ES2711813T3 - Container of paper, in particular paper sack - Google Patents

Abstract

Paper container (1), in particular paper sack, which has - an opening (4) - at least two adhesion elements (8, 10) for closing the opening (4), which can be activated separately, and - at least one tear element (12), - through which the opening (4) can be opened, when it has been closed with a first of the at least two adhesion elements (8) and - through which the opening (4) cannot be opened, when it has been closed with a second of the at least two adhesion elements (10), characterized in that the container (1) has at least one handle (32) and a folded and glued bottom (20), which is stabilized by a cover sheet (24), where the handle (32) is part of the cover sheet (24) and the handle (32) is punched or cut from the cover sheet (24) .

Description

DESCRIPTION

Container of paper, in particular paper sack

The invention relates to a paper container, in particular a paper bag, having an opening, at least two adhesion elements for closing the opening, which can be activated separately, and at least one tear-off element, through which the opening can not be opened, when it has been closed with a first of the at least two adhesion elements, and through which the opening can be opened, when it has been closed with a second of the at least two elements of adhesion.

A container of this type is known, for example, from document US2014 / 270584 A1, DE202013102644 U1, WO2004 / 067391 A2 and DE 202012006901 U1.

Paper containers are used in the most different applications. Thus, for example, paper sacks, in particular in the form of cross-bagged bags and valve bags, are used in order to transport, for example, construction materials, such as, for example, mortar, cement and gypsum, or food and ingredients. for these, for example, flour or milk powder. In this regard, the filled sacks are torn or cut off when the contents are used, they are completely dumped and then they are removed. A reuse is not foreseen and it is not reasonable in this case of application.

However, paper containers are also used, for example, in the shipping of other objects, in particular documents, in the form of solid envelopes. In this regard, the new use of conventionally used document shipments is not considered, since they have a tear strip, through which the document container is torn, which can not be used again. . In the shipment of goods that are ordered, for example, online and then delivered through logistics service providers, on the contrary, a carton is used for the most part. However, cartons of this type have a number of disadvantages. The cartons for logistical reasons of costs and space are only provided in a relatively small number of different sizes, most of the products that are sent are sent in cartons, which are really too large for the corresponding products. In this way, a valuable place and space is lost in the transport vehicle, for example, a truck or a container.

In increasing measure, today, for example, garments and shoes are entrusted, for example, on the internet and delivered to the corresponding buyer at home. Since the order is made only by images and tables of sizes, a plurality of the objects delivered as return packages are returned to the sellers or manufacturers, since for example they do not feel good or do not correspond to the expected optical impression. In general, the same carton is sent, however, which is now filled in one part with even less frequency, since for the customer it is eventually acquired and retained a part of the order. The cardboard must be closed by the customer costly, for example, using body and / or adhesive tape.

Therefore, the invention aims to perfect a paper container, in particular a paper bag having an opening, so that the size of the container can be adapted to a size of an object to be stored therein and also be Allow a return or reuse.

The invention achieves the stated objective by means of a generic paper container, in particular a paper sack according to the preamble of claim 1, which stands out because it has at least one handle and a folded and bonded base, which is stabilized by a cover sheet , where the handle is part of the cover sheet and the handle is punched or cut from the cover sheet.

In this way the paper container, in particular the paper bag, is more appropriate, for example, for the return of merchandise and / or documents. During the first transport of the merchandise, the opening of the container is closed with the first of the at least two adhesion elements. In the customer or receiver of the shipment, the opening can be opened by the at least one tear element and thus the targeted objective is made accessible. If, for example, the object is to be returned or the recipient of the shipment wants to use the paper container in a different way a second time, he can now close the opening by the second of the at least two adhesion elements. In the case of the container it can be a paper bag, a paper bag, a paper or cardboard envelope, a shipping container or another paper container. In the case of the paper container, in the context of the present application, it is a container that is made at least predominantly of paper. The same container can be made, for example, of a composite material, of which one component, which is advantageously the predominant part, is made of paper. Thus it is possible, for example, to use a three-layer composite, which is composed, for example, of two outer paper layers and a plastic layer embedded therein, for example polyethylene. Of course, other paper or cardboard materials can also be used. The paper containers can preferably be folded from a paper cutout, which can be multi-layered and / or possibly coated. These processes are known, for example, from the manufacture of paper sacks, for example, cross-bottom sacks or valve sacks.

By selecting the paper material it can be achieved, for example, that the material and therefore the container is water resistant. This can be a protection against spraying or a complete impermeability.

In an advantageous configuration of the container, the two adhesion elements are coated adhesive strips or activatable adhesive strips, in particular activatable by moisture. The coated adhesive strips are coated, for example, by a special sheet, which can be easily removed from the adhesive strips. The adhesive strip can be used after removal of the foil to close the container. Alternatively or additionally to this it is also possible to use activatable adhesive strips which, for example, must be moistened in order to unfold their adhesive effect. These may be made, for example, of a starch, a polyvinyl alcohol, a plastic or other suitable material. In an especially preferred configuration, these strips can be printed by appropriate devices, so that the manufacturing cost is reduced for a container so configured of paper. As an alternative to the adhesive strips, for example, heat-sealable elements or adhesion elements which are made of two components can also be used. Thus, for example, one area of the paper container is covered with a first component of the two-component adhesive, for example, it is sprayed or printed, and another zone with the respective second component. Only when both components come into contact with each other and if pressure or heat is applied eventually, does an adhesive connection lead to the closure of the opening.

In particular, when using adhesive strips the advantage consists in that these adhesive strips can be put in contact with almost any other area of the paper container for closing the opening and there they display their adhesive or adhesion effect. Thus, it is possible, for example, to fold or roll up a paper sack or a container configured of another form of paper and thus reduce the spatial extent as strongly as the object to be packaged allows. In this way, in particular in transport vehicles or transport containers, valuable space is saved, so that more shipments can be transported per unit volume. In addition, in this way it is possible to send objects of different sizes in containers that have the same size. Therefore, it is no longer necessary to provide a plurality of containers of different paper sizes, in order to achieve the optimum size for a plurality of the objects to be sent.

Advantageously, the at least one tear element is disposed between the at least two adhesion elements. In this way, it is easily possible for a tear of the tear element to lead to opening the opening, when it has been closed with the first of the two adhesion elements, while the opening remains closed, when it has been closed with the second one. of the elements of adhesion. Furthermore, the advantage of a tear element is that the recipient of a package can recognize whether the paper container, in particular the paper bag, has already been opened once by the tear-off element.

Preferably the at least one tear-off element and the at least two adhesion elements are arranged on a tongue of the container, which can be folded down, so that the opening can be covered. The tab is consequently arranged through at least one of the two adhesion elements, for example, in a base body or other component of the container and the opening is thus closed. Since it is possible to adjust how far the tongue can be folded down or retracted, the size of the container ready for shipment can be adjusted, in which the opening is closed accordingly with respect to the opening of the object containing the container. A tongue of this type is arranged, for example, at one edge of the opening and can be folded in the direction of the opening. This corresponds to the closing of an envelope.

In an advantageous configuration, the container has at least one vent via which the air can escape from the container when the opening is closed. The loading, transshipment and unloading, as well as the storage of the items sent is currently carried out in an automated way through corresponding installations. Thus, the individual containers frequently circulate on conveyor belts and are dropped, for example, in a transport container. In this respect it is quite possible that a container which is now loaded with another container is already located in the container. When using carton this can lead to the corners and edges of the cardboard of this type deteriorate, which leads to an overall exterior of bad appearance. If, on the other hand, plastic bags are used, as is partially proposed in the state of the art, it is possible that these explode by the additional loading of containers additionally introduced into the container. This is disadvantageous for the merchandise to be shipped and hardly or not tolerated by the customers. Therefore, in the preferred embodiment, the container has a ventilation channel, through which the air can escape from the container, even when the opening is closed. If a similar container is consequently additionally loaded, for example, by another object, the paper container can not explode, since air can escape from the interior of the container through the at least one ventilation channel.

In an advantageous configuration, the ventilation path is generated by half of an additional paper layer which, for example, in the area of a bottom to be folded from a folded paper web, ensures that an outlet for the path is formed. of ventilation. In this configuration, a configuration of one and a half layers of the paper container is discussed, since the additional half of the paper layer for the ventilation channel is not arranged in the entire extension inside the paper container. The same container can be composed of a multilayer paper or monolayer, and present additional fractions, for example, of a plastic or similar material, or be made exclusively of paper.

In an advantageous configuration, the at least one ventilation channel runs accordingly along a separate paper. This is arranged inside the container and is in contact on at least one side with the inner side of the container. According to the invention, the container has at least one handle, which is preferably arranged on one side of the container remote from the opening. The handle is punched or cut from a cover sheet, which is disposed at the bottom of the container. Advantageously, the outlet of the at least one ventilation channel is located in the area of this at least one handle element. If the handle element is configured as part of a cover sheet, this cover sheet can further stabilize a folded and bonded base. A transport handle of this type is particularly advantageous for the paper container, in particular a paper bag, when this container is used as a shipping container. Thus, for example, a supplier who must distribute and distribute several containers of this type, for example, in a residential building or with several floors, can easily grab several of these containers in their handles and supply them in the determined place. It is avoided that one or more of the containers to transport paper thus fall and deteriorate the contained merchandise and / or the container.

Preferably more than two adhesion elements and more than one tear element are present. These are advantageously configured so that by means of each of the adhesion elements the container opening can be closed. Thanks to each of the tear elements it is possible to open the opening, as long as it has been closed with a certain or one of a group of the adhesion elements present. In this way it is ensured that, regardless of the number of the tear-off elements and of the adhesion elements, the container can be used as frequently as there are separately activatable adhesion elements, through which the opening can be closed. In this way it is possible, for example, to generate a paper container, which can be closed, for example, three times, four times or five times and until the last time it can be opened again by means of a tear element respectively.

In a preferred configuration, an inner side of the container is coated with a cushioning material, in particular a fabric, a veil, a plastic or a sheet of air bubbles. Alternatively or in addition to this, patterned papers, metal or plastic grids, so-called "poly-woven" materials, which are composed of a woven plastic, coatings or leather, can be used. Due to the different materials, different properties can be achieved which, for example, are necessary for the protection of the objects to be transported. The different types of objects to be transported need protection of different intensity. Thus, for example, in the shipment of documents it is often enough to manufacture the container itself from a relatively stiff or stiff paper or cardboard material, while for example when using glass, for example, beverage bottles, requirements are clearly stated more elevated in the protection of the object to be transported. The specialist can select the optimum quilting material and padding type for the corresponding application purpose from a plurality of known materials and padding.

Preferably the container has a standing bottom, a crossed bottom or a bottom in the form of a flat folded tongue. Therefore, the container can be erected easily, so that packaging of an object to be sent in the paper container, in particular the paper bag, is also easily possible.

Thanks to the container according to the invention of paper an alternative to a shipping card is thus provided, the size of which can be adjusted individually to the size of the object to be transported, and which can be reused in spite of everything. This is advantageous in particular for shipments of the catalog sale sector, for example, in online ordering of objects, since they often have to be returned. The container according to the invention has advantages over all types of known containers, in particular for sale by catalog. It is stable, several times reusable, it can be manufactured economically and is respectful with the environment.

An exemplary embodiment of the present invention is explained in more detail below with the help of the attached figures. They show

Figure 1 - the schematic representation of a part of a paper container according to a first embodiment of the present invention, and

Figure 2 - the schematic representation of a part of a paper container according to another embodiment of the present invention in the open state.

Figure 1 shows a part of a paper container 1 according to a first embodiment of the present invention. It has a main part 2, which forms a cavity, in which you can put objects that must be transported. For this, the paper container 1 has an opening 4. In the exemplary embodiment shown in FIG. 1, a tongue 6 that can be folded down and thus closes the opening 4 is arranged on one side in the opening 4. A first adhesion element 8 and a second adhesion element 10 are arranged. These can be configured, for example, in the form of adhesive coatings coated with a foil or with activatable adhesives, ie in the form of adhesive strips. Between the first adhesion element 8 and the second adhesion element 10 a tear element 12 is located. This is limited by two perforation lugs 14, between which a reinforcement element 16 is placed.

Thanks to the activation of the first adhesion element 8, for example, by removing the foil cover or other activation of the adhesive strip, the opening 4 can be closed. In this respect, the first activated adhesion element 8 is placed in contact with the main part 2 of the paper container 1 and adheres therewith. In this way, the opening 4 is closed. In this respect, it is important that the second adhesion element 10 not be activated simultaneously as well, since it also comes into contact with the main part 2 and thus also clings to it. The second adhesion element 10 therefore remains non-activated.

If the opening 4 is now to be opened, the tear-off element 12 can be operated. To do this, the reinforcing element 16 is pulled out, which protrudes in the right-hand area of FIG. 1 on an edge 18 of the tab 6. In this way it tears the tongue 6 along the two perforation lugs 14, so that the opening 4 is accessible again. The first adhesion element 8 remains in the main part 2 of the paper container 1. An object, which has been transported or stored in the interior space of the main part 2, can now be removed or a new object inserted in the main part 2.

It is then possible to close the opening 4 again, while activating the second adhesion element 10. It also comes into contact with the main part 2 of the paper container 1 and leads to the closing of the opening 4.

In the embodiment shown in FIG. 1, the paper container 1 has two adhesion elements 8, 10, as well as a tear element 12 arranged in the middle. Naturally, embodiments with more than two adhesion elements are also conceivable, where between respectively two adhesion elements arranged adjacently, a tear-off element is present. In this way the paper container 1 can be closed several times, for example, three times, four times or five times, according to the number of the adhesion elements present. Thanks to the tear elements present, it can be opened several times according to the number of tear elements present.

In the embodiment shown it is irrelevant where the first adhesion element 8 or the second adhesion element 10 comes into contact with the main part 2 of the paper container 1, in order to close the opening 4. In particular for if, for example, smaller objects are to be transported or stored inside the main part 2 of the paper container 1, it is thus possible to bend the tongue 6 very far and thus reduce the remaining size of the container 1 now closed of paper.

In Figure 2 an opposite end of a paper container 1 is shown. It also has the main part 2, where in figure 2 a bottom 20 is now shown.

From the paper of the main part 2 a bottom 20 is folded, as this is known, for example, from the manufacture of paper sacks. In the representation shown in Figure 2, the bottom 20 is open, so that a view of the interior of the paper container 1 is made possible. To close the bottom 20, the upper part in figure 2 is folded around the fold line 22. This relates in particular to a cover sheet 24, which covers a notch 26, which is still present in the bottom 20 in the representation shown in Figure 2. Inside the main part 2 of the paper container 1 there is a separate paper 28, which can be seen through the notch 26 and is shown in points. Between the true paper of the main part 2 and the separate paper 28 is located a slit 30, through which air, for example, can exit from the main part 2 of the paper container 1.

If the bottom 20 is now finished, in which the cover sheet 24 is folded around the fold line 22, the cover sheet 24 is preferably glued on its entire periphery with the remaining fold elements which together form the bottom 20.

The covering sheet 24 has a handle 32, which is punched along two punching lines 34, which are shown in broken lines, starting from the covering sheet 24. In the closed state the air, which exits through the slot 30, can now leave the paper container 1 through these punching edges 34. In this way, the paper container 1 is prevented from exploding in the event of a sudden additional request. Instead, the air can leave the paper container 1 in the aforementioned manner.

List of references:

1 Container

2 Main part

4 Opening

6 Lengueta

8 First adhesion element 10 Second adhesion element 12 Tear element

14 Drilling line

16 Reinforcement element

18 Edge

20 Fund

22 Fold line

24 Cover sheet

26 Notch

28 Separate paper

30 notch

32 Handle

34 Punching line

Claims (9)

1. Container (1) of paper, in particular paper sack, which presents - one opening (4) - at least two adhesion elements (8, 10) for closing the opening (4), which can be activated separately, and - at least one tear element (12), - through which the opening (4) can be opened, when it has been closed with a first of the at least two adhesion elements (8) and - through which the opening (4) can not be opened, when it has been closed with a second of the at least two adhesion elements (10), characterized in that the container (1) has at least one handle (32) and a folded and bonded base (20), which is stabilized by a cover sheet (24), wherein the handle (32) is part of the cover sheet ( 24) and the handle (32) is punched or cut from the cover sheet (24). 2. Container (1) according to claim 1, characterized in that the at least two adhesion elements (8, 10) are coated adhesive strips or activatable adhesive strips, in particular, activated by moisture. 3. Container (1) according to claim 1 or 2, wherein the at least one tear element (12) is disposed between the at least two adhesive elements (8, 10). 4. Container (1) according to one of the preceding claims, wherein the at least one tear element (12) and at least two adhesive elements (8, 10) are arranged on a tab (6) of the container (1 ), which can be folded so that the opening (4) is covered. 5. Container (1) according to one of the preceding claims, characterized in that this has at least one vent path, through which air can escape from the container (1) when the opening (4) is closed. 6. Container (1) according to claim 5, wherein the at least one vent path runs along a separate paper (28). 7. Container (1) according to one of the preceding claims, characterized in that are present more than two adhesive elements (8, 10) and more than one tear element (12). 8. Container (1) according to one of the preceding claims, characterized in that an inner side of the container (1) is coated with a cushioning material, particularly a woven, a veil, a plastic sheet or air bubbles. 9. Container (1) according to one of the preceding claims, wherein the bottom (20) is a standing background or background or cross - shaped bottom flat folded tab.