Manufacturing method and line for manufacturing engraved cellulose-based containers

Abstract

The invention relates to a manufacturing method for producing a single-use food and / or beverage container (1) biodegradable, preferably compostable, for use in a beverage preparation machine on a single-use container production line (20), the manufacturing method comprising: a) providing a cellulose-based container body (2) having an outer surface and an outwardly extending peripheral rim (6), b) filling the container body (2) with a food and / or beverage ingredient (10), c) applying a closure element (7) to the container body (2), d) sealing the closure element (7) to the peripheral rim (6) of the container body (2), according to the invention, the manufacturing method further comprises a step of marking (a1) the container body (2) on its outer surface by printing and / or laser engraving, said marking step being performed before the step of filling the container body with a food and / or beverage ingredient (step b). The invention also relates to a production line for implementing the proposed manufacturing method, and to a single-use food and / or beverage container produced using the proposed manufacturing method.

Description

Technical Field

[0001] This invention relates to the technical field of manufacturing and producing disposable food and / or beverage containers, and more specifically, to the technical field of manufacturing and producing capsules and pouches for beverage preparation. Specifically, this invention relates to methods and production lines for manufacturing capsules or pouches for beverage preparation.

[0002] More specifically, the present invention relates to a manufacturing method and production line for producing disposable containers (e.g., capsules or pouches) that can be used in automated beverage preparation machines and contain products in powder, leaf, or other forms (e.g., powdered roasted and ground coffee or tea, leaf tea, soluble coffee, concentrate, or freeze-dried beverages) intended to be mixed with a liquid (e.g., pressurized hot or cold water) by interacting with the beverage preparation machine to obtain a beverage.

[0003] The present invention also relates to a disposable container, which may be in the form of a capsule or pouch. Background Technology

[0004] Disposable containers for preparing beverages in beverage preparation machines have been known in the art for decades.

[0005] Containers or capsules made from cellulose-based materials (such as paper or pulp) are known in the field of beverage preparation equipment and machinery. Capsules capable of maintaining the quality of the beverage substance within the capsule for at least a certain period of time have been developed. These capsules are typically integrated with linings and / or coatings that have barrier functions, particularly against gases (oxygen) and / or water vapor or moisture.

[0006] For specific systems (e.g., Nespresso) ® Capsules extracted from the Original Line system should allow consumers to identify and differentiate between capsules from different capsule series to choose their favorite coffee based on the time of day. Therefore, it is necessary to differentiate these capsules, just as is currently done with aluminum capsules.

[0007] However, the necessary distinctions, such as those achieved by printing or laser engraving on the capsule, should not damage the capsule or its barrier function, or, in the case of using ink, should fully comply with food safety regulations.

[0008] The purpose of this invention is to solve the problems mentioned above. Summary of the Invention

[0009] As used herein, the terms "machine" or "equipment" may refer to electrically operated devices or machines that can: prepare beverages and / or food from precursor materials or ingredients, or prepare precursor materials from pre-precursor materials that can subsequently be prepared into beverages and / or food. The machine may perform the preparation through one or more of the following processes: dilution; heating; pressurization; cooling; mixing; beating; dissolving; soaking; macerating; extraction; conditioning; brewing; grinding; and other similar processes. The dimensions of the machine may be set for use on a workbench; for example, the length, width, and height of the machine may be less than 70 cm. As used herein, the term "preparation" for beverages and / or food may refer to the preparation of at least a portion of the beverage and / or food (e.g., the beverage is entirely or partially prepared by the machine, or additional fluids, including milk and / or water, may be manually added to the beverage by the end user before consumption).

[0010] As used herein, the terms “container,” “capsule,” or “bag” can refer to any configuration that contains precursor material (e.g., as a single, pre-quantified portion). A container may have a maximum capacity such that it can hold only a single portion of precursor material. A container may be single-use, for example, physically altered after a preparation process that may include one or more of the following: perforation to supply a fluid, such as a liquid like water, to the precursor material; perforation to supply a beverage / food from the container; or opening by a user to extract the precursor material. A container may be configured to operate with a container handling unit of a machine; for example, the container may include flanges for aligning and guiding the container through said unit or arranged on said unit. A container may include a rupture portion arranged to rupture upon exposure to a specific pressure to deliver a beverage / food. A container may have a membrane for sealing the container. A container may have various forms, including one or more of the following: truncated conical; cylindrical; disc-shaped; hemispherical; and other similar forms. The container can be formed from various materials, such as metal or plastic, or combinations thereof with wood pulp. The material can be selected such that it is: food-safe; and able to withstand the pressure and / or temperature of the preparation process. The container can be defined as a capsule, wherein the capsule may have an internal volume of 5 ml to 100 ml. Capsules include coffee capsules, for example, Nespresso. ® Capsules (including Classic, Professional, Vertuo, Dolce Gusto or other capsules).

[0011] As used herein, the term "system" or "beverage or food preparation system" may refer to any combination of two or more of the following: beverage or food preparation machinery; containers; server systems; and peripheral devices.

[0012] As used herein, the term "beverage" can refer to any substance that can be processed into a form suitable for consumption, which may be iced or hot. A beverage can be one or more of the following: solid; liquid; gel; paste. A beverage may include one or a combination of the following: tea; coffee; hot chocolate; milk; liqueur; vitamin compositions; herbal teas / brewed teas; brewed water / flavored water; and other extractable substances. As used herein, the term "food" can refer to any substance that can be processed into a nutrient for consumption, which may be iced or hot. Food can be one or more of the following: solid; liquid; gel; paste. Food may include yogurt; mousse; frozen dessert; soup; ice cream; fruit sorbet; custard; smoothie; and other substances. It should be understood that there is some overlap between the definitions of beverage and food; for example, a beverage can also be a food, and therefore, the machine described for preparing a beverage or food does not preclude the preparation of both.

[0013] As used herein, the term "precursor material" can refer to any material that can be processed to form part or all of a beverage or food. Precursor materials can be one or more of the following: powder; crystalline; liquid form; gel; solid; and others. Examples of beverages that form precursor materials include: ground coffee; milk powder; tea leaves; cocoa powder; vitamin compositions; herbs, such as those used to form herbal / infused teas; flavorings; and other similar materials. Examples of foods that form precursor materials include dried vegetables or broths as anhydrous soup powders; powdered milk; flour-based powders, including custard; powdered yogurt or ice cream; and other similar materials. Precursor material can also refer to any pre-precursor material that can be processed into a precursor material as defined above, i.e., any precursor material that can be subsequently processed into a beverage and / or food. In examples, pre-precursor materials include coffee beans that can be ground and / or heated (e.g., roasted) into precursor materials.

[0014] As used herein, the term "fluid" (as opposed to fluid supplied by a fluid conditioning system) may include one or more of the following: liquid, such as water; milk; others.

[0015] As used herein, the term "wood pulp-based" can refer to a material or part of a material forming a container, which is one or more of the following: porous; fibrous; cellulose; formed of cellulose material; formed of natural cellulose material; formed of reconstituted or regenerated cellulose material; nonwoven; consisting entirely of wood pulp or a composition of wood pulp, and formed by wet processing. The thickness of the wood-based material can be from 0.25 mm to 0.75 mm, or about 0.5 mm. The wood-based material can be from 200 gsm to 400 gsm.

[0016] As used herein, the term "nonwoven" can refer to nonwoven or knitted woven fabrics. Nonwoven materials can be made of fibers bonded together. As used herein, the term "porous" can refer to a material constructed with pores to allow water (or other liquids) to pass through. As used herein, the term "fibrous" can refer to a material composed of fibers, which may be present in one or more of the material's constituent parts. As used herein, the term "cellulose" or "cellulose material" can refer to conventional wood and / or non-wood materials, such as Manila hemp, sisal, jute, bleached and unbleached softwood and hardwood species. Cellulose materials can include regenerated or reconstituted cellulose. As used herein, the term "natural cellulose material" can refer to conventional wood materials that are not regenerated. As used herein, the term "reconstituted or regenerated cellulose material" can refer to natural cellulose materials that have undergone treatment (including reconstituted or regenerated), examples of which include rayon and lyocell fibers. As used herein, the term "wood pulp" can refer to lignocellulosic cellulose fibrous materials, which can be prepared by mechanically or chemically separating cellulose fibers from one or more of wood, fiber crops, paper, or rags. As used herein, the term "wet forming" can refer to the process of forming from an aqueous solution of fibers. The aqueous solution of fibers can be heated and pressed in a mold to shape the material and remove water from it.

[0017] In these respects, the present invention provides a method for manufacturing biodegradable, preferably compostable, single-use food and / or beverage containers for use in beverage preparation machines on a single-use container production line, according to claim 1.

[0018] More specifically, the manufacturing method protected by the claims is used to produce biodegradable, preferably compostable, single-use food and / or beverage containers for use in beverage preparation machines on a single-use container production line, and includes:

[0019] a) Provide a cellulose-based container body having an outer surface and outwardly extending peripheral edges.

[0020] b) Fill the container body with food and / or beverage ingredients.

[0021] c) Apply the sealing element to the container body.

[0022] d) Seal the closure element to the periphery of the container body.

[0023] According to the present invention, the manufacturing method further includes the step of marking the outer surface of the container body by printing and / or laser engraving, the marking step being performed before the step of filling the container body with food and / or beverage ingredients.

[0024] The proposed method enables the manufacture of beverage containers that include distinguishing information on their surface, while ensuring that the marking process does not damage any part of the container body.

[0025] According to one possible feature, during the marking step (a1), the container body is marked by printing and / or laser engraving at one or more locations on the container body. The marking step enables the marking of one or more elements that can form a pattern.

[0026] Preferably, the marking step is a laser engraving step. Since laser engraving is inkless, it helps to obtain a fully biodegradable / compostable container solution with improved visual distinguishability.

[0027] Specifically, the sealing element of the container is a sealing film or a second container body, which, when sealed with the peripheral edge of the container body, forms a capsule or a sac, respectively.

[0028] The container (such as a coffee capsule or pouch) can then be marked with marked elements or patterns at one or more specific locations on its outer surface.

[0029] The elements or patterns on the mark can form a differentiating mark that allows the end consumer to distinguish and select the type of container they want. The elements or patterns on the mark can be selected from a group consisting of: logos, brand series, product names, trademarks, coding information, and combinations or weakened areas thereof.

[0030] More specifically, when the container is a capsule, the container body includes a bottom wall, cylindrical side walls, and an annular flange that connects to the side walls on one side and to the peripheral edge on the other side. In addition to the marking step, marking may also be applied to the side walls and / or bottom wall of the container body.

[0031] Therefore, depending on the type and / or size of the elements or information marked on the capsule, the marked elements may be located only on the sidewall or the bottom wall. Alternatively, the marked elements may be marked on both the sidewall and the bottom wall.

[0032] Specifically, when the container is a sac, both the container body forming the closure element and the second container body include a bottom wall with outwardly extending peripheral edges. In this configuration, one or both container bodies are marked on their bottom walls.

[0033] This allows end consumers to accurately identify the information presented on the bag and select the bag accordingly.

[0034] According to another feature of the container (capsule or pouch), the container body is provided with a liner and / or coating having at least one barrier function. The barrier function is preferably a gas barrier, which is preferably an oxygen and / or moisture or water vapor barrier.

[0035] Therefore, the proposed manufacturing method also includes an inspection step (a2) for checking the integrity of the lining and / or coating of the container body. Preferably, the inspection step (a2) is performed after the marking step (a1) and before the filling step (b).

[0036] As a particular option, the container body is removed from the production line if damaged lining and / or coating is detected on the container body during the inspection step. This feature is particularly interesting because it enables the removal from the production line of containers with damaged barriers that would result in containers that are unsatisfactory to the end user, especially when the container contains a product sensitive to gases (particularly oxygen) and / or water vapor and moisture (preferably roasted and ground coffee).

[0037] As mentioned, the container body is made of cellulose-based material. Cellulose-based material is a plant-based fiber material that includes optionally bleached wood and / or non-wood fiber materials.

[0038] More specifically, cellulose-based materials are selected from a list consisting of: paper, calendered paper, parchment, cardboard, molded pulp, or combinations thereof.

[0039] By way of example, the container body can be made of a pulp-based material, preferably a molded pulp-based material, which is preferably made of paper pulp or wood pulp. In this proposed option, the container can be made using a wet or dry pulp molding process.

[0040] Alternatively, the container body may be made of a paper-based material, preferably a formable paper-based material, preferably selected from a list of: kraft paper, calendered paper, parchment, cardboard, or combinations thereof.

[0041] According to another aspect, the present invention also relates to a production line for disposable food and / or beverage containers as described above, the disposable food and / or beverage containers comprising a cellulose-based container body having an outer surface and an outwardly extending peripheral edge. As proposed, the production line includes:

[0042] - A receiving station for receiving the main body of the container.

[0043] - A marking station for printing and / or laser engraving on the outer surface of the container body.

[0044] - A filling station for filling the container body with food and / or beverage ingredients.

[0045] -A sealing station used to seal the sealing element onto the container body.

[0046] If protected by the claims, the marking station is located before the filling station.

[0047] Positioning the marking station before the filling station allows for the addition of specific modules to the production line preceding the filling and sealing stations (which can be configured as a combined station). This may avoid the need to redevelop the entire production line.

[0048] Specifically, the marking station is a laser engraving station. The marking station can use a CO2 laser operating at an optical power between 0.1W and 90W, with a focal length between 9μm and 11μm. The laser frequency is typically between 1kHz and 250kHz, and typical marking speeds are between 800mm / s and 20000mm / s. Different focal points can also be used to achieve the desired engraving effect, such as offsets of + / - 5mm relative to the initial focal point.

[0049] By adjusting laser parameters and range, such as pulse duration, energy density or intensity, marking speed, and beam width, precise control over the depth and width of laser marking and writing can be achieved. Therefore, in addition to the information to be laser-engraved on the product, different font styles (bold, uppercase, italic, etc.) can be implemented, ensuring important diversity in distinguishing the proposed containers (capsules and sacs).

[0050] Specifically, the marking station is configured to allow the container body to be marked at one or more locations on the outer surface of the container body.

[0051] For example, if the container is a capsule, the marked elements or patterns can be positioned on one or more locations on the bottom and / or side walls.

[0052] For example, if the container is a sac, the marked elements or patterns can be positioned on the bottom wall of the first container body and / or the second container body (forming the upper and lower walls of the sac).

[0053] The present invention also proposes disposable food and / or beverage containers manufactured according to the proposed method. Such containers typically comprise a cellulose-based container body, preferably a pulp-based or paper-based container body, including a peripheral edge, wherein the container body is provided with a lining and / or coating having at least one barrier function, and a closure element for the container body. Furthermore, according to the present invention, the disposable container includes at least one laser-engraved marking element or pattern forming a distinguishing feature.

[0054] As proposed, engraved marking elements or patterns form a distinguishing mark, which is selected from a group consisting of: logos, brand series, product names, trademarks, coding information, and combinations or weakened areas thereof. This provides a variety of options for differentiating containers, thereby achieving an improved consumer benefit.

[0055] Specifically, disposable food and / or beverage containers can be capsules or sacs. Therefore, the sealing element is a sealing film or a second container body that has a barrier function against gases and / or water vapor, and forms a capsule or sac respectively when sealed with the peripheral edge of the container body.

[0056] By way of example, the capsules or pouches mentioned are coffee capsules or pouches that include single-use food and / or beverage containers as protected by the claims.

[0057] The present invention also relates to the use of disposable food and / or beverage containers in the preparation of beverages and / or food in a beverage preparation machine. Preferably, the disposable container is a biodegradable and / or compostable capsule or pouch, and is preferably used for the preparation of coffee beverages.

[0058] The proposed manufacturing method and related production line ensure that the container meets the required high-quality standards and that the coffee ingredients stored inside the container are kept in a protective atmosphere that is highly protective against oxygen and water vapor.

[0059] In addition, the proposed labeled containers provide consumers with improved visual differentiation.

[0060] The foregoing aspects of the invention can be combined in any suitable manner. Furthermore, various features herein can be combined with one or more of the foregoing aspects to provide combinations other than those specifically illustrated and described. Further objects and advantageous features of the invention will become apparent from the claims, detailed descriptions, and accompanying drawings. Attached Figure Description

[0061] The invention is further described with reference to the following examples. It should be understood that the invention protected by the claims is not intended to be limited in any way by these embodiments.

[0062] Embodiments of the present invention will now be described by way of example with reference to the following accompanying drawings, in which:

[0063] - Figure 1 This is a side view of the capsule body according to the present invention;

[0064] - Figure 2A and Figure 2BThe images show capsules manufactured according to the method of the present invention, displaying different laser engravings;

[0065] - Figure 3A This is a schematic side sectional view of the manufacture of a capsule according to the manufacturing method of the present invention;

[0066] - Figure 3B and 3C This is a top view of the capsule manufactured according to the manufacturing method of the present invention, showing different laser engravings;

[0067] - Figure 4 This is a block diagram illustrating the manufacturing method of the present invention; and

[0068] - Figure 5 This is a schematic side view of the production line of the present invention. Detailed Implementation

[0069] As used in this specification, the words “including,” “contains,” and similar terms should not be construed as having an exclusive or exhaustive meaning. In other words, these terms are intended to mean “including but not limited to.”

[0070] Any references to prior art documents in this specification should not be construed as an admission that such prior art is well-known or constitutes part of common general knowledge in the art.

[0071] Figures 1 to 3C Containers made of biodegradable materials and labeled according to the proposed method are proposed. These containers are made of biodegradable materials and are biodegradable as a whole. However, in addition to being biodegradable, they are preferably compostable, and most preferably compostable at home. They are made of combinations of biodegradable materials, combinations of compostable materials, combinations of compostable materials, or combinations of biodegradable, compostable, and compostable materials.

[0072] Generally speaking, the term "biodegradable" can be understood as meaning that the material can be broken down by bacteria or other biological processes.

[0073] The phrase "biodegradable materials" can be understood as any material that can be broken down into environmentally harmless products by biological processes (such as microorganisms, like bacteria, fungi, or algae). This process can be carried out in an environment with or without oxygen (aerobic). This can be understood, for example, to mean that composting can be carried out without any residue. Specifically, at the end of the composting process, there are no residues of materials that could cause environmental problems, or any non-biodegradable components.

[0074] Generally, the term "compostable" can be understood as meaning that a material can essentially decompose into organic matter within weeks or months during composting. At the end of the composting process, once the material is completely decomposed, it can supply nutrients to the land. International standards (such as EU 13432 or US ASTM D6400) provide a legal framework for specifying the technical requirements and procedures for determining the compostability of materials. For example, according to these standards, compostable materials must be biodegradable and disintegrable (i.e., broken down and invisible in the final compost) and must not negatively impact the composting process and quality. Composting can be carried out in home composters and / or industrial composting sites. Limitations related to wind, sunlight, drainage, and other factors may exist at such sites.

[0075] Biodegradation can be tested according to standards such as ISO 14855, ISO 17556, or ISO 14851. For example, to be considered "industrially compostable," one test requires that at least 90% of the material be biodegraded within 6 months under controlled conditions. Similar tests also exist for home composting certification.

[0076] For the requirement of "home compostable," home compostable materials can be composted within weeks or months in a home composting device such as a compost bin or home compost box (e.g., the material degrades by at least 90% within 12 months at ambient temperature). As a result of the composting process, home compostable materials can be transformed into nutrient-rich soil. Therefore, home compostable containers can be easily disposed of in a home compost pile after their use. Additionally, the term "material composition" can be understood as, for example, the composition, combination, and / or arrangement of (different) materials, which preferably (completely) form a (homogeneous) structure, such as a container or a segment thereof.

[0077] Figure 1 , Figure 2A and Figure 2B An embodiment of a container 1 manufactured according to the present invention is presented in the form of a capsule 1a. The capsule 1a is used to prepare a beverage in a beverage preparation machine (not shown). Specifically, the capsule is intended to be inserted into a Nespresso machine. ® Extraction is performed in the Original Line beverage preparation machine in a manner described, for example, in one or more of EP0512468A1, EP0512470A1, EP1654966A1 or EP2142054A1.

[0078] The capsule 1a includes a container body 2 and a sealing element 7. The container body is in the form of a cup-shaped body 2a with an opening at a first end, forming a chamber for the beverage ingredients 10. The sealing element 7 is in the form of a sealing film 7a, used to seal the cup-shaped body 2a at the opening.

[0079] The cup-shaped body 2a is made of cellulose pulp, and is therefore biodegradable, preferably compostable.

[0080] The sealing membrane 7a is made into a laminate with barrier function and is sealed onto the cup-shaped body 2a to form an airtight disposable container.

[0081] The term "cellulose pulp" refers to pulp comprising more than 50% by weight of cellulose fibers, preferably in the range of 80% to 100%.

[0082] The term "cellulose fiber" refers to a fiber having a wood and / or no wood source. As a non-limiting example, fibers include: hardwood cellulose fiber, softwood cellulose fiber, wheat fiber, corn fiber, bagasse fiber, bamboo fiber, hemp fiber, cotton fiber, other similar vegetable or plant fibers, or combinations thereof.

[0083] The cup-shaped body of the capsule is preferably obtained by molding dry or wet (preferably wet) cellulose pulp in a mold. Such capsules are proposed in WO 2023 / 052349 A1, WO 2023 / 052350 A1, WO 2023 / 052352 A1 and WO 2023 / 051967 A1; the contents of these applications are incorporated herein by reference. These applications disclose compostable capsules molded from pulp, and specifically, their structure and methods of formation. (By Nespresso) ® The capsules developed and marketed, preferably containing roasted and ground coffee, are a complementary solution to aluminum capsules and are designed to work with Nespresso. ® The same method used in Nespresso aluminum capsules ® Used in Original Line beverage machines.

[0084] Alternatively, the cup-shaped body 2a can be formed from a sheet of cellulose pulp by deforming it into a mold to give the sheet the desired cup shape, as is commonly done by those skilled in the art.

[0085] The cup-shaped body 2a includes at least a bottom wall 3 (which closes the cup-shaped body at its second end), a cylindrical side wall 4, an annular flange 5 connected to the side wall 4, and an outwardly extending peripheral edge 6 that extends from the annular flange 5 for sealing the sealing membrane 2 thereon.

[0086] As shown in the figure, the cup-shaped body 2a is preferably rotationally symmetric (axis A1). Preferably, the cylindrical wall 4 has a truncated conical shape, a circular cross-section, and a diameter that increases toward the annular flange 5.

[0087] The cup-shaped body 2a also includes a rigid portion 11 disposed between the sidewall 4 and the bottom wall 3 to harden the cup-shaped body 2a of the capsule 1a. In particular, the rigid portion 11 is designed to harden the bottom wall 3, which forms a perforated area to be perforated by one or more penetrating elements of the beverage preparation machine.

[0088] The sidewall 4 and the annular flange 5 are integral and therefore made of the same material.

[0089] The cup-shaped body 2a also includes a liner 8 laminated on its inner surface. The liner 8 has a barrier function, specifically a barrier against oxygen, water vapor, and moisture, to achieve optimal preservation of the ingredients, preferably coffee, to be stored in the capsule 1a.

[0090] Liner 8 is typically made into a biodegradable multilayer structure that includes barrier functions against gases and water (vapor / moisture).

[0091] The term "multi-layered structure" can be understood as, for example, a structure comprising different portions arranged in the form of pleats, slats, layers, or sheets. Preferably, these layers can be arranged such that they can extend parallel to each other to form a film. Preferably, the different layers are laminated to form a foil or film. However, other techniques for "connecting" the different layers can also be used, such as blow molding and / or cast film co-extrusion, extrusion coating, or even sealing.

[0092] The liner 8 can be constructed as a multi-layered compostable plastic film structure, comprising one or more of the following:

[0093] - Polylactic acid (PLA) layer,

[0094] - Polybutylene succinate (PBS) layer,

[0095] - Polybutylene adipate terephthalate (PBAT) layer,

[0096] - Polyhydroxyalkanoate (PHA) layer,

[0097] - Polycaprolactone (PCL) layer,

[0098] - Any combination of them.

[0099] In addition, the secondary layer includes an oxygen barrier layer, which includes one or more of the following:

[0100] -Butene glycol-vinyl alcohol copolymer (BVOH) layer,

[0101] - Polyvinyl alcohol (PVOH) layer,

[0102] -PVOH copolymer layer,

[0103] - Polyglycolic acid (PGA) layer, or

[0104] - Metallized coating

[0105] -SiOx-based coatings,

[0106] -AlOx-based coatings or

[0107] - Their combination.

[0108] For example, it can be used under the brand name Ecovio ® A specific combination of materials that form an oxygen barrier layer, obtained through commercial purchase.

[0109] Additional layers with additional physical properties can be provided. For example, layers with moisture-barrier or water-barrier functions can be provided. Such layers may include cellophane, metallized coatings, SiOx coatings, or AlOx-based coatings.

[0110] More specifically, at least one layer of the preferred multi-layer compostable plastic film structure is rich in calcium carbonate (CaCO3) at a weight of 1% to 70% by weight. The use of CaCO3 is particularly interesting because it can reduce the amount of materials required, such as the Ecovio needed. ® In addition, it does not change its barrier properties or home compostability.

[0111] Therefore, the secondary layer includes a structure, preferably a multi-layered structure, wherein each layer can be customized to provide a separate function to the secondary layer. For example, the multi-layered structure of the secondary layer of the capsule of the present invention facilitates the use of a variety of materials, each capable of performing at least one function.

[0112] Alternatively, the barrier lining can be replaced by a coating that provides the same function.

[0113] like Figure 2A and Figure 2B As can be seen, the outer sidewall 4 of capsule 1a is engraved. The laser-engraved elements are distinguishing marks 15a and 15b, which in this case are product series, i.e., the commercial name of the coffee stored in the capsule.

[0114] exist Figure 2A In the capsule 1a, there is an engraved distinguishing mark 15a corresponding to the capsule series "Peru", which allows consumers to identify the capsule and the related coffee contained in the capsule.

[0115] Typically, because laser engraving is focused and precise, it can engrave any type of information with high definition. The result is readable text information (here, the "Peru" coffee series). Figure 2A In this case, the distinguishing mark of the engraving is similar in color to or slightly darker in color (due to the depth of the engraving) to the rest of the pulp molded container body 2, and can be identified as text information of the same color tone.

[0116] exist Figure 2B In the text, the distinguishing mark 15b, which is laser-engraved, is visually different from... Figure 2A The distinguishing mark 15a is laser-engraved on capsule 1a. The readable and writable information forming the distinguishing mark 15b corresponds to the capsule series "Emilia".

[0117] like Figure 2B As shown, the distinguishing mark 15b is white, at least whiter than the cellulose-based molding pulp of the capsule body 2a. In this case, the contrast between the material of the capsule body 2a and the distinguishing mark 15b is improved.

[0118] Generally speaking, distinguishing marks can be formed by one or more engraved elements or patterns.

[0119] Furthermore, the engraved distinguishing mark can be any type of distinguishing element or pattern. For example, it can be selected from a group consisting of: logos, brand series, product names, trademarks, coding information, and combinations or weakened areas thereof, depending on the type of distinguishing mark required to ensure sufficient differentiation for consumers when they choose their coffee capsules.

[0120] The following is combined with Figure 4 and Figure 5 The labeling process of the capsules described above is presented.

[0121] Figures 3A to 3C An embodiment of a container 1b manufactured and labeled according to the present invention is presented in the form of a capsule. The capsule 1b is used to prepare a beverage in a beverage preparation machine (not shown). Specifically, the capsule is intended to be inserted into a Nespresso bottle. ® Professional beverage machines employ principles described, for example, in WO 94 / 02059 and EP 1090574 A1. The beverage preparation machine may include elements for injecting fluid into a capsule 1b and elements for opening the capsule 1b under the increased pressure of the fluid injected into it.

[0122] Similar to Figures 1 to 2B Capsule 1a disclosed in China, Figures 3A to 3C The capsule 1b is made of a biodegradable material composition, and more preferably of a compostable material composition.

[0123] The capsule 1b includes a container body 2 (here in the form of a half-shell 2b) opening at a first end and a closing element 7. The closing element 7 is in the form of a (second / closed) half-shell 7b for closing the half-shell body 2b at the opening position. The half-shell 2b is preferably rotationally symmetric (axis A2) and includes a circular chamber forming a cavity 9 (or storage portion) for the beverage ingredients 10, and an outwardly extending peripheral edge 6 connected to the circular chamber 9.

[0124] The semi-shell body 2b is made of a biodegradable, preferably compostable, material and can be shaped from a sheet comprising at least one layer of a cellulose-based formable material (e.g., paper) by deforming it into a mold to give the sheet the desired cup shape with the cavity 9, as is customary to those skilled in the art.

[0125] The term "formable" can be understood as, for example, that the material is malleable, flexible and / or shaped, preferably with or without the support of additional tools and / or preferably with or without the application of heat and / or water and / or compressed air.

[0126] The enclosed semi-shell 7b has a similar material and shape to the semi-shell body 2 and is sealed to the semi-shell body 2 to form a symmetrical, airtight, disposable container. More specifically, the peripheral edge 6 of the enclosed semi-shell 7b is attached to the peripheral edge of the semi-shell body 2, for example, by sealing, preferably by heat sealing or ultrasonic sealing.

[0127] For example, as proposed in this embodiment, the two half-shells (body 2 and closure 7b) are made in the form of a multi-layer structure, which includes a primary layer 12, a secondary layer 13 and an optional filter layer 14 with filtration function.

[0128] Specifically, the primary layer 12 is arranged opposite to the secondary layer 13 and the chamber 9, thereby forming the outer (or outer) surface of the capsule 1b.

[0129] As a supplement, the third layer 14 is arranged to face the chamber 9 with respect to the secondary layer 13, thereby forming the interior of the chamber 9.

[0130] The primary layer 12 comprises a cellulose-based material, preferably a paper-based material. The paper-based material can be a stretchable or formable paper material and / or parchment having an elongation at break of at least 6%. For example, the material of the semi-shells 2b and 7b can be formable by stretching (and / or permanently deforming) in both the transverse and longitudinal directions. For example, the material of the semi-shells 2b and 7b may comprise a formable paper material, preferably having a basis weight between 50 g / m² and 150 g / m². For example, the formable paper material may be kraft paper.

[0131] The secondary layer 13 includes a coating or, preferably, a multi-layered compostable plastic film structure that provides the necessary barrier function for the capsule 1b. For example, this secondary layer may have a bonding... Figures 1 to 2B The lining of capsule 1a is similar to the lining structure of the lining 8 disclosed.

[0132] The filter 14, similar to the other layers of the semi-shell body 2b, is biodegradable, preferably compostable, and comprises one or more filter materials, including one or more of the following:

[0133] - Polylactic acid (PLA).

[0134] - Polybutylene succinate (PBS).

[0135] - Bio-based polybutylene succinate (BioPBS).

[0136] -Ecovio ® ,

[0137] - Cellulose fiber-based materials

[0138] - Regenerated cellulose (cellophane), or

[0139] - Their combination.

[0140] Preferably, the filter layer 14 comprises a cellulose fiber-based material, which may include one or more of the following: paper, supercalendered paper, and / or filter paper.

[0141] Due to its filtration function, the filter layer 14 can filter out particles that might otherwise leave the chamber 9 during the beverage preparation process.

[0142] Furthermore, the semi-shells 2b and 7b can have any shape, geometry, or size. Preferably, the shape of the semi-shells 2b and 7b corresponds to the geometry of the capsule support of a beverage preparation machine (not shown). Such a capsule structure is proposed in PCT / EP2023 / 058915, the contents of which are incorporated herein by reference.

[0143] In the proposed embodiment, the closing element 7 is a closed half-shell 7b; however, it can also be made of a similar combination. Figure 1 The closed membrane shown in Figure 2 forms, thereby generating asymmetric cysts.

[0144] In the proposed embodiment, the capsule 1 is circular and has a total diameter of approximately 53 mm (including the peripheral edge). However, the size of the capsule can vary, and the diameter can be between 40 mm and 65 mm, depending on the type of beverage preparation machine it is intended for.

[0145] like Figure 3B As shown, the capsule 1b is marked with a distinguishing mark 16a on its top side, indicating the product series (Ristretto) and Nespresso. ® The logo and circular pattern, which has a technical function of weakening the paper-based material to facilitate extraction, are distinguished by the use of... Figure 2A The distinguishing mark 15a is made by laser engraving using a similar engraving method and parameters, which will not be repeated to avoid redundant description. Therefore, as previously presented, the distinguishing mark 16a appears as a similar shade on paper; however, the distinguishing mark 16a can be distinguished from the paper-based material.

[0146] exist Figure 3C In the middle, the capsule 1b is also marked with the distinguishing mark 16b on its top side. Distinguishing mark 16b is also the product series (Ristretto) and Nespresso. ® Logo. However, the result of laser engraving is not a tonal mark, but a white mark. Distinguishing mark 16b has a whiter color than the paper-based material. Used with... Figure 2B The laser engraving method and parameters are similar to those used for the distinguishing mark 15b to produce the distinguishing mark 16b.

[0147] The following is combined with Figure 4 and Figure 5 The labeling process of the proposed capsule 1b is presented.

[0148] The manufacturing method of the present invention is in Figure 4 Presented in block diagram form, this diagram illustrates the various steps leading to the manufacture of a biodegradable, preferably compostable, single-use food and / or beverage container 1. The manufacturing method combines... Figure 5 The production line 20 is illustrated schematically.

[0149] As understood, container 1 can be in the form of capsule 1a or pouch 1b as described above, comprising a container body 2 sealed with a closure element 7, thereby forming a storage portion 9 (chamber). The final container includes a barrier liner 8 or coating to provide the necessary barrier for preserving the beverage ingredients 10 stored in the chamber 9. These containers will be used in beverage preparation machines, such as Nespresso... ® Original Line machine or Nespresso ® Professional Line. However, these containers can be used in other beverage preparation machines, as long as they are compatible with such machines.

[0150] like Figure 4 As can be seen, the manufacturing method includes the following steps:

[0151] a) Provide a cellulose-based container body 2 having an outer surface and an outwardly extending peripheral edge 6,

[0152] a1) Marking is performed on the outer surface of the container body 2 by printing and / or laser engraving.

[0153] a2) Optionally, inspect the integrity of the lining 8 and / or coating of the container body 2.

[0154] b) Fill the container body 2 with food and / or beverage ingredients 10.

[0155] c) Apply the sealing element 7 to the container body 2.

[0156] d) Seal the closure element 7 with the peripheral edge 6 of the container body 2.

[0157] In the first step a), a cellulose-based container body is provided at a receiving station 22 designed to receive an empty container body 2. As previously disclosed, the final container 1 can be a capsule 1a or a sac 2a. It can also be any type of container suited to the intended use.

[0158] In detail, the container body 2 may be made, for example, a pulp-molded cup 2a or a paper-based semi-shell 2b. As is known in the art, the container body 2 includes an outwardly extending peripheral edge 6, which, in addition to its sealing purpose of sealing the closure element 7 thereon, can also be used, for example, to grip the container body 2 during the manufacture of the container 1.

[0159] The receiving station 20 is adapted to receive the design of the container body 2 for use in manufacturing the final container, which may be, for example, a capsule 1a or a pouch 1b.

[0160] Prior to filling step b), the manufacturing method includes step a1) marking the outer surface of the container body 2. Depending on the elements and / or patterns of the marking, this marking can be used to distinguish the final formed container from other containers. The elements and / or patterns of the marking can be one or more of a logo, brand series, product name or series, trademark, and combinations thereof. This is, for example, in... Figure 2A , Figure 2B , Figure 3B and Figure 3C As can be seen in the text.

[0161] However, the marked elements and / or patterns can also be coded information that encodes extraction parameters read by the beverage machine to provide consumers with optimized extraction, or weakened areas used to provide breakpoints for extracting the product from the container.

[0162] exist Figure 5The marking station 24 is the visible marking station for the step a1 of marking the container. When the marking step a1 uses laser engraving technology, the marking station 24 is a laser engraving station and integrates one or more lasers, such as CO2 lasers, which are positioned and configured to provide the required laser engraving.

[0163] Such as combination Figures 1 to 3C As disclosed, the markings on the container body 2 can be made, for example, on the outer surface of the container body. For instance, they can be made at one or more locations on the sidewalls 4 and / or the bottom wall 3. The markings can be done by printing and / or laser engraving. However, laser engraving may be more preferred due to its inkless solution.

[0164] To ensure that the capsule body 2 is free from defects in itself and in the liner 8 and / or coating, thereby providing the necessary barrier against oxygen and water vapor, for example, in addition to the supply step a) or the marking step a2), the manufacturing method may also include an inspection step a2) for checking the integrity of the liner 8 and / or coating of the container body 2. Figure 4 As can be seen, inspection step a2) is performed after step a1). Inspection step a2) is performed at inspection station 25.

[0165] Inspection station 25 can integrate any device suitable for inspecting and detecting any damage to the container body, particularly any damaged liner 8 and / or coating laminated or applied to the storage portion 9 of the container body 2. In particular, it can detect holes in the liner 8 inside the container body 2 or the location of delamination of the liner 8.

[0166] Inspection station 25 may include, for example, a vision system that compares the generated and marked main container with a reference object.

[0167] If damaged lining and / or coating is detected on the container body during inspection step a2), the container body may be removed from production line 20, preferably before filling beverage ingredients 10.

[0168] Then, in step b), the container body 2 is further filled with beverage ingredient 10. Step b) is performed at filling station 26, which provides the required weight of beverage ingredient 10. Regarding capsules and pouches, the beverage ingredient is preferably coffee, such as roasted and ground coffee.

[0169] In step c), the sealing element 7 is applied to the container body 2 such that the peripheral edge 6 of the container body is covered by the sealing element 7. As mentioned, the sealing element 7 may be a sealing membrane 7a for forming capsule 1a or a semi-shell 7b for forming sac 1b.

[0170] The sealing element 7 is sealed onto the peripheral edge 6 of the container body 2 in step d). The seal can be a heat seal, an ultrasonic seal, or any other known seal suitable for the container manufacturing industry.

[0171] Steps c) and d) can be performed at sealing station 28, which positions and seals the sealing element 7 onto the container body 2 such that the sealing element 7 is attached to the edge portion 6 of the container body 2.

[0172] The filling container body, the application of the sealing element, and the sealing of the sealing element and the stations (filling station 26 and sealing station 28) corresponding to steps b), c), and d) are known in the art and are presented for the purpose of gaining a general understanding of the method and production line.

[0173] The proposed manufacturing method and corresponding production line ensure that the marked container body provided to the filling station 26 is not damaged, thereby avoiding the manufacture of containers that cannot provide consumers with a fully satisfactory and enhanced sensory experience.

[0174] Although the invention has been described by way of example, it should be understood that variations and modifications may be made without departing from the scope of the invention as defined in the claims. Furthermore, if known equivalents exist for specific features, such equivalents should be incorporated as expressly mentioned in this specification.

[0175] In the claims, any reference marks placed between parentheses should not be construed as limiting the claims. The word “comprising” does not exclude the presence of other elements or steps besides those listed in the claims. Furthermore, as used herein, the terms “a” or “an” are defined as one or more. Additionally, the use of introductory phrases such as “at least one” and “one or more” in the claims should not be construed as implying that any particular claim containing such introduced claim elements is limited to the invention comprising only one such element, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an.” The same applies to the use of definite articles. Unless otherwise specified, terms such as “first” and “second” are used to arbitrarily distinguish the elements described by such terms. Therefore, these terms are not necessarily intended to indicate the time or other priority of such elements. The mere fact that certain measures are stated in mutually different claims does not imply that a combination of these measures cannot be used advantageously.

[0176] Unless otherwise expressly specified as incompatible, or if the physics or other aspects of the embodiments, examples, or claims prevent such combinations, the features of the foregoing embodiments and examples, as well as those of the following claims, can be integrated in any suitable arrangement, especially where doing so has beneficial effects. This is not limited to any particular beneficial effect, but may arise from “post-hoc” beneficial effects. That is, the combination of features is not limited to the forms described, especially not to the forms (e.g., numbering) of one or more examples, one or more embodiments, or one or more dependent claims. Furthermore, this also applies to the phrases “in one embodiment,” “according to one embodiment,” etc., which are merely stylistic forms of wording and should not be construed as limiting the following features to a single embodiment, but rather to all other instances of the same or similar wording. That is, references to “a,” “an,” or “some” embodiments may refer to any one or more and / or all of the disclosed embodiments or combinations thereof. Similarly, references to “the” embodiment may not be limited to the preceding embodiment.

[0177] The foregoing description of one or more specific embodiments is provided for illustration and description, but is not intended to be exhaustive or to limit the scope of the invention to the precise forms disclosed. Modifications and variations are possible in light of the foregoing teachings, or may be obtained from practice of various specific embodiments of this disclosure.

Claims

1. A method for manufacturing biodegradable, preferably compostable, single-use food and / or beverage containers (1) for use in beverage preparation machines on a single-use container production line (20), said manufacturing method comprising: a) Provide a cellulose-based container body (2) having an outer surface and an outwardly extending peripheral edge (6). b) Fill the container body (2) with food and / or beverage ingredients (10). c) Apply the sealing element (7) to the container body (2), d) Seal the closure element (7) to the peripheral edge (6) of the container body (2), The manufacturing method is characterized by further comprising a step of marking (a1) the outer surface of the container body (2) by printing and / or laser engraving, the marking step being performed before the step of filling the container body with the food and / or beverage ingredients (step b).

2. The manufacturing method according to claim 1, wherein, During the marking step (a1), the container body (2) is marked by printing and / or laser engraving at one or more locations on the container body (2).

3. The manufacturing method according to claim 1 or 2, wherein, The sealing element of the container (1) is a sealing film (7a) or a second container body (7b), which, when sealed with the peripheral edge (6) of the container body (2), respectively form a capsule (1a) or a sac (1b).

4. The manufacturing method according to any one of claims 1 to 3, wherein, When the container is a capsule (1a), the container body (2) includes a bottom wall (3), a cylindrical side wall (4), and an annular flange (5), the annular flange being connected to the side wall (4) on one side and to the peripheral edge (6) on the other side, wherein the container body (2) is marked on its side wall (4) and / or its bottom wall (3).

5. The manufacturing method according to any one of claims 1 to 3, wherein, When the container is a sac (2a), the container body (2) forming the closure element (7) and the second container body (7b) both include a bottom wall (3) with an outward peripheral edge (6), and one or both container bodies (2, 7b) are marked on their bottom wall (3).

6. The manufacturing method according to any one of the preceding claims, wherein, The container body (2, 7b) is provided with a liner (8) and / or coating having at least one barrier function, wherein the manufacturing method further includes an inspection step (a2) for inspecting the integrity of the liner (8) and / or coating of the container body (2), the inspection step (a2) being performed after the marking step (a1) and before the filling step (b).

7. The manufacturing method according to claim 6, wherein, The lining (8) and / or the coating have a barrier function against oxygen and / or water vapor or moisture.

8. The manufacturing method according to any one of the preceding claims, wherein, If damaged lining and / or coating is detected on the container body (2, 7b) during the inspection step, the container body (2, 7b) is removed from the production line (20).

9. The manufacturing method according to any one of the preceding claims, wherein, The container body (2) is made of pulp-based material, preferably molded pulp-based material, which is preferably made of pulp or wood pulp.

10. The manufacturing method according to any one of the preceding claims, wherein, The container body (7b) is made of a paper-based material that is preferably formable, preferably selected from a list of kraft paper, calendered paper, parchment, cardboard or a combination thereof.

11. A production line (20) for a disposable food and / or beverage container (1) according to any one of claims 1 to 10, said disposable food and / or beverage container comprising a cellulose-based container body (2, 7b) having an outer surface and an outwardly extending peripheral edge (6), said production line comprising: - Receiving station (22), the receiving station is used to receive the container body (2). - Marking station (24), the marking station is used for printing and / or laser engraving on the outer surface of the container body (2), - Filling station (26), the filling station is used to fill the container body (2) with food and / or beverage ingredients. - Sealing station (28), the sealing station is used to seal the sealing element (7) on the container body (2), The marking station is characterized in that it is positioned before the filling station (26).

12. The production line according to claim 11, wherein, The marking station (24) is a laser engraving station.

13. The production line according to claim 11 or 12, wherein, The marking station (24) marks the container body (2, 7b) at one or more locations on the outer surface of the container body (2, 7b).

14. A disposable food and / or beverage container manufactured according to any one of claims 1 to 10, the disposable food and / or beverage container comprising a cellulose-based container body preferably a pulp-based container body (2) or a paper-based container body (2), the cellulose-based container body comprising a peripheral edge (6), the container body (2) being provided with a lining (8) and / or coating having at least one barrier function, and a closure element (7) of the container body, wherein the disposable container (1) comprises at least one laser-engraved marking element or pattern forming a distinguishing mark.

15. The disposable food and / or beverage container according to claim 14, wherein the sealing element is a sealing film (7a) or a second container body (7b), the sealing film or the second container body having a barrier function against gas and / or water vapor, and forming a capsule (1a) or a pouch (1b) respectively when sealed with the peripheral edge (6) of the container body (2).

16. A coffee capsule or coffee pouch, characterized in that, The coffee capsule or coffee pouch includes a disposable food and / or beverage container as described in claim 14 or 15.

17. Use of the disposable food and / or beverage container manufactured according to any one of claims 1 to 10, as described in claims 14 to 16.

Images