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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/8043—Packages adapted to allow liquid to pass through the contents
  • B65D85/8046—Pods, i.e. closed containers made only of filter paper or similar 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/8043—Packages adapted to allow liquid to pass through the contents
  • B65D85/8061—Filters
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/8043—Packages adapted to allow liquid to pass through the contents
  • B65D85/8067—Packages for several ingredients
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
  • B65D85/8085—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags characterised by an outer package, e.g. wrappers or boxes for enclosing tea-bags
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47G—HOUSEHOLD OR TABLE EQUIPMENT
  • A47G19/00—Table service
  • A47G19/12—Vessels or pots for table use
  • A47G19/16—Tea infusers, e.g. infusing bags, egg-shaped infuses
• • 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
  • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
  • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
  • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
  • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
  • B65D85/812—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags with features facilitating their manipulation or suspension

Definitions

• This invention relates to a filter-bag for infusion products and a method for making the filter-bag.
• the invention relates to a filter-bag for liquid infusion products, in particular hot liquids (such as, for example tea or chamomile), in powder, granules or leaves.
• hot liquids such as, for example tea or chamomile
• filter-bag There are currently two different types of filter-bag on the market: the so-called “traditional” filter-bag, which, in effect, has a substantially flat final configuration, and the filter-bags with different three-dimensional shapes, such as, for example, tetrahedral or spherical (when the filter-bag is obtained by thermoforming process).
• the first type of filter-bags is obtained starting from one or more pieces of filter material which are suitably folded and joined to make one or more chambers, each containing a dose of product intended for infusion in liquid (water).
• the filter-bag thus formed may be combined with a string which is joined at one end to the filter-bag and at the other end to a tag, used to handle the filter-bag during infusion.
• This type of filter-bag is, advantageously, extremely practical because it is relatively easy to make in current machines and it also quick and easy to package.
• a base product for example, tea or camomile
• a flavoured product for example, tea or camomile
• the current filter-bags are not designed and/or structured in such a way as to combine two separate products in a single filter-bag (except by means of a mixture of products prepared before packaging).
• the filter-bags obtained by the thermoforming process do not allow a clear vision of the product contained therein (due to the intrinsic features of the structure of the material subjected to the thermoforming which make it, at the end of its process, substantially opaque) thereby possibly lowering the appearance quality of the filter-bag.
• the aim of this invention is to provide a filter-bag for infusion products which is able to overcome the drawbacks described.
• a further aim of this invention is to provide a filter-bag which is able to give a direct vision of the product(s) contained and with a very attractive appearance.
• a further aim of this invention is to provide a filter-bag which is able to contain several infusion products in a reduced space whilst maintaining the qualitative integrity of each individual product until the infusion.
• a further aim is to provide a method for making the filter-bag for liquid infusion products.
• the filter-bag for liquid infusion products comprises a thermoformed body with filtration properties having an inner volume defined by a bottom, a mouth, or opening, delimited on the perimeter by an upper flat edge and a connecting wall between the bottom and the upper edge.
• the wall is provided with at least one rib extending from the bottom towards the upper edge in such a way as to define at least two chambers for containing corresponding infusion products separate from each other and included in the internal volume of the thermoformed body.
• the filter-bag comprises a flat piece of non- thermoformable filter material, having transparency characteristics, and associated with the upper edge of the thermoformed body for covering the opening and separating the chambers obtained in this way.
• the non-thermoformable filter material for providing transparency characteristics, is of the "woven” or “non-woven” type.
• the non-thermoformable filter material for providing transparency characteristics, has air permeability values (UNI EN ISO 9237) greater than 1000 cm 3 /cm 2» s.
• the non-thermoformable filter material has air permeability values between 1000 and 10000 cm 3 /cm 2» s, more preferably between
• the structure of the filter-bag according to this invention makes it possible to obtain, advantageously, in a single component, the presence of two different infusion products (for example a main product and a flavouring product) separate from each other until the liquid infusion of the filter-bag.
• two different infusion products for example a main product and a flavouring product
• the presence of the non-thermoformable transparent piece for closing the thermoformed body allows a clear and immediate vision of the type of products contained.
• the separating rib extends towards the upper edge to form at least one further inner wall in such a way as to interrupt the continuity of the bottom.
• the rib has an extension, calculated starting from the bottom, such as to allow at its upper end to come into contact with the piece of transparent filter material for closing the opening.
• This characteristic ensures a complete separation of the inner chambers as well as an increase in the mechanical shape seal of the filter-bag.
• FIG. 1 to 6 illustrate a first embodiment of a filter-bag for infusion products according to this invention, in, respectively, a perspective view from above, a side view, a front view, a plan view from below, a perspective view from above without products and a perspective view from below;
• FIG. 7 to 12 illustrate a second embodiment of a filter-bag for infusion products according to this invention, in, respectively, a perspective view from above, a side view, a side view from the side opposite the previous one, a plan view from above, a perspective view from above without products and a perspective view from below;
• FIG. 13 to 17 illustrate a third embodiment of a filter-bag for infusion products according to this invention, in, respectively, a perspective view from above, a plan view from below, a side view, a perspective view from above without products and a perspective view from below;
• the filter-bag according to the invention (denoted in its entirety by the numeral 100) is used for containing liquid infusion products.
• the filter-bag 100 is used for liquid infusion products, in particular hot liquids, such as tea or chamomile (in powder, granules or leaves).
• hot liquids such as tea or chamomile (in powder, granules or leaves).
• the filter-bag 100 for liquid infusion products comprises a thermoformed body 1 with filtration properties having an inner volume defined by a bottom 2, a mouth delimited on the perimeter by an upper flat edge 3 (with a closed extension as described below) and at least one connecting wall 4 between the bottom 2 and the upper edge 3.
• the wall 4 is provided with at least one rib 5 extending from the bottom 2 towards the upper edge 3 in such a way as to define at least two chambers 6, 7 for containing corresponding infusion products P1 , P2 separate from each other and included in the internal volume of the thermoformed body 1 .
• the filter material is of the "non-woven" type.
• the non-thermoformable filter material having transparency characteristics makes it possible to see the product contained inside the bag.
• the above-mentioned two infusion products P1 and P2 may be, respectively, a so-called basic product (tea or chamomile) and a flavouring product (for example, fruit and/or plant-based flavours).
• the rib 5 extends towards the upper edge 3 to form at least one further inner wall 5a in such a way as to interrupt the continuity of the bottom 2 (see Figures 1 to 17).
• the rib 5 extends from the base 2 and modifies the extension of the wall 4 generating one or more walls inside the original volume of the body 1 , thus separating both the bottom 2 and the wall 4.
• the rib 5 has an extension, calculated starting from the bottom
• the rib 5 has its upper end 9 substantially coplanar with the upper edge 3 of the body 1.
• the upper edge 3 is circular in shape and the rib 5 is configured to obtain a diametric separation of the body 1 in such a way as to define two chambers 6 and 7 of similar volume through the formation of a bottom 2 with a twin lobed shape.
• the rib 5 has a rectilinear extension of its upper end 9 in such a way as to form two separate parallel inner walls starting from the bottom 2 and projecting towards the upper edge 3.
• the rib 5 consists of two walls spaced from each other by a distance D (see Figure 3) which is then the width of the upper end 9 of the rib 5.
• the upper edge 3 is circular in shape and the rib 5 has an undulating extension of its upper end 9 in such a way as to define two separate walls with an undulating extension parallel to each other starting from the bottom 2 and projecting towards the upper edge 3.
• extension of the rib 5 is in the shape of an "S" and allows the two chambers 6 and 7 to have a substantially identical volume.
• the bottom 2 and the wall 4 are interrupted by the two walls with an undulating extension which define an S-shaped channel along the bottom 2 and up to the upper edge 3 thus defining a corresponding inner wall of each chamber 6 and 7.
• the rib 5 comprises the two undulating walls spaced from each other by a constant mutual distance which is the width of the upper end 9 of the rib 5.
• the rib 5 has its upper end 9 coplanar with the upper edge 3 and connected at the edge 3 in at least two points which are opposite each other on the circumference formed by the edge 3 to define a further upper auxiliary edge.
• This configuration makes it possible to increase both the seal between the two chambers 6 and 7, and the mechanical seal of the thermoformed body 1 .
• the upper edge 3 has a circular shape and the rib 5 is configured with an annular extension inside the perimeter of the upper edge 3 to obtain a circular separation of the inner volume of the body 1 and in such a way as to define two separate chambers 6, 7 of different volumes.
• the rib 5 is ring-shaped and concentric relative to the upper edge in such a way as to define two chambers 6, 7 with annular extension.
• the two chambers 6, 7 are obtained with one inside the other and concentric with each other.
• the rib 5 is formed around the centre of the bottom 2 and in such a way as to create a chamber 7 with a reduced volume surrounded by the other chamber 6 with a volume greater than the chamber 7.
• the rib 5 has a upper end 9 coplanar with the upper edge 3 but independent and without points of contact with the upper edge 3.
• This invention also provides a method for making a filter-bag 100 for liquid infusion products of the type described above.
• the method comprises the following steps:
• thermoformable filter material Figure 18
• a die 10 comprising a head 1 1 provided with a cavity 12 forming a volume for a body 1 of the filter-bag to be formed; the cavity 12 has a bottom 13, a mouth delimited on the perimeter by an upper flat edge 14 and at least one connecting wall 15 between the bottom 13 and the upper edge 14; the head 1 1 of the die 10 is equipped with at least one rib 16 extending from the bottom 13 towards the upper edge 14 in such a way as to define at least two chambers 17 and 18 which are separate from each other and included in the inner volume of the head 1 1 ( Figure 18);
• the flat piece 8 of non-thermoformable material has transparency characteristics (that is, it allows to an observer to look through the piece).
• the step of preparing a flat piece of 8 of non-thermoformable filter material with transparency characteristics comprises preparing a flat piece 8 of non- thermoformable filter material with air permeability greater than 1000 cm 3 /cm 2» s, preferably between 1000 and 10000 cm 3 /cm 2» s, more preferably between 3000 and 7000 cm 3 /cm 2» s.
• the only variant of a structural type relates to the die and the punch which will be configured according to the shape of the corresponding filter-bag 100.
• the step of hot plastic deforming the portion of strip S1 of filter material is carried out by (that is, it comprises a step of) heating the head 20 of the punch 19.
• the step of hot plastic deforming the portion of strip S1 of filter material is carried out by preheating the strip S1 of filter material and using the head 20 of the punch 19 not heated.
• thermoformed body 1 After the step of hot deforming the portion of strip S1 , there is a step of cutting of the thermoformed body 1 .
• This cutting step is achieved, preferably, by moving cutting means positioned between the die 10 and the punch 19 (not illustrated).
• the step of dosing the individual infusion products P1 and P2 may be performed simultaneously with independent dosers 21 and 22 (a doser for each product).
• the dosing step is carried out in separate and successive phases, again with independent dosers 21 and 22 (a doser for each product).
• the piece 8 of filter material is associated, hot, on the upper edge 3 of the body 1.
• the piece 8 of filter material is unwound from a reel 23 of strip S2 of filter material and positioned on the edge 3 of the body 1 .
• a head 24 having a heated edge 25 and cutting means 26 carry out the association on the edge 3 of the body 1 and a relative cut of the strip S2 to define the closing strip 8.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Medical Preparation Storing Or Oral Administration Devices (AREA)
• Packages (AREA)
• Containers And Plastic Fillers For Packaging (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=54347763

Family Applications (1)

Country Status (6)

Cited By (3)

Families Citing this family (2)

Citations (7)

Family Cites Families (6)

• 2015
  • 2015-08-05 IT ITUB2015A002711A patent/ITUB20152711A1/it unknown
• 2016
  • 2016-07-19 WO PCT/IB2016/054280 patent/WO2017021806A1/en active Application Filing
  • 2016-07-19 PL PL16753476T patent/PL3328757T3/pl unknown
  • 2016-07-19 JP JP2018504917A patent/JP6908589B2/ja active Active
  • 2016-07-19 EP EP16753476.7A patent/EP3328757B1/en active Active
  • 2016-07-19 US US15/740,529 patent/US20190359419A9/en not_active Abandoned

Patent Citations (7)

Also Published As

Similar Documents

Legal Events