DE102008009937A1 - Cleaning process for conveyor belts - Google Patents

Abstract

The invention relates to a method for lubricating and cleaning conveyor belts in the food industry, in particular the beverage industry. In the method according to the invention dry lubricants are used, which are applied to the conveyor belts or chains and / or the transported goods. According to the invention, the conveyor belts or chains and / or containers are cleaned with at least one water-based cleaning agent which has lubricating properties.

Description

The The invention relates to a method for lubricating and cleaning Conveyor belts or chains for transport of containers, in particular food containers such as bottles, cans, jars and cardboard packaging. Appropriate transport systems with conveyor belts are common in the food industry and especially the Beverage industry used. The invention relates continue to use a dry lubricant and a water-based lubricant composition and use in transporting devices with conveyor belts or Chains integrated automatic systems for the application of a Dry lubricant and a suitable for cleaning wet lubricant.

At the Bottling of drinks and food in for example Glass or plastic bottles, cans, containers or cardboard packaging and the like, the containers on conveyor belts or Transported transport chains to the individual stations. So have to Reusable beverage bottles from an unpacking device to a bottle washing machine, for filling, to the labeling machine and transported to a packing device. The to used conveyor belts are equipped with special chain slips or so-called belt lubricants sprayed or treated, in particular the friction between container and conveyor belt and at places particularly susceptible to wear to reduce. These are in particular friction surfaces between the chain and the pad, z. B. the slides to Friction surfaces between the chain and cargo to the hinges the chains, around pulleys and guide rollers of the bands or chains.

Usually consist of the conveyor belts on which container be transported from stainless steel, but also from plastics, Elastomers, composites or mixtures of these materials.

So-called Chain lubricant or belt lubricant for conveyor belts in the beverage industry are in different embodiments described in the prior art. So far mainly Wet lubricant used to lubricate conveyor belts.

wet lubricant often have a very good lubrication effect by a significantly reduced frictional resistance and a correspondingly low coefficient of friction shows and at the same time a certain Have cleaning effect. Wet lubricants become common applied by means of an automatic belt lubrication system and dosed.

One Disadvantage of wet lubricants, however, is in the very high Water consumption associated with the use of these lubricants is. Wet lubricants are normally present as concentrates and are in a mixing ratio of usually 1:50 to 1: 1000 with water used. In addition, problems can by z. As the reaction of fat soaps contained in wet lubricants with the ingredients in the dilution water, ie the alkaline earth ions and other water constituents and thereby precipitating, poorly soluble Salts occur that clog nozzles or filters the automatic belt lubrication system can contribute, thereby the container transport considerably disturbed can be. In such cases, the system must after a shut down for a certain period of operation and thoroughly cleaned become.

wet lubricant such as B. Soaps are biologically degradable, but offer the further disadvantage that they provide a good breeding ground for Bacteria provide. To form z. B. under the chains and chain links Of the conveyor belt often slime-like deposits, as a result of the degradation by the bacteria to an unpleasant Cause odor. This mucus must be frequent removed by elaborate cleaning measures become. Due to the biocidal effect and / or foaming tendency of some Ingredients of wet lubricant may also have the function of sewage treatment plants and increased COD levels in wastewater. An increased foaming may also cause problems with automatic bottle control in particular to lead. In addition, there are wet lubricants Residues of liquids to be filled are sensitive, which in turn can lead to a rapid decrease in the lubricating effect.

The aforementioned disadvantages can be at least partially overcome by the use of dry lubricants. Such dry lubricants are sometimes referred to as "dry belt lubricants". The advantages of dry lubricants consist in their compared to wet lubricants improved lubricity, which is particularly evident in lower coefficients of friction. Since the dry lubricants are applied either in concentrated form or only in very low dilutions, much smaller amounts of water are required compared to wet lubricants. This leads in addition to a greatly improved microbiological state of the conveyor belts and thus also a lower amount of contaminated wastewater.

additionally dry lubricants offer increased safety at work, because there are less contaminations on the ground when using them, the z. B. in the case of soap-based wet lubricants to a increased danger of slipping may result. In addition, the dry lubricants have the advantage that their Distribution on the conveyor belts without aerosol formation can be done, reducing the inhalation of spray and the risk of contamination in the bottles is greatly reduced.

disadvantage However, the dry lubricants are that they themselves have no cleaning effect. This is already following low maturity to deposits of dirt, the predominant from a conglomerate of dry lubricant, abrasion and dust is formed from the air. These dirt residues sit down at the tank bottoms and in the interstices the transport chains and lead to a reduction the lubricity and contamination of the filled Food container. Therefore, in regular Intervals a cleaning of the conveyor belts needed in the usual surface cleaner by means of automatic Systems or foam cleaning devices are applied. However, the cleaners used ensure no Lubrication or have no lubricating effect, which regularly The production must be stopped because the pollution at the container bottoms of the containers and / or the conveyor belts during the transport process can not be removed and the transport process because of the lack of lubrication can not be continued. by virtue of of adhering dirt and lubricant residues At the bottom of the container was especially in the reusable area of Beverage industry a use of dry lubricants prevents, as the containers in the transport boxes used primarily have no area contact with the container and the transport boxes Consequently, the adhering dirt can not absorb. The transport trays made of cardboard or used in the disposable area PE film, which makes a flat contact with the food container on the other hand, take up a large part of the above Pollution on the transported containers and in particular at the bottom of the container, reducing the problem.

in view of There is a need for a method for the aforementioned disadvantages for lubricating and cleaning transport devices with conveyor belts or chains, which allows the use of dry lubricants and avoids the disadvantages associated with rapid soiling. In particular, it would be desirable the required Carry out cleaning without interrupting the transport process to be able to.

A The object of the present invention is therefore to provide a method to provide, which allows lubrication with dry lubricants and at least partially avoids the aforementioned disadvantages. A Another object of the present invention is a method to provide, during the lubrication and cleaning of conveyor belts during ongoing production can take place and so a stoppage of Production is avoided. These and other tasks are going through the objects of the present invention described below Invention solved.

• a) Aufbringen von wenigstens einem Trockenschmiermittel auf die Transportbänder oder -ketten und/oder Behälter;
• b) Reinigen der Transportbänder oder -ketten und/oder Behälter mit einem wasserbasierten Reinigungsmittel, das schmierende Eigenschaften aufweist.

An object of the present invention relates to a method for lubricating and cleaning transport belts or chains for the transport of goods or containers, in particular food containers such as bottles, cans, jars and cardboard containers, the method comprising the following steps:

• a) applying at least one dry lubricant to the conveyor belts or chains and / or containers;
• b) cleaning the conveyor belts or chains and / or containers with a water-based cleaning agent having lubricating properties.

It it was surprisingly found that through use of water-based cleaning agents with lubricating properties during the transport process the cleaning due to the treatment with dry lubricant contaminated conveyor belts or chains can be achieved. It has been shown that for the method according to the invention so-called "wet lubricants" suitable Represent detergent.

A "dry lubricant" in the context of the present invention is a composition of one or more components, the lubricating properties, ie the friction coefficient for the sliding friction between two or more elements decreases and applied as a concentrate or diluted with water, the water content in the applied or diluted dry lubricant we niger than 99 wt .-%, preferably less than 50 wt .-%, more preferably less than 10 wt .-% and most preferably less than 1 wt .-%, based on the total weight of the applied lubricant composition is. Preferably, the dry lubricant is applied undiluted.

A "wet lubricant" in the According to the present invention is a composition of one or several components that has lubricating properties, so the Friction coefficient for sliding friction between two or several elements, and by dilution a corresponding concentrate is applied with water, wherein the water content in the applied wet lubricant more than 99 wt .-%, based on the total weight of the applied lubricant composition is.

Usually consist of the conveyor belts on which container be transported from stainless steel, but also from plastics, Elastomers, composites or mixtures of these materials. The process of the present invention is for any one Type of conveyor belts used in the area of container transport be used, usable. For the purposes of the present invention The term "conveyor belts" also includes Transport chains, and vice versa.

The inventive method can be used to transport devices with conveyor belts or chains for the transport of any cargo and in particular Containers, for example glass and plastic containers, including polyethylene terephthalate containers and metal containers such. Aluminum cans and barrels, Plastics, cardboard packaging, treated and coated Cardboard boxes such as Tetra Pak packaging as well as disposable and reusable containers to lubricate and clean. For the purposes of this invention relates the term "container" refers to a container, that for filling, storing, transporting and / or Selling food and in particular drinks suitable is.

beverages contain any liquid suitable for drinking is, like water, fruit juices, soft drinks, beer, wine, spirits, Milk and other dairy products, artificially sweetened Beverages, etc. Furthermore, the inventive Procedure also for food containers, for flowable and viscous foods, such as ketchup, Mustard, sauces, yogurt, honey and others, intended, are used become. Those useful in the process of the present invention Containers can be of almost any size and Be mold, including barrels, keg's, 5 l Cans for z. Beer, 1.5 l, 1 l and 0.7 l glass and PET bottles and cartons, 0.5 l glass and PET bottles, cartons and cans, 0.33 l, 0.25 l and 0.1 l glass, PET bottles, cardboard boxes, plastic containers for z. As yogurt and cans.

From particular advantage is that with the method of the present Invention a continuous container transport in the Beverage industry can be guaranteed. It is not required, the production for cleaning to interrupt the conveyor belts. Rather, one can Cleaning the conveyor belts during production done, z. As required, in regular or irregular intervals or continuously. In this way, the deposits described above on the Conveyor belts removed or avoided, showing the lubricating effect reduce a dry lubricant and impurities the bottoms of the packaged food containers would lead.

In In some embodiments, it may also be desirable be that used dry lubricant and / or detergent with lubricating properties with printing inks or dyes are compatible on the surface of the container be used. For example, it may be desirable that the dry lubricants and / or detergents with lubricating Properties compatible with printing inks that are suitable for Data codes are used on some containers, and do not remove these inks from the containers.

According to one embodiment of the present invention, it may be desirable for the transport of plastic containers, particularly polyethylene terephthalate (PET) containers, that both the dry lubricant and the detergent cause no stress cracking. Containers of polyethylene terephthalate, polystyrene, polycarbonate or other thermoplastics are normally made in a thermoforming process in which the thermoplastic is heated and shaped by means of a forming die into a desired container structure. Subsequently, the material is cooled to preserve the mold, which often includes stresses from thermal processing. When filling this container with z. For example, carbonated beverages, the thermoplastic materials often crack, which often starts from a defect in the thermoplastic and spreads through the thermoplastic until the stress is dissipated. The stress cracks can occur as fine cracks, which usually form axially around the center of the bottle. Point Beverage container stress cracks on the pressure of carbonated drinks in extreme cases can cause the beverage container breaks. Dry lubricant and cleaning agents stress-promoting components such. For example, nonionic surfactants such as polyalkylene oxide condensates of long chain alcohols may therefore be an additional burden during transport to the transport system and should be avoided in the present embodiments.

Preferably be according to the present invention in PET containers essentially hydrophobic materials such as natural and synthetic oils, silicone-containing compositions or Fat alkylamines used, which further stress corrosion Avoid or not promote.

The at least usable in the process of the present invention a dry lubricant can be applied to the surface of a Conveyor belt that comes in contact with a container, on the surface of a container with the Conveyor belt and / or other containers come into contact or applied to both. The dry lubricant can in any way on the surface of the conveyor belt and / or the surface of the container applied become. Application methods include, for example, spraying, Wiping, rolling, brushing, brushing, dusting, Immersion and the like, or a combination of these methods. The dry lubricant can also by vapor deposition or by evaporating the lubricant to form fine drops be applied, which then on the containers and / or can knock down the conveyor belt.

The Dry lubricant can be continuous, intermittent or by applying it once to the surface of the containers and / or conveyor belts are applied. In a preferred Embodiment, the dry lubricant is continuously over Brushes applied to the conveyor belts. The lubrication with the dry lubricant can by conventional methods respectively. For this purpose, the dry lubricant is metered and on the Conveyor belts and / or the container bottoms applied in an amount sufficient to be between the Conveyor belts and containers and / or between to achieve a sufficient lubrication effect on the containers.

The dry lubricants useful in the process of the present invention include all commonly used in this field Dry lubricants such. B. based on soaps, polyalcohols, Silicones, polytetrafluoroethylene (PTFE) particles, waxes or natural and synthetic oils.

preferred Embodiments include dry lubricants on the Base of synthetic and natural oils. According to an embodiment of the present invention Invention, the dry lubricant comprises anhydrous synthetic oils, which are preferably free of silicate and mineral and no solid Contain particles in the form of additives. It can also mixtures of synthetic oils can be used. A other embodiment, however, includes anhydrous natural oils, which are preferably free of silicate and mineral and no solid Contain particles in the form of additives. Also mixtures of natural oils are useful for the process of the present invention.

Dry lubricants suitable according to the invention are preferably selected from the group comprising natural and synthetic oils, waxes, polyalcohols, silicones, Teflon and mixtures thereof. Suitable dry lubricants are known in the art EP 1474501 Lubricants of polyalkylene glycol and fatty acids for application to a surface of a belt or a crawler. The WO 2007/094980 . WO 2007/040678 . WO 2007/040677 and EP 1308393 use silicone-containing compositions with different additives as lubricants, which are particularly suitable for containers made of polyethylene terephthalates. The EP 1842898 describes the use of liquid compositions of an aqueous phase and an oil which form a dry lubricant film. The international application WO 2005/047146 describes a process in which synthetic or natural oils are distributed on the surface of the conveyor belt. The WO 2005/007785 relates to a method in which containers and conveyor belts are at least partially coated with a lubricant consisting of a cured film comprising hydrophobic polymers and waxes. The WO 2006/046970 describes lubricant coatings with low coefficients of friction, wherein the lubricant is a mixture of carnauba wax and at least one other wax.

Common compositions that can be used as dry lubricants in the present invention include lubricants selected from the group consisting of silicones, natural and synthetic oils, and polytetrafluoroethylene. According to a preferred embodiment of the present invention, dry lubricants based on silicones may be used. This composition Tables preferably comprise more than 50% by weight of water and 5 to 20% by weight of polyalkylsiloxanes or functionalized siloxanes, based on the total weight of the lubricant composition and various emulsifiers (for example Calgonit LU 5702 from Calvatis GmbH).

According to a further preferred embodiment Polytetrafluorethylenbasierte dry lubricant may be used, preferably 2 to 10 wt .-% of polytetrafluoroethylene, relative to the total weight of the lubricant composition in a matrix of polyalcohols or oils comprise (z. B. Interflon ^® Fin Food Lube AL to the Interflon BV).

According to one Particularly preferred embodiments may be dry lubricants based on natural or synthetic oils be used. Natural oils typically exist from acid triglycerides consisting of mono- or polyunsaturated Fatty acids having 4 to 20 carbon atoms are formed and preferably comprise vegetable oils selected from the group consisting of sunflower oil, corn oil, Olive oil, rapeseed oil, soybean oil, palm oil and their mixtures. Preferred compositions include bis to 90% by weight of the vegetable oil, based on the total weight the composition.

mineral oils can also be used as inventive Dry lubricant can be used. Typical mineral oils include a complex mixture of hydrocarbons that branched and non-branched, linear and cyclic, saturated, unsaturated and aromatic, and substituted hydrocarbons may include. Preferred mineral oils include mainly paraffins, n-paraffins and isoparaffins.

As synthetic oils are referred to in the present invention, those oils which consist of mineral oils and contain other ingredients by chemical synthesis, such as. By polymerization of olefins to polyalphaolefins (PAO) or polyalkylene glycols (PAG) or by condensation reactions to esters (e.g., UCON ^™ 50-HB-100 of the Dow Chemical Company). Preferred compositions of the present invention include polyalphaolefins. These synthetic oils are used according to the invention as a dry lubricant usually in a viscosity range of 20-600 mm ² / s.

Next The aforementioned dry lubricants are also other compositions as a lubricant according to the present invention suitable, provided they have the desired lubrication properties exhibit.

There a contact of the food with the dry lubricant in some Cases can not be completely ruled out, it is preferred that for the preferred embodiments dry lubricants used in the present invention which desirable for the food industry NSF Own H1 approval.

According to one preferred embodiment of the invention Procedure, the cleaning step b) takes place during the Transport process. A significant advantage of the present invention arises from the fact that cleaning and removal the accumulated by the dry lubricant undesirable Pollution can occur without the production or the Transport process must be interrupted. By using the Cleaning agents according to the invention, ie of compositions with cleansing and lubricating properties, the friction coefficient becomes or the coefficient of friction is reduced so far that the transport process can be continued. According to another preferred embodiment is the coefficient of friction for the sliding friction during the cleaning step b) at most 0.15, preferably at most 0.13 and more preferably at most 0.12.

The Friction coefficient or the "friction coefficient" in Meaning of the present invention relates to the sliding friction between container and conveyor belt and is determined by the pulling force of the container caused by the friction determined with the aid of a force measuring instrument (eg a spring balance) is divided by the weight of the container becomes.

According to In another preferred embodiment, the cleaning step b) at regular intervals, preferably at intervals in the range of 2 to 48 hours, depending on the material of the conveyor belt, the cargo and the number of containers transported. For example, the cleaning step b) in regular Intervals of 2, 3, 4, 5, 6, 8, 12, 24 or 48 hours for example, between 0.5 and 3 hours and preferably between 1 and 2 hours.

According to a further preferred embodiment, the cleaning agent is applied with an automatic belt lubrication system on the conveyor belts or chains and / or containers. Modern transport devices with conveyor belts or chains often have one or more automatic belt lubrication systems, which serve the application of lubricants and are usually equipped with appropriate nozzles. A typical transport system with belt lubrication system is for example in the WO 95/08499 described.

The Detergents with lubricating properties may be present in this Method for cleaning the surface of the conveyor belts and / or for cleaning the surface of the containers be used. The cleaning agent with lubricating properties can do it in any way on the surface the conveyor belt and / or the surface of the container be applied. Exemplary application methods include Spraying, wiping, rolling, brushing, dusting, Immersion and the like, or a combination of these methods. Preferably, the cleaning agent with lubricating properties over applied the nozzles of the automatic belt lubrication system.

In In one embodiment, the complete system is made up of conveyor belts cleaned with the cleaning agent according to the invention. In a further embodiment, the entire surface the conveyor belt and / or the footprint of the container cleaned with the cleaning agent with lubricating properties. In another embodiment, the footprint the container with the cleaning agent according to the invention cleaned, which come in contact with the dry lubricant is. In another embodiment, only the last Conveyor belts before packing in corresponding transport crates continuously cleaned, at the same time the dirty container bottoms with the cleaning agent according to the invention clean.

To the The cleaning agent according to the invention can be cleaned at regular or irregular intervals applied to the conveyor belts and / or containers become. For this purpose, preferably (initially) an aqueous Cleaning agents with lubricating properties over a usual automatic dosing station in an amount that is sufficient around on the conveyor belts and / or containers to achieve a cleaning effect on the conveyor belts applied. For cleaning are usually concentrations from 0.1 to 1.0% by weight of the cleaning agent with lubricating properties sufficient. The solutions can be continuous or discontinuously applied to the conveyor belts become.

One designed for soap- or amine-based lubricants Dosing system can also without change for the application of the cleaning agent according to the invention with lubricating Properties are used.

The Detergents useful in the process of the present invention with lubricating properties usually include in this area used wet lubricants containing a detergent component such as As those based on soaps, phosphate esters, as well as primary, secondary and tertiary fatty alkylamines.

Preferred embodiments include detergents with lubricating properties based on amines. A particular embodiment in this case comprises secondary and tertiary amines which can be used with conventional diluents or auxiliaries and additives, as in EP 0384 282 described. These detergents with lubricating properties are preferably used in aqueous solution and show good coefficients of friction, low foaming behavior, good cleaning action and ensure hygienically perfect conditions.

According to a further preferred embodiment of the present invention, therefore, suitable cleaning agents are selected from the group comprising amines, soaps and phosphate esters. The composition of the cleaning agents according to one embodiment of the present invention corresponds to the composition of conventional wet lubricants, as described in the prior art DE 2313330 an aqueous lubricant composition containing a fatty acid-derived soap and a surfactant. The WO 96/18709 relates to soap-containing, complexing agent-free lubricant compositions for bottle conveyor systems. The DE 3905548 describes wet lubricants containing secondary and / or tertiary amines suitable for lubricating, cleaning and disinfecting automatic chain and belt lubrication systems used to transport plastic polyethylene terephthalate or polycarbonate containers. The DE 3631953 describes lubricants with neutralized primary fatty amine containing 12 to 18 carbon atoms and containing more than 10% of unsaturation. EP 0652927 describes a lubricant concentrate of polyamine derivatives of a fatty amine, water and additives. WO 98/56881 discloses lubricant compositions which obtain their lubricating properties from monoamines which further comprises a deposit-preventing component, the primary fatty amine preferably consisting of C ₈ -C ₂₂ fatty amine. The DE 68906514 describes aqueous amine-containing lubricant solutions based on Fettalkyldiaminopropan, which may additionally contain fatty alkyl monoamine. The DE 3831448 relates to aqueous lubricant formulations containing alkylbenzenesulfonates, alkoxylated alkanol phosphates and alkanecarboxylic acids, a process for their preparation and their use.

According to one preferred embodiment of the present invention are amines, most preferably primary, secondary and tertiary fatty alkylamines as detergents with lubricating Properties used. The alkyl radicals of the fatty alkylamines exist preferably from linear or branched, substituted or unsubstituted, saturated or unsaturated Alkyl radicals having 2 to 22 carbon atoms. Especially preferred Compositions of wet lubricants include oleylpropylenediamine or N- (3-aminopropyl) -N-dodecylpropane-1,3-diamine as a detergent Component which in the wet lubricant concentrate to 1 to 100 % By weight, based on the total weight of the lubricant composition, (eg calgonit bandfit 730 or calgonit bandfit NT 3000 Calvatis GmbH).

Next The aforementioned wet lubricants are also other compositions as a cleaning agent according to the present invention provided they have the desired cleaning and lubricating properties exhibit.

Especially Combinations of dry lubricants on the Base of natural or synthetic oils with wet lubricants based on primary, secondary or tertiary fatty alkylamines, as a cleaning agent with used lubricating properties.

By the application of the cleaning agent according to the invention can the desired hygienic conditions in the transport device or on the conveyor belts and / or the transported goods or the containers can be achieved.

According to one another preferred embodiment of the present invention the duration of the cleaning step is at most 3 hours, preferably at most 2 hours and especially preferably at most 1 hour.

The Bottom of the container to be transported can through the contact with the dirty conveyor belts or chains are contaminated. To avoid being contaminated Container z. B. the packaging station and get so outwardly contaminated in the trade, takes place according to a preferred embodiment the present invention, the application of the cleaning agent continuously on the conveyor belts or chains and / or the containers at the end of through the conveyor belts or chains fixed transport path or immediately before the "destination station" (z. B. Packer or Inspector) to the container bottoms before the packaging unit or container inside inspection to clean.

Within a system of conveyor belts, it is particularly advantageous if individual conveyor belts have different coefficients of friction exhibit. So are lower coefficients of friction in fast transporting Areas required, such. B. in areas where individual Containers in a row at very high speed be transported or in intermediate areas in which individual Move container into an area where several Container can be transported side by side. Higher coefficients of friction, however, are at the end of a Conveyor belt system advantageous to a sufficient back pressure to produce and when packaging containers. thats why it is desirable that in the invention Method different coefficients of friction at different Adjusting the system from conveyor belts can be set can. These may change by conversion of Dry lubrication to wet cleaning / lubrication and vice versa not change so much that technical parameters like belt speeds, Guide rails, etc. are to be changed.

According to one preferred embodiment of the present invention becomes the application of the at least one dry lubricant interrupted during the cleaning step b).

A further aspect of the present invention relates to the use of a water-based lubricant composition, in particular wet lubricants, as a cleaning agent for cleaning conveyor belts or chains and / or containers to be transported thereon, in particular food containers such as bottles, cans, jars or cardboard containers. In a preferred embodiment of Present invention, the conveyor belts or chains and / or containers are lubricated with a dry lubricant in the aforementioned use.

One Another aspect of the present invention relates to the use one in a transport device with conveyor belts or chain integrated automatic belt lubrication system for application of a water-based cleaning agent for cleaning the conveyor belts or chains, wherein the conveyor belts or chains preferably lubricated with a dry lubricant The present Invention is further illustrated by the following example:

example

1 : Schematic representation of a bottle conveyor on which the measurements described below were carried out.

2 : Graphical representation of the coefficients of friction determined by the change from dry-belt lubrication to a detergent with lubricating properties at irregular intervals.

At a bottle conveyor with a capacity of 40,000 Bottles / hour become friction coefficients at defined locations the conveyor belts during operation under Application of the method according to the invention determined. The measurement is done by means of a train scale, while moving the conveyor under the bottles. lubricant with low lubricity result in a higher Tensile force and thus a higher coefficient of friction, since the occurring between the bottles and the conveyor belt Force is transferred by the friction to the bottles.

The following table shows the corresponding coefficients of friction in the feed of a labeling machine for a system in which at irregular intervals of dry belt lubrication on a detergent with lubricating properties is changed. Table 1: system average coefficient of friction Cleanser with lubricating 0.12 properties Dry belt lubrication 0.09 Cleanser with lubricating 0.11 properties Dry belt lubrication 0.09 Cleanser with lubricating 0.11 properties

The result is also in 2 played.

The Friction measurements started at time 0 during the Cleaning the conveyor belt with the detergent with lubricating Properties based on fatty alkylamines (calgonit Bandfit 730 Calvatis GmbH), at the average friction coefficient of 0.12. After 20 min was on a dry belt lubricant switched on the basis of polyalphaolefins, whereupon lower Coefficients of friction averaging 0.09. To another 90 min was followed by a switch to cleaning with lubricating properties, resulting in an average Friction coefficient of 0.11 set. Another change on a dry belt lubrication after 150 min again resulted to a lower coefficient of friction of average 0.09, which after a renewed change to the detergent with lubricating properties set to 0.11 again.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• EP 1474501 [0028]
• WO 2007/094980 [0028]
• WO 2007/040678 [0028]
• WO 2007/040677 [0028]
• - EP 1308393 [0028]
• EP 1842898 [0028]
• WO 2005/047146 [0028]
• WO 2005/007785 [0028]
• - WO 2006/046970 [0028]
• WO 95/08499 [0039]
• EP 0384282 [0045]
• - DE 2313330 [0046]
• WO 96/18709 [0046]
• - DE 3905548 [0046]
• - DE 3631953 [0046]
• EP 0652927 [0046]
• WO 98/56881 [0046]
• - DE 68906514 [0046]
• - DE 3831448 [0046]

Claims (18)

Process for lubricating and cleaning conveyor belts or chains for containers, in particular food containers such as bottles, cans, jars and cardboard packaging, the method comprising the following steps: a) Apply of at least one dry lubricant on the conveyor belts or chains and / or containers; b) cleaning the conveyor belts or chains and / or containers with at least one water-based Cleaning agent that has lubricating properties. The method of claim 1, wherein the cleaning step b) during the transport process he follows. A method according to claim 1 or 2, where the friction coefficient for the sliding friction during of the purification step b) at most 0.15, preferably at most 0.13, and most preferably at most 0.12. Method according to one of the preceding Claims, wherein the cleaning step b) in regular temporal Distances, preferably at intervals in the range from 2 to 48 hours throughout the transport system. Method according to one of the preceding Claims, wherein the purification step b) continuously at the end of the set by the conveyor belts or chains Transport path takes place to the container bottoms clean. Method according to one of the preceding Claims, wherein the cleaning agent with an automatic Belt lubrication system on conveyor belts or chains and / or container is applied. Method according to one of the preceding Claims wherein the dry lubricant is selected is from the group comprising natural and synthetic oils, Soaps, waxes, polyalcohols, silicones, polytetrafluoroethylene (PTFE) and mixtures thereof. A method according to claim 7, wherein the dry lubricant is selected from the group comprising natural and synthetic oils. Method according to one of the preceding Claims, wherein the cleaning agent selected is from the group comprising amines, soaps, amphoteric and anionic Surfactants and phosphate esters. A method according to claim 9, wherein the cleaning agent is selected from the group comprising primary, secondary and tertiary fatty alkylamines. Method according to one of the preceding Claims, with dry lubrication and wet cleaning reciprocally without loss of lubricity due to incompatibilities can be applied between lubricants and cleaning agents. Method according to one of the preceding Claims, wherein the duration of the cleaning step at most 3 hours, preferably at most 2 hours and especially preferably at most 1 hour. Method according to one of the preceding Claims, wherein the conveyor belts or chains Parts and / or surfaces of stainless steel, plastics, Elastomers, composites or mixtures of these materials exhibit. Method according to one of the preceding Claims wherein the containers are selected are from the group comprising glass containers, in particular Bottles, plastic containers, including polyethylene terephthalate containers, Metal containers, in particular aluminum cans and barrels, and cardboard packaging, especially treated or coated Cardboard packaging, such as Tetra Pak packaging. Method according to one of the preceding Claims, wherein the application of the at least one dry lubricant during the cleaning step b) is interrupted. Use of a water-based lubricant composition as cleaning agent for cleaning supply of conveyor belts or chains for containers and / or containers, in particular food containers such as bottles, cans, jars or cardboard packaging. Use according to claim 16, the conveyor belts or chains and / or containers be lubricated with a dry lubricant. Using one in a transport device with Conveyor belts or chains integrated automatic Belt lubrication system for applying a water-based cleaning agent for cleaning the conveyor belts or chains and / or the transported goods transported thereon, wherein the conveyor belts or chains and / or transported goods transported thereon preferably be lubricated with a dry lubricant.