WO2020125832A1 - Récipient en papier d'herbe - Google Patents

Récipient en papier d'herbe Download PDF

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Publication number
WO2020125832A1
WO2020125832A1 PCT/DE2019/000311 DE2019000311W WO2020125832A1 WO 2020125832 A1 WO2020125832 A1 WO 2020125832A1 DE 2019000311 W DE2019000311 W DE 2019000311W WO 2020125832 A1 WO2020125832 A1 WO 2020125832A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
face
lateral surface
container
grass paper
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.)
Ceased
Application number
PCT/DE2019/000311
Other languages
German (de)
English (en)
Inventor
Joachim Schropp
Sven Schropp
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.)
Schropp GmbH and Co KG
Original Assignee
Schropp GmbH and Co KG
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 Schropp GmbH and Co KG filed Critical Schropp GmbH and Co KG
Priority to DE112019006297.2T priority Critical patent/DE112019006297A5/de
Publication of WO2020125832A1 publication Critical patent/WO2020125832A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material

Definitions

  • the invention relates to a container made of grass paper.
  • Corresponding containers are used in particular as disposable containers, for example for serving drinks.
  • Containers as grass paper are known.
  • the Be consists of an outer layer of grass paper and a thinner inner coating of a plastic material.
  • the inner coating should ensure the necessary tightness of the container.
  • the invention has for its object to provide an improved container made of grass paper, which has the required tightness for the storage of liquids.
  • the container of grass paper according to the invention is given by the characteristics of the main claim 1.
  • a second container according to the invention is given by the features of the independent claim &.
  • a method according to the invention for producing the containers according to the invention is given by the features of claim 11.
  • the container made of grass paper according to the invention has a jacket surface made of grass paper, in which the two lateral edge areas are attached to one another by lapping.
  • the outer surface has a coating on the inside of the container thus formed.
  • the invention is based on the knowledge that the inner coating alone cannot prevent effective dampening of the grass paper.
  • the moisture can penetrate into the grass paper via the inner face of the outer surface, which is not provided with a coating as a cutting edge in terms of production technology, so that it becomes damp and leaky.
  • grass paper is understood here to mean not only the actual grass paper but also any other material that is made from a gentle, rapidly renewable raw material (called SnR). In particular, this also includes hay paper or straw paper.
  • At least the inner end face of the lateral surface is also provided with a coating.
  • the inner coating alone cannot prevent the grass paper from effectively dampening, so that the container leaks.
  • the end face of the outer surface lying in the interior is provided with a suitable coating, moisture can be effectively prevented, so that the container is tight enough to be suitable for the storage of liquids, in particular beverages.
  • the coating of the end face of the lateral surface can in particular be designed as a sealing strip. Such a sealing strip can be easily and quickly applied after the application of the flat coating and also after the cutting of the outer surface from a larger sheet of grass paper, so that the production of the container can be realized economically.
  • the sealing strip In order to ensure a sufficient hold of the sealing strip, it can protrude beyond the end face of the lateral surface and thus also partially cover the edge areas of the lateral surface.
  • the sealing strip can have a width of about eight millimeters.
  • the sealing strip can preferably be made of a plastic film. Such films can be produced economically, can have a very small thickness and still ensure the required tightness.
  • the plastic film can in particular consist of PET or PE.
  • Such a container has proven to be sufficiently leakproof that liquids can also be stored in it for a longer period of time.
  • the plastic portion of containers according to this embodiment is still relatively high, so that the containers have to be classified as a composite material. It is therefore not possible to dispose of the used containers as waste paper.
  • the coating of the end face of the inner jacket surface can therefore also be formed as part of the coating of the jacket surface. This can be achieved by the coating of the jacket surface projecting a little above the jacket surface in the region of the inner end face.
  • the cantilever region of the coating can be fastened to the inside of the outer edge region of the lateral surface.
  • the inner edge region of the outer surface and / or the coating of the inner edge region of the outer surface can be bent outwards. If the outer surface is bent over to the outside, the cut edge of the outer surface can come to rest on the outside of the container.
  • the cut edge of the lateral surface can be covered by the coating and thus protected. In both cases, the cut edge is therefore not in direct contact with the liquid to be stored, so that it cannot penetrate the grass paper via the cut edge either.
  • the inner edge region of the lateral surface can preferably be bent outwards along a line of weakness. In this way it can be prevented that the grass paper and / or the inner coating tears at the crease of the outer surface, which would entail the risk of new leaks.
  • the weakening line can be designed as a creasing line in an economically advantageous manner. Such lines of weakness are easy to manufacture and still enable an optimal crease without cracks.
  • the coating of the lateral surface can be designed as a lacquer in an advantageous embodiment. It is known to coat and treat paper materials with a lacquer in such a way that the paper material becomes water-impermeable. In principle, such treatment would also apply to grass paper or similar
  • the coating of the outer surface can protrude beyond the inner end face of the outer surface.
  • the cantilever region of the coating projecting beyond the end face of the outer surface can then be bent outwards, so that the end face of the outer surface is covered by the coating.
  • the cantilever area of the coating can be bent outwards directly on the end face, so that the cantilever area can be fastened to the outer lateral surface.
  • the end face of the outer surface is completely covered by the coating.
  • the cantilever region of the coating can also be bent outwards in such a way that the end face of the coating abuts the end face of the lateral surface. This would have the advantage that the edge region of the lateral surface is not thickened by additional layers of coating, so that the sealing seam for fastening the two edge regions of the lateral surfaces to one another can be produced without problems.
  • the coating of the outer surface can in an advantageous embodiment consist of paper coated with a lacquer. It is known to coat and treat paper materials with a varnish so that the paper material becomes impermeable to water. In order to be able to manufacture the containers as much as possible from rapidly renewable raw materials, a combination of the paper coated with the lacquer and thus liquid-tight with a lateral surface made of grass material can preferably be used. In this case, the liquid-tight paper can be thin-walled, since the additional outer surface made of grass paper can ensure the necessary stability of the container.
  • the proportion of grass paper in the container it is possible to increase the proportion of grass paper in the container to at least 40 percent.
  • containers with a grass paper content of about 20 percent are known.
  • the proportion of grass paper can be increased to around 70 percent.
  • both embodiments of the container according to the invention can be a container in the form of a handleless cup.
  • the lateral surface can also be used be attached to a floor at its lower edge region.
  • Such cup-like containers are particularly suitable for the sale of beverages, for example in street sales or in fast-food restaurants.
  • such containers are also sold directly to the end user as one-way containers, for example as equipment for picnics or casual celebrations.
  • the container can be conical. In this case, the outer surface is not fastened to a floor, rather the container runs in a cone tip.
  • the free upper edge of the lateral surface can preferably be bent outwards. This leads to a more pleasant feeling while drinking and at the same time can prevent liquid from coming into contact with the upper end edge of the lateral surface, which could also lead to leaks.
  • FIG. 1 is a perspective view of a first embodiment of the container according to the invention made of grass paper, which is designed in the form of a cup,
  • FIG. 1 shows a detailed cross section through the container according to FIG. 1, 3 is a perspective view of a second embodiment of the container made of grass paper according to the invention, which is conical;
  • FIG. 4 shows a detail cross section through the container according to FIG. 3,
  • FIG. 5 is a perspective view of a third embodiment of the container made of grass paper according to the invention, which is designed in the form of a cup,
  • FIG. 6 shows a detailed cross section through the container according to FIG. 5,
  • FIG. 7 shows a detailed cross section through the connection area of a fourth embodiment of the container made of grass paper according to the invention
  • FIG. 8 shows a detail cross section through the connection area of a fifth embodiment of the container made of grass paper according to the invention
  • FIG. 9 shows a detailed cross section through the connection area of a sixth embodiment of the container made of grass paper according to the invention.
  • Fig. 10 shows a section of a sheet of grass paper from which
  • FIG. 11 shows the section according to FIG. 10 after the lamination of the
  • FIG. 12 shows the punched-out jacket surfaces according to FIG. 11, in which the coating has been bent over in such a way that the front side of the jacket surface abuts the front side of the coating.
  • FIGS. 1 and 2 A first embodiment of the container 10 according to the invention made of grass paper is shown in FIGS. 1 and 2.
  • the container 10 has a lateral surface 20 made of grass paper.
  • the lateral surface 20 is attached to a circular bottom 24 with its lower edge region 22.
  • the upper edge region 26 of the outer surface 20 is bent over, so that a drinking edge forms on the container 10.
  • the two lateral edge regions 30, 32 of the lateral surface 20 are attached to one another in an overlapping manner. Characterized one of the two end faces 34 of the outer surface 20 on the inside of the container 10, while the other end face 36 of the outer surface 20 is arranged on the outer side of the container 10.
  • the inside of the outer surface 20 is seen with a coating 40 ver.
  • the coating 40 is present over the entire surface of the jacket surface 20 in a uniform thickness.
  • the coating 40 is applied to a sheet of grass paper prior to the actual cutting of the outer surface 20.
  • the respective end faces 34, 36 of the lateral surface 20 are not provided with the coating 40 as cut edges.
  • the inner end face 34 of the lateral surface 20 is therefore provided with a sealing strip 42.
  • the sealing strip 42 projects beyond the end face 34 and therefore also covers the edge region 30 of the lateral surface 20 inside and outside. In order to ensure sufficient tightness, the sealing strip 42 must run over the entire end face 34.
  • the sealing strip 42 is generally only applied when the outer surface 20 has already been cut.
  • the sealing strip 42 is therefore located above the inner coating 40 of the outer surface 20.
  • the outer end face 36 is not provided with a sealing strip in the present example. Since the outer end face 36 does not come into contact with the liquid to be stored in the intended use, moisture can be excluded from the container 10 via the end face 36. However, this presupposes that the end face 36 always comes to rest on the outside of the container 10, which is regularly the case with machine manufacture of the container 10. In principle, however, it would be possible to provide the end face 36 with a corresponding sealing strip.
  • the container 10.3 is shown in Figs. 3 and 4.
  • the container 10.3 differs from the container 10 shown in FIGS. 1 and 2 primarily in that the container 10.3 is conical and therefore has no bottom.
  • the outer surface 20.3 therefore has the shape of a segment of a circle when unrolled.
  • the inside of the outer surface 20.3 is provided with a coating 40.3.
  • the inner end face 34.3 of the lateral surface 20.3 is provided with a sealing strip 42.3.
  • the sealing strip 42.3 projects beyond the end face 34.3 and therefore also covers the edge region of the lateral surface 20.3.
  • FIGS. 5 and 6 A third embodiment of the container 10.5 according to the invention is shown in FIGS. 5 and 6.
  • the container 10.5 corresponds in its outer shape to the container 10, since the outer surface 20.5 of grass paper is attached with its lower edge region 22 to a circular bottom 24.
  • the upper edge region 26.5 of the lateral surface 20.5 is bent over, so that a drinking edge is formed on the container 10.5.
  • the inside of the outer surface 20.5 is provided with a coating 40.5.
  • the respective end faces 34.5, 36.5 of the lateral surface 20.5 are not provided with the coating 40.5 as cut edges.
  • the inner end face 34.5 of the lateral surface 20.5 is therefore bent outwards along a weakening line 44 running parallel to the end face 34.5.
  • the end face 34.5 like the end face 36.5, is thus on the outside of the container 10.5, so that the end faces 34.5, 36.5 can not be moistened by liquid stored in the container 10.5.
  • FIG. 7 A fourth embodiment of the container 10.7 according to the invention is shown in FIG. 7.
  • the inside of the outer surface 20.7 is provided with a coating 40.7. While the coating 40.7 ends on the outer end face 36.7 of the lateral surface 20.7 at the height of the end face 36.7, the coating 40.7 on the inner end face 34.7 protrudes a little way beyond this inner end face
  • This cantilever region 50 of the coating 40.7 is fastened from the inside to the opposite edge region 32.7 of the lateral surface 20.7.
  • the inner coating 40.7 thus forms with the cantilever area 50 a continuous coating of the container 10.7, in which the inner end face 34.7 of the outer surface is not freely accessible. As a result, this end face 34.7 cannot be moistened.
  • FIG. 8 A fifth embodiment of the container 10.8 according to the invention is shown in FIG. 8.
  • the inside of the outer surface 20.8 is provided with a coating 40.8. While the coating 40.8 ends on the outer end face 36.8 of the lateral surface 20.8 at the height of the end face 36.8, the coating 40.8 on the inner end face 34.8 protrudes a little way beyond this inner end face
  • a sixth embodiment of the container according to the invention is bent outwards and fastened to the outside of the inner edge area 30.8 of the lateral surface. As a result, the inner end face 34.8 is covered by the cantilever area 50.8 and is no longer exposed. This means that this end face 34.8 cannot be moistened.
  • the inside of the outer surface 20.9 is provided with a coating 40.9. While the coating 40.9 ends on the outer end face 36.9 of the lateral surface 20.9 at the height of the end face 36.9, the coating 40.9 on the inner end face 34.9 protrudes a little way beyond this inner end face
  • This cantilever area 50.9 is bent outwards in such a way that the end face 52 of the cantilever area 50.9 bears on the end face 34.9 of the jacket surface 20.9.
  • the inner end face 34.9 is covered by the collar area 50.9 and is no longer exposed.
  • this end face 34.9 cannot be moistened.
  • the containers according to the embodiments of FIGS. 7 to 9 can be both a cup-shaped container comparable to the embodiments according to FIGS. 1 and 5 and a conical container comparable to the embodiment according to FIG. 3.
  • the upper edge area of the respective lateral surface is bent around so that a drinking edge is formed on the respective container.
  • FIGS. 10 to 12 A possible production of the respective lateral surfaces 20.9 is shown in FIGS. 10 to 12.
  • a sheet of grass paper 60 becomes a total of two lateral surfaces
  • elongated rectangles 62 are punched out of the sheet of grass paper 60. These elongated rectangles 62 are discarded.
  • the lateral surface 20.9 is indicated by dashed lines and hatched in FIG. 10.
  • the elongated rectangles 62 are positioned on the lateral edge region 30.9 that comes to rest on the inside in the finished container 10.9.
  • the coating 40.9 is also present in the area of the punched-out rectangles 62.
  • the lateral surface 20.9 is arranged such that the coating 40.9 points downwards and the cross-hatched surface 20.9 upwards. The later outside of the container 10.9 thus points upwards.
  • the coating 40.9 projects in the area of the end face 34.9 a little way beyond this end face 34.9 and thus forms the cantilever area
  • the cantilever region 50.9 of the coating 40.9 can then be turned over such that the end face 52 of the coating 40.9 bears against the end face 34.9 of the lateral surface 20.9.
  • the end face 34.9 of the lateral surface 20.9 is thus protected against moisture penetration.
  • the cantilever area 50.9 in the present example has a V-shaped notch 54 on its lower edge area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

L'invention concerne un récipient (10) en papier d'herbe. Le récipient (10) comporte une surface externe (20) en papier d'herbe, les deux zones de bord latérales (30, 32) de la surface externe (20) étant fixées l'une à l'autre de façon superposée. La surface externe (20) présente un revêtement (40) au moins sur la face interne du récipient (10). Selon un premier mode de réalisation de l'invention, au moins la face frontale intérieure (34) de la surface externe (20) est pourvue d'un revêtement supplémentaire (42). Selon un autre mode de réalisation de l'invention, la zone de bord intérieure de la surface externe est incurvée vers l'extérieur.
PCT/DE2019/000311 2018-12-20 2019-12-04 Récipient en papier d'herbe Ceased WO2020125832A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112019006297.2T DE112019006297A5 (de) 2018-12-20 2019-12-04 Behältnis aus Graspapier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018009938.6A DE102018009938A1 (de) 2018-12-20 2018-12-20 Behältnis aus Graspapier
DE102018009938.6 2018-12-20

Publications (1)

Publication Number Publication Date
WO2020125832A1 true WO2020125832A1 (fr) 2020-06-25

Family

ID=68965586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/000311 Ceased WO2020125832A1 (fr) 2018-12-20 2019-12-04 Récipient en papier d'herbe

Country Status (2)

Country Link
DE (2) DE102018009938A1 (fr)
WO (1) WO2020125832A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290222U (fr) *
US2316150A (en) * 1942-04-02 1943-04-13 Universal Paper Products Compa Paper cup
GB2124997A (en) * 1982-06-30 1984-02-29 Toyo Seikan Kaisha Ltd Sealed laminated vessels
US6142331A (en) * 1999-10-06 2000-11-07 Fort James Corporation Container with indicia covering brim, blank for making such a container, and methods for making the container and blank
WO2011146087A1 (fr) * 2010-05-21 2011-11-24 Meadwestvaco Corporation Contenants en carton scellés hermétiquement à performance de barrière améliorée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290222U (fr) *
US2316150A (en) * 1942-04-02 1943-04-13 Universal Paper Products Compa Paper cup
GB2124997A (en) * 1982-06-30 1984-02-29 Toyo Seikan Kaisha Ltd Sealed laminated vessels
US6142331A (en) * 1999-10-06 2000-11-07 Fort James Corporation Container with indicia covering brim, blank for making such a container, and methods for making the container and blank
WO2011146087A1 (fr) * 2010-05-21 2011-11-24 Meadwestvaco Corporation Contenants en carton scellés hermétiquement à performance de barrière améliorée

Also Published As

Publication number Publication date
DE112019006297A5 (de) 2021-10-07
DE102018009938A1 (de) 2020-06-25

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