EP0725592B1 - Packaging and metering system for detergents and other water treatment and/or process chemicals - Google Patents

Abstract

The packaging and dosage system includes (a) a refillable, flexible container (1), which can be filled with powder or granulate, with a double-walled outlet portion (13) with a closure (5) at the upper end, opt. a closure at the bottom of the inner part, and a removable closure (6) for inner and outer parts, (b) a metering or dispersing unit for storing the powder or granulate, comprising a lidded container with a perforated plate, the height of which can be altered, and, below the plate, nozzles and outlet units, (c) opt. a metering and control unit for the water feed, to supply at least one spray nozzle at the outlet, (d) a holder for the container, the metering or dispersing unit, and the opt. water-control units, and opt. (e) a chemically and mechanically stable container for the storage and transport of the emptied container.

Description

The invention relates to the subject matter specified in the claims.

The invention particularly relates to a novel packaging and dosing system for powder or granular or liquid or pasty washing, cleaning, Bleach, disinfectant, preservative and / or other water treatment and / or process chemicals such as Hardness stabilizers, corrosion inhibitors, Slime control agents, water softeners and the like or flocculants for waste water (= filling goods), including a special shaped refillable, flexible container, which in particular sack or is bag-shaped and made of water vapor-tight and transparent Plastic material, a dosing or flushing device for storage or buffering the filling goods as well as for controlled dissolving or flushing and Dosing the same, possibly a measuring and control device, a holding device for Attachment and adjustment of the storage bag, the dosing or induction device, as well as, if applicable, the measuring and control device at the point of use, and possibly chemically and mechanically stable receptacles for collection and return transport of the emptied bag-shaped containers, these receiving containers should meet the criteria of the Dangerous Goods Ordinance.

The invention also relates to a method for washing and dosing washing, Cleaning agents, bleaching agents, disinfectants, preservatives and / or others Water treatment and / or process chemicals.

Detergents, cleaning agents, bleaching agents, disinfectants, preservatives and other water treatment chemicals have long been used as liquid, pasty, solid, lumpy and powdery or granular products. A general overview can be found, for example, in the publication by HE Tschakert, Seifen, Öle, Fette, Wwachs 98 , (1972), 793-801, 845-849 and ibid. 99, (1973), 3-7 included.

More recently, the patent literature has dealt with processes for producing shaped solid detergents by pouring a heated melt or solution in forms and solidification when cooling, e.g. the European patent applications EP-A-000 3 769 and EP-A-0 307 587, as well as the German patent applications DE-A-35 19 353, DE-A-35 19 345, DE-A-35 19 355 and DE-A-36 34 812.

Because of the increasing amount of waste, there is an increased need for packaging systems, with the least possible packaging volume in relation to Fill quantity. In addition, the requirement for mono packaging materials directed, especially when filling with hazardous substances can be emptied easily and reliably. An opportunity for chemical Products such as Cleaning agents consist of filling with concentrates instead of highly diluted mixtures. Here are supposed to be in the area of detergents Possible reductions in packaging requirements by factors 2 to 5 be. A further reduction is conceivable through the use of reusable containers, i.e. by refilling or recycling in sorted recycling. This should again reduce factors from 5 to 10 may be possible.

DE-C-42 04 489 describes reusable containers, the detergents or cleaning agents in the form of either compressed powder mixtures with or without a top layer or of granule mixtures held by a water-soluble barrier layer having. The required amount of detergent or cleaning agent is extracted by spraying with water. The production of the reusable container with detergents or cleaning agents is very expensive. Furthermore, one is in the product formulations of detergents or cleaning agents limited because it is made by the manufacturing process (casting, Presses) to reactions of individual mutually incompatible components can come. The recyclable used according to DE-C-42 04 489 Reusable containers that are filled with the product and delivered to the customer must be returned to the manufacturer after use. This requires well-organized logistics, which are not always accomplished can be.

Finally, it should be borne in mind that such reusable containers are high Return transport costs are incurred as well as high production costs for the containers themselves are to be estimated.

The presentation in powder and granule form therefore offers manufacturers Advantages of a very flexible recipe design and a favorable cost / performance ratio due to relatively simple production processes. Also incompatibilities of individual ingredients, which in the Production and presentation in liquid, pasty or solid piece-like form can lead to product decomposition or reduced storage stability, more easily avoided in the production as powdered or granular mixtures will. Especially for products for commercial use, at which is often a high product performance at very low application concentrations and short exposure times are required, contain the powder or granular products, but also liquid or pasty products, often components that cause irritation when in direct contact with the skin or even cause burns. For this reason, manufacturers strive to offer such products for a long time in a packaging form, which, when used as intended, the risk of a direct Avoid skin contact with the products. This usually includes special dosing and dissolving devices required for the products.

Dosing systems for machine dishwashing are also available from a dosing cartridge and a console for rinsing out the cleaning agent known (e.g. systems from Diversey GmbH, product Divopak PS in 6 kg dosing bottle with Diverforce 2000 dosing system; System of the company Lever Sutter, product Sumazon extra in 4 kg dosing bottle with a suitable one Dosing system; System from Holluscheck dosing bottle à 2.5 kg).

In the aforementioned dosing cartridge, the detergents or cleaning agents are as Powder mixture included. The dosing cartridge is essentially a bottle-shaped one Container attached to its opening with a protective screw cap is closed. The protective screw cap is removed for use bottle-shaped container with the powder or granulate mixture in a suitable Console, i.e. Induction or injection device used, clamped or screwed in. By spraying with water through the arranged in the container The amount of detergent or cleaning agent required is i.e. a concentrate is removed and added to the washing liquor.

The disadvantage of all these systems is that they can be filled with Containers used in powder have a wide-mouth bottle-like shape and therefore take up the same volume in the emptied state as in filled state, so that both when storing the emptied container as well as during transport either for disposal or for recycling a high storage or freight volume is used. On the other hand exists due to the design of the containers as dimensionally stable bottles relatively unfavorable mass ratio container material: filling content of approx. 1:20.

In the as yet unpublished German patent application P 43 13 984.1 an attempt is made to avoid these disadvantages by using powder and granular products in a recyclable, stackable, reusable container with conical side walls and two closable Openings on the opposite sides of the cone-like container body be filled in, the smaller opening being closed with a sieve and the powder or granular products through this sieve rinsed out of the container by means of a matching induction device can be. This configuration eliminates that in the aforementioned Embodiments existing disadvantage that the emptied container cannot be stacked one inside the other during storage and transport, i.e. so it enables a significant reduction in the storage or transport volume; the Mass ratio container material: filling mass is because of the required massive design of the container is still very unfavorable. On the other hand each individual container contains one like the aforementioned containers Screening device, which due to the complex production at high production costs and thus leads to additional product cost increases. Furthermore from an ecological point of view, it is not appropriate, expensive Elements that are not for the purpose of storage or transport security, but for consumer use in a packaging system to install.

From DE-A-2 518 744 a dosing device with a device is known it allows a continuous hose filled with dishwashing detergent can be passed through this dosing device. In the dosing device there is a slotted blade that continuously slits the hose and as it advances into the device and the tube is deformed as a result is that the dishwashing detergent from the open hose into one underneath located funnel can fall and from there into the dishwasher reached. The packaging and dosing system described in DE-A-2 518 744 is very elaborately constructed and for practical use for dishwashing and Washing machines little or not suitable, as there is dishwashing detergent on the blade can adhere or bake and the rest of the remainder Dishwashing detergent can remain in the film tube so that it only are insufficiently wound on the subsequent spool can.

An electronically controlled so-called permatic metering system is also known for powdered dishwashers that come from an electronic control unit and a dosing device. Refilling or refilling the dosing device or the storage container is carried out by loose goods or by sachets. The portion packs are packaged with one in the dispenser Blade slit open and empty itself when the bag is pulled out of the Storage container. This will make the portion pack complete destroyed. Through a dosing mechanism that is driven by an electric motor is then the dishwashing detergent from the dispenser into a induction pan dosed and washed directly into the tank of the washing system with water. This Permatic system has the advantage of simple filling, however, in practice it can never be entirely ruled out that the operating personnel with which very aggressive cleaning agent comes into contact.

The storage container of the dosing device is with a lid and one special powder seal and is intended to protect the powder against moisture protect; However, in practice this is not the case, because it has been found that moisture on the dosing mechanism or in the storage container precipitates and a crust of the cleaning powder in particular Long standing overnight or on weekends results.

It is also known, so-called bulk goods, i.e. Granules, agglomerates, granular and coarse pearl-shaped goods such as Fertilizers, salts, chemicals, Plastic granules, feed and food in large bags with one Filling volumes from 300 to 2000 (300-2000 kg) liters and then to pack transport. These large bags are available in many shapes and sizes, in a construction form of these large sacks, the sack has four hanging loops have and in the bottom area for emptying various valves or can have side gussets / configurations (so-called four-loop sack).

The disadvantage of these large bags filled with 300 to 2000 kg is that a Dosing from these containers is difficult for the consumer is, i.e. usually the entire contents of the bag, for example in one Reaction container into which this large bag can be portioned.

Another major disadvantage of all of these detergent dosing systems and chemicals etc. is the fact that changing the empty bottles or cartridges or reusable containers as a rule is possible if these are completely emptied by rinsing out the contents and thus practically no reserve for maintaining the product dosage there is more during the replacement process. If there are delays hence underdoses and procedural or performance disorders caused by them (e.g. insufficiently cleaned dishes) cannot be excluded. Desirable is therefore a system that is also completely when replacing the emptied original product container still a certain product stock Maintaining trouble-free operation.

The invention is therefore based on the object of a system for filling, Transporting, dosing and dissolving washing, cleaning, bleaching, disinfecting, Preservatives or other water treatment chemicals to provide with the help of such products safely and without contact with the human skin to the point of use, e.g. a commercial dishwasher, brought and fixed there, what targeted and controlled the required amount of product in a induction and dissolving device dispensed and from there with a liquid stream as a pre-dissolved concentrate to the workplace, e.g. Washing zone of a dishwasher, transported can be. The system also requires that the mass Packaging proportion is small in relation to the packed goods, the emptied Allow packaging to be significantly reduced in volume in a simple manner and can be safely stored and transported. Further demands are that the elements of the dosing and induction system are simple and inexpensive are to be manufactured, because of the often limited space available at the Locations require only a small installation space for inspection, Cleaning and maintenance work easily and safely into individual elements disassemble and are largely stable against mechanical destruction.

According to the invention, these tasks are achieved by the packaging and dosing system for powder and granular products with the specially shaped refillable, flexible container, the dosing or induction device, the Holding device, possibly the measuring and control device and possibly the receptacle for storage and transport of the emptied container, according to claim 1 or by the method of flushing and Dosing of powder or granular or liquid or pasty Detergents, cleaning agents, bleaching agents, disinfectants, preservatives and / or other water treatment and / or process chemicals according to claim 18 solved.

Advantageous refinements of the system according to the invention are contained in subclaims 2 to 17.

Surprisingly, it has been shown that for powdered and granular Filling goods by the system according to the invention according to claim 1 a full Effectiveness of all substances of the cleaning agent or the water treatment and / or process chemicals is guaranteed, this without More consumption of fresh water and detergent powder compared to conventional ones Systems is accomplished. It is essential that the staff with the Detergent powder no longer comes into contact and the flexible Prey not to be completely destroyed by slitting so that it is collected, stored and transported back to the manufacturer for refilling can. Due to the transparent design of the dosing device cover or The fill level is controllable. It is also advantageous that with the help of the new measuring and control device (50) the water supply for supply the spray nozzles can be controlled so that a pulsating Spraying of the cleaning agent takes place and an interval dosage with adjustable Spray duration and pause times of the detergent concentrate reached can be. This is particularly appropriate when cleaning products used in the solution, i.e. in the cleaning fleet the electric Conduct electricity well. It is particularly advantageous that in the inventive Bag (1) a very favorable mass ratio of container material: filling material of about 1:50.

The invention will now be explained in more detail with reference to the figures.

Fig. 1:

eine Wandhalterung für das erfindungsgemäße Verpackungs- und Dosiersystem mit der Dosier- bzw. Einspüleinrichtung (20), dem Pulvervorratsbehälter (1), dem Meß- und Regelgerät (50);

Fig. 2:

den erfindungsgemäßen wiederbefüllbaren, flexiblen Pulvervorratsbehälter (1), der für 5 kg Pulverreinigungsmittel vorgesehen ist;

Fig. 3:

das erfindungsgemäße Dosier- bzw. Einspülgerät (20) zum Speichern bzw. Puffern der pulver- und granulatförmigen Detergentien und Wasserbehandlungschemikalien sowie zum Einspülen und Dosieren desselben;

Fig. 4:

den Düsen- und Ablaufeinsatz für das erfindungsgemäße Dosier- bzw. Einspülgerät gemäß Fig. 3;

Fig. 5:

den Klemmverschluß für den erfindungsgemäßen Pulvervorratsbehälter (1);

Fig. 6:

das erfindungsgemäße Verpackungs- und Dosiersystem bestehend aus dem beutel- oder sackförmigen Behälter (1), der Dosier- bzw. Einspüleinrichtung (20), dem Meß- und Regelgerät (50), der Halteeinrichtung (40), sowie Zu- (61) und Ableitungen (62) für den im unteren Teil des Dosiergerätes angebrachten Düsen- und Ablaufeinsatz (30), einem Rohrunterbrecher (48) sowie einer in der Spülflotte (70) angebrachten Meßzelle (80) für die Leitfähigkeitsmessung, die mit dem Meßgerät (50) verbunden ist;

Show it:

Fig. 1:

a wall bracket for the packaging and dosing system according to the invention with the dosing or flushing device (20), the powder storage container (1), the measuring and control device (50);

Fig. 2:

the refillable, flexible powder storage container (1) according to the invention, which is intended for 5 kg of powder detergent;

Fig. 3:

the dosing or induction device (20) according to the invention for storing or buffering the powdered and granular detergents and water treatment chemicals and for rinsing and dosing the same;

Fig. 4:

the nozzle and drain insert for the dosing or induction device according to the invention according to FIG. 3;

Fig. 5:

the clamp closure for the powder storage container (1) according to the invention;

Fig. 6:

the packaging and dosing system according to the invention consisting of the bag-shaped or sack-shaped container (1), the dosing or flushing device (20), the measuring and control device (50), the holding device (40), and feed (61) and Discharges (62) for the nozzle and drain insert (30) attached in the lower part of the dosing device, a pipe interrupter (48) and a measuring cell (80) attached in the washing liquor (70) for the conductivity measurement, which are connected to the measuring device (50) is;

(a) Einer Halteeinrichtung (40) zur Anbringung und Justierung des Vorratsbeutels (1, 102), des Dosier- bzw. Einspülgeräts (20) bzw. der Puffer- und Dosiereinrichtung (120) sowie des Meß- und Regelgeräts (50), bestehend aus mechanisch und chemisch stabilem Material, vorzugsweise aus Edelstahl-Profil. Die Halteeinrichtung (40) besteht aus einem Träger oder Rückenelement (41) mit einem am oberen Abschnitt (42) angebrachten Querträger (46), der Halte- oder Klemmeinrichtungen, insbesondere höhenjustierbare Haken (44) aufweist. Die Haken sind z.B. durch ein Schraubgewinde in der Höhe verstellbar, um eine Justierung des hieran aufgehängten Beutels (1, 102) mit dem Füllgut relativ zum Einspülgerät zu ermöglichen. Im unteren Abschnitt (45) sind Mittel zur Aufnahme der Dosiereinrichtung (120, 20), insbesondere Bohrungen (47) für das Gehäuse vorgesehen. In einer anderen Ausführungsform kann der obere Querträger (44) mittels einer Drehvorrichtung an dem Rückenelement oder Querträger in der Höhe verstellbar angebracht sein, damit auf diese Weise eine Justierung des hieran aufgehängten Beutels relativ zum Einspülgerät ermöglicht wird. An der Rückseite des Trägers oder Rückenelements (41) können Bolzenarretierungsbohrungen zur Wandmontage vorgesehen sein.Die Halteeinrichtung (40) kann als Wand- oder Standanlage ausgebildet sein.

(b) Einem wiederbefüllbaren beutel- oder sackförmigen Produktbehälter (1) aus flexiblem, wasserdampfdichtem Material, vorzugsweise aus Kunststoff, besonders bevorzugt aus halogenfreiem Kunststoff wie Polyethylen, Polypropylen, Polyamid oder dergleichen oder sogenannten natürlichen Kunststoffen wie Stärke(n) oder modifizierten Stärken aus Blends aus Stärke(n) mit den vorgenannten Materialien. Das Kunststoffmaterial sollte bevorzugt transparent oder zumindest teilweise transparent sein, um den Füllstand erkennen zu können. Besonders geeignet ist ein Kunststoffmaterial, das sich durch geeignete Temperatureinwirkung in an sich bekannter Weise verschweißen läßt. Die sack- oder beutelförmigen Behälter (1) können an sich jedes dem Bedarf angepaßtes Füllvolumen aufweisen, beispielsweise ca. 500 cm³ bis ca. 1000 dm³. Besonders bevorzugt für das erfindungsgemäße System sind jedoch Füllvolumina zwischen 2,5 dm³ und ca. 50 dm³, da hier eine einfache Handhabung möglich ist. Die Wandstärke der flexiblen Behälterwandung(en) ist an die Stabilitätsanforderungen in Abhängigkeit von der Füllmenge anzupassen; z.B. kann bei durchgehend doppelwandiger Ausgestaltung und einer Füllmasse von 5 kg die Außenwandstärke ca. 100 µm und die Innenwandstärke ca. 50-70 µm betragen. Die Wandstärken sind so zu optimieren, daß mit geringstmöglichem Materialeinsatz zuverlässige Sicherheit bei Transport und Anwendung erzielt wird. Wesentliche Elemente in der Ausgestaltung des beutel- oder sackförmigen Behälters (1) sind folgende:

1. Wenigstens im Ablaufteil (13) doppelwandig ausgestaltete Seitenwände (2), die die Längsachse (L) des Behälters (1) umschließen und im Anschlußteil (4) des Ablaufteils (13) schlauchartig ausgestaltet sind. Der innere Teil (8) der Behälterwandung im unteren Auslaufteil (13) ist so gestaltet, daß er unabhängig und getrennt von der äußeren Behälterwandung (14) durch Vernähen, Verkleben, Zubinden, Zuklammern oder besonders bevorzugt durch Verschweißen dicht bei (7) verschlossen werden kann. In einer besonderen Ausführungsform kann der beutel- oder sackförmige Behälter (1,) im gesamten Behälterwandflächenbereichdoppelwandig ausgestaltet sein. Ferner ist der untere Teil des Behälters (1) schlauchartig ausgestaltet. Im Falle des Systems für granulatförmige oder pulverförmige Füllgüter ist die innere Wandung (8) formschlüssig bzw. bündig an der inneren Wandung des Einlaufstutzens (22) des Einspül- bzw. Dosiergeräts anliegend, während die äußere Wandung (14) außen am Stutzen (22) anliegt.

2. An den beiden gegenüberliegenden Seiten des Behälters (1) je ein Verschluß (5) am oberen Rand des Behälters (1) und ggf. ein Verschluß (7) für den inneren Teil (8) der Behälterwandung am unteren Ende des schlauchartigen Ablaufteils (4). Der Verschluß (5) und ggf. der Verschluß (7) am oberen bzw. am unteren Rand des Behälters kann durch Vernähen, Zubinden, Zuklammern oder einem sogenannten Kunststoffreißverschluß oder besonders bevorzugt durch Verschweißen bewerkstelligt worden sein.

3. Mindestens zwei am oberen Rand eingearbeitete Aufhängemittel, insbesondere Ösen zum Einhängen des Behälters (1) an die Aufhängehaken der Halteeinrichtung (40). Diese Ösen bestehen vorzugsweise aus dem gleichen Material wie die Wandungen des Behälters und sind insbesondere mit diesem dicht verschweißt.

4. Eine lösbare Verschlußeinrichtung (6) für das gemeinsame Verschließen des inneren(8) und des äußeren (14) schlauchförmigen Behälterabschnitts oberhalb des Verschlusses (7) für den inneren schlauchförmigen Behälterabschnitt (4). Diese Verschlußeinrichtung (6) kann durch Zubinden, Zuklammern oder in einer besonders bevorzugten Ausführung durch eine sogenannte Klemmverschluß-Leiste (vgl. Fig. 5) erzielt werden. Diese Klemmverschluß-Leiste besteht aus einer verhältnismäßig starren, aber dennoch an der offenen Seite (53) aufweitbaren C-Profil-förmigen Schiene (51), bevorzugt aus geeignetem Kunststoffmaterial wie z.B. Polyamid und einer in das Profil passenden flexiblen Schnur (52) aus Kunststoff oder Gummi.

Zum Verschließen des doppelwandigen schlauchförmigen Behälterabschnitts (4) wird die C-Profil-Schiene (51) senkrecht zur Schlauchrichtung auf die eine Seite des Behälterabschnitts gebracht und von der anderen Seite die flexible Schnur (52) mit den jetzt vierfach liegenden flexiblen Behälterwandungen in diese Schiene gedrückt, so daß ein dichter Verschluß resultiert.Vor der Befüllung des sack- oder beutelförmigen Behälters (1) wird dieser in einer Ausführungsform mit einem Verschluß (7) für den inneren Ablaufschlauch (8) und einem darüber liegenden, lösbaren gemeinsamen Verschluß (6) für den inneren (8) und den äußeren (14) Schlauchablauf versehen, so daß der untere Schlauchabschnitt verschlossen ist; sodann wird das Füllgut eingefüllt und hierauf der obere Rand des sack- oder beutelförmigen Behälters bei (5), insbesondere durch Schweißen verschlossen.In einer anderen Ausführungsform kann zunächst der obere Rand bei (5) des sack- oder beutelförmigen Behälters, insbesondere durch Verschweißen verschlossen werden und dann von der anderen Seite der Behälter mit dem Füllgut befüllt werden, worauf dann der lösbare Verschluß (6) angebracht wird. Bei dieser Verfahrensweise wird kein Verschluß an dem inneren Ablaufschlauch (8) bei (7) angebracht.Im Falle des Systems für pulver- oder granulatförmige Füllgüter hängt man zur Anwendung den befüllten Beute mittels der oben beschriebenen Ösen in die Haken der Halterung ein, öffnet gegebenenfalls in geeigneter Weise, z.B. durch Abschneiden der Schweißnaht (7), den inneren Wandungsabschnitt (8) und führt den unteren schlauchförmigen Teil des Behälters (4) so in den Einlaufstutzen (22), daß der innere Schlauchabschnitt (8) an der Innenwandung des Einlaufstutzens (22) formschlüssig bzw. bündig anliegt und der äußere Schlauchabschnitt (14) außen am Einlaufstutzen anliegt und dort mit einer Klemmvorrichtung, die z.B. ringbügelartig oder halbkreisförmig sein kann oder mittels Federn fixiert wird. Sodann wird die lösbare Verschlußeinrichtung (6) gelöst und das pulver- und granulatförmige Produkt kann frei über den Einlaufstutzen (22) in das Einspül- und Dosiergerät (20) rieseln. In einer bevorzugten Ausführungsform enthält der sack- oder beutelförmige Behälter ca. 5 kg Reinigungsmittel. Das Einfüll- und Dosiergerät kann in der an diese Beutelgröße (5 kg-Beute) angepaßten Ausführungsform ca. 2 kg Reinigungsmittel in seinem Pulverpuffervolumen aufnehmen, so daß das restliche Pulverprodukt im Vorratsbeutel verbleibt. Nach völligem Entleeren wird der sack- oder beutelförmige Behälter (1) vom Einlaufstutzen (22) gelöst, aus den Halterungshaken (44) genommen, zusammengerollt und in die zum System gehörigen Aufbewahrungsbehälter gebracht, die entsprechenden den Kriterien der Gefahrgutverordnung hergestellt sein sollen. In einer anderen Ausführungsform können z.B. auch Kunststoffsäcke für das Aufnehmen der eingerollten Beute (1) benutzt werden.

(c) Einem Einspül- bzw. Dosiergerät (20) (vgl. Figuren 3 und 4) zum Speichern bzw. Puffern der pulver- und granulatförmigen Detergentien und Wasserbehandlungschemikalien sowie zum Einspülen und Dosieren derselben, umfassend einen fest verschließbaren Behälter (20) mit einem Deckel (21) sowie einem hierin intergrierten Einlaufstutzen (22), einem Pulverpuffervolumen (23), einem verjüngten unteren Teil (24), einem im verjüngten unteren Teil (24) angeordneten und in der Höhe verschiebbaren Siebboden (26), der zur Aufnahme der zu lösenden, sich ggf. im Puffervolumen (23) befindenden Substanzen, bestimmt ist, einem unter dem Siebboden (26) im verjüngten unteren Teil (24) angebrachten, einschraubbaren blockförmig ausgestalteten Düsen- und Ablaufeinsatz. Der Deckel des Dosier- und Einspülgerätes (20) kann in einer besonderen Ausführungsform transparent ausgestaltet sein. In einer ganz besonders bevorzugten Ausführungsform ist auch das Gehäuse für das Dosier- bzw. Einspülgerät transparent ausgestaltet. Der Einlaufstutzen (22) trägt eine Klemmsicherungseinrichtung sowie eine Folienerkennungseinrichtung in Form eines Einrastfühlers mit Aufnahmebohrung und elektronischer Niederspannungssteuerung. Das Dosiergerät (20) weist im unteren verjüngten Teil (24) ein durchgehendes Innenschraubgewinde (27) sowie ggf. einen hierzu passenden Siebeinsatz (26) mit Außenschraubgewinde (28) bzw. mit einer sonstigen Einrastmechanik auf. Das Außenschraubgewinde (28) ist entweder ein zölliges Gewinde (Whitworth-Gewinde) oder ein metrisches Gewinde gemäß DIN 2999. Die Breite des Gewindes beträgt 20 mm bis 200 mm, vorzugsweise 25-70 mm.Der Deckel am Gehäuse des Dosiergeräts kann aus Metall oder Kunststoff, vorzugsweise aus transparentem Kunststoff, kann z. B. Polyacrylat, Polycarbonat, PVC bestehen. Der im Deckel integrierte Einlaufstutzen muß im Durchmesser an den Durchmesser des Ablaufschlauches des sack- oder beutelförmigen Behälters angepaßt sein und enthält eine Fixiervorrichtung, z.B. eine Klammer für den äußeren Ablaufschlauch sowie eine Aufnahmebohrung für einen Beutelwandfüller, welcher über eine elektronische Schaltung, z.B. einen Niederspannungsmelder, die Steuerung für die Wasserzufuhr nur freigibt, wenn und solange die Aufnahmebohrung durch die Folie des äußeren Ablaufschlauches verdeckt ist, so daß der Fühler nicht in die Aufnahmebohrung einrasten kann.Der Siebbodeneinsatz kann aus Metall, bevorzugt Edelstahl oder aus Kunststoff bestehen und trägt an seinem Außenumfang ein an das Innenschraubgewinde des Basiskörpers angepaßtes Schraubgewinde sowie Führungs- bzw. Eingriffelemente an beiden Oberfächenrändern, so daß dieser Siebbodeneinsatz von unten oder von oben in das Schraubgewinde des Basiskörpers eingeschraubt und dort in seiner Höhenposition in Abhängigkeit von den erforderlichen Sprühverhältnissen leicht verändert werden kann. Die Maschenweite des Siebes muß an die Kornstruktur des eingebrachten pulver- oder granulatförmigen Materials angepaßt sein und soll einerseits verhindern, daß ungelöste Partikel in den Laugenablauf fallen, andererseits genügend Wasser zur Bespülung und Auflösung der erforderlichen Produktmenge in der geforderten Zeit hindurchdringen lassen. Z.B. kann die Maschenweite ca. 0,5 mm und die verwendete Drahtstärke ca. 0,3 mm betragen.Das abschraubbare Wasserzufuhr- und Lösungsablaufelement (30) (Fig. 4) ist in möglichst massiver Ausführung gefertigt und kann gefräst oder aus Einzelteilen gefügt und verschweißt bzw. aus Kunststoff gespritzt sein. Es enthält im oberen Bereich ein an das Schraubgewinde des Basiskörpers angepaßtes Außengewinde, mittels dessen dieses Element zu Inspektions-, Reinigungs-, Wartungs- oder Reparaturzwecken leicht demontiert werden kann, ohne daß das gesamte Einspül- und Dosiergerät demontiert werden werden muß. Dies ist besonders vorteilhaft, da Störungen behoben werden können, ohne die auf dem Siebboden liegenden Pulver- oder Granulatreste, welche z.B. ätzend oder gesundheitsschädlich wirken können, entfernen zu müssen.In den massiven Körper eingearbeitet ist im Inneren eine Schraubgewindeaufnahme für Spritzdüsen z.B. aus Messing, Edelstahl, Polypropylen oder Teflon sowie an der Außenseite eine Aufnahme für eine Wasserzufuhr-Schnellverschluß-Kupplung mit Rückschlag-Ventil, welche als "selbstabsperrende Schnellverschluß-Kupplung" eine Demontage bei ansonsten laufendem Betrieb ermöglicht. Dies gilt auch für eine am unteren Ende angebrachte Gewindeaufnahme für eine Schnellverschluß-Kupplung zum Ableiten der erzeugten Konzentratlösung.Unter Bezug auf Fig. 4 sei zur Funktion des Düsen- und Ablaufeinsatzes (30) ausgeführt, daß durch die Einspritzdüse (31) die jeweils benötigte Produktmenge durch geregeltes Anspritzen der Siebfläche, auf der sich die Füllgüter, insbesondere das pulver- oder granulatförmige Reinigungsmittel, befinden, mit einem Lösungsmittel, z.B. Wasser herausgelöst wird. Das Abspülen erfolgt automatisch. Dabei wird die Menge der jeweils zu dosierenden Menge an gelöstem Füllgut, insbesondere an aufgelöstem pulver- oder granulatförmigem Füllgut in Abhängigkeit von dem jeweiligen Anwendungsverfahrenentweder über Dosierzeitimpulse und/oder über die elektrische Leitfähigkeit in der durch Auflösen in Wasser enthaltenen Lösung gesteuert. Die Zufuhr der so erhaltenen Konzentratlösung erfolgt über die Abflußleitung (62). Die Einspritzdüse (31) enthält wiederum ein Schraubgewinde, so daß sie in den Basiskörper (33) des Wasserzufuhr- und Lösungsablaufelements (30) eingeschraubt werden kann. Weiterhin ist in dem Basiskörper ein zur Seite geführtes Zuleitungsrohr (34) angebracht.Als Steuergerät bzw. als Meß- und Regelgerät (50) für die Wasserzufuhr und/oder Produktzufuhr wird, insbesondere bei Verwendung von Produkten, welche in Lösung den elektrischen Strom gut leiten, vorzugsweise eine leitwertgesteuerte Regelelektronik mit Intervalldosierung, d.h. einstellbaren Sprühdauern und Pausenzeiten, verwendet.

(d) Als Aufnahme-Behälter zum Aufbewahren und Transportieren der entleerten sack- oder beutelförmigen Behälter werden in dem System an sich bekannte Säcke, Fässer, Trommeln oder Kisten aus chemisch und mechanisch resistentem Material, vorzugsweise aus Kunststoffen wie Polyethylen oder Polypropylen verwendet. Wesentlich ist hierfür eine sichere Ausgestaltung, so daß auch die rechtlichen Voraussetzungen, z.B. gemäß Gefahrgutverordnung, für die Lagerung und den Transport von entleerten sack- oder beutelförmigen Behältern mit eventuellen Schad- oder Gefahrstoff-Anhaftungen erfüllt sind.

The system according to the invention can consist of the following elements:

(a) A holding device (40) for attaching and adjusting the storage bag (1, 102), the dosing or induction device (20) or the buffering and dosing device (120) and the measuring and control device (50) Made of mechanically and chemically stable material, preferably made of stainless steel profile. The holding device (40) consists of a carrier or back element (41) with a cross member (46) attached to the upper section (42), which has holding or clamping devices, in particular height-adjustable hooks (44). The height of the hooks can be adjusted, for example, by means of a screw thread, in order to enable the bag (1, 102) with the contents to be adjusted relative to the induction device. In the lower section (45) there are means for receiving the metering device (120, 20), in particular bores (47) for the housing. In another embodiment, the height of the upper crossmember (44) can be adjusted by means of a rotating device on the back element or crossmember so that the pouch suspended thereon can be adjusted relative to the induction unit. Bolt locking bores for wall mounting can be provided on the back of the carrier or back element (41). The holding device (40) can be designed as a wall or standing system.

(b) A refillable bag or sack-shaped product container (1) made of flexible, water vapor-tight material, preferably made of plastic, particularly preferably made of halogen-free plastic such as polyethylene, polypropylene, polyamide or the like or so-called natural plastics such as starch (s) or modified starches made from blends from starch (s) with the aforementioned materials. The plastic material should preferably be transparent or at least partially transparent in order to be able to recognize the fill level. A plastic material is particularly suitable, which can be welded in a manner known per se by suitable temperature effects. The sack-shaped or bag-shaped containers (1) can have any filling volume adapted to the requirements, for example approximately 500 cm ³ to approximately 1000 dm ³ . However, filling volumes between 2.5 dm ³ and approximately 50 dm ³ are particularly preferred for the system according to the invention, since simple handling is possible here. The wall thickness of the flexible container wall (s) must be adapted to the stability requirements depending on the filling quantity; For example, with a double-walled design and a filling mass of 5 kg, the outer wall thickness can be approximately 100 µm and the inner wall thickness approximately 50-70 µm. The wall thicknesses must be optimized so that reliable safety during transport and use is achieved with the least possible use of materials. The essential elements in the design of the bag-shaped or sack-shaped container (1) are as follows:

1. At least in the drain part (13) double-walled side walls (2) which enclose the longitudinal axis (L) of the container (1) and in the connecting part (4) of the drain part (13) are tubular. The inner part (8) of the container wall in the lower outlet part (13) is designed such that it is sealed independently of and separately from the outer container wall (14) by sewing, gluing, tying, clipping or, particularly preferably, by welding at (7) can. In a special embodiment, the bag-shaped or sack-shaped container (1,) can be designed as double-walled in the entire container wall surface area. Furthermore, the lower part of the container (1) is tubular. In the case of the system for granular or powdery filling materials, the inner wall (8) is form-fitting or flush against the inner wall of the inlet connection (22) of the induction or dosing device, while the outer wall (14) outside on the connection (22) is present.

2. On the two opposite sides of the container (1) a closure (5) at the upper edge of the container (1) and possibly a closure (7) for the inner part (8) of the container wall at the lower end of the hose-like drain part ( 4). The closure (5) and possibly the closure (7) at the top or at the bottom of the container can have been accomplished by sewing, tying, clipping or a so-called plastic zipper or particularly preferably by welding.

3. At least two hanging means incorporated at the upper edge, in particular eyelets for hanging the container (1) onto the hanging hooks of the holding device (40). These eyelets are preferably made of the same material as the walls of the container and in particular are tightly welded to it.

4. A releasable closure device (6) for jointly closing the inner (8) and the outer (14) tubular container section above the closure (7) for the inner tubular container section (4). This closure device (6) can be achieved by tying, clipping or, in a particularly preferred embodiment, by a so-called clamp closure strip (cf. FIG. 5). This clamp closure bar consists of a relatively rigid, but nevertheless expandable on the open side (53) C-profile-shaped rail (51), preferably made of suitable plastic material such as polyamide and a flexible plastic cord (52) that fits into the profile or rubber.

To close the double-walled tubular container section (4), the C-profile rail (51) is brought perpendicular to the hose direction on one side of the container section and from the other side the flexible cord (52) with the now four-fold flexible container walls is placed in this rail pressed, so that a tight closure results. Before filling the sack or bag-shaped container (1), in one embodiment this is closed with a closure (7) for the inner drain hose (8) and a detachable common closure (6) lying above it. provided for the inner (8) and the outer (14) hose drain, so that the lower hose section is closed; the filling material is then filled in and then the upper edge of the bag or bag-shaped container is closed at (5), in particular by welding. In another embodiment, the upper edge at (5) of the bag or bag-shaped container can be closed, in particular by welding and are then filled from the other side of the container with the contents, whereupon the releasable closure (6) is attached. With this procedure, no closure is attached to the inner drain hose (8) at (7). In the case of the system for pulverulent or granular filling goods, the filled prey is hung in the hook of the holder by means of the eyelets described above and opened if necessary in a suitable manner, for example by cutting the weld seam (7), the inner wall section (8) and leads the lower tubular part of the container (4) into the inlet connection (22) such that the inner hose section (8) on the inner wall of the inlet connection (22) fits positively or flush and the outer hose section (14) rests on the outside of the inlet connection and there with a clamping device, which can be ring-shaped or semicircular, for example, or is fixed by means of springs. Then the releasable closure device (6) is released and the powder and granular product can trickle freely over the inlet connection (22) into the induction and dosing device (20). In a preferred embodiment, the sack or bag-shaped container contains approximately 5 kg of detergent. In the embodiment adapted to this bag size (5 kg loot), the filling and dosing device can accommodate approximately 2 kg of detergent in its powder buffer volume, so that the remaining powder product remains in the storage bag. After completely emptying, the sack or bag-shaped container (1) is detached from the inlet connection (22), taken out of the mounting hooks (44), rolled up and brought into the storage containers belonging to the system, which are to be produced according to the criteria of the dangerous goods regulation. In another embodiment, for example, plastic bags can also be used to hold the rolled up prey (1).

(c) A induction or dosing device (20) (see FIGS. 3 and 4) for storing or buffering the powdered and granular detergents and water treatment chemicals and for inducting and dosing them, comprising a tightly closable container (20) with a Lid (21) and an integrated inlet connection (22), a powder buffer volume (23), a tapered lower part (24), a sieve bottom (26) arranged in the tapered lower part (24) and displaceable in height, which is used to hold the substances to be dissolved, which may be located in the buffer volume (23), is determined by a screw-in, block-shaped nozzle and drain insert which is fitted under the sieve plate (26) in the tapered lower part (24). In a special embodiment, the lid of the dosing and induction device (20) can be made transparent. In a very particularly preferred embodiment, the housing for the dosing or induction device is also designed to be transparent. The inlet connector (22) carries a clamp securing device and a film detection device in the form of a snap-in sensor with a receiving bore and electronic low-voltage control. The dosing device (20) has a continuous internal screw thread (27) in the lower tapered part (24) and, if appropriate, a matching sieve insert (26) with an external screw thread (28) or with another latching mechanism. The external screw thread (28) is either an inch thread (Whitworth thread) or a metric thread according to DIN 2999. The width of the thread is 20 mm to 200 mm, preferably 25-70 mm. The cover on the housing of the dosing device can be made of metal or Plastic, preferably made of transparent plastic, can e.g. B. polyacrylate, polycarbonate, PVC exist. The diameter of the inlet connector integrated in the lid has to be adapted to the diameter of the drain hose of the sack or bag-shaped container and contains a fixing device, e.g. a clip for the outer drain hose and a mounting hole for a bag wall filler, which is connected via an electronic circuit, e.g. a low-voltage detector. the control for the water supply only releases if and as long as the receiving hole is covered by the film of the outer drain hose, so that the sensor cannot snap into the receiving hole. The sieve bottom insert can be made of metal, preferably stainless steel or plastic, and carries on its outer circumference a screw thread adapted to the internal screw thread of the base body and guide or engagement elements on both surface edges, so that this sieve bottom insert is screwed from below or from above into the screw thread of the base body and there in its height position can be easily changed depending on the required spray conditions. The mesh size of the sieve must be adapted to the grain structure of the powder or granular material introduced and should on the one hand prevent undissolved particles from falling into the lye drain and on the other hand allow enough water to rinse and dissolve the required amount of product to penetrate in the required time. For example, the mesh size can be approx. 0.5 mm and the wire thickness used approx. 0.3 mm. The screwable water supply and solution drain element (30) (Fig. 4) is made as solid as possible and can be milled or assembled from individual parts and welded or injection molded from plastic. It contains in the upper area an external thread adapted to the screw thread of the base body, by means of which this element can be easily dismantled for inspection, cleaning, maintenance or repair purposes without the entire induction and dispensing device having to be dismantled. This is particularly advantageous since malfunctions can be remedied without having to remove the powder or granulate residues lying on the sieve bottom, which can be corrosive or harmful to health, for example. A screw thread holder for spray nozzles, e.g. made of brass, is integrated into the solid body. Stainless steel, polypropylene or Teflon and on the outside there is a holder for a water supply quick-release coupling with a non-return valve, which, as a "self-locking quick-release coupling", enables disassembly while operation is otherwise ongoing. This also applies to a threaded receptacle attached to the lower end for a quick-release coupling for draining off the concentrate solution produced. With reference to FIG. 4, the function of the nozzle and drain insert (30) is that the injection nozzle (31) requires the one required in each case Product quantity is dissolved out with a solvent, for example water, by controlled spraying on the screen surface on which the contents, in particular the powdered or granular detergent, are located. Rinsing is done automatically. The amount of the amount of dissolved filling material to be metered in each case, in particular of dissolved powdered or granular filling material, is controlled depending on the respective application method either via metering time pulses and / or via the electrical conductivity in the solution contained by dissolving in water. The concentrate solution thus obtained is supplied via the drain line (62). The injection nozzle (31) in turn contains a screw thread, so that it can be screwed into the base body (33) of the water supply and solution drain element (30). In addition, a supply pipe (34) guided to the side is attached in the base body. As a control device or as a measuring and regulating device (50) for the water supply and / or product supply, in particular when using products which conduct the electrical current well in solution , preferably conductance-controlled control electronics with interval metering, ie adjustable spraying times and break times, are used.

(d) In the system, known sacks, barrels, drums or boxes made of chemically and mechanically resistant material, preferably made of plastics such as polyethylene or polypropylene, are used as the receptacle for storing and transporting the emptied sack or bag-shaped containers. A safe design is essential for this, so that the legal requirements, for example in accordance with the Dangerous Goods Ordinance, for the storage and transport of emptied sack-shaped or bag-shaped containers with any harmful or hazardous substance build-up are also met.

The containers (1,) according to the invention can be equipped with filling goods be the solid, powder and / or granular and / or liquid and / or pasty washing, cleaning, bleaching, disinfecting and / or Preservatives and / or other water treatment agents and / or Process chemicals include. There are common, the average specialist known fillings are used, e.g. in the above DE-C-4 204 489. However, powder and / or are particularly preferred granular products. Water-soluble, basic or acidic substances, e.g. Caustic soda or citric acid is used will.

The following are examples of compositions for the fillings indicated (each in% by weight).

example 1

A B C. D Sodium tripolyphosphate 44 29 55 10th Caustic soda beads 40 - 18th - Soda (powder) 12th 15 - 85 Sodium dichloroisocyanurate 2 H ₂ O 3rd 5 2nd - Sodium metasilicate (anhydrous) - 50 25th - non-ionic surfactant (Lutensol ® LF 131) 1 1 - 5.

Example 2

- Sodium hydrogen sulfate powder 60% by weight - Citric acid monohydrate powder 10% by weight - Sodium sulfate (anhydrous) powder 29.8% by weight - nonionic surfactant (powder) (tallow fatty acid alcohol with 25 moles of ethylene oxide) 0.1% by weight - Lemon fragrance 0.1% by weight.

A further advantageous embodiment of the invention exists in that one preferably transparent, movable shielding or protective device, e.g. a protective screen made of unbreakable, chemical-resistant plastic material, is attached around the entire dosing system to a Danger to the operating personnel due to mechanical damage to the to avoid sack or bag-shaped flexible storage containers.

Claims (18)

1. Packaging and metering system for pulverulent and granular washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals, comprising:

   (a) a refillable flexible container (1) capable of being filled with pulverulent and granular washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals,

   with side walls (2) which have a double-walled design at least in the discharge part (13) and which surround the longitudinal axis (L) of the container (1) and are of hose-like design in the connection part (4) of the discharge part (13),

   with, on the two opposite sides of the container (1), in each case a closure (5) at the upper edge of the container (1) and, if appropriate, a closure (7) for the inner part (8) of the container wall at the lower end of the hose-like connection part (4), and with a releasable fastening device (6) for the inner part (8) and outer part (14) of the container wall, the said fastening device being arranged in the part (4) of hose-like design, and, if appropriate, suspension means (10, 11) mounted on the closure (5) or at the upper edge of the container (1);

   (b) a metering and flushing-in device (20) for storing or buffering the washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals, and for flushing in and metering these, comprising:

   a container (20) with a cover (21) and an inflow connection piece (22) integrated therein, a buffer powder volume (23), a narrowed lower part (24), a vertically displaceable sieve tray (26) which is arranged in the narrower part (24) and which is intended for receiving the substances which are to be dissolved and, if appropriate, are located in the buffer powder volume (23), and a screw-in nozzle and discharge insert (30) of block-like design which is fitted under the sieve tray (26) in the narrowed lower part (24);

   (c) if appropriate, a measuring and regulating instrument (50) for the supply of water for feeding at least one spray nozzle (30) fitted in the discharge insert;

   (d) a holding device (40) for fitting and adjusting the powder stock container (1), the metering and flushing-in device (20) and, if appropriate, the measuring and regulating instrument (50); and, if appropriate,

   (e) chemically and mechanically stable receiving containers for the storage and transport of the emptied containers (1).
2. System according to Claim 1, characterized in that the cover of the metering and flushing-in device is of transparent design and, if appropriate, carries an inflow connection piece (22), with clamp-securing device, and a foil-type detection device in the form of a snap-in sensor, with receiving bore and electronic low-voltage control.
3. System according to Claim 1, characterized in that the metering and flushing-in device has, in the lower narrowed part (24), a continuous internal screw thread (27) and, if appropriate, a sieve insert which fits the latter and which has an external screw thread (28) or another snap-in mechanism.
4. System according to Claim 1, characterized in that the sieve insert fitting into the continuous screw thread (27) of the metering and flushing-in device can be screwed in and unscrewed from above and from below and, at the two surface edges, contains guide or engagement elements (29) for making screwing easier.
5. System according to one of Claims 1 to 4, characterized in that the flushing-in and metering device is connected for conductivity measurement to the measuring and regulating instrument (50) and/or an electrical safety switch and/or an electrical control valve and/or an optical and/or acoustic empty warning indicator and/or a measuring cell.
6. System according to Claim 1, characterized in that the connection points of the nozzle, water-connection and solution-discharge insert for the supply of spray water and for discharging the solution from the screw-in block-like nozzle, water-connection and solution-discharge insert (30) are equipped with self-sealing quick-action fastening couplings.
7. System according to one of Claims 1 or 6, characterized in that the screw-in block-like nozzle, water-connection and solution-discharge insert (30) is made of metal or plastic and is milled, assembled from individual parts and welded or injection-moulded or cast.
8. System according to Claim 1, characterized in that the suspension device (46) is vertically adjustable and, if appropriate, the suspension elements of the holding device (40) are designed as a hook, a knob, if appropriate with an adjustable screw thread, or as a clamping batten.
9. System according to Claim 1, characterized in that the holding device (40) consists of a carrier or back element (41) with a crossmember, which is fitted to the upper portion (42) and has holding or clamping devices, and a crossmember (44), which is fitted in the lower portion and which is provided with means for receiving the metering device (20).
10. System according to Claim 1, characterized in that the refillable flexible container (1) is of bag-like or pouch-like design and, if appropriate, consists of steam-proof and transparent plastic.
11. System according to one of the preceding Claims 1 to 10, characterized in that the pouch-like or bag-like container (1) is of double-walled design in the entire container-wall surface region.
12. System according to one of the preceding Claims 1, 10 and 11, characterized in that the bag-like or pouch-like container (1) has at least two suspension lugs (10, 11) in the upper container part, the lugs (10, 11) preferably consisting of the same material as the walls of the container and, in particular, being sealingly welded to the walls.
13. System according to one of the preceding claims, characterized in that the closure (5) at the upper edge of the bag-like or pouch-like container (1) or the closure (7) has been made by stitching, tying up or clipping shut or by means of a so-called plastic slide fastener or by welding.
14. System according to Claim 1, characterized in that the releasable common fastening (6) for the inner (8) and outer (14) hose discharge is equipped, as a clamp-fastening batten (50), with a rigid rail (51) in the form of a C-profile and with a flexible insertion cord (52).
15. System according to Claims 10 to 14, characterized in that the connection part (4) of the discharge part (13) of the container (1) is designed in such a way that it can be introduced into the inflow connection piece (22) of the flushing-in device (20), so that the inner wall (8) sits inside the connection piece (22), whilst the outer wall (14) bears on the outside of the connection piece.
16. System according to one of the preceding Claims 1 to 15, characterized in that the filled container (1) is suspended in the holding device by means of the suspension elements (44), if appropriate after the closure (7) has been opened the lower hose-like part (4) of the container (1) is introduced into the inflow connection piece (22) in such a way that the inner hose portion (8) rests on the inner wall of the inflow connection piece (22), the outer hose portion (14) is then fixed to the outer wall of the inflow connection piece (22), and then the releasable fastening device (6) is released, so that the pulverulent or granular product can trickle into the flushing-in and metering device via the inflow connection piece (22).
17. System according to one of the preceding Claims 1 to 16, in particular to be used for dishwashers and washing machines, which is designed in such a way that washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals are dispensed from the metering and flushing-in device (20) when a stream of watery liquid is applied to a surface of the washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and process chemicals, the said surface being exposed to this stream.
18. Method for flushing in and metering pulverulent or granular washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals, comprising the following steps:

    (a) insertion of a flexible container (1), filled with pulverulent or granular washing, cleaning, bleaching, disinfecting and preserving agents and/or other water-treatment and/or process chemicals, into a holding device (40), opening of the closure (7) of the lower hose-like part (13) of the container, so that the said part is introduced into the inflow connection piece (22) of a metering and flushing-in device (20), so that the inner hose portion (8) rests on the inside of the inflow connection piece (22) and the outer hose portion is fixed to the outside of the inflow connection piece, and then the releasable fastening device (6) is released, so that the filling material can trickle into the flushing-in and metering device (20) via the inflow connection piece (22),

    (b) supply of a suitable solvent, in particular of watery liquids, to form a concentrate solution by flushing out detergents and water-treatment chemicals into the powder buffer volume (23),

    (c) discharge of the concentrate solution formed through the discharge conduit to the consumption point, in particular of a dishwasher or washing machine, if appropriate the metering being checked as a function of time by measuring the conductivity in the dishwashing or washing solution formed.

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