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EP4501812A1 - Improved structure of paper cups - Google Patents

Improved structure of paper cups Download PDF

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Publication number
EP4501812A1
EP4501812A1 EP23188674.8A EP23188674A EP4501812A1 EP 4501812 A1 EP4501812 A1 EP 4501812A1 EP 23188674 A EP23188674 A EP 23188674A EP 4501812 A1 EP4501812 A1 EP 4501812A1
Authority
EP
European Patent Office
Prior art keywords
plastic fastener
paper
paper cup
cup
curled edge
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.)
Pending
Application number
EP23188674.8A
Other languages
German (de)
French (fr)
Inventor
Tzer-Huang Kuo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP23188674.8A priority Critical patent/EP4501812A1/en
Publication of EP4501812A1 publication Critical patent/EP4501812A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3865—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers
    • B65D81/3869—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers formed with double walls, i.e. hollow
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3865—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers
    • B65D81/3874—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation drinking cups or like containers formed of different materials, e.g. laminated or foam filling between 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling

Definitions

  • the present invention relates generally to the structure of paper cups, and more particularly to an improved structure of a paper cup which forms a perfect plane at the mouth of the cup and is convenient for quick separation and disposal after use.
  • Disposable containers are commonly made of plastic or paper materials. Although plastic containers with a single-layer structure have the advantages of easy manufacture, lower cost and better leak resistance, they are not suitable for heat preservation. The manufacturing of paper containers requires more complex process and higher cost, but their leakproof effect and structural strength are not as good as that of plastic containers. Therefore, in order to obtain the desired insulation effect, it is necessary to adopt a multi-layer or thicker design, or add a foam insulation layer, that may lead to an extremely high cost.
  • the main object of the present invention is to provide an improved structure of paper cups, a plastic fastener is combined with a paper cup, and the plastic fastener forms an extension piece at the curled edge of the cup mouth, or the body of the paper cup is provided with an easy-to-tear strip, so as to achieve the effect of easy separation and recycling.
  • the inventor has designed an improved structure of paper cups, including: A plastic fastener and a paper cup; the plastic fastener and the mouth of the paper cup are formed with an outwards curled edge respectively, particularly, the curled edge of the plastic fastener is a little larger than the paper cup and covers the curled edge of the paper cup, and the top surface of the curled edge forms a flat surface, so that the plastic fastener is integrated with the paper cup through the curled edge, and the plastic fastener is a plane on the top surface of the cup mouth, and the lower edge of the plastic fastener extends downwards to the bottom surface of the paper cup to form an airtight space, the curled edge of the plastic fastener is provided with an extension piece, and the lower edge of the paper cup is provided with some small holes.
  • the extension piece on the curled edge at the mouth of the film plastic inner cup can be formed in any geometric shape, including but not limited to: Any of teardrop, convex, circular, polygonal and rectangular.
  • an easy-to-tear strip is provided on the surface of the body of the paper cup.
  • the plastic fastener can be made of any one or a composite of Polypropylene (PP), Polystyrene (PS), Poly Lactic Acid (PLA), Polyethylene (PE), Polyethylene Terephthalate (PET).
  • PP Polypropylene
  • PS Polystyrene
  • PLA Poly Lactic Acid
  • PE Polyethylene
  • PET Polyethylene Terephthalate
  • the paper cup is made of recycled paper.
  • the improved structure of paper cups (1) comprises: a plastic fastener (2) and a paper cup (3); wherein the plastic fastener (2) and the mouth of the paper cup (3) are formed with an outwards curled edge (21, 31) respectively, the curled edge of the plastic fastener (2) is a little larger than the curled edge (31) of paper cup (3) and covers the curled edge (31) of the paper cup (3), so that the plastic fastener (2) is integrated with the paper cup (3) through the curled edges (21, 31), and the top surface of the curled edge (21) of the plastic fastener (2) forms a flat surface (F), the lower edge of the plastic fastener (2) extends downwards as a plane (20) to the bottom surface of the paper cup (3) to form an airtight space, the curled edge (21) of the plastic fastener (2) is formed with an extension piece (22) in any geometric shape towards the
  • the ratio of the paper to plastic as raw materials of the improved structure of paper cups (1) is 7: 3 (i.e. the weight percentage is 70%: 30%), so that the paper cup (3) has better structural strength; and the proportion of paper is relatively high, so the recycled paper is selected as the best raw material, both environmental protection and cost are considered.
  • the part in contact with the liquid is a plastic fastener (2), so it is unnecessary to worry about food hygiene or safety.
  • plastic fastener (2) including but not limited to: Any one or a composite of Polypropylene (PP), Polystyrene (PS), Poly Lactic Acid (PLA), Polyethylene (PE), Polyethylene Terephthalate (PET).
  • PP Polypropylene
  • PS Polystyrene
  • PLA Poly Lactic Acid
  • PE Polyethylene
  • PET Polyethylene Terephthalate
  • the extension piece (22) on the curled edge (21) of the plastic fastener (2) can be formed in any geometric shape, including but not limited to: teardrop-shaped, convex, circular, polygonal and rectangular.
  • the curled edge (21) of the plastic fastener (2) is unrolled by automatic processing before the paper cup (3) is inserted in, so that the curled edge (21) of the plastic fastener (2) covers the curled edge (31) of the paper cup (3), which are superimposed on each other, and the plane (F) formed by the plastic fastener (2) can completely avoid the liquid leak and residual stains resulted from the height difference of the mouth of a paper cup (3).
  • the small holes (32) in the circumferential surface near the lower edge of the paper cup (3) can discharge hot air timely and conveniently.
  • the improved structure of paper cups (1) of the present invention directly combines the plastic and paper materials without gluing, the assembly is performed quickly.
  • the plastic fastener (2) can be easily and quickly separated from the paper cup (3) by using the extension piece (22), contributing to garbage sorting and recycling.
  • FIGs. 7 ⁇ 9(A)(B)(C) disclose the improved structure of paper cups in a preferred embodiment of the present invention, including : A plastic fastener (2) and a paper cup (3); wherein the plastic fastener (2) and the mouth of the paper cup (3) are formed with an outwards curled edge (21, 31) respectively, the curled edge (21) of the plastic fastener (2) is a little larger than the curled edge (31) of paper cup (3) and covers the curled edge (31) of the paper cup (3), so that the plastic fastener (2) is integrated with the paper cup (3) through the curled edges (21, 31), and the top surface of the curled edge (21) of the plastic fastener (2) forms a flat surface (F), the lower edge of the plastic fastener (2) extends downwards as a plane to the bottom surface of the paper cup (3) to form an airtight space, the curled edge (21) of the plastic fastener (2) is formed with an extension piece (22) in any geometric shape towards the bottom, the circumferential surface of the lower edge

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

The present invention provides an improved structure of paper cups, including a plastic fastener and a paper cup, the plastic fastener and the mouth of the paper cup are formed with an outwards curled edge respectively, the curled edge of the plastic fastener is a little larger than the curled edge of the paper cup, and covers the curled edge of the outer paper cup, so that the plastic fastener is integrated with the paper cup through the curled edges, and the plastic fastener is a plane on the top surface of the cup mouth, and the lower edge of the plastic fastener extends downwards to the bottom surface of the paper cup to form an airtight space; the curled edge of the plastic fastener is provided with an extension piece, so that the plastic fastener and the paper cup can be separated quickly and recycled; the lower edge of the paper cup is provided with some small holes for dissipating the heat of hot drinks.

Description

    BACKGROUND OF INVENTION 1. Field of the Invention
  • The present invention relates generally to the structure of paper cups, and more particularly to an improved structure of a paper cup which forms a perfect plane at the mouth of the cup and is convenient for quick separation and disposal after use.
    • 2. Description of Related Art
  • Disposable containers are commonly made of plastic or paper materials. Although plastic containers with a single-layer structure have the advantages of easy manufacture, lower cost and better leak resistance, they are not suitable for heat preservation. The manufacturing of paper containers requires more complex process and higher cost, but their leakproof effect and structural strength are not as good as that of plastic containers. Therefore, in order to obtain the desired insulation effect, it is necessary to adopt a multi-layer or thicker design, or add a foam insulation layer, that may lead to an extremely high cost.
  • As shown in Fig. 1, it is known that the conventional paper cup (4) made of paper will naturally form a non-plane with a difference in height due to the overlapping of the curled edge at the cup mouth, that is an insurmountable difficulty in paper cups; this kind of paper cup is often prone to liquid leakage or residual stains due to the height difference of the cup mouth, which is likely to cause inconvenience to the users.
    • SUMMARY OF THE INVENTION
  • The main object of the present invention is to provide an improved structure of paper cups, a plastic fastener is combined with a paper cup, and the plastic fastener forms an extension piece at the curled edge of the cup mouth, or the body of the paper cup is provided with an easy-to-tear strip, so as to achieve the effect of easy separation and recycling. There are some small holes in the outer layer, which are convenient for releasing the heat of hot drinks.
  • In order to attain the above goal, the inventor has designed an improved structure of paper cups, including: A plastic fastener and a paper cup; the plastic fastener and the mouth of the paper cup are formed with an outwards curled edge respectively, particularly, the curled edge of the plastic fastener is a little larger than the paper cup and covers the curled edge of the paper cup, and the top surface of the curled edge forms a flat surface, so that the plastic fastener is integrated with the paper cup through the curled edge, and the plastic fastener is a plane on the top surface of the cup mouth, and the lower edge of the plastic fastener extends downwards to the bottom surface of the paper cup to form an airtight space, the curled edge of the plastic fastener is provided with an extension piece, and the lower edge of the paper cup is provided with some small holes.
  • In a preferred embodiment, the extension piece on the curled edge at the mouth of the film plastic inner cup can be formed in any geometric shape, including but not limited to: Any of teardrop, convex, circular, polygonal and rectangular.
  • In a preferred embodiment, an easy-to-tear strip is provided on the surface of the body of the paper cup.
  • In a preferred embodiment, the plastic fastener can be made of any one or a composite of Polypropylene (PP), Polystyrene (PS), Poly Lactic Acid (PLA), Polyethylene (PE), Polyethylene Terephthalate (PET).
  • In a preferred embodiment, the paper cup is made of recycled paper.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • Fig. 1 is the cross-section and partial enlarged view of a conventional paper cup.
    • Fig. 2 is the outside view of the improved structure of paper cups of the present invention.
    • Fig. 3 is the exploded view of the improved structure of paper cups of the present invention.
    • Fig. 4 is the partial cross-section and enlarged view of the improved structure of paper cups of the present invention.
    • Fig. 5 is the schematic diagram of service state of the improved structure of paper cups of the present invention.
    • Figs. 6 (A)(B)(C) are the exploded views of the improved structure of paper cups of the present invention.
    • Fig. 7 is the outside view of another structure of the improved structure of paper cups of the present invention.
    • Fig. 8 is the exploded view of another structure of the improved structure of paper cups of the present invention.
    • Figs. 9 (A)(B)(C) are the schematic diagrams of disassembly of another structure of the improved structure of paper cups of the present invention.
    DETAILED DESCRIPTION OF THE INVENTION
  • Please refer to Figs. 2∼4, which disclose the exploded, combined and partial cross-sectional structures of the improved structure of paper cups in a preferred embodiment of the present invention. The improved structure of paper cups (1) comprises: a plastic fastener (2) and a paper cup (3); wherein the plastic fastener (2) and the mouth of the paper cup (3) are formed with an outwards curled edge (21, 31) respectively, the curled edge of the plastic fastener (2) is a little larger than the curled edge (31) of paper cup (3) and covers the curled edge (31) of the paper cup (3), so that the plastic fastener (2) is integrated with the paper cup (3) through the curled edges (21, 31), and the top surface of the curled edge (21) of the plastic fastener (2) forms a flat surface (F), the lower edge of the plastic fastener (2) extends downwards as a plane (20) to the bottom surface of the paper cup (3) to form an airtight space, the curled edge (21) of the plastic fastener (2) is formed with an extension piece (22) in any geometric shape towards the bottom. In addition, the circumferential surface near the bottom edge of the paper cup (3) is provided with some small holes (32).
  • Based on environmental considerations, the ratio of the paper to plastic as raw materials of the improved structure of paper cups (1) is 7: 3 (i.e. the weight percentage is 70%: 30%), so that the paper cup (3) has better structural strength; and the proportion of paper is relatively high, so the recycled paper is selected as the best raw material, both environmental protection and cost are considered. In addition, the part in contact with the liquid is a plastic fastener (2), so it is unnecessary to worry about food hygiene or safety.
  • In terms of the materials of the said plastic fastener (2), including but not limited to: Any one or a composite of Polypropylene (PP), Polystyrene (PS), Poly Lactic Acid (PLA), Polyethylene (PE), Polyethylene Terephthalate (PET).
  • The extension piece (22) on the curled edge (21) of the plastic fastener (2) can be formed in any geometric shape, including but not limited to: teardrop-shaped, convex, circular, polygonal and rectangular.
  • In terms of assembly, the curled edge (21) of the plastic fastener (2) is unrolled by automatic processing before the paper cup (3) is inserted in, so that the curled edge (21) of the plastic fastener (2) covers the curled edge (31) of the paper cup (3), which are superimposed on each other, and the plane (F) formed by the plastic fastener (2) can completely avoid the liquid leak and residual stains resulted from the height difference of the mouth of a paper cup (3).
  • Please refer to Fig. 5, when a hot drink is loaded, such as coffee, the small holes (32) in the circumferential surface near the lower edge of the paper cup (3) can discharge hot air timely and conveniently.
  • Please refer to Figs. 6 (A)(B)(C), the improved structure of paper cups (1) of the present invention directly combines the plastic and paper materials without gluing, the assembly is performed quickly. To discard the improved structure of paper cups (1) after use, the plastic fastener (2) can be easily and quickly separated from the paper cup (3) by using the extension piece (22), contributing to garbage sorting and recycling.
  • Please refer to Figs. 7∼9(A)(B)(C), which disclose the improved structure of paper cups in a preferred embodiment of the present invention, including : A plastic fastener (2) and a paper cup (3); wherein the plastic fastener (2) and the mouth of the paper cup (3) are formed with an outwards curled edge (21, 31) respectively, the curled edge (21) of the plastic fastener (2) is a little larger than the curled edge (31) of paper cup (3) and covers the curled edge (31) of the paper cup (3), so that the plastic fastener (2) is integrated with the paper cup (3) through the curled edges (21, 31), and the top surface of the curled edge (21) of the plastic fastener (2) forms a flat surface (F), the lower edge of the plastic fastener (2) extends downwards as a plane to the bottom surface of the paper cup (3) to form an airtight space, the curled edge (21) of the plastic fastener (2) is formed with an extension piece (22) in any geometric shape towards the bottom, the circumferential surface of the lower edge of the paper cup (3) is provided with some small holes (32), and the circumferential surface of the paper cup (3) is provided with an easy-to-tear strip (33). When the improved structure of paper cups (1) is to be discarded after use, the paper cup (3) can be split easily by using the easy-to-tear strip (32) to take out the plastic fastener (2), contributing to waste sorting and recycling.

Claims (5)

  1. An improved structure of paper cups, including: a plastic fastener and a paper cup, wherein: the plastic fastener and the edge of the cup mouth are provided with an outwards curled edge respectively, the curled edge of the plastic fastener is larger than the curled edge of the paper cup and covers the curled edge of the paper cup; the curled edge of the plastic fastener provides an upward plane, features: there is an extension piece on the curled edge of the plastic fastener, which is used for separating the plastic fastener from the paper cup, and the lower edge of the paper cup is provided with some small holes for discharging hot air.
  2. The improved structure of paper cups defined in Claim 1, wherein the extension piece includes but not limited to the following shapes: teardrop-shaped, convex, circular, polygonal and rectangular.
  3. The improved structure of paper cups defined in Claim 1, wherein the surface of the paper cup is provided with an easy-to-tear strip.
  4. The improved structure of paper cups defined in any of Claims 1 to 3, wherein the plastic fastener can be made of any one or a composite of Polypropylene (PP), Polystyrene (PS), Poly Lactic Acid (PLA), Polyethylene (PE), Polyethylene Terephthalate (PET).
  5. The improved structure of paper cups defined in any of Claims 1 to 3, wherein the paper cup is made of recycled paper.
EP23188674.8A 2023-07-31 2023-07-31 Improved structure of paper cups Pending EP4501812A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23188674.8A EP4501812A1 (en) 2023-07-31 2023-07-31 Improved structure of paper cups

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23188674.8A EP4501812A1 (en) 2023-07-31 2023-07-31 Improved structure of paper cups

Publications (1)

Publication Number Publication Date
EP4501812A1 true EP4501812A1 (en) 2025-02-05

Family

ID=87550933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23188674.8A Pending EP4501812A1 (en) 2023-07-31 2023-07-31 Improved structure of paper cups

Country Status (1)

Country Link
EP (1) EP4501812A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025981A (en) * 1989-07-14 1991-06-25 Rundpack Ag Packing container
KR200344484Y1 (en) * 2003-10-20 2004-03-11 주식회사 에이스팩 A double cup
US7056563B2 (en) * 2003-04-04 2006-06-06 Weyerhaeuser Company Hot cup made from an insulating paperboard
US20100237069A1 (en) * 2009-01-20 2010-09-23 Helou Jr Elie Multi-layer container
US20100264201A1 (en) * 2003-11-26 2010-10-21 Stephen Alan Smith Two-piece insulated cup
EP2803598A1 (en) * 2013-05-13 2014-11-19 Tzer-Huang Guo Composite cup structures
US20170196383A1 (en) * 2016-01-11 2017-07-13 Taju Shoaga Doubled-layer disposable cup
US20180044084A1 (en) * 2016-08-14 2018-02-15 Anthony J. Orler Cellulose-based beverage cartridge
US20230150713A1 (en) * 2020-04-20 2023-05-18 Berry Superfos Randers A/S Package

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025981A (en) * 1989-07-14 1991-06-25 Rundpack Ag Packing container
US7056563B2 (en) * 2003-04-04 2006-06-06 Weyerhaeuser Company Hot cup made from an insulating paperboard
KR200344484Y1 (en) * 2003-10-20 2004-03-11 주식회사 에이스팩 A double cup
US20100264201A1 (en) * 2003-11-26 2010-10-21 Stephen Alan Smith Two-piece insulated cup
US20100237069A1 (en) * 2009-01-20 2010-09-23 Helou Jr Elie Multi-layer container
EP2803598A1 (en) * 2013-05-13 2014-11-19 Tzer-Huang Guo Composite cup structures
US20170196383A1 (en) * 2016-01-11 2017-07-13 Taju Shoaga Doubled-layer disposable cup
US20180044084A1 (en) * 2016-08-14 2018-02-15 Anthony J. Orler Cellulose-based beverage cartridge
US20230150713A1 (en) * 2020-04-20 2023-05-18 Berry Superfos Randers A/S Package

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