WO2012167781A1

WO2012167781A1 - Method for producing tubular packaging

Info

Publication number: WO2012167781A1
Application number: PCT/DE2012/100167
Authority: WO
Inventors: Johann Beil
Original assignee: Linhardt Gmbh & Co. Kg
Priority date: 2011-06-10
Filing date: 2012-06-01
Publication date: 2012-12-13
Also published as: DE102011105273A1

Abstract

The invention relates to a method for producing tubular packaging (1) comprising: a tube shoulder (2), which is produced as a shaped part from a plastic material, preferably a thermoplastic material and which forms a tube opening (3); and a pipe- or hose-shaped tube body (5), the tube body wall (6) of which is produced from a flat material by rolling or folding, said tube body (5) being connected to the tube shoulder (2, 2.2) via an edge region (6.1) of the tube body wall (6).

Description

Method for producing tube packaging

The invention relates to a method according to the preamble

Claim 1 and to a tube packaging according to the preamble of claim 8.

Tubular plastic packaging (plastic tubes) are in

different versions known and basically consist of a tubular or tubular tube body and a as

Tubenschuiter manufactured molding made of plastic, which u.a. the

Tubenöffnung forms and removed with a tube opening Sieving Tubenschulterabschnitt in an open end of the tubular or tubular tube body and there in a suitable manner, for example by welding and / or using a bonding agent with the tube body or with its tube body wall is connected.

The object of the invention is to provide a method that soft the

Manufacture of tube packaging with improved properties allows. To solve this problem, a method according to claim 1 is formed. Produced by this method

Tube packaging are the subject of claim 8.

The invention is based on the finding that the connection between the tube body wall and the Tubenschuiter as well as the cut edge of the tube body wall forming sheet at the with the

Tubenschuiter connected edge area in particular influences such. exposed from the environment and are thereby impaired, such as the ingress of moisture, bacteria and / or germs, etc. This is increasingly true when at least one layer of the

Tubular body forming multilayer flat material of a not or difficult to elastically or permanently deformable and / or decomposable by external bacteria or germs material consists, for example of metal, but especially of a biological material and / or of a biodegradable material, such as paper, cardboard, biodegradable plastic, etc. Especially in these cases, influences from the environment can damage the tube packaging and / or an attractive optical

Appearance of the tube packaging while using this package lead, which is not desirable. These and others

Disadvantages that increasingly occur even when the tube body wall with its edge region when connecting to the tube shoulder on the

Outside of a cone-shaped Tubenschulterabschnittes is folded, are avoided by the sealing of the method according to the invention.

"Weldable materials" are in the context of the invention, in particular thermoplastic materials.

For the purposes of the invention, "non-weldable material" is to be understood in principle as those materials or materials which do not permit a material-bonding connection under the influence of heat, ie not thermoplastics, metals, biological materials such as paper, cardboard, etc. "Biodegradable material" in US Pat Meaning of the invention in particular means a material which can be decomposed by microorganisms, in particular by bacteria. A biodegradable material according to the invention is, inter alia, paper or cardboard and / or a and biodegradable plastic. For the purposes of the invention, "tube shoulder" is a molded part made of plastic, which is at least that which can be closed by a closure cap

Has tube opening and forms a conclusion of the tubular or tube-like tube body at one end of this tube body.

"Sealing" in the context of the invention is in particular the complete sealing, inter alia, of the edge or cut edge of the tube body wall forming flat material on the tube shoulder, optionally together with the sealing of a gap between this edge or cutting edge and the tube shoulder with a suitable material, preferably with a to understand thermoplastic plastic material.

The term "substantially" means within the meaning of the invention

Deviations from the respective exact value by +/- 10%, preferably by +/- 5% and / or deviations in the form of changes insignificant for the function,

In a further development of the invention, the tube packaging is designed, for example, as

the sealing takes place before and / or after and / or preferably during the joining of the tube body wall to the tube shoulder, and / or

that the sealing takes place under the action of heat,

and or

that the edge region of the tube shoulder wall on the outer surface of an angle with a longitudinal axis of the tube packaging

enclosing Tubenschuiterabschnitts, preferably in a local recess or depression is folded, and that there the

Sealing takes place,

and or in that the material of the tube shoulder, for example a material supply formed during production of the tube shoulder, eg in the form of a ring-like projection or bead, is used for the sealing, and / or

that the sealing effect material is applied before and / or during the sealing, for example in the liquid state or in the non-liquefied state,

and or

that by the use of a multilayer flat material for the tube body wall, wherein at least one layer of a non-weldable material, such as a non

weldable plastic, of metal, of a metal oxide, of silicon oxide, and / or of a material with a biological basis, for example of paper or cardboard, and / or of a biodegradable material, for example of paper, cardboard or a biodegradable plastic,

wherein the aforementioned features each individually or in any

Combination can be used. Further developments, advantages and applications of the invention will become apparent from the following description of

Embodiments and from the figures. All described and / or illustrated features are alone or in any

Combination in principle subject of the invention, regardless of their summary in the claims or their dependency. Also the half of the claims is made part of the description.

The invention will be described below with reference to the figures

Embodiments explained in more detail. Show it: Fig. 1 in a simplified representation of a tube package according to the invention;

FIG. 2 shows a detail of the tube shoulder of the tube packaging of FIG. 1; FIG.

Fig. 3 in an enlarged view a partial section through the

Tube body wall;

Fig. 4 u, 5 in an enlarged partial view the transition between the tube shoulder and the tube body wall forming

multilayer flat material before and after sealing the adjoining the tube shoulder and resting on this

Edge region of the tube body wall forming sheet.

The designated generally in the figures with 1 tube consists in

Essentially from a molded plastic part, such as PET or PP tube shoulder 2, which in the illustrated

Embodiment the tube nipple 2.1 and the subsequent and conically widening Tubenschu! Terabschnitt 2.2 with the

subsequent annular, the tube axis TA enclosing

Edge area 2.3 forms. The tube nipple 2.1 has the usual

Tube opening 3, which can be closed by a cap, not shown.

The tube 1 further consists of the tube body 5, the tube body wall or its 6 of a flat material by rolling this material and by connecting the adjacent one another

Flat edge areas is made. In the illustrated

Embodiment, the flat material 7 of four layers or layers 7.1 - 7.4, which are connected to each other surface using suitable adhesion promoters and at least partially consist of different materials, adapted to the respective function of the situation in question. The layer 7.1 forms in the illustrated embodiment The layer 7.1 is, for example, a decorative layer and the layer 7.1 is a barrier to oxygen and / or aggressive, recorded in the tube packaging 1 products (eg hair-dyeing agent) acting barrier layer, eg made of metal, for example aluminum or a Metallbzw. Aluminum foil and / or silicon oxide. Of the other inner layers 7.2 and 7.3, at least one consists of one

weldable plastic material (e.g., thermoplastic). Other versions of the multilayer flat material are possible. However, what is common is that at least one layer consists of a weldable plastic material and at least one layer of a non-weldable material, for example of a non-thermoplastic plastic, of a metal, of a material with biological basis, such. Paper, cardboard, or a biodegradable material or plastic.

Is the layer 7.4 of a material, such as metal or

Silica, which is blocking to oxygen and / or im

Tubular body recorded more aggressive products acts, so preferably the tube shoulder 2 is at least on their entire

Inner surface provided with a corresponding coating, the e.g. is applied by vapor deposition, chemical and / or electrical deposition, wherein this coating then preferably extends over the edge formed by the edge region 2.3 to the outside of this edge region into the recess 9.

The manufacture of the tube package 1 is carried out using the tube shoulder 2 and the tubular or tube-like tube body 4 such that the tube shoulder 2 is introduced with its edge region 2.3 in one of the open ends of the tube body 5 and then the corresponding

Edge region 6.1 of the tube body wall 6 on the outer surface of the Tubenschu! Terabschnittes 2.2 folded and there, for example, by welding and / or using a bonding agent 8 with the tube shoulder 2 with the outer surface of Tubenschuiterabschnitts 2.2 and the Randberelchs 2.3 is connected. To finish the job

Tube packaging 1 as smooth as possible or stepless transition between the outer surface of Tubenschuiterabschnitts 2.2 and the

Outside surface of the resting on a portion of the tube body section 2.2 Randberelchs 6.1 tube body wall 6 to reach the tube body section 2.2 is provided on its outer surface and in the vicinity of the transition to the edge area 2.3 with a tube axis TA annularly enclosing recess or recess 9, in which Edge region 6.1 and in particular also the edge 10 (cut edge) of the tube body wall 6 and the flat material 7 is received. In order to prevent ingress of water, moisture and / or other substances, for example oxygen from the environment at the edge 10, at which the layers 7.1 - 7.4 of the sheet material 7 are initially exposed, in and / or between these layers, before and / or or after and / or during the joining of the tube body wall 6 or the edge region 6.1 enclosed in the recess 9 and enclosing the edge region 2.3 a sealing of the edge 10 sealing 12) with a suitable thermoplastic material which is liquefied for sealing by heating and the Edge 10 of the sheet 7 and existing openings and / or gaps between the tube shoulder 2 and the edge 10 tightly seals, even any defects or gaps of the sheet 7 in the region of the edge 10th

This sealing is of particular importance if at least one layer of the flat material 7 consists of a material which is not or only with difficulty elastic or permanently deformable, for example of metal, but in particular of a material. on a biological basis, for example made of paper or cardboard, since this material inevitably tends to wrinkle when moving the edge region 6.1 on the tube body section 2.2, with the result of openings or gaps between the edge region 6.1 and the flat material 7 and the tube shoulder. The sealing of the edge 10 is furthermore of particular importance when at least one layer of the sheet material consists of a biodegradable material or of a material with a biological basis in order to prevent unwanted degradation of this layer and / or intrusion of the material

Moisture in this situation and thus to avoid destruction of the tube packaging and / or impairment of the visual appearance of the tube packaging during their use.

For the sealing of the edge 10 is preferred, the material of

Tube shoulder 2 used. This is for this purpose at the edge of the recess 9, against which rests the edge 10, formed with a material supply forming bead or projection 1 1, which surrounds the tube axis TA like a ring and its volume after siphoning completely or almost completely absorbed in openings or columns is present before sealing in the region of the edge 10 between the sheet 7 and the tube shoulder 2.

The invention has been described above with reference to an embodiment. It is understood that numerous changes as well

Modifications are possible. Thus, it is also possible, in particular, not to provide the volume of the sealing material necessary for the seal 12, or not only by the projection 11, but to apply instead of or in addition thereto before sealing,

for example, in that where the seal is necessary on the outer surface of the tube shoulder portion 2.2, the sealing material in the form of a band and / or ring of thermoplastic material is applied. Furthermore, the possibility of anti-microbial equip the tube body 5 and / or Tubenschulier 2, for example, by at least one corresponding coating and / or by inserting a corresponding active ingredient in the layers 7.1 - 7.4.

Bezugszeschenüste

Tube packaging or tube

2 tube shoulder

2.1 tube nipples

2.2 Tubular slide section

2.3 border area

3 tube opening

4, 5 tube body

6 tube body w

6, 1 edge region of the tube body wall

7 flat material

7.1 - 7.4 layers of the flat material 7

8 adhesion agents

9 recess

10 edge or cut edge of the flat material 7

1 1 lead

12 sealing

TA tube axis

Claims

claims

1 . Method for producing tube packaging (1) having a molded part made of plastic, preferably of thermoplastic

Plastic, manufactured and forming a tube opening (3)

Tube shoulder (2) and with a tubular or tubular

Tube body (5), the tube body wall (6) is made by folding or rolling of a flat material, wherein the tube body (5) with an edge region (6.1) of its tube body wall (6) with the

Tube shoulder (2) is connected,

characterized,

that the connection of the tube body wall (6) with the tube shoulder (2) and in particular also an edge or cut edge (10) of the flat material (7) in the region of this connection with a liquid and in gaps or spaces of the compound flowing and the edge (10 ) covering and solidifying material, for example with a

thermoplastic plastic material.

2. The method according to claim 1, characterized in that the

Sealing before and / or after and / or preferably during the joining of the tube body wall (6) with the tube shoulder (2).

3. The method according to claim 1 or 2, characterized in that the sealing takes place under the action of heat.

4. The method according to any one of the preceding claims, characterized

characterized in that the edge region (6.1) of the tube shoulder wall (6) on the outer surface of an angle with a longitudinal axis (TA) of the tube packaging (1) enclosing the tube shoulder portion (2.2), preferably in a local recess or depression (9) is transferred, and that there is the sealing.

5. The method according to any one of the preceding claims, characterized

characterized in that for sealing the material of

Tube shoulder (2), for example, one in the manufacture of

Tube shoulder (2) formed material supply (1 1), e.g. is used in the form of a ring-like projection or bead.

6. The method according to any one of the preceding claims, characterized

characterized in that the material causing the seal (12) is applied before and / or during sealing,

for example, in the liquid state or in the non-liquefied state.

7. The method according to any one of the preceding claims,

characterized by the use of a multi-layered

Flat material (7) for the tube body wall (6), wherein at least one layer of a non-weldable material, for example of a non-weldable plastic, of metal, of a metal oxide, of silicon oxide, and / or of a material having a biological basis, for example Paper or cardboard, and / or of a biodegradable material, for example of paper,

Cardboard or a biodegradable plastic.

8. tube packaging, in particular tube, characterized by their production by the method according to any one of the preceding claims.