EP1012052A1 - Packaging for a paste product - Google Patents

Abstract

Packaging for a paste product is provided in the form of a flexible, closed storage container which has a sealable outlet opening on the underside. The opening is adapted for connection to a metering device which conveys the product using negative pressure, permitting substantially complete emptying of the container. To this end, the flexible storage container is configured with a thinner wall in its upper section than in its lower section.

Description

"Packaging for a pasty product"

The invention relates to a packaging for a pasty product in the form

a flexible closed storage container, which has a bottom

has closable outlet opening with a means of negative pressure

promoting metering device can be coupled.

Liquid to pasty detergents are known. These are detergents

generally tailored to household needs, which results

has that they should be sufficiently liquid and pour out easily and

let it dose. Since they are also within a larger temperature

maturation range should be stable in storage, one usually does not come without the

Use of organic solvents and / or hydrotropes

Additives. However, these additives are wash-inactive, comparatively

complex and require additional packaging volume or additional

che transport and storage capacity. In addition, a content disturbs above all

flammable solvents because of the comparatively high

Throughput of detergents in laundries additional

Safety precautions are required. Detergent concentrates of this type are

therefore not usable or only very useful for laundries.

It is therefore mainly powdery in laundry companies Detergent used. Because especially in large companies with extensive

Automation the exact dosing of such means is labor-intensive,

the funds are usually stored in pre-dissolved form as base liquors and

dosed, i.e. you make an aqueous concentrate, which then the individual

Consumption points is fed. Usually in laundries

However, detergents used contain relatively high proportions of

Washing alkalis, which are only soluble in cold water to a limited extent, and moreover

Salting effects lead. They cause phase separation, with the result

that the organic components, especially the nonionic surfactants

and soaps, separate and cream. One must therefore be relatively strong

watery dilution and the base liquors are also constantly intensive

mix and circulate in order to also in the feed lines

to prevent the consumer from separating individual components.

Such processes therefore require large investments for spacious

Mixing container and the associated statics for mixer and

Conveyors and a constant supply of energy for tempering and

Pumping around the stock liquors.

A detergent that meets these requirements is described in EP 0 295 525

A1 described. It is a pasty detergent that

special handling requirements for dosing and mixing

with water as a solvent. Such detergent pastes are in

large containers are transported and stored. It is suggested this Storage containers in a removal device above the metering device

put and the paste descending down. In case of use

generic packaging with a flexible supply container

proposed a follow-up plate on the container in the container

to put the pressure on the storage container to a large extent

Ensure emptying of the storage container.

It has been found that the follower plate is very heavy

must if a steady sinking and an extensive emptying of the

Storage container should be ensured. However, this has the disadvantage that

handling such large weights is very difficult, which increases the risk of

Operating errors is increased. It also makes it very good overall

stable and therefore complex construction for the inclusion of the packaging

required.

The object of the invention is therefore to further develop packaging in such a way that

that with simple means a safe and practically complete emptying of the

Storage container is possible.

This task is accomplished with packaging of the type described in the introduction

solved according to the invention in that the flexible supply container in its

upper area with a smaller wall thickness than in its lower area

is trained. With such training can be done easily and with little effort

Means are caused that the packaging is largely completely emptied

without the need for tools such as a heavy follower plate.

The area follows due to the product removal caused by negative pressure

with a smaller wall thickness in the direction of the outlet opening and thereby lies on

the walls of the area with greater wall thickness, making similar

a pasty plate in a cartridge, the pasty product there

is largely stripped.

It is particularly advantageous that the flexible supply container from one

lower part with greater wall thickness and an upper part with smaller

Wall thickness exists, which are tightly connected. The packaging

can be easily produced in this way, for example, it can consist of two

bag-shaped parts with different wall thickness welded together

become.

In order to optimize the emptying process, it is advantageously provided that the

the upper and lower parts have approximately the same volume. Possibly. can here

a different size ratio can also be selected depending on the product.

It has been found to be advantageous for optimal residual emptying that the

upper area about three times smaller than the lower area Has wall thickness, the wall thickness in the lower region about 0.6 mm

is and used as the material polyethylene or polyethylene mixtures

become. Of course, the wall thickness can also be dimensioned differently.

The invention is, for example, closer below with reference to the drawing

explained. This shows in:

Fig. 1 is a side view of a Ver¬ invention

pack in fully filled condition,

Fig. 2 shows the packaging of Figure 1 in largely empty

Condition and

Fig. 3 shows a Ver¬ placed on a metering device

pack.

A packaging according to the invention for a pasty product consists of

a flexible closed storage container 1, which at

Embodiment consists of two bag-shaped or bag-shaped parts, namely

an upper part 2 and a lower part 3. Both parts 2 and 3 exist

preferably made of a plastic film, the wall thickness of the upper

Part 2 is smaller than the wall thickness of the lower part 3, for example

the wall thickness of the upper part 2 is 0.2 mm, while the wall thickness of the lower part is about three times larger, i.e. 0.6 mm. Both parts 2, 3

are tightly circumferential to form the supply container 1

welded, the area of this weld is designated 4. simultaneously

a support ring indicated by 5 can also be welded in.

On the underside is the supply container 1 with a closable outlet opening 6

provided, which is adapter-shaped and connecting to a

enables dosing device described below. Recognizable the

upper part 2 and lower part 3 have approximately the same volume, depending on

Product size ratios can also be chosen differently.

Is now the pasty product by vacuum from the outlet opening 6

aspirated, the upper thinner part 2 follows the emptying

Storage container 1 in the direction of the outlet opening 6 and thereby lies against the

Walls of the lower thicker part 3, as shown in Figure 2. The

the upper thin part 2 grazes, similar to a follower plate in a cartridge,

the pasty product for the most part and ensures a good one

Residual emptying of the storage container 1 without additional aids such as a

Follower plate, would be required.

A storage container designed in this way is, as shown in FIG. 3, for inclusion in

determines a metering device, which is generally designated 7. This

The metering device has a frame on which a dimensionally stable container 8 is placed, which can be equipped with handling handles 9. In these

Container 8 is a storage container 1 according to the invention adjustable. Bottom side

the container 8 is provided with a central opening 10 through which the

adapter-shaped outlet opening 6 of the supply container 1 into the metering device

7 protrudes and there tightly with the access 11 of the metering device 7

is connectable. The structure of the metering device 7 in detail is one

A person skilled in the art, so that there is no need to explain this in more detail.

In addition to the pasty product from the storage container 1, the

Dosing device 7 supplied via the inlet 12 water through the in the area

The resulting negative pressure becomes the water with the pasty product

mixes and passes through the outlet 14 from the metering device 7 in the

desired dosage ratio.

Of course, the invention is not limited to the illustrated embodiments

limited. Further configurations are possible without the basic idea

leave. So the dimensions of the storage container 1 can be dependent

of course be chosen differently from the respective pasty product,

Of course, a differently designed metering device can also be used

become and so on.

Claims

Expectations:

1. Packaging for a pasty product in the form of a

flexible closed storage container, which has a

has closable outlet opening with a means of negative pressure

conveying metering device can be coupled,

characterized,

that the flexible storage container (1) in its upper region (2) with a

less wall thickness than in its lower region (3).

2. Packaging according to claim 1,

characterized,

that the flexible storage container (1) from a lower part (3) with a larger

Wall thickness and an upper part (2) with a smaller wall thickness,

which are tightly connected.

3. Packaging according to claim 2,

characterized,

that the upper and lower parts (2, 3) are approximately the same

have a large volume.

. Packaging according to claim 1 or one of the following,

characterized,

that the upper area (2) compared to the lower area (3) approximately

has three times the wall thickness.

5. Packaging according to claim 4,

characterized,

that the wall thickness in the lower region (3) is approximately 0.6 mm.