EP4061639A1

EP4061639A1 - Active ingredient sachet, method for producing an active ingredient sachet, and use of an active ingredient sachet

Info

Publication number: EP4061639A1
Application number: EP20810895.1A
Authority: EP
Inventors: Ingomar Henning; Walter Heberlein
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2019-11-21
Filing date: 2020-11-18
Publication date: 2022-09-28
Also published as: WO2021099341A1; DE102019131454A1

Abstract

The invention relates to a method for producing an active ingredient sachet (1) with at least one chamber (5, 6, 7, 8, 9, 10), wherein at least one active ingredient preparation (12, 13, 14, 15) can be received in each chamber (5, 6, 7, 8, 9, 10). The method has the following steps: - providing a first material layer (2) made of a first material; - applying at least one active ingredient preparation (12, 13, 14, 15) onto the first material layer (2); - applying a second material layer (3) made of a second material onto the first material layer (2) with the interposition of the at least one active ingredient preparation (12, 13, 14, 15) between the first and second material layer (2, 3); - partly connecting the first material layer (2) and the second material layer (3) together such that an active ingredient sachet (1) with at least one chamber (5, 6, 7, 8, 9, 10) is formed, wherein at least one active ingredient preparation (12, 13, 14, 15) can be received in each chamber (5, 6, 7, 8, 9, 10); and - punching the active ingredient sachet (1) out of the first and second material layer (2, 3). The invention additionally relates to an active ingredient sachet (1) produced in such a method and to the use of such an active ingredient sachet (1).

Description

"Active ingredient sachet, method for producing an active ingredient sachet and use of an active ingredient sachet"

description

The present invention relates to a method for producing an active substance sachet with at least one chamber, wherein at least one active substance preparation can be accommodated in each chamber. The invention also relates to an active ingredient sachet produced in such a method and to the use of such an active ingredient sachet.

Products made from several layers of a nonwoven fabric are known from filter technology. For certain applications, these products are bag-like, examples of which are vacuum cleaner bags or pocket filters. These are produced by connecting two or more layers of nonwoven fabric to one another over the entire surface or only in an edge area. In addition, closed bags made of a nonwoven material are known in which an active ingredient preparation is contained, for example nonwoven bags which are filled with granules for dehumidifying or also tea bags.

It is an object of the present invention to provide an improved, cost-effective method for producing such active ingredient sachets. It is a further object of the invention to develop such active ingredient sachets further, in particular in such a way that different, in particular incompatible active ingredient preparations can be accommodated in them. Another object of the invention is to provide a use of such an active ingredient sachet.

These objects are achieved by a method for producing an active substance sachet with the features of patent claim 1, by an active substance sachet with the features of patent claim 8 and by using an active substance sachet according to claims 13 and 14.

Specific refinements and developments of the invention are the subject matter of the dependent claims.

According to claim 1, the invention comprises a method for producing an active ingredient sachet with at least one chamber, wherein at least one active ingredient preparation can be accommodated in each chamber, comprising the following steps:

Providing a first material layer made of a first material;

Applying at least one active ingredient preparation to the first material layer; Applying a second material layer made of a second material to the first material layer with the at least one active ingredient preparation interposed between the first and the second material layer; connecting the first and second material layers to one another in sections, in such a way that an active ingredient sachet is formed with at least one chamber, at least one active ingredient preparation being able to be accommodated in each chamber;

Punching out the active ingredient sachet from the first and second material layers.

In other words, an active ingredient sachet comprising at least one chamber is produced according to the invention by initially providing a first material layer of a first material, for example a nonwoven or a nonwoven-like material, along a continuous production line, to which at least one active ingredient preparation is applied in a subsequent process step . After the at least one active ingredient preparation has been applied to the first material layer, a second material layer made of a second material is applied to the first material layer, the previously applied at least one active ingredient preparation coming to lie between the first and the second material layer. The second material of the second material layer can be identical to the first material of the first material layer, in particular the first and the second material layer can consist of a nonwoven or a nonwoven-like material. In principle, the first material of the first material layer and the second material of the second material layer can also differ from one another.

In a subsequent method step, the first material layer and the second material layer are connected to one another in sections, in such a way that an active ingredient sachet is formed with at least one chamber, with at least one active ingredient preparation being able to be accommodated in each chamber. In principle, at least one active ingredient preparation can accordingly be accommodated in all of the designed chambers, but at least one active ingredient preparation can also be accommodated in only one or in individual chambers. To form the chambers, connecting seams are formed between the first and the second material layer, through which the active ingredient preparation cannot pass. A hundred percent tightness of the connection seams is aimed for. However, depending on the material used for the first and second material layer, this cannot always be achieved. In this case, the connecting seams should be essentially tight, in such a way that the active ingredient preparation can pass through the connecting seams at least only with great difficulty and only sporadically. The connection of the first and second material layers in sections can be done, for example, by welding. In this case, weld seams are formed through which the first material layer and the second material layer are connected to one another in sections and at the same time at least one closed chamber is formed, with at least one active ingredient preparation being able to be accommodated in each chamber. For this purpose, at least one circumferential, the Active ingredient sachet delimiting the edge and at the same time forming a chamber formed weld seam.

In a final process step, the active ingredient sachet is punched out of the first and second material layers. The punching out takes place along a line immediately outside the peripheral connecting line on the edge, for example the peripheral weld seam. The finished active ingredient sachet comprises at least one chamber, it being possible for at least one active ingredient preparation to be accommodated in each chamber.

It is an advantage of the invention that a corresponding active ingredient sachet can be produced inexpensively and with little material expenditure in a continuous process. When using a uniform material for the first and the second material layer, material composites that are difficult to recycle can also be avoided.

The application of active ingredient preparation to the first material layer can in principle be carried out either discretely or continuously. In the case of a discrete application of an active ingredient preparation, constant or variable dose units of the active ingredient preparation are applied to the first material layer in such a way that each dose unit of an active ingredient preparation applied to the first material layer is surrounded by a certain area in which there are no or only very small amounts are in active ingredient preparation. The space between two dose units, which is essentially free of active ingredient preparation, can measure a few millimeters to a few centimeters in its narrowest dimension. In this way, it is possible that in the process step of connecting in sections, for example welding, the first and the second material layer weld seams are formed in the area of the spaces between the individual dose units, creating chambers in each of which a dose unit of an active ingredient preparation is received. Alternatively, an active ingredient preparation can also be applied to the first material layer as a continuous distribution over a larger area. This area continuously provided with active ingredient preparation is subdivided into separate chambers in the process step of joining, for example welding the first and second material layers, by connecting seams, for example weld seams, each of which contains an essentially constant or variable proportion of active ingredient preparation. In this case, a small proportion of the active ingredient preparation can also lie in the area of the weld seams themselves and be embedded and fixed there by the welding.

In a preferred embodiment variant of the method according to the invention, the active ingredient sachet is designed with at least two chambers separated from one another, it being possible for at least one active ingredient preparation to be accommodated in each chamber. The same active ingredient preparation can be accommodated in each of the individual chambers, but the composition of the active ingredient preparations can preferably be different in at least two chambers differ from each other. In principle, several different active ingredient preparations can also be accommodated in one chamber, provided that the respective active ingredient preparations are compatible with one another, ie provided that there are no undesired interactions between the individual active ingredient preparations.

To produce an active ingredient sachet with several separate chambers, each of which can contain at least one active ingredient preparation, in addition to a circumferential connecting seam delimiting the active ingredient sachet between the first and second material layer, for example a weld seam, one or more further connecting seams, for example weld seams, are also formed, through which the inner volume of the active ingredient sachet is divided into individual separate chambers. For example, in the case of discretely applied active ingredient preparations, these further connecting seams can be formed in the spaces between the individual applied dose units. Each dosage unit of an active ingredient preparation is enclosed in its own chamber in this way. In the case of continuously applied active ingredient preparation, the connecting seams can also run through the area provided with active ingredient preparation, so that a certain proportion of active ingredient preparation may be set in the area of the connecting seams.

Another advantage of an active ingredient sachet with several chambers produced in this way is that certain portions of the active ingredient preparations are each enclosed in a separate chamber, so that the active ingredient preparations cannot be distributed arbitrarily within the active ingredient sachet and in particular no accumulation of active ingredient preparations in a single area of the active ingredient sachet can occur. Equipping the active ingredient sachet with separate chambers leads to a defined positioning of the active ingredient preparations and thus to a more extensive design of the entire active ingredient sachet.

For the formation of an active ingredient sachet with several separate chambers, an active ingredient preparation with the same composition can be applied discretely or continuously, after the formation of the individual chambers in the process step of connecting the first and second material layers in sections, portions of this active ingredient preparation are in different chambers separated from one another come. However, two or more different active ingredient preparations can also be applied discretely or continuously to the first material layer, which differ in their composition and which come to lie in different chambers after the formation of the individual chambers. When a uniform active ingredient preparation is provided which is distributed over two or more chambers, the advantage of the invention lies primarily in the more uniform distribution of the active ingredient preparation in the active ingredient sachet due to the formation of separate chambers. In the case of several different active ingredient preparations, a further advantage of the invention is that such active ingredient preparations in particular are in one Active ingredient sachet can be combined, which are fundamentally incompatible with one another. Due to the arrangement in separate, separate chambers, otherwise incompatible active ingredient preparations can also be kept together in one active ingredient sachet.

Active ingredient preparations suitable for the purposes of the invention can include, for example, fragrances, substances for repelling insects, substances to make ironing easier, detergent components, color inhibitors, moisture absorbers and other active ingredients and combinations of these active ingredients.

The active ingredient preparations can, for example, be powdery, granular or solid.

An embodiment of the method according to the invention provides that after the step of connecting the first and second material layers and before the step of punching out, at least one section of the active ingredient sachet is printed. Printing can take place both in the area of the connecting seams and in the area of the chamber walls. In particular, different sections of the active ingredient sachet can be printed in different ways, i.e. for example in different printing processes and / or in different colors. In this way, individual connecting seams and / or individual chambers can be highlighted optically, which creates improved product aesthetics and gives the product a certain technical appearance. A suitable printing method is, for example, color printing, in particular pad printing, laser marking, inkjet printing and / or flexographic printing.

As an alternative or in addition to printing at least one section of the active ingredient sachet, a thermochromic finish of at least one section of the first and / or the second material layer, in particular in the area of a connecting seam, can also be provided. This can cause a thermally induced color change in a correspondingly equipped section. Such a thermochromic finish can be introduced into the respective areas, for example, in the process step of connecting the first material layer and the second material layer to one another in sections, for example by welding. In particular, the use of the active ingredient sachet can be signaled by a complete color change of an area equipped in this way.

According to a further proposal of the invention, after the step of applying a second material layer and before the step of connecting in sections, a hot stamping foil, which comprises a carrier foil and a transfer foil, can be applied to the second material layer. In the subsequent joining step, for example welding, the transfer film of the hot stamping film is detached from the carrier film and transferred to the second material layer. In this case, a design and refinement of at least one section of the surface of the active ingredient sachet is brought about by applying the transfer film to the second material layer. For example, with the help of metallized foils, visual and / or haptic effects, in particular gloss effects, can be achieved which give the product a certain value. Alternatively, the surface can also be designed with the help of a cold stamping foil.

A further embodiment of the method according to the invention provides that, before the step of applying at least one active ingredient preparation, the first material layer is fed to a deep-drawing device in which at least one cavity is initially preformed in the first material layer by deep-drawing in order to form the at least one chamber, with in An active ingredient preparation can be introduced into each deep-drawn cavity. In other words, at least one cavity is first pre-formed in the first material layer, into each of which an active ingredient preparation can then be poured. The same active ingredient preparation or different active ingredient preparations can be filled into several cavities.

With such a design of the method, in particular the application of discrete dose units is facilitated, since a natural delimitation between the individual dose units is already given by the receiving cavities. After the individual cavities have been filled, the second material layer is applied to the first material layer, the latter only resting on the first material layer in the area of the edges delimiting the cavities.

In the area of these edges, the first and second material layers are subsequently connected to one another, for example welded to one another, so that closed chambers separated from one another are formed. Finally, the sachet of active ingredients is punched out of the first and second layer of material.

In a further development of this embodiment variant, the second material layer can also be fed to a deep-drawing device before being applied to the first material layer, in which at least one cavity in the second material layer is pre-formed by deep-drawing, with the second material layer being applied to the first material layer with an intermediate layer in the subsequent step of the at least one active ingredient preparation in each case a cavity formed in the second material layer comes to rest with its opening on an opening of a cavity formed in the first material layer. The cavities formed in the first material layer and the cavities formed in the second material layer can be of identical size and shape.

The method according to the invention is characterized in all of its variants in that, as a continuous method in an automatic production process, it enables the cost-efficient production of a dimensionally stable active ingredient sachet, in particular with several chambers separated from one another.

According to claim 8, the invention also relates to an active ingredient sachet with at least one chamber, wherein at least one active ingredient preparation can be accommodated in each chamber, which is produced by a method according to one of claims 1 to 7. According to one embodiment, the active ingredient sachet comprises at least two separate ones Chambers. The active ingredient preparations can differ from one another in their composition in at least two chambers. In particular, two active ingredient preparations that are otherwise incompatible with one another can also be involved.

The active ingredient sachets can be round, elliptical or polygonal in their circumferential contour. An outer connecting seam, for example a weld seam, runs essentially along the circumferential contour, through further connecting seams, for example weld seams, the inner volume of the active ingredient can be divided into individual, separate chambers, with at least one active ingredient preparation being accommodated in each chamber. The connecting seams can be designed in straight lines or as curved lines.

In the case of a wrapper with only one chamber, joining points can nevertheless be provided within the area delimited by the outer connecting seam, at which the first and second material layers are additionally connected to one another at certain points, in such a way that although no completely separate chambers are formed, but a free one Movement of the material preparation picked up is made more difficult and in this way at least essentially a uniform distribution of the active ingredient preparation within the active ingredient sachet can be achieved. In principle, joining points can also be provided in an active ingredient sachet with a plurality of chambers in order to further limit the movement of the active ingredient preparation within all or individual chambers. Such joining points can be formed, for example, in a welding station by spot-welding the first and second material layers to one another.

Active ingredient sachets according to the invention can be used in a variety of ways. In this way, sachets containing a detergent as an active ingredient preparation can be added to the laundry in the washing machine. In this case, the material of the first and / or second material layer must be such that washing water can penetrate into the chambers of the active ingredient sachet and exit the chambers again together with dissolved washing agent. For use in a washing machine, the wrapper can also consist of a water-soluble material, for example a nonwoven based on polyvinyl alcohol or the like, which dissolves during the washing process.

In an alternative embodiment, active ingredient sachets can contain color inhibitors which prevent the transfer of washed-out dyes to other textiles during the washing process. It is also conceivable that one or more chambers in an active ingredient sachet contain a detergent, while at the same time one or more other chambers contain dye inhibitors. Different active ingredient preparations, for example a detergent and a dye inhibitor, can also be accommodated in a common chamber, provided that the respective active ingredient preparations are compatible with one another, ie provided that there are no undesired interactions between the respective active ingredient preparations.

For certain applications, according to an embodiment of the invention, the first material of the first material layer and / or the second material of the second material layer can be permeable to water vapor. A suitable material that is permeable to water vapor is, for example, a nonwoven fabric. Such active ingredient sachets are particularly suitable for use in a steam generator, for example in a steam ironing station or also in a simple steam brush. The active ingredient preparations received in the chambers can in this case include, for example, fragrances and / or substances to make ironing easier. When the active ingredient sachet is penetrated by water vapor, these are discharged from the chambers together with the latter and can thus develop their effect.

The invention is explained in more detail below using exemplary embodiments and with reference to the accompanying drawings. Show it:

Figure 1: An embodiment of an active ingredient sachet according to the invention in a schematic plan view;

FIG. 2: the active ingredient sachet from FIG. 1 in section;

FIG. 3: a further exemplary embodiment of an active ingredient sachet according to the invention in a schematic top view;

FIG. 4: an arrangement for carrying out a variant of the method according to the invention;

FIG. 5: a further arrangement for carrying out a further variant of the method according to the invention;

FIG. 6: a further arrangement for carrying out a further variant of the method according to the invention;

FIG. 7: a further arrangement for carrying out a further variant of the method according to the invention;

FIG. 8 shows a further arrangement for carrying out a further variant of the method according to the invention. FIG. 1 shows an active substance sachet designated as a whole by 1 in a schematic plan view. FIG. 2 shows the active ingredient sachet 1 in a sectional illustration, the section being made along the line AA from FIG. The active ingredient sachet 1 has a rectangular circumferential contour and is formed from a first material layer 2, not visible in the illustration in FIG. 1, and a second material layer 3 superimposed thereon. The two material layers 2, 3 are connected to one another in sections by a weld seam 4a running around the edge and two weld seams 4b, 4c running parallel to one another. Between the weld seams 4a, 4b and 4c, three separate, closed chambers 5, 6, 7 are formed between the material layers 2, 3, in each of which active ingredient preparations (not shown here) are accommodated. The three active ingredient preparations differ in their composition, ie a different active ingredient preparation is accommodated in chamber 5 than in chambers 6 and 7 and the active ingredient preparations accommodated in chambers 6 and 7 also differ from one another in their composition. The active ingredient preparations include, inter alia, fragrances and substances to facilitate ironing. The material of both the first material layer 2 and the second material layer 3 is a nonwoven and is therefore permeable to water vapor. The active ingredient sachet 1 is therefore particularly suitable for use in a steam generator, for example in a steam brush. There, the active ingredient sachet 1 is placed at a point provided for it and permeated by water vapor when the steam generator is in operation. The active ingredients contained in the active ingredient preparations are discharged from the chambers 5, 6, 7 of the active ingredient sachet 1 together with the water vapor and can thus develop their effect.

FIG. 3 shows a further exemplary embodiment of an active substance sachet 1 in a schematic plan view, which differs from the active substance sachet 1 from FIGS. 1 and 2 in particular in its external shape and in the number of chambers formed. The active ingredient sachet 1 shown in FIG. 3 has an elliptical circumferential contour. In addition to a circumferential weld seam 4a, the active ingredient sachet 1 comprises further weld seams 4d and 4e, by means of which the first material layer 2 and the second material layer 3 are connected to one another in sections. The weld seams 4a, 4d and 4e are designed here in curved lines. Between the welds 4a, 4d and 4e, a total of six separate, closed chambers 5, 6, 7, 8, 9, 10 are formed between the first material layer 2 and the second material layer 3, each of which contains different active ingredient preparations. In the area of the weld seams 4a, 4d and 4e, the second material layer 3 is also provided with a thermochromic finish, ie when heat is supplied, a thermally induced color change occurs in the corresponding areas. In this way, for example, that the active substance sachet 1 has already been used can be signaled. In addition, the second material layer 3 in the area of the chambers 6 and 9 has a surface refinement, shown here by hatching, in the form of a metallization of the surface, which was applied with the aid of a hot stamping foil. The chambers 6 and 9 are optically highlighted in this way, as a result of which the active ingredient sachet 1 is given a valuable appearance. FIGS. 4 to 8 show different arrangements for carrying out different variants of the method according to the invention for producing such an active ingredient sachet 1, the same components being designated by the same reference numerals. As can be seen from FIG. 4, a first material layer 2, for example a nonwoven, is initially provided via a first material feed 11. Subsequently, on the first material layer 2, discrete dose units of different, for example powdery, active ingredient preparations 12, 13, 14,

15 applied. For this purpose, the active ingredient preparations 12, 13, 14, 15 are dosed onto the material layer 2 from corresponding storage containers 22, 23, 24, 25, the dosing being carried out in a discrete manner, ie such that each applied dose unit of an active ingredient preparation 12, 13, 14, 15 is surrounded by an area in which there is no further active ingredient preparation 12, 13, 14, 15. In the illustration of FIG. 4, the storage containers 22, 23, 24, 25 are arranged one behind the other in the conveying direction F of the first material layer 2. This illustration serves to make it clear that the individual, different active ingredient preparations in the exemplary embodiment shown are applied to the material layer 2 as discrete dose units. However, it is also conceivable that the storage containers older 22, 23, 24, 25 are aligned on a line going into the plane of the drawing in the illustration in FIG. 4 or in another fixed arrangement with respect to one another. In particular, the active ingredient preparations 12, 13, 14, 15 can in principle also be applied to the first material layer 2 in a continuous distribution

A second material layer 3, for example also a nonwoven fabric, is provided via a second material feed 16, which is applied to the first material layer 2 with the active ingredient preparations 12, 13, 14, 15 in between, i.e. placed on top of it and moved together with it in the conveying direction F. The active ingredient compositions 12, 13, 14, 15 are now located between the first material layer 2 and the second material layer 3. In a subsequent welding station 17, the first material layer 2 and the second material layer 3 are welded to one another in sections, in such a way that an active ingredient sachet 1 four separate chambers are formed, with one of the active ingredient preparations 12, 13,

14, 15 is added. In other words, weld seams are formed in the welding station 17, by means of which the two material layers 2 and 3 are connected to one another in sections and at the same time the chambers receiving the individual active substance preparations are formed. One of the weld seams is a weld seam running around the edge, by means of which the outer circumferential contour of the active ingredient sachet 1 is defined. The illustration in FIGS. 4 to 8 is schematic and simplified in that each finished active substance sachet 1 is shown with only one chamber. In fact, in the exemplary embodiment shown here, each active ingredient sachet 1 has four separate chambers.

In a cutting station 18 arranged downstream in the conveying direction F, the finished active ingredient sachet 1 is punched out of the first material layer 2 and the second material layer 3 superimposed thereon, wherein the punching takes place along a line immediately outside of the peripheral weld seam.

The material layers 2, 3 are guided and conveyed along the production line with the aid of guide rollers 19 and conveyor belts 21 which are driven by drive rollers 20.

FIG. 5 shows an alternative arrangement for carrying out an alternative variant of the method for producing an active substance sachet 1. It differs from the arrangement described in connection with FIG. 4 only in that after the welding step in the welding station 17 and before the step of punching out the active substance sachet 1 in the cutting station 18, at least one section of the active substance sachet 1 is printed in a printing station 26 he follows. The printing can take place both in the area of the weld seams formed in the welding station 17 and in the area of the outer chamber walls of the formed chambers. In particular, different sections of the active ingredient sachet 1 can be printed in different ways, i.e. for example in different printing processes and / or in different colors. For this purpose, the printing station 26 can comprise one or more printing devices, with the aid of which at least one section of the active substance sachet 1 can be printed using color printing, pad printing, inkjet printing, flexographic printing and / or laser marking.

Another arrangement for carrying out a further variant of the method according to the invention is shown in FIG. It differs from the arrangement described in connection with FIG. 4 only in that after the step of applying the second material layer 3 via the material feed 16 and before the step of welding in sections in the welding station 17, a hot stamping foil 29 is applied to the second material layer 3 . The hot stamping foil is supplied via a third material feed 27 and comprises at least one transfer foil and a carrier foil, which are not shown individually in FIG. 6 for the sake of clarity. In the subsequent step of welding in the welding station 17, the transfer foil of the hot stamping foil 29 is detached from the carrier foil with the introduction of heat and transferred to the second material layer 3. The used carrier film is wound onto a roll 28 after the welding step. By applying the transfer film to the second material layer 3, at least one section of the surface of the active substance sachet 1 is designed and refined.

FIGS. 7 and 8 show further arrangements for carrying out the production method according to the invention, the arrangements each comprising deep-drawing devices. According to FIG. 7, the first material layer 2 is fed to a deep-drawing device before the step of applying the active substance preparations 12, 13, 14, 15, of which two halves 30, 31 of a deep-drawing mold are shown here. In the deep-drawing device are used to form the chambers First cavities 32 are preformed in the material layer 2. A dose unit of an active ingredient preparation 12, 13, 14, 15 is then introduced into each cavity 32. In the examples shown in FIGS. 7 and 8, a finished active ingredient sachet 1 comprises four separate chambers and thus four deep-drawn cavities 32, one of the active ingredient preparations 12, 13, 14, 15 being received in one of the four chambers. For the sake of clarity, each Wrkstoffsachet 1 is shown in the figures with only one chamber. After filling the individual cavities 32 with the active ingredient preparations 12, 13, 14, 15, the second material layer 3 is applied to the first material layer 2, the latter only resting on the first material layer 2 in the area of the edges delimiting the cavities 32. In the area of these edges, the first and second material layers 2, 3 are subsequently welded to one another in the welding station 17, so that packaging sachets 1 with closed, separate chambers are formed, which are then punched out in the cutting station 18.

The arrangement shown in FIG. 8 differs from the arrangement shown in FIG. 7 in that a second deep-drawing device is provided, of which two halves 33, 34 of a deep-drawing mold are shown. The second material layer 3 is passed through this second deep-drawing device before being applied to the first material layer 2, so that cavities 35 are also preformed in the second material layer 3 by deep-drawing. In the subsequent step of applying the second material layer 3 to the first material layer 2 with the intermediate layer of the active ingredient preparations 12, 13, 14, 15, a cavity 35 formed in the second material layer 3 with its opening is placed on an opening of a cavity 35 formed in the first material layer 2 cavity 32 filled with active ingredient preparation is placed. The first material layer 2 is welded to the second material layer 3 in the welding station 17 in the area of the edges surrounding the cavities 32, 35. In this way, active ingredients 1 are created which are three-dimensionally preformed on both sides.

In addition to the design variants described, any combinations of the individual variants are of course also possible, for example the arrangements according to FIG. 5 and FIG. 8 can be combined so that the two-sided three-dimensionally preformed chambers of the active ingredient sachet 1 are additionally printed before punching. Other combinations of the individual design variants are also conceivable.

Claims

1 . Method for producing an active ingredient sachet (1) with at least one chamber (5, 6, 7,

8, 9, 10), with at least one active ingredient preparation (12, 13, 14, 15) being able to be accommodated in each chamber (5, 6, 7, 8, 9, 10), comprising the following steps:

Providing a first material layer (2) made of a first material;

Applying at least one active ingredient preparation (12, 13, 14, 15) to the first material layer (2);

Applying a second material layer (3) made of a second material to the first material layer (2) with the at least one active ingredient preparation (12, 13, 14, 15) between the first and the second material layer (2, 3) in between; connecting the first material layer (2) and the second material layer (3) in sections to one another in such a way that an active ingredient sachet (1) with at least one chamber (5, 6, 7, 8, 9, 10) is formed, wherein in each chamber ( 5, 6, 7, 8, 9, 10) at least one active ingredient preparation (12, 13, 14, 15) can be included;

Punching out the active ingredient sachet (1) from the first and second material layers (2, 3).

2. The method according to claim 1, characterized in that the active ingredient sachet (1) is formed with at least two separate chambers (5, 6, 7, 8, 9, 10).

3. The method according to claim 1 or 2, characterized in that at least two active ingredient preparations (12, 13, 14, 15) differing in their composition are applied.

4. The method according to any one of claims 1 to 3, characterized in that after the step of connecting the first material layer (2) and the second material layer (3) to one another and before the step of punching out, printing on at least one section of the active ingredient sachet (1) he follows.

5. The method according to any one of claims 1 to 4, characterized in that after the step of applying a second material layer (3) and before the step of connecting the first material layer (2) and the second material layer (3) a carrier film and a Hot stamping foil (29) comprising transfer foil is applied to the second material layer (3), the transfer foil of the hot stamping foil (29) being detached from the carrier foil and transferred to the second material layer (3) in the subsequent joining step.

6. The method according to any one of claims 1 to 5, characterized in that the first material layer (2) before the step of applying the at least one active ingredient preparation (12, 13, 14, 15) is fed to a deep-drawing device in which to form the at least one chamber (5, 6, 7, 8, 9, 10) initially at least one cavity (32) in the first material layer (2) is preformed by deep drawing, with an active ingredient preparation (12, 13 , 14, 15) can be introduced.

7. The method according to claim 6, characterized in that the second material layer (3) is fed to a deep-drawing device before being applied to the first material layer (2), in which at least one cavity (35) in the second material layer (3) is pre-formed by deep-drawing is, wherein in the subsequent step of applying the second material layer (3) to the first material layer (2) with the interposition of the at least one active ingredient preparation (12,

13, 14, 15) in each case a cavity (35) formed in the second material layer (3) comes to rest with its opening on an opening of a cavity (32) formed in the first material layer (2).

8. Active ingredient sachet (1) with at least one chamber (5, 6, 7, 8, 9, 10) wherein in each chamber (5, 6, 7, 8, 9, 10) at least one active ingredient preparation (12, 13, 14, 15) can be included, produced by a method according to one of claims 1 to 7.

9. Wrkstoffsachet (1) according to claim 8, characterized in that the Wrkstoffsachet (1) comprises at least two separate chambers (5, 6, 7, 8, 9, 10).

10. Wrkstoffsachet (1) according to claim 9, characterized in that the active ingredient preparations (12, 13, 14, 15) in at least two chambers (5, 6, 7, 8, 9, 10) differ from one another in their composition.

11. Wrkstoffsachet (1) according to one of claims 8 to 10, characterized in that the first material of the first material layer (2) and / or the second material of the second material layer (3) is water vapor permeable.

12. Wrkstoffsachet (1) according to one of claims 8 to 11, characterized in that the first material of the first material layer (2) and / or the second material of the second material layer (3) is water-soluble.

13. Use of an active ingredient sachet (1) according to claim 11 in a steam generator.

14. Use of an active ingredient sachet (1) according to claim 12 in a washing machine.