EP3025969B1 - Water soluble pouches - Google Patents

Water soluble pouches Download PDF

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Publication number
EP3025969B1
EP3025969B1 EP15199428.2A EP15199428A EP3025969B1 EP 3025969 B1 EP3025969 B1 EP 3025969B1 EP 15199428 A EP15199428 A EP 15199428A EP 3025969 B1 EP3025969 B1 EP 3025969B1
Authority
EP
European Patent Office
Prior art keywords
pouch
compartment
web
filled
base web
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.)
Revoked
Application number
EP15199428.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3025969A1 (en
Inventor
James Fowler
Boris Makutonin
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.)
Rideau Machinery Inc
Original Assignee
Rideau Machinery Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=50680084&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3025969(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB201307160A external-priority patent/GB2513199B/en
Priority claimed from GB1320204.9A external-priority patent/GB2520306B/en
Application filed by Rideau Machinery Inc filed Critical Rideau Machinery Inc
Priority to PL15199428T priority Critical patent/PL3025969T3/pl
Publication of EP3025969A1 publication Critical patent/EP3025969A1/en
Application granted granted Critical
Publication of EP3025969B1 publication Critical patent/EP3025969B1/en
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • 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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/02—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved with means for heating the material prior to forming
    • 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
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • 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
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/042—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for fluent material
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3261—Flexible containers having several compartments
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/045—Multi-compartment

Definitions

  • This invention concerns improvements in or relating to water-soluble pouches. More specifically, the invention concerns apparatus and methods for producing multi-compartment water-soluble pouches from two or more soluble substrates on continuous motion rotatable forming machines. The invention also concerns multi-compartment water-soluble pouches made from two or more soluble substrates, and in particular, but not exclusively, pouches made using the apparatus and methods of the present invention.
  • WO2011/061628 and WO2013/190517 continuous motion rotatable formers and pouches made thereon have been described.
  • a rotatable former is provided with cavities into which a base web is formed to create open pockets in the base web. Once formed, the base web is tightly held by vacuum within the cavity throughout the process of filling the pockets, sealing the pockets with a top or lidding web to form pouches in the combined webs and separating the pouches from the combined web by transverse and web direction knives.
  • WO2013/190517 apparatus for making multi-compartment pouches from four water-soluble substrates via two pouches was described wherein each pouch was made from two water-soluble substrates on separate rotatable formers similar to the process described in WO2011/061628 and the web of pouches on one former then joined to the web of pouches on the other former produce combined pouches before separating the combined pouches from the combined webs by transverse and web direction knives.
  • JP-61-73642 discloses a pouch made from a single film wherein the film is folded in half and sealed on three or four sides.
  • the pouch has a single compartment and is filled from the top side, opposite to the fold line.
  • US 2003 / 021839 A1 discloses a method of manufacturing a two-compartment capsule, each compartment holding different material.
  • the present invention provides a multi-compartment pouch as defined in claim 1.
  • the pouch comprises at least two compartments and wherein each compartment is formed between the same two substrates.
  • the compartments may contain different products selected for example from liquids, gels, powders and granules. At least one compartment may be empty, i.e.not filled.
  • the pouch comprises three or more compartments.
  • compartments are disposed within the pouch such that they provide resistance to planar distortion.
  • compartments are disposed within the pouch such that any bending axis arbitrarily laid across the pouch cuts through the body of at least one compartment.
  • the pouch contains a perimetric compartment.
  • the pouch contains a divided perimetric compartment.
  • At least one compartment is filled with a flowable composition, for example a liquid or gel.
  • At least one compartment is filled with a solid composition, for example a powder or granules.
  • At least one compartment is filled with more than one composition wherein the compositions are mutually compatible and not antagonistic to each other.
  • the top lidding web has a thickness of between 50% and 75% of that of the base web.
  • each compartment is filled to at least 90% of the available volume.
  • compartments are formed sequentially in the base web and each compartment is filled before a further compartment is formed and filled until all compartments have been filled whereupon the compartments are closed by sealing with a top or lidding web.
  • the pouch is sealed to a second closed multi-compartment pouch such that the combined pouch comprises four water-soluble substrates.
  • the pouch is sealed to a second open multi-compartment pouch such that the combined pouch comprises three water-soluble substrates.
  • At least two compartments are filled with a greater weight of a powder or granular composition than the weight of any compartment filled with a liquid or gel.
  • the present invention provides a method of making a multi-compartment pouch as defined in claims 11.
  • Optional featutres are the subject of claims 12 to 14.
  • each pocket of the multi-compartment pouch is filled with at least one product.
  • the former is configured so that at least one open pocket of a pouch is formed and filled before at least one other open pocket of the pouch is formed and filled, and only once all open pockets have been filled is the pouch closed by sealing with a lidding web.
  • a second pouch is affixed to the multi-compartment water-soluble pouch to form a combined pouch.
  • each pouch comprises two water soluble substrates such that the combined pouch comprises four water-soluble substrates.
  • the second pouch may be a multi-compartment pouch.
  • the top or lidding web of the multi-compartment water-soluble pouch is provided by the second pouch such that the combined pouches comprises three water-soluble substrates.
  • the second pouch may be a multi-compartment pouch.
  • FIG. 1 to 17 Various multi-compartment pouches 1 are shown in Figures 1 to 17 and summarised in the following Table :
  • Figure Number Configuration in Plan View Number of Compartments 1 Circular or Elliptical with a complete perimetric compartment 2
  • Circular or Elliptical with a divided perimetric compartment 3 3 Triangular with rounded corners and a complete perimetric compartment 2 4
  • Triangular with rounded corners and a divided perimetric compartment 3 5 Square or Rectangular with a complete perimetric compartment 2 6
  • Horseshoe 2 Horseshoe with a divided external compartment 3
  • Central Tee compartment 3 10 Central H compartment 3 11 Rectangular with a divided perimetric compartment 3 12 Rectangular with a divided perimetric compartment 3 13 L-shaped external compartment 2 14 Wedge compartments 2 15 Wedge compartments with a central compartment 3 16 Shamrock compartments 4 17
  • Clover Leaf compartments 3 Central H compartment 3 11
  • Each pouch 1 is formed from two water soluble substrates 2, 3 which may be referred to as a base web 2 and a top or lidding web 3. Any suitable water soluble substrates may be employed.
  • Pouches 1 having two compartments 1a, 1b are shown in Figures 1 , 3 , 5 , 7 , 13 , 14 .
  • Pouches 1 having three compartments 1a,1b,1c are shown in Figures 2 , 4 , 8 , 9 , 10 , 11 , 12 , 15 , 17 .
  • Pouches having four compartments 1,1b,1c,1d are shown in Figures 6 , 16 .
  • Each pouch 1 is symmertical about a weld line 4 between the base web 2 and top lidding web 3.
  • Each compartment 1a,1b,1c,1d is fomed between the base web 2 and the top or lidding web 3.
  • the footprint 5 of the pouches 1 and the number, shape and arrangement of the compartments 1a,1b,1c,1d is exemplary only and other configurations that may be employed will be apparent to those skilled in the art.
  • the term "footprint” is defined as the plan view of the pouch 1 as seen from above the top or lidding web 3 of the pouch 1.
  • Water-soluble substrates are often by the very nature of the materials, lacking in rigidity. As a result, when forming a water soluble pouch from two water soluble substrates, the resulting pouch will itself have a tendency to lack rigidity or planar strength which will give an unattractive floppy aspect to the pouch when handled by the consumer. Such a lack of rigidity or planar strength is referred to herein as planar distortion. Whilst the majority of water-soluble substrates capable of being formed, for example thermoformed or vacuum formed, are at the present time, made substantially from polyvinyl alcohol resins, other water-soluble substrates capable of being formed may be used to practise the present invention.
  • Planar distortion of multi-compartment pouches may be overcome or significantly reduced in this invention by one or more of the following factors:
  • Planar distortion may be reduced by employing a perimetric compartment as one of the compartments.
  • perimetric in this context describes a compartment which is situated around the perimeter of the pouch.
  • the perimetric compartment may be square or rectangular with rounded corners, allowing maximum use of the area of the footprint, and hence providing maximum possible compartment fill volumes.
  • such a square or rectangular perimetric compartment may follow the cut edges of the pouch with its outer limit set back from the cut edges of the pouch, for example at least 1.5mm from the cut edges of the pouch.
  • a square or rectangular perimetric compartment may be rejected for marketing or other reasons in favour of other shapes, such as triangular with rounded corners, or pentagonal with rounded corners, or circular or elliptical although these shapes are by no means limiting. It will be apparent that departing from a square or rectangular perimetric compartment can reduce the combined fill volume of the compartments within the pouch and leave a larger flange around the perimetric or semi-perimetric compartment.
  • the perimetric compartment may be divided into two or more separate compartments in order to increase the number of compartments within a pouch of a given footprint.
  • the invention overcomes this loss of planar stability by compartmental design.
  • the pouch may, unless corrective design features are introduced to prevent it, flex about a line joining the seal areas between the semi-perimetric compartments.
  • a multi-compartment pouch which is able to flex will be less appealing to the consumer than one which has planar stability.
  • One or more of the compartments within the multi-compartment pouch may be left unfilled in order to provide additional resistance to planar distortion of the pouch.
  • Planar distortion may be reduced by filling each compartment of the pouch to at least 80%, preferably at least 90%, of its available volume. Such a percentage fill of the available volume of each compartment has been found to contribute to planar stability of the pouch.
  • the thickness of the top lidding web3 may be selected to be between 30% and 90%, preferably between 50% and 75%, of that of the base web 2.
  • FIG. 18 This reconfiguration of pouches 1 ejected from cavities 6 of a rotable former 7 configured with a cylndrical surface is shown in Figure 18 .
  • the former may 7 may be circular as shown in Figure 18 although this is not essential and other configurations of former may be employed, for example a rotable former configured with a flat horizontal surface.
  • Examples of cylindrical and horizontal formers that may be employed are shown and described in WO2011/061628 to which the reader is directed for further details.
  • planar distortion Whilst the reduction in planar distortion provided by any single factor may not be sufficient to assure planar rigidity of the pouch, when all three factors are combined, there is an unexpected increase in planar rigidity which in turn provides a marketing advantage to the multi-compartment pouch of the present invention.
  • FIG. 19 and 20 examples of filling multi-compartment pouches 1 according to the present invention are illustrated although these examples are by no means limiting.
  • the number of pouches 1 formed, filled and sealed across the web of a machine is known as the number of tracks or lanes.
  • FIG 19 filling of pouches 1 with two compartments 1a,1b similar to the pouch shown in Figure 14 is illustrated.
  • the rotatable former 7 of the pouch making machine may be configured as shown and described in WO2011/061628 with a cylindrical surface 7a or alternatively with a flat horizontal surface.
  • the compartments 1a,1b may be filled by heads 8a,8b.
  • the heads 8a,8b may be point fillers.
  • the heads 8a,8b may be configured to add a liquid, gel, powder or granules, for example nozzle injectors for liquids or gels or augur fillers for powders or granules. Heads 8a,8b may be connected to a feed for the same or different materials.
  • the heads 8a, 8b may be arranged with a space offset in the direction of movement of the surface 7a and fire simultaneously (option A) or with no space offset and fire at slightly different set points (option B).
  • a similar arangmeent may be provided for each track or lane across the web of the machine. Heads in different tracks or lanes may be connected to the same or different supplies of material. This method is equally applicable where the multi-compartment pouch comprises more than two compartments. Generally, a filling head is provided for each compartment.
  • FIG 20 filling of pouches 1 with three compartments 1a,1b,1c similar to the pouch shown in Figure 15 is illustrated.
  • the rotatable former 7 of the pouch making machine may be configured as shown and described in WO2011/061628 with a cylindrical surface 7a or alternatively with a flat horizontal surface.
  • the compartments 1a,1b,1c may be filled by heads 8a,8b,8c.
  • the heads 8a,8b,8c may be point fillers.
  • the heads 8a,8b,8c may be configured to add a liquid or gel or a powder or granules, for example nozzle injectors for liquids and gels or augur fillers for powders and granules.
  • the heads 8a,8b are configured to add a liquid or gel and head 8c is configured to add a powder or granules.
  • Heads 8a,8b may be connected to a feed for the same or different liquids or gels.
  • a similar arrangement may be provided for each track or lane across the web of the machine. Heads in different tracks or lanes may be connected to the same or different supplies of material.
  • Other arrangements of heads 8a,8b,8c for delivering any combination of liquids, gels, powders and granules are envisaged. This method is equally applicable where the multi-compartment pouch comprises two or more compartments. Generally a filling head is provided for each compartment.
  • the heads may be arranged to create space for a plurality of heads within the confined space available.
  • the heads may be inclined to each other.
  • a head 8a for a liquid or gel and a head 8b for a powder or granules may be inclined to each other.
  • a head 8b for a powder or granules may be provided with a chute 9.
  • the liquid or gel filling head 8a and chute 9 may be inclined to each other.
  • the heads 8a, 8b may be arranged to follow the cavity 6 of the former 7 as it advances so that the time available for completion of the filling operation is thereby increased and the product being filled is spread more evenly along the compartment in the base web.
  • the machine may be capable of providing an output of approximately 60 pouches per minute for each track or lane of the machine.
  • the filling equipment is typically a multi-head auger filler and in the case of liquid products, the filling equipment is typically cylinder operated nozzle injectors with a cut off such that no drips arrive on the base web surrounding the cavities. Such contamination of the base web can subsequently inhibit good sealing of the base web with the top or lidding web. Hitherto, the filling operation has not allowed such filling speeds across so many tracks, preventing the compartments of a multi-compartment pouch from being filled within such a short time interval.
  • Embodiments of pouch forming machines are shown in Figures 22 to 26 wherein like reference numerals are used to indicate the same or similar parts such that the operation of the same or similar parts will be understood from a description of any emebodiment without being repeated for other .embodiments.
  • FIG. 22 An embodiment of a pouch forming machine 20 is shown in Figure 22 comprising a horizontal rotatable former 21.
  • the term horizontal rotatable former describes a machine wherein part of the former 21 comprises a horizontal surface or section 21 a.
  • the former 21 may comprise an endless belt (only part of the former is shown in Figure 22 ).
  • the machine is configured to form multi-compartment pouches from two water soluble substrates by sequential forming and filling each compartment of the pouch.
  • the former is provided with pouch forming cavities 23 configured to form pouches with three compartments but it will be understood this is not limiting and the cavities 23 can be configured to form pouches having two or more compartments.
  • a base web 24 is unwound from an unwinding station 25 and a first open pocket or container 26 is formed in the base web at 27 and filled at 28.
  • a second open pocket or container 29 is formed in the base web at 30 and filled at 31.
  • a third open pocket or container 32 is formed in the base web at 33 and filled at 34.
  • a lidding web 35 is unwound from an unwinding station 36 and affixed to the base web at 37 thereby sealing and closing all the open pockets or containers 26, 29, 32 in the base web to form multi-compartment pouches 38 within the cavities 23.
  • the combined base web and lidding web is then moved to a cutting station 39 where the pouches 38 are separated from the combined web.
  • the top or lidding web 35 is affixed to the base web 24 by solvent welding by wetting the lidding web 35 at 40. Other methods of affixing the top or lidding web may be employed such as heat sealing.
  • multi-compartment pouches having at least two compartments may be produced employing the machine 20 by appropriate design of the pouch forming cavities.
  • the machine 20 may produce any of the pouches shown in Figures 1 to 17 although this is not limiting on the scope of the invention.
  • Each compartment may be sequentially formed and filled with different compositions. Alternatively, where more than one compartment contains the same composition, these compartment may be formed and filled simultaneously with at least one other compartment being formed and filled sequentially.
  • FIGS 23 and 24 Further embodiments of a pouch forming machine 20' are shown in Figures 23 and 24 comprising a combination of two rotatable formers wherein one rotatable former is a horizontal rotatable former 21 similar to Figure 22 and the other rotatable former is a cylindrical rotatable former 41.
  • the term cylindrical rotatable former describes a machine where the former 41 comprises a circular surface or section 41 a.
  • the cylindrical former 41 is positioned above the horizontal section 21a of the horizontal former 21.
  • the former 41 is provided with pouch forming cavities 42 and may comprise a drum.
  • multi-compartment water pouches 38 comprising a water-soluble base web 24 and a water-soluble top or lidding web 35 are formed on the horizontal rotatable former 21 as described previously and water-soluble pouches 38' comprising a water soluble base web 24' and a water soluble top or lidding web 35' are formed on the cylindrical former 41.
  • the pouches 38,38' are brought together in register and combined by joining the top or lidding webs 35,35'to each other at 44.
  • the resulting combined pouch is formed from four water soluble webs or substrates.
  • the pouch 38' comprises a single compartment filled at 43.
  • the pouch 38' may comprise more than one compartment.
  • the pouches 38,38' may comprise any of the pouches shown in Figures 1 to 17 although this is not limiting on the scope of the invention.
  • the pouch 38 may be a single compartment and the pouch 38' may be multi-compartment.
  • the top or lidding web 35 is omitted and the open pouches or containers formed by the base web 24 on the former 21 are closed by the top or lidding web 35' of the pouches 38' on the former 41.
  • the resulting pouch is formed from three water soluble webs or substrates
  • FIGS 25 and 26 comprising a combination of two rotatable formers wherein both rotatable formers are horizontal rotatable formers 21,21" similar to Figure 22 with a horizontal lower section 21b" of the former 21" positioned above the horizontal upper section 21a of the former 21.
  • multi-compartment pouches 38 comprising a water-soluble base web 24 and a water-soluble top or lidding web 35 are formed on the horizontal rotatable former 21 as described previously and water-soluble pouches 38" comprising a water soluble base web 24" and a water soluble top or lidding web 35" are formed on the horizontal former 21".
  • the pouches 38,38" are brought together in register and combined by joining the top or lidding webs 35,35" to each other at 44.
  • the resulting combined pouch is formed from four water soluble webs or substrates.
  • An additional cutting station 39" may be provided in at least the transverse direction so that the closed pouches 38" produced on the upper horizontal former 21", despite the vacuum holding them within the cavities 23"of the former 21", are not dislodged as the former 21" passes over the roller at 45..
  • the pouch 38" is a multi-compartment pouch formed in similar manner to the pouch 38.
  • the pouch 38" may comprise a single compartment or any other design with two or more compartments.
  • the pouches 38,38" may comprise any of the pouches shown in Figures 1 to 17 although this is not limiting on the scope of the invention.
  • the top or lidding web 35 is omitted and the open pouches or containers formed by the base web 24 on the former 21 are closed by the top or lidding web 35" of the pouches 38" on the former 21".
  • the resulting pouch is formed from three water soluble webs or substrates
  • a multi-compartment water soluble pouch 60 with three compartments 60a,60b,60c is shown in Figure 27 .
  • the method of sequentially forming and filling the pouch 60 is illustrated in Figures 28 and 29 .
  • a former 61 has a cavity 62 with three recessed areas 62a,62b,62c corresponding to the compartments 60a.60b,60c of the pouch 60.
  • a base web 63 is formed into area 62a to form an open pocket or container for compartment 60a.
  • Compartment 60a is then filled for example with a powder or granules by a belt feeder 64.
  • the feeder 64 may have a scraper blade 66 to prevent overfilling of the compartment 60a.
  • the base web 63 is formed into area 62b to form an open pocket or container for compartment 60b.
  • Compartment 60b is then filled for example with a powder or granules by a belt feeder 64.
  • Compartment 60c is then filled for example with a liquid or gel by a nozzle feeder 65.
  • the sequentially formed and filled compartments 60a,60b,60c can then be closed and sealed by a top or lidding web (not shown) by any of the methods and machines described previously.
  • multi-compartment pouches containing overlapping compartments can be made employing the sequential forming and filling method described herein which could not be made by conventional methods employing contemporaneous forming of the compartments followed by filling due to filling constraints.
  • the above method may be employed for any design of multi-compartment pouch.
  • Sequential forming of the base web 63 may be effected by different methods.
  • One method involves applying a vacuum to each recessed area 62a,62b,62c of the cavity 62 in turn.
  • the vacuum is maintained in each area in which the base web 63 is formed and filled until the pouch 60 is ejected from the former 61.
  • Sequential forming and filling offers the advantage of greater space, longer filling times and therefore ease of filling for powders or granules which do not flow freely from the filling heads.
  • a vacuum shoe arrangement for sequential forming of base web 63 comprising three vacuum slots 66a,66b,66c wherein each slot 66a,66b,66c controls the vacuum start and stop to each of the three recessed areas 62a,62b,62c respectively,.
  • the slots 66a,66b,66c are of different lengths and are configured so that stop point is the same for all recessed areas 62a,62b,62c in order to release the pouch from the cavity 62.
  • the first slot 66a has the earliest start point, then the second slot 66b and lastly the third slot 66c.
  • the vacuum is applied first to the area 62a through vacuum slot 66a so that the base web 63 can be drawn into the area 62a only to form an open pocket or container corresponding to compartment 60a which can then be filled. Whilst the vacuum to the area 62a is maintained, the vacuum is next applied to the area 62b through vacuum slot 66b so that the base web 63 can be drawn into the second area 62b to form an open pocket or container corresponding to compartment 60b which can then be filled. Whilst the vacuum to the areas 62a,62b is maintained, the vacuum is applied to the area 62c through slot 66c so that the base web 63 can be drawn into the area 62c to form an open pocket or container corresponding to compartment 60c which can then be filled...
  • a lidding web (not shown) can be affixed to the base web 63 around the open pockets or containers to close and seal the compartments to form the multi-compartment pouch 60.
  • the pouch 60 can then be separated from the combined web, the vacuum supply to all three recessed areas released and the pouch ejected from the cavity 62 in the rotatable former either by falling under gravity or by ejection with compressed air or a combination of both on to a suitable conveyor system.
  • a vacuum valve arrangement for sequential forming of base web 63 comprising three vacuum valves 67a,67b,67c wherein each valve 67a,67,67c controls the vacuum start and stop to each of the three recessed areas 62a,62b,62c respectively.
  • Each valve 67a,67b,67c is mechanically controlled by an actuator 68a,68b,69c co-operable with a straight cam 69a,69b,69c arranged underneath the valve.
  • the cams 69a,69b,69c are of different lengths and are configured so that the stop point is the same for all recessed areas 62a,62b,62c in order to release the pouch from the cavity 62.
  • the first cam 69a is the longest, then the second cam 69b and the third cam 69c is the shortest.
  • vacuum valve 67a is actuated first to apply vacuum to the area 62a so that the base web 63 can be drawn into the area 62a only to form an open pocket or container corresponding to compartment 60a which can then be filled. Whilst the vacuum to the area 62a is maintained, the vacuum valve 67b is next actuated to apply vacuum to the area 62b so that the base web 63 can be drawn into the second area 62b to form an open pocket or container corresponding to compartment 60b which can then be filled.
  • the vacuum valve 67c is actuated to apply vacuum to the area 62c so that the base web 63 can be drawn into the area 62c to form an open pocket or container corresponding to compartment 60c which can then be filled...
  • a lidding web (not shown) can be affixed to the base web 63 around the open pockets or containers to close and seal the compartments to form the multi-compartment pouch 60.
  • the pouch 60 can then be separated from the combined web, the vacuum supply to all three recessed areas released and the pouch ejected from the cavity 62 in the rotatable former either by falling under gravity or by ejection with compressed air or a combination of both on to a suitable conveyor system.
  • the cams 69a,69b,69c can be configured to be adjustable to alter the vacuum start and/or stop points to change the valve timing.
  • the cams 69a,69b,69c may be made of two pieces (dove tailed, for example) which allows for length adjustment. Such adjustment may be effected remotely. This may allow easier adjustment of the valve timing compared to the arrangement of Figure 30 where the vacuum shoe has to be removed and either replaced by a vacuum shoe with different length slots or the slots cut to change the length and the shoe refitted.
  • a further advantage of the arrangement of Figure 31 is that there is only one vacuum line going to the valve block for the valves 67a,67b,67c for each of the recessed areas 62a,62b,62c.
  • individual lines from the vacuum shoe to each recessed area 62a,62b,62c are required.
  • the cavities 62 in the former may be heated by internal and/or external heaters to assist forming the base web 63 into the cavities.
  • the base web 63 may pass over a heated roller prior to being drawn into the first recessed area 62a.
  • the base web 63 may be heated prior to be drawn into the second and/or third recessed areas to maintain flexibility of the web and assist forming into the recessed areas. Such heating may be effected from above for example by means of externally mounted hot air jets or externally mounted infra-red heaters.
  • Figure 32 illustrates an example, which is by no means limiting, of a two compartment pouch 70 that can be produced on a machine similar to Figure 22 wherein a first open pocket or container 71 is formed in a base web and in this example filled using a belt feeder 72 or similar type area filler and only once the first container 71 has been filled, is a second open pocket or container 73 sequentially formed in the base web and in this example, filled using a point feeder 74.
  • the feeders 72,74 may be replaced by any other feeders to suit the product added to the containers 71,73.
  • Figure 33 illustrates an example, which is by no means limiting, of a three compartment pouch 80 that can be produced on a machine similar to Figure 22 wherein a first open pocket or container 81 is formed in a base web and in this example filled using a belt feeder 82 or similar type area filler and only once the first container 81 has been filled is a second open pocket or container 83 sequentially formed in the base web and in this example filled using a belt feeder 84 or similar type area filler and only once the second container 83 has been filled, is a third container 85 sequentially formed in the base web and in this example filled using a point feeder 86.
  • the feeders 82,84,86 may be replaced by any other feeders to suit the product added to the containers 81,83,85.
  • containers 81 and 83 may be formed and filled simultaneously and container 85 formed and filled sequentially.
  • Figure 34 illustrates an example, which is by no means limiting, of a four compartment pouch 90 that can be produced on a machine similar to Figure 22 wherein a first container 91 is formed in a base web and in this example filled using a belt feeder 92 or similar type area filler and only once the first container 91 has been filled, is a second container 93 sequentially formed in the base web and in this example filled using a belt feeder 94 or similar type area filler and only once the second container 93 has been filled are a third container 95 and a fourth container 96 formed simultaneously in the base web and in this example, filled simultaneously using point feeders 97 and 98 respectively.
  • the feeders 92,94,97,98 may be replaced by any other feeders to suit the product added to the containers 91,93,95,96.
  • containers 91, 93, 95 and 96 may each be formed and filled sequentially.
  • containers 91 and 93 may be formed and filled simultaneously and containers 95 and 96 may be formed and filled sequentially.
  • Other combinations of simultaneous and sequential forming and filling of the containers will be apparent to those skilled in the art.
  • Figure 35 illustrates examples, which are by no means limiting, of pouch designs which may be produced by means of the present invention.
  • Figure 35(i) illustrates a two compartment pouch 100 where typically, although the nature of each composition as described hereafter is by no means limiting, open pocket or container 101 is formed first in a base web and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, and container 102 is formed second and filled with a liquid or gel composition filled by means of a point feeder. The pouch 100 is then closed by means of a lidding web.
  • Figures 35(ii), 35(v), and 35(ix) illustrate different three compartment pouches 110 where typically, although the nature of each composition as described hereafter is by no means limiting, an open pocket or container 111 is formed first in a base web and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, open pocket or container 112 is formed second and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, and container 113 is formed third and filled with a liquid or gel composition filled by means of a point feeder. The pouch 110 is then closed by means of a lidding web.
  • Figures 35(iii), 35(iv) , 36(vi) and 35(vii) illustrate different four compartment pouches 120 where typically, although the nature of each composition as hereafter described is by no means limiting, an open pocket or container 121 is formed first in a base web and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, container 122 is formed second and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, containers 123 and 124 are formed and filled either sequentially or contemporaneously with the same or different liquid or gel composition(s) filled by means of point feeders. The pouch 120 is then closed by means of a lidding web.
  • Figure 35(viii) illustrates a six compartment pouch 130 where typically, although the nature of each composition as hereafter described is by no means limiting, container 131 is formed first in a base web and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, container 132 is formed second and filled with a powder or granular composition by means of a belt feeder or similar type area feeder, and containers 133, 134, 135, and 136 are formed and filled either sequentially or contemporaneously and filled with the same or different liquid or gel composition(s) by means of point feeders. The pouch is then closed by means of a lidding web.
  • the method of fill may be as follows:
  • references to the orientation of the elements in this description are merely used to identify the various elements as they are oriented in the FIGURES. These terms are not meant to limit the element which they describe, as the various elements may be oriented differently in various applications. Further, the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating configuration, and arrangement of the preferred and other exemplary embodiments without departing from the scope of the appended claims.
  • the methods and apparatus described herein may be adapted to produce multi-compartment pouches wherein all compartments of the pouch are filled with a composition or wherein at least one compartment is filled and at least one compartment is empty (i.e. not filled). All combinations of filled and empty compartments may be produced by the method and apparatus described herein.
  • Multi-compartment pouches may have the compartments formed simultaneously or sequentially or a combination of simultaneous and sequentially formed compartments may be produced by the method and apparatus described herein.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Wrappers (AREA)
  • Packages (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Making Paper Articles (AREA)
EP15199428.2A 2013-04-19 2014-04-22 Water soluble pouches Revoked EP3025969B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15199428T PL3025969T3 (pl) 2013-04-19 2014-04-22 Woreczki rozpuszczalne w wodzie

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB201307160A GB2513199B (en) 2013-04-19 2013-04-19 Multi-Compartment Pouches made from Two Water-Soluble Substrates
GB1320204.9A GB2520306B (en) 2013-11-15 2013-11-15 Improvements to rotatable forming and filling of water-soluble pouches
EP14722365.5A EP2834154B1 (en) 2013-04-19 2014-04-22 Making water soluble pouches

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14722365.5A Division EP2834154B1 (en) 2013-04-19 2014-04-22 Making water soluble pouches
EP14722365.5A Division-Into EP2834154B1 (en) 2013-04-19 2014-04-22 Making water soluble pouches

Publications (2)

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EP3025969A1 EP3025969A1 (en) 2016-06-01
EP3025969B1 true EP3025969B1 (en) 2017-04-19

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EP15199428.2A Revoked EP3025969B1 (en) 2013-04-19 2014-04-22 Water soluble pouches
EP14722365.5A Not-in-force EP2834154B1 (en) 2013-04-19 2014-04-22 Making water soluble pouches

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US (2) US20160068285A1 (zh)
EP (2) EP3025969B1 (zh)
JP (1) JP2016520483A (zh)
CN (2) CN106956793A (zh)
CA (1) CA2909375A1 (zh)
ES (1) ES2628913T3 (zh)
MX (1) MX2015014549A (zh)
PL (1) PL3025969T3 (zh)
WO (1) WO2014170882A1 (zh)

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"Alles über Persil Duo-Caps", HENKEL, Retrieved from the Internet <URL:https://www.persil.de/de/startseite/produkte/produktform/caps.html>
"Introducing our new strategy", HENKEL ANNUAL REPORT, 2012, pages 12 - 13, XP055456094
MC BRIDE: "Growth through NPD", AUSZUG INTERNETSEITE

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PL3025969T3 (pl) 2017-10-31
MX2015014549A (es) 2016-06-29
EP2834154A1 (en) 2015-02-11
ES2628913T3 (es) 2017-08-04
WO2014170882A1 (en) 2014-10-23
CN106956793A (zh) 2017-07-18
EP3025969A1 (en) 2016-06-01
EP2834154B1 (en) 2016-04-06
US20160068285A1 (en) 2016-03-10
CA2909375A1 (en) 2014-10-23
JP2016520483A (ja) 2016-07-14
US20170057716A1 (en) 2017-03-02

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