KR20200136273A - a lead film of plastic containers with a well-selected straw - Google Patents

Abstract

The present invention relates to a plastic container lid film into which straws can be easily stuck and, more particularly, to a novel plastic container lid film into which straws can be easily stuck, which allows an aluminum lid used to seal a disposable plastic container to be replaced with a film material such as a plastic container that can be recycled, thereby increasing recycling efficiency of a disposable plastic drink container discharged from the home or the like, can simply treat collected plastic containers in a factory regardless of whether lid films are attached thereto, thereby increasing workability of recycling companies and reducing an economic burden thereof, and allows straws to be inserted thereinto by being easily torn when a drinker removes the lid film from the plastic container or sticks a straw into the surface of the lid film while the lid film is strongly brought into close contact with the inlet of the plastic container, thereby enabling the drinker to easily drink beverages accommodated in the plastic container. The plastic container lid film comprises: a base film (10) bonded to the inlet of the plastic container to seal beverages accommodated therein; and a porous film (20) formed on the base film (10).

Description

A lead film of plastic containers with a well-selected straw}

The present invention relates to a plastic container lead film in which straws are well inserted, and more specifically, an aluminum lid used for sealing a disposable plastic container is replaced with a film material that can be recycled, such as a plastic container, and discharged at home, etc. The recycling efficiency of plastic disposable beverage containers is improved, and the collected plastic containers can be easily processed at the factory regardless of whether or not the lid is attached, improving workability and reducing the economic burden of recycling companies. While maintaining firmly in close contact with the inlet of the plastic container, the drinker removes the lid from the plastic container or inserts a straw into the surface of the lid so that the straw can be easily torn when used. It relates to a plastic container lead film that a new type of straw that can be easily consumed is well inserted.

In general, coffee beverages with milk components or beverages such as yogurt manufactured by fermenting milk are filled in a cup-shaped container mainly made of plastic, and then the inlet is sealed with a lid made of aluminum foil. It is produced and sold.

In addition, as shown in FIG. 3, in the conventional aluminum lid, a printed layer 2 on which a trademark or product manual is printed is formed on one side of an aluminum foil 1 having a thickness of 40 to 50 μm, A moisture-proof coating layer (3) is coated on the layer (2), and an adhesive layer (4) is formed on the other side of the aluminum foil (1) to obtain the four-layer lid material and suitable for the size of the beverage inlet of the plastic container to be bonded. It is manufactured by punching and cutting to size. Here, the moisture-proof coating layer (3) is for moisture-proof of the filling, is coated with a thickness of 2 to 3 μm with synthetic resin, and the adhesive (4) layer is to seal the plastic container by making it adhere to the injection port of the plastic container. It is formed in thickness.

Particularly, the aluminum foil used as the base material uses aluminum as a base material, and when the lid is manufactured as a single sheet, it prevents curling (bending) in the process of being put into an automated facility, so it is stably inserted, and it is difficult to insert a straw. It is easy and is mainly used because of its excellent oxygen and moisture barrier properties.

On the other hand, in recent years, in order to develop industrial technology and save resources, these aluminum lids are separated from plastic containers in the recycling process and collected separately or processed separately using a separate recycling process, and then plastic containers are recycled.

However, the process of separating the aluminum lid from the plastic container and collecting it is very difficult, and in particular, the aluminum lid is the main cause of abrasion of the shredder blades of the recycling plant, which causes the shredder to fail, and to prevent such a breakdown of the shredder. In the recycling plant, additional costs, such as installing additional facilities for separating the aluminum lid, are incurred, and recycling companies are also avoiding recycling of plastic containers, so there is a problem in that recycling of plastic containers is not performed smoothly.

Moreover, according to the current Ministry of Environment press release, in order to increase the recycling rate of plastic containers, plastic container lids made of aluminum are currently demanding to increase the recycling rate of plastic containers by replacing plastic container lids with plastic. As the situation is being removed from the plastic container or additionally installed an expensive separation device, a solution to fundamentally solve this problem is urgently needed.

Registered Utility Model Publication No. 20-0431895 (Registration date: November 20, 2006) "Aluminum lid for plastic containers" Registered Utility Model Publication No. 20-0141787 (Registration date: January 5, 1999) "The lid of the enriched fermented milk container" Unexamined Patent Publication No. 10-2018-0009641 (Registration date: January 29, 2018) "Fermented food packaging container sealing lid" Registered Utility Model Publication No. 20-0203506 (Registration date: September 06, 2000) "Auxiliary lid for aluminum cans" Registered Patent Publication No. 10-1386546 (Registration date: April 11, 2014) "Method of manufacturing container side lid and the container side lid"

The present invention was conceived to solve the above problems, and an object of the present invention is to dispose of at home, etc. by replacing an aluminum lid used for sealing a disposable plastic container with a material that can be recycled, such as a plastic container. A new form that improves the recycling efficiency of disposable plastic beverage containers and reduces the economic burden and improves the workability of recycling companies as the collected plastic recycling containers can be easily processed at the factory regardless of whether the lid is attached or not. It is to provide a plastic container lead film in which the straw sticks well.

Another object of the present invention is to allow a drinker to remove the lid from the plastic container or insert a straw or the like on the surface of the lid so that the straw can be easily torn when used while maintaining the lid firmly in close contact with the injection port of the plastic container. It is to provide a plastic container lead film in which a new type of straw can be easily inserted through which the drinker can easily drink the beverage contained in the plastic container.

In addition, a plastic container lead with a new type of straw that can ensure stable input of the lid by preventing blocking of the lid that is ready to be put into the automation line in the form of being stacked on the top of the automated line filling beverages into plastic containers. It is in providing a film.

A plastic container lead film in which a straw is well inserted according to an embodiment of the technical idea of the present invention for achieving the above object, in the lead film for plastic containers,

The base film 10 is adhered to the inlet of a plastic container (not shown) to safely seal the beverage contained therein, and the micropores formed on the top of the base film 10 and mechanically formed on the surface. It can be achieved by a plastic container lid film, characterized in that it includes a porous film (20) that has been treated with a porosity to form voids.

The base film 10 is composed of a non-stretched or uniaxially stretched film such as CPP or PE with a barrier coating such as PVDC or PVA, or a non-stretched or uniaxially stretched film such as CPP or PE by deposition such as SIOX or ALOX. It is characterized by being composed of a non-stretched or uniaxially stretched film using a film imparting barrier properties or using a barrier material such as EVOH, PVDC, and NY.

The porous film 20 is mechanically formed on the surface of one stretched film selected from OPP (stretched polypropylene), PET (polyester), and NY (nylon) films, or laminated or laminated with such stretched films. It is characterized in that it is made of a material that is prevented from tearing and curling (warping) as a porous film formed with voids.

It further comprises an auxiliary porous film 30 formed on the lower surface of the base film 10 and made of an OPP film having heat-adhesive or easy-opening properties that are porous-treated to facilitate adhesion or opening to the injection port of the plastic container,

Here, it is characterized in that curling and blocking are prevented by the auxiliary porous film 30.

The plastic container lead film in which the straw is well inserted according to the present invention is formed of a material that can be recycled, such as a plastic container to which it is attached, thereby improving the recycling treatment efficiency of plastic disposable beverage containers discharged from homes, etc., and the collected plastic recycling container Regardless of whether the lid is attached or not, it can be easily processed at the factory, improving workability for recycling companies. It is possible to prevent failure of devices such as shredders, thereby reducing the economic burden.

In addition, the plastic container lead film, in which the straw is well inserted, maintains the basic effect of maintaining a firm contact with the injection hole of the plastic container, but when the drinker removes the lid from the plastic container or inserts a straw on the surface of the lid. By allowing the straw to be easily inserted without slipping by the porous upper film, there is an effect that the drinker can drink the beverage contained in the plastic container easily and safely without damage such as bending of the straw.

In addition, the plastic container lead film in which the straw is well inserted is prevented from blocking and curling (bending) through a porous treatment to form a plurality of micropores formed on the upper surface or the upper surface and the lower surface during the use of the film. The lead film can be provided in a form suitable for the production line, such as forming a roll type and using it or forming it into a sheet having a size similar to the injection port of a plastic container through punching or punching, and using it in equipment. There is an effect of actually improving the productivity of the beverage production line through the accurate input of the lead film.

1 is a perspective view of a plastic container lead film in which a straw is well inserted according to a first embodiment of the present invention
2 is a perspective view of a plastic container lid film in which a straw is well inserted according to a second embodiment of the present invention
3 is a cross-sectional view of a conventional aluminum lead film for a plastic container

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be modified in various ways and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only those effects, the scope of the present invention should not be understood as being limited thereto.

Meanwhile, the meanings of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when it is mentioned that a component is "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between the constituent elements, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to specified features, numbers, steps, actions, components, parts, or It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in a commonly used dictionary should be interpreted as having the meaning of the related technology in context, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

Now, a plastic container lead film in which a straw is well inserted according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 of the accompanying drawings is a perspective view of a plastic container lead film in which a straw is well inserted according to a first embodiment of the present invention.

As shown, the plastic container lead film (hereinafter, referred to as'lead film') 100 in which the straw is well inserted according to the present invention is a substrate film 10 adhered to the injection port of a plastic container (not shown). And, it includes a porous film 20 formed on the base film.

The base film 10 may be formed by PVDC coating on the surface of one high barrier film or non-stretched polypropylene (CASTING POLYPYLENE, CPP) film selected from polyvinylidene chloride film or EVOH film, and is preferably Specifically, a non-stretched or uniaxially stretched film such as CPP or PE is treated with a barrier coating such as PVDC or PVA, or a film that has been given barrier properties by deposition such as SIOX or ALOX, or a barrier property such as EVOH, PVDC, or NY Use of non-stretched or uniaxially-stretched film using the material makes it easy to recycle and keep straws well.

The porous film 20 is capable of being produced by a known technique, and on the surface of a stretched film such as OPP (soft polypropylene), PET (polyester), or NY (nylon) film, or laminated or laminated with such stretched film. Mechanically and physically, it is a porous film formed with pores of micropores, and it is easily torn, so that a straw can be easily inserted into the lead film 100, and a curling (bending) phenomenon in the process of being put into the facility It has a feature that can ensure continuous and stable input by preventing it.

The lead film 100 configured as described above forms a lead film using a material similar to a plastic container, so that the lead film can be crushed and recycled like a plastic container without having to separate the lead film when recycling the plastic container, thereby reducing the recycling rate of the plastic container. There are features that can be greatly improved and features that can guarantee a high recycling throughput through improved workability of a recycling plant.

Moreover, the lead film 100 configured as described above forms a lead film integrally formed by attaching the porous film 20 to the upper surface of the base film 10 in the form of a roll, and the lead film in the roll form is an automated line. It is used by heat bonding at the same time as punching.

In other words, in the automated line for beverage production, after filling the contents of a plastic container, a roll-type lead film is closely adhered to the inlet of the plastic container, and then heat-pressed to seal the inlet of the plastic container automatically. Done.

In addition, when a straw (not shown) is inserted into the lead film 100 in order to drink a beverage filled in a plastic container by the porous film 20 formed on the lead film 100, the surface of the porous film 20 There is a characteristic that the straw does not slip by the countless voids formed in the lead film 100 and can be stably and easily inserted through the lead film 100.

On the other hand, Figure 2 is a perspective view of a plastic container lead film in which straws are well inserted according to the second embodiment of the present invention. The characteristic of this embodiment is that the auxiliary porous film 30 is attached to the lower surface of the base film 10. There is this.

The auxiliary porous film 30 may be formed of a heat-adhesive OPP film that has been subjected to a porous treatment to facilitate adhesion or opening to an injection port of a plastic container.

That is, the auxiliary porous film 30 may be a film such as a porous heat-adhesive OPP or PET, and a heat-adhesive or easy-opening film is used to provide adhesiveness by bonding or coating.

Drinks filled inside the plastic container by improving the adhesion to the injection port of the plastic container while being able to easily insert the straw into the lead film 100 through the configuration of the auxiliary porous film 30 with a porous surface as described above. There are features that can be safely stored.

Moreover, the lead film 100 of the second embodiment is provided in production facilities by forming a porous film 20 and an auxiliary porous film 30 having a myriad of voids on the upper and lower surfaces of the base film 10. Porous films formed on the upper and lower surfaces of the lead film 100 even when the input form is a form that is injected as a single sheet in a state in which several lead films formed in a single sheet are stacked through punching or perforation rather than the previously described roll type. 20) and the auxiliary porous film 30 prevent curling (bending), and blocking that may occur by stacking multiple lead films 100 can be prevented, thereby ensuring a stable and continuous input of the lead film. There are features that can be.

That is, in the automated line for the production of beverages, after filling the contents of a plastic container, the inlet of the plastic container and the lead film 100 are heat-pressed to seal the inlet of the plastic container. In this case, the lead film 100 has a form in which a plurality of lead films 100 are stacked one by one into an injection port of a plastic container and thermally bonded.

At this time, the lead film 100 of the second embodiment has a shape in which a rough surface porous film 20 and an auxiliary porous film 30 are in close contact with each other on the upper and lower portions of the base film 10, so that the lead film ( 100) and the stacked film lid 100 is not blocked, so that the input of the lead film 100 is stably input without error, thereby preventing work defects due to blocking generated when the lead film 100 is input. It is characterized by improving the productivity of a practical beverage production line.

The plastic container lead film in which the straw is well inserted according to the present invention configured as described above is formed of a material that can be recycled, such as a plastic container with a lid, thereby improving the recycling treatment efficiency of plastic disposable beverage containers discharged from homes, etc. Regardless of whether or not a lid is attached, the collected plastic recycling container can be easily processed at the factory, improving the workability of recycling companies. It can prevent failure of devices such as shredders, thereby reducing the economic burden.

In addition, while maintaining the basic characteristics of maintaining a firm contact with the injection port of the plastic container, the drinker removes the lead film from the plastic container or inserts a straw on the surface of the lead film. By allowing the straw to be inserted easily without slipping, the drinker can drink the beverage contained in the plastic container easily and safely without any damage such as bending the straw.

In addition, the plastic container lid film in which the straw is well inserted is prevented from blocking through a porous treatment that forms a plurality of micropores formed on the upper surface or the upper surface and the lower surface during the use of the lid. Since the input of the film can be guaranteed, there is a characteristic of improving the productivity of the beverage production line.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been used herein, these are only used for the purpose of describing the present invention, and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: base film
20: porous film
30: auxiliary porous film

Claims (4)

In the lead film for plastic containers,
A base film 10 adhered to the injection port of a plastic container (not shown) to safely seal the beverage contained therein; And,
A plastic container lead film comprising a porous film 20 formed on the base film 10 and formed with pores of micropores mechanically formed on the surface thereof.
The method of claim 1,
The base film 10 is composed of a non-stretched or uniaxially stretched film such as CPP or PE with a barrier coating such as PVDC or PVA, or a non-stretched or uniaxially stretched film such as CPP or PE by deposition such as SIOX or ALOX. A plastic container lead film in which a straw sticks well, characterized in that it is composed of a non-stretched or uniaxially stretched film using a barrier-free film or a barrier material such as EVOH, PVDC, and NY.
The method of claim 1,
The porous film 20 is mechanically formed on the surface of one stretched film selected from OPP (stretched polypropylene), PET (polyester), and NY (nylon) films, or laminated or laminated with such stretched films. A plastic container lead film in which a straw is well inserted, characterized in that it is made of a material that prevents tearing and curling (bending) as a porous film with pores.
The method of claim 1,
It further comprises an auxiliary porous film 30 formed on the lower surface of the base film 10 and made of an OPP film having heat-adhesive or easy-opening properties that are porous-treated to facilitate adhesion or opening to the injection port of the plastic container,
Here, a plastic container lead film in which a straw is well inserted, characterized in that curling and blocking are prevented by the auxiliary porous film 30.

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