Bag webs with guides and bags of different materials

Abstract

The present application discloses a bag web configured to be guided through a filling station. The bag web may include a continuous guide composed of a guide material, the guide being configured to be guided through a filling station. The guide may be connected to one or more bags composed of bag material having a bag opening. A method of filling such a bag on the bag web and an application of such a bag web are also disclosed.

Description

Technical Field

[0001] The invention relates to a bag web configured to be guided through a filling station. The bag web may comprise a continuous guide consisting of a guide material configured to be guided through a filling station. The guide may be connected to one or more bags consisting of bag material having a bag opening. The invention also relates to a method for filling such bags on the bag web and the use of such a bag web. Background Art

[0002] The efficient filling of bags with contents or goods on an industrial scale is an important area of ​​technology. Filling stations have been developed over many years and have been constructed to operate efficiently.

[0003] The filling station may be those disclosed in EP1087890 or EP3160862 or EP3160863 or EP3307641 or EP3277595 or WO2020108719 and referred to as Schur® Star or Schur® Star Light. Other similar filling stations or alternative filling stations may be used. Bags are often used for purposes beyond keeping contents or articles in multiple parts for transport. Bags may provide protection for contents or articles and improve or even enable transport and display of their contents. A barrier on the bag may be required.

[0004] Such filling stations and bag webs have been developed together and adapted to work effectively with each other.

[0005] Polymers have been shown to act as guides and operating interfaces with filling stations to provide efficient handling and operation.Polymers or the like have been shown to be very suitable as guides on bag webs because they are flexible, ie durable and tear resistant.

[0006] Thus, the web or bag web is effectively produced from the same material.

[0007] However, bag materials that have been optimized (eg, utilizing automated or semi-automated processes) have been shown to have a negative impact on the environment when discarded.

[0008] Therefore, there is a need to improve and provide alternatives to industrial bag filling technology on an industrial scale.

[0009] There is a need to provide a durable bag that can be discarded with low environmental impact.

[0010] There is also a need to provide a bag that is refillable, ie, amenable to an automated or semi-automated industrial process to provide a large number of reusable bags.

[0011] At the same time, there is a need to ensure and maintain an existing efficient production system, i.e. an efficient filling station, either automated or semi-automated. Summary of the invention

[0012] The present invention is made in view of the prior art described above, and various aspects of the present invention will be described as follows.

[0013] In one aspect, there is a bag web configured to be guided through a filling station. The bag web may include a continuous guide composed of a guide material, the guide being configured to be guided through a filling station. The guide may be connected to one or more bags composed of bag material having a bag opening. The bag material is different from the guide material. The bag material may not be as flexible as the guide material.

[0014] Hereby it is achieved that the existing configuration and composition of the guide can be maintained and used on existing filling stations, while allowing bag materials to be provided with reduced environmental impact.

[0015] Thus, bags with materials that are more environmentally friendly than the guide material can be filled in an optimized manner in an automated or semi-automated process. Even on an industrial scale.

[0016] Another advantage is achieved by providing durability; this is a bag that is durable during the filling process and during use as a bag itself, and is a bag that can be discarded with low environmental impact. That is, the bag can be filled, that is, subjected to an automated or semi-automated industrial process to provide a large number of environmentally friendly bags.

[0017] Another advantage is that efficient filling systems and machines can be used and maintained, so that existing efficient production systems can be used, i.e., automated or semi-automated efficient filling stations.

[0018] The guide material may be a flexible (ie, stretchable) material used in existing filling systems.

[0019] The bag material can be an environmentally friendly material, such as paper or aluminum.

[0020] In various embodiments, the bag material may be selected from a fibrous material such as paper or a metal foil such as aluminum foil.

[0021] In one embodiment, the bag material of the bag web is paper. The paper used can vary according to needs. The paper can be coated with a protective barrier.

[0022] The density of paper can be from 30 to 150 g / m 2 Or even 250g / m 2 The paper can be, for example, 25 g / m 2 and 50g / m 2 Laminated or layered structure.

[0023] The paper can be a paper with a partial or complete coating. For a paper with a complete coating, the coating can account for 18-22 weight percent.

[0024] The thickness may be about 10-500 um, such as 50-200 um, or about 100-120 um. The tensile stiffness (MD) may be about 10 kNm / g.

[0025] The paper or fiber material may be of the carton or cardboard type.

[0026] The bag material of the bag web can also be aluminum or aluminum foil.

[0027] Such fiber materials and metal foils generally have low flexibility and are subject to tearing during handling, and particularly during handling on an industrial scale. However, such materials have advantageous properties in terms of environmental protection or protection.

[0028] In one embodiment, the guide material of the bag web is a polymer or plastic, such as a thermoplastic or a thermoplastic polymer.

[0029] The guide material may be a polymer, such as polypropylene or polyethylene. Those skilled in the art will appreciate these differences and be able to select a configuration that provides flexibility and durability suitable for existing filling stations. Such polymers have different seals and densities suitable for specific packaging or filling purposes. The polymer is sealable, heat resistant and has suitable mechanical properties in terms of sufficient penetration resistance and flexibility balanced with rigidity.

[0030] In one embodiment, the guide material is a polymer and the bag material is paper.

[0031] This specific combination of polymers (such as polypropylene or polyethylene) and paper provides for the efficient production on an industrial scale of environmentally friendly bags containing contents that can be discarded or recycled.

[0032] For example, it is possible to produce a material with a density of 60-70 g / m 2 The invention discloses a paper bag made of paper, and the paper bag has as few additives as possible, such as an amount of less than 5 weight percent.

[0033] In one embodiment, the bag web may be attached to the guide by means of splicing, at least in one or more bags. The bag material may be prepared with an impression defining a splicing path, and the bag and guide may be connected along at least a portion of the splicing path.

[0034] Splicing can be one way of connecting the guide material and the bag material. Splicing can be done by welding (including heat welding) or by gluing using glue or other gluing means. Another way can be sewing.

[0035] In one embodiment, the printing on the bags of the bag web may be made of lacquer or glue.

[0036] Aqueous and acid-modified polymer dispersions may be used by those skilled in the art. Polyolefin dispersions may be used.

[0037] Such polymer dispersions can be designed or tailored to the specific application of the guide material and bag material. For paper and polymer combinations, such polyolefin dispersions can be mixed and used as a starting point, and the matrix can be modified with rheology modifiers, waxes, etc. as needed to form a durable bond after appropriate treatment (such as heat curing).

[0038] A lacquer or varnish and a glue with adhesive properties may be selected.

[0039] In one embodiment, the guide may be connected to the one or more pockets inside the one or more pockets. The connection may be arranged substantially along the pocket opening of the one or more pockets of the pocket web.

[0040] It will be appreciated that the bag has an interior and an exterior. Attaching or connecting the guide material to the interior of the bag reduces the risk of tearing or damaging the bag or bag web during the filling process.

[0041] In one embodiment, the paper of the bag web is pure paper containing no more than a certain weight percent of additives, such as less than or equal to 5 weight percent, 20 weight percent, or 50 weight percent.

[0042] Pure paper is understood to be a pure pulp piece. The pulp can be so-called virgin pulp or recycled pulp.

[0043] The additive may be one that is mixed into the paper, or provided as a full or partial coating on one or more sides of the paper.

[0044] In one aspect, there is a method of filling bags with contents. The method may include the act of providing a bag web as a continuous guide comprised of a guide material, the guide being configured to be guided through a filling station. The guide may be connected to one or more bags comprised of bag material having a bag opening. The bag material may be less flexible than the guide material. The bag material is different from the guide material. There is the act of guiding the bags in the guide through the filling station. There is the act of filling the one or more bags with contents, and there is the act of disconnecting the one or more bags from the guide.

[0045] The method allows efficient industrial production of environmentally friendly bags containing contents or items.

[0046] There is an act of separating the bag from the guide to produce a personalized consumer bag containing contents or items. The bag may be cut or otherwise separated. The cut may be a portion of the bag material without any guide material. Alternatively, a portion of the guide material may be left for subsequent processing.

[0047] There is an action: Closing the bag. The bag can be closed by using previously disclosed splicing, welding or gluing.

[0048] Thus, a bag is effectively produced of a material different from the guide material that is effective or optimized for the filling station. Such a bag can have an environmentally friendly material, or a disposable material as opposed to a guide material.

[0049] In one embodiment of the method of filling a bag, the guide material may be a polymer and the bag material may be paper. The guide material and the polymer material may be the materials previously described.

[0050] This specific combination of polymers, such as polypropylene or polyethylene, and paper provides for an efficient production on an industrial scale of environmentally friendly bags containing contents, wherein such bags can be discarded or recycled.

[0051] In one example, a material having a density of 60-70 g / m 2 And the paper bag is made of paper with as little additive as possible (such as less than 5 weight percent).

[0052] In one aspect, there is a bag product containing contents, which is produced by the following method: a bag web is provided as a continuous guide composed of a guide material, and the guide is configured to be guided through a filling station. The guide can be connected to one or more bags composed of bag material with a bag opening. The bag material can be less flexible than the guide material. The bag material is different from the guide material. The bag can be attached to the guide by means of a splicing that defines a splicing path. The bag and the guide can be connected along at least a portion of the splicing path, the bag web is guided through the filling station in the guide, the contents are filled into one or more bags, and the one or more bags are disconnected from the guide along a cutting path on the paper bag, leaving at least a portion of the guide material. The bag and the guide can then be used to close the bag by splicing the remaining guide material on the paper bag.

[0053] Therefore, it is possible to provide a final product bag or a consumer product bag made of a specific material such as an environmentally friendly material.

[0054] As outlined, the bag leaves significantly less lead material, which can be included in the accounts of additives as outlined, and the durable bag can be easily disposable.

[0055] In one embodiment, the bag material of the bag may be paper, and the filling station is configured to guide the bag web with a polymer guide.

[0056] In one example, polymer can be used as the guide material and paper can be used as the bag material. Density of 60-70 g / m 2 Or a durable paper bag as previously outlined. The weight percentage of the additive can be controlled in a simple manner and produces a bag that can be discarded within environmental requirements. The bag is a pure paper bag, the pure paper containing no more than a certain weight percentage of additives, such as less than or equal to 5 weight percent, 20 weight percent or 50 weight percent.

[0057] In one aspect, there is a bag product containing contents, the bag product being produced by the following method: providing a bag web as a continuous guide composed of a guide material, the guide being configured to be guided through a filling station. The guide may be connected to one or more bags composed of bag material having a bag opening. The bag material may be less flexible than the guide material. The bag material is different from the guide material. The bag material may be 30-150 g / m 2 The bag web is guided in a guide through a filling station, the contents are filled into one or more bags, one or more bags are disconnected from the guide along a cutting path on the paper bag leaving at least a portion of the guide material, and the bag is closed.

[0058] Therefore, it is possible to provide a final product bag or a consumer product bag made of a specific material such as paper which is an environmentally friendly material.

[0059] As outlined, the bag has no guide material left, so the durable bag can be easily disposable.

[0060] In one example, polymer can be used as the guide material and paper can be used as the bag material. Producible density is 60-70 g / m 2 Durable paper bag.

[0061] The weight percentage of additives can be controlled in a simple manner and results in a bag that can be disposed of within environmental requirements.

[0062] Thus, the paper bag with the contents or articles is transported and can be disposed of after use.

[0063] The paper bag is a pure paper bag, and the pure paper contains no more than a certain weight percentage of additives, such as less than or equal to 5 weight percent, 20 weight percent or 50 weight percent.

[0064] Ultimately, disposable paper bags with a weight percentage of less than 5 weight percent can be produced on an industrial scale.

[0065] In one aspect, there is an application of a bag web in a filling station, which is configured to guide the bag web with a guide of flexible material and fill the bag. The bag material is different from the guide material. The bag web may include a bag made of a bag material that is less flexible than the guide material. The bag web may be as described herein. Existing filling stations and similar devices exemplified and disclosed in the above-mentioned patent documents can be built or used with little or no adjustments, thereby reusing existing industrial capabilities to efficiently produce environmentally friendly packaging or bags.

[0066] Other existing filling stations suitable for use with the disclosed flexible guides may also be constructed or used.

[0067] In other inventions, there is a bag web configured to be guided through a filling station, wherein the bag web comprises a continuous guide composed of a guide material, the guide being configured to be guided through a filling station. The guide is connected to one or more bags composed of bag material having a bag opening.

[0068] The bag material comprises the same material as the guide material.The bag material and the guide material are selected from fibrous materials, such as paper.

[0069] The bag material may be less flexible than the guide material.

[0070] Hereby it is achieved that the existing configuration and geometry of the guides can be maintained and used on existing filling stations, while allowing that a bag material with a reduced environmental impact can be provided.

[0071] Bags and guides made of environmentally friendly materials can thus be filled in an optimized manner in an automated or semi-automated process, even on an industrial scale.

[0072] Another advantage is achieved by providing durability; this is a bag that is durable during the filling process and during use as a bag itself, and is a bag that is disposable with low environmental impact. That is, the bag can be filled, that is, subjected to an automated or semi-automated industrial process to provide a large number of environmentally friendly bags.

[0073] Furthermore, the guide material shares the same beneficial properties after use of the mentioned bags.

[0074] Another advantage is that efficient filling systems and machines can be used and maintained, so that existing efficient production systems can be used, i.e., automated or semi-automated efficient filling stations.

[0075] The guide material may be a more flexible material than the bag material.

[0076] In one embodiment, the bag web is formed from a single piece of fibrous material, such as a sheet or a roll of fibrous material.

[0077] In one embodiment, the guide material is a first fibrous material such as a first paper material, and the bag material is a second fibrous material such as a second paper material.

[0078] Thus, these materials may be disposable and environmentally friendly to the same extent. The guide may be recycled or discarded. The bag may have different properties, the first paper material and the second paper material may be different and separate.

[0079] The guide material may be a first type of fiber material, such as a first paper material. The guide material may be selected as disclosed below. The guide material may contain additives to increase the flexibility and stretchability of the guide.

[0080] In one example, the paper guide is made of a material having a density of 60-70 g / m 2 Or smaller paper. In one example, the guide can be produced with as little additive as possible, such as less than 50 weight percent, 20 weight percent, and 5 weight percent.

[0081] In one embodiment, the bag material of the bag web is paper. The paper used can vary according to needs. The paper can be coated with a protective barrier.

[0082] The density of paper can be from 30 to 150 g / m 2 Or even 250g / m 2 The paper can be, for example, 25 g / m 2 and 50g / m 2 Laminated or layered structure.

[0083] The paper can be a paper with a partial or complete coating. For a paper with a complete coating, the coating can account for 18-22 weight percent.

[0084] The thickness may be about 10-500 um, such as 50-200 um, or about 100-120 um. The tensile stiffness (MD) may be about 10 kNm / g.

[0085] In one embodiment, the bag web may be attached to the guide by means of splicing, at least in one or more bags. The bag material may be prepared with an impression defining a splicing path, and the bag and guide may be connected along at least a portion of the splicing path.

[0086] Splicing can be one way of connecting the guide and bag material. Splicing can be done by welding (including heat welding) or by gluing using glue or other gluing means. Another way can be sewing.

[0087] In one embodiment, the printing on the bags of the bag web may be made of lacquer or glue.

[0088] Aqueous and acid-modified polymer dispersions can be used by those skilled in the art. Polyolefin dispersions can be used.

[0089] Such polymer dispersions can be designed or tailored to the specific application of the guide material and bag material. For paper and polymer combinations, such polyolefin dispersions can be mixed and used as a starting point, and the matrix can be modified with rheology modifiers, waxes, etc. as needed to form a durable bond after appropriate treatment (such as heat curing).

[0090] A lacquer or varnish and a glue with adhesive properties may be selected.

[0091] In one embodiment, the guide may be connected to the one or more pockets inside the one or more pockets. The connection may be arranged substantially along the pocket opening of the one or more pockets of the pocket web.

[0092] It will be appreciated that a bag has an interior and an exterior. Attaching or connecting the guide material to the interior of the bag reduces the risk of tearing or damaging the bag or bag web during the filling process.

[0093] In one embodiment, the paper of the bag web is pure paper mixed with no more than a certain weight percent of additives, such as less than or equal to 5 weight percent, 20 weight percent or 50 weight percent.

[0094] Pure paper is understood to be a pure pulp piece. The pulp can be so-called virgin pulp or recycled pulp.

[0095] The additive may be one that is mixed into the paper, or provided as a full or partial coating on one or more sides of the paper.

[0096] In another embodiment, there is a method of filling a bag with contents, the method comprising the following acts.

[0097] There is an act of providing a bag web as a continuous guide consisting of a guide material, the guide being configured to be guided through a filling station and wherein the guide has been connected to one or more bags consisting of bag material having a bag opening, wherein the bag material comprises the same material as the guide material and wherein the guide material and the bag material are selected from fibrous materials, such as paper.

[0098] Behavior exists: guiding the bag web in a guide through a filling station.

[0099] Behavior of presence: Filling of contents into one or more bags.

[0100] Presence behavior: Disconnect one or more bags from the guide.

[0101] The method allows efficient industrial production of environmentally friendly bags containing contents or articles. The method also allows the use of environmentally friendly guide materials.

[0102] Act of being: Separating the bag from the guide to produce a personalized consumer bag containing contents or items. The bag may be cut or otherwise separated. The cut may be a portion of the bag material without any guide material. Alternatively, a portion of the guide material may be left.

[0103] In one aspect, there is a use of a bag web in a filling station configured to guide the bag web with a guide consisting of a fibrous material such as paper and to fill bags, wherein the bag web comprises bags made of bag material of a fibrous material such as paper.

[0104] The disclosed bag webs can be used.

[0105] In addition to the above-mentioned bag web, in case the guide material and the bag material are the same, the following further aspects of the bag web may exist.

[0106] The invention also relates to alternative aspects as described below.

[0107] In one aspect, there is a bag web configured to be directed through a filling station.

[0108] Related embodiments of the present invention are also disclosed in the “Detailed Description” section.

[0109] In the context of the present invention, "%" means weight percent (w / w), unless otherwise specified.

[0110] In the context of the present invention, the terms "approximately", "about", "approximately" or the symbol "~" can be used interchangeably and are meant to include variations generally accepted in the art, such as including analytical errors, etc. Therefore, "approximately" can also represent the measurement uncertainty commonly experienced in the art, which can be on the order of, for example, + / - 1%, 2%, 5%, 10%, 20% or even 50%.

[0111] The term "comprising" should be interpreted as specifying the presence of stated parts, steps, acts, features or components, but does not exclude the presence of one or more other parts, steps, features or components. For example, a composition comprising a chemical compound may therefore include additional chemical compounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0112] Figure 1 A known system with a filling station for filling bags with web material is shown;

[0113] Figure 2 A known system with a fully automated filling station for filling bags with web material is shown;

[0114] Figure 3 A bag web without perforations and a bag web with perforations are shown;

[0115] Figure 4 The bag is shown disconnected from the bag web;

[0116] Figure 5 A bag web including a double bag moving through a filling station is shown;

[0117] Figure 6 A bag web comprising a double bag is shown;

[0118] Figure 7 Another embodiment of a bag web is shown;

[0119] Figure 8 Stitching paths from an exterior view (A) and interior view (B) of the bag and a top view (C) of the opened bag are shown.

[0120] Fig. 9 Another embodiment of a bag web is shown;

[0121] Fig.10 A method of filling a bag with contents is shown;

[0122] Fig.11 It is the process of producing bags.

[0123] Fig.12 Two different embodiments of guides are shown;

[0124] Fig.13Two embodiments of bag webs made of fibrous material are shown;

[0125] Fig.14 A bag made of a fibrous material is shown; and

[0126] Fig.15 Another bag made of a fibrous material is shown.

[0127] part Reference numerals Bag Web 10 Guide 20 Guide material 22 Splicing Department 24 bag 30 Bag material 32 Bag opening 34 Imprint 36 Stitching Path 38 Fill and join paths 39 Separation line 40 Cutting Path 42 Filling station 80 How to fill the bag 100 supply 200 guide 300 filling 400 Disconnect 500 closure 600 DETAILED DESCRIPTION

[0128] Figure 1 A known system is shown with a filling station 80 for filling bags of web 10. The filling station 80 may be a manual filling station 80 or a semi-automatic filling station 80 or an automated filling station 80.

[0129] The known system is designed to fill bags 30 from a roll of bag web, wherein the bag web is made of plastic material. A person skilled in the art will know which plastic material is used. The properties of the plastic materials used are well known and the system with the filling station is designed to work with these plastic materials. However, there is a growing demand for systems and bag webs for filling paper bags.

[0130] The problem is that current systems are designed for polymer or plastic materials, and paper has significantly different properties than the plastic or polymer used. Paper is less resistant to tearing than the plastics currently used. In addition, paper cannot undergo the same elastic or plastic deformations as polymers or plastics.

[0131] Those skilled in the art will know that polypropylene (PP) and polyethylene (PE) are currently used as materials for bag webs.

[0132] If the plastic bag web 10 is replaced with a paper bag 30 web, the system will tear or damage too many bags to make them practically usable. Therefore, a new system must be designed that takes into account the properties of paper (i.e., the limitations of paper relative to the currently used plastics).

[0133] When trying to use aluminum, the problems mentioned above are the same as if the system was not designed to handle aluminum.

[0134] Figure 2 There is shown a known system with a fully automated filling station 80 for filling bag webs 10. Bag webs 10 are fed to the known system from a box.

[0135] The known system is designed for use with a bag web 10 made of plastic or polymer, such as polypropylene (PP) or polyethylene (PE).

[0136] However, it would be desirable if the known system could be used to fill paper bags 30 or aluminum bags 30 or to fill bags made of any other kind of material having different mechanical properties than plastic.

[0137] Figure 3 Shown is no perforation ( Figure 3 A) and with perforation ( Figure 3 B) Bag of 30 webs.

[0138] The disclosed bag 30 web can be used as Figure 1 and Figure 2 In the filling system shown, even if the bag is made of a non-plastic material (such as paper or aluminum), the resulting bag 30 filled with the contents will be a paper bag 30 filled on a system designed for plastic bags.

[0139] The disclosed web of bags 30 includes a continuous guide 20 comprised of a guide material configured to be guided through a filling station 80, such as, but not limited to, Figure 1 and Figure 2 The guide 22 is connected to one or more bags 30 made of bag material. The one or more bags 30 have a bag opening 34 for receiving the contents.

[0140] The guide material may advantageously be a known plastic or polymer material currently used in bag 30 webs such as polypropylene (PP) or polyethylene (PE), as the system is designed with said plastic materials in mind.

[0141] In this embodiment, one or more bags 30 and guides 20 are interconnected along a splicing path 38. This interconnection may be performed by heat welding or pressure welding or any other method capable of connecting the guide material to the bag material.

[0142] The individual bags 30 are separated by a separation line, thereby allowing individual movement of the bags. The separation line 40 has a T-shape in the guide 20 to allow some movement.

[0143] One or more bags may have an imprint 36 for enabling the connection between the guide 20 and the one or more bags 30. Thus, the imprint 36 defines a splicing path 38. The imprint 38 may be a lacquer or glue. If the one or more bags 30 are made of paper with an additive equal to or less than 15 weight percent, or an additive equal to or less than 10 weight percent, or preferably an additive equal to or less than 5 weight percent, then the addition of the imprint 36 is necessary. As the amount of additive decreases, the need for the imprint 36 increases, because the splicing strength between the bag 30 and the guide 20 decreases as the amount of additive decreases; the imprint will compensate for the weakening of the splicing.

[0144] It is preferred that the bag material is made of paper with 5% by weight or less of additives, since most EU countries have restrictions on the amount of additives that recyclable paper may contain.

[0145] The guide 20 may include two plastic flaps on each side of the bag opening 34 to enable the system to guide the web bag 10. The two plastic flaps may each be folded to form two channels for receiving the guide device. The guide 20 may have a shape such as Figure 3 The guide 20 may have other means to enable the guide to pass through a system having a filling station.

[0146] Figure 4 The bag 30 is shown disconnected from the bag web 10. The bag 30 will be disconnected from the bag web 10 after being filled with contents.

[0147] However, the guide 20 is made of a guide material. The guide material may be a polymer or plastic, such as polypropylene (PP) or polyethylene (PE). The guide material is unwanted and must be removed. The guide 20 is removed by cutting along the cutting path 42, and the bag 30 is spliced ​​along the post-filling splicing path 39 below the cutting path 42 to prevent spillage from the now closed bag opening 34.

[0148] Figure 4 The steps are shown to be performed on the bag 30. The skilled person will appreciate that post-fill splicing can be done before disconnecting the bag 30 from the bag web 10 and / or cutting along a cutting path.

[0149] When existing systems are designed to fill a web of bag 30 made of plastic material or similar material, the resulting bag 30 can therefore be made of a material that cannot otherwise be used in existing systems for filling bag webs 10 .

[0150] Since the guide 20 is completely removed from the resulting bag 30 , the purity of the resulting bag 30 increases and thus it will be easier to recover the bag 30 .

[0151] Thus, it is possible to produce a resulting bag 30 made of paper sheet having a viscosity of 30-65 g / m 2 and at the same time having an additive content of equal to or less than 5 weight percent. This makes the bag 30 recyclable at least in the European Union.

[0152] Figure 5 There is shown a bag web 10 comprising a double bag 30 moving through a filling station 80. The figure discloses an embodiment of a double bag 30 from a bag web 10 as shown in EP3160863.

[0153] The bag web 10 can be modified according to the present invention so that the bag 30 is made of a material other than plastic. Figure 6 is shown in more detail.

[0154] The bag web 10 comprises a guide 20 connected to two bags 30. This connection is shown in FIG. 6 .

[0155] Figure 6 A bag web 10 is shown comprising a double bag 30. This embodiment is similar to Figure 5 The same as the embodiment disclosed in.

[0156] The bag web 10 comprises a leader 20 composed of a leader material, typically a plastic or polymer material, such as polypropylene (PP) or polyethylene (PE).

[0157] The guide 20 includes a central portion connected to the two pockets 30 and a flap with perforations connected to each pocket 30 opposite the central portion.

[0158] Perforations are necessary for the guide system shown which includes the spikes.

[0159] However, in other embodiments for other systems, the fins may form channels or simply be fins.

[0160] The bag web has been modified by the bag 30 being a material different from the guide material, wherein the guide 20 and bag 30 are connected along a splicing path 38 to connect these materials.

[0161] In some embodiments, if the bag material is paper or aluminum, it is necessary to print a mark 36 on the inside of the bag 30 to ensure a sufficiently strong connection. In this case, the mark 36 will define the splicing path 38.

[0162] Figure 7 There is shown another embodiment of a bag web 10. The overall design of the bag web 10 is known, however, previous bag webs 10 have been made from a single material.

[0163] The bag web 10 shown includes a guide 20 constructed of a guide material, typically a plastic material.

[0164] The bag web has been modified by the bag 30 being a material different from the guide material, wherein the guide 20 and bag 30 are connected along a splicing path 38 to connect these materials.

[0165] In some embodiments, if the bag material is paper or aluminum, it is necessary to print the imprint 36 on the inside of the bag 30 to ensure a sufficiently strong connection. In this case, the imprint 36 will define the splicing path 38.

[0166] Figure 8The stitching path 38 is shown from an exterior view (A) and an interior view (B) of the bag 30 and a top view (C) of the opened bag 30 .

[0167] Figure 8 A discloses by an external view the connection between a guide 20 made of a polymer or plastic material, which may be polypropylene (PP) or polyethylene (PE), and a bag 30 made of a paper material. In this embodiment, the splicing path 38 is clearly shown as an indentation. Figure 8 B discloses the connection between the guide 20 made of plastic material and the bag 30 made of paper material through an internal view. The splicing path 38 is Figure 8 The left side of B is most visible.

[0168] The guide 20 of plastic or polymer material may be removed at a later stage by cutting along a cutting path underneath the guide 20 .

[0169] Figure 8 C shows a view into the bag 20 through the bag opening 34. The guide 20 is connected to the bag 30 on both sides of the bag opening 34.

[0170] Specifically, in this embodiment, the bag web material uses a standard polymer as a guide and the paper bag is made of 65g / m 2 , made of paper with a thickness of about 100um. The imprint is a polyolefin dispersion.

[0171] Fig. 9 Another embodiment of a bag web 10 is shown. The bag web 10 is configured to be guided through a filling station 80, the bag web 10 comprising a continuous guide 20 made of a guide material 22 being a plastic material. The guide 20 is configured to be guided through a filling station 80.

[0172] The guide 20 is connected to one or more bags 30 made of a bag material 32 of paper. The one or more bags 30 have a bag opening 34 for receiving contents.

[0173] The pocket web 10 is disclosed as having only two pockets 30, however it may actually have an unlimited number of pockets.

[0174] A skilled person will know that the "Schur" mark has nothing to do with the present invention, as the mark has no technical contribution.

[0175] Fig.10 A method of filling bag 100 is illustrated.

[0176] The method 100 includes acts of providing 200 a bag web 10 as a continuous leader 20 comprised of a leader material 22 configured to be guided through a filling station 80 wherein the leader 20 has been connected to one or more bags 30 having bag openings 34 made of bag material different from the leader material.

[0177] Thus, the guide 20 may be made of a material best suited for interaction with a conveying system or the like to and from the filling station, while the bag material is selected for other properties such as recyclability.

[0178] The method 100 includes an act of guiding 300 a bag of web 10 through a filling station 80 using a guide 20 .

[0179] The method 100 includes the act of filling 400 one or more bags 30 with contents or items.

[0180] The act of filling 400 may be an act performed manually or semi-automatically or fully automatically.

[0181] The method 100 includes disconnecting 500 one or more bags 30 from the guide 20. Thus, the resulting bags 30 are almost free of residues of guide material.

[0182] In an embodiment of the method 100 of filling a bag, the leader material is a polymer and the bag material is paper.

[0183] Preferably, the paper is recyclable paper. The effect of disconnecting the bag 30 from the guide 20 is that the recyclable paper is not contaminated by the guide material.

[0184] The leader material may be polypropylene (PP) or polyethylene (PE) which is undesirable in paper recycling because such materials become contaminants. If the leader material is left on the bag 30, the leader material will actually increase the weight percentage of additives in the paper without providing any positive effect.

[0185] Fig.11 The process of producing the bag 30 is shown.

[0186] The bag 30 with the content is produced by a process 100, which includes the acts of providing 200 the bag web 10 as a continuous guide 20 composed of a guide material, the guide being configured to be guided through a filling station 80, and wherein the guide 20 is connected to one or more bags 30 composed of bag material having a bag opening 34. The bag material is less flexible than the guide material, the bag material being paper in a sheet having a weight of 30-150 g / m 2 , such as 60-70g / m 2The paper is pure paper, which contains no more than a certain weight percentage of additives, such as less than or equal to 5 weight percent, 20 weight percent or 50 weight percent.

[0187] An additive weight percent of less than or equal to 20 weight percent is preferred over more than 50 weight percent because the resulting paper bag 30 would be considered recyclable in some countries.

[0188] A weight percent of additive less than or equal to 5 weight percent is most preferred because the resulting paper bag 30 will be considered recyclable / disposable in the European Union.

[0189] The process 100 may also include an act of guiding 300 the bag of web 10 in the guide 20 through the filling station 80 .

[0190] The process 100 may also include the act of filling 400 the one or more bags 30 with contents.

[0191] Filling 300 actions can be performed manually or semi-automatically or fully automatically.

[0192] The process 100 may also include the act of disconnecting 500 one or more bags 30 from the guide 20. Thus, the resulting bags 30 are not contaminated by the guide material, and this makes it easier to have low weight percentage additives.

[0193] The leader material may be polypropylene (PP) or polyethylene (PE) which is undesirable in paper recycling because such materials become contaminants. If the leader material is left in the bag 30, the leader material will actually increase the weight percentage of additives in the paper without providing any positive effect.

[0194] The process 100 may further include an act of closing 600 the bag 30. The act of closing the bag may be performed by stitching or sewing.

[0195] In another embodiment, a bag with contents is produced by a process 100. The process 100 includes the acts of providing 200 a bag web 10 as a continuous guide 20 comprised of a guide material, the guide being configured to be guided through a filling station 80. The guide has been connected to one or more bags 30 comprised of bag material having a bag opening 34, wherein the bag material is less flexible than the guide material. The bags 30 are attached to the guide 20 by splicing that defines a splicing path 38, and wherein the bags 30 and the guide are connected along at least a portion of the splicing path 38.

[0196] The process 100 also includes the act of guiding 300 the bag web 10 by the guide 20 through the filling station 80 .

[0197] The process 100 also includes an act of filling 400 the contents into one or more bags 30. The act of filling 300 may be performed manually or semi-automatically or fully automatically.

[0198] The process 100 also includes the act of disconnecting 500 one or more bags 30 from the leader 20 along the cut path 38 on the paper bag 30 leaving at least a portion of the leader material.

[0199] The process 100 also includes the act of closing 600 the bag 30 by splicing the remaining leader material to the paper bag 30. Thus, a portion of the leader 20 is used to close the bag, thereby simplifying the process.

[0200] The bag material may be paper, and the filling station is configured to guide the bag web with a polymer guide.

[0201] Fig.12 Two different embodiments of the guide 20 are shown.

[0202] Fig.12 A discloses a guide 20 connected to a bag 30. The guide 20 comprises two channels for being guided through a system comprising a filling station.

[0203] The guide 20 is composed of a guide material that is a plastic material such as polypropylene (PP) and polyethylene (PE).

[0204] The bag 30 is made of a bag material, which is paper. Near the bag opening 34, the bag 30 is provided with an imprint 36, which enables the bag material to be connected to the guide material by splicing along said imprint 36. Thus, the imprint 36 defines a splicing path 38.

[0205] Fig.12 B is public Figure 3 B is an embodiment of a guide member 20 of the type shown.

[0206] The guide 20 is connected to the bag 30. The guide 20 comprises two flaps with perforations for engaging with spikes guided through a system comprising a filling station. One of the flaps stands upwards and one of the flaps extends downwards towards the bottom of the bag 30.

[0207] The guide 20 is composed of a guide material that is a plastic material such as polypropylene (PP) and polyethylene (PE).

[0208] The bag 30 is made of a bag material, for example paper. Near the bag opening 34, the bag 30 is provided with an imprint 36 (not shown), which enables the bag material to be connected to the guide material by splicing along the imprint 36. The imprint 36 thus defines a splicing path 38. This Figure 8 The B is shown in more detail along the dashed line.

[0209] Fig.13 Two embodiments of bag webs 10 made of fibrous material are shown.

[0210] Fig.13 A discloses a bag web 10 configured to be guided through a filling station 80, the bag web 10 comprising a continuous guide 20 of guide material configured to be guided through a filling station 80. The guide 20 is connected to one or more bags 30 of bag material having a bag opening 34.

[0211] The bag material comprises the same material as the guide material, wherein the bag material and the guide material are selected from fibrous materials, such as paper.The transition between the guide 20 and the bag 30 is a smooth transition which has been indicated by a dotted line.

[0212] One or more bags 30 are separated along a T-shaped separation line 40. The T-shaped separation line 40 enables the bags to be individually displaced.

[0213] The guide 30 has perforations in the longitudinal direction for engagement with spikes in a system for conveying the bag web 10 through the filling station 80 .

[0214] Fig.13 B discloses a bag web 10 configured to be guided through a filling station 80, the bag web 10 comprising a continuous guide 20 of guide material configured to be guided through a filling station 80. The guide 20 is connected to one or more bags 30 of bag material having a bag opening 34.

[0215] The bag material comprises the same material as the guide material, wherein the bag material and the guide material are selected from fibrous materials, such as paper.The transition between the guide 20 and the bag 30 is a smooth transition which has been indicated by a dotted line.

[0216] One or more bags 30 are separated along a T-shaped separation line 40. The T-shaped separation line 40 enables the bags to be individually displaced.

[0217] Fig.14 A bag 30 made of a fiber material is shown with a bag opening 34. In this case, the bag 30 is still connected to the guide 20.

[0218] The guide 20 will be removed by cutting along the cutting path 42 and the bag can then be closed along the splicing path by splicing or by sewing or by any other closing means.

[0219] Fig.15 Another bag 30 made of fiber material is shown having a bag opening 34. In this case, the bag 30 is still connected to the guide 20.

[0220] The guide 20 will be removed by cutting along the cutting path 42 and the bag can then be closed along the splicing path by splicing or by sewing or by any other closing means.

Claims

1. A bag web (10) configured to be guided through a filling station (80), the bag web (10) comprising: - a continuous guide (20) consisting of a guide material (22), the guide being configured to be guided through a filling station (80), and wherein the guide (20) is connected to one or more bags (30) consisting of a bag material (32) having a bag opening (34), wherein the bag material (32) is different from the guide material (22), wherein the bag material (32) is selected from a fibrous material including paper or a metal foil, wherein the guide material (22) is selected from a plastic or a polymer including polypropylene (PP) or polyethylene (PE).

2. The bag web (10) according to claim 1, wherein: The guide material (22) is a polymer and the bag material (32) is paper.

3. The bag web (10) according to claim 1, wherein: The one or more of the bags (30) are attached to the guide (20) by means of splicing, the bag material (32) being prepared with an impression (36) defining a splicing path (38), and the bag (30) and guide (20) being connected along at least a portion of the splicing path (38).

4. The bag web (10) according to claim 2, wherein: The one or more of the bags (30) are attached to the guide (20) by means of splicing, the bag material (32) being prepared with an impression (36) defining a splicing path (38), and the bag (30) and guide (20) being connected along at least a portion of the splicing path (38).

5. The bag web (10) according to claim 3, wherein: The imprint (36) on the bag (30) is made of lacquer or glue.

6. The bag web (10) according to claim 4, wherein The imprint (36) on the bag (30) is made of lacquer or glue.

7. The bag web (10) according to any one of claims 1 to 6, wherein: The guide (20) is connected to the one or more bags (30) inside the one or more bags (30) substantially along the bag opening (34) of the one or more bags (30).

8. The bag web (10) according to any one of claims 1 to 6, wherein: The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 50 weight percent.

9. The bag web (10) according to any one of claims 1 to 6, wherein: The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 20 weight percent.

10. The bag web (10) according to any one of claims 1 to 6, wherein The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 5 weight percent.

11. The bag web (10) according to claim 7, wherein: The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 50 weight percent.

12. The bag web (10) according to claim 7, wherein: The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 20 weight percent.

13. The bag web (10) according to claim 7, wherein: The paper is pure paper containing no more than a certain weight percentage of additives, and the amount of the additives is less than or equal to 5 weight percent.

14. A method (100) of filling a bag with contents, the method (100) comprising the following acts: - providing (200) a bag web (10) with a continuous guide (20) consisting of a guide material (22), the guide being configured to be guided through a filling station (80), and wherein the guide (20) is connected to one or more bags (30) consisting of a bag material (32) having a bag opening (34), wherein the bag material (32) is different from the guide material (22), wherein the bag material (32) is selected from fibrous materials including paper or metal foils, wherein the guide material (22) is selected from plastics or polymers including polypropylene or polyethylene; - guiding (300) the bag web (10) in a guide (20) through a filling station (80); - filling (400) the contents into one or more bags (30); - Disconnecting (500) the one or more bags (30) from the guide (20).

15. The method (100) of filling a bag according to claim 14, wherein: The guide material (22) is a polymer and the bag material (32) is paper.

16. A bag (30) containing contents, the bag being produced by the following method: - providing (200) a bag web (10) with a continuous guide (20) consisting of a guide material (22), the guide being configured to be guided through a filling station (80); and wherein the guide (20) is connected to one or more bags (30) having a bag opening (34) and consisting of a bag material (32), the bag material (32) being different from the guide material (22), wherein the bag material (32) is paper, wherein the guide material (22) is selected from plastics or polymers including polypropylene or polyethylene; the bags (30) are attached to the guide (20) by means of splicing defining a splicing path (38), and the bags (30) and the guide are connected along at least a portion of the splicing path (38); - guiding (300) the bag web (10) in a guide (20) through a filling station (80); - filling (400) the one or more bags (30) with contents; - disconnecting (500) the one or more bags (30) from the guide (20) along the splicing path (38) on the bag (30) leaving at least a portion of the guide material; - Closing (600) the bag (30) by splicing the guide material (22) remaining on the bag (30).

17. The bag (30) according to claim 16, wherein The filling station (80) is configured to guide the bag web (10) using a guide (20) composed of a polymer.

18. A bag (30) containing contents, the bag being produced by the following method: - providing (200) a bag web (10) with a continuous guide (20) consisting of a guide material (22), the guide being configured to be guided through a filling station (80), and wherein the guide (20) is connected to one or more bags (30) consisting of a bag material (32) having a bag opening (34), wherein the bag material (32) is different from the guide material (22); wherein, Bag material is 30-150g / m 2 The paper is pure paper, the pure paper contains no more than a certain weight percentage of additives, the amount of the additives is less than or equal to 50 weight percent, wherein the guide material (22) is selected from plastics or polymers including polypropylene or polyethylene; - guiding (300) the bag web (10) in a guide (20) through a filling station (80); - filling (400) the contents into one or more bags (30); - disconnecting (500) the one or more bags (30) from the guide (20) along the splicing path (38) on the paper bag (30) leaving at least a portion of the guide material; - Closed (600) bags (30).

19. The bag (30) according to claim 18, wherein Bag material is 60-70g / m 2 of paper.

20. The bag (30) according to claim 18 or 19, wherein The amount of the additive is comprised less than or equal to 20 weight percent.

21. The bag (30) according to claim 18 or 19, wherein The amount of additives included is less than or equal to 5 weight percent.

22. Use of a bag web (10) in a filling station (80), the filling station being configured to guide the bag web (10) with a guide (20) made of a flexible material and to fill bags (30), wherein: The bag web (10) comprises a bag consisting of a bag material (32) different from a guide material (22), wherein the bag material (32) is selected from a fibrous material including paper or a metal foil, wherein the guide material (22) is selected from a plastic or a polymer including polypropylene or polyethylene.

23. Use of a bag web (10) according to claim 22 in a filling station, wherein: The bag web (10) is a bag web according to any one of claims 1 to 13.

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