Method for producing a recess in a packaging piece from a leaf material of a plant

Inventors: Claudio Pascal Fritz-Vietta (Berlin, DE); Daniele Grotto (Berlin, DE)

Assignee: Leef Blattwerk GmbH

B65B61/005 B31B50/142 B31B2110/10

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Quick Facts

Patent No.: US 12698120
App. No.: 18/826,404
Granted: Aug 4, 2026
Kind: B2

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Abstract

The present disclosure relates to a method for producing a recess in a packaging piece from a leaf material of a plant, comprising the following steps: providing a three-dimensionally shaped packaging piece from a leaf material of a plant; providing a negative mould with respect to the inner surface of the packaging piece, wherein the negative mould has a recess; placing the packaging piece onto the negative mould in such a way that the inner surface of the packaging piece abuts on the outer surface of the negative mould and the packaging piece is held on the negative mould using a punch which presses the packaging piece onto the negative mould, wherein the packaging piece covers the recess of the negative mould; and displacing a cutting tool from outside the packaging piece through the leaf material of the packaging piece into the recess of the negative mould, so that a recess in the packaging piece is produced, whereby the negative mould-supports the packaging piece when producing the recess in the packaging piece. Furthermore, a three-dimensionally shaped packaging piece and a packaging for an article are disclosed.

Claims (18)

1 . Method for producing a recess in a packaging piece from a leaf material of a plant, comprising the following steps:

providing a three-dimensionally shaped packaging piece from a leaf material of a plant;

providing a negative mould with respect to the inner surface of the packaging piece, wherein the negative mould has a recess;

placing the packaging piece onto the negative mould in such a way that the inner surface of the packaging piece abuts on the outer surface of the negative mould and the packaging piece is held on the negative mould using a punch which presses the packaging piece onto the negative mould, wherein the packaging piece covers the recess of the negative mould; and

displacing a cutting tool from outside the packaging piece through the leaf material of the packaging piece into the recess of the negative mould, so that a recess in the packaging piece is produced, whereby the negative mould supports the packaging piece when producing the recess in the packaging piece.

2 . The method according to claim 1 , wherein the leaf material is a palm leaf material.

3 . The method according to claim 1 , wherein the negative mould is formed with a metal.

4 . The method according to claim 1 , wherein the negative mould is formed in one piece.

5 . The method according to claim 1 , wherein the packaging piece rests on the negative mould in a form-fitting manner.

6 . The method according to claim 1 , wherein the punch is pressed onto an outer bottom surface of the packaging piece such that an inner surface of the packaging piece is pressed onto a corresponding counter surface of the negative mould.

7 . The method according to claim 6 , wherein the bottom surface of the packaging piece is formed quadrangularly and the negative mould has a quadrangular top surface.

8 . The method according to claim 1 , wherein an opening of the packaging piece spans an area which is at least as large as an inner bottom surface of the packaging piece.

9 . The method according to claim 1 , wherein the packaging piece and the negative mould are each formed cube-shaped, cuboid-shaped, prism-shaped, pyramid-shaped, truncated pyramid-shaped, cone-shaped, truncated cone-shaped, cylindrical or generalized cylindrical.

10 . The method according to claim 1 , wherein the punch presses onto the packaging piece in a direction parallel to an axis of symmetry or a plane of symmetry of the packaging piece.

11 . The method according to claim 1 , wherein the cutting tool has a blade which is formed such that it can be moved into the recess with a precise fit.

12 . The method according to claim 1 , wherein the recess is produced spaced apart from an edge of the packaging piece.

13 . The method according to claim 1 , wherein the cutting tool is moved by means of a pneumatic press or a hydraulic press.

14 . A three-dimensionally shaped packaging piece from a leaf material of a plant with a recess, produced according to a method according to claim 1 .