AT528111A4 - Carrying handle and packaging - Google Patents

Abstract

The invention relates to a carrying handle for packaging, wherein the carrying handle is formed from a sheet of paper (1) or comprises a sheet of paper (1), wherein at least two spaced-apart incisions (2) are provided in the sheet of paper (1), such that a handle part (3) is formed from the area of the sheet of paper (1) located between the incisions (2), and wherein a round, in particular a circular, recess (5) adjoins each end (4) of the incisions (2). The invention further relates to packaging comprising such a carrying handle.

Description

Carrying handle and packaging

The present invention relates to a carrying handle and a package comprising a carrying handle. In particular, the invention relates, among other things, to handles for

industrial paper bags or other containers.

Currently, handles for industrial paper carrier bags are typically made from a nonwoven-based material. Such handles typically consist of a multi-layer combination of materials, such as the following layer arrangement: paper-polyethylene (PE)-polypropylene (PP)-polyethylene (PE)-paper.

This combination typically provides sufficient strength and durability for the handles, but has significant drawbacks in terms of recyclability. In particular, the individual handle materials are difficult to separate from each other or from other packaging materials, complicating the recycling process and reducing its efficiency. This represents a significant disadvantage of the current state of the art.

In addition, the manufacture of these handles requires complex production processes

and the use of multiple materials, which increases production costs and

Sustainability further impaired.

On the other hand, materials with a simpler structure or which are easier to recycle typically do not have sufficient mechanical stability for the requirements

which are placed on carrying handles.

The present invention aims in particular to overcome the aforementioned disadvantages. Specifically, the conflict between the required strength and recyclability is to be at least partially overcome. In particular, the invention therefore aims to create a recyclable handle structure for industrial paper carrier bags. This should preferably be easy to manufacture, exhibit high strength and durability, and simultaneously minimize environmental impact.

It is particularly advantageous if the handle structure is made of a monomaterial.

In the context of the present invention, it was surprisingly found that this conflict of objectives can be at least partially resolved by providing a carrying handle made of paper

or a paper-like material.

Such a paper-based handle consists of a single material layer made entirely of paper. This single-layer construction enables simple and efficient recycling, as the separation

different materials can be omitted.

The paper used can be bonded, for example, with a starch adhesive to a container or other object that is also made of paper or comprises paper, thereby forming a package with a carrying handle. In particular, the use of a starch adhesive for bonding can provide an environmentally friendly and cost-effective solution.

Preferably, the carrying handle has a special cut design or pattern,

which was surprisingly found to improve the mechanical

The load capacity of the carrying handle can be drastically increased.

The pattern in particular forms a handle part which can be grasped with the hand, for example, in order to use the carrying handle in the intended manner.

to be able to use.

In one embodiment, the cutting pattern consists of at least two cuts running along a sheet of paper, with the gripping part being formed by the area of the sheet of paper located between the two cuts. Advantageously, the cuts are spaced apart from each other or they

do not overlap or cross each other.

Typically, each notch has two ends. Advantageously, a material recess is arranged at each end of the notch. The material recess

can have a round, especially a circular, shape.

Advantageously, the two ends of each incision are located within the

sheet of paper.

The incisions may be straight and run essentially parallel to each other. Alternatively, the incisions may also have other shapes, for example, they may be arched or curved in some other way. In this case, too, the incisions may run essentially parallel to each other, but they may also have other relative arrangements. For example, the incisions may also run along a line marked on the sheet of paper.

lying mirror axis.

Surprisingly, the combination of the cutout and the material recesses leads to a particularly stable support structure, whereby the recesses prevent the paper sheet from tearing.

It is advantageous if the paper sheet has a certain mechanical stability,

to better withstand the stress of wearing. Therefore, the material

the paper sheet is advantageously sufficiently stretchable and/or tear-resistant.

The paper sheet may be formed by a flat, particularly rectangular or square, piece of paper having a continuous, uniform surface without predetermined folds or creases. The continuity of the paper sheet is

in particular, two incisions were interrupted, as already described.

The carrying handle can be covered with a container or other packaging material

connected, in particular glued, to form a portable package.

If necessary, the packaging material is also made of paper, for example kraft paper, at least in the area where it is connected to the handle. In this case, the handle can be bonded to the

packaging material.

In the context of this disclosure, the following terms are used,

which advantageously have the following meanings:

The term "round" can refer to any geometric shape that is characterized by a continuous curvature and has no corners or edges. In particular, "round" refers to a closed or at least a substantially closed curve. A circle is a typical example of a round shape in which all points are the same distance from the center. In this case, the shape can also be referred to as "circular." For the purposes of the present disclosure, the definition of "round" also includes elliptical shapes and other curved contours, as long as they do not have sharp corners or edges and the

retain the fundamental property of continuous curvature.

The term “essentially closed curve” also includes curves that are not completely closed, especially if they have a central angle of

at least 340°, in particular at least 350°. “Incisions” are in particular cuts in a material, such as

Sheets of paper that separate or divide the material without leaving any part or all of it.

to remove a significant portion of the material. If necessary, and the

The original continuity of the material is not interrupted by the cuts. In other words, the material can be separated along the cuts,

but otherwise remains intact, forming adjacent pieces of material.

Each notch has a specific length, which is defined in particular by the distance between the two ends of the respective notch. The end of a

In particular, the incision simultaneously forms the transition to a recess.

The "distance" between two cuts refers in particular to the normal distance between two parallel cuts. If the cuts are not parallel to each other, the "distance" refers in particular to the

smallest normal distance between the incisions.

In contrast to a "cut," the term "recess" refers specifically to an area of the material or paper sheet where a portion of the material is or has been removed. A recess can be created, for example, by punching or

Cutting out this part. Disclosed is a carrying handle for a package, wherein the carrying handle is formed from a paper sheet or comprises a paper sheet, wherein in the paper sheet at least

two spaced-apart incisions are provided.

If necessary, it is intended that the space between the incisions

A handle part is formed in the area of the paper sheet.

If necessary, it is provided that a round,

in particular a circular recess.

Where appropriate, the incisions are intended to be straight and/or curved

are trained.

Where appropriate, the cuts shall be parallel to each other.

Where appropriate, it is intended that the course of the incisions be along a line marked on the

The axis lying on the sheet of paper is mirrored.

Where appropriate, the ends of the cuts are provided for tangentially or radially in

the respective recess.

Where appropriate, the length of the cuts shall be between 100 mm and

150 mm, especially between 110 mm and 120 mm.

Where appropriate, it is provided that the normal distance between the cuts

between 20 mm and 50 mm, in particular between 30 mm and 40 mm.

Where appropriate, the diameter of the recesses is provided for between 3

mm and 8 mm, in particular between 4 mm and 6 mm.

Where appropriate, the paper sheet may be made of kraft paper.

Where appropriate, the paper sheet shall have a grammage between 70 g/m² and 150 g/m² according to ISO 536:2019.

Where appropriate, the paper sheet shall have an elongation at break of at least 7% in the machine direction and/or in the transverse direction according to ISO 19243:2005.

Where appropriate, the paper sheet shall have a tear resistance index of at least 10 mN.g/m? in the machine direction according to ISO 1974:2012 and/or of at least 15 mN.g/m? in the cross direction according to ISO 1974:2012

Where appropriate, the paper sheet is intended to have a tensile work index of

at least 5.0 J/g in the machine direction according to ISO 1924-3:2005 and/or at least 2.0 J/g in the transverse direction according to ISO 1924-3:2005.

Where appropriate, the paper sheet shall have a burst strength of at least 500 kPa according to ISO 2758:2014.

Where appropriate, the paper sheet is intended to have a tear resistance of at least 1,000 mN, in particular of at least 1,300 mN, in the machine direction and/or in the transverse direction according to ISO 1974:2012.

Where appropriate, the cuts are made along the machine direction

of the sheet of paper.

Also disclosed is a package, in particular a paper package, comprising an interior surrounded by a packaging material and a

carrying handle arranged on the packaging material.

Where appropriate, the carrying handle of this packaging is provided as shown here

revealed is carried out.

If necessary, the carrying handle is provided with the packaging material

is glued.

If necessary, the carrying handle can be fixed to the

glued to the packaging material.

Further features emerge from the patent claims, the figures and the

Description of the embodiments.

In the following, certain embodiments of the invention are discussed with reference to exemplary examples. These are intended to serve only as illustrations and to

Patent claims do not restrict the scope of protection. It shows:

Fig. 1 is a schematic plan view of a carrying handle according to a first

Example of implementation;

Fig. 2 is a schematic plan view of a carrying handle according to a second embodiment; and Fig. 3 is a schematic plan view of a package with a carrying handle according to a

Example of implementation.

Unless otherwise indicated or otherwise apparent from the context, the following features are shown in the figures: Paper sheet 1, Notch 2, Handle part 3,

End 4 of a notch 2, recess 5, packaging material 6, carrying handle 7.

Fig. 1 shows a schematic plan view of a carrying handle according to a first embodiment. In this embodiment, the carrying handle consists of a sheet of paper 1 provided with two parallel, straight cuts 2. At the respective ends 4 of the cuts 2 (each

Incision 2 has two ends 4) circular recesses 5 are arranged.

In this embodiment, the cuts 2 run in the radial direction into the

Recesses 5.

Between the two notches 2 a handle part 3 is formed, which can be gripped with a hand or

a lifting device can be engaged.

Essentially no paper material is removed along the incisions 2, so that adjacent areas of the paper sheet lie directly against each other. In this respect, an incision 2, as shown here, is characterized, for example, by a hole or a

Long holes must be distinguished, which do not represent an incision 2 in this sense.

In this embodiment, the length of the two notches 2 between their two ends 4 is approximately 120 mm. The standard distance between the notches 2, which simultaneously defines the width of the handle part 3, is approximately 30 mm. The diameter of the circular recesses is approximately 5 mm.

The paper sheet 1 used in this embodiment is single-layer kraft paper

with the property profile given below in Table 1.

Table 1: Property profile of the paper according to the example

Property Unit | Standard Orientation | Value Grammage g/m² ISO 536 —- 130 Thickness around ISO 534 —- 190 Breaking strength kN/m² ISO 1924-3 |MD 16.2 CD 6.5 Elongation at break % ISO 1924-3 |MD 12.5 CD 9.4 Energy absorption J/m² ISO 1924-3 |MD 890 CD 400 Tear strength | mN ISO 1974 MD 1600 CD 2600 Cobbeo g/m² ISO 535 28 Bursting strength kPa ISO 2758 —- 830

Fig. 2 shows a schematic plan view of a carrying handle according to a second embodiment. This carrying handle is largely similar to that of the first embodiment, with the difference that the notches 2 are arranged in a tangential

Direction into the recesses 5.

Other embodiments not shown here are conceivable, in which the incisions are made in different ways than those expressly shown here.

Recesses run.

Fig. 3 shows a schematic plan view of a package with a carrying handle 7 according to an embodiment. Here, a carrying handle 7, as described with reference to Fig. 1, has been attached to a packaging material 6 in order to

Carrying handle can be used as intended. In this embodiment, the packaging material 6, like the carrying handle 7,

itself is also made of kraft paper. The packaging material 6 surrounds

embodiment, a substantially prismatic interior space, which is

Acceptance of different goods, for example a bulk material such as cement or

Sand, can serve.

In this embodiment, the carrying handle 7 is attached by means of a starch adhesive, which is arranged on the outer circumference of the paper sheet 1 and thereby bonds the paper sheet 1 and the packaging material 6. The starch adhesive is, in particular, solvent-free and can be cured by heat application. To ensure the proper function of the carrying handle 7,

No adhesive is provided for the handle part 3. Such an arrangement allows the carrying handle 7 to be used for lifting objects

weighing up to 10 kg, which are packed in such packaging

are packaged.

Claims (6)

Patent claims 1. A carrying handle for a package, wherein the carrying handle is formed from a paper sheet (1) or comprises a paper sheet (1), wherein at least two spaced-apart incisions (2) are provided in the paper sheet (1), so that a handle part (3) is formed from the area of the paper sheet (1) located between the incisions (2), characterized in that a round, in particular a circular, recess (5). 2. Carrying handle according to claim 1, characterized in that the incisions (2) are straight and/or curved. 3. Carrying handle according to claim 1 or 2, characterized in that - the course of the incisions (2) is parallel to each other, - and/or that the course of the incisions (2) is along a line formed on the sheet of paper (1) is mirrored. 4. Carrying handle according to one of claims 1 to 3, characterized in that the ends (4) of the cuts (2) extend tangentially or radially into the respective recess (5) flow into. 5. Carrying handle according to one of claims 1 to 4, characterized in that the length of the incisions (2) is between 100 mm and 150 mm, in particular between 110 mm and 120 mm, and/or that the normal distance between the incisions (2) is between 20 mm and 50 mm, in particular between 30 mm and 40 mm. 6. Carrying handle according to one of claims 1 to 5, characterized in that the Diameter of the recesses (5) between 3 mm and 8 mm, in particular between 4 mm and 6 mm. 11. 12. 13. 12 64140/MB/Mondi AG, Marxergasse 4A, 1030 Vienna (AT) Carrying handle according to one of claims 1 to 6, characterized in that the Paper sheet (1) is made of kraft paper. Carrying handle according to one of claims 1 to 7, characterized in - that the paper sheet (1) has a grammage between 70 g/m² and 150 g/m² according to ISO 536:2019, - and/or that the paper sheet (1) has an elongation at break of at least 7% in the machine direction and/or in the transverse direction according to ISO 1924-3:2005 has. Carrying handle according to one of claims 1 to 8, characterized in - that the paper sheet (1) has a tear resistance index of at least 10 mN.g/m² in the machine direction according to ISO 1974:2012 and/or of at least 15 mN.g/m² in the transverse direction according to ISO 1974:2012, - that the paper sheet (1) has a tensile work index of at least 5.0 J/g in the machine direction according to ISO 1924-3:2005 and/or of at least 2.0 J/g in the transverse direction according to ISO 1924-3:2005. Carrying handle, characterized in that the cuts (2) along the Machine direction of the paper sheet (1). Packaging, in particular paper packaging, comprising an interior space surrounded by a packaging material (6) and a carrying handle (7) arranged on the packaging material (6) according to one of claims 1 to 10. Packaging according to claim 11, characterized in that the carrying handle (7) is glued to the packaging material (6). Packaging according to claim 12, characterized in that the carrying handle (7) is glued to the packaging material (6) by means of a starch adhesive. 14. Packaging according to claim 12 or 13, characterized in that the area of the handle part (3) is free of adhesive.