EP3663213B1 - Capsule de détergent et son procédé de fabrication - Google Patents

Capsule de détergent et son procédé de fabrication

Info

Publication number
EP3663213B1
EP3663213B1 EP19208230.3A EP19208230A EP3663213B1 EP 3663213 B1 EP3663213 B1 EP 3663213B1 EP 19208230 A EP19208230 A EP 19208230A EP 3663213 B1 EP3663213 B1 EP 3663213B1
Authority
EP
European Patent Office
Prior art keywords
detergent
film
capsule
sealing seam
plastics film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19208230.3A
Other languages
German (de)
English (en)
Other versions
EP3663213A1 (fr
Inventor
Frank Meier
Friedhelm Siepmann
Matthias Sunder
Uwe Trebbe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP3663213A1 publication Critical patent/EP3663213A1/fr
Application granted granted Critical
Publication of EP3663213B1 publication Critical patent/EP3663213B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
    • B65B7/164—Securing by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents

Definitions

  • the invention relates to a detergent capsule with an outer shell based on a water-soluble plastic film, which encloses at least one inner receiving space in which detergent or detergent components or laundry care products are received.
  • detergent encompasses any washing and cleaning agent compositions suitable for use in a washing machine and/or a dishwasher.
  • Laundry care products are also included in the definition of detergents.
  • Laundry care products include, for example, fabric softeners or fragrance formulations, which may be free or nearly free of washing-active substances such as surfactants, but which fragrance or condition the laundry.
  • detergent capsules Detergents in solid, powdered, and/or liquid form for use in washing machines and dishwashers are now widely available in pre-measured portions, which, according to the invention, are referred to as detergent capsules.
  • These detergent capsules are made particularly user-friendly by a water-soluble outer shell made of plastic film, which allows a single dose of detergent to be added directly to the machine. The water-soluble outer shell dissolves in the wash water, releasing the detergent. This prevents the user from coming into contact with the detergent, which is considered very advantageous.
  • Such detergent capsules are used, for example, in the... DE 10 2014 014 767 A1 described.
  • Multi-chamber systems in which a single dose of detergent is enclosed in a single receiving chamber formed by the outer shell, other systems include, for example, those from the DE 10 2015 204 170 A1 and from the WO 02/085736 A1 Multi-chamber systems are also known, in which the outer shell has several separate receiving chambers, each filled with a portion of the detergent dose. It is possible for all receiving chambers of the multi-chamber detergent capsule to be filled with the same detergent composition, or different components of the detergent can be enclosed in different receiving chambers.
  • the WO 2014/202412 A1 shows a water-soluble multi-chamber capsule thermoformed from two layers of a water-soluble film, the capsule comprising at least two chambers with a different part of a detergent composition in each chamber.
  • Such detergent capsules of the type described above represent a growing market.
  • the amount of detergent or its individual components contained in a single capsule can vary, for example, 25 g for premium products, 22 g for mid-range products, and 20 g for particularly inexpensive products.
  • Lower dosages are used depending on market demands, washing conditions, and consumer expectations to meet the desired requirements.
  • a lower detergent dosage within a single detergent capsule is therefore desirable from both an economic and an ecological perspective.
  • a minimum size for such detergent capsules is required for reasons of ease of handling and product safety.
  • detergent capsules that are too small can be difficult for elderly people or people with limited motor skills to handle.
  • excessively small detergent capsules pose the risk of being swallowed or becoming lodged in the throat, for example, if accidentally ingested by children.
  • Safety experts therefore demand a minimum size and volume for detergent capsules to effectively counter this risk.
  • the surface of the usually water-soluble outer shell becomes sticky upon contact with liquids, which presents a further health risk if ingested and reinforces the demand for a minimum size and volume of detergent capsules to address the aforementioned dangers in case of improper use.
  • the overall dimensions of the detergent capsule can be altered, resulting in a larger surface area with a relatively flat capsule. While such flat, large-surface detergent capsules prevent the risk of accidental ingestion, they are not as readily accepted by consumers.
  • the object of the invention is to propose a detergent capsule of the type mentioned above and a method for its production, which also functions effectively with reduced dosage of the active ingredient.
  • the receiving space of the absorbed detergent or detergent components should have a spatial extent similar to that of the detergent capsules previously established on the market, while preventing excessive formation of air bubbles in the receiving space, and the production should be feasible with minimal effort, preferably using existing equipment.
  • the invention proposes the design of a detergent capsule according to the features of claim 1.
  • the solution according to the invention provides that at least one receiving chamber of the detergent capsule has at least one partially incorporated sealing seam that partially, but not completely, divides the receiving chamber.
  • This internal sealing seam is designed such that it is either non-contacting with a circumferential rim that defines the receiving chamber and preferably has a substantially constant width, or that contact with this circumferential rim does not create a closed volume in the form of an additional chamber. A single contact between the incorporated sealing seam and this circumferential rim is therefore possible. In this case, the internal sealing seam would extend from the circumferential rim into the interior of the receiving chamber.
  • detergent capsules can be produced that have a significantly reduced filling volume, but still have sufficient size and overall volume to meet the requirements for ease of handling and product safety.
  • the detergent capsules designed according to the invention have a shape that is perceived by the consumer as appealing and modern, resulting in a correspondingly good market acceptance.
  • the detergent capsule according to the invention has only a single inner receiving space, which is also referred to as a mono-pouch, this receiving space is provided according to the invention with at least one sealing seam introduced in a partial area.
  • the detergent capsule according to the invention has several, for example two to four, such discrete, i.e. separate, receiving spaces, a single, several or all recording spaces are each provided with at least one sealing seam according to the invention.
  • a preferred embodiment of a detergent capsule according to the invention comprises only a receiving chamber with a sealing seam partially incorporated.
  • the sealing seam introduced according to the invention only partially subdivides the receiving space, i.e., not completely, which would result in a subdivision into further receiving spaces, but only to the extent that the volume of the originally existing receiving space is restricted, but all areas of the receiving space still communicate with each other and jointly serve to receive the intended detergent or detergent component.
  • the sealing seam can project from the circumference of the outer casing into the receiving space and is thus partially surrounded by the receiving space, which surrounds the sealing seam in a C, S, Z, or U shape.
  • the detergent or detergent component filled into the receiving space is arranged accordingly.
  • the sealing seam is completely surrounded by the receiving space, which then extends in a ring-shaped manner around the preferably centrally placed sealing seam when viewed from above, and the detergent or detergent component filled into the receiving space is also arranged accordingly.
  • the sealing seam reduces the originally existing volume of the receiving space of the detergent capsule according to the invention, which is in itself too large for the dosed detergent or detergent component, in the area of the sealing seam to such an extent that an air bubble in the receiving space is minimized or ideally completely eliminated.
  • the outer shell of the detergent capsule according to the invention can be formed from two layers of film joined together at the edges and in the area of the at least one sealing seam.
  • the connection can be achieved, for example, by compression and/or welding.
  • the plastic film used to form the outer shell is preferably water-soluble, for example, by being based on polyvinyl alcohol (PVA).
  • PVA polyvinyl alcohol
  • the films used generally consist of polyvinyl alcohol copolymers with appropriate additives such as plasticizers, surfactants, bittering agents, or salts.
  • Such a plastic film can be manufactured, for example, using solvent casting or blown extrusion processes.
  • the plastic film can also be single-layered or multi-layered, for example, two-layered.
  • the film can be printed or decorated on the inside or outside, for example with consumer information and pictograms.
  • the printing can be multi-colored, and water-soluble or water-insoluble inks can be used.
  • the design and dimensions of the at least one sealing seam of the detergent capsule provided according to the invention are not subject to any general restrictions and can be determined by a person skilled in the art according to the objectives to be met. However, for the purposes of the invention, it is considered advantageous if the sealing seam has a width of approximately 0.5–5 mm, preferably 1 to 5 mm, more preferably 0.5 to 3 mm, or even more than 5 mm or more than 1 cm.
  • the sealing seam can be straight, for example, in the form of a dividing strip, or it can be of any freeform shape.
  • the sealing seam can be U-shaped, V-shaped, triangular, or circular.
  • this freeform shape can have dimensions of up to 25 x 25 mm, or in the case of a circular shape, a diameter of up to 25 mm, or preferably dimensions of up to 10 x 10 mm, or in the case of a circular shape, up to 10 mm.
  • Larger or elongated sealing seams are also conceivable. In any case, the sealing seam does not enclose a cavity filled with detergent, but is only surrounded by one.
  • a prior art detergent capsule W1 has a base area (length L ⁇ width B) of 2.3 cm ⁇ 3.1 cm and a height H of 2.0 cm, measured without the laterally projecting sealed rim. Due to its small width of 3.1 cm and length of 2.3 cm, both its handling is reduced and the risk of ingestion is increased.
  • Another prior art detergent capsule W2 solves this problem by increasing its length and width. However, this requires significantly more detergent or air to be filled, which disadvantageously increases manufacturing costs and storage volume.
  • the prior art detergent capsule W3 also has an increased length and width, but also a small internal volume, thus avoiding all the aforementioned disadvantages.
  • a method for manufacturing a detergent capsule according to the invention involves, in a first step, placing a layer of plastic film onto a cavity that has a rim and an internal protrusion for forming the sealing seam.
  • the plastic film is deep-drawn or vacuum-formed into the at least one cavity—preferably with heating and optionally assisted by compressed air—so that the film has an internal protrusion.
  • the protrusion preferably has the same height as the rim, measured from the bottom of the cavity.
  • detergent or detergent components are filled into the cavity lined with the plastic film up to a maximum height of the protrusion, so that the top of the protrusion, which is preferably flat, is free of detergent or detergent components.
  • the cavity is then closed by placing another film on top, and the second film is welded to the plastic film at the rim and on the protrusion.
  • the sealing seam is formed by the welding of the plastic film and the second film on the protrusion.
  • Another method for manufacturing the detergent capsule according to the invention involves, in a first step, placing a layer of plastic film into at least one cavity, which has no internal protrusion for forming the sealing seam.
  • the plastic film is deep-drawn or vacuum-formed into the at least one cavity – preferably with heating and optionally assisted by compressed air – so that the film assumes the contour of the cavity.
  • detergent or detergent components are filled into the cavity lined with the plastic film.
  • the cavity is then closed by placing another film on top, and the edge of this additional film is welded to the plastic film. Before or after this welding, the detergent or detergent components are displaced between the two films by pressing them together, and the sealing seam is formed in this area by welding.
  • the bonding of the layers of the plastic film to form the edge areas and/or the sealing seam of the detergent capsule according to the invention can be achieved, for example, by the action of water and pressure, or by the action of water, pressure and heating below a temperature of approximately 95 °C, or by the exclusive action of temperatures above 90 °C.
  • the resulting flange-like edge areas can be removed, for example, by subsequent laser cutting, die-cutting, or slicing.
  • the figures show a globally designated detergent capsule with reference symbol 1, which has an outer shell 10 based on a water-soluble plastic film, for example made of polyvinyl alcohol.
  • the outer shell 10 encloses an inner receiving space 11, which is closed on all sides and in which a liquid or gel-like detergent is contained in a dosage sufficient for a single washing process, for example 20 g.
  • the outer shell 10 made of water-soluble plastic film dissolves upon contact with the wash water and releases the detergent held in the receiving chamber 11 in the desired dosage.
  • the dimensions of the detergent capsule 1 are initially chosen to be too large in relation to the dosage of detergent filled into the receiving chamber 11.
  • the volume of the inner receiving chamber 11 is reduced by a sealing seam 12, which is partially incorporated into the receiving chamber 11 and completely surrounded by the receiving chamber 11 and the detergent contained therein, to such an extent that no air bubble is present in the receiving chamber 11 besides the detergent.
  • the outer shell 10 is formed by joining a lower and an upper layer of the plastic film together at their edges, enclosing the metered detergent, for example by thermal welding at temperatures above 95 °C. This creates a flange-like circumferential edge area 100, which can optionally be removed by punching or laser cutting.
  • the two layers of the plastic film in the area of the inserted sealing seam 12 are brought directly onto the system and connected to each other, for example thermally welded, so that the detergent filled in the receiving chamber 11 is displaced in the area of the sealing seam 12.
  • the two layers of the plastic film can also be joined together by the action of water, pressure and temperatures below 95 °C or by the action of water and pressure.
  • the size, dimensions, and design of the sealing seam 12 can be freely chosen by a person skilled in the art based on the circumstances, provided that the inclusion of the sealing seam 12 does not divide the receiving space 11 into two completely separate compartments. For this to be the case, at least one free end of the sealing seam 12 must be partially surrounded by the receiving space 11 or, as in the illustrated embodiment, completely surrounded by the receiving space 11.
  • the conversion of existing plants for the production of detergent capsules may only require the installation of at least one raised section in the mold cavities to form the sealing seam 12.
  • the detergent capsule 1 described above can therefore, for example, hold a dosage of 20 g of detergent in the receiving chamber 11, but in terms of external dimensions correspond to a detergent capsule 1 for holding 24 g of detergent, whereby the introduction of the sealing seam 12 largely avoids an otherwise unavoidable air bubble in the receiving chamber 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Detergent Compositions (AREA)

Claims (9)

  1. Capsule à agent de lavage (1) comportant une enveloppe extérieure (10) à base d'un film en matière plastique hydrosoluble entourant au moins un espace de réception (11) intérieur dans lequel sont reçus un agent de lavage ou des composants d'agent de lavage, caractérisée en ce qu'au moins un espace de réception (11) présente au moins un cordon de scellage (12) introduit dans certaines zones, lequel cordon de scellage divise partiellement, mais pas complètement, l'espace de réception (11), dans laquelle le cordon de scellage (12) pénètre dans l'espace de réception (11) à partir de la circonférence de l'enveloppe extérieure (10) et est partiellement entouré de l'espace de réception (11).
  2. Capsule à agent de lavage (1) selon la revendication 1,
    caractérisée en ce que l'enveloppe extérieure (10) est formée de deux couches de film reliées entre elles côté bord, ainsi que dans la zone de l'au moins un cordon de scellage (12).
  3. Capsule à agent de lavage (1) selon l'une des revendications 1 à 2,
    caractérisée en ce que le film en matière plastique est formé à base d'alcool polyvinylique ou de copolymères d'alcool polyvinylique.
  4. Capsule à agent de lavage (1) selon l'une des revendications 1 à 3, caractérisée en ce que le film en matière plastique est réalisé en une ou plusieurs couches.
  5. Capsule à agent de lavage (1) selon l'une des revendications 1 à 4,
    caractérisée en ce qu'elle comprend un à quatre espaces de réception discrets.
  6. Capsule à agent de lavage (1) selon l'une des revendications 1 à 5,
    caractérisée en ce que le cordon de scellage (12) présente une largeur allant de 0,5 à 5 mm.
  7. Procédé de fabrication d'une capsule à agent de lavage (1) selon l'une des revendications 1 à 6, comprenant les étapes selon lesquelles
    i. une couche d'un film en matière plastique hydrosoluble est amenée sur une cavité présentant un bord et une élévation intérieure pour la formation du cordon de scellage,
    ii. le film en matière plastique est embouti dans l'au moins une cavité,
    iii. la cavité revêtue du film en matière plastique est remplie de l'agent de lavage ou des composants d'agent de lavage au maximum jusqu'à la hauteur de l'élévation,
    iv. la cavité est fermée par la mise en place d'un autre film,
    v. l'autre film est soudé, côté bord et sur l'élévation, au film en matière plastique.
  8. Procédé de fabrication d'une capsule à agent de lavage (1) selon l'une des revendications 1 à 6, comprenant les étapes selon lesquelles
    i. une couche d'un film en matière plastique hydrosoluble est amenée sur une cavité présentant un bord,
    ii. le film en matière plastique est embouti dans l'au moins une cavité,
    iii. la cavité revêtue du film en matière plastique est remplie de l'agent de lavage ou des composants d'agent de lavage,
    iv. la cavité est fermée par la mise en place d'un autre film,
    v. l'autre film est soudé, côté bord, au film en matière plastique,
    vi. avant ou après le soudage de l'autre film au film en matière plastique, le cordon de scellage est formé et soudé par déplacement d'agent de lavage.
  9. Procédé selon la revendication 7 ou la revendication 8,
    caractérisé en ce que le film en matière plastique et l'autre film sont soudés l'un à l'autre sous l'action de l'eau et de la pression ou sous l'action de l'eau, de la pression et d'un chauffage inférieur à 95 °C ou sous l'action de températures supérieures à 95 °C.
EP19208230.3A 2018-12-04 2019-11-11 Capsule de détergent et son procédé de fabrication Active EP3663213B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018220929.4A DE102018220929A1 (de) 2018-12-04 2018-12-04 Waschmittelkapsel und Verfahren zu deren Herstellung

Publications (2)

Publication Number Publication Date
EP3663213A1 EP3663213A1 (fr) 2020-06-10
EP3663213B1 true EP3663213B1 (fr) 2025-12-31

Family

ID=68531395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19208230.3A Active EP3663213B1 (fr) 2018-12-04 2019-11-11 Capsule de détergent et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP3663213B1 (fr)
DE (1) DE102018220929A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1088343S1 (en) 2022-05-11 2025-08-12 People Against Dirty Holdings Limited Packet
CN116966101A (zh) * 2023-08-14 2023-10-31 上海泰谦自动化设备有限公司 一种化妆品胶囊

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615565A (en) * 1947-01-09 1952-10-28 Bower Suture package and method
US3521805A (en) * 1968-09-27 1970-07-28 Anderson Bros Mfg Co Dispensing packet
JPH06127553A (ja) * 1992-10-16 1994-05-10 Saraya Kk 液体収納用袋
JP3995464B2 (ja) * 2001-01-16 2007-10-24 株式会社ソルベックス 易開封性の使い捨て容器
GB2374580B (en) 2001-04-20 2003-07-16 Reckitt Benckiser Water-soluble containers
US8622206B2 (en) * 2006-09-08 2014-01-07 The Procter & Gamble Company Peel-to-open packages
US8535936B2 (en) * 2008-06-30 2013-09-17 Twistaferm Vessels for mixing bioprocessing materials
US10059912B2 (en) * 2013-06-19 2018-08-28 Conopco, Inc. Multi-compartment water-soluble capsules
DE102014014767A1 (de) 2014-10-10 2016-04-14 Henkel Ag & Co. Kgaa Folienverpackte Mittelportion
DE102015204170A1 (de) 2015-03-09 2016-09-15 Henkel Ag & Co. Kgaa Portioniertes Wasch- oder Reinigungsmittel mit Mikrokapseln in der Pulverkammer
HUE057785T2 (hu) * 2016-11-10 2022-06-28 Unilever Ip Holdings B V Többrekeszes vízoldható kapszulák

Also Published As

Publication number Publication date
EP3663213A1 (fr) 2020-06-10
DE102018220929A1 (de) 2020-06-04

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