WO2014177385A1

WO2014177385A1 - Pallettised or pallettisable arrangement and method for the production thereof

Info

Publication number: WO2014177385A1
Application number: PCT/EP2014/057766
Authority: WO
Inventors: Oliver Gassner; Claus RASCH; Michael Steiner; Anselm EBERT
Original assignee: Paul Hartmann Ag
Priority date: 2013-05-03
Filing date: 2014-04-16
Publication date: 2014-11-06
Also published as: DE102013208136A1; ES2636241T3; EP2991905A1; EP2991905B1

Abstract

The invention relates to a pallettised or pallettisable arrangement for storage and transport purposes of a plurality of bag packages (4) containing hygiene articles (2) as primary packages (6), the bag packages (4) not being accommodated in cardboard outer packaging, having the following features: the arrangement comprises a plurality of bag packages (4) assembled to form separate secondary packages (12), said secondary packages (12) being arranged next to each other and above each other in a first direction (14); a respective secondary package (12) is formed in that a plurality of bag packages (4) is arranged to form a cuboid shape (10) and said cuboid shape (10) is completely surrounded and at the same time compressed by two separate stretch film wrappings (20, 22), which are oriented rotated by 90 degrees to each other; the secondary packages (12) that are arranged next to each other and above each other are held against each other by a multiplicity of stretch film windings (48) to form the arrangement; the stretch film windings (48) comprise top windings (54), bottom windings (56) and helical windings (58) that run in a helical manner from the top windings (54) towards the bottom windings (56), and helical windings (60) that run in a helical manner from the bottom windings (56) towards the top windings (54), supporting windings (62, 64) additionally being provided between the top windings (54) and the bottom windings (56) in a plane substantially perpendicular to the first direction (14), said windings substantially completely covering each other in the respective plane.

Description

Palletized or palletizable assembly and method for its manufacture

Palletized or palletizable arrangement for storage and transport purposes of a plurality of sanitary containing bag packages, wherein the bag packages are not included in cardboard packaging. A bag pack with typically folded hygiene articles received therein is referred to below as a primary pack. The term "hygiene article" is understood to mean, in particular, diapers, incontinence products, feminine hygiene products, panty liners, but also absorbent bed liners or underlays. Such incontinence articles are typically compliantly flexible and compressible, resulting in packaging on the one hand with the possibility of volume reduction and on the other hand with stability issues in stacking as packages form.

It is known to package bag packages containing hygiene articles in cartons, whereby a stable unit of a plurality of bag packages can be realized, which allows these units to be arranged side by side and one above the other in cartons and suitably, for example by means of straps or by means of stretchable packaging films, to fix, so that extensive containers can be formed.

For the production of cartonage-free arrangements of bag packages, the use of so-called edge support angles has already been proposed, see for example EP 2 116 479 A1, which extend along vertical edges and are intended to have a stabilizing effect. However, their attachment is expensive. Furthermore, it is known to use so-called cardboard trays, each covering an entire horizontal position stacked bag packages and thereby prevent horizontal breakout of bags from this situation, also these cartons are to form a flat footprint for the bag packages the next following situation.

Furthermore, it is known to stabilize palletized assemblies by helical or horizontal stretch film windings. These prior art windings operate without the use of cardboard to form stable units, however, only in the context of charge units that provide some reasonable stability, ie. H. Dimensional stability and stability, which is usually not the case with sanitary containing bag packages due to the typically encountered compressibility. In order to increase the stability of bag packages containing compressible articles, EP 0 805 114 B1 has further proposed holding at least two bag packs against one another by means of stretch film wrapping and thereby compressing them to 20 to 70% of their original volume. Even by this measure alone can not be a satisfactory arrangement for storage and transport purposes realize.

The present invention has for its object to provide a palletized or palettable arrangement of sanitary containing bag packages, in which without the use of cardboard trays and without the use of edge support brackets or additional cardboard packaging of multiple bag packages in a cost-effective stable and dimensionally stable container for storage and transport purposes can be obtained.

This object is achieved according to the invention by a palletized or palettable arrangement having the following features:

- The arrangement comprises a plurality of separate secondary packages combined units of a plurality of bag packages, said secondary packages are arranged on a base next to each other and in a first direction perpendicular to this base one above the other;
a respective secondary package is formed by disposing a respective one of a plurality of bag packages in a cuboid shape and fully enclosing and thereby compressing this cuboid form of two separate stretch film wrappings oriented 90 degrees apart in a respective resulting circumferential direction of the stretch film wrapping;
the secondary packages stacked on top of each other and in the first direction are held together by a plurality of stretch film windings to form the assembly;
the stretch film windings comprise head windings substantially completely overlapping each other, foot windings substantially completely overlapping each other, and helical windings helically leading from the head windings toward the foot windings, and helical windings helically extending from the foot windings toward lead the head windings, wherein additionally between the head windings and the foot windings support windings in a plane substantially perpendicular to the first direction, that is substantially parallel to the head windings and the foot windings are provided, which completely overlap in the respective level substantially.

Starting from bag packages, each containing a plurality of in particular 5 to 60, typically folded hygiene articles, units of several such bag packages, about 2 to 24, in particular 2 to 10 and in particular 4 to 8 bag packages are formed, wherein a cuboid shape and in particular a cube shape is obtained. Due to the two stretch film envelopes oriented at 90 ° to each other, a secondary pack compressed with respect to the original volume of the cuboid shape is obtained. It has further been found in accordance with the invention that these secondary packages can be stably fixed side by side and in the first direction one above the other without the use of cardboard packaging by providing stretch film windings comprising head windings, foot windings and helical windings around the stacked arrangement as mentioned above. The head windings are provided at the upper end of the assembly, that is, facing away from the base, and substantially with a circumferential direction extending in a plane substantially perpendicular to the first direction. They overlap completely, which means that a film web overlaps the preceding film web and preferably also the remaining film webs by at least 90% in width. In the same way, the foot windings run in the base-facing lower region of the arrangement. If the base, for example in the form of a pallet, is integrated into the arrangement, then the foot windings always comprise at least part of the base, so that the secondary packings are connected to the base or fixed to the base in this manner.

Furthermore, helical windings running in two directions, ie with opposite pitch of the "threads", are provided. They preferably connect directly to the head windings or foot windings, but this does not necessarily have to be the case. Furthermore, the aforementioned support windings are provided between the head windings and the foot windings, whose circumferential or winding direction - as in the head windings and foot windings - extends in a plane substantially perpendicular to the first direction. Also, the support windings have a substantially complete coverage, which in turn means that an overlap in the width of at least 90% is realized between stacked support windings. As with the head windings and the foot windings, there is no helical course with a defined screw direction in the support windings. It would be conceivable that the support windings are formed immediately after screw windings or vice versa, for example by a helical winding merges into a support winding or, in particular subsequently, a support winding merges into a helical winding or is continued.

Due to the interaction of the measures described above, according to the invention, a palletized or palletizable arrangement which satisfies the requirements of stability and dimensional stability required for this purpose is obtained for storage and transport purposes.

To produce the secondary packs, a unit of several relatively unstable primary packs is provided with 90 ° rotated mutually oriented stretch film wrappings and thereby compressed.

According to a first variant of the invention, it proves to be advantageous if the first attached to the cuboid stretch film wrapping is attached to the cuboid shape such that the stretch film wrapping forming flat material web runs parallel to the four longest sides of the cuboid shape. This is shown in FIG. 7a.

According to a second variant of the invention, the stretch film wrapping attached first to the cuboid shape is attached to the parallelepiped shape such that a flat material web forming the stretch film wrapping runs parallel to only two of the four longest sides of the cuboid shape. This is shown in FIG. 7b.

In both variants, the first-applied stretch film wrap is overlapped on two opposite sides of the cuboid shape by the second-attached stretch film wrap. The first stretch film wrapping thus lies directly against the cuboid shape on all four sides, while the second stretch film wrapping bears directly against the cuboid shape only on two opposite sides. Depending on the geometry of the cuboid shape, one or the other variant of the attachment of the two stretch film wrappings may prove advantageous in order to achieve a compression of the units, preferably in the range between 10 and 35%, in particular between 15 and 25%, wherein the Cuboid shape also behaves stable during the attachment of the first and second stretch film wrapping, so while not break out.

The first stretch film wrapping applied to the parallelepiped shape and the second stretch wrapping applied to the parallelepiped form rotated by 90 degrees thus result in a secondary packing in which the flat material webs forming the stretch film wrapping lie twice over one another on two opposite sides of the cuboid shape. Thus, thicker secondary packaging film areas are obtained without having to use a thick films for this purpose. Overall, a stabilization of this secondary pack is achieved on two opposite sides. These double layers also help prevent friction damage to the secondary package. Particularly advantageously, the double-lying flat material webs are formed on the two longest sides of the cuboid shape of the secondary packing; This achieves a particularly well-stabilized secondary pack.

In a further embodiment of the invention, it proves to be particularly advantageous if the folded hygiene products are arranged with their flat sides lying together and forming a stacking form in a respective bag pack and the orientation of the stack shape within those bag packages that form a secondary pack is the same and the stretch film wrapping attached first to the cuboid shape is attached to the parallelepiped shape such that a flat material web forming the stretch film wrapping runs on two opposite sides of the parallelepiped shape parallel to the flat sides of the hygienic articles. This ensures that in the course of attaching the first inner stretch film wrapping the flat sides of the folded sanitary articles are pressed against each other; The hygiene articles are thus further compressed in their stacking direction, resulting in improved dimensional stability.

According to a variant of the invention, it proves to be particularly advantageous if the folded hygiene articles are arranged with their flat sides lying against each other and forming a stacking form in a respective bag pack and the orientation of the stack shape within those bag packages which form a secondary pack is the same and the stretch film wrapping attached first to the cuboid shape is attached to the parallelepiped shape such that a flat material web forming the stretch film wrapping runs along the edges of the folded hygienic articles and thus orthogonal to their flat sides. Thus, the stretch film wrapping secondly attached to the cuboid form extends parallel to the flat sides of the sanitary articles on two opposite sides of the parallelepiped shape. This ensures that in the course of attaching the first inner stretch film wrapping first the bag packs are fixed together and then only in the course of attaching the second outer stretch film wrapping the flat sides of the folded hygiene products are pressed against each other. The hygiene articles are then further compressed in the stacking direction in the second step, which leads to greater dimensional stability. This second variant is particularly advantageous if the flat material webs forming the first and second stretch film wrappings are stretched to different extents during application to the cuboid shape, in particular if the second and thus outer stretch film wrapping is stretched to a greater extent than the flat material web forming the first stretch film wrapping. Thus, the folded sanitary articles can be compressed further in their stacking direction and damage to the hygiene articles by folding or crushing at the edges of the folded hygiene articles can be kept low.

The build-up of tension in the stretch film material caused by the stretching of the stretch film material then causes the compression of the secondary packing, of the bag packs or of the final hygiene articles arranged therein.

In principle, it would be conceivable for the two separate stretch film envelopes oriented mutually rotated by 90 ° to be attached by a single flat material web unwound in a respective circumferential direction, in particular also by a multiple wrapping. On the other hand, it proves to be advantageous if at least one and preferably both stretch film wrappings are each formed by two flat material webs of stretch film material fed endlessly on opposite sides of the cuboid shape and along the cuboid shape by separating two sections from the endlessly supplied flat material webs the flat material webs at two opposite ends of the cuboid shape against each other applied, separated and connected, in particular welded. In this way, one can realize a one-way oriented in a machine direction endless production of secondary packages. The respective cuboid unit of several bag packages is guided between the two endlessly supplied flat material webs in the machine. The preferred sequence of making the one, and preferably both, stretch film wrappings is such that with respect to a machine front end of the cuboid shape, the two sheets of flat material are joined and welded together and joined together. Against this connected end of the two flat material webs, the cuboid shape is pressed, such that there is a build-up of tension between the cuboid shape and the two flat material webs. The cuboid shape is effectively pressed against the weld seam between the two flat material webs and thereby compressed. At the rear end of the parallelepiped shape in the machine direction, the flat webs under tension are separated again and joined together, in particular welded. The term "welding off" is understood to mean a typically simultaneously occurring connection and separation of the flat material webs. The welding can be done thermally or by ultrasound.

For the production of the two mutually rotated by 90 ° stretch film wrappings, it proves to be advantageous if the first stretch film wrapping forming flat material web of stretch film material during application to the cuboid shape by at least 10%, in particular by at least 12% and more particularly by at most 30% , in particular by not more than 25%, in particular by not more than 20%, in particular by not more than 18%, in particular by not more than 15% and in particular by 12-15%. The stretching of the flat material web of stretch film material is preferably carried out directly during the application, and advantageously by the fact that viewed relative to each other, the cuboid shape is conveyed at a greater speed against the connected end of the flat material webs than the flat material webs are supplied. The development of the flat material webs of a feed roller is thus relatively slower than the insertion speed of the cuboid shape between the flat material webs. Advantageously, the elongation of the first stretch film wrap is 12 to 15%.

Furthermore, it proves to be advantageous that a flat material web of stretch film material forming the second stretch film wrapping is stretched, at least as strongly, preferably more strongly, during application to the parallelepiped shape than the flat material web forming the first stretch film wrapping. It is in particular during the application to the cuboid shape by at least 12%, in particular by at least 15%, in particular by at least 18%, in particular by at most 40%, in particular by at most 35%, in particular by at most 30%, in particular by at most 25% and further stretched in particular by 18 - 25%. The film thickness of the flat material web of stretch film material is typically 20 to 80 .mu.m, in particular 20-60 .mu.m, more particularly, it may be 30-50 .mu.m. Polyethylene films have proven themselves for this purpose.

It also proves to be advantageous if a respective flat material web of stretch film material forming the first and / or second stretch film wrapping has a width orthogonal to a longitudinal extent, ie circumferential direction, winding direction of the flat material web, which is at least 80%, in particular at least 90%, more particularly at least 100 % of a respective dimension corresponds to the cuboid sides to be enveloped, and more particularly 1 - 10%, in particular 2 - 5% is greater than the relevant dimension of the cuboid side to be enveloped. Advantageously, the widths of the first and second stretch film wrapping forming flat material web are coordinated so that the cuboid shape is completely enveloped on all sides. If the width of the flat material web is greater than the width of the square side to be wrapped, on the one hand ensures a secure complete enclosure of the respective square side, and on the other hand, the circumferentially or winding direction extending edges and corners of the cuboid shape are surrounded by the flat material and something also rounded.

Furthermore, it proves to be advantageous that a volume reduction by attaching the first and second stretch film wrappings of the cuboid shape relative to the volume of the cuboid shape before attaching the Stretchfolienumhüllungen at least 10%, in particular at least 12%, in particular at least 15%, and at most 35%, in particular not more than 30%, in particular not more than 25% and in particular 15-25%. For the respective determination of the volume, the dimensions of the resulting cuboid shape before and after the attachment of the two stretch film envelopes are simply determined by dimensioning, wherein approximately rounded corners or edges are mathematically not taken into account.

In attaching the stretch film windings surrounding the juxtaposed and stacked secondary packages, the head windings, the foot windings, the screw windings, and the support windings could each be mounted separately through portions of stretch film material to be used therefor. However, it proves to be advantageous if the head windings, the foot windings and the coil windings and preferably also the support windings are formed by a single continuously wound flat material web.

With regard to the attachment and formation of the helical windings, it proves to be advantageous if the helical windings, starting from the head windings in the direction of the foot windings and the helical windings starting from the foot windings in the direction of the head windings differ in the degree of overlap, in particular the helical windings starting from the foot windings in FIG Direction of the head windings have a greater degree of coverage than the helical windings starting from the head windings in the direction of the foot windings. The degree of overlapping is understood here in relation to the immediately preceding wound material web.

For this purpose, it proves to be advantageous that the leading from the head windings in the direction of the foot windings coil windings a coverage of less than 40%, in particular less than 35%, in particular less than 30%, in particular more than 20% and more in particular from 23 to 27% to each other.

Furthermore, it proves to be advantageous that the leading from the foot windings in the direction of the head windings coil windings a coverage of more than 40%, in particular more than 50%, in particular more than 60%, in particular more than 65%, in particular of less than 80% and more particularly of 65-75% to each other.

The width of the stretch film winding forming flat material web is between 100 - 750 mm, in particular between 250 and 600 mm, preferably about 500 mm. The width of the flat film web forming the stretch film winding preferably corresponds to the extent of a secondary pack in the first direction. Further preferably, the width of the flat film web forming the stretch film winding exceeds the extent of a secondary pack in the first direction, since advantageously overfilling in the first direction vertically stacked secondary packs and thus stabilization of the palletized or palletable arrangement is achieved.

Advantageously, additional 1 to 5, in particular 1 to 4, in particular 1 to 3 support windings are provided between the head windings and the foot windings.

For the attachment of the stretch film windings, so the head windings, foot windings, coil windings and support windings, it proves to be advantageous if a the stretch film windings forming flat material web of stretch film material is vorgereckt before applying to the side by side and in the first direction superimposed secondary packages, in particular by at least 100%, in particular by at least 120% and further in particular by at least 140%, more particularly up to a maximum of 200%, in particular up to a maximum of 190%, further in particular by 150 - 180% vorgereckt.

The stretching or stretching by 100% means, based on the running meters of the material, that one meter of film (in the initial state) is extended by the stretching or stretching by 100%, ie to two meters.

A distinction here is a pre-stretching of a stretch film material of the stretch film windings of an application voltage, which only immediately upon application, d. H. Winding the flat web is generated. The stretching of a stretch film material is understood to mean an expansion preceding the immediate application, in particular between a supply roll and a take-off device. The final application voltage is established between this extraction device and the object to be wrapped. This two-stage build-up of tension in the stretch film material of the stretch film windings proves advantageous because it increases the stability of the wrapped arrangement to avoid over-stressing directly on the assembly, which otherwise poses a problem of secondary package slipping up to tipping over the assembly Consequence The relatively high two-stage stress build-up of pre-stretching and application tension then leads to a corresponding degree of relaxation of the stretch film material in the application state, ie after finalization of the stretch film windings, which is accompanied by a shrinking effect and thus a stabilization of the arrangement.

In a further development of the present inventive concept, it proves to be advantageous if the pre-stretched flat web of stretch film winding under an additional application tension (winding tension) is wound around the side by side and in the first direction stacked secondary packages and that the application voltage of an additional stretching of the already stretched stretch film to 15-40%, in particular by 20-40%, in particular by 20-35% of the anticipated length is provided.

A stretch film or a stretch film material is understood as meaning an elastically extensible flat material, ie a flat material which, when stretched, i. Elongation, has a resilience and can exercise restoring forces. As the stretch film material for both the flat material webs forming the first and second stretch film wrappings and the stretch film windings, various types such as cast films and / or blown films may be used.

Cast films are produced by distributing a liquefied granulate by means of a slot die on a water-cooled roll. The cast films here are stretch films, which can preferably be well stretched / stretched in the machine direction (MD), but preferably have little to no restoring forces perpendicular to the machine direction (CD).

The blown films are made by inflating the extruded film into a balloon and then packaging into a roll. A blown film is a stretch film, which preferably has restoring forces both in the machine direction (MD) and in the direction perpendicular thereto (CD).

The stretch film materials used for the stretch film wrappings and for the stretch film windings may preferably differ, in particular in the thickness of the stretch film material and / or in particular in the type of stretch film material used, ie blown film material or cast film material.

Preferably, a blown film is used for the flat material web forming the first and / or second stretch film wrapping, and a cast film is used for the flat material web forming the stretch film windings.

As stretch film materials for the stretch film wrappings, films with a thickness of 20-80 .mu.m, in particular 20-60 .mu.m, more particularly 30-50 .mu.m have proven successful.

As stretch film materials for the stretch film windings, films having a thickness of 15-50 .mu.m, in particular 15-40 .mu.m, more particularly 15-30 .mu.m, have proven successful. The thickness measurement can be done, for example, according to DIN 53370: 2006-11, method P.

Such films can be obtained, for example, from ITW Mima.

The palletized or palettable arrangement preferably has a height in the first direction of at least 1.50 m, in particular of at least 1.70 m, more particularly of at least 1.90 m, and more particularly of at most 2.50 m, more particularly of not more than 2.30 m, more particularly not more than 2.00 m.

The hygiene articles comprise in particular diapers, incontinence products, feminine hygiene products, panty liners or also absorbent bed liners or bed linens.

The hygiene products are equipped with an absorbent body. The absorbent body comprises body fluid absorbent absorbent materials, such as natural or synthetic fibers, especially cellulosic fibers, preferably in the form of pulp fluff and / or intra-crosslinked cellulosic fibers. Preferably, the absorbent materials further comprise superabsorbent materials (SAP), especially based on surface-crosslinked, partially neutralized polyacrylates. The absorbent body preferably has a fraction of fibers, in particular of cellulose fibers, of at least 10% by weight, more particularly of at least 30% by weight, more particularly of at least 50% by weight, more particularly of at least 60% by weight.

As a basis, for example, conventional pallets, made of wood or plastic materials, in different sizes in question. Preferably, a Euro pallet is used with an area of in particular 800 x 1200 mm and height 144 mm.

The invention further relates to a method for producing an arrangement according to the invention having the following features:

- providing a plurality of bag packages as primary packages with folded hygiene articles contained therein;
Arranging several bag packages into a cuboid shape;
Attaching two stretch film wrappings around the cuboid shape in two mutually 90 degrees rotated orientations such that the cuboid shape is completely enclosed by the respective stretch film wrapping in a respective resulting circumferential direction and compressed thereby;
Arranging a plurality of secondary packages on a base next to each other and in a first direction one above the other and applying a plurality of stretch film windings around the juxtaposed and stacked secondary packages, whereby the arrangement is obtained,
- The stretch film windings head windings that substantially completely overlap each other, foot windings that substantially completely overlap each other, helical windings, which lead helically from the head windings in the direction of the foot windings, and helical windings, which starting from the foot windings helically toward the Head windings lead, include, and in addition between the head windings and the foot windings support windings are provided in a plane substantially perpendicular to the first direction, which cover substantially completely in the respective plane.

Furthermore, it proves to be advantageous that the first attached to the cuboid form stretch film wrapping is attached to the cuboid shape such that the stretch film wrapping forming flat material web is parallel to the four longest sides of the cuboid shape.

Further, it proves to be advantageous that the first attached to the parallelepiped stretch film wrapping is attached to the cuboid shape such that the stretch film wrapping forming flat material web runs parallel to only two of the four longest sides of the cuboid shape.

Furthermore, it proves to be advantageous that the folded hygiene articles are arranged with their flat sides lying against each other and thus forming a stacking form in a respective bag pack and that the orientation of the stack shape within the bag packs forming a secondary pack is the same in each case and that the first attached to the cuboid stretch film wrapping is attached to the cuboid shape such that the stretch film wrapping forming flat material web runs on two opposite sides of the parallelepiped parallel to the flat sides of the sanitary articles.

Furthermore, it proves to be advantageous that the folded hygiene articles are arranged with their flat sides lying against each other and forming a stacking form in a respective bag pack and that the orientation of the stack shape within those bag packs which form a secondary pack is the same in each case and the first the square-shaped stretch film wrapping is attached to the parallelepiped shape so that a sheet of flat material forming the stretch film wrapping extends along the edges of the folded sanitary articles and thus is orthogonal to the flat sides of the folded sanitary articles.

Furthermore, it proves to be advantageous that at least one and preferably both stretch film wrappings are respectively formed by two flat webs of stretch film material fed endlessly on opposite sides of the cuboid shape and along the cuboid shape by separating two sections from the endlessly fed flat web webs by the flat material webs at two opposite ends of the cuboid shape against each other applied, separated and connected, in particular welded.

Furthermore, it proves to be advantageous that a flat material web of stretch film material forming the first stretch film wrapping during the application to the parallelepiped shape by at least 10%, in particular by at least 12%, and more particularly by at most 30%, in particular by at most 25%, in particular by at most 20%, in particular by not more than 18%, in particular by not more than 15% and in particular by 12-15%.

Furthermore, it proves to be advantageous that a flat stretch web of stretch film material forming the second stretch film wrapping is stretched, at least as strongly, preferably more strongly, during the application to the parallelepiped shape than the flat stretch web forming the first stretch film wrapping, in particular during the application to the parallelepiped shape by at least 12%. , in particular by at least 15%, in particular by at least 18%, in particular by at most 40%, in particular by at most 35%, in particular by not more than 30%, in particular by not more than 25% and more particularly by 18-25%.

Furthermore, it proves to be advantageous for a respective flat material web of stretch film material forming the first and / or second stretch film wrapping to have a width orthogonal to a longitudinal extent of the flat material web, which is at least 80%, in particular at least 90%, more particularly at least 100% of a respective dimension of the corresponds to enclosing cuboid sides, and more particularly 1 - 10%, in particular 2 - 5% is greater than the relevant dimension of the cuboid side to be wrapped, so that the cuboid shape is completely enveloped on all sides.

Furthermore, it proves to be advantageous that a volume reduction by attaching the first and second stretch film wrappings of the cuboid shape relative to the volume of the cuboid shape before attaching the Stretchfolienumhüllungen at least 10%, in particular at least 12%, in particular at least 15%, and at most 35%, in particular not more than 30%, in particular not more than 25% and in particular 15-25%.

Furthermore, it proves to be advantageous that the helical windings, starting from the head windings in the direction of the foot windings and the helical windings starting from the foot windings in the direction of the head windings, differ in the degree of overlap, in particular the helical windings starting from the foot windings in the direction of the head windings Covering degree than the helical windings starting from the head windings in the direction of the foot windings.

Further, it proves to be advantageous that the leading from the head windings in the direction of the foot windings coil windings a coverage of less than 40%, in particular less than 35%, in particular less than 30%, in particular more than 20% and more in particular from 23 to 27% to each other.

Furthermore, it proves to be advantageous that 1 to 5, in particular 1 to 4, in particular 1 to 3 support windings are provided.

Furthermore, it proves to be advantageous that a flat material web of stretch film material forming the stretch film windings before being applied to the secondary packages arranged one above the other and in the first direction by at least 100%, in particular by at least 120% and more particularly by at least 140%, more particularly up to maximum of 200%, in particular up to a maximum of 190%, further in particular by 150 - 180% vorgereckt.

Furthermore, it proves to be advantageous that the pre-stretched flat material web is wound under an additional application voltage to the juxtaposed and in the first direction stacked secondary packages and that the application voltage of an elongation of the already vorgereckten flat material web by 15- 40%, in particular by 20-40 %, in particular by 20-35% of the anticipated length is provided.

Further features, details and advantages of the invention will become apparent from the appended claims, the drawings and the following description of a preferred embodiment of the invention. It should also be noted that the features listed in the claims are also considered in any combination and detached from the other features of a claim as essential to the invention.

In the drawing shows:

1a-d is a perspective schematic view of individual hygiene articles, a bag package with stacked received hygiene articles as a primary pack, a secondary pack of four primary packs, an arrangement of juxtaposed and stacked secondary packs (before the application of stretch film windings)

FIG. 2 shows a schematic illustration of an exemplary process flow of the combination of units of, for example, four primary packs for forming a secondary pack;

Figure 3 shows perspective and schematic views of an arrangement according to the invention in the course of the attachment of stretch film windings by means of a schematically illustrated device;

Figure 4 is a perspective view of an inventive arrangement in the state after the attachment of head windings, screw windings (head to toe) and foot windings;

Figure 5 is a perspective view of an inventive arrangement with head windings, foot windings, helical windings (head to foot and foot to head) and support windings;

FIG. 6 a shows an exemplary overlapping situation with helical windings (head to foot);

FIG. 6b shows an exemplary overlapping situation with helical windings (foot to head);

Figure 7a, b illustrates two alternative orientations in attaching a first of two stretch film wraps.

First, FIG. 1 a shows a schematic illustration of an exemplary number of six hygiene articles 2 that are folded by way of example and typically singly or multiply and thus have a preferably substantially planar configuration with two opposite flat sides 3. The hygiene articles 2 can then be accommodated with their flat sides 3 adjacent to one another in a bag pack 4, typically made of a plastic film material (FIG. 1b). In this case, they preferably form a single stack shape with a stacking direction 5. Such a bag pack 4 with hygiene articles 2 is also referred to below as a primary pack 6. FIG. 1c shows a unit 8 of, for example, four bag or primary packages 4, 6, which are arranged in a cuboidal shape 10 and combined by an outer package, which is still to be explained, into a parallelepipedic secondary packing 12. FIG. 1d shows a multiplicity of secondary packs 12 arranged one above the other and in a first direction 14 (shown schematically without outer packaging), which for storage and transport purposes are to be combined to form a palletized or palletable arrangement 16, as shown in FIG. which will be explained in detail below.

The reference numeral 18 denotes a base, which may be, for example, a pallet, a tray-shaped or plate-shaped base or the like.

FIG. 2 shows, schematically and by way of example, the production of a parallelepipedic secondary pack 12 from, for example, four primary packs 6. The respective stacking direction 5 of the hygiene articles 2 in the primary packs 6 is shown by an arrow in FIG. it could in an alternative embodiment orthogonal to the orientation shown (shown in phantom), and be directed in all primary packages 6 a unit 8 preferably the same. To form a secondary package 12, the parallelepiped 10 is comprised of, for example, four primary packs 6 with a first stretch wrap 20 and a second 90 ° rotated stretch wrap 22, which also provides compression, i. Volume reduction of the original parallelepiped 10 is accompanied. In the exemplary and preferred illustrated case, both the first and the second stretch film wrapping 20 or 22 of two sheets of

flat material

24, 26 and 28, 30 formed from stretch film material. The reference numeral 32 designates a machine or feed direction for the respective cuboid mold 10 from primary packs 6 and for the flat material webs 24 to 30. In the course of feeding the parallelepiped molds 10 and the

flat material webs

24, 26, the

flat material webs

24, 26 are applied in advance in the machine direction 32 of the respective cuboid mold 10 against each other and separated and connected, this advantageously a Abschweißvorgang is used. A device suitable for this purpose is designated schematically by the reference numeral. In this way, a closed end 36 is formed by the two

flat material webs

24, 26. Against this closed end 36, the parallelepiped 10 is pressed in the machine direction 32 with respect to the feed speed of the

flat webs

24, 26 increased feed rate, whereby an application voltage in the first and second

flat material web

24, 26 is constructed. The

flat material webs

24, 26 are then also applied against each other in the area of the rear end of the respective cuboid 10 in the machine direction 32, separated and connected to each other, again preferably by a Abschweißvorgang, whereby a further closed end 40 in the

flat material webs

24, 26 is formed. As a result of the voltage generated in the

flat material webs

24, 26 during the introduction of the respective cuboid shape, a total compression of the parallelepiped mold 10 in the machine direction 32 is realized, preferably in the scope mentioned at the outset in the introduction to the description. The second stretch film wrap 22 is then applied from appropriately fed

flat webs

28, 30. For this purpose, the relative orientation between the parallelepiped shape 10 and the machine or feed direction of the

flat material webs

28, 30, again indicated by reference numeral 32, is changed by 90 °, which is expediently effected by a 90 ° rotation of the parallelepiped mold 10. The parallelepiped 10 is then guided in a corresponding manner between the

flat material webs

28, 30, which are applied in a corresponding manner in the machine direction 32 at the front or rear end of the cuboid against each other, separated and interconnected, with a further compression of the parallelepiped 10 in the machine direction 32 takes place. Finally, the cuboid secondary packing 12 of the parallelepiped mold 10 shown in FIG. 2 at the bottom right is obtained, the outer dimension of which is preferably reduced by the dimensions given in the introduction to the description with respect to the outer dimension of the parallelepiped mold 10 shown in FIG. It should also be pointed out that the flat material webs 24 to 30 preferably but not necessarily have a width orthogonal to the respective machine or feed direction 32, which is greater than the corresponding dimension of the parallelepiped side to be wrapped.

FIG. 7a illustrates that the stretch film wrapping 20 attached first to the cuboid mold 10 is attached to the cuboid mold 10 in such a way that the

flat material web

24, 26 forming the stretch film wrapping 20 runs parallel to the four longest sides 42 of the cuboid mold 10. FIG. 7b illustrates that the stretch film wrapping 20 attached first to the cuboid mold 10 is attached to the cuboid mold 10 in such a way that the

flat material web

24, 26 forming the stretch film wrapping 20 runs parallel to only two of the four longest sides 42 of the cuboid mold 10 and thus also parallel to the two shorter or smaller sides 44 of the parallelepiped 10 extends.

The secondary packs 12 thus obtained can preferably be arranged or stacked on a suitable base 18 next to each other and in the first direction 14, so that a once again preferably cuboidal overall arrangement results. This assembly is then fixed with a plurality of stretch film windings 48 for stabilization and fixation. FIG. 3 shows views in the course of applying stretch film windings 48, schematically showing a device 50 for feeding and unrolling a flat material web 52 made of stretch film material which can be used therefor; to the representation of a rocker for withdrawing the sheet 52 from a roll to perform a pre-stretching of the material was omitted. From Figure 3 it can be seen the attachment of head windings 54, foot windings 56 and screw windings 58, which lead starting from the head windings 54 helically in the direction of the foot windings 56. Corresponding helical windings 60, which, however, lead in the opposite direction, starting from the foot windings 56 in the direction of the head windings 54, are not shown in FIG. 3 for the sake of clarity, but can be seen from FIG. Furthermore, two horizontally extended

support windings

62, 64 can be seen from FIG. 3, which are provided at a distance from one another and at a different height between the head windings 54 and the foot windings 56 with respect to the first direction 14.

It may prove to be advantageous that all windings are formed by a single continuously wound flat material web 52, as already indicated at the outset. But this is not absolutely necessary. The different winding types can also be applied independently of one another and discontinuously, in particular also using flat material webs of various types, in particular of different feed rollers and / or feed devices. FIG. 4 shows an intermediate state during the application of the stretch film windings 48 with head windings 54, screw windings 58 and foot windings 56, and FIG. 5 shows the completed palletized or palettable arrangement 16 with all the stretch film windings 48.

The head windings and the foot windings preferably extend essentially with a circumferential direction or circumferential extent 66, which runs approximately in a plane perpendicular to the first direction 14, that is, when the palletized arrangement 16 is oriented vertically approximately in a horizontal plane. The same is preferably true also for the

support windings

62 and 64. The head windings 54, foot windings 56 and

support windings

62, 64 advantageously comprise multiple superimposed winding layers, whereby a stability required for storage and transport purposes is achieved. The

helical windings

58 and 60, on the other hand, are helical with respect to the first direction 14, with a

respective pitch

58, 60 preferably maintaining about a constant pitch. The pitch is advantageously such that partially overlap successively mounted coil windings, wherein the degree of coverage is advantageously carried out as specified in the introduction to the description. As mentioned therein, the degree of overlap in the helical coils 60 extending in the foot-to-head direction is greater than in the helical coils 58 extending in the head-to-toe direction, that is, opposite to the first direction 14. This is indicated by the representation of FIGS. 6a and 6b.

It should be noted that the arrangement 16 of secondary packages 12 in the manner described above and fixing stretch film windings 48 are preferably formed by a pre-stretched flat material web. That is, the sheet of flat film 52 of stretch film material forming the respective stretch film windings 48 is pre-stretched prior to application to the stacked array of secondary packages 12, i. H. has been pre-stretched, which can typically be realized by a rocker pulling away the flat web from a feed roll. However, it would also be conceivable that the pre-stretching of the flat material web is carried out at an earlier point in time. In the case of the direct attachment of the pre-stretched flat material web, an additional application tension or winding tensile force is produced in the flat material web 52, as likewise described in the introduction to the invention, in order to generate an even higher tensile force in the direction of extension of the stretch film windings 48.

The palletized or palettable arrangement according to the invention, which is shown in the finished state by way of example in FIG. 5, is distinguished by its high dimensional stability and stability, without the need for extensive cardboard boxes for stabilization.

Claims

Palletized or palletizable arrangement for storing and transporting bag packages (4) containing a plurality of sanitary articles (2) as primary packs (6), the bag packs (4) not being accommodated in cardboard outer packagings, having the following features:

the assembly comprises several units (8) of a plurality of bag packs (4) combined into separate secondary packs (12), these secondary packs (12) lying next to each other on a base (18) and perpendicularly in a first direction (14) ( 18) are arranged one above the other;

a respective secondary pack (12) is formed by arranging a respective unit (8) of a plurality of bag packs (4) into a parallelepiped shape (10) and this parallelepiped shape (10) by two separate stretch film wrappings (90) rotated relative to each other (FIG. 20, 22) is completely enclosed in a respective resulting circumferential direction of the stretch film wrapping (20, 22) and is thereby compressed;

- the secondary packages (12) juxtaposed on the base (18) side by side and in the first direction (14) are held together by a plurality of stretch film windings (48) to form the assembly;

the stretch film windings (48) comprise head windings (54) which substantially completely overlap each other, foot windings (56) which substantially completely overlap one another, and helical windings (58) which extend helically from the head windings (54) in the direction of Foot windings (54) lead, and helical windings (60), which lead from the foot windings (56) helically toward the head windings (54), wherein additionally between the head windings (54) and the foot windings (56) supporting windings (62, 64 ) are provided in a plane substantially perpendicular to the first direction (14), which substantially completely overlap in the respective plane.
Arrangement according to claim 1, characterized in that the stretch film wrapping (20) attached first to the parallelepiped shape (10) is attached to the parallelepiped shape (10) such that a flat material web (24, 26) forming the stretch film wrapping (20) is parallel to the stretch wrapping four longest sides (42) of the parallelepiped (10) extends.
Arrangement according to claim 1, characterized in that the stretch film wrapping (20) attached first to the parallelepiped shape (10) is attached to the parallelepiped shape (10) such that a flat material web (24, 26) forming the stretch film wrapping (20) is parallel to only two of the four longest sides (42) of the parallelepiped (10) runs.
Arrangement according to one or more of the preceding claims, characterized in that the folded hygiene articles (2) with their flat sides (3) lying against each other and forming a stacking form in a respective bag package (4) are arranged and that the orientation of the stack shape within those bag packages (4) which form a secondary packing (12) are the same in each case and in that the stretch film wrapping (20) attached first to the cube form (10) is attached to the cube form (10) in such a way that a flat material web (24, 24) forming the stretch film wrapping 26) extends on two opposite sides of the parallelepiped shape (10) parallel to the flat sides (3) of the hygiene articles (2).
Arrangement according to one or more of the preceding claims 1 to 3, characterized in that the folded hygiene articles (2) with their flat sides (3) lying against each other and thus forming a stacking form in a respective bag pack (4) are arranged and that the orientation of the stack shape within each of the bag packs (4) which form a secondary pack (12) are the same and the first stretch film wrapping (20) attached to the cuboid mold (10) is attached to the parallelepiped shape such that a flat material web forming the stretch film wrapping (20) (FIG. 24, 26) extends along the edges of the folded sanitary articles (2) and thus orthogonal to the flat sides (3) of the folded sanitary articles (2).
Arrangement according to one or more of the preceding claims, characterized in that at least one and preferably both stretch film wrappings (20, 22) each of two on opposite sides of the cuboidal shape (10) and along the cuboid shape endlessly supplied flat material webs (24, 26) made of stretch film material is formed or are that of the endlessly supplied flat material webs (24, 26) two sections are separated by the flat material webs (24, 26) applied to two opposite ends of the cuboid against each other, separated and connected, in particular welded.
Arrangement according to one or more of the preceding claims, characterized in that a flat material web (24, 26) of stretch film material forming the first stretch film wrapping (20) during application to the cuboid mold (10) by at least 10%, in particular by at least 12%, and in particular by not more than 30%, in particular by more than 25%, in particular by not more than 20%, in particular by not more than 18%, in particular by not more than 15% and in particular by 12-15%.
Arrangement according to one or more of the preceding claims, characterized in that a flat material web (28, 30) of stretch film material forming the second stretch film wrapping (22) is stretched at least as strongly, preferably more strongly, than the film during application to the cuboid mold (10) first stretch film wrapping (20) forming flat material web (24, 26), in particular during the application to the cuboid shape by at least 12%, in particular by at least 15%, in particular by at least 18%, in particular by at most 40%, in particular by at most 35%, in particular by a maximum of 30%, in particular by not more than 25%, and in particular by 18-25%.
Arrangement according to one or more of the preceding claims, characterized in that a respective flat material web (24, 26, 28, 30) of stretch film material forming the first and / or second stretch film wrapping (20, 22) has a width orthogonal to a longitudinal extension of the flat material web (24 , 26, 28, 30), which corresponds to at least 80%, in particular at least 90%, more particularly at least 100% of a respective dimension of the cuboid sides to be enveloped, and more particularly 1 - 10%, in particular 2 - 5% greater than that relevant dimension of the cuboid side to be enveloped, so that the parallelepiped shape (10) is completely enveloped on all sides.
Arrangement according to one or more of the preceding claims, characterized in that a volume reduction by attaching the first and second stretch film wrappings (20, 22) of the cuboid mold (10) relative to the volume of the cuboid mold (10) before applying the stretch film wrappings (20, 22 ) is at least 10%, in particular at least 12%, in particular at least 15%, and at most 35%, in particular at most 30%, in particular at most 25% and in particular 15-25%.
Arrangement according to one or more of the preceding claims, characterized in that the helical coils (58), starting from the head windings (54) in the direction of the foot windings (56) and the helical windings (60) starting from the foot windings (56) in the direction of the Head windings (54) differ in the degree of coverage, in particular the coil windings (60) starting from the foot windings (56) towards the head windings (54) have a greater degree of coverage than the coil windings (58) starting from the head windings (54) in the direction the footwraps (56).
Arrangement according to one or more of the preceding claims, characterized in that the screw windings (58) leading from the head windings (54) in the direction of the foot windings (56) have a coverage of less than 40%, in particular less than 35%, in particular of less than 30%, in particular more than 20% and more particularly from 23 to 27% to each other.
Arrangement according to one or more of the preceding claims, characterized in that the screw windings (60) leading from the foot windings (56) in the direction of the head windings (54) have a coverage of more than 40%, in particular more than 50%, in particular of more than 60%, in particular more than 65%, in particular less than 80% and more particularly of 65-75% to each other.
Arrangement according to one or more of the preceding claims, characterized in that 1 to 5, in particular 1 to 4, in particular 1 to 3 supporting windings (62, 64) are provided.
Arrangement according to one or more of the preceding claims, characterized in that a flat material web (52) of stretch film material which forms the stretch film windings (48) before being applied to the secondary packages (12) arranged one above the other and in the first direction (14) by at least 100%. , in particular by at least 120% and more particularly by at least 140%, more particularly by at most 200%, in particular by at most 190%, further in particular by 150 - 180% vorgereckt is.
Arrangement according to claim 15, characterized in that the pre-stretched flat material web (52) is wound under an additional application voltage around the juxtaposed and in the first direction (14) superposed secondary packages (12) and that the application voltage of an elongation of the already pre-stretched flat material web ( 52) is provided by 15-40%, in particular by 20-40%, in particular by 20-35% of the pre-stretched length.
Method for producing an arrangement according to one or more of the preceding claims, with the following features

- providing a plurality of bag packages (4) as primary packages (6) with folded hygiene articles (2) contained therein;

- arranging a plurality of bag packages (4) into a cuboid shape (10);

- attaching two stretch film wrappings (20, 22) around the cuboid mold (10) in two mutually 90 degrees rotated orientations such that the cuboid mold (10) is completely enclosed by the respective stretch film wrapping (20, 22) in a respective resulting circumferential direction and thereby compressed;

Arranging a plurality of secondary packages (12) on a base (18) side by side and in a first direction (14) one above the other and applying a plurality of stretch film windings (48) around the juxtaposed and stacked secondary packages (12), thereby obtaining the assembly,

- wherein the stretch film windings (48) head windings (54) substantially completely overlap each other, foot windings (56) which substantially completely cover each other, helical windings (58), which starting from the head windings (54) helically toward the foot windings (54), and helical windings (60) leading helically from the foot windings (56) toward the head windings (54), and additionally supporting windings (62) between the head windings (54) and the foot windings (56) , 64) are provided in a plane substantially perpendicular to the first direction (14), which substantially completely overlap in the respective plane.
A method according to claim 17, characterized in that the stretch film wrapping (20) first attached to the cuboid mold (10) is attached to the cuboid mold (10) so that a sheet of flat material (24, 26) forming the stretch film wrapping (20) is parallel to the stretched film wrapping (20) four longest sides of the cuboid (10) runs.
A method according to claim 17, characterized in that the stretch film wrapping (20) attached first to the cuboid mold (10) is attached to the cuboid mold (10) such that a flat material web (24, 26) forming the stretch film wrapping (20) is parallel to only two of the four longest sides of the cuboid (10) runs.
Method according to one or more of the preceding claims 17-19, characterized in that the folded hygiene articles (2) with their flat sides (3) lying against each other and thus forming a stack form in a respective bag package (4) are arranged and that the orientation of the stack shape (4) inside the bag packs (4) forming a secondary pack (12) are the same, respectively, and that the stretch film wrapping (20) first attached to the cuboid mold (10) is attached to the cuboid mold (10) such that one of the two Stretch film wrapping (20) forming flat material web (24, 26) on two opposite sides of the cuboid shape (10) parallel to the flat sides (3) of the sanitary article (2).
Method according to one or more of the preceding claims 17-19, characterized in that folded hygiene articles (2) with their flat sides (3) lying against each other and thus forming a stacking form in a respective bag package (4) are arranged and that the orientation of the stack shape within each of the bag packs (4) which form a secondary pack (12) is the same in each case and the stretch film wrapping (20) attached first to the cuboid mold (10) is attached to the cuboid mold in such a way that a flat material web (24) forming the stretch film wrapping (20) is formed , 26) runs along the edges of the folded hygiene articles (2) and thus runs orthogonal to the flat sides (3) of the folded hygiene articles (2).
Method according to one or more of the preceding claims 17-21, characterized in that at least one and preferably both stretch film wrappings (20, 22) each of two on opposite sides of the cuboidal shape (10) and along the cuboid shape endlessly supplied flat material webs (24, 26, 28, 30) of stretch film material is formed by separating two sections from the endlessly supplied flat material webs (24, 26, 28, 30) by forming the flat material webs (24, 26, 28, 30) at two opposite ends of the webs Cuboid against each other created, separated and connected, in particular welded.
Method according to one or more of the preceding claims 17-22, characterized in that a flat material web (24, 26) of stretch film material forming the first stretch film wrapping (20) during application to the cuboid shape (10) by at least 10%, in particular by at least 12th %, and in particular by not more than 30%, in particular by more than 25%, in particular by not more than 20%, in particular by not more than 18%, in particular by not more than 15% and in particular by 12-15%.
Method according to one or more of the preceding claims 17-23, characterized in that a flat material web of stretch film material (28, 30) forming the second stretch film wrapping (22) is stretched at least as strongly, preferably more strongly, during application to the cuboid mold (10) as the flat material web (24, 26) forming the first stretch film wrapping (20), in particular during application to the cuboid mold (10) by at least 12%, in particular by at least 15%, in particular by at least 18%, in particular by at most 40%, in particular by a maximum of 35%, in particular by not more than 30%, in particular by not more than 25%, and more particularly by 18-25%.
Method according to one or more of the preceding claims 17-24, characterized in that a respective flat material web (24, 26, 28, 30) of stretch film material forming the first and / or second stretch film wrapping (20, 22) has a width orthogonal to a longitudinal extent of Flat material web (24, 26, 28, 30), which corresponds to at least 80%, in particular at least 90%, more particularly at least 100% of a respective dimension of the cuboid sides to be wrapped, and further in particular 1 - 10%, in particular 2 - 5% larger is as the relevant dimension of the cuboid side to be wrapped, so that the cuboid shape (10) is completely enveloped on all sides.
Method according to one or more of the preceding claims 17-25, characterized in that a volume reduction by attaching the first and second stretch film wrappings (20, 22) of the cuboid mold (10) relative to the volume of the cuboid mold (10) before applying the stretch film wrappings ( 20, 22) is at least 10%, in particular at least 12%, in particular at least 15%, and at most 35%, in particular at most 30%, in particular at most 25% and in particular 15-25%.
Method according to one or more of the preceding claims 17-26, characterized in that the helical windings (58) starting from the head windings (54) in the direction of the foot windings (56) and the helical windings (60) starting from the foot windings (56) in Direction of the head windings (54) differ in the degree of coverage, in particular the helical windings (60) starting from the foot windings (56) towards the head windings (54) have a greater degree of coverage than the helical windings (58) starting from the head windings (54) towards the footwraps (56).
Method according to one or more of the preceding claims 17-27, characterized in that the screw windings (58) leading from the head windings (54) in the direction of the foot windings (56) have a coverage of less than 40%, in particular less than 35 %, in particular of less than 30%, in particular of more than 20% and more particularly of 23 - have 27% to each other.
Method according to one or more of the preceding Claims 17 to 28, characterized in that the helical windings (60) leading from the foot windings (56) in the direction of the head windings (54) have a coverage of more than 40%, in particular more than 50% %, in particular of more than 60%, in particular of more than 65%, in particular of less than 80% and more particularly of 65-75% to each other.
Method according to one or more of the preceding claims 17-29, characterized in that 1 to 5, in particular 1 to 4, in particular 1 to 3 supporting windings (62, 64) are provided.
Method according to one or more of the preceding claims 17-30, characterized in that a flat material web (52) of stretch film material which forms the stretch film windings (48) before being applied to the secondary packings (12) arranged one above the other and in the first direction (14) 100%, in particular by at least 120% and more particularly by at least 140%, more particularly up to a maximum of 200%, in particular up to a maximum of 190%, further in particular by 150 - 180% vorgereckt.
A method according to claim 31, characterized in that the pre-stretched flat material web (52) under an additional application voltage to the side by side and in the first direction (14) superimposed secondary packages (12) is wound and that the application voltage of an elongation of the already pre-stretched flat material web ( 52) is provided by 15-40%, in particular by 20-40%, in particular by 20-35% of the anticipated length.