DE102011012751B4 - Process and plant for the production of containers filled with a liquid product - Google Patents

Abstract

Process for the production of filled containers (2) from preforms (3) made of a thermoplastic material, the respective preform (3) being at least thermally conditioned and finally in a mold (4.1) by the action of pressure during a molding and filling phase (I) in a mold (4.1) Filling material is reshaped in the respective container (2) at a form and filling pressure (p1), characterized in that the filling material is heated to a sterilization temperature for hot-sterile filling and, after completion of the forming and filling phase, to the sterilization temperature during a sterilization phase (III) this temperature is maintained between an upper limit value (T1) and a lower limit value (T2).

Description

The invention relates to a method according to the preamble of claim 1 and a system according to the preamble of claim 9.

It is known to produce containers by blow molding from preforms made of a thermoplastic material, for example preforms made of PET (polyethylene terephthalate), the preforms being fed to different processing stations within a blow molding machine (US Pat. DE 43 40 291 A1 ). Typically, a blow molding machine has a heating device for tempering or preheating (thermal conditioning) of the preforms as well as a blowing device with at least one blowing station, in the region of which the respective previously tempered preform is biaxially or multiaxially expanded to form a container. The expansion takes place with the aid of a compressed gas (compressed air) as a pressure medium, which is introduced with a molding pressure in the preform to be expanded. The procedural sequence in such an expansion of the preform is in the DE 43 40 291 A1 explained.

The basic structure of the blowing station is in the DE 42 12 583 A1 described. Possibilities of tempering the preforms are in the DE 23 52 926 A1 explained.

According to a typical further processing method, the containers produced by blow molding are fed to a subsequent filling device and filled here with the intended product or filling material. Thus, a separate blowing machine and a separate filling machine are used. It is also known, the separate blowing machine and the separate filling machine to a machine block, d. H. to summarize a blocked blow-filling device, wherein further the blow molding and filling on separate machine components and in succession.

It has also been proposed to produce containers, in particular also in the form of bottles from thermally conditioned or preheated preforms, while at the same time filling them with a liquid product which is used as a hydraulic pressure medium for expanding the preform or for molding the container with a molded product. and filling pressure is supplied, so that at the same time as the filling of the respective preform is deformed into the container. Such methods are for. B. from the WO 2007/120 807 A2 and the US 2005/0 206 045 A1 known. A certain problem with such methods is that contamination of the respective forming and filling station or the station forming this station, which is similar to a blow mold of a blow molding machine for producing containers of thermally conditioned preforms by blowing with a pressurized gas can be avoided got to. Especially in the case of full or partial carbonation of the contents there is a particular risk of contamination of the respective mold and filling station by Füllgutverluste, especially in the reduction of the internal pressure of the container, ie in the discharge of the container from the fairly high forming and filling pressure to the ambient pressure. Such product losses are in particular due to a massive foaming during unloading, so that the simultaneous molding and filling of containers using preforms and using the filling material as a pressure medium (hydraulic molding), especially for CO2-containing products could not be used. From the DE 10 2006 019 390 A1 For example, a method for filling and then sterilizing containers by a heatable mold is known. The DE 195 20 925 A1 describes a method for low-germ filling of plastic bottles with low heat resistance.

The object of the invention is to provide a method for simultaneously forming and filling containers in such a way that the filled in the respective filled and sealed container contents have a high durability. To solve this problem, a method according to claim 1 is formed. A plant for producing filled with a container containers by simultaneous molding and filling is the subject of claim 9.

The term "essentially" or "approximately" in the sense of the invention means deviations from respectively exact values by +/- 10%, preferably by +/- 5% and / or deviations in the form of changes insignificant for the function.

For the purposes of the invention, "sterilization temperature" is a temperature, for example, depending on the nature of the contents in the range between 70 ° C. and 95 ° C. or in the range between 70 and 140 ° C., in any case a temperature which, taking into account the Type of contents and duration of sterilization phase, d. H. the holding time over which the sterilization temperature of the container and of the contents filled therein is maintained, ensures the desired and / or required quality of the sterilization (sterilization rate) and thus the desired and / or required shelf life of the filled filling material.

For the purposes of the invention, the term "upper limit value" of the sterilization temperature is to be understood as meaning the temperature which, for example, also takes into account, taking into account the nature of the contents and the duration of the sterilization phase as a maximum Sterilization temperature still causes no or substantially no impairment of the quality of the filling, especially the taste quality of the contents.

For the purposes of the invention, the term "lower limit value" of the sterilization temperature means the temperature below which, for example, taking into account the nature of the contents and the duration of the sterilization phase, no or substantially no effective sterilization of the contents and the container, in particular the Container interior surface can be achieved more, the lower limit of the sterilization temperature z. B. corresponds to about 85% to 95% of the upper limit of the sterilization temperature.

Under "hot circulation" in the context of the invention is the at least one reservoir or boiler for the provision of the filling enclosing Füllgutzirculation or a corresponding Füllgutkreislauf to understand in which is provided for heating and holding the contents on a Füllgutausstemperatur a heater that the contents of fed to the reservoir and from which the heated product is returned to the reservoir.

For the purposes of the invention, "hot aseptic filling" or "hot-sterile filling" is understood in particular as forming and filling the containers in such a way that the contents are heated by heating to a sterilization temperature and by holding at this temperature or a temperature above a lower limit Sterilization temperature for a short period of time, for example, for a period of only a few seconds, z. B. over a period of about 2-4 seconds before and / or after the closure of the respective container is sterilized, in such a way that the respective container on its inner surface and filled in the closed container contents the required rate of germ reduction (germ reduction value) and so that the required durability has. The contents are preferably introduced in the heated or preheated state with a Füllgutaustemperatur in the preform or in the forming container, wherein the Füllgutaustemperatur is preferably below the sterilization temperature and z. B. only about 65% to 75% of the upper limit of the sterilization temperature or about 70% to 80% of the lower limit of the sterilization temperature.

Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures. In this case, all described and / or illustrated features alone or in any combination are fundamentally the subject of the invention, regardless of their summary in the claims or their dependency. Also, the content of the claims is made an integral part of the description.

The invention will be explained in more detail below with reference to the figures of exemplary embodiments. Show it:

1 a schematic representation of a plant according to the invention for producing filled and sealed containers;

2 in a simplified individual representation and on average a preform (preform) together with a stretch rod or a stretching rod having part of a forming and filling station of a molding and filling machine of the system 1 ;

three in a temperature-time diagram, the course of the product temperature in a conventional method for hot sterile filling of a filling material using conventional filling machines;

4 u. 5 in each case in a temperature-time diagram, the temperature profile during the molding and filling process according to the invention;

6 in a simplified schematic representation again the plant of 1 for forming and filling containers.

The in the 1 generally with 1 designated plant is used to produce filled and sealed containers 2 in the form of bottles using preforms three (Preforms) made of a thermoplastic material, such as polyethylene terephthalate (PET), polyethylene (PEE), polyethylene naphthalate (PEN) or polypropylene (PP). The preforms three are formed in a known manner sleeve-like with an open, the subsequent container mouth forming end, with a closed, the bottom of the container forming bottom and with a flange forming the later Mündungsflansch.

Basically, the production of filled and sealed with a liquid filling container 2 in the way that each conditioned, ie preheated and in a closed form 4.1 a form and filling station 4 arranged preform three is acted upon by the standing under high molding and filling pressure and heated for a hot sterile filling contents, so that the respective preform three in a molding and filling process by this filling hydraulically into the respective container 2 is deformed. The thus shaped and at the same time filled container 2 is then after its discharge from the forming and filling pressure (for example, between 8 bar and 15bar) sealed to ambient pressure, ie at its container mouth 2.1 with a closure element 5 , For example, provided with a cap-like closure element. Subsequently, the sealed container 2 for further sterilization of the contents and the container interior heated to a sterilization temperature which is higher than the temperature of the contents during the molding and filling process, as will be described in more detail below.

To carry out this process, the plant includes 1 including a device 6 who prefers the preforms three about one in the 1 feeders not shown are fed according to the arrow A and at an outlet the conditioned preforms three ie the preheated and at the same time also sterilized and dried preforms in the illustrated embodiment three provides. The device 6 has a heating section for this purpose 7 on, in which the preheating of the preforms takes place, for example by IR emitters, NIR emitters, etc. Further takes place in a further section 8th the device 6 an impingement of the heated preforms three with a heated gas and / or vapor sterilization medium, for example with a heated and / or vaporous, hydrogen peroxide-containing sterilization medium. In another section 9 the device 6 Then, using hot sterile air, activation of the sterilization medium and drying of the conditioned and sterilized preforms three , These are then via a transport path, not shown, corresponding to the arrow B a Preformeinlass a forming and filling machine 10 fed.

The forming and filling machine 10 includes, for example, one on a machine frame 11 rotatably mounted and about a vertical machine axis MA circumferentially drivable rotor 12 , which in the basic representation of the 1 is indicated as a block. On the rotor 12 are distributed at equal angular intervals around the machine axis and at the same radial distance from this machine axis several forming and filling stations 4 each with a shape 4.1 intended. Furthermore, in the illustrated embodiment, the rotor 12 three ring machines concentrically surrounding the machine axis MA 13 - 15 provided, of which during operation of the forming and filling machine 10 the outer, larger volume ring bowl 13 with the under a filling and molding pressure p1 and a Füllgutaustemperatur TK1 having first component K1 of the liquid filling material and of the ring boiler 13 enclosed ring bowl 14 are filled with the smaller volume with the also under the filling and molding pressure p1 standing and a Füllgutaustemperatur TK2 having second component K2 of the filling material. For example, the product outlet temperature TK1 is higher than the product outlet temperature TK2. The in the representation of the 1 below the ring bowl 13 and 14 arranged and serving as a discharge channel, empty ring boiler 15 contains an inert gas, eg. B. sterile air, a CO2 gas, etc. and is acted upon by the discharge pressure p2, which is significantly smaller than the filling and molding pressure p1. The components K1 and K2 are identical in terms of the contents and differ, for example, only by the Füllgutaustemperaturen TK1 and TK2.

The preferably thermally insulated boiler 13 and 14 are only partially filled with the components K1 and K2, so that in the ring boilers 13 and 14 in each case a lower liquid space and above a gas space is formed, which is filled with a standing under the filling and molding pressure p1 inert gas, for example CO2 gas, which via a rotary feedthrough 16 having inert gas compound 17 one in the machine frame 11 housed inert gas storage tank 18 provided. The reservoir 18 The inert gas from an inert gas source, not shown via a compressor 19 fed, in such a way that in the inert gas reservoir 18 and thus also in the gas chambers of the ring boiler 13 and 14 the filling and molding pressure p1 is maintained at the required level or kept constant. The necessary control of the compressor 19 via a control device 20 depending on pressure sensors 21 that the pressure in the ring boilers 13 and 14 to capture. The filling level in the boilers 13 and 14 is kept constant by level control. The product outlet temperatures TK1 and TK2 are maintained at the required level or kept constant. The necessary control or regulation also takes place via the control device 20 depending on temperature sensors 22 , which determines the temperature of the contents in the ring boilers 13 and 14 capture and their measurement signals cause appropriate measures for temperature control or regulation, for example, regulate heaters and / or a heater having a hot circulation of the contents and / or control.

To maintain a constant pre-relief pressure p2 in the ring bowl 15 this is about another, the rotary feedthrough 16 enclosing inert gas compound 23 also with the inert gas reservoir 18 connected. In the inert gas connection 23 is a control valve 24 intended. Another control valve 25 is located in a vent line 26 of the ring bowl 15 , Both control valves are from the control unit 20 depending on a pressure sensor 27 that the internal pressure of the ring boiler 15 recorded, so controlled that in the ring boiler 15 constantly a Pre-discharge pressure p1 corresponding inert gas pressure prevails.

The ring kettles 13 . 14 and 15 are natural for all forms 4.1 or for all forms and filling positions of the forming and filling machine formed by these shapes 10 provided jointly, the ring boiler 15 represents an additional optional equipment of the forming and filling machine.

Every shape 4.1 is in its interior or in its shape space, inter alia, with a stretch rod 27 formed, which is oriented with its longitudinal extent or axis RA parallel to the vertical machine axis MA and by a drive, not shown, for. B. cam synchronized with the rotational movement of the rotor 12 is axially movable, so when molding the respective container 2 from the conditioned preform three the stretching rod extending into this preform 27 with its lower, preferably rounded Reckstangenende 27.1 against the bottom of the preform three is thereby stabilized and thereby assisted by the over the stretch rod 27 in the preform three introduced contents with the filling and molding pressure p1 increasingly into the container 2 stretches, the outer shape then through the inner surface of the mold 4.1 is formed.

As the 2 shows, is the respective preform three inside the mold 4.1 in sealing position on a bearing head 29 That is, it lies with its open, the subsequent container mouth forming end of a seal 28 sealed and pressed against a bearing head 29 in which the stretch rod 27 with a ring seal 30 sealed axially guided.

In the stretch rod 27 is co-ordinate with the axis RA a channel 31 formed above the end 27.1 a plurality of radial outlet openings 32 has and in the front of the outlet openings a check valve 33 with ball 34 and compression spring 35 is provided. The channel 31 sits down at its end remote from the outlet openings in a fluid connection 36 continue, including the interlock and diverter valves 37 and 37.1 contains, over which the channel 31 optionally with the liquid space of the ring bowl 13 or the ring bowl 14 connected and the connection between the channel 31 and the two ring boilers 13 and 14 controlled can be interrupted.

In the camp head 28 is a return gas channel 38 trained, the stretching rod 27 annularly encloses and also in the interior of the in sealing position on the bearing head 28 arranged preform three or in the interior of the bearing head 29 opens in sealing position container. The return gas channel 38 is over a a control valve 39 having return gas line with the ring boiler 15 connected. The fluid connection 36 with her z. B. from the controller 20 controlled blocking and switching valve 37 as well as the return gas line 40 with her also from the controller 20 controlled control valve 39 are for every molding and filling station 4 provided separately and individually controllable.

The filled container 2 is at a container outlet of the molding and filling machine 10 from the camp head 29 removed and by means of a in the 1 not shown transporters according to the arrow C of a device 41 for closing the containers 2 with the locks 5 fed. The filled and sealed containers 2 be with one in the 1 not shown conveyor according to the arrows D and E to a pasteurizer 42 and from this, for example, to a labeling machine of the plant 1 forwarded

With the form and filling machine 10 are a variety of methods for molding the container 2 and sterile filling of products is possible, with all methods having in common that the temperature of the filling material during the molding and filling phase is significantly below the respectively required sterilization temperature, preferably also both Füllgutausgangemperaturen TK1 and TK2, and that heating of the filling material on the sterilization temperature only takes place after expiration of the molding and filling phase, and as short as possible, so that with sufficient quality of sterilization deterioration of the quality, especially the taste quality of the filling material does not occur.

When in the 1 shown plant is in the fluid connection 36 in the flow direction after the blocking and switching valve 37.1 and in front of the stretch rod 27 a heating device 43 intended. Other heating devices 44 are in the product or product lines 45 provided over the contents of the ring boilers 13 and 14 is supplied. The two product lines 45 are in the flow direction of the filling material in front of the respective heating device 44 via a blocking and switching valve 46 connected to an external storage tank, not shown for the contents or a system for providing the contents. By appropriate control of the blocking and control valve 46 During the forming and filling operation, the degree of filling of the ring bowl 13 and 14 or the local level of Füllgutspiegels kept constant or substantially constant.

The three shows in a temperature-time diagram the typical temperature profile 47a the filling material in a hot aseptic filling in a conventional filling method. The filling material is provided for the filling with an initial temperature T0, which is well above the upper limit T1 of the sterilization temperature necessary for the respective targeted sterilization rate or the desired quality of sterilization (time interval I). During filling, ie in the time interval II, the product temperature drops to the upper limit value T1 of the sterilization temperature and then subsequently to the lower limit value T2 during the sterilization or holding phase, ie in the time interval III. The sterilization temperature or its limits T1 and T2 as well as the duration of the sterilization phase III determine the respectively achievable sterilization rate or quality of sterilization and z. B. depending, inter alia, on the nature of the respective contents. In a cooling phase IV then the container and the contents are cooled to the ambient temperature Tu. The closure of the respective container takes place after completion of the filling process, ie after the expiration of the time interval or the filling phase II. The sterilization during the time interval or during the sterilization phase III takes place at least partially in a Pasteurisiereinrichtung in which each filled and sealed container on the required temperature is maintained or maintained at the required sterilization temperature for the necessary treatment time or warm or hot holding time, for example, by overflowing the closed container with heated water. Likewise, the cooling of the container takes place in the cooling phase IV in the pasteurizer, for example, by overflowing the respective container with cold water.

The 4 shows the basic temperature-time history 47 of the contents during the process according to the invention. The filling material is provided with the initial temperature T0 and at this temperature during the molding and filling phase I in the respective preform three or in the forming container 2 introduced with the molding and filling pressure p1. This initial temperature T0 is well below the lower limit T2 of the sterilization temperature and is, for example, the product outlet temperature TK1 or TK2 and / or by heating with the heater 43 and / or adjusted by appropriate mixing of the components K1 and K2 with the respective different product outlet temperature TK1 and TK2.

After completion of the molding and filling phase takes place in a heating or heating phase II, an increase in the temperature of the contents of the temperature T0 to an upper temperature T1, which corresponds for example to the upper limit of the sterilization temperature, but in any case above the lower limit T2 Sterilization temperature is, partly due to a heat accumulation in each filled container 2 after completion of the molding and filling phase I, in particular during the discharge of the respective container 2 to ambient pressure before closing with the closure or with the cap 5 , but especially due to treatment of the filled and sealed container 2 in the pasteurizer 42 , During the time interval or during the sterilization phase III, the duration of the desired sterilization rate or quality of sterilization is selected accordingly, the temperature of the filling drops from the upper temperature T1 to the lower limit T2 of the sterilization temperature. The filled sealed container 2 is here in the pasteurizer 42 , Following this, the filled and sealed container 2 within the time interval IV, for example in the pasteurizer 42 cooled to ambient temperature.

A particular advantage of the method or the in the 4 reproduced temperature profile is that the contents in the ring boilers 13 and or 14 is kept ready with a Füllgutaustemperatur TK1 and / or TK2 below the upper limit T1 and also during the molding and filling phase I, the relatively low temperature T0, while the much higher sterilization temperature limited to the relatively short time interval of the heating phase II and the sterilization phase III is. Impairment of the quality, in particular the taste quality of the filling, resulting from high Füllguttemperaturen and long residence times of the contents at such temperatures and are often perceived as unpleasant cooking taste are completely or at least substantially avoided.

The provision of the filling thus takes place in the inventive method at the temperature T0, which is well below a temperature that could cause a change in the taste of the filling material, but at a high forming and filling pressure.

By using the two ring bowls 13 and 14 but it is particularly possible to keep this ring vessel or the existing there contents with different shape and filling pressure p1, for example at the same Füllgutaustemperatur TK1 or TK2 or at different Füllgutausgangstemperaturen TK1 or TK2, with one, for example higher forming and filling pressure for the initial stretching and preforming of the respective container 2 and with the reduced forming and filling pressure for the final molding of the respective container 2 ,

In the invention at the beginning of the sterilization phase III, the temperature of the respective container 2 and thus also the temperature of the filling material in the container 2 recorded and thus the temperature T0 and / or the heating of the respective container 2 is controlled during the heating phase II such that the sterilization temperature required for the sterilization or sterilization is achieved at least between the limit values T1 and T2. The control of the temperature T0 takes place at different Füllgutausgangstemperaturen TK1 and TK2 by mixing the components K1 and K2 and / or by the heater 43 For example, for every molding and filling station 4 is provided separately, but with appropriate arrangement in the fluid connection 36 also for all form and filling stations 4 or may be shared by a group of several such stations.

By the pressure relief of the respective container after completion of the molding and filling phase of the high forming and filling pressure of z. B. up to 15 bar to ambient pressure builds up a build-up of heat, which is degraded only after closing, so that the sterilization temperature actually sets only at the beginning of the sterilization phase III.

The 5 shows in a temperature-time diagram the course 47 the temperature of the contents or the respective container 2 in a modified embodiment of the method according to the invention. The temperature course of the 5 differs from the temperature history of 4 essentially only in that, during the sterilization phase III, the temperature of the filling material initially drops from the upper temperature value T1 (eg upper limit value), then over a partial phase of the sterilization phase III 47.1 is kept constant or substantially constant at a temperature between the upper temperature value T1 (eg upper limit value) and the lower limit value T2, whereupon the temperature of the contents then at the end of the sterilization phase III to the lower limit value T2 of the sterilization temperature drops. In the cooling phase IV, the cooling of the respective container takes place again 2 and the contents to the ambient temperature Tu.

The 6 shows the plant 1 again in a simplified functional representation. Shown is the attachment 1 with the forming and filling machine 10 , with the closing machine or device 41 for closing the deformed and filled containers 2 , with the pasteurizer 42 , which is shown in more detail, as well as with a trained as a conveyor belt conveyor 48 for transporting the containers 2 through the various stations of the plant 1. In the in the 6 The illustrated embodiment comprises the pasteurizer 42 at least two in the transport direction (arrow F) of the transporter 48 successive sections, the section 48.1 , at the inlet of which means for transferring the sealed container 2 is provided so that this through the section 48.1 transported with their container axis perpendicular to the transport direction F and horizontally or substantially horizontally oriented and heated in this position for sterilization, ie, for example, be acted upon by the heat energy of a heat source and / or with a hot vaporous and / or gaseous and / or liquid medium. When transporting through the section 48.1 become the containers 2 preferably shaken at the same time and / or rotated about its container axis and / or rolled. At the outlet of the section 48.1 is a facility 50 provided with the containers 2 for further transport through the section 42.2 the pasteurizer 42 be set up again so that they are oriented with their container axis again in the vertical direction.

In the section 42.2 cooling takes place (cooling phase IV of 4 and 5 ) of the sealed container 2 For example, by applying or overshooting with a liquid cooling medium, for example water.

The transporter is preferred for transporting the containers 2 but no conveyor belt, like this in the 6 is shown schematically, but the feed dog is for holding or gripping the container 2 in the area through the respective closure 5 sealed container mouth or the local container flange, so that the folding of the container at the beginning of the section 42.1 and the re-erection of the containers at the end of this section by controlled pivoting container carriers on the conveyor or on a transport element of the transport device takes place.

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the invention.

LIST OF REFERENCE NUMBERS

1

investment

2

container

2.3

Mündungsflansch

3

preform

4

Forming and filling station

4.1

shape

5

shutter

6

Device for conditioning the preforms three

7

heater

8, 9

Section of the institution 6

10

Forming and filling machine

11

machine frame

12

rotor

13, 14, 15

ring bowl

16

Rotary union

17

Inert compound

18

Inert gas reservoir

19

compressor

20

control device

21

pressure sensor

22

temperature sensor

23

Inert compound

24, 25

control valve

26

vent line

27

stretching rod

27.1

rounded rod end

28

ring seal

29

bearing head

30

ring seal

31

Channel in the stretch rod 27

32

outlet opening

33

check valve

34

Bullet

35

feather

36

fluid communication

37, 37.1

Lock and changeover valve

38

Return gas channel

39

control valve

40

Return gas line

41

Device for closing

42

Pasteurizer or unit

42.1, 42.2

Section of the pasteurizer

43, 44

heater

45

management

46

Locking and control valve

47, 47a

Temperature profile of the filling material or the respective container

47.1

Area

48

transport means

49

Device for transferring the containers 2

50

Device for setting up the containers 2

A, B, C

Transport direction of the preforms three

D, E, F

Transport direction of the containers 2

Ma

machine axis

RA

Stretching rod axis

Claims (14)

Process for producing filled containers ( 2 ) from preforms ( three ) of a thermoplastic material, wherein the respective preform ( three ) at least thermally conditioned and finally during a molding and filling phase (I) in a mold ( 4.1 ) by pressure of a supplied filling material in the respective container ( 2 ) is shaped at a molding and filling pressure (p1), characterized in that the contents for hot sterile filling heated to a sterilization temperature and after completion of the molding and filling phase during a sterilization phase (III) on the sterilization temperature between an upper limit (T1) and a lower limit (T2) of this temperature is maintained. A method according to claim 1, characterized in that the filling material during the molding and filling phase (I) in the respective preform ( three ) or in the forming container ( 2 ) with an initial temperature (T0) which is higher than the ambient temperature (Tu), but lower than the sterilization temperature or its upper and lower limit (T1, T2), and that the heating of the contents and the container (T0) 2 ) to the sterilization temperature between the upper and lower limit values (T1, T2) of this temperature or to the upper limit value (T1) of the sterilization temperature only after completion of the molding and filling phase (I), for example at least temporarily during a relaxation of the shaped and filled one Container ( 2 ) from the forming and filling pressure (p1) to ambient pressure. A method according to claim 1 or 2, characterized in that the heating of the respective container ( 2 ) and of the contents filled in these to the sterilization temperature and / or the holding of the container ( 2 ) and the contents at the sterilization temperature or between the upper and lower limits (T1, T2) of the sterilization temperature after closing the molded and filled container ( 2 ) respectively. Method according to one of the preceding claims, characterized in that the heating to the sterilization temperature in the heating phase (II) and maintaining at the sterilization temperature or between the upper and the lower limit (T1, T2) of the sterilization temperature during the sterilization phase (III) at least partially in a pasteurizer ( 42 ) respectively. A method according to claim 1, characterized in that the filling material in a first partial phase of the molding and filling phase (I) in the preform ( three ) or in the forming container ( 2 ) for stretching and preforming with a first molding and filling pressure (p1) and in a further subphase of the molding and filling phase (I) into the molding container ( 2 ) is introduced for a final molding with a second, different from the first molding and filling pressure (p1), wherein the second forming and filling pressure is preferably greater than the first forming and filling pressure. Method according to one of the preceding claims, characterized in that the sterilization temperature is set by the pressure relief and / or by mixing Füllgutkomponenten (K1, K2) with different temperatures (TK1, TK2) and / or by heating the filling material, preferably by Adjustment and / or regulation of the temperature (T0) of the filling material during the forming and filling phase (I). Method according to one of the preceding claims, characterized in that the temperature of the filling material, for example the temperature (T0) of the filling material during the molding and filling phase (I), in dependence on a container outside temperature, the container ( 2 ) at the beginning of the sterilization phase (III), and / or is controlled and / or regulated as a function of the course of the container external temperature in a heating phase (II) preceding the sterilization phase (III). Method according to one of the preceding claims, characterized in that the filling material consists of a single component or of at least two different components (K1, K2). Plant for the production of containers filled with a liquid product ( 2 ) from at least thermally conditioned preforms ( three ) of a thermoplastic material, with a forming and filling machine ( 10 ), the at least one forming and filling station ( 4 ) and with at least one liquid compound ( 36 ) for controlled feeding of the containers ( 2 ) forming and to be filled into this filling material from at least one of this filling material under a form and filling pressure (p1) containing filling vessel ( 13 . 14 ), wherein the forming and filling station ( 4 ) at least one outlet opening ( 32 ) for discharging the filling material during a molding and filling phase (I) into the contact surface ( 27 . 28 ) of the forming and filling station ( 4 ) in a sealing layer arranged preform ( 2 ) or in the forming from this container ( 2 ), characterized in that for hot aseptic filling the container ( 2 ) Means for heating the respective container ( 2 ) and of the filled in this filling material in at least one heating phase (II) to a sterilization temperature after completion of the molding and filling phase (I) are provided. Plant according to claim 9, characterized in that the at least one product vessel ( 13 . 14 ) and / or the liquid compound ( 36 ) for providing the contents with a controlled or controlled starting temperature (T0), preferably with an initial temperature (T0) which is greater than the ambient temperature (Tu) but less than the sterilization temperature. Plant according to claim 9 or 10, characterized in that the at least one product vessel ( 13 . 14 ) Component of a hot circulation for the controlled and / or regulated maintenance of a product temperature (TK1, TK2) in the product vessel ( 13 . 14 ). Installation according to one of the preceding claims, characterized by at least one sensor device for detecting the outside temperature of the respective molded and filled container ( 2 ) after forming and filling and / or after heating the container ( 2 ) and of the contents to the sterilization temperature, as well as by a control device for controlling and / or controlling the heating phase (II) and / or the starting temperature (T0) during the molding and filling phase (I) in the preform ( three ) or the forming container ( 2 ) introduced contents. Plant according to one of the preceding claims, characterized in that the forming and filling machine ( 10 ) below a pasteurizer ( 42 ) for the heating and / or hot sterilization and subsequent cooling of the filled and sealed containers ( 2 ) is provided. Installation according to one of the preceding claims, characterized in that the at least one forming and filling station ( 4 ) or a form forming this station ( 4.1 ) Holding means, for example pincer-like holding means for holding the preform ( three ) and the forming container ( 2 ) and / or a mono- or multi-part bottom and / or a contact surface for the preform ( three ) and the forming container ( 2 ) forming forming and filling head ( 27 ) preferably with sealing ( 28 ) having.

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