EP4183728A1 - Apparatus for applying a strip comprising a microcreped paper - Google Patents

Abstract

Device (110) for applying a strip P (112) containing at least one microcreped paper to a carrier material T (114), the device containing the strip P (112) wound into a coil S (116) and rotatably mounted rolls R₁ (118), R₂ (120) and R₃ (122) for guiding the strip P unwound at least partially from the spool, the at least a microcreped paper contained in the strip P wound into the spool has a tensile strength of at least 8 kN/m, an extensibility of at least 4% and a tear strength of at least 1200 mN.

Description

The present invention relates to a device for applying a strip containing at least one microcreped paper to a carrier material. Furthermore, the present invention relates to a method for applying a strip containing at least one microcreped paper to a carrier material. In addition, the present invention relates to a use of said device and a carrier material containing a strip, obtained or obtainable by said method. Devices and methods of the type mentioned can be used, for example, in the field of packaging technology, preferably in packaging production. The invention can thus be used in particular in the production of packaging, for example for the production of tear strips on a corrugated cardboard plant, on a folding box plant and/or on a pure gluing plant. However, other areas of use are also conceivable in principle.

In packaging technology, sustainable, environmentally neutral and materially reusable packaging is becoming increasingly important. Because of the generally easy recycling as well as a generally lower _carbon footprint, paper plays a special role in increasing sustainability in packaging technology. When recycling paper, however, it is generally very important that no substances that impede processing get into what is known as the pulp. Plastic materials in particular, such as foils, therefore have to be removed in a complex manner before they can be reused. In general, therefore, a reduction or even omission of plastic materials is desirable in the manufacture of packaging.

However, plastic materials, such as film strips, usually in the form of a self-adhesive tape, are generally used in particular for the production of tear-off strips for opening packages. The self-adhesive tear strips are automatically applied by appropriate unwinding devices during the production of the packaging. For example in DE 299 17 738 U1 a device for unwinding narrow, at least one-sided self-adhesive tape located on a roll equipped material described. In general, these devices and methods are suitable for plastic adhesive tapes and/or plastic films that are not sensitive to handling. However, known devices and methods are generally not suitable for handling paper, which is generally much more sensitive.

It is therefore desirable to provide devices and methods which avoid or largely avoid the described disadvantages of the aforementioned devices and methods. In particular, the devices and methods should enable the production of sustainable packaging.

This object is addressed by a device for applying a strip containing at least one microcreped paper to a substrate, a method for applying a strip containing at least one microcreped paper to a substrate, a use of said device and a substrate containing a strip, obtained or obtainable by said method, with the features of the independent claims. Advantageous developments, which can be implemented individually or in combination, are presented in the description and the dependent claims.

1. (I) den zu einer Spule S gewickelten, ein mikrogekrepptes Papier enthaltenden Streifen P, wobei die Spule S um eine Spulenachse A_S drehbar gelagert ist;
2. (II) drehbar gelagerte Rollen R₁, R₂ und R₃ zum Führen des von der Spule zumindest teilweise abgewickelten Streifens P, wobei die Rolle R₁ der Spule S nachgeordnet ist, die Rolle R₂ der Rolle R₁ nachgeordnet ist und die Rolle R₃ der Rolle R₂ nachgeordnet ist; wobei
   • (II.1) die Rolle R₁ eine Drehachse A₁ aufweist, wobei der Winkel α₁ zwischen der Drehachse A₁ und der Spulenachse A_S 0 ° beträgt, in einer Toleranz von ± 5 °;
   • (II.2) die Rolle R₂ eine Drehachse A₂ aufweist, wobei der Winkel α₂ zwischen der Drehachse A₂ und der Spulenachse A_S 0 ° beträgt, in einer Toleranz von ± 10 °;
   • (II.3) die Rolle R₃ eine Drehachse A₃ aufweist, wobei der Winkel α₃ zwischen der Drehachse A₃ und der Drehachse A₂ 90 ° beträgt, in einer Toleranz von ± 1 °;
3. (III) mindestens eine der Rolle R₃ nachgeordnete Applikationsvorrichtung V zum Applizieren des Streifens P auf das Trägermaterial T;

wobei das mindestens eine, in dem zur Spule gewickelten Streifen P enthaltene mikrogekreppte Papier die folgenden Eigenschaften aufweist:

1. (a) eine Zugfestigkeit Fz in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei Fz ≥ 8 kN/m (Kilonewton/Meter), bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) eine Dehnbarkeit F_D in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei F_D ≥ 4 %, bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) eine Durchreißfestigkeit F_R in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei F_R ≥ 1200 mN (Millinewton), bestimmt gemäß ISO 1974:2012 "Paper - Determination of tearing resistance - Elmendorf method".

The present invention therefore relates to a device for applying a strip P containing at least one microcreped paper to a carrier material T, the strip P having a planar extent with a length l, a width b and a thickness d with I >> b > d and the device comprising:

1. (I) the strip P containing a microcreped paper wound into a spool S, the spool S being mounted for rotation about a spool axis _AS ;
2. (II) rotatably mounted rollers R ₁ , R ₂ and R ₃ for guiding the strip P unwound at least partially from the spool, the roller R ₁ being arranged downstream of the spool S, the roller R ₂ arranged downstream of the roller R ₁ and the roller R ₃ is subordinate to the role R ₂ ; whereby
   • (II.1) the reel R ₁ has an axis of rotation A ₁ , the angle α ₁ between the axis of rotation A ₁ and the spool axis A _s being 0°, with a tolerance of ± 5°;
   • (II.2) the reel R ₂ has an axis of rotation A ₂ , the angle α ₂ between the axis of rotation A ₂ and the spool axis A _s being 0°, with a tolerance of ± 10°;
   • (II.3) the roller R ₃ has an axis of rotation A ₃ , the angle α ₃ between the axis of rotation A ₃ and the axis of rotation A ₂ being 90°, with a tolerance of ± 1°;
3. (III) at least one application device V arranged downstream of the roller R ₃ for applying the strip P to the carrier material T;

the at least one microcreped paper contained in the strip P wound into the spool having the following characteristics:

1. (a) a tensile strength Fz in at least one direction within the areal extent of the strip P, where Fz ≥ 8 kN/m (kilonewton/meter), determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) an extensibility F _D in at least one direction within the two-dimensional extent of the strip P, where F _D ≥ 4%, determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) a tear strength F _R in at least one direction within the two-dimensional extent of the strip P, where F _R ≧1200 mN (Millinewton), determined according to ISO 1974:2012 "Paper - Determination of tearing resistance - Elmendorf method".

The at least one microcreped paper contained in the strip P preferably has a tensile strength Fz of 8 kN/m≦Fz≦22 kN/m, more preferably 10 kN/m≦Fz≦21 kN/m, more preferably 13 kN/m≦ F _Z ≤ 20 kN/m, such as 15 kN/m ≤ Fz ≤ 20 kN/m or 17 kN/m ≤ F _Z ≤ 20 kN/m or 19 kN/m ≤ F _Z ≤ 20 kN/m .

The at least one micro-creped paper contained in the strip P preferably has an extensibility F _D of 4% ≦F _D ≦16%, more preferably 6% ≦F _D ≦15.5%, more preferably 8% ≦F _D ≦15 % such as 10% ≤ F _D ≤ 15% or 12% ≤ F _D ≤ 15% or 14% ≤ F _D ≤ 15%.

The at least one microcreped paper contained in the strip P preferably has a tear strength F _R of 1200 mN≦F _R ≦4500 mN, more preferably 1500 mN≦F _R ≦4000 mN, more preferably 2000 mN≦F _R ≦3500 mN for example from 2500 mN≦ _FR ≦3500 mN or from 3000 mN≦ _FR ≦3500 mN.

The microcreped paper contained in the strip P preferably has a grammage G of at least 80 g/m ² , more preferably 80 g/m ² ≦G ≦180 g/m ² , more preferably 120 g/m ² ≦G ≦160 g/m ² such as from 120 g/m ² ≤ G ≤ 140 g/m ² or from 130 g/m ² ≤ G ≤ 150 g/m ² or from 140 g/m ² ≤ G ≤ 160 g/m ² on.

In principle, the at least one micro-creped paper contained in the strip P is micro-creped in at least one, preferably in at least two, directions within the two-dimensional extent.

1. (a) eine Zugfestigkeit Fz in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei 13 kN/m ≤ Fz ≤ 20 kN/m, bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) eine Dehnbarkeit F_D in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei 8 % ≤ F_D ≤ 15 %, bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) eine Durchreißfestigkeit F_R in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei von 2000 mN ≤ F_R ≤ 3500 mN, bestimmt gemäß ISO 1974:2012 "Paper- Determination of tearing resistance - Elmendorf method";

wobei das mindestens eine im Streifen P enthaltene mikrogekreppte Papier bevorzugt in mindestens zwei Richtungen innerhalb der flächigen Ausdehnung mikrogekreppt ist.Accordingly, the present invention further preferably relates to the above-mentioned device, wherein the at least one microcreped paper contained in the strip P wound into the spool has the following properties:

1. (a) a tensile strength Fz in at least one direction within the areal extent of the strip P, where 13 kN/m ≤ Fz ≤ 20 kN/m, determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) an extensibility F _D in at least one direction within the areal extent of the strip P, where 8 % ≤ F _D ≤ 15 %, determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) a tearing strength F _R in at least one direction within the areal extent of the strip P, with 2000 mN≦F _R ≦3500 mN, determined according to ISO 1974:2012 “Paper- Determination of tearing resistance - Elmendorf method”;

wherein the at least one microcreped paper contained in the strip P is preferably microcreped in at least two directions within the areal extent.

In principle, there are no particular restrictions with regard to the width b. The strip P preferably has a width b of 2 mm ≤ b ≤ 25 mm, more preferably 3 mm ≤ b ≤ 15 mm, more preferably 4 mm ≤ b ≤ 8 mm, such as 4 mm ≤ b ≤ 6 mm or 5 mm ≤ b ≤ 7 mm or from 6 mm ≤ b ≤ 8 mm.

In principle, there are no particular restrictions with regard to the thickness d b . The strip P preferably has a thickness d of 100 μm≦d≦400 μm, more preferably 150 μm≦d≦350 μm, more preferably 200 μm≦d≦300 μm, for example 200 μm≦d≦250 μm or 225 µm ≤ d ≤ 275 µm or from 250 µm ≤ d ≤ 300 µm.

Preferably from 95 to 100% by weight of the strip P consists of the at least one microcreped paper. More preferably from 98 to 100% by weight, more preferably from 99 to 100% by weight, more preferably from 99.5 to 100% by weight, more preferably from 99.9 to 100% by weight of the strip P consists of the at least one microcreped paper.

More preferably, the strip P contains a single microcreped paper, more preferably from 95 to 100% by weight, more preferably from 98 to 100% by weight, more preferably from 99 to 100% by weight, more preferably from 99, from 5% to 100%, more preferably from 99.9% to 100% by weight of the strip P consists of the single microcreped paper.

1. (a) eine Zugfestigkeit Fz in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei 13 kN/m ≤ Fz ≤ 20 kN/m, bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) eine Dehnbarkeit F_D in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei 8 % ≤ F_D ≤ 15 %, bestimmt gemäß ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) eine Durchreißfestigkeit F_R in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei von 2000 mN ≤ F_R ≤ 3500 mN, bestimmt gemäß ISO 1974:2012 "Paper- Determination of tearing resistance - Elmendorf method";

wobei das mindestens eine im Streifen P enthaltene mikrogekreppte Papier bevorzugt in mindestens zwei Richtungen innerhalb der flächigen Ausdehnung mikrogekreppt ist und wobei von 99.9 bis 100 Gew.-% des Streifens P aus dem mindestens einen mikrogekreppten Papier, bevorzugt aus einem einzigen mikrogekreppten Papier bestehen.Accordingly, the present invention further preferably relates to the above-mentioned device, wherein the at least one micro-creped paper contained in the strip P wound into the spool has the following properties:

1. (a) a tensile strength Fz in at least one direction within the areal extent of the strip P, where 13 kN/m ≤ Fz ≤ 20 kN/m, determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
2. (b) an extensibility F _D in at least one direction within the areal extent of the strip P, where 8 % ≤ F _D ≤ 15 %, determined according to ISO 1924-3:2005 "Paper and board - Determination of tensile properties - Part 3";
3. (c) a tearing strength F _R in at least one direction within the areal extent of the strip P, with 2000 mN≦F _R ≦3500 mN, determined according to ISO 1974:2012 “Paper- Determination of tearing resistance - Elmendorf method”;

wherein the at least one microcreped paper contained in the strip P is preferably microcreped in at least two directions within the areal extent and wherein from 99.9 to 100% by weight of the strip P consists of the at least one microcreped paper, preferably a single microcreped paper.

1. (i) eine erste Schicht, umfassend das mindestens eine, in einer der Ausführungen oben definierte Papier;
2. (ii) eine an einer ersten Seite der Papierschicht angeordnete Klebeschicht;
3. (iii) eine an einer zweiten, der ersten Seite gegenüberliegenden Seite der Papierschicht angeordnete haftmindernde Schicht, wobei die der Papierschicht abgewandte Oberfläche der haftmindernden Schicht derart ausgebildet ist, dass eine mit ihr in Kontakt gebrachte, der Papierseite abgewandte Oberfläche der Klebeschicht im Wesentlichen zerstörungsfrei ablösbar ist.

In principle, it is possible for the strip P to have at least the following layers:

1. (i) a first layer comprising the at least one paper defined in any embodiment above;
2. (ii) an adhesive layer disposed on a first side of the paper layer;
3. (iii) an adhesion-reducing layer arranged on a second side of the paper layer opposite the first side, wherein the surface of the adhesion-reducing layer facing away from the paper layer is formed in such a way that a surface of the adhesive layer that is brought into contact and facing away from the paper side can be detached essentially non-destructively is.

Furthermore, optionally, from 0 to 5% by weight of the adhesive layer according to (ii) consists of one or more organic solvents. Preferably from 0 to 3% by weight of the adhesive layer according to (ii) consists of one or more organic solvents. Further preferably from 0 to 1% by weight of the adhesive layer according to (ii) consists of one or more organic solvents. More preferably, from 0 to 0.5% by weight of the adhesive layer according to (ii) consists of one or more organic solvents. More preferably, from 0 to 0.1% by weight of the adhesive layer according to (ii) consists of one or more organic solvents.

The coil S is preferably a cross-wound coil, more preferably a cross-wound coil. For example, the strip P wound into the coil has a helical winding, the strip P preferably forming at least two layers and the pitch alternating between right-hand and left-hand from layer to layer. Preferably, the separation point T, at which the strip P detaches from the spool S during unwinding, executes a to-and-fro movement parallel to the spool axis A _S as the strip P is unwound.

In its non-unwound state, the coil S preferably has a diameter D of at most 500 mm, more preferably 100 mm≦D≦500 mm, more preferably 200 mm≦D≦450 mm, more preferably 300 mm≦D≦400 mm up.

The coil S preferably has an extension L in the direction of the coil axis A _S of at most 350 mm, more preferably 100 mm≦L≦350 mm, more preferably 160 mm≦L≦200 mm. For example, the coil S has an extension L in the direction of the coil axis A _S of L=180 mm.

The rollers R ₁ , R ₂ and R ₃ are preferably cylindrical rollers, with at least one of the rollers R ₁ , R ₂ and R ₃ being essentially flange-free on at least one side. The rollers R ₁ , R ₂ and R ₃ are preferably cylindrical rollers, with at least one of the rollers R ₁ , R ₂ and R ₃ being essentially flange-free on both sides. More preferably, the rollers R ₁ , R ₂ and R ₃ are cylindrical rollers, all the rollers R ₁ , R ₂ and R ₃ being essentially flange-free on at least one side. More preferably, the rollers R ₁ , R ₂ and R ₃ are cylindrical rollers, with all the rollers R ₁ , R ₂ and R ₃ being essentially flange-free on both sides. Such a flange-free configuration of the rollers is advantageous, for example, in order to avoid damage to the edges of the strip P when it is guided over the respective roller.

At least one of the rollers R ₁ , R ₂ and R ₃ is preferably a non-driven roller. More preferably, all of the rollers R ₁ , R ₂ and R ₃ are non-driven rollers.

The roller R ₁ preferably has an outside diameter in the range from 5 to 100 mm, more preferably in the range from 7 to 40 mm, more preferably in the range from 10 to 30 mm.

The roller R ₂ preferably has an outside diameter in the range from 5 to 100 mm, more preferably in the range from 15 to 50 mm, more preferably in the range from 25 to 30 mm.

The roller R ₃ preferably has an outside diameter in the range from 5 to 100 mm, more preferably in the range from 15 to 50 mm, more preferably in the range from 25 to 30 mm.

It is therefore more preferred that the roller R ₁ has an outer diameter in the range from 10 to 30 mm, the roller R ₂ has an outer diameter in the range from 25 to 30 mm, and the roller R ₃ has an outer diameter in the range from 25 to 30 mm.

At least one of the rollers R ₁ , R ₂ and R ₃ preferably has an extent of at least 100 mm along its respective axis of rotation. More preferably, at least two of the rollers R ₁ , R ₂ and R ₃ have an extension along their respective axis of rotation of at least 100 mm. More preferably, all rollers R ₁ , R ₂ and R ₃ have an extension along their respective axis of rotation of at least 100 mm.

Preferably, the extension of at least one of the rollers R ₁ , R ₂ and R ₃ , preferably all rollers R ₁ , R ₂ and R ₃ along their respective axis of rotation independently of one another is at least L + 10 mm, where L is the extension of the coil S in the direction of the Coil axis A is _S. More preferably, at least one of the rollers R ₁ , R ₂ and R ₃ , more preferably at least two of the rollers R ₁ , R ₂ and R ₃ , more preferably all of the rollers R ₁ , R ₂ and R ₃ extend along their respective axis of rotation in the range from (L + 10 mm) to (L + 20 mm), more preferably in the range from (L + 10 mm) to (L + 15 mm).

Preferably, the roller R ₃ is arranged such that when the strip P is guided, the first point of contact between the strip P and the roller R ₃ lies in the plane of an end face of the spool S or is spaced from this plane in a direction away from the spool . In particular, such an arrangement of the roll R ₃ is suitable for reciprocating movement of the strip P as it is unwound from the spool S, as above described to be converted into a linear, preferably stable, linear movement. A zig-zag movement of the strip P can thus be converted into a smooth movement during unwinding.

Preferably, the axis of rotation A ₁ of the reel R ₁ is positioned to be spatially movable in such a way that the reel R ₁ touches the spool S during the unwinding of the strip P. More preferably, the axis of rotation A ₁ of the roller R ₁ is positioned so that it can move spatially in such a way that the roller R ₁ touches the spool S in a linear manner while the strip P is being unwound. Furthermore, the axis of rotation A ₁ of the roll R ₁ is preferably positioned such that it can be moved spatially in such a way that the axis of rotation A ₁ executes a movement in the radial direction to the spool axis A _S while the strip P is being unwound.

The rollers R ₂ and R ₃ are preferably arranged as guide rollers that are spatially fixed axes of rotation.

The coil axis A _S is preferably arranged as a spatially fixed axis of rotation.

The axes of rotation A ₁ and A ₂ are preferably arranged in such a way that the free length of the strip P between the roller R ₁ and the roller R ₂ is in the range from 150 to 500 mm, more preferably in the range from 200 to 300 mm. The term "free length" as used herein means the length of strip P between the last point of contact of strip P with roller _R1 and the first point of contact of strip P with roller _R2 as strip P is passed thereover Roll.

The axes of rotation A ₂ and A ₃ are preferably arranged such that the free length of the strip P between the roller R ₂ and the roller R ₃ is in the range from 150 to 500 mm, more preferably in the range from 200 to 300 mm. The term "free length" as used herein means the length of strip P between the last point of contact of strip P with roller _R2 and the first point of contact of strip P with roller _R3 as strip P is passed thereover Roll.

According to a possible embodiment of the present invention, the roller R ₃ is the last roller for guiding the strip P before applying the strip P to the substrate T.

According to a further possible embodiment of the present invention, the device comprises, in addition to the three rollers R ₁ , R ₂ and R ₃ , a further rotatably mounted roller Roller R ₄ for guiding the strip P unwound at least partially from the spool, the roller R ₄ being arranged downstream of the roller R ₃ , wherein
(II.4) the roller R ₄ has an axis of rotation A ₄ , the angle α ₄ between the axis of rotation A ₄ and the axis of rotation A ₃ being 90°, with a tolerance of ± 1°.

The roller R ₄ preferably has a guide flange on at least one side, preferably on both sides. More preferably, the roller R ₄ has a guide flange on both sides. Furthermore, the guide flanges arranged on both sides are preferably at a distance from one another in the range from (b + 0.1 mm) to (b + 0.9 mm), more preferably in the range from (b + 0.2 mm) to (b + 0.8 mm), more preferably in the range from (b + 0.3 mm) to (b + 0.7 mm).

Preferably, roller R ₄ , if present, is the last roller for guiding strip P prior to application of strip P to substrate T.

According to a further possible embodiment of the present invention, the device additionally comprises a rotatably mounted roller R ₅ for guiding the strip P which has been at least partially unwound from the spool, with the roller R ₅ being arranged downstream of the roller R ₄ , with
(II.5) the roller R ₅ has an axis of rotation A ₅ , the angle α ₅ between the axis of rotation A ₅ and the axis of rotation A ₄ being 90°, with a tolerance of ± 1°.

The roller R ₅ preferably has a guide flange on at least one side, preferably on both sides. More preferably, the roller R ₅ has a guide flange on both sides. Furthermore, the guide flanges arranged on both sides are preferably at a distance from one another in the range from (b + 0.1 mm) to (b + 0.9 mm), more preferably in the range from (b + 0.2 mm) to (b + 0.8 mm), more preferably in the range from (b + 0.3 mm) to (b + 0.7 mm).

Preferably, the roller R ₅ , if present, is the last roller for guiding the strip P before applying the strip P to the substrate T.

According to the present invention, the number of additional rollers to the rollers R ₁ , R ₂ and R ₃ depends, among other things, on the distance between the roller _{R 3} and the carrier material T T of at least 300 mm to provide at least one additional role to the roles R ₁ , R ₂ and R ₃ .

According to the present invention, the number of additional rolls to the rolls R ₁ , R ₂ and R ₃ depends inter alia on the movement of the strip P on the roll R ₃ . For example, in the case of a deviation of the movement of the strip P on the roll R ₃ from a linear movement, for example in the case of such a deviation by at least 2%, it may be preferable to have an additional roll R ₄ or preferably a pair of rolls R ₄ and R ₅ to be provided, which preferably has a spatial arrangement which is analogous to the spatial arrangement of the rollers R ₂ and R ₃ .

As far as the application device V is concerned, it is preferably set up in such a way that it exerts at least one force on the strip P in the direction of the carrier material T. More preferably, the application device V is set up in such a way that the force is exerted via at least one rubber roller. Alternatively or additionally, the application device V is preferably set up in such a way that the force is exerted via compressed air.

The device preferably additionally comprises at least one adhesive application device K for applying at least one adhesive layer, preferably an adhesive layer that contains at least one hot-melt adhesive, more preferably an adhesive layer that consists of at least one hot-melt adhesive. While it is possible in principle to apply the adhesive layer to the strip P before it is applied to the carrier material T, it is preferred in the context of the present invention that the adhesive layer is applied to the carrier material T before the strip P is applied to the carrier material having the adhesive layer T is applied. The adhesive layer applied to the carrier material preferably has a width of at most the width b of the strip P.

The device preferably additionally comprises at least one cutting unit for cutting the strip P to length, the at least one cutting unit preferably being arranged downstream of the last roll, for example roll R ₃ or roll R ₄ or roll R ₅ .

The device preferably additionally comprises at least one drive unit for driving the strip P and at least one brake unit for braking the strip P. The drive unit and the brake unit are preferably set up to control a rotary movement of the spool S. The rotational movement of the spool S preferably has an unwinding speed v of the strip P from the spool S of 0 m/min<v≦ 250 m/min, more preferably from 100 m/min≦v≦200 m/min. For example, the drive unit and the braking unit are set up to control the rotational movement of the spool S depending on a state of the application device V and/or the cutting unit, preferably to adapt the rotational movement to an application process and/or a cutting process. The drive unit and the braking unit are preferably arranged downstream of the last roller, for example roller R ₃ or roller R ₄ or roller R ₅ . Alternatively preferably, the drive unit is arranged to drive the strip P by accelerating rotation of the reel _R2 or the reel _R3 and the braking unit is arranged to brake the strip P by reducing rotation of the spool S. For example, the drive unit is arranged in the reel R ₂ or in the reel R ₃ , while the braking unit is arranged in the spool S, for example.

While there are basically no particular restrictions for the carrier material T, it is preferred according to the present invention that the carrier material T is at least one packaging blank. The packaging blank is preferably a packaging blank made of paper and/or cardboard, the packaging blank preferably being a crate, a box, a folding box or an envelope.

The present invention further relates to a method for applying a strip P containing at least one microcreped paper to a carrier material T. The method comprises the steps specified in more detail below. These steps can be performed in the order listed. However, a different sequence is also possible in principle. Furthermore, two or more of the method steps mentioned can be carried out with a time overlap or at the same time. Furthermore, one or more of the process steps mentioned can be carried out once or repeatedly. In addition to the steps mentioned, the method can comprise further method steps.

1. a) Bereitstellen einer Vorrichtung wie oben beschrieben oder entsprechend gemäß einer der hierin nachfolgend beschriebenen Ausführungsformen;
2. b) Bereitstellen des mindestens einen Trägermaterials T;
3. c) Führen des Streifens P von der Spule S zu der Applikationsvorrichtung V über die mindestens drei Rollen R₁, R₂ und R₃;
4. d) Applizieren des Streifens P auf dem Trägermaterial T mittels der Applikationsvorrichtung V.

The procedure includes the following steps:

1. a) providing a device as described above or according to one of the embodiments described hereinafter;
2. b) providing the at least one carrier material T;
3. c) guiding the strip P from the spool S to the application device V via the at least three rollers R ₁ , R ₂ and R ₃ ;
4. d) Application of the strip P to the carrier material T using the application device V.

Step a) preferably comprises threading the strip at least between the rollers R ₁ , R ₂ and R ₃ .

Step c) includes, for example, driving the spool S and the rollers R ₁ , R ₂ and R ₃ via a withdrawal of the strip P by moving the carrier material T. Alternatively or additionally, step c) includes, for example, controlling a movement of the strip P by means of a drive unit and a brake unit, as above optionally present in the device.

In step c), the method preferably includes controlling a rotary movement of the spool S, so that the strip P is unwound from the spool S at an unwinding speed v of 0 m/min <v ≤ 250 m/min, preferably of 100 m/min ≤ v ≤ 200 m/min.

The application in step d) preferably includes exerting at least one force on the strip P in the direction of the carrier material T.

Preferably, the method further comprises a step e) preceding step d), wherein
e) Provision of an adhesive application device K as above optionally present in the device and application of the adhesive layer to the carrier material T by means of the adhesive application device K.

The strip P is preferably applied in step d) to the adhesive layer applied to the carrier material, so that the adhesive layer connects the carrier material T and the strip P.

Further, the present invention relates to an apparatus or a method as described herein, wherein the strip P is a tear strip.

The present invention further relates to the use of a device as described herein for applying a strip P to a carrier material T.

The present invention further relates to a carrier material T containing a strip P, obtained or obtainable by a method as described herein.

1. 1. Vorrichtung zum Aufbringen eines mindestens ein mikrogekrepptes Papier enthaltenden Streifens P auf ein Trägermaterial T, wobei der Streifen P eine flächige Ausdehnung mit einer Länge l, einer Breite b und einer Dicke d mit I >> b > d aufweist, wobei die Vorrichtung umfasst:
   1. (I) den zu einer Spule S gewickelten, ein mikrogekrepptes Papier enthaltenden Streifen P, wobei die Spule S um eine Spulenachse A_S drehbar gelagert ist;
   2. (II) drehbar gelagerte Rollen R₁, R₂ und R₃ zum Führen des von der Spule zumindest teilweise abgewickelten Streifens P, wobei die Rolle R₁ der Spule S nachgeordnet ist, die Rolle R₂ der Rolle R₁ nachgeordnet ist und die Rolle R₃ der Rolle R₂ nachgeordnet ist; wobei
      • (II.1) die Rolle R₁ eine Drehachse A₁ aufweist, wobei der Winkel α₁ zwischen der Drehachse A₁ und der Spulenachse A_S 0 ° beträgt, in einer Toleranz von ± 5 °;
      • (II.2) die Rolle R₂ eine Drehachse A₂ aufweist, wobei der Winkel α₂ zwischen der Drehachse A₂ und der Spulenachse A_S 0 ° beträgt, in einer Toleranz von ± 10 °;
      • (II.3) die Rolle R₃ eine Drehachse A₃ aufweist, wobei der Winkel α₃ zwischen der Drehachse A₃ und der Drehachse A₂ 90 ° beträgt, in einer Toleranz von ± 1 °;
   3. (III) mindestens eine der Rolle R₃ nachgeordnete Applikationsvorrichtung V zum Applizieren des Streifens P auf das Trägermaterial T;
   wobei das mindestens eine, in dem zur Spule gewickelten Streifen P enthaltene mikrogekreppte Papier die folgenden Eigenschaften aufweist:
   1. (a) eine Zugfestigkeit Fz in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei Fz ≥ 8 kN/m, bestimmt gemäß ISO 1924-3;
   2. (b) eine Dehnbarkeit F_D in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei F_D ≥ 4 %, bestimmt gemäß ISO 1924-3;
   3. (c) eine Durchreißfestigkeit F_R in mindestens eine Richtung innerhalb der flächigen Ausdehnung des Streifens P, wobei F_R ≥ 1200 mN, bestimmt gemäß ISO 1974.
2. 2. Vorrichtung gemäß Ausführungsform 1, wobei 8 kN/m ≤ Fz ≤ 22 kN/m, bevorzugt 10 kN/m ≤ F_Z ≤ 21 kN/m, weiter bevorzugt 13 kN/m ≤ F_Z ≤ 20 kN/m.
3. 3. Vorrichtung gemäß Ausführungsform 1 oder 2, wobei 4 % ≤ F_D ≤ 16 %, bevorzugt 8 % ≤ F_D ≤ 15 %.
4. 4. Vorrichtung gemäß einer der Ausführungsformen 1 bis 3, wobei 1200 mN ≤ F_R ≤ 4500 mN, bevorzugt 1500 mN ≤ F_R ≤ 4000 mN, weiter bevorzugt 2000 mN ≤ F_R ≤ 3500 mN.
5. 5. Vorrichtung gemäß einer der Ausführungsformen 1 bis 4, wobei das mindestens eine, im Streifen P enthaltene Papier eine Grammatur G von mindestens 80 g/m² aufweist, bevorzugt 80 g/m² ≤ G ≤ 180 g/m², weiter bevorzugt 120 g/m² ≤ G ≤ 160 g/m².
6. 6. Vorrichtung gemäß einer der Ausführungsformen 1 bis 5, wobei das im Streifen P enthaltene mindestens eine mikrogekreppte Papier in mindestens zwei Richtungen innerhalb der flächigen Ausdehnung mikrogekreppt ist.
7. 7. Vorrichtung gemäß einer der Ausführungsformen 1 bis 6, wobei 2 mm ≤ b ≤ 25 mm, bevorzugt 3 mm ≤ b ≤ 15 mm, weiter bevorzugt 4 mm ≤ b ≤ 8 mm.
8. 8. Vorrichtung gemäß einer der Ausführungsformen 1 bis 7, wobei 100 µm ≤ d ≤ 400 µm, bevorzugt 150 µm ≤ d ≤ 350 µm, weiter bevorzugt 200 µm ≤ d ≤ 300 µm.
9. 9. Vorrichtung gemäß einer der Ausführungsformen 1 bis 8, wobei von 95 bis 100 Gew.-%, bevorzugt von 98 bis 100 Gew.-%, weiter bevorzugt von 99 bis 100 Gew.- %, weiter bevorzugt von 99,5 bis 100 Gew.-%, weiter bevorzugt von 99,9 bis 100 Gew.-% des Streifens P aus dem mindestens einen mikrogekreppten Papier bestehen.
10. 10. Vorrichtung gemäß einer der Ausführungsformen 1 bis 9, wobei der Streifen P ein einziges mikrogekrepptes Papier enthält und bevorzugt von 95 bis 100 Gew.-%, weiter bevorzugt von 98 bis 100 Gew.-%, weiter bevorzugt von 99 bis 100 Gew.-%, weiter bevorzugt von 99.5 bis 100 Gew.-%, weiter bevorzugt von 99.9 bis 100 Gew.- % des Streifens P aus dem einzigen mikrogekreppten Papier bestehen.
11. 11. Vorrichtung gemäß einer der Ausführungsformen 1 bis 8, wobei der Streifen P zumindest folgende Schichten aufweist:
    1. (i) eine erste Schicht umfassend das mindestens eine, in den Ausführungsformen 1 bis 8 Papier definierte Papier;
    2. (ii) eine an einer ersten Seite der Papierschicht angeordnete Klebeschicht;
    3. (iii) eine an einer zweiten, der ersten Seite gegenüberliegenden Seite der Papierschicht angeordnete haftmindernde Schicht, wobei die der Papierschicht abgewandte Oberfläche der haftmindernden Schicht derart ausgebildet ist, dass eine mit ihr in Kontakt gebrachte, der Papierseite abgewandte Oberfläche der Klebeschicht im Wesentlichen zerstörungsfrei ablösbar ist.
12. 12. Vorrichtung gemäß Ausführungsform 11, wobei von 0 bis 5 Gew.-%, bevorzugt von 0 bis 3 Gew.-%, weiter bevorzugt von 0 bis 1 Gew.-%, weiter bevorzugt von 0 bis 0,5 Gew.-%, weiter bevorzugt von 0 bis 0,1 Gew.-% der Klebeschicht gemäß (ii) aus einem oder mehreren organischen Lösungsmitteln bestehen.
13. 13. Vorrichtung gemäß einer der Ausführungsformen 1 bis 12, wobei die Spule S eine Kreuzspule, bevorzugt eine über Kreuz gewickelte Spule ist.
14. 14. Vorrichtung gemäß Ausführungsform 13, wobei der Abtrennpunkt T, an dem sich der Streifen P beim Abwickeln von der Spule S löst, beim Abwickeln des Streifens P eine Hin- und Her-Bewegung parallel zur Spulenachse A_S ausführt.
15. 15. Vorrichtung gemäß einer der Ausführungsformen 1 bis 14, wobei die Spule S in ihrem nicht-abgewickelten Zustand einen Durchmesser D von höchstens 500 mm aufweist, wobei bevorzugt 100 mm ≤ D ≤ 500 mm, weiter bevorzugt 200 mm ≤ D ≤ 450 mm, weiter bevorzugt 300 mm ≤ D ≤ 400 mm.
16. 16. Vorrichtung gemäß einer der Ausführungsformen 1 bis 15, wobei die Spule S eine Ausdehnung L in Richtung der Spulenachse A_S von höchstens 350 mm aufweist, wobei bevorzugt 100 mm ≤ L ≤ 350 mm, weiter bevorzugt 160 mm ≤ L ≤ 200mm.
17. 17. Vorrichtung gemäß einer der Ausführungsformen 1 bis 16, wobei die Rollen R₁, R₂ und R₃ zylinderförmige Rollen sind, wobei bevorzugt mindestens eine der Rollen R₁, R₂ und R₃, weiter bevorzugt alle Rollen R₁, R₂ und R₃ an mindestens einer, bevorzugt auf beiden Seiten im Wesentlichen flanschfrei ausgebildet sind.
18. 18. Vorrichtung gemäß einer der Ausführungsformen 1 bis 17, wobei mindestens eine der Rollen R₁, R₂ und R₃, bevorzugt alle Rollen R₁, R₂ und R₃ antriebsfreie Rollen sind.
19. 19. Vorrichtung gemäß einer der Ausführungsformen 1 bis 18, wobei die Rolle R₁ einen Außendurchmesser im Bereich von 5 bis 100 mm, bevorzugt im Bereich von 7 bis 40 mm, weiter bevorzugt im Bereich von 10 bis 30 mm aufweist.
20. 20. Vorrichtung gemäß einer der Ausführungsformen 1 bis 19, bevorzugt gemäß Ausführungsform 19, wobei die Rolle R₂ einen Außendurchmesser im Bereich von 5 bis 100 mm, bevorzugt im Bereich von 15 bis 50 mm, weiter bevorzugt im Bereich von 25 bis 30 mm aufweist.
21. 21. Vorrichtung gemäß einer der Ausführungsformen 1 bis 20, bevorzugt gemäß Ausführungsform 20, weiter bevorzugt gemäß Ausführungsform 19 und 20, wobei die Rolle R₃ einen Außendurchmesser im Bereich von 5 bis 100 mm, bevorzugt im Bereich von 15 bis 50 mm, weiter bevorzugt im Bereich von 25 bis 30 mm aufweist.
22. 22. Vorrichtung gemäß einer der Ausführungsformen 1 bis 21, wobei mindestens eine der Rollen R₁, R₂ und R₃, bevorzugt alle Rollen R₁, R₂ und R₃ eine Ausdehnung entlang ihrer jeweiligen Drehachse von mindestens 100 mm aufweisen.
23. 23. Vorrichtung gemäß Ausführungsform 22 insoweit als Ausführungsform 22 von Ausführungsform 16 abhängt, wobei die Ausdehnung mindestens einer der Rollen R₁, R₂ und R₃, bevorzugt aller Rollen R₁, R₂ und R₃ entlang ihrer jeweiligen Drehachse unabhängig voneinander mindestens L + 10 mm beträgt und bevorzugt im Bereich von (L + 10 mm) bis (L + 20 mm), weiter bevorzugt im Bereich von (L + 10 mm) bis (L + 15 mm) liegt.
24. 24. Vorrichtung gemäß einer der Ausführungsformen 1 bis 23, wobei die Rolle R₃ derart angeordnet ist, dass beim Führen des Streifens P der erste Berührpunkt zwischen dem Streifen P und der Rolle R₃ in der Ebene einer Stirnseite der Spule S liegt oder von dieser Ebene in eine Richtung weg von der Spule beabstandet angeordnet ist,
25. 25. Vorrichtung gemäß einer der Ausführungsformen 1 bis 24, wobei die Drehachse A₁ der Rolle R₁ derart räumlich beweglich positioniert ist, dass die Rolle R₁ während des Abwickelns des Streifens P die Spule S berührt, bevorzugt linienförmig berührt.
26. 26. Vorrichtung gemäß Ausführungsform 25, wobei die Drehachse A₁ der Rolle R₁ während des Abwickelns des Streifens P eine Bewegung in radialer Richtung zur Spulenachse A_S ausführt.
27. 27. Vorrichtung gemäß einer der Ausführungsformen 1 bis 26, wobei die Rollen R₂ und R₃ Führungsrollen mit räumlich feststehenden Drehachsen sind und wobei die Spulenachse A_S eine räumlich feststehende Drehachse ist.
28. 28. Vorrichtung gemäß einer der Ausführungsformen 1 bis 27, wobei die Drehachsen A₁ und A₂ derart angeordnet sind, dass eine freie Länge des Streifens P zwischen der Rolle R₁ und der Rolle R₂ im Bereich von 150 bis 500mm, bevorzugt im Bereich von 200 bis 300 mm liegt.
29. 29. Vorrichtung gemäß einer der Ausführungsformen 1 bis 28, wobei die Drehachsen A₂ und A₃ derart angeordnet sind, dass eine freie Länge des Streifens P zwischen der Rolle R₂ und der Rolle R₃ im Bereich von 150 bis 300 mm, bevorzugt im Bereich von 200 bis 250 mm liegt.
30. 30. Vorrichtung gemäß einer der Ausführungsformen 1 bis 29, wobei die Rolle R₃ die letzte Rolle zum Führen des Streifens P vor dem Aufbringen des Streifens P auf das Trägermaterial T ist.
31. 31. Vorrichtung gemäß einer der Ausführungsformen 1 bis 29, gemäß (II) zusätzlich umfassend eine drehbar gelagerte Rolle R₄ zum Führen des von der Spule zumindest teilweise abgewickelten Streifens P, wobei die Rolle R₄ der Rolle R₃ nachgeordnet ist, wobei
    (II.4) die Rolle R₄ eine Drehachse A₄ aufweist, wobei der Winkel α₄ zwischen der Drehachse A₄ und der Drehachse A₃ 90 ° beträgt, in einer Toleranz von ± 1 °.
32. 32. Vorrichtung gemäß Ausführungsform 31, wobei die Rolle R₄ an mindestens einer Seite, bevorzugt an beiden Seiten einen Führungsflansch aufweist.
33. 33. Vorrichtung gemäß Ausführungsform 32, wobei die an beiden Seiten angeordneten Führungsflansche einen Abstand zueinander im Bereich von (b + 0,1 mm) bis (b + 0,9 mm), bevorzugt im Bereich von (b + 0,2 mm) bis (b + 0,8 mm), weiter bevorzugt im Bereich von (b + 0,3 mm) bis (b + 0,7 mm) aufweisen.
34. 34. Vorrichtung gemäß Ausführungsform 32 oder 33, wobei die Rolle R₄ die letzte Rolle zum Führen des Streifens P vor dem Aufbringen des Streifens P auf das Trägermaterial T ist.
35. 35. Vorrichtung gemäß Ausführungsform 31 bis 33, zusätzlich umfassend eine drehbar gelagerte Rolle R₅ zum Führen des von der Spule zumindest teilweise abgewickelten Streifens P, wobei die Rolle R₅ der Rolle R₄ nachgeordnet ist, wobei (II.5) die Rolle R₅ eine Drehachse A₅ aufweist, wobei der Winkel α₅ zwischen der Drehachse A₅ und der Drehachse A₄ 90 ° beträgt, in einer Toleranz von ± 1°.
36. 36. Vorrichtung gemäß Ausführungsform 35, wobei die Rolle R₅ an mindestens einer Seite, bevorzugt an beiden Seiten einen Führungsflansch aufweist.
37. 37. Vorrichtung gemäß Ausführungsform 36, wobei die an beiden Seiten angeordneten Führungsflansche einen Abstand zueinander im Bereich von (b + 0,1 mm) bis (b + 0,9 mm), bevorzugt im Bereich von (b + 0,2 mm) bis (b + 0,8 mm), weiter bevorzugt im Bereich von (b + 0,3 mm) bis (b + 0,7 mm) aufweisen.
38. 38. Vorrichtung gemäß Ausführungsform 35 bis 37, wobei die Rolle R₅ die letzte Rolle zum Führen des Streifens P vor dem Aufbringen des Streifens P auf das Trägermaterial T ist.
39. 39. Vorrichtung gemäß einer der Ausführungsformen 1 bis 38, wobei die Applikationsvorrichtung V derart eingerichtet ist, dass sie auf den Streifen P mindestens eine Kraft in Richtung hin zu dem Trägermaterial T ausübt.
40. 40. Vorrichtung gemäß Ausführungsform 39, wobei die Applikationsvorrichtung V derart eingerichtet ist, dass die Kraft über mindestens eine Gummiwalze ausgeübt wird.
41. 41. Vorrichtung gemäß Ausführungsform 39 oder 40, wobei die Applikationsvorrichtung V derart eingerichtet ist, dass die Kraft über Druckluft ausgeübt wird.
42. 42. Vorrichtung gemäß einer der Ausführungsformen 1 bis 41, wobei die Vorrichtung zusätzlich mindestens eine Klebe-Applikationsvorrichtung K zum Auftragen mindestens einer Klebeschicht, bevorzugt umfassend mindestens einen Schmelzklebstoff, umfasst.
43. 43. Vorrichtung gemäß Ausführungsform 42, wobei die Klebeschicht auf das Trägermaterial T aufgetragen wird.
44. 44. Vorrichtung gemäß einer der Ausführungsformen 1 bis 43, wobei die Vorrichtung zusätzlich mindestens eine Ablängeinheit zum Ablängen des Streifens P umfasst, wobei die mindestens eine Ablängeinheit bevorzugt der letzten Rolle, wie in Ausführungsform 30, 34 oder 38 definiert, nachgeordnet ist.
45. 45. Vorrichtung gemäß einer der Ausführungsformen 1 bis 44, wobei die Vorrichtung zusätzlich mindestens eine Antriebseinheit zum Antreiben des Streifens P und mindestens eine Bremseinheit zum Abbremsen des Streifens P umfasst.
46. 46. Vorrichtung gemäß Ausführungsform 45, wobei die Antriebseinheit und die Bremseinheit eingerichtet sind, um eine Drehbewegung der Spule S zu steuern, wobei die Drehbewegung der Spule S bevorzugt eine Abwickelgeschwindigkeit v des Streifens P von der Spule S von 0 m/min < v ≤ 250m/min ist, bevorzugt von 100 m/min ≤ v ≤ 200 m/min aufweist.
47. 47. Vorrichtung gemäß Ausführungsform 45 oder 46, wobei die Antriebseinheit und die Bremseinheit der letzten Rolle, wie in einer der Ausführungsform 30, 34 oder 38 definiert, nachgeordnet sind.
48. 48. Vorrichtung gemäß Ausführungsform 45 oder 46, wobei die Antriebseinheit derart angeordnet ist, um den Streifen P durch beschleunigen einer Drehbewegung der Rolle R₂ oder der Rolle R₃ anzutreiben, wobei die Bremseinheit derart angeordnet ist, um den Streifen P durch verringern einer Drehbewegung der Spule S abzubremsen.
49. 49. Verfahren zum Aufbringen eines mindestens ein mikrogekrepptes Papier enthaltenden Streifens P auf ein Trägermaterial T, wobei das Verfahren die folgenden Schritte umfasst:
    1. a) Bereitstellen einer Vorrichtung gemäß einer der Ausführungsformen 1 bis 48;
    2. b) Bereitstellen des mindestens einen Trägermaterials T;
    3. c) Führen des Streifens P von der Spule S zu der Applikationsvorrichtung V über die mindestens drei Rollen R₁, R₂ und R₃;
    4. d) Applizieren des Streifens P auf dem Trägermaterial T mittels der Applikationsvorrichtung V.
50. 50. Verfahren gemäß Ausführungsform 49, wobei das Trägermaterial T mindestens ein Verpackungsrohling ist.
51. 51. Verfahren gemäß Ausführungsform 50, wobei der Verpackungsrohling aus Papier oder Karton besteht und ausgewählt ist aus der Gruppe bestehend aus einer Kiste, einer Schachtel, einer Faltschachtel und einem Umschlag.
52. 52. Verfahren gemäß einer der Ausführungsformen 49 bis 51, wobei das Applizieren in Schritt d) ein Ausüben mindestens einer Kraft auf den Streifen P in Richtung hin zu dem Trägermaterial T umfasst.
53. 53. Verfahren gemäß einer der Ausführungsformen 49 bis 52, wobei das Verfahren weiterhin einen dem Schritt d) vorausgehenden Schritt e) umfasst, wobei e) Bereitstellen einer Klebe-Applikationsvorrichtung K wie in Ausführungsform 42 definiert und Auftragen der Klebeschicht auf das Trägermaterial T mittels der Klebe-Applikationsvorrichtung K.
54. 54. Verfahren gemäß der Ausführungsform 53, wobei der Streifen P in Schritt d) auf die auf das Trägermaterial aufgetragene Klebeschicht aufgebracht wird, so dass die Klebeschicht das Trägermaterial T und den Streifen P verbindet.
55. 55. Verfahren gemäß einer der Ausführungsformen 49 bis 54, wobei der Streifen P ein Aufreißstreifen ist.
56. 56. Vorrichtung gemäß einer der Ausführungsformen 1 bis 48, wobei der Streifen P ein Aufreißstreifen ist.
57. 57. Verwendung einer Vorrichtung gemäß einer der Ausführungsformen 1 bis 48 zum Aufbringen eines mindestens ein mikrogekrepptes Papier enthaltenden Streifens P auf ein Trägermaterial T.
58. 58. Ein Trägermaterial T, enthaltend ein mindestens ein mikrogekrepptes Papier enthaltenden Streifen P, wobei das Trägermaterial T erhalten oder erhältlich ist durch ein Verfahren gemäß einer der Ausführungsformen 49 bis 55.

The present invention as described above is further described by the following set of embodiments and combinations of embodiments, where the combinations result from the appropriate dependencies and back-references. In particular, it should be noted that where a range of embodiments is mentioned - such as in the context of an expression such as "Apparatus according to any one of embodiments 1 to 5" - each individual embodiment in that range is deemed to be explicit to those skilled in the art is disclosed, this expression is thus understood by the person skilled in the art as synonymous with the expression "device according to one of embodiments 1, 2, 3, 4 and 5". It should also be explicitly pointed out that the following set of embodiments does not represent the set of patent claims determining the scope of protection, but rather a suitably structured part of the description which is directed towards general and preferred aspects of the present invention.

1. 1. Device for applying a strip P containing at least one micro-creped paper to a carrier material T, the strip P having a planar extent with a length l, a width b and a thickness d with I>>b>d, the device comprising :
   1. (I) the strip P containing a microcreped paper wound into a spool S, the spool S being mounted for rotation about a spool axis _AS ;
   2. (II) rotatably mounted rollers R ₁ , R ₂ and R ₃ for guiding the strip P unwound at least partially from the spool, the roller R ₁ being arranged downstream of the spool S, the roller R ₂ arranged downstream of the roller R ₁ and the roller R ₃ is subordinate to the role R ₂ ; whereby
      • (II.1) the reel R ₁ has an axis of rotation A ₁ , the angle α ₁ between the axis of rotation A ₁ and the spool axis A _s being 0°, with a tolerance of ± 5°;
      • (II.2) the reel R ₂ has an axis of rotation A ₂ , the angle α ₂ between the axis of rotation A ₂ and the spool axis A _s being 0°, with a tolerance of ± 10°;
      • (II.3) the roller R ₃ has an axis of rotation A ₃ , the angle α ₃ between the axis of rotation A ₃ and the axis of rotation A ₂ being 90°, with a tolerance of ± 1°;
   3. (III) at least one application device V arranged downstream of the roller R ₃ for applying the strip P to the carrier material T;
   the at least one microcreped paper contained in the strip P wound into the spool having the following characteristics:
   1. (a) a tensile strength Fz in at least one direction within the areal extent of the strip P, where Fz ≥ 8 kN/m, determined according to ISO 1924-3;
   2. (b) an extensibility F _D in at least one direction within the areal extent of the strip P, where F _D ≥ 4%, determined according to ISO 1924-3;
   3. (c) a tear strength F _R in at least one direction within the areal extent of the strip P, where F _R ≥ 1200 mN, determined according to ISO 1974.
2. 2. Device according to embodiment 1, wherein 8 kN/m≦Fz≦22 kN/m, preferably 10 kN/m≦ _Fz ≦21 kN/m, more preferably 13 kN/m≦ _Fz ≦20 kN/m.
3. 3. Device according to embodiment 1 or 2, wherein 4%≦F _D ≦16%, preferably 8%≦F _D ≦15%.
4. 4. Device according to one of embodiments 1 to 3, wherein 1200 mN≦F _R ≦4500 mN, preferably 1500 mN≦F _R ≦4000 mN, more preferably 2000 mN≦F _R ≦3500 mN.
5. 5. The device according to one of embodiments 1 to 4, wherein the at least one paper contained in the strip P has a grammage G of at least 80 g/m ² , preferably 80 g/m ² ≦G ≦180 g/m ² , more preferably 120 g/ ^m2 ≤ G ≤ 160 g/ ^m2 .
6. 6. Device according to one of the embodiments 1 to 5, wherein the at least one micro-creped paper contained in the strip P is micro-creped in at least two directions within the areal extent.
7. 7. The device according to any one of embodiments 1 to 6, where 2 mm≦b≦25 mm, preferably 3 mm≦b≦15 mm, more preferably 4 mm≦b≦8 mm.
8. 8. The device according to any one of embodiments 1 to 7, where 100 μm≦d≦400 μm, preferably 150 μm≦d≦350 μm, more preferably 200 μm≦d≦300 μm.
9. 9. The device according to any one of embodiments 1 to 8, wherein from 95 to 100% by weight, preferably from 98 to 100% by weight, more preferably from 99 to 100% by weight, more preferably from 99.5 to 100 % by weight, more preferably from 99.9 to 100 % by weight of the strip P consisting of the at least one microcreped paper.
10. 10. Device according to one of the embodiments 1 to 9, wherein the strip P contains a single microcreped paper and preferably from 95 to 100% by weight, more preferably from 98 to 100% by weight, more preferably from 99 to 100% by weight. -%, more preferably from 99.5 to 100%, more preferably from 99.9 to 100% by weight of the strip P consists of the sole microcreped paper.
11. 11. Device according to one of the embodiments 1 to 8, wherein the strip P has at least the following layers:
    1. (i) a first layer comprising the at least one paper defined in embodiments 1 to 8 paper;
    2. (ii) an adhesive layer disposed on a first side of the paper layer;
    3. (iii) an adhesion-reducing layer arranged on a second side of the paper layer opposite the first side, wherein the surface of the adhesion-reducing layer facing away from the paper layer is formed in such a way that a surface of the adhesive layer that is brought into contact and facing away from the paper side can be detached essentially non-destructively is.
12. 12. The device according to embodiment 11, wherein from 0 to 5% by weight, preferably from 0 to 3% by weight, more preferably from 0 to 1% by weight, more preferably from 0 to 0.5% by weight , more preferably from 0 to 0.1% by weight of the adhesive layer according to (ii) consist of one or more organic solvents.
13. 13. The device according to any one of embodiments 1 to 12, wherein the coil S is a cross-wound coil, preferably a cross-wound coil.
14. 14. The device according to embodiment 13, wherein the separation point T, at which the strip P detaches from the spool S during unwinding, executes a reciprocating movement parallel to the spool axis A _S as the strip P is unwound.
15. 15. The device according to one of embodiments 1 to 14, wherein the coil S has a diameter D of at most 500 mm in its unwound state, with preferably 100 mm ≤ D ≤ 500 mm, more preferably 200 mm ≤ D ≤ 450 mm, more preferably 300mm≦D≦400mm.
16. 16. Device according to one of embodiments 1 to 15, wherein the coil S has an extension L in the direction of the coil axis A _S of at most 350 mm, with preferably 100 mm≦L≦350 mm, more preferably 160 mm≦L≦200 mm.
17. 17. The device according to any one of embodiments 1 to 16, wherein the rollers R ₁ , R ₂ and R ₃ are cylindrical rollers, with preferably at least one of the rollers R ₁ , R ₂ and R ₃ , more preferably all rollers R ₁ , R ₂ and R ₃ are essentially flange-free on at least one side, preferably on both sides.
18. 18. Device according to one of embodiments 1 to 17, wherein at least one of the rollers R ₁ , R ₂ and R ₃ , preferably all of the rollers R ₁ , R ₂ and R ₃ are non-driven rollers.
19. 19. The device according to any one of embodiments 1 to 18, wherein the roller R ₁ has an outside diameter in the range from 5 to 100 mm, preferably in the range from 7 to 40 mm, more preferably in the range from 10 to 30 mm.
20. 20. The device according to one of embodiments 1 to 19, preferably according to embodiment 19, wherein the roller R ₂ has an outer diameter in the range from 5 to 100 mm, preferably in the range from 15 to 50 mm, more preferably in the range from 25 to 30 mm .
21. 21. Device according to one of embodiments 1 to 20, preferably according to embodiment 20, more preferably according to embodiment 19 and 20, wherein the roller R ₃ has an outer diameter in the range from 5 to 100 mm, preferably in the range from 15 to 50 mm, more preferably in the range of 25 to 30 mm.
22. 22. The device according to any one of embodiments 1 to 21, wherein at least one of the rollers R ₁ , R ₂ and R ₃ , preferably all rollers R ₁ , R ₂ and R ₃ , have an extension along their respective axis of rotation of at least 100 mm.
23. 23. The device according to embodiment 22 insofar as embodiment 22 depends on embodiment 16, wherein the extension of at least one of the rollers R ₁ , R ₂ and R ₃ , preferably all rollers R ₁ , R ₂ and R ₃ along their respective axis of rotation independently of one another is at least L + 10 mm and preferred is in the range from (L + 10 mm) to (L + 20 mm), more preferably in the range from (L + 10 mm) to (L + 15 mm).
24. 24. Device according to one of the embodiments 1 to 23, wherein the roller R ₃ is arranged such that when the strip P is guided, the first point of contact between the strip P and the roller R ₃ lies in the plane of an end face of the spool S or of this plane is spaced in a direction away from the coil,
25. 25. Device according to one of the embodiments 1 to 24, wherein the axis of rotation A ₁ of the roller R ₁ is positioned such that it can be moved spatially in such a way that the roller R ₁ touches the spool S while the strip P is being unwound, preferably touches it linearly.
26. 26. Device according to embodiment 25, wherein the axis of rotation A ₁ of the roll R ₁ executes a movement in the radial direction to the spool axis A _S during the unwinding of the strip P.
27. 27. Device according to one of the embodiments 1 to 26, wherein the rollers R ₂ and R ₃ are guide rollers with spatially fixed axes of rotation and wherein the spool axis A _S is a spatially fixed axis of rotation.
28. 28. Device according to one of the embodiments 1 to 27, wherein the axes of rotation A ₁ and A ₂ are arranged such that a free length of the strip P between the roller R ₁ and the roller R ₂ is in the range of 150 to 500 mm, preferably in the range is from 200 to 300 mm.
29. 29. Device according to one of the embodiments 1 to 28, wherein the axes of rotation A ₂ and A ₃ are arranged such that a free length of the strip P between the roller R ₂ and the roller R ₃ is in the range from 150 to 300 mm, preferably in range from 200 to 250 mm.
30. 30. The device according to any one of embodiments 1 to 29, wherein the roller R ₃ is the last roller for guiding the strip P before the strip P is applied to the substrate T.
31. 31. Device according to one of the embodiments 1 to 29, according to (II) additionally comprising a rotatably mounted roller R ₄ for guiding the from the coil at least partially unwound strip P, wherein the roll R ₄ is downstream of the roll R ₃ , wherein
    (II.4) the roller R ₄ has an axis of rotation A ₄ , the angle α ₄ between the axis of rotation A ₄ and the axis of rotation A ₃ being 90°, with a tolerance of ± 1°.
32. 32. Device according to embodiment 31, wherein the roller R ₄ has a guide flange on at least one side, preferably on both sides.
33. 33. Device according to embodiment 32, wherein the guide flanges arranged on both sides are at a distance from one another in the range from (b + 0.1 mm) to (b + 0.9 mm), preferably in the range from (b + 0.2 mm) to (b + 0.8 mm), more preferably in the range from (b + 0.3 mm) to (b + 0.7 mm).
34. 34. Apparatus according to embodiment 32 or 33, wherein the roller R ₄ is the last roller for guiding the strip P before the strip P is applied to the substrate T.
35. 35. The device according to embodiment 31 to 33, additionally comprising a rotatably mounted roller R ₅ for guiding the strip P which has been at least partially unwound from the spool, the roller R ₅ being arranged downstream of the roller R ₄ , with (II.5) the roller R ₅ has an axis of rotation A ₅ , the angle α ₅ between the axis of rotation A ₅ and the axis of rotation A ₄ being 90°, with a tolerance of ± 1°.
36. 36. Device according to embodiment 35, wherein the roller R ₅ has a guide flange on at least one side, preferably on both sides.
37. 37. The device according to embodiment 36, wherein the guide flanges arranged on both sides are at a distance from one another in the range from (b + 0.1 mm) to (b + 0.9 mm), preferably in the range from (b + 0.2 mm) to (b + 0.8 mm), more preferably in the range from (b + 0.3 mm) to (b + 0.7 mm).
38. 38. Device according to embodiment 35 to 37, wherein the roller R ₅ is the last roller for guiding the strip P before applying the strip P to the substrate T.
39. 39. The device according to one of embodiments 1 to 38, wherein the application device V is set up in such a way that it exerts at least one force on the strip P in the direction of the carrier material T.
40. 40. The device according to embodiment 39, wherein the application device V is set up in such a way that the force is exerted via at least one rubber roller.
41. 41. The device according to embodiment 39 or 40, wherein the application device V is set up in such a way that the force is exerted via compressed air.
42. 42. Device according to one of embodiments 1 to 41, wherein the device additionally comprises at least one adhesive application device K for applying at least one adhesive layer, preferably comprising at least one hot-melt adhesive.
43. 43. Device according to embodiment 42, wherein the adhesive layer is applied to the carrier material T.
44. 44. Device according to one of embodiments 1 to 43, wherein the device additionally comprises at least one cutting unit for cutting the strip P to length, wherein the at least one cutting unit is preferably arranged downstream of the last roll, as defined in embodiment 30, 34 or 38.
45. 45. Device according to one of the embodiments 1 to 44, wherein the device additionally comprises at least one drive unit for driving the strip P and at least one braking unit for braking the strip P.
46. 46. The device according to embodiment 45, wherein the drive unit and the brake unit are set up to control a rotational movement of the spool S, the rotational movement of the spool S preferably having an unwinding speed v of the strip P from the spool S of 0 m/min<v≦ 250 m/min, preferably 100 m/min≦v≦200 m/min.
47. 47. Apparatus according to embodiment 45 or 46, wherein the drive unit and the braking unit are downstream of the last roller as defined in any one of embodiment 30, 34 or 38.
48. 48. Apparatus according to embodiment 45 or 46, wherein the drive unit is arranged to drive the strip P by accelerating a rotational movement of the roller R ₂ or the roller R ₃ , the braking unit being arranged to drive the strip P by reducing a rotational movement to brake the coil S.
49. 49. Method for applying a strip P containing at least one microcreped paper to a carrier material T, the method comprising the following steps:
    1. a) providing a device according to any one of embodiments 1 to 48;
    2. b) providing the at least one carrier material T;
    3. c) guiding the strip P from the spool S to the application device V via the at least three rollers R ₁ , R ₂ and R ₃ ;
    4. d) Application of the strip P to the carrier material T using the application device V.
50. 50. The method according to embodiment 49, wherein the carrier material T is at least one packaging blank.
51. 51. The method according to embodiment 50, wherein the packaging blank consists of paper or cardboard and is selected from the group consisting of a box, a box, a folding box and an envelope.
52. 52. The method according to any one of embodiments 49 to 51, wherein the application in step d) comprises exerting at least one force on the strip P in the direction of the carrier material T.
53. 53. The method according to any one of embodiments 49 to 52, wherein the method further comprises a step e) preceding step d), wherein e) providing an adhesive application device K as defined in embodiment 42 and applying the adhesive layer to the carrier material T by means of the Adhesive application device K.
54. 54. The method according to embodiment 53, wherein the strip P is applied to the adhesive layer applied to the carrier material in step d), so that the adhesive layer connects the carrier material T and the strip P.
55. 55. The method according to any one of embodiments 49 to 54, wherein the strip P is a tear strip.
56. 56. The device according to any one of embodiments 1 to 48, wherein the strip P is a tear strip.
57. 57. Use of a device according to one of embodiments 1 to 48 for applying a strip P containing at least one microcreped paper to a carrier material T.
58. 58. A carrier material T containing a strip P containing at least one microcreped paper, wherein the carrier material T is obtained or obtainable by a method according to one of embodiments 49 to 55.

Brief description of the figures

Further details and features of the present invention result from the description of exemplary embodiments. The respective features can be implemented individually or in combination with one another. The invention is not limited to the exemplary embodiments. The exemplary embodiments are shown schematically in the figures. The same reference numerals in the individual figures designate elements that are the same or have the same function or that correspond to one another in terms of their functions.

Figuren 1 bis 3

verschiedene Ausführungsbeispiele einer Vorrichtung zum Aufbringen eines ein mikrogekrepptes Papier enthaltenden Streifens P auf ein Trägermaterial T in Seitenansicht (Figuren 1 und 3) sowie in perspektivischer Ansicht (Figur 2).

Show in detail:

Figures 1 to 3

various exemplary embodiments of a device for applying a strip P containing a microcreped paper to a carrier material T in a side view ( figures 1 and 3 ) as well as in a perspective view ( figure 2 ).

Description of the exemplary embodiments

The figures are described together. The Figures 1 to 3 show various exemplary embodiments of a device 110 for applying a strip P 112 containing a microcreped paper to a carrier material T 114 in a side view ( figures 1 and 3 ) as well as in a perspective view ( figure 2 ). The carrier material 114 is not part of the device 110 and therefore in the figures 1 and 3 shown by dashed lines by way of example. The strip 112 has a two-dimensional extent with a length l, a width b and a thickness d, where the following applies: l>>b>d.

The device 110 comprises the strip 112 wound into a spool S 116 containing the microcreped paper, the spool 116 being mounted rotatably about a spool axis A _S 117 . The coil 116 preferably has a length L in the direction of the coil axis A _S 117 of at most 310 mm and a diameter D of at most 500 mm. The device 110 further comprises three rotatably mounted rollers R ₁ 118, R ₂ 120 and R ₃ 122 for guiding the strip 112 at least partially unwound from the spool 116, a direction of movement of the strip 112 being illustrated in the figures by arrows. Reel R ₁ 118 is downstream from spool 116, reel R ₂ 120 is downstream from reel R ₁ 118, and reel R ₃ 122 is downstream from reel R ₂ . The roller R ₁ 118 has an axis of rotation A ₁ 124, the angle α ₁ between the axis of rotation A ₁ and the spool axis A _s being 0° with a tolerance of ±5°. The axis of rotation A ₁ 124 and the coil axis A _S 117 are preferably aligned parallel to one another, for example along the z-axis of the Cartesian coordinate system shown as an example in the figures. The roller R ₂ 120 has an axis of rotation A ₂ 126, the angle α ₂ between the axis of rotation A ₂ and the spool axis A _s being 0° with a tolerance of ±10°. The axis of rotation A ₂ 126 and the coil axis A _S 117 are preferably aligned parallel to one another, for example the Cartesian coordinate system also shown along the z-axis. The roller R ₃ 122 has an axis of rotation A ₃ 128, the angle α ₃ between the axis of rotation A ₃ and the axis of rotation A ₂ 126 of the roller R ₂ being 90° with a tolerance of ±1°. The axis of rotation A ₃ 128 and the axis of rotation A ₂ 126 are preferably aligned orthogonally to one another, for example along the x and z axes of the in figure 1 Cartesian coordinate system shown or along the x and z axes as exemplified in FIGS figures 2 and 3 shown.

Roller R ₃ 122 is preferably arranged such that when strip 112 is being guided, a first point of contact 129 between strip 112 and roller R ₃ 122 is in the same plane as an end face 131 of spool 116, for example around a point caused by the unwinding of the Strip 112 induced by the coil 116 reciprocating movement of the strip 112, for example a zig-zag movement along the z-axis of the coordinate system shown in the figures, into a stable rectilinear movement.

Furthermore, the device 110 comprises at least one application device V 130 for applying the strip 112 to the carrier material 114. The application device 130 is preferably set up to exert at least one force in the direction towards the carrier material 114 on the strip 112, this force is in figure 3 illustrated by an arrow.

As exemplified in figure 2 shown, the device preferably further comprises at least one housing 132 for the spatial attachment of the coil 116 and the rollers R ₁ 118, R ₂ 120 and R ₃ 122. The roller R ₁ 118 is preferably attached in such a way that the roller R ₁ 118 the Coil 116 touches line-shaped during the unwinding of the strip 112. For this purpose, the axis of rotation A ₁ 124 can more preferably perform a spatial movement in the radial direction toward the coil axis 117 . More preferably, as exemplified in figure 2 illustrated, such a fastening of the roller R ₁ 118 can be accomplished by means of two spring elements 134 and a groove 136 arranged in the housing 132 . Other fastenings, not shown here, which are familiar to a person skilled in the art, for example alternative mechanical and/or hydraulic as well as electronic position adjustments, are also possible.

Furthermore, the device 110 preferably comprises at least one further cylindrical roller R ₄ 137, the roller R ₄ 137 being mounted such that it can rotate about an axis of rotation 138 and being positioned downstream of the roller R ₃ 122. Preferably, the rollers R ₁ 118, R ₂ 120, R ₃ 122 and also the roller R ₄ 137 of the device 110 are passive, non-driven rollers which are set in rotation via a withdrawal of the strip 112. In figure 3 the deduction of the strip 112 is illustrated by way of example by an arrow in the negative γ-direction on the right-hand edge of the figure below the carrier material 114. For example, the deduction can be produced by a movement of the carrier material 114 .

Device 110 also preferably includes an adhesive application device 140 for applying adhesive 142, preferably solvent-free adhesive, to carrier material 114. Device 110 also preferably includes a cutting unit 144 for cutting strip 112 to length. Device 110 is preferred for producing tear strips 146 used.

Reference List

110

contraption

112

stripes P

114

Support material T

116

Coil S

117

Spool axis A _S

118

role R ₁

120

roll R ₂

122

Roll R ₃

124

Axis of rotation A ₁

126

Axis of rotation A ₂

128

Axis of rotation A ₃

129

touchpoint

130

application device v

131

face

132

Housing

134

spring element

136

groove

137

Roll R ₄

138

Axis of rotation A ₄

140

Adhesive application device K

142

adhesive

144

cutting unit

146

tear strip

Claims (10)

Device (110) for applying a strip P (112) containing at least one micro-creped paper to a carrier material T (114), the strip P (112) having a planar extent with a length I, a width b and a thickness d with I >> b > d, the device comprising: (I) the strip P (112) containing a microcreped paper wound into a spool S (116), the spool S (116) being supported for rotation about a spool axis _AS (117); (II) rotatably mounted rollers R ₁ (118), R ₂ (120) and R ₃ (122) for guiding the strip P (112) at least partially unwound from the spool (116), the roller R ₁ (118) of the spool S (116) is downstream, reel R ₂ (120) is downstream from reel R ₁ (118), and reel R ₃ (122) is downstream from reel R ₂ (120); whereby (II.1) the roller R ₁ (118) has an axis of rotation A ₁ (124), the angle α ₁ between the axis of rotation A ₁ (124) and the spool axis A _S (117) being 0°, within a tolerance of ± 5°; (II.2) the roller R ₂ (120) has an axis of rotation A ₂ (126), the angle α ₂ between the axis of rotation A ₂ (126) and the spool axis A _s (117) being 0°, within a tolerance of ± 10°; (II.3) the roller R ₃ (122) has an axis of rotation A ₃ (128), the angle α ₃ between the axis of rotation A ₃ (128) and the axis of rotation A ₂ (126) being 90°, within a tolerance of ±1°; (III) at least one application device V (130) arranged downstream of the roller R ₃ (122) for applying the strip P (112) to the carrier material T (114); the at least one microcreped paper contained in the strip P (112) wound into the spool (116) having the following properties: (a) a tensile strength Fz in at least one direction within the areal extent of the strip P (112), where Fz ≥ 8 kN/m, determined according to ISO 1924-3; (b) an extensibility F _D in at least one direction within the surface extent of the strip P (112), where F _D ≥ 4%, determined according to ISO 1924-3; (c) a tear strength F _R in at least one direction within the areal extent of the strip P (112), where F _R ≥ 1200 mN, determined according to ISO 1974. Device (110) according to claim 1, wherein 8 kN/m ≤ Fz ≤ 22 kN/m, preferably 10 kN/m ≤ Fz ≤ 21 kN/m, more preferably 13 kN/m ≤ Fz ≤ 20 kN/m, wherein 4 % ≤ F _D ≤ 16%, preferably 8% ≤ F _D ≤ 15%, and where 1200 mN ≤ F _R ≤ 4500 mN, preferably 1500 mN ≤ F _R ≤ 4000 mN, more preferably 2000 mN ≤ F _R ≤ 3500 mN. Device (110) according to claim 1 or 2, wherein the rollers R ₁ (118), R ₂ (120) and R ₃ (122) are cylindrical rollers, preferably at least one of the rollers R ₁ (118), R ₂ (120 ) and R ₃ (122), more preferably all rollers R ₁ (118), R ₂ (120) and R ₃ (122) are formed on at least one side, preferably on both sides, essentially without a flange. Apparatus (110) according to any one of claims 1 to 3, wherein the roller R ₃ (122) is arranged such that when the strip P (112) is guided, the first point of contact (129) between the strip P (112) and the roller R ₃ (122) lies in the plane of an end face (131) of the coil S (116) or is arranged at a distance from this plane in a direction away from the coil (116), Apparatus (110) according to any one of claims 1 to 4, wherein the axis of rotation A ₁ (124) of the reel R ₁ (118) is spatially movably positioned such that the reel R ₁ (118) during unwinding of the strip P (112) touches the spool S (116), the axis of rotation A ₁ (124) of the reel R ₁ (118) performing a movement in the radial direction towards the spool axis A _s (117) during unwinding of the strip P (112). Device (110) according to any one of claims 1 to 5, wherein the axes of rotation A ₁ (124) and A ₂ (126) are arranged such that the free length of the strip P (112) between the roller R ₁ (118) and the Roll R ₂ (120) is in the range from 150 to 500 mm, preferably in the range from 200 to 300 mm, and the axes of rotation A ₂ (126) and A ₃ (128) are arranged in such a way that the free length of the strip P (112) between the roller R ₂ (120) and the roller R ₃ (122) is in the range from 150 to 300 mm, preferably in the range from 200 to 250 mm. Device (110) according to one of Claims 1 to 6, according to (II) additionally comprising a rotatably mounted roller R ₄ (137) for guiding the strip P (112) at least partially unwound from the spool (116), the roller R ₄ (137) is arranged downstream of the roller R ₃ (122), where
(II.4) the roller R ₄ (137) has an axis of rotation A ₄ (138), the angle α ₄ between the axis of rotation A ₄ (138) and the axis of rotation A ₃ (128) being 90°, within a tolerance of ±1°. Device (110) according to one of Claims 1 to 7, wherein the device (110) additionally comprises at least one adhesive application device K (140) for applying at least one adhesive layer, wherein the device (110) preferably additionally comprises at least one cutting unit (144) for Cutting the strip P (112) to length and wherein the device (110) preferably additionally comprises at least one drive unit for driving the strip P (112) and at least one braking unit for braking the strip P (112). Method (110) for applying a strip P (112) containing at least one microcreped paper to a substrate T (114), the method comprising the following steps: a) providing a device (110) according to any one of claims 1 to 8; b) providing the at least one carrier material T (114); c) feeding the strip P (112) from the spool S (116) to the applicator V (130) via the at least three rollers R ₁ (118), R ₂ (120) and R ₃ (122); d) application of the strip P (112) to the carrier material T (114) by means of the application device V (130). The method according to claim 9, wherein the method further comprises a step e) preceding the step d), wherein
e) providing an adhesive application device K (140) as defined in claim 8 and applying the adhesive layer to the carrier material T (114) by means of the adhesive application device K (140).

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