JP4916278B2 - Lid with hot water hole - Google Patents

Lid with hot water hole Download PDF

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JP4916278B2
JP4916278B2 JP2006297933A JP2006297933A JP4916278B2 JP 4916278 B2 JP4916278 B2 JP 4916278B2 JP 2006297933 A JP2006297933 A JP 2006297933A JP 2006297933 A JP2006297933 A JP 2006297933A JP 4916278 B2 JP4916278 B2 JP 4916278B2
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cut
hot water
lid
peeling start
inner lid
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JP2008105743A (en
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登 阪田
新 山田
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Dai Nippon Printing Co Ltd
Nissin Foods Holdings Co Ltd
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Dai Nippon Printing Co Ltd
Nissin Foods Holdings Co Ltd
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Description

本発明は、カップ入り生タイプ麺やインスタント焼きそば等の容器に使用する湯切り孔付き蓋材に関する。   The present invention relates to a lid material with a hot water cut hole used for containers such as cup-type raw noodles and instant fried noodles.

上記湯切り孔付き蓋材の一例として、特許文献１に開示されたものがある。図１を参照して、特許文献１に開示された湯切り孔付き蓋材を説明する。   An example of the lid member with a hot water cut hole is disclosed in Patent Document 1. With reference to FIG. 1, the cover material with a hot water hole disclosed by patent document 1 is demonstrated.

ここで、図１（ａ）は、特許文献１の湯切り孔付き蓋材の裏面を示している。湯切り孔付き蓋材はシート状で、内蓋と外蓋の２層構造を有していて、図１（ａ）に示した蓋材裏面側に内蓋が位置する。この湯切り孔付き蓋材は、内蓋の外周がカップ状の容器本体のフランジ部に熱接着されて、当該容器本体を封止する。   Here, Fig.1 (a) has shown the back surface of the cover material with a hot water cut hole of patent document 1. FIG. The lid member with a hot water cut hole is in a sheet form and has a two-layer structure of an inner lid and an outer lid, and the inner lid is located on the back side of the lid member shown in FIG. In the lid member with a hot water cut hole, the outer periphery of the inner lid is thermally bonded to the flange portion of the cup-shaped container body to seal the container body.

蓋材裏面側の内蓋には、図１（ａ）に示したように、剥離開始切目、湯切り孔形成切目及び開口形成切目が設けられている。容器本体に熱溶着された湯切り孔付き蓋材のタブを摘んで引き剥がすと、図１（ｂ）に示すように、内蓋の一部のみが容器本体側に残る。
容器本体側に残った内蓋部分には、湯切り孔が存在し、これを利用して、麺を湯がいた後の湯切りを行う。 As shown in FIG. 1A, the inner lid on the back side of the lid material is provided with a peeling start cut, a hot water cut hole forming cut, and an opening forming cut. When the tab of the lid member with a hot water cut hole thermally welded to the container body is picked and peeled off, only a part of the inner lid remains on the container body side as shown in FIG.
The inner lid portion remaining on the container body side has a hot water cutting hole, and by using this, the hot water is cut after the noodles are hot.

容器本体側に残すべき内蓋部分に対応する積層領域においては、内蓋と外蓋が離型層を介して積層されていて、この部分の接着強度を相対的に弱めている（すなわち、内蓋と外蓋とが剥離し易くしている）。こうすることで、タブを摘んで蓋材（外蓋）を容器本体から引き剥がすときに当該内蓋部分が容器本体側に残り易くしている。
一方、湯切り孔形成切目の内部領域においては、離型層の接着強度を相対的に強めている（すなわち、内蓋と外蓋とが剥離し難くしている）。したがって、湯切り孔形成切目内に位置する円形の内蓋部分は外蓋とともに引き剥がされて、その結果、容器本体側に残った内蓋部分には、湯切り孔が形成される（図１（ｂ））。 In the laminated region corresponding to the inner lid portion to be left on the container body side, the inner lid and the outer lid are laminated via the release layer, and the adhesive strength of this portion is relatively weakened (that is, the inner lid portion). The lid and the outer lid are easy to peel off). By doing so, when the tab is picked and the lid member (outer lid) is peeled off from the container body, the inner lid part is easily left on the container body side.
On the other hand, the adhesive strength of the release layer is relatively increased in the inner region of the hot water cut hole forming cut (that is, the inner lid and the outer lid are difficult to peel off). Accordingly, the circular inner lid portion located in the hot water cut hole forming cut is peeled off together with the outer lid, and as a result, a hot water cut hole is formed in the inner lid portion remaining on the container body side (FIG. 1). (B)).

しかしながら、前記特許文献１の蓋材では、内蓋の剥離開始切目と容器本体のフランジ部の外端との位置が多少ずれることによって、外蓋と内蓋が分離せず、湯切り孔の形成に不都合が生じる場合がある。かかる不都合を解消するための蓋材として、特許文献２に以下のように構成された蓋材が開示されている。図２及び図３を参照して、特許文献２に開示された湯切り孔付き蓋材を説明する。   However, in the lid material of Patent Document 1, the outer lid and the inner lid are not separated because the position of the peeling start cut of the inner lid and the outer end of the flange portion of the container main body is slightly shifted, and a hot water cut hole is formed. Inconvenience may occur. As a cover material for solving such inconvenience, Patent Document 2 discloses a cover material configured as follows. With reference to FIG.2 and FIG.3, the lid | cover material with a hot water hole disclosed by patent document 2 is demonstrated.

ここで、図２（ａ）は、特許文献２の湯切り孔付き蓋材の裏面を示している。図２（ｂ）〜（ｄ）は、容器本体に取り付けられた蓋材を表面側から観察した場合のタブ付近を拡大した透視図であり、蓋材の表面側に表れない２本の剥離開始切目とフランジ部との位置関係を示すため、２本の剥離開始切目を一点鎖線で表し、前記フランジ部を破線で表している。   Here, Fig.2 (a) has shown the back surface of the cover material with a hot water cut hole of patent document 2. FIG. FIGS. 2B to 2D are perspective views in which the vicinity of the tab when the lid attached to the container body is observed from the surface side are enlarged, and two peeling starts that do not appear on the surface side of the lid In order to show the positional relationship between the cut line and the flange part, two peeling start cuts are represented by a one-dot chain line, and the flange part is represented by a broken line.

特許文献２の蓋材では、蓋材と容器本体の溶着位置が多少ずれても内蓋の一部が外蓋と確実に分離するように、外側剥離開始切目、内側剥離開始切目の２本の切目が裏面側の内蓋に設けられている（図２（ａ））。これにより、内側剥離開始切目が容器本体のフランジ部の外端と接した状態（図２（ｂ））又は容器本体のフランジ部の外端よりも外側にずれた状態（図２（ｃ））で、内蓋の外周が容器本体に熱溶着されている場合には、図３（ａ）に示したように、内蓋は、内側剥離開始切目から剥離して、その一部が容器本体側に残る。一方、内側剥離開始切目が容器本体のフランジ部の外端よりも容器内側に位置した状態（図２（ｄ））で、内蓋の外周が容器本体に熱溶着されている場合には、図３（ｂ）に示したように、内蓋は、外側剥離開始切目から剥離して、その一部が容器本体側に残る。
特開２００３−２２１０５８号公報 特開２００３−２７６７５３号公報 In the lid material of Patent Document 2, the outer peeling start cut and the inner peeling start cut are separated so that a part of the inner lid is reliably separated from the outer lid even if the welding position of the lid and the container body is slightly shifted. A cut is provided in the inner lid on the back side (FIG. 2 (a)). Thereby, the state where the inner peeling start cut is in contact with the outer end of the flange portion of the container body (FIG. 2 (b)) or the state shifted to the outside from the outer end of the flange portion of the container body (FIG. 2 (c)). In the case where the outer periphery of the inner lid is thermally welded to the container body, as shown in FIG. 3A, the inner lid is peeled from the inner peeling start cut, and a part of the inner lid side Remain in. On the other hand, when the inner peeling start cut is positioned inside the container with respect to the outer end of the flange portion of the container body (FIG. 2D), the outer periphery of the inner lid is thermally welded to the container body. As shown in 3 (b), the inner lid peels off from the outer peeling start cut, and a part thereof remains on the container body side.
JP 2003-221058 A JP 2003-276753 A

しかしながら、上述のいずれの湯切り孔付き蓋材においても、湯切り孔が位置ずれ（この場合の位置ずれとは、蓋材を容器本体に溶着させる時の位置ずれと、蓋材の製造時において湯切り孔をカッターで形成するときの位置ずれを含む）によって、容器本体フランジ部に重なって、該湯切り孔を形成する内蓋部分がフランジ部に溶着されてしまわないように、湯切り孔の位置を容器本体フランジ部内縁の位置からある程度余裕を持って容器中心側に形成する必要があった。このため、湯切り孔は容器本体フランジ部に接して形成されず、従って、一定量の湯を前記湯切り孔で排出できず、湯が容器本体に残ってしまうという問題点がある。   However, in any of the above-mentioned lid materials with hot water cut holes, the hot water cut holes are misaligned (in this case, the misalignment is the misalignment when the lid material is welded to the container body, and the lid material is manufactured. In order to prevent the inner lid portion forming the hot water cut hole from being welded to the flange portion by overlapping the container main body flange portion due to misalignment when forming the hot water cut hole with a cutter) It was necessary to form this position on the container center side with some margin from the position of the inner edge of the container body flange. For this reason, the hot water cutting hole is not formed in contact with the container main body flange portion, and therefore, a certain amount of hot water cannot be discharged through the hot water cutting hole, so that hot water remains in the container main body.

本発明は、かかる問題点を解消するため、内蓋の一部が外蓋と剥離して容器本体に残り、湯切り孔が形成されるように構成された蓋材において、さらに残湯量の低減をも図ることができる湯切り孔付き蓋材を提供することを課題とする。   In order to solve such problems, the present invention further reduces the amount of remaining hot water in a lid material configured such that a part of the inner lid is peeled off from the outer lid and remains in the container body to form a hot water cutting hole. It is an object of the present invention to provide a lid member with a hot water cut hole that can also achieve the above.

本発明は、前記課題を解決するための手段として創案されたものであって、以下のように構成される。
本発明の蓋材は、シート状で内蓋（３）と外蓋（２）の２層構造を有し、内蓋の外周を容器本体の開口周囲のフランジ部に接着することで当該容器本体を封止するとともに、当該フランジ部よりも外方に突出するタブ（１１）を備える。
内蓋には、タブ（１１）の基部近傍（容器本体を封止した時のフランジ外縁との境界付近）に配置される剥離開始切目（３２）と、該剥離開始切目より内蓋中心側に位置して注ぎ口を規定する開口形成切目（３３）と、剥離開始切目と開口形成切目との間に位置して湯切り孔を規定する湯切り孔形成切目（３４）とともに、残湯量低減孔を規定する残湯量低減孔形成切目（３５）を形成する。
湯切り孔形成切目の内側部分（湯切り孔形成切目に囲まれた部分で湯切り孔となる部分）を除く、剥離開始切目と開口形成切目と内蓋の外周縁とで区画された領域内における内蓋と外蓋の接着強度は、前記領域外における内蓋と外蓋の接着強度よりも弱く設定されて、上記タブを摘んで当該蓋材を引き剥がしたときに、前記領域内にある内蓋の一部のみが容器本体に残るように構成されている。
前記残湯量低減孔形成切目（３５）は、剥離開始切目（３２）と一体化されて、剥離開始切目の一部が上記タブ（１１）と反対側の方向に突出して、容器本体側に残る前記領域内の内蓋の一部に形成されている。
内蓋には、剥離開始切目より外側に位置する外側剥離開始切目（３１）と、残湯量低減孔が形成される領域の基端と接して残湯量低減孔を延長形成する延長形成領域（３５ａ）とが形成されている。
延長形成領域は、内蓋の外周縁に向かって延在して外側剥離開始切目を分断している。
The present invention has been developed as a means for solving the above-described problems, and is configured as follows.
The lid material of the present invention is in the form of a sheet and has a two-layer structure of an inner lid (3) and an outer lid (2), and the outer periphery of the inner lid is bonded to a flange portion around the opening of the container body. And a tab (11) protruding outward from the flange portion.
The inner lid has a peeling start cut (32) disposed near the base of the tab (11) (near the boundary with the outer edge of the flange when the container body is sealed), and on the inner lid center side from the peeling start cut. Residual hot water amount reduction hole together with an opening forming cut (33) that defines a pouring spout and a hot water cut forming cut (34) that is positioned between the peeling start cut and the opening forming cut and defines a hot water cutting hole The remaining hot water amount reducing hole forming cut (35) is defined.
Within the area defined by the separation start cut, the opening forming cut, and the outer edge of the inner lid, excluding the inner part of the cut hole forming cut (the part surrounded by the cut hole forming cut). The adhesive strength between the inner lid and the outer lid is set to be weaker than the adhesive strength between the inner lid and the outer lid outside the area, and is within the area when the tab is picked and the lid material is peeled off. Only a part of the inner lid is configured to remain in the container body.
The remaining hot water amount reducing hole forming cut (35) is integrated with the peeling start cut (32), and a part of the peeling start cut protrudes in the direction opposite to the tab (11) and remains on the container body side. A part of the inner lid in the region is formed.
In the inner lid, an outer peeling start cut (31) positioned outside the peeling start cut and an extension formation region (35a) extending and forming the remaining hot water reduction hole in contact with the base end of the region in which the remaining hot water reduction hole is formed. ) And are formed.
The extension forming region extends toward the outer peripheral edge of the inner lid and divides the outer peeling start cut.

上記のように構成された本発明の湯切り孔付き蓋材においては、タブを摘んで引き剥がすと、残湯量低減孔が、容器本体側に残った内蓋の一部に形成される。前記残湯量低減孔は容器本体のフランジ部の内縁端から内方に突出するため、この残湯量低減孔を利用すれば、湯切り孔では排出不可能な湯を排出することができ、残湯量の低減を図ることが可能となる。   In the lid member with a hot water cut hole of the present invention configured as described above, when the tab is picked and peeled off, a remaining hot water amount reducing hole is formed in a part of the inner lid remaining on the container body side. Since the remaining hot water amount reducing hole protrudes inward from the inner edge of the flange portion of the container body, if this remaining hot water amount reducing hole is used, hot water that cannot be discharged by the hot water cutting hole can be discharged. Can be reduced.

本発明の第１実施形態を添付の図面にしたがって説明する。なお、以下の実施形態では、上述の本発明における「剥離開始切目」を、外側剥離開始切目と区別するため、特に「内側剥離開始切目」と称して説明する。   A first embodiment of the present invention will be described with reference to the accompanying drawings. In the following embodiments, the “peeling start cut” in the present invention described above will be specifically referred to as “inner peeling start cut” in order to distinguish it from the outer peeling start cut.

図４は、本発明の第１実施形態に係るシート状の湯切り孔付き蓋材１を示している。蓋材１は、大きく分けて外蓋２と内蓋３を有していて、図４（ａ）の表面側には外蓋２が位置し、図４（ｂ）の裏面側には内蓋３が位置している。
なお、実際には、外蓋２及び内蓋３は、それぞれがさらに多数の積層構成を有する。蓋材１は、内蓋３の表面に設けた熱接着層又は他の接着剤等を用いて、後に説明するように、カップ状の容器本体５側に固定される。 FIG. 4 shows the sheet-like lid member 1 with a hot water cut hole according to the first embodiment of the present invention. The lid material 1 is roughly divided into an outer lid 2 and an inner lid 3. The outer lid 2 is located on the front surface side of FIG. 4 (a), and the inner lid is on the rear surface side of FIG. 4 (b). 3 is located.
Actually, each of the outer lid 2 and the inner lid 3 has a larger number of laminated structures. The lid member 1 is fixed to the cup-shaped container body 5 side using a thermal adhesive layer or other adhesive provided on the surface of the inner lid 3 as will be described later.

図５に示したように、蓋材１は、外蓋２の面を上側とし、内蓋３の外周を容器本体５の開口周囲に形成されたフランジ部５１に接着することで、容器本体５を封止する。蓋材１は、容器本体５側に熱溶着された状態においてフランジ部５１よりも外方に突出する摘み用タブ１１を備える。消費者が前記タブ１１を摘んで蓋材１を容器本体５から引き剥がして除去すると、図６（ａ）〜（ｃ）に示した後述の内側剥離開始切目３２とフランジ部５１の位置関係によって、内蓋３の剥離が、後述の外側剥離開始切目３１、内側剥離開始切目３２のいずれか一方から開始して、内蓋３の一部が容器本体５側に残る。ここで、図６（ａ）〜（ｃ）は、容器本体に取り付けられた本発明の第１実施形態に係る蓋材１を表面側から透視した場合のタブ１１付近を拡大したものであり、蓋材１の表面側に表れない２本の剥離開始切目３１、３２とフランジ部５１との位置関係を示すため、２本の剥離開始切目３１、３２を一点鎖線で表し、前記フランジ部５１を破線で表している。   As shown in FIG. 5, the lid 1 has the container body 5 by bonding the outer periphery of the inner lid 3 to a flange portion 51 formed around the opening of the container body 5 with the surface of the outer lid 2 facing upward. Is sealed. The lid member 1 includes a tab 11 for picking that protrudes outward from the flange portion 51 in a state where it is thermally welded to the container body 5 side. When the consumer picks the tab 11 and peels and removes the lid 1 from the container body 5, depending on the positional relationship between the later-described inner peeling start cut 32 and the flange portion 51 shown in FIGS. 6 (a) to 6 (c). The inner lid 3 is peeled from one of an outer peeling start cut 31 and an inner peeling start cut 32 described later, and a part of the inner lid 3 remains on the container body 5 side. Here, FIGS. 6A to 6C are enlarged views of the vicinity of the tab 11 when the lid member 1 according to the first embodiment of the present invention attached to the container body is seen through from the surface side. In order to show the positional relationship between the two peeling start cuts 31 and 32 and the flange portion 51 that do not appear on the surface side of the lid member 1, the two peeling start cuts 31 and 32 are represented by a one-dot chain line, and the flange portion 51 is It is represented by a broken line.

具体的には、内側剥離開始切目３２がフランジ部５１の外端と接した状態（図６（ａ））又はフランジ部５１の外端よりも外側にずれた状態（図６（ｂ））で、内蓋３の外周がフランジ部５１に接着されている場合には、蓋材１を容器本体５から引き剥がすと、内側剥離開始切目３２及び後述の残湯量低減孔形成切目３５と開口形成切目３３との間に位置する内蓋３の一部が、図７（ａ）に示したように、湯切り孔形成切目３４の内側部分を除いて、外蓋２から剥離して容器本体５側に残る。一方、内側剥離開始切目３２がフランジ部５１の外端よりも内側にずれた状態（図６（ｃ））で、内蓋３の外周がフランジ部５１に接着されている場合には、蓋材１を容器本体５から引き剥がすと、外側剥離開始切目３１と開口形成切目３３との間に位置する内蓋３の一部が、図７（ｂ）に示したように、湯切り孔形成切目３４の内側部分を除いて、外蓋２から剥離して容器本体５側に残る。   Specifically, in a state where the inner peeling start cut 32 is in contact with the outer end of the flange portion 51 (FIG. 6A) or a state shifted to the outside from the outer end of the flange portion 51 (FIG. 6B). When the outer periphery of the inner lid 3 is bonded to the flange portion 51, when the lid member 1 is peeled off from the container body 5, the inner peeling start cut 32 and the remaining hot water amount reducing hole forming cut 35 and the opening forming cut described later are formed. As shown in FIG. 7A, a part of the inner lid 3 located between the outer lid 2 and the inner lid 3 is peeled off from the outer lid 2 except for the inner portion of the hot water hole forming cut 34. Remain in. On the other hand, when the inner peeling start cut 32 is displaced inward from the outer end of the flange portion 51 (FIG. 6C), the outer periphery of the inner lid 3 is bonded to the flange portion 51. When 1 is peeled from the container main body 5, a part of the inner lid 3 located between the outer peeling start cut 31 and the opening forming cut 33 becomes a hot water cut hole forming cut as shown in FIG. Except for the inner part of 34, it peels from the outer lid 2 and remains on the container body 5 side.

容器本体５に麺が収容されている場合には、前記のように内蓋３の一部が容器本体５側に残った状態で、注ぎ口３６にお湯を注いで麺を湯がく。
容器本体５側に残った内蓋３の一部には、湯切り孔３７が形成されている。すなわち、麺の湯がきが終了した場合には、この湯切り孔３７を利用して湯切りを行う。その後、最終的には、容器本体５側に残った内蓋３の一部も剥がし取って廃棄し、湯戻しした麺を喫食する。 When noodles are stored in the container body 5, the noodles are poured by pouring hot water into the spout 36 with a part of the inner lid 3 remaining on the container body 5 side as described above.
A hot water cutting hole 37 is formed in a part of the inner lid 3 remaining on the container body 5 side. That is, when the noodles have been squeezed, the hot water cutting holes 37 are used to perform hot water cutting. After that, finally, a part of the inner lid 3 remaining on the container body 5 side is also peeled off and discarded, and the noodles reheated with hot water are eaten.

図４に示したように、内蓋３には、外側剥離開始切目３１、内側剥離開始切目３２、開口形成切目３３、湯切り孔形成切目３４及び残湯量低減孔形成切目３５が形成されている。各切目は内蓋３の全厚を貫通して形成された切目である。
外側剥離開始切目３１及び内側剥離開始切目３２は、内蓋３のタブ１１の基部近傍（容器本体を封止した時のフランジ外縁との境界付近）に形成されている。
開口形成切目３３は、内側剥離開始切目３２より内蓋の中心側に位置して注ぎ口３６の形状を規定する。
また、湯切り孔形成切目３４は、内側剥離開始切目３２と開口形成切目３３との間に位置し、それぞれ円形状に構成されている。容器本体５側に残った内蓋３の一部に形成される湯切り孔３７（図７）の形状は、湯切り孔形成切目３４によって規定される。 As shown in FIG. 4, the inner lid 3 is formed with an outer peeling start cut 31, an inner peeling start cut 32, an opening forming cut 33, a hot water cut hole forming cut 34, and a remaining hot water amount reducing hole forming cut 35. . Each cut is a cut formed through the entire thickness of the inner lid 3.
The outer peeling start cut 31 and the inner peeling start cut 32 are formed near the base of the tab 11 of the inner lid 3 (near the boundary with the outer edge of the flange when the container body is sealed).
The opening forming cut 33 is located closer to the center of the inner lid than the inner peeling start cut 32 and defines the shape of the spout 36.
Moreover, the hot water cut hole forming cut 34 is located between the inner peeling start cut 32 and the opening forming cut 33, and each has a circular shape. The shape of the hot water cut hole 37 (FIG. 7) formed in a part of the inner lid 3 remaining on the container body 5 side is defined by the hot water cut hole forming cut 34.

上述のように、蓋材１は外蓋２と内蓋３を積層して構成しているが、外側剥離開始切目３１と開口形成切目３３との間に位置する内蓋３の一部は、湯切り孔形成孔切目３４の内側部分（湯切り孔形成切目に囲まれた部分で湯切り孔となる部分）を除いて、例えば、この積層部分にのみ離型層を介在させる等して外蓋２と内蓋３との接着強度を弱めている。内蓋３の剥離は、上述したように、内側剥離開始形成切目３２とフランジ部５１の外端との位置関係によって剥離開始位置が異なり、いずれか一方の剥離開始切目３１、３２と開口形成切目３３との間に位置する内蓋３の一部が、外蓋２から剥離して容器本体５側に残る。   As described above, the lid member 1 is configured by laminating the outer lid 2 and the inner lid 3, but a part of the inner lid 3 positioned between the outer peeling start cut 31 and the opening forming cut 33 is Except for the inner part of the hot water hole forming hole cut 34 (the part surrounded by the hot water hole forming cut that becomes the hot water hole), for example, the release layer is interposed only in this laminated part. The adhesive strength between the lid 2 and the inner lid 3 is weakened. As described above, the peeling of the inner lid 3 is different in the peeling start position depending on the positional relationship between the inner peeling start forming cut 32 and the outer end of the flange portion 51, and either one of the peeling starting cuts 31, 32 and the opening forming cut. A part of the inner lid 3 located between the outer lid 2 and the inner lid 3 is peeled off from the outer lid 2 and remains on the container body 5 side.

内蓋３のタブ１１の基部近傍には、残湯量低減孔形成切目３５が形成されている。この残湯量低減孔形成切目３５は、残湯量低減孔３８を規定する。残湯量低減孔形成切目３５は、内側剥離開始切目３２の中央に一体化されて形成されている。具体的には、内側剥離開始切目３２と残湯量低減孔形成切目３５の両方の切目が合わせて一本の切目を形成している。残湯量低減孔形成切目３５は、略Ｕ字状に構成され、蓋材１を引き剥がしたときに容器本体５側に残る内蓋３の一部に、タブ１１とは反対側の方向に突出するように（食い込むように）形成されている。なお、残湯量低減孔形成切目３５は、内側剥離開始切目３２に一体化されて形成され、タブ１１とは反対側の方向に突出するように形成されているものであれば、内側剥離開始切目３２の中央に位置する必要はなく、内側剥離開始切目３２の端部に位置するものであってもよい。また、残湯量低減孔形成切目３５は、複数形成されていてもよいし、その形状は略Ｕ字状でなくてもよい。   In the vicinity of the base portion of the tab 11 of the inner lid 3, a remaining hot water amount reducing hole forming cut 35 is formed. The remaining hot water amount reducing hole forming cut 35 defines a remaining hot water amount reducing hole 38. The remaining hot water amount reducing hole forming cut 35 is formed integrally with the center of the inner peeling start cut 32. Specifically, both the inner peeling start cut 32 and the remaining hot water amount reducing hole forming cut 35 are combined to form a single cut. The remaining hot water amount reducing hole forming cut 35 is formed in a substantially U shape, and protrudes in a direction opposite to the tab 11 to a part of the inner lid 3 remaining on the container body 5 side when the lid member 1 is peeled off. It is formed so as to do. If the remaining hot water amount reducing hole forming cut 35 is formed integrally with the inner peeling start cut 32 and is formed so as to protrude in the direction opposite to the tab 11, the inner peeling start cut. It is not necessary to be located at the center of 32, and it may be located at the end of the inner peeling start cut 32. Moreover, the plurality of remaining hot water amount reducing hole forming cuts 35 may be formed, and the shape may not be substantially U-shaped.

内側剥離開始切目３２がフランジ部５１の外端と接した状態（図６（ａ））又はフランジ部５１の外端よりも外側にずれた状態（図６（ｂ））で、内蓋３の外周がフランジ部５１に接着されている場合には、蓋材１を容器本体５から引き剥がすと、容器本体５側に残った内蓋３の一部に、残湯量低減孔３８が形成される（図７（ａ））。容器本体５側に内蓋３の一部が残った状態で湯切り作業を行うと、湯切り孔３７では排出できない湯が、残湯量低減孔３８を介して排出されるため、容器本体５に残る湯の量を低減することができる。   In a state where the inner peeling start cut 32 is in contact with the outer end of the flange portion 51 (FIG. 6A) or a state shifted outward from the outer end of the flange portion 51 (FIG. 6B), When the outer periphery is bonded to the flange portion 51, when the lid member 1 is peeled off from the container body 5, a remaining hot water amount reduction hole 38 is formed in a part of the inner lid 3 remaining on the container body 5 side. (FIG. 7A). When the hot water draining operation is performed with a part of the inner lid 3 remaining on the container body 5 side, hot water that cannot be discharged through the hot water hole 37 is discharged through the remaining hot water amount reducing hole 38. The amount of remaining hot water can be reduced.

一方、内側剥離開始切目３２がフランジ部５１の外端よりも内側にずれた状態（図６（ｃ））で、内蓋３の外周がフランジ部５１に接着されている場合には、蓋材１を容器本体５から引き剥がすと、容器本体５側に残った内蓋３の一部に、残湯量低減孔３８と、この残湯量低減孔３８を閉じるフラップ状部３９とが形成される（図７（ｂ））。容器本体５側に内蓋３の一部が残った状態で湯切り作業を行うと、図８に示したように、湯切り孔３７では排出できない湯が、フラップ状部３９を外側に押し出して残湯量低減孔３８を開いた状態にし、残湯量低減孔３８を介して排出されるため、容器本体５に残る湯の量を低減することができる。   On the other hand, when the inner peeling start cut 32 is displaced inward from the outer end of the flange portion 51 (FIG. 6C), the outer periphery of the inner lid 3 is bonded to the flange portion 51. When 1 is peeled off from the container main body 5, a remaining hot water amount reducing hole 38 and a flap-like portion 39 for closing the remaining hot water amount reducing hole 38 are formed in a part of the inner lid 3 remaining on the container main body 5 side ( FIG. 7B). When the hot water cutting operation is performed with a part of the inner lid 3 remaining on the container body 5 side, the hot water that cannot be discharged through the hot water hole 37 pushes the flap-shaped portion 39 outward as shown in FIG. Since the remaining hot water amount reducing hole 38 is opened and discharged through the remaining hot water amount reducing hole 38, the amount of hot water remaining in the container body 5 can be reduced.

本発明に係る蓋材１と特許文献２の蓋材とを使用して湯切り作業を行った場合の残湯量を比較するため、本発明及び特許文献２の蓋材が溶着された即席食品容器を多数製造し、その中から無作為に３つ抽出して、麺が収容されていない容器本体５にそれぞれ湯を入れて湯切り作業を行ったところ、以下の表１に示すような結果が得られた。
なお、容器は開口径（内径）が１７０ｍｍのスチロール製の丼型容器で、蓋材の湯切り孔の径は６ｍｍ、蓋材の中心点から蓋材の外縁側に列設する湯切り孔の中心点までの距離は７８ｍｍである。 In order to compare the amount of remaining hot water when the lid material 1 according to the present invention and the lid material of Patent Document 2 are used, the instant food container in which the lid material of the present invention and Patent Document 2 is welded A large number of products were extracted, three of them were randomly extracted from the container, and hot water was poured into the container body 5 that did not contain noodles. The results shown in Table 1 below were obtained. Obtained.
The container is a styrene type container having an opening diameter (inner diameter) of 170 mm. The diameter of the hot water cutting hole of the lid material is 6 mm, and the hot water cutting holes lined up from the center point of the lid material to the outer edge side of the lid material. The distance to the center point is 78 mm.

Figure 0004916278
Figure 0004916278

表１の結果に示されたそれぞれの容器の残湯量とその平均残湯量からも明らかなように、本発明に係る蓋材１を使用すれば、上記特許文献２の蓋材よりも残湯量を低減することが可能である。   As is clear from the amount of remaining hot water in each container and the average amount of remaining hot water shown in the results of Table 1, if the lid member 1 according to the present invention is used, the amount of remaining hot water is more than that of the above-mentioned lid material of Patent Document 2. It is possible to reduce.

上記の第１実施形態では、剥離開始切目として、内側剥離開始切目３２と外側剥離開始切目３１の内外２本の切目を有する蓋材１を例示したが、剥離開始切目（内側剥離開始切目３２）がフランジ部５１の外端と接した状態（図６（ａ））又はフランジ部５１の外端よりも外側にずれた状態（図６（ｂ））で、容器本体５に蓋材１を確実に接着できる場合、換言すれば、内側剥離開始切目３２がフランジ部５１の外端よりも内側にずれた状態（図６（ｃ））を引き起こすことなく、容器本体５に蓋材１を接着できる場合には、外側剥離開始切目３１を内蓋３に必ずしも形成する必要はない。   In the first embodiment, the cover material 1 having two inner and outer cuts, that is, the inner peel start cut 32 and the outer peel start cut 31, is illustrated as the peel start cut. However, the peel start cut (the inner peel start cut 32). The lid 1 is securely attached to the container body 5 in a state in which is in contact with the outer end of the flange portion 51 (FIG. 6A) or a state shifted to the outside of the outer end of the flange portion 51 (FIG. 6B). In other words, in other words, the lid member 1 can be bonded to the container body 5 without causing the inner peeling start cut 32 to be displaced inward from the outer end of the flange portion 51 (FIG. 6C). In some cases, the outer peeling start cut 31 is not necessarily formed in the inner lid 3.

一方、以下のような場合には、上記のような第１実施形態に係る湯切り孔付き蓋材１では、残湯量を確実に低減することができないという問題がある。すなわち、容器本体５に残る内蓋３の一部が外側剥離開始切目３１から蓋材１より剥離して、内蓋３の一部に残湯量低減孔３８とフラップ状部３９とが形成されると、湯切り作業の際に、フラップ状部３９が外側に押し出されないことがあり、この場合、残湯量低減孔３８を介して湯を排出することができない。   On the other hand, in the following cases, there is a problem that the amount of remaining hot water cannot be reliably reduced in the lid member 1 with a hot water cut hole according to the first embodiment as described above. That is, a part of the inner lid 3 remaining in the container body 5 is peeled from the lid member 1 from the outer peeling start cut 31, and a remaining hot water amount reducing hole 38 and a flap-like portion 39 are formed in a part of the inner lid 3. When the hot water is cut off, the flap-shaped portion 39 may not be pushed outward. In this case, the hot water cannot be discharged through the remaining hot water amount reducing hole 38.

そこで、第２実施形態に係る湯切り孔付き蓋材１においては、内蓋３の一部が外側剥離開始切目３１を基点に蓋材１より剥離した場合にも、残湯量低減孔３８を閉じるフラップ状部３９が形成されないように内蓋３を以下のように構成し、残湯量の低減を確実に実現することを目的とする。   Therefore, in the lid member 1 with a hot water cut hole according to the second embodiment, the remaining hot water amount reducing hole 38 is closed even when a part of the inner lid 3 peels from the lid material 1 with the outer peeling start cut 31 as a base point. The inner lid 3 is configured as follows so that the flap-shaped portion 39 is not formed, and the object is to reliably reduce the amount of remaining hot water.

図９は、本発明の第２実施形態に係る湯切り孔付き蓋材１を示している。なお、本発明の第２実施形態に係る蓋材１は、以下に説明するように、外側剥離開始切目の構成が異なる点と延長形成領域３５ａが形成されている点を除けば、第１実施形態に係る蓋材１と同一である。したがって、以下の第２実施形態に係る蓋材１の説明においては、その構成が第１実施形態と同一である部分については、対応する部分に同一符号を付して説明を省略し、異なる部分についてのみ説明する。   FIG. 9 shows a lid member 1 with a hot water hole according to a second embodiment of the present invention. The lid 1 according to the second embodiment of the present invention, as will be described below, is different from the first embodiment except that the configuration of the outer peeling start cut is different and the extended formation region 35a is formed. It is the same as the cover material 1 which concerns on a form. Therefore, in the description of the lid member 1 according to the following second embodiment, the same reference numerals are given to the corresponding parts of the parts having the same configuration as that of the first embodiment, the description is omitted, and different parts. Only will be described.

内蓋３には、図９及び図１０に示したように、外側剥離開始切目３１と、残湯量低減孔３８を延長形成する延長形成領域３５ａとが形成されている。外側剥離開始切目３１は、内蓋３のタブ１１の基部近傍で、内側剥離開始切目３２より外側の位置に形成されている。延長形成領域３５ａは、図９（ｂ）及び図１０において斜線部で示したように、内蓋３のタブ１１の基部近傍に形成され、残湯量低減孔３８が形成される領域の基端と接している。延長形成領域３５ａは、内蓋３の外周縁に向かって延在して外側剥離開始切目を第１外側剥離開始切目３１ａと第２外側剥離開始切目３１ｂとに分断している。第１外側剥離開始切目３１ａと第２外側剥離開始切目３１ｂとは、左右対称に構成されている。第１外側剥離開始切目３１の一端３１ａ１は、図１０に示したように、内側剥離開始切目３２と残湯量低減孔形成切目３５との第１交点部４０ａに近接している。一方、第２外側剥離開始切目３１ｂの一端３１ｂ１は、内側剥離開始切目３２と残湯量低減孔形成切目３５との第２交点部４０ｂに近接している。第１外側剥離開始切目３１ａは、内側剥離開始切目３２の一端３２ａに向かって延在し、その他端３１ａ２が内側剥離開始切目３２に近接している。第２外側剥離開始切目３１ｂは、内側剥離開始切目３２の他端３２ｂに向かって延在し、その他端３１ｂ２が、内側剥離開始切目３２に近接している。 As shown in FIGS. 9 and 10, the inner lid 3 is formed with an outer peeling start cut 31 and an extension formation region 35 a for extending the remaining hot water amount reduction hole 38. The outer peeling start cut 31 is formed at a position outside the inner peeling start cut 32 in the vicinity of the base portion of the tab 11 of the inner lid 3. The extension forming region 35a is formed in the vicinity of the base portion of the tab 11 of the inner lid 3 as shown by the hatched portion in FIG. 9B and FIG. 10, and the base end of the region where the remaining hot water amount reducing hole 38 is formed. It touches. The extension forming region 35a extends toward the outer peripheral edge of the inner lid 3 and divides the outer peeling start cut into a first outer peeling start cut 31a and a second outer peeling start cut 31b. The first outer peeling start cut 31a and the second outer peeling start cut 31b are configured symmetrically. One end 31a 1 of the first outer release starting cuts 31, as shown in FIG. 10, in proximity to the first intersection portion 40a of the inner peel starting cuts 32 and remaining hot water saving hole formed incision 35. One end 31b 1 of the second outer release starting cuts 31b are proximate to the second intersection portion 40b of the inner peel starting cuts 32 and remaining hot water saving hole formed incision 35. The first outer peeling start cut 31 a extends toward one end 32 a of the inner peeling start cut 32, and the other end 31 a 2 is close to the inner peeling start cut 32. The second outer peeling start cut 31 b extends toward the other end 32 b of the inner peeling start cut 32, and the other end 31 b 2 is close to the inner peeling start cut 32.

第２実施形態に係る蓋材１では、内側剥離開始切目３２がフランジ部５１の外端と接した状態（図１１（ａ））又はフランジ部５１の外端よりも外側にずれた状態（図１１（ｂ））で、内蓋３の外周がフランジ部５１に接着されている場合に、蓋材１を容器本体５から引き剥がすと、内蓋３の一部が、第１実施形態と同様に、内側剥離開始切目３２及び残湯量低減孔形成切目３５を剥離開始位置として蓋材１より剥離して容器本体５側に残り、残湯量低減孔３８が形成される（図１２（ａ）参照）。   In the lid member 1 according to the second embodiment, the state where the inner peeling start cut 32 is in contact with the outer end of the flange portion 51 (FIG. 11A) or the state where it is shifted outward from the outer end of the flange portion 51 (FIG. 11 (b)), when the outer periphery of the inner lid 3 is bonded to the flange 51, when the lid member 1 is peeled off from the container body 5, a part of the inner lid 3 is the same as in the first embodiment. In addition, the inner peeling start cut 32 and the remaining hot water amount reducing hole forming cut 35 are peeled from the lid material 1 with the peeling start position as the peeling start position, and remain on the container body 5 side, so that the remaining hot water amount reducing hole 38 is formed (see FIG. ).

また、内側剥離開始切目３２がフランジ部５１の外端よりも内側にずれた状態（図１１（ｃ））で、内蓋３の外周がフランジ部５１に接着されている場合に、蓋材１を容器本体５から引き剥がすと、内蓋３の一部が、第１外側剥離開始切目３１ａ、第２外側剥離開始切目３１ｂ及び残湯量低減孔形成切目３５を剥離開始位置として蓋材１より剥離して容器本体５側に残る。この場合、延長形成領域３５ａが残湯量低減孔３８を形成する領域の基端と接し、かつ、内蓋３の外周縁に向かって延在して外側剥離開始切目を第１外側剥離開始切目３１ａと第２外側剥離開始切目３１ｂとに分断しているので、第１実施形態とは異なり、フラップ状部３９を形成する部分が、蓋材１から剥離して容器本体５側に残ることはなく、延長形成領域３５ａによって延長形成された残湯量低減孔３８が内蓋３の一部に形成される（図１２（ｂ）参照）。したがって、このような第２実施形態に係る蓋材１によれば、蓋材１を容器本体５から引き剥がした時には、常に、残湯量低減孔３８が開口した状態で形成されるので、残湯量の低減を確実に実現することが可能である。   Further, when the inner peeling start cut 32 is displaced inward from the outer end of the flange portion 51 (FIG. 11C), the outer cover 3 is bonded to the flange portion 51 when the outer periphery of the inner lid 3 is bonded. Is peeled from the container body 5, a part of the inner lid 3 is peeled from the lid material 1 with the first outer peeling start cut 31 a, the second outer peeling start cut 31 b and the remaining hot water amount reduction hole forming cut 35 as the peeling start position. And remains on the container body 5 side. In this case, the extension forming region 35a is in contact with the base end of the region where the remaining hot water amount reducing hole 38 is formed, and extends toward the outer peripheral edge of the inner lid 3 so that the first outer peeling start cut 31a. And the second outer peeling start cut 31b, unlike the first embodiment, the portion forming the flap-shaped portion 39 is not peeled off from the lid 1 and remains on the container body 5 side. The remaining hot water amount reduction hole 38 extended by the extension formation region 35a is formed in a part of the inner lid 3 (see FIG. 12B). Therefore, according to the lid member 1 according to the second embodiment, when the lid member 1 is peeled off from the container body 5, the remaining hot water amount reducing hole 38 is always formed in an open state. Can be reliably realized.

なお、第２実施形態に係る蓋材１において、残湯量低減孔形成切目３５は、第１実施形態と同様に、必ずしも内側剥離開始切目３２の中央に位置する必要はなく、内側剥離開始切目３２の端部に位置するものであってもよい。この場合、蓋材１を容器本体５から引き剥がした時に、第１実施形態のようなフラップ状部３９を形成する部分が容器本体５側に残らないようにするために、延長形成領域３５ａを内蓋３に形成する必要があり、具体的には、残湯量低減孔３８が形成される領域の基端と接するように延長形成領域３５ａを構成し、この延長形成領域３５ａが、図１３に示したように、内蓋３の外周縁に向かって延在して外側剥離開始切目３１の延在を遮断していればよい。   In the lid member 1 according to the second embodiment, the remaining hot water amount reducing hole forming cut 35 is not necessarily located at the center of the inner peeling start cut 32 as in the first embodiment, and the inner peeling start cut 32 is not necessarily required. It may be located at the end of the. In this case, when the lid member 1 is peeled off from the container main body 5, the extension forming region 35 a is formed so that the portion that forms the flap-like portion 39 as in the first embodiment does not remain on the container main body 5 side. It is necessary to form the inner lid 3, and specifically, the extension formation region 35 a is configured so as to be in contact with the base end of the region where the remaining hot water amount reduction hole 38 is formed. As shown, it is only necessary to extend toward the outer peripheral edge of the inner lid 3 to block the extension of the outer peeling start cut 31.

従来の湯切り孔付き蓋材を示す説明図である。It is explanatory drawing which shows the conventional lid member with a hot water cut hole. 従来の湯切り孔付き蓋材を示す説明図である。It is explanatory drawing which shows the conventional lid member with a hot water cut hole. 図２の蓋材の容器側残留部分のみを残して除去された状態を示す即席食品容器の斜視図である。It is a perspective view of the instant food container which shows the state removed leaving only the container side residual part of the lid | cover material of FIG. 本発明の第１実施形態に係る湯切り孔付き蓋材を示す説明図である。It is explanatory drawing which shows the lid | cover material with a hot water cut hole which concerns on 1st Embodiment of this invention. 図４の湯切り孔付き蓋材が取り付けられた即席食品容器の斜視図である。It is a perspective view of the instant food container to which the lid material with a hot water cut hole of FIG. 4 was attached. 図５の蓋材と容器本体のフランジ部の位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of the cover part of FIG. 5, and the flange part of a container main body. 図５の蓋材の容器側残留部分のみを残して除去された状態を示す即席食品容器の斜視図である。It is a perspective view of the instant food container which shows the state removed leaving only the container side residual part of the lid | cover material of FIG. フラップ状部が押し出された状態を示す図７（ｂ）の即席食品容器の斜視図である。It is a perspective view of the instant food container of FIG.7 (b) which shows the state by which the flap part was extruded. 本発明の第２実施形態に係る湯切り孔付き蓋材を示す説明図である。It is explanatory drawing which shows the cover material with a hot water cut-out hole which concerns on 2nd Embodiment of this invention. 図９の蓋材裏面のタブ付近の部分拡大図である。It is the elements on larger scale near the tab of the lid | cover material back surface of FIG. 図９の蓋材と容器本体のフランジ部の位置関係を示す説明図である。It is explanatory drawing which shows the positional relationship of the cover part of FIG. 9, and the flange part of a container main body. 図９の蓋材の容器側残留部分のみを残して除去された状態を示す即席食品容器の斜視図である。It is a perspective view of the instant food container which shows the state removed leaving only the container side residual part of the lid | cover material of FIG. 図９の蓋材の変形例を示す裏面図である。It is a reverse view which shows the modification of the cover material of FIG.

符号の説明Explanation of symbols

１ 蓋材
２ 外蓋
３ 内蓋
３１ 外側剥離開始切目
３１ａ 第１外側剥離開始切目
３１ｂ 第２外側剥離開始切目
３２ 内側剥離開始切目
３３ 開口形成切目
３４ 湯切り孔形成切目
３５ 残湯量低減孔形成切目
３５ａ 延長形成領域
３６ 注ぎ口
３７ 湯切り孔
３８ 残湯量低減孔
３９ フラップ状部
４０ａ、４０ｂ 内側剥離開始切目と残湯量低減孔形成切目との交点部
５ 容器本体
５１ フランジ部 DESCRIPTION OF SYMBOLS 1 Cover material 2 Outer lid 3 Inner lid 31 Outer peeling start cut 31a 1st outer peeling start cut 31b 2nd outer peeling start cut 32 Inner peeling start cut 33 Opening cut 34 Hot water cut hole forming cut 35 Remaining hot water amount reduction hole forming cut 35a Extension formation region 36 Spout 37 Hot water cut hole 38 Remaining hot water amount reduction hole 39 Flap-like part 40a, 40b Intersection part of inner peeling start cut and residual hot water amount reduction hole formation cut 5 Container body 51 Flange part

Claims (3)

内蓋と外蓋の２層構造を有し、内蓋の外周を容器本体の開口周囲のフランジ部に接着することで当該容器本体を封止するとともに、当該フランジ部よりも外方に突出するタブを備えたシート状の蓋材において、
内蓋には、タブの基部近傍に配置される剥離開始切目と、該剥離開始切目より内蓋中心側に位置して注ぎ口を規定する開口形成切目と、剥離開始切目と開口形成切目との間に位置して湯切り孔を規定する湯切り孔形成切目とともに、残湯量低減孔を規定する残湯量低減孔形成切目を形成し、
湯切り孔形成切目の内側部分を除く、剥離開始切目と開口形成切目と内蓋の外周縁とで区画された領域内における内蓋と外蓋の接着強度は、前記領域外における内蓋と外蓋の接着強度よりも弱く設定されて、上記タブを摘んで当該蓋材を引き剥がしたときに、前記領域内にある内蓋の一部のみが容器本体に残るように構成され、
前記残湯量低減孔形成切目は、剥離開始切目と一体化されて、上記タブとは反対側の方向に突出するように、容器本体側に残る前記領域内の内蓋の一部に形成され、
前記内蓋には、前記剥離開始切目より外側に位置する外側剥離開始切目と、残湯量低減孔が形成される領域の基端と接して残湯量低減孔を延長形成する延長形成領域とが形成され、
前記延長形成領域は、内蓋の外周縁に向かって延在して前記外側剥離開始切目を分断していることを特徴とする、蓋材。 It has a two-layer structure of an inner lid and an outer lid, and seals the container body by adhering the outer periphery of the inner lid to a flange portion around the opening of the container body, and projects outward from the flange portion. In a sheet-like lid with a tab,
The inner lid includes a peeling start cut disposed near the base of the tab, an opening forming cut that is located closer to the inner lid center than the peeling start cut and defines a spout, and a peeling start cut and an opening forming cut. Along with a hot water cut hole forming cut defining a hot water cut hole positioned between, a remaining hot water amount reducing hole forming cut defining a residual hot water amount reducing hole is formed,
The adhesive strength between the inner lid and the outer lid in the region defined by the separation start cut, the opening formation cut and the outer peripheral edge of the inner lid, excluding the inner portion of the hot water cut hole forming cut, It is set to be weaker than the adhesive strength of the lid, and when the tab material is picked and the lid material is peeled off, only a part of the inner lid in the region remains in the container body,
The remaining hot water amount reducing hole forming cut is formed in a part of the inner lid in the region remaining on the container body side so as to be integrated with the peeling start cut and protrude in a direction opposite to the tab ,
The inner lid is formed with an outer peeling start cut located outside the peeling start cut and an extension formation region that extends and forms the remaining hot water reduction hole in contact with the base end of the region where the remaining hot water reduction hole is formed. And
The said extended formation area is extended toward the outer periphery of an inner cover, The said outer side peeling start cut is parted , The cover material characterized by the above-mentioned . 前記残湯量低減孔形成切目は、前記剥離開始切目の中央に形成されていることを特徴とする、請求項１記載の蓋材。   The lid material according to claim 1, wherein the remaining hot water amount reducing hole forming cut is formed at a center of the peeling start cut. 内蓋と外蓋の２層構造を有し、内蓋の外周を容器本体の開口周囲のフランジ部に接着することで当該容器本体を封止するとともに、当該フランジ部よりも外方に突出するタブを備えたシート状の蓋材において、It has a two-layer structure of an inner lid and an outer lid, and seals the container body by adhering the outer periphery of the inner lid to a flange portion around the opening of the container body, and projects outward from the flange portion. In a sheet-like lid with a tab,
内蓋には、タブの基部近傍に配置される剥離開始切目と、該剥離開始切目より内蓋中心側に位置して注ぎ口を規定する開口形成切目と、剥離開始切目と開口形成切目との間に位置して湯切り孔を規定する湯切り孔形成切目とともに、残湯量低減孔を規定する残湯量低減孔形成切目を形成し、The inner lid includes a peeling start cut disposed near the base of the tab, an opening forming cut that is located closer to the inner lid center than the peeling start cut and defines a spout, and a peeling start cut and an opening forming cut. Along with a hot water cut hole forming cut defining a hot water cut hole positioned between, a remaining hot water amount reducing hole forming cut defining a residual hot water amount reducing hole is formed,
湯切り孔形成切目の内側部分を除く、剥離開始切目と開口形成切目と内蓋の外周縁とで区画された領域内における内蓋と外蓋の接着強度は、前記領域外における内蓋と外蓋の接着強度よりも弱く設定されて、上記タブを摘んで当該蓋材を引き剥がしたときに、前記領域内にある内蓋の一部のみが容器本体に残るように構成され、The adhesive strength between the inner lid and the outer lid in the region defined by the separation start cut, the opening formation cut and the outer peripheral edge of the inner lid, excluding the inner portion of the hot water cut hole forming cut, It is set to be weaker than the adhesive strength of the lid, and when the tab material is picked and the lid material is peeled off, only a part of the inner lid in the region remains in the container body,
前記残湯量低減孔形成切目は、剥離開始切目と一体化されて、上記タブとは反対側の方向に突出するように、容器本体側に残る前記領域内の内蓋の一部に形成され、The remaining hot water amount reducing hole forming cut is formed in a part of the inner lid in the region remaining on the container body side so as to be integrated with the peeling start cut and protrude in a direction opposite to the tab,
前記内蓋には、前記剥離開始切目より外側に位置する外側剥離開始切目と、残湯量低減孔が形成される領域の基端と接して残湯量低減孔を延長形成する延長形成領域とが形成され、The inner lid is formed with an outer peeling start cut located outside the peeling start cut and an extension formation region that extends and forms the remaining hot water reduction hole in contact with the base end of the region where the remaining hot water reduction hole is formed. And
前記延長形成領域は、内蓋の外周縁に向かって延在して前記外側剥離開始切目の延在を遮断していることを特徴とする、蓋材。The said extended formation area is extended toward the outer periphery of an inner cover, and has blocked | interrupted extension of the said outer side peeling start cut.
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