WO2014207614A1

WO2014207614A1 - Method for attaching a handle to a pet container, a pet container equipped with a handle, and the use thereof

Info

Publication number: WO2014207614A1
Application number: PCT/IB2014/062332
Authority: WO
Inventors: René Wilhelm
Original assignee: René Wilhelm
Priority date: 2013-06-28
Filing date: 2014-06-18
Publication date: 2014-12-31

Abstract

The method is used to attach a handle to a PET container in the course of mechanically filling the PET container. The handle can be attached prior to, during, or after the filling process. A handle in the form of a PET film strip is attached to the PET container (1) preferably after the filling process in order to form a handle loop (2). For this purpose, a first end region of the PET film strip is attached to the PET container body (3), and the other end region of the PET film strip is attached farther up on the container body (3) or the container neck (7), thereby forming a handle loop (2) which projects from the PET container body (3). The PET container with said handle loop is characterized in that the handle loop (2) is formed by a PET film strip, both end regions of which are secured to the PET container body (3) and/or to the PET container neck (7), thereby forming a handle loop (2).

Description

Method for attaching a handle to a PET container as well as a container equipped with a handle and his

use

This invention relates to methods of attaching a handle to a PET container. In addition, the invention also relates to a PET container, which is equipped with such a handle, and finally the use of handles. PET containers, in particular PET beverage bottles are produced in various sizes, and in very large quantities. Worldwide, there are likely to be several hundred million bottles sold daily. Usual are 0.3-liter, 0.5-, 1-, 1.5-, 2- and 5-liter bottles, whereby also different liquid mass are used.

With the introduction of a 2-liter bottle in 1978 in the US by Coca-Cola, the PET bottle started her career worldwide. This PET bottle was equipped with a bottom shell made of other plastic material, so that the stability of the bottle at an internal pressure of 5 bar was secured despite the then unstructured bottom shape. In Europe, the introduction of the single-use PET bottle in 1987 followed as a so-called single-use bottle with a capacity of 1.5 liters. Then, in 1990, the self-advertisement "unbreakable" refillable bottle, also with a capacity of 1.5 liters, followed in the early 1990s, the technology of making single-piece bottles made only of PET, matured and available on the market Specifications for the shelf-life of drinks have resulted in the spread of the PET bottle on the markets, and technical advancements in the production of the PET bottle have resulted in both quality improvements, such as coating processes, production processes for producing the simplest possible bottles, and processes for the production of PET bottles Hot filling of juice products, as well as increased productivity in the production achieved, so that a more economical use of the raw material PET and energy savings in production have been made possible. In addition, the weight of a PET bottle of originally approx. 50-80g could be reduced to the usual weight of approx. 12g to approx. 35g depending on the volume and intended use (disposable, reusable bottle, hot filling).

However, this low weight is at the expense of stability. The larger the bottle and the more it is emptied, the more unstable the bottle body becomes due to the thin walls. When a half-empty 2-liter bottle is to be poured in a controlled manner, this often causes problems because the bottle body collapses and is squeezed together, with the risk that the contents will escape and spill unintentionally or uncontrollably through the open neck. From bottle sizes of 1.5 liters and more, children, the elderly, or weakened, disabled, or sick persons struggle with the one-handed hold and controlled pouring of the bottle.

The object of this invention is therefore to provide a solution to this problem and to provide a PET container, which is equipped by default with a handle, so that the PET container can be easily raised and its contents can be poured out controlled. The challenge is that such a handle can cost practically nothing and can be integrated into the sophisticated industrial production and filling processes. So it is not only the task to create a handle on, but an essential aspect of the invention relates to the method, as a handle can be cheaply applied to a PET container. It also belongs to the scope of the invention to assign new functions to a label on a PET container, namely first that of a handle for carrying and pouring the bottle, and secondly, to create additional advertising space, which is otherwise limited to the etiquette itself ,

This object is achieved, on the one hand, by a method for attaching a handle to a PET container, in which a handle is attached to the PET container to form a handle loop by attaching a first end region of a flat material strip to the PET container body, and the other end portion of the sheet of material to form a PET from the Container body protruding handle loop is fixed further above the container body or on the container neck.

The object is on the other hand solved by a PET container with handle loop, which is characterized in that the handle loop is formed by a flat strip of material, which with both end regions to form a Henkel loop on the PET container body and / or the pet container neck is fastened directly or indirectly via a label comprising the PET container body. The use of the PET container is that its handle loop is used by special imprints as an advertising medium or that its handle loop are used as puzzle pieces or collectibles with special imprints for creating an album.

In the figures, various embodiments of this PET container with handle loop are presented and in the description, the individual solutions are described and their preparation will be explained.

It shows:

Figure 1 shows a PET container in the form of a PET bag with welded or glued handle loop;

FIG. 2 shows a PET container in the form of a PET bag with a handle loop welded down or glued on top of the container neck;

3 rotates the PET container according to FIG. 2 by 90 ° in the clockwise direction, with the handle loop to be placed on top of the container neck just before slipping over;

Figure 4 shows the PET container of Figure 3 with the top of the

The container neck is turned up and the handle loop is hung on it;

Figure 5 shows a PET container in the form of a PET bag with a

Henkel loop, trapped under the label, or as an extension of a shrunk PET film label for slipping this Henkel loop on top of the container neck; FIG. 6 shows the PET container according to FIG. 5 rotated by 90 ° in the clockwise direction, with the handle loop to be placed on top of the container neck just before slipping over;

Figure 7 shows the PET container of Figure 5 with the top of the

The container neck is turned up and the handle loop is hung on it;

FIG. 8 shows a PET bottle with a PET film strip with holes in its end regions for slipping over onto the bottle body and bottle neck;

FIG. 9 The PET bottle according to FIG. 8 with attached handle loop;

Figure 10 A number of PET containers with handle loops seen from above and arranged in a star shape to each other for gripping and carrying with one hand;

Figure 1 1 A variant with Henkel loop as a bridge over a window of a

Shrinkable tube;

Figure 12 A variant with Henkel loop as an intermediate piece between two

Heat-shrink tubing sections;

FIG. 13 shows a variant with handle loop as part of a heat shrink tube

Section before its slipping;

Figure 14 The variant of Figure 13 after slipping, shrinking and

Punching out handle holes.

Figure 1 shows a simplest version of such a PET container 1 with screw cap 10 on the neck and equipped with a handle loop 2. As a special feature, the Henkel loop 2 made of PET film material as a flat strip of material. This makes it possible that the Henkel loop 2 can be attached as about 2cm to 6cm wide strip on the side of the container body 3 at the points indicated here with arrows. In the example shown, the PET container 1 is a PET bottle, but it may as well be a canister or any other shaped container. Instead of a PET film strip, however, a material strip made of another plastic can also be used, or about a strip of material of a texti Reinforced laminate of paper, cardboard or plastic, or even a synthetic textile tape or a band of natural fibers such as a linen tape. Of course, the band can also be a mixture of different natural and synthetic substances. The attachment of this handle loop 2 takes place at some point during the production and filling process of the PET bottles, before, during or after filling. Preferably, the attachment takes place immediately after filling and closing the bottles, before labeling, together with the labeling or after labeling. The attachment of the handle loop 2 can also be done only after the finished filling and labeling process, for example, at some point before the palletizing of the bottles. In the case of a PET film strip or a plastic strip, it is preferably welded to the container body 3 from outside by means of ultrasonic or thermal welding. Other strips of material, if they are not suitable for welding, can be glued to the bottle body by means of an adhesive. In the case of welding after filling the bottle, the liquid content of the PET container 1 helps to remove the heat from the welding site. The welding is done so that the film strips are fed by machine, then separated, and then mechanically pressed by means of an ultrasonic welding punch or by means of his heating punch on the PET containers. The two adjoining PET material surfaces of the Henkel loop 2 and the container body 3 are melted and fused with the action of pressure by means of the punch from the outside, that after pulling large tensile forces are absorbed. Instead of welding can also occur a bond. The film strips are fed in this case by machine, isolated, provided with a suitable adhesive and then mechanically pressed onto the PET container 1 and glued. This attachment method as well as the selected material of the Henkel loop 2 make it possible to integrate these Henkel loops 2 without significant additional effort in a production and filling line and still a very practical solution for carrying and pouring the PET bottles 1 or PET containers Offer. It is understood that these handle loops 2 can be attached to all kinds of PET containers, including larger canisters in the food and non-food sectors. FIG. 2 shows an alternative embodiment. Here, the Henkel loop 2 is a rectangular PET film strip of about 4cm to 6cm wide. At its upper end here, the PET film strip has a punched hole 4, which has been punched over a cross stamped previously by means of a knife cross. Thus, the punch hole 4 at its edge 6 radially outwardly directed incisions 5. Their function is clear from the following figures. FIG. 3 shows this PET bottle 3 with a rotary closure 10 according to FIG. 2 in a position rotated by 90 ° in the clockwise direction when viewed from above. As can be seen, the PET film strip 2 is welded or glued to the bottle body 3 at the point indicated by the arrow. The upwardly projecting film strip 2 is now placed as shown with the arrow in Figure 3 at the top over the screw cap 10 and container neck 7. This can be done by machine by means of a scraper, for example in the form of a brush, which moves in the image from left to right on the neck 7 and screw cap 10 while the PET film strip 2 with its hole 4 by widening thanks to the cuts 5 on the screw cap 10th and inverts the collar 8 at the nozzle 7. It then lends itself to the picture as shown in Figure 4. The hole 4 is narrowed again by its incisions 5 close elastically. Thus, the PET film strip 2 is suspended below the cantilevered collar 8 on the container neck 7 and held. The Henkel loop 2 is thus usable. The PET bottle 3 can be raised with one hand and like a pitcher, the contents can be poured out controlled.

FIG. 5 shows a further alternative embodiment. Here, the Henkel loop 2 is also a PET film strip, but this is just clamped under the label 9 here. Such labels 9 made of a thin PET film are pushed onto PET bottles as sleeve sections by default and then shrunk onto the bottle. They contract under the influence of heat and then enclose the bottle body 3 full and almost immovable. The Henkel loop, made approximately in the form of a PET film strip or other materials, is then strongly clamped under the label 9 so that it absorbs sufficiently strong tensile forces due to the adhesive and frictional force to safely lift the bottle and wear it , In another case, the Henkel loop forms an integral part together with a PET film label 9, so that the Henkel loop thus forms a strip which forms an extension from above the label 9. This PET etiquette will then be around Wrapped bottle body 3 and welded or glued to it, or slipped over and shrunk as a shrink tube. Finally, a solution can be realized in which a PET film strip is welded by an overlap with a PET film label. Thus, the Henkel loop 2 is connected by pulling force and shrinkage of the PET film label 9 or its welding or sticking at its lower end traction with the PET bottle. The upper end of the film strip is, as already described with reference to FIGS. 2 to 4, slipped over the rotary closure 10 and the container neck 7 so that its punched hole 4 hangs under the projecting collar 8 on the neck 7. Meanwhile, the upper end can be welded to the PET bottle body 3 instead of being pulled over the screw cap 10 and the nozzle 7 even in the upper area, or adhered and fixed thereto by adhesive.

[001 1] FIG. 8 shows another variant for a handle loop. This is made here of a dumbbell punched or cut film made of PET or other suitable plastic. Holes 4, 11 are punched out or cut out at both end regions, and at least one cut 12 is present from the edge of the hole 6 so that the holes 4, 11 can expand temporarily. The lower end region of the Henkel strip is then striped from below or above the bottle body 3 until it hangs on a specifically shaped constriction 13 or constriction 13 on the bottle body 3. The upper end of the Henkelstreifens is as already described on the screw cap 10 and the nozzle 7 slipped over the collar 8 and hangs below the same, as shown in Figure 9. This solution requires neither a welding nor a bond, but can be realized with purely mechanical Überstülp machines.

FIG. 10 also shows that a number of PET containers 1 or PET bottles 1 can be carried much easier with one hand, thanks to these handle loops 2. If the containers or bottles are arranged in a star shape relative to one another as shown, and the handle loops 2 are all directed towards the center, they can be grasped with one hand, and so four to five large PET bottles can easily be carried with a single hand even after being taken out of a six-pack. Especially at the canteen at canteens or at festive events this proves to be a big advantage for the service staff.

11 shows a further variant, which is even more cost-effective to produce and even more easily in the bottling plants is integrated into the production process. Here, the handle loop 2 is integrated as a bridge over a window 14 in an otherwise continuous shrink tube 9. The shrink tube 9 consists of a film material that is printed as a label in the flat state. The film material is then provided by punching with a window 14 and then rolled to a tube section and welded or glued. In the example shown, a handle loop 2 in the form of a strip of material, for example made of a strong film material, a texti Reinforced sheet material or a similar material welded or glued to this shrink tube 9 lengthwise. This strip of material for the later formation of a Henkel loop 2 can also form the seam directly to form the tube section from the flat shrink-film material, so that this strip of material overlaps the two successive longitudinal edges of the initially flat shrink tube material after rolling up and connecting them afterwards , In this case, the material strip for the handle advantageously extends over the entire length of the shrink tube 9. This shrink tube 9 is slipped over the bottle 1 in the course of filling the bottle 1 from above as shown by the arrow. The slipping can also be done from below. The bottle 1 equipped in this way then travels through an oven in which temperatures of around 80 ° C. prevail. Under this heat input shrinking tube 9 is shrunk, so contracts and laces the PET container body 3 of the bottle 1 as a corset. This also increases the stability of the bottle wall. The PET bottles 1 and the PET container body 3 can thereby be made if necessary with even thinner material. At the same time, the strip of material for forming a Henkel loop extends over the waisted point 15 on the bottle 1 and bridges it as a loose loop or in a tensioned shape - depending on the geometric design. In the entire region of the shrink tube 9, this conforms with its material closely to the outer wall of the PET container body 3 and the bottle 1 at. Finally, a handle is formed by the strip of material 2, which bridges the waist 15 in the axial direction, and at which the bottle 1 can be taken by grasping behind the handle with one or more fingers.

Figure 12 shows a variant with handle loop as an intermediate piece between two otherwise loose shrink tubing sections 9. In this embodiment, the upper and the lower shrink tubing section 9 can both be printed independently as a sheet material and prepared. They are then rolled to a section of shrink tubing and joined at the seams with a strong strip of material 2 connecting them, which then forms the handle, as shown in FIG. The two heat-shrinkable tube sections 9 are placed over one another from above or below over the bottle 1 or the PET container body 3 and, with subsequent heat action in an oven, they collect around the bottle 1 or the PET container body 3. By adjusting their distance from each other, the strip of material 2 can form a more or less outwardly bent handle loop.

FIG. 13 shows a further variant. Here, a material strip is integrated as a later retaining loop 2 in the material of a shrink tube section 9 or welded or glued to him. On both sides of the material strip lines of weakness 17 are punched here, for example by a perforation or by means of sections punched through, but this is not necessary in every case, as will become clear. This shrink tubing section 9 is preferably placed from below over the PET bottle 1 as indicated by the arrow in the production line. Of course, it can also be slipped over the bottle 1 from above. Thereafter, the shrinking tube section 9 is heated so that it constricts the PET bottle 1 corset-like, as shown in Figure 14. The strip of material now spans the waist 15 of the bottle 1. Holes 16 are now cut into the film material of the shrink tube 9 on both sides of the strip of material. If these holes 16 are defined by pre-cut lines of weakness 17, the sheet material covered by these lines of weakness 17 can be broken, for example, by suction-cup pistons radially against the bottle, sucking the broken-out sheet material against the pistons and sticking to them Retracting the pistons can be blown away from these. As a further variant, these grip holes 16 can also be removed by means of a guided laser Film material to be cut out. In this case, no pre-punching is necessary. In the case of a pre-punching, it is also conceivable that the film material surrounding the pre-punching is not broken at all, but this break-up is left to the customer, depending on whether he wants to use the handle function of the strip of material or not.

The present method for attaching a handle to a PET container and thus equipped PET container gives a conventional Schrumpfeti chain a new technical function. It becomes part of a handle, so that the PET container can be carried more easily and swiveled for pouring. At the same time, however, the etiquette with its handle is given another new function, because new advertising space is created, which is otherwise limited to a PET bottle to the pure etiquette. The etiquette becomes a handle and this becomes an advertising medium, or conversely, an advertising medium becomes a handle and this becomes part of the etiquette. This combination of handle and label thus creates new technical features. The handle loops are ideal for use as an advertising medium. They can be individually printed and are suitable as later removable parts of the bottle as a collector's items for an album. For example, on each handle strip, the likeness of an idol can be displayed, such as members of a football or basketball team, which can then be completed with the collection of Henkel loops, to create an album. Or other celebrities may be pictured, or the image of a product or any other image may be printed for a collection to be created, or to find out what the image is about, information may be imprinted on it, such as a mountain, a city, an animal, a plant, etc., which it recognizes. There are hardly any limits here for the separate use of these handle loops for promotional purposes. It can be competitions, raffles and puzzles put together by the individual Henkelstreifen puzzle pieces form.

Claims

claims

A method of attaching a handle to a PET container wherein a handle in the form of a sheet of material to form a handle loop (2) is secured to the PET container (1) by providing a first end portion of the sheet of material on the PET container body (3) is fastened, and the other end portion of the material strip is attached to the top of the container body (3) or to the container neck (7) to form a handle loop (2) projecting from the PET container body (3).

2. A method for attaching a handle to a PET container according to claim 1, characterized in that a flat strip of material as a handle loop (2) on a PET container body (3) with a tapered waist (15) is fixed by the strip of material on a shrink tubing section (9) extends in the axial direction, after which the shrink tubing section (9) is slipped over the PET container body (3) and then by heat the shrink tubing section (9) by shrinkage the PET container body (3) constricting corset, and then on both sides of the strip of material, a grip hole (16) cut out of the shrink tube section (9) or its edge is perforated, so that the material strip after opening the handle hole (16) forms a graspable behind Henkelschlaufe (2).

3. A method for attaching a handle to a PET container according to claim 1, characterized in that a flat strip of material as a handle loop (2) on a PET container body (3) with a tapered waist (15) is fixed by placing it on a shrink tube Section (9) with window (14) spans this window (14) in the axial direction as a bridge and is fastened with both ends on the shrink tube (9), after which the shrink tube section (9) slipped over the PET container body (3) is and then under heat, the shrink tube section (9) by Shrinking the PET container body (3) corset-like constricting, wherein the strip of material forms a grasping behind Henkelschlaufe (2).

4. A method for attaching a handle to a PET container according to claim 1, characterized in that a first end portion of the sheet strip of material as a handle loop (2) on a PET container body (3) with a tapered waist (15) is fixed by is attached to a shrink tube section (9), and the second end portion is also attached to a shrink tube section (9), after which the two shrink tube sections (9) are slipped with the material strip connecting them over the bottle (1) and then heat-shrink the heat shrink tube sections (9) by shrinking the PET container body (3) corset-like constrict, wherein the strip of material forms a grasping behind Henkel loop (2).

5. A method for attaching a handle to a PET container according to claim 1, characterized in that the strip of material is a PET film strip and the two end portions of the PET film strip after filling of the PET container (1) to form a container body (3) projecting Henkel loop (2) by means of each ultrasonic welding or thermal welding to the PET container body (3) are welded, the container contents is used for heat dissipation.

6. A method for attaching a handle to a PET container according to claim 1, characterized in that the two end regions of the material strip to form a PET container body (3) protruding Henkelschlaufe (2) by means of an adhesive on the PET container body (3). be glued.

7. A method for attaching a handle to a PET container according to claim 1, characterized in that the strip of material is a PET film strip or a plastic strip, and its first end region after filling of the PET container (1) on PET Container body (3) by means of Ultraschallweissung, thermal welding or by means of an adhesive on the bottle body (3) is fixed, and the upper end portion thereafter with a punched hole (4) with expansion slots (5) by machine over the screw cap (10) and nozzle (7 ) of the PET container (1), so that it hangs under a spigot collar (8) projecting from the neck (7) due to temporary widening of the hole (4) thanks to the expansion slots (5) and in this position forming and retaining a handle loop (2) protruding from the PET container body (3) ,

8. A method for attaching a handle to a PET container according to claim 1, characterized in that the strip of material is a PET film strip and is integrally connected to a PET label (9) so that it forms an extension of the same, and that PET label (9) wrapped around the PET container body (3) and welded or glued thereto, and that then the upper end portion of the PET film strip with a hole punched out therein (4) with expansion slots (5) by machine over the screw cap (10) and neck (7) of the PET container (1) is slipped so that it hangs under a at the nozzle (7) projecting nozzle collar (8) due to temporary expansion of the hole (4) thanks to the expansion slots (5) and in this Position forms from the PET container body (3) protruding handle loop (2) and is held.

9. A method for attaching a handle to a PET container according to claim 1, characterized in that the strip of material in the axial direction on the outside of the PET container body (3) is applied, and thereafter a shrink label (9) over its lower end portion is slipped and thereafter shrunk so that the lower end portion of the material strip from the shrink-label (9) is clamped to the PET container body (3), and the upper end portion with a punched-out hole (4) with expansion slots (5) by machine is slipped over the screw cap (10) and neck (7) of the PET container (1) so that it hangs under a spigot (8) projecting from the neck (7) due to temporary widening of the hole (4) thanks to the expansion slots (5) and in this position, a handle loop (2) projecting from the PET container body (3) is formed and held.

10. A method for attaching a handle to a PET container according to claim 1, characterized in that the strip of material in the axial direction on the outside of the PET container body (3) is applied, and thereafter a shrink label (9) via its lower end portion is slipped and this shrink-label (9) is shrunk afterwards, so that this lower End portion of the strip of material from the shrink-label (9) is clamped to the PET container body (3), and the upper end portion of the strip of material by Ultraschallweissung or adhesive to form a projecting from the PET container body (3) Henkel loop (2) on top of PET container (1) is attached.

1 1. PET container with handle loop according to one of the preceding claims attached to the PET container body, characterized in that the handle loop (2) is formed by a flat strip of material which with both end regions to form a Henkelschlaufe (2) on the PET container body (3) and / or attached to the PET container neck (7) directly or indirectly via a label comprising the PET container body.

12. PET container with Henkel loop according to claim 2 attached to the PET container body, characterized in that the Henkelschlaufe (2) is formed by a PET film strip as a material strip, which in one piece with a shrunk PET film label (9) on the PET Container body (3) is connected and extends axially along the same, wherein the PET film label on both sides of the material strip has a cut-out or pre-perforated handle hole (16), so that the material strip after opening the handle hole (16) as a handle loop (2) behind engaged is.

13. PET container with handle loop according to one of claims 6 to 10 attached to the PET container body, characterized in that the Henkelschlaufe (2) is formed by a PET film strip as a material strip, which with its first end by means of Ultraschallweissung, thermal welding or is attached to the PET container body (3) by adhesive or by entrapment under a shrink label, and its second end portion is secured to the PET container body (3) by ultrasonic welding, thermal welding or adhesive to form a handle loop (2) is, or by slipping over the screw cap (10) and nozzle (7) is attached to this.

14. PET container with handle loop according to claim 7 attached to the PET container body, characterized in that the handle loop (2) is formed by a PET film strip as a material strip, which with its first Endbereich by means of Ultraschallweissung, thermal welding or by means of adhesive to the PET container body (3) is attached, and its second end portion with a punched hole (4) with expansion slots (5) and with the same to form a Henkelschlaufe (2) via the screw cap ( 10) and PET container neck (7) is slipped so that the hole edge (6) below a cantilevered collar (8) is mounted on the container neck (7) and held.

15. PET container with handle loop according to claim 8 attached to the PET container body, characterized in that the handle loop (2) is formed by a PET film strip as a material strip, which with its first end portion in one piece with a shrunk PET film label ( 9) is connected to the PET container body (3) and extends upwardly from said PET foil label (9), while its second end portion is provided with a punch hole (4) with extension slots (5) and with the same under Forming a Henkel loop (2) on the screw cap (10) and PET container neck (7) is slipped so that the hole edge (6) below a cantilevered collar (8) is mounted and held on the container neck (7).

16. Use of a PET container with Henkel loop according to one of claims 1 1 to 15, characterized in that its handle loop (2) is used by special imprints as an advertising medium.

17. Use of a PET container with Henkel loop according to one of claims 1 1 to 15, characterized in that its Henkelschlaufe be used as puzzle pieces or collectibles with special imprints for creating an album.