JP2020075724A - Cup type container with easily unsealing function - Google Patents

Abstract

To provide a cup type container sealed with lid material with a tab, in which a tab is easy to knob, seal strength between the lid material and a cup type container body is not prevented even in opening, the cup type container can be opened with a smaller force and has an easily unsealing function.SOLUTION: A cup type container with an easily unsealing function consists of lid material and a container body, in which: a container body has an opening part; the opening part has a seal part at a peripheral edge part of the opening part; the lid material has a sealant layer at a container body side to covers the opening part and the peripheral edge part of the opening part; the lid material and the container body are sealed by the peripheral edge part; the cup type container is hermetically sealed; the opening part has partially a notched dent; the lid material has, at a part of the notched dent, a tab projecting from the seal part toward the outside of the container; and in the projecting tab, there is a hole or drilling possible processing is performed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a container. In particular, the present invention relates to a cup-shaped container with an easy-opening function, which can be easily opened when the lid is opened to expose the contents and the contents are taken out.

  For example, a product in which a cup-shaped container made of paper or plastic is filled with food, and the opening is sealed and sealed with a lid made of paper or plastic film is convenient and economical. As a product, various items are bustling in shelves such as retail stores and convenience stores.

  Taking food as an example of the cup-shaped container, for example, there is a miso cup packaging as an aseptic packaging for desserts such as yogurt, jelly, and pudding, and aseptic packaging capable of storing and cooking rice. There is packaging or cup packaging of cup ramen.

  In addition, medical products such as syringes, industrial products such as ink cartridges and toner containers, and toiletry products such as wet tissues and detergents have been commercialized in a wide variety of fields. It has become an indispensable part of our lives.

  In many cases, it is required to maintain a hermetically sealed state during storage, and when it is desired to take out the contents, it is desired that the lid can be easily opened. In response to such seemingly trade-off requirements, the easy peel packaging technique has been developed.

  On the other hand, with the increasing number of consumers demanding more convenience, or with the advent of an aging society, there is a growing need for easy-opening, that is, so-called barrier-free needs, which are easier to handle and do not require a great deal of power to open them. There is.

  On the other hand, Patent Document 1 proposes a lid in which a lid is provided with a tab and a cut extending inward from the tab is provided in a container in which a lid is heat-sealed and sealed in a cup-shaped container. However, with this method, the opening of the lid is limited to partial opening, and the entire opening of the cup-shaped container cannot be opened with a single opening operation.

Published Utility Model No. Sho 62-203858

  The present invention has been made in view of such circumstances, in a cup-shaped container sealed with a lid member with a tab, the tab is easy to pinch, and even when opened, the lid member and the cup-type container body An object of the present invention is to provide a cup-shaped container with an easy-opening function that can be opened with a smaller force without hindering the sealing strength.

As a means for solving the above problems, the invention according to claim 1 is
In a cup-shaped container consisting of a lid material and a container body,
The container body has an opening,
The opening has a seal portion at its peripheral edge,
The lid member covers the opening and the peripheral edge thereof,
The lid member and the container body are sealed at this peripheral portion, and the cup-shaped container is sealed,
The opening has a notch-shaped recess in a part thereof,
The lid material has a tab protruding from the seal portion to the outside of the container at the cutout-shaped recessed portion,
A cup-shaped container with an easy-opening function, characterized in that the protruding tab has a hole or a process capable of making a hole.

The invention according to claim 2 is
The cup-shaped container with the easy-opening function according to claim 1, wherein the opening has a quadrangular shape, and one or more of the four corners has a notch-shaped recess.

The invention according to claim 3 is
The cup-type container with the easy-opening function according to claim 1 or 2, wherein an easy peel film layer is provided and sealed on the container body side of the lid member.

Further, the invention according to claim 4 is
4. The tab of the opening which does not have a notch-shaped recess has a tab protruding from the sealing portion to the outside of the container. Is a cup-shaped container with an easy-opening function.

Further, the invention according to claim 5 is
The seal width of a part of the opening portion, which does not have a notch-shaped recess, is wider than the seal width of the other peripheral edge portion. It is a cup-shaped container with an easy-opening function as described in any one.

The invention according to claim 6 is
The cup-type container with the easy-opening function according to any one of claims 1 to 5, wherein the lid member has a layered structure including a gas barrier layer formed of a metal foil or a vapor deposition layer of an inorganic compound. Is.

The invention according to claim 7 is
7. The cup-type container with the easy-opening function according to claim 1, wherein the container body includes a gas barrier layer in a layered structure or is provided on the surface.

Further, the invention according to claim 8 is
8. The lid member is provided with perforations or cuts for separating a portion that is separated from the container body upon opening and a portion that remains in the seal portion, according to any one of claims 1 to 7. It is a cup-shaped container with an easy-opening function described in Crab.

Further, the invention according to claim 9 is
The cup-type container with an easy-opening function according to claim 8, wherein the perforation or the cut is provided by half-cutting.

According to the present invention, in a cup-shaped container sealed with a lid member with a tab, the tab is easily pinched, and even when the container is opened, the sealing strength between the lid member and the cup-shaped container body is not hindered, and the size is smaller. It is possible to provide a cup-shaped container with an easy-opening function that can be opened by force.

  That is, the opening part has a notch-shaped recess, and the lid member has a tab protruding from the seal part to the outside of the container at the part of the notch-shaped recess. , It has the effect of making it easier to pinch the tab with your fingers.

  In addition, the tab protruding from the seal part to the outside of the container has a hole or is processed so that it can be punched, so that a stick-shaped object such as a chopstick or spoon handle can be inserted into the hole. , The lid material can be pulled open, and can be easily opened with a small force.

  Further, in particular, according to the invention described in claim 2, in the cup-shaped container sealed with the lid member with the tab, the tab is easily pinched, and even when the container is opened, the seal between the lid member and the cup-shaped container body is made. It is possible to realize and provide a cup-shaped container with an easy-opening function in a rectangular shape that can be opened with a smaller force without impairing the strength.

  In addition, the rectangular container is convenient because it can efficiently store the contents, and also has the advantage that the transportation efficiency is high as a container, and it is commonly used. high. Therefore, realization of the present invention in the shape of a quadrangle leads to a wider product development.

  Further, according to the invention described in claim 3, in particular, since the easy peel film layer is provided and sealed on the container body side of the lid member, the lid member can be opened with a smaller force and has an easy opening function. It is possible to provide a cup-shaped container.

  In other words, it is required to maintain the sealed state during storage, and if you want to take out the contents, it is desired that the lid can be easily opened.At first glance, it can be said that it is a trade-off with the easy peel film seal. Will be possible.

  Further, according to the invention described in claim 4, in particular, by having a small tab protruding from the seal portion to the outside of the container in the portion having no notch-shaped recess, the tab according to the present invention , It is possible to provide a cup-shaped container with an easy-opening function that can be opened with a smaller force, and it is possible to select a conventional opening method with a small tab, making the container rich in variety It is possible.

  Further, in particular, according to the invention as set forth in claim 5, a part of the seal width is wider than the seal width of the other peripheral portion in the portion having no notch-shaped recess.

  For example, in the case of a quadrangular container, at the corners of the four corners of the opening that do not have tabs protruding outside the container at the notched recesses, the sealing part for sealing is more than the sealing width of the four sides of the quadrangle. By widening and forming a triangular shape, when opening, a portion having a wide seal width can be used as a pressing spot of the container body to make opening easier and more stable.

  Further, in particular, according to the invention described in claim 6, since the lid material has a layered structure including a gas barrier layer composed of a metal foil or a vapor deposition layer of an inorganic compound, the preservability of the contents is improved or the external environment is improved. It is possible to add a function such as preventing deterioration due to.

  Further, in particular, according to the invention described in claim 7, since the container main body includes the gas barrier layer in the layer structure or is provided on the surface, the storability of the contents is improved and the deterioration due to the external environment is prevented. It is possible to add a function such as doing.

  Further, in particular, according to the invention described in claim 8, since the lid member is provided with perforations or cuts for separating a portion separated from the container body upon opening and a portion remaining in the seal portion, It is possible to provide a cup-type container with an easy-opening function that can be opened with a smaller force without impeding the sealing strength between the lid member and the cup-type container body.

  That is, the portion remaining in the seal can be used as a pressing spot at the time of opening, and the opening can be made easier and more stable.

  Further, according to the invention described in claim 9 in particular, since a perforation or a cut for separating a portion separated from the container body upon opening and a portion remaining in the seal portion is provided by a half cut, the gas barrier property is provided. It is possible to provide a cup-type container with an easy-opening function that can be opened with a smaller force without affecting the above, and without hindering the sealing strength between the lid member and the cup-type container body.

  That is, the portion remaining in the seal can be used as a pressing spot at the time of opening, and the opening can be made easier and more stable.

FIG. 1 is a schematic perspective view for explaining one embodiment of a cup-type container with an easily opening function according to the present invention. FIG. 2 is a schematic perspective view for explaining a state during opening of an embodiment of the cup-type container with the easy-opening function according to the present invention. FIG. 3 is a schematic perspective view for explaining an example in which the container body is a quadrangle in another embodiment of the cup-type container with the easy-opening function according to the present invention. FIG. 4 is a perspective schematic view for explaining a sealed state of another embodiment of the cup-type container with the easy-opening function according to the present invention, in which the container body has a quadrangular shape and the tab has a different form. It is a figure. FIG. 5 is a schematic perspective view for explaining an example of the unsealing work in an example in which the container body has a quadrangular shape in another embodiment of the cup-shaped container with the easy-opening function according to the present invention. FIG. 6 is a perspective schematic view for explaining an example of an opened state of an example in which the container body has a quadrangular shape in another embodiment of the cup-type container with the easy-opening function according to the present invention. FIG. 7 is a schematic perspective view for explaining an example in which a lid member is provided with a cut in an example in which the container body has a quadrangular shape in another embodiment of the cup-type container with the easy-opening function according to the present invention. FIG. 8 is a perspective schematic view for explaining an example in which a half cut cut is provided in a lid material in an example in which a container body is a quadrangle in an embodiment of a cup-shaped container with an easy-opening function according to the present invention. is there.

  Hereinafter, the present invention will be described in more detail with reference to FIGS. However, the present invention is not limited to the examples shown here. The invention is limited by the claims.

  FIG. 1 is a schematic perspective view for explaining one embodiment of a cup-type container with an easily opening function according to the present invention.

  The present invention is a cup-shaped container (1), which has an easy-opening function and comprises a lid material (10) and a container body (20). In the example shown in FIG. 1, the container body (20) has an elliptical outer shape, and has a shape in which the center portion is recessed in a boat shape, and therefore the opening and the lid member (10) also have an elliptical shape. The shape.

  The lid member (10) can be made of a plastic film, paper, metal foil, or the like, which is used alone or as a laminate. The plastic film is a film made of a polymer resin composition and includes, for example, polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide (nylon-6, nylon-66, etc.), Polyimide or the like can be used and is appropriately selected depending on the application.

  Particularly, when polypropylene or polyethylene terephthalate is used as the plastic film, it is more preferable in terms of film strength and cost. In addition, when a stretched polyamide film is used, it is possible to impart puncture toughness and impact toughness to the laminate.

  Further, the plastic film can be laminated with another layer via an adhesive layer to form a laminate. The layer structure, the material structure, the thickness, and the like of the laminate can be appropriately designed according to the required quality and for imparting a selective function.

  The lid material (10) and the container body (20) can be sealed, for example, by providing a sealant layer on the surface of the lid material (10) on the container body (20) side to seal the cup-shaped container (1). it can.

  As a material for the sealant layer, a polyolefin resin is generally used among thermoplastic resins, and specifically, low density polyethylene resin (LDPE), medium density polyethylene resin (MDPE), linear low density polyethylene resin. (LLDPE), ethylene-vinyl acetate copolymer (EVA), ethylene-α olefin copolymer, ethylene-methacrylic acid resin copolymer, and other ethylene-based resins, blended resins of polyethylene and polybutene, and homopolypropylene resins. Polypropylene resins such as (PP), propylene-ethylene random copolymer, propylene-ethylene block copolymer, propylene-α-olefin copolymer and the like can be used. It can be appropriately selected in consideration of the material of the container body (20) and the like.

  To form the sealant layer, a resin that has been melted can be formed into a film using an extruder or the like, and a layer can be formed on the laminated body of the lid material (10). Alternatively, it is also possible to form a sealant layer on the surface of the laminated body of the lid material (10) by laminating materials that have been formed into a film in advance by laminating.

  Further, the lid member (10) and the container body (20) are sealed by a seal portion (19), but as a sealant layer, the easy peel is provided on the container body (20) side of the lid member (10). The film layer may be provided and sealed.

  This is the subject of the present invention, in the cup-shaped container (1) sealed with the lid material (10) with the tab (11), the tab (11) is easy to pinch, and the lid is also opened. It is purposeful to provide a cup-shaped container (1) with an easy-opening function that can be opened with a smaller force without disturbing the sealing strength between the material (10) and the cup-shaped container body (20). ..

  In other words, it is required to maintain the sealed state during storage, and if you want to take out the contents, it is desired that the lid can be easily opened.At first glance, it can be said that it is a trade-off with the easy peel film seal. Will be possible.

  The easy peel film can be appropriately selected and purchased from those commercialized for, for example, the lid material (10) of the cup-shaped container (1) and commercialized by each material manufacturer. On the other hand, the container body (20) side is wide, for example, for polystyrene, polyethylene, polypropylene, and amorphous polyethylene terephthalate.

  As for the peeling mechanism of the easy peel film, there are an interfacial peeling type, a cohesive peeling type, an interlayer peeling type and the like.

  In general, the interfacial peeling type is one of the features that the peeling surface is smooth and beautiful, and the cohesive peeling type is characterized in that it is not easily affected by foreign substances during sealing. In addition to being less susceptible to the effects of foreign matter, the peel strength is characterized by being constant and stable irrespective of the fusion conditions.

  Therefore, in addition to the peel strength, it can be appropriately selected and used depending on the material of the container body (20) side, the contents, the environment of use thereof, and the like.

  Further, the lid member (10) of the cup-shaped container (1) with an easily opening function according to the present invention may have a layer structure including a gas barrier layer formed of a metal foil or a vapor deposition layer of an inorganic compound.

  For this purpose, for example, for the purpose of improving the storability of the contents, a gas barrier film provided with a gas barrier layer on the surface of a plastic film can be used in the layer structure of the lid material (10).

  Alternatively, a metal foil such as aluminum is also effective as a gas barrier layer, but when the cooking in a microwave oven is possible, for example, sparks due to high frequency are generated, so caution is required.

  On the other hand, the container body (20) has an opening, and the opening has a seal portion (19) at its peripheral edge, and the lid member (10) has an opening and its peripheral edge. The lid member (10) and the container body (20) are covered with each other, and the cup-shaped container (1) is sealed by the sealing portion (19).

  The tab (11) protruding from the recess (23) on the notch of the container body (20) in the outer direction of the container is provided with a hole (12) or is perforated. In the example shown in FIG. 1, a hole (12) is provided.

  FIG. 2 is a schematic perspective view for explaining a state during opening of an embodiment of the cup-type container with the easy-opening function according to the present invention.

  In the state of being opened as shown in FIG. 2, the lid member (10) is half opened and the inside of the container body (20) is half exposed.

  In the example shown in FIG. 2, as in FIG. 1, the container body (20) has an elliptical shape, and thus the opening (21) and the lid (10) also have an elliptical shape.

The opening portion (21) has a peripheral edge portion (22), and the lid member (10) and the container body (20) are sealed by the peripheral edge portion (22) to form a seal portion (19). The cup-shaped container (1) is then sealed.

  The opening (21) has a cutout-shaped recess (23) in a part thereof, and the lid member (10) is the seal portion (19) at the cutout-shaped recess (23). ) Has a tab (11) protruding from the container to the outside of the container.

  In the example shown in FIGS. 1 and 2, the notch-shaped recess (23) is provided at one location on one of the elliptical major axes. If necessary, a plurality of sets may be provided with the notch-shaped recess (23) and the tab (11) protruding outside the container.

  When opening the cup-type container (1) with an easy-opening function according to the present invention, the tab (11) protruding from the notch-shaped recess (23) to the outside of the container is pinched with fingers, and the direction of the arrow (2) in the figure is shown. Pull it to open it. By the pulling force, the seal portion (19) is peeled off and the opening is performed.

  Further, as shown in FIG. 2, even if the opening (21) is in a half-open state, it can be taken out depending on the contents, but the tab (11) is further pulled in the direction of the arrow (3) in the figure to close the lid. It is also possible to separate the material (10) from the container body (20) and open the opening (21) of the container body (20) fully. When fully opened, the entire opening (21) can be overlooked and the contents can be taken out more easily.

  At the time of the unsealing work by fingers, the notch-shaped recess (23) is provided in a part of the opening (21), so that the tab (11) has an area corresponding to the notch-shaped recess (23). The tab (11) is easier to pinch and pull because of its large size and because it is possible to insert a fingertip into the notch-shaped recess (23). This is effective as an easy opening function.

  Also, due to the fact that the tab (11) has the hole (12), it is easy for the fingers to directly touch each other at the hole (12), making it easier to pinch, less slippery, and easier to pull, which is effective as an easy opening function. is there.

  Furthermore, it is also possible to insert a stick-shaped device, for example, a handle of a spoon into the hole (12) and pull the tab (11) while holding the stick or the handle of the spoon. It is effective and can effectively meet the barrier-free needs of children, people with weak finger strength, elderly people, and the like.

  The hole (12) may be a hole (12) provided by pre-drilling, or a holeable process such as a cut or a perforation process is performed to easily form the hole (12). You can enable it.

  FIG. 3 is a schematic perspective view for explaining an example in which the container body is a quadrangle in another embodiment of the cup-type container with the easy-opening function according to the present invention.

  The present invention is a cup-shaped container (1), which has an easy-opening function and comprises a lid member (10) and a container body (20). The shape of the container body (20) is arbitrary, and may be a polygonal shape, a circular shape, or an elliptical shape shown in FIGS. The example shown in FIG. 3 is an example in which the container body (20) is a substantially square quadrangle, and therefore the opening (21) and the lid member (10) are also substantially square quadrangles.

  That is, in the cup-shaped container (1) hermetically sealed with the lid member (10) with the tab (11), the tab (11) is easily pinched, and the lid member (10) and the cup-shaped container are easily opened. It is possible to realize and provide a cup-shaped container (1) with an easy-opening function, which can be opened with a smaller force without hindering the sealing strength with the main body (20), in a rectangular shape.

  In addition to that, the rectangular container is highly convenient because it can efficiently store the contents. Further, the container itself has advantages such as easy stackability and high transportation efficiency, and is generally frequently used. Therefore, the realization of the present invention in a rectangular shape enables a wider range of product development.

  Also in this example, the container body (20) has an opening (21), the opening (21) has a peripheral edge (22) thereof, and the lid member (10) has an opening. The lid member (10) and the container body (20) are sealed by the peripheral edge portion (22) so as to cover the (21) and the peripheral edge portion (22) to hermetically seal the cup-shaped container (1). You can

  In the present invention, for example, as in the example shown in FIG. 3, the container body (20) may be a quadrangle, and notches (23) may be provided at one or more of the four corners of the quadrangle. ..

  In the example shown in FIG. 3, one of the four corners has a notch-shaped recess (23). If necessary, similar notch-shaped recesses can be provided at diagonal corners of the notch-shaped recess (23) shown in the drawing.

  The lid member (10) has a tab (11) protruding from the cutout-shaped recess (23) to the outside of the container. As described above, when a similar notch-shaped recess is provided at a diagonal corner of the notch-shaped recess (23), a tab protruding toward the outside of the container is also provided on the lid member (10) at that portion. Can be provided. This allows the opening to be done from either side.

  FIG. 4 is a perspective schematic view for explaining a sealed state of another embodiment of the cup-type container with the easy-opening function according to the present invention, in which the container body has a quadrangular shape and the tab has a different form. It is a figure.

  In the example shown in FIG. 3 and FIG. 4, the shape of the container body (20) and the opening (21) and the shape of the lid member are substantially square quadrangles. However, FIG. 3 shows an example in which the tab (11) is provided with a hole (12).

  On the other hand, FIG. 4 shows an example in which the tab (11) is provided with perforations (15) as a drillable process. A hole can be formed in this portion by cutting the perforation (15). In the present invention, any of them can be used and may be appropriately selected.

  In addition, as in the example shown in FIG. 4, in a portion of the opening which does not have the notch-shaped recess (23), a part of the seal width is wider than the seal width of the other peripheral edge portion. A wide portion (A) and a wide seal portion (B) can be used.

  Here, in the wide portion (A) of the seal portion and the wide portion (B) of the seal portion, the width of the seal portion (19) is wide to form a triangular corner portion. is there.

  This portion is a portion that enables, for example, when opening the cup-shaped container (1) to press the corner portion with a hand opposite to the hand pulling the lid material (10), and this also It is effective for the easy opening function of the cup-shaped container (1). This will be described later with reference to FIGS. 7 and 8.

  FIG. 5 is a schematic perspective view for explaining an example of the unsealing work in an example in which the container body has a quadrangular shape in another embodiment of the cup-shaped container with the easy-opening function according to the present invention.

  As described above, when opening the cup-type container (1) with an easy-opening function according to the present invention, the tab (11) protruding from the notch-shaped recess (23) to the outside of the container is pinched with fingers, and the inside of FIG. The opening operation can be performed by pulling in the direction of the arrow (2).

  Further, in the present invention, a rod-shaped device, for example, a handle of chopsticks or a spoon is inserted into a hole (12) provided in a tab (11) protruding from the notch-shaped recess (23) to the outside of the container and pulled. It is also possible.

  In the example shown in FIG. 4, the rod (30) held in the hand (40) is inserted into the hole (12), the tip of the rod is in the direction of arrow (31), and the base of the rod is in the direction of arrow (32). It is a method of rotating each and opening them like a lever.

  According to this method, it is possible to meet the barrier-free needs of people who have particularly weak finger strength, elderly people, and the like. This hole (12) may be a hole (12) provided by punching in advance, or may be a hole that can be drilled, for example, a hole formed by cutting or perforating.

  FIG. 6 is a perspective schematic view for explaining an example of an opened state of an example in which the container body has a quadrangular shape in another embodiment of the cup-type container with the easy-opening function according to the present invention.

  After the state shown in FIG. 5, the opening operation is performed by the rod (30) held in the hand (40), and the lid member (10) is moved in the direction of the arrow (34) in FIG. 6 while holding the rod (30). ) And the cup-shaped container (1) can be easily opened.

  As a result, the opening (21) is largely exposed, and the contents (33) can be easily taken out. As described above, according to the present invention, in the cup-shaped container (1) sealed with the lid member (10) having the tab (11), the tab (11) is easily pinched, and the lid can be opened even when opened. It is possible to provide a cup-type container (1) with an easy-opening function that can be opened with a smaller force without disturbing the sealing strength between the material (10) and the cup-type container body (20).

  FIG. 7 is a schematic perspective view for explaining an example in which a lid member is provided with a cut in an example in which the container body has a quadrangular shape in another embodiment of the cup-type container with the easy-opening function according to the present invention.

  Further, in the present invention, as in the example shown in FIG. 7, a small tab (13) protruding from the seal portion (19) to the outside of the container is provided at a portion of the opening which does not have the notch-like recess (23). ) Can be provided. The small tab (13) is a tab having a conventionally known shape and can be accepted without any problems in a normal case or a normal person.

  In addition, in FIG. 7, in addition to the seal portion (19), a range (18) such as the tab (11) and the small tab (13) where the contents do not contact due to a seal or the like is indicated by a shaded area.

  In addition to the tab (11) provided in the notch-shaped recess (23) according to the present invention, it has a small tab (13), so that it can be opened with a smaller force, and a cup-type container with an easy-opening function ( 1) can be provided, and the small tab (13) allows the conventional opening method to be selected, which is a cup type that can be opened by a wide variety of people and is accepted by various people. It can be a container (1).

  Further, in the example shown in FIG. 7, in the seal portion (19), a cut (14) is provided in the wide portion (A) of the seal portion and the wide portion (B) of the seal portion. This is because, when the lid material (10) is pulled and opened, the lid material (10) is not peeled off at the corner portion outside the cut (14) and is separated from the lid material (10), and the container body It is possible to remain on the (20) side.

  Due to this remaining, for example, by pressing this portion with the hand opposite to the hand that pulls the lid member (10) and tries to open the opening, it becomes possible to perform the opening operation more easily and stably. It is effective for improving and stabilizing functions.

  Further, the cut (14) is provided in a shaded portion in FIG. 7, that is, in a range (18) where the contents do not contact due to a seal or the like, and even when the lid (10) is penetrated, it is against the contents. There is no effect on the sealing property or storability.

  FIG. 8 is a perspective schematic view for explaining an example in which a half cut cut is provided in a lid material in an example in which a container body is a quadrangle in an embodiment of a cup-shaped container with an easy-opening function according to the present invention. is there.

  Further, in the present invention, as in the example shown in FIG. 8, in the present invention, as in the example shown in FIG. A tab (13) can be provided.

  In FIG. 8 as well, in addition to the seal portion (19), the range (18) where the contents do not contact due to the seal such as the tab (11) and the small tab (13) is shown by the shaded area.

  In addition to the tab (11) provided in the notch-shaped recess (23) according to the present invention, it has a small tab (13), so that it can be opened with a smaller force, and a cup-type container with an easy-opening function ( 1) can be provided, and the small tab (13) allows the conventional opening method to be selected, which is a cup type that can be opened by a wide variety of people and is accepted by various people. It can be a container (1).

  Further, in the example shown in FIG. 8, the seal portion (19) is not provided with a portion having a particularly wide seal width at the corner portion. Further, a half cut (16) is provided in place of the cut (14) shown in FIG.

  This part is also that the lid material (10) does not peel off at the corner portion outside the half cut (16) when the lid material (10) is pulled and opened to open the lid material (10). And is allowed to remain on the container body (20) side.

  Due to this remaining, for example, by pressing this portion with the hand opposite to the hand that pulls the lid member (10) and tries to open the opening, it becomes possible to perform the opening operation more easily and stably. It is effective for improving functions.

Further, since the half cut (16) is provided in a half cut shape without penetrating the lid material (10), the influence of the sealing property and the preservability on the contents is affected in the range where the cut does not reach the gas barrier layer or the like. There is no.

  Further, as described above, the lid member (10) of the cup-shaped container (1) with the easy-opening function according to the present invention can have a layer structure including a gas barrier layer formed of a metal foil or a vapor deposition layer of an inorganic compound.

  For this purpose, for example, for the purpose of improving the storability of contents, a gas barrier film having a gas barrier layer provided on the surface of a plastic film can be used in the layer constitution.

  In the case of a gas barrier film, the plastic film used is a film made of a polymer resin composition, for example, polyolefin (polyethylene, polypropylene, etc.), polyester (polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, etc.), polyamide. (Nylon-6, nylon-66, etc.), polyimide and the like can be used and are appropriately selected according to the application. In particular, when polypropylene or polyethylene terephthalate is used as the plastic film substrate, it is more preferable in terms of film strength and cost.

  In the case of a gas barrier film, the gas barrier layer can be composed of a vapor deposition layer and a coating layer of an inorganic compound. After providing an anchor coat on a plastic film, the vapor deposition layer and the coating layer are sequentially provided.

  For the anchor coat layer of the gas barrier film, urethane acrylate can be used, for example. To form the anchor coat layer, a coating method in which a coating material obtained by dissolving a resin in a solvent is applied by a printing method such as gravure coating, or a coating method can be formed by using a generally known coating method.

  As a method for forming a vapor deposition layer, an inorganic compound such as SiO or AlO can be coated on a plastic film provided with an anchor coat layer by using a vacuum vapor deposition method to form an inorganic compound layer by a vacuum vapor deposition method. . Incidentally, the thickness of the vapor deposition layer is preferably 15 nm to 30 nm.

  As a method for forming the coating layer, an aqueous solution or water / alcohol containing at least one of a water-soluble polymer and (a) one or more alkoxides or hydrolysates thereof, or both (b) tin chloride. A coating agent having a mixed aqueous solution as a main component is applied on a film and dried by heating to form an inorganic compound layer by a coating method to form a coating layer. At this time, by adding a silane monomer to the coating agent, the adhesion with the anchor coat layer can be improved.

  The inorganic compound layer has a gas barrier property only by a coating film formed by a vacuum vapor deposition method, but a coating layer that is an inorganic compound layer formed by a coating method is formed on a vapor deposition layer that is an inorganic compound layer formed by a vacuum vapor deposition method to form a gas barrier layer. be able to.

  By combining these two layers, both reaction layers are formed at the interface between the inorganic compound layer formed by vacuum deposition and the inorganic compound layer formed by coating, or the inorganic compound layer formed by coating becomes an inorganic compound layer formed by vacuum deposition. A dense structure is formed by filling and reinforcing defects or fine holes such as pinholes, cracks, and grain boundaries that occur.

Therefore, as a gas barrier film, higher gas barrier properties, moisture resistance, and water resistance can be realized, and since the gas barrier film has flexibility to withstand deformation due to external force, it can be suitable as a lid material.

  Further, when SiO, for example, is used as the gas barrier layer, the coating film is transparent, so that the contents can be seen from the outside of the lid member. The gas barrier film or the metal foil may be properly used depending on the application and the required quality.

  Further, the container body may include a gas barrier layer in the layer structure or may be provided on the surface. Similar to the case of the lid member, this is intended to improve the storability of the contents, for example.

  For example, it is also effective to provide an ethylene / vinyl alcohol copolymer resin as a gas barrier layer in the layer constituting the container body, and the container body is coated with a resin material having a gas barrier property to form a gas barrier layer. May be formed.

  As described above, according to the cup-shaped container with the easy-opening function of the present invention, the tab is easily pinched in the cup-shaped container sealed with the lid member with the tab, and the lid member and the cup-shaped container are easily opened. It is possible to provide a cup-type container with an easy-opening function that can be opened with a smaller force without hindering the sealing strength with the main body.

1 ... Cup type container 2 ... Arrow 3 ... Arrow 10 ... Lid material 11 ... Tab 12 ... Hole 13 ... Small tab 14 ... Break 15 ... Perforation 16 ... Half cut 17 ... Normal seal width portion 18 ... Area where contents do not contact due to a seal 19 ... Seal portion 20 ... Container body 21 ... Opening portion 22 ...・ Peripheral part 23 ... Notch-shaped recess 30 ... Rod 31 ... Arrow 32 ... Arrow 33 ... Contents 34 ... Arrow 40 ... Hand A ... Seal part Wide part B ... Wide part of the seal part

Claims (9)

In a cup-shaped container consisting of a lid material and a container body,
The container body has an opening,
The opening has a seal portion at its peripheral edge,
The lid member covers the opening and the peripheral edge thereof,
The lid member and the container body are sealed at this peripheral portion, and the cup-shaped container is sealed,
The opening has a notch-shaped recess in a part thereof,
The lid material has a tab protruding from the seal portion to the outside of the container at the cutout-shaped recessed portion,
A cup-shaped container with an easy-opening function, characterized in that the protruding tab has a hole or a process capable of making a hole.   The cup-shaped container with the easy-opening function according to claim 1, wherein the opening has a quadrangular shape, and one or more of the four corners has a notch-shaped recess.   The cup-type container with the easy-opening function according to claim 1 or 2, wherein an easy peel film layer is provided and sealed on the container body side of the lid member.   4. The tab of the opening which does not have a notch-shaped recess has a tab protruding from the sealing portion to the outside of the container. Cup type container with easy opening function.   The seal width of a part of the opening portion, which does not have a notch-shaped recess, is wider than the seal width of the other peripheral edge portion. The cup-shaped container with the easy-open function described in any of the above.   The cup-shaped container with the easy-opening function according to any one of claims 1 to 5, wherein the lid material has a layered structure including a gas barrier layer formed of a metal foil or a vapor deposition layer of an inorganic compound. .   The cup-type container with the easy-opening function according to any one of claims 1 to 6, wherein the container body includes a gas barrier layer in a layered structure or is provided on the surface.   8. The lid member is provided with perforations or cuts for separating a portion that is separated from the container body upon opening and a portion that remains in the seal portion, according to any one of claims 1 to 7. A cup-shaped container with an easy-open function described in Crab.   The cup-type container with the easy-opening function according to claim 8, wherein the perforation or the cut is provided by half-cutting.

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