TW202210302A - A container for beverage preparation - Google Patents

Abstract

A pod with an inner volume in which a beverage ingredient is stored and in which a beverage is produced when water is introduced inside, said pod (1) comprising a first wall (11) through which water is to be introduced and a second wall (14) through which the beverage is to be dispensed, the pod (1) being made of one or several compostable multilayer materials. Each of said one or several multilayer materials comprises at least one paper layer and at least one polymer barrier layer, said at least one paper layer and at least one polymer barrier layer being attached to one another by an adhesive layer such as to bind them with a bond strength at least equal to 1.6 N/15 mm at 22 DEG C, and 0.22 N /15 mm at 100 DEG C, said at least one polymer barrier layer having a thickness comprised between 10 and 100 microns.

Description

Containers for beverage preparation

The present invention relates to a pod containing beverage ingredients for the preparation of beverages.

It is known to prepare beverages in a dispenser by using sachets containing beverage-making ingredients. The sachet has an interior volume for food or beverage ingredients to be stored therein, and in which the beverage or drink is made when water is introduced into the interior.

In an ecologically responsible approach, some existing pouches are made from compostable or biodegradable materials.

In this document and as explained below, there is a difference between " industrially compostable" and " home compostable".

What properties a material must have in order for it to be defined as "industrially compostable " is established by several specifications, such as the European Norm EN 13432 "Recyclable packaging for composting and biodegradation" Requirements-Test scheme and evaluation criteria for the final acceptance of packaging (Requirements for packaging recoverable through composting and biodegradation-Test scheme and evaluation criteria for the final acceptance of packaging) ", ISO18606, ASTM D6400. According to EN 13432, the series of properties that industrially compostable materials must exhibit are as follows.

- Biodegradability, i.e. the metabolic conversion of compostable material to carbon dioxide. The acceptance level is to achieve 90% biodegradability in less than 6 months and at a temperature of 58°C.

- disintegrability, ie fragmentation and loss of visibility (absence of visual soiling) in the final compost. The samples were composted with organic waste at temperatures between 40°C and 70°C for 3 months (driven by biological processes). At the end, the compost is filtered through a 2mm sieve. The mass of the residue of the test material having dimensions greater than 2 mm must be less than 10% of the initial mass.

- No adverse effect on the composting process.

- Low levels of heavy metals and no adverse effects on compost quality (eg, reduction of agricultural value and ecotoxicological effects on plant growth).

- Other chemical-physical parameters that must remain unchanged after decomposition of the material under study: pH value; salt content; volatile solids; N; P; Mg; K.

At the moment there is no international standard to define what properties a material must possess in order for it to be defined as " home compostable". However, the only differences in the definition of "industrial compostability " in some national regulations (specifically the test procedures of certification bodies (eg TÜV AUSTRIA BELGIUM)) are the following:

- Biodegradability: The acceptance level is 90% biodegradability in less than 12 months and at a temperature of 28°C.

- Disintegrability: The samples were composted at a temperature of 28°C for 6 months.

Until now, existing compostable bags did not have good mechanical, insulating, and preservation properties. In fact, the current state-of-the-art capsules are fragile and susceptible to decomposition due to oxidation, moisture, pressure changes, and the like.

Accordingly, the present invention seeks to provide a sachet for the preparation of beverages which is compostable (preferably home compostable) and which can be associated with functional structure, suitable mechanical, insulation and preservation properties.

The present invention relates to a pouch having an inner volume in which a beverage ingredient is stored and in which a beverage is made when water is introduced into the interior, the pouch comprising a first wall and a second wall through which water is permeable Introduced by the first wall and the beverage dispensed through the second wall, the pouch is made of one or more compostable multilayer materials.

According to the present invention, each of the one or more multilayer materials comprises at least one paper layer and at least one polymer barrier layer, the at least one paper layer and the at least one polymer barrier layer being attached to each other by an adhesive layer bonded, or attached to each other by extrusion coating the barrier layer to the paper layer, such as with a bond strength at least equal to 1.6N/15mm at 22°C and 0.22N/15mm at 100°C Wait for engagement. It is preferred to use an adhesive layer.

Due to the polymer barrier layer, the beverage ingredients are well preserved, and in particular well protected from oxidation and decomposition by moisture. This composition of the sachet provides the consumer with a good shelf life, as well as a fresh and high quality product in the cup. In addition, the thickness of the polymeric barrier layer is defined to be desirably pierceable, such as by a piercing element of a beverage dispenser for which the pouch is configured.

Furthermore, paper presents the advantage of being easily and quickly recognizable by consumers as a compostable material. This prevents consumers from accidentally discarding the packets.

Finally, bonding the paper layer to the polymer barrier layer is strong enough to improve the mechanical strength of the pouch and avoid the pouch being subjected to mechanical stress during storage or during transport (eg pressure changes due to beverage ingredients inside the pouch or Cracks during degassing).

In particular, the adhesive layer provides good bonding properties between both the paper layer and the polymeric barrier layer.

In one embodiment, the adhesive layer is home compostable.

In one embodiment, the adhesive layer exhibits a uniform thickness.

This feature improves the bond between the paper layer and the polymer barrier layer.

In one embodiment, the adhesive layer is applied at an application weight comprised between 2 g/m ² and 15 g/m ² .

In one embodiment, the adhesive layer is made of a polyester-polyurethane elastomer, specifically Epotal® ECO 3702 available from BASF.

In one embodiment, the adhesive layer exhibits a thickness between 1 and 20 microns.

In one embodiment, the at least one polymer barrier layer is a plastic laminate.

The plastic laminate provides the desired mechanical properties, eg with regard to perforability and formability. Punctability is an important feature since the pouches are intended to be pierced in a beverage dispenser. In addition, the plastic lamination system is stretchable, which makes it formable. In other words, it can be easily given a desired shape by stretching it without breaking or tearing.

Advantageously, a wide variety of compostable plastic laminates can be selected.

In one embodiment, the plastic laminate comprises a butanediol vinyl alcohol (BVOH) sheet sandwiched between two polymer sheets, the BVOH sheet being on both sides with a connecting sheet Attached to the polymer sheets, the polymer sheets comprising the following polymers selected from the group consisting of: polylactic acid (PLA), polybutylene succinate Alcohol esters (Polybutylene succinate, PBS), and aliphatic-aromatic polyesters such as polybutylene adipate terephthalate (PBAT), or mixtures of these polymers.

The tie sheet imparts high adhesion between the BVOH sheet and the polymer sheet.

In one embodiment, the polymer sheets are made from Ecovio® commercially available from BASF, specifically Ecovio® 40 FS23N1 EXP.

In one embodiment, the connecting sheet is made of an adhesive resin, and the adhesive resin includes an acid anhydride-modified polymer resin.

In one embodiment, the one or more multilayer materials further comprise a protective layer of a polymeric compostable material.

The protective layer prevents the plastic laminate from sticking to the beverage machine.

In one embodiment, the polymeric compostable material is regenerated cellulose. For example, the polymeric compostable material may be cellophane.

In one embodiment, the one or more multilayer materials further comprise ink printing on one of its surfaces.

Ink printing can be, for example, illustrations, information for the user, and/or machine-readable codes.

In one embodiment, the at least one multilayer material comprises:

- a paper layer having a gram weight comprised between 40gsm and 130gsm;

- a first adhesive layer, which is made of Epotal® ECO 3702, and which is applied at an application weight comprised between 2 g/m ² and 15 g/m ² ; and

- a polymer barrier layer, which is made of a plastic laminate, wherein the polymer sheet is made of Ecovio® (specifically, Ecovio® 40 FS23N1 EXP) and has a thickness comprised between 10 microns and A thickness of between 30 microns, each of the joined sheets was applied at an application weight comprised between 2 g/m ² and 8 g/m ² .

In one embodiment, the at least one multilayer material further comprises:

- a protective layer made of cellophane and having a thickness comprised between 10 and 50 microns, the protective layer comprising an ink print on one of its surfaces; and

- a second adhesive layer, which attaches the paper layer to the adhesive layer, the second adhesive layer is made of Epotal® ECO 3702 and is contained in ^2g /m2 and 15g/ ^m2 One application weight between applications.

In one embodiment, the sachet includes a body having a bottom wall through which water is introduced and a closure cap through which the beverage is dispensed, the closure cap being sealed on the body and being Defining the interior volume therebetween, the body is made of a first multilayer material and the closure lid is made of a second multilayer material different from the first multilayer material of the body.

In one embodiment, the present system is made of the at least one multilayer material comprising the paper layer, the first adhesive layer, and the polymeric barrier layer. The closure cover is made of the at least one multi-layer material, and the at least one multi-layer material further comprises the protective layer and the second adhesive layer.

In one embodiment, the first wall and the second wall are sealed with respect to each other and define the interior volume therebetween, both of the first wall and the second wall being made of the same compostable multilayer material become.

This enables the formation of a symmetrical bag, which is easy to manufacture and use. The user does not need to pay attention to the direction of the injection into the beverage machine.

In one embodiment, both the first wall and the second wall are made of the at least one multilayer material comprising the paper layer, the first adhesive layer, and the polymer barrier layer.

1: bag, compostable multi-layer material

10: Ontology

11: The first wall, the bottom wall

12: Sidewall

13: Around the edge

14: Second wall, closing cover

Additional features and advantages of the present invention are described and are apparent from the description of the presently preferred embodiment set forth below with reference to the accompanying drawings, in which:

[Fig. 1] is a perspective view of a bag according to an embodiment of the present invention;

[Fig. 2] is a perspective cross-sectional view of the bag of Fig. 1; and

[FIG. 3] is a perspective view of a bag according to another embodiment of the present invention.

1 and 2 illustrate a pouch 1 according to an embodiment of the present invention, and FIG. 3 illustrates a pouch according to another embodiment of the present invention.

The sachet 1 has an inner volume in which the beverage ingredients are stored and in which the beverage is made when water is introduced into the interior. The sachet 1 comprises a first wall 11 through which water is introduced and a second wall 14 through which the beverage is dispensed.

The sachet 1 shown in the drawings is specially designed to store coffee grounds inside and to produce coffee beverages through a dispenser. However, the food or beverage ingredient may be of another type, such as a soluble food or beverage ingredient in liquid, semi-liquid, or powder form, whether in insoluble, extractable or soluble form, selected from the following list:

- milk powder or liquid concentrate (eg, milk);

- Chocolate ingredients;

- fruit powder;

- fruit juice powder;

- eating soluble fiber;

- Leafy plants (tea, mint, herbs, etc.);

- roots (ginger, turmeric, etc.);

- flavoring agents;

- vitamins;

- Minerals;

-protein;

-Probiotics;

or a combination thereof.

The bag 1 is made of compostable material. Specifically, Bag 1 is "industrial" compostable or "home" compostable.

The bag 1 is thus made of one or several compostable multi-layer materials. In other words, the walls of all pouches are made of the same compostable multi-layer material, or different compostable multi-layer materials are used for the walls of the pouches.

The one or more multilayer materials include at least one paper layer and at least one polymeric barrier layer.

The paper material for the paper layer can be selected depending on the desired mechanical properties.

The paper layer may be selected to be, for example, formable, ie stretchable. It can be mechanical or chemical paper.

The paper layer is preferably made of Kraft paper. In addition to the mechanical properties of kraft paper, because it is brown, it provides the bag with a compostable visual aspect.

The paper layer may be food safe. For example, the paper layer may be BFR-36.1 according to BFR Recommendations on Food Contact Materials.

Paper layer materials can also be selected to accommodate certain temperature requirements. For example, the paper layer can be selected to enable extraction at high temperatures (60°C to 100°C). Of course, the same paper material can be selected to enable cold water extraction of the encapsulated components, or ambient temperature water extraction or dissolution utilization.

Preferably, the paper layer constitutes at least 50% of one or more of the multiple layers of material of the sachet.

The paper layer may have, for example, a grammage between 40 gsm and 150 gsm (grams per square meter). Preferably, the paper layer has a grammage of 60 gsm.

A polymeric barrier layer should be understood as a layer configured to protect the beverage ingredients in the sachet and provide a good shelf life, as well as provide the consumer with a fresh and high quality product in the cup.

Preferably, the polymer barrier layer is a barrier to liquids, gases (specifically oxygen), and moisture. This protection is important for beverage ingredients, especially coffee, which is very sensitive to moisture-induced oxidation and degradation.

The polymer barrier layer has a thickness comprised between 10 and 100 microns. Preferably, the thickness of the polymer barrier is comprised between 20 microns and 50 microns.

The thickness of the polymer barrier is designed to balance the protection of the beverage ingredients in the sachet with resistance to the piercing elements of the beverage maker. Indeed, the polymer barrier layer should not be too difficult or too easy to pierce by the piercing element.

Preferably, the polymer barrier layer is a plastic laminate.

The plastic laminate may comprise a sheet of butanediol vinyl alcohol (BVOH) sandwiched between two polymer sheets. The BVOH sheet is attached to the polymer sheet on both sides with tie sheets.

The polymer sheet comprises a mixture of polylactic acid (PLA), polybutylene succinate (PBS), and polybutylene adipate terephthalate (PBAT). .

The polymer sheet can be made from Ecovio® (commercially available from BASF, specifically Ecovio® 40 FS23N1 EXP).

In other embodiments, the polymer sheet may be starch based.

BVOH sheets can be made from Nichigo G-Polymer ^™ (Nippon Goshei).

"Tie sheet" refers to the polymer layer that joins the polymer sheet to the BVOH sheet. Linked sheets are typically used to produce materials having at least three coextruded layers or sheets. The connecting sheet can be made of an adhesive resin including an acid anhydride modified polymer resin such as BTR-8002P (Nippon Gohsei).

The paper layer and the polymer barrier layer are attached to each other such as to exhibit therebetween a bond strength at least equal to 1.6 N/15mm at 22°C and 0.22N/15mm at 100°C according to standard ASTM F904.

ASTM F904 is called " Standard Test Method for Comparison of Bond Strength or Ply Adhesion of Similar Laminates Made from Flexible Materials". Materials) " standard international name. As explained in this standard, "This test method covers a procedure for comparing the bond strength or layer adhesion of similar laminates made of flexible materials such as cellulose, paper, plastic films, and foils. This includes the use of Laminates produced by the following procedures: adhesive lamination, extrusion coating, extrusion lamination, and coextrusion.”

The minimum value of the bond strength of 1,6 N/15mm is to be understood as being measured at 22° C. and 50% relative humidity, which corresponds to standard test conditions. As explained in the standard, the test is performed in a standard laboratory atmosphere of 23±2°C (73.4±3.6°F) and 50±5% relative humidity.

The minimum value of the bond strength of 0.22N/15mm is understood to be as measured at 100°C and 50% relative humidity.

Furthermore, the value of joint strength is understood to be measured with a machine having the parameters and settings presented in the standard. Specifically, the jig distance was 25,4mm, and the test speed was 280mm/min±10%.

Bond strength is a key parameter for preventing delamination. Delamination can occur for various reasons, such as overpressure within the capsule. Overpressure can be created by degassing, ie by the beverage ingredients until they are extracted from the capsule, in other words during storage. Overvoltage can also be the result of height variations. Specifically, the pouches can be filled and sealed at a factory at a specific height, and then shipped at a higher height for sale and/or use.

Thus, a good engagement ensures that during storage, if overpressure occurs, or if the capsule is subjected to any type of mechanical stress during storage, the capsule does not rupture.

In one embodiment, the paper layer and the polymer barrier layer are attached to each other by an adhesive layer.

Preferably, the adhesive layer covers one side of each of the paper layer and the polymer barrier layer.

The adhesive layer exhibits a uniform thickness. In other words, there should be no excess or reduced thickness in the adhesive layer. This improves the bond between the paper layer and the polymer barrier layer.

Preferably, the adhesive layer exhibits a thickness between 1 and 20 microns.

Preferably, the adhesive layer exhibits a concentration of polyester-polyurethane elastomer in water.

The adhesive layer is applied, for example, at an application weight comprised between 2 g/m ² and 15 g/m ² .

Preferably, the adhesive layer is made of Epotal® ECO 3702 (BASF). Epotal® ECO 3702 is an aqueous dispersion of polyester-polyurethane elastomer. The composition of such an adhesive layer is disclosed in the PCT patent application published with reference to No. WO2012/013506.

The adhesive layer may further include a hardener. Hardeners are particularly useful for polymer dispersions. The hardener can be, for example, Basonat LR 9056.

For example, the adhesive layer comprises Epotal® ECO 3702 and Basonat LR 9056 added at a percentage between 1% and 10% (eg 3%).

Other adhesives such as:

- BioTAK® S500, an aqueous adhesive based on a specially modified polyester copolymer;

- Morchem PS 255 ECO+CS-95, a two-component adhesive based on polyurethane solvent;

- ADCOTE ^TM BL1001 Adhesive/BCR 1001, which is a two-component amorphous polymer;

- Scitech ST6093G and ST60097, which are water-based two-component adhesives;

- Epotal® P100 ECO polyester-polyurethane elastomer waterborne two-component adhesive.

One or more of the compostable multilayer materials may further comprise a protective layer of polymeric compostable material. The protective layer prevents the paper from clogging the beverage machine. Indeed, a small part of the paper may come off and block the beverage maker, and in particular the piercing element.

The polymeric compostable material may be, for example, regenerated cellulose, specifically Cellophane ^™ .

Preferably, the protective layer is water repellent.

The protective layer is attached to the other layers of the compostable multilayer material, and in particular to the paper layer with the adhesive layer. In other words, the one or more compostable multilayer materials further comprise a second adhesive layer to bond the protective layer and the paper layer together.

The second adhesive layer can be the same as the adhesive layer described above and joins the paper layer and the polymer barrier layer together.

One or more of the multilayer materials may further include ink printing on one of its surfaces. In particular, one or more of the multilayer materials may further comprise ink printing on the protective layer. The ink printing is preferably food safe.

Of course, one or more of the multilayer materials may include ink printing on layers other than the protective layer. One or more multilayer materials may comprise ink printing on the paper layer and/or on the outer surface of the protective layer.

Ink printing can be used, for example, for illustration printing for the user to properly read information about the sachets and/or beverage ingredients.

Ink printing can also be an OID printing (ie optical identification printing) which can be sensed by the beverage machine for automatic parameter setting or the like.

Of course, one or more of the multilayer materials may include multiple and various ink prints, such as both illustrations and OID prints.

The use of regenerated cellulose as a protective layer is advantageous when printing with inks because cellulose possesses good printability, transparency, and readability print qualities.

The following table provides examples of compostable multilayer materials for pouches in accordance with the present invention. The first row of the table ("protective layer") corresponds to the outer layer of the capsule in contact with the external atmosphere, while the last row of the table ("polymer barrier layer") corresponds to the outermost layer of the capsule in contact with the ingredients contained therein inner layer. Each row provides the various layers in order from the outermost to the innermost layer of the capsule wall.

The following table provides more specific (ie specific) examples of possible compostable multi-layer materials for the pouch, where the materials used for the different layers refer to their commercially available commercial names. The reference layers in the following two tables correspond to specific examples of materials presented in the examples in the previous tables.

Compostable Multilayer Material 1:

Compostable Multilayer Material 2:

Of course, other combinations are also possible. Additionally, some layers, such as protective layers and printing, may be removed or added.

Furthermore, in the examples provided, the polymeric barrier layers are preferably symmetrically shaped. Specifically, the two polymer layers (Ecovio® in the above example) are both similar. Similarly, the two tie layers (BTR-8002P in the above example) are both similar. However, in another embodiment, the polymer barrier multilayer may comprise two different polymer layers and/or two different tie layers.

As mentioned above, the sachet 1 is made of one or several compostable multi-layer materials. One or more compostable multi-layer materials may be selected from the examples provided in the above table ("Compostable Material 1" or "Compostable Material 2").

As further described, the sachet 1 according to the embodiment of Figs. 1 and 2 comprises two different multilayer materials for its different walls, whereas the sachet 1 according to the embodiment of Fig. 3 is composed of one for all sachet walls. Made of the same compostable multi-layer material.

In any event, the capsule may be symmetrical or asymmetrical in its shape, regardless of the composition of each of its walls.

In the embodiment shown in FIGS. 1 and 2 , the bag 1 includes a main body 10 and a closure cover 14 . The closure cover 14 covers the body 10 so that the bag 1 is completely closed. The body 10 and the closure lid 14 form an interior volume in which the beverage ingredients are stored.

The body 10 has a three-dimensional shape. Three-dimensional shape shall mean that the body is "formed", or in other words, that the body is not flat. The main body 10 has a frustoconical shape extending around an axis of rotation.

The sachet 1 is asymmetrical with respect to a plane parallel to the closure lid 14 .

The body 10 has a bottom wall 11 and a side wall 12 . The side wall 12 may extend substantially perpendicular to the bottom wall 11 . The body 10 includes a peripheral edge 13 surrounding the side wall 12 . Preferably, the bottom wall 11, the side walls 12, and the peripheral edge 13 are made from a single piece.

The closure cap 14 is flat. The word "flat" shall mean that the closure lid 14 extends substantially in one plane. In other words, the closure cap 14 extends in one plane, but it can deform in a convex or concave plane, depending on the relative pressure between the inside and the outside of the bag. In particular, it may happen that the ingredients contained therein, such as roast and ground coffee, will generate gases, such as carbon dioxide, during storage of the pouches. In this case, an overpressure can develop within the capsule, which forces the (initially flat) cap to expand outward. It can also happen, for example, if the bag is formed, filled, and sealed at a factory near sea level, And then the capsule is transported at a higher altitude where atmospheric pressure is lower, the atmospheric pressure surrounding the capsule changes. In such cases, the (initially flat) cap will be concave inward.

The closing cover 14 is sealed on the main body 10 . In the described embodiment, the closure cap 14 is sealed to the peripheral edge 13 . The closure cap 14 fits tightly to the body 10 such that a complete sealing of the sachet 1 is ensured.

Preferably, the body 10 is made of a first compostable multilayer material, and the closure lid 14 is made of a second compostable multilayer material.

The first compostable multilayer material of the body 10 is preferably also a stretchable material at the same time as the material that allows for proper opening by the piercing element of the beverage maker.

In fact, during beverage making in the machine, water is introduced through the body 10 . Water is injected through the bottom wall 11, which forms the first wall, or injection side, as defined above. For good extraction quality of beverage ingredients (especially coffee), it was found that the opening of the sachet 1 by means of the needle of the machine must be smooth and easy.

Furthermore, the body 10 is formed from a flat blank that is stretched and given a shape. The use of a stretchable material for the body 10 allows for the desired stretching during body formation without breaking or tearing. Furthermore, due to the stretchable material, it is possible to give the body 10 any desired shape and size. For example, the more stretchable the material, the more likely the body is to elongate and the more likely the dimensions of the body are to extend.

In this embodiment, these properties of the pouch body 10 are provided by the compostable multilayer material 1 presented in the table above. Of course, in other embodiments, the layers may be replaced by other materials, particularly those described and presented in this document.

The second compostable multi-layer material of the closure is preferably a material capable of instantaneous or sudden rupture with a small elongation.

During beverage making in the machine, the beverage is dispensed through the lid 14 forming the second wall as defined above. After the water is injected into the inside of the bag, water pressure is generated inside the bag, which promotes the expansion of the components and the expansion of the internal volume of the bag. The dispensing side of the packet 1 (ie the closure lid 14) is thus pressed against the dispensing structure of the machine. The closure cap is pierced by eg a frustum of a machine.

For proper opening of the capsule and integrity of the beverage ingredients (especially coffee), it was found that the opening to the dispensing side (here the closure lid) should be instantaneous (caused by a sudden rupture). The closure cap should tear on piercing, but not extend.

These properties of the closure cap 14 are provided by the multilayer material 2 presented above in the table above. Of course, in alternative embodiments, the layers may be replaced by other materials, selected from those described and presented in this document.

In the embodiment of FIG. 3 , the bag 1 includes a first wall 11 and a second wall 14 . The first wall 11 and said second wall 14 are sealed relative to each other and define an internal volume therebetween.

The pouch 1 is in the form of a macaroon. The bisector plane of the point of gravity of the first wall 11 and the second wall 14 is therefore also the bisector plane of the bag 1 .

The first wall 11 and the second wall 14 may be identical to each other in shape and composition. Specifically, both the first wall 11 and the second wall 14 are made of the same compostable multilayer material.

Preferably, the compostable multilayer material of the sachet 1 exhibits the same properties as the first material of the body 10 in the previously described embodiment with reference to FIGS. 1 and 2 . In other words, the compostable multilayer material from which the pouch 1 of FIG. 3 is made is, for example, one of the compostable multilayer materials 1 presented in the table above.

Accordingly, the present invention proposes a compostable pouch having interesting mechanical properties, in particular with regard to preservation during storage, resistance to mechanical stress, and formability.

Of course, in alternative examples, there may be some differences between the composition of the compostable multilayer material of each of the first wall 11 and the second wall 14 .

It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those of ordinary skill in the art. Such changes and modifications can be made without departing from the spirit and scope of the invention and without detracting from its attendant advantages. Therefore, such changes and modifications do not deviate from the specifications of the appended claims.

1: bag, compostable multi-layer material

10: Ontology

11: The first wall, the bottom wall

12: Sidewall

14: Second wall, closing cover

Claims (15)

A sachet having an internal volume in which a beverage ingredient is stored and which produces a beverage when water is introduced into the interior, the sachet (1) comprising a first wall (11) and a second wall ( 14), the water is introduced through the first wall and the beverage is dispensed through the second wall, the sachet (1) is made of one or more compostable multi-layer materials, characterized in that: the one or more layers Each of the materials comprises at least one paper layer and at least one polymer barrier layer, the at least one paper layer and the at least one polymer barrier layer being attached to each other by an adhesive layer, or by the barrier layer to the paper Extrusion coating of layers attached to each other, such as bonding them with a bond strength at least equal to 1.6N/15mm at 22°C and 0.22N/15mm at 100°C, the at least one polymer barrier layer having a thickness of 10 Thickness between microns and 100 microns. The pouch of claim 1, wherein the adhesive layer is home compostable. The sachet of any one of claims 1 or 2, wherein the adhesive layer is applied at an application weight comprised between 2 g/m ² and 15 g/m ² . The sachet of any one of claims 1 to 3, wherein the adhesive layer is made of Epotal® ECO 3702. The sachet of any one of claims 1 to 4, wherein the polymer barrier layer is a plastic laminate comprising butylene glycol vinyl alcohol ( Butenediol Vinyl Alcohol, BVOH) sheets, these BVOH sheets are The material is attached on both sides to the polymer sheets comprising the following polymers selected from the group consisting of: polylactic acid (PLA), polybutylene Polybutylene succinate (PBS), and aliphatic-aromatic polyesters such as polybutylene adipate terephthalate (PBAT), or mixtures of these polymers. The bag of claim 5, wherein the connecting sheet is made of an adhesive resin, and the adhesive resin includes an acid anhydride-modified polymer resin. The sachet of any one of claims 1 to 6, wherein the one or more multilayer materials further comprise a protective layer of a polymeric compostable material. The sachet of claim 7, wherein the polymeric compostable material is regenerated cellulose. The pouch of any one of claims 1 to 8, wherein the one or more multilayer materials further comprise an ink print on one of its surfaces. The bag of any one of claims 1 to 9, wherein at least one of the layers of material comprises: a paper layer having a grammage comprised between 40gsm and 130gsm; a first adhesive layer, which is made of Epotal® ECO 3702, and which is applied at an application weight comprised between 2 g/m ² and 15 g/m ² ; and A polymer barrier layer made of a plastic laminate as claimed in any one of claims 5 or 6, the polymer sheets made of Ecovio® 40 FS23N1 EXP and having 10 microns and 30 Thicknesses between microns, each of the linked sheets is applied at an application weight comprised between 2 g/m ² and 8 g/m ² . The bag of claim 10, wherein the at least one multilayer material further comprises: a protective layer made of cellophane and having a thickness comprised between 10 microns and 50 microns, the protective layer comprising an ink print on one of its surfaces; and A second adhesive layer, which attaches the paper layer to the adhesive layer, the second adhesive layer is made of Epotal® ECO 3702 and is contained between ^2g /m2 and 15g/ ^m2 between application weights. The bag of any one of claims 1 to 11, wherein the bag (1) comprises a body (10) having a bottom wall (11) and a closing lid (14) through which water permeates Introduced and the beverage dispensed through the closure lid (14) sealed on the body and defining the interior volume therebetween, the body (10) being made of a first multilayer material and the The closure lid (14) is made of a second multilayer material different from the first multilayer material of the body. The bag of claim 12, wherein the body (10) is made of the at least one multilayer material of claim 10, and the closure lid (14) is made of the at least one multilayer material of claim 11 production. The sachet of any one of claims 1 to 11, wherein the first wall (11) and the second wall (14) are sealed relative to each other and define the interior volume therebetween, the first wall ( 11) and the second wall (14) are both made of the same compostable multilayer material. The bag of claim 14, wherein both the first wall (11) and the second wall (14) are made of the at least one multilayer material of claim 10.

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