling. Moreover, by using an aluminum foil (18), the gas barrier property and light-shielding property of a lid | cover material improve, and the effect which prevents the deterioration of the content increases.

  By using the lowermost sealant layer as the multilayer sealant layer (19), the thickness of the low temperature sealant sealant (21) can be reduced. The low-temperature sealant sealant (21) is heated when pouring hot water into the container, so that the tackifier (tackifier) contained in the container gathers on the seal surface, the adhesive strength increases, the peelability becomes worse, and the lid Although the material has been a factor of breaking the material, by making it thinner, it is possible to prevent an increase in the adhesive strength and to lower the initial adhesive strength itself.

As the low temperature sealant (21), a resin material generally called LTS can be used. If the container is a polystyrene (PS) resin or a high impact polystyrene (HIPS) resin, an ethylene- (meth) acrylic acid- (meth) acrylic acid ester terpolymer or an ethylene-vinyl acetate copolymer Etc. can be used. If the container is a paper / PE resin, blend resins such as PE + polybutene-1, PE + ethylene-butene copolymer or propylene-butene copolymer, and PE + ethylene-propylene-butene terpolymer can be used. Can be used.

  As the adhesive resin layer (20), when an anchor coat layer is used, a polyethylene resin such as LDPE or LLDPE is used. When an anchor coat layer is not used, an ethylene-methacrylic acid copolymer (EMAA), ethylene- Ethylene-acid copolymers such as acrylic acid copolymer (EAA) can be used.

  If an example of the method of manufacturing the lid | cover material shown in FIG. 4 is shown, it will print on the surface of paper first and will apply | fill a sealing agent and peeling varnish on the back surface. Next, the biaxially stretched film and the aluminum foil are laminated together by an adhesive. Next, the peeling varnish surface of the previous paper and the biaxially stretched film surface of the laminate are bonded together via a polyethylene resin extruded by extrusion from a T die. Finally, an adhesive resin layer and a low-temperature sealable sealant are coextruded on the aluminum foil surface to form a cover material. The lid stock is half cut and punched into a predetermined shape to complete a hot water lid.

  The lower half cut line (5h) and the hot water cut hole half cut (8h) are preferably deep enough to penetrate the lower layer (5) and slightly bite into the upper layer (4) paper layer (14). The upper half-cut line (4h) may have a depth that penetrates the upper layer (4) and slightly bites into the polyethylene resin layer (16) of the lower layer (5).

  Half-cut processing methods include a mechanical method using a cutting blade and a method using a laser. Since the length of the half-cut line is short in the hot water lid member according to the present invention, stable half-cut processing can be performed by either method.

  In the embodiment shown in FIG. 5, the transparent film layer (11) is laminated on the printing ink (13) of the paper layer (14) via the adhesive layer (12a). This is the same as the embodiment shown. The presence of the transparent film layer (11) protects the printing ink, increases the strength of the upper layer (4), and stabilizes the peelability of the upper layer.

  In the embodiment shown in FIG. 6, the aluminum foil is omitted from the configuration shown in FIG. In the case where a high gas barrier property or light shielding property is not required for the lid member, the aluminum foil can be omitted in this way. In the configuration shown in FIG. 6, a polyethylene resin is used instead of the adhesive resin, and the biaxially stretched film and the multilayer sealant layer (19) are bonded together via an anchor agent (12c). If some mechanical equipment is used, the paper layer (14), the biaxially stretched film layer (17), and the multilayer sealant layer (19) can be laminated at a time.

  The embodiment shown in FIG. 7 is obtained by adding a transparent film layer (11) to the configuration shown in FIG.

  FIG. 9 is a schematic plan view showing another embodiment of the lid for hot water drainage (1) according to the present invention. In the embodiment shown in FIG. 9, there is no peeling varnish layer inside the hot water cut hole half cut (8h) having a closed shape, or a portion where the peeling varnish layer does not act, that is, a portion (9) where peeling does not occur. It is provided. By doing so, the peelability of the upper layer (4) and the lower layer (5) is lost and the adhesion between the upper layer and the lower layer is increased, so that the lower layer of the hot water hole portion adheres steadily to the upper layer. Therefore, the hot water cutting hole (8) is reliably formed.

  As a method of forming the non-peeling portion (9), the peeling varnish was not printed on the entire surface, but only this portion was removed so that no peeling varnish layer was present, and a solid state was provided. There is a method of printing an adhesive varnish or the like later on only this part of the peeling varnish surface. In any case, since it is necessary to align with the hot water half hole cut (8h), the size of the portion (9) that does not peel off is the size of the hot water hole so that there is no problem even if it is slightly shifted. It is preferable to make it slightly smaller than the size of the half cut.

DESCRIPTION OF SYMBOLS 1 ... Hot water draining lid material 2 ... Opening pull tab 3 ... Hot water draining pull tab 4 ... Upper layer 4h ... Upper layer half cut wire 5 ... Lower layer 5h ... Lower layer half cut wire 6 ... Container body 7 ... Flange part 7a ... Flange part inner periphery 7b ... Flange part outer periphery 8 ... Hot water cut hole 8h ... Hot water cut hole half cut 9 ... Non-peeling part 11 ... Transparent film layers 12a, 12b ... Adhesive layer 13 ... Printing ink 14 ... Paper layer 15 ... Peeling varnish layer H ... Peeling position 16 ... Polyethylene resin layer 17 ... -Biaxially stretched film layer 18 ... Aluminum foil 19 ... Multilayer sealant layer 20 ... Adhesive resin layer 21 ... Low temperature sealant sealant 101 ... Cover material 102 ... Opening knob 103 ..Hot outlet opening knob 104 ... Hot water outlet Half cut 105 for forming the mouth part ... Half cut for peeling 106 ... Half cut for peeling the knob part A ... Peeling area B, C ... Non-peeling area 201 ... Lid 204 ... Periphery Part 205, 205A ... Pull tab 209 ... Simple cutting line 211 ... Half cut 212 for hot water cut opening formation ... Front side half cut 213 ... Back side half cut A '... Part to be peeled off B '... remaining part C' ... part surrounded by half cut

Claims (5)

It is a lid material used by heat-sealing to the flange part of the container body, and consists of two layers, an upper layer and a lower layer,
The upper layer has a paper layer in the lowermost layer, and a release varnish layer is provided on the lower surface of the paper layer,
The lower layer has a polyethylene resin layer on the uppermost surface in contact with the release varnish layer on the upper layer, and a multilayer sealant layer including a low temperature sealant sealant and an adhesive resin layer on the lowermost surface,
There are two pull tabs adjacent to each other, an opening pull tab for peeling the lid from the flange portion of the container body and a hot water drain pull tab for peeling the upper layer from the lower layer,
It has a lower half-cut line that crosses the base of the pull tab for hot water cutting and penetrates the lower layer,
Furthermore, it has a plurality of half-cuts with a closed shape penetrating the lower layer for forming a hot water cut hole at a position facing two pull tabs of the cover material.   The hot water lid member according to claim 1, further comprising a biaxially stretched film layer between the lower polyethylene resin layer and the multilayer sealant layer.   The lid for hot water drainage according to claim 1 or 2, further comprising a display indicating an order of peeling on the surface of two pull tabs of the lid.   The lid member for hot water drainage according to any one of claims 1 to 3, further comprising an upper half-cut line that crosses a base portion of the opening pull tab and penetrates the upper layer.   5. The part according to claim 1, wherein a part where the peeling varnish layer does not exist or where the peeling varnish layer does not act is provided inside the closed shape half-cut hole cut. 6. Lid for hot water draining.