DK175675B1 - Package for liquid concentrate - comprises outer container with shock absorbing base and inner water soluble or disposable envelope contg. concentrate - Google Patents

Abstract

Package for liquid concentrate comprises an outer container with a shock absorbing base and an inner water soluble or dispensible envelope containing the liquid concentrate. Pref. a flexible strip forms the shock absorbing section and joins the outer container wall to the base. The flexible strip can be of sinuous or corrugated form and may form an internal shoulder on which the inner container rests and provides a space into which liquid leaking from the packet can collect. The outer container is pref. substantially rigid e.g. made of polypropylene. A removable lid of a paper/aluminium/plastic laminate can be provided. The plastic of the lid can be polyethylene terephalate and is pref. heat sealed to the container.

Description

DK 175675 B1 I

The present invention relates to a package according to I

Claim 11, preamble, as known from GB-A-1,524,037.

Chemicals such as pesticides and herbicides and others

potentially harmful materials are often manufactured as an I

5 concentrated solution or dispersion in an organic liquid. IN

Such chemicals are typically supplied in a metal or blower I

molded plastic container with a screw closure. For use I

a quantity of I of the chemical pesticides or herbicides is measured

of the concentrated material from the container and mixed I

10 then with a large volume of water before spraying it onto an I

place to be treated, or on plants. Such con- I

centered chemical solutions are usually very I

In toxic ,, so much care must be taken in measuring and bi- I

of these to avoid splashing of the liquid chemical

15 potassium and to avoid contact with humans and animals

with the concentrated solution or dispersion. IN

Efforts have been made that have been

concentrated on the design of containers to minimize I

the risk of accidental spillage or splashing when their I

20 contents are used and also to reduce liquid residues, I

which remains in the containers after use. There is in

wide-neck plastic containers have been used to

j facilitate the pouring of their liquid contents. Blow molded plastic containers have been fabricated with hollow handles, 25 where the hollow handles are insulated from the container body to avoid fluid retention in the handle.

Nevertheless, with the present packaging it is relatively easy to waste the contents during the mixing process with the consequent risk of environmental pollution and the risk of contact with humans and animals. It is also rare for the container to be emptied, and farmers and other users tend to have partially full containers standing around. These represent a further danger. Even when all the content has been used, it is difficult to get rid of the empty container. It is also difficult to wash the containers and measuring instruments as they concentrated

I DK 175675 B1 I

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solutions or dispersions are handled in, · sufficiently. IN

These devices pose a further risk to personnel I

H and the environment. IN

H It has also been proposed to use agricultural I

H 5 micelles in a container comprising a screw fitting adapted to I

H to be screwed onto a corresponding fitting on a syringe I

H thanks. The contents of the container are released only when there is a liquid

H tight seal between the tank and the container. There are practical ones

H difficulties in ensuring widespread use of such I

10 system considering the need for standardization of screw- I

fitting sizes and the possibility of leakage, if any

H a liquid-tight seal is not obtained. IN

Packaging of solid chemicals has also been proposed

potassium in water-soluble containers, but such containers are I

15 usually full and no particular difficulties arise

H by their production or by their use. IN

It has also been proposed to package chemicals I

You in a water-soluble container which releases only the packaged

chemical after contact with water. Such proposals are not yours

20 have been followed in practice for liquid chemicals due to I

limitations of known water-soluble containers. Such you

Containers have been prone to fractures if they contained

substantial amounts of fluid. It has also proved difficult

avoiding small holes at heat-sealed joints I

I 25 in the container and unacceptable weakness in the container material, I

which is adjacent to heat-sealed joints. IN

The present invention seeks to avoid disadvantage

In the pears of known packages and to provide a package, I

Containing a non-aqueous liquid in a substantial amount of I

I 30 and having one or more of the following advantageous features:

In The packaged chemical is released only after contact I

You with water to which it is to be dissolved or dispersed, which you

You minimize the possibility of accidental contact of the undiluted

In material with the environment or with people.or animals. IN

The chemical may be provided in unit dosage form as I

You are suitable for dilution with a predetermined amount of I

DK 175675 B1 I

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water, which eliminates the need to measure the unforeseen

thinned chemical. IN

The packaged chemical is easy to use: it

packaged chemical can simply be placed in water before I

5 use of the chemical. IN

The need for leaching of residual chemical from

containers to make them safe to get rid of elimi- I

ned. Containers which have been in contact with the packaged chemical remain uncontaminated, which facilitates their removal.

. 10 scraps. IN

A substantial volume of liquid, e.g. more than 0.25 l

per liter, may be packaged without a significant risk of leakage

or the failure of the packaging. IN

According to the present invention, I is provided

15 thus a package of the above type, wherein the packaging I

contains from 0.25 to 3 liters of liquid and the liquid comprises I

an additive for increasing the viscosity of the liquid. IN

It will be understood that liquid or solid chemicals

can be dispersed in the organic liquid, the dispersion 120 e.g. may be an emulsion or a suspension.

Preferably, the sheath containing the chemical is only partially full, so that the sheath comprises an air gap which generally occupies from 2 to 40%, preferably from 4 to 10%, of the volume of the sheath. A larger gap can be used, but is probably less attractive commercially. Partial filling of the casing reduces the risk of breakage of the casing if subjected to shock, and reduces the risk of breakage or leakage in the event of an increase in temperature which could cause the bag to swell or sweat.

The volume of the chemical is preferably 0.5-2 liters, especially preferably 0.5 liters.

With such packages, the aforementioned difficulties of the prior art are avoided. To use the packaging, an appropriate amount of water is metered into a container such as a j

35 spray tank and then removed, e.g. tipped, holstered, I

eg. a bag or package, from the container and placed whole

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in the container with a predetermined amount of water and bi-I

des. The contents of the casing are released when e.g. the material, out I

from which is produced e.g. a bag or package, I

H is dissolved or dispersed in the water together with the chemical. IN

H 5 Thus, there is no possibility of wasting the liquid I

H chemical as it is still in the form of a closed and sealed I

H packaging when mixed with the large volume of water. Under I

The H mixture is any splashing that occurs, only splashing of I

H a diluted chemical and this is obviously not so

10 toxic to humans or so harmful to the environment if you

splashes or spills should happen. IN

The chemicals which may be packaged include those which I

H is potentially toxic or harmful or destructive

H for health or the environment. They include pesticides, e.g. IN

H 15 fungicides, insecticides or herbicides {e.g. hydroxy-I

benzonitrile herbicides, e.g. bromoxynil or ioxynil I

or derivatives thereof, such as the salts or esters, e.g. IN

in heptanoates or octanoates) and, more generally, chemicals, I

which must be dissolved or dispersed in a large volume of water

20 or aqueous liquid, such as compounds, e.g. metronidazole, I

used to combat the destruction of industrial aqueous

In liquids or compounds for addition to aqueous circuit I

races, e.g. residential or industrial heating systems, pre- I

binders for addition to swimming pools, photographic I

25 materials, inks, dyes, non-aqueous organic I

In acids and cement additives. The pesticides include I

eg. molluscicides for addition to e.g. ponds or I

In streams. When the sheath material is a PVA, borates, chlorine should be used

rides and chlorates generally are not present in the packaging

In 30 liquid liquid in amounts which cause deterioration of the shelf

I! the star material or said material must be protected

In contrast. IN

Suitable water-soluble or dispersible materials, I

I which are insoluble in the organic solvents used

For dissolving or dispersing the chemical, I comprises

In polyethylene oxide or methyl cellulose, but preferably I

DK 175675 B1 I

the casing, e.g. a bag or package made of or I

comprises polyvinyl alcohol film, i.e. partial or full H

alcoholized or hydrolyzed, e.g. 40-99%, preferably I

70-92% alcoholized or hydrolyzed, polyvinyl acetate-I

5 foil. IN

The polyvinyl alcohol film may be non-oriented, mono- H

axially oriented or biaxially oriented. Water soluble I

materials are preferred. The materials used are general

soluble in cold water; PVA, soluble in cold water, I

10 is preferred. It will be understood that other I can be used

materials for dissolving the packaged liquid or

dispersed in hot or hot water. IN

The maximum tensile strength of the casing material is preferably

at least 20, more preferably 30-80 N / mm 2, and the fracture extension I

15 is preferably 200-380%, more preferably 220-350%. Try it out

Generation for these values is generally carried out at 23 ° C and 50% I

relative humidity. The thickness of the casing material is preferably I

10-500, more preferably 20-100 μπι. Combinations of these I

physical properties are particularly preferred. IN

120 The polyvinyl alcohol material can be extruded as an I

tubes and then inflated to biaxial orientation thereof, or I

more preferably it can be cast. When using a cast I

In foil, as is preferred, a tube is formed of the foil and I

the edges are heat-sealed along the length of the pipe. The tube is sealed

25 at one end and then filled with the desired amount of I

chemical. The tube is sealed again over the amount of the chemical I

to close the case and form e.g. a sealed bag or package. Preferably, an air gap is left above the liquid in the closed casing, and furthermore, the combined volume of air space and liquid is preferably less than the maximum possible capacity of the casing so that it is loosely filled and can be bent.

When the heat seals are made to form or close the liquid-containing casing in the packaging of the invention, the sealing temperature is generally at 140-220 ° C, preferably 160-180 ° C. The jaw pressure is generally 1 to 3.5 in

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preferably 1.5-2.5 kg / cm 2. The holding time is generally I

of 200 msec. to 1.5 sec., preferably 450 msec. for 1 sec. IN

To ensure optimum processability, heat is carried out

the seal generally at 15-25 ° C and a relative humidity I

5 (RH) of 15-85%. The relative humidity is preferably at 1

35-55%. Some routine trials may be necessary to achieve I

of suitable heat seals depending on the casing material, I

eg. the particular quality and thickness of the PVA of choice. IN

The quality of the seals can be checked by visual I

10 observation for opaque areas or bubbles, I

or e.g. by inflating bags without liquid content. IN

Defects in the seal may cause the seal to have

lack of water solubility or water dispersibility. Be- I

the co-sealing process can be performed on conventional heat sealing I

15 equipment which allows the control and variation of seal I

jaw temperature, jaw pressure and holding time. IN

In practice, the casings of the invention should release I

their content of less than approx. 10 minutes. When a plan- I

tea protection chemical packaged, the packaged I

20 chemicals are placed in the syringe barrel of a conventional I

spraying apparatus. The container will usually be partially I

filled with water and the packaged chemical is added. When you

the container is equipped with devices for stirring water

so, the contents of the bag are released faster. It is preferred that you

in the liberation 'takes place in less than approx. 1 minute, e.g. IN

30-40 seconds. It will be understood that the time it will take you

releasing the chemical will depend on a number of factors

besides the nature of the bag, including the temperature of the water and the degree I

of stirring. IN

30 When the casing is a bag or package, the walls * I

thickness is kept to a minimum, provided that I

the walls have sufficient strength to facilitate rapid dissolution

or dispersion in water. A thickness of e.g. ca. IN

30 μΐπ is particularly suitable, although larger packages may require I

35 thicker walls. The thicker the wall, the longer the resolution

or dispersing the wall material roofs. It will be understood, I

DK 175675 B1 I

the sheath of the invention may comprise a wall region, I

which dissolves or disperses faster than the rest in order to

facilitate quick release of the contents of the case. IN

Suitable organic liquid solvents include I

5 petroleum-based solvents, e.g. petroleum ethers, I

mineral oils, aliphatic or aromatic hydrocarbons, I

eg. hexane, octane, cyclohexane, benzene, xylene and naphthalene, I

halogenated aliphatic or aromatic hydrocarbons,

eg. carbon tetrachloride, chloroform, methylene chloride and I

In 10 chlorobenzene, esters, e.g. amyl acetate, ketones, e.g. IN

cyclohexanone, ethers or a higher alcohol (lower alcohol-I

cavities can migrate through the water-soluble or water-dispersed I

processable materials described above, which may result

in that product occurs on the outside of the casing). The ten

15 it will be understood that mixtures of solvents, e.g. bian- I

of a hydrocarbon solvent with another solution

solvent, e.g. a ketone or a higher alcohol, I

can also be used. The organic liquid must be reasonable

. dry and typically contains less than 2-3% water to ensure, I

20 that it does not leak out of the casing too soon. IN

The liquid content of the case is thickened or made

thixotropic. An increased viscosity of the contents may increase

reduce the likelihood of the casing breaking if em- I

the balloon is subjected to mechanical shock, especially as the casing comprises- I

25 is a flexible wall. The contents of the casing can be made more viscous I

or thixotropically by including additives, e.g. a modified organophilic material, bentonite, lecithin, polymethylene oxide or silica gel.

The concentrations of pesticide or herbicide dissolved or dispersed in the organic liquid will generally be the concentrations normally used. However, to reduce the size of each casing, the concentrations can be increased. Each casing preferably contains at least approx.

500 ml and preferably contains an appropriate standard volume, e.g. 500 ml or 1 liter, although it will be understood that any suitable standard can be selected.

I DK 175675 B1 I

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dardvolumen. IN

H Preferably, the filled casing is packaged in an I

H exterior waterproof container, e.g. as described in more detail- I

H | cited in DK Patent Application No. 2972/90 (which relates to a packaging I

H 5 makes for a liquid comprising an outer container having I

a shock-absorbing base, and an internally water-soluble I

or water-dispersible casing containing the liquid) which I

H both protect the case from water and premature solution, I

and which also acts as another barrier between the con- I

H 10 centered and potentially toxic fluids and personnel that I

handles the container, and the environment. The outer container I

may be in the form of a container formed of plastic material I

with a resealable and resealable lid containing two I

or more of the casings. Preferably, each shelf is packaged

15, however, in a separate outer container. In this I

in case the outer container is preferably formed of I

thermoplastic material which is injection molded or blow molded

H to form a container having a top, one substantially

straight flat flange, a side wall and a base. It filled holster I

20 is placed in the container and then a foil lid of I is sealed

the top of the substantially flat flange for providing I

To provide a completely sealed and sealed exterior

I! holder. The lid is typically made of aluminum foil and I

In the heat seal on the top flange of the container, but so can you

I 25 be made of a plastic film or laminate of I

In paper, plastic and / or aluminum. IN

The lid is heat sealed preferably on top of the bed

the holder for providing a good barrier to I

leakage if the casing breaks down. It is preferably I

30 larger than the top of the container to provide an I

I In tab, which is easy to grasp to remove the lid. IN

! A laminated lid is preferred, e.g. a paper / alu- I

minium / plastic laminate in which the plastic layer can heat

are sealed to the lid to provide a hermetic seal

35 sailing. The aluminum layer provides a barrier against any I

small holes that may appear in the plastic layer. The paper gives you

9 DK 175675 B1 strength and processability, and a marking can be printed or affixed thereon. The resin material is preferably polyethylene terephthalate (PET) which provides a good barrier to possible leakage, has good heat sealing properties, allows easy removal of the lid before use, does not contain halogen which is potentially harmful to the environment when the lid is to be disposed of, and resists shock. Other resin materials I may also be used, e.g. polyvinylidene chloride (PVDC), polyvinyl alcohol, polypropylene or polyamide.

Preferably, information is provided on the outside of the container regarding the contents of the casing, instructions for use, and any warnings regarding the nature and toxicity of the chemical. This information may be on the foil lid or on a label attached to the outer wall of the outer container.

The gap between the casing and the outer container is preferably at least approx. 5% of the volume of the container; the gap is preferably no more than approx. 30%. Larger spaces may be used, but may be less attractive commercially; 20-20-25% is preferred and approx. 25% is particularly preferred. The flour limb is preferably isolated from the atmosphere, e.g. with a hermetic seal on the outer container. The relative humidity of the gap is preferably about 45 to 70% (more preferably 50-60%, with about 50% being most preferred) at a temperature of 20 ° C.

When the sheath material is PVA film, the mechanical properties of the film are affected by its moisture content. Moisture in the foil is in equilibrium with humidity both in any air gap in the casing and in any space between the casing and the outer container. The equilibrium point varies with the temperature so that the film can either absorb moisture or release it during storage. A relative humidity of 45-70% at 20 ° C has been found to maintain the optimum storage properties of the sheath material.

The packaging according to the preferred aspects of the present invention provides a solid two-

DK 175675 B1 I

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H step packaging, which provides secure transport of concentrates

Cures chemicals and enables handling of potentially toxic I

chemicals with minimal risk to humans and the environment. IN

The following example illustrates the production of an 'I

5 water-soluble packaging according to the invention. IN

Example I

H PVA Foil is used to form bags containing I

a liquid herbicide by the following procedure under I

10 of conventional bag making equipment. IN

The PVA film used is of the type "Syntana KAM-PVA-I

film which is soluble in cold water has a thickness of 40 l

µπ \ and one. saponification rate of 88 mol%. IN

H The liquid herbicide is a mixture of bromoxynil-I

15 and ioxynil esters in solution in a naphthalene solution I

In the middle. The liquid contains less than 3% water. IN

I An open top bag is made from the PVA film I

You shape the foil around a shoulder and then simultaneously

H heat seal the bottom and side of the bag. A jaw pressure is used

I 20 at 2 kg / cm2 with a jaw temperature of 160 ° C and a holding time of 1

For 1 second. The ambient temperature is 18 ° C and the relative I

humidity 35%. IN

Then add 500 ml of the liquid herbicide to I

In the bag, the top of which is then sealed, leaving an air meal

25 limbs of 4-5% volume remain in the bag. Each bag is yours

In 120 x 205 mm and 10 bags are produced per. minute. IN

I Each sealed bag is heat sealed at the top after adding

In setting the liquid while maintaining an air gap of 4- I

5% of the bag volume, whereby the bag is approx. 80% filled with I

30 fluid. The bag is therefore both incompletely filled and has an I

air spaces above the liquid. IN

Each bag is then placed in a container as illustrated

right on the attached drawing. The container material is polypropylene

lene. Each container is sealed using a laminate

35 top, comprising PET (polyethylene terephthalate), alumina

nium and paper layers. The PET layer is heat sealed to the container I

DK 175675 B1 in 11 top flange, thereby leaving an air gap between the bag and the container. The relative humidity in the air gap is 50% at 20 ° C.

A further example of a package according to the present invention will now be described by reference. to the drawing, in which:

Figure 1 is a side view of the finished packaging.

Figure 2 shows the outside container from below.

Figure 3 shows half the longitudinal radial section through the finished packaging.

The package comprises an outer container 1 having a foil cover 2 surrounding and enclosing a casing (a bag or package) 3. The bag or package 3 is made of oriented polyvinyl alcohol film 4, which is soluble in cold water made from 88 % alcoholized polyvinyl acetate, with a wall thickness of 30 μπι, heat-sealed to form a package containing 500 ml of a concentrated dispersion 5 of a chemical in an organic liquid. The package 3 is located within the container 1, which comprises a substantially flat 20 top flange 6 which, at an upper collar portion 7, is connected to a tapered side wall 8. The container 1 also comprises a foot 9 which is connected to the lower end of the container. the side wall 8 at a shock-absorbing portion 10. The container has a roughly rectangular cross-section with rounded corners between adjacent 25 sides and with outwardly curved surfaces as most clearly shown in Figure 2. The rectangular shape of the container enables relatively efficient packaging of a number of containers together. The container is also tapered downwardly as shown in Figure 1, in this case by 3-4 ° from the vertical direction, and this allows a number of containers to be stacked together when empty, for easy storage or disposal. The taper also indicates that the package is supported by the container walls against downward movement. The container 1 is injection molded from a block polymer polypropylene having a high melt flow index and typically having a constant wall thickness throughout e.g. substantially 1 mm. The container is made transparent

I DK 175675 B1 I

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so that, as described below, the leakage of the package I

can be detected without opening the container. In an alternative, I

Η As a guide, the foot can only be made transparent so that you

H! leaks can be seen. In addition, polypropylene is water resistant and I

H 5 this makes washing the container easier. The material, by I.

H in which the container is made, in this embodiment I

H polypropylene, is sufficiently rigid to support and support

H shoot the package, but also has some flexibility which helps you

Helps absorb shock or impact on the packaging. IN

The shock-absorbing part 10 is corrugated, the I

is S-shaped in cross-section as shown in Figure 3, and the ratio I

between the length of the part and its thickness is approx. 9: 1, as this I

ratio is selected to allow the desired degree of bending I

having regard to the flexibility of the material of which I

It is formed. 1 I

The corrugated portion forms a generally transverse I

connection connecting the lower edge of the sidewall 8 I

to the upper edge of the foot 9, which may bend as a result I

of the natural elasticity of the plastic material allowing, I

20 that there is some relative movement up and down between I

foot 9 and sidewall 8. This bend absorbs shock

In loads applied to the container 1, e.g. if the inadvertent I

You are lost, e.g. during transport or handling. During trans- I

port of the packaging can contain any outer packaging

In keeping an array of such packaging is lost or in I

At least suffer significant shock loads when trans- I

You are ported with e.g. truck, or even when raised or I

You are lowered by e.g. a forklift. The shock absorbing part. IN

Formed between the container's foot and sidewall, it bends and absorbs

30 bear such shock loads, and this mitigates in part> I

the loads applied to the casing and ensures that the exterior I

does not retain cracks during the application of such a shock

loading. Likewise, the shock absorbing portion, I

after the packaging has been removed from any exterior

35 container, loads if the packaging is accidentally dropped

on a massive floor, just before opening to access I

DK 175675 B1 I

the sleeve. If the packaging falls on the foot, it absorbs I

shock absorbing part typically any shock load which saw- I

conductor is applied to the container. If the container falls on page I

- the wall, the rounded nature of the side wall means that side I

The 5 wall can bend and in turn absorb any shock load.

• If the container lands on its top flange, it also has I

also the propensity to bend and absorb the shock load. IN

As can be seen from Figure 3, the foot 9 is formed with an I

elevated central portion surrounded by a channel 11. The channel is I

10 provided to collect any liquid which accidentally i

leaks from the package before use. Then the container, or in I

Since at least this part of it is transparent, it is possible for you

for the user to look at the foot and determine if the package is. IN

become leaky before opening the container. Thus, random I

15 contact with exposed content is avoided. As can be seen from Figure I

3, the elevated central portion of the foot leaves a compartment I

below it, which, when the container is placed on a shelf, I

will form a closed cavity. This can cause problems, I

if the package leaks to the container because vapor from the concentrate, I

20 can pass through the container material into the cavity, I

where it will be captured and may attack the shelf or an I

possibly overcoat on the shelf. In order to enable friend- i

tilation of this cavity is the underside of channel 11 formed I

with at least one niche or gutter {not shown) located radially 25 in the foot.

In this embodiment, the corrugated portion 10 also provides an inner annular shoulder to the container upon which the package rests. The wave curve provides a smooth surface that will not strain or puncture the package. Thus, the package is supported over the bottom of the container, resulting in further isolation from mechanical shock. The package can also bend under tension into the gap to absorb shock.

The inside of the container is deliberately smoothed so that the package easily slides out of the container for use.

The package 3 is held in the container 1 by a foil cover 2 which is heat-sealed on the flange 6 of the container 1 or as a j

I DK 175675 B1 I

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alternatively may be associated with an adhesive. IN

The film cover 2 in the present embodiment is I

made of a heat-sealable laminated material, I

such as a polyethylene terephthalate / aluminum / paper laminate, and I

5 is larger than the outside diameter of the flange 6, which I

leaves a large tab around the container which can be used I

for tearing off the lid. IN

The outer container 1 and the lid 2 provide protection I

H for the package 3, thus protecting it from contact with water I

! 10 and therefore towards premature resolution. It also provides an exterior

equal barrier layers around the concentrate 5 within the bag I

H or the package 3 to provide an additional barrier I

H in case of breakage of the bag or package 3, which causes I

H prevents the potentially harmful chemical 5 from contacting I

H 15 staff or the environment. However, in order to use I

the concentrate is simply removed the foil cover 2, upon which the package, I

which is still sealed, is lowered into a spray tank inside

H holding a predetermined amount of water. The material 4 of I

The H bag or package dissolves quickly in the water, thereby containing

20 it is dispersed in the water in the spray tank by mixing. IN

The outer container 1 is not contaminated with the concentrate

treated chemical and can thus be disposed of without any

take any special precautions, and the staff you

has to do with the concentrated chemical, you never come

25 in contact with it, thereby involving the dangers and risks

in handling such potentially harmful materials

decreases. IN

I 30 I

Claims (13)

15 In Patent Claims. IN A package comprising a liquid (5) which is a compound which is potentially toxic or harmful or damaging to health or the environment, or a solution. I or dispersion in an organic liquid of a compound which is potentially toxic or harmful or harmful to health or the environment contained in a casing (3) which is or comprises a water-soluble or water-dispersible material (4), which is insoluble and non-dispersible in the liquid (5), and the casing (3) comprises a flexible wall, characterized in that the package contains from I 0.25 to 3 liters of liquid (5) and the liquid comprises a additive for increasing the viscosity of the liquid. IN The packaging of claim 1, wherein the liquid (5) comprises in I 115 a pesticide. IN The package of claim 1 or 2, wherein the sheath I (3) comprises an air gap which is preferably 4-10% of the volume of the sheath (3). IN A package according to any one of the preceding claims, wherein the total volume of the liquid (5) and any air gap present is less than the maximum possible capacity of the sheath (3) so that the sheath is loosely filled and can bend. Packaging according to any one of the preceding claims, comprising from 0.5 to 2 liters of liquid (5). A package according to any one of the preceding claims, wherein the maximum tensile strength of the sheath material (4) is at least 20 N / mm 2, preferably from 30 to 80 N / mm 2, and the elongation at break is from 200 to 380%, preferably 220 to 350%. A package according to any one of the preceding claims, wherein the thickness of the sheath material (4) is from 10 to 500 μΓΠ, preferably from 20 to 100 μιη. A package according to any one of the preceding claims, wherein the sheath material (4) comprises polyethylene oxide or methyl cellulose. A package according to any one of claims 1-7, wherein the sheath material (4) comprises polyvinyl alcohol. IN Packaging according to any one of the preceding claims, wherein the content is released in less than 10 minutes, preferably in less than 1 minute, after contact with water. A package according to any one of the preceding claims, wherein the organic liquid (5) comprises an petroleum-based IH solvent, a mineral oil, an aliphatic or aromatic IH hydrocarbon, a halogenated aliphatic or aromatic hydrocarbon, an ester, a ketone, an ether or a higher IH 10 alcohol. IN Packaging according to any one of the preceding claims, I H where. the additive for increasing the viscosity of the liquid (5) is a modified organophilic material or in bentonite, lecithin, polymethylene oxide or silica gel. A package according to any one of the preceding claims, comprising a fungicide or insecticide. IN 20 I I 25 I I 30 '1