US20140341485A1 - Packaging container - Google Patents
Packaging container Download PDFInfo
- Publication number
- US20140341485A1 US20140341485A1 US14/344,506 US201214344506A US2014341485A1 US 20140341485 A1 US20140341485 A1 US 20140341485A1 US 201214344506 A US201214344506 A US 201214344506A US 2014341485 A1 US2014341485 A1 US 2014341485A1
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- US
- United States
- Prior art keywords
- auxiliary layer
- layer
- cover part
- packaging container
- base layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/22—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
- B65D29/02—Sacks with laminated or multiple walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
- B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
- B65D75/44—Individual packages cut from webs or tubes
- B65D75/46—Individual packages cut from webs or tubes containing articles
Definitions
- the present invention relates to a packaging container, and more particularly, to a packaging container capable of preventing reliability from deteriorating during storage of contents in a refrigerator or a freezer or heating of the packaging container together with contents packaged inside thereof.
- a lot of first processed products are packaged and distributed on the market in refrigerated or frozen states in order to promote convenience of customers.
- a user may easily eat by heating the packaged product with cooking equipment, such as a microwave.
- a packaging container becomes hard during a process of storing the packaged product in a refrigerator or a freezer, so that the packaging container is damaged from an external impact, thereby degrading a packaging quality, and in a case where the product and a packaging material are heated together in a state where the product is packaged, there may occur a problem in that the packaging material may be damaged or melt by heat.
- An object of the present invention is to provide a packaging container capable of . preventing reliability from deteriorating during storage of contents in a refrigerator or a freezer or heating of the packaging container together with contents packaged inside thereof.
- a packaging container heated together with contents accommodated inside therein includes: a first cover part having a packaging area and a sealing area surrounding the packaging area; and a second cover part facing the first cover part and coupled to the first cover part in the sealing area.
- each of the first cover part and the second cover part includes: a base layer, a first auxiliary layer formed on the base layer, and a second auxiliary layer formed on the base layer so as face the first auxiliary layer with the base layer interposed therebetween.
- the base layer is implemented by a Casted Polypropylene (CPP) film
- the first auxiliary layer is implemented by the CPP film including Epoxidised Butadiene Rubber (EBR)
- the second auxiliary layer includes the same material as that of the first auxiliary layer.
- CPP Casted Polypropylene
- EBR Epoxidised Butadiene Rubber
- the packaging container includes the base layer and the auxiliary layers formed with the base layer interposed therebetween, so that it is possible to prevent the packaging container from becoming hard and being damaged from an external impact during a process of storing the packaging container in a freezer/refrigerator, and prevent the packaging container from being melt or damaged during a process of heating the packaging container together with a packaged product, thereby improving reliability of the packaging container.
- FIG. 1 is a perspective view of a packaging container according to an exemplary embodiment of the present invention.
- FIG. 2 is a cross-sectional view illustrating a surface taken along line I-I′ of FIG. 1 .
- FIG. 3 is a cross-sectional view of a packaging container according to another exemplary embodiment of the present invention.
- FIG. 1 is a perspective view of a packaging container according to an exemplary embodiment of the present invention
- FIG. 2 is a cross-sectional view illustrating a surface taken along line I-I′ of FIG. 1 .
- the packaging container 100 accommodates contents 5 inside therein, and packages the contents 5 to be sealed from the outside.
- the packaging container 100 may be used for packaging the contents 5 , such as frozen food or refrigerated food inside therein, and the packaging container 100 may be heated together with the contents 5 in order for a user to eat the contents 5 .
- a more detailed structure of the packaging container 100 will be described below.
- the container 100 includes a first cover part 10 and a second cover part 50 .
- the first cover part 10 has a packaging area PA and a sealing area SA surrounding the packaging area PA. Further, the second cover part 50 faces the first cover part 10 , and is coupled to the first cover part 10 in the sealing area SA.
- the packaging area PA may be defined along a circumference of the first cover part 10 , and thus the second cover part 50 is coupled to the first cover part 10 along the circumference of the first cover part 10 .
- the first and second cover parts 10 and 50 are not coupled to each other in the packaging area SA, so that it is possible to provide an accommodation space for accommodating the contents 5 between the first and second cover parts 10 and 50 so as to correspond to the packaging area SA, and the contents 5 may be accommodated in the packaging area PA and be sealed from the outside by the first and second cover parts 10 and 50 in the sealing area SA to be packaged.
- the first cover part 10 includes a first base layer 12 , a first auxiliary layer 14 , a second auxiliary layer 16 , and a first surface layer 18 .
- the first base layer 12 is a layer serving as a base of the first cover part 10 , and may be formed to have a larger thickness than that of the first auxiliary layer 14 or the second auxiliary layer 16 . Further, the first base layer 12 may be implemented by a Casted Polypropylene (CPP) film.
- CPP Casted Polypropylene
- the first auxiliary layer 14 may be formed on a lower surface of the first base layer 12 , and a thickness T 1 of the first auxiliary layer 14 may be about 80 ⁇ m to about 100 ⁇ m. Further, the first auxiliary layer 14 may be implemented by a CPP film including Epoxidised Butadiene Rubber (EBR). Accordingly, the first auxiliary layer 14 is formed, thereby improving adhesive force between the first surface layer 18 and the first base layer 12 , and preventing the first base layer 12 from being hard and an appearance of the first base layer 12 from being damaged from an impact during a process of storing a product in a freezer or a refrigerator.
- EBR Epoxidised Butadiene Rubber
- the second auxiliary layer 16 may be formed on an upper surface of the first base layer 12 , and may be formed to have the same thickness as that of the first auxiliary layer 14 . Further, the second auxiliary layer 16 may include the same material as that of the first auxiliary layer 14 , thereby preventing the first base layer 12 from being hard and the appearance of the first base layer 12 from being damaged from an impact when the packaging container 100 is stored in a freezer or a refrigerator.
- the CPP film implementing the first base layer 12 , the first auxiliary layer 14 , and the second auxiliary layer 16 may include a block co-polymer copolymerized with olefin, and the block co-polymer may have a melt index (230° C., 2.16 kg) of 3.0 to 3.7 in a resin state.
- the first base layer 12 , the first auxiliary layer 14 , and the second auxiliary layer 16 includes the block co-polymer as a main component, so that a melting point of each of the layers may be 160° C. to 165° C. Accordingly, sealing strength between the first base layer 12 and the first auxiliary layer 14 and sealing strength between the first base layer 12 and the second auxiliary layer 16 may be maintained to be 3.0 kgf to 3.8 kgf based on a width of 15 mm and a length of 50 mm at about 80° C. to about 155° C. lower than the melting point.
- the packaging container 100 is heated together with the contents 5 accommodated inside thereof in a temperature range lower than about 155° C.
- the first base layer 12 , and the first and second auxiliary layers 14 and 16 may be prevented from being melt by heat, and the first and second auxiliary layers 14 and 16 may be prevented from being separated from the first base layer 12 .
- the first surface layer 18 is formed on the first auxiliary layer 14 so as to face the first base layer 12 with the first auxiliary layer 14 interposed therebetween.
- the first surface layer 18 in the first cover part 10 is a layer exposed to the outside, and information of the contents 5 may be printed on the first surface layer 18 .
- the first surface layer 18 may be implemented by any one of a nylon film, an Oriented Polypropylene (OPP) film, and a Polyethylene Terephtalate (PET) film.
- OPP Oriented Polypropylene
- PET Polyethylene Terephtalate
- the second cover part 50 includes a second base layer 52 , a third auxiliary layer 54 , a fourth auxiliary layer 56 , and a second surface layer 58 .
- the second cover part 50 has a structure symmetric to that of the first cover part 10 based on an internal side of the packaging container 100 . More particularly, structures and functions of the second base layer 52 , the third auxiliary layer 54 , the fourth auxiliary layer 56 , and the second surface layer 58 one-to-one correspond to the structure and the functions of the first base layer 12 , the first auxiliary layer 14 , the second auxiliary layer 16 , and a first surface layer 18 . Accordingly, descriptions of the constituent elements included in the second cover part 50 will be omitted.
- FIG. 3 is a cross-sectional view of a packaging container according to another exemplary embodiment of the present invention.
- a packaging container 101 illustrated in FIG. 3 includes the same elements as those of the packaging container ( 100 , see FIGS. 1 and 2 ) illustrated in FIGS. 1 and 2 . Accordingly, in describing the packaging container 101 , the elements described with reference to FIGS. 1 and 2 are denoted by the reference numerals, and overlapping descriptions of the elements will be omitted.
- the packaging container 101 includes a first cover part 11 and a second cover part 51 .
- the first cover part 11 includes a first base layer 12 , a first auxiliary layer 14 , a second auxiliary layer 16 , and a first surface layer 18
- the second cover part 51 includes a second base layer 52 , a third auxiliary layer 55 , a fourth auxiliary layer 57 , and a second surface layer 58 .
- the first to fourth auxiliary layers 15 , 17 , 55 , and 57 may have different compositions from the first to fourth auxiliary layers (reference numerals 14 , 16 , 54 , and 56 of FIG. 2 ) described with reference to FIG. 2 .
- the first to fourth auxiliary layers 15 , 17 , 55 , and 57 may include the same material, and a material of the first auxiliary layer 15 among the first to fourth auxiliary layers 15 , 17 , 55 , and 57 will be described below as an example.
- the first auxiliary layer 15 may be implemented by a CPP film containing EBR and further containing metallocene polyethylene (m-PE).
- m-PE metallocene polyethylene
- sealing strength of the first auxiliary layer 15 may be further improved by approximately 0.5 kgf based on a width of 15 mm and a length of 50 mm. Accordingly, an effect of preventing the first auxiliary layer 15 from being hard according to an external impact or an external temperature and an appearance of the auxiliary layer 15 from being damaged may be further improved.
- First cover part 12 First base layer 14: First auxiliary layer 16: Second auxiliary layer 18: First surface layer 50: Second cover part 52: Second base layer 54: Third auxiliary layer 56: Fourth auxiliary layer 58: Second surface layer 100: Packaging container
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Laminated Bodies (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
- This application is a national phase of International Application No. PCT/KR2012/007272, filed Sep. 11, 2012, which claims the benefit of Korean Application No. 10-2011-0094634, filed Sep. 20, 2011, in the Korean Intellectual Property Office. All disclosures of the document(s) named above are incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to a packaging container, and more particularly, to a packaging container capable of preventing reliability from deteriorating during storage of contents in a refrigerator or a freezer or heating of the packaging container together with contents packaged inside thereof.
- 2. Description of the Related Art
- According to a change in a pattern of dietary life, a lot of first processed products are packaged and distributed on the market in refrigerated or frozen states in order to promote convenience of customers. A user may easily eat by heating the packaged product with cooking equipment, such as a microwave.
- In the meantime, a packaging container becomes hard during a process of storing the packaged product in a refrigerator or a freezer, so that the packaging container is damaged from an external impact, thereby degrading a packaging quality, and in a case where the product and a packaging material are heated together in a state where the product is packaged, there may occur a problem in that the packaging material may be damaged or melt by heat.
- An object of the present invention is to provide a packaging container capable of . preventing reliability from deteriorating during storage of contents in a refrigerator or a freezer or heating of the packaging container together with contents packaged inside thereof.
- In order to achieve the object of the present invention, a packaging container heated together with contents accommodated inside therein includes: a first cover part having a packaging area and a sealing area surrounding the packaging area; and a second cover part facing the first cover part and coupled to the first cover part in the sealing area.
- Further, each of the first cover part and the second cover part includes: a base layer, a first auxiliary layer formed on the base layer, and a second auxiliary layer formed on the base layer so as face the first auxiliary layer with the base layer interposed therebetween.
- The base layer is implemented by a Casted Polypropylene (CPP) film, the first auxiliary layer is implemented by the CPP film including Epoxidised Butadiene Rubber (EBR), and the second auxiliary layer includes the same material as that of the first auxiliary layer.
- According to the present invention, the packaging container includes the base layer and the auxiliary layers formed with the base layer interposed therebetween, so that it is possible to prevent the packaging container from becoming hard and being damaged from an external impact during a process of storing the packaging container in a freezer/refrigerator, and prevent the packaging container from being melt or damaged during a process of heating the packaging container together with a packaged product, thereby improving reliability of the packaging container.
- Additional aspects and/or advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
- These and/or other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
-
FIG. 1 is a perspective view of a packaging container according to an exemplary embodiment of the present invention. -
FIG. 2 is a cross-sectional view illustrating a surface taken along line I-I′ ofFIG. 1 . -
FIG. 3 is a cross-sectional view of a packaging container according to another exemplary embodiment of the present invention. - Hereinafter, an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings. An object, a characteristic, and an effect of the present invention will be easily understood through the exemplary embodiment related to the accompanying drawings. However, the present invention is not limited to the exemplary embodiments described herein, and may be applied and modified in various forms. Rather, the exemplary embodiments below are provided so as to make the technical spirit disclosed by the present invention be more clear, and further, sufficiently deliver the technical spirit of the present invention to those skilled in the art. Accordingly, it shall not be construed that the claims of the present invention are limited to the exemplary embodiments described below. In the meantime, the drawings suggested together with the exemplary embodiment below are somewhat simplified or exaggerated, and like reference numerals in the drawings designate like elements.
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FIG. 1 is a perspective view of a packaging container according to an exemplary embodiment of the present invention, andFIG. 2 is a cross-sectional view illustrating a surface taken along line I-I′ ofFIG. 1 . - Referring to
FIGS. 1 and 2 , thepackaging container 100 accommodatescontents 5 inside therein, and packages thecontents 5 to be sealed from the outside. In the exemplary embodiment of the present invention, thepackaging container 100 may be used for packaging thecontents 5, such as frozen food or refrigerated food inside therein, and thepackaging container 100 may be heated together with thecontents 5 in order for a user to eat thecontents 5. A more detailed structure of thepackaging container 100 will be described below. - The
container 100 includes afirst cover part 10 and asecond cover part 50. Thefirst cover part 10 has a packaging area PA and a sealing area SA surrounding the packaging area PA. Further, thesecond cover part 50 faces thefirst cover part 10, and is coupled to thefirst cover part 10 in the sealing area SA. - In the exemplary embodiment of the present invention, the packaging area PA may be defined along a circumference of the
first cover part 10, and thus thesecond cover part 50 is coupled to thefirst cover part 10 along the circumference of thefirst cover part 10. Further, the first andsecond cover parts contents 5 between the first andsecond cover parts contents 5 may be accommodated in the packaging area PA and be sealed from the outside by the first andsecond cover parts - In the meantime, the
first cover part 10 includes afirst base layer 12, a first auxiliary layer 14, a secondauxiliary layer 16, and afirst surface layer 18. - The
first base layer 12 is a layer serving as a base of thefirst cover part 10, and may be formed to have a larger thickness than that of the first auxiliary layer 14 or the secondauxiliary layer 16. Further, thefirst base layer 12 may be implemented by a Casted Polypropylene (CPP) film. - The first auxiliary layer 14 may be formed on a lower surface of the
first base layer 12, and a thickness T1 of the first auxiliary layer 14 may be about 80 μm to about 100 μm. Further, the first auxiliary layer 14 may be implemented by a CPP film including Epoxidised Butadiene Rubber (EBR). Accordingly, the first auxiliary layer 14 is formed, thereby improving adhesive force between thefirst surface layer 18 and thefirst base layer 12, and preventing thefirst base layer 12 from being hard and an appearance of thefirst base layer 12 from being damaged from an impact during a process of storing a product in a freezer or a refrigerator. - The second
auxiliary layer 16 may be formed on an upper surface of thefirst base layer 12, and may be formed to have the same thickness as that of the first auxiliary layer 14. Further, the secondauxiliary layer 16 may include the same material as that of the first auxiliary layer 14, thereby preventing thefirst base layer 12 from being hard and the appearance of thefirst base layer 12 from being damaged from an impact when thepackaging container 100 is stored in a freezer or a refrigerator. - In the meantime, in the exemplary embodiment of the present invention, the CPP film implementing the
first base layer 12, the first auxiliary layer 14, and the secondauxiliary layer 16 may include a block co-polymer copolymerized with olefin, and the block co-polymer may have a melt index (230° C., 2.16 kg) of 3.0 to 3.7 in a resin state. - Further, in the exemplary embodiment of the present invention, the
first base layer 12, the first auxiliary layer 14, and the secondauxiliary layer 16 includes the block co-polymer as a main component, so that a melting point of each of the layers may be 160° C. to 165° C. Accordingly, sealing strength between thefirst base layer 12 and the first auxiliary layer 14 and sealing strength between thefirst base layer 12 and the secondauxiliary layer 16 may be maintained to be 3.0 kgf to 3.8 kgf based on a width of 15 mm and a length of 50 mm at about 80° C. to about 155° C. lower than the melting point. Accordingly, even though thepackaging container 100 is heated together with thecontents 5 accommodated inside thereof in a temperature range lower than about 155° C., thefirst base layer 12, and the first and secondauxiliary layers 14 and 16 may be prevented from being melt by heat, and the first and secondauxiliary layers 14 and 16 may be prevented from being separated from thefirst base layer 12. - The
first surface layer 18 is formed on the first auxiliary layer 14 so as to face thefirst base layer 12 with the first auxiliary layer 14 interposed therebetween. Thefirst surface layer 18 in thefirst cover part 10 is a layer exposed to the outside, and information of thecontents 5 may be printed on thefirst surface layer 18. - In the exemplary embodiment of the present invention, the
first surface layer 18 may be implemented by any one of a nylon film, an Oriented Polypropylene (OPP) film, and a Polyethylene Terephtalate (PET) film. - The
second cover part 50 includes asecond base layer 52, a thirdauxiliary layer 54, a fourthauxiliary layer 56, and asecond surface layer 58. In the meantime, thesecond cover part 50 has a structure symmetric to that of thefirst cover part 10 based on an internal side of thepackaging container 100. More particularly, structures and functions of thesecond base layer 52, the thirdauxiliary layer 54, the fourthauxiliary layer 56, and thesecond surface layer 58 one-to-one correspond to the structure and the functions of thefirst base layer 12, the first auxiliary layer 14, the secondauxiliary layer 16, and afirst surface layer 18. Accordingly, descriptions of the constituent elements included in thesecond cover part 50 will be omitted. -
FIG. 3 is a cross-sectional view of a packaging container according to another exemplary embodiment of the present invention. In the meantime, except for the first to fourthauxiliary layers packaging container 101 illustrated inFIG. 3 includes the same elements as those of the packaging container (100, seeFIGS. 1 and 2 ) illustrated inFIGS. 1 and 2 . Accordingly, in describing thepackaging container 101, the elements described with reference toFIGS. 1 and 2 are denoted by the reference numerals, and overlapping descriptions of the elements will be omitted. - Referring to
FIG. 3 , thepackaging container 101 includes a first cover part 11 and asecond cover part 51. Further, the first cover part 11 includes afirst base layer 12, a first auxiliary layer 14, a secondauxiliary layer 16, and afirst surface layer 18, and thesecond cover part 51 includes asecond base layer 52, a thirdauxiliary layer 55, a fourthauxiliary layer 57, and asecond surface layer 58. - In the exemplary embodiment of the present invention illustrated in
FIG. 3 , the first to fourthauxiliary layers reference numerals FIG. 2 ) described with reference toFIG. 2 . - In the exemplary embodiment of the present invention illustrated in
FIG. 3 , the first to fourthauxiliary layers auxiliary layers - The first auxiliary layer 15 may be implemented by a CPP film containing EBR and further containing metallocene polyethylene (m-PE). When the first auxiliary layer 15 includes further m-PE, sealing strength of the first auxiliary layer 15 may be further improved by approximately 0.5 kgf based on a width of 15 mm and a length of 50 mm. Accordingly, an effect of preventing the first auxiliary layer 15 from being hard according to an external impact or an external temperature and an appearance of the auxiliary layer 15 from being damaged may be further improved.
- The present invention has been described with reference to the exemplary emboidment, but those skilled in the art will understand that the presnet invention may be variously modified and changed within the range without departing from the spirit and the area of the presnet invention deifined in the accompanying claims.
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5: Contents 10: First cover part 12: First base layer 14: First auxiliary layer 16: Second auxiliary layer 18: First surface layer 50: Second cover part 52: Second base layer 54: Third auxiliary layer 56: Fourth auxiliary layer 58: Second surface layer 100: Packaging container
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020110094634A KR101251165B1 (en) | 2011-09-20 | 2011-09-20 | Package |
KR10-2011-0094634 | 2011-09-20 | ||
PCT/KR2012/007272 WO2013042892A2 (en) | 2011-09-20 | 2012-09-11 | Packaging container |
Publications (1)
Publication Number | Publication Date |
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US20140341485A1 true US20140341485A1 (en) | 2014-11-20 |
Family
ID=47914989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/344,506 Abandoned US20140341485A1 (en) | 2011-09-20 | 2012-09-11 | Packaging container |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140341485A1 (en) |
EP (1) | EP2759487B1 (en) |
KR (1) | KR101251165B1 (en) |
CN (1) | CN103813964B (en) |
WO (1) | WO2013042892A2 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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Also Published As
Publication number | Publication date |
---|---|
KR101251165B1 (en) | 2013-04-04 |
KR20130030994A (en) | 2013-03-28 |
EP2759487B1 (en) | 2019-03-13 |
CN103813964B (en) | 2016-09-07 |
WO2013042892A2 (en) | 2013-03-28 |
CN103813964A (en) | 2014-05-21 |
WO2013042892A3 (en) | 2013-07-04 |
EP2759487A2 (en) | 2014-07-30 |
EP2759487A4 (en) | 2015-04-01 |
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