EP3987983A1 - Trinkhalm aus papier für einen getränkebehälter und getränkebehälter - Google Patents

Trinkhalm aus papier für einen getränkebehälter und getränkebehälter Download PDF

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Publication number
EP3987983A1
EP3987983A1 EP20202723.1A EP20202723A EP3987983A1 EP 3987983 A1 EP3987983 A1 EP 3987983A1 EP 20202723 A EP20202723 A EP 20202723A EP 3987983 A1 EP3987983 A1 EP 3987983A1
Authority
EP
European Patent Office
Prior art keywords
paper
drinking straw
compressed
tube
paper tube
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.)
Withdrawn
Application number
EP20202723.1A
Other languages
English (en)
French (fr)
Inventor
Andreas Korbmann
Beatus SCHEHL
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.)
Capri Sun AG
Original Assignee
Capri Sun AG
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 Capri Sun AG filed Critical Capri Sun AG
Priority to EP20202723.1A priority Critical patent/EP3987983A1/de
Priority to CN202180070865.3A priority patent/CN116390677A/zh
Priority to EP21785888.5A priority patent/EP4231879A1/de
Priority to PCT/EP2021/076902 priority patent/WO2022083995A1/en
Priority to US18/249,656 priority patent/US20230389738A1/en
Publication of EP3987983A1 publication Critical patent/EP3987983A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G2400/00—Details not otherwise provided for in A47G19/00-A47G23/16
    • A47G2400/10—Articles made from a particular material

Definitions

  • the invention refers to a paper drinking straw for a beverage container and to a beverage container.
  • Beverage containers with a penetration opening for inserting a drinking straw are known from the art.
  • the drinking straw may be made of plastic or of paper.
  • a drinking straw made of paper however, has a disadvantage that mechanical rigidness is not easy to achieve. This holds in particular in the case that the drinking straw is to open the penetration opening with a bevelled tip at one of its ends. The tip needs to be sufficiently sharp and rigid in order to penetrate the wall of the container.
  • the object of the present invention is to provide a paper drinking straw and a beverage container in combination with a paper drinking straw which provides for sufficient mechanical stiffness in order to allow a proper opening of a beverage container with such a paper drinking straw.
  • the object of the invention is met by the paper drinking straw with the features of claim 1 and the beverage container with the features of claim 12.
  • the paper of the paper tube is more compressed at the first end, which has a bevelled tip, compared to other portions of the paper tube. By having the paper more compressed it turns out to be mechanically more rigid. This is helpful in providing a sufficiently rigid and sharp bevelled tip for opening a beverage container.
  • the paper in other portion(s) may be not compressed at all or less compressed. Typically, paper is compressed to some extent by a paper production process where paper is passed through rollers such as compression rollers.
  • a higher degree of compression of paper is typically related to a higher density of the paper, which can be indicated in g/cm 3 .
  • the paper may comprise at least one of: wood fibres, bamboo fibres, bagasse fibres, seaweed fibres, fibres of banana plant, fibres of Abaca plant, synthetic fibres, polymer-based fibres, plastic fibres.
  • the paper of the paper tube may be, for example, more compressed at its first end compared to the second end of the paper tube. It may also be more compressed compared to other portions of the paper tube such as any portion between the compressed portion at the first end and the second end.
  • the paper of the paper tube is compressed such that it has a reduced wall thickness at its first end compared to its other portions. This allows to start with a paper tube with a uniform wall thickness and that by compressing the paper at the first end leads to an increased rigidness of the paper although it has a reduced wall thickness.
  • the part of the paper of the paper tube that is compressed at the first end may be only a portion of the circumference of the tube, or it may be the entire circumference of the tube. Compressing the entire circumference gives an enhanced mechanical stability and rigidness to the entire first end of the tube, while compressing only a portion of the circumference provides for an easier way to compress that portion and may be sufficient in order to obtain a sharp and rigid bevelled tip.
  • the compressed paper is provided only in a range of up to or less than 5%, 10% or 20% of the length of the paper tube.
  • the increased mechanical stability is provided only in the area starting at the first end and extending to some extent into the direction of the second end while the remainder of the paper tube remains flexible because of being uncompressed or less compressed.
  • Such flexibility can help in that the remainder of the tube may adapt to the shape of a flexible beverage container.
  • the beverage container may, for example, be a beverage carton, a foil bag or a stand up pouch, some flexibility of the major portion of the paper tube is helpful for the paper straw to adapt to the package it is attached to. Thereby, if the beverage container is deformed the paper drinking straw can adapt to the deformation at least to some extent, without breaking or otherwise being damaged.
  • the density of the compressed paper may be 1.2, 1.5, 2.0 or 3.0 times higher than in the other portions of the paper tube.
  • the density can be indicated in e.g. g/cm 3 .
  • These other portions may be the second end or any portion between the first end and the second end or between the compressed portion and the second end.
  • the thickness of the compressed paper may be less than 0.9, 0.8, 0.7, 0.6 or 0.5 times the thickness of the other portions of the paper tube such as the thickness at the thickest portion of the paper tube.
  • a portion of the compressed paper or all of the compressed paper may be impregnated with a moisture resistant agent such as silicate or sodium silicate.
  • a moisture resistant agent may further increase the stiffness of the bevelled tip or of the first end or the portion of compressed paper.
  • the paper straw is having a circular cross section along its entire length of the paper tube, or at least in the portion where the compressed paper is present.
  • a paper straw with a circular cross section is relatively easy to fabricate and at the same time it provides optimum resistance against being radially compressed in different radial directions. It may, however, also have a non-circular cross section along the entire length or at the first end or at the portion of compressed paper.
  • the paper tube comprises a winded paper layer.
  • a winding of a paper layer allows to fabricate paper tubes in a continuous manner such that the drinking straw can be cut from a continuous tube or a continuously fabricated tube.
  • a length may be cut, which is then itself cut into two paper drinking straws by a slanted cut providing both paper drinking straws with the bevelled tip.
  • the paper tube comprises a single kind of paper which can be provided in one single layer or several layers, which are attached to each other.
  • the paper tube comprises several layers of paper of which some of the layers are of a different kind. This allows, for example, to combine different kinds of paper in order to improve mechanical and moisture resistance of the paper drinking straw.
  • the different layers may have themselves different density due to their production, their composition etc.
  • the different layers may be joined by some adhesive.
  • each of those layers is more compressed at the first end compared to the corresponding layers of other portions of the paper tube.
  • the outermost layer of the paper tube is more compressed at the first end compared to the outermost layer of the paper tube of other portions of the paper tube.
  • the same can apply to the innermost and/or and any middle layer between an innermost and an outermost layer.
  • a beverage container is configured for receiving a liquid product such as a beverage, which is hermitically sealed by the beverage container.
  • the beverage container contains a penetration opening which is provided for introducing the paper straw as described above or below.
  • the penetration opening typically has a reduced mechanical stability compared to the remainder of the beverage container e.g. by having a reduced wall thickness or less layers of the material that makes up the beverage container or a weakened portion of the wall of the beverage container which can be prepared e.g. by laser perforation of the wall or of some layers of the wall of the beverage container.
  • the penetration opening can also be prepared by providing a through hole through the wall of the beverage container, which is closed by another material, such as a foil material, which can be opened with the paper drinking straw by perforating the other material.
  • the beverage inside of the beverage container can be consumed by a user through the paper drinking straw.
  • the beverage container may be a beverage carton, a foil bag or a stand up pouch.
  • a paper drinking straw 1 is shown in a cross section along a longitudinal axis of the paper drinking straw.
  • the paper drinking straw has a first end 3 and the second end 4 opposite to the first end.
  • the paper drinking straw 1 comprises a paper tube 2. At the first end 3, the paper tube is provided with a bevelled tip 7. In a portion 5 at the first end 3, the paper tube is having paper that is compressed. This can be seen by the more dense hatch and by the reduced wall thickness 9 compared to the wall thickness 8 in the portion (other portion) 6 which has a larger wall thickness 8.
  • the bevelled tip 7 is provided at the first end 3 by the paper drinking straw 1 having a slanted cut.
  • FIG 1b a view onto the paper drinking straw 1 from its first end 3 towards the second end 4 along a longitudinal axis of the paper drinking straw is shown.
  • the inner circumference 11 of the paper drinking straw 1 is shown together with its outer circumference 10.
  • the circumference of a step portion between the compressed and the other portions of the paper tube is shown with reference sign 12.
  • the paper that is compressed is provided on the entire circumference of the paper tube 2.
  • the portion 5 in which the paper is more compressed than in portion 6 extends along the length of the paper drinking straw starting at its first end 3 towards the second end 4.
  • the length L of the portion 5 is less than 5%, 10% or 20% of the length of the paper tube.
  • a length L may be several millimetres such as at least or not more than 5, 10 or 15 millimetres.
  • the transition from the compressed portion 5 to the other portion 6 is provided in a stepwise fashion as can be seen in figure 1a .
  • the transition may, however, also be continuous such that the wall thickness increases from the reduced wall thickness 9 to the larger wall thickness 8 over an extended portion along the length of the tube.
  • Such a continuous transition facilitates the insertion of the paper drinking straw in the beverage container as a stepwise transition may impede inserting the paper drinking straw trough the material of the penetration opening.
  • FIG 2 another embodiment of a paper drinking straw is shown.
  • the paper drinking straw 15 has a paper tube 2 with a first end 3 and an opposite second end 4.
  • a bevelled tip 7 is provided at the first end 3.
  • the paper of the paper tube 2 is more compressed than in the other portion 6.
  • the difference resides in that the change of thickness 8, 9 between the portion 5 and portion 6 is given by a step on the inner side of the tube 2, while in figure 1 the step is on the outer side of the paper tube 2.
  • the transition from the smaller thickness 9 to the larger wall thickness 8 is smooth.
  • the inner circumference 17 is provided by the inner circumference of the other portion 6, the inner circumference of the compressed paper in portion 5 is given by the reference numeral 18, and the outer circumference 16 is the outer circumference of both portions 5 and 6.
  • the three circumferences are concentric as can be seen in figure 2b and the circumference 18 of the compressed paper in the portion 5 is between the inner circumference 17 of the other portion 6 and the outer circumference 16 of portion 5 and 6.
  • the transition of the reduced thickness 9 to the larger thickness 8 of the other portion 6 is not necessarily provided in a stepwise manner but can also be a smooth transition which extends over a portion along the length of the paper tube 2.
  • FIG. 3 shows a paper drinking straw 20 with a paper tube 2 having a first end 3 and the second end 4 wherein a bevelled tip 7 is provided at the first end 3.
  • portion 5 at the first end 3 the paper is more compressed than in the portion 6 which, however in this case, does not lead to a change of the wall thickness 23 in portion 5 compared to the wall thickness 24 in portion 6.
  • This can be achieved by, for example, preparing a paper tube which is thicker at its first end 3 in portion 5, and this thicker portion is then compressed to have the same thickness as the other portion 6.
  • the paper being more compressed is shown in figure 3 by a more dense hatching compared to the hatching in portion 6.
  • this paper tube 2 has only one inner circumference 22 and an outer circumference 21.
  • FIG 4 a further embodiment of a paper drinking straw 25 is shown with a second end 4 and a first end 3, opposite to the first end 4, the first end 3 having a bevelled tip 7 at its end.
  • first end 3 having a bevelled tip 7 at its end.
  • the thickness 26 of this portion is smaller than the wall thickness 27 of another portion 6.
  • the transition between the thickness 26 to the thickness 27 is stepwise, but as is explained with respect to figures 1 and 2 the change of thickness may also be a smooth transition which extends over a certain length along the paper tube 2.
  • the change of the wall thickness (step wise or continuous or by a smooth transition as explained above) from a smaller wall thickness 26 to a larger wall thickness 27 does not necessarily have to be provided on the inside of the paper tube 2, but it may also be provided on the outside or at the inside and the outside of the paper tube 2.
  • bevelled tip 7 which is provided with an increased mechanical strength by having the paper being more compressed in portion 5 at the first end 3 than in portion 6.
  • the compressed paper is only provided in a section of the circumference of the paper tube 2.
  • a portion of the circumference which has a changed geometry compared to a circular shape is indicated by reference numeral 30, while the outer circumference of the tube is indicated by the reference numeral 28 and the inner circumference of the paper tube 2 is indicated by reference numeral 29.
  • figure 4c the three dimensional view of an embodiment of figure 4a and 4b is shown which indicates the portion 5 in which the paper is compressed providing a stiffened bevelled tip 7.
  • the wall thickness of the paper in the portion of the compressed paper can have a uniform density or a uniform wall thickness. It may however also have a non-uniform density and/or a non-uniform wall thickness (not shown in the figures). This can be given by e.g. certain parts inside of the portion 5 that are more compressed than other parts in portion 5. It is for example possible to provide ribbons in the portion 5, which extend e.g. along the longitudinal axis of the paper tube 2. The ribbons are formed by having elongated sections next to each other that have a changing or different density and that extend e.g. in the direction of the length of the paper tube 2 (although not along the entire length). Such ribbons can provide an increased mechanical stability.
  • FIG 5 schematically a way of preparing a paper drinking straw 1 is shown.
  • the paper drinking straw 1 is provided in a hollow tool 50.
  • the paper drinking straw 1 fits just in the opening of the hollow tool 50.
  • a tool 51 comprising three portions 51a, 51b and 51c is provided which can be moved outwards as indicated by the arrows in Fig. 5 a) .
  • the paper of the paper tube of the paper drinking straw 1 becomes compressed as the paper is pressed against the wall of the hollow tool 50.
  • the tool inside of the paper drinking straw 1 may also have only two portions or four or more portions that can move outwardly. By any gaps between the three portions 51 a, 51b and 51c ribbons of a less densely compressed paper extending along the length of the tube can be provided.
  • Such a method can lead to a paper drinking straw 15 as shown in figure 2 wherein the transition from the compressed paper in portion 5 to the paper in the other portion 6 is on the inside of the paper tube 2.
  • FIG 6 another embodiment is shown for preparing a paper drinking straw 1.
  • a tool 61 is provided which fills the paper tube 2 of the paper drinking straw 1, optionally entirely.
  • Two outer tools 60a and 60b can be provided that can be moved relative towards the tool 61 as indicated by the arrows in figure 6 . When the tools 60a and 60b move towards the tool 61 they compress the paper of the paper tube 2 on the outside of the paper tube 2.
  • the space provided in the closed configuration as shown in figure 6b between the tools 60a and 60b and the tool 61 is less than the space required by the paper of the paper tube of the paper drinking straw 1 before compressing it.
  • two outer tools 60a and 60b more then two outer tools can be used each covering a section of the circumference of the inner tool 61. By any gaps between the outer tools ribbons extending along the direction of the length of the tube can be created.
  • Such a version of preparing a paper tube can be used to prepare a paper drinking straw 1 according to figure 1 , where the transition of the reduced thickness 9 to a larger thickness 8 is provided on the outside of the paper tube 2.
  • a paper drinking straw as shown in figure 3 can be prepared either with the tools of figure 5 or the tools of figure 6 or corresponding methods.
  • Figure 7 shows a further embodiment illustrating a way of preparing a paper drinking straw 1.
  • the bevelled tip 7 at the first end 3 of the paper drinking straw 1 is provided between two tools 70a and 70b which can be pressed against each other. By pressing the two tools 70a and 70b against each other the portion with the bevelled tip 7 becomes compressed. This method can be used to prepare a paper drinking straw as shown in figure 4 .
  • the tools While in Figure 7 the tools are having a smooth surface they can also have a surface with a pattern, which is then impressed into the paper. This can be used to created ribbons in the portion 5 of any kind, such as e.g. extending along the direction of the length of the paper tube 2.
  • Figure 8 shows two embodiments of beverage containers.
  • Figure 8a shows a beverage carton 81 with a penetration opening 80 through which a paper drinking straw 1 has been inserted.
  • This paper drinking straw 1 has a paper tube with the paper being more compressed in the region 82.
  • Figure 8b shows a foil bag or a stand up pouch 83 with a penetration opening 84 through which a paper drinking straw 1 has been inserted, the paper drinking straw 1 having a portion of compressed paper 82.
  • the paper drinking straw 1 can be attached at the outside of the beverage container e.g. sealed into a wrapping (such as a paper wrapping) so that it is readily available for opening the beverage container by inserting the paper drinking straw into the penetration opening 80, 84.
  • a wrapping such as a paper wrapping

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  • Packages (AREA)
  • Table Equipment (AREA)
  • Cartons (AREA)
EP20202723.1A 2020-10-20 2020-10-20 Trinkhalm aus papier für einen getränkebehälter und getränkebehälter Withdrawn EP3987983A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20202723.1A EP3987983A1 (de) 2020-10-20 2020-10-20 Trinkhalm aus papier für einen getränkebehälter und getränkebehälter
CN202180070865.3A CN116390677A (zh) 2020-10-20 2021-09-30 用于饮料容器的纸吸管和饮料容器
EP21785888.5A EP4231879A1 (de) 2020-10-20 2021-09-30 Papiertrinkhalm für einen getränkebehälter und getränkebehälter
PCT/EP2021/076902 WO2022083995A1 (en) 2020-10-20 2021-09-30 Paper drinking straw for a beverage container and beverage container
US18/249,656 US20230389738A1 (en) 2020-10-20 2021-09-30 Paper drinking straw for a beverage container and beverage container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20202723.1A EP3987983A1 (de) 2020-10-20 2020-10-20 Trinkhalm aus papier für einen getränkebehälter und getränkebehälter

Publications (1)

Publication Number Publication Date
EP3987983A1 true EP3987983A1 (de) 2022-04-27

Family

ID=72964511

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20202723.1A Withdrawn EP3987983A1 (de) 2020-10-20 2020-10-20 Trinkhalm aus papier für einen getränkebehälter und getränkebehälter
EP21785888.5A Pending EP4231879A1 (de) 2020-10-20 2021-09-30 Papiertrinkhalm für einen getränkebehälter und getränkebehälter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21785888.5A Pending EP4231879A1 (de) 2020-10-20 2021-09-30 Papiertrinkhalm für einen getränkebehälter und getränkebehälter

Country Status (4)

Country Link
US (1) US20230389738A1 (de)
EP (2) EP3987983A1 (de)
CN (1) CN116390677A (de)
WO (1) WO2022083995A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100497125C (zh) * 2003-08-11 2009-06-10 客乐谐制药株式会社 纸盒容器和吸管
CN110025194A (zh) * 2019-05-27 2019-07-19 薛羽 伸缩纸吸管及其制作工艺
US20190290039A1 (en) * 2016-10-21 2019-09-26 Tetra Laval Holdings & Finance S.A. Drinking straw and method for manufacturing a drinking straw
KR102041221B1 (ko) * 2018-12-06 2019-11-07 백승복 상단부 보강형 종이 빨대
JP2020092746A (ja) * 2018-12-10 2020-06-18 日本製紙株式会社 紙製飲用ストロー
JP2020156938A (ja) * 2019-03-27 2020-10-01 日本製紙株式会社 紙製飲用ストロー

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100497125C (zh) * 2003-08-11 2009-06-10 客乐谐制药株式会社 纸盒容器和吸管
US20190290039A1 (en) * 2016-10-21 2019-09-26 Tetra Laval Holdings & Finance S.A. Drinking straw and method for manufacturing a drinking straw
KR102041221B1 (ko) * 2018-12-06 2019-11-07 백승복 상단부 보강형 종이 빨대
JP2020092746A (ja) * 2018-12-10 2020-06-18 日本製紙株式会社 紙製飲用ストロー
JP2020156938A (ja) * 2019-03-27 2020-10-01 日本製紙株式会社 紙製飲用ストロー
CN110025194A (zh) * 2019-05-27 2019-07-19 薛羽 伸缩纸吸管及其制作工艺

Also Published As

Publication number Publication date
US20230389738A1 (en) 2023-12-07
EP4231879A1 (de) 2023-08-30
CN116390677A (zh) 2023-07-04
WO2022083995A1 (en) 2022-04-28

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